merge trunk

823 files changed, 48482 insertions, 29634 deletions

diff --git a/.fossil-settings/binary-glob b/.fossil-settings/binary-glob
new file mode 100644
index 0000000..ca85874
--- /dev/null
+++ b/.fossil-settings/binary-glob
@@ -0,0 +1,3 @@
+*.bmp
+*.gif
+*.png
diff --git a/.fossil-settings/crnl-glob b/.fossil-settings/crnl-glob
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/.fossil-settings/crnl-glob
diff --git a/.fossil-settings/ignore-glob b/.fossil-settings/ignore-glob
new file mode 100644
index 0000000..9ed86b1
--- /dev/null
+++ b/.fossil-settings/ignore-glob
@@ -0,0 +1,24 @@
+*.a
+*.dll
+*.dylib
+*.exe
+*.exp
+*.lib
+*.o
+*.obj
+*.res
+*.sl
+*.so
+*/Makefile
+*/config.cache
+*/config.log
+*/config.status
+*/tclConfig.sh
+*/tclsh*
+*/tcltest*
+*/versions.vc
+unix/dltest.marker
+unix/tcl.pc
+unix/pkgs/*
+win/pkgs/*
+win/tcl.hpj
diff --git a/.project b/.project
new file mode 100644
index 0000000..358cc74
--- /dev/null
+++ b/.project
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>tcl8.6</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+	</buildSpec>
+	<natures>
+	</natures>
+</projectDescription>
diff --git a/.settings/org.eclipse.core.resources.prefs b/.settings/org.eclipse.core.resources.prefs
new file mode 100644
index 0000000..99f26c0
--- /dev/null
+++ b/.settings/org.eclipse.core.resources.prefs
@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8
diff --git a/.settings/org.eclipse.core.runtime.prefs b/.settings/org.eclipse.core.runtime.prefs
new file mode 100644
index 0000000..5a0ad22
--- /dev/null
+++ b/.settings/org.eclipse.core.runtime.prefs
@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+line.separator=\n
diff --git a/ChangeLog b/ChangeLog
index 2c6a2ce..e2881a0 100644..100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,16 +1,926 @@
+A NOTE ON THE CHANGELOG:
+Starting in early 2011, Tcl source code has been under the management of
+fossil, hosted at http://core.tcl.tk/tcl/ .  Fossil presents a "Timeline"
+view of changes made that is superior in every way to a hand edited log file.
+Because of this, many Tcl developers are now out of the habit of maintaining
+this log file.  You may still find useful things in it, but the Timeline is
+a better first place to look now.
+============================================================================
+
+2013-09-19  Don Porter  <dgp@users.sourceforge.net>
+
+	*** 8.6.1 TAGGED FOR RELEASE ***
+
+	* generic/tcl.h:	Bump version number to 8.6.1.
+	* library/init.tcl:
+	* unix/configure.in:
+	* win/configure.in:
+	* unix/tcl.spec:
+	* README:
+
+	* unix/configure:	autoconf-2.59
+	* win/configure:
+
+2013-09-19  Donal Fellows  <dkf@users.sf.net>
+
+	* doc/next.n (METHOD SEARCH ORDER): Bug [3606943]: Corrected
+	description of method search order.
+
+2013-09-18  Donal Fellows  <dkf@users.sf.net>
+
+	Bump TclOO version to 1.0.1 for release.
+
+2013-09-17  Donal Fellows  <dkf@users.sf.net>
+
+	* generic/tclBinary.c (BinaryEncodeUu, BinaryDecodeUu): [Bug 2152292]:
+	Corrected implementation of the core of uuencode handling so that the
+	line length processing is correctly applied.
+	***POTENTIAL INCOMPATIBILITY***
+	Existing code that was using the old versions and working around the
+	limitations will now need to do far less. The -maxlen option now has
+	strict limits on the range of supported lengths; this is a limitation
+	of the format itself.
+
+2013-09-09  Donal Fellows  <dkf@users.sf.net>
+
+	* generic/tclOOMethod.c (CloneProcedureMethod): [Bug 3609693]: Strip
+	the internal representation of method bodies during cloning in order
+	to ensure that any bound references to instance variables are removed.
+
+2013-09-01  Donal Fellows  <dkf@users.sf.net>
+
+	* generic/tclBinary.c (BinaryDecodeHex): [Bug b98fa55285]: Ensure that
+	whitespace at the end of a string don't cause the decoder to drop the
+	last decoded byte.
+
+2013-08-03  Donal Fellows  <dkf@users.sf.net>
+
+	* library/auto.tcl: [Patch 3611643]: Allow TclOO classes to be found
+	by the autoloading mechanism.
+
+2013-08-02  Donal Fellows  <dkf@users.sf.net>
+
+	* generic/tclOODefineCmds.c (ClassSuperSet): Bug [9d61624b3d]: Stop
+	crashes when emptying the superclass slot, even when doing elaborate
+	things with metaclasses.
+
+2013-08-01  Harald Oehlmann  <oehhar@users.sf.net>
+
+	* tclUnixNotify.c (Tcl_InitNotifier): Bug [a0bc856dcd]: Start notifier
+	thread again if we were forked, to solve Rivet bug 55153.
+
+2013-07-05  Kevin B. Kenny  <kennykb@acm.org>
+
+	* library/tzdata/Africa/Casablanca:
+	* library/tzdata/America/Asuncion:
+	* library/tzdata/Antarctica/Macquarie:
+	* library/tzdata/Asia/Gaza:
+	* library/tzdata/Asia/Hebron:
+	* library/tzdata/Asia/Jerusalem:
+	http://www.iana.org/time-zones/repository/releases/tzdata2013d.tar.gz
+
+2013-07-03  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/tclXtNotify.c: Bug [817249]: bring tclXtNotify.c up to date with
+	Tcl_SetNotifier() change.
+
+2013-07-02  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/tcl.m4:  Bug [32afa6e256]: dirent64 check is incorrect in tcl.m4
+	* unix/configure: (thanks to Brian Griffin)
+
+2013-06-27  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclConfig.c: Bug [9b2e636361]: Tcl_CreateInterp() needs
+	* generic/tclMain.c:   initialized encodings.
+
+2013-06-18  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclEvent.c: Bug [3611974]: InitSubsystems multiple thread
+	issue.
+
+2013-06-17  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/regc_locale.c: Bug [a876646efe]: re_expr character class
+	[:cntrl:] should contain \u0000 - \u001f
+
+2013-06-09  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCompCmdsSZ.c (TclCompileTryCmd): [Bug 779d38b996]:
+	Rewrote the [try] compiler to generate better code in some cases and
+	to behave correctly in others; when an error happens during the
+	processing of an exception-trap clause or a finally clause, the
+	*original* return options are now captured in a -during option, even
+	when fully compiled.
+
+2013-06-05  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclExecute.c (INST_EXPAND_DROP): [Bugs 2835313, 3614226]:
+	New opcode to allow resetting the stack to get rid of an expansion,
+	restoring the stack to a known state in the process.
+	* generic/tclCompile.c, generic/tclCompCmds.c: Adjusted the compilers
+	for [break] and [continue] to get stack cleanup right in the majority
+	of cases.
+	* tests/for.test (for-7.*): Set of tests for these evil cases.
+
+2013-06-04  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/tcl.m4: Eliminate NO_VIZ macro as current zlib uses HAVE_HIDDEN
+	instead. One more last-moment fix for FreeBSD by Pietro Cerutti
+
+2013-06-03  Miguel Sofer  <msofer@users.sf.net>
+
+	* generic/tclExecute.c: fix for perf bug detected by Kieran
+	(https://groups.google.com/forum/?fromgroups#!topic/comp.lang.tcl/vfpI3bc-DkQ),
+	diagnosed by dgp to be a close relative of [Bug 781585], which was
+	fixed by commit	[f46fb50cb3]. This bug was introduced by myself in
+	commit [cbfe055d8c].
+
+2013-06-03  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCompCmds.c (TclCompileBreakCmd, TclCompileContinueCmd):
+	Added code to allow [break] and [continue] to be issued as a jump (in
+	the most common cases) rather than using the more expensive exception
+	processing path in the bytecode engine. [Bug 3614226]: Partial fix for
+	the issues relating to cleaning up the stack when dealing with [break]
+	and [continue].
+
+2013-05-27 Harald Oehlmann  <oehhar@users.sf.net>
+
+	* library/msgcat/msgcat.tcl: [Bug 3036566]: Also get locale from
+	registry key HCU\Control Panel\Desktop : PreferredUILanguages to honor
+	installed language packs on Vista+.
+	Bumped msgcat version to 1.5.2
+
+2013-05-22  Andreas Kupries  <andreask@activestate.com>
+
+	* tclCompile.c: Removed duplicate const qualifier causing the HP
+	native cc to error out.
+
+2013-05-22  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclUtf.c (TclUtfCasecmp): [Bug 3613609]: Replace problematic
+	uses of strcasecmp with a proper UTF-8-aware version. Affects both
+	[lsearch -nocase] and [lsort -nocase].
+
+2013-05-22  Donal K. Fellows  <dkf@users.sf.net>
+
+	* doc/file.n: [Bug 3613671]: Added note to portability section on the
+	fact that [file owned] does not produce useful results on Windows.
+
+2013-05-20  Donal K. Fellows  <dkf@users.sf.net>
+
+	* unix/tclUnixFCmd.c (DefaultTempDir): [Bug 3613567]: Corrected logic
+	for checking return code of access() system call, which was inverted.
+
+2013-05-19  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/tcl.m4:     Fix for FreeBSD, and remove support for older
+	* unix/configure:  FreeBSD versions. Patch by Pietro Cerutti.
+
+2013-05-18  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCompCmdsGR.c: Split tclCompCmds.c again to keep size of
+	code down.
+
+2013-05-16  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclBasic.c: Add panic in order to detect incompatible
+	mingw32 sys/stat.h and sys/time.h headers.
+
+2013-05-13  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* compat/zlib/*: Upgrade to zlib 1.2.8
+
+2013-05-10  Donal K. Fellows  <dkf@users.sf.net>
+
+	Optimizations and general bytecode generation improvements.
+	* generic/tclCompCmds.c (TclCompileAppendCmd, TclCompileLappendCmd):
+	(TclCompileReturnCmd): Make these generate bytecode in more cases.
+	(TclCompileListCmd): Make this able to push a literal when it can.
+	* generic/tclCompile.c (TclSetByteCodeFromAny, PeepholeOptimize):
+	Added checks to see if we can apply some simple cross-command-boundary
+	optimizations, and defined a small number of such optimizations.
+	(TclCompileScript): Added the special ability to compile the list
+	command with expansion ([list {*}blah]) into bytecode that does not
+	call an external command.
+
+2013-05-06  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclStubInit.c: Add support for Cygwin64, which has a 64-bit
+	* generic/tclDecls.h: "long" type. Binary compatibility with win64
+	requires that all stub entries use 32-bit long's, therefore the need
+	for various wrapper functions/macros. For Tcl 9 a better solution is
+	needed, but that cannot be done without introducing binary
+	incompatibility.
+
+2013-04-30  Andreas Kupries  <andreask@activestate.com>
+
+	* library/platform/platform.tcl (::platform::LibcVersion):
+	* library/platform/pkgIndex.tcl: Followup to the 2013-01-30 change.
+	The RE become too restrictive again. SuSe added a timestamp after the
+	version. Loosened up a bit. Bumped package to version 1.0.12.
+
+2013-04-29  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCompCmds.c (TclCompileArraySetCmd): Generate better code
+	when the list of things to set is a literal.
+
+2013-04-25  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclDecls.h: Implement Tcl_NewBooleanObj, Tcl_DbNewBooleanObj
+	and Tcl_SetBooleanObj as macros using Tcl_NewIntObj, Tcl_DbNewLongObj
+	and Tcl_SetIntObj. Starting with Tcl 8.5, this is exactly the same, it
+	only eliminates code duplication.
+	* generic/tclInt.h: Eliminate use of NO_WIDE_TYPE everywhere: It's
+	exactly the same as TCL_WIDE_INT_IS_LONG
+
+2013-04-19  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclDecls.h: Implement many Tcl_*Var* functions and
+	Tcl_GetIndexFromObj as (faster/stack-saving) macros around resp their
+	Tcl_*Var*2 equivalent and Tcl_GetIndexFromObjStruct.
+
+2013-04-12  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclDecls.h: Implement Tcl_Pkg* functions as
+	(faster/stack-saving) macros around Tcl_Pkg*Ex functions.
+
+2013-04-08  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/regc_color.c:	[Bug 3610026]: Stop crash when the number of
+	* generic/regerrs.h:	"colors" in a regular expression overflows a
+	* generic/regex.h:	short int.  Thanks to Heikki Linnakangas for
+	* generic/regguts.h:	the report and the patch.
+	* tests/regexp.test:
+
+2013-04-04  Reinhard Max  <max@suse.de>
+
+	* library/http/http.tcl (http::geturl): Allow URLs that don't have a
+	path, but a query query, e.g. http://example.com?foo=bar
+	* Bump the http package to 2.8.7.
+
+2013-03-22  Venkat Iyer <venkat@comit.com>
+	* library/tzdata/Africa/Cairo: Update to tzdata2013b.
+	* library/tzdata/Africa/Casablanca:
+	* library/tzdata/Africa/Gaborone:
+	* library/tzdata/Africa/Tripoli:
+	* library/tzdata/America/Asuncion:
+	* library/tzdata/America/Barbados:
+	* library/tzdata/America/Bogota:
+	* library/tzdata/America/Costa_Rica:
+	* library/tzdata/America/Curacao:
+	* library/tzdata/America/Nassau:
+	* library/tzdata/America/Port-au-Prince:
+	* library/tzdata/America/Santiago:
+	* library/tzdata/Antarctica/Palmer:
+	* library/tzdata/Asia/Aden:
+	* library/tzdata/Asia/Hong_Kong:
+	* library/tzdata/Asia/Muscat:
+	* library/tzdata/Asia/Rangoon:
+	* library/tzdata/Asia/Shanghai:
+	* library/tzdata/Atlantic/Bermuda:
+	* library/tzdata/Europe/Vienna:
+	* library/tzdata/Pacific/Easter:
+	* library/tzdata/Pacific/Fiji:
+	* library/tzdata/Asia/Khandyga: (new)
+	* library/tzdata/Asia/Ust-Nera: (new)
+	* library/tzdata/Europe/Busingen: (new)
+
+2013-03-21  Don Porter  <dgp@users.sourceforge.net>
+
+	* library/auto.tcl: [Bug 2102614]: Add ensemble indexing support to
+	* tests/autoMkindex.test: [auto_mkindex].  Thanks Brian Griffin.
+
+2013-03-19  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/tclFCmd.c: [Bug 3597000]: Consistent [file copy] result.
+	* tests/fileSystem.test:
+
+2013-03-19  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* win/tclWinFile.c: [Bug 3608360]: Incompatible behaviour of "file
+	exists".
+
+2013-03-18  Donal K. Fellows  <dkf@users.sf.net>
+
+	* tests/cmdAH.test (cmdAH-19.12): [Bug 3608360]: Added test to ensure
+	that we never ever allow [file exists] to do globbing.
+
+2013-03-12  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/tcl.m4: Patch by Andrew Shadura, providing better support for
+	three architectures they have in Debian.
+
+2013-03-11  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/tclCompile.c:	[Bugs 3607246,3607372]: Unbalanced refcounts
+	* generic/tclLiteral.c:	of literals in the global literal table.
+
+2013-03-06  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/regc_nfa.c:	[Bugs 3604074,3606683]: Rewrite of the
+	* generic/regcomp.c:	fixempties() routine (and supporting routines)
+	to completely eliminate the infinite loop hazard. Thanks to Tom Lane
+	for the much improved solution.
+
+2013-02-28  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/tclLiteral.c:	Revise TclReleaseLiteral() to tolerate a NULL
+	interp argument.
+
+	* generic/tclCompile.c:	Update callers and revise mistaken comments.
+	* generic/tclProc.c:
+
+2013-02-27  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/regcomp.c:	[Bug 3606139]: missing error check allows
+	* tests/regexp.test:    regexp to crash Tcl. Thanks to Tom Lane for
+	providing the test-case and the patch.
+
+2013-02-26  Donal K. Fellows  <dkf@users.sf.net>
+
+	* tests/chanio.test (chan-io-28.7): [Bug 3605120]: Stop test from
+	hanging when run standalone.
+
+2013-02-26  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclObj.c: Don't panic if Tcl_ConvertToType is called for a
+	type that doesn't have a setFromAnyProc, create a proper error message.
+
+2013-02-25  Donal K. Fellows  <dkf@users.sf.net>
+
+	* tests/binary.test (binary-41.*): [Bug 3605721]: Test independence
+	fixes. Thanks to Rolf Ade for pointing out the problem.
+
+2013-02-25  Don Porter  <dgp@users.sourceforge.net>
+
+	* tests/assocd.test:	[Bugs 3605719,3605720]: Test independence.
+	* tests/basic.test:	Thanks Rolf Ade for patches.
+
+2013-02-23  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* compat/fake-rfc2553.c: [Bug 3599194]: compat/fake-rfc2553.c is
+	broken.
+
+2013-02-22  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/tclAssembly.c:	Shift more burden of smart cleanup
+	* generic/tclCompile.c:		onto the TclFreeCompileEnv() routine.
+	Stop crashes when the hookProc raises an error.
+
+2013-02-20  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/tclNamesp.c:	[Bug 3605447]: Make sure the -clear option
+	* tests/namespace.test:	to [namespace export] always clears, whether
+	or not new export patterns are specified.
+
+2013-02-20  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* win/tclWinDde.c: [Bug 3605401]: Compiler error with latest mingw-w64
+	headers.
+
+2013-02-19  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclTrace.c:  [Bug 2438181]: Incorrect error reporting in
+	* tests/trace.test:    traces. Test-case and fix provided by Poor
+	Yorick.
+
+2013-02-15  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/regc_nfa.c:	[Bug 3604074]: Fix regexp optimization to
+	* tests/regexp.test:	stop hanging on the expression
+	((((((((a)*)*)*)*)*)*)*)* .  Thanks to Bjørn Grathwohl for discovery.
+
+2013-02-14  Harald Oehlmann  <oehhar@users.sf.net>
+
+	* library/msgcat/msgcat.tcl: [Bug 3604576]: Catch missing registry
+	entry "HCU\Control Panel\International".
+	Bumped msgcat version to 1.5.1
+
+2013-02-11  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclZlib.c (ZlibTransformOutput): [Bug 3603553]: Ensure that
+	data gets written to the underlying stream by compressing transforms
+	when the amount of data to be written is one buffer's-worth; problem
+	was particularly likely to occur when compressing large quantities of
+	not-very-compressible data. Many thanks to Piera Poggio (vampiera) for
+	reporting.
+
+2013-02-09  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclOOBasic.c (TclOO_Object_VarName): [Bug 3603695]: Change
+	the way that the 'varname' method is implemented so that there are no
+	longer problems with interactions due to the resolver. Thanks to
+	Taylor Venable <tcvena@gmail.com> for identifying the problem.
+
+2013-02-08  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/regc_nfa.c (duptraverse): [Bug 3603557]: Increase the
+	maximum depth of recursion used when duplicating an automaton in
+	response to encountering a "wild" RE that hit the previous limit.
+	Allow the limit (DUPTRAVERSE_MAX_DEPTH) to be set by defining its
+	value in the Makefile. Problem reported by Jonathan Mills.
+
+2013-02-05  Don Porter  <dgp@users.sourceforge.net>
+
+	* win/tclWinFile.c:	[Bug 3603434]: Make sure TclpObjNormalizePath()
+	properly declares "a:/" to be normalized, even when no "A:" drive is
+	present on the system.
+
+2013-02-05  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclLoadNone.c (TclpLoadMemory): [Bug 3433012]: Added dummy
+	version of this function to use in the event that a platform thinks it
+	can load from memory but cannot actually do so due to it being
+	disabled at configuration time.
+
+2013-02-04  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCompCmds.c (TclCompileArraySetCmd): [Bug 3603163]: Stop
+	crash in weird case where [eval] is used to make [array set] get
+	confused about whether there is a local variable table or not. Thanks
+	to Poor Yorick for identifying a reproducible crashing case.
+
+2013-01-30  Andreas Kupries  <andreask@activestate.com>
+
+	* library/platform/platform.tcl (::platform::LibcVersion): See
+	* library/platform/pkgIndex.tcl: [Bug 3599098]: Fixed the RE
+	* unix/Makefile.in: extracting the version to avoid issues with
+	* win/Makefile.in: recent changes to the glibc banner. Now targeting a
+	less variable part of the string. Bumped package to version 1.0.11.
+
+2013-01-28  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCompCmds.c (TclCompileArraySetCmd)
+	(TclCompileArrayUnsetCmd, TclCompileDictAppendCmd)
+	(TclCompileDictCreateCmd, CompileDictEachCmd, TclCompileDictIncrCmd)
+	(TclCompileDictLappendCmd, TclCompileDictMergeCmd)
+	(TclCompileDictUnsetCmd, TclCompileDictUpdateCmd)
+	(TclCompileDictWithCmd, TclCompileInfoCommandsCmd):
+	* generic/tclCompCmdsSZ.c (TclCompileStringMatchCmd)
+	(TclCompileStringMapCmd): Improve the code generation in cases where
+	full compilation is impossible but a full ensemble invoke is provably
+	not necessary.
+
+2013-01-26  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/tclUnixCompat.c: [Bug 3601804]: platformCPUID segmentation
+	fault on Darwin.
+
+2013-01-23  Donal K. Fellows  <dkf@users.sf.net>
+
+	* library/http/http.tcl (http::geturl): [Bug 2911139]: Do not do vwait
+	for connect to avoid reentrancy problems (except when operating
+	without a -command option). Internally, this means that all sockets
+	created by the http package will always be operated in asynchronous
+	mode.
+
+2013-01-21  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclInt.decls: Put back Tcl[GS]etStartupScript(Path|FileName)
+	in private stub table, so extensions using this (like Tk 8.4) will
+	continue to work in all Tcl 8.x versions. Extensions using this
+	still cannot be compiled against Tcl 8.6 headers.
+
+2013-01-18  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclPort.h: [Bug 3598300]: unix: tcl.h does not include
+	sys/stat.h
+
+2013-01-17  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCompCmds.c (PushVarName): [Bug 3600328]: Added mechanism
+	for suppressing compilation of variables when we couldn't cope with
+	the results. Useful for some [array] subcommands.
+	* generic/tclEnsemble.c (CompileToCompiledCommand): Must restore the
+	compilation environment when a command compiler fails.
+
+2013-01-16  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclZlib.c (TclZlibInit): [Bug 3601086]: Register the config
+	info in the iso8859-1 encoding as that is guaranteed to be present.
+
+2013-01-16  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* Makefile.in:   Allow win32 build with -DTCL_NO_DEPRECATED, just as
+	* generic/tcl.h: in the UNIX build. Define Tcl_EvalObj and
+	* generic/tclDecls.h: Tcl_GlobalEvalObj as macros, even when
+	* generic/tclBasic.c: TCL_NO_DEPRECATED is defined, so Tk can benefit
+	from it too.
+
+2013-01-14  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* win/tcl.m4: More flexible search for win32 tclConfig.sh, backported
+	from TEA (not actually used in Tcl, only for Tk)
+
+2013-01-14  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclInt.decls: Put back Tcl_[GS]etStartupScript in internal
+	stub table, so extensions using this, compiled against 8.5 headers
+	still run in Tcl 8.6.
+
+2013-01-13  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
+
+	* doc/fileevent.n: [Bug 3436609]: Clarify readable fileevent "false
+	positives" in the case of multibyte encodings/transforms.
+
+2013-01-13  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclIntDecls.h: If TCL_NO_DEPRECATED is defined, make sure
+	that TIP #139 functions all are taken from the public stub table, even
+	if the inclusion is through tclInt.h.
+
+2013-01-12  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclInt.decls: Put back TclBackgroundException in internal
+	stub table, so extensions using this, compiled against 8.5 headers
+	still run in Tcl 8.6.
+
+2013-01-09  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* library/http/http.tcl: [Bug 3599395]: http assumes status line is a
+	proper Tcl list.
+
+2013-01-08  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* win/tclWinFile.c: [Bug 3092089]: [file normalize] can remove path
+	components.	[Bug 3587096]: win vista/7: "can't find init.tcl" when
+	called via junction without folder list access.
+
+2013-01-07  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclOOStubLib.c: Restrict the stub library to only use
+	* generic/tclTomMathStubLib.c: Tcl_PkgRequireEx, Tcl_ResetResult and
+	Tcl_AppendResult, not any other function. This puts least restrictions
+	on eventual Tcl 9 stubs re-organization, and it works on the widest
+	range of Tcl versions.
+
+2013-01-06  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* library/http/http.tcl: Don't depend on Spencer-specific regexp
+	* tests/env.test: syntax (/u and /U) any more in unrelated places.
+	* tests/exec.test:
+	Bump http package to 2.8.6.
+
+2013-01-04  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclEnsemble.c (CompileBasicNArgCommand): Added very simple
+	compiler (which just compiles to a normal invoke of the implementation
+	command) for many ensemble subcommands where we can prove that there
+	is no way for scripts to detect the difference even through error
+	handling or [info level]/[info frame]. This improves the code produced
+	from some ensembles (e.g., [info], [string]) to the point where the
+	ensemble is now not normally seen at the bytecode level at all.
+
+2013-01-04  Miguel Sofer  <msofer@users.sf.net>
+
+	* generic/tclInt.h:      Insure that PURIFY builds cannot exploit the
+	* generic/tclExecute.c:  Tcl stack to hide mem defects.
+
+2013-01-03  Donal K. Fellows  <dkf@users.sf.net>
+
+	* doc/fconfigure.n, doc/CrtChannel.3: Updated to reflect the fact that
+	the minimum buffer size is one byte, not ten. Identified by Schelte
+	Bron on the Tcler's Chat.
+
+	* generic/tclExecute.c (TEBCresume:INST_INVOKE_REPLACE):
+	* generic/tclEnsemble.c (TclCompileEnsemble): Added new mechanism to
+	allow for more efficient dispatch of non-bytecode-compiled subcommands
+	of bytecode-compiled ensembles. This can provide substantial speed
+	benefits in some cases.
+
+2013-01-02  Miguel Sofer  <msofer@users.sf.net>
+
+	* generic/tclEnsemble.c:  Remove stray calls to Tcl_Alloc and friends:
+	* generic/tclExecute.c:   the core should only use ckalloc to allow
+	* generic/tclIORTrans.c:  MEM_DEBUG to work properly.
+	* generic/tclTomMathInterface.c:
+
+2012-12-31  Donal K. Fellows  <dkf@users.sf.net>
+
+	* doc/string.n: Noted the obsolescence of the 'bytelength',
+	'wordstart' and 'wordend' subcommands, and moved them to later in the
+	file.
+
+2012-12-27  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclListObj.c: [Bug 3598580]: Tcl_ListObjReplace may release
+	deleted elements too early.
+
+2012-12-22  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
+
+	* generic/tclUtil.c: [Bug 3598150]: Stop leaking allocated space when
+	objifying a zero-length DString. Spotted by afredd.
+
+2012-12-21  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/dltest/pkgb.c:  Inline compat Tcl_GetDefaultEncodingDir.
+	* generic/tclStubLib.c: Eliminate unnecessary static HasStubSupport()
+	and isDigit() functions, just do the same inline.
+
+2012-12-18  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCompCmdsSZ.c (TclSubstCompile): Improved the sequence of
+	instructions issued for [subst] when dealing with simple variable
+	references.
+
+2012-12-14  Don Porter  <dgp@users.sourceforge.net>
+
+	*** 8.6.0 TAGGED FOR RELEASE ***
+
+	* changes: updates for 8.6.0
+
+2012-12-13  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/tclZlib.c:	Repair same issue with misusing the
+	* tests/zlib.test:	'fire and forget' nature of Tcl_ObjSetVar2
+	in the new TIP 400 implementation.
+
+2012-12-13  Miguel Sofer  <msofer@users.sf.net>
+
+	* generic/tclCmdAH.c:	(CatchObjCmdCallback): do not decrRefCount
+	* tests/cmdAH.test:	the newValuePtr sent to Tcl_ObjSetVar2:
+	TOSV2 is 'fire and forget', it decrs on its own.
+	Fix for [Bug 3595576], found by andrewsh.
+
+2012-12-13  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tcl.h: Fix Tcl_DecrRefCount macro such that it doesn't
+	access its objPtr parameter twice any more.
+
+2012-12-11  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/tcl.h:	Bump version number to 8.6.0.
+	* library/init.tcl:
+	* unix/configure.in:
+	* win/configure.in:
+	* unix/tcl.spec:
+	* README:
+
+	* unix/configure:	autoconf-2.59
+	* win/configure:
+
+2012-12-10  Donal K. Fellows  <dkf@users.sf.net>
+
+	* tools/tcltk-man2html.tcl (plus-pkgs): Increased robustness of
+	version number detection code to deal with packages whose names are
+	prefixes of other packages.
+	* unix/Makefile.in (dist): Added pkgs/package.list.txt to distribution
+	builds to ensure that 'make html' will work better.
+
+2012-12-09  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
+
+	* tests/chan.test: Clean up unwanted eofchar side-effect of chan-4.6
+	leading to a spurious "'" at end of chan.test under certain conditions
+	(see [Bug 3389289] and [Bug 3389251]).
+
+	* doc/expr.n: [Bug 3594188]: Clarifications about commas.
+
+2012-12-08  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
+
+	* generic/tclIO.c: Fix busyloop at exit under TCL_FINALIZE_ON_EXIT
+	when there are unflushed nonblocking channels.  Thanks Miguel for
+	spotting.
+
+2012-12-07  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/dltest/pkgb.c:  Turn pkgb.so into a Tcl9 interoperability test
+        library: Whatever Tcl9 looks like, loading pkgb.so in Tcl 9 should
+        either result in an error-message, either succeed, but never crash.
+
+2012-11-28  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclZlib.c (ZlibStreamSubcmd): [Bug 3590483]: Use a mechanism
+	for complex option resolution that has fewer problems with more
+	finicky compilers.
+
+2012-11-26  Reinhard Max  <max@suse.de>
+
+	* unix/tclUnixSock.c: Factor out creation of the -sockname and
+	-peername lists from TcpGetOptionProc() to TcpHostPortList().  Make it
+	robust against implementations of getnameinfo() that error out if
+	reverse mapping fails instead of falling back to the numeric
+	representation.
+
+2012-11-20  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclBinary.c (BinaryDecode64): [Bug 3033307]: Corrected
+	handling of trailing whitespace when decoding base64. Thanks to Anton
+	Kovalenko for reporting, and Andy Goth for the fix and tests.
+
+2012-11-19  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclExecute.c (INST_STR_RANGE_IMM): [Bug 3588366]: Corrected
+	implementation of bounds restriction for end-indexed compiled [string
+	range]. Thanks to Emiliano Gavilan for diagnosis and fix.
+
+2012-11-15  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	IMPLEMENTATION OF TIP#416
+
+	New Options for 'load': -global and -lazy
+
+	* generic/tcl.h:
+	* generic/tclLoad.c
+	* unix/tclLoadDl.c
+	* unix/tclLoadDyld.c
+	* tests/load.test
+	* doc/Load.3
+	* doc/load.n
+
+2012-11-14  Donal K. Fellows  <dkf@users.sf.net>
+
+	* unix/tclUnixFCmd.c (TclUnixOpenTemporaryFile): [Bug 2933003]: Factor
+	out all the code to do temporary file creation so that it is possible
+	to make it correct in one place. Allow overriding of the back-stop
+	default temporary file location at compile time by setting the
+	TCL_TEMPORARY_FILE_DIRECTORY #def to a string containing the directory
+	name (defaults to "/tmp" as that is the most common default).
+
+2012-11-13  Joe Mistachkin  <joe@mistachkin.com>
+
+	* win/tclWinInit.c: also search for the library directory (init.tcl,
+	encodings, etc) relative to the build directory associated with the
+	source checkout.
+
+2012-11-10  Miguel Sofer  <msofer@users.sf.net>
+
+	* generic/tclBasic.c:   re-enable bcc-tailcall, after fixing an
+	* generic/tclExecute.c: infinite loop in the TCL_COMPILE_DEBUG mode
+
+
+2012-11-07  Kevin B. Kenny  <kennykb@acm.org>
+
+	* library/tzdata/Africa/Casablanca:
+	* library/tzdata/America/Araguaina:
+	* library/tzdata/America/Bahia:
+	* library/tzdata/America/Havana:
+	* library/tzdata/Asia/Amman:
+	* library/tzdata/Asia/Gaza:
+	* library/tzdata/Asia/Hebron:
+	* library/tzdata/Asia/Jerusalem:
+	* library/tzdata/Pacific/Apia:
+	* library/tzdata/Pacific/Fakaofo:
+	* library/tzdata/Pacific/Fiji:		Import tzdata2012i.
+
+2012-11-06  Donal K. Fellows  <dkf@users.sf.net>
+
+	* library/http/http.tcl (http::Finish): [Bug 3581754]: Ensure that
+	callbacks are done at most once to prevent problems with timeouts on a
+	keep-alive connection (combined with reentrant http package use)
+	causing excessive stack growth. Not a fix for the underlying problem,
+	but ensures that pain will be mostly kept away from users.
+	Bump http package to 2.8.5.
+
+2012-11-05  Donal K. Fellows  <dkf@users.sf.net>
+
+	Added bytecode compilation of many Tcl commands. Some of these are
+	total compilations and some are only partial (i.e., only compile in
+	some cases). The (sub-)commands affected are:
+	* array: exists, set, unset
+	* dict: create, exists, merge
+	* format: (simple cases only)
+	* info: commands, coroutine, level, object
+	* info object: class, isa object, namespace
+	* namespace: current, code, qualifiers, tail, which
+	* regsub: (only cases convertable to simple [string map])
+	* self: (only no-argument and [self object] cases)
+	* string: first, last, map, range
+	* tailcall:
+	* yield:
+
+	[This was work originally done on the 'dkf-compile-misc-info' branch.]
+
+2012-11-05  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	IMPLEMENTATION OF TIP#413
+
+	Align the [string trim] and [string is space] commands, such that
+	[string trim] by default trims all characters for which [string is
+	space] returns 1, augmented with the NUL character.
+
+	* generic/tclUtf.c: Add NEL, BOM and two more characters to [string is
+	space]
+	* generic/tclCmdMZ.c: Modify [string trim] for Unicode modifications.
+	* generic/regc_locale.c: Regexp engine must match [string is space]
+	* doc/string.n
+	* tests/string.test
+	***POTENTIAL INCOMPATIBILITY***
+	Code that relied on characters not previously trimmed being not
+	removed will notice a difference; it is believed that this is rare,
+	but a workaround to get the behavior in Tcl 8.5 is to use " \t\n\r" as
+	an explicit trim set.
+
+2012-10-31  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* win/Makefile.in:   Dde version number to 1.4.0, ready for Tcl 8.6.0rc1
+	* win/makefile.vc
+	* win/tclWinDde.c
+	* library/dde/pkgIndex.tcl
+	* tests/winDde.test
+
+2012-10-24  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCompCmds.c (TclCompileDictUnsetCmd): Added compilation of
+	the [dict unset] command (for scalar var in LVT only).
+
+2012-10-23  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclInt.h:       Add "flags" parameter from Tcl_LoadFile to
+	* generic/tclIOUtil.c:    to various internal functions, so these
+	* generic/tclLoadNone.c:  flags are available through the whole
+	* unix/tclLoad*.c:        filesystem for (future) internal use.
+	* win/tclWinLoad.c:
+
+2012-10-17  Miguel Sofer  <msofer@users.sf.net>
+
+	* generic/tclBasic.c (TclNRCoroutineObjCmd): insure that numlevels
+	are properly set, fix bug discovered by dkf and reported at
+	http://code.activestate.com/lists/tcl-core/12213/
+
+2012-10-16  Donal K. Fellows  <dkf@users.sf.net>
+
+	IMPLEMENTATION OF TIP#405
+
+	New commands for applying a transformation to the elements of a list
+	to produce another list (the [lmap] command) and to the mappings of a
+	dictionary to produce another dictionary (the [dict map] command). In
+	both cases, a [continue] will cause the skipping of an element/pair,
+	and a [break] will terminate the construction early and successfully.
+
+	* generic/tclCmdAH.c (Tcl_LmapObjCmd, TclNRLmapCmd): Implementation of
+	the new [lmap] command, based on (and sharing much of) [foreach].
+	* generic/tclDictObj.c (DictMapNRCmd): Implementation of the new [dict
+	map] subcommand, based on (and sharing much of) [dict for].
+	* generic/tclCompCmds.c (TclCompileLmapCmd, TclCompileDictMapCmd):
+	Compilation engines for [lmap] and [dict map].
+
+	IMPLEMENTATION OF TIP#400
+
+	* generic/tclZlib.c: Allow the specification of a compression
+	dictionary (a binary blob used to seed the compression engine) in both
+	streams and channel transformations. Also some reorganization to allow
+	for getting gzip header dictionaries and controlling buffering levels
+	in channel transformations (allowing a trade-off between formal
+	correctness and speed).
+	(Tcl_ZlibStreamSetCompressionDictionary): New C API to allow setting
+	the compression dictionary without using a Tcl script.
+
+2012-10-14  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclDictObj.c: [Bug 3576509]: ::tcl::Bgerror crashes with
+	* generic/tclEvent.c:    invalid arguments. Better fix, which helps
+	for all Tcl_DictObjGet() calls in Tcl's source code.
+
+2012-10-13  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclEvent.c: [Bug 3576509]: tcl::Bgerror crashes with invalid
+	arguments
+
+2012-10-06  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* win/Makefile.in: [Bug 2459774]: tcl/win/Makefile.in not compatible
+	with msys 0.8.
+
+2012-10-03  Don Porter  <dgp@users.sourceforge.net>
+
+	* generic/tclIO.c:	When checking for std channels being closed,
+	compare the channel state, not the channel itself so that stacked
+	channels do not cause trouble.
+
+2012-09-26  Reinhard Max  <max@suse.de>
+
+	* generic/tclIOSock.c (TclCreateSocketAddress): Work around a bug in
+	getaddrinfo() on OSX that caused name resolution to fail for [socket
+	-server foo -myaddr localhost 0].
+
+2012-09-20  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* win/configure.in: New import libraries for zlib 1.2.7, usable for
+	* win/configure:    all win32/win64 compilers
+	* compat/zlib/win32/zdll.lib:
+	* compat/zlib/win64/zdll.lib:
+
+	* win/tclWinDde.c: [FRQ 3527238]: Full unicode support for dde. Dde
+	version is now 1.4.0b2.
+	***POTENTIAL INCOMPATIBILITY***
+
+2012-09-19  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tcl.h:  Make Tcl_Interp a fully opaque structure if
+	TCL_NO_DEPRECATED is set (TIP 330 and 336).
+	* win/nmakehlp.c: Let "nmakehlp -V" start searching digits after the
+	found match (suggested by Harald Oehlmann).
+
 2012-09-19  Harald Oehlmann  <oehhar@users.sf.net>
 
+	IMPLEMENTATION OF TIP#412.
+
 	* library/msgcat/msgcat.tcl:	dynamic locale change with mc file
 	* library/clock.tcl:            load on locale change.
 	clock uses new msgcat features.
 
-2012-09-19  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.h:  make Tcl_Interp a fully opaque structure
-	if TCL_NO_DEPRECATED is set (TIP 330 and 336).
-	* win/nmakehlp.c: Let "nmakehlp -V" start searching digits
-	after the found match (suggested by Harald Oehlmann)
-
 2012-09-07  Harald Oehlmann  <oehhar@users.sf.net>
 
 	*** 8.6b3 TAGGED FOR RELEASE ***
@@ -42,13 +952,13 @@
 	* win/tclWinPort.h:  Remove wrapper macro for ntohs(): unnecessary,
 	because it doesn't require an initialized winsock_2 library. See:
 	<http://msdn.microsoft.com/en-us/library/windows/desktop/ms740075%28v=vs.85%29.aspx>
-	* win/tclWinSock.c
-	* generic/tclStubInit.c
+	* win/tclWinSock.c:
+	* generic/tclStubInit.c:
 
 2012-08-17  Jan Nijtmans  <nijtmans@users.sf.net>
 
-	* win/nmakehlp.c: Add "-V<num>" option, in order to be able
-	to detect partial version numbers.
+	* win/nmakehlp.c: Add "-V<num>" option, in order to be able to detect
+	partial version numbers.
 
 2012-08-15  Jan Nijtmans  <nijtmans@users.sf.net>
 
@@ -62,11 +972,11 @@
 
 2012-08-13  Jan Nijtmans  <nijtmans@users.sf.net>
 
-	* compat/zlib/win64/zlib1.dll:   Add 64-bit build of zlib1.dll, and use it
-	* compat/zlib/win64/zdll.lib:    for the dynamic mingw-w64 build.
-	* win/Makefile.in
-	* win/configure.in
-	* win/configure
+	* compat/zlib/win64/zlib1.dll:  Add 64-bit build of zlib1.dll, and use
+	* compat/zlib/win64/zdll.lib:   it for the dynamic mingw-w64 build.
+	* win/Makefile.in:
+	* win/configure.in:
+	* win/configure:
 
 2012-08-09  Reinhard Max  <max@suse.de>
 
@@ -3749,6 +4659,7 @@
 	* generic/*Decls.h:   (regenerated)
 
 2010-08-18  Miguel Sofer  <msofer@users.sf.net>
+
 	* generic/tclBasic.c:   New redesign of [tailcall]: find
 	* generic/tclExecute.c: errors early on, so that errorInfo
 	* generic/tclInt.h:     contains the proper info [Bug 3047235]
@@ -4119,8 +5030,7 @@
 2010-05-19  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
 
 	* tests/dict.test: Add missing tests for [Bug 3004007], fixed under
-	                   the radar on 2010-02-24 (dkf): EIAS violation in
-	                   list-dict conversions.
+	the radar on 2010-02-24 (dkf): EIAS violation in list-dict conversions
 
 2010-05-19  Jan Nijtmans  <nijtmans@users.sf.net>
 
@@ -5974,10 +6884,9 @@
 
 2009-11-11  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
 
-	* generic/tclIO.c: Fix [Bug 2888099] (close discards ENOSPC error)
-	                   by saving the errno from the first of two
-	                   FlushChannel()s. Uneasy to test; might need
-	                   specific channel drivers. Four-hands with aku.
+	* generic/tclIO.c: Fix [Bug 2888099] (close discards ENOSPC error) by
+	saving the errno from the first of two FlushChannel()s. Uneasy to
+	test; might need specific channel drivers. Four-hands with aku.
 
 2009-11-10  Pat Thoyts  <patthoyts@users.sourceforge.net>
 
@@ -7934,15 +8843,14 @@
 	implementation of the mkstemp() function, which is apparently needed
 	on some platforms.
 
-        ******************************************************************
-        *** CHANGELOG ENTRIES FOR 2008 IN "ChangeLog.2008"             ***
-        *** CHANGELOG ENTRIES FOR 2006-2007 IN "ChangeLog.2007"        ***
-        *** CHANGELOG ENTRIES FOR 2005 IN "ChangeLog.2005"             ***
-        *** CHANGELOG ENTRIES FOR 2004 IN "ChangeLog.2004"             ***
-        *** CHANGELOG ENTRIES FOR 2003 IN "ChangeLog.2003"             ***
-        *** CHANGELOG ENTRIES FOR 2002 IN "ChangeLog.2002"             ***
-        *** CHANGELOG ENTRIES FOR 2001 IN "ChangeLog.2001"             ***
-        *** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"             ***
-        *** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
-        ******************************************************************
-
+	******************************************************************
+	*** CHANGELOG ENTRIES FOR 2008 IN "ChangeLog.2008"             ***
+	*** CHANGELOG ENTRIES FOR 2006-2007 IN "ChangeLog.2007"        ***
+	*** CHANGELOG ENTRIES FOR 2005 IN "ChangeLog.2005"             ***
+	*** CHANGELOG ENTRIES FOR 2004 IN "ChangeLog.2004"             ***
+	*** CHANGELOG ENTRIES FOR 2003 IN "ChangeLog.2003"             ***
+	*** CHANGELOG ENTRIES FOR 2002 IN "ChangeLog.2002"             ***
+	*** CHANGELOG ENTRIES FOR 2001 IN "ChangeLog.2001"             ***
+	*** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"             ***
+	*** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
+	******************************************************************
diff --git a/ChangeLog.2000 b/ChangeLog.2000
index 2ebdd23..0d20eaf 100644
--- a/ChangeLog.2000
+++ b/ChangeLog.2000
@@ -746,7 +746,7 @@
 
 	* doc/trace.n: minor doc cleanup
 
-2000-09-06  André Pönitz <poenitz@htwm.de>
+2000-09-06  André Pönitz <poenitz@htwm.de>
 
 	* doc/*.n: added or changed "SEE ALSO:" section
 
@@ -1086,7 +1086,7 @@
 	* unix/tcl.m4 (SC_ENABLE_GCC): Don't set CC=gcc before running
 	AC_PROG_CC if CC is already set.
 
-2000-07-13  André Pönitz <poenitz@mathematik.tu-chemnitz.de>
+2000-07-13  André Pönitz <poenitz@mathematik.tu-chemnitz.de>
 
 	* doc/lappend.n:
 	* doc/lindex.n:
diff --git a/ChangeLog.2001 b/ChangeLog.2001
index 6579651..06e7c36 100644
--- a/ChangeLog.2001
+++ b/ChangeLog.2001
@@ -939,7 +939,7 @@
 	version of Tcl with Cygwin gcc. Users should compile with Mingw gcc
 	instead.
 
-2001-11-06  Andreas Kupries  <andreas_kupries@users.sourceforge.net> 
+2001-11-06  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
 
 	* generic/tclIO.c (ReadChars): Fixed [Bug 478856] reported by Stuart
 	Cassoff <stwo@users.sourceforge.net>. The bug caused loss of
diff --git a/ChangeLog.2003 b/ChangeLog.2003
index b12cd2c..c586ba9 100644
--- a/ChangeLog.2003
+++ b/ChangeLog.2003
@@ -3284,7 +3284,7 @@
 
 2003-01-10  Vince Darley  <vincentdarley@users.sourceforge.net>
 
-	* generic/tclIOUtil.c: 
+	* generic/tclIOUtil.c:
 	* win/tclWinInt.h:
 	* win/tclWinInit.c: fix to new WinTcl crash on exit with vfs,
 	introduced on 2002-12-06. Encodings must be cleaned up after the
diff --git a/README b/README
index 56f7e38..f63e0e7 100644
--- a/README
+++ b/README
@@ -1,8 +1,7 @@
 README:  Tcl
-    This is the Tcl 8.6b3 source distribution.
-	http://tcl.sourceforge.net/
-    You can get any source release of Tcl from the file distributions
-    link at the above URL.
+    This is the Tcl 8.6.4 source distribution.
+	http://sourceforge.net/projects/tcl/files/Tcl/
+    You can get any source release of Tcl from the URL above.
 
 Contents
 --------
@@ -27,9 +26,14 @@ Tcl can also be used for a variety of web-related tasks and for creating
 powerful command languages for applications.
 
 Tcl is maintained, enhanced, and distributed freely by the Tcl community.
-The home for Tcl/Tk releases and bug/patch database is on SourceForge:
+Source code development and tracking of bug reports and feature requests
+takes place at:
 
-	http://tcl.sourceforge.net/
+	http://core.tcl.tk/
+
+Tcl/Tk release and mailing list services are hosted by SourceForge:
+
+	http://sourceforge.net/projects/tcl/
 
 with the Tcl Developer Xchange hosted at:
 
@@ -49,7 +53,7 @@ The home page for this release, including new features, is
 
 Detailed release notes can be found at the file distributions page
 by clicking on the relevant version.
-	http://sourceforge.net/projects/tcl/files/
+	http://sourceforge.net/projects/tcl/files/Tcl/
 
 Information about Tcl itself can be found at
 	http://www.tcl.tk/about/
@@ -146,18 +150,13 @@ and go to the Mailing Lists page.
 ------------------------
 
 We are very interested in receiving bug reports, patches, and suggestions
-for improvements.  We prefer that you send this information to us via the
-bug form at SourceForge, rather than emailing us directly.  The bug
-database is at:
-
-	http://tcl.sourceforge.net/
+for improvements.  We prefer that you send this information to us as
+tickets entered into our tracker at:
 
-The bug form was designed to give uniform structure to bug reports as
-well as to solicit enough information to minimize followup questions.
+	http://core.tcl.tk/tcl/reportlist
 
 We will log and follow-up on each bug, although we cannot promise a
-specific turn-around time.  Enhancements, reported via the Feature
-Requests form at the same web site, may take longer and may not happen
+specific turn-around time.  Enhancements may take longer and may not happen
 at all unless there is widespread support for them (we're trying to
 slow the rate at which Tcl/Tk turns into a kitchen sink).  It's very
 difficult to make incompatible changes to Tcl/Tk at this point, due to
diff --git a/changes b/changes
index b6cacf5..16609e7 100644..100755
--- a/changes
+++ b/changes
@@ -126,7 +126,7 @@ Tcl_Eval.
 that came after version 3.3 was released.
 
 40. 5/17/91 Changed tests to conform to Mary Ann May-Pumphrey's approach.
- 
+
 41. 5/23/91 Massive revision to Tcl parser to simplify the implementation
 of string and floating-point support in expressions.  Newlines inside
 [] are now treated as command separators rather than word separators
@@ -260,7 +260,7 @@ argument (before file name), for consistency with other Tcl commands.
 *** POTENTIAL INCOMPATIBILITY ***
 
 72. 8/20/91 Changed format of information in $errorInfo variable:
-comments such as 
+comments such as
     ("while" body line 1)
 are now on separate lines from commands being executed.
 *** POTENTIAL INCOMPATIBILITY ***
@@ -1192,7 +1192,7 @@ under some dynamic loading systems (e.g. SunOS 4.1 and Windows).
 6/8/95 (feature change) Modified interface to Tcl_Main to pass in the
 address of the application-specific initialization procedure.
 Tcl_AppInit is no longer hardwired into Tcl_Main.  This is needed
-in order to make Tcl a shared library. 
+in order to make Tcl a shared library.
 
 6/8/95 (feature change) Modified Makefile so that the installed versions
 of tclsh and libtcl.a have version number in them (e.g. tclsh7.4 and
@@ -1616,7 +1616,7 @@ file name.  Under Windows '95, this is incorrectly interpreted as a UNC
 path.  They delays came from the network timeouts needed to determine that
 the file name was invalid.  Tcl_TranslateFileName now suppresses duplicate
 slashes that aren't at the beginning of the file name. (SS)
-				     
+
 1/25/96 (bug fix) Changed exec and open to create children so they are
 attached to the application's console if it exists. (SS)
 
@@ -2254,21 +2254,21 @@ version of Tcl.  It's quite a bit faster than MetroWerk's version. (RJ)
 8/26/96 (documentation update) Removed old change bars (for all changes
 in Tcl 7.5 and earlier releases) from manual entries. (JO)
 
-8/27/96 (enhancement) The exec and open commands behave better and work in 
-more situations under Windows NT and Windows 95.  Documentation describes 
+8/27/96 (enhancement) The exec and open commands behave better and work in
+more situations under Windows NT and Windows 95.  Documentation describes
 what is still lacking. (CS)
 
 8/27/96 (enhancement) The Windows makefiles will now compile even if the
 compiler is not in the path and/or the compiler's environment variables
-have not been set up. (CS) 
+have not been set up. (CS)
 
-8/27/96 (configuration improvement) The Windows resource files are 
+8/27/96 (configuration improvement) The Windows resource files are
 automatically updated when the version/patch level changes.  The header file
 now has a comment that reminds the user which other files must be manually
 updated when the version/patch level changes. (CS)
 
 8/28/96 (new feature) Added file manipulation features (copy, rename, delete,
-mkdir) that are supported on all platforms. They are implemented as 
+mkdir) that are supported on all platforms. They are implemented as
 subcommands to the "file" command. See the documentation for the "file"
 command for more information. (JH)
 
@@ -2371,7 +2371,7 @@ the Tcl script in the fileevent wasn't closing the socket immediately. (JL)
       package goes in a separate subdirectory of a directory in
       $tcl_pkgPath).  These directories are included in auto_path by
       default.
-    - Changed the package auto-loader to look for pkgIndex.tcl files 
+    - Changed the package auto-loader to look for pkgIndex.tcl files
       not only in the auto_path directories but also in their immediate
       children.  This should make it easier to install and uninstall
       packages (don't have to change auto_path or merge pkgIndex.tcl
@@ -2621,7 +2621,7 @@ lookups of keyword arguments. (JO)
 
 1/12/97 (new feature) Serial IO channel drivers for Windows and Unix,
 available by using Tcl open command to open pseudo-files like "com1:" or
-"/dev/ttya".  New option to Tcl fconfigure command for serial files:  
+"/dev/ttya".  New option to Tcl fconfigure command for serial files:
 "-mode baud,parity,data,stop" to specify baud rate, parity, data bits, and
 stop bits.  Serial IO is not yet available on Mac.
 
@@ -2701,7 +2701,7 @@ to Feb 31.)  The code now will return the last valid day of the
 month in these situations.  Thanks to Hume Smith for sending in
 this bug fix.  (RJ)
 
-2/10/97 (feature change) Eliminated Tcl_StringObjAppend and 
+2/10/97 (feature change) Eliminated Tcl_StringObjAppend and
 Tcl_StringObjAppendObj procedures, replaced them with Tcl_AppendToObj
 and Tcl_AppendStringsToObj procedures.  Added new procedure
 Tcl_SetObjLength. (JO)
@@ -3068,7 +3068,7 @@ compilation errors from "invoked from within" to "while compiling". (BL)
       modified the interpreter result even if there was no error.
     - The argument parsing procedure used by several compile procedures
       always treated "]" as end of a command: e.g., "set a ]" would fail.
-    - Changed errorInfo traceback message for compilation errors from 
+    - Changed errorInfo traceback message for compilation errors from
       "invoked from within" to "while compiling".
     - Problem initializing Tcl object managers during interpreter creation.
     - Added check and error message if formal parameter to a procedure is
@@ -3143,7 +3143,7 @@ is leaked to safe interps. Error message fixes for interp sub commands.
 Likewise changes in safealias.tcl; tcl_safeCreateInterp can now be called
 without argument to generate the slave name (like in interp create). (DL)
 
-7/10/97 (bug fixes) Bytecode compiler now generates more detailed 
+7/10/97 (bug fixes) Bytecode compiler now generates more detailed
 command location information: subcommands as well as commands now have
 location information. This means command trace procedures now get the
 correct source string for each command in their command parameter. (BL)
@@ -3181,7 +3181,7 @@ malloc and free. (SS)
 sourcing/loading (see safe.n) to hide pathnames, use virtual
 paths tokens instead, improved security in several respects and made it
 more tunable. Multi level interp loading can work too now. Package auto
-loading now works in safe interps as long as the package directory is in 
+loading now works in safe interps as long as the package directory is in
 the auto_path (no deep crawling allowed in safe interps). (DL)
 *** POTENTIAL INCOMPATIBILITY with previous alpha and beta releases ***
 
@@ -3209,7 +3209,7 @@ exists" command returns 0 for them. (BL)
 7/29/97 (feature change)  Changed the http package to use the ::http
 namespace. http_get renamed to http::geturl, http_config renamed to
 http::config, http_formatQuery renamed to http::formatQuery.
-It now provides the 2.0 version of the package.  
+It now provides the 2.0 version of the package.
 The 1.0 version is still available with the old names.
 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0b2 but not with Tcl 7.6 ***
 
@@ -3273,7 +3273,7 @@ except that the default precision is 12 instead of 6. (JO)
 ----------------- Released 8.0, 8/18/97 -----------------------
 
 8/19/97 (bug fix) Minimal fix for glob -nocomplain bugs:
-"glob -nocomplain unreadableDir/*" was generating an anonymous 
+"glob -nocomplain unreadableDir/*" was generating an anonymous
 error. More in depth fixes will come with 8.1. (DL).
 
 8/20/97 (bug fix) Removed check for FLT_MIN in binary command so
@@ -3318,7 +3318,7 @@ does not prevent stack overflow by multi-interps recursion or aliasing} (DL)
 9/11/97 (bug fix) An uninitialized variable in Tcl_WaitPid caused
 pipes to fail to report eof properly under Windows. (SS)
 
-9/12/97 (bug fix) "exec" was misidentifying some DOS executables as not 
+9/12/97 (bug fix) "exec" was misidentifying some DOS executables as not
 executable. (CCS)
 
 9/14/97 (bug fix) Was using the wrong structure in sizeof operation in
@@ -3342,7 +3342,7 @@ Roseman for the pointer on the fix.)  (RJ)
 cause the compare function to run off the end of an array if the
 number only contained 0's. (Thanks to Greg Couch for the report.) (RJ)
 
-9/18/97 (bug fix) TclFinalizeEnvironment was not cleaning up 
+9/18/97 (bug fix) TclFinalizeEnvironment was not cleaning up
 properly. (DL, JI)
 
 9/18/97 (bug fix) Fixed long-standing bug where an "array get" command
@@ -3378,9 +3378,9 @@ Now you can "join $list \0" for instance. (DL)
 non-existent directory, exec would fail when trying to create its temporary
 files. (CCS)
 
-10/9/97 (bug fix) Under mac and windows, "info hostname" would crash if 
+10/9/97 (bug fix) Under mac and windows, "info hostname" would crash if
 sockets were installed but the hostname could not be determined anyhow.
-Tcl_GetHostName() was returning NULL when it should have been returning 
+Tcl_GetHostName() was returning NULL when it should have been returning
 an empty string. (CCS)
 
 10/10/97 (bug fix) "file attribute /" returned error on windows. (CCS)
@@ -3468,7 +3468,7 @@ around to be really closed in this case. (JL)
 12/8/97 (bug fix) Need to protect the channel in a fileevent so that it
 is not deleted before the fileevent handler returns. (CS, JL)
 
-12/18/97 (bug fix) In the opt argument parsing package: if the description 
+12/18/97 (bug fix) In the opt argument parsing package: if the description
 had only flags, the "too many arguments" case was not detected. The default
 value was not used for the special "args" ending argument. (DL)
 
@@ -3511,7 +3511,7 @@ that could lead to a crash. (SS)
 non-local variable references. (SS)
 
 6/25/98 (new features) Added name resolution hooks to support [incr Tcl].
-There are new internal Tcl_*Resolver* APIs to add, query and remove the hooks. 
+There are new internal Tcl_*Resolver* APIs to add, query and remove the hooks.
 With this changes it should be possible to dynamically load [incr Tcl]
 as an extension. (MM)
 
@@ -3539,7 +3539,7 @@ TclAccessInsertProc, TclStatInsertProc, & TclOpenFileChannelInsertProc
 insert pointers to such routines; TclAccessDeleteProc, TclStatDeleteProc,
 & TclOpenFileChannelDeleteProc delete pointers to such routines.  See
 the file generic/tclIOUtils.c for more details. (SKS)
- 
+
 7/1/98 (enhancement) Added a new internal C variable
 tclPreInitScript.  This is a pointer to a string that may hold an
 initialization script; If this pointer is non-NULL it is evaluated in
@@ -3623,7 +3623,7 @@ internal representation holds a pointer to a Proc structure. Extended
 TclCreateProc to take both strings and "procbody". (EMS)
 
 10/13/98 (bug fix) The "info complete" command can now handle strings
-with NULLs embedded.  Thanks to colin@field.medicine.adelaide.edu.au 
+with NULLs embedded.  Thanks to colin@field.medicine.adelaide.edu.au
 for providing this fix. (RJ)
 
 10/13/98 (bug fix) The "lsort -dictionary" command did not properly
@@ -3691,7 +3691,7 @@ by default.  Fixed socket code so it turns off this bit right after
 creation so sockets aren't kept open by exec'ed processes. [Bug: 892]
 Thanks to Kevin Kenny for this fix.  (SS)
 
-1/11/98 (bug fix)  On HP, "info sharedlibextension" was returning 
+1/11/98 (bug fix)  On HP, "info sharedlibextension" was returning
 empty string on static apps.  It now always returns ".sl".  (RJ)
 
 1/28/99 (configure change) Now support -pipe option on gcc.  (RJ)
@@ -3736,7 +3736,7 @@ panic. (stanton)
 
 2/2/99 (feature change/bug fix) Changed the behavior of "file
 extension" so that it splits at the last period.  Now the extension of
-a file like "foo..o" is ".o" instead of "..o" as in previous versions. 
+a file like "foo..o" is ".o" instead of "..o" as in previous versions.
 *** POTENTIAL INCOMPATIBILITY ***
 
 ----------------- Released 8.0.5, 3/9/99 -------------------------
@@ -3757,15 +3757,15 @@ a file like "foo..o" is ".o" instead of "..o" as in previous versions.
       of a UTF-8 string remains \0.  Thus Tcl strings once again do not
       contain null bytes, except for termination bytes.
     - For Java compatibility, "\uXXXX" is used in Tcl to enter a Unicode
-      character.  "\u0000" through "\uffff" are acceptable Unicode 
-      characters.  
+      character.  "\u0000" through "\uffff" are acceptable Unicode
+      characters.
     - "\xXX" is used to enter a small Unicode character (between 0 and 255)
       in Tcl.
     - Tcl automatically translates between UTF-8 and the normal encoding for
       the platform during interactions with the system.
     - The fconfigure command now supports a -encoding option for specifying
       the encoding of an open file or socket.  Tcl will automatically
-      translate between the specified encoding and UTF-8 during I/O. 
+      translate between the specified encoding and UTF-8 during I/O.
       See the directory library/encoding to find out what encodings are
       supported (eventually there will be an "encoding" command that
       makes this information more accessible).
@@ -3839,7 +3839,7 @@ imported procedures as well as procedures defined in a namespace. (BL)
 in place of Tcl_GetStringFromObj() if the string representation's length
 isn't needed. (BL)
 
-12/18/97 (bug fix) In the opt argument parsing package: if the description 
+12/18/97 (bug fix) In the opt argument parsing package: if the description
 had only flags, the "too many arguments" case was not detected. The default
 value was not used for the special "args" ending argument. (DL)
 
@@ -3849,11 +3849,11 @@ procs now in auto.tcl and package.tcl can be autoloaded if needed. (DL)
 1/7/98 (enhancement) tcltest made at install time will search for it's
 init.tcl where it is, even when using virtual path compilation. (DL)
 
-1/8/98 (os bug workaround) when needed, using a replacement for memcmp so 
+1/8/98 (os bug workaround) when needed, using a replacement for memcmp so
 string compare "char with high bit set" "char w/o high bit set" returns
 the expected value on all platforms. (DL)
 
-1/8/98 (unix portability/configure) building from .../unix/targetName/ 
+1/8/98 (unix portability/configure) building from .../unix/targetName/
 subdirectories and simply using "../configure" should now work fine. (DL)
 
 1/14/98 (enhancement) Added new regular expression package that
@@ -3885,7 +3885,7 @@ to generate direct loading package indexes (such those you need
 if you use namespaces and plan on using namespace import just after
 package require). pkg_mkIndex still has limitations regarding
 package dependencies but errors are now ignored and with -direct, correct
-package indexes can be generated even if there are dependencies as long 
+package indexes can be generated even if there are dependencies as long
 as the "package provide" are done early enough in the files. (DL)
 
 1/28/98 (enhancement) Performance tuning of regexp and regsub. (CCS)
@@ -3909,7 +3909,7 @@ continue to use the argv array after calling Tcl_OpenCommandChannel(). (CCS)
 2/1/98 (bug fix) More bugs with %Z in format string argument to strftime():
 1. Borland always returned empty string.
 2. MSVC always returned the timezone string for the current time, not the
-   timezone string for the specified time.  
+   timezone string for the specified time.
 3. With MSVC, "clock format 0 -format %Z -gmt 1" would return "GMT" the first
    time it was called, but would return the current timezone string on all
    subsequent calls. (CCS)
@@ -3931,7 +3931,7 @@ root directory was returning error. (CCS)
 determine the attributes for a file.  Previously it would return different
 error messages on Unix vs.  Windows vs. Mac. (CCS)
 
-2/4/98 (bug fixes) Fixed several instances of bugs where the parser/compiler 
+2/4/98 (bug fixes) Fixed several instances of bugs where the parser/compiler
 would reach outside the range of allocated memory. Improved the array
 lookup algorithm in set compilation. (DL)
 
@@ -3939,13 +3939,13 @@ lookup algorithm in set compilation. (DL)
 deprecated and ignored. The part1 is always parsed when the part2 argument
 is NULL. This is to avoid a pattern of errors for extension writers converting
 from string based Tcl_SetVar() to new Tcl_SetObjVar2() and who could easily
-forget to provide the flag and thus get code working for normal variables 
+forget to provide the flag and thus get code working for normal variables
 but not for array elements. The performance hit is minimal. A side effect
 of that change is that is is no longer possible to create scalar variables
-that can't be accessed by tcl scripts because of their invalid name 
-(ending with parenthesis). Likewise it is also parsed and checked to 
-ensure that you don't create array elements of array whose name is a valid 
-array element because they would not be accessible from scripts anyway. 
+that can't be accessed by tcl scripts because of their invalid name
+(ending with parenthesis). Likewise it is also parsed and checked to
+ensure that you don't create array elements of array whose name is a valid
+array element because they would not be accessible from scripts anyway.
 Note: There is still duplicate array elements parsing code. (DL)
 *** POTENTIAL INCOMPATIBILITY ***
 
@@ -3991,7 +3991,7 @@ registry call. (CCS)
 2/11/98 (enhancement) Eliminate the TCL_USE_TIMEZONE_VAR definition from
 configure.in, because it was the same information as the already existing
 HAVE_TM_ZONE definition.  The lack of HAVE_TM_ZONE is used to work around a
-Solaris and Windows bug where "clock format [clock sec] -format %Z -gmt 1" 
+Solaris and Windows bug where "clock format [clock sec] -format %Z -gmt 1"
 produces the local timezone string instead of "GMT". (CCS)
 
 2/11/98 (bug fix) Memleaks and dereferencing of uninitialized memory in
@@ -4349,7 +4349,7 @@ strings that are already null terminated.  [Bug: 1793] (stanton)
 
 5/3/99 (new feature) Applied Jeff Hobbs's string patch which includes
 the following changes:
-    - added new subcommands: equal, repeat, map, is, replace 
+    - added new subcommands: equal, repeat, map, is, replace
     - added -length option to "string compare|equal"
     - added -nocase option to "string compare|equal|match"
     - string and list indices can be an integer or end?-integer?.
@@ -4378,7 +4378,7 @@ improvements for many Tcl scripts.  [Bug: 1063] (stanton)
 encoding subfield from the LANG/LC_ALL environment variables in cases
 where the locale is not found in the built-in locale table.  It also
 attempts to initialize the locale subsystem so X11 is happy. [Bug: 1989]
-(stanton) 
+(stanton)
 
 5/14/99 (bug fix) Applied the patch to fix 100-year and 400-year
 boundaries in leap year code, from Isaac Hollander.  [Bug: 2066] (redman)
@@ -4466,7 +4466,7 @@ harness package.  Modified test files to use new tcltest package.
 
 6/26/99 (new feature) Applied patch from Peter Hardie to add poke
 command to dde and changed the dde package version number to
-1.1. (redman) 
+1.1. (redman)
 
 6/28/99 (bug fix) Applied patch from Peter Hardie to fix problem in
 Tcl_GetIndexFromObj() when the key being passed is the empty string.
@@ -4529,7 +4529,7 @@ notation for opening serial ports on Windows.  (redman)
 instead of the platform-specific "size_t", primarily after SunOS 4
 users could no longer compile. (redman)
 
-7/22/99 (bug fix) Fixed crashing during "array set a(b) {}". 
+7/22/99 (bug fix) Fixed crashing during "array set a(b) {}".
 [Bug: 2427] (redman)
 
 7/22/99 (bug fix) The install-sh script must be given execute
@@ -4564,7 +4564,7 @@ pack-old.n [Bug: 2469]. Patches from Don Porter. (redman)
 7/29/99 (bug fix) Allow tcl to open CON and NUL, even for redirection
 of std channels.  [Bug: 2393 2392 2209 2458] (redman)
 
-7/30/99 (bug fix) Applied fixed Trf patch from Andreas Kupries. 
+7/30/99 (bug fix) Applied fixed Trf patch from Andreas Kupries.
 [Bug: 2386] (hobbs)
 
 7/30/99 (bug fix) Fixed bug in info complete. [Bug: 2383 2466] (hobbs)
@@ -4574,7 +4574,7 @@ provided by James Dennett.  [Bug: 2450] (redman)
 
 7/30/99 (bug fix) Fixed launching of 16bit applications on Win9x from
 wish.  The command line was being primed with tclpip82.dll, but it was
-ignored later. 
+ignored later.
 
 7/30/99 (bug fix) Added functions to stub table, patch provided by Jan
 Nijtmans. [Bug: 2445] (hobbs)
@@ -4587,7 +4587,7 @@ thread's stack space. (redman)
 --------------- Released 8.2b2, August 5, 1999 ----------------------
 
 8/4/99 (bug fix) Applied patches supplied by Henry Spencer to greatly
-enhance performance of certain classes of regular expressions. 
+enhance performance of certain classes of regular expressions.
 [Bug: 2440 2447] (stanton)
 
 8/5/99 (doc change) Made it clear that tcl_pkgPath was not set for
@@ -4601,7 +4601,7 @@ terminated in tclLiteral.c. [Bug: 2496] (hobbs)
 8/9/99 (bug fix) Fixed test suite to handle larger integers
 (64bit). Patch from Don Porter. (hobbs)
 
-8/9/99 (documentation fix) Clarified Tcl_DecrRefCount docs 
+8/9/99 (documentation fix) Clarified Tcl_DecrRefCount docs
 [Bug: 1952]. Clarified array pattern docs [Bug: 1330]. Fixed clock docs
 [Bug: 693]. Fixed formatting errors [Bug: 2188 2189]. Fixed doc error
 in tclvars.n [Bug: 2042]. (hobbs)
@@ -4661,7 +4661,7 @@ and in testthread code.  No more known (reported) mem leaks for Tcl
 built using gcc on Solaris 2.5.1.  Also none reported for Tcl on NT
 (using Purify 6.0). (hobbs)
 
-10/30/99 (bug fix) fixed improper bytecode handling of 
+10/30/99 (bug fix) fixed improper bytecode handling of
 'eval {set array($unknownvar) 5}' (also for incr) (hobbs)
 
 10/30/99 (bug fix) fixed event/io threading problems by making
@@ -5115,7 +5115,7 @@ bits for Tcl_UniChar though) (hobbs)
 2001-05-30 (new feature)[TIP 15] Tcl_GetMathFuncInfo, Tcl_ListMathFuncs,
 Tcl_InfoObjCmd, InfoFunctionsCmd APIs (fellows)
 
-2001-06-08 (bug fix,feature enhancement)[219170,414936] all Tcl_Panic 
+2001-06-08 (bug fix,feature enhancement)[219170,414936] all Tcl_Panic
 definitions brought into agreement (porter)
 
 2001-06-12 (bug fix)[219232] regexp returned non-matching sub-pairs to have
@@ -5284,7 +5284,7 @@ compiles to 0 bytecodes (sofer)
 
 2001-09-13 (new feature) Old ChangeLog entries => ChangeLog.1999 (hobbs)
 
-2001-09-17 (new feature) compiling with TCL_COMPILE_DEBUG now required to 
+2001-09-17 (new feature) compiling with TCL_COMPILE_DEBUG now required to
 enable all compile and execution tracing (sofer)
         *** POTENTIAL INCOMPATIBILITY ***
 
@@ -5566,7 +5566,7 @@ options to configure (max)
 
 2002-07-30 (bug fix)[584603] WriteChars infinite loop non-UTF-8 string (kupries)
 
-2002-08-04 (new feature)[584051,580433,585105,582429][TIP 27] Tcl interfaces 
+2002-08-04 (new feature)[584051,580433,585105,582429][TIP 27] Tcl interfaces
 	are now fully CONST-ified.  Use the symbols USE_NON_CONST or
 	USE_COMPAT_CONST to select interfaces with fewer changes.
         *** POTENTIAL INCOMPATIBILITY ***
@@ -5576,7 +5576,7 @@ options to configure (max)
 	=> tcltest 2.2
 
 2002-08-07 (bug fix)[587488] mem leak with USE_THREAD_ALLOC (sofer,sass)
-	
+
 2002-08-07 (feature enhancement)[584794,584650,472576] boolean values
 	are no longer always re-parsed from string. (sofer)
 
@@ -5710,7 +5710,7 @@ packages in multiple interps.
 
 2003-02-01 (bug fix)[675356] [clock clicks {}]; [clock clicks -] - syntax errs
 
-2003-02-01 (bug fix)[656660] MT-safety for [clock format] 
+2003-02-01 (bug fix)[656660] MT-safety for [clock format]
 
 2003-02-03 (bug fix)[651271] command rename traces get fully-qualified names
         *** POTENTIAL INCOMPATIBILITY ***
@@ -5929,7 +5929,7 @@ various odd regexp "can't happen" bugs.
 
 2003-12-09 (platform support)[852369] update errno usage for recent glibc
 
-2003-12-12 (bug fix)[858937] fix for [file normalize ~nobody] 
+2003-12-12 (bug fix)[858937] fix for [file normalize ~nobody]
 
 2003-12-17 (bug fix)[839519] fixed two memory leaks (vasiljevic)
 
@@ -5944,7 +5944,7 @@ various odd regexp "can't happen" bugs.
 
 2004-02-12 (feature enhancement) update HP-11 build libs setup
 
-2004-02-17 (bug fix)[849514,859251] corrected [file normailze] of $link/.. 
+2004-02-17 (bug fix)[849514,859251] corrected [file normailze] of $link/..
 
 2004-02-17 (bug fix)[772288] Unix std channels forced to exist at startup.
 
@@ -6037,7 +6037,7 @@ in this changeset (new minor version) rather than bug fixes:
  * [TIP #139] documented portions of Tcl's namespace C APIs
 
  * [TIP #148] correct [list]-quoting of the '#' character
-     *** POTENTIAL INCOMPATIBILITY *** 
+     *** POTENTIAL INCOMPATIBILITY ***
    For scripts that assume a particular (buggy) string rep for lists.
 
  * [TIP #156] add "root locale" to msgcat
@@ -6532,7 +6532,7 @@ Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
 
 2005-07-22 (enhancement)[1237755] 8.4 features in script library (fradin,porter)
 
-2005-07-24 (new feature) configure macros SC_PROG_TCLSH, SC_BUILD_TCLSH (dejong) 
+2005-07-24 (new feature) configure macros SC_PROG_TCLSH, SC_BUILD_TCLSH (dejong)
 2005-07-26 (bug fix)[1047286] cmd delete traces during namespace delete (porter)
 
 2005-07-26 (new unix feature)[1231015] ${prefix}/share on ::tcl_pkgPath (dejong)
@@ -6627,7 +6627,7 @@ registered by [package ifneeded] provides the version it claims (lavana,porter)
 
 2005-11-09 (bug fix)[1350293,1350291] [after $negative $script] fixed (kenny)
 
-2005-11-12 (bug fix)[1352734,1354540,1355942,1355342] [namespace delete] 
+2005-11-12 (bug fix)[1352734,1354540,1355942,1355342] [namespace delete]
 issues with [namespace path] and command delete traces (sofer,fellows)
 
 2005-11-18 (bug fix)[1358369] URL parsing standards compliance (wu,fellows)
@@ -6756,7 +6756,7 @@ naked-fork safe on Tiger (steffen)
 2006-06-20 (internal change) Dropped the internal routines used to hook into
 filesystem operations back in the pre-Tcl_Filesystem days. (porter)
 ***POTENTIAL INCOMPATIBILITY***
-For extensions and programs that have never migrated to the supported Tcl 8.4 
+For extensions and programs that have never migrated to the supported Tcl 8.4
 interface for virtual filesystems
 
 2006-07-05 (enhancement) Expression parser rewrite avoids stack overflow,
@@ -7603,7 +7603,7 @@ avoid otherwise very tricky multi-thread finalization bugs. (staplin,ferrieux)
 
 2009-10-04 (bug fix)[2569449] Core Foundation memory bug in Tiger (steffen)
 
-2009-10-06 (bug fix) repair intrep loss in slave interp evaluations 
+2009-10-06 (bug fix) repair intrep loss in slave interp evaluations
 introduced by first versions of the NRE conversion (nadkarni,porter)
 
 2009-10-06 (bug fix)[1941434] broken tclTomMath.h includes (porter)
@@ -8108,7 +8108,7 @@ and Tcl_FSMountsChanged(). (porter)
 
 2012-08-25 (bug fix)[3561330] Ukranian translation of "March" (teterin)
 
-2012-09-12 (TIP 404) New msgcat commands [mcflset], [mcflmset] (oehlmann)
+2012-09-07 (TIP 404) New msgcat commands [mcflset], [mcflmset] (oehlmann)
 => msgcat 1.5.0
 
 Many revisions to better support a Cygwin environment (nijtmans)
@@ -8117,4 +8117,416 @@ Dropped support for OS X versions less than 10.4 (Tiger) (fellows)
 
 --- Released 8.6b3, September 18, 2012 --- See ChangeLog for details ---
 
-2012-09-19 (feature proposal) msgcat dynamic locale change (oehlmann)
+2012-09-19 (tip412) msgcat dynamic locale change (oehlmann)
+
+2012-09-20 (enhancement) full Unicode support (nijtmans)
+=> dde 1.4.0
+
+2012-09-20 (enhancement) update bundled zlib to 1.2.7 (nijtmans)
+
+2012-10-03 (bug fix) exit panic on stacked std channel (griffin,porter)
+
+2012-10-14 (bug fix) [tcl::Bgerror] crash on non-dict options (nijtmans)
+
+2012-10-16 (TIP 400) New [zlib] options to set compression dict (fellows)
+
+2012-10-16 (TIP 405) New commands [lmap] and [dict map] (fellows)
+
+2012-10-24 (enhancement) [dict unset] now bytecompiled (fellows)
+
+2012-11-05 (TIP 413) Revisions to default [string trim*] trimset (nijtmans)
+	*** POTENTIAL INCOMPATIBILITY ***
+
+2012-11-05 (enhancement) Now bytecompiled: [array exists], [array set],
+[array unset], [dict create], [dict exists], [dict merge], [format],
+[info commands], [info coroutine], [info level], [info object],
+[namespace current], [namespace code], [namespace qualifiers], [namespace tail],
+[namespace which], [regsub], [self], [string first], [string last],
+[string map], [string range], [tailcall], [yield]. (fellows)
+
+2012-11-06 (bug fix)[3581754] avoid multiple callback on keep-alive (fellows)
+=> http 2.8.5
+
+2012-11-07 tzdata updated to Olson's tzdata2012i (kenny)
+
+2012-11-13 (bug fix)[3567063] thread fp settings from master (mistachkin)
+
+2012-11-14 (bug fix)[2933003] tempfile creation in $TMPDIR (fellows)
+
+2012-11-15 (TIP 416) New [load] options -global and -lazy (nijtmans)
+
+2012-11-20 (bug fix)[3033307] base64 trail whitespace (kovalenko,goth)
+
+2012-12-03 (bug fix) [configure] query broke init from argv (porter)
+=> tcltest 2.3.5
+
+2012-12-13 (bug fix)[3595576] crash: [catch {} -> noSuchNs::var] (sofer,porter)
+
+2012-12-13 (bug fix) crash: [zlib gunzip $data -header noSuchNs::var] (porter)
+
+--- Released 8.6.0, December 20, 2012 --- See ChangeLog for details ---
+
+2012-12-22 (bug fix)[3598150] DString to Tcl_Obj memleak (afredd)
+
+2012-12-27 (bug fix)[3598580] Tcl_ListObjReplace() refcount fix (nijtmans)
+
+2013-01-04 (bug fix) memleak in [format] compiler (fellows)
+
+2013-01-08 (bug fix)[3092089,3587096] [file normalize] on junction points
+
+2013-01-09 (bug fix)[3599395] status line processing (nijtmans)
+2013-01-23 (bug fix)[2911139] repair async connection management (fellows)
+=> http 2.8.6
+
+2013-01-26 (bug fix)[3601804] Darwin segfault platformCPUID (nijtmans)
+
+2013-01-28 (enhancement) improve ensemble bytecode (fellows)
+
+2013-01-30 (enhancement) selected script code improvements (fradin)
+=> tcltest 2.3.6
+
+2013-01-30 (bug fix)[3599098] update to handle glibc banner changes (kupries)
+=> platform 1.0.11
+
+2013-01-31 (bug fix)[3598282] make install DESTDIR support (cassoff)
+
+2013-02-05 (bug fix)[3603434] [file normalize a:/] flaw in VFS (porter,griffin)
+
+2013-02-09 (bug fix)[3603695] $obj varname resolution rules (venable,fellows)
+
+2013-02-11 (bug fix)[3603553] zlib flushing errors (vampiera,fellows)
+
+2013-02-14 (bug fix)[3604576] msgcat use of Windows registry (oehlmann,nijtmans)
+=> msgcat 1.5.1
+
+2013-02-19 (bug fix)[2438181] report errors in trace handlers (yorick)
+
+2013-02-21 (bug fix)[3605447] unbreak [namespace export -clear] (porter)
+
+2013-02-23 (bug fix)[3599194] fallback IPv6 routines (afredd,max)
+
+2013-02-27 (bug fix)[3606139] stop crash in [regexp] (lane)
+
+2013-03-03 (bug fix)[3606258] major serial port update (english)
+
+2013-03-06 (bug fix)[3606683] [regexp (((((a)*)*)*)*)* {}] hangs
+(grathwohl,lane,porter)
+
+2013-03-12 (enhancement) better build support for Debian arch (shadura)
+
+2013-03-19 (bug fix)[2893771] [file stat] on locked files (thoyts,nijtmans)
+
+2013-03-21 (bug fix)[2102614] [auto_mkindex] ensemble support (griffin)
+
+2013-03-27 Tcl_Zlib*() routines tolerate NULL interps (porter
+
+2013-04-04 (bug fix) Support URLs with query but no path (max)
+=> http 2.8.7
+
+2013-04-08 (bug fix)[3610026] regexp crash on color overflow (linnakangas)
+
+2013-04-29 (enhancement) [array set] compile improvement (fellows)
+
+2013-04-30 (enhancement) broaden glibc version detection (kupries)
+=> platform 1.0.12
+
+2013-05-06 (platform support) Cygwin64 (nijtmans)
+
+2013-05-15 (enhancement) Improved [list {*}...] compile (fellows)
+
+2013-05-16 (platform support) mingw-4.0 (nijtmans)
+
+2013-05-19 (platform support) FreeBSD updates (cerutti)
+
+2013-05-20 (bug fix)[3613567] access error temp file creation (keene)
+
+2013-05-20 (bug fix)[3613569] temp file open fail can crash [load] (keene)
+
+2013-05-22 (bug fix)[3613609] [lsort -nocase] failed on non-ASCII (fellows)
+
+2013-05-28 (bug fix)[3036566] Use language packs (Vista+) locale (oehlmann)
+=> msgcat 1.5.2
+
+2013-05-29 (bug fix)[3614102] [apply {{} {list [if 1]}}] stack woes (porter)
+
+2013-06-03 Restored lost performance appending to long strings (elby,porter)
+
+2013-06-05 (bug fix)[2835313] [while 1 {foo [continue]}] crash (fellows)
+
+2013-06-17 (bug fix)[a876646] [:cntrl:] includes \x00 to \x1f (nijtmans)
+
+2013-06-27 (bug fix)[983509] missing encodings for config values (nijtmans)
+
+2013-06-27 (bug fix)[34538b] apply DST in 2099 (lang)
+
+2013-07-02 (bug fix)[32afa6] corrected dirent64 check (griffin)
+
+2013-07-06 tzdata updated to Olson's tzdata2013d (kenny)
+
+2013-07-10 (bug fix)[86fb5e] [info frame] in compiled ensembles (porter)
+
+2013-07-18 (bug fix)[1c17fb] revisd syntax errorinfo that shows error (porter)
+
+2013-07-26 (bug fix)[6585b2] regexp {(\w).*?\1} abb (lane)
+
+2013-07-29 [string is space \u202f] => 1 (nijtmans)
+
+2013-08-01 [a0bc85] Limited support for fork with threads (for Rivet) (nijtmans)
+
+2013-08-01 (bug fix)[1905562] RE recursion limit increased to support
+reported usage of large expressions (porter)
+
+2013-08-02 (bug fix)[9d6162] superclass slot empty crash (vdgoot,fellows)
+
+2013-08-03 (enhancement)[3611643] [auto_mkindex] support TclOO (fellows)
+
+2013-08-14 (bug fix)[a16752] Missing command delete callbacks (porter)
+
+2013-08-15 (bug fix)[3610404] reresolve traced forwards (porter)
+
+2013-08-15 Errors from execution traces become errors of the command (porter)
+
+2013-08-23 (bug fix)[8ff0cb9] Tcl_NR*Eval*() schedule only, as doc'd (porter)
+
+2013-08-29 (bug fix)[2486550] enable [interp invokehidden {} yield] (porter)
+
+2013-09-01 (bug fix)[b98fa55] [binary decode] fail on whitespace (reche,fellows)
+
+2013-09-07 (bug fix)[86ceb4] have tm path favor first provider (neumann,porter)
+
+2013-09-09 (bug fix)[3609693] copied object member variable confusion (fellows)
+=> TclOO 1.0.1
+
+2013-09-17 (bug fix)[2152292] [binary encode uuencode] corrected (fellows)
+
+2013-09-19 (bug fix)[3487626] segfaults in [dict] compilers (porter)
+
+2013-09-19 (bug fix)[31661d2] mem leak in [lreplace] (ade,porter)
+
+Many optmizations, improvements, and tightened stack management in bytecode.
+
+--- Released 8.6.1, September 20, 2013 --- http://core.tcl.tk/tcl/ for details
+
+2013-09-27 (enhancement) improved ::env synchronization (fellows)
+
+2013-10-20 (bug fix)[2835313] segfault from
+[apply {{} {while 1 {a {*}[return -level 0 -code continue]}}}] (fellows)
+
+2013-10-22 (bug fix)[3556215] [scan %E%G%X] support (fellows)
+
+2013-10-25 (bug fix)[3eb2ec1] upper case scheme names in url. (nijtmans)
+=> http 2.8.8
+
+2013-10-29 (bug fix)[414d103] HP-UX: restore [exec] in threaded Tcl (nijtmans)
+
+2013-11-04 (bug fix) C++ friendly stubs struct declarations (nijtmans)
+
+2013-11-05 (bug fix)[426679e] OpenBSD man page rendering (nijtmans)
+
+2013-11-12 (bug fix)[5425f2c] [fconfigure -error] breaks [socket -async]
+
+2013-11-20 (bug fix) Improved environment variable management (nijtmans)
+=> tcltest 2.3.7
+
+2013-11-21 (platforms) Support for Windows 8.1 (nijtmans)
+
+2013-12-06 (RFE) improved [foreach] bytecode (fellows)
+
+2013-12-10 (RFE) improved [lmap] bytecode (sofer)
+
+2013-12-11 (RFE) improved [catch] bytecode (sofer)
+
+2013-12-18 (bug fix)[0b874c3] SEGV [coroutine X coroutine Y info frame] (porter)
+
+2013-12-20 (RFE) reduced numeric conversion in bytecode (sofer)
+
+2014-01-07 (RFE) compilers for  [concat], [linsert], [namespace origin],
+[next], [string replace], [string tolower], [string totitle], [string toupper],
+[string trim], [string trimleft], [string trimright] (fellows)
+
+2014-01-22 (RFE) compilers for [nextto], [yieldto] (fellows)
+
+2014-02-02 (RFE) compiler for [string is] (fellows)
+
+2014-02-06 (bug fix)[a4494e2] panic in test namespace-13.2 (porter)
+
+2014-03-20 (bug fix)[2f7cbd0] FreeBSD 10.0 build failure (nijtmans)
+
+2014-03-26 (RFE)[b42b208] Cygwin: [file attr -readonly -archive -hidden -system]
+(nijtmans)
+
+2014-03-27 (bug fix) segfault iocmd-23.11 (porter)
+
+2014-04-02 (bug fix)[581937a] Win: readable event on async connect failure
+
+2014-04-04 (bug fix)[581937a,97069ea] async socket connect fail (oehlmann)
+
+2014-04-10 (bug fix)[792641f] Win: no \ in normalized path (nijtmans)
+
+2014-04-11 (bug fix)[3118489] protect NUL in filenames (nijtmans)
+
+2014-04-15 (bug fix)[88aef05] segfault iocmd-21.20 (porter)
+
+2014-04-16 (update) Win: use Winsock 2.2 (nijtmans)
+
+2014-04-16 (bug fix)[d19a30d] segfault clock-67.[23] (sebres)
+
+2014-04-21 (bug fix) segfault iocmd-21.2[12] (porter)
+
+2014-04-22 (bug fix) segfault iogt-2.4 (porter)
+
+2014-04-23 (bug fix)[3493120] memleak in thread exit
+
+2014-05-08 refactoring of core I/O functions (porter)
+
+2014-05-09 (bug fix)[3389978] Win: extended paths support (nijtmans)
+
+2014-05-09 (bug fix) segfault iocmd-32.1 (porter)
+
+2014-05-11 (bug fix)[6d2f249] nested ensemble compile failure (fellows)
+
+2014-05-17 (RFE)[47d6625] wideint support in [lsearch -integer] [lsort -integer] (nijtmans)
+	*** POTENTIAL INCOMPATIBILITY ***
+
+2014-05-20 (bug fix) Stop eof and blocked state leaking thru stacks (porter)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2014-05-20 (bug fix)[13d3af3] Win: socket -async tried only first IP address
+
+2014-05-28 (platforms) work around systems that fail when a shared library
+is deleted after it is [load]ed (kupries)
+
+2014-05-31 (bug fix) chan events on pipes must be on proper ends (porter)
+
+2014-06-04 (bug fix) socket-2.12 (porter)
+
+2014-06-05 (bug fix) io-12.6 (kupries,porter)
+
+2014-06-15 (RFE)[1b0266d] [dict replace|remove] return canonical dict (fellows)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2014-06-16 (bug fix) socket-2.13 workaround broken select() (porter)
+
+2014-06-20 (bug fix)[b47b176] iortrans.tf-11.0 (porter)
+
+2014-06-22 (RFE)[2f9df4c] -cleanup scripts before -out compare (nijtmans)
+
+2014-07-04 (update) Update Unicode data to 7.0 (nijtmans)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2014-07-08 (bug) [chan push] converts blocked writes to error (aspect,porter)
+
+2014-07-10 (bug fix)[7368d2] memleak Tcl_SetVar2(..,TCL_APPEND_VALUE) (porter)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2014-07-11 (bug) leaks in SetFsPathFromAny, [info frame] (porter)
+
+2014-07-15 (bug) compress dict leak in zlib xform channel close (porter)
+
+2014-07-17 (bug fix)[9969cf8] leak trace data in coroutine deletion (porter)
+
+2014-07-18 (RFE)[b43f2b4] fix [lappend] multi performance collapse (fellows)
+
+2014-07-19 (bug fix)[75b8433] memleak managing oo instance lists (porter)
+
+2014-07-21 (bug fix)[e6477e1] memleak in AtForkChild() (porter)
+
+2014-07-22 (bug fix)[12b0997] memleak in iocmd.tf-32.0 (porter)
+
+2014-07-28 (RFE) Optimized binary [chan copy] by moving buffers (porter)
+
+2014-07-30 (enhancement) use refcounts, not Tcl_Preserve to manage lifetime
+of Tcl_Channel  (porter)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2014-07-31 (bug fix)[a84a720] double free in oo chain deletion (porter)
+
+2014-08-01 (bug fix)[e75faba] SEGV [apply {{} {namespace upvar a b [x]}}] (porter)
+
+2014-08-01 (update) "macosx*-i386-x86_64" "macosx-universal" no longer compatible (kupries)
+=> platform 1.0.13
+
+2014-08-12 tzdata updated to Olson's tzdata2014f (kenny)
+
+2014-08-17 (bug fix)[7d52e11] [info class subclasses oo::object] should
+include ::oo::class (fellows)
+
+2014-08-25 (TIP 429) New command [string cat] (leitgeb,ferrieux)
+
+--- Released 8.6.2, August 27, 2014 --- http://core.tcl.tk/tcl/ for details
+
+2014-08-28 (bug)[b9e1a3] Correct Method Search Order (nadkarni,fellows)
+=> TclOO 1.0.3
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2014-09-05 (bug)[ccc2c2] Regression [lreplace {} 1 1] (bron,fellows)
+
+2014-09-08 (bug)<oo-1.18.2> Crash regression in [oo::class destroy] (porter)
+
+2014-09-09 (bug)[84af11] Regress [regsub -all {\(.*} a(b) {}] (fellows)
+
+2014-09-10 (bug)[cee90e] [try {} on ok {} - on return {} {}] panic (porter)
+
+2014-09-20 (feature) [tcl::unsupported::getbytecode] disassember (fellows)
+
+2014-09-27 (enhancement) [string cat] bytecode optimization (leitgeb,ferrieux)
+
+2014-09-27 (bug)[82521b] segfault in mangled bytecode (ogilvie,sofer)
+
+2014-10-02 (bug)[bc5b79] Hang in some [read]s of limited size (rogers,porter)
+
+2014-10-03 (bug)[bc1a96] segfault in [array set] of traced array (tab,porter)
+
+2014-10-08 (bug)[59a2e7] MSVC14 compile support (dower,nijtmans)
+
+2014-10-10 (bug)[ed29c4] [fcopy] treats [blocked] as error (rowen,porter)
+
+2014-10-10 (bug)[bf7135] regression in Tcl_Write() interface (porter)
+
+2014-10-18 (bug)[10dc6d] fix [gets] on non-blocking channels (fassel,porter)
+
+2014-10-26 Support for Windows 10 (nijtmans)
+
+2014-10-31 (bug)[dcc034] restore [open comX: r+] (lll,nijtmans)
+
+2014-11-05 (bug)[214cc0] Restore [lappend v] return value (sayers,porter)
+
+2014-11-06 (bug)[5adc35] Stop forcing EOF to be permanent (porter)
+
+--- Released 8.6.3, November 12, 2014 --- http://core.tcl.tk/tcl/ for details
+
+2014-11-21 (bug)[743338] Win: socket error encoding (ladayaroslav,nijtmans)
+
+2014-12-01 (bug) restore tbcload/tclcompiler support (kupries)
+
+2014-12-03 (bug)[0c043a] Fix compiled [set var($) val] (porter)
+
+2014-12-04 (bug)[d2ffcc] Limit $... and bareword parsing to ASCII (ladayaroslav,porter)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2014-12-06 (bug)[c6cd4a] Win: hang in async socket connection (shults,nadkarni)
+
+2014-12-10 tzdata updated to Olson's tzdata2014j (venkat)
+
+2014-12-13 fix header files installation on OS X (houben)
+
+2014-12-17 (TIP 427) [fconfigure $h -connecting, -peername, -sockname] (oehlmann,rmax)
+
+2014-12-18 (bug)[af08c8] Crash in full finalize encoding teardown (porter)
+
+2014-12-18 (bug)[7c187a] [chan copy] crash (io-53.17) (benno,porter)
+
+2015-01-26 (bug)[df0848] Trouble with INFINITY macro (dower,nijtmans)
+
+2015-01-29 (bug) Stop crashes when extension var resolvers misbehave (porter)
+
+2015-01-29 (bug)[088727] [read] past EOF (io-73.4) (fenugrec,porter)
+
+2015-02-11 tzdata updated to Olson's tzdata2015a (venkat)
+
+2015-02-20 (bug)[32b615] Fix compiled [lreplace] (lreplace-4.[345]) (aspect)
+
+2015-03-10 (enhancement) Revise OS X notifier for better Cocoa (walzer)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+--- Released 8.6.4, March 12, 2015 --- http://core.tcl.tk/tcl/ for details
diff --git a/compat/dirent2.h b/compat/dirent2.h
index 878457f..5be08ba 100644
--- a/compat/dirent2.h
+++ b/compat/dirent2.h
@@ -14,8 +14,6 @@
 #ifndef _DIRENT
 #define _DIRENT
 
-#include "tcl.h"
-
 /*
  * Dirent structure, which holds information about a single
  * directory entry.
diff --git a/compat/dlfcn.h b/compat/dlfcn.h
index 6940c2a..fb27ea0 100644
--- a/compat/dlfcn.h
+++ b/compat/dlfcn.h
@@ -26,8 +26,6 @@
 #ifndef __dlfcn_h__
 #define __dlfcn_h__
 
-#include "tcl.h"
-
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/compat/fake-rfc2553.c b/compat/fake-rfc2553.c
index 666144f..3b91041 100644
--- a/compat/fake-rfc2553.c
+++ b/compat/fake-rfc2553.c
@@ -84,7 +84,7 @@ int fake_getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
 
 	if (host != NULL) {
 		if (flags & NI_NUMERICHOST) {
-			int len;
+			size_t len;
 			Tcl_MutexLock(&netdbMutex);
 			len = strlcpy(host, inet_ntoa(sin->sin_addr), hostlen);
 			Tcl_MutexUnlock(&netdbMutex);
@@ -135,7 +135,7 @@ fake_gai_strerror(int err)
 
 #ifndef HAVE_FREEADDRINFO
 void
-freeaddrinfo(struct addrinfo *ai)
+fake_freeaddrinfo(struct addrinfo *ai)
 {
 	struct addrinfo *next;
 
@@ -199,7 +199,7 @@ fake_getaddrinfo(const char *hostname, const char *servname,
 
 		port = strtol(servname, &cp, 10);
 		if (port > 0 && port <= 65535 && *cp == '\0')
-			port = htons(port);
+			port = htons((unsigned short)port);
 		else if ((sp = getservbyname(servname, NULL)) != NULL)
 			port = sp->s_port;
 		else
diff --git a/compat/limits.h b/compat/limits.h
deleted file mode 100644
index 2cb082b..0000000
--- a/compat/limits.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * limits.h --
- *
- *	This is a dummy header file to #include in Tcl when there
- *	is no limits.h in /usr/include.  There are only a few
- *	definitions here;  also see tclPort.h, which already
- *	#defines some of the things here if they're not arleady
- *	defined.
- *
- * Copyright (c) 1991 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#define LONG_MIN		0x80000000
-#define LONG_MAX		0x7fffffff
-#define INT_MIN			0x80000000
-#define INT_MAX			0x7fffffff
-#define SHRT_MIN		0x8000
-#define SHRT_MAX		0x7fff
diff --git a/compat/string.h b/compat/string.h
index 84ee094..42be10c 100644
--- a/compat/string.h
+++ b/compat/string.h
@@ -13,8 +13,6 @@
 #ifndef _STRING
 #define _STRING
 
-#include "tcl.h"
-
 /*
  * The following #include is needed to define size_t. (This used to include
  * sys/stdtypes.h but that doesn't exist on older versions of SunOS, e.g.
diff --git a/compat/unistd.h b/compat/unistd.h
index 6779e74..2de5bd0 100644
--- a/compat/unistd.h
+++ b/compat/unistd.h
@@ -14,7 +14,6 @@
 #ifndef _UNISTD
 #define _UNISTD
 
-#include "tcl.h"
 #include <sys/types.h>
 
 #ifndef NULL
diff --git a/compat/zlib/CMakeLists.txt b/compat/zlib/CMakeLists.txt
index 7ee3bc4..0c0247c 100644
--- a/compat/zlib/CMakeLists.txt
+++ b/compat/zlib/CMakeLists.txt
@@ -3,7 +3,10 @@ set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
 
 project(zlib C)
 
-set(VERSION "1.2.7")
+set(VERSION "1.2.8")
+
+option(ASM686 "Enable building i686 assembly implementation")
+option(AMD64 "Enable building amd64 assembly implementation")
 
 set(INSTALL_BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation directory for executables")
 set(INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation directory for libraries")
@@ -121,11 +124,44 @@ set(ZLIB_SRCS
 )
 
 if(NOT MINGW)
-    set(ZLIB_SRCS ${ZLIB_SRCS}
+    set(ZLIB_DLL_SRCS
         win32/zlib1.rc # If present will override custom build rule below.
     )
 endif()
 
+if(CMAKE_COMPILER_IS_GNUCC)
+    if(ASM686)
+        set(ZLIB_ASMS contrib/asm686/match.S)
+    elseif (AMD64)
+        set(ZLIB_ASMS contrib/amd64/amd64-match.S)
+    endif ()
+
+	if(ZLIB_ASMS)
+		add_definitions(-DASMV)
+		set_source_files_properties(${ZLIB_ASMS} PROPERTIES LANGUAGE C COMPILE_FLAGS -DNO_UNDERLINE)
+	endif()
+endif()
+
+if(MSVC)
+    if(ASM686)
+		ENABLE_LANGUAGE(ASM_MASM)
+        set(ZLIB_ASMS
+			contrib/masmx86/inffas32.asm
+			contrib/masmx86/match686.asm
+		)
+    elseif (AMD64)
+		ENABLE_LANGUAGE(ASM_MASM)
+        set(ZLIB_ASMS
+			contrib/masmx64/gvmat64.asm
+			contrib/masmx64/inffasx64.asm
+		)
+    endif()
+
+	if(ZLIB_ASMS)
+		add_definitions(-DASMV -DASMINF)
+	endif()
+endif()
+
 # parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
 file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
 string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
@@ -134,7 +170,7 @@ string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
 if(MINGW)
     # This gets us DLL resource information when compiling on MinGW.
     if(NOT CMAKE_RC_COMPILER)
-        SET(CMAKE_RC_COMPILER windres.exe)
+        set(CMAKE_RC_COMPILER windres.exe)
     endif()
 
     add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
@@ -144,11 +180,11 @@ if(MINGW)
                             -I ${CMAKE_CURRENT_BINARY_DIR}
                             -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
                             -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc)
-    set(ZLIB_SRCS ${ZLIB_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
+    set(ZLIB_DLL_SRCS ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
 endif(MINGW)
 
-add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
-add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
+add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
+add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
 set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
 set_target_properties(zlib PROPERTIES SOVERSION 1)
 
@@ -166,7 +202,9 @@ endif()
 if(UNIX)
     # On unix-like platforms the library is almost always called libz
    set_target_properties(zlib zlibstatic PROPERTIES OUTPUT_NAME z)
-   set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,${CMAKE_CURRENT_SOURCE_DIR}/zlib.map")
+   if(NOT APPLE)
+     set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,\"${CMAKE_CURRENT_SOURCE_DIR}/zlib.map\"")
+   endif()
 elseif(BUILD_SHARED_LIBS AND WIN32)
     # Creates zlib1.dll when building shared library version
     set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
diff --git a/compat/zlib/ChangeLog b/compat/zlib/ChangeLog
index c2c643a..f22aaba 100644
--- a/compat/zlib/ChangeLog
+++ b/compat/zlib/ChangeLog
@@ -1,6 +1,69 @@
 
                 ChangeLog file for zlib
 
+Changes in 1.2.8 (28 Apr 2013)
+- Update contrib/minizip/iowin32.c for Windows RT [Vollant]
+- Do not force Z_CONST for C++
+- Clean up contrib/vstudio [Ro§]
+- Correct spelling error in zlib.h
+- Fix mixed line endings in contrib/vstudio
+
+Changes in 1.2.7.3 (13 Apr 2013)
+- Fix version numbers and DLL names in contrib/vstudio/*/zlib.rc
+
+Changes in 1.2.7.2 (13 Apr 2013)
+- Change check for a four-byte type back to hexadecimal
+- Fix typo in win32/Makefile.msc
+- Add casts in gzwrite.c for pointer differences
+
+Changes in 1.2.7.1 (24 Mar 2013)
+- Replace use of unsafe string functions with snprintf if available
+- Avoid including stddef.h on Windows for Z_SOLO compile [Niessink]
+- Fix gzgetc undefine when Z_PREFIX set [Turk]
+- Eliminate use of mktemp in Makefile (not always available)
+- Fix bug in 'F' mode for gzopen()
+- Add inflateGetDictionary() function
+- Correct comment in deflate.h
+- Use _snprintf for snprintf in Microsoft C
+- On Darwin, only use /usr/bin/libtool if libtool is not Apple
+- Delete "--version" file if created by "ar --version" [Richard G.]
+- Fix configure check for veracity of compiler error return codes
+- Fix CMake compilation of static lib for MSVC2010 x64
+- Remove unused variable in infback9.c
+- Fix argument checks in gzlog_compress() and gzlog_write()
+- Clean up the usage of z_const and respect const usage within zlib
+- Clean up examples/gzlog.[ch] comparisons of different types
+- Avoid shift equal to bits in type (caused endless loop)
+- Fix unintialized value bug in gzputc() introduced by const patches
+- Fix memory allocation error in examples/zran.c [Nor]
+- Fix bug where gzopen(), gzclose() would write an empty file
+- Fix bug in gzclose() when gzwrite() runs out of memory
+- Check for input buffer malloc failure in examples/gzappend.c
+- Add note to contrib/blast to use binary mode in stdio
+- Fix comparisons of differently signed integers in contrib/blast
+- Check for invalid code length codes in contrib/puff
+- Fix serious but very rare decompression bug in inftrees.c
+- Update inflateBack() comments, since inflate() can be faster
+- Use underscored I/O function names for WINAPI_FAMILY
+- Add _tr_flush_bits to the external symbols prefixed by --zprefix
+- Add contrib/vstudio/vc10 pre-build step for static only
+- Quote --version-script argument in CMakeLists.txt
+- Don't specify --version-script on Apple platforms in CMakeLists.txt
+- Fix casting error in contrib/testzlib/testzlib.c
+- Fix types in contrib/minizip to match result of get_crc_table()
+- Simplify contrib/vstudio/vc10 with 'd' suffix
+- Add TOP support to win32/Makefile.msc
+- Suport i686 and amd64 assembler builds in CMakeLists.txt
+- Fix typos in the use of _LARGEFILE64_SOURCE in zconf.h
+- Add vc11 and vc12 build files to contrib/vstudio
+- Add gzvprintf() as an undocumented function in zlib
+- Fix configure for Sun shell
+- Remove runtime check in configure for four-byte integer type
+- Add casts and consts to ease user conversion to C++
+- Add man pages for minizip and miniunzip
+- In Makefile uninstall, don't rm if preceding cd fails
+- Do not return Z_BUF_ERROR if deflateParam() has nothing to write
+
 Changes in 1.2.7 (2 May 2012)
 - Replace use of memmove() with a simple copy for portability
 - Test for existence of strerror
diff --git a/compat/zlib/Makefile.in b/compat/zlib/Makefile.in
index 241deed..c61aa30 100644
--- a/compat/zlib/Makefile.in
+++ b/compat/zlib/Makefile.in
@@ -1,5 +1,5 @@
 # Makefile for zlib
-# Copyright (C) 1995-2011 Jean-loup Gailly.
+# Copyright (C) 1995-2013 Jean-loup Gailly, Mark Adler
 # For conditions of distribution and use, see copyright notice in zlib.h
 
 # To compile and test, type:
@@ -32,7 +32,7 @@ CPP=$(CC) -E
 
 STATICLIB=libz.a
 SHAREDLIB=libz.so
-SHAREDLIBV=libz.so.1.2.7
+SHAREDLIBV=libz.so.1.2.8
 SHAREDLIBM=libz.so.1
 LIBS=$(STATICLIB) $(SHAREDLIBV)
 
@@ -83,7 +83,7 @@ check: test
 test: all teststatic testshared
 
 teststatic: static
-	@TMPST=`mktemp fooXXXXXX`; \
+	@TMPST=tmpst_$$; \
 	if echo hello world | ./minigzip | ./minigzip -d && ./example $$TMPST ; then \
 	  echo '		*** zlib test OK ***'; \
 	else \
@@ -96,7 +96,7 @@ testshared: shared
 	LD_LIBRARYN32_PATH=`pwd`:$(LD_LIBRARYN32_PATH) ; export LD_LIBRARYN32_PATH; \
 	DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \
 	SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \
-	TMPSH=`mktemp fooXXXXXX`; \
+	TMPSH=tmpsh_$$; \
 	if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh $$TMPSH; then \
 	  echo '		*** zlib shared test OK ***'; \
 	else \
@@ -105,7 +105,7 @@ testshared: shared
 	rm -f $$TMPSH
 
 test64: all64
-	@TMP64=`mktemp fooXXXXXX`; \
+	@TMP64=tmp64_$$; \
 	if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64 $$TMP64; then \
 	  echo '		*** zlib 64-bit test OK ***'; \
 	else \
@@ -216,13 +216,13 @@ install: install-libs
 	chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
 
 uninstall:
-	cd $(DESTDIR)$(includedir); rm -f zlib.h zconf.h
-	cd $(DESTDIR)$(libdir); rm -f libz.a; \
+	cd $(DESTDIR)$(includedir) && rm -f zlib.h zconf.h
+	cd $(DESTDIR)$(libdir) && rm -f libz.a; \
 	if test -n "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
 	  rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
 	fi
-	cd $(DESTDIR)$(man3dir); rm -f zlib.3
-	cd $(DESTDIR)$(pkgconfigdir); rm -f zlib.pc
+	cd $(DESTDIR)$(man3dir) && rm -f zlib.3
+	cd $(DESTDIR)$(pkgconfigdir) && rm -f zlib.pc
 
 docs: zlib.3.pdf
 
@@ -230,7 +230,7 @@ zlib.3.pdf: zlib.3
 	groff -mandoc -f H -T ps zlib.3 | ps2pdf - zlib.3.pdf
 
 zconf.h.cmakein: zconf.h.in
-	-@ TEMPFILE=`mktemp __XXXXXX`; \
+	-@ TEMPFILE=zconfh_$$; \
 	echo "/#define ZCONF_H/ a\\\\\n#cmakedefine Z_PREFIX\\\\\n#cmakedefine Z_HAVE_UNISTD_H\n" >> $$TEMPFILE &&\
 	sed -f $$TEMPFILE zconf.h.in > zconf.h.cmakein &&\
 	touch -r zconf.h.in zconf.h.cmakein &&\
diff --git a/compat/zlib/README b/compat/zlib/README
index 6f1255f..5ca9d12 100644
--- a/compat/zlib/README
+++ b/compat/zlib/README
@@ -1,6 +1,6 @@
 ZLIB DATA COMPRESSION LIBRARY
 
-zlib 1.2.7 is a general purpose data compression library.  All the code is
+zlib 1.2.8 is a general purpose data compression library.  All the code is
 thread safe.  The data format used by the zlib library is described by RFCs
 (Request for Comments) 1950 to 1952 in the files
 http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
@@ -31,7 +31,7 @@ Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan.  1997
 issue of Dr.  Dobb's Journal; a copy of the article is available at
 http://marknelson.us/1997/01/01/zlib-engine/ .
 
-The changes made in version 1.2.7 are documented in the file ChangeLog.
+The changes made in version 1.2.8 are documented in the file ChangeLog.
 
 Unsupported third party contributions are provided in directory contrib/ .
 
@@ -84,7 +84,7 @@ Acknowledgments:
 
 Copyright notice:
 
- (C) 1995-2012 Jean-loup Gailly and Mark Adler
+ (C) 1995-2013 Jean-loup Gailly and Mark Adler
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
diff --git a/compat/zlib/as400/bndsrc b/compat/zlib/as400/bndsrc
index 52cc661..98814fd 100644
--- a/compat/zlib/as400/bndsrc
+++ b/compat/zlib/as400/bndsrc
@@ -202,4 +202,14 @@ STRPGMEXP PGMLVL(*CURRENT) SIGNATURE('ZLIB')
 
   EXPORT SYMBOL("inflateResetKeep")
 
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.8 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+/********************************************************************/
+/*   *MODULE      INFLATE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("inflateGetDictionary")
+
 ENDPGMEXP
diff --git a/compat/zlib/as400/compile.clp b/compat/zlib/as400/compile.clp
index 8d0c58f..e3f47c6 100644
--- a/compat/zlib/as400/compile.clp
+++ b/compat/zlib/as400/compile.clp
@@ -105,6 +105,6 @@
                                  &MODLIB/TREES       &MODLIB/UNCOMPR     +
                                  &MODLIB/ZUTIL)                          +
                           SRCFILE(&SRCLIB/&CTLFILE) SRCMBR(BNDSRC)       +
-                          TEXT('ZLIB 1.2.7') TGTRLS(&TGTRLS)
+                          TEXT('ZLIB 1.2.8') TGTRLS(&TGTRLS)
 
              ENDPGM
diff --git a/compat/zlib/as400/readme.txt b/compat/zlib/as400/readme.txt
index 23cd1b8..7b5d93b 100644
--- a/compat/zlib/as400/readme.txt
+++ b/compat/zlib/as400/readme.txt
@@ -1,4 +1,4 @@
-        ZLIB version 1.2.7 for AS400 installation instructions
+        ZLIB version 1.2.8 for AS400 installation instructions
 
 I) From an AS400 *SAVF file:
 
diff --git a/compat/zlib/as400/zlib.inc b/compat/zlib/as400/zlib.inc
index 747c598..7341a6d 100644
--- a/compat/zlib/as400/zlib.inc
+++ b/compat/zlib/as400/zlib.inc
@@ -1,7 +1,7 @@
       *  ZLIB.INC - Interface to the general purpose compression library
       *
       *  ILE RPG400 version by Patrick Monnerat, DATASPHERE.
-      *  Version 1.2.7
+      *  Version 1.2.8
       *
       *
       *  WARNING:
@@ -22,12 +22,12 @@
       *
       *  Versioning information.
       *
-     D ZLIB_VERSION    C                   '1.2.7'
-     D ZLIB_VERNUM     C                   X'1270'
+     D ZLIB_VERSION    C                   '1.2.8'
+     D ZLIB_VERNUM     C                   X'1280'
      D ZLIB_VER_MAJOR  C                   1
      D ZLIB_VER_MINOR  C                   2
      D ZLIB_VER_REVISION...
-     D                 C                   7
+     D                 C                   8
      D ZLIB_VER_SUBREVISION...
      D                 C                   0
       *
@@ -359,6 +359,12 @@
      D  dictionary                65535    const options(*varsize)              Dictionary bytes
      D  dictLength                   10U 0 value                                Dictionary length
       *
+     D inflateGetDictionary...
+     D                 PR            10I 0 extproc('inflateGetDictionary')      Get dictionary
+     D  strm                               like(z_stream)                       Expansion stream
+     D  dictionary                65535    options(*varsize)                    Dictionary bytes
+     D  dictLength                   10U 0                                      Dictionary length
+      *
      D inflateSync     PR            10I 0 extproc('inflateSync')               Sync. expansion
      D  strm                               like(z_stream)                       Expansion stream
       *
diff --git a/compat/zlib/compress.c b/compat/zlib/compress.c
index ea4dfbe..6e97626 100644
--- a/compat/zlib/compress.c
+++ b/compat/zlib/compress.c
@@ -29,7 +29,7 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
     z_stream stream;
     int err;
 
-    stream.next_in = (Bytef*)source;
+    stream.next_in = (z_const Bytef *)source;
     stream.avail_in = (uInt)sourceLen;
 #ifdef MAXSEG_64K
     /* Check for source > 64K on 16-bit machine: */
diff --git a/compat/zlib/configure b/compat/zlib/configure
index 36c7d8e..b77a8a8 100755
--- a/compat/zlib/configure
+++ b/compat/zlib/configure
@@ -70,6 +70,7 @@ shared=1
 solo=0
 cover=0
 zprefix=0
+zconst=0
 build64=0
 gcc=0
 old_cc="$CC"
@@ -77,13 +78,26 @@ old_cflags="$CFLAGS"
 OBJC='$(OBJZ) $(OBJG)'
 PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
 
+# leave this script, optionally in a bad way
+leave()
+{
+  if test "$*" != "0"; then
+    echo "** $0 aborting." | tee -a configure.log
+  fi
+  rm -f $test.[co] $test $test$shared_ext $test.gcno ./--version
+  echo -------------------- >> configure.log
+  echo >> configure.log
+  echo >> configure.log
+  exit $1
+}
+
 # process command line options
 while test $# -ge 1
 do
 case "$1" in
     -h* | --help)
       echo 'usage:' | tee -a configure.log
-      echo '  configure [--zprefix] [--prefix=PREFIX]  [--eprefix=EXPREFIX]' | tee -a configure.log
+      echo '  configure [--const] [--zprefix] [--prefix=PREFIX]  [--eprefix=EXPREFIX]' | tee -a configure.log
       echo '    [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log
       echo '    [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log
         exit 0 ;;
@@ -106,13 +120,18 @@ case "$1" in
     -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
     --sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;;
     --localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;;
-    *) echo "unknown option: $1"; echo "$0 --help for help" | tee -a configure.log; exit 1 ;;
+    -c* | --const) zconst=1; shift ;;
+    *)
+      echo "unknown option: $1" | tee -a configure.log
+      echo "$0 --help for help" | tee -a configure.log
+      leave 1;;
     esac
 done
 
-# define functions for testing compiler and library characteristics and logging the results
+# temporary file name
 test=ztest$$
 
+# put arguments in log, also put test file in log if used in arguments
 show()
 {
   case "$*" in
@@ -124,43 +143,6 @@ show()
   echo $* >> configure.log
 }
 
-cat > $test.c <<EOF
-#error error
-EOF
-if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
-  try()
-  {
-    show $*
-    test "`( $* ) 2>&1 | tee -a configure.log`" = ""
-  }
-  echo - using any output from compiler to indicate an error >> configure.log
-else
-  try()
-  {
-    show $*
-    ( $* ) >> configure.log 2>&1
-    ret=$?
-    if test $ret -ne 0; then
-      echo "(exit code "$ret")" >> configure.log
-    fi
-    return $ret
-  }
-fi
-
-tryboth()
-{
-  show $*
-  got=`( $* ) 2>&1`
-  ret=$?
-  printf %s "$got" >> configure.log
-  if test $ret -ne 0; then
-    return $ret
-  fi
-  test "$got" = ""
-}
-
-echo >> configure.log
-
 # check for gcc vs. cc and set compile and link flags based on the system identified by uname
 cat > $test.c <<EOF
 extern int getchar();
@@ -179,8 +161,8 @@ case `$cc -v 2>&1` in
   *gcc*) gcc=1 ;;
 esac
 
-show $cc -c $cflags $test.c
-if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then
+show $cc -c $test.c
+if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
   echo ... using gcc >> configure.log
   CC="$cc"
   CFLAGS="${CFLAGS--O3} ${ARCHS}"
@@ -191,7 +173,11 @@ if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then
     SFLAGS="${SFLAGS} -m64"
   fi
   if test "${ZLIBGCCWARN}" = "YES"; then
-    CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
+    if test "$zconst" -eq 1; then
+      CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -pedantic -DZLIB_CONST"
+    else
+      CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
+    fi
   fi
   if test -z "$uname"; then
     uname=`(uname -s || echo unknown) 2>/dev/null`
@@ -208,7 +194,7 @@ if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then
 # temporary bypass
         rm -f $test.[co] $test $test$shared_ext
         echo "Please use win32/Makefile.gcc instead." | tee -a configure.log
-        exit 1
+        leave 1
         LDSHARED=${LDSHARED-"$cc -shared"}
         LDSHAREDLIBC=""
         EXE='.exe' ;;
@@ -231,7 +217,11 @@ if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then
              SHAREDLIBV=libz.$VER$shared_ext
              SHAREDLIBM=libz.$VER1$shared_ext
              LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
-             AR="/usr/bin/libtool"
+             if libtool -V 2>&1 | grep Apple > /dev/null; then
+                 AR="libtool"
+             else
+                 AR="/usr/bin/libtool"
+             fi
              ARFLAGS="-o" ;;
   *)             LDSHARED=${LDSHARED-"$cc -shared"} ;;
   esac
@@ -334,7 +324,61 @@ SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
 
 echo >> configure.log
 
+# define functions for testing compiler and library characteristics and logging the results
+
+cat > $test.c <<EOF
+#error error
+EOF
+if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
+  try()
+  {
+    show $*
+    test "`( $* ) 2>&1 | tee -a configure.log`" = ""
+  }
+  echo - using any output from compiler to indicate an error >> configure.log
+else
+try()
+{
+  show $*
+  ( $* ) >> configure.log 2>&1
+  ret=$?
+  if test $ret -ne 0; then
+    echo "(exit code "$ret")" >> configure.log
+  fi
+  return $ret
+}
+fi
+
+tryboth()
+{
+  show $*
+  got=`( $* ) 2>&1`
+  ret=$?
+  printf %s "$got" >> configure.log
+  if test $ret -ne 0; then
+    return $ret
+  fi
+  test "$got" = ""
+}
+
+cat > $test.c << EOF
+int foo() { return 0; }
+EOF
+echo "Checking for obsessive-compulsive compiler options..." >> configure.log
+if try $CC -c $CFLAGS $test.c; then
+  :
+else
+  echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." | tee -a configure.log
+  leave 1
+fi
+
+echo >> configure.log
+
 # see if shared library build supported
+cat > $test.c <<EOF
+extern int getchar();
+int hello() {return getchar();}
+EOF
 if test $shared -eq 1; then
   echo Checking for shared library support... | tee -a configure.log
   # we must test in two steps (cc then ld), required at least on SunOS 4.x
@@ -362,8 +406,6 @@ else
   TEST="all teststatic testshared"
 fi
 
-echo >> configure.log
-
 # check for underscores in external names for use by assembler code
 CPP=${CPP-"$CC -E"}
 case $CFLAGS in
@@ -698,35 +740,6 @@ EOF
   fi
 fi
 
-echo >> configure.log
-
-# find a four-byte unsiged integer type for crc calculations
-cat > $test.c <<EOF
-#include <stdio.h>
-#define is32(n,t) for(n=1,k=0;n;n<<=1,k++);if(k==32){puts(t);return 0;}
-int main() {
-    int k;
-    unsigned i;
-    unsigned long l;
-    unsigned short s;
-    is32(i, "unsigned")
-    is32(l, "unsigned long")
-    is32(s, "unsigned short")
-    return 1;
-}
-EOF
-Z_U4=""
-if try $CC $CFLAGS $test.c -o $test && Z_U4=`./$test` && test -n "$Z_U4"; then
-  sed < zconf.h "/#define Z_U4/s/\/\* \.\/configure may/#define Z_U4 $Z_U4   \/* .\/configure put the/" > zconf.temp.h
-  mv zconf.temp.h zconf.h
-  echo "Looking for a four-byte integer type... Found." | tee -a configure.log
-else
-  echo "Looking for a four-byte integer type... Not found." | tee -a configure.log
-fi
-
-# clean up files produced by running the compiler and linker
-rm -f $test.[co] $test $test$shared_ext $test.gcno
-
 # show the results in the log
 echo >> configure.log
 echo ALL = $ALL >> configure.log
@@ -758,9 +771,6 @@ echo mandir = $mandir >> configure.log
 echo prefix = $prefix >> configure.log
 echo sharedlibdir = $sharedlibdir >> configure.log
 echo uname = $uname >> configure.log
-echo -------------------- >> configure.log
-echo >> configure.log
-echo >> configure.log
 
 # udpate Makefile with the configure results
 sed < Makefile.in "
@@ -816,3 +826,6 @@ sed < zlib.pc.in "
 " | sed -e "
 s/\@VERSION\@/$VER/g;
 " > zlib.pc
+
+# done
+leave 0
diff --git a/compat/zlib/contrib/README.contrib b/compat/zlib/contrib/README.contrib
index dd2285d..c66349b 100644
--- a/compat/zlib/contrib/README.contrib
+++ b/compat/zlib/contrib/README.contrib
@@ -75,3 +75,4 @@ untgz/      by Pedro A. Aranda Gutierrez <paag@tid.es>
 
 vstudio/    by Gilles Vollant <info@winimage.com>
         Building a minizip-enhanced zlib with Microsoft Visual Studio
+        Includes vc11 from kreuzerkrieg and vc12 from davispuh
diff --git a/compat/zlib/contrib/blast/blast.c b/compat/zlib/contrib/blast/blast.c
index 4ce697a..69ef0fe 100644
--- a/compat/zlib/contrib/blast/blast.c
+++ b/compat/zlib/contrib/blast/blast.c
@@ -1,7 +1,7 @@
 /* blast.c
- * Copyright (C) 2003 Mark Adler
+ * Copyright (C) 2003, 2012 Mark Adler
  * For conditions of distribution and use, see copyright notice in blast.h
- * version 1.1, 16 Feb 2003
+ * version 1.2, 24 Oct 2012
  *
  * blast.c decompresses data compressed by the PKWare Compression Library.
  * This function provides functionality similar to the explode() function of
@@ -22,6 +22,8 @@
  *
  * 1.0  12 Feb 2003     - First version
  * 1.1  16 Feb 2003     - Fixed distance check for > 4 GB uncompressed data
+ * 1.2  24 Oct 2012     - Add note about using binary mode in stdio
+ *                      - Fix comparisons of differently signed integers
  */
 
 #include <setjmp.h>             /* for setjmp(), longjmp(), and jmp_buf */
@@ -279,7 +281,7 @@ local int decomp(struct state *s)
     int dict;           /* log2(dictionary size) - 6 */
     int symbol;         /* decoded symbol, extra bits for distance */
     int len;            /* length for copy */
-    int dist;           /* distance for copy */
+    unsigned dist;      /* distance for copy */
     int copy;           /* copy counter */
     unsigned char *from, *to;   /* copy pointers */
     static int virgin = 1;                              /* build tables once */
diff --git a/compat/zlib/contrib/blast/blast.h b/compat/zlib/contrib/blast/blast.h
index ce9e541..658cfd3 100644
--- a/compat/zlib/contrib/blast/blast.h
+++ b/compat/zlib/contrib/blast/blast.h
@@ -1,6 +1,6 @@
 /* blast.h -- interface for blast.c
-  Copyright (C) 2003 Mark Adler
-  version 1.1, 16 Feb 2003
+  Copyright (C) 2003, 2012 Mark Adler
+  version 1.2, 24 Oct 2012
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the author be held liable for any damages
@@ -28,6 +28,10 @@
  * that library.  (Note: PKWare overused the "implode" verb, and the format
  * used by their library implode() function is completely different and
  * incompatible with the implode compression method supported by PKZIP.)
+ *
+ * The binary mode for stdio functions should be used to assure that the
+ * compressed data is not corrupted when read or written.  For example:
+ * fopen(..., "rb") and fopen(..., "wb").
  */
 
 
diff --git a/compat/zlib/contrib/delphi/ZLib.pas b/compat/zlib/contrib/delphi/ZLib.pas
index f24bb3e..a579974 100644
--- a/compat/zlib/contrib/delphi/ZLib.pas
+++ b/compat/zlib/contrib/delphi/ZLib.pas
@@ -152,7 +152,7 @@ procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
   const OutBuf: Pointer; BufSize: Integer);
 
 const
-  zlib_version = '1.2.7';
+  zlib_version = '1.2.8';
 
 type
   EZlibError = class(Exception);
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs b/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
index 1090288..b273d54 100644
--- a/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
@@ -1,5 +1,5 @@
 //

-// © Copyright Henrik Ravn 2004

+// © Copyright Henrik Ravn 2004

 //

 // Use, modification and distribution are subject to the Boost Software License, Version 1.0.

 // (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

@@ -156,7 +156,7 @@ namespace DotZLibTests
         public void Info_Version()

         {

             Info info = new Info();

-            Assert.AreEqual("1.2.7", Info.Version);

+            Assert.AreEqual("1.2.8", Info.Version);

             Assert.AreEqual(32, info.SizeOfUInt);

             Assert.AreEqual(32, info.SizeOfULong);

             Assert.AreEqual(32, info.SizeOfPointer);

diff --git a/compat/zlib/contrib/infback9/infback9.c b/compat/zlib/contrib/infback9/infback9.c
index 7bbe90c..05fb3e3 100644
--- a/compat/zlib/contrib/infback9/infback9.c
+++ b/compat/zlib/contrib/infback9/infback9.c
@@ -222,14 +222,13 @@ out_func out;
 void FAR *out_desc;
 {
     struct inflate_state FAR *state;
-    unsigned char FAR *next;    /* next input */
+    z_const unsigned char FAR *next;    /* next input */
     unsigned char FAR *put;     /* next output */
     unsigned have;              /* available input */
     unsigned long left;         /* available output */
     inflate_mode mode;          /* current inflate mode */
     int lastblock;              /* true if processing last block */
     int wrap;                   /* true if the window has wrapped */
-    unsigned long write;        /* window write index */
     unsigned char FAR *window;  /* allocated sliding window, if needed */
     unsigned long hold;         /* bit buffer */
     unsigned bits;              /* bits in bit buffer */
@@ -259,7 +258,6 @@ void FAR *out_desc;
     strm->msg = Z_NULL;
     mode = TYPE;
     lastblock = 0;
-    write = 0;
     wrap = 0;
     window = state->window;
     next = strm->next_in;
diff --git a/compat/zlib/contrib/infback9/inftree9.c b/compat/zlib/contrib/infback9/inftree9.c
index 5a0b328..4a73ad2 100644
--- a/compat/zlib/contrib/infback9/inftree9.c
+++ b/compat/zlib/contrib/infback9/inftree9.c
@@ -1,5 +1,5 @@
 /* inftree9.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2012 Mark Adler
+ * Copyright (C) 1995-2013 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -9,7 +9,7 @@
 #define MAXBITS 15
 
 const char inflate9_copyright[] =
-   " inflate9 1.2.7 Copyright 1995-2012 Mark Adler ";
+   " inflate9 1.2.8 Copyright 1995-2013 Mark Adler ";
 /*
   If you use the zlib library in a product, an acknowledgment is welcome
   in the documentation of your product. If for some reason you cannot
@@ -64,7 +64,7 @@ unsigned short FAR *work;
     static const unsigned short lext[31] = { /* Length codes 257..285 extra */
         128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
         130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
-        133, 133, 133, 133, 144, 78, 68};
+        133, 133, 133, 133, 144, 72, 78};
     static const unsigned short dbase[32] = { /* Distance codes 0..31 base */
         1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49,
         65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073,
diff --git a/compat/zlib/contrib/minizip/configure.ac b/compat/zlib/contrib/minizip/configure.ac
index 6a9af21..827a4e0 100644
--- a/compat/zlib/contrib/minizip/configure.ac
+++ b/compat/zlib/contrib/minizip/configure.ac
@@ -1,7 +1,7 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_INIT([minizip], [1.2.7], [bugzilla.redhat.com])
+AC_INIT([minizip], [1.2.8], [bugzilla.redhat.com])
 AC_CONFIG_SRCDIR([minizip.c])
 AM_INIT_AUTOMAKE([foreign])
 LT_INIT
diff --git a/compat/zlib/contrib/minizip/crypt.h b/compat/zlib/contrib/minizip/crypt.h
index a01d08d..1e9e820 100644
--- a/compat/zlib/contrib/minizip/crypt.h
+++ b/compat/zlib/contrib/minizip/crypt.h
@@ -32,7 +32,7 @@
 /***********************************************************************
  * Return the next byte in the pseudo-random sequence
  */
-static int decrypt_byte(unsigned long* pkeys, const unsigned long* pcrc_32_tab)
+static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
 {
     unsigned temp;  /* POTENTIAL BUG:  temp*(temp^1) may overflow in an
                      * unpredictable manner on 16-bit systems; not a problem
@@ -45,7 +45,7 @@ static int decrypt_byte(unsigned long* pkeys, const unsigned long* pcrc_32_tab)
 /***********************************************************************
  * Update the encryption keys with the next byte of plain text
  */
-static int update_keys(unsigned long* pkeys,const unsigned long* pcrc_32_tab,int c)
+static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
 {
     (*(pkeys+0)) = CRC32((*(pkeys+0)), c);
     (*(pkeys+1)) += (*(pkeys+0)) & 0xff;
@@ -62,7 +62,7 @@ static int update_keys(unsigned long* pkeys,const unsigned long* pcrc_32_tab,int
  * Initialize the encryption keys and the random header according to
  * the given password.
  */
-static void init_keys(const char* passwd,unsigned long* pkeys,const unsigned long* pcrc_32_tab)
+static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcrc_32_tab)
 {
     *(pkeys+0) = 305419896L;
     *(pkeys+1) = 591751049L;
@@ -91,7 +91,7 @@ static int crypthead(const char* passwd,      /* password string */
                      unsigned char* buf,      /* where to write header */
                      int bufSize,
                      unsigned long* pkeys,
-                     const unsigned long* pcrc_32_tab,
+                     const z_crc_t* pcrc_32_tab,
                      unsigned long crcForCrypting)
 {
     int n;                       /* index in random header */
diff --git a/compat/zlib/contrib/minizip/iowin32.c b/compat/zlib/contrib/minizip/iowin32.c
index 6a2a883..a46d96c 100644
--- a/compat/zlib/contrib/minizip/iowin32.c
+++ b/compat/zlib/contrib/minizip/iowin32.c
@@ -25,6 +25,13 @@
 #define INVALID_SET_FILE_POINTER ((DWORD)-1)
 #endif
 
+
+#if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API)))
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
+#define IOWIN32_USING_WINRT_API 1
+#endif
+#endif
+
 voidpf  ZCALLBACK win32_open_file_func  OF((voidpf opaque, const char* filename, int mode));
 uLong   ZCALLBACK win32_read_file_func  OF((voidpf opaque, voidpf stream, void* buf, uLong size));
 uLong   ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
@@ -93,8 +100,22 @@ voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int
 
     win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
 
+#ifdef IOWIN32_USING_WINRT_API
+#ifdef UNICODE
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+    {
+        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
+        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
+        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+    }
+#endif
+#else
     if ((filename!=NULL) && (dwDesiredAccess != 0))
         hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
 
     return win32_build_iowin(hFile);
 }
@@ -108,8 +129,17 @@ voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int
 
     win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
 
+#ifdef IOWIN32_USING_WINRT_API
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+    {
+        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
+        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
+        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+    }
+#else
     if ((filename!=NULL) && (dwDesiredAccess != 0))
         hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
 
     return win32_build_iowin(hFile);
 }
@@ -123,8 +153,13 @@ voidpf ZCALLBACK win32_open64_file_funcW (voidpf opaque,const void* filename,int
 
     win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
 
+#ifdef IOWIN32_USING_WINRT_API
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition,NULL);
+#else
     if ((filename!=NULL) && (dwDesiredAccess != 0))
         hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
 
     return win32_build_iowin(hFile);
 }
@@ -138,8 +173,22 @@ voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mo
 
     win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
 
+#ifdef IOWIN32_USING_WINRT_API
+#ifdef UNICODE
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+    {
+        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
+        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
+        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+    }
+#endif
+#else
     if ((filename!=NULL) && (dwDesiredAccess != 0))
         hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
 
     return win32_build_iowin(hFile);
 }
@@ -188,6 +237,26 @@ uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* b
     return ret;
 }
 
+static BOOL MySetFilePointerEx(HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos,  DWORD dwMoveMethod)
+{
+#ifdef IOWIN32_USING_WINRT_API
+    return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod);
+#else
+    LONG lHigh = pos.HighPart;
+    DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, FILE_CURRENT);
+    BOOL fOk = TRUE;
+    if (dwNewPos == 0xFFFFFFFF)
+        if (GetLastError() != NO_ERROR)
+            fOk = FALSE;
+    if ((newPos != NULL) && (fOk))
+    {
+        newPos->LowPart = dwNewPos;
+        newPos->HighPart = lHigh;
+    }
+    return fOk;
+#endif
+}
+
 long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream)
 {
     long ret=-1;
@@ -196,15 +265,17 @@ long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream)
         hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
     if (hFile != NULL)
     {
-        DWORD dwSet = SetFilePointer(hFile, 0, NULL, FILE_CURRENT);
-        if (dwSet == INVALID_SET_FILE_POINTER)
+        LARGE_INTEGER pos;
+        pos.QuadPart = 0;
+
+        if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
         {
             DWORD dwErr = GetLastError();
             ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
             ret = -1;
         }
         else
-            ret=(long)dwSet;
+            ret=(long)pos.LowPart;
     }
     return ret;
 }
@@ -218,17 +289,17 @@ ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream)
 
     if (hFile)
     {
-        LARGE_INTEGER li;
-        li.QuadPart = 0;
-        li.u.LowPart = SetFilePointer(hFile, li.u.LowPart, &li.u.HighPart, FILE_CURRENT);
-        if ( (li.LowPart == 0xFFFFFFFF) && (GetLastError() != NO_ERROR))
+        LARGE_INTEGER pos;
+        pos.QuadPart = 0;
+
+        if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
         {
             DWORD dwErr = GetLastError();
             ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
             ret = (ZPOS64_T)-1;
         }
         else
-            ret=li.QuadPart;
+            ret=pos.QuadPart;
     }
     return ret;
 }
@@ -258,8 +329,9 @@ long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,in
 
     if (hFile != NULL)
     {
-        DWORD dwSet = SetFilePointer(hFile, offset, NULL, dwMoveMethod);
-        if (dwSet == INVALID_SET_FILE_POINTER)
+        LARGE_INTEGER pos;
+        pos.QuadPart = offset;
+        if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
         {
             DWORD dwErr = GetLastError();
             ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
@@ -296,9 +368,9 @@ long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T off
 
     if (hFile)
     {
-        LARGE_INTEGER* li = (LARGE_INTEGER*)&offset;
-        DWORD dwSet = SetFilePointer(hFile, li->u.LowPart, &li->u.HighPart, dwMoveMethod);
-        if (dwSet == INVALID_SET_FILE_POINTER)
+        LARGE_INTEGER pos;
+        pos.QuadPart = offset;
+        if (!MySetFilePointerEx(hFile, pos, NULL, FILE_CURRENT))
         {
             DWORD dwErr = GetLastError();
             ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
diff --git a/compat/zlib/contrib/minizip/miniunzip.1 b/compat/zlib/contrib/minizip/miniunzip.1
new file mode 100644
index 0000000..111ac69
--- /dev/null
+++ b/compat/zlib/contrib/minizip/miniunzip.1
@@ -0,0 +1,63 @@
+.\"                                      Hey, EMACS: -*- nroff -*-
+.TH miniunzip 1 "Nov 7, 2001"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh        disable hyphenation
+.\" .hy        enable hyphenation
+.\" .ad l      left justify
+.\" .ad b      justify to both left and right margins
+.\" .nf        disable filling
+.\" .fi        enable filling
+.\" .br        insert line break
+.\" .sp <n>    insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+miniunzip - uncompress and examine ZIP archives
+.SH SYNOPSIS
+.B miniunzip
+.RI [ -exvlo ]
+zipfile [ files_to_extract ] [-d tempdir]
+.SH DESCRIPTION
+.B minizip
+is a simple tool which allows the extraction of compressed file
+archives in the ZIP format used by the MS-DOS utility PKZIP.  It was
+written as a demonstration of the
+.IR zlib (3)
+library and therefore lack many of the features of the
+.IR unzip (1)
+program.
+.SH OPTIONS
+A number of options are supported.  With the exception of
+.BI \-d\  tempdir
+these must be supplied before any
+other arguments and are:
+.TP
+.BI \-l\ ,\ \-\-v
+List the files in the archive without extracting them.
+.TP
+.B \-o
+Overwrite files without prompting for confirmation.
+.TP
+.B \-x
+Extract files (default).
+.PP
+The
+.I zipfile
+argument is the name of the archive to process. The next argument can be used
+to specify a single file to extract from the archive.
+
+Lastly, the following option can be specified at the end of the command-line:
+.TP
+.BI \-d\  tempdir
+Extract the archive in the directory
+.I tempdir
+rather than the current directory.
+.SH SEE ALSO
+.BR minizip (1),
+.BR zlib (3),
+.BR unzip (1).
+.SH AUTHOR
+This program was written by Gilles Vollant.  This manual page was
+written by Mark Brown <broonie@sirena.org.uk>. The -d tempdir option
+was added by Dirk Eddelbuettel <edd@debian.org>.
diff --git a/compat/zlib/contrib/minizip/minizip.1 b/compat/zlib/contrib/minizip/minizip.1
new file mode 100644
index 0000000..1154484
--- /dev/null
+++ b/compat/zlib/contrib/minizip/minizip.1
@@ -0,0 +1,46 @@
+.\"                                      Hey, EMACS: -*- nroff -*-
+.TH minizip 1 "May 2, 2001"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh        disable hyphenation
+.\" .hy        enable hyphenation
+.\" .ad l      left justify
+.\" .ad b      justify to both left and right margins
+.\" .nf        disable filling
+.\" .fi        enable filling
+.\" .br        insert line break
+.\" .sp <n>    insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+minizip - create ZIP archives
+.SH SYNOPSIS
+.B minizip
+.RI [ -o ]
+zipfile [ " files" ... ]
+.SH DESCRIPTION
+.B minizip
+is a simple tool which allows the creation of compressed file archives
+in the ZIP format used by the MS-DOS utility PKZIP.  It was written as
+a demonstration of the
+.IR zlib (3)
+library and therefore lack many of the features of the
+.IR zip (1)
+program.
+.SH OPTIONS
+The first argument supplied is the name of the ZIP archive to create or
+.RI -o
+in which case it is ignored and the second argument treated as the
+name of the ZIP file.  If the ZIP file already exists it will be
+overwritten.
+.PP
+Subsequent arguments specify a list of files to place in the ZIP
+archive.  If none are specified then an empty archive will be created.
+.SH SEE ALSO
+.BR miniunzip (1),
+.BR zlib (3),
+.BR zip (1).
+.SH AUTHOR
+This program was written by Gilles Vollant.  This manual page was
+written by Mark Brown <broonie@sirena.org.uk>.
+
diff --git a/compat/zlib/contrib/minizip/unzip.c b/compat/zlib/contrib/minizip/unzip.c
index affad4b..9093504 100644
--- a/compat/zlib/contrib/minizip/unzip.c
+++ b/compat/zlib/contrib/minizip/unzip.c
@@ -188,7 +188,7 @@ typedef struct
 
 #    ifndef NOUNCRYPT
     unsigned long keys[3];     /* keys defining the pseudo-random sequence */
-    const unsigned long* pcrc_32_tab;
+    const z_crc_t* pcrc_32_tab;
 #    endif
 } unz64_s;
 
@@ -801,9 +801,9 @@ extern unzFile ZEXPORT unzOpen64 (const void *path)
 }
 
 /*
-  Close a ZipFile opened with unzipOpen.
-  If there is files inside the .Zip opened with unzipOpenCurrentFile (see later),
-    these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
+  Close a ZipFile opened with unzOpen.
+  If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
+    these files MUST be closed with unzCloseCurrentFile before call unzClose.
   return UNZ_OK if there is no problem. */
 extern int ZEXPORT unzClose (unzFile file)
 {
@@ -1223,7 +1223,7 @@ extern int ZEXPORT unzGoToNextFile (unzFile  file)
 
 /*
   Try locate the file szFileName in the zipfile.
-  For the iCaseSensitivity signification, see unzipStringFileNameCompare
+  For the iCaseSensitivity signification, see unzStringFileNameCompare
 
   return value :
   UNZ_OK if the file is found. It becomes the current file.
@@ -1998,7 +1998,7 @@ extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len)
 }
 
 /*
-  Close the file in zip opened with unzipOpenCurrentFile
+  Close the file in zip opened with unzOpenCurrentFile
   Return UNZ_CRCERROR if all the file was read but the CRC is not good
 */
 extern int ZEXPORT unzCloseCurrentFile (unzFile file)
diff --git a/compat/zlib/contrib/minizip/unzip.h b/compat/zlib/contrib/minizip/unzip.h
index 3183968..2104e39 100644
--- a/compat/zlib/contrib/minizip/unzip.h
+++ b/compat/zlib/contrib/minizip/unzip.h
@@ -197,9 +197,9 @@ extern unzFile ZEXPORT unzOpen2_64 OF((const void *path,
 
 extern int ZEXPORT unzClose OF((unzFile file));
 /*
-  Close a ZipFile opened with unzipOpen.
+  Close a ZipFile opened with unzOpen.
   If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
-    these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
+    these files MUST be closed with unzCloseCurrentFile before call unzClose.
   return UNZ_OK if there is no problem. */
 
 extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
diff --git a/compat/zlib/contrib/minizip/zip.c b/compat/zlib/contrib/minizip/zip.c
index 147934c..ea54853 100644
--- a/compat/zlib/contrib/minizip/zip.c
+++ b/compat/zlib/contrib/minizip/zip.c
@@ -157,7 +157,7 @@ typedef struct
     ZPOS64_T totalUncompressedData;
 #ifndef NOCRYPT
     unsigned long keys[3];     /* keys defining the pseudo-random sequence */
-    const unsigned long* pcrc_32_tab;
+    const z_crc_t* pcrc_32_tab;
     int crypt_header_size;
 #endif
 } curfile64_info;
diff --git a/compat/zlib/contrib/pascal/zlibpas.pas b/compat/zlib/contrib/pascal/zlibpas.pas
index 7abd862..e6a0782 100644
--- a/compat/zlib/contrib/pascal/zlibpas.pas
+++ b/compat/zlib/contrib/pascal/zlibpas.pas
@@ -10,8 +10,8 @@ unit zlibpas;
 interface
 
 const
-  ZLIB_VERSION = '1.2.7';
-  ZLIB_VERNUM  = $1270;
+  ZLIB_VERSION = '1.2.8';
+  ZLIB_VERNUM  = $1280;
 
 type
   alloc_func = function(opaque: Pointer; items, size: Integer): Pointer;
diff --git a/compat/zlib/contrib/puff/puff.c b/compat/zlib/contrib/puff/puff.c
index df8470c..ba58483 100644
--- a/compat/zlib/contrib/puff/puff.c
+++ b/compat/zlib/contrib/puff/puff.c
@@ -1,8 +1,8 @@
 /*
  * puff.c
- * Copyright (C) 2002-2010 Mark Adler
+ * Copyright (C) 2002-2013 Mark Adler
  * For conditions of distribution and use, see copyright notice in puff.h
- * version 2.2, 25 Apr 2010
+ * version 2.3, 21 Jan 2013
  *
  * puff.c is a simple inflate written to be an unambiguous way to specify the
  * deflate format.  It is not written for speed but rather simplicity.  As a
@@ -76,6 +76,7 @@
  *                      - Move NIL to puff.h
  *                      - Allow incomplete code only if single code length is 1
  *                      - Add full code coverage test to Makefile
+ * 2.3  21 Jan 2013     - Check for invalid code length codes in dynamic blocks
  */
 
 #include <setjmp.h>             /* for setjmp(), longjmp(), and jmp_buf */
@@ -704,6 +705,8 @@ local int dynamic(struct state *s)
         int len;                /* last length to repeat */
 
         symbol = decode(s, &lencode);
+        if (symbol < 0)
+            return symbol;          /* invalid symbol */
         if (symbol < 16)                /* length in 0..15 */
             lengths[index++] = symbol;
         else {                          /* repeat instruction */
diff --git a/compat/zlib/contrib/puff/puff.h b/compat/zlib/contrib/puff/puff.h
index 6a0080a..e23a245 100644
--- a/compat/zlib/contrib/puff/puff.h
+++ b/compat/zlib/contrib/puff/puff.h
@@ -1,6 +1,6 @@
 /* puff.h
-  Copyright (C) 2002-2010 Mark Adler, all rights reserved
-  version 2.2, 25 Apr 2010
+  Copyright (C) 2002-2013 Mark Adler, all rights reserved
+  version 2.3, 21 Jan 2013
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the author be held liable for any damages
diff --git a/compat/zlib/contrib/puff/pufftest.c b/compat/zlib/contrib/puff/pufftest.c
index 76e35f6..7764814 100644
--- a/compat/zlib/contrib/puff/pufftest.c
+++ b/compat/zlib/contrib/puff/pufftest.c
@@ -1,8 +1,8 @@
 /*
  * pufftest.c
- * Copyright (C) 2002-2010 Mark Adler
+ * Copyright (C) 2002-2013 Mark Adler
  * For conditions of distribution and use, see copyright notice in puff.h
- * version 2.2, 25 Apr 2010
+ * version 2.3, 21 Jan 2013
  */
 
 /* Example of how to use puff().
diff --git a/compat/zlib/contrib/testzlib/testzlib.c b/compat/zlib/contrib/testzlib/testzlib.c
index 135888e..5f659de 100644
--- a/compat/zlib/contrib/testzlib/testzlib.c
+++ b/compat/zlib/contrib/testzlib/testzlib.c
@@ -116,10 +116,10 @@ DWORD GetMsecSincePerfCounter(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPe
     return dwRet;

 }

 

-int ReadFileMemory(const char* filename,long* plFileSize,void** pFilePtr)

+int ReadFileMemory(const char* filename,long* plFileSize,unsigned char** pFilePtr)

 {

     FILE* stream;

-    void* ptr;

+    unsigned char* ptr;

     int retVal=1;

     stream=fopen(filename, "rb");

     if (stream==NULL)

diff --git a/compat/zlib/contrib/vstudio/readme.txt b/compat/zlib/contrib/vstudio/readme.txt
index 59c8b8b..bfdcd9d 100644
--- a/compat/zlib/contrib/vstudio/readme.txt
+++ b/compat/zlib/contrib/vstudio/readme.txt
@@ -1,4 +1,4 @@
-Building instructions for the DLL versions of Zlib 1.2.7

+Building instructions for the DLL versions of Zlib 1.2.8

 ========================================================

 

 This directory contains projects that build zlib and minizip using

@@ -28,6 +28,11 @@ Build instructions for Visual Studio 2010 (32 bits or 64 bits)
 - Uncompress current zlib, including all contrib/* files

 - Open contrib\vstudio\vc10\zlibvc.sln with Microsoft Visual C++ 2010

 

+Build instructions for Visual Studio 2012 (32 bits or 64 bits)

+--------------------------------------------------------------

+- Uncompress current zlib, including all contrib/* files

+- Open contrib\vstudio\vc11\zlibvc.sln with Microsoft Visual C++ 2012

+

 

 Important

 ---------

diff --git a/compat/zlib/contrib/vstudio/vc10/miniunz.vcxproj.user b/compat/zlib/contrib/vstudio/vc10/miniunz.vcxproj.user
deleted file mode 100644
index 695b5c7..0000000
--- a/compat/zlib/contrib/vstudio/vc10/miniunz.vcxproj.user
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>

-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

-</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/minizip.vcxproj.user b/compat/zlib/contrib/vstudio/vc10/minizip.vcxproj.user
deleted file mode 100644
index 695b5c7..0000000
--- a/compat/zlib/contrib/vstudio/vc10/minizip.vcxproj.user
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>

-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

-</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/testzlib.vcxproj.user b/compat/zlib/contrib/vstudio/vc10/testzlib.vcxproj.user
deleted file mode 100644
index 695b5c7..0000000
--- a/compat/zlib/contrib/vstudio/vc10/testzlib.vcxproj.user
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>

-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

-</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/testzlibdll.vcxproj.user b/compat/zlib/contrib/vstudio/vc10/testzlibdll.vcxproj.user
deleted file mode 100644
index 695b5c7..0000000
--- a/compat/zlib/contrib/vstudio/vc10/testzlibdll.vcxproj.user
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>

-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

-</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/zlib.rc b/compat/zlib/contrib/vstudio/vc10/zlib.rc
index 8eca4db..73f6476 100644
--- a/compat/zlib/contrib/vstudio/vc10/zlib.rc
+++ b/compat/zlib/contrib/vstudio/vc10/zlib.rc
@@ -2,8 +2,8 @@
 

 #define IDR_VERSION1  1

 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE

-  FILEVERSION	 1.2.7,0

-  PRODUCTVERSION 1.2.7,0

+  FILEVERSION	 1,2,8,0

+  PRODUCTVERSION 1,2,8,0

   FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK

   FILEFLAGS	0

   FILEOS	VOS_DOS_WINDOWS32

@@ -17,12 +17,12 @@ BEGIN
 

     BEGIN

       VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"

-      VALUE "FileVersion",	"1.2.7\0"

+      VALUE "FileVersion",	"1.2.8\0"

       VALUE "InternalName",	"zlib\0"

-      VALUE "OriginalFilename",	"zlib.dll\0"

+      VALUE "OriginalFilename",	"zlibwapi.dll\0"

       VALUE "ProductName",	"ZLib.DLL\0"

       VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"

-      VALUE "LegalCopyright", "(C) 1995-2012 Jean-loup Gailly & Mark Adler\0"

+      VALUE "LegalCopyright", "(C) 1995-2013 Jean-loup Gailly & Mark Adler\0"

     END

   END

   BLOCK "VarFileInfo"

diff --git a/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj b/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj
index 2682fca..b9f2bbe 100644
--- a/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj
+++ b/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj
@@ -182,6 +182,10 @@
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

     </Lib>

+    <PreBuildEvent>

+      <Command>cd ..\..\masmx86

+bld_ml32.bat</Command>

+    </PreBuildEvent>

   </ItemDefinitionGroup>

   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">

     <ClCompile>

@@ -210,6 +214,10 @@
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

     </Lib>

+    <PreBuildEvent>

+      <Command>cd ..\..\masmx86

+bld_ml32.bat</Command>

+    </PreBuildEvent>

   </ItemDefinitionGroup>

   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">

     <ClCompile>

@@ -266,6 +274,10 @@
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

     </Lib>

+    <PreBuildEvent>

+      <Command>cd ..\..\masmx64

+bld_ml64.bat</Command>

+    </PreBuildEvent>

   </ItemDefinitionGroup>

   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">

     <Midl>

@@ -326,6 +338,10 @@
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

     </Lib>

+    <PreBuildEvent>

+      <Command>cd ..\..\masmx64

+bld_ml64.bat</Command>

+    </PreBuildEvent>

   </ItemDefinitionGroup>

   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">

     <Midl>

diff --git a/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj.user b/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj.user
deleted file mode 100644
index 695b5c7..0000000
--- a/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj.user
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>

-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

-</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/zlibvc.def b/compat/zlib/contrib/vstudio/vc10/zlibvc.def
index 18ddf50..6367046 100644
--- a/compat/zlib/contrib/vstudio/vc10/zlibvc.def
+++ b/compat/zlib/contrib/vstudio/vc10/zlibvc.def
@@ -1,7 +1,7 @@
 LIBRARY

 ; zlib data compression and ZIP file I/O library

 

-VERSION		1.2.7

+VERSION		1.2.8

 

 EXPORTS

         adler32                                  @1

@@ -134,6 +134,10 @@ EXPORTS
         gzgetc_                                 @161

         inflateResetKeep                        @163

         deflateResetKeep                        @164

-
-; zlib1 v1.2.7 added:
-        gzopen_w                                @165
+

+; zlib1 v1.2.7 added:

+        gzopen_w                                @165

+

+; zlib1 v1.2.8 added:

+        inflateGetDictionary                    @166

+        gzvprintf                               @167

diff --git a/compat/zlib/contrib/vstudio/vc10/zlibvc.vcxproj b/compat/zlib/contrib/vstudio/vc10/zlibvc.vcxproj
index 9218fdc..6ff9ddb 100644
--- a/compat/zlib/contrib/vstudio/vc10/zlibvc.vcxproj
+++ b/compat/zlib/contrib/vstudio/vc10/zlibvc.vcxproj
@@ -180,10 +180,10 @@
     <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>

     <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />

     <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />

-    <TargetName Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">zlibwapi</TargetName>

+    <TargetName Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">zlibwapid</TargetName>

     <TargetName Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">zlibwapi</TargetName>

     <TargetName Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">zlibwapi</TargetName>

-    <TargetName Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">zlibwapi</TargetName>

+    <TargetName Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">zlibwapid</TargetName>

     <TargetName Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'">zlibwapi</TargetName>

     <TargetName Condition="'$(Configuration)|$(Platform)'=='Release|x64'">zlibwapi</TargetName>

   </PropertyGroup>

@@ -220,18 +220,14 @@
     <Link>

       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>

       <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>

-      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

       <GenerateDebugInformation>true</GenerateDebugInformation>

-      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

       <GenerateMapFile>true</GenerateMapFile>

-      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

       <SubSystem>Windows</SubSystem>

       <RandomizedBaseAddress>false</RandomizedBaseAddress>

       <DataExecutionPrevention>

       </DataExecutionPrevention>

-      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

     </Link>

     <PreBuildEvent>

       <Command>cd ..\..\masmx86

@@ -272,18 +268,14 @@ bld_ml32.bat</Command>
     </ResourceCompile>

     <Link>

       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>

-      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>

       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

-      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

       <GenerateMapFile>true</GenerateMapFile>

-      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

       <SubSystem>Windows</SubSystem>

       <RandomizedBaseAddress>false</RandomizedBaseAddress>

       <DataExecutionPrevention>

       </DataExecutionPrevention>

-      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

     </Link>

   </ItemDefinitionGroup>

   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">

@@ -321,18 +313,14 @@ bld_ml32.bat</Command>
     <Link>

       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>

       <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>

-      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>

       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

-      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

       <GenerateMapFile>true</GenerateMapFile>

-      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

       <SubSystem>Windows</SubSystem>

       <RandomizedBaseAddress>false</RandomizedBaseAddress>

       <DataExecutionPrevention>

       </DataExecutionPrevention>

-      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

     </Link>

     <PreBuildEvent>

       <Command>cd ..\..\masmx86

@@ -371,19 +359,15 @@ bld_ml32.bat</Command>
     </ResourceCompile>

     <Link>

       <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>

-      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

       <GenerateDebugInformation>true</GenerateDebugInformation>

-      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

       <GenerateMapFile>true</GenerateMapFile>

-      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

       <SubSystem>Windows</SubSystem>

-      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

       <TargetMachine>MachineX64</TargetMachine>

     </Link>

     <PreBuildEvent>

-      <Command>cd ..\..\contrib\masmx64

+      <Command>cd ..\..\masmx64

 bld_ml64.bat</Command>

     </PreBuildEvent>

   </ItemDefinitionGroup>

@@ -463,15 +447,11 @@ bld_ml64.bat</Command>
       <Culture>0x040c</Culture>

     </ResourceCompile>

     <Link>

-      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>

       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

-      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

       <GenerateMapFile>true</GenerateMapFile>

-      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

       <SubSystem>Windows</SubSystem>

-      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

       <TargetMachine>MachineX64</TargetMachine>

     </Link>

   </ItemDefinitionGroup>

@@ -554,15 +534,11 @@ bld_ml64.bat</Command>
     </ResourceCompile>

     <Link>

       <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>

-      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

       <SuppressStartupBanner>true</SuppressStartupBanner>

       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>

       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

-      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

       <GenerateMapFile>true</GenerateMapFile>

-      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

       <SubSystem>Windows</SubSystem>

-      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

       <TargetMachine>MachineX64</TargetMachine>

     </Link>

     <PreBuildEvent>

diff --git a/compat/zlib/contrib/vstudio/vc10/zlibvc.vcxproj.user b/compat/zlib/contrib/vstudio/vc10/zlibvc.vcxproj.user
deleted file mode 100644
index 695b5c7..0000000
--- a/compat/zlib/contrib/vstudio/vc10/zlibvc.vcxproj.user
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>

-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

-</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc11/miniunz.vcxproj b/compat/zlib/contrib/vstudio/vc11/miniunz.vcxproj
new file mode 100644
index 0000000..8f9f20b
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/miniunz.vcxproj
@@ -0,0 +1,314 @@
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+      <Configuration>Debug</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|Win32">

+      <Configuration>Debug</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|x64">

+      <Configuration>Debug</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Itanium">

+      <Configuration>Release</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Win32">

+      <Configuration>Release</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|x64">

+      <Configuration>Release</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+  </ItemGroup>

+  <PropertyGroup Label="Globals">

+    <ProjectGuid>{C52F9E7B-498A-42BE-8DB4-85A15694382A}</ProjectGuid>

+    <Keyword>Win32Proj</Keyword>

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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+    <PlatformToolset>v110</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>Unicode</CharacterSet>

+    <PlatformToolset>v110</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+    <PlatformToolset>v110</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+    <PlatformToolset>v110</PlatformToolset>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />

+  <ImportGroup Label="ExtensionSettings">

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

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+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</GenerateManifest>

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+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">false</GenerateManifest>

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+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" />

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+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

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+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>x86\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)miniunz.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <ProgramDatabaseFile>$(OutDir)miniunz.pdb</ProgramDatabaseFile>

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+  </ItemDefinitionGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\minizip\miniunz.c" />

+  </ItemGroup>

+  <ItemGroup>

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+</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc11/minizip.vcxproj b/compat/zlib/contrib/vstudio/vc11/minizip.vcxproj
new file mode 100644
index 0000000..c93d9e6
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/minizip.vcxproj
@@ -0,0 +1,311 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

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diff --git a/compat/zlib/contrib/vstudio/vc11/testzlib.vcxproj b/compat/zlib/contrib/vstudio/vc11/testzlib.vcxproj
new file mode 100644
index 0000000..6d55954
--- /dev/null
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@@ -0,0 +1,426 @@
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new file mode 100644
index 0000000..9f20c78
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+      <Optimization>Disabled</Optimization>

+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MinimalRebuild>true</MinimalRebuild>

+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeader>

+      </PrecompiledHeader>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <WarningLevel>Level3</WarningLevel>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>x64\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>

+      <SubSystem>Console</SubSystem>

+      <TargetMachine>MachineX64</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">

+    <Midl>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <Optimization>Disabled</Optimization>

+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MinimalRebuild>true</MinimalRebuild>

+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeader>

+      </PrecompiledHeader>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <WarningLevel>Level3</WarningLevel>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>ia64\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>

+      <SubSystem>Console</SubSystem>

+      <TargetMachine>MachineIA64</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">

+    <Midl>

+      <TargetEnvironment>X64</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <Optimization>MaxSpeed</Optimization>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <OmitFramePointers>true</OmitFramePointers>

+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeader>

+      </PrecompiledHeader>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <WarningLevel>Level3</WarningLevel>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>x64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <SubSystem>Console</SubSystem>

+      <OptimizeReferences>true</OptimizeReferences>

+      <EnableCOMDATFolding>true</EnableCOMDATFolding>

+      <TargetMachine>MachineX64</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">

+    <Midl>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <Optimization>MaxSpeed</Optimization>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <OmitFramePointers>true</OmitFramePointers>

+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeader>

+      </PrecompiledHeader>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <WarningLevel>Level3</WarningLevel>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>ia64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <SubSystem>Console</SubSystem>

+      <OptimizeReferences>true</OptimizeReferences>

+      <EnableCOMDATFolding>true</EnableCOMDATFolding>

+      <TargetMachine>MachineIA64</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\testzlib\testzlib.c" />

+  </ItemGroup>

+  <ItemGroup>

+    <ProjectReference Include="zlibvc.vcxproj">

+      <Project>{8fd826f8-3739-44e6-8cc8-997122e53b8d}</Project>

+    </ProjectReference>

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc11/zlib.rc b/compat/zlib/contrib/vstudio/vc11/zlib.rc
new file mode 100644
index 0000000..73f6476
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>

+

+#define IDR_VERSION1  1

+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE

+  FILEVERSION	 1,2,8,0

+  PRODUCTVERSION 1,2,8,0

+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK

+  FILEFLAGS	0

+  FILEOS	VOS_DOS_WINDOWS32

+  FILETYPE	VFT_DLL

+  FILESUBTYPE	0	// not used

+BEGIN

+  BLOCK "StringFileInfo"

+  BEGIN

+    BLOCK "040904E4"

+    //language ID = U.S. English, char set = Windows, Multilingual

+

+    BEGIN

+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"

+      VALUE "FileVersion",	"1.2.8\0"

+      VALUE "InternalName",	"zlib\0"

+      VALUE "OriginalFilename",	"zlibwapi.dll\0"

+      VALUE "ProductName",	"ZLib.DLL\0"

+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"

+      VALUE "LegalCopyright", "(C) 1995-2013 Jean-loup Gailly & Mark Adler\0"

+    END

+  END

+  BLOCK "VarFileInfo"

+  BEGIN

+    VALUE "Translation", 0x0409, 1252

+  END

+END

diff --git a/compat/zlib/contrib/vstudio/vc11/zlibstat.vcxproj b/compat/zlib/contrib/vstudio/vc11/zlibstat.vcxproj
new file mode 100644
index 0000000..806b76a
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlibstat.vcxproj
@@ -0,0 +1,464 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup Label="ProjectConfigurations">

+    <ProjectConfiguration Include="Debug|Itanium">

+      <Configuration>Debug</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|Win32">

+      <Configuration>Debug</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|x64">

+      <Configuration>Debug</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="ReleaseWithoutAsm|Itanium">

+      <Configuration>ReleaseWithoutAsm</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="ReleaseWithoutAsm|Win32">

+      <Configuration>ReleaseWithoutAsm</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="ReleaseWithoutAsm|x64">

+      <Configuration>ReleaseWithoutAsm</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Itanium">

+      <Configuration>Release</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Win32">

+      <Configuration>Release</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|x64">

+      <Configuration>Release</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+  </ItemGroup>

+  <PropertyGroup Label="Globals">

+    <ProjectGuid>{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}</ProjectGuid>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <PlatformToolset>v110</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <PlatformToolset>v110</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <PlatformToolset>v110</PlatformToolset>

+    <CharacterSet>Unicode</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <PlatformToolset>v110</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <PlatformToolset>v110</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <PlatformToolset>v110</PlatformToolset>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />

+  <ImportGroup Label="ExtensionSettings">

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <PropertyGroup Label="UserMacros" />

+  <PropertyGroup>

+    <_ProjectFileVersion>10.0.30128.1</_ProjectFileVersion>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\ZlibStat$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\ZlibStat$(Configuration)\Tmp\</IntDir>

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+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">x86\ZlibStat$(Configuration)\Tmp\</IntDir>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">x86\ZlibStat$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">x86\ZlibStat$(Configuration)\Tmp\</IntDir>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">x64\ZlibStat$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">x64\ZlibStat$(Configuration)\Tmp\</IntDir>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">ia64\ZlibStat$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">ia64\ZlibStat$(Configuration)\Tmp\</IntDir>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">x64\ZlibStat$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">x64\ZlibStat$(Configuration)\Tmp\</IntDir>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ia64\ZlibStat$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ia64\ZlibStat$(Configuration)\Tmp\</IntDir>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'">x64\ZlibStat$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'">x64\ZlibStat$(Configuration)\Tmp\</IntDir>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">ia64\ZlibStat$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">ia64\ZlibStat$(Configuration)\Tmp\</IntDir>

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">AllRules.ruleset</CodeAnalysisRuleSet>

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+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />

+  </PropertyGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">

+    <ClCompile>

+      <Optimization>Disabled</Optimization>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

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+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <DebugInformationFormat>OldStyle</DebugInformationFormat>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

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+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

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+  </ItemDefinitionGroup>

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+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

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+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>

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+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

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+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

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+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

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+      <DebugInformationFormat>OldStyle</DebugInformationFormat>

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+    <ResourceCompile>

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+      <Optimization>Disabled</Optimization>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <DebugInformationFormat>OldStyle</DebugInformationFormat>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">

+    <Midl>

+      <TargetEnvironment>X64</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">

+    <Midl>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'">

+    <Midl>

+      <TargetEnvironment>X64</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">

+    <Midl>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\..\adler32.c" />

+    <ClCompile Include="..\..\..\compress.c" />

+    <ClCompile Include="..\..\..\crc32.c" />

+    <ClCompile Include="..\..\..\deflate.c" />

+    <ClCompile Include="..\..\..\gzclose.c" />

+    <ClCompile Include="..\..\..\gzlib.c" />

+    <ClCompile Include="..\..\..\gzread.c" />

+    <ClCompile Include="..\..\..\gzwrite.c" />

+    <ClCompile Include="..\..\..\infback.c" />

+    <ClCompile Include="..\..\masmx64\inffas8664.c">

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inffast.c" />

+    <ClCompile Include="..\..\..\inflate.c" />

+    <ClCompile Include="..\..\..\inftrees.c" />

+    <ClCompile Include="..\..\minizip\ioapi.c" />

+    <ClCompile Include="..\..\..\trees.c" />

+    <ClCompile Include="..\..\..\uncompr.c" />

+    <ClCompile Include="..\..\minizip\unzip.c" />

+    <ClCompile Include="..\..\minizip\zip.c" />

+    <ClCompile Include="..\..\..\zutil.c" />

+  </ItemGroup>

+  <ItemGroup>

+    <ResourceCompile Include="zlib.rc" />

+  </ItemGroup>

+  <ItemGroup>

+    <None Include="zlibvc.def" />

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc11/zlibvc.def b/compat/zlib/contrib/vstudio/vc11/zlibvc.def
new file mode 100644
index 0000000..6367046
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlibvc.def
@@ -0,0 +1,143 @@
+LIBRARY

+; zlib data compression and ZIP file I/O library

+

+VERSION		1.2.8

+

+EXPORTS

+        adler32                                  @1

+        compress                                 @2

+        crc32                                    @3

+        deflate                                  @4

+        deflateCopy                              @5

+        deflateEnd                               @6

+        deflateInit2_                            @7

+        deflateInit_                             @8

+        deflateParams                            @9

+        deflateReset                             @10

+        deflateSetDictionary                     @11

+        gzclose                                  @12

+        gzdopen                                  @13

+        gzerror                                  @14

+        gzflush                                  @15

+        gzopen                                   @16

+        gzread                                   @17

+        gzwrite                                  @18

+        inflate                                  @19

+        inflateEnd                               @20

+        inflateInit2_                            @21

+        inflateInit_                             @22

+        inflateReset                             @23

+        inflateSetDictionary                     @24

+        inflateSync                              @25

+        uncompress                               @26

+        zlibVersion                              @27

+        gzprintf                                 @28

+        gzputc                                   @29

+        gzgetc                                   @30

+        gzseek                                   @31

+        gzrewind                                 @32

+        gztell                                   @33

+        gzeof                                    @34

+        gzsetparams                              @35

+        zError                                   @36

+        inflateSyncPoint                         @37

+        get_crc_table                            @38

+        compress2                                @39

+        gzputs                                   @40

+        gzgets                                   @41

+        inflateCopy                              @42

+        inflateBackInit_                         @43

+        inflateBack                              @44

+        inflateBackEnd                           @45

+        compressBound                            @46

+        deflateBound                             @47

+        gzclearerr                               @48

+        gzungetc                                 @49

+        zlibCompileFlags                         @50

+        deflatePrime                             @51

+        deflatePending                           @52

+

+        unzOpen                                  @61

+        unzClose                                 @62

+        unzGetGlobalInfo                         @63

+        unzGetCurrentFileInfo                    @64

+        unzGoToFirstFile                         @65

+        unzGoToNextFile                          @66

+        unzOpenCurrentFile                       @67

+        unzReadCurrentFile                       @68

+        unzOpenCurrentFile3                      @69

+        unztell                                  @70

+        unzeof                                   @71

+        unzCloseCurrentFile                      @72

+        unzGetGlobalComment                      @73

+        unzStringFileNameCompare                 @74

+        unzLocateFile                            @75

+        unzGetLocalExtrafield                    @76

+        unzOpen2                                 @77

+        unzOpenCurrentFile2                      @78

+        unzOpenCurrentFilePassword               @79

+

+        zipOpen                                  @80

+        zipOpenNewFileInZip                      @81

+        zipWriteInFileInZip                      @82

+        zipCloseFileInZip                        @83

+        zipClose                                 @84

+        zipOpenNewFileInZip2                     @86

+        zipCloseFileInZipRaw                     @87

+        zipOpen2                                 @88

+        zipOpenNewFileInZip3                     @89

+

+        unzGetFilePos                            @100

+        unzGoToFilePos                           @101

+

+        fill_win32_filefunc                      @110

+

+; zlibwapi v1.2.4 added:

+        fill_win32_filefunc64                   @111

+        fill_win32_filefunc64A                  @112

+        fill_win32_filefunc64W                  @113

+

+        unzOpen64                               @120

+        unzOpen2_64                             @121

+        unzGetGlobalInfo64                      @122

+        unzGetCurrentFileInfo64                 @124

+        unzGetCurrentFileZStreamPos64           @125

+        unztell64                               @126

+        unzGetFilePos64                         @127

+        unzGoToFilePos64                        @128

+

+        zipOpen64                               @130

+        zipOpen2_64                             @131

+        zipOpenNewFileInZip64                   @132

+        zipOpenNewFileInZip2_64                 @133

+        zipOpenNewFileInZip3_64                 @134

+        zipOpenNewFileInZip4_64                 @135

+        zipCloseFileInZipRaw64                  @136

+

+; zlib1 v1.2.4 added:

+        adler32_combine                         @140

+        crc32_combine                           @142

+        deflateSetHeader                        @144

+        deflateTune                             @145

+        gzbuffer                                @146

+        gzclose_r                               @147

+        gzclose_w                               @148

+        gzdirect                                @149

+        gzoffset                                @150

+        inflateGetHeader                        @156

+        inflateMark                             @157

+        inflatePrime                            @158

+        inflateReset2                           @159

+        inflateUndermine                        @160

+

+; zlib1 v1.2.6 added:

+        gzgetc_                                 @161

+        inflateResetKeep                        @163

+        deflateResetKeep                        @164

+

+; zlib1 v1.2.7 added:

+        gzopen_w                                @165

+

+; zlib1 v1.2.8 added:

+        inflateGetDictionary                    @166

+        gzvprintf                               @167

diff --git a/compat/zlib/contrib/vstudio/vc11/zlibvc.sln b/compat/zlib/contrib/vstudio/vc11/zlibvc.sln
new file mode 100644
index 0000000..9fcbafd
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlibvc.sln
@@ -0,0 +1,117 @@
+

+Microsoft Visual Studio Solution File, Format Version 12.00

+# Visual Studio 2012

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"

+EndProject

+Global

+	GlobalSection(SolutionConfigurationPlatforms) = preSolution

+		Debug|Itanium = Debug|Itanium

+		Debug|Win32 = Debug|Win32

+		Debug|x64 = Debug|x64

+		Release|Itanium = Release|Itanium

+		Release|Win32 = Release|Win32

+		Release|x64 = Release|x64

+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium

+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32

+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64

+	EndGlobalSection

+	GlobalSection(ProjectConfigurationPlatforms) = postSolution

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.ActiveCfg = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.ActiveCfg = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.Build.0 = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.Build.0 = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.ActiveCfg = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.Build.0 = Release|x64

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diff --git a/compat/zlib/contrib/vstudio/vc11/zlibvc.vcxproj b/compat/zlib/contrib/vstudio/vc11/zlibvc.vcxproj
new file mode 100644
index 0000000..c65b95f
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlibvc.vcxproj
@@ -0,0 +1,688 @@
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+      <Platform>Itanium</Platform>

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+    <ProjectConfiguration Include="ReleaseWithoutAsm|Win32">

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+    <ProjectConfiguration Include="ReleaseWithoutAsm|x64">

+      <Configuration>ReleaseWithoutAsm</Configuration>

+      <Platform>x64</Platform>

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+    <ProjectConfiguration Include="Release|Itanium">

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+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Win32">

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+    </ProjectConfiguration>

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+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

+      <GenerateMapFile>true</GenerateMapFile>

+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

+      <SubSystem>Windows</SubSystem>

+      <RandomizedBaseAddress>false</RandomizedBaseAddress>

+      <DataExecutionPrevention>

+      </DataExecutionPrevention>

+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

+    </Link>

+    <PreBuildEvent>

+      <Command>cd ..\..\masmx86

+bld_ml32.bat</Command>

+    </PreBuildEvent>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">

+    <Midl>

+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MkTypLibCompatible>true</MkTypLibCompatible>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <TargetEnvironment>X64</TargetEnvironment>

+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>

+    </Midl>

+    <ClCompile>

+      <Optimization>Disabled</Optimization>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <BrowseInformation>

+      </BrowseInformation>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <ResourceCompile>

+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Link>

+      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

+      <GenerateMapFile>true</GenerateMapFile>

+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

+      <SubSystem>Windows</SubSystem>

+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

+      <TargetMachine>MachineX64</TargetMachine>

+    </Link>

+    <PreBuildEvent>

+      <Command>cd ..\..\contrib\masmx64

+bld_ml64.bat</Command>

+    </PreBuildEvent>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">

+    <Midl>

+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MkTypLibCompatible>true</MkTypLibCompatible>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>

+    </Midl>

+    <ClCompile>

+      <Optimization>Disabled</Optimization>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <BrowseInformation>

+      </BrowseInformation>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <ResourceCompile>

+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Link>

+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

+      <GenerateMapFile>true</GenerateMapFile>

+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

+      <SubSystem>Windows</SubSystem>

+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

+      <TargetMachine>MachineIA64</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'">

+    <Midl>

+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MkTypLibCompatible>true</MkTypLibCompatible>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <TargetEnvironment>X64</TargetEnvironment>

+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>

+      <AssemblerOutput>All</AssemblerOutput>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <BrowseInformation>

+      </BrowseInformation>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Link>

+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>

+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

+      <GenerateMapFile>true</GenerateMapFile>

+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

+      <SubSystem>Windows</SubSystem>

+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

+      <TargetMachine>MachineX64</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">

+    <Midl>

+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MkTypLibCompatible>true</MkTypLibCompatible>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>

+      <AssemblerOutput>All</AssemblerOutput>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <BrowseInformation>

+      </BrowseInformation>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Link>

+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>

+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

+      <GenerateMapFile>true</GenerateMapFile>

+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

+      <SubSystem>Windows</SubSystem>

+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

+      <TargetMachine>MachineIA64</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">

+    <Midl>

+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MkTypLibCompatible>true</MkTypLibCompatible>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <TargetEnvironment>X64</TargetEnvironment>

+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>

+      <AssemblerOutput>All</AssemblerOutput>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <BrowseInformation>

+      </BrowseInformation>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Link>

+      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>

+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

+      <GenerateMapFile>true</GenerateMapFile>

+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

+      <SubSystem>Windows</SubSystem>

+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

+      <TargetMachine>MachineX64</TargetMachine>

+    </Link>

+    <PreBuildEvent>

+      <Command>cd ..\..\masmx64

+bld_ml64.bat</Command>

+    </PreBuildEvent>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">

+    <Midl>

+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MkTypLibCompatible>true</MkTypLibCompatible>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>

+      <AssemblerOutput>All</AssemblerOutput>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <BrowseInformation>

+      </BrowseInformation>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Link>

+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>

+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>

+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>

+      <GenerateMapFile>true</GenerateMapFile>

+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>

+      <SubSystem>Windows</SubSystem>

+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>

+      <TargetMachine>MachineIA64</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\..\adler32.c" />

+    <ClCompile Include="..\..\..\compress.c" />

+    <ClCompile Include="..\..\..\crc32.c" />

+    <ClCompile Include="..\..\..\deflate.c" />

+    <ClCompile Include="..\..\..\gzclose.c" />

+    <ClCompile Include="..\..\..\gzlib.c" />

+    <ClCompile Include="..\..\..\gzread.c" />

+    <ClCompile Include="..\..\..\gzwrite.c" />

+    <ClCompile Include="..\..\..\infback.c" />

+    <ClCompile Include="..\..\masmx64\inffas8664.c">

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inffast.c" />

+    <ClCompile Include="..\..\..\inflate.c" />

+    <ClCompile Include="..\..\..\inftrees.c" />

+    <ClCompile Include="..\..\minizip\ioapi.c" />

+    <ClCompile Include="..\..\minizip\iowin32.c" />

+    <ClCompile Include="..\..\..\trees.c" />

+    <ClCompile Include="..\..\..\uncompr.c" />

+    <ClCompile Include="..\..\minizip\unzip.c">

+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+    </ClCompile>

+    <ClCompile Include="..\..\minizip\zip.c">

+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+    </ClCompile>

+    <ClCompile Include="..\..\..\zutil.c" />

+  </ItemGroup>

+  <ItemGroup>

+    <ResourceCompile Include="zlib.rc" />

+  </ItemGroup>

+  <ItemGroup>

+    <None Include="zlibvc.def" />

+  </ItemGroup>

+  <ItemGroup>

+    <ClInclude Include="..\..\..\deflate.h" />

+    <ClInclude Include="..\..\..\infblock.h" />

+    <ClInclude Include="..\..\..\infcodes.h" />

+    <ClInclude Include="..\..\..\inffast.h" />

+    <ClInclude Include="..\..\..\inftrees.h" />

+    <ClInclude Include="..\..\..\infutil.h" />

+    <ClInclude Include="..\..\..\zconf.h" />

+    <ClInclude Include="..\..\..\zlib.h" />

+    <ClInclude Include="..\..\..\zutil.h" />

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc9/zlib.rc b/compat/zlib/contrib/vstudio/vc9/zlib.rc
index 8eca4db..73f6476 100644
--- a/compat/zlib/contrib/vstudio/vc9/zlib.rc
+++ b/compat/zlib/contrib/vstudio/vc9/zlib.rc
@@ -2,8 +2,8 @@
 

 #define IDR_VERSION1  1

 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE

-  FILEVERSION	 1.2.7,0

-  PRODUCTVERSION 1.2.7,0

+  FILEVERSION	 1,2,8,0

+  PRODUCTVERSION 1,2,8,0

   FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK

   FILEFLAGS	0

   FILEOS	VOS_DOS_WINDOWS32

@@ -17,12 +17,12 @@ BEGIN
 

     BEGIN

       VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"

-      VALUE "FileVersion",	"1.2.7\0"

+      VALUE "FileVersion",	"1.2.8\0"

       VALUE "InternalName",	"zlib\0"

-      VALUE "OriginalFilename",	"zlib.dll\0"

+      VALUE "OriginalFilename",	"zlibwapi.dll\0"

       VALUE "ProductName",	"ZLib.DLL\0"

       VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"

-      VALUE "LegalCopyright", "(C) 1995-2012 Jean-loup Gailly & Mark Adler\0"

+      VALUE "LegalCopyright", "(C) 1995-2013 Jean-loup Gailly & Mark Adler\0"

     END

   END

   BLOCK "VarFileInfo"

diff --git a/compat/zlib/contrib/vstudio/vc9/zlibvc.def b/compat/zlib/contrib/vstudio/vc9/zlibvc.def
index 2df8bb3..6367046 100644
--- a/compat/zlib/contrib/vstudio/vc9/zlibvc.def
+++ b/compat/zlib/contrib/vstudio/vc9/zlibvc.def
@@ -1,7 +1,7 @@
 LIBRARY

 ; zlib data compression and ZIP file I/O library

 

-VERSION		1.2.7

+VERSION		1.2.8

 

 EXPORTS

         adler32                                  @1

@@ -133,7 +133,11 @@ EXPORTS
 ; zlib1 v1.2.6 added:

         gzgetc_                                 @161

         inflateResetKeep                        @163

-        deflateResetKeep                        @164
-
-; zlib1 v1.2.7 added:
-        gzopen_w                                @165
+        deflateResetKeep                        @164

+

+; zlib1 v1.2.7 added:

+        gzopen_w                                @165

+

+; zlib1 v1.2.8 added:

+        inflateGetDictionary                    @166

+        gzvprintf                               @167

diff --git a/compat/zlib/deflate.c b/compat/zlib/deflate.c
index 9e4c2cb..6969577 100644
--- a/compat/zlib/deflate.c
+++ b/compat/zlib/deflate.c
@@ -1,5 +1,5 @@
 /* deflate.c -- compress data using the deflation algorithm
- * Copyright (C) 1995-2012 Jean-loup Gailly and Mark Adler
+ * Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -52,7 +52,7 @@
 #include "deflate.h"
 
 const char deflate_copyright[] =
-   " deflate 1.2.7 Copyright 1995-2012 Jean-loup Gailly and Mark Adler ";
+   " deflate 1.2.8 Copyright 1995-2013 Jean-loup Gailly and Mark Adler ";
 /*
   If you use the zlib library in a product, an acknowledgment is welcome
   in the documentation of your product. If for some reason you cannot
@@ -305,7 +305,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
     if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
         s->pending_buf == Z_NULL) {
         s->status = FINISH_STATE;
-        strm->msg = (char*)ERR_MSG(Z_MEM_ERROR);
+        strm->msg = ERR_MSG(Z_MEM_ERROR);
         deflateEnd (strm);
         return Z_MEM_ERROR;
     }
@@ -329,7 +329,7 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
     uInt str, n;
     int wrap;
     unsigned avail;
-    unsigned char *next;
+    z_const unsigned char *next;
 
     if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL)
         return Z_STREAM_ERROR;
@@ -359,7 +359,7 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
     avail = strm->avail_in;
     next = strm->next_in;
     strm->avail_in = dictLength;
-    strm->next_in = (Bytef *)dictionary;
+    strm->next_in = (z_const Bytef *)dictionary;
     fill_window(s);
     while (s->lookahead >= MIN_MATCH) {
         str = s->strstart;
@@ -513,6 +513,8 @@ int ZEXPORT deflateParams(strm, level, strategy)
         strm->total_in != 0) {
         /* Flush the last buffer: */
         err = deflate(strm, Z_BLOCK);
+        if (err == Z_BUF_ERROR && s->pending == 0)
+            err = Z_OK;
     }
     if (s->level != level) {
         s->level = level;
diff --git a/compat/zlib/deflate.h b/compat/zlib/deflate.h
index fbac44d..ce0299e 100644
--- a/compat/zlib/deflate.h
+++ b/compat/zlib/deflate.h
@@ -104,7 +104,7 @@ typedef struct internal_state {
     int   wrap;          /* bit 0 true for zlib, bit 1 true for gzip */
     gz_headerp  gzhead;  /* gzip header information to write */
     uInt   gzindex;      /* where in extra, name, or comment */
-    Byte  method;        /* STORED (for zip only) or DEFLATED */
+    Byte  method;        /* can only be DEFLATED */
     int   last_flush;    /* value of flush param for previous deflate call */
 
                 /* used by deflate.c: */
diff --git a/compat/zlib/examples/enough.c b/compat/zlib/examples/enough.c
index c40410b..b991144 100644
--- a/compat/zlib/examples/enough.c
+++ b/compat/zlib/examples/enough.c
@@ -1,7 +1,7 @@
 /* enough.c -- determine the maximum size of inflate's Huffman code tables over
  * all possible valid and complete Huffman codes, subject to a length limit.
- * Copyright (C) 2007, 2008 Mark Adler
- * Version 1.3  17 February 2008  Mark Adler
+ * Copyright (C) 2007, 2008, 2012 Mark Adler
+ * Version 1.4  18 August 2012  Mark Adler
  */
 
 /* Version history:
@@ -14,6 +14,9 @@
    1.3  17 Feb 2008  Add argument for initial root table size
                      Fix bug for initial root table size == max - 1
                      Use a macro to compute the history index
+   1.4  18 Aug 2012  Avoid shifts more than bits in type (caused endless loop!)
+                     Clean up comparisons of different types
+                     Clean up code indentation
  */
 
 /*
@@ -236,8 +239,8 @@ local big_t count(int syms, int len, int left)
     for (use = least; use <= most; use++) {
         got = count(syms - use, len + 1, (left - use) << 1);
         sum += got;
-        if (got == -1 || sum < got)         /* overflow */
-            return -1;
+        if (got == (big_t)0 - 1 || sum < got)   /* overflow */
+            return (big_t)0 - 1;
     }
 
     /* verify that all recursive calls are productive */
@@ -458,6 +461,7 @@ int main(int argc, char **argv)
     int n;              /* number of symbols to code for this run */
     big_t got;          /* return value of count() */
     big_t sum;          /* accumulated number of codes over n */
+    code_t word;        /* for counting bits in code_t */
 
     /* set up globals for cleanup() */
     code = NULL;
@@ -466,19 +470,19 @@ int main(int argc, char **argv)
 
     /* get arguments -- default to the deflate literal/length code */
     syms = 286;
-        root = 9;
+    root = 9;
     max = 15;
     if (argc > 1) {
         syms = atoi(argv[1]);
         if (argc > 2) {
             root = atoi(argv[2]);
-                        if (argc > 3)
-                                max = atoi(argv[3]);
-                }
+            if (argc > 3)
+                max = atoi(argv[3]);
+        }
     }
     if (argc > 4 || syms < 2 || root < 1 || max < 1) {
         fputs("invalid arguments, need: [sym >= 2 [root >= 1 [max >= 1]]]\n",
-                          stderr);
+              stderr);
         return 1;
     }
 
@@ -487,18 +491,17 @@ int main(int argc, char **argv)
         max = syms - 1;
 
     /* determine the number of bits in a code_t */
-    n = 0;
-    while (((code_t)1 << n) != 0)
-        n++;
+    for (n = 0, word = 1; word; n++, word <<= 1)
+        ;
 
     /* make sure that the calculation of most will not overflow */
-    if (max > n || syms - 2 >= (((code_t)0 - 1) >> (max - 1))) {
+    if (max > n || (code_t)(syms - 2) >= (((code_t)0 - 1) >> (max - 1))) {
         fputs("abort: code length too long for internal types\n", stderr);
         return 1;
     }
 
     /* reject impossible code requests */
-    if (syms - 1 > ((code_t)1 << max) - 1) {
+    if ((code_t)(syms - 1) > ((code_t)1 << max) - 1) {
         fprintf(stderr, "%d symbols cannot be coded in %d bits\n",
                 syms, max);
         return 1;
@@ -532,7 +535,7 @@ int main(int argc, char **argv)
     for (n = 2; n <= syms; n++) {
         got = count(n, 1, 2);
         sum += got;
-        if (got == -1 || sum < got) {       /* overflow */
+        if (got == (big_t)0 - 1 || sum < got) {     /* overflow */
             fputs("abort: can't count that high!\n", stderr);
             cleanup();
             return 1;
@@ -556,9 +559,9 @@ int main(int argc, char **argv)
     }
 
     /* find and show maximum inflate table usage */
-        if (root > max)                 /* reduce root to max length */
-                root = max;
-    if (syms < ((code_t)1 << (root + 1)))
+    if (root > max)                 /* reduce root to max length */
+        root = max;
+    if ((code_t)syms < ((code_t)1 << (root + 1)))
         enough(syms);
     else
         puts("cannot handle minimum code lengths > root");
diff --git a/compat/zlib/examples/gun.c b/compat/zlib/examples/gun.c
index 72b0882..89e484f 100644
--- a/compat/zlib/examples/gun.c
+++ b/compat/zlib/examples/gun.c
@@ -1,7 +1,7 @@
 /* gun.c -- simple gunzip to give an example of the use of inflateBack()
- * Copyright (C) 2003, 2005, 2008, 2010 Mark Adler
+ * Copyright (C) 2003, 2005, 2008, 2010, 2012 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
-   Version 1.6  17 January 2010  Mark Adler */
+   Version 1.7  12 August 2012  Mark Adler */
 
 /* Version history:
    1.0  16 Feb 2003  First version for testing of inflateBack()
@@ -18,6 +18,7 @@
    1.4   8 Dec 2006  LZW decompression speed improvements
    1.5   9 Feb 2008  Avoid warning in latest version of gcc
    1.6  17 Jan 2010  Avoid signed/unsigned comparison warnings
+   1.7  12 Aug 2012  Update for z_const usage in zlib 1.2.8
  */
 
 /*
@@ -85,7 +86,7 @@ struct ind {
 /* Load input buffer, assumed to be empty, and return bytes loaded and a
    pointer to them.  read() is called until the buffer is full, or until it
    returns end-of-file or error.  Return 0 on error. */
-local unsigned in(void *in_desc, unsigned char **buf)
+local unsigned in(void *in_desc, z_const unsigned char **buf)
 {
     int ret;
     unsigned len;
@@ -196,7 +197,7 @@ unsigned char match[65280 + 2];         /* buffer for reversed match or gzip
    file, read error, or write error (a write error indicated by strm->next_in
    not equal to Z_NULL), or Z_DATA_ERROR for invalid input.
  */
-local int lunpipe(unsigned have, unsigned char *next, struct ind *indp,
+local int lunpipe(unsigned have, z_const unsigned char *next, struct ind *indp,
                   int outfile, z_stream *strm)
 {
     int last;                   /* last byte read by NEXT(), or -1 if EOF */
@@ -383,7 +384,7 @@ local int gunpipe(z_stream *strm, int infile, int outfile)
 {
     int ret, first, last;
     unsigned have, flags, len;
-    unsigned char *next = NULL;
+    z_const unsigned char *next = NULL;
     struct ind ind, *indp;
     struct outd outd;
 
diff --git a/compat/zlib/examples/gzappend.c b/compat/zlib/examples/gzappend.c
index e9e878e..662dec3 100644
--- a/compat/zlib/examples/gzappend.c
+++ b/compat/zlib/examples/gzappend.c
@@ -1,7 +1,7 @@
 /* gzappend -- command to append to a gzip file
 
-  Copyright (C) 2003 Mark Adler, all rights reserved
-  version 1.1, 4 Nov 2003
+  Copyright (C) 2003, 2012 Mark Adler, all rights reserved
+  version 1.2, 11 Oct 2012
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the author be held liable for any damages
@@ -39,6 +39,8 @@
  *                      - Keep gzip file clean on appended file read errors
  *                      - Use in-place rotate instead of auxiliary buffer
  *                        (Why you ask?  Because it was fun to write!)
+ * 1.2  11 Oct 2012     - Fix for proper z_const usage
+ *                      - Check for input buffer malloc failure
  */
 
 /*
@@ -170,7 +172,7 @@ typedef struct {
     int size;                   /* 1 << size is bytes in buf */
     unsigned left;              /* bytes available at next */
     unsigned char *buf;         /* buffer */
-    unsigned char *next;        /* next byte in buffer */
+    z_const unsigned char *next;    /* next byte in buffer */
     char *name;                 /* file name for error messages */
 } file;
 
@@ -399,14 +401,14 @@ local void gztack(char *name, int gd, z_stream *strm, int last)
     }
 
     /* allocate buffers */
-    in = fd == -1 ? NULL : malloc(CHUNK);
+    in = malloc(CHUNK);
     out = malloc(CHUNK);
-    if (out == NULL) bye("out of memory", "");
+    if (in == NULL || out == NULL) bye("out of memory", "");
 
     /* compress input file and append to gzip file */
     do {
         /* get more input */
-        len = fd == -1 ? 0 : read(fd, in, CHUNK);
+        len = read(fd, in, CHUNK);
         if (len == -1) {
             fprintf(stderr,
                     "gzappend warning: error reading %s, skipping rest ...\n",
@@ -453,7 +455,7 @@ local void gztack(char *name, int gd, z_stream *strm, int last)
 
     /* clean up and return */
     free(out);
-    if (in != NULL) free(in);
+    free(in);
     if (fd > 0) close(fd);
 }
 
@@ -467,11 +469,13 @@ int main(int argc, char **argv)
     z_stream strm;
 
     /* ignore command name */
-    argv++;
+    argc--; argv++;
 
     /* provide usage if no arguments */
     if (*argv == NULL) {
-        printf("gzappend 1.1 (4 Nov 2003) Copyright (C) 2003 Mark Adler\n");
+        printf(
+            "gzappend 1.2 (11 Oct 2012) Copyright (C) 2003, 2012 Mark Adler\n"
+               );
         printf(
             "usage: gzappend [-level] file.gz [ addthis [ andthis ... ]]\n");
         return 0;
diff --git a/compat/zlib/examples/gzjoin.c b/compat/zlib/examples/gzjoin.c
index 129347c..89e8098 100644
--- a/compat/zlib/examples/gzjoin.c
+++ b/compat/zlib/examples/gzjoin.c
@@ -1,7 +1,7 @@
 /* gzjoin -- command to join gzip files into one gzip file
 
-  Copyright (C) 2004 Mark Adler, all rights reserved
-  version 1.0, 11 Dec 2004
+  Copyright (C) 2004, 2005, 2012 Mark Adler, all rights reserved
+  version 1.2, 14 Aug 2012
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the author be held liable for any damages
@@ -27,6 +27,7 @@
  *
  * 1.0  11 Dec 2004     - First version
  * 1.1  12 Jun 2005     - Changed ssize_t to long for portability
+ * 1.2  14 Aug 2012     - Clean up for z_const usage
  */
 
 /*
@@ -308,7 +309,7 @@ local void gzcopy(char *name, int clr, unsigned long *crc, unsigned long *tot,
     /* inflate and copy compressed data, clear last-block bit if requested */
     len = 0;
     zpull(&strm, in);
-    start = strm.next_in;
+    start = in->next;
     last = start[0] & 1;
     if (last && clr)
         start[0] &= ~1;
@@ -351,7 +352,7 @@ local void gzcopy(char *name, int clr, unsigned long *crc, unsigned long *tot,
                 pos = 0x100 >> pos;
                 last = strm.next_in[-1] & pos;
                 if (last && clr)
-                    strm.next_in[-1] &= ~pos;
+                    in->buf[strm.next_in - in->buf - 1] &= ~pos;
             }
             else {
                 /* next last-block bit is in next unused byte */
@@ -364,14 +365,14 @@ local void gzcopy(char *name, int clr, unsigned long *crc, unsigned long *tot,
                 }
                 last = strm.next_in[0] & 1;
                 if (last && clr)
-                    strm.next_in[0] &= ~1;
+                    in->buf[strm.next_in - in->buf] &= ~1;
             }
         }
     }
 
     /* update buffer with unused input */
     in->left = strm.avail_in;
-    in->next = strm.next_in;
+    in->next = in->buf + (strm.next_in - in->buf);
 
     /* copy used input, write empty blocks to get to byte boundary */
     pos = strm.data_type & 7;
diff --git a/compat/zlib/examples/gzlog.c b/compat/zlib/examples/gzlog.c
index d70aaca..922f878 100644
--- a/compat/zlib/examples/gzlog.c
+++ b/compat/zlib/examples/gzlog.c
@@ -1,8 +1,8 @@
 /*
  * gzlog.c
- * Copyright (C) 2004, 2008 Mark Adler, all rights reserved
+ * Copyright (C) 2004, 2008, 2012 Mark Adler, all rights reserved
  * For conditions of distribution and use, see copyright notice in gzlog.h
- * version 2.0, 25 Apr 2008
+ * version 2.2, 14 Aug 2012
  */
 
 /*
@@ -750,7 +750,8 @@ local int log_recover(struct log *log, int op)
         strcpy(log->end, ".add");
         if (stat(log->path, &st) == 0 && st.st_size) {
             len = (size_t)(st.st_size);
-            if (len != st.st_size || (data = malloc(st.st_size)) == NULL) {
+            if ((off_t)len != st.st_size ||
+                    (data = malloc(st.st_size)) == NULL) {
                 log_log(log, op, "allocation failure");
                 return -2;
             }
@@ -758,7 +759,7 @@ local int log_recover(struct log *log, int op)
                 log_log(log, op, ".add file read failure");
                 return -1;
             }
-            ret = read(fd, data, len) != len;
+            ret = (size_t)read(fd, data, len) != len;
             close(fd);
             if (ret) {
                 log_log(log, op, ".add file read failure");
@@ -913,7 +914,7 @@ int gzlog_compress(gzlog *logd)
     struct log *log = logd;
 
     /* check arguments */
-    if (log == NULL || strcmp(log->id, LOGID) || len < 0)
+    if (log == NULL || strcmp(log->id, LOGID))
         return -3;
 
     /* see if we lost the lock -- if so get it again and reload the extra
@@ -952,7 +953,7 @@ int gzlog_compress(gzlog *logd)
         fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
         if (fd < 0)
             break;
-        ret = write(fd, data, len) != len;
+        ret = (size_t)write(fd, data, len) != len;
         if (ret | close(fd))
             break;
         log_touch(log);
@@ -963,7 +964,7 @@ int gzlog_compress(gzlog *logd)
         if (fd < 0)
             break;
         next = DICT > len ? len : DICT;
-        ret = write(fd, (char *)data + len - next, next) != next;
+        ret = (size_t)write(fd, (char *)data + len - next, next) != next;
         if (ret | close(fd))
             break;
         log_touch(log);
@@ -997,9 +998,9 @@ int gzlog_write(gzlog *logd, void *data, size_t len)
     struct log *log = logd;
 
     /* check arguments */
-    if (log == NULL || strcmp(log->id, LOGID) || len < 0)
+    if (log == NULL || strcmp(log->id, LOGID))
         return -3;
-    if (data == NULL || len == 0)
+    if (data == NULL || len <= 0)
         return 0;
 
     /* see if we lost the lock -- if so get it again and reload the extra
@@ -1013,7 +1014,7 @@ int gzlog_write(gzlog *logd, void *data, size_t len)
     fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
     if (fd < 0)
         return -1;
-    ret = write(fd, data, len) != len;
+    ret = (size_t)write(fd, data, len) != len;
     if (ret | close(fd))
         return -1;
     log_touch(log);
diff --git a/compat/zlib/examples/gzlog.h b/compat/zlib/examples/gzlog.h
index c461426..86f0cec 100644
--- a/compat/zlib/examples/gzlog.h
+++ b/compat/zlib/examples/gzlog.h
@@ -1,6 +1,6 @@
 /* gzlog.h
-  Copyright (C) 2004, 2008 Mark Adler, all rights reserved
-  version 2.0, 25 Apr 2008
+  Copyright (C) 2004, 2008, 2012 Mark Adler, all rights reserved
+  version 2.2, 14 Aug 2012
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the author be held liable for any damages
@@ -27,6 +27,8 @@
                      Interface changed slightly in that now path is a prefix
                      Compression now occurs as needed during gzlog_write()
                      gzlog_write() now always leaves the log file as valid gzip
+   2.1   8 Jul 2012  Fix argument checks in gzlog_compress() and gzlog_write()
+   2.2  14 Aug 2012  Clean up signed comparisons
  */
 
 /*
diff --git a/compat/zlib/examples/zran.c b/compat/zlib/examples/zran.c
index 617a130..278f9ad 100644
--- a/compat/zlib/examples/zran.c
+++ b/compat/zlib/examples/zran.c
@@ -1,7 +1,12 @@
 /* zran.c -- example of zlib/gzip stream indexing and random access
- * Copyright (C) 2005 Mark Adler
+ * Copyright (C) 2005, 2012 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
-   Version 1.0  29 May 2005  Mark Adler */
+   Version 1.1  29 Sep 2012  Mark Adler */
+
+/* Version History:
+ 1.0  29 May 2005  First version
+ 1.1  29 Sep 2012  Fix memory reallocation error
+ */
 
 /* Illustrate the use of Z_BLOCK, inflatePrime(), and inflateSetDictionary()
    for random access of a compressed file.  A file containing a zlib or gzip
@@ -221,7 +226,7 @@ local int build_index(FILE *in, off_t span, struct access **built)
 
     /* clean up and return index (release unused entries in list) */
     (void)inflateEnd(&strm);
-    index = realloc(index, sizeof(struct point) * index->have);
+    index->list = realloc(index->list, sizeof(struct point) * index->have);
     index->size = index->have;
     *built = index;
     return index->size;
diff --git a/compat/zlib/gzguts.h b/compat/zlib/gzguts.h
index ee3f281..d87659d 100644
--- a/compat/zlib/gzguts.h
+++ b/compat/zlib/gzguts.h
@@ -1,5 +1,5 @@
 /* gzguts.h -- zlib internal header definitions for gz* operations
- * Copyright (C) 2004, 2005, 2010, 2011, 2012 Mark Adler
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -35,6 +35,13 @@
 #  include <io.h>
 #endif
 
+#ifdef WINAPI_FAMILY
+#  define open _open
+#  define read _read
+#  define write _write
+#  define close _close
+#endif
+
 #ifdef NO_DEFLATE       /* for compatibility with old definition */
 #  define NO_GZCOMPRESS
 #endif
@@ -60,7 +67,7 @@
 #ifndef HAVE_VSNPRINTF
 #  ifdef MSDOS
 /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
- but for now we just assume it doesn't. */
+   but for now we just assume it doesn't. */
 #    define NO_vsnprintf
 #  endif
 #  ifdef __TURBOC__
@@ -88,6 +95,14 @@
 #  endif
 #endif
 
+/* unlike snprintf (which is required in C99, yet still not supported by
+   Microsoft more than a decade later!), _snprintf does not guarantee null
+   termination of the result -- however this is only used in gzlib.c where
+   the result is assured to fit in the space provided */
+#ifdef _MSC_VER
+#  define snprintf _snprintf
+#endif
+
 #ifndef local
 #  define local static
 #endif
@@ -127,7 +142,8 @@
 #  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
 #endif
 
-/* default i/o buffer size -- double this for output when reading */
+/* default i/o buffer size -- double this for output when reading (this and
+   twice this must be able to fit in an unsigned type) */
 #define GZBUFSIZE 8192
 
 /* gzip modes, also provide a little integrity check on the passed structure */
diff --git a/compat/zlib/gzlib.c b/compat/zlib/gzlib.c
index ca55c6e..fae202e 100644
--- a/compat/zlib/gzlib.c
+++ b/compat/zlib/gzlib.c
@@ -1,5 +1,5 @@
 /* gzlib.c -- zlib functions common to reading and writing gzip files
- * Copyright (C) 2004, 2010, 2011, 2012 Mark Adler
+ * Copyright (C) 2004, 2010, 2011, 2012, 2013 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -108,7 +108,7 @@ local gzFile gz_open(path, fd, mode)
         return NULL;
 
     /* allocate gzFile structure to return */
-    state = malloc(sizeof(gz_state));
+    state = (gz_statep)malloc(sizeof(gz_state));
     if (state == NULL)
         return NULL;
     state->size = 0;            /* no buffers allocated yet */
@@ -162,8 +162,10 @@ local gzFile gz_open(path, fd, mode)
                 break;
             case 'F':
                 state->strategy = Z_FIXED;
+                break;
             case 'T':
                 state->direct = 1;
+                break;
             default:        /* could consider as an error, but just ignore */
                 ;
             }
@@ -194,8 +196,8 @@ local gzFile gz_open(path, fd, mode)
     }
     else
 #endif
-        len = strlen(path);
-    state->path = malloc(len + 1);
+        len = strlen((const char *)path);
+    state->path = (char *)malloc(len + 1);
     if (state->path == NULL) {
         free(state);
         return NULL;
@@ -208,7 +210,11 @@ local gzFile gz_open(path, fd, mode)
             *(state->path) = 0;
     else
 #endif
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+        snprintf(state->path, len + 1, "%s", (const char *)path);
+#else
         strcpy(state->path, path);
+#endif
 
     /* compute the flags for open() */
     oflag =
@@ -236,7 +242,7 @@ local gzFile gz_open(path, fd, mode)
 #ifdef _WIN32
         fd == -2 ? _wopen(path, oflag, 0666) :
 #endif
-        open(path, oflag, 0666));
+        open((const char *)path, oflag, 0666));
     if (state->fd == -1) {
         free(state->path);
         free(state);
@@ -282,9 +288,13 @@ gzFile ZEXPORT gzdopen(fd, mode)
     char *path;         /* identifier for error messages */
     gzFile gz;
 
-    if (fd == -1 || (path = malloc(7 + 3 * sizeof(int))) == NULL)
+    if (fd == -1 || (path = (char *)malloc(7 + 3 * sizeof(int))) == NULL)
         return NULL;
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(path, 7 + 3 * sizeof(int), "<fd:%d>", fd); /* for debugging */
+#else
     sprintf(path, "<fd:%d>", fd);   /* for debugging */
+#endif
     gz = gz_open(path, fd, mode);
     free(path);
     return gz;
@@ -531,7 +541,8 @@ const char * ZEXPORT gzerror(file, errnum)
     /* return error information */
     if (errnum != NULL)
         *errnum = state->err;
-    return state->msg == NULL ? "" : state->msg;
+    return state->err == Z_MEM_ERROR ? "out of memory" :
+                                       (state->msg == NULL ? "" : state->msg);
 }
 
 /* -- see zlib.h -- */
@@ -582,21 +593,24 @@ void ZLIB_INTERNAL gz_error(state, err, msg)
     if (msg == NULL)
         return;
 
-    /* for an out of memory error, save as static string */
-    if (err == Z_MEM_ERROR) {
-        state->msg = (char *)msg;
+    /* for an out of memory error, return literal string when requested */
+    if (err == Z_MEM_ERROR)
         return;
-    }
 
     /* construct error message with path */
-    if ((state->msg = malloc(strlen(state->path) + strlen(msg) + 3)) == NULL) {
+    if ((state->msg = (char *)malloc(strlen(state->path) + strlen(msg) + 3)) ==
+            NULL) {
         state->err = Z_MEM_ERROR;
-        state->msg = (char *)"out of memory";
         return;
     }
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(state->msg, strlen(state->path) + strlen(msg) + 3,
+             "%s%s%s", state->path, ": ", msg);
+#else
     strcpy(state->msg, state->path);
     strcat(state->msg, ": ");
     strcat(state->msg, msg);
+#endif
     return;
 }
 
diff --git a/compat/zlib/gzread.c b/compat/zlib/gzread.c
index 3493d34..bf4538e 100644
--- a/compat/zlib/gzread.c
+++ b/compat/zlib/gzread.c
@@ -1,5 +1,5 @@
 /* gzread.c -- zlib functions for reading gzip files
- * Copyright (C) 2004, 2005, 2010, 2011, 2012 Mark Adler
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -58,7 +58,8 @@ local int gz_avail(state)
         return -1;
     if (state->eof == 0) {
         if (strm->avail_in) {       /* copy what's there to the start */
-            unsigned char *p = state->in, *q = strm->next_in;
+            unsigned char *p = state->in;
+            unsigned const char *q = strm->next_in;
             unsigned n = strm->avail_in;
             do {
                 *p++ = *q++;
@@ -90,8 +91,8 @@ local int gz_look(state)
     /* allocate read buffers and inflate memory */
     if (state->size == 0) {
         /* allocate buffers */
-        state->in = malloc(state->want);
-        state->out = malloc(state->want << 1);
+        state->in = (unsigned char *)malloc(state->want);
+        state->out = (unsigned char *)malloc(state->want << 1);
         if (state->in == NULL || state->out == NULL) {
             if (state->out != NULL)
                 free(state->out);
@@ -352,14 +353,14 @@ int ZEXPORT gzread(file, buf, len)
 
         /* large len -- read directly into user buffer */
         else if (state->how == COPY) {      /* read directly */
-            if (gz_load(state, buf, len, &n) == -1)
+            if (gz_load(state, (unsigned char *)buf, len, &n) == -1)
                 return -1;
         }
 
         /* large len -- decompress directly into user buffer */
         else {  /* state->how == GZIP */
             strm->avail_out = len;
-            strm->next_out = buf;
+            strm->next_out = (unsigned char *)buf;
             if (gz_decomp(state) == -1)
                 return -1;
             n = state->x.have;
@@ -378,7 +379,11 @@ int ZEXPORT gzread(file, buf, len)
 }
 
 /* -- see zlib.h -- */
-#undef gzgetc
+#ifdef Z_PREFIX_SET
+#  undef z_gzgetc
+#else
+#  undef gzgetc
+#endif
 int ZEXPORT gzgetc(file)
     gzFile file;
 {
@@ -518,7 +523,7 @@ char * ZEXPORT gzgets(file, buf, len)
 
         /* look for end-of-line in current output buffer */
         n = state->x.have > left ? left : state->x.have;
-        eol = memchr(state->x.next, '\n', n);
+        eol = (unsigned char *)memchr(state->x.next, '\n', n);
         if (eol != NULL)
             n = (unsigned)(eol - state->x.next) + 1;
 
diff --git a/compat/zlib/gzwrite.c b/compat/zlib/gzwrite.c
index 27cb342..aa767fb 100644
--- a/compat/zlib/gzwrite.c
+++ b/compat/zlib/gzwrite.c
@@ -1,5 +1,5 @@
 /* gzwrite.c -- zlib functions for writing gzip files
- * Copyright (C) 2004, 2005, 2010, 2011, 2012 Mark Adler
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -19,7 +19,7 @@ local int gz_init(state)
     z_streamp strm = &(state->strm);
 
     /* allocate input buffer */
-    state->in = malloc(state->want);
+    state->in = (unsigned char *)malloc(state->want);
     if (state->in == NULL) {
         gz_error(state, Z_MEM_ERROR, "out of memory");
         return -1;
@@ -28,7 +28,7 @@ local int gz_init(state)
     /* only need output buffer and deflate state if compressing */
     if (!state->direct) {
         /* allocate output buffer */
-        state->out = malloc(state->want);
+        state->out = (unsigned char *)malloc(state->want);
         if (state->out == NULL) {
             free(state->in);
             gz_error(state, Z_MEM_ERROR, "out of memory");
@@ -168,7 +168,6 @@ int ZEXPORT gzwrite(file, buf, len)
     unsigned len;
 {
     unsigned put = len;
-    unsigned n;
     gz_statep state;
     z_streamp strm;
 
@@ -208,16 +207,19 @@ int ZEXPORT gzwrite(file, buf, len)
     if (len < state->size) {
         /* copy to input buffer, compress when full */
         do {
+            unsigned have, copy;
+
             if (strm->avail_in == 0)
                 strm->next_in = state->in;
-            n = state->size - strm->avail_in;
-            if (n > len)
-                n = len;
-            memcpy(strm->next_in + strm->avail_in, buf, n);
-            strm->avail_in += n;
-            state->x.pos += n;
-            buf = (char *)buf + n;
-            len -= n;
+            have = (unsigned)((strm->next_in + strm->avail_in) - state->in);
+            copy = state->size - have;
+            if (copy > len)
+                copy = len;
+            memcpy(state->in + have, buf, copy);
+            strm->avail_in += copy;
+            state->x.pos += copy;
+            buf = (const char *)buf + copy;
+            len -= copy;
             if (len && gz_comp(state, Z_NO_FLUSH) == -1)
                 return 0;
         } while (len);
@@ -229,7 +231,7 @@ int ZEXPORT gzwrite(file, buf, len)
 
         /* directly compress user buffer to file */
         strm->avail_in = len;
-        strm->next_in = (voidp)buf;
+        strm->next_in = (z_const Bytef *)buf;
         state->x.pos += len;
         if (gz_comp(state, Z_NO_FLUSH) == -1)
             return 0;
@@ -244,6 +246,7 @@ int ZEXPORT gzputc(file, c)
     gzFile file;
     int c;
 {
+    unsigned have;
     unsigned char buf[1];
     gz_statep state;
     z_streamp strm;
@@ -267,12 +270,16 @@ int ZEXPORT gzputc(file, c)
 
     /* try writing to input buffer for speed (state->size == 0 if buffer not
        initialized) */
-    if (strm->avail_in < state->size) {
+    if (state->size) {
         if (strm->avail_in == 0)
             strm->next_in = state->in;
-        strm->next_in[strm->avail_in++] = c;
-        state->x.pos++;
-        return c & 0xff;
+        have = (unsigned)((strm->next_in + strm->avail_in) - state->in);
+        if (have < state->size) {
+            state->in[have] = c;
+            strm->avail_in++;
+            state->x.pos++;
+            return c & 0xff;
+        }
     }
 
     /* no room in buffer or not initialized, use gz_write() */
@@ -300,12 +307,11 @@ int ZEXPORT gzputs(file, str)
 #include <stdarg.h>
 
 /* -- see zlib.h -- */
-int ZEXPORTVA gzprintf (gzFile file, const char *format, ...)
+int ZEXPORTVA gzvprintf(gzFile file, const char *format, va_list va)
 {
     int size, len;
     gz_statep state;
     z_streamp strm;
-    va_list va;
 
     /* get internal structure */
     if (file == NULL)
@@ -335,25 +341,20 @@ int ZEXPORTVA gzprintf (gzFile file, const char *format, ...)
     /* do the printf() into the input buffer, put length in len */
     size = (int)(state->size);
     state->in[size - 1] = 0;
-    va_start(va, format);
 #ifdef NO_vsnprintf
 #  ifdef HAS_vsprintf_void
     (void)vsprintf((char *)(state->in), format, va);
-    va_end(va);
     for (len = 0; len < size; len++)
         if (state->in[len] == 0) break;
 #  else
     len = vsprintf((char *)(state->in), format, va);
-    va_end(va);
 #  endif
 #else
 #  ifdef HAS_vsnprintf_void
     (void)vsnprintf((char *)(state->in), size, format, va);
-    va_end(va);
     len = strlen((char *)(state->in));
 #  else
     len = vsnprintf((char *)(state->in), size, format, va);
-    va_end(va);
 #  endif
 #endif
 
@@ -368,6 +369,17 @@ int ZEXPORTVA gzprintf (gzFile file, const char *format, ...)
     return len;
 }
 
+int ZEXPORTVA gzprintf(gzFile file, const char *format, ...)
+{
+    va_list va;
+    int ret;
+
+    va_start(va, format);
+    ret = gzvprintf(file, format, va);
+    va_end(va);
+    return ret;
+}
+
 #else /* !STDC && !Z_HAVE_STDARG_H */
 
 /* -- see zlib.h -- */
@@ -547,9 +559,9 @@ int ZEXPORT gzclose_w(file)
     }
 
     /* flush, free memory, and close file */
+    if (gz_comp(state, Z_FINISH) == -1)
+        ret = state->err;
     if (state->size) {
-        if (gz_comp(state, Z_FINISH) == -1)
-            ret = state->err;
         if (!state->direct) {
             (void)deflateEnd(&(state->strm));
             free(state->out);
diff --git a/compat/zlib/infback.c b/compat/zlib/infback.c
index 981aff1..f3833c2 100644
--- a/compat/zlib/infback.c
+++ b/compat/zlib/infback.c
@@ -255,7 +255,7 @@ out_func out;
 void FAR *out_desc;
 {
     struct inflate_state FAR *state;
-    unsigned char FAR *next;    /* next input */
+    z_const unsigned char FAR *next;    /* next input */
     unsigned char FAR *put;     /* next output */
     unsigned have, left;        /* available input and output */
     unsigned long hold;         /* bit buffer */
diff --git a/compat/zlib/inffast.c b/compat/zlib/inffast.c
index 2f1d60b..bda59ce 100644
--- a/compat/zlib/inffast.c
+++ b/compat/zlib/inffast.c
@@ -1,5 +1,5 @@
 /* inffast.c -- fast decoding
- * Copyright (C) 1995-2008, 2010 Mark Adler
+ * Copyright (C) 1995-2008, 2010, 2013 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -69,8 +69,8 @@ z_streamp strm;
 unsigned start;         /* inflate()'s starting value for strm->avail_out */
 {
     struct inflate_state FAR *state;
-    unsigned char FAR *in;      /* local strm->next_in */
-    unsigned char FAR *last;    /* while in < last, enough input available */
+    z_const unsigned char FAR *in;      /* local strm->next_in */
+    z_const unsigned char FAR *last;    /* have enough input while in < last */
     unsigned char FAR *out;     /* local strm->next_out */
     unsigned char FAR *beg;     /* inflate()'s initial strm->next_out */
     unsigned char FAR *end;     /* while out < end, enough space available */
diff --git a/compat/zlib/inflate.c b/compat/zlib/inflate.c
index 47418a1..870f89b 100644
--- a/compat/zlib/inflate.c
+++ b/compat/zlib/inflate.c
@@ -93,11 +93,12 @@
 
 /* function prototypes */
 local void fixedtables OF((struct inflate_state FAR *state));
-local int updatewindow OF((z_streamp strm, unsigned out));
+local int updatewindow OF((z_streamp strm, const unsigned char FAR *end,
+                           unsigned copy));
 #ifdef BUILDFIXED
    void makefixed OF((void));
 #endif
-local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf,
+local unsigned syncsearch OF((unsigned FAR *have, const unsigned char FAR *buf,
                               unsigned len));
 
 int ZEXPORT inflateResetKeep(strm)
@@ -375,12 +376,13 @@ void makefixed()
    output will fall in the output data, making match copies simpler and faster.
    The advantage may be dependent on the size of the processor's data caches.
  */
-local int updatewindow(strm, out)
+local int updatewindow(strm, end, copy)
 z_streamp strm;
-unsigned out;
+const Bytef *end;
+unsigned copy;
 {
     struct inflate_state FAR *state;
-    unsigned copy, dist;
+    unsigned dist;
 
     state = (struct inflate_state FAR *)strm->state;
 
@@ -400,19 +402,18 @@ unsigned out;
     }
 
     /* copy state->wsize or less output bytes into the circular window */
-    copy = out - strm->avail_out;
     if (copy >= state->wsize) {
-        zmemcpy(state->window, strm->next_out - state->wsize, state->wsize);
+        zmemcpy(state->window, end - state->wsize, state->wsize);
         state->wnext = 0;
         state->whave = state->wsize;
     }
     else {
         dist = state->wsize - state->wnext;
         if (dist > copy) dist = copy;
-        zmemcpy(state->window + state->wnext, strm->next_out - copy, dist);
+        zmemcpy(state->window + state->wnext, end - copy, dist);
         copy -= dist;
         if (copy) {
-            zmemcpy(state->window, strm->next_out - copy, copy);
+            zmemcpy(state->window, end - copy, copy);
             state->wnext = copy;
             state->whave = state->wsize;
         }
@@ -606,7 +607,7 @@ z_streamp strm;
 int flush;
 {
     struct inflate_state FAR *state;
-    unsigned char FAR *next;    /* next input */
+    z_const unsigned char FAR *next;    /* next input */
     unsigned char FAR *put;     /* next output */
     unsigned have, left;        /* available input and output */
     unsigned long hold;         /* bit buffer */
@@ -920,7 +921,7 @@ int flush;
             while (state->have < 19)
                 state->lens[order[state->have++]] = 0;
             state->next = state->codes;
-            state->lencode = (code const FAR *)(state->next);
+            state->lencode = (const code FAR *)(state->next);
             state->lenbits = 7;
             ret = inflate_table(CODES, state->lens, 19, &(state->next),
                                 &(state->lenbits), state->work);
@@ -994,7 +995,7 @@ int flush;
                values here (9 and 6) without reading the comments in inftrees.h
                concerning the ENOUGH constants, which depend on those values */
             state->next = state->codes;
-            state->lencode = (code const FAR *)(state->next);
+            state->lencode = (const code FAR *)(state->next);
             state->lenbits = 9;
             ret = inflate_table(LENS, state->lens, state->nlen, &(state->next),
                                 &(state->lenbits), state->work);
@@ -1003,7 +1004,7 @@ int flush;
                 state->mode = BAD;
                 break;
             }
-            state->distcode = (code const FAR *)(state->next);
+            state->distcode = (const code FAR *)(state->next);
             state->distbits = 6;
             ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist,
                             &(state->next), &(state->distbits), state->work);
@@ -1230,7 +1231,7 @@ int flush;
     RESTORE();
     if (state->wsize || (out != strm->avail_out && state->mode < BAD &&
             (state->mode < CHECK || flush != Z_FINISH)))
-        if (updatewindow(strm, out)) {
+        if (updatewindow(strm, strm->next_out, out - strm->avail_out)) {
             state->mode = MEM;
             return Z_MEM_ERROR;
         }
@@ -1264,6 +1265,29 @@ z_streamp strm;
     return Z_OK;
 }
 
+int ZEXPORT inflateGetDictionary(strm, dictionary, dictLength)
+z_streamp strm;
+Bytef *dictionary;
+uInt *dictLength;
+{
+    struct inflate_state FAR *state;
+
+    /* check state */
+    if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* copy dictionary */
+    if (state->whave && dictionary != Z_NULL) {
+        zmemcpy(dictionary, state->window + state->wnext,
+                state->whave - state->wnext);
+        zmemcpy(dictionary + state->whave - state->wnext,
+                state->window, state->wnext);
+    }
+    if (dictLength != Z_NULL)
+        *dictLength = state->whave;
+    return Z_OK;
+}
+
 int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength)
 z_streamp strm;
 const Bytef *dictionary;
@@ -1271,8 +1295,6 @@ uInt dictLength;
 {
     struct inflate_state FAR *state;
     unsigned long dictid;
-    unsigned char *next;
-    unsigned avail;
     int ret;
 
     /* check state */
@@ -1291,13 +1313,7 @@ uInt dictLength;
 
     /* copy dictionary to window using updatewindow(), which will amend the
        existing dictionary if appropriate */
-    next = strm->next_out;
-    avail = strm->avail_out;
-    strm->next_out = (Bytef *)dictionary + dictLength;
-    strm->avail_out = 0;
-    ret = updatewindow(strm, dictLength);
-    strm->avail_out = avail;
-    strm->next_out = next;
+    ret = updatewindow(strm, dictionary + dictLength, dictLength);
     if (ret) {
         state->mode = MEM;
         return Z_MEM_ERROR;
@@ -1337,7 +1353,7 @@ gz_headerp head;
  */
 local unsigned syncsearch(have, buf, len)
 unsigned FAR *have;
-unsigned char FAR *buf;
+const unsigned char FAR *buf;
 unsigned len;
 {
     unsigned got;
diff --git a/compat/zlib/inftrees.c b/compat/zlib/inftrees.c
index abcd7c4..44d89cf 100644
--- a/compat/zlib/inftrees.c
+++ b/compat/zlib/inftrees.c
@@ -1,5 +1,5 @@
 /* inftrees.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2012 Mark Adler
+ * Copyright (C) 1995-2013 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -9,7 +9,7 @@
 #define MAXBITS 15
 
 const char inflate_copyright[] =
-   " inflate 1.2.7 Copyright 1995-2012 Mark Adler ";
+   " inflate 1.2.8 Copyright 1995-2013 Mark Adler ";
 /*
   If you use the zlib library in a product, an acknowledgment is welcome
   in the documentation of your product. If for some reason you cannot
@@ -62,7 +62,7 @@ unsigned short FAR *work;
         35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
     static const unsigned short lext[31] = { /* Length codes 257..285 extra */
         16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
-        19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 78, 68};
+        19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 72, 78};
     static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
         1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
         257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
@@ -208,8 +208,8 @@ unsigned short FAR *work;
     mask = used - 1;            /* mask for comparing low */
 
     /* check available table space */
-    if ((type == LENS && used >= ENOUGH_LENS) ||
-        (type == DISTS && used >= ENOUGH_DISTS))
+    if ((type == LENS && used > ENOUGH_LENS) ||
+        (type == DISTS && used > ENOUGH_DISTS))
         return 1;
 
     /* process all codes and make table entries */
@@ -277,8 +277,8 @@ unsigned short FAR *work;
 
             /* check for enough space */
             used += 1U << curr;
-            if ((type == LENS && used >= ENOUGH_LENS) ||
-                (type == DISTS && used >= ENOUGH_DISTS))
+            if ((type == LENS && used > ENOUGH_LENS) ||
+                (type == DISTS && used > ENOUGH_DISTS))
                 return 1;
 
             /* point entry in root table to sub-table */
diff --git a/compat/zlib/qnx/package.qpg b/compat/zlib/qnx/package.qpg
index 26eed9b..aebf6e3 100644
--- a/compat/zlib/qnx/package.qpg
+++ b/compat/zlib/qnx/package.qpg
@@ -25,10 +25,10 @@
       <QPG:Files>
          <QPG:Add file="../zconf.h" install="/opt/include/" user="root:sys" permission="644"/>
          <QPG:Add file="../zlib.h" install="/opt/include/" user="root:sys" permission="644"/>
-         <QPG:Add file="../libz.so.1.2.7" install="/opt/lib/" user="root:bin" permission="644"/>
-         <QPG:Add file="libz.so" install="/opt/lib/" component="dev" filetype="symlink" linkto="libz.so.1.2.7"/>
-         <QPG:Add file="libz.so.1" install="/opt/lib/" filetype="symlink" linkto="libz.so.1.2.7"/>
-         <QPG:Add file="../libz.so.1.2.7" install="/opt/lib/" component="slib"/>
+         <QPG:Add file="../libz.so.1.2.8" install="/opt/lib/" user="root:bin" permission="644"/>
+         <QPG:Add file="libz.so" install="/opt/lib/" component="dev" filetype="symlink" linkto="libz.so.1.2.8"/>
+         <QPG:Add file="libz.so.1" install="/opt/lib/" filetype="symlink" linkto="libz.so.1.2.8"/>
+         <QPG:Add file="../libz.so.1.2.8" install="/opt/lib/" component="slib"/>
       </QPG:Files>
 
       <QPG:PackageFilter>
@@ -63,7 +63,7 @@
             </QPM:ProductDescription>
 
             <QPM:ReleaseDescription>
-               <QPM:ReleaseVersion>1.2.7</QPM:ReleaseVersion>
+               <QPM:ReleaseVersion>1.2.8</QPM:ReleaseVersion>
                <QPM:ReleaseUrgency>Medium</QPM:ReleaseUrgency>
                <QPM:ReleaseStability>Stable</QPM:ReleaseStability>
                <QPM:ReleaseNoteMinor></QPM:ReleaseNoteMinor>
diff --git a/compat/zlib/test/example.c b/compat/zlib/test/example.c
index f515a48..138a699 100644
--- a/compat/zlib/test/example.c
+++ b/compat/zlib/test/example.c
@@ -26,7 +26,7 @@
     } \
 }
 
-const char hello[] = "hello, hello!";
+z_const char hello[] = "hello, hello!";
 /* "hello world" would be more standard, but the repeated "hello"
  * stresses the compression code better, sorry...
  */
@@ -212,7 +212,7 @@ void test_deflate(compr, comprLen)
     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
     CHECK_ERR(err, "deflateInit");
 
-    c_stream.next_in  = (Bytef*)hello;
+    c_stream.next_in  = (z_const unsigned char *)hello;
     c_stream.next_out = compr;
 
     while (c_stream.total_in != len && c_stream.total_out < comprLen) {
@@ -387,7 +387,7 @@ void test_flush(compr, comprLen)
     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
     CHECK_ERR(err, "deflateInit");
 
-    c_stream.next_in  = (Bytef*)hello;
+    c_stream.next_in  = (z_const unsigned char *)hello;
     c_stream.next_out = compr;
     c_stream.avail_in = 3;
     c_stream.avail_out = (uInt)*comprLen;
@@ -476,7 +476,7 @@ void test_dict_deflate(compr, comprLen)
     c_stream.next_out = compr;
     c_stream.avail_out = (uInt)comprLen;
 
-    c_stream.next_in = (Bytef*)hello;
+    c_stream.next_in = (z_const unsigned char *)hello;
     c_stream.avail_in = (uInt)strlen(hello)+1;
 
     err = deflate(&c_stream, Z_FINISH);
diff --git a/compat/zlib/test/minigzip.c b/compat/zlib/test/minigzip.c
index aa7ac7a..b3025a4 100644
--- a/compat/zlib/test/minigzip.c
+++ b/compat/zlib/test/minigzip.c
@@ -40,6 +40,10 @@
 #  define SET_BINARY_MODE(file)
 #endif
 
+#ifdef _MSC_VER
+#  define snprintf _snprintf
+#endif
+
 #ifdef VMS
 #  define unlink delete
 #  define GZ_SUFFIX "-gz"
@@ -463,8 +467,12 @@ void file_compress(file, mode)
         exit(1);
     }
 
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(outfile, sizeof(outfile), "%s%s", file, GZ_SUFFIX);
+#else
     strcpy(outfile, file);
     strcat(outfile, GZ_SUFFIX);
+#endif
 
     in = fopen(file, "rb");
     if (in == NULL) {
@@ -499,7 +507,11 @@ void file_uncompress(file)
         exit(1);
     }
 
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(buf, sizeof(buf), "%s", file);
+#else
     strcpy(buf, file);
+#endif
 
     if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
         infile = file;
@@ -508,7 +520,11 @@ void file_uncompress(file)
     } else {
         outfile = file;
         infile = buf;
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+        snprintf(buf + len, sizeof(buf) - len, "%s", GZ_SUFFIX);
+#else
         strcat(infile, GZ_SUFFIX);
+#endif
     }
     in = gzopen(infile, "rb");
     if (in == NULL) {
@@ -546,7 +562,11 @@ int main(argc, argv)
     gzFile file;
     char *bname, outmode[20];
 
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(outmode, sizeof(outmode), "%s", "wb6 ");
+#else
     strcpy(outmode, "wb6 ");
+#endif
 
     prog = argv[0];
     bname = strrchr(argv[0], '/');
diff --git a/compat/zlib/treebuild.xml b/compat/zlib/treebuild.xml
index 1f4d15f..38d29d7 100644
--- a/compat/zlib/treebuild.xml
+++ b/compat/zlib/treebuild.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" ?>
-<package name="zlib" version="1.2.7">
-    <library name="zlib" dlversion="1.2.7" dlname="z">
+<package name="zlib" version="1.2.8">
+    <library name="zlib" dlversion="1.2.8" dlname="z">
 	<property name="description"> zip compression library </property>
 	<property name="include-target-dir" value="$(@PACKAGE/install-includedir)" />
 
diff --git a/compat/zlib/trees.c b/compat/zlib/trees.c
index 8c32b21..1fd7759 100644
--- a/compat/zlib/trees.c
+++ b/compat/zlib/trees.c
@@ -146,8 +146,8 @@ local void send_tree      OF((deflate_state *s, ct_data *tree, int max_code));
 local int  build_bl_tree  OF((deflate_state *s));
 local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes,
                               int blcodes));
-local void compress_block OF((deflate_state *s, ct_data *ltree,
-                              ct_data *dtree));
+local void compress_block OF((deflate_state *s, const ct_data *ltree,
+                              const ct_data *dtree));
 local int  detect_data_type OF((deflate_state *s));
 local unsigned bi_reverse OF((unsigned value, int length));
 local void bi_windup      OF((deflate_state *s));
@@ -972,7 +972,8 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
     } else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) {
 #endif
         send_bits(s, (STATIC_TREES<<1)+last, 3);
-        compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree);
+        compress_block(s, (const ct_data *)static_ltree,
+                       (const ct_data *)static_dtree);
 #ifdef DEBUG
         s->compressed_len += 3 + s->static_len;
 #endif
@@ -980,7 +981,8 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
         send_bits(s, (DYN_TREES<<1)+last, 3);
         send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1,
                        max_blindex+1);
-        compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree);
+        compress_block(s, (const ct_data *)s->dyn_ltree,
+                       (const ct_data *)s->dyn_dtree);
 #ifdef DEBUG
         s->compressed_len += 3 + s->opt_len;
 #endif
@@ -1057,8 +1059,8 @@ int ZLIB_INTERNAL _tr_tally (s, dist, lc)
  */
 local void compress_block(s, ltree, dtree)
     deflate_state *s;
-    ct_data *ltree; /* literal tree */
-    ct_data *dtree; /* distance tree */
+    const ct_data *ltree; /* literal tree */
+    const ct_data *dtree; /* distance tree */
 {
     unsigned dist;      /* distance of matched string */
     int lc;             /* match length or unmatched char (if dist == 0) */
diff --git a/compat/zlib/uncompr.c b/compat/zlib/uncompr.c
index ad98be3..242e949 100644
--- a/compat/zlib/uncompr.c
+++ b/compat/zlib/uncompr.c
@@ -30,7 +30,7 @@ int ZEXPORT uncompress (dest, destLen, source, sourceLen)
     z_stream stream;
     int err;
 
-    stream.next_in = (Bytef*)source;
+    stream.next_in = (z_const Bytef *)source;
     stream.avail_in = (uInt)sourceLen;
     /* Check for source > 64K on 16-bit machine: */
     if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
diff --git a/compat/zlib/win32/Makefile.msc b/compat/zlib/win32/Makefile.msc
index 59bb0da..67b7731 100644
--- a/compat/zlib/win32/Makefile.msc
+++ b/compat/zlib/win32/Makefile.msc
@@ -9,6 +9,10 @@
 #   nmake -f win32/Makefile.msc AS=ml64 LOC="-DASMV -DASMINF -I." \
 #         OBJA="inffasx64.obj gvmat64.obj inffas8664.obj"  (use ASM code, x64)
 
+# The toplevel directory of the source tree.
+#
+TOP = .
+
 # optional build flags
 LOC =
 
@@ -43,8 +47,8 @@ $(STATICLIB): $(OBJS) $(OBJA)
 
 $(IMPLIB): $(SHAREDLIB)
 
-$(SHAREDLIB): win32/zlib.def $(OBJS) $(OBJA) zlib1.res
-	$(LD) $(LDFLAGS) -def:win32/zlib.def -dll -implib:$(IMPLIB) \
+$(SHAREDLIB): $(TOP)/win32/zlib.def $(OBJS) $(OBJA) zlib1.res
+	$(LD) $(LDFLAGS) -def:$(TOP)/win32/zlib.def -dll -implib:$(IMPLIB) \
 	  -out:$@ -base:0x5A4C0000 $(OBJS) $(OBJA) zlib1.res
 	if exist $@.manifest \
 	  mt -nologo -manifest $@.manifest -outputresource:$@;2
@@ -69,72 +73,71 @@ minigzip_d.exe: minigzip.obj $(IMPLIB)
 	if exist $@.manifest \
 	  mt -nologo -manifest $@.manifest -outputresource:$@;1
 
-.c.obj:
+{$(TOP)}.c.obj:
 	$(CC) -c $(WFLAGS) $(CFLAGS) $<
 
-{test}.c.obj:
-	$(CC) -c -I. $(WFLAGS) $(CFLAGS) $<
+{$(TOP)/test}.c.obj:
+	$(CC) -c -I$(TOP) $(WFLAGS) $(CFLAGS) $<
 
-{contrib/masmx64}.c.obj:
+{$(TOP)/contrib/masmx64}.c.obj:
 	$(CC) -c $(WFLAGS) $(CFLAGS) $<
 
-{contrib/masmx64}.asm.obj:
+{$(TOP)/contrib/masmx64}.asm.obj:
 	$(AS) -c $(ASFLAGS) $<
 
-{contrib/masmx86}.asm.obj:
+{$(TOP)/contrib/masmx86}.asm.obj:
 	$(AS) -c $(ASFLAGS) $<
 
-adler32.obj: adler32.c zlib.h zconf.h
-
-compress.obj: compress.c zlib.h zconf.h
+adler32.obj: $(TOP)/adler32.c $(TOP)/zlib.h $(TOP)/zconf.h
 
-crc32.obj: crc32.c zlib.h zconf.h crc32.h
+compress.obj: $(TOP)/compress.c $(TOP)/zlib.h $(TOP)/zconf.h
 
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+crc32.obj: $(TOP)/crc32.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/crc32.h
 
-gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+deflate.obj: $(TOP)/deflate.c $(TOP)/deflate.h $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h
 
-gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+gzclose.obj: $(TOP)/gzclose.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/gzguts.h
 
-gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+gzlib.obj: $(TOP)/gzlib.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/gzguts.h
 
-gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+gzread.obj: $(TOP)/gzread.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/gzguts.h
 
-infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
-             inffast.h inffixed.h
+gzwrite.obj: $(TOP)/gzwrite.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/gzguts.h
 
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
-             inffast.h
+infback.obj: $(TOP)/infback.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/inftrees.h $(TOP)/inflate.h \
+             $(TOP)/inffast.h $(TOP)/inffixed.h
 
-inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
-             inffast.h inffixed.h
+inffast.obj: $(TOP)/inffast.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/inftrees.h $(TOP)/inflate.h \
+             $(TOP)/inffast.h
 
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+inflate.obj: $(TOP)/inflate.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/inftrees.h $(TOP)/inflate.h \
+             $(TOP)/inffast.h $(TOP)/inffixed.h
 
-trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+inftrees.obj: $(TOP)/inftrees.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/inftrees.h
 
-uncompr.obj: uncompr.c zlib.h zconf.h
+trees.obj: $(TOP)/trees.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/deflate.h $(TOP)/trees.h
 
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
+uncompr.obj: $(TOP)/uncompr.c $(TOP)/zlib.h $(TOP)/zconf.h
 
-gvmat64.obj: contrib\masmx64\gvmat64.asm
+zutil.obj: $(TOP)/zutil.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h
 
-inffasx64.obj: contrib\masmx64\inffasx64.asm
+gvmat64.obj: $(TOP)/contrib\masmx64\gvmat64.asm
 
-inffas8664.obj: contrib\masmx64\inffas8664.c zutil.h zlib.h zconf.h \
-		inftrees.h inflate.h inffast.h
+inffasx64.obj: $(TOP)/contrib\masmx64\inffasx64.asm
 
-inffas32.obj: contrib\masmx86\inffas32.asm
+inffas8664.obj: $(TOP)/contrib\masmx64\inffas8664.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h \
+		$(TOP)/inftrees.h $(TOP)/inflate.h $(TOP)/inffast.h
 
-match686.obj: contrib\masmx86\match686.asm
+inffas32.obj: $(TOP)/contrib\masmx86\inffas32.asm
 
-example.obj: test/example.c zlib.h zconf.h
+match686.obj: $(TOP)/contrib\masmx86\match686.asm
 
-minigzip.obj: test/minigzip.c zlib.h zconf.h
+example.obj: $(TOP)/test/example.c $(TOP)/zlib.h $(TOP)/zconf.h
 
-zlib1.res: win32/zlib1.rc
-	$(RC) $(RCFLAGS) /fo$@ win32/zlib1.rc
+minigzip.obj: $(TOP)/test/minigzip.c $(TOP)/zlib.h $(TOP)/zconf.h
 
+zlib1.res: $(TOP)/win32/zlib1.rc
+	$(RC) $(RCFLAGS) /fo$@ $(TOP)/win32/zlib1.rc
 
 # testing
 test: example.exe minigzip.exe
diff --git a/compat/zlib/win32/README-WIN32.txt b/compat/zlib/win32/README-WIN32.txt
index 46c5923..3d77d52 100644
--- a/compat/zlib/win32/README-WIN32.txt
+++ b/compat/zlib/win32/README-WIN32.txt
@@ -1,6 +1,6 @@
 ZLIB DATA COMPRESSION LIBRARY
 
-zlib 1.2.7 is a general purpose data compression library.  All the code is
+zlib 1.2.8 is a general purpose data compression library.  All the code is
 thread safe.  The data format used by the zlib library is described by RFCs
 (Request for Comments) 1950 to 1952 in the files
 http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
@@ -22,7 +22,7 @@ before asking for help.
 
 Manifest:
 
-The package zlib-1.2.7-win32-x86.zip will contain the following files:
+The package zlib-1.2.8-win32-x86.zip will contain the following files:
 
   README-WIN32.txt This document
   ChangeLog        Changes since previous zlib packages
diff --git a/compat/zlib/win32/README.txt b/compat/zlib/win32/README.txt
index fad9f14..34a13b3 100644
--- a/compat/zlib/win32/README.txt
+++ b/compat/zlib/win32/README.txt
@@ -6,7 +6,7 @@ What's here
 

 Source

 ======

-  zlib version 1.2.5

+  zlib version 1.2.8

   available at http://www.gzip.org/zlib/

 

 

@@ -22,17 +22,18 @@ Usage
 

 Build info

 ==========

-  Contributed by Cosmin Truta.

+  Contributed by Jan Nijtmans.

 

   Compiler:

-    gcc-4.5.0-1-mingw32

+    i686-w64-mingw32-gcc (GCC) 4.5.3

   Library:

-    mingwrt-3.17, w32api-3.14

+    mingw64-i686-runtime/headers: 3.0b_svn5747-1

   Build commands:

-    gcc -c -DASMV contrib/asm686/match.S

-    gcc -c -DASMINF -I. -O3 contrib/inflate86/inffas86.c

-    make -f win32/Makefile.gcc LOC="-DASMV -DASMINF" OBJA="inffas86.o match.o"

-

+    i686-w64-mingw32-gcc -c -DASMV contrib/asm686/match.S

+    i686-w64-mingw32-gcc -c -DASMINF -I. -O3 contrib/inflate86/inffas86.c

+    make -f win32/Makefile.gcc PREFIX=i686-w64-mingw32- LOC="-mms-bitfields -DASMV -DASMINF" OBJA="inffas86.o match.o"

+   Finally, from VS commandline (VS2005 or higher):

+    lib -machine:X86 -name:zlib1.dll -def:zlib.def -out:zdll.lib

 

 Copyright notice

 ================

diff --git a/compat/zlib/win32/zdll.lib b/compat/zlib/win32/zdll.lib
index 4e53491..8e6f719 100644
--- a/compat/zlib/win32/zdll.lib
+++ b/compat/zlib/win32/zdll.lib
diff --git a/compat/zlib/win32/zlib.def b/compat/zlib/win32/zlib.def
index 0489615..face655 100644
--- a/compat/zlib/win32/zlib.def
+++ b/compat/zlib/win32/zlib.def
@@ -17,6 +17,7 @@ EXPORTS
     deflatePrime
     deflateSetHeader
     inflateSetDictionary
+    inflateGetDictionary
     inflateSync
     inflateCopy
     inflateReset
@@ -39,6 +40,7 @@ EXPORTS
     gzread
     gzwrite
     gzprintf
+    gzvprintf
     gzputs
     gzgets
     gzputc
diff --git a/compat/zlib/win32/zlib1.dll b/compat/zlib/win32/zlib1.dll
index 9943b3e..9ea38d5 100644
--- a/compat/zlib/win32/zlib1.dll
+++ b/compat/zlib/win32/zlib1.dll
diff --git a/compat/zlib/win32/zlib1.rc b/compat/zlib/win32/zlib1.rc
index 0d1d7ff..5c0feed 100644
--- a/compat/zlib/win32/zlib1.rc
+++ b/compat/zlib/win32/zlib1.rc
@@ -26,7 +26,7 @@ BEGIN
       VALUE "FileDescription",	"zlib data compression library\0"
       VALUE "FileVersion",	ZLIB_VERSION "\0"
       VALUE "InternalName",	"zlib1.dll\0"
-      VALUE "LegalCopyright",	"(C) 1995-2006 Jean-loup Gailly & Mark Adler\0"
+      VALUE "LegalCopyright",	"(C) 1995-2013 Jean-loup Gailly & Mark Adler\0"
       VALUE "OriginalFilename",	"zlib1.dll\0"
       VALUE "ProductName",	"zlib\0"
       VALUE "ProductVersion",	ZLIB_VERSION "\0"
diff --git a/compat/zlib/win64/libz.dll.a b/compat/zlib/win64/libz.dll.a
new file mode 100644
index 0000000..a3ae403
--- /dev/null
+++ b/compat/zlib/win64/libz.dll.a
diff --git a/compat/zlib/win64/zdll.lib b/compat/zlib/win64/zdll.lib
index 084dbff..ac9ffc9 100644
--- a/compat/zlib/win64/zdll.lib
+++ b/compat/zlib/win64/zdll.lib
diff --git a/compat/zlib/win64/zlib1.dll b/compat/zlib/win64/zlib1.dll
index 631439b..bd1dbc6 100644
--- a/compat/zlib/win64/zlib1.dll
+++ b/compat/zlib/win64/zlib1.dll
diff --git a/compat/zlib/zconf.h b/compat/zlib/zconf.h
index 8a46a58..9987a77 100644
--- a/compat/zlib/zconf.h
+++ b/compat/zlib/zconf.h
@@ -1,5 +1,5 @@
 /* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2012 Jean-loup Gailly.
+ * Copyright (C) 1995-2013 Jean-loup Gailly.
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -21,6 +21,7 @@
 #  define _dist_code            z__dist_code
 #  define _length_code          z__length_code
 #  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
 #  define _tr_flush_block       z__tr_flush_block
 #  define _tr_init              z__tr_init
 #  define _tr_stored_block      z__tr_stored_block
@@ -77,6 +78,7 @@
 #      define gzopen_w              z_gzopen_w
 #    endif
 #    define gzprintf              z_gzprintf
+#    define gzvprintf             z_gzvprintf
 #    define gzputc                z_gzputc
 #    define gzputs                z_gzputs
 #    define gzread                z_gzread
@@ -103,6 +105,7 @@
 #  define inflateReset          z_inflateReset
 #  define inflateReset2         z_inflateReset2
 #  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateGetDictionary  z_inflateGetDictionary
 #  define inflateSync           z_inflateSync
 #  define inflateSyncPoint      z_inflateSyncPoint
 #  define inflateUndermine      z_inflateUndermine
@@ -388,20 +391,14 @@ typedef uLong FAR uLongf;
    typedef Byte       *voidp;
 #endif
 
-/* ./configure may #define Z_U4 here */
-
 #if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
 #  include <limits.h>
 #  if (UINT_MAX == 0xffffffffUL)
 #    define Z_U4 unsigned
-#  else
-#    if (ULONG_MAX == 0xffffffffUL)
-#      define Z_U4 unsigned long
-#    else
-#      if (USHRT_MAX == 0xffffffffUL)
-#        define Z_U4 unsigned short
-#      endif
-#    endif
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
 #  endif
 #endif
 
@@ -425,8 +422,16 @@ typedef uLong FAR uLongf;
 #  endif
 #endif
 
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
 #ifdef _WIN32
-#  include <stddef.h>           /* for wchar_t */
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
 #endif
 
 /* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
@@ -435,7 +440,7 @@ typedef uLong FAR uLongf;
  * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
  * equivalently requesting no 64-bit operations
  */
-#if defined(LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
 #  undef _LARGEFILE64_SOURCE
 #endif
 
@@ -443,7 +448,7 @@ typedef uLong FAR uLongf;
 #  define Z_HAVE_UNISTD_H
 #endif
 #ifndef Z_SOLO
-#  if defined(Z_HAVE_UNISTD_H) || defined(LARGEFILE64_SOURCE)
+#  if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
 #    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
 #    ifdef VMS
 #      include <unixio.h>       /* for off_t */
diff --git a/compat/zlib/zconf.h.cmakein b/compat/zlib/zconf.h.cmakein
index b6ca59a..043019c 100644
--- a/compat/zlib/zconf.h.cmakein
+++ b/compat/zlib/zconf.h.cmakein
@@ -1,5 +1,5 @@
 /* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2012 Jean-loup Gailly.
+ * Copyright (C) 1995-2013 Jean-loup Gailly.
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -23,6 +23,7 @@
 #  define _dist_code            z__dist_code
 #  define _length_code          z__length_code
 #  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
 #  define _tr_flush_block       z__tr_flush_block
 #  define _tr_init              z__tr_init
 #  define _tr_stored_block      z__tr_stored_block
@@ -79,6 +80,7 @@
 #      define gzopen_w              z_gzopen_w
 #    endif
 #    define gzprintf              z_gzprintf
+#    define gzvprintf             z_gzvprintf
 #    define gzputc                z_gzputc
 #    define gzputs                z_gzputs
 #    define gzread                z_gzread
@@ -105,6 +107,7 @@
 #  define inflateReset          z_inflateReset
 #  define inflateReset2         z_inflateReset2
 #  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateGetDictionary  z_inflateGetDictionary
 #  define inflateSync           z_inflateSync
 #  define inflateSyncPoint      z_inflateSyncPoint
 #  define inflateUndermine      z_inflateUndermine
@@ -390,20 +393,14 @@ typedef uLong FAR uLongf;
    typedef Byte       *voidp;
 #endif
 
-/* ./configure may #define Z_U4 here */
-
 #if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
 #  include <limits.h>
 #  if (UINT_MAX == 0xffffffffUL)
 #    define Z_U4 unsigned
-#  else
-#    if (ULONG_MAX == 0xffffffffUL)
-#      define Z_U4 unsigned long
-#    else
-#      if (USHRT_MAX == 0xffffffffUL)
-#        define Z_U4 unsigned short
-#      endif
-#    endif
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
 #  endif
 #endif
 
@@ -427,8 +424,16 @@ typedef uLong FAR uLongf;
 #  endif
 #endif
 
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
 #ifdef _WIN32
-#  include <stddef.h>           /* for wchar_t */
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
 #endif
 
 /* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
@@ -437,7 +442,7 @@ typedef uLong FAR uLongf;
  * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
  * equivalently requesting no 64-bit operations
  */
-#if defined(LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
 #  undef _LARGEFILE64_SOURCE
 #endif
 
@@ -445,7 +450,7 @@ typedef uLong FAR uLongf;
 #  define Z_HAVE_UNISTD_H
 #endif
 #ifndef Z_SOLO
-#  if defined(Z_HAVE_UNISTD_H) || defined(LARGEFILE64_SOURCE)
+#  if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
 #    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
 #    ifdef VMS
 #      include <unixio.h>       /* for off_t */
diff --git a/compat/zlib/zconf.h.in b/compat/zlib/zconf.h.in
index 8a46a58..9987a77 100644
--- a/compat/zlib/zconf.h.in
+++ b/compat/zlib/zconf.h.in
@@ -1,5 +1,5 @@
 /* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2012 Jean-loup Gailly.
+ * Copyright (C) 1995-2013 Jean-loup Gailly.
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -21,6 +21,7 @@
 #  define _dist_code            z__dist_code
 #  define _length_code          z__length_code
 #  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
 #  define _tr_flush_block       z__tr_flush_block
 #  define _tr_init              z__tr_init
 #  define _tr_stored_block      z__tr_stored_block
@@ -77,6 +78,7 @@
 #      define gzopen_w              z_gzopen_w
 #    endif
 #    define gzprintf              z_gzprintf
+#    define gzvprintf             z_gzvprintf
 #    define gzputc                z_gzputc
 #    define gzputs                z_gzputs
 #    define gzread                z_gzread
@@ -103,6 +105,7 @@
 #  define inflateReset          z_inflateReset
 #  define inflateReset2         z_inflateReset2
 #  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateGetDictionary  z_inflateGetDictionary
 #  define inflateSync           z_inflateSync
 #  define inflateSyncPoint      z_inflateSyncPoint
 #  define inflateUndermine      z_inflateUndermine
@@ -388,20 +391,14 @@ typedef uLong FAR uLongf;
    typedef Byte       *voidp;
 #endif
 
-/* ./configure may #define Z_U4 here */
-
 #if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
 #  include <limits.h>
 #  if (UINT_MAX == 0xffffffffUL)
 #    define Z_U4 unsigned
-#  else
-#    if (ULONG_MAX == 0xffffffffUL)
-#      define Z_U4 unsigned long
-#    else
-#      if (USHRT_MAX == 0xffffffffUL)
-#        define Z_U4 unsigned short
-#      endif
-#    endif
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
 #  endif
 #endif
 
@@ -425,8 +422,16 @@ typedef uLong FAR uLongf;
 #  endif
 #endif
 
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
 #ifdef _WIN32
-#  include <stddef.h>           /* for wchar_t */
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
 #endif
 
 /* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
@@ -435,7 +440,7 @@ typedef uLong FAR uLongf;
  * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
  * equivalently requesting no 64-bit operations
  */
-#if defined(LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
 #  undef _LARGEFILE64_SOURCE
 #endif
 
@@ -443,7 +448,7 @@ typedef uLong FAR uLongf;
 #  define Z_HAVE_UNISTD_H
 #endif
 #ifndef Z_SOLO
-#  if defined(Z_HAVE_UNISTD_H) || defined(LARGEFILE64_SOURCE)
+#  if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
 #    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
 #    ifdef VMS
 #      include <unixio.h>       /* for off_t */
diff --git a/compat/zlib/zlib.3 b/compat/zlib/zlib.3
index 79d3402..0160e62 100644
--- a/compat/zlib/zlib.3
+++ b/compat/zlib/zlib.3
@@ -1,4 +1,4 @@
-.TH ZLIB 3 "2 May 2012"
+.TH ZLIB 3 "28 Apr 2013"
 .SH NAME
 zlib \- compression/decompression library
 .SH SYNOPSIS
@@ -125,8 +125,8 @@ before asking for help.
 Send questions and/or comments to zlib@gzip.org,
 or (for the Windows DLL version) to Gilles Vollant (info@winimage.com).
 .SH AUTHORS
-Version 1.2.7
-Copyright (C) 1995-2012 Jean-loup Gailly (jloup@gzip.org)
+Version 1.2.8
+Copyright (C) 1995-2013 Jean-loup Gailly (jloup@gzip.org)
 and Mark Adler (madler@alumni.caltech.edu).
 .LP
 This software is provided "as-is,"
diff --git a/compat/zlib/zlib.3.pdf b/compat/zlib/zlib.3.pdf
index 485306c..a346b5d 100644
--- a/compat/zlib/zlib.3.pdf
+++ b/compat/zlib/zlib.3.pdf
diff --git a/compat/zlib/zlib.h b/compat/zlib/zlib.h
index 3edf3ac..3e0c767 100644
--- a/compat/zlib/zlib.h
+++ b/compat/zlib/zlib.h
@@ -1,7 +1,7 @@
 /* zlib.h -- interface of the 'zlib' general purpose compression library
-  version 1.2.7, May 2nd, 2012
+  version 1.2.8, April 28th, 2013
 
-  Copyright (C) 1995-2012 Jean-loup Gailly and Mark Adler
+  Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
@@ -37,11 +37,11 @@
 extern "C" {
 #endif
 
-#define ZLIB_VERSION "1.2.7"
-#define ZLIB_VERNUM 0x1270
+#define ZLIB_VERSION "1.2.8"
+#define ZLIB_VERNUM 0x1280
 #define ZLIB_VER_MAJOR 1
 #define ZLIB_VER_MINOR 2
-#define ZLIB_VER_REVISION 7
+#define ZLIB_VER_REVISION 8
 #define ZLIB_VER_SUBREVISION 0
 
 /*
@@ -839,6 +839,21 @@ ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
    inflate().
 */
 
+ZEXTERN int ZEXPORT inflateGetDictionary OF((z_streamp strm,
+                                             Bytef *dictionary,
+                                             uInt  *dictLength));
+/*
+     Returns the sliding dictionary being maintained by inflate.  dictLength is
+   set to the number of bytes in the dictionary, and that many bytes are copied
+   to dictionary.  dictionary must have enough space, where 32768 bytes is
+   always enough.  If inflateGetDictionary() is called with dictionary equal to
+   Z_NULL, then only the dictionary length is returned, and nothing is copied.
+   Similary, if dictLength is Z_NULL, then it is not set.
+
+     inflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the
+   stream state is inconsistent.
+*/
+
 ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
 /*
      Skips invalid compressed data until a possible full flush point (see above
@@ -846,7 +861,7 @@ ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
    available input is skipped.  No output is provided.
 
      inflateSync searches for a 00 00 FF FF pattern in the compressed data.
-   All full flush points have this pattern, but not all occurences of this
+   All full flush points have this pattern, but not all occurrences of this
    pattern are full flush points.
 
      inflateSync returns Z_OK if a possible full flush point has been found,
@@ -1007,7 +1022,8 @@ ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
    the version of the header file.
 */
 
-typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *));
+typedef unsigned (*in_func) OF((void FAR *,
+                                z_const unsigned char FAR * FAR *));
 typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned));
 
 ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
@@ -1015,11 +1031,12 @@ ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
                                     out_func out, void FAR *out_desc));
 /*
      inflateBack() does a raw inflate with a single call using a call-back
-   interface for input and output.  This is more efficient than inflate() for
-   file i/o applications in that it avoids copying between the output and the
-   sliding window by simply making the window itself the output buffer.  This
-   function trusts the application to not change the output buffer passed by
-   the output function, at least until inflateBack() returns.
+   interface for input and output.  This is potentially more efficient than
+   inflate() for file i/o applications, in that it avoids copying between the
+   output and the sliding window by simply making the window itself the output
+   buffer.  inflate() can be faster on modern CPUs when used with large
+   buffers.  inflateBack() trusts the application to not change the output
+   buffer passed by the output function, at least until inflateBack() returns.
 
      inflateBackInit() must be called first to allocate the internal state
    and to initialize the state with the user-provided window buffer.
@@ -1736,6 +1753,13 @@ ZEXTERN int            ZEXPORT deflateResetKeep OF((z_streamp));
 ZEXTERN gzFile         ZEXPORT gzopen_w OF((const wchar_t *path,
                                             const char *mode));
 #endif
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+ZEXTERN int            ZEXPORTVA gzvprintf Z_ARG((gzFile file,
+                                                  const char *format,
+                                                  va_list va));
+#  endif
+#endif
 
 #ifdef __cplusplus
 }
diff --git a/compat/zlib/zlib.map b/compat/zlib/zlib.map
index 771f420..55c6647 100644
--- a/compat/zlib/zlib.map
+++ b/compat/zlib/zlib.map
@@ -76,3 +76,8 @@ ZLIB_1.2.5.2 {
     gzgetc_;
     inflateResetKeep;
 } ZLIB_1.2.5.1;
+
+ZLIB_1.2.7.1 {
+    inflateGetDictionary;
+    gzvprintf;
+} ZLIB_1.2.5.2;
diff --git a/compat/zlib/zutil.c b/compat/zlib/zutil.c
index 65e0d3b..23d2ebe 100644
--- a/compat/zlib/zutil.c
+++ b/compat/zlib/zutil.c
@@ -14,7 +14,7 @@
 struct internal_state      {int dummy;}; /* for buggy compilers */
 #endif
 
-const char * const z_errmsg[10] = {
+z_const char * const z_errmsg[10] = {
 "need dictionary",     /* Z_NEED_DICT       2  */
 "stream end",          /* Z_STREAM_END      1  */
 "",                    /* Z_OK              0  */
diff --git a/compat/zlib/zutil.h b/compat/zlib/zutil.h
index 4e3dcc6..24ab06b 100644
--- a/compat/zlib/zutil.h
+++ b/compat/zlib/zutil.h
@@ -1,5 +1,5 @@
 /* zutil.h -- internal interface and configuration of the compression library
- * Copyright (C) 1995-2012 Jean-loup Gailly.
+ * Copyright (C) 1995-2013 Jean-loup Gailly.
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -44,13 +44,13 @@ typedef unsigned short ush;
 typedef ush FAR ushf;
 typedef unsigned long  ulg;
 
-extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
 /* (size given to avoid silly warnings with Visual C++) */
 
 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
 
 #define ERR_RETURN(strm,err) \
-  return (strm->msg = (char*)ERR_MSG(err), (err))
+  return (strm->msg = ERR_MSG(err), (err))
 /* To be used only when the state is known to be valid */
 
         /* common constants */
@@ -168,7 +168,8 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
 #endif
 
 /* provide prototypes for these when building zlib without LFS */
-#if !defined(_WIN32) && (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
+#if !defined(_WIN32) && \
+    (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
     ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
     ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
 #endif
diff --git a/doc/Access.3 b/doc/Access.3
index 1e82e07..668e1db 100644
--- a/doc/Access.3
+++ b/doc/Access.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Access 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Access, Tcl_Stat \- check file permissions and other attributes
diff --git a/doc/AddErrInfo.3 b/doc/AddErrInfo.3
index e450a3e..d4bf7d5 100644
--- a/doc/AddErrInfo.3
+++ b/doc/AddErrInfo.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_AddErrorInfo 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetReturnOptions, Tcl_SetReturnOptions, Tcl_AddErrorInfo, Tcl_AppendObjToErrorInfo, Tcl_AddObjErrorInfo, Tcl_SetObjErrorCode, Tcl_SetErrorCode, Tcl_SetErrorCodeVA, Tcl_SetErrorLine, Tcl_GetErrorLine, Tcl_PosixError, Tcl_LogCommandInfo \- retrieve or record information about errors and other return options
@@ -107,7 +107,7 @@ with the value of \fIcode\fR.  The \fB(Tcl_Obj *)\fR returned
 by \fBTcl_GetReturnOptions\fR points to an unshared
 \fBTcl_Obj\fR with reference count of zero.  The dictionary
 may be written to, either adding, removing, or overwriting
-any entries in it, without the need to check for a shared object.
+any entries in it, without the need to check for a shared value.
 As with any \fBTcl_Obj\fR with reference count of zero, it is up to
 the caller to arrange for its disposal with \fBTcl_DecrRefCount\fR or
 to a reference to it via \fBTcl_IncrRefCount\fR (or one of the many
@@ -176,16 +176,16 @@ these return options.
 The \fB\-errorinfo\fR option holds a stack trace of the
 operations that were in progress when an error occurred,
 and is intended to be human-readable.
-The \fB\-errorcode\fR option holds a list of items that
+The \fB\-errorcode\fR option holds a Tcl list of items that
 are intended to be machine-readable.
 The first item in the \fB\-errorcode\fR value identifies the class of
 error that occurred
-(e.g. POSIX means an error occurred in a POSIX system call)
+(e.g., POSIX means an error occurred in a POSIX system call)
 and additional elements hold additional pieces
 of information that depend on the class.
-See the \fBtclvars\fR manual entry for details on the various
-formats for the \fB\-errorcode\fR option used by
-Tcl's built-in commands.
+See the manual entry on the \fBerrorCode\fR variable for details on the
+various formats for the \fB\-errorcode\fR option used by Tcl's built-in
+commands.
 .PP
 The \fB\-errorinfo\fR option value is gradually built up as an
 error unwinds through the nested operations.
@@ -232,7 +232,7 @@ the need for a null byte.  If the \fBTcl_AddObjErrorInfo\fR
 interface is used at all, it should be with a negative \fIlength\fR value.
 .PP
 The procedure \fBTcl_SetObjErrorCode\fR is used to set the
-\fB\-errorcode\fR return option to the list object \fIerrorObjPtr\fR 
+\fB\-errorcode\fR return option to the list value \fIerrorObjPtr\fR 
 built up by the caller. 
 \fBTcl_SetObjErrorCode\fR is typically invoked just 
 before returning an error. If an error is
@@ -242,7 +242,7 @@ the \fB\-errorcode\fR return option to \fBNONE\fR.
 .PP
 The procedure \fBTcl_SetErrorCode\fR is also used to set the
 \fB\-errorcode\fR return option. However, it takes one or more strings to
-record instead of an object. Otherwise, it is similar to
+record instead of a value. Otherwise, it is similar to
 \fBTcl_SetObjErrorCode\fR in behavior.
 .PP
 \fBTcl_SetErrorCodeVA\fR is the same as \fBTcl_SetErrorCode\fR except that
@@ -307,6 +307,6 @@ so they continue to hold a record of information about the
 most recent error seen in an interpreter.
 .SH "SEE ALSO"
 Tcl_DecrRefCount(3), Tcl_IncrRefCount(3), Tcl_Interp(3), Tcl_ResetResult(3),
-Tcl_SetErrno(3), tclvars(n)
+Tcl_SetErrno(3), errorCode(n), errorInfo(n)
 .SH KEYWORDS
-error, object, object result, stack, trace, variable
+error, value, value result, stack, trace, variable
diff --git a/doc/Alloc.3 b/doc/Alloc.3
index ca4f949..585704a 100644
--- a/doc/Alloc.3
+++ b/doc/Alloc.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Alloc 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Alloc, Tcl_Free, Tcl_Realloc, Tcl_AttemptAlloc, Tcl_AttemptRealloc, ckalloc, ckfree, ckrealloc, attemptckalloc, attemptckrealloc \- allocate or free heap memory
diff --git a/doc/AllowExc.3 b/doc/AllowExc.3
index ae595f1..2343e66 100644
--- a/doc/AllowExc.3
+++ b/doc/AllowExc.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_AllowExceptions 3 7.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_AllowExceptions \- allow all exceptions in next script evaluation
diff --git a/doc/AppInit.3 b/doc/AppInit.3
index e4ae971..3e47c1f 100644
--- a/doc/AppInit.3
+++ b/doc/AppInit.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_AppInit 3 7.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_AppInit \- perform application-specific initialization
diff --git a/doc/AssocData.3 b/doc/AssocData.3
index 59c26a4..f819acb 100644
--- a/doc/AssocData.3
+++ b/doc/AssocData.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SetAssocData 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetAssocData, Tcl_SetAssocData, Tcl_DeleteAssocData \- manage associations of string keys and user specified data with Tcl interpreters
diff --git a/doc/Async.3 b/doc/Async.3
index d02f76d..558b511 100644
--- a/doc/Async.3
+++ b/doc/Async.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_AsyncCreate 3 7.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_AsyncCreate, Tcl_AsyncMark, Tcl_AsyncInvoke, Tcl_AsyncDelete, Tcl_AsyncReady \- handle asynchronous events
diff --git a/doc/BackgdErr.3 b/doc/BackgdErr.3
index 3116671..4ebcb60 100644
--- a/doc/BackgdErr.3
+++ b/doc/BackgdErr.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_BackgroundError 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_BackgroundException, Tcl_BackgroundError \- report Tcl exception that occurred in background processing
diff --git a/doc/Backslash.3 b/doc/Backslash.3
index 8b399fc..f121c7c 100644
--- a/doc/Backslash.3
+++ b/doc/Backslash.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Backslash 3 "8.1" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Backslash \- parse a backslash sequence
diff --git a/doc/BoolObj.3 b/doc/BoolObj.3
index 395d159..5c8414d 100644
--- a/doc/BoolObj.3
+++ b/doc/BoolObj.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_BooleanObj 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_NewBooleanObj, Tcl_SetBooleanObj, Tcl_GetBooleanFromObj \- store/retrieve boolean value in a Tcl_Obj
@@ -30,7 +30,7 @@ Points to the Tcl_Obj in which to store, or from which to
 retrieve a boolean value.
 .AP Tcl_Interp *interp in/out
 If a boolean value cannot be retrieved,
-an error message is left in the interpreter's result object
+an error message is left in the interpreter's result value
 unless \fIinterp\fR is NULL.
 .AP int *boolPtr out
 Points to place where \fBTcl_GetBooleanFromObj\fR
@@ -92,4 +92,4 @@ a \fBTCL_ERROR\fR return.
 Tcl_NewObj, Tcl_IsShared, Tcl_GetBoolean
 
 .SH KEYWORDS
-boolean, object
+boolean, value
diff --git a/doc/ByteArrObj.3 b/doc/ByteArrObj.3
index 77c94ac..a1f9330 100644
--- a/doc/ByteArrObj.3
+++ b/doc/ByteArrObj.3
@@ -4,11 +4,11 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_ByteArrayObj 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
-Tcl_NewByteArrayObj, Tcl_SetByteArrayObj, Tcl_GetByteArrayFromObj, Tcl_SetByteArrayLength \- manipulate Tcl objects as a arrays of bytes 
+Tcl_NewByteArrayObj, Tcl_SetByteArrayObj, Tcl_GetByteArrayFromObj, Tcl_SetByteArrayLength \- manipulate Tcl values as a arrays of bytes 
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -27,65 +27,65 @@ unsigned char *
 .SH ARGUMENTS
 .AS "const unsigned char" *lengthPtr in/out
 .AP "const unsigned char" *bytes in
-The array of bytes used to initialize or set a byte-array object. May be NULL
+The array of bytes used to initialize or set a byte-array value. May be NULL
 even if \fIlength\fR is non-zero.
 .AP int length in
 The length of the array of bytes.  It must be >= 0.
 .AP Tcl_Obj *objPtr in/out
-For \fBTcl_SetByteArrayObj\fR, this points to the object to be converted to
+For \fBTcl_SetByteArrayObj\fR, this points to the value to be converted to
 byte-array type.  For \fBTcl_GetByteArrayFromObj\fR and
-\fBTcl_SetByteArrayLength\fR, this points to the object from which to get
+\fBTcl_SetByteArrayLength\fR, this points to the value from which to get
 the byte-array value; if \fIobjPtr\fR does not already point to a byte-array
-object, it will be converted to one.
+value, it will be converted to one.
 .AP int *lengthPtr out
-If non-NULL, filled with the length of the array of bytes in the object.
+If non-NULL, filled with the length of the array of bytes in the value.
 .BE
 
 .SH DESCRIPTION
 .PP
-These procedures are used to create, modify, and read Tcl byte-array objects
-from C code.  Byte-array objects are typically used to hold the
+These procedures are used to create, modify, and read Tcl byte-array values
+from C code.  Byte-array values are typically used to hold the
 results of binary IO operations or data structures created with the
 \fBbinary\fR command.  In Tcl, an array of bytes is not equivalent to a
 string.  Conceptually, a string is an array of Unicode characters, while a
 byte-array is an array of 8-bit quantities with no implicit meaning.
 Accessor functions are provided to get the string representation of a
-byte-array or to convert an arbitrary object to a byte-array.  Obtaining the
-string representation of a byte-array object (by calling
+byte-array or to convert an arbitrary value to a byte-array.  Obtaining the
+string representation of a byte-array value (by calling
 \fBTcl_GetStringFromObj\fR) produces a properly formed UTF-8 sequence with a
 one-to-one mapping between the bytes in the internal representation and the
 UTF-8 characters in the string representation.
 .PP
 \fBTcl_NewByteArrayObj\fR and \fBTcl_SetByteArrayObj\fR will
-create a new object of byte-array type or modify an existing object to have a
-byte-array type.  Both of these procedures set the object's type to be
-byte-array and set the object's internal representation to a copy of the
+create a new value of byte-array type or modify an existing value to have a
+byte-array type.  Both of these procedures set the value's type to be
+byte-array and set the value's internal representation to a copy of the
 array of bytes given by \fIbytes\fR. \fBTcl_NewByteArrayObj\fR returns a
-pointer to a newly allocated object with a reference count of zero.
+pointer to a newly allocated value with a reference count of zero.
 \fBTcl_SetByteArrayObj\fR invalidates any old string representation and, if
-the object is not already a byte-array object, frees any old internal
+the value is not already a byte-array value, frees any old internal
 representation. If \fIbytes\fR is NULL then the new byte array contains
 arbitrary values.
 .PP
-\fBTcl_GetByteArrayFromObj\fR converts a Tcl object to byte-array type and
-returns a pointer to the object's new internal representation as an array of
+\fBTcl_GetByteArrayFromObj\fR converts a Tcl value to byte-array type and
+returns a pointer to the value's new internal representation as an array of
 bytes.  The length of this array is stored in \fIlengthPtr\fR if
 \fIlengthPtr\fR is non-NULL.  The storage for the array of bytes is owned by
-the object and should not be freed.  The contents of the array may be
-modified by the caller only if the object is not shared and the caller
+the value and should not be freed.  The contents of the array may be
+modified by the caller only if the value is not shared and the caller
 invalidates the string representation.
 .PP
-\fBTcl_SetByteArrayLength\fR converts the Tcl object to byte-array type
-and changes the length of the object's internal representation as an
+\fBTcl_SetByteArrayLength\fR converts the Tcl value to byte-array type
+and changes the length of the value's internal representation as an
 array of bytes.  If \fIlength\fR is greater than the space currently
 allocated for the array, the array is reallocated to the new length; the
 newly allocated bytes at the end of the array have arbitrary values.  If
 \fIlength\fR is less than the space currently allocated for the array,
 the length of array is reduced to the new length.  The return value is a
-pointer to the object's new array of bytes.  
+pointer to the value's new array of bytes.  
 
 .SH "SEE ALSO"
 Tcl_GetStringFromObj, Tcl_NewObj, Tcl_IncrRefCount, Tcl_DecrRefCount
 
 .SH KEYWORDS
-object, byte array, utf, unicode, internationalization
+value, binary data, byte array, utf, unicode, internationalization
diff --git a/doc/CallDel.3 b/doc/CallDel.3
index dec4392..766621a 100644
--- a/doc/CallDel.3
+++ b/doc/CallDel.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CallWhenDeleted 3 7.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CallWhenDeleted, Tcl_DontCallWhenDeleted \- Arrange for callback when interpreter is deleted
diff --git a/doc/Cancel.3 b/doc/Cancel.3
index 80db3a3..5d258b7 100644
--- a/doc/Cancel.3
+++ b/doc/Cancel.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Cancel 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CancelEval, Tcl_Canceled \- cancel Tcl scripts
diff --git a/doc/ChnlStack.3 b/doc/ChnlStack.3
index 9ec38b4..b046cd2 100644
--- a/doc/ChnlStack.3
+++ b/doc/ChnlStack.3
@@ -3,8 +3,8 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-.so man.macros
 .TH Tcl_StackChannel 3 8.3 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/Class.3 b/doc/Class.3
index 28cea9b..7e421fe 100644
--- a/doc/Class.3
+++ b/doc/Class.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH Tcl_Class 3 0.1 TclOO "TclOO Library Functions"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -111,7 +111,7 @@ function. Note that the Tcl_Obj reference returned by \fBTcl_GetObjectName\fR
 is a shared reference.
 .PP
 Instances of classes are created using \fBTcl_NewObjectInstance\fR, which
-takes creates an object from any class (and which is internally called by both
+creates an object from any class (and which is internally called by both
 the \fBcreate\fR and \fBnew\fR methods of the \fBoo::class\fR class). It takes
 parameters that optionally give the name of the object and namespace to
 create, and which describe the arguments to pass to the class's constructor
diff --git a/doc/CmdCmplt.3 b/doc/CmdCmplt.3
index eeae039..25b372e 100644
--- a/doc/CmdCmplt.3
+++ b/doc/CmdCmplt.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CommandComplete 3 "" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CommandComplete \- Check for unmatched braces in a Tcl command
diff --git a/doc/Concat.3 b/doc/Concat.3
index c38bf82..58a0fb6 100644
--- a/doc/Concat.3
+++ b/doc/Concat.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Concat 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Concat \- concatenate a collection of strings
diff --git a/doc/CrtChannel.3 b/doc/CrtChannel.3
index 478ef0b..2335de1 100644
--- a/doc/CrtChannel.3
+++ b/doc/CrtChannel.3
@@ -4,8 +4,8 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-.so man.macros
 .TH Tcl_CreateChannel 3 8.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -250,8 +250,8 @@ the default value of 4096 is returned.
 .PP
 \fBTcl_SetChannelBufferSize\fR sets the size, in bytes, of buffers that
 will be allocated in subsequent operations on the channel to store input or
-output. The \fIsize\fR argument should be between ten and one million,
-allowing buffers of ten bytes to one million bytes. If \fIsize\fR is
+output. The \fIsize\fR argument should be between one and one million,
+allowing buffers of one byte to one million bytes. If \fIsize\fR is
 outside this range, \fBTcl_SetChannelBufferSize\fR sets the buffer size to
 4096.
 .PP
@@ -336,7 +336,7 @@ typedef struct Tcl_ChannelType {
 It is not necessary to provide implementations for all channel
 operations.  Those which are not necessary may be set to NULL in the
 struct: \fIblockModeProc\fR, \fIseekProc\fR, \fIsetOptionProc\fR,
-\fIgetOptionProc\fR, and \fIclose2Proc\fR, in addition to
+\fIgetOptionProc\fR, \fIgetHandleProc\fR, and \fIclose2Proc\fR, in addition to
 \fIflushProc\fR, \fIhandlerProc\fR, \fIthreadActionProc\fR, and
 \fItruncateProc\fR.  Other functions that cannot be implemented in a
 meaningful way should return \fBEINVAL\fR when called, to indicate
@@ -846,7 +846,7 @@ the generic options error message string.
 .PP
 It always returns \fBTCL_ERROR\fR
 .PP
-An error message is generated in \fIinterp\fR's result object to
+An error message is generated in \fIinterp\fR's result value to
 indicate that a command was invoked with a bad option.
 The message has the form
 .CS
diff --git a/doc/CrtChnlHdlr.3 b/doc/CrtChnlHdlr.3
index 1451e30..0ecd3c9 100644
--- a/doc/CrtChnlHdlr.3
+++ b/doc/CrtChnlHdlr.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH Tcl_CreateChannelHandler 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/CrtCloseHdlr.3 b/doc/CrtCloseHdlr.3
index a114f9c..bac2431 100644
--- a/doc/CrtCloseHdlr.3
+++ b/doc/CrtCloseHdlr.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH Tcl_CreateCloseHandler 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/CrtCommand.3 b/doc/CrtCommand.3
index f0a7b43..fca64ce 100644
--- a/doc/CrtCommand.3
+++ b/doc/CrtCommand.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CreateCommand 3 "" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CreateCommand \- implement new commands in C
@@ -41,18 +41,18 @@ will call \fIproc\fR to process the command.
 It differs from \fBTcl_CreateObjCommand\fR in that a new string-based
 command is defined;
 that is, a command procedure is defined that takes an array of
-argument strings instead of objects.
-The object-based command procedures registered by \fBTcl_CreateObjCommand\fR
+argument strings instead of values.
+The value-based command procedures registered by \fBTcl_CreateObjCommand\fR
 can execute significantly faster than the string-based command procedures
 defined by \fBTcl_CreateCommand\fR.
-This is because they take Tcl objects as arguments
-and those objects can retain an internal representation that
+This is because they take Tcl values as arguments
+and those values can retain an internal representation that
 can be manipulated more efficiently.
-Also, Tcl's interpreter now uses objects internally.
+Also, Tcl's interpreter now uses values internally.
 In order to invoke a string-based command procedure
 registered by \fBTcl_CreateCommand\fR,
 it must generate and fetch a string representation
-from each argument object before the call.
+from each argument value before the call.
 New commands should be defined using \fBTcl_CreateObjCommand\fR.
 We support \fBTcl_CreateCommand\fR for backwards compatibility.
 .PP
diff --git a/doc/CrtFileHdlr.3 b/doc/CrtFileHdlr.3
index cbc5e9f..c1bc1fa 100644
--- a/doc/CrtFileHdlr.3
+++ b/doc/CrtFileHdlr.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CreateFileHandler 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CreateFileHandler, Tcl_DeleteFileHandler \- associate procedure callbacks with files or devices (Unix only)
diff --git a/doc/CrtInterp.3 b/doc/CrtInterp.3
index a248cf4..679795e 100644
--- a/doc/CrtInterp.3
+++ b/doc/CrtInterp.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CreateInterp 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CreateInterp, Tcl_DeleteInterp, Tcl_InterpActive, Tcl_InterpDeleted \- create and delete Tcl command interpreters
@@ -41,8 +41,9 @@ may only be passed to Tcl routines called from the same thread as
 the original \fBTcl_CreateInterp\fR call.  It is not safe for multiple
 threads to pass the same token to Tcl's routines.
 The new interpreter is initialized with the built-in Tcl commands
-and with the variables documented in the \fBtclvars\fR manual page. To bind in
-additional commands, call \fBTcl_CreateCommand\fR.
+and with standard variables like \fBtcl_platform\fR and \fBenv\fR. To
+bind in additional commands, call \fBTcl_CreateCommand\fR, and to
+create additional variables, call \fBTcl_SetVar\fR.
 .PP
 \fBTcl_DeleteInterp\fR marks an interpreter as deleted; the interpreter
 will eventually be deleted when all calls to \fBTcl_Preserve\fR for it have
@@ -144,6 +145,6 @@ should be used to determine when an interpreter is a candidate for deletion
 due to inactivity.
 .VE 8.6
 .SH "SEE ALSO"
-Tcl_Preserve(3), Tcl_Release(3), tclvars(n)
+Tcl_Preserve(3), Tcl_Release(3)
 .SH KEYWORDS
 command, create, delete, interpreter
diff --git a/doc/CrtMathFnc.3 b/doc/CrtMathFnc.3
index 3f2c84e..84cde65 100644
--- a/doc/CrtMathFnc.3
+++ b/doc/CrtMathFnc.3
@@ -5,11 +5,18 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CreateMathFunc 3 8.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CreateMathFunc, Tcl_GetMathFuncInfo, Tcl_ListMathFuncs \- Define, query and enumerate math functions for expressions
+.SH "NOTICE OF EVENTUAL DEPRECATION"
+.PP
+The \fBTcl_CreateMathFunc\fR and \fBTcl_GetMathFuncInfo\fR functions
+are rendered somewhat obsolete by the ability to create functions for
+expressions by placing commands in the \fBtcl::mathfunc\fR namespace,
+as described in the \fBmathfunc\fR manual page; the API described on
+this page is not expected to be maintained indefinitely.
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -146,9 +153,9 @@ will not be modified.  The variable pointed to by \fInumArgsPointer\fR
 will contain -1, and no argument types will be stored in the variable
 pointed to by \fIargTypesPointer\fR.
 .PP
-\fBTcl_ListMathFuncs\fR returns a Tcl object containing a list of all
+\fBTcl_ListMathFuncs\fR returns a Tcl value containing a list of all
 the math functions defined in the interpreter whose name matches
-\fIpattern\fR.  The returned object has a reference count of zero.
+\fIpattern\fR.  The returned value has a reference count of zero.
 .SH "SEE ALSO"
 expr(n), info(n), Tcl_CreateObjCommand(3), Tcl_Free(3), Tcl_NewListObj(3)
 .SH KEYWORDS
diff --git a/doc/CrtObjCmd.3 b/doc/CrtObjCmd.3
index 343b3dd..e94c8cd 100644
--- a/doc/CrtObjCmd.3
+++ b/doc/CrtObjCmd.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CreateObjCommand 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CreateObjCommand, Tcl_DeleteCommand, Tcl_DeleteCommandFromToken, Tcl_GetCommandInfo, Tcl_GetCommandInfoFromToken, Tcl_SetCommandInfo, Tcl_SetCommandInfoFromToken, Tcl_GetCommandName, Tcl_GetCommandFullName, Tcl_GetCommandFromObj \- implement new commands in C
@@ -64,7 +64,7 @@ The command must not have been deleted.
 Pointer to structure containing various information about a
 Tcl command.
 .AP Tcl_Obj *objPtr in
-Object containing the name of a Tcl command.
+Value containing the name of a Tcl command.
 .BE
 .SH DESCRIPTION
 .PP
@@ -102,10 +102,10 @@ will be copies of the \fIclientData\fR and \fIinterp\fR arguments given to
 \fBTcl_CreateObjCommand\fR.  Typically, \fIclientData\fR points to an
 application-specific data structure that describes what to do when the
 command procedure is invoked. \fIObjc\fR and \fIobjv\fR describe the
-arguments to the command, \fIobjc\fR giving the number of argument objects
+arguments to the command, \fIobjc\fR giving the number of argument values
 (including the command name) and \fIobjv\fR giving the values of the
 arguments.  The \fIobjv\fR array will contain \fIobjc\fR values, pointing to
-the argument objects.  Unlike \fIargv\fR[\fIargv\fR] used in a
+the argument values.  Unlike \fIargv\fR[\fIargv\fR] used in a
 string-based command procedure, \fIobjv\fR[\fIobjc\fR] will not contain NULL.
 .PP
 Additionally, when \fIproc\fR is invoked, it must not modify the contents
@@ -115,9 +115,9 @@ cause memory to be lost and the runtime stack to be corrupted.  The
 \fBconst\fR in the declaration of \fIobjv\fR will cause ANSI-compliant
 compilers to report any such attempted assignment as an error.  However,
 it is acceptable to modify the internal representation of any individual
-object argument.  For instance, the user may call
+value argument.  For instance, the user may call
 \fBTcl_GetIntFromObj\fR on \fIobjv\fR[\fB2\fR] to obtain the integer
-representation of that object; that call may change the type of the object
+representation of that value; that call may change the type of the value
 that \fIobjv\fR[\fB2\fR] points at, but will not change where
 \fIobjv\fR[\fB2\fR] points.
 .PP
@@ -133,7 +133,7 @@ of the command,
 and in the case of \fBTCL_ERROR\fR this gives an error message.
 Before invoking a command procedure,
 \fBTcl_EvalObjEx\fR sets interpreter's result to
-point to an object representing an empty string, so simple
+point to a value representing an empty string, so simple
 commands can return an empty result by doing nothing at all.
 .PP
 The contents of the \fIobjv\fR array belong to Tcl and are not
@@ -225,7 +225,7 @@ if \fIisNativeObjectProc\fR has the value 1.
 The fields \fIobjProc\fR and \fIobjClientData\fR
 have the same meaning as the \fIproc\fR and \fIclientData\fR
 arguments to \fBTcl_CreateObjCommand\fR;
-they hold information about the object-based command procedure
+they hold information about the value-based command procedure
 that the Tcl interpreter calls to implement the command.
 The fields \fIproc\fR and \fIclientData\fR
 hold information about the string-based command procedure
@@ -235,7 +235,7 @@ this is the procedure passed to it;
 otherwise, this is a compatibility procedure
 registered by \fBTcl_CreateObjCommand\fR
 that simply calls the command's
-object-based procedure after converting its string arguments to Tcl objects.
+value-based procedure after converting its string arguments to Tcl values.
 The field \fIdeleteData\fR is the ClientData value
 to pass to \fIdeleteProc\fR;  it is normally the same as
 \fIclientData\fR but may be set independently using the
@@ -290,7 +290,7 @@ they need to keep it for a long time.
 \fBTcl_GetCommandFullName\fR produces the fully qualified name
 of a command from a command token.  
 The name, including all namespace prefixes,
-is appended to the object specified by \fIobjPtr\fR.
+is appended to the value specified by \fIobjPtr\fR.
 .PP
 \fBTcl_GetCommandFromObj\fR returns a token for the command
 specified by the name in a \fBTcl_Obj\fR.
@@ -299,4 +299,4 @@ Returns NULL if the command is not found.
 .SH "SEE ALSO"
 Tcl_CreateCommand(3), Tcl_ResetResult(3), Tcl_SetObjResult(3)
 .SH KEYWORDS
-bind, command, create, delete, namespace, object
+bind, command, create, delete, namespace, value
diff --git a/doc/CrtSlave.3 b/doc/CrtSlave.3
index 3863373..fdcef6f 100644
--- a/doc/CrtSlave.3
+++ b/doc/CrtSlave.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CreateSlave 3 7.6 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_IsSafe, Tcl_MakeSafe, Tcl_CreateSlave, Tcl_GetSlave, Tcl_GetMaster, Tcl_GetInterpPath, Tcl_CreateAlias, Tcl_CreateAliasObj, Tcl_GetAlias, Tcl_GetAliasObj, Tcl_ExposeCommand, Tcl_HideCommand \- manage multiple Tcl interpreters, aliases and hidden commands
@@ -78,10 +78,10 @@ Count of additional arguments to pass to the alias command.
 Vector of strings, the additional arguments to pass to the alias command.
 This storage is owned by the caller.
 .AP int objc in
-Count of additional object arguments to pass to the alias object command.
+Count of additional value arguments to pass to the aliased command.
 .AP Tcl_Obj **objv in
-Vector of Tcl_Obj structures, the additional object arguments to pass to
-the alias object command.
+Vector of Tcl_Obj structures, the additional value arguments to pass to
+the aliased command.
 This storage is owned by the caller.
 .AP Tcl_Interp **targetInterpPtr in
 Pointer to location to store the address of the interpreter where a target
@@ -97,11 +97,11 @@ Pointer to location to store a vector of strings, the additional arguments
 to pass to an alias. The location is in storage owned by the caller, the
 vector of strings is owned by the called function.
 .AP int *objcPtr out
-Pointer to location to store count of additional object arguments to be
+Pointer to location to store count of additional value arguments to be
 passed to the alias. The location is in storage owned by the caller.
 .AP Tcl_Obj ***objvPtr out
 Pointer to location to store a vector of Tcl_Obj structures, the additional
-arguments to pass to an object alias command. The location is in storage
+arguments to pass to an alias command. The location is in storage
 owned by the caller, the vector of Tcl_Obj structures is owned by the
 called function.
 .AP "const char" *cmdName in
@@ -165,13 +165,13 @@ of the relative path succeeds, \fBTCL_OK\fR is returned, else
 \fBTCL_ERROR\fR is returned and the \fIresult\fR field in
 \fIaskingInterp\fR contains the error message.
 .PP
-\fBTcl_CreateAlias\fR creates an object command named \fIslaveCmd\fR in
+\fBTcl_CreateAlias\fR creates a command named \fIslaveCmd\fR in
 \fIslaveInterp\fR that when invoked, will cause the command \fItargetCmd\fR
 to be invoked in \fItargetInterp\fR. The arguments specified by the strings
 contained in \fIargv\fR are always prepended to any arguments supplied in the
 invocation of \fIslaveCmd\fR and passed to \fItargetCmd\fR.
 This operation returns \fBTCL_OK\fR if it succeeds, or \fBTCL_ERROR\fR if
-it fails; in that case, an error message is left in the object result
+it fails; in that case, an error message is left in the value result
 of \fIslaveInterp\fR.
 Note that there are no restrictions on the ancestry relationship (as
 created by \fBTcl_CreateSlave\fR) between \fIslaveInterp\fR and
@@ -179,7 +179,7 @@ created by \fBTcl_CreateSlave\fR) between \fIslaveInterp\fR and
 restrictions on how they are related.
 .PP
 \fBTcl_CreateAliasObj\fR is similar to \fBTcl_CreateAlias\fR except 
-that it takes a vector of objects to pass as additional arguments instead
+that it takes a vector of values to pass as additional arguments instead
 of a vector of strings.
 .PP
 \fBTcl_GetAlias\fR returns information about an alias \fIaliasName\fR
@@ -202,7 +202,7 @@ command, or the operation will return \fBTCL_ERROR\fR and leave an error
 message in the \fIresult\fR field in \fIinterp\fR.
 If an exposed command named \fIcmdName\fR already exists,
 the operation returns \fBTCL_ERROR\fR and leaves an error message in the
-object result of \fIinterp\fR.
+value result of \fIinterp\fR.
 If the operation succeeds, it returns \fBTCL_OK\fR.
 After executing this command, attempts to use \fIcmdName\fR in a call to
 \fBTcl_Eval\fR or with the Tcl \fBeval\fR command will again succeed.
@@ -212,10 +212,10 @@ exposed commands to the set of hidden commands, under the name
 \fIhiddenCmdName\fR.
 \fICmdName\fR must be the name of an existing exposed
 command, or the operation will return \fBTCL_ERROR\fR and leave an error
-message in the object result of \fIinterp\fR.
+message in the value result of \fIinterp\fR.
 Currently both \fIcmdName\fR and \fIhiddenCmdName\fR must not contain
 namespace qualifiers, or the operation will return \fBTCL_ERROR\fR and
-leave an error message in the object result of \fIinterp\fR.
+leave an error message in the value result of \fIinterp\fR.
 The \fICmdName\fR will be looked up in the global namespace, and not
 relative to the current namespace, even if the current namespace is not the
 global one.
diff --git a/doc/CrtTimerHdlr.3 b/doc/CrtTimerHdlr.3
index 2c9f90a..f3957c7 100644
--- a/doc/CrtTimerHdlr.3
+++ b/doc/CrtTimerHdlr.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CreateTimerHandler 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CreateTimerHandler, Tcl_DeleteTimerHandler \- call a procedure at a given time
diff --git a/doc/CrtTrace.3 b/doc/CrtTrace.3
index 3689add..239941f 100644
--- a/doc/CrtTrace.3
+++ b/doc/CrtTrace.3
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_CreateTrace 3 "" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CreateTrace, Tcl_CreateObjTrace, Tcl_DeleteTrace \- arrange for command execution to be traced
diff --git a/doc/DString.3 b/doc/DString.3
index a85b1cf..0e571d2 100644
--- a/doc/DString.3
+++ b/doc/DString.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_DString 3 7.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_DStringInit, Tcl_DStringAppend, Tcl_DStringAppendElement, Tcl_DStringStartSublist, Tcl_DStringEndSublist, Tcl_DStringLength, Tcl_DStringValue, Tcl_DStringSetLength, Tcl_DStringTrunc, Tcl_DStringFree, Tcl_DStringResult, Tcl_DStringGetResult \- manipulate dynamic strings
diff --git a/doc/DetachPids.3 b/doc/DetachPids.3
index 0535cd8..39a51d3 100644
--- a/doc/DetachPids.3
+++ b/doc/DetachPids.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_DetachPids 3 "" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_DetachPids, Tcl_ReapDetachedProcs, Tcl_WaitPid \- manage child processes in background
diff --git a/doc/DictObj.3 b/doc/DictObj.3
index a5dc9e5..90ca9e3 100644
--- a/doc/DictObj.3
+++ b/doc/DictObj.3
@@ -4,12 +4,12 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_DictObj 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-Tcl_NewDictObj, Tcl_DictObjPut, Tcl_DictObjGet, Tcl_DictObjRemove, Tcl_DictObjSize, Tcl_DictObjFirst, Tcl_DictObjNext, Tcl_DictObjDone, Tcl_DictObjPutKeyList, Tcl_DictObjRemoveKeyList \- manipulate Tcl objects as dictionaries
+Tcl_NewDictObj, Tcl_DictObjPut, Tcl_DictObjGet, Tcl_DictObjRemove, Tcl_DictObjSize, Tcl_DictObjFirst, Tcl_DictObjNext, Tcl_DictObjDone, Tcl_DictObjPutKeyList, Tcl_DictObjRemoveKeyList \- manipulate Tcl values as dictionaries
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -47,23 +47,23 @@ int
 .SH ARGUMENTS
 .AS Tcl_DictSearch "**valuePtrPtr" in/out
 .AP Tcl_Interp *interp in
-If an error occurs while converting an object to be a dictionary object,
-an error message is left in the interpreter's result object
+If an error occurs while converting a value to be a dictionary value,
+an error message is left in the interpreter's result value
 unless \fIinterp\fR is NULL.
 .AP Tcl_Obj *dictPtr in/out
-Points to the dictionary object to be manipulated.
-If \fIdictPtr\fR does not already point to a dictionary object,
+Points to the dictionary value to be manipulated.
+If \fIdictPtr\fR does not already point to a dictionary value,
 an attempt will be made to convert it to one.
 .AP Tcl_Obj *keyPtr in
 Points to the key for the key/value pair being manipulated within the
-dictionary object.
+dictionary value.
 .AP Tcl_Obj **keyPtrPtr out
 Points to a variable that will have the key from a key/value pair
 placed within it.  May be NULL to indicate that the caller is not
 interested in the key.
 .AP Tcl_Obj *valuePtr in
 Points to the value for the key/value pair being manipulated within the
-dictionary object (or sub-object, in the case of
+dictionary value (or sub-value, in the case of
 \fBTcl_DictObjPutKeyList\fR.)
 .AP Tcl_Obj **valuePtrPtr out
 Points to a variable that will have the value from a key/value pair
@@ -88,15 +88,15 @@ completed, and a zero otherwise.
 Indicates the number of keys that will be supplied in the \fIkeyv\fR
 array.
 .AP "Tcl_Obj *const" *keyv in
-Array of \fIkeyc\fR pointers to objects that
+Array of \fIkeyc\fR pointers to values that
 \fBTcl_DictObjPutKeyList\fR and \fBTcl_DictObjRemoveKeyList\fR will
 use to locate the key/value pair to manipulate within the
-sub-dictionaries of the main dictionary object passed to them.
+sub-dictionaries of the main dictionary value passed to them.
 .BE
 
 .SH DESCRIPTION
 .PP
-Tcl dictionary objects have an internal representation that supports
+Tcl dictionary values have an internal representation that supports
 efficient mapping from keys to values and which guarantees that the
 particular ordering of keys within the dictionary remains the same
 modulo any keys being deleted (which removes them from the order) or
@@ -106,11 +106,11 @@ keys of the dictionary, and each will be followed (in the odd-valued
 index) by the value associated with that key.
 .PP
 The procedures described in this man page are used to
-create, modify, index, and iterate over dictionary objects from C code.
+create, modify, index, and iterate over dictionary values from C code.
 .PP
-\fBTcl_NewDictObj\fR creates a new, empty dictionary object.  The
-string representation of the object will be invalid, and the reference
-count of the object will be zero.
+\fBTcl_NewDictObj\fR creates a new, empty dictionary value.  The
+string representation of the value will be invalid, and the reference
+count of the value will be zero.
 .PP
 \fBTcl_DictObjGet\fR looks up the given key within the given
 dictionary and writes a pointer to the value associated with that key
@@ -217,7 +217,7 @@ if (\fBTcl_DictObjFirst\fR(interp, objPtr, &search,
 for (; !done ; \fBTcl_DictObjNext\fR(&search, &key, &value, &done)) {
     /*
      * Note that strcmp() is not a good way of comparing
-     * objects and is just used here for demonstration
+     * values and is just used here for demonstration
      * purposes.
      */
     if (!strcmp(Tcl_GetString(key), Tcl_GetString(value))) {
@@ -231,4 +231,4 @@ return TCL_OK;
 .SH "SEE ALSO"
 Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_InitObjHashTable
 .SH KEYWORDS
-dict, dict object, dictionary, dictionary object, hash table, iteration, object
+dict, dict value, dictionary, dictionary value, hash table, iteration, value
diff --git a/doc/DoOneEvent.3 b/doc/DoOneEvent.3
index 9bdf926..6f08b34 100644
--- a/doc/DoOneEvent.3
+++ b/doc/DoOneEvent.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_DoOneEvent 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_DoOneEvent \- wait for events and invoke event handlers
diff --git a/doc/DoWhenIdle.3 b/doc/DoWhenIdle.3
index 27a4b8c..3e28b4d 100644
--- a/doc/DoWhenIdle.3
+++ b/doc/DoWhenIdle.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_DoWhenIdle 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_DoWhenIdle, Tcl_CancelIdleCall \- invoke a procedure when there are no pending events
diff --git a/doc/DoubleObj.3 b/doc/DoubleObj.3
index 12818b0..4b422d4 100644
--- a/doc/DoubleObj.3
+++ b/doc/DoubleObj.3
@@ -4,11 +4,11 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_DoubleObj 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
-Tcl_NewDoubleObj, Tcl_SetDoubleObj, Tcl_GetDoubleFromObj \- manipulate Tcl objects as floating-point values
+Tcl_NewDoubleObj, Tcl_SetDoubleObj, Tcl_GetDoubleFromObj \- manipulate Tcl values as floating-point values
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -23,11 +23,11 @@ int
 .SH ARGUMENTS
 .AS Tcl_Interp doubleValue in/out
 .AP double doubleValue in
-A double-precision floating-point value used to initialize or set a Tcl object.
+A double-precision floating-point value used to initialize or set a Tcl value.
 .AP Tcl_Obj *objPtr in/out
-For \fBTcl_SetDoubleObj\fR, this points to the object in which to store a
+For \fBTcl_SetDoubleObj\fR, this points to the value in which to store a
 double value.
-For \fBTcl_GetDoubleFromObj\fR, this refers to the object
+For \fBTcl_GetDoubleFromObj\fR, this refers to the value
 from which to retrieve a double value. 
 .AP Tcl_Interp *interp in/out
 When non-NULL, an error message is left here when double value retrieval fails.
@@ -37,21 +37,21 @@ Points to place to store the double value obtained from \fIobjPtr\fR.
 
 .SH DESCRIPTION
 .PP
-These procedures are used to create, modify, and read Tcl objects that
+These procedures are used to create, modify, and read Tcl values that
 hold double-precision floating-point values.
 .PP
-\fBTcl_NewDoubleObj\fR creates and returns a new Tcl object initialized to
-the double value \fIdoubleValue\fR.  The returned Tcl object is unshared.
+\fBTcl_NewDoubleObj\fR creates and returns a new Tcl value initialized to
+the double value \fIdoubleValue\fR.  The returned Tcl value is unshared.
 .PP
-\fBTcl_SetDoubleObj\fR sets the value of an existing Tcl object pointed to
+\fBTcl_SetDoubleObj\fR sets the value of an existing Tcl value pointed to
 by \fIobjPtr\fR to the double value \fIdoubleValue\fR.  The \fIobjPtr\fR
-argument must point to an unshared Tcl object.  Any attempt to set the value
-of a shared Tcl object violates Tcl's copy-on-write policy.  Any existing
-string representation or internal representation in the unshared Tcl object
+argument must point to an unshared Tcl value.  Any attempt to set the value
+of a shared Tcl value violates Tcl's copy-on-write policy.  Any existing
+string representation or internal representation in the unshared Tcl value
 will be freed as a consequence of setting the new value.
 .PP
 \fBTcl_GetDoubleFromObj\fR attempts to retrieve a double value from the
-Tcl object \fIobjPtr\fR.  If the attempt succeeds, then \fBTCL_OK\fR is
+Tcl value \fIobjPtr\fR.  If the attempt succeeds, then \fBTCL_OK\fR is
 returned, and the double value is written to the storage pointed to by
 \fIdoublePtr\fR.  If the attempt fails, then \fBTCL_ERROR\fR is returned,
 and if \fIinterp\fR is non-NULL, an error message is left in \fIinterp\fR.
@@ -61,4 +61,4 @@ calls to \fBTcl_GetDoubleFromObj\fR more efficient.
 .SH "SEE ALSO"
 Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_GetObjResult
 .SH KEYWORDS
-double, double object, double type, internal representation, object, object type, string representation
+double, double value, double type, internal representation, value, value type, string representation
diff --git a/doc/DumpActiveMemory.3 b/doc/DumpActiveMemory.3
index 1f6cb46..f4d78d1 100644
--- a/doc/DumpActiveMemory.3
+++ b/doc/DumpActiveMemory.3
@@ -3,8 +3,8 @@
 '\" Copyright (c) 2000 by Scriptics Corporation.
 '\" All rights reserved.
 '\" 
-.so man.macros
 .TH "Tcl_DumpActiveMemory" 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_DumpActiveMemory, Tcl_InitMemory, Tcl_ValidateAllMemory \- Validated memory allocation interface
diff --git a/doc/Encoding.3 b/doc/Encoding.3
index 7bcb285..6664b3b 100644
--- a/doc/Encoding.3
+++ b/doc/Encoding.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_GetEncoding 3 "8.1" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetEncoding, Tcl_FreeEncoding, Tcl_GetEncodingFromObj, Tcl_ExternalToUtfDString, Tcl_ExternalToUtf, Tcl_UtfToExternalDString, Tcl_UtfToExternal, Tcl_WinTCharToUtf, Tcl_WinUtfToTChar, Tcl_GetEncodingName, Tcl_SetSystemEncoding, Tcl_GetEncodingNameFromEnvironment, Tcl_GetEncodingNames, Tcl_CreateEncoding, Tcl_GetEncodingSearchPath, Tcl_SetEncodingSearchPath, Tcl_GetDefaultEncodingDir, Tcl_SetDefaultEncodingDir \- procedures for creating and using encodings
@@ -257,47 +257,13 @@ is filled with the corresponding number of bytes that were stored in
 .PP
 \fBTcl_WinUtfToTChar\fR and \fBTcl_WinTCharToUtf\fR are
 Windows-only convenience
-functions for converting between UTF-8 and Windows strings.  On Windows 95
-(as with the Unix operating system),
-all strings exchanged between Tcl and the operating system are
-.QW "char"
-based.  On Windows NT, some strings exchanged between Tcl and the
-operating system are
-.QW "char"
-oriented while others are in Unicode.  By
-convention, in Windows a TCHAR is a character in the ANSI code page
-on Windows 95 and a Unicode character on Windows NT.
-.PP
-If you planned to use the same
-.QW "char"
-based interfaces on both Windows
-95 and Windows NT, you could use \fBTcl_UtfToExternal\fR and
-\fBTcl_ExternalToUtf\fR (or their \fBTcl_DString\fR equivalents) with an
-encoding of NULL (the current system encoding).  On the other hand,
-if you planned to use the Unicode interface when running on Windows NT
-and the
-.QW "char"
-interfaces when running on Windows 95, you would have
-to perform the following type of test over and over in your program
-(as represented in pseudo-code):
-.PP
-.CS
-if (running NT) {
-    encoding <- Tcl_GetEncoding("unicode");
-    nativeBuffer <- Tcl_UtfToExternal(encoding, utfBuffer);
-    Tcl_FreeEncoding(encoding);
-} else {
-    nativeBuffer <- Tcl_UtfToExternal(NULL, utfBuffer);
-}
-.CE
-.PP
-\fBTcl_WinUtfToTChar\fR and \fBTcl_WinTCharToUtf\fR automatically
-handle this test and use the proper encoding based on the current
-operating system.  \fBTcl_WinUtfToTChar\fR returns a pointer to
-a TCHAR string, and \fBTcl_WinTCharToUtf\fR expects a TCHAR string
-pointer as the \fIsrc\fR string.  Otherwise, these functions
-behave identically to \fBTcl_UtfToExternalDString\fR and
-\fBTcl_ExternalToUtfDString\fR.
+functions for converting between UTF-8 and Windows strings
+based on the TCHAR type which is by convention
+a Unicode character on Windows NT.
+These functions are essentially wrappers around
+\fBTcl_UtfToExternalDString\fR and
+\fBTcl_ExternalToUtfDString\fR that convert to and from the
+Unicode encoding.
 .PP
 \fBTcl_GetEncodingName\fR is roughly the inverse of \fBTcl_GetEncoding\fR.
 Given an \fIencoding\fR, the return value is the \fIname\fR argument that
diff --git a/doc/Ensemble.3 b/doc/Ensemble.3
index cd69bbd..8457ddc 100644
--- a/doc/Ensemble.3
+++ b/doc/Ensemble.3
@@ -6,8 +6,8 @@
 '\" 
 '\" This documents the C API introduced in TIP#235
 '\" 
-.so man.macros
 .TH Tcl_Ensemble 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CreateEnsemble, Tcl_FindEnsemble, Tcl_GetEnsembleFlags, Tcl_GetEnsembleMappingDict, Tcl_GetEnsembleNamespace, Tcl_GetEnsembleParameterList, Tcl_GetEnsembleUnknownHandler, Tcl_GetEnsembleSubcommandList, Tcl_IsEnsemble, Tcl_SetEnsembleFlags, Tcl_SetEnsembleMappingDict, Tcl_SetEnsembleParameterList, Tcl_SetEnsembleSubcommandList, Tcl_SetEnsembleUnknownHandler \- manipulate ensemble commands
diff --git a/doc/Environment.3 b/doc/Environment.3
index 3753f43..85880b4 100644
--- a/doc/Environment.3
+++ b/doc/Environment.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_PutEnv 3 "7.5" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_PutEnv \- procedures to manipulate the environment
@@ -33,6 +33,6 @@ Tcl-based applications using \fBputenv\fR should redefine it to
 \fBTcl_PutEnv\fR so that they will interface properly to the Tcl
 runtime.
 .SH "SEE ALSO"
-tclvars(n)
+env(n)
 .SH KEYWORDS
 environment, variable
diff --git a/doc/Eval.3 b/doc/Eval.3
index b776e93..c104f7a 100644
--- a/doc/Eval.3
+++ b/doc/Eval.3
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Eval 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_EvalObjEx, Tcl_EvalFile, Tcl_EvalObjv, Tcl_Eval, Tcl_EvalEx, Tcl_GlobalEval, Tcl_GlobalEvalObj, Tcl_VarEval, Tcl_VarEvalVA \- execute Tcl scripts
@@ -47,17 +47,17 @@ int
 Interpreter in which to execute the script.  The interpreter's result is
 modified to hold the result or error message from the script.
 .AP Tcl_Obj *objPtr in
-A Tcl object containing the script to execute.
+A Tcl value containing the script to execute.
 .AP int flags in
 ORed combination of flag bits that specify additional options.
 \fBTCL_EVAL_GLOBAL\fR and \fBTCL_EVAL_DIRECT\fR are currently supported.
 .AP "const char" *fileName in
 Name of a file containing a Tcl script.
 .AP int objc in
-The number of objects in the array pointed to by \fIobjPtr\fR;
+The number of values in the array pointed to by \fIobjPtr\fR;
 this is also the number of words in the command.
 .AP Tcl_Obj **objv in
-Points to an array of pointers to objects; each object holds the
+Points to an array of pointers to values; each value holds the
 value of a single word in the command to execute.
 .AP int numBytes in
 The number of bytes in \fIscript\fR, not including any
@@ -83,7 +83,7 @@ If this is the first time \fIobjPtr\fR has been executed,
 its commands are compiled into bytecode instructions
 which are then executed.  The
 bytecodes are saved in \fIobjPtr\fR so that the compilation step
-can be skipped if the object is evaluated again in the future.
+can be skipped if the value is evaluated again in the future.
 .PP
 The return value from \fBTcl_EvalObjEx\fR (and all the other procedures
 described here) is a Tcl completion code with
@@ -111,15 +111,15 @@ which will be safely substituted by the Tcl interpreter into
 .PP
 \fBTcl_EvalObjv\fR executes a single pre-parsed command instead of a
 script.  The \fIobjc\fR and \fIobjv\fR arguments contain the values
-of the words for the Tcl command, one word in each object in
+of the words for the Tcl command, one word in each value in
 \fIobjv\fR.  \fBTcl_EvalObjv\fR evaluates the command and returns
 a completion code and result just like \fBTcl_EvalObjEx\fR.
 The caller of \fBTcl_EvalObjv\fR has to manage the reference count of the
-elements of \fIobjv\fR, insuring that the objects are valid until
+elements of \fIobjv\fR, insuring that the values are valid until
 \fBTcl_EvalObjv\fR returns.  
 .PP
 \fBTcl_Eval\fR is similar to \fBTcl_EvalObjEx\fR except that the script to
-be executed is supplied as a string instead of an object and no compilation
+be executed is supplied as a string instead of a value and no compilation
 occurs.  The string should be a proper UTF-8 string as converted by
 \fBTcl_ExternalToUtfDString\fR or \fBTcl_ExternalToUtf\fR when it is known
 to possibly contain upper ASCII characters whose possible combinations
@@ -129,7 +129,7 @@ bytecodes.  In situations where it is known that the script will never be
 executed again, \fBTcl_Eval\fR may be faster than \fBTcl_EvalObjEx\fR.
  \fBTcl_Eval\fR returns a completion code and result just like 
 \fBTcl_EvalObjEx\fR.  Note: for backward compatibility with versions before
-Tcl 8.0, \fBTcl_Eval\fR copies the object result in \fIinterp\fR to
+Tcl 8.0, \fBTcl_Eval\fR copies the value result in \fIinterp\fR to
 \fIinterp->result\fR (use is deprecated) where it can be accessed directly.
  This makes \fBTcl_Eval\fR somewhat slower than \fBTcl_EvalEx\fR, which
 does not do the copy.
@@ -170,7 +170,7 @@ other procedures.  If this flag bit is set, the script is not
 compiled to bytecodes; instead it is executed directly
 as is done by \fBTcl_EvalEx\fR.  The
 \fBTCL_EVAL_DIRECT\fR flag is useful in situations where the
-contents of an object are going to change immediately, so the
+contents of a value are going to change immediately, so the
 bytecodes will not be reused in a future execution.  In this case,
 it is faster to execute the script directly.
 .TP 23
@@ -208,4 +208,4 @@ This means that top-level applications should never see a return code
 from \fBTcl_EvalObjEx\fR other then \fBTCL_OK\fR or \fBTCL_ERROR\fR.
 
 .SH KEYWORDS
-execute, file, global, object, result, script
+execute, file, global, result, script, value
diff --git a/doc/Exit.3 b/doc/Exit.3
index fd251c7..3ea09bf 100644
--- a/doc/Exit.3
+++ b/doc/Exit.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Exit 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Exit, Tcl_Finalize, Tcl_CreateExitHandler, Tcl_DeleteExitHandler, Tcl_ExitThread, Tcl_FinalizeThread, Tcl_CreateThreadExitHandler, Tcl_DeleteThreadExitHandler, Tcl_SetExitProc \- end the application or thread (and invoke exit handlers)
diff --git a/doc/ExprLong.3 b/doc/ExprLong.3
index ef93284..1615f88 100644
--- a/doc/ExprLong.3
+++ b/doc/ExprLong.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_ExprLong 3 7.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_ExprLong, Tcl_ExprDouble, Tcl_ExprBoolean, Tcl_ExprString \- evaluate an expression
@@ -49,11 +49,11 @@ given by the \fIexpr\fR argument
 and return the result in one of four different forms.
 The expression can have any of the forms accepted by the \fBexpr\fR command.
 Note that these procedures have been largely replaced by the
-object-based procedures \fBTcl_ExprLongObj\fR, \fBTcl_ExprDoubleObj\fR,
+value-based procedures \fBTcl_ExprLongObj\fR, \fBTcl_ExprDoubleObj\fR,
 \fBTcl_ExprBooleanObj\fR, and \fBTcl_ExprObj\fR.
-Those object-based procedures evaluate an expression held in a Tcl object
+Those value-based procedures evaluate an expression held in a Tcl value
 instead of a string.
-The object argument can retain an internal representation
+The value argument can retain an internal representation
 that is more efficient to execute.
 .PP
 The \fIinterp\fR argument refers to an interpreter used to
@@ -103,4 +103,4 @@ string stored in the interpreter's result.
 Tcl_ExprLongObj, Tcl_ExprDoubleObj, Tcl_ExprBooleanObj, Tcl_ExprObj
 
 .SH KEYWORDS
-boolean, double, evaluate, expression, integer, object, string
+boolean, double, evaluate, expression, integer, value, string
diff --git a/doc/ExprLongObj.3 b/doc/ExprLongObj.3
index c8a564d..35edb5f 100644
--- a/doc/ExprLongObj.3
+++ b/doc/ExprLongObj.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_ExprLongObj 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_ExprLongObj, Tcl_ExprDoubleObj, Tcl_ExprBooleanObj, Tcl_ExprObj \- evaluate an expression
@@ -29,7 +29,7 @@ int
 .AP Tcl_Interp *interp in
 Interpreter in whose context to evaluate \fIobjPtr\fR.
 .AP Tcl_Obj *objPtr in
-Pointer to an object containing the expression to evaluate.
+Pointer to a value containing the expression to evaluate.
 .AP long *longPtr out
 Pointer to location in which to store the integer value of the
 expression.
@@ -40,7 +40,7 @@ expression.
 Pointer to location in which to store the 0/1 boolean value of the
 expression.
 .AP Tcl_Obj **resultPtrPtr out
-Pointer to location in which to store a pointer to the object
+Pointer to location in which to store a pointer to the value
 that is the result of the expression.
 .BE
 
@@ -93,14 +93,14 @@ or
 or else an error occurs.
 .PP
 If \fBTcl_ExprObj\fR successfully evaluates the expression,
-it stores a pointer to the Tcl object
+it stores a pointer to the Tcl value
 containing the expression's value at \fI*resultPtrPtr\fR.
 In this case, the caller is responsible for calling
-\fBTcl_DecrRefCount\fR to decrement the object's reference count
-when it is finished with the object.
+\fBTcl_DecrRefCount\fR to decrement the value's reference count
+when it is finished with the value.
 
 .SH "SEE ALSO"
 Tcl_ExprLong, Tcl_ExprDouble, Tcl_ExprBoolean, Tcl_ExprString, Tcl_GetObjResult
 
 .SH KEYWORDS
-boolean, double, evaluate, expression, integer, object, string
+boolean, double, evaluate, expression, integer, value, string
diff --git a/doc/FileSystem.3 b/doc/FileSystem.3
index d7198b1..6a8158c 100644
--- a/doc/FileSystem.3
+++ b/doc/FileSystem.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Filesystem 3 8.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_FSRegister, Tcl_FSUnregister, Tcl_FSData, Tcl_FSMountsChanged, Tcl_FSGetFileSystemForPath, Tcl_FSGetPathType, Tcl_FSCopyFile, Tcl_FSCopyDirectory, Tcl_FSCreateDirectory, Tcl_FSDeleteFile, Tcl_FSRemoveDirectory, Tcl_FSRenameFile, Tcl_FSListVolumes, Tcl_FSEvalFile, Tcl_FSEvalFileEx, Tcl_FSLoadFile, Tcl_FSUnloadFile, Tcl_FSMatchInDirectory, Tcl_FSLink, Tcl_FSLstat, Tcl_FSUtime, Tcl_FSFileAttrsGet, Tcl_FSFileAttrsSet, Tcl_FSFileAttrStrings, Tcl_FSStat, Tcl_FSAccess, Tcl_FSOpenFileChannel, Tcl_FSGetCwd, Tcl_FSChdir, Tcl_FSPathSeparator, Tcl_FSJoinPath, Tcl_FSSplitPath, Tcl_FSEqualPaths, Tcl_FSGetNormalizedPath, Tcl_FSJoinToPath, Tcl_FSConvertToPathType, Tcl_FSGetInternalRep, Tcl_FSGetTranslatedPath, Tcl_FSGetTranslatedStringPath, Tcl_FSNewNativePath, Tcl_FSGetNativePath, Tcl_FSFileSystemInfo, Tcl_GetAccessTimeFromStat, Tcl_GetBlockSizeFromStat, Tcl_GetBlocksFromStat, Tcl_GetChangeTimeFromStat, Tcl_GetDeviceTypeFromStat, Tcl_GetFSDeviceFromStat, Tcl_GetFSInodeFromStat, Tcl_GetGroupIdFromStat, Tcl_GetLinkCountFromStat, Tcl_GetModeFromStat, Tcl_GetModificationTimeFromStat, Tcl_GetSizeFromStat, Tcl_GetUserIdFromStat, Tcl_AllocStatBuf \- procedures to interact with any filesystem
@@ -86,7 +86,7 @@ int
 int
 \fBTcl_FSFileAttrsSet\fR(\fIinterp, int index, pathPtr, Tcl_Obj *objPtr\fR)
 .sp
-const char **
+const char *const *
 \fBTcl_FSFileAttrStrings\fR(\fIpathPtr, objPtrRef\fR)
 .sp
 int
@@ -192,8 +192,8 @@ int
 Points to a structure containing the addresses of procedures that
 can be called to perform the various filesystem operations.
 .AP Tcl_Obj *pathPtr in
-The path represented by this object is used for the operation in
-question. If the object does not already have an internal \fBpath\fR
+The path represented by this value is used for the operation in
+question. If the value does not already have an internal \fBpath\fR
 representation, it will be converted to have one.
 .AP Tcl_Obj *srcPathPtr in
 As for \fIpathPtr\fR, but used for the source file for a copy or
@@ -213,12 +213,12 @@ this structure will be returned. This parameter may be NULL.
 Interpreter to use either for results, evaluation, or reporting error
 messages.
 .AP ClientData clientData in
-The native description of the path object to create.
+The native description of the path value to create.
 .AP Tcl_Obj *firstPtr in
-The first of two path objects to compare. The object may be converted
+The first of two path values to compare. The value may be converted
 to \fBpath\fR type.
 .AP Tcl_Obj *secondPtr in
-The second of two path objects to compare. The object may be converted
+The second of two path values to compare. The value may be converted
 to \fBpath\fR type.
 .AP Tcl_Obj *listObj in
 The list of path elements to operate on with a \fBjoin\fR operation.
@@ -226,12 +226,12 @@ The list of path elements to operate on with a \fBjoin\fR operation.
 If non-negative, the number of elements in the \fIlistObj\fR which should
 be joined together. If negative, then all elements are joined.
 .AP Tcl_Obj **errorPtr out
-In the case of an error, filled with an object containing the name of
+In the case of an error, filled with a value containing the name of
 the file which caused an error in the various copy/rename operations.
 .AP Tcl_Obj **objPtrRef out
-Filled with an object containing the result of the operation.
+Filled with a value containing the result of the operation.
 .AP Tcl_Obj *resultPtr out
-Pre-allocated object in which to store (using
+Pre-allocated value in which to store (using
 \fBTcl_ListObjAppendElement\fR) the list of
 files or directories which are successfully matched.
 .AP int mode in
@@ -331,17 +331,17 @@ buffer is actually
 declared to be, allowing the same code to be used both on systems with
 and systems without support for files larger than 2GB in size.
 .PP
-The \fBTcl_FS\fR API is objectified and may cache internal
+The \fBTcl_FS\fR API is \fBTcl_Obj\fR-ified and may cache internal
 representations and other path-related strings (e.g.\ the current working
-directory). One side-effect of this is that one must not pass in objects
+directory). One side-effect of this is that one must not pass in values
 with a reference count of zero to any of these functions. If such calls were
 handled, they might result
 in memory leaks (under some circumstances, the filesystem code may wish
-to retain a reference to the passed in object, and so one must not assume
-that after any of these calls return, the object still has a reference count of
+to retain a reference to the passed in value, and so one must not assume
+that after any of these calls return, the value still has a reference count of
 zero - it may have been incremented) or in a direct segmentation fault
 (or other memory access error)
-due to the object being freed part way through the complex object
+due to the value being freed part way through the complex value
 manipulation required to ensure that the path is fully normalized and
 absolute for filesystem determination. The practical lesson to learn
 from this is that
@@ -354,9 +354,9 @@ Tcl_DecrRefCount(path);
 .PP
 is wrong, and may cause memory errors. The \fIpath\fR must have its
 reference count incremented before passing it in, or
-decrementing it. For this reason, objects with a reference count of zero are
+decrementing it. For this reason, values with a reference count of zero are
 considered not to be valid filesystem paths and calling any Tcl_FS API
-function with such an object will result in no action being taken.
+function with such a value will result in no action being taken.
 .SS "FS API FUNCTIONS"
 \fBTcl_FSCopyFile\fR attempts to copy the file given by \fIsrcPathPtr\fR to the
 path name given by \fIdestPathPtr\fR. If the two paths given lie in the same
@@ -484,7 +484,7 @@ If the \fItoPtr\fR is NULL, a
 action is performed. The result
 is a Tcl_Obj specifying the contents of the symbolic link given by
 \fIlinkNamePtr\fR, or NULL if the link could not be read. The result is owned
-by the caller, which should call Tcl_DecrRefCount when the result is no
+by the caller, which should call \fBTcl_DecrRefCount\fR when the result is no
 longer needed. If the \fItoPtr\fR is not NULL, Tcl should create a link
 of one of the types passed in in the \fIlinkAction\fR flag. This flag is
 an ORed combination of \fBTCL_CREATE_SYMBOLIC_LINK\fR and \fBTCL_CREATE_HARD_LINK\fR.
@@ -523,7 +523,7 @@ values of the file given.
 attributes\fR subcommand. The appropriate function for the filesystem to
 which \fIpathPtr\fR belongs will be called.
 .PP
-If the result is \fBTCL_OK\fR, then an object was placed in
+If the result is \fBTCL_OK\fR, then a value was placed in
 \fIobjPtrRef\fR, which
 will only be temporarily valid (unless \fBTcl_IncrRefCount\fR is called).
 .PP
@@ -541,7 +541,7 @@ will take that list and first increment its reference count before using it.
 On completion of that use, Tcl will decrement its reference count. Hence if
 the list should be disposed of by Tcl when done, it should have a
 reference count of zero, and if the list should not be disposed of, the
-filesystem should ensure it retains a reference count to the object.
+filesystem should ensure it retains a reference count to the value.
 .PP
 \fBTcl_FSAccess\fR checks whether the process would be allowed to read,
 write or test for existence of the file (or other filesystem object)
@@ -622,29 +622,29 @@ The separator is returned as a Tcl_Obj containing a string of length
 .PP
 \fBTcl_FSJoinPath\fR takes the given Tcl_Obj, which must be a valid
 list (which is allowed to have a reference count of zero), and returns the path
-object given by considering the first \fIelements\fR elements as valid path
+value given by considering the first \fIelements\fR elements as valid path
 segments (each path segment may be a complete path, a partial path or
 just a single possible directory or file name). If any path segment is
 actually an absolute path, then all prior path segments are discarded.
 If \fIelements\fR is less than 0, we use the entire list.
 .PP
-It is possible that the returned object is actually an element
+It is possible that the returned value is actually an element
 of the given list, so the caller should be careful to increment the
 reference count of the result before freeing the list.
 .PP
-The returned object, typically with a reference count of zero (but it
+The returned value, typically with a reference count of zero (but it
 could be shared
 under some conditions), contains the joined path. The caller must
-add a reference count to the object before using it. In particular, the
-returned object could be an element of the given list, so freeing the
-list might free the object prematurely if no reference count has been taken.
-If the number of elements is zero, then the returned object will be
+add a reference count to the value before using it. In particular, the
+returned value could be an element of the given list, so freeing the
+list might free the value prematurely if no reference count has been taken.
+If the number of elements is zero, then the returned value will be
 an empty-string Tcl_Obj.
 .PP
 \fBTcl_FSSplitPath\fR takes the given Tcl_Obj, which should be a valid path,
-and returns a Tcl list object containing each segment of that path as
+and returns a Tcl list value containing each segment of that path as
 an element.
-It returns a list object with a reference count of zero. If the
+It returns a list value with a reference count of zero. If the
 passed in \fIlenPtr\fR is non-NULL, the variable it points to will be
 updated to contain the number of elements in the returned list.
 .PP
@@ -657,7 +657,7 @@ either path is NULL, 0 is always returned.
 from the given Tcl_Obj a unique normalized path representation, whose
 string value can be used as a unique identifier for the file.
 .PP
-It returns the normalized path object, owned by Tcl, or NULL if the path
+It returns the normalized path value, owned by Tcl, or NULL if the path
 was invalid or could otherwise not be successfully converted.
 Extraction of absolute, normalized paths is very efficient (because the
 filesystem operates on these representations internally), although the
@@ -665,35 +665,36 @@ result when the filesystem contains numerous symbolic links may not be
 the most user-friendly version of a path. The return value is owned by
 Tcl and has a lifetime equivalent to that of the \fIpathPtr\fR passed in
 (unless that is a relative path, in which case the normalized path
-object may be freed any time the cwd changes) - the caller can of
-course increment the refCount if it wishes to maintain a copy for longer.
+value may be freed any time the cwd changes) - the caller can of
+course increment the reference count if it wishes to maintain a copy for longer.
 .PP
-\fBTcl_FSJoinToPath\fR takes the given object, which should usually be a
+\fBTcl_FSJoinToPath\fR takes the given value, which should usually be a
 valid path or NULL, and joins onto it the array of paths segments
 given.
 .PP
-Returns object, typically with refCount of zero (but it could be shared
+Returns a value, typically with reference count of zero (but it could be shared
 under some conditions), containing the joined path. The caller must
-add a refCount to the object before using it. If any of the objects
-passed into this function (pathPtr or path elements) have a refCount
+add a reference count to the value before using it. If any of the values
+passed into this function (\fIpathPtr\fR or \fIpath\fR elements) have
+a reference count
 of zero, they will be freed when this function returns.
 .PP
 \fBTcl_FSConvertToPathType\fR tries to convert the given Tcl_Obj to a valid
 Tcl path type, taking account of the fact that the cwd may have changed
-even if this object is already supposedly of the correct type.
+even if this value is already supposedly of the correct type.
 The filename may begin with
 .QW ~
 (to indicate current user's home directory) or
 .QW ~<user>
 (to indicate any user's home directory).
 .PP
-If the conversion succeeds (i.e.\ the object is a valid path in one of
+If the conversion succeeds (i.e.\ the value is a valid path in one of
 the current filesystems), then \fBTCL_OK\fR is returned. Otherwise
 \fBTCL_ERROR\fR is returned, and an error message may
 be left in the interpreter.
 .PP
 \fBTcl_FSGetInternalRep\fR extracts the internal representation of a given
-path object, in the given filesystem. If the path object belongs to a
+path value, in the given filesystem. If the path value belongs to a
 different filesystem, we return NULL. If the internal representation is
 currently NULL, we attempt to generate it, by calling the filesystem's
 \fBTcl_FSCreateInternalRepProc\fR.
@@ -705,7 +706,7 @@ not require additional conversions.
 \fBTcl_FSGetTranslatedPath\fR attempts to extract the translated path
 from the given Tcl_Obj.
 .PP
-If the translation succeeds (i.e.\ the object is a valid path), then it is
+If the translation succeeds (i.e.\ the value is a valid path), then it is
 returned. Otherwise NULL will be returned, and an error message may be
 left in the interpreter. A
 .QW translated
@@ -714,8 +715,8 @@ path is one which contains no
 or
 .QW ~user
 sequences (these have been expanded to their current
-representation in the filesystem). The object returned is owned by the
-caller, which must store it or call Tcl_DecrRefCount to ensure memory is
+representation in the filesystem). The value returned is owned by the
+caller, which must store it or call \fBTcl_DecrRefCount\fR to ensure memory is
 freed. This function is of little practical use, and
 \fBTcl_FSGetNormalizedPath\fR or \fBTcl_FSGetNativePath\fR are usually
 better functions to use for most purposes.
@@ -731,11 +732,11 @@ better functions to use for most purposes.
 usual obj->path->nativerep conversions. If some code retrieves a path
 in native form (from, e.g.\ \fBreadlink\fR or a native dialog), and that path
 is to be used at the Tcl level, then calling this function is an
-efficient way of creating the appropriate path object type.
+efficient way of creating the appropriate path value type.
 .PP
-The resulting object is a pure
+The resulting value is a pure
 .QW path
-object, which will only receive
+value, which will only receive
 a UTF-8 string representation if that is required by some Tcl code.
 .PP
 \fBTcl_FSGetNativePath\fR is for use by the Win/Unix native
@@ -773,7 +774,7 @@ given path within that filesystem (which is filesystem dependent). The
 second element may be empty if the filesystem does not provide a
 further categorization of files.
 .PP
-A valid list object is returned, unless the path object is not
+A valid list value is returned, unless the path value is not
 recognized, when NULL will be returned.
 .PP
 \fBTcl_FSGetFileSystemForPath\fR returns a pointer to the
@@ -1001,14 +1002,14 @@ The \fIversion\fR field should be set to \fBTCL_FILESYSTEM_VERSION_1\fR.
 .SS PATHINFILESYSTEMPROC
 .PP
 The \fIpathInFilesystemProc\fR field contains the address of a function
-which is called to determine whether a given path object belongs to this
+which is called to determine whether a given path value belongs to this
 filesystem or not. Tcl will only call the rest of the filesystem
 functions with a path for which this function has returned \fBTCL_OK\fR.
 If the path does not belong, -1 should be returned (the behavior of Tcl
 for any other return value is not defined). If \fBTCL_OK\fR is returned,
 then the optional \fIclientDataPtr\fR output parameter can be used to
 return an internal (filesystem specific) representation of the path,
-which will be cached inside the path object, and may be retrieved
+which will be cached inside the path value, and may be retrieved
 efficiently by the other filesystem functions. Tcl will simultaneously
 cache the fact that this path belongs to this filesystem. Such caches
 are invalidated when filesystem structures are added or removed from
@@ -1022,7 +1023,7 @@ typedef int \fBTcl_FSPathInFilesystemProc\fR(
 .SS DUPINTERNALREPPROC
 .PP
 This function makes a copy of a path's internal representation, and is
-called when Tcl needs to duplicate a path object. If NULL, Tcl will
+called when Tcl needs to duplicate a path value. If NULL, Tcl will
 simply not copy the internal representation, which may then need to be
 regenerated later.
 .PP
@@ -1042,8 +1043,8 @@ typedef void \fBTcl_FSFreeInternalRepProc\fR(
 .SS INTERNALTONORMALIZEDPROC
 .PP
 Function to convert internal representation to a normalized path. Only
-required if the filesystem creates pure path objects with no string/path
-representation. The return value is a Tcl object whose string
+required if the filesystem creates pure path values with no string/path
+representation. The return value is a Tcl value whose string
 representation is the normalized path.
 .PP
 .CS
@@ -1052,9 +1053,9 @@ typedef Tcl_Obj *\fBTcl_FSInternalToNormalizedProc\fR(
 .CE
 .SS CREATEINTERNALREPPROC
 .PP
-Function to take a path object, and calculate an internal
+Function to take a path value, and calculate an internal
 representation for it, and store that native representation in the
-object. May be NULL if paths have no internal representation, or if
+value. May be NULL if paths have no internal representation, or if
 the \fITcl_FSPathInFilesystemProc\fR for this filesystem always
 immediately creates an internal representation for paths it accepts.
 .PP
@@ -1066,7 +1067,7 @@ typedef ClientData \fBTcl_FSCreateInternalRepProc\fR(
 .PP
 Function to normalize a path. Should be implemented for all
 filesystems which can have multiple string representations for the same
-path object. In Tcl, every
+path value. In Tcl, every
 .QW path
 must have a single unique
 .QW normalized
@@ -1078,7 +1079,7 @@ reference to a home directory such as
 .QW ~ ,
 a path containing symbolic
 links, etc). If the very last component in the path is a symbolic
-link, it should not be converted into the object it points to (but
+link, it should not be converted into the value it points to (but
 its case or other aspects should be made unique). All other path
 components should be converted from symbolic links. This one
 exception is required to agree with Tcl's semantics with \fBfile
@@ -1122,7 +1123,7 @@ which is returned. A typical return value might be
 or
 .QW ftp .
 The Tcl_Obj result is owned by the filesystem and so Tcl will
-increment the refCount of that object if it wishes to retain a reference
+increment the reference count of that value if it wishes to retain a reference
 to it.
 .PP
 .CS
@@ -1137,7 +1138,7 @@ different separator than the standard string
 .QW / .
 Amongst other
 uses, it is returned by the \fBfile separator\fR command. The
-return value should be an object with refCount of zero.
+return value should be a value with reference count of zero.
 .PP
 .CS
 typedef Tcl_Obj *\fBTcl_FSFilesystemSeparatorProc\fR(
@@ -1256,7 +1257,7 @@ The return value is a standard Tcl result indicating whether an error
 occurred in the matching process. Error messages are placed in
 \fIinterp\fR, unless \fIinterp\fR in NULL in which case no error
 message need be generated; on a \fBTCL_OK\fR result, results should be 
-added to the \fIresultPtr\fR object given (which can be assumed to be a 
+added to the \fIresultPtr\fR value given (which can be assumed to be a 
 valid unshared Tcl list). The matches added
 to \fIresultPtr\fR should include any path prefix given in \fIpathPtr\fR
 (this usually means they will be absolute path specifications).
@@ -1326,7 +1327,7 @@ contents of a link. The result is a Tcl_Obj specifying the contents of
 the link given by \fIlinkNamePtr\fR, or NULL if the link could
 not be read. The result is owned by the caller (and should therefore
 have its ref count incremented before being returned). Any callers
-should call Tcl_DecrRefCount on this result when it is no longer needed.
+should call \fBTcl_DecrRefCount\fR on this result when it is no longer needed.
 If \fItoPtr\fR is not NULL, the function should attempt to create a link.
 The result in this case should be \fItoPtr\fR if the link was successful
 and NULL otherwise. In this case the result is not owned by the caller
@@ -1344,16 +1345,16 @@ typedef Tcl_Obj *\fBTcl_FSListVolumesProc\fR(void);
 .CE
 .PP
 The result should be a list of volumes added by this filesystem, or
-NULL (or an empty list) if no volumes are provided. The result object
+NULL (or an empty list) if no volumes are provided. The result value
 is considered to be owned by the filesystem (not by Tcl's core), but
-should be given a refCount for Tcl. Tcl will use the contents of the
-list and then decrement that refCount. This allows filesystems to
+should be given a reference count for Tcl. Tcl will use the contents of the
+list and then decrement that reference count. This allows filesystems to
 choose whether they actually want to retain a
 .QW "master list"
 of volumes
 or not (if not, they generate the list on the fly and pass it to Tcl
-with a refCount of 1 and then forget about the list, if yes, then
-they simply increment the refCount of their master list and pass it
+with a reference count of 1 and then forget about the list, if yes, then
+they simply increment the reference count of their master list and pass it
 to Tcl which will copy the contents and then decrement the count back
 to where it was).
 .PP
@@ -1379,7 +1380,7 @@ will take that list and first increment its reference count before using it.
 On completion of that use, Tcl will decrement its reference count. Hence if
 the list should be disposed of by Tcl when done, it should have a
 reference count of zero, and if the list should not be disposed of, the
-filesystem should ensure it returns an object with a reference count
+filesystem should ensure it returns a value with a reference count
 of at least one.
 .SS FILEATTRSGETPROC
 .PP
diff --git a/doc/FindExec.3 b/doc/FindExec.3
index e4b4ed0..b01315c 100644
--- a/doc/FindExec.3
+++ b/doc/FindExec.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_FindExecutable 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_FindExecutable, Tcl_GetNameOfExecutable \- identify or return the name of the binary file containing the application
diff --git a/doc/GetCwd.3 b/doc/GetCwd.3
index 964e237..58abcde 100755
--- a/doc/GetCwd.3
+++ b/doc/GetCwd.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_GetCwd 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetCwd, Tcl_Chdir \- manipulate the current working directory
diff --git a/doc/GetHostName.3 b/doc/GetHostName.3
index 28f3a4f..8aed0dc 100644
--- a/doc/GetHostName.3
+++ b/doc/GetHostName.3
@@ -2,8 +2,8 @@
 '\" Copyright (c) 1998-2000 by Scriptics Corporation.
 '\" All rights reserved.
 '\" 
-.so man.macros
 .TH Tcl_GetHostName 3 8.3 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetHostName \- get the name of the local host
diff --git a/doc/GetIndex.3 b/doc/GetIndex.3
index 50607ae..fc6f40b 100644
--- a/doc/GetIndex.3
+++ b/doc/GetIndex.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_GetIndexFromObj 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetIndexFromObj, Tcl_GetIndexFromObjStruct \- lookup string in table of keywords
@@ -26,7 +26,7 @@ int
 Interpreter to use for error reporting; if NULL, then no message is
 provided on errors.
 .AP Tcl_Obj *objPtr in/out
-The string value of this object is used to search through \fItablePtr\fR.
+The string value of this value is used to search through \fItablePtr\fR.
 The internal representation is modified to hold the index of the matching
 table entry.
 .AP "const char *const" *tablePtr in
@@ -58,8 +58,8 @@ The index of the string in \fItablePtr\fR that matches the value of
 .SH DESCRIPTION
 .PP
 These procedures provide an efficient way for looking up keywords,
-switch names, option names, and similar things where the value of
-an object must be one of a predefined set of values.
+switch names, option names, and similar things where the literal value of
+a Tcl value must be chosen from a predefined set.
 \fBTcl_GetIndexFromObj\fR compares \fIobjPtr\fR against each of
 the strings in \fItablePtr\fR to find a match.  A match occurs if
 \fIobjPtr\fR's string value is identical to one of the strings in
@@ -101,4 +101,4 @@ each of several array elements.
 .SH "SEE ALSO"
 prefix(n), Tcl_WrongNumArgs(3)
 .SH KEYWORDS
-index, object, table lookup
+index, option, value, table lookup
diff --git a/doc/GetInt.3 b/doc/GetInt.3
index f77d337..4e9d636 100644
--- a/doc/GetInt.3
+++ b/doc/GetInt.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_GetInt 3 "" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetInt, Tcl_GetDouble, Tcl_GetBoolean \- convert from string to integer, double, or boolean
diff --git a/doc/GetOpnFl.3 b/doc/GetOpnFl.3
index 38aa976..86d1b94 100644
--- a/doc/GetOpnFl.3
+++ b/doc/GetOpnFl.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_GetOpenFile 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetOpenFile \- Return a FILE* for a channel registered in the given interpreter (Unix only)
diff --git a/doc/GetStdChan.3 b/doc/GetStdChan.3
index e76ad66..8af1e7e 100644
--- a/doc/GetStdChan.3
+++ b/doc/GetStdChan.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_GetStdChannel 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/GetTime.3 b/doc/GetTime.3
index f4da364..6b885ee 100644
--- a/doc/GetTime.3
+++ b/doc/GetTime.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_GetTime 3 8.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetTime, Tcl_SetTimeProc, Tcl_QueryTimeProc \- get date and time
diff --git a/doc/GetVersion.3 b/doc/GetVersion.3
index 47034d0..89f63d5 100755
--- a/doc/GetVersion.3
+++ b/doc/GetVersion.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_GetVersion 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_GetVersion \- get the version of the library at runtime
diff --git a/doc/Hash.3 b/doc/Hash.3
index d8e3d2c..fcc0d83a 100644
--- a/doc/Hash.3
+++ b/doc/Hash.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Hash 3 "" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_InitHashTable, Tcl_InitCustomHashTable, Tcl_InitObjHashTable, Tcl_DeleteHashTable, Tcl_CreateHashEntry, Tcl_DeleteHashEntry, Tcl_FindHashEntry, Tcl_GetHashValue, Tcl_SetHashValue, Tcl_GetHashKey, Tcl_FirstHashEntry, Tcl_NextHashEntry, Tcl_HashStats \- procedures to manage hash tables
@@ -310,14 +310,14 @@ typedef Tcl_HashEntry *\fBTcl_AllocHashEntryProc\fR(
         void *\fIkeyPtr\fR);
 .CE
 .PP
-If this is NULL then Tcl_Alloc is used to allocate enough space for a
+If this is NULL then \fBTcl_Alloc\fR is used to allocate enough space for a
 Tcl_HashEntry, the key pointer is assigned to key.oneWordValue and the
 clientData is set to NULL. String keys and array keys use this function to
 allocate enough space for the entry and the key in one block, rather than
 doing it in two blocks. This saves space for a pointer to the key from the
 entry and another memory allocation. Tcl_Obj* keys use this function to
 allocate enough space for an entry and increment the reference count on the
-object.
+value.
 .PP
 The \fIfreeEntryProc\fR member contains the address of a function called to
 free space for an entry.
@@ -327,8 +327,8 @@ typedef void \fBTcl_FreeHashEntryProc\fR(
         Tcl_HashEntry *\fIhPtr\fR);
 .CE
 .PP
-If this is NULL then Tcl_Free is used to free the space for the entry.
+If this is NULL then \fBTcl_Free\fR is used to free the space for the entry.
 Tcl_Obj* keys use this function to decrement the reference count on the
-object.
+value.
 .SH KEYWORDS
 hash table, key, lookup, search, value
diff --git a/doc/Init.3 b/doc/Init.3
index f421479..33c27a3 100644
--- a/doc/Init.3
+++ b/doc/Init.3
@@ -2,8 +2,8 @@
 '\" Copyright (c) 1998-2000 by Scriptics Corporation.
 '\" All rights reserved.
 '\" 
-.so man.macros
 .TH Tcl_Init 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Init \- find and source initialization script
diff --git a/doc/InitStubs.3 b/doc/InitStubs.3
index 5f56278..73c3437 100644
--- a/doc/InitStubs.3
+++ b/doc/InitStubs.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_InitStubs 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_InitStubs \- initialize the Tcl stubs mechanism
@@ -63,9 +63,9 @@ Define the \fBUSE_TCL_STUBS\fR symbol.  Typically, you would include the
 \fB\-DUSE_TCL_STUBS\fR flag when compiling the extension.
 .IP 3) 5
 Link the extension with the Tcl stubs library instead of the standard
-Tcl library.  For example, to use the Tcl 8.1 ABI on Unix platforms,
-the library name is \fIlibtclstub8.1.a\fR; on Windows platforms, the
-library name is \fItclstub81.lib\fR.
+Tcl library.  For example, to use the Tcl 8.6 ABI on Unix platforms,
+the library name is \fIlibtclstub8.6.a\fR; on Windows platforms, the
+library name is \fItclstub86.lib\fR.
 .PP
 If the extension also requires the Tk API, it must also call
 \fBTk_InitStubs\fR to initialize the Tk stubs interface and link
diff --git a/doc/IntObj.3 b/doc/IntObj.3
index cde96f8..d42b44a 100644
--- a/doc/IntObj.3
+++ b/doc/IntObj.3
@@ -4,11 +4,11 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_IntObj 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
-Tcl_NewIntObj, Tcl_NewLongObj, Tcl_NewWideIntObj, Tcl_SetIntObj, Tcl_SetLongObj, Tcl_SetWideIntObj, Tcl_GetIntFromObj, Tcl_GetLongFromObj, Tcl_GetWideIntFromObj, Tcl_NewBignumObj, Tcl_SetBignumObj, Tcl_GetBignumFromObj, Tcl_TakeBignumFromObj \- manipulate Tcl objects as integer values
+Tcl_NewIntObj, Tcl_NewLongObj, Tcl_NewWideIntObj, Tcl_SetIntObj, Tcl_SetLongObj, Tcl_SetWideIntObj, Tcl_GetIntFromObj, Tcl_GetLongFromObj, Tcl_GetWideIntFromObj, Tcl_NewBignumObj, Tcl_SetBignumObj, Tcl_GetBignumFromObj, Tcl_TakeBignumFromObj \- manipulate Tcl values as integers
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -56,17 +56,17 @@ int
 .SH ARGUMENTS
 .AS Tcl_WideInt doubleValue in/out
 .AP int intValue in
-Integer value used to initialize or set a Tcl object.
+Integer value used to initialize or set a Tcl value.
 .AP long longValue in
-Long integer value used to initialize or set a Tcl object.
+Long integer value used to initialize or set a Tcl value.
 .AP Tcl_WideInt wideValue in
-Wide integer value used to initialize or set a Tcl object.
+Wide integer value used to initialize or set a Tcl value.
 .AP Tcl_Obj *objPtr in/out
 For \fBTcl_SetIntObj\fR, \fBTcl_SetLongObj\fR, \fBTcl_SetWideIntObj\fR,
-and \fBTcl_SetBignumObj\fR, this points to the object in which to store an
+and \fBTcl_SetBignumObj\fR, this points to the value in which to store an
 integral value.  For \fBTcl_GetIntFromObj\fR, \fBTcl_GetLongFromObj\fR,
 \fBTcl_GetWideIntFromObj\fR, \fBTcl_GetBignumFromObj\fR, and
-\fBTcl_TakeBignumFromObj\fR, this refers to the object from which
+\fBTcl_TakeBignumFromObj\fR, this refers to the value from which
 to retrieve an integral value.
 .AP Tcl_Interp *interp in/out
 When non-NULL, an error message is left here when integral value
@@ -86,7 +86,7 @@ used to initialize a multi-precision integer value.
 .BE
 .SH DESCRIPTION
 .PP
-These procedures are used to create, modify, and read Tcl objects
+These procedures are used to create, modify, and read Tcl values
 that hold integral values.  
 .PP
 The different routines exist to accommodate different integral types in C
@@ -103,22 +103,22 @@ by the LibTomMath multiple-precision integer library.
 .PP
 The \fBTcl_NewIntObj\fR, \fBTcl_NewLongObj\fR, \fBTcl_NewWideIntObj\fR,
 and \fBTcl_NewBignumObj\fR routines each create and return a new
-Tcl object initialized to the integral value of the argument.  The
-returned Tcl object is unshared.
+Tcl value initialized to the integral value of the argument.  The
+returned Tcl value is unshared.
 .PP
 The \fBTcl_SetIntObj\fR, \fBTcl_SetLongObj\fR, \fBTcl_SetWideIntObj\fR,
 and \fBTcl_SetBignumObj\fR routines each set the value of an existing
-Tcl object pointed to by \fIobjPtr\fR to the integral value provided
+Tcl value pointed to by \fIobjPtr\fR to the integral value provided
 by the other argument.  The \fIobjPtr\fR argument must point to an
-unshared Tcl object.  Any attempt to set the value of a shared Tcl object
+unshared Tcl value.  Any attempt to set the value of a shared Tcl value
 violates Tcl's copy-on-write policy.  Any existing string representation
-or internal representation in the unshared Tcl object will be freed
+or internal representation in the unshared Tcl value will be freed
 as a consequence of setting the new value.
 .PP
 The \fBTcl_GetIntFromObj\fR, \fBTcl_GetLongFromObj\fR,
 \fBTcl_GetWideIntFromObj\fR, \fBTcl_GetBignumFromObj\fR, and
 \fBTcl_TakeBignumFromObj\fR routines attempt to retrieve an integral
-value of the appropriate type from the Tcl object \fIobjPtr\fR.  If the
+value of the appropriate type from the Tcl value \fIobjPtr\fR.  If the
 attempt succeeds, then \fBTCL_OK\fR is returned, and the value is
 written to the storage provided by the caller.  The attempt might
 fail if \fIobjPtr\fR does not hold an integral value, or if the
@@ -127,7 +127,7 @@ then \fBTCL_ERROR\fR is returned, and if \fIinterp\fR is non-NULL,
 an error message is left in \fIinterp\fR.  The \fBTcl_ObjType\fR
 of \fIobjPtr\fR may be changed to make subsequent calls to the
 same routine more efficient. Unlike the other functions,
-\fBTcl_TakeBignumFromObj\fR may set the content of the Tcl object
+\fBTcl_TakeBignumFromObj\fR may set the content of the Tcl value
 \fIobjPtr\fR to an empty string in the process of retrieving the
 multiple-precision integer value.
 .PP
@@ -148,4 +148,5 @@ integer value in the \fBmp_int\fR value \fIbigValue\fR.
 .SH "SEE ALSO"
 Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_GetObjResult
 .SH KEYWORDS
-integer, integer object, integer type, internal representation, object, object type, string representation
+integer, integer value, integer type, internal representation, value,
+value type, string representation
diff --git a/doc/Interp.3 b/doc/Interp.3
index d908057..b639add 100644
--- a/doc/Interp.3
+++ b/doc/Interp.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Interp 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Interp \- client-visible fields of interpreter structures
diff --git a/doc/Limit.3 b/doc/Limit.3
index 2941ee8..20a2e02 100644
--- a/doc/Limit.3
+++ b/doc/Limit.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_LimitCheck 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_LimitAddHandler, Tcl_LimitCheck, Tcl_LimitExceeded, Tcl_LimitGetCommands, Tcl_LimitGetGranularity, Tcl_LimitGetTime, Tcl_LimitReady, Tcl_LimitRemoveHandler, Tcl_LimitSetCommands, Tcl_LimitSetGranularity, Tcl_LimitSetTime, Tcl_LimitTypeEnabled, Tcl_LimitTypeExceeded, Tcl_LimitTypeReset, Tcl_LimitTypeSet \- manage and check resource limits on interpreters
diff --git a/doc/LinkVar.3 b/doc/LinkVar.3
index dc71a45..c64720b 100644
--- a/doc/LinkVar.3
+++ b/doc/LinkVar.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_LinkVar 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_LinkVar, Tcl_UnlinkVar, Tcl_UpdateLinkedVar \- link Tcl variable to C variable
diff --git a/doc/ListObj.3 b/doc/ListObj.3
index b93e52b..3af0e7e 100644
--- a/doc/ListObj.3
+++ b/doc/ListObj.3
@@ -4,11 +4,11 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_ListObj 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
-Tcl_ListObjAppendList, Tcl_ListObjAppendElement, Tcl_NewListObj, Tcl_SetListObj, Tcl_ListObjGetElements, Tcl_ListObjLength, Tcl_ListObjIndex, Tcl_ListObjReplace \- manipulate Tcl objects as lists
+Tcl_ListObjAppendList, Tcl_ListObjAppendElement, Tcl_NewListObj, Tcl_SetListObj, Tcl_ListObjGetElements, Tcl_ListObjLength, Tcl_ListObjIndex, Tcl_ListObjReplace \- manipulate Tcl values as lists
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -38,44 +38,44 @@ int
 .SH ARGUMENTS
 .AS "Tcl_Obj *const" *elemListPtr in/out
 .AP Tcl_Interp *interp in
-If an error occurs while converting an object to be a list object,
-an error message is left in the interpreter's result object
+If an error occurs while converting a value to be a list value,
+an error message is left in the interpreter's result value
 unless \fIinterp\fR is NULL.
 .AP Tcl_Obj *listPtr in/out
-Points to the list object to be manipulated.
-If \fIlistPtr\fR does not already point to a list object,
+Points to the list value to be manipulated.
+If \fIlistPtr\fR does not already point to a list value,
 an attempt will be made to convert it to one.
 .AP Tcl_Obj *elemListPtr in/out
-For \fBTcl_ListObjAppendList\fR, this points to a list object
+For \fBTcl_ListObjAppendList\fR, this points to a list value
 containing elements to be appended onto \fIlistPtr\fR.
 Each element of *\fIelemListPtr\fR will
 become a new element of \fIlistPtr\fR.
 If *\fIelemListPtr\fR is not NULL and
-does not already point to a list object,
+does not already point to a list value,
 an attempt will be made to convert it to one.
 .AP Tcl_Obj *objPtr in
 For \fBTcl_ListObjAppendElement\fR,
-points to the Tcl object that will be appended to \fIlistPtr\fR.
+points to the Tcl value that will be appended to \fIlistPtr\fR.
 For \fBTcl_SetListObj\fR,
-this points to the Tcl object that will be converted to a list object
+this points to the Tcl value that will be converted to a list value
 containing the \fIobjc\fR elements of the array referenced by \fIobjv\fR.
 .AP int *objcPtr in
 Points to location where \fBTcl_ListObjGetElements\fR
-stores the number of element objects in \fIlistPtr\fR.
+stores the number of element values in \fIlistPtr\fR.
 .AP Tcl_Obj ***objvPtr out
 A location where \fBTcl_ListObjGetElements\fR stores a pointer to an array
-of pointers to the element objects of \fIlistPtr\fR.  
+of pointers to the element values of \fIlistPtr\fR.  
 .AP int objc in
-The number of Tcl objects that \fBTcl_NewListObj\fR
-will insert into a new list object,
+The number of Tcl values that \fBTcl_NewListObj\fR
+will insert into a new list value,
 and \fBTcl_ListObjReplace\fR will insert into \fIlistPtr\fR.
 For \fBTcl_SetListObj\fR,
-the number of Tcl objects to insert into \fIobjPtr\fR.
+the number of Tcl values to insert into \fIobjPtr\fR.
 .AP "Tcl_Obj *const" objv[] in
-An array of pointers to objects.
-\fBTcl_NewListObj\fR will insert these objects into a new list object
+An array of pointers to values.
+\fBTcl_NewListObj\fR will insert these values into a new list value
 and \fBTcl_ListObjReplace\fR will insert them into an existing \fIlistPtr\fR.
-Each object will become a separate list element.  
+Each value will become a separate list element.  
 .AP int *intPtr out
 Points to location where \fBTcl_ListObjLength\fR
 stores the length of the list.
@@ -85,7 +85,7 @@ is to return.
 The first element has index 0.
 .AP Tcl_Obj **objPtrPtr out
 Points to place where \fBTcl_ListObjIndex\fR is to store
-a pointer to the resulting list element object.
+a pointer to the resulting list element value.
 .AP int first in
 Index of the starting list element that \fBTcl_ListObjReplace\fR
 is to replace.
@@ -97,85 +97,85 @@ is to replace.
 
 .SH DESCRIPTION
 .PP
-Tcl list objects have an internal representation that supports
+Tcl list values have an internal representation that supports
 the efficient indexing and appending.
 The procedures described in this man page are used to
-create, modify, index, and append to Tcl list objects from C code.
+create, modify, index, and append to Tcl list values from C code.
 .PP
 \fBTcl_ListObjAppendList\fR and \fBTcl_ListObjAppendElement\fR
-both add one or more objects
-to the end of the list object referenced by \fIlistPtr\fR.
-\fBTcl_ListObjAppendList\fR appends each element of the list object
+both add one or more values
+to the end of the list value referenced by \fIlistPtr\fR.
+\fBTcl_ListObjAppendList\fR appends each element of the list value
 referenced by \fIelemListPtr\fR while
-\fBTcl_ListObjAppendElement\fR appends the single object
+\fBTcl_ListObjAppendElement\fR appends the single value
 referenced by \fIobjPtr\fR.
-Both procedures will convert the object referenced by \fIlistPtr\fR
-to a list object if necessary.
+Both procedures will convert the value referenced by \fIlistPtr\fR
+to a list value if necessary.
 If an error occurs during conversion,
 both procedures return \fBTCL_ERROR\fR and leave an error message
-in the interpreter's result object if \fIinterp\fR is not NULL.
-Similarly, if \fIelemListPtr\fR does not already refer to a list object,
+in the interpreter's result value if \fIinterp\fR is not NULL.
+Similarly, if \fIelemListPtr\fR does not already refer to a list value,
 \fBTcl_ListObjAppendList\fR will attempt to convert it to one
 and if an error occurs during conversion,
 will return \fBTCL_ERROR\fR
-and leave an error message in the interpreter's result object
+and leave an error message in the interpreter's result value
 if interp is not NULL.
 Both procedures invalidate any old string representation of \fIlistPtr\fR
-and, if it was converted to a list object,
+and, if it was converted to a list value,
 free any old internal representation.
 Similarly, \fBTcl_ListObjAppendList\fR frees any old internal representation
-of \fIelemListPtr\fR if it converts it to a list object.
+of \fIelemListPtr\fR if it converts it to a list value.
 After appending each element in \fIelemListPtr\fR,
 \fBTcl_ListObjAppendList\fR increments the element's reference count
 since \fIlistPtr\fR now also refers to it.
 For the same reason, \fBTcl_ListObjAppendElement\fR
 increments \fIobjPtr\fR's reference count.
 If no error occurs,
-the two procedures return \fBTCL_OK\fR after appending the objects.
+the two procedures return \fBTCL_OK\fR after appending the values.
 .PP
 \fBTcl_NewListObj\fR and \fBTcl_SetListObj\fR
-create a new object or modify an existing object to hold 
+create a new value or modify an existing value to hold 
 the \fIobjc\fR elements of the array referenced by \fIobjv\fR
-where each element is a pointer to a Tcl object.
+where each element is a pointer to a Tcl value.
 If \fIobjc\fR is less than or equal to zero,
-they return an empty object.
-The new object's string representation is left invalid.
+they return an empty value.
+The new value's string representation is left invalid.
 The two procedures increment the reference counts
-of the elements in \fIobjc\fR since the list object now refers to them.
-The new list object returned by \fBTcl_NewListObj\fR
+of the elements in \fIobjc\fR since the list value now refers to them.
+The new list value returned by \fBTcl_NewListObj\fR
 has reference count zero.
 .PP
 \fBTcl_ListObjGetElements\fR returns a count and a pointer to an array of
-the elements in a list object.  It returns the count by storing it in the
+the elements in a list value.  It returns the count by storing it in the
 address \fIobjcPtr\fR.  Similarly, it returns the array pointer by storing
 it in the address \fIobjvPtr\fR.
 The memory pointed to is managed by Tcl and should not be freed or written
 to by the caller. If the list is empty, 0 is stored at \fIobjcPtr\fR
 and NULL at \fIobjvPtr\fR.
-If \fIlistPtr\fR is not already a list object, \fBTcl_ListObjGetElements\fR
+If \fIlistPtr\fR is not already a list value, \fBTcl_ListObjGetElements\fR
 will attempt to convert it to one; if the conversion fails, it returns
 \fBTCL_ERROR\fR and leaves an error message in the interpreter's result
-object if \fIinterp\fR is not NULL.
+value if \fIinterp\fR is not NULL.
 Otherwise it returns \fBTCL_OK\fR after storing the count and array pointer.
 .PP
-\fBTcl_ListObjLength\fR returns the number of elements in the list object
+\fBTcl_ListObjLength\fR returns the number of elements in the list value
 referenced by \fIlistPtr\fR.
 It returns this count by storing an integer in the address \fIintPtr\fR.
-If the object is not already a list object,
+If the value is not already a list value,
 \fBTcl_ListObjLength\fR will attempt to convert it to one;
 if the conversion fails, it returns \fBTCL_ERROR\fR
-and leaves an error message in the interpreter's result object
+and leaves an error message in the interpreter's result value
 if \fIinterp\fR is not NULL.
 Otherwise it returns \fBTCL_OK\fR after storing the list's length.
 .PP
-The procedure \fBTcl_ListObjIndex\fR returns a pointer to the object
+The procedure \fBTcl_ListObjIndex\fR returns a pointer to the value
 at element \fIindex\fR in the list referenced by \fIlistPtr\fR.
-It returns this object by storing a pointer to it
+It returns this value by storing a pointer to it
 in the address \fIobjPtrPtr\fR.
-If \fIlistPtr\fR does not already refer to a list object,
+If \fIlistPtr\fR does not already refer to a list value,
 \fBTcl_ListObjIndex\fR will attempt to convert it to one;
 if the conversion fails, it returns \fBTCL_ERROR\fR
-and leaves an error message in the interpreter's result object
+and leaves an error message in the interpreter's result value
 if \fIinterp\fR is not NULL.
 If the index is out of range,
 that is, \fIindex\fR is negative or
@@ -183,19 +183,19 @@ greater than or equal to the number of elements in the list,
 \fBTcl_ListObjIndex\fR stores a NULL in \fIobjPtrPtr\fR
 and returns \fBTCL_OK\fR.
 Otherwise it returns \fBTCL_OK\fR after storing the element's
-object pointer.
+value pointer.
 The reference count for the list element is not incremented;
 the caller must do that if it needs to retain a pointer to the element.
 .PP
 \fBTcl_ListObjReplace\fR replaces zero or more elements
 of the list referenced by \fIlistPtr\fR
-with the \fIobjc\fR objects in the array referenced by \fIobjv\fR.
-If \fIlistPtr\fR does not point to a list object,
+with the \fIobjc\fR values in the array referenced by \fIobjv\fR.
+If \fIlistPtr\fR does not point to a list value,
 \fBTcl_ListObjReplace\fR will attempt to convert it to one;
 if the conversion fails, it returns \fBTCL_ERROR\fR
-and leaves an error message in the interpreter's result object
+and leaves an error message in the interpreter's result value
 if \fIinterp\fR is not NULL.
-Otherwise, it returns \fBTCL_OK\fR after replacing the objects.
+Otherwise, it returns \fBTCL_OK\fR after replacing the values.
 If \fIobjv\fR is NULL, no new elements are added.
 If the argument \fIfirst\fR is zero or negative,
 it refers to the first element.
@@ -210,13 +210,13 @@ designated by \fIfirst\fR.
 old string representation.
 The reference counts of any elements inserted from \fIobjv\fR
 are incremented since the resulting list now refers to them.
-Similarly, the reference counts for any replaced objects are decremented.
+Similarly, the reference counts for any replaced values are decremented.
 .PP
 Because \fBTcl_ListObjReplace\fR combines
 both element insertion and deletion,
 it can be used to implement a number of list operations.
-For example, the following code inserts the \fIobjc\fR objects
-referenced by the array of object pointers \fIobjv\fR
+For example, the following code inserts the \fIobjc\fR values
+referenced by the array of value pointers \fIobjv\fR
 just before the element \fIindex\fR of the list referenced by \fIlistPtr\fR:
 .PP
 .CS
@@ -224,7 +224,7 @@ result = \fBTcl_ListObjReplace\fR(interp, listPtr, index, 0,
         objc, objv);
 .CE
 .PP
-Similarly, the following code appends the \fIobjc\fR objects
+Similarly, the following code appends the \fIobjc\fR values
 referenced by the array \fIobjv\fR
 to the end of the list \fIlistPtr\fR:
 .PP
@@ -247,4 +247,5 @@ result = \fBTcl_ListObjReplace\fR(interp, listPtr, first, count,
 .SH "SEE ALSO"
 Tcl_NewObj(3), Tcl_DecrRefCount(3), Tcl_IncrRefCount(3), Tcl_GetObjResult(3)
 .SH KEYWORDS
-append, index, insert, internal representation, length, list, list object, list type, object, object type, replace, string representation
+append, index, insert, internal representation, length, list, list value,
+list type, value, value type, replace, string representation
diff --git a/doc/Load.3 b/doc/Load.3
index c088f32..0ffaf57 100644
--- a/doc/Load.3
+++ b/doc/Load.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Load 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_LoadFile, Tcl_FindSymbol \- platform-independent dynamic library loading
@@ -31,7 +31,8 @@ Array of names of symbols to be resolved during the load of the library, or
 NULL if no symbols are to be resolved. If an array is given, the last entry in
 the array must be NULL.
 .AP int flags in
-Reserved for future expansion. Must be 0.
+The value should normally be 0, but \fITCL_LOAD_GLOBAL\fR or \fITCL_LOAD_LAZY\fR
+or a combination of those two is allowed as well.
 .AP void *procPtrs out
 Points to an array that will hold the addresses of the functions described in
 the \fIsymbols\fR argument. Should be NULL if no symbols are to be resolved.
diff --git a/doc/Method.3 b/doc/Method.3
index 43b3609..550b64a 100644
--- a/doc/Method.3
+++ b/doc/Method.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH Tcl_Method 3 0.1 TclOO "TclOO Library Functions"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -172,8 +172,9 @@ typedef struct {
 .PP
 The \fIversion\fR field allows for future expansion of the structure, and
 should always be declared equal to TCL_OO_METHOD_VERSION_CURRENT. The
-\fIname\fR field provides a human-readable name for the type, and is reserved
-for debugging.
+\fIname\fR field provides a human-readable name for the type, and is the value
+that is exposed via the \fBinfo class methodtype\fR and
+\fBinfo object methodtype\fR Tcl commands.
 .PP
 The \fIcallProc\fR field gives a function that is called when the method is
 invoked; it must never be NULL.
diff --git a/doc/NRE.3 b/doc/NRE.3
index 5c27491..a8ac477 100644
--- a/doc/NRE.3
+++ b/doc/NRE.3
@@ -4,11 +4,11 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH NRE 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
-Tcl_NRCreateCommand, Tcl_NRCallObjProc, Tcl_NREvalObj, Tcl_NREvalObjv, Tcl_NRCmdSwap, Tcl_NRAddCallback \- Non-Recursive (stackless) evaluation of Tcl scripts.
+Tcl_NRCreateCommand, Tcl_NRCallObjProc, Tcl_NREvalObj, Tcl_NREvalObjv, Tcl_NRCmdSwap, Tcl_NRExprObj, Tcl_NRAddCallback \- Non-Recursive (stackless) evaluation of Tcl scripts.
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -57,7 +57,7 @@ is \fBNULL\fR, then no procedure is called before the command is deleted.
 .AP int objc in
 Count of parameters provided to the implementation of a command.
 .AP Tcl_Obj **objv in
-Pointer to an array of Tcl objects. Each object holds the value of a
+Pointer to an array of Tcl values. Each value holds the value of a
 single word in the command to execute.
 .AP Tcl_Obj *objPtr in
 Pointer to a Tcl_Obj whose value is a script or expression to execute.
@@ -141,10 +141,10 @@ trampoline.
 .PP
 \fBTcl_NRCmdSwap\fR allows for trampoline evaluation of a command whose
 resolution is already known.  The \fIcmd\fR parameter gives a
-\fBTcl_Command\fR object (returned from \fBTcl_CreateObjCommand\fR or
+\fBTcl_Command\fR token (returned from \fBTcl_CreateObjCommand\fR or
 \fBTcl_GetCommandFromObj\fR) identifying the command to be invoked in
 the trampoline; this command must match the word in \fIobjv[0]\fR.
-The remaining arguments are as for \fBTcl_NREvalObj\fR.
+The remaining arguments are as for \fBTcl_NREvalObjv\fR.
 .PP
 \fBTcl_NREvalObj\fR, \fBTcl_NREvalObjv\fR and \fBTcl_NRCmdSwap\fR
 all accept a \fIflags\fR parameter, which is an OR-ed-together set of
@@ -207,7 +207,7 @@ is something like:
 .PP
 .CS
 int
-\fITheCmdObjProc\fR(
+\fITheCmdOldObjProc\fR(
     ClientData clientData,
     Tcl_Interp *interp,
     int objc,
@@ -225,7 +225,7 @@ int
     return result;
 }
 \fBTcl_CreateObjCommand\fR(interp, "theCommand",
-        \fITheCmdObjProc\fR, clientData, TheCmdDeleteProc);
+        \fITheCmdOldObjProc\fR, clientData, TheCmdDeleteProc);
 .CE
 .PP
 To enable a command like this one for trampoline-based evaluation,
@@ -255,8 +255,8 @@ int
     int objc,
     Tcl_Obj *const objv[])
 {
-    return \fBTcl_NRCallObjProc\fR(interp, name,
-            \fITheCmdNRObjProc\fR, clientData, objc, objv);
+    return \fBTcl_NRCallObjProc\fR(interp, \fITheCmdNRObjProc\fR, 
+            clientData, objc, objv);
 }
 .CE
 .PP
@@ -295,7 +295,7 @@ int
     int result)
 {
     /* \fIdata[0] .. data[3]\fR are the four words of data
-     * passed to \fBTcl_NREvalObj\fR */
+     * passed to \fBTcl_NRAddCallback\fR */
 
     \fI... postprocessing ...\fR
 
@@ -317,12 +317,12 @@ and the second is for use when there is already a trampoline in place.
 .PP
 .CS
 \fBTcl_NRCreateCommand\fR(interp, "theCommand",
-        \fITheCmdObjProc\fR, \fITheCmdNRObjProc\fR, clientData,
+        \fITheCmdNewObjProc\fR, \fITheCmdNRObjProc\fR, clientData,
         TheCmdDeleteProc);
 .CE
 .SH "SEE ALSO"
 Tcl_CreateCommand(3), Tcl_CreateObjCommand(3), Tcl_EvalObjEx(3), Tcl_GetCommandFromObj(3), Tcl_ExprObj(3)
 .SH KEYWORDS
-stackless, nonrecursive, execute, command, global, object, result, script
+stackless, nonrecursive, execute, command, global, value, result, script
 .SH COPYRIGHT
 Copyright (c) 2008 by Kevin B. Kenny
diff --git a/doc/Namespace.3 b/doc/Namespace.3
index 50cc559..be89597 100644
--- a/doc/Namespace.3
+++ b/doc/Namespace.3
@@ -7,8 +7,8 @@
 '\" Note that some of these functions do not seem to belong, but they
 '\" were all introduced with the same TIP (#139)
 '\" 
-.so man.macros
 .TH Tcl_Namespace 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_AppendExportList, Tcl_CreateNamespace, Tcl_DeleteNamespace, Tcl_Export, Tcl_FindCommand, Tcl_FindNamespace, Tcl_ForgetImport, Tcl_GetCurrentNamespace, Tcl_GetGlobalNamespace, Tcl_GetNamespaceUnknownHandler, Tcl_Import, Tcl_SetNamespaceUnknownHandler \- manipulate namespaces
@@ -67,7 +67,7 @@ if no such callback is to be performed.
 The namespace to be manipulated, or NULL (for other than
 \fBTcl_DeleteNamespace\fR) to manipulate the current namespace.
 .AP Tcl_Obj *objPtr out
-A reference to an unshared object to which the function output will be
+A reference to an unshared value to which the function output will be
 written.
 .AP "const char" *pattern in
 The glob-style pattern (see \fBTcl_StringMatch\fR) that describes the
diff --git a/doc/Notifier.3 b/doc/Notifier.3
index f65d580..f2976b1 100644
--- a/doc/Notifier.3
+++ b/doc/Notifier.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Notifier 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CreateEventSource, Tcl_DeleteEventSource, Tcl_SetMaxBlockTime, Tcl_QueueEvent, Tcl_ThreadQueueEvent, Tcl_ThreadAlert, Tcl_GetCurrentThread, Tcl_DeleteEvents, Tcl_InitNotifier, Tcl_FinalizeNotifier, Tcl_WaitForEvent, Tcl_AlertNotifier, Tcl_SetTimer, Tcl_ServiceAll, Tcl_ServiceEvent, Tcl_GetServiceMode, Tcl_SetServiceMode, Tcl_ServiceModeHook, Tcl_SetNotifier \- the event queue and notifier interfaces
diff --git a/doc/OOInitStubs.3 b/doc/OOInitStubs.3
new file mode 100644
index 0000000..bc42453
--- /dev/null
+++ b/doc/OOInitStubs.3
@@ -0,0 +1,54 @@
+'\"
+'\" Copyright (c) 2012 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Tcl_OOInitStubs 3 1.0 TclOO "TclOO Library Functions"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+Tcl_OOInitStubs \- initialize library access to TclOO functionality
+.SH SYNOPSIS
+.nf
+\fB#include <tclOO.h>\fR
+.sp
+const char *
+\fBTcl_OOInitStubs\fR(\fIinterp\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_Interp *interp in
+.AP Tcl_Interp *interp in
+The Tcl interpreter that the TclOO API is integrated with and whose C
+interface is going to be used.
+.BE
+.SH DESCRIPTION
+.PP
+When an extension library is going to use the C interface exposed by TclOO, it
+should use \fBTcl_OOInitStubs\fR to initialize its access to that interface
+from within its \fI*\fB_Init\fR (or \fI*\fB_SafeInit\fR) function, passing in
+the \fIinterp\fR that was passed into that routine as context. If the result
+of calling \fBTcl_OOInitStubs\fR is NULL, the initialization failed and an
+error message will have been left in the interpreter's result. Otherwise, the
+initialization succeeded and the TclOO API may thereafter be used; the
+version of the TclOO API is returned.
+.PP
+When using this function, either the C #define symbol \fBUSE_TCLOO_STUBS\fR
+should be defined and your library code linked against the Tcl stub library,
+or that #define symbol should \fInot\fR be defined and your library code
+linked against the Tcl main library directly.
+.SH "BACKWARD COMPATIBILITY NOTE"
+.PP
+If you are linking against the Tcl 8.5 forward compatibility package for
+TclOO, \fIonly\fR the stub-enabled configuration is supported and you should
+also link against the TclOO independent stub library; that library is an
+integrated part of the main Tcl stub library in Tcl 8.6.
+.SH KEYWORDS
+stubs
+.SH "SEE ALSO"
+Tcl_InitStubs(3)
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/Object.3 b/doc/Object.3
index 1c60449..55451ab 100644
--- a/doc/Object.3
+++ b/doc/Object.3
@@ -4,11 +4,11 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Obj 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
-Tcl_NewObj, Tcl_DuplicateObj, Tcl_IncrRefCount, Tcl_DecrRefCount, Tcl_IsShared, Tcl_InvalidateStringRep \- manipulate Tcl objects
+Tcl_NewObj, Tcl_DuplicateObj, Tcl_IncrRefCount, Tcl_DecrRefCount, Tcl_IsShared, Tcl_InvalidateStringRep \- manipulate Tcl values
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -30,35 +30,36 @@ int
 .SH ARGUMENTS
 .AS Tcl_Obj *objPtr
 .AP Tcl_Obj *objPtr in
-Points to an object;
+Points to a value;
 must have been the result of a previous call to \fBTcl_NewObj\fR.
 .BE
 .SH INTRODUCTION
 .PP
-This man page presents an overview of Tcl objects and how they are used.
-It also describes generic procedures for managing Tcl objects.
-These procedures are used to create and copy objects,
-and increment and decrement the count of references (pointers) to objects.
+This man page presents an overview of Tcl values (called \fBTcl_Obj\fRs for
+historical reasons) and how they are used.
+It also describes generic procedures for managing Tcl values.
+These procedures are used to create and copy values,
+and increment and decrement the count of references (pointers) to values.
 The procedures are used in conjunction with ones
-that operate on specific types of objects such as
+that operate on specific types of values such as
 \fBTcl_GetIntFromObj\fR and \fBTcl_ListObjAppendElement\fR.
 The individual procedures are described along with the data structures
 they manipulate.
 .PP
-Tcl's \fIdual-ported\fR objects provide a general-purpose mechanism
+Tcl's \fIdual-ported\fR values provide a general-purpose mechanism
 for storing and exchanging Tcl values.
 They largely replace the use of strings in Tcl.
 For example, they are used to store variable values,
 command arguments, command results, and scripts.
-Tcl objects behave like strings but also hold an internal representation
+Tcl values behave like strings but also hold an internal representation
 that can be manipulated more efficiently.
-For example, a Tcl list is now represented as an object
+For example, a Tcl list is now represented as a value
 that holds the list's string representation
-as well as an array of pointers to the objects for each list element.
-Dual-ported objects avoid most runtime type conversions.
+as well as an array of pointers to the values for each list element.
+Dual-ported values avoid most runtime type conversions.
 They also improve the speed of many operations
 since an appropriate representation is immediately available.
-The compiler itself uses Tcl objects to
+The compiler itself uses Tcl values to
 cache the instruction bytecodes resulting from compiling scripts.
 .PP
 The two representations are a cache of each other and are computed lazily.
@@ -73,39 +74,39 @@ between integers and strings.
 Only when it needs a string representing the variable's value,
 say to print it,
 will the program regenerate the string representation from the integer.
-Although objects contain an internal representation,
+Although values contain an internal representation,
 their semantics are defined in terms of strings:
 an up-to-date string can always be obtained,
-and any change to the object will be reflected in that string
-when the object's string representation is fetched.
+and any change to the value will be reflected in that string
+when the value's string representation is fetched.
 Because of this representation invalidation and regeneration,
 it is dangerous for extension writers to access
 \fBTcl_Obj\fR fields directly.
 It is better to access Tcl_Obj information using
 procedures like \fBTcl_GetStringFromObj\fR and \fBTcl_GetString\fR.
 .PP
-Objects are allocated on the heap
+Values are allocated on the heap
 and are referenced using a pointer to their \fBTcl_Obj\fR structure.
-Objects are shared as much as possible.
+Values are shared as much as possible.
 This significantly reduces storage requirements
-because some objects such as long lists are very large.
+because some values such as long lists are very large.
 Also, most Tcl values are only read and never modified.
 This is especially true for procedure arguments,
 which can be shared between the caller and the called procedure.
 Assignment and argument binding is done by
 simply assigning a pointer to the value. 
 Reference counting is used to determine when it is safe to
-reclaim an object's storage.
+reclaim a value's storage.
 .PP
-Tcl objects are typed.
-An object's internal representation is controlled by its type.
+Tcl values are typed.
+A value's internal representation is controlled by its type.
 Several types are predefined in the Tcl core
 including integer, double, list, and bytecode.
 Extension writers can extend the set of types
 by defining their own \fBTcl_ObjType\fR structs.
 .SH "THE TCL_OBJ STRUCTURE"
 .PP
-Each Tcl object is represented by a \fBTcl_Obj\fR structure
+Each Tcl value is represented by a \fBTcl_Obj\fR structure
 which is defined as follows.
 .PP
 .CS
@@ -132,7 +133,7 @@ typedef struct Tcl_Obj {
 .CE
 .PP
 The \fIbytes\fR and the \fIlength\fR members together hold
-an object's UTF-8 string representation,
+a value's UTF-8 string representation,
 which is a \fIcounted string\fR not containing null bytes (UTF-8 null
 characters should be encoded as a two byte sequence: 192, 128.)
 \fIbytes\fR points to the first byte of the string representation.
@@ -142,31 +143,31 @@ at offset \fIlength\fR;
 this allows string representations
 to be treated as conventional null-terminated C strings.
 C programs use \fBTcl_GetStringFromObj\fR and \fBTcl_GetString\fR to get
-an object's string representation.
+a value's string representation.
 If \fIbytes\fR is NULL,
 the string representation is invalid.
 .PP
-An object's type manages its internal representation.
+A value's type manages its internal representation.
 The member \fItypePtr\fR points to the Tcl_ObjType structure
 that describes the type.
 If \fItypePtr\fR is NULL,
 the internal representation is invalid.
 .PP
 The \fIinternalRep\fR union member holds
-an object's internal representation.
+a value's internal representation.
 This is either a (long) integer, a double-precision floating-point number,
 a pointer to a value containing additional information
-needed by the object's type to represent the object, a Tcl_WideInt
+needed by the value's type to represent the value, a Tcl_WideInt
 integer, two arbitrary pointers, or a pair made up of an unsigned long
 integer and a pointer.
 .PP
 The \fIrefCount\fR member is used to tell when it is safe to free
-an object's storage.
-It holds the count of active references to the object.
+a value's storage.
+It holds the count of active references to the value.
 Maintaining the correct reference count is a key responsibility
 of extension writers.
 Reference counting is discussed below
-in the section \fBSTORAGE MANAGEMENT OF OBJECTS\fR.
+in the section \fBSTORAGE MANAGEMENT OF VALUES\fR.
 .PP
 Although extension writers can directly access
 the members of a Tcl_Obj structure,
@@ -176,21 +177,21 @@ read or update \fIrefCount\fR directly;
 they should use macros such as
 \fBTcl_IncrRefCount\fR and \fBTcl_IsShared\fR instead.
 .PP
-A key property of Tcl objects is that they hold two representations.
-An object typically starts out containing only a string representation:
+A key property of Tcl values is that they hold two representations.
+A value typically starts out containing only a string representation:
 it is untyped and has a NULL \fItypePtr\fR.
-An object containing an empty string or a copy of a specified string
+A value containing an empty string or a copy of a specified string
 is created using \fBTcl_NewObj\fR or \fBTcl_NewStringObj\fR respectively.
-An object's string value is gotten with
+A value's string value is gotten with
 \fBTcl_GetStringFromObj\fR or \fBTcl_GetString\fR
 and changed with \fBTcl_SetStringObj\fR.
-If the object is later passed to a procedure like \fBTcl_GetIntFromObj\fR
+If the value is later passed to a procedure like \fBTcl_GetIntFromObj\fR
 that requires a specific internal representation,
-the procedure will create one and set the object's \fItypePtr\fR.
+the procedure will create one and set the value's \fItypePtr\fR.
 The internal representation is computed from the string representation.
-An object's two representations are duals of each other:
+A value's two representations are duals of each other:
 changes made to one are reflected in the other.
-For example, \fBTcl_ListObjReplace\fR will modify an object's
+For example, \fBTcl_ListObjReplace\fR will modify a value's
 internal representation and the next call to \fBTcl_GetStringFromObj\fR
 or \fBTcl_GetString\fR will reflect that change.
 .PP
@@ -203,43 +204,43 @@ so that it is only regenerated if it is needed later.
 Most C programmers never have to be concerned with how this is done
 and simply use procedures such as \fBTcl_GetBooleanFromObj\fR or
 \fBTcl_ListObjIndex\fR.
-Programmers that implement their own object types
+Programmers that implement their own value types
 must check for invalid representations
 and mark representations invalid when necessary.
 The procedure \fBTcl_InvalidateStringRep\fR is used
-to mark an object's string representation invalid and to
+to mark a value's string representation invalid and to
 free any storage associated with the old string representation.
 .PP
-Objects usually remain one type over their life,
-but occasionally an object must be converted from one type to another.
-For example, a C program might build up a string in an object
+Values usually remain one type over their life,
+but occasionally a value must be converted from one type to another.
+For example, a C program might build up a string in a value
 with repeated calls to \fBTcl_AppendToObj\fR,
 and then call \fBTcl_ListObjIndex\fR to extract a list element from
-the object.
-The same object holding the same string value
+the value.
+The same value holding the same string value
 can have several different internal representations
 at different times.
-Extension writers can also force an object to be converted from one type
+Extension writers can also force a value to be converted from one type
 to another using the \fBTcl_ConvertToType\fR procedure.
-Only programmers that create new object types need to be concerned
+Only programmers that create new value types need to be concerned
 about how this is done.
-A procedure defined as part of the object type's implementation
-creates a new internal representation for an object
+A procedure defined as part of the value type's implementation
+creates a new internal representation for a value
 and changes its \fItypePtr\fR.
 See the man page for \fBTcl_RegisterObjType\fR
-to see how to create a new object type.
-.SH "EXAMPLE OF THE LIFETIME OF AN OBJECT"
+to see how to create a new value type.
+.SH "EXAMPLE OF THE LIFETIME OF A VALUE"
 .PP
-As an example of the lifetime of an object,
+As an example of the lifetime of a value,
 consider the following sequence of commands:
 .PP
 .CS
 \fBset x 123\fR
 .CE
 .PP
-This assigns to \fIx\fR an untyped object whose
+This assigns to \fIx\fR an untyped value whose
 \fIbytes\fR member points to \fB123\fR and \fIlength\fR member contains 3.
-The object's \fItypePtr\fR member is NULL.
+The value's \fItypePtr\fR member is NULL.
 .PP
 .CS
 \fBputs "x is $x"\fR
@@ -252,16 +253,16 @@ and is fetched for the command.
 \fBincr x\fR
 .CE
 .PP
-The \fBincr\fR command first gets an integer from \fIx\fR's object
+The \fBincr\fR command first gets an integer from \fIx\fR's value
 by calling \fBTcl_GetIntFromObj\fR.
-This procedure checks whether the object is already an integer object.
-Since it is not, it converts the object
-by setting the object's \fIinternalRep.longValue\fR member
+This procedure checks whether the value is already an integer value.
+Since it is not, it converts the value
+by setting the value's \fIinternalRep.longValue\fR member
 to the integer \fB123\fR
-and setting the object's \fItypePtr\fR
+and setting the value's \fItypePtr\fR
 to point to the integer Tcl_ObjType structure.
 Both representations are now valid.
-\fBincr\fR increments the object's integer internal representation
+\fBincr\fR increments the value's integer internal representation
 then invalidates its string representation
 (by calling \fBTcl_InvalidateStringRep\fR)
 since the string representation
@@ -271,31 +272,31 @@ no longer corresponds to the internal representation.
 \fBputs "x is now $x"\fR
 .CE
 .PP
-The string representation of \fIx\fR's object is needed
+The string representation of \fIx\fR's value is needed
 and is recomputed.
 The string representation is now \fB124\fR
 and both representations are again valid.
-.SH "STORAGE MANAGEMENT OF OBJECTS"
+.SH "STORAGE MANAGEMENT OF VALUES"
 .PP
-Tcl objects are allocated on the heap and are shared as much as possible
+Tcl values are allocated on the heap and are shared as much as possible
 to reduce storage requirements.
-Reference counting is used to determine when an object is
+Reference counting is used to determine when a value is
 no longer needed and can safely be freed.
-An object just created by \fBTcl_NewObj\fR or \fBTcl_NewStringObj\fR
+A value just created by \fBTcl_NewObj\fR or \fBTcl_NewStringObj\fR
 has \fIrefCount\fR 0.
 The macro \fBTcl_IncrRefCount\fR increments the reference count
-when a new reference to the object is created.
+when a new reference to the value is created.
 The macro \fBTcl_DecrRefCount\fR decrements the count
 when a reference is no longer needed and,
-if the object's reference count drops to zero, frees its storage.
-An object shared by different code or data structures has
+if the value's reference count drops to zero, frees its storage.
+A value shared by different code or data structures has
 \fIrefCount\fR greater than 1.
-Incrementing an object's reference count ensures that
+Incrementing a value's reference count ensures that
 it will not be freed too early or have its value change accidentally.
 .PP
-As an example, the bytecode interpreter shares argument objects
-between calling and called Tcl procedures to avoid having to copy objects.
-It assigns the call's argument objects to the procedure's
+As an example, the bytecode interpreter shares argument values
+between calling and called Tcl procedures to avoid having to copy values.
+It assigns the call's argument values to the procedure's
 formal parameter variables.
 In doing so, it calls \fBTcl_IncrRefCount\fR to increment
 the reference count of each argument since there is now a new
@@ -303,31 +304,31 @@ reference to it from the formal parameter.
 When the called procedure returns,
 the interpreter calls \fBTcl_DecrRefCount\fR to decrement
 each argument's reference count.
-When an object's reference count drops less than or equal to zero,
+When a value's reference count drops less than or equal to zero,
 \fBTcl_DecrRefCount\fR reclaims its storage.
 Most command procedures do not have to be concerned about
-reference counting since they use an object's value immediately
-and do not retain a pointer to the object after they return.
-However, if they do retain a pointer to an object in a data structure,
+reference counting since they use a value's value immediately
+and do not retain a pointer to the value after they return.
+However, if they do retain a pointer to a value in a data structure,
 they must be careful to increment its reference count
 since the retained pointer is a new reference.
 .PP
-Command procedures that directly modify objects
+Command procedures that directly modify values
 such as those for \fBlappend\fR and \fBlinsert\fR must be careful to
-copy a shared object before changing it.
-They must first check whether the object is shared
+copy a shared value before changing it.
+They must first check whether the value is shared
 by calling \fBTcl_IsShared\fR.
-If the object is shared they must copy the object
+If the value is shared they must copy the value
 by using \fBTcl_DuplicateObj\fR;
-this returns a new duplicate of the original object
+this returns a new duplicate of the original value
 that has \fIrefCount\fR 0.
-If the object is not shared,
+If the value is not shared,
 the command procedure
 .QW "owns"
-the object and can safely modify it directly.
+the value and can safely modify it directly.
 For example, the following code appears in the command procedure
 that implements \fBlinsert\fR.
-This procedure modifies the list object passed to it in \fIobjv[1]\fR
+This procedure modifies the list value passed to it in \fIobjv[1]\fR
 by inserting \fIobjc-3\fR new elements before \fIindex\fR.
 .PP
 .CS
@@ -340,11 +341,12 @@ result = Tcl_ListObjReplace(interp, listPtr, index, 0,
 .CE
 .PP
 As another example, \fBincr\fR's command procedure
-must check whether the variable's object is shared before
+must check whether the variable's value is shared before
 incrementing the integer in its internal representation.
-If it is shared, it needs to duplicate the object
+If it is shared, it needs to duplicate the value
 in order to avoid accidentally changing values in other data structures.
 .SH "SEE ALSO"
 Tcl_ConvertToType(3), Tcl_GetIntFromObj(3), Tcl_ListObjAppendElement(3), Tcl_ListObjIndex(3), Tcl_ListObjReplace(3), Tcl_RegisterObjType(3)
 .SH KEYWORDS
-internal representation, object, object creation, object type, reference counting, string representation, type conversion
+internal representation, value, value creation, value type,
+reference counting, string representation, type conversion
diff --git a/doc/ObjectType.3 b/doc/ObjectType.3
index 0c11187..424d560 100644
--- a/doc/ObjectType.3
+++ b/doc/ObjectType.3
@@ -4,11 +4,11 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_ObjType 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
-Tcl_RegisterObjType, Tcl_GetObjType, Tcl_AppendAllObjTypes, Tcl_ConvertToType  \- manipulate Tcl object types
+Tcl_RegisterObjType, Tcl_GetObjType, Tcl_AppendAllObjTypes, Tcl_ConvertToType  \- manipulate Tcl value types
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -26,31 +26,32 @@ int
 .SH ARGUMENTS
 .AS "const char" *typeName
 .AP "const Tcl_ObjType" *typePtr in
-Points to the structure containing information about the Tcl object type.
+Points to the structure containing information about the Tcl value type.
 This storage must live forever,
 typically by being statically allocated.
 .AP "const char" *typeName in
-The name of a Tcl object type that \fBTcl_GetObjType\fR should look up.
+The name of a Tcl value type that \fBTcl_GetObjType\fR should look up.
 .AP Tcl_Interp *interp in
 Interpreter to use for error reporting.
 .AP Tcl_Obj *objPtr in
-For \fBTcl_AppendAllObjTypes\fR, this points to the object onto which
-it appends the name of each object type as a list element.
-For \fBTcl_ConvertToType\fR, this points to an object that
+For \fBTcl_AppendAllObjTypes\fR, this points to the value onto which
+it appends the name of each value type as a list element.
+For \fBTcl_ConvertToType\fR, this points to a value that
 must have been the result of a previous call to \fBTcl_NewObj\fR.
 .BE
 
 .SH DESCRIPTION
 .PP
-The procedures in this man page manage Tcl object types.
-They are used to register new object types, look up types,
+The procedures in this man page manage Tcl value types (sometimes
+referred to as object types or \fBTcl_ObjType\fRs for historical reasons).
+They are used to register new value types, look up types,
 and force conversions from one type to another.
 .PP
-\fBTcl_RegisterObjType\fR registers a new Tcl object type
-in the table of all object types that \fBTcl_GetObjType\fR
-can look up by name.  There are other object types supported by Tcl
+\fBTcl_RegisterObjType\fR registers a new Tcl value type
+in the table of all value types that \fBTcl_GetObjType\fR
+can look up by name.  There are other value types supported by Tcl
 as well, which Tcl chooses not to register.  Extensions can likewise
-choose to register the object types they create or not.
+choose to register the value types they create or not.
 The argument \fItypePtr\fR points to a Tcl_ObjType structure that
 describes the new type by giving its name
 and by supplying pointers to four procedures
@@ -65,13 +66,13 @@ in the section \fBTHE TCL_OBJTYPE STRUCTURE\fR below.
 with name \fItypeName\fR.
 It returns NULL if no type with that name is registered.
 .PP
-\fBTcl_AppendAllObjTypes\fR appends the name of each registered object type
-as a list element onto the Tcl object referenced by \fIobjPtr\fR.
+\fBTcl_AppendAllObjTypes\fR appends the name of each registered value type
+as a list element onto the Tcl value referenced by \fIobjPtr\fR.
 The return value is \fBTCL_OK\fR unless there was an error
-converting \fIobjPtr\fR to a list object;
+converting \fIobjPtr\fR to a list value;
 in that case \fBTCL_ERROR\fR is returned.
 .PP
-\fBTcl_ConvertToType\fR converts an object from one type to another
+\fBTcl_ConvertToType\fR converts a value from one type to another
 if possible.
 It creates a new internal representation for \fIobjPtr\fR
 appropriate for the target type \fItypePtr\fR
@@ -79,7 +80,7 @@ and sets its \fItypePtr\fR member as determined by calling the
 \fItypePtr->setFromAnyProc\fR routine.  
 Any internal representation for \fIobjPtr\fR's old type is freed.
 If an error occurs during conversion, it returns \fBTCL_ERROR\fR
-and leaves an error message in the result object for \fIinterp\fR
+and leaves an error message in the result value for \fIinterp\fR
 unless \fIinterp\fR is NULL.
 Otherwise, it returns \fBTCL_OK\fR.
 Passing a NULL \fIinterp\fR allows this procedure to be used
@@ -94,7 +95,7 @@ use of another related Tcl_ObjType, if it sees fit.
 .VE 8.5
 .SH "THE TCL_OBJTYPE STRUCTURE"
 .PP
-Extension writers can define new object types by defining four
+Extension writers can define new value types by defining four
 procedures and
 initializing a Tcl_ObjType structure to describe the type.
 Extension writers may also pass a pointer to their Tcl_ObjType
@@ -119,12 +120,12 @@ When a type is registered, this is the name used by callers
 of \fBTcl_GetObjType\fR to lookup the type.  For unregistered
 types, the \fIname\fR field is primarily of value for debugging.
 The remaining four members are pointers to procedures
-called by the generic Tcl object code:
+called by the generic Tcl value code:
 .SS "THE SETFROMANYPROC FIELD"
 .PP
 The \fIsetFromAnyProc\fR member contains the address of a function
 called to create a valid internal representation
-from an object's string representation.
+from a value's string representation.
 .PP
 .CS
 typedef int \fBTcl_SetFromAnyProc\fR(
@@ -134,7 +135,7 @@ typedef int \fBTcl_SetFromAnyProc\fR(
 .PP
 If an internal representation cannot be created from the string,
 it returns \fBTCL_ERROR\fR and puts a message
-describing the error in the result object for \fIinterp\fR
+describing the error in the result value for \fIinterp\fR
 unless \fIinterp\fR is NULL.
 If \fIsetFromAnyProc\fR is successful,
 it stores the new internal representation,
@@ -169,7 +170,7 @@ should \fInot\fR be registered.
 .PP
 The \fIupdateStringProc\fR member contains the address of a function
 called to create a valid string representation
-from an object's internal representation.
+from a value's internal representation.
 .PP
 .CS
 typedef void \fBTcl_UpdateStringProc\fR(
@@ -203,7 +204,7 @@ or other similar routines ask for the string representation.
 .SS "THE DUPINTREPPROC FIELD"
 .PP
 The \fIdupIntRepProc\fR member contains the address of a function
-called to copy an internal representation from one object to another.
+called to copy an internal representation from one value to another.
 .PP
 .CS
 typedef void \fBTcl_DupInternalRepProc\fR(
@@ -215,7 +216,7 @@ typedef void \fBTcl_DupInternalRepProc\fR(
 internal representation.
 Before the call,
 \fIsrcPtr\fR's internal representation is valid and \fIdupPtr\fR's is not.
-\fIsrcPtr\fR's object type determines what
+\fIsrcPtr\fR's value type determines what
 copying its internal representation means.
 .PP
 For example, the \fIdupIntRepProc\fR for the Tcl integer type
@@ -226,7 +227,7 @@ reasonably can.
 .SS "THE FREEINTREPPROC FIELD"
 .PP
 The \fIfreeIntRepProc\fR member contains the address of a function
-that is called when an object is freed.
+that is called when a value is freed.
 .PP
 .CS
 typedef void \fBTcl_FreeInternalRepProc\fR(
@@ -234,22 +235,22 @@ typedef void \fBTcl_FreeInternalRepProc\fR(
 .CE
 .PP
 The \fIfreeIntRepProc\fR function can deallocate the storage
-for the object's internal representation
-and do other type-specific processing necessary when an object is freed.
+for the value's internal representation
+and do other type-specific processing necessary when a value is freed.
 .PP
 For example, the list type's \fIfreeIntRepProc\fR respects
 the storage sharing scheme established by the \fIdupIntRepProc\fR
-so that it only frees storage when the last object sharing it
+so that it only frees storage when the last value sharing it
 is being freed.
 .PP
 The \fIfreeIntRepProc\fR member can be set to NULL
 to indicate that the internal representation does not require freeing.
 The \fIfreeIntRepProc\fR implementation must not access the
-\fIbytes\fR member of the object, since Tcl makes its own internal
-uses of that field during object deletion.  The defined tasks for
+\fIbytes\fR member of the value, since Tcl makes its own internal
+uses of that field during value deletion.  The defined tasks for
 the \fIfreeIntRepProc\fR have no need to consult the \fIbytes\fR
 member.
 .SH "SEE ALSO"
 Tcl_NewObj(3), Tcl_DecrRefCount(3), Tcl_IncrRefCount(3)
 .SH KEYWORDS
-internal representation, object, object type, string representation, type conversion
+internal representation, value, value type, string representation, type conversion
diff --git a/doc/OpenFileChnl.3 b/doc/OpenFileChnl.3
index 2368492..cca76c2 100644
--- a/doc/OpenFileChnl.3
+++ b/doc/OpenFileChnl.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH Tcl_OpenFileChannel 3 8.3 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -152,24 +152,24 @@ The pattern to match on, passed to Tcl_StringMatch, or NULL.
 A Tcl channel for input or output.  Must have been the return value
 from a procedure such as \fBTcl_OpenFileChannel\fR.
 .AP Tcl_Obj *readObjPtr in/out
-A pointer to a Tcl Object in which to store the characters read from the
+A pointer to a Tcl value in which to store the characters read from the
 channel.
 .AP int charsToRead in
 The number of characters to read from the channel.  If the channel's encoding 
 is \fBbinary\fR, this is equivalent to the number of bytes to read from the 
 channel.
 .AP int appendFlag in
-If non-zero, data read from the channel will be appended to the object.
-Otherwise, the data will replace the existing contents of the object.
+If non-zero, data read from the channel will be appended to the value.
+Otherwise, the data will replace the existing contents of the value.
 .AP char *readBuf out
 A buffer in which to store the bytes read from the channel.
 .AP int bytesToRead in
 The number of bytes to read from the channel.  The buffer \fIreadBuf\fR must
 be large enough to hold this many bytes.
 .AP Tcl_Obj *lineObjPtr in/out
-A pointer to a Tcl object in which to store the line read from the
+A pointer to a Tcl value in which to store the line read from the
 channel.  The line read will be appended to the current value of the
-object. 
+value. 
 .AP Tcl_DString *lineRead in/out
 A pointer to a Tcl dynamic string in which to store the line read from the
 channel.  Must have been initialized by the caller.  The line read will be
@@ -182,7 +182,7 @@ Length of the input
 Flag indicating whether the input should be added to the end or
 beginning of the channel buffer.
 .AP Tcl_Obj *writeObjPtr in
-A pointer to a Tcl Object whose contents will be output to the channel.
+A pointer to a Tcl value whose contents will be output to the channel.
 .AP "const char" *charBuf in
 A buffer containing the characters to output to the channel.
 .AP "const char" *byteBuf in
@@ -239,7 +239,7 @@ returns NULL and records a POSIX error code that can be
 retrieved with \fBTcl_GetErrno\fR.
 In addition, if \fIinterp\fR is non-NULL, \fBTcl_OpenFileChannel\fR
 leaves an error message in \fIinterp\fR's result after any error.  
-As of Tcl 8.4, the object-based API \fBTcl_FSOpenFileChannel\fR should 
+As of Tcl 8.4, the value-based API \fBTcl_FSOpenFileChannel\fR should 
 be used in preference to \fBTcl_OpenFileChannel\fR wherever possible.
 .PP
 The newly created channel is not registered in the supplied interpreter; to
@@ -305,7 +305,7 @@ open for reading and writing.
 .PP
 \fBTcl_GetChannelNames\fR and \fBTcl_GetChannelNamesEx\fR write the
 names of the registered channels to the interpreter's result as a
-list object.  \fBTcl_GetChannelNamesEx\fR will filter these names
+list value.  \fBTcl_GetChannelNamesEx\fR will filter these names
 according to the \fIpattern\fR.  If \fIpattern\fR is NULL, then it
 will not do any filtering.  The return value is \fBTCL_OK\fR if no
 errors occurred writing to the result, otherwise it is \fBTCL_ERROR\fR,
@@ -435,7 +435,7 @@ platform-specific modes are described in the manual entry for the Tcl
 As a performance optimization, when reading from a channel with the encoding
 \fBbinary\fR, the bytes are not converted to UTF-8 as they are read.
 Instead, they are stored in \fIreadObjPtr\fR's internal representation as a
-byte-array object.  The string representation of this object will only be
+byte-array value.  The string representation of this value will only be
 constructed if it is needed (e.g., because of a call to
 \fBTcl_GetStringFromObj\fR).  In this way, byte-oriented data can be read
 from a channel, manipulated by calling \fBTcl_GetByteArrayFromObj\fR and
@@ -484,7 +484,7 @@ of input unavailability.
 .PP
 \fBTcl_Gets\fR is the same as \fBTcl_GetsObj\fR except the resulting
 characters are appended to the dynamic string given by
-\fIlineRead\fR rather than a Tcl object.
+\fIlineRead\fR rather than a Tcl value.
 .SH "TCL_UNGETS"
 .PP
 \fBTcl_Ungets\fR is used to add data to the input queue of a channel,
@@ -523,14 +523,14 @@ end-of-line sequences according to the \fB\-translation\fR option for the
 channel.  This is done even if the channel has no encoding.
 .PP
 \fBTcl_WriteObj\fR is similar to \fBTcl_WriteChars\fR except it
-accepts a Tcl object whose contents will be output to the channel.  The
+accepts a Tcl value whose contents will be output to the channel.  The
 UTF-8 characters in \fIwriteObjPtr\fR's string representation are converted
 to the channel's encoding and queued for output to \fIchannel\fR.  
 As a performance optimization, when writing to a channel with the encoding
 \fBbinary\fR, UTF-8 characters are not converted as they are written.
 Instead, the bytes in \fIwriteObjPtr\fR's internal representation as a
-byte-array object are written to the channel.  The byte-array representation
-of the object will be constructed if it is needed.  In this way,
+byte-array value are written to the channel.  The byte-array representation
+of the value will be constructed if it is needed.  In this way,
 byte-oriented data can be read from a channel, manipulated by calling
 \fBTcl_GetByteArrayFromObj\fR and related functions, and then written to a
 channel without the expense of ever converting to or from UTF-8.
diff --git a/doc/OpenTcp.3 b/doc/OpenTcp.3
index 78ac70b..9fe2615 100644
--- a/doc/OpenTcp.3
+++ b/doc/OpenTcp.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH Tcl_OpenTcpClient 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/Panic.3 b/doc/Panic.3
index 48aed2b..28d56fa 100644
--- a/doc/Panic.3
+++ b/doc/Panic.3
@@ -2,8 +2,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Panic 3 8.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\"  Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/ParseArgs.3 b/doc/ParseArgs.3
index dd33830..df0ad33 100644
--- a/doc/ParseArgs.3
+++ b/doc/ParseArgs.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_ParseArgsObjv 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_ParseArgsObjv \- parse arguments according to a tabular description
@@ -134,7 +134,7 @@ typedef int (\fBTcl_ArgvFuncProc\fR)(
 .PP
 The result is a boolean value indicating whether to consume the following
 argument. The \fIclientData\fR is the value from the table entry, the
-\fIobjPtr\fR is the object that represents the following argument or NULL if
+\fIobjPtr\fR is the value that represents the following argument or NULL if
 there are no following arguments at all, and the \fIdstPtr\fR argument to the
 \fBTcl_ArgvFuncProc\fR is the location to write the parsed value to.
 .RE
@@ -186,7 +186,7 @@ marks all following arguments to be left unprocessed. The \fIsrcPtr\fR,
 .
 This argument takes a following string value argument. A pointer to the string
 will be stored at \fIdstPtr\fR; the string inside will have a lifetime linked
-to the lifetime of the string representation of the argument object that it
+to the lifetime of the string representation of the argument value that it
 came from, and so should be copied if it needs to be retained. The
 \fIsrcPtr\fR and \fIclientData\fR fields are ignored.
 .SH "SEE ALSO"
diff --git a/doc/ParseCmd.3 b/doc/ParseCmd.3
index f3b3aeb..7090dd3 100644
--- a/doc/ParseCmd.3
+++ b/doc/ParseCmd.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_ParseCommand 3 8.3 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_ParseCommand, Tcl_ParseExpr, Tcl_ParseBraces, Tcl_ParseQuotedString, Tcl_ParseVarName, Tcl_ParseVar, Tcl_FreeParse, Tcl_EvalTokens, Tcl_EvalTokensStandard \- parse Tcl scripts and expressions
@@ -194,9 +194,9 @@ result; it can be retrieved using \fBTcl_GetObjResult\fR.
 .PP
 \fBTcl_EvalTokens\fR differs from \fBTcl_EvalTokensStandard\fR only in
 the return convention used: it returns the result in a new Tcl_Obj.
-The reference count of the object returned as result has been
+The reference count of the value returned as result has been
 incremented, so the caller must
-invoke \fBTcl_DecrRefCount\fR when it is finished with the object.
+invoke \fBTcl_DecrRefCount\fR when it is finished with the value.
 If an error or other exception occurs while evaluating the tokens
 (such as a reference to a non-existent variable) then the return value
 is NULL and an error message is left in \fIinterp\fR's result. The use
diff --git a/doc/PkgRequire.3 b/doc/PkgRequire.3
index d54d7af..5c9fdca 100644
--- a/doc/PkgRequire.3
+++ b/doc/PkgRequire.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_PkgRequire 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_PkgRequire, Tcl_PkgRequireEx, Tcl_PkgRequireProc, Tcl_PkgPresent, Tcl_PkgPresentEx, Tcl_PkgProvide, Tcl_PkgProvideEx \- package version control
diff --git a/doc/Preserve.3 b/doc/Preserve.3
index 905a31d..970bded 100644
--- a/doc/Preserve.3
+++ b/doc/Preserve.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Preserve 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Preserve, Tcl_Release, Tcl_EventuallyFree \- avoid freeing storage while it is being used
diff --git a/doc/PrintDbl.3 b/doc/PrintDbl.3
index 99b0113..730794f 100644
--- a/doc/PrintDbl.3
+++ b/doc/PrintDbl.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_PrintDouble 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_PrintDouble \- Convert floating value to string
diff --git a/doc/RecEvalObj.3 b/doc/RecEvalObj.3
index 2eed471..387cc44 100644
--- a/doc/RecEvalObj.3
+++ b/doc/RecEvalObj.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_RecordAndEvalObj 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_RecordAndEvalObj \- save command on history list before evaluating
@@ -20,7 +20,7 @@ int
 .AP Tcl_Interp *interp in
 Tcl interpreter in which to evaluate command.
 .AP Tcl_Obj *cmdPtr in
-Points to a Tcl object containing a command (or sequence of commands)
+Points to a Tcl value containing a command (or sequence of commands)
 to execute.
 .AP int flags in
 An OR'ed combination of flag bits.  \fBTCL_NO_EVAL\fR means record the
@@ -35,7 +35,7 @@ on the history list and then execute it using \fBTcl_EvalObjEx\fR
 (or \fBTcl_GlobalEvalObj\fR if the \fBTCL_EVAL_GLOBAL\fR bit is set
 in \fIflags\fR).
 It returns a completion code such as \fBTCL_OK\fR just like \fBTcl_EvalObjEx\fR,
-as well as a result object containing additional information
+as well as a result value containing additional information
 (a result value or error message)
 that can be retrieved using \fBTcl_GetObjResult\fR.
 If you do not want the command recorded on the history list then
@@ -50,4 +50,4 @@ the command is recorded without being evaluated.
 Tcl_EvalObjEx, Tcl_GetObjResult
 
 .SH KEYWORDS
-command, event, execute, history, interpreter, object, record
+command, event, execute, history, interpreter, value, record
diff --git a/doc/RecordEval.3 b/doc/RecordEval.3
index a8f3087..e1625ff 100644
--- a/doc/RecordEval.3
+++ b/doc/RecordEval.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_RecordAndEval 3 7.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_RecordAndEval \- save command on history list before evaluating
@@ -44,9 +44,9 @@ If the \fIflags\fR argument contains the \fBTCL_NO_EVAL\fR bit then
 the command is recorded without being evaluated.
 .PP
 Note that \fBTcl_RecordAndEval\fR has been largely replaced by the
-object-based procedure \fBTcl_RecordAndEvalObj\fR.
-That object-based procedure records and optionally executes
-a command held in a Tcl object instead of a string.
+value-based procedure \fBTcl_RecordAndEvalObj\fR.
+That value-based procedure records and optionally executes
+a command held in a Tcl value instead of a string.
 
 .SH "SEE ALSO"
 Tcl_RecordAndEvalObj
diff --git a/doc/RegConfig.3 b/doc/RegConfig.3
index 063cc85..d73e3d7 100644
--- a/doc/RegConfig.3
+++ b/doc/RegConfig.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH Tcl_RegisterConfig 3 8.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/RegExp.3 b/doc/RegExp.3
index e10314a..63f650b 100644
--- a/doc/RegExp.3
+++ b/doc/RegExp.3
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_RegExpMatch 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_RegExpMatch, Tcl_RegExpCompile, Tcl_RegExpExec, Tcl_RegExpRange, Tcl_GetRegExpFromObj, Tcl_RegExpMatchObj, Tcl_RegExpExecObj, Tcl_RegExpGetInfo \- Pattern matching with regular expressions
@@ -45,12 +45,12 @@ void
 Tcl interpreter to use for error reporting.  The interpreter may be
 NULL if no error reporting is desired.
 .AP Tcl_Obj *textObj in/out
-Refers to the object from which to get the text to search.  The
-internal representation of the object may be converted to a form that
+Refers to the value from which to get the text to search.  The
+internal representation of the value may be converted to a form that
 can be efficiently searched.
 .AP Tcl_Obj *patObj in/out
-Refers to the object from which to get a regular expression. The
-compiled regular expression is cached in the object.
+Refers to the value from which to get a regular expression. The
+compiled regular expression is cached in the value.
 .AP char *text in
 Text to search for a match with a regular expression.
 .AP "const char" *pattern in
@@ -110,7 +110,7 @@ If an error occurs in the matching process (e.g. \fIpattern\fR
 is not a valid regular expression) then \fBTcl_RegExpMatch\fR
 returns \-1 and leaves an error message in the interpreter result.
 \fBTcl_RegExpMatchObj\fR is similar to \fBTcl_RegExpMatch\fR except it
-operates on the Tcl objects \fItextObj\fR and \fIpatObj\fR instead of
+operates on the Tcl values \fItextObj\fR and \fIpatObj\fR instead of
 UTF strings. 
 \fBTcl_RegExpMatchObj\fR is generally more efficient than
 \fBTcl_RegExpMatch\fR, so it is the preferred interface.
@@ -164,18 +164,18 @@ If there is no range corresponding to \fIindex\fR then NULL
 is stored in \fI*startPtr\fR and \fI*endPtr\fR.
 .PP
 \fBTcl_GetRegExpFromObj\fR, \fBTcl_RegExpExecObj\fR, and
-\fBTcl_RegExpGetInfo\fR are object interfaces that provide the most
+\fBTcl_RegExpGetInfo\fR are value interfaces that provide the most
 direct control of Henry Spencer's regular expression library.  For
 users that need to modify compilation and execution options directly,
 it is recommended that you use these interfaces instead of calling the
 internal regexp functions.  These interfaces handle the details of UTF
 to Unicode translations as well as providing improved performance
-through caching in the pattern and string objects.
+through caching in the pattern and string values.
 .PP
 \fBTcl_GetRegExpFromObj\fR attempts to return a compiled regular
-expression from the \fIpatObj\fR.  If the object does not already
+expression from the \fIpatObj\fR.  If the value does not already
 contain a compiled regular expression it will attempt to create one
-from the string in the object and assign it to the internal
+from the string in the value and assign it to the internal
 representation of the \fIpatObj\fR.  The return value of this function
 is of type \fBTcl_RegExp\fR.  The return value is a token for this
 compiled form, which can be used in subsequent calls to
diff --git a/doc/SaveResult.3 b/doc/SaveResult.3
index d6ea48d..557391d 100644
--- a/doc/SaveResult.3
+++ b/doc/SaveResult.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SaveResult 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_SaveInterpState, Tcl_RestoreInterpState, Tcl_DiscardInterpState, Tcl_SaveResult, Tcl_RestoreResult, Tcl_DiscardResult \- save and restore an interpreter's state
@@ -96,12 +96,12 @@ or \fBTcl_DiscardInterpState\fR to avoid a memory leak.  Once
 the \fBTcl_InterpState\fR token is passed to one of them, the
 token is no longer valid and should not be used anymore.
 .PP
-\fBTcl_SaveResult\fR moves the string and object results
+\fBTcl_SaveResult\fR moves the string and value results
 of \fIinterp\fR into the location specified by \fIstatePtr\fR.
 \fBTcl_SaveResult\fR clears the result for \fIinterp\fR and
 leaves the result in its normal empty initialized state.
 .PP
-\fBTcl_RestoreResult\fR moves the string and object results from
+\fBTcl_RestoreResult\fR moves the string and value results from
 \fIstatePtr\fR back into \fIinterp\fR.  Any result or error that was
 already in the interpreter will be cleared.  The \fIstatePtr\fR is left
 in an uninitialized state and cannot be used until another call to
diff --git a/doc/SetChanErr.3 b/doc/SetChanErr.3
index 0a62dac..5bb86be 100644
--- a/doc/SetChanErr.3
+++ b/doc/SetChanErr.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH Tcl_SetChannelError 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -55,12 +55,12 @@ arrange for their return as errors. The POSIX error codes set by a driver are
 used now if and only if no messages are present.
 .PP
 \fBTcl_SetChannelError\fR stores error information in the bypass area of the
-specified channel. The number of references to the \fBmsg\fR object goes up by
+specified channel. The number of references to the \fBmsg\fR value goes up by
 one. Previously stored information will be discarded, by releasing the
 reference held by the channel. The channel reference must not be NULL.
 .PP
 \fBTcl_SetChannelErrorInterp\fR stores error information in the bypass area of
-the specified interpreter. The number of references to the \fBmsg\fR object
+the specified interpreter. The number of references to the \fBmsg\fR value
 goes up by one. Previously stored information will be discarded, by releasing
 the reference held by the interpreter. The interpreter reference must not be
 NULL.
@@ -72,7 +72,7 @@ NULL, until an intervening invocation of \fBTcl_SetChannelError\fR with a
 non-NULL message. The \fImsgPtr\fR must not be NULL. The reference count of
 the message is not touched.  The reference previously held by the channel is
 now held by the caller of the function and it is its responsibility to release
-that reference when it is done with the object.
+that reference when it is done with the value.
 .PP
 \fBTcl_GetChannelErrorInterp\fR places either the error message held in the
 bypass area of the specified interpreter into \fImsgPtr\fR, or NULL; and
@@ -82,7 +82,7 @@ return NULL, until an intervening invocation of
 not be NULL. The reference count of the message is not touched.  The reference
 previously held by the interpreter is now held by the caller of the function
 and it is its responsibility to release that reference when it is done with
-the object.
+the value.
 .PP
 Which functions of a channel driver are allowed to use which bypass function
 is listed below, as is which functions of the public channel API may leave a
diff --git a/doc/SetErrno.3 b/doc/SetErrno.3
index 1735952..21648b1 100644
--- a/doc/SetErrno.3
+++ b/doc/SetErrno.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SetErrno 3 8.3 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_SetErrno, Tcl_GetErrno, Tcl_ErrnoId, Tcl_ErrnoMsg \- manipulate errno to store and retrieve error codes
diff --git a/doc/SetRecLmt.3 b/doc/SetRecLmt.3
index e38ba2f..904d4ab 100644
--- a/doc/SetRecLmt.3
+++ b/doc/SetRecLmt.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SetRecursionLimit 3 7.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_SetRecursionLimit \- set maximum allowable nesting depth in interpreter
diff --git a/doc/SetResult.3 b/doc/SetResult.3
index c308193..1f86340 100644
--- a/doc/SetResult.3
+++ b/doc/SetResult.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SetResult 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_SetObjResult, Tcl_GetObjResult, Tcl_SetResult, Tcl_GetStringResult, Tcl_AppendResult, Tcl_AppendResultVA, Tcl_AppendElement, Tcl_ResetResult, Tcl_TransferResult, Tcl_FreeResult \- manipulate Tcl result
@@ -42,7 +42,7 @@ const char *
 .AP Tcl_Interp *interp out
 Interpreter whose result is to be modified or read.
 .AP Tcl_Obj *objPtr in
-Object value to become result for \fIinterp\fR.
+Tcl value to become result for \fIinterp\fR.
 .AP char *result in
 String value to become result for \fIinterp\fR or to be
 appended to the existing result.
@@ -74,32 +74,32 @@ information as well.
 .PP
 The procedures described here are utilities for manipulating the
 result value in a Tcl interpreter.
-The interpreter result may be either a Tcl object or a string.
+The interpreter result may be either a Tcl value or a string.
 For example, \fBTcl_SetObjResult\fR and \fBTcl_SetResult\fR
-set the interpreter result to, respectively, an object and a string.
+set the interpreter result to, respectively, a value and a string.
 Similarly, \fBTcl_GetObjResult\fR and \fBTcl_GetStringResult\fR
-return the interpreter result as an object and as a string.
-The procedures always keep the string and object forms
+return the interpreter result as a value and as a string.
+The procedures always keep the string and value forms
 of the interpreter result consistent.
 For example, if \fBTcl_SetObjResult\fR is called to set
-the result to an object,
+the result to a value,
 then \fBTcl_GetStringResult\fR is called,
-it will return the object's string value.
+it will return the value's string representation.
 .PP
 \fBTcl_SetObjResult\fR
 arranges for \fIobjPtr\fR to be the result for \fIinterp\fR,
 replacing any existing result.
-The result is left pointing to the object
+The result is left pointing to the value
 referenced by \fIobjPtr\fR.
 \fIobjPtr\fR's reference count is incremented
 since there is now a new reference to it from \fIinterp\fR.
-The reference count for any old result object
-is decremented and the old result object is freed if no
+The reference count for any old result value
+is decremented and the old result value is freed if no
 references to it remain.
 .PP
-\fBTcl_GetObjResult\fR returns the result for \fIinterp\fR as an object.
-The object's reference count is not incremented;
-if the caller needs to retain a long-term pointer to the object
+\fBTcl_GetObjResult\fR returns the result for \fIinterp\fR as a value.
+The value's reference count is not incremented;
+if the caller needs to retain a long-term pointer to the value
 they should use \fBTcl_IncrRefCount\fR to increment its reference count
 in order to keep it from being freed too early or accidentally changed.
 .PP
@@ -115,19 +115,19 @@ and \fBTcl_SetResult\fR
 re-initializes \fIinterp\fR's result to point to an empty string.
 .PP
 \fBTcl_GetStringResult\fR returns the result for \fIinterp\fR as a string.
-If the result was set to an object by a \fBTcl_SetObjResult\fR call,
-the object form will be converted to a string and returned.
-If the object's string representation contains null bytes,
+If the result was set to a value by a \fBTcl_SetObjResult\fR call,
+the value form will be converted to a string and returned.
+If the value's string representation contains null bytes,
 this conversion will lose information.
 For this reason, programmers are encouraged to
-write their code to use the new object API procedures
+write their code to use the new value API procedures
 and to call \fBTcl_GetObjResult\fR instead.
 .PP
 \fBTcl_ResetResult\fR clears the result for \fIinterp\fR
 and leaves the result in its normal empty initialized state.
-If the result is an object,
+If the result is a value,
 its reference count is decremented and the result is left
-pointing to an unshared object representing an empty string.
+pointing to an unshared value representing an empty string.
 If the result is a dynamically allocated string, its memory is free*d
 and the result is left as a empty string.
 \fBTcl_ResetResult\fR also clears the error state managed by
@@ -167,7 +167,7 @@ The source interpreter will have its result reset by this operation.
 Use of the following procedures (is deprecated
 since they manipulate the Tcl result as a string.
 Procedures such as \fBTcl_SetObjResult\fR
-that manipulate the result as an object
+that manipulate the result as a value
 can be significantly more efficient.
 .PP
 \fBTcl_AppendElement\fR is similar to \fBTcl_AppendResult\fR in
@@ -252,4 +252,4 @@ the value of \fIresult\fR passed to \fBTcl_SetResult\fR.
 .SH "SEE ALSO"
 Tcl_AddErrorInfo, Tcl_CreateObjCommand, Tcl_SetErrorCode, Tcl_Interp
 .SH KEYWORDS
-append, command, element, list, object, result, return value, interpreter
+append, command, element, list, value, result, return value, interpreter
diff --git a/doc/SetVar.3 b/doc/SetVar.3
index ce47a73..1bef20b 100644
--- a/doc/SetVar.3
+++ b/doc/SetVar.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SetVar 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_SetVar2Ex, Tcl_SetVar, Tcl_SetVar2, Tcl_ObjSetVar2, Tcl_GetVar2Ex, Tcl_GetVar, Tcl_GetVar2, Tcl_ObjGetVar2, Tcl_UnsetVar, Tcl_UnsetVar2 \- manipulate Tcl variables
@@ -57,7 +57,7 @@ to specify a variable in a particular namespace.
 If non-NULL, gives name of element within array; in this
 case \fIname1\fR must refer to an array variable.
 .AP Tcl_Obj *newValuePtr in
-Points to a Tcl object containing the new value for the variable.
+Points to a Tcl value containing the new value for the variable.
 .AP int flags in
 OR-ed combination of bits providing additional information. See below
 for valid values.
@@ -71,12 +71,12 @@ an array.
 New value for variable, specified as a null-terminated string.
 A copy of this value is stored in the variable.
 .AP Tcl_Obj *part1Ptr in
-Points to a Tcl object containing the variable's name.
+Points to a Tcl value containing the variable's name.
 The name may include a series of \fB::\fR namespace qualifiers
 to specify a variable in a particular namespace.
 May refer to a scalar variable or an element of an array variable.
 .AP Tcl_Obj *part2Ptr in
-If non-NULL, points to an object containing the name of an element
+If non-NULL, points to a value containing the name of an element
 within an array and \fIpart1Ptr\fR must refer to an array variable.
 .BE
 
@@ -246,4 +246,4 @@ array is removed.
 Tcl_GetObjResult, Tcl_GetStringResult, Tcl_TraceVar
 
 .SH KEYWORDS
-array, get variable, interpreter, object, scalar, set, unset, variable
+array, get variable, interpreter, scalar, set, unset, value, variable
diff --git a/doc/Signal.3 b/doc/Signal.3
index 5b12654..70b9d91 100644
--- a/doc/Signal.3
+++ b/doc/Signal.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SignalId 3 8.3 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_SignalId, Tcl_SignalMsg \- Convert signal codes
diff --git a/doc/Sleep.3 b/doc/Sleep.3
index 2423ba1..2d36697 100644
--- a/doc/Sleep.3
+++ b/doc/Sleep.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Sleep 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Sleep \- delay execution for a given number of milliseconds
diff --git a/doc/SourceRCFile.3 b/doc/SourceRCFile.3
index eabc47c..0afb66b 100644
--- a/doc/SourceRCFile.3
+++ b/doc/SourceRCFile.3
@@ -2,8 +2,8 @@
 '\" Copyright (c) 1998-2000 by Scriptics Corporation.
 '\" All rights reserved.
 '\"
-.so man.macros
 .TH Tcl_SourceRCFile 3 8.3 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_SourceRCFile \- source the Tcl rc file
diff --git a/doc/SplitList.3 b/doc/SplitList.3
index 219dfc7..3439f2e 100644
--- a/doc/SplitList.3
+++ b/doc/SplitList.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SplitList 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_SplitList, Tcl_Merge, Tcl_ScanElement, Tcl_ConvertElement, Tcl_ScanCountedElement, Tcl_ConvertCountedElement \- manipulate Tcl lists
diff --git a/doc/SplitPath.3 b/doc/SplitPath.3
index 7fdfce6..19cee05 100644
--- a/doc/SplitPath.3
+++ b/doc/SplitPath.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SplitPath 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_SplitPath, Tcl_JoinPath, Tcl_GetPathType \- manipulate platform-dependent file paths
@@ -43,7 +43,7 @@ A pointer to an initialized \fBTcl_DString\fR to which the result of
 
 .SH DESCRIPTION
 .PP
-These procedures have been superseded by the objectified procedures in
+These procedures have been superseded by the Tcl-value-aware procedures in
 the \fBFileSystem\fR man page, which are more efficient.
 .PP
 These procedures may be used to disassemble and reassemble file
diff --git a/doc/StaticPkg.3 b/doc/StaticPkg.3
index fa6c32f..5700ea7 100644
--- a/doc/StaticPkg.3
+++ b/doc/StaticPkg.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_StaticPackage 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_StaticPackage \- make a statically linked package available via the 'load' command
diff --git a/doc/StdChannels.3 b/doc/StdChannels.3
index b5b020e..651ad7d 100644
--- a/doc/StdChannels.3
+++ b/doc/StdChannels.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH "Standard Channels" 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/StrMatch.3 b/doc/StrMatch.3
index 5adaf6e..f9c2be3 100644
--- a/doc/StrMatch.3
+++ b/doc/StrMatch.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_StringMatch 3 8.5 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_StringMatch, Tcl_StringCaseMatch \- test whether a string matches a pattern
diff --git a/doc/StringObj.3 b/doc/StringObj.3
index 412ab78..cf8f6d3 100644
--- a/doc/StringObj.3
+++ b/doc/StringObj.3
@@ -4,11 +4,11 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_StringObj 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
-Tcl_NewStringObj, Tcl_NewUnicodeObj, Tcl_SetStringObj, Tcl_SetUnicodeObj, Tcl_GetStringFromObj, Tcl_GetString, Tcl_GetUnicodeFromObj, Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange, Tcl_AppendToObj, Tcl_AppendUnicodeToObj, Tcl_AppendObjToObj, Tcl_AppendStringsToObj, Tcl_AppendStringsToObjVA, Tcl_AppendLimitedToObj, Tcl_Format, Tcl_AppendFormatToObj, Tcl_ObjPrintf, Tcl_AppendPrintfToObj, Tcl_SetObjLength, Tcl_AttemptSetObjLength, Tcl_ConcatObj \- manipulate Tcl objects as strings
+Tcl_NewStringObj, Tcl_NewUnicodeObj, Tcl_SetStringObj, Tcl_SetUnicodeObj, Tcl_GetStringFromObj, Tcl_GetString, Tcl_GetUnicodeFromObj, Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange, Tcl_AppendToObj, Tcl_AppendUnicodeToObj, Tcl_AppendObjToObj, Tcl_AppendStringsToObj, Tcl_AppendStringsToObjVA, Tcl_AppendLimitedToObj, Tcl_Format, Tcl_AppendFormatToObj, Tcl_ObjPrintf, Tcl_AppendPrintfToObj, Tcl_SetObjLength, Tcl_AttemptSetObjLength, Tcl_ConcatObj \- manipulate Tcl values as strings
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -88,7 +88,7 @@ Tcl_Obj *
 .AS "const Tcl_UniChar" *appendObjPtr in/out
 .AP "const char" *bytes in
 Points to the first byte of an array of UTF-8-encoded bytes
-used to set or append to a string object.
+used to set or append to a string value.
 This byte array may contain embedded null characters
 unless \fInumChars\fR is negative.  (Applications needing null bytes
 should represent them as the two-byte sequence \fI\e700\e600\fR, use
@@ -96,32 +96,32 @@ should represent them as the two-byte sequence \fI\e700\e600\fR, use
 the string is a collection of uninterpreted bytes.)
 .AP int length in
 The number of bytes to copy from \fIbytes\fR when
-initializing, setting, or appending to a string object.
+initializing, setting, or appending to a string value.
 If negative, all bytes up to the first null are used.
 .AP "const Tcl_UniChar" *unicode in
 Points to the first byte of an array of Unicode characters
-used to set or append to a string object.
+used to set or append to a string value.
 This byte array may contain embedded null characters
 unless \fInumChars\fR is negative.
 .AP int numChars in
 The number of Unicode characters to copy from \fIunicode\fR when
-initializing, setting, or appending to a string object.
+initializing, setting, or appending to a string value.
 If negative, all characters up to the first null character are used.
 .AP int index in
 The index of the Unicode character to return.
 .AP int first in
 The index of the first Unicode character in the Unicode range to be
-returned as a new object.
+returned as a new value.
 .AP int last in
 The index of the last Unicode character in the Unicode range to be
-returned as a new object.
+returned as a new value.
 .AP Tcl_Obj *objPtr in/out
-Points to an object to manipulate.
+Points to a value to manipulate.
 .AP Tcl_Obj *appendObjPtr in
-The object to append to \fIobjPtr\fR in \fBTcl_AppendObjToObj\fR.
+The value to append to \fIobjPtr\fR in \fBTcl_AppendObjToObj\fR.
 .AP int *lengthPtr out
 If non-NULL, the location where \fBTcl_GetStringFromObj\fR will store
-the length of an object's string representation.
+the length of a value's string representation.
 .AP "const char" *string in
 Null-terminated string value to append to \fIobjPtr\fR.
 .AP va_list argList in
@@ -139,46 +139,46 @@ Format control string including % conversion specifiers.
 .AP int objc in
 The number of elements to format or concatenate.
 .AP Tcl_Obj *objv[] in
-The array of objects to format or concatenate.
+The array of values to format or concatenate.
 .AP int newLength in
 New length for the string value of \fIobjPtr\fR, not including the
 final null character.
 .BE
 .SH DESCRIPTION
 .PP
-The procedures described in this manual entry allow Tcl objects to
+The procedures described in this manual entry allow Tcl values to
 be manipulated as string values.  They use the internal representation
-of the object to store additional information to make the string
+of the value to store additional information to make the string
 manipulations more efficient.  In particular, they make a series of
 append operations efficient by allocating extra storage space for the
 string so that it does not have to be copied for each append.
 Also, indexing and length computations are optimized because the
 Unicode string representation is calculated and cached as needed.
 When using the \fBTcl_Append*\fR family of functions where the
-interpreter's result is the object being appended to, it is important
+interpreter's result is the value being appended to, it is important
 to call Tcl_ResetResult first to ensure you are not unintentionally
-appending to existing data in the result object.
+appending to existing data in the result value.
 .PP
-\fBTcl_NewStringObj\fR and \fBTcl_SetStringObj\fR create a new object
-or modify an existing object to hold a copy of the string given by
+\fBTcl_NewStringObj\fR and \fBTcl_SetStringObj\fR create a new value
+or modify an existing value to hold a copy of the string given by
 \fIbytes\fR and \fIlength\fR.  \fBTcl_NewUnicodeObj\fR and
-\fBTcl_SetUnicodeObj\fR create a new object or modify an existing
-object to hold a copy of the Unicode string given by \fIunicode\fR and
+\fBTcl_SetUnicodeObj\fR create a new value or modify an existing
+value to hold a copy of the Unicode string given by \fIunicode\fR and
 \fInumChars\fR.  \fBTcl_NewStringObj\fR and \fBTcl_NewUnicodeObj\fR
-return a pointer to a newly created object with reference count zero.
-All four procedures set the object to hold a copy of the specified
+return a pointer to a newly created value with reference count zero.
+All four procedures set the value to hold a copy of the specified
 string.  \fBTcl_SetStringObj\fR and \fBTcl_SetUnicodeObj\fR free any
 old string representation as well as any old internal representation
-of the object.
+of the value.
 .PP
-\fBTcl_GetStringFromObj\fR and \fBTcl_GetString\fR return an object's
+\fBTcl_GetStringFromObj\fR and \fBTcl_GetString\fR return a value's
 string representation.  This is given by the returned byte pointer and
 (for \fBTcl_GetStringFromObj\fR) length, which is stored in
-\fIlengthPtr\fR if it is non-NULL.  If the object's UTF string
+\fIlengthPtr\fR if it is non-NULL.  If the value's UTF string
 representation is invalid (its byte pointer is NULL), the string
-representation is regenerated from the object's internal
+representation is regenerated from the value's internal
 representation.  The storage referenced by the returned byte pointer
-is owned by the object manager.  It is passed back as a writable
+is owned by the value manager.  It is passed back as a writable
 pointer so that extension author creating their own \fBTcl_ObjType\fR
 will be able to modify the string representation within the
 \fBTcl_UpdateStringProc\fR of their \fBTcl_ObjType\fR.  Except for that
@@ -194,45 +194,45 @@ The procedure \fBTcl_GetString\fR is used in the common case
 where the caller does not need the length of the string
 representation.
 .PP
-\fBTcl_GetUnicodeFromObj\fR and \fBTcl_GetUnicode\fR return an object's
+\fBTcl_GetUnicodeFromObj\fR and \fBTcl_GetUnicode\fR return a value's
 value as a Unicode string.  This is given by the returned pointer and
 (for \fBTcl_GetUnicodeFromObj\fR) length, which is stored in
 \fIlengthPtr\fR if it is non-NULL.  The storage referenced by the returned
-byte pointer is owned by the object manager and should not be modified by
+byte pointer is owned by the value manager and should not be modified by
 the caller.  The procedure \fBTcl_GetUnicode\fR is used in the common case
 where the caller does not need the length of the unicode string
 representation.
 .PP
 \fBTcl_GetUniChar\fR returns the \fIindex\fR'th character in the
-object's Unicode representation.
+value's Unicode representation.
 .PP
-\fBTcl_GetRange\fR returns a newly created object comprised of the
+\fBTcl_GetRange\fR returns a newly created value comprised of the
 characters between \fIfirst\fR and \fIlast\fR (inclusive) in the
-object's Unicode representation.  If the object's Unicode
+value's Unicode representation.  If the value's Unicode
 representation is invalid, the Unicode representation is regenerated
-from the object's string representation.
+from the value's string representation.
 .PP
 \fBTcl_GetCharLength\fR returns the number of characters (as opposed
-to bytes) in the string object.
+to bytes) in the string value.
 .PP
 \fBTcl_AppendToObj\fR appends the data given by \fIbytes\fR and
-\fIlength\fR to the string representation of the object specified by
-\fIobjPtr\fR.  If the object has an invalid string representation,
+\fIlength\fR to the string representation of the value specified by
+\fIobjPtr\fR.  If the value has an invalid string representation,
 then an attempt is made to convert \fIbytes\fR is to the Unicode
 format.  If the conversion is successful, then the converted form of
-\fIbytes\fR is appended to the object's Unicode representation.
-Otherwise, the object's Unicode representation is invalidated and
+\fIbytes\fR is appended to the value's Unicode representation.
+Otherwise, the value's Unicode representation is invalidated and
 converted to the UTF format, and \fIbytes\fR is appended to the
-object's new string representation.
+value's new string representation.
 .PP
 \fBTcl_AppendUnicodeToObj\fR appends the Unicode string given by
-\fIunicode\fR and \fInumChars\fR to the object specified by
-\fIobjPtr\fR.  If the object has an invalid Unicode representation,
+\fIunicode\fR and \fInumChars\fR to the value specified by
+\fIobjPtr\fR.  If the value has an invalid Unicode representation,
 then \fIunicode\fR is converted to the UTF format and appended to the
-object's string representation.  Appends are optimized to handle
+value's string representation.  Appends are optimized to handle
 repeated appends relatively efficiently (it over-allocates the string
 or Unicode space to avoid repeated reallocations and copies of
-object's string value).
+value's string value).
 .PP
 \fBTcl_AppendObjToObj\fR is similar to \fBTcl_AppendToObj\fR, but it
 appends the string or Unicode value (whichever exists and is best
@@ -293,6 +293,7 @@ of \fBTcl_Format\fR with functionality equivalent to:
 Tcl_Obj *newPtr = \fBTcl_Format\fR(interp, format, objc, objv);
 if (newPtr == NULL) return TCL_ERROR;
 \fBTcl_AppendObjToObj\fR(objPtr, newPtr);
+\fBTcl_DecrRefCount\fR(newPtr);
 return TCL_OK;
 .CE
 .PP
@@ -337,7 +338,9 @@ Compile-time protection may be provided by some compilers.
 of \fBTcl_ObjPrintf\fR with functionality equivalent to
 .PP
 .CS
-\fBTcl_AppendObjToObj\fR(objPtr, \fBTcl_ObjPrintf\fR(format, ...));
+Tcl_Obj *newPtr = \fBTcl_ObjPrintf\fR(format, ...);
+\fBTcl_AppendObjToObj\fR(objPtr, newPtr);
+\fBTcl_DecrRefCount\fR(newPtr);
 .CE
 .PP
 but with greater convenience and efficiency when the appending
@@ -345,14 +348,14 @@ functionality is needed.
 .PP
 The \fBTcl_SetObjLength\fR procedure changes the length of the
 string value of its \fIobjPtr\fR argument.  If the \fInewLength\fR
-argument is greater than the space allocated for the object's
+argument is greater than the space allocated for the value's
 string, then the string space is reallocated and the old value
 is copied to the new space; the bytes between the old length of
 the string and the new length may have arbitrary values.
 If the \fInewLength\fR argument is less than the current length
-of the object's string, with \fIobjPtr->length\fR is reduced without
+of the value's string, with \fIobjPtr->length\fR is reduced without
 reallocating the string space; the original allocated size for the
-string is recorded in the object, so that the string length can be
+string is recorded in the value, so that the string length can be
 enlarged in a subsequent call to \fBTcl_SetObjLength\fR without
 reallocating storage.  In all cases \fBTcl_SetObjLength\fR leaves
 a null character at \fIobjPtr->bytes[newLength]\fR.
@@ -361,24 +364,24 @@ a null character at \fIobjPtr->bytes[newLength]\fR.
 \fBTcl_SetObjLength\fR except that if sufficient memory to satisfy the
 request cannot be allocated, it does not cause the Tcl interpreter to
 \fBpanic\fR.  Thus, if \fInewLength\fR is greater than the space
-allocated for the object's string, and there is not enough memory
+allocated for the value's string, and there is not enough memory
 available to satisfy the request, \fBTcl_AttemptSetObjLength\fR will take
 no action and return 0 to indicate failure.  If there is enough memory
 to satisfy the request, \fBTcl_AttemptSetObjLength\fR behaves just like
 \fBTcl_SetObjLength\fR and returns 1 to indicate success.
 .PP
-The \fBTcl_ConcatObj\fR function returns a new string object whose
+The \fBTcl_ConcatObj\fR function returns a new string value whose
 value is the space-separated concatenation of the string
-representations of all of the objects in the \fIobjv\fR
+representations of all of the values in the \fIobjv\fR
 array. \fBTcl_ConcatObj\fR eliminates leading and trailing white space
 as it copies the string representations of the \fIobjv\fR array to the
 result. If an element of the \fIobjv\fR array consists of nothing but
-white space, then that object is ignored entirely. This white-space
+white space, then that value is ignored entirely. This white-space
 removal was added to make the output of the \fBconcat\fR command
 cleaner-looking. \fBTcl_ConcatObj\fR returns a pointer to a
-newly-created object whose ref count is zero.
+newly-created value whose ref count is zero.
 .SH "SEE ALSO"
 Tcl_NewObj(3), Tcl_IncrRefCount(3), Tcl_DecrRefCount(3), format(n), sprintf(3)
 .SH KEYWORDS
-append, internal representation, object, object type, string object,
+append, internal representation, value, value type, string value,
 string type, string representation, concat, concatenate, unicode
diff --git a/doc/SubstObj.3 b/doc/SubstObj.3
index 786b595..f582c5a 100644
--- a/doc/SubstObj.3
+++ b/doc/SubstObj.3
@@ -4,11 +4,11 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_SubstObj 3 8.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
-Tcl_SubstObj \- perform substitutions on Tcl objects
+Tcl_SubstObj \- perform substitutions on Tcl values
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -22,7 +22,7 @@ Interpreter in which to execute Tcl scripts and lookup variables.  If
 an error occurs, the interpreter's result is modified to hold an error
 message.
 .AP Tcl_Obj *objPtr in
-A Tcl object containing the string to perform substitutions on.
+A Tcl value containing the string to perform substitutions on.
 .AP int flags in
 ORed combination of flag bits that specify which substitutions to
 perform.  The flags \fBTCL_SUBST_COMMANDS\fR,
@@ -36,7 +36,7 @@ The \fBTcl_SubstObj\fR function is used to perform substitutions on
 strings in the fashion of the \fBsubst\fR command.  It gets the value
 of the string contained in \fIobjPtr\fR and scans it, copying
 characters and performing the chosen substitutions as it goes to an
-output object which is returned as the result of the function.  In the
+output value which is returned as the result of the function.  In the
 event of an error occurring during the execution of a command or
 variable substitution, the function returns NULL and an error message
 is left in \fIinterp\fR's result.
diff --git a/doc/TCL_MEM_DEBUG.3 b/doc/TCL_MEM_DEBUG.3
index 05d4564..e3a6809 100644
--- a/doc/TCL_MEM_DEBUG.3
+++ b/doc/TCL_MEM_DEBUG.3
@@ -3,8 +3,8 @@
 '\" Copyright (c) 2000 by Scriptics Corporation.
 '\" All rights reserved.
 '\" 
-.so man.macros
 .TH TCL_MEM_DEBUG 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 TCL_MEM_DEBUG \- Compile-time flag to enable Tcl memory debugging
@@ -26,7 +26,7 @@ version of \fBTcl_InitMemory\fR to add the \fBmemory\fR command to Tcl.
 \fBTCL_MEM_DEBUG\fR must be either left defined for all modules or undefined
 for all modules that are going to be linked together.  If they are not, link
 errors will occur, with either \fBTcl_DbCkfree\fR and \fBTcl_DbCkalloc\fR or
-\fBTcl_Ckalloc\fR and \fBTcl_Ckfree\fR being undefined.
+\fBTcl_Alloc\fR and \fBTcl_Free\fR being undefined.
 .PP
 Once memory debugging support has been compiled into Tcl, the C
 functions \fBTcl_ValidateAllMemory\fR, and \fBTcl_DumpActiveMemory\fR,
diff --git a/doc/Tcl.n b/doc/Tcl.n
index 68146ab..c7fa9f6 100644
--- a/doc/Tcl.n
+++ b/doc/Tcl.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH Tcl n "8.6" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 .SH NAME
 Tcl \- Tool Command Language
@@ -28,7 +28,7 @@ First, the Tcl interpreter breaks the command into \fIwords\fR
 and performs substitutions as described below.
 These substitutions are performed in the same way for all
 commands.
-The first word is used to locate a command procedure to
+Secondly, the first word is used to locate a command procedure to
 carry out the command, then all of the words of the command are
 passed to the command procedure.
 The command procedure is free to interpret each of its words
@@ -108,8 +108,8 @@ Variable substitution may take any of the following forms:
 \fIName\fR is the name of a scalar variable;  the name is a sequence
 of one or more characters that are a letter, digit, underscore,
 or namespace separators (two or more colons).
-Letters and digits are \fIonly\fR the standard ASCII ones (\fB0\fR\-\fB9\fR,
-\fBA\fR\-\fBZ\fR and \fBa\fR\-\fBz\fR).
+Letters and digits are \fIonly\fR the standard ASCII ones (\fB0\fR\(en\fB9\fR,
+\fBA\fR\(en\fBZ\fR and \fBa\fR\(en\fBz\fR).
 .TP 15
 \fB$\fIname\fB(\fIindex\fB)\fR
 .
@@ -117,8 +117,8 @@ Letters and digits are \fIonly\fR the standard ASCII ones (\fB0\fR\-\fB9\fR,
 the name of an element within that array.
 \fIName\fR must contain only letters, digits, underscores, and
 namespace separators, and may be an empty string.
-Letters and digits are \fIonly\fR the standard ASCII ones (\fB0\fR\-\fB9\fR,
-\fBA\fR\-\fBZ\fR and \fBa\fR\-\fBz\fR).
+Letters and digits are \fIonly\fR the standard ASCII ones (\fB0\fR\(en\fB9\fR,
+\fBA\fR\(en\fBZ\fR and \fBa\fR\(en\fBz\fR).
 Command substitutions, variable substitutions, and backslash
 substitutions are performed on the characters of \fIindex\fR.
 .TP 15
@@ -158,25 +158,25 @@ handled specially, along with the value that replaces each sequence.
 .RS
 .TP 7
 \e\fBa\fR
-Audible alert (bell) (0x7).
+Audible alert (bell) (Unicode U+000007).
 .TP 7
 \e\fBb\fR
-Backspace (0x8).
+Backspace (Unicode U+000008).
 .TP 7
 \e\fBf\fR
-Form feed (0xc).
+Form feed (Unicode U+00000C).
 .TP 7
 \e\fBn\fR
-Newline (0xa).
+Newline (Unicode U+00000A).
 .TP 7
 \e\fBr\fR
-Carriage-return (0xd).
+Carriage-return (Unicode U+00000D).
 .TP 7
 \e\fBt\fR
-Tab (0x9).
+Tab (Unicode U+000009).
 .TP 7
 \e\fBv\fR
-Vertical tab (0xb).
+Vertical tab (Unicode U+00000B).
 .TP 7
 \e\fB<newline>\fIwhiteSpace\fR
 .
@@ -194,8 +194,9 @@ Backslash
 \e\fIooo\fR 
 .
 The digits \fIooo\fR (one, two, or three of them) give a eight-bit octal 
-value for the Unicode character that will be inserted, in the range \fI000\fR
-- \fI377\fR.  The parser will stop just before this range overflows, or when
+value for the Unicode character that will be inserted, in the range
+\fI000\fR\(en\fI377\fR (i.e., the range U+000000\(enU+0000FF).
+The parser will stop just before this range overflows, or when
 the maximum of three digits is reached.  The upper bits of the Unicode
 character will be 0.
 .TP 7
@@ -203,23 +204,27 @@ character will be 0.
 .
 The hexadecimal digits \fIhh\fR (one or two of them) give an eight-bit
 hexadecimal value for the Unicode character that will be inserted.  The upper
-bits of the Unicode character will be 0.
+bits of the Unicode character will be 0 (i.e., the character will be in the
+range U+000000\(enU+0000FF).
 .TP 7
 \e\fBu\fIhhhh\fR 
 .
 The hexadecimal digits \fIhhhh\fR (one, two, three, or four of them) give a
 sixteen-bit hexadecimal value for the Unicode character that will be
-inserted.  The upper bits of the Unicode character will be 0.
+inserted.  The upper bits of the Unicode character will be 0 (i.e., the
+character will be in the range U+000000\(enU+00FFFF).
 .TP 7
 \e\fBU\fIhhhhhhhh\fR 
 .
 The hexadecimal digits \fIhhhhhhhh\fR (one up to eight of them) give a
 twenty-one-bit hexadecimal value for the Unicode character that will be
-inserted, in the range U+0000..U+10FFFF.  The parser will stop just
+inserted, in the range U+000000\(enU+10FFFF.  The parser will stop just
 before this range overflows, or when the maximum of eight digits
 is reached.  The upper bits of the Unicode character will be 0.
+.RS
 .PP
-The range U+010000..U+10FFFD is reserved for the future.
+The range U+010000\(enU+10FFFD is reserved for the future.
+.RE
 .PP
 Backslash substitution is not performed on words enclosed in braces,
 except for backslash-newline as described above.
diff --git a/doc/TclZlib.3 b/doc/TclZlib.3
index 1b5e892..c6a6417 100644
--- a/doc/TclZlib.3
+++ b/doc/TclZlib.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH TclZlib 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -49,9 +49,11 @@ int
 .sp
 int
 \fBTcl_ZlibStreamGet\fR(\fIzshandle, dataObj, count\fR)
+.sp
+\fBTcl_ZlibStreamSetCompressionDictionary\fR(\fIzshandle, compDict\fR)
 .fi
 .SH ARGUMENTS
-.AS Tcl_ZlibStream *zshandlePtr out
+.AS Tcl_ZlibStream zshandle in
 .AP Tcl_Interp *interp in
 The interpreter to store resulting compressed or uncompressed data in. Also
 where any error messages are written. For \fBTcl_ZlibStreamInit\fR, this can
@@ -64,7 +66,7 @@ addition, for decompression only, \fBTCL_ZLIB_FORMAT_AUTO\fR may also be
 chosen which can automatically detect whether the compressed data was in zlib
 or gzip format.
 .AP Tcl_Obj *dataObj in/out
-A byte-array object containing the data to be compressed or decompressed, or
+A byte-array value containing the data to be compressed or decompressed, or
 to which the data extracted from the stream is appended when passed to
 \fBTcl_ZlibStreamGet\fR.
 .AP int level in
@@ -108,6 +110,13 @@ trailer demanded by the format is written.
 .AP int count in
 The maximum number of bytes to get from the stream, or -1 to get all remaining
 bytes from the stream's buffers.
+.AP Tcl_Obj *compDict in
+A byte array value that is the compression dictionary to use with the stream.
+Note that this is \fInot a Tcl dictionary\fR, and it is recommended that this
+only ever be used with streams that were created with their \fIformat\fR set
+to \fBTCL_ZLIB_FORMAT_ZLIB\fR because the other formats have no mechanism to
+indicate whether a compression dictionary was present other than to fail on
+decompression.
 .BE
 .SH DESCRIPTION
 These functions form the interface from the Tcl library to the Zlib
@@ -122,7 +131,7 @@ the dictionary is only used when the \fIformat\fR parameter is
 \fBTCL_ZLIB_FORMAT_GZIP\fR or \fBTCL_ZLIB_FORMAT_AUTO\fR. For details of the
 contents of the dictionary, see the \fBGZIP OPTIONS DICTIONARY\fR section
 below. Upon success, both functions leave the resulting compressed or
-decompressed data in a byte-array object that is the Tcl interpreter's result;
+decompressed data in a byte-array value that is the Tcl interpreter's result;
 the returned value is a standard Tcl result code.
 .PP
 \fBTcl_ZlibAdler32\fR and \fBTcl_ZlibCRC32\fR compute checksums on arrays of
@@ -154,7 +163,7 @@ the \fBGZIP OPTIONS DICTIONARY\fR section below) can be given via the
 headers, and on decompression allows discovery of the existing headers. Note
 that the dictionary will be written to on decompression once sufficient data
 has been read to have a complete header. This means that the dictionary must
-be an unshared object in that case; a blank object created with
+be an unshared value in that case; a blank value created with
 \fBTcl_NewObj\fR is suggested.
 .PP
 Once a stream has been constructed, \fBTcl_ZlibStreamPut\fR is used to add
@@ -162,8 +171,8 @@ data to the stream and \fBTcl_ZlibStreamGet\fR is used to retrieve data from
 the stream after processing. Both return normal Tcl result codes and leave an
 error message in the result of the interpreter that the stream is registered
 with in the error case (if such a registration has been performed). With
-\fBTcl_ZlibStreamPut\fR, the data buffer object passed to it should not be
-modified afterwards. With \fBTcl_ZlibStreamGet\fR, the data buffer object
+\fBTcl_ZlibStreamPut\fR, the data buffer value passed to it should not be
+modified afterwards. With \fBTcl_ZlibStreamGet\fR, the data buffer value
 passed to it will have the data bytes appended to it. Internally to the
 stream, data is kept compressed so as to minimize the cost of buffer space.
 .PP
@@ -172,6 +181,25 @@ uncompressed data according to the format, and \fBTcl_ZlibStreamEof\fR returns
 a boolean value indicating whether the end of the uncompressed data has been
 reached.
 .PP
+\fBTcl_ZlibStreamSetCompressionDictionary\fR is used to control the
+compression dictionary used with the stream, a compression dictionary being an
+array of bytes (such as might be created with \fBTcl_NewByteArrayObj\fR) that
+is used to initialize the compression engine rather than leaving it to create
+it on the fly from the data being compressed. Setting a compression dictionary
+allows for more efficient compression in the case where the start of the data
+is highly regular, but it does require both the compressor and the
+decompressor to agreee on the value to use. Compression dictionaries are only
+fully supported for zlib-format data; on compression, they must be set before
+any data is sent in with \fBTcl_ZlibStreamPut\fR, and on decompression they
+should be set when \fBTcl_ZlibStreamGet\fR produces an \fBerror\fR with its
+\fB\-errorcode\fR set to
+.QW "\fBZLIB NEED_DICT\fI code\fR" ;
+the \fIcode\fR will be the Adler-32 checksum (see \fBTcl_ZlibAdler32\fR) of
+the compression dictionary sought. (Note that this is only true for
+zlib-format streams; gzip streams ignore compression dictionaries as the
+format specification doesn't permit them, and raw streams just produce a data
+error if the compression dictionary is missing or incorrect.)
+.PP
 If you wish to clear a stream and reuse it for a new compression or
 decompression action, \fBTcl_ZlibStreamReset\fR will do this and return a
 normal Tcl result code to indicate whether it was successful; if the stream is
@@ -187,9 +215,9 @@ and \fBTcl_ZlibStreamInit\fR is used to pass a dictionary of options about
 that is used to describe the gzip header in the compressed data. When creating
 compressed data, the dictionary is read and when unpacking compressed data the
 dictionary is written (in which case the \fIdictObj\fR parameter must refer to
-an unshared dictionary object).
+an unshared dictionary value).
 .PP
-The following fields in the dictionary object are understood. All other fields
+The following fields in the dictionary value are understood. All other fields
 are ignored. No field is required when creating a gzip-format stream.
 .TP
 \fBcomment\fR
diff --git a/doc/Tcl_Main.3 b/doc/Tcl_Main.3
index 0a69835..5fd5002 100644
--- a/doc/Tcl_Main.3
+++ b/doc/Tcl_Main.3
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_Main 3 8.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_Main, Tcl_SetStartupScript, Tcl_GetStartupScript, Tcl_SetMainLoop \- main program, startup script, and event loop definition for Tcl-based applications
diff --git a/doc/Thread.3 b/doc/Thread.3
index ca135ee..ac5f2ba 100644
--- a/doc/Thread.3
+++ b/doc/Thread.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Threads 3 "8.1" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_ConditionNotify, Tcl_ConditionWait, Tcl_ConditionFinalize, Tcl_GetThreadData, Tcl_MutexLock, Tcl_MutexUnlock, Tcl_MutexFinalize, Tcl_CreateThread, Tcl_JoinThread \- Tcl thread support
diff --git a/doc/ToUpper.3 b/doc/ToUpper.3
index d6b3006..587e76b 100644
--- a/doc/ToUpper.3
+++ b/doc/ToUpper.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_UtfToUpper 3 "8.1" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_UniCharToUpper, Tcl_UniCharToLower, Tcl_UniCharToTitle, Tcl_UtfToUpper, Tcl_UtfToLower, Tcl_UtfToTitle \- routines for manipulating the case of Unicode characters and UTF-8 strings
diff --git a/doc/TraceCmd.3 b/doc/TraceCmd.3
index 5cc1337..db2f5d5 100644
--- a/doc/TraceCmd.3
+++ b/doc/TraceCmd.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_TraceCommand 3 7.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_CommandTraceInfo, Tcl_TraceCommand, Tcl_UntraceCommand \- monitor renames and deletes of a command
@@ -86,11 +86,14 @@ operation is being performed on the command.  The bit
 \fBTCL_TRACE_DESTROYED\fR will be set in \fIflags\fR if the trace is about
 to be destroyed; this information may be useful to \fIproc\fR so that
 it can clean up its own internal data structures (see the section
-\fBTCL_TRACE_DESTROYED\fR below for more details).  Lastly, the bit
-\fBTCL_INTERP_DESTROYED\fR will be set if the entire interpreter is being
-destroyed.  When this bit is set, \fIproc\fR must be especially
-careful in the things it does (see the section \fBTCL_INTERP_DESTROYED\fR
-below).
+\fBTCL_TRACE_DESTROYED\fR below for more details).  Because the
+deletion of commands can take place as part of the deletion of the interp
+that contains them, \fIproc\fR must be careful about checking what
+the passed in \fIinterp\fR value can be called upon to do.
+The routine \fBTcl_InterpDeleted\fR is an important tool for this.
+When \fBTcl_InterpDeleted\fR returns 1, \fIproc\fR will not be able
+to invoke any scripts in \fIinterp\fR.  The function of \fIproc\fR
+in that circumstance is limited to the cleanup of its own data structures.
 .PP
 \fBTcl_UntraceCommand\fR may be used to remove a trace.  If the
 command specified by \fIinterp\fR, \fIcmdName\fR, and \fIflags\fR has
@@ -123,7 +126,8 @@ traces for a given command that have the same \fIproc\fR.
 .PP
 During rename traces, the command being renamed is visible with both
 names simultaneously, and the command still exists during delete
-traces (if \fBTCL_INTERP_DESTROYED\fR is not set).  However, there is no
+traces, unless the interp that contains it is being deleted.
+However, there is no
 mechanism for signaling that an error occurred in a trace procedure,
 so great care should be taken that errors do not get silently lost.
 .SH "MULTIPLE TRACES"
@@ -142,22 +146,5 @@ rename the command, the last renaming takes precedence.
 In a delete callback to \fIproc\fR, the \fBTCL_TRACE_DESTROYED\fR bit
 is set in \fIflags\fR.
 .\" Perhaps need some more comments here? - DKF
-.SH "TCL_INTERP_DESTROYED"
-.PP
-When an interpreter is destroyed, unset traces are called for
-all of its commands.
-The \fBTCL_INTERP_DESTROYED\fR bit will be set in the \fIflags\fR
-argument passed to the trace procedures.
-Trace procedures must be extremely careful in what they do if
-the \fBTCL_INTERP_DESTROYED\fR bit is set.
-It is not safe for the procedures to invoke any Tcl procedures
-on the interpreter, since its state is partially deleted.
-All that trace procedures should do under these circumstances is
-to clean up and free their own internal data structures.
-.SH BUGS
-.PP
-Tcl does not do any error checking to prevent trace procedures
-from misusing the interpreter during traces with \fBTCL_INTERP_DESTROYED\fR
-set.
 .SH KEYWORDS
 clientData, trace, command
diff --git a/doc/TraceVar.3 b/doc/TraceVar.3
index 6201a4f..97d035b 100644
--- a/doc/TraceVar.3
+++ b/doc/TraceVar.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_TraceVar 3 7.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_TraceVar, Tcl_TraceVar2, Tcl_UntraceVar, Tcl_UntraceVar2, Tcl_VarTraceInfo, Tcl_VarTraceInfo2 \- monitor accesses to a variable
diff --git a/doc/Translate.3 b/doc/Translate.3
index 55233c3..0f223e4 100644
--- a/doc/Translate.3
+++ b/doc/Translate.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_TranslateFileName 3 8.1 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_TranslateFileName \- convert file name to native form and replace tilde with home directory
diff --git a/doc/UniCharIsAlpha.3 b/doc/UniCharIsAlpha.3
index 6029b2d..ea6fc5b 100644
--- a/doc/UniCharIsAlpha.3
+++ b/doc/UniCharIsAlpha.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_UniCharIsAlpha 3 "8.1" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_UniCharIsAlnum, Tcl_UniCharIsAlpha, Tcl_UniCharIsControl, Tcl_UniCharIsDigit, Tcl_UniCharIsGraph, Tcl_UniCharIsLower, Tcl_UniCharIsPrint, Tcl_UniCharIsPunct, Tcl_UniCharIsSpace, Tcl_UniCharIsUpper, Tcl_UniCharIsWordChar \- routines for classification of Tcl_UniChar characters
diff --git a/doc/UpVar.3 b/doc/UpVar.3
index f1e6fe4..8e7ba08 100644
--- a/doc/UpVar.3
+++ b/doc/UpVar.3
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_UpVar 3 7.4 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_UpVar, Tcl_UpVar2 \- link one variable to another
diff --git a/doc/Utf.3 b/doc/Utf.3
index 55906e7..3b2ef91 100644
--- a/doc/Utf.3
+++ b/doc/Utf.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Utf 3 "8.1" Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_UniChar, Tcl_UniCharCaseMatch, Tcl_UniCharNcasecmp, Tcl_UniCharToUtf, Tcl_UtfToUniChar, Tcl_UniCharToUtfDString, Tcl_UtfToUniCharDString, Tcl_UniCharLen, Tcl_UniCharNcmp, Tcl_UtfCharComplete, Tcl_NumUtfChars, Tcl_UtfFindFirst, Tcl_UtfFindLast, Tcl_UtfNext, Tcl_UtfPrev, Tcl_UniCharAtIndex, Tcl_UtfAtIndex, Tcl_UtfBackslash \- routines for manipulating UTF-8 strings
diff --git a/doc/WrongNumArgs.3 b/doc/WrongNumArgs.3
index a2908e9..33807d5 100644
--- a/doc/WrongNumArgs.3
+++ b/doc/WrongNumArgs.3
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH Tcl_WrongNumArgs 3 8.0 Tcl "Tcl Library Procedures"
+.so man.macros
 .BS
 .SH NAME
 Tcl_WrongNumArgs \- generate standard error message for wrong number of arguments
@@ -18,7 +18,7 @@ Tcl_WrongNumArgs \- generate standard error message for wrong number of argument
 .AS "Tcl_Obj *const" *message
 .AP Tcl_Interp interp in
 Interpreter in which error will be reported: error message gets stored
-in its result object.
+in its result value.
 .AP int objc in
 Number of leading arguments from \fIobjv\fR to include in error
 message.
@@ -34,13 +34,13 @@ of the command.  This argument may be NULL.
 \fBTcl_WrongNumArgs\fR is a utility procedure that is invoked by
 command procedures when they discover that they have received the
 wrong number of arguments.  \fBTcl_WrongNumArgs\fR generates a
-standard error message and stores it in the result object of
+standard error message and stores it in the result value of
 \fIinterp\fR.  The message includes the \fIobjc\fR initial
 elements of \fIobjv\fR plus \fImessage\fR.  For example, if
 \fIobjv\fR consists of the values \fBfoo\fR and \fBbar\fR,
 \fIobjc\fR is 1, and \fImessage\fR is
 .QW "\fBfileName count\fR"
-then \fIinterp\fR's result object will be set to the following
+then \fIinterp\fR's result value will be set to the following
 string:
 .PP
 .CS
@@ -57,17 +57,17 @@ wrong # args: should be "foo bar fileName count"
 \fBstring\fR and the Tk widget commands, which use the first argument
 as a subcommand.  
 .PP
-Some of the objects in the \fIobjv\fR array may be abbreviations for
+Some of the values in the \fIobjv\fR array may be abbreviations for
 a subcommand.  The command
-\fBTcl_GetIndexFromObj\fR will convert the abbreviated string object
+\fBTcl_GetIndexFromObj\fR will convert the abbreviated string value
 into an \fIindexObject\fR.  If an error occurs in the parsing of the
 subcommand we would like to use the full subcommand name rather than
 the abbreviation.  If the \fBTcl_WrongNumArgs\fR command finds any
 \fIindexObjects\fR in the \fIobjv\fR array it will use the full subcommand
 name in the error message instead of the abbreviated name that was
 originally passed in.  Using the above example, let us assume that
-\fIbar\fR is actually an abbreviation for \fIbarfly\fR and the object
-is now an indexObject because it was passed to
+\fIbar\fR is actually an abbreviation for \fIbarfly\fR and the value
+is now an \fIindexObject\fR because it was passed to
 \fBTcl_GetIndexFromObj\fR.  In this case the error message would be:
 .PP
 .CS
diff --git a/doc/after.n b/doc/after.n
index d6181c6..e61bb88 100644
--- a/doc/after.n
+++ b/doc/after.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH after n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/append.n b/doc/append.n
index 034068d..4b3cfd0 100644
--- a/doc/append.n
+++ b/doc/append.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH append n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/apply.n b/doc/apply.n
index 9d373e1..4b730ff 100644
--- a/doc/apply.n
+++ b/doc/apply.n
@@ -2,8 +2,8 @@
 '\" Copyright (c) 2006 Miguel Sofer
 '\" Copyright (c) 2006 Donal K. Fellows
 '\"
-.so man.macros
 .TH apply n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/array.n b/doc/array.n
index 47f9624..e253a37 100644
--- a/doc/array.n
+++ b/doc/array.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH array n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/bgerror.n b/doc/bgerror.n
index ac53eca..ea8fe2a 100644
--- a/doc/bgerror.n
+++ b/doc/bgerror.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH bgerror n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -85,6 +85,9 @@ proc bgerror {message} {
 }
 .CE
 .SH "SEE ALSO"
-after(n), interp(n), tclvars(n)
+after(n), errorCode(n), errorInfo(n), interp(n)
 .SH KEYWORDS
 background error, reporting
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/binary.n b/doc/binary.n
index 68bf9cc..014704d 100644
--- a/doc/binary.n
+++ b/doc/binary.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH binary n 8.0 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -36,6 +36,13 @@ The \fBbinary encode\fR and \fBbinary decode\fR subcommands convert
 binary data to or from string encodings such as base64 (used in MIME
 messages for example).
 .VE 8.6
+.PP
+Note that other operations on binary data, such as taking a subsequence of it,
+getting its length, or reinterpreting it as a string in some encoding, are
+done by other Tcl commands (respectively \fBstring range\fR,
+\fBstring length\fR and \fBencoding convertfrom\fR in the example cases).  A
+binary string in Tcl is merely one where all the characters it contains are in
+the range \eu0000\-\eu00FF.
 .SH "BINARY ENCODE AND DECODE"
 .VS 8.6
 .PP
@@ -95,13 +102,14 @@ between Unix systems and on USENET, but is less common these days, having been
 largely superseded by the \fBbase64\fR binary encoding.
 .RS
 .PP
-During encoding, the following options are supported:
-'\" This is wrong! The uuencode format had more complexity than this!
+During encoding, the following options are supported (though changing them may
+produce files that other implementations of decoders cannot process):
 .TP
 \fB\-maxlen \fIlength\fR
 .
 Indicates that the output should be split into lines of no more than
-\fIlength\fR characters. By default, lines are not split.
+\fIlength\fR characters. By default, lines are split every 61 characters, and
+this must be in the range 3 to 85 due to limitations in the encoding.
 .TP
 \fB\-wrapchar \fIcharacter\fR
 .
@@ -114,7 +122,11 @@ During decoding, the following options are supported:
 .TP
 \fB\-strict\fR
 .
-Instructs the decoder to throw an error if it encounters whitespace characters. Otherwise it ignores them.
+Instructs the decoder to throw an error if it encounters unexpected whitespace
+characters. Otherwise it ignores them.
+.PP
+Note that neither the encoder nor the decoder handle the header and footer of
+the uuencode format.
 .RE
 .VE 8.6
 .SH "BINARY FORMAT"
@@ -855,6 +867,7 @@ architectures, use their textual representation (as produced by
 .PP
 This is a procedure to write a Tcl string to a binary-encoded channel as
 UTF-8 data preceded by a length word:
+.PP
 .CS
 proc \fIwriteString\fR {channel string} {
     set data [encoding convertto utf-8 $string]
@@ -865,6 +878,7 @@ proc \fIwriteString\fR {channel string} {
 .PP
 This procedure reads a string from a channel that was written by the
 previously presented \fIwriteString\fR procedure:
+.PP
 .CS
 proc \fIreadString\fR {channel} {
     if {![\fBbinary scan\fR [read $channel 4] I length]} {
@@ -877,6 +891,7 @@ proc \fIreadString\fR {channel} {
 .PP
 This converts the contents of a file (named in the variable \fIfilename\fR) to
 base64 and prints them:
+.PP
 .CS
 set f [open $filename rb]
 set data [read $f]
@@ -884,9 +899,10 @@ close $f
 puts [\fBbinary encode\fR base64 \-maxlen 64 $data]
 .CE
 .SH "SEE ALSO"
-format(n), scan(n), tclvars(n)
+encoding(n), format(n), scan(n), string(n), tcl_platform(n)
 .SH KEYWORDS
 binary, format, scan
 '\" Local Variables:
 '\" mode: nroff
+'\" fill-column: 78
 '\" End:
diff --git a/doc/break.n b/doc/break.n
index cef37c6..3e4ce5f 100644
--- a/doc/break.n
+++ b/doc/break.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH break n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/case.n b/doc/case.n
index 0155a61..54d5bf4 100644
--- a/doc/case.n
+++ b/doc/case.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH case n 7.0 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/catch.n b/doc/catch.n
index a05ca71..94fa5dd 100644
--- a/doc/catch.n
+++ b/doc/catch.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH catch n "8.5" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -115,7 +115,8 @@ if { [\fBcatch\fR {open $someFile w} fid] } {
 There are more complex examples of \fBcatch\fR usage in the
 documentation for the \fBreturn\fR command.
 .SH "SEE ALSO" 
-break(n), continue(n), dict(n), error(n), info(n), return(n), tclvars(n)
+break(n), continue(n), dict(n), error(n), errorCode(n), errorInfo(n), info(n),
+return(n)
 .SH KEYWORDS
 catch, error, exception
 '\" Local Variables:
diff --git a/doc/cd.n b/doc/cd.n
index eb3854c..67cdd17 100644
--- a/doc/cd.n
+++ b/doc/cd.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH cd n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/chan.n b/doc/chan.n
index c518455..12b2c81 100644
--- a/doc/chan.n
+++ b/doc/chan.n
@@ -3,8 +3,8 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-.so man.macros
 .TH chan n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/class.n b/doc/class.n
index 88d1b44..198ae41 100644
--- a/doc/class.n
+++ b/doc/class.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH class n 0.1 TclOO "TclOO Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/clock.n b/doc/clock.n
index 8708029..910ebb8 100644
--- a/doc/clock.n
+++ b/doc/clock.n
@@ -2,8 +2,8 @@
 '\" Generated from file './doc/clock.dt' by tcllib/doctools with format 'nroff'
 '\" Copyright (c) 2004 Kevin B. Kenny <kennykb@acm.org>. All rights reserved.
 '\"
-.so man.macros
 .TH "clock" n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 .SH NAME
 clock \- Obtain and manipulate dates and times
@@ -637,8 +637,9 @@ On output, produces a locale-dependent time of day representation on a
 12-hour clock. On input, accepts whatever \fB%r\fR produces.
 .TP
 \fB%R\fR
-On output, produces a locale-dependent time of day representation on a
-24-hour clock. On input, accepts whatever \fB%R\fR produces.
+On output, the time in 24-hour notation (%H:%M). For a version
+including the seconds, see \fB%T\fR below. On input, accepts whatever
+\fB%R\fR produces.
 .TP
 \fB%s\fR
 On output, simply formats the \fItimeVal\fR argument as a decimal
diff --git a/doc/close.n b/doc/close.n
index 2826d82..63da75b 100644
--- a/doc/close.n
+++ b/doc/close.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH close n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/concat.n b/doc/concat.n
index b079b30..575b9df 100644
--- a/doc/concat.n
+++ b/doc/concat.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH concat n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/continue.n b/doc/continue.n
index de2f07c..17d16b4 100644
--- a/doc/continue.n
+++ b/doc/continue.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH continue n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/copy.n b/doc/copy.n
index f5002f8..100d564 100644
--- a/doc/copy.n
+++ b/doc/copy.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH copy n 0.1 TclOO "TclOO Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/coroutine.n b/doc/coroutine.n
index 035d58a..c99f8d3 100644
--- a/doc/coroutine.n
+++ b/doc/coroutine.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH coroutine n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/dde.n b/doc/dde.n
index 0acceac..37d491b 100644
--- a/doc/dde.n
+++ b/doc/dde.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH dde n 1.4 dde "Tcl Bundled Packages"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -83,9 +83,11 @@ asynchronous invocation.  The command returns an error message if the
 script did not run, unless the \fB\-async\fR flag was used, in which case
 the command returns immediately with no error.
 .VS 8.6
-The \fB\-binary\fR option treats \fIdata\fR as binary data, otherwise an utf-8
-string is sent.  Combining \fB-binary\fR with the result of
-\fBencoding convertto\fR may be used to send data in arbitrary encodings.
+Without the \fB\-binary\fR option all data will be sent in unicode. For
+dde clients which don't implement the CF_UNICODE clipboard format, this
+will automatically be translated to the system encoding. You can use 
+the \fB\-binary\fR option in combination with the result of
+\fBencoding convertto\fR to send data in any other encoding.
 .VE 8.6
 .TP
 \fBdde poke\fR ?\fB\-binary\fR? \fIservice topic item data\fR
@@ -98,8 +100,11 @@ on.  The \fIitem\fR is also application specific and is often not used, but
 it must always be non-null.  The \fIdata\fR field is given to the remote
 application.
 .VS 8.6
-The \fB\-binary\fR option treats \fIdata\fR as binary data, otherwise an utf-8
-string is sent.
+Without the \fB\-binary\fR option all data will be sent in unicode. For
+dde clients which don't implement the CF_UNICODE clipboard format, this
+will automatically be translated to the system encoding. You can use 
+the \fB\-binary\fR option in combination with the result of
+\fBencoding convertto\fR to send data in any other encoding.
 .VE 8.6
 .TP
 \fBdde request\fR ?\fB\-binary\fR? \fIservice topic item\fR
diff --git a/doc/define.n b/doc/define.n
index 1c36ca3..7599ec0 100644
--- a/doc/define.n
+++ b/doc/define.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH define n 0.3 TclOO "TclOO Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/dict.n b/doc/dict.n
index 361a112..fecad85 100644
--- a/doc/dict.n
+++ b/doc/dict.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH dict n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -25,11 +25,12 @@ below for a description), depending on \fIoption\fR.  The legal
 This appends the given string (or strings) to the value that the given
 key maps to in the dictionary value contained in the given variable,
 writing the resulting dictionary value back to that variable.
-Non-existent keys are treated as if they map to an empty string.
+Non-existent keys are treated as if they map to an empty string. The
+updated dictionary value is returned.
 .TP
 \fBdict create \fR?\fIkey value ...\fR?
 .
-Create a new dictionary that contains each of the key/value mappings
+Return a new dictionary that contains each of the key/value mappings
 listed as arguments (keys and values alternating, with each key being
 followed by its associated value.)
 .TP
@@ -53,10 +54,10 @@ The key rule only matches those key/value pairs whose keys match any
 of the given patterns (in the style of \fBstring match\fR.)
 .VE 8.6
 .TP
-\fBdict filter \fIdictionaryValue \fBscript {\fIkeyVar valueVar\fB} \fIscript\fR
+\fBdict filter \fIdictionaryValue \fBscript {\fIkeyVariable valueVariable\fB} \fIscript\fR
 .
 The script rule tests for matching by assigning the key to the
-\fIkeyVar\fR and the value to the \fIvalueVar\fR, and then evaluating
+\fIkeyVariable\fR and the value to the \fIvalueVariable\fR, and then evaluating
 the given script which should return a boolean value (with the
 key/value pair only being included in the result of the \fBdict
 filter\fR when a true value is returned.)  Note that the first
@@ -74,7 +75,7 @@ of the given patterns (in the style of \fBstring match\fR.)
 .VE 8.6
 .RE
 .TP
-\fBdict for {\fIkeyVar valueVar\fB} \fIdictionaryValue body\fR
+\fBdict for {\fIkeyVariable valueVariable\fB} \fIdictionaryValue body\fR
 .
 This command takes three arguments, the first a two-element list of
 variable names (for the key and value respectively of each mapping in
@@ -121,7 +122,8 @@ not specified) to the value that the given key maps to in the
 dictionary value contained in the given variable, writing the
 resulting dictionary value back to that variable. Non-existent keys
 are treated as if they map to 0. It is an error to increment a value
-for an existing key if that value is not an integer.
+for an existing key if that value is not an integer. The updated
+dictionary value is returned.
 .TP
 \fBdict info \fIdictionaryValue\fR
 .
@@ -145,7 +147,33 @@ to in the dictionary value contained in the given variable, writing
 the resulting dictionary value back to that variable. Non-existent
 keys are treated as if they map to an empty list, and it is legal for
 there to be no items to append to the list. It is an error for the
-value that the key maps to to not be representable as a list.
+value that the key maps to to not be representable as a list. The
+updated dictionary value is returned.
+.TP
+\fBdict map \fR{\fIkeyVariable valueVariable\fR} \fIdictionaryValue body\fR
+.
+This command applies a transformation to each element of a dictionary,
+returning a new dictionary. It takes three arguments: the first is a
+two-element list of variable names (for the key and value respectively of each
+mapping in the dictionary), the second the dictionary value to iterate across,
+and the third a script to be evaluated for each mapping with the key and value
+variables set appropriately (in the manner of \fBlmap\fR). In an iteration
+where the evaluated script completes normally (\fBTCL_OK\fR, as opposed to an
+\fBerror\fR, etc.) the result of the script is put into an accumulator
+dictionary using the key that is the current contents of the \fIkeyVariable\fR
+variable at that point. The result of the \fBdict map\fR command is the
+accumulator dictionary after all keys have been iterated over.
+.RS
+.PP
+If the evaluation of the body for any particular step generates a \fBbreak\fR,
+no further pairs from the dictionary will be iterated over and the \fBdict
+map\fR command will terminate successfully immediately. If the evaluation of
+the body for a particular step generates a \fBcontinue\fR result, the current
+iteration is aborted and the accumulator dictionary is not modified. The order
+of iteration is the natural order of the dictionary (typically the order in
+which the keys were added to the dictionary; the order is the same as that
+used in \fBdict for\fR).
+.RE
 .TP
 \fBdict merge \fR?\fIdictionaryValue ...\fR?
 .
@@ -177,7 +205,7 @@ This operation takes the name of a variable containing a dictionary
 value and places an updated dictionary value in that variable
 containing a mapping from the given key to the given value. When
 multiple keys are present, this operation creates or updates a chain
-of nested dictionaries.
+of nested dictionaries. The updated dictionary value is returned.
 .TP
 \fBdict size \fIdictionaryValue\fR
 .
@@ -191,7 +219,8 @@ dictionary value in that variable that does not contain a mapping for
 the given key. Where multiple keys are present, this describes a path
 through nested dictionaries to the mapping to remove. At least one key
 must be specified, but the last key on the key-path need not exist.
-All other components on the path must exist.
+All other components on the path must exist. The updated dictionary
+value is returned.
 .TP
 \fBdict update \fIdictionaryVariable key varName \fR?\fIkey varName ...\fR? \fIbody\fR
 .
@@ -408,9 +437,9 @@ puts $foo
 #    prints: \fIa b foo {a b} bar 2 baz 3\fR
 .CE
 .SH "SEE ALSO"
-append(n), array(n), foreach(n), incr(n), list(n), lappend(n), set(n)
+append(n), array(n), foreach(n), mapeach(n), incr(n), list(n), lappend(n), set(n)
 .SH KEYWORDS
-dictionary, create, update, lookup, iterate, filter
+dictionary, create, update, lookup, iterate, filter, map
 '\" Local Variables:
 '\" mode: nroff
 '\" End:
diff --git a/doc/encoding.n b/doc/encoding.n
index 5269a18..5782199 100644
--- a/doc/encoding.n
+++ b/doc/encoding.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH encoding n "8.1" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 .SH NAME
 encoding \- Manipulate encodings
@@ -14,10 +14,21 @@ encoding \- Manipulate encodings
 .BE
 .SH INTRODUCTION
 .PP
-Strings in Tcl are encoded using 16-bit Unicode characters.  Different
-operating system interfaces or applications may generate strings in
-other encodings such as Shift-JIS.  The \fBencoding\fR command helps
-to bridge the gap between Unicode and these other formats.
+Strings in Tcl are logically a sequence of 16-bit Unicode characters.
+These strings are represented in memory as a sequence of bytes that
+may be in one of several encodings: modified UTF\-8 (which uses 1 to 3
+bytes per character), 16-bit
+.QW Unicode
+(which uses 2 bytes per character, with an endianness that is
+dependent on the host architecture), and binary (which uses a single
+byte per character but only handles a restricted range of characters).
+Tcl does not guarantee to always use the same encoding for the same
+string.
+.PP
+Different operating system interfaces or applications may generate
+strings in other encodings such as Shift\-JIS.  The \fBencoding\fR
+command helps to bridge the gap between Unicode and these other
+formats.
 .SH DESCRIPTION
 .PP
 Performs one of several encoding related operations, depending on
@@ -37,8 +48,9 @@ system encoding is used.
 Convert \fIstring\fR from Unicode to the specified \fIencoding\fR.
 The result is a sequence of bytes that represents the converted
 string.  Each byte is stored in the lower 8-bits of a Unicode
-character.  If \fIencoding\fR is not specified, the current
-system encoding is used.
+character (indeed, the resulting string is a binary string as far as
+Tcl is concerned, at least initially).  If \fIencoding\fR is not
+specified, the current system encoding is used.
 .TP
 \fBencoding dirs\fR ?\fIdirectoryList\fR?
 .
@@ -56,6 +68,11 @@ searchable directory, that element is ignored.
 .
 Returns a list containing the names of all of the encodings that are
 currently available. 
+The encodings
+.QW utf-8
+and
+.QW iso8859-1
+are guaranteed to be present in the list.
 .TP
 \fBencoding system\fR ?\fIencoding\fR?
 .
@@ -73,7 +90,7 @@ However, because the \fBsource\fR command always reads files using the
 current system encoding, Tcl will only source such files correctly
 when the encoding used to write the file is the same.  This tends not
 to be true in an internationalized setting.  For example, if such a
-file was sourced in North America (where the ISO8859-1 is normally
+file was sourced in North America (where the ISO8859\-1 is normally
 used), each byte in the file would be treated as a separate character
 that maps to the 00 page in Unicode.  The resulting Tcl strings will
 not contain the expected Japanese characters.  Instead, they will
@@ -93,3 +110,6 @@ which is the Hiragana letter HA.
 Tcl_GetEncoding(3)
 .SH KEYWORDS
 encoding, unicode
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/eof.n b/doc/eof.n
index 017b10e..75f3c48 100644
--- a/doc/eof.n
+++ b/doc/eof.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH eof n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/error.n b/doc/error.n
index d61bd7b..a95c691 100644
--- a/doc/error.n
+++ b/doc/error.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH error n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/eval.n b/doc/eval.n
index da88757..3ef5023 100644
--- a/doc/eval.n
+++ b/doc/eval.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH eval n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -75,7 +75,8 @@ However, the last line would now normally be written without
 set var [linsert $var 0 {*}$args]
 .CE
 .SH "SEE ALSO"
-catch(n), concat(n), error(n), interp(n), list(n), namespace(n), subst(n), tclvars(n), uplevel(n)
+catch(n), concat(n), error(n), errorCode(n), errorInfo(n), interp(n), list(n),
+namespace(n), subst(n), uplevel(n)
 .SH KEYWORDS
 concatenate, evaluate, script
 '\" Local Variables:
diff --git a/doc/exec.n b/doc/exec.n
index 5072d61..5b27e40 100644
--- a/doc/exec.n
+++ b/doc/exec.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH exec n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -269,17 +269,13 @@ present, as is done when launching applications under wish.  It is desirable
 to have console applications hidden and detached.  This is a designed-in
 limitation as \fBexec\fR wants to communicate over pipes.  The Expect
 extension addresses this issue when communicating with a TUI application.
-.RE
-.TP
-\fBWindows NT\fR
-.
+.PP
 When attempting to execute an application, \fBexec\fR first searches for
 the name as it was specified.  Then, in order, \fB.com\fR, \fB.exe\fR, and
 \fB.bat\fR are appended to the end of the specified name and it searches
 for the longer name.  If a directory name was not specified as part of the
 application name, the following directories are automatically searched in
 order when attempting to locate the application:
-.RS
 .IP \(bu 3
 The directory from which the Tcl executable was loaded.
 .IP \(bu 3
@@ -299,67 +295,6 @@ the caller must prepend the desired command with
 because built-in commands are not implemented using executables.
 .RE
 .TP
-\fBWindows 9x\fR
-.
-When attempting to execute an application, \fBexec\fR first searches for
-the name as it was specified.  Then, in order, \fB.com\fR, \fB.exe\fR, and
-\fB.bat\fR are appended to the end of the specified name and it searches
-for the longer name.  If a directory name was not specified as part of the
-application name, the following directories are automatically searched in
-order when attempting to locate the application:
-.RS
-.IP \(bu 3
-The directory from which the Tcl executable was loaded.
-.IP \(bu 3
-The current directory.
-.IP \(bu 3
-The Windows 9x system directory.
-.IP \(bu 3
-The Windows 9x home directory.
-.IP \(bu 3
-The directories listed in the path.
-.RE
-.RS
-.PP
-In order to execute shell built-in commands like \fBdir\fR and \fBcopy\fR,
-the caller must prepend the desired command with
-.QW "\fBcommand.com /c\0\fR"
-because built-in commands are not implemented using executables.
-.PP
-Once a 16-bit DOS application has read standard input from a console and 
-then quit, all subsequently run 16-bit DOS applications will see the 
-standard input as already closed.  32-bit applications do not have this
-problem and will run correctly, even after a 16-bit DOS application thinks 
-that standard input is closed.  There is no known workaround for this bug
-at this time.
-.PP
-Redirection between the \fBNUL:\fR device and a 16-bit application does not
-always work.  When redirecting from \fBNUL:\fR, some applications may hang,
-others will get an infinite stream of
-.QW 0x01
-bytes, and some will actually
-correctly get an immediate end-of-file; the behavior seems to depend upon 
-something compiled into the application itself.  When redirecting greater than
-4K or so to \fBNUL:\fR, some applications will hang.  The above problems do not
-happen with 32-bit applications.  
-.PP
-All DOS 16-bit applications are run synchronously.  All standard input from
-a pipe to a 16-bit DOS application is collected into a temporary file; the
-other end of the pipe must be closed before the 16-bit DOS application
-begins executing.  All standard output or error from a 16-bit DOS
-application to a pipe is collected into temporary files; the application
-must terminate before the temporary files are redirected to the next stage
-of the pipeline.  This is due to a workaround for a Windows 95 bug in the
-implementation of pipes, and is how the standard Windows 95 DOS shell
-handles pipes itself.
-.PP
-Certain applications, such as \fBcommand.com\fR, should not be executed
-interactively.  Applications which directly access the console window,
-rather than reading from their standard input and writing to their standard
-output may fail, hang Tcl, or even hang the system if their own private
-console window is not available to them.
-.RE
-.TP
 \fBUnix\fR (including Mac OS X)
 .
 The \fBexec\fR command is fully functional and works as described.
diff --git a/doc/exit.n b/doc/exit.n
index ceb0529..ab5c87d 100644
--- a/doc/exit.n
+++ b/doc/exit.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH exit n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/expr.n b/doc/expr.n
index 6d965fb..a595207 100644
--- a/doc/expr.n
+++ b/doc/expr.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH expr n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -39,9 +39,9 @@ additional operators not found in C.
 .SS OPERANDS
 .PP
 A Tcl expression consists of a combination of operands, operators,
-and parentheses.
+parentheses and commas.
 White space may be used between the operands and operators and
-parentheses; it is ignored by the expression's instructions.
+parentheses (or commas); it is ignored by the expression's instructions.
 Where possible, operands are interpreted as integer values.
 Integer values may be specified in decimal (the normal case), in binary
 (if the first two characters of the operand are \fB0b\fR), in octal
@@ -283,6 +283,18 @@ rules for resolving functions in namespaces. Either
 current]::tcl::mathfunc::sin\fR will satisfy the request, and others
 may as well (depending on the current \fBnamespace path\fR setting).
 .PP
+Some mathematical functions have several arguments, separated by commas like in C. Thus:
+.PP
+.CS
+\fBexpr\fR {hypot($x,$y)}
+.CE
+.PP
+ends up as
+.PP
+.CS
+tcl::mathfunc::hypot $x $y
+.CE
+.PP
 See the \fBmathfunc\fR(n) manual page for the math functions that are
 available by default.
 .SS "TYPES, OVERFLOW, AND PRECISION"
diff --git a/doc/fconfigure.n b/doc/fconfigure.n
index ac0366c..ca23314 100644
--- a/doc/fconfigure.n
+++ b/doc/fconfigure.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH fconfigure n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -72,8 +72,8 @@ initially set to \fBline\fR, and \fBstderr\fR is set to \fBnone\fR.
 .
 \fINewvalue\fR must be an integer; its value is used to set the size of
 buffers, in bytes, subsequently allocated for this channel to store input
-or output. \fINewvalue\fR must be between ten and one million, allowing
-buffers of ten to one million bytes in size.
+or output. \fINewvalue\fR must be between one and one million, allowing
+buffers of one to one million bytes in size.
 .TP
 \fB\-encoding\fR \fIname\fR
 .
diff --git a/doc/fcopy.n b/doc/fcopy.n
index 6a4bf1a..071896c 100644
--- a/doc/fcopy.n
+++ b/doc/fcopy.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH fcopy n 8.0 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -46,8 +46,11 @@ non-blocking mode; the \fBfcopy\fR command takes care of that automatically.
 However, it is necessary to enter the event loop by using
 the \fBvwait\fR command or by using Tk.
 .PP
-You are not allowed to do other I/O operations with
-\fIinchan\fR or \fIoutchan\fR during a background \fBfcopy\fR.
+You are not allowed to do other input operations with \fIinchan\fR, or
+output operations with \fIoutchan\fR, during a background
+\fBfcopy\fR. The converse is entirely legitimate, as exhibited by the
+bidirectional fcopy example below.
+.PP
 If either \fIinchan\fR or \fIoutchan\fR get closed
 while the copy is in progress, the current copy is stopped
 and the command callback is \fInot\fR made.
@@ -57,7 +60,7 @@ then all data already queued for \fIoutchan\fR is written out.
 Note that \fIinchan\fR can become readable during a background copy.
 You should turn off any \fBfileevent\fR handlers during a background
 copy so those handlers do not interfere with the copy.
-Any I/O attempted by a \fBfileevent\fR handler will get a
+Any wrong-sided I/O attempted (by a \fBfileevent\fR handler or otherwise) will get a
 .QW "channel busy"
 error.
 .PP
@@ -149,6 +152,24 @@ set total 0
         -command [list CopyMore $in $out $chunk]
 vwait done
 .CE
+.PP
+The fourth example starts an asynchronous, bidirectional fcopy between
+two sockets. Those could also be pipes from two [open "|hal 9000" r+]
+(though their conversation would remain secret to the script, since
+all four fileevent slots are busy).
+.PP
+.CS
+set flows 2
+proc Done {dir args} {
+     global flows done
+     puts "$dir is over."
+     incr flows -1
+     if {$flows<=0} {set done 1}
+}
+\fBfcopy\fR $sok1 $sok2 -command [list Done UP]
+\fBfcopy\fR $sok2 $sok1 -command [list Done DOWN]
+vwait done
+.CE
 .SH "SEE ALSO"
 eof(n), fblocked(n), fconfigure(n), file(n)
 .SH KEYWORDS
diff --git a/doc/file.n b/doc/file.n
index eef4647..4c6465a 100644
--- a/doc/file.n
+++ b/doc/file.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH file n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -241,11 +241,9 @@ as relative to the cwd).  Furthermore,
 paths are always expanded
 to absolute form.  When creating links on filesystems that either do not
 support any links, or do not support the specific type requested, an
-error message will be returned.  In particular Windows 95, 98 and ME do
-not support any links at present, but most Unix platforms support both
-symbolic and hard links (the latter for files only) and Windows
-NT/2000/XP (on NTFS drives) support symbolic
-directory links and hard file links.
+error message will be returned.  Most Unix platforms support both
+symbolic and hard links (the latter for files only). Windows
+supports symbolic directory links and hard file links on NTFS drives.
 .RE
 .TP
 \fBfile lstat \fIname varName\fR
@@ -481,6 +479,13 @@ Returns \fB1\fR if file \fIname\fR is writable by the current user,
 .
 These commands always operate using the real user and group identifiers,
 not the effective ones. 
+.TP
+\fBWindows\fR\0\0\0\0
+.
+The \fBfile owned\fR subcommand currently always reports that the current user
+is the owner of the file, without regard for what the operating system
+believes to be true, making an ownership test useless. This issue (#3613671)
+may be fixed in a future release of Tcl.
 .SH EXAMPLES
 .PP
 This procedure shows how to search for C files in a given directory
diff --git a/doc/fileevent.n b/doc/fileevent.n
index df48d2a..8f6b880 100644
--- a/doc/fileevent.n
+++ b/doc/fileevent.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH fileevent n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -80,13 +80,16 @@ A channel is considered to be writable if at least one byte of data
 can be written to the underlying file or device without blocking,
 or if an error condition is present on the underlying file or device.
 .PP
-Event-driven I/O works best for channels that have been
-placed into nonblocking mode with the \fBfconfigure\fR command.
-In blocking mode, a \fBputs\fR command may block if you give it
-more data than the underlying file or device can accept, and a
-\fBgets\fR or \fBread\fR command will block if you attempt to read
-more data than is ready;  no events will be processed while the
-commands block.
+Event-driven I/O works best for channels that have been placed into
+nonblocking mode with the \fBfconfigure\fR command.  In blocking mode,
+a \fBputs\fR command may block if you give it more data than the
+underlying file or device can accept, and a \fBgets\fR or \fBread\fR
+command will block if you attempt to read more data than is ready; a
+readable underlying file or device may not even guarantee that a
+blocking [read 1] will succeed (counter-examples being multi-byte
+encodings, compression or encryption transforms ). In all such cases,
+no events will be processed while the commands block.
+.PP
 In nonblocking mode \fBputs\fR, \fBread\fR, and \fBgets\fR never block.
 See the documentation for the individual commands for information
 on how they handle blocking and nonblocking channels.
diff --git a/doc/filename.n b/doc/filename.n
index d481fc9..8b8b00b 100644
--- a/doc/filename.n
+++ b/doc/filename.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH filename n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/flush.n b/doc/flush.n
index b8bf3e9..d266d91 100644
--- a/doc/flush.n
+++ b/doc/flush.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH flush n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/for.n b/doc/for.n
index 4c65793..40c7cab 100644
--- a/doc/for.n
+++ b/doc/for.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH for n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/foreach.n b/doc/foreach.n
index fb075d3..89a11f6 100644
--- a/doc/foreach.n
+++ b/doc/foreach.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH foreach n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/format.n b/doc/format.n
index 23dfe60..076a820 100644
--- a/doc/format.n
+++ b/doc/format.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH format n 8.1 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/gets.n b/doc/gets.n
index fe24058..0150f29 100644
--- a/doc/gets.n
+++ b/doc/gets.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH gets n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/glob.n b/doc/glob.n
index 7b71189..a2cbce2 100644
--- a/doc/glob.n
+++ b/doc/glob.n
@@ -4,8 +4,8 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-.so man.macros
 .TH glob n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -204,13 +204,7 @@ of the form
 it refers to the home
 directory of the user whose account information resides on the specified NT
 domain server. Otherwise, user account information is obtained from
-the local computer. On Windows 95 and 98, \fBglob\fR accepted patterns
-like
-.QW .../
-and
-.QW ..../
-for successively higher up parent directories, but later versions of
-Windows do not accept these forms.
+the local computer.
 .PP
 Since the backslash character has a special meaning to the glob
 command, glob patterns containing Windows style path separators need
diff --git a/doc/global.n b/doc/global.n
index c17c370..aa8f2e4 100644
--- a/doc/global.n
+++ b/doc/global.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH global n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/history.n b/doc/history.n
index ba507b4..e1f9781 100644
--- a/doc/history.n
+++ b/doc/history.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH history n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/http.n b/doc/http.n
index 631a141..cdf9c56 100644
--- a/doc/http.n
+++ b/doc/http.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH "http" n 2.7 http "Tcl Bundled Packages"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -210,7 +210,8 @@ proc httpHandlerCallback {socket token} {
 .TP
 \fB\-headers\fR \fIkeyvaluelist\fR
 .
-This option is used to add extra headers to the HTTP request.  The
+This option is used to add headers not already specified
+by \fB::http::config\fR to the HTTP request.  The
 \fIkeyvaluelist\fR argument must be a list with an even number of
 elements that alternate between keys and values.  The keys become
 header field names.  Newlines are stripped from the values so the
diff --git a/doc/if.n b/doc/if.n
index 700f325..776f811 100644
--- a/doc/if.n
+++ b/doc/if.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH if n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/incr.n b/doc/incr.n
index 595cc27..9052c5a 100644
--- a/doc/incr.n
+++ b/doc/incr.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH incr n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/info.n b/doc/info.n
index e65a083..1ad908d 100644
--- a/doc/info.n
+++ b/doc/info.n
@@ -8,8 +8,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH info n 8.4 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -296,7 +296,6 @@ Returns the name of the library directory in which standard Tcl
 scripts are stored.
 This is actually the value of the \fBtcl_library\fR
 variable and may be changed by setting \fBtcl_library\fR.
-See the \fBtclvars\fR manual entry for more information.
 .TP
 \fBinfo loaded \fR?\fIinterp\fR?
 .
@@ -336,8 +335,8 @@ described in \fBOBJECT INTROSPECTION\fR below.
 .TP
 \fBinfo patchlevel\fR
 .
-Returns the value of the global variable \fBtcl_patchLevel\fR; see
-the \fBtclvars\fR manual entry for more information.
+Returns the value of the global variable \fBtcl_patchLevel\fR, which holds
+the exact version of the Tcl library by default.
 .TP
 \fBinfo procs \fR?\fIpattern\fR?
 .
@@ -374,8 +373,8 @@ string is returned.
 .TP
 \fBinfo tclversion\fR
 .
-Returns the value of the global variable \fBtcl_version\fR; see
-the \fBtclvars\fR manual entry for more information.
+Returns the value of the global variable \fBtcl_version\fR, which holds the
+major and minor version of the Tcl library by default.
 .TP
 \fBinfo vars\fR ?\fIpattern\fR?
 .
@@ -763,8 +762,9 @@ proc getDef {obj method} {
 .VE 8.6
 .SH "SEE ALSO"
 .VS 8.6
-global(n), oo::class(n), oo::define(n), oo::object(n), proc(n), self(n)
+global(n), oo::class(n), oo::define(n), oo::object(n), proc(n), self(n),
 .VE 8.6
+tcl_library(n), tcl_patchLevel(n), tcl_version(n)
 .SH KEYWORDS
 command, information, interpreter, introspection, level, namespace,
 .VS 8.6
diff --git a/doc/interp.n b/doc/interp.n
index 6ce10ee..92113a6 100644
--- a/doc/interp.n
+++ b/doc/interp.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH interp n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/join.n b/doc/join.n
index 1b23667..c8179bb 100644
--- a/doc/join.n
+++ b/doc/join.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH join n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/lappend.n b/doc/lappend.n
index 9bfab72..a324ca3 100644
--- a/doc/lappend.n
+++ b/doc/lappend.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH lappend n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/lassign.n b/doc/lassign.n
index 6f5042b..e250729 100644
--- a/doc/lassign.n
+++ b/doc/lassign.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH lassign n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/library.n b/doc/library.n
index 2413692..775b7d9 100644
--- a/doc/library.n
+++ b/doc/library.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH library n "8.0" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 .SH NAME
 auto_execok, auto_import, auto_load, auto_mkindex, auto_qualify, auto_reset, tcl_findLibrary, parray, tcl_endOfWord, tcl_startOfNextWord, tcl_startOfPreviousWord, tcl_wordBreakAfter, tcl_wordBreakBefore \- standard library of Tcl procedures
@@ -262,13 +262,17 @@ If set to any value, then \fBunknown\fR will not attempt to auto-load
 any commands.
 .TP
 \fBauto_path\fR
+.
 If set, then it must contain a valid Tcl list giving directories to
-search during auto-load operations.
+search during auto-load operations (including for package index
+files when using the default \fBpackage unknown\fR handler).
 This variable is initialized during startup to contain, in order:
 the directories listed in the \fBTCLLIBPATH\fR environment variable,
-the directory named by the \fBtcl_library\fR variable,
+the directory named by the \fBtcl_library\fR global variable,
 the parent directory of \fBtcl_library\fR,
 the directories listed in the \fBtcl_pkgPath\fR variable.
+Additional locations to look for files and package indices should
+normally be added to this variable using \fBlappend\fR.
 .TP
 \fBenv(TCL_LIBRARY)\fR
 If set, then it specifies the location of the directory containing
@@ -306,7 +310,7 @@ considered to be a word character.  On Windows platforms, words are
 comprised of any character that is not a space, tab, or newline.  Under
 Unix, words are comprised of numbers, letters or underscores.
 .SH "SEE ALSO"
-info(n), re_syntax(n), tclvars(n)
+env(n), info(n), re_syntax(n)
 .SH KEYWORDS
 auto-exec, auto-load, library, unknown, word, whitespace 
 '\"Local Variables:
diff --git a/doc/lindex.n b/doc/lindex.n
index bb272a6..b42904b 100644
--- a/doc/lindex.n
+++ b/doc/lindex.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH lindex n 8.4 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/linsert.n b/doc/linsert.n
index c722e4f..51b64cf 100644
--- a/doc/linsert.n
+++ b/doc/linsert.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH linsert n 8.2 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/list.n b/doc/list.n
index 5705254..c2797f3 100644
--- a/doc/list.n
+++ b/doc/list.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH list n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/llength.n b/doc/llength.n
index b0ee4d9..d3f9610 100644
--- a/doc/llength.n
+++ b/doc/llength.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH llength n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/lmap.n b/doc/lmap.n
new file mode 100644
index 0000000..2038fc2
--- /dev/null
+++ b/doc/lmap.n
@@ -0,0 +1,85 @@
+'\"
+'\" Copyright (c) 2012 Trevor Davel
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\" 
+.TH lmap n "" Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+lmap \- Iterate over all elements in one or more lists and collect results
+.SH SYNOPSIS
+\fBlmap \fIvarname list body\fR
+.br
+\fBlmap \fIvarlist1 list1\fR ?\fIvarlist2 list2 ...\fR? \fIbody\fR
+.BE
+.SH DESCRIPTION
+.PP
+The \fBlmap\fR command implements a loop where the loop variable(s) take on
+values from one or more lists, and the loop returns a list of results
+collected from each iteration.
+.PP
+In the simplest case there is one loop variable, \fIvarname\fR, and one list,
+\fIlist\fR, that is a list of values to assign to \fIvarname\fR. The
+\fIbody\fR argument is a Tcl script. For each element of \fIlist\fR (in order
+from first to last), \fBlmap\fR assigns the contents of the element to
+\fIvarname\fR as if the \fBlindex\fR command had been used to extract the
+element, then calls the Tcl interpreter to execute \fIbody\fR. If execution of
+the body completes normally then the result of the body is appended to an
+accumulator list. \fBlmap\fR returns the accumulator list.
+.PP
+In the general case there can be more than one value list (e.g., \fIlist1\fR
+and \fIlist2\fR), and each value list can be associated with a list of loop
+variables (e.g., \fIvarlist1\fR and \fIvarlist2\fR). During each iteration of
+the loop the variables of each \fIvarlist\fR are assigned consecutive values
+from the corresponding \fIlist\fR. Values in each \fIlist\fR are used in order
+from first to last, and each value is used exactly once. The total number of
+loop iterations is large enough to use up all the values from all the value
+lists. If a value list does not contain enough elements for each of its loop
+variables in each iteration, empty values are used for the missing elements.
+.PP
+The \fBbreak\fR and \fBcontinue\fR statements may be invoked inside
+\fIbody\fR, with the same effect as in the \fBfor\fR and \fBforeach\fR
+commands. In these cases the body does not complete normally and the result is
+not appended to the accumulator list.
+.SH EXAMPLES
+.PP
+Zip lists together:
+.PP
+.CS
+set list1 {a b c d}
+set list2 {1 2 3 4}
+set zipped [\fBlmap\fR a $list1 b $list2 {list $a $b}] 
+# The value of zipped is "{a 1} {b 2} {c 3} {d 4}"
+.CE
+.PP
+Filter a list to remove odd values:
+.PP
+.CS
+set values {1 2 3 4 5 6 7 8}
+proc isEven {n} {expr {($n % 2) == 0}}
+set goodOnes [\fBlmap\fR x $values {expr {
+    [isEven $x] ? $x : [continue]
+}}]
+# The value of goodOnes is "2 4 6 8"
+.CE
+.PP
+Take a prefix from a list based on the contents of the list:
+.PP
+.CS
+set values {8 7 6 5 4 3 2 1}
+proc isGood {counter} {expr {$n > 3}}
+set prefix [\fBlmap\fR x $values {expr {
+    [isGood $x] ? $x : [break]
+}}]
+# The value of prefix is "8 7 6 5 4"
+.CE
+.SH "SEE ALSO"
+break(n), continue(n), for(n), foreach(n), while(n)
+.SH KEYWORDS
+foreach, iteration, list, loop, map
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/load.n b/doc/load.n
index c32cb65..2ab8f2e 100644
--- a/doc/load.n
+++ b/doc/load.n
@@ -4,18 +4,18 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH load n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
 load \- Load machine code and initialize new commands
 .SH SYNOPSIS
-\fBload \fIfileName\fR
+\fBload\fR ?\fB\-global\fR? ?\fB\-lazy\fR? ?\fB\-\-\fR? \fIfileName\fR
 .br
-\fBload \fIfileName packageName\fR
+\fBload\fR ?\fB\-global\fR? ?\fB\-lazy\fR? ?\fB\-\-\fR? \fIfileName packageName\fR
 .br
-\fBload \fIfileName packageName interp\fR
+\fBload\fR ?\fB\-global\fR? ?\fB\-lazy\fR? ?\fB\-\-\fR? \fIfileName packageName interp\fR
 .BE
 .SH DESCRIPTION
 .PP
@@ -104,6 +104,22 @@ Otherwise, the \fBload\fR command searches for a dynamically loaded
 package by that name, and uses it if it is found.  If several
 different files have been \fBload\fRed with different versions of
 the package, Tcl picks the file that was loaded first.
+.PP
+If \fB\-global\fR is specified preceding the filename, all symbols
+found in the shared library are exported for global use by other
+libraries. The option \fB\-lazy\fR delays the actual loading of
+symbols until their first actual use. The options may be abbreviated.
+The option \fB\-\-\fR indicates the end of the options, and should
+be used if you wish to use a filename which starts with \fB\-\fR
+and you provide a packageName to the \fBload\fR command.
+.PP
+On platforms which do not support the \fB\-global\fR or \fB\-lazy\fR
+options, the options still exist but have no effect. Note that use
+of the \fB\-global\fR or \fB\-lazy\fR option may lead to crashes
+in your application later (in case of symbol conflicts resp. missing
+symbols), which cannot be detected during the \fBload\fR. So, only
+use this when you know what you are doing, you will not get a nice
+error message when something is wrong with the loaded library.
 .SH "PORTABILITY ISSUES"
 .TP
 \fBWindows\fR\0\0\0\0\0
diff --git a/doc/lrange.n b/doc/lrange.n
index 4f4816a..4e26a0f 100644
--- a/doc/lrange.n
+++ b/doc/lrange.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH lrange n 7.4 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/lrepeat.n b/doc/lrepeat.n
index 59a1edf..466339d 100644
--- a/doc/lrepeat.n
+++ b/doc/lrepeat.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH lrepeat n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/lreplace.n b/doc/lreplace.n
index 6e6c3ea..7bba543 100644
--- a/doc/lreplace.n
+++ b/doc/lreplace.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH lreplace n 7.4 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/lreverse.n b/doc/lreverse.n
index f52db9b..51a9e57 100644
--- a/doc/lreverse.n
+++ b/doc/lreverse.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH lreverse n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/lsearch.n b/doc/lsearch.n
index 7835352..44ebce4 100644
--- a/doc/lsearch.n
+++ b/doc/lsearch.n
@@ -7,8 +7,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH lsearch n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/lset.n b/doc/lset.n
index 805de16..954bd30 100755
--- a/doc/lset.n
+++ b/doc/lset.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH lset n 8.4 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/lsort.n b/doc/lsort.n
index 312048e..48c62f0 100644
--- a/doc/lsort.n
+++ b/doc/lsort.n
@@ -7,8 +7,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH lsort n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/mathfunc.n b/doc/mathfunc.n
index 14b448e..84853d8 100644
--- a/doc/mathfunc.n
+++ b/doc/mathfunc.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH mathfunc n 8.5 Tcl "Tcl Mathematical Functions"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/mathop.n b/doc/mathop.n
index ac2ebc1..4c16d76 100644
--- a/doc/mathop.n
+++ b/doc/mathop.n
@@ -4,8 +4,8 @@
 .\" See the file "license.terms" for information on usage and redistribution
 .\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 .\"
-.so man.macros
 .TH mathop n 8.5 Tcl "Tcl Mathematical Operator Commands"
+.so man.macros
 .BS
 .\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/memory.n b/doc/memory.n
index f82c5b4..5a1524b 100644
--- a/doc/memory.n
+++ b/doc/memory.n
@@ -3,8 +3,8 @@
 '\" Copyright (c) 2000 by Scriptics Corporation.
 '\" All rights reserved.
 '\" 
-.so man.macros
 .TH memory n 8.1 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 .SH NAME
 memory \- Control Tcl memory debugging capabilities
diff --git a/doc/msgcat.n b/doc/msgcat.n
index af6be7f..bae6dbe 100644
--- a/doc/msgcat.n
+++ b/doc/msgcat.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
+.TH "msgcat" n 1.5 msgcat "Tcl Bundled Packages"
 .so man.macros
-.TH "msgcat" n 1.4 msgcat "Tcl Bundled Packages"
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -13,7 +13,7 @@ msgcat \- Tcl message catalog
 .SH SYNOPSIS
 \fBpackage require Tcl 8.5\fR
 .sp
-\fBpackage require msgcat 1.5.0\fR
+\fBpackage require msgcat 1.5\fR
 .sp
 \fB::msgcat::mc \fIsrc-string\fR ?\fIarg arg ...\fR?
 .sp
@@ -35,7 +35,7 @@ msgcat \- Tcl message catalog
 \fB::msgcat::mcflmset \fIsrc-trans-list\fR
 .VE "TIP 404"
 .sp
-\fB::msgcat::mcunknown \fIlocale src-string\fR
+\fB::msgcat::mcunknown \fIlocale src-string\fR ?\fIarg arg ...\fR?
 .BE
 .SH DESCRIPTION
 .PP
@@ -157,12 +157,13 @@ translate-string\fR ?\fIsrc-string translate-string ...\fR?}
 of \fB::msgcat::mcflset\fR. The function returns the number of translations set.
 .VE "TIP 404"
 .TP
-\fB::msgcat::mcunknown \fIlocale src-string\fR
+\fB::msgcat::mcunknown \fIlocale src-string\fR ?\fIarg arg ...\fR?
 .
 This routine is called by \fB::msgcat::mc\fR in the case when
 a translation for \fIsrc-string\fR is not defined in the
 current locale.  The default action is to return
-\fIsrc-string\fR.  This procedure can be redefined by the
+\fIsrc-string\fR passed by format if there are any arguments.  This
+procedure can be redefined by the
 application, for example to log error messages for each unknown
 string.  The \fB::msgcat::mcunknown\fR procedure is invoked at the
 same stack context as the call to \fB::msgcat::mc\fR.  The return value
diff --git a/doc/my.n b/doc/my.n
index b5afc67..b91bc9a0 100644
--- a/doc/my.n
+++ b/doc/my.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH my n 0.1 TclOO "TclOO Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/namespace.n b/doc/namespace.n
index b06d27a..1f4e85f 100644
--- a/doc/namespace.n
+++ b/doc/namespace.n
@@ -7,8 +7,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH namespace n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -287,7 +287,7 @@ This command is the complement of the \fBnamespace qualifiers\fR command.
 It does not check whether the namespace names are, in fact,
 the names of currently defined namespaces.
 .TP
-\fBnamespace upvar\fR \fInamespace\fR ?\fIotherVar myVar \fR...
+\fBnamespace upvar\fR \fInamespace\fR ?\fIotherVar myVar \fR...?
 .
 This command arranges for zero or more local variables in the current
 procedure to refer to variables in \fInamespace\fR. The namespace name is
diff --git a/doc/next.n b/doc/next.n
index d3f7937..1ea6eb9 100644
--- a/doc/next.n
+++ b/doc/next.n
@@ -4,12 +4,12 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH next n 0.1 TclOO "TclOO Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-next \- invoke superclass method implementations
+next, nextto \- invoke superclass method implementations
 .SH SYNOPSIS
 .nf
 package require TclOO
@@ -62,14 +62,14 @@ The method chain is cached for future use.
 When constructing the method chain, method implementations are searched for in
 the following order:
 .IP [1]
-In the object.
-.IP [2]
 In the classes mixed into the object, in class traversal order. The list of
 mixins is checked in natural order.
-.IP [3]
+.IP [2]
 In the classes mixed into the classes of the object, with sources of mixing in
 being searched in class traversal order. Within each class, the list of mixins
 is processed in natural order.
+.IP [3]
+In the object itself.
 .IP [4]
 In the object's class.
 .IP [5]
@@ -77,7 +77,10 @@ In the superclasses of the class, following each superclass in a depth-first
 fashion in the natural order of the superclass list.
 .PP
 Any particular method implementation always comes as \fIlate\fR in the
-resulting list of implementations as possible.
+resulting list of implementations as possible; this means that if some class,
+A, is both mixed into a class, B, and is also a superclass of B, the instances
+of B will always treat A as a superclass from the perspective of inheritance.
+This is true even when the multiple inheritance is processed indirectly.
 .SS FILTERS
 .PP
 When an object has a list of filter names set upon it, or is an instance of a
@@ -93,9 +96,11 @@ forward to the proper implementation of the method (which it does by invoking
 the \fBnext\fR command as filters are inserted into the front of the method
 call chain) and is responsible for returning the result of \fBnext\fR.
 .PP
-Filters are not invoked when processing an invocation of the \fBunknown\fR
-method because of a failure to locate a method implementation, or when
-invoking either constructors or destructors.
+Filters are invoked when processing an invokation of the \fBunknown\fR
+method because of a failure to locate a method implementation, but \fInot\fR
+when invoking either constructors or destructors. (Note however that the
+\fBdestroy\fR method is a conventional method, and filters are invoked as
+normal when it is called.)
 .SH EXAMPLES
 .PP
 This example demonstrates how to use the \fBnext\fR command to call the
diff --git a/doc/object.n b/doc/object.n
index 6737e7e..df657a9 100644
--- a/doc/object.n
+++ b/doc/object.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH object n 0.1 TclOO "TclOO Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/open.n b/doc/open.n
index d4842f2..3012460 100644
--- a/doc/open.n
+++ b/doc/open.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH open n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -361,63 +361,28 @@ may cause this error.
 A BREAK condition has been detected by your UART (see above).
 .SH "PORTABILITY ISSUES"
 .TP
-\fBWindows \fR(all versions)
+\fBWindows \fR
 .
 Valid values for \fIfileName\fR to open a serial port are of the form
-\fBcom\fIX\fB:\fR, where \fIX\fR is a number, generally from 1 to 4.
-This notation only works for serial ports from 1 to 9, if the system
-happens to have more than four.  An attempt to open a serial port that
+\fBcom\fIX\fB\fR, where \fIX\fR is a number, generally from 1 to 9.
+A legacy form accepted as well is \fBcom\fIX\fB:\fR. This notation only
+works for serial ports from 1 to 9.  An attempt to open a serial port that
 does not exist or has a number greater than 9 will fail.  An alternate
-form of opening serial ports is to use the filename \fB\e\e.\ecomX\fR,
-where X is any number that corresponds to a serial port; please note
-that this method is considerably slower on Windows 95 and Windows 98.
-.TP
-\fBWindows NT\fR
-.
+form of opening serial ports is to use the filename \fB//./comX\fR,
+where X is any number that corresponds to a serial port.
+.PP
+.RS
 When running Tcl interactively, there may be some strange interactions
 between the real console, if one is present, and a command pipeline that uses
 standard input or output.  If a command pipeline is opened for reading, some
 of the lines entered at the console will be sent to the command pipeline and
 some will be sent to the Tcl evaluator.  If a command pipeline is opened for
 writing, keystrokes entered into the console are not visible until the
-pipe is closed.  This behavior occurs whether the command pipeline is
-executing 16-bit or 32-bit applications.  These problems only occur because
-both Tcl and the child application are competing for the console at
-the same time.  If the command pipeline is started from a script, so that Tcl
-is not accessing the console, or if the command pipeline does not use
-standard input or output, but is redirected from or to a file, then the
-above problems do not occur.  
-.TP
-\fBWindows 95\fR 
-.
-A command pipeline that executes a 16-bit DOS application cannot be opened
-for both reading and writing, since 16-bit DOS applications that receive
-standard input from a pipe and send standard output to a pipe run
-synchronously.  Command pipelines that do not execute 16-bit DOS
-applications run asynchronously and can be opened for both reading and
-writing.  
-.RS
-.PP
-When running Tcl interactively, there may be some strange interactions
-between the real console, if one is present, and a command pipeline that uses
-standard input or output.  If a command pipeline is opened for reading from
-a 32-bit application, some of the keystrokes entered at the console will be
-sent to the command pipeline and some will be sent to the Tcl evaluator.  If
-a command pipeline is opened for writing to a 32-bit application, no output
-is visible on the console until the pipe is closed.  These problems only
-occur because both Tcl and the child application are competing for the
-console at the same time.  If the command pipeline is started from a script,
-so that Tcl is not accessing the console, or if the command pipeline does
-not use standard input or output, but is redirected from or to a file, then
-the above problems do not occur.  
-.PP
-Whether or not Tcl is running interactively, if a command pipeline is opened
-for reading from a 16-bit DOS application, the call to \fBopen\fR will not
-return until end-of-file has been received from the command pipeline's
-standard output.  If a command pipeline is opened for writing to a 16-bit DOS
-application, no data will be sent to the command pipeline's standard output
-until the pipe is actually closed.  This problem occurs because 16-bit DOS
-applications are run synchronously, as described above.  
+pipe is closed.  These problems only occur because both Tcl and the child
+application are competing for the console at the same time.  If the command
+pipeline is started from a script, so that Tcl is not accessing the console,
+or if the command pipeline does not use standard input or output, but is
+redirected from or to a file, then the above problems do not occur.  
 .RE
 .TP
 \fBUnix\fR\0\0\0\0\0\0\0
diff --git a/doc/package.n b/doc/package.n
index 6cf8991..07a3d47 100644
--- a/doc/package.n
+++ b/doc/package.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH package n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/packagens.n b/doc/packagens.n
index 30617a3..61e7eca 100644
--- a/doc/packagens.n
+++ b/doc/packagens.n
@@ -2,8 +2,8 @@
 '\" Copyright (c) 1998-2000 by Scriptics Corporation.
 '\" All rights reserved.
 '\" 
-.so man.macros
 .TH pkg::create n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/pid.n b/doc/pid.n
index 97a42a7..a4df2f3 100644
--- a/doc/pid.n
+++ b/doc/pid.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH pid n 7.0 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/pkgMkIndex.n b/doc/pkgMkIndex.n
index 2753208..c2f23ed 100644
--- a/doc/pkgMkIndex.n
+++ b/doc/pkgMkIndex.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH pkg_mkIndex n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/platform.n b/doc/platform.n
index 1553698..6abc289 100644
--- a/doc/platform.n
+++ b/doc/platform.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH "platform" n 1.0.4 platform "Tcl Bundled Packages"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/platform_shell.n b/doc/platform_shell.n
index eef4d4e..64a2e46 100644
--- a/doc/platform_shell.n
+++ b/doc/platform_shell.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH "platform::shell" n 1.1.4 platform::shell "Tcl Bundled Packages"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/prefix.n b/doc/prefix.n
index eb79996..344ade7 100644
--- a/doc/prefix.n
+++ b/doc/prefix.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH prefix n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/proc.n b/doc/proc.n
index 570a37d..632485e 100644
--- a/doc/proc.n
+++ b/doc/proc.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH proc n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/puts.n b/doc/puts.n
index 4a53d44..01ca122 100644
--- a/doc/puts.n
+++ b/doc/puts.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH puts n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/pwd.n b/doc/pwd.n
index 65fed84..31d378f 100644
--- a/doc/pwd.n
+++ b/doc/pwd.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH pwd n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/re_syntax.n b/doc/re_syntax.n
index 46a180d..7988071 100644
--- a/doc/re_syntax.n
+++ b/doc/re_syntax.n
@@ -683,9 +683,33 @@ earlier in the RE taking priority over ones starting later. Note that
 outer subexpressions thus take priority over their component
 subexpressions.
 .PP
-Note that the quantifiers \fB{1,1}\fR and \fB{1,1}?\fR can be used to
+The quantifiers \fB{1,1}\fR and \fB{1,1}?\fR can be used to
 force longest and shortest preference, respectively, on a
 subexpression or a whole RE.
+.RS
+.PP
+\fBNOTE:\fR This means that you can usually make a RE be non-greedy overall by
+putting \fB{1,1}?\fR after one of the first non-constraint atoms or
+parenthesized sub-expressions in it. \fIIt pays to experiment\fR with the
+placing of this non-greediness override on a suitable range of input texts
+when you are writing a RE if you are using this level of complexity.
+.PP
+For example, this regular expression is non-greedy, and will match the
+shortest substring possible given that
+.QW \fBabc\fR
+will be matched as early as possible (the quantifier does not change that):
+.PP
+.CS
+ab{1,1}?c.*x.*cba
+.CE
+.PP
+The atom
+.QW \fBa\fR
+has no greediness preference, we explicitly give one for
+.QW \fBb\fR ,
+and the remaining quantifiers are overridden to be non-greedy by the preceding
+non-greedy quantifier.
+.RE
 .PP
 Match lengths are measured in characters, not collating elements. An
 empty string is considered longer than no match at all. For example,
diff --git a/doc/read.n b/doc/read.n
index 007c0ac..87aa897 100644
--- a/doc/read.n
+++ b/doc/read.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH read n 8.1 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/refchan.n b/doc/refchan.n
index a51c3d7..2232d50 100644
--- a/doc/refchan.n
+++ b/doc/refchan.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH refchan n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 .\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/regexp.n b/doc/regexp.n
index 5e857f8..17bf564 100644
--- a/doc/regexp.n
+++ b/doc/regexp.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH regexp n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/registry.n b/doc/registry.n
index 2e69b1e..001def9 100644
--- a/doc/registry.n
+++ b/doc/registry.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH registry n 1.1 registry "Tcl Bundled Packages"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/regsub.n b/doc/regsub.n
index fe473d9..ef4c289 100644
--- a/doc/regsub.n
+++ b/doc/regsub.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH regsub n 8.3 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/rename.n b/doc/rename.n
index 77dc095..744bf5a 100644
--- a/doc/rename.n
+++ b/doc/rename.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH rename n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/return.n b/doc/return.n
index b59a93d..383ed8c 100644
--- a/doc/return.n
+++ b/doc/return.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH return n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -317,8 +317,8 @@ proc myReturn {args} {
 }
 .CE
 .SH "SEE ALSO"
-break(n), catch(n), continue(n), dict(n), error(n), proc(n),
-source(n), tclvars(n), throw(n), try(n)
+break(n), catch(n), continue(n), dict(n), error(n), errorCode(n),
+errorInfo(n), proc(n), source(n), throw(n), try(n)
 .SH KEYWORDS
 break, catch, continue, error, exception, procedure, result, return
 .\" Local Variables:
diff --git a/doc/safe.n b/doc/safe.n
index ebd9b4d..76184a5 100644
--- a/doc/safe.n
+++ b/doc/safe.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH "Safe Tcl" n 8.0 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/scan.n b/doc/scan.n
index cc5ed79..5b91449 100644
--- a/doc/scan.n
+++ b/doc/scan.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH scan n 8.4 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -99,7 +99,7 @@ The input substring must be an octal integer. It is read in and the
 integer value is stored in the variable,
 truncated as required by the size modifier value.
 .TP
-\fBx\fR
+\fBx\fR or \fBX\fR
 .
 The input substring must be a hexadecimal integer.
 It is read in and the integer value is stored in the variable,
@@ -140,7 +140,7 @@ substring may be a white-space character.
 The input substring consists of all the characters up to the next 
 white-space character; the characters are copied to the variable.
 .TP
-\fBe\fR or \fBf\fR or \fBg\fR
+\fBe\fR or \fBf\fR or \fBg\fR or \fBE\fR or \fBG\fR
 .
 The input substring must be a floating-point number consisting 
 of an optional sign, a string of decimal digits possibly
diff --git a/doc/seek.n b/doc/seek.n
index 96d5c4e..02c5341 100644
--- a/doc/seek.n
+++ b/doc/seek.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH seek n 8.1 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/self.n b/doc/self.n
index 2a04157..0ad5428 100644
--- a/doc/self.n
+++ b/doc/self.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH self n 0.1 TclOO "TclOO Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/set.n b/doc/set.n
index 32a788e..545b15f 100644
--- a/doc/set.n
+++ b/doc/set.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH set n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/socket.n b/doc/socket.n
index 0a60457..275771d 100644
--- a/doc/socket.n
+++ b/doc/socket.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH socket n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -97,6 +97,10 @@ writable channel event on the socket to get notified when the
 asynchronous connection has succeeded or failed. See the \fBvwait\fR
 and the \fBchan\fR commands for more details on the event loop and
 channel events.
+.PP
+The \fBchan configure\fR option \fB-connecting\fR may be used to check if the connect is still running. To verify a successful connect, the option \fB-error\fR may be checked when \fB-connecting\fR returned 0. 
+.PP
+Operation without the event queue requires at the moment calls to \fBchan configure\fR to advance the internal state machine. 
 .RE
 .SH "SERVER SOCKETS"
 .PP
@@ -186,6 +190,10 @@ sockets, this option returns a list of three elements; these are the
 address, the host name and the port to which the peer socket is connected
 or bound. If the host name cannot be computed, the second element of the
 list is identical to the address, its first element.
+.TP
+\fB\-connecting\fR
+.
+This option is not supported by server sockets. For client sockets, this option returns 1 if an asyncroneous connect is still in progress, 0 otherwise.
 .PP
 .SH "EXAMPLES"
 .PP
diff --git a/doc/source.n b/doc/source.n
index 57a9fa2..9f488c5 100644
--- a/doc/source.n
+++ b/doc/source.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH source n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/split.n b/doc/split.n
index e3259df..f1c66d0 100644
--- a/doc/split.n
+++ b/doc/split.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH split n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/string.n b/doc/string.n
index 1cbea16..33780ff 100644
--- a/doc/string.n
+++ b/doc/string.n
@@ -5,8 +5,8 @@
 .\" See the file "license.terms" for information on usage and redistribution
 .\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 .\" 
-.so man.macros
 .TH string n 8.1 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 .\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -19,25 +19,22 @@ string \- Manipulate strings
 Performs one of several string operations, depending on \fIoption\fR.
 The legal \fIoption\fRs (which may be abbreviated) are:
 .TP
-\fBstring bytelength \fIstring\fR
-.
-Returns a decimal string giving the number of bytes used to represent
-\fIstring\fR in memory.  Because UTF\-8 uses one to three bytes to
-represent Unicode characters, the byte length will not be the same as
-the character length in general.  The cases where a script cares about
-the byte length are rare.  In almost all cases, you should use the
-\fBstring length\fR operation (including determining the length of a
-Tcl ByteArray object).  Refer to the \fBTcl_NumUtfChars\fR manual
-entry for more details on the UTF\-8 representation.
+\fBstring cat\fR ?\fIstring1\fR? ?\fIstring2...\fR?
+.VS 8.6.2
+Concatenate the given \fIstring\fRs just like placing them directly
+next to each other and return the resulting compound string.  If no
+\fIstring\fRs are present, the result is an empty string.
 .RS
 .PP
-\fICompatibility note:\fR it is likely that this subcommand will be
-withdrawn in a future version of Tcl. It is better to use the
-\fBencoding convertto\fR command to convert a string to a known
-encoding and then apply \fBstring length\fR to that.
+This primitive is occasionally handier than juxtaposition of strings
+when mixed quoting is wanted, or when the aim is to return the result
+of a concatenation without resorting to \fBreturn\fR \fB\-level 0\fR,
+and is more efficient than building a list of arguments and using
+\fBjoin\fR with an empty join string.
 .RE
+.VE
 .TP
-\fBstring compare\fR ?\fB\-nocase\fR? ?\fB\-length int\fR? \fIstring1 string2\fR
+\fBstring compare\fR ?\fB\-nocase\fR? ?\fB\-length\fI length\fR? \fIstring1 string2\fR
 .
 Perform a character-by-character comparison of strings \fIstring1\fR
 and \fIstring2\fR.  Returns \-1, 0, or 1, depending on whether
@@ -47,7 +44,7 @@ first \fIlength\fR characters are used in the comparison.  If
 \fB\-length\fR is negative, it is ignored.  If \fB\-nocase\fR is
 specified, then the strings are compared in a case-insensitive manner.
 .TP
-\fBstring equal\fR ?\fB\-nocase\fR? ?\fB\-length int\fR? \fIstring1 string2\fR
+\fBstring equal\fR ?\fB\-nocase\fR? ?\fB\-length\fI length\fR? \fIstring1 string2\fR
 .
 Perform a character-by-character comparison of strings \fIstring1\fR
 and \fIstring2\fR.  Returns 1 if \fIstring1\fR and \fIstring2\fR are
@@ -149,7 +146,9 @@ Any Unicode printing character, including space.
 .IP \fBpunct\fR 12
 Any Unicode punctuation character.
 .IP \fBspace\fR 12
-Any Unicode space character.
+Any Unicode whitespace character, mongolian vowel separator
+(U+180e), zero width space (U+200b), word joiner (U+2060) or
+zero width no-break space (U+feff) (=BOM).
 .IP \fBtrue\fR 12
 Any of the forms allowed to \fBTcl_GetBoolean\fR where the value is
 true.
@@ -198,9 +197,9 @@ will return \fB1\fR.
 .
 Returns a decimal string giving the number of characters in
 \fIstring\fR.  Note that this is not necessarily the same as the
-number of bytes used to store the string.  If the object is a
-ByteArray object (such as those returned from reading a binary encoded
-channel), then this will return the actual byte length of the object.
+number of bytes used to store the string.  If the value is a
+byte array value (such as those returned from reading a binary encoded
+channel), then this will return the actual byte length of the value.
 .TP
 \fBstring map\fR ?\fB\-nocase\fR? \fImapping string\fR
 .
@@ -335,22 +334,67 @@ specified using the forms described in \fBSTRING INDICES\fR.
 .
 Returns a value equal to \fIstring\fR except that any leading or
 trailing characters present in the string given by \fIchars\fR are removed.  If
-\fIchars\fR is not specified then white space is removed (spaces,
-tabs, newlines, and carriage returns).
+\fIchars\fR is not specified then white space is removed (any character
+for which \fBstring is space\fR returns 1, and "\0").
 .TP
 \fBstring trimleft \fIstring\fR ?\fIchars\fR?
 .
 Returns a value equal to \fIstring\fR except that any leading
 characters present in the string given by \fIchars\fR are removed.  If
-\fIchars\fR is not specified then white space is removed (spaces,
-tabs, newlines, and carriage returns).
+\fIchars\fR is not specified then white space is removed (any character
+for which \fBstring is space\fR returns 1, and "\0").
 .TP
 \fBstring trimright \fIstring\fR ?\fIchars\fR?
 .
 Returns a value equal to \fIstring\fR except that any trailing
 characters present in the string given by \fIchars\fR are removed.  If
-\fIchars\fR is not specified then white space is removed (spaces,
-tabs, newlines, and carriage returns).
+\fIchars\fR is not specified then white space is removed (any character
+for which \fBstring is space\fR returns 1, and "\0").
+.SS "OBSOLETE SUBCOMMANDS"
+.PP
+These subcommands are currently supported, but are likely to go away in a
+future release as their functionality is either virtually never used or highly
+misleading.
+.TP
+\fBstring bytelength \fIstring\fR
+.
+Returns a decimal string giving the number of bytes used to represent
+\fIstring\fR in memory when encoded as Tcl's internal modified UTF\-8;
+Tcl may use other encodings for \fIstring\fR as well, and does not
+guarantee to only use a single encoding for a particular \fIstring\fR.
+Because UTF\-8 uses a variable number of bytes to represent Unicode
+characters, the byte length will not be the same as the character
+length in general.  The cases where a script cares about the byte
+length are rare.
+.RS
+.PP
+In almost all cases, you should use the
+\fBstring length\fR operation (including determining the length of a
+Tcl byte array value).  Refer to the \fBTcl_NumUtfChars\fR manual
+entry for more details on the UTF\-8 representation.
+.PP
+Formally, the \fBstring bytelength\fR operation returns the content of
+the \fIlength\fR field of the \fBTcl_Obj\fR structure, after calling
+\fBTcl_GetString\fR to ensure that the \fIbytes\fR field is populated.
+This is highly unlikely to be useful to Tcl scripts, as Tcl's internal
+encoding is not strict UTF\-8, but rather a modified CESU\-8 with a
+denormalized NUL (identical to that used in a number of places by
+Java's serialization mechanism) to enable basic processing with
+non-Unicode-aware C functions.  As this representation should only
+ever be used by Tcl's implementation, the number of bytes used to
+store the representation is of very low value (except to C extension
+code, which has direct access for the purpose of memory management,
+etc.)
+.PP
+\fICompatibility note:\fR it is likely that this subcommand will be
+withdrawn in a future version of Tcl. It is better to use the
+\fBencoding convertto\fR command to convert a string to a known
+encoding and then apply \fBstring length\fR to that.
+.PP
+.CS
+\fBstring length\fR [encoding convertto utf-8 $theString]
+.CE
+.RE
 .TP
 \fBstring wordend \fIstring charIndex\fR
 .
diff --git a/doc/subst.n b/doc/subst.n
index aba2bc9..990b9d3 100644
--- a/doc/subst.n
+++ b/doc/subst.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH subst n 7.4 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/switch.n b/doc/switch.n
index acde6cb..6e27f56 100644
--- a/doc/switch.n
+++ b/doc/switch.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH switch n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/tailcall.n b/doc/tailcall.n
index 6a88aca..926c608 100644
--- a/doc/tailcall.n
+++ b/doc/tailcall.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH tailcall n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/tclsh.1 b/doc/tclsh.1
index 2819408..6ed5eb6 100644
--- a/doc/tclsh.1
+++ b/doc/tclsh.1
@@ -5,14 +5,14 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH tclsh 1 "" Tcl "Tcl Applications"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
 tclsh \- Simple shell containing Tcl interpreter
 .SH SYNOPSIS
-\fBtclsh\fR ?-encoding \fIname\fR? ?\fIfileName arg arg ...\fR?
+\fBtclsh\fR ?\fB\-encoding \fIname\fR? ?\fIfileName arg arg ...\fR?
 .BE
 .SH DESCRIPTION
 .PP
@@ -102,7 +102,9 @@ but also the disadvantage of making it harder to write scripts that
 start up uniformly across different versions of Tcl.
 .SH "VARIABLES"
 .PP
-\fBTclsh\fR sets the following Tcl variables:
+\fBTclsh\fR sets the following global Tcl variables in addition to those
+created by the Tcl library itself (such as \fBenv\fR, which maps
+environment variables such as \fBPATH\fR into Tcl):
 .TP 15
 \fBargc\fR
 .
@@ -129,7 +131,7 @@ device), 0 otherwise.
 When \fBtclsh\fR is invoked interactively it normally prompts for each
 command with
 .QW "\fB% \fR" .
-You can change the prompt by setting the
+You can change the prompt by setting the global
 variables \fBtcl_prompt1\fR and \fBtcl_prompt2\fR.  If variable
 \fBtcl_prompt1\fR exists then it must consist of a Tcl script
 to output a prompt;  instead of outputting a prompt \fBtclsh\fR
@@ -142,6 +144,6 @@ incomplete commands.
 .PP
 See \fBTcl_StandardChannels\fR for more explanations.
 .SH "SEE ALSO"
-encoding(n), fconfigure(n), tclvars(n)
+auto_path(n), encoding(n), env(n), fconfigure(n)
 .SH KEYWORDS
 application, argument, interpreter, prompt, script file, shell
diff --git a/doc/tcltest.n b/doc/tcltest.n
index 731bed7..29265be 100644
--- a/doc/tcltest.n
+++ b/doc/tcltest.n
@@ -8,8 +8,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH "tcltest" n 2.3 tcltest "Tcl Bundled Packages"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -642,14 +642,6 @@ This test can only be run on any Windows platform.
 .
 This test can only be run on any Windows NT platform.
 .TP
-\fI95\fR
-.
-This test can only be run on any Windows 95 platform.
-.TP
-\fI98\fR
-.
-This test can only be run on any Windows 98 platform.
-.TP
 \fImac\fR
 .
 This test can only be run on any Mac platform.
diff --git a/doc/tclvars.n b/doc/tclvars.n
index 44a8e11..a8fba47 100644
--- a/doc/tclvars.n
+++ b/doc/tclvars.n
@@ -5,12 +5,12 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH tclvars n 8.0 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-argc, argv, argv0, auto_path, env, errorCode, errorInfo, tcl_interactive, tcl_library, tcl_nonwordchars, tcl_patchLevel, tcl_pkgPath, tcl_platform, tcl_precision, tcl_rcFileName, tcl_traceCompile, tcl_traceEval, tcl_wordchars, tcl_version \- Variables used by Tcl
+argc, argv, argv0, auto_path, env, errorCode, errorInfo, tcl_interactive, tcl_library, tcl_nonwordchars, tcl_patchLevel, tcl_pkgPath, tcl_platform, tcl_precision, tcl_rcFileName, tcl_traceCompile, tcl_traceExec, tcl_wordchars, tcl_version \- Variables used by Tcl
 .BE
 .SH DESCRIPTION
 .PP
@@ -308,18 +308,13 @@ is the value returned by \fBuname -m\fR.
 \fBos\fR
 .
 The name of the operating system running on this machine,
-such as \fBWindows 95\fR, \fBWindows NT\fR, or \fBSunOS\fR.
+such as \fBWindows NT\fR or \fBSunOS\fR.
 On UNIX machines, this is the value returned by \fBuname -s\fR.
-On Windows 95 and Windows 98, the value returned will be \fBWindows
-95\fR to provide better backwards compatibility to Windows 95; to
-distinguish between the two, check the \fBosVersion\fR.
 .TP
 \fBosVersion\fR
 .
 The version number for the operating system running on this machine.
-On UNIX machines, this is the value returned by \fBuname -r\fR.  On
-Windows 95, the version will be 4.0; on Windows 98, the version will
-be 4.10.
+On UNIX machines, this is the value returned by \fBuname -r\fR.
 .TP
 \fBpathSeparator\fR
 .VS 8.6
@@ -347,8 +342,8 @@ was compiled with threads enabled.
 .
 This identifies the
 current user based on the login information available on the platform.
-This comes from the USER or LOGNAME environment variable on Unix,
-and the value from GetUserName on Windows.
+This value comes from the getuid() and getpwuid() system calls on Unix,
+and the value from the GetUserName() system call on Windows.
 .TP
 \fBwordSize\fR
 .
diff --git a/doc/tell.n b/doc/tell.n
index 87e63b0..e8bf3af 100644
--- a/doc/tell.n
+++ b/doc/tell.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH tell n 8.1 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/throw.n b/doc/throw.n
index d49fb24..0d1df78 100644
--- a/doc/throw.n
+++ b/doc/throw.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH throw n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -40,7 +40,7 @@ The following produces an error that is identical to that produced by
 \fBthrow\fR {ARITH DIVZERO {divide by zero}} {divide by zero}
 .CE
 .SH "SEE ALSO"
-catch(n), error(n), return(n), tclvars(n), try(n)
+catch(n), error(n), errorCode(n), errorInfo(n), return(n), try(n)
 .SH "KEYWORDS"
 error, exception
 '\" Local Variables:
diff --git a/doc/time.n b/doc/time.n
index 52730a1..35b41c4 100644
--- a/doc/time.n
+++ b/doc/time.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH time n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/tm.n b/doc/tm.n
index ddfbac2..5602686 100644
--- a/doc/tm.n
+++ b/doc/tm.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH tm n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/trace.n b/doc/trace.n
index 63ed1cb..4ae7e19 100644
--- a/doc/trace.n
+++ b/doc/trace.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH trace n "8.4" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/transchan.n b/doc/transchan.n
index e308e13..e00aa84 100644
--- a/doc/transchan.n
+++ b/doc/transchan.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.so man.macros
 .TH transchan n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/try.n b/doc/try.n
index 393fe5b..834ccc1 100644
--- a/doc/try.n
+++ b/doc/try.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH try n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -87,7 +87,7 @@ Handle different reasons for a file to not be openable for reading:
 .PP
 .CS
 \fBtry\fR {
-    set f [open /some/file/name]
+    set f [open /some/file/name w]
 } \fBtrap\fR {POSIX EISDIR} {} {
     puts "failed to open /some/file/name: it's a directory"
 } \fBtrap\fR {POSIX ENOENT} {} {
diff --git a/doc/unknown.n b/doc/unknown.n
index fc2a5a1..cdfbe43 100644
--- a/doc/unknown.n
+++ b/doc/unknown.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH unknown n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/unload.n b/doc/unload.n
index 4c0b292..febd694 100644
--- a/doc/unload.n
+++ b/doc/unload.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH unload n 8.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/unset.n b/doc/unset.n
index 64b334d..8b63959 100644
--- a/doc/unset.n
+++ b/doc/unset.n
@@ -6,8 +6,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH unset n 8.4 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/update.n b/doc/update.n
index 0c77c5f..875172a 100644
--- a/doc/update.n
+++ b/doc/update.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH update n 7.5 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/uplevel.n b/doc/uplevel.n
index 6c8a957..a96f729 100644
--- a/doc/uplevel.n
+++ b/doc/uplevel.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH uplevel n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/upvar.n b/doc/upvar.n
index 60e5324..380a390 100644
--- a/doc/upvar.n
+++ b/doc/upvar.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH upvar n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/variable.n b/doc/variable.n
index 96263b6..7d58a02 100644
--- a/doc/variable.n
+++ b/doc/variable.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH variable n 8.0 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/vwait.n b/doc/vwait.n
index 38a8081..c9b51ab 100644
--- a/doc/vwait.n
+++ b/doc/vwait.n
@@ -4,8 +4,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH vwait n 8.0 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/while.n b/doc/while.n
index 5416e25..60275e8 100644
--- a/doc/while.n
+++ b/doc/while.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH while n "" Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
diff --git a/doc/zlib.n b/doc/zlib.n
index a4ff7f8..b8d0ee5 100644
--- a/doc/zlib.n
+++ b/doc/zlib.n
@@ -1,11 +1,11 @@
 '\"
-'\" Copyright (c) 2008 Donal K. Fellows
+'\" Copyright (c) 2008-2012 Donal K. Fellows
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-.so man.macros
 .TH zlib n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
@@ -170,6 +170,13 @@ the
 .QW "\fIoptions ...\fR"
 to the \fBzlib push\fR command:
 .TP
+\fB\-dictionary\fI binData\fR
+.VS "TIP 400"
+Sets the compression dictionary to use when working with compressing or
+decompressing the data to be \fIbinData\fR. Not valid for transformations that
+work with gzip-format data.
+.VE
+.TP
 \fB\-header\fI dictionary\fR
 .
 Passes a description of the gzip header to create, in the same format that
@@ -179,15 +186,33 @@ Passes a description of the gzip header to create, in the same format that
 .
 How hard to compress the data. Must be an integer from 0 (uncompressed) to 9
 (maximally compressed).
-'\".TP
-'\"\fB\-limit\fI readaheadLimit\fR
-'\".
-'\"The maximum number of bytes ahead to read.
-'\"\fITODO: not yet implemented!\fR
+.TP
+\fB\-limit\fI readaheadLimit\fR
+.
+The maximum number of bytes ahead to read when decompressing. This defaults to
+1, which ensures that data is always decompressed correctly, but may be
+increased to improve performance. This is more useful when the channel is
+non-blocking.
 .PP
 Both compressing and decompressing channel transformations add extra
-configuration options that may be accessed through \fBchan configure\fR. Each
-option is either a read-only or a write-only option. The options are:
+configuration options that may be accessed through \fBchan configure\fR. The
+options are:
+.TP
+\fB\-checksum\fI checksum\fR
+.
+This read-only option gets the current checksum for the uncompressed data that
+the compression engine has seen so far. It is valid for both compressing and
+decompressing transforms, but not for the raw inflate and deflate formats. The
+compression algorithm depends on what format is being produced or consumed.
+.TP
+\fB\-dictionary\fI binData\fR
+.VS "TIP 400"
+This read-write options gets or sets the compression dictionary to use when
+working with compressing or decompressing the data to be \fIbinData\fR. It is
+not valid for transformations that work with gzip-format data, and should not
+normally be set on compressing transformations other than at the point where
+the transformation is stacked.
+.VE
 .TP
 \fB\-flush\fI type\fR
 .
@@ -198,63 +223,80 @@ expensive flush respectively. Flushing degrades the compression ratio, but
 makes it easier for a decompressor to recover more of the file in the case of
 data corruption.
 .TP
-\fB\-checksum\fR
-.
-This read-only option gets the current checksum for the uncompressed data
-that the compression engine has seen so far. It is valid for both
-compressing and decompressing transforms, but not for the raw inflate
-and deflate formats. The compression algorithm depends on what
-format is being produced or consumed.
-.TP
-\fB\-header\fR
+\fB\-header\fI dictionary\fR
 .
 This read-only option, only valid for decompressing transforms that are
 processing gzip-format data, returns the dictionary describing the header read
 off the data stream.
+.TP
+\fB\-limit\fI readaheadLimit\fR
+.
+This read-write option is used by decompressing channels to control the
+maximum number of bytes ahead to read from the underlying data source. This
+defaults to 1, which ensures that data is always decompressed correctly, but
+may be increased to improve performance. This is more useful when the channel
+is non-blocking.
 .RE
 .SS "STREAMING SUBCOMMAND"
 .TP
-\fBzlib stream\fI mode\fR ?\fIlevel\fR?
+\fBzlib stream\fI mode\fR ?\fIoptions\fR?
 .
 Creates a streaming compression or decompression command based on the
 \fImode\fR, and return the name of the command. For a description of how that
 command works, see \fBSTREAMING INSTANCE COMMAND\fR below. The following modes
-are supported:
+and \fIoptions\fR are supported:
 .RS
 .TP
-\fBzlib stream compress\fR ?\fIlevel\fR?
+\fBzlib stream compress\fR ?\fB\-dictionary \fIbindata\fR? ?\fB\-level \fIlevel\fR?
 .
 The stream will be a compressing stream that produces zlib-format output,
 using compression level \fIlevel\fR (if specified) which will be an integer
-from 0 to 9.
+from 0 to 9,
+.VS "TIP 400"
+and the compression dictionary \fIbindata\fR (if specified).
+.VE
 .TP
-\fBzlib stream decompress\fR
+\fBzlib stream decompress\fR ?\fB\-dictionary \fIbindata\fR?
 .
 The stream will be a decompressing stream that takes zlib-format input and
 produces uncompressed output.
+.VS "TIP 400"
+If \fIbindata\fR is supplied, it is a compression dictionary to use if
+required.
+.VE
 .TP
-\fBzlib stream deflate\fR ?\fIlevel\fR?
+\fBzlib stream deflate\fR ?\fB\-dictionary \fIbindata\fR? ?\fB\-level \fIlevel\fR?
 .
 The stream will be a compressing stream that produces raw output, using
 compression level \fIlevel\fR (if specified) which will be an integer from 0
-to 9.
+to 9,
+.VS "TIP 400"
+and the compression dictionary \fIbindata\fR (if specified). Note that
+the raw compressed data includes no metadata about what compression
+dictionary was used, if any; that is a feature of the zlib-format data.
+.VE
 .TP
 \fBzlib stream gunzip\fR
 .
 The stream will be a decompressing stream that takes gzip-format input and
 produces uncompressed output.
 .TP
-\fBzlib stream gzip\fR ?\fIlevel\fR?
+\fBzlib stream gzip\fR ?\fB\-header \fIheader\fR? ?\fB\-level \fIlevel\fR?
 .
 The stream will be a compressing stream that produces gzip-format output,
 using compression level \fIlevel\fR (if specified) which will be an integer
-from 0 to 9.
-'\" TODO: Header dictionary!
+from 0 to 9, and the header descriptor dictionary \fIheader\fR (if specified;
+for keys see \fBzlib gzip\fR).
 .TP
-\fBzlib stream inflate\fR
+\fBzlib stream inflate\fR ?\fB\-dictionary \fIbindata\fR?
 .
 The stream will be a decompressing stream that takes raw compressed input and
 produces uncompressed output.
+.VS "TIP 400"
+If \fIbindata\fR is supplied, it is a compression dictionary to use. Note that
+there are no checks in place to determine whether the compression dictionary
+is correct.
+.VE
 .RE
 .SS "CHECKSUMMING SUBCOMMANDS"
 .TP
@@ -277,10 +319,10 @@ the transformed data.
 The full set of subcommands supported by a streaming instance command,
 \fIstream\fR, is as follows:
 .TP
-\fIstream \fBadd\fR ?\fIoption\fR? \fIdata\fR
+\fIstream \fBadd\fR ?\fIoption...\fR? \fIdata\fR
 .
 A short-cut for
-.QW "\fIstream \fBput \fIoption data\fR"
+.QW "\fIstream \fBput \fR?\fIoption...\fR? \fIdata\fR"
 followed by
 .QW "\fIstream \fBget\fR" .
 .TP
@@ -318,15 +360,27 @@ A short-cut for
 Return up to \fIcount\fR bytes from \fIstream\fR's internal buffers with the
 transformation applied. If \fIcount\fR is omitted, the entire contents of the
 buffers are returned.
+.
+\fIstream \fBheader\fR
+.
+Return the gzip header description dictionary extracted from the stream. Only
+supported for streams created with their \fImode\fR parameter set to
+\fBgunzip\fR.
 .TP
-\fIstream \fBput\fR ?\fIoption\fR? \fIdata\fR
+\fIstream \fBput\fR ?\fIoption...\fR? \fIdata\fR
 .
 Append the contents of the binary string \fIdata\fR to \fIstream\fR's internal
-buffers while applying the transformation. If present, \fIoption\fR must be
-one of the following (or an unambiguous prefix) which are used to modify the
+buffers while applying the transformation. The following \fIoption\fRs are
+supported (or an unambiguous prefix of them), which are used to modify the
 way in which the transformation is applied:
 .RS
 .TP
+\fB\-dictionary\fI binData\fR
+.VS "TIP 400"
+Sets the compression dictionary to use when working with compressing or
+decompressing the data to be \fIbinData\fR.
+.VE
+.TP
 \fB\-finalize\fR
 .
 Mark the stream as finished, ensuring that all bytes have been wholly
@@ -334,12 +388,22 @@ compressed or decompressed. For gzip streams, this also ensures that the
 footer is written to the stream. The stream will need to be reset before
 having more data written to it after this, though data can still be read out
 of the stream with the \fBget\fR subcommand.
+.RS
+.PP
+This option is mutually exclusive with the \fB\-flush\fR and \fB\-fullflush\fR
+options.
+.RE
 .TP
 \fB\-flush\fR
 .
 Ensure that a decompressor consuming the bytes that the current (compressing)
 stream is producing will be able to produce all the bytes that have been
 compressed so far, at some performance penalty.
+.RS
+.PP
+This option is mutually exclusive with the \fB\-finalize\fR and
+\fB\-fullflush\fR options.
+.RE
 .TP
 \fB\-fullflush\fR
 .
@@ -347,6 +411,11 @@ Ensure that not only can a decompressor handle all the bytes produced so far
 (as with \fB\-flush\fR above) but also that it can restart from this point if
 it detects that the stream is partially corrupt. This incurs a substantial
 performance penalty.
+.RS
+.PP
+This option is mutually exclusive with the \fB\-finalize\fR and \fB\-flush\fR
+options.
+.RE
 .RE
 .TP
 \fIstream \fBreset\fR
@@ -385,7 +454,7 @@ $\fIstrm \fBclose\fR
 .SH "SEE ALSO"
 binary(n), chan(n), encoding(n), Tcl_ZlibDeflate(3), RFC1950 \- RFC1952
 .SH "KEYWORDS"
-compress, decompress, deflate, gzip, inflate
+compress, decompress, deflate, gzip, inflate, zlib
 '\" Local Variables:
 '\" mode: nroff
 '\" End:
diff --git a/generic/regc_color.c b/generic/regc_color.c
index b7a571c..f5d6dfd 100644
--- a/generic/regc_color.c
+++ b/generic/regc_color.c
@@ -254,7 +254,14 @@ newcolor(
 	 * Oops, must allocate more.
 	 */
 
+	if (cm->max == MAX_COLOR) {
+	    CERR(REG_ECOLORS);
+	    return COLORLESS;		/* too many colors */
+	}
 	n = cm->ncds * 2;
+	if (n < MAX_COLOR + 1) {
+	    n = MAX_COLOR + 1;
+	}
 	if (cm->cd == cm->cdspace) {
 	    newCd = (struct colordesc *) MALLOC(n * sizeof(struct colordesc));
 	    if (newCd != NULL) {
diff --git a/generic/regc_locale.c b/generic/regc_locale.c
index 40791f4..d8664b5 100644
--- a/generic/regc_locale.c
+++ b/generic/regc_locale.c
@@ -118,7 +118,7 @@ static const struct cname {
  * Unicode character-class tables.
  */
 
-typedef struct crange {
+typedef struct {
     chr start;
     chr end;
 } crange;
@@ -137,97 +137,107 @@ static const crange alphaRangeTable[] = {
     {0x41, 0x5a}, {0x61, 0x7a}, {0xc0, 0xd6}, {0xd8, 0xf6},
     {0xf8, 0x2c1}, {0x2c6, 0x2d1}, {0x2e0, 0x2e4}, {0x370, 0x374},
     {0x37a, 0x37d}, {0x388, 0x38a}, {0x38e, 0x3a1}, {0x3a3, 0x3f5},
-    {0x3f7, 0x481}, {0x48a, 0x527}, {0x531, 0x556}, {0x561, 0x587},
+    {0x3f7, 0x481}, {0x48a, 0x52f}, {0x531, 0x556}, {0x561, 0x587},
     {0x5d0, 0x5ea}, {0x5f0, 0x5f2}, {0x620, 0x64a}, {0x671, 0x6d3},
     {0x6fa, 0x6fc}, {0x712, 0x72f}, {0x74d, 0x7a5}, {0x7ca, 0x7ea},
-    {0x800, 0x815}, {0x840, 0x858}, {0x8a2, 0x8ac}, {0x904, 0x939},
-    {0x958, 0x961}, {0x971, 0x977}, {0x979, 0x97f}, {0x985, 0x98c},
-    {0x993, 0x9a8}, {0x9aa, 0x9b0}, {0x9b6, 0x9b9}, {0x9df, 0x9e1},
-    {0xa05, 0xa0a}, {0xa13, 0xa28}, {0xa2a, 0xa30}, {0xa59, 0xa5c},
-    {0xa72, 0xa74}, {0xa85, 0xa8d}, {0xa8f, 0xa91}, {0xa93, 0xaa8},
-    {0xaaa, 0xab0}, {0xab5, 0xab9}, {0xb05, 0xb0c}, {0xb13, 0xb28},
-    {0xb2a, 0xb30}, {0xb35, 0xb39}, {0xb5f, 0xb61}, {0xb85, 0xb8a},
-    {0xb8e, 0xb90}, {0xb92, 0xb95}, {0xba8, 0xbaa}, {0xbae, 0xbb9},
-    {0xc05, 0xc0c}, {0xc0e, 0xc10}, {0xc12, 0xc28}, {0xc2a, 0xc33},
-    {0xc35, 0xc39}, {0xc85, 0xc8c}, {0xc8e, 0xc90}, {0xc92, 0xca8},
-    {0xcaa, 0xcb3}, {0xcb5, 0xcb9}, {0xd05, 0xd0c}, {0xd0e, 0xd10},
-    {0xd12, 0xd3a}, {0xd7a, 0xd7f}, {0xd85, 0xd96}, {0xd9a, 0xdb1},
-    {0xdb3, 0xdbb}, {0xdc0, 0xdc6}, {0xe01, 0xe30}, {0xe40, 0xe46},
-    {0xe94, 0xe97}, {0xe99, 0xe9f}, {0xea1, 0xea3}, {0xead, 0xeb0},
-    {0xec0, 0xec4}, {0xedc, 0xedf}, {0xf40, 0xf47}, {0xf49, 0xf6c},
-    {0xf88, 0xf8c}, {0x1000, 0x102a}, {0x1050, 0x1055}, {0x105a, 0x105d},
-    {0x106e, 0x1070}, {0x1075, 0x1081}, {0x10a0, 0x10c5}, {0x10d0, 0x10fa},
-    {0x10fc, 0x1248}, {0x124a, 0x124d}, {0x1250, 0x1256}, {0x125a, 0x125d},
-    {0x1260, 0x1288}, {0x128a, 0x128d}, {0x1290, 0x12b0}, {0x12b2, 0x12b5},
-    {0x12b8, 0x12be}, {0x12c2, 0x12c5}, {0x12c8, 0x12d6}, {0x12d8, 0x1310},
-    {0x1312, 0x1315}, {0x1318, 0x135a}, {0x1380, 0x138f}, {0x13a0, 0x13f4},
-    {0x1401, 0x166c}, {0x166f, 0x167f}, {0x1681, 0x169a}, {0x16a0, 0x16ea},
-    {0x1700, 0x170c}, {0x170e, 0x1711}, {0x1720, 0x1731}, {0x1740, 0x1751},
-    {0x1760, 0x176c}, {0x176e, 0x1770}, {0x1780, 0x17b3}, {0x1820, 0x1877},
-    {0x1880, 0x18a8}, {0x18b0, 0x18f5}, {0x1900, 0x191c}, {0x1950, 0x196d},
-    {0x1970, 0x1974}, {0x1980, 0x19ab}, {0x19c1, 0x19c7}, {0x1a00, 0x1a16},
-    {0x1a20, 0x1a54}, {0x1b05, 0x1b33}, {0x1b45, 0x1b4b}, {0x1b83, 0x1ba0},
-    {0x1bba, 0x1be5}, {0x1c00, 0x1c23}, {0x1c4d, 0x1c4f}, {0x1c5a, 0x1c7d},
-    {0x1ce9, 0x1cec}, {0x1cee, 0x1cf1}, {0x1d00, 0x1dbf}, {0x1e00, 0x1f15},
-    {0x1f18, 0x1f1d}, {0x1f20, 0x1f45}, {0x1f48, 0x1f4d}, {0x1f50, 0x1f57},
-    {0x1f5f, 0x1f7d}, {0x1f80, 0x1fb4}, {0x1fb6, 0x1fbc}, {0x1fc2, 0x1fc4},
-    {0x1fc6, 0x1fcc}, {0x1fd0, 0x1fd3}, {0x1fd6, 0x1fdb}, {0x1fe0, 0x1fec},
-    {0x1ff2, 0x1ff4}, {0x1ff6, 0x1ffc}, {0x2090, 0x209c}, {0x210a, 0x2113},
-    {0x2119, 0x211d}, {0x212a, 0x212d}, {0x212f, 0x2139}, {0x213c, 0x213f},
-    {0x2145, 0x2149}, {0x2c00, 0x2c2e}, {0x2c30, 0x2c5e}, {0x2c60, 0x2ce4},
-    {0x2ceb, 0x2cee}, {0x2d00, 0x2d25}, {0x2d30, 0x2d67}, {0x2d80, 0x2d96},
-    {0x2da0, 0x2da6}, {0x2da8, 0x2dae}, {0x2db0, 0x2db6}, {0x2db8, 0x2dbe},
-    {0x2dc0, 0x2dc6}, {0x2dc8, 0x2dce}, {0x2dd0, 0x2dd6}, {0x2dd8, 0x2dde},
-    {0x3031, 0x3035}, {0x3041, 0x3096}, {0x309d, 0x309f}, {0x30a1, 0x30fa},
-    {0x30fc, 0x30ff}, {0x3105, 0x312d}, {0x3131, 0x318e}, {0x31a0, 0x31ba},
-    {0x31f0, 0x31ff}, {0x3400, 0x4db5}, {0x4e00, 0x9fcc}, {0xa000, 0xa48c},
-    {0xa4d0, 0xa4fd}, {0xa500, 0xa60c}, {0xa610, 0xa61f}, {0xa640, 0xa66e},
-    {0xa67f, 0xa697}, {0xa6a0, 0xa6e5}, {0xa717, 0xa71f}, {0xa722, 0xa788},
-    {0xa78b, 0xa78e}, {0xa790, 0xa793}, {0xa7a0, 0xa7aa}, {0xa7f8, 0xa801},
-    {0xa803, 0xa805}, {0xa807, 0xa80a}, {0xa80c, 0xa822}, {0xa840, 0xa873},
-    {0xa882, 0xa8b3}, {0xa8f2, 0xa8f7}, {0xa90a, 0xa925}, {0xa930, 0xa946},
-    {0xa960, 0xa97c}, {0xa984, 0xa9b2}, {0xaa00, 0xaa28}, {0xaa40, 0xaa42},
-    {0xaa44, 0xaa4b}, {0xaa60, 0xaa76}, {0xaa80, 0xaaaf}, {0xaab9, 0xaabd},
-    {0xaadb, 0xaadd}, {0xaae0, 0xaaea}, {0xaaf2, 0xaaf4}, {0xab01, 0xab06},
-    {0xab09, 0xab0e}, {0xab11, 0xab16}, {0xab20, 0xab26}, {0xab28, 0xab2e},
-    {0xabc0, 0xabe2}, {0xac00, 0xd7a3}, {0xd7b0, 0xd7c6}, {0xd7cb, 0xd7fb},
-    {0xf900, 0xfa6d}, {0xfa70, 0xfad9}, {0xfb00, 0xfb06}, {0xfb13, 0xfb17},
-    {0xfb1f, 0xfb28}, {0xfb2a, 0xfb36}, {0xfb38, 0xfb3c}, {0xfb46, 0xfbb1},
-    {0xfbd3, 0xfd3d}, {0xfd50, 0xfd8f}, {0xfd92, 0xfdc7}, {0xfdf0, 0xfdfb},
-    {0xfe70, 0xfe74}, {0xfe76, 0xfefc}, {0xff21, 0xff3a}, {0xff41, 0xff5a},
-    {0xff66, 0xffbe}, {0xffc2, 0xffc7}, {0xffca, 0xffcf}, {0xffd2, 0xffd7},
-    {0xffda, 0xffdc}
+    {0x800, 0x815}, {0x840, 0x858}, {0x8a0, 0x8b2}, {0x904, 0x939},
+    {0x958, 0x961}, {0x971, 0x980}, {0x985, 0x98c}, {0x993, 0x9a8},
+    {0x9aa, 0x9b0}, {0x9b6, 0x9b9}, {0x9df, 0x9e1}, {0xa05, 0xa0a},
+    {0xa13, 0xa28}, {0xa2a, 0xa30}, {0xa59, 0xa5c}, {0xa72, 0xa74},
+    {0xa85, 0xa8d}, {0xa8f, 0xa91}, {0xa93, 0xaa8}, {0xaaa, 0xab0},
+    {0xab5, 0xab9}, {0xb05, 0xb0c}, {0xb13, 0xb28}, {0xb2a, 0xb30},
+    {0xb35, 0xb39}, {0xb5f, 0xb61}, {0xb85, 0xb8a}, {0xb8e, 0xb90},
+    {0xb92, 0xb95}, {0xba8, 0xbaa}, {0xbae, 0xbb9}, {0xc05, 0xc0c},
+    {0xc0e, 0xc10}, {0xc12, 0xc28}, {0xc2a, 0xc39}, {0xc85, 0xc8c},
+    {0xc8e, 0xc90}, {0xc92, 0xca8}, {0xcaa, 0xcb3}, {0xcb5, 0xcb9},
+    {0xd05, 0xd0c}, {0xd0e, 0xd10}, {0xd12, 0xd3a}, {0xd7a, 0xd7f},
+    {0xd85, 0xd96}, {0xd9a, 0xdb1}, {0xdb3, 0xdbb}, {0xdc0, 0xdc6},
+    {0xe01, 0xe30}, {0xe40, 0xe46}, {0xe94, 0xe97}, {0xe99, 0xe9f},
+    {0xea1, 0xea3}, {0xead, 0xeb0}, {0xec0, 0xec4}, {0xedc, 0xedf},
+    {0xf40, 0xf47}, {0xf49, 0xf6c}, {0xf88, 0xf8c}, {0x1000, 0x102a},
+    {0x1050, 0x1055}, {0x105a, 0x105d}, {0x106e, 0x1070}, {0x1075, 0x1081},
+    {0x10a0, 0x10c5}, {0x10d0, 0x10fa}, {0x10fc, 0x1248}, {0x124a, 0x124d},
+    {0x1250, 0x1256}, {0x125a, 0x125d}, {0x1260, 0x1288}, {0x128a, 0x128d},
+    {0x1290, 0x12b0}, {0x12b2, 0x12b5}, {0x12b8, 0x12be}, {0x12c2, 0x12c5},
+    {0x12c8, 0x12d6}, {0x12d8, 0x1310}, {0x1312, 0x1315}, {0x1318, 0x135a},
+    {0x1380, 0x138f}, {0x13a0, 0x13f4}, {0x1401, 0x166c}, {0x166f, 0x167f},
+    {0x1681, 0x169a}, {0x16a0, 0x16ea}, {0x16f1, 0x16f8}, {0x1700, 0x170c},
+    {0x170e, 0x1711}, {0x1720, 0x1731}, {0x1740, 0x1751}, {0x1760, 0x176c},
+    {0x176e, 0x1770}, {0x1780, 0x17b3}, {0x1820, 0x1877}, {0x1880, 0x18a8},
+    {0x18b0, 0x18f5}, {0x1900, 0x191e}, {0x1950, 0x196d}, {0x1970, 0x1974},
+    {0x1980, 0x19ab}, {0x19c1, 0x19c7}, {0x1a00, 0x1a16}, {0x1a20, 0x1a54},
+    {0x1b05, 0x1b33}, {0x1b45, 0x1b4b}, {0x1b83, 0x1ba0}, {0x1bba, 0x1be5},
+    {0x1c00, 0x1c23}, {0x1c4d, 0x1c4f}, {0x1c5a, 0x1c7d}, {0x1ce9, 0x1cec},
+    {0x1cee, 0x1cf1}, {0x1d00, 0x1dbf}, {0x1e00, 0x1f15}, {0x1f18, 0x1f1d},
+    {0x1f20, 0x1f45}, {0x1f48, 0x1f4d}, {0x1f50, 0x1f57}, {0x1f5f, 0x1f7d},
+    {0x1f80, 0x1fb4}, {0x1fb6, 0x1fbc}, {0x1fc2, 0x1fc4}, {0x1fc6, 0x1fcc},
+    {0x1fd0, 0x1fd3}, {0x1fd6, 0x1fdb}, {0x1fe0, 0x1fec}, {0x1ff2, 0x1ff4},
+    {0x1ff6, 0x1ffc}, {0x2090, 0x209c}, {0x210a, 0x2113}, {0x2119, 0x211d},
+    {0x212a, 0x212d}, {0x212f, 0x2139}, {0x213c, 0x213f}, {0x2145, 0x2149},
+    {0x2c00, 0x2c2e}, {0x2c30, 0x2c5e}, {0x2c60, 0x2ce4}, {0x2ceb, 0x2cee},
+    {0x2d00, 0x2d25}, {0x2d30, 0x2d67}, {0x2d80, 0x2d96}, {0x2da0, 0x2da6},
+    {0x2da8, 0x2dae}, {0x2db0, 0x2db6}, {0x2db8, 0x2dbe}, {0x2dc0, 0x2dc6},
+    {0x2dc8, 0x2dce}, {0x2dd0, 0x2dd6}, {0x2dd8, 0x2dde}, {0x3031, 0x3035},
+    {0x3041, 0x3096}, {0x309d, 0x309f}, {0x30a1, 0x30fa}, {0x30fc, 0x30ff},
+    {0x3105, 0x312d}, {0x3131, 0x318e}, {0x31a0, 0x31ba}, {0x31f0, 0x31ff},
+    {0x3400, 0x4db5}, {0x4e00, 0x9fcc}, {0xa000, 0xa48c}, {0xa4d0, 0xa4fd},
+    {0xa500, 0xa60c}, {0xa610, 0xa61f}, {0xa640, 0xa66e}, {0xa67f, 0xa69d},
+    {0xa6a0, 0xa6e5}, {0xa717, 0xa71f}, {0xa722, 0xa788}, {0xa78b, 0xa78e},
+    {0xa790, 0xa7ad}, {0xa7f7, 0xa801}, {0xa803, 0xa805}, {0xa807, 0xa80a},
+    {0xa80c, 0xa822}, {0xa840, 0xa873}, {0xa882, 0xa8b3}, {0xa8f2, 0xa8f7},
+    {0xa90a, 0xa925}, {0xa930, 0xa946}, {0xa960, 0xa97c}, {0xa984, 0xa9b2},
+    {0xa9e0, 0xa9e4}, {0xa9e6, 0xa9ef}, {0xa9fa, 0xa9fe}, {0xaa00, 0xaa28},
+    {0xaa40, 0xaa42}, {0xaa44, 0xaa4b}, {0xaa60, 0xaa76}, {0xaa7e, 0xaaaf},
+    {0xaab9, 0xaabd}, {0xaadb, 0xaadd}, {0xaae0, 0xaaea}, {0xaaf2, 0xaaf4},
+    {0xab01, 0xab06}, {0xab09, 0xab0e}, {0xab11, 0xab16}, {0xab20, 0xab26},
+    {0xab28, 0xab2e}, {0xab30, 0xab5a}, {0xab5c, 0xab5f}, {0xabc0, 0xabe2},
+    {0xac00, 0xd7a3}, {0xd7b0, 0xd7c6}, {0xd7cb, 0xd7fb}, {0xf900, 0xfa6d},
+    {0xfa70, 0xfad9}, {0xfb00, 0xfb06}, {0xfb13, 0xfb17}, {0xfb1f, 0xfb28},
+    {0xfb2a, 0xfb36}, {0xfb38, 0xfb3c}, {0xfb46, 0xfbb1}, {0xfbd3, 0xfd3d},
+    {0xfd50, 0xfd8f}, {0xfd92, 0xfdc7}, {0xfdf0, 0xfdfb}, {0xfe70, 0xfe74},
+    {0xfe76, 0xfefc}, {0xff21, 0xff3a}, {0xff41, 0xff5a}, {0xff66, 0xffbe},
+    {0xffc2, 0xffc7}, {0xffca, 0xffcf}, {0xffd2, 0xffd7}, {0xffda, 0xffdc}
 #if TCL_UTF_MAX > 4
     ,{0x10000, 0x1000b}, {0x1000d, 0x10026}, {0x10028, 0x1003a}, {0x1003f, 0x1004d},
     {0x10050, 0x1005d}, {0x10080, 0x100fa}, {0x10280, 0x1029c}, {0x102a0, 0x102d0},
-    {0x10300, 0x1031e}, {0x10330, 0x10340}, {0x10342, 0x10349}, {0x10380, 0x1039d},
-    {0x103a0, 0x103c3}, {0x103c8, 0x103cf}, {0x10400, 0x1049d}, {0x10800, 0x10805},
-    {0x1080a, 0x10835}, {0x1083f, 0x10855}, {0x10900, 0x10915}, {0x10920, 0x10939},
+    {0x10300, 0x1031f}, {0x10330, 0x10340}, {0x10342, 0x10349}, {0x10350, 0x10375},
+    {0x10380, 0x1039d}, {0x103a0, 0x103c3}, {0x103c8, 0x103cf}, {0x10400, 0x1049d},
+    {0x10500, 0x10527}, {0x10530, 0x10563}, {0x10600, 0x10736}, {0x10740, 0x10755},
+    {0x10760, 0x10767}, {0x10800, 0x10805}, {0x1080a, 0x10835}, {0x1083f, 0x10855},
+    {0x10860, 0x10876}, {0x10880, 0x1089e}, {0x10900, 0x10915}, {0x10920, 0x10939},
     {0x10980, 0x109b7}, {0x10a10, 0x10a13}, {0x10a15, 0x10a17}, {0x10a19, 0x10a33},
-    {0x10a60, 0x10a7c}, {0x10b00, 0x10b35}, {0x10b40, 0x10b55}, {0x10b60, 0x10b72},
+    {0x10a60, 0x10a7c}, {0x10a80, 0x10a9c}, {0x10ac0, 0x10ac7}, {0x10ac9, 0x10ae4},
+    {0x10b00, 0x10b35}, {0x10b40, 0x10b55}, {0x10b60, 0x10b72}, {0x10b80, 0x10b91},
     {0x10c00, 0x10c48}, {0x11003, 0x11037}, {0x11083, 0x110af}, {0x110d0, 0x110e8},
-    {0x11103, 0x11126}, {0x11183, 0x111b2}, {0x111c1, 0x111c4}, {0x11680, 0x116aa},
-    {0x12000, 0x1236e}, {0x13000, 0x1342e}, {0x16800, 0x16a38}, {0x16f00, 0x16f44},
-    {0x16f93, 0x16f9f}, {0x1d400, 0x1d454}, {0x1d456, 0x1d49c}, {0x1d4a9, 0x1d4ac},
+    {0x11103, 0x11126}, {0x11150, 0x11172}, {0x11183, 0x111b2}, {0x111c1, 0x111c4},
+    {0x11200, 0x11211}, {0x11213, 0x1122b}, {0x112b0, 0x112de}, {0x11305, 0x1130c},
+    {0x11313, 0x11328}, {0x1132a, 0x11330}, {0x11335, 0x11339}, {0x1135d, 0x11361},
+    {0x11480, 0x114af}, {0x11580, 0x115ae}, {0x11600, 0x1162f}, {0x11680, 0x116aa},
+    {0x118a0, 0x118df}, {0x11ac0, 0x11af8}, {0x12000, 0x12398}, {0x13000, 0x1342e},
+    {0x16800, 0x16a38}, {0x16a40, 0x16a5e}, {0x16ad0, 0x16aed}, {0x16b00, 0x16b2f},
+    {0x16b40, 0x16b43}, {0x16b63, 0x16b77}, {0x16b7d, 0x16b8f}, {0x16f00, 0x16f44},
+    {0x16f93, 0x16f9f}, {0x1bc00, 0x1bc6a}, {0x1bc70, 0x1bc7c}, {0x1bc80, 0x1bc88},
+    {0x1bc90, 0x1bc99}, {0x1d400, 0x1d454}, {0x1d456, 0x1d49c}, {0x1d4a9, 0x1d4ac},
     {0x1d4ae, 0x1d4b9}, {0x1d4bd, 0x1d4c3}, {0x1d4c5, 0x1d505}, {0x1d507, 0x1d50a},
     {0x1d50d, 0x1d514}, {0x1d516, 0x1d51c}, {0x1d51e, 0x1d539}, {0x1d53b, 0x1d53e},
     {0x1d540, 0x1d544}, {0x1d54a, 0x1d550}, {0x1d552, 0x1d6a5}, {0x1d6a8, 0x1d6c0},
     {0x1d6c2, 0x1d6da}, {0x1d6dc, 0x1d6fa}, {0x1d6fc, 0x1d714}, {0x1d716, 0x1d734},
     {0x1d736, 0x1d74e}, {0x1d750, 0x1d76e}, {0x1d770, 0x1d788}, {0x1d78a, 0x1d7a8},
-    {0x1d7aa, 0x1d7c2}, {0x1d7c4, 0x1d7cb}, {0x1ee00, 0x1ee03}, {0x1ee05, 0x1ee1f},
-    {0x1ee29, 0x1ee32}, {0x1ee34, 0x1ee37}, {0x1ee4d, 0x1ee4f}, {0x1ee67, 0x1ee6a},
-    {0x1ee6c, 0x1ee72}, {0x1ee74, 0x1ee77}, {0x1ee79, 0x1ee7c}, {0x1ee80, 0x1ee89},
-    {0x1ee8b, 0x1ee9b}, {0x1eea1, 0x1eea3}, {0x1eea5, 0x1eea9}, {0x1eeab, 0x1eebb},
-    {0x20000, 0x2a6d6}, {0x2a700, 0x2b734}, {0x2b740, 0x2b81d}, {0x2f800, 0x2fa1d}
+    {0x1d7aa, 0x1d7c2}, {0x1d7c4, 0x1d7cb}, {0x1e800, 0x1e8c4}, {0x1ee00, 0x1ee03},
+    {0x1ee05, 0x1ee1f}, {0x1ee29, 0x1ee32}, {0x1ee34, 0x1ee37}, {0x1ee4d, 0x1ee4f},
+    {0x1ee67, 0x1ee6a}, {0x1ee6c, 0x1ee72}, {0x1ee74, 0x1ee77}, {0x1ee79, 0x1ee7c},
+    {0x1ee80, 0x1ee89}, {0x1ee8b, 0x1ee9b}, {0x1eea1, 0x1eea3}, {0x1eea5, 0x1eea9},
+    {0x1eeab, 0x1eebb}, {0x20000, 0x2a6d6}, {0x2a700, 0x2b734}, {0x2b740, 0x2b81d},
+    {0x2f800, 0x2fa1d}
 #endif
 };
 
 #define NUM_ALPHA_RANGE (sizeof(alphaRangeTable)/sizeof(crange))
 
 static const chr alphaCharTable[] = {
-    0xaa, 0xb5, 0xba, 0x2ec, 0x2ee, 0x376, 0x377, 0x386, 0x38c,
-    0x559, 0x66e, 0x66f, 0x6d5, 0x6e5, 0x6e6, 0x6ee, 0x6ef, 0x6ff,
-    0x710, 0x7b1, 0x7f4, 0x7f5, 0x7fa, 0x81a, 0x824, 0x828, 0x8a0,
+    0xaa, 0xb5, 0xba, 0x2ec, 0x2ee, 0x376, 0x377, 0x37f, 0x386,
+    0x38c, 0x559, 0x66e, 0x66f, 0x6d5, 0x6e5, 0x6e6, 0x6ee, 0x6ef,
+    0x6ff, 0x710, 0x7b1, 0x7f4, 0x7f5, 0x7fa, 0x81a, 0x824, 0x828,
     0x93d, 0x950, 0x98f, 0x990, 0x9b2, 0x9bd, 0x9ce, 0x9dc, 0x9dd,
     0x9f0, 0x9f1, 0xa0f, 0xa10, 0xa32, 0xa33, 0xa35, 0xa36, 0xa38,
     0xa39, 0xa5e, 0xab2, 0xab3, 0xabd, 0xad0, 0xae0, 0xae1, 0xb0f,
@@ -241,14 +251,16 @@ static const chr alphaCharTable[] = {
     0x1bae, 0x1baf, 0x1cf5, 0x1cf6, 0x1f59, 0x1f5b, 0x1f5d, 0x1fbe, 0x2071,
     0x207f, 0x2102, 0x2107, 0x2115, 0x2124, 0x2126, 0x2128, 0x214e, 0x2183,
     0x2184, 0x2cf2, 0x2cf3, 0x2d27, 0x2d2d, 0x2d6f, 0x2e2f, 0x3005, 0x3006,
-    0x303b, 0x303c, 0xa62a, 0xa62b, 0xa8fb, 0xa9cf, 0xaa7a, 0xaab1, 0xaab5,
-    0xaab6, 0xaac0, 0xaac2, 0xfb1d, 0xfb3e, 0xfb40, 0xfb41, 0xfb43, 0xfb44
+    0x303b, 0x303c, 0xa62a, 0xa62b, 0xa7b0, 0xa7b1, 0xa8fb, 0xa9cf, 0xaa7a,
+    0xaab1, 0xaab5, 0xaab6, 0xaac0, 0xaac2, 0xab64, 0xab65, 0xfb1d, 0xfb3e,
+    0xfb40, 0xfb41, 0xfb43, 0xfb44
 #if TCL_UTF_MAX > 4
     ,0x1003c, 0x1003d, 0x10808, 0x10837, 0x10838, 0x1083c, 0x109be, 0x109bf, 0x10a00,
-    0x16f50, 0x1b000, 0x1b001, 0x1d49e, 0x1d49f, 0x1d4a2, 0x1d4a5, 0x1d4a6, 0x1d4bb,
-    0x1d546, 0x1ee21, 0x1ee22, 0x1ee24, 0x1ee27, 0x1ee39, 0x1ee3b, 0x1ee42, 0x1ee47,
-    0x1ee49, 0x1ee4b, 0x1ee51, 0x1ee52, 0x1ee54, 0x1ee57, 0x1ee59, 0x1ee5b, 0x1ee5d,
-    0x1ee5f, 0x1ee61, 0x1ee62, 0x1ee64, 0x1ee7e
+    0x11176, 0x111da, 0x1130f, 0x11310, 0x11332, 0x11333, 0x1133d, 0x114c4, 0x114c5,
+    0x114c7, 0x11644, 0x118ff, 0x16f50, 0x1b000, 0x1b001, 0x1d49e, 0x1d49f, 0x1d4a2,
+    0x1d4a5, 0x1d4a6, 0x1d4bb, 0x1d546, 0x1ee21, 0x1ee22, 0x1ee24, 0x1ee27, 0x1ee39,
+    0x1ee3b, 0x1ee42, 0x1ee47, 0x1ee49, 0x1ee4b, 0x1ee51, 0x1ee52, 0x1ee54, 0x1ee57,
+    0x1ee59, 0x1ee5b, 0x1ee5d, 0x1ee5f, 0x1ee61, 0x1ee62, 0x1ee64, 0x1ee7e
 #endif
 };
 
@@ -259,17 +271,19 @@ static const chr alphaCharTable[] = {
  */
 
 static const crange controlRangeTable[] = {
-    {0x7f, 0x9f}, {0x600, 0x604}, {0x200b, 0x200f}, {0x202a, 0x202e},
-    {0x2060, 0x2064}, {0x206a, 0x206f}, {0xe000, 0xf8ff}, {0xfff9, 0xfffb}
+    {0x0, 0x1f}, {0x7f, 0x9f}, {0x600, 0x605}, {0x200b, 0x200f},
+    {0x202a, 0x202e}, {0x2060, 0x2064}, {0x2066, 0x206f}, {0xe000, 0xf8ff},
+    {0xfff9, 0xfffb}
 #if TCL_UTF_MAX > 4
-    ,{0x1d173, 0x1d17a}, {0xe0020, 0xe007f}, {0xf0000, 0xffffd}, {0x100000, 0x10fffd}
+    ,{0x1bca0, 0x1bca3}, {0x1d173, 0x1d17a}, {0xe0020, 0xe007f}, {0xf0000, 0xffffd},
+    {0x100000, 0x10fffd}
 #endif
 };
 
 #define NUM_CONTROL_RANGE (sizeof(controlRangeTable)/sizeof(crange))
 
 static const chr controlCharTable[] = {
-    0xad, 0x6dd, 0x70f, 0xfeff
+    0xad, 0x61c, 0x6dd, 0x70f, 0x180e, 0xfeff
 #if TCL_UTF_MAX > 4
     ,0x110bd, 0xe0001
 #endif
@@ -285,15 +299,18 @@ static const crange digitRangeTable[] = {
     {0x30, 0x39}, {0x660, 0x669}, {0x6f0, 0x6f9}, {0x7c0, 0x7c9},
     {0x966, 0x96f}, {0x9e6, 0x9ef}, {0xa66, 0xa6f}, {0xae6, 0xaef},
     {0xb66, 0xb6f}, {0xbe6, 0xbef}, {0xc66, 0xc6f}, {0xce6, 0xcef},
-    {0xd66, 0xd6f}, {0xe50, 0xe59}, {0xed0, 0xed9}, {0xf20, 0xf29},
-    {0x1040, 0x1049}, {0x1090, 0x1099}, {0x17e0, 0x17e9}, {0x1810, 0x1819},
-    {0x1946, 0x194f}, {0x19d0, 0x19d9}, {0x1a80, 0x1a89}, {0x1a90, 0x1a99},
-    {0x1b50, 0x1b59}, {0x1bb0, 0x1bb9}, {0x1c40, 0x1c49}, {0x1c50, 0x1c59},
-    {0xa620, 0xa629}, {0xa8d0, 0xa8d9}, {0xa900, 0xa909}, {0xa9d0, 0xa9d9},
-    {0xaa50, 0xaa59}, {0xabf0, 0xabf9}, {0xff10, 0xff19}
+    {0xd66, 0xd6f}, {0xde6, 0xdef}, {0xe50, 0xe59}, {0xed0, 0xed9},
+    {0xf20, 0xf29}, {0x1040, 0x1049}, {0x1090, 0x1099}, {0x17e0, 0x17e9},
+    {0x1810, 0x1819}, {0x1946, 0x194f}, {0x19d0, 0x19d9}, {0x1a80, 0x1a89},
+    {0x1a90, 0x1a99}, {0x1b50, 0x1b59}, {0x1bb0, 0x1bb9}, {0x1c40, 0x1c49},
+    {0x1c50, 0x1c59}, {0xa620, 0xa629}, {0xa8d0, 0xa8d9}, {0xa900, 0xa909},
+    {0xa9d0, 0xa9d9}, {0xa9f0, 0xa9f9}, {0xaa50, 0xaa59}, {0xabf0, 0xabf9},
+    {0xff10, 0xff19}
 #if TCL_UTF_MAX > 4
     ,{0x104a0, 0x104a9}, {0x11066, 0x1106f}, {0x110f0, 0x110f9}, {0x11136, 0x1113f},
-    {0x111d0, 0x111d9}, {0x116c0, 0x116c9}, {0x1d7ce, 0x1d7ff}
+    {0x111d0, 0x111d9}, {0x112f0, 0x112f9}, {0x114d0, 0x114d9}, {0x11650, 0x11659},
+    {0x116c0, 0x116c9}, {0x118e0, 0x118e9}, {0x16a60, 0x16a69}, {0x16b50, 0x16b59},
+    {0x1d7ce, 0x1d7ff}
 #endif
 };
 
@@ -315,15 +332,18 @@ static const crange punctRangeTable[] = {
     {0x17d8, 0x17da}, {0x1800, 0x180a}, {0x1aa0, 0x1aa6}, {0x1aa8, 0x1aad},
     {0x1b5a, 0x1b60}, {0x1bfc, 0x1bff}, {0x1c3b, 0x1c3f}, {0x1cc0, 0x1cc7},
     {0x2010, 0x2027}, {0x2030, 0x2043}, {0x2045, 0x2051}, {0x2053, 0x205e},
-    {0x2768, 0x2775}, {0x27e6, 0x27ef}, {0x2983, 0x2998}, {0x29d8, 0x29db},
-    {0x2cf9, 0x2cfc}, {0x2e00, 0x2e2e}, {0x2e30, 0x2e3b}, {0x3001, 0x3003},
-    {0x3008, 0x3011}, {0x3014, 0x301f}, {0xa60d, 0xa60f}, {0xa6f2, 0xa6f7},
-    {0xa874, 0xa877}, {0xa8f8, 0xa8fa}, {0xa9c1, 0xa9cd}, {0xaa5c, 0xaa5f},
-    {0xfe10, 0xfe19}, {0xfe30, 0xfe52}, {0xfe54, 0xfe61}, {0xff01, 0xff03},
-    {0xff05, 0xff0a}, {0xff0c, 0xff0f}, {0xff3b, 0xff3d}, {0xff5f, 0xff65}
+    {0x2308, 0x230b}, {0x2768, 0x2775}, {0x27e6, 0x27ef}, {0x2983, 0x2998},
+    {0x29d8, 0x29db}, {0x2cf9, 0x2cfc}, {0x2e00, 0x2e2e}, {0x2e30, 0x2e42},
+    {0x3001, 0x3003}, {0x3008, 0x3011}, {0x3014, 0x301f}, {0xa60d, 0xa60f},
+    {0xa6f2, 0xa6f7}, {0xa874, 0xa877}, {0xa8f8, 0xa8fa}, {0xa9c1, 0xa9cd},
+    {0xaa5c, 0xaa5f}, {0xfe10, 0xfe19}, {0xfe30, 0xfe52}, {0xfe54, 0xfe61},
+    {0xff01, 0xff03}, {0xff05, 0xff0a}, {0xff0c, 0xff0f}, {0xff3b, 0xff3d},
+    {0xff5f, 0xff65}
 #if TCL_UTF_MAX > 4
-    ,{0x10100, 0x10102}, {0x10a50, 0x10a58}, {0x10b39, 0x10b3f}, {0x11047, 0x1104d},
-    {0x110be, 0x110c1}, {0x11140, 0x11143}, {0x111c5, 0x111c8}, {0x12470, 0x12473}
+    ,{0x10100, 0x10102}, {0x10a50, 0x10a58}, {0x10af0, 0x10af6}, {0x10b39, 0x10b3f},
+    {0x10b99, 0x10b9c}, {0x11047, 0x1104d}, {0x110be, 0x110c1}, {0x11140, 0x11143},
+    {0x111c5, 0x111c8}, {0x11238, 0x1123d}, {0x115c1, 0x115c9}, {0x11641, 0x11643},
+    {0x12470, 0x12474}, {0x16b37, 0x16b3b}
 #endif
 };
 
@@ -343,7 +363,8 @@ static const chr punctCharTable[] = {
     0xaaf0, 0xaaf1, 0xabeb, 0xfd3e, 0xfd3f, 0xfe63, 0xfe68, 0xfe6a, 0xfe6b,
     0xff1a, 0xff1b, 0xff1f, 0xff20, 0xff3f, 0xff5b, 0xff5d
 #if TCL_UTF_MAX > 4
-    ,0x1039f, 0x103d0, 0x10857, 0x1091f, 0x1093f, 0x10a7f, 0x110bb, 0x110bc
+    ,0x1039f, 0x103d0, 0x1056f, 0x10857, 0x1091f, 0x1093f, 0x10a7f, 0x110bb, 0x110bc,
+    0x11174, 0x11175, 0x111cd, 0x114c6, 0x16a6e, 0x16a6f, 0x16af5, 0x16b44, 0x1bc9f
 #endif
 };
 
@@ -354,13 +375,14 @@ static const chr punctCharTable[] = {
  */
 
 static const crange spaceRangeTable[] = {
-    {0x9, 0xd}, {0x2000, 0x200a}
+    {0x9, 0xd}, {0x2000, 0x200b}
 };
 
 #define NUM_SPACE_RANGE (sizeof(spaceRangeTable)/sizeof(crange))
 
 static const chr spaceCharTable[] = {
-    0x20, 0xa0, 0x1680, 0x180e, 0x2028, 0x2029, 0x202f, 0x205f, 0x3000
+    0x20, 0x85, 0xa0, 0x1680, 0x180e, 0x2028, 0x2029, 0x202f, 0x205f,
+    0x2060, 0x3000, 0xfeff
 };
 
 #define NUM_SPACE_CHAR (sizeof(spaceCharTable)/sizeof(chr))
@@ -380,15 +402,16 @@ static const crange lowerRangeTable[] = {
     {0x1f90, 0x1f97}, {0x1fa0, 0x1fa7}, {0x1fb0, 0x1fb4}, {0x1fc2, 0x1fc4},
     {0x1fd0, 0x1fd3}, {0x1fe0, 0x1fe7}, {0x1ff2, 0x1ff4}, {0x2146, 0x2149},
     {0x2c30, 0x2c5e}, {0x2c76, 0x2c7b}, {0x2d00, 0x2d25}, {0xa72f, 0xa731},
-    {0xa771, 0xa778}, {0xfb00, 0xfb06}, {0xfb13, 0xfb17}, {0xff41, 0xff5a}
+    {0xa771, 0xa778}, {0xa793, 0xa795}, {0xab30, 0xab5a}, {0xfb00, 0xfb06},
+    {0xfb13, 0xfb17}, {0xff41, 0xff5a}
 #if TCL_UTF_MAX > 4
-    ,{0x10428, 0x1044f}, {0x1d41a, 0x1d433}, {0x1d44e, 0x1d454}, {0x1d456, 0x1d467},
-    {0x1d482, 0x1d49b}, {0x1d4b6, 0x1d4b9}, {0x1d4bd, 0x1d4c3}, {0x1d4c5, 0x1d4cf},
-    {0x1d4ea, 0x1d503}, {0x1d51e, 0x1d537}, {0x1d552, 0x1d56b}, {0x1d586, 0x1d59f},
-    {0x1d5ba, 0x1d5d3}, {0x1d5ee, 0x1d607}, {0x1d622, 0x1d63b}, {0x1d656, 0x1d66f},
-    {0x1d68a, 0x1d6a5}, {0x1d6c2, 0x1d6da}, {0x1d6dc, 0x1d6e1}, {0x1d6fc, 0x1d714},
-    {0x1d716, 0x1d71b}, {0x1d736, 0x1d74e}, {0x1d750, 0x1d755}, {0x1d770, 0x1d788},
-    {0x1d78a, 0x1d78f}, {0x1d7aa, 0x1d7c2}, {0x1d7c4, 0x1d7c9}
+    ,{0x10428, 0x1044f}, {0x118c0, 0x118df}, {0x1d41a, 0x1d433}, {0x1d44e, 0x1d454},
+    {0x1d456, 0x1d467}, {0x1d482, 0x1d49b}, {0x1d4b6, 0x1d4b9}, {0x1d4bd, 0x1d4c3},
+    {0x1d4c5, 0x1d4cf}, {0x1d4ea, 0x1d503}, {0x1d51e, 0x1d537}, {0x1d552, 0x1d56b},
+    {0x1d586, 0x1d59f}, {0x1d5ba, 0x1d5d3}, {0x1d5ee, 0x1d607}, {0x1d622, 0x1d63b},
+    {0x1d656, 0x1d66f}, {0x1d68a, 0x1d6a5}, {0x1d6c2, 0x1d6da}, {0x1d6dc, 0x1d6e1},
+    {0x1d6fc, 0x1d714}, {0x1d716, 0x1d71b}, {0x1d736, 0x1d74e}, {0x1d750, 0x1d755},
+    {0x1d770, 0x1d788}, {0x1d78a, 0x1d78f}, {0x1d7aa, 0x1d7c2}, {0x1d7c4, 0x1d7c9}
 #endif
 };
 
@@ -424,39 +447,41 @@ static const chr lowerCharTable[] = {
     0x4f1, 0x4f3, 0x4f5, 0x4f7, 0x4f9, 0x4fb, 0x4fd, 0x4ff, 0x501,
     0x503, 0x505, 0x507, 0x509, 0x50b, 0x50d, 0x50f, 0x511, 0x513,
     0x515, 0x517, 0x519, 0x51b, 0x51d, 0x51f, 0x521, 0x523, 0x525,
-    0x527, 0x1e01, 0x1e03, 0x1e05, 0x1e07, 0x1e09, 0x1e0b, 0x1e0d, 0x1e0f,
-    0x1e11, 0x1e13, 0x1e15, 0x1e17, 0x1e19, 0x1e1b, 0x1e1d, 0x1e1f, 0x1e21,
-    0x1e23, 0x1e25, 0x1e27, 0x1e29, 0x1e2b, 0x1e2d, 0x1e2f, 0x1e31, 0x1e33,
-    0x1e35, 0x1e37, 0x1e39, 0x1e3b, 0x1e3d, 0x1e3f, 0x1e41, 0x1e43, 0x1e45,
-    0x1e47, 0x1e49, 0x1e4b, 0x1e4d, 0x1e4f, 0x1e51, 0x1e53, 0x1e55, 0x1e57,
-    0x1e59, 0x1e5b, 0x1e5d, 0x1e5f, 0x1e61, 0x1e63, 0x1e65, 0x1e67, 0x1e69,
-    0x1e6b, 0x1e6d, 0x1e6f, 0x1e71, 0x1e73, 0x1e75, 0x1e77, 0x1e79, 0x1e7b,
-    0x1e7d, 0x1e7f, 0x1e81, 0x1e83, 0x1e85, 0x1e87, 0x1e89, 0x1e8b, 0x1e8d,
-    0x1e8f, 0x1e91, 0x1e93, 0x1e9f, 0x1ea1, 0x1ea3, 0x1ea5, 0x1ea7, 0x1ea9,
-    0x1eab, 0x1ead, 0x1eaf, 0x1eb1, 0x1eb3, 0x1eb5, 0x1eb7, 0x1eb9, 0x1ebb,
-    0x1ebd, 0x1ebf, 0x1ec1, 0x1ec3, 0x1ec5, 0x1ec7, 0x1ec9, 0x1ecb, 0x1ecd,
-    0x1ecf, 0x1ed1, 0x1ed3, 0x1ed5, 0x1ed7, 0x1ed9, 0x1edb, 0x1edd, 0x1edf,
-    0x1ee1, 0x1ee3, 0x1ee5, 0x1ee7, 0x1ee9, 0x1eeb, 0x1eed, 0x1eef, 0x1ef1,
-    0x1ef3, 0x1ef5, 0x1ef7, 0x1ef9, 0x1efb, 0x1efd, 0x1fb6, 0x1fb7, 0x1fbe,
-    0x1fc6, 0x1fc7, 0x1fd6, 0x1fd7, 0x1ff6, 0x1ff7, 0x210a, 0x210e, 0x210f,
-    0x2113, 0x212f, 0x2134, 0x2139, 0x213c, 0x213d, 0x214e, 0x2184, 0x2c61,
-    0x2c65, 0x2c66, 0x2c68, 0x2c6a, 0x2c6c, 0x2c71, 0x2c73, 0x2c74, 0x2c81,
-    0x2c83, 0x2c85, 0x2c87, 0x2c89, 0x2c8b, 0x2c8d, 0x2c8f, 0x2c91, 0x2c93,
-    0x2c95, 0x2c97, 0x2c99, 0x2c9b, 0x2c9d, 0x2c9f, 0x2ca1, 0x2ca3, 0x2ca5,
-    0x2ca7, 0x2ca9, 0x2cab, 0x2cad, 0x2caf, 0x2cb1, 0x2cb3, 0x2cb5, 0x2cb7,
-    0x2cb9, 0x2cbb, 0x2cbd, 0x2cbf, 0x2cc1, 0x2cc3, 0x2cc5, 0x2cc7, 0x2cc9,
-    0x2ccb, 0x2ccd, 0x2ccf, 0x2cd1, 0x2cd3, 0x2cd5, 0x2cd7, 0x2cd9, 0x2cdb,
-    0x2cdd, 0x2cdf, 0x2ce1, 0x2ce3, 0x2ce4, 0x2cec, 0x2cee, 0x2cf3, 0x2d27,
-    0x2d2d, 0xa641, 0xa643, 0xa645, 0xa647, 0xa649, 0xa64b, 0xa64d, 0xa64f,
-    0xa651, 0xa653, 0xa655, 0xa657, 0xa659, 0xa65b, 0xa65d, 0xa65f, 0xa661,
-    0xa663, 0xa665, 0xa667, 0xa669, 0xa66b, 0xa66d, 0xa681, 0xa683, 0xa685,
-    0xa687, 0xa689, 0xa68b, 0xa68d, 0xa68f, 0xa691, 0xa693, 0xa695, 0xa697,
-    0xa723, 0xa725, 0xa727, 0xa729, 0xa72b, 0xa72d, 0xa733, 0xa735, 0xa737,
-    0xa739, 0xa73b, 0xa73d, 0xa73f, 0xa741, 0xa743, 0xa745, 0xa747, 0xa749,
-    0xa74b, 0xa74d, 0xa74f, 0xa751, 0xa753, 0xa755, 0xa757, 0xa759, 0xa75b,
-    0xa75d, 0xa75f, 0xa761, 0xa763, 0xa765, 0xa767, 0xa769, 0xa76b, 0xa76d,
-    0xa76f, 0xa77a, 0xa77c, 0xa77f, 0xa781, 0xa783, 0xa785, 0xa787, 0xa78c,
-    0xa78e, 0xa791, 0xa793, 0xa7a1, 0xa7a3, 0xa7a5, 0xa7a7, 0xa7a9, 0xa7fa
+    0x527, 0x529, 0x52b, 0x52d, 0x52f, 0x1e01, 0x1e03, 0x1e05, 0x1e07,
+    0x1e09, 0x1e0b, 0x1e0d, 0x1e0f, 0x1e11, 0x1e13, 0x1e15, 0x1e17, 0x1e19,
+    0x1e1b, 0x1e1d, 0x1e1f, 0x1e21, 0x1e23, 0x1e25, 0x1e27, 0x1e29, 0x1e2b,
+    0x1e2d, 0x1e2f, 0x1e31, 0x1e33, 0x1e35, 0x1e37, 0x1e39, 0x1e3b, 0x1e3d,
+    0x1e3f, 0x1e41, 0x1e43, 0x1e45, 0x1e47, 0x1e49, 0x1e4b, 0x1e4d, 0x1e4f,
+    0x1e51, 0x1e53, 0x1e55, 0x1e57, 0x1e59, 0x1e5b, 0x1e5d, 0x1e5f, 0x1e61,
+    0x1e63, 0x1e65, 0x1e67, 0x1e69, 0x1e6b, 0x1e6d, 0x1e6f, 0x1e71, 0x1e73,
+    0x1e75, 0x1e77, 0x1e79, 0x1e7b, 0x1e7d, 0x1e7f, 0x1e81, 0x1e83, 0x1e85,
+    0x1e87, 0x1e89, 0x1e8b, 0x1e8d, 0x1e8f, 0x1e91, 0x1e93, 0x1e9f, 0x1ea1,
+    0x1ea3, 0x1ea5, 0x1ea7, 0x1ea9, 0x1eab, 0x1ead, 0x1eaf, 0x1eb1, 0x1eb3,
+    0x1eb5, 0x1eb7, 0x1eb9, 0x1ebb, 0x1ebd, 0x1ebf, 0x1ec1, 0x1ec3, 0x1ec5,
+    0x1ec7, 0x1ec9, 0x1ecb, 0x1ecd, 0x1ecf, 0x1ed1, 0x1ed3, 0x1ed5, 0x1ed7,
+    0x1ed9, 0x1edb, 0x1edd, 0x1edf, 0x1ee1, 0x1ee3, 0x1ee5, 0x1ee7, 0x1ee9,
+    0x1eeb, 0x1eed, 0x1eef, 0x1ef1, 0x1ef3, 0x1ef5, 0x1ef7, 0x1ef9, 0x1efb,
+    0x1efd, 0x1fb6, 0x1fb7, 0x1fbe, 0x1fc6, 0x1fc7, 0x1fd6, 0x1fd7, 0x1ff6,
+    0x1ff7, 0x210a, 0x210e, 0x210f, 0x2113, 0x212f, 0x2134, 0x2139, 0x213c,
+    0x213d, 0x214e, 0x2184, 0x2c61, 0x2c65, 0x2c66, 0x2c68, 0x2c6a, 0x2c6c,
+    0x2c71, 0x2c73, 0x2c74, 0x2c81, 0x2c83, 0x2c85, 0x2c87, 0x2c89, 0x2c8b,
+    0x2c8d, 0x2c8f, 0x2c91, 0x2c93, 0x2c95, 0x2c97, 0x2c99, 0x2c9b, 0x2c9d,
+    0x2c9f, 0x2ca1, 0x2ca3, 0x2ca5, 0x2ca7, 0x2ca9, 0x2cab, 0x2cad, 0x2caf,
+    0x2cb1, 0x2cb3, 0x2cb5, 0x2cb7, 0x2cb9, 0x2cbb, 0x2cbd, 0x2cbf, 0x2cc1,
+    0x2cc3, 0x2cc5, 0x2cc7, 0x2cc9, 0x2ccb, 0x2ccd, 0x2ccf, 0x2cd1, 0x2cd3,
+    0x2cd5, 0x2cd7, 0x2cd9, 0x2cdb, 0x2cdd, 0x2cdf, 0x2ce1, 0x2ce3, 0x2ce4,
+    0x2cec, 0x2cee, 0x2cf3, 0x2d27, 0x2d2d, 0xa641, 0xa643, 0xa645, 0xa647,
+    0xa649, 0xa64b, 0xa64d, 0xa64f, 0xa651, 0xa653, 0xa655, 0xa657, 0xa659,
+    0xa65b, 0xa65d, 0xa65f, 0xa661, 0xa663, 0xa665, 0xa667, 0xa669, 0xa66b,
+    0xa66d, 0xa681, 0xa683, 0xa685, 0xa687, 0xa689, 0xa68b, 0xa68d, 0xa68f,
+    0xa691, 0xa693, 0xa695, 0xa697, 0xa699, 0xa69b, 0xa723, 0xa725, 0xa727,
+    0xa729, 0xa72b, 0xa72d, 0xa733, 0xa735, 0xa737, 0xa739, 0xa73b, 0xa73d,
+    0xa73f, 0xa741, 0xa743, 0xa745, 0xa747, 0xa749, 0xa74b, 0xa74d, 0xa74f,
+    0xa751, 0xa753, 0xa755, 0xa757, 0xa759, 0xa75b, 0xa75d, 0xa75f, 0xa761,
+    0xa763, 0xa765, 0xa767, 0xa769, 0xa76b, 0xa76d, 0xa76f, 0xa77a, 0xa77c,
+    0xa77f, 0xa781, 0xa783, 0xa785, 0xa787, 0xa78c, 0xa78e, 0xa791, 0xa797,
+    0xa799, 0xa79b, 0xa79d, 0xa79f, 0xa7a1, 0xa7a3, 0xa7a5, 0xa7a7, 0xa7a9,
+    0xa7fa, 0xab64, 0xab65
 #if TCL_UTF_MAX > 4
     ,0x1d4bb, 0x1d7cb
 #endif
@@ -478,14 +503,15 @@ static const crange upperRangeTable[] = {
     {0x1fd8, 0x1fdb}, {0x1fe8, 0x1fec}, {0x1ff8, 0x1ffb}, {0x210b, 0x210d},
     {0x2110, 0x2112}, {0x2119, 0x211d}, {0x212a, 0x212d}, {0x2130, 0x2133},
     {0x2c00, 0x2c2e}, {0x2c62, 0x2c64}, {0x2c6d, 0x2c70}, {0x2c7e, 0x2c80},
-    {0xff21, 0xff3a}
+    {0xa7aa, 0xa7ad}, {0xff21, 0xff3a}
 #if TCL_UTF_MAX > 4
-    ,{0x10400, 0x10427}, {0x1d400, 0x1d419}, {0x1d434, 0x1d44d}, {0x1d468, 0x1d481},
-    {0x1d4a9, 0x1d4ac}, {0x1d4ae, 0x1d4b5}, {0x1d4d0, 0x1d4e9}, {0x1d507, 0x1d50a},
-    {0x1d50d, 0x1d514}, {0x1d516, 0x1d51c}, {0x1d53b, 0x1d53e}, {0x1d540, 0x1d544},
-    {0x1d54a, 0x1d550}, {0x1d56c, 0x1d585}, {0x1d5a0, 0x1d5b9}, {0x1d5d4, 0x1d5ed},
-    {0x1d608, 0x1d621}, {0x1d63c, 0x1d655}, {0x1d670, 0x1d689}, {0x1d6a8, 0x1d6c0},
-    {0x1d6e2, 0x1d6fa}, {0x1d71c, 0x1d734}, {0x1d756, 0x1d76e}, {0x1d790, 0x1d7a8}
+    ,{0x10400, 0x10427}, {0x118a0, 0x118bf}, {0x1d400, 0x1d419}, {0x1d434, 0x1d44d},
+    {0x1d468, 0x1d481}, {0x1d4a9, 0x1d4ac}, {0x1d4ae, 0x1d4b5}, {0x1d4d0, 0x1d4e9},
+    {0x1d507, 0x1d50a}, {0x1d50d, 0x1d514}, {0x1d516, 0x1d51c}, {0x1d53b, 0x1d53e},
+    {0x1d540, 0x1d544}, {0x1d54a, 0x1d550}, {0x1d56c, 0x1d585}, {0x1d5a0, 0x1d5b9},
+    {0x1d5d4, 0x1d5ed}, {0x1d608, 0x1d621}, {0x1d63c, 0x1d655}, {0x1d670, 0x1d689},
+    {0x1d6a8, 0x1d6c0}, {0x1d6e2, 0x1d6fa}, {0x1d71c, 0x1d734}, {0x1d756, 0x1d76e},
+    {0x1d790, 0x1d7a8}
 #endif
 };
 
@@ -508,52 +534,54 @@ static const chr upperCharTable[] = {
     0x20c, 0x20e, 0x210, 0x212, 0x214, 0x216, 0x218, 0x21a, 0x21c,
     0x21e, 0x220, 0x222, 0x224, 0x226, 0x228, 0x22a, 0x22c, 0x22e,
     0x230, 0x232, 0x23a, 0x23b, 0x23d, 0x23e, 0x241, 0x248, 0x24a,
-    0x24c, 0x24e, 0x370, 0x372, 0x376, 0x386, 0x38c, 0x38e, 0x38f,
-    0x3cf, 0x3d8, 0x3da, 0x3dc, 0x3de, 0x3e0, 0x3e2, 0x3e4, 0x3e6,
-    0x3e8, 0x3ea, 0x3ec, 0x3ee, 0x3f4, 0x3f7, 0x3f9, 0x3fa, 0x460,
-    0x462, 0x464, 0x466, 0x468, 0x46a, 0x46c, 0x46e, 0x470, 0x472,
-    0x474, 0x476, 0x478, 0x47a, 0x47c, 0x47e, 0x480, 0x48a, 0x48c,
-    0x48e, 0x490, 0x492, 0x494, 0x496, 0x498, 0x49a, 0x49c, 0x49e,
-    0x4a0, 0x4a2, 0x4a4, 0x4a6, 0x4a8, 0x4aa, 0x4ac, 0x4ae, 0x4b0,
-    0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba, 0x4bc, 0x4be, 0x4c0, 0x4c1,
-    0x4c3, 0x4c5, 0x4c7, 0x4c9, 0x4cb, 0x4cd, 0x4d0, 0x4d2, 0x4d4,
-    0x4d6, 0x4d8, 0x4da, 0x4dc, 0x4de, 0x4e0, 0x4e2, 0x4e4, 0x4e6,
-    0x4e8, 0x4ea, 0x4ec, 0x4ee, 0x4f0, 0x4f2, 0x4f4, 0x4f6, 0x4f8,
-    0x4fa, 0x4fc, 0x4fe, 0x500, 0x502, 0x504, 0x506, 0x508, 0x50a,
-    0x50c, 0x50e, 0x510, 0x512, 0x514, 0x516, 0x518, 0x51a, 0x51c,
-    0x51e, 0x520, 0x522, 0x524, 0x526, 0x10c7, 0x10cd, 0x1e00, 0x1e02,
-    0x1e04, 0x1e06, 0x1e08, 0x1e0a, 0x1e0c, 0x1e0e, 0x1e10, 0x1e12, 0x1e14,
-    0x1e16, 0x1e18, 0x1e1a, 0x1e1c, 0x1e1e, 0x1e20, 0x1e22, 0x1e24, 0x1e26,
-    0x1e28, 0x1e2a, 0x1e2c, 0x1e2e, 0x1e30, 0x1e32, 0x1e34, 0x1e36, 0x1e38,
-    0x1e3a, 0x1e3c, 0x1e3e, 0x1e40, 0x1e42, 0x1e44, 0x1e46, 0x1e48, 0x1e4a,
-    0x1e4c, 0x1e4e, 0x1e50, 0x1e52, 0x1e54, 0x1e56, 0x1e58, 0x1e5a, 0x1e5c,
-    0x1e5e, 0x1e60, 0x1e62, 0x1e64, 0x1e66, 0x1e68, 0x1e6a, 0x1e6c, 0x1e6e,
-    0x1e70, 0x1e72, 0x1e74, 0x1e76, 0x1e78, 0x1e7a, 0x1e7c, 0x1e7e, 0x1e80,
-    0x1e82, 0x1e84, 0x1e86, 0x1e88, 0x1e8a, 0x1e8c, 0x1e8e, 0x1e90, 0x1e92,
-    0x1e94, 0x1e9e, 0x1ea0, 0x1ea2, 0x1ea4, 0x1ea6, 0x1ea8, 0x1eaa, 0x1eac,
-    0x1eae, 0x1eb0, 0x1eb2, 0x1eb4, 0x1eb6, 0x1eb8, 0x1eba, 0x1ebc, 0x1ebe,
-    0x1ec0, 0x1ec2, 0x1ec4, 0x1ec6, 0x1ec8, 0x1eca, 0x1ecc, 0x1ece, 0x1ed0,
-    0x1ed2, 0x1ed4, 0x1ed6, 0x1ed8, 0x1eda, 0x1edc, 0x1ede, 0x1ee0, 0x1ee2,
-    0x1ee4, 0x1ee6, 0x1ee8, 0x1eea, 0x1eec, 0x1eee, 0x1ef0, 0x1ef2, 0x1ef4,
-    0x1ef6, 0x1ef8, 0x1efa, 0x1efc, 0x1efe, 0x1f59, 0x1f5b, 0x1f5d, 0x1f5f,
-    0x2102, 0x2107, 0x2115, 0x2124, 0x2126, 0x2128, 0x213e, 0x213f, 0x2145,
-    0x2183, 0x2c60, 0x2c67, 0x2c69, 0x2c6b, 0x2c72, 0x2c75, 0x2c82, 0x2c84,
-    0x2c86, 0x2c88, 0x2c8a, 0x2c8c, 0x2c8e, 0x2c90, 0x2c92, 0x2c94, 0x2c96,
-    0x2c98, 0x2c9a, 0x2c9c, 0x2c9e, 0x2ca0, 0x2ca2, 0x2ca4, 0x2ca6, 0x2ca8,
-    0x2caa, 0x2cac, 0x2cae, 0x2cb0, 0x2cb2, 0x2cb4, 0x2cb6, 0x2cb8, 0x2cba,
-    0x2cbc, 0x2cbe, 0x2cc0, 0x2cc2, 0x2cc4, 0x2cc6, 0x2cc8, 0x2cca, 0x2ccc,
-    0x2cce, 0x2cd0, 0x2cd2, 0x2cd4, 0x2cd6, 0x2cd8, 0x2cda, 0x2cdc, 0x2cde,
-    0x2ce0, 0x2ce2, 0x2ceb, 0x2ced, 0x2cf2, 0xa640, 0xa642, 0xa644, 0xa646,
-    0xa648, 0xa64a, 0xa64c, 0xa64e, 0xa650, 0xa652, 0xa654, 0xa656, 0xa658,
-    0xa65a, 0xa65c, 0xa65e, 0xa660, 0xa662, 0xa664, 0xa666, 0xa668, 0xa66a,
-    0xa66c, 0xa680, 0xa682, 0xa684, 0xa686, 0xa688, 0xa68a, 0xa68c, 0xa68e,
-    0xa690, 0xa692, 0xa694, 0xa696, 0xa722, 0xa724, 0xa726, 0xa728, 0xa72a,
-    0xa72c, 0xa72e, 0xa732, 0xa734, 0xa736, 0xa738, 0xa73a, 0xa73c, 0xa73e,
-    0xa740, 0xa742, 0xa744, 0xa746, 0xa748, 0xa74a, 0xa74c, 0xa74e, 0xa750,
-    0xa752, 0xa754, 0xa756, 0xa758, 0xa75a, 0xa75c, 0xa75e, 0xa760, 0xa762,
-    0xa764, 0xa766, 0xa768, 0xa76a, 0xa76c, 0xa76e, 0xa779, 0xa77b, 0xa77d,
-    0xa77e, 0xa780, 0xa782, 0xa784, 0xa786, 0xa78b, 0xa78d, 0xa790, 0xa792,
-    0xa7a0, 0xa7a2, 0xa7a4, 0xa7a6, 0xa7a8, 0xa7aa
+    0x24c, 0x24e, 0x370, 0x372, 0x376, 0x37f, 0x386, 0x38c, 0x38e,
+    0x38f, 0x3cf, 0x3d8, 0x3da, 0x3dc, 0x3de, 0x3e0, 0x3e2, 0x3e4,
+    0x3e6, 0x3e8, 0x3ea, 0x3ec, 0x3ee, 0x3f4, 0x3f7, 0x3f9, 0x3fa,
+    0x460, 0x462, 0x464, 0x466, 0x468, 0x46a, 0x46c, 0x46e, 0x470,
+    0x472, 0x474, 0x476, 0x478, 0x47a, 0x47c, 0x47e, 0x480, 0x48a,
+    0x48c, 0x48e, 0x490, 0x492, 0x494, 0x496, 0x498, 0x49a, 0x49c,
+    0x49e, 0x4a0, 0x4a2, 0x4a4, 0x4a6, 0x4a8, 0x4aa, 0x4ac, 0x4ae,
+    0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba, 0x4bc, 0x4be, 0x4c0,
+    0x4c1, 0x4c3, 0x4c5, 0x4c7, 0x4c9, 0x4cb, 0x4cd, 0x4d0, 0x4d2,
+    0x4d4, 0x4d6, 0x4d8, 0x4da, 0x4dc, 0x4de, 0x4e0, 0x4e2, 0x4e4,
+    0x4e6, 0x4e8, 0x4ea, 0x4ec, 0x4ee, 0x4f0, 0x4f2, 0x4f4, 0x4f6,
+    0x4f8, 0x4fa, 0x4fc, 0x4fe, 0x500, 0x502, 0x504, 0x506, 0x508,
+    0x50a, 0x50c, 0x50e, 0x510, 0x512, 0x514, 0x516, 0x518, 0x51a,
+    0x51c, 0x51e, 0x520, 0x522, 0x524, 0x526, 0x528, 0x52a, 0x52c,
+    0x52e, 0x10c7, 0x10cd, 0x1e00, 0x1e02, 0x1e04, 0x1e06, 0x1e08, 0x1e0a,
+    0x1e0c, 0x1e0e, 0x1e10, 0x1e12, 0x1e14, 0x1e16, 0x1e18, 0x1e1a, 0x1e1c,
+    0x1e1e, 0x1e20, 0x1e22, 0x1e24, 0x1e26, 0x1e28, 0x1e2a, 0x1e2c, 0x1e2e,
+    0x1e30, 0x1e32, 0x1e34, 0x1e36, 0x1e38, 0x1e3a, 0x1e3c, 0x1e3e, 0x1e40,
+    0x1e42, 0x1e44, 0x1e46, 0x1e48, 0x1e4a, 0x1e4c, 0x1e4e, 0x1e50, 0x1e52,
+    0x1e54, 0x1e56, 0x1e58, 0x1e5a, 0x1e5c, 0x1e5e, 0x1e60, 0x1e62, 0x1e64,
+    0x1e66, 0x1e68, 0x1e6a, 0x1e6c, 0x1e6e, 0x1e70, 0x1e72, 0x1e74, 0x1e76,
+    0x1e78, 0x1e7a, 0x1e7c, 0x1e7e, 0x1e80, 0x1e82, 0x1e84, 0x1e86, 0x1e88,
+    0x1e8a, 0x1e8c, 0x1e8e, 0x1e90, 0x1e92, 0x1e94, 0x1e9e, 0x1ea0, 0x1ea2,
+    0x1ea4, 0x1ea6, 0x1ea8, 0x1eaa, 0x1eac, 0x1eae, 0x1eb0, 0x1eb2, 0x1eb4,
+    0x1eb6, 0x1eb8, 0x1eba, 0x1ebc, 0x1ebe, 0x1ec0, 0x1ec2, 0x1ec4, 0x1ec6,
+    0x1ec8, 0x1eca, 0x1ecc, 0x1ece, 0x1ed0, 0x1ed2, 0x1ed4, 0x1ed6, 0x1ed8,
+    0x1eda, 0x1edc, 0x1ede, 0x1ee0, 0x1ee2, 0x1ee4, 0x1ee6, 0x1ee8, 0x1eea,
+    0x1eec, 0x1eee, 0x1ef0, 0x1ef2, 0x1ef4, 0x1ef6, 0x1ef8, 0x1efa, 0x1efc,
+    0x1efe, 0x1f59, 0x1f5b, 0x1f5d, 0x1f5f, 0x2102, 0x2107, 0x2115, 0x2124,
+    0x2126, 0x2128, 0x213e, 0x213f, 0x2145, 0x2183, 0x2c60, 0x2c67, 0x2c69,
+    0x2c6b, 0x2c72, 0x2c75, 0x2c82, 0x2c84, 0x2c86, 0x2c88, 0x2c8a, 0x2c8c,
+    0x2c8e, 0x2c90, 0x2c92, 0x2c94, 0x2c96, 0x2c98, 0x2c9a, 0x2c9c, 0x2c9e,
+    0x2ca0, 0x2ca2, 0x2ca4, 0x2ca6, 0x2ca8, 0x2caa, 0x2cac, 0x2cae, 0x2cb0,
+    0x2cb2, 0x2cb4, 0x2cb6, 0x2cb8, 0x2cba, 0x2cbc, 0x2cbe, 0x2cc0, 0x2cc2,
+    0x2cc4, 0x2cc6, 0x2cc8, 0x2cca, 0x2ccc, 0x2cce, 0x2cd0, 0x2cd2, 0x2cd4,
+    0x2cd6, 0x2cd8, 0x2cda, 0x2cdc, 0x2cde, 0x2ce0, 0x2ce2, 0x2ceb, 0x2ced,
+    0x2cf2, 0xa640, 0xa642, 0xa644, 0xa646, 0xa648, 0xa64a, 0xa64c, 0xa64e,
+    0xa650, 0xa652, 0xa654, 0xa656, 0xa658, 0xa65a, 0xa65c, 0xa65e, 0xa660,
+    0xa662, 0xa664, 0xa666, 0xa668, 0xa66a, 0xa66c, 0xa680, 0xa682, 0xa684,
+    0xa686, 0xa688, 0xa68a, 0xa68c, 0xa68e, 0xa690, 0xa692, 0xa694, 0xa696,
+    0xa698, 0xa69a, 0xa722, 0xa724, 0xa726, 0xa728, 0xa72a, 0xa72c, 0xa72e,
+    0xa732, 0xa734, 0xa736, 0xa738, 0xa73a, 0xa73c, 0xa73e, 0xa740, 0xa742,
+    0xa744, 0xa746, 0xa748, 0xa74a, 0xa74c, 0xa74e, 0xa750, 0xa752, 0xa754,
+    0xa756, 0xa758, 0xa75a, 0xa75c, 0xa75e, 0xa760, 0xa762, 0xa764, 0xa766,
+    0xa768, 0xa76a, 0xa76c, 0xa76e, 0xa779, 0xa77b, 0xa77d, 0xa77e, 0xa780,
+    0xa782, 0xa784, 0xa786, 0xa78b, 0xa78d, 0xa790, 0xa792, 0xa796, 0xa798,
+    0xa79a, 0xa79c, 0xa79e, 0xa7a0, 0xa7a2, 0xa7a4, 0xa7a6, 0xa7a8, 0xa7b0,
+    0xa7b1
 #if TCL_UTF_MAX > 4
     ,0x1d49c, 0x1d49e, 0x1d49f, 0x1d4a2, 0x1d4a5, 0x1d4a6, 0x1d504, 0x1d505, 0x1d538,
     0x1d539, 0x1d546, 0x1d7ca
@@ -567,34 +595,34 @@ static const chr upperCharTable[] = {
  */
 
 static const crange graphRangeTable[] = {
-    {0x21, 0x7e}, {0xa1, 0xac}, {0xae, 0x377}, {0x37a, 0x37e},
-    {0x384, 0x38a}, {0x38e, 0x3a1}, {0x3a3, 0x527}, {0x531, 0x556},
-    {0x559, 0x55f}, {0x561, 0x587}, {0x591, 0x5c7}, {0x5d0, 0x5ea},
-    {0x5f0, 0x5f4}, {0x606, 0x61b}, {0x61e, 0x6dc}, {0x6de, 0x70d},
-    {0x710, 0x74a}, {0x74d, 0x7b1}, {0x7c0, 0x7fa}, {0x800, 0x82d},
-    {0x830, 0x83e}, {0x840, 0x85b}, {0x8a2, 0x8ac}, {0x8e4, 0x8fe},
-    {0x900, 0x977}, {0x979, 0x97f}, {0x981, 0x983}, {0x985, 0x98c},
-    {0x993, 0x9a8}, {0x9aa, 0x9b0}, {0x9b6, 0x9b9}, {0x9bc, 0x9c4},
-    {0x9cb, 0x9ce}, {0x9df, 0x9e3}, {0x9e6, 0x9fb}, {0xa01, 0xa03},
-    {0xa05, 0xa0a}, {0xa13, 0xa28}, {0xa2a, 0xa30}, {0xa3e, 0xa42},
-    {0xa4b, 0xa4d}, {0xa59, 0xa5c}, {0xa66, 0xa75}, {0xa81, 0xa83},
-    {0xa85, 0xa8d}, {0xa8f, 0xa91}, {0xa93, 0xaa8}, {0xaaa, 0xab0},
-    {0xab5, 0xab9}, {0xabc, 0xac5}, {0xac7, 0xac9}, {0xacb, 0xacd},
-    {0xae0, 0xae3}, {0xae6, 0xaf1}, {0xb01, 0xb03}, {0xb05, 0xb0c},
-    {0xb13, 0xb28}, {0xb2a, 0xb30}, {0xb35, 0xb39}, {0xb3c, 0xb44},
-    {0xb4b, 0xb4d}, {0xb5f, 0xb63}, {0xb66, 0xb77}, {0xb85, 0xb8a},
-    {0xb8e, 0xb90}, {0xb92, 0xb95}, {0xba8, 0xbaa}, {0xbae, 0xbb9},
-    {0xbbe, 0xbc2}, {0xbc6, 0xbc8}, {0xbca, 0xbcd}, {0xbe6, 0xbfa},
-    {0xc01, 0xc03}, {0xc05, 0xc0c}, {0xc0e, 0xc10}, {0xc12, 0xc28},
-    {0xc2a, 0xc33}, {0xc35, 0xc39}, {0xc3d, 0xc44}, {0xc46, 0xc48},
-    {0xc4a, 0xc4d}, {0xc60, 0xc63}, {0xc66, 0xc6f}, {0xc78, 0xc7f},
-    {0xc85, 0xc8c}, {0xc8e, 0xc90}, {0xc92, 0xca8}, {0xcaa, 0xcb3},
-    {0xcb5, 0xcb9}, {0xcbc, 0xcc4}, {0xcc6, 0xcc8}, {0xcca, 0xccd},
-    {0xce0, 0xce3}, {0xce6, 0xcef}, {0xd05, 0xd0c}, {0xd0e, 0xd10},
-    {0xd12, 0xd3a}, {0xd3d, 0xd44}, {0xd46, 0xd48}, {0xd4a, 0xd4e},
-    {0xd60, 0xd63}, {0xd66, 0xd75}, {0xd79, 0xd7f}, {0xd85, 0xd96},
-    {0xd9a, 0xdb1}, {0xdb3, 0xdbb}, {0xdc0, 0xdc6}, {0xdcf, 0xdd4},
-    {0xdd8, 0xddf}, {0xdf2, 0xdf4}, {0xe01, 0xe3a}, {0xe3f, 0xe5b},
+    {0x21, 0x7e}, {0xa1, 0xac}, {0xae, 0x377}, {0x37a, 0x37f},
+    {0x384, 0x38a}, {0x38e, 0x3a1}, {0x3a3, 0x52f}, {0x531, 0x556},
+    {0x559, 0x55f}, {0x561, 0x587}, {0x58d, 0x58f}, {0x591, 0x5c7},
+    {0x5d0, 0x5ea}, {0x5f0, 0x5f4}, {0x606, 0x61b}, {0x61e, 0x6dc},
+    {0x6de, 0x70d}, {0x710, 0x74a}, {0x74d, 0x7b1}, {0x7c0, 0x7fa},
+    {0x800, 0x82d}, {0x830, 0x83e}, {0x840, 0x85b}, {0x8a0, 0x8b2},
+    {0x8e4, 0x983}, {0x985, 0x98c}, {0x993, 0x9a8}, {0x9aa, 0x9b0},
+    {0x9b6, 0x9b9}, {0x9bc, 0x9c4}, {0x9cb, 0x9ce}, {0x9df, 0x9e3},
+    {0x9e6, 0x9fb}, {0xa01, 0xa03}, {0xa05, 0xa0a}, {0xa13, 0xa28},
+    {0xa2a, 0xa30}, {0xa3e, 0xa42}, {0xa4b, 0xa4d}, {0xa59, 0xa5c},
+    {0xa66, 0xa75}, {0xa81, 0xa83}, {0xa85, 0xa8d}, {0xa8f, 0xa91},
+    {0xa93, 0xaa8}, {0xaaa, 0xab0}, {0xab5, 0xab9}, {0xabc, 0xac5},
+    {0xac7, 0xac9}, {0xacb, 0xacd}, {0xae0, 0xae3}, {0xae6, 0xaf1},
+    {0xb01, 0xb03}, {0xb05, 0xb0c}, {0xb13, 0xb28}, {0xb2a, 0xb30},
+    {0xb35, 0xb39}, {0xb3c, 0xb44}, {0xb4b, 0xb4d}, {0xb5f, 0xb63},
+    {0xb66, 0xb77}, {0xb85, 0xb8a}, {0xb8e, 0xb90}, {0xb92, 0xb95},
+    {0xba8, 0xbaa}, {0xbae, 0xbb9}, {0xbbe, 0xbc2}, {0xbc6, 0xbc8},
+    {0xbca, 0xbcd}, {0xbe6, 0xbfa}, {0xc00, 0xc03}, {0xc05, 0xc0c},
+    {0xc0e, 0xc10}, {0xc12, 0xc28}, {0xc2a, 0xc39}, {0xc3d, 0xc44},
+    {0xc46, 0xc48}, {0xc4a, 0xc4d}, {0xc60, 0xc63}, {0xc66, 0xc6f},
+    {0xc78, 0xc7f}, {0xc81, 0xc83}, {0xc85, 0xc8c}, {0xc8e, 0xc90},
+    {0xc92, 0xca8}, {0xcaa, 0xcb3}, {0xcb5, 0xcb9}, {0xcbc, 0xcc4},
+    {0xcc6, 0xcc8}, {0xcca, 0xccd}, {0xce0, 0xce3}, {0xce6, 0xcef},
+    {0xd01, 0xd03}, {0xd05, 0xd0c}, {0xd0e, 0xd10}, {0xd12, 0xd3a},
+    {0xd3d, 0xd44}, {0xd46, 0xd48}, {0xd4a, 0xd4e}, {0xd60, 0xd63},
+    {0xd66, 0xd75}, {0xd79, 0xd7f}, {0xd85, 0xd96}, {0xd9a, 0xdb1},
+    {0xdb3, 0xdbb}, {0xdc0, 0xdc6}, {0xdcf, 0xdd4}, {0xdd8, 0xddf},
+    {0xde6, 0xdef}, {0xdf2, 0xdf4}, {0xe01, 0xe3a}, {0xe3f, 0xe5b},
     {0xe94, 0xe97}, {0xe99, 0xe9f}, {0xea1, 0xea3}, {0xead, 0xeb9},
     {0xebb, 0xebd}, {0xec0, 0xec4}, {0xec8, 0xecd}, {0xed0, 0xed9},
     {0xedc, 0xedf}, {0xf00, 0xf47}, {0xf49, 0xf6c}, {0xf71, 0xf97},
@@ -603,105 +631,123 @@ static const crange graphRangeTable[] = {
     {0x1260, 0x1288}, {0x128a, 0x128d}, {0x1290, 0x12b0}, {0x12b2, 0x12b5},
     {0x12b8, 0x12be}, {0x12c2, 0x12c5}, {0x12c8, 0x12d6}, {0x12d8, 0x1310},
     {0x1312, 0x1315}, {0x1318, 0x135a}, {0x135d, 0x137c}, {0x1380, 0x1399},
-    {0x13a0, 0x13f4}, {0x1400, 0x167f}, {0x1681, 0x169c}, {0x16a0, 0x16f0},
+    {0x13a0, 0x13f4}, {0x1400, 0x167f}, {0x1681, 0x169c}, {0x16a0, 0x16f8},
     {0x1700, 0x170c}, {0x170e, 0x1714}, {0x1720, 0x1736}, {0x1740, 0x1753},
     {0x1760, 0x176c}, {0x176e, 0x1770}, {0x1780, 0x17dd}, {0x17e0, 0x17e9},
     {0x17f0, 0x17f9}, {0x1800, 0x180d}, {0x1810, 0x1819}, {0x1820, 0x1877},
-    {0x1880, 0x18aa}, {0x18b0, 0x18f5}, {0x1900, 0x191c}, {0x1920, 0x192b},
+    {0x1880, 0x18aa}, {0x18b0, 0x18f5}, {0x1900, 0x191e}, {0x1920, 0x192b},
     {0x1930, 0x193b}, {0x1944, 0x196d}, {0x1970, 0x1974}, {0x1980, 0x19ab},
     {0x19b0, 0x19c9}, {0x19d0, 0x19da}, {0x19de, 0x1a1b}, {0x1a1e, 0x1a5e},
     {0x1a60, 0x1a7c}, {0x1a7f, 0x1a89}, {0x1a90, 0x1a99}, {0x1aa0, 0x1aad},
-    {0x1b00, 0x1b4b}, {0x1b50, 0x1b7c}, {0x1b80, 0x1bf3}, {0x1bfc, 0x1c37},
-    {0x1c3b, 0x1c49}, {0x1c4d, 0x1c7f}, {0x1cc0, 0x1cc7}, {0x1cd0, 0x1cf6},
-    {0x1d00, 0x1de6}, {0x1dfc, 0x1f15}, {0x1f18, 0x1f1d}, {0x1f20, 0x1f45},
-    {0x1f48, 0x1f4d}, {0x1f50, 0x1f57}, {0x1f5f, 0x1f7d}, {0x1f80, 0x1fb4},
-    {0x1fb6, 0x1fc4}, {0x1fc6, 0x1fd3}, {0x1fd6, 0x1fdb}, {0x1fdd, 0x1fef},
-    {0x1ff2, 0x1ff4}, {0x1ff6, 0x1ffe}, {0x2010, 0x2027}, {0x2030, 0x205e},
-    {0x2074, 0x208e}, {0x2090, 0x209c}, {0x20a0, 0x20ba}, {0x20d0, 0x20f0},
-    {0x2100, 0x2189}, {0x2190, 0x23f3}, {0x2400, 0x2426}, {0x2440, 0x244a},
-    {0x2460, 0x26ff}, {0x2701, 0x2b4c}, {0x2b50, 0x2b59}, {0x2c00, 0x2c2e},
-    {0x2c30, 0x2c5e}, {0x2c60, 0x2cf3}, {0x2cf9, 0x2d25}, {0x2d30, 0x2d67},
-    {0x2d7f, 0x2d96}, {0x2da0, 0x2da6}, {0x2da8, 0x2dae}, {0x2db0, 0x2db6},
-    {0x2db8, 0x2dbe}, {0x2dc0, 0x2dc6}, {0x2dc8, 0x2dce}, {0x2dd0, 0x2dd6},
-    {0x2dd8, 0x2dde}, {0x2de0, 0x2e3b}, {0x2e80, 0x2e99}, {0x2e9b, 0x2ef3},
-    {0x2f00, 0x2fd5}, {0x2ff0, 0x2ffb}, {0x3001, 0x303f}, {0x3041, 0x3096},
-    {0x3099, 0x30ff}, {0x3105, 0x312d}, {0x3131, 0x318e}, {0x3190, 0x31ba},
-    {0x31c0, 0x31e3}, {0x31f0, 0x321e}, {0x3220, 0x32fe}, {0x3300, 0x4db5},
-    {0x4dc0, 0x9fcc}, {0xa000, 0xa48c}, {0xa490, 0xa4c6}, {0xa4d0, 0xa62b},
-    {0xa640, 0xa697}, {0xa69f, 0xa6f7}, {0xa700, 0xa78e}, {0xa790, 0xa793},
-    {0xa7a0, 0xa7aa}, {0xa7f8, 0xa82b}, {0xa830, 0xa839}, {0xa840, 0xa877},
-    {0xa880, 0xa8c4}, {0xa8ce, 0xa8d9}, {0xa8e0, 0xa8fb}, {0xa900, 0xa953},
-    {0xa95f, 0xa97c}, {0xa980, 0xa9cd}, {0xa9cf, 0xa9d9}, {0xaa00, 0xaa36},
-    {0xaa40, 0xaa4d}, {0xaa50, 0xaa59}, {0xaa5c, 0xaa7b}, {0xaa80, 0xaac2},
-    {0xaadb, 0xaaf6}, {0xab01, 0xab06}, {0xab09, 0xab0e}, {0xab11, 0xab16},
-    {0xab20, 0xab26}, {0xab28, 0xab2e}, {0xabc0, 0xabed}, {0xabf0, 0xabf9},
-    {0xac00, 0xd7a3}, {0xd7b0, 0xd7c6}, {0xd7cb, 0xd7fb}, {0xf900, 0xfa6d},
-    {0xfa70, 0xfad9}, {0xfb00, 0xfb06}, {0xfb13, 0xfb17}, {0xfb1d, 0xfb36},
-    {0xfb38, 0xfb3c}, {0xfb46, 0xfbc1}, {0xfbd3, 0xfd3f}, {0xfd50, 0xfd8f},
-    {0xfd92, 0xfdc7}, {0xfdf0, 0xfdfd}, {0xfe00, 0xfe19}, {0xfe20, 0xfe26},
-    {0xfe30, 0xfe52}, {0xfe54, 0xfe66}, {0xfe68, 0xfe6b}, {0xfe70, 0xfe74},
-    {0xfe76, 0xfefc}, {0xff01, 0xffbe}, {0xffc2, 0xffc7}, {0xffca, 0xffcf},
-    {0xffd2, 0xffd7}, {0xffda, 0xffdc}, {0xffe0, 0xffe6}, {0xffe8, 0xffee}
+    {0x1ab0, 0x1abe}, {0x1b00, 0x1b4b}, {0x1b50, 0x1b7c}, {0x1b80, 0x1bf3},
+    {0x1bfc, 0x1c37}, {0x1c3b, 0x1c49}, {0x1c4d, 0x1c7f}, {0x1cc0, 0x1cc7},
+    {0x1cd0, 0x1cf6}, {0x1d00, 0x1df5}, {0x1dfc, 0x1f15}, {0x1f18, 0x1f1d},
+    {0x1f20, 0x1f45}, {0x1f48, 0x1f4d}, {0x1f50, 0x1f57}, {0x1f5f, 0x1f7d},
+    {0x1f80, 0x1fb4}, {0x1fb6, 0x1fc4}, {0x1fc6, 0x1fd3}, {0x1fd6, 0x1fdb},
+    {0x1fdd, 0x1fef}, {0x1ff2, 0x1ff4}, {0x1ff6, 0x1ffe}, {0x2010, 0x2027},
+    {0x2030, 0x205e}, {0x2074, 0x208e}, {0x2090, 0x209c}, {0x20a0, 0x20bd},
+    {0x20d0, 0x20f0}, {0x2100, 0x2189}, {0x2190, 0x23fa}, {0x2400, 0x2426},
+    {0x2440, 0x244a}, {0x2460, 0x2b73}, {0x2b76, 0x2b95}, {0x2b98, 0x2bb9},
+    {0x2bbd, 0x2bc8}, {0x2bca, 0x2bd1}, {0x2c00, 0x2c2e}, {0x2c30, 0x2c5e},
+    {0x2c60, 0x2cf3}, {0x2cf9, 0x2d25}, {0x2d30, 0x2d67}, {0x2d7f, 0x2d96},
+    {0x2da0, 0x2da6}, {0x2da8, 0x2dae}, {0x2db0, 0x2db6}, {0x2db8, 0x2dbe},
+    {0x2dc0, 0x2dc6}, {0x2dc8, 0x2dce}, {0x2dd0, 0x2dd6}, {0x2dd8, 0x2dde},
+    {0x2de0, 0x2e42}, {0x2e80, 0x2e99}, {0x2e9b, 0x2ef3}, {0x2f00, 0x2fd5},
+    {0x2ff0, 0x2ffb}, {0x3001, 0x303f}, {0x3041, 0x3096}, {0x3099, 0x30ff},
+    {0x3105, 0x312d}, {0x3131, 0x318e}, {0x3190, 0x31ba}, {0x31c0, 0x31e3},
+    {0x31f0, 0x321e}, {0x3220, 0x32fe}, {0x3300, 0x4db5}, {0x4dc0, 0x9fcc},
+    {0xa000, 0xa48c}, {0xa490, 0xa4c6}, {0xa4d0, 0xa62b}, {0xa640, 0xa69d},
+    {0xa69f, 0xa6f7}, {0xa700, 0xa78e}, {0xa790, 0xa7ad}, {0xa7f7, 0xa82b},
+    {0xa830, 0xa839}, {0xa840, 0xa877}, {0xa880, 0xa8c4}, {0xa8ce, 0xa8d9},
+    {0xa8e0, 0xa8fb}, {0xa900, 0xa953}, {0xa95f, 0xa97c}, {0xa980, 0xa9cd},
+    {0xa9cf, 0xa9d9}, {0xa9de, 0xa9fe}, {0xaa00, 0xaa36}, {0xaa40, 0xaa4d},
+    {0xaa50, 0xaa59}, {0xaa5c, 0xaac2}, {0xaadb, 0xaaf6}, {0xab01, 0xab06},
+    {0xab09, 0xab0e}, {0xab11, 0xab16}, {0xab20, 0xab26}, {0xab28, 0xab2e},
+    {0xab30, 0xab5f}, {0xabc0, 0xabed}, {0xabf0, 0xabf9}, {0xac00, 0xd7a3},
+    {0xd7b0, 0xd7c6}, {0xd7cb, 0xd7fb}, {0xdc00, 0xdc3e}, {0xdc40, 0xdc7e},
+    {0xdc80, 0xdcbe}, {0xdcc0, 0xdcfe}, {0xdd80, 0xddbe}, {0xddc0, 0xddfe},
+    {0xde80, 0xdebe}, {0xdec0, 0xdefe}, {0xdf00, 0xdf3e}, {0xdf40, 0xdf7e},
+    {0xf900, 0xfa6d}, {0xfa70, 0xfad9}, {0xfb00, 0xfb06}, {0xfb13, 0xfb17},
+    {0xfb1d, 0xfb36}, {0xfb38, 0xfb3c}, {0xfb46, 0xfbc1}, {0xfbd3, 0xfd3f},
+    {0xfd50, 0xfd8f}, {0xfd92, 0xfdc7}, {0xfdf0, 0xfdfd}, {0xfe00, 0xfe19},
+    {0xfe20, 0xfe2d}, {0xfe30, 0xfe52}, {0xfe54, 0xfe66}, {0xfe68, 0xfe6b},
+    {0xfe70, 0xfe74}, {0xfe76, 0xfefc}, {0xff01, 0xffbe}, {0xffc2, 0xffc7},
+    {0xffca, 0xffcf}, {0xffd2, 0xffd7}, {0xffda, 0xffdc}, {0xffe0, 0xffe6},
+    {0xffe8, 0xffee}
 #if TCL_UTF_MAX > 4
     ,{0x10000, 0x1000b}, {0x1000d, 0x10026}, {0x10028, 0x1003a}, {0x1003f, 0x1004d},
     {0x10050, 0x1005d}, {0x10080, 0x100fa}, {0x10100, 0x10102}, {0x10107, 0x10133},
-    {0x10137, 0x1018a}, {0x10190, 0x1019b}, {0x101d0, 0x101fd}, {0x10280, 0x1029c},
-    {0x102a0, 0x102d0}, {0x10300, 0x1031e}, {0x10320, 0x10323}, {0x10330, 0x1034a},
-    {0x10380, 0x1039d}, {0x1039f, 0x103c3}, {0x103c8, 0x103d5}, {0x10400, 0x1049d},
-    {0x104a0, 0x104a9}, {0x10800, 0x10805}, {0x1080a, 0x10835}, {0x1083f, 0x10855},
-    {0x10857, 0x1085f}, {0x10900, 0x1091b}, {0x1091f, 0x10939}, {0x10980, 0x109b7},
-    {0x10a00, 0x10a03}, {0x10a0c, 0x10a13}, {0x10a15, 0x10a17}, {0x10a19, 0x10a33},
-    {0x10a38, 0x10a3a}, {0x10a3f, 0x10a47}, {0x10a50, 0x10a58}, {0x10a60, 0x10a7f},
-    {0x10b00, 0x10b35}, {0x10b39, 0x10b55}, {0x10b58, 0x10b72}, {0x10b78, 0x10b7f},
-    {0x10c00, 0x10c48}, {0x10e60, 0x10e7e}, {0x11000, 0x1104d}, {0x11052, 0x1106f},
-    {0x11080, 0x110bc}, {0x110be, 0x110c1}, {0x110d0, 0x110e8}, {0x110f0, 0x110f9},
-    {0x11100, 0x11134}, {0x11136, 0x11143}, {0x11180, 0x111c8}, {0x111d0, 0x111d9},
-    {0x11680, 0x116b7}, {0x116c0, 0x116c9}, {0x12000, 0x1236e}, {0x12400, 0x12462},
-    {0x12470, 0x12473}, {0x13000, 0x1342e}, {0x16800, 0x16a38}, {0x16f00, 0x16f44},
-    {0x16f50, 0x16f7e}, {0x16f8f, 0x16f9f}, {0x1d000, 0x1d0f5}, {0x1d100, 0x1d126},
-    {0x1d129, 0x1d172}, {0x1d17b, 0x1d1dd}, {0x1d200, 0x1d245}, {0x1d300, 0x1d356},
-    {0x1d360, 0x1d371}, {0x1d400, 0x1d454}, {0x1d456, 0x1d49c}, {0x1d4a9, 0x1d4ac},
-    {0x1d4ae, 0x1d4b9}, {0x1d4bd, 0x1d4c3}, {0x1d4c5, 0x1d505}, {0x1d507, 0x1d50a},
-    {0x1d50d, 0x1d514}, {0x1d516, 0x1d51c}, {0x1d51e, 0x1d539}, {0x1d53b, 0x1d53e},
-    {0x1d540, 0x1d544}, {0x1d54a, 0x1d550}, {0x1d552, 0x1d6a5}, {0x1d6a8, 0x1d7cb},
-    {0x1d7ce, 0x1d7ff}, {0x1ee00, 0x1ee03}, {0x1ee05, 0x1ee1f}, {0x1ee29, 0x1ee32},
-    {0x1ee34, 0x1ee37}, {0x1ee4d, 0x1ee4f}, {0x1ee67, 0x1ee6a}, {0x1ee6c, 0x1ee72},
-    {0x1ee74, 0x1ee77}, {0x1ee79, 0x1ee7c}, {0x1ee80, 0x1ee89}, {0x1ee8b, 0x1ee9b},
-    {0x1eea1, 0x1eea3}, {0x1eea5, 0x1eea9}, {0x1eeab, 0x1eebb}, {0x1f000, 0x1f02b},
-    {0x1f030, 0x1f093}, {0x1f0a0, 0x1f0ae}, {0x1f0b1, 0x1f0be}, {0x1f0c1, 0x1f0cf},
-    {0x1f0d1, 0x1f0df}, {0x1f100, 0x1f10a}, {0x1f110, 0x1f12e}, {0x1f130, 0x1f16b},
-    {0x1f170, 0x1f19a}, {0x1f1e6, 0x1f202}, {0x1f210, 0x1f23a}, {0x1f240, 0x1f248},
-    {0x1f300, 0x1f320}, {0x1f330, 0x1f335}, {0x1f337, 0x1f37c}, {0x1f380, 0x1f393},
-    {0x1f3a0, 0x1f3c4}, {0x1f3c6, 0x1f3ca}, {0x1f3e0, 0x1f3f0}, {0x1f400, 0x1f43e},
-    {0x1f442, 0x1f4f7}, {0x1f4f9, 0x1f4fc}, {0x1f500, 0x1f53d}, {0x1f540, 0x1f543},
-    {0x1f550, 0x1f567}, {0x1f5fb, 0x1f640}, {0x1f645, 0x1f64f}, {0x1f680, 0x1f6c5},
-    {0x1f700, 0x1f773}, {0x20000, 0x2a6d6}, {0x2a700, 0x2b734}, {0x2b740, 0x2b81d},
-    {0x2f800, 0x2fa1d}, {0xe0100, 0xe01ef}
+    {0x10137, 0x1018c}, {0x10190, 0x1019b}, {0x101d0, 0x101fd}, {0x10280, 0x1029c},
+    {0x102a0, 0x102d0}, {0x102e0, 0x102fb}, {0x10300, 0x10323}, {0x10330, 0x1034a},
+    {0x10350, 0x1037a}, {0x10380, 0x1039d}, {0x1039f, 0x103c3}, {0x103c8, 0x103d5},
+    {0x10400, 0x1049d}, {0x104a0, 0x104a9}, {0x10500, 0x10527}, {0x10530, 0x10563},
+    {0x10600, 0x10736}, {0x10740, 0x10755}, {0x10760, 0x10767}, {0x10800, 0x10805},
+    {0x1080a, 0x10835}, {0x1083f, 0x10855}, {0x10857, 0x1089e}, {0x108a7, 0x108af},
+    {0x10900, 0x1091b}, {0x1091f, 0x10939}, {0x10980, 0x109b7}, {0x10a00, 0x10a03},
+    {0x10a0c, 0x10a13}, {0x10a15, 0x10a17}, {0x10a19, 0x10a33}, {0x10a38, 0x10a3a},
+    {0x10a3f, 0x10a47}, {0x10a50, 0x10a58}, {0x10a60, 0x10a9f}, {0x10ac0, 0x10ae6},
+    {0x10aeb, 0x10af6}, {0x10b00, 0x10b35}, {0x10b39, 0x10b55}, {0x10b58, 0x10b72},
+    {0x10b78, 0x10b91}, {0x10b99, 0x10b9c}, {0x10ba9, 0x10baf}, {0x10c00, 0x10c48},
+    {0x10e60, 0x10e7e}, {0x11000, 0x1104d}, {0x11052, 0x1106f}, {0x1107f, 0x110bc},
+    {0x110be, 0x110c1}, {0x110d0, 0x110e8}, {0x110f0, 0x110f9}, {0x11100, 0x11134},
+    {0x11136, 0x11143}, {0x11150, 0x11176}, {0x11180, 0x111c8}, {0x111d0, 0x111da},
+    {0x111e1, 0x111f4}, {0x11200, 0x11211}, {0x11213, 0x1123d}, {0x112b0, 0x112ea},
+    {0x112f0, 0x112f9}, {0x11301, 0x11303}, {0x11305, 0x1130c}, {0x11313, 0x11328},
+    {0x1132a, 0x11330}, {0x11335, 0x11339}, {0x1133c, 0x11344}, {0x1134b, 0x1134d},
+    {0x1135d, 0x11363}, {0x11366, 0x1136c}, {0x11370, 0x11374}, {0x11480, 0x114c7},
+    {0x114d0, 0x114d9}, {0x11580, 0x115b5}, {0x115b8, 0x115c9}, {0x11600, 0x11644},
+    {0x11650, 0x11659}, {0x11680, 0x116b7}, {0x116c0, 0x116c9}, {0x118a0, 0x118f2},
+    {0x11ac0, 0x11af8}, {0x12000, 0x12398}, {0x12400, 0x1246e}, {0x12470, 0x12474},
+    {0x13000, 0x1342e}, {0x16800, 0x16a38}, {0x16a40, 0x16a5e}, {0x16a60, 0x16a69},
+    {0x16ad0, 0x16aed}, {0x16af0, 0x16af5}, {0x16b00, 0x16b45}, {0x16b50, 0x16b59},
+    {0x16b5b, 0x16b61}, {0x16b63, 0x16b77}, {0x16b7d, 0x16b8f}, {0x16f00, 0x16f44},
+    {0x16f50, 0x16f7e}, {0x16f8f, 0x16f9f}, {0x1bc00, 0x1bc6a}, {0x1bc70, 0x1bc7c},
+    {0x1bc80, 0x1bc88}, {0x1bc90, 0x1bc99}, {0x1bc9c, 0x1bc9f}, {0x1d000, 0x1d0f5},
+    {0x1d100, 0x1d126}, {0x1d129, 0x1d172}, {0x1d17b, 0x1d1dd}, {0x1d200, 0x1d245},
+    {0x1d300, 0x1d356}, {0x1d360, 0x1d371}, {0x1d400, 0x1d454}, {0x1d456, 0x1d49c},
+    {0x1d4a9, 0x1d4ac}, {0x1d4ae, 0x1d4b9}, {0x1d4bd, 0x1d4c3}, {0x1d4c5, 0x1d505},
+    {0x1d507, 0x1d50a}, {0x1d50d, 0x1d514}, {0x1d516, 0x1d51c}, {0x1d51e, 0x1d539},
+    {0x1d53b, 0x1d53e}, {0x1d540, 0x1d544}, {0x1d54a, 0x1d550}, {0x1d552, 0x1d6a5},
+    {0x1d6a8, 0x1d7cb}, {0x1d7ce, 0x1d7ff}, {0x1e800, 0x1e8c4}, {0x1e8c7, 0x1e8d6},
+    {0x1ee00, 0x1ee03}, {0x1ee05, 0x1ee1f}, {0x1ee29, 0x1ee32}, {0x1ee34, 0x1ee37},
+    {0x1ee4d, 0x1ee4f}, {0x1ee67, 0x1ee6a}, {0x1ee6c, 0x1ee72}, {0x1ee74, 0x1ee77},
+    {0x1ee79, 0x1ee7c}, {0x1ee80, 0x1ee89}, {0x1ee8b, 0x1ee9b}, {0x1eea1, 0x1eea3},
+    {0x1eea5, 0x1eea9}, {0x1eeab, 0x1eebb}, {0x1f000, 0x1f02b}, {0x1f030, 0x1f093},
+    {0x1f0a0, 0x1f0ae}, {0x1f0b1, 0x1f0bf}, {0x1f0c1, 0x1f0cf}, {0x1f0d1, 0x1f0f5},
+    {0x1f100, 0x1f10c}, {0x1f110, 0x1f12e}, {0x1f130, 0x1f16b}, {0x1f170, 0x1f19a},
+    {0x1f1e6, 0x1f202}, {0x1f210, 0x1f23a}, {0x1f240, 0x1f248}, {0x1f300, 0x1f32c},
+    {0x1f330, 0x1f37d}, {0x1f380, 0x1f3ce}, {0x1f3d4, 0x1f3f7}, {0x1f400, 0x1f4fe},
+    {0x1f500, 0x1f54a}, {0x1f550, 0x1f579}, {0x1f57b, 0x1f5a3}, {0x1f5a5, 0x1f642},
+    {0x1f645, 0x1f6cf}, {0x1f6e0, 0x1f6ec}, {0x1f6f0, 0x1f6f3}, {0x1f700, 0x1f773},
+    {0x1f780, 0x1f7d4}, {0x1f800, 0x1f80b}, {0x1f810, 0x1f847}, {0x1f850, 0x1f859},
+    {0x1f860, 0x1f887}, {0x1f890, 0x1f8ad}, {0x20000, 0x2a6d6}, {0x2a700, 0x2b734},
+    {0x2b740, 0x2b81d}, {0x2f800, 0x2fa1d}, {0xe0100, 0xe01ef}
 #endif
 };
 
 #define NUM_GRAPH_RANGE (sizeof(graphRangeTable)/sizeof(crange))
 
 static const chr graphCharTable[] = {
-    0x38c, 0x589, 0x58a, 0x58f, 0x85e, 0x8a0, 0x98f, 0x990, 0x9b2,
-    0x9c7, 0x9c8, 0x9d7, 0x9dc, 0x9dd, 0xa0f, 0xa10, 0xa32, 0xa33,
-    0xa35, 0xa36, 0xa38, 0xa39, 0xa3c, 0xa47, 0xa48, 0xa51, 0xa5e,
-    0xab2, 0xab3, 0xad0, 0xb0f, 0xb10, 0xb32, 0xb33, 0xb47, 0xb48,
-    0xb56, 0xb57, 0xb5c, 0xb5d, 0xb82, 0xb83, 0xb99, 0xb9a, 0xb9c,
-    0xb9e, 0xb9f, 0xba3, 0xba4, 0xbd0, 0xbd7, 0xc55, 0xc56, 0xc58,
-    0xc59, 0xc82, 0xc83, 0xcd5, 0xcd6, 0xcde, 0xcf1, 0xcf2, 0xd02,
-    0xd03, 0xd57, 0xd82, 0xd83, 0xdbd, 0xdca, 0xdd6, 0xe81, 0xe82,
-    0xe84, 0xe87, 0xe88, 0xe8a, 0xe8d, 0xea5, 0xea7, 0xeaa, 0xeab,
-    0xec6, 0x10c7, 0x10cd, 0x1258, 0x12c0, 0x1772, 0x1773, 0x1940, 0x1f59,
-    0x1f5b, 0x1f5d, 0x2070, 0x2071, 0x2d27, 0x2d2d, 0x2d6f, 0x2d70, 0xa9de,
-    0xa9df, 0xfb3e, 0xfb40, 0xfb41, 0xfb43, 0xfb44, 0xfffc, 0xfffd
+    0x38c, 0x589, 0x58a, 0x85e, 0x98f, 0x990, 0x9b2, 0x9c7, 0x9c8,
+    0x9d7, 0x9dc, 0x9dd, 0xa0f, 0xa10, 0xa32, 0xa33, 0xa35, 0xa36,
+    0xa38, 0xa39, 0xa3c, 0xa47, 0xa48, 0xa51, 0xa5e, 0xab2, 0xab3,
+    0xad0, 0xb0f, 0xb10, 0xb32, 0xb33, 0xb47, 0xb48, 0xb56, 0xb57,
+    0xb5c, 0xb5d, 0xb82, 0xb83, 0xb99, 0xb9a, 0xb9c, 0xb9e, 0xb9f,
+    0xba3, 0xba4, 0xbd0, 0xbd7, 0xc55, 0xc56, 0xc58, 0xc59, 0xcd5,
+    0xcd6, 0xcde, 0xcf1, 0xcf2, 0xd57, 0xd82, 0xd83, 0xdbd, 0xdca,
+    0xdd6, 0xe81, 0xe82, 0xe84, 0xe87, 0xe88, 0xe8a, 0xe8d, 0xea5,
+    0xea7, 0xeaa, 0xeab, 0xec6, 0x10c7, 0x10cd, 0x1258, 0x12c0, 0x1772,
+    0x1773, 0x1940, 0x1cf8, 0x1cf9, 0x1f59, 0x1f5b, 0x1f5d, 0x2070, 0x2071,
+    0x2d27, 0x2d2d, 0x2d6f, 0x2d70, 0xa7b0, 0xa7b1, 0xab64, 0xab65, 0xfb3e,
+    0xfb40, 0xfb41, 0xfb43, 0xfb44, 0xfffc, 0xfffd
 #if TCL_UTF_MAX > 4
-    ,0x1003c, 0x1003d, 0x10808, 0x10837, 0x10838, 0x1083c, 0x1093f, 0x109be, 0x109bf,
-    0x10a05, 0x10a06, 0x1b000, 0x1b001, 0x1d49e, 0x1d49f, 0x1d4a2, 0x1d4a5, 0x1d4a6,
-    0x1d4bb, 0x1d546, 0x1ee21, 0x1ee22, 0x1ee24, 0x1ee27, 0x1ee39, 0x1ee3b, 0x1ee42,
-    0x1ee47, 0x1ee49, 0x1ee4b, 0x1ee51, 0x1ee52, 0x1ee54, 0x1ee57, 0x1ee59, 0x1ee5b,
-    0x1ee5d, 0x1ee5f, 0x1ee61, 0x1ee62, 0x1ee64, 0x1ee7e, 0x1eef0, 0x1eef1, 0x1f250,
-    0x1f251, 0x1f440
+    ,0x1003c, 0x1003d, 0x101a0, 0x1056f, 0x10808, 0x10837, 0x10838, 0x1083c, 0x1093f,
+    0x109be, 0x109bf, 0x10a05, 0x10a06, 0x111cd, 0x1130f, 0x11310, 0x11332, 0x11333,
+    0x11347, 0x11348, 0x11357, 0x118ff, 0x16a6e, 0x16a6f, 0x1b000, 0x1b001, 0x1d49e,
+    0x1d49f, 0x1d4a2, 0x1d4a5, 0x1d4a6, 0x1d4bb, 0x1d546, 0x1ee21, 0x1ee22, 0x1ee24,
+    0x1ee27, 0x1ee39, 0x1ee3b, 0x1ee42, 0x1ee47, 0x1ee49, 0x1ee4b, 0x1ee51, 0x1ee52,
+    0x1ee54, 0x1ee57, 0x1ee59, 0x1ee5b, 0x1ee5d, 0x1ee5f, 0x1ee61, 0x1ee62, 0x1ee64,
+    0x1ee7e, 0x1eef0, 0x1eef1, 0x1f250, 0x1f251
 #endif
 };
 
diff --git a/generic/regc_nfa.c b/generic/regc_nfa.c
index 4fb3ea6..1f0583e 100644
--- a/generic/regc_nfa.c
+++ b/generic/regc_nfa.c
@@ -497,6 +497,62 @@ freearc(
 }
 
 /*
+ - hasnonemptyout - Does state have a non-EMPTY out arc?
+ ^ static int hasnonemptyout(struct state *);
+ */
+static int
+hasnonemptyout(
+    struct state *s)
+{
+    struct arc *a;
+
+    for (a = s->outs; a != NULL; a = a->outchain) {
+	if (a->type != EMPTY) {
+	    return 1;
+	}
+    }
+    return 0;
+}
+
+/*
+ - nonemptyouts - count non-EMPTY out arcs of a state
+ ^ static int nonemptyouts(struct state *);
+ */
+static int
+nonemptyouts(
+    struct state *s)
+{
+    int n = 0;
+    struct arc *a;
+
+    for (a = s->outs; a != NULL; a = a->outchain) {
+	if (a->type != EMPTY) {
+	    n++;
+	}
+    }
+    return n;
+}
+
+/*
+ - nonemptyins - count non-EMPTY in arcs of a state
+ ^ static int nonemptyins(struct state *);
+ */
+static int
+nonemptyins(
+    struct state *s)
+{
+    int n = 0;
+    struct arc *a;
+
+    for (a = s->ins; a != NULL; a = a->inchain) {
+	if (a->type != EMPTY) {
+	    n++;
+	}
+    }
+    return n;
+}
+
+/*
  - findarc - find arc, if any, from given source with given type and color
  * If there is more than one such arc, the result is random.
  ^ static struct arc *findarc(struct state *, int, pcolor);
@@ -559,21 +615,25 @@ moveins(
 }
 
 /*
- - copyins - copy all in arcs of a state to another state
- ^ static void copyins(struct nfa *, struct state *, struct state *);
+ - copyins - copy in arcs of a state to another state
+ * Either all arcs, or only non-empty ones as determined by all value.
+ ^ static VOID copyins(struct nfa *, struct state *, struct state *, int);
  */
 static void
 copyins(
     struct nfa *nfa,
     struct state *oldState,
-    struct state *newState)
+    struct state *newState,
+    int all)
 {
     struct arc *a;
 
     assert(oldState != newState);
 
     for (a=oldState->ins ; a!=NULL ; a=a->inchain) {
-	cparc(nfa, a, a->from, newState);
+	if (all || a->type != EMPTY) {
+	    cparc(nfa, a, a->from, newState);
+	}
     }
 }
 
@@ -598,21 +658,25 @@ moveouts(
 }
 
 /*
- - copyouts - copy all out arcs of a state to another state
- ^ static void copyouts(struct nfa *, struct state *, struct state *);
+ - copyouts - copy out arcs of a state to another state
+ * Either all arcs, or only non-empty ones as determined by all value.
+ ^ static VOID copyouts(struct nfa *, struct state *, struct state *, int);
  */
 static void
 copyouts(
     struct nfa *nfa,
     struct state *oldState,
-    struct state *newState)
+    struct state *newState,
+    int all)
 {
     struct arc *a;
 
     assert(oldState != newState);
 
     for (a=oldState->outs ; a!=NULL ; a=a->outchain) {
-	cparc(nfa, a, newState, a->to);
+	if (all || a->type != EMPTY) {
+	    cparc(nfa, a, newState, a->to);
+	}
     }
 }
 
@@ -759,7 +823,9 @@ duptraverse(
      * Arbitrary depth limit. Needs tuning, but this value is sufficient to
      * make all normal tests (not reg-33.14) pass.
      */
-#define DUPTRAVERSE_MAX_DEPTH 500
+#ifndef DUPTRAVERSE_MAX_DEPTH
+#define DUPTRAVERSE_MAX_DEPTH 15000
+#endif
 
     if (depth++ > DUPTRAVERSE_MAX_DEPTH) {
 	NERR(REG_ESPACE);
@@ -968,9 +1034,9 @@ pull(
 	if (NISERR()) {
 	    return 0;
 	}
-	assert(to != from);	/* con is not an inarc */
-	copyins(nfa, from, s);	/* duplicate inarcs */
-	cparc(nfa, con, s, to);	/* move constraint arc */
+	assert(to != from);		/* con is not an inarc */
+	copyins(nfa, from, s, 1);	/* duplicate inarcs */
+	cparc(nfa, con, s, to);		/* move constraint arc */
 	freearc(nfa, con);
 	from = s;
 	con = from->outs;
@@ -1128,7 +1194,7 @@ push(
 	if (NISERR()) {
 	    return 0;
 	}
-	copyouts(nfa, to, s);	/* duplicate outarcs */
+	copyouts(nfa, to, s, 1);	/* duplicate outarcs */
 	cparc(nfa, con, from, s);	/* move constraint */
 	freearc(nfa, con);
 	to = s;
@@ -1245,100 +1311,209 @@ fixempties(
     FILE *f)			/* for debug output; NULL none */
 {
     struct state *s;
+    struct state *s2;
     struct state *nexts;
     struct arc *a;
     struct arc *nexta;
-    int progress;
 
     /*
-     * Find and eliminate empties until there are no more.
+     * First, get rid of any states whose sole out-arc is an EMPTY,
+     * since they're basically just aliases for their successor.  The
+     * parsing algorithm creates enough of these that it's worth
+     * special-casing this.
      */
+    for (s = nfa->states; s != NULL && !NISERR(); s = nexts) {
+	nexts = s->next;
+	if (s->flag || s->nouts != 1) {
+	    continue;
+	}
+	a = s->outs;
+	assert(a != NULL && a->outchain == NULL);
+	if (a->type != EMPTY) {
+	    continue;
+	}
+	if (s != a->to) {
+	    moveins(nfa, s, a->to);
+	}
+	dropstate(nfa, s);
+    }
 
-    do {
-	progress = 0;
-	for (s = nfa->states; s != NULL && !NISERR()
-		&& s->no != FREESTATE; s = nexts) {
-	    nexts = s->next;
-	    for (a = s->outs; a != NULL && !NISERR(); a = nexta) {
-		nexta = a->outchain;
-		if (a->type == EMPTY && unempty(nfa, a)) {
-		    progress = 1;
-		}
-		assert(nexta == NULL || s->no != FREESTATE);
+    /*
+     * Similarly, get rid of any state with a single EMPTY in-arc, by
+     * folding it into its predecessor.
+     */
+    for (s = nfa->states; s != NULL && !NISERR(); s = nexts) {
+	nexts = s->next;
+	/* Ensure tmp fields are clear for next step */
+	assert(s->tmp == NULL);
+	if (s->flag || s->nins != 1) {
+	    continue;
+	}
+	a = s->ins;
+	assert(a != NULL && a->inchain == NULL);
+	if (a->type != EMPTY) {
+	    continue;
+	}
+	if (s != a->from) {
+	    moveouts(nfa, s, a->from);
+	}
+	dropstate(nfa, s);
+    }
+
+    /*
+     * For each remaining NFA state, find all other states that are
+     * reachable from it by a chain of one or more EMPTY arcs.  Then
+     * generate new arcs that eliminate the need for each such chain.
+     *
+     * If we just do this straightforwardly, the algorithm gets slow in
+     * complex graphs, because the same arcs get copied to all
+     * intermediate states of an EMPTY chain, and then uselessly pushed
+     * repeatedly to the chain's final state; we waste a lot of time in
+     * newarc's duplicate checking.  To improve matters, we decree that
+     * any state with only EMPTY out-arcs is "doomed" and will not be
+     * part of the final NFA. That can be ensured by not adding any new
+     * out-arcs to such a state. Having ensured that, we need not update
+     * the state's in-arcs list either; all arcs that might have gotten
+     * pushed forward to it will just get pushed directly to successor
+     * states.  This eliminates most of the useless duplicate arcs.
+     */
+    for (s = nfa->states; s != NULL && !NISERR(); s = s->next) {
+	for (s2 = emptyreachable(s, s); s2 != s && !NISERR();
+		s2 = nexts) {
+	    /*
+	     * If s2 is doomed, we decide that (1) we will always push
+	     * arcs forward to it, not pull them back to s; and (2) we
+	     * can optimize away the push-forward, per comment above.
+	     * So do nothing.
+	     */
+	    if (s2->flag || hasnonemptyout(s2)) {
+		replaceempty(nfa, s, s2);
 	    }
+
+	    /* Reset the tmp fields as we walk back */
+	    nexts = s2->tmp;
+	    s2->tmp = NULL;
 	}
-	if (progress && f != NULL) {
-	    dumpnfa(nfa, f);
+	s->tmp = NULL;
+    }
+    if (NISERR()) {
+	return;
+    }
+
+    /*
+     * Remove all the EMPTY arcs, since we don't need them anymore.
+     */
+    for (s = nfa->states; s != NULL; s = s->next) {
+	for (a = s->outs; a != NULL; a = nexta) {
+	    nexta = a->outchain;
+	    if (a->type == EMPTY) {
+		freearc(nfa, a);
+	    }
 	}
-    } while (progress && !NISERR());
+    }
+
+    /*
+     * And remove any states that have become useless.  (This cleanup is
+     * not very thorough, and would be even less so if we tried to
+     * combine it with the previous step; but cleanup() will take care
+     * of anything we miss.)
+     */
+    for (s = nfa->states; s != NULL; s = nexts) {
+	nexts = s->next;
+	if ((s->nins == 0 || s->nouts == 0) && !s->flag) {
+	    dropstate(nfa, s);
+	}
+    }
+
+    if (f != NULL) {
+	dumpnfa(nfa, f);
+    }
 }
 
 /*
- - unempty - optimize out an EMPTY arc, if possible
- * Actually, as it stands this function always succeeds, but the return value
- * is kept with an eye on possible future changes.
- ^ static int unempty(struct nfa *, struct arc *);
+ - emptyreachable - recursively find all states reachable from s by EMPTY arcs
+ * The return value is the last such state found.  Its tmp field links back
+ * to the next-to-last such state, and so on back to s, so that all these
+ * states can be located without searching the whole NFA.
+ * The maximum recursion depth here is equal to the length of the longest
+ * loop-free chain of EMPTY arcs, which is surely no more than the size of
+ * the NFA, and in practice will be a lot less than that.
+ ^ static struct state *emptyreachable(struct state *, struct state *);
  */
-static int			/* 0 couldn't, 1 could */
-unempty(
-    struct nfa *nfa,
-    struct arc *a)
+static struct state *
+emptyreachable(
+    struct state *s,
+    struct state *lastfound)
 {
-    struct state *from = a->from;
-    struct state *to = a->to;
-    int usefrom;		/* work on from, as opposed to to? */
-
-    assert(a->type == EMPTY);
-    assert(from != nfa->pre && to != nfa->post);
+    struct arc *a;
 
-    if (from == to) {		/* vacuous loop */
-	freearc(nfa, a);
-	return 1;
+    s->tmp = lastfound;
+    lastfound = s;
+    for (a = s->outs; a != NULL; a = a->outchain) {
+	if (a->type == EMPTY && a->to->tmp == NULL) {
+	    lastfound = emptyreachable(a->to, lastfound);
+	}
     }
+    return lastfound;
+}
+
+/*
+ - replaceempty - replace an EMPTY arc chain with some non-empty arcs
+ * The EMPTY arc(s) should be deleted later, but we can't do it here because
+ * they may still be needed to identify other arc chains during fixempties().
+ ^ static void replaceempty(struct nfa *, struct state *, struct state *);
+ */
+static void
+replaceempty(
+    struct nfa *nfa,
+    struct state *from,
+    struct state *to)
+{
+    int fromouts;
+    int toins;
+
+    assert(from != to);
 
     /*
-     * Decide which end to work on.
+     * Create replacement arcs that bypass the need for the EMPTY chain.  We
+     * can do this either by pushing arcs forward (linking directly from
+     * "from"'s predecessors to "to") or by pulling them back (linking
+     * directly from "from" to "to"'s successors).  In general, we choose
+     * whichever way creates greater fan-out or fan-in, so as to improve the
+     * odds of reducing the other state to zero in-arcs or out-arcs and
+     * thereby being able to delete it.  However, if "from" is doomed (has no
+     * non-EMPTY out-arcs), we must keep it so, so always push forward in that
+     * case.
+     *
+     * The fan-out/fan-in comparison should count only non-EMPTY arcs.  If
+     * "from" is doomed, we can skip counting "to"'s arcs, since we want to
+     * force taking the copynonemptyins path in that case.
      */
+    fromouts = nonemptyouts(from);
+    toins = (fromouts == 0) ? 1 : nonemptyins(to);
 
-    usefrom = 1;		/* default: attack from */
-    if (from->nouts > to->nins) {
-	usefrom = 0;
-    } else if (from->nouts == to->nins) {
-	/*
-	 * Decide on secondary issue: move/copy fewest arcs.
-	 */
-
-	if (from->nins > to->nouts) {
-	    usefrom = 0;
-	}
+    if (fromouts > toins) {
+	copyouts(nfa, to, from, 0);
+	return;
+    }
+    if (fromouts < toins) {
+	copyins(nfa, from, to, 0);
+	return;
     }
 
-    freearc(nfa, a);
-    if (usefrom) {
-	if (from->nouts == 0) {
-	    /*
-	     * Was the state's only outarc.
-	     */
-
-	    moveins(nfa, from, to);
-	    freestate(nfa, from);
-	} else {
-	    copyins(nfa, from, to);
-	}
-    } else {
-	if (to->nins == 0) {
-	    /*
-	     * Was the state's only inarc.
-	     */
-
-	    moveouts(nfa, to, from);
-	    freestate(nfa, to);
-	} else {
-	    copyouts(nfa, to, from);
-	}
+    /*
+     * fromouts == toins.  Decide on secondary issue: copy fewest arcs.
+     *
+     * Doesn't seem to be worth the trouble to exclude empties from these
+     * comparisons; that takes extra time and doesn't seem to improve the
+     * resulting graph much.
+     */
+    if (from->nins > to->nouts) {
+	copyouts(nfa, to, from, 0);
+	return;
     }
 
-    return 1;
+    copyins(nfa, from, to, 0);
 }
 
 /*
diff --git a/generic/regcomp.c b/generic/regcomp.c
index 65555aa..7ca4346 100644
--- a/generic/regcomp.c
+++ b/generic/regcomp.c
@@ -121,12 +121,15 @@ static void destroystate(struct nfa *, struct state *);
 static void newarc(struct nfa *, int, pcolor, struct state *, struct state *);
 static struct arc *allocarc(struct nfa *, struct state *);
 static void freearc(struct nfa *, struct arc *);
+static int hasnonemptyout(struct state *);
+static int nonemptyouts(struct state *);
+static int nonemptyins(struct state *);
 static struct arc *findarc(struct state *, int, pcolor);
 static void cparc(struct nfa *, struct arc *, struct state *, struct state *);
 static void moveins(struct nfa *, struct state *, struct state *);
-static void copyins(struct nfa *, struct state *, struct state *);
+static void copyins(struct nfa *, struct state *, struct state *, int);
 static void moveouts(struct nfa *, struct state *, struct state *);
-static void copyouts(struct nfa *, struct state *, struct state *);
+static void copyouts(struct nfa *, struct state *, struct state *, int);
 static void cloneouts(struct nfa *, struct state *, struct state *, struct state *, int);
 static void delsub(struct nfa *, struct state *, struct state *);
 static void deltraverse(struct nfa *, struct state *, struct state *);
@@ -144,7 +147,8 @@ static int push(struct nfa *, struct arc *);
 #define	COMPATIBLE	3	/* compatible but not satisfied yet */
 static int combine(struct arc *, struct arc *);
 static void fixempties(struct nfa *, FILE *);
-static int unempty(struct nfa *, struct arc *);
+static struct state *emptyreachable(struct state *, struct state *);
+static void replaceempty(struct nfa *, struct state *, struct state *);
 static void cleanup(struct nfa *);
 static void markreachable(struct nfa *, struct state *, struct state *, struct state *);
 static void markcanreach(struct nfa *, struct state *, struct state *, struct state *);
@@ -607,7 +611,7 @@ makesearch(
     for (s=slist ; s!=NULL ; s=s2) {
 	s2 = newstate(nfa);
 
-	copyouts(nfa, s, s2);
+	copyouts(nfa, s, s2, 1);
 	for (a=s->ins ; a!=NULL ; a=b) {
 	    b = a->inchain;
 
@@ -738,6 +742,7 @@ parsebranch(
 
 	/* NB, recursion in parseqatom() may swallow rest of branch */
 	parseqatom(v, stopper, type, lp, right, t);
+	NOERRN();
     }
 
     if (!seencontent) {		/* empty branch */
@@ -991,13 +996,13 @@ parseqatom(
     switch (v->nexttype) {
     case '*':
 	m = 0;
-	n = INFINITY;
+	n = DUPINF;
 	qprefer = (v->nextvalue) ? LONGER : SHORTER;
 	NEXT();
 	break;
     case '+':
 	m = 1;
-	n = INFINITY;
+	n = DUPINF;
 	qprefer = (v->nextvalue) ? LONGER : SHORTER;
 	NEXT();
 	break;
@@ -1014,7 +1019,7 @@ parseqatom(
 	    if (SEE(DIGIT)) {
 		n = scannum(v);
 	    } else {
-		n = INFINITY;
+		n = DUPINF;
 	    }
 	    if (m > n) {
 		ERR(REG_BADBR);
@@ -1212,8 +1217,8 @@ parseqatom(
 	 */
 
 	dupnfa(v->nfa, atom->begin, atom->end, s, atom->begin);
-	assert(m >= 1 && m != INFINITY && n >= 1);
-	repeat(v, s, atom->begin, m-1, (n == INFINITY) ? n : n-1);
+	assert(m >= 1 && m != DUPINF && n >= 1);
+	repeat(v, s, atom->begin, m-1, (n == DUPINF) ? n : n-1);
 	f = COMBINE(qprefer, atom->flags);
 	t = subre(v, '.', f, s, atom->end);	/* prefix and atom */
 	NOERR();
@@ -1234,6 +1239,7 @@ parseqatom(
 	EMPTYARC(atom->end, rp);
 	t->right = subre(v, '=', 0, atom->end, rp);
     }
+    NOERR();
     assert(SEE('|') || SEE(stopper) || SEE(EOS));
     t->flags |= COMBINE(t->flags, t->right->flags);
     top->flags |= COMBINE(top->flags, t->flags);
@@ -1317,7 +1323,7 @@ repeat(
 #define	SOME		2
 #define	INF		3
 #define	PAIR(x, y)	((x)*4 + (y))
-#define	REDUCE(x)	( ((x) == INFINITY) ? INF : (((x) > 1) ? SOME : (x)) )
+#define	REDUCE(x)	( ((x) == DUPINF) ? INF : (((x) > 1) ? SOME : (x)) )
     const int rm = REDUCE(m);
     const int rn = REDUCE(n);
     struct state *s, *s2;
@@ -2102,7 +2108,7 @@ stdump(
     }
     if (t->min != 1 || t->max != 1) {
 	fprintf(f, " {%d,", t->min);
-	if (t->max != INFINITY) {
+	if (t->max != DUPINF) {
 	    fprintf(f, "%d", t->max);
 	}
 	fprintf(f, "}");
diff --git a/generic/regerrs.h b/generic/regerrs.h
index 259c0cb..72548ff 100644
--- a/generic/regerrs.h
+++ b/generic/regerrs.h
@@ -17,3 +17,4 @@
 { REG_MIXED,	"REG_MIXED",	"character widths of regex and string differ" },
 { REG_BADOPT,	"REG_BADOPT",	"invalid embedded option" },
 { REG_ETOOBIG,	"REG_ETOOBIG",	"nfa has too many states" },
+{ REG_ECOLORS,	"REG_ECOLORS",	"too many colors" },
diff --git a/generic/regex.h b/generic/regex.h
index d6d46ce..9466fbb 100644
--- a/generic/regex.h
+++ b/generic/regex.h
@@ -281,6 +281,7 @@ typedef struct {
 #define	REG_MIXED	17	/* character widths of regex and string differ */
 #define	REG_BADOPT	18	/* invalid embedded option */
 #define	REG_ETOOBIG	19	/* nfa has too many states */
+#define	REG_ECOLORS	20	/* too many colors */
 /* two specials for debugging and testing */
 #define	REG_ATOI	101	/* convert error-code name to number */
 #define	REG_ITOA	102	/* convert error-code number to name */
diff --git a/generic/regexec.c b/generic/regexec.c
index 9b6a693..3b9af3e 100644
--- a/generic/regexec.c
+++ b/generic/regexec.c
@@ -504,12 +504,7 @@ complicatedFindLoop(
 		    return er;
 		}
 		if ((shorter) ? end == estop : end == begin) {
-		    /*
-		     * No point in trying again.
-		     */
-
-		    *coldp = cold;
-		    return REG_NOMATCH;
+		    break;
 		}
 
 		/*
@@ -1127,7 +1122,7 @@ complicatedBackrefDissect(
      */
 
     i = 0;
-    for (p = begin; p <= stop && (i < max || max == INFINITY); p += len) {
+    for (p = begin; p <= stop && (i < max || max == DUPINF); p += len) {
 	if (v->g->compare(paren, p, len) != 0) {
 	    break;
 	}
@@ -1142,7 +1137,7 @@ complicatedBackrefDissect(
     if (p != end) {		/* didn't consume all of it */
 	return REG_NOMATCH;
     }
-    if (min <= i && (i <= max || max == INFINITY)) {
+    if (min <= i && (i <= max || max == DUPINF)) {
 	return REG_OKAY;
     }
     return REG_NOMATCH;		/* out of range */
diff --git a/generic/regguts.h b/generic/regguts.h
index e57b8f8..1b6abe6 100644
--- a/generic/regguts.h
+++ b/generic/regguts.h
@@ -99,7 +99,7 @@
 #define	xxx		1
 
 #define	DUPMAX	_POSIX2_RE_DUP_MAX
-#define	INFINITY	(DUPMAX+1)
+#define	DUPINF	(DUPMAX+1)
 
 #define	REMAGIC	0xfed7		/* magic number for main struct */
 
@@ -145,6 +145,7 @@
 
 typedef short color;		/* colors of characters */
 typedef int pcolor;		/* what color promotes to */
+#define MAX_COLOR	SHRT_MAX /* max color value */
 #define	COLORLESS	(-1)	/* impossible color */
 #define	WHITE		0	/* default color, parent of all others */
 
@@ -340,12 +341,12 @@ struct subre {
 #define	CAP	010		/* capturing parens below */
 #define	BACKR	020		/* back reference below */
 #define	INUSE	0100		/* in use in final tree */
-#define	LOCAL	03		/* bits which may not propagate up */
+#define	NOPROP	03		/* bits which may not propagate up */
 #define	LMIX(f)	((f)<<2)	/* LONGER -> MIXED */
 #define	SMIX(f)	((f)<<1)	/* SHORTER -> MIXED */
-#define	UP(f)	(((f)&~LOCAL) | (LMIX(f) & SMIX(f) & MIXED))
+#define	UP(f)	(((f)&~NOPROP) | (LMIX(f) & SMIX(f) & MIXED))
 #define	MESSY(f)	((f)&(MIXED|CAP|BACKR))
-#define	PREF(f)	((f)&LOCAL)
+#define	PREF(f)	((f)&NOPROP)
 #define	PREF2(f1, f2)	((PREF(f1) != 0) ? PREF(f1) : PREF(f2))
 #define	COMBINE(f1, f2)	(UP((f1)|(f2)) | PREF2(f1, f2))
     short retry;		/* index into retry memory */
@@ -366,7 +367,7 @@ struct subre {
  */
 
 struct fns {
-    VOID FUNCPTR(free, (regex_t *));
+    void FUNCPTR(free, (regex_t *));
 };
 
 /*
diff --git a/generic/tcl.decls b/generic/tcl.decls
index b421ae2..1829249 100644
--- a/generic/tcl.decls
+++ b/generic/tcl.decls
@@ -2318,6 +2318,12 @@ declare 629 {
     int Tcl_FSUnloadFile(Tcl_Interp *interp, Tcl_LoadHandle handlePtr)
 }
 
+# TIP #400
+declare 630 {
+    void Tcl_ZlibStreamSetCompressionDictionary(Tcl_ZlibStream zhandle,
+	    Tcl_Obj *compressionDictionaryObj)
+}
+
 # ----- BASELINE -- FOR -- 8.6.0 ----- #
 
 ##############################################################################
diff --git a/generic/tcl.h b/generic/tcl.h
index 3f9f06a..297b42c 100644
--- a/generic/tcl.h
+++ b/generic/tcl.h
@@ -51,17 +51,15 @@ extern "C" {
  * win/README		(not patchlevel) (sections 0 and 2)
  * unix/tcl.spec	(1 LOC patch)
  * tools/tcl.hpj.in	(not patchlevel, for windows installer)
- * tools/tcl.wse.in	(for windows installer)
- * tools/tclSplash.bmp	(not patchlevel)
  */
 
 #define TCL_MAJOR_VERSION   8
 #define TCL_MINOR_VERSION   6
-#define TCL_RELEASE_LEVEL   TCL_BETA_RELEASE
-#define TCL_RELEASE_SERIAL  3
+#define TCL_RELEASE_LEVEL   TCL_FINAL_RELEASE
+#define TCL_RELEASE_SERIAL  4
 
 #define TCL_VERSION	    "8.6"
-#define TCL_PATCH_LEVEL	    "8.6b3"
+#define TCL_PATCH_LEVEL	    "8.6.4"
 
 /*
  *----------------------------------------------------------------------------
@@ -69,27 +67,14 @@ extern "C" {
  * We use this method because there is no autoconf equivalent.
  */
 
-#ifndef __WIN32__
-#   if defined(_WIN32) || defined(WIN32) || defined(__MINGW32__) || defined(__BORLANDC__) || (defined(__WATCOMC__) && defined(__WINDOWS_386__))
+#ifdef _WIN32
+#   ifndef __WIN32__
 #	define __WIN32__
-#	ifndef WIN32
-#	    define WIN32
-#	endif
-#	ifndef _WIN32
-#	    define _WIN32
-#	endif
 #   endif
-#endif
-
-/*
- * STRICT: See MSDN Article Q83456
- */
-
-#ifdef __WIN32__
-#   ifndef STRICT
-#	define STRICT
+#   ifndef WIN32
+#	define WIN32
 #   endif
-#endif /* __WIN32__ */
+#endif
 
 /*
  * Utility macros: STRINGIFY takes an argument and wraps it in "" (double
@@ -170,7 +155,7 @@ extern "C" {
  */
 
 #if defined(__GNUC__) && ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)))
-#   if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC__MINOR__ >= 5))
+#   if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5))
 #	define TCL_DEPRECATED_API(msg)	__attribute__ ((__deprecated__ (msg)))
 #   else
 #	define TCL_DEPRECATED_API(msg)	__attribute__ ((__deprecated__))
@@ -193,7 +178,7 @@ extern "C" {
  *       MSVCRT.
  */
 
-#if (defined(__WIN32__) && (defined(_MSC_VER) || (__BORLANDC__ >= 0x0550) || defined(__LCC__) || defined(__WATCOMC__) || (defined(__GNUC__) && defined(__declspec))))
+#if (defined(_WIN32) && (defined(_MSC_VER) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x0550)) || defined(__LCC__) || defined(__WATCOMC__) || (defined(__GNUC__) && defined(__declspec))))
 #   define HAVE_DECLSPEC 1
 #   ifdef STATIC_BUILD
 #       define DLLIMPORT
@@ -317,24 +302,26 @@ extern "C" {
  * VOID. This block is skipped under Cygwin and Mingw.
  */
 
-#if defined(__WIN32__) && !defined(HAVE_WINNT_IGNORE_VOID)
+#if defined(_WIN32) && !defined(HAVE_WINNT_IGNORE_VOID)
 #ifndef VOID
 #define VOID void
 typedef char CHAR;
 typedef short SHORT;
 typedef long LONG;
 #endif
-#endif /* __WIN32__ && !HAVE_WINNT_IGNORE_VOID */
+#endif /* _WIN32 && !HAVE_WINNT_IGNORE_VOID */
 
 /*
  * Macro to use instead of "void" for arguments that must have type "void *"
  * in ANSI C; maps them to type "char *" in non-ANSI systems.
  */
 
-#ifndef NO_VOID
-#   define VOID void
-#else
-#   define VOID char
+#ifndef __VXWORKS__
+#   ifndef NO_VOID
+#	define VOID void
+#   else
+#	define VOID char
+#   endif
 #endif
 
 /*
@@ -390,7 +377,7 @@ typedef long LONG;
  */
 
 #if !defined(TCL_WIDE_INT_TYPE)&&!defined(TCL_WIDE_INT_IS_LONG)
-#   if defined(__WIN32__)
+#   if defined(_WIN32)
 #      define TCL_WIDE_INT_TYPE __int64
 #      ifdef __BORLANDC__
 #         define TCL_LL_MODIFIER	"L"
@@ -400,22 +387,18 @@ typedef long LONG;
 #   elif defined(__GNUC__)
 #      define TCL_WIDE_INT_TYPE long long
 #      define TCL_LL_MODIFIER	"ll"
-#   else /* ! __WIN32__ && ! __GNUC__ */
+#   else /* ! _WIN32 && ! __GNUC__ */
 /*
  * Don't know what platform it is and configure hasn't discovered what is
  * going on for us. Try to guess...
  */
-#      ifdef NO_LIMITS_H
-#	  error please define either TCL_WIDE_INT_TYPE or TCL_WIDE_INT_IS_LONG
-#      else /* !NO_LIMITS_H */
-#	  include <limits.h>
-#	  if (INT_MAX < LONG_MAX)
-#	     define TCL_WIDE_INT_IS_LONG	1
-#	  else
-#	     define TCL_WIDE_INT_TYPE long long
-#         endif
-#      endif /* NO_LIMITS_H */
-#   endif /* __WIN32__ */
+#      include <limits.h>
+#      if (INT_MAX < LONG_MAX)
+#         define TCL_WIDE_INT_IS_LONG	1
+#      else
+#         define TCL_WIDE_INT_TYPE long long
+#      endif
+#   endif /* _WIN32 */
 #endif /* !TCL_WIDE_INT_TYPE & !TCL_WIDE_INT_IS_LONG */
 #ifdef TCL_WIDE_INT_IS_LONG
 #   undef TCL_WIDE_INT_TYPE
@@ -447,7 +430,7 @@ typedef unsigned TCL_WIDE_INT_TYPE	Tcl_WideUInt;
 #   define Tcl_DoubleAsWide(val)	((Tcl_WideInt)((double)(val)))
 #endif /* TCL_WIDE_INT_IS_LONG */
 
-#if defined(__WIN32__)
+#if defined(_WIN32)
 #   ifdef __BORLANDC__
 	typedef struct stati64 Tcl_StatBuf;
 #   elif defined(_WIN64)
@@ -458,7 +441,7 @@ typedef unsigned TCL_WIDE_INT_TYPE	Tcl_WideUInt;
 	typedef struct _stat32i64 Tcl_StatBuf;
 #   endif /* _MSC_VER < 1400 */
 #elif defined(__CYGWIN__)
-    typedef struct _stat32i64 {
+    typedef struct {
 	dev_t st_dev;
 	unsigned short st_ino;
 	unsigned short st_mode;
@@ -474,7 +457,7 @@ typedef unsigned TCL_WIDE_INT_TYPE	Tcl_WideUInt;
 	struct {long tv_sec;} st_ctim;
 	/* Here is a 4-byte gap */
     } Tcl_StatBuf;
-#elif defined(HAVE_STRUCT_STAT64)
+#elif defined(HAVE_STRUCT_STAT64) && !defined(__APPLE__)
     typedef struct stat64 Tcl_StatBuf;
 #else
     typedef struct stat Tcl_StatBuf;
@@ -506,11 +489,11 @@ typedef struct Tcl_Interp
     /* TIP #330: Strongly discourage extensions from using the string
      * result. */
 #ifdef USE_INTERP_RESULT
-    char *result TCL_DEPRECATED_API("use Tcl_GetResult/Tcl_SetResult");
+    char *result TCL_DEPRECATED_API("use Tcl_GetStringResult/Tcl_SetResult");
 				/* If the last command returned a string
 				 * result, this points to it. */
     void (*freeProc) (char *blockPtr)
-	    TCL_DEPRECATED_API("use Tcl_GetResult/Tcl_SetResult");
+	    TCL_DEPRECATED_API("use Tcl_GetStringResult/Tcl_SetResult");
 				/* Zero means the string result is statically
 				 * allocated. TCL_DYNAMIC means it was
 				 * allocated with ckalloc and should be freed
@@ -562,7 +545,7 @@ typedef struct Tcl_ZLibStream_ *Tcl_ZlibStream;
  * will be called as the main fuction of the new thread created by that call.
  */
 
-#if defined __WIN32__
+#if defined _WIN32
 typedef unsigned (__stdcall Tcl_ThreadCreateProc) (ClientData clientData);
 #else
 typedef void (Tcl_ThreadCreateProc) (ClientData clientData);
@@ -574,7 +557,7 @@ typedef void (Tcl_ThreadCreateProc) (ClientData clientData);
  * in generic/tclThreadTest.c for it's usage.
  */
 
-#if defined __WIN32__
+#if defined _WIN32
 #   define Tcl_ThreadCreateType		unsigned __stdcall
 #   define TCL_THREAD_CREATE_RETURN	return 0
 #else
@@ -856,10 +839,7 @@ typedef struct Tcl_Obj {
  * whether an object is shared (i.e. has reference count > 1). Note: clients
  * should use Tcl_DecrRefCount() when they are finished using an object, and
  * should never call TclFreeObj() directly. TclFreeObj() is only defined and
- * made public in tcl.h to support Tcl_DecrRefCount's macro definition. Note
- * also that Tcl_DecrRefCount() refers to the parameter "obj" twice. This
- * means that you should avoid calling it with an expression that is expensive
- * to compute or has side effects.
+ * made public in tcl.h to support Tcl_DecrRefCount's macro definition.
  */
 
 void		Tcl_IncrRefCount(Tcl_Obj *objPtr);
@@ -2150,11 +2130,28 @@ typedef struct Tcl_EncodingType {
  *				substituting one or more "close" characters in
  *				the destination buffer and then continue to
  *				convert the source.
+ * TCL_ENCODING_NO_TERMINATE - 	If set, Tcl_ExternalToUtf will not append a
+ *				terminating NUL byte.  Knowing that it will
+ *				not need space to do so, it will fill all
+ *				dstLen bytes with encoded UTF-8 content, as
+ *				other circumstances permit.  If clear, the
+ *				default behavior is to reserve a byte in
+ *				the dst space for NUL termination, and to
+ *				append the NUL byte.
+ * TCL_ENCODING_CHAR_LIMIT -	If set and dstCharsPtr is not NULL, then
+ *				Tcl_ExternalToUtf takes the initial value
+ *				of *dstCharsPtr is taken as a limit of the
+ *				maximum number of chars to produce in the
+ *				encoded UTF-8 content.  Otherwise, the 
+ *				number of chars produced is controlled only
+ *				by other limiting factors.
  */
 
 #define TCL_ENCODING_START		0x01
 #define TCL_ENCODING_END		0x02
 #define TCL_ENCODING_STOPONERROR	0x04
+#define TCL_ENCODING_NO_TERMINATE	0x08
+#define TCL_ENCODING_CHAR_LIMIT		0x10
 
 /*
  * The following definitions are the error codes returned by the conversion
@@ -2364,6 +2361,14 @@ typedef int (Tcl_ArgvGenFuncProc)(ClientData clientData, Tcl_Interp *interp,
 
 /*
  *----------------------------------------------------------------------------
+ * Definitions needed for the Tcl_LoadFile function. [TIP #416]
+ */
+
+#define TCL_LOAD_GLOBAL 1
+#define TCL_LOAD_LAZY 2
+
+/*
+ *----------------------------------------------------------------------------
  * Single public declaration for NRE.
  */
 
@@ -2412,14 +2417,12 @@ const char *		TclTomMathInitializeStubs(Tcl_Interp *interp,
  */
 
 #define Tcl_Main(argc, argv, proc) Tcl_MainEx(argc, argv, proc, \
-	    (Tcl_FindExecutable(argv[0]), (Tcl_CreateInterp)()))
+	    ((Tcl_CreateInterp)()))
 EXTERN void		Tcl_MainEx(int argc, char **argv,
 			    Tcl_AppInitProc *appInitProc, Tcl_Interp *interp);
 EXTERN const char *	Tcl_PkgInitStubsCheck(Tcl_Interp *interp,
 			    const char *version, int exact);
-#if defined(TCL_THREADS) && defined(USE_THREAD_ALLOC)
 EXTERN void		Tcl_GetMemoryInfo(Tcl_DString *dsPtr);
-#endif
 
 /*
  *----------------------------------------------------------------------------
@@ -2431,9 +2434,15 @@ EXTERN void		Tcl_GetMemoryInfo(Tcl_DString *dsPtr);
 
 /*
  * Include platform specific public function declarations that are accessible
- * via the stubs table.
+ * via the stubs table. Make all TclOO symbols MODULE_SCOPE (which only
+ * has effect on building it as a shared library). See ticket [3010352].
  */
 
+#if defined(BUILD_tcl)
+#   undef TCLAPI
+#   define TCLAPI MODULE_SCOPE
+#endif
+
 #include "tclPlatDecls.h"
 
 /*
@@ -2446,15 +2455,15 @@ EXTERN void		Tcl_GetMemoryInfo(Tcl_DString *dsPtr);
 #ifdef TCL_MEM_DEBUG
 
 #   define ckalloc(x) \
-    ((VOID *) Tcl_DbCkalloc((unsigned)(x), __FILE__, __LINE__))
+    ((void *) Tcl_DbCkalloc((unsigned)(x), __FILE__, __LINE__))
 #   define ckfree(x) \
     Tcl_DbCkfree((char *)(x), __FILE__, __LINE__)
 #   define ckrealloc(x,y) \
-    ((VOID *) Tcl_DbCkrealloc((char *)(x), (unsigned)(y), __FILE__, __LINE__))
+    ((void *) Tcl_DbCkrealloc((char *)(x), (unsigned)(y), __FILE__, __LINE__))
 #   define attemptckalloc(x) \
-    ((VOID *) Tcl_AttemptDbCkalloc((unsigned)(x), __FILE__, __LINE__))
+    ((void *) Tcl_AttemptDbCkalloc((unsigned)(x), __FILE__, __LINE__))
 #   define attemptckrealloc(x,y) \
-    ((VOID *) Tcl_AttemptDbCkrealloc((char *)(x), (unsigned)(y), __FILE__, __LINE__))
+    ((void *) Tcl_AttemptDbCkrealloc((char *)(x), (unsigned)(y), __FILE__, __LINE__))
 
 #else /* !TCL_MEM_DEBUG */
 
@@ -2465,15 +2474,15 @@ EXTERN void		Tcl_GetMemoryInfo(Tcl_DString *dsPtr);
  */
 
 #   define ckalloc(x) \
-    ((VOID *) Tcl_Alloc((unsigned)(x)))
+    ((void *) Tcl_Alloc((unsigned)(x)))
 #   define ckfree(x) \
     Tcl_Free((char *)(x))
 #   define ckrealloc(x,y) \
-    ((VOID *) Tcl_Realloc((char *)(x), (unsigned)(y)))
+    ((void *) Tcl_Realloc((char *)(x), (unsigned)(y)))
 #   define attemptckalloc(x) \
-    ((VOID *) Tcl_AttemptAlloc((unsigned)(x)))
+    ((void *) Tcl_AttemptAlloc((unsigned)(x)))
 #   define attemptckrealloc(x,y) \
-    ((VOID *) Tcl_AttemptRealloc((char *)(x), (unsigned)(y)))
+    ((void *) Tcl_AttemptRealloc((char *)(x), (unsigned)(y)))
 #   undef  Tcl_InitMemory
 #   define Tcl_InitMemory(x)
 #   undef  Tcl_DumpActiveMemory
@@ -2498,7 +2507,12 @@ EXTERN void		Tcl_GetMemoryInfo(Tcl_DString *dsPtr);
      * http://c2.com/cgi/wiki?TrivialDoWhileLoop
      */
 #   define Tcl_DecrRefCount(objPtr) \
-	do { if (--(objPtr)->refCount <= 0) TclFreeObj(objPtr); } while(0)
+	do { \
+	    Tcl_Obj *_objPtr = (objPtr); \
+	    if (--(_objPtr)->refCount <= 0) { \
+		TclFreeObj(_objPtr); \
+	    } \
+	} while(0)
 #   define Tcl_IsShared(objPtr) \
 	((objPtr)->refCount > 1)
 #endif
@@ -2594,13 +2608,6 @@ EXTERN void		Tcl_GetMemoryInfo(Tcl_DString *dsPtr);
  */
 
 #ifndef TCL_NO_DEPRECATED
-#   undef  Tcl_EvalObj
-#   define Tcl_EvalObj(interp,objPtr) \
-	Tcl_EvalObjEx((interp),(objPtr),0)
-#   undef  Tcl_GlobalEvalObj
-#   define Tcl_GlobalEvalObj(interp,objPtr) \
-	Tcl_EvalObjEx((interp),(objPtr),TCL_EVAL_GLOBAL)
-
 /*
  * These function have been renamed. The old names are deprecated, but we
  * define these macros for backwards compatibilty.
diff --git a/generic/tclAlloc.c b/generic/tclAlloc.c
index ae61e85..cda1f38 100644
--- a/generic/tclAlloc.c
+++ b/generic/tclAlloc.c
@@ -31,7 +31,7 @@
  * until Tcl uses config.h properly.
  */
 
-#if defined(_MSC_VER) || defined(__MINGW32__) || defined(__BORLANDC__)
+#if defined(_MSC_VER) || defined(__MSVCRT__) || defined(__BORLANDC__)
 typedef unsigned long caddr_t;
 #endif
 
diff --git a/generic/tclAssembly.c b/generic/tclAssembly.c
index 83f4fe9..6d5676b 100644
--- a/generic/tclAssembly.c
+++ b/generic/tclAssembly.c
@@ -20,12 +20,13 @@
  *-   break and continue - if exception ranges can be sorted out.
  *-   foreach_start4, foreach_step4
  *-   returnImm, returnStk
- *-   expandStart, expandStkTop, invokeExpanded
+ *-   expandStart, expandStkTop, invokeExpanded, expandDrop
  *-   dictFirst, dictNext, dictDone
  *-   dictUpdateStart, dictUpdateEnd
  *-   jumpTable testing
  *-   syntax (?)
  *-   returnCodeBranch
+ *-   tclooNext, tclooNextClass
  */
 
 #include "tclInt.h"
@@ -49,7 +50,7 @@ typedef enum BasicBlockCatchState {
     BBCS_UNKNOWN = 0,		/* Catch context has not yet been identified */
     BBCS_NONE,			/* Block is outside of any catch */
     BBCS_INCATCH,		/* Block is within a catch context */
-    BBCS_CAUGHT,		/* Block is within a catch context and
+    BBCS_CAUGHT 		/* Block is within a catch context and
 				 * may be executed after an exception fires */
 } BasicBlockCatchState;
 
@@ -120,7 +121,7 @@ enum BasicBlockFlags {
 				 * marking it as the start of a 'catch'
 				 * sequence. The 'jumpTarget' is the exception
 				 * exit from the catch block. */
-    BB_ENDCATCH = (1 << 5),	/* Block ends with an 'endCatch' instruction,
+    BB_ENDCATCH = (1 << 5)	/* Block ends with an 'endCatch' instruction,
 				 * unwinding the catch from the exception
 				 * stack. */
 };
@@ -183,7 +184,7 @@ typedef enum TalInstType {
 				 * produces N */
     ASSEM_SINT1,		/* One 1-byte signed-integer operand
 				 * (INCR_STK_IMM) */
-    ASSEM_SINT4_LVT4,		/* Signed 4-byte integer operand followed by
+    ASSEM_SINT4_LVT4		/* Signed 4-byte integer operand followed by
 				 * LVT entry.  Fixed arity */
 } TalInstType;
 
@@ -324,29 +325,6 @@ static const Tcl_ObjType assembleCodeType = {
 };
 
 /*
- * TIP #280: Remember the per-word line information of the current command. An
- * index is used instead of a pointer as recursive compilation may reallocate,
- * i.e. move, the array. This is also the reason to save the nuloc now, it may
- * change during the course of the function.
- *
- * Macro to encapsulate the variable definition and setup.
- */
-
-#define DefineLineInformation \
-    ExtCmdLoc *mapPtr = envPtr->extCmdMapPtr;				\
-    int eclIndex = mapPtr->nuloc - 1
-
-#define SetLineInformation(word) \
-    envPtr->line = mapPtr->loc[eclIndex].line[(word)];			\
-    envPtr->clNext = mapPtr->loc[eclIndex].next[(word)]
-
-/*
- * Flags bits used by PushVarName.
- */
-
-#define TCL_NO_LARGE_INDEX 1	/* Do not return localIndex value > 255 */
-
-/*
  * Source instructions recognized in the Tcl Assembly Language (TAL)
  */
 
@@ -362,14 +340,22 @@ static const TalInstDesc TalInstructionTable[] = {
 					 | INST_APPEND_ARRAY4),	2,	1},
     {"appendArrayStk",	ASSEM_1BYTE,	INST_APPEND_ARRAY_STK,	3,	1},
     {"appendStk",	ASSEM_1BYTE,	INST_APPEND_STK,	2,	1},
+    {"arrayExistsImm",	ASSEM_LVT4,	INST_ARRAY_EXISTS_IMM,	0,	1},
+    {"arrayExistsStk",	ASSEM_1BYTE,	INST_ARRAY_EXISTS_STK,	1,	1},
+    {"arrayMakeImm",	ASSEM_LVT4,	INST_ARRAY_MAKE_IMM,	0,	0},
+    {"arrayMakeStk",	ASSEM_1BYTE,	INST_ARRAY_MAKE_STK,	1,	0},
     {"beginCatch",	ASSEM_BEGIN_CATCH,
 					INST_BEGIN_CATCH4,	0,	0},
     {"bitand",		ASSEM_1BYTE,	INST_BITAND,		2,	1},
     {"bitnot",		ASSEM_1BYTE,	INST_BITNOT,		1,	1},
     {"bitor",		ASSEM_1BYTE,	INST_BITOR,		2,	1},
     {"bitxor",		ASSEM_1BYTE,	INST_BITXOR,		2,	1},
-    {"concat",		ASSEM_CONCAT1,	INST_CONCAT1,		INT_MIN,1},
+    {"concat",		ASSEM_CONCAT1,	INST_STR_CONCAT1,	INT_MIN,1},
+    {"concatStk",	ASSEM_LIST,	INST_CONCAT_STK,	INT_MIN,1},
+    {"coroName",	ASSEM_1BYTE,	INST_COROUTINE_NAME,	0,	1},
+    {"currentNamespace",ASSEM_1BYTE,	INST_NS_CURRENT,	0,	1},
     {"dictAppend",	ASSEM_LVT4,	INST_DICT_APPEND,	2,	1},
+    {"dictExists",	ASSEM_DICT_GET, INST_DICT_EXISTS,	INT_MIN,1},
     {"dictExpand",	ASSEM_1BYTE,	INST_DICT_EXPAND,	3,	1},
     {"dictGet",		ASSEM_DICT_GET, INST_DICT_GET,		INT_MIN,1},
     {"dictIncrImm",	ASSEM_SINT4_LVT4,
@@ -403,9 +389,10 @@ static const TalInstDesc TalInstructionTable[] = {
     {"incrArrayStkImm", ASSEM_SINT1,	INST_INCR_ARRAY_STK_IMM,2,	1},
     {"incrImm",		ASSEM_LVT1_SINT1,
 					INST_INCR_SCALAR1_IMM,	0,	1},
-    {"incrStk",		ASSEM_1BYTE,	INST_INCR_SCALAR_STK,	2,	1},
-    {"incrStkImm",	ASSEM_SINT1,	INST_INCR_SCALAR_STK_IMM,
-								1,	1},
+    {"incrStk",		ASSEM_1BYTE,	INST_INCR_STK,		2,	1},
+    {"incrStkImm",	ASSEM_SINT1,	INST_INCR_STK_IMM,	1,	1},
+    {"infoLevelArgs",	ASSEM_1BYTE,	INST_INFO_LEVEL_ARGS,	1,	1},
+    {"infoLevelNumber",	ASSEM_1BYTE,	INST_INFO_LEVEL_NUM,	0,	1},
     {"invokeStk",	ASSEM_INVOKE,	(INST_INVOKE_STK1 << 8
 					 | INST_INVOKE_STK4),	INT_MIN,1},
     {"jump",		ASSEM_JUMP,	INST_JUMP1,		0,	0},
@@ -423,11 +410,16 @@ static const TalInstDesc TalInstructionTable[] = {
     {"lappendArray",	ASSEM_LVT,	(INST_LAPPEND_ARRAY1<<8
 					 | INST_LAPPEND_ARRAY4),2,	1},
     {"lappendArrayStk", ASSEM_1BYTE,	INST_LAPPEND_ARRAY_STK,	3,	1},
+    {"lappendList",	ASSEM_LVT4,	INST_LAPPEND_LIST,	1,	1},
+    {"lappendListArray",ASSEM_LVT4,	INST_LAPPEND_LIST_ARRAY,2,	1},
+    {"lappendListArrayStk", ASSEM_1BYTE,INST_LAPPEND_LIST_ARRAY_STK, 3,	1},
+    {"lappendListStk",	ASSEM_1BYTE,	INST_LAPPEND_LIST_STK,	2,	1},
     {"lappendStk",	ASSEM_1BYTE,	INST_LAPPEND_STK,	2,	1},
     {"le",		ASSEM_1BYTE,	INST_LE,		2,	1},
     {"lindexMulti",	ASSEM_LINDEX_MULTI,
 					INST_LIST_INDEX_MULTI,	INT_MIN,1},
     {"list",		ASSEM_LIST,	INST_LIST,		INT_MIN,1},
+    {"listConcat",	ASSEM_1BYTE,	INST_LIST_CONCAT,	2,	1},
     {"listIn",		ASSEM_1BYTE,	INST_LIST_IN,		2,	1},
     {"listIndex",	ASSEM_1BYTE,	INST_LIST_INDEX,	2,	1},
     {"listIndexImm",	ASSEM_INDEX,	INST_LIST_INDEX_IMM,	1,	1},
@@ -438,7 +430,7 @@ static const TalInstDesc TalInstructionTable[] = {
     {"loadArray",	ASSEM_LVT,	(INST_LOAD_ARRAY1<<8
 					 | INST_LOAD_ARRAY4),	1,	1},
     {"loadArrayStk",	ASSEM_1BYTE,	INST_LOAD_ARRAY_STK,	2,	1},
-    {"loadStk",		ASSEM_1BYTE,	INST_LOAD_SCALAR_STK,	1,	1},
+    {"loadStk",		ASSEM_1BYTE,	INST_LOAD_STK,		1,	1},
     {"lor",		ASSEM_1BYTE,	INST_LOR,		2,	1},
     {"lsetFlat",	ASSEM_LSET_FLAT,INST_LSET_FLAT,		INT_MIN,1},
     {"lsetList",	ASSEM_1BYTE,	INST_LSET_LIST,		3,	1},
@@ -450,6 +442,8 @@ static const TalInstDesc TalInstructionTable[] = {
     {"nop",		ASSEM_1BYTE,	INST_NOP,		0,	0},
     {"not",		ASSEM_1BYTE,	INST_LNOT,		1,	1},
     {"nsupvar",		ASSEM_LVT4,	INST_NSUPVAR,		2,	1},
+    {"numericType",	ASSEM_1BYTE,	INST_NUM_TYPE,		1,	1},
+    {"originCmd",	ASSEM_1BYTE,	INST_ORIGIN_COMMAND,	1,	1},
     {"over",		ASSEM_OVER,	INST_OVER,		INT_MIN,-1-1},
     {"pop",		ASSEM_1BYTE,	INST_POP,		1,	0},
     {"pushReturnCode",	ASSEM_1BYTE,	INST_PUSH_RETURN_CODE,	0,	1},
@@ -457,6 +451,7 @@ static const TalInstDesc TalInstructionTable[] = {
 								0,	1},
     {"pushResult",	ASSEM_1BYTE,	INST_PUSH_RESULT,	0,	1},
     {"regexp",		ASSEM_REGEXP,	INST_REGEXP,		2,	1},
+    {"resolveCmd",	ASSEM_1BYTE,	INST_RESOLVE_COMMAND,	1,	1},
     {"reverse",		ASSEM_REVERSE,	INST_REVERSE,		INT_MIN,-1-0},
     {"rshift",		ASSEM_1BYTE,	INST_RSHIFT,		2,	1},
     {"store",		ASSEM_LVT,	(INST_STORE_SCALAR1<<8
@@ -464,14 +459,31 @@ static const TalInstDesc TalInstructionTable[] = {
     {"storeArray",	ASSEM_LVT,	(INST_STORE_ARRAY1<<8
 					 | INST_STORE_ARRAY4),	2,	1},
     {"storeArrayStk",	ASSEM_1BYTE,	INST_STORE_ARRAY_STK,	3,	1},
-    {"storeStk",	ASSEM_1BYTE,	INST_STORE_SCALAR_STK,	2,	1},
+    {"storeStk",	ASSEM_1BYTE,	INST_STORE_STK,		2,	1},
+    {"strcaseLower",	ASSEM_1BYTE,	INST_STR_LOWER,		1,	1},
+    {"strcaseTitle",	ASSEM_1BYTE,	INST_STR_TITLE,		1,	1},
+    {"strcaseUpper",	ASSEM_1BYTE,	INST_STR_UPPER,		1,	1},
     {"strcmp",		ASSEM_1BYTE,	INST_STR_CMP,		2,	1},
+    {"strcat",		ASSEM_CONCAT1,	INST_STR_CONCAT1,	INT_MIN,1},
     {"streq",		ASSEM_1BYTE,	INST_STR_EQ,		2,	1},
+    {"strfind",		ASSEM_1BYTE,	INST_STR_FIND,		2,	1},
     {"strindex",	ASSEM_1BYTE,	INST_STR_INDEX,		2,	1},
     {"strlen",		ASSEM_1BYTE,	INST_STR_LEN,		1,	1},
+    {"strmap",		ASSEM_1BYTE,	INST_STR_MAP,		3,	1},
     {"strmatch",	ASSEM_BOOL,	INST_STR_MATCH,		2,	1},
     {"strneq",		ASSEM_1BYTE,	INST_STR_NEQ,		2,	1},
+    {"strrange",	ASSEM_1BYTE,	INST_STR_RANGE,		3,	1},
+    {"strreplace",	ASSEM_1BYTE,	INST_STR_REPLACE,	4,	1},
+    {"strrfind",	ASSEM_1BYTE,	INST_STR_FIND_LAST,	2,	1},
+    {"strtrim",		ASSEM_1BYTE,	INST_STR_TRIM,		2,	1},
+    {"strtrimLeft",	ASSEM_1BYTE,	INST_STR_TRIM_LEFT,	2,	1},
+    {"strtrimRight",	ASSEM_1BYTE,	INST_STR_TRIM_RIGHT,	2,	1},
     {"sub",		ASSEM_1BYTE,	INST_SUB,		2,	1},
+    {"tclooClass",	ASSEM_1BYTE,	INST_TCLOO_CLASS,	1,	1},
+    {"tclooIsObject",	ASSEM_1BYTE,	INST_TCLOO_IS_OBJECT,	1,	1},
+    {"tclooNamespace",	ASSEM_1BYTE,	INST_TCLOO_NS,		1,	1},
+    {"tclooSelf",	ASSEM_1BYTE,	INST_TCLOO_SELF,	0,	1},
+    {"tryCvtToBoolean",	ASSEM_1BYTE,	INST_TRY_CVT_TO_BOOLEAN,1,	2},
     {"tryCvtToNumeric",	ASSEM_1BYTE,	INST_TRY_CVT_TO_NUMERIC,1,	1},
     {"uminus",		ASSEM_1BYTE,	INST_UMINUS,		1,	1},
     {"unset",		ASSEM_BOOL_LVT4,INST_UNSET_SCALAR,	0,	0},
@@ -481,6 +493,8 @@ static const TalInstDesc TalInstructionTable[] = {
     {"uplus",		ASSEM_1BYTE,	INST_UPLUS,		1,	1},
     {"upvar",		ASSEM_LVT4,	INST_UPVAR,		2,	1},
     {"variable",	ASSEM_LVT4,	INST_VARIABLE,		1,	0},
+    {"verifyDict",	ASSEM_1BYTE,	INST_DICT_VERIFY,	1,	0},
+    {"yield",		ASSEM_1BYTE,	INST_YIELD,		1,	1},
     {NULL,		0,		0,			0,	0}
 };
 
@@ -496,10 +510,21 @@ static const unsigned char NonThrowingByteCodes[] = {
     INST_PUSH1, INST_PUSH4, INST_POP, INST_DUP,			/* 1-4 */
     INST_JUMP1, INST_JUMP4,					/* 34-35 */
     INST_END_CATCH, INST_PUSH_RESULT, INST_PUSH_RETURN_CODE,	/* 70-72 */
+    INST_LIST,							/* 79 */
     INST_OVER,							/* 95 */
     INST_PUSH_RETURN_OPTIONS,					/* 108 */
     INST_REVERSE,						/* 126 */
-    INST_NOP							/* 132 */
+    INST_NOP,							/* 132 */
+    INST_STR_MAP,						/* 143 */
+    INST_STR_FIND,						/* 144 */
+    INST_COROUTINE_NAME,					/* 149 */
+    INST_NS_CURRENT,						/* 151 */
+    INST_INFO_LEVEL_NUM,					/* 152 */
+    INST_RESOLVE_COMMAND,					/* 154 */
+    INST_STR_TRIM, INST_STR_TRIM_LEFT, INST_STR_TRIM_RIGHT,	/* 166-168 */
+    INST_CONCAT_STK,						/* 169 */
+    INST_STR_UPPER, INST_STR_LOWER, INST_STR_TITLE,		/* 170-172 */
+    INST_NUM_TYPE						/* 180 */
 };
 
 /*
@@ -647,7 +672,7 @@ BBEmitOpcode(
     }
 
     TclEmitInt1(op, envPtr);
-    envPtr->atCmdStart = ((op) == INST_START_CMD);
+    TclUpdateAtCmdStart(op, envPtr);
     BBUpdateStackReqs(bbPtr, tblIdx, count);
 }
 
@@ -679,7 +704,7 @@ BBEmitInstInt4(
  * BBEmitInst1or4 --
  *
  *	Emits a 1- or 4-byte operation according to the magnitude of the
- *	operand
+ *	operand.
  *
  *-----------------------------------------------------------------------------
  */
@@ -708,7 +733,7 @@ BBEmitInst1or4(
     } else {
 	TclEmitInt4(param, envPtr);
     }
-    envPtr->atCmdStart = ((op) == INST_START_CMD);
+    TclUpdateAtCmdStart(op, envPtr);
     BBUpdateStackReqs(bbPtr, tblIdx, count);
 }
 
@@ -772,12 +797,10 @@ TclNRAssembleObjCmd(
 
     if (codePtr == NULL) {
 	Tcl_AddErrorInfo(interp, "\n    (\"");
-	Tcl_AddErrorInfo(interp, Tcl_GetString(objv[0]));
+	Tcl_AppendObjToErrorInfo(interp, objv[0]);
 	Tcl_AddErrorInfo(interp, "\" body, line ");
 	backtrace = Tcl_NewIntObj(Tcl_GetErrorLine(interp));
-	Tcl_IncrRefCount(backtrace);
-	Tcl_AddErrorInfo(interp, Tcl_GetString(backtrace));
-	Tcl_DecrRefCount(backtrace);
+	Tcl_AppendObjToErrorInfo(interp, backtrace);
 	Tcl_AddErrorInfo(interp, ")");
 	return TCL_ERROR;
     }
@@ -815,16 +838,11 @@ CompileAssembleObj(
     CompileEnv compEnv;		/* Compilation environment structure */
     register ByteCode *codePtr = NULL;
 				/* Bytecode resulting from the assembly */
-    register const AuxData * auxDataPtr;
-				/* Pointer to an auxiliary data element
-				 * in a compilation environment being
-				 * destroyed. */
     Namespace* namespacePtr;	/* Namespace in which variable and command
 				 * names in the bytecode resolve */
     int status;			/* Status return from Tcl_AssembleCode */
     const char* source;		/* String representation of the source code */
     int sourceLen;		/* Length of the source code in bytes */
-    int i;
 
 
     /*
@@ -834,7 +852,7 @@ CompileAssembleObj(
 
     if (objPtr->typePtr == &assembleCodeType) {
 	namespacePtr = iPtr->varFramePtr->nsPtr;
-	codePtr = objPtr->internalRep.otherValuePtr;
+	codePtr = objPtr->internalRep.twoPtrValue.ptr1;
 	if (((Interp *) *codePtr->interpHandle == iPtr)
 		&& (codePtr->compileEpoch == iPtr->compileEpoch)
 		&& (codePtr->nsPtr == namespacePtr)
@@ -862,44 +880,6 @@ CompileAssembleObj(
 	/*
 	 * Assembly failed. Clean up and report the error.
 	 */
-
-	/*
-	 * Free any literals that were constructed for the assembly.
-	 */
-	for (i = 0; i < compEnv.literalArrayNext; i++) {
-	    TclReleaseLiteral(interp, compEnv.literalArrayPtr[i].objPtr);
-	}
-
-	/*
-	 * Free any auxiliary data that was attached to the bytecode
-	 * under construction.
-	 */
-
-	for (i = 0; i < compEnv.auxDataArrayNext; i++) {
-	    auxDataPtr = compEnv.auxDataArrayPtr + i;
-	    if (auxDataPtr->type->freeProc != NULL) {
-		(auxDataPtr->type->freeProc)(auxDataPtr->clientData);
-	    }
-	}
-
-	/*
-	 * TIP 280. If there is extended command line information,
-	 * we need to clean it up.
-	 */
-
-	if (compEnv.extCmdMapPtr != NULL) {
-	    if (compEnv.extCmdMapPtr->type == TCL_LOCATION_SOURCE) {
-		Tcl_DecrRefCount(compEnv.extCmdMapPtr->path);
-	    }
-	    for (i = 0; i < compEnv.extCmdMapPtr->nuloc; ++i) {
-		ckfree(compEnv.extCmdMapPtr->loc[i].line);
-	    }
-	    if (compEnv.extCmdMapPtr->loc != NULL) {
-		ckfree(compEnv.extCmdMapPtr->loc);
-	    }
-	    Tcl_DeleteHashTable(&(compEnv.extCmdMapPtr->litInfo));
-	}
-
 	TclFreeCompileEnv(&compEnv);
 	return NULL;
     }
@@ -919,7 +899,7 @@ CompileAssembleObj(
      * Record the local variable context to which the bytecode pertains
      */
 
-    codePtr = objPtr->internalRep.otherValuePtr;
+    codePtr = objPtr->internalRep.twoPtrValue.ptr1;
     if (iPtr->varFramePtr->localCachePtr) {
 	codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr;
 	codePtr->localCachePtr->refCount++;
@@ -972,6 +952,10 @@ TclCompileAssembleCmd(
 {
     Tcl_Token *tokenPtr;	/* Token in the input script */
 
+    int numCommands = envPtr->numCommands;
+    int offset = envPtr->codeNext - envPtr->codeStart;
+    int depth = envPtr->currStackDepth;
+
     /*
      * Make sure that the command has a single arg that is a simple word.
      */
@@ -985,10 +969,23 @@ TclCompileAssembleCmd(
     }
 
     /*
-     * Compile the code and return any error from the compilation.
+     * Compile the code and convert any error from the compilation into
+     * bytecode reporting the error;
      */
 
-    return TclAssembleCode(envPtr, tokenPtr[1].start, tokenPtr[1].size, 0);
+    if (TCL_ERROR == TclAssembleCode(envPtr, tokenPtr[1].start,
+	    tokenPtr[1].size, TCL_EVAL_DIRECT)) {
+
+	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
+		"\n    (\"%.*s\" body, line %d)",
+		parsePtr->tokenPtr->size, parsePtr->tokenPtr->start,
+		Tcl_GetErrorLine(interp)));
+	envPtr->numCommands = numCommands;
+	envPtr->codeNext = envPtr->codeStart + offset;
+	envPtr->currStackDepth = depth;
+	TclCompileSyntaxError(interp, envPtr);
+    }
+    return TCL_OK;
 }
 
 /*
@@ -1027,8 +1024,6 @@ TclAssembleCode(
 
     const char* instPtr = codePtr;
 				/* Where to start looking for a line of code */
-    int instLen;		/* Length in bytes of the current line of
-				 * code */
     const char* nextPtr;	/* Pointer to the end of the line of code */
     int bytesLeft = codeLen;	/* Number of bytes of source code remaining to
 				 * be parsed */
@@ -1042,10 +1037,6 @@ TclAssembleCode(
 	 */
 
 	status = Tcl_ParseCommand(interp, instPtr, bytesLeft, 0, parsePtr);
-	instLen = parsePtr->commandSize;
-	if (parsePtr->term == parsePtr->commandStart + instLen - 1) {
-	    --instLen;
-	}
 
 	/*
 	 * Report errors in the parse.
@@ -1054,7 +1045,7 @@ TclAssembleCode(
 	if (status != TCL_OK) {
 	    if (flags & TCL_EVAL_DIRECT) {
 		Tcl_LogCommandInfo(interp, codePtr, parsePtr->commandStart,
-			instLen);
+			parsePtr->term + 1 - parsePtr->commandStart);
 	    }
 	    FreeAssemblyEnv(assemEnvPtr);
 	    return TCL_ERROR;
@@ -1074,6 +1065,13 @@ TclAssembleCode(
 	 */
 
 	if (parsePtr->numWords > 0) {
+	    int instLen = parsePtr->commandSize;
+		    /* Length in bytes of the current command */
+
+	    if (parsePtr->term == parsePtr->commandStart + instLen - 1) {
+		--instLen;
+	    }
+
 	    /*
 	     * If tracing, show each line assembled as it happens.
 	     */
@@ -1149,7 +1147,7 @@ NewAssemblyEnv(
 
     assemEnvPtr->envPtr = envPtr;
     assemEnvPtr->parsePtr = parsePtr;
-    assemEnvPtr->cmdLine = envPtr->line;
+    assemEnvPtr->cmdLine = 1;
     assemEnvPtr->clNext = envPtr->clNext;
 
     /*
@@ -2641,6 +2639,7 @@ AllocBB(
     bb->minStackDepth = 0;
     bb->maxStackDepth = 0;
     bb->finalStackDepth = 0;
+    bb->catchDepth = 0;
     bb->enclosingCatch = NULL;
     bb->foreignExceptionBase = -1;
     bb->foreignExceptionCount = 0;
@@ -3071,7 +3070,7 @@ ResolveJumpTableTargets(
     auxDataIndex = TclGetInt4AtPtr(envPtr->codeStart + bbPtr->jumpOffset + 1);
     DEBUG_PRINT("bbPtr = %p jumpOffset = %d auxDataIndex = %d\n",
 	    bbPtr, bbPtr->jumpOffset, auxDataIndex);
-    realJumpTablePtr = envPtr->auxDataArrayPtr[auxDataIndex].clientData;
+    realJumpTablePtr = TclFetchAuxData(envPtr, auxDataIndex);
     realJumpHashPtr = &realJumpTablePtr->hashTable;
 
     /*
@@ -4244,11 +4243,11 @@ AddBasicBlockRangeToErrorInfo(
     Tcl_AddErrorInfo(interp, "\n    in assembly code between lines ");
     lineNo = Tcl_NewIntObj(bbPtr->startLine);
     Tcl_IncrRefCount(lineNo);
-    Tcl_AddErrorInfo(interp, Tcl_GetString(lineNo));
+    Tcl_AppendObjToErrorInfo(interp, lineNo);
     Tcl_AddErrorInfo(interp, " and ");
     if (bbPtr->successor1 != NULL) {
 	Tcl_SetIntObj(lineNo, bbPtr->successor1->startLine);
-	Tcl_AddErrorInfo(interp, Tcl_GetString(lineNo));
+	Tcl_AppendObjToErrorInfo(interp, lineNo);
     } else {
 	Tcl_AddErrorInfo(interp, "end of assembly code");
     }
@@ -4312,14 +4311,13 @@ static void
 FreeAssembleCodeInternalRep(
     Tcl_Obj *objPtr)
 {
-    ByteCode *codePtr = objPtr->internalRep.otherValuePtr;
+    ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1;
 
     codePtr->refCount--;
     if (codePtr->refCount <= 0) {
 	TclCleanupByteCode(codePtr);
     }
     objPtr->typePtr = NULL;
-    objPtr->internalRep.otherValuePtr = NULL;
 }
 
 /*
diff --git a/generic/tclBasic.c b/generic/tclBasic.c
index db365e3..1220239 100644
--- a/generic/tclBasic.c
+++ b/generic/tclBasic.c
@@ -127,17 +127,12 @@ static Tcl_ObjCmdProc	ExprSqrtFunc;
 static Tcl_ObjCmdProc	ExprSrandFunc;
 static Tcl_ObjCmdProc	ExprUnaryFunc;
 static Tcl_ObjCmdProc	ExprWideFunc;
-static Tcl_Obj *	GetCommandSource(Interp *iPtr, int objc,
-			    Tcl_Obj *const objv[], int lookup);
 static void		MathFuncWrongNumArgs(Tcl_Interp *interp, int expected,
 			    int actual, Tcl_Obj *const *objv);
-static Tcl_NRPostProc	NRCoroutineActivateCallback;
 static Tcl_NRPostProc	NRCoroutineCallerCallback;
 static Tcl_NRPostProc	NRCoroutineExitCallback;
 static int NRCommand(ClientData data[], Tcl_Interp *interp, int result);
 
-static Tcl_NRPostProc	NRRunObjProc;
-static Tcl_NRPostProc	NRTailcallEval;
 static Tcl_ObjCmdProc	OldMathFuncProc;
 static void		OldMathFuncDeleteProc(ClientData clientData);
 static void		ProcessUnexpectedResult(Tcl_Interp *interp,
@@ -151,8 +146,8 @@ static inline Command *	TEOV_LookupCmdFromObj(Tcl_Interp *interp,
 static int		TEOV_NotFound(Tcl_Interp *interp, int objc,
 			    Tcl_Obj *const objv[], Namespace *lookupNsPtr);
 static int		TEOV_RunEnterTraces(Tcl_Interp *interp,
-			    Command **cmdPtrPtr, int objc,
-			    Tcl_Obj *const objv[], Namespace *lookupNsPtr);
+			    Command **cmdPtrPtr, Tcl_Obj *commandPtr, int objc,
+			    Tcl_Obj *const objv[]);
 static Tcl_NRPostProc	RewindCoroutineCallback;
 static Tcl_NRPostProc	TailcallCleanup;
 static Tcl_NRPostProc	TEOEx_ByteCodeCallback;
@@ -162,11 +157,11 @@ static Tcl_NRPostProc	TEOV_Exception;
 static Tcl_NRPostProc	TEOV_NotFoundCallback;
 static Tcl_NRPostProc	TEOV_RestoreVarFrame;
 static Tcl_NRPostProc	TEOV_RunLeaveTraces;
-static Tcl_NRPostProc	YieldToCallback;
+static Tcl_NRPostProc	EvalObjvCore;
+static Tcl_NRPostProc	Dispatch;
 
-static void	        ClearTailcall(Tcl_Interp *interp,
-			    struct NRE_callback *tailcallPtr);
 static Tcl_ObjCmdProc NRCoroInjectObjCmd;
+static Tcl_NRPostProc NRPostInvoke;
 
 MODULE_SCOPE const TclStubs tclStubs;
 
@@ -190,11 +185,16 @@ typedef struct {
     Tcl_ObjCmdProc *objProc;	/* Object-based function for command. */
     CompileProc *compileProc;	/* Function called to compile command. */
     Tcl_ObjCmdProc *nreProc;	/* NR-based function for command */
-    int isSafe;			/* If non-zero, command will be present in
-				 * safe interpreter. Otherwise it will be
-				 * hidden. */
+    int flags;			/* Various flag bits, as defined below. */
 } CmdInfo;
 
+#define CMD_IS_SAFE         1   /* Whether this command is part of the set of
+                                 * commands present by default in a safe
+                                 * interpreter. */
+/* CMD_COMPILES_EXPANDED - Whether the compiler for this command can handle
+ * expansion for itself rather than needing the generic layer to take care of
+ * it for it. Defined in tclInt.h. */
+
 /*
  * The built-in commands, and the functions that implement them:
  */
@@ -204,94 +204,95 @@ static const CmdInfo builtInCmds[] = {
      * Commands in the generic core.
      */
 
-    {"append",		Tcl_AppendObjCmd,	TclCompileAppendCmd,	NULL,	1},
-    {"apply",		Tcl_ApplyObjCmd,	NULL,			TclNRApplyObjCmd,	1},
-    {"break",		Tcl_BreakObjCmd,	TclCompileBreakCmd,	NULL,	1},
+    {"append",		Tcl_AppendObjCmd,	TclCompileAppendCmd,	NULL,	CMD_IS_SAFE},
+    {"apply",		Tcl_ApplyObjCmd,	NULL,			TclNRApplyObjCmd,	CMD_IS_SAFE},
+    {"break",		Tcl_BreakObjCmd,	TclCompileBreakCmd,	NULL,	CMD_IS_SAFE},
 #ifndef EXCLUDE_OBSOLETE_COMMANDS
-    {"case",		Tcl_CaseObjCmd,		NULL,			NULL,	1},
+    {"case",		Tcl_CaseObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
 #endif
-    {"catch",		Tcl_CatchObjCmd,	TclCompileCatchCmd,	TclNRCatchObjCmd,	1},
-    {"concat",		Tcl_ConcatObjCmd,	NULL,			NULL,	1},
-    {"continue",	Tcl_ContinueObjCmd,	TclCompileContinueCmd,	NULL,	1},
-    {"coroutine",	NULL,			NULL,			TclNRCoroutineObjCmd,	1},
-    {"error",		Tcl_ErrorObjCmd,	TclCompileErrorCmd,	NULL,	1},
-    {"eval",		Tcl_EvalObjCmd,		NULL,			TclNREvalObjCmd,	1},
-    {"expr",		Tcl_ExprObjCmd,		TclCompileExprCmd,	TclNRExprObjCmd,	1},
-    {"for",		Tcl_ForObjCmd,		TclCompileForCmd,	TclNRForObjCmd,	1},
-    {"foreach",		Tcl_ForeachObjCmd,	TclCompileForeachCmd,	TclNRForeachCmd,	1},
-    {"format",		Tcl_FormatObjCmd,	NULL,			NULL,	1},
-    {"global",		Tcl_GlobalObjCmd,	TclCompileGlobalCmd,	NULL,	1},
-    {"if",		Tcl_IfObjCmd,		TclCompileIfCmd,	TclNRIfObjCmd,	1},
-    {"incr",		Tcl_IncrObjCmd,		TclCompileIncrCmd,	NULL,	1},
-    {"join",		Tcl_JoinObjCmd,		NULL,			NULL,	1},
-    {"lappend",		Tcl_LappendObjCmd,	TclCompileLappendCmd,	NULL,	1},
-    {"lassign",		Tcl_LassignObjCmd,	TclCompileLassignCmd,	NULL,	1},
-    {"lindex",		Tcl_LindexObjCmd,	TclCompileLindexCmd,	NULL,	1},
-    {"linsert",		Tcl_LinsertObjCmd,	NULL,			NULL,	1},
-    {"list",		Tcl_ListObjCmd,		TclCompileListCmd,	NULL,	1},
-    {"llength",		Tcl_LlengthObjCmd,	TclCompileLlengthCmd,	NULL,	1},
-    {"lrange",		Tcl_LrangeObjCmd,	TclCompileLrangeCmd,	NULL,	1},
-    {"lrepeat",		Tcl_LrepeatObjCmd,	NULL,			NULL,	1},
-    {"lreplace",	Tcl_LreplaceObjCmd,	TclCompileLreplaceCmd,	NULL,	1},
-    {"lreverse",	Tcl_LreverseObjCmd,	NULL,			NULL,	1},
-    {"lsearch",		Tcl_LsearchObjCmd,	NULL,			NULL,	1},
-    {"lset",		Tcl_LsetObjCmd,		TclCompileLsetCmd,	NULL,	1},
-    {"lsort",		Tcl_LsortObjCmd,	NULL,			NULL,	1},
-    {"package",		Tcl_PackageObjCmd,	NULL,			NULL,	1},
-    {"proc",		Tcl_ProcObjCmd,		NULL,			NULL,	1},
-    {"regexp",		Tcl_RegexpObjCmd,	TclCompileRegexpCmd,	NULL,	1},
-    {"regsub",		Tcl_RegsubObjCmd,	NULL,			NULL,	1},
-    {"rename",		Tcl_RenameObjCmd,	NULL,			NULL,	1},
-    {"return",		Tcl_ReturnObjCmd,	TclCompileReturnCmd,	NULL,	1},
-    {"scan",		Tcl_ScanObjCmd,		NULL,			NULL,	1},
-    {"set",		Tcl_SetObjCmd,		TclCompileSetCmd,	NULL,	1},
-    {"split",		Tcl_SplitObjCmd,	NULL,			NULL,	1},
-    {"subst",		Tcl_SubstObjCmd,	TclCompileSubstCmd,	TclNRSubstObjCmd,	1},
-    {"switch",		Tcl_SwitchObjCmd,	TclCompileSwitchCmd,	TclNRSwitchObjCmd, 1},
-    {"tailcall",	NULL,			NULL,			TclNRTailcallObjCmd,	1},
-    {"throw",		Tcl_ThrowObjCmd,	TclCompileThrowCmd,	NULL,	1},
-    {"trace",		Tcl_TraceObjCmd,	NULL,			NULL,	1},
-    {"try",		Tcl_TryObjCmd,		TclCompileTryCmd,	TclNRTryObjCmd,	1},
-    {"unset",		Tcl_UnsetObjCmd,	TclCompileUnsetCmd,	NULL,	1},
-    {"uplevel",		Tcl_UplevelObjCmd,	NULL,			TclNRUplevelObjCmd,	1},
-    {"upvar",		Tcl_UpvarObjCmd,	TclCompileUpvarCmd,	NULL,	1},
-    {"variable",	Tcl_VariableObjCmd,	TclCompileVariableCmd,	NULL,	1},
-    {"while",		Tcl_WhileObjCmd,	TclCompileWhileCmd,	TclNRWhileObjCmd,	1},
-    {"yield",		NULL,			NULL,			TclNRYieldObjCmd,	1},
-    {"yieldto",		NULL,			NULL,			TclNRYieldToObjCmd,	1},
+    {"catch",		Tcl_CatchObjCmd,	TclCompileCatchCmd,	TclNRCatchObjCmd,	CMD_IS_SAFE},
+    {"concat",		Tcl_ConcatObjCmd,	TclCompileConcatCmd,	NULL,	CMD_IS_SAFE},
+    {"continue",	Tcl_ContinueObjCmd,	TclCompileContinueCmd,	NULL,	CMD_IS_SAFE},
+    {"coroutine",	NULL,			NULL,			TclNRCoroutineObjCmd,	CMD_IS_SAFE},
+    {"error",		Tcl_ErrorObjCmd,	TclCompileErrorCmd,	NULL,	CMD_IS_SAFE},
+    {"eval",		Tcl_EvalObjCmd,		NULL,			TclNREvalObjCmd,	CMD_IS_SAFE},
+    {"expr",		Tcl_ExprObjCmd,		TclCompileExprCmd,	TclNRExprObjCmd,	CMD_IS_SAFE},
+    {"for",		Tcl_ForObjCmd,		TclCompileForCmd,	TclNRForObjCmd,	CMD_IS_SAFE},
+    {"foreach",		Tcl_ForeachObjCmd,	TclCompileForeachCmd,	TclNRForeachCmd,	CMD_IS_SAFE},
+    {"format",		Tcl_FormatObjCmd,	TclCompileFormatCmd,	NULL,	CMD_IS_SAFE},
+    {"global",		Tcl_GlobalObjCmd,	TclCompileGlobalCmd,	NULL,	CMD_IS_SAFE},
+    {"if",		Tcl_IfObjCmd,		TclCompileIfCmd,	TclNRIfObjCmd,	CMD_IS_SAFE},
+    {"incr",		Tcl_IncrObjCmd,		TclCompileIncrCmd,	NULL,	CMD_IS_SAFE},
+    {"join",		Tcl_JoinObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"lappend",		Tcl_LappendObjCmd,	TclCompileLappendCmd,	NULL,	CMD_IS_SAFE},
+    {"lassign",		Tcl_LassignObjCmd,	TclCompileLassignCmd,	NULL,	CMD_IS_SAFE},
+    {"lindex",		Tcl_LindexObjCmd,	TclCompileLindexCmd,	NULL,	CMD_IS_SAFE},
+    {"linsert",		Tcl_LinsertObjCmd,	TclCompileLinsertCmd,	NULL,	CMD_IS_SAFE},
+    {"list",		Tcl_ListObjCmd,		TclCompileListCmd,	NULL,	CMD_IS_SAFE|CMD_COMPILES_EXPANDED},
+    {"llength",		Tcl_LlengthObjCmd,	TclCompileLlengthCmd,	NULL,	CMD_IS_SAFE},
+    {"lmap",		Tcl_LmapObjCmd,		TclCompileLmapCmd,	TclNRLmapCmd,	CMD_IS_SAFE},
+    {"lrange",		Tcl_LrangeObjCmd,	TclCompileLrangeCmd,	NULL,	CMD_IS_SAFE},
+    {"lrepeat",		Tcl_LrepeatObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"lreplace",	Tcl_LreplaceObjCmd,	TclCompileLreplaceCmd,	NULL,	CMD_IS_SAFE},
+    {"lreverse",	Tcl_LreverseObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"lsearch",		Tcl_LsearchObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"lset",		Tcl_LsetObjCmd,		TclCompileLsetCmd,	NULL,	CMD_IS_SAFE},
+    {"lsort",		Tcl_LsortObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"package",		Tcl_PackageObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"proc",		Tcl_ProcObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"regexp",		Tcl_RegexpObjCmd,	TclCompileRegexpCmd,	NULL,	CMD_IS_SAFE},
+    {"regsub",		Tcl_RegsubObjCmd,	TclCompileRegsubCmd,	NULL,	CMD_IS_SAFE},
+    {"rename",		Tcl_RenameObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"return",		Tcl_ReturnObjCmd,	TclCompileReturnCmd,	NULL,	CMD_IS_SAFE},
+    {"scan",		Tcl_ScanObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"set",		Tcl_SetObjCmd,		TclCompileSetCmd,	NULL,	CMD_IS_SAFE},
+    {"split",		Tcl_SplitObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"subst",		Tcl_SubstObjCmd,	TclCompileSubstCmd,	TclNRSubstObjCmd,	CMD_IS_SAFE},
+    {"switch",		Tcl_SwitchObjCmd,	TclCompileSwitchCmd,	TclNRSwitchObjCmd, CMD_IS_SAFE},
+    {"tailcall",	NULL,			TclCompileTailcallCmd,	TclNRTailcallObjCmd,	CMD_IS_SAFE},
+    {"throw",		Tcl_ThrowObjCmd,	TclCompileThrowCmd,	NULL,	CMD_IS_SAFE},
+    {"trace",		Tcl_TraceObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"try",		Tcl_TryObjCmd,		TclCompileTryCmd,	TclNRTryObjCmd,	CMD_IS_SAFE},
+    {"unset",		Tcl_UnsetObjCmd,	TclCompileUnsetCmd,	NULL,	CMD_IS_SAFE},
+    {"uplevel",		Tcl_UplevelObjCmd,	NULL,			TclNRUplevelObjCmd,	CMD_IS_SAFE},
+    {"upvar",		Tcl_UpvarObjCmd,	TclCompileUpvarCmd,	NULL,	CMD_IS_SAFE},
+    {"variable",	Tcl_VariableObjCmd,	TclCompileVariableCmd,	NULL,	CMD_IS_SAFE},
+    {"while",		Tcl_WhileObjCmd,	TclCompileWhileCmd,	TclNRWhileObjCmd,	CMD_IS_SAFE},
+    {"yield",		NULL,			TclCompileYieldCmd,	TclNRYieldObjCmd,	CMD_IS_SAFE},
+    {"yieldto",		NULL,			TclCompileYieldToCmd,	TclNRYieldToObjCmd,	CMD_IS_SAFE},
 
     /*
      * Commands in the OS-interface. Note that many of these are unsafe.
      */
 
-    {"after",		Tcl_AfterObjCmd,	NULL,			NULL,	1},
+    {"after",		Tcl_AfterObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
     {"cd",		Tcl_CdObjCmd,		NULL,			NULL,	0},
-    {"close",		Tcl_CloseObjCmd,	NULL,			NULL,	1},
-    {"eof",		Tcl_EofObjCmd,		NULL,			NULL,	1},
+    {"close",		Tcl_CloseObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"eof",		Tcl_EofObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
     {"encoding",	Tcl_EncodingObjCmd,	NULL,			NULL,	0},
     {"exec",		Tcl_ExecObjCmd,		NULL,			NULL,	0},
     {"exit",		Tcl_ExitObjCmd,		NULL,			NULL,	0},
-    {"fblocked",	Tcl_FblockedObjCmd,	NULL,			NULL,	1},
+    {"fblocked",	Tcl_FblockedObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
     {"fconfigure",	Tcl_FconfigureObjCmd,	NULL,			NULL,	0},
-    {"fcopy",		Tcl_FcopyObjCmd,	NULL,			NULL,	1},
-    {"fileevent",	Tcl_FileEventObjCmd,	NULL,			NULL,	1},
-    {"flush",		Tcl_FlushObjCmd,	NULL,			NULL,	1},
-    {"gets",		Tcl_GetsObjCmd,		NULL,			NULL,	1},
+    {"fcopy",		Tcl_FcopyObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"fileevent",	Tcl_FileEventObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"flush",		Tcl_FlushObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"gets",		Tcl_GetsObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
     {"glob",		Tcl_GlobObjCmd,		NULL,			NULL,	0},
     {"load",		Tcl_LoadObjCmd,		NULL,			NULL,	0},
     {"open",		Tcl_OpenObjCmd,		NULL,			NULL,	0},
-    {"pid",		Tcl_PidObjCmd,		NULL,			NULL,	1},
-    {"puts",		Tcl_PutsObjCmd,		NULL,			NULL,	1},
+    {"pid",		Tcl_PidObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"puts",		Tcl_PutsObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
     {"pwd",		Tcl_PwdObjCmd,		NULL,			NULL,	0},
-    {"read",		Tcl_ReadObjCmd,		NULL,			NULL,	1},
-    {"seek",		Tcl_SeekObjCmd,		NULL,			NULL,	1},
+    {"read",		Tcl_ReadObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"seek",		Tcl_SeekObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
     {"socket",		Tcl_SocketObjCmd,	NULL,			NULL,	0},
     {"source",		Tcl_SourceObjCmd,	NULL,			TclNRSourceObjCmd,	0},
-    {"tell",		Tcl_TellObjCmd,		NULL,			NULL,	1},
-    {"time",		Tcl_TimeObjCmd,		NULL,			NULL,	1},
+    {"tell",		Tcl_TellObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"time",		Tcl_TimeObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
     {"unload",		Tcl_UnloadObjCmd,	NULL,			NULL,	0},
-    {"update",		Tcl_UpdateObjCmd,	NULL,			NULL,	1},
-    {"vwait",		Tcl_VwaitObjCmd,	NULL,			NULL,	1},
+    {"update",		Tcl_UpdateObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"vwait",		Tcl_VwaitObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
     {NULL,		NULL,			NULL,			NULL,	0}
 };
 
@@ -485,6 +486,18 @@ Tcl_CreateInterp(void)
 	Tcl_Panic("Tcl_CallFrame must not be smaller than CallFrame");
     }
 
+#if defined(_WIN32) && !defined(_WIN64)
+    if (sizeof(time_t) != 4) {
+	/*NOTREACHED*/
+	Tcl_Panic("<time.h> is not compatible with MSVC");
+    }
+    if ((TclOffset(Tcl_StatBuf,st_atime) != 32)
+	    || (TclOffset(Tcl_StatBuf,st_ctime) != 40)) {
+	/*NOTREACHED*/
+	Tcl_Panic("<sys/stat.h> is not compatible with MSVC");
+    }
+#endif
+
     if (cancelTableInitialized == 0) {
 	Tcl_MutexLock(&cancelLock);
 	if (cancelTableInitialized == 0) {
@@ -513,6 +526,9 @@ Tcl_CreateInterp(void)
     iPtr->hiddenCmdTablePtr = NULL;
     iPtr->interpInfo = NULL;
 
+    TCL_CT_ASSERT(sizeof(iPtr->extra) <= sizeof(Tcl_HashTable));
+    iPtr->extra.optimizer = TclOptimizeBytecode;
+
     iPtr->numLevels = 0;
     iPtr->maxNestingDepth = MAX_NESTING_DEPTH;
     iPtr->framePtr = NULL;	/* Initialise as soon as :: is available */
@@ -772,6 +788,9 @@ Tcl_CreateInterp(void)
 	    cmdPtr->deleteProc = NULL;
 	    cmdPtr->deleteData = NULL;
 	    cmdPtr->flags = 0;
+            if (cmdInfoPtr->flags & CMD_COMPILES_EXPANDED) {
+                cmdPtr->flags |= CMD_COMPILES_EXPANDED;
+            }
 	    cmdPtr->importRefPtr = NULL;
 	    cmdPtr->tracePtr = NULL;
 	    cmdPtr->nreProc = cmdInfoPtr->nreProc;
@@ -821,7 +840,9 @@ Tcl_CreateInterp(void)
      */
 
     Tcl_CreateObjCommand(interp, "::tcl::unsupported::disassemble",
-	    Tcl_DisassembleObjCmd, NULL, NULL);
+	    Tcl_DisassembleObjCmd, INT2PTR(0), NULL);
+    Tcl_CreateObjCommand(interp, "::tcl::unsupported::getbytecode",
+	    Tcl_DisassembleObjCmd, INT2PTR(1), NULL);
     Tcl_CreateObjCommand(interp, "::tcl::unsupported::representation",
 	    Tcl_RepresentationCmd, NULL, NULL);
 
@@ -1004,7 +1025,7 @@ TclHideUnsafeCommands(
 	return TCL_ERROR;
     }
     for (cmdInfoPtr = builtInCmds; cmdInfoPtr->name != NULL; cmdInfoPtr++) {
-	if (!cmdInfoPtr->isSafe) {
+	if (!(cmdInfoPtr->flags & CMD_IS_SAFE)) {
 	    Tcl_HideCommand(interp, cmdInfoPtr->name, cmdInfoPtr->name);
 	}
     }
@@ -1593,8 +1614,6 @@ DeleteInterpProc(
 	    ckfree(eclPtr->loc);
 	}
 
-	Tcl_DeleteHashTable(&eclPtr->litInfo);
-
 	ckfree(eclPtr);
 	Tcl_DeleteHashEntry(hPtr);
     }
@@ -2068,10 +2087,19 @@ Tcl_CreateCommand(
 	 */
 
 	cmdPtr = Tcl_GetHashValue(hPtr);
-	oldRefPtr = cmdPtr->importRefPtr;
-	cmdPtr->importRefPtr = NULL;
+	cmdPtr->refCount++;
+	if (cmdPtr->importRefPtr) {
+	    cmdPtr->flags |= CMD_REDEF_IN_PROGRESS;
+	}
 
 	Tcl_DeleteCommandFromToken(interp, (Tcl_Command) cmdPtr);
+
+	if (cmdPtr->flags & CMD_REDEF_IN_PROGRESS) {
+	    oldRefPtr = cmdPtr->importRefPtr;
+	    cmdPtr->importRefPtr = NULL;
+	}
+	TclCleanupCommandMacro(cmdPtr);
+
 	hPtr = Tcl_CreateHashEntry(&nsPtr->cmdTable, tail, &isNew);
 	if (!isNew) {
 	    /*
@@ -2160,12 +2188,9 @@ Tcl_CreateCommand(
  *	future calls to Tcl_GetCommandName.
  *
  * Side effects:
- *	If no command named "cmdName" already exists for interp, one is
- *	created. Otherwise, if a command does exist, then if the object-based
- *	Tcl_ObjCmdProc is TclInvokeStringCommand, we assume Tcl_CreateCommand
- *	was called previously for the same command and just set its
- *	Tcl_ObjCmdProc to the argument "proc"; otherwise, we delete the old
- *	command.
+ *	If a command named "cmdName" already exists for interp, it is
+ *	first deleted.  Then the new command is created from the arguments.
+ *	[***] (See below for exception).
  *
  *	In the future, during bytecode evaluation when "cmdName" is seen as
  *	the name of a command by Tcl_EvalObj or Tcl_Eval, the object-based
@@ -2232,17 +2257,22 @@ Tcl_CreateObjCommand(
     if (!isNew) {
 	cmdPtr = Tcl_GetHashValue(hPtr);
 
+	/* Command already exists. */
+
 	/*
-	 * Command already exists. If its object-based Tcl_ObjCmdProc is
-	 * TclInvokeStringCommand, we just set its Tcl_ObjCmdProc to the
-	 * argument "proc". Otherwise, we delete the old command.
+	 * [***] This is wrong.  See Tcl Bug a16752c252.  
+	 * However, this buggy behavior is kept under particular
+	 * circumstances to accommodate deployed binaries of the
+	 * "tclcompiler" program. http://sourceforge.net/projects/tclpro/
+	 * that crash if the bug is fixed.
 	 */
 
-	if (cmdPtr->objProc == TclInvokeStringCommand) {
+	if (cmdPtr->objProc == TclInvokeStringCommand
+		&& cmdPtr->clientData == clientData
+		&& cmdPtr->deleteData == clientData
+		&& cmdPtr->deleteProc == deleteProc) {
 	    cmdPtr->objProc = proc;
 	    cmdPtr->objClientData = clientData;
-	    cmdPtr->deleteProc = deleteProc;
-	    cmdPtr->deleteData = clientData;
 	    return (Tcl_Command) cmdPtr;
 	}
 
@@ -2253,10 +2283,19 @@ Tcl_CreateObjCommand(
 	 * intact.
 	 */
 
-	oldRefPtr = cmdPtr->importRefPtr;
-	cmdPtr->importRefPtr = NULL;
+	cmdPtr->refCount++;
+	if (cmdPtr->importRefPtr) {
+	    cmdPtr->flags |= CMD_REDEF_IN_PROGRESS;
+	}
 
 	Tcl_DeleteCommandFromToken(interp, (Tcl_Command) cmdPtr);
+
+	if (cmdPtr->flags & CMD_REDEF_IN_PROGRESS) {
+	    oldRefPtr = cmdPtr->importRefPtr;
+	    cmdPtr->importRefPtr = NULL;
+	}
+	TclCleanupCommandMacro(cmdPtr);
+
 	hPtr = Tcl_CreateHashEntry(&nsPtr->cmdTable, tail, &isNew);
 	if (!isNew) {
 	    /*
@@ -2395,8 +2434,8 @@ TclInvokeStringCommand(
  *	A standard Tcl string result value.
  *
  * Side effects:
- *	Besides those side effects of the called Tcl_CmdProc,
- *	TclInvokeStringCommand allocates and frees storage.
+ *	Besides those side effects of the called Tcl_ObjCmdProc,
+ *	TclInvokeObjectCommand allocates and frees storage.
  *
  *----------------------------------------------------------------------
  */
@@ -3098,12 +3137,13 @@ Tcl_DeleteCommandFromToken(
      * commands were created that refer back to this command. Delete these
      * imported commands now.
      */
-
-    for (refPtr = cmdPtr->importRefPtr; refPtr != NULL;
-	    refPtr = nextRefPtr) {
-	nextRefPtr = refPtr->nextPtr;
-	importCmd = (Tcl_Command) refPtr->importedCmdPtr;
-	Tcl_DeleteCommandFromToken(interp, importCmd);
+    if (!(cmdPtr->flags & CMD_REDEF_IN_PROGRESS)) {
+	for (refPtr = cmdPtr->importRefPtr; refPtr != NULL;
+		refPtr = nextRefPtr) {
+	    nextRefPtr = refPtr->nextPtr;
+	    importCmd = (Tcl_Command) refPtr->importedCmdPtr;
+	    Tcl_DeleteCommandFromToken(interp, importCmd);
+	}
     }
 
     /*
@@ -3339,66 +3379,6 @@ CancelEvalProc(
 /*
  *----------------------------------------------------------------------
  *
- * GetCommandSource --
- *
- *	This function returns a Tcl_Obj with the full source string for the
- *	command. This insures that traces get a correct NUL-terminated command
- *	string. The Tcl_Obj has refCount==1.
- *
- *	*** MAINTAINER WARNING ***
- *	The returned Tcl_Obj is all wrong for any purpose but getting the
- *	source string for an objc/objv command line in the stringRep (no
- *	stringRep if no source is available) and the corresponding substituted
- *	version in the List intrep.
- *	This means that the intRep and stringRep DO NOT COINCIDE! Using these
- *	Tcl_Objs normally is likely to break things.
- *
- *----------------------------------------------------------------------
- */
-
-static Tcl_Obj *
-GetCommandSource(
-    Interp *iPtr,
-    int objc,
-    Tcl_Obj *const objv[],
-    int lookup)
-{
-    Tcl_Obj *objPtr, *obj2Ptr;
-    CmdFrame *cfPtr = iPtr->cmdFramePtr;
-    const char *command = NULL;
-    int numChars;
-
-    objPtr = Tcl_NewListObj(objc, objv);
-    if (lookup && cfPtr && (cfPtr->numLevels == iPtr->numLevels-1)) {
-	switch (cfPtr->type) {
-	case TCL_LOCATION_EVAL:
-	case TCL_LOCATION_SOURCE:
-	    command = cfPtr->cmd.str.cmd;
-	    numChars = cfPtr->cmd.str.len;
-	    break;
-	case TCL_LOCATION_BC:
-	case TCL_LOCATION_PREBC:
-	    command = TclGetSrcInfoForCmd(iPtr, &numChars);
-	    break;
-	case TCL_LOCATION_EVAL_LIST:
-	    /* Got it already */
-	    break;
-	}
-	if (command) {
-	    obj2Ptr = Tcl_NewStringObj(command, numChars);
-	    objPtr->bytes = obj2Ptr->bytes;
-	    objPtr->length = numChars;
-	    obj2Ptr->bytes = NULL;
-	    Tcl_DecrRefCount(obj2Ptr);
-	}
-    }
-    Tcl_IncrRefCount(objPtr);
-    return objPtr;
-}
-
-/*
- *----------------------------------------------------------------------
- *
  * TclCleanupCommand --
  *
  *	This function frees up a Command structure unless it is still
@@ -3757,41 +3737,28 @@ Tcl_ListMathFuncs(
     Tcl_Interp *interp,
     const char *pattern)
 {
-    Namespace *globalNsPtr = (Namespace *) Tcl_GetGlobalNamespace(interp);
-    Namespace *nsPtr;
-    Namespace *dummy1NsPtr;
-    Namespace *dummy2NsPtr;
-    const char *dummyNamePtr;
-    Tcl_Obj *result = Tcl_NewObj();
-
-    TclGetNamespaceForQualName(interp, "::tcl::mathfunc",
-	    globalNsPtr, TCL_FIND_ONLY_NS | TCL_GLOBAL_ONLY,
-	    &nsPtr, &dummy1NsPtr, &dummy2NsPtr, &dummyNamePtr);
-    if (nsPtr == NULL) {
-	return result;
+    Tcl_Obj *script = Tcl_NewStringObj("::info functions ", -1);
+    Tcl_Obj *result;
+    Tcl_InterpState state;
+
+    if (pattern) {
+	Tcl_Obj *patternObj = Tcl_NewStringObj(pattern, -1);
+	Tcl_Obj *arg = Tcl_NewListObj(1, &patternObj);
+
+	Tcl_AppendObjToObj(script, arg);
+	Tcl_DecrRefCount(arg);	/* Should tear down patternObj too */
     }
 
-    if ((pattern != NULL) && TclMatchIsTrivial(pattern)) {
-	if (Tcl_FindHashEntry(&nsPtr->cmdTable, pattern) != NULL) {
-	    Tcl_ListObjAppendElement(NULL, result,
-		    Tcl_NewStringObj(pattern, -1));
-	}
+    state = Tcl_SaveInterpState(interp, TCL_OK);
+    Tcl_IncrRefCount(script);
+    if (TCL_OK == Tcl_EvalObjEx(interp, script, 0)) {
+	result = Tcl_DuplicateObj(Tcl_GetObjResult(interp));
     } else {
-	Tcl_HashSearch cmdHashSearch;
-	Tcl_HashEntry *cmdHashEntry =
-		Tcl_FirstHashEntry(&nsPtr->cmdTable,&cmdHashSearch);
-
-	for (; cmdHashEntry != NULL;
-		cmdHashEntry = Tcl_NextHashEntry(&cmdHashSearch)) {
-	    const char *cmdNamePtr =
-		    Tcl_GetHashKey(&nsPtr->cmdTable, cmdHashEntry);
-
-	    if (pattern == NULL || Tcl_StringMatch(cmdNamePtr, pattern)) {
-		Tcl_ListObjAppendElement(NULL, result,
-			Tcl_NewStringObj(cmdNamePtr, -1));
-	    }
-	}
+	result = Tcl_NewObj();
     }
+    Tcl_DecrRefCount(script);
+    Tcl_RestoreInterpState(interp, state);
+
     return result;
 }
 
@@ -4172,43 +4139,40 @@ TclNREvalObjv(
 				 * requested Command struct to be invoked. */
 {
     Interp *iPtr = (Interp *) interp;
-    int result;
-    Namespace *lookupNsPtr = iPtr->lookupNsPtr;
-    Command **cmdPtrPtr;
-
-    iPtr->lookupNsPtr = NULL;
 
     /*
-     * Push a callback with cleanup tasks for commands; the cmdPtr at data[0]
-     * will be filled later when the command is found: save its address at
-     * objProcPtr.
-     *
      * data[1] stores a marker for use by tailcalls; it will be set to 1 by
-     * command redirectors (imports, alias, ensembles) so that tailcalls
-     * finishes the source command and not just the target.
+     * command redirectors (imports, alias, ensembles) so that tailcall skips
+     * this callback (that marks the end of the target command) and goes back
+     * to the end of the source command. 
      */
 
-    if (iPtr->evalFlags & TCL_EVAL_REDIRECT) {
-	TclNRAddCallback(interp, NRCommand, NULL, INT2PTR(1), INT2PTR(objc), objv);
-	iPtr->evalFlags &= ~TCL_EVAL_REDIRECT;
+    if (iPtr->deferredCallbacks) {
+        iPtr->deferredCallbacks = NULL;
     } else {
-	TclNRAddCallback(interp, NRCommand, NULL, NULL, INT2PTR(objc), objv);
+	TclNRAddCallback(interp, NRCommand, NULL, NULL, NULL, NULL);
     }
-    cmdPtrPtr = (Command **) &(TOP_CB(interp)->data[0]);
-
-    TclNRSpliceDeferred(interp);
 
     iPtr->numLevels++;
-    result = TclInterpReady(interp);
-
-    if ((result != TCL_OK) || (objc == 0)) {
-	return result;
-    }
-
-    if (cmdPtr) {
-	goto commandFound;
-    }
+    TclNRAddCallback(interp, EvalObjvCore, cmdPtr, INT2PTR(flags),
+	    INT2PTR(objc), objv);
+    return TCL_OK;
+}
 
+static int
+EvalObjvCore(
+    ClientData data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Command *cmdPtr = NULL, *preCmdPtr = data[0];
+    int flags = PTR2INT(data[1]);
+    int objc = PTR2INT(data[2]);
+    Tcl_Obj **objv = data[3];
+    Interp *iPtr = (Interp *) interp;
+    Namespace *lookupNsPtr = NULL;
+    int enterTracesDone = 0;
+    
     /*
      * Push records for task to be done on return, in INVERSE order. First, if
      * needed, the exception handlers (as they should happen last).
@@ -4218,61 +4182,150 @@ TclNREvalObjv(
 	TEOV_PushExceptionHandlers(interp, objc, objv, flags);
     }
 
+    if (TCL_OK != TclInterpReady(interp)) {
+	return TCL_ERROR;
+    }
+
+    if (objc == 0) {
+	return TCL_OK;
+    }
+
+    if (TclLimitExceeded(iPtr->limit)) {
+	return TCL_ERROR;
+    }
+
     /*
      * Configure evaluation context to match the requested flags.
      */
 
-    if ((flags & TCL_EVAL_INVOKE) || lookupNsPtr) {
-	if (!lookupNsPtr) {
-	    lookupNsPtr = iPtr->globalNsPtr;
-	}
+    if (iPtr->lookupNsPtr) {
+
+	/*
+	 * Capture the namespace we should do command name resolution in, as
+	 * instructed by our caller sneaking it in to us in a private interp
+	 * field.  Clear that field right away so we cannot possibly have its
+	 * use leak where it should not.  The sneaky message pass is done.
+	 *
+	 * Use of this mechanism overrides the TCL_EVAL_GLOBAL flag.
+	 * TODO: Is that a bug?
+	 */
+
+	lookupNsPtr = iPtr->lookupNsPtr;
+	iPtr->lookupNsPtr = NULL;
+    } else if (flags & TCL_EVAL_INVOKE) {
+	lookupNsPtr = iPtr->globalNsPtr;
     } else {
-	if (flags & TCL_EVAL_GLOBAL) {
-	    TEOV_SwitchVarFrame(interp);
-	    lookupNsPtr = iPtr->globalNsPtr;
-	}
 
 	/*
 	 * TCL_EVAL_INVOKE was not set: clear rewrite rules
 	 */
 
 	iPtr->ensembleRewrite.sourceObjs = NULL;
+
+	if (flags & TCL_EVAL_GLOBAL) {
+	    TEOV_SwitchVarFrame(interp);
+	    lookupNsPtr = iPtr->globalNsPtr;
+	}
     }
 
     /*
-     * Lookup the command
+     * Lookup the Command to dispatch.
      */
 
-    cmdPtr = TEOV_LookupCmdFromObj(interp, objv[0], lookupNsPtr);
-    if (!cmdPtr) {
-	return TEOV_NotFound(interp, objc, objv, lookupNsPtr);
+    reresolve:
+    assert(cmdPtr == NULL);
+    if (preCmdPtr) {
+	/* Caller gave it to us */
+	if (!(preCmdPtr->flags & CMD_IS_DELETED)) {
+	    /* So long as it exists, use it. */
+	    cmdPtr = preCmdPtr;
+	} else if (flags & TCL_EVAL_NORESOLVE) {
+	    /*
+	     * When it's been deleted, and we're told not to attempt
+	     * resolving it ourselves, all we can do is raise an error.
+	     */
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "attempt to invoke a deleted command"));
+	    Tcl_SetErrorCode(interp, "TCL", "EVAL", "DELETEDCOMMAND", NULL);
+	    return TCL_ERROR;
+	}
     }
-
-    iPtr->cmdCount++;
-    if (TclLimitExceeded(iPtr->limit)) {
-	return TCL_ERROR;
+    if (cmdPtr == NULL) {
+	cmdPtr = TEOV_LookupCmdFromObj(interp, objv[0], lookupNsPtr);
+	if (!cmdPtr) {
+	    return TEOV_NotFound(interp, objc, objv, lookupNsPtr);
+	}
     }
 
-    /*
-     * Found a command! The real work begins now ...
-     */
+    if (enterTracesDone || iPtr->tracePtr
+	    || (cmdPtr->flags & CMD_HAS_EXEC_TRACES)) {
 
-  commandFound:
-    if (iPtr->tracePtr || (cmdPtr->flags & CMD_HAS_EXEC_TRACES)) {
-	/*
-	 * Call enter traces. They will schedule a call to the leave traces if
-	 * necessary.
-	 */
+	Tcl_Obj *commandPtr = TclGetSourceFromFrame(
+		flags & TCL_EVAL_SOURCE_IN_FRAME ?  iPtr->cmdFramePtr : NULL,
+		objc, objv);
+	Tcl_IncrRefCount(commandPtr);
 
-	result = TEOV_RunEnterTraces(interp, &cmdPtr, objc, objv, lookupNsPtr);
-	if (!cmdPtr) {
-	    return TEOV_NotFound(interp, objc, objv, lookupNsPtr);
-	}
-	if (result != TCL_OK) {
-	    return result;
+	if (!enterTracesDone) {
+
+	    int code = TEOV_RunEnterTraces(interp, &cmdPtr, commandPtr,
+		    objc, objv);
+
+	    /*
+	     * Send any exception from enter traces back as an exception
+	     * raised by the traced command.
+	     * TODO: Is this a bug?  Letting an execution trace BREAK or
+	     * CONTINUE or RETURN in the place of the traced command?
+	     * Would either converting all exceptions to TCL_ERROR, or
+	     * just swallowing them be better?  (Swallowing them has the
+	     * problem of permanently hiding program errors.)
+	     */
+
+	    if (code != TCL_OK) {
+		Tcl_DecrRefCount(commandPtr);
+		return code;
+	    }
+
+	    /*
+	     * If the enter traces made the resolved cmdPtr unusable, go
+	     * back and resolve again, but next time don't run enter
+	     * traces again.
+	     */
+
+	    if (cmdPtr == NULL) {
+		enterTracesDone = 1;
+		Tcl_DecrRefCount(commandPtr);
+		goto reresolve;
+	    }
 	}
+
+	/* 
+	 * Schedule leave traces.  Raise the refCount on the resolved
+	 * cmdPtr, so that when it passes to the leave traces we know
+	 * it's still valid.
+	 */
+
+	cmdPtr->refCount++;
+	TclNRAddCallback(interp, TEOV_RunLeaveTraces, INT2PTR(objc),
+		    commandPtr, cmdPtr, objv);
     }
 
+    TclNRAddCallback(interp, Dispatch,
+	    cmdPtr->nreProc ? cmdPtr->nreProc : cmdPtr->objProc,
+	    cmdPtr->objClientData, INT2PTR(objc), objv);
+    return TCL_OK;
+}
+
+static int
+Dispatch(
+    ClientData data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Tcl_ObjCmdProc *objProc = data[0];
+    ClientData clientData = data[1];
+    int objc = PTR2INT(data[2]);
+    Tcl_Obj **objv = data[3];
+    Interp *iPtr = (Interp *) interp;
 
 #ifdef USE_DTRACE
     if (TCL_DTRACE_CMD_ARGS_ENABLED()) {
@@ -4293,42 +4346,18 @@ TclNREvalObjv(
 	TCL_DTRACE_CMD_INFO(a[0], a[1], a[2], a[3], i[0], i[1], a[4], a[5]);
 	TclDecrRefCount(info);
     }
-    if (TCL_DTRACE_CMD_RETURN_ENABLED() || TCL_DTRACE_CMD_RESULT_ENABLED()) {
+    if ((TCL_DTRACE_CMD_RETURN_ENABLED() || TCL_DTRACE_CMD_RESULT_ENABLED())
+	    && objc) {
 	TclNRAddCallback(interp, DTraceCmdReturn, objv[0], NULL, NULL, NULL);
     }
-    if (TCL_DTRACE_CMD_ENTRY_ENABLED()) {
+    if (TCL_DTRACE_CMD_ENTRY_ENABLED() && objc) {
 	TCL_DTRACE_CMD_ENTRY(TclGetString(objv[0]), objc - 1,
 		(Tcl_Obj **)(objv + 1));
     }
 #endif /* USE_DTRACE */
-    /*
-     * Fix the original callback to point to the now known cmdPtr. Insure that
-     * the Command struct lives until the command returns.
-     */
-
-    *cmdPtrPtr = cmdPtr;
-    cmdPtr->refCount++;
-
-    /*
-     * Find the objProc to call: nreProc if available, objProc otherwise. Push
-     * a callback to do the actual running.
-     */
 
-    if (cmdPtr->nreProc) {
-        TclNRAddCallback(interp, NRRunObjProc, cmdPtr,
-                INT2PTR(objc), (ClientData) objv, NULL);
-        return TCL_OK;
-    } else {
-	return cmdPtr->objProc(cmdPtr->objClientData, interp, objc, objv);
-    }
-}
-
-void
-TclPushTailcallPoint(
-    Tcl_Interp *interp)
-{
-    TclNRAddCallback(interp, NRCommand, NULL, NULL, NULL, NULL);
-    ((Interp *) interp)->numLevels++;
+    iPtr->cmdCount++;
+    return objProc(clientData, interp, objc, objv);
 }
 
 int
@@ -4374,13 +4403,16 @@ NRCommand(
     int result)
 {
     Interp *iPtr = (Interp *) interp;
-    Command *cmdPtr = data[0];
-    /* int cmdStart = PTR2INT(data[1]); NOT USED HERE */
 
-    if (cmdPtr) {
-	TclCleanupCommandMacro(cmdPtr);
+    iPtr->numLevels--;
+
+     /*
+      * If there is a tailcall, schedule it next
+      */
+ 
+    if (data[1] && (data[1] != INT2PTR(1))) {
+        TclNRAddCallback(interp, TclNRTailcallEval, data[1], NULL, NULL, NULL);
     }
-    ((Interp *)interp)->numLevels--;
 
     /* OPT ??
      * Do not interrupt a series of cleanups with async or limit checks:
@@ -4399,22 +4431,6 @@ NRCommand(
 
     return result;
 }
-
-static int
-NRRunObjProc(
-    ClientData data[],
-    Tcl_Interp *interp,
-    int result)
-{
-    /* OPT: do not call? */
-
-    Command* cmdPtr = data[0];
-    int objc = PTR2INT(data[1]);
-    Tcl_Obj **objv = data[2];
-
-    return cmdPtr->nreProc(cmdPtr->objClientData, interp, objc, objv);
-}
-
 
 /*
  *----------------------------------------------------------------------
@@ -4639,9 +4655,9 @@ TEOV_NotFound(
 	savedNsPtr = varFramePtr->nsPtr;
 	varFramePtr->nsPtr = lookupNsPtr;
     }
-    TclNRDeferCallback(interp, TEOV_NotFoundCallback, INT2PTR(handlerObjc),
+    TclSkipTailcall(interp);
+    TclNRAddCallback(interp, TEOV_NotFoundCallback, INT2PTR(handlerObjc),
 	    newObjv, savedNsPtr, NULL);
-    iPtr->evalFlags |= TCL_EVAL_REDIRECT;
     return TclNREvalObjv(interp, newObjc, newObjv, TCL_EVAL_NOERR, NULL);
 }
 
@@ -4678,27 +4694,21 @@ static int
 TEOV_RunEnterTraces(
     Tcl_Interp *interp,
     Command **cmdPtrPtr,
+    Tcl_Obj *commandPtr,
     int objc,
-    Tcl_Obj *const objv[],
-    Namespace *lookupNsPtr)
+    Tcl_Obj *const objv[])
 {
     Interp *iPtr = (Interp *) interp;
     Command *cmdPtr = *cmdPtrPtr;
-    int traceCode = TCL_OK;
-    int cmdEpoch = cmdPtr->cmdEpoch;
-    int newEpoch;
-    const char *command;
-    int length;
-    Tcl_Obj *commandPtr;
-
-    commandPtr = GetCommandSource(iPtr, objc, objv, 1);
-    command = Tcl_GetStringFromObj(commandPtr, &length);
+    int newEpoch, cmdEpoch = cmdPtr->cmdEpoch;
+    int length, traceCode = TCL_OK;
+    const char *command = Tcl_GetStringFromObj(commandPtr, &length);
 
     /*
      * Call trace functions.
      * Execute any command or execution traces. Note that we bump up the
-     * command's reference count for the duration of the calling of the traces
-     * so that the structure doesn't go away underneath our feet.
+     * command's reference count for the duration of the calling of the
+     * traces so that the structure doesn't go away underneath our feet.
      */
 
     cmdPtr->refCount++;
@@ -4713,29 +4723,22 @@ TEOV_RunEnterTraces(
     newEpoch = cmdPtr->cmdEpoch;
     TclCleanupCommandMacro(cmdPtr);
 
-    /*
-     * If the traces modified/deleted the command or any existing traces, they
-     * will update the command's epoch. We need to lookup again, but do not
-     * run enter traces on the newly found cmdPtr.
-     */
-
-    if (cmdEpoch != newEpoch) {
-	cmdPtr = TEOV_LookupCmdFromObj(interp, objv[0], lookupNsPtr);
-	*cmdPtrPtr = cmdPtr;
+    if (traceCode != TCL_OK) {
+	if (traceCode == TCL_ERROR) {
+	    Tcl_Obj *info;
+
+	    TclNewLiteralStringObj(info, "\n    (enter trace on \"");
+	    Tcl_AppendLimitedToObj(info, command, length, 55, "...");
+	    Tcl_AppendToObj(info, "\")", 2);
+	    Tcl_AppendObjToErrorInfo(interp, info);
+	    iPtr->flags |= ERR_ALREADY_LOGGED;
+	}
+	return traceCode;
     }
-
-    if (cmdPtr) {
-	/*
-	 * Command was found: push a record to schedule the leave traces.
-	 */
-
-	TclNRAddCallback(interp, TEOV_RunLeaveTraces, INT2PTR(traceCode),
-		commandPtr, cmdPtr, NULL);
-	cmdPtr->refCount++;
-    } else {
-	Tcl_DecrRefCount(commandPtr);
+    if (cmdEpoch != newEpoch) {
+	*cmdPtrPtr = NULL;
     }
-    return traceCode;
+    return TCL_OK;
 }
 
 static int
@@ -4745,20 +4748,16 @@ TEOV_RunLeaveTraces(
     int result)
 {
     Interp *iPtr = (Interp *) interp;
-    const char *command;
-    int length, objc;
-    Tcl_Obj **objv;
-    int traceCode = PTR2INT(data[0]);
+    int traceCode = TCL_OK;
+    int objc = PTR2INT(data[0]);
     Tcl_Obj *commandPtr = data[1];
     Command *cmdPtr = data[2];
-
-    command = Tcl_GetStringFromObj(commandPtr, &length);
-    if (TCL_OK != Tcl_ListObjGetElements(interp, commandPtr, &objc, &objv)) {
-	Tcl_Panic("Who messed with commandPtr?");
-    }
+    Tcl_Obj **objv = data[3];
+    int length;
+    const char *command = Tcl_GetStringFromObj(commandPtr, &length);
 
     if (!(cmdPtr->flags & CMD_IS_DELETED)) {
-	if ((cmdPtr->flags & CMD_HAS_EXEC_TRACES) && traceCode == TCL_OK){
+	if (cmdPtr->flags & CMD_HAS_EXEC_TRACES){
 	    traceCode = TclCheckExecutionTraces(interp, command, length,
 		    cmdPtr, result, TCL_TRACE_LEAVE_EXEC, objc, objv);
 	}
@@ -4767,7 +4766,6 @@ TEOV_RunLeaveTraces(
 		    cmdPtr, result, TCL_TRACE_LEAVE_EXEC, objc, objv);
 	}
     }
-    Tcl_DecrRefCount(commandPtr);
 
     /*
      * As cmdPtr is set, TclNRRunCallbacks is about to reduce the numlevels.
@@ -4778,8 +4776,18 @@ TEOV_RunLeaveTraces(
     TclCleanupCommandMacro(cmdPtr);
 
     if (traceCode != TCL_OK) {
-	return traceCode;
+	if (traceCode == TCL_ERROR) {
+	    Tcl_Obj *info;
+
+	    TclNewLiteralStringObj(info, "\n    (leave trace on \"");
+	    Tcl_AppendLimitedToObj(info, command, length, 55, "...");
+	    Tcl_AppendToObj(info, "\")", 2);
+	    Tcl_AppendObjToErrorInfo(interp, info);
+	    iPtr->flags |= ERR_ALREADY_LOGGED;
+	}
+	result = traceCode;
     }
+    Tcl_DecrRefCount(commandPtr);
     return result;
 }
 
@@ -4795,7 +4803,6 @@ TEOV_LookupCmdFromObj(
 
     if (lookupNsPtr) {
 	iPtr->varFramePtr->nsPtr = lookupNsPtr;
-	iPtr->lookupNsPtr = NULL;
     }
     cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, namePtr);
     iPtr->varFramePtr->nsPtr = savedNsPtr;
@@ -5014,31 +5021,22 @@ TclEvalEx(
     /*
      * TIP #280 Initialize tracking. Do not push on the frame stack yet.
      *
-     * We may continue counting based on a specific context (CTX), or open a
-     * new context, either for a sourced script, or 'eval'. For sourced files
-     * we always have a path object, even if nothing was specified in the
-     * interp itself. That makes code using it simpler as NULL checks can be
-     * left out. Sourced file without path in the 'scriptFile' is possible
-     * during Tcl initialization.
+     * We open a new context, either for a sourced script, or 'eval'.
+     * For sourced files we always have a path object, even if nothing was
+     * specified in the interp itself. That makes code using it simpler as
+     * NULL checks can be left out. Sourced file without path in the
+     * 'scriptFile' is possible during Tcl initialization.
      */
 
     eeFramePtr->level = iPtr->cmdFramePtr ? iPtr->cmdFramePtr->level + 1 : 1;
-    eeFramePtr->numLevels = iPtr->numLevels;
     eeFramePtr->framePtr = iPtr->framePtr;
     eeFramePtr->nextPtr = iPtr->cmdFramePtr;
     eeFramePtr->nline = 0;
     eeFramePtr->line = NULL;
+    eeFramePtr->cmdObj = NULL;
 
     iPtr->cmdFramePtr = eeFramePtr;
-    if (iPtr->evalFlags & TCL_EVAL_CTX) {
-	/*
-	 * Path information comes out of the context.
-	 */
-
-	eeFramePtr->type = TCL_LOCATION_SOURCE;
-	eeFramePtr->data.eval.path = iPtr->invokeCmdFramePtr->data.eval.path;
-	Tcl_IncrRefCount(eeFramePtr->data.eval.path);
-    } else if (iPtr->evalFlags & TCL_EVAL_FILE) {
+    if (iPtr->evalFlags & TCL_EVAL_FILE) {
 	/*
 	 * Set up for a sourced file.
 	 */
@@ -5081,7 +5079,9 @@ TclEvalEx(
     do {
 	if (Tcl_ParseCommand(interp, p, bytesLeft, 0, parsePtr) != TCL_OK) {
 	    code = TCL_ERROR;
-	    goto error;
+	    Tcl_LogCommandInfo(interp, script, parsePtr->commandStart,
+		    parsePtr->term + 1 - parsePtr->commandStart);
+	    goto posterror;
 	}
 
 	/*
@@ -5247,23 +5247,28 @@ TclEvalEx(
 	     * have been executed.
 	     */
 
-	    eeFramePtr->cmd.str.cmd = parsePtr->commandStart;
-	    eeFramePtr->cmd.str.len = parsePtr->commandSize;
+	    eeFramePtr->cmd = parsePtr->commandStart;
+	    eeFramePtr->len = parsePtr->commandSize;
 
 	    if (parsePtr->term ==
 		    parsePtr->commandStart + parsePtr->commandSize - 1) {
-		eeFramePtr->cmd.str.len--;
+		eeFramePtr->len--;
 	    }
 
 	    eeFramePtr->nline = objectsUsed;
 	    eeFramePtr->line = lines;
 
 	    TclArgumentEnter(interp, objv, objectsUsed, eeFramePtr);
-	    code = Tcl_EvalObjv(interp, objectsUsed, objv, TCL_EVAL_NOERR);
+	    code = Tcl_EvalObjv(interp, objectsUsed, objv,
+		    TCL_EVAL_NOERR | TCL_EVAL_SOURCE_IN_FRAME);
 	    TclArgumentRelease(interp, objv, objectsUsed);
 
 	    eeFramePtr->line = NULL;
 	    eeFramePtr->nline = 0;
+	    if (eeFramePtr->cmdObj) {
+		Tcl_DecrRefCount(eeFramePtr->cmdObj);
+		eeFramePtr->cmdObj = NULL;
+	    }
 
 	    if (code != TCL_OK) {
 		goto error;
@@ -5337,6 +5342,7 @@ TclEvalEx(
 	Tcl_LogCommandInfo(interp, script, parsePtr->commandStart,
 		commandLength);
     }
+ posterror:
     iPtr->flags &= ~ERR_ALREADY_LOGGED;
 
     /*
@@ -5611,76 +5617,88 @@ TclArgumentBCEnter(
     int objc,
     void *codePtr,
     CmdFrame *cfPtr,
+    int cmd,
     int pc)
 {
+    ExtCmdLoc *eclPtr;
+    int word;
+    ECL *ePtr;
+    CFWordBC *lastPtr = NULL;
     Interp *iPtr = (Interp *) interp;
     Tcl_HashEntry *hePtr =
 	    Tcl_FindHashEntry(iPtr->lineBCPtr, (char *) codePtr);
-    ExtCmdLoc *eclPtr;
 
     if (!hePtr) {
 	return;
     }
     eclPtr = Tcl_GetHashValue(hePtr);
-    hePtr = Tcl_FindHashEntry(&eclPtr->litInfo, INT2PTR(pc));
-    if (hePtr) {
-	int word;
-	int cmd = PTR2INT(Tcl_GetHashValue(hePtr));
-	ECL *ePtr = &eclPtr->loc[cmd];
-	CFWordBC *lastPtr = NULL;
+    ePtr = &eclPtr->loc[cmd];
 
-	/*
-	 * A few truths ...
-	 * (1) ePtr->nline == objc
-	 * (2) (ePtr->line[word] < 0) => !literal, for all words
-	 * (3) (word == 0) => !literal
-	 *
-	 * Item (2) is why we can use objv to get the literals, and do not
-	 * have to save them at compile time.
-	 */
+    /*
+     * ePtr->nline is the number of words originally parsed.
+     *
+     * objc is the number of elements getting invoked.
+     *
+     * If they are not the same, we arrived here by compiling an
+     * ensemble dispatch.  Ensemble subcommands that lead to script
+     * evaluation are not supposed to get compiled, because a command
+     * such as [info level] in the script can expose some of the dispatch
+     * shenanigans.  This means that we don't have to tend to the 
+     * housekeeping, and can escape now.
+     */
+	
+    if (ePtr->nline != objc) {
+        return;
+    }
 
-        if (ePtr->nline != objc) {
-            Tcl_Panic ("TIP 280 data structure inconsistency");
-        }
+    /*
+     * Having disposed of the ensemble cases, we can state...
+     * A few truths ...
+     * (1) ePtr->nline == objc
+     * (2) (ePtr->line[word] < 0) => !literal, for all words
+     * (3) (word == 0) => !literal
+     *
+     * Item (2) is why we can use objv to get the literals, and do not
+     * have to save them at compile time.
+     */
 
-	for (word = 1; word < objc; word++) {
-	    if (ePtr->line[word] >= 0) {
-		int isnew;
-		Tcl_HashEntry *hPtr = Tcl_CreateHashEntry(iPtr->lineLABCPtr,
-			objv[word], &isnew);
-		CFWordBC *cfwPtr = ckalloc(sizeof(CFWordBC));
-
-		cfwPtr->framePtr = cfPtr;
-		cfwPtr->obj = objv[word];
-		cfwPtr->pc = pc;
-		cfwPtr->word = word;
-		cfwPtr->nextPtr = lastPtr;
-		lastPtr = cfwPtr;
-
-		if (isnew) {
-		    /*
-		     * The word is not on the stack yet, remember the current
-		     * location and initialize references.
-		     */
-
-		    cfwPtr->prevPtr = NULL;
-		} else {
-		    /*
-		     * The object is already on the stack, however it may have
-		     * a different location now (literal sharing may map
-		     * multiple location to a single Tcl_Obj*. Save the old
-		     * information in the new structure.
-		     */
-
-		    cfwPtr->prevPtr = Tcl_GetHashValue(hPtr);
-		}
+    for (word = 1; word < objc; word++) {
+	if (ePtr->line[word] >= 0) {
+	    int isnew;
+	    Tcl_HashEntry *hPtr = Tcl_CreateHashEntry(iPtr->lineLABCPtr,
+		objv[word], &isnew);
+	    CFWordBC *cfwPtr = ckalloc(sizeof(CFWordBC));
+
+	    cfwPtr->framePtr = cfPtr;
+	    cfwPtr->obj = objv[word];
+	    cfwPtr->pc = pc;
+	    cfwPtr->word = word;
+	    cfwPtr->nextPtr = lastPtr;
+	    lastPtr = cfwPtr;
+
+	    if (isnew) {
+		/*
+		 * The word is not on the stack yet, remember the current
+		 * location and initialize references.
+		 */
 
-		Tcl_SetHashValue(hPtr, cfwPtr);
+		cfwPtr->prevPtr = NULL;
+	    } else {
+		/*
+		 * The object is already on the stack, however it may have
+		 * a different location now (literal sharing may map
+		 * multiple location to a single Tcl_Obj*. Save the old
+		 * information in the new structure.
+		 */
+
+		cfwPtr->prevPtr = Tcl_GetHashValue(hPtr);
 	    }
-	} /* for */
 
-	cfPtr->litarg = lastPtr;
-    } /* if */
+	    Tcl_SetHashValue(hPtr, cfwPtr);
+	}
+    } /* for */
+
+    cfPtr->litarg = lastPtr;
 }
 
 /*
@@ -5828,6 +5846,7 @@ TclArgumentGet(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_Eval
 int
 Tcl_Eval(
     Tcl_Interp *interp,		/* Token for command interpreter (returned by
@@ -5889,6 +5908,11 @@ Tcl_GlobalEvalObj(
  *	compiled into bytecodes if necessary, unless TCL_EVAL_DIRECT is
  *	specified.
  *
+ *	If the flag TCL_EVAL_DIRECT is passed in, the value of invoker
+ *	must be NULL.  Support for non-NULL invokers in that mode has
+ *	been removed since it was unused and untested.  Failure to 
+ *	follow this limitation will lead to an assertion panic.
+ *
  * Results:
  *	The return value is one of the return codes defined in tcl.h (such as
  *	TCL_OK), and the interpreter's result contains a value to supplement
@@ -5957,13 +5981,12 @@ TclNREvalObjEx(
      */
 
     if (TclListObjIsCanonical(objPtr)) {
-	Tcl_Obj *listPtr = objPtr;
 	CmdFrame *eoFramePtr = NULL;
 	int objc;
-	Tcl_Obj **objv;
+	Tcl_Obj *listPtr, **objv;
 
 	/*
-	 * Pure List Optimization (no string representation). In this case, we
+	 * Canonical List Optimization:  In this case, we
 	 * can safely use Tcl_EvalObjv instead and get an appreciable
 	 * improvement in execution speed. This is because it allows us to
 	 * avoid a setFromAny step that would just pack everything into a
@@ -5971,11 +5994,6 @@ TclNREvalObjEx(
 	 *
 	 * This also preserves any associations between list elements and
 	 * location information for such elements.
-	 *
-	 * This restriction has been relaxed a bit by storing in lists whether
-	 * they are "canonical" or not (a canonical list being one that is
-	 * either pure or that has its string rep derived by
-	 * UpdateStringOfList from the internal rep).
 	 */
 
 	/*
@@ -5984,13 +6002,13 @@ TclNREvalObjEx(
 	 * we always make a copy. The callback takes care od the refCounts for
 	 * both listPtr and objPtr.
 	 *
+	 * TODO: Create a test to demo this need, or eliminate it.
 	 * FIXME OPT: preserve just the internal rep?
 	 */
 
 	Tcl_IncrRefCount(objPtr);
 	listPtr = TclListObjCopy(interp, objPtr);
 	Tcl_IncrRefCount(listPtr);
-	TclDecrRefCount(objPtr);
 
 	if (word != INT_MIN) {
 	    /*
@@ -6013,21 +6031,25 @@ TclNREvalObjEx(
 	    eoFramePtr->nline = 0;
 	    eoFramePtr->line = NULL;
 
-	    eoFramePtr->type = TCL_LOCATION_EVAL_LIST;
+	    eoFramePtr->type = TCL_LOCATION_EVAL;
 	    eoFramePtr->level = (iPtr->cmdFramePtr == NULL?
 		    1 : iPtr->cmdFramePtr->level + 1);
-	    eoFramePtr->numLevels = iPtr->numLevels;
 	    eoFramePtr->framePtr = iPtr->framePtr;
 	    eoFramePtr->nextPtr = iPtr->cmdFramePtr;
 
-	    eoFramePtr->cmd.listPtr = listPtr;
+	    eoFramePtr->cmdObj = objPtr;
+	    eoFramePtr->cmd = NULL;
+	    eoFramePtr->len = 0;
 	    eoFramePtr->data.eval.path = NULL;
 
 	    iPtr->cmdFramePtr = eoFramePtr;
+
+	    flags |= TCL_EVAL_SOURCE_IN_FRAME;
 	}
 
-	TclNRDeferCallback(interp, TEOEx_ListCallback, listPtr, eoFramePtr,
-		NULL, NULL);
+	TclMarkTailcall(interp);
+        TclNRAddCallback(interp, TEOEx_ListCallback, listPtr, eoFramePtr,
+		objPtr, NULL);
 
 	ListObjGetElements(listPtr, objc, objv);
 	return TclNREvalObjv(interp, objc, objv, flags, NULL);
@@ -6067,14 +6089,6 @@ TclNREvalObjEx(
 	 * We're not supposed to use the compiler or byte-code
 	 * interpreter. Let Tcl_EvalEx evaluate the command directly (and
 	 * probably more slowly).
-	 *
-	 * TIP #280. Propagate context as much as we can. Especially if the
-	 * script to evaluate is a single literal it makes sense to look if
-	 * our context is one with absolute line numbers we can then track
-	 * into the literal itself too.
-	 *
-	 * See also tclCompile.c, TclInitCompileEnv, for the equivalent code
-	 * in the bytecode compiler.
 	 */
 
 	const char *script;
@@ -6098,92 +6112,19 @@ TclNREvalObjEx(
 	 */
 
 	ContLineLoc *saveCLLocPtr = iPtr->scriptCLLocPtr;
-	ContLineLoc *clLocPtr = TclContinuationsGet(objPtr);
-
-	if (clLocPtr) {
-	    iPtr->scriptCLLocPtr = clLocPtr;
-	    Tcl_Preserve(iPtr->scriptCLLocPtr);
-	} else {
-	    iPtr->scriptCLLocPtr = NULL;
-	}
-
-	Tcl_IncrRefCount(objPtr);
-	if (invoker == NULL) {
-	    /*
-	     * No context, force opening of our own.
-	     */
-
-	    script = Tcl_GetStringFromObj(objPtr, &numSrcBytes);
-	    result = Tcl_EvalEx(interp, script, numSrcBytes, flags);
-	} else {
-	    /*
-	     * We have an invoker, describing the command asking for the
-	     * evaluation of a subordinate script. This script may originate
-	     * in a literal word, or from a variable, etc. Using the line
-	     * array we now check if we have good line information for the
-	     * relevant word. The type of context is relevant as well. In a
-	     * non-'source' context we don't have to try tracking lines.
-	     *
-	     * First see if the word exists and is a literal. If not we go
-	     * through the easy dynamic branch. No need to perform more
-	     * complex invokations.
-	     */
-
-	    int pc = 0;
-	    CmdFrame *ctxPtr = TclStackAlloc(interp, sizeof(CmdFrame));
-
-	    *ctxPtr = *invoker;
-	    if (invoker->type == TCL_LOCATION_BC) {
-		/*
-		 * Note: Type BC => ctxPtr->data.eval.path is not used.
-		 * ctxPtr->data.tebc.codePtr is used instead.
-		 */
-
-		TclGetSrcInfoForPc(ctxPtr);
-		pc = 1;
-	    }
-
-	    script = Tcl_GetStringFromObj(objPtr, &numSrcBytes);
-
-	    if ((invoker->nline <= word) ||
-		    (invoker->line[word] < 0) ||
-		    (ctxPtr->type != TCL_LOCATION_SOURCE)) {
-		/*
-		 * Dynamic script, or dynamic context, force our own context.
-		 */
 
-		result = Tcl_EvalEx(interp, script, numSrcBytes, flags);
-	    } else {
-		/*
-		 * Absolute context to reuse.
-		 */
+	assert(invoker == NULL);
 
-		iPtr->invokeCmdFramePtr = ctxPtr;
-		iPtr->evalFlags |= TCL_EVAL_CTX;
+	iPtr->scriptCLLocPtr = TclContinuationsGet(objPtr);
 
-		result = TclEvalEx(interp, script, numSrcBytes, flags,
-			ctxPtr->line[word], NULL, script);
-	    }
-	    if (pc && (ctxPtr->type == TCL_LOCATION_SOURCE)) {
-		/*
-		 * Death of SrcInfo reference.
-		 */
+	Tcl_IncrRefCount(objPtr);
 
-		Tcl_DecrRefCount(ctxPtr->data.eval.path);
-	    }
-	    TclStackFree(interp, ctxPtr);
-	}
+	script = Tcl_GetStringFromObj(objPtr, &numSrcBytes);
+	result = Tcl_EvalEx(interp, script, numSrcBytes, flags);
 
-	/*
-	 * Now release the lock on the continuation line information, if any,
-	 * and restore the caller's settings.
-	 */
+	TclDecrRefCount(objPtr);
 
-	if (iPtr->scriptCLLocPtr) {
-	    Tcl_Release(iPtr->scriptCLLocPtr);
-	}
 	iPtr->scriptCLLocPtr = saveCLLocPtr;
-	TclDecrRefCount(objPtr);
 	return result;
     }
 }
@@ -6243,6 +6184,7 @@ TEOEx_ListCallback(
     Interp *iPtr = (Interp *) interp;
     Tcl_Obj *listPtr = data[0];
     CmdFrame *eoFramePtr = data[1];
+    Tcl_Obj *objPtr = data[2];
 
     /*
      * Remove the cmdFrame
@@ -6252,6 +6194,7 @@ TEOEx_ListCallback(
 	iPtr->cmdFramePtr = eoFramePtr->nextPtr;
 	TclStackFree(interp, eoFramePtr);
     }
+    TclDecrRefCount(objPtr);
     TclDecrRefCount(listPtr);
 
     return result;
@@ -6614,30 +6557,32 @@ TclObjInvoke(
 				 * TCL_INVOKE_HIDDEN, TCL_INVOKE_NO_UNKNOWN,
 				 * or TCL_INVOKE_NO_TRACEBACK. */
 {
-    register Interp *iPtr = (Interp *) interp;
-    Tcl_HashTable *hTblPtr;	/* Table of hidden commands. */
-    const char *cmdName;	/* Name of the command from objv[0]. */
-    Tcl_HashEntry *hPtr = NULL;
-    Command *cmdPtr;
-    int result;
-
     if (interp == NULL) {
 	return TCL_ERROR;
     }
-
     if ((objc < 1) || (objv == NULL)) {
 	Tcl_SetObjResult(interp, Tcl_NewStringObj(
                 "illegal argument vector", -1));
 	return TCL_ERROR;
     }
-
     if ((flags & TCL_INVOKE_HIDDEN) == 0) {
 	Tcl_Panic("TclObjInvoke: called without TCL_INVOKE_HIDDEN");
     }
+    return Tcl_NRCallObjProc(interp, TclNRInvoke, NULL, objc, objv);
+}
 
-    if (TclInterpReady(interp) == TCL_ERROR) {
-	return TCL_ERROR;
-    }
+int
+TclNRInvoke(
+    ClientData clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    register Interp *iPtr = (Interp *) interp;
+    Tcl_HashTable *hTblPtr;	/* Table of hidden commands. */
+    const char *cmdName;	/* Name of the command from objv[0]. */
+    Tcl_HashEntry *hPtr = NULL;
+    Command *cmdPtr;
 
     cmdName = TclGetString(objv[0]);
     hTblPtr = iPtr->hiddenCmdTablePtr;
@@ -6653,36 +6598,27 @@ TclObjInvoke(
     }
     cmdPtr = Tcl_GetHashValue(hPtr);
 
-    /*
-     * Invoke the command function.
-     */
-
-    iPtr->cmdCount++;
-    if (cmdPtr->objProc != NULL) {
-	result = cmdPtr->objProc(cmdPtr->objClientData, interp, objc, objv);
-    } else {
-	result = Tcl_NRCallObjProc(interp, cmdPtr->nreProc,
-		cmdPtr->objClientData, objc, objv);
-    }
+    /* Avoid the exception-handling brain damage when numLevels == 0 . */
+    iPtr->numLevels++;
+    Tcl_NRAddCallback(interp, NRPostInvoke, NULL, NULL, NULL, NULL);
 
     /*
-     * If an error occurred, record information about what was being executed
-     * when the error occurred.
+     * Normal command resolution of objv[0] isn't going to find cmdPtr.
+     * That's the whole point of **hidden** commands.  So tell the
+     * Eval core machinery not to even try (and risk finding something wrong).
      */
 
-    if ((result == TCL_ERROR)
-	    && ((flags & TCL_INVOKE_NO_TRACEBACK) == 0)
-	    && ((iPtr->flags & ERR_ALREADY_LOGGED) == 0)) {
-	int length;
-	Tcl_Obj *command = Tcl_NewListObj(objc, objv);
-	const char *cmdString;
+    return TclNREvalObjv(interp, objc, objv, TCL_EVAL_NORESOLVE, cmdPtr);
+}
 
-	Tcl_IncrRefCount(command);
-	cmdString = Tcl_GetStringFromObj(command, &length);
-	Tcl_LogCommandInfo(interp, cmdString, cmdString, length);
-	Tcl_DecrRefCount(command);
-	iPtr->flags &= ~ERR_ALREADY_LOGGED;
-    }
+static int
+NRPostInvoke(
+    ClientData clientData[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *)interp;
+    iPtr->numLevels--;
     return result;
 }
 
@@ -6759,6 +6695,7 @@ Tcl_ExprString(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_AddObjErrorInfo
 void
 Tcl_AppendObjToErrorInfo(
     Tcl_Interp *interp,		/* Interpreter to which error information
@@ -6792,6 +6729,7 @@ Tcl_AppendObjToErrorInfo(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_AddErrorInfo
 void
 Tcl_AddErrorInfo(
     Tcl_Interp *interp,		/* Interpreter to which error information
@@ -6972,6 +6910,7 @@ Tcl_VarEval(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_GlobalEval
 int
 Tcl_GlobalEval(
     Tcl_Interp *interp,		/* Interpreter in which to evaluate
@@ -7490,7 +7429,7 @@ ExprAbsFunc(
 	return TCL_OK;
     }
 
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
     if (type == TCL_NUMBER_WIDE) {
 	Tcl_WideInt w = *((const Tcl_WideInt *) ptr);
 
@@ -8130,39 +8069,11 @@ Tcl_NRCallObjProc(
     int objc,
     Tcl_Obj *const objv[])
 {
-    int result = TCL_OK;
     NRE_callback *rootPtr = TOP_CB(interp);
 
-#ifdef USE_DTRACE
-    if (TCL_DTRACE_CMD_ARGS_ENABLED()) {
-	const char *a[10];
-	int i = 0;
-
-	while (i < 10) {
-	    a[i] = i < objc ? TclGetString(objv[i]) : NULL; i++;
-	}
-	TCL_DTRACE_CMD_ARGS(a[0], a[1], a[2], a[3], a[4], a[5], a[6], a[7],
-		a[8], a[9]);
-    }
-    if (TCL_DTRACE_CMD_INFO_ENABLED() && ((Interp *) interp)->cmdFramePtr) {
-	Tcl_Obj *info = TclInfoFrame(interp, ((Interp *) interp)->cmdFramePtr);
-	const char *a[6]; int i[2];
-
-	TclDTraceInfo(info, a, i);
-	TCL_DTRACE_CMD_INFO(a[0], a[1], a[2], a[3], i[0], i[1], a[4], a[5]);
-	TclDecrRefCount(info);
-    }
-    if ((TCL_DTRACE_CMD_RETURN_ENABLED() || TCL_DTRACE_CMD_RESULT_ENABLED())
-	    && objc) {
-	TclNRAddCallback(interp, DTraceCmdReturn, objv[0], NULL, NULL, NULL);
-    }
-    if (TCL_DTRACE_CMD_ENTRY_ENABLED() && objc) {
-	TCL_DTRACE_CMD_ENTRY(TclGetString(objv[0]), objc - 1,
-		(Tcl_Obj **)(objv + 1));
-    }
-#endif /* USE_DTRACE */
-    result = objProc(clientData, interp, objc, objv);
-    return TclNRRunCallbacks(interp, result, rootPtr);
+    TclNRAddCallback(interp, Dispatch, objProc, clientData,
+	    INT2PTR(objc), objv);
+    return TclNRRunCallbacks(interp, TCL_OK, rootPtr);
 }
 
 /*
@@ -8255,59 +8166,122 @@ Tcl_NRCmdSwap(
     Tcl_Obj *const objv[],
     int flags)
 {
-    return TclNREvalObjv(interp, objc, objv, flags, (Command *) cmd);
+    return TclNREvalObjv(interp, objc, objv, flags|TCL_EVAL_NOERR,
+	    (Command *) cmd);
 }
 
 /*****************************************************************************
- * Stuff for tailcalls
+ * Tailcall related code
  *****************************************************************************
  *
- * Just to show that IT CAN BE DONE! The precise semantics are not simple,
- * require more thought. Possibly need a new Tcl return code to do it right?
- * Questions include:
- *   (1) How is the objc/objv tailcall to be run? My current thinking is that
- *	 it should essentially be
- *	     [tailcall a b c] <=> [uplevel 1 [list a b c]]
- *	 with two caveats
- *	     (a) the current frame is dropped first, after running all pending
- *		 cleanup tasks and saving its namespace
- *	     (b) 'a' is looked up in the returning frame's namespace, but the
- *		 command is run in the context to which we are returning
- *	 Current implementation does this if [tailcall] is called from within
- *	 a proc, errors otherwise.
- *   (2) Should a tailcall bypass [catch] in the returning frame? Current
- *	 implementation does not (or does it? Changed, test!) - it causes an
- *	 error.
- *
- * FIXME NRE!
+ * The steps of the tailcall dance are as follows:
+ *
+ *   1. when [tailcall] is invoked, it stores the corresponding callback in
+ *      the current CallFrame and returns TCL_RETURN
+ *   2. when the CallFrame is popped, it calls TclSetTailcall to store the
+ *      callback in the proper NRCommand callback - the spot where the command
+ *      that pushed the CallFrame is completely cleaned up
+ *   3. when the NRCommand callback runs, it schedules the tailcall callback
+ *      to run immediately after it returns
+ *
+ *   One delicate point is to properly define the NRCommand where the tailcall
+ *   will execute. There are functions whose purpose is to help define the
+ *   precise spot:
+ *     TclMarkTailcall: if the NEXT command to be pushed tailcalls, execution
+ *         should continue right here
+ *     TclSkipTailcall:  if the NEXT command to be pushed tailcalls, execution
+ *         should continue after the CURRENT command is fully returned ("skip
+ *         the next command: we are redirecting to it, tailcalls should run
+ *         after WE return") 
+ *     TclPushTailcallPoint: the search for a tailcalling spot cannot traverse
+ *         this point. This is special for OO, as some of the oo constructs
+ *         that behave like commands may not push an NRCommand callback.
+ */
+
+void
+TclMarkTailcall(
+    Tcl_Interp *interp)
+{
+    Interp *iPtr = (Interp *) interp;
+
+    if (iPtr->deferredCallbacks == NULL) {
+	TclNRAddCallback(interp, NRCommand, NULL, NULL,
+                NULL, NULL);
+        iPtr->deferredCallbacks = TOP_CB(interp);
+    }
+}
+
+void
+TclSkipTailcall(
+    Tcl_Interp *interp)
+{
+    Interp *iPtr = (Interp *) interp;
+
+    TclMarkTailcall(interp);
+    iPtr->deferredCallbacks->data[1] = INT2PTR(1);
+}
+
+void
+TclPushTailcallPoint(
+    Tcl_Interp *interp)
+{
+    TclNRAddCallback(interp, NRCommand, NULL, NULL, NULL, NULL);
+    ((Interp *) interp)->numLevels++;
+}
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclSetTailcall --
+ *
+ *	Splice a tailcall command in the proper spot of the NRE callback
+ *	stack, so that it runs at the right time.
+ *
+ *----------------------------------------------------------------------
  */
 
 void
-TclSpliceTailcall(
+TclSetTailcall(
     Tcl_Interp *interp,
-    NRE_callback *tailcallPtr)
+    Tcl_Obj *listPtr)
 {
     /*
      * Find the splicing spot: right before the NRCommand of the thing
-     * being tailcalled. Note that we skip NRCommands marked in data[1]
+     * being tailcalled. Note that we skip NRCommands marked by a 1 in data[1]
      * (used by command redirectors).
      */
 
     NRE_callback *runPtr;
 
     for (runPtr = TOP_CB(interp); runPtr; runPtr = runPtr->nextPtr) {
-	if (((runPtr->procPtr) == NRCommand) && !runPtr->data[1]) {
+        if (((runPtr->procPtr) == NRCommand) && !runPtr->data[1]) {
             break;
         }
     }
     if (!runPtr) {
         Tcl_Panic("tailcall cannot find the right splicing spot: should not happen!");
     }
-
-    tailcallPtr->nextPtr = runPtr->nextPtr;
-    runPtr->nextPtr = tailcallPtr;
+    runPtr->data[1] = listPtr;
 }
 
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNRTailcallObjCmd --
+ *
+ *	Prepare the tailcall as a list and store it in the current
+ *	varFrame. When the frame is later popped the tailcall will be spliced
+ *	at the proper place.
+ *
+ * Results:
+ *	The first NRCommand callback that is not marked to be skipped is
+ *	updated so that its data[1] field contains the tailcall list.
+ *
+ *----------------------------------------------------------------------
+ */
+
 int
 TclNRTailcallObjCmd(
     ClientData clientData,
@@ -8322,9 +8296,9 @@ TclNRTailcallObjCmd(
 	return TCL_ERROR;
     }
 
-    if (!iPtr->varFramePtr->isProcCallFrame) {	/* or is upleveled */
+    if (!(iPtr->varFramePtr->isProcCallFrame & 1)) {
         Tcl_SetObjResult(interp, Tcl_NewStringObj(
-                "tailcall can only be called from a proc or lambda", -1));
+                "tailcall can only be called from a proc, lambda or method", -1));
         Tcl_SetErrorCode(interp, "TCL", "TAILCALL", "ILLEGAL", NULL);
 	return TCL_ERROR;
     }
@@ -8335,55 +8309,64 @@ TclNRTailcallObjCmd(
      */
 
     if (iPtr->varFramePtr->tailcallPtr) {
-        ClearTailcall(interp, iPtr->varFramePtr->tailcallPtr);
+        Tcl_DecrRefCount(iPtr->varFramePtr->tailcallPtr);
         iPtr->varFramePtr->tailcallPtr = NULL;
     }
 
     /*
      * Create the callback to actually evaluate the tailcalled
      * command, then set it in the varFrame so that PopCallFrame can use it
-     * at the proper time. Being lazy: exploit the TclNRAddCallBack macro to
-     * build the callback.
+     * at the proper time.
      */
 
     if (objc > 1) {
         Tcl_Obj *listPtr, *nsObjPtr;
         Tcl_Namespace *nsPtr = (Tcl_Namespace *) iPtr->varFramePtr->nsPtr;
         Tcl_Namespace *ns1Ptr;
-        NRE_callback *tailcallPtr;
 
-        listPtr = Tcl_NewListObj(objc-1, objv+1);
-        Tcl_IncrRefCount(listPtr);
+        /* The tailcall data is in a Tcl list: the first element is the
+         * namespace, the rest the command to be tailcalled. */
+        
+        listPtr = Tcl_NewListObj(objc, objv);
 
         nsObjPtr = Tcl_NewStringObj(nsPtr->fullName, -1);
         if ((TCL_OK != TclGetNamespaceFromObj(interp, nsObjPtr, &ns1Ptr))
                 || (nsPtr != ns1Ptr)) {
             Tcl_Panic("Tailcall failed to find the proper namespace");
         }
-        Tcl_IncrRefCount(nsObjPtr);
-
-        TclNRAddCallback(interp, NRTailcallEval, listPtr, nsObjPtr,
-                NULL, NULL);
-        tailcallPtr = TOP_CB(interp);
-        TOP_CB(interp) = tailcallPtr->nextPtr;
-        iPtr->varFramePtr->tailcallPtr = tailcallPtr;
+ 	TclListObjSetElement(interp, listPtr, 0, nsObjPtr);
+        
+        iPtr->varFramePtr->tailcallPtr = listPtr;
     }
     return TCL_RETURN;
 }
 
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNRTailcallEval --
+ *
+ *	This NREcallback actually causes the tailcall to be evaluated.
+ *
+ *----------------------------------------------------------------------
+ */
+
 int
-NRTailcallEval(
+TclNRTailcallEval(
     ClientData data[],
     Tcl_Interp *interp,
     int result)
 {
     Interp *iPtr = (Interp *) interp;
-    Tcl_Obj *listPtr = data[0];
-    Tcl_Obj *nsObjPtr = data[1];
+    Tcl_Obj *listPtr = data[0], *nsObjPtr;
     Tcl_Namespace *nsPtr;
     int objc;
     Tcl_Obj **objv;
 
+    Tcl_ListObjGetElements(interp, listPtr, &objc, &objv); 
+    nsObjPtr = objv[0];
+    
     if (result == TCL_OK) {
 	result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
     }
@@ -8402,10 +8385,10 @@ NRTailcallEval(
      * Perform the tailcall
      */
 
-    TclNRDeferCallback(interp, TailcallCleanup, listPtr, nsObjPtr, NULL,NULL);
+    TclMarkTailcall(interp);
+    TclNRAddCallback(interp, TailcallCleanup, listPtr, NULL, NULL,NULL);
     iPtr->lookupNsPtr = (Namespace *) nsPtr;
-    ListObjGetElements(listPtr, objc, objv);
-    return TclNREvalObjv(interp, objc, objv, 0, NULL);
+    return TclNREvalObjv(interp, objc-1, objv+1, 0, NULL);
 }
 
 static int
@@ -8415,19 +8398,9 @@ TailcallCleanup(
     int result)
 {
     Tcl_DecrRefCount((Tcl_Obj *) data[0]);
-    Tcl_DecrRefCount((Tcl_Obj *) data[1]);
     return result;
 }
 
-static void
-ClearTailcall(
-    Tcl_Interp *interp,
-    NRE_callback *tailcallPtr)
-{
-    TailcallCleanup(tailcallPtr->data, interp, TCL_OK);
-    TCLNR_FREE(interp, tailcallPtr);
-}
-
 
 void
 Tcl_NRAddCallback(
@@ -8494,7 +8467,7 @@ TclNRYieldObjCmd(
     }
 
     NRE_ASSERT(!COR_IS_SUSPENDED(corPtr));
-    TclNRAddCallback(interp, NRCoroutineActivateCallback, corPtr,
+    TclNRAddCallback(interp, TclNRCoroutineActivateCallback, corPtr,
             clientData, NULL, NULL);
     return TCL_OK;
 }
@@ -8508,8 +8481,7 @@ TclNRYieldToObjCmd(
 {
     CoroutineData *corPtr = iPtr->execEnvPtr->corPtr;
     Tcl_Obj *listPtr, *nsObjPtr;
-    Tcl_Namespace *nsPtr = (Tcl_Namespace *) iPtr->varFramePtr->nsPtr;
-    Tcl_Namespace *ns1Ptr;
+    Tcl_Namespace *nsPtr = TclGetCurrentNamespace(interp);
 
     if (objc < 2) {
 	Tcl_WrongNumArgs(interp, 1, objv, "command ?arg ...?");
@@ -8523,56 +8495,34 @@ TclNRYieldToObjCmd(
 	return TCL_ERROR;
     }
 
+    if (((Namespace *) nsPtr)->flags & NS_DYING) {
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"yieldto called in deleted namespace", -1));
+        Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "YIELDTO_IN_DELETED",
+		NULL);
+        return TCL_ERROR;
+    }
+
     /*
      * Add the tailcall in the caller env, then just yield.
      *
      * This is essentially code from TclNRTailcallObjCmd
      */
 
-    listPtr = Tcl_NewListObj(objc-1, objv+1);
-    Tcl_IncrRefCount(listPtr);
-
+    listPtr = Tcl_NewListObj(objc, objv);
     nsObjPtr = Tcl_NewStringObj(nsPtr->fullName, -1);
-    if ((TCL_OK != TclGetNamespaceFromObj(interp, nsObjPtr, &ns1Ptr))
-	    || (nsPtr != ns1Ptr)) {
-	Tcl_Panic("yieldto failed to find the proper namespace");
-    }
-    Tcl_IncrRefCount(nsObjPtr);
+    TclListObjSetElement(interp, listPtr, 0, nsObjPtr);
 
     /*
      * Add the callback in the caller's env, then instruct TEBC to yield.
      */
 
     iPtr->execEnvPtr = corPtr->callerEEPtr;
-    TclNRAddCallback(interp, YieldToCallback, corPtr, listPtr, nsObjPtr,
-	    NULL);
+    TclSetTailcall(interp, listPtr);
     iPtr->execEnvPtr = corPtr->eePtr;
 
     return TclNRYieldObjCmd(INT2PTR(CORO_ACTIVATE_YIELDM), interp, 1, objv);
 }
-
-static int
-YieldToCallback(
-    ClientData data[],
-    Tcl_Interp *interp,
-    int result)
-{
-    /* CoroutineData *corPtr = data[0];*/
-    Tcl_Obj *listPtr = data[1];
-    ClientData nsPtr = data[2];
-    NRE_callback *cbPtr;
-
-    /*
-     * yieldTo: invoke the command using tailcall tech.
-     */
-
-    TclNRAddCallback(interp, NRTailcallEval, listPtr, nsPtr, NULL, NULL);
-    cbPtr = TOP_CB(interp);
-    TOP_CB(interp) = cbPtr->nextPtr;
-
-    TclSpliceTailcall(interp, cbPtr);
-    return TCL_OK;
-}
 
 static int
 RewindCoroutineCallback(
@@ -8711,7 +8661,7 @@ NRCoroutineExitCallback(
 /*
  *----------------------------------------------------------------------
  *
- * NRCoroutineActivateCallback --
+ * TclNRCoroutineActivateCallback --
  *
  *      This is the workhorse for coroutines: it implements both yield and
  *      resume.
@@ -8725,8 +8675,8 @@ NRCoroutineExitCallback(
  *----------------------------------------------------------------------
  */
 
-static int
-NRCoroutineActivateCallback(
+int
+TclNRCoroutineActivateCallback(
     ClientData data[],
     Tcl_Interp *interp,
     int result)
@@ -8852,7 +8802,7 @@ NRCoroInjectObjCmd(
 
     return TCL_OK;
 }
-
+
 int
 TclNRInterpCoroutine(
     ClientData clientData,
@@ -8901,7 +8851,7 @@ TclNRInterpCoroutine(
         break;
     }
 
-    TclNRAddCallback(interp, NRCoroutineActivateCallback, corPtr,
+    TclNRAddCallback(interp, TclNRCoroutineActivateCallback, corPtr,
             NULL, NULL, NULL);
     return TCL_OK;
 }
@@ -9027,7 +8977,6 @@ TclNRCoroutineObjCmd(
     corPtr->running.lineLABCPtr = corPtr->lineLABCPtr;
     corPtr->stackLevel = NULL;
     corPtr->auxNumLevels = 0;
-    iPtr->numLevels--;
 
     /*
      * Create the coro's execEnv, switch to it to push the exit and coro
@@ -9046,19 +8995,20 @@ TclNRCoroutineObjCmd(
     TclNRAddCallback(interp, NRCoroutineExitCallback, corPtr,
 	    NULL, NULL, NULL);
 
+    /* insure that the command is looked up in the correct namespace */
     iPtr->lookupNsPtr = lookupNsPtr;
     Tcl_NREvalObj(interp, Tcl_NewListObj(objc-2, objv+2), 0);
+    iPtr->numLevels--;
 
     SAVE_CONTEXT(corPtr->running);
     RESTORE_CONTEXT(corPtr->caller);
     iPtr->execEnvPtr = corPtr->callerEEPtr;
 
     /*
-     * Now just resume the coroutine. Take care to insure that the command is
-     * looked up in the correct namespace.
+     * Now just resume the coroutine.
      */
 
-    TclNRAddCallback(interp, NRCoroutineActivateCallback, corPtr,
+    TclNRAddCallback(interp, TclNRCoroutineActivateCallback, corPtr,
             NULL, NULL, NULL);
     return TCL_OK;
 }
diff --git a/generic/tclBinary.c b/generic/tclBinary.c
index 3d8b24c..981f174 100644
--- a/generic/tclBinary.c
+++ b/generic/tclBinary.c
@@ -87,10 +87,13 @@ static int		BinaryDecodeHex(ClientData clientData,
 static int		BinaryEncode64(ClientData clientData,
 			    Tcl_Interp *interp,
 			    int objc, Tcl_Obj *const objv[]);
-static int		BinaryDecodeUu(ClientData clientData,
+static int		BinaryDecode64(ClientData clientData,
 			    Tcl_Interp *interp,
 			    int objc, Tcl_Obj *const objv[]);
-static int		BinaryDecode64(ClientData clientData,
+static int		BinaryEncodeUu(ClientData clientData,
+			    Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const objv[]);
+static int		BinaryDecodeUu(ClientData clientData,
 			    Tcl_Interp *interp,
 			    int objc, Tcl_Obj *const objv[]);
 
@@ -128,6 +131,30 @@ static const char B64Digits[65] = {
 };
 
 /*
+ * How to construct the ensembles.
+ */
+
+static const EnsembleImplMap binaryMap[] = {
+    { "format", BinaryFormatCmd, TclCompileBasicMin1ArgCmd, NULL, NULL, 0 },
+    { "scan",   BinaryScanCmd, TclCompileBasicMin2ArgCmd, NULL, NULL, 0 },
+    { "encode", NULL, NULL, NULL, NULL, 0 },
+    { "decode", NULL, NULL, NULL, NULL, 0 },
+    { NULL, NULL, NULL, NULL, NULL, 0 }
+};
+static const EnsembleImplMap encodeMap[] = {
+    { "hex",      BinaryEncodeHex, TclCompileBasic1ArgCmd, NULL, NULL, 0 },
+    { "uuencode", BinaryEncodeUu,  NULL, NULL, NULL, 0 },
+    { "base64",   BinaryEncode64,  NULL, NULL, NULL, 0 },
+    { NULL, NULL, NULL, NULL, NULL, 0 }
+};
+static const EnsembleImplMap decodeMap[] = {
+    { "hex",      BinaryDecodeHex, TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
+    { "uuencode", BinaryDecodeUu,  TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
+    { "base64",   BinaryDecode64,  TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
+    { NULL, NULL, NULL, NULL, NULL, 0 }
+};
+
+/*
  * The following object type represents an array of bytes. An array of bytes
  * is not equivalent to an internationalized string. Conceptually, a string is
  * an array of 16-bit quantities organized as a sequence of properly formed
@@ -180,9 +207,10 @@ typedef struct ByteArray {
 #define BYTEARRAY_SIZE(len) \
 		((unsigned) (TclOffset(ByteArray, bytes) + (len)))
 #define GET_BYTEARRAY(objPtr) \
-		((ByteArray *) (objPtr)->internalRep.otherValuePtr)
+		((ByteArray *) (objPtr)->internalRep.twoPtrValue.ptr1)
 #define SET_BYTEARRAY(objPtr, baPtr) \
-		(objPtr)->internalRep.otherValuePtr = (void *) (baPtr)
+		(objPtr)->internalRep.twoPtrValue.ptr1 = (void *) (baPtr)
+
 
 /*
  *----------------------------------------------------------------------
@@ -301,7 +329,7 @@ Tcl_SetByteArrayObj(
 	Tcl_Panic("%s called with shared object", "Tcl_SetByteArrayObj");
     }
     TclFreeIntRep(objPtr);
-    Tcl_InvalidateStringRep(objPtr);
+    TclInvalidateStringRep(objPtr);
 
     if (length < 0) {
 	length = 0;
@@ -396,7 +424,7 @@ Tcl_SetByteArrayLength(
 	byteArrayPtr->allocated = length;
 	SET_BYTEARRAY(objPtr, byteArrayPtr);
     }
-    Tcl_InvalidateStringRep(objPtr);
+    TclInvalidateStringRep(objPtr);
     byteArrayPtr->used = length;
     return byteArrayPtr->bytes;
 }
@@ -582,9 +610,7 @@ UpdateStringOfByteArray(
  *
  *	This function appends an array of bytes to a byte array object. Note
  *	that the object *must* be unshared, and the array of bytes *must not*
- *	refer to the object being appended to.  Also the caller must have
- *	already checked that the final length of the bytearray after the
- *	append operations is complete will not overflow the int range.
+ *	refer to the object being appended to.
  *
  * Results:
  *	None.
@@ -603,6 +629,7 @@ TclAppendBytesToByteArray(
     int len)
 {
     ByteArray *byteArrayPtr;
+    int needed;
 
     if (Tcl_IsShared(objPtr)) {
 	Tcl_Panic("%s called with shared object","TclAppendBytesToByteArray");
@@ -611,64 +638,57 @@ TclAppendBytesToByteArray(
 	Tcl_Panic("%s must be called with definite number of bytes to append",
 		"TclAppendBytesToByteArray");
     }
+    if (len == 0) {
+	/* Append zero bytes is a no-op. */
+	return;
+    }
     if (objPtr->typePtr != &tclByteArrayType) {
 	SetByteArrayFromAny(NULL, objPtr);
     }
     byteArrayPtr = GET_BYTEARRAY(objPtr);
 
+    if (len > INT_MAX - byteArrayPtr->used) {
+	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
+    }
+
+    needed = byteArrayPtr->used + len;
     /*
      * If we need to, resize the allocated space in the byte array.
      */
 
-    if (byteArrayPtr->used + len > byteArrayPtr->allocated) {
-	unsigned int attempt, used = byteArrayPtr->used;
-	ByteArray *tmpByteArrayPtr = NULL;
-
-	attempt = byteArrayPtr->allocated;
-	if (attempt < 1) {
-	    /*
-	     * No allocated bytes, so must be none used too. We use this
-	     * method to calculate how many bytes to allocate because we can
-	     * end up with a zero-length buffer otherwise, when doubling can
-	     * cause trouble. [Bug 3067036]
-	     */
+    if (needed > byteArrayPtr->allocated) {
+	ByteArray *ptr = NULL;
+	int attempt;
 
-	    attempt = len + 1;
-	} else {
-	    do {
-		attempt *= 2;
-	    } while (attempt < used+len);
+	if (needed <= INT_MAX/2) {
+	    /* Try to allocate double the total space that is needed. */
+	    attempt = 2 * needed;
+	    ptr = attemptckrealloc(byteArrayPtr, BYTEARRAY_SIZE(attempt));
 	}
-
-	if (BYTEARRAY_SIZE(attempt) > BYTEARRAY_SIZE(used)) {
-	    tmpByteArrayPtr = attemptckrealloc(byteArrayPtr,
-		    BYTEARRAY_SIZE(attempt));
+	if (ptr == NULL) {
+	    /* Try to allocate double the increment that is needed (plus). */
+	    unsigned int limit = INT_MAX - needed;
+	    unsigned int extra = len + TCL_MIN_GROWTH;
+	    int growth = (int) ((extra > limit) ? limit : extra);
+
+	    attempt = needed + growth;
+	    ptr = attemptckrealloc(byteArrayPtr, BYTEARRAY_SIZE(attempt));
 	}
-
-	if (tmpByteArrayPtr == NULL) {
-	    attempt = used + len;
-	    if (BYTEARRAY_SIZE(attempt) < BYTEARRAY_SIZE(used)) {
-		Tcl_Panic("attempt to allocate a bigger buffer than we can handle");
-	    }
-	    tmpByteArrayPtr = ckrealloc(byteArrayPtr,
-		    BYTEARRAY_SIZE(attempt));
+	if (ptr == NULL) {
+	    /* Last chance: Try to allocate exactly what is needed. */
+	    attempt = needed;
+	    ptr = ckrealloc(byteArrayPtr, BYTEARRAY_SIZE(attempt));
 	}
-
-	byteArrayPtr = tmpByteArrayPtr;
+	byteArrayPtr = ptr;
 	byteArrayPtr->allocated = attempt;
-	byteArrayPtr->used = used;
 	SET_BYTEARRAY(objPtr, byteArrayPtr);
     }
 
-    /*
-     * Do the append if there's any point.
-     */
-
-    if (len > 0) {
+    if (bytes) {
 	memcpy(byteArrayPtr->bytes + byteArrayPtr->used, bytes, len);
-	byteArrayPtr->used += len;
-	Tcl_InvalidateStringRep(objPtr);
     }
+    byteArrayPtr->used += len;
+    TclInvalidateStringRep(objPtr);
 }
 
 /*
@@ -688,26 +708,6 @@ TclAppendBytesToByteArray(
  *----------------------------------------------------------------------
  */
 
-static const EnsembleImplMap binaryMap[] = {
-{ "format", BinaryFormatCmd, NULL, NULL, NULL, 0 },
-{ "scan",   BinaryScanCmd, NULL, NULL, NULL, 0 },
-{ "encode", NULL, NULL, NULL, NULL, 0 },
-{ "decode", NULL, NULL, NULL, NULL, 0 },
-{ NULL, NULL, NULL, NULL, NULL, 0 }
-};
-static const EnsembleImplMap encodeMap[] = {
-{ "hex",      BinaryEncodeHex, NULL, NULL, (ClientData)HexDigits, 0 },
-{ "uuencode", BinaryEncode64,  NULL, NULL, (ClientData)UueDigits, 0 },
-{ "base64",   BinaryEncode64,  NULL, NULL, (ClientData)B64Digits, 0 },
-{ NULL, NULL, NULL, NULL, NULL, 0 }
-};
-static const EnsembleImplMap decodeMap[] = {
-{ "hex",      BinaryDecodeHex, NULL, NULL, NULL, 0 },
-{ "uuencode", BinaryDecodeUu,  NULL, NULL, NULL, 0 },
-{ "base64",   BinaryDecode64,  NULL, NULL, NULL, 0 },
-{ NULL, NULL, NULL, NULL, NULL, 0 }
-};
-
 Tcl_Command
 TclInitBinaryCmd(
     Tcl_Interp *interp)
@@ -2307,7 +2307,6 @@ BinaryEncodeHex(
     Tcl_Obj *resultObj = NULL;
     unsigned char *data = NULL;
     unsigned char *cursor = NULL;
-    const char *digits = clientData;
     int offset = 0, count = 0;
 
     if (objc != 2) {
@@ -2319,8 +2318,8 @@ BinaryEncodeHex(
     data = Tcl_GetByteArrayFromObj(objv[1], &count);
     cursor = Tcl_SetByteArrayLength(resultObj, count * 2);
     for (offset = 0; offset < count; ++offset) {
-	*cursor++ = digits[((data[offset] >> 4) & 0x0f)];
-	*cursor++ = digits[(data[offset] & 0x0f)];
+	*cursor++ = HexDigits[((data[offset] >> 4) & 0x0f)];
+	*cursor++ = HexDigits[(data[offset] & 0x0f)];
     }
     Tcl_SetObjResult(interp, resultObj);
     return TCL_OK;
@@ -2357,7 +2356,7 @@ BinaryDecodeHex(
     static const char *const optStrings[] = { "-strict", NULL };
 
     if (objc < 2 || objc > 3) {
-	Tcl_WrongNumArgs(interp, 1, objv, "data");
+	Tcl_WrongNumArgs(interp, 1, objv, "?options? data");
 	return TCL_ERROR;
     }
     for (i = 1; i < objc-1; ++i) {
@@ -2381,29 +2380,32 @@ BinaryDecodeHex(
     while (data < dataend) {
 	value = 0;
 	for (i=0 ; i<2 ; i++) {
-	    if (data < dataend) {
-		c = *data++;
-
-		if (!isxdigit((int) c)) {
-		    if (strict || !isspace(c)) {
-			goto badChar;
-		    }
-		    i--;
-		    continue;
-		}
+	    if (data >= dataend) {
 		value <<= 4;
-		c -= '0';
-		if (c > 9) {
-		    c += ('0' - 'A') + 10;
-		}
-		if (c > 16) {
-		    c += ('A' - 'a');
+		break;
+	    }
+
+	    c = *data++;
+	    if (!isxdigit((int) c)) {
+		if (strict || !isspace(c)) {
+		    goto badChar;
 		}
-		value |= (c & 0xf);
-	    } else {
-		value <<= 4;
-		cut++;
+		i--;
+		continue;
 	    }
+
+	    value <<= 4;
+	    c -= '0';
+	    if (c > 9) {
+		c += ('0' - 'A') + 10;
+	    }
+	    if (c > 16) {
+		c += ('A' - 'a');
+	    }
+	    value |= (c & 0xf);
+	}
+	if (i < 2) {
+	    cut++;
 	}
 	*cursor++ = UCHAR(value);
 	value = 0;
@@ -2431,7 +2433,7 @@ BinaryDecodeHex(
  *	This implements a generic 6 bit binary encoding. Input is broken into
  *	6 bit chunks and a lookup table passed in via clientData is used to
  *	turn these values into output characters. This is used to implement
- *	base64 and uuencode binary encodings.
+ *	base64 binary encodings.
  *
  * Results:
  *	Interp result set to an encoded byte array object
@@ -2467,7 +2469,6 @@ BinaryEncode64(
 {
     Tcl_Obj *resultObj;
     unsigned char *data, *cursor, *limit;
-    const char *digits = clientData;
     int maxlen = 0;
     const char *wrapchar = "\n";
     int wrapcharlen = 1;
@@ -2490,6 +2491,13 @@ BinaryEncode64(
 	    if (Tcl_GetIntFromObj(interp, objv[i+1], &maxlen) != TCL_OK) {
 		return TCL_ERROR;
 	    }
+	    if (maxlen < 0) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"line length out of range", -1));
+		Tcl_SetErrorCode(interp, "TCL", "BINARY", "ENCODE",
+			"LINE_LENGTH", NULL);
+		return TCL_ERROR;
+	    }
 	    break;
 	case OPT_WRAPCHAR:
 	    wrapchar = Tcl_GetStringFromObj(objv[i+1], &wrapcharlen);
@@ -2520,17 +2528,17 @@ BinaryEncode64(
 	    for (i = 0; i < 3 && offset+i < count; ++i) {
 		d[i] = data[offset + i];
 	    }
-	    OUTPUT(digits[d[0] >> 2]);
-	    OUTPUT(digits[((d[0] & 0x03) << 4) | (d[1] >> 4)]);
+	    OUTPUT(B64Digits[d[0] >> 2]);
+	    OUTPUT(B64Digits[((d[0] & 0x03) << 4) | (d[1] >> 4)]);
 	    if (offset+1 < count) {
-		OUTPUT(digits[((d[1] & 0x0f) << 2) | (d[2] >> 6)]);
+		OUTPUT(B64Digits[((d[1] & 0x0f) << 2) | (d[2] >> 6)]);
 	    } else {
-		OUTPUT(digits[64]);
+		OUTPUT(B64Digits[64]);
 	    }
 	    if (offset+2 < count) {
-		OUTPUT(digits[d[2] & 0x3f]);
+		OUTPUT(B64Digits[d[2] & 0x3f]);
 	    } else {
-		OUTPUT(digits[64]);
+		OUTPUT(B64Digits[64]);
 	    }
 	}
     }
@@ -2542,6 +2550,125 @@ BinaryEncode64(
 /*
  *----------------------------------------------------------------------
  *
+ * BinaryEncodeUu --
+ *
+ *	This implements the uuencode binary encoding. Input is broken into 6
+ *	bit chunks and a lookup table is used to turn these values into output
+ *	characters. This differs from the generic code above in that line
+ *	lengths are also encoded.
+ *
+ * Results:
+ *	Interp result set to an encoded byte array object
+ *
+ * Side effects:
+ *	None
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+BinaryEncodeUu(
+    ClientData clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_Obj *resultObj;
+    unsigned char *data, *start, *cursor;
+    int offset, count, rawLength, n, i, j, bits, index;
+    int lineLength = 61;
+    const unsigned char SingleNewline[] = { (unsigned char) '\n' };
+    const unsigned char *wrapchar = SingleNewline;
+    int wrapcharlen = sizeof(SingleNewline);
+    enum { OPT_MAXLEN, OPT_WRAPCHAR };
+    static const char *const optStrings[] = { "-maxlen", "-wrapchar", NULL };
+
+    if (objc < 2 || objc%2 != 0) {
+	Tcl_WrongNumArgs(interp, 1, objv,
+		"?-maxlen len? ?-wrapchar char? data");
+	return TCL_ERROR;
+    }
+    for (i = 1; i < objc-1; i += 2) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], optStrings, "option",
+		TCL_EXACT, &index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	switch (index) {
+	case OPT_MAXLEN:
+	    if (Tcl_GetIntFromObj(interp, objv[i+1], &lineLength) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    if (lineLength < 3 || lineLength > 85) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"line length out of range", -1));
+		Tcl_SetErrorCode(interp, "TCL", "BINARY", "ENCODE",
+			"LINE_LENGTH", NULL);
+		return TCL_ERROR;
+	    }
+	    break;
+	case OPT_WRAPCHAR:
+	    wrapchar = Tcl_GetByteArrayFromObj(objv[i+1], &wrapcharlen);
+	    break;
+	}
+    }
+
+    /*
+     * Allocate the buffer. This is a little bit too long, but is "good
+     * enough".
+     */
+
+    resultObj = Tcl_NewObj();
+    offset = 0;
+    data = Tcl_GetByteArrayFromObj(objv[objc-1], &count);
+    rawLength = (lineLength - 1) * 3 / 4;
+    start = cursor = Tcl_SetByteArrayLength(resultObj,
+	    (lineLength + wrapcharlen) *
+	    ((count + (rawLength - 1)) / rawLength));
+    n = bits = 0;
+
+    /*
+     * Encode the data. Each output line first has the length of raw data
+     * encoded by the output line described in it by one encoded byte, then
+     * the encoded data follows (encoding each 6 bits as one character).
+     * Encoded lines are always terminated by a newline.
+     */
+
+    while (offset < count) {
+	int lineLen = count - offset;
+
+	if (lineLen > rawLength) {
+	    lineLen = rawLength;
+	}
+	*cursor++ = UueDigits[lineLen];
+	for (i=0 ; i<lineLen ; i++) {
+	    n <<= 8;
+	    n |= data[offset++];
+	    for (bits += 8; bits > 6 ; bits -= 6) {
+		*cursor++ = UueDigits[(n >> (bits-6)) & 0x3f];
+	    }
+	}
+	if (bits > 0) {
+	    n <<= 8;
+	    *cursor++ = UueDigits[(n >> (bits + 2)) & 0x3f];
+	    bits = 0;
+	}
+	for (j=0 ; j<wrapcharlen ; ++j) {
+	    *cursor++ = wrapchar[j];
+	}
+    }
+
+    /*
+     * Fix the length of the output bytearray.
+     */
+
+    Tcl_SetByteArrayLength(resultObj, cursor-start);
+    Tcl_SetObjResult(interp, resultObj);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * BinaryDecodeUu --
  *
  *	Decode a uuencoded string.
@@ -2565,13 +2692,13 @@ BinaryDecodeUu(
     Tcl_Obj *resultObj = NULL;
     unsigned char *data, *datastart, *dataend;
     unsigned char *begin, *cursor;
-    int i, index, size, count = 0, cut = 0, strict = 0;
-    char c;
+    int i, index, size, count = 0, strict = 0, lineLen;
+    unsigned char c;
     enum {OPT_STRICT };
     static const char *const optStrings[] = { "-strict", NULL };
 
     if (objc < 2 || objc > 3) {
-	Tcl_WrongNumArgs(interp, 1, objv, "data");
+	Tcl_WrongNumArgs(interp, 1, objv, "?options? data");
 	return TCL_ERROR;
     }
     for (i = 1; i < objc-1; ++i) {
@@ -2592,44 +2719,112 @@ BinaryDecodeUu(
     dataend = data + count;
     size = ((count + 3) & ~3) * 3 / 4;
     begin = cursor = Tcl_SetByteArrayLength(resultObj, size);
+    lineLen = -1;
+
+    /*
+     * The decoding loop. First, we get the length of line (strictly, the
+     * number of data bytes we expect to generate from the line) we're
+     * processing this time round if it is not already known (i.e., when the
+     * lineLen variable is set to the magic value, -1).
+     */
+
     while (data < dataend) {
 	char d[4] = {0, 0, 0, 0};
 
+	if (lineLen < 0) {
+	    c = *data++;
+	    if (c < 32 || c > 96) {
+		if (strict || !isspace(c)) {
+		    goto badUu;
+		}
+		i--;
+		continue;
+	    }
+	    lineLen = (c - 32) & 0x3f;
+	}
+
+	/*
+	 * Now we read a four-character grouping.
+	 */
+
 	for (i=0 ; i<4 ; i++) {
 	    if (data < dataend) {
 		d[i] = c = *data++;
-		if (c < 33 || c > 96) {
-		    if (strict || !isspace(UCHAR(c))) {
-			goto badUu;
+		if (c < 32 || c > 96) {
+		    if (strict) {
+			if (!isspace(c)) {
+			    goto badUu;
+			} else if (c == '\n') {
+			    goto shortUu;
+			}
 		    }
 		    i--;
 		    continue;
 		}
-	    } else {
-		cut++;
 	    }
 	}
-	if (cut > 3) {
-	    cut = 3;
+
+	/*
+	 * Translate that grouping into (up to) three binary bytes output.
+	 */
+
+	if (lineLen > 0) {
+	    *cursor++ = (((d[0] - 0x20) & 0x3f) << 2)
+		    | (((d[1] - 0x20) & 0x3f) >> 4);
+	    if (--lineLen > 0) {
+		*cursor++ = (((d[1] - 0x20) & 0x3f) << 4)
+			| (((d[2] - 0x20) & 0x3f) >> 2);
+		if (--lineLen > 0) {
+		    *cursor++ = (((d[2] - 0x20) & 0x3f) << 6)
+			    | (((d[3] - 0x20) & 0x3f));
+		    lineLen--;
+		}
+	    }
+	}
+
+	/*
+	 * If we've reached the end of the line, skip until we process a
+	 * newline.
+	 */
+
+	if (lineLen == 0 && data < dataend) {
+	    lineLen = -1;
+	    do {
+		c = *data++;
+		if (c == '\n') {
+		    break;
+		} else if (c >= 32 && c <= 96) {
+		    data--;
+		    break;
+		} else if (strict || !isspace(c)) {
+		    goto badUu;
+		}
+	    } while (data < dataend);
 	}
-	*cursor++ = (((d[0] - 0x20) & 0x3f) << 2)
-		| (((d[1] - 0x20) & 0x3f) >> 4);
-	*cursor++ = (((d[1] - 0x20) & 0x3f) << 4)
-		| (((d[2] - 0x20) & 0x3f) >> 2);
-	*cursor++ = (((d[2] - 0x20) & 0x3f) << 6)
-		| (((d[3] - 0x20) & 0x3f));
     }
-    if (cut > size) {
-	cut = size;
+
+    /*
+     * Sanity check, clean up and finish.
+     */
+
+    if (lineLen > 0 && strict) {
+	goto shortUu;
     }
-    Tcl_SetByteArrayLength(resultObj, cursor - begin - cut);
+    Tcl_SetByteArrayLength(resultObj, cursor - begin);
     Tcl_SetObjResult(interp, resultObj);
     return TCL_OK;
 
+  shortUu:
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf("short uuencode data"));
+    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "SHORT", NULL);
+    TclDecrRefCount(resultObj);
+    return TCL_ERROR;
+
   badUu:
     Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 	    "invalid uuencode character \"%c\" at position %d",
 	    c, (int) (data - datastart - 1)));
+    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "INVALID", NULL);
     TclDecrRefCount(resultObj);
     return TCL_ERROR;
 }
@@ -2658,16 +2853,16 @@ BinaryDecode64(
     Tcl_Obj *const objv[])
 {
     Tcl_Obj *resultObj = NULL;
-    unsigned char *data, *datastart, *dataend, c;
+    unsigned char *data, *datastart, *dataend, c = '\0';
     unsigned char *begin = NULL;
     unsigned char *cursor = NULL;
     int strict = 0;
     int i, index, size, cut = 0, count = 0;
-    enum {OPT_STRICT };
+    enum { OPT_STRICT };
     static const char *const optStrings[] = { "-strict", NULL };
 
     if (objc < 2 || objc > 3) {
-	Tcl_WrongNumArgs(interp, 1, objv, "data");
+	Tcl_WrongNumArgs(interp, 1, objv, "?options? data");
 	return TCL_ERROR;
     }
     for (i = 1; i < objc-1; ++i) {
@@ -2691,43 +2886,85 @@ BinaryDecode64(
     while (data < dataend) {
 	unsigned long value = 0;
 
-	for (i=0 ; i<4 ; i++) {
+	/*
+	 * Decode the current block. Each base64 block consists of four input
+	 * characters A-Z, a-z, 0-9, +, or /. Each character supplies six bits
+	 * of output data, so each block's output is 24 bits (three bytes) in
+	 * length. The final block can be shorter by one or two bytes, denoted
+	 * by the input ending with one or two ='s, respectively.
+	 */
+
+	for (i = 0; i < 4; i++) {
+	    /*
+	     * Get the next input character. At end of input, pad with at most
+	     * two ='s. If more than two ='s would be needed, instead discard
+	     * the block read thus far.
+	     */
+
 	    if (data < dataend) {
 		c = *data++;
+	    } else if (i > 1) {
+		c = '=';
+	    } else {
+		cut += 3;
+		break;
+	    }
 
-		if (c >= 'A' && c <= 'Z') {
-		    value = (value << 6) | ((c - 'A') & 0x3f);
-		} else if (c >= 'a' && c <= 'z') {
-		    value = (value << 6) | ((c - 'a' + 26) & 0x3f);
-		} else if (c >= '0' && c <= '9') {
-		    value = (value << 6) | ((c - '0' + 52) & 0x3f);
-		} else if (c == '+') {
-		    value = (value << 6) | 0x3e;
-		} else if (c == '/') {
-		    value = (value << 6) | 0x3f;
-		} else if (c == '=') {
-		    value <<= 6;
-		    if (cut < 2) {
-			cut++;
-		    }
+	    /*
+	     * Load the character into the block value. Handle ='s specially
+	     * because they're only valid as the last character or two of the
+	     * final block of input. Unless strict mode is enabled, skip any
+	     * input whitespace characters.
+	     */
+
+	    if (cut) {
+		if (c == '=' && i > 1) {
+		     value <<= 6;
+		     cut++;
+		} else if (!strict && isspace(c)) {
+		     i--;
 		} else {
-		    if (strict || !isspace(c)) {
-			goto bad64;
-		    }
-		    i--;
-		    continue;
+		    goto bad64;
 		}
-	    } else {
+	    } else if (c >= 'A' && c <= 'Z') {
+		value = (value << 6) | ((c - 'A') & 0x3f);
+	    } else if (c >= 'a' && c <= 'z') {
+		value = (value << 6) | ((c - 'a' + 26) & 0x3f);
+	    } else if (c >= '0' && c <= '9') {
+		value = (value << 6) | ((c - '0' + 52) & 0x3f);
+	    } else if (c == '+') {
+		value = (value << 6) | 0x3e;
+	    } else if (c == '/') {
+		value = (value << 6) | 0x3f;
+	    } else if (c == '=') {
 		value <<= 6;
 		cut++;
+	    } else if (strict || !isspace(c)) {
+		goto bad64;
+	    } else {
+		i--;
 	    }
 	}
 	*cursor++ = UCHAR((value >> 16) & 0xff);
 	*cursor++ = UCHAR((value >> 8) & 0xff);
 	*cursor++ = UCHAR(value & 0xff);
-    }
-    if (cut > size) {
-	cut = size;
+
+	/*
+	 * Since = is only valid within the final block, if it was encountered
+	 * but there are still more input characters, confirm that strict mode
+	 * is off and all subsequent characters are whitespace.
+	 */
+
+	if (cut && data < dataend) {
+	    if (strict) {
+		goto bad64;
+	    }
+	    for (; data < dataend; data++) {
+		if (!isspace(*data)) {
+		    goto bad64;
+		}
+	    }
+	}
     }
     Tcl_SetByteArrayLength(resultObj, cursor - begin - cut);
     Tcl_SetObjResult(interp, resultObj);
diff --git a/generic/tclCkalloc.c b/generic/tclCkalloc.c
index ab977cb..70e64f0 100644
--- a/generic/tclCkalloc.c
+++ b/generic/tclCkalloc.c
@@ -156,6 +156,10 @@ TclInitDbCkalloc(void)
     if (!ckallocInit) {
 	ckallocInit = 1;
 	ckallocMutexPtr = Tcl_GetAllocMutex();
+#ifndef TCL_THREADS
+	/* Silence compiler warning */
+	(void)ckallocMutexPtr;
+#endif
     }
 }
 
diff --git a/generic/tclClock.c b/generic/tclClock.c
index 6d2976d..9d4bcd6 100644
--- a/generic/tclClock.c
+++ b/generic/tclClock.c
@@ -19,7 +19,7 @@
  * Windows has mktime. The configurators do not check.
  */
 
-#ifdef __WIN32__
+#ifdef _WIN32
 #define HAVE_MKTIME 1
 #endif
 
@@ -522,6 +522,46 @@ ClockGetdatefieldsObjCmd(
  */
 
 static int
+FetchEraField(
+    Tcl_Interp *interp,
+    Tcl_Obj *dict,
+    Tcl_Obj *key,
+    int *storePtr)
+{
+    Tcl_Obj *value = NULL;
+
+    if (Tcl_DictObjGet(interp, dict, key, &value) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    if (value == NULL) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"expected key(s) not found in dictionary", -1));
+	return TCL_ERROR;
+    }
+    return Tcl_GetIndexFromObj(interp, value, eras, "era", TCL_EXACT, storePtr);
+}
+
+static int
+FetchIntField(
+    Tcl_Interp *interp,
+    Tcl_Obj *dict,
+    Tcl_Obj *key,
+    int *storePtr)
+{
+    Tcl_Obj *value = NULL;
+
+    if (Tcl_DictObjGet(interp, dict, key, &value) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    if (value == NULL) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"expected key(s) not found in dictionary", -1));
+	return TCL_ERROR;
+    }
+    return TclGetIntFromObj(interp, value, storePtr);
+}
+
+static int
 ClockGetjuliandayfromerayearmonthdayObjCmd(
     ClientData clientData,	/* Opaque pointer to literal pool, etc. */
     Tcl_Interp *interp,		/* Tcl interpreter */
@@ -532,7 +572,6 @@ ClockGetjuliandayfromerayearmonthdayObjCmd(
     Tcl_Obj *dict;
     ClockClientData *data = clientData;
     Tcl_Obj *const *literals = data->literals;
-    Tcl_Obj *fieldPtr;
     int changeover;
     int copied = 0;
     int status;
@@ -547,18 +586,13 @@ ClockGetjuliandayfromerayearmonthdayObjCmd(
 	return TCL_ERROR;
     }
     dict = objv[1];
-    if (Tcl_DictObjGet(interp, dict, literals[LIT_ERA], &fieldPtr) != TCL_OK
-	    || Tcl_GetIndexFromObj(interp, fieldPtr, eras, "era", TCL_EXACT,
-		&era) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_YEAR],
-		&fieldPtr) != TCL_OK
-	    || TclGetIntFromObj(interp, fieldPtr, &fields.year) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_MONTH],
-		&fieldPtr) != TCL_OK
-	    || TclGetIntFromObj(interp, fieldPtr, &fields.month) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_DAYOFMONTH],
-		&fieldPtr) != TCL_OK
-	    || TclGetIntFromObj(interp, fieldPtr, &fields.dayOfMonth)!=TCL_OK
+    if (FetchEraField(interp, dict, literals[LIT_ERA], &era) != TCL_OK
+	    || FetchIntField(interp, dict, literals[LIT_YEAR], &fields.year)
+		!= TCL_OK
+	    || FetchIntField(interp, dict, literals[LIT_MONTH], &fields.month)
+		!= TCL_OK
+	    || FetchIntField(interp, dict, literals[LIT_DAYOFMONTH],
+		&fields.dayOfMonth) != TCL_OK
 	    || TclGetIntFromObj(interp, objv[2], &changeover) != TCL_OK) {
 	return TCL_ERROR;
     }
@@ -622,7 +656,6 @@ ClockGetjuliandayfromerayearweekdayObjCmd(
     Tcl_Obj *dict;
     ClockClientData *data = clientData;
     Tcl_Obj *const *literals = data->literals;
-    Tcl_Obj *fieldPtr;
     int changeover;
     int copied = 0;
     int status;
@@ -637,18 +670,13 @@ ClockGetjuliandayfromerayearweekdayObjCmd(
 	return TCL_ERROR;
     }
     dict = objv[1];
-    if (Tcl_DictObjGet(interp, dict, literals[LIT_ERA], &fieldPtr) != TCL_OK
-	    || Tcl_GetIndexFromObj(interp, fieldPtr, eras, "era", TCL_EXACT,
-		&era) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_ISO8601YEAR],
-		&fieldPtr) != TCL_OK
-	    || TclGetIntFromObj(interp, fieldPtr, &fields.iso8601Year)!=TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_ISO8601WEEK],
-		&fieldPtr) != TCL_OK
-	    || TclGetIntFromObj(interp, fieldPtr, &fields.iso8601Week)!=TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_DAYOFWEEK],
-		&fieldPtr) != TCL_OK
-	    || TclGetIntFromObj(interp, fieldPtr, &fields.dayOfWeek) != TCL_OK
+    if (FetchEraField(interp, dict, literals[LIT_ERA], &era) != TCL_OK
+	    || FetchIntField(interp, dict, literals[LIT_ISO8601YEAR],
+		&fields.iso8601Year) != TCL_OK
+	    || FetchIntField(interp, dict, literals[LIT_ISO8601WEEK],
+		&fields.iso8601Week) != TCL_OK
+	    || FetchIntField(interp, dict, literals[LIT_DAYOFWEEK],
+		&fields.dayOfWeek) != TCL_OK
 	    || TclGetIntFromObj(interp, objv[2], &changeover) != TCL_OK) {
 	return TCL_ERROR;
     }
@@ -1697,7 +1725,7 @@ ClockClicksObjCmd(
     case 1:
 	break;
     case 2:
-	if (Tcl_GetIndexFromObj(interp, objv[1], clicksSwitches, "switch", 0,
+	if (Tcl_GetIndexFromObj(interp, objv[1], clicksSwitches, "option", 0,
 		&index) != TCL_OK) {
 	    return TCL_ERROR;
 	}
@@ -1867,9 +1895,9 @@ ClockParseformatargsObjCmd(
     localeObj = litPtr[LIT_C];
     timezoneObj = litPtr[LIT__NIL];
     for (i = 2; i < objc; i+=2) {
-	if (Tcl_GetIndexFromObj(interp, objv[i], options, "switch", 0,
+	if (Tcl_GetIndexFromObj(interp, objv[i], options, "option", 0,
 		&optionIndex) != TCL_OK) {
-	    Tcl_SetErrorCode(interp, "CLOCK", "badSwitch",
+	    Tcl_SetErrorCode(interp, "CLOCK", "badOption",
 		    Tcl_GetString(objv[i]), NULL);
 	    return TCL_ERROR;
 	}
diff --git a/generic/tclCmdAH.c b/generic/tclCmdAH.c
index 5ca5cf8..d90a747 100644
--- a/generic/tclCmdAH.c
+++ b/generic/tclCmdAH.c
@@ -32,6 +32,9 @@ struct ForeachState {
     int *argcList;		/* Array of value list sizes. */
     Tcl_Obj ***argvList;	/* Array of value lists. */
     Tcl_Obj **aCopyList;	/* Copies of value list arguments. */
+    Tcl_Obj *resultList;	/* List of result values from the loop body,
+				 * or NULL if we're not collecting them
+				 * ([lmap] vs [foreach]). */
 };
 
 /*
@@ -52,6 +55,8 @@ static int		GetStatBuf(Tcl_Interp *interp, Tcl_Obj *pathPtr,
 static const char *	GetTypeFromMode(int mode);
 static int		StoreStatData(Tcl_Interp *interp, Tcl_Obj *varName,
 			    Tcl_StatBuf *statPtr);
+static inline int	EachloopCmd(Tcl_Interp *interp, int collect,
+			    int objc, Tcl_Obj *const objv[]);
 static Tcl_NRPostProc	CatchObjCmdCallback;
 static Tcl_NRPostProc	ExprCallback;
 static Tcl_NRPostProc	ForSetupCallback;
@@ -189,8 +194,7 @@ Tcl_CaseObjCmd(
     for (i = 0;  i < caseObjc;  i += 2) {
 	int patObjc, j;
 	const char **patObjv;
-	const char *pat;
-	unsigned char *p;
+	const char *pat, *p;
 
 	if (i == caseObjc-1) {
 	    Tcl_ResetResult(interp);
@@ -205,8 +209,8 @@ Tcl_CaseObjCmd(
 	 */
 
 	pat = TclGetString(caseObjv[i]);
-	for (p = (unsigned char *) pat; *p != '\0'; p++) {
-	    if (isspace(*p) || (*p == '\\')) {	/* INTL: ISO space, UCHAR */
+	for (p = pat; *p != '\0'; p++) {
+	    if (TclIsSpaceProc(*p) || (*p == '\\')) {
 		break;
 	    }
 	}
@@ -356,7 +360,8 @@ CatchObjCmdCallback(
 
 	if (NULL == Tcl_ObjSetVar2(interp, optionVarNamePtr, NULL,
 		options, TCL_LEAVE_ERR_MSG)) {
-	    Tcl_DecrRefCount(options);
+	    /* Do not decrRefCount 'options', it was already done by
+	     * Tcl_ObjSetVar2 */
 	    return TCL_ERROR;
 	}
     }
@@ -944,40 +949,40 @@ TclInitFileCmd(
      */
 
     static const EnsembleImplMap initMap[] = {
-	{"atime",	FileAttrAccessTimeCmd, NULL, NULL, NULL, 0},
-	{"attributes",	TclFileAttrsCmd, NULL, NULL, NULL, 0},
-	{"channels",	TclChannelNamesCmd, NULL, NULL, NULL, 0},
-	{"copy",	TclFileCopyCmd, NULL, NULL, NULL, 0},
-	{"delete",	TclFileDeleteCmd, NULL, NULL, NULL, 0},
-	{"dirname",	PathDirNameCmd, NULL, NULL, NULL, 0},
-	{"executable",	FileAttrIsExecutableCmd, NULL, NULL, NULL, 0},
-	{"exists",	FileAttrIsExistingCmd, NULL, NULL, NULL, 0},
-	{"extension",	PathExtensionCmd, NULL, NULL, NULL, 0},
-	{"isdirectory",	FileAttrIsDirectoryCmd, NULL, NULL, NULL, 0},
-	{"isfile",	FileAttrIsFileCmd, NULL, NULL, NULL, 0},
-	{"join",	PathJoinCmd, NULL, NULL, NULL, 0},
-	{"link",	TclFileLinkCmd, NULL, NULL, NULL, 0},
-	{"lstat",	FileAttrLinkStatCmd, NULL, NULL, NULL, 0},
-	{"mtime",	FileAttrModifyTimeCmd, NULL, NULL, NULL, 0},
-	{"mkdir",	TclFileMakeDirsCmd, NULL, NULL, NULL, 0},
-	{"nativename",	PathNativeNameCmd, NULL, NULL, NULL, 0},
-	{"normalize",	PathNormalizeCmd, NULL, NULL, NULL, 0},
-	{"owned",	FileAttrIsOwnedCmd, NULL, NULL, NULL, 0},
-	{"pathtype",	PathTypeCmd, NULL, NULL, NULL, 0},
-	{"readable",	FileAttrIsReadableCmd, NULL, NULL, NULL, 0},
-	{"readlink",	TclFileReadLinkCmd, NULL, NULL, NULL, 0},
-	{"rename",	TclFileRenameCmd, NULL, NULL, NULL, 0},
-	{"rootname",	PathRootNameCmd, NULL, NULL, NULL, 0},
-	{"separator",	FilesystemSeparatorCmd, NULL, NULL, NULL, 0},
-	{"size",	FileAttrSizeCmd, NULL, NULL, NULL, 0},
-	{"split",	PathSplitCmd, NULL, NULL, NULL, 0},
-	{"stat",	FileAttrStatCmd, NULL, NULL, NULL, 0},
-	{"system",	PathFilesystemCmd, NULL, NULL, NULL, 0},
-	{"tail",	PathTailCmd, NULL, NULL, NULL, 0},
-	{"tempfile",	TclFileTemporaryCmd, NULL, NULL, NULL, 0},
-	{"type",	FileAttrTypeCmd, NULL, NULL, NULL, 0},
-	{"volumes",	FilesystemVolumesCmd, NULL, NULL, NULL, 0},
-	{"writable",	FileAttrIsWritableCmd, NULL, NULL, NULL, 0},
+	{"atime",	FileAttrAccessTimeCmd,	TclCompileBasic1Or2ArgCmd, NULL, NULL, 0},
+	{"attributes",	TclFileAttrsCmd,	NULL, NULL, NULL, 0},
+	{"channels",	TclChannelNamesCmd,	TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+	{"copy",	TclFileCopyCmd,		NULL, NULL, NULL, 0},
+	{"delete",	TclFileDeleteCmd,	TclCompileBasicMin0ArgCmd, NULL, NULL, 0},
+	{"dirname",	PathDirNameCmd,		TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"executable",	FileAttrIsExecutableCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"exists",	FileAttrIsExistingCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"extension",	PathExtensionCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"isdirectory",	FileAttrIsDirectoryCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"isfile",	FileAttrIsFileCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"join",	PathJoinCmd,		TclCompileBasicMin1ArgCmd, NULL, NULL, 0},
+	{"link",	TclFileLinkCmd,		TclCompileBasic1To3ArgCmd, NULL, NULL, 0},
+	{"lstat",	FileAttrLinkStatCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+	{"mtime",	FileAttrModifyTimeCmd,	TclCompileBasic1Or2ArgCmd, NULL, NULL, 0},
+	{"mkdir",	TclFileMakeDirsCmd,	TclCompileBasicMin0ArgCmd, NULL, NULL, 0},
+	{"nativename",	PathNativeNameCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"normalize",	PathNormalizeCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"owned",	FileAttrIsOwnedCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"pathtype",	PathTypeCmd,		TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"readable",	FileAttrIsReadableCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"readlink",	TclFileReadLinkCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"rename",	TclFileRenameCmd,	NULL, NULL, NULL, 0},
+	{"rootname",	PathRootNameCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"separator",	FilesystemSeparatorCmd,	TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+	{"size",	FileAttrSizeCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"split",	PathSplitCmd,		TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"stat",	FileAttrStatCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+	{"system",	PathFilesystemCmd,	TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+	{"tail",	PathTailCmd,		TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"tempfile",	TclFileTemporaryCmd,	TclCompileBasic0To2ArgCmd, NULL, NULL, 0},
+	{"type",	FileAttrTypeCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"volumes",	FilesystemVolumesCmd,	TclCompileBasic0ArgCmd, NULL, NULL, 0},
+	{"writable",	FileAttrIsWritableCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
 	{NULL, NULL, NULL, NULL, NULL, 0}
     };
     return TclMakeEnsemble(interp, "file", initMap);
@@ -1585,7 +1590,7 @@ FileAttrIsOwnedCmd(
 	 * test for equivalence to the current user.
 	 */
 
-#if defined(__WIN32__) || defined(__CYGWIN__)
+#if defined(_WIN32) || defined(__CYGWIN__)
 	value = 1;
 #else
 	value = (geteuid() == buf.st_uid);
@@ -2565,7 +2570,7 @@ ForPostNextCallback(
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_ForeachObjCmd, TclNRForeachCmd --
+ * Tcl_ForeachObjCmd, TclNRForeachCmd, EachloopCmd --
  *
  *	This object-based procedure is invoked to process the "foreach" Tcl
  *	command. See the user documentation for details on what it does.
@@ -2597,6 +2602,38 @@ TclNRForeachCmd(
     int objc,
     Tcl_Obj *const objv[])
 {
+    return EachloopCmd(interp, TCL_EACH_KEEP_NONE, objc, objv);
+}
+
+int
+Tcl_LmapObjCmd(
+    ClientData dummy,		/* Not used. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    return Tcl_NRCallObjProc(interp, TclNRLmapCmd, dummy, objc, objv);
+}
+
+int
+TclNRLmapCmd(
+    ClientData dummy,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    return EachloopCmd(interp, TCL_EACH_COLLECT, objc, objv);
+}
+
+static inline int
+EachloopCmd(
+    Tcl_Interp *interp,		/* Our context for variables and script
+				 * evaluation. */
+    int collect,		/* Select collecting or accumulating mode
+				 * (TCL_EACH_*) */
+    int objc,			/* The arguments being passed in... */
+    Tcl_Obj *const objv[])
+{
     int numLists = (objc-2) / 2;
     register struct ForeachState *statePtr;
     int i, j, result;
@@ -2640,6 +2677,12 @@ TclNRForeachCmd(
     statePtr->bodyPtr = objv[objc - 1];
     statePtr->bodyIdx = objc - 1;
 
+    if (collect == TCL_EACH_COLLECT) {
+	statePtr->resultList = Tcl_NewListObj(0, NULL);
+    } else {
+	statePtr->resultList = NULL;
+    }
+
     /*
      * Break up the value lists and variable lists into elements.
      */
@@ -2653,9 +2696,11 @@ TclNRForeachCmd(
 	TclListObjGetElements(NULL, statePtr->vCopyList[i],
 		&statePtr->varcList[i], &statePtr->varvList[i]);
 	if (statePtr->varcList[i] < 1) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "foreach varlist is empty", -1));
-	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "FOREACH",
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "%s varlist is empty",
+		    (statePtr->resultList != NULL ? "lmap" : "foreach")));
+	    Tcl_SetErrorCode(interp, "TCL", "OPERATION",
+		    (statePtr->resultList != NULL ? "LMAP" : "FOREACH"),
 		    "NEEDVARS", NULL);
 	    result = TCL_ERROR;
 	    goto done;
@@ -2725,14 +2770,21 @@ ForeachLoopStep(
     switch (result) {
     case TCL_CONTINUE:
 	result = TCL_OK;
+	break;
     case TCL_OK:
+	if (statePtr->resultList != NULL) {
+	    Tcl_ListObjAppendElement(interp, statePtr->resultList,
+		    Tcl_GetObjResult(interp));
+	}
 	break;
     case TCL_BREAK:
 	result = TCL_OK;
-	goto done;
+	goto finish;
     case TCL_ERROR:
 	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
-		"\n    (\"foreach\" body line %d)", Tcl_GetErrorLine(interp)));
+		"\n    (\"%s\" body line %d)",
+		(statePtr->resultList != NULL ? "lmap" : "foreach"),
+		Tcl_GetErrorLine(interp)));
     default:
 	goto done;
     }
@@ -2757,7 +2809,14 @@ ForeachLoopStep(
      * We're done. Tidy up our work space and finish off.
      */
 
-    Tcl_ResetResult(interp);
+  finish:
+    if (statePtr->resultList == NULL) {
+	Tcl_ResetResult(interp);
+    } else {
+	Tcl_SetObjResult(interp, statePtr->resultList);
+	statePtr->resultList = NULL;	/* Don't clean it up */
+    }
+
   done:
     ForeachCleanup(interp, statePtr);
     return result;
@@ -2790,7 +2849,8 @@ ForeachAssignments(
 
 	    if (varValuePtr == NULL) {
 		Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
-			"\n    (setting foreach loop variable \"%s\")",
+			"\n    (setting %s loop variable \"%s\")",
+			(statePtr->resultList != NULL ? "lmap" : "foreach"),
 			TclGetString(statePtr->varvList[i][v])));
 		return TCL_ERROR;
 	    }
@@ -2819,6 +2879,9 @@ ForeachCleanup(
 	    TclDecrRefCount(statePtr->aCopyList[i]);
 	}
     }
+    if (statePtr->resultList != NULL) {
+	TclDecrRefCount(statePtr->resultList);
+    }
     TclStackFree(interp, statePtr);
 }
 
diff --git a/generic/tclCmdIL.c b/generic/tclCmdIL.c
index 14e0092..d723e4b 100644
--- a/generic/tclCmdIL.c
+++ b/generic/tclCmdIL.c
@@ -29,7 +29,7 @@
 typedef struct SortElement {
     union {			/* The value that we sorting by. */
 	const char *strValuePtr;
-	long intValue;
+	Tcl_WideInt wideValue;
 	double doubleValue;
 	Tcl_Obj *objValuePtr;
     } collationKey;
@@ -161,30 +161,30 @@ static Tcl_Obj *	SelectObjFromSublist(Tcl_Obj *firstPtr,
  */
 
 static const EnsembleImplMap defaultInfoMap[] = {
-    {"args",		   InfoArgsCmd,		    NULL, NULL, NULL, 0},
-    {"body",		   InfoBodyCmd,		    NULL, NULL, NULL, 0},
-    {"cmdcount",	   InfoCmdCountCmd,	    NULL, NULL, NULL, 0},
-    {"commands",	   InfoCommandsCmd,	    NULL, NULL, NULL, 0},
-    {"complete",	   InfoCompleteCmd,	    NULL, NULL, NULL, 0},
-    {"coroutine",	   TclInfoCoroutineCmd,     NULL, NULL, NULL, 0},
-    {"default",		   InfoDefaultCmd,	    NULL, NULL, NULL, 0},
-    {"errorstack",	   InfoErrorStackCmd,	    NULL, NULL, NULL, 0},
+    {"args",		   InfoArgsCmd,		    TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"body",		   InfoBodyCmd,		    TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"cmdcount",	   InfoCmdCountCmd,	    TclCompileBasic0ArgCmd, NULL, NULL, 0},
+    {"commands",	   InfoCommandsCmd,	    TclCompileInfoCommandsCmd, NULL, NULL, 0},
+    {"complete",	   InfoCompleteCmd,	    TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"coroutine",	   TclInfoCoroutineCmd,     TclCompileInfoCoroutineCmd, NULL, NULL, 0},
+    {"default",		   InfoDefaultCmd,	    TclCompileBasic3ArgCmd, NULL, NULL, 0},
+    {"errorstack",	   InfoErrorStackCmd,	    TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
     {"exists",		   TclInfoExistsCmd,	    TclCompileInfoExistsCmd, NULL, NULL, 0},
-    {"frame",		   InfoFrameCmd,	    NULL, NULL, NULL, 0},
-    {"functions",	   InfoFunctionsCmd,	    NULL, NULL, NULL, 0},
-    {"globals",		   TclInfoGlobalsCmd,	    NULL, NULL, NULL, 0},
-    {"hostname",	   InfoHostnameCmd,	    NULL, NULL, NULL, 0},
-    {"level",		   InfoLevelCmd,	    NULL, NULL, NULL, 0},
-    {"library",		   InfoLibraryCmd,	    NULL, NULL, NULL, 0},
-    {"loaded",		   InfoLoadedCmd,	    NULL, NULL, NULL, 0},
-    {"locals",		   TclInfoLocalsCmd,	    NULL, NULL, NULL, 0},
-    {"nameofexecutable",   InfoNameOfExecutableCmd, NULL, NULL, NULL, 0},
-    {"patchlevel",	   InfoPatchLevelCmd,	    NULL, NULL, NULL, 0},
-    {"procs",		   InfoProcsCmd,	    NULL, NULL, NULL, 0},
-    {"script",		   InfoScriptCmd,	    NULL, NULL, NULL, 0},
-    {"sharedlibextension", InfoSharedlibCmd,	    NULL, NULL, NULL, 0},
-    {"tclversion",	   InfoTclVersionCmd,	    NULL, NULL, NULL, 0},
-    {"vars",		   TclInfoVarsCmd,	    NULL, NULL, NULL, 0},
+    {"frame",		   InfoFrameCmd,	    TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"functions",	   InfoFunctionsCmd,	    TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"globals",		   TclInfoGlobalsCmd,	    TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"hostname",	   InfoHostnameCmd,	    TclCompileBasic0ArgCmd, NULL, NULL, 0},
+    {"level",		   InfoLevelCmd,	    TclCompileInfoLevelCmd, NULL, NULL, 0},
+    {"library",		   InfoLibraryCmd,	    TclCompileBasic0ArgCmd, NULL, NULL, 0},
+    {"loaded",		   InfoLoadedCmd,	    TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"locals",		   TclInfoLocalsCmd,	    TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"nameofexecutable",   InfoNameOfExecutableCmd, TclCompileBasic0ArgCmd, NULL, NULL, 0},
+    {"patchlevel",	   InfoPatchLevelCmd,	    TclCompileBasic0ArgCmd, NULL, NULL, 0},
+    {"procs",		   InfoProcsCmd,	    TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"script",		   InfoScriptCmd,	    TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"sharedlibextension", InfoSharedlibCmd,	    TclCompileBasic0ArgCmd, NULL, NULL, 0},
+    {"tclversion",	   InfoTclVersionCmd,	    TclCompileBasic0ArgCmd, NULL, NULL, 0},
+    {"vars",		   TclInfoVarsCmd,	    TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
     {NULL, NULL, NULL, NULL, NULL, 0}
 };
 
@@ -1147,41 +1147,38 @@ InfoFrameCmd(
     Tcl_Obj *const objv[])	/* Argument objects. */
 {
     Interp *iPtr = (Interp *) interp;
-    int level, topLevel, code = TCL_OK;
-    CmdFrame *runPtr, *framePtr;
+    int level, code = TCL_OK;
+    CmdFrame *framePtr, **cmdFramePtrPtr = &iPtr->cmdFramePtr;
     CoroutineData *corPtr = iPtr->execEnvPtr->corPtr;
+    int topLevel = 0;
 
     if (objc > 2) {
 	Tcl_WrongNumArgs(interp, 1, objv, "?number?");
 	return TCL_ERROR;
     }
 
-    topLevel = ((iPtr->cmdFramePtr == NULL)
-	    ? 0
-	    : iPtr->cmdFramePtr->level);
-
-    if (corPtr) {
-	/*
-	 * A coroutine: must fix the level computations AND the cmdFrame chain,
-	 * which is interrupted at the base.
-	 */
-
-	CmdFrame *lastPtr = NULL;
-
-	runPtr = iPtr->cmdFramePtr;
+    while (corPtr) {
+	while (*cmdFramePtrPtr) {
+	    topLevel++;
+	    cmdFramePtrPtr = &((*cmdFramePtrPtr)->nextPtr);
+	}
+	if (corPtr->caller.cmdFramePtr) {
+	    *cmdFramePtrPtr = corPtr->caller.cmdFramePtr;
+	}
+	corPtr = corPtr->callerEEPtr->corPtr;
+    }
+    topLevel += (*cmdFramePtrPtr)->level;
 
-	/* TODO - deal with overflow */
-	topLevel += corPtr->caller.cmdFramePtr->level;
-	while (runPtr) {
-	    runPtr->level += corPtr->caller.cmdFramePtr->level;
-	    lastPtr = runPtr;
-	    runPtr = runPtr->nextPtr;
+    if (topLevel != iPtr->cmdFramePtr->level) {
+	framePtr = iPtr->cmdFramePtr;
+	while (framePtr) {
+	    framePtr->level = topLevel--;
+	    framePtr = framePtr->nextPtr;
 	}
-	if (lastPtr) {
-	    lastPtr->nextPtr = corPtr->caller.cmdFramePtr;
-	} else {
-	    iPtr->cmdFramePtr = corPtr->caller.cmdFramePtr;
+	if (topLevel) {
+	    Tcl_Panic("Broken frame level calculation");
 	}
+	topLevel = iPtr->cmdFramePtr->level;
     }
 
     if (objc == 1) {
@@ -1231,20 +1228,27 @@ InfoFrameCmd(
     Tcl_SetObjResult(interp, TclInfoFrame(interp, framePtr));
 
   done:
-    if (corPtr) {
+    cmdFramePtrPtr = &iPtr->cmdFramePtr;
+    corPtr = iPtr->execEnvPtr->corPtr;
+    while (corPtr) {
+	CmdFrame *endPtr = corPtr->caller.cmdFramePtr;
+
+	if (endPtr) {
+	    if (*cmdFramePtrPtr == endPtr) {
+		*cmdFramePtrPtr = NULL;
+	    } else {
+		CmdFrame *runPtr = *cmdFramePtrPtr;
 
-	if (iPtr->cmdFramePtr == corPtr->caller.cmdFramePtr) {
-	    iPtr->cmdFramePtr = NULL;
-	} else {
-	    runPtr = iPtr->cmdFramePtr;
-	    while (runPtr->nextPtr != corPtr->caller.cmdFramePtr) {
-	    	runPtr->level -= corPtr->caller.cmdFramePtr->level;
-		runPtr = runPtr->nextPtr;
+		while (runPtr->nextPtr != endPtr) {
+		    runPtr->level -= endPtr->level;
+		    runPtr = runPtr->nextPtr;
+		}
+		runPtr->level = 1;
+		runPtr->nextPtr = NULL;
 	    }
-	    runPtr->level = 1;
-	    runPtr->nextPtr = NULL;
+	    cmdFramePtrPtr = &corPtr->caller.cmdFramePtr;
 	}
-
+	corPtr = corPtr->callerEEPtr->corPtr;
     }
     return code;
 }
@@ -1283,6 +1287,7 @@ TclInfoFrame(
 	"eval", "eval", "eval", "precompiled", "source", "proc"
     };
     Proc *procPtr = framePtr->framePtr ? framePtr->framePtr->procPtr : NULL;
+    int needsFree = -1;
 
     /*
      * Pull the information and construct the dictionary to return, as list.
@@ -1302,28 +1307,12 @@ TclInfoFrame(
 	 */
 
 	ADD_PAIR("type", Tcl_NewStringObj(typeString[framePtr->type], -1));
-	ADD_PAIR("line", Tcl_NewIntObj(framePtr->line[0]));
-	ADD_PAIR("cmd", Tcl_NewStringObj(framePtr->cmd.str.cmd,
-		framePtr->cmd.str.len));
-	break;
-
-    case TCL_LOCATION_EVAL_LIST:
-	/*
-	 * List optimized evaluation. Type, line, cmd, the latter through
-	 * listPtr, possibly a frame.
-	 */
-
-	ADD_PAIR("type", Tcl_NewStringObj(typeString[framePtr->type], -1));
-	ADD_PAIR("line", Tcl_NewIntObj(1));
-
-	/*
-	 * We put a duplicate of the command list obj into the result to
-	 * ensure that the 'pure List'-property of the command itself is not
-	 * destroyed. Otherwise the query here would disable the list
-	 * optimization path in Tcl_EvalObjEx.
-	 */
-
-	ADD_PAIR("cmd", Tcl_DuplicateObj(framePtr->cmd.listPtr));
+	if (framePtr->line) {
+	    ADD_PAIR("line", Tcl_NewIntObj(framePtr->line[0]));
+	} else {
+	    ADD_PAIR("line", Tcl_NewIntObj(1));
+	}
+	ADD_PAIR("cmd", TclGetSourceFromFrame(framePtr, 0, NULL));
 	break;
 
     case TCL_LOCATION_PREBC:
@@ -1371,8 +1360,10 @@ TclInfoFrame(
 	    Tcl_DecrRefCount(fPtr->data.eval.path);
 	}
 
-	ADD_PAIR("cmd",
-		Tcl_NewStringObj(fPtr->cmd.str.cmd, fPtr->cmd.str.len));
+	ADD_PAIR("cmd", TclGetSourceFromFrame(fPtr, 0, NULL));
+	if (fPtr->cmdObj && framePtr->cmdObj == NULL) {
+	    needsFree = lc - 1;
+	}
 	TclStackFree(interp, fPtr);
 	break;
     }
@@ -1391,8 +1382,7 @@ TclInfoFrame(
 	 * the result list object.
 	 */
 
-	ADD_PAIR("cmd", Tcl_NewStringObj(framePtr->cmd.str.cmd,
-		framePtr->cmd.str.len));
+	ADD_PAIR("cmd", TclGetSourceFromFrame(framePtr, 0, NULL));
 	break;
 
     case TCL_LOCATION_PROC:
@@ -1461,7 +1451,11 @@ TclInfoFrame(
 	}
     }
 
-    return Tcl_NewListObj(lc, lv);
+    tmpObj = Tcl_NewListObj(lc, lv);
+    if (needsFree >= 0) {
+	Tcl_DecrRefCount(lv[needsFree]);
+    }
+    return tmpObj;
 }
 
 /*
@@ -1492,19 +1486,42 @@ InfoFunctionsCmd(
     int objc,			/* Number of arguments. */
     Tcl_Obj *const objv[])	/* Argument objects. */
 {
-    const char *pattern;
+    Tcl_Obj *script;
+    int code;
 
-    if (objc == 1) {
-	pattern = NULL;
-    } else if (objc == 2) {
-	pattern = TclGetString(objv[1]);
-    } else {
+    if (objc > 2) {
 	Tcl_WrongNumArgs(interp, 1, objv, "?pattern?");
 	return TCL_ERROR;
     }
 
-    Tcl_SetObjResult(interp, Tcl_ListMathFuncs(interp, pattern));
-    return TCL_OK;
+    script = Tcl_NewStringObj(
+"	    ::apply [::list {{pattern *}} {\n"
+"		::set cmds {}\n"
+"		::foreach cmd [::info commands ::tcl::mathfunc::$pattern] {\n"
+"		    ::lappend cmds [::namespace tail $cmd]\n"
+"		}\n"
+"		::foreach cmd [::info commands tcl::mathfunc::$pattern] {\n"
+"		    ::set cmd [::namespace tail $cmd]\n"
+"		    ::if {$cmd ni $cmds} {\n"
+"			::lappend cmds $cmd\n"
+"		    }\n"
+"		}\n"
+"		::return $cmds\n"
+"	    } [::namespace current]] ", -1);
+
+    if (objc == 2) {
+	Tcl_Obj *arg = Tcl_NewListObj(1, &(objv[1]));
+
+	Tcl_AppendObjToObj(script, arg);
+	Tcl_DecrRefCount(arg);
+    }
+
+    Tcl_IncrRefCount(script);
+    code = Tcl_EvalObjEx(interp, script, 0);
+
+    Tcl_DecrRefCount(script);
+
+    return code;
 }
 
 /*
@@ -2646,7 +2663,7 @@ Tcl_LrepeatObjCmd(
      * number of times.
      */
 
-    CLANG_ASSERT(dataArray);
+    CLANG_ASSERT(dataArray || totalElems == 0 );
     if (objc == 1) {
 	register Tcl_Obj *tmpPtr = objv[0];
 
@@ -2884,7 +2901,8 @@ Tcl_LsearchObjCmd(
 {
     const char *bytes, *patternBytes;
     int i, match, index, result, listc, length, elemLen, bisect;
-    int dataType, isIncreasing, lower, upper, patInt, objInt, offset;
+    int dataType, isIncreasing, lower, upper, offset;
+    Tcl_WideInt patWide, objWide;
     int allMatches, inlineReturn, negatedMatch, returnSubindices, noCase;
     double patDouble, objDouble;
     SortInfo sortInfo;
@@ -2982,7 +3000,7 @@ Tcl_LsearchObjCmd(
 	    dataType = INTEGER;
 	    break;
 	case LSEARCH_NOCASE:		/* -nocase */
-	    strCmpFn = strcasecmp;
+	    strCmpFn = TclUtfCasecmp;
 	    noCase = 1;
 	    break;
 	case LSEARCH_NOT:		/* -not */
@@ -3203,7 +3221,7 @@ Tcl_LsearchObjCmd(
 	    patternBytes = TclGetStringFromObj(patObj, &length);
 	    break;
 	case INTEGER:
-	    result = TclGetIntFromObj(interp, patObj, &patInt);
+	    result = TclGetWideIntFromObj(interp, patObj, &patWide);
 	    if (result != TCL_OK) {
 		goto done;
 	    }
@@ -3272,13 +3290,13 @@ Tcl_LsearchObjCmd(
 		match = DictionaryCompare(patternBytes, bytes);
 		break;
 	    case INTEGER:
-		result = TclGetIntFromObj(interp, itemPtr, &objInt);
+		result = TclGetWideIntFromObj(interp, itemPtr, &objWide);
 		if (result != TCL_OK) {
 		    goto done;
 		}
-		if (patInt == objInt) {
+		if (patWide == objWide) {
 		    match = 0;
-		} else if (patInt < objInt) {
+		} else if (patWide < objWide) {
 		    match = -1;
 		} else {
 		    match = 1;
@@ -3377,7 +3395,7 @@ Tcl_LsearchObjCmd(
 			 */
 
 			if (noCase) {
-			    match = (strcasecmp(bytes, patternBytes) == 0);
+			    match = (TclUtfCasecmp(bytes, patternBytes) == 0);
 			} else {
 			    match = (memcmp(bytes, patternBytes,
 				    (size_t) length) == 0);
@@ -3391,14 +3409,14 @@ Tcl_LsearchObjCmd(
 		    break;
 
 		case INTEGER:
-		    result = TclGetIntFromObj(interp, itemPtr, &objInt);
+		    result = TclGetWideIntFromObj(interp, itemPtr, &objWide);
 		    if (result != TCL_OK) {
 			if (listPtr != NULL) {
 			    Tcl_DecrRefCount(listPtr);
 			}
 			goto done;
 		    }
-		    match = (objInt == patInt);
+		    match = (objWide == patWide);
 		    break;
 
 		case REAL:
@@ -3622,7 +3640,8 @@ Tcl_LsortObjCmd(
     int objc,			/* Number of arguments. */
     Tcl_Obj *const objv[])	/* Argument values. */
 {
-    int i, j, index, indices, length, nocase = 0, sortMode, indexc;
+    int i, j, index, indices, length, nocase = 0, indexc;
+    int sortMode = SORTMODE_ASCII;
     int group, groupSize, groupOffset, idx, allocatedIndexVector = 0;
     Tcl_Obj *resultPtr, *cmdPtr, **listObjPtrs, *listObj, *indexPtr;
     SortElement *elementArray, *elementPtr;
@@ -3961,14 +3980,14 @@ Tcl_LsortObjCmd(
 	if (sortMode == SORTMODE_ASCII) {
 	    elementArray[i].collationKey.strValuePtr = TclGetString(indexPtr);
 	} else if (sortMode == SORTMODE_INTEGER) {
-	    long a;
+	    Tcl_WideInt a;
 
-	    if (TclGetLongFromObj(sortInfo.interp, indexPtr, &a) != TCL_OK) {
+	    if (TclGetWideIntFromObj(sortInfo.interp, indexPtr, &a) != TCL_OK) {
 		sortInfo.resultCode = TCL_ERROR;
 		goto done1;
 	    }
-	    elementArray[i].collationKey.intValue = a;
-	} else if (sortInfo.sortMode == SORTMODE_REAL) {
+	    elementArray[i].collationKey.wideValue = a;
+	} else if (sortMode == SORTMODE_REAL) {
 	    double a;
 
 	    if (Tcl_GetDoubleFromObj(sortInfo.interp, indexPtr,
@@ -4065,7 +4084,7 @@ Tcl_LsortObjCmd(
     TclStackFree(interp, elementArray);
 
   done:
-    if (sortInfo.sortMode == SORTMODE_COMMAND) {
+    if (sortMode == SORTMODE_COMMAND) {
 	TclDecrRefCount(sortInfo.compareCmdPtr);
 	TclDecrRefCount(listObj);
 	sortInfo.compareCmdPtr = NULL;
@@ -4210,16 +4229,16 @@ SortCompare(
 	order = strcmp(elemPtr1->collationKey.strValuePtr,
 		elemPtr2->collationKey.strValuePtr);
     } else if (infoPtr->sortMode == SORTMODE_ASCII_NC) {
-	order = strcasecmp(elemPtr1->collationKey.strValuePtr,
+	order = TclUtfCasecmp(elemPtr1->collationKey.strValuePtr,
 		elemPtr2->collationKey.strValuePtr);
     } else if (infoPtr->sortMode == SORTMODE_DICTIONARY) {
 	order = DictionaryCompare(elemPtr1->collationKey.strValuePtr,
 		elemPtr2->collationKey.strValuePtr);
     } else if (infoPtr->sortMode == SORTMODE_INTEGER) {
-	long a, b;
+	Tcl_WideInt a, b;
 
-	a = elemPtr1->collationKey.intValue;
-	b = elemPtr2->collationKey.intValue;
+	a = elemPtr1->collationKey.wideValue;
+	b = elemPtr2->collationKey.wideValue;
 	order = ((a >= b) - (a <= b));
     } else if (infoPtr->sortMode == SORTMODE_REAL) {
 	double a, b;
diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c
index 9e720ea..841002f 100644
--- a/generic/tclCmdMZ.c
+++ b/generic/tclCmdMZ.c
@@ -18,6 +18,7 @@
 
 #include "tclInt.h"
 #include "tclRegexp.h"
+#include "tclStringTrim.h"
 
 static inline Tcl_Obj *	During(Tcl_Interp *interp, int resultCode,
 			    Tcl_Obj *oldOptions, Tcl_Obj *errorInfo);
@@ -34,12 +35,36 @@ static int		UniCharIsHexDigit(int character);
 
 /*
  * Default set of characters to trim in [string trim] and friends. This is a
- * UTF-8 literal string containing space, tab, newline, carriage return,
- * ethiopic wordspace (U+1361), ogham space mark (U+1680), and ideographic
- * space (U+3000). [TIP #318]
+ * UTF-8 literal string containing all Unicode space characters [TIP #413]
  */
 
-#define DEFAULT_TRIM_SET " \t\n\r\xe1\x8d\xa1\xe1\x9a\x80\xe3\x80\x80"
+const char tclDefaultTrimSet[] = 
+	"\x09\x0a\x0b\x0c\x0d " /* ASCII */
+	"\xc0\x80" /*     nul (U+0000) */
+	"\xc2\x85" /*     next line (U+0085) */
+	"\xc2\xa0" /*     non-breaking space (U+00a0) */
+	"\xe1\x9a\x80" /* ogham space mark (U+1680) */
+	"\xe1\xa0\x8e" /* mongolian vowel separator (U+180e) */
+	"\xe2\x80\x80" /* en quad (U+2000) */
+	"\xe2\x80\x81" /* em quad (U+2001) */
+	"\xe2\x80\x82" /* en space (U+2002) */
+	"\xe2\x80\x83" /* em space (U+2003) */
+	"\xe2\x80\x84" /* three-per-em space (U+2004) */
+	"\xe2\x80\x85" /* four-per-em space (U+2005) */
+	"\xe2\x80\x86" /* six-per-em space (U+2006) */
+	"\xe2\x80\x87" /* figure space (U+2007) */
+	"\xe2\x80\x88" /* punctuation space (U+2008) */
+	"\xe2\x80\x89" /* thin space (U+2009) */
+	"\xe2\x80\x8a" /* hair space (U+200a) */
+	"\xe2\x80\x8b" /* zero width space (U+200b) */
+	"\xe2\x80\xa8" /* line separator (U+2028) */
+	"\xe2\x80\xa9" /* paragraph separator (U+2029) */
+	"\xe2\x80\xaf" /* narrow no-break space (U+202f) */
+	"\xe2\x81\x9f" /* medium mathematical space (U+205f) */
+	"\xe2\x81\xa0" /* word joiner (U+2060) */
+	"\xe3\x80\x80" /* ideographic space (U+3000) */
+	"\xef\xbb\xbf" /* zero width no-break space (U+feff) */
+;
 
 /*
  *----------------------------------------------------------------------
@@ -136,7 +161,7 @@ Tcl_RegexpObjCmd(
 	if (name[0] != '-') {
 	    break;
 	}
-	if (Tcl_GetIndexFromObj(interp, objv[i], options, "switch", TCL_EXACT,
+	if (Tcl_GetIndexFromObj(interp, objv[i], options, "option", TCL_EXACT,
 		&index) != TCL_OK) {
 	    goto optionError;
 	}
@@ -192,7 +217,7 @@ Tcl_RegexpObjCmd(
   endOfForLoop:
     if ((objc - i) < (2 - about)) {
 	Tcl_WrongNumArgs(interp, 1, objv,
-	    "?-switch ...? exp string ?matchVar? ?subMatchVar ...?");
+		"?-option ...? exp string ?matchVar? ?subMatchVar ...?");
 	goto optionError;
     }
     objc -= i;
@@ -206,6 +231,8 @@ Tcl_RegexpObjCmd(
     if (doinline && ((objc - 2) != 0)) {
 	Tcl_SetObjResult(interp, Tcl_NewStringObj(
 		"regexp match variables not allowed when using -inline", -1));
+	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "REGEXP",
+		"MIX_VAR_INLINE", NULL);
 	goto optionError;
     }
 
@@ -494,7 +521,7 @@ Tcl_RegsubObjCmd(
 	if (name[0] != '-') {
 	    break;
 	}
-	if (Tcl_GetIndexFromObj(interp, objv[idx], options, "switch",
+	if (Tcl_GetIndexFromObj(interp, objv[idx], options, "option",
 		TCL_EXACT, &index) != TCL_OK) {
 	    goto optionError;
 	}
@@ -541,7 +568,7 @@ Tcl_RegsubObjCmd(
   endOfForLoop:
     if (objc-idx < 3 || objc-idx > 4) {
 	Tcl_WrongNumArgs(interp, 1, objv,
-		"?-switch ...? exp string subSpec ?varName?");
+		"?-option ...? exp string subSpec ?varName?");
     optionError:
 	if (startIndex) {
 	    Tcl_DecrRefCount(startIndex);
@@ -1517,7 +1544,8 @@ StringIsCmd(
     case STR_IS_BOOL:
     case STR_IS_TRUE:
     case STR_IS_FALSE:
-	if (TCL_OK != Tcl_ConvertToType(NULL, objPtr, &tclBooleanType)) {
+	if ((objPtr->typePtr != &tclBooleanType)
+		&& (TCL_OK != TclSetBooleanFromAny(NULL, objPtr))) {
 	    if (strict) {
 		result = 0;
 	    } else {
@@ -1541,7 +1569,7 @@ StringIsCmd(
 	/* TODO */
 	if ((objPtr->typePtr == &tclDoubleType) ||
 		(objPtr->typePtr == &tclIntType) ||
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 		(objPtr->typePtr == &tclWideIntType) ||
 #endif
 		(objPtr->typePtr == &tclBignumType)) {
@@ -1578,7 +1606,7 @@ StringIsCmd(
 	goto failedIntParse;
     case STR_IS_ENTIER:
 	if ((objPtr->typePtr == &tclIntType) ||
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 		(objPtr->typePtr == &tclWideIntType) ||
 #endif
 		(objPtr->typePtr == &tclBignumType)) {
@@ -2810,6 +2838,59 @@ StringCmpCmd(
 /*
  *----------------------------------------------------------------------
  *
+ * StringCatCmd --
+ *
+ *	This procedure is invoked to process the "string cat" Tcl command.
+ *	See the user documentation for details on what it does.
+ *
+ * Results:
+ *	A standard Tcl result.
+ *
+ * Side effects:
+ *	See the user documentation.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+StringCatCmd(
+    ClientData dummy,		/* Not used. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    int i;
+    Tcl_Obj *objResultPtr;
+
+    if (objc < 2) {
+	/*
+	 * If there are no args, the result is an empty object.
+	 * Just leave the preset empty interp result.
+	 */
+	return TCL_OK;
+    }
+    if (objc == 2) {
+	/*
+	 * Other trivial case, single arg, just return it.
+	 */
+	Tcl_SetObjResult(interp, objv[1]);
+	return TCL_OK;
+    }
+    objResultPtr = objv[1];
+    if (Tcl_IsShared(objResultPtr)) {
+	objResultPtr = Tcl_DuplicateObj(objResultPtr);
+    }
+    for(i = 2;i < objc;i++) {
+	Tcl_AppendObjToObj(objResultPtr, objv[i]);
+    }
+    Tcl_SetObjResult(interp, objResultPtr);
+    
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * StringBytesCmd --
  *
  *	This procedure is invoked to process the "string bytelength" Tcl
@@ -3165,8 +3246,8 @@ StringTrimCmd(
     if (objc == 3) {
 	string2 = TclGetStringFromObj(objv[2], &length2);
     } else if (objc == 2) {
-	string2 = DEFAULT_TRIM_SET;
-	length2 = strlen(DEFAULT_TRIM_SET);
+	string2 = tclDefaultTrimSet;
+	length2 = strlen(tclDefaultTrimSet);
     } else {
 	Tcl_WrongNumArgs(interp, 1, objv, "string ?chars?");
 	return TCL_ERROR;
@@ -3213,8 +3294,8 @@ StringTrimLCmd(
     if (objc == 3) {
 	string2 = TclGetStringFromObj(objv[2], &length2);
     } else if (objc == 2) {
-	string2 = DEFAULT_TRIM_SET;
-	length2 = strlen(DEFAULT_TRIM_SET);
+	string2 = tclDefaultTrimSet;
+	length2 = strlen(tclDefaultTrimSet);
     } else {
 	Tcl_WrongNumArgs(interp, 1, objv, "string ?chars?");
 	return TCL_ERROR;
@@ -3259,8 +3340,8 @@ StringTrimRCmd(
     if (objc == 3) {
 	string2 = TclGetStringFromObj(objv[2], &length2);
     } else if (objc == 2) {
-	string2 = DEFAULT_TRIM_SET;
-	length2 = strlen(DEFAULT_TRIM_SET);
+	string2 = tclDefaultTrimSet;
+	length2 = strlen(tclDefaultTrimSet);
     } else {
 	Tcl_WrongNumArgs(interp, 1, objv, "string ?chars?");
 	return TCL_ERROR;
@@ -3301,28 +3382,29 @@ TclInitStringCmd(
     Tcl_Interp *interp)		/* Current interpreter. */
 {
     static const EnsembleImplMap stringImplMap[] = {
-	{"bytelength",	StringBytesCmd,	NULL, NULL, NULL, 0},
+	{"bytelength",	StringBytesCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"cat",		StringCatCmd,	TclCompileStringCatCmd, NULL, NULL, 0},
 	{"compare",	StringCmpCmd,	TclCompileStringCmpCmd, NULL, NULL, 0},
 	{"equal",	StringEqualCmd,	TclCompileStringEqualCmd, NULL, NULL, 0},
-	{"first",	StringFirstCmd,	NULL, NULL, NULL, 0},
+	{"first",	StringFirstCmd,	TclCompileStringFirstCmd, NULL, NULL, 0},
 	{"index",	StringIndexCmd,	TclCompileStringIndexCmd, NULL, NULL, 0},
-	{"is",		StringIsCmd,	NULL, NULL, NULL, 0},
-	{"last",	StringLastCmd,	NULL, NULL, NULL, 0},
+	{"is",		StringIsCmd,	TclCompileStringIsCmd, NULL, NULL, 0},
+	{"last",	StringLastCmd,	TclCompileStringLastCmd, NULL, NULL, 0},
 	{"length",	StringLenCmd,	TclCompileStringLenCmd, NULL, NULL, 0},
-	{"map",		StringMapCmd,	NULL, NULL, NULL, 0},
+	{"map",		StringMapCmd,	TclCompileStringMapCmd, NULL, NULL, 0},
 	{"match",	StringMatchCmd,	TclCompileStringMatchCmd, NULL, NULL, 0},
-	{"range",	StringRangeCmd,	NULL, NULL, NULL, 0},
-	{"repeat",	StringReptCmd,	NULL, NULL, NULL, 0},
-	{"replace",	StringRplcCmd,	NULL, NULL, NULL, 0},
-	{"reverse",	StringRevCmd,	NULL, NULL, NULL, 0},
-	{"tolower",	StringLowerCmd,	NULL, NULL, NULL, 0},
-	{"toupper",	StringUpperCmd,	NULL, NULL, NULL, 0},
-	{"totitle",	StringTitleCmd,	NULL, NULL, NULL, 0},
-	{"trim",	StringTrimCmd,	NULL, NULL, NULL, 0},
-	{"trimleft",	StringTrimLCmd,	NULL, NULL, NULL, 0},
-	{"trimright",	StringTrimRCmd,	NULL, NULL, NULL, 0},
-	{"wordend",	StringEndCmd,	NULL, NULL, NULL, 0},
-	{"wordstart",	StringStartCmd,	NULL, NULL, NULL, 0},
+	{"range",	StringRangeCmd,	TclCompileStringRangeCmd, NULL, NULL, 0},
+	{"repeat",	StringReptCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+	{"replace",	StringRplcCmd,	TclCompileStringReplaceCmd, NULL, NULL, 0},
+	{"reverse",	StringRevCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"tolower",	StringLowerCmd,	TclCompileStringToLowerCmd, NULL, NULL, 0},
+	{"toupper",	StringUpperCmd,	TclCompileStringToUpperCmd, NULL, NULL, 0},
+	{"totitle",	StringTitleCmd,	TclCompileStringToTitleCmd, NULL, NULL, 0},
+	{"trim",	StringTrimCmd,	TclCompileStringTrimCmd, NULL, NULL, 0},
+	{"trimleft",	StringTrimLCmd,	TclCompileStringTrimLCmd, NULL, NULL, 0},
+	{"trimright",	StringTrimRCmd,	TclCompileStringTrimRCmd, NULL, NULL, 0},
+	{"wordend",	StringEndCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+	{"wordstart",	StringStartCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
 	{NULL, NULL, NULL, NULL, NULL, 0}
     };
 
@@ -3365,7 +3447,7 @@ TclSubstOptions(
     for (i = 0; i < numOpts; i++) {
 	int optionIndex;
 
-	if (Tcl_GetIndexFromObj(interp, opts[i], substOptions, "switch", 0,
+	if (Tcl_GetIndexFromObj(interp, opts[i], substOptions, "option", 0,
 		&optionIndex) != TCL_OK) {
 	    return TCL_ERROR;
 	}
@@ -3503,7 +3585,7 @@ TclNRSwitchObjCmd(
 	    i++;
 	    goto finishedOptions;
 	case OPT_NOCASE:
-	    strCmpFn = strcasecmp;
+	    strCmpFn = TclUtfCasecmp;
 	    noCase = 1;
 	    break;
 
@@ -3565,7 +3647,7 @@ TclNRSwitchObjCmd(
   finishedOptions:
     if (objc - i < 2) {
 	Tcl_WrongNumArgs(interp, 1, objv,
-		"?-switch ...? string ?pattern body ...? ?default body?");
+		"?-option ...? string ?pattern body ...? ?default body?");
 	return TCL_ERROR;
     }
     if (indexVarObj != NULL && mode != OPT_REGEXP) {
@@ -3612,7 +3694,7 @@ TclNRSwitchObjCmd(
 
 	if (objc < 1) {
 	    Tcl_WrongNumArgs(interp, 1, savedObjv,
-		    "?-switch ...? string {?pattern body ...? ?default body?}");
+		    "?-option ...? string {?pattern body ...? ?default body?}");
 	    return TCL_ERROR;
 	}
 	objv = listv;
diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c
index 3540716..6a22a30 100644
--- a/generic/tclCompCmds.c
+++ b/generic/tclCompCmds.c
@@ -7,7 +7,7 @@
  * Copyright (c) 1997-1998 Sun Microsystems, Inc.
  * Copyright (c) 2001 by Kevin B. Kenny.  All rights reserved.
  * Copyright (c) 2002 ActiveState Corporation.
- * Copyright (c) 2004-2006 by Donal K. Fellows.
+ * Copyright (c) 2004-2013 by Donal K. Fellows.
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -15,6 +15,7 @@
 
 #include "tclInt.h"
 #include "tclCompile.h"
+#include <assert.h>
 
 /*
  * Prototypes for procedures defined later in this file:
@@ -25,80 +26,29 @@ static void		FreeDictUpdateInfo(ClientData clientData);
 static void		PrintDictUpdateInfo(ClientData clientData,
 			    Tcl_Obj *appendObj, ByteCode *codePtr,
 			    unsigned int pcOffset);
+static void		DisassembleDictUpdateInfo(ClientData clientData,
+			    Tcl_Obj *dictObj, ByteCode *codePtr,
+			    unsigned int pcOffset);
 static ClientData	DupForeachInfo(ClientData clientData);
 static void		FreeForeachInfo(ClientData clientData);
 static void		PrintForeachInfo(ClientData clientData,
 			    Tcl_Obj *appendObj, ByteCode *codePtr,
 			    unsigned int pcOffset);
-static void		CompileReturnInternal(CompileEnv *envPtr,
-			    unsigned char op, int code, int level,
-			    Tcl_Obj *returnOpts);
-static int		IndexTailVarIfKnown(Tcl_Interp *interp,
-			    Tcl_Token *varTokenPtr, CompileEnv *envPtr);
-static int		PushVarName(Tcl_Interp *interp,
-			    Tcl_Token *varTokenPtr, CompileEnv *envPtr,
-			    int flags, int *localIndexPtr,
-			    int *simpleVarNamePtr, int *isScalarPtr,
-			    int line, int *clNext);
-
-/*
- * Macro that encapsulates an efficiency trick that avoids a function call for
- * the simplest of compiles. The ANSI C "prototype" for this macro is:
- *
- * static void		CompileWord(CompileEnv *envPtr, Tcl_Token *tokenPtr,
- *			    Tcl_Interp *interp, int word);
- */
-
-#define CompileWord(envPtr, tokenPtr, interp, word) \
-    if ((tokenPtr)->type == TCL_TOKEN_SIMPLE_WORD) {			\
-	TclEmitPush(TclRegisterNewLiteral((envPtr), (tokenPtr)[1].start, \
-		(tokenPtr)[1].size), (envPtr));				\
-    } else {								\
-	envPtr->line = mapPtr->loc[eclIndex].line[word];		\
-	envPtr->clNext = mapPtr->loc[eclIndex].next[word];		\
-	TclCompileTokens((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
-		(envPtr));						\
-    }
-
-/*
- * TIP #280: Remember the per-word line information of the current command. An
- * index is used instead of a pointer as recursive compilation may reallocate,
- * i.e. move, the array. This is also the reason to save the nuloc now, it may
- * change during the course of the function.
- *
- * Macro to encapsulate the variable definition and setup.
- */
-
-#define DefineLineInformation \
-    ExtCmdLoc *mapPtr = envPtr->extCmdMapPtr;				\
-    int eclIndex = mapPtr->nuloc - 1
-
-#define SetLineInformation(word) \
-    envPtr->line = mapPtr->loc[eclIndex].line[(word)];			\
-    envPtr->clNext = mapPtr->loc[eclIndex].next[(word)]
-
-#define PushVarNameWord(i,v,e,f,l,s,sc,word) \
-    PushVarName(i,v,e,f,l,s,sc,						\
-	    mapPtr->loc[eclIndex].line[(word)],				\
-	    mapPtr->loc[eclIndex].next[(word)])
-
-/*
- * Often want to issue one of two versions of an instruction based on whether
- * the argument will fit in a single byte or not. This makes it much clearer.
- */
-
-#define Emit14Inst(nm,idx,envPtr) \
-    if (idx <= 255) {							\
-	TclEmitInstInt1(nm##1,idx,envPtr);				\
-    } else {								\
-	TclEmitInstInt4(nm##4,idx,envPtr);				\
-    }
-
-/*
- * Flags bits used by PushVarName.
- */
-
-#define TCL_NO_LARGE_INDEX 1	/* Do not return localIndex value > 255 */
+static void		DisassembleForeachInfo(ClientData clientData,
+			    Tcl_Obj *dictObj, ByteCode *codePtr,
+			    unsigned int pcOffset);
+static void		PrintNewForeachInfo(ClientData clientData,
+			    Tcl_Obj *appendObj, ByteCode *codePtr,
+			    unsigned int pcOffset);
+static void		DisassembleNewForeachInfo(ClientData clientData,
+			    Tcl_Obj *dictObj, ByteCode *codePtr,
+			    unsigned int pcOffset);
+static int		CompileEachloopCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    CompileEnv *envPtr, int collect);
+static int		CompileDictEachCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr, int collect);
 
 /*
  * The structures below define the AuxData types defined in this file.
@@ -108,14 +58,24 @@ const AuxDataType tclForeachInfoType = {
     "ForeachInfo",		/* name */
     DupForeachInfo,		/* dupProc */
     FreeForeachInfo,		/* freeProc */
-    PrintForeachInfo		/* printProc */
+    PrintForeachInfo,		/* printProc */
+    DisassembleForeachInfo	/* disassembleProc */
+};
+
+const AuxDataType tclNewForeachInfoType = {
+    "NewForeachInfo",		/* name */
+    DupForeachInfo,		/* dupProc */
+    FreeForeachInfo,		/* freeProc */
+    PrintNewForeachInfo,	/* printProc */
+    DisassembleNewForeachInfo	/* disassembleProc */
 };
 
 const AuxDataType tclDictUpdateInfoType = {
     "DictUpdateInfo",		/* name */
     DupDictUpdateInfo,		/* dupProc */
     FreeDictUpdateInfo,		/* freeProc */
-    PrintDictUpdateInfo		/* printProc */
+    PrintDictUpdateInfo,	/* printProc */
+    DisassembleDictUpdateInfo	/* disassembleProc */
 };
 
 /*
@@ -146,9 +106,10 @@ TclCompileAppendCmd(
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
     Tcl_Token *varTokenPtr, *valueTokenPtr;
-    int simpleVarName, isScalar, localIndex, numWords;
+    int isScalar, localIndex, numWords, i;
     DefineLineInformation;	/* TIP #280 */
 
+    /* TODO: Consider support for compiling expanded args. */
     numWords = parsePtr->numWords;
     if (numWords == 1) {
 	return TCL_ERROR;
@@ -160,10 +121,11 @@ TclCompileAppendCmd(
 	return TclCompileSetCmd(interp, parsePtr, cmdPtr, envPtr);
     } else if (numWords > 3) {
 	/*
-	 * APPEND instructions currently only handle one value.
+	 * APPEND instructions currently only handle one value, but we can
+	 * handle some multi-value cases by stringing them together.
 	 */
 
-	return TCL_ERROR;
+	goto appendMultiple;
     }
 
     /*
@@ -177,7 +139,7 @@ TclCompileAppendCmd(
     varTokenPtr = TokenAfter(parsePtr->tokenPtr);
 
     PushVarNameWord(interp, varTokenPtr, envPtr, 0,
-	    &localIndex, &simpleVarName, &isScalar, 1);
+	    &localIndex, &isScalar, 1);
 
     /*
      * We are doing an assignment, otherwise TclCompileSetCmd was called, so
@@ -185,16 +147,13 @@ TclCompileAppendCmd(
      * each argument.
      */
 
-    if (numWords > 2) {
 	valueTokenPtr = TokenAfter(varTokenPtr);
 	CompileWord(envPtr, valueTokenPtr, interp, 2);
-    }
 
     /*
      * Emit instructions to set/get the variable.
      */
 
-    if (simpleVarName) {
 	if (isScalar) {
 	    if (localIndex < 0) {
 		TclEmitOpcode(INST_APPEND_STK, envPtr);
@@ -208,10 +167,293 @@ TclCompileAppendCmd(
 		Emit14Inst(INST_APPEND_ARRAY, localIndex, envPtr);
 	    }
 	}
+
+    return TCL_OK;
+
+  appendMultiple:
+    /*
+     * Can only handle the case where we are appending to a local scalar when
+     * there are multiple values to append.  Fortunately, this is common.
+     */
+
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    localIndex = LocalScalarFromToken(varTokenPtr, envPtr);
+    if (localIndex < 0) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Definitely appending to a local scalar; generate the words and append
+     * them.
+     */
+
+    valueTokenPtr = TokenAfter(varTokenPtr);
+    for (i = 2 ; i < numWords ; i++) {
+	CompileWord(envPtr, valueTokenPtr, interp, i);
+	valueTokenPtr = TokenAfter(valueTokenPtr);
+    }
+    TclEmitInstInt4(	  INST_REVERSE, numWords-2,		envPtr);
+    for (i = 2 ; i < numWords ;) {
+	Emit14Inst(	  INST_APPEND_SCALAR, localIndex,	envPtr);
+	if (++i < numWords) {
+	    TclEmitOpcode(INST_POP,				envPtr);
+	}
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileArray*Cmd --
+ *
+ *	Functions called to compile "array" sucommands.
+ *
+ * Results:
+ *	All return TCL_OK for a successful compile, and TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "array" subcommand at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileArrayExistsCmd(
+    Tcl_Interp *interp,		/* Used for looking up stuff. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+    int isScalar, localIndex;
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    PushVarNameWord(interp, tokenPtr, envPtr, TCL_NO_ELEMENT,
+	    &localIndex, &isScalar, 1);
+    if (!isScalar) {
+	return TCL_ERROR;
+    }
+
+    if (localIndex >= 0) {
+	TclEmitInstInt4(INST_ARRAY_EXISTS_IMM, localIndex,	envPtr);
     } else {
-	TclEmitOpcode(INST_APPEND_STK, envPtr);
+	TclEmitOpcode(	INST_ARRAY_EXISTS_STK,			envPtr);
+    }
+    return TCL_OK;
+}
+
+int
+TclCompileArraySetCmd(
+    Tcl_Interp *interp,		/* Used for looking up stuff. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *varTokenPtr, *dataTokenPtr;
+    int isScalar, localIndex, code = TCL_OK;
+    int isDataLiteral, isDataValid, isDataEven, len;
+    int keyVar, valVar, infoIndex;
+    int fwd, offsetBack, offsetFwd;
+    Tcl_Obj *literalObj;
+    ForeachInfo *infoPtr;
+
+    if (parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    dataTokenPtr = TokenAfter(varTokenPtr);
+    literalObj = Tcl_NewObj();
+    isDataLiteral = TclWordKnownAtCompileTime(dataTokenPtr, literalObj);
+    isDataValid = (isDataLiteral
+	    && Tcl_ListObjLength(NULL, literalObj, &len) == TCL_OK);
+    isDataEven = (isDataValid && (len & 1) == 0);
+
+    /*
+     * Special case: literal odd-length argument is always an error.
+     */
+
+    if (isDataValid && !isDataEven) {
+	PushStringLiteral(envPtr, "list must have an even number of elements");
+	PushStringLiteral(envPtr, "-errorcode {TCL ARGUMENT FORMAT}");
+	TclEmitInstInt4(INST_RETURN_IMM, TCL_ERROR,		envPtr);
+	TclEmitInt4(		0,				envPtr);
+	goto done;
     }
 
+    /*
+     * Except for the special "ensure array" case below, when we're not in
+     * a proc, we cannot do a better compile than generic.
+     */
+
+    if ((varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) ||
+	    (envPtr->procPtr == NULL && !(isDataEven && len == 0))) {
+	code = TclCompileBasic2ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+	goto done;
+    }
+
+    PushVarNameWord(interp, varTokenPtr, envPtr, TCL_NO_ELEMENT,
+	    &localIndex, &isScalar, 1);
+    if (!isScalar) {
+	code = TCL_ERROR;
+	goto done;
+    }
+
+    /*
+     * Special case: literal empty value argument is just an "ensure array"
+     * operation.
+     */
+
+    if (isDataEven && len == 0) {
+	if (localIndex >= 0) {
+	    TclEmitInstInt4(INST_ARRAY_EXISTS_IMM, localIndex,	envPtr);
+	    TclEmitInstInt1(INST_JUMP_TRUE1, 7,			envPtr);
+	    TclEmitInstInt4(INST_ARRAY_MAKE_IMM, localIndex,	envPtr);
+	} else {
+	    TclEmitOpcode(  INST_DUP,				envPtr);
+	    TclEmitOpcode(  INST_ARRAY_EXISTS_STK,		envPtr);
+	    TclEmitInstInt1(INST_JUMP_TRUE1, 5,			envPtr);
+	    TclEmitOpcode(  INST_ARRAY_MAKE_STK,		envPtr);
+	    TclEmitInstInt1(INST_JUMP1, 3,			envPtr);
+	    /* Each branch decrements stack depth, but we only take one. */
+	    TclAdjustStackDepth(1, envPtr);
+	    TclEmitOpcode(  INST_POP,				envPtr);
+	}
+	PushStringLiteral(envPtr, "");
+	goto done;
+    }
+
+    if (localIndex < 0) {
+	/*
+	 * a non-local variable: upvar from a local one! This consumes the
+	 * variable name that was left at stacktop.
+	 */
+
+	localIndex = TclFindCompiledLocal(varTokenPtr->start,
+		varTokenPtr->size, 1, envPtr);
+	PushStringLiteral(envPtr, "0");
+	TclEmitInstInt4(INST_REVERSE, 2,        		envPtr);
+	TclEmitInstInt4(INST_UPVAR, localIndex, 		envPtr);
+	TclEmitOpcode(INST_POP,          			envPtr);
+    }
+    
+    /*
+     * Prepare for the internal foreach.
+     */
+
+    keyVar = AnonymousLocal(envPtr);
+    valVar = AnonymousLocal(envPtr);
+
+    infoPtr = ckalloc(sizeof(ForeachInfo));
+    infoPtr->numLists = 1;
+    infoPtr->varLists[0] = ckalloc(sizeof(ForeachVarList) + sizeof(int));
+    infoPtr->varLists[0]->numVars = 2;
+    infoPtr->varLists[0]->varIndexes[0] = keyVar;
+    infoPtr->varLists[0]->varIndexes[1] = valVar;
+    infoIndex = TclCreateAuxData(infoPtr, &tclForeachInfoType, envPtr);
+
+    /*
+     * Start issuing instructions to write to the array.
+     */
+
+    CompileWord(envPtr, dataTokenPtr, interp, 2);
+    if (!isDataLiteral || !isDataValid) {
+	/*
+	 * Only need this safety check if we're handling a non-literal or list
+	 * containing an invalid literal; with valid list literals, we've
+	 * already checked (worth it because literals are a very common
+	 * use-case with [array set]).
+	 */
+
+	TclEmitOpcode(	INST_DUP,				envPtr);
+	TclEmitOpcode(	INST_LIST_LENGTH,			envPtr);
+	PushStringLiteral(envPtr, "1");
+	TclEmitOpcode(	INST_BITAND,				envPtr);
+	offsetFwd = CurrentOffset(envPtr);
+	TclEmitInstInt1(INST_JUMP_FALSE1, 0,			envPtr);
+	PushStringLiteral(envPtr, "list must have an even number of elements");
+	PushStringLiteral(envPtr, "-errorcode {TCL ARGUMENT FORMAT}");
+	TclEmitInstInt4(INST_RETURN_IMM, TCL_ERROR,		envPtr);
+	TclEmitInt4(		0,				envPtr);
+	TclAdjustStackDepth(-1, envPtr);
+	fwd = CurrentOffset(envPtr) - offsetFwd;
+	TclStoreInt1AtPtr(fwd, envPtr->codeStart+offsetFwd+1);
+    }
+
+    TclEmitInstInt4(INST_ARRAY_EXISTS_IMM, localIndex,	envPtr);
+    TclEmitInstInt1(INST_JUMP_TRUE1, 7,			envPtr);
+    TclEmitInstInt4(INST_ARRAY_MAKE_IMM, localIndex,	envPtr);
+    TclEmitInstInt4(INST_FOREACH_START, infoIndex,	envPtr);
+    offsetBack = CurrentOffset(envPtr);
+    Emit14Inst(	INST_LOAD_SCALAR, keyVar,		envPtr);
+    Emit14Inst(	INST_LOAD_SCALAR, valVar,		envPtr);
+    Emit14Inst(	INST_STORE_ARRAY, localIndex,		envPtr);
+    TclEmitOpcode(	INST_POP,			envPtr);
+    infoPtr->loopCtTemp = offsetBack - CurrentOffset(envPtr); /*misuse */
+    TclEmitOpcode( INST_FOREACH_STEP,			envPtr);
+    TclEmitOpcode( INST_FOREACH_END,			envPtr);
+    TclAdjustStackDepth(-3, envPtr);
+    PushStringLiteral(envPtr,	"");
+
+    done:
+    Tcl_DecrRefCount(literalObj);
+    return code;
+}
+
+int
+TclCompileArrayUnsetCmd(
+    Tcl_Interp *interp,		/* Used for looking up stuff. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    int isScalar, localIndex;
+
+    if (parsePtr->numWords != 2) {
+	return TclCompileBasic2ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    }
+
+    PushVarNameWord(interp, tokenPtr, envPtr, TCL_NO_ELEMENT,
+	    &localIndex, &isScalar, 1);
+    if (!isScalar) {
+	return TCL_ERROR;
+    }
+
+    if (localIndex >= 0) {
+	TclEmitInstInt4(INST_ARRAY_EXISTS_IMM, localIndex,	envPtr);
+	TclEmitInstInt1(INST_JUMP_FALSE1, 8,			envPtr);
+	TclEmitInstInt1(INST_UNSET_SCALAR, 1,			envPtr);
+	TclEmitInt4(		localIndex,			envPtr);
+    } else {
+	TclEmitOpcode(	INST_DUP,				envPtr);
+	TclEmitOpcode(	INST_ARRAY_EXISTS_STK,			envPtr);
+	TclEmitInstInt1(INST_JUMP_FALSE1, 6,			envPtr);
+	TclEmitInstInt1(INST_UNSET_STK, 1,			envPtr);
+	TclEmitInstInt1(INST_JUMP1, 3,				envPtr);
+	/* Each branch decrements stack depth, but we only take one. */
+	TclAdjustStackDepth(1, envPtr);
+	TclEmitOpcode(	INST_POP,				envPtr);
+    }
+    PushStringLiteral(envPtr,	"");
     return TCL_OK;
 }
 
@@ -242,15 +484,34 @@ TclCompileBreakCmd(
 				 * compiled. */
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
+    ExceptionRange *rangePtr;
+    ExceptionAux *auxPtr;
+
     if (parsePtr->numWords != 1) {
 	return TCL_ERROR;
     }
 
     /*
-     * Emit a break instruction.
+     * Find the innermost exception range that contains this command.
      */
 
-    TclEmitOpcode(INST_BREAK, envPtr);
+    rangePtr = TclGetInnermostExceptionRange(envPtr, TCL_BREAK, &auxPtr);
+    if (rangePtr && rangePtr->type == LOOP_EXCEPTION_RANGE) {
+	/*
+	 * Found the target! No need for a nasty INST_BREAK here.
+	 */
+
+	TclCleanupStackForBreakContinue(envPtr, auxPtr);
+	TclAddLoopBreakFixup(envPtr, auxPtr);
+    } else {
+	/*
+	 * Emit a real break.
+	 */
+
+	TclEmitOpcode(INST_BREAK, envPtr);
+    }
+    TclAdjustStackDepth(1, envPtr);
+
     return TCL_OK;
 }
 
@@ -283,12 +544,10 @@ TclCompileCatchCmd(
 {
     JumpFixup jumpFixup;
     Tcl_Token *cmdTokenPtr, *resultNameTokenPtr, *optsNameTokenPtr;
-    const char *name;
-    int resultIndex, optsIndex, nameChars, range;
-    int initStackDepth = envPtr->currStackDepth;
-    int savedStackDepth;
+    int resultIndex, optsIndex, range, dropScript = 0;
     DefineLineInformation;	/* TIP #280 */
-
+    int depth = TclGetStackDepth(envPtr);
+    
     /*
      * If syntax does not match what we expect for [catch], do not compile.
      * Let runtime checks determine if syntax has changed.
@@ -317,17 +576,7 @@ TclCompileCatchCmd(
     if (parsePtr->numWords >= 3) {
 	resultNameTokenPtr = TokenAfter(cmdTokenPtr);
 	/* DGP */
-	if (resultNameTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	    return TCL_ERROR;
-	}
-
-	name = resultNameTokenPtr[1].start;
-	nameChars = resultNameTokenPtr[1].size;
-	if (!TclIsLocalScalar(name, nameChars)) {
-	    return TCL_ERROR;
-	}
-	resultIndex = TclFindCompiledLocal(resultNameTokenPtr[1].start,
-		resultNameTokenPtr[1].size, /*create*/ 1, envPtr);
+	resultIndex = LocalScalarFromToken(resultNameTokenPtr, envPtr);
 	if (resultIndex < 0) {
 	    return TCL_ERROR;
 	}
@@ -335,16 +584,7 @@ TclCompileCatchCmd(
 	/* DKF */
 	if (parsePtr->numWords == 4) {
 	    optsNameTokenPtr = TokenAfter(resultNameTokenPtr);
-	    if (optsNameTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-		return TCL_ERROR;
-	    }
-	    name = optsNameTokenPtr[1].start;
-	    nameChars = optsNameTokenPtr[1].size;
-	    if (!TclIsLocalScalar(name, nameChars)) {
-		return TCL_ERROR;
-	    }
-	    optsIndex = TclFindCompiledLocal(optsNameTokenPtr[1].start,
-		    optsNameTokenPtr[1].size, /*create*/ 1, envPtr);
+	    optsIndex = LocalScalarFromToken(optsNameTokenPtr, envPtr);
 	    if (optsIndex < 0) {
 		return TCL_ERROR;
 	    }
@@ -354,11 +594,7 @@ TclCompileCatchCmd(
     /*
      * We will compile the catch command. Declare the exception range that it
      * uses.
-     */
-
-    range = DeclareExceptionRange(envPtr, CATCH_EXCEPTION_RANGE);
-
-    /*
+     *
      * If the body is a simple word, compile a BEGIN_CATCH instruction,
      * followed by the instructions to eval the body.
      * Otherwise, compile instructions to substitute the body text before
@@ -371,83 +607,62 @@ TclCompileCatchCmd(
      * begin by undeflowing the stack below the mark set by BEGIN_CATCH4.
      */
 
-    SetLineInformation(1);
+    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
     if (cmdTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
-	savedStackDepth = envPtr->currStackDepth;
 	TclEmitInstInt4(	INST_BEGIN_CATCH4, range,	envPtr);
 	ExceptionRangeStarts(envPtr, range);
-	CompileBody(envPtr, cmdTokenPtr, interp);
+	BODY(cmdTokenPtr, 1);
     } else {
+	SetLineInformation(1);
 	CompileTokens(envPtr, cmdTokenPtr, interp);
-	savedStackDepth = envPtr->currStackDepth;
 	TclEmitInstInt4(	INST_BEGIN_CATCH4, range,	envPtr);
 	ExceptionRangeStarts(envPtr, range);
 	TclEmitOpcode(		INST_DUP,			envPtr);
-	TclEmitOpcode(		INST_EVAL_STK,			envPtr);
-    }
-    /* Stack at this point:
-     *    nonsimple:  script <mark> result
-     *    simple:            <mark> result
-     */
-
-    if (resultIndex == -1) {
-	/*
-	 * Special case when neither result nor options are being saved. In
-	 * that case, we can skip quite a bit of the command epilogue; all we
-	 * have to do is drop the result and push the return code (and, of
-	 * course, finish the catch context).
-	 */
-
+	TclEmitInvoke(envPtr,	INST_EVAL_STK);
+	/* drop the script */
+	dropScript = 1;
+	TclEmitInstInt4(	INST_REVERSE, 2,		envPtr);
 	TclEmitOpcode(		INST_POP,			envPtr);
-	PushLiteral(envPtr, "0", 1);
-	TclEmitInstInt1(	INST_JUMP1, 3,			envPtr);
-	envPtr->currStackDepth = savedStackDepth;
-	ExceptionRangeTarget(envPtr, range, catchOffset);
-	TclEmitOpcode(		INST_PUSH_RETURN_CODE,		envPtr);
-	ExceptionRangeEnds(envPtr, range);
-	TclEmitOpcode(		INST_END_CATCH,			envPtr);
-
-	/*
-	 * Stack at this point:
-	 *    nonsimple:  script <mark> returnCode
-	 *    simple:            <mark> returnCode
-	 */
-
-	goto dropScriptAtEnd;
     }
+    ExceptionRangeEnds(envPtr, range);
 
+    
     /*
      * Emit the "no errors" epilogue: push "0" (TCL_OK) as the catch result,
      * and jump around the "error case" code.
      */
 
-    PushLiteral(envPtr, "0", 1);
+    TclCheckStackDepth(depth+1, envPtr);
+    PushStringLiteral(envPtr, "0");
     TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &jumpFixup);
-    /* Stack at this point: ?script? <mark> result TCL_OK */
 
     /* 
      * Emit the "error case" epilogue. Push the interpreter result and the
      * return code.
      */
 
-    envPtr->currStackDepth = savedStackDepth;
     ExceptionRangeTarget(envPtr, range, catchOffset);
-    /* Stack at this point:  ?script? */
+    TclSetStackDepth(depth + dropScript, envPtr);
+    
+    if (dropScript) {
+	TclEmitOpcode(		INST_POP,			envPtr);
+    }
+
+
+    /* Stack at this point is empty */
     TclEmitOpcode(		INST_PUSH_RESULT,		envPtr);
     TclEmitOpcode(		INST_PUSH_RETURN_CODE,		envPtr);
 
-    /*
-     * Update the target of the jump after the "no errors" code. 
-     */
+    /* Stack at this point on both branches: result returnCode */
 
-    /* Stack at this point: ?script? result returnCode */
     if (TclFixupForwardJumpToHere(envPtr, &jumpFixup, 127)) {
 	Tcl_Panic("TclCompileCatchCmd: bad jump distance %d",
 		(int)(CurrentOffset(envPtr) - jumpFixup.codeOffset));
     }
 
     /*
-     * Push the return options if the caller wants them.
+     * Push the return options if the caller wants them. This needs to happen
+     * before INST_END_CATCH
      */
 
     if (optsIndex != -1) {
@@ -458,62 +673,118 @@ TclCompileCatchCmd(
      * End the catch
      */
 
-    ExceptionRangeEnds(envPtr, range);
     TclEmitOpcode(		INST_END_CATCH,			envPtr);
 
     /*
-     * At this point, the top of the stack is inconveniently ordered:
-     *		?script? result returnCode ?returnOptions?
-     * Reverse the stack to bring the result to the top.
+     * Save the result and return options if the caller wants them. This needs
+     * to happen after INST_END_CATCH (compile-3.6/7).
      */
 
     if (optsIndex != -1) {
-	TclEmitInstInt4(	INST_REVERSE, 3,		envPtr);
-    } else {
-	TclEmitInstInt4(	INST_REVERSE, 2,		envPtr);
+	Emit14Inst(		INST_STORE_SCALAR, optsIndex,	envPtr);
+	TclEmitOpcode(		INST_POP,			envPtr);
     }
 
     /*
-     * Store the result and remove it from the stack.
+     * At this point, the top of the stack is inconveniently ordered:
+     *		result returnCode
+     * Reverse the stack to store the result.
      */
 
-    Emit14Inst(			INST_STORE_SCALAR, resultIndex,	envPtr);
-    TclEmitOpcode(		INST_POP,			envPtr);
+    TclEmitInstInt4(	INST_REVERSE, 2,		envPtr);
+    if (resultIndex != -1) {
+	Emit14Inst(	INST_STORE_SCALAR, resultIndex,	envPtr);
+    }
+    TclEmitOpcode(	INST_POP,			envPtr);
+
+    TclCheckStackDepth(depth+1, envPtr);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileConcatCmd --
+ *
+ *	Procedure called to compile the "concat" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "concat" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileConcatCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Obj *objPtr, *listObj;
+    Tcl_Token *tokenPtr;
+    int i;
+
+    /* TODO: Consider compiling expansion case. */
+    if (parsePtr->numWords == 1) {
+	/*
+	 * [concat] without arguments just pushes an empty object.
+	 */
+
+	PushStringLiteral(envPtr, "");
+	return TCL_OK;
+    }
 
     /*
-     * Stack is now ?script? ?returnOptions? returnCode.
-     * If the options dict has been requested, it is buried on the stack under
-     * the return code. Reverse the stack to bring it to the top, store it and
-     * remove it from the stack.
+     * Test if all arguments are compile-time known. If they are, we can
+     * implement with a simple push.
      */
 
-    if (optsIndex != -1) {
-	TclEmitInstInt4(	INST_REVERSE, 2,		envPtr);
-	Emit14Inst(		INST_STORE_SCALAR, optsIndex,	envPtr);
-	TclEmitOpcode(		INST_POP,			envPtr);
+    listObj = Tcl_NewObj();
+    for (i = 1, tokenPtr = parsePtr->tokenPtr; i < parsePtr->numWords; i++) {
+	tokenPtr = TokenAfter(tokenPtr);
+	objPtr = Tcl_NewObj();
+	if (!TclWordKnownAtCompileTime(tokenPtr, objPtr)) {
+	    Tcl_DecrRefCount(objPtr);
+	    Tcl_DecrRefCount(listObj);
+	    listObj = NULL;
+	    break;
+	}
+	(void) Tcl_ListObjAppendElement(NULL, listObj, objPtr);
     }
+    if (listObj != NULL) {
+	Tcl_Obj **objs;
+	const char *bytes;
+	int len;
 
-  dropScriptAtEnd:
+	Tcl_ListObjGetElements(NULL, listObj, &len, &objs);
+	objPtr = Tcl_ConcatObj(len, objs);
+	Tcl_DecrRefCount(listObj);
+	bytes = Tcl_GetStringFromObj(objPtr, &len);
+	PushLiteral(envPtr, bytes, len);
+	Tcl_DecrRefCount(objPtr);
+	return TCL_OK;
+    }
 
     /*
-     * Stack is now ?script? result. Get rid of the subst'ed script if it's
-     * hanging arond.
+     * General case: runtime concat.
      */
 
-    if (cmdTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	TclEmitInstInt4(	INST_REVERSE, 2,		envPtr);
-	TclEmitOpcode(		INST_POP,			envPtr);
+    for (i = 1, tokenPtr = parsePtr->tokenPtr; i < parsePtr->numWords; i++) {
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, i);
     }
 
-    /* 
-     * Result of all this, on either branch, should have been to leave one
-     * operand -- the return code -- on the stack.
-     */
+    TclEmitInstInt4(	INST_CONCAT_STK, i-1,		envPtr);
 
-    if (envPtr->currStackDepth != initStackDepth + 1) {
-	Tcl_Panic("in TclCompileCatchCmd, currStackDepth = %d should be %d",
-		  envPtr->currStackDepth, initStackDepth+1);
-    }
     return TCL_OK;
 }
 
@@ -544,6 +815,9 @@ TclCompileContinueCmd(
 				 * compiled. */
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
+    ExceptionRange *rangePtr;
+    ExceptionAux *auxPtr;
+
     /*
      * There should be no argument after the "continue".
      */
@@ -553,10 +827,27 @@ TclCompileContinueCmd(
     }
 
     /*
-     * Emit a continue instruction.
+     * See if we can find a valid continueOffset (i.e., not -1) in the
+     * innermost containing exception range.
      */
 
-    TclEmitOpcode(INST_CONTINUE, envPtr);
+    rangePtr = TclGetInnermostExceptionRange(envPtr, TCL_CONTINUE, &auxPtr);
+    if (rangePtr && rangePtr->type == LOOP_EXCEPTION_RANGE) {
+	/*
+	 * Found the target! No need for a nasty INST_CONTINUE here.
+	 */
+
+	TclCleanupStackForBreakContinue(envPtr, auxPtr);
+	TclAddLoopContinueFixup(envPtr, auxPtr);
+    } else {
+	/*
+	 * Emit a real continue.
+	 */
+
+	TclEmitOpcode(INST_CONTINUE, envPtr);
+    }
+    TclAdjustStackDepth(1, envPtr);
+
     return TCL_OK;
 }
 
@@ -575,25 +866,6 @@ TclCompileContinueCmd(
  *	Instructions are added to envPtr to execute the "dict" subcommand at
  *	runtime.
  *
- * Notes:
- *	The following commands are in fairly common use and are possibly worth
- *	bytecoding:
- *		dict append
- *		dict create	[*]
- *		dict exists	[*]
- *		dict for
- *		dict get	[*]
- *		dict incr
- *		dict keys	[*]
- *		dict lappend
- *		dict set
- *		dict unset
- *
- *	In practice, those that are pure-value operators (marked with [*]) can
- *	probably be left alone (except perhaps [dict get] which is very very
- *	common) and [dict update] should be considered instead (really big
- *	win!)
- *
  *----------------------------------------------------------------------
  */
 
@@ -607,11 +879,9 @@ TclCompileDictSetCmd(
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
     Tcl_Token *tokenPtr;
-    int numWords, i;
+    int i, dictVarIndex;
     DefineLineInformation;	/* TIP #280 */
     Tcl_Token *varTokenPtr;
-    int dictVarIndex, nameChars;
-    const char *name;
 
     /*
      * There must be at least one argument after the command.
@@ -628,15 +898,7 @@ TclCompileDictSetCmd(
      */
 
     varTokenPtr = TokenAfter(parsePtr->tokenPtr);
-    if (varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
-    }
-    name = varTokenPtr[1].start;
-    nameChars = varTokenPtr[1].size;
-    if (!TclIsLocalScalar(name, nameChars)) {
-	return TCL_ERROR;
-    }
-    dictVarIndex = TclFindCompiledLocal(name, nameChars, 1, envPtr);
+    dictVarIndex = LocalScalarFromToken(varTokenPtr, envPtr);
     if (dictVarIndex < 0) {
 	return TCL_ERROR;
     }
@@ -646,8 +908,7 @@ TclCompileDictSetCmd(
      */
 
     tokenPtr = TokenAfter(varTokenPtr);
-    numWords = parsePtr->numWords-1;
-    for (i=1 ; i<numWords ; i++) {
+    for (i=2 ; i< parsePtr->numWords ; i++) {
 	CompileWord(envPtr, tokenPtr, interp, i);
 	tokenPtr = TokenAfter(tokenPtr);
     }
@@ -656,8 +917,9 @@ TclCompileDictSetCmd(
      * Now emit the instruction to do the dict manipulation.
      */
 
-    TclEmitInstInt4( INST_DICT_SET, numWords-2,		envPtr);
+    TclEmitInstInt4( INST_DICT_SET, parsePtr->numWords-3,	envPtr);
     TclEmitInt4(     dictVarIndex,			envPtr);
+    TclAdjustStackDepth(-1, envPtr);
     return TCL_OK;
 }
 
@@ -672,8 +934,7 @@ TclCompileDictIncrCmd(
 {
     DefineLineInformation;	/* TIP #280 */
     Tcl_Token *varTokenPtr, *keyTokenPtr;
-    int dictVarIndex, nameChars, incrAmount;
-    const char *name;
+    int dictVarIndex, incrAmount;
 
     /*
      * There must be at least two arguments after the command.
@@ -697,7 +958,7 @@ TclCompileDictIncrCmd(
 
 	incrTokenPtr = TokenAfter(keyTokenPtr);
 	if (incrTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	    return TCL_ERROR;
+	    return TclCompileBasic2Or3ArgCmd(interp, parsePtr,cmdPtr, envPtr);
 	}
 	word = incrTokenPtr[1].start;
 	numBytes = incrTokenPtr[1].size;
@@ -707,7 +968,7 @@ TclCompileDictIncrCmd(
 	code = TclGetIntFromObj(NULL, intObj, &incrAmount);
 	TclDecrRefCount(intObj);
 	if (code != TCL_OK) {
-	    return TCL_ERROR;
+	    return TclCompileBasic2Or3ArgCmd(interp, parsePtr,cmdPtr, envPtr);
 	}
     } else {
 	incrAmount = 1;
@@ -719,24 +980,16 @@ TclCompileDictIncrCmd(
      * discover what the index is.
      */
 
-    if (varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
-    }
-    name = varTokenPtr[1].start;
-    nameChars = varTokenPtr[1].size;
-    if (!TclIsLocalScalar(name, nameChars)) {
-	return TCL_ERROR;
-    }
-    dictVarIndex = TclFindCompiledLocal(name, nameChars, 1, envPtr);
+    dictVarIndex = LocalScalarFromToken(varTokenPtr, envPtr);
     if (dictVarIndex < 0) {
-	return TCL_ERROR;
+	return TclCompileBasic2Or3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
     }
 
     /*
      * Emit the key and the code to actually do the increment.
      */
 
-    CompileWord(envPtr, keyTokenPtr, interp, 3);
+    CompileWord(envPtr, keyTokenPtr, interp, 2);
     TclEmitInstInt4( INST_DICT_INCR_IMM, incrAmount,	envPtr);
     TclEmitInt4(     dictVarIndex,			envPtr);
     return TCL_OK;
@@ -752,7 +1005,7 @@ TclCompileDictGetCmd(
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
     Tcl_Token *tokenPtr;
-    int numWords, i;
+    int i;
     DefineLineInformation;	/* TIP #280 */
 
     /*
@@ -760,21 +1013,319 @@ TclCompileDictGetCmd(
      * case is legal, but too special and magic for us to deal with here).
      */
 
+    /* TODO: Consider support for compiling expanded args. */
     if (parsePtr->numWords < 3) {
 	return TCL_ERROR;
     }
     tokenPtr = TokenAfter(parsePtr->tokenPtr);
-    numWords = parsePtr->numWords-1;
 
     /*
      * Only compile this because we need INST_DICT_GET anyway.
      */
 
-    for (i=0 ; i<numWords ; i++) {
+    for (i=1 ; i<parsePtr->numWords ; i++) {
 	CompileWord(envPtr, tokenPtr, interp, i);
 	tokenPtr = TokenAfter(tokenPtr);
     }
-    TclEmitInstInt4(INST_DICT_GET, numWords-1, envPtr);
+    TclEmitInstInt4(INST_DICT_GET, parsePtr->numWords-2, envPtr);
+    TclAdjustStackDepth(-1, envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileDictExistsCmd(
+    Tcl_Interp *interp,		/* Used for looking up stuff. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr;
+    int i;
+    DefineLineInformation;	/* TIP #280 */
+
+    /*
+     * There must be at least two arguments after the command (the single-arg
+     * case is legal, but too special and magic for us to deal with here).
+     */
+
+    /* TODO: Consider support for compiling expanded args. */
+    if (parsePtr->numWords < 3) {
+	return TCL_ERROR;
+    }
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    /*
+     * Now we do the code generation.
+     */
+
+    for (i=1 ; i<parsePtr->numWords ; i++) {
+	CompileWord(envPtr, tokenPtr, interp, i);
+	tokenPtr = TokenAfter(tokenPtr);
+    }
+    TclEmitInstInt4(INST_DICT_EXISTS, parsePtr->numWords-2, envPtr);
+    TclAdjustStackDepth(-1, envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileDictUnsetCmd(
+    Tcl_Interp *interp,		/* Used for looking up stuff. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr;
+    DefineLineInformation;	/* TIP #280 */
+    int i, dictVarIndex;
+
+    /*
+     * There must be at least one argument after the variable name for us to
+     * compile to bytecode.
+     */
+
+    /* TODO: Consider support for compiling expanded args. */
+    if (parsePtr->numWords < 3) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * The dictionary variable must be a local scalar that is knowable at
+     * compile time; anything else exceeds the complexity of the opcode. So
+     * discover what the index is.
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    dictVarIndex = LocalScalarFromToken(tokenPtr, envPtr);
+    if (dictVarIndex < 0) {
+	return TclCompileBasicMin2ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    }
+
+    /*
+     * Remaining words (the key path) can be handled normally.
+     */
+
+    for (i=2 ; i<parsePtr->numWords ; i++) {
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, i);
+    }
+
+    /*
+     * Now emit the instruction to do the dict manipulation.
+     */
+
+    TclEmitInstInt4( INST_DICT_UNSET, parsePtr->numWords-2,	envPtr);
+    TclEmitInt4(	dictVarIndex,				envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileDictCreateCmd(
+    Tcl_Interp *interp,		/* Used for looking up stuff. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    int worker;			/* Temp var for building the value in. */
+    Tcl_Token *tokenPtr;
+    Tcl_Obj *keyObj, *valueObj, *dictObj;
+    const char *bytes;
+    int i, len;
+
+    if ((parsePtr->numWords & 1) == 0) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * See if we can build the value at compile time...
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    dictObj = Tcl_NewObj();
+    Tcl_IncrRefCount(dictObj);
+    for (i=1 ; i<parsePtr->numWords ; i+=2) {
+	keyObj = Tcl_NewObj();
+	Tcl_IncrRefCount(keyObj);
+	if (!TclWordKnownAtCompileTime(tokenPtr, keyObj)) {
+	    Tcl_DecrRefCount(keyObj);
+	    Tcl_DecrRefCount(dictObj);
+	    goto nonConstant;
+	}
+	tokenPtr = TokenAfter(tokenPtr);
+	valueObj = Tcl_NewObj();
+	Tcl_IncrRefCount(valueObj);
+	if (!TclWordKnownAtCompileTime(tokenPtr, valueObj)) {
+	    Tcl_DecrRefCount(keyObj);
+	    Tcl_DecrRefCount(valueObj);
+	    Tcl_DecrRefCount(dictObj);
+	    goto nonConstant;
+	}
+	tokenPtr = TokenAfter(tokenPtr);
+	Tcl_DictObjPut(NULL, dictObj, keyObj, valueObj);
+	Tcl_DecrRefCount(keyObj);
+	Tcl_DecrRefCount(valueObj);
+    }
+
+    /*
+     * We did! Excellent. The "verifyDict" is to do type forcing.
+     */
+
+    bytes = Tcl_GetStringFromObj(dictObj, &len);
+    PushLiteral(envPtr, bytes, len);
+    TclEmitOpcode(		INST_DUP,			envPtr);
+    TclEmitOpcode(		INST_DICT_VERIFY,		envPtr);
+    Tcl_DecrRefCount(dictObj);
+    return TCL_OK;
+
+    /*
+     * Otherwise, we've got to issue runtime code to do the building, which we
+     * do by [dict set]ting into an unnamed local variable. This requires that
+     * we are in a context with an LVT.
+     */
+
+  nonConstant:
+    worker = AnonymousLocal(envPtr);
+    if (worker < 0) {
+	return TclCompileBasicMin0ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    }
+
+    PushStringLiteral(envPtr,		"");
+    Emit14Inst(			INST_STORE_SCALAR, worker,	envPtr);
+    TclEmitOpcode(		INST_POP,			envPtr);
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    for (i=1 ; i<parsePtr->numWords ; i+=2) {
+	CompileWord(envPtr, tokenPtr, interp, i);
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, i+1);
+	tokenPtr = TokenAfter(tokenPtr);
+	TclEmitInstInt4(	INST_DICT_SET, 1,		envPtr);
+	TclEmitInt4(			worker,			envPtr);
+	TclAdjustStackDepth(-1, envPtr);
+	TclEmitOpcode(		INST_POP,			envPtr);
+    }
+    Emit14Inst(			INST_LOAD_SCALAR, worker,	envPtr);
+    TclEmitInstInt1(		INST_UNSET_SCALAR, 0,		envPtr);
+    TclEmitInt4(			worker,			envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileDictMergeCmd(
+    Tcl_Interp *interp,		/* Used for looking up stuff. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+    int i, workerIndex, infoIndex, outLoop;
+
+    /*
+     * Deal with some special edge cases. Note that in the case with one
+     * argument, the only thing to do is to verify the dict-ness.
+     */
+
+    /* TODO: Consider support for compiling expanded args. (less likely) */
+    if (parsePtr->numWords < 2) {
+	PushStringLiteral(envPtr, "");
+	return TCL_OK;
+    } else if (parsePtr->numWords == 2) {
+	tokenPtr = TokenAfter(parsePtr->tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, 1);
+	TclEmitOpcode(		INST_DUP,			envPtr);
+	TclEmitOpcode(		INST_DICT_VERIFY,		envPtr);
+	return TCL_OK;
+    }
+
+    /*
+     * There's real merging work to do.
+     *
+     * Allocate some working space. This means we'll only ever compile this
+     * command when there's an LVT present.
+     */
+
+    workerIndex = AnonymousLocal(envPtr);
+    if (workerIndex < 0) {
+	return TclCompileBasicMin2ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    }
+    infoIndex = AnonymousLocal(envPtr);
+
+    /*
+     * Get the first dictionary and verify that it is so.
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr, interp, 1);
+    TclEmitOpcode(		INST_DUP,			envPtr);
+    TclEmitOpcode(		INST_DICT_VERIFY,		envPtr);
+    Emit14Inst(			INST_STORE_SCALAR, workerIndex,	envPtr);
+    TclEmitOpcode(		INST_POP,			envPtr);
+
+    /*
+     * For each of the remaining dictionaries...
+     */
+
+    outLoop = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
+    TclEmitInstInt4(		INST_BEGIN_CATCH4, outLoop,	envPtr);
+    ExceptionRangeStarts(envPtr, outLoop);
+    for (i=2 ; i<parsePtr->numWords ; i++) {
+	/*
+	 * Get the dictionary, and merge its pairs into the first dict (using
+	 * a small loop).
+	 */
+
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, i);
+	TclEmitInstInt4(	INST_DICT_FIRST, infoIndex,	envPtr);
+	TclEmitInstInt1(	INST_JUMP_TRUE1, 24,		envPtr);
+	TclEmitInstInt4(	INST_REVERSE, 2,		envPtr);
+	TclEmitInstInt4(	INST_DICT_SET, 1,		envPtr);
+	TclEmitInt4(			workerIndex,		envPtr);
+	TclAdjustStackDepth(-1, envPtr);
+	TclEmitOpcode(		INST_POP,			envPtr);
+	TclEmitInstInt4(	INST_DICT_NEXT, infoIndex,	envPtr);
+	TclEmitInstInt1(	INST_JUMP_FALSE1, -20,		envPtr);
+	TclEmitOpcode(		INST_POP,			envPtr);
+	TclEmitOpcode(		INST_POP,			envPtr);
+	TclEmitInstInt1(	INST_UNSET_SCALAR, 0,		envPtr);
+	TclEmitInt4(			infoIndex,		envPtr);
+    }
+    ExceptionRangeEnds(envPtr, outLoop);
+    TclEmitOpcode(		INST_END_CATCH,			envPtr);
+
+    /*
+     * Clean up any state left over.
+     */
+
+    Emit14Inst(			INST_LOAD_SCALAR, workerIndex,	envPtr);
+    TclEmitInstInt1(		INST_UNSET_SCALAR, 0,		envPtr);
+    TclEmitInt4(			workerIndex,		envPtr);
+    TclEmitInstInt1(		INST_JUMP1, 18,			envPtr);
+
+    /*
+     * If an exception happens when starting to iterate over the second (and
+     * subsequent) dicts. This is strictly not necessary, but it is nice.
+     */
+
+    TclAdjustStackDepth(-1, envPtr);
+    ExceptionRangeTarget(envPtr, outLoop, catchOffset);
+    TclEmitOpcode(		INST_PUSH_RETURN_OPTIONS,	envPtr);
+    TclEmitOpcode(		INST_PUSH_RESULT,		envPtr);
+    TclEmitOpcode(		INST_END_CATCH,			envPtr);
+    TclEmitInstInt1(		INST_UNSET_SCALAR, 0,		envPtr);
+    TclEmitInt4(			workerIndex,		envPtr);
+    TclEmitInstInt1(		INST_UNSET_SCALAR, 0,		envPtr);
+    TclEmitInt4(			infoIndex,		envPtr);
+    TclEmitOpcode(		INST_RETURN_STK,		envPtr);
+
     return TCL_OK;
 }
 
@@ -787,23 +1338,51 @@ TclCompileDictForCmd(
 				 * compiled. */
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
+    return CompileDictEachCmd(interp, parsePtr, cmdPtr, envPtr,
+	    TCL_EACH_KEEP_NONE);
+}
+
+int
+TclCompileDictMapCmd(
+    Tcl_Interp *interp,		/* Used for looking up stuff. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    return CompileDictEachCmd(interp, parsePtr, cmdPtr, envPtr,
+	    TCL_EACH_COLLECT);
+}
+
+int
+CompileDictEachCmd(
+    Tcl_Interp *interp,		/* Used for looking up stuff. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr,		/* Holds resulting instructions. */
+    int collect)		/* Flag == TCL_EACH_COLLECT to collect and
+				 * construct a new dictionary with the loop
+				 * body result. */
+{
     DefineLineInformation;	/* TIP #280 */
     Tcl_Token *varsTokenPtr, *dictTokenPtr, *bodyTokenPtr;
     int keyVarIndex, valueVarIndex, nameChars, loopRange, catchRange;
     int infoIndex, jumpDisplacement, bodyTargetOffset, emptyTargetOffset;
     int numVars, endTargetOffset;
-    int savedStackDepth = envPtr->currStackDepth;
-				/* Needed because jumps confuse the stack
-				 * space calculator. */
+    int collectVar = -1;	/* Index of temp var holding the result
+				 * dict. */
     const char **argv;
     Tcl_DString buffer;
 
     /*
-     * There must be at least three argument after the command.
+     * There must be three arguments after the command.
      */
 
     if (parsePtr->numWords != 4) {
-	return TCL_ERROR;
+	return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
     }
 
     varsTokenPtr = TokenAfter(parsePtr->tokenPtr);
@@ -811,7 +1390,19 @@ TclCompileDictForCmd(
     bodyTokenPtr = TokenAfter(dictTokenPtr);
     if (varsTokenPtr->type != TCL_TOKEN_SIMPLE_WORD ||
 	    bodyTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
+	return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    }
+
+    /*
+     * Create temporary variable to capture return values from loop body when
+     * we're collecting results.
+     */
+
+    if (collect == TCL_EACH_COLLECT) {
+	collectVar = AnonymousLocal(envPtr);
+	if (collectVar < 0) {
+	    return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+	}
     }
 
     /*
@@ -824,31 +1415,22 @@ TclCompileDictForCmd(
     if (Tcl_SplitList(NULL, Tcl_DStringValue(&buffer), &numVars,
 	    &argv) != TCL_OK) {
 	Tcl_DStringFree(&buffer);
-	return TCL_ERROR;
+	return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
     }
     Tcl_DStringFree(&buffer);
     if (numVars != 2) {
 	ckfree(argv);
-	return TCL_ERROR;
+	return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
     }
 
     nameChars = strlen(argv[0]);
-    if (!TclIsLocalScalar(argv[0], nameChars)) {
-	ckfree(argv);
-	return TCL_ERROR;
-    }
-    keyVarIndex = TclFindCompiledLocal(argv[0], nameChars, 1, envPtr);
-
+    keyVarIndex = LocalScalar(argv[0], nameChars, envPtr);
     nameChars = strlen(argv[1]);
-    if (!TclIsLocalScalar(argv[1], nameChars)) {
-	ckfree(argv);
-	return TCL_ERROR;
-    }
-    valueVarIndex = TclFindCompiledLocal(argv[1], nameChars, 1, envPtr);
+    valueVarIndex = LocalScalar(argv[1], nameChars, envPtr);
     ckfree(argv);
 
     if ((keyVarIndex < 0) || (valueVarIndex < 0)) {
-	return TCL_ERROR;
+	return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
     }
 
     /*
@@ -858,33 +1440,44 @@ TclCompileDictForCmd(
      * (at which point it should also have been finished with).
      */
 
-    infoIndex = TclFindCompiledLocal(NULL, 0, 1, envPtr);
+    infoIndex = AnonymousLocal(envPtr);
     if (infoIndex < 0) {
-	return TCL_ERROR;
+	return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
     }
 
     /*
      * Preparation complete; issue instructions. Note that this code issues
      * fixed-sized jumps. That simplifies things a lot!
      *
-     * First up, get the dictionary and start the iteration. No catching of
-     * errors at this point.
+     * First up, initialize the accumulator dictionary if needed.
      */
 
-    CompileWord(envPtr, dictTokenPtr, interp, 3);
-    TclEmitInstInt4(	INST_DICT_FIRST, infoIndex,		envPtr);
-    emptyTargetOffset = CurrentOffset(envPtr);
-    TclEmitInstInt4(	INST_JUMP_TRUE4, 0,			envPtr);
+    if (collect == TCL_EACH_COLLECT) {
+	PushStringLiteral(envPtr, "");
+	Emit14Inst(	INST_STORE_SCALAR, collectVar,		envPtr);
+	TclEmitOpcode(	INST_POP,				envPtr);
+    }
+
+    /*
+     * Get the dictionary and start the iteration. No catching of errors at
+     * this point.
+     */
+
+    CompileWord(envPtr, dictTokenPtr, interp, 2);
 
     /*
      * Now we catch errors from here on so that we can finalize the search
      * started by Tcl_DictObjFirst above.
      */
 
-    catchRange = DeclareExceptionRange(envPtr, CATCH_EXCEPTION_RANGE);
+    catchRange = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
     TclEmitInstInt4(	INST_BEGIN_CATCH4, catchRange,		envPtr);
     ExceptionRangeStarts(envPtr, catchRange);
 
+    TclEmitInstInt4(	INST_DICT_FIRST, infoIndex,		envPtr);
+    emptyTargetOffset = CurrentOffset(envPtr);
+    TclEmitInstInt4(	INST_JUMP_TRUE4, 0,			envPtr);
+
     /*
      * Inside the iteration, write the loop variables.
      */
@@ -899,15 +1492,22 @@ TclCompileDictForCmd(
      * Set up the loop exception targets.
      */
 
-    loopRange = DeclareExceptionRange(envPtr, LOOP_EXCEPTION_RANGE);
+    loopRange = TclCreateExceptRange(LOOP_EXCEPTION_RANGE, envPtr);
     ExceptionRangeStarts(envPtr, loopRange);
 
     /*
      * Compile the loop body itself. It should be stack-neutral.
      */
 
-    SetLineInformation(3);
-    CompileBody(envPtr, bodyTokenPtr, interp);
+    BODY(bodyTokenPtr, 3);
+    if (collect == TCL_EACH_COLLECT) {
+	Emit14Inst(	INST_LOAD_SCALAR, keyVarIndex,		envPtr);
+	TclEmitInstInt4(INST_OVER, 1,				envPtr);
+	TclEmitInstInt4(INST_DICT_SET, 1,			envPtr);
+	TclEmitInt4(		collectVar,			envPtr);
+	TclAdjustStackDepth(-1, envPtr);
+	TclEmitOpcode(	INST_POP,				envPtr);
+    }
     TclEmitOpcode(	INST_POP,				envPtr);
 
     /*
@@ -927,35 +1527,25 @@ TclCompileDictForCmd(
     TclEmitInstInt4(	INST_DICT_NEXT, infoIndex,		envPtr);
     jumpDisplacement = bodyTargetOffset - CurrentOffset(envPtr);
     TclEmitInstInt4(	INST_JUMP_FALSE4, jumpDisplacement,	envPtr);
-    TclEmitOpcode(	INST_POP,				envPtr);
-    TclEmitOpcode(	INST_POP,				envPtr);
-
-    /*
-     * Now do the final cleanup for the no-error case (this is where we break
-     * out of the loop to) by force-terminating the iteration (if not already
-     * terminated), ditching the exception info and jumping to the last
-     * instruction for this command. In theory, this could be done using the
-     * "finally" clause (next generated) but this is faster.
-     */
-
-    ExceptionRangeTarget(envPtr, loopRange, breakOffset);
-    TclEmitInstInt1(	INST_UNSET_SCALAR, 0,			envPtr);
-    TclEmitInt4(	infoIndex,				envPtr);
-    TclEmitOpcode(	INST_END_CATCH,				envPtr);
     endTargetOffset = CurrentOffset(envPtr);
-    TclEmitInstInt4(	INST_JUMP4, 0,				envPtr);
+    TclEmitInstInt1(	INST_JUMP1, 0,				envPtr);
 
     /*
      * Error handler "finally" clause, which force-terminates the iteration
      * and rethrows the error.
      */
 
+    TclAdjustStackDepth(-1, envPtr);
     ExceptionRangeTarget(envPtr, catchRange, catchOffset);
     TclEmitOpcode(	INST_PUSH_RETURN_OPTIONS,		envPtr);
     TclEmitOpcode(	INST_PUSH_RESULT,			envPtr);
-    TclEmitInstInt1(	INST_UNSET_SCALAR, 0,			envPtr);
-    TclEmitInt4(	infoIndex,				envPtr);
     TclEmitOpcode(	INST_END_CATCH,				envPtr);
+    TclEmitInstInt1(	INST_UNSET_SCALAR, 0,			envPtr);
+    TclEmitInt4(		infoIndex,			envPtr);
+    if (collect == TCL_EACH_COLLECT) {
+	TclEmitInstInt1(INST_UNSET_SCALAR, 0,			envPtr);
+	TclEmitInt4(		collectVar,			envPtr);
+    }
     TclEmitOpcode(	INST_RETURN_STK,			envPtr);
 
     /*
@@ -964,25 +1554,33 @@ TclCompileDictForCmd(
      * easy!) Note that we skip the END_CATCH. [Bug 1382528]
      */
 
-    envPtr->currStackDepth = savedStackDepth+2;
     jumpDisplacement = CurrentOffset(envPtr) - emptyTargetOffset;
     TclUpdateInstInt4AtPc(INST_JUMP_TRUE4, jumpDisplacement,
 	    envPtr->codeStart + emptyTargetOffset);
+    jumpDisplacement = CurrentOffset(envPtr) - endTargetOffset;
+    TclUpdateInstInt1AtPc(INST_JUMP1, jumpDisplacement,
+	    envPtr->codeStart + endTargetOffset);
     TclEmitOpcode(	INST_POP,				envPtr);
     TclEmitOpcode(	INST_POP,				envPtr);
-    TclEmitInstInt1(	INST_UNSET_SCALAR, 0,			envPtr);
-    TclEmitInt4(	infoIndex,				envPtr);
+    ExceptionRangeTarget(envPtr, loopRange, breakOffset);
+    TclFinalizeLoopExceptionRange(envPtr, loopRange);
+    TclEmitOpcode(	INST_END_CATCH,				envPtr);
 
     /*
      * Final stage of the command (normal case) is that we push an empty
-     * object. This is done last to promote peephole optimization when it's
-     * dropped immediately.
+     * object (or push the accumulator as the result object). This is done
+     * last to promote peephole optimization when it's dropped immediately.
      */
 
-    jumpDisplacement = CurrentOffset(envPtr) - endTargetOffset;
-    TclUpdateInstInt4AtPc(INST_JUMP4, jumpDisplacement,
-	    envPtr->codeStart + endTargetOffset);
-    PushLiteral(envPtr, "", 0);
+    TclEmitInstInt1(	INST_UNSET_SCALAR, 0,			envPtr);
+    TclEmitInt4(		infoIndex,			envPtr);
+    if (collect == TCL_EACH_COLLECT) {
+	Emit14Inst(	INST_LOAD_SCALAR, collectVar,		envPtr);
+	TclEmitInstInt1(INST_UNSET_SCALAR, 0,			envPtr);
+	TclEmitInt4(		collectVar,			envPtr);
+    } else {
+	PushStringLiteral(envPtr, "");
+    }
     return TCL_OK;
 }
 
@@ -996,10 +1594,8 @@ TclCompileDictUpdateCmd(
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
     DefineLineInformation;	/* TIP #280 */
-    const char *name;
-    int i, nameChars, dictIndex, numVars, range, infoIndex;
+    int i, dictIndex, numVars, range, infoIndex;
     Tcl_Token **keyTokenPtrs, *dictVarTokenPtr, *bodyTokenPtr, *tokenPtr;
-    int savedStackDepth = envPtr->currStackDepth;
     DictUpdateInfo *duiPtr;
     JumpFixup jumpFixup;
 
@@ -1028,17 +1624,9 @@ TclCompileDictUpdateCmd(
      */
 
     dictVarTokenPtr = TokenAfter(parsePtr->tokenPtr);
-    if (dictVarTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
-    }
-    name = dictVarTokenPtr[1].start;
-    nameChars = dictVarTokenPtr[1].size;
-    if (!TclIsLocalScalar(name, nameChars)) {
-	return TCL_ERROR;
-    }
-    dictIndex = TclFindCompiledLocal(name, nameChars, 1, envPtr);
+    dictIndex = LocalScalarFromToken(dictVarTokenPtr, envPtr);
     if (dictIndex < 0) {
-	return TCL_ERROR;
+	goto issueFallback;
     }
 
     /*
@@ -1049,8 +1637,7 @@ TclCompileDictUpdateCmd(
 
     duiPtr = ckalloc(sizeof(DictUpdateInfo) + sizeof(int) * (numVars - 1));
     duiPtr->length = numVars;
-    keyTokenPtrs = TclStackAlloc(interp,
-	    sizeof(Tcl_Token *) * numVars);
+    keyTokenPtrs = TclStackAlloc(interp, sizeof(Tcl_Token *) * numVars);
     tokenPtr = TokenAfter(dictVarTokenPtr);
 
     for (i=0 ; i<numVars ; i++) {
@@ -1059,37 +1646,21 @@ TclCompileDictUpdateCmd(
 	 */
 
 	keyTokenPtrs[i] = tokenPtr;
-
-	/*
-	 * Variables first need to be checked for sanity.
-	 */
-
 	tokenPtr = TokenAfter(tokenPtr);
-	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	    goto failedUpdateInfoAssembly;
-	}
-	name = tokenPtr[1].start;
-	nameChars = tokenPtr[1].size;
-	if (!TclIsLocalScalar(name, nameChars)) {
-	    goto failedUpdateInfoAssembly;
-	}
 
 	/*
-	 * Stash the index in the auxiliary data.
+	 * Stash the index in the auxiliary data (if it is indeed a local
+	 * scalar that is resolvable at compile-time).
 	 */
 
-	duiPtr->varIndices[i] =
-		TclFindCompiledLocal(name, nameChars, 1, envPtr);
+	duiPtr->varIndices[i] = LocalScalarFromToken(tokenPtr, envPtr);
 	if (duiPtr->varIndices[i] < 0) {
 	    goto failedUpdateInfoAssembly;
 	}
 	tokenPtr = TokenAfter(tokenPtr);
     }
     if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-    failedUpdateInfoAssembly:
-	ckfree(duiPtr);
-	TclStackFree(interp, keyTokenPtrs);
-	return TCL_ERROR;
+	goto failedUpdateInfoAssembly;
     }
     bodyTokenPtr = tokenPtr;
 
@@ -1101,20 +1672,17 @@ TclCompileDictUpdateCmd(
     infoIndex = TclCreateAuxData(duiPtr, &tclDictUpdateInfoType, envPtr);
 
     for (i=0 ; i<numVars ; i++) {
-	CompileWord(envPtr, keyTokenPtrs[i], interp, i);
+	CompileWord(envPtr, keyTokenPtrs[i], interp, 2*i+2);
     }
     TclEmitInstInt4(	INST_LIST, numVars,			envPtr);
     TclEmitInstInt4(	INST_DICT_UPDATE_START, dictIndex,	envPtr);
-    TclEmitInt4(	infoIndex,				envPtr);
+    TclEmitInt4(		infoIndex,			envPtr);
 
-    range = DeclareExceptionRange(envPtr, CATCH_EXCEPTION_RANGE);
+    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
     TclEmitInstInt4(	INST_BEGIN_CATCH4, range,		envPtr);
 
     ExceptionRangeStarts(envPtr, range);
-    envPtr->currStackDepth++;
-    SetLineInformation(parsePtr->numWords - 1);
-    CompileBody(envPtr, bodyTokenPtr, interp);
-    envPtr->currStackDepth = savedStackDepth;
+    BODY(bodyTokenPtr, parsePtr->numWords - 1);
     ExceptionRangeEnds(envPtr, range);
 
     /*
@@ -1125,7 +1693,7 @@ TclCompileDictUpdateCmd(
     TclEmitOpcode(	INST_END_CATCH,				envPtr);
     TclEmitInstInt4(	INST_REVERSE, 2,			envPtr);
     TclEmitInstInt4(	INST_DICT_UPDATE_END, dictIndex,	envPtr);
-    TclEmitInt4(	infoIndex,				envPtr);
+    TclEmitInt4(		infoIndex,			envPtr);
 
     /*
      * Jump around the exceptional termination code.
@@ -1146,8 +1714,8 @@ TclCompileDictUpdateCmd(
     TclEmitInstInt4(	INST_REVERSE, 3,			envPtr);
 
     TclEmitInstInt4(	INST_DICT_UPDATE_END, dictIndex,	envPtr);
-    TclEmitInt4(	infoIndex,				envPtr);
-    TclEmitOpcode(	INST_RETURN_STK,			envPtr);
+    TclEmitInt4(		infoIndex,			envPtr);
+    TclEmitInvoke(envPtr,INST_RETURN_STK);
 
     if (TclFixupForwardJumpToHere(envPtr, &jumpFixup, 127)) {
 	Tcl_Panic("TclCompileDictCmd(update): bad jump distance %d",
@@ -1155,6 +1723,16 @@ TclCompileDictUpdateCmd(
     }
     TclStackFree(interp, keyTokenPtrs);
     return TCL_OK;
+
+    /*
+     * Clean up after a failure to create the DictUpdateInfo structure.
+     */
+
+  failedUpdateInfoAssembly:
+    ckfree(duiPtr);
+    TclStackFree(interp, keyTokenPtrs);
+  issueFallback:
+    return TclCompileBasicMin2ArgCmd(interp, parsePtr, cmdPtr, envPtr);
 }
 
 int
@@ -1176,6 +1754,7 @@ TclCompileDictAppendCmd(
      * speed quite so much. ;-)
      */
 
+    /* TODO: Consider support for compiling expanded args. */
     if (parsePtr->numWords<4 || parsePtr->numWords>100) {
 	return TCL_ERROR;
     }
@@ -1185,19 +1764,9 @@ TclCompileDictAppendCmd(
      */
 
     tokenPtr = TokenAfter(parsePtr->tokenPtr);
-    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
-    } else {
-	register const char *name = tokenPtr[1].start;
-	register int nameChars = tokenPtr[1].size;
-
-	if (!TclIsLocalScalar(name, nameChars)) {
-	    return TCL_ERROR;
-	}
-	dictVarIndex = TclFindCompiledLocal(name, nameChars, 1, envPtr);
-	if (dictVarIndex < 0) {
-	    return TCL_ERROR;
-	}
+    dictVarIndex = LocalScalarFromToken(tokenPtr, envPtr);
+    if (dictVarIndex < 0) {
+	return TclCompileBasicMin2ArgCmd(interp, parsePtr,cmdPtr, envPtr);
     }
 
     /*
@@ -1210,7 +1779,7 @@ TclCompileDictAppendCmd(
 	tokenPtr = TokenAfter(tokenPtr);
     }
     if (parsePtr->numWords > 4) {
-	TclEmitInstInt1(INST_CONCAT1, parsePtr->numWords-3, envPtr);
+	TclEmitInstInt1(INST_STR_CONCAT1, parsePtr->numWords-3, envPtr);
     }
 
     /*
@@ -1232,34 +1801,36 @@ TclCompileDictLappendCmd(
 {
     DefineLineInformation;	/* TIP #280 */
     Tcl_Token *varTokenPtr, *keyTokenPtr, *valueTokenPtr;
-    int dictVarIndex, nameChars;
-    const char *name;
+    int dictVarIndex;
 
     /*
      * There must be three arguments after the command.
      */
 
+    /* TODO: Consider support for compiling expanded args. */
+    /* Probably not.  Why is INST_DICT_LAPPEND limited to one value? */
     if (parsePtr->numWords != 4) {
 	return TCL_ERROR;
     }
 
+    /*
+     * Parse the arguments.
+     */
+
     varTokenPtr = TokenAfter(parsePtr->tokenPtr);
     keyTokenPtr = TokenAfter(varTokenPtr);
     valueTokenPtr = TokenAfter(keyTokenPtr);
-    if (varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
-    }
-    name = varTokenPtr[1].start;
-    nameChars = varTokenPtr[1].size;
-    if (!TclIsLocalScalar(name, nameChars)) {
-	return TCL_ERROR;
-    }
-    dictVarIndex = TclFindCompiledLocal(name, nameChars, 1, envPtr);
+    dictVarIndex = LocalScalarFromToken(varTokenPtr, envPtr);
     if (dictVarIndex < 0) {
-	return TCL_ERROR;
+	return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
     }
-    CompileWord(envPtr, keyTokenPtr, interp, 3);
-    CompileWord(envPtr, valueTokenPtr, interp, 4);
+
+    /*
+     * Issue the implementation.
+     */
+
+    CompileWord(envPtr, keyTokenPtr, interp, 2);
+    CompileWord(envPtr, valueTokenPtr, interp, 3);
     TclEmitInstInt4(	INST_DICT_LAPPEND, dictVarIndex,	envPtr);
     return TCL_OK;
 }
@@ -1274,10 +1845,9 @@ TclCompileDictWithCmd(
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
     DefineLineInformation;	/* TIP #280 */
-    int i, range, varNameTmp, pathTmp, keysTmp, gotPath, dictVar = -1;
-    int bodyIsEmpty = 1;
+    int i, range, varNameTmp = -1, pathTmp = -1, keysTmp, gotPath;
+    int dictVar, bodyIsEmpty = 1;
     Tcl_Token *varTokenPtr, *tokenPtr;
-    int savedStackDepth = envPtr->currStackDepth;
     JumpFixup jumpFixup;
     const char *ptr, *end;
 
@@ -1285,6 +1855,7 @@ TclCompileDictWithCmd(
      * There must be at least one argument after the command.
      */
 
+    /* TODO: Consider support for compiling expanded args. */
     if (parsePtr->numWords < 3) {
 	return TCL_ERROR;
     }
@@ -1300,7 +1871,7 @@ TclCompileDictWithCmd(
 	tokenPtr = TokenAfter(tokenPtr);
     }
     if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
+	return TclCompileBasicMin2ArgCmd(interp, parsePtr, cmdPtr, envPtr);
     }
 
     /*
@@ -1312,7 +1883,8 @@ TclCompileDictWithCmd(
     for (ptr=tokenPtr[1].start,end=ptr+tokenPtr[1].size ; ptr!=end ; ptr++) {
 	if (*ptr!=' ' && *ptr!='\t' && *ptr!='\n' && *ptr!='\r') {
 	    if (envPtr->procPtr == NULL) {
-		return TCL_ERROR;
+		return TclCompileBasicMin2ArgCmd(interp, parsePtr, cmdPtr,
+			envPtr);
 	    }
 	    bodyIsEmpty = 0;
 	    break;
@@ -1324,11 +1896,7 @@ TclCompileDictWithCmd(
      */
 
     gotPath = (parsePtr->numWords > 3);
-    if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD &&
-	    TclIsLocalScalar(varTokenPtr[1].start, varTokenPtr[1].size)) {
-	dictVar = TclFindCompiledLocal(varTokenPtr[1].start,
-		varTokenPtr[1].size, 1, envPtr);
-    }
+    dictVar = LocalScalarFromToken(varTokenPtr, envPtr);
 
     /*
      * Special case: an empty body means we definitely have no need to issue
@@ -1347,7 +1915,7 @@ TclCompileDictWithCmd(
 
 		tokenPtr = TokenAfter(varTokenPtr);
 		for (i=2 ; i<parsePtr->numWords-1 ; i++) {
-		    CompileWord(envPtr, tokenPtr, interp, i-1);
+		    CompileWord(envPtr, tokenPtr, interp, i);
 		    tokenPtr = TokenAfter(tokenPtr);
 		}
 		TclEmitInstInt4(INST_LIST, parsePtr->numWords-3,envPtr);
@@ -1355,18 +1923,16 @@ TclCompileDictWithCmd(
 		TclEmitInstInt4(INST_OVER, 1,			envPtr);
 		TclEmitOpcode(	INST_DICT_EXPAND,		envPtr);
 		TclEmitInstInt4(INST_DICT_RECOMBINE_IMM, dictVar, envPtr);
-		PushLiteral(envPtr, "", 0);
 	    } else {
 		/*
 		 * Case: Direct dict in LVT with empty body.
 		 */
 
-		PushLiteral(envPtr, "", 0);
+		PushStringLiteral(envPtr, "");
 		Emit14Inst(	INST_LOAD_SCALAR, dictVar,	envPtr);
-		PushLiteral(envPtr, "", 0);
+		PushStringLiteral(envPtr, "");
 		TclEmitOpcode(	INST_DICT_EXPAND,		envPtr);
 		TclEmitInstInt4(INST_DICT_RECOMBINE_IMM, dictVar, envPtr);
-		PushLiteral(envPtr, "", 0);
 	    }
 	} else {
 	    if (gotPath) {
@@ -1376,7 +1942,7 @@ TclCompileDictWithCmd(
 
 		tokenPtr = varTokenPtr;
 		for (i=1 ; i<parsePtr->numWords-1 ; i++) {
-		    CompileWord(envPtr, tokenPtr, interp, i-1);
+		    CompileWord(envPtr, tokenPtr, interp, i);
 		    tokenPtr = TokenAfter(tokenPtr);
 		}
 		TclEmitInstInt4(INST_LIST, parsePtr->numWords-3,envPtr);
@@ -1385,23 +1951,22 @@ TclCompileDictWithCmd(
 		TclEmitInstInt4(INST_OVER, 1,			envPtr);
 		TclEmitOpcode(	INST_DICT_EXPAND,		envPtr);
 		TclEmitOpcode(	INST_DICT_RECOMBINE_STK,	envPtr);
-		PushLiteral(envPtr, "", 0);
 	    } else {
 		/*
 		 * Case: Direct dict in non-simple var with empty body.
 		 */
 
-		CompileWord(envPtr, varTokenPtr, interp, 0);
+		CompileWord(envPtr, varTokenPtr, interp, 1);
 		TclEmitOpcode(	INST_DUP,			envPtr);
 		TclEmitOpcode(	INST_LOAD_STK,			envPtr);
-		PushLiteral(envPtr, "", 0);
+		PushStringLiteral(envPtr, "");
 		TclEmitOpcode(	INST_DICT_EXPAND,		envPtr);
-		PushLiteral(envPtr, "", 0);
+		PushStringLiteral(envPtr, "");
 		TclEmitInstInt4(INST_REVERSE, 2,		envPtr);
 		TclEmitOpcode(	INST_DICT_RECOMBINE_STK,	envPtr);
-		PushLiteral(envPtr, "", 0);
 	    }
 	}
+	PushStringLiteral(envPtr, "");
 	return TCL_OK;
     }
 
@@ -1414,29 +1979,25 @@ TclCompileDictWithCmd(
      */
 
     if (dictVar == -1) {
-	varNameTmp = TclFindCompiledLocal(NULL, 0, 1, envPtr);
-    } else {
-	varNameTmp = -1;
+	varNameTmp = AnonymousLocal(envPtr);
     }
     if (gotPath) {
-	pathTmp = TclFindCompiledLocal(NULL, 0, 1, envPtr);
-    } else {
-	pathTmp = -1;
+	pathTmp = AnonymousLocal(envPtr);
     }
-    keysTmp = TclFindCompiledLocal(NULL, 0, 1, envPtr);
+    keysTmp = AnonymousLocal(envPtr);
 
     /*
      * Issue instructions. First, the part to expand the dictionary.
      */
 
-    if (varNameTmp > -1) {
-	CompileWord(envPtr, varTokenPtr, interp, 0);
+    if (dictVar == -1) {
+	CompileWord(envPtr, varTokenPtr, interp, 1);
 	Emit14Inst(		INST_STORE_SCALAR, varNameTmp,	envPtr);
     }
     tokenPtr = TokenAfter(varTokenPtr);
     if (gotPath) {
 	for (i=2 ; i<parsePtr->numWords-1 ; i++) {
-	    CompileWord(envPtr, tokenPtr, interp, i-1);
+	    CompileWord(envPtr, tokenPtr, interp, i);
 	    tokenPtr = TokenAfter(tokenPtr);
 	}
 	TclEmitInstInt4(	INST_LIST, parsePtr->numWords-3,envPtr);
@@ -1451,7 +2012,7 @@ TclCompileDictWithCmd(
     if (gotPath) {
 	Emit14Inst(		INST_LOAD_SCALAR, pathTmp,	envPtr);
     } else {
-	PushLiteral(envPtr, "", 0);
+	PushStringLiteral(envPtr, "");
     }
     TclEmitOpcode(		INST_DICT_EXPAND,		envPtr);
     Emit14Inst(			INST_STORE_SCALAR, keysTmp,	envPtr);
@@ -1461,14 +2022,11 @@ TclCompileDictWithCmd(
      * Now the body of the [dict with].
      */
 
-    range = DeclareExceptionRange(envPtr, CATCH_EXCEPTION_RANGE);
+    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
     TclEmitInstInt4(		INST_BEGIN_CATCH4, range,	envPtr);
 
     ExceptionRangeStarts(envPtr, range);
-    envPtr->currStackDepth++;
-    SetLineInformation(parsePtr->numWords-1);
-    CompileBody(envPtr, tokenPtr, interp);
-    envPtr->currStackDepth = savedStackDepth;
+    BODY(tokenPtr, parsePtr->numWords - 1);
     ExceptionRangeEnds(envPtr, range);
 
     /*
@@ -1476,13 +2034,13 @@ TclCompileDictWithCmd(
      */
 
     TclEmitOpcode(		INST_END_CATCH,			envPtr);
-    if (varNameTmp > -1) {
+    if (dictVar == -1) {
 	Emit14Inst(		INST_LOAD_SCALAR, varNameTmp,	envPtr);
     }
     if (gotPath) {
 	Emit14Inst(		INST_LOAD_SCALAR, pathTmp,	envPtr);
     } else {
-	PushLiteral(envPtr, "", 0);
+	PushStringLiteral(envPtr, "");
     }
     Emit14Inst(			INST_LOAD_SCALAR, keysTmp,	envPtr);
     if (dictVar == -1) {
@@ -1496,17 +2054,18 @@ TclCompileDictWithCmd(
      * Now fold the results back into the dictionary in the exception case.
      */
 
+    TclAdjustStackDepth(-1, envPtr);
     ExceptionRangeTarget(envPtr, range, catchOffset);
     TclEmitOpcode(		INST_PUSH_RETURN_OPTIONS,	envPtr);
     TclEmitOpcode(		INST_PUSH_RESULT,		envPtr);
     TclEmitOpcode(		INST_END_CATCH,			envPtr);
-    if (varNameTmp > -1) {
+    if (dictVar == -1) {
 	Emit14Inst(		INST_LOAD_SCALAR, varNameTmp,	envPtr);
     }
     if (parsePtr->numWords > 3) {
 	Emit14Inst(		INST_LOAD_SCALAR, pathTmp,	envPtr);
     } else {
-	PushLiteral(envPtr, "", 0);
+	PushStringLiteral(envPtr, "");
     }
     Emit14Inst(			INST_LOAD_SCALAR, keysTmp,	envPtr);
     if (dictVar == -1) {
@@ -1514,7 +2073,7 @@ TclCompileDictWithCmd(
     } else {
 	TclEmitInstInt4(	INST_DICT_RECOMBINE_IMM, dictVar, envPtr);
     }
-    TclEmitOpcode(		INST_RETURN_STK,		envPtr);
+    TclEmitInvoke(envPtr,	INST_RETURN_STK);
 
     /*
      * Prepare for the start of the next command.
@@ -1539,11 +2098,13 @@ TclCompileDictWithCmd(
  *	DupDictUpdateInfo: a copy of the auxiliary data
  *	FreeDictUpdateInfo: none
  *	PrintDictUpdateInfo: none
+ *	DisassembleDictUpdateInfo: none
  *
  * Side effects:
  *	DupDictUpdateInfo: allocates memory
  *	FreeDictUpdateInfo: releases memory
  *	PrintDictUpdateInfo: none
+ *	DisassembleDictUpdateInfo: none
  *
  *----------------------------------------------------------------------
  */
@@ -1586,6 +2147,25 @@ PrintDictUpdateInfo(
 	Tcl_AppendPrintfToObj(appendObj, "%%v%u", duiPtr->varIndices[i]);
     }
 }
+
+static void
+DisassembleDictUpdateInfo(
+    ClientData clientData,
+    Tcl_Obj *dictObj,
+    ByteCode *codePtr,
+    unsigned int pcOffset)
+{
+    DictUpdateInfo *duiPtr = clientData;
+    int i;
+    Tcl_Obj *variables = Tcl_NewObj();
+
+    for (i=0 ; i<duiPtr->length ; i++) {
+	Tcl_ListObjAppendElement(NULL, variables,
+		Tcl_NewIntObj(duiPtr->varIndices[i]));
+    }
+    Tcl_DictObjPut(NULL, dictObj, Tcl_NewStringObj("variables", -1),
+	    variables);
+}
 
 /*
  *----------------------------------------------------------------------
@@ -1616,19 +2196,48 @@ TclCompileErrorCmd(
 {
     /*
      * General syntax: [error message ?errorInfo? ?errorCode?]
-     * However, we only deal with the case where there is just a message.
      */
-    Tcl_Token *messageTokenPtr;
+
+    Tcl_Token *tokenPtr;
     DefineLineInformation;	/* TIP #280 */
 
-    if (parsePtr->numWords != 2) {
+    if (parsePtr->numWords < 2 || parsePtr->numWords > 4) {
 	return TCL_ERROR;
     }
-    messageTokenPtr = TokenAfter(parsePtr->tokenPtr);
 
-    PushLiteral(envPtr, "-code error -level 0", 20);
-    CompileWord(envPtr, messageTokenPtr, interp, 1);
-    TclEmitOpcode(INST_RETURN_STK, envPtr);
+    /*
+     * Handle the message.
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr, interp, 1);
+
+    /*
+     * Construct the options. Note that -code and -level are not here.
+     */
+
+    if (parsePtr->numWords == 2) {
+	PushStringLiteral(envPtr, "");
+    } else {
+	PushStringLiteral(envPtr, "-errorinfo");
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, 2);
+	if (parsePtr->numWords == 3) {
+	    TclEmitInstInt4(	INST_LIST, 2,			envPtr);
+	} else {
+	    PushStringLiteral(envPtr, "-errorcode");
+	    tokenPtr = TokenAfter(tokenPtr);
+	    CompileWord(envPtr, tokenPtr, interp, 3);
+	    TclEmitInstInt4(	INST_LIST, 4,			envPtr);
+	}
+    }
+
+    /*
+     * Issue the error via 'returnImm error 0'.
+     */
+
+    TclEmitInstInt4(		INST_RETURN_IMM, TCL_ERROR,	envPtr);
+    TclEmitInt4(			0,			envPtr);
     return TCL_OK;
 }
 
@@ -1706,9 +2315,8 @@ TclCompileForCmd(
 {
     Tcl_Token *startTokenPtr, *testTokenPtr, *nextTokenPtr, *bodyTokenPtr;
     JumpFixup jumpEvalCondFixup;
-    int testCodeOffset, bodyCodeOffset, nextCodeOffset, jumpDist;
+    int bodyCodeOffset, nextCodeOffset, jumpDist;
     int bodyRange, nextRange;
-    int savedStackDepth = envPtr->currStackDepth;
     DefineLineInformation;	/* TIP #280 */
 
     if (parsePtr->numWords != 5) {
@@ -1740,20 +2348,10 @@ TclCompileForCmd(
     }
 
     /*
-     * Create ExceptionRange records for the body and the "next" command. The
-     * "next" command's ExceptionRange supports break but not continue (and
-     * has a -1 continueOffset).
-     */
-
-    bodyRange = DeclareExceptionRange(envPtr, LOOP_EXCEPTION_RANGE);
-    nextRange = TclCreateExceptRange(LOOP_EXCEPTION_RANGE, envPtr);
-
-    /*
      * Inline compile the initial command.
      */
 
-    SetLineInformation(1);
-    CompileBody(envPtr, startTokenPtr, interp);
+    BODY(startTokenPtr, 1);
     TclEmitOpcode(INST_POP, envPtr);
 
     /*
@@ -1774,44 +2372,37 @@ TclCompileForCmd(
      * Compile the loop body.
      */
 
+    bodyRange = TclCreateExceptRange(LOOP_EXCEPTION_RANGE, envPtr);
     bodyCodeOffset = ExceptionRangeStarts(envPtr, bodyRange);
-    SetLineInformation(4);
-    CompileBody(envPtr, bodyTokenPtr, interp);
+    BODY(bodyTokenPtr, 4);
     ExceptionRangeEnds(envPtr, bodyRange);
-    envPtr->currStackDepth = savedStackDepth + 1;
     TclEmitOpcode(INST_POP, envPtr);
 
     /*
-     * Compile the "next" subcommand.
+     * Compile the "next" subcommand. Note that this exception range will not
+     * have a continueOffset (other than -1) connected to it; it won't trap
+     * TCL_CONTINUE but rather just TCL_BREAK.
      */
 
-    envPtr->currStackDepth = savedStackDepth;
+    nextRange = TclCreateExceptRange(LOOP_EXCEPTION_RANGE, envPtr);
+    envPtr->exceptAuxArrayPtr[nextRange].supportsContinue = 0;
     nextCodeOffset = ExceptionRangeStarts(envPtr, nextRange);
-    SetLineInformation(3);
-    CompileBody(envPtr, nextTokenPtr, interp);
+    BODY(nextTokenPtr, 3);
     ExceptionRangeEnds(envPtr, nextRange);
-    envPtr->currStackDepth = savedStackDepth + 1;
     TclEmitOpcode(INST_POP, envPtr);
-    envPtr->currStackDepth = savedStackDepth;
 
     /*
      * Compile the test expression then emit the conditional jump that
      * terminates the for.
      */
 
-    testCodeOffset = CurrentOffset(envPtr);
-
-    jumpDist = testCodeOffset - jumpEvalCondFixup.codeOffset;
-    if (TclFixupForwardJump(envPtr, &jumpEvalCondFixup, jumpDist, 127)) {
+    if (TclFixupForwardJumpToHere(envPtr, &jumpEvalCondFixup, 127)) {
 	bodyCodeOffset += 3;
 	nextCodeOffset += 3;
-	testCodeOffset += 3;
     }
 
     SetLineInformation(2);
-    envPtr->currStackDepth = savedStackDepth;
     TclCompileExprWords(interp, testTokenPtr, 1, envPtr);
-    envPtr->currStackDepth = savedStackDepth + 1;
 
     jumpDist = CurrentOffset(envPtr) - bodyCodeOffset;
     if (jumpDist > 127) {
@@ -1832,13 +2423,14 @@ TclCompileForCmd(
 
     ExceptionRangeTarget(envPtr, bodyRange, breakOffset);
     ExceptionRangeTarget(envPtr, nextRange, breakOffset);
+    TclFinalizeLoopExceptionRange(envPtr, bodyRange);
+    TclFinalizeLoopExceptionRange(envPtr, nextRange);
 
     /*
      * The for command's result is an empty string.
      */
 
-    envPtr->currStackDepth = savedStackDepth;
-    PushLiteral(envPtr, "", 0);
+    PushStringLiteral(envPtr, "");
 
     return TCL_OK;
 }
@@ -1870,32 +2462,82 @@ TclCompileForeachCmd(
 				 * compiled. */
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
+    return CompileEachloopCmd(interp, parsePtr, cmdPtr, envPtr,
+	    TCL_EACH_KEEP_NONE);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileLmapCmd --
+ *
+ *	Procedure called to compile the "lmap" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "lmap" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileLmapCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    return CompileEachloopCmd(interp, parsePtr, cmdPtr, envPtr,
+	    TCL_EACH_COLLECT);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * CompileEachloopCmd --
+ *
+ *	Procedure called to compile the "foreach" and "lmap" commands.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "foreach" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+CompileEachloopCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr,		/* Holds resulting instructions. */
+    int collect)		/* Select collecting or accumulating mode
+				 * (TCL_EACH_*) */
+{
     Proc *procPtr = envPtr->procPtr;
-    ForeachInfo *infoPtr;	/* Points to the structure describing this
+    ForeachInfo *infoPtr=NULL;	/* Points to the structure describing this
 				 * foreach command. Stored in a AuxData
 				 * record in the ByteCode. */
-    int firstValueTemp;		/* Index of the first temp var in the frame
-				 * used to point to a value list. */
-    int loopCtTemp;		/* Index of temp var holding the loop's
-				 * iteration count. */
+    
     Tcl_Token *tokenPtr, *bodyTokenPtr;
-    unsigned char *jumpPc;
-    JumpFixup jumpFalseFixup;
-    int jumpBackDist, jumpBackOffset, infoIndex, range, bodyIndex;
-    int numWords, numLists, numVars, loopIndex, tempVar, i, j, code;
-    int savedStackDepth = envPtr->currStackDepth;
+    int jumpBackOffset, infoIndex, range;
+    int numWords, numLists, i, j, code = TCL_OK;
+    Tcl_Obj *varListObj = NULL;
     DefineLineInformation;	/* TIP #280 */
 
     /*
-     * We parse the variable list argument words and create two arrays:
-     *    varcList[i] is number of variables in i-th var list.
-     *    varvList[i] points to array of var names in i-th var list.
-     */
-
-    int *varcList;
-    const char ***varvList;
-
-    /*
      * If the foreach command isn't in a procedure, don't compile it inline:
      * the payoff is too small.
      */
@@ -1922,241 +2564,153 @@ TclCompileForeachCmd(
 	return TCL_ERROR;
     }
 
-    bodyIndex = i-1;
-
     /*
-     * Allocate storage for the varcList and varvList arrays if necessary.
+     * Create and initialize the ForeachInfo and ForeachVarList data
+     * structures describing this command. Then create a AuxData record
+     * pointing to the ForeachInfo structure.
      */
 
     numLists = (numWords - 2)/2;
-    varcList = TclStackAlloc(interp, numLists * sizeof(int));
-    memset(varcList, 0, numLists * sizeof(int));
-    varvList = (const char ***) TclStackAlloc(interp,
-	    numLists * sizeof(const char **));
-    memset((char*) varvList, 0, numLists * sizeof(const char **));
+    infoPtr = ckalloc(sizeof(ForeachInfo)
+	    + (numLists - 1) * sizeof(ForeachVarList *));
+    infoPtr->numLists = 0;	/* Count this up as we go */
 
     /*
-     * Break up each var list and set the varcList and varvList arrays. Don't
+     * Parse each var list into sequence of var names.  Don't
      * compile the foreach inline if any var name needs substitutions or isn't
      * a scalar, or if any var list needs substitutions.
      */
 
-    loopIndex = 0;
+    varListObj = Tcl_NewObj();
     for (i = 0, tokenPtr = parsePtr->tokenPtr;
 	    i < numWords-1;
 	    i++, tokenPtr = TokenAfter(tokenPtr)) {
-	Tcl_DString varList;
+	ForeachVarList *varListPtr;
+	int numVars;
 
 	if (i%2 != 1) {
 	    continue;
 	}
-	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	    code = TCL_ERROR;
-	    goto done;
-	}
-
-	/*
-	 * Lots of copying going on here. Need a ListObj wizard to show a
-	 * better way.
-	 */
-
-	Tcl_DStringInit(&varList);
-	TclDStringAppendToken(&varList, &tokenPtr[1]);
-	code = Tcl_SplitList(interp, Tcl_DStringValue(&varList),
-		&varcList[loopIndex], &varvList[loopIndex]);
-	Tcl_DStringFree(&varList);
-	if (code != TCL_OK) {
-	    code = TCL_ERROR;
-	    goto done;
-	}
-	numVars = varcList[loopIndex];
 
 	/*
 	 * If the variable list is empty, we can enter an infinite loop when
-	 * the interpreted version would not. Take care to ensure this does
-	 * not happen. [Bug 1671138]
+	 * the interpreted version would not.  Take care to ensure this does
+	 * not happen.  [Bug 1671138]
 	 */
 
-	if (numVars == 0) {
+	if (!TclWordKnownAtCompileTime(tokenPtr, varListObj) ||
+		TCL_OK != Tcl_ListObjLength(NULL, varListObj, &numVars) ||
+		numVars == 0) {
 	    code = TCL_ERROR;
 	    goto done;
 	}
 
-	for (j = 0;  j < numVars;  j++) {
-	    const char *varName = varvList[loopIndex][j];
+	varListPtr = ckalloc(sizeof(ForeachVarList)
+		+ (numVars - 1) * sizeof(int));
+	varListPtr->numVars = numVars;
+	infoPtr->varLists[i/2] = varListPtr;
+	infoPtr->numLists++;
 
-	    if (!TclIsLocalScalar(varName, (int) strlen(varName))) {
+	for (j = 0;  j < numVars;  j++) {
+	    Tcl_Obj *varNameObj;
+	    const char *bytes;
+	    int numBytes, varIndex;
+
+	    Tcl_ListObjIndex(NULL, varListObj, j, &varNameObj);
+	    bytes = Tcl_GetStringFromObj(varNameObj, &numBytes);
+	    varIndex = LocalScalar(bytes, numBytes, envPtr);
+	    if (varIndex < 0) {
 		code = TCL_ERROR;
 		goto done;
 	    }
+	    varListPtr->varIndexes[j] = varIndex;
 	}
-	loopIndex++;
+	Tcl_SetObjLength(varListObj, 0);
     }
 
     /*
-     * We will compile the foreach command. Reserve (numLists + 1) temporary
-     * variables:
-     *    - numLists temps to hold each value list
-     *    - 1 temp for the loop counter (index of next element in each list)
-     *
-     * At this time we don't try to reuse temporaries; if there are two
-     * nonoverlapping foreach loops, they don't share any temps.
+     * We will compile the foreach command.
      */
 
-    code = TCL_OK;
-    firstValueTemp = -1;
-    for (loopIndex = 0;  loopIndex < numLists;  loopIndex++) {
-	tempVar = TclFindCompiledLocal(NULL, /*nameChars*/ 0,
-		/*create*/ 1, envPtr);
-	if (loopIndex == 0) {
-	    firstValueTemp = tempVar;
-	}
-    }
-    loopCtTemp = TclFindCompiledLocal(NULL, /*nameChars*/ 0,
-	    /*create*/ 1, envPtr);
+    infoIndex = TclCreateAuxData(infoPtr, &tclNewForeachInfoType, envPtr);
 
     /*
-     * Create and initialize the ForeachInfo and ForeachVarList data
-     * structures describing this command. Then create a AuxData record
-     * pointing to the ForeachInfo structure.
+     * Create the collecting object, unshared.
      */
-
-    infoPtr = ckalloc(sizeof(ForeachInfo)
-	    + numLists * sizeof(ForeachVarList *));
-    infoPtr->numLists = numLists;
-    infoPtr->firstValueTemp = firstValueTemp;
-    infoPtr->loopCtTemp = loopCtTemp;
-    for (loopIndex = 0;  loopIndex < numLists;  loopIndex++) {
-	ForeachVarList *varListPtr;
-
-	numVars = varcList[loopIndex];
-	varListPtr = ckalloc(sizeof(ForeachVarList)
-		+ numVars * sizeof(int));
-	varListPtr->numVars = numVars;
-	for (j = 0;  j < numVars;  j++) {
-	    const char *varName = varvList[loopIndex][j];
-	    int nameChars = strlen(varName);
-
-	    varListPtr->varIndexes[j] = TclFindCompiledLocal(varName,
-		    nameChars, /*create*/ 1, envPtr);
-	}
-	infoPtr->varLists[loopIndex] = varListPtr;
+    
+    if (collect == TCL_EACH_COLLECT) {
+	TclEmitInstInt4(INST_LIST, 0, envPtr);
     }
-    infoIndex = TclCreateAuxData(infoPtr, &tclForeachInfoType, envPtr);
-
+	    
     /*
-     * Create an exception record to handle [break] and [continue].
+     * Evaluate each value list and leave it on stack.
      */
 
-    range = DeclareExceptionRange(envPtr, LOOP_EXCEPTION_RANGE);
-
-    /*
-     * Evaluate then store each value list in the associated temporary.
-     */
-
-    loopIndex = 0;
     for (i = 0, tokenPtr = parsePtr->tokenPtr;
 	    i < numWords-1;
 	    i++, tokenPtr = TokenAfter(tokenPtr)) {
 	if ((i%2 == 0) && (i > 0)) {
-	    SetLineInformation(i);
-	    CompileTokens(envPtr, tokenPtr, interp);
-	    tempVar = (firstValueTemp + loopIndex);
-	    Emit14Inst(		INST_STORE_SCALAR, tempVar,	envPtr);
-	    TclEmitOpcode(	INST_POP,			envPtr);
-	    loopIndex++;
+	    CompileWord(envPtr, tokenPtr, interp, i);
 	}
     }
 
-    /*
-     * Initialize the temporary var that holds the count of loop iterations.
-     */
-
-    TclEmitInstInt4(		INST_FOREACH_START4, infoIndex,	envPtr);
-
-    /*
-     * Top of loop code: assign each loop variable and check whether
-     * to terminate the loop.
-     */
-
-    ExceptionRangeTarget(envPtr, range, continueOffset);
-    TclEmitInstInt4(		INST_FOREACH_STEP4, infoIndex,	envPtr);
-    TclEmitForwardJump(envPtr, TCL_FALSE_JUMP, &jumpFalseFixup);
-
+    TclEmitInstInt4(INST_FOREACH_START, infoIndex, envPtr);
+    
     /*
      * Inline compile the loop body.
      */
 
-    SetLineInformation(bodyIndex);
+    range = TclCreateExceptRange(LOOP_EXCEPTION_RANGE, envPtr);
+
     ExceptionRangeStarts(envPtr, range);
-    CompileBody(envPtr, bodyTokenPtr, interp);
+    BODY(bodyTokenPtr, numWords - 1);
     ExceptionRangeEnds(envPtr, range);
-    envPtr->currStackDepth = savedStackDepth + 1;
-    TclEmitOpcode(		INST_POP,			envPtr);
-
-    /*
-     * Jump back to the test at the top of the loop. Generate a 4 byte jump if
-     * the distance to the test is > 120 bytes. This is conservative and
-     * ensures that we won't have to replace this jump if we later need to
-     * replace the ifFalse jump with a 4 byte jump.
-     */
-
-    jumpBackOffset = CurrentOffset(envPtr);
-    jumpBackDist = jumpBackOffset-envPtr->exceptArrayPtr[range].continueOffset;
-    if (jumpBackDist > 120) {
-	TclEmitInstInt4(INST_JUMP4, -jumpBackDist, envPtr);
+    
+    if (collect == TCL_EACH_COLLECT) {
+	TclEmitOpcode(INST_LMAP_COLLECT, envPtr);
     } else {
-	TclEmitInstInt1(INST_JUMP1, -jumpBackDist, envPtr);
+	TclEmitOpcode(		INST_POP,			envPtr);
     }
 
     /*
-     * Fix the target of the jump after the foreach_step test.
+     * Bottom of loop code: assign each loop variable and check whether
+     * to terminate the loop. Set the loop's break target. 
      */
 
-    if (TclFixupForwardJumpToHere(envPtr, &jumpFalseFixup, 127)) {
-	/*
-	 * Update the loop body's starting PC offset since it moved down.
-	 */
-
-	envPtr->exceptArrayPtr[range].codeOffset += 3;
-
-	/*
-	 * Update the jump back to the test at the top of the loop since it
-	 * also moved down 3 bytes.
-	 */
-
-	jumpBackOffset += 3;
-	jumpPc = (envPtr->codeStart + jumpBackOffset);
-	jumpBackDist += 3;
-	if (jumpBackDist > 120) {
-	    TclUpdateInstInt4AtPc(INST_JUMP4, -jumpBackDist, jumpPc);
-	} else {
-	    TclUpdateInstInt1AtPc(INST_JUMP1, -jumpBackDist, jumpPc);
-	}
-    }
+    ExceptionRangeTarget(envPtr, range, continueOffset);
+    TclEmitOpcode(INST_FOREACH_STEP, envPtr);
+    ExceptionRangeTarget(envPtr, range, breakOffset);
+    TclFinalizeLoopExceptionRange(envPtr, range);
+    TclEmitOpcode(INST_FOREACH_END, envPtr);
+    TclAdjustStackDepth(-(numLists+2), envPtr);
 
     /*
-     * Set the loop's break target.
+     * Set the jumpback distance from INST_FOREACH_STEP to the start of the
+     * body's code. Misuse loopCtTemp for storing the jump size.
      */
-
-    ExceptionRangeTarget(envPtr, range, breakOffset);
+    
+    jumpBackOffset = envPtr->exceptArrayPtr[range].continueOffset -
+	    envPtr->exceptArrayPtr[range].codeOffset;
+    infoPtr->loopCtTemp = -jumpBackOffset;
 
     /*
-     * The foreach command's result is an empty string.
+     * The command's result is an empty string if not collecting. If
+     * collecting, it is automatically left on stack after FOREACH_END.
      */
 
-    envPtr->currStackDepth = savedStackDepth;
-    PushLiteral(envPtr, "", 0);
-    envPtr->currStackDepth = savedStackDepth + 1;
-
-  done:
-    for (loopIndex = 0;  loopIndex < numLists;  loopIndex++) {
-	if (varvList[loopIndex] != NULL) {
-	    ckfree(varvList[loopIndex]);
+    if (collect != TCL_EACH_COLLECT) {
+	PushStringLiteral(envPtr, "");
+    }
+    
+    done:
+    if (code == TCL_ERROR) {
+	if (infoPtr) {
+	    FreeForeachInfo(infoPtr);
 	}
     }
-    TclStackFree(interp, (void *)varvList);
-    TclStackFree(interp, varcList);
+    if (varListObj) {
+	Tcl_DecrRefCount(varListObj);
+    }
     return code;
 }
 
@@ -2250,10 +2804,10 @@ FreeForeachInfo(
 /*
  *----------------------------------------------------------------------
  *
- * PrintForeachInfo --
+ * PrintForeachInfo, DisassembleForeachInfo --
  *
- *	Function to write a human-readable representation of a ForeachInfo
- *	structure to stdout for debugging.
+ *	Functions to write a human-readable or script-readablerepresentation
+ *	of a ForeachInfo structure to a Tcl_Obj for debugging.
  *
  * Results:
  *	None.
@@ -2303,989 +2857,141 @@ PrintForeachInfo(
 	Tcl_AppendToObj(appendObj, "]", -1);
     }
 }
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileGlobalCmd --
- *
- *	Procedure called to compile the "global" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "global" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileGlobalCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
-{
-    Tcl_Token *varTokenPtr;
-    int localIndex, numWords, i;
-    DefineLineInformation;	/* TIP #280 */
-
-    numWords = parsePtr->numWords;
-    if (numWords < 2) {
-	return TCL_ERROR;
-    }
-
-    /*
-     * 'global' has no effect outside of proc bodies; handle that at runtime
-     */
-
-    if (envPtr->procPtr == NULL) {
-	return TCL_ERROR;
-    }
-
-    /*
-     * Push the namespace
-     */
-
-    PushLiteral(envPtr, "::", 2);
-
-    /*
-     * Loop over the variables.
-     */
-
-    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
-    for (i=2; i<=numWords; varTokenPtr = TokenAfter(varTokenPtr),i++) {
-	localIndex = IndexTailVarIfKnown(interp, varTokenPtr, envPtr);
-
-	if (localIndex < 0) {
-	    return TCL_ERROR;
-	}
-
-	CompileWord(envPtr, varTokenPtr, interp, 1);
-	TclEmitInstInt4(	INST_NSUPVAR, localIndex,	envPtr);
-    }
-
-    /*
-     * Pop the namespace, and set the result to empty
-     */
-
-    TclEmitOpcode(		INST_POP,			envPtr);
-    PushLiteral(envPtr, "", 0);
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileIfCmd --
- *
- *	Procedure called to compile the "if" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "if" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileIfCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
-{
-    JumpFixupArray jumpFalseFixupArray;
-				/* Used to fix the ifFalse jump after each
-				 * test when its target PC is determined. */
-    JumpFixupArray jumpEndFixupArray;
-				/* Used to fix the jump after each "then" body
-				 * to the end of the "if" when that PC is
-				 * determined. */
-    Tcl_Token *tokenPtr, *testTokenPtr;
-    int jumpIndex = 0;		/* Avoid compiler warning. */
-    int jumpFalseDist, numWords, wordIdx, numBytes, j, code;
-    const char *word;
-    int savedStackDepth = envPtr->currStackDepth;
-				/* Saved stack depth at the start of the first
-				 * test; the envPtr current depth is restored
-				 * to this value at the start of each test. */
-    int realCond = 1;		/* Set to 0 for static conditions:
-				 * "if 0 {..}" */
-    int boolVal;		/* Value of static condition. */
-    int compileScripts = 1;
-    DefineLineInformation;	/* TIP #280 */
-
-    /*
-     * Only compile the "if" command if all arguments are simple words, in
-     * order to insure correct substitution [Bug 219166]
-     */
-
-    tokenPtr = parsePtr->tokenPtr;
-    wordIdx = 0;
-    numWords = parsePtr->numWords;
-
-    for (wordIdx = 0; wordIdx < numWords; wordIdx++) {
-	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	    return TCL_ERROR;
-	}
-	tokenPtr = TokenAfter(tokenPtr);
-    }
-
-    TclInitJumpFixupArray(&jumpFalseFixupArray);
-    TclInitJumpFixupArray(&jumpEndFixupArray);
-    code = TCL_OK;
-
-    /*
-     * Each iteration of this loop compiles one "if expr ?then? body" or
-     * "elseif expr ?then? body" clause.
-     */
-
-    tokenPtr = parsePtr->tokenPtr;
-    wordIdx = 0;
-    while (wordIdx < numWords) {
-	/*
-	 * Stop looping if the token isn't "if" or "elseif".
-	 */
-
-	word = tokenPtr[1].start;
-	numBytes = tokenPtr[1].size;
-	if ((tokenPtr == parsePtr->tokenPtr)
-		|| ((numBytes == 6) && (strncmp(word, "elseif", 6) == 0))) {
-	    tokenPtr = TokenAfter(tokenPtr);
-	    wordIdx++;
-	} else {
-	    break;
-	}
-	if (wordIdx >= numWords) {
-	    code = TCL_ERROR;
-	    goto done;
-	}
-
-	/*
-	 * Compile the test expression then emit the conditional jump around
-	 * the "then" part.
-	 */
-
-	envPtr->currStackDepth = savedStackDepth;
-	testTokenPtr = tokenPtr;
-
-	if (realCond) {
-	    /*
-	     * Find out if the condition is a constant.
-	     */
-
-	    Tcl_Obj *boolObj = Tcl_NewStringObj(testTokenPtr[1].start,
-		    testTokenPtr[1].size);
-
-	    Tcl_IncrRefCount(boolObj);
-	    code = Tcl_GetBooleanFromObj(NULL, boolObj, &boolVal);
-	    TclDecrRefCount(boolObj);
-	    if (code == TCL_OK) {
-		/*
-		 * A static condition.
-		 */
-
-		realCond = 0;
-		if (!boolVal) {
-		    compileScripts = 0;
-		}
-	    } else {
-		SetLineInformation(wordIdx);
-		Tcl_ResetResult(interp);
-		TclCompileExprWords(interp, testTokenPtr, 1, envPtr);
-		if (jumpFalseFixupArray.next >= jumpFalseFixupArray.end) {
-		    TclExpandJumpFixupArray(&jumpFalseFixupArray);
-		}
-		jumpIndex = jumpFalseFixupArray.next;
-		jumpFalseFixupArray.next++;
-		TclEmitForwardJump(envPtr, TCL_FALSE_JUMP,
-			jumpFalseFixupArray.fixup+jumpIndex);
-	    }
-	    code = TCL_OK;
-	}
-
-	/*
-	 * Skip over the optional "then" before the then clause.
-	 */
-
-	tokenPtr = TokenAfter(testTokenPtr);
-	wordIdx++;
-	if (wordIdx >= numWords) {
-	    code = TCL_ERROR;
-	    goto done;
-	}
-	if (tokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
-	    word = tokenPtr[1].start;
-	    numBytes = tokenPtr[1].size;
-	    if ((numBytes == 4) && (strncmp(word, "then", 4) == 0)) {
-		tokenPtr = TokenAfter(tokenPtr);
-		wordIdx++;
-		if (wordIdx >= numWords) {
-		    code = TCL_ERROR;
-		    goto done;
-		}
-	    }
-	}
-
-	/*
-	 * Compile the "then" command body.
-	 */
-
-	if (compileScripts) {
-	    SetLineInformation(wordIdx);
-	    envPtr->currStackDepth = savedStackDepth;
-	    CompileBody(envPtr, tokenPtr, interp);
-	}
-
-	if (realCond) {
-	    /*
-	     * Jump to the end of the "if" command. Both jumpFalseFixupArray
-	     * and jumpEndFixupArray are indexed by "jumpIndex".
-	     */
-
-	    if (jumpEndFixupArray.next >= jumpEndFixupArray.end) {
-		TclExpandJumpFixupArray(&jumpEndFixupArray);
-	    }
-	    jumpEndFixupArray.next++;
-	    TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP,
-		    jumpEndFixupArray.fixup+jumpIndex);
-
-	    /*
-	     * Fix the target of the jumpFalse after the test. Generate a 4
-	     * byte jump if the distance is > 120 bytes. This is conservative,
-	     * and ensures that we won't have to replace this jump if we later
-	     * also need to replace the proceeding jump to the end of the "if"
-	     * with a 4 byte jump.
-	     */
-
-	    if (TclFixupForwardJumpToHere(envPtr,
-		    jumpFalseFixupArray.fixup+jumpIndex, 120)) {
-		/*
-		 * Adjust the code offset for the proceeding jump to the end
-		 * of the "if" command.
-		 */
-
-		jumpEndFixupArray.fixup[jumpIndex].codeOffset += 3;
-	    }
-	} else if (boolVal) {
-	    /*
-	     * We were processing an "if 1 {...}"; stop compiling scripts.
-	     */
-
-	    compileScripts = 0;
-	} else {
-	    /*
-	     * We were processing an "if 0 {...}"; reset so that the rest
-	     * (elseif, else) is compiled correctly.
-	     */
-
-	    realCond = 1;
-	    compileScripts = 1;
-	}
-
-	tokenPtr = TokenAfter(tokenPtr);
-	wordIdx++;
-    }
-
-    /*
-     * Restore the current stack depth in the environment; the "else" clause
-     * (or its default) will add 1 to this.
-     */
-
-    envPtr->currStackDepth = savedStackDepth;
-
-    /*
-     * Check for the optional else clause. Do not compile anything if this was
-     * an "if 1 {...}" case.
-     */
-
-    if ((wordIdx < numWords) && (tokenPtr->type == TCL_TOKEN_SIMPLE_WORD)) {
-	/*
-	 * There is an else clause. Skip over the optional "else" word.
-	 */
-
-	word = tokenPtr[1].start;
-	numBytes = tokenPtr[1].size;
-	if ((numBytes == 4) && (strncmp(word, "else", 4) == 0)) {
-	    tokenPtr = TokenAfter(tokenPtr);
-	    wordIdx++;
-	    if (wordIdx >= numWords) {
-		code = TCL_ERROR;
-		goto done;
-	    }
-	}
-
-	if (compileScripts) {
-	    /*
-	     * Compile the else command body.
-	     */
-
-	    SetLineInformation(wordIdx);
-	    CompileBody(envPtr, tokenPtr, interp);
-	}
-
-	/*
-	 * Make sure there are no words after the else clause.
-	 */
-
-	wordIdx++;
-	if (wordIdx < numWords) {
-	    code = TCL_ERROR;
-	    goto done;
-	}
-    } else {
-	/*
-	 * No else clause: the "if" command's result is an empty string.
-	 */
-
-	if (compileScripts) {
-	    PushLiteral(envPtr, "", 0);
-	}
-    }
-
-    /*
-     * Fix the unconditional jumps to the end of the "if" command.
-     */
-
-    for (j = jumpEndFixupArray.next;  j > 0;  j--) {
-	jumpIndex = (j - 1);	/* i.e. process the closest jump first. */
-	if (TclFixupForwardJumpToHere(envPtr,
-		jumpEndFixupArray.fixup+jumpIndex, 127)) {
-	    /*
-	     * Adjust the immediately preceeding "ifFalse" jump. We moved it's
-	     * target (just after this jump) down three bytes.
-	     */
-
-	    unsigned char *ifFalsePc = envPtr->codeStart
-		    + jumpFalseFixupArray.fixup[jumpIndex].codeOffset;
-	    unsigned char opCode = *ifFalsePc;
-
-	    if (opCode == INST_JUMP_FALSE1) {
-		jumpFalseDist = TclGetInt1AtPtr(ifFalsePc + 1);
-		jumpFalseDist += 3;
-		TclStoreInt1AtPtr(jumpFalseDist, (ifFalsePc + 1));
-	    } else if (opCode == INST_JUMP_FALSE4) {
-		jumpFalseDist = TclGetInt4AtPtr(ifFalsePc + 1);
-		jumpFalseDist += 3;
-		TclStoreInt4AtPtr(jumpFalseDist, (ifFalsePc + 1));
-	    } else {
-		Tcl_Panic("TclCompileIfCmd: unexpected opcode \"%d\" updating ifFalse jump", (int) opCode);
-	    }
-	}
-    }
-
-    /*
-     * Free the jumpFixupArray array if malloc'ed storage was used.
-     */
-
-  done:
-    envPtr->currStackDepth = savedStackDepth + 1;
-    TclFreeJumpFixupArray(&jumpFalseFixupArray);
-    TclFreeJumpFixupArray(&jumpEndFixupArray);
-    return code;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileIncrCmd --
- *
- *	Procedure called to compile the "incr" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "incr" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
 
-int
-TclCompileIncrCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
+static void
+PrintNewForeachInfo(
+    ClientData clientData,
+    Tcl_Obj *appendObj,
+    ByteCode *codePtr,
+    unsigned int pcOffset)
 {
-    Tcl_Token *varTokenPtr, *incrTokenPtr;
-    int simpleVarName, isScalar, localIndex, haveImmValue, immValue;
-    DefineLineInformation;	/* TIP #280 */
-
-    if ((parsePtr->numWords != 2) && (parsePtr->numWords != 3)) {
-	return TCL_ERROR;
-    }
-
-    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
-
-    PushVarNameWord(interp, varTokenPtr, envPtr, TCL_NO_LARGE_INDEX,
-	    &localIndex, &simpleVarName, &isScalar, 1);
-
-    /*
-     * If an increment is given, push it, but see first if it's a small
-     * integer.
-     */
-
-    haveImmValue = 0;
-    immValue = 1;
-    if (parsePtr->numWords == 3) {
-	incrTokenPtr = TokenAfter(varTokenPtr);
-	if (incrTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
-	    const char *word = incrTokenPtr[1].start;
-	    int numBytes = incrTokenPtr[1].size;
-	    int code;
-	    Tcl_Obj *intObj = Tcl_NewStringObj(word, numBytes);
-
-	    Tcl_IncrRefCount(intObj);
-	    code = TclGetIntFromObj(NULL, intObj, &immValue);
-	    TclDecrRefCount(intObj);
-	    if ((code == TCL_OK) && (-127 <= immValue) && (immValue <= 127)) {
-		haveImmValue = 1;
-	    }
-	    if (!haveImmValue) {
-		PushLiteral(envPtr, word, numBytes);
-	    }
-	} else {
-	    SetLineInformation(2);
-	    CompileTokens(envPtr, incrTokenPtr, interp);
-	}
-    } else {			/* No incr amount given so use 1. */
-	haveImmValue = 1;
-    }
-
-    /*
-     * Emit the instruction to increment the variable.
-     */
+    register ForeachInfo *infoPtr = clientData;
+    register ForeachVarList *varsPtr;
+    int i, j;
 
-    if (!simpleVarName) {
-	if (haveImmValue) {
-	    TclEmitInstInt1(	INST_INCR_STK_IMM, immValue,	envPtr);
-	} else {
-	    TclEmitOpcode(	INST_INCR_STK,			envPtr);
-	}
-    } else if (isScalar) {	/* Simple scalar variable. */
-	if (localIndex >= 0) {
-	    if (haveImmValue) {
-		TclEmitInstInt1(INST_INCR_SCALAR1_IMM, localIndex, envPtr);
-		TclEmitInt1(immValue, envPtr);
-	    } else {
-		TclEmitInstInt1(INST_INCR_SCALAR1, localIndex,	envPtr);
-	    }
-	} else {
-	    if (haveImmValue) {
-		TclEmitInstInt1(INST_INCR_SCALAR_STK_IMM, immValue, envPtr);
-	    } else {
-		TclEmitOpcode(	INST_INCR_SCALAR_STK,		envPtr);
-	    }
+    Tcl_AppendPrintfToObj(appendObj, "jumpOffset=%+d, vars=",
+	    infoPtr->loopCtTemp);
+    for (i=0 ; i<infoPtr->numLists ; i++) {
+	if (i) {
+	    Tcl_AppendToObj(appendObj, ",", -1);
 	}
-    } else {			/* Simple array variable. */
-	if (localIndex >= 0) {
-	    if (haveImmValue) {
-		TclEmitInstInt1(INST_INCR_ARRAY1_IMM, localIndex, envPtr);
-		TclEmitInt1(immValue, envPtr);
-	    } else {
-		TclEmitInstInt1(INST_INCR_ARRAY1, localIndex,	envPtr);
-	    }
-	} else {
-	    if (haveImmValue) {
-		TclEmitInstInt1(INST_INCR_ARRAY_STK_IMM, immValue, envPtr);
-	    } else {
-		TclEmitOpcode(	INST_INCR_ARRAY_STK,		envPtr);
+	Tcl_AppendToObj(appendObj, "[", -1);
+	varsPtr = infoPtr->varLists[i];
+	for (j=0 ; j<varsPtr->numVars ; j++) {
+	    if (j) {
+		Tcl_AppendToObj(appendObj, ",", -1);
 	    }
+	    Tcl_AppendPrintfToObj(appendObj, "%%v%u",
+		    (unsigned) varsPtr->varIndexes[j]);
 	}
+	Tcl_AppendToObj(appendObj, "]", -1);
     }
-
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileInfoExistsCmd --
- *
- *	Procedure called to compile the "info exists" subcommand.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "info exists"
- *	subcommand at runtime.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileInfoExistsCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
-{
-    Tcl_Token *tokenPtr;
-    int isScalar, simpleVarName, localIndex;
-    DefineLineInformation;	/* TIP #280 */
-
-    if (parsePtr->numWords != 2) {
-	return TCL_ERROR;
-    }
-
-    /*
-     * Decide if we can use a frame slot for the var/array name or if we need
-     * to emit code to compute and push the name at runtime. We use a frame
-     * slot (entry in the array of local vars) if we are compiling a procedure
-     * body and if the name is simple text that does not include namespace
-     * qualifiers.
-     */
-
-    tokenPtr = TokenAfter(parsePtr->tokenPtr);
-    PushVarNameWord(interp, tokenPtr, envPtr, 0, &localIndex,
-	    &simpleVarName, &isScalar, 1);
-
-    /*
-     * Emit instruction to check the variable for existence.
-     */
-
-    if (!simpleVarName) {
-	TclEmitOpcode(		INST_EXIST_STK,			envPtr);
-    } else if (isScalar) {
-	if (localIndex < 0) {
-	    TclEmitOpcode(	INST_EXIST_STK,			envPtr);
-	} else {
-	    TclEmitInstInt4(	INST_EXIST_SCALAR, localIndex,	envPtr);
-	}
-    } else {
-	if (localIndex < 0) {
-	    TclEmitOpcode(	INST_EXIST_ARRAY_STK,		envPtr);
-	} else {
-	    TclEmitInstInt4(	INST_EXIST_ARRAY, localIndex,	envPtr);
-	}
-    }
-
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileLappendCmd --
- *
- *	Procedure called to compile the "lappend" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "lappend" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileLappendCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
-{
-    Tcl_Token *varTokenPtr;
-    int simpleVarName, isScalar, localIndex, numWords;
-    DefineLineInformation;	/* TIP #280 */
-
-    /*
-     * If we're not in a procedure, don't compile.
-     */
-
-    if (envPtr->procPtr == NULL) {
-	return TCL_ERROR;
-    }
-
-    numWords = parsePtr->numWords;
-    if (numWords == 1) {
-	return TCL_ERROR;
-    }
-    if (numWords != 3) {
-	/*
-	 * LAPPEND instructions currently only handle one value appends.
-	 */
-
-	return TCL_ERROR;
-    }
-
-    /*
-     * Decide if we can use a frame slot for the var/array name or if we
-     * need to emit code to compute and push the name at runtime. We use a
-     * frame slot (entry in the array of local vars) if we are compiling a
-     * procedure body and if the name is simple text that does not include
-     * namespace qualifiers.
-     */
-
-    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
-
-    PushVarNameWord(interp, varTokenPtr, envPtr, 0,
-	    &localIndex, &simpleVarName, &isScalar, 1);
-
-    /*
-     * If we are doing an assignment, push the new value. In the no values
-     * case, create an empty object.
-     */
-
-    if (numWords > 2) {
-	Tcl_Token *valueTokenPtr = TokenAfter(varTokenPtr);
-
-	CompileWord(envPtr, valueTokenPtr, interp, 2);
-    }
-
-    /*
-     * Emit instructions to set/get the variable.
-     */
-
-    /*
-     * The *_STK opcodes should be refactored to make better use of existing
-     * LOAD/STORE instructions.
-     */
-
-    if (!simpleVarName) {
-	TclEmitOpcode(		INST_LAPPEND_STK,		envPtr);
-    } else if (isScalar) {
-	if (localIndex < 0) {
-	    TclEmitOpcode(	INST_LAPPEND_STK,		envPtr);
-	} else {
-	    Emit14Inst(		INST_LAPPEND_SCALAR, localIndex, envPtr);
-	}
-    } else {
-	if (localIndex < 0) {
-	    TclEmitOpcode(	INST_LAPPEND_ARRAY_STK,		envPtr);
-	} else {
-	    Emit14Inst(		INST_LAPPEND_ARRAY, localIndex,	envPtr);
-	}
-    }
-
-    return TCL_OK;
 }
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileLassignCmd --
- *
- *	Procedure called to compile the "lassign" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "lassign" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
 
-int
-TclCompileLassignCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
+static void
+DisassembleForeachInfo(
+    ClientData clientData,
+    Tcl_Obj *dictObj,
+    ByteCode *codePtr,
+    unsigned int pcOffset)
 {
-    Tcl_Token *tokenPtr;
-    int simpleVarName, isScalar, localIndex, numWords, idx;
-    DefineLineInformation;	/* TIP #280 */
-
-    numWords = parsePtr->numWords;
+    register ForeachInfo *infoPtr = clientData;
+    register ForeachVarList *varsPtr;
+    int i, j;
+    Tcl_Obj *objPtr, *innerPtr;
 
     /*
-     * Check for command syntax error, but we'll punt that to runtime.
+     * Data stores.
      */
 
-    if (numWords < 3) {
-	return TCL_ERROR;
+    objPtr = Tcl_NewObj();
+    for (i=0 ; i<infoPtr->numLists ; i++) {
+	Tcl_ListObjAppendElement(NULL, objPtr,
+		Tcl_NewIntObj(infoPtr->firstValueTemp + i));
     }
+    Tcl_DictObjPut(NULL, dictObj, Tcl_NewStringObj("data", -1), objPtr);
 
     /*
-     * Generate code to push list being taken apart by [lassign].
+     * Loop counter.
      */
 
-    tokenPtr = TokenAfter(parsePtr->tokenPtr);
-    CompileWord(envPtr, tokenPtr, interp, 1);
+    Tcl_DictObjPut(NULL, dictObj, Tcl_NewStringObj("loop", -1),
+	   Tcl_NewIntObj(infoPtr->loopCtTemp));
 
     /*
-     * Generate code to assign values from the list to variables.
+     * Assignment targets.
      */
 
-    for (idx=0 ; idx<numWords-2 ; idx++) {
-	tokenPtr = TokenAfter(tokenPtr);
-
-	/*
-	 * Generate the next variable name.
-	 */
-
-	PushVarNameWord(interp, tokenPtr, envPtr, 0, &localIndex,
-		&simpleVarName, &isScalar, idx+2);
-
-	/*
-	 * Emit instructions to get the idx'th item out of the list value on
-	 * the stack and assign it to the variable.
-	 */
-
-	if (!simpleVarName) {
-	    TclEmitInstInt4(	INST_OVER, 1,			envPtr);
-	    TclEmitInstInt4(	INST_LIST_INDEX_IMM, idx,	envPtr);
-	    TclEmitOpcode(	INST_STORE_STK,			envPtr);
-	    TclEmitOpcode(	INST_POP,			envPtr);
-	} else if (isScalar) {
-	    if (localIndex >= 0) {
-		TclEmitOpcode(	INST_DUP,			envPtr);
-		TclEmitInstInt4(INST_LIST_INDEX_IMM, idx,	envPtr);
-		Emit14Inst(	INST_STORE_SCALAR, localIndex,	envPtr);
-		TclEmitOpcode(	INST_POP,			envPtr);
-	    } else {
-		TclEmitInstInt4(INST_OVER, 1,			envPtr);
-		TclEmitInstInt4(INST_LIST_INDEX_IMM, idx,	envPtr);
-		TclEmitOpcode(	INST_STORE_SCALAR_STK,		envPtr);
-		TclEmitOpcode(	INST_POP,			envPtr);
-	    }
-	} else {
-	    if (localIndex >= 0) {
-		TclEmitInstInt4(INST_OVER, 1,			envPtr);
-		TclEmitInstInt4(INST_LIST_INDEX_IMM, idx,	envPtr);
-		Emit14Inst(	INST_STORE_ARRAY, localIndex,	envPtr);
-		TclEmitOpcode(	INST_POP,			envPtr);
-	    } else {
-		TclEmitInstInt4(INST_OVER, 2,			envPtr);
-		TclEmitInstInt4(INST_LIST_INDEX_IMM, idx,	envPtr);
-		TclEmitOpcode(	INST_STORE_ARRAY_STK,		envPtr);
-		TclEmitOpcode(	INST_POP,			envPtr);
-	    }
+    objPtr = Tcl_NewObj();
+    for (i=0 ; i<infoPtr->numLists ; i++) {
+	innerPtr = Tcl_NewObj();
+	varsPtr = infoPtr->varLists[i];
+	for (j=0 ; j<varsPtr->numVars ; j++) {
+	    Tcl_ListObjAppendElement(NULL, innerPtr,
+		    Tcl_NewIntObj(varsPtr->varIndexes[j]));
 	}
+	Tcl_ListObjAppendElement(NULL, objPtr, innerPtr);
     }
-
-    /*
-     * Generate code to leave the rest of the list on the stack.
-     */
-
-    TclEmitInstInt4(		INST_LIST_RANGE_IMM, idx,	envPtr);
-    TclEmitInt4(		-2 /* == "end" */,		envPtr);
-
-    return TCL_OK;
+    Tcl_DictObjPut(NULL, dictObj, Tcl_NewStringObj("assign", -1), objPtr);
 }
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileLindexCmd --
- *
- *	Procedure called to compile the "lindex" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "lindex" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
 
-int
-TclCompileLindexCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
+static void
+DisassembleNewForeachInfo(
+    ClientData clientData,
+    Tcl_Obj *dictObj,
+    ByteCode *codePtr,
+    unsigned int pcOffset)
 {
-    Tcl_Token *idxTokenPtr, *valTokenPtr;
-    int i, numWords = parsePtr->numWords;
-    DefineLineInformation;	/* TIP #280 */
-
-    /*
-     * Quit if too few args.
-     */
-
-    if (numWords <= 1) {
-	return TCL_ERROR;
-    }
-
-    valTokenPtr = TokenAfter(parsePtr->tokenPtr);
-    if (numWords != 3) {
-	goto emitComplexLindex;
-    }
-
-    idxTokenPtr = TokenAfter(valTokenPtr);
-    if (idxTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
-	Tcl_Obj *tmpObj;
-	int idx, result;
-
-	tmpObj = Tcl_NewStringObj(idxTokenPtr[1].start, idxTokenPtr[1].size);
-	result = TclGetIntFromObj(NULL, tmpObj, &idx);
-	if (result == TCL_OK) {
-	    if (idx < 0) {
-		result = TCL_ERROR;
-	    }
-	} else {
-	    result = TclGetIntForIndexM(NULL, tmpObj, -2, &idx);
-	    if (result == TCL_OK && idx > -2) {
-		result = TCL_ERROR;
-	    }
-	}
-	TclDecrRefCount(tmpObj);
-
-	if (result == TCL_OK) {
-	    /*
-	     * All checks have been completed, and we have exactly one of
-	     * these constructs:
-	     *	 lindex <arbitraryValue> <posInt>
-	     *	 lindex <arbitraryValue> end-<posInt>
-	     * This is best compiled as a push of the arbitrary value followed
-	     * by an "immediate lindex" which is the most efficient variety.
-	     */
-
-	    CompileWord(envPtr, valTokenPtr, interp, 1);
-	    TclEmitInstInt4(	INST_LIST_INDEX_IMM, idx,	envPtr);
-	    return TCL_OK;
-	}
-
-	/*
-	 * If the conversion failed or the value was negative, we just keep on
-	 * going with the more complex compilation.
-	 */
-    }
+    register ForeachInfo *infoPtr = clientData;
+    register ForeachVarList *varsPtr;
+    int i, j;
+    Tcl_Obj *objPtr, *innerPtr;
 
     /*
-     * Push the operands onto the stack.
+     * Jump offset.
      */
 
-  emitComplexLindex:
-    for (i=1 ; i<numWords ; i++) {
-	CompileWord(envPtr, valTokenPtr, interp, i);
-	valTokenPtr = TokenAfter(valTokenPtr);
-    }
+    Tcl_DictObjPut(NULL, dictObj, Tcl_NewStringObj("jumpOffset", -1),
+	   Tcl_NewIntObj(infoPtr->loopCtTemp));
 
     /*
-     * Emit INST_LIST_INDEX if objc==3, or INST_LIST_INDEX_MULTI if there are
-     * multiple index args.
+     * Assignment targets.
      */
 
-    if (numWords == 3) {
-	TclEmitOpcode(		INST_LIST_INDEX,		envPtr);
-    } else {
-	TclEmitInstInt4(	INST_LIST_INDEX_MULTI, numWords-1, envPtr);
-    }
-
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileListCmd --
- *
- *	Procedure called to compile the "list" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "list" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileListCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
-{
-    DefineLineInformation;	/* TIP #280 */
-    Tcl_Token *valueTokenPtr;
-    int i, numWords;
-
-    /*
-     * If we're not in a procedure, don't compile.
-     */
-
-    if (envPtr->procPtr == NULL) {
-	return TCL_ERROR;
-    }
-
-    if (parsePtr->numWords == 1) {
-	/*
-	 * [list] without arguments just pushes an empty object.
-	 */
-
-	PushLiteral(envPtr, "", 0);
-    } else {
-	/*
-	 * Push the all values onto the stack.
-	 */
-
-	numWords = parsePtr->numWords;
-	valueTokenPtr = TokenAfter(parsePtr->tokenPtr);
-	for (i = 1; i < numWords; i++) {
-	    CompileWord(envPtr, valueTokenPtr, interp, i);
-	    valueTokenPtr = TokenAfter(valueTokenPtr);
+    objPtr = Tcl_NewObj();
+    for (i=0 ; i<infoPtr->numLists ; i++) {
+	innerPtr = Tcl_NewObj();
+	varsPtr = infoPtr->varLists[i];
+	for (j=0 ; j<varsPtr->numVars ; j++) {
+	    Tcl_ListObjAppendElement(NULL, innerPtr,
+		    Tcl_NewIntObj(varsPtr->varIndexes[j]));
 	}
-	TclEmitInstInt4(	INST_LIST, numWords - 1,	envPtr);
+	Tcl_ListObjAppendElement(NULL, objPtr, innerPtr);
     }
-
-    return TCL_OK;
+    Tcl_DictObjPut(NULL, dictObj, Tcl_NewStringObj("assign", -1), objPtr);
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TclCompileLlengthCmd --
+ * TclCompileFormatCmd --
  *
- *	Procedure called to compile the "llength" command.
+ *	Procedure called to compile the "format" command. Handles cases that
+ *	can be done as constants or simple string concatenation only.
  *
  * Results:
  *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
  *	evaluation to runtime.
  *
  * Side effects:
- *	Instructions are added to envPtr to execute the "llength" command at
+ *	Instructions are added to envPtr to execute the "format" command at
  *	runtime.
  *
  *----------------------------------------------------------------------
  */
 
 int
-TclCompileLlengthCmd(
+TclCompileFormatCmd(
     Tcl_Interp *interp,		/* Used for error reporting. */
     Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
 				 * created by Tcl_ParseCommand. */
@@ -3293,1170 +2999,284 @@ TclCompileLlengthCmd(
 				 * compiled. */
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
-    Tcl_Token *varTokenPtr;
-    DefineLineInformation;	/* TIP #280 */
-
-    if (parsePtr->numWords != 2) {
-	return TCL_ERROR;
-    }
-    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
-
-    CompileWord(envPtr, varTokenPtr, interp, 1);
-    TclEmitOpcode(		INST_LIST_LENGTH,		envPtr);
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileLrangeCmd --
- *
- *	How to compile the "lrange" command. We only bother because we needed
- *	the opcode anyway for "lassign".
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileLrangeCmd(
-    Tcl_Interp *interp,		/* Tcl interpreter for context. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
-				 * command. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds the resulting instructions. */
-{
-    Tcl_Token *tokenPtr, *listTokenPtr;
     DefineLineInformation;	/* TIP #280 */
-    Tcl_Obj *tmpObj;
-    int idx1, idx2, result;
-
-    if (parsePtr->numWords != 4) {
-	return TCL_ERROR;
-    }
-    listTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    Tcl_Token *tokenPtr = parsePtr->tokenPtr;
+    Tcl_Obj **objv, *formatObj, *tmpObj;
+    char *bytes, *start;
+    int i, j, len;
 
     /*
-     * Parse the first index. Will only compile if it is constant and not an
-     * _integer_ less than zero (since we reserve negative indices here for
-     * end-relative indexing).
+     * Don't handle any guaranteed-error cases.
      */
 
-    tokenPtr = TokenAfter(listTokenPtr);
-    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
-    }
-    tmpObj = Tcl_NewStringObj(tokenPtr[1].start, tokenPtr[1].size);
-    result = TclGetIntFromObj(NULL, tmpObj, &idx1);
-    if (result == TCL_OK) {
-	if (idx1 < 0) {
-	    result = TCL_ERROR;
-	}
-    } else {
-	result = TclGetIntForIndexM(NULL, tmpObj, -2, &idx1);
-	if (result == TCL_OK && idx1 > -2) {
-	    result = TCL_ERROR;
-	}
-    }
-    TclDecrRefCount(tmpObj);
-    if (result != TCL_OK) {
+    if (parsePtr->numWords < 2) {
 	return TCL_ERROR;
     }
 
     /*
-     * Parse the second index. Will only compile if it is constant and not an
-     * _integer_ less than zero (since we reserve negative indices here for
-     * end-relative indexing).
+     * Check if the argument words are all compile-time-known literals; that's
+     * a case we can handle by compiling to a constant.
      */
 
+    formatObj = Tcl_NewObj();
+    Tcl_IncrRefCount(formatObj);
     tokenPtr = TokenAfter(tokenPtr);
-    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
-    }
-    tmpObj = Tcl_NewStringObj(tokenPtr[1].start, tokenPtr[1].size);
-    result = TclGetIntFromObj(NULL, tmpObj, &idx2);
-    if (result == TCL_OK) {
-	if (idx2 < 0) {
-	    result = TCL_ERROR;
-	}
-    } else {
-	result = TclGetIntForIndexM(NULL, tmpObj, -2, &idx2);
-	if (result == TCL_OK && idx2 > -2) {
-	    result = TCL_ERROR;
-	}
-    }
-    TclDecrRefCount(tmpObj);
-    if (result != TCL_OK) {
-	return TCL_ERROR;
-    }
-
-    /*
-     * Issue instructions. It's not safe to skip doing the LIST_RANGE, as
-     * we've not proved that the 'list' argument is really a list. Not that it
-     * is worth trying to do that given current knowledge.
-     */
-
-    CompileWord(envPtr, listTokenPtr, interp, 1);
-    TclEmitInstInt4(		INST_LIST_RANGE_IMM, idx1,	envPtr);
-    TclEmitInt4(		idx2,				envPtr);
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileLreplaceCmd --
- *
- *	How to compile the "lreplace" command. We only bother with the case
- *	where there are no elements to insert and where both the 'first' and
- *	'last' arguments are constant and one can be deterined to be at the
- *	end of the list. (This is the case that could also be written with
- *	"lrange".)
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileLreplaceCmd(
-    Tcl_Interp *interp,		/* Tcl interpreter for context. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
-				 * command. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds the resulting instructions. */
-{
-    Tcl_Token *tokenPtr, *listTokenPtr;
-    DefineLineInformation;	/* TIP #280 */
-    Tcl_Obj *tmpObj;
-    int idx1, idx2, result, guaranteedDropAll = 0;
-
-    if (parsePtr->numWords != 4) {
-	return TCL_ERROR;
-    }
-    listTokenPtr = TokenAfter(parsePtr->tokenPtr);
-
-    /*
-     * Parse the first index. Will only compile if it is constant and not an
-     * _integer_ less than zero (since we reserve negative indices here for
-     * end-relative indexing).
-     */
-
-    tokenPtr = TokenAfter(listTokenPtr);
-    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
-    }
-    tmpObj = Tcl_NewStringObj(tokenPtr[1].start, tokenPtr[1].size);
-    result = TclGetIntFromObj(NULL, tmpObj, &idx1);
-    if (result == TCL_OK) {
-	if (idx1 < 0) {
-	    result = TCL_ERROR;
-	}
-    } else {
-	result = TclGetIntForIndexM(NULL, tmpObj, -2, &idx1);
-	if (result == TCL_OK && idx1 > -2) {
-	    result = TCL_ERROR;
-	}
-    }
-    TclDecrRefCount(tmpObj);
-    if (result != TCL_OK) {
+    if (!TclWordKnownAtCompileTime(tokenPtr, formatObj)) {
+	Tcl_DecrRefCount(formatObj);
 	return TCL_ERROR;
     }
 
-    /*
-     * Parse the second index. Will only compile if it is constant and not an
-     * _integer_ less than zero (since we reserve negative indices here for
-     * end-relative indexing).
-     */
-
-    tokenPtr = TokenAfter(tokenPtr);
-    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	return TCL_ERROR;
-    }
-    tmpObj = Tcl_NewStringObj(tokenPtr[1].start, tokenPtr[1].size);
-    result = TclGetIntFromObj(NULL, tmpObj, &idx2);
-    if (result == TCL_OK) {
-	if (idx2 < 0) {
-	    result = TCL_ERROR;
-	}
-    } else {
-	result = TclGetIntForIndexM(NULL, tmpObj, -2, &idx2);
-	if (result == TCL_OK && idx2 > -2) {
-	    result = TCL_ERROR;
-	}
-    }
-    TclDecrRefCount(tmpObj);
-    if (result != TCL_OK) {
-	return TCL_ERROR;
-    }
-
-    /*
-     * Sanity check: can only issue when we're removing a range at one or
-     * other end of the list. If we're at one end or the other, convert the
-     * indices into the equivalent for an [lrange].
-     */
-
-    if (idx1 == 0) {
-	if (idx2 == -2) {
-	    guaranteedDropAll = 1;
-	}
-	idx1 = idx2 + 1;
-	idx2 = -2;
-    } else if (idx2 == -2) {
-	idx2 = idx1 - 1;
-	idx1 = 0;
-    } else {
-	return TCL_ERROR;
-    }
-
-    /*
-     * Issue instructions. It's not safe to skip doing the LIST_RANGE, as
-     * we've not proved that the 'list' argument is really a list. Not that it
-     * is worth trying to do that given current knowledge.
-     */
-
-    CompileWord(envPtr, listTokenPtr, interp, 1);
-    if (guaranteedDropAll) {
-	TclEmitOpcode(		INST_LIST_LENGTH,		envPtr);
-	TclEmitOpcode(		INST_POP,			envPtr);
-	PushLiteral(envPtr, "", 0);
-    } else {
-	TclEmitInstInt4(	INST_LIST_RANGE_IMM, idx1,	envPtr);
-	TclEmitInt4(		idx2,				envPtr);
-    }
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileLsetCmd --
- *
- *	Procedure called to compile the "lset" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "lset" command at
- *	runtime.
- *
- * The general template for execution of the "lset" command is:
- *	(1) Instructions to push the variable name, unless the variable is
- *	    local to the stack frame.
- *	(2) If the variable is an array element, instructions to push the
- *	    array element name.
- *	(3) Instructions to push each of zero or more "index" arguments to the
- *	    stack, followed with the "newValue" element.
- *	(4) Instructions to duplicate the variable name and/or array element
- *	    name onto the top of the stack, if either was pushed at steps (1)
- *	    and (2).
- *	(5) The appropriate INST_LOAD_* instruction to place the original
- *	    value of the list variable at top of stack.
- *	(6) At this point, the stack contains:
- *		varName? arrayElementName? index1 index2 ... newValue oldList
- *	    The compiler emits one of INST_LSET_FLAT or INST_LSET_LIST
- *	    according as whether there is exactly one index element (LIST) or
- *	    either zero or else two or more (FLAT). This instruction removes
- *	    everything from the stack except for the two names and pushes the
- *	    new value of the variable.
- *	(7) Finally, INST_STORE_* stores the new value in the variable and
- *	    cleans up the stack.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileLsetCmd(
-    Tcl_Interp *interp,		/* Tcl interpreter for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
-				 * command. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds the resulting instructions. */
-{
-    int tempDepth;		/* Depth used for emitting one part of the
-				 * code burst. */
-    Tcl_Token *varTokenPtr;	/* Pointer to the Tcl_Token representing the
-				 * parse of the variable name. */
-    int localIndex;		/* Index of var in local var table. */
-    int simpleVarName;		/* Flag == 1 if var name is simple. */
-    int isScalar;		/* Flag == 1 if scalar, 0 if array. */
-    int i;
-    DefineLineInformation;	/* TIP #280 */
-
-    /*
-     * Check argument count.
-     */
-
-    if (parsePtr->numWords < 3) {
-	/*
-	 * Fail at run time, not in compilation.
-	 */
-
-	return TCL_ERROR;
-    }
-
-    /*
-     * Decide if we can use a frame slot for the var/array name or if we need
-     * to emit code to compute and push the name at runtime. We use a frame
-     * slot (entry in the array of local vars) if we are compiling a procedure
-     * body and if the name is simple text that does not include namespace
-     * qualifiers.
-     */
-
-    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
-    PushVarNameWord(interp, varTokenPtr, envPtr, 0,
-	    &localIndex, &simpleVarName, &isScalar, 1);
-
-    /*
-     * Push the "index" args and the new element value.
-     */
-
-    for (i=2 ; i<parsePtr->numWords ; ++i) {
-	varTokenPtr = TokenAfter(varTokenPtr);
-	CompileWord(envPtr, varTokenPtr, interp, i);
-    }
-
-    /*
-     * Duplicate the variable name if it's been pushed.
-     */
-
-    if (!simpleVarName || localIndex < 0) {
-	if (!simpleVarName || isScalar) {
-	    tempDepth = parsePtr->numWords - 2;
-	} else {
-	    tempDepth = parsePtr->numWords - 1;
-	}
-	TclEmitInstInt4(	INST_OVER, tempDepth,		envPtr);
-    }
-
-    /*
-     * Duplicate an array index if one's been pushed.
-     */
-
-    if (simpleVarName && !isScalar) {
-	if (localIndex < 0) {
-	    tempDepth = parsePtr->numWords - 1;
-	} else {
-	    tempDepth = parsePtr->numWords - 2;
+    objv = ckalloc((parsePtr->numWords-2) * sizeof(Tcl_Obj *));
+    for (i=0 ; i+2 < parsePtr->numWords ; i++) {
+	tokenPtr = TokenAfter(tokenPtr);
+	objv[i] = Tcl_NewObj();
+	Tcl_IncrRefCount(objv[i]);
+	if (!TclWordKnownAtCompileTime(tokenPtr, objv[i])) {
+	    goto checkForStringConcatCase;
 	}
-	TclEmitInstInt4(	INST_OVER, tempDepth,		envPtr);
     }
 
     /*
-     * Emit code to load the variable's value.
+     * Everything is a literal, so the result is constant too (or an error if
+     * the format is broken). Do the format now.
      */
 
-    if (!simpleVarName) {
-	TclEmitOpcode(		INST_LOAD_STK,			envPtr);
-    } else if (isScalar) {
-	if (localIndex < 0) {
-	    TclEmitOpcode(	INST_LOAD_SCALAR_STK,		envPtr);
-	} else {
-	    Emit14Inst(		INST_LOAD_SCALAR, localIndex,	envPtr);
-	}
-    } else {
-	if (localIndex < 0) {
-	    TclEmitOpcode(	INST_LOAD_ARRAY_STK,		envPtr);
-	} else {
-	    Emit14Inst(		INST_LOAD_ARRAY, localIndex,	envPtr);
-	}
+    tmpObj = Tcl_Format(interp, Tcl_GetString(formatObj),
+	    parsePtr->numWords-2, objv);
+    for (; --i>=0 ;) {
+	Tcl_DecrRefCount(objv[i]);
     }
-
-    /*
-     * Emit the correct variety of 'lset' instruction.
-     */
-
-    if (parsePtr->numWords == 4) {
-	TclEmitOpcode(		INST_LSET_LIST,			envPtr);
-    } else {
-	TclEmitInstInt4(	INST_LSET_FLAT, parsePtr->numWords-1, envPtr);
+    ckfree(objv);
+    Tcl_DecrRefCount(formatObj);
+    if (tmpObj == NULL) {
+	TclCompileSyntaxError(interp, envPtr);
+	return TCL_OK;
     }
 
     /*
-     * Emit code to put the value back in the variable.
+     * Not an error, always a constant result, so just push the result as a
+     * literal. Job done.
      */
 
-    if (!simpleVarName) {
-	TclEmitOpcode(		INST_STORE_STK,			envPtr);
-    } else if (isScalar) {
-	if (localIndex < 0) {
-	    TclEmitOpcode(	INST_STORE_SCALAR_STK,		envPtr);
-	} else {
-	    Emit14Inst(		INST_STORE_SCALAR, localIndex,	envPtr);
-	}
-    } else {
-	if (localIndex < 0) {
-	    TclEmitOpcode(	INST_STORE_ARRAY_STK,		envPtr);
-	} else {
-	    Emit14Inst(		INST_STORE_ARRAY, localIndex,	envPtr);
-	}
-    }
-
+    bytes = Tcl_GetStringFromObj(tmpObj, &len);
+    PushLiteral(envPtr, bytes, len);
+    Tcl_DecrRefCount(tmpObj);
     return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileNamespaceCmd --
- *
- *	Procedure called to compile the "namespace" command; currently, only
- *	the subcommand "namespace upvar" is compiled to bytecodes, and then
- *	only inside a procedure(-like) context.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "namespace upvar"
- *	command at runtime.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileNamespaceUpvarCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
-{
-    Tcl_Token *tokenPtr, *otherTokenPtr, *localTokenPtr;
-    int simpleVarName, isScalar, localIndex, numWords, i;
-    DefineLineInformation;	/* TIP #280 */
-
-    if (envPtr->procPtr == NULL) {
-	return TCL_ERROR;
-    }
 
+  checkForStringConcatCase:
     /*
-     * Only compile [namespace upvar ...]: needs an even number of args, >=4
+     * See if we can generate a sequence of things to concatenate. This
+     * requires that all the % sequences be %s or %%, as everything else is
+     * sufficiently complex that we don't bother.
+     *
+     * First, get the state of the system relatively sensible (cleaning up
+     * after our attempt to spot a literal).
      */
 
-    numWords = parsePtr->numWords;
-    if ((numWords % 2) || (numWords < 4)) {
-	return TCL_ERROR;
+    for (; i>=0 ; i--) {
+	Tcl_DecrRefCount(objv[i]);
     }
-
-    /*
-     * Push the namespace
-     */
-
+    ckfree(objv);
     tokenPtr = TokenAfter(parsePtr->tokenPtr);
-    CompileWord(envPtr, tokenPtr, interp, 1);
+    tokenPtr = TokenAfter(tokenPtr);
+    i = 0;
 
     /*
-     * Loop over the (otherVar, thisVar) pairs. If any of the thisVar is not a
-     * local variable, return an error so that the non-compiled command will
-     * be called at runtime.
+     * Now scan through and check for non-%s and non-%% substitutions.
      */
 
-    localTokenPtr = tokenPtr;
-    for (i=3; i<=numWords; i+=2) {
-	otherTokenPtr = TokenAfter(localTokenPtr);
-	localTokenPtr = TokenAfter(otherTokenPtr);
-
-	CompileWord(envPtr, otherTokenPtr, interp, 1);
-	PushVarNameWord(interp, localTokenPtr, envPtr, 0,
-		&localIndex, &simpleVarName, &isScalar, 1);
-
-	if ((localIndex < 0) || !isScalar) {
+    for (bytes = Tcl_GetString(formatObj) ; *bytes ; bytes++) {
+	if (*bytes == '%') {
+	    bytes++;
+	    if (*bytes == 's') {
+		i++;
+		continue;
+	    } else if (*bytes == '%') {
+		continue;
+	    }
+	    Tcl_DecrRefCount(formatObj);
 	    return TCL_ERROR;
 	}
-	TclEmitInstInt4(	INST_NSUPVAR, localIndex,	envPtr);
-    }
-
-    /*
-     * Pop the namespace, and set the result to empty
-     */
-
-    TclEmitOpcode(		INST_POP,			envPtr);
-    PushLiteral(envPtr, "", 0);
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileRegexpCmd --
- *
- *	Procedure called to compile the "regexp" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "regexp" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileRegexpCmd(
-    Tcl_Interp *interp,		/* Tcl interpreter for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
-				 * command. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds the resulting instructions. */
-{
-    Tcl_Token *varTokenPtr;	/* Pointer to the Tcl_Token representing the
-				 * parse of the RE or string. */
-    int i, len, nocase, exact, sawLast, simple;
-    const char *str;
-    DefineLineInformation;	/* TIP #280 */
-
-    /*
-     * We are only interested in compiling simple regexp cases. Currently
-     * supported compile cases are:
-     *   regexp ?-nocase? ?--? staticString $var
-     *   regexp ?-nocase? ?--? {^staticString$} $var
-     */
-
-    if (parsePtr->numWords < 3) {
-	return TCL_ERROR;
     }
 
-    simple = 0;
-    nocase = 0;
-    sawLast = 0;
-    varTokenPtr = parsePtr->tokenPtr;
-
     /*
-     * We only look for -nocase and -- as options. Everything else gets pushed
-     * to runtime execution. This is different than regexp's runtime option
-     * handling, but satisfies our stricter needs.
+     * Check if the number of things to concatenate will fit in a byte.
      */
 
-    for (i = 1; i < parsePtr->numWords - 2; i++) {
-	varTokenPtr = TokenAfter(varTokenPtr);
-	if (varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	    /*
-	     * Not a simple string, so punt to runtime.
-	     */
-
-	    return TCL_ERROR;
-	}
-	str = varTokenPtr[1].start;
-	len = varTokenPtr[1].size;
-	if ((len == 2) && (str[0] == '-') && (str[1] == '-')) {
-	    sawLast++;
-	    i++;
-	    break;
-	} else if ((len > 1) && (strncmp(str,"-nocase",(unsigned)len) == 0)) {
-	    nocase = 1;
-	} else {
-	    /*
-	     * Not an option we recognize.
-	     */
-
-	    return TCL_ERROR;
-	}
-    }
-
-    if ((parsePtr->numWords - i) != 2) {
-	/*
-	 * We don't support capturing to variables.
-	 */
-
+    if (i+2 != parsePtr->numWords || i > 125) {
+	Tcl_DecrRefCount(formatObj);
 	return TCL_ERROR;
     }
 
     /*
-     * Get the regexp string. If it is not a simple string or can't be
-     * converted to a glob pattern, push the word for the INST_REGEXP.
-     * Keep changes here in sync with TclCompileSwitchCmd Switch_Regexp.
+     * Generate the pushes of the things to concatenate, a sequence of
+     * literals and compiled tokens (of which at least one is non-literal or
+     * we'd have the case in the first half of this function) which we will
+     * concatenate.
      */
 
-    varTokenPtr = TokenAfter(varTokenPtr);
-
-    if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
-	Tcl_DString ds;
-
-	str = varTokenPtr[1].start;
-	len = varTokenPtr[1].size;
-
-	/*
-	 * If it has a '-', it could be an incorrectly formed regexp command.
-	 */
-
-	if ((*str == '-') && !sawLast) {
-	    return TCL_ERROR;
-	}
+    i = 0;			/* The count of things to concat. */
+    j = 2;			/* The index into the argument tokens, for
+				 * TIP#280 handling. */
+    start = Tcl_GetString(formatObj);
+				/* The start of the currently-scanned literal
+				 * in the format string. */
+    tmpObj = Tcl_NewObj();	/* The buffer used to accumulate the literal
+				 * being built. */
+    for (bytes = start ; *bytes ; bytes++) {
+	if (*bytes == '%') {
+	    Tcl_AppendToObj(tmpObj, start, bytes - start);
+	    if (*++bytes == '%') {
+		Tcl_AppendToObj(tmpObj, "%", 1);
+	    } else {
+		char *b = Tcl_GetStringFromObj(tmpObj, &len);
 
-	if (len == 0) {
-	    /*
-	     * The semantics of regexp are always match on re == "".
-	     */
+		/*
+		 * If there is a non-empty literal from the format string,
+		 * push it and reset.
+		 */
 
-	    PushLiteral(envPtr, "1", 1);
-	    return TCL_OK;
-	}
+		if (len > 0) {
+		    PushLiteral(envPtr, b, len);
+		    Tcl_DecrRefCount(tmpObj);
+		    tmpObj = Tcl_NewObj();
+		    i++;
+		}
 
-	/*
-	 * Attempt to convert pattern to glob.  If successful, push the
-	 * converted pattern as a literal.
-	 */
+		/*
+		 * Push the code to produce the string that would be
+		 * substituted with %s, except we'll be concatenating
+		 * directly.
+		 */
 
-	if (TclReToGlob(NULL, varTokenPtr[1].start, len, &ds, &exact)
-		== TCL_OK) {
-	    simple = 1;
-	    PushLiteral(envPtr, Tcl_DStringValue(&ds),Tcl_DStringLength(&ds));
-	    Tcl_DStringFree(&ds);
+		CompileWord(envPtr, tokenPtr, interp, j);
+		tokenPtr = TokenAfter(tokenPtr);
+		j++;
+		i++;
+	    }
+	    start = bytes + 1;
 	}
     }
 
-    if (!simple) {
-	CompileWord(envPtr, varTokenPtr, interp, parsePtr->numWords-2);
-    }
-
     /*
-     * Push the string arg.
+     * Handle the case of a trailing literal.
      */
 
-    varTokenPtr = TokenAfter(varTokenPtr);
-    CompileWord(envPtr, varTokenPtr, interp, parsePtr->numWords-1);
-
-    if (simple) {
-	if (exact && !nocase) {
-	    TclEmitOpcode(	INST_STR_EQ,			envPtr);
-	} else {
-	    TclEmitInstInt1(	INST_STR_MATCH, nocase,		envPtr);
-	}
-    } else {
-	/*
-	 * Pass correct RE compile flags.  We use only Int1 (8-bit), but
-	 * that handles all the flags we want to pass.
-	 * Don't use TCL_REG_NOSUB as we may have backrefs.
-	 */
-
-	int cflags = TCL_REG_ADVANCED | (nocase ? TCL_REG_NOCASE : 0);
-
-	TclEmitInstInt1(	INST_REGEXP, cflags,		envPtr);
+    Tcl_AppendToObj(tmpObj, start, bytes - start);
+    bytes = Tcl_GetStringFromObj(tmpObj, &len);
+    if (len > 0) {
+	PushLiteral(envPtr, bytes, len);
+	i++;
     }
+    Tcl_DecrRefCount(tmpObj);
+    Tcl_DecrRefCount(formatObj);
 
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileReturnCmd --
- *
- *	Procedure called to compile the "return" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "return" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclCompileReturnCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
-{
-    /*
-     * General syntax: [return ?-option value ...? ?result?]
-     * An even number of words means an explicit result argument is present.
-     */
-    int level, code, objc, size, status = TCL_OK;
-    int numWords = parsePtr->numWords;
-    int explicitResult = (0 == (numWords % 2));
-    int numOptionWords = numWords - 1 - explicitResult;
-    Tcl_Obj *returnOpts, **objv;
-    Tcl_Token *wordTokenPtr = TokenAfter(parsePtr->tokenPtr);
-    DefineLineInformation;	/* TIP #280 */
-
-    /*
-     * Check for special case which can always be compiled:
-     *	    return -options <opts> <msg>
-     * Unlike the normal [return] compilation, this version does everything at
-     * runtime so it can handle arbitrary words and not just literals. Note
-     * that if INST_RETURN_STK wasn't already needed for something else
-     * ('finally' clause processing) this piece of code would not be present.
-     */
-
-    if ((numWords == 4) && (wordTokenPtr->type == TCL_TOKEN_SIMPLE_WORD)
-	    && (wordTokenPtr[1].size == 8)
-	    && (strncmp(wordTokenPtr[1].start, "-options", 8) == 0)) {
-	Tcl_Token *optsTokenPtr = TokenAfter(wordTokenPtr);
-	Tcl_Token *msgTokenPtr = TokenAfter(optsTokenPtr);
-
-	CompileWord(envPtr, optsTokenPtr, interp, 2);
-	CompileWord(envPtr, msgTokenPtr,  interp, 3);
-	TclEmitOpcode(INST_RETURN_STK, envPtr);
-	return TCL_OK;
-    }
-
-    /*
-     * Allocate some working space.
-     */
-
-    objv = TclStackAlloc(interp, numOptionWords * sizeof(Tcl_Obj *));
-
-    /*
-     * Scan through the return options. If any are unknown at compile time,
-     * there is no value in bytecompiling. Save the option values known in an
-     * objv array for merging into a return options dictionary.
-     */
-
-    for (objc = 0; objc < numOptionWords; objc++) {
-	objv[objc] = Tcl_NewObj();
-	Tcl_IncrRefCount(objv[objc]);
-	if (!TclWordKnownAtCompileTime(wordTokenPtr, objv[objc])) {
-	    objc++;
-	    status = TCL_ERROR;
-	    goto cleanup;
-	}
-	wordTokenPtr = TokenAfter(wordTokenPtr);
-    }
-    status = TclMergeReturnOptions(interp, objc, objv,
-	    &returnOpts, &code, &level);
-  cleanup:
-    while (--objc >= 0) {
-	TclDecrRefCount(objv[objc]);
-    }
-    TclStackFree(interp, objv);
-    if (TCL_ERROR == status) {
+    if (i > 1) {
 	/*
-	 * Something was bogus in the return options. Clear the error message,
-	 * and report back to the compiler that this must be interpreted at
-	 * runtime.
+	 * Do the concatenation, which produces the result.
 	 */
 
-	Tcl_ResetResult(interp);
-	return TCL_ERROR;
-    }
-
-    /*
-     * All options are known at compile time, so we're going to bytecompile.
-     * Emit instructions to push the result on the stack.
-     */
-
-    if (explicitResult) {
-	 CompileWord(envPtr, wordTokenPtr, interp, numWords-1);
+	TclEmitInstInt1(INST_STR_CONCAT1, i, envPtr);
     } else {
 	/*
-	 * No explict result argument, so default result is empty string.
-	 */
-
-	PushLiteral(envPtr, "", 0);
-    }
-
-    /*
-     * Check for optimization: When [return] is in a proc, and there's no
-     * enclosing [catch], and there are no return options, then the INST_DONE
-     * instruction is equivalent, and may be more efficient.
-     */
-
-    if (numOptionWords == 0 && envPtr->procPtr != NULL) {
-	/*
-	 * We have default return options and we're in a proc ...
+	 * EVIL HACK! Force there to be a string representation in the case
+	 * where there's just a "%s" in the format; case covered by the test
+	 * format-20.1 (and it is horrible...)
 	 */
 
-	int index = envPtr->exceptArrayNext - 1;
-	int enclosingCatch = 0;
-
-	while (index >= 0) {
-	    ExceptionRange range = envPtr->exceptArrayPtr[index];
-
-	    if ((range.type == CATCH_EXCEPTION_RANGE)
-		    && (range.catchOffset == -1)) {
-		enclosingCatch = 1;
-		break;
-	    }
-	    index--;
-	}
-	if (!enclosingCatch) {
-	    /*
-	     * ... and there is no enclosing catch. Issue the maximally
-	     * efficient exit instruction.
-	     */
-
-	    Tcl_DecrRefCount(returnOpts);
-	    TclEmitOpcode(INST_DONE, envPtr);
-	    return TCL_OK;
-	}
+	TclEmitOpcode(INST_DUP, envPtr);
+	PushStringLiteral(envPtr, "");
+	TclEmitOpcode(INST_STR_EQ, envPtr);
+	TclEmitOpcode(INST_POP, envPtr);
     }
-
-    /* Optimize [return -level 0 $x]. */
-    Tcl_DictObjSize(NULL, returnOpts, &size);
-    if (size == 0 && level == 0 && code == TCL_OK) {
-	Tcl_DecrRefCount(returnOpts);
-	return TCL_OK;
-    }
-
-    /*
-     * Could not use the optimization, so we push the return options dict, and
-     * emit the INST_RETURN_IMM instruction with code and level as operands.
-     */
-
-    CompileReturnInternal(envPtr, INST_RETURN_IMM, code, level, returnOpts);
     return TCL_OK;
 }
-
-static void
-CompileReturnInternal(
-    CompileEnv *envPtr,
-    unsigned char op,
-    int code,
-    int level,
-    Tcl_Obj *returnOpts)
-{
-    TclEmitPush(TclAddLiteralObj(envPtr, returnOpts, NULL), envPtr);
-    TclEmitInstInt4(op, code, envPtr);
-    TclEmitInt4(level, envPtr);
-}
-
-void
-TclCompileSyntaxError(
-    Tcl_Interp *interp,
-    CompileEnv *envPtr)
-{
-    Tcl_Obj *msg = Tcl_GetObjResult(interp);
-    int numBytes;
-    const char *bytes = TclGetStringFromObj(msg, &numBytes);
-
-    TclErrorStackResetIf(interp, bytes, numBytes);
-    TclEmitPush(TclRegisterNewLiteral(envPtr, bytes, numBytes), envPtr);
-    CompileReturnInternal(envPtr, INST_SYNTAX, TCL_ERROR, 0,
-	    TclNoErrorStack(interp, Tcl_GetReturnOptions(interp, TCL_ERROR)));
-}
 
 /*
  *----------------------------------------------------------------------
  *
- * TclCompileUpvarCmd --
+ * TclLocalScalarFromToken --
  *
- *	Procedure called to compile the "upvar" command.
+ *	Get the index into the table of compiled locals that corresponds
+ *	to a local scalar variable name.
  *
  * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
+ * 	Returns the non-negative integer index value into the table of
+ * 	compiled locals corresponding to a local scalar variable name.
+ * 	If the arguments passed in do not identify a local scalar variable
+ * 	then return -1.
  *
  * Side effects:
- *	Instructions are added to envPtr to execute the "upvar" command at
- *	runtime.
+ *	May add an entery into the table of compiled locals.
  *
  *----------------------------------------------------------------------
  */
 
 int
-TclCompileUpvarCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
+TclLocalScalarFromToken(
+    Tcl_Token *tokenPtr,
+    CompileEnv *envPtr)
 {
-    Tcl_Token *tokenPtr, *otherTokenPtr, *localTokenPtr;
-    int simpleVarName, isScalar, localIndex, numWords, i;
-    DefineLineInformation;	/* TIP #280 */
-    Tcl_Obj *objPtr = Tcl_NewObj();
-
-    if (envPtr->procPtr == NULL) {
-	Tcl_DecrRefCount(objPtr);
-	return TCL_ERROR;
-    }
-
-    numWords = parsePtr->numWords;
-    if (numWords < 3) {
-	Tcl_DecrRefCount(objPtr);
-	return TCL_ERROR;
-    }
-
-    /*
-     * Push the frame index if it is known at compile time
-     */
-
-    tokenPtr = TokenAfter(parsePtr->tokenPtr);
-    if (TclWordKnownAtCompileTime(tokenPtr, objPtr)) {
-	CallFrame *framePtr;
-	const Tcl_ObjType *newTypePtr, *typePtr = objPtr->typePtr;
-
-	/*
-	 * Attempt to convert to a level reference. Note that TclObjGetFrame
-	 * only changes the obj type when a conversion was successful.
-	 */
-
-	TclObjGetFrame(interp, objPtr, &framePtr);
-	newTypePtr = objPtr->typePtr;
-	Tcl_DecrRefCount(objPtr);
-
-	if (newTypePtr != typePtr) {
-	    if (numWords%2) {
-		return TCL_ERROR;
-	    }
-	    CompileWord(envPtr, tokenPtr, interp, 1);
-	    otherTokenPtr = TokenAfter(tokenPtr);
-	    i = 4;
-	} else {
-	    if (!(numWords%2)) {
-		return TCL_ERROR;
-	    }
-	    PushLiteral(envPtr, "1", 1);
-	    otherTokenPtr = tokenPtr;
-	    i = 3;
-	}
-    } else {
-	Tcl_DecrRefCount(objPtr);
-	return TCL_ERROR;
-    }
+    int isScalar, index;
 
-    /*
-     * Loop over the (otherVar, thisVar) pairs. If any of the thisVar is not a
-     * local variable, return an error so that the non-compiled command will
-     * be called at runtime.
-     */
-
-    for (; i<=numWords; i+=2, otherTokenPtr = TokenAfter(localTokenPtr)) {
-	localTokenPtr = TokenAfter(otherTokenPtr);
-
-	CompileWord(envPtr, otherTokenPtr, interp, 1);
-	PushVarNameWord(interp, localTokenPtr, envPtr, 0,
-		&localIndex, &simpleVarName, &isScalar, 1);
-
-	if ((localIndex < 0) || !isScalar) {
-	    return TCL_ERROR;
-	}
-	TclEmitInstInt4(	INST_UPVAR, localIndex,		envPtr);
+    TclPushVarName(NULL, tokenPtr, envPtr, TCL_NO_ELEMENT, &index, &isScalar);
+    if (!isScalar) {
+	index = -1;
     }
-
-    /*
-     * Pop the frame index, and set the result to empty
-     */
-
-    TclEmitOpcode(		INST_POP,			envPtr);
-    PushLiteral(envPtr, "", 0);
-    return TCL_OK;
+    return index;
 }
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileVariableCmd --
- *
- *	Procedure called to compile the "variable" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "variable" command at
- *	runtime.
- *
- *----------------------------------------------------------------------
- */
 
 int
-TclCompileVariableCmd(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
-				 * created by Tcl_ParseCommand. */
-    Command *cmdPtr,		/* Points to defintion of command being
-				 * compiled. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
-{
-    Tcl_Token *varTokenPtr, *valueTokenPtr;
-    int localIndex, numWords, i;
-    DefineLineInformation;	/* TIP #280 */
-
-    numWords = parsePtr->numWords;
-    if (numWords < 2) {
-	return TCL_ERROR;
-    }
-
-    /*
-     * Bail out if not compiling a proc body
-     */
-
-    if (envPtr->procPtr == NULL) {
-	return TCL_ERROR;
-    }
-
-    /*
-     * Loop over the (var, value) pairs.
-     */
-
-    valueTokenPtr = parsePtr->tokenPtr;
-    for (i=2; i<=numWords; i+=2) {
-	varTokenPtr = TokenAfter(valueTokenPtr);
-	valueTokenPtr = TokenAfter(varTokenPtr);
-
-	localIndex = IndexTailVarIfKnown(interp, varTokenPtr, envPtr);
-
-	if (localIndex < 0) {
-	    return TCL_ERROR;
-	}
-
-	CompileWord(envPtr, varTokenPtr, interp, 1);
-	TclEmitInstInt4(	INST_VARIABLE, localIndex,	envPtr);
-
-	if (i != numWords) {
-	    /*
-	     * A value has been given: set the variable, pop the value
-	     */
-
-	    CompileWord(envPtr, valueTokenPtr, interp, 1);
-	    Emit14Inst(		INST_STORE_SCALAR, localIndex,	envPtr);
-	    TclEmitOpcode(	INST_POP,			envPtr);
-	}
-    }
-
-    /*
-     * Set the result to empty
-     */
-
-    PushLiteral(envPtr, "", 0);
-    return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * IndexTailVarIfKnown --
- *
- *	Procedure used in compiling [global] and [variable] commands. It
- *	inspects the variable name described by varTokenPtr and, if the tail
- *	is known at compile time, defines a corresponding local variable.
- *
- * Results:
- *	Returns the variable's index in the table of compiled locals if the
- *	tail is known at compile time, or -1 otherwise.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-IndexTailVarIfKnown(
-    Tcl_Interp *interp,
-    Tcl_Token *varTokenPtr,	/* Token representing the variable name */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
+TclLocalScalar(
+    const char *bytes,
+    int numBytes,
+    CompileEnv *envPtr)
 {
-    Tcl_Obj *tailPtr;
-    const char *tailName, *p;
-    int len, n = varTokenPtr->numComponents;
-    Tcl_Token *lastTokenPtr;
-    int full, localIndex;
-
-    /*
-     * Determine if the tail is (a) known at compile time, and (b) not an
-     * array element. Should any of these fail, return an error so that the
-     * non-compiled command will be called at runtime.
-     *
-     * In order for the tail to be known at compile time, the last token in
-     * the word has to be constant and contain "::" if it is not the only one.
-     */
-
-    if (!EnvHasLVT(envPtr)) {
-	return -1;
-    }
-
-    TclNewObj(tailPtr);
-    if (TclWordKnownAtCompileTime(varTokenPtr, tailPtr)) {
-	full = 1;
-	lastTokenPtr = varTokenPtr;
-    } else {
-	full = 0;
-	lastTokenPtr = varTokenPtr + n;
-	if (!TclWordKnownAtCompileTime(lastTokenPtr, tailPtr)) {
-	    Tcl_DecrRefCount(tailPtr);
-	    return -1;
-	}
-    }
+    Tcl_Token token[2] =        {{TCL_TOKEN_SIMPLE_WORD, NULL, 0, 1},
+                                 {TCL_TOKEN_TEXT, NULL, 0, 0}};
 
-    tailName = TclGetStringFromObj(tailPtr, &len);
-
-    if (len) {
-	if (*(tailName+len-1) == ')') {
-	    /*
-	     * Possible array: bail out
-	     */
-
-	    Tcl_DecrRefCount(tailPtr);
-	    return -1;
-	}
-
-	/*
-	 * Get the tail: immediately after the last '::'
-	 */
-
-	for (p = tailName + len -1; p > tailName; p--) {
-	    if ((*p == ':') && (*(p-1) == ':')) {
-		p++;
-		break;
-	    }
-	}
-	if (!full && (p == tailName)) {
-	    /*
-	     * No :: in the last component.
-	     */
-
-	    Tcl_DecrRefCount(tailPtr);
-	    return -1;
-	}
-	len -= p - tailName;
-	tailName = p;
-    }
-
-    localIndex = TclFindCompiledLocal(tailName, len, 1, envPtr);
-    Tcl_DecrRefCount(tailPtr);
-    return localIndex;
+    token[1].start = bytes;
+    token[1].size = numBytes;
+    return TclLocalScalarFromToken(token, envPtr);
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * PushVarName --
+ * TclPushVarName --
  *
  *	Procedure used in the compiling where pushing a variable name is
  *	necessary (append, lappend, set).
  *
  * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
+ *	The values written to *localIndexPtr and *isScalarPtr signal to
+ *	the caller what the instructions emitted by this routine will do:
+ *
+ *	*isScalarPtr	(*localIndexPtr < 0)
+ *	1		1	Push the varname on the stack. (Stack +1)
+ *	1		0	*localIndexPtr is the index of the compiled
+ *				local for this varname.  No instructions
+ *				emitted.	(Stack +0)
+ *	0		1	Push part1 and part2 names of array element
+ *				on the stack.	(Stack +2)
+ *	0		0	*localIndexPtr is the index of the compiled
+ *				local for this array.  Element name is pushed
+ *				on the stack.	(Stack +1)
  *
  * Side effects:
- *	Instructions are added to envPtr to execute the "set" command at
- *	runtime.
+ *	Instructions are added to envPtr.
  *
  *----------------------------------------------------------------------
  */
 
-static int
-PushVarName(
+void
+TclPushVarName(
     Tcl_Interp *interp,		/* Used for error reporting. */
     Tcl_Token *varTokenPtr,	/* Points to a variable token. */
     CompileEnv *envPtr,		/* Holds resulting instructions. */
-    int flags,			/* TCL_NO_LARGE_INDEX. */
+    int flags,			/* TCL_NO_LARGE_INDEX | TCL_NO_ELEMENT. */
     int *localIndexPtr,		/* Must not be NULL. */
-    int *simpleVarNamePtr,	/* Must not be NULL. */
-    int *isScalarPtr,		/* Must not be NULL. */
-    int line,			/* Line the token starts on. */
-    int *clNext)		/* Reference to offset of next hidden cont.
-				 * line. */
+    int *isScalarPtr)		/* Must not be NULL. */
 {
     register const char *p;
     const char *name, *elName;
@@ -4478,16 +3298,7 @@ PushVarName(
     nameChars = elNameChars = 0;
     localIndex = -1;
 
-    /*
-     * Check not only that the type is TCL_TOKEN_SIMPLE_WORD, but whether
-     * curly braces surround the variable name. This really matters for array
-     * elements to handle things like
-     *    set {x($foo)} 5
-     * which raises an undefined var error if we are not careful here.
-     */
-
-    if ((varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) &&
-	    (varTokenPtr->start[0] != '{')) {
+    if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
 	/*
 	 * A simple variable name. Divide it up into "name" and "elName"
 	 * strings. If it is not a local variable, look it up at runtime.
@@ -4511,7 +3322,7 @@ PushVarName(
 		}
 	    }
 
-	    if ((elName != NULL) && elNameChars) {
+	    if (!(flags & TCL_NO_ELEMENT) && (elName != NULL) && elNameChars) {
 		/*
 		 * An array element, the element name is a simple string:
 		 * assemble the corresponding token.
@@ -4526,7 +3337,7 @@ PushVarName(
 		elemTokenCount = 1;
 	    }
 	}
-    } else if (((n = varTokenPtr->numComponents) > 1)
+    } else if (interp && ((n = varTokenPtr->numComponents) > 1)
 	    && (varTokenPtr[1].type == TCL_TOKEN_TEXT)
 	    && (varTokenPtr[n].type == TCL_TOKEN_TEXT)
 	    && (varTokenPtr[n].start[varTokenPtr[n].size - 1] == ')')) {
@@ -4562,9 +3373,10 @@ PushVarName(
 	    nameChars = p - varTokenPtr[1].start;
 	    elName = p + 1;
 	    remainingChars = (varTokenPtr[2].start - p) - 1;
-	    elNameChars = (varTokenPtr[n].start-p) + varTokenPtr[n].size - 2;
+	    elNameChars = (varTokenPtr[n].start-p) + varTokenPtr[n].size - 1;
 
-	    if (remainingChars) {
+	    if (!(flags & TCL_NO_ELEMENT)) {
+	      if (remainingChars) {
 		/*
 		 * Make a first token with the extra characters in the first
 		 * token.
@@ -4584,13 +3396,14 @@ PushVarName(
 
 		memcpy(elemTokenPtr+1, varTokenPtr+2,
 			(n-1) * sizeof(Tcl_Token));
-	    } else {
+	      } else {
 		/*
 		 * Use the already available tokens.
 		 */
 
 		elemTokenPtr = &varTokenPtr[2];
 		elemTokenCount = n - 1;
+	      }
 	    }
 	}
     }
@@ -4616,8 +3429,7 @@ PushVarName(
 	 */
 
 	if (!hasNsQualifiers) {
-	    localIndex = TclFindCompiledLocal(name, nameChars,
-		    1, envPtr);
+	    localIndex = TclFindCompiledLocal(name, nameChars, 1, envPtr);
 	    if ((flags & TCL_NO_LARGE_INDEX) && (localIndex > 255)) {
 		/*
 		 * We'll push the name.
@@ -4626,31 +3438,28 @@ PushVarName(
 		localIndex = -1;
 	    }
 	}
-	if (localIndex < 0) {
+	if (interp && localIndex < 0) {
 	    PushLiteral(envPtr, name, nameChars);
 	}
 
 	/*
-	 * Compile the element script, if any.
+	 * Compile the element script, if any, and only if not inhibited. [Bug
+	 * 3600328]
 	 */
 
-	if (elName != NULL) {
+	if (elName != NULL && !(flags & TCL_NO_ELEMENT)) {
 	    if (elNameChars) {
-		envPtr->line = line;
-		envPtr->clNext = clNext;
 		TclCompileTokens(interp, elemTokenPtr, elemTokenCount,
 			envPtr);
 	    } else {
-		PushLiteral(envPtr, "", 0);
+		PushStringLiteral(envPtr, "");
 	    }
 	}
-    } else {
+    } else if (interp) {
 	/*
 	 * The var name isn't simple: compile and push it.
 	 */
 
-	envPtr->line = line;
-	envPtr->clNext = clNext;
 	CompileTokens(envPtr, varTokenPtr, interp);
     }
 
@@ -4661,9 +3470,7 @@ PushVarName(
 	TclStackFree(interp, elemTokenPtr);
     }
     *localIndexPtr = localIndex;
-    *simpleVarNamePtr = simpleVarName;
     *isScalarPtr = (elName == NULL);
-    return TCL_OK;
 }
 
 /*
diff --git a/generic/tclCompCmdsGR.c b/generic/tclCompCmdsGR.c
new file mode 100644
index 0000000..b9c655b
--- /dev/null
+++ b/generic/tclCompCmdsGR.c
@@ -0,0 +1,3143 @@
+/*
+ * tclCompCmdsGR.c --
+ *
+ *	This file contains compilation procedures that compile various Tcl
+ *	commands (beginning with the letters 'g' through 'r') into a sequence
+ *	of instructions ("bytecodes").
+ *
+ * Copyright (c) 1997-1998 Sun Microsystems, Inc.
+ * Copyright (c) 2001 by Kevin B. Kenny.  All rights reserved.
+ * Copyright (c) 2002 ActiveState Corporation.
+ * Copyright (c) 2004-2013 by Donal K. Fellows.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclInt.h"
+#include "tclCompile.h"
+#include <assert.h>
+
+/*
+ * Prototypes for procedures defined later in this file:
+ */
+
+static void		CompileReturnInternal(CompileEnv *envPtr,
+			    unsigned char op, int code, int level,
+			    Tcl_Obj *returnOpts);
+static int		IndexTailVarIfKnown(Tcl_Interp *interp,
+			    Tcl_Token *varTokenPtr, CompileEnv *envPtr);
+
+#define INDEX_END	(-2)
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * GetIndexFromToken --
+ *
+ *	Parse a token and get the encoded version of the index (as understood
+ *	by TEBC), assuming it is at all knowable at compile time. Only handles
+ *	indices that are integers or 'end' or 'end-integer'.
+ *
+ * Returns:
+ *	TCL_OK if parsing succeeded, and TCL_ERROR if it failed.
+ *
+ * Side effects:
+ *	Sets *index to the index value if successful.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static inline int
+GetIndexFromToken(
+    Tcl_Token *tokenPtr,
+    int *index)
+{
+    Tcl_Obj *tmpObj = Tcl_NewObj();
+    int result, idx;
+
+    if (!TclWordKnownAtCompileTime(tokenPtr, tmpObj)) {
+	Tcl_DecrRefCount(tmpObj);
+	return TCL_ERROR;
+    }
+
+    result = TclGetIntFromObj(NULL, tmpObj, &idx);
+    if (result == TCL_OK) {
+	if (idx < 0) {
+	    result = TCL_ERROR;
+	}
+    } else {
+	result = TclGetIntForIndexM(NULL, tmpObj, INDEX_END, &idx);
+	if (result == TCL_OK && idx > INDEX_END) {
+	    result = TCL_ERROR;
+	}
+    }
+    Tcl_DecrRefCount(tmpObj);
+
+    if (result == TCL_OK) {
+	*index = idx;
+    }
+
+    return result;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileGlobalCmd --
+ *
+ *	Procedure called to compile the "global" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "global" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileGlobalCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *varTokenPtr;
+    int localIndex, numWords, i;
+    DefineLineInformation;	/* TIP #280 */
+
+    /* TODO: Consider support for compiling expanded args. */
+    numWords = parsePtr->numWords;
+    if (numWords < 2) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * 'global' has no effect outside of proc bodies; handle that at runtime
+     */
+
+    if (envPtr->procPtr == NULL) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Push the namespace
+     */
+
+    PushStringLiteral(envPtr, "::");
+
+    /*
+     * Loop over the variables.
+     */
+
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    for (i=1; i<numWords; varTokenPtr = TokenAfter(varTokenPtr),i++) {
+	localIndex = IndexTailVarIfKnown(interp, varTokenPtr, envPtr);
+
+	if (localIndex < 0) {
+	    return TCL_ERROR;
+	}
+
+	/* TODO: Consider what value can pass throug the 
+	 * IndexTailVarIfKnown() screen.  Full CompileWord()
+	 * likely does not apply here.  Push known value instead. */
+	CompileWord(envPtr, varTokenPtr, interp, i);
+	TclEmitInstInt4(	INST_NSUPVAR, localIndex,	envPtr);
+    }
+
+    /*
+     * Pop the namespace, and set the result to empty
+     */
+
+    TclEmitOpcode(		INST_POP,			envPtr);
+    PushStringLiteral(envPtr, "");
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileIfCmd --
+ *
+ *	Procedure called to compile the "if" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "if" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileIfCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    JumpFixupArray jumpFalseFixupArray;
+				/* Used to fix the ifFalse jump after each
+				 * test when its target PC is determined. */
+    JumpFixupArray jumpEndFixupArray;
+				/* Used to fix the jump after each "then" body
+				 * to the end of the "if" when that PC is
+				 * determined. */
+    Tcl_Token *tokenPtr, *testTokenPtr;
+    int jumpIndex = 0;		/* Avoid compiler warning. */
+    int jumpFalseDist, numWords, wordIdx, numBytes, j, code;
+    const char *word;
+    int realCond = 1;		/* Set to 0 for static conditions:
+				 * "if 0 {..}" */
+    int boolVal;		/* Value of static condition. */
+    int compileScripts = 1;
+    DefineLineInformation;	/* TIP #280 */
+
+    /*
+     * Only compile the "if" command if all arguments are simple words, in
+     * order to insure correct substitution [Bug 219166]
+     */
+
+    tokenPtr = parsePtr->tokenPtr;
+    wordIdx = 0;
+    numWords = parsePtr->numWords;
+
+    for (wordIdx = 0; wordIdx < numWords; wordIdx++) {
+	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+	    return TCL_ERROR;
+	}
+	tokenPtr = TokenAfter(tokenPtr);
+    }
+
+    TclInitJumpFixupArray(&jumpFalseFixupArray);
+    TclInitJumpFixupArray(&jumpEndFixupArray);
+    code = TCL_OK;
+
+    /*
+     * Each iteration of this loop compiles one "if expr ?then? body" or
+     * "elseif expr ?then? body" clause.
+     */
+
+    tokenPtr = parsePtr->tokenPtr;
+    wordIdx = 0;
+    while (wordIdx < numWords) {
+	/*
+	 * Stop looping if the token isn't "if" or "elseif".
+	 */
+
+	word = tokenPtr[1].start;
+	numBytes = tokenPtr[1].size;
+	if ((tokenPtr == parsePtr->tokenPtr)
+		|| ((numBytes == 6) && (strncmp(word, "elseif", 6) == 0))) {
+	    tokenPtr = TokenAfter(tokenPtr);
+	    wordIdx++;
+	} else {
+	    break;
+	}
+	if (wordIdx >= numWords) {
+	    code = TCL_ERROR;
+	    goto done;
+	}
+
+	/*
+	 * Compile the test expression then emit the conditional jump around
+	 * the "then" part.
+	 */
+
+	testTokenPtr = tokenPtr;
+
+	if (realCond) {
+	    /*
+	     * Find out if the condition is a constant.
+	     */
+
+	    Tcl_Obj *boolObj = Tcl_NewStringObj(testTokenPtr[1].start,
+		    testTokenPtr[1].size);
+
+	    Tcl_IncrRefCount(boolObj);
+	    code = Tcl_GetBooleanFromObj(NULL, boolObj, &boolVal);
+	    TclDecrRefCount(boolObj);
+	    if (code == TCL_OK) {
+		/*
+		 * A static condition.
+		 */
+
+		realCond = 0;
+		if (!boolVal) {
+		    compileScripts = 0;
+		}
+	    } else {
+		SetLineInformation(wordIdx);
+		Tcl_ResetResult(interp);
+		TclCompileExprWords(interp, testTokenPtr, 1, envPtr);
+		if (jumpFalseFixupArray.next >= jumpFalseFixupArray.end) {
+		    TclExpandJumpFixupArray(&jumpFalseFixupArray);
+		}
+		jumpIndex = jumpFalseFixupArray.next;
+		jumpFalseFixupArray.next++;
+		TclEmitForwardJump(envPtr, TCL_FALSE_JUMP,
+			jumpFalseFixupArray.fixup+jumpIndex);
+	    }
+	    code = TCL_OK;
+	}
+
+	/*
+	 * Skip over the optional "then" before the then clause.
+	 */
+
+	tokenPtr = TokenAfter(testTokenPtr);
+	wordIdx++;
+	if (wordIdx >= numWords) {
+	    code = TCL_ERROR;
+	    goto done;
+	}
+	if (tokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
+	    word = tokenPtr[1].start;
+	    numBytes = tokenPtr[1].size;
+	    if ((numBytes == 4) && (strncmp(word, "then", 4) == 0)) {
+		tokenPtr = TokenAfter(tokenPtr);
+		wordIdx++;
+		if (wordIdx >= numWords) {
+		    code = TCL_ERROR;
+		    goto done;
+		}
+	    }
+	}
+
+	/*
+	 * Compile the "then" command body.
+	 */
+
+	if (compileScripts) {
+	    BODY(tokenPtr, wordIdx);
+	}
+
+	if (realCond) {
+	    /*
+	     * Jump to the end of the "if" command. Both jumpFalseFixupArray
+	     * and jumpEndFixupArray are indexed by "jumpIndex".
+	     */
+
+	    if (jumpEndFixupArray.next >= jumpEndFixupArray.end) {
+		TclExpandJumpFixupArray(&jumpEndFixupArray);
+	    }
+	    jumpEndFixupArray.next++;
+	    TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP,
+		    jumpEndFixupArray.fixup+jumpIndex);
+
+	    /*
+	     * Fix the target of the jumpFalse after the test. Generate a 4
+	     * byte jump if the distance is > 120 bytes. This is conservative,
+	     * and ensures that we won't have to replace this jump if we later
+	     * also need to replace the proceeding jump to the end of the "if"
+	     * with a 4 byte jump.
+	     */
+
+	    TclAdjustStackDepth(-1, envPtr);
+	    if (TclFixupForwardJumpToHere(envPtr,
+		    jumpFalseFixupArray.fixup+jumpIndex, 120)) {
+		/*
+		 * Adjust the code offset for the proceeding jump to the end
+		 * of the "if" command.
+		 */
+
+		jumpEndFixupArray.fixup[jumpIndex].codeOffset += 3;
+	    }
+	} else if (boolVal) {
+	    /*
+	     * We were processing an "if 1 {...}"; stop compiling scripts.
+	     */
+
+	    compileScripts = 0;
+	} else {
+	    /*
+	     * We were processing an "if 0 {...}"; reset so that the rest
+	     * (elseif, else) is compiled correctly.
+	     */
+
+	    realCond = 1;
+	    compileScripts = 1;
+	}
+
+	tokenPtr = TokenAfter(tokenPtr);
+	wordIdx++;
+    }
+
+    /*
+     * Check for the optional else clause. Do not compile anything if this was
+     * an "if 1 {...}" case.
+     */
+
+    if ((wordIdx < numWords) && (tokenPtr->type == TCL_TOKEN_SIMPLE_WORD)) {
+	/*
+	 * There is an else clause. Skip over the optional "else" word.
+	 */
+
+	word = tokenPtr[1].start;
+	numBytes = tokenPtr[1].size;
+	if ((numBytes == 4) && (strncmp(word, "else", 4) == 0)) {
+	    tokenPtr = TokenAfter(tokenPtr);
+	    wordIdx++;
+	    if (wordIdx >= numWords) {
+		code = TCL_ERROR;
+		goto done;
+	    }
+	}
+
+	if (compileScripts) {
+	    /*
+	     * Compile the else command body.
+	     */
+
+	    BODY(tokenPtr, wordIdx);
+	}
+
+	/*
+	 * Make sure there are no words after the else clause.
+	 */
+
+	wordIdx++;
+	if (wordIdx < numWords) {
+	    code = TCL_ERROR;
+	    goto done;
+	}
+    } else {
+	/*
+	 * No else clause: the "if" command's result is an empty string.
+	 */
+
+	if (compileScripts) {
+	    PushStringLiteral(envPtr, "");
+	}
+    }
+
+    /*
+     * Fix the unconditional jumps to the end of the "if" command.
+     */
+
+    for (j = jumpEndFixupArray.next;  j > 0;  j--) {
+	jumpIndex = (j - 1);	/* i.e. process the closest jump first. */
+	if (TclFixupForwardJumpToHere(envPtr,
+		jumpEndFixupArray.fixup+jumpIndex, 127)) {
+	    /*
+	     * Adjust the immediately preceeding "ifFalse" jump. We moved it's
+	     * target (just after this jump) down three bytes.
+	     */
+
+	    unsigned char *ifFalsePc = envPtr->codeStart
+		    + jumpFalseFixupArray.fixup[jumpIndex].codeOffset;
+	    unsigned char opCode = *ifFalsePc;
+
+	    if (opCode == INST_JUMP_FALSE1) {
+		jumpFalseDist = TclGetInt1AtPtr(ifFalsePc + 1);
+		jumpFalseDist += 3;
+		TclStoreInt1AtPtr(jumpFalseDist, (ifFalsePc + 1));
+	    } else if (opCode == INST_JUMP_FALSE4) {
+		jumpFalseDist = TclGetInt4AtPtr(ifFalsePc + 1);
+		jumpFalseDist += 3;
+		TclStoreInt4AtPtr(jumpFalseDist, (ifFalsePc + 1));
+	    } else {
+		Tcl_Panic("TclCompileIfCmd: unexpected opcode \"%d\" updating ifFalse jump", (int) opCode);
+	    }
+	}
+    }
+
+    /*
+     * Free the jumpFixupArray array if malloc'ed storage was used.
+     */
+
+  done:
+    TclFreeJumpFixupArray(&jumpFalseFixupArray);
+    TclFreeJumpFixupArray(&jumpEndFixupArray);
+    return code;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileIncrCmd --
+ *
+ *	Procedure called to compile the "incr" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "incr" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileIncrCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *varTokenPtr, *incrTokenPtr;
+    int isScalar, localIndex, haveImmValue, immValue;
+    DefineLineInformation;	/* TIP #280 */
+
+    if ((parsePtr->numWords != 2) && (parsePtr->numWords != 3)) {
+	return TCL_ERROR;
+    }
+
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    PushVarNameWord(interp, varTokenPtr, envPtr, TCL_NO_LARGE_INDEX,
+	    &localIndex, &isScalar, 1);
+
+    /*
+     * If an increment is given, push it, but see first if it's a small
+     * integer.
+     */
+
+    haveImmValue = 0;
+    immValue = 1;
+    if (parsePtr->numWords == 3) {
+	incrTokenPtr = TokenAfter(varTokenPtr);
+	if (incrTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
+	    const char *word = incrTokenPtr[1].start;
+	    int numBytes = incrTokenPtr[1].size;
+	    int code;
+	    Tcl_Obj *intObj = Tcl_NewStringObj(word, numBytes);
+
+	    Tcl_IncrRefCount(intObj);
+	    code = TclGetIntFromObj(NULL, intObj, &immValue);
+	    TclDecrRefCount(intObj);
+	    if ((code == TCL_OK) && (-127 <= immValue) && (immValue <= 127)) {
+		haveImmValue = 1;
+	    }
+	    if (!haveImmValue) {
+		PushLiteral(envPtr, word, numBytes);
+	    }
+	} else {
+	    SetLineInformation(2);
+	    CompileTokens(envPtr, incrTokenPtr, interp);
+	}
+    } else {			/* No incr amount given so use 1. */
+	haveImmValue = 1;
+    }
+
+    /*
+     * Emit the instruction to increment the variable.
+     */
+
+    if (isScalar) {	/* Simple scalar variable. */
+	if (localIndex >= 0) {
+	    if (haveImmValue) {
+		TclEmitInstInt1(INST_INCR_SCALAR1_IMM, localIndex, envPtr);
+		TclEmitInt1(immValue, envPtr);
+	    } else {
+		TclEmitInstInt1(INST_INCR_SCALAR1, localIndex,	envPtr);
+	    }
+	} else {
+	    if (haveImmValue) {
+		TclEmitInstInt1(INST_INCR_STK_IMM, immValue, envPtr);
+	    } else {
+		TclEmitOpcode(	INST_INCR_STK,		envPtr);
+	    }
+	}
+    } else {			/* Simple array variable. */
+	if (localIndex >= 0) {
+	    if (haveImmValue) {
+		TclEmitInstInt1(INST_INCR_ARRAY1_IMM, localIndex, envPtr);
+		TclEmitInt1(immValue, envPtr);
+	    } else {
+		TclEmitInstInt1(INST_INCR_ARRAY1, localIndex,	envPtr);
+	    }
+	} else {
+	    if (haveImmValue) {
+		TclEmitInstInt1(INST_INCR_ARRAY_STK_IMM, immValue, envPtr);
+	    } else {
+		TclEmitOpcode(	INST_INCR_ARRAY_STK,		envPtr);
+	    }
+	}
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileInfo*Cmd --
+ *
+ *	Procedures called to compile "info" subcommands.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "info" subcommand at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileInfoCommandsCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+    Tcl_Obj *objPtr;
+    char *bytes;
+
+    /*
+     * We require one compile-time known argument for the case we can compile.
+     */
+
+    if (parsePtr->numWords == 1) {
+	return TclCompileBasic0ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    } else if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    objPtr = Tcl_NewObj();
+    Tcl_IncrRefCount(objPtr);
+    if (!TclWordKnownAtCompileTime(tokenPtr, objPtr)) {
+	goto notCompilable;
+    }
+    bytes = Tcl_GetString(objPtr);
+
+    /*
+     * We require that the argument start with "::" and not have any of "*\[?"
+     * in it. (Theoretically, we should look in only the final component, but
+     * the difference is so slight given current naming practices.)
+     */
+
+    if (bytes[0] != ':' || bytes[1] != ':' || !TclMatchIsTrivial(bytes)) {
+	goto notCompilable;
+    }
+    Tcl_DecrRefCount(objPtr);
+
+    /*
+     * Confirmed as a literal that will not frighten the horses. Compile. Note
+     * that the result needs to be list-ified.
+     */
+
+    /* TODO: Just push the known value */
+    CompileWord(envPtr, tokenPtr,		interp, 1);
+    TclEmitOpcode(	INST_RESOLVE_COMMAND,	envPtr);
+    TclEmitOpcode(	INST_DUP,		envPtr);
+    TclEmitOpcode(	INST_STR_LEN,		envPtr);
+    TclEmitInstInt1(	INST_JUMP_FALSE1, 7,	envPtr);
+    TclEmitInstInt4(	INST_LIST, 1,		envPtr);
+    return TCL_OK;
+
+  notCompilable:
+    Tcl_DecrRefCount(objPtr);
+    return TclCompileBasic1ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileInfoCoroutineCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Only compile [info coroutine] without arguments.
+     */
+
+    if (parsePtr->numWords != 1) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Not much to do; we compile to a single instruction...
+     */
+
+    TclEmitOpcode(		INST_COROUTINE_NAME,		envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileInfoExistsCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr;
+    int isScalar, localIndex;
+    DefineLineInformation;	/* TIP #280 */
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Decide if we can use a frame slot for the var/array name or if we need
+     * to emit code to compute and push the name at runtime. We use a frame
+     * slot (entry in the array of local vars) if we are compiling a procedure
+     * body and if the name is simple text that does not include namespace
+     * qualifiers.
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    PushVarNameWord(interp, tokenPtr, envPtr, 0, &localIndex, &isScalar, 1);
+
+    /*
+     * Emit instruction to check the variable for existence.
+     */
+
+    if (isScalar) {
+	if (localIndex < 0) {
+	    TclEmitOpcode(	INST_EXIST_STK,			envPtr);
+	} else {
+	    TclEmitInstInt4(	INST_EXIST_SCALAR, localIndex,	envPtr);
+	}
+    } else {
+	if (localIndex < 0) {
+	    TclEmitOpcode(	INST_EXIST_ARRAY_STK,		envPtr);
+	} else {
+	    TclEmitInstInt4(	INST_EXIST_ARRAY, localIndex,	envPtr);
+	}
+    }
+
+    return TCL_OK;
+}
+
+int
+TclCompileInfoLevelCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Only compile [info level] without arguments or with a single argument.
+     */
+
+    if (parsePtr->numWords == 1) {
+	/*
+	 * Not much to do; we compile to a single instruction...
+	 */
+
+	TclEmitOpcode(		INST_INFO_LEVEL_NUM,		envPtr);
+    } else if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    } else {
+	DefineLineInformation;	/* TIP #280 */
+
+	/*
+	 * Compile the argument, then add the instruction to convert it into a
+	 * list of arguments.
+	 */
+
+	CompileWord(envPtr, TokenAfter(parsePtr->tokenPtr), interp, 1);
+	TclEmitOpcode(		INST_INFO_LEVEL_ARGS,		envPtr);
+    }
+    return TCL_OK;
+}
+
+int
+TclCompileInfoObjectClassCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+    CompileWord(envPtr,		tokenPtr,		interp, 1);
+    TclEmitOpcode(		INST_TCLOO_CLASS,	envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileInfoObjectIsACmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    /*
+     * We only handle [info object isa object <somevalue>]. The first three
+     * words are compressed to a single token by the ensemble compilation
+     * engine.
+     */
+
+    if (parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD || tokenPtr[1].size < 1
+	    || strncmp(tokenPtr[1].start, "object", tokenPtr[1].size)) {
+	return TCL_ERROR;
+    }
+    tokenPtr = TokenAfter(tokenPtr);
+
+    /*
+     * Issue the code.
+     */
+
+    CompileWord(envPtr,		tokenPtr,		interp, 2);
+    TclEmitOpcode(		INST_TCLOO_IS_OBJECT,	envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileInfoObjectNamespaceCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+    CompileWord(envPtr,		tokenPtr,		interp, 1);
+    TclEmitOpcode(		INST_TCLOO_NS,		envPtr);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileLappendCmd --
+ *
+ *	Procedure called to compile the "lappend" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "lappend" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileLappendCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *varTokenPtr, *valueTokenPtr;
+    int isScalar, localIndex, numWords, i;
+    DefineLineInformation;	/* TIP #280 */
+
+    /* TODO: Consider support for compiling expanded args. */
+    numWords = parsePtr->numWords;
+    if (numWords < 3) {
+	return TCL_ERROR;
+    }
+
+    if (numWords != 3 || envPtr->procPtr == NULL) {
+	goto lappendMultiple;
+    }
+
+    /*
+     * Decide if we can use a frame slot for the var/array name or if we
+     * need to emit code to compute and push the name at runtime. We use a
+     * frame slot (entry in the array of local vars) if we are compiling a
+     * procedure body and if the name is simple text that does not include
+     * namespace qualifiers.
+     */
+
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    PushVarNameWord(interp, varTokenPtr, envPtr, 0,
+	    &localIndex, &isScalar, 1);
+
+    /*
+     * If we are doing an assignment, push the new value. In the no values
+     * case, create an empty object.
+     */
+
+    if (numWords > 2) {
+	Tcl_Token *valueTokenPtr = TokenAfter(varTokenPtr);
+
+	CompileWord(envPtr, valueTokenPtr, interp, 2);
+    }
+
+    /*
+     * Emit instructions to set/get the variable.
+     */
+
+    /*
+     * The *_STK opcodes should be refactored to make better use of existing
+     * LOAD/STORE instructions.
+     */
+
+    if (isScalar) {
+	if (localIndex < 0) {
+	    TclEmitOpcode(	INST_LAPPEND_STK,		envPtr);
+	} else {
+	    Emit14Inst(		INST_LAPPEND_SCALAR, localIndex, envPtr);
+	}
+    } else {
+	if (localIndex < 0) {
+	    TclEmitOpcode(	INST_LAPPEND_ARRAY_STK,		envPtr);
+	} else {
+	    Emit14Inst(		INST_LAPPEND_ARRAY, localIndex,	envPtr);
+	}
+    }
+
+    return TCL_OK;
+
+  lappendMultiple:
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    PushVarNameWord(interp, varTokenPtr, envPtr, 0,
+	    &localIndex, &isScalar, 1);
+    valueTokenPtr = TokenAfter(varTokenPtr);
+    for (i = 2 ; i < numWords ; i++) {
+	CompileWord(envPtr, valueTokenPtr, interp, i);
+	valueTokenPtr = TokenAfter(valueTokenPtr);
+    }
+    TclEmitInstInt4(	    INST_LIST, numWords-2,		envPtr);
+    if (isScalar) {
+	if (localIndex < 0) {
+	    TclEmitOpcode(  INST_LAPPEND_LIST_STK,		envPtr);
+	} else {
+	    TclEmitInstInt4(INST_LAPPEND_LIST, localIndex,	envPtr);
+	}
+    } else {
+	if (localIndex < 0) {
+	    TclEmitOpcode(  INST_LAPPEND_LIST_ARRAY_STK,	envPtr);
+	} else {
+	    TclEmitInstInt4(INST_LAPPEND_LIST_ARRAY, localIndex,envPtr);
+	}
+    }
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileLassignCmd --
+ *
+ *	Procedure called to compile the "lassign" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "lassign" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileLassignCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr;
+    int isScalar, localIndex, numWords, idx;
+    DefineLineInformation;	/* TIP #280 */
+
+    numWords = parsePtr->numWords;
+
+    /*
+     * Check for command syntax error, but we'll punt that to runtime.
+     */
+
+    if (numWords < 3) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Generate code to push list being taken apart by [lassign].
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr, interp, 1);
+
+    /*
+     * Generate code to assign values from the list to variables.
+     */
+
+    for (idx=0 ; idx<numWords-2 ; idx++) {
+	tokenPtr = TokenAfter(tokenPtr);
+
+	/*
+	 * Generate the next variable name.
+	 */
+
+	PushVarNameWord(interp, tokenPtr, envPtr, 0, &localIndex,
+		&isScalar, idx+2);
+
+	/*
+	 * Emit instructions to get the idx'th item out of the list value on
+	 * the stack and assign it to the variable.
+	 */
+
+	if (isScalar) {
+	    if (localIndex >= 0) {
+		TclEmitOpcode(	INST_DUP,			envPtr);
+		TclEmitInstInt4(INST_LIST_INDEX_IMM, idx,	envPtr);
+		Emit14Inst(	INST_STORE_SCALAR, localIndex,	envPtr);
+		TclEmitOpcode(	INST_POP,			envPtr);
+	    } else {
+		TclEmitInstInt4(INST_OVER, 1,			envPtr);
+		TclEmitInstInt4(INST_LIST_INDEX_IMM, idx,	envPtr);
+		TclEmitOpcode(	INST_STORE_STK,			envPtr);
+		TclEmitOpcode(	INST_POP,			envPtr);
+	    }
+	} else {
+	    if (localIndex >= 0) {
+		TclEmitInstInt4(INST_OVER, 1,			envPtr);
+		TclEmitInstInt4(INST_LIST_INDEX_IMM, idx,	envPtr);
+		Emit14Inst(	INST_STORE_ARRAY, localIndex,	envPtr);
+		TclEmitOpcode(	INST_POP,			envPtr);
+	    } else {
+		TclEmitInstInt4(INST_OVER, 2,			envPtr);
+		TclEmitInstInt4(INST_LIST_INDEX_IMM, idx,	envPtr);
+		TclEmitOpcode(	INST_STORE_ARRAY_STK,		envPtr);
+		TclEmitOpcode(	INST_POP,			envPtr);
+	    }
+	}
+    }
+
+    /*
+     * Generate code to leave the rest of the list on the stack.
+     */
+
+    TclEmitInstInt4(		INST_LIST_RANGE_IMM, idx,	envPtr);
+    TclEmitInt4(			INDEX_END,		envPtr);
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileLindexCmd --
+ *
+ *	Procedure called to compile the "lindex" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "lindex" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileLindexCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *idxTokenPtr, *valTokenPtr;
+    int i, idx, numWords = parsePtr->numWords;
+    DefineLineInformation;	/* TIP #280 */
+
+    /*
+     * Quit if too few args.
+     */
+
+    /* TODO: Consider support for compiling expanded args. */
+    if (numWords <= 1) {
+	return TCL_ERROR;
+    }
+
+    valTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    if (numWords != 3) {
+	goto emitComplexLindex;
+    }
+
+    idxTokenPtr = TokenAfter(valTokenPtr);
+    if (GetIndexFromToken(idxTokenPtr, &idx) == TCL_OK) {
+	/*
+	 * All checks have been completed, and we have exactly one of these
+	 * constructs:
+	 *	 lindex <arbitraryValue> <posInt>
+	 *	 lindex <arbitraryValue> end-<posInt>
+	 * This is best compiled as a push of the arbitrary value followed by
+	 * an "immediate lindex" which is the most efficient variety.
+	 */
+
+	CompileWord(envPtr, valTokenPtr, interp, 1);
+	TclEmitInstInt4(	INST_LIST_INDEX_IMM, idx,	envPtr);
+	return TCL_OK;
+    }
+
+    /*
+     * If the value was not known at compile time, the conversion failed or
+     * the value was negative, we just keep on going with the more complex
+     * compilation.
+     */
+
+    /*
+     * Push the operands onto the stack.
+     */
+
+  emitComplexLindex:
+    for (i=1 ; i<numWords ; i++) {
+	CompileWord(envPtr, valTokenPtr, interp, i);
+	valTokenPtr = TokenAfter(valTokenPtr);
+    }
+
+    /*
+     * Emit INST_LIST_INDEX if objc==3, or INST_LIST_INDEX_MULTI if there are
+     * multiple index args.
+     */
+
+    if (numWords == 3) {
+	TclEmitOpcode(		INST_LIST_INDEX,		envPtr);
+    } else {
+	TclEmitInstInt4(	INST_LIST_INDEX_MULTI, numWords-1, envPtr);
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileListCmd --
+ *
+ *	Procedure called to compile the "list" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "list" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileListCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *valueTokenPtr;
+    int i, numWords, concat, build;
+    Tcl_Obj *listObj, *objPtr;
+
+    if (parsePtr->numWords == 1) {
+	/*
+	 * [list] without arguments just pushes an empty object.
+	 */
+
+	PushStringLiteral(envPtr, "");
+	return TCL_OK;
+    }
+
+    /*
+     * Test if all arguments are compile-time known. If they are, we can
+     * implement with a simple push.
+     */
+
+    numWords = parsePtr->numWords;
+    valueTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    listObj = Tcl_NewObj();
+    for (i = 1; i < numWords && listObj != NULL; i++) {
+	objPtr = Tcl_NewObj();
+	if (TclWordKnownAtCompileTime(valueTokenPtr, objPtr)) {
+	    (void) Tcl_ListObjAppendElement(NULL, listObj, objPtr);
+	} else {
+	    Tcl_DecrRefCount(objPtr);
+	    Tcl_DecrRefCount(listObj);
+	    listObj = NULL;
+	}
+	valueTokenPtr = TokenAfter(valueTokenPtr);
+    }
+    if (listObj != NULL) {
+	TclEmitPush(TclAddLiteralObj(envPtr, listObj, NULL), envPtr);
+	return TCL_OK;
+    }
+
+    /*
+     * Push the all values onto the stack.
+     */
+
+    numWords = parsePtr->numWords;
+    valueTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    concat = build = 0;
+    for (i = 1; i < numWords; i++) {
+	if (valueTokenPtr->type == TCL_TOKEN_EXPAND_WORD && build > 0) {
+	    TclEmitInstInt4(	INST_LIST, build,	envPtr);
+	    if (concat) {
+		TclEmitOpcode(	INST_LIST_CONCAT,	envPtr);
+	    }
+	    build = 0;
+	    concat = 1;
+	}
+	CompileWord(envPtr, valueTokenPtr, interp, i);
+	if (valueTokenPtr->type == TCL_TOKEN_EXPAND_WORD) {
+	    if (concat) {
+		TclEmitOpcode(	INST_LIST_CONCAT,	envPtr);
+	    } else {
+		concat = 1;
+	    }
+	} else {
+	    build++;
+	}
+	valueTokenPtr = TokenAfter(valueTokenPtr);
+    }
+    if (build > 0) {
+	TclEmitInstInt4(	INST_LIST, build,	envPtr);
+	if (concat) {
+	    TclEmitOpcode(	INST_LIST_CONCAT,	envPtr);
+	}
+    }
+
+    /*
+     * If there was just one expanded word, we must ensure that it is a list
+     * at this point. We use an [lrange ... 0 end] for this (instead of
+     * [llength], as with literals) as we must drop any string representation
+     * that might be hanging around.
+     */
+
+    if (concat && numWords == 2) {
+	TclEmitInstInt4(	INST_LIST_RANGE_IMM, 0,	envPtr);
+	TclEmitInt4(			INDEX_END,	envPtr);
+    }
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileLlengthCmd --
+ *
+ *	Procedure called to compile the "llength" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "llength" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileLlengthCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *varTokenPtr;
+    DefineLineInformation;	/* TIP #280 */
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    CompileWord(envPtr, varTokenPtr, interp, 1);
+    TclEmitOpcode(		INST_LIST_LENGTH,		envPtr);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileLrangeCmd --
+ *
+ *	How to compile the "lrange" command. We only bother because we needed
+ *	the opcode anyway for "lassign".
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileLrangeCmd(
+    Tcl_Interp *interp,		/* Tcl interpreter for context. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
+				 * command. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds the resulting instructions. */
+{
+    Tcl_Token *tokenPtr, *listTokenPtr;
+    DefineLineInformation;	/* TIP #280 */
+    int idx1, idx2;
+
+    if (parsePtr->numWords != 4) {
+	return TCL_ERROR;
+    }
+    listTokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    /*
+     * Parse the indices. Will only compile if both are constants and not an
+     * _integer_ less than zero (since we reserve negative indices here for
+     * end-relative indexing) or an end-based index greater than 'end' itself.
+     */
+
+    tokenPtr = TokenAfter(listTokenPtr);
+    if (GetIndexFromToken(tokenPtr, &idx1) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    tokenPtr = TokenAfter(tokenPtr);
+    if (GetIndexFromToken(tokenPtr, &idx2) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Issue instructions. It's not safe to skip doing the LIST_RANGE, as
+     * we've not proved that the 'list' argument is really a list. Not that it
+     * is worth trying to do that given current knowledge.
+     */
+
+    CompileWord(envPtr, listTokenPtr, interp, 1);
+    TclEmitInstInt4(		INST_LIST_RANGE_IMM, idx1,	envPtr);
+    TclEmitInt4(		idx2,				envPtr);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileLinsertCmd --
+ *
+ *	How to compile the "linsert" command. We only bother with the case
+ *	where the index is constant.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileLinsertCmd(
+    Tcl_Interp *interp,		/* Tcl interpreter for context. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
+				 * command. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds the resulting instructions. */
+{
+    Tcl_Token *tokenPtr, *listTokenPtr;
+    DefineLineInformation;	/* TIP #280 */
+    int idx, i;
+
+    if (parsePtr->numWords < 3) {
+	return TCL_ERROR;
+    }
+    listTokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    /*
+     * Parse the index. Will only compile if it is constant and not an
+     * _integer_ less than zero (since we reserve negative indices here for
+     * end-relative indexing) or an end-based index greater than 'end' itself.
+     */
+
+    tokenPtr = TokenAfter(listTokenPtr);
+    if (GetIndexFromToken(tokenPtr, &idx) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * There are four main cases. If there are no values to insert, this is
+     * just a confirm-listiness check. If the index is '0', this is a prepend.
+     * If the index is 'end' (== INDEX_END), this is an append. Otherwise,
+     * this is a splice (== split, insert values as list, concat-3).
+     */
+
+    CompileWord(envPtr, listTokenPtr, interp, 1);
+    if (parsePtr->numWords == 3) {
+	TclEmitInstInt4(	INST_LIST_RANGE_IMM, 0,		envPtr);
+	TclEmitInt4(			INDEX_END,		envPtr);
+	return TCL_OK;
+    }
+
+    for (i=3 ; i<parsePtr->numWords ; i++) {
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, i);
+    }
+    TclEmitInstInt4(		INST_LIST, i-3,			envPtr);
+
+    if (idx == 0 /*start*/) {
+	TclEmitInstInt4(	INST_REVERSE, 2,		envPtr);
+	TclEmitOpcode(		INST_LIST_CONCAT,		envPtr);
+    } else if (idx == INDEX_END /*end*/) {
+	TclEmitOpcode(		INST_LIST_CONCAT,		envPtr);
+    } else {
+	if (idx < 0) {
+	    idx++;
+	}
+	TclEmitInstInt4(	INST_OVER, 1,			envPtr);
+	TclEmitInstInt4(	INST_LIST_RANGE_IMM, 0,		envPtr);
+	TclEmitInt4(			idx-1,			envPtr);
+	TclEmitInstInt4(	INST_REVERSE, 3,		envPtr);
+	TclEmitInstInt4(	INST_LIST_RANGE_IMM, idx,	envPtr);
+	TclEmitInt4(			INDEX_END,		envPtr);
+	TclEmitOpcode(		INST_LIST_CONCAT,		envPtr);
+	TclEmitOpcode(		INST_LIST_CONCAT,		envPtr);
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileLreplaceCmd --
+ *
+ *	How to compile the "lreplace" command. We only bother with the case
+ *	where the indices are constant.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileLreplaceCmd(
+    Tcl_Interp *interp,		/* Tcl interpreter for context. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
+				 * command. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds the resulting instructions. */
+{
+    Tcl_Token *tokenPtr, *listTokenPtr;
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Obj *tmpObj;
+    int idx1, idx2, i, offset, offset2;
+
+    if (parsePtr->numWords < 4) {
+	return TCL_ERROR;
+    }
+    listTokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    /*
+     * Parse the indices. Will only compile if both are constants and not an
+     * _integer_ less than zero (since we reserve negative indices here for
+     * end-relative indexing) or an end-based index greater than 'end' itself.
+     */
+
+    tokenPtr = TokenAfter(listTokenPtr);
+    if (GetIndexFromToken(tokenPtr, &idx1) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    tokenPtr = TokenAfter(tokenPtr);
+    if (GetIndexFromToken(tokenPtr, &idx2) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    if(idx2 != INDEX_END && idx2 < idx1) {
+	idx2 = idx1-1;
+    }
+
+    /*
+     * Work out what this [lreplace] is actually doing.
+     */
+
+    tmpObj = NULL;
+    CompileWord(envPtr, listTokenPtr, interp, 1);
+    if (parsePtr->numWords == 4) {
+	if (idx1 == 0) {
+	    if (idx2 == INDEX_END) {
+		goto dropAll;
+	    }
+	    idx1 = idx2 + 1;
+	    idx2 = INDEX_END;
+	    goto dropEnd;
+	} else if (idx2 == INDEX_END) {
+	    idx2 = idx1 - 1;
+	    idx1 = 0;
+	    goto dropEnd;
+	} else {
+	    if (idx1 > 0) {
+		tmpObj = Tcl_NewIntObj(idx1);
+		Tcl_IncrRefCount(tmpObj);
+	    }
+	    goto dropRange;
+	}
+    }
+
+    tokenPtr = TokenAfter(tokenPtr);
+    for (i=4 ; i<parsePtr->numWords ; i++) {
+	CompileWord(envPtr, tokenPtr, interp, i);
+	tokenPtr = TokenAfter(tokenPtr);
+    }
+    TclEmitInstInt4(		INST_LIST, i - 4,		envPtr);
+    TclEmitInstInt4(		INST_REVERSE, 2,		envPtr);
+    if (idx1 == 0) {
+	if (idx2 == INDEX_END) {
+	    goto replaceAll;
+	}
+	idx1 = idx2 + 1;
+	idx2 = INDEX_END;
+	goto replaceHead;
+    } else if (idx2 == INDEX_END) {
+	idx2 = idx1 - 1;
+	idx1 = 0;
+	goto replaceTail;
+    } else {
+	if (idx1 > 0 && idx2 > 0 && idx2 < idx1) {
+	    idx2 = idx1 - 1;
+	} else if (idx1 < 0 && idx2 < 0 && idx2 < idx1) {
+	    idx2 = idx1 - 1;
+	}
+	if (idx1 > 0) {
+	    tmpObj = Tcl_NewIntObj(idx1);
+	    Tcl_IncrRefCount(tmpObj);
+	}
+	goto replaceRange;
+    }
+
+    /*
+     * Issue instructions to perform the operations relating to configurations
+     * that just drop. The only argument pushed on the stack is the list to
+     * operate on.
+     */
+
+  dropAll:
+    TclEmitOpcode(		INST_LIST_LENGTH,		envPtr);
+    TclEmitOpcode(		INST_POP,			envPtr);
+    PushStringLiteral(envPtr,	"");
+    goto done;
+
+  dropEnd:
+    TclEmitInstInt4(		INST_LIST_RANGE_IMM, idx1,	envPtr);
+    TclEmitInt4(			idx2,			envPtr);
+    goto done;
+
+  dropRange:
+    if (tmpObj != NULL) {
+	TclEmitOpcode(		INST_DUP,			envPtr);
+	TclEmitOpcode(		INST_LIST_LENGTH,		envPtr);
+	TclEmitPush(TclAddLiteralObj(envPtr, tmpObj, NULL),	envPtr);
+	TclEmitOpcode(		INST_GT,			envPtr);
+	offset = CurrentOffset(envPtr);
+	TclEmitInstInt1(	INST_JUMP_TRUE1, 0,		envPtr);
+	TclEmitOpcode(		INST_DUP,			envPtr);
+	TclEmitOpcode(		INST_LIST_LENGTH,		envPtr);
+	offset2 = CurrentOffset(envPtr);
+	TclEmitInstInt1(	INST_JUMP_FALSE1, 0,		envPtr);
+	TclEmitPush(TclAddLiteralObj(envPtr, Tcl_ObjPrintf(
+		"list doesn't contain element %d", idx1), NULL), envPtr);
+	CompileReturnInternal(envPtr, INST_RETURN_IMM, TCL_ERROR, 0,
+		Tcl_ObjPrintf("-errorcode {TCL OPERATION LREPLACE BADIDX}"));
+	TclStoreInt1AtPtr(CurrentOffset(envPtr) - offset,
+		envPtr->codeStart + offset + 1);
+	TclStoreInt1AtPtr(CurrentOffset(envPtr) - offset2,
+		envPtr->codeStart + offset2 + 1);
+	TclAdjustStackDepth(-1, envPtr);
+    }
+    TclEmitOpcode(		INST_DUP,			envPtr);
+    TclEmitInstInt4(		INST_LIST_RANGE_IMM, 0,		envPtr);
+    TclEmitInt4(			idx1 - 1,		envPtr);
+    TclEmitInstInt4(		INST_REVERSE, 2,		envPtr);
+    TclEmitInstInt4(		INST_LIST_RANGE_IMM, idx2 + 1,	envPtr);
+    TclEmitInt4(			INDEX_END,		envPtr);
+    TclEmitOpcode(		INST_LIST_CONCAT,		envPtr);
+    goto done;
+
+    /*
+     * Issue instructions to perform the operations relating to configurations
+     * that do real replacement. All arguments are pushed and assembled into a
+     * pair: the list of values to replace with, and the list to do the
+     * surgery on.
+     */
+
+  replaceAll:
+    TclEmitOpcode(		INST_LIST_LENGTH,		envPtr);
+    TclEmitOpcode(		INST_POP,			envPtr);
+    goto done;
+
+  replaceHead:
+    TclEmitInstInt4(		INST_LIST_RANGE_IMM, idx1,	envPtr);
+    TclEmitInt4(			idx2,			envPtr);
+    TclEmitOpcode(		INST_LIST_CONCAT,		envPtr);
+    goto done;
+
+  replaceTail:
+    TclEmitInstInt4(		INST_LIST_RANGE_IMM, idx1,	envPtr);
+    TclEmitInt4(			idx2,			envPtr);
+    TclEmitInstInt4(		INST_REVERSE, 2,		envPtr);
+    TclEmitOpcode(		INST_LIST_CONCAT,		envPtr);
+    goto done;
+
+  replaceRange:
+    if (tmpObj != NULL) {
+	TclEmitOpcode(		INST_DUP,			envPtr);
+	TclEmitOpcode(		INST_LIST_LENGTH,		envPtr);
+	TclEmitPush(TclAddLiteralObj(envPtr, tmpObj, NULL),	envPtr);
+	TclEmitOpcode(		INST_GT,			envPtr);
+	offset = CurrentOffset(envPtr);
+	TclEmitInstInt1(	INST_JUMP_TRUE1, 0,		envPtr);
+	TclEmitOpcode(		INST_DUP,			envPtr);
+	TclEmitOpcode(		INST_LIST_LENGTH,		envPtr);
+	offset2 = CurrentOffset(envPtr);
+	TclEmitInstInt1(	INST_JUMP_TRUE1, 0,		envPtr);
+	TclEmitPush(TclAddLiteralObj(envPtr, Tcl_ObjPrintf(
+		"list doesn't contain element %d", idx1), NULL), envPtr);
+	CompileReturnInternal(envPtr, INST_RETURN_IMM, TCL_ERROR, 0,
+		Tcl_ObjPrintf("-errorcode {TCL OPERATION LREPLACE BADIDX}"));
+	TclStoreInt1AtPtr(CurrentOffset(envPtr) - offset,
+		envPtr->codeStart + offset + 1);
+	TclStoreInt1AtPtr(CurrentOffset(envPtr) - offset2,
+		envPtr->codeStart + offset2 + 1);
+	TclAdjustStackDepth(-1, envPtr);
+    }
+    TclEmitOpcode(		INST_DUP,			envPtr);
+    TclEmitInstInt4(		INST_LIST_RANGE_IMM, 0,		envPtr);
+    TclEmitInt4(			idx1 - 1,		envPtr);
+    TclEmitInstInt4(		INST_REVERSE, 2,		envPtr);
+    TclEmitInstInt4(		INST_LIST_RANGE_IMM, idx2 + 1,	envPtr);
+    TclEmitInt4(			INDEX_END,		envPtr);
+    TclEmitInstInt4(		INST_REVERSE, 3,		envPtr);
+    TclEmitOpcode(		INST_LIST_CONCAT,		envPtr);
+    TclEmitInstInt4(		INST_REVERSE, 2,		envPtr);
+    TclEmitOpcode(		INST_LIST_CONCAT,		envPtr);
+    goto done;
+
+    /*
+     * Clean up the allocated memory.
+     */
+
+  done:
+    if (tmpObj != NULL) {
+	Tcl_DecrRefCount(tmpObj);
+    }
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileLsetCmd --
+ *
+ *	Procedure called to compile the "lset" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "lset" command at
+ *	runtime.
+ *
+ * The general template for execution of the "lset" command is:
+ *	(1) Instructions to push the variable name, unless the variable is
+ *	    local to the stack frame.
+ *	(2) If the variable is an array element, instructions to push the
+ *	    array element name.
+ *	(3) Instructions to push each of zero or more "index" arguments to the
+ *	    stack, followed with the "newValue" element.
+ *	(4) Instructions to duplicate the variable name and/or array element
+ *	    name onto the top of the stack, if either was pushed at steps (1)
+ *	    and (2).
+ *	(5) The appropriate INST_LOAD_* instruction to place the original
+ *	    value of the list variable at top of stack.
+ *	(6) At this point, the stack contains:
+ *		varName? arrayElementName? index1 index2 ... newValue oldList
+ *	    The compiler emits one of INST_LSET_FLAT or INST_LSET_LIST
+ *	    according as whether there is exactly one index element (LIST) or
+ *	    either zero or else two or more (FLAT). This instruction removes
+ *	    everything from the stack except for the two names and pushes the
+ *	    new value of the variable.
+ *	(7) Finally, INST_STORE_* stores the new value in the variable and
+ *	    cleans up the stack.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileLsetCmd(
+    Tcl_Interp *interp,		/* Tcl interpreter for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
+				 * command. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds the resulting instructions. */
+{
+    int tempDepth;		/* Depth used for emitting one part of the
+				 * code burst. */
+    Tcl_Token *varTokenPtr;	/* Pointer to the Tcl_Token representing the
+				 * parse of the variable name. */
+    int localIndex;		/* Index of var in local var table. */
+    int isScalar;		/* Flag == 1 if scalar, 0 if array. */
+    int i;
+    DefineLineInformation;	/* TIP #280 */
+
+    /*
+     * Check argument count.
+     */
+
+    /* TODO: Consider support for compiling expanded args. */
+    if (parsePtr->numWords < 3) {
+	/*
+	 * Fail at run time, not in compilation.
+	 */
+
+	return TCL_ERROR;
+    }
+
+    /*
+     * Decide if we can use a frame slot for the var/array name or if we need
+     * to emit code to compute and push the name at runtime. We use a frame
+     * slot (entry in the array of local vars) if we are compiling a procedure
+     * body and if the name is simple text that does not include namespace
+     * qualifiers.
+     */
+
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    PushVarNameWord(interp, varTokenPtr, envPtr, 0,
+	    &localIndex, &isScalar, 1);
+
+    /*
+     * Push the "index" args and the new element value.
+     */
+
+    for (i=2 ; i<parsePtr->numWords ; ++i) {
+	varTokenPtr = TokenAfter(varTokenPtr);
+	CompileWord(envPtr, varTokenPtr, interp, i);
+    }
+
+    /*
+     * Duplicate the variable name if it's been pushed.
+     */
+
+    if (localIndex < 0) {
+	if (isScalar) {
+	    tempDepth = parsePtr->numWords - 2;
+	} else {
+	    tempDepth = parsePtr->numWords - 1;
+	}
+	TclEmitInstInt4(	INST_OVER, tempDepth,		envPtr);
+    }
+
+    /*
+     * Duplicate an array index if one's been pushed.
+     */
+
+    if (!isScalar) {
+	if (localIndex < 0) {
+	    tempDepth = parsePtr->numWords - 1;
+	} else {
+	    tempDepth = parsePtr->numWords - 2;
+	}
+	TclEmitInstInt4(	INST_OVER, tempDepth,		envPtr);
+    }
+
+    /*
+     * Emit code to load the variable's value.
+     */
+
+    if (isScalar) {
+	if (localIndex < 0) {
+	    TclEmitOpcode(	INST_LOAD_STK,			envPtr);
+	} else {
+	    Emit14Inst(		INST_LOAD_SCALAR, localIndex,	envPtr);
+	}
+    } else {
+	if (localIndex < 0) {
+	    TclEmitOpcode(	INST_LOAD_ARRAY_STK,		envPtr);
+	} else {
+	    Emit14Inst(		INST_LOAD_ARRAY, localIndex,	envPtr);
+	}
+    }
+
+    /*
+     * Emit the correct variety of 'lset' instruction.
+     */
+
+    if (parsePtr->numWords == 4) {
+	TclEmitOpcode(		INST_LSET_LIST,			envPtr);
+    } else {
+	TclEmitInstInt4(	INST_LSET_FLAT, parsePtr->numWords-1, envPtr);
+    }
+
+    /*
+     * Emit code to put the value back in the variable.
+     */
+
+    if (isScalar) {
+	if (localIndex < 0) {
+	    TclEmitOpcode(	INST_STORE_STK,			envPtr);
+	} else {
+	    Emit14Inst(		INST_STORE_SCALAR, localIndex,	envPtr);
+	}
+    } else {
+	if (localIndex < 0) {
+	    TclEmitOpcode(	INST_STORE_ARRAY_STK,		envPtr);
+	} else {
+	    Emit14Inst(		INST_STORE_ARRAY, localIndex,	envPtr);
+	}
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileNamespace*Cmd --
+ *
+ *	Procedures called to compile the "namespace" command; currently, only
+ *	the subcommands "namespace current" and "namespace upvar" are compiled
+ *	to bytecodes, and the latter only inside a procedure(-like) context.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "namespace upvar"
+ *	command at runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileNamespaceCurrentCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Only compile [namespace current] without arguments.
+     */
+
+    if (parsePtr->numWords != 1) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Not much to do; we compile to a single instruction...
+     */
+
+    TclEmitOpcode(		INST_NS_CURRENT,		envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileNamespaceCodeCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr;
+    DefineLineInformation;	/* TIP #280 */
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    /*
+     * The specification of [namespace code] is rather shocking, in that it is
+     * supposed to check if the argument is itself the result of [namespace
+     * code] and not apply itself in that case. Which is excessively cautious,
+     * but what the test suite checks for.
+     */
+
+    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD || (tokenPtr[1].size > 20
+	    && strncmp(tokenPtr[1].start, "::namespace inscope ", 20) == 0)) {
+	/*
+	 * Technically, we could just pass a literal '::namespace inscope '
+	 * term through, but that's something which really shouldn't be
+	 * occurring as something that the user writes so we'll just punt it.
+	 */
+
+	return TCL_ERROR;
+    }
+
+    /*
+     * Now we can compile using the same strategy as [namespace code]'s normal
+     * implementation does internally. Note that we can't bind the namespace
+     * name directly here, because TclOO plays complex games with namespaces;
+     * the value needs to be determined at runtime for safety.
+     */
+
+    PushStringLiteral(envPtr,		"::namespace");
+    PushStringLiteral(envPtr,		"inscope");
+    TclEmitOpcode(		INST_NS_CURRENT,	envPtr);
+    CompileWord(envPtr,		tokenPtr,		interp, 1);
+    TclEmitInstInt4(		INST_LIST, 4,		envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileNamespaceOriginCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr;
+    DefineLineInformation;	/* TIP #280 */
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+    CompileWord(envPtr,	tokenPtr,			interp, 1);
+    TclEmitOpcode(	INST_ORIGIN_COMMAND,		envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileNamespaceQualifiersCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    DefineLineInformation;	/* TIP #280 */
+    int off;
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+
+    CompileWord(envPtr, tokenPtr, interp, 1);
+    PushStringLiteral(envPtr, "0");
+    PushStringLiteral(envPtr, "::");
+    TclEmitInstInt4(	INST_OVER, 2,			envPtr);
+    TclEmitOpcode(	INST_STR_FIND_LAST,		envPtr);
+    off = CurrentOffset(envPtr);
+    PushStringLiteral(envPtr, "1");
+    TclEmitOpcode(	INST_SUB,			envPtr);
+    TclEmitInstInt4(	INST_OVER, 2,			envPtr);
+    TclEmitInstInt4(	INST_OVER, 1,			envPtr);
+    TclEmitOpcode(	INST_STR_INDEX,			envPtr);
+    PushStringLiteral(envPtr, ":");
+    TclEmitOpcode(	INST_STR_EQ,			envPtr);
+    off = off - CurrentOffset(envPtr);
+    TclEmitInstInt1(	INST_JUMP_TRUE1, off,		envPtr);
+    TclEmitOpcode(	INST_STR_RANGE,			envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileNamespaceTailCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    DefineLineInformation;	/* TIP #280 */
+    JumpFixup jumpFixup;
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Take care; only add 2 to found index if the string was actually found.
+     */
+
+    CompileWord(envPtr, tokenPtr, interp, 1);
+    PushStringLiteral(envPtr, "::");
+    TclEmitInstInt4(	INST_OVER, 1,			envPtr);
+    TclEmitOpcode(	INST_STR_FIND_LAST,		envPtr);
+    TclEmitOpcode(	INST_DUP,			envPtr);
+    PushStringLiteral(envPtr, "0");
+    TclEmitOpcode(	INST_GE,			envPtr);
+    TclEmitForwardJump(envPtr, TCL_FALSE_JUMP, &jumpFixup);
+    PushStringLiteral(envPtr, "2");
+    TclEmitOpcode(	INST_ADD,			envPtr);
+    TclFixupForwardJumpToHere(envPtr, &jumpFixup, 127);
+    PushStringLiteral(envPtr, "end");
+    TclEmitOpcode(	INST_STR_RANGE,			envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileNamespaceUpvarCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr, *otherTokenPtr, *localTokenPtr;
+    int localIndex, numWords, i;
+    DefineLineInformation;	/* TIP #280 */
+
+    if (envPtr->procPtr == NULL) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Only compile [namespace upvar ...]: needs an even number of args, >=4
+     */
+
+    numWords = parsePtr->numWords;
+    if ((numWords % 2) || (numWords < 4)) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Push the namespace
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr, interp, 1);
+
+    /*
+     * Loop over the (otherVar, thisVar) pairs. If any of the thisVar is not a
+     * local variable, return an error so that the non-compiled command will
+     * be called at runtime.
+     */
+
+    localTokenPtr = tokenPtr;
+    for (i=2; i<numWords; i+=2) {
+	otherTokenPtr = TokenAfter(localTokenPtr);
+	localTokenPtr = TokenAfter(otherTokenPtr);
+
+	CompileWord(envPtr, otherTokenPtr, interp, i);
+	localIndex = LocalScalarFromToken(localTokenPtr, envPtr);
+	if (localIndex < 0) {
+	    return TCL_ERROR;
+	}
+	TclEmitInstInt4(	INST_NSUPVAR, localIndex,	envPtr);
+    }
+
+    /*
+     * Pop the namespace, and set the result to empty
+     */
+
+    TclEmitOpcode(		INST_POP,			envPtr);
+    PushStringLiteral(envPtr, "");
+    return TCL_OK;
+}
+
+int
+TclCompileNamespaceWhichCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr, *opt;
+    int idx;
+
+    if (parsePtr->numWords < 2 || parsePtr->numWords > 3) {
+	return TCL_ERROR;
+    }
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    idx = 1;
+
+    /*
+     * If there's an option, check that it's "-command". We don't handle
+     * "-variable" (currently) and anything else is an error.
+     */
+
+    if (parsePtr->numWords == 3) {
+	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+	    return TCL_ERROR;
+	}
+	opt = tokenPtr + 1;
+	if (opt->size < 2 || opt->size > 8
+		|| strncmp(opt->start, "-command", opt->size) != 0) {
+	    return TCL_ERROR;
+	}
+	tokenPtr = TokenAfter(tokenPtr);
+	idx++;
+    }
+
+    /*
+     * Issue the bytecode.
+     */
+
+    CompileWord(envPtr,		tokenPtr,		interp, idx);
+    TclEmitOpcode(		INST_RESOLVE_COMMAND,	envPtr);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileRegexpCmd --
+ *
+ *	Procedure called to compile the "regexp" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "regexp" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileRegexpCmd(
+    Tcl_Interp *interp,		/* Tcl interpreter for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
+				 * command. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds the resulting instructions. */
+{
+    Tcl_Token *varTokenPtr;	/* Pointer to the Tcl_Token representing the
+				 * parse of the RE or string. */
+    int i, len, nocase, exact, sawLast, simple;
+    const char *str;
+    DefineLineInformation;	/* TIP #280 */
+
+    /*
+     * We are only interested in compiling simple regexp cases. Currently
+     * supported compile cases are:
+     *   regexp ?-nocase? ?--? staticString $var
+     *   regexp ?-nocase? ?--? {^staticString$} $var
+     */
+
+    if (parsePtr->numWords < 3) {
+	return TCL_ERROR;
+    }
+
+    simple = 0;
+    nocase = 0;
+    sawLast = 0;
+    varTokenPtr = parsePtr->tokenPtr;
+
+    /*
+     * We only look for -nocase and -- as options. Everything else gets pushed
+     * to runtime execution. This is different than regexp's runtime option
+     * handling, but satisfies our stricter needs.
+     */
+
+    for (i = 1; i < parsePtr->numWords - 2; i++) {
+	varTokenPtr = TokenAfter(varTokenPtr);
+	if (varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+	    /*
+	     * Not a simple string, so punt to runtime.
+	     */
+
+	    return TCL_ERROR;
+	}
+	str = varTokenPtr[1].start;
+	len = varTokenPtr[1].size;
+	if ((len == 2) && (str[0] == '-') && (str[1] == '-')) {
+	    sawLast++;
+	    i++;
+	    break;
+	} else if ((len > 1) && (strncmp(str,"-nocase",(unsigned)len) == 0)) {
+	    nocase = 1;
+	} else {
+	    /*
+	     * Not an option we recognize.
+	     */
+
+	    return TCL_ERROR;
+	}
+    }
+
+    if ((parsePtr->numWords - i) != 2) {
+	/*
+	 * We don't support capturing to variables.
+	 */
+
+	return TCL_ERROR;
+    }
+
+    /*
+     * Get the regexp string. If it is not a simple string or can't be
+     * converted to a glob pattern, push the word for the INST_REGEXP.
+     * Keep changes here in sync with TclCompileSwitchCmd Switch_Regexp.
+     */
+
+    varTokenPtr = TokenAfter(varTokenPtr);
+
+    if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
+	Tcl_DString ds;
+
+	str = varTokenPtr[1].start;
+	len = varTokenPtr[1].size;
+
+	/*
+	 * If it has a '-', it could be an incorrectly formed regexp command.
+	 */
+
+	if ((*str == '-') && !sawLast) {
+	    return TCL_ERROR;
+	}
+
+	if (len == 0) {
+	    /*
+	     * The semantics of regexp are always match on re == "".
+	     */
+
+	    PushStringLiteral(envPtr, "1");
+	    return TCL_OK;
+	}
+
+	/*
+	 * Attempt to convert pattern to glob.  If successful, push the
+	 * converted pattern as a literal.
+	 */
+
+	if (TclReToGlob(NULL, varTokenPtr[1].start, len, &ds, &exact, NULL)
+		== TCL_OK) {
+	    simple = 1;
+	    PushLiteral(envPtr, Tcl_DStringValue(&ds),Tcl_DStringLength(&ds));
+	    Tcl_DStringFree(&ds);
+	}
+    }
+
+    if (!simple) {
+	CompileWord(envPtr, varTokenPtr, interp, parsePtr->numWords-2);
+    }
+
+    /*
+     * Push the string arg.
+     */
+
+    varTokenPtr = TokenAfter(varTokenPtr);
+    CompileWord(envPtr, varTokenPtr, interp, parsePtr->numWords-1);
+
+    if (simple) {
+	if (exact && !nocase) {
+	    TclEmitOpcode(	INST_STR_EQ,			envPtr);
+	} else {
+	    TclEmitInstInt1(	INST_STR_MATCH, nocase,		envPtr);
+	}
+    } else {
+	/*
+	 * Pass correct RE compile flags.  We use only Int1 (8-bit), but
+	 * that handles all the flags we want to pass.
+	 * Don't use TCL_REG_NOSUB as we may have backrefs.
+	 */
+
+	int cflags = TCL_REG_ADVANCED | (nocase ? TCL_REG_NOCASE : 0);
+
+	TclEmitInstInt1(	INST_REGEXP, cflags,		envPtr);
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileRegsubCmd --
+ *
+ *	Procedure called to compile the "regsub" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "regsub" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileRegsubCmd(
+    Tcl_Interp *interp,		/* Tcl interpreter for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
+				 * command. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds the resulting instructions. */
+{
+    /*
+     * We only compile the case with [regsub -all] where the pattern is both
+     * known at compile time and simple (i.e., no RE metacharacters). That is,
+     * the pattern must be translatable into a glob like "*foo*" with no other
+     * glob metacharacters inside it; there must be some "foo" in there too.
+     * The substitution string must also be known at compile time and free of
+     * metacharacters ("\digit" and "&"). Finally, there must not be a
+     * variable mentioned in the [regsub] to write the result back to (because
+     * we can't get the count of substitutions that would be the result in
+     * that case). The key is that these are the conditions under which a
+     * [string map] could be used instead, in particular a [string map] of the
+     * form we can compile to bytecode.
+     *
+     * In short, we look for:
+     *
+     *   regsub -all [--] simpleRE string simpleReplacement
+     *
+     * The only optional part is the "--", and no other options are handled.
+     */
+
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr, *stringTokenPtr;
+    Tcl_Obj *patternObj = NULL, *replacementObj = NULL;
+    Tcl_DString pattern;
+    const char *bytes;
+    int len, exact, quantified, result = TCL_ERROR;
+
+    if (parsePtr->numWords < 5 || parsePtr->numWords > 6) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Parse the "-all", which must be the first argument (other options not
+     * supported, non-"-all" substitution we can't compile).
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD || tokenPtr[1].size != 4
+	    || strncmp(tokenPtr[1].start, "-all", 4)) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Get the pattern into patternObj, checking for "--" in the process.
+     */
+
+    Tcl_DStringInit(&pattern);
+    tokenPtr = TokenAfter(tokenPtr);
+    patternObj = Tcl_NewObj();
+    if (!TclWordKnownAtCompileTime(tokenPtr, patternObj)) {
+	goto done;
+    }
+    if (Tcl_GetString(patternObj)[0] == '-') {
+	if (strcmp(Tcl_GetString(patternObj), "--") != 0
+		|| parsePtr->numWords == 5) {
+	    goto done;
+	}
+	tokenPtr = TokenAfter(tokenPtr);
+	Tcl_DecrRefCount(patternObj);
+	patternObj = Tcl_NewObj();
+	if (!TclWordKnownAtCompileTime(tokenPtr, patternObj)) {
+	    goto done;
+	}
+    } else if (parsePtr->numWords == 6) {
+	goto done;
+    }
+
+    /*
+     * Identify the code which produces the string to apply the substitution
+     * to (stringTokenPtr), and the replacement string (into replacementObj).
+     */
+
+    stringTokenPtr = TokenAfter(tokenPtr);
+    tokenPtr = TokenAfter(stringTokenPtr);
+    replacementObj = Tcl_NewObj();
+    if (!TclWordKnownAtCompileTime(tokenPtr, replacementObj)) {
+	goto done;
+    }
+
+    /*
+     * Next, higher-level checks. Is the RE a very simple glob? Is the
+     * replacement "simple"?
+     */
+
+    bytes = Tcl_GetStringFromObj(patternObj, &len);
+    if (TclReToGlob(NULL, bytes, len, &pattern, &exact, &quantified)
+	    != TCL_OK || exact || quantified) {
+	goto done;
+    }
+    bytes = Tcl_DStringValue(&pattern);
+    if (*bytes++ != '*') {
+	goto done;
+    }
+    while (1) {
+	switch (*bytes) {
+	case '*':
+	    if (bytes[1] == '\0') {
+		/*
+		 * OK, we've proved there are no metacharacters except for the
+		 * '*' at each end.
+		 */
+
+		len = Tcl_DStringLength(&pattern) - 2;
+		if (len > 0) {
+		    goto isSimpleGlob;
+		}
+
+		/*
+		 * The pattern is "**"! I believe that should be impossible,
+		 * but we definitely can't handle that at all.
+		 */
+	    }
+	case '\0': case '?': case '[': case '\\':
+	    goto done;
+	}
+	bytes++;
+    }
+  isSimpleGlob:
+    for (bytes = Tcl_GetString(replacementObj); *bytes; bytes++) {
+	switch (*bytes) {
+	case '\\': case '&':
+	    goto done;
+	}
+    }
+
+    /*
+     * Proved the simplicity constraints! Time to issue the code.
+     */
+
+    result = TCL_OK;
+    bytes = Tcl_DStringValue(&pattern) + 1;
+    PushLiteral(envPtr,	bytes, len);
+    bytes = Tcl_GetStringFromObj(replacementObj, &len);
+    PushLiteral(envPtr,	bytes, len);
+    CompileWord(envPtr,	stringTokenPtr, interp, parsePtr->numWords-2);
+    TclEmitOpcode(	INST_STR_MAP,	envPtr);
+
+  done:
+    Tcl_DStringFree(&pattern);
+    if (patternObj) {
+	Tcl_DecrRefCount(patternObj);
+    }
+    if (replacementObj) {
+	Tcl_DecrRefCount(replacementObj);
+    }
+    return result;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileReturnCmd --
+ *
+ *	Procedure called to compile the "return" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "return" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileReturnCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * General syntax: [return ?-option value ...? ?result?]
+     * An even number of words means an explicit result argument is present.
+     */
+    int level, code, objc, size, status = TCL_OK;
+    int numWords = parsePtr->numWords;
+    int explicitResult = (0 == (numWords % 2));
+    int numOptionWords = numWords - 1 - explicitResult;
+    Tcl_Obj *returnOpts, **objv;
+    Tcl_Token *wordTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    DefineLineInformation;	/* TIP #280 */
+
+    /*
+     * Check for special case which can always be compiled:
+     *	    return -options <opts> <msg>
+     * Unlike the normal [return] compilation, this version does everything at
+     * runtime so it can handle arbitrary words and not just literals. Note
+     * that if INST_RETURN_STK wasn't already needed for something else
+     * ('finally' clause processing) this piece of code would not be present.
+     */
+
+    if ((numWords == 4) && (wordTokenPtr->type == TCL_TOKEN_SIMPLE_WORD)
+	    && (wordTokenPtr[1].size == 8)
+	    && (strncmp(wordTokenPtr[1].start, "-options", 8) == 0)) {
+	Tcl_Token *optsTokenPtr = TokenAfter(wordTokenPtr);
+	Tcl_Token *msgTokenPtr = TokenAfter(optsTokenPtr);
+
+	CompileWord(envPtr, optsTokenPtr, interp, 2);
+	CompileWord(envPtr, msgTokenPtr,  interp, 3);
+	TclEmitInvoke(envPtr, INST_RETURN_STK);
+	return TCL_OK;
+    }
+
+    /*
+     * Allocate some working space.
+     */
+
+    objv = TclStackAlloc(interp, numOptionWords * sizeof(Tcl_Obj *));
+
+    /*
+     * Scan through the return options. If any are unknown at compile time,
+     * there is no value in bytecompiling. Save the option values known in an
+     * objv array for merging into a return options dictionary.
+     *
+     * TODO: There is potential for improvement if all option keys are known
+     * at compile time and all option values relating to '-code' and '-level'
+     * are known at compile time.
+     */
+
+    for (objc = 0; objc < numOptionWords; objc++) {
+	objv[objc] = Tcl_NewObj();
+	Tcl_IncrRefCount(objv[objc]);
+	if (!TclWordKnownAtCompileTime(wordTokenPtr, objv[objc])) {
+	    /*
+	     * Non-literal, so punt to run-time assembly of the dictionary.
+	     */
+
+	    for (; objc>=0 ; objc--) {
+		TclDecrRefCount(objv[objc]);
+	    }
+	    TclStackFree(interp, objv);
+	    goto issueRuntimeReturn;
+	}
+	wordTokenPtr = TokenAfter(wordTokenPtr);
+    }
+    status = TclMergeReturnOptions(interp, objc, objv,
+	    &returnOpts, &code, &level);
+    while (--objc >= 0) {
+	TclDecrRefCount(objv[objc]);
+    }
+    TclStackFree(interp, objv);
+    if (TCL_ERROR == status) {
+	/*
+	 * Something was bogus in the return options. Clear the error message,
+	 * and report back to the compiler that this must be interpreted at
+	 * runtime.
+	 */
+
+	Tcl_ResetResult(interp);
+	return TCL_ERROR;
+    }
+
+    /*
+     * All options are known at compile time, so we're going to bytecompile.
+     * Emit instructions to push the result on the stack.
+     */
+
+    if (explicitResult) {
+	 CompileWord(envPtr, wordTokenPtr, interp, numWords-1);
+    } else {
+	/*
+	 * No explict result argument, so default result is empty string.
+	 */
+
+	PushStringLiteral(envPtr, "");
+    }
+
+    /*
+     * Check for optimization: When [return] is in a proc, and there's no
+     * enclosing [catch], and there are no return options, then the INST_DONE
+     * instruction is equivalent, and may be more efficient.
+     */
+
+    if (numOptionWords == 0 && envPtr->procPtr != NULL) {
+	/*
+	 * We have default return options and we're in a proc ...
+	 */
+
+	int index = envPtr->exceptArrayNext - 1;
+	int enclosingCatch = 0;
+
+	while (index >= 0) {
+	    ExceptionRange range = envPtr->exceptArrayPtr[index];
+
+	    if ((range.type == CATCH_EXCEPTION_RANGE)
+		    && (range.catchOffset == -1)) {
+		enclosingCatch = 1;
+		break;
+	    }
+	    index--;
+	}
+	if (!enclosingCatch) {
+	    /*
+	     * ... and there is no enclosing catch. Issue the maximally
+	     * efficient exit instruction.
+	     */
+
+	    Tcl_DecrRefCount(returnOpts);
+	    TclEmitOpcode(INST_DONE, envPtr);
+	    TclAdjustStackDepth(1, envPtr);
+	    return TCL_OK;
+	}
+    }
+
+    /* Optimize [return -level 0 $x]. */
+    Tcl_DictObjSize(NULL, returnOpts, &size);
+    if (size == 0 && level == 0 && code == TCL_OK) {
+	Tcl_DecrRefCount(returnOpts);
+	return TCL_OK;
+    }
+
+    /*
+     * Could not use the optimization, so we push the return options dict, and
+     * emit the INST_RETURN_IMM instruction with code and level as operands.
+     */
+
+    CompileReturnInternal(envPtr, INST_RETURN_IMM, code, level, returnOpts);
+    return TCL_OK;
+
+  issueRuntimeReturn:
+    /*
+     * Assemble the option dictionary (as a list as that's good enough).
+     */
+
+    wordTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    for (objc=1 ; objc<=numOptionWords ; objc++) {
+	CompileWord(envPtr, wordTokenPtr, interp, objc);
+	wordTokenPtr = TokenAfter(wordTokenPtr);
+    }
+    TclEmitInstInt4(INST_LIST, numOptionWords, envPtr);
+
+    /*
+     * Push the result.
+     */
+
+    if (explicitResult) {
+	CompileWord(envPtr, wordTokenPtr, interp, numWords-1);
+    } else {
+	PushStringLiteral(envPtr, "");
+    }
+
+    /*
+     * Issue the RETURN itself.
+     */
+
+    TclEmitInvoke(envPtr, INST_RETURN_STK);
+    return TCL_OK;
+}
+
+static void
+CompileReturnInternal(
+    CompileEnv *envPtr,
+    unsigned char op,
+    int code,
+    int level,
+    Tcl_Obj *returnOpts)
+{
+    if (level == 0 && (code == TCL_BREAK || code == TCL_CONTINUE)) {
+	ExceptionRange *rangePtr;
+	ExceptionAux *exceptAux;
+
+	rangePtr = TclGetInnermostExceptionRange(envPtr, code, &exceptAux);
+	if (rangePtr && rangePtr->type == LOOP_EXCEPTION_RANGE) {
+	    TclCleanupStackForBreakContinue(envPtr, exceptAux);
+	    if (code == TCL_BREAK) {
+		TclAddLoopBreakFixup(envPtr, exceptAux);
+	    } else {
+		TclAddLoopContinueFixup(envPtr, exceptAux);
+	    }
+	    Tcl_DecrRefCount(returnOpts);
+	    return;
+	}
+    }
+
+    TclEmitPush(TclAddLiteralObj(envPtr, returnOpts, NULL), envPtr);
+    TclEmitInstInt4(op, code, envPtr);
+    TclEmitInt4(level, envPtr);
+}
+
+void
+TclCompileSyntaxError(
+    Tcl_Interp *interp,
+    CompileEnv *envPtr)
+{
+    Tcl_Obj *msg = Tcl_GetObjResult(interp);
+    int numBytes;
+    const char *bytes = TclGetStringFromObj(msg, &numBytes);
+
+    TclErrorStackResetIf(interp, bytes, numBytes);
+    TclEmitPush(TclRegisterNewLiteral(envPtr, bytes, numBytes), envPtr);
+    CompileReturnInternal(envPtr, INST_SYNTAX, TCL_ERROR, 0,
+	    TclNoErrorStack(interp, Tcl_GetReturnOptions(interp, TCL_ERROR)));
+    Tcl_ResetResult(interp);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileUpvarCmd --
+ *
+ *	Procedure called to compile the "upvar" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "upvar" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileUpvarCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr, *otherTokenPtr, *localTokenPtr;
+    int localIndex, numWords, i;
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Obj *objPtr;
+
+    if (envPtr->procPtr == NULL) {
+	return TCL_ERROR;
+    }
+
+    numWords = parsePtr->numWords;
+    if (numWords < 3) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Push the frame index if it is known at compile time
+     */
+
+    objPtr = Tcl_NewObj();
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    if (TclWordKnownAtCompileTime(tokenPtr, objPtr)) {
+	CallFrame *framePtr;
+	const Tcl_ObjType *newTypePtr, *typePtr = objPtr->typePtr;
+
+	/*
+	 * Attempt to convert to a level reference. Note that TclObjGetFrame
+	 * only changes the obj type when a conversion was successful.
+	 */
+
+	TclObjGetFrame(interp, objPtr, &framePtr);
+	newTypePtr = objPtr->typePtr;
+	Tcl_DecrRefCount(objPtr);
+
+	if (newTypePtr != typePtr) {
+	    if (numWords%2) {
+		return TCL_ERROR;
+	    }
+	    /* TODO: Push the known value instead? */
+	    CompileWord(envPtr, tokenPtr, interp, 1);
+	    otherTokenPtr = TokenAfter(tokenPtr);
+	    i = 2;
+	} else {
+	    if (!(numWords%2)) {
+		return TCL_ERROR;
+	    }
+	    PushStringLiteral(envPtr, "1");
+	    otherTokenPtr = tokenPtr;
+	    i = 1;
+	}
+    } else {
+	Tcl_DecrRefCount(objPtr);
+	return TCL_ERROR;
+    }
+
+    /*
+     * Loop over the (otherVar, thisVar) pairs. If any of the thisVar is not a
+     * local variable, return an error so that the non-compiled command will
+     * be called at runtime.
+     */
+
+    for (; i<numWords; i+=2, otherTokenPtr = TokenAfter(localTokenPtr)) {
+	localTokenPtr = TokenAfter(otherTokenPtr);
+
+	CompileWord(envPtr, otherTokenPtr, interp, i);
+	localIndex = LocalScalarFromToken(localTokenPtr, envPtr);
+	if (localIndex < 0) {
+	    return TCL_ERROR;
+	}
+	TclEmitInstInt4(	INST_UPVAR, localIndex,		envPtr);
+    }
+
+    /*
+     * Pop the frame index, and set the result to empty
+     */
+
+    TclEmitOpcode(		INST_POP,			envPtr);
+    PushStringLiteral(envPtr, "");
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileVariableCmd --
+ *
+ *	Procedure called to compile the "variable" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "variable" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileVariableCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *varTokenPtr, *valueTokenPtr;
+    int localIndex, numWords, i;
+    DefineLineInformation;	/* TIP #280 */
+
+    numWords = parsePtr->numWords;
+    if (numWords < 2) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Bail out if not compiling a proc body
+     */
+
+    if (envPtr->procPtr == NULL) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Loop over the (var, value) pairs.
+     */
+
+    valueTokenPtr = parsePtr->tokenPtr;
+    for (i=1; i<numWords; i+=2) {
+	varTokenPtr = TokenAfter(valueTokenPtr);
+	valueTokenPtr = TokenAfter(varTokenPtr);
+
+	localIndex = IndexTailVarIfKnown(interp, varTokenPtr, envPtr);
+
+	if (localIndex < 0) {
+	    return TCL_ERROR;
+	}
+
+	/* TODO: Consider what value can pass throug the 
+	 * IndexTailVarIfKnown() screen.  Full CompileWord()
+	 * likely does not apply here.  Push known value instead. */
+	CompileWord(envPtr, varTokenPtr, interp, i);
+	TclEmitInstInt4(	INST_VARIABLE, localIndex,	envPtr);
+
+	if (i+1 < numWords) {
+	    /*
+	     * A value has been given: set the variable, pop the value
+	     */
+
+	    CompileWord(envPtr, valueTokenPtr, interp, i+1);
+	    Emit14Inst(		INST_STORE_SCALAR, localIndex,	envPtr);
+	    TclEmitOpcode(	INST_POP,			envPtr);
+	}
+    }
+
+    /*
+     * Set the result to empty
+     */
+
+    PushStringLiteral(envPtr, "");
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * IndexTailVarIfKnown --
+ *
+ *	Procedure used in compiling [global] and [variable] commands. It
+ *	inspects the variable name described by varTokenPtr and, if the tail
+ *	is known at compile time, defines a corresponding local variable.
+ *
+ * Results:
+ *	Returns the variable's index in the table of compiled locals if the
+ *	tail is known at compile time, or -1 otherwise.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+IndexTailVarIfKnown(
+    Tcl_Interp *interp,
+    Tcl_Token *varTokenPtr,	/* Token representing the variable name */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Obj *tailPtr;
+    const char *tailName, *p;
+    int len, n = varTokenPtr->numComponents;
+    Tcl_Token *lastTokenPtr;
+    int full, localIndex;
+
+    /*
+     * Determine if the tail is (a) known at compile time, and (b) not an
+     * array element. Should any of these fail, return an error so that the
+     * non-compiled command will be called at runtime.
+     *
+     * In order for the tail to be known at compile time, the last token in
+     * the word has to be constant and contain "::" if it is not the only one.
+     */
+
+    if (!EnvHasLVT(envPtr)) {
+	return -1;
+    }
+
+    TclNewObj(tailPtr);
+    if (TclWordKnownAtCompileTime(varTokenPtr, tailPtr)) {
+	full = 1;
+	lastTokenPtr = varTokenPtr;
+    } else {
+	full = 0;
+	lastTokenPtr = varTokenPtr + n;
+	if (!TclWordKnownAtCompileTime(lastTokenPtr, tailPtr)) {
+	    Tcl_DecrRefCount(tailPtr);
+	    return -1;
+	}
+    }
+
+    tailName = TclGetStringFromObj(tailPtr, &len);
+
+    if (len) {
+	if (*(tailName+len-1) == ')') {
+	    /*
+	     * Possible array: bail out
+	     */
+
+	    Tcl_DecrRefCount(tailPtr);
+	    return -1;
+	}
+
+	/*
+	 * Get the tail: immediately after the last '::'
+	 */
+
+	for (p = tailName + len -1; p > tailName; p--) {
+	    if ((*p == ':') && (*(p-1) == ':')) {
+		p++;
+		break;
+	    }
+	}
+	if (!full && (p == tailName)) {
+	    /*
+	     * No :: in the last component.
+	     */
+
+	    Tcl_DecrRefCount(tailPtr);
+	    return -1;
+	}
+	len -= p - tailName;
+	tailName = p;
+    }
+
+    localIndex = TclFindCompiledLocal(tailName, len, 1, envPtr);
+    Tcl_DecrRefCount(tailPtr);
+    return localIndex;
+}
+
+/*
+ * ----------------------------------------------------------------------
+ *
+ * TclCompileObjectNextCmd, TclCompileObjectSelfCmd --
+ *
+ *	Compilations of the TclOO utility commands [next] and [self].
+ *
+ * ----------------------------------------------------------------------
+ */
+
+int
+TclCompileObjectNextCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr = parsePtr->tokenPtr;
+    int i;
+
+    if (parsePtr->numWords > 255) {
+	return TCL_ERROR;
+    }
+
+    for (i=0 ; i<parsePtr->numWords ; i++) {
+	CompileWord(envPtr, tokenPtr, interp, i);
+	tokenPtr = TokenAfter(tokenPtr);
+    }
+    TclEmitInstInt1(	INST_TCLOO_NEXT, i,		envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileObjectNextToCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr = parsePtr->tokenPtr;
+    int i;
+
+    if (parsePtr->numWords < 2 || parsePtr->numWords > 255) {
+	return TCL_ERROR;
+    }
+
+    for (i=0 ; i<parsePtr->numWords ; i++) {
+	CompileWord(envPtr, tokenPtr, interp, i);
+	tokenPtr = TokenAfter(tokenPtr);
+    }
+    TclEmitInstInt1(	INST_TCLOO_NEXT_CLASS, i,	envPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileObjectSelfCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * We only handle [self] and [self object] (which is the same operation).
+     * These are the only very common operations on [self] for which
+     * bytecoding is at all reasonable.
+     */
+
+    if (parsePtr->numWords == 1) {
+	goto compileSelfObject;
+    } else if (parsePtr->numWords == 2) {
+	Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr), *subcmd;
+
+	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD || tokenPtr[1].size==0) {
+	    return TCL_ERROR;
+	}
+
+	subcmd = tokenPtr + 1;
+	if (strncmp(subcmd->start, "object", subcmd->size) == 0) {
+	    goto compileSelfObject;
+	} else if (strncmp(subcmd->start, "namespace", subcmd->size) == 0) {
+	    goto compileSelfNamespace;
+	}
+    }
+
+    /*
+     * Can't compile; handle with runtime call.
+     */
+
+    return TCL_ERROR;
+
+  compileSelfObject:
+
+    /*
+     * This delegates the entire problem to a single opcode.
+     */
+
+    TclEmitOpcode(		INST_TCLOO_SELF,		envPtr);
+    return TCL_OK;
+
+  compileSelfNamespace:
+
+    /*
+     * This is formally only correct with TclOO methods as they are currently
+     * implemented; it assumes that the current namespace is invariably when a
+     * TclOO context is present is the object's namespace, and that's
+     * technically only something that's a matter of current policy. But it
+     * avoids creating another opcode, so that's all good!
+     */
+
+    TclEmitOpcode(		INST_TCLOO_SELF,		envPtr);
+    TclEmitOpcode(		INST_POP,			envPtr);
+    TclEmitOpcode(		INST_NS_CURRENT,		envPtr);
+    return TCL_OK;
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
diff --git a/generic/tclCompCmdsSZ.c b/generic/tclCompCmdsSZ.c
index 8ed3a95..382d2d1 100644
--- a/generic/tclCompCmdsSZ.c
+++ b/generic/tclCompCmdsSZ.c
@@ -17,6 +17,7 @@
 
 #include "tclInt.h"
 #include "tclCompile.h"
+#include "tclStringTrim.h"
 
 /*
  * Prototypes for procedures defined later in this file:
@@ -27,11 +28,9 @@ static void		FreeJumptableInfo(ClientData clientData);
 static void		PrintJumptableInfo(ClientData clientData,
 			    Tcl_Obj *appendObj, ByteCode *codePtr,
 			    unsigned int pcOffset);
-static int		PushVarName(Tcl_Interp *interp,
-			    Tcl_Token *varTokenPtr, CompileEnv *envPtr,
-			    int flags, int *localIndexPtr,
-			    int *simpleVarNamePtr, int *isScalarPtr,
-			    int line, int *clNext);
+static void		DisassembleJumptableInfo(ClientData clientData,
+			    Tcl_Obj *dictObj, ByteCode *codePtr,
+			    unsigned int pcOffset);
 static int		CompileAssociativeBinaryOpCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, const char *identity,
 			    int instruction, CompileEnv *envPtr);
@@ -45,75 +44,28 @@ static int		CompileUnaryOpCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, int instruction,
 			    CompileEnv *envPtr);
 static void		IssueSwitchChainedTests(Tcl_Interp *interp,
-			    CompileEnv *envPtr, ExtCmdLoc *mapPtr,
-			    int eclIndex, int mode, int noCase,
-			    int valueIndex, Tcl_Token *valueTokenPtr,
-			    int numWords, Tcl_Token **bodyToken,
-			    int *bodyLines, int **bodyNext);
-static void		IssueSwitchJumpTable(Tcl_Interp *interp,
-			    CompileEnv *envPtr, ExtCmdLoc *mapPtr,
-			    int eclIndex, int valueIndex,
-			    Tcl_Token *valueTokenPtr, int numWords,
+			    CompileEnv *envPtr, int mode, int noCase,
+			    int valueIndex, int numWords,
 			    Tcl_Token **bodyToken, int *bodyLines,
-			    int **bodyContLines);
-static int		IssueTryFinallyInstructions(Tcl_Interp *interp,
+			    int **bodyNext);
+static void		IssueSwitchJumpTable(Tcl_Interp *interp,
+			    CompileEnv *envPtr, int valueIndex,
+			    int numWords, Tcl_Token **bodyToken,
+			    int *bodyLines, int **bodyContLines);
+static int		IssueTryClausesInstructions(Tcl_Interp *interp,
 			    CompileEnv *envPtr, Tcl_Token *bodyToken,
 			    int numHandlers, int *matchCodes,
 			    Tcl_Obj **matchClauses, int *resultVarIndices,
-			    int *optionVarIndices, Tcl_Token **handlerTokens,
-			    Tcl_Token *finallyToken);
-static int		IssueTryInstructions(Tcl_Interp *interp,
+			    int *optionVarIndices, Tcl_Token **handlerTokens);
+static int		IssueTryClausesFinallyInstructions(Tcl_Interp *interp,
 			    CompileEnv *envPtr, Tcl_Token *bodyToken,
 			    int numHandlers, int *matchCodes,
 			    Tcl_Obj **matchClauses, int *resultVarIndices,
-			    int *optionVarIndices, Tcl_Token **handlerTokens);
-
-/*
- * Macro that encapsulates an efficiency trick that avoids a function call for
- * the simplest of compiles. The ANSI C "prototype" for this macro is:
- *
- * static void		CompileWord(CompileEnv *envPtr, Tcl_Token *tokenPtr,
- *			    Tcl_Interp *interp, int word);
- */
-
-#define CompileWord(envPtr, tokenPtr, interp, word) \
-    if ((tokenPtr)->type == TCL_TOKEN_SIMPLE_WORD) {			\
-	TclEmitPush(TclRegisterNewLiteral((envPtr), (tokenPtr)[1].start, \
-		(tokenPtr)[1].size), (envPtr));				\
-    } else {								\
-	envPtr->line = mapPtr->loc[eclIndex].line[word];		\
-	envPtr->clNext = mapPtr->loc[eclIndex].next[word];		\
-	TclCompileTokens((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
-		(envPtr));						\
-    }
-
-/*
- * TIP #280: Remember the per-word line information of the current command. An
- * index is used instead of a pointer as recursive compilation may reallocate,
- * i.e. move, the array. This is also the reason to save the nuloc now, it may
- * change during the course of the function.
- *
- * Macro to encapsulate the variable definition and setup.
- */
-
-#define DefineLineInformation \
-    ExtCmdLoc *mapPtr = envPtr->extCmdMapPtr;				\
-    int eclIndex = mapPtr->nuloc - 1
-
-#define SetLineInformation(word) \
-    envPtr->line = mapPtr->loc[eclIndex].line[(word)];			\
-    envPtr->clNext = mapPtr->loc[eclIndex].next[(word)]
-
-#define PushVarNameWord(i,v,e,f,l,s,sc,word) \
-    PushVarName(i,v,e,f,l,s,sc,						\
-	    mapPtr->loc[eclIndex].line[(word)],				\
-	    mapPtr->loc[eclIndex].next[(word)])
-
-/*
- * Flags bits used by PushVarName.
- */
-
-#define TCL_NO_LARGE_INDEX 1	/* Do not return localIndex value > 255 */
+			    int *optionVarIndices, Tcl_Token **handlerTokens,
+			    Tcl_Token *finallyToken);
+static int		IssueTryFinallyInstructions(Tcl_Interp *interp,
+			    CompileEnv *envPtr, Tcl_Token *bodyToken,
+			    Tcl_Token *finallyToken);
 
 /*
  * The structures below define the AuxData types defined in this file.
@@ -123,7 +75,8 @@ const AuxDataType tclJumptableInfoType = {
     "JumptableInfo",		/* name */
     DupJumptableInfo,		/* dupProc */
     FreeJumptableInfo,		/* freeProc */
-    PrintJumptableInfo		/* printProc */
+    PrintJumptableInfo,		/* printProc */
+    DisassembleJumptableInfo	/* disassembleProc */
 };
 
 /*
@@ -133,20 +86,79 @@ const AuxDataType tclJumptableInfoType = {
 #define OP(name)	TclEmitOpcode(INST_##name, envPtr)
 #define OP1(name,val)	TclEmitInstInt1(INST_##name,(val),envPtr)
 #define OP4(name,val)	TclEmitInstInt4(INST_##name,(val),envPtr)
+#define OP14(name,val1,val2) \
+    TclEmitInstInt1(INST_##name,(val1),envPtr);TclEmitInt4((val2),envPtr)
 #define OP44(name,val1,val2) \
     TclEmitInstInt4(INST_##name,(val1),envPtr);TclEmitInt4((val2),envPtr)
-#define BODY(token,index) \
-    SetLineInformation((index));CompileBody(envPtr,(token),interp)
 #define PUSH(str) \
-    PushLiteral(envPtr,(str),strlen(str))
-#define JUMP(var,name) \
-    (var) = CurrentOffset(envPtr);TclEmitInstInt4(INST_##name,0,envPtr)
-#define FIXJUMP(var) \
+    PushStringLiteral(envPtr, str)
+#define JUMP4(name,var) \
+    (var) = CurrentOffset(envPtr);TclEmitInstInt4(INST_##name##4,0,envPtr)
+#define FIXJUMP4(var) \
     TclStoreInt4AtPtr(CurrentOffset(envPtr)-(var),envPtr->codeStart+(var)+1)
+#define JUMP1(name,var) \
+    (var) = CurrentOffset(envPtr);TclEmitInstInt1(INST_##name##1,0,envPtr)
+#define FIXJUMP1(var) \
+    TclStoreInt1AtPtr(CurrentOffset(envPtr)-(var),envPtr->codeStart+(var)+1)
 #define LOAD(idx) \
     if ((idx)<256) {OP1(LOAD_SCALAR1,(idx));} else {OP4(LOAD_SCALAR4,(idx));}
 #define STORE(idx) \
     if ((idx)<256) {OP1(STORE_SCALAR1,(idx));} else {OP4(STORE_SCALAR4,(idx));}
+#define INVOKE(name) \
+    TclEmitInvoke(envPtr,INST_##name)
+
+#define INDEX_END	(-2)
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * GetIndexFromToken --
+ *
+ *	Parse a token and get the encoded version of the index (as understood
+ *	by TEBC), assuming it is at all knowable at compile time. Only handles
+ *	indices that are integers or 'end' or 'end-integer'.
+ *
+ * Returns:
+ *	TCL_OK if parsing succeeded, and TCL_ERROR if it failed.
+ *
+ * Side effects:
+ *	Sets *index to the index value if successful.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static inline int
+GetIndexFromToken(
+    Tcl_Token *tokenPtr,
+    int *index)
+{
+    Tcl_Obj *tmpObj = Tcl_NewObj();
+    int result, idx;
+
+    if (!TclWordKnownAtCompileTime(tokenPtr, tmpObj)) {
+	Tcl_DecrRefCount(tmpObj);
+	return TCL_ERROR;
+    }
+
+    result = TclGetIntFromObj(NULL, tmpObj, &idx);
+    if (result == TCL_OK) {
+	if (idx < 0) {
+	    result = TCL_ERROR;
+	}
+    } else {
+	result = TclGetIntForIndexM(NULL, tmpObj, INDEX_END, &idx);
+	if (result == TCL_OK && idx > INDEX_END) {
+	    result = TCL_ERROR;
+	}
+    }
+    Tcl_DecrRefCount(tmpObj);
+
+    if (result == TCL_OK) {
+	*index = idx;
+    }
+
+    return result;
+}
 
 /*
  *----------------------------------------------------------------------
@@ -176,7 +188,7 @@ TclCompileSetCmd(
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
     Tcl_Token *varTokenPtr, *valueTokenPtr;
-    int isAssignment, isScalar, simpleVarName, localIndex, numWords;
+    int isAssignment, isScalar, localIndex, numWords;
     DefineLineInformation;	/* TIP #280 */
 
     numWords = parsePtr->numWords;
@@ -195,7 +207,7 @@ TclCompileSetCmd(
 
     varTokenPtr = TokenAfter(parsePtr->tokenPtr);
     PushVarNameWord(interp, varTokenPtr, envPtr, 0,
-	    &localIndex, &simpleVarName, &isScalar, 1);
+	    &localIndex, &isScalar, 1);
 
     /*
      * If we are doing an assignment, push the new value.
@@ -210,12 +222,10 @@ TclCompileSetCmd(
      * Emit instructions to set/get the variable.
      */
 
-    if (simpleVarName) {
 	if (isScalar) {
 	    if (localIndex < 0) {
 		TclEmitOpcode((isAssignment?
-			INST_STORE_SCALAR_STK : INST_LOAD_SCALAR_STK),
-			envPtr);
+			INST_STORE_STK : INST_LOAD_STK), envPtr);
 	    } else if (localIndex <= 255) {
 		TclEmitInstInt1((isAssignment?
 			INST_STORE_SCALAR1 : INST_LOAD_SCALAR1),
@@ -239,9 +249,6 @@ TclCompileSetCmd(
 			localIndex, envPtr);
 	    }
 	}
-    } else {
-	TclEmitOpcode((isAssignment? INST_STORE_STK : INST_LOAD_STK), envPtr);
-    }
 
     return TCL_OK;
 }
@@ -249,23 +256,95 @@ TclCompileSetCmd(
 /*
  *----------------------------------------------------------------------
  *
- * TclCompileStringCmpCmd --
+ * TclCompileString*Cmd --
  *
- *	Procedure called to compile the simplest and most common form of the
- *	"string compare" command.
+ *	Procedures called to compile various subcommands of the "string"
+ *	command.
  *
  * Results:
  *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
  *	evaluation to runtime.
  *
  * Side effects:
- *	Instructions are added to envPtr to execute the "string compare"
- *	command at runtime.
+ *	Instructions are added to envPtr to execute the "string" command at
+ *	runtime.
  *
  *----------------------------------------------------------------------
  */
 
 int
+TclCompileStringCatCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    int i, numWords = parsePtr->numWords, numArgs;
+    Tcl_Token *wordTokenPtr;
+    Tcl_Obj *obj, *folded;
+    DefineLineInformation;	/* TIP #280 */
+
+    /* Trivial case, no arg */
+
+    if (numWords<2) {
+	PushStringLiteral(envPtr, "");
+	return TCL_OK;
+    }
+	
+    /* General case: issue CONCAT1's (by chunks of 254 if needed), folding
+       contiguous constants along the way */
+
+    numArgs = 0;
+    folded = NULL;
+    wordTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    for (i = 1; i < numWords; i++) {
+	obj = Tcl_NewObj();
+	if (TclWordKnownAtCompileTime(wordTokenPtr, obj)) {
+	    if (folded) {
+		Tcl_AppendObjToObj(folded, obj);
+		Tcl_DecrRefCount(obj);
+	    } else {
+		folded = obj;
+	    }
+	} else {
+	    Tcl_DecrRefCount(obj);
+	    if (folded) {
+		int len;
+		const char *bytes = Tcl_GetStringFromObj(folded, &len);
+		
+		PushLiteral(envPtr, bytes, len);
+		Tcl_DecrRefCount(folded);
+		folded = NULL;
+		numArgs ++;
+	    }
+	    CompileWord(envPtr, wordTokenPtr, interp, i);
+	    numArgs ++;
+	    if (numArgs >= 254) { /* 254 to take care of the possible +1 of "folded" above */
+		TclEmitInstInt1(INST_STR_CONCAT1, numArgs, envPtr);
+		numArgs = 1;	/* concat pushes 1 obj, the result */
+	    }
+	}
+	wordTokenPtr = TokenAfter(wordTokenPtr);
+    }
+    if (folded) {
+	int len;
+	const char *bytes = Tcl_GetStringFromObj(folded, &len);
+	
+	PushLiteral(envPtr, bytes, len);
+	Tcl_DecrRefCount(folded);
+	folded = NULL;
+	numArgs ++;
+    }
+    if (numArgs > 1) {
+	TclEmitInstInt1(INST_STR_CONCAT1, numArgs, envPtr);
+    }
+
+    return TCL_OK;
+}
+
+int
 TclCompileStringCmpCmd(
     Tcl_Interp *interp,		/* Used for error reporting. */
     Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
@@ -296,25 +375,6 @@ TclCompileStringCmpCmd(
     TclEmitOpcode(INST_STR_CMP, envPtr);
     return TCL_OK;
 }
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileStringEqualCmd --
- *
- *	Procedure called to compile the simplest and most common form of the
- *	"string equal" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "string equal" command
- *	at runtime.
- *
- *----------------------------------------------------------------------
- */
 
 int
 TclCompileStringEqualCmd(
@@ -347,25 +407,70 @@ TclCompileStringEqualCmd(
     TclEmitOpcode(INST_STR_EQ, envPtr);
     return TCL_OK;
 }
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileStringIndexCmd --
- *
- *	Procedure called to compile the simplest and most common form of the
- *	"string index" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "string index" command
- *	at runtime.
- *
- *----------------------------------------------------------------------
- */
+
+int
+TclCompileStringFirstCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+
+    /*
+     * We don't support any flags; the bytecode isn't that sophisticated.
+     */
+
+    if (parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Push the two operands onto the stack and then the test.
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr, interp, 1);
+    tokenPtr = TokenAfter(tokenPtr);
+    CompileWord(envPtr, tokenPtr, interp, 2);
+    OP(STR_FIND);
+    return TCL_OK;
+}
+
+int
+TclCompileStringLastCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+
+    /*
+     * We don't support any flags; the bytecode isn't that sophisticated.
+     */
+
+    if (parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Push the two operands onto the stack and then the test.
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr, interp, 1);
+    tokenPtr = TokenAfter(tokenPtr);
+    CompileWord(envPtr, tokenPtr, interp, 2);
+    OP(STR_FIND_LAST);
+    return TCL_OK;
+}
 
 int
 TclCompileStringIndexCmd(
@@ -394,25 +499,284 @@ TclCompileStringIndexCmd(
     TclEmitOpcode(INST_STR_INDEX, envPtr);
     return TCL_OK;
 }
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileStringMatchCmd --
- *
- *	Procedure called to compile the simplest and most common form of the
- *	"string match" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "string match" command
- *	at runtime.
- *
- *----------------------------------------------------------------------
- */
+
+int
+TclCompileStringIsCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    static const char *const isClasses[] = {
+	"alnum",	"alpha",	"ascii",	"control",
+	"boolean",	"digit",	"double",	"entier",
+	"false",	"graph",	"integer",	"list",
+	"lower",	"print",	"punct",	"space",
+	"true",		"upper",	"wideinteger",	"wordchar",
+	"xdigit",	NULL
+    };
+    enum isClasses {
+	STR_IS_ALNUM,	STR_IS_ALPHA,	STR_IS_ASCII,	STR_IS_CONTROL,
+	STR_IS_BOOL,	STR_IS_DIGIT,	STR_IS_DOUBLE,	STR_IS_ENTIER,
+	STR_IS_FALSE,	STR_IS_GRAPH,	STR_IS_INT,	STR_IS_LIST,
+	STR_IS_LOWER,	STR_IS_PRINT,	STR_IS_PUNCT,	STR_IS_SPACE,
+	STR_IS_TRUE,	STR_IS_UPPER,	STR_IS_WIDE,	STR_IS_WORD,
+	STR_IS_XDIGIT
+    };
+    int t, range, allowEmpty = 0, end;
+    InstStringClassType strClassType;
+    Tcl_Obj *isClass;
+
+    if (parsePtr->numWords < 3 || parsePtr->numWords > 6) {
+	return TCL_ERROR;
+    }
+    isClass = Tcl_NewObj();
+    if (!TclWordKnownAtCompileTime(tokenPtr, isClass)) {
+	Tcl_DecrRefCount(isClass);
+	return TCL_ERROR;
+    } else if (Tcl_GetIndexFromObj(interp, isClass, isClasses, "class", 0,
+	    &t) != TCL_OK) {
+	Tcl_DecrRefCount(isClass);
+	TclCompileSyntaxError(interp, envPtr);
+	return TCL_OK;
+    }
+    Tcl_DecrRefCount(isClass);
+
+#define GotLiteral(tokenPtr, word) \
+    ((tokenPtr)->type == TCL_TOKEN_SIMPLE_WORD &&			\
+     (tokenPtr)[1].size > 1 &&						\
+     (tokenPtr)[1].start[0] == word[0] &&				\
+     strncmp((tokenPtr)[1].start, (word), (tokenPtr)[1].size) == 0)
+
+    /*
+     * Cannot handle the -failindex option at all, and that's the only legal
+     * way to have more than 4 arguments.
+     */
+
+    if (parsePtr->numWords != 3 && parsePtr->numWords != 4) {
+	return TCL_ERROR;
+    }
+
+    tokenPtr = TokenAfter(tokenPtr);
+    if (parsePtr->numWords == 3) {
+	allowEmpty = 1;
+    } else {
+	if (!GotLiteral(tokenPtr, "-strict")) {
+	    return TCL_ERROR;
+	}
+	tokenPtr = TokenAfter(tokenPtr);
+    }
+#undef GotLiteral
+
+    /*
+     * Compile the code. There are several main classes of check here.
+     *	1. Character classes
+     *	2. Booleans
+     *	3. Integers
+     *	4. Floats
+     *	5. Lists
+     */
+
+    CompileWord(envPtr, tokenPtr, interp, parsePtr->numWords-1);
+
+    switch ((enum isClasses) t) {
+    case STR_IS_ALNUM:
+	strClassType = STR_CLASS_ALNUM;
+	goto compileStrClass;
+    case STR_IS_ALPHA:
+	strClassType = STR_CLASS_ALPHA;
+	goto compileStrClass;
+    case STR_IS_ASCII:
+	strClassType = STR_CLASS_ASCII;
+	goto compileStrClass;
+    case STR_IS_CONTROL:
+	strClassType = STR_CLASS_CONTROL;
+	goto compileStrClass;
+    case STR_IS_DIGIT:
+	strClassType = STR_CLASS_DIGIT;
+	goto compileStrClass;
+    case STR_IS_GRAPH:
+	strClassType = STR_CLASS_GRAPH;
+	goto compileStrClass;
+    case STR_IS_LOWER:
+	strClassType = STR_CLASS_LOWER;
+	goto compileStrClass;
+    case STR_IS_PRINT:
+	strClassType = STR_CLASS_PRINT;
+	goto compileStrClass;
+    case STR_IS_PUNCT:
+	strClassType = STR_CLASS_PUNCT;
+	goto compileStrClass;
+    case STR_IS_SPACE:
+	strClassType = STR_CLASS_SPACE;
+	goto compileStrClass;
+    case STR_IS_UPPER:
+	strClassType = STR_CLASS_UPPER;
+	goto compileStrClass;
+    case STR_IS_WORD:
+	strClassType = STR_CLASS_WORD;
+	goto compileStrClass;
+    case STR_IS_XDIGIT:
+	strClassType = STR_CLASS_XDIGIT;
+    compileStrClass:
+	if (allowEmpty) {
+	    OP1(	STR_CLASS, strClassType);
+	} else {
+	    int over, over2;
+
+	    OP(		DUP);
+	    OP1(	STR_CLASS, strClassType);
+	    JUMP1(	JUMP_TRUE, over);
+	    OP(		POP);
+	    PUSH(	"0");
+	    JUMP1(	JUMP, over2);
+	    FIXJUMP1(over);
+	    PUSH(	"");
+	    OP(		STR_NEQ);
+	    FIXJUMP1(over2);
+	}
+	return TCL_OK;
+
+    case STR_IS_BOOL:
+    case STR_IS_FALSE:
+    case STR_IS_TRUE:
+	OP(		TRY_CVT_TO_BOOLEAN);
+	switch (t) {
+	    int over, over2;
+
+	case STR_IS_BOOL:
+	    if (allowEmpty) {
+		JUMP1(	JUMP_TRUE, over);
+		PUSH(	"");
+		OP(	STR_EQ);
+		JUMP1(	JUMP, over2);
+		FIXJUMP1(over);
+		OP(	POP);
+		PUSH(	"1");
+		FIXJUMP1(over2);
+	    } else {
+		OP4(	REVERSE, 2);
+		OP(	POP);
+	    }
+	    return TCL_OK;
+	case STR_IS_TRUE:
+	    JUMP1(	JUMP_TRUE, over);
+	    if (allowEmpty) {
+		PUSH(	"");
+		OP(	STR_EQ);
+	    } else {
+		OP(	POP);
+		PUSH(	"0");
+	    }
+	    FIXJUMP1(	over);
+	    OP(		LNOT);
+	    OP(		LNOT);
+	    return TCL_OK;
+	case STR_IS_FALSE:
+	    JUMP1(	JUMP_TRUE, over);
+	    if (allowEmpty) {
+		PUSH(	"");
+		OP(	STR_NEQ);
+	    } else {
+		OP(	POP);
+		PUSH(	"1");
+	    }
+	    FIXJUMP1(	over);
+	    OP(		LNOT);
+	    return TCL_OK;
+	}
+
+    case STR_IS_DOUBLE: {
+	int satisfied, isEmpty;
+
+	if (allowEmpty) {
+	    OP(		DUP);
+	    PUSH(	"");
+	    OP(		STR_EQ);
+	    JUMP1(	JUMP_TRUE, isEmpty);
+	    OP(		NUM_TYPE);
+	    JUMP1(	JUMP_TRUE, satisfied);
+	    PUSH(	"0");
+	    JUMP1(	JUMP, end);
+	    FIXJUMP1(	isEmpty);
+	    OP(		POP);
+	    FIXJUMP1(	satisfied);
+	} else {
+	    OP(		NUM_TYPE);
+	    JUMP1(	JUMP_TRUE, satisfied);
+	    PUSH(	"0");
+	    JUMP1(	JUMP, end);
+	    TclAdjustStackDepth(-1, envPtr);
+	    FIXJUMP1(	satisfied);
+	}
+	PUSH(		"1");
+	FIXJUMP1(	end);
+	return TCL_OK;
+    }
+
+    case STR_IS_INT:
+    case STR_IS_WIDE:
+    case STR_IS_ENTIER:
+	if (allowEmpty) {
+	    int testNumType;
+
+	    OP(		DUP);
+	    OP(		NUM_TYPE);
+	    OP(		DUP);
+	    JUMP1(	JUMP_TRUE, testNumType);
+	    OP(		POP);
+	    PUSH(	"");
+	    OP(		STR_EQ);
+	    JUMP1(	JUMP, end);
+	    TclAdjustStackDepth(1, envPtr);
+	    FIXJUMP1(	testNumType);
+	    OP4(	REVERSE, 2);
+	    OP(		POP);
+	} else {
+	    OP(		NUM_TYPE);
+	    OP(		DUP);
+	    JUMP1(	JUMP_FALSE, end);
+	}
+
+	switch (t) {
+	case STR_IS_INT:
+	    PUSH(	"1");
+	    OP(		EQ);
+	    break;
+	case STR_IS_WIDE:
+	    PUSH(	"2");
+	    OP(		LE);
+	    break;
+	case STR_IS_ENTIER:
+	    PUSH(	"3");
+	    OP(		LE);
+	    break;
+	}
+	FIXJUMP1(	end);
+	return TCL_OK;
+
+    case STR_IS_LIST:
+	range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
+	OP4(		BEGIN_CATCH4, range);
+	ExceptionRangeStarts(envPtr, range);
+	OP(		DUP);
+	OP(		LIST_LENGTH);
+	OP(		POP);
+	ExceptionRangeEnds(envPtr, range);
+	ExceptionRangeTarget(envPtr, range, catchOffset);
+	OP(		POP);
+	OP(		PUSH_RETURN_CODE);
+	OP(		END_CATCH);
+	OP(		LNOT);
+	return TCL_OK;
+    }
+
+    return TclCompileBasicMin0ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+}
 
 int
 TclCompileStringMatchCmd(
@@ -439,7 +803,7 @@ TclCompileStringMatchCmd(
 
     if (parsePtr->numWords == 4) {
 	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	    return TCL_ERROR;
+	    return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
 	}
 	str = tokenPtr[1].start;
 	length = tokenPtr[1].size;
@@ -448,7 +812,7 @@ TclCompileStringMatchCmd(
 	     * Fail at run time, not in compilation.
 	     */
 
-	    return TCL_ERROR;
+	    return TclCompileBasic3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
 	}
 	nocase = 1;
 	tokenPtr = TokenAfter(tokenPtr);
@@ -494,25 +858,6 @@ TclCompileStringMatchCmd(
     }
     return TCL_OK;
 }
-
-/*
- *----------------------------------------------------------------------
- *
- * TclCompileStringLenCmd --
- *
- *	Procedure called to compile the simplest and most common form of the
- *	"string length" command.
- *
- * Results:
- *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- *	evaluation to runtime.
- *
- * Side effects:
- *	Instructions are added to envPtr to execute the "string length"
- *	command at runtime.
- *
- *----------------------------------------------------------------------
- */
 
 int
 TclCompileStringLenCmd(
@@ -553,6 +898,434 @@ TclCompileStringLenCmd(
     TclDecrRefCount(objPtr);
     return TCL_OK;
 }
+
+int
+TclCompileStringMapCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *mapTokenPtr, *stringTokenPtr;
+    Tcl_Obj *mapObj, **objv;
+    char *bytes;
+    int len;
+
+    /*
+     * We only handle the case:
+     *
+     *    string map {foo bar} $thing
+     *
+     * That is, a literal two-element list (doesn't need to be brace-quoted,
+     * but does need to be compile-time knowable) and any old argument (the
+     * thing to map).
+     */
+
+    if (parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+    mapTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    stringTokenPtr = TokenAfter(mapTokenPtr);
+    mapObj = Tcl_NewObj();
+    Tcl_IncrRefCount(mapObj);
+    if (!TclWordKnownAtCompileTime(mapTokenPtr, mapObj)) {
+	Tcl_DecrRefCount(mapObj);
+	return TclCompileBasic2ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    } else if (Tcl_ListObjGetElements(NULL, mapObj, &len, &objv) != TCL_OK) {
+	Tcl_DecrRefCount(mapObj);
+	return TclCompileBasic2ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    } else if (len != 2) {
+	Tcl_DecrRefCount(mapObj);
+	return TclCompileBasic2ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    }
+
+    /*
+     * Now issue the opcodes. Note that in the case that we know that the
+     * first word is an empty word, we don't issue the map at all. That is the
+     * correct semantics for mapping.
+     */
+
+    bytes = Tcl_GetStringFromObj(objv[0], &len);
+    if (len == 0) {
+	CompileWord(envPtr, stringTokenPtr, interp, 2);
+    } else {
+	PushLiteral(envPtr, bytes, len);
+	bytes = Tcl_GetStringFromObj(objv[1], &len);
+	PushLiteral(envPtr, bytes, len);
+	CompileWord(envPtr, stringTokenPtr, interp, 2);
+	OP(STR_MAP);
+    }
+    Tcl_DecrRefCount(mapObj);
+    return TCL_OK;
+}
+
+int
+TclCompileStringRangeCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *stringTokenPtr, *fromTokenPtr, *toTokenPtr;
+    int idx1, idx2;
+
+    if (parsePtr->numWords != 4) {
+	return TCL_ERROR;
+    }
+    stringTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    fromTokenPtr = TokenAfter(stringTokenPtr);
+    toTokenPtr = TokenAfter(fromTokenPtr);
+
+    /*
+     * Parse the two indices.
+     */
+
+    if (GetIndexFromToken(fromTokenPtr, &idx1) != TCL_OK) {
+	goto nonConstantIndices;
+    }
+    if (GetIndexFromToken(toTokenPtr, &idx2) != TCL_OK) {
+	goto nonConstantIndices;
+    }
+
+    /*
+     * Push the operand onto the stack and then the substring operation.
+     */
+
+    CompileWord(envPtr, stringTokenPtr,			interp, 1);
+    OP44(		STR_RANGE_IMM, idx1, idx2);
+    return TCL_OK;
+
+    /*
+     * Push the operands onto the stack and then the substring operation.
+     */    
+
+  nonConstantIndices:
+    CompileWord(envPtr, stringTokenPtr,			interp, 1);
+    CompileWord(envPtr, fromTokenPtr,			interp, 2);
+    CompileWord(envPtr, toTokenPtr,			interp, 3);
+    OP(			STR_RANGE);
+    return TCL_OK;
+}
+
+int
+TclCompileStringReplaceCmd(
+    Tcl_Interp *interp,		/* Tcl interpreter for context. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the
+				 * command. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds the resulting instructions. */
+{
+    Tcl_Token *tokenPtr, *valueTokenPtr, *replacementTokenPtr = NULL;
+    DefineLineInformation;	/* TIP #280 */
+    int idx1, idx2;
+
+    if (parsePtr->numWords < 4 || parsePtr->numWords > 5) {
+	return TCL_ERROR;
+    }
+    valueTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    if (parsePtr->numWords == 5) {
+	tokenPtr = TokenAfter(valueTokenPtr);
+	tokenPtr = TokenAfter(tokenPtr);
+	replacementTokenPtr = TokenAfter(tokenPtr);
+    }
+
+    /*
+     * Parse the indices. Will only compile special cases if both are
+     * constants and not an _integer_ less than zero (since we reserve
+     * negative indices here for end-relative indexing) or an end-based index
+     * greater than 'end' itself.
+     */
+
+    tokenPtr = TokenAfter(valueTokenPtr);
+    if (GetIndexFromToken(tokenPtr, &idx1) != TCL_OK) {
+	goto genericReplace;
+    }
+
+    tokenPtr = TokenAfter(tokenPtr);
+    if (GetIndexFromToken(tokenPtr, &idx2) != TCL_OK) {
+	goto genericReplace;
+    }
+
+    /*
+     * We handle these replacements specially: first character (where
+     * idx1=idx2=0) and last character (where idx1=idx2=INDEX_END). Anything
+     * else and the semantics get rather screwy.
+     */
+
+    if (idx1 == 0 && idx2 == 0) {
+	int notEq, end;
+
+	/*
+	 * Just working with the first character.
+	 */
+
+	CompileWord(envPtr, valueTokenPtr, interp, 1);
+	if (replacementTokenPtr == NULL) {
+	    /* Drop first */
+	    OP44(	STR_RANGE_IMM, 1, INDEX_END);
+	    return TCL_OK;
+	}
+	/* Replace first */
+	CompileWord(envPtr, replacementTokenPtr, interp, 4);
+	OP4(		OVER, 1);
+	PUSH(		"");
+	OP(		STR_EQ);
+	JUMP1(		JUMP_FALSE, notEq);
+	OP(		POP);
+	JUMP1(		JUMP, end);
+	FIXJUMP1(notEq);
+	TclAdjustStackDepth(1, envPtr);
+	OP4(		REVERSE, 2);
+	OP44(		STR_RANGE_IMM, 1, INDEX_END);
+	OP1(		STR_CONCAT1, 2);
+	FIXJUMP1(end);
+	return TCL_OK;
+
+    } else if (idx1 == INDEX_END && idx2 == INDEX_END) {
+	int notEq, end;
+
+	/*
+	 * Just working with the last character.
+	 */
+
+	CompileWord(envPtr, valueTokenPtr, interp, 1);
+	if (replacementTokenPtr == NULL) {
+	    /* Drop last */
+	    OP44(	STR_RANGE_IMM, 0, INDEX_END-1);
+	    return TCL_OK;
+	}
+	/* Replace last */
+	CompileWord(envPtr, replacementTokenPtr, interp, 4);
+	OP4(		OVER, 1);
+	PUSH(		"");
+	OP(		STR_EQ);
+	JUMP1(		JUMP_FALSE, notEq);
+	OP(		POP);
+	JUMP1(		JUMP, end);
+	FIXJUMP1(notEq);
+	TclAdjustStackDepth(1, envPtr);
+	OP4(		REVERSE, 2);
+	OP44(		STR_RANGE_IMM, 0, INDEX_END-1);
+	OP4(		REVERSE, 2);
+	OP1(		STR_CONCAT1, 2);
+	FIXJUMP1(end);
+	return TCL_OK;
+
+    } else {
+	/*
+	 * Need to process indices at runtime. This could be because the
+	 * indices are not constants, or because we need to resolve them to
+	 * absolute indices to work out if a replacement is going to happen.
+	 * In any case, to runtime it is.
+	 */
+
+    genericReplace:
+	CompileWord(envPtr, valueTokenPtr, interp, 1);
+	tokenPtr = TokenAfter(valueTokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, 2);
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, 3);
+	if (replacementTokenPtr != NULL) {
+	    CompileWord(envPtr, replacementTokenPtr, interp, 4);
+	} else {
+	    PUSH(	"");
+	}
+	OP(		STR_REPLACE);
+	return TCL_OK;
+    }
+}
+
+int
+TclCompileStringTrimLCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+
+    if (parsePtr->numWords != 2 && parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr,			interp, 1);
+    if (parsePtr->numWords == 3) {
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr,			interp, 2);
+    } else {
+	PushLiteral(envPtr, tclDefaultTrimSet, strlen(tclDefaultTrimSet));
+    }
+    OP(			STR_TRIM_LEFT);
+    return TCL_OK;
+}
+
+int
+TclCompileStringTrimRCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+
+    if (parsePtr->numWords != 2 && parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr,			interp, 1);
+    if (parsePtr->numWords == 3) {
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr,			interp, 2);
+    } else {
+	PushLiteral(envPtr, tclDefaultTrimSet, strlen(tclDefaultTrimSet));
+    }
+    OP(			STR_TRIM_RIGHT);
+    return TCL_OK;
+}
+
+int
+TclCompileStringTrimCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+
+    if (parsePtr->numWords != 2 && parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr,			interp, 1);
+    if (parsePtr->numWords == 3) {
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr,			interp, 2);
+    } else {
+	PushLiteral(envPtr, tclDefaultTrimSet, strlen(tclDefaultTrimSet));
+    }
+    OP(			STR_TRIM);
+    return TCL_OK;
+}
+
+int
+TclCompileStringToUpperCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+
+    if (parsePtr->numWords != 2) {
+	return TclCompileBasic1To3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    }
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr,			interp, 1);
+    OP(			STR_UPPER);
+    return TCL_OK;
+}
+
+int
+TclCompileStringToLowerCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+
+    if (parsePtr->numWords != 2) {
+	return TclCompileBasic1To3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    }
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr,			interp, 1);
+    OP(			STR_LOWER);
+    return TCL_OK;
+}
+
+int
+TclCompileStringToTitleCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr;
+
+    if (parsePtr->numWords != 2) {
+	return TclCompileBasic1To3ArgCmd(interp, parsePtr, cmdPtr, envPtr);
+    }
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr,			interp, 1);
+    OP(			STR_TITLE);
+    return TCL_OK;
+}
+
+/*
+ * Support definitions for the [string is] compilation.
+ */
+
+static int
+UniCharIsAscii(
+    int character)
+{
+    return (character >= 0) && (character < 0x80);
+}
+
+static int
+UniCharIsHexDigit(
+    int character)
+{
+    return (character >= 0) && (character < 0x80) && isxdigit(character);
+}
+
+StringClassDesc const tclStringClassTable[] = {
+    {"alnum",	Tcl_UniCharIsAlnum},
+    {"alpha",	Tcl_UniCharIsAlpha},
+    {"ascii",	UniCharIsAscii},
+    {"control", Tcl_UniCharIsControl},
+    {"digit",	Tcl_UniCharIsDigit},
+    {"graph",	Tcl_UniCharIsGraph},
+    {"lower",	Tcl_UniCharIsLower},
+    {"print",	Tcl_UniCharIsPrint},
+    {"punct",	Tcl_UniCharIsPunct},
+    {"space",	Tcl_UniCharIsSpace},
+    {"upper",	Tcl_UniCharIsUpper},
+    {"word",	Tcl_UniCharIsWordChar},
+    {"xdigit",	UniCharIsHexDigit},
+    {NULL,	NULL}
+};
 
 /*
  *----------------------------------------------------------------------
@@ -656,18 +1429,21 @@ TclSubstCompile(
     Tcl_InterpState state = NULL;
 
     TclSubstParse(interp, bytes, numBytes, flags, &parse, &state);
+    if (state != NULL) {
+	Tcl_ResetResult(interp);
+    }
 
     /*
      * Tricky point! If the first token does not result in a *guaranteed* push
      * of a Tcl_Obj on the stack, we must push an empty object. Otherwise it
-     * is possible to get to an INST_CONCAT1 or INST_DONE without enough
+     * is possible to get to an INST_STR_CONCAT1 or INST_DONE without enough
      * values on the stack, resulting in a crash. Thanks to Joe Mistachkin for
      * identifying a script that could trigger this case.
      */
 
     tokenPtr = parse.tokenPtr;
     if (tokenPtr->type != TCL_TOKEN_TEXT && tokenPtr->type != TCL_TOKEN_BS) {
-	PushLiteral(envPtr, "", 0);
+	PUSH("");
 	count++;
     }
 
@@ -694,14 +1470,42 @@ TclSubstCompile(
 	    TclEmitPush(literal, envPtr);
 	    count++;
 	    continue;
+	case TCL_TOKEN_VARIABLE:
+	    /*
+	     * Check for simple variable access; see if we can only generate
+	     * TCL_OK or TCL_ERROR from the substituted variable read; if so,
+	     * there is no need to generate elaborate exception-management
+	     * code. Note that the first component of TCL_TOKEN_VARIABLE is
+	     * always TCL_TOKEN_TEXT...
+	     */
+
+	    if (tokenPtr->numComponents > 1) {
+		int i, foundCommand = 0;
+
+		for (i=2 ; i<=tokenPtr->numComponents ; i++) {
+		    if (tokenPtr[i].type == TCL_TOKEN_COMMAND) {
+			foundCommand = 1;
+			break;
+		    }
+		}
+		if (foundCommand) {
+		    break;
+		}
+	    }
+
+	    envPtr->line = bline;
+	    TclCompileVarSubst(interp, tokenPtr, envPtr);
+	    bline = envPtr->line;
+	    count++;
+	    continue;
 	}
 
 	while (count > 255) {
-	    TclEmitInstInt1(INST_CONCAT1, 255, envPtr);
+	    OP1(		STR_CONCAT1, 255);
 	    count -= 254;
 	}
 	if (count > 1) {
-	    TclEmitInstInt1(INST_CONCAT1, count, envPtr);
+	    OP1(		STR_CONCAT1, count);
 	    count = 1;
 	}
 
@@ -721,8 +1525,8 @@ TclSubstCompile(
 	}
 
 	envPtr->line = bline;
-	catchRange = DeclareExceptionRange(envPtr, CATCH_EXCEPTION_RANGE);
-	TclEmitInstInt4(INST_BEGIN_CATCH4, catchRange, envPtr);
+	catchRange = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
+	OP4(	BEGIN_CATCH4, catchRange);
 	ExceptionRangeStarts(envPtr, catchRange);
 
 	switch (tokenPtr->type) {
@@ -743,20 +1547,21 @@ TclSubstCompile(
 	ExceptionRangeEnds(envPtr, catchRange);
 
 	/* Substitution produced TCL_OK */
-	TclEmitOpcode(INST_END_CATCH, envPtr);
+	OP(	END_CATCH);
 	TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &okFixup);
+	TclAdjustStackDepth(-1, envPtr);
 
 	/* Exceptional return codes processed here */
 	ExceptionRangeTarget(envPtr, catchRange, catchOffset);
-	TclEmitOpcode(INST_PUSH_RETURN_OPTIONS, envPtr);
-	TclEmitOpcode(INST_PUSH_RESULT, envPtr);
-	TclEmitOpcode(INST_PUSH_RETURN_CODE, envPtr);
-	TclEmitOpcode(INST_END_CATCH, envPtr);
-	TclEmitOpcode(INST_RETURN_CODE_BRANCH, envPtr);
+	OP(	PUSH_RETURN_OPTIONS);
+	OP(	PUSH_RESULT);
+	OP(	PUSH_RETURN_CODE);
+	OP(	END_CATCH);
+	OP(	RETURN_CODE_BRANCH);
 
-	/* ERROR -> reraise it */
-	TclEmitOpcode(INST_RETURN_STK, envPtr);
-	TclEmitOpcode(INST_NOP, envPtr);
+	/* ERROR -> reraise it; NB: can't require BREAK/CONTINUE handling */
+	OP(	RETURN_STK);
+	OP(	NOP);
 
 	/* RETURN */
 	TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &returnFixup);
@@ -770,30 +1575,33 @@ TclSubstCompile(
 	/* OTHER */
 	TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &otherFixup);
 
+	TclAdjustStackDepth(1, envPtr);
 	/* BREAK destination */
 	if (TclFixupForwardJumpToHere(envPtr, &breakFixup, 127)) {
 	    Tcl_Panic("TclCompileSubstCmd: bad break jump distance %d",
 		    (int) (CurrentOffset(envPtr) - breakFixup.codeOffset));
 	}
-	TclEmitOpcode(INST_POP, envPtr);
-	TclEmitOpcode(INST_POP, envPtr);
+	OP(	POP);
+	OP(	POP);
 
 	breakJump = CurrentOffset(envPtr) - breakOffset;
 	if (breakJump > 127) {
-	    TclEmitInstInt4(INST_JUMP4, -breakJump, envPtr);
+	    OP4(JUMP4, -breakJump);
 	} else {
-	    TclEmitInstInt1(INST_JUMP1, -breakJump, envPtr);
+	    OP1(JUMP1, -breakJump);
 	}
 
+	TclAdjustStackDepth(2, envPtr);
 	/* CONTINUE destination */
 	if (TclFixupForwardJumpToHere(envPtr, &continueFixup, 127)) {
 	    Tcl_Panic("TclCompileSubstCmd: bad continue jump distance %d",
 		    (int) (CurrentOffset(envPtr) - continueFixup.codeOffset));
 	}
-	TclEmitOpcode(INST_POP, envPtr);
-	TclEmitOpcode(INST_POP, envPtr);
+	OP(	POP);
+	OP(	POP);
 	TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &endFixup);
 
+	TclAdjustStackDepth(2, envPtr);
 	/* RETURN + other destination */
 	if (TclFixupForwardJumpToHere(envPtr, &returnFixup, 127)) {
 	    Tcl_Panic("TclCompileSubstCmd: bad return jump distance %d",
@@ -808,19 +1616,8 @@ TclSubstCompile(
 	 * Pull the result to top of stack, discard options dict.
 	 */
 
-	TclEmitInstInt4(INST_REVERSE, 2, envPtr);
-	TclEmitOpcode(INST_POP, envPtr);
-
-	/*
-	 * We've emitted several POP instructions, and the automatic
-	 * computations for stack depth requirements have been decrementing
-	 * for every one.  However, we know that every branch actually taken
-	 * only encounters some of those instructions.  No branch passes
-	 * through them all.  So, we now have a stack requirements estimate
-	 * that is too low.  Here we manually fix that up.
-	 */
-
-	TclAdjustStackDepth(5, envPtr);
+	OP4(	REVERSE, 2);
+	OP(	POP);
 
 	/* OK destination */
 	if (TclFixupForwardJumpToHere(envPtr, &okFixup, 127)) {
@@ -828,7 +1625,7 @@ TclSubstCompile(
 		    (int) (CurrentOffset(envPtr) - okFixup.codeOffset));
 	}
 	if (count > 1) {
-	    TclEmitInstInt1(INST_CONCAT1, count, envPtr);
+	    OP1(STR_CONCAT1, count);
 	    count = 1;
 	}
 
@@ -840,13 +1637,12 @@ TclSubstCompile(
 	bline = envPtr->line;
     }
 
-
     while (count > 255) {
-	TclEmitInstInt1(INST_CONCAT1, 255, envPtr);
+	OP1(	STR_CONCAT1, 255);
 	count -= 254;
     }
     if (count > 1) {
-	TclEmitInstInt1(INST_CONCAT1, count, envPtr);
+	OP1(	STR_CONCAT1, count);
     }
 
     Tcl_FreeParse(&parse);
@@ -854,6 +1650,7 @@ TclSubstCompile(
     if (state != NULL) {
 	Tcl_RestoreInterpState(interp, state);
 	TclCompileSyntaxError(interp, envPtr);
+	TclAdjustStackDepth(-1, envPtr);
     }
 
     /* Final target of the multi-jump from all BREAKs */
@@ -880,9 +1677,6 @@ TclSubstCompile(
  *	Instructions are added to envPtr to execute the "switch" command at
  *	runtime.
  *
- * FIXME:
- *	Stack depths are probably not calculated correctly.
- *
  *----------------------------------------------------------------------
  */
 
@@ -1082,12 +1876,7 @@ TclCompileSwitchCmd(
 	    if (TCL_OK != TclFindElement(NULL, bytes, numBytes,
 		    &(bodyTokenArray[numWords].start), &bytes,
 		    &(bodyTokenArray[numWords].size), &literal) || !literal) {
-	    abort:
-		ckfree((char *) bodyToken);
-		ckfree((char *) bodyTokenArray);
-		ckfree((char *) bodyLines);
-		ckfree((char *) bodyContLines);
-		return TCL_ERROR;
+		goto abort;
 	    }
 
 	    bodyTokenArray[numWords].type = TCL_TOKEN_TEXT;
@@ -1112,7 +1901,12 @@ TclCompileSwitchCmd(
 	    numWords++;
 	}
 	if (numWords % 2) {
-	    goto abort;
+	abort:
+	    ckfree((char *) bodyToken);
+	    ckfree((char *) bodyTokenArray);
+	    ckfree((char *) bodyLines);
+	    ckfree((char *) bodyContLines);
+	    return TCL_ERROR;
 	}
     } else if (numWords % 2 || numWords == 0) {
 	/*
@@ -1173,13 +1967,15 @@ TclCompileSwitchCmd(
      * but it handles the most common case well enough.
      */
 
+    /* Both methods push the value to match against onto the stack. */
+    CompileWord(envPtr, valueTokenPtr, interp, valueIndex);
+
     if (mode == Switch_Exact) {
-	IssueSwitchJumpTable(interp, envPtr, mapPtr, eclIndex, valueIndex,
-		valueTokenPtr, numWords, bodyToken, bodyLines, bodyContLines);
+	IssueSwitchJumpTable(interp, envPtr, valueIndex, numWords, bodyToken,
+		bodyLines, bodyContLines);
     } else {
-	IssueSwitchChainedTests(interp, envPtr, mapPtr, eclIndex, mode,noCase,
-		valueIndex, valueTokenPtr, numWords, bodyToken, bodyLines,
-		bodyContLines);
+	IssueSwitchChainedTests(interp, envPtr, mode, noCase, valueIndex,
+		numWords, bodyToken, bodyLines, bodyContLines);
     }
     result = TCL_OK;
 
@@ -1217,13 +2013,9 @@ static void
 IssueSwitchChainedTests(
     Tcl_Interp *interp,		/* Context for compiling script bodies. */
     CompileEnv *envPtr,		/* Holds resulting instructions. */
-    ExtCmdLoc *mapPtr,		/* For mapping tokens to their source code
-				 * location. */
-    int eclIndex,
     int mode,			/* Exact, Glob or Regexp */
     int noCase,			/* Case-insensitivity flag. */
     int valueIndex,		/* The value to match against. */
-    Tcl_Token *valueTokenPtr,
     int numBodyTokens,		/* Number of tokens describing things the
 				 * switch can match against and bodies to
 				 * execute when the match succeeds. */
@@ -1233,7 +2025,6 @@ IssueSwitchChainedTests(
     int **bodyContLines)	/* Array of continuation line info. */
 {
     enum {Switch_Exact, Switch_Glob, Switch_Regexp};
-    int savedStackDepth = envPtr->currStackDepth;
     int foundDefault;		/* Flag to indicate whether a "default" clause
 				 * is present. */
     JumpFixup *fixupArray;	/* Array of forward-jump fixup records. */
@@ -1249,13 +2040,6 @@ IssueSwitchChainedTests(
     int i;
 
     /*
-     * First, we push the value we're matching against on the stack.
-     */
-
-    SetLineInformation(valueIndex);
-    CompileTokens(envPtr, valueTokenPtr, interp);
-
-    /*
      * Generate a test for each arm.
      */
 
@@ -1268,7 +2052,6 @@ IssueSwitchChainedTests(
     foundDefault = 0;
     for (i=0 ; i<numBodyTokens ; i+=2) {
 	nextArmFixupIndex = -1;
-	envPtr->currStackDepth = savedStackDepth + 1;
 	if (i!=numBodyTokens-2 || bodyToken[numBodyTokens-2]->size != 7 ||
 		memcmp(bodyToken[numBodyTokens-2]->start, "default", 7)) {
 	    /*
@@ -1277,14 +2060,14 @@ IssueSwitchChainedTests(
 
 	    switch (mode) {
 	    case Switch_Exact:
-		TclEmitOpcode(INST_DUP,				envPtr);
+		OP(	DUP);
 		TclCompileTokens(interp, bodyToken[i], 1,	envPtr);
-		TclEmitOpcode(INST_STR_EQ,			envPtr);
+		OP(	STR_EQ);
 		break;
 	    case Switch_Glob:
 		TclCompileTokens(interp, bodyToken[i], 1,	envPtr);
-		TclEmitInstInt4(INST_OVER, 1,			envPtr);
-		TclEmitInstInt1(INST_STR_MATCH, noCase,		envPtr);
+		OP4(	OVER, 1);
+		OP1(	STR_MATCH, noCase);
 		break;
 	    case Switch_Regexp:
 		simple = exact = 0;
@@ -1302,7 +2085,7 @@ IssueSwitchChainedTests(
 			 * when the RE == "".
 			 */
 
-			PushLiteral(envPtr, "1", 1);
+			PUSH("1");
 			break;
 		    }
 
@@ -1312,7 +2095,7 @@ IssueSwitchChainedTests(
 		     */
 
 		    if (TclReToGlob(NULL, bodyToken[i]->start,
-			    bodyToken[i]->size, &ds, &exact) == TCL_OK) {
+			    bodyToken[i]->size, &ds, &exact, NULL) == TCL_OK){
 			simple = 1;
 			PushLiteral(envPtr, Tcl_DStringValue(&ds),
 				Tcl_DStringLength(&ds));
@@ -1323,7 +2106,7 @@ IssueSwitchChainedTests(
 		    TclCompileTokens(interp, bodyToken[i], 1, envPtr);
 		}
 
-		TclEmitInstInt4(INST_OVER, 1,			envPtr);
+		OP4(	OVER, 1);
 		if (!simple) {
 		    /*
 		     * Pass correct RE compile flags. We use only Int1
@@ -1335,11 +2118,11 @@ IssueSwitchChainedTests(
 		    int cflags = TCL_REG_ADVANCED
 			    | (noCase ? TCL_REG_NOCASE : 0);
 
-		    TclEmitInstInt1(INST_REGEXP, cflags,	envPtr);
+		    OP1(REGEXP, cflags);
 		} else if (exact && !noCase) {
-		    TclEmitOpcode(INST_STR_EQ,			envPtr);
+		    OP(	STR_EQ);
 		} else {
-		    TclEmitInstInt1(INST_STR_MATCH, noCase,	envPtr);
+		    OP1(STR_MATCH, noCase);
 		}
 		break;
 	    default:
@@ -1399,13 +2182,12 @@ IssueSwitchChainedTests(
 	}
 
 	/*
-	 * Now do the actual compilation. Note that we do not use CompileBody
+	 * Now do the actual compilation. Note that we do not use BODY() 
 	 * because we may have synthesized the tokens in a non-standard
 	 * pattern.
 	 */
 
-	TclEmitOpcode(INST_POP,					envPtr);
-	envPtr->currStackDepth = savedStackDepth + 1;
+	OP(	POP);
 	envPtr->line = bodyLines[i+1];		/* TIP #280 */
 	envPtr->clNext = bodyContLines[i+1];	/* TIP #280 */
 	TclCompileCmdWord(interp, bodyToken[i+1], 1, envPtr);
@@ -1426,8 +2208,8 @@ IssueSwitchChainedTests(
      */
 
     if (!foundDefault) {
-	TclEmitOpcode(INST_POP,					envPtr);
-	PushLiteral(envPtr, "", 0);
+	OP(	POP);
+	PUSH("");
     }
 
     /*
@@ -1463,8 +2245,6 @@ IssueSwitchChainedTests(
     }
     TclStackFree(interp, fixupTargetArray);
     TclStackFree(interp, fixupArray);
-
-    envPtr->currStackDepth = savedStackDepth + 1;
 }
 
 /*
@@ -1484,11 +2264,7 @@ static void
 IssueSwitchJumpTable(
     Tcl_Interp *interp,		/* Context for compiling script bodies. */
     CompileEnv *envPtr,		/* Holds resulting instructions. */
-    ExtCmdLoc *mapPtr,		/* For mapping tokens to their source code
-				 * location. */
-    int eclIndex,
     int valueIndex,		/* The value to match against. */
-    Tcl_Token *valueTokenPtr,
     int numBodyTokens,		/* Number of tokens describing things the
 				 * switch can match against and bodies to
 				 * execute when the match succeeds. */
@@ -1504,13 +2280,6 @@ IssueSwitchJumpTable(
     Tcl_HashEntry *hPtr;
 
     /*
-     * First, we push the value we're matching against on the stack.
-     */
-
-    SetLineInformation(valueIndex);
-    CompileTokens(envPtr, valueTokenPtr, interp);
-
-    /*
      * Compile the switch by using a jump table, which is basically a
      * hashtable that maps from literal values to match against to the offset
      * (relative to the INST_JUMP_TABLE instruction) to jump to. The jump
@@ -1537,9 +2306,9 @@ IssueSwitchJumpTable(
      */
 
     jumpLocation = CurrentOffset(envPtr);
-    TclEmitInstInt4(INST_JUMP_TABLE, infoIndex,			envPtr);
+    OP4(	JUMP_TABLE, infoIndex);
     jumpToDefault = CurrentOffset(envPtr);
-    TclEmitInstInt4(INST_JUMP4, 0,				envPtr);
+    OP4(	JUMP4, 0);
 
     for (i=0 ; i<numBodyTokens ; i+=2) {
 	/*
@@ -1630,7 +2399,8 @@ IssueSwitchJumpTable(
 	     * rewriting when we fixed this all up.
 	     */
 
-	    TclEmitInstInt4(INST_JUMP4, 0,			envPtr);
+	    OP4(	JUMP4, 0);
+	    TclAdjustStackDepth(-1, envPtr);
 	}
     }
 
@@ -1643,7 +2413,7 @@ IssueSwitchJumpTable(
     if (!foundDefault) {
 	TclStoreInt4AtPtr(CurrentOffset(envPtr)-jumpToDefault,
 		envPtr->codeStart+jumpToDefault+1);
-	PushLiteral(envPtr, "", 0);
+	PUSH("");
     }
 
     /*
@@ -1675,11 +2445,13 @@ IssueSwitchJumpTable(
  *	DupJumptableInfo: a copy of the jump-table
  *	FreeJumptableInfo: none
  *	PrintJumptableInfo: none
+ *	DisassembleJumptableInfo: none
  *
  * Side effects:
  *	DupJumptableInfo: allocates memory
  *	FreeJumptableInfo: releases memory
  *	PrintJumptableInfo: none
+ *	DisassembleJumptableInfo: none
  *
  *----------------------------------------------------------------------
  */
@@ -1742,6 +2514,77 @@ PrintJumptableInfo(
 		keyPtr, pcOffset + offset);
     }
 }
+
+static void
+DisassembleJumptableInfo(
+    ClientData clientData,
+    Tcl_Obj *dictObj,
+    ByteCode *codePtr,
+    unsigned int pcOffset)
+{
+    register JumptableInfo *jtPtr = clientData;
+    Tcl_Obj *mapping = Tcl_NewObj();
+    Tcl_HashEntry *hPtr;
+    Tcl_HashSearch search;
+    const char *keyPtr;
+    int offset;
+
+    hPtr = Tcl_FirstHashEntry(&jtPtr->hashTable, &search);
+    for (; hPtr ; hPtr = Tcl_NextHashEntry(&search)) {
+	keyPtr = Tcl_GetHashKey(&jtPtr->hashTable, hPtr);
+	offset = PTR2INT(Tcl_GetHashValue(hPtr));
+	Tcl_DictObjPut(NULL, mapping, Tcl_NewStringObj(keyPtr, -1),
+		Tcl_NewIntObj(offset));
+    }
+    Tcl_DictObjPut(NULL, dictObj, Tcl_NewStringObj("mapping", -1), mapping);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileTailcallCmd --
+ *
+ *	Procedure called to compile the "tailcall" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "tailcall" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileTailcallCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr = parsePtr->tokenPtr;
+    int i;
+
+    if (parsePtr->numWords < 2 || parsePtr->numWords > 256
+	    || envPtr->procPtr == NULL) {
+	return TCL_ERROR;
+    }
+
+    /* make room for the nsObjPtr */
+    /* TODO: Doesn't this have to be a known value? */
+    CompileWord(envPtr, tokenPtr, interp, 0);
+    for (i=1 ; i<parsePtr->numWords ; i++) {
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, i);
+    }
+    TclEmitInstInt1(	INST_TAILCALL, parsePtr->numWords,	envPtr);
+    return TCL_OK;
+}
 
 /*
  *----------------------------------------------------------------------
@@ -1774,6 +2617,7 @@ TclCompileThrowCmd(
     int numWords = parsePtr->numWords;
     Tcl_Token *codeToken, *msgToken;
     Tcl_Obj *objPtr;
+    int codeKnown, codeIsList, codeIsValid, len;
 
     if (numWords != 3) {
 	return TCL_ERROR;
@@ -1783,74 +2627,66 @@ TclCompileThrowCmd(
 
     TclNewObj(objPtr);
     Tcl_IncrRefCount(objPtr);
-    if (TclWordKnownAtCompileTime(codeToken, objPtr)) {
-	Tcl_Obj *errPtr, *dictPtr;
-	const char *string;
-	int len;
 
-	/*
-	 * The code is known at compilation time. This allows us to issue a
-	 * very efficient sequence of instructions.
-	 */
+    codeKnown = TclWordKnownAtCompileTime(codeToken, objPtr);
 
-	if (Tcl_ListObjLength(interp, objPtr, &len) != TCL_OK) {
-	    /*
-	     * Must still do this; might generate an error when getting this
-	     * "ignored" value prepared as an argument.
-	     */
+    /*
+     * First we must emit the code to substitute the arguments.  This
+     * must come first in case substitution raises errors.
+     */
+    if (!codeKnown) {
+	CompileWord(envPtr, codeToken, interp, 1);
+	PUSH(			"-errorcode");
+    }
+    CompileWord(envPtr, msgToken, interp, 2);
 
-	    CompileWord(envPtr, msgToken, interp, 2);
-	    TclCompileSyntaxError(interp, envPtr);
-	    Tcl_DecrRefCount(objPtr);
-	    return TCL_OK;
-	}
-	if (len == 0) {
-	    /*
-	     * Must still do this; might generate an error when getting this
-	     * "ignored" value prepared as an argument.
-	     */
+    codeIsList = codeKnown && (TCL_OK == 
+	    Tcl_ListObjLength(interp, objPtr, &len));
+    codeIsValid = codeIsList && (len != 0);
+
+    if (codeIsValid) {
+	Tcl_Obj *errPtr, *dictPtr;
 
-	    CompileWord(envPtr, msgToken, interp, 2);
-	    goto issueErrorForEmptyCode;
-	}
 	TclNewLiteralStringObj(errPtr, "-errorcode");
 	TclNewObj(dictPtr);
 	Tcl_DictObjPut(NULL, dictPtr, errPtr, objPtr);
-	Tcl_IncrRefCount(dictPtr);
-	string = Tcl_GetStringFromObj(dictPtr, &len);
-	CompileWord(envPtr, msgToken, interp, 2);
-	PushLiteral(envPtr, string, len);
-	TclDecrRefCount(dictPtr);
-	OP44(				RETURN_IMM, 1, 0);
-    } else {
-	/*
-	 * When the code token is not known at compilation time, we need to do
-	 * a little bit more work. The main tricky bit here is that the error
-	 * code has to be a list (a [throw] restriction) so we must emit extra
-	 * instructions to enforce that condition.
-	 */
+	TclEmitPush(TclAddLiteralObj(envPtr, dictPtr, NULL), envPtr);
+    }
+    TclDecrRefCount(objPtr);
 
-	CompileWord(envPtr, codeToken, interp, 1);
-	PUSH(				"-errorcode");
-	CompileWord(envPtr, msgToken, interp, 2);
-	OP4(				REVERSE, 3);
-	OP(				DUP);
-	OP(				LIST_LENGTH);
-	OP1(				JUMP_FALSE1, 16);
-	OP4(				LIST, 2);
-	OP44(				RETURN_IMM, 1, 0);
+    /*
+     * Simpler bytecodes when we detect invalid arguments at compile time.
+     */
+    if (codeKnown && !codeIsValid) {
+	OP(			POP);
+	if (codeIsList) {
+	    /* Must be an empty list */
+	    goto issueErrorForEmptyCode;
+	}
+	TclCompileSyntaxError(interp, envPtr);
+	return TCL_OK;
+    }
 
+    if (!codeKnown) {
 	/*
-	 * Generate an error for being an empty list. Can't leverage anything
-	 * else to do this for us.
+	 * Argument validity checking has to be done by bytecode at
+	 * run time.
 	 */
-
+	OP4(			REVERSE, 3);
+	OP(			DUP);
+	OP(			LIST_LENGTH);
+	OP1(			JUMP_FALSE1, 16);
+	OP4(			LIST, 2);
+	OP44(			RETURN_IMM, TCL_ERROR, 0);
+	TclAdjustStackDepth(2, envPtr);
+	OP(			POP);
+	OP(			POP);
+	OP(			POP);
     issueErrorForEmptyCode:
-	PUSH(				"type must be non-empty list");
-	PUSH(				"");
-	OP44(				RETURN_IMM, 1, 0);
+	PUSH(			"type must be non-empty list");
+	PUSH(			"-errorcode {TCL OPERATION THROW BADEXCEPTION}");
     }
-    TclDecrRefCount(objPtr);
+    OP44(			RETURN_IMM, TCL_ERROR, 0);
     return TCL_OK;
 }
 
@@ -1900,8 +2736,7 @@ TclCompileTryCmd(
 	 */
 
 	DefineLineInformation;	/* TIP #280 */
-	SetLineInformation(1);
-	CompileBody(envPtr, bodyToken, interp);
+	BODY(bodyToken, 1);
 	return TCL_OK;
     }
 
@@ -1992,12 +2827,11 @@ TclCompileTryCmd(
 		int len;
 		const char *varname = Tcl_GetStringFromObj(objv[0], &len);
 
-		if (!TclIsLocalScalar(varname, len)) {
+		resultVarIndices[i] = LocalScalar(varname, len, envPtr);
+		if (resultVarIndices[i] < 0) {
 		    TclDecrRefCount(tmpObj);
 		    goto failedToCompile;
 		}
-		resultVarIndices[i] =
-			TclFindCompiledLocal(varname, len, 1, envPtr);
 	    } else {
 		resultVarIndices[i] = -1;
 	    }
@@ -2005,12 +2839,11 @@ TclCompileTryCmd(
 		int len;
 		const char *varname = Tcl_GetStringFromObj(objv[1], &len);
 
-		if (!TclIsLocalScalar(varname, len)) {
+		optionVarIndices[i] = LocalScalar(varname, len, envPtr);
+		if (optionVarIndices[i] < 0) {
 		    TclDecrRefCount(tmpObj);
 		    goto failedToCompile;
 		}
-		optionVarIndices[i] =
-			TclFindCompiledLocal(varname, len, 1, envPtr);
 	    } else {
 		optionVarIndices[i] = -1;
 	    }
@@ -2058,14 +2891,17 @@ TclCompileTryCmd(
      * Issue the bytecode.
      */
 
-    if (finallyToken) {
+    if (!finallyToken) {
+	result = IssueTryClausesInstructions(interp, envPtr, bodyToken,
+		numHandlers, matchCodes, matchClauses, resultVarIndices,
+		optionVarIndices, handlerTokens);
+    } else if (numHandlers == 0) {
 	result = IssueTryFinallyInstructions(interp, envPtr, bodyToken,
+		finallyToken);
+    } else {
+	result = IssueTryClausesFinallyInstructions(interp, envPtr, bodyToken,
 		numHandlers, matchCodes, matchClauses, resultVarIndices,
 		optionVarIndices, handlerTokens, finallyToken);
-    } else {
-	result = IssueTryInstructions(interp, envPtr, bodyToken, numHandlers,
-		matchCodes, matchClauses, resultVarIndices, optionVarIndices,
-		handlerTokens);
     }
 
     /*
@@ -2091,12 +2927,13 @@ TclCompileTryCmd(
 /*
  *----------------------------------------------------------------------
  *
- * IssueTryInstructions, IssueTryFinallyInstructions --
+ * IssueTryClausesInstructions, IssueTryClausesFinallyInstructions,
+ * IssueTryFinallyInstructions --
  *
  *	The code generators for [try]. Split from the parsing engine for
- *	reasons of developer sanity, and also split between no-finally and
- *	with-finally cases because so many of the details of generation vary
- *	between the two.
+ *	reasons of developer sanity, and also split between no-finally,
+ *	just-finally and with-finally cases because so many of the details of
+ *	generation vary between the three.
  *
  *	The macros below make the instruction issuing easier to follow.
  *
@@ -2104,7 +2941,7 @@ TclCompileTryCmd(
  */
 
 static int
-IssueTryInstructions(
+IssueTryClausesInstructions(
     Tcl_Interp *interp,
     CompileEnv *envPtr,
     Tcl_Token *bodyToken,
@@ -2117,31 +2954,51 @@ IssueTryInstructions(
 {
     DefineLineInformation;	/* TIP #280 */
     int range, resultVar, optionsVar;
-    int i, j, len, forwardsNeedFixing = 0;
+    int i, j, len, forwardsNeedFixing = 0, trapZero = 0, afterBody = 0;
     int *addrsToFix, *forwardsToFix, notCodeJumpSource, notECJumpSource;
+    int *noError;
     char buf[TCL_INTEGER_SPACE];
 
-    resultVar = TclFindCompiledLocal(NULL, 0, 1, envPtr);
-    optionsVar = TclFindCompiledLocal(NULL, 0, 1, envPtr);
+    resultVar = AnonymousLocal(envPtr);
+    optionsVar = AnonymousLocal(envPtr);
     if (resultVar < 0 || optionsVar < 0) {
 	return TCL_ERROR;
     }
 
     /*
+     * Check if we're supposed to trap a normal TCL_OK completion of the body.
+     * If not, we can handle that case much more efficiently.
+     */
+
+    for (i=0 ; i<numHandlers ; i++) {
+	if (matchCodes[i] == 0) {
+	    trapZero = 1;
+	    break;
+	}
+    }
+
+    /*
      * Compile the body, trapping any error in it so that we can trap on it
      * and/or run a finally clause. Note that there must be at least one
      * on/trap clause; when none is present, this whole function is not called
      * (and it's never called when there's a finally clause).
      */
 
-    range = DeclareExceptionRange(envPtr, CATCH_EXCEPTION_RANGE);
+    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
     OP4(				BEGIN_CATCH4, range);
     ExceptionRangeStarts(envPtr, range);
     BODY(				bodyToken, 1);
     ExceptionRangeEnds(envPtr, range);
-    PUSH(				"0");
-    OP4(				REVERSE, 2);
-    OP1(				JUMP1, 4);
+    if (!trapZero) {
+	OP(				END_CATCH);
+	JUMP4(				JUMP, afterBody);
+	TclAdjustStackDepth(-1, envPtr);
+    } else {
+	PUSH(				"0");
+	OP4(				REVERSE, 2);
+	OP1(				JUMP1, 4);
+	TclAdjustStackDepth(-2, envPtr);
+    }
     ExceptionRangeTarget(envPtr, range, catchOffset);
     OP(					PUSH_RETURN_CODE);
     OP(					PUSH_RESULT);
@@ -2161,14 +3018,17 @@ IssueTryInstructions(
 
     addrsToFix = TclStackAlloc(interp, sizeof(int)*numHandlers);
     forwardsToFix = TclStackAlloc(interp, sizeof(int)*numHandlers);
+    noError = TclStackAlloc(interp, sizeof(int)*numHandlers);
 
     for (i=0 ; i<numHandlers ; i++) {
+	noError[i] = -1;
 	sprintf(buf, "%d", matchCodes[i]);
 	OP(				DUP);
-	PUSH(				buf);
+	PushLiteral(envPtr, buf, strlen(buf));
 	OP(				EQ);
-	JUMP(notCodeJumpSource,		JUMP_FALSE4);
+	JUMP4(				JUMP_FALSE, notCodeJumpSource);
 	if (matchClauses[i]) {
+	    const char *p;
 	    Tcl_ListObjLength(NULL, matchClauses[i], &len);
 
 	    /*
@@ -2178,10 +3038,12 @@ IssueTryInstructions(
 	    LOAD(			optionsVar);
 	    PUSH(			"-errorcode");
 	    OP4(			DICT_GET, 1);
+	    TclAdjustStackDepth(-1, envPtr);
 	    OP44(			LIST_RANGE_IMM, 0, len-1);
-	    PUSH(			TclGetString(matchClauses[i]));
+	    p = Tcl_GetStringFromObj(matchClauses[i], &len);
+	    PushLiteral(envPtr, p, len);
 	    OP(				STR_EQ);
-	    JUMP(notECJumpSource,	JUMP_FALSE4);
+	    JUMP4(			JUMP_FALSE, notECJumpSource);
 	} else {
 	    notECJumpSource = -1; /* LINT */
 	}
@@ -2205,8 +3067,11 @@ IssueTryInstructions(
 	}
 	if (!handlerTokens[i]) {
 	    forwardsNeedFixing = 1;
-	    JUMP(forwardsToFix[i],	JUMP4);
+	    JUMP4(			JUMP, forwardsToFix[i]);
+	    TclAdjustStackDepth(1, envPtr);
 	} else {
+	    int dontChangeOptions;
+
 	    forwardsToFix[i] = -1;
 	    if (forwardsNeedFixing) {
 		forwardsNeedFixing = 0;
@@ -2214,18 +3079,44 @@ IssueTryInstructions(
 		    if (forwardsToFix[j] == -1) {
 			continue;
 		    }
-		    FIXJUMP(forwardsToFix[j]);
+		    FIXJUMP4(forwardsToFix[j]);
 		    forwardsToFix[j] = -1;
 		}
 	    }
+	    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
+	    OP4(			BEGIN_CATCH4, range);
+	    ExceptionRangeStarts(envPtr, range);
 	    BODY(			handlerTokens[i], 5+i*4);
+	    ExceptionRangeEnds(envPtr, range);
+	    OP(				END_CATCH);
+	    JUMP4(			JUMP, noError[i]);
+	    ExceptionRangeTarget(envPtr, range, catchOffset);
+	    TclAdjustStackDepth(-1, envPtr);
+	    OP(				PUSH_RESULT);
+	    OP(				PUSH_RETURN_OPTIONS);
+	    OP(				PUSH_RETURN_CODE);
+	    OP(				END_CATCH);
+	    PUSH(			"1");
+	    OP(				EQ);
+	    JUMP1(			JUMP_FALSE, dontChangeOptions);
+	    LOAD(			optionsVar);
+	    OP4(			REVERSE, 2);
+	    STORE(			optionsVar);
+	    OP(				POP);
+	    PUSH(			"-during");
+	    OP4(			REVERSE, 2);
+	    OP44(			DICT_SET, 1, optionsVar);
+	    TclAdjustStackDepth(-1, envPtr);
+	    FIXJUMP1(		dontChangeOptions);
+	    OP4(			REVERSE, 2);
+	    INVOKE(			RETURN_STK);
 	}
 
-	JUMP(addrsToFix[i],		JUMP4);
+	JUMP4(				JUMP, addrsToFix[i]);
 	if (matchClauses[i]) {
-	    FIXJUMP(notECJumpSource);
+	    FIXJUMP4(	notECJumpSource);
 	}
-	FIXJUMP(notCodeJumpSource);
+	FIXJUMP4(	notCodeJumpSource);
     }
 
     /*
@@ -2237,23 +3128,30 @@ IssueTryInstructions(
     OP(					POP);
     LOAD(				optionsVar);
     LOAD(				resultVar);
-    OP(					RETURN_STK);
+    INVOKE(				RETURN_STK);
 
     /*
      * Fix all the jumps from taken clauses to here (which is the end of the
      * [try]).
      */
 
+    if (!trapZero) {
+	FIXJUMP4(afterBody);
+    }
     for (i=0 ; i<numHandlers ; i++) {
-	FIXJUMP(addrsToFix[i]);
+	FIXJUMP4(addrsToFix[i]);
+	if (noError[i] != -1) {
+	    FIXJUMP4(noError[i]);
+	}
     }
+    TclStackFree(interp, noError);
     TclStackFree(interp, forwardsToFix);
     TclStackFree(interp, addrsToFix);
     return TCL_OK;
 }
 
 static int
-IssueTryFinallyInstructions(
+IssueTryClausesFinallyInstructions(
     Tcl_Interp *interp,
     CompileEnv *envPtr,
     Tcl_Token *bodyToken,
@@ -2266,30 +3164,53 @@ IssueTryFinallyInstructions(
     Tcl_Token *finallyToken)	/* Not NULL */
 {
     DefineLineInformation;	/* TIP #280 */
-    int savedStackDepth = envPtr->currStackDepth;
     int range, resultVar, optionsVar, i, j, len, forwardsNeedFixing = 0;
+    int trapZero = 0, afterBody = 0, finalOK, finalError, noFinalError;
     int *addrsToFix, *forwardsToFix, notCodeJumpSource, notECJumpSource;
     char buf[TCL_INTEGER_SPACE];
 
-    resultVar = TclFindCompiledLocal(NULL, 0, 1, envPtr);
-    optionsVar = TclFindCompiledLocal(NULL, 0, 1, envPtr);
+    resultVar = AnonymousLocal(envPtr);
+    optionsVar = AnonymousLocal(envPtr);
     if (resultVar < 0 || optionsVar < 0) {
 	return TCL_ERROR;
     }
 
     /*
+     * Check if we're supposed to trap a normal TCL_OK completion of the body.
+     * If not, we can handle that case much more efficiently.
+     */
+
+    for (i=0 ; i<numHandlers ; i++) {
+	if (matchCodes[i] == 0) {
+	    trapZero = 1;
+	    break;
+	}
+    }
+
+    /*
      * Compile the body, trapping any error in it so that we can trap on it
      * (if any trap matches) and run a finally clause.
      */
 
-    range = DeclareExceptionRange(envPtr, CATCH_EXCEPTION_RANGE);
+    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
     OP4(				BEGIN_CATCH4, range);
     ExceptionRangeStarts(envPtr, range);
     BODY(				bodyToken, 1);
     ExceptionRangeEnds(envPtr, range);
-    PUSH(				"0");
-    OP4(				REVERSE, 2);
-    OP1(				JUMP1, 4);
+    if (!trapZero) {
+	OP(				END_CATCH);
+	STORE(				resultVar);
+	OP(				POP);
+	PUSH(				"-level 0 -code 0");
+	STORE(				optionsVar);
+	OP(				POP);
+	JUMP4(				JUMP, afterBody);
+    } else {
+	PUSH(				"0");
+	OP4(				REVERSE, 2);
+	OP1(				JUMP1, 4);
+	TclAdjustStackDepth(-2, envPtr);
+    }
     ExceptionRangeTarget(envPtr, range, catchOffset);
     OP(					PUSH_RETURN_CODE);
     OP(					PUSH_RESULT);
@@ -2299,160 +3220,176 @@ IssueTryFinallyInstructions(
     OP(					POP);
     STORE(				resultVar);
     OP(					POP);
-    envPtr->currStackDepth = savedStackDepth + 1;
 
     /*
      * Now we handle all the registered 'on' and 'trap' handlers in order.
+     *
+     * Slight overallocation, but reduces size of this function.
      */
 
-    if (numHandlers) {
-	/*
-	 * Slight overallocation, but reduces size of this function.
-	 */
-
-	addrsToFix = TclStackAlloc(interp, sizeof(int)*numHandlers);
-	forwardsToFix = TclStackAlloc(interp, sizeof(int)*numHandlers);
-
-	for (i=0 ; i<numHandlers ; i++) {
-	    sprintf(buf, "%d", matchCodes[i]);
-	    OP(				DUP);
-	    PUSH(			buf);
-	    OP(				EQ);
-	    JUMP(notCodeJumpSource,	JUMP_FALSE4);
-	    if (matchClauses[i]) {
-		Tcl_ListObjLength(NULL, matchClauses[i], &len);
+    addrsToFix = TclStackAlloc(interp, sizeof(int)*numHandlers);
+    forwardsToFix = TclStackAlloc(interp, sizeof(int)*numHandlers);
 
-		/*
-		 * Match the errorcode according to try/trap rules.
-		 */
+    for (i=0 ; i<numHandlers ; i++) {
+	int noTrapError, trapError;
+	const char *p;
 
-		LOAD(			optionsVar);
-		PUSH(			"-errorcode");
-		OP4(			DICT_GET, 1);
-		OP44(			LIST_RANGE_IMM, 0, len-1);
-		PUSH(			TclGetString(matchClauses[i]));
-		OP(			STR_EQ);
-		JUMP(notECJumpSource,	JUMP_FALSE4);
-	    } else {
-		notECJumpSource = -1; /* LINT */
-	    }
+	sprintf(buf, "%d", matchCodes[i]);
+	OP(				DUP);
+	PushLiteral(envPtr, buf, strlen(buf));
+	OP(				EQ);
+	JUMP4(				JUMP_FALSE, notCodeJumpSource);
+	if (matchClauses[i]) {
+	    Tcl_ListObjLength(NULL, matchClauses[i], &len);
 
 	    /*
-	     * There is a finally clause, so we need a fairly complex sequence
-	     * of instructions to deal with an on/trap handler because we must
-	     * call the finally handler *and* we need to substitute the result
-	     * from a failed trap for the result from the main script.
+	     * Match the errorcode according to try/trap rules.
 	     */
 
-	    if (resultVars[i] >= 0 || handlerTokens[i]) {
-		range = DeclareExceptionRange(envPtr, CATCH_EXCEPTION_RANGE);
-		OP4(			BEGIN_CATCH4, range);
-		ExceptionRangeStarts(envPtr, range);
-	    }
-	    if (resultVars[i] >= 0) {
-		LOAD(			resultVar);
-		STORE(			resultVars[i]);
-		OP(			POP);
-		if (optionVars[i] >= 0) {
-		    LOAD(		optionsVar);
-		    STORE(		optionVars[i]);
-		    OP(			POP);
-		}
+	    LOAD(			optionsVar);
+	    PUSH(			"-errorcode");
+	    OP4(			DICT_GET, 1);
+	    TclAdjustStackDepth(-1, envPtr);
+	    OP44(			LIST_RANGE_IMM, 0, len-1);
+	    p = Tcl_GetStringFromObj(matchClauses[i], &len);
+	    PushLiteral(envPtr, p, len);
+	    OP(				STR_EQ);
+	    JUMP4(			JUMP_FALSE, notECJumpSource);
+	} else {
+	    notECJumpSource = -1; /* LINT */
+	}
+	OP(				POP);
 
-		if (!handlerTokens[i]) {
-		    /*
-		     * No handler. Will not be the last handler (that is a
-		     * condition that is checked by the caller). Chain to the
-		     * next one.
-		     */
+	/*
+	 * There is a finally clause, so we need a fairly complex sequence of
+	 * instructions to deal with an on/trap handler because we must call
+	 * the finally handler *and* we need to substitute the result from a
+	 * failed trap for the result from the main script.
+	 */
 
-		    ExceptionRangeEnds(envPtr, range);
-		    OP(			END_CATCH);
-		    forwardsNeedFixing = 1;
-		    JUMP(forwardsToFix[i], JUMP4);
-		    goto finishTrapCatchHandling;
-		}
-	    } else if (!handlerTokens[i]) {
+	if (resultVars[i] >= 0 || handlerTokens[i]) {
+	    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
+	    OP4(			BEGIN_CATCH4, range);
+	    ExceptionRangeStarts(envPtr, range);
+	}
+	if (resultVars[i] >= 0) {
+	    LOAD(			resultVar);
+	    STORE(			resultVars[i]);
+	    OP(				POP);
+	    if (optionVars[i] >= 0) {
+		LOAD(			optionsVar);
+		STORE(			optionVars[i]);
+		OP(			POP);
+	    }
+
+	    if (!handlerTokens[i]) {
 		/*
-		 * No handler. Will not be the last handler (that condition is
-		 * checked by the caller). Chain to the next one.
+		 * No handler. Will not be the last handler (that is a
+		 * condition that is checked by the caller). Chain to the next
+		 * one.
 		 */
 
+		ExceptionRangeEnds(envPtr, range);
+		OP(			END_CATCH);
 		forwardsNeedFixing = 1;
-		JUMP(forwardsToFix[i],	JUMP4);
-		goto endOfThisArm;
+		JUMP4(			JUMP, forwardsToFix[i]);
+		goto finishTrapCatchHandling;
 	    }
-
+	} else if (!handlerTokens[i]) {
 	    /*
-	     * Got a handler. Make sure that any pending patch-up actions from
-	     * previous unprocessed handlers are dealt with now that we know
-	     * where they are to jump to.
+	     * No handler. Will not be the last handler (that condition is
+	     * checked by the caller). Chain to the next one.
 	     */
 
-	    if (forwardsNeedFixing) {
-		forwardsNeedFixing = 0;
-		OP1(			JUMP1, 7);
-		for (j=0 ; j<i ; j++) {
-		    if (forwardsToFix[j] == -1) {
-			continue;
-		    }
-		    FIXJUMP(forwardsToFix[j]);
-		    forwardsToFix[j] = -1;
-		}
-		OP4(			BEGIN_CATCH4, range);
-	    }
-	    BODY(			handlerTokens[i], 5+i*4);
-	    ExceptionRangeEnds(envPtr, range);
-	    OP(				PUSH_RETURN_OPTIONS);
-	    OP4(			REVERSE, 2);
-	    OP1(			JUMP1, 4);
-	    forwardsToFix[i] = -1;
-
-	    /*
-	     * Error in handler or setting of variables; replace the stored
-	     * exception with the new one. Note that we only push this if we
-	     * have either a body or some variable setting here. Otherwise
-	     * this code is unreachable.
-	     */
+	    forwardsNeedFixing = 1;
+	    JUMP4(			JUMP, forwardsToFix[i]);
+	    goto endOfThisArm;
+	}
 
-	finishTrapCatchHandling:
-	    ExceptionRangeTarget(envPtr, range, catchOffset);
-	    OP(				PUSH_RETURN_OPTIONS);
-	    OP(				PUSH_RESULT);
-	    OP(				END_CATCH);
-	    STORE(			resultVar);
-	    OP(				POP);
-	    STORE(			optionsVar);
-	    OP(				POP);
+	/*
+	 * Got a handler. Make sure that any pending patch-up actions from
+	 * previous unprocessed handlers are dealt with now that we know where
+	 * they are to jump to.
+	 */
 
-	endOfThisArm:
-	    if (i+1 < numHandlers) {
-		JUMP(addrsToFix[i],	JUMP4);
-	    }
-	    if (matchClauses[i]) {
-		FIXJUMP(notECJumpSource);
+	if (forwardsNeedFixing) {
+	    forwardsNeedFixing = 0;
+	    OP1(			JUMP1, 7);
+	    for (j=0 ; j<i ; j++) {
+		if (forwardsToFix[j] == -1) {
+		    continue;
+		}
+		FIXJUMP4(	forwardsToFix[j]);
+		forwardsToFix[j] = -1;
 	    }
-	    FIXJUMP(notCodeJumpSource);
+	    OP4(			BEGIN_CATCH4, range);
 	}
+	BODY(				handlerTokens[i], 5+i*4);
+	ExceptionRangeEnds(envPtr, range);
+	PUSH(				"0");
+	OP(				PUSH_RETURN_OPTIONS);
+	OP4(				REVERSE, 3);
+	OP1(				JUMP1, 5);
+	TclAdjustStackDepth(-3, envPtr);
+	forwardsToFix[i] = -1;
 
 	/*
-	 * Fix all the jumps from taken clauses to here (the start of the
-	 * finally clause).
+	 * Error in handler or setting of variables; replace the stored
+	 * exception with the new one. Note that we only push this if we have
+	 * either a body or some variable setting here. Otherwise this code is
+	 * unreachable.
 	 */
 
-	for (i=0 ; i<numHandlers-1 ; i++) {
-	    FIXJUMP(addrsToFix[i]);
+    finishTrapCatchHandling:
+	ExceptionRangeTarget(envPtr, range, catchOffset);
+	OP(				PUSH_RETURN_OPTIONS);
+	OP(				PUSH_RETURN_CODE);
+	OP(				PUSH_RESULT);
+	OP(				END_CATCH);
+	STORE(				resultVar);
+	OP(				POP);
+	PUSH(				"1");
+	OP(				EQ);
+	JUMP1(				JUMP_FALSE, noTrapError);
+	LOAD(				optionsVar);
+	PUSH(				"-during");
+	OP4(				REVERSE, 3);
+	STORE(				optionsVar);
+	OP(				POP);
+	OP44(				DICT_SET, 1, optionsVar);
+	TclAdjustStackDepth(-1, envPtr);
+	JUMP1(				JUMP, trapError);
+	FIXJUMP1(		noTrapError);
+	STORE(				optionsVar);
+	FIXJUMP1(		trapError);
+	/* Skip POP at end; can clean up with subsequent POP */
+	if (i+1 < numHandlers) {
+	    OP(				POP);
+	}
+
+    endOfThisArm:
+	if (i+1 < numHandlers) {
+	    JUMP4(			JUMP, addrsToFix[i]);
+	    TclAdjustStackDepth(1, envPtr);
 	}
-	TclStackFree(interp, forwardsToFix);
-	TclStackFree(interp, addrsToFix);
+	if (matchClauses[i]) {
+	    FIXJUMP4(		notECJumpSource);
+	}
+	FIXJUMP4(		notCodeJumpSource);
     }
 
     /*
-     * Drop the result code.
+     * Drop the result code, and fix all the jumps from taken clauses - which
+     * drop the result code as their first action - to point straight after
+     * (i.e., to the start of the finally clause).
      */
 
     OP(					POP);
-    envPtr->currStackDepth = savedStackDepth;
+    for (i=0 ; i<numHandlers-1 ; i++) {
+	FIXJUMP4(		addrsToFix[i]);
+    }
+    TclStackFree(interp, forwardsToFix);
+    TclStackFree(interp, addrsToFix);
 
     /*
      * Process the finally clause (at last!) Note that we do not wrap this in
@@ -2462,14 +3399,106 @@ IssueTryFinallyInstructions(
      * next command (or some inter-command manipulation).
      */
 
+    if (!trapZero) {
+	FIXJUMP4(		afterBody);
+    }
+    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
+    OP4(				BEGIN_CATCH4, range);
+    ExceptionRangeStarts(envPtr, range);
     BODY(				finallyToken, 3 + 4*numHandlers);
+    ExceptionRangeEnds(envPtr, range);
+    OP(					END_CATCH);
     OP(					POP);
+    JUMP1(				JUMP, finalOK);
+    ExceptionRangeTarget(envPtr, range, catchOffset);
+    OP(					PUSH_RESULT);
+    OP(					PUSH_RETURN_OPTIONS);
+    OP(					PUSH_RETURN_CODE);
+    OP(					END_CATCH);
+    PUSH(				"1");
+    OP(					EQ);
+    JUMP1(				JUMP_FALSE, noFinalError);
+    LOAD(				optionsVar);
+    PUSH(				"-during");
+    OP4(				REVERSE, 3);
+    STORE(				optionsVar);
+    OP(					POP);
+    OP44(				DICT_SET, 1, optionsVar);
+    TclAdjustStackDepth(-1, envPtr);
+    OP(					POP);
+    JUMP1(				JUMP, finalError);
+    TclAdjustStackDepth(1, envPtr);
+    FIXJUMP1(			noFinalError);
+    STORE(				optionsVar);
+    OP(					POP);
+    FIXJUMP1(			finalError);
+    STORE(				resultVar);
+    OP(					POP);
+    FIXJUMP1(			finalOK);
     LOAD(				optionsVar);
     LOAD(				resultVar);
-    OP(					RETURN_STK);
+    INVOKE(				RETURN_STK);
 
     return TCL_OK;
 }
+
+static int
+IssueTryFinallyInstructions(
+    Tcl_Interp *interp,
+    CompileEnv *envPtr,
+    Tcl_Token *bodyToken,
+    Tcl_Token *finallyToken)
+{
+    DefineLineInformation;	/* TIP #280 */
+    int range, jumpOK, jumpSplice;
+
+    /*
+     * Note that this one is simple enough that we can issue it without
+     * needing a local variable table, making it a universal compilation.
+     */
+
+    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
+    OP4(				BEGIN_CATCH4, range);
+    ExceptionRangeStarts(envPtr, range);
+    BODY(				bodyToken, 1);
+    ExceptionRangeEnds(envPtr, range);
+    OP1(				JUMP1, 3);
+    TclAdjustStackDepth(-1, envPtr);
+    ExceptionRangeTarget(envPtr, range, catchOffset);
+    OP(					PUSH_RESULT);
+    OP(					PUSH_RETURN_OPTIONS);
+    OP(					END_CATCH);
+
+    range = TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
+    OP4(				BEGIN_CATCH4, range);
+    ExceptionRangeStarts(envPtr, range);
+    BODY(				finallyToken, 3);
+    ExceptionRangeEnds(envPtr, range);
+    OP(					END_CATCH);
+    OP(					POP);
+    JUMP1(				JUMP, jumpOK);
+    ExceptionRangeTarget(envPtr, range, catchOffset);
+    OP(					PUSH_RESULT);
+    OP(					PUSH_RETURN_OPTIONS);
+    OP(					PUSH_RETURN_CODE);
+    OP(					END_CATCH);
+    PUSH(				"1");
+    OP(					EQ);
+    JUMP1(				JUMP_FALSE, jumpSplice);
+    PUSH(				"-during");
+    OP4(				OVER, 3);
+    OP4(				LIST, 2);
+    OP(					LIST_CONCAT);
+    FIXJUMP1(		jumpSplice);
+    OP4(				REVERSE, 4);
+    OP(					POP);
+    OP(					POP);
+    OP1(				JUMP1, 7);
+    FIXJUMP1(		jumpOK);
+    OP4(				REVERSE, 2);
+    INVOKE(				RETURN_STK);
+    return TCL_OK;
+}
 
 /*
  *----------------------------------------------------------------------
@@ -2499,38 +3528,81 @@ TclCompileUnsetCmd(
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
     Tcl_Token *varTokenPtr;
-    int isScalar, simpleVarName, localIndex, numWords, flags, i;
-    Tcl_Obj *leadingWord;
+    int isScalar, localIndex, flags = 1, i, varCount = 0, haveFlags = 0;
     DefineLineInformation;	/* TIP #280 */
 
-    numWords = parsePtr->numWords-1;
-    flags = 1;
-    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
-    leadingWord = Tcl_NewObj();
-    if (TclWordKnownAtCompileTime(varTokenPtr, leadingWord)) {
-	int len;
-	const char *bytes = Tcl_GetStringFromObj(leadingWord, &len);
+    /* TODO: Consider support for compiling expanded args. */
 
-	if (len == 11 && !strncmp("-nocomplain", bytes, 11)) {
-	    flags = 0;
-	    varTokenPtr = TokenAfter(varTokenPtr);
-	    numWords--;
-	} else if (len == 2 && !strncmp("--", bytes, 2)) {
-	    varTokenPtr = TokenAfter(varTokenPtr);
-	    numWords--;
-	}
-    } else {
-	/*
-	 * Cannot guarantee that the first word is not '-nocomplain' at
-	 * evaluation with reasonable effort, so spill to interpreted version.
-	 */
+    /*
+     * Verify that all words - except the first non-option one - are known at
+     * compile time so that we can handle them without needing to do a nasty
+     * push/rotate. [Bug 3970f54c4e]
+     */
+
+    for (i=1,varTokenPtr=parsePtr->tokenPtr ; i<parsePtr->numWords ; i++) {
+	Tcl_Obj *leadingWord = Tcl_NewObj();
+
+	varTokenPtr = TokenAfter(varTokenPtr);
+	if (!TclWordKnownAtCompileTime(varTokenPtr, leadingWord)) {
+	    TclDecrRefCount(leadingWord);
+
+	    /*
+	     * We can tolerate non-trivial substitutions in the first variable
+	     * to be unset. If a '--' or '-nocomplain' was present, anything
+	     * goes in that one place! (All subsequent variable names must be
+	     * constants since we don't want to have to push them all first.)
+	     */
 
+	    if (varCount == 0) {
+		if (haveFlags) {
+		    continue;
+		}
+
+		/*
+		 * In fact, we're OK as long as we're the first argument *and*
+		 * we provably don't start with a '-'. If that is true, then
+		 * even if everything else is varying, we still can't be a
+		 * flag. Otherwise we'll spill to runtime to place a limit on
+		 * the trickiness.
+		 */
+
+		if (varTokenPtr->type == TCL_TOKEN_WORD
+			&& varTokenPtr[1].type == TCL_TOKEN_TEXT
+			&& varTokenPtr[1].size > 0
+			&& varTokenPtr[1].start[0] != '-') {
+		    continue;
+		}
+	    }
+	    return TCL_ERROR;
+	}
+	if (i == 1) {
+	    const char *bytes;
+	    int len;
+
+	    bytes = Tcl_GetStringFromObj(leadingWord, &len);
+	    if (len == 11 && !strncmp("-nocomplain", bytes, 11)) {
+		flags = 0;
+		haveFlags = 1;
+	    } else if (len == 2 && !strncmp("--", bytes, 2)) {
+		haveFlags = 1;
+	    } else {
+		varCount++;
+	    }
+	} else {
+	    varCount++;
+	}
 	TclDecrRefCount(leadingWord);
-	return TCL_ERROR;
     }
-    TclDecrRefCount(leadingWord);
 
-    for (i=0 ; i<numWords ; i++) {
+    /*
+     * Issue instructions to unset each of the named variables.
+     */
+
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    if (haveFlags) {
+	varTokenPtr = TokenAfter(varTokenPtr);
+    }
+    for (i=1+haveFlags ; i<parsePtr->numWords ; i++) {
 	/*
 	 * Decide if we can use a frame slot for the var/array name or if we
 	 * need to emit code to compute and push the name at runtime. We use a
@@ -2540,33 +3612,29 @@ TclCompileUnsetCmd(
 	 */
 
 	PushVarNameWord(interp, varTokenPtr, envPtr, 0,
-		&localIndex, &simpleVarName, &isScalar, 1);
+		&localIndex, &isScalar, i);
 
 	/*
 	 * Emit instructions to unset the variable.
 	 */
 
-	if (!simpleVarName) {
-	    TclEmitInstInt1(	INST_UNSET_STK, flags,		envPtr);
-	} else if (isScalar) {
+	if (isScalar) {
 	    if (localIndex < 0) {
-		TclEmitInstInt1(INST_UNSET_STK, flags,		envPtr);
+		OP1(	UNSET_STK, flags);
 	    } else {
-		TclEmitInstInt1(INST_UNSET_SCALAR, flags,	envPtr);
-		TclEmitInt4(			   localIndex,	envPtr);
+		OP14(	UNSET_SCALAR, flags, localIndex);
 	    }
 	} else {
 	    if (localIndex < 0) {
-		TclEmitInstInt1(INST_UNSET_ARRAY_STK, flags,	envPtr);
+		OP1(	UNSET_ARRAY_STK, flags);
 	    } else {
-		TclEmitInstInt1(INST_UNSET_ARRAY, flags,	envPtr);
-		TclEmitInt4(			  localIndex,	envPtr);
+		OP14(	UNSET_ARRAY, flags, localIndex);
 	    }
 	}
 
 	varTokenPtr = TokenAfter(varTokenPtr);
     }
-    PushLiteral(envPtr, "", 0);
+    PUSH("");
     return TCL_OK;
 }
 
@@ -2600,7 +3668,6 @@ TclCompileWhileCmd(
     Tcl_Token *testTokenPtr, *bodyTokenPtr;
     JumpFixup jumpEvalCondFixup;
     int testCodeOffset, bodyCodeOffset, jumpDist, range, code, boolVal;
-    int savedStackDepth = envPtr->currStackDepth;
     int loopMayEnd = 1;		/* This is set to 0 if it is recognized as an
 				 * infinite loop. */
     Tcl_Obj *boolObj;
@@ -2658,7 +3725,7 @@ TclCompileWhileCmd(
      * implement break and continue.
      */
 
-    range = DeclareExceptionRange(envPtr, LOOP_EXCEPTION_RANGE);
+    range = TclCreateExceptRange(LOOP_EXCEPTION_RANGE, envPtr);
 
     /*
      * Jump to the evaluation of the condition. This code uses the "loop
@@ -2684,7 +3751,7 @@ TclCompileWhileCmd(
 	 * INST_START_CMD, and hence counted properly. [Bug 1752146]
 	 */
 
-	envPtr->atCmdStart = 0;
+	envPtr->atCmdStart &= ~1;
 	testCodeOffset = CurrentOffset(envPtr);
     }
 
@@ -2692,12 +3759,14 @@ TclCompileWhileCmd(
      * Compile the loop body.
      */
 
-    SetLineInformation(2);
     bodyCodeOffset = ExceptionRangeStarts(envPtr, range);
-    CompileBody(envPtr, bodyTokenPtr, interp);
+    if (!loopMayEnd) {
+	envPtr->exceptArrayPtr[range].continueOffset = testCodeOffset;
+	envPtr->exceptArrayPtr[range].codeOffset = bodyCodeOffset;
+    }
+    BODY(bodyTokenPtr, 2);
     ExceptionRangeEnds(envPtr, range);
-    envPtr->currStackDepth = savedStackDepth + 1;
-    TclEmitOpcode(INST_POP, envPtr);
+    OP(		POP);
 
     /*
      * Compile the test expression then emit the conditional jump that
@@ -2711,10 +3780,8 @@ TclCompileWhileCmd(
 	    bodyCodeOffset += 3;
 	    testCodeOffset += 3;
 	}
-	envPtr->currStackDepth = savedStackDepth;
 	SetLineInformation(1);
 	TclCompileExprWords(interp, testTokenPtr, 1, envPtr);
-	envPtr->currStackDepth = savedStackDepth + 1;
 
 	jumpDist = CurrentOffset(envPtr) - bodyCodeOffset;
 	if (jumpDist > 127) {
@@ -2738,254 +3805,102 @@ TclCompileWhileCmd(
     envPtr->exceptArrayPtr[range].continueOffset = testCodeOffset;
     envPtr->exceptArrayPtr[range].codeOffset = bodyCodeOffset;
     ExceptionRangeTarget(envPtr, range, breakOffset);
+    TclFinalizeLoopExceptionRange(envPtr, range);
 
     /*
      * The while command's result is an empty string.
      */
 
   pushResult:
-    envPtr->currStackDepth = savedStackDepth;
-    PushLiteral(envPtr, "", 0);
+    PUSH("");
     return TCL_OK;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * PushVarName --
+ * TclCompileYieldCmd --
  *
- *	Procedure used in the compiling where pushing a variable name is
- *	necessary (append, lappend, set).
+ *	Procedure called to compile the "yield" command.
  *
  * Results:
  *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
  *	evaluation to runtime.
  *
  * Side effects:
- *	Instructions are added to envPtr to execute the "set" command at
+ *	Instructions are added to envPtr to execute the "yield" command at
  *	runtime.
  *
  *----------------------------------------------------------------------
  */
 
-static int
-PushVarName(
+int
+TclCompileYieldCmd(
     Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Token *varTokenPtr,	/* Points to a variable token. */
-    CompileEnv *envPtr,		/* Holds resulting instructions. */
-    int flags,			/* TCL_NO_LARGE_INDEX. */
-    int *localIndexPtr,		/* Must not be NULL. */
-    int *simpleVarNamePtr,	/* Must not be NULL. */
-    int *isScalarPtr,		/* Must not be NULL. */
-    int line,			/* Line the token starts on. */
-    int *clNext)		/* Reference to offset of next hidden cont.
-				 * line. */
-{
-    register const char *p;
-    const char *name, *elName;
-    register int i, n;
-    Tcl_Token *elemTokenPtr = NULL;
-    int nameChars, elNameChars, simpleVarName, localIndex;
-    int elemTokenCount = 0, allocedTokens = 0, removedParen = 0;
-
-    /*
-     * Decide if we can use a frame slot for the var/array name or if we need
-     * to emit code to compute and push the name at runtime. We use a frame
-     * slot (entry in the array of local vars) if we are compiling a procedure
-     * body and if the name is simple text that does not include namespace
-     * qualifiers.
-     */
-
-    simpleVarName = 0;
-    name = elName = NULL;
-    nameChars = elNameChars = 0;
-    localIndex = -1;
-
-    /*
-     * Check not only that the type is TCL_TOKEN_SIMPLE_WORD, but whether
-     * curly braces surround the variable name. This really matters for array
-     * elements to handle things like
-     *    set {x($foo)} 5
-     * which raises an undefined var error if we are not careful here.
-     */
-
-    if ((varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) &&
-	    (varTokenPtr->start[0] != '{')) {
-	/*
-	 * A simple variable name. Divide it up into "name" and "elName"
-	 * strings. If it is not a local variable, look it up at runtime.
-	 */
-
-	simpleVarName = 1;
-
-	name = varTokenPtr[1].start;
-	nameChars = varTokenPtr[1].size;
-	if (name[nameChars-1] == ')') {
-	    /*
-	     * last char is ')' => potential array reference.
-	     */
-
-	    for (i=0,p=name ; i<nameChars ; i++,p++) {
-		if (*p == '(') {
-		    elName = p + 1;
-		    elNameChars = nameChars - i - 2;
-		    nameChars = i;
-		    break;
-		}
-	    }
-
-	    if ((elName != NULL) && elNameChars) {
-		/*
-		 * An array element, the element name is a simple string:
-		 * assemble the corresponding token.
-		 */
-
-		elemTokenPtr = TclStackAlloc(interp, sizeof(Tcl_Token));
-		allocedTokens = 1;
-		elemTokenPtr->type = TCL_TOKEN_TEXT;
-		elemTokenPtr->start = elName;
-		elemTokenPtr->size = elNameChars;
-		elemTokenPtr->numComponents = 0;
-		elemTokenCount = 1;
-	    }
-	}
-    } else if (((n = varTokenPtr->numComponents) > 1)
-	    && (varTokenPtr[1].type == TCL_TOKEN_TEXT)
-	    && (varTokenPtr[n].type == TCL_TOKEN_TEXT)
-	    && (varTokenPtr[n].start[varTokenPtr[n].size - 1] == ')')) {
-	/*
-	 * Check for parentheses inside first token.
-	 */
-
-	simpleVarName = 0;
-	for (i = 0, p = varTokenPtr[1].start;
-		i < varTokenPtr[1].size; i++, p++) {
-	    if (*p == '(') {
-		simpleVarName = 1;
-		break;
-	    }
-	}
-	if (simpleVarName) {
-	    int remainingChars;
-
-	    /*
-	     * Check the last token: if it is just ')', do not count it.
-	     * Otherwise, remove the ')' and flag so that it is restored at
-	     * the end.
-	     */
-
-	    if (varTokenPtr[n].size == 1) {
-		n--;
-	    } else {
-		varTokenPtr[n].size--;
-		removedParen = n;
-	    }
-
-	    name = varTokenPtr[1].start;
-	    nameChars = p - varTokenPtr[1].start;
-	    elName = p + 1;
-	    remainingChars = (varTokenPtr[2].start - p) - 1;
-	    elNameChars = (varTokenPtr[n].start-p) + varTokenPtr[n].size - 2;
-
-	    if (remainingChars) {
-		/*
-		 * Make a first token with the extra characters in the first
-		 * token.
-		 */
-
-		elemTokenPtr = TclStackAlloc(interp, n * sizeof(Tcl_Token));
-		allocedTokens = 1;
-		elemTokenPtr->type = TCL_TOKEN_TEXT;
-		elemTokenPtr->start = elName;
-		elemTokenPtr->size = remainingChars;
-		elemTokenPtr->numComponents = 0;
-		elemTokenCount = n;
-
-		/*
-		 * Copy the remaining tokens.
-		 */
-
-		memcpy(elemTokenPtr+1, varTokenPtr+2,
-			(n-1) * sizeof(Tcl_Token));
-	    } else {
-		/*
-		 * Use the already available tokens.
-		 */
-
-		elemTokenPtr = &varTokenPtr[2];
-		elemTokenCount = n - 1;
-	    }
-	}
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    if (parsePtr->numWords < 1 || parsePtr->numWords > 2) {
+	return TCL_ERROR;
     }
 
-    if (simpleVarName) {
-	/*
-	 * See whether name has any namespace separators (::'s).
-	 */
-
-	int hasNsQualifiers = 0;
-
-	for (i = 0, p = name;  i < nameChars;  i++, p++) {
-	    if ((*p == ':') && ((i+1) < nameChars) && (*(p+1) == ':')) {
-		hasNsQualifiers = 1;
-		break;
-	    }
-	}
-
-	/*
-	 * Look up the var name's index in the array of local vars in the proc
-	 * frame. If retrieving the var's value and it doesn't already exist,
-	 * push its name and look it up at runtime.
-	 */
-
-	if (!hasNsQualifiers) {
-	    localIndex = TclFindCompiledLocal(name, nameChars,
-		    1, envPtr);
-	    if ((flags & TCL_NO_LARGE_INDEX) && (localIndex > 255)) {
-		/*
-		 * We'll push the name.
-		 */
-
-		localIndex = -1;
-	    }
-	}
-	if (localIndex < 0) {
-	    PushLiteral(envPtr, name, nameChars);
-	}
-
-	/*
-	 * Compile the element script, if any.
-	 */
-
-	if (elName != NULL) {
-	    if (elNameChars) {
-		envPtr->line = line;
-		envPtr->clNext = clNext;
-		TclCompileTokens(interp, elemTokenPtr, elemTokenCount,
-			envPtr);
-	    } else {
-		PushLiteral(envPtr, "", 0);
-	    }
-	}
+    if (parsePtr->numWords == 1) {
+	PUSH("");
     } else {
-	/*
-	 * The var name isn't simple: compile and push it.
-	 */
+	DefineLineInformation;	/* TIP #280 */
+	Tcl_Token *valueTokenPtr = TokenAfter(parsePtr->tokenPtr);
 
-	envPtr->line = line;
-	envPtr->clNext = clNext;
-	CompileTokens(envPtr, varTokenPtr, interp);
+	CompileWord(envPtr, valueTokenPtr, interp, 1);
     }
+    OP(		YIELD);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclCompileYieldToCmd --
+ *
+ *	Procedure called to compile the "yieldto" command.
+ *
+ * Results:
+ *	Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ *	evaluation to runtime.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "yieldto" command at
+ *	runtime.
+ *
+ *----------------------------------------------------------------------
+ */
 
-    if (removedParen) {
-	varTokenPtr[removedParen].size++;
+int
+TclCompileYieldToCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    DefineLineInformation;	/* TIP #280 */
+    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    int i;
+
+    if (parsePtr->numWords < 2) {
+	return TCL_ERROR;
     }
-    if (allocedTokens) {
-	TclStackFree(interp, elemTokenPtr);
+
+    OP(		NS_CURRENT);
+    for (i = 1 ; i < parsePtr->numWords ; i++) {
+	CompileWord(envPtr, tokenPtr, interp, i);
+	tokenPtr = TokenAfter(tokenPtr);
     }
-    *localIndexPtr = localIndex;
-    *simpleVarNamePtr = simpleVarName;
-    *isScalarPtr = (elName == NULL);
+    OP4(	LIST, i);
+    OP(		YIELD_TO_INVOKE);
     return TCL_OK;
 }
 
@@ -3060,6 +3975,7 @@ CompileAssociativeBinaryOpCmd(
     DefineLineInformation;	/* TIP #280 */
     int words;
 
+    /* TODO: Consider support for compiling expanded args. */
     for (words=1 ; words<parsePtr->numWords ; words++) {
 	tokenPtr = TokenAfter(tokenPtr);
 	CompileWord(envPtr, tokenPtr, interp, words);
@@ -3074,7 +3990,7 @@ CompileAssociativeBinaryOpCmd(
 	 * calcuations, including roundoff errors.
 	 */
 
-	TclEmitInstInt4(INST_REVERSE, words-1, envPtr);
+	OP4(	REVERSE, words-1);
     }
     while (--words > 1) {
 	TclEmitOpcode(instruction, envPtr);
@@ -3143,8 +4059,9 @@ CompileComparisonOpCmd(
     Tcl_Token *tokenPtr;
     DefineLineInformation;	/* TIP #280 */
 
+    /* TODO: Consider support for compiling expanded args. */
     if (parsePtr->numWords < 3) {
-	PushLiteral(envPtr, "1", 1);
+	PUSH("1");
     } else if (parsePtr->numWords == 3) {
 	tokenPtr = TokenAfter(parsePtr->tokenPtr);
 	CompileWord(envPtr, tokenPtr, interp, 1);
@@ -3158,38 +4075,26 @@ CompileComparisonOpCmd(
 
 	return TCL_ERROR;
     } else {
-	int tmpIndex = TclFindCompiledLocal(NULL, 0, 1, envPtr);
+	int tmpIndex = AnonymousLocal(envPtr);
 	int words;
 
 	tokenPtr = TokenAfter(parsePtr->tokenPtr);
 	CompileWord(envPtr, tokenPtr, interp, 1);
 	tokenPtr = TokenAfter(tokenPtr);
 	CompileWord(envPtr, tokenPtr, interp, 2);
-	if (tmpIndex <= 255) {
-	    TclEmitInstInt1(INST_STORE_SCALAR1, tmpIndex, envPtr);
-	} else {
-	    TclEmitInstInt4(INST_STORE_SCALAR4, tmpIndex, envPtr);
-	}
+	STORE(tmpIndex);
 	TclEmitOpcode(instruction, envPtr);
 	for (words=3 ; words<parsePtr->numWords ;) {
-	    if (tmpIndex <= 255) {
-		TclEmitInstInt1(INST_LOAD_SCALAR1, tmpIndex, envPtr);
-	    } else {
-		TclEmitInstInt4(INST_LOAD_SCALAR4, tmpIndex, envPtr);
-	    }
+	    LOAD(tmpIndex);
 	    tokenPtr = TokenAfter(tokenPtr);
 	    CompileWord(envPtr, tokenPtr, interp, words);
 	    if (++words < parsePtr->numWords) {
-		if (tmpIndex <= 255) {
-		    TclEmitInstInt1(INST_STORE_SCALAR1, tmpIndex, envPtr);
-		} else {
-		    TclEmitInstInt4(INST_STORE_SCALAR4, tmpIndex, envPtr);
-		}
+		STORE(tmpIndex);
 	    }
 	    TclEmitOpcode(instruction, envPtr);
 	}
 	for (; words>3 ; words--) {
-	    TclEmitOpcode(INST_BITAND, envPtr);
+	    OP(	BITAND);
 	}
 
 	/*
@@ -3197,13 +4102,7 @@ CompileComparisonOpCmd(
 	 * might be expensive elsewhere.
 	 */
 
-	PushLiteral(envPtr, "", 0);
-	if (tmpIndex <= 255) {
-	    TclEmitInstInt1(INST_STORE_SCALAR1, tmpIndex, envPtr);
-	} else {
-	    TclEmitInstInt4(INST_STORE_SCALAR4, tmpIndex, envPtr);
-	}
-	TclEmitOpcode(INST_POP, envPtr);
+	OP14(	UNSET_SCALAR, 0, tmpIndex);
     }
     return TCL_OK;
 }
@@ -3333,7 +4232,7 @@ TclCompilePowOpCmd(
 	CompileWord(envPtr, tokenPtr, interp, words);
     }
     if (parsePtr->numWords <= 2) {
-	PushLiteral(envPtr, "1", 1);
+	PUSH("1");
 	words++;
     }
     while (--words > 1) {
@@ -3498,6 +4397,7 @@ TclCompileMinusOpCmd(
     DefineLineInformation;	/* TIP #280 */
     int words;
 
+    /* TODO: Consider support for compiling expanded args. */
     if (parsePtr->numWords == 1) {
 	/*
 	 * Fallback to direct eval to report syntax error.
@@ -3543,6 +4443,7 @@ TclCompileDivOpCmd(
     DefineLineInformation;	/* TIP #280 */
     int words;
 
+    /* TODO: Consider support for compiling expanded args. */
     if (parsePtr->numWords == 1) {
 	/*
 	 * Fallback to direct eval to report syntax error.
@@ -3551,7 +4452,7 @@ TclCompileDivOpCmd(
 	return TCL_ERROR;
     }
     if (parsePtr->numWords == 2) {
-	PushLiteral(envPtr, "1.0", 3);
+	PUSH("1.0");
     }
     for (words=1 ; words<parsePtr->numWords ; words++) {
 	tokenPtr = TokenAfter(tokenPtr);
diff --git a/generic/tclCompExpr.c b/generic/tclCompExpr.c
index 890d518..38c1ceb 100644
--- a/generic/tclCompExpr.c
+++ b/generic/tclCompExpr.c
@@ -365,7 +365,7 @@ static const unsigned char prec[] = {
     0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
-    0,  
+    0,
     /* Unary operator lexemes */
     PREC_UNARY,		/* UNARY_PLUS */
     PREC_UNARY,		/* UNARY_MINUS */
@@ -420,7 +420,7 @@ static const unsigned char instruction[] = {
     0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
-    0,  
+    0,
     /* Unary operator lexemes */
     INST_UPLUS,		/* UNARY_PLUS */
     INST_UMINUS,	/* UNARY_MINUS */
@@ -488,15 +488,8 @@ static const unsigned char Lexeme[] = {
 
 typedef struct JumpList {
     JumpFixup jump;		/* Pass this argument to matching calls of
-				 * TclEmitForwardJump() and 
+				 * TclEmitForwardJump() and
 				 * TclFixupForwardJump(). */
-    int depth;			/* Remember the currStackDepth of the
-				 * CompileEnv here. */
-    int offset;			/* Data used to compute jump lengths to pass
-				 * to TclFixupForwardJump() */
-    int convert;		/* Temporary storage used to compute whether
-				 * numeric conversion will be needed following
-				 * the operator we're compiling. */
     struct JumpList *next;	/* Point to next item on the stack */
 } JumpList;
 
@@ -845,7 +838,7 @@ ParseExpr(
 
 	    switch (lexeme) {
 	    case NUMBER:
-	    case BOOLEAN: 
+	    case BOOLEAN:
 		/*
 		 * TODO: Consider using a dict or hash to collapse all
 		 * duplicate literals into a single representative value.
@@ -868,7 +861,7 @@ ParseExpr(
 		start += scanned;
 		numBytes -= scanned;
 		continue;
-	    
+
 	    default:
 		break;
 	    }
@@ -1331,7 +1324,7 @@ ParseExpr(
 	    nodePtr->mark = MARK_LEFT;
 	    nodePtr->left = complete;
 
-	    /* 
+	    /*
 	     * The COMMA operator cannot be optimized, since the function
 	     * needs all of its arguments, and optimization would reduce the
 	     * number. Other binary operators root constant expressions when
@@ -1553,7 +1546,7 @@ ConvertTreeToTokens(
 	     * Tcl_ParseExpr() we do not change them now. Internally, we can
 	     * do better.
 	     */
-	
+
 	    int toCopy = tokenPtr->numComponents + 1;
 
 	    if (tokenPtr->numComponents == tokenPtr[1].numComponents + 1) {
@@ -1569,7 +1562,7 @@ ConvertTreeToTokens(
 		subExprTokenPtr->type = TCL_TOKEN_SUB_EXPR;
 		parsePtr->numTokens += toCopy;
 	    } else {
-		/* 
+		/*
 		 * Multiple element word. Create a TCL_TOKEN_SUB_EXPR token to
 		 * lead, with fields initialized from the leading token, then
 		 * copy entire set of word tokens.
@@ -1618,7 +1611,7 @@ ConvertTreeToTokens(
 	    case COMMA:
 	    case COLON:
 
-		/* 
+		/*
 		 * Historical practice has been to have no Tcl_Tokens for
 		 * these operators.
 		 */
@@ -1754,7 +1747,7 @@ ConvertTreeToTokens(
 		/*
 		 * Before we leave this node/operator/subexpression for the
 		 * last time, finish up its tokens....
-		 * 
+		 *
 		 * Our current position scanning the string is where the
 		 * substring for the subexpression ends.
 		 */
@@ -1974,7 +1967,7 @@ ParseLexeme(
 
     case 'i':
 	if ((numBytes > 1) && (start[1] == 'n')
-		&& ((numBytes == 2) || !isalpha(UCHAR(start[2])))) {
+		&& ((numBytes == 2) || start[2] & 0x80 || !isalpha(UCHAR(start[2])))) {
 	    /*
 	     * Must make this check so we can tell the difference between the
 	     * "in" operator and the "int" function name and the "infinity"
@@ -1988,14 +1981,15 @@ ParseLexeme(
 
     case 'e':
 	if ((numBytes > 1) && (start[1] == 'q')
-		&& ((numBytes == 2) || !isalpha(UCHAR(start[2])))) {
+		&& ((numBytes == 2) || start[2] & 0x80 || !isalpha(UCHAR(start[2])))) {
 	    *lexemePtr = STREQ;
 	    return 2;
 	}
 	break;
 
     case 'n':
-	if ((numBytes > 1) && ((numBytes == 2) || !isalpha(UCHAR(start[2])))) {
+	if ((numBytes > 1)
+		&& ((numBytes == 2) || start[2] & 0x80 || !isalpha(UCHAR(start[2])))) {
 	    switch (start[1]) {
 	    case 'e':
 		*lexemePtr = STRNEQ;
@@ -2010,9 +2004,8 @@ ParseLexeme(
     literal = Tcl_NewObj();
     if (TclParseNumber(NULL, literal, NULL, start, numBytes, &end,
 	    TCL_PARSE_NO_WHITESPACE) == TCL_OK) {
-	if (end < start + numBytes && !isalnum(UCHAR(*end))
-		&& UCHAR(*end) != '_') {
-	
+	if (end < start + numBytes && !TclIsBareword(*end)) {
+
 	number:
 	    TclInitStringRep(literal, start, end-start);
 	    *lexemePtr = NUMBER;
@@ -2036,9 +2029,9 @@ ParseLexeme(
 		const char *p = start;
 
 		while (p < end) {
-		    if (!isalnum(UCHAR(*p++))) {
+		    if (!TclIsBareword(*p++)) {
 			/*
-			 * The number has non-bareword characters, so we 
+			 * The number has non-bareword characters, so we
 			 * must treat it as a number.
 			 */
 			goto number;
@@ -2061,33 +2054,30 @@ ParseLexeme(
 	}
     }
 
-    if (Tcl_UtfCharComplete(start, numBytes)) {
-	scanned = Tcl_UtfToUniChar(start, &ch);
-    } else {
-	char utfBytes[TCL_UTF_MAX];
+    /*
+     * We reject leading underscores in bareword.  No sensible reason why.
+     * Might be inspired by reserved identifier rules in C, which of course
+     * have no direct relevance here.
+     */
 
-	memcpy(utfBytes, start, (size_t) numBytes);
-	utfBytes[numBytes] = '\0';
-	scanned = Tcl_UtfToUniChar(utfBytes, &ch);
-    }
-    if (!isalnum(UCHAR(ch))) {
-	*lexemePtr = INVALID;
-	Tcl_DecrRefCount(literal);
-	return scanned;
-    }
-    end = start;
-    while (isalnum(UCHAR(ch)) || (UCHAR(ch) == '_')) {
-	end += scanned;
-	numBytes -= scanned;
-	if (Tcl_UtfCharComplete(end, numBytes)) {
-	    scanned = Tcl_UtfToUniChar(end, &ch);
+    if (!TclIsBareword(*start) || *start == '_') {
+	if (Tcl_UtfCharComplete(start, numBytes)) {
+	    scanned = Tcl_UtfToUniChar(start, &ch);
 	} else {
 	    char utfBytes[TCL_UTF_MAX];
 
-	    memcpy(utfBytes, end, (size_t) numBytes);
+	    memcpy(utfBytes, start, (size_t) numBytes);
 	    utfBytes[numBytes] = '\0';
 	    scanned = Tcl_UtfToUniChar(utfBytes, &ch);
 	}
+	*lexemePtr = INVALID;
+	Tcl_DecrRefCount(literal);
+	return scanned;
+    }
+    end = start;
+    while (numBytes && TclIsBareword(*end)) {
+	end += 1;
+	numBytes -= 1;
     }
     *lexemePtr = BAREWORD;
     if (literalPtr) {
@@ -2105,7 +2095,7 @@ ParseLexeme(
  * TclCompileExpr --
  *
  *	This procedure compiles a string containing a Tcl expression into Tcl
- *	bytecodes. 
+ *	bytecodes.
  *
  * Results:
  *	None.
@@ -2207,7 +2197,7 @@ ExecConstantExprTree(
     TclInitByteCodeObj(byteCodeObj, envPtr);
     TclFreeCompileEnv(envPtr);
     TclStackFree(interp, envPtr);
-    byteCodePtr = byteCodeObj->internalRep.otherValuePtr;
+    byteCodePtr = byteCodeObj->internalRep.twoPtrValue.ptr1;
     TclNRExecuteByteCode(interp, byteCodePtr);
     code = TclNRRunCallbacks(interp, TCL_OK, rootPtr);
     Tcl_DecrRefCount(byteCodeObj);
@@ -2261,30 +2251,8 @@ CompileExprTree(
 	if (nodePtr->mark == MARK_LEFT) {
 	    next = nodePtr->left;
 
-	    switch (nodePtr->lexeme) {
-	    case QUESTION:
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		jumpPtr->depth = envPtr->currStackDepth;
+	    if (nodePtr->lexeme == QUESTION) {
 		convert = 1;
-		break;
-	    case AND:
-	    case OR:
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		jumpPtr->depth = envPtr->currStackDepth;
-		break;
 	    }
 	} else if (nodePtr->mark == MARK_RIGHT) {
 	    next = nodePtr->right;
@@ -2317,25 +2285,35 @@ CompileExprTree(
 		break;
 	    }
 	    case QUESTION:
+		newJump = TclStackAlloc(interp, sizeof(JumpList));
+		newJump->next = jumpPtr;
+		jumpPtr = newJump;
 		TclEmitForwardJump(envPtr, TCL_FALSE_JUMP, &jumpPtr->jump);
 		break;
 	    case COLON:
-		CLANG_ASSERT(jumpPtr);
+		newJump = TclStackAlloc(interp, sizeof(JumpList));
+		newJump->next = jumpPtr;
+		jumpPtr = newJump;
 		TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP,
-			&jumpPtr->next->jump);
-		envPtr->currStackDepth = jumpPtr->depth;
-		jumpPtr->offset = (envPtr->codeNext - envPtr->codeStart);
-		jumpPtr->convert = convert;
+			&jumpPtr->jump);
+		TclAdjustStackDepth(-1, envPtr);
+		if (convert) {
+		    jumpPtr->jump.jumpType = TCL_TRUE_JUMP;
+		}
 		convert = 1;
 		break;
 	    case AND:
-		TclEmitForwardJump(envPtr, TCL_FALSE_JUMP, &jumpPtr->jump);
-		break;
 	    case OR:
-		TclEmitForwardJump(envPtr, TCL_TRUE_JUMP, &jumpPtr->jump);
+		newJump = TclStackAlloc(interp, sizeof(JumpList));
+		newJump->next = jumpPtr;
+		jumpPtr = newJump;
+		TclEmitForwardJump(envPtr, (nodePtr->lexeme == AND)
+			?  TCL_FALSE_JUMP : TCL_TRUE_JUMP, &jumpPtr->jump);
 		break;
 	    }
 	} else {
+	    int pc1, pc2, target;
+
 	    switch (nodePtr->lexeme) {
 	    case START:
 	    case QUESTION:
@@ -2352,11 +2330,11 @@ CompileExprTree(
 		 * Use the numWords count we've kept to invoke the function
 		 * command with the correct number of arguments.
 		 */
-		
+
 		if (numWords < 255) {
-		    TclEmitInstInt1(INST_INVOKE_STK1, numWords, envPtr);
+		    TclEmitInvoke(envPtr, INST_INVOKE_STK1, numWords);
 		} else {
-		    TclEmitInstInt4(INST_INVOKE_STK4, numWords, envPtr);
+		    TclEmitInvoke(envPtr, INST_INVOKE_STK4, numWords);
 		}
 
 		/*
@@ -2375,18 +2353,20 @@ CompileExprTree(
 		break;
 	    case COLON:
 		CLANG_ASSERT(jumpPtr);
-		if (TclFixupForwardJump(envPtr, &jumpPtr->next->jump,
-			(envPtr->codeNext - envPtr->codeStart)
-			- jumpPtr->next->jump.codeOffset, 127)) {
-		    jumpPtr->offset += 3;
+		if (jumpPtr->jump.jumpType == TCL_TRUE_JUMP) {
+		    jumpPtr->jump.jumpType = TCL_UNCONDITIONAL_JUMP;
+		    convert = 1;
+		}
+		target = jumpPtr->jump.codeOffset + 2;
+		if (TclFixupForwardJumpToHere(envPtr, &jumpPtr->jump, 127)) {
+		    target += 3;
 		}
-		TclFixupForwardJump(envPtr, &jumpPtr->jump,
-			jumpPtr->offset - jumpPtr->jump.codeOffset, 127);
-		convert |= jumpPtr->convert;
-		envPtr->currStackDepth = jumpPtr->depth + 1;
 		freePtr = jumpPtr;
 		jumpPtr = jumpPtr->next;
 		TclStackFree(interp, freePtr);
+		TclFixupForwardJump(envPtr, &jumpPtr->jump,
+			target - jumpPtr->jump.codeOffset, 127);
+
 		freePtr = jumpPtr;
 		jumpPtr = jumpPtr->next;
 		TclStackFree(interp, freePtr);
@@ -2394,29 +2374,24 @@ CompileExprTree(
 	    case AND:
 	    case OR:
 		CLANG_ASSERT(jumpPtr);
-		TclEmitForwardJump(envPtr, (nodePtr->lexeme == AND)
-			?  TCL_FALSE_JUMP : TCL_TRUE_JUMP,
-			&jumpPtr->next->jump);
+		pc1 = CurrentOffset(envPtr);
+		TclEmitInstInt1((nodePtr->lexeme == AND) ? INST_JUMP_FALSE1
+			: INST_JUMP_TRUE1, 0, envPtr);
 		TclEmitPush(TclRegisterNewLiteral(envPtr,
 			(nodePtr->lexeme == AND) ? "1" : "0", 1), envPtr);
-		TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP,
-			&jumpPtr->next->next->jump);
-		TclFixupForwardJumpToHere(envPtr, &jumpPtr->next->jump, 127);
+		pc2 = CurrentOffset(envPtr);
+		TclEmitInstInt1(INST_JUMP1, 0, envPtr);
+		TclAdjustStackDepth(-1, envPtr);
+		TclStoreInt1AtPtr(CurrentOffset(envPtr) - pc1,
+			envPtr->codeStart + pc1 + 1);
 		if (TclFixupForwardJumpToHere(envPtr, &jumpPtr->jump, 127)) {
-		    jumpPtr->next->next->jump.codeOffset += 3;
+		    pc2 += 3;
 		}
 		TclEmitPush(TclRegisterNewLiteral(envPtr,
 			(nodePtr->lexeme == AND) ? "0" : "1", 1), envPtr);
-		TclFixupForwardJumpToHere(envPtr, &jumpPtr->next->next->jump,
-			127);
+		TclStoreInt1AtPtr(CurrentOffset(envPtr) - pc2,
+			envPtr->codeStart + pc2 + 1);
 		convert = 0;
-		envPtr->currStackDepth = jumpPtr->depth + 1;
-		freePtr = jumpPtr;
-		jumpPtr = jumpPtr->next;
-		TclStackFree(interp, freePtr);
-		freePtr = jumpPtr;
-		jumpPtr = jumpPtr->next;
-		TclStackFree(interp, freePtr);
 		freePtr = jumpPtr;
 		jumpPtr = jumpPtr->next;
 		TclStackFree(interp, freePtr);
@@ -2445,14 +2420,11 @@ CompileExprTree(
 	    Tcl_Obj *literal = *litObjv;
 
 	    if (optimize) {
-		int length, index;
+		int length;
 		const char *bytes = TclGetStringFromObj(literal, &length);
-		LiteralEntry *lePtr;
-		Tcl_Obj *objPtr;
+		int index = TclRegisterNewLiteral(envPtr, bytes, length);
+		Tcl_Obj *objPtr = TclFetchLiteral(envPtr, index);
 
-		index = TclRegisterNewLiteral(envPtr, bytes, length);
-		lePtr = envPtr->literalArrayPtr + index;
-		objPtr = lePtr->objPtr;
 		if ((objPtr->typePtr == NULL) && (literal->typePtr != NULL)) {
 		    /*
 		     * Would like to do this:
@@ -2488,8 +2460,7 @@ CompileExprTree(
 	    break;
 	}
 	case OT_TOKENS:
-	    TclCompileTokens(interp, tokenPtr+1, tokenPtr->numComponents,
-		    envPtr);
+	    CompileTokens(envPtr, tokenPtr, interp);
 	    tokenPtr += tokenPtr->numComponents + 1;
 	    break;
 	default:
@@ -2511,7 +2482,7 @@ CompileExprTree(
 
 			index = TclRegisterNewLiteral(envPtr, objPtr->bytes,
 				objPtr->length);
-			tableValue = envPtr->literalArrayPtr[index].objPtr;
+			tableValue = TclFetchLiteral(envPtr, index);
 			if ((tableValue->typePtr == NULL) &&
 				(objPtr->typePtr != NULL)) {
 			    /*
@@ -2596,7 +2567,7 @@ TclSingleOpCmd(
  *
  * TclSortingOpCmd --
  *	Implements the commands:
- *		<, <=, >, >=, ==, eq 
+ *		<, <=, >, >=, ==, eq
  *	in the ::tcl::mathop namespace. These commands are defined for
  *	arbitrary number of arguments by computing the AND of the base
  *	operator applied to all neighbor argument pairs.
diff --git a/generic/tclCompile.c b/generic/tclCompile.c
index d4ca284..0f4dfaf 100644
--- a/generic/tclCompile.c
+++ b/generic/tclCompile.c
@@ -14,6 +14,7 @@
 
 #include "tclInt.h"
 #include "tclCompile.h"
+#include <assert.h>
 
 /*
  * Table of all AuxData types.
@@ -37,7 +38,7 @@ TCL_DECLARE_MUTEX(tableMutex)
 int tclTraceCompile = 0;
 static int traceInitialized = 0;
 #endif
-
+
 /*
  * A table describing the Tcl bytecode instructions. Entries in this table
  * must correspond to the instruction opcode definitions in tclCompile.h. The
@@ -54,15 +55,15 @@ InstructionDesc const tclInstructionTable[] = {
     /* Name	      Bytes stackEffect #Opnds  Operand types */
     {"done",		  1,   -1,         0,	{OPERAND_NONE}},
 	/* Finish ByteCode execution and return stktop (top stack item) */
-    {"push1",		  2,   +1,         1,	{OPERAND_UINT1}},
+    {"push1",		  2,   +1,         1,	{OPERAND_LIT1}},
 	/* Push object at ByteCode objArray[op1] */
-    {"push4",		  5,   +1,         1,	{OPERAND_UINT4}},
+    {"push4",		  5,   +1,         1,	{OPERAND_LIT4}},
 	/* Push object at ByteCode objArray[op4] */
     {"pop",		  1,   -1,         0,	{OPERAND_NONE}},
 	/* Pop the topmost stack object */
     {"dup",		  1,   +1,         0,	{OPERAND_NONE}},
 	/* Duplicate the topmost stack object and push the result */
-    {"concat1",		  2,   INT_MIN,    1,	{OPERAND_UINT1}},
+    {"strcat",		  2,   INT_MIN,    1,	{OPERAND_UINT1}},
 	/* Concatenate the top op1 items and push result */
     {"invokeStk1",	  2,   INT_MIN,    1,	{OPERAND_UINT1}},
 	/* Invoke command named objv[0]; <objc,objv> = <op1,top op1> */
@@ -124,17 +125,17 @@ InstructionDesc const tclInstructionTable[] = {
     {"incrStkImm",	  2,   0,	   1,	{OPERAND_INT1}},
 	/* Incr general variable; unparsed name is top, amount is op1 */
 
-    {"jump1",		  2,   0,          1,	{OPERAND_INT1}},
+    {"jump1",		  2,   0,          1,	{OPERAND_OFFSET1}},
 	/* Jump relative to (pc + op1) */
-    {"jump4",		  5,   0,          1,	{OPERAND_INT4}},
+    {"jump4",		  5,   0,          1,	{OPERAND_OFFSET4}},
 	/* Jump relative to (pc + op4) */
-    {"jumpTrue1",	  2,   -1,         1,	{OPERAND_INT1}},
+    {"jumpTrue1",	  2,   -1,         1,	{OPERAND_OFFSET1}},
 	/* Jump relative to (pc + op1) if stktop expr object is true */
-    {"jumpTrue4",	  5,   -1,         1,	{OPERAND_INT4}},
+    {"jumpTrue4",	  5,   -1,         1,	{OPERAND_OFFSET4}},
 	/* Jump relative to (pc + op4) if stktop expr object is true */
-    {"jumpFalse1",	  2,   -1,         1,	{OPERAND_INT1}},
+    {"jumpFalse1",	  2,   -1,         1,	{OPERAND_OFFSET1}},
 	/* Jump relative to (pc + op1) if stktop expr object is false */
-    {"jumpFalse4",	  5,   -1,         1,	{OPERAND_INT4}},
+    {"jumpFalse4",	  5,   -1,         1,	{OPERAND_OFFSET4}},
 	/* Jump relative to (pc + op4) if stktop expr object is false */
 
     {"lor",		  1,   -1,         0,	{OPERAND_NONE}},
@@ -297,7 +298,7 @@ InstructionDesc const tclInstructionTable[] = {
 	/* List Index:	push (lindex stktop op4) */
     {"listRangeImm",	  9,	0,	   2,	{OPERAND_IDX4, OPERAND_IDX4}},
 	/* List Range:	push (lrange stktop op4 op4) */
-    {"startCommand",	  9,	0,	   2,	{OPERAND_INT4,OPERAND_UINT4}},
+    {"startCommand",	  9,	0,	   2,	{OPERAND_OFFSET4, OPERAND_UINT4}},
 	/* Start of bytecoded command: op is the length of the cmd's code, op2
 	 * is number of commands here */
 
@@ -309,7 +310,7 @@ InstructionDesc const tclInstructionTable[] = {
     {"pushReturnOpts",	  1,	+1,	   0,	{OPERAND_NONE}},
 	/* Push the interpreter's return option dictionary as an object on the
 	 * stack. */
-    {"returnStk",	  1,	-2,	   0,	{OPERAND_NONE}},
+    {"returnStk",	  1,	-1,	   0,	{OPERAND_NONE}},
 	/* Compiled [return]; options and result are on the stack, code and
 	 * level are in the options. */
 
@@ -372,17 +373,18 @@ InstructionDesc const tclInstructionTable[] = {
 	 * Stack:  ... value => ...
 	 * Note that the jump table contains offsets relative to the PC when
 	 * it points to this instruction; the code is relocatable. */
-    {"upvar",            5,     0,        1,   {OPERAND_LVT4}},
+    {"upvar",            5,    -1,        1,   {OPERAND_LVT4}},
 	/* finds level and otherName in stack, links to local variable at
 	 * index op1. Leaves the level on stack. */
-    {"nsupvar",          5,     0,        1,   {OPERAND_LVT4}},
+    {"nsupvar",          5,    -1,        1,   {OPERAND_LVT4}},
 	/* finds namespace and otherName in stack, links to local variable at
 	 * index op1. Leaves the namespace on stack. */
-    {"variable",         5,     0,        1,   {OPERAND_LVT4}},
+    {"variable",         5,    -1,        1,   {OPERAND_LVT4}},
 	/* finds namespace and otherName in stack, links to local variable at
 	 * index op1. Leaves the namespace on stack. */
     {"syntax",		 9,   -1,         2,	{OPERAND_INT4, OPERAND_UINT4}},
-	/* Compiled bytecodes to signal syntax error. */
+	/* Compiled bytecodes to signal syntax error. Equivalent to returnImm
+	 * except for the ERR_ALREADY_LOGGED flag in the interpreter. */
     {"reverse",		 5,    0,         1,	{OPERAND_UINT4}},
 	/* Reverse the order of the arg elements at the top of stack */
 
@@ -430,10 +432,236 @@ InstructionDesc const tclInstructionTable[] = {
         /* Map variable contents back into a dictionary in a variable. Part of
          * [dict with].
 	 * Stack:  ... dictVarName path keyList => ... */
-    {"dictRecombineImm", 1,    -2,        1,    {OPERAND_LVT4}},
+    {"dictRecombineImm", 5,    -2,        1,    {OPERAND_LVT4}},
         /* Map variable contents back into a dictionary in the local variable
          * indicated by the LVT index. Part of [dict with].
 	 * Stack:  ... path keyList => ... */
+    {"dictExists",	 5,	INT_MIN,  1,	{OPERAND_UINT4}},
+	/* The top op4 words (min 1) are a key path into the dictionary just
+	 * below the keys on the stack, and all those values are replaced by a
+	 * boolean indicating whether it is possible to read out a value from
+	 * that key-path (like [dict exists]).
+	 * Stack:  ... dict key1 ... keyN => ... boolean */
+    {"verifyDict",	 1,    -1,	  0,	{OPERAND_NONE}},
+	/* Verifies that the word on the top of the stack is a dictionary,
+	 * popping it if it is and throwing an error if it is not.
+	 * Stack:  ... value => ... */
+
+    {"strmap",		 1,    -2,	  0,	{OPERAND_NONE}},
+	/* Simplified version of [string map] that only applies one change
+	 * string, and only case-sensitively.
+	 * Stack:  ... from to string => ... changedString */
+    {"strfind",		 1,    -1,	  0,	{OPERAND_NONE}},
+	/* Find the first index of a needle string in a haystack string,
+	 * producing the index (integer) or -1 if nothing found.
+	 * Stack:  ... needle haystack => ... index */
+    {"strrfind",	 1,    -1,	  0,	{OPERAND_NONE}},
+	/* Find the last index of a needle string in a haystack string,
+	 * producing the index (integer) or -1 if nothing found.
+	 * Stack:  ... needle haystack => ... index */
+    {"strrangeImm",	 9,	0,	  2,	{OPERAND_IDX4, OPERAND_IDX4}},
+	/* String Range: push (string range stktop op4 op4) */
+    {"strrange",	 1,    -2,	  0,	{OPERAND_NONE}},
+	/* String Range with non-constant arguments.
+	 * Stack:  ... string idxA idxB => ... substring */
+
+    {"yield",		 1,	0,	  0,	{OPERAND_NONE}},
+	/* Makes the current coroutine yield the value at the top of the
+	 * stack, and places the response back on top of the stack when it
+	 * resumes.
+	 * Stack:  ... valueToYield => ... resumeValue */
+    {"coroName",         1,    +1,	  0,	{OPERAND_NONE}},
+	/* Push the name of the interpreter's current coroutine as an object
+	 * on the stack. */
+    {"tailcall",	 2,    INT_MIN,	  1,	{OPERAND_UINT1}},
+	/* Do a tailcall with the opnd items on the stack as the thing to
+	 * tailcall to; opnd must be greater than 0 for the semantics to work
+	 * right. */
+
+    {"currentNamespace", 1,    +1,	  0,	{OPERAND_NONE}},
+	/* Push the name of the interpreter's current namespace as an object
+	 * on the stack. */
+    {"infoLevelNumber",  1,    +1,	  0,	{OPERAND_NONE}},
+	/* Push the stack depth (i.e., [info level]) of the interpreter as an
+	 * object on the stack. */
+    {"infoLevelArgs",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* Push the argument words to a stack depth (i.e., [info level <n>])
+	 * of the interpreter as an object on the stack.
+	 * Stack:  ... depth => ... argList */
+    {"resolveCmd",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* Resolves the command named on the top of the stack to its fully
+	 * qualified version, or produces the empty string if no such command
+	 * exists. Never generates errors.
+	 * Stack:  ... cmdName => ... fullCmdName */
+
+    {"tclooSelf",	 1,	+1,	  0,	{OPERAND_NONE}},
+	/* Push the identity of the current TclOO object (i.e., the name of
+	 * its current public access command) on the stack. */
+    {"tclooClass",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* Push the class of the TclOO object named at the top of the stack
+	 * onto the stack.
+	 * Stack:  ... object => ... class */
+    {"tclooNamespace",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* Push the namespace of the TclOO object named at the top of the
+	 * stack onto the stack.
+	 * Stack:  ... object => ... namespace */
+    {"tclooIsObject",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* Push whether the value named at the top of the stack is a TclOO
+	 * object (i.e., a boolean). Can corrupt the interpreter result
+	 * despite not throwing, so not safe for use in a post-exception
+	 * context.
+	 * Stack:  ... value => ... boolean */
+
+    {"arrayExistsStk",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* Looks up the element on the top of the stack and tests whether it
+	 * is an array. Pushes a boolean describing whether this is the
+	 * case. Also runs the whole-array trace on the named variable, so can
+	 * throw anything.
+	 * Stack:  ... varName => ... boolean */
+    {"arrayExistsImm",	 5,	+1,	  1,	{OPERAND_UINT4}},
+	/* Looks up the variable indexed by opnd and tests whether it is an
+	 * array. Pushes a boolean describing whether this is the case. Also
+	 * runs the whole-array trace on the named variable, so can throw
+	 * anything.
+	 * Stack:  ... => ... boolean */
+    {"arrayMakeStk",	 1,	-1,	  0,	{OPERAND_NONE}},
+	/* Forces the element on the top of the stack to be the name of an
+	 * array.
+	 * Stack:  ... varName => ... */
+    {"arrayMakeImm",	 5,	0,	  1,	{OPERAND_UINT4}},
+	/* Forces the variable indexed by opnd to be an array. Does not touch
+	 * the stack. */
+
+    {"invokeReplace",	 6,	INT_MIN,  2,	{OPERAND_UINT4,OPERAND_UINT1}},
+	/* Invoke command named objv[0], replacing the first two words with
+	 * the word at the top of the stack;
+	 * <objc,objv> = <op4,top op4 after popping 1> */
+
+    {"listConcat",	 1,	-1,	  0,	{OPERAND_NONE}},
+	/* Concatenates the two lists at the top of the stack into a single
+	 * list and pushes that resulting list onto the stack.
+	 * Stack: ... list1 list2 => ... [lconcat list1 list2] */
+
+    {"expandDrop",       1,    0,          0,	{OPERAND_NONE}},
+	/* Drops an element from the auxiliary stack, popping stack elements
+	 * until the matching stack depth is reached. */
+
+    /* New foreach implementation */
+    {"foreach_start",	 5,	+2,	  1,	{OPERAND_AUX4}},
+	/* Initialize execution of a foreach loop. Operand is aux data index
+	 * of the ForeachInfo structure for the foreach command. It pushes 2
+	 * elements which hold runtime params for foreach_step, they are later
+	 * dropped by foreach_end together with the value lists. NOTE that the
+	 * iterator-tracker and info reference must not be passed to bytecodes
+	 * that handle normal Tcl values. NOTE that this instruction jumps to
+	 * the foreach_step instruction paired with it; the stack info below
+	 * is only nominal.
+	 * Stack: ... listObjs... => ... listObjs... iterTracker info */
+    {"foreach_step",	 1,	 0,	  0,	{OPERAND_NONE}},
+	/* "Step" or begin next iteration of foreach loop. Assigns to foreach
+	 * iteration variables. May jump to straight after the foreach_start
+	 * that pushed the iterTracker and info values. MUST be followed
+	 * immediately by a foreach_end.
+	 * Stack: ... listObjs... iterTracker info =>
+	 *				... listObjs... iterTracker info */
+    {"foreach_end",	 1,	 0,	  0,	{OPERAND_NONE}},
+	/* Clean up a foreach loop by dropping the info value, the tracker
+	 * value and the lists that were being iterated over.
+	 * Stack: ... listObjs... iterTracker info => ... */
+    {"lmap_collect",	 1,	-1,	  0,	{OPERAND_NONE}},
+	/* Appends the value at the top of the stack to the list located on
+	 * the stack the "other side" of the foreach-related values.
+	 * Stack: ... collector listObjs... iterTracker info value =>
+	 *			... collector listObjs... iterTracker info */
+
+    {"strtrim",		 1,	-1,	  0,	{OPERAND_NONE}},
+	/* [string trim] core: removes the characters (designated by the value
+	 * at the top of the stack) from both ends of the string and pushes
+	 * the resulting string.
+	 * Stack: ... string charset => ... trimmedString */
+    {"strtrimLeft",	 1,	-1,	  0,	{OPERAND_NONE}},
+	/* [string trimleft] core: removes the characters (designated by the
+	 * value at the top of the stack) from the left of the string and
+	 * pushes the resulting string.
+	 * Stack: ... string charset => ... trimmedString */
+    {"strtrimRight",	 1,	-1,	  0,	{OPERAND_NONE}},
+	/* [string trimright] core: removes the characters (designated by the
+	 * value at the top of the stack) from the right of the string and
+	 * pushes the resulting string.
+	 * Stack: ... string charset => ... trimmedString */
+
+    {"concatStk",	 5,	INT_MIN,  1,	{OPERAND_UINT4}},
+	/* Wrapper round Tcl_ConcatObj(), used for [concat] and [eval]. opnd
+	 * is number of values to concatenate.
+	 * Operation:	push concat(stk1 stk2 ... stktop) */
+
+    {"strcaseUpper",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* [string toupper] core: converts whole string to upper case using
+	 * the default (extended "C" locale) rules.
+	 * Stack: ... string => ... newString */
+    {"strcaseLower",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* [string tolower] core: converts whole string to upper case using
+	 * the default (extended "C" locale) rules.
+	 * Stack: ... string => ... newString */
+    {"strcaseTitle",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* [string totitle] core: converts whole string to upper case using
+	 * the default (extended "C" locale) rules.
+	 * Stack: ... string => ... newString */
+    {"strreplace",	 1,	-3,	  0,	{OPERAND_NONE}},
+	/* [string replace] core: replaces a non-empty range of one string
+	 * with the contents of another.
+	 * Stack: ... string fromIdx toIdx replacement => ... newString */
+
+    {"originCmd",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* Reports which command was the origin (via namespace import chain)
+	 * of the command named on the top of the stack.
+	 * Stack:  ... cmdName => ... fullOriginalCmdName */
+
+    {"tclooNext",	 2,	INT_MIN,  1,	{OPERAND_UINT1}},
+	/* Call the next item on the TclOO call chain, passing opnd arguments
+	 * (min 1, max 255, *includes* "next").  The result of the invoked
+	 * method implementation will be pushed on the stack in place of the
+	 * arguments (similar to invokeStk).
+	 * Stack:  ... "next" arg2 arg3 -- argN => ... result */
+    {"tclooNextClass",	 2,	INT_MIN,  1,	{OPERAND_UINT1}},
+	/* Call the following item on the TclOO call chain defined by class
+	 * className, passing opnd arguments (min 2, max 255, *includes*
+	 * "nextto" and the class name). The result of the invoked method
+	 * implementation will be pushed on the stack in place of the
+	 * arguments (similar to invokeStk).
+	 * Stack:  ... "nextto" className arg3 arg4 -- argN => ... result */
+
+    {"yieldToInvoke",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* Makes the current coroutine yield the value at the top of the
+	 * stack, invoking the given command/args with resolution in the given
+	 * namespace (all packed into a list), and places the list of values
+	 * that are the response back on top of the stack when it resumes.
+	 * Stack:  ... [list ns cmd arg1 ... argN] => ... resumeList */
+
+    {"numericType",	 1,	0,	  0,	{OPERAND_NONE}},
+	/* Pushes the numeric type code of the word at the top of the stack.
+	 * Stack:  ... value => ... typeCode */
+    {"tryCvtToBoolean",	 1,	+1,	  0,	{OPERAND_NONE}},
+	/* Try converting stktop to boolean if possible. No errors.
+	 * Stack:  ... value => ... value isStrictBool */
+    {"strclass",	 2,	0,	  1,	{OPERAND_SCLS1}},
+	/* See if all the characters of the given string are a member of the
+	 * specified (by opnd) character class. Note that an empty string will
+	 * satisfy the class check (standard definition of "all").
+	 * Stack:  ... stringValue => ... boolean */
+
+    {"lappendList",	 5,	0,	1,	{OPERAND_LVT4}},
+	/* Lappend list to scalar variable at op4 in frame.
+	 * Stack:  ... list => ... listVarContents */
+    {"lappendListArray", 5,	-1,	1,	{OPERAND_LVT4}},
+	/* Lappend list to array element; array at op4.
+	 * Stack:  ... elem list => ... listVarContents */
+    {"lappendListArrayStk", 1,	-2,	0,	{OPERAND_NONE}},
+	/* Lappend list to array element.
+	 * Stack:  ... arrayName elem list => ... listVarContents */
+    {"lappendListStk",	 1,	-1,	0,	{OPERAND_NONE}},
+	/* Lappend list to general variable.
+	 * Stack:  ... varName list => ... listVarContents */
 
     {NULL, 0, 0, 0, {OPERAND_NONE}}
 };
@@ -455,16 +683,15 @@ static void		EnterCmdStartData(CompileEnv *envPtr,
 static void		FreeByteCodeInternalRep(Tcl_Obj *objPtr);
 static void		FreeSubstCodeInternalRep(Tcl_Obj *objPtr);
 static int		GetCmdLocEncodingSize(CompileEnv *envPtr);
+static int		IsCompactibleCompileEnv(Tcl_Interp *interp,
+			    CompileEnv *envPtr);
 #ifdef TCL_COMPILE_STATS
 static void		RecordByteCodeStats(ByteCode *codePtr);
 #endif /* TCL_COMPILE_STATS */
+static void		RegisterAuxDataType(const AuxDataType *typePtr);
 static int		SetByteCodeFromAny(Tcl_Interp *interp,
 			    Tcl_Obj *objPtr);
-static int		FormatInstruction(ByteCode *codePtr,
-			    const unsigned char *pc, Tcl_Obj *bufferObj);
-static void		PrintSourceToObj(Tcl_Obj *appendObj,
-			    const char *stringPtr, int maxChars);
-static void		UpdateStringOfInstName(Tcl_Obj *objPtr);
+static void		StartExpanding(CompileEnv *envPtr);
 
 /*
  * TIP #280: Helper for building the per-word line information of all compiled
@@ -474,6 +701,7 @@ static void		EnterCmdWordData(ExtCmdLoc *eclPtr, int srcOffset,
 			    Tcl_Token *tokenPtr, const char *cmd, int len,
 			    int numWords, int line, int *clNext, int **lines,
 			    CompileEnv *envPtr);
+static void		ReleaseCmdWordData(ExtCmdLoc *eclPtr);
 
 /*
  * The structure below defines the bytecode Tcl object type by means of
@@ -502,17 +730,11 @@ static const Tcl_ObjType substCodeType = {
 };
 
 /*
- * The structure below defines an instruction name Tcl object to allow
- * reporting of inner contexts in errorstack without string allocation.
+ * Helper macros.
  */
 
-static const Tcl_ObjType tclInstNameType = {
-    "instname",			/* name */
-    NULL,			/* freeIntRepProc */
-    NULL,			/* dupIntRepProc */
-    UpdateStringOfInstName,	/* updateStringProc */
-    NULL,			/* setFromAnyProc */
-};
+#define TclIncrUInt4AtPtr(ptr, delta) \
+    TclStoreInt4AtPtr(TclGetUInt4AtPtr(ptr)+(delta), (ptr));
 
 /*
  *----------------------------------------------------------------------
@@ -551,11 +773,9 @@ TclSetByteCodeFromAny(
     Interp *iPtr = (Interp *) interp;
     CompileEnv compEnv;		/* Compilation environment structure allocated
 				 * in frame. */
-    register const AuxData *auxDataPtr;
-    LiteralEntry *entryPtr;
-    register int i;
     int length, result = TCL_OK;
     const char *stringPtr;
+    Proc *procPtr = iPtr->compiledProcPtr;
     ContLineLoc *clLocPtr;
 
 #ifdef TCL_COMPILE_DEBUG
@@ -593,9 +813,7 @@ TclSetByteCodeFromAny(
 
     clLocPtr = TclContinuationsGet(objPtr);
     if (clLocPtr) {
-	compEnv.clLoc = clLocPtr;
-	compEnv.clNext = &compEnv.clLoc->loc[0];
-	Tcl_Preserve(compEnv.clLoc);
+	compEnv.clNext = &clLocPtr->loc[0];
     }
 
     TclCompileScript(interp, stringPtr, length, &compEnv);
@@ -607,6 +825,40 @@ TclSetByteCodeFromAny(
     TclEmitOpcode(INST_DONE, &compEnv);
 
     /*
+     * Check for optimizations!
+     *
+     * Test if the generated code is free of most hazards; if so, recompile
+     * but with generation of INST_START_CMD disabled. This produces somewhat
+     * faster code in some cases, and more compact code in more.
+     */
+
+    if (Tcl_GetMaster(interp) == NULL &&
+	    !Tcl_LimitTypeEnabled(interp, TCL_LIMIT_COMMANDS|TCL_LIMIT_TIME)
+	    && IsCompactibleCompileEnv(interp, &compEnv)) {
+	TclFreeCompileEnv(&compEnv);
+	iPtr->compiledProcPtr = procPtr;
+	TclInitCompileEnv(interp, &compEnv, stringPtr, length,
+		iPtr->invokeCmdFramePtr, iPtr->invokeWord);
+	if (clLocPtr) {
+	    compEnv.clNext = &clLocPtr->loc[0];
+	}
+	compEnv.atCmdStart = 2;		/* The disabling magic. */
+	TclCompileScript(interp, stringPtr, length, &compEnv);
+	assert (compEnv.atCmdStart > 1);
+	TclEmitOpcode(INST_DONE, &compEnv);
+	assert (compEnv.atCmdStart > 1);
+    }
+
+    /*
+     * Apply some peephole optimizations that can cross specific/generic
+     * instruction generator boundaries.
+     */
+
+    if (iPtr->extra.optimizer) {
+	(iPtr->extra.optimizer)(&compEnv);
+    }
+
+    /*
      * Invoke the compilation hook procedure if one exists.
      */
 
@@ -623,35 +875,14 @@ TclSetByteCodeFromAny(
     TclVerifyLocalLiteralTable(&compEnv);
 #endif /*TCL_COMPILE_DEBUG*/
 
-    TclInitByteCodeObj(objPtr, &compEnv);
-#ifdef TCL_COMPILE_DEBUG
-    if (tclTraceCompile >= 2) {
-	TclPrintByteCodeObj(interp, objPtr);
-	fflush(stdout);
-    }
-#endif /* TCL_COMPILE_DEBUG */
-
-    if (result != TCL_OK) {
-	/*
-	 * Handle any error from the hookProc
-	 */
-
-	entryPtr = compEnv.literalArrayPtr;
-	for (i = 0;  i < compEnv.literalArrayNext;  i++) {
-	    TclReleaseLiteral(interp, entryPtr->objPtr);
-	    entryPtr++;
-	}
+    if (result == TCL_OK) {
+	TclInitByteCodeObj(objPtr, &compEnv);
 #ifdef TCL_COMPILE_DEBUG
-	TclVerifyGlobalLiteralTable(iPtr);
-#endif /*TCL_COMPILE_DEBUG*/
-
-	auxDataPtr = compEnv.auxDataArrayPtr;
-	for (i = 0;  i < compEnv.auxDataArrayNext;  i++) {
-	    if (auxDataPtr->type->freeProc != NULL) {
-		auxDataPtr->type->freeProc(auxDataPtr->clientData);
-	    }
-	    auxDataPtr++;
+	if (tclTraceCompile >= 2) {
+	    TclPrintByteCodeObj(interp, objPtr);
+	    fflush(stdout);
 	}
+#endif /* TCL_COMPILE_DEBUG */
     }
 
     TclFreeCompileEnv(&compEnv);
@@ -690,8 +921,7 @@ SetByteCodeFromAny(
     if (interp == NULL) {
 	return TCL_ERROR;
     }
-    TclSetByteCodeFromAny(interp, objPtr, NULL, NULL);
-    return TCL_OK;
+    return TclSetByteCodeFromAny(interp, objPtr, NULL, NULL);
 }
 
 /*
@@ -745,10 +975,9 @@ static void
 FreeByteCodeInternalRep(
     register Tcl_Obj *objPtr)	/* Object whose internal rep to free. */
 {
-    register ByteCode *codePtr = objPtr->internalRep.otherValuePtr;
+    register ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1;
 
     objPtr->typePtr = NULL;
-    objPtr->internalRep.otherValuePtr = NULL;
     codePtr->refCount--;
     if (codePtr->refCount <= 0) {
 	TclCleanupByteCode(codePtr);
@@ -768,9 +997,8 @@ FreeByteCodeInternalRep(
  *	None.
  *
  * Side effects:
- *	Frees objPtr's bytecode internal representation and sets its type and
- *	objPtr->internalRep.otherValuePtr NULL. Also releases its literals and
- *	frees its auxiliary data items.
+ *	Frees objPtr's bytecode internal representation and sets its type NULL
+ *	Also releases its literals and frees its auxiliary data items.
  *
  *----------------------------------------------------------------------
  */
@@ -845,7 +1073,7 @@ TclCleanupByteCode(
      * released.
      */
 
-    if ((codePtr->flags & TCL_BYTECODE_PRECOMPILED) || (interp == NULL)) {
+    if (codePtr->flags & TCL_BYTECODE_PRECOMPILED) {
 
 	objArrayPtr = codePtr->objArrayPtr;
 	for (i = 0;  i < numLitObjects;  i++) {
@@ -858,17 +1086,9 @@ TclCleanupByteCode(
 	codePtr->numLitObjects = 0;
     } else {
 	objArrayPtr = codePtr->objArrayPtr;
-	for (i = 0;  i < numLitObjects;  i++) {
-	    /*
-	     * TclReleaseLiteral sets a ByteCode's object array entry NULL to
-	     * indicate that it has already freed the literal.
-	     */
-
-	    objPtr = *objArrayPtr;
-	    if (objPtr != NULL) {
-		TclReleaseLiteral(interp, objPtr);
-	    }
-	    objArrayPtr++;
+	while (numLitObjects--) {
+	    /* TclReleaseLiteral calls Tcl_DecrRefCount() for us */
+	    TclReleaseLiteral(interp, *objArrayPtr++);
 	}
     }
 
@@ -893,22 +1113,7 @@ TclCleanupByteCode(
 		(char *) codePtr);
 
 	if (hePtr) {
-	    ExtCmdLoc *eclPtr = Tcl_GetHashValue(hePtr);
-
-	    if (eclPtr->type == TCL_LOCATION_SOURCE) {
-		Tcl_DecrRefCount(eclPtr->path);
-	    }
-	    for (i=0 ; i<eclPtr->nuloc ; i++) {
-		ckfree(eclPtr->loc[i].line);
-	    }
-
-	    if (eclPtr->loc != NULL) {
-		ckfree(eclPtr->loc);
-	    }
-
-	    Tcl_DeleteHashTable(&eclPtr->litInfo);
-
-	    ckfree(eclPtr);
+	    ReleaseCmdWordData(Tcl_GetHashValue(hePtr));
 	    Tcl_DeleteHashEntry(hePtr);
 	}
     }
@@ -922,6 +1127,77 @@ TclCleanupByteCode(
 }
 
 /*
+ * ---------------------------------------------------------------------
+ *
+ * IsCompactibleCompileEnv --
+ *
+ *	Checks to see if we may apply some basic compaction optimizations to a
+ *	piece of bytecode. Idempotent.
+ *
+ * ---------------------------------------------------------------------
+ */
+
+static int
+IsCompactibleCompileEnv(
+    Tcl_Interp *interp,
+    CompileEnv *envPtr)
+{
+    unsigned char *pc;
+    int size;
+
+    /*
+     * Special: procedures in the '::tcl' namespace (or its children) are
+     * considered to be well-behaved and so can have compaction applied even
+     * if it would otherwise be invalid.
+     */
+
+    if (envPtr->procPtr != NULL && envPtr->procPtr->cmdPtr != NULL
+	    && envPtr->procPtr->cmdPtr->nsPtr != NULL) {
+	Namespace *nsPtr = envPtr->procPtr->cmdPtr->nsPtr;
+
+	if (strcmp(nsPtr->fullName, "::tcl") == 0
+		|| strncmp(nsPtr->fullName, "::tcl::", 7) == 0) {
+	    return 1;
+	}
+    }
+
+    /*
+     * Go through and ensure that no operation involved can cause a desired
+     * change of bytecode sequence during running. This comes down to ensuring
+     * that there are no mapped variables (due to traces) or calls to external
+     * commands (traces, [uplevel] trickery). This is actually a very
+     * conservative check; it turns down a lot of code that is OK in practice.
+     */
+
+    for (pc = envPtr->codeStart ; pc < envPtr->codeNext ; pc += size) {
+	switch (*pc) {
+	    /* Invokes */
+	case INST_INVOKE_STK1:
+	case INST_INVOKE_STK4:
+	case INST_INVOKE_EXPANDED:
+	case INST_INVOKE_REPLACE:
+	    return 0;
+	    /* Runtime evals */
+	case INST_EVAL_STK:
+	case INST_EXPR_STK:
+	case INST_YIELD:
+	    return 0;
+	    /* Upvars */
+	case INST_UPVAR:
+	case INST_NSUPVAR:
+	case INST_VARIABLE:
+	    return 0;
+	default:
+	    size = tclInstructionTable[*pc].numBytes;
+	    assert (size > 0);
+	    break;
+	}
+    }
+
+    return 1;
+}
+
+/*
  *----------------------------------------------------------------------
  *
  * Tcl_SubstObj --
@@ -1045,14 +1321,19 @@ CompileSubstObj(
 	objPtr->typePtr = &substCodeType;
 	TclFreeCompileEnv(&compEnv);
 
-	codePtr = objPtr->internalRep.otherValuePtr;
+	codePtr = objPtr->internalRep.twoPtrValue.ptr1;
 	objPtr->internalRep.ptrAndLongRep.ptr = codePtr;
 	objPtr->internalRep.ptrAndLongRep.value = flags;
 	if (iPtr->varFramePtr->localCachePtr) {
 	    codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr;
 	    codePtr->localCachePtr->refCount++;
 	}
-	/* TODO: Debug printing? */
+#ifdef TCL_COMPILE_DEBUG
+	if (tclTraceCompile >= 2) {
+	    TclPrintByteCodeObj(interp, objPtr);
+	    fflush(stdout);
+	}
+#endif /* TCL_COMPILE_DEBUG */
     }
     return codePtr;
 }
@@ -1084,12 +1365,31 @@ FreeSubstCodeInternalRep(
     register ByteCode *codePtr = objPtr->internalRep.ptrAndLongRep.ptr;
 
     objPtr->typePtr = NULL;
-    objPtr->internalRep.otherValuePtr = NULL;
     codePtr->refCount--;
     if (codePtr->refCount <= 0) {
 	TclCleanupByteCode(codePtr);
     }
 }
+
+static void
+ReleaseCmdWordData(
+    ExtCmdLoc *eclPtr)
+{
+    int i;
+
+    if (eclPtr->type == TCL_LOCATION_SOURCE) {
+	Tcl_DecrRefCount(eclPtr->path);
+    }
+    for (i=0 ; i<eclPtr->nuloc ; i++) {
+	ckfree((char *) eclPtr->loc[i].line);
+    }
+
+    if (eclPtr->loc != NULL) {
+	ckfree((char *) eclPtr->loc);
+    }
+
+    ckfree((char *) eclPtr);
+}
 
 /*
  *----------------------------------------------------------------------
@@ -1122,6 +1422,8 @@ TclInitCompileEnv(
 {
     Interp *iPtr = (Interp *) interp;
 
+    assert(tclInstructionTable[LAST_INST_OPCODE+1].name == NULL);
+
     envPtr->iPtr = iPtr;
     envPtr->source = stringPtr;
     envPtr->numSrcBytes = numBytes;
@@ -1145,6 +1447,7 @@ TclInitCompileEnv(
     envPtr->mallocedLiteralArray = 0;
 
     envPtr->exceptArrayPtr = envPtr->staticExceptArraySpace;
+    envPtr->exceptAuxArrayPtr = envPtr->staticExAuxArraySpace;
     envPtr->exceptArrayNext = 0;
     envPtr->exceptArrayEnd = COMPILEENV_INIT_EXCEPT_RANGES;
     envPtr->mallocedExceptArray = 0;
@@ -1153,6 +1456,7 @@ TclInitCompileEnv(
     envPtr->cmdMapEnd = COMPILEENV_INIT_CMD_MAP_SIZE;
     envPtr->mallocedCmdMap = 0;
     envPtr->atCmdStart = 1;
+    envPtr->expandCount = 0;
 
     /*
      * TIP #280: Set up the extended command location information, based on
@@ -1168,9 +1472,8 @@ TclInitCompileEnv(
     envPtr->extCmdMapPtr->nloc = 0;
     envPtr->extCmdMapPtr->nuloc = 0;
     envPtr->extCmdMapPtr->path = NULL;
-    Tcl_InitHashTable(&envPtr->extCmdMapPtr->litInfo, TCL_ONE_WORD_KEYS);
 
-    if ((invoker == NULL) || (invoker->type == TCL_LOCATION_EVAL_LIST)) {
+    if (invoker == NULL) {
 	/*
 	 * Initialize the compiler for relative counting in case of a
 	 * dynamic context.
@@ -1284,7 +1587,6 @@ TclInitCompileEnv(
      * data is available.
      */
 
-    envPtr->clLoc = NULL;
     envPtr->clNext = NULL;
 
     envPtr->auxDataArrayPtr = envPtr->staticAuxDataArraySpace;
@@ -1323,6 +1625,32 @@ TclFreeCompileEnv(
 	ckfree(envPtr->localLitTable.buckets);
 	envPtr->localLitTable.buckets = envPtr->localLitTable.staticBuckets;
     }
+    if (envPtr->iPtr) {
+	/* 
+	 * We never converted to Bytecode, so free the things we would
+	 * have transferred to it.
+	 */
+
+	int i;
+	LiteralEntry *entryPtr = envPtr->literalArrayPtr;
+	AuxData *auxDataPtr = envPtr->auxDataArrayPtr;
+
+	for (i = 0;  i < envPtr->literalArrayNext;  i++) {
+	    TclReleaseLiteral((Tcl_Interp *)envPtr->iPtr, entryPtr->objPtr);
+	    entryPtr++;
+	}
+
+#ifdef TCL_COMPILE_DEBUG
+	TclVerifyGlobalLiteralTable(envPtr->iPtr);
+#endif /*TCL_COMPILE_DEBUG*/
+
+	for (i = 0;  i < envPtr->auxDataArrayNext;  i++) {
+	    if (auxDataPtr->type->freeProc != NULL) {
+		auxDataPtr->type->freeProc(auxDataPtr->clientData);
+	    }
+	    auxDataPtr++;
+	}
+    }
     if (envPtr->mallocedCodeArray) {
 	ckfree(envPtr->codeStart);
     }
@@ -1331,6 +1659,7 @@ TclFreeCompileEnv(
     }
     if (envPtr->mallocedExceptArray) {
 	ckfree(envPtr->exceptArrayPtr);
+	ckfree(envPtr->exceptAuxArrayPtr);
     }
     if (envPtr->mallocedCmdMap) {
 	ckfree(envPtr->cmdMapPtr);
@@ -1339,17 +1668,8 @@ TclFreeCompileEnv(
 	ckfree(envPtr->auxDataArrayPtr);
     }
     if (envPtr->extCmdMapPtr) {
-	ckfree(envPtr->extCmdMapPtr);
-    }
-
-    /*
-     * If we used data about invisible continuation lines, then now is the
-     * time to release on our hold on it. The lock was set in function
-     * TclSetByteCodeFromAny(), found in this file.
-     */
-
-    if (envPtr->clLoc) {
-	Tcl_Release(envPtr->clLoc);
+	ReleaseCmdWordData(envPtr->extCmdMapPtr);
+	envPtr->extCmdMapPtr = NULL;
     }
 }
 
@@ -1451,452 +1771,467 @@ TclWordKnownAtCompileTime(
  *----------------------------------------------------------------------
  */
 
+static int
+ExpandRequested(
+    Tcl_Token *tokenPtr,
+    int numWords)
+{
+    /* Determine whether any words of the command require expansion */
+    while (numWords--) {
+	if (tokenPtr->type == TCL_TOKEN_EXPAND_WORD) {
+	    return 1;
+	}
+	tokenPtr = TokenAfter(tokenPtr);
+    }
+    return 0;
+}
+
+static void
+CompileCmdLiteral(
+    Tcl_Interp *interp,
+    Tcl_Obj *cmdObj,
+    CompileEnv *envPtr)
+{
+    int numBytes;
+    const char *bytes = Tcl_GetStringFromObj(cmdObj, &numBytes);
+    int cmdLitIdx = TclRegisterNewCmdLiteral(envPtr, bytes, numBytes);
+    Command *cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, cmdObj);
+
+    if (cmdPtr) {
+	TclSetCmdNameObj(interp, TclFetchLiteral(envPtr, cmdLitIdx), cmdPtr);
+    }
+    TclEmitPush(cmdLitIdx, envPtr);
+}
+
 void
-TclCompileScript(
-    Tcl_Interp *interp,		/* Used for error and status reporting. Also
-				 * serves as context for finding and compiling
-				 * commands. May not be NULL. */
-    const char *script,		/* The source script to compile. */
-    int numBytes,		/* Number of bytes in script. If < 0, the
-				 * script consists of all bytes up to the
-				 * first null character. */
-    CompileEnv *envPtr)		/* Holds resulting instructions. */
+TclCompileInvocation(
+    Tcl_Interp *interp,
+    Tcl_Token *tokenPtr,
+    Tcl_Obj *cmdObj,
+    int numWords,
+    CompileEnv *envPtr)
 {
-    Interp *iPtr = (Interp *) interp;
-    int lastTopLevelCmdIndex = -1;
-				/* Index of most recent toplevel command in
-				 * the command location table. Initialized to
-				 * avoid compiler warning. */
-    int startCodeOffset = -1;	/* Offset of first byte of current command's
-				 * code. Init. to avoid compiler warning. */
-    unsigned char *entryCodeNext = envPtr->codeNext;
-    const char *p, *next;
-    Namespace *cmdNsPtr;
-    Command *cmdPtr;
-    Tcl_Token *tokenPtr;
-    int bytesLeft, isFirstCmd, wordIdx, currCmdIndex, commandLength, objIndex;
-    Tcl_DString ds;
-    /* TIP #280 */
-    ExtCmdLoc *eclPtr = envPtr->extCmdMapPtr;
-    int *wlines, wlineat, cmdLine, *clNext;
-    Tcl_Parse *parsePtr = TclStackAlloc(interp, sizeof(Tcl_Parse));
+    int wordIdx = 0, depth = TclGetStackDepth(envPtr);
+    DefineLineInformation;
+
+    if (cmdObj) {
+	CompileCmdLiteral(interp, cmdObj, envPtr);
+	wordIdx = 1;
+	tokenPtr = TokenAfter(tokenPtr);
+    }
+
+    for (; wordIdx < numWords; wordIdx++, tokenPtr = TokenAfter(tokenPtr)) {
+	int objIdx;
 
-    Tcl_DStringInit(&ds);
+	SetLineInformation(wordIdx);
 
-    if (numBytes < 0) {
-	numBytes = strlen(script);
+	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+	    CompileTokens(envPtr, tokenPtr, interp);
+	    continue;
+	}
+
+	objIdx = TclRegisterNewLiteral(envPtr,
+		tokenPtr[1].start, tokenPtr[1].size);
+	if (envPtr->clNext) {
+	    TclContinuationsEnterDerived(TclFetchLiteral(envPtr, objIdx),
+		    tokenPtr[1].start - envPtr->source, envPtr->clNext);
+	}
+	TclEmitPush(objIdx, envPtr);
     }
-    Tcl_ResetResult(interp);
-    isFirstCmd = 1;
 
-    if (envPtr->procPtr != NULL) {
-	cmdNsPtr = envPtr->procPtr->cmdPtr->nsPtr;
+    if (wordIdx <= 255) {
+	TclEmitInvoke(envPtr, INST_INVOKE_STK1, wordIdx);
     } else {
-	cmdNsPtr = NULL;	/* use current NS */
+	TclEmitInvoke(envPtr, INST_INVOKE_STK4, wordIdx);
     }
+    TclCheckStackDepth(depth+1, envPtr);
+}
 
-    /*
-     * Each iteration through the following loop compiles the next command
-     * from the script.
-     */
+static void
+CompileExpanded(
+    Tcl_Interp *interp,
+    Tcl_Token *tokenPtr,
+    Tcl_Obj *cmdObj,
+    int numWords,
+    CompileEnv *envPtr)
+{
+    int wordIdx = 0;
+    DefineLineInformation;
+    int depth = TclGetStackDepth(envPtr);
+    
+    StartExpanding(envPtr);
+    if (cmdObj) {
+	CompileCmdLiteral(interp, cmdObj, envPtr);
+	wordIdx = 1;
+	tokenPtr = TokenAfter(tokenPtr);
+    }
 
-    p = script;
-    bytesLeft = numBytes;
-    cmdLine = envPtr->line;
-    clNext = envPtr->clNext;
-    do {
-	if (Tcl_ParseCommand(interp, p, bytesLeft, 0, parsePtr) != TCL_OK) {
-	    /*
-	     * Compile bytecodes to report the parse error at runtime.
-	     */
+    for (; wordIdx < numWords; wordIdx++, tokenPtr = TokenAfter(tokenPtr)) {
+	int objIdx;
 
-	    Tcl_LogCommandInfo(interp, script, parsePtr->commandStart,
-		    /* Drop the command terminator (";","]") if appropriate */
-		    (parsePtr->term ==
-		    parsePtr->commandStart + parsePtr->commandSize - 1)?
-		    parsePtr->commandSize - 1 : parsePtr->commandSize);
-	    TclCompileSyntaxError(interp, envPtr);
-	    break;
+	SetLineInformation(wordIdx);
+
+	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+	    CompileTokens(envPtr, tokenPtr, interp);
+	    if (tokenPtr->type == TCL_TOKEN_EXPAND_WORD) {
+		TclEmitInstInt4(INST_EXPAND_STKTOP,
+			envPtr->currStackDepth, envPtr);
+	    }
+	    continue;
 	}
 
-	/*
-	 * TIP #280: We have to count newlines before the command even in the
-	 * degenerate case when the command has no words. (See test
-	 * info-30.33).
-	 * So make that counting here, and not in the (numWords > 0) branch
-	 * below.
-	 */
+	objIdx = TclRegisterNewLiteral(envPtr,
+		tokenPtr[1].start, tokenPtr[1].size);
+	if (envPtr->clNext) {
+	    TclContinuationsEnterDerived(TclFetchLiteral(envPtr, objIdx),
+		    tokenPtr[1].start - envPtr->source, envPtr->clNext);
+	}
+	TclEmitPush(objIdx, envPtr);
+    }
 
-	TclAdvanceLines(&cmdLine, p, parsePtr->commandStart);
-	TclAdvanceContinuations(&cmdLine, &clNext,
-		parsePtr->commandStart - envPtr->source);
+    /*
+     * The stack depth during argument expansion can only be managed at
+     * runtime, as the number of elements in the expanded lists is not known
+     * at compile time. We adjust here the stack depth estimate so that it is
+     * correct after the command with expanded arguments returns.
+     *
+     * The end effect of this command's invocation is that all the words of
+     * the command are popped from the stack, and the result is pushed: the
+     * stack top changes by (1-wordIdx).
+     *
+     * Note that the estimates are not correct while the command is being
+     * prepared and run, INST_EXPAND_STKTOP is not stack-neutral in general.
+     */
 
-	if (parsePtr->numWords > 0) {
-	    int expand = 0;	/* Set if there are dynamic expansions to
-				 * handle */
+    TclEmitInvoke(envPtr, INST_INVOKE_EXPANDED, wordIdx);
+    TclCheckStackDepth(depth+1, envPtr);
+}
 
-	    /*
-	     * If not the first command, pop the previous command's result
-	     * and, if we're compiling a top level command, update the last
-	     * command's code size to account for the pop instruction.
-	     */
+static int 
+CompileCmdCompileProc(
+    Tcl_Interp *interp,
+    Tcl_Parse *parsePtr,
+    Command *cmdPtr,
+    CompileEnv *envPtr)
+{
+    int unwind = 0, incrOffset = -1;
+    DefineLineInformation;
+    int depth = TclGetStackDepth(envPtr);
 
-	    if (!isFirstCmd) {
-		TclEmitOpcode(INST_POP, envPtr);
-		envPtr->cmdMapPtr[lastTopLevelCmdIndex].numCodeBytes =
-			(envPtr->codeNext - envPtr->codeStart)
-			- startCodeOffset;
-	    }
+    /*
+     * Emit of the INST_START_CMD instruction is controlled by the value of
+     * envPtr->atCmdStart:
+     *
+     * atCmdStart == 2	: We are not using the INST_START_CMD instruction.
+     * atCmdStart == 1	: INST_START_CMD was the last instruction emitted.
+     *			: We do not need to emit another.  Instead we
+     *			: increment the number of cmds started at it (except
+     *			: for the special case at the start of a script.)
+     * atCmdStart == 0	: The last instruction was something else.  We need
+     *			: to emit INST_START_CMD here.
+     */
+
+    switch (envPtr->atCmdStart) {
+    case 0:
+	unwind = tclInstructionTable[INST_START_CMD].numBytes;
+	TclEmitInstInt4(INST_START_CMD, 0, envPtr);
+	incrOffset = envPtr->codeNext - envPtr->codeStart;
+	TclEmitInt4(0, envPtr);
+	break;
+    case 1:
+	if (envPtr->codeNext > envPtr->codeStart) {
+	    incrOffset = envPtr->codeNext - 4 - envPtr->codeStart;
+	}
+	break;
+    case 2:
+	/* Nothing to do */
+	;
+    }
 
+    if (TCL_OK == TclAttemptCompileProc(interp, parsePtr, 1, cmdPtr, envPtr)) {
+	if (incrOffset >= 0) {
 	    /*
-	     * Determine the actual length of the command.
+	     * We successfully compiled a command.  Increment the number of
+	     * commands that start at the currently active INST_START_CMD.
 	     */
 
-	    commandLength = parsePtr->commandSize;
-	    if (parsePtr->term == parsePtr->commandStart + commandLength-1) {
-		/*
-		 * The command terminator character (such as ; or ]) is the
-		 * last character in the parsed command. Reduce the length by
-		 * one so that the trace message doesn't include the
-		 * terminator character.
-		 */
+	    unsigned char *incrPtr = envPtr->codeStart + incrOffset;
+	    unsigned char *startPtr = incrPtr - 5;
 
-		commandLength -= 1;
+	    TclIncrUInt4AtPtr(incrPtr, 1);
+	    if (unwind) {
+		/* We started the INST_START_CMD.  Record the code length. */
+		TclStoreInt4AtPtr(envPtr->codeNext - startPtr, startPtr + 1);
 	    }
+	}
+	TclCheckStackDepth(depth+1, envPtr);
+	return TCL_OK;
+    }
 
-#ifdef TCL_COMPILE_DEBUG
-	    /*
-	     * If tracing, print a line for each top level command compiled.
-	     */
+    envPtr->codeNext -= unwind; /* Unwind INST_START_CMD */
 
-	    if ((tclTraceCompile >= 1) && (envPtr->procPtr == NULL)) {
-		fprintf(stdout, "  Compiling: ");
-		TclPrintSource(stdout, parsePtr->commandStart,
-			TclMin(commandLength, 55));
-		fprintf(stdout, "\n");
-	    }
-#endif
+    /*
+     * Throw out any line information generated by the failed compile attempt.
+     */
 
-	    /*
-	     * Check whether expansion has been requested for any of the
-	     * words.
-	     */
+    while (mapPtr->nuloc - 1 > eclIndex) {
+	mapPtr->nuloc--;
+	ckfree(mapPtr->loc[mapPtr->nuloc].line);
+	mapPtr->loc[mapPtr->nuloc].line = NULL;
+    }
 
-	    for (wordIdx = 0, tokenPtr = parsePtr->tokenPtr;
-		    wordIdx < parsePtr->numWords;
-		    wordIdx++, tokenPtr += tokenPtr->numComponents + 1) {
-		if (tokenPtr->type == TCL_TOKEN_EXPAND_WORD) {
-		    expand = 1;
-		    break;
-		}
-	    }
+    /*
+     * Reset the index of next command.  Toss out any from failed nested
+     * partial compiles.
+     */
 
-	    envPtr->numCommands++;
-	    currCmdIndex = envPtr->numCommands - 1;
-	    lastTopLevelCmdIndex = currCmdIndex;
-	    startCodeOffset = envPtr->codeNext - envPtr->codeStart;
-	    EnterCmdStartData(envPtr, currCmdIndex,
-		    parsePtr->commandStart - envPtr->source, startCodeOffset);
+    envPtr->numCommands = mapPtr->nuloc;
+    return TCL_ERROR;
+}
 
-	    /*
-	     * Should only start issuing instructions after the "command has
-	     * started" so that the command range is correct in the bytecode.
-	     */
+static int
+CompileCommandTokens(
+    Tcl_Interp *interp,
+    Tcl_Parse *parsePtr,
+    CompileEnv *envPtr)
+{
+    Interp *iPtr = (Interp *) interp;
+    Tcl_Token *tokenPtr = parsePtr->tokenPtr;
+    ExtCmdLoc *eclPtr = envPtr->extCmdMapPtr;
+    Tcl_Obj *cmdObj = Tcl_NewObj();
+    Command *cmdPtr = NULL;
+    int code = TCL_ERROR;
+    int cmdKnown, expand = -1;
+    int *wlines, wlineat;
+    int cmdLine = envPtr->line;
+    int *clNext = envPtr->clNext;
+    int cmdIdx = envPtr->numCommands;
+    int startCodeOffset = envPtr->codeNext - envPtr->codeStart;
+    int depth = TclGetStackDepth(envPtr);
+    
+    assert (parsePtr->numWords > 0);
+
+    /* Pre-Compile */
+
+    envPtr->numCommands++;
+    EnterCmdStartData(envPtr, cmdIdx,
+	    parsePtr->commandStart - envPtr->source, startCodeOffset);
 
-	    if (expand) {
-		TclEmitOpcode(INST_EXPAND_START, envPtr);
-	    }
+    /*
+     * TIP #280. Scan the words and compute the extended location information.
+     * The map first contain full per-word line information for use by the
+     * compiler. This is later replaced by a reduced form which signals
+     * non-literal words, stored in 'wlines'.
+     */
 
-	    /*
-	     * TIP #280. Scan the words and compute the extended location
-	     * information. The map first contain full per-word line
-	     * information for use by the compiler. This is later replaced by
-	     * a reduced form which signals non-literal words, stored in
-	     * 'wlines'.
-	     */
+    EnterCmdWordData(eclPtr, parsePtr->commandStart - envPtr->source,
+	    parsePtr->tokenPtr, parsePtr->commandStart,
+	    parsePtr->commandSize, parsePtr->numWords, cmdLine,
+	    clNext, &wlines, envPtr);
+    wlineat = eclPtr->nuloc - 1;
 
-	    EnterCmdWordData(eclPtr, parsePtr->commandStart - envPtr->source,
-		    parsePtr->tokenPtr, parsePtr->commandStart,
-		    parsePtr->commandSize, parsePtr->numWords, cmdLine,
-		    clNext, &wlines, envPtr);
-	    wlineat = eclPtr->nuloc - 1;
+    envPtr->line = eclPtr->loc[wlineat].line[0];
+    envPtr->clNext = eclPtr->loc[wlineat].next[0];
 
+    /* Do we know the command word? */
+    Tcl_IncrRefCount(cmdObj);
+    tokenPtr = parsePtr->tokenPtr;
+    cmdKnown = TclWordKnownAtCompileTime(tokenPtr, cmdObj);
+
+    /* Is this a command we should (try to) compile with a compileProc ? */
+    if (cmdKnown && !(iPtr->flags & DONT_COMPILE_CMDS_INLINE)) {
+	cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, cmdObj);
+	if (cmdPtr) {
 	    /*
-	     * Each iteration of the following loop compiles one word from the
-	     * command.
+	     * Found a command.  Test the ways we can be told not to attempt
+	     * to compile it.
 	     */
+	    if ((cmdPtr->compileProc == NULL)
+		    || (cmdPtr->nsPtr->flags & NS_SUPPRESS_COMPILATION)
+		    || (cmdPtr->flags & CMD_HAS_EXEC_TRACES)) {
+		cmdPtr = NULL;
+	    }
+	}
+	if (cmdPtr && !(cmdPtr->flags & CMD_COMPILES_EXPANDED)) {
+	    expand = ExpandRequested(parsePtr->tokenPtr, parsePtr->numWords);
+	    if (expand) {
+		/* We need to expand, but compileProc cannot. */
+		cmdPtr = NULL;
+	    }
+	}
+    }
 
-	    for (wordIdx = 0, tokenPtr = parsePtr->tokenPtr;
-		    wordIdx < parsePtr->numWords; wordIdx++,
-		    tokenPtr += tokenPtr->numComponents + 1) {
+    /* If cmdPtr != NULL, we will try to call cmdPtr->compileProc */
+    if (cmdPtr) {
+	code = CompileCmdCompileProc(interp, parsePtr, cmdPtr, envPtr);
+    }
 
-		envPtr->line = eclPtr->loc[wlineat].line[wordIdx];
-		envPtr->clNext = eclPtr->loc[wlineat].next[wordIdx];
-		if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-		    /*
-		     * The word is not a simple string of characters.
-		     */
+    if (code == TCL_ERROR) {
+	if (expand < 0) {
+	    expand = ExpandRequested(parsePtr->tokenPtr, parsePtr->numWords);
+	}
 
-		    TclCompileTokens(interp, tokenPtr+1,
-			    tokenPtr->numComponents, envPtr);
-		    if (tokenPtr->type == TCL_TOKEN_EXPAND_WORD) {
-			TclEmitInstInt4(INST_EXPAND_STKTOP,
-				envPtr->currStackDepth, envPtr);
-		    }
-		    continue;
-		}
+	if (expand) {
+	    CompileExpanded(interp, parsePtr->tokenPtr,
+		    cmdKnown ? cmdObj : NULL, parsePtr->numWords, envPtr);
+	} else {
+	    TclCompileInvocation(interp, parsePtr->tokenPtr,
+		    cmdKnown ? cmdObj : NULL, parsePtr->numWords, envPtr);
+	}
+    }
 
-		/*
-		 * This is a simple string of literal characters (i.e. we know
-		 * it absolutely and can use it directly). If this is the
-		 * first word and the command has a compile procedure, let it
-		 * compile the command.
-		 */
+    Tcl_DecrRefCount(cmdObj);
 
-		if ((wordIdx == 0) && !expand) {
-		    /*
-		     * We copy the string before trying to find the command by
-		     * name. We used to modify the string in place, but this
-		     * is not safe because the name resolution handlers could
-		     * have side effects that rely on the unmodified string.
-		     */
+    TclEmitOpcode(INST_POP, envPtr);
+    EnterCmdExtentData(envPtr, cmdIdx,
+	    parsePtr->term - parsePtr->commandStart,
+	    (envPtr->codeNext-envPtr->codeStart) - startCodeOffset);
 
-		    TclDStringClear(&ds);
-		    TclDStringAppendToken(&ds, &tokenPtr[1]);
-
-		    cmdPtr = (Command *) Tcl_FindCommand(interp,
-			    Tcl_DStringValue(&ds),
-			    (Tcl_Namespace *) cmdNsPtr, /*flags*/ 0);
-
-		    if ((cmdPtr != NULL)
-			    && (cmdPtr->compileProc != NULL)
-			    && !(cmdPtr->nsPtr->flags&NS_SUPPRESS_COMPILATION)
-			    && !(cmdPtr->flags & CMD_HAS_EXEC_TRACES)
-			    && !(iPtr->flags & DONT_COMPILE_CMDS_INLINE)) {
-			int savedNumCmds = envPtr->numCommands;
-			unsigned savedCodeNext =
-				envPtr->codeNext - envPtr->codeStart;
-			int update = 0, code;
-
-			/*
-			 * Mark the start of the command; the proper bytecode
-			 * length will be updated later. There is no need to
-			 * do this for the first bytecode in the compile env,
-			 * as the check is done before calling
-			 * TclNRExecuteByteCode(). Do emit an INST_START_CMD in
-			 * special cases where the first bytecode is in a
-			 * loop, to insure that the corresponding command is
-			 * counted properly. Compilers for commands able to
-			 * produce such a beast (currently 'while 1' only) set
-			 * envPtr->atCmdStart to 0 in order to signal this
-			 * case. [Bug 1752146]
-			 *
-			 * Note that the environment is initialised with
-			 * atCmdStart=1 to avoid emitting ISC for the first
-			 * command.
-			 */
-
-			if (envPtr->atCmdStart) {
-			    if (savedCodeNext != 0) {
-				/*
-				 * Increase the number of commands being
-				 * started at the current point. Note that
-				 * this depends on the exact layout of the
-				 * INST_START_CMD's operands, so be careful!
-				 */
-
-				unsigned char *fixPtr = envPtr->codeNext - 4;
-
-				TclStoreInt4AtPtr(TclGetUInt4AtPtr(fixPtr)+1,
-					fixPtr);
-			    }
-			} else {
-			    TclEmitInstInt4(INST_START_CMD, 0, envPtr);
-			    TclEmitInt4(1, envPtr);
-			    update = 1;
-			}
-
-			code = cmdPtr->compileProc(interp, parsePtr, cmdPtr,
-				envPtr);
-
-			if (code == TCL_OK) {
-			    if (update) {
-				/*
-				 * Fix the bytecode length.
-				 */
-
-				unsigned char *fixPtr = envPtr->codeStart
-					+ savedCodeNext + 1;
-				unsigned fixLen = envPtr->codeNext
-					- envPtr->codeStart - savedCodeNext;
-
-				TclStoreInt4AtPtr(fixLen, fixPtr);
-			    }
-			    goto finishCommand;
-			}
-
-			if (envPtr->atCmdStart && savedCodeNext != 0) {
-			    /*
-			     * Decrease the number of commands being started
-			     * at the current point. Note that this depends on
-			     * the exact layout of the INST_START_CMD's
-			     * operands, so be careful!
-			     */
-
-			    unsigned char *fixPtr = envPtr->codeNext - 4;
-
-			    TclStoreInt4AtPtr(TclGetUInt4AtPtr(fixPtr)-1,
-				    fixPtr);
-			}
-
-			/*
-			 * Restore numCommands and codeNext to their correct
-			 * values, removing any commands compiled before the
-			 * failure to produce bytecode got reported. [Bugs
-			 * 705406 and 735055]
-			 */
-
-			envPtr->numCommands = savedNumCmds;
-			envPtr->codeNext = envPtr->codeStart + savedCodeNext;
-		    }
+    /*
+     * TIP #280: Free full form of per-word line data and insert the reduced
+     * form now
+     */
 
-		    /*
-		     * No compile procedure so push the word. If the command
-		     * was found, push a CmdName object to reduce runtime
-		     * lookups. Mark this as a command name literal to reduce
-		     * shimmering. 
-		     */
+    envPtr->line = cmdLine;
+    envPtr->clNext = clNext;
+    ckfree(eclPtr->loc[wlineat].line);
+    ckfree(eclPtr->loc[wlineat].next);
+    eclPtr->loc[wlineat].line = wlines;
+    eclPtr->loc[wlineat].next = NULL;
 
-		    objIndex = TclRegisterNewCmdLiteral(envPtr,
-			    tokenPtr[1].start, tokenPtr[1].size);
-		    if (cmdPtr != NULL) {
-			TclSetCmdNameObj(interp,
-				envPtr->literalArrayPtr[objIndex].objPtr,
-				cmdPtr);
-		    }
-		} else {
-		    /*
-		     * Simple argument word of a command. We reach this if and
-		     * only if the command word was not compiled for whatever
-		     * reason. Register the literal's location for use by
-		     * uplevel, etc. commands, should they encounter it
-		     * unmodified. We care only if the we are in a context
-		     * which already allows absolute counting.
-		     */
+    TclCheckStackDepth(depth, envPtr);
+    return cmdIdx;
+}
 
-		    objIndex = TclRegisterNewLiteral(envPtr,
-			    tokenPtr[1].start, tokenPtr[1].size);
+void
+TclCompileScript(
+    Tcl_Interp *interp,		/* Used for error and status reporting. Also
+				 * serves as context for finding and compiling
+				 * commands. May not be NULL. */
+    const char *script,		/* The source script to compile. */
+    int numBytes,		/* Number of bytes in script. If < 0, the
+				 * script consists of all bytes up to the
+				 * first null character. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    int lastCmdIdx = -1;	/* Index into envPtr->cmdMapPtr of the last
+				 * command this routine compiles into bytecode.
+				 * Initial value of -1 indicates this routine
+				 * has not yet generated any bytecode. */
+    const char *p = script;	/* Where we are in our compile. */
+    int depth = TclGetStackDepth(envPtr);
+
+    if (envPtr->iPtr == NULL) {
+	Tcl_Panic("TclCompileScript() called on uninitialized CompileEnv");
+    }
 
-		    if (envPtr->clNext) {
-			TclContinuationsEnterDerived(
-				envPtr->literalArrayPtr[objIndex].objPtr,
-				tokenPtr[1].start - envPtr->source,
-				eclPtr->loc[wlineat].next[wordIdx]);
-		    }
-		}
-		TclEmitPush(objIndex, envPtr);
-	    } /* for loop */
+    /* Each iteration compiles one command from the script. */
 
+    while (numBytes > 0) {
+	Tcl_Parse parse;
+	const char *next;
+
+	if (TCL_OK != Tcl_ParseCommand(interp, p, numBytes, 0, &parse)) {
 	    /*
-	     * Emit an invoke instruction for the command. We skip this if a
-	     * compile procedure was found for the command.
+	     * Compile bytecodes to report the parse error at runtime.
 	     */
 
-	    if (expand) {
-		/*
-		 * The stack depth during argument expansion can only be
-		 * managed at runtime, as the number of elements in the
-		 * expanded lists is not known at compile time. We adjust here
-		 * the stack depth estimate so that it is correct after the
-		 * command with expanded arguments returns.
-		 *
-		 * The end effect of this command's invocation is that all the
-		 * words of the command are popped from the stack, and the
-		 * result is pushed: the stack top changes by (1-wordIdx).
-		 *
-		 * Note that the estimates are not correct while the command
-		 * is being prepared and run, INST_EXPAND_STKTOP is not
-		 * stack-neutral in general.
-		 */
+	    Tcl_LogCommandInfo(interp, script, parse.commandStart,
+		    parse.term + 1 - parse.commandStart);
+	    TclCompileSyntaxError(interp, envPtr);
+	    return;
+	}
 
-		TclEmitOpcode(INST_INVOKE_EXPANDED, envPtr);
-		TclAdjustStackDepth((1-wordIdx), envPtr);
-	    } else if (wordIdx > 0) {
-		/*
-		 * Save PC -> command map for the TclArgumentBC* functions.
-		 */
+#ifdef TCL_COMPILE_DEBUG
+	/*
+	 * If tracing, print a line for each top level command compiled.
+	 * TODO: Suppress when numWords == 0 ?
+	 */
 
-		int isnew;
-		Tcl_HashEntry *hePtr = Tcl_CreateHashEntry(&eclPtr->litInfo,
-			INT2PTR(envPtr->codeNext - envPtr->codeStart),
-			&isnew);
+	if ((tclTraceCompile >= 1) && (envPtr->procPtr == NULL)) {
+	    int commandLength = parse.term - parse.commandStart;
+	    fprintf(stdout, "  Compiling: ");
+	    TclPrintSource(stdout, parse.commandStart,
+		    TclMin(commandLength, 55));
+	    fprintf(stdout, "\n");
+	}
+#endif
 
-		Tcl_SetHashValue(hePtr, INT2PTR(wlineat));
-		if (wordIdx <= 255) {
-		    TclEmitInstInt1(INST_INVOKE_STK1, wordIdx, envPtr);
-		} else {
-		    TclEmitInstInt4(INST_INVOKE_STK4, wordIdx, envPtr);
-		}
-	    }
+	/*
+	 * TIP #280: Count newlines before the command start.
+	 * (See test info-30.33).
+	 */
 
-	    /*
-	     * Update the compilation environment structure and record the
-	     * offsets of the source and code for the command.
-	     */
+	TclAdvanceLines(&envPtr->line, p, parse.commandStart);
+	TclAdvanceContinuations(&envPtr->line, &envPtr->clNext,
+		parse.commandStart - envPtr->source);
 
-	finishCommand:
-	    EnterCmdExtentData(envPtr, currCmdIndex, commandLength,
-		    (envPtr->codeNext-envPtr->codeStart) - startCodeOffset);
-	    isFirstCmd = 0;
+	/*
+	 * Advance parser to the next command in the script.
+	 */
 
+	next = parse.commandStart + parse.commandSize;
+	numBytes -= next - p;
+	p = next;
+
+	if (parse.numWords == 0) {
 	    /*
-	     * TIP #280: Free full form of per-word line data and insert the
-	     * reduced form now
+	     * The "command" parsed has no words.  In this case we can skip
+	     * the rest of the loop body.  With no words, clearly
+	     * CompileCommandTokens() has nothing to do.  Since the parser
+	     * aggressively sucks up leading comment and white space,
+	     * including newlines, parse.commandStart must be pointing at
+	     * either the end of script, or a command-terminating semi-colon.
+	     * In either case, the TclAdvance*() calls have nothing to do.
+	     * Finally, when no words are parsed, no tokens have been
+	     * allocated at parse.tokenPtr so there's also nothing for
+	     * Tcl_FreeParse() to do.
+	     *
+	     * The advantage of this shortcut is that CompileCommandTokens()
+	     * can be written with an assumption that parse.numWords > 0, with
+	     * the implication the CCT() always generates bytecode.
 	     */
+	    continue;
+	}
 
-	    ckfree(eclPtr->loc[wlineat].line);
-	    ckfree(eclPtr->loc[wlineat].next);
-	    eclPtr->loc[wlineat].line = wlines;
-	    eclPtr->loc[wlineat].next = NULL;
-	} /* end if parsePtr->numWords > 0 */
+	lastCmdIdx = CompileCommandTokens(interp, &parse, envPtr);
 
 	/*
-	 * Advance to the next command in the script.
+	 * TIP #280: Track lines in the just compiled command.
 	 */
 
-	next = parsePtr->commandStart + parsePtr->commandSize;
-	bytesLeft -= next - p;
-	p = next;
+	TclAdvanceLines(&envPtr->line, parse.commandStart, p);
+	TclAdvanceContinuations(&envPtr->line, &envPtr->clNext,
+		p - envPtr->source);
+	Tcl_FreeParse(&parse);
+    }
 
+    if (lastCmdIdx == -1) {
 	/*
-	 * TIP #280: Track lines in the just compiled command.
+	 * Compiling the script yielded no bytecode.  The script must be all
+	 * whitespace, comments, and empty commands.  Such scripts are defined
+	 * to successfully produce the empty string result, so we emit the
+	 * simple bytecode that makes that happen.
 	 */
 
-	TclAdvanceLines(&cmdLine, parsePtr->commandStart, p);
-	TclAdvanceContinuations(&cmdLine, &clNext, p - envPtr->source);
-	Tcl_FreeParse(parsePtr);
-    } while (bytesLeft > 0);
-
-    /*
-     * TIP #280: Bring the line counts in the CompEnv up to date.
-     *	See tests info-30.33,34,35 .
-     */
-
-    envPtr->line = cmdLine;
-    envPtr->clNext = clNext;
-
-    /*
-     * If the source script yielded no instructions (e.g., if it was empty),
-     * push an empty string as the command's result.
-     */
+	PushStringLiteral(envPtr, "");
+    } else {
+	/*
+	 * We compiled at least one command to bytecode.  The routine
+	 * CompileCommandTokens() follows the bytecode of each compiled
+	 * command with an INST_POP, so that stack balance is maintained when
+	 * several commands are in sequence.  (The result of each command is
+	 * thrown away before moving on to the next command).  For the last
+	 * command compiled, we need to undo that INST_POP so that the result
+	 * of the last command becomes the result of the script.  The code
+	 * here removes that trailing INST_POP.
+	 */
 
-    if (envPtr->codeNext == entryCodeNext) {
-	TclEmitPush(TclRegisterNewLiteral(envPtr, "", 0), envPtr);
+	envPtr->cmdMapPtr[lastCmdIdx].numCodeBytes--;
+	envPtr->codeNext--;
+	envPtr->currStackDepth++;
     }
-
-    envPtr->numSrcBytes = p - script;
-    TclStackFree(interp, parsePtr);
-    Tcl_DStringFree(&ds);
+    TclCheckStackDepth(depth+1, envPtr);
 }
 
 /*
@@ -1960,7 +2295,7 @@ TclCompileVarSubst(
 	localVar = TclFindCompiledLocal(name, nameBytes, localVarName, envPtr);
     }
     if (localVar < 0) {
-	TclEmitPush(TclRegisterNewLiteral(envPtr, name, nameBytes), envPtr);
+	PushLiteral(envPtr, name, nameBytes);
     }
 
     /*
@@ -1972,7 +2307,7 @@ TclCompileVarSubst(
 
     if (tokenPtr->numComponents == 1) {
 	if (localVar < 0) {
-	    TclEmitOpcode(INST_LOAD_SCALAR_STK, envPtr);
+	    TclEmitOpcode(INST_LOAD_STK, envPtr);
 	} else if (localVar <= 255) {
 	    TclEmitInstInt1(INST_LOAD_SCALAR1, localVar, envPtr);
 	} else {
@@ -2002,11 +2337,12 @@ TclCompileTokens(
     Tcl_DString textBuffer;	/* Holds concatenated chars from adjacent
 				 * TCL_TOKEN_TEXT, TCL_TOKEN_BS tokens. */
     char buffer[TCL_UTF_MAX];
-    int i, numObjsToConcat, length;
+    int i, numObjsToConcat, length, adjust;
     unsigned char *entryCodeNext = envPtr->codeNext;
 #define NUM_STATIC_POS 20
     int isLiteral, maxNumCL, numCL;
     int *clPosition = NULL;
+    int depth = TclGetStackDepth(envPtr);
 
     /*
      * For the handling of continuation lines in literals we first check if
@@ -2039,6 +2375,7 @@ TclCompileTokens(
 	clPosition = ckalloc(maxNumCL * sizeof(int));
     }
 
+    adjust = 0;
     Tcl_DStringInit(&textBuffer);
     numObjsToConcat = 0;
     for ( ;  count > 0;  count--, tokenPtr++) {
@@ -2082,6 +2419,7 @@ TclCompileTokens(
 		    clPosition[numCL] = clPos;
 		    numCL ++;
 		}
+		adjust++;
 	    }
 	    break;
 
@@ -2098,15 +2436,16 @@ TclCompileTokens(
 		Tcl_DStringFree(&textBuffer);
 
 		if (numCL) {
-		    TclContinuationsEnter(
-			    envPtr->literalArrayPtr[literal].objPtr, numCL,
-			    clPosition);
+		    TclContinuationsEnter(TclFetchLiteral(envPtr, literal),
+			    numCL, clPosition);
 		}
 		numCL = 0;
 	    }
 
+	    envPtr->line += adjust;
 	    TclCompileScript(interp, tokenPtr->start+1,
 		    tokenPtr->size-2, envPtr);
+	    envPtr->line -= adjust;
 	    numObjsToConcat++;
 	    break;
 
@@ -2146,7 +2485,7 @@ TclCompileTokens(
 	TclEmitPush(literal, envPtr);
 	numObjsToConcat++;
 	if (numCL) {
-	    TclContinuationsEnter(envPtr->literalArrayPtr[literal].objPtr,
+	    TclContinuationsEnter(TclFetchLiteral(envPtr, literal),
 		    numCL, clPosition);
 	}
 	numCL = 0;
@@ -2157,11 +2496,11 @@ TclCompileTokens(
      */
 
     while (numObjsToConcat > 255) {
-	TclEmitInstInt1(INST_CONCAT1, 255, envPtr);
+	TclEmitInstInt1(INST_STR_CONCAT1, 255, envPtr);
 	numObjsToConcat -= 254;	/* concat pushes 1 obj, the result */
     }
     if (numObjsToConcat > 1) {
-	TclEmitInstInt1(INST_CONCAT1, numObjsToConcat, envPtr);
+	TclEmitInstInt1(INST_STR_CONCAT1, numObjsToConcat, envPtr);
     }
 
     /*
@@ -2169,7 +2508,7 @@ TclCompileTokens(
      */
 
     if (envPtr->codeNext == entryCodeNext) {
-	TclEmitPush(TclRegisterNewLiteral(envPtr, "", 0), envPtr);
+	PushStringLiteral(envPtr, "");
     }
     Tcl_DStringFree(&textBuffer);
 
@@ -2181,6 +2520,7 @@ TclCompileTokens(
     if (maxNumCL) {
 	ckfree(clPosition);
     }
+    TclCheckStackDepth(depth+1, envPtr);
 }
 
 /*
@@ -2228,7 +2568,7 @@ TclCompileCmdWord(
 	 */
 
 	TclCompileTokens(interp, tokenPtr, count, envPtr);
-	TclEmitOpcode(INST_EVAL_STK, envPtr);
+	TclEmitInvoke(envPtr, INST_EVAL_STK);
     }
 }
 
@@ -2284,19 +2624,19 @@ TclCompileExprWords(
 
     wordPtr = tokenPtr;
     for (i = 0;  i < numWords;  i++) {
-	TclCompileTokens(interp, wordPtr+1, wordPtr->numComponents, envPtr);
+	CompileTokens(envPtr, wordPtr, interp);
 	if (i < (numWords - 1)) {
-	    TclEmitPush(TclRegisterNewLiteral(envPtr, " ", 1), envPtr);
+	    PushStringLiteral(envPtr, " ");
 	}
 	wordPtr += wordPtr->numComponents + 1;
     }
     concatItems = 2*numWords - 1;
     while (concatItems > 255) {
-	TclEmitInstInt1(INST_CONCAT1, 255, envPtr);
+	TclEmitInstInt1(INST_STR_CONCAT1, 255, envPtr);
 	concatItems -= 254;
     }
     if (concatItems > 1) {
-	TclEmitInstInt1(INST_CONCAT1, concatItems, envPtr);
+	TclEmitInstInt1(INST_STR_CONCAT1, concatItems, envPtr);
     }
     TclEmitOpcode(INST_EXPR_STK, envPtr);
 }
@@ -2330,21 +2670,17 @@ TclCompileNoOp(
 {
     Tcl_Token *tokenPtr;
     int i;
-    int savedStackDepth = envPtr->currStackDepth;
 
     tokenPtr = parsePtr->tokenPtr;
     for (i = 1; i < parsePtr->numWords; i++) {
 	tokenPtr = tokenPtr + tokenPtr->numComponents + 1;
-	envPtr->currStackDepth = savedStackDepth;
 
 	if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
-	    TclCompileTokens(interp, tokenPtr+1, tokenPtr->numComponents,
-		    envPtr);
+	    CompileTokens(envPtr, tokenPtr, interp);
 	    TclEmitOpcode(INST_POP, envPtr);
 	}
     }
-    envPtr->currStackDepth = savedStackDepth;
-    TclEmitPush(TclRegisterNewLiteral(envPtr, "", 0), envPtr);
+    PushStringLiteral(envPtr, "");
     return TCL_OK;
 }
 
@@ -2393,6 +2729,10 @@ TclInitByteCodeObj(
     int i, isNew;
     Interp *iPtr;
 
+    if (envPtr->iPtr == NULL) {
+	Tcl_Panic("TclInitByteCodeObj() called on uninitialized CompileEnv");
+    }
+
     iPtr = envPtr->iPtr;
 
     codeBytes = envPtr->codeNext - envPtr->codeStart;
@@ -2450,7 +2790,9 @@ TclInitByteCodeObj(
     p += TCL_ALIGN(codeBytes);		/* align object array */
     codePtr->objArrayPtr = (Tcl_Obj **) p;
     for (i = 0;  i < numLitObjects;  i++) {
-	if (objPtr == envPtr->literalArrayPtr[i].objPtr) {
+	Tcl_Obj *fetched = TclFetchLiteral(envPtr, i);
+
+	if (objPtr == fetched) {
 	    /*
 	     * Prevent circular reference where the bytecode intrep of
 	     * a value contains a literal which is that same value.
@@ -2467,9 +2809,9 @@ TclInitByteCodeObj(
 
 	    codePtr->objArrayPtr[i] = Tcl_NewStringObj(bytes, numBytes);
 	    Tcl_IncrRefCount(codePtr->objArrayPtr[i]);
-	    Tcl_DecrRefCount(objPtr);
+	    TclReleaseLiteral((Tcl_Interp *)iPtr, objPtr);
 	} else {
-	    codePtr->objArrayPtr[i] = envPtr->literalArrayPtr[i].objPtr;
+	    codePtr->objArrayPtr[i] = fetched;
 	}
     }
 
@@ -2518,7 +2860,7 @@ TclInitByteCodeObj(
      */
 
     TclFreeIntRep(objPtr);
-    objPtr->internalRep.otherValuePtr = codePtr;
+    objPtr->internalRep.twoPtrValue.ptr1 = codePtr;
     objPtr->typePtr = &tclByteCodeType;
 
     /*
@@ -2530,6 +2872,9 @@ TclInitByteCodeObj(
 	    &isNew), envPtr->extCmdMapPtr);
     envPtr->extCmdMapPtr = NULL;
 
+    /* We've used up the CompileEnv.  Mark as uninitialized. */
+    envPtr->iPtr = NULL;
+
     codePtr->localCachePtr = NULL;
 }
 
@@ -2944,6 +3289,7 @@ TclCreateExceptRange(
 				 * new ExceptionRange structure. */
 {
     register ExceptionRange *rangePtr;
+    register ExceptionAux *auxPtr;
     int index = envPtr->exceptArrayNext;
 
     if (index >= envPtr->exceptArrayEnd) {
@@ -2955,12 +3301,16 @@ TclCreateExceptRange(
 
 	size_t currBytes =
 		envPtr->exceptArrayNext * sizeof(ExceptionRange);
+	size_t currBytes2 = envPtr->exceptArrayNext * sizeof(ExceptionAux);
 	int newElems = 2*envPtr->exceptArrayEnd;
 	size_t newBytes = newElems * sizeof(ExceptionRange);
+	size_t newBytes2 = newElems * sizeof(ExceptionAux);
 
 	if (envPtr->mallocedExceptArray) {
 	    envPtr->exceptArrayPtr =
 		    ckrealloc(envPtr->exceptArrayPtr, newBytes);
+	    envPtr->exceptAuxArrayPtr =
+		    ckrealloc(envPtr->exceptAuxArrayPtr, newBytes2);
 	} else {
 	    /*
 	     * envPtr->exceptArrayPtr isn't a ckalloc'd pointer, so we must
@@ -2968,9 +3318,12 @@ TclCreateExceptRange(
 	     */
 
 	    ExceptionRange *newPtr = ckalloc(newBytes);
+	    ExceptionAux *newPtr2 = ckalloc(newBytes2);
 
 	    memcpy(newPtr, envPtr->exceptArrayPtr, currBytes);
+	    memcpy(newPtr2, envPtr->exceptAuxArrayPtr, currBytes2);
 	    envPtr->exceptArrayPtr = newPtr;
+	    envPtr->exceptAuxArrayPtr = newPtr2;
 	    envPtr->mallocedExceptArray = 1;
 	}
 	envPtr->exceptArrayEnd = newElems;
@@ -2985,10 +3338,294 @@ TclCreateExceptRange(
     rangePtr->breakOffset = -1;
     rangePtr->continueOffset = -1;
     rangePtr->catchOffset = -1;
+    auxPtr = &envPtr->exceptAuxArrayPtr[index];
+    auxPtr->supportsContinue = 1;
+    auxPtr->stackDepth = envPtr->currStackDepth;
+    auxPtr->expandTarget = envPtr->expandCount;
+    auxPtr->expandTargetDepth = -1;
+    auxPtr->numBreakTargets = 0;
+    auxPtr->breakTargets = NULL;
+    auxPtr->allocBreakTargets = 0;
+    auxPtr->numContinueTargets = 0;
+    auxPtr->continueTargets = NULL;
+    auxPtr->allocContinueTargets = 0;
     return index;
 }
 
 /*
+ * ---------------------------------------------------------------------
+ *
+ * TclGetInnermostExceptionRange --
+ *
+ *	Returns the innermost exception range that covers the current code
+ *	creation point, and (optionally) the stack depth that is expected at
+ *	that point. Relies on the fact that the range has a numCodeBytes = -1
+ *	when it is being populated and that inner ranges come after outer
+ *	ranges.
+ *
+ * ---------------------------------------------------------------------
+ */
+
+ExceptionRange *
+TclGetInnermostExceptionRange(
+    CompileEnv *envPtr,
+    int returnCode,
+    ExceptionAux **auxPtrPtr)
+{
+    int exnIdx = -1, i;
+
+    for (i=0 ; i<envPtr->exceptArrayNext ; i++) {
+	ExceptionRange *rangePtr = &envPtr->exceptArrayPtr[i];
+
+	if (CurrentOffset(envPtr) >= rangePtr->codeOffset &&
+		(rangePtr->numCodeBytes == -1 || CurrentOffset(envPtr) <
+			rangePtr->codeOffset+rangePtr->numCodeBytes) &&
+		(returnCode != TCL_CONTINUE ||
+			envPtr->exceptAuxArrayPtr[i].supportsContinue)) {
+	    exnIdx = i;
+	}
+    }
+    if (exnIdx == -1) {
+	return NULL;
+    }
+    if (auxPtrPtr) {
+	*auxPtrPtr = &envPtr->exceptAuxArrayPtr[exnIdx];
+    }
+    return &envPtr->exceptArrayPtr[exnIdx];
+}
+
+/*
+ * ---------------------------------------------------------------------
+ *
+ * TclAddLoopBreakFixup, TclAddLoopContinueFixup --
+ *
+ *	Adds a place that wants to break/continue to the loop exception range
+ *	tracking that will be fixed up once the loop can be finalized. These
+ *	functions will generate an INST_JUMP4 that will be fixed up during the
+ *	loop finalization.
+ *
+ * ---------------------------------------------------------------------
+ */
+
+void
+TclAddLoopBreakFixup(
+    CompileEnv *envPtr,
+    ExceptionAux *auxPtr)
+{
+    int range = auxPtr - envPtr->exceptAuxArrayPtr;
+
+    if (envPtr->exceptArrayPtr[range].type != LOOP_EXCEPTION_RANGE) {
+	Tcl_Panic("trying to add 'break' fixup to full exception range");
+    }
+
+    if (++auxPtr->numBreakTargets > auxPtr->allocBreakTargets) {
+	auxPtr->allocBreakTargets *= 2;
+	auxPtr->allocBreakTargets += 2;
+	if (auxPtr->breakTargets) {
+	    auxPtr->breakTargets = ckrealloc(auxPtr->breakTargets,
+		    sizeof(int) * auxPtr->allocBreakTargets);
+	} else {
+	    auxPtr->breakTargets =
+		    ckalloc(sizeof(int) * auxPtr->allocBreakTargets);
+	}
+    }
+    auxPtr->breakTargets[auxPtr->numBreakTargets - 1] = CurrentOffset(envPtr);
+    TclEmitInstInt4(INST_JUMP4, 0, envPtr);
+}
+
+void
+TclAddLoopContinueFixup(
+    CompileEnv *envPtr,
+    ExceptionAux *auxPtr)
+{
+    int range = auxPtr - envPtr->exceptAuxArrayPtr;
+
+    if (envPtr->exceptArrayPtr[range].type != LOOP_EXCEPTION_RANGE) {
+	Tcl_Panic("trying to add 'continue' fixup to full exception range");
+    }
+
+    if (++auxPtr->numContinueTargets > auxPtr->allocContinueTargets) {
+	auxPtr->allocContinueTargets *= 2;
+	auxPtr->allocContinueTargets += 2;
+	if (auxPtr->continueTargets) {
+	    auxPtr->continueTargets = ckrealloc(auxPtr->continueTargets,
+		    sizeof(int) * auxPtr->allocContinueTargets);
+	} else {
+	    auxPtr->continueTargets =
+		    ckalloc(sizeof(int) * auxPtr->allocContinueTargets);
+	}
+    }
+    auxPtr->continueTargets[auxPtr->numContinueTargets - 1] =
+	    CurrentOffset(envPtr);
+    TclEmitInstInt4(INST_JUMP4, 0, envPtr);
+}
+
+/*
+ * ---------------------------------------------------------------------
+ *
+ * TclCleanupStackForBreakContinue --
+ *
+ *	Ditch the extra elements from the auxiliary stack and the main stack.
+ *	How to do this exactly depends on whether there are any elements on
+ *	the auxiliary stack to pop.
+ *
+ * ---------------------------------------------------------------------
+ */
+
+void
+TclCleanupStackForBreakContinue(
+    CompileEnv *envPtr,
+    ExceptionAux *auxPtr)
+{
+    int savedStackDepth = envPtr->currStackDepth;
+    int toPop = envPtr->expandCount - auxPtr->expandTarget;
+
+    if (toPop > 0) {
+	while (toPop --> 0) {
+	    TclEmitOpcode(INST_EXPAND_DROP, envPtr);
+	}
+	TclAdjustStackDepth(auxPtr->expandTargetDepth - envPtr->currStackDepth,
+		envPtr);
+	envPtr->currStackDepth = auxPtr->expandTargetDepth;
+    }
+    toPop = envPtr->currStackDepth - auxPtr->stackDepth;
+    while (toPop --> 0) {
+	TclEmitOpcode(INST_POP, envPtr);
+    }
+    envPtr->currStackDepth = savedStackDepth;
+}
+
+/*
+ * ---------------------------------------------------------------------
+ *
+ * StartExpanding --
+ *
+ *	Pushes an INST_EXPAND_START and does some additional housekeeping so
+ *	that the [break] and [continue] compilers can use an exception-free
+ *	issue to discard it.
+ *
+ * ---------------------------------------------------------------------
+ */
+
+static void
+StartExpanding(
+    CompileEnv *envPtr)
+{
+    int i;
+
+    TclEmitOpcode(INST_EXPAND_START, envPtr);
+
+    /*
+     * Update inner exception ranges with information about the environment
+     * where this expansion started.
+     */
+
+    for (i=0 ; i<envPtr->exceptArrayNext ; i++) {
+	ExceptionRange *rangePtr = &envPtr->exceptArrayPtr[i];
+	ExceptionAux *auxPtr = &envPtr->exceptAuxArrayPtr[i];
+
+	/*
+	 * Ignore loops unless they're still being built.
+	 */
+
+	if (rangePtr->codeOffset > CurrentOffset(envPtr)) {
+	    continue;
+	}
+	if (rangePtr->numCodeBytes != -1) {
+	    continue;
+	}
+
+	/*
+	 * Adequate condition: further out loops and further in exceptions
+	 * don't actually need this information.
+	 */
+
+	if (auxPtr->expandTarget == envPtr->expandCount) {
+	    auxPtr->expandTargetDepth = envPtr->currStackDepth;
+	}
+    }
+
+    /*
+     * There's now one more expansion being processed on the auxiliary stack.
+     */
+
+    envPtr->expandCount++;
+}
+
+/*
+ * ---------------------------------------------------------------------
+ *
+ * TclFinalizeLoopExceptionRange --
+ *
+ *	Finalizes a loop exception range, binding the registered [break] and
+ *	[continue] implementations so that they jump to the correct place.
+ *	Note that this must only be called after *all* the exception range
+ *	target offsets have been set.
+ *
+ * ---------------------------------------------------------------------
+ */
+
+void
+TclFinalizeLoopExceptionRange(
+    CompileEnv *envPtr,
+    int range)
+{
+    ExceptionRange *rangePtr = &envPtr->exceptArrayPtr[range];
+    ExceptionAux *auxPtr = &envPtr->exceptAuxArrayPtr[range];
+    int i, offset;
+    unsigned char *site;
+
+    if (rangePtr->type != LOOP_EXCEPTION_RANGE) {
+	Tcl_Panic("trying to finalize a loop exception range");
+    }
+
+    /*
+     * Do the jump fixups. Note that these are always issued as INST_JUMP4 so
+     * there is no need to fuss around with updating code offsets.
+     */
+
+    for (i=0 ; i<auxPtr->numBreakTargets ; i++) {
+	site = envPtr->codeStart + auxPtr->breakTargets[i];
+	offset = rangePtr->breakOffset - auxPtr->breakTargets[i];
+	TclUpdateInstInt4AtPc(INST_JUMP4, offset, site);
+    }
+    for (i=0 ; i<auxPtr->numContinueTargets ; i++) {
+	site = envPtr->codeStart + auxPtr->continueTargets[i];
+	if (rangePtr->continueOffset == -1) {
+	    int j;
+
+	    /*
+	     * WTF? Can't bind, so revert to an INST_CONTINUE. Not enough
+	     * space to do anything else.
+	     */
+
+	    *site = INST_CONTINUE;
+	    for (j=0 ; j<4 ; j++) {
+		*++site = INST_NOP;
+	    }
+	} else {
+	    offset = rangePtr->continueOffset - auxPtr->continueTargets[i];
+	    TclUpdateInstInt4AtPc(INST_JUMP4, offset, site);
+	}
+    }
+
+    /*
+     * Drop the arrays we were holding the only reference to.
+     */
+
+    if (auxPtr->breakTargets) {
+	ckfree(auxPtr->breakTargets);
+	auxPtr->breakTargets = NULL;
+	auxPtr->numBreakTargets = 0;
+    }
+    if (auxPtr->continueTargets) {
+	ckfree(auxPtr->continueTargets);
+	auxPtr->continueTargets = NULL;
+	auxPtr->numContinueTargets = 0;
+    }
+}
+
+/*
  *----------------------------------------------------------------------
  *
  * TclCreateAuxData --
@@ -3348,70 +3985,215 @@ TclFixupForwardJump(
 	}
     }
 
+    for (k = 0 ; k < envPtr->exceptArrayNext ; k++) {
+	ExceptionAux *auxPtr = &envPtr->exceptAuxArrayPtr[k];
+	int i;
+
+	for (i=0 ; i<auxPtr->numBreakTargets ; i++) {
+	    if (jumpFixupPtr->codeOffset < auxPtr->breakTargets[i]) {
+		auxPtr->breakTargets[i] += 3;
+	    }
+	}
+	for (i=0 ; i<auxPtr->numContinueTargets ; i++) {
+	    if (jumpFixupPtr->codeOffset < auxPtr->continueTargets[i]) {
+		auxPtr->continueTargets[i] += 3;
+	    }
+	}
+    }
+
+    return 1;			/* the jump was grown */
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclEmitInvoke --
+ *
+ *	Emit one of the invoke-related instructions, wrapping it if necessary
+ *	in code that ensures that any break or continue operation passing
+ *	through it gets the stack unwinding correct, converting it into an
+ *	internal jump if in an appropriate context.
+ *
+ * Results:
+ *	None
+ *
+ * Side effects:
+ *	Issues the jump with all correct stack management. May create another
+ *	loop exception range; pointers to ExceptionRange and ExceptionAux
+ *	structures should not be held across this call.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclEmitInvoke(
+    CompileEnv *envPtr,
+    int opcode,
+    ...)
+{
+    va_list argList;
+    ExceptionRange *rangePtr;
+    ExceptionAux *auxBreakPtr, *auxContinuePtr;
+    int arg1, arg2, wordCount = 0, expandCount = 0;
+    int loopRange = 0, breakRange = 0, continueRange = 0;
+    int cleanup, depth = TclGetStackDepth(envPtr);
+    
+    /*
+     * Parse the arguments.
+     */
+
+    va_start(argList, opcode);
+    switch (opcode) {
+    case INST_INVOKE_STK1:
+	wordCount = arg1 = cleanup = va_arg(argList, int);
+	arg2 = 0;
+	break;
+    case INST_INVOKE_STK4:
+	wordCount = arg1 = cleanup = va_arg(argList, int);
+	arg2 = 0;
+	break;
+    case INST_INVOKE_REPLACE:
+	arg1 = va_arg(argList, int);
+	arg2 = va_arg(argList, int);
+	wordCount = arg1 + arg2 - 1;
+	cleanup = arg1 + 1;
+	break;
+    default:
+	Tcl_Panic("unexpected opcode");
+    case INST_EVAL_STK:
+	wordCount = cleanup = 1;
+	arg1 = arg2 = 0;
+	break;
+    case INST_RETURN_STK:
+	wordCount = cleanup = 2;
+	arg1 = arg2 = 0;
+	break;
+    case INST_INVOKE_EXPANDED:
+	wordCount = arg1 = cleanup = va_arg(argList, int);
+	arg2 = 0;
+	expandCount = 1;
+	break;
+    }
+    va_end(argList);
+
     /*
-     * TIP #280: Adjust the mapping from PC values to the per-command
-     * information about arguments and their line numbers.
+     * Determine if we need to handle break and continue exceptions with a
+     * special handling exception range (so that we can correctly unwind the
+     * stack).
      *
-     * Note: We cannot simply remove an out-of-date entry and then reinsert
-     * with the proper PC, because then we might overwrite another entry which
-     * was at that location. Therefore we pull (copy + delete) all effected
-     * entries (beyond the fixed PC) into an array, update them there, and at
-     * last reinsert them all.
+     * These must be done separately; they can be different (especially for
+     * calls from inside a [for] increment clause).
      */
 
-    {
-	ExtCmdLoc* eclPtr = envPtr->extCmdMapPtr;
+    rangePtr = TclGetInnermostExceptionRange(envPtr, TCL_BREAK, &auxBreakPtr);
+    if (rangePtr == NULL || rangePtr->type != LOOP_EXCEPTION_RANGE) {
+	auxBreakPtr = NULL;
+    } else if (auxBreakPtr->stackDepth == envPtr->currStackDepth-wordCount
+	    && auxBreakPtr->expandTarget == envPtr->expandCount-expandCount) {
+	auxBreakPtr = NULL;
+    } else {
+	breakRange = auxBreakPtr - envPtr->exceptAuxArrayPtr;
+    }
 
-	/* A helper structure */
+    rangePtr = TclGetInnermostExceptionRange(envPtr, TCL_CONTINUE,
+	    &auxContinuePtr);
+    if (rangePtr == NULL || rangePtr->type != LOOP_EXCEPTION_RANGE) {
+	auxContinuePtr = NULL;
+    } else if (auxContinuePtr->stackDepth == envPtr->currStackDepth-wordCount
+	    && auxContinuePtr->expandTarget == envPtr->expandCount-expandCount) {
+	auxContinuePtr = NULL;
+    } else {
+	continueRange = auxBreakPtr - envPtr->exceptAuxArrayPtr;
+    }
 
-	typedef struct {
-	    int pc;
-	    int cmd;
-	} MAP;
+    if (auxBreakPtr != NULL || auxContinuePtr != NULL) {
+	loopRange = TclCreateExceptRange(LOOP_EXCEPTION_RANGE, envPtr);
+	ExceptionRangeStarts(envPtr, loopRange);
+    }
 
-	/*
-	 * And the helper array. At most the whole hashtable is placed into
-	 * this.
-	 */
+    /*
+     * Issue the invoke itself.
+     */
+
+    switch (opcode) {
+    case INST_INVOKE_STK1:
+	TclEmitInstInt1(INST_INVOKE_STK1, arg1, envPtr);
+	break;
+    case INST_INVOKE_STK4:
+	TclEmitInstInt4(INST_INVOKE_STK4, arg1, envPtr);
+	break;
+    case INST_INVOKE_EXPANDED:
+	TclEmitOpcode(INST_INVOKE_EXPANDED, envPtr);
+	envPtr->expandCount--;
+	TclAdjustStackDepth(1 - arg1, envPtr);
+	break;
+    case INST_EVAL_STK:
+	TclEmitOpcode(INST_EVAL_STK, envPtr);
+	break;
+    case INST_RETURN_STK:
+	TclEmitOpcode(INST_RETURN_STK, envPtr);
+	break;
+    case INST_INVOKE_REPLACE:
+	TclEmitInstInt4(INST_INVOKE_REPLACE, arg1, envPtr);
+	TclEmitInt1(arg2, envPtr);
+	TclAdjustStackDepth(-1, envPtr); /* Correction to stack depth calcs */
+	break;
+    }
 
-	MAP *map = (MAP*) ckalloc (sizeof(MAP) * eclPtr->litInfo.numEntries);
+    /*
+     * If we're generating a special wrapper exception range, we need to
+     * finish that up now.
+     */
+
+    if (auxBreakPtr != NULL || auxContinuePtr != NULL) {
+	int savedStackDepth = envPtr->currStackDepth;
+	int savedExpandCount = envPtr->expandCount;
+	JumpFixup nonTrapFixup;
+
+	if (auxBreakPtr != NULL) {
+	    auxBreakPtr = envPtr->exceptAuxArrayPtr + breakRange;
+	}
+	if (auxContinuePtr != NULL) {
+	    auxContinuePtr = envPtr->exceptAuxArrayPtr + continueRange;
+	}
 
-	Tcl_HashSearch hSearch;
-	Tcl_HashEntry* hPtr;
-	int n, k, isnew;
+	ExceptionRangeEnds(envPtr, loopRange);
+	TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &nonTrapFixup);
 
 	/*
-	 * Phase I: Locate the affected entries, and save them in adjusted
-	 * form to the array. This removes them from the hash.
+	 * Careful! When generating these stack unwinding sequences, the depth
+	 * of stack in the cases where they are taken is not the same as if
+	 * the exception is not taken.
 	 */
 
-	for (n = 0, hPtr = Tcl_FirstHashEntry(&eclPtr->litInfo, &hSearch);
-	     hPtr != NULL;
-	     hPtr = Tcl_NextHashEntry(&hSearch)) {
+	if (auxBreakPtr != NULL) {
+	    TclAdjustStackDepth(-1, envPtr);
 
-	    map [n].cmd = PTR2INT(Tcl_GetHashValue(hPtr));
-	    map [n].pc  = PTR2INT(Tcl_GetHashKey (&eclPtr->litInfo,hPtr));
+	    ExceptionRangeTarget(envPtr, loopRange, breakOffset);
+	    TclCleanupStackForBreakContinue(envPtr, auxBreakPtr);
+	    TclAddLoopBreakFixup(envPtr, auxBreakPtr);
+	    TclAdjustStackDepth(1, envPtr);
 
-	    if (map[n].pc >= (jumpFixupPtr->codeOffset + 2)) {
-		Tcl_DeleteHashEntry(hPtr);
-		map [n].pc += 3;
-		n++;
-	    }
+	    envPtr->currStackDepth = savedStackDepth;
+	    envPtr->expandCount = savedExpandCount;
 	}
 
-	/*
-	 * Phase II: Re-insert the modified entries into the hash.
-	 */
+	if (auxContinuePtr != NULL) {
+	    TclAdjustStackDepth(-1, envPtr);
+
+	    ExceptionRangeTarget(envPtr, loopRange, continueOffset);
+	    TclCleanupStackForBreakContinue(envPtr, auxContinuePtr);
+	    TclAddLoopContinueFixup(envPtr, auxContinuePtr);
+	    TclAdjustStackDepth(1, envPtr);
 
-	for (k=0;k<n;k++) {
-	    hPtr = Tcl_CreateHashEntry(&eclPtr->litInfo, INT2PTR(map[k].pc), &isnew);
-	    Tcl_SetHashValue(hPtr, INT2PTR(map[k].cmd));
+	    envPtr->currStackDepth = savedStackDepth;
+	    envPtr->expandCount = savedExpandCount;
 	}
 
-	ckfree (map);
+	TclFinalizeLoopExceptionRange(envPtr, loopRange);
+	TclFixupForwardJumpToHere(envPtr, &nonTrapFixup, 127);
     }
-
-    return 1;			/* the jump was grown */
+    TclCheckStackDepth(depth+1-cleanup, envPtr);
 }
 
 /*
@@ -3442,7 +4224,7 @@ TclGetInstructionTable(void)
 /*
  *--------------------------------------------------------------
  *
- * TclRegisterAuxDataType --
+ * RegisterAuxDataType --
  *
  *	This procedure is called to register a new AuxData type in the table
  *	of all AuxData types supported by Tcl.
@@ -3458,8 +4240,8 @@ TclGetInstructionTable(void)
  *--------------------------------------------------------------
  */
 
-void
-TclRegisterAuxDataType(
+static void
+RegisterAuxDataType(
     const AuxDataType *typePtr)	/* Information about object type; storage must
 				 * be statically allocated (must live forever;
 				 * will not be deallocated). */
@@ -3560,12 +4342,13 @@ TclInitAuxDataTypeTable(void)
     Tcl_InitHashTable(&auxDataTypeTable, TCL_STRING_KEYS);
 
     /*
-     * There are only two AuxData type at this time, so register them here.
+     * There are only four AuxData types at this time, so register them here.
      */
 
-    TclRegisterAuxDataType(&tclForeachInfoType);
-    TclRegisterAuxDataType(&tclJumptableInfoType);
-    TclRegisterAuxDataType(&tclDictUpdateInfoType);
+    RegisterAuxDataType(&tclForeachInfoType);
+    RegisterAuxDataType(&tclNewForeachInfoType);
+    RegisterAuxDataType(&tclJumptableInfoType);
+    RegisterAuxDataType(&tclDictUpdateInfoType);
 }
 
 /*
@@ -3796,769 +4579,6 @@ EncodeCmdLocMap(
     return p;
 }
 
-#ifdef TCL_COMPILE_DEBUG
-/*
- *----------------------------------------------------------------------
- *
- * TclPrintByteCodeObj --
- *
- *	This procedure prints ("disassembles") the instructions of a bytecode
- *	object to stdout.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TclPrintByteCodeObj(
-    Tcl_Interp *interp,		/* Used only for Tcl_GetStringFromObj. */
-    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
-{
-    Tcl_Obj *bufPtr = TclDisassembleByteCodeObj(objPtr);
-
-    fprintf(stdout, "\n%s", TclGetString(bufPtr));
-    Tcl_DecrRefCount(bufPtr);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclPrintInstruction --
- *
- *	This procedure prints ("disassembles") one instruction from a bytecode
- *	object to stdout.
- *
- * Results:
- *	Returns the length in bytes of the current instruiction.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclPrintInstruction(
-    ByteCode *codePtr,		/* Bytecode containing the instruction. */
-    const unsigned char *pc)	/* Points to first byte of instruction. */
-{
-    Tcl_Obj *bufferObj;
-    int numBytes;
-
-    TclNewObj(bufferObj);
-    numBytes = FormatInstruction(codePtr, pc, bufferObj);
-    fprintf(stdout, "%s", TclGetString(bufferObj));
-    Tcl_DecrRefCount(bufferObj);
-    return numBytes;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclPrintObject --
- *
- *	This procedure prints up to a specified number of characters from the
- *	argument Tcl object's string representation to a specified file.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	Outputs characters to the specified file.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TclPrintObject(
-    FILE *outFile,		/* The file to print the source to. */
-    Tcl_Obj *objPtr,		/* Points to the Tcl object whose string
-				 * representation should be printed. */
-    int maxChars)		/* Maximum number of chars to print. */
-{
-    char *bytes;
-    int length;
-
-    bytes = Tcl_GetStringFromObj(objPtr, &length);
-    TclPrintSource(outFile, bytes, TclMin(length, maxChars));
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclPrintSource --
- *
- *	This procedure prints up to a specified number of characters from the
- *	argument string to a specified file. It tries to produce legible
- *	output by adding backslashes as necessary.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	Outputs characters to the specified file.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TclPrintSource(
-    FILE *outFile,		/* The file to print the source to. */
-    const char *stringPtr,	/* The string to print. */
-    int maxChars)		/* Maximum number of chars to print. */
-{
-    Tcl_Obj *bufferObj;
-
-    TclNewObj(bufferObj);
-    PrintSourceToObj(bufferObj, stringPtr, maxChars);
-    fprintf(outFile, "%s", TclGetString(bufferObj));
-    Tcl_DecrRefCount(bufferObj);
-}
-#endif /* TCL_COMPILE_DEBUG */
-
-/*
- *----------------------------------------------------------------------
- *
- * TclDisassembleByteCodeObj --
- *
- *	Given an object which is of bytecode type, return a disassembled
- *	version of the bytecode (in a new refcount 0 object). No guarantees
- *	are made about the details of the contents of the result.
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Obj *
-TclDisassembleByteCodeObj(
-    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
-{
-    ByteCode *codePtr = objPtr->internalRep.otherValuePtr;
-    unsigned char *codeStart, *codeLimit, *pc;
-    unsigned char *codeDeltaNext, *codeLengthNext;
-    unsigned char *srcDeltaNext, *srcLengthNext;
-    int codeOffset, codeLen, srcOffset, srcLen, numCmds, delta, i;
-    Interp *iPtr = (Interp *) *codePtr->interpHandle;
-    Tcl_Obj *bufferObj;
-    char ptrBuf1[20], ptrBuf2[20];
-
-    TclNewObj(bufferObj);
-    if (codePtr->refCount <= 0) {
-	return bufferObj;	/* Already freed. */
-    }
-
-    codeStart = codePtr->codeStart;
-    codeLimit = codeStart + codePtr->numCodeBytes;
-    numCmds = codePtr->numCommands;
-
-    /*
-     * Print header lines describing the ByteCode.
-     */
-
-    sprintf(ptrBuf1, "%p", codePtr);
-    sprintf(ptrBuf2, "%p", iPtr);
-    Tcl_AppendPrintfToObj(bufferObj,
-	    "ByteCode 0x%s, refCt %u, epoch %u, interp 0x%s (epoch %u)\n",
-	    ptrBuf1, codePtr->refCount, codePtr->compileEpoch, ptrBuf2,
-	    iPtr->compileEpoch);
-    Tcl_AppendToObj(bufferObj, "  Source ", -1);
-    PrintSourceToObj(bufferObj, codePtr->source,
-	    TclMin(codePtr->numSrcBytes, 55));
-    Tcl_AppendPrintfToObj(bufferObj,
-	    "\n  Cmds %d, src %d, inst %d, litObjs %u, aux %d, stkDepth %u, code/src %.2f\n",
-	    numCmds, codePtr->numSrcBytes, codePtr->numCodeBytes,
-	    codePtr->numLitObjects, codePtr->numAuxDataItems,
-	    codePtr->maxStackDepth,
-#ifdef TCL_COMPILE_STATS
-	    codePtr->numSrcBytes?
-		    codePtr->structureSize/(float)codePtr->numSrcBytes :
-#endif
-	    0.0);
-
-#ifdef TCL_COMPILE_STATS
-    Tcl_AppendPrintfToObj(bufferObj,
-	    "  Code %lu = header %lu+inst %d+litObj %lu+exc %lu+aux %lu+cmdMap %d\n",
-	    (unsigned long) codePtr->structureSize,
-	    (unsigned long) (sizeof(ByteCode) - sizeof(size_t) - sizeof(Tcl_Time)),
-	    codePtr->numCodeBytes,
-	    (unsigned long) (codePtr->numLitObjects * sizeof(Tcl_Obj *)),
-	    (unsigned long) (codePtr->numExceptRanges*sizeof(ExceptionRange)),
-	    (unsigned long) (codePtr->numAuxDataItems * sizeof(AuxData)),
-	    codePtr->numCmdLocBytes);
-#endif /* TCL_COMPILE_STATS */
-
-    /*
-     * If the ByteCode is the compiled body of a Tcl procedure, print
-     * information about that procedure. Note that we don't know the
-     * procedure's name since ByteCode's can be shared among procedures.
-     */
-
-    if (codePtr->procPtr != NULL) {
-	Proc *procPtr = codePtr->procPtr;
-	int numCompiledLocals = procPtr->numCompiledLocals;
-
-	sprintf(ptrBuf1, "%p", procPtr);
-	Tcl_AppendPrintfToObj(bufferObj,
-		"  Proc 0x%s, refCt %d, args %d, compiled locals %d\n",
-		ptrBuf1, procPtr->refCount, procPtr->numArgs,
-		numCompiledLocals);
-	if (numCompiledLocals > 0) {
-	    CompiledLocal *localPtr = procPtr->firstLocalPtr;
-
-	    for (i = 0;  i < numCompiledLocals;  i++) {
-		Tcl_AppendPrintfToObj(bufferObj,
-			"      slot %d%s%s%s%s%s%s", i,
-			(localPtr->flags & (VAR_ARRAY|VAR_LINK)) ? "" : ", scalar",
-			(localPtr->flags & VAR_ARRAY) ? ", array" : "",
-			(localPtr->flags & VAR_LINK) ? ", link" : "",
-			(localPtr->flags & VAR_ARGUMENT) ? ", arg" : "",
-			(localPtr->flags & VAR_TEMPORARY) ? ", temp" : "",
-			(localPtr->flags & VAR_RESOLVED) ? ", resolved" : "");
-		if (TclIsVarTemporary(localPtr)) {
-		    Tcl_AppendToObj(bufferObj, "\n", -1);
-		} else {
-		    Tcl_AppendPrintfToObj(bufferObj, ", \"%s\"\n",
-			    localPtr->name);
-		}
-		localPtr = localPtr->nextPtr;
-	    }
-	}
-    }
-
-    /*
-     * Print the ExceptionRange array.
-     */
-
-    if (codePtr->numExceptRanges > 0) {
-	Tcl_AppendPrintfToObj(bufferObj, "  Exception ranges %d, depth %d:\n",
-		codePtr->numExceptRanges, codePtr->maxExceptDepth);
-	for (i = 0;  i < codePtr->numExceptRanges;  i++) {
-	    ExceptionRange *rangePtr = &codePtr->exceptArrayPtr[i];
-
-	    Tcl_AppendPrintfToObj(bufferObj,
-		    "      %d: level %d, %s, pc %d-%d, ",
-		    i, rangePtr->nestingLevel,
-		    (rangePtr->type==LOOP_EXCEPTION_RANGE ? "loop" : "catch"),
-		    rangePtr->codeOffset,
-		    (rangePtr->codeOffset + rangePtr->numCodeBytes - 1));
-	    switch (rangePtr->type) {
-	    case LOOP_EXCEPTION_RANGE:
-		Tcl_AppendPrintfToObj(bufferObj, "continue %d, break %d\n",
-			rangePtr->continueOffset, rangePtr->breakOffset);
-		break;
-	    case CATCH_EXCEPTION_RANGE:
-		Tcl_AppendPrintfToObj(bufferObj, "catch %d\n",
-			rangePtr->catchOffset);
-		break;
-	    default:
-		Tcl_Panic("TclDisassembleByteCodeObj: bad ExceptionRange type %d",
-			rangePtr->type);
-	    }
-	}
-    }
-
-    /*
-     * If there were no commands (e.g., an expression or an empty string was
-     * compiled), just print all instructions and return.
-     */
-
-    if (numCmds == 0) {
-	pc = codeStart;
-	while (pc < codeLimit) {
-	    Tcl_AppendToObj(bufferObj, "    ", -1);
-	    pc += FormatInstruction(codePtr, pc, bufferObj);
-	}
-	return bufferObj;
-    }
-
-    /*
-     * Print table showing the code offset, source offset, and source length
-     * for each command. These are encoded as a sequence of bytes.
-     */
-
-    Tcl_AppendPrintfToObj(bufferObj, "  Commands %d:", numCmds);
-    codeDeltaNext = codePtr->codeDeltaStart;
-    codeLengthNext = codePtr->codeLengthStart;
-    srcDeltaNext = codePtr->srcDeltaStart;
-    srcLengthNext = codePtr->srcLengthStart;
-    codeOffset = srcOffset = 0;
-    for (i = 0;  i < numCmds;  i++) {
-	if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) {
-	    codeDeltaNext++;
-	    delta = TclGetInt4AtPtr(codeDeltaNext);
-	    codeDeltaNext += 4;
-	} else {
-	    delta = TclGetInt1AtPtr(codeDeltaNext);
-	    codeDeltaNext++;
-	}
-	codeOffset += delta;
-
-	if ((unsigned) *codeLengthNext == (unsigned) 0xFF) {
-	    codeLengthNext++;
-	    codeLen = TclGetInt4AtPtr(codeLengthNext);
-	    codeLengthNext += 4;
-	} else {
-	    codeLen = TclGetInt1AtPtr(codeLengthNext);
-	    codeLengthNext++;
-	}
-
-	if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) {
-	    srcDeltaNext++;
-	    delta = TclGetInt4AtPtr(srcDeltaNext);
-	    srcDeltaNext += 4;
-	} else {
-	    delta = TclGetInt1AtPtr(srcDeltaNext);
-	    srcDeltaNext++;
-	}
-	srcOffset += delta;
-
-	if ((unsigned) *srcLengthNext == (unsigned) 0xFF) {
-	    srcLengthNext++;
-	    srcLen = TclGetInt4AtPtr(srcLengthNext);
-	    srcLengthNext += 4;
-	} else {
-	    srcLen = TclGetInt1AtPtr(srcLengthNext);
-	    srcLengthNext++;
-	}
-
-	Tcl_AppendPrintfToObj(bufferObj, "%s%4d: pc %d-%d, src %d-%d",
-		((i % 2)? "     " : "\n   "),
-		(i+1), codeOffset, (codeOffset + codeLen - 1),
-		srcOffset, (srcOffset + srcLen - 1));
-    }
-    if (numCmds > 0) {
-	Tcl_AppendToObj(bufferObj, "\n", -1);
-    }
-
-    /*
-     * Print each instruction. If the instruction corresponds to the start of
-     * a command, print the command's source. Note that we don't need the code
-     * length here.
-     */
-
-    codeDeltaNext = codePtr->codeDeltaStart;
-    srcDeltaNext = codePtr->srcDeltaStart;
-    srcLengthNext = codePtr->srcLengthStart;
-    codeOffset = srcOffset = 0;
-    pc = codeStart;
-    for (i = 0;  i < numCmds;  i++) {
-	if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) {
-	    codeDeltaNext++;
-	    delta = TclGetInt4AtPtr(codeDeltaNext);
-	    codeDeltaNext += 4;
-	} else {
-	    delta = TclGetInt1AtPtr(codeDeltaNext);
-	    codeDeltaNext++;
-	}
-	codeOffset += delta;
-
-	if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) {
-	    srcDeltaNext++;
-	    delta = TclGetInt4AtPtr(srcDeltaNext);
-	    srcDeltaNext += 4;
-	} else {
-	    delta = TclGetInt1AtPtr(srcDeltaNext);
-	    srcDeltaNext++;
-	}
-	srcOffset += delta;
-
-	if ((unsigned) *srcLengthNext == (unsigned) 0xFF) {
-	    srcLengthNext++;
-	    srcLen = TclGetInt4AtPtr(srcLengthNext);
-	    srcLengthNext += 4;
-	} else {
-	    srcLen = TclGetInt1AtPtr(srcLengthNext);
-	    srcLengthNext++;
-	}
-
-	/*
-	 * Print instructions before command i.
-	 */
-
-	while ((pc-codeStart) < codeOffset) {
-	    Tcl_AppendToObj(bufferObj, "    ", -1);
-	    pc += FormatInstruction(codePtr, pc, bufferObj);
-	}
-
-	Tcl_AppendPrintfToObj(bufferObj, "  Command %d: ", i+1);
-	PrintSourceToObj(bufferObj, (codePtr->source + srcOffset),
-		TclMin(srcLen, 55));
-	Tcl_AppendToObj(bufferObj, "\n", -1);
-    }
-    if (pc < codeLimit) {
-	/*
-	 * Print instructions after the last command.
-	 */
-
-	while (pc < codeLimit) {
-	    Tcl_AppendToObj(bufferObj, "    ", -1);
-	    pc += FormatInstruction(codePtr, pc, bufferObj);
-	}
-    }
-    return bufferObj;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * FormatInstruction --
- *
- *	Appends a representation of a bytecode instruction to a Tcl_Obj.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-FormatInstruction(
-    ByteCode *codePtr,		/* Bytecode containing the instruction. */
-    const unsigned char *pc,	/* Points to first byte of instruction. */
-    Tcl_Obj *bufferObj)		/* Object to append instruction info to. */
-{
-    Proc *procPtr = codePtr->procPtr;
-    unsigned char opCode = *pc;
-    register const InstructionDesc *instDesc = &tclInstructionTable[opCode];
-    unsigned char *codeStart = codePtr->codeStart;
-    unsigned pcOffset = pc - codeStart;
-    int opnd = 0, i, j, numBytes = 1;
-    int localCt = procPtr ? procPtr->numCompiledLocals : 0;
-    CompiledLocal *localPtr = procPtr ? procPtr->firstLocalPtr : NULL;
-    char suffixBuffer[128];	/* Additional info to print after main opcode
-				 * and immediates. */
-    char *suffixSrc = NULL;
-    Tcl_Obj *suffixObj = NULL;
-    AuxData *auxPtr = NULL;
-
-    suffixBuffer[0] = '\0';
-    Tcl_AppendPrintfToObj(bufferObj, "(%u) %s ", pcOffset, instDesc->name);
-    for (i = 0;  i < instDesc->numOperands;  i++) {
-	switch (instDesc->opTypes[i]) {
-	case OPERAND_INT1:
-	    opnd = TclGetInt1AtPtr(pc+numBytes); numBytes++;
-	    if (opCode == INST_JUMP1 || opCode == INST_JUMP_TRUE1
-		    || opCode == INST_JUMP_FALSE1) {
-		sprintf(suffixBuffer, "pc %u", pcOffset+opnd);
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
-	    break;
-	case OPERAND_INT4:
-	    opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4;
-	    if (opCode == INST_JUMP4 || opCode == INST_JUMP_TRUE4
-		    || opCode == INST_JUMP_FALSE4) {
-		sprintf(suffixBuffer, "pc %u", pcOffset+opnd);
-	    } else if (opCode == INST_START_CMD) {
-		sprintf(suffixBuffer, "next cmd at pc %u", pcOffset+opnd);
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
-	    break;
-	case OPERAND_UINT1:
-	    opnd = TclGetUInt1AtPtr(pc+numBytes); numBytes++;
-	    if (opCode == INST_PUSH1) {
-		suffixObj = codePtr->objArrayPtr[opnd];
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
-	    break;
-	case OPERAND_AUX4:
-	case OPERAND_UINT4:
-	    opnd = TclGetUInt4AtPtr(pc+numBytes); numBytes += 4;
-	    if (opCode == INST_PUSH4) {
-		suffixObj = codePtr->objArrayPtr[opnd];
-	    } else if (opCode == INST_START_CMD && opnd != 1) {
-		sprintf(suffixBuffer+strlen(suffixBuffer),
-			", %u cmds start here", opnd);
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
-	    if (instDesc->opTypes[i] == OPERAND_AUX4) {
-		auxPtr = &codePtr->auxDataArrayPtr[opnd];
-	    }
-	    break;
-	case OPERAND_IDX4:
-	    opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4;
-	    if (opnd >= -1) {
-		Tcl_AppendPrintfToObj(bufferObj, "%d ", opnd);
-	    } else if (opnd == -2) {
-		Tcl_AppendPrintfToObj(bufferObj, "end ");
-	    } else {
-		Tcl_AppendPrintfToObj(bufferObj, "end-%d ", -2-opnd);
-	    }
-	    break;
-	case OPERAND_LVT1:
-	    opnd = TclGetUInt1AtPtr(pc+numBytes);
-	    numBytes++;
-	    goto printLVTindex;
-	case OPERAND_LVT4:
-	    opnd = TclGetUInt4AtPtr(pc+numBytes);
-	    numBytes += 4;
-	printLVTindex:
-	    if (localPtr != NULL) {
-		if (opnd >= localCt) {
-		    Tcl_Panic("FormatInstruction: bad local var index %u (%u locals)",
-			    (unsigned) opnd, localCt);
-		}
-		for (j = 0;  j < opnd;  j++) {
-		    localPtr = localPtr->nextPtr;
-		}
-		if (TclIsVarTemporary(localPtr)) {
-		    sprintf(suffixBuffer, "temp var %u", (unsigned) opnd);
-		} else {
-		    sprintf(suffixBuffer, "var ");
-		    suffixSrc = localPtr->name;
-		}
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%%v%u ", (unsigned) opnd);
-	    break;
-	case OPERAND_NONE:
-	default:
-	    break;
-	}
-    }
-    if (suffixObj) {
-	const char *bytes;
-	int length;
-
-	Tcl_AppendToObj(bufferObj, "\t# ", -1);
-	bytes = Tcl_GetStringFromObj(codePtr->objArrayPtr[opnd], &length);
-	PrintSourceToObj(bufferObj, bytes, TclMin(length, 40));
-    } else if (suffixBuffer[0]) {
-	Tcl_AppendPrintfToObj(bufferObj, "\t# %s", suffixBuffer);
-	if (suffixSrc) {
-	    PrintSourceToObj(bufferObj, suffixSrc, 40);
-	}
-    }
-    Tcl_AppendToObj(bufferObj, "\n", -1);
-    if (auxPtr && auxPtr->type->printProc) {
-	Tcl_AppendToObj(bufferObj, "\t\t[", -1);
-	auxPtr->type->printProc(auxPtr->clientData, bufferObj, codePtr,
-		pcOffset);
-	Tcl_AppendToObj(bufferObj, "]\n", -1);
-    }
-    return numBytes;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclGetInnerContext --
- *
- *	If possible, returns a list capturing the inner context. Otherwise
- *	return NULL.
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Obj *
-TclGetInnerContext(
-    Tcl_Interp *interp,
-    const unsigned char *pc,
-    Tcl_Obj **tosPtr)
-{
-    int objc = 0, off = 0;
-    Tcl_Obj *result;
-    Interp *iPtr = (Interp *) interp;
-
-    switch (*pc) {
-    case INST_STR_LEN:
-    case INST_LNOT:
-    case INST_BITNOT:
-    case INST_UMINUS:
-    case INST_UPLUS:
-    case INST_TRY_CVT_TO_NUMERIC:
-    case INST_EXPAND_STKTOP:
-    case INST_EXPR_STK:
-        objc = 1;
-        break;
-
-    case INST_LIST_IN:
-    case INST_LIST_NOT_IN:	/* Basic list containment operators. */
-    case INST_STR_EQ:
-    case INST_STR_NEQ:		/* String (in)equality check */
-    case INST_STR_CMP:		/* String compare. */
-    case INST_STR_INDEX:
-    case INST_STR_MATCH:
-    case INST_REGEXP:
-    case INST_EQ:
-    case INST_NEQ:
-    case INST_LT:
-    case INST_GT:
-    case INST_LE:
-    case INST_GE:
-    case INST_MOD:
-    case INST_LSHIFT:
-    case INST_RSHIFT:
-    case INST_BITOR:
-    case INST_BITXOR:
-    case INST_BITAND:
-    case INST_EXPON:
-    case INST_ADD:
-    case INST_SUB:
-    case INST_DIV:
-    case INST_MULT:
-        objc = 2;
-        break;
-
-    case INST_RETURN_STK:
-        /* early pop. TODO: dig out opt dict too :/ */
-        objc = 1;
-        break;
-
-    case INST_SYNTAX:
-    case INST_RETURN_IMM:
-        objc = 2;
-        break;
-
-    case INST_INVOKE_STK4:
-	objc = TclGetUInt4AtPtr(pc+1);
-        break;
-
-    case INST_INVOKE_STK1:
-	objc = TclGetUInt1AtPtr(pc+1);
-	break;
-    }
-
-    result = iPtr->innerContext;
-    if (Tcl_IsShared(result)) {
-        Tcl_DecrRefCount(result);
-        iPtr->innerContext = result = Tcl_NewListObj(objc + 1, NULL);
-        Tcl_IncrRefCount(result);
-    } else {
-        int len;
-
-        /*
-         * Reset while keeping the list intrep as much as possible.
-         */
-
-	Tcl_ListObjLength(interp, result, &len);
-        Tcl_ListObjReplace(interp, result, 0, len, 0, NULL);
-    }
-    Tcl_ListObjAppendElement(NULL, result, TclNewInstNameObj(*pc));
-
-    for (; objc>0 ; objc--) {
-        Tcl_Obj *objPtr;
-
-        objPtr = tosPtr[1 - objc + off];
-        if (!objPtr) {
-            Tcl_Panic("InnerContext: bad tos -- appending null object");
-        }
-        if (objPtr->refCount<=0 || objPtr->refCount==0x61616161) {
-            Tcl_Panic("InnerContext: bad tos -- appending freed object %p",
-                    objPtr);
-        }
-        Tcl_ListObjAppendElement(NULL, result, objPtr);
-    }
-
-    return result;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclNewInstNameObj --
- *
- *	Creates a new InstName Tcl_Obj based on the given instruction
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Obj *
-TclNewInstNameObj(
-    unsigned char inst)
-{
-    Tcl_Obj *objPtr = Tcl_NewObj();
-
-    objPtr->typePtr = &tclInstNameType;
-    objPtr->internalRep.longValue = (long) inst;
-    objPtr->bytes = NULL;
-
-    return objPtr;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * UpdateStringOfInstName --
- *
- *	Update the string representation for an instruction name object.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-UpdateStringOfInstName(
-    Tcl_Obj *objPtr)
-{
-    int inst = objPtr->internalRep.longValue;
-    char *s, buf[20];
-    int len;
-
-    if ((inst < 0) || (inst > LAST_INST_OPCODE)) {
-        sprintf(buf, "inst_%d", inst);
-        s = buf;
-    } else {
-        s = (char *) tclInstructionTable[objPtr->internalRep.longValue].name;
-    }
-    len = strlen(s);
-    objPtr->bytes = ckalloc(len + 1);
-    memcpy(objPtr->bytes, s, len + 1);
-    objPtr->length = len;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * PrintSourceToObj --
- *
- *	Appends a quoted representation of a string to a Tcl_Obj.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-PrintSourceToObj(
-    Tcl_Obj *appendObj,		/* The object to print the source to. */
-    const char *stringPtr,	/* The string to print. */
-    int maxChars)		/* Maximum number of chars to print. */
-{
-    register const char *p;
-    register int i = 0;
-
-    if (stringPtr == NULL) {
-	Tcl_AppendToObj(appendObj, "\"\"", -1);
-	return;
-    }
-
-    Tcl_AppendToObj(appendObj, "\"", -1);
-    p = stringPtr;
-    for (;  (*p != '\0') && (i < maxChars);  p++, i++) {
-	switch (*p) {
-	case '"':
-	    Tcl_AppendToObj(appendObj, "\\\"", -1);
-	    continue;
-	case '\f':
-	    Tcl_AppendToObj(appendObj, "\\f", -1);
-	    continue;
-	case '\n':
-	    Tcl_AppendToObj(appendObj, "\\n", -1);
-	    continue;
-	case '\r':
-	    Tcl_AppendToObj(appendObj, "\\r", -1);
-	    continue;
-	case '\t':
-	    Tcl_AppendToObj(appendObj, "\\t", -1);
-	    continue;
-	case '\v':
-	    Tcl_AppendToObj(appendObj, "\\v", -1);
-	    continue;
-	default:
-	    Tcl_AppendPrintfToObj(appendObj, "%c", *p);
-	    continue;
-	}
-    }
-    Tcl_AppendToObj(appendObj, "\"", -1);
-}
-
 #ifdef TCL_COMPILE_STATS
 /*
  *----------------------------------------------------------------------
@@ -4620,6 +4640,5 @@ RecordByteCodeStats(
  * c-basic-offset: 4
  * fill-column: 78
  * tab-width: 8
- * indent-tabs-mode: nil
  * End:
  */
diff --git a/generic/tclCompile.h b/generic/tclCompile.h
index ba78c36..c6c7a7c 100644
--- a/generic/tclCompile.h
+++ b/generic/tclCompile.h
@@ -48,6 +48,13 @@ MODULE_SCOPE int 	tclTraceCompile;
 
 MODULE_SCOPE int 	tclTraceExec;
 #endif
+
+/*
+ * The type of lambda expressions. Note that every lambda will *always* have a
+ * string representation.
+ */
+
+MODULE_SCOPE const Tcl_ObjType tclLambdaType;
 
 /*
  *------------------------------------------------------------------------
@@ -100,6 +107,54 @@ typedef struct ExceptionRange {
 } ExceptionRange;
 
 /*
+ * Auxiliary data used when issuing (currently just loop) exception ranges,
+ * but which is not required during execution.
+ */
+
+typedef struct ExceptionAux {
+    int supportsContinue;	/* Whether this exception range will have a
+				 * continueOffset created for it; if it is a
+				 * loop exception range that *doesn't* have
+				 * one (see [for] next-clause) then we must
+				 * not pick up the range when scanning for a
+				 * target to continue to. */
+    int stackDepth;		/* The stack depth at the point where the
+				 * exception range was created. This is used
+				 * to calculate the number of POPs required to
+				 * restore the stack to its prior state. */
+    int expandTarget;		/* The number of expansions expected on the
+				 * auxData stack at the time the loop starts;
+				 * we can't currently discard them except by
+				 * doing INST_INVOKE_EXPANDED; this is a known
+				 * problem. */
+    int expandTargetDepth;	/* The stack depth expected at the outermost
+				 * expansion within the loop. Not meaningful
+				 * if there are no open expansions between the
+				 * looping level and the point of jump
+				 * issue. */
+    int numBreakTargets;	/* The number of [break]s that want to be
+				 * targeted to the place where this loop
+				 * exception will be bound to. */
+    int *breakTargets;		/* The offsets of the INST_JUMP4 instructions
+				 * issued by the [break]s that we must
+				 * update. Note that resizing a jump (via
+				 * TclFixupForwardJump) can cause the contents
+				 * of this array to be updated. When
+				 * numBreakTargets==0, this is NULL. */
+    int allocBreakTargets;	/* The size of the breakTargets array. */
+    int numContinueTargets;	/* The number of [continue]s that want to be
+				 * targeted to the place where this loop
+				 * exception will be bound to. */
+    int *continueTargets;	/* The offsets of the INST_JUMP4 instructions
+				 * issued by the [continue]s that we must
+				 * update. Note that resizing a jump (via
+				 * TclFixupForwardJump) can cause the contents
+				 * of this array to be updated. When
+				 * numContinueTargets==0, this is NULL. */
+    int allocContinueTargets;	/* The size of the continueTargets array. */
+} ExceptionAux;
+
+/*
  * Structure used to map between instruction pc and source locations. It
  * defines for each compiled Tcl command its code's starting offset and its
  * source's starting offset and length. Note that the code offset increases
@@ -145,13 +200,6 @@ typedef struct ExtCmdLoc {
     ECL *loc;			/* Command word locations (lines). */
     int nloc;			/* Number of allocated entries in 'loc'. */
     int nuloc;			/* Number of used entries in 'loc'. */
-    Tcl_HashTable litInfo;	/* Indexed by bytecode 'PC', to have the
-				 * information accessible per command and
-				 * argument, not per whole bytecode. Value is
-				 * index of command in 'loc', giving us the
-				 * literals to associate with line information
-				 * as command argument, see
-				 * TclArgumentBCEnter() */
 } ExtCmdLoc;
 
 /*
@@ -197,6 +245,16 @@ typedef struct AuxDataType {
     AuxDataPrintProc *printProc;/* Callback function to invoke when printing
 				 * the aux data as part of debugging. NULL
 				 * means that the data can't be printed. */
+    AuxDataPrintProc *disassembleProc;
+				/* Callback function to invoke when doing a
+				 * disassembly of the aux data (like the
+				 * printProc, except that the output is
+				 * intended to be script-readable). The
+				 * appendObj argument should be filled in with
+				 * a descriptive dictionary; it will start out
+				 * with "name" mapped to the content of the
+				 * name field. NULL means that the printProc
+				 * should be used instead. */
 } AuxDataType;
 
 /*
@@ -275,6 +333,11 @@ typedef struct CompileEnv {
 				 * entry. */
     int mallocedExceptArray;	/* 1 if ExceptionRange array was expanded and
 				 * exceptArrayPtr points in heap, else 0. */
+    ExceptionAux *exceptAuxArrayPtr;
+				/* Array of information used to restore the
+				 * state when processing BREAK/CONTINUE
+				 * exceptions. Must be the same size as the
+				 * exceptArrayPtr. */
     CmdLocation *cmdMapPtr;	/* Points to start of CmdLocation array.
 				 * numCommands is the index of the next entry
 				 * to use; (numCommands-1) is the entry index
@@ -296,6 +359,9 @@ typedef struct CompileEnv {
 				/* Initial storage of LiteralEntry array. */
     ExceptionRange staticExceptArraySpace[COMPILEENV_INIT_EXCEPT_RANGES];
 				/* Initial ExceptionRange array storage. */
+    ExceptionAux staticExAuxArraySpace[COMPILEENV_INIT_EXCEPT_RANGES];
+				/* Initial static except auxiliary info array
+				 * storage. */
     CmdLocation staticCmdMapSpace[COMPILEENV_INIT_CMD_MAP_SIZE];
 				/* Initial storage for cmd location map. */
     AuxData staticAuxDataArraySpace[COMPILEENV_INIT_AUX_DATA_SIZE];
@@ -309,11 +375,13 @@ typedef struct CompileEnv {
     int atCmdStart;		/* Flag to say whether an INST_START_CMD
 				 * should be issued; they should never be
 				 * issued repeatedly, as that is significantly
-				 * inefficient. */
-    ContLineLoc *clLoc;		/* If not NULL, the table holding the
-				 * locations of the invisible continuation
-				 * lines in the input script, to adjust the
-				 * line counter. */
+				 * inefficient. If set to 2, that instruction
+				 * should not be issued at all (by the generic
+				 * part of the command compiler). */
+    int expandCount;		/* Number of INST_EXPAND_START instructions
+				 * encountered that have not yet been paired
+				 * with a corresponding
+				 * INST_INVOKE_EXPANDED. */
     int *clNext;		/* If not NULL, it refers to the next slot in
 				 * clLoc to check for an invisible
 				 * continuation line. */
@@ -461,7 +529,7 @@ typedef struct ByteCode {
 #define INST_PUSH4			2
 #define INST_POP			3
 #define INST_DUP			4
-#define INST_CONCAT1			5
+#define INST_STR_CONCAT1		5
 #define INST_INVOKE_STK1		6
 #define INST_INVOKE_STK4		7
 #define INST_EVAL_STK			8
@@ -535,8 +603,8 @@ typedef struct ByteCode {
 #define INST_CONTINUE			66
 
 /* Opcodes 67 to 68 */
-#define INST_FOREACH_START4		67
-#define INST_FOREACH_STEP4		68
+#define INST_FOREACH_START4		67 /* DEPRECATED */
+#define INST_FOREACH_STEP4		68 /* DEPRECATED */
 
 /* Opcodes 69 to 72 */
 #define INST_BEGIN_CATCH4		69
@@ -676,13 +744,85 @@ typedef struct ByteCode {
 #define INST_UNSET_ARRAY_STK		136
 #define INST_UNSET_STK			137
 
-/* For [dict with] compilation */
+/* For [dict with], [dict exists], [dict create] and [dict merge] */
 #define INST_DICT_EXPAND		138
 #define INST_DICT_RECOMBINE_STK		139
 #define INST_DICT_RECOMBINE_IMM		140
+#define INST_DICT_EXISTS		141
+#define INST_DICT_VERIFY		142
+
+/* For [string map] and [regsub] compilation */
+#define INST_STR_MAP			143
+#define INST_STR_FIND			144
+#define INST_STR_FIND_LAST		145
+#define INST_STR_RANGE_IMM		146
+#define INST_STR_RANGE			147
+
+/* For operations to do with coroutines and other NRE-manipulators */
+#define INST_YIELD			148
+#define INST_COROUTINE_NAME		149
+#define INST_TAILCALL			150
+
+/* For compilation of basic information operations */
+#define INST_NS_CURRENT			151
+#define INST_INFO_LEVEL_NUM		152
+#define INST_INFO_LEVEL_ARGS		153
+#define INST_RESOLVE_COMMAND		154
+
+/* For compilation relating to TclOO */
+#define INST_TCLOO_SELF			155
+#define INST_TCLOO_CLASS		156
+#define INST_TCLOO_NS			157
+#define INST_TCLOO_IS_OBJECT		158
+
+/* For compilation of [array] subcommands */
+#define INST_ARRAY_EXISTS_STK		159
+#define INST_ARRAY_EXISTS_IMM		160
+#define INST_ARRAY_MAKE_STK		161
+#define INST_ARRAY_MAKE_IMM		162
+
+#define INST_INVOKE_REPLACE		163
+
+#define INST_LIST_CONCAT		164
+
+#define INST_EXPAND_DROP		165
+
+/* New foreach implementation */
+#define INST_FOREACH_START              166
+#define INST_FOREACH_STEP               167
+#define INST_FOREACH_END                168
+#define INST_LMAP_COLLECT               169
+
+/* For compilation of [string trim] and related */
+#define INST_STR_TRIM			170
+#define INST_STR_TRIM_LEFT		171
+#define INST_STR_TRIM_RIGHT		172
+
+#define INST_CONCAT_STK			173
+
+#define INST_STR_UPPER			174
+#define INST_STR_LOWER			175
+#define INST_STR_TITLE			176
+#define INST_STR_REPLACE		177
+
+#define INST_ORIGIN_COMMAND		178
+
+#define INST_TCLOO_NEXT			179
+#define INST_TCLOO_NEXT_CLASS		180
+
+#define INST_YIELD_TO_INVOKE		181
+
+#define INST_NUM_TYPE			182
+#define INST_TRY_CVT_TO_BOOLEAN		183
+#define INST_STR_CLASS			184
+
+#define INST_LAPPEND_LIST		185
+#define INST_LAPPEND_LIST_ARRAY		186
+#define INST_LAPPEND_LIST_ARRAY_STK	187
+#define INST_LAPPEND_LIST_STK		188
 
 /* The last opcode */
-#define LAST_INST_OPCODE		140
+#define LAST_INST_OPCODE		188
 
 /*
  * Table describing the Tcl bytecode instructions: their name (for displaying
@@ -707,8 +847,15 @@ typedef enum InstOperandType {
 				 * variable table. */
     OPERAND_LVT4,		/* Four byte unsigned index into the local
 				 * variable table. */
-    OPERAND_AUX4		/* Four byte unsigned index into the aux data
+    OPERAND_AUX4,		/* Four byte unsigned index into the aux data
 				 * table. */
+    OPERAND_OFFSET1,		/* One byte signed jump offset. */
+    OPERAND_OFFSET4,		/* Four byte signed jump offset. */
+    OPERAND_LIT1,		/* One byte unsigned index into table of
+				 * literals. */
+    OPERAND_LIT4,		/* Four byte unsigned index into table of
+				 * literals. */
+    OPERAND_SCLS1		/* Index into tclStringClassTable. */
 } InstOperandType;
 
 typedef struct InstructionDesc {
@@ -727,6 +874,40 @@ typedef struct InstructionDesc {
 MODULE_SCOPE InstructionDesc const tclInstructionTable[];
 
 /*
+ * Constants used by INST_STRING_CLASS to indicate character classes. These
+ * correspond closely by name with what [string is] can support, but there is
+ * no requirement to keep the values the same.
+ */
+
+typedef enum InstStringClassType {
+    STR_CLASS_ALNUM,		/* Unicode alphabet or digit characters. */
+    STR_CLASS_ALPHA,		/* Unicode alphabet characters. */
+    STR_CLASS_ASCII,		/* Characters in range U+000000..U+00007F. */
+    STR_CLASS_CONTROL,		/* Unicode control characters. */
+    STR_CLASS_DIGIT,		/* Unicode digit characters. */
+    STR_CLASS_GRAPH,		/* Unicode printing characters, excluding
+				 * space. */
+    STR_CLASS_LOWER,		/* Unicode lower-case alphabet characters. */
+    STR_CLASS_PRINT,		/* Unicode printing characters, including
+				 * spaces. */
+    STR_CLASS_PUNCT,		/* Unicode punctuation characters. */
+    STR_CLASS_SPACE,		/* Unicode space characters. */
+    STR_CLASS_UPPER,		/* Unicode upper-case alphabet characters. */
+    STR_CLASS_WORD,		/* Unicode word (alphabetic, digit, connector
+				 * punctuation) characters. */
+    STR_CLASS_XDIGIT		/* Characters that can be used as digits in
+				 * hexadecimal numbers ([0-9A-Fa-f]). */
+} InstStringClassType;
+
+typedef struct StringClassDesc {
+    const char *name;		/* Name of the class. */
+    int (*comparator)(int);	/* Function to test if a single unicode
+				 * character is a member of the class. */
+} StringClassDesc;
+
+MODULE_SCOPE StringClassDesc const tclStringClassTable[];
+
+/*
  * Compilation of some Tcl constructs such as if commands and the logical or
  * (||) and logical and (&&) operators in expressions requires the generation
  * of forward jumps. Since the PC target of these jumps isn't known when the
@@ -815,6 +996,10 @@ typedef struct ForeachInfo {
 } ForeachInfo;
 
 MODULE_SCOPE const AuxDataType tclForeachInfoType;
+MODULE_SCOPE const AuxDataType tclNewForeachInfoType;
+
+#define FOREACHINFO(envPtr, index) \
+    ((ForeachInfo*)((envPtr)->auxDataArrayPtr[TclGetUInt4AtPtr(index)].clientData))
 
 /*
  * Structure used to hold information about a switch command that is needed
@@ -829,6 +1014,9 @@ typedef struct JumptableInfo {
 
 MODULE_SCOPE const AuxDataType tclJumptableInfoType;
 
+#define JUMPTABLEINFO(envPtr, index) \
+    ((JumptableInfo*)((envPtr)->auxDataArrayPtr[TclGetUInt4AtPtr(index)].clientData))
+
 /*
  * Structure used to hold information about a [dict update] command that is
  * needed during program execution. These structures are stored in CompileEnv
@@ -847,6 +1035,9 @@ typedef struct {
 
 MODULE_SCOPE const AuxDataType tclDictUpdateInfoType;
 
+#define DICTUPDATEINFO(envPtr, index) \
+    ((DictUpdateInfo*)((envPtr)->auxDataArrayPtr[TclGetUInt4AtPtr(index)].clientData))
+
 /*
  * ClientData type used by the math operator commands.
  */
@@ -884,7 +1075,12 @@ MODULE_SCOPE ByteCode *	TclCompileObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
  *----------------------------------------------------------------
  */
 
+MODULE_SCOPE int	TclAttemptCompileProc(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, int depth, Command *cmdPtr,
+			    CompileEnv *envPtr);
 MODULE_SCOPE void	TclCleanupByteCode(ByteCode *codePtr);
+MODULE_SCOPE void	TclCleanupStackForBreakContinue(CompileEnv *envPtr,
+			    ExceptionAux *auxPtr);
 MODULE_SCOPE void	TclCompileCmdWord(Tcl_Interp *interp,
 			    Tcl_Token *tokenPtr, int count,
 			    CompileEnv *envPtr);
@@ -893,6 +1089,9 @@ MODULE_SCOPE void	TclCompileExpr(Tcl_Interp *interp, const char *script,
 MODULE_SCOPE void	TclCompileExprWords(Tcl_Interp *interp,
 			    Tcl_Token *tokenPtr, int numWords,
 			    CompileEnv *envPtr);
+MODULE_SCOPE void	TclCompileInvocation(Tcl_Interp *interp,
+			    Tcl_Token *tokenPtr, Tcl_Obj *cmdObj, int numWords,
+			    CompileEnv *envPtr);
 MODULE_SCOPE void	TclCompileScript(Tcl_Interp *interp,
 			    const char *script, int numBytes,
 			    CompileEnv *envPtr);
@@ -917,16 +1116,16 @@ MODULE_SCOPE void	TclDeleteLiteralTable(Tcl_Interp *interp,
 			    LiteralTable *tablePtr);
 MODULE_SCOPE void	TclEmitForwardJump(CompileEnv *envPtr,
 			    TclJumpType jumpType, JumpFixup *jumpFixupPtr);
+MODULE_SCOPE void	TclEmitInvoke(CompileEnv *envPtr, int opcode, ...);
 MODULE_SCOPE ExceptionRange * TclGetExceptionRangeForPc(unsigned char *pc,
 			    int catchOnly, ByteCode *codePtr);
 MODULE_SCOPE void	TclExpandJumpFixupArray(JumpFixupArray *fixupArrayPtr);
 MODULE_SCOPE int	TclNRExecuteByteCode(Tcl_Interp *interp,
 			    ByteCode *codePtr);
+MODULE_SCOPE Tcl_Obj *	TclFetchLiteral(CompileEnv *envPtr, unsigned int index);
 MODULE_SCOPE void	TclFinalizeAuxDataTypeTable(void);
 MODULE_SCOPE int	TclFindCompiledLocal(const char *name, int nameChars,
 			    int create, CompileEnv *envPtr);
-MODULE_SCOPE LiteralEntry * TclLookupLiteralEntry(Tcl_Interp *interp,
-			    Tcl_Obj *objPtr);
 MODULE_SCOPE int	TclFixupForwardJump(CompileEnv *envPtr,
 			    JumpFixup *jumpFixupPtr, int jumpDist,
 			    int distThreshold);
@@ -935,16 +1134,28 @@ MODULE_SCOPE void	TclFreeJumpFixupArray(JumpFixupArray *fixupArrayPtr);
 MODULE_SCOPE void	TclInitAuxDataTypeTable(void);
 MODULE_SCOPE void	TclInitByteCodeObj(Tcl_Obj *objPtr,
 			    CompileEnv *envPtr);
-MODULE_SCOPE void	TclInitCompilation(void);
 MODULE_SCOPE void	TclInitCompileEnv(Tcl_Interp *interp,
 			    CompileEnv *envPtr, const char *string,
 			    int numBytes, const CmdFrame *invoker, int word);
 MODULE_SCOPE void	TclInitJumpFixupArray(JumpFixupArray *fixupArrayPtr);
 MODULE_SCOPE void	TclInitLiteralTable(LiteralTable *tablePtr);
+MODULE_SCOPE ExceptionRange *TclGetInnermostExceptionRange(CompileEnv *envPtr,
+			    int returnCode, ExceptionAux **auxPtrPtr);
+MODULE_SCOPE void	TclAddLoopBreakFixup(CompileEnv *envPtr,
+			    ExceptionAux *auxPtr);
+MODULE_SCOPE void	TclAddLoopContinueFixup(CompileEnv *envPtr,
+			    ExceptionAux *auxPtr);
+MODULE_SCOPE void	TclFinalizeLoopExceptionRange(CompileEnv *envPtr,
+			    int range);
 #ifdef TCL_COMPILE_STATS
 MODULE_SCOPE char *	TclLiteralStats(LiteralTable *tablePtr);
 MODULE_SCOPE int	TclLog2(int value);
 #endif
+MODULE_SCOPE int	TclLocalScalar(const char *bytes, int numBytes,
+			    CompileEnv *envPtr);
+MODULE_SCOPE int	TclLocalScalarFromToken(Tcl_Token *tokenPtr,
+			    CompileEnv *envPtr);
+MODULE_SCOPE void	TclOptimizeBytecode(void *envPtr);
 #ifdef TCL_COMPILE_DEBUG
 MODULE_SCOPE void	TclPrintByteCodeObj(Tcl_Interp *interp,
 			    Tcl_Obj *objPtr);
@@ -955,9 +1166,10 @@ MODULE_SCOPE void	TclPrintObject(FILE *outFile,
 			    Tcl_Obj *objPtr, int maxChars);
 MODULE_SCOPE void	TclPrintSource(FILE *outFile,
 			    const char *string, int maxChars);
-MODULE_SCOPE void	TclRegisterAuxDataType(const AuxDataType *typePtr);
-MODULE_SCOPE int	TclRegisterLiteral(CompileEnv *envPtr,
-			    char *bytes, int length, int flags);
+MODULE_SCOPE void	TclPushVarName(Tcl_Interp *interp,
+			    Tcl_Token *varTokenPtr, CompileEnv *envPtr,
+			    int flags, int *localIndexPtr,
+			    int *isScalarPtr);
 MODULE_SCOPE void	TclReleaseLiteral(Tcl_Interp *interp, Tcl_Obj *objPtr);
 MODULE_SCOPE void	TclInvalidateCmdLiteral(Tcl_Interp *interp, 
 			    const char *name, Namespace *nsPtr);
@@ -980,12 +1192,15 @@ MODULE_SCOPE void	TclVerifyLocalLiteralTable(CompileEnv *envPtr);
 MODULE_SCOPE int	TclWordKnownAtCompileTime(Tcl_Token *tokenPtr,
 			    Tcl_Obj *valuePtr);
 MODULE_SCOPE void	TclLogCommandInfo(Tcl_Interp *interp,
-					  const char *script,
-					  const char *command, int length,
-					  const unsigned char *pc, Tcl_Obj **tosPtr); 
+			    const char *script, const char *command,
+			    int length, const unsigned char *pc,
+			    Tcl_Obj **tosPtr); 
 MODULE_SCOPE Tcl_Obj	*TclGetInnerContext(Tcl_Interp *interp,
-					    const unsigned char *pc, Tcl_Obj **tosPtr);
+			    const unsigned char *pc, Tcl_Obj **tosPtr);
 MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
+MODULE_SCOPE int	TclPushProcCallFrame(ClientData clientData,
+			    register Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const objv[], int isLambda);
 
 
 /*
@@ -995,6 +1210,15 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
  *----------------------------------------------------------------
  */
 
+/*
+ * Simplified form to access AuxData.
+ *
+ * ClientData TclFetchAuxData(CompileEng *envPtr, int index);
+ */
+
+#define TclFetchAuxData(envPtr, index) \
+    (envPtr)->auxDataArrayPtr[(index)].clientData
+
 #define LITERAL_ON_HEAP		0x01
 #define LITERAL_CMD_NAME	0x02
 
@@ -1039,6 +1263,21 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
 	(envPtr)->currStackDepth += (delta);				\
     } while (0)
 
+#define TclGetStackDepth(envPtr)		\
+    ((envPtr)->currStackDepth)
+
+#define TclSetStackDepth(depth, envPtr)		\
+    (envPtr)->currStackDepth = (depth)
+
+#define TclCheckStackDepth(depth, envPtr)				\
+    do {								\
+	int dd = (depth);						\
+	if (dd != (envPtr)->currStackDepth) {				\
+	    Tcl_Panic("bad stack depth computations: is %i, should be %i", \
+		    (envPtr)->currStackDepth, dd);		\
+	}								\
+    } while (0)
+
 /*
  * Macro used to update the stack requirements. It is called by the macros
  * TclEmitOpCode, TclEmitInst1 and TclEmitInst4.
@@ -1061,6 +1300,18 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
     } while (0)
 
 /*
+ * Macros used to update the flag that indicates if we are at the start of a
+ * command, based on whether the opcode is INST_START_COMMAND.
+ *
+ * void TclUpdateAtCmdStart(unsigned char op, CompileEnv *envPtr);
+ */
+
+#define TclUpdateAtCmdStart(op, envPtr) \
+    if ((envPtr)->atCmdStart < 2) {				     \
+	(envPtr)->atCmdStart = ((op) == INST_START_CMD ? 1 : 0);     \
+    }
+
+/*
  * Macro to emit an opcode byte into a CompileEnv's code array. The ANSI C
  * "prototype" for this macro is:
  *
@@ -1073,7 +1324,7 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
 	    TclExpandCodeArray(envPtr);				\
 	}							\
 	*(envPtr)->codeNext++ = (unsigned char) (op);		\
-	(envPtr)->atCmdStart = ((op) == INST_START_CMD);	\
+	TclUpdateAtCmdStart(op, envPtr);			\
 	TclUpdateStackReqs(op, 0, envPtr);			\
     } while (0)
 
@@ -1125,7 +1376,7 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
 	}								\
 	*(envPtr)->codeNext++ = (unsigned char) (op);			\
 	*(envPtr)->codeNext++ = (unsigned char) ((unsigned int) (i));	\
-	(envPtr)->atCmdStart = ((op) == INST_START_CMD);		\
+	TclUpdateAtCmdStart(op, envPtr);				\
 	TclUpdateStackReqs(op, i, envPtr);				\
     } while (0)
 
@@ -1143,7 +1394,7 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
 		(unsigned char) ((unsigned int) (i) >>  8);	\
 	*(envPtr)->codeNext++ =					\
 		(unsigned char) ((unsigned int) (i)      );	\
-	(envPtr)->atCmdStart = ((op) == INST_START_CMD);	\
+	TclUpdateAtCmdStart(op, envPtr);			\
 	TclUpdateStackReqs(op, i, envPtr);			\
     } while (0)
 
@@ -1276,16 +1527,16 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
 #define TclMax(i, j)	((((int) i) > ((int) j))? (i) : (j))
 
 /*
- * Convenience macro for use when compiling bodies of commands. The ANSI C
- * "prototype" for this macro is:
+ * Convenience macros for use when compiling bodies of commands. The ANSI C
+ * "prototype" for these macros are:
  *
- * static void		CompileBody(CompileEnv *envPtr, Tcl_Token *tokenPtr,
- *			    Tcl_Interp *interp);
+ * static void		BODY(Tcl_Token *tokenPtr, int word);
  */
 
-#define CompileBody(envPtr, tokenPtr, interp) \
-    TclCompileCmdWord((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
-	    (envPtr))
+#define BODY(tokenPtr, word)						\
+    SetLineInformation((word));						\
+    TclCompileCmdWord(interp, (tokenPtr)+1, (tokenPtr)->numComponents,	\
+	    envPtr)
 
 /*
  * Convenience macro for use when compiling tokens to be pushed. The ANSI C
@@ -1299,15 +1550,19 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
     TclCompileTokens((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
 	    (envPtr));
 /*
- * Convenience macro for use when pushing literals. The ANSI C "prototype" for
- * this macro is:
+ * Convenience macros for use when pushing literals. The ANSI C "prototype" for
+ * these macros are:
  *
  * static void		PushLiteral(CompileEnv *envPtr,
  *			    const char *string, int length);
+ * static void		PushStringLiteral(CompileEnv *envPtr,
+ *			    const char *string);
  */
 
 #define PushLiteral(envPtr, string, length) \
     TclEmitPush(TclRegisterNewLiteral((envPtr), (string), (length)), (envPtr))
+#define PushStringLiteral(envPtr, string) \
+    PushLiteral((envPtr), (string), (int) (sizeof(string "") - 1))
 
 /*
  * Macro to advance to the next token; it is more mnemonic than the address
@@ -1336,14 +1591,11 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
  * of LOOP ranges is an interesting datum for debugging purposes, and that is
  * what we compute now.
  *
- * static int	DeclareExceptionRange(CompileEnv *envPtr, int type);
  * static int	ExceptionRangeStarts(CompileEnv *envPtr, int index);
  * static void	ExceptionRangeEnds(CompileEnv *envPtr, int index);
  * static void	ExceptionRangeTarget(CompileEnv *envPtr, int index, LABEL);
  */
 
-#define DeclareExceptionRange(envPtr, type) \
-    (TclCreateExceptRange((type), (envPtr)))
 #define ExceptionRangeStarts(envPtr, index) \
     (((envPtr)->exceptDepth++),						\
     ((envPtr)->maxExceptDepth =						\
@@ -1374,6 +1626,74 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
 	    Tcl_DStringLength(dsPtr), /*flags*/ 0)
 
 /*
+ * Macro that encapsulates an efficiency trick that avoids a function call for
+ * the simplest of compiles. The ANSI C "prototype" for this macro is:
+ *
+ * static void		CompileWord(CompileEnv *envPtr, Tcl_Token *tokenPtr,
+ *			    Tcl_Interp *interp, int word);
+ */
+
+#define CompileWord(envPtr, tokenPtr, interp, word) \
+    if ((tokenPtr)->type == TCL_TOKEN_SIMPLE_WORD) {			\
+	PushLiteral((envPtr), (tokenPtr)[1].start, (tokenPtr)[1].size);	\
+    } else {								\
+	SetLineInformation((word));					\
+	CompileTokens((envPtr), (tokenPtr), (interp));			\
+    }
+
+/*
+ * TIP #280: Remember the per-word line information of the current command. An
+ * index is used instead of a pointer as recursive compilation may reallocate,
+ * i.e. move, the array. This is also the reason to save the nuloc now, it may
+ * change during the course of the function.
+ *
+ * Macro to encapsulate the variable definition and setup.
+ */
+
+#define DefineLineInformation \
+    ExtCmdLoc *mapPtr = envPtr->extCmdMapPtr;				\
+    int eclIndex = mapPtr->nuloc - 1
+
+#define SetLineInformation(word) \
+    envPtr->line = mapPtr->loc[eclIndex].line[(word)];			\
+    envPtr->clNext = mapPtr->loc[eclIndex].next[(word)]
+
+#define PushVarNameWord(i,v,e,f,l,sc,word) \
+    SetLineInformation(word);						\
+    TclPushVarName(i,v,e,f,l,sc)					
+
+/*
+ * Often want to issue one of two versions of an instruction based on whether
+ * the argument will fit in a single byte or not. This makes it much clearer.
+ */
+
+#define Emit14Inst(nm,idx,envPtr) \
+    if (idx <= 255) {							\
+	TclEmitInstInt1(nm##1,idx,envPtr);				\
+    } else {								\
+	TclEmitInstInt4(nm##4,idx,envPtr);				\
+    }
+
+/*
+ * How to get an anonymous local variable (used for holding temporary values
+ * off the stack) or a local simple scalar.
+ */
+
+#define AnonymousLocal(envPtr) \
+    (TclFindCompiledLocal(NULL, /*nameChars*/ 0, /*create*/ 1, (envPtr)))
+#define LocalScalar(chars,len,envPtr) \
+    TclLocalScalar(chars, len, envPtr)
+#define LocalScalarFromToken(tokenPtr,envPtr) \
+    TclLocalScalarFromToken(tokenPtr, envPtr)
+
+/*
+ * Flags bits used by TclPushVarName.
+ */
+
+#define TCL_NO_LARGE_INDEX 1	/* Do not return localIndex value > 255 */
+#define TCL_NO_ELEMENT 2	/* Do not push the array element. */
+
+/*
  * DTrace probe macros (NOPs if DTrace support is not enabled).
  */
 
diff --git a/generic/tclConfig.c b/generic/tclConfig.c
index a4ba71a..2fb3e92 100644
--- a/generic/tclConfig.c
+++ b/generic/tclConfig.c
@@ -26,14 +26,15 @@
 #define ASSOC_KEY	"tclPackageAboutDict"
 
 /*
- * A ClientData struct for the QueryConfig command.  Store the two bits
+ * A ClientData struct for the QueryConfig command.  Store the three bits
  * of data we need; the package name for which we store a config dict,
- * and the (Tcl_Interp *) in which it is stored.
+ * the (Tcl_Interp *) in which it is stored, and the encoding.
  */
 
 typedef struct QCCD {
     Tcl_Obj *pkg;
     Tcl_Interp *interp;
+    char *encoding;
 } QCCD;
 
 /*
@@ -75,22 +76,28 @@ Tcl_RegisterConfig(
     const char *valEncoding)	/* Name of the encoding used to store the
 				 * configuration values, ASCII, thus UTF-8. */
 {
+    Tcl_Obj *pDB, *pkgDict;
     Tcl_DString cmdName;
     const Tcl_Config *cfg;
-    Tcl_Encoding venc = Tcl_GetEncoding(NULL, valEncoding);
     QCCD *cdPtr = ckalloc(sizeof(QCCD));
 
     cdPtr->interp = interp;
+    if (valEncoding) {
+	cdPtr->encoding = ckalloc(strlen(valEncoding)+1);
+	strcpy(cdPtr->encoding, valEncoding);
+    } else {
+	cdPtr->encoding = NULL;
+    }
     cdPtr->pkg = Tcl_NewStringObj(pkgName, -1);
 
     /*
      * Phase I: Adding the provided information to the internal database of
-     * package meta data. Only if we have an ok encoding.
+     * package meta data.
      *
      * Phase II: Create a command for querying this database, specific to the
-     * package registerting its configuration. This is the approved interface
+     * package registering its configuration. This is the approved interface
      * in TIP 59. In the future a more general interface should be done, as
-     * followup to TIP 59. Simply because our database is now general across
+     * follow-up to TIP 59. Simply because our database is now general across
      * packages, and not a structure tied to one package.
      *
      * Note, the created command will have a reference through its clientdata.
@@ -103,51 +110,35 @@ Tcl_RegisterConfig(
      * dictionaries visible at Tcl level. I.e. they are not filled
      */
 
-    if (venc != NULL) {
-	Tcl_Obj *pkgDict, *pDB = GetConfigDict(interp);
-
-	/*
-	 * Retrieve package specific configuration...
-	 */
-
-	if (Tcl_DictObjGet(interp, pDB, cdPtr->pkg, &pkgDict) != TCL_OK
-		|| (pkgDict == NULL)) {
-	    pkgDict = Tcl_NewDictObj();
-	} else if (Tcl_IsShared(pkgDict)) {
-	    pkgDict = Tcl_DuplicateObj(pkgDict);
-	}
-
-	/*
-	 * Extend the package configuration...
-	 */
-
-	for (cfg=configuration ; cfg->key!=NULL && cfg->key[0]!='\0' ; cfg++) {
-	    Tcl_DString conv;
-	    const char *convValue =
-		    Tcl_ExternalToUtfDString(venc, cfg->value, -1, &conv);
+    pDB = GetConfigDict(interp);
 
-	    /*
-	     * We know that the keys are in ASCII/UTF-8, so for them is no
-	     * conversion required.
-	     */
+    /*
+     * Retrieve package specific configuration...
+     */
 
-	    Tcl_DictObjPut(interp, pkgDict, Tcl_NewStringObj(cfg->key, -1),
-		    Tcl_NewStringObj(convValue, -1));
-	    Tcl_DStringFree(&conv);
-	}
+    if (Tcl_DictObjGet(interp, pDB, cdPtr->pkg, &pkgDict) != TCL_OK
+	    || (pkgDict == NULL)) {
+	pkgDict = Tcl_NewDictObj();
+    } else if (Tcl_IsShared(pkgDict)) {
+	pkgDict = Tcl_DuplicateObj(pkgDict);
+    }
 
-	/*
-	 * We're now done with the encoding, so drop it.
-	 */
+    /*
+     * Extend the package configuration...
+     * We cannot assume that the encodings are initialized, therefore
+     * store the value as-is in a byte array. See Bug [9b2e636361].
+     */
 
-	Tcl_FreeEncoding(venc);
+    for (cfg=configuration ; cfg->key!=NULL && cfg->key[0]!='\0' ; cfg++) {
+	Tcl_DictObjPut(interp, pkgDict, Tcl_NewStringObj(cfg->key, -1),
+		Tcl_NewByteArrayObj((unsigned char *)cfg->value, strlen(cfg->value)));
+    }
 
-	/*
-	 * Write the changes back into the overall database.
-	 */
+    /*
+     * Write the changes back into the overall database.
+     */
 
-	Tcl_DictObjPut(interp, pDB, cdPtr->pkg, pkgDict);
-    }
+    Tcl_DictObjPut(interp, pDB, cdPtr->pkg, pkgDict);
 
     /*
      * Now create the interface command for retrieval of the package
@@ -218,6 +209,9 @@ QueryConfigObjCmd(
     enum subcmds {
 	CFG_GET, CFG_LIST
     };
+    Tcl_DString conv;
+    Tcl_Encoding venc = NULL;
+    const char *value;
 
     if ((objc < 2) || (objc > 3)) {
 	Tcl_WrongNumArgs(interp, 1, objv, "subcommand ?arg?");
@@ -257,7 +251,21 @@ QueryConfigObjCmd(
 	    return TCL_ERROR;
 	}
 
-	Tcl_SetObjResult(interp, val);
+	if (cdPtr->encoding) {
+	    venc = Tcl_GetEncoding(interp, cdPtr->encoding);
+	    if (!venc) {
+		return TCL_ERROR;
+	    }
+	}
+	/*
+	 * Value is stored as-is in a byte array, see Bug [9b2e636361],
+	 * so we have to decode it first.
+	 */
+	value = (const char *) Tcl_GetByteArrayFromObj(val, &n);
+	value = Tcl_ExternalToUtfDString(venc, value, n, &conv);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(value,
+		Tcl_DStringLength(&conv)));
+	Tcl_DStringFree(&conv);
 	return TCL_OK;
 
     case CFG_LIST:
@@ -324,7 +332,10 @@ QueryConfigDelete(
 
     Tcl_DictObjRemove(NULL, pDB, pkgName);
     Tcl_DecrRefCount(pkgName);
-    ckfree(cdPtr);
+    if (cdPtr->encoding) {
+	ckfree((char *)cdPtr->encoding);
+    }
+    ckfree((char *)cdPtr);
 }
 
 /*
@@ -366,7 +377,7 @@ GetConfigDict(
  *
  *	This function is associated with the "Package About dict" assoc data
  *	for an interpreter; it is invoked when the interpreter is deleted in
- *	order to free the information assoicated with any pending error
+ *	order to free the information associated with any pending error
  *	reports.
  *
  * Results:
diff --git a/generic/tclDate.c b/generic/tclDate.c
index 14bac51..6222a8a 100644
--- a/generic/tclDate.c
+++ b/generic/tclDate.c
@@ -2686,7 +2686,7 @@ TclDatelex(
 
     location->first_column = yyInput - info->dateStart;
     for ( ; ; ) {
-	while (isspace(UCHAR(*yyInput))) {
+	while (TclIsSpaceProc(*yyInput)) {
 	    yyInput++;
 	}
 
diff --git a/generic/tclDecls.h b/generic/tclDecls.h
index 1e2a68b..91c0add 100644
--- a/generic/tclDecls.h
+++ b/generic/tclDecls.h
@@ -31,6 +31,10 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
@@ -59,7 +63,7 @@ EXTERN void		Tcl_DbCkfree(char *ptr, const char *file, int line);
 /* 8 */
 EXTERN char *		Tcl_DbCkrealloc(char *ptr, unsigned int size,
 				const char *file, int line);
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
 /* 9 */
 EXTERN void		Tcl_CreateFileHandler(int fd, int mask,
 				Tcl_FileProc *proc, ClientData clientData);
@@ -69,7 +73,7 @@ EXTERN void		Tcl_CreateFileHandler(int fd, int mask,
 EXTERN void		Tcl_CreateFileHandler(int fd, int mask,
 				Tcl_FileProc *proc, ClientData clientData);
 #endif /* MACOSX */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
 /* 10 */
 EXTERN void		Tcl_DeleteFileHandler(int fd);
 #endif /* UNIX */
@@ -507,7 +511,7 @@ EXTERN Tcl_Interp *	Tcl_GetMaster(Tcl_Interp *interp);
 EXTERN const char *	Tcl_GetNameOfExecutable(void);
 /* 166 */
 EXTERN Tcl_Obj *	Tcl_GetObjResult(Tcl_Interp *interp);
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
 /* 167 */
 EXTERN int		Tcl_GetOpenFile(Tcl_Interp *interp,
 				const char *chanID, int forWriting,
@@ -1807,8 +1811,12 @@ EXTERN void *		Tcl_FindSymbol(Tcl_Interp *interp,
 /* 629 */
 EXTERN int		Tcl_FSUnloadFile(Tcl_Interp *interp,
 				Tcl_LoadHandle handlePtr);
+/* 630 */
+EXTERN void		Tcl_ZlibStreamSetCompressionDictionary(
+				Tcl_ZlibStream zhandle,
+				Tcl_Obj *compressionDictionaryObj);
 
-typedef struct TclStubHooks {
+typedef struct {
     const struct TclPlatStubs *tclPlatStubs;
     const struct TclIntStubs *tclIntStubs;
     const struct TclIntPlatStubs *tclIntPlatStubs;
@@ -1816,7 +1824,7 @@ typedef struct TclStubHooks {
 
 typedef struct TclStubs {
     int magic;
-    const struct TclStubHooks *hooks;
+    const TclStubHooks *hooks;
 
     int (*tcl_PkgProvideEx) (Tcl_Interp *interp, const char *name, const char *version, const void *clientData); /* 0 */
     CONST84_RETURN char * (*tcl_PkgRequireEx) (Tcl_Interp *interp, const char *name, const char *version, int exact, void *clientDataPtr); /* 1 */
@@ -1827,19 +1835,19 @@ typedef struct TclStubs {
     char * (*tcl_DbCkalloc) (unsigned int size, const char *file, int line); /* 6 */
     void (*tcl_DbCkfree) (char *ptr, const char *file, int line); /* 7 */
     char * (*tcl_DbCkrealloc) (char *ptr, unsigned int size, const char *file, int line); /* 8 */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
     void (*tcl_CreateFileHandler) (int fd, int mask, Tcl_FileProc *proc, ClientData clientData); /* 9 */
 #endif /* UNIX */
-#if defined(__WIN32__) /* WIN */
+#if defined(_WIN32) /* WIN */
     void (*reserved9)(void);
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
     void (*tcl_CreateFileHandler) (int fd, int mask, Tcl_FileProc *proc, ClientData clientData); /* 9 */
 #endif /* MACOSX */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
     void (*tcl_DeleteFileHandler) (int fd); /* 10 */
 #endif /* UNIX */
-#if defined(__WIN32__) /* WIN */
+#if defined(_WIN32) /* WIN */
     void (*reserved10)(void);
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
@@ -2001,10 +2009,10 @@ typedef struct TclStubs {
     Tcl_Interp * (*tcl_GetMaster) (Tcl_Interp *interp); /* 164 */
     const char * (*tcl_GetNameOfExecutable) (void); /* 165 */
     Tcl_Obj * (*tcl_GetObjResult) (Tcl_Interp *interp); /* 166 */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
     int (*tcl_GetOpenFile) (Tcl_Interp *interp, const char *chanID, int forWriting, int checkUsage, ClientData *filePtr); /* 167 */
 #endif /* UNIX */
-#if defined(__WIN32__) /* WIN */
+#if defined(_WIN32) /* WIN */
     void (*reserved167)(void);
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
@@ -2472,12 +2480,11 @@ typedef struct TclStubs {
     int (*tcl_LoadFile) (Tcl_Interp *interp, Tcl_Obj *pathPtr, const char *const symv[], int flags, void *procPtrs, Tcl_LoadHandle *handlePtr); /* 627 */
     void * (*tcl_FindSymbol) (Tcl_Interp *interp, Tcl_LoadHandle handle, const char *symbol); /* 628 */
     int (*tcl_FSUnloadFile) (Tcl_Interp *interp, Tcl_LoadHandle handlePtr); /* 629 */
+    void (*tcl_ZlibStreamSetCompressionDictionary) (Tcl_ZlibStream zhandle, Tcl_Obj *compressionDictionaryObj); /* 630 */
 } TclStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern const TclStubs *tclStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
@@ -2506,7 +2513,7 @@ extern const TclStubs *tclStubsPtr;
 	(tclStubsPtr->tcl_DbCkfree) /* 7 */
 #define Tcl_DbCkrealloc \
 	(tclStubsPtr->tcl_DbCkrealloc) /* 8 */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
 #define Tcl_CreateFileHandler \
 	(tclStubsPtr->tcl_CreateFileHandler) /* 9 */
 #endif /* UNIX */
@@ -2514,7 +2521,7 @@ extern const TclStubs *tclStubsPtr;
 #define Tcl_CreateFileHandler \
 	(tclStubsPtr->tcl_CreateFileHandler) /* 9 */
 #endif /* MACOSX */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
 #define Tcl_DeleteFileHandler \
 	(tclStubsPtr->tcl_DeleteFileHandler) /* 10 */
 #endif /* UNIX */
@@ -2834,7 +2841,7 @@ extern const TclStubs *tclStubsPtr;
 	(tclStubsPtr->tcl_GetNameOfExecutable) /* 165 */
 #define Tcl_GetObjResult \
 	(tclStubsPtr->tcl_GetObjResult) /* 166 */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
 #define Tcl_GetOpenFile \
 	(tclStubsPtr->tcl_GetOpenFile) /* 167 */
 #endif /* UNIX */
@@ -3764,6 +3771,8 @@ extern const TclStubs *tclStubsPtr;
 	(tclStubsPtr->tcl_FindSymbol) /* 628 */
 #define Tcl_FSUnloadFile \
 	(tclStubsPtr->tcl_FSUnloadFile) /* 629 */
+#define Tcl_ZlibStreamSetCompressionDictionary \
+	(tclStubsPtr->tcl_ZlibStreamSetCompressionDictionary) /* 630 */
 
 #endif /* defined(USE_TCL_STUBS) */
 
@@ -3776,6 +3785,7 @@ extern const TclStubs *tclStubsPtr;
 #   undef Tcl_Init
 #   undef Tcl_SetPanicProc
 #   undef Tcl_SetVar
+#   undef Tcl_ObjSetVar2
 #   undef Tcl_StaticPackage
 #   undef TclFSGetNativePath
 #   define Tcl_CreateInterp() (tclStubsPtr->tcl_CreateInterp())
@@ -3784,6 +3794,8 @@ extern const TclStubs *tclStubsPtr;
 #   define Tcl_SetPanicProc(proc) (tclStubsPtr->tcl_SetPanicProc(proc))
 #   define Tcl_SetVar(interp, varName, newValue, flags) \
 	    (tclStubsPtr->tcl_SetVar(interp, varName, newValue, flags))
+#   define Tcl_ObjSetVar2(interp, part1, part2, newValue, flags) \
+	    (tclStubsPtr->tcl_ObjSetVar2(interp, part1, part2, newValue, flags))
 #endif
 
 #if defined(_WIN32) && defined(UNICODE)
@@ -3796,4 +3808,110 @@ extern const TclStubs *tclStubsPtr;
 #undef TCL_STORAGE_CLASS
 #define TCL_STORAGE_CLASS DLLIMPORT
 
+#undef Tcl_SeekOld
+#undef Tcl_TellOld
+
+#undef Tcl_PkgPresent
+#define Tcl_PkgPresent(interp, name, version, exact) \
+	Tcl_PkgPresentEx(interp, name, version, exact, NULL)
+#undef Tcl_PkgProvide
+#define Tcl_PkgProvide(interp, name, version) \
+	Tcl_PkgProvideEx(interp, name, version, NULL)
+#undef Tcl_PkgRequire
+#define Tcl_PkgRequire(interp, name, version, exact) \
+	Tcl_PkgRequireEx(interp, name, version, exact, NULL)
+#undef Tcl_GetIndexFromObj
+#define Tcl_GetIndexFromObj(interp, objPtr, tablePtr, msg, flags, indexPtr) \
+	Tcl_GetIndexFromObjStruct(interp, objPtr, tablePtr, \
+	sizeof(char *), msg, flags, indexPtr)
+#undef Tcl_NewBooleanObj
+#define Tcl_NewBooleanObj(boolValue) \
+	Tcl_NewIntObj((boolValue)!=0)
+#undef Tcl_DbNewBooleanObj
+#define Tcl_DbNewBooleanObj(boolValue, file, line) \
+	Tcl_DbNewLongObj((boolValue)!=0, file, line)
+#undef Tcl_SetBooleanObj
+#define Tcl_SetBooleanObj(objPtr, boolValue) \
+	Tcl_SetIntObj((objPtr), (boolValue)!=0)
+#undef Tcl_SetVar
+#define Tcl_SetVar(interp, varName, newValue, flags) \
+	Tcl_SetVar2(interp, varName, NULL, newValue, flags)
+#undef Tcl_UnsetVar
+#define Tcl_UnsetVar(interp, varName, flags) \
+	Tcl_UnsetVar2(interp, varName, NULL, flags)
+#undef Tcl_GetVar
+#define Tcl_GetVar(interp, varName, flags) \
+	Tcl_GetVar2(interp, varName, NULL, flags)
+#undef Tcl_TraceVar
+#define Tcl_TraceVar(interp, varName, flags, proc, clientData) \
+	Tcl_TraceVar2(interp, varName, NULL, flags, proc, clientData)
+#undef Tcl_UntraceVar
+#define Tcl_UntraceVar(interp, varName, flags, proc, clientData) \
+	Tcl_UntraceVar2(interp, varName, NULL, flags, proc, clientData)
+#undef Tcl_VarTraceInfo
+#define Tcl_VarTraceInfo(interp, varName, flags, proc, prevClientData) \
+	Tcl_VarTraceInfo2(interp, varName, NULL, flags, proc, prevClientData)
+#undef Tcl_UpVar
+#define Tcl_UpVar(interp, frameName, varName, localName, flags) \
+	Tcl_UpVar2(interp, frameName, varName, NULL, localName, flags)
+
+#if defined(USE_TCL_STUBS) && !defined(USE_TCL_STUB_PROCS)
+#   if defined(__CYGWIN__) && defined(TCL_WIDE_INT_IS_LONG)
+/* On Cygwin64, long is 64-bit while on Win64 long is 32-bit. Therefore
+ * we have to make sure that all stub entries on Cygwin64 follow the
+ * Win64 signature. Cygwin64 stubbed extensions cannot use those stub
+ * entries any more, they should use the 64-bit alternatives where
+ * possible. Tcl 9 must find a better solution, but that cannot be done
+ * without introducing a binary incompatibility.
+ */
+#	undef Tcl_DbNewLongObj
+#	undef Tcl_GetLongFromObj
+#	undef Tcl_NewLongObj
+#	undef Tcl_SetLongObj
+#	undef Tcl_ExprLong
+#	undef Tcl_ExprLongObj
+#	undef Tcl_UniCharNcmp
+#	undef Tcl_UtfNcmp
+#	undef Tcl_UtfNcasecmp
+#	undef Tcl_UniCharNcasecmp
+#	define Tcl_DbNewLongObj ((Tcl_Obj*(*)(long,const char*,int))Tcl_DbNewWideIntObj)
+#	define Tcl_GetLongFromObj ((int(*)(Tcl_Interp*,Tcl_Obj*,long*))Tcl_GetWideIntFromObj)
+#	define Tcl_NewLongObj ((Tcl_Obj*(*)(long))Tcl_NewWideIntObj)
+#	define Tcl_SetLongObj ((void(*)(Tcl_Obj*,long))Tcl_SetWideIntObj)
+#	define Tcl_ExprLong TclExprLong
+	static inline int TclExprLong(Tcl_Interp *interp, const char *string, long *ptr){
+	    int intValue;
+	    int result = tclStubsPtr->tcl_ExprLong(interp, string, (long *)&intValue);
+	    if (result == TCL_OK) *ptr = (long)intValue;
+	    return result;
+	}
+#	define Tcl_ExprLongObj TclExprLongObj
+	static inline int TclExprLongObj(Tcl_Interp *interp, Tcl_Obj *obj, long *ptr){
+	    int intValue;
+	    int result = tclStubsPtr->tcl_ExprLongObj(interp, obj, (long *)&intValue);
+	    if (result == TCL_OK) *ptr = (long)intValue;
+	    return result;
+	}
+#	define Tcl_UniCharNcmp(ucs,uct,n) \
+		((int(*)(const Tcl_UniChar*,const Tcl_UniChar*,unsigned int))tclStubsPtr->tcl_UniCharNcmp)(ucs,uct,(unsigned int)(n))
+#	define Tcl_UtfNcmp(s1,s2,n) \
+		((int(*)(const char*,const char*,unsigned int))tclStubsPtr->tcl_UtfNcmp)(s1,s2,(unsigned int)(n))
+#	define Tcl_UtfNcasecmp(s1,s2,n) \
+		((int(*)(const char*,const char*,unsigned int))tclStubsPtr->tcl_UtfNcasecmp)(s1,s2,(unsigned int)(n))
+#	define Tcl_UniCharNcasecmp(ucs,uct,n) \
+		((int(*)(const Tcl_UniChar*,const Tcl_UniChar*,unsigned int))tclStubsPtr->tcl_UniCharNcasecmp)(ucs,uct,(unsigned int)(n))
+#   endif
+#endif
+
+/*
+ * Deprecated Tcl procedures:
+ */
+
+#undef Tcl_EvalObj
+#define Tcl_EvalObj(interp,objPtr) \
+    Tcl_EvalObjEx((interp),(objPtr),0)
+#undef Tcl_GlobalEvalObj
+#define Tcl_GlobalEvalObj(interp,objPtr) \
+    Tcl_EvalObjEx((interp),(objPtr),TCL_EVAL_GLOBAL)
+
 #endif /* _TCLDECLS */
diff --git a/generic/tclDictObj.c b/generic/tclDictObj.c
index 691fab9..15fbe1e 100644
--- a/generic/tclDictObj.c
+++ b/generic/tclDictObj.c
@@ -76,9 +76,12 @@ static int		FinalizeDictWith(ClientData data[],
 			    Tcl_Interp *interp, int result);
 static int		DictForNRCmd(ClientData dummy, Tcl_Interp *interp,
 			    int objc, Tcl_Obj *const *objv);
+static int		DictMapNRCmd(ClientData dummy, Tcl_Interp *interp,
+			    int objc, Tcl_Obj *const *objv);
 static int		DictForLoopCallback(ClientData data[],
 			    Tcl_Interp *interp, int result);
-
+static int		DictMapLoopCallback(ClientData data[],
+			    Tcl_Interp *interp, int result);
 
 /*
  * Table of dict subcommand names and implementations.
@@ -86,23 +89,24 @@ static int		DictForLoopCallback(ClientData data[],
 
 static const EnsembleImplMap implementationMap[] = {
     {"append",	DictAppendCmd,	TclCompileDictAppendCmd, NULL, NULL, 0 },
-    {"create",	DictCreateCmd, NULL, NULL, NULL, 0 },
-    {"exists",	DictExistsCmd, NULL, NULL, NULL, 0 },
-    {"filter",	DictFilterCmd, NULL, NULL, NULL, 0 },
+    {"create",	DictCreateCmd,	TclCompileDictCreateCmd, NULL, NULL, 0 },
+    {"exists",	DictExistsCmd,	TclCompileDictExistsCmd, NULL, NULL, 0 },
+    {"filter",	DictFilterCmd,	NULL, NULL, NULL, 0 },
     {"for",	NULL,		TclCompileDictForCmd, DictForNRCmd, NULL, 0 },
     {"get",	DictGetCmd,	TclCompileDictGetCmd, NULL, NULL, 0 },
     {"incr",	DictIncrCmd,	TclCompileDictIncrCmd, NULL, NULL, 0 },
-    {"info",	DictInfoCmd, NULL, NULL, NULL, 0 },
-    {"keys",	DictKeysCmd, NULL, NULL, NULL, 0 },
+    {"info",	DictInfoCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0 },
+    {"keys",	DictKeysCmd,	TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
     {"lappend",	DictLappendCmd,	TclCompileDictLappendCmd, NULL, NULL, 0 },
-    {"merge",	DictMergeCmd, NULL, NULL, NULL, 0 },
-    {"remove",	DictRemoveCmd, NULL, NULL, NULL, 0 },
+    {"map", 	NULL,       	TclCompileDictMapCmd, DictMapNRCmd, NULL, 0 },
+    {"merge",	DictMergeCmd,	TclCompileDictMergeCmd, NULL, NULL, 0 },
+    {"remove",	DictRemoveCmd,	TclCompileBasicMin1ArgCmd, NULL, NULL, 0 },
     {"replace",	DictReplaceCmd, NULL, NULL, NULL, 0 },
     {"set",	DictSetCmd,	TclCompileDictSetCmd, NULL, NULL, 0 },
-    {"size",	DictSizeCmd, NULL, NULL, NULL, 0 },
-    {"unset",	DictUnsetCmd, NULL, NULL, NULL, 0 },
+    {"size",	DictSizeCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0 },
+    {"unset",	DictUnsetCmd,	TclCompileDictUnsetCmd, NULL, NULL, 0 },
     {"update",	DictUpdateCmd,	TclCompileDictUpdateCmd, NULL, NULL, 0 },
-    {"values",	DictValuesCmd, NULL, NULL, NULL, 0 },
+    {"values",	DictValuesCmd,	TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
     {"with",	DictWithCmd,	TclCompileDictWithCmd, NULL, NULL, 0 },
     {NULL, NULL, NULL, NULL, NULL, 0}
 };
@@ -151,6 +155,13 @@ typedef struct Dict {
 } Dict;
 
 /*
+ * Accessor macro for converting between a Tcl_Obj* and a Dict. Note that this
+ * must be assignable as well as readable.
+ */
+
+#define DICT(dictObj)   (*((Dict **)&(dictObj)->internalRep.twoPtrValue.ptr1))
+
+/*
  * The structure below defines the dictionary object type by means of
  * functions that can be invoked by generic object code.
  */
@@ -181,6 +192,23 @@ static const Tcl_HashKeyType chainHashType = {
     AllocChainEntry,
     TclFreeObjEntry
 };
+
+/*
+ * Structure used in implementation of 'dict map' to hold the state that gets
+ * passed between parts of the implementation.
+ */
+
+typedef struct {
+    Tcl_Obj *keyVarObj;		/* The name of the variable that will have
+				 * keys assigned to it. */
+    Tcl_Obj *valueVarObj;	/* The name of the variable that will have
+				 * values assigned to it. */
+    Tcl_DictSearch search;	/* The dictionary search structure. */
+    Tcl_Obj *scriptObj;		/* The script to evaluate each time through
+				 * the loop. */
+    Tcl_Obj *accumulatorObj;	/* The dictionary used to accumulate the
+				 * results. */
+} DictMapStorage;
 
 /***** START OF FUNCTIONS IMPLEMENTING DICT CORE API *****/
 
@@ -291,6 +319,7 @@ DeleteChainEntry(
 	return 0;
     } else {
 	Tcl_Obj *valuePtr = Tcl_GetHashValue(&cPtr->entry);
+
 	TclDecrRefCount(valuePtr);
     }
 
@@ -340,7 +369,7 @@ DupDictInternalRep(
     Tcl_Obj *srcPtr,
     Tcl_Obj *copyPtr)
 {
-    Dict *oldDict = srcPtr->internalRep.otherValuePtr;
+    Dict *oldDict = DICT(srcPtr);
     Dict *newDict = ckalloc(sizeof(Dict));
     ChainEntry *cPtr;
 
@@ -375,7 +404,8 @@ DupDictInternalRep(
      * Store in the object.
      */
 
-    copyPtr->internalRep.otherValuePtr = newDict;
+    DICT(copyPtr) = newDict;
+    copyPtr->internalRep.twoPtrValue.ptr2 = NULL;
     copyPtr->typePtr = &tclDictType;
 }
 
@@ -401,14 +431,12 @@ static void
 FreeDictInternalRep(
     Tcl_Obj *dictPtr)
 {
-    Dict *dict = dictPtr->internalRep.otherValuePtr;
+    Dict *dict = DICT(dictPtr);
 
     dict->refcount--;
     if (dict->refcount <= 0) {
 	DeleteDict(dict);
     }
-
-    dictPtr->internalRep.otherValuePtr = NULL;	/* Belt and braces! */
     dictPtr->typePtr = NULL;
 }
 
@@ -468,7 +496,7 @@ UpdateStringOfDict(
 {
 #define LOCAL_SIZE 20
     int localFlags[LOCAL_SIZE], *flagPtr = NULL;
-    Dict *dict = dictPtr->internalRep.otherValuePtr;
+    Dict *dict = DICT(dictPtr);
     ChainEntry *cPtr;
     Tcl_Obj *keyPtr, *valuePtr;
     int i, length, bytesNeeded = 0;
@@ -581,7 +609,7 @@ SetDictFromAny(
     Tcl_Obj *objPtr)
 {
     Tcl_HashEntry *hPtr;
-    int isNew, result;
+    int isNew;
     Dict *dict = ckalloc(sizeof(Dict));
 
     InitChainTable(dict);
@@ -632,10 +660,9 @@ SetDictFromAny(
 	    const char *elemStart;
 	    int elemSize, literal;
 
-	    result = TclFindElement(interp, nextElem, (limit - nextElem),
-		    &elemStart, &nextElem, &elemSize, &literal);
-	    if (result != TCL_OK) {
-		goto errorExit;
+	    if (TclFindDictElement(interp, nextElem, (limit - nextElem),
+		    &elemStart, &nextElem, &elemSize, &literal) != TCL_OK) {
+		goto errorInFindDictElement;
 	    }
 	    if (elemStart == limit) {
 		break;
@@ -654,11 +681,10 @@ SetDictFromAny(
 			keyPtr->bytes);
 	    }
 
-	    result = TclFindElement(interp, nextElem, (limit - nextElem),
-		    &elemStart, &nextElem, &elemSize, &literal);
-	    if (result != TCL_OK) {
+	    if (TclFindDictElement(interp, nextElem, (limit - nextElem),
+		    &elemStart, &nextElem, &elemSize, &literal) != TCL_OK) {
 		TclDecrRefCount(keyPtr);
-		goto errorExit;
+		goto errorInFindDictElement;
 	    }
 
 	    if (literal) {
@@ -694,7 +720,8 @@ SetDictFromAny(
     dict->epoch = 0;
     dict->chain = NULL;
     dict->refcount = 1;
-    objPtr->internalRep.otherValuePtr = dict;
+    DICT(objPtr) = dict;
+    objPtr->internalRep.twoPtrValue.ptr2 = NULL;
     objPtr->typePtr = &tclDictType;
     return TCL_OK;
 
@@ -704,15 +731,10 @@ SetDictFromAny(
 		"missing value to go with key", -1));
 	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);
     }
-    result = TCL_ERROR;
-
-  errorExit:
-    if (interp != NULL) {
-	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);
-    }
+  errorInFindDictElement:
     DeleteChainTable(dict);
     ckfree(dict);
-    return result;
+    return TCL_ERROR;
 }
 
 /*
@@ -758,12 +780,11 @@ TclTraceDictPath(
     Dict *dict, *newDict;
     int i;
 
-    if (dictPtr->typePtr != &tclDictType) {
-	if (SetDictFromAny(interp, dictPtr) != TCL_OK) {
-	    return NULL;
-	}
+    if (dictPtr->typePtr != &tclDictType
+	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
+	return NULL;
     }
-    dict = dictPtr->internalRep.otherValuePtr;
+    dict = DICT(dictPtr);
     if (flags & DICT_PATH_UPDATE) {
 	dict->chain = NULL;
     }
@@ -799,14 +820,13 @@ TclTraceDictPath(
 	    Tcl_SetHashValue(hPtr, tmpObj);
 	} else {
 	    tmpObj = Tcl_GetHashValue(hPtr);
-	    if (tmpObj->typePtr != &tclDictType) {
-		if (SetDictFromAny(interp, tmpObj) != TCL_OK) {
-		    return NULL;
-		}
+	    if (tmpObj->typePtr != &tclDictType
+		    && SetDictFromAny(interp, tmpObj) != TCL_OK) {
+		return NULL;
 	    }
 	}
 
-	newDict = tmpObj->internalRep.otherValuePtr;
+	newDict = DICT(tmpObj);
 	if (flags & DICT_PATH_UPDATE) {
 	    if (Tcl_IsShared(tmpObj)) {
 		TclDecrRefCount(tmpObj);
@@ -814,7 +834,7 @@ TclTraceDictPath(
 		Tcl_IncrRefCount(tmpObj);
 		Tcl_SetHashValue(hPtr, tmpObj);
 		dict->epoch++;
-		newDict = tmpObj->internalRep.otherValuePtr;
+		newDict = DICT(tmpObj);
 	    }
 
 	    newDict->chain = dictPtr;
@@ -849,17 +869,17 @@ static void
 InvalidateDictChain(
     Tcl_Obj *dictObj)
 {
-    Dict *dict = dictObj->internalRep.otherValuePtr;
+    Dict *dict = DICT(dictObj);
 
     do {
-	Tcl_InvalidateStringRep(dictObj);
+	TclInvalidateStringRep(dictObj);
 	dict->epoch++;
 	dictObj = dict->chain;
 	if (dictObj == NULL) {
 	    break;
 	}
 	dict->chain = NULL;
-	dict = dictObj->internalRep.otherValuePtr;
+	dict = DICT(dictObj);
     } while (dict != NULL);
 }
 
@@ -897,18 +917,15 @@ Tcl_DictObjPut(
 	Tcl_Panic("%s called with shared object", "Tcl_DictObjPut");
     }
 
-    if (dictPtr->typePtr != &tclDictType) {
-	int result = SetDictFromAny(interp, dictPtr);
-
-	if (result != TCL_OK) {
-	    return result;
-	}
+    if (dictPtr->typePtr != &tclDictType
+	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
+	return TCL_ERROR;
     }
 
     if (dictPtr->bytes != NULL) {
-	Tcl_InvalidateStringRep(dictPtr);
+	TclInvalidateStringRep(dictPtr);
     }
-    dict = dictPtr->internalRep.otherValuePtr;
+    dict = DICT(dictPtr);
     hPtr = CreateChainEntry(dict, keyPtr, &isNew);
     Tcl_IncrRefCount(valuePtr);
     if (!isNew) {
@@ -951,14 +968,13 @@ Tcl_DictObjGet(
     Dict *dict;
     Tcl_HashEntry *hPtr;
 
-    if (dictPtr->typePtr != &tclDictType) {
-	int result = SetDictFromAny(interp, dictPtr);
-	if (result != TCL_OK) {
-	    return result;
-	}
+    if (dictPtr->typePtr != &tclDictType
+	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
+	*valuePtrPtr = NULL;
+	return TCL_ERROR;
     }
 
-    dict = dictPtr->internalRep.otherValuePtr;
+    dict = DICT(dictPtr);
     hPtr = Tcl_FindHashEntry(&dict->table, keyPtr);
     if (hPtr == NULL) {
 	*valuePtrPtr = NULL;
@@ -999,18 +1015,16 @@ Tcl_DictObjRemove(
 	Tcl_Panic("%s called with shared object", "Tcl_DictObjRemove");
     }
 
-    if (dictPtr->typePtr != &tclDictType) {
-	int result = SetDictFromAny(interp, dictPtr);
-	if (result != TCL_OK) {
-	    return result;
-	}
+    if (dictPtr->typePtr != &tclDictType
+	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
+	return TCL_ERROR;
     }
 
-    if (dictPtr->bytes != NULL) {
-	Tcl_InvalidateStringRep(dictPtr);
-    }
-    dict = dictPtr->internalRep.otherValuePtr;
+    dict = DICT(dictPtr);
     if (DeleteChainEntry(dict, keyPtr)) {
+	if (dictPtr->bytes != NULL) {
+	    TclInvalidateStringRep(dictPtr);
+	}
 	dict->epoch++;
     }
     return TCL_OK;
@@ -1042,14 +1056,12 @@ Tcl_DictObjSize(
 {
     Dict *dict;
 
-    if (dictPtr->typePtr != &tclDictType) {
-	int result = SetDictFromAny(interp, dictPtr);
-	if (result != TCL_OK) {
-	    return result;
-	}
+    if (dictPtr->typePtr != &tclDictType
+	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
+	return TCL_ERROR;
     }
 
-    dict = dictPtr->internalRep.otherValuePtr;
+    dict = DICT(dictPtr);
     *sizePtr = dict->table.numEntries;
     return TCL_OK;
 }
@@ -1096,15 +1108,12 @@ Tcl_DictObjFirst(
     Dict *dict;
     ChainEntry *cPtr;
 
-    if (dictPtr->typePtr != &tclDictType) {
-	int result = SetDictFromAny(interp, dictPtr);
-
-	if (result != TCL_OK) {
-	    return result;
-	}
+    if (dictPtr->typePtr != &tclDictType
+	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
+	return TCL_ERROR;
     }
 
-    dict = dictPtr->internalRep.otherValuePtr;
+    dict = DICT(dictPtr);
     cPtr = dict->entryChainHead;
     if (cPtr == NULL) {
 	searchPtr->epoch = -1;
@@ -1279,11 +1288,12 @@ Tcl_DictObjPutKeyList(
 	return TCL_ERROR;
     }
 
-    dict = dictPtr->internalRep.otherValuePtr;
+    dict = DICT(dictPtr);
     hPtr = CreateChainEntry(dict, keyv[keyc-1], &isNew);
     Tcl_IncrRefCount(valuePtr);
     if (!isNew) {
 	Tcl_Obj *oldValuePtr = Tcl_GetHashValue(hPtr);
+
 	TclDecrRefCount(oldValuePtr);
     }
     Tcl_SetHashValue(hPtr, valuePtr);
@@ -1335,7 +1345,7 @@ Tcl_DictObjRemoveKeyList(
 	return TCL_ERROR;
     }
 
-    dict = dictPtr->internalRep.otherValuePtr;
+    dict = DICT(dictPtr);
     DeleteChainEntry(dict, keyv[keyc-1]);
     InvalidateDictChain(dictPtr);
     return TCL_OK;
@@ -1375,13 +1385,14 @@ Tcl_NewDictObj(void)
     Dict *dict;
 
     TclNewObj(dictPtr);
-    Tcl_InvalidateStringRep(dictPtr);
+    TclInvalidateStringRep(dictPtr);
     dict = ckalloc(sizeof(Dict));
     InitChainTable(dict);
     dict->epoch = 0;
     dict->chain = NULL;
     dict->refcount = 1;
-    dictPtr->internalRep.otherValuePtr = dict;
+    DICT(dictPtr) = dict;
+    dictPtr->internalRep.twoPtrValue.ptr2 = NULL;
     dictPtr->typePtr = &tclDictType;
     return dictPtr;
 #endif
@@ -1424,13 +1435,14 @@ Tcl_DbNewDictObj(
     Dict *dict;
 
     TclDbNewObj(dictPtr, file, line);
-    Tcl_InvalidateStringRep(dictPtr);
+    TclInvalidateStringRep(dictPtr);
     dict = ckalloc(sizeof(Dict));
     InitChainTable(dict);
     dict->epoch = 0;
     dict->chain = NULL;
     dict->refcount = 1;
-    dictPtr->internalRep.otherValuePtr = dict;
+    DICT(dictPtr) = dict;
+    dictPtr->internalRep.twoPtrValue.ptr2 = NULL;
     dictPtr->typePtr = &tclDictType;
     return dictPtr;
 #else /* !TCL_MEM_DEBUG */
@@ -1484,7 +1496,7 @@ DictCreateCmd(
 	/*
 	 * The next command is assumed to never fail...
 	 */
-	Tcl_DictObjPut(interp, dictObj, objv[i], objv[i+1]);
+	Tcl_DictObjPut(NULL, dictObj, objv[i], objv[i+1]);
     }
     Tcl_SetObjResult(interp, dictObj);
     return TCL_OK;
@@ -1609,8 +1621,7 @@ DictReplaceCmd(
     Tcl_Obj *const *objv)
 {
     Tcl_Obj *dictPtr;
-    int i, result;
-    int allocatedDict = 0;
+    int i;
 
     if ((objc < 2) || (objc & 1)) {
 	Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?key value ...?");
@@ -1618,18 +1629,18 @@ DictReplaceCmd(
     }
 
     dictPtr = objv[1];
+    if (dictPtr->typePtr != &tclDictType
+	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
+	return TCL_ERROR;
+    }
     if (Tcl_IsShared(dictPtr)) {
 	dictPtr = Tcl_DuplicateObj(dictPtr);
-	allocatedDict = 1;
+    }
+    if (dictPtr->bytes != NULL) {
+	TclInvalidateStringRep(dictPtr);
     }
     for (i=2 ; i<objc ; i+=2) {
-	result = Tcl_DictObjPut(interp, dictPtr, objv[i], objv[i+1]);
-	if (result != TCL_OK) {
-	    if (allocatedDict) {
-		TclDecrRefCount(dictPtr);
-	    }
-	    return TCL_ERROR;
-	}
+	Tcl_DictObjPut(NULL, dictPtr, objv[i], objv[i+1]);
     }
     Tcl_SetObjResult(interp, dictPtr);
     return TCL_OK;
@@ -1661,8 +1672,7 @@ DictRemoveCmd(
     Tcl_Obj *const *objv)
 {
     Tcl_Obj *dictPtr;
-    int i, result;
-    int allocatedDict = 0;
+    int i;
 
     if (objc < 2) {
 	Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?key ...?");
@@ -1670,18 +1680,18 @@ DictRemoveCmd(
     }
 
     dictPtr = objv[1];
+    if (dictPtr->typePtr != &tclDictType
+	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
+	return TCL_ERROR;
+    }
     if (Tcl_IsShared(dictPtr)) {
 	dictPtr = Tcl_DuplicateObj(dictPtr);
-	allocatedDict = 1;
+    }
+    if (dictPtr->bytes != NULL) {
+	TclInvalidateStringRep(dictPtr);
     }
     for (i=2 ; i<objc ; i++) {
-	result = Tcl_DictObjRemove(interp, dictPtr, objv[i]);
-	if (result != TCL_OK) {
-	    if (allocatedDict) {
-		TclDecrRefCount(dictPtr);
-	    }
-	    return TCL_ERROR;
-	}
+	Tcl_DictObjRemove(NULL, dictPtr, objv[i]);
     }
     Tcl_SetObjResult(interp, dictPtr);
     return TCL_OK;
@@ -1730,10 +1740,9 @@ DictMergeCmd(
      */
 
     targetObj = objv[1];
-    if (targetObj->typePtr != &tclDictType) {
-	if (SetDictFromAny(interp, targetObj) != TCL_OK) {
-	    return TCL_ERROR;
-	}
+    if (targetObj->typePtr != &tclDictType
+	    && SetDictFromAny(interp, targetObj) != TCL_OK) {
+	return TCL_ERROR;
     }
 
     if (objc == 2) {
@@ -1815,12 +1824,9 @@ DictKeysCmd(
      * need. [Bug 1705778, leak K04]
      */
 
-    if (objv[1]->typePtr != &tclDictType) {
-	int result = SetDictFromAny(interp, objv[1]);
-
-	if (result != TCL_OK) {
-	    return result;
-	}
+    if (objv[1]->typePtr != &tclDictType
+	    && SetDictFromAny(interp, objv[1]) != TCL_OK) {
+	return TCL_ERROR;
     }
 
     if (objc == 3) {
@@ -2036,13 +2042,11 @@ DictInfoCmd(
     }
 
     dictPtr = objv[1];
-    if (dictPtr->typePtr != &tclDictType) {
-	int result = SetDictFromAny(interp, dictPtr);
-	if (result != TCL_OK) {
-	    return result;
-	}
+    if (dictPtr->typePtr != &tclDictType
+	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
+	return TCL_ERROR;
     }
-    dict = dictPtr->internalRep.otherValuePtr;
+    dict = DICT(dictPtr);
 
     statsStr = Tcl_HashStats(&dict->table);
     Tcl_SetObjResult(interp, Tcl_NewStringObj(statsStr, -1));
@@ -2079,7 +2083,7 @@ DictIncrCmd(
     Tcl_Obj *dictPtr, *valuePtr = NULL;
 
     if (objc < 3 || objc > 4) {
-	Tcl_WrongNumArgs(interp, 1, objv, "varName key ?increment?");
+	Tcl_WrongNumArgs(interp, 1, objv, "dictVarName key ?increment?");
 	return TCL_ERROR;
     }
 
@@ -2132,10 +2136,10 @@ DictIncrCmd(
 		 */
 
 		mp_clear(&increment);
-		Tcl_DictObjPut(interp, dictPtr, objv[2], objv[3]);
+		Tcl_DictObjPut(NULL, dictPtr, objv[2], objv[3]);
 	    }
 	} else {
-	    Tcl_DictObjPut(interp, dictPtr, objv[2], Tcl_NewIntObj(1));
+	    Tcl_DictObjPut(NULL, dictPtr, objv[2], Tcl_NewIntObj(1));
 	}
     } else {
 	/*
@@ -2144,7 +2148,7 @@ DictIncrCmd(
 
 	if (Tcl_IsShared(valuePtr)) {
 	    valuePtr = Tcl_DuplicateObj(valuePtr);
-	    Tcl_DictObjPut(interp, dictPtr, objv[2], valuePtr);
+	    Tcl_DictObjPut(NULL, dictPtr, objv[2], valuePtr);
 	}
 	if (objc == 4) {
 	    code = TclIncrObj(interp, valuePtr, objv[3]);
@@ -2153,11 +2157,11 @@ DictIncrCmd(
 
 	    Tcl_IncrRefCount(incrPtr);
 	    code = TclIncrObj(interp, valuePtr, incrPtr);
-	    Tcl_DecrRefCount(incrPtr);
+	    TclDecrRefCount(incrPtr);
 	}
     }
     if (code == TCL_OK) {
-	Tcl_InvalidateStringRep(dictPtr);
+	TclInvalidateStringRep(dictPtr);
 	valuePtr = Tcl_ObjSetVar2(interp, objv[1], NULL,
 		dictPtr, TCL_LEAVE_ERR_MSG);
 	if (valuePtr == NULL) {
@@ -2166,7 +2170,7 @@ DictIncrCmd(
 	    Tcl_SetObjResult(interp, valuePtr);
 	}
     } else if (dictPtr->refCount == 0) {
-	Tcl_DecrRefCount(dictPtr);
+	TclDecrRefCount(dictPtr);
     }
     return code;
 }
@@ -2200,7 +2204,7 @@ DictLappendCmd(
     int i, allocatedDict = 0, allocatedValue = 0;
 
     if (objc < 3) {
-	Tcl_WrongNumArgs(interp, 1, objv, "varName key ?value ...?");
+	Tcl_WrongNumArgs(interp, 1, objv, "dictVarName key ?value ...?");
 	return TCL_ERROR;
     }
 
@@ -2244,9 +2248,9 @@ DictLappendCmd(
     }
 
     if (allocatedValue) {
-	Tcl_DictObjPut(interp, dictPtr, objv[2], valuePtr);
+	Tcl_DictObjPut(NULL, dictPtr, objv[2], valuePtr);
     } else if (dictPtr->bytes != NULL) {
-	Tcl_InvalidateStringRep(dictPtr);
+	TclInvalidateStringRep(dictPtr);
     }
 
     resultPtr = Tcl_ObjSetVar2(interp, objv[1], NULL, dictPtr,
@@ -2287,7 +2291,7 @@ DictAppendCmd(
     int i, allocatedDict = 0;
 
     if (objc < 3) {
-	Tcl_WrongNumArgs(interp, 1, objv, "varName key ?value ...?");
+	Tcl_WrongNumArgs(interp, 1, objv, "dictVarName key ?value ...?");
 	return TCL_ERROR;
     }
 
@@ -2309,17 +2313,15 @@ DictAppendCmd(
 
     if (valuePtr == NULL) {
 	TclNewObj(valuePtr);
-    } else {
-	if (Tcl_IsShared(valuePtr)) {
-	    valuePtr = Tcl_DuplicateObj(valuePtr);
-	}
+    } else if (Tcl_IsShared(valuePtr)) {
+	valuePtr = Tcl_DuplicateObj(valuePtr);
     }
 
     for (i=3 ; i<objc ; i++) {
 	Tcl_AppendObjToObj(valuePtr, objv[i]);
     }
 
-    Tcl_DictObjPut(interp, dictPtr, objv[2], valuePtr);
+    Tcl_DictObjPut(NULL, dictPtr, objv[2], valuePtr);
 
     resultPtr = Tcl_ObjSetVar2(interp, objv[1], NULL, dictPtr,
 	    TCL_LEAVE_ERR_MSG);
@@ -2335,7 +2337,7 @@ DictAppendCmd(
  *
  * DictForNRCmd --
  *
- *	This function implements the "dict for" Tcl command. See the user
+ *	These functions implement the "dict for" Tcl command.  See the user
  *	documentation for details on what it does, and TIP#111 for the formal
  *	specification.
  *
@@ -2363,7 +2365,7 @@ DictForNRCmd(
 
     if (objc != 4) {
 	Tcl_WrongNumArgs(interp, 1, objv,
-		"{keyVar valueVar} dictionary script");
+		"{keyVarName valueVarName} dictionary script");
 	return TCL_ERROR;
     }
 
@@ -2377,6 +2379,7 @@ DictForNRCmd(
     if (varc != 2) {
 	Tcl_SetObjResult(interp, Tcl_NewStringObj(
 		"must have exactly two variable names", -1));
+	Tcl_SetErrorCode(interp, "TCL", "SYNTAX", "dict", "for", NULL);
 	return TCL_ERROR;
     }
     searchPtr = TclStackAlloc(interp, sizeof(Tcl_DictSearch));
@@ -2410,12 +2413,14 @@ DictForNRCmd(
      */
 
     Tcl_IncrRefCount(valueObj);
-    if (Tcl_ObjSetVar2(interp, keyVarObj, NULL, keyObj, TCL_LEAVE_ERR_MSG) == NULL) {
+    if (Tcl_ObjSetVar2(interp, keyVarObj, NULL, keyObj,
+	    TCL_LEAVE_ERR_MSG) == NULL) {
 	TclDecrRefCount(valueObj);
 	goto error;
     }
     TclDecrRefCount(valueObj);
-    if (Tcl_ObjSetVar2(interp, valueVarObj, NULL, valueObj, TCL_LEAVE_ERR_MSG) == NULL) {
+    if (Tcl_ObjSetVar2(interp, valueVarObj, NULL, valueObj,
+	    TCL_LEAVE_ERR_MSG) == NULL) {
 	goto error;
     }
 
@@ -2488,13 +2493,15 @@ DictForLoopCallback(
      */
 
     Tcl_IncrRefCount(valueObj);
-    if (Tcl_ObjSetVar2(interp, keyVarObj, NULL, keyObj, TCL_LEAVE_ERR_MSG) == NULL) {
+    if (Tcl_ObjSetVar2(interp, keyVarObj, NULL, keyObj,
+	    TCL_LEAVE_ERR_MSG) == NULL) {
 	TclDecrRefCount(valueObj);
 	result = TCL_ERROR;
 	goto done;
     }
     TclDecrRefCount(valueObj);
-    if (Tcl_ObjSetVar2(interp, valueVarObj, NULL, valueObj, TCL_LEAVE_ERR_MSG) == NULL) {
+    if (Tcl_ObjSetVar2(interp, valueVarObj, NULL, valueObj,
+	    TCL_LEAVE_ERR_MSG) == NULL) {
 	result = TCL_ERROR;
 	goto done;
     }
@@ -2523,6 +2530,218 @@ DictForLoopCallback(
 /*
  *----------------------------------------------------------------------
  *
+ * DictMapNRCmd --
+ *
+ *	These functions implement the "dict map" Tcl command.  See the user
+ *	documentation for details on what it does, and TIP#405 for the formal
+ *	specification.
+ *
+ * Results:
+ *	A standard Tcl result.
+ *
+ * Side effects:
+ *	See the user documentation.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+DictMapNRCmd(
+    ClientData dummy,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const *objv)
+{
+    Interp *iPtr = (Interp *) interp;
+    Tcl_Obj **varv, *keyObj, *valueObj;
+    DictMapStorage *storagePtr;
+    int varc, done;
+
+    if (objc != 4) {
+	Tcl_WrongNumArgs(interp, 1, objv,
+		"{keyVarName valueVarName} dictionary script");
+	return TCL_ERROR;
+    }
+
+    /*
+     * Parse arguments.
+     */
+
+    if (TclListObjGetElements(interp, objv[1], &varc, &varv) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    if (varc != 2) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"must have exactly two variable names", -1));
+	Tcl_SetErrorCode(interp, "TCL", "SYNTAX", "dict", "map", NULL);
+	return TCL_ERROR;
+    }
+    storagePtr = TclStackAlloc(interp, sizeof(DictMapStorage));
+    if (Tcl_DictObjFirst(interp, objv[2], &storagePtr->search, &keyObj,
+	    &valueObj, &done) != TCL_OK) {
+	TclStackFree(interp, storagePtr);
+	return TCL_ERROR;
+    }
+    if (done) {
+	/*
+	 * Note that this exit leaves an empty value in the result (due to
+	 * command calling conventions) but that is OK since an empty value is
+	 * an empty dictionary.
+	 */
+
+	TclStackFree(interp, storagePtr);
+	return TCL_OK;
+    }
+    TclNewObj(storagePtr->accumulatorObj);
+    TclListObjGetElements(NULL, objv[1], &varc, &varv);
+    storagePtr->keyVarObj = varv[0];
+    storagePtr->valueVarObj = varv[1];
+    storagePtr->scriptObj = objv[3];
+
+    /*
+     * Make sure that these objects (which we need throughout the body of the
+     * loop) don't vanish. Note that the dictionary internal rep is locked
+     * internally so that updates, shimmering, etc are not a problem.
+     */
+
+    Tcl_IncrRefCount(storagePtr->accumulatorObj);
+    Tcl_IncrRefCount(storagePtr->keyVarObj);
+    Tcl_IncrRefCount(storagePtr->valueVarObj);
+    Tcl_IncrRefCount(storagePtr->scriptObj);
+
+    /*
+     * Stop the value from getting hit in any way by any traces on the key
+     * variable.
+     */
+
+    Tcl_IncrRefCount(valueObj);
+    if (Tcl_ObjSetVar2(interp, storagePtr->keyVarObj, NULL, keyObj,
+	    TCL_LEAVE_ERR_MSG) == NULL) {
+	TclDecrRefCount(valueObj);
+	goto error;
+    }
+    if (Tcl_ObjSetVar2(interp, storagePtr->valueVarObj, NULL, valueObj,
+	    TCL_LEAVE_ERR_MSG) == NULL) {
+	TclDecrRefCount(valueObj);
+	goto error;
+    }
+    TclDecrRefCount(valueObj);
+
+    /*
+     * Run the script.
+     */
+
+    TclNRAddCallback(interp, DictMapLoopCallback, storagePtr, NULL,NULL,NULL);
+    return TclNREvalObjEx(interp, storagePtr->scriptObj, 0,
+	    iPtr->cmdFramePtr, 3);
+
+    /*
+     * For unwinding everything on error.
+     */
+
+  error:
+    TclDecrRefCount(storagePtr->keyVarObj);
+    TclDecrRefCount(storagePtr->valueVarObj);
+    TclDecrRefCount(storagePtr->scriptObj);
+    TclDecrRefCount(storagePtr->accumulatorObj);
+    Tcl_DictObjDone(&storagePtr->search);
+    TclStackFree(interp, storagePtr);
+    return TCL_ERROR;
+}
+
+static int
+DictMapLoopCallback(
+    ClientData data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    DictMapStorage *storagePtr = data[0];
+    Tcl_Obj *keyObj, *valueObj;
+    int done;
+
+    /*
+     * Process the result from the previous execution of the script body.
+     */
+
+    if (result == TCL_CONTINUE) {
+	result = TCL_OK;
+    } else if (result != TCL_OK) {
+	if (result == TCL_BREAK) {
+	    Tcl_ResetResult(interp);
+	    result = TCL_OK;
+	} else if (result == TCL_ERROR) {
+	    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
+		    "\n    (\"dict map\" body line %d)",
+		    Tcl_GetErrorLine(interp)));
+	}
+	goto done;
+    } else {
+	keyObj = Tcl_ObjGetVar2(interp, storagePtr->keyVarObj, NULL,
+		TCL_LEAVE_ERR_MSG);
+	if (keyObj == NULL) {
+	    result = TCL_ERROR;
+	    goto done;
+	}
+	Tcl_DictObjPut(NULL, storagePtr->accumulatorObj, keyObj,
+		Tcl_GetObjResult(interp));
+    }
+
+    /*
+     * Get the next mapping from the dictionary.
+     */
+
+    Tcl_DictObjNext(&storagePtr->search, &keyObj, &valueObj, &done);
+    if (done) {
+	Tcl_SetObjResult(interp, storagePtr->accumulatorObj);
+	goto done;
+    }
+
+    /*
+     * Stop the value from getting hit in any way by any traces on the key
+     * variable.
+     */
+
+    Tcl_IncrRefCount(valueObj);
+    if (Tcl_ObjSetVar2(interp, storagePtr->keyVarObj, NULL, keyObj,
+	    TCL_LEAVE_ERR_MSG) == NULL) {
+	TclDecrRefCount(valueObj);
+	result = TCL_ERROR;
+	goto done;
+    }
+    if (Tcl_ObjSetVar2(interp, storagePtr->valueVarObj, NULL, valueObj,
+	    TCL_LEAVE_ERR_MSG) == NULL) {
+	TclDecrRefCount(valueObj);
+	result = TCL_ERROR;
+	goto done;
+    }
+    TclDecrRefCount(valueObj);
+
+    /*
+     * Run the script.
+     */
+
+    TclNRAddCallback(interp, DictMapLoopCallback, storagePtr, NULL,NULL,NULL);
+    return TclNREvalObjEx(interp, storagePtr->scriptObj, 0,
+	    iPtr->cmdFramePtr, 3);
+
+    /*
+     * For unwinding everything once the iterating is done.
+     */
+
+  done:
+    TclDecrRefCount(storagePtr->keyVarObj);
+    TclDecrRefCount(storagePtr->valueVarObj);
+    TclDecrRefCount(storagePtr->scriptObj);
+    TclDecrRefCount(storagePtr->accumulatorObj);
+    Tcl_DictObjDone(&storagePtr->search);
+    TclStackFree(interp, storagePtr);
+    return result;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * DictSetCmd --
  *
  *	This function implements the "dict set" Tcl command. See the user
@@ -2549,7 +2768,7 @@ DictSetCmd(
     int result, allocatedDict = 0;
 
     if (objc < 4) {
-	Tcl_WrongNumArgs(interp, 1, objv, "varName key ?key ...? value");
+	Tcl_WrongNumArgs(interp, 1, objv, "dictVarName key ?key ...? value");
 	return TCL_ERROR;
     }
 
@@ -2609,7 +2828,7 @@ DictUnsetCmd(
     int result, allocatedDict = 0;
 
     if (objc < 3) {
-	Tcl_WrongNumArgs(interp, 1, objv, "varName key ?key ...?");
+	Tcl_WrongNumArgs(interp, 1, objv, "dictVarName key ?key ...?");
 	return TCL_ERROR;
     }
 
@@ -2716,12 +2935,12 @@ DictFilterCmd(
 		Tcl_DictObjDone(&search);
 		Tcl_DictObjGet(interp, objv[1], objv[3], &valueObj);
 		if (valueObj != NULL) {
-		    Tcl_DictObjPut(interp, resultObj, objv[3], valueObj);
+		    Tcl_DictObjPut(NULL, resultObj, objv[3], valueObj);
 		}
 	    } else {
 		while (!done) {
 		    if (Tcl_StringMatch(TclGetString(keyObj), pattern)) {
-			Tcl_DictObjPut(interp, resultObj, keyObj, valueObj);
+			Tcl_DictObjPut(NULL, resultObj, keyObj, valueObj);
 		    }
 		    Tcl_DictObjNext(&search, &keyObj, &valueObj, &done);
 		}
@@ -2739,7 +2958,7 @@ DictFilterCmd(
 		for (i=3 ; i<objc ; i++) {
 		    pattern = TclGetString(objv[i]);
 		    if (Tcl_StringMatch(TclGetString(keyObj), pattern)) {
-			Tcl_DictObjPut(interp, resultObj, keyObj, valueObj);
+			Tcl_DictObjPut(NULL, resultObj, keyObj, valueObj);
 			break;		/* stop inner loop */
 		    }
 		}
@@ -2765,7 +2984,7 @@ DictFilterCmd(
 	    for (i=3 ; i<objc ; i++) {
 		pattern = TclGetString(objv[i]);
 		if (Tcl_StringMatch(TclGetString(valueObj), pattern)) {
-		    Tcl_DictObjPut(interp, resultObj, keyObj, valueObj);
+		    Tcl_DictObjPut(NULL, resultObj, keyObj, valueObj);
 		    break;		/* stop inner loop */
 		}
 	    }
@@ -2777,7 +2996,7 @@ DictFilterCmd(
     case FILTER_SCRIPT:
 	if (objc != 5) {
 	    Tcl_WrongNumArgs(interp, 1, objv,
-		    "dictionary script {keyVar valueVar} filterScript");
+		    "dictionary script {keyVarName valueVarName} filterScript");
 	    return TCL_ERROR;
 	}
 
@@ -2793,6 +3012,7 @@ DictFilterCmd(
 	if (varc != 2) {
 	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
 		    "must have exactly two variable names", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "SYNTAX", "dict", "filter", NULL);
 	    return TCL_ERROR;
 	}
 	keyVarObj = varv[0];
@@ -2831,19 +3051,15 @@ DictFilterCmd(
 	    Tcl_IncrRefCount(valueObj);
 	    if (Tcl_ObjSetVar2(interp, keyVarObj, NULL, keyObj,
 		    TCL_LEAVE_ERR_MSG) == NULL) {
-		Tcl_ResetResult(interp);
-		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-			"couldn't set key variable: \"%s\"",
-			TclGetString(keyVarObj)));
+		Tcl_AddErrorInfo(interp, 
+			"\n    (\"dict filter\" filter script key variable)");
 		result = TCL_ERROR;
 		goto abnormalResult;
 	    }
 	    if (Tcl_ObjSetVar2(interp, valueVarObj, NULL, valueObj,
 		    TCL_LEAVE_ERR_MSG) == NULL) {
-		Tcl_ResetResult(interp);
-		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-			"couldn't set value variable: \"%s\"",
-			TclGetString(valueVarObj)));
+		Tcl_AddErrorInfo(interp, 
+			"\n    (\"dict filter\" filter script value variable)");
 		result = TCL_ERROR;
 		goto abnormalResult;
 	    }
@@ -2866,7 +3082,7 @@ DictFilterCmd(
 		}
 		TclDecrRefCount(boolObj);
 		if (satisfied) {
-		    Tcl_DictObjPut(interp, resultObj, keyObj, valueObj);
+		    Tcl_DictObjPut(NULL, resultObj, keyObj, valueObj);
 		}
 		break;
 	    case TCL_BREAK:
@@ -2957,7 +3173,7 @@ DictUpdateCmd(
 
     if (objc < 5 || !(objc & 1)) {
 	Tcl_WrongNumArgs(interp, 1, objv,
-		"varName key varName ?key varName ...? script");
+		"dictVarName key varName ?key varName ...? script");
 	return TCL_ERROR;
     }
 
@@ -3054,18 +3270,17 @@ FinalizeDictUpdate(
     for (i=0 ; i<objc ; i+=2) {
 	objPtr = Tcl_ObjGetVar2(interp, objv[i+1], NULL, 0);
 	if (objPtr == NULL) {
-	    Tcl_DictObjRemove(interp, dictPtr, objv[i]);
+	    Tcl_DictObjRemove(NULL, dictPtr, objv[i]);
 	} else if (objPtr == dictPtr) {
 	    /*
 	     * Someone is messing us around, trying to build a recursive
 	     * structure. [Bug 1786481]
 	     */
 
-	    Tcl_DictObjPut(interp, dictPtr, objv[i],
-		    Tcl_DuplicateObj(objPtr));
+	    Tcl_DictObjPut(NULL, dictPtr, objv[i], Tcl_DuplicateObj(objPtr));
 	} else {
 	    /* Shouldn't fail */
-	    Tcl_DictObjPut(interp, dictPtr, objv[i], objPtr);
+	    Tcl_DictObjPut(NULL, dictPtr, objv[i], objPtr);
 	}
     }
     TclDecrRefCount(argsObj);
@@ -3114,7 +3329,7 @@ DictWithCmd(
     Tcl_Obj *dictPtr, *keysPtr, *pathPtr;
 
     if (objc < 3) {
-	Tcl_WrongNumArgs(interp, 1, objv, "dictVar ?key ...? script");
+	Tcl_WrongNumArgs(interp, 1, objv, "dictVarName ?key ...? script");
 	return TCL_ERROR;
     }
 
@@ -3445,7 +3660,7 @@ TclInitDictCmd(
 {
     return TclMakeEnsemble(interp, "dict", implementationMap);
 }
-
+
 /*
  * Local Variables:
  * mode: c
diff --git a/generic/tclDisassemble.c b/generic/tclDisassemble.c
new file mode 100644
index 0000000..b3753c31
--- /dev/null
+++ b/generic/tclDisassemble.c
@@ -0,0 +1,1403 @@
+/*
+ * tclDisassemble.c --
+ *
+ *	This file contains procedures that disassemble bytecode into either
+ *	human-readable or Tcl-processable forms.
+ *
+ * Copyright (c) 1996-1998 Sun Microsystems, Inc.
+ * Copyright (c) 2001 by Kevin B. Kenny. All rights reserved.
+ * Copyright (c) 2013 Donal K. Fellows.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclInt.h"
+#include "tclCompile.h"
+#include "tclOOInt.h"
+#include <assert.h>
+
+/*
+ * Prototypes for procedures defined later in this file:
+ */
+
+static Tcl_Obj *	DisassembleByteCodeAsDicts(Tcl_Obj *objPtr);
+static int		FormatInstruction(ByteCode *codePtr,
+			    const unsigned char *pc, Tcl_Obj *bufferObj);
+static void		PrintSourceToObj(Tcl_Obj *appendObj,
+			    const char *stringPtr, int maxChars);
+static void		UpdateStringOfInstName(Tcl_Obj *objPtr);
+
+/*
+ * The structure below defines an instruction name Tcl object to allow
+ * reporting of inner contexts in errorstack without string allocation.
+ */
+
+static const Tcl_ObjType tclInstNameType = {
+    "instname",			/* name */
+    NULL,			/* freeIntRepProc */
+    NULL,			/* dupIntRepProc */
+    UpdateStringOfInstName,	/* updateStringProc */
+    NULL,			/* setFromAnyProc */
+};
+
+/*
+ * How to get the bytecode out of a Tcl_Obj.
+ */
+
+#define BYTECODE(objPtr)					\
+    ((ByteCode *) (objPtr)->internalRep.twoPtrValue.ptr1)
+
+#ifdef TCL_COMPILE_DEBUG
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclPrintByteCodeObj --
+ *
+ *	This procedure prints ("disassembles") the instructions of a bytecode
+ *	object to stdout.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclPrintByteCodeObj(
+    Tcl_Interp *interp,		/* Used only for Tcl_GetStringFromObj. */
+    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
+{
+    Tcl_Obj *bufPtr = TclDisassembleByteCodeObj(objPtr);
+
+    fprintf(stdout, "\n%s", TclGetString(bufPtr));
+    Tcl_DecrRefCount(bufPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclPrintInstruction --
+ *
+ *	This procedure prints ("disassembles") one instruction from a bytecode
+ *	object to stdout.
+ *
+ * Results:
+ *	Returns the length in bytes of the current instruiction.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclPrintInstruction(
+    ByteCode *codePtr,		/* Bytecode containing the instruction. */
+    const unsigned char *pc)	/* Points to first byte of instruction. */
+{
+    Tcl_Obj *bufferObj;
+    int numBytes;
+
+    TclNewObj(bufferObj);
+    numBytes = FormatInstruction(codePtr, pc, bufferObj);
+    fprintf(stdout, "%s", TclGetString(bufferObj));
+    Tcl_DecrRefCount(bufferObj);
+    return numBytes;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclPrintObject --
+ *
+ *	This procedure prints up to a specified number of characters from the
+ *	argument Tcl object's string representation to a specified file.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Outputs characters to the specified file.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclPrintObject(
+    FILE *outFile,		/* The file to print the source to. */
+    Tcl_Obj *objPtr,		/* Points to the Tcl object whose string
+				 * representation should be printed. */
+    int maxChars)		/* Maximum number of chars to print. */
+{
+    char *bytes;
+    int length;
+
+    bytes = Tcl_GetStringFromObj(objPtr, &length);
+    TclPrintSource(outFile, bytes, TclMin(length, maxChars));
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclPrintSource --
+ *
+ *	This procedure prints up to a specified number of characters from the
+ *	argument string to a specified file. It tries to produce legible
+ *	output by adding backslashes as necessary.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Outputs characters to the specified file.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclPrintSource(
+    FILE *outFile,		/* The file to print the source to. */
+    const char *stringPtr,	/* The string to print. */
+    int maxChars)		/* Maximum number of chars to print. */
+{
+    Tcl_Obj *bufferObj;
+
+    TclNewObj(bufferObj);
+    PrintSourceToObj(bufferObj, stringPtr, maxChars);
+    fprintf(outFile, "%s", TclGetString(bufferObj));
+    Tcl_DecrRefCount(bufferObj);
+}
+#endif /* TCL_COMPILE_DEBUG */
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclDisassembleByteCodeObj --
+ *
+ *	Given an object which is of bytecode type, return a disassembled
+ *	version of the bytecode (in a new refcount 0 object). No guarantees
+ *	are made about the details of the contents of the result.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+TclDisassembleByteCodeObj(
+    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
+{
+    ByteCode *codePtr = BYTECODE(objPtr);
+    unsigned char *codeStart, *codeLimit, *pc;
+    unsigned char *codeDeltaNext, *codeLengthNext;
+    unsigned char *srcDeltaNext, *srcLengthNext;
+    int codeOffset, codeLen, srcOffset, srcLen, numCmds, delta, i;
+    Interp *iPtr = (Interp *) *codePtr->interpHandle;
+    Tcl_Obj *bufferObj;
+    char ptrBuf1[20], ptrBuf2[20];
+
+    TclNewObj(bufferObj);
+    if (codePtr->refCount <= 0) {
+	return bufferObj;	/* Already freed. */
+    }
+
+    codeStart = codePtr->codeStart;
+    codeLimit = codeStart + codePtr->numCodeBytes;
+    numCmds = codePtr->numCommands;
+
+    /*
+     * Print header lines describing the ByteCode.
+     */
+
+    sprintf(ptrBuf1, "%p", codePtr);
+    sprintf(ptrBuf2, "%p", iPtr);
+    Tcl_AppendPrintfToObj(bufferObj,
+	    "ByteCode 0x%s, refCt %u, epoch %u, interp 0x%s (epoch %u)\n",
+	    ptrBuf1, codePtr->refCount, codePtr->compileEpoch, ptrBuf2,
+	    iPtr->compileEpoch);
+    Tcl_AppendToObj(bufferObj, "  Source ", -1);
+    PrintSourceToObj(bufferObj, codePtr->source,
+	    TclMin(codePtr->numSrcBytes, 55));
+    Tcl_AppendPrintfToObj(bufferObj,
+	    "\n  Cmds %d, src %d, inst %d, litObjs %u, aux %d, stkDepth %u, code/src %.2f\n",
+	    numCmds, codePtr->numSrcBytes, codePtr->numCodeBytes,
+	    codePtr->numLitObjects, codePtr->numAuxDataItems,
+	    codePtr->maxStackDepth,
+#ifdef TCL_COMPILE_STATS
+	    codePtr->numSrcBytes?
+		    codePtr->structureSize/(float)codePtr->numSrcBytes :
+#endif
+	    0.0);
+
+#ifdef TCL_COMPILE_STATS
+    Tcl_AppendPrintfToObj(bufferObj,
+	    "  Code %lu = header %lu+inst %d+litObj %lu+exc %lu+aux %lu+cmdMap %d\n",
+	    (unsigned long) codePtr->structureSize,
+	    (unsigned long) (sizeof(ByteCode) - sizeof(size_t) - sizeof(Tcl_Time)),
+	    codePtr->numCodeBytes,
+	    (unsigned long) (codePtr->numLitObjects * sizeof(Tcl_Obj *)),
+	    (unsigned long) (codePtr->numExceptRanges*sizeof(ExceptionRange)),
+	    (unsigned long) (codePtr->numAuxDataItems * sizeof(AuxData)),
+	    codePtr->numCmdLocBytes);
+#endif /* TCL_COMPILE_STATS */
+
+    /*
+     * If the ByteCode is the compiled body of a Tcl procedure, print
+     * information about that procedure. Note that we don't know the
+     * procedure's name since ByteCode's can be shared among procedures.
+     */
+
+    if (codePtr->procPtr != NULL) {
+	Proc *procPtr = codePtr->procPtr;
+	int numCompiledLocals = procPtr->numCompiledLocals;
+
+	sprintf(ptrBuf1, "%p", procPtr);
+	Tcl_AppendPrintfToObj(bufferObj,
+		"  Proc 0x%s, refCt %d, args %d, compiled locals %d\n",
+		ptrBuf1, procPtr->refCount, procPtr->numArgs,
+		numCompiledLocals);
+	if (numCompiledLocals > 0) {
+	    CompiledLocal *localPtr = procPtr->firstLocalPtr;
+
+	    for (i = 0;  i < numCompiledLocals;  i++) {
+		Tcl_AppendPrintfToObj(bufferObj,
+			"      slot %d%s%s%s%s%s%s", i,
+			(localPtr->flags & (VAR_ARRAY|VAR_LINK)) ? "" : ", scalar",
+			(localPtr->flags & VAR_ARRAY) ? ", array" : "",
+			(localPtr->flags & VAR_LINK) ? ", link" : "",
+			(localPtr->flags & VAR_ARGUMENT) ? ", arg" : "",
+			(localPtr->flags & VAR_TEMPORARY) ? ", temp" : "",
+			(localPtr->flags & VAR_RESOLVED) ? ", resolved" : "");
+		if (TclIsVarTemporary(localPtr)) {
+		    Tcl_AppendToObj(bufferObj, "\n", -1);
+		} else {
+		    Tcl_AppendPrintfToObj(bufferObj, ", \"%s\"\n",
+			    localPtr->name);
+		}
+		localPtr = localPtr->nextPtr;
+	    }
+	}
+    }
+
+    /*
+     * Print the ExceptionRange array.
+     */
+
+    if (codePtr->numExceptRanges > 0) {
+	Tcl_AppendPrintfToObj(bufferObj, "  Exception ranges %d, depth %d:\n",
+		codePtr->numExceptRanges, codePtr->maxExceptDepth);
+	for (i = 0;  i < codePtr->numExceptRanges;  i++) {
+	    ExceptionRange *rangePtr = &codePtr->exceptArrayPtr[i];
+
+	    Tcl_AppendPrintfToObj(bufferObj,
+		    "      %d: level %d, %s, pc %d-%d, ",
+		    i, rangePtr->nestingLevel,
+		    (rangePtr->type==LOOP_EXCEPTION_RANGE ? "loop" : "catch"),
+		    rangePtr->codeOffset,
+		    (rangePtr->codeOffset + rangePtr->numCodeBytes - 1));
+	    switch (rangePtr->type) {
+	    case LOOP_EXCEPTION_RANGE:
+		Tcl_AppendPrintfToObj(bufferObj, "continue %d, break %d\n",
+			rangePtr->continueOffset, rangePtr->breakOffset);
+		break;
+	    case CATCH_EXCEPTION_RANGE:
+		Tcl_AppendPrintfToObj(bufferObj, "catch %d\n",
+			rangePtr->catchOffset);
+		break;
+	    default:
+		Tcl_Panic("TclDisassembleByteCodeObj: bad ExceptionRange type %d",
+			rangePtr->type);
+	    }
+	}
+    }
+
+    /*
+     * If there were no commands (e.g., an expression or an empty string was
+     * compiled), just print all instructions and return.
+     */
+
+    if (numCmds == 0) {
+	pc = codeStart;
+	while (pc < codeLimit) {
+	    Tcl_AppendToObj(bufferObj, "    ", -1);
+	    pc += FormatInstruction(codePtr, pc, bufferObj);
+	}
+	return bufferObj;
+    }
+
+    /*
+     * Print table showing the code offset, source offset, and source length
+     * for each command. These are encoded as a sequence of bytes.
+     */
+
+    Tcl_AppendPrintfToObj(bufferObj, "  Commands %d:", numCmds);
+    codeDeltaNext = codePtr->codeDeltaStart;
+    codeLengthNext = codePtr->codeLengthStart;
+    srcDeltaNext = codePtr->srcDeltaStart;
+    srcLengthNext = codePtr->srcLengthStart;
+    codeOffset = srcOffset = 0;
+    for (i = 0;  i < numCmds;  i++) {
+	if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) {
+	    codeDeltaNext++;
+	    delta = TclGetInt4AtPtr(codeDeltaNext);
+	    codeDeltaNext += 4;
+	} else {
+	    delta = TclGetInt1AtPtr(codeDeltaNext);
+	    codeDeltaNext++;
+	}
+	codeOffset += delta;
+
+	if ((unsigned) *codeLengthNext == (unsigned) 0xFF) {
+	    codeLengthNext++;
+	    codeLen = TclGetInt4AtPtr(codeLengthNext);
+	    codeLengthNext += 4;
+	} else {
+	    codeLen = TclGetInt1AtPtr(codeLengthNext);
+	    codeLengthNext++;
+	}
+
+	if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) {
+	    srcDeltaNext++;
+	    delta = TclGetInt4AtPtr(srcDeltaNext);
+	    srcDeltaNext += 4;
+	} else {
+	    delta = TclGetInt1AtPtr(srcDeltaNext);
+	    srcDeltaNext++;
+	}
+	srcOffset += delta;
+
+	if ((unsigned) *srcLengthNext == (unsigned) 0xFF) {
+	    srcLengthNext++;
+	    srcLen = TclGetInt4AtPtr(srcLengthNext);
+	    srcLengthNext += 4;
+	} else {
+	    srcLen = TclGetInt1AtPtr(srcLengthNext);
+	    srcLengthNext++;
+	}
+
+	Tcl_AppendPrintfToObj(bufferObj, "%s%4d: pc %d-%d, src %d-%d",
+		((i % 2)? "     " : "\n   "),
+		(i+1), codeOffset, (codeOffset + codeLen - 1),
+		srcOffset, (srcOffset + srcLen - 1));
+    }
+    if (numCmds > 0) {
+	Tcl_AppendToObj(bufferObj, "\n", -1);
+    }
+
+    /*
+     * Print each instruction. If the instruction corresponds to the start of
+     * a command, print the command's source. Note that we don't need the code
+     * length here.
+     */
+
+    codeDeltaNext = codePtr->codeDeltaStart;
+    srcDeltaNext = codePtr->srcDeltaStart;
+    srcLengthNext = codePtr->srcLengthStart;
+    codeOffset = srcOffset = 0;
+    pc = codeStart;
+    for (i = 0;  i < numCmds;  i++) {
+	if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) {
+	    codeDeltaNext++;
+	    delta = TclGetInt4AtPtr(codeDeltaNext);
+	    codeDeltaNext += 4;
+	} else {
+	    delta = TclGetInt1AtPtr(codeDeltaNext);
+	    codeDeltaNext++;
+	}
+	codeOffset += delta;
+
+	if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) {
+	    srcDeltaNext++;
+	    delta = TclGetInt4AtPtr(srcDeltaNext);
+	    srcDeltaNext += 4;
+	} else {
+	    delta = TclGetInt1AtPtr(srcDeltaNext);
+	    srcDeltaNext++;
+	}
+	srcOffset += delta;
+
+	if ((unsigned) *srcLengthNext == (unsigned) 0xFF) {
+	    srcLengthNext++;
+	    srcLen = TclGetInt4AtPtr(srcLengthNext);
+	    srcLengthNext += 4;
+	} else {
+	    srcLen = TclGetInt1AtPtr(srcLengthNext);
+	    srcLengthNext++;
+	}
+
+	/*
+	 * Print instructions before command i.
+	 */
+
+	while ((pc-codeStart) < codeOffset) {
+	    Tcl_AppendToObj(bufferObj, "    ", -1);
+	    pc += FormatInstruction(codePtr, pc, bufferObj);
+	}
+
+	Tcl_AppendPrintfToObj(bufferObj, "  Command %d: ", i+1);
+	PrintSourceToObj(bufferObj, (codePtr->source + srcOffset),
+		TclMin(srcLen, 55));
+	Tcl_AppendToObj(bufferObj, "\n", -1);
+    }
+    if (pc < codeLimit) {
+	/*
+	 * Print instructions after the last command.
+	 */
+
+	while (pc < codeLimit) {
+	    Tcl_AppendToObj(bufferObj, "    ", -1);
+	    pc += FormatInstruction(codePtr, pc, bufferObj);
+	}
+    }
+    return bufferObj;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * FormatInstruction --
+ *
+ *	Appends a representation of a bytecode instruction to a Tcl_Obj.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+FormatInstruction(
+    ByteCode *codePtr,		/* Bytecode containing the instruction. */
+    const unsigned char *pc,	/* Points to first byte of instruction. */
+    Tcl_Obj *bufferObj)		/* Object to append instruction info to. */
+{
+    Proc *procPtr = codePtr->procPtr;
+    unsigned char opCode = *pc;
+    register const InstructionDesc *instDesc = &tclInstructionTable[opCode];
+    unsigned char *codeStart = codePtr->codeStart;
+    unsigned pcOffset = pc - codeStart;
+    int opnd = 0, i, j, numBytes = 1;
+    int localCt = procPtr ? procPtr->numCompiledLocals : 0;
+    CompiledLocal *localPtr = procPtr ? procPtr->firstLocalPtr : NULL;
+    char suffixBuffer[128];	/* Additional info to print after main opcode
+				 * and immediates. */
+    char *suffixSrc = NULL;
+    Tcl_Obj *suffixObj = NULL;
+    AuxData *auxPtr = NULL;
+
+    suffixBuffer[0] = '\0';
+    Tcl_AppendPrintfToObj(bufferObj, "(%u) %s ", pcOffset, instDesc->name);
+    for (i = 0;  i < instDesc->numOperands;  i++) {
+	switch (instDesc->opTypes[i]) {
+	case OPERAND_INT1:
+	    opnd = TclGetInt1AtPtr(pc+numBytes); numBytes++;
+	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
+	    break;
+	case OPERAND_INT4:
+	    opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4;
+	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
+	    break;
+	case OPERAND_UINT1:
+	    opnd = TclGetUInt1AtPtr(pc+numBytes); numBytes++;
+	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
+	    break;
+	case OPERAND_UINT4:
+	    opnd = TclGetUInt4AtPtr(pc+numBytes); numBytes += 4;
+	    if (opCode == INST_START_CMD) {
+		sprintf(suffixBuffer+strlen(suffixBuffer),
+			", %u cmds start here", opnd);
+	    }
+	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
+	    break;
+	case OPERAND_OFFSET1:
+	    opnd = TclGetInt1AtPtr(pc+numBytes); numBytes++;
+	    sprintf(suffixBuffer, "pc %u", pcOffset+opnd);
+	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
+	    break;
+	case OPERAND_OFFSET4:
+	    opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4;
+	    if (opCode == INST_START_CMD) {
+		sprintf(suffixBuffer, "next cmd at pc %u", pcOffset+opnd);
+	    } else {
+		sprintf(suffixBuffer, "pc %u", pcOffset+opnd);
+	    }
+	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
+	    break;
+	case OPERAND_LIT1:
+	    opnd = TclGetUInt1AtPtr(pc+numBytes); numBytes++;
+	    suffixObj = codePtr->objArrayPtr[opnd];
+	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
+	    break;
+	case OPERAND_LIT4:
+	    opnd = TclGetUInt4AtPtr(pc+numBytes); numBytes += 4;
+	    suffixObj = codePtr->objArrayPtr[opnd];
+	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
+	    break;
+	case OPERAND_AUX4:
+	    opnd = TclGetUInt4AtPtr(pc+numBytes); numBytes += 4;
+	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
+	    auxPtr = &codePtr->auxDataArrayPtr[opnd];
+	    break;
+	case OPERAND_IDX4:
+	    opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4;
+	    if (opnd >= -1) {
+		Tcl_AppendPrintfToObj(bufferObj, "%d ", opnd);
+	    } else if (opnd == -2) {
+		Tcl_AppendPrintfToObj(bufferObj, "end ");
+	    } else {
+		Tcl_AppendPrintfToObj(bufferObj, "end-%d ", -2-opnd);
+	    }
+	    break;
+	case OPERAND_LVT1:
+	    opnd = TclGetUInt1AtPtr(pc+numBytes);
+	    numBytes++;
+	    goto printLVTindex;
+	case OPERAND_LVT4:
+	    opnd = TclGetUInt4AtPtr(pc+numBytes);
+	    numBytes += 4;
+	printLVTindex:
+	    if (localPtr != NULL) {
+		if (opnd >= localCt) {
+		    Tcl_Panic("FormatInstruction: bad local var index %u (%u locals)",
+			    (unsigned) opnd, localCt);
+		}
+		for (j = 0;  j < opnd;  j++) {
+		    localPtr = localPtr->nextPtr;
+		}
+		if (TclIsVarTemporary(localPtr)) {
+		    sprintf(suffixBuffer, "temp var %u", (unsigned) opnd);
+		} else {
+		    sprintf(suffixBuffer, "var ");
+		    suffixSrc = localPtr->name;
+		}
+	    }
+	    Tcl_AppendPrintfToObj(bufferObj, "%%v%u ", (unsigned) opnd);
+	    break;
+	case OPERAND_SCLS1:
+	    opnd = TclGetUInt1AtPtr(pc+numBytes); numBytes++;
+	    Tcl_AppendPrintfToObj(bufferObj, "%s ",
+		    tclStringClassTable[opnd].name);
+	    break;
+	case OPERAND_NONE:
+	default:
+	    break;
+	}
+    }
+    if (suffixObj) {
+	const char *bytes;
+	int length;
+
+	Tcl_AppendToObj(bufferObj, "\t# ", -1);
+	bytes = Tcl_GetStringFromObj(codePtr->objArrayPtr[opnd], &length);
+	PrintSourceToObj(bufferObj, bytes, TclMin(length, 40));
+    } else if (suffixBuffer[0]) {
+	Tcl_AppendPrintfToObj(bufferObj, "\t# %s", suffixBuffer);
+	if (suffixSrc) {
+	    PrintSourceToObj(bufferObj, suffixSrc, 40);
+	}
+    }
+    Tcl_AppendToObj(bufferObj, "\n", -1);
+    if (auxPtr && auxPtr->type->printProc) {
+	Tcl_AppendToObj(bufferObj, "\t\t[", -1);
+	auxPtr->type->printProc(auxPtr->clientData, bufferObj, codePtr,
+		pcOffset);
+	Tcl_AppendToObj(bufferObj, "]\n", -1);
+    }
+    return numBytes;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclGetInnerContext --
+ *
+ *	If possible, returns a list capturing the inner context. Otherwise
+ *	return NULL.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+TclGetInnerContext(
+    Tcl_Interp *interp,
+    const unsigned char *pc,
+    Tcl_Obj **tosPtr)
+{
+    int objc = 0, off = 0;
+    Tcl_Obj *result;
+    Interp *iPtr = (Interp *) interp;
+
+    switch (*pc) {
+    case INST_STR_LEN:
+    case INST_LNOT:
+    case INST_BITNOT:
+    case INST_UMINUS:
+    case INST_UPLUS:
+    case INST_TRY_CVT_TO_NUMERIC:
+    case INST_EXPAND_STKTOP:
+    case INST_EXPR_STK:
+        objc = 1;
+        break;
+
+    case INST_LIST_IN:
+    case INST_LIST_NOT_IN:	/* Basic list containment operators. */
+    case INST_STR_EQ:
+    case INST_STR_NEQ:		/* String (in)equality check */
+    case INST_STR_CMP:		/* String compare. */
+    case INST_STR_INDEX:
+    case INST_STR_MATCH:
+    case INST_REGEXP:
+    case INST_EQ:
+    case INST_NEQ:
+    case INST_LT:
+    case INST_GT:
+    case INST_LE:
+    case INST_GE:
+    case INST_MOD:
+    case INST_LSHIFT:
+    case INST_RSHIFT:
+    case INST_BITOR:
+    case INST_BITXOR:
+    case INST_BITAND:
+    case INST_EXPON:
+    case INST_ADD:
+    case INST_SUB:
+    case INST_DIV:
+    case INST_MULT:
+        objc = 2;
+        break;
+
+    case INST_RETURN_STK:
+        /* early pop. TODO: dig out opt dict too :/ */
+        objc = 1;
+        break;
+
+    case INST_SYNTAX:
+    case INST_RETURN_IMM:
+        objc = 2;
+        break;
+
+    case INST_INVOKE_STK4:
+	objc = TclGetUInt4AtPtr(pc+1);
+        break;
+
+    case INST_INVOKE_STK1:
+	objc = TclGetUInt1AtPtr(pc+1);
+	break;
+    }
+
+    result = iPtr->innerContext;
+    if (Tcl_IsShared(result)) {
+        Tcl_DecrRefCount(result);
+        iPtr->innerContext = result = Tcl_NewListObj(objc + 1, NULL);
+        Tcl_IncrRefCount(result);
+    } else {
+        int len;
+
+        /*
+         * Reset while keeping the list intrep as much as possible.
+         */
+
+	Tcl_ListObjLength(interp, result, &len);
+        Tcl_ListObjReplace(interp, result, 0, len, 0, NULL);
+    }
+    Tcl_ListObjAppendElement(NULL, result, TclNewInstNameObj(*pc));
+
+    for (; objc>0 ; objc--) {
+        Tcl_Obj *objPtr;
+
+        objPtr = tosPtr[1 - objc + off];
+        if (!objPtr) {
+            Tcl_Panic("InnerContext: bad tos -- appending null object");
+        }
+        if ((objPtr->refCount<=0)
+#ifdef TCL_MEM_DEBUG
+                || (objPtr->refCount==0x61616161)
+#endif
+        ) {
+            Tcl_Panic("InnerContext: bad tos -- appending freed object %p",
+                    objPtr);
+        }
+        Tcl_ListObjAppendElement(NULL, result, objPtr);
+    }
+
+    return result;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNewInstNameObj --
+ *
+ *	Creates a new InstName Tcl_Obj based on the given instruction
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+TclNewInstNameObj(
+    unsigned char inst)
+{
+    Tcl_Obj *objPtr = Tcl_NewObj();
+
+    objPtr->typePtr = &tclInstNameType;
+    objPtr->internalRep.longValue = (long) inst;
+    objPtr->bytes = NULL;
+
+    return objPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * UpdateStringOfInstName --
+ *
+ *	Update the string representation for an instruction name object.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+UpdateStringOfInstName(
+    Tcl_Obj *objPtr)
+{
+    int inst = objPtr->internalRep.longValue;
+    char *s, buf[20];
+    int len;
+
+    if ((inst < 0) || (inst > LAST_INST_OPCODE)) {
+        sprintf(buf, "inst_%d", inst);
+        s = buf;
+    } else {
+        s = (char *) tclInstructionTable[objPtr->internalRep.longValue].name;
+    }
+    len = strlen(s);
+    objPtr->bytes = ckalloc(len + 1);
+    memcpy(objPtr->bytes, s, len + 1);
+    objPtr->length = len;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * PrintSourceToObj --
+ *
+ *	Appends a quoted representation of a string to a Tcl_Obj.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+PrintSourceToObj(
+    Tcl_Obj *appendObj,		/* The object to print the source to. */
+    const char *stringPtr,	/* The string to print. */
+    int maxChars)		/* Maximum number of chars to print. */
+{
+    register const char *p;
+    register int i = 0, len;
+
+    if (stringPtr == NULL) {
+	Tcl_AppendToObj(appendObj, "\"\"", -1);
+	return;
+    }
+
+    Tcl_AppendToObj(appendObj, "\"", -1);
+    p = stringPtr;
+    for (;  (*p != '\0') && (i < maxChars);  p+=len) {
+	Tcl_UniChar ch;
+
+	len = TclUtfToUniChar(p, &ch);
+	switch (ch) {
+	case '"':
+	    Tcl_AppendToObj(appendObj, "\\\"", -1);
+	    i += 2;
+	    continue;
+	case '\f':
+	    Tcl_AppendToObj(appendObj, "\\f", -1);
+	    i += 2;
+	    continue;
+	case '\n':
+	    Tcl_AppendToObj(appendObj, "\\n", -1);
+	    i += 2;
+	    continue;
+	case '\r':
+	    Tcl_AppendToObj(appendObj, "\\r", -1);
+	    i += 2;
+	    continue;
+	case '\t':
+	    Tcl_AppendToObj(appendObj, "\\t", -1);
+	    i += 2;
+	    continue;
+	case '\v':
+	    Tcl_AppendToObj(appendObj, "\\v", -1);
+	    i += 2;
+	    continue;
+	default:
+	    if (ch < 0x20 || ch >= 0x7f) {
+		Tcl_AppendPrintfToObj(appendObj, "\\u%04x", ch);
+		i += 6;
+	    } else {
+		Tcl_AppendPrintfToObj(appendObj, "%c", ch);
+		i++;
+	    }
+	    continue;
+	}
+    }
+    Tcl_AppendToObj(appendObj, "\"", -1);
+    if (*p != '\0') {
+	Tcl_AppendToObj(appendObj, "...", -1);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DisassembleByteCodeAsDicts --
+ *
+ *	Given an object which is of bytecode type, return a disassembled
+ *	version of the bytecode (in a new refcount 0 object) in a dictionary.
+ *	No guarantees are made about the details of the contents of the
+ *	result, but it is intended to be more readable than the old output
+ *	format.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static Tcl_Obj *
+DisassembleByteCodeAsDicts(
+    Tcl_Obj *objPtr)		/* The bytecode-holding value to take apart */
+{
+    ByteCode *codePtr = BYTECODE(objPtr);
+    Tcl_Obj *description, *literals, *variables, *instructions, *inst;
+    Tcl_Obj *aux, *exn, *commands;
+    unsigned char *pc, *opnd, *codeOffPtr, *codeLenPtr, *srcOffPtr, *srcLenPtr;
+    int codeOffset, codeLength, sourceOffset, sourceLength;
+    int i, val;
+
+    /*
+     * Get the literals from the bytecode.
+     */
+
+    literals = Tcl_NewObj();
+    for (i=0 ; i<codePtr->numLitObjects ; i++) {
+	Tcl_ListObjAppendElement(NULL, literals, codePtr->objArrayPtr[i]);
+    }
+
+    /*
+     * Get the variables from the bytecode.
+     */
+
+    variables = Tcl_NewObj();
+    if (codePtr->procPtr) {
+	int localCount = codePtr->procPtr->numCompiledLocals;
+	CompiledLocal *localPtr = codePtr->procPtr->firstLocalPtr;
+
+	for (i=0 ; i<localCount ; i++,localPtr=localPtr->nextPtr) {
+	    Tcl_Obj *descriptor[2];
+
+	    descriptor[0] = Tcl_NewObj();
+	    if (!(localPtr->flags & (VAR_ARRAY|VAR_LINK))) {
+		Tcl_ListObjAppendElement(NULL, descriptor[0],
+			Tcl_NewStringObj("scalar", -1));
+	    }
+	    if (localPtr->flags & VAR_ARRAY) {
+		Tcl_ListObjAppendElement(NULL, descriptor[0],
+			Tcl_NewStringObj("array", -1));
+	    }
+	    if (localPtr->flags & VAR_LINK) {
+		Tcl_ListObjAppendElement(NULL, descriptor[0],
+			Tcl_NewStringObj("link", -1));
+	    }
+	    if (localPtr->flags & VAR_ARGUMENT) {
+		Tcl_ListObjAppendElement(NULL, descriptor[0],
+			Tcl_NewStringObj("arg", -1));
+	    }
+	    if (localPtr->flags & VAR_TEMPORARY) {
+		Tcl_ListObjAppendElement(NULL, descriptor[0],
+			Tcl_NewStringObj("temp", -1));
+	    }
+	    if (localPtr->flags & VAR_RESOLVED) {
+		Tcl_ListObjAppendElement(NULL, descriptor[0],
+			Tcl_NewStringObj("resolved", -1));
+	    }
+	    if (localPtr->flags & VAR_TEMPORARY) {
+		Tcl_ListObjAppendElement(NULL, variables,
+			Tcl_NewListObj(1, descriptor));
+	    } else {
+		descriptor[1] = Tcl_NewStringObj(localPtr->name, -1);
+		Tcl_ListObjAppendElement(NULL, variables,
+			Tcl_NewListObj(2, descriptor));
+	    }
+	}
+    }
+
+    /*
+     * Get the instructions from the bytecode.
+     */
+
+    instructions = Tcl_NewObj();
+    for (pc=codePtr->codeStart; pc<codePtr->codeStart+codePtr->numCodeBytes;){
+	const InstructionDesc *instDesc = &tclInstructionTable[*pc];
+	int address = pc - codePtr->codeStart;
+
+	inst = Tcl_NewObj();
+	Tcl_ListObjAppendElement(NULL, inst, Tcl_NewStringObj(
+		instDesc->name, -1));
+	opnd = pc + 1;
+	for (i=0 ; i<instDesc->numOperands ; i++) {
+	    switch (instDesc->opTypes[i]) {
+	    case OPERAND_INT1:
+		val = TclGetInt1AtPtr(opnd);
+		opnd += 1;
+		goto formatNumber;
+	    case OPERAND_UINT1:
+		val = TclGetUInt1AtPtr(opnd);
+		opnd += 1;
+		goto formatNumber;
+	    case OPERAND_INT4:
+		val = TclGetInt4AtPtr(opnd);
+		opnd += 4;
+		goto formatNumber;
+	    case OPERAND_UINT4:
+		val = TclGetUInt4AtPtr(opnd);
+		opnd += 4;
+	    formatNumber:
+		Tcl_ListObjAppendElement(NULL, inst, Tcl_NewIntObj(val));
+		break;
+
+	    case OPERAND_OFFSET1:
+		val = TclGetInt1AtPtr(opnd);
+		opnd += 1;
+		goto formatAddress;
+	    case OPERAND_OFFSET4:
+		val = TclGetInt4AtPtr(opnd);
+		opnd += 4;
+	    formatAddress:
+		Tcl_ListObjAppendElement(NULL, inst, Tcl_ObjPrintf(
+			"pc %d", address + val));
+		break;
+
+	    case OPERAND_LIT1:
+		val = TclGetUInt1AtPtr(opnd);
+		opnd += 1;
+		goto formatLiteral;
+	    case OPERAND_LIT4:
+		val = TclGetUInt4AtPtr(opnd);
+		opnd += 4;
+	    formatLiteral:
+		Tcl_ListObjAppendElement(NULL, inst, Tcl_ObjPrintf(
+			"@%d", val));
+		break;
+
+	    case OPERAND_LVT1:
+		val = TclGetUInt1AtPtr(opnd);
+		opnd += 1;
+		goto formatVariable;
+	    case OPERAND_LVT4:
+		val = TclGetUInt4AtPtr(opnd);
+		opnd += 4;
+	    formatVariable:
+		Tcl_ListObjAppendElement(NULL, inst, Tcl_ObjPrintf(
+			"%%%d", val));
+		break;
+	    case OPERAND_IDX4:
+		val = TclGetInt4AtPtr(opnd);
+		opnd += 4;
+		if (val >= -1) {
+		    Tcl_ListObjAppendElement(NULL, inst, Tcl_ObjPrintf(
+			    ".%d", val));
+		} else if (val == -2) {
+		    Tcl_ListObjAppendElement(NULL, inst, Tcl_NewStringObj(
+			    ".end", -1));
+		} else {
+		    Tcl_ListObjAppendElement(NULL, inst, Tcl_ObjPrintf(
+			    ".end-%d", -2-val));
+		}
+		break;
+	    case OPERAND_AUX4:
+		val = TclGetInt4AtPtr(opnd);
+		opnd += 4;
+		Tcl_ListObjAppendElement(NULL, inst, Tcl_ObjPrintf(
+			"?%d", val));
+		break;
+	    case OPERAND_SCLS1:
+		val = TclGetUInt1AtPtr(opnd);
+		opnd++;
+		Tcl_ListObjAppendElement(NULL, inst, Tcl_ObjPrintf(
+			"=%s", tclStringClassTable[val].name));
+		break;
+	    case OPERAND_NONE:
+		Tcl_Panic("opcode %d with more than zero 'no' operands", *pc);
+	    }
+	}
+	Tcl_DictObjPut(NULL, instructions, Tcl_NewIntObj(address), inst);
+	pc += instDesc->numBytes;
+    }
+
+    /*
+     * Get the auxiliary data from the bytecode.
+     */
+
+    aux = Tcl_NewObj();
+    for (i=0 ; i<codePtr->numAuxDataItems ; i++) {
+	AuxData *auxData = &codePtr->auxDataArrayPtr[i];
+	Tcl_Obj *auxDesc = Tcl_NewStringObj(auxData->type->name, -1);
+
+	if (auxData->type->disassembleProc) {
+	    Tcl_Obj *desc = Tcl_NewObj();
+
+	    Tcl_DictObjPut(NULL, desc, Tcl_NewStringObj("name", -1), auxDesc);
+	    auxDesc = desc;
+	    auxData->type->disassembleProc(auxData->clientData, auxDesc,
+		    codePtr, 0);
+	} else if (auxData->type->printProc) {
+	    Tcl_Obj *desc = Tcl_NewObj();
+
+	    auxData->type->printProc(auxData->clientData, desc, codePtr, 0);
+	    Tcl_ListObjAppendElement(NULL, auxDesc, desc);
+	}
+	Tcl_ListObjAppendElement(NULL, aux, auxDesc);
+    }
+
+    /*
+     * Get the exception ranges from the bytecode.
+     */
+
+    exn = Tcl_NewObj();
+    for (i=0 ; i<codePtr->numExceptRanges ; i++) {
+	ExceptionRange *rangePtr = &codePtr->exceptArrayPtr[i];
+
+	switch (rangePtr->type) {
+	case LOOP_EXCEPTION_RANGE:
+	    Tcl_ListObjAppendElement(NULL, exn, Tcl_ObjPrintf(
+		    "type %s level %d from %d to %d break %d continue %d",
+		    "loop", rangePtr->nestingLevel, rangePtr->codeOffset,
+		    rangePtr->codeOffset + rangePtr->numCodeBytes - 1,
+		    rangePtr->breakOffset, rangePtr->continueOffset));
+	    break;
+	case CATCH_EXCEPTION_RANGE:
+	    Tcl_ListObjAppendElement(NULL, exn, Tcl_ObjPrintf(
+		    "type %s level %d from %d to %d catch %d",
+		    "catch", rangePtr->nestingLevel, rangePtr->codeOffset,
+		    rangePtr->codeOffset + rangePtr->numCodeBytes - 1,
+		    rangePtr->catchOffset));
+	    break;
+	}
+    }
+
+    /*
+     * Get the command information from the bytecode.
+     *
+     * The way these are encoded in the bytecode is non-trivial; the Decode
+     * macro (which updates its argument and returns the next decoded value)
+     * handles this so that the rest of the code does not.
+     */
+
+#define Decode(ptr) \
+    ((TclGetUInt1AtPtr(ptr) == 0xFF)			\
+	? ((ptr)+=5 , TclGetInt4AtPtr((ptr)-4))		\
+	: ((ptr)+=1 , TclGetInt1AtPtr((ptr)-1)))
+
+    commands = Tcl_NewObj();
+    codeOffPtr = codePtr->codeDeltaStart;
+    codeLenPtr = codePtr->codeLengthStart;
+    srcOffPtr = codePtr->srcDeltaStart;
+    srcLenPtr = codePtr->srcLengthStart;
+    codeOffset = sourceOffset = 0;
+    for (i=0 ; i<codePtr->numCommands ; i++) {
+	Tcl_Obj *cmd;
+
+	codeOffset += Decode(codeOffPtr);
+	codeLength = Decode(codeLenPtr);
+	sourceOffset += Decode(srcOffPtr);
+	sourceLength = Decode(srcLenPtr);
+	cmd = Tcl_NewObj();
+	Tcl_DictObjPut(NULL, cmd, Tcl_NewStringObj("codefrom", -1),
+		Tcl_NewIntObj(codeOffset));
+	Tcl_DictObjPut(NULL, cmd, Tcl_NewStringObj("codeto", -1),
+		Tcl_NewIntObj(codeOffset + codeLength - 1));
+
+	/*
+	 * Convert byte offsets to character offsets; important if multibyte
+	 * characters are present in the source!
+	 */
+
+	Tcl_DictObjPut(NULL, cmd, Tcl_NewStringObj("scriptfrom", -1),
+		Tcl_NewIntObj(Tcl_NumUtfChars(codePtr->source,
+			sourceOffset)));
+	Tcl_DictObjPut(NULL, cmd, Tcl_NewStringObj("scriptto", -1),
+		Tcl_NewIntObj(Tcl_NumUtfChars(codePtr->source,
+			sourceOffset + sourceLength - 1)));
+	Tcl_DictObjPut(NULL, cmd, Tcl_NewStringObj("script", -1),
+		Tcl_NewStringObj(codePtr->source+sourceOffset, sourceLength));
+	Tcl_ListObjAppendElement(NULL, commands, cmd);
+    }
+
+#undef Decode
+
+    /*
+     * Build the overall result.
+     */
+
+    description = Tcl_NewObj();
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("literals", -1),
+	    literals);
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("variables", -1),
+	    variables);
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("exception", -1), exn);
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("instructions", -1),
+	    instructions);
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("auxiliary", -1), aux);
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("commands", -1),
+	    commands);
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("script", -1),
+	    Tcl_NewStringObj(codePtr->source, codePtr->numSrcBytes));
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("namespace", -1),
+	    Tcl_NewStringObj(codePtr->nsPtr->fullName, -1));
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("stackdepth", -1),
+	    Tcl_NewIntObj(codePtr->maxStackDepth));
+    Tcl_DictObjPut(NULL, description, Tcl_NewStringObj("exceptdepth", -1),
+	    Tcl_NewIntObj(codePtr->maxExceptDepth));
+    return description;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_DisassembleObjCmd --
+ *
+ *	Implementation of the "::tcl::unsupported::disassemble" command. This
+ *	command is not documented, but will disassemble procedures, lambda
+ *	terms and general scripts. Note that will compile terms if necessary
+ *	in order to disassemble them.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+Tcl_DisassembleObjCmd(
+    ClientData clientData,	/* What type of operation. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    static const char *const types[] = {
+	"lambda", "method", "objmethod", "proc", "script", NULL
+    };
+    enum Types {
+	DISAS_LAMBDA, DISAS_CLASS_METHOD, DISAS_OBJECT_METHOD, DISAS_PROC,
+	DISAS_SCRIPT
+    };
+    int idx, result;
+    Tcl_Obj *codeObjPtr = NULL;
+    Proc *procPtr = NULL;
+    Tcl_HashEntry *hPtr;
+    Object *oPtr;
+
+    if (objc < 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "type ...");
+	return TCL_ERROR;
+    }
+    if (Tcl_GetIndexFromObj(interp, objv[1], types, "type", 0, &idx)!=TCL_OK){
+	return TCL_ERROR;
+    }
+
+    switch ((enum Types) idx) {
+    case DISAS_LAMBDA: {
+	Command cmd;
+	Tcl_Obj *nsObjPtr;
+	Tcl_Namespace *nsPtr;
+
+	/*
+	 * Compile (if uncompiled) and disassemble a lambda term.
+	 *
+	 * WARNING! Pokes inside the lambda objtype.
+	 */
+
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "lambdaTerm");
+	    return TCL_ERROR;
+	}
+	if (objv[2]->typePtr == &tclLambdaType) {
+	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
+	}
+	if (procPtr == NULL || procPtr->iPtr != (Interp *) interp) {
+	    result = tclLambdaType.setFromAnyProc(interp, objv[2]);
+	    if (result != TCL_OK) {
+		return result;
+	    }
+	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
+	}
+
+	memset(&cmd, 0, sizeof(Command));
+	nsObjPtr = objv[2]->internalRep.twoPtrValue.ptr2;
+	result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
+	if (result != TCL_OK) {
+	    return result;
+	}
+	cmd.nsPtr = (Namespace *) nsPtr;
+	procPtr->cmdPtr = &cmd;
+	result = TclPushProcCallFrame(procPtr, interp, objc, objv, 1);
+	if (result != TCL_OK) {
+	    return result;
+	}
+	TclPopStackFrame(interp);
+	codeObjPtr = procPtr->bodyPtr;
+	break;
+    }
+    case DISAS_PROC:
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "procName");
+	    return TCL_ERROR;
+	}
+
+	procPtr = TclFindProc((Interp *) interp, TclGetString(objv[2]));
+	if (procPtr == NULL) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "\"%s\" isn't a procedure", TclGetString(objv[2])));
+	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "PROC",
+		    TclGetString(objv[2]), NULL);
+	    return TCL_ERROR;
+	}
+
+	/*
+	 * Compile (if uncompiled) and disassemble a procedure.
+	 */
+
+	result = TclPushProcCallFrame(procPtr, interp, 2, objv+1, 1);
+	if (result != TCL_OK) {
+	    return result;
+	}
+	TclPopStackFrame(interp);
+	codeObjPtr = procPtr->bodyPtr;
+	break;
+    case DISAS_SCRIPT:
+	/*
+	 * Compile and disassemble a script.
+	 */
+
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "script");
+	    return TCL_ERROR;
+	}
+	if ((objv[2]->typePtr != &tclByteCodeType)
+		&& (TclSetByteCodeFromAny(interp, objv[2], NULL, NULL) != TCL_OK)) {
+	    return TCL_ERROR;
+	}
+	codeObjPtr = objv[2];
+	break;
+
+    case DISAS_CLASS_METHOD:
+	if (objc != 4) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "className methodName");
+	    return TCL_ERROR;
+	}
+
+	/*
+	 * Look up the body of a class method.
+	 */
+
+	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
+	if (oPtr == NULL) {
+	    return TCL_ERROR;
+	}
+	if (oPtr->classPtr == NULL) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "\"%s\" is not a class", TclGetString(objv[2])));
+	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CLASS",
+		    TclGetString(objv[2]), NULL);
+	    return TCL_ERROR;
+	}
+	hPtr = Tcl_FindHashEntry(&oPtr->classPtr->classMethods,
+		(char *) objv[3]);
+	goto methodBody;
+    case DISAS_OBJECT_METHOD:
+	if (objc != 4) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "objectName methodName");
+	    return TCL_ERROR;
+	}
+
+	/*
+	 * Look up the body of an instance method.
+	 */
+
+	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
+	if (oPtr == NULL) {
+	    return TCL_ERROR;
+	}
+	if (oPtr->methodsPtr == NULL) {
+	    goto unknownMethod;
+	}
+	hPtr = Tcl_FindHashEntry(oPtr->methodsPtr, (char *) objv[3]);
+
+	/*
+	 * Compile (if necessary) and disassemble a method body.
+	 */
+
+    methodBody:
+	if (hPtr == NULL) {
+	unknownMethod:
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "unknown method \"%s\"", TclGetString(objv[3])));
+	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "METHOD",
+		    TclGetString(objv[3]), NULL);
+	    return TCL_ERROR;
+	}
+	procPtr = TclOOGetProcFromMethod(Tcl_GetHashValue(hPtr));
+	if (procPtr == NULL) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "body not available for this kind of method", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
+		    "METHODTYPE", NULL);
+	    return TCL_ERROR;
+	}
+	if (procPtr->bodyPtr->typePtr != &tclByteCodeType) {
+	    Command cmd;
+
+	    /*
+	     * Yes, this is ugly, but we need to pass the namespace in to the
+	     * compiler in two places.
+	     */
+
+	    cmd.nsPtr = (Namespace *) oPtr->namespacePtr;
+	    procPtr->cmdPtr = &cmd;
+	    result = TclProcCompileProc(interp, procPtr, procPtr->bodyPtr,
+		    (Namespace *) oPtr->namespacePtr, "body of method",
+		    TclGetString(objv[3]));
+	    procPtr->cmdPtr = NULL;
+	    if (result != TCL_OK) {
+		return result;
+	    }
+	}
+	codeObjPtr = procPtr->bodyPtr;
+	break;
+    default:
+	CLANG_ASSERT(0);
+    }
+
+    /*
+     * Do the actual disassembly.
+     */
+
+    if (BYTECODE(codeObjPtr)->flags & TCL_BYTECODE_PRECOMPILED) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"may not disassemble prebuilt bytecode", -1));
+	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
+		"BYTECODE", NULL);
+	return TCL_ERROR;
+    }
+    if (PTR2INT(clientData)) {
+	Tcl_SetObjResult(interp, DisassembleByteCodeAsDicts(codeObjPtr));
+    } else {
+	Tcl_SetObjResult(interp, TclDisassembleByteCodeObj(codeObjPtr));
+    }
+    return TCL_OK;
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * tab-width: 8
+ * End:
+ */
diff --git a/generic/tclEncoding.c b/generic/tclEncoding.c
index 7a55724..a7ef199 100644
--- a/generic/tclEncoding.c
+++ b/generic/tclEncoding.c
@@ -180,8 +180,9 @@ TCL_DECLARE_MUTEX(encodingMutex)
  * the system encoding will be used to perform the conversion.
  */
 
-static Tcl_Encoding defaultEncoding;
-static Tcl_Encoding systemEncoding;
+static Tcl_Encoding defaultEncoding = NULL;
+static Tcl_Encoding systemEncoding = NULL;
+Tcl_Encoding tclIdentityEncoding = NULL;
 
 /*
  * The following variable is used in the sparse matrix code for a
@@ -270,7 +271,7 @@ static int		Iso88591ToUtfProc(ClientData clientData,
 			    int *dstCharsPtr);
 
 /*
- * A Tcl_ObjType for holding a cached Tcl_Encoding in the otherValuePtr field
+ * A Tcl_ObjType for holding a cached Tcl_Encoding in the twoPtrValue.ptr1 field
  * of the intrep. This should help the lifetime of encodings be more useful.
  * See concerns raised in [Bug 1077262].
  */
@@ -313,7 +314,7 @@ Tcl_GetEncodingFromObj(
 	    return TCL_ERROR;
 	}
 	TclFreeIntRep(objPtr);
-	objPtr->internalRep.otherValuePtr = encoding;
+	objPtr->internalRep.twoPtrValue.ptr1 = encoding;
 	objPtr->typePtr = &encodingType;
     }
     *encodingPtr = Tcl_GetEncoding(NULL, name);
@@ -334,7 +335,7 @@ static void
 FreeEncodingIntRep(
     Tcl_Obj *objPtr)
 {
-    Tcl_FreeEncoding(objPtr->internalRep.otherValuePtr);
+    Tcl_FreeEncoding(objPtr->internalRep.twoPtrValue.ptr1);
     objPtr->typePtr = NULL;
 }
 
@@ -353,7 +354,7 @@ DupEncodingIntRep(
     Tcl_Obj *srcPtr,
     Tcl_Obj *dupPtr)
 {
-    dupPtr->internalRep.otherValuePtr = Tcl_GetEncoding(NULL, srcPtr->bytes);
+    dupPtr->internalRep.twoPtrValue.ptr1 = Tcl_GetEncoding(NULL, srcPtr->bytes);
 }
 
 /*
@@ -567,7 +568,7 @@ TclInitEncodingSubsystem(void)
     type.freeProc	= NULL;
     type.nullSize	= 1;
     type.clientData	= NULL;
-    Tcl_CreateEncoding(&type);
+    tclIdentityEncoding = Tcl_CreateEncoding(&type);
 
     type.encodingName	= "utf-8";
     type.toUtfProc	= UtfExtToUtfIntProc;
@@ -651,6 +652,10 @@ TclFinalizeEncodingSubsystem(void)
     Tcl_MutexLock(&encodingMutex);
     encodingsInitialized = 0;
     FreeEncoding(systemEncoding);
+    systemEncoding = NULL;
+    defaultEncoding = NULL;
+    FreeEncoding(tclIdentityEncoding);
+    tclIdentityEncoding = NULL;
 
     hPtr = Tcl_FirstHashEntry(&encodingTable, &search);
     while (hPtr != NULL) {
@@ -1201,7 +1206,10 @@ Tcl_ExternalToUtf(
 				 * output buffer. */
 {
     const Encoding *encodingPtr;
-    int result, srcRead, dstWrote, dstChars;
+    int result, srcRead, dstWrote, dstChars = 0;
+    int noTerminate = flags & TCL_ENCODING_NO_TERMINATE;
+    int charLimited = (flags & TCL_ENCODING_CHAR_LIMIT) && dstCharsPtr;
+    int maxChars = INT_MAX;
     Tcl_EncodingState state;
 
     if (encoding == NULL) {
@@ -1226,19 +1234,40 @@ Tcl_ExternalToUtf(
     }
     if (dstCharsPtr == NULL) {
 	dstCharsPtr = &dstChars;
+	flags &= ~TCL_ENCODING_CHAR_LIMIT;
+    } else if (charLimited) {
+	maxChars = *dstCharsPtr;
     }
 
-    /*
-     * If there are any null characters in the middle of the buffer, they will
-     * converted to the UTF-8 null character (\xC080). To get the actual \0 at
-     * the end of the destination buffer, we need to append it manually.
-     */
+    if (!noTerminate) {
+	/*
+	 * If there are any null characters in the middle of the buffer,
+	 * they will converted to the UTF-8 null character (\xC080). To get
+	 * the actual \0 at the end of the destination buffer, we need to
+	 * append it manually.  First make room for it...
+	 */
 
-    dstLen--;
-    result = encodingPtr->toUtfProc(encodingPtr->clientData, src, srcLen,
-	    flags, statePtr, dst, dstLen, srcReadPtr, dstWrotePtr,
-	    dstCharsPtr);
-    dst[*dstWrotePtr] = '\0';
+	dstLen--;
+    }
+    do {
+	int savedFlags = flags;
+	Tcl_EncodingState savedState = *statePtr;
+
+	result = encodingPtr->toUtfProc(encodingPtr->clientData, src, srcLen,
+		flags, statePtr, dst, dstLen, srcReadPtr, dstWrotePtr,
+		dstCharsPtr);
+	if (*dstCharsPtr <= maxChars) {
+	    break;
+	}
+	dstLen = Tcl_UtfAtIndex(dst, maxChars) - 1 - dst + TCL_UTF_MAX;
+	flags = savedFlags;
+	*statePtr = savedState;
+    } while (1);
+    if (!noTerminate) {
+	/* ...and then append it */
+
+	dst[*dstWrotePtr] = '\0';
+    }
 
     return result;
 }
@@ -2102,6 +2131,9 @@ BinaryProc(
     if (dstLen < 0) {
 	dstLen = 0;
     }
+    if ((flags & TCL_ENCODING_CHAR_LIMIT) && srcLen > *dstCharsPtr) {
+	srcLen = *dstCharsPtr;
+    }
     if (srcLen > dstLen) {
 	srcLen = dstLen;
 	result = TCL_CONVERT_NOSPACE;
@@ -2262,7 +2294,7 @@ UtfToUtfProc(
 {
     const char *srcStart, *srcEnd, *srcClose;
     const char *dstStart, *dstEnd;
-    int result, numChars;
+    int result, numChars, charLimit = INT_MAX;
     Tcl_UniChar ch;
 
     result = TCL_OK;
@@ -2273,11 +2305,14 @@ UtfToUtfProc(
     if ((flags & TCL_ENCODING_END) == 0) {
 	srcClose -= TCL_UTF_MAX;
     }
+    if (flags & TCL_ENCODING_CHAR_LIMIT) {
+	charLimit = *dstCharsPtr;
+    }
 
     dstStart = dst;
     dstEnd = dst + dstLen - TCL_UTF_MAX;
 
-    for (numChars = 0; src < srcEnd; numChars++) {
+    for (numChars = 0; src < srcEnd && numChars <= charLimit; numChars++) {
 	if ((src > srcClose) && (!Tcl_UtfCharComplete(src, srcEnd - src))) {
 	    /*
 	     * If there is more string to follow, this will ensure that the
@@ -2299,7 +2334,7 @@ UtfToUtfProc(
 
 	    *dst++ = *src++;
 	} else if (pureNullMode == 1 && UCHAR(*src) == 0xc0 &&
-		UCHAR(*(src+1)) == 0x80) {
+		(src + 1 < srcEnd) && UCHAR(*(src+1)) == 0x80) {
 	    /*
 	     * Convert 0xc080 to real nulls when we are in output mode.
 	     */
@@ -2373,9 +2408,12 @@ UnicodeToUtfProc(
 {
     const char *srcStart, *srcEnd;
     const char *dstEnd, *dstStart;
-    int result, numChars;
+    int result, numChars, charLimit = INT_MAX;
     Tcl_UniChar ch;
 
+    if (flags & TCL_ENCODING_CHAR_LIMIT) {
+	charLimit = *dstCharsPtr;
+    }
     result = TCL_OK;
     if ((srcLen % sizeof(Tcl_UniChar)) != 0) {
 	result = TCL_CONVERT_MULTIBYTE;
@@ -2389,7 +2427,7 @@ UnicodeToUtfProc(
     dstStart = dst;
     dstEnd = dst + dstLen - TCL_UTF_MAX;
 
-    for (numChars = 0; src < srcEnd; numChars++) {
+    for (numChars = 0; src < srcEnd && numChars <= charLimit; numChars++) {
 	if (dst > dstEnd) {
 	    result = TCL_CONVERT_NOSPACE;
 	    break;
@@ -2557,12 +2595,15 @@ TableToUtfProc(
 {
     const char *srcStart, *srcEnd;
     const char *dstEnd, *dstStart, *prefixBytes;
-    int result, byte, numChars;
+    int result, byte, numChars, charLimit = INT_MAX;
     Tcl_UniChar ch;
     const unsigned short *const *toUnicode;
     const unsigned short *pageZero;
     TableEncodingData *dataPtr = clientData;
 
+    if (flags & TCL_ENCODING_CHAR_LIMIT) {
+	charLimit = *dstCharsPtr;
+    }
     srcStart = src;
     srcEnd = src + srcLen;
 
@@ -2574,7 +2615,7 @@ TableToUtfProc(
     pageZero = toUnicode[0];
 
     result = TCL_OK;
-    for (numChars = 0; src < srcEnd; numChars++) {
+    for (numChars = 0; src < srcEnd && numChars <= charLimit; numChars++) {
 	if (dst > dstEnd) {
 	    result = TCL_CONVERT_NOSPACE;
 	    break;
@@ -2788,8 +2829,11 @@ Iso88591ToUtfProc(
 {
     const char *srcStart, *srcEnd;
     const char *dstEnd, *dstStart;
-    int result, numChars;
+    int result, numChars, charLimit = INT_MAX;
 
+    if (flags & TCL_ENCODING_CHAR_LIMIT) {
+	charLimit = *dstCharsPtr;
+    }
     srcStart = src;
     srcEnd = src + srcLen;
 
@@ -2797,7 +2841,7 @@ Iso88591ToUtfProc(
     dstEnd = dst + dstLen - TCL_UTF_MAX;
 
     result = TCL_OK;
-    for (numChars = 0; src < srcEnd; numChars++) {
+    for (numChars = 0; src < srcEnd && numChars <= charLimit; numChars++) {
 	Tcl_UniChar ch;
 
 	if (dst > dstEnd) {
@@ -2958,7 +3002,9 @@ TableFreeProc(
      */
 
     ckfree(dataPtr->toUnicode);
+    dataPtr->toUnicode = NULL;
     ckfree(dataPtr->fromUnicode);
+    dataPtr->fromUnicode = NULL;
     ckfree(dataPtr);
 }
 
@@ -3011,9 +3057,12 @@ EscapeToUtfProc(
     const char *prefixBytes, *tablePrefixBytes, *srcStart, *srcEnd;
     const unsigned short *const *tableToUnicode;
     const Encoding *encodingPtr;
-    int state, result, numChars;
+    int state, result, numChars, charLimit = INT_MAX;
     const char *dstStart, *dstEnd;
 
+    if (flags & TCL_ENCODING_CHAR_LIMIT) {
+	charLimit = *dstCharsPtr;
+    }
     result = TCL_OK;
     tablePrefixBytes = NULL;	/* lint. */
     tableToUnicode = NULL;	/* lint. */
@@ -3031,7 +3080,7 @@ EscapeToUtfProc(
 	state = 0;
     }
 
-    for (numChars = 0; src < srcEnd; ) {
+    for (numChars = 0; src < srcEnd && numChars <= charLimit; ) {
 	int byte, hi, lo, ch;
 
 	if (dst > dstEnd) {
@@ -3431,6 +3480,7 @@ EscapeFreeProc(
 	subTablePtr = dataPtr->subTables;
 	for (i = 0; i < dataPtr->numSubTables; i++) {
 	    FreeEncoding((Tcl_Encoding) subTablePtr->encodingPtr);
+	    subTablePtr->encodingPtr = NULL;
 	    subTablePtr++;
 	}
     }
diff --git a/generic/tclEnsemble.c b/generic/tclEnsemble.c
index b76c603..473c4bb 100644
--- a/generic/tclEnsemble.c
+++ b/generic/tclEnsemble.c
@@ -4,7 +4,7 @@
  *	Contains support for ensembles (see TIP#112), which provide simple
  *	mechanism for creating composite commands on top of namespaces.
  *
- * Copyright (c) 2005-2010 Donal K. Fellows.
+ * Copyright (c) 2005-2013 Donal K. Fellows.
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -35,6 +35,12 @@ static void		MakeCachedEnsembleCommand(Tcl_Obj *objPtr,
 static void		FreeEnsembleCmdRep(Tcl_Obj *objPtr);
 static void		DupEnsembleCmdRep(Tcl_Obj *objPtr, Tcl_Obj *copyPtr);
 static void		StringOfEnsembleCmdRep(Tcl_Obj *objPtr);
+static void		CompileToInvokedCommand(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Tcl_Obj *replacements,
+			    Command *cmdPtr, CompileEnv *envPtr);
+static int		CompileBasicNArgCommand(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    CompileEnv *envPtr);
 
 /*
  * The lists of subcommands and options for the [namespace ensemble] command.
@@ -78,6 +84,7 @@ const Tcl_ObjType tclEnsembleCmdType = {
     StringOfEnsembleCmdRep,	/* updateStringProc */
     NULL			/* setFromAnyProc */
 };
+
 
 static inline Tcl_Obj *
 NewNsObj(
@@ -1517,6 +1524,14 @@ TclMakeEnsemble(
 	    cmdName = nameParts[nameCount - 1];
 	}
     }
+
+    /*
+     * Switch on compilation always for core ensembles now that we can do
+     * nice bytecode things with them.  Do it now.  Waiting until later will
+     * just cause pointless epoch bumps.
+     */
+
+    ensembleFlags |= ENSEMBLE_COMPILE;
     ensemble = Tcl_CreateEnsemble(interp, cmdName, ns, ensembleFlags);
 
     /*
@@ -1565,21 +1580,15 @@ TclMakeEnsemble(
 			    NULL);
 		}
 		cmdPtr->compileProc = map[i].compileProc;
-		if (map[i].compileProc != NULL) {
-		    ensembleFlags |= ENSEMBLE_COMPILE;
-		}
 	    }
 	}
 	Tcl_SetEnsembleMappingDict(interp, ensemble, mapDict);
-	if (ensembleFlags & ENSEMBLE_COMPILE) {
-	    Tcl_SetEnsembleFlags(interp, ensemble, ensembleFlags);
-	}
     }
 
     Tcl_DStringFree(&buf);
     Tcl_DStringFree(&hiddenBuf);
     if (nameParts != NULL) {
-	Tcl_Free((char *) nameParts);
+	ckfree((char *) nameParts);
     }
     return ensemble;
 }
@@ -1696,7 +1705,7 @@ NsEnsembleImplementationCmdNR(
 
 	if (objv[1+ensemblePtr->numParameters]->typePtr==&tclEnsembleCmdType){
 	    EnsembleCmdRep *ensembleCmd = objv[1+ensemblePtr->numParameters]
-		    ->internalRep.otherValuePtr;
+		    ->internalRep.twoPtrValue.ptr1;
 
 	    if (ensembleCmd->nsPtr == ensemblePtr->nsPtr &&
 		    ensembleCmd->epoch == ensemblePtr->epoch &&
@@ -1892,7 +1901,7 @@ NsEnsembleImplementationCmdNR(
 	 * Hand off to the target command.
 	 */
 
-	iPtr->evalFlags |= TCL_EVAL_REDIRECT;
+	TclSkipTailcall(interp);
 	return TclNREvalObjEx(interp, copyPtr, TCL_EVAL_INVOKE, NULL,INT_MIN);
     }
 
@@ -2100,7 +2109,7 @@ EnsembleUnknownCallback(
      */
 
     Tcl_Preserve(ensemblePtr);
-    ((Interp *) interp)->evalFlags |= TCL_EVAL_REDIRECT;
+    TclSkipTailcall(interp);
     result = Tcl_EvalObjv(interp, paramc, paramv, 0);
     if ((result == TCL_OK) && (ensemblePtr->flags & ENSEMBLE_DEAD)) {
 	if (!Tcl_InterpDeleted(interp)) {
@@ -2174,7 +2183,7 @@ EnsembleUnknownCallback(
 	    }
 	    Tcl_AddErrorInfo(interp, "\n    result of "
 		    "ensemble unknown subcommand handler: ");
-	    Tcl_AddErrorInfo(interp, TclGetString(unknownCmd));
+	    Tcl_AppendObjToErrorInfo(interp, unknownCmd);
 	    Tcl_SetErrorCode(interp, "TCL", "ENSEMBLE", "UNKNOWN_RESULT",
 		    NULL);
 	} else {
@@ -2216,7 +2225,7 @@ MakeCachedEnsembleCommand(
     int length;
 
     if (objPtr->typePtr == &tclEnsembleCmdType) {
-	ensembleCmd = objPtr->internalRep.otherValuePtr;
+	ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1;
 	Tcl_DecrRefCount(ensembleCmd->realPrefixObj);
 	TclNsDecrRefCount(ensembleCmd->nsPtr);
 	ckfree(ensembleCmd->fullSubcmdName);
@@ -2228,7 +2237,7 @@ MakeCachedEnsembleCommand(
 
 	TclFreeIntRep(objPtr);
 	ensembleCmd = ckalloc(sizeof(EnsembleCmdRep));
-	objPtr->internalRep.otherValuePtr = ensembleCmd;
+	objPtr->internalRep.twoPtrValue.ptr1 = ensembleCmd;
 	objPtr->typePtr = &tclEnsembleCmdType;
     }
 
@@ -2623,7 +2632,7 @@ static void
 FreeEnsembleCmdRep(
     Tcl_Obj *objPtr)
 {
-    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.otherValuePtr;
+    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1;
 
     Tcl_DecrRefCount(ensembleCmd->realPrefixObj);
     ckfree(ensembleCmd->fullSubcmdName);
@@ -2655,12 +2664,12 @@ DupEnsembleCmdRep(
     Tcl_Obj *objPtr,
     Tcl_Obj *copyPtr)
 {
-    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.otherValuePtr;
+    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1;
     EnsembleCmdRep *ensembleCopy = ckalloc(sizeof(EnsembleCmdRep));
     int length = strlen(ensembleCmd->fullSubcmdName);
 
     copyPtr->typePtr = &tclEnsembleCmdType;
-    copyPtr->internalRep.otherValuePtr = ensembleCopy;
+    copyPtr->internalRep.twoPtrValue.ptr1 = ensembleCopy;
     ensembleCopy->nsPtr = ensembleCmd->nsPtr;
     ensembleCopy->epoch = ensembleCmd->epoch;
     ensembleCopy->token = ensembleCmd->token;
@@ -2693,7 +2702,7 @@ static void
 StringOfEnsembleCmdRep(
     Tcl_Obj *objPtr)
 {
-    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.otherValuePtr;
+    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1;
     int length = strlen(ensembleCmd->fullSubcmdName);
 
     objPtr->length = length;
@@ -2731,27 +2740,35 @@ TclCompileEnsemble(
 				 * compiled. */
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
-    Tcl_Token *tokenPtr;
+    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
     Tcl_Obj *mapObj, *subcmdObj, *targetCmdObj, *listObj, **elems;
+    Tcl_Obj *replaced = Tcl_NewObj(), *replacement;
     Tcl_Command ensemble = (Tcl_Command) cmdPtr;
-    Tcl_Parse synthetic;
-    int len, result, flags = 0, i;
+    Command *oldCmdPtr = cmdPtr, *newCmdPtr;
+    int len, result, flags = 0, i, depth = 1, invokeAnyway = 0;
+    int ourResult = TCL_ERROR;
     unsigned numBytes;
     const char *word;
+    DefineLineInformation;
 
-    if (parsePtr->numWords < 2) {
-	return TCL_ERROR;
+    Tcl_IncrRefCount(replaced);
+    if (parsePtr->numWords < depth + 1) {
+	goto failed;
     }
-
-    tokenPtr = TokenAfter(parsePtr->tokenPtr);
     if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
 	/*
 	 * Too hard.
 	 */
 
-	return TCL_ERROR;
+	goto failed;
     }
 
+    /*
+     * This is where we return to if we are parsing multiple nested compiled
+     * ensembles. [info object] is such a beast.
+     */
+
+  checkNextWord:
     word = tokenPtr[1].start;
     numBytes = tokenPtr[1].size;
 
@@ -2768,7 +2785,7 @@ TclCompileEnsemble(
 	 * to proceed.
 	 */
 
-	return TCL_ERROR;
+	goto failed;
     }
 
     /*
@@ -2782,7 +2799,7 @@ TclCompileEnsemble(
 	 * Figuring out how to compile this has become too much. Bail out.
 	 */
 
-	return TCL_ERROR;
+	goto failed;
     }
 
     /*
@@ -2805,7 +2822,7 @@ TclCompileEnsemble(
 	Tcl_Obj *matchObj = NULL;
 
 	if (Tcl_ListObjGetElements(NULL, listObj, &len, &elems) != TCL_OK) {
-	    return TCL_ERROR;
+	    goto failed;
 	}
 	for (i=0 ; i<len ; i++) {
 	    str = Tcl_GetStringFromObj(elems[i], &sclen);
@@ -2816,8 +2833,9 @@ TclCompileEnsemble(
 
 		result = Tcl_DictObjGet(NULL, mapObj,elems[i], &targetCmdObj);
 		if (result != TCL_OK || targetCmdObj == NULL) {
-		    return TCL_ERROR;
+		    goto failed;
 		}
+		replacement = elems[i];
 		goto doneMapLookup;
 	    }
 
@@ -2833,18 +2851,19 @@ TclCompileEnsemble(
 	    if ((flags & TCL_ENSEMBLE_PREFIX)
 		    && strncmp(word, str, numBytes) == 0) {
 		if (matchObj != NULL) {
-		    return TCL_ERROR;
+		    goto failed;
 		}
 		matchObj = elems[i];
 	    }
 	}
 	if (matchObj == NULL) {
-	    return TCL_ERROR;
+	    goto failed;
 	}
 	result = Tcl_DictObjGet(NULL, mapObj, matchObj, &targetCmdObj);
 	if (result != TCL_OK || targetCmdObj == NULL) {
-	    return TCL_ERROR;
+	    goto failed;
 	}
+	replacement = matchObj;
     } else {
 	Tcl_DictSearch s;
 	int done, matched;
@@ -2856,14 +2875,15 @@ TclCompileEnsemble(
 
 	TclNewStringObj(subcmdObj, word, (int) numBytes);
 	result = Tcl_DictObjGet(NULL, mapObj, subcmdObj, &targetCmdObj);
-	TclDecrRefCount(subcmdObj);
 	if (result == TCL_OK && targetCmdObj != NULL) {
 	    /*
 	     * Got it. Skip the fiddling around with prefixes.
 	     */
 
+	    replacement = subcmdObj;
 	    goto doneMapLookup;
 	}
+	TclDecrRefCount(subcmdObj);
 
 	/*
 	 * We've not literally got a valid subcommand. But maybe we have a
@@ -2871,7 +2891,7 @@ TclCompileEnsemble(
 	 */
 
 	if (!(flags & TCL_ENSEMBLE_PREFIX)) {
-	    return TCL_ERROR;
+	    goto failed;
 	}
 
 	/*
@@ -2881,6 +2901,7 @@ TclCompileEnsemble(
 
 	Tcl_DictObjFirst(NULL, mapObj, &s, &subcmdObj, &tmpObj, &done);
 	matched = 0;
+	replacement = NULL;		/* Silence, fool compiler! */
 	while (!done) {
 	    if (strncmp(TclGetString(subcmdObj), word, numBytes) == 0) {
 		if (matched++) {
@@ -2891,6 +2912,7 @@ TclCompileEnsemble(
 
 		    break;
 		}
+		replacement = subcmdObj;
 		targetCmdObj = tmpObj;
 	    }
 	    Tcl_DictObjNext(&s, &subcmdObj, &tmpObj, &done);
@@ -2903,7 +2925,8 @@ TclCompileEnsemble(
 	 */
 
 	if (matched != 1) {
-	    return TCL_ERROR;
+	    invokeAnyway = 1;
+	    goto failed;
 	}
     }
 
@@ -2917,90 +2940,586 @@ TclCompileEnsemble(
      */
 
   doneMapLookup:
+    Tcl_ListObjAppendElement(NULL, replaced, replacement);
     if (Tcl_ListObjGetElements(NULL, targetCmdObj, &len, &elems) != TCL_OK) {
-	return TCL_ERROR;
-    }
-    if (len > 1 && Tcl_IsSafe(interp)) {
-	return TCL_ERROR;
+	goto failed;
+    } else if (len != 1) {
+	/*
+	 * Note that at this point we know we can't issue any special
+	 * instruction sequence as the mapping isn't one that we support at
+	 * the compiled level.
+	 */
+
+	goto cleanup;
     }
     targetCmdObj = elems[0];
 
+    oldCmdPtr = cmdPtr;
     Tcl_IncrRefCount(targetCmdObj);
-    cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, targetCmdObj);
+    newCmdPtr = (Command *) Tcl_GetCommandFromObj(interp, targetCmdObj);
     TclDecrRefCount(targetCmdObj);
-    if (cmdPtr == NULL || cmdPtr->compileProc == NULL
-	    || cmdPtr->nsPtr->flags & NS_SUPPRESS_COMPILATION
-	    || cmdPtr->flags * CMD_HAS_EXEC_TRACES
+    if (newCmdPtr == NULL || Tcl_IsSafe(interp)
+	    || newCmdPtr->nsPtr->flags & NS_SUPPRESS_COMPILATION
+	    || newCmdPtr->flags & CMD_HAS_EXEC_TRACES
 	    || ((Interp *)interp)->flags & DONT_COMPILE_CMDS_INLINE) {
 	/*
 	 * Maps to an undefined command or a command without a compiler.
 	 * Cannot compile.
 	 */
 
-	return TCL_ERROR;
+	goto cleanup;
+    }
+    cmdPtr = newCmdPtr;
+    depth++;
+
+    /*
+     * See whether we have a nested ensemble. If we do, we can go round the
+     * mulberry bush again, consuming the next word.
+     */
+
+    if (cmdPtr->compileProc == TclCompileEnsemble) {
+	tokenPtr = TokenAfter(tokenPtr);
+	if (parsePtr->numWords < depth + 1
+		|| tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+	    /*
+	     * Too hard because the user has done something unpleasant like
+	     * omitting the sub-ensemble's command name or used a non-constant
+	     * name for a sub-ensemble's command name; we respond by bailing
+	     * out completely (this is a rare case). [Bug 6d2f249a01]
+	     */
+
+	    goto cleanup;
+	}
+	ensemble = (Tcl_Command) cmdPtr;
+	goto checkNextWord;
     }
 
     /*
      * Now we've done the mapping process, can now actually try to compile.
-     * We do this by handing off to the subcommand's actual compiler. But to
-     * do that, we have to perform some trickery to rewrite the arguments.
+     * If there is a subcommand compiler and that successfully produces code,
+     * we'll use that. Otherwise, we fall back to generating opcodes to do the
+     * invoke at runtime.
      */
 
-    TclParseInit(interp, NULL, 0, &synthetic);
-    synthetic.numWords = parsePtr->numWords - 2 + len;
-    TclGrowParseTokenArray(&synthetic, 2*len);
-    synthetic.numTokens = 2*len;
+    invokeAnyway = 1;
+    if (TCL_OK == TclAttemptCompileProc(interp, parsePtr, depth, cmdPtr,
+	    envPtr)) {
+	ourResult = TCL_OK;
+	goto cleanup;
+    }
 
     /*
-     * Now we have the space to work in, install something rewritten. Note
-     * that we are here praying for all our might that none of these words are
-     * a script; the error detection code will crash if that happens and there
-     * is nothing we can do to avoid it!
+     * Throw out any line information generated by the failed compile attempt.
      */
 
-    for (i=0 ; i<len ; i++) {
-	int sclen;
-	const char *str = Tcl_GetStringFromObj(elems[i], &sclen);
+    while (mapPtr->nuloc - 1 > eclIndex) {
+        mapPtr->nuloc--;
+        ckfree(mapPtr->loc[mapPtr->nuloc].line);
+        mapPtr->loc[mapPtr->nuloc].line = NULL;
+    }
 
-	synthetic.tokenPtr[2*i].type = TCL_TOKEN_SIMPLE_WORD;
-	synthetic.tokenPtr[2*i].start = str;
-	synthetic.tokenPtr[2*i].size = sclen;
-	synthetic.tokenPtr[2*i].numComponents = 1;
+    /*
+     * Reset the index of next command.  Toss out any from failed nested
+     * partial compiles.
+     */
 
-	synthetic.tokenPtr[2*i+1].type = TCL_TOKEN_TEXT;
-	synthetic.tokenPtr[2*i+1].start = str;
-	synthetic.tokenPtr[2*i+1].size = sclen;
-	synthetic.tokenPtr[2*i+1].numComponents = 0;
+    envPtr->numCommands = mapPtr->nuloc;
+
+    /*
+     * Failed to do a full compile for some reason. Try to do a direct invoke
+     * instead of going through the ensemble lookup process again.
+     */
+
+  failed:
+    if (depth < 250) {
+	if (depth > 1) {
+	    if (!invokeAnyway) {
+		cmdPtr = oldCmdPtr;
+		depth--;
+	    }
+	}
+	/*
+	 * The length of the "replaced" list must be depth-1.  Trim back
+	 * any extra elements that might have been appended by failing
+	 * pathways above.
+	 */
+	(void) Tcl_ListObjReplace(NULL, replaced, depth-1, INT_MAX, 0, NULL);
+
+	/*
+	 * TODO: Reconsider whether we ought to call CompileToInvokedCommand()
+	 * when depth==1.  In that case we are choosing to emit the
+	 * INST_INVOKE_REPLACE bytecode when there is in fact no replacing
+	 * to be done.  It would be equally functional and presumably more
+	 * performant to fall through to cleanup below, return TCL_ERROR,
+	 * and let the compiler harness emit the INST_INVOKE_STK
+	 * implementation for us.
+	 */
+
+	CompileToInvokedCommand(interp, parsePtr, replaced, cmdPtr, envPtr);
+	ourResult = TCL_OK;
     }
 
     /*
-     * Copy over the real argument tokens.
+     * Release the memory we allocated. If we've got here, we've either done
+     * something useful or we're in a case that we can't compile at all and
+     * we're just giving up.
      */
 
-    for (i=len; i<synthetic.numWords; i++) {
-	int toCopy;
+  cleanup:
+    Tcl_DecrRefCount(replaced);
+    return ourResult;
+}
 
-	tokenPtr = TokenAfter(tokenPtr);
-	toCopy = tokenPtr->numComponents + 1;
-	TclGrowParseTokenArray(&synthetic, toCopy);
-	memcpy(synthetic.tokenPtr + synthetic.numTokens, tokenPtr,
-		sizeof(Tcl_Token) * toCopy);
-	synthetic.numTokens += toCopy;
+int
+TclAttemptCompileProc(
+    Tcl_Interp *interp,
+    Tcl_Parse *parsePtr,
+    int depth,
+    Command *cmdPtr,
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    int result, i;
+    Tcl_Token *saveTokenPtr = parsePtr->tokenPtr;
+    int savedStackDepth = envPtr->currStackDepth;
+    unsigned savedCodeNext = envPtr->codeNext - envPtr->codeStart;
+    DefineLineInformation;
+
+    if (cmdPtr->compileProc == NULL) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Advance parsePtr->tokenPtr so that it points at the last subcommand.
+     * This will be wrong, but it will not matter, and it will put the
+     * tokens for the arguments in the right place without the needed to
+     * allocate a synthetic Tcl_Parse struct, or copy tokens around.
+     */
+
+    for (i = 0; i < depth - 1; i++) {
+	parsePtr->tokenPtr = TokenAfter(parsePtr->tokenPtr);
     }
+    parsePtr->numWords -= (depth - 1);
+
+    /*
+     * Shift the line information arrays to account for different word
+     * index values.
+     */
+
+    mapPtr->loc[eclIndex].line += (depth - 1);
+    mapPtr->loc[eclIndex].next += (depth - 1);
 
     /*
      * Hand off compilation to the subcommand compiler. At last!
      */
 
-    result = cmdPtr->compileProc(interp, &synthetic, cmdPtr, envPtr);
+    result = cmdPtr->compileProc(interp, parsePtr, cmdPtr, envPtr);
+
+    /*
+     * Undo the shift. 
+     */
+
+    mapPtr->loc[eclIndex].line -= (depth - 1);
+    mapPtr->loc[eclIndex].next -= (depth - 1);
+
+    parsePtr->numWords += (depth - 1);
+    parsePtr->tokenPtr = saveTokenPtr;
 
     /*
-     * Clean up if necessary.
+     * If our target failed to compile, revert any data from failed partial
+     * compiles.  Note that envPtr->numCommands need not be checked because
+     * we avoid compiling subcommands that recursively call TclCompileScript().
      */
 
-    Tcl_FreeParse(&synthetic);
+    if (result != TCL_OK) {
+	envPtr->currStackDepth = savedStackDepth;
+	envPtr->codeNext = envPtr->codeStart + savedCodeNext;
+#ifdef TCL_COMPILE_DEBUG
+    } else {
+	/*
+	 * Confirm that the command compiler generated a single value on
+	 * the stack as its result. This is only done in debugging mode,
+	 * as it *should* be correct and normal users have no reasonable
+	 * way to fix it anyway.
+	 */
+
+	int diff = envPtr->currStackDepth - savedStackDepth;
+
+	if (diff != 1) {
+	    Tcl_Panic("bad stack adjustment when compiling"
+		    " %.*s (was %d instead of 1)", parsePtr->tokenPtr->size,
+		    parsePtr->tokenPtr->start, diff);
+	}
+#endif
+    }
+
     return result;
 }
+
+/*
+ * How to compile a subcommand to a _replacing_ invoke of its implementation
+ * command.
+ */
+
+static void
+CompileToInvokedCommand(
+    Tcl_Interp *interp,
+    Tcl_Parse *parsePtr,
+    Tcl_Obj *replacements,
+    Command *cmdPtr,
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokPtr;
+    Tcl_Obj *objPtr, **words;
+    char *bytes;
+    int length, i, numWords, cmdLit;
+    DefineLineInformation;
+
+    /*
+     * Push the words of the command. Take care; the command words may be
+     * scripts that have backslashes in them, and [info frame 0] can see the
+     * difference. Hence the call to TclContinuationsEnterDerived...
+     */
+
+    Tcl_ListObjGetElements(NULL, replacements, &numWords, &words);
+    for (i = 0, tokPtr = parsePtr->tokenPtr; i < parsePtr->numWords;
+	    i++, tokPtr = TokenAfter(tokPtr)) {
+	if (i > 0 && i < numWords+1) {
+	    bytes = Tcl_GetStringFromObj(words[i-1], &length);
+	    PushLiteral(envPtr, bytes, length);
+	    continue;
+	}
+
+	SetLineInformation(i);
+	if (tokPtr->type == TCL_TOKEN_SIMPLE_WORD) {
+	    int literal = TclRegisterNewLiteral(envPtr,
+		    tokPtr[1].start, tokPtr[1].size);
+
+	    if (envPtr->clNext) {
+		TclContinuationsEnterDerived(
+			TclFetchLiteral(envPtr, literal),
+			tokPtr[1].start - envPtr->source,
+			envPtr->clNext);
+	    }
+	    TclEmitPush(literal, envPtr);
+	} else {
+	    CompileTokens(envPtr, tokPtr, interp);
+	}
+    }
+
+    /*
+     * Push the name of the command we're actually dispatching to as part of
+     * the implementation.
+     */
+
+    objPtr = Tcl_NewObj();
+    Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr);
+    bytes = Tcl_GetStringFromObj(objPtr, &length);
+    cmdLit = TclRegisterNewCmdLiteral(envPtr, bytes, length);
+    TclSetCmdNameObj(interp, TclFetchLiteral(envPtr, cmdLit), cmdPtr);
+    TclEmitPush(cmdLit, envPtr);
+    TclDecrRefCount(objPtr);
+
+    /*
+     * Do the replacing dispatch.
+     */
+
+    TclEmitInvoke(envPtr, INST_INVOKE_REPLACE, parsePtr->numWords,numWords+1);
+}
+
+/*
+ * Helpers that do issuing of instructions for commands that "don't have
+ * compilers" (well, they do; these). They all work by just generating base
+ * code to invoke the command; they're intended for ensemble subcommands so
+ * that the costs of INST_INVOKE_REPLACE can be avoided where we can work out
+ * that they're not needed.
+ *
+ * Note that these are NOT suitable for commands where there's an argument
+ * that is a script, as an [info level] or [info frame] in the inner context
+ * can see the difference.
+ */
+
+static int
+CompileBasicNArgCommand(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Obj *objPtr = Tcl_NewObj();
+
+    Tcl_IncrRefCount(objPtr);
+    Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr);
+    TclCompileInvocation(interp, parsePtr->tokenPtr, objPtr,
+	    parsePtr->numWords, envPtr);
+    Tcl_DecrRefCount(objPtr);
+    return TCL_OK;
+}
+
+int
+TclCompileBasic0ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords != 1) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasic1ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasic2ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasic3ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords != 4) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasic0Or1ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords != 1 && parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasic1Or2ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords != 2 && parsePtr->numWords != 3) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasic2Or3ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords != 3 && parsePtr->numWords != 4) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasic0To2ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords < 1 || parsePtr->numWords > 3) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasic1To3ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords < 2 || parsePtr->numWords > 4) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasicMin0ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords < 1) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasicMin1ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords < 2) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
+
+int
+TclCompileBasicMin2ArgCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    Command *cmdPtr,		/* Points to defintion of command being
+				 * compiled. */
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    /*
+     * Verify that the number of arguments is correct; that's the only case
+     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
+     * which is the only code that sees the shenanigans of ensemble dispatch.
+     */
+
+    if (parsePtr->numWords < 3) {
+	return TCL_ERROR;
+    }
+
+    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
+}
 
 /*
  * Local Variables:
diff --git a/generic/tclEnv.c b/generic/tclEnv.c
index b5ae6ea..2cb240d 100644
--- a/generic/tclEnv.c
+++ b/generic/tclEnv.c
@@ -43,11 +43,6 @@ static char *		EnvTraceProc(ClientData clientData, Tcl_Interp *interp,
 static void		ReplaceString(const char *oldStr, char *newStr);
 MODULE_SCOPE void	TclSetEnv(const char *name, const char *value);
 MODULE_SCOPE void	TclUnsetEnv(const char *name);
-
-#if defined(__CYGWIN__)
-    static void TclCygwinPutenv(char *string);
-#   define putenv TclCygwinPutenv
-#endif
 
 /*
  *----------------------------------------------------------------------
@@ -76,36 +71,56 @@ TclSetupEnv(
     Tcl_Interp *interp)		/* Interpreter whose "env" array is to be
 				 * managed. */
 {
+    Var *varPtr, *arrayPtr;
+    Tcl_Obj *varNamePtr;
     Tcl_DString envString;
-    char *p1, *p2;
-    int i;
+    Tcl_HashTable namesHash;
+    Tcl_HashEntry *hPtr;
+    Tcl_HashSearch search;
 
     /*
      * Synchronize the values in the environ array with the contents of the
      * Tcl "env" variable. To do this:
-     *    1) Remove the trace that fires when the "env" var is unset.
-     *    2) Unset the "env" variable.
-     *    3) If there are no environ variables, create an empty "env" array.
-     *	     Otherwise populate the array with current values.
-     *    4) Add a trace that synchronizes the "env" array.
+     *    1) Remove the trace that fires when the "env" var is updated.
+     *    2) Find the existing contents of the "env", storing in a hash table.
+     *    3) Create/update elements for each environ variable, removing
+     *	     elements from the hash table as we go.
+     *    4) Remove the elements for each remaining entry in the hash table,
+     *	     which must have existed before yet have no analog in the environ
+     *	     variable.
+     *    5) Add a trace that synchronizes the "env" array.
      */
 
     Tcl_UntraceVar2(interp, "env", NULL,
 	    TCL_GLOBAL_ONLY | TCL_TRACE_WRITES | TCL_TRACE_UNSETS |
 	    TCL_TRACE_READS | TCL_TRACE_ARRAY, EnvTraceProc, NULL);
 
-    Tcl_UnsetVar2(interp, "env", NULL, TCL_GLOBAL_ONLY);
+    /*
+     * Find out what elements are currently in the global env array.
+     */
 
-    if (environ[0] == NULL) {
-	Tcl_Obj *varNamePtr;
+    TclNewLiteralStringObj(varNamePtr, "env");
+    Tcl_IncrRefCount(varNamePtr);
+    Tcl_InitObjHashTable(&namesHash);
+    varPtr = TclObjLookupVarEx(interp, varNamePtr, NULL, TCL_GLOBAL_ONLY,
+	    /*msg*/ 0, /*createPart1*/ 0, /*createPart2*/ 0, &arrayPtr);
+    TclFindArrayPtrElements(varPtr, &namesHash);
+
+    /*
+     * Go through the environment array and transfer its values into Tcl. At
+     * the same time, remove those elements we add/update from the hash table
+     * of existing elements, so that after this part processes, that table
+     * will hold just the parts to remove.
+     */
+
+    if (environ[0] != NULL) {
+	int i;
 
-	TclNewLiteralStringObj(varNamePtr, "env");
-	Tcl_IncrRefCount(varNamePtr);
-	TclArraySet(interp, varNamePtr, NULL);
-	Tcl_DecrRefCount(varNamePtr);
-    } else {
 	Tcl_MutexLock(&envMutex);
 	for (i = 0; environ[i] != NULL; i++) {
+	    Tcl_Obj *obj1, *obj2;
+	    char *p1, *p2;
+
 	    p1 = Tcl_ExternalToUtfDString(NULL, environ[i], -1, &envString);
 	    p2 = strchr(p1, '=');
 	    if (p2 == NULL) {
@@ -119,12 +134,41 @@ TclSetupEnv(
 	    }
 	    p2++;
 	    p2[-1] = '\0';
-	    Tcl_SetVar2(interp, "env", p1, p2, TCL_GLOBAL_ONLY);
+	    obj1 = Tcl_NewStringObj(p1, -1);
+	    obj2 = Tcl_NewStringObj(p2, -1);
 	    Tcl_DStringFree(&envString);
+
+	    Tcl_IncrRefCount(obj1);
+	    Tcl_IncrRefCount(obj2);
+	    Tcl_ObjSetVar2(interp, varNamePtr, obj1, obj2, TCL_GLOBAL_ONLY);
+	    hPtr = Tcl_FindHashEntry(&namesHash, obj1);
+	    if (hPtr != NULL) {
+		Tcl_DeleteHashEntry(hPtr);
+	    }
+	    Tcl_DecrRefCount(obj1);
+	    Tcl_DecrRefCount(obj2);
 	}
 	Tcl_MutexUnlock(&envMutex);
     }
 
+    /*
+     * Delete those elements that existed in the array but which had no
+     * counterparts in the environment array.
+     */
+
+    for (hPtr=Tcl_FirstHashEntry(&namesHash, &search); hPtr!=NULL;
+	    hPtr=Tcl_NextHashEntry(&search)) {
+	Tcl_Obj *elemName = Tcl_GetHashValue(hPtr);
+
+	TclObjUnsetVar2(interp, varNamePtr, elemName, TCL_GLOBAL_ONLY);
+    }
+    Tcl_DeleteHashTable(&namesHash);
+    Tcl_DecrRefCount(varNamePtr);
+
+    /*
+     * Re-establish the trace.
+     */
+
     Tcl_TraceVar2(interp, "env", NULL,
 	    TCL_GLOBAL_ONLY | TCL_TRACE_WRITES | TCL_TRACE_UNSETS |
 	    TCL_TRACE_READS | TCL_TRACE_ARRAY, EnvTraceProc, NULL);
@@ -395,7 +439,7 @@ TclUnsetEnv(
      * that no = should be included, and Windows requires it.
      */
 
-#if defined(__WIN32__) || defined(__CYGWIN__)
+#if defined(_WIN32)
     string = ckalloc(length + 2);
     memcpy(string, name, (size_t) length);
     string[length] = '=';
@@ -404,7 +448,7 @@ TclUnsetEnv(
     string = ckalloc(length + 1);
     memcpy(string, name, (size_t) length);
     string[length] = '\0';
-#endif /* WIN32 */
+#endif /* _WIN32 */
 
     Tcl_UtfToExternalDString(NULL, string, -1, &envString);
     string = ckrealloc(string, Tcl_DStringLength(&envString) + 1);
@@ -565,7 +609,8 @@ EnvTraceProc(
 	const char *value = TclGetEnv(name2, &valueString);
 
 	if (value == NULL) {
-	    return (char *) "no such variable";
+	    Tcl_UnsetVar2(interp, name1, name2, 0);
+	    return NULL;
 	}
 	Tcl_SetVar2(interp, name1, name2, value, 0);
 	Tcl_DStringFree(&valueString);
@@ -690,98 +735,6 @@ TclFinalizeEnvironment(void)
     }
 }
 
-#if defined(__CYGWIN__)
-
-/*
- * When using cygwin, when an environment variable changes, we need to synch
- * with both the cygwin environment (in case the application C code calls
- * fork) and the Windows environment (in case the application TCL code calls
- * exec, which calls the Windows CreateProcess function).
- */
-DLLIMPORT extern void __stdcall SetEnvironmentVariableA(const char*, const char *);
-
-static void
-TclCygwinPutenv(
-    char *str)
-{
-    char *name, *value;
-
-    /*
-     * Get the name and value, so that we can change the environment variable
-     * for Windows.
-     */
-
-    name = alloca(strlen(str) + 1);
-    strcpy(name, str);
-    for (value=name ; *value!='=' && *value!='\0' ; ++value) {
-	/* Empty body */
-    }
-    if (*value == '\0') {
-	/* Can't happen. */
-	return;
-    }
-    *(value++) = '\0';
-    if (*value == '\0') {
-	value = NULL;
-    }
-
-    /*
-     * Set the cygwin environment variable.
-     */
-
-#undef putenv
-    if (value == NULL) {
-	unsetenv(name);
-    } else {
-	putenv(str);
-    }
-
-    /*
-     * Before changing the environment variable in Windows, if this is PATH,
-     * we need to convert the value back to a Windows style path.
-     *
-     * FIXME: The calling program may know it is running under windows, and
-     * may have set the path to a Windows path, or, worse, appended or
-     * prepended a Windows path to PATH.
-     */
-
-    if (strcmp(name, "PATH") != 0) {
-	/*
-	 * If this is Path, eliminate any PATH variable, to prevent any
-	 * confusion.
-	 */
-
-	if (strcmp(name, "Path") == 0) {
-	    SetEnvironmentVariableA("PATH", NULL);
-	    unsetenv("PATH");
-	}
-
-	SetEnvironmentVariableA(name, value);
-    } else {
-	char *buf;
-
-	/*
-	 * Eliminate any Path variable, to prevent any confusion.
-	 */
-
-	SetEnvironmentVariableA("Path", NULL);
-	unsetenv("Path");
-
-	if (value == NULL) {
-	    buf = NULL;
-	} else {
-	    int size;
-
-	    size = cygwin_conv_path_list(0, value, NULL, 0);
-	    buf = alloca(size + 1);
-	    cygwin_conv_path_list(0, value, buf, size);
-	}
-
-	SetEnvironmentVariableA(name, buf);
-    }
-}
-#endif /* __CYGWIN__ */
-
 /*
  * Local Variables:
  * mode: c
diff --git a/generic/tclEvent.c b/generic/tclEvent.c
index 0b585b6..6ca22a6 100644
--- a/generic/tclEvent.c
+++ b/generic/tclEvent.c
@@ -119,6 +119,7 @@ static char *		VwaitVarProc(ClientData clientData,
 			    Tcl_Interp *interp, const char *name1,
 			    const char *name2, int flags);
 static void		InvokeExitHandlers(void);
+static void		FinalizeThread(int quick);
 
 /*
  *----------------------------------------------------------------------
@@ -983,7 +984,7 @@ Tcl_Exit(
 	     * Tcl_Channels that may have data enqueued.
 	     */
 	    
-	    Tcl_FinalizeThread();
+	    FinalizeThread(/* quick */ 1);
 	}
 	TclpExit(status);
 	Tcl_Panic("OS exit failed!");
@@ -1030,14 +1031,8 @@ TclInitSubsystems(void)
 
 	TclpInitLock();
 	if (subsystemsInitialized == 0) {
-	    /*
-	     * Have to set this bit here to avoid deadlock with the routines
-	     * below us that call into TclInitSubsystems.
-	     */
-
-	    subsystemsInitialized = 1;
 
-	    /*
+		/*
 	     * Initialize locks used by the memory allocators before anything
 	     * interesting happens so we can use the allocators in the
 	     * implementation of self-initializing locks.
@@ -1061,6 +1056,7 @@ TclInitSubsystems(void)
 	    TclInitEncodingSubsystem();	/* Process wide encoding init. */
 	    TclpSetInterfaces();
 	    TclInitNamespaceSubsystem();/* Register ns obj type (mutexed). */
+	    subsystemsInitialized = 1;
 	}
 	TclpInitUnlock();
     }
@@ -1176,8 +1172,6 @@ Tcl_Finalize(void)
 
     TclFinalizeEncodingSubsystem();
 
-    Tcl_SetPanicProc(NULL);
-
     /*
      * Repeat finalization of the thread local storage once more. Although
      * this step is already done by the Tcl_FinalizeThread call above, series
@@ -1190,7 +1184,7 @@ Tcl_Finalize(void)
      * This fixes the Tcl Bug #990552.
      */
 
-    TclFinalizeThreadData();
+    TclFinalizeThreadData(/* quick */ 0);
 
     /*
      * Now we can free constants for conversions to/from double.
@@ -1276,6 +1270,13 @@ Tcl_Finalize(void)
 void
 Tcl_FinalizeThread(void)
 {
+    FinalizeThread(/* quick */ 0);
+}
+
+void
+FinalizeThread(
+    int quick)
+{
     ExitHandler *exitPtr;
     ThreadSpecificData *tsdPtr;
 
@@ -1316,8 +1317,7 @@ Tcl_FinalizeThread(void)
      *
      * Fix [Bug #571002]
      */
-
-    TclFinalizeThreadData();
+    TclFinalizeThreadData(quick);
 }
 
 /*
@@ -1402,7 +1402,7 @@ Tcl_VwaitObjCmd(
 	return TCL_ERROR;
     }
     nameString = Tcl_GetString(objv[1]);
-    if (Tcl_TraceVar(interp, nameString,
+    if (Tcl_TraceVar2(interp, nameString, NULL,
 	    TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
 	    VwaitVarProc, &done) != TCL_OK) {
 	return TCL_ERROR;
@@ -1420,7 +1420,7 @@ Tcl_VwaitObjCmd(
 	    break;
 	}
     }
-    Tcl_UntraceVar(interp, nameString,
+    Tcl_UntraceVar2(interp, nameString, NULL,
 	    TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
 	    VwaitVarProc, &done);
 
diff --git a/generic/tclExecute.c b/generic/tclExecute.c
index 3c0b472..43c2b08 100644
--- a/generic/tclExecute.c
+++ b/generic/tclExecute.c
@@ -17,6 +17,7 @@
 
 #include "tclInt.h"
 #include "tclCompile.h"
+#include "tclOOInt.h"
 #include "tommath.h"
 #include <math.h>
 
@@ -80,9 +81,7 @@ int tclTraceExec = 0;
 
 static const char *const operatorStrings[] = {
     "||", "&&", "|", "^", "&", "==", "!=", "<", ">", "<=", ">=", "<<", ">>",
-    "+", "-", "*", "/", "%", "+", "-", "~", "!",
-    "BUILTIN FUNCTION", "FUNCTION",
-    "", "", "", "", "", "", "", "", "eq", "ne"
+    "+", "-", "*", "/", "%", "+", "-", "~", "!"
 };
 
 /*
@@ -173,34 +172,32 @@ static BuiltinFunc const tclBuiltinFuncTable[] = {
 typedef struct TEBCdata {
     ByteCode *codePtr;		/* Constant until the BC returns */
 				/* -----------------------------------------*/
-    const unsigned char *pc;	/* These fields are used on return TO this */
-    ptrdiff_t *catchTop;	/* this level: they record the state when a */
-    int cleanup;		/* new codePtr was received for NR */
-    Tcl_Obj *auxObjList;	/* execution. */
-    int checkInterp;
-    CmdFrame cmdFrame;
+    ptrdiff_t *catchTop;	/* These fields are used on return TO this */
+    Tcl_Obj *auxObjList;	/* this level: they record the state when a */
+    CmdFrame cmdFrame;		/* new codePtr was received for NR */
+                                /* execution. */
     void *stack[1];		/* Start of the actual combined catch and obj
 				 * stacks; the struct will be expanded as
 				 * necessary */
 } TEBCdata;
 
 #define TEBC_YIELD() \
-    do {								\
-	esPtr->tosPtr = tosPtr;						\
-	TD->pc = pc;							\
-	TD->cleanup = cleanup;						\
-	TclNRAddCallback(interp, TEBCresume, TD, INT2PTR(1), NULL, NULL); \
+    do {						\
+	esPtr->tosPtr = tosPtr;				\
+	TclNRAddCallback(interp, TEBCresume,		\
+		TD, pc, INT2PTR(cleanup), NULL);	\
     } while (0)
 
 #define TEBC_DATA_DIG() \
     do {					\
-	pc = TD->pc;				\
-	cleanup = TD->cleanup;			\
 	tosPtr = esPtr->tosPtr;			\
     } while (0)
 
 #define PUSH_TAUX_OBJ(objPtr) \
     do {							\
+	if (auxObjList) {					\
+	    objPtr->length += auxObjList->length;		\
+	}							\
 	objPtr->internalRep.ptrAndLongRep.ptr = auxObjList;	\
 	auxObjList = objPtr;					\
     } while (0)
@@ -250,13 +247,27 @@ VarHashCreateVar(
  *	otherwise, push objResultPtr. If (result < 0), objResultPtr already
  *	has the correct reference count.
  *
- * We use the new compile-time assertions to cheack that nCleanup is constant
+ * We use the new compile-time assertions to check that nCleanup is constant
  * and within range.
  */
 
-#define NEXT_INST_F(pcAdjustment, nCleanup, resultHandling) \
+/* Verify the stack depth, only when no expansion is in progress */
+
+#ifdef TCL_COMPILE_DEBUG
+#define CHECK_STACK()							\
+    do {								\
+	ValidatePcAndStackTop(codePtr, pc, CURR_DEPTH,			\
+		/*checkStack*/ !(starting || auxObjList));		\
+	starting = 0;							\
+    } while (0)
+#else
+#define CHECK_STACK()
+#endif
+
+#define NEXT_INST_F(pcAdjustment, nCleanup, resultHandling)	\
     do {							\
 	TCL_CT_ASSERT((nCleanup >= 0) && (nCleanup <= 2));	\
+	CHECK_STACK();						\
 	if (nCleanup == 0) {					\
 	    if (resultHandling != 0) {				\
 		if ((resultHandling) > 0) {			\
@@ -275,17 +286,20 @@ VarHashCreateVar(
 	    switch (nCleanup) {					\
 	    case 1: goto cleanup1_pushObjResultPtr;		\
 	    case 2: goto cleanup2_pushObjResultPtr;		\
+	    case 0: break;					\
 	    }							\
 	} else {						\
 	    pc += (pcAdjustment);				\
 	    switch (nCleanup) {					\
 	    case 1: goto cleanup1;				\
 	    case 2: goto cleanup2;				\
+	    case 0: break;					\
 	    }							\
 	}							\
     } while (0)
 
-#define NEXT_INST_V(pcAdjustment, nCleanup, resultHandling) \
+#define NEXT_INST_V(pcAdjustment, nCleanup, resultHandling)	\
+    CHECK_STACK();						\
     do {							\
 	pc += (pcAdjustment);					\
 	cleanup = (nCleanup);					\
@@ -299,6 +313,70 @@ VarHashCreateVar(
 	}							\
     } while (0)
 
+#ifndef TCL_COMPILE_DEBUG
+#define JUMP_PEEPHOLE_F(condition, pcAdjustment, cleanup) \
+    do {								\
+	pc += (pcAdjustment);						\
+	switch (*pc) {							\
+	case INST_JUMP_FALSE1:						\
+	    NEXT_INST_F(((condition)? 2 : TclGetInt1AtPtr(pc+1)), (cleanup), 0); \
+	case INST_JUMP_TRUE1:						\
+	    NEXT_INST_F(((condition)? TclGetInt1AtPtr(pc+1) : 2), (cleanup), 0); \
+	case INST_JUMP_FALSE4:						\
+	    NEXT_INST_F(((condition)? 5 : TclGetInt4AtPtr(pc+1)), (cleanup), 0); \
+	case INST_JUMP_TRUE4:						\
+	    NEXT_INST_F(((condition)? TclGetInt4AtPtr(pc+1) : 5), (cleanup), 0); \
+	default:							\
+	    if ((condition) < 0) {					\
+		TclNewIntObj(objResultPtr, -1);				\
+	    } else {							\
+		objResultPtr = TCONST((condition) > 0);			\
+	    }								\
+	    NEXT_INST_F(0, (cleanup), 1);				\
+	}								\
+    } while (0)
+#define JUMP_PEEPHOLE_V(condition, pcAdjustment, cleanup) \
+    do {								\
+	pc += (pcAdjustment);						\
+	switch (*pc) {							\
+	case INST_JUMP_FALSE1:						\
+	    NEXT_INST_V(((condition)? 2 : TclGetInt1AtPtr(pc+1)), (cleanup), 0); \
+	case INST_JUMP_TRUE1:						\
+	    NEXT_INST_V(((condition)? TclGetInt1AtPtr(pc+1) : 2), (cleanup), 0); \
+	case INST_JUMP_FALSE4:						\
+	    NEXT_INST_V(((condition)? 5 : TclGetInt4AtPtr(pc+1)), (cleanup), 0); \
+	case INST_JUMP_TRUE4:						\
+	    NEXT_INST_V(((condition)? TclGetInt4AtPtr(pc+1) : 5), (cleanup), 0); \
+	default:							\
+	    if ((condition) < 0) {					\
+		TclNewIntObj(objResultPtr, -1);				\
+	    } else {							\
+		objResultPtr = TCONST((condition) > 0);			\
+	    }								\
+	    NEXT_INST_V(0, (cleanup), 1);				\
+	}								\
+    } while (0)
+#else /* TCL_COMPILE_DEBUG */
+#define JUMP_PEEPHOLE_F(condition, pcAdjustment, cleanup) \
+    do{									\
+	if ((condition) < 0) {						\
+	    TclNewIntObj(objResultPtr, -1);				\
+	} else {							\
+	    objResultPtr = TCONST((condition) > 0);			\
+	}								\
+	NEXT_INST_F((pcAdjustment), (cleanup), 1);			\
+    } while (0)
+#define JUMP_PEEPHOLE_V(condition, pcAdjustment, cleanup) \
+    do{									\
+	if ((condition) < 0) {						\
+	    TclNewIntObj(objResultPtr, -1);				\
+	} else {							\
+	    objResultPtr = TCONST((condition) > 0);			\
+	}								\
+	NEXT_INST_V((pcAdjustment), (cleanup), 1);			\
+    } while (0)
+#endif
+
 /*
  * Macros used to cache often-referenced Tcl evaluation stack information
  * in local variables. Note that a DECACHE_STACK_INFO()-CACHE_STACK_INFO()
@@ -341,6 +419,8 @@ VarHashCreateVar(
 
 #define CURR_DEPTH	((ptrdiff_t) (tosPtr - initTosPtr))
 
+#define STACK_BASE(esPtr) ((esPtr)->stackWords - 1)
+
 /*
  * Macros used to trace instruction execution. The macros TRACE,
  * TRACE_WITH_OBJ, and O2S are only used inside TclNRExecuteByteCode. O2S is
@@ -362,6 +442,8 @@ VarHashCreateVar(
 	printf a;			\
 	break;				\
     }
+#   define TRACE_ERROR(interp) \
+    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
 #   define TRACE_WITH_OBJ(a, objPtr) \
     while (traceInstructions) {					\
 	fprintf(stdout, "%2d: %2d (%u) %s ", iPtr->numLevels,	\
@@ -378,6 +460,7 @@ VarHashCreateVar(
 #else /* !TCL_COMPILE_DEBUG */
 #   define TRACE(a)
 #   define TRACE_APPEND(a)
+#   define TRACE_ERROR(interp)
 #   define TRACE_WITH_OBJ(a, objPtr)
 #   define O2S(objPtr)
 #endif /* TCL_COMPILE_DEBUG */
@@ -418,7 +501,7 @@ VarHashCreateVar(
  *			ClientData *ptrPtr, int *tPtr);
  */
 
-#ifdef NO_WIDE_TYPE
+#ifdef TCL_WIDE_INT_IS_LONG
 #define GetNumberFromObj(interp, objPtr, ptrPtr, tPtr) \
     (((objPtr)->typePtr == &tclIntType)					\
 	?	(*(tPtr) = TCL_NUMBER_LONG,				\
@@ -432,9 +515,9 @@ VarHashCreateVar(
 		    (&((objPtr)->internalRep.doubleValue)), TCL_OK) :	\
     ((((objPtr)->typePtr == NULL) && ((objPtr)->bytes == NULL)) ||	\
     (((objPtr)->bytes != NULL) && ((objPtr)->length == 0)))		\
-	? TCL_ERROR :							\
+	? (*(tPtr) = TCL_NUMBER_LONG),TCL_ERROR :			\
     TclGetNumberFromObj((interp), (objPtr), (ptrPtr), (tPtr)))
-#else /* !NO_WIDE_TYPE */
+#else /* !TCL_WIDE_INT_IS_LONG */
 #define GetNumberFromObj(interp, objPtr, ptrPtr, tPtr) \
     (((objPtr)->typePtr == &tclIntType)					\
 	?	(*(tPtr) = TCL_NUMBER_LONG,				\
@@ -452,9 +535,9 @@ VarHashCreateVar(
 		    (&((objPtr)->internalRep.doubleValue)), TCL_OK) :	\
     ((((objPtr)->typePtr == NULL) && ((objPtr)->bytes == NULL)) ||	\
     (((objPtr)->bytes != NULL) && ((objPtr)->length == 0)))		\
-	? TCL_ERROR :							\
+	? (*(tPtr) = TCL_NUMBER_LONG),TCL_ERROR :			\
     TclGetNumberFromObj((interp), (objPtr), (ptrPtr), (tPtr)))
-#endif /* NO_WIDE_TYPE */
+#endif /* TCL_WIDE_INT_IS_LONG */
 
 /*
  * Macro used in this file to save a function call for common uses of
@@ -471,30 +554,6 @@ VarHashCreateVar(
 	: Tcl_GetBooleanFromObj((interp), (objPtr), (boolPtr)))
 
 /*
- * Macro used in this file to save a function call for common uses of
- * Tcl_GetWideIntFromObj(). The ANSI C "prototype" is:
- *
- * MODULE_SCOPE int TclGetWideIntFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
- *			Tcl_WideInt *wideIntPtr);
- */
-
-#ifdef NO_WIDE_TYPE
-#define TclGetWideIntFromObj(interp, objPtr, wideIntPtr) \
-    (((objPtr)->typePtr == &tclIntType)					\
-	? (*(wideIntPtr) = (Tcl_WideInt)				\
-		((objPtr)->internalRep.longValue), TCL_OK) :		\
-	Tcl_GetWideIntFromObj((interp), (objPtr), (wideIntPtr)))
-#else /* !NO_WIDE_TYPE */
-#define TclGetWideIntFromObj(interp, objPtr, wideIntPtr)		\
-    (((objPtr)->typePtr == &tclWideIntType)				\
-	? (*(wideIntPtr) = (objPtr)->internalRep.wideValue, TCL_OK) :	\
-    ((objPtr)->typePtr == &tclIntType)					\
-	? (*(wideIntPtr) = (Tcl_WideInt)				\
-		((objPtr)->internalRep.longValue), TCL_OK) :		\
-	Tcl_GetWideIntFromObj((interp), (objPtr), (wideIntPtr)))
-#endif /* NO_WIDE_TYPE */
-
-/*
  * Macro used to make the check for type overflow more mnemonic. This works by
  * comparing sign bits; the rest of the word is irrelevant. The ANSI C
  * "prototype" (where inttype_t is any integer type) is:
@@ -684,7 +743,7 @@ static void		PrintByteCodeInfo(ByteCode *codePtr);
 static const char *	StringForResultCode(int result);
 static void		ValidatePcAndStackTop(ByteCode *codePtr,
 			    const unsigned char *pc, int stackTop,
-			    int stackLowerBound, int checkStack);
+			    int checkStack);
 #endif /* TCL_COMPILE_DEBUG */
 static ByteCode *	CompileExprObj(Tcl_Interp *interp, Tcl_Obj *objPtr);
 static void		DeleteExecStack(ExecStack *esPtr);
@@ -702,20 +761,21 @@ static ExceptionRange *	GetExceptRangeForPc(const unsigned char *pc,
 			    int catchOnly, ByteCode *codePtr);
 static const char *	GetSrcInfoForPc(const unsigned char *pc,
 			    ByteCode *codePtr, int *lengthPtr,
-			    const unsigned char **pcBeg);
+			    const unsigned char **pcBeg, int *cmdIdxPtr);
 static Tcl_Obj **	GrowEvaluationStack(ExecEnv *eePtr, int growth,
 			    int move);
 static void		IllegalExprOperandType(Tcl_Interp *interp,
 			    const unsigned char *pc, Tcl_Obj *opndPtr);
 static void		InitByteCodeExecution(Tcl_Interp *interp);
-static inline int	OFFSET(void *ptr);
+static inline int	wordSkip(void *ptr);
 static void		ReleaseDictIterator(Tcl_Obj *objPtr);
 /* Useful elsewhere, make available in tclInt.h or stubs? */
 static Tcl_Obj **	StackAllocWords(Tcl_Interp *interp, int numWords);
 static Tcl_Obj **	StackReallocWords(Tcl_Interp *interp, int numWords);
 static Tcl_NRPostProc	CopyCallback;
 static Tcl_NRPostProc	ExprObjCallback;
-
+static Tcl_NRPostProc	FinalizeOONext;
+static Tcl_NRPostProc	FinalizeOONextFilter;
 static Tcl_NRPostProc   TEBCresume;
 
 /*
@@ -866,7 +926,7 @@ TclCreateExecEnv(
     esPtr->nextPtr = NULL;
     esPtr->markerPtr = NULL;
     esPtr->endPtr = &esPtr->stackWords[size-1];
-    esPtr->tosPtr = &esPtr->stackWords[-1];
+    esPtr->tosPtr = STACK_BASE(esPtr);
 
     Tcl_MutexLock(&execMutex);
     if (!execInitialized) {
@@ -985,13 +1045,13 @@ TclFinalizeExecution(void)
     (TCL_ALLOCALIGN/sizeof(Tcl_Obj *))
 
 /*
- * OFFSET computes how many words have to be skipped until the next aligned
+ * wordSkip computes how many words have to be skipped until the next aligned
  * word. Note that we are only interested in the low order bits of ptr, so
  * that any possible information loss in PTR2INT is of no consequence.
  */
 
 static inline int
-OFFSET(
+wordSkip(
     void *ptr)
 {
     int mask = TCL_ALLOCALIGN-1;
@@ -1004,7 +1064,7 @@ OFFSET(
  */
 
 #define MEMSTART(markerPtr) \
-    ((markerPtr) + OFFSET(markerPtr))
+    ((markerPtr) + wordSkip(markerPtr))
 
 /*
  *----------------------------------------------------------------------
@@ -1047,8 +1107,9 @@ GrowEvaluationStack(
 	    return MEMSTART(markerPtr);
 	}
     } else {
+#ifndef PURIFY
 	Tcl_Obj **tmpMarkerPtr = esPtr->tosPtr + 1;
-	int offset = OFFSET(tmpMarkerPtr);
+	int offset = wordSkip(tmpMarkerPtr);
 
 	if (needed + offset < 0) {
 	    /*
@@ -1063,6 +1124,7 @@ GrowEvaluationStack(
 	    *esPtr->markerPtr = (Tcl_Obj *) markerPtr;
 	    return memStart;
 	}
+#endif
     }
 
     /*
@@ -1076,6 +1138,7 @@ GrowEvaluationStack(
     }
     needed = growth + moveWords + WALLOCALIGN;
 
+    
     /*
      * Check if there is enough room in the next stack (if there is one, it
      * should be both empty and the last one!)
@@ -1084,8 +1147,8 @@ GrowEvaluationStack(
     if (esPtr->nextPtr) {
 	oldPtr = esPtr;
 	esPtr = oldPtr->nextPtr;
-	currElems = esPtr->endPtr - &esPtr->stackWords[-1];
-	if (esPtr->markerPtr || (esPtr->tosPtr != &esPtr->stackWords[-1])) {
+	currElems = esPtr->endPtr - STACK_BASE(esPtr);
+	if (esPtr->markerPtr || (esPtr->tosPtr != STACK_BASE(esPtr))) {
 	    Tcl_Panic("STACK: Stack after current is in use");
 	}
 	if (esPtr->nextPtr) {
@@ -1097,7 +1160,7 @@ GrowEvaluationStack(
 	DeleteExecStack(esPtr);
 	esPtr = oldPtr;
     } else {
-	currElems = esPtr->endPtr - &esPtr->stackWords[-1];
+	currElems = esPtr->endPtr - STACK_BASE(esPtr);
     }
 
     /*
@@ -1105,10 +1168,15 @@ GrowEvaluationStack(
      * including the elements to be copied over and the new marker.
      */
 
+#ifndef PURIFY
     newElems = 2*currElems;
     while (needed > newElems) {
 	newElems *= 2;
     }
+#else
+    newElems = needed;
+#endif
+    
     newBytes = sizeof(ExecStack) + (newElems-1) * sizeof(Tcl_Obj *);
 
     oldPtr = esPtr;
@@ -1211,7 +1279,7 @@ TclStackFree(
     Tcl_Obj **markerPtr, *marker;
 
     if (iPtr == NULL || iPtr->execEnvPtr == NULL) {
-	Tcl_Free((char *) freePtr);
+	ckfree((char *) freePtr);
 	return;
     }
 
@@ -1246,10 +1314,10 @@ TclStackFree(
     while (esPtr->nextPtr) {
 	esPtr = esPtr->nextPtr;
     }
-    esPtr->tosPtr = &esPtr->stackWords[-1];
+    esPtr->tosPtr = STACK_BASE(esPtr);
     while (esPtr->prevPtr) {
 	ExecStack *tmpPtr = esPtr->prevPtr;
-	if (tmpPtr->tosPtr == &tmpPtr->stackWords[-1]) {
+	if (tmpPtr->tosPtr == STACK_BASE(tmpPtr)) {
 	    DeleteExecStack(tmpPtr);
 	} else {
 	    break;
@@ -1257,6 +1325,10 @@ TclStackFree(
     }
     if (esPtr->prevPtr) {
 	eePtr->execStackPtr = esPtr->prevPtr;
+#ifdef PURIFY
+	eePtr->execStackPtr->nextPtr = NULL;
+	DeleteExecStack(esPtr);
+#endif
     } else {
 	eePtr->execStackPtr = esPtr;
     }
@@ -1271,7 +1343,7 @@ TclStackAlloc(
     int numWords = (numBytes + (sizeof(Tcl_Obj *) - 1))/sizeof(Tcl_Obj *);
 
     if (iPtr == NULL || iPtr->execEnvPtr == NULL) {
-	return (void *) Tcl_Alloc(numBytes);
+	return (void *) ckalloc(numBytes);
     }
 
     return (void *) StackAllocWords(interp, numWords);
@@ -1290,7 +1362,7 @@ TclStackRealloc(
     int numWords;
 
     if (iPtr == NULL || iPtr->execEnvPtr == NULL) {
-	return (void *) Tcl_Realloc((char *) ptr, numBytes);
+	return (void *) ckrealloc((char *) ptr, numBytes);
     }
 
     eePtr = iPtr->execEnvPtr;
@@ -1395,17 +1467,12 @@ Tcl_NRExprObj(
     Tcl_Obj *resultPtr)
 {
     ByteCode *codePtr;
+    Tcl_InterpState state = Tcl_SaveInterpState(interp, TCL_OK);
 
-    /* TODO: consider saving whole state? */
-    Tcl_Obj *saveObjPtr = Tcl_GetObjResult(interp);
-
-    Tcl_IncrRefCount(saveObjPtr);
-
+    Tcl_ResetResult(interp);
     codePtr = CompileExprObj(interp, objPtr);
 
-    /* TODO: Confirm reset not required? */
-    /*Tcl_ResetResult(interp);*/
-    Tcl_NRAddCallback(interp, ExprObjCallback, saveObjPtr, resultPtr,
+    Tcl_NRAddCallback(interp, ExprObjCallback, state, resultPtr,
 	    NULL, NULL);
     return TclNRExecuteByteCode(interp, codePtr);
 }
@@ -1416,14 +1483,15 @@ ExprObjCallback(
     Tcl_Interp *interp,
     int result)
 {
-    Tcl_Obj *saveObjPtr = data[0];
+    Tcl_InterpState state = data[0];
     Tcl_Obj *resultPtr = data[1];
 
     if (result == TCL_OK) {
 	TclSetDuplicateObj(resultPtr, Tcl_GetObjResult(interp));
-	Tcl_SetObjResult(interp, saveObjPtr);
+	(void) Tcl_RestoreInterpState(interp, state);
+    } else {
+	Tcl_DiscardInterpState(state);
     }
-    TclDecrRefCount(saveObjPtr);
     return result;
 }
 
@@ -1466,7 +1534,7 @@ CompileExprObj(
     if (objPtr->typePtr == &exprCodeType) {
 	Namespace *namespacePtr = iPtr->varFramePtr->nsPtr;
 
-	codePtr = objPtr->internalRep.otherValuePtr;
+	codePtr = objPtr->internalRep.twoPtrValue.ptr1;
 	if (((Interp *) *codePtr->interpHandle != iPtr)
 		|| (codePtr->compileEpoch != iPtr->compileEpoch)
 		|| (codePtr->nsPtr != namespacePtr)
@@ -1506,7 +1574,7 @@ CompileExprObj(
 	TclInitByteCodeObj(objPtr, &compEnv);
 	objPtr->typePtr = &exprCodeType;
 	TclFreeCompileEnv(&compEnv);
-	codePtr = objPtr->internalRep.otherValuePtr;
+	codePtr = objPtr->internalRep.twoPtrValue.ptr1;
 	if (iPtr->varFramePtr->localCachePtr) {
 	    codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr;
 	    codePtr->localCachePtr->refCount++;
@@ -1578,10 +1646,9 @@ static void
 FreeExprCodeInternalRep(
     Tcl_Obj *objPtr)
 {
-    ByteCode *codePtr = objPtr->internalRep.otherValuePtr;
+    ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1;
 
     objPtr->typePtr = NULL;
-    objPtr->internalRep.otherValuePtr = NULL;
     codePtr->refCount--;
     if (codePtr->refCount <= 0) {
 	TclCleanupByteCode(codePtr);
@@ -1639,7 +1706,7 @@ TclCompileObj(
 	 * here.
 	 */
 
-	codePtr = objPtr->internalRep.otherValuePtr;
+	codePtr = objPtr->internalRep.twoPtrValue.ptr1;
 	if (((Interp *) *codePtr->interpHandle != iPtr)
 		|| (codePtr->compileEpoch != iPtr->compileEpoch)
 		|| (codePtr->nsPtr != namespacePtr)
@@ -1767,7 +1834,7 @@ TclCompileObj(
     iPtr->invokeWord = word;
     TclSetByteCodeFromAny(interp, objPtr, NULL, NULL);
     iPtr->invokeCmdFramePtr = NULL;
-    codePtr = objPtr->internalRep.otherValuePtr;
+    codePtr = objPtr->internalRep.twoPtrValue.ptr1;
     if (iPtr->varFramePtr->localCachePtr) {
 	codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr;
 	codePtr->localCachePtr->refCount++;
@@ -1841,7 +1908,7 @@ TclIncrObj(
 	    TclSetLongObj(valuePtr, sum);
 	    return TCL_OK;
 	}
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	{
 	    Tcl_WideInt w1 = (Tcl_WideInt) augend;
 	    Tcl_WideInt w2 = (Tcl_WideInt) addend;
@@ -1874,7 +1941,7 @@ TclIncrObj(
 	return TCL_ERROR;
     }
 
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
     if ((type1 != TCL_NUMBER_BIG) && (type2 != TCL_NUMBER_BIG)) {
 	Tcl_WideInt w1, w2, sum;
 
@@ -1904,6 +1971,41 @@ TclIncrObj(
 /*
  *----------------------------------------------------------------------
  *
+ * ArgumentBCEnter --
+ *
+ *	This is a helper for TclNRExecuteByteCode/TEBCresume that encapsulates
+ *	a code sequence that is fairly common in the code but *not* commonly
+ *	called.
+ *
+ * Results:
+ *	None
+ *
+ * Side effects:
+ *	May register information about the bytecode in the command frame.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+ArgumentBCEnter(
+    Tcl_Interp *interp,
+    ByteCode *codePtr,
+    TEBCdata *tdPtr,
+    const unsigned char *pc,
+    int objc,
+    Tcl_Obj **objv)
+{
+    int cmd;
+
+    if (GetSrcInfoForPc(pc, codePtr, NULL, NULL, &cmd)) {
+	TclArgumentBCEnter(interp, objv, objc, codePtr, &tdPtr->cmdFrame, cmd,
+		pc - codePtr->codeStart);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * TclNRExecuteByteCode --
  *
  *	This procedure executes the instructions of a ByteCode structure. It
@@ -1936,10 +2038,6 @@ TclNRExecuteByteCode(
 		* sizeof(void *);
     int numWords = (size + sizeof(Tcl_Obj *) - 1) / sizeof(Tcl_Obj *);
 
-    if (iPtr->execEnvPtr->rewind) {
-	return TCL_ERROR;
-    }
-
     codePtr->refCount++;
 
     /*
@@ -1958,11 +2056,8 @@ TclNRExecuteByteCode(
     esPtr->tosPtr = initTosPtr;
 
     TD->codePtr     = codePtr;
-    TD->pc	    = codePtr->codeStart;
     TD->catchTop    = initCatchTop;
-    TD->cleanup     = 0;
     TD->auxObjList  = NULL;
-    TD->checkInterp = 0;
 
     /*
      * TIP #280: Initialize the frame. Do not push it yet: it will be pushed
@@ -1972,7 +2067,6 @@ TclNRExecuteByteCode(
     bcFramePtr->type = ((codePtr->flags & TCL_BYTECODE_PRECOMPILED)
 	    ? TCL_LOCATION_PREBC : TCL_LOCATION_BC);
     bcFramePtr->level = (iPtr->cmdFramePtr ? iPtr->cmdFramePtr->level+1 : 1);
-    bcFramePtr->numLevels = iPtr->numLevels;
     bcFramePtr->framePtr = iPtr->framePtr;
     bcFramePtr->nextPtr = iPtr->cmdFramePtr;
     bcFramePtr->nline = 0;
@@ -1980,8 +2074,9 @@ TclNRExecuteByteCode(
     bcFramePtr->litarg = NULL;
     bcFramePtr->data.tebc.codePtr = codePtr;
     bcFramePtr->data.tebc.pc = NULL;
-    bcFramePtr->cmd.str.cmd = NULL;
-    bcFramePtr->cmd.str.len = 0;
+    bcFramePtr->cmdObj = NULL;
+    bcFramePtr->cmd = NULL;
+    bcFramePtr->len = 0;
 
 #ifdef TCL_COMPILE_STATS
     iPtr->stats.numExecutions++;
@@ -1991,8 +2086,8 @@ TclNRExecuteByteCode(
      * Push the callback for bytecode execution
      */
 
-    TclNRAddCallback(interp, TEBCresume, TD, /*resume*/ INT2PTR(0),
-	    NULL, NULL);
+    TclNRAddCallback(interp, TEBCresume, TD, /* pc */ NULL,
+	    /* cleanup */ INT2PTR(0), NULL);
     return TCL_OK;
 }
 
@@ -2048,9 +2143,6 @@ TEBCresume(
 #define auxObjList	(TD->auxObjList)
 #define catchTop	(TD->catchTop)
 #define codePtr		(TD->codePtr)
-#define checkInterp	(TD->checkInterp)
-			/* Indicates when a check of interp readyness is
-			 * necessary. Set by CACHE_STACK_INFO() */
 
     /*
      * Globals: variables that store state, must remain valid at all times.
@@ -2058,15 +2150,19 @@ TEBCresume(
 
     Tcl_Obj **tosPtr;		/* Cached pointer to top of evaluation
 				 * stack. */
-    const unsigned char *pc;	/* The current program counter. */
-
+    const unsigned char *pc = data[1];
+                                /* The current program counter. */
+    unsigned char inst;         /* The currently running instruction */
+    
     /*
      * Transfer variables - needed only between opcodes, but not while
      * executing an instruction.
      */
 
-    int cleanup = 0;
+    int cleanup = PTR2INT(data[2]);
     Tcl_Obj *objResultPtr;
+    int checkInterp;            /* Indicates when a check of interp readyness
+				 * is necessary. Set by CACHE_STACK_INFO() */
 
     /*
      * Locals - variables that are used within opcodes or bounded sections of
@@ -2084,88 +2180,84 @@ TEBCresume(
 #endif
 
 #ifdef TCL_COMPILE_DEBUG
+    int starting = 1;
     traceInstructions = (tclTraceExec == 3);
 #endif
 
     TEBC_DATA_DIG();
 
 #ifdef TCL_COMPILE_DEBUG
-    if (!data[1] && (tclTraceExec >= 2)) {
+    if (!pc && (tclTraceExec >= 2)) {
 	PrintByteCodeInfo(codePtr);
 	fprintf(stdout, "  Starting stack top=%d\n", (int) CURR_DEPTH);
 	fflush(stdout);
     }
 #endif
 
-    if (data[1] /* resume from invocation */) {
-	if (iPtr->execEnvPtr->rewind) {
-	    result = TCL_ERROR;
-	}
+    if (!pc) {
+	/* bytecode is starting from scratch */
+	checkInterp = 0;
+	pc = codePtr->codeStart;
+	goto cleanup0;
+    } else {
+        /* resume from invocation */
+	CACHE_STACK_INFO();
+
 	NRE_ASSERT(iPtr->cmdFramePtr == bcFramePtr);
+	if (bcFramePtr->cmdObj) {
+	    Tcl_DecrRefCount(bcFramePtr->cmdObj);
+	    bcFramePtr->cmdObj = NULL;
+	    bcFramePtr->cmd = NULL;
+	}
 	iPtr->cmdFramePtr = bcFramePtr->nextPtr;
 	if (iPtr->flags & INTERP_DEBUG_FRAME) {
-	    TclArgumentBCRelease((Tcl_Interp *) iPtr, bcFramePtr);
+	    TclArgumentBCRelease(interp, bcFramePtr);
+	}
+	if (iPtr->execEnvPtr->rewind) {
+	    result = TCL_ERROR;
+	    goto abnormalReturn;
 	}
 	if (codePtr->flags & TCL_BYTECODE_RECOMPILE) {
 	    iPtr->flags |= ERR_ALREADY_LOGGED;
 	    codePtr->flags &= ~TCL_BYTECODE_RECOMPILE;
 	}
 
-	CACHE_STACK_INFO();
-	if (result == TCL_OK) {
-#ifndef TCL_COMPILE_DEBUG
-	    if (*pc == INST_POP) {
-		NEXT_INST_V(1, cleanup, 0);
-	    }
-#endif
-	    /*
-	     * Push the call's object result and continue execution with the
-	     * next instruction.
-	     */
-
-	    TRACE_WITH_OBJ(("%u => ... after \"%.20s\": TCL_OK, result=",
-		    objc, cmdNameBuf), Tcl_GetObjResult(interp));
-
-	    objResultPtr = Tcl_GetObjResult(interp);
-
-	    /*
-	     * Reset the interp's result to avoid possible duplications of
-	     * large objects [Bug 781585]. We do not call Tcl_ResetResult to
-	     * avoid any side effects caused by the resetting of errorInfo and
-	     * errorCode [Bug 804681], which are not needed here. We chose
-	     * instead to manipulate the interp's object result directly.
-	     *
-	     * Note that the result object is now in objResultPtr, it keeps
-	     * the refCount it had in its role of iPtr->objResultPtr.
-	     */
-
-	    TclNewObj(objPtr);
-	    Tcl_IncrRefCount(objPtr);
-	    iPtr->objResultPtr = objPtr;
-	    NEXT_INST_V(0, cleanup, -1);
+	if (result != TCL_OK) {
+	    pc--;
+	    goto processExceptionReturn;
 	}
 
 	/*
-	 * Result not TCL_OK: fall through
+	 * Push the call's object result and continue execution with the next
+	 * instruction.
 	 */
-    }
 
-    if (iPtr->execEnvPtr->rewind) {
-	result = TCL_ERROR;
-	goto abnormalReturn;
-    }
+	TRACE_WITH_OBJ(("%u => ... after \"%.20s\": TCL_OK, result=",
+		objc, cmdNameBuf), Tcl_GetObjResult(interp));
 
-    if (result != TCL_OK) {
-	pc--;
-	goto processExceptionReturn;
-    }
-
-    /*
-     * Loop executing instructions until a "done" instruction, a TCL_RETURN,
-     * or some error.
-     */
+	/*
+	 * Reset the interp's result to avoid possible duplications of large
+	 * objects [Bug 781585]. We do not call Tcl_ResetResult to avoid any
+	 * side effects caused by the resetting of errorInfo and errorCode
+	 * [Bug 804681], which are not needed here. We chose instead to
+	 * manipulate the interp's object result directly.
+	 *
+	 * Note that the result object is now in objResultPtr, it keeps the
+	 * refCount it had in its role of iPtr->objResultPtr.
+	 */
 
-    goto cleanup0;
+	objResultPtr = Tcl_GetObjResult(interp);
+	TclNewObj(objPtr);
+	Tcl_IncrRefCount(objPtr);
+	iPtr->objResultPtr = objPtr;
+#ifndef TCL_COMPILE_DEBUG
+	if (*pc == INST_POP) {
+	    TclDecrRefCount(objResultPtr);
+	    NEXT_INST_V(1, cleanup, 0);
+	}
+#endif
+	NEXT_INST_V(0, cleanup, -1);
+    }
 
     /*
      * Targets for standard instruction endings; unrolled for speed in the
@@ -2225,24 +2317,6 @@ TEBCresume(
     }
   cleanup0:
 
-#ifdef TCL_COMPILE_DEBUG
-    /*
-     * Skip the stack depth check if an expansion is in progress.
-     */
-
-    ValidatePcAndStackTop(codePtr, pc, CURR_DEPTH, 0,
-	    /*checkStack*/ auxObjList == NULL);
-    if (traceInstructions) {
-	fprintf(stdout, "%2d: %2d ", iPtr->numLevels, (int) CURR_DEPTH);
-	TclPrintInstruction(codePtr, pc);
-	fflush(stdout);
-    }
-#endif /* TCL_COMPILE_DEBUG */
-
-#ifdef TCL_COMPILE_STATS
-    iPtr->stats.instructionCount[*pc]++;
-#endif
-
     /*
      * Check for asynchronous handlers [Bug 746722]; we do the check every
      * ASYNC_CHECK_COUNT_MASK instruction, of the form (2**n-1).
@@ -2274,8 +2348,6 @@ TEBCresume(
 	CACHE_STACK_INFO();
     }
 
-    TCL_DTRACE_INST_NEXT();
-
     /*
      * These two instructions account for 26% of all instructions (according
      * to measurements on tclbench by Ben Vitale
@@ -2285,13 +2357,62 @@ TEBCresume(
      * reduces total obj size.
      */
 
-    if (*pc == INST_LOAD_SCALAR1) {
-	goto instLoadScalar1;
-    } else if (*pc == INST_PUSH1) {
-	goto instPush1Peephole;
+    inst = *pc;
+    
+    peepholeStart:
+#ifdef TCL_COMPILE_STATS
+    iPtr->stats.instructionCount[*pc]++;
+#endif
+
+#ifdef TCL_COMPILE_DEBUG
+    /*
+     * Skip the stack depth check if an expansion is in progress.
+     */
+
+    CHECK_STACK();
+    if (traceInstructions) {
+	fprintf(stdout, "%2d: %2d ", iPtr->numLevels, (int) CURR_DEPTH);
+	TclPrintInstruction(codePtr, pc);
+	fflush(stdout);
     }
+#endif /* TCL_COMPILE_DEBUG */
 
-    switch (*pc) {
+    TCL_DTRACE_INST_NEXT();
+    
+    if (inst == INST_LOAD_SCALAR1) {
+	goto instLoadScalar1;
+    } else if (inst == INST_PUSH1) {
+	PUSH_OBJECT(codePtr->objArrayPtr[TclGetUInt1AtPtr(pc+1)]);
+	TRACE_WITH_OBJ(("%u => ", TclGetUInt1AtPtr(pc+1)), OBJ_AT_TOS);
+	inst = *(pc += 2);
+	goto peepholeStart;
+    } else if (inst == INST_START_CMD) {
+	/*
+	 * Peephole: do not run INST_START_CMD, just skip it
+	 */
+	
+	iPtr->cmdCount += TclGetUInt4AtPtr(pc+5);
+	if (checkInterp) {
+	    checkInterp = 0;
+	    if (((codePtr->compileEpoch != iPtr->compileEpoch) ||
+		 (codePtr->nsEpoch != iPtr->varFramePtr->nsPtr->resolverEpoch)) &&
+		!(codePtr->flags & TCL_BYTECODE_PRECOMPILED)) {
+		goto instStartCmdFailed;
+	    }
+	}
+	inst = *(pc += 9);
+	goto peepholeStart;
+    } else if (inst == INST_NOP) {
+#ifndef TCL_COMPILE_DEBUG
+	while (inst == INST_NOP)
+#endif
+	{
+	    inst = *++pc;
+	}
+	goto peepholeStart;
+    }
+    
+    switch (inst) {
     case INST_SYNTAX:
     case INST_RETURN_IMM: {
 	int code = TclGetInt4AtPtr(pc+1);
@@ -2304,7 +2425,7 @@ TEBCresume(
 	TRACE(("%u %u => ", code, level));
 	result = TclProcessReturn(interp, code, level, OBJ_AT_TOS);
 	if (result == TCL_OK) {
-	    TRACE_APPEND(("continuing to next instruction (result=\"%.30s\")",
+	    TRACE_APPEND(("continuing to next instruction (result=\"%.30s\")\n",
 		    O2S(objResultPtr)));
 	    NEXT_INST_F(9, 1, 0);
 	}
@@ -2313,6 +2434,7 @@ TEBCresume(
 	    iPtr->flags &= ~ERR_ALREADY_LOGGED;
 	}
 	cleanup = 2;
+	TRACE_APPEND(("\n"));
 	goto processExceptionReturn;
     }
 
@@ -2320,16 +2442,186 @@ TEBCresume(
 	TRACE(("=> "));
 	objResultPtr = POP_OBJECT();
 	result = Tcl_SetReturnOptions(interp, OBJ_AT_TOS);
-	Tcl_DecrRefCount(OBJ_AT_TOS);
-	OBJ_AT_TOS = objResultPtr;
 	if (result == TCL_OK) {
-	    TRACE_APPEND(("continuing to next instruction (result=\"%.30s\")",
+	    Tcl_DecrRefCount(OBJ_AT_TOS);
+	    OBJ_AT_TOS = objResultPtr;
+	    TRACE_APPEND(("continuing to next instruction (result=\"%.30s\")\n",
 		    O2S(objResultPtr)));
 	    NEXT_INST_F(1, 0, 0);
+	} else if (result == TCL_ERROR) {
+	    /*
+	     * BEWARE! Must do this in this order, because an error in the
+	     * option dictionary overrides the result (and can be verified by
+	     * test).
+	     */
+
+	    Tcl_SetObjResult(interp, objResultPtr);
+	    Tcl_SetReturnOptions(interp, OBJ_AT_TOS);
+	    Tcl_DecrRefCount(OBJ_AT_TOS);
+	    OBJ_AT_TOS = objResultPtr;
+	} else {
+	    Tcl_DecrRefCount(OBJ_AT_TOS);
+	    OBJ_AT_TOS = objResultPtr;
+	    Tcl_SetObjResult(interp, objResultPtr);
+	}
+	cleanup = 1;
+	TRACE_APPEND(("\n"));
+	goto processExceptionReturn;
+
+    {
+	CoroutineData *corPtr;
+	int yieldParameter;
+
+    case INST_YIELD:
+	corPtr = iPtr->execEnvPtr->corPtr;
+	TRACE(("%.30s => ", O2S(OBJ_AT_TOS)));
+	if (!corPtr) {
+	    TRACE_APPEND(("ERROR: yield outside coroutine\n"));
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "yield can only be called in a coroutine", -1));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD",
+		    NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
+	}
+
+#ifdef TCL_COMPILE_DEBUG
+	if (tclTraceExec >= 2) {
+	    if (traceInstructions) {
+		TRACE_APPEND(("YIELD...\n"));
+	    } else {
+		fprintf(stdout, "%d: (%u) yielding value \"%.30s\"\n",
+			iPtr->numLevels, (unsigned)(pc - codePtr->codeStart),
+			Tcl_GetString(OBJ_AT_TOS));
+	    }
+	    fflush(stdout);
+	}
+#endif
+	yieldParameter = 0;
+	Tcl_SetObjResult(interp, OBJ_AT_TOS);
+	goto doYield;
+
+    case INST_YIELD_TO_INVOKE:
+	corPtr = iPtr->execEnvPtr->corPtr;
+	valuePtr = OBJ_AT_TOS;
+	if (!corPtr) {
+	    TRACE(("[%.30s] => ERROR: yield outside coroutine\n",
+		    O2S(valuePtr)));
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "yieldto can only be called in a coroutine", -1));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD",
+		    NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
+	}
+	if (((Namespace *)TclGetCurrentNamespace(interp))->flags & NS_DYING) {
+	    TRACE(("[%.30s] => ERROR: yield in deleted\n",
+		    O2S(valuePtr)));
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "yieldto called in deleted namespace", -1));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "YIELDTO_IN_DELETED",
+		    NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
 	}
-	Tcl_SetObjResult(interp, objResultPtr);
+
+#ifdef TCL_COMPILE_DEBUG
+	if (tclTraceExec >= 2) {
+	    if (traceInstructions) {
+		TRACE(("[%.30s] => YIELD...\n", O2S(valuePtr)));
+	    } else {
+		/* FIXME: What is the right thing to trace? */
+		fprintf(stdout, "%d: (%u) yielding to [%.30s]\n",
+			iPtr->numLevels, (unsigned)(pc - codePtr->codeStart),
+			Tcl_GetString(valuePtr));
+	    }
+	    fflush(stdout);
+	}
+#endif
+
+	/*
+	 * Install a tailcall record in the caller and continue with the
+	 * yield. The yield is switched into multi-return mode (via the
+	 * 'yieldParameter').
+	 */
+
+	Tcl_IncrRefCount(valuePtr);
+	iPtr->execEnvPtr = corPtr->callerEEPtr;
+	TclSetTailcall(interp, valuePtr);
+	iPtr->execEnvPtr = corPtr->eePtr;
+	yieldParameter = (PTR2INT(NULL)+1);	/*==CORO_ACTIVATE_YIELDM*/
+
+    doYield:
+	/* TIP #280: Record the last piece of info needed by
+	 * 'TclGetSrcInfoForPc', and push the frame.
+	 */
+	
+	bcFramePtr->data.tebc.pc = (char *) pc;
+	iPtr->cmdFramePtr = bcFramePtr;
+
+	if (iPtr->flags & INTERP_DEBUG_FRAME) {
+	    ArgumentBCEnter(interp, codePtr, TD, pc, objc, objv);
+	}
+
+	pc++;
 	cleanup = 1;
+	TEBC_YIELD();
+	TclNRAddCallback(interp, TclNRCoroutineActivateCallback, corPtr,
+		INT2PTR(yieldParameter), NULL, NULL);
+	return TCL_OK;
+    }
+
+    case INST_TAILCALL: {
+	Tcl_Obj *listPtr, *nsObjPtr;
+
+	opnd = TclGetUInt1AtPtr(pc+1);
+
+	if (!(iPtr->varFramePtr->isProcCallFrame & 1)) {
+	    TRACE(("%d => ERROR: tailcall in non-proc context\n", opnd));
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "tailcall can only be called from a proc or lambda", -1));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "TAILCALL", "ILLEGAL", NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
+	}
+
+#ifdef TCL_COMPILE_DEBUG
+	/* FIXME: What is the right thing to trace? */
+	{
+	    register int i;
+
+	    TRACE(("%d [", opnd));
+	    for (i=opnd-1 ; i>=0 ; i--) {
+		TRACE_APPEND(("\"%.30s\"", O2S(OBJ_AT_DEPTH(i))));
+		if (i > 0) {
+		    TRACE_APPEND((" "));
+		}
+	    }
+	    TRACE_APPEND(("] => RETURN..."));
+	}
+#endif
+
+	/*
+	 * Push the evaluation of the called command into the NR callback
+	 * stack.
+	 */
+
+	listPtr = Tcl_NewListObj(opnd, &OBJ_AT_DEPTH(opnd-1));
+	nsObjPtr = Tcl_NewStringObj(iPtr->varFramePtr->nsPtr->fullName, -1);
+	TclListObjSetElement(interp, listPtr, 0, nsObjPtr);
+	if (iPtr->varFramePtr->tailcallPtr) {
+	    Tcl_DecrRefCount(iPtr->varFramePtr->tailcallPtr);
+	}
+	iPtr->varFramePtr->tailcallPtr = listPtr;
+
+	result = TCL_RETURN;
+	cleanup = opnd;
 	goto processExceptionReturn;
+    }
 
     case INST_DONE:
 	if (tosPtr > initTosPtr) {
@@ -2353,23 +2645,6 @@ TEBCresume(
 	(void) POP_OBJECT();
 	goto abnormalReturn;
 
-    case INST_PUSH1:
-    instPush1Peephole:
-	PUSH_OBJECT(codePtr->objArrayPtr[TclGetUInt1AtPtr(pc+1)]);
-	TRACE_WITH_OBJ(("%u => ", TclGetInt1AtPtr(pc+1)), OBJ_AT_TOS);
-	pc += 2;
-#if !TCL_COMPILE_DEBUG
-	/*
-	 * Runtime peephole optimisation: check if we are pushing again.
-	 */
-
-	if (*pc == INST_PUSH1) {
-	    TCL_DTRACE_INST_NEXT();
-	    goto instPush1Peephole;
-	}
-#endif
-	NEXT_INST_F(0, 0, 0);
-
     case INST_PUSH4:
 	objResultPtr = codePtr->objArrayPtr[TclGetUInt4AtPtr(pc+1)];
 	TRACE_WITH_OBJ(("%u => ", TclGetUInt4AtPtr(pc+1)), objResultPtr);
@@ -2379,68 +2654,7 @@ TEBCresume(
 	TRACE_WITH_OBJ(("=> discarding "), OBJ_AT_TOS);
 	objPtr = POP_OBJECT();
 	TclDecrRefCount(objPtr);
-
-	/*
-	 * Runtime peephole optimisation: an INST_POP is scheduled at the end
-	 * of most commands. If the next instruction is an INST_START_CMD,
-	 * fall through to it.
-	 */
-
-	pc++;
-#if !TCL_COMPILE_DEBUG
-	if (*pc == INST_START_CMD) {
-	    TCL_DTRACE_INST_NEXT();
-	    goto instStartCmdPeephole;
-	}
-#endif
-	NEXT_INST_F(0, 0, 0);
-
-    case INST_START_CMD:
-#if !TCL_COMPILE_DEBUG
-    instStartCmdPeephole:
-#endif
-	/*
-	 * Remark that if the interpreter is marked for deletion its
-	 * compileEpoch is modified, so that the epoch check also verifies
-	 * that the interp is not deleted. If no outside call has been made
-	 * since the last check, it is safe to omit the check.
-	 */
-
-	iPtr->cmdCount += TclGetUInt4AtPtr(pc+5);
-	if (!checkInterp) {
-	    goto instStartCmdOK;
-	} else if (((codePtr->compileEpoch == iPtr->compileEpoch)
-		&& (codePtr->nsEpoch == iPtr->varFramePtr->nsPtr->resolverEpoch))
-		|| (codePtr->flags & TCL_BYTECODE_PRECOMPILED)) {
-	    checkInterp = 0;
-	instStartCmdOK:
-	    NEXT_INST_F(9, 0, 0);
-	} else {
-	    const char *bytes;
-
-	    length = 0;
-
-	    /*
-	     * We used to switch to direct eval; for NRE-awareness we now
-	     * compile and eval the command so that this evaluation does not
-	     * add a new TEBC instance. [Bug 2910748]
-	     */
-
-	    if (TclInterpReady(interp) == TCL_ERROR) {
-		goto gotError;
-	    }
-
-	    codePtr->flags |= TCL_BYTECODE_RECOMPILE;
-	    bytes = GetSrcInfoForPc(pc, codePtr, &length, NULL);
-	    opnd = TclGetUInt4AtPtr(pc+1);
-	    pc += (opnd-1);
-	    PUSH_OBJECT(Tcl_NewStringObj(bytes, length));
-	    goto instEvalStk;
-	}
-
-    case INST_NOP:
-	pc += 1;
-	goto cleanup0;
+	NEXT_INST_F(1, 0, 0);
 
     case INST_DUP:
 	objResultPtr = OBJ_AT_TOS;
@@ -2450,7 +2664,7 @@ TEBCresume(
     case INST_OVER:
 	opnd = TclGetUInt4AtPtr(pc+1);
 	objResultPtr = OBJ_AT_DEPTH(opnd);
-	TRACE_WITH_OBJ(("=> "), objResultPtr);
+	TRACE_WITH_OBJ(("%u => ", opnd), objResultPtr);
 	NEXT_INST_F(5, 0, 1);
 
     case INST_REVERSE: {
@@ -2465,10 +2679,11 @@ TEBCresume(
 	    *b = tmpPtr;
 	    a++; b--;
 	}
+	TRACE(("%u => OK\n", opnd));
 	NEXT_INST_F(5, 0, 0);
     }
 
-    case INST_CONCAT1: {
+    case INST_STR_CONCAT1: {
 	int appendLen = 0;
 	char *bytes, *p;
 	Tcl_Obj **currPtr;
@@ -2548,7 +2763,7 @@ TEBCresume(
 		Tcl_Panic("max size for a Tcl value (%d bytes) exceeded",
 			INT_MAX);
 	    }
-#if !TCL_COMPILE_DEBUG
+#ifndef TCL_COMPILE_DEBUG
 	    if (bytes != tclEmptyStringRep && !Tcl_IsShared(objResultPtr)) {
 		TclFreeIntRep(objResultPtr);
 		objResultPtr->bytes = ckrealloc(bytes, length+appendLen+1);
@@ -2584,7 +2799,7 @@ TEBCresume(
 		Tcl_Panic("max size for a Tcl value (%d bytes) exceeded",
 			INT_MAX);
 	    }
-#if !TCL_COMPILE_DEBUG
+#ifndef TCL_COMPILE_DEBUG
 	    if (!Tcl_IsShared(objResultPtr)) {
 		bytes = (char *) Tcl_SetByteArrayLength(objResultPtr,
 			length + appendLen);
@@ -2617,6 +2832,17 @@ TEBCresume(
 	NEXT_INST_V(2, opnd, 1);
     }
 
+    case INST_CONCAT_STK:
+	/*
+	 * Pop the opnd (objc) top stack elements, run through Tcl_ConcatObj,
+	 * and then decrement their ref counts.
+	 */
+
+	opnd = TclGetUInt4AtPtr(pc+1);
+	objResultPtr = Tcl_ConcatObj(opnd, &OBJ_AT_DEPTH(opnd-1));
+	TRACE_WITH_OBJ(("%u => ", opnd), objResultPtr);
+	NEXT_INST_V(5, opnd, 1);
+
     case INST_EXPAND_START:
 	/*
 	 * Push an element to the auxObjList. This records the current
@@ -2633,9 +2859,28 @@ TEBCresume(
 
 	TclNewObj(objPtr);
 	objPtr->internalRep.ptrAndLongRep.value = CURR_DEPTH;
+	objPtr->length = 0;
 	PUSH_TAUX_OBJ(objPtr);
+	TRACE(("=> mark depth as %d\n", (int) CURR_DEPTH));
 	NEXT_INST_F(1, 0, 0);
 
+    case INST_EXPAND_DROP:
+	/*
+	 * Drops an element of the auxObjList, popping stack elements to
+	 * restore the stack to the state before the point where the aux
+	 * element was created.
+	 */
+
+	CLANG_ASSERT(auxObjList);
+	objc = CURR_DEPTH - auxObjList->internalRep.ptrAndLongRep.value;
+	POP_TAUX_OBJ();
+#ifdef TCL_COMPILE_DEBUG
+	/* Ugly abuse! */
+	starting = 1;
+#endif
+	TRACE(("=> drop %d items\n", objc));
+	NEXT_INST_V(1, objc, 0);
+
     case INST_EXPAND_STKTOP: {
 	int i;
 	ptrdiff_t moved;
@@ -2647,9 +2892,9 @@ TEBCresume(
 	 */
 
 	objPtr = OBJ_AT_TOS;
+	TRACE(("\"%.30s\" => ", O2S(objPtr)));
 	if (TclListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) {
-	    TRACE_WITH_OBJ(("%.30s => ERROR: ", O2S(objPtr)),
-		    Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	(void) POP_OBJECT();
@@ -2661,22 +2906,27 @@ TEBCresume(
 	 * stack depth, as seen by the compiler.
 	 */
 
-	length = objc + (codePtr->maxStackDepth - TclGetInt4AtPtr(pc+1));
-	DECACHE_STACK_INFO();
-	moved = GrowEvaluationStack(iPtr->execEnvPtr, length, 1)
-		- (Tcl_Obj **) TD;
-	if (moved) {
-	    /*
-	     * Change the global data to point to the new stack: move the
-	     * TEBCdataPtr TD, recompute the position of every other
-	     * stack-allocated parameter, update the stack pointers.
-	     */
+	auxObjList->length += objc - 1;
+	if ((objc > 1) && (auxObjList->length > 0)) {
+	    length = auxObjList->length /* Total expansion room we need */
+		    + codePtr->maxStackDepth /* Beyond the original max */
+		    - CURR_DEPTH;	/* Relative to where we are */
+	    DECACHE_STACK_INFO();
+	    moved = GrowEvaluationStack(iPtr->execEnvPtr, length, 1)
+		    - (Tcl_Obj **) TD;
+	    if (moved) {
+		/*
+		 * Change the global data to point to the new stack: move the
+		 * TEBCdataPtr TD, recompute the position of every other
+		 * stack-allocated parameter, update the stack pointers.
+		 */
 
-	    esPtr = iPtr->execEnvPtr->execStackPtr;
-	    TD = (TEBCdata *) (((Tcl_Obj **)TD) + moved);
+		esPtr = iPtr->execEnvPtr->execStackPtr;
+		TD = (TEBCdata *) (((Tcl_Obj **)TD) + moved);
 
-	    catchTop += moved;
-	    tosPtr += moved;
+		catchTop += moved;
+		tosPtr += moved;
+	    }
 	}
 
 	/*
@@ -2688,6 +2938,7 @@ TEBCresume(
 	    PUSH_OBJECT(objv[i]);
 	}
 
+	TRACE_APPEND(("OK\n"));
 	Tcl_DecrRefCount(objPtr);
 	NEXT_INST_F(5, 0, 0);
     }
@@ -2780,8 +3031,7 @@ TEBCresume(
 	iPtr->cmdFramePtr = bcFramePtr;
 
 	if (iPtr->flags & INTERP_DEBUG_FRAME) {
-	    TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
-		    codePtr, bcFramePtr, pc - codePtr->codeStart);
+	    ArgumentBCEnter(interp, codePtr, TD, pc, objc, objv);
 	}
 
 	DECACHE_STACK_INFO();
@@ -2789,7 +3039,7 @@ TEBCresume(
 	pc += pcAdjustment;
 	TEBC_YIELD();
 	return TclNREvalObjv(interp, objc, objv,
-		TCL_EVAL_NOERR, NULL);
+		TCL_EVAL_NOERR | TCL_EVAL_SOURCE_IN_FRAME, NULL);
 
 #if TCL_SUPPORT_84_BYTECODE
     case INST_CALL_BUILTIN_FUNC1:
@@ -2876,6 +3126,69 @@ TEBCresume(
 	Tcl_Panic("TclNRExecuteByteCode: obsolete INST_CALL_FUNC1 found");
 #endif
 
+    case INST_INVOKE_REPLACE:
+	objc = TclGetUInt4AtPtr(pc+1);
+	opnd = TclGetUInt1AtPtr(pc+5);
+	objPtr = POP_OBJECT();
+	objv = &OBJ_AT_DEPTH(objc-1);
+	cleanup = objc;
+#ifdef TCL_COMPILE_DEBUG
+	if (tclTraceExec >= 2) {
+	    int i;
+
+	    if (traceInstructions) {
+		strncpy(cmdNameBuf, TclGetString(objv[0]), 20);
+		TRACE(("%u => call (implementation %s) ", objc, O2S(objPtr)));
+	    } else {
+		fprintf(stdout,
+			"%d: (%u) invoking (using implementation %s) ",
+			iPtr->numLevels, (unsigned)(pc - codePtr->codeStart),
+			O2S(objPtr));
+	    }
+	    for (i = 0;  i < objc;  i++) {
+		if (i < opnd) {
+		    fprintf(stdout, "<");
+		    TclPrintObject(stdout, objv[i], 15);
+		    fprintf(stdout, ">");
+		} else {
+		    TclPrintObject(stdout, objv[i], 15);
+		}
+		fprintf(stdout, " ");
+	    }
+	    fprintf(stdout, "\n");
+	    fflush(stdout);
+	}
+#endif /*TCL_COMPILE_DEBUG*/
+	{
+	    Tcl_Obj *copyPtr = Tcl_NewListObj(objc - opnd + 1, NULL);
+	    register List *listRepPtr = copyPtr->internalRep.twoPtrValue.ptr1;
+	    Tcl_Obj **copyObjv = &listRepPtr->elements;
+	    int i;
+
+	    listRepPtr->elemCount = objc - opnd + 1;
+	    copyObjv[0] = objPtr;
+	    memcpy(copyObjv+1, objv+opnd, sizeof(Tcl_Obj *) * (objc - opnd));
+	    for (i=1 ; i<objc-opnd+1 ; i++) {
+		Tcl_IncrRefCount(copyObjv[i]);
+	    }
+	    objPtr = copyPtr;
+	}
+	bcFramePtr->data.tebc.pc = (char *) pc;
+	iPtr->cmdFramePtr = bcFramePtr;
+	if (iPtr->flags & INTERP_DEBUG_FRAME) {
+	    ArgumentBCEnter(interp, codePtr, TD, pc, objc, objv);
+	}
+	iPtr->ensembleRewrite.sourceObjs = objv;
+	iPtr->ensembleRewrite.numRemovedObjs = opnd;
+	iPtr->ensembleRewrite.numInsertedObjs = 1;
+	DECACHE_STACK_INFO();
+	pc += 6;
+	TEBC_YIELD();
+
+	TclMarkTailcall(interp);
+	TclNRAddCallback(interp, TclClearRootEnsemble, NULL,NULL,NULL,NULL);
+	return TclNREvalObjEx(interp, objPtr, TCL_EVAL_INVOKE, NULL, INT_MIN);
+
     /*
      * -----------------------------------------------------------------
      *	   Start of INST_LOAD instructions.
@@ -2962,7 +3275,7 @@ TEBCresume(
 	varPtr = TclLookupArrayElement(interp, part1Ptr, part2Ptr,
 		TCL_LEAVE_ERR_MSG, "read", 0, 1, arrayPtr, opnd);
 	if (varPtr == NULL) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	cleanup = 1;
@@ -2988,7 +3301,7 @@ TEBCresume(
 		TCL_LEAVE_ERR_MSG, "read", /*createPart1*/0, /*createPart2*/1,
 		&arrayPtr);
 	if (!varPtr) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -3015,7 +3328,7 @@ TEBCresume(
 		part1Ptr, part2Ptr, TCL_LEAVE_ERR_MSG, opnd);
 	CACHE_STACK_INFO();
 	if (!objResultPtr) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
@@ -3032,7 +3345,7 @@ TEBCresume(
      */
 
     {
-	int storeFlags;
+	int storeFlags, len;
 
     case INST_STORE_ARRAY4:
 	opnd = TclGetUInt4AtPtr(pc+1);
@@ -3164,7 +3477,7 @@ TEBCresume(
 	varPtr = TclObjLookupVarEx(interp, objPtr,part2Ptr, TCL_LEAVE_ERR_MSG,
 		"set", /*createPart1*/ 1, /*createPart2*/ 1, &arrayPtr);
 	if (!varPtr) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	cleanup = ((part2Ptr == NULL)? 2 : 3);
@@ -3214,7 +3527,7 @@ TEBCresume(
 	varPtr = TclLookupArrayElement(interp, part1Ptr, part2Ptr,
 		TCL_LEAVE_ERR_MSG, "set", 1, 1, arrayPtr, opnd);
 	if (!varPtr) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	goto doCallPtrSetVar;
@@ -3262,7 +3575,7 @@ TEBCresume(
 		part1Ptr, part2Ptr, valuePtr, storeFlags, opnd);
 	CACHE_STACK_INFO();
 	if (!objResultPtr) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 #ifndef TCL_COMPILE_DEBUG
@@ -3272,6 +3585,171 @@ TEBCresume(
 #endif
 	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
 	NEXT_INST_V(pcAdjustment, cleanup, 1);
+
+    case INST_LAPPEND_LIST:
+	opnd = TclGetUInt4AtPtr(pc+1);
+	valuePtr = OBJ_AT_TOS;
+	varPtr = LOCAL(opnd);
+	cleanup = 1;
+	pcAdjustment = 5;
+	while (TclIsVarLink(varPtr)) {
+	    varPtr = varPtr->value.linkPtr;
+	}
+	TRACE(("%u <- \"%.30s\" => ", opnd, O2S(valuePtr)));
+	if (TclListObjGetElements(interp, valuePtr, &objc, &objv)
+		!= TCL_OK) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+	if (TclIsVarDirectReadable(varPtr)
+		&& TclIsVarDirectWritable(varPtr)) {
+	    goto lappendListDirect;
+	}
+	arrayPtr = NULL;
+	part1Ptr = part2Ptr = NULL;
+	goto lappendListPtr;
+
+    case INST_LAPPEND_LIST_ARRAY:
+	opnd = TclGetUInt4AtPtr(pc+1);
+	valuePtr = OBJ_AT_TOS;
+	part1Ptr = NULL;
+	part2Ptr = OBJ_UNDER_TOS;
+	arrayPtr = LOCAL(opnd);
+	cleanup = 2;
+	pcAdjustment = 5;
+	while (TclIsVarLink(arrayPtr)) {
+	    arrayPtr = arrayPtr->value.linkPtr;
+	}
+	TRACE(("%u \"%.30s\" \"%.30s\" => ",
+		opnd, O2S(part2Ptr), O2S(valuePtr)));
+	if (TclListObjGetElements(interp, valuePtr, &objc, &objv)
+		!= TCL_OK) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+	if (TclIsVarArray(arrayPtr) && !ReadTraced(arrayPtr)
+		&& !WriteTraced(arrayPtr)) {
+	    varPtr = VarHashFindVar(arrayPtr->value.tablePtr, part2Ptr);
+	    if (varPtr && TclIsVarDirectReadable(varPtr)
+		    && TclIsVarDirectWritable(varPtr)) {
+		goto lappendListDirect;
+	    }
+	}
+	varPtr = TclLookupArrayElement(interp, part1Ptr, part2Ptr,
+		TCL_LEAVE_ERR_MSG, "set", 1, 1, arrayPtr, opnd);
+	if (varPtr == NULL) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+	goto lappendListPtr;
+
+    case INST_LAPPEND_LIST_ARRAY_STK:
+	pcAdjustment = 1;
+	cleanup = 3;
+	valuePtr = OBJ_AT_TOS;
+	part2Ptr = OBJ_UNDER_TOS;	/* element name */
+	part1Ptr = OBJ_AT_DEPTH(2);	/* array name */
+	TRACE(("\"%.30s(%.30s)\" \"%.30s\" => ",
+		O2S(part1Ptr), O2S(part2Ptr), O2S(valuePtr)));
+	goto lappendList;
+
+    case INST_LAPPEND_LIST_STK:
+	pcAdjustment = 1;
+	cleanup = 2;
+	valuePtr = OBJ_AT_TOS;
+	part2Ptr = NULL;
+	part1Ptr = OBJ_UNDER_TOS;	/* variable name */
+	TRACE(("\"%.30s\" \"%.30s\" => ", O2S(part1Ptr), O2S(valuePtr)));
+	goto lappendList;
+
+    lappendListDirect:
+	objResultPtr = varPtr->value.objPtr;
+	if (TclListObjLength(interp, objResultPtr, &len) != TCL_OK) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+	if (Tcl_IsShared(objResultPtr)) {
+	    Tcl_Obj *newValue = Tcl_DuplicateObj(objResultPtr);
+
+	    TclDecrRefCount(objResultPtr);
+	    varPtr->value.objPtr = objResultPtr = newValue;
+	    Tcl_IncrRefCount(newValue);
+	}
+	if (Tcl_ListObjReplace(interp, objResultPtr, len, 0, objc, objv)
+		!= TCL_OK) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
+	NEXT_INST_V(pcAdjustment, cleanup, 1);
+
+    lappendList:
+	opnd = -1;
+	if (TclListObjGetElements(interp, valuePtr, &objc, &objv)
+		!= TCL_OK) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+	DECACHE_STACK_INFO();
+	varPtr = TclObjLookupVarEx(interp, part1Ptr, part2Ptr,
+		TCL_LEAVE_ERR_MSG, "set", 1, 1, &arrayPtr);
+	CACHE_STACK_INFO();
+	if (!varPtr) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+
+    lappendListPtr:
+	if (TclIsVarInHash(varPtr)) {
+	    VarHashRefCount(varPtr)++;
+	}
+	if (arrayPtr && TclIsVarInHash(arrayPtr)) {
+	    VarHashRefCount(arrayPtr)++;
+	}
+	DECACHE_STACK_INFO();
+	objResultPtr = TclPtrGetVar(interp, varPtr, arrayPtr,
+		part1Ptr, part2Ptr, TCL_LEAVE_ERR_MSG, opnd);
+	CACHE_STACK_INFO();
+	if (TclIsVarInHash(varPtr)) {
+	    VarHashRefCount(varPtr)--;
+	}
+	if (arrayPtr && TclIsVarInHash(arrayPtr)) {
+	    VarHashRefCount(arrayPtr)--;
+	}
+
+	{
+	    int createdNewObj = 0;
+
+	    if (!objResultPtr) {
+		objResultPtr = valuePtr;
+	    } else if (TclListObjLength(interp, objResultPtr, &len)!=TCL_OK) {
+		TRACE_ERROR(interp);
+		goto gotError;
+	    } else {
+		if (Tcl_IsShared(objResultPtr)) {
+		    objResultPtr = Tcl_DuplicateObj(objResultPtr);
+		    createdNewObj = 1;
+		}
+		if (Tcl_ListObjReplace(interp, objResultPtr, len,0, objc,objv)
+			!= TCL_OK) {
+		    goto errorInLappendListPtr;
+		}
+	    }
+	    DECACHE_STACK_INFO();
+	    objResultPtr = TclPtrSetVar(interp, varPtr, arrayPtr, part1Ptr,
+		    part2Ptr, objResultPtr, TCL_LEAVE_ERR_MSG, opnd);
+	    CACHE_STACK_INFO();
+	    if (!objResultPtr) {
+	    errorInLappendListPtr:
+		if (createdNewObj) {
+		    TclDecrRefCount(objResultPtr);
+		}
+		TRACE_ERROR(interp);
+		goto gotError;
+	    }
+	}
+	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
+	NEXT_INST_V(pcAdjustment, cleanup, 1);
     }
 
     /*
@@ -3288,7 +3766,7 @@ TEBCresume(
 
     {
 	Tcl_Obj *incrPtr;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	Tcl_WideInt w;
 #endif
 	long increment;
@@ -3337,9 +3815,11 @@ TEBCresume(
 	varPtr = TclObjLookupVarEx(interp, objPtr, part2Ptr,
 		TCL_LEAVE_ERR_MSG, "read", 1, 1, &arrayPtr);
 	if (!varPtr) {
-	    Tcl_AddObjErrorInfo(interp,
-		    "\n    (reading value of variable to increment)", -1);
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    DECACHE_STACK_INFO();
+	    Tcl_AddErrorInfo(interp,
+		    "\n    (reading value of variable to increment)");
+	    CACHE_STACK_INFO();
+	    TRACE_ERROR(interp);
 	    Tcl_DecrRefCount(incrPtr);
 	    goto gotError;
 	}
@@ -3365,7 +3845,7 @@ TEBCresume(
 	varPtr = TclLookupArrayElement(interp, part1Ptr, part2Ptr,
 		TCL_LEAVE_ERR_MSG, "read", 1, 1, arrayPtr, opnd);
 	if (!varPtr) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    Tcl_DecrRefCount(incrPtr);
 	    goto gotError;
 	}
@@ -3410,7 +3890,7 @@ TEBCresume(
 			}
 			goto doneIncr;
 		    }
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 		    w = (Tcl_WideInt)augend;
 
 		    TRACE(("%u %ld => ", opnd, increment));
@@ -3432,7 +3912,7 @@ TEBCresume(
 		    goto doneIncr;
 #endif
 		}	/* end if (type == TCL_NUMBER_LONG) */
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 		if (type == TCL_NUMBER_WIDE) {
 		    Tcl_WideInt sum;
 
@@ -3477,8 +3957,7 @@ TEBCresume(
 	    TclNewLongObj(incrPtr, increment);
 	    if (TclIncrObj(interp, objResultPtr, incrPtr) != TCL_OK) {
 		Tcl_DecrRefCount(incrPtr);
-		TRACE_APPEND(("ERROR: %.30s\n",
-			O2S(Tcl_GetObjResult(interp))));
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	    Tcl_DecrRefCount(incrPtr);
@@ -3500,7 +3979,7 @@ TEBCresume(
 	arrayPtr = NULL;
 	part1Ptr = part2Ptr = NULL;
 	cleanup = 0;
-	TRACE(("%u %ld => ", opnd, increment));
+	TRACE(("%u %s => ", opnd, Tcl_GetString(incrPtr)));
 
     doIncrVar:
 	if (TclIsVarDirectModifyable2(varPtr, arrayPtr)) {
@@ -3515,8 +3994,7 @@ TEBCresume(
 	    }
 	    if (TclIncrObj(interp, objResultPtr, incrPtr) != TCL_OK) {
 		Tcl_DecrRefCount(incrPtr);
-		TRACE_APPEND(("ERROR: %.30s\n",
-			O2S(Tcl_GetObjResult(interp))));
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	    Tcl_DecrRefCount(incrPtr);
@@ -3527,8 +4005,7 @@ TEBCresume(
 	    CACHE_STACK_INFO();
 	    Tcl_DecrRefCount(incrPtr);
 	    if (objResultPtr == NULL) {
-		TRACE_APPEND(("ERROR: %.30s\n",
-			O2S(Tcl_GetObjResult(interp))));
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	}
@@ -3549,6 +4026,8 @@ TEBCresume(
      */
 
     case INST_EXIST_SCALAR:
+	cleanup = 0;
+	pcAdjustment = 5;
 	opnd = TclGetUInt4AtPtr(pc+1);
 	varPtr = LOCAL(opnd);
 	while (TclIsVarLink(varPtr)) {
@@ -3565,16 +4044,11 @@ TEBCresume(
 		varPtr = NULL;
 	    }
 	}
-
-	/*
-	 * Tricky! Arrays always exist.
-	 */
-
-	objResultPtr = TCONST(!varPtr || TclIsVarUndefined(varPtr) ? 0 : 1);
-	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
-	NEXT_INST_F(5, 0, 1);
+	goto afterExistsPeephole;
 
     case INST_EXIST_ARRAY:
+	cleanup = 1;
+	pcAdjustment = 5;
 	opnd = TclGetUInt4AtPtr(pc+1);
 	part2Ptr = OBJ_AT_TOS;
 	arrayPtr = LOCAL(opnd);
@@ -3585,7 +4059,7 @@ TEBCresume(
 	if (TclIsVarArray(arrayPtr) && !ReadTraced(arrayPtr)) {
 	    varPtr = VarHashFindVar(arrayPtr->value.tablePtr, part2Ptr);
 	    if (!varPtr || !ReadTraced(varPtr)) {
-		goto doneExistArray;
+		goto afterExistsPeephole;
 	    }
 	}
 	varPtr = TclLookupArrayElement(interp, NULL, part2Ptr, 0, "access",
@@ -3602,13 +4076,11 @@ TEBCresume(
 		varPtr = NULL;
 	    }
 	}
-    doneExistArray:
-	objResultPtr = TCONST(!varPtr || TclIsVarUndefined(varPtr) ? 0 : 1);
-	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
-	NEXT_INST_F(5, 1, 1);
+	goto afterExistsPeephole;
 
     case INST_EXIST_ARRAY_STK:
 	cleanup = 2;
+	pcAdjustment = 1;
 	part2Ptr = OBJ_AT_TOS;		/* element name */
 	part1Ptr = OBJ_UNDER_TOS;	/* array name */
 	TRACE(("\"%.30s(%.30s)\" => ", O2S(part1Ptr), O2S(part2Ptr)));
@@ -3616,6 +4088,7 @@ TEBCresume(
 
     case INST_EXIST_STK:
 	cleanup = 1;
+	pcAdjustment = 1;
 	part2Ptr = NULL;
 	part1Ptr = OBJ_AT_TOS;		/* variable name */
 	TRACE(("\"%.30s\" => ", O2S(part1Ptr)));
@@ -3635,9 +4108,17 @@ TEBCresume(
 		varPtr = NULL;
 	    }
 	}
-	objResultPtr = TCONST(!varPtr || TclIsVarUndefined(varPtr) ? 0 : 1);
-	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
-	NEXT_INST_V(1, cleanup, 1);
+
+	/*
+	 * Peep-hole optimisation: if you're about to jump, do jump from here.
+	 */
+
+    afterExistsPeephole: {
+	int found = (varPtr && !TclIsVarUndefined(varPtr));
+
+	TRACE_APPEND(("%d\n", found ? 1 : 0));
+	JUMP_PEEPHOLE_V(found, pcAdjustment, cleanup);
+    }
 
     /*
      *	   End of INST_EXIST instructions.
@@ -3655,7 +4136,7 @@ TEBCresume(
 	while (TclIsVarLink(varPtr)) {
 	    varPtr = varPtr->value.linkPtr;
 	}
-	TRACE(("%s %u\n", (flags?"normal":"noerr"), opnd));
+	TRACE(("%s %u => ", (flags ? "normal" : "noerr"), opnd));
 	if (TclIsVarDirectUnsettable(varPtr) && !TclIsVarInHash(varPtr)) {
 	    /*
 	     * No errors, no traces, no searches: just make the variable cease
@@ -3668,6 +4149,7 @@ TEBCresume(
 		goto slowUnsetScalar;
 	    }
 	    varPtr->value.objPtr = NULL;
+	    TRACE_APPEND(("OK\n"));
 	    NEXT_INST_F(6, 0, 0);
 	}
 
@@ -3688,7 +4170,7 @@ TEBCresume(
 	while (TclIsVarLink(arrayPtr)) {
 	    arrayPtr = arrayPtr->value.linkPtr;
 	}
-	TRACE(("%s %u \"%.30s\"\n",
+	TRACE(("%s %u \"%.30s\" => ",
 		(flags ? "normal" : "noerr"), opnd, O2S(part2Ptr)));
 	if (TclIsVarArray(arrayPtr) && !UnsetTraced(arrayPtr)) {
 	    varPtr = VarHashFindVar(arrayPtr->value.tablePtr, part2Ptr);
@@ -3704,12 +4186,14 @@ TEBCresume(
 		    goto slowUnsetArray;
 		}
 		varPtr->value.objPtr = NULL;
+		TRACE_APPEND(("OK\n"));
 		NEXT_INST_F(6, 1, 0);
 	    } else if (!varPtr && !(flags & TCL_LEAVE_ERR_MSG)) {
 		/*
 		 * Don't need to do anything here.
 		 */
 
+		TRACE_APPEND(("OK\n"));
 		NEXT_INST_F(6, 1, 0);
 	    }
 	}
@@ -3733,7 +4217,7 @@ TEBCresume(
 	cleanup = 2;
 	part2Ptr = OBJ_AT_TOS;		/* element name */
 	part1Ptr = OBJ_UNDER_TOS;	/* array name */
-	TRACE(("%s \"%.30s(%.30s)\"\n", (flags?"normal":"noerr"),
+	TRACE(("%s \"%.30s(%.30s)\" => ", (flags ? "normal" : "noerr"),
 		O2S(part1Ptr), O2S(part2Ptr)));
 	goto doUnsetStk;
 
@@ -3742,7 +4226,8 @@ TEBCresume(
 	cleanup = 1;
 	part2Ptr = NULL;
 	part1Ptr = OBJ_AT_TOS;		/* variable name */
-	TRACE(("%s \"%.30s\"\n", (flags?"normal":"noerr"), O2S(part1Ptr)));
+	TRACE(("%s \"%.30s\" => ", (flags ? "normal" : "noerr"),
+		O2S(part1Ptr)));
 
     doUnsetStk:
 	DECACHE_STACK_INFO();
@@ -3751,11 +4236,12 @@ TEBCresume(
 	    goto errorInUnset;
 	}
 	CACHE_STACK_INFO();
+	TRACE_APPEND(("OK\n"));
 	NEXT_INST_V(2, cleanup, 0);
 
     errorInUnset:
 	CACHE_STACK_INFO();
-	TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	TRACE_ERROR(interp);
 	goto gotError;
 
 	/*
@@ -3764,7 +4250,7 @@ TEBCresume(
 
     case INST_DICT_DONE:
 	opnd = TclGetUInt4AtPtr(pc+1);
-	TRACE(("%u\n", opnd));
+	TRACE(("%u => OK\n", opnd));
 	varPtr = LOCAL(opnd);
 	while (TclIsVarLink(varPtr)) {
 	    varPtr = varPtr->value.linkPtr;
@@ -3785,6 +4271,104 @@ TEBCresume(
     /*
      *	   End of INST_UNSET instructions.
      * -----------------------------------------------------------------
+     *	   Start of INST_ARRAY instructions.
+     */
+
+    case INST_ARRAY_EXISTS_IMM:
+	opnd = TclGetUInt4AtPtr(pc+1);
+	pcAdjustment = 5;
+	cleanup = 0;
+	part1Ptr = NULL;
+	arrayPtr = NULL;
+	TRACE(("%u => ", opnd));
+	varPtr = LOCAL(opnd);
+	while (TclIsVarLink(varPtr)) {
+	    varPtr = varPtr->value.linkPtr;
+	}
+	goto doArrayExists;
+    case INST_ARRAY_EXISTS_STK:
+	opnd = -1;
+	pcAdjustment = 1;
+	cleanup = 1;
+	part1Ptr = OBJ_AT_TOS;
+	TRACE(("\"%.30s\" => ", O2S(part1Ptr)));
+	varPtr = TclObjLookupVarEx(interp, part1Ptr, NULL, 0, NULL,
+		/*createPart1*/0, /*createPart2*/0, &arrayPtr);
+    doArrayExists:
+	if (varPtr && (varPtr->flags & VAR_TRACED_ARRAY)
+		&& (TclIsVarArray(varPtr) || TclIsVarUndefined(varPtr))) {
+	    DECACHE_STACK_INFO();
+	    result = TclObjCallVarTraces(iPtr, arrayPtr, varPtr, part1Ptr,
+		    NULL, (TCL_LEAVE_ERR_MSG|TCL_NAMESPACE_ONLY|
+		    TCL_GLOBAL_ONLY|TCL_TRACE_ARRAY), 1, opnd);
+	    CACHE_STACK_INFO();
+	    if (result == TCL_ERROR) {
+		TRACE_ERROR(interp);
+		goto gotError;
+	    }
+	}
+	if (varPtr && TclIsVarArray(varPtr) && !TclIsVarUndefined(varPtr)) {
+	    objResultPtr = TCONST(1);
+	} else {
+	    objResultPtr = TCONST(0);
+	}
+	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
+	NEXT_INST_V(pcAdjustment, cleanup, 1);
+
+    case INST_ARRAY_MAKE_IMM:
+	opnd = TclGetUInt4AtPtr(pc+1);
+	pcAdjustment = 5;
+	cleanup = 0;
+	part1Ptr = NULL;
+	arrayPtr = NULL;
+	TRACE(("%u => ", opnd));
+	varPtr = LOCAL(opnd);
+	while (TclIsVarLink(varPtr)) {
+	    varPtr = varPtr->value.linkPtr;
+	}
+	goto doArrayMake;
+    case INST_ARRAY_MAKE_STK:
+	opnd = -1;
+	pcAdjustment = 1;
+	cleanup = 1;
+	part1Ptr = OBJ_AT_TOS;
+	TRACE(("\"%.30s\" => ", O2S(part1Ptr)));
+	varPtr = TclObjLookupVarEx(interp, part1Ptr, NULL, TCL_LEAVE_ERR_MSG,
+		"set", /*createPart1*/1, /*createPart2*/0, &arrayPtr);
+	if (varPtr == NULL) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+    doArrayMake:
+	if (varPtr && !TclIsVarArray(varPtr)) {
+	    if (TclIsVarArrayElement(varPtr) || !TclIsVarUndefined(varPtr)) {
+		/*
+		 * Either an array element, or a scalar: lose!
+		 */
+
+		TclObjVarErrMsg(interp, part1Ptr, NULL, "array set",
+			"variable isn't array", opnd);
+		DECACHE_STACK_INFO();
+		Tcl_SetErrorCode(interp, "TCL", "WRITE", "ARRAY", NULL);
+		CACHE_STACK_INFO();
+		TRACE_ERROR(interp);
+		goto gotError;
+	    }
+	    TclSetVarArray(varPtr);
+	    varPtr->value.tablePtr = ckalloc(sizeof(TclVarHashTable));
+	    TclInitVarHashTable(varPtr->value.tablePtr,
+		    TclGetVarNsPtr(varPtr));
+#ifdef TCL_COMPILE_DEBUG
+	    TRACE_APPEND(("done\n"));
+	} else {
+	    TRACE_APPEND(("nothing to do\n"));
+#endif
+	}
+	NEXT_INST_V(pcAdjustment, cleanup, 0);
+
+    /*
+     *	   End of INST_ARRAY instructions.
+     * -----------------------------------------------------------------
      *	   Start of variable linking instructions.
      */
 
@@ -3795,9 +4379,11 @@ TEBCresume(
 	Namespace *savedNsPtr;
 
     case INST_UPVAR:
-	TRACE_WITH_OBJ(("upvar "), OBJ_UNDER_TOS);
+	TRACE(("%d %.30s %.30s => ", TclGetInt4AtPtr(pc+1),
+		O2S(OBJ_UNDER_TOS), O2S(OBJ_AT_TOS)));
 
 	if (TclObjGetFrame(interp, OBJ_UNDER_TOS, &framePtr) == -1) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -3812,13 +4398,16 @@ TEBCresume(
 		/*createPart2*/ 1, &varPtr);
 	iPtr->varFramePtr = savedFramePtr;
 	if (!otherPtr) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	goto doLinkVars;
 
     case INST_NSUPVAR:
-	TRACE_WITH_OBJ(("nsupvar "), OBJ_UNDER_TOS);
+	TRACE(("%d %.30s %.30s => ", TclGetInt4AtPtr(pc+1),
+		O2S(OBJ_UNDER_TOS), O2S(OBJ_AT_TOS)));
 	if (TclGetNamespaceFromObj(interp, OBJ_UNDER_TOS, &nsPtr) != TCL_OK) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -3833,16 +4422,18 @@ TEBCresume(
 		/*createPart1*/ 1, /*createPart2*/ 1, &varPtr);
 	iPtr->varFramePtr->nsPtr = savedNsPtr;
 	if (!otherPtr) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	goto doLinkVars;
 
     case INST_VARIABLE:
-	TRACE(("variable "));
+	TRACE(("%d, %.30s => ", TclGetInt4AtPtr(pc+1), O2S(OBJ_AT_TOS)));
 	otherPtr = TclObjLookupVarEx(interp, OBJ_AT_TOS, NULL,
 		(TCL_NAMESPACE_ONLY | TCL_LEAVE_ERR_MSG), "access",
 		/*createPart1*/ 1, /*createPart2*/ 1, &varPtr);
 	if (!otherPtr) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -3860,7 +4451,7 @@ TEBCresume(
 	 * if there are no errors; otherwise, let it handle the case.
 	 */
 
-	opnd = TclGetInt4AtPtr(pc+1);;
+	opnd = TclGetInt4AtPtr(pc+1);
 	varPtr = LOCAL(opnd);
 	if ((varPtr != otherPtr) && !TclIsVarTraced(varPtr)
 		&& (TclIsVarUndefined(varPtr) || TclIsVarLink(varPtr))) {
@@ -3872,6 +4463,7 @@ TEBCresume(
 		Var *linkPtr = varPtr->value.linkPtr;
 
 		if (linkPtr == otherPtr) {
+		    TRACE_APPEND(("already linked\n"));
 		    NEXT_INST_F(5, 1, 0);
 		}
 		if (TclIsVarInHash(linkPtr)) {
@@ -3888,6 +4480,7 @@ TEBCresume(
 	    }
 	} else if (TclPtrObjMakeUpvar(interp, otherPtr, NULL, 0,
 		opnd) != TCL_OK) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -3896,6 +4489,7 @@ TEBCresume(
 	 * variables - and [variable] did not push it at all.
 	 */
 
+	TRACE_APPEND(("link made\n"));
 	NEXT_INST_F(5, 1, 0);
     }
 
@@ -3942,32 +4536,30 @@ TEBCresume(
 
     doCondJump:
 	valuePtr = OBJ_AT_TOS;
+	TRACE(("%d => ", jmpOffset[
+		(*pc==INST_JUMP_FALSE1 || *pc==INST_JUMP_FALSE4) ? 0 : 1]));
 
 	/* TODO - check claim that taking address of b harms performance */
 	/* TODO - consider optimization search for constants */
 	if (TclGetBooleanFromObj(interp, valuePtr, &b) != TCL_OK) {
-	    TRACE_WITH_OBJ(("%d => ERROR: ", jmpOffset[
-		    ((*pc == INST_JUMP_FALSE1) || (*pc == INST_JUMP_FALSE4))
-		    ? 0 : 1]), Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
 #ifdef TCL_COMPILE_DEBUG
 	if (b) {
 	    if ((*pc == INST_JUMP_TRUE1) || (*pc == INST_JUMP_TRUE4)) {
-		TRACE(("%d => %.20s true, new pc %u\n", jmpOffset[1],
-			O2S(valuePtr),
+		TRACE_APPEND(("%.20s true, new pc %u\n", O2S(valuePtr),
 			(unsigned)(pc + jmpOffset[1] - codePtr->codeStart)));
 	    } else {
-		TRACE(("%d => %.20s true\n", jmpOffset[0], O2S(valuePtr)));
+		TRACE_APPEND(("%.20s true\n", O2S(valuePtr)));
 	    }
 	} else {
 	    if ((*pc == INST_JUMP_TRUE1) || (*pc == INST_JUMP_TRUE4)) {
-		TRACE(("%d => %.20s false\n", jmpOffset[0], O2S(valuePtr)));
+		TRACE_APPEND(("%.20s false\n", O2S(valuePtr)));
 	    } else {
-		TRACE(("%d => %.20s false, new pc %u\n", jmpOffset[0],
-			O2S(valuePtr),
-			(unsigned)(pc + jmpOffset[1] - codePtr->codeStart)));
+		TRACE_APPEND(("%.20s false, new pc %u\n", O2S(valuePtr),
+			(unsigned)(pc + jmpOffset[0] - codePtr->codeStart)));
 	    }
 	}
 #endif
@@ -3985,7 +4577,7 @@ TEBCresume(
 
 	opnd = TclGetInt4AtPtr(pc+1);
 	jtPtr = (JumptableInfo *) codePtr->auxDataArrayPtr[opnd].clientData;
-	TRACE(("%d => %.20s ", opnd, O2S(OBJ_AT_TOS)));
+	TRACE(("%d \"%.20s\" => ", opnd, O2S(OBJ_AT_TOS)));
 	hPtr = Tcl_FindHashEntry(&jtPtr->hashTable, TclGetString(OBJ_AT_TOS));
 	if (hPtr != NULL) {
 	    int jumpOffset = PTR2INT(Tcl_GetHashValue(hPtr));
@@ -4045,6 +4637,377 @@ TEBCresume(
 
     /*
      * -----------------------------------------------------------------
+     *	   Start of general introspector instructions.
+     */
+
+    case INST_NS_CURRENT: {
+	Namespace *currNsPtr = (Namespace *) TclGetCurrentNamespace(interp);
+
+	if (currNsPtr == (Namespace *) TclGetGlobalNamespace(interp)) {
+	    TclNewLiteralStringObj(objResultPtr, "::");
+	} else {
+	    TclNewStringObj(objResultPtr, currNsPtr->fullName,
+		    strlen(currNsPtr->fullName));
+	}
+	TRACE_WITH_OBJ(("=> "), objResultPtr);
+	NEXT_INST_F(1, 0, 1);
+    }
+    case INST_COROUTINE_NAME: {
+	CoroutineData *corPtr = iPtr->execEnvPtr->corPtr;
+
+	TclNewObj(objResultPtr);
+	if (corPtr && !(corPtr->cmdPtr->flags & CMD_IS_DELETED)) {
+	    Tcl_GetCommandFullName(interp, (Tcl_Command) corPtr->cmdPtr,
+		    objResultPtr);
+	}
+	TRACE_WITH_OBJ(("=> "), objResultPtr);
+	NEXT_INST_F(1, 0, 1);
+    }
+    case INST_INFO_LEVEL_NUM:
+	TclNewIntObj(objResultPtr, iPtr->varFramePtr->level);
+	TRACE_WITH_OBJ(("=> "), objResultPtr);
+	NEXT_INST_F(1, 0, 1);
+    case INST_INFO_LEVEL_ARGS: {
+	int level;
+	register CallFrame *framePtr = iPtr->varFramePtr;
+	register CallFrame *rootFramePtr = iPtr->rootFramePtr;
+
+	TRACE(("\"%.30s\" => ", O2S(OBJ_AT_TOS)));
+	if (TclGetIntFromObj(interp, OBJ_AT_TOS, &level) != TCL_OK) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+	if (level <= 0) {
+	    level += framePtr->level;
+	}
+	for (; (framePtr->level!=level) && (framePtr!=rootFramePtr) ;
+		framePtr = framePtr->callerVarPtr) {
+	    /* Empty loop body */
+	}
+	if (framePtr == rootFramePtr) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "bad level \"%s\"", TclGetString(OBJ_AT_TOS)));
+	    TRACE_ERROR(interp);
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "STACK_LEVEL",
+		    TclGetString(OBJ_AT_TOS), NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
+	}
+	objResultPtr = Tcl_NewListObj(framePtr->objc, framePtr->objv);
+	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
+	NEXT_INST_F(1, 1, 1);
+    }
+    {
+	Tcl_Command cmd, origCmd;
+
+    case INST_RESOLVE_COMMAND:
+	cmd = Tcl_GetCommandFromObj(interp, OBJ_AT_TOS);
+	TclNewObj(objResultPtr);
+	if (cmd != NULL) {
+	    Tcl_GetCommandFullName(interp, cmd, objResultPtr);
+	}
+	TRACE_WITH_OBJ(("\"%.20s\" => ", O2S(OBJ_AT_TOS)), objResultPtr);
+	NEXT_INST_F(1, 1, 1);
+
+    case INST_ORIGIN_COMMAND:
+	TRACE(("\"%.30s\" => ", O2S(OBJ_AT_TOS)));
+	cmd = Tcl_GetCommandFromObj(interp, OBJ_AT_TOS);
+	if (cmd == NULL) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "invalid command name \"%s\"", TclGetString(OBJ_AT_TOS)));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COMMAND",
+		    TclGetString(OBJ_AT_TOS), NULL);
+	    CACHE_STACK_INFO();
+	    TRACE_APPEND(("ERROR: not command\n"));
+	    goto gotError;
+	}
+	origCmd = TclGetOriginalCommand(cmd);
+	if (origCmd == NULL) {
+	    origCmd = cmd;
+	}
+	TclNewObj(objResultPtr);
+	Tcl_GetCommandFullName(interp, origCmd, objResultPtr);
+	TRACE_APPEND(("\"%.30s\"", O2S(OBJ_AT_TOS)));
+	NEXT_INST_F(1, 1, 1);
+    }
+
+    /*
+     * -----------------------------------------------------------------
+     *	   Start of TclOO support instructions.
+     */
+
+    {
+	Object *oPtr;
+	CallFrame *framePtr;
+	CallContext *contextPtr;
+	int skip, newDepth;
+
+    case INST_TCLOO_SELF:
+	framePtr = iPtr->varFramePtr;
+	if (framePtr == NULL ||
+		!(framePtr->isProcCallFrame & FRAME_IS_METHOD)) {
+	    TRACE(("=> ERROR: no TclOO call context\n"));
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "self may only be called from inside a method",
+		    -1));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
+	}
+	contextPtr = framePtr->clientData;
+
+	/*
+	 * Call out to get the name; it's expensive to compute but cached.
+	 */
+
+	objResultPtr = TclOOObjectName(interp, contextPtr->oPtr);
+	TRACE_WITH_OBJ(("=> "), objResultPtr);
+	NEXT_INST_F(1, 0, 1);
+
+    case INST_TCLOO_NEXT_CLASS:
+	opnd = TclGetUInt1AtPtr(pc+1);
+	framePtr = iPtr->varFramePtr;
+	valuePtr = OBJ_AT_DEPTH(opnd - 2);
+	objv = &OBJ_AT_DEPTH(opnd - 1);
+	skip = 2;
+	TRACE(("%d => ", opnd));
+	if (framePtr == NULL ||
+		!(framePtr->isProcCallFrame & FRAME_IS_METHOD)) {
+	    TRACE_APPEND(("ERROR: no TclOO call context\n"));
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "nextto may only be called from inside a method",
+		    -1));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
+	}
+	contextPtr = framePtr->clientData;
+
+	oPtr = (Object *) Tcl_GetObjectFromObj(interp, valuePtr);
+	if (oPtr == NULL) {
+	    TRACE_APPEND(("ERROR: \"%.30s\" not object\n", O2S(valuePtr)));
+	    goto gotError;
+	} else {
+	    Class *classPtr = oPtr->classPtr;
+	    struct MInvoke *miPtr;
+	    int i;
+	    const char *methodType;
+
+	    if (classPtr == NULL) {
+		TRACE_APPEND(("ERROR: \"%.30s\" not class\n", O2S(valuePtr)));
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"\"%s\" is not a class", TclGetString(valuePtr)));
+		DECACHE_STACK_INFO();
+		Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_REQUIRED", NULL);
+		CACHE_STACK_INFO();
+		goto gotError;
+	    }
+
+	    for (i=contextPtr->index+1 ; i<contextPtr->callPtr->numChain ; i++) {
+		miPtr = contextPtr->callPtr->chain + i;
+		if (!miPtr->isFilter &&
+			miPtr->mPtr->declaringClassPtr == classPtr) {
+		    newDepth = i;
+#ifdef TCL_COMPILE_DEBUG
+		    if (tclTraceExec >= 2) {
+			if (traceInstructions) {
+			    strncpy(cmdNameBuf, TclGetString(objv[0]), 20);
+			} else {
+			    fprintf(stdout, "%d: (%u) invoking ",
+				    iPtr->numLevels,
+				    (unsigned)(pc - codePtr->codeStart));
+			}
+			for (i = 0;  i < opnd;  i++) {
+			    TclPrintObject(stdout, objv[i], 15);
+			    fprintf(stdout, " ");
+			}
+			fprintf(stdout, "\n");
+			fflush(stdout);
+		    }
+#endif /*TCL_COMPILE_DEBUG*/
+		    goto doInvokeNext;
+		}
+	    }
+
+	    if (contextPtr->callPtr->flags & CONSTRUCTOR) {
+		methodType = "constructor";
+	    } else if (contextPtr->callPtr->flags & DESTRUCTOR) {
+		methodType = "destructor";
+	    } else {
+		methodType = "method";
+	    }
+
+	    TRACE_APPEND(("ERROR: \"%.30s\" not on reachable chain\n",
+		    O2S(valuePtr)));
+	    for (i=contextPtr->index ; i>=0 ; i--) {
+		miPtr = contextPtr->callPtr->chain + i;
+		if (miPtr->isFilter
+			|| miPtr->mPtr->declaringClassPtr != classPtr) {
+		    continue;
+		}
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"%s implementation by \"%s\" not reachable from here",
+			methodType, TclGetString(valuePtr)));
+		DECACHE_STACK_INFO();
+		Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_REACHABLE",
+			NULL);
+		CACHE_STACK_INFO();
+		goto gotError;
+	    }
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "%s has no non-filter implementation by \"%s\"",
+		    methodType, TclGetString(valuePtr)));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_THERE", NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
+	}
+
+    case INST_TCLOO_NEXT:
+	opnd = TclGetUInt1AtPtr(pc+1);
+	objv = &OBJ_AT_DEPTH(opnd - 1);
+	framePtr = iPtr->varFramePtr;
+	skip = 1;
+	TRACE(("%d => ", opnd));
+	if (framePtr == NULL ||
+		!(framePtr->isProcCallFrame & FRAME_IS_METHOD)) {
+	    TRACE_APPEND(("ERROR: no TclOO call context\n"));
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "next may only be called from inside a method",
+		    -1));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
+	}
+	contextPtr = framePtr->clientData;
+
+	newDepth = contextPtr->index + 1;
+	if (newDepth >= contextPtr->callPtr->numChain) {
+	    /*
+	     * We're at the end of the chain; generate an error message unless
+	     * the interpreter is being torn down, in which case we might be
+	     * getting here because of methods/destructors doing a [next] (or
+	     * equivalent) unexpectedly.
+	     */
+
+	    const char *methodType;
+
+	    if (contextPtr->callPtr->flags & CONSTRUCTOR) {
+		methodType = "constructor";
+	    } else if (contextPtr->callPtr->flags & DESTRUCTOR) {
+		methodType = "destructor";
+	    } else {
+		methodType = "method";
+	    }
+
+	    TRACE_APPEND(("ERROR: no TclOO next impl\n"));
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "no next %s implementation", methodType));
+	    DECACHE_STACK_INFO();
+	    Tcl_SetErrorCode(interp, "TCL", "OO", "NOTHING_NEXT", NULL);
+	    CACHE_STACK_INFO();
+	    goto gotError;
+#ifdef TCL_COMPILE_DEBUG
+	} else if (tclTraceExec >= 2) {
+	    int i;
+
+	    if (traceInstructions) {
+		strncpy(cmdNameBuf, TclGetString(objv[0]), 20);
+	    } else {
+		fprintf(stdout, "%d: (%u) invoking ",
+			iPtr->numLevels, (unsigned)(pc - codePtr->codeStart));
+	    }
+	    for (i = 0;  i < opnd;  i++) {
+		TclPrintObject(stdout, objv[i], 15);
+		fprintf(stdout, " ");
+	    }
+	    fprintf(stdout, "\n");
+	    fflush(stdout);
+#endif /*TCL_COMPILE_DEBUG*/
+	}
+
+    doInvokeNext:
+	bcFramePtr->data.tebc.pc = (char *) pc;
+	iPtr->cmdFramePtr = bcFramePtr;
+
+	if (iPtr->flags & INTERP_DEBUG_FRAME) {
+	    ArgumentBCEnter(interp, codePtr, TD, pc, opnd, objv);
+	}
+
+	pcAdjustment = 2;
+	cleanup = opnd;
+	DECACHE_STACK_INFO();
+	iPtr->varFramePtr = framePtr->callerVarPtr;
+	pc += pcAdjustment;
+	TEBC_YIELD();
+
+	TclPushTailcallPoint(interp);
+	oPtr = contextPtr->oPtr;
+	if (oPtr->flags & FILTER_HANDLING) {
+	    TclNRAddCallback(interp, FinalizeOONextFilter,
+		    framePtr, contextPtr, INT2PTR(contextPtr->index),
+		    INT2PTR(contextPtr->skip));
+	} else {
+	    TclNRAddCallback(interp, FinalizeOONext,
+		    framePtr, contextPtr, INT2PTR(contextPtr->index),
+		    INT2PTR(contextPtr->skip));
+	}
+	contextPtr->skip = skip;
+	contextPtr->index = newDepth;
+	if (contextPtr->callPtr->chain[newDepth].isFilter
+		|| contextPtr->callPtr->flags & FILTER_HANDLING) {
+	    oPtr->flags |= FILTER_HANDLING;
+	} else {
+	    oPtr->flags &= ~FILTER_HANDLING;
+	}
+
+	{
+	    register Method *const mPtr =
+		    contextPtr->callPtr->chain[newDepth].mPtr;
+
+	    return mPtr->typePtr->callProc(mPtr->clientData, interp,
+		    (Tcl_ObjectContext) contextPtr, opnd, objv);
+	}
+
+    case INST_TCLOO_IS_OBJECT:
+	oPtr = (Object *) Tcl_GetObjectFromObj(interp, OBJ_AT_TOS);
+	objResultPtr = TCONST(oPtr != NULL ? 1 : 0);
+	TRACE_WITH_OBJ(("%.30s => ", O2S(OBJ_AT_TOS)), objResultPtr);
+	NEXT_INST_F(1, 1, 1);
+    case INST_TCLOO_CLASS:
+	oPtr = (Object *) Tcl_GetObjectFromObj(interp, OBJ_AT_TOS);
+	if (oPtr == NULL) {
+	    TRACE(("%.30s => ERROR: not object\n", O2S(OBJ_AT_TOS)));
+	    goto gotError;
+	}
+	objResultPtr = TclOOObjectName(interp, oPtr->selfCls->thisPtr);
+	TRACE_WITH_OBJ(("%.30s => ", O2S(OBJ_AT_TOS)), objResultPtr);
+	NEXT_INST_F(1, 1, 1);
+    case INST_TCLOO_NS:
+	oPtr = (Object *) Tcl_GetObjectFromObj(interp, OBJ_AT_TOS);
+	if (oPtr == NULL) {
+	    TRACE(("%.30s => ERROR: not object\n", O2S(OBJ_AT_TOS)));
+	    goto gotError;
+	}
+
+	/*
+	 * TclOO objects *never* have the global namespace as their NS.
+	 */
+
+	TclNewStringObj(objResultPtr, oPtr->namespacePtr->fullName,
+		strlen(oPtr->namespacePtr->fullName));
+	TRACE_WITH_OBJ(("%.30s => ", O2S(OBJ_AT_TOS)), objResultPtr);
+	NEXT_INST_F(1, 1, 1);
+    }
+
+    /*
+     *     End of TclOO support instructions.
+     * -----------------------------------------------------------------
      *	   Start of INST_LIST and related instructions.
      */
 
@@ -4065,19 +5028,19 @@ TEBCresume(
 	NEXT_INST_V(5, opnd, 1);
 
     case INST_LIST_LENGTH:
-	valuePtr = OBJ_AT_TOS;
-	if (TclListObjLength(interp, valuePtr, &length) != TCL_OK) {
-	    TRACE_WITH_OBJ(("%.30s => ERROR: ", O2S(valuePtr)),
-		    Tcl_GetObjResult(interp));
+	TRACE(("\"%.30s\" => ", O2S(OBJ_AT_TOS)));
+	if (TclListObjLength(interp, OBJ_AT_TOS, &length) != TCL_OK) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	TclNewIntObj(objResultPtr, length);
-	TRACE(("%.20s => %d\n", O2S(valuePtr), length));
+	TRACE_APPEND(("%d\n", length));
 	NEXT_INST_F(1, 1, 1);
 
     case INST_LIST_INDEX:	/* lindex with objc == 3 */
 	value2Ptr = OBJ_AT_TOS;
 	valuePtr = OBJ_UNDER_TOS;
+	TRACE(("\"%.30s\" \"%.30s\" => ", O2S(valuePtr), O2S(value2Ptr)));
 
 	/*
 	 * Extract the desired list element.
@@ -4095,8 +5058,7 @@ TEBCresume(
 
 	objResultPtr = TclLindexList(interp, valuePtr, value2Ptr);
 	if (!objResultPtr) {
-	    TRACE_WITH_OBJ(("%.30s %.30s => ERROR: ", O2S(valuePtr),
-		    O2S(value2Ptr)), Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -4104,8 +5066,7 @@ TEBCresume(
 	 * Stash the list element on the stack.
 	 */
 
-	TRACE(("%.20s %.20s => %s\n",
-		O2S(valuePtr), O2S(value2Ptr), O2S(objResultPtr)));
+	TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
 	NEXT_INST_F(1, 2, -1);	/* Already has the correct refCount */
 
     case INST_LIST_INDEX_IMM:	/* lindex with objc==3 and index in bytecode
@@ -4117,6 +5078,7 @@ TEBCresume(
 
 	valuePtr = OBJ_AT_TOS;
 	opnd = TclGetInt4AtPtr(pc+1);
+	TRACE(("\"%.30s\" %d => ", O2S(valuePtr), opnd));
 
 	/*
 	 * Get the contents of the list, making sure that it really is a list
@@ -4124,8 +5086,7 @@ TEBCresume(
 	 */
 
 	if (TclListObjGetElements(interp, valuePtr, &objc, &objv) != TCL_OK) {
-	    TRACE_WITH_OBJ(("\"%.30s\" %d => ERROR: ", O2S(valuePtr), opnd),
-		    Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -4148,8 +5109,7 @@ TEBCresume(
 	    TclNewObj(objResultPtr);
 	}
 
-	TRACE_WITH_OBJ(("\"%.30s\" %d => ", O2S(valuePtr), opnd),
-		objResultPtr);
+	TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
 	NEXT_INST_F(pcAdjustment, 1, 1);
 
     case INST_LIST_INDEX_MULTI:	/* 'lindex' with multiple index args */
@@ -4164,10 +5124,11 @@ TEBCresume(
 	 * Do the 'lindex' operation.
 	 */
 
+	TRACE(("%d => ", opnd));
 	objResultPtr = TclLindexFlat(interp, OBJ_AT_DEPTH(numIndices),
 		numIndices, &OBJ_AT_DEPTH(numIndices - 1));
 	if (!objResultPtr) {
-	    TRACE_WITH_OBJ(("%d => ERROR: ", opnd), Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -4175,7 +5136,7 @@ TEBCresume(
 	 * Set result.
 	 */
 
-	TRACE(("%d => %s\n", opnd, O2S(objResultPtr)));
+	TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
 	NEXT_INST_V(5, opnd, -1);
 
     case INST_LSET_FLAT:
@@ -4185,6 +5146,7 @@ TEBCresume(
 
 	opnd = TclGetUInt4AtPtr(pc + 1);
 	numIndices = opnd - 2;
+	TRACE(("%d => ", opnd));
 
 	/*
 	 * Get the old value of variable, and remove the stack ref. This is
@@ -4203,7 +5165,7 @@ TEBCresume(
 	objResultPtr = TclLsetFlat(interp, valuePtr, numIndices,
 		&OBJ_AT_DEPTH(numIndices), OBJ_AT_TOS);
 	if (!objResultPtr) {
-	    TRACE_WITH_OBJ(("%d => ERROR: ", opnd), Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -4211,7 +5173,7 @@ TEBCresume(
 	 * Set result.
 	 */
 
-	TRACE(("%d => %s\n", opnd, O2S(objResultPtr)));
+	TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
 	NEXT_INST_V(5, numIndices+1, -1);
 
     case INST_LSET_LIST:	/* 'lset' with 4 args */
@@ -4231,6 +5193,8 @@ TEBCresume(
 
 	valuePtr = OBJ_AT_TOS;
 	value2Ptr = OBJ_UNDER_TOS;
+	TRACE(("\"%.30s\" \"%.30s\" \"%.30s\" => ",
+		O2S(value2Ptr), O2S(valuePtr), O2S(objPtr)));
 
 	/*
 	 * Compute the new variable value.
@@ -4238,8 +5202,7 @@ TEBCresume(
 
 	objResultPtr = TclLsetList(interp, objPtr, value2Ptr, valuePtr);
 	if (!objResultPtr) {
-	    TRACE_WITH_OBJ(("\"%.30s\" => ERROR: ", O2S(value2Ptr)),
-		    Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -4247,7 +5210,7 @@ TEBCresume(
 	 * Set result.
 	 */
 
-	TRACE(("=> %s\n", O2S(objResultPtr)));
+	TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
 	NEXT_INST_F(1, 2, -1);
 
     case INST_LIST_RANGE_IMM:	/* lrange with objc==4 and both indices in
@@ -4260,6 +5223,8 @@ TEBCresume(
 	valuePtr = OBJ_AT_TOS;
 	fromIdx = TclGetInt4AtPtr(pc+1);
 	toIdx = TclGetInt4AtPtr(pc+5);
+	TRACE(("\"%.30s\" %d %d => ", O2S(valuePtr), TclGetInt4AtPtr(pc+1),
+		TclGetInt4AtPtr(pc+5)));
 
 	/*
 	 * Get the contents of the list, making sure that it really is a list
@@ -4267,8 +5232,7 @@ TEBCresume(
 	 */
 
 	if (TclListObjGetElements(interp, valuePtr, &objc, &objv) != TCL_OK) {
-	    TRACE_WITH_OBJ(("\"%.30s\" %d %d => ERROR: ", O2S(valuePtr),
-		    fromIdx, toIdx), Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -4325,9 +5289,7 @@ TEBCresume(
 		List *listPtr = valuePtr->internalRep.twoPtrValue.ptr1;
 
 		if (listPtr->refCount == 1) {
-		    TRACE(("\"%.30s\" %d %d => ", O2S(valuePtr),
-			    TclGetInt4AtPtr(pc+1), TclGetInt4AtPtr(pc+5)));
-		    for (index=toIdx+1 ; index<objc-1 ; index++) {
+		    for (index=toIdx+1; index<objc ; index++) {
 			TclDecrRefCount(objv[index]);
 		    }
 		    listPtr->elemCount = toIdx+1;
@@ -4342,8 +5304,7 @@ TEBCresume(
 	    TclNewObj(objResultPtr);
 	}
 
-	TRACE_WITH_OBJ(("\"%.30s\" %d %d => ", O2S(valuePtr),
-		TclGetInt4AtPtr(pc+1), TclGetInt4AtPtr(pc+5)), objResultPtr);
+	TRACE_APPEND(("\"%.30s\"", O2S(objResultPtr)));
 	NEXT_INST_F(9, 1, 1);
 
     case INST_LIST_IN:
@@ -4352,9 +5313,9 @@ TEBCresume(
 	valuePtr = OBJ_UNDER_TOS;
 
 	s1 = TclGetStringFromObj(valuePtr, &s1len);
+	TRACE(("\"%.30s\" \"%.30s\" => ", O2S(valuePtr), O2S(value2Ptr)));
 	if (TclListObjLength(interp, value2Ptr, &length) != TCL_OK) {
-	    TRACE_WITH_OBJ(("\"%.30s\" \"%.30s\" => ERROR: ", O2S(valuePtr),
-		    O2S(value2Ptr)), Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	match = 0;
@@ -4385,7 +5346,7 @@ TEBCresume(
 	    match = !match;
 	}
 
-	TRACE(("%.20s %.20s => %d\n", O2S(valuePtr), O2S(value2Ptr), match));
+	TRACE_APPEND(("%d\n", match));
 
 	/*
 	 * Peep-hole optimisation: if you're about to jump, do jump from here.
@@ -4393,21 +5354,30 @@ TEBCresume(
 	 * for branching.
 	 */
 
-	pc++;
-#ifndef TCL_COMPILE_DEBUG
-	switch (*pc) {
-	case INST_JUMP_FALSE1:
-	    NEXT_INST_F((match ? 2 : TclGetInt1AtPtr(pc+1)), 2, 0);
-	case INST_JUMP_TRUE1:
-	    NEXT_INST_F((match ? TclGetInt1AtPtr(pc+1) : 2), 2, 0);
-	case INST_JUMP_FALSE4:
-	    NEXT_INST_F((match ? 5 : TclGetInt4AtPtr(pc+1)), 2, 0);
-	case INST_JUMP_TRUE4:
-	    NEXT_INST_F((match ? TclGetInt4AtPtr(pc+1) : 5), 2, 0);
+	JUMP_PEEPHOLE_F(match, 1, 2);
+
+    case INST_LIST_CONCAT:
+	value2Ptr = OBJ_AT_TOS;
+	valuePtr = OBJ_UNDER_TOS;
+	TRACE(("\"%.30s\" \"%.30s\" => ", O2S(valuePtr), O2S(value2Ptr)));
+	if (Tcl_IsShared(valuePtr)) {
+	    objResultPtr = Tcl_DuplicateObj(valuePtr);
+	    if (Tcl_ListObjAppendList(interp, objResultPtr,
+		    value2Ptr) != TCL_OK) {
+		TRACE_ERROR(interp);
+		TclDecrRefCount(objResultPtr);
+		goto gotError;
+	    }
+	    TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
+	    NEXT_INST_F(1, 2, 1);
+	} else {
+	    if (Tcl_ListObjAppendList(interp, valuePtr, value2Ptr) != TCL_OK){
+		TRACE_ERROR(interp);
+		goto gotError;
+	    }
+	    TRACE_APPEND(("\"%.30s\"\n", O2S(valuePtr)));
+	    NEXT_INST_F(1, 1, 0);
 	}
-#endif
-	objResultPtr = TCONST(match);
-	NEXT_INST_F(0, 2, 1);
 
     /*
      *	   End of INST_LIST and related instructions.
@@ -4441,8 +5411,8 @@ TEBCresume(
 		s1 = (char *) Tcl_GetByteArrayFromObj(valuePtr, &s1len);
 		s2 = (char *) Tcl_GetByteArrayFromObj(value2Ptr, &s2len);
 		memCmpFn = memcmp;
-	    } else if (((valuePtr->typePtr == &tclStringType)
-		    && (value2Ptr->typePtr == &tclStringType))) {
+	    } else if ((valuePtr->typePtr == &tclStringType)
+		    && (value2Ptr->typePtr == &tclStringType)) {
 		/*
 		 * Do a unicode-specific comparison if both of the args are of
 		 * String type. If the char length == byte length, we can do a
@@ -4453,7 +5423,9 @@ TEBCresume(
 		s1len = Tcl_GetCharLength(valuePtr);
 		s2len = Tcl_GetCharLength(value2Ptr);
 		if ((s1len == valuePtr->length)
-			&& (s2len == value2Ptr->length)) {
+			&& (valuePtr->bytes != NULL)
+			&& (s2len == value2Ptr->length)
+			&& (value2Ptr->bytes != NULL)) {
 		    s1 = valuePtr->bytes;
 		    s2 = value2Ptr->bytes;
 		    memCmpFn = memcmp;
@@ -4537,25 +5509,74 @@ TEBCresume(
 		break;
 	    }
 	}
-	if (match < 0) {
-	    TclNewIntObj(objResultPtr, -1);
-	} else {
-	    objResultPtr = TCONST(match > 0);
-	}
-	TRACE(("%.20s %.20s => %s\n", O2S(valuePtr), O2S(value2Ptr),
-		O2S(objResultPtr)));
-	NEXT_INST_F(1, 2, 1);
+
+	TRACE(("\"%.20s\" \"%.20s\" => %d\n", O2S(valuePtr), O2S(value2Ptr),
+		(match < 0 ? -1 : match > 0 ? 1 : 0)));
+	JUMP_PEEPHOLE_F(match, 1, 2);
 
     case INST_STR_LEN:
 	valuePtr = OBJ_AT_TOS;
 	length = Tcl_GetCharLength(valuePtr);
 	TclNewIntObj(objResultPtr, length);
-	TRACE(("%.20s => %d\n", O2S(valuePtr), length));
+	TRACE(("\"%.20s\" => %d\n", O2S(valuePtr), length));
 	NEXT_INST_F(1, 1, 1);
 
+    case INST_STR_UPPER:
+	valuePtr = OBJ_AT_TOS;
+	TRACE(("\"%.20s\" => ", O2S(valuePtr)));
+	if (Tcl_IsShared(valuePtr)) {
+	    s1 = TclGetStringFromObj(valuePtr, &length);
+	    TclNewStringObj(objResultPtr, s1, length);
+	    length = Tcl_UtfToUpper(TclGetString(objResultPtr));
+	    Tcl_SetObjLength(objResultPtr, length);
+	    TRACE_APPEND(("\"%.20s\"\n", O2S(objResultPtr)));
+	    NEXT_INST_F(1, 1, 1);
+	} else {
+	    length = Tcl_UtfToUpper(TclGetString(valuePtr));
+	    Tcl_SetObjLength(valuePtr, length);
+	    TclFreeIntRep(valuePtr);
+	    TRACE_APPEND(("\"%.20s\"\n", O2S(valuePtr)));
+	    NEXT_INST_F(1, 0, 0);
+	}
+    case INST_STR_LOWER:
+	valuePtr = OBJ_AT_TOS;
+	TRACE(("\"%.20s\" => ", O2S(valuePtr)));
+	if (Tcl_IsShared(valuePtr)) {
+	    s1 = TclGetStringFromObj(valuePtr, &length);
+	    TclNewStringObj(objResultPtr, s1, length);
+	    length = Tcl_UtfToLower(TclGetString(objResultPtr));
+	    Tcl_SetObjLength(objResultPtr, length);
+	    TRACE_APPEND(("\"%.20s\"\n", O2S(objResultPtr)));
+	    NEXT_INST_F(1, 1, 1);
+	} else {
+	    length = Tcl_UtfToLower(TclGetString(valuePtr));
+	    Tcl_SetObjLength(valuePtr, length);
+	    TclFreeIntRep(valuePtr);
+	    TRACE_APPEND(("\"%.20s\"\n", O2S(valuePtr)));
+	    NEXT_INST_F(1, 0, 0);
+	}
+    case INST_STR_TITLE:
+	valuePtr = OBJ_AT_TOS;
+	TRACE(("\"%.20s\" => ", O2S(valuePtr)));
+	if (Tcl_IsShared(valuePtr)) {
+	    s1 = TclGetStringFromObj(valuePtr, &length);
+	    TclNewStringObj(objResultPtr, s1, length);
+	    length = Tcl_UtfToTitle(TclGetString(objResultPtr));
+	    Tcl_SetObjLength(objResultPtr, length);
+	    TRACE_APPEND(("\"%.20s\"\n", O2S(objResultPtr)));
+	    NEXT_INST_F(1, 1, 1);
+	} else {
+	    length = Tcl_UtfToTitle(TclGetString(valuePtr));
+	    Tcl_SetObjLength(valuePtr, length);
+	    TclFreeIntRep(valuePtr);
+	    TRACE_APPEND(("\"%.20s\"\n", O2S(valuePtr)));
+	    NEXT_INST_F(1, 0, 0);
+	}
+
     case INST_STR_INDEX:
 	value2Ptr = OBJ_AT_TOS;
 	valuePtr = OBJ_UNDER_TOS;
+	TRACE(("\"%.20s\" %.20s => ", O2S(valuePtr), O2S(value2Ptr)));
 
 	/*
 	 * Get char length to calulate what 'end' means.
@@ -4563,6 +5584,7 @@ TEBCresume(
 
 	length = Tcl_GetCharLength(valuePtr);
 	if (TclGetIntForIndexM(interp, value2Ptr, length-1, &index)!=TCL_OK) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -4570,7 +5592,7 @@ TEBCresume(
 	    TclNewObj(objResultPtr);
 	} else if (TclIsPureByteArray(valuePtr)) {
 	    objResultPtr = Tcl_NewByteArrayObj(
-		    Tcl_GetByteArrayFromObj(valuePtr, &length)+index, 1);
+		    Tcl_GetByteArrayFromObj(valuePtr, NULL)+index, 1);
 	} else if (valuePtr->bytes && length == valuePtr->length) {
 	    objResultPtr = Tcl_NewStringObj((const char *)
 		    valuePtr->bytes+index, 1);
@@ -4588,10 +5610,384 @@ TEBCresume(
 	    objResultPtr = Tcl_NewStringObj(buf, length);
 	}
 
-	TRACE(("%.20s %.20s => %s\n", O2S(valuePtr), O2S(value2Ptr),
-		O2S(objResultPtr)));
+	TRACE_APPEND(("\"%s\"\n", O2S(objResultPtr)));
+	NEXT_INST_F(1, 2, 1);
+
+    case INST_STR_RANGE:
+	TRACE(("\"%.20s\" %.20s %.20s =>",
+		O2S(OBJ_AT_DEPTH(2)), O2S(OBJ_UNDER_TOS), O2S(OBJ_AT_TOS)));
+	length = Tcl_GetCharLength(OBJ_AT_DEPTH(2)) - 1;
+	if (TclGetIntForIndexM(interp, OBJ_UNDER_TOS, length,
+		    &fromIdx) != TCL_OK
+	    || TclGetIntForIndexM(interp, OBJ_AT_TOS, length,
+		    &toIdx) != TCL_OK) {
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+
+	if (fromIdx < 0) {
+	    fromIdx = 0;
+	}
+	if (toIdx >= length) {
+	    toIdx = length;
+	}
+	if (toIdx >= fromIdx) {
+	    objResultPtr = Tcl_GetRange(OBJ_AT_DEPTH(2), fromIdx, toIdx);
+	} else {
+	    TclNewObj(objResultPtr);
+	}
+	TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
+	NEXT_INST_V(1, 3, 1);
+
+    case INST_STR_RANGE_IMM:
+	valuePtr = OBJ_AT_TOS;
+	fromIdx = TclGetInt4AtPtr(pc+1);
+	toIdx = TclGetInt4AtPtr(pc+5);
+	length = Tcl_GetCharLength(valuePtr);
+	TRACE(("\"%.20s\" %d %d => ", O2S(valuePtr), fromIdx, toIdx));
+
+	/*
+	 * Adjust indices for end-based indexing.
+	 */
+
+	if (fromIdx < -1) {
+	    fromIdx += 1 + length;
+	    if (fromIdx < 0) {
+		fromIdx = 0;
+	    }
+	} else if (fromIdx >= length) {
+	    fromIdx = length;
+	}
+	if (toIdx < -1) {
+	    toIdx += 1 + length;
+	} else if (toIdx >= length) {
+	    toIdx = length - 1;
+	}
+
+	/*
+	 * Check if we can do a sane substring.
+	 */
+
+	if (fromIdx <= toIdx) {
+	    objResultPtr = Tcl_GetRange(valuePtr, fromIdx, toIdx);
+	} else {
+	    TclNewObj(objResultPtr);
+	}
+	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
+	NEXT_INST_F(9, 1, 1);
+
+    {
+	Tcl_UniChar *ustring1, *ustring2, *ustring3, *end, *p;
+	int length3;
+	Tcl_Obj *value3Ptr;
+
+    case INST_STR_REPLACE:
+	value3Ptr = POP_OBJECT();
+	valuePtr = OBJ_AT_DEPTH(2);
+	length = Tcl_GetCharLength(valuePtr) - 1;
+	TRACE(("\"%.20s\" %s %s \"%.20s\" => ", O2S(valuePtr),
+		O2S(OBJ_UNDER_TOS), O2S(OBJ_AT_TOS), O2S(value3Ptr)));
+	if (TclGetIntForIndexM(interp, OBJ_UNDER_TOS, length,
+		    &fromIdx) != TCL_OK
+	    || TclGetIntForIndexM(interp, OBJ_AT_TOS, length,
+		    &toIdx) != TCL_OK) {
+	    TclDecrRefCount(value3Ptr);
+	    TRACE_ERROR(interp);
+	    goto gotError;
+	}
+	TclDecrRefCount(OBJ_AT_TOS);
+	(void) POP_OBJECT();
+	TclDecrRefCount(OBJ_AT_TOS);
+	(void) POP_OBJECT();
+	if (fromIdx < 0) {
+	    fromIdx = 0;
+	}
+
+	if (fromIdx > toIdx || fromIdx > length) {
+	    TRACE_APPEND(("\"%.30s\"\n", O2S(valuePtr)));
+	    TclDecrRefCount(value3Ptr);
+	    NEXT_INST_F(1, 0, 0);
+	}
+
+	if (toIdx > length) {
+	    toIdx = length;
+	}
+
+	if (fromIdx == 0 && toIdx == length) {
+	    TclDecrRefCount(OBJ_AT_TOS);
+	    OBJ_AT_TOS = value3Ptr;
+	    TRACE_APPEND(("\"%.30s\"\n", O2S(value3Ptr)));
+	    NEXT_INST_F(1, 0, 0);
+	}
+
+	length3 = Tcl_GetCharLength(value3Ptr);
+
+	/*
+	 * Remove substring. In-place.
+	 */
+
+	if (length3 == 0 && !Tcl_IsShared(valuePtr) && toIdx == length) {
+	    TclDecrRefCount(value3Ptr);
+	    Tcl_SetObjLength(valuePtr, fromIdx);
+	    TRACE_APPEND(("\"%.30s\"\n", O2S(valuePtr)));
+	    NEXT_INST_F(1, 0, 0);
+	}
+
+	/*
+	 * See if we can splice in place. This happens when the number of
+	 * characters being replaced is the same as the number of characters
+	 * in the string to be inserted.
+	 */
+
+	if (length3 - 1 == toIdx - fromIdx) {
+	    unsigned char *bytes1, *bytes2;
+
+	    if (Tcl_IsShared(valuePtr)) {
+		objResultPtr = Tcl_DuplicateObj(valuePtr);
+		if (TclIsPureByteArray(objResultPtr)
+			&& TclIsPureByteArray(value3Ptr)) {
+		    bytes1 = Tcl_GetByteArrayFromObj(objResultPtr, NULL);
+		    bytes2 = Tcl_GetByteArrayFromObj(value3Ptr, NULL);
+		    memcpy(bytes1 + fromIdx, bytes2, length3);
+		} else {
+		    ustring1 = Tcl_GetUnicodeFromObj(objResultPtr, NULL);
+		    ustring2 = Tcl_GetUnicodeFromObj(value3Ptr, NULL);
+		    memcpy(ustring1 + fromIdx, ustring2,
+			    length3 * sizeof(Tcl_UniChar));
+
+		    /*
+		     * Magic! Flush the info in the string internal rep that
+		     * refers to the about-to-be-invalidated UTF-8 rep. This
+		     * sets the 'allocated' field of the String structure to 0
+		     * to indicate that a new buffer needs to be allocated.
+		     * This is safe; we know we've got a tclStringTypePtr set
+		     * at this point (post Tcl_GetUnicodeFromObj).
+		     */
+
+		    ((int *) objResultPtr->internalRep.otherValuePtr)[1] = 0;
+		}
+		Tcl_InvalidateStringRep(objResultPtr);
+		TclDecrRefCount(value3Ptr);
+		TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
+		NEXT_INST_F(1, 1, 1);
+	    } else {
+		if (TclIsPureByteArray(valuePtr)
+			&& TclIsPureByteArray(value3Ptr)) {
+		    bytes1 = Tcl_GetByteArrayFromObj(valuePtr, NULL);
+		    bytes2 = Tcl_GetByteArrayFromObj(value3Ptr, NULL);
+		    memcpy(bytes1 + fromIdx, bytes2, length3);
+		} else {
+		    ustring1 = Tcl_GetUnicodeFromObj(valuePtr, NULL);
+		    ustring2 = Tcl_GetUnicodeFromObj(value3Ptr, NULL);
+		    memcpy(ustring1 + fromIdx, ustring2,
+			    length3 * sizeof(Tcl_UniChar));
+
+		    /*
+		     * Magic! Flush the info in the string internal rep that
+		     * refers to the about-to-be-invalidated UTF-8 rep. This
+		     * sets the 'allocated' field of the String structure to 0
+		     * to indicate that a new buffer needs to be allocated.
+		     * This is safe; we know we've got a tclStringTypePtr set
+		     * at this point (post Tcl_GetUnicodeFromObj).
+		     */
+
+		    ((int *) objResultPtr->internalRep.otherValuePtr)[1] = 0;
+		}
+		Tcl_InvalidateStringRep(valuePtr);
+		TclDecrRefCount(value3Ptr);
+		TRACE_APPEND(("\"%.30s\"\n", O2S(valuePtr)));
+		NEXT_INST_F(1, 0, 0);
+	    }
+	}
+
+	/*
+	 * Get the unicode representation; this is where we guarantee to lose
+	 * bytearrays.
+	 */
+
+	ustring1 = Tcl_GetUnicodeFromObj(valuePtr, &length);
+	length--;
+
+	/*
+	 * Remove substring using copying.
+	 */
+
+	if (length3 == 0) {
+	    if (fromIdx > 0) {
+		objResultPtr = Tcl_NewUnicodeObj(ustring1, fromIdx);
+		if (toIdx < length) {
+		    Tcl_AppendUnicodeToObj(objResultPtr, ustring1 + toIdx + 1,
+			    length - toIdx);
+		}
+	    } else {
+		objResultPtr = Tcl_NewUnicodeObj(ustring1 + toIdx + 1,
+			length - toIdx);
+	    }
+	    TclDecrRefCount(value3Ptr);
+	    TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
+	    NEXT_INST_F(1, 1, 1);
+	}
+
+	/*
+	 * Splice string pieces by full copying.
+	 */
+
+	if (fromIdx > 0) {
+	    objResultPtr = Tcl_NewUnicodeObj(ustring1, fromIdx);
+	    Tcl_AppendObjToObj(objResultPtr, value3Ptr);
+	    if (toIdx < length) {
+		Tcl_AppendUnicodeToObj(objResultPtr, ustring1 + toIdx + 1,
+			length - toIdx);
+	    }
+	} else if (Tcl_IsShared(value3Ptr)) {
+	    objResultPtr = Tcl_DuplicateObj(value3Ptr);
+	    if (toIdx < length) {
+		Tcl_AppendUnicodeToObj(objResultPtr, ustring1 + toIdx + 1,
+			length - toIdx);
+	    }
+	} else {
+	    /*
+	     * Be careful with splicing the stack in this case; we have a
+	     * refCount:1 object in value3Ptr and we want to append to it and
+	     * make it be the refCount:1 object at the top of the stack
+	     * afterwards. [Bug 82e7f67325]
+	     */
+
+	    if (toIdx < length) {
+		Tcl_AppendUnicodeToObj(value3Ptr, ustring1 + toIdx + 1,
+			length - toIdx);
+	    }
+	    TRACE_APPEND(("\"%.30s\"\n", O2S(value3Ptr)));
+	    TclDecrRefCount(valuePtr);
+	    OBJ_AT_TOS = value3Ptr;	/* Tricky! */
+	    NEXT_INST_F(1, 0, 0);
+	}
+	TclDecrRefCount(value3Ptr);
+	TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
+	NEXT_INST_F(1, 1, 1);
+
+    case INST_STR_MAP:
+	valuePtr = OBJ_AT_TOS;		/* "Main" string. */
+	value3Ptr = OBJ_UNDER_TOS;	/* "Target" string. */
+	value2Ptr = OBJ_AT_DEPTH(2);	/* "Source" string. */
+	if (value3Ptr == value2Ptr) {
+	    objResultPtr = valuePtr;
+	    goto doneStringMap;
+	} else if (valuePtr == value2Ptr) {
+	    objResultPtr = value3Ptr;
+	    goto doneStringMap;
+	}
+	ustring1 = Tcl_GetUnicodeFromObj(valuePtr, &length);
+	if (length == 0) {
+	    objResultPtr = valuePtr;
+	    goto doneStringMap;
+	}
+	ustring2 = Tcl_GetUnicodeFromObj(value2Ptr, &length2);
+	if (length2 > length || length2 == 0) {
+	    objResultPtr = valuePtr;
+	    goto doneStringMap;
+	} else if (length2 == length) {
+	    if (memcmp(ustring1, ustring2, sizeof(Tcl_UniChar) * length)) {
+		objResultPtr = valuePtr;
+	    } else {
+		objResultPtr = value3Ptr;
+	    }
+	    goto doneStringMap;
+	}
+	ustring3 = Tcl_GetUnicodeFromObj(value3Ptr, &length3);
+
+	objResultPtr = Tcl_NewUnicodeObj(ustring1, 0);
+	p = ustring1;
+	end = ustring1 + length;
+	for (; ustring1 < end; ustring1++) {
+	    if ((*ustring1 == *ustring2) && (length2==1 ||
+		    memcmp(ustring1, ustring2, sizeof(Tcl_UniChar) * length2)
+			    == 0)) {
+		if (p != ustring1) {
+		    Tcl_AppendUnicodeToObj(objResultPtr, p, ustring1-p);
+		    p = ustring1 + length2;
+		} else {
+		    p += length2;
+		}
+		ustring1 = p - 1;
+
+		Tcl_AppendUnicodeToObj(objResultPtr, ustring3, length3);
+	    }
+	}
+	if (p != ustring1) {
+	    /*
+	     * Put the rest of the unmapped chars onto result.
+	     */
+
+	    Tcl_AppendUnicodeToObj(objResultPtr, p, ustring1 - p);
+	}
+    doneStringMap:
+	TRACE_WITH_OBJ(("%.20s %.20s %.20s => ",
+		O2S(value2Ptr), O2S(value3Ptr), O2S(valuePtr)), objResultPtr);
+	NEXT_INST_V(1, 3, 1);
+
+    case INST_STR_FIND:
+	ustring1 = Tcl_GetUnicodeFromObj(OBJ_AT_TOS, &length);	/* Haystack */
+	ustring2 = Tcl_GetUnicodeFromObj(OBJ_UNDER_TOS, &length2);/* Needle */
+
+	match = -1;
+	if (length2 > 0 && length2 <= length) {
+	    end = ustring1 + length - length2 + 1;
+	    for (p=ustring1 ; p<end ; p++) {
+		if ((*p == *ustring2) &&
+			memcmp(ustring2,p,sizeof(Tcl_UniChar)*length2) == 0) {
+		    match = p - ustring1;
+		    break;
+		}
+	    }
+	}
+
+	TRACE(("%.20s %.20s => %d\n",
+		O2S(OBJ_UNDER_TOS), O2S(OBJ_AT_TOS), match));
+	TclNewIntObj(objResultPtr, match);
 	NEXT_INST_F(1, 2, 1);
 
+    case INST_STR_FIND_LAST:
+	ustring1 = Tcl_GetUnicodeFromObj(OBJ_AT_TOS, &length);	/* Haystack */
+	ustring2 = Tcl_GetUnicodeFromObj(OBJ_UNDER_TOS, &length2);/* Needle */
+
+	match = -1;
+	if (length2 > 0 && length2 <= length) {
+	    for (p=ustring1+length-length2 ; p>=ustring1 ; p--) {
+		if ((*p == *ustring2) &&
+			memcmp(ustring2,p,sizeof(Tcl_UniChar)*length2) == 0) {
+		    match = p - ustring1;
+		    break;
+		}
+	    }
+	}
+
+	TRACE(("%.20s %.20s => %d\n",
+		O2S(OBJ_UNDER_TOS), O2S(OBJ_AT_TOS), match));
+
+	TclNewIntObj(objResultPtr, match);
+	NEXT_INST_F(1, 2, 1);
+
+    case INST_STR_CLASS:
+	opnd = TclGetInt1AtPtr(pc+1);
+	valuePtr = OBJ_AT_TOS;
+	TRACE(("%s \"%.30s\" => ", tclStringClassTable[opnd].name,
+		O2S(valuePtr)));
+	ustring1 = Tcl_GetUnicodeFromObj(valuePtr, &length);
+	match = 1;
+	if (length > 0) {
+	    end = ustring1 + length;
+	    for (p=ustring1 ; p<end ; p++) {
+		if (!tclStringClassTable[opnd].comparator(*p)) {
+		    match = 0;
+		    break;
+		}
+	    }
+	}
+	TRACE_APPEND(("%d\n", match));
+	JUMP_PEEPHOLE_F(match, 2, 1);
+    }
+
     case INST_STR_MATCH:
 	nocase = TclGetInt1AtPtr(pc+1);
 	valuePtr = OBJ_AT_TOS;		/* String */
@@ -4632,26 +6028,77 @@ TEBCresume(
 	 * Peep-hole optimisation: if you're about to jump, do jump from here.
 	 */
 
-	pc += 2;
-#ifndef TCL_COMPILE_DEBUG
-	switch (*pc) {
-	case INST_JUMP_FALSE1:
-	    NEXT_INST_F((match? 2 : TclGetInt1AtPtr(pc+1)), 2, 0);
-	case INST_JUMP_TRUE1:
-	    NEXT_INST_F((match? TclGetInt1AtPtr(pc+1) : 2), 2, 0);
-	case INST_JUMP_FALSE4:
-	    NEXT_INST_F((match? 5 : TclGetInt4AtPtr(pc+1)), 2, 0);
-	case INST_JUMP_TRUE4:
-	    NEXT_INST_F((match? TclGetInt4AtPtr(pc+1) : 5), 2, 0);
+	JUMP_PEEPHOLE_F(match, 2, 2);
+
+    {
+	const char *string1, *string2;
+	int trim1, trim2;
+
+    case INST_STR_TRIM_LEFT:
+	valuePtr = OBJ_UNDER_TOS;	/* String */
+	value2Ptr = OBJ_AT_TOS;		/* TrimSet */
+	string2 = TclGetStringFromObj(value2Ptr, &length2);
+	string1 = TclGetStringFromObj(valuePtr, &length);
+	trim1 = TclTrimLeft(string1, length, string2, length2);
+	trim2 = 0;
+	goto createTrimmedString;
+    case INST_STR_TRIM_RIGHT:
+	valuePtr = OBJ_UNDER_TOS;	/* String */
+	value2Ptr = OBJ_AT_TOS;		/* TrimSet */
+	string2 = TclGetStringFromObj(value2Ptr, &length2);
+	string1 = TclGetStringFromObj(valuePtr, &length);
+	trim2 = TclTrimRight(string1, length, string2, length2);
+	trim1 = 0;
+	goto createTrimmedString;
+    case INST_STR_TRIM:
+	valuePtr = OBJ_UNDER_TOS;	/* String */
+	value2Ptr = OBJ_AT_TOS;		/* TrimSet */
+	string2 = TclGetStringFromObj(value2Ptr, &length2);
+	string1 = TclGetStringFromObj(valuePtr, &length);
+	trim1 = TclTrimLeft(string1, length, string2, length2);
+	if (trim1 < length) {
+	    trim2 = TclTrimRight(string1, length, string2, length2);
+	} else {
+	    trim2 = 0;
 	}
+    createTrimmedString:
+	/*
+	 * Careful here; trim set often contains non-ASCII characters so we
+	 * take care when printing. [Bug 971cb4f1db]
+	 */
+
+#ifdef TCL_COMPILE_DEBUG
+	if (traceInstructions) {
+	    TRACE(("\"%.30s\" ", O2S(valuePtr)));
+	    TclPrintObject(stdout, value2Ptr, 30);
+	    printf(" => ");
+	}
+#endif
+	if (trim1 == 0 && trim2 == 0) {
+#ifdef TCL_COMPILE_DEBUG
+	    if (traceInstructions) {
+		TclPrintObject(stdout, valuePtr, 30);
+		printf("\n");
+	    }
 #endif
-	objResultPtr = TCONST(match);
-	NEXT_INST_F(0, 2, 1);
+	    NEXT_INST_F(1, 1, 0);
+	} else {
+	    objResultPtr = Tcl_NewStringObj(string1+trim1, length-trim1-trim2);
+#ifdef TCL_COMPILE_DEBUG
+	    if (traceInstructions) {
+		TclPrintObject(stdout, objResultPtr, 30);
+		printf("\n");
+	    }
+#endif
+	    NEXT_INST_F(1, 2, 1);
+	}
+    }
 
     case INST_REGEXP:
 	cflags = TclGetInt1AtPtr(pc+1); /* RE compile flages like NOCASE */
 	valuePtr = OBJ_AT_TOS;		/* String */
 	value2Ptr = OBJ_UNDER_TOS;	/* Pattern */
+	TRACE(("\"%.30s\" \"%.30s\" => ", O2S(valuePtr), O2S(value2Ptr)));
 
 	/*
 	 * Compile and match the regular expression.
@@ -4662,44 +6109,24 @@ TEBCresume(
 		    Tcl_GetRegExpFromObj(interp, value2Ptr, cflags);
 
 	    if (regExpr == NULL) {
-		goto regexpFailure;
+		TRACE_ERROR(interp);
+		goto gotError;
 	    }
-
 	    match = Tcl_RegExpExecObj(interp, regExpr, valuePtr, 0, 0, 0);
-
 	    if (match < 0) {
-	    regexpFailure:
-#ifdef TCL_COMPILE_DEBUG
-		objResultPtr = Tcl_GetObjResult(interp);
-		TRACE_WITH_OBJ(("%.20s %.20s => ERROR: ",
-			O2S(valuePtr), O2S(value2Ptr)), objResultPtr);
-#endif
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	}
 
-	TRACE(("%.20s %.20s => %d\n", O2S(valuePtr), O2S(value2Ptr), match));
+	TRACE_APPEND(("%d\n", match));
 
 	/*
 	 * Peep-hole optimisation: if you're about to jump, do jump from here.
 	 * Adjustment is 2 due to the nocase byte.
 	 */
 
-	pc += 2;
-#ifndef TCL_COMPILE_DEBUG
-	switch (*pc) {
-	case INST_JUMP_FALSE1:
-	    NEXT_INST_F((match? 2 : TclGetInt1AtPtr(pc+1)), 2, 0);
-	case INST_JUMP_TRUE1:
-	    NEXT_INST_F((match? TclGetInt1AtPtr(pc+1) : 2), 2, 0);
-	case INST_JUMP_FALSE4:
-	    NEXT_INST_F((match? 5 : TclGetInt4AtPtr(pc+1)), 2, 0);
-	case INST_JUMP_TRUE4:
-	    NEXT_INST_F((match? TclGetInt4AtPtr(pc+1) : 5), 2, 0);
-	}
-#endif
-	objResultPtr = TCONST(match);
-	NEXT_INST_F(0, 2, 1);
+	JUMP_PEEPHOLE_F(match, 2, 2);
     }
 
     /*
@@ -4713,6 +6140,39 @@ TEBCresume(
 	int type1, type2;
 	long l1, l2, lResult;
 
+    case INST_NUM_TYPE:
+	if (GetNumberFromObj(NULL, OBJ_AT_TOS, &ptr1, &type1) != TCL_OK) {
+	    type1 = 0;
+	} else if (type1 == TCL_NUMBER_LONG) {
+	    /* value is between LONG_MIN and LONG_MAX */
+	    /* [string is integer] is -UINT_MAX to UINT_MAX range */
+	    int i;
+
+	    if (Tcl_GetIntFromObj(NULL, OBJ_AT_TOS, &i) != TCL_OK) {
+		type1 = TCL_NUMBER_WIDE;
+	    }
+#ifndef TCL_WIDE_INT_IS_LONG
+	} else if (type1 == TCL_NUMBER_WIDE) {
+	    /* value is between WIDE_MIN and WIDE_MAX */
+	    /* [string is wideinteger] is -UWIDE_MAX to UWIDE_MAX range */
+	    int i;
+	    if (Tcl_GetIntFromObj(NULL, OBJ_AT_TOS, &i) == TCL_OK) {
+		type1 = TCL_NUMBER_LONG;
+	    }
+#endif
+	} else if (type1 == TCL_NUMBER_BIG) {
+	    /* value is an integer outside the WIDE_MIN to WIDE_MAX range */
+	    /* [string is wideinteger] is -UWIDE_MAX to UWIDE_MAX range */
+	    Tcl_WideInt w;
+
+	    if (Tcl_GetWideIntFromObj(NULL, OBJ_AT_TOS, &w) == TCL_OK) {
+		type1 = TCL_NUMBER_WIDE;
+	    }
+	}
+	TclNewIntObj(objResultPtr, type1);
+	TRACE(("\"%.20s\" => %d\n", O2S(OBJ_AT_TOS), type1));
+	NEXT_INST_F(1, 1, 1);
+
     case INST_EQ:
     case INST_NEQ:
     case INST_LT:
@@ -4797,21 +6257,9 @@ TEBCresume(
 	 */
 
     foundResult:
-	pc++;
-#ifndef TCL_COMPILE_DEBUG
-	switch (*pc) {
-	case INST_JUMP_FALSE1:
-	    NEXT_INST_F((iResult? 2 : TclGetInt1AtPtr(pc+1)), 2, 0);
-	case INST_JUMP_TRUE1:
-	    NEXT_INST_F((iResult? TclGetInt1AtPtr(pc+1) : 2), 2, 0);
-	case INST_JUMP_FALSE4:
-	    NEXT_INST_F((iResult? 5 : TclGetInt4AtPtr(pc+1)), 2, 0);
-	case INST_JUMP_TRUE4:
-	    NEXT_INST_F((iResult? TclGetInt4AtPtr(pc+1) : 5), 2, 0);
-	}
-#endif
-	objResultPtr = TCONST(iResult);
-	NEXT_INST_F(0, 2, 1);
+	TRACE(("\"%.20s\" \"%.20s\" => %d\n", O2S(valuePtr), O2S(value2Ptr),
+		iResult));
+	JUMP_PEEPHOLE_F(iResult, 1, 2);
     }
 
     case INST_MOD:
@@ -4898,13 +6346,13 @@ TEBCresume(
 		if (l2 < 0) {
 		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
 			    "negative shift argument", -1));
-#if 0
+#ifdef ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR
 		    DECACHE_STACK_INFO();
 		    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
 			    "domain error: argument not in valid range",
 			    NULL);
 		    CACHE_STACK_INFO();
-#endif
+#endif /* ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR */
 		    goto gotError;
 		} else if (l1 == 0) {
 		    TRACE(("%s %s => ", O2S(valuePtr), O2S(value2Ptr)));
@@ -4946,13 +6394,13 @@ TEBCresume(
 		if (l2 < 0) {
 		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
 			    "negative shift argument", -1));
-#if 0
+#ifdef ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR
 		    DECACHE_STACK_INFO();
 		    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
 			    "domain error: argument not in valid range",
 			    NULL);
 		    CACHE_STACK_INFO();
-#endif
+#endif /* ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR */
 		    goto gotError;
 		} else if (l1 == 0) {
 		    TRACE(("%s %s => ", O2S(valuePtr), O2S(value2Ptr)));
@@ -4969,12 +6417,12 @@ TEBCresume(
 
 		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
 			    "integer value too large to represent", -1));
-#if 0
+#ifdef ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR
 		    DECACHE_STACK_INFO();
 		    Tcl_SetErrorCode(interp, "ARITH", "IOVERFLOW",
 			    "integer value too large to represent", NULL);
 		    CACHE_STACK_INFO();
-#endif
+#endif /* ERROR_CODE_FOR_EARLY_DETECTED_ARITH_ERROR */
 		    goto gotError;
 		} else {
 		    int shift = (int) l2;
@@ -5032,8 +6480,7 @@ TEBCresume(
 	    TRACE_APPEND(("DIVIDE BY ZERO\n"));
 	    goto divideByZero;
 	} else if (objResultPtr == GENERAL_ARITHMETIC_ERROR) {
-	    TRACE_APPEND(("ERROR: %s\n",
-		    TclGetString(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	} else if (objResultPtr == NULL) {
 	    TRACE_APPEND(("%s\n", O2S(valuePtr)));
@@ -5110,7 +6557,7 @@ TEBCresume(
 		w1 = (Tcl_WideInt) l1;
 		w2 = (Tcl_WideInt) l2;
 		wResult = w1 + w2;
-#ifdef NO_WIDE_TYPE
+#ifdef TCL_WIDE_INT_IS_LONG
 		/*
 		 * Check for overflow.
 		 */
@@ -5125,7 +6572,7 @@ TEBCresume(
 		w1 = (Tcl_WideInt) l1;
 		w2 = (Tcl_WideInt) l2;
 		wResult = w1 - w2;
-#ifdef NO_WIDE_TYPE
+#ifdef TCL_WIDE_INT_IS_LONG
 		/*
 		 * Must check for overflow. The macro tests for overflows in
 		 * sums by looking at the sign bits. As we have a subtraction
@@ -5205,8 +6652,7 @@ TEBCresume(
 	    TRACE_APPEND(("EXPONENT OF ZERO\n"));
 	    goto exponOfZero;
 	} else if (objResultPtr == GENERAL_ARITHMETIC_ERROR) {
-	    TRACE_APPEND(("ERROR: %s\n",
-		    TclGetString(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	} else if (objResultPtr == NULL) {
 	    TRACE_APPEND(("%s\n", O2S(valuePtr)));
@@ -5224,7 +6670,7 @@ TEBCresume(
 	/* TODO - check claim that taking address of b harms performance */
 	/* TODO - consider optimization search for constants */
 	if (TclGetBooleanFromObj(NULL, valuePtr, &b) != TCL_OK) {
-	    TRACE(("\"%.20s\" => ILLEGAL TYPE %s\n", O2S(valuePtr),
+	    TRACE(("\"%.20s\" => ERROR: illegal type %s\n", O2S(valuePtr),
 		    (valuePtr->typePtr? valuePtr->typePtr->name : "null")));
 	    DECACHE_STACK_INFO();
 	    IllegalExprOperandType(interp, pc, valuePtr);
@@ -5233,18 +6679,20 @@ TEBCresume(
 	}
 	/* TODO: Consider peephole opt. */
 	objResultPtr = TCONST(!b);
+	TRACE_WITH_OBJ(("%s => ", O2S(valuePtr)), objResultPtr);
 	NEXT_INST_F(1, 1, 1);
     }
 
     case INST_BITNOT:
 	valuePtr = OBJ_AT_TOS;
+	TRACE(("\"%.20s\" => ", O2S(valuePtr)));
 	if ((GetNumberFromObj(NULL, valuePtr, &ptr1, &type1) != TCL_OK)
 		|| (type1==TCL_NUMBER_NAN) || (type1==TCL_NUMBER_DOUBLE)) {
 	    /*
 	     * ... ~$NonInteger => raise an error.
 	     */
 
-	    TRACE(("\"%.20s\" => ILLEGAL TYPE %s \n", O2S(valuePtr),
+	    TRACE_APPEND(("ERROR: illegal type %s\n",
 		    (valuePtr->typePtr? valuePtr->typePtr->name : "null")));
 	    DECACHE_STACK_INFO();
 	    IllegalExprOperandType(interp, pc, valuePtr);
@@ -5255,23 +6703,28 @@ TEBCresume(
 	    l1 = *((const long *) ptr1);
 	    if (Tcl_IsShared(valuePtr)) {
 		TclNewLongObj(objResultPtr, ~l1);
+		TRACE_APPEND(("%s\n", O2S(objResultPtr)));
 		NEXT_INST_F(1, 1, 1);
 	    }
 	    TclSetLongObj(valuePtr, ~l1);
+	    TRACE_APPEND(("%s\n", O2S(valuePtr)));
 	    NEXT_INST_F(1, 0, 0);
 	}
 	objResultPtr = ExecuteExtendedUnaryMathOp(*pc, valuePtr);
 	if (objResultPtr != NULL) {
+	    TRACE_APPEND(("%s\n", O2S(objResultPtr)));
 	    NEXT_INST_F(1, 1, 1);
 	} else {
+	    TRACE_APPEND(("%s\n", O2S(valuePtr)));
 	    NEXT_INST_F(1, 0, 0);
 	}
 
     case INST_UMINUS:
 	valuePtr = OBJ_AT_TOS;
+	TRACE(("\"%.20s\" => ", O2S(valuePtr)));
 	if ((GetNumberFromObj(NULL, valuePtr, &ptr1, &type1) != TCL_OK)
 		|| IsErroringNaNType(type1)) {
-	    TRACE(("\"%.20s\" => ILLEGAL TYPE %s \n", O2S(valuePtr),
+	    TRACE_APPEND(("ERROR: illegal type %s \n",
 		    (valuePtr->typePtr? valuePtr->typePtr->name : "null")));
 	    DECACHE_STACK_INFO();
 	    IllegalExprOperandType(interp, pc, valuePtr);
@@ -5281,23 +6734,28 @@ TEBCresume(
 	switch (type1) {
 	case TCL_NUMBER_NAN:
 	    /* -NaN => NaN */
+	    TRACE_APPEND(("%s\n", O2S(valuePtr)));
 	    NEXT_INST_F(1, 0, 0);
 	case TCL_NUMBER_LONG:
 	    l1 = *((const long *) ptr1);
 	    if (l1 != LONG_MIN) {
 		if (Tcl_IsShared(valuePtr)) {
 		    TclNewLongObj(objResultPtr, -l1);
+		    TRACE_APPEND(("%s\n", O2S(objResultPtr)));
 		    NEXT_INST_F(1, 1, 1);
 		}
 		TclSetLongObj(valuePtr, -l1);
+		TRACE_APPEND(("%s\n", O2S(valuePtr)));
 		NEXT_INST_F(1, 0, 0);
 	    }
 	    /* FALLTHROUGH */
 	}
 	objResultPtr = ExecuteExtendedUnaryMathOp(*pc, valuePtr);
 	if (objResultPtr != NULL) {
+	    TRACE_APPEND(("%s\n", O2S(objResultPtr)));
 	    NEXT_INST_F(1, 1, 1);
 	} else {
+	    TRACE_APPEND(("%s\n", O2S(valuePtr)));
 	    NEXT_INST_F(1, 0, 0);
 	}
 
@@ -5310,6 +6768,7 @@ TEBCresume(
 	 */
 
 	valuePtr = OBJ_AT_TOS;
+	TRACE(("\"%.20s\" => ", O2S(valuePtr)));
 
 	if (GetNumberFromObj(NULL, valuePtr, &ptr1, &type1) != TCL_OK) {
 	    if (*pc == INST_UPLUS) {
@@ -5317,7 +6776,7 @@ TEBCresume(
 		 * ... +$NonNumeric => raise an error.
 		 */
 
-		TRACE(("\"%.20s\" => ILLEGAL TYPE %s \n", O2S(valuePtr),
+		TRACE_APPEND(("ERROR: illegal type %s\n",
 			(valuePtr->typePtr? valuePtr->typePtr->name:"null")));
 		DECACHE_STACK_INFO();
 		IllegalExprOperandType(interp, pc, valuePtr);
@@ -5326,7 +6785,7 @@ TEBCresume(
 	    }
 
 	    /* ... TryConvertToNumeric($NonNumeric) is acceptable */
-	    TRACE(("\"%.20s\" => not numeric\n", O2S(valuePtr)));
+	    TRACE_APPEND(("not numeric\n"));
 	    NEXT_INST_F(1, 0, 0);
 	}
 	if (IsErroringNaNType(type1)) {
@@ -5335,7 +6794,7 @@ TEBCresume(
 		 * ... +$NonNumeric => raise an error.
 		 */
 
-		TRACE(("\"%.20s\" => ILLEGAL TYPE %s \n", O2S(valuePtr),
+		TRACE_APPEND(("ERROR: illegal type %s\n",
 			(valuePtr->typePtr? valuePtr->typePtr->name:"null")));
 		DECACHE_STACK_INFO();
 		IllegalExprOperandType(interp, pc, valuePtr);
@@ -5345,8 +6804,7 @@ TEBCresume(
 		 * Numeric conversion of NaN -> error.
 		 */
 
-		TRACE(("\"%.20s\" => IEEE FLOATING PT ERROR\n",
-			O2S(objResultPtr)));
+		TRACE_APPEND(("ERROR: IEEE floating pt error\n"));
 		DECACHE_STACK_INFO();
 		TclExprFloatError(interp, *((const double *) ptr1));
 		CACHE_STACK_INFO();
@@ -5364,7 +6822,7 @@ TEBCresume(
 	 */
 
 	if (valuePtr->bytes == NULL) {
-	    TRACE(("\"%.20s\" => numeric, same Tcl_Obj\n", O2S(valuePtr)));
+	    TRACE_APPEND(("numeric, same Tcl_Obj\n"));
 	    NEXT_INST_F(1, 0, 0);
 	}
 	if (Tcl_IsShared(valuePtr)) {
@@ -5379,11 +6837,11 @@ TEBCresume(
 	    valuePtr->bytes = NULL;
 	    objResultPtr = Tcl_DuplicateObj(valuePtr);
 	    valuePtr->bytes = savedString;
-	    TRACE(("\"%.20s\" => numeric, new Tcl_Obj\n", O2S(valuePtr)));
+	    TRACE_APPEND(("numeric, new Tcl_Obj\n"));
 	    NEXT_INST_F(1, 1, 1);
 	}
 	TclInvalidateStringRep(valuePtr);
-	TRACE(("\"%.20s\" => numeric, same Tcl_Obj\n", O2S(valuePtr)));
+	TRACE_APPEND(("numeric, same Tcl_Obj\n"));
 	NEXT_INST_F(1, 0, 0);
     }
 
@@ -5392,6 +6850,17 @@ TEBCresume(
      * -----------------------------------------------------------------
      */
 
+    case INST_TRY_CVT_TO_BOOLEAN:
+	valuePtr = OBJ_AT_TOS;
+	if (valuePtr->typePtr == &tclBooleanType) {
+	    objResultPtr = TCONST(1);
+	} else {
+	    int result = (TclSetBooleanFromAny(NULL, valuePtr) == TCL_OK);
+	    objResultPtr = TCONST(result);
+	}
+	TRACE_WITH_OBJ(("\"%.30s\" => ", O2S(valuePtr)), objResultPtr);
+	NEXT_INST_F(1, 0, 1);
+
     case INST_BREAK:
 	/*
 	DECACHE_STACK_INFO();
@@ -5400,6 +6869,7 @@ TEBCresume(
 	*/
 	result = TCL_BREAK;
 	cleanup = 0;
+	TRACE(("=> BREAK!\n"));
 	goto processExceptionReturn;
 
     case INST_CONTINUE:
@@ -5410,6 +6880,7 @@ TEBCresume(
 	*/
 	result = TCL_CONTINUE;
 	cleanup = 0;
+	TRACE(("=> CONTINUE!\n"));
 	goto processExceptionReturn;
 
     {
@@ -5421,7 +6892,7 @@ TEBCresume(
 	int varIndex, valIndex, continueLoop, j, iterTmpIndex;
 	long i;
 
-    case INST_FOREACH_START4:
+    case INST_FOREACH_START4: /* DEPRECATED */
 	/*
 	 * Initialize the temporary local var that holds the count of the
 	 * number of iterations of the loop body to -1.
@@ -5454,13 +6925,14 @@ TEBCresume(
 	NEXT_INST_F(5, 0, 0);
 #endif
 
-    case INST_FOREACH_STEP4:
+    case INST_FOREACH_STEP4: /* DEPRECATED */
 	/*
 	 * "Step" a foreach loop (i.e., begin its next iteration) by assigning
 	 * the next value list element to each loop var.
 	 */
 
 	opnd = TclGetUInt4AtPtr(pc+1);
+	TRACE(("%u => ", opnd));
 	infoPtr = codePtr->auxDataArrayPtr[opnd].clientData;
 	numLists = infoPtr->numLists;
 
@@ -5487,8 +6959,8 @@ TEBCresume(
 	    listVarPtr = LOCAL(listTmpIndex);
 	    listPtr = listVarPtr->value.objPtr;
 	    if (TclListObjLength(interp, listPtr, &listLen) != TCL_OK) {
-		TRACE_WITH_OBJ(("%u => ERROR converting list %ld, \"%s\": ",
-			opnd, i, O2S(listPtr)), Tcl_GetObjResult(interp));
+		TRACE_APPEND(("ERROR converting list %ld, \"%.30s\": %s\n",
+			i, O2S(listPtr), O2S(Tcl_GetObjResult(interp))));
 		goto gotError;
 	    }
 	    if (listLen > iterNum * numVars) {
@@ -5543,9 +7015,9 @@ TEBCresume(
 			if (TclPtrSetVar(interp, varPtr, NULL, NULL, NULL,
 				valuePtr, TCL_LEAVE_ERR_MSG, varIndex)==NULL){
 			    CACHE_STACK_INFO();
-			    TRACE_WITH_OBJ((
-				    "%u => ERROR init. index temp %d: ",
-				    opnd,varIndex), Tcl_GetObjResult(interp));
+			    TRACE_APPEND((
+				    "ERROR init. index temp %d: %s\n",
+				    varIndex, O2S(Tcl_GetObjResult(interp))));
 			    TclDecrRefCount(listPtr);
 			    goto gotError;
 			}
@@ -5557,8 +7029,8 @@ TEBCresume(
 		listTmpIndex++;
 	    }
 	}
-	TRACE(("%u => %d lists, iter %d, %s loop\n", opnd, numLists,
-		iterNum, (continueLoop? "continue" : "exit")));
+	TRACE_APPEND(("%d lists, iter %d, %s loop\n",
+		numLists, iterNum, (continueLoop? "continue" : "exit")));
 
 	/*
 	 * Run-time peep-hole optimisation: the compiler ALWAYS follows
@@ -5572,6 +7044,200 @@ TEBCresume(
 	} else {
 	    NEXT_INST_F((continueLoop? 5 : TclGetInt4AtPtr(pc+1)), 0, 0);
 	}
+
+    }
+    {
+	ForeachInfo *infoPtr;
+	Tcl_Obj *listPtr, **elements, *tmpPtr;
+	ForeachVarList *varListPtr;
+	int numLists, iterMax, listLen, numVars;
+	int iterTmp, iterNum, listTmpDepth;
+	int varIndex, valIndex, j;
+	long i;
+
+    case INST_FOREACH_START:
+	/*
+	 * Initialize the data for the looping construct, pushing the
+	 * corresponding Tcl_Objs to the stack.
+	 */
+
+	opnd = TclGetUInt4AtPtr(pc+1);
+	infoPtr = codePtr->auxDataArrayPtr[opnd].clientData;
+	numLists = infoPtr->numLists;
+	TRACE(("%u => ", opnd));
+
+	/*
+	 * Compute the number of iterations that will be run: iterMax
+	 */
+
+	iterMax = 0;
+	listTmpDepth = numLists-1;
+	for (i = 0;  i < numLists;  i++) {
+	    varListPtr = infoPtr->varLists[i];
+	    numVars = varListPtr->numVars;
+	    listPtr = OBJ_AT_DEPTH(listTmpDepth);
+	    if (TclListObjLength(interp, listPtr, &listLen) != TCL_OK) {
+		TRACE_APPEND(("ERROR converting list %ld, \"%s\": %s",
+			i, O2S(listPtr), O2S(Tcl_GetObjResult(interp))));
+		goto gotError;
+	    }
+	    if (Tcl_IsShared(listPtr)) {
+		objPtr = TclListObjCopy(NULL, listPtr);
+		Tcl_IncrRefCount(objPtr);
+		Tcl_DecrRefCount(listPtr);
+		OBJ_AT_DEPTH(listTmpDepth) = objPtr;
+	    }
+	    iterTmp = (listLen + (numVars - 1))/numVars;
+	    if (iterTmp > iterMax) {
+		iterMax = iterTmp;
+	    }
+	    listTmpDepth--;
+	}
+
+	/*
+	 * Store the iterNum and iterMax in a single Tcl_Obj; we keep a
+	 * nul-string obj with the pointer stored in the ptrValue so that the
+	 * thing is properly garbage collected. THIS OBJ MAKES NO SENSE, but
+	 * it will never leave this scope and is read-only.
+	 */
+
+	TclNewObj(tmpPtr);
+	tmpPtr->internalRep.twoPtrValue.ptr1 = INT2PTR(0);
+	tmpPtr->internalRep.twoPtrValue.ptr2 = INT2PTR(iterMax);
+	PUSH_OBJECT(tmpPtr); /* iterCounts object */
+
+	/*
+	 * Store a pointer to the ForeachInfo struct; same dirty trick
+	 * as above
+	 */
+
+	TclNewObj(tmpPtr);
+	tmpPtr->internalRep.otherValuePtr = infoPtr;
+	PUSH_OBJECT(tmpPtr); /* infoPtr object */
+	TRACE_APPEND(("jump to loop step\n"));
+
+	/*
+	 * Jump directly to the INST_FOREACH_STEP instruction; the C code just
+	 * falls through.
+	 */
+
+	pc += 5 - infoPtr->loopCtTemp;
+
+    case INST_FOREACH_STEP:
+	/*
+	 * "Step" a foreach loop (i.e., begin its next iteration) by assigning
+	 * the next value list element to each loop var.
+	 */
+
+	tmpPtr = OBJ_AT_TOS;
+	infoPtr = tmpPtr->internalRep.otherValuePtr;
+	numLists = infoPtr->numLists;
+	TRACE(("=> "));
+
+	tmpPtr = OBJ_AT_DEPTH(1);
+	iterNum = PTR2INT(tmpPtr->internalRep.twoPtrValue.ptr1);
+	iterMax = PTR2INT(tmpPtr->internalRep.twoPtrValue.ptr2);
+
+	/*
+	 * If some list still has a remaining list element iterate one more
+	 * time. Assign to var the next element from its value list.
+	 */
+
+	if (iterNum < iterMax) {
+	    /*
+	     * Set the variables and jump back to run the body
+	     */
+
+	    tmpPtr->internalRep.twoPtrValue.ptr1 = INT2PTR(iterNum + 1);
+
+	    listTmpDepth = numLists + 1;
+
+	    for (i = 0;  i < numLists;  i++) {
+		varListPtr = infoPtr->varLists[i];
+		numVars = varListPtr->numVars;
+
+		listPtr = OBJ_AT_DEPTH(listTmpDepth);
+		TclListObjGetElements(interp, listPtr, &listLen, &elements);
+
+		valIndex = (iterNum * numVars);
+		for (j = 0;  j < numVars;  j++) {
+		    if (valIndex >= listLen) {
+			TclNewObj(valuePtr);
+		    } else {
+			valuePtr = elements[valIndex];
+		    }
+
+		    varIndex = varListPtr->varIndexes[j];
+		    varPtr = LOCAL(varIndex);
+		    while (TclIsVarLink(varPtr)) {
+			varPtr = varPtr->value.linkPtr;
+		    }
+		    if (TclIsVarDirectWritable(varPtr)) {
+			value2Ptr = varPtr->value.objPtr;
+			if (valuePtr != value2Ptr) {
+			    if (value2Ptr != NULL) {
+				TclDecrRefCount(value2Ptr);
+			    }
+			    varPtr->value.objPtr = valuePtr;
+			    Tcl_IncrRefCount(valuePtr);
+			}
+		    } else {
+			DECACHE_STACK_INFO();
+			if (TclPtrSetVar(interp, varPtr, NULL, NULL, NULL,
+				valuePtr, TCL_LEAVE_ERR_MSG, varIndex)==NULL){
+			    CACHE_STACK_INFO();
+			    TRACE_APPEND(("ERROR init. index temp %d: %.30s",
+				    varIndex, O2S(Tcl_GetObjResult(interp))));
+			    goto gotError;
+			}
+			CACHE_STACK_INFO();
+		    }
+		    valIndex++;
+		}
+		listTmpDepth--;
+	    }
+	    TRACE_APPEND(("jump to loop start\n"));
+	    /* loopCtTemp being 'misused' for storing the jump size */
+	    NEXT_INST_F(infoPtr->loopCtTemp, 0, 0);
+	}
+
+	TRACE_APPEND(("loop has no more iterations\n"));
+#ifdef TCL_COMPILE_DEBUG
+	NEXT_INST_F(1, 0, 0);
+#else
+	/*
+	 * FALL THROUGH
+	 */
+	pc++;
+#endif
+
+    case INST_FOREACH_END:
+	/* THIS INSTRUCTION IS ONLY CALLED AS A BREAK TARGET */
+	tmpPtr = OBJ_AT_TOS;
+	infoPtr = tmpPtr->internalRep.otherValuePtr;
+	numLists = infoPtr->numLists;
+	TRACE(("=> loop terminated\n"));
+	NEXT_INST_V(1, numLists+2, 0);
+
+    case INST_LMAP_COLLECT:
+	/*
+	 * This instruction is only issued by lmap. The stack is:
+	 *   - result
+	 *   - infoPtr
+	 *   - loop counters
+	 *   - valLists
+	 *   - collecting obj (unshared)
+	 * The instruction lappends the result to the collecting obj.
+	 */
+
+	tmpPtr = OBJ_AT_DEPTH(1);
+	infoPtr = tmpPtr->internalRep.otherValuePtr;
+	numLists = infoPtr->numLists;
+	TRACE_APPEND(("=> appending to list at depth %d\n", 3 + numLists));
+	
+	objPtr = OBJ_AT_DEPTH(3 + numLists);
+	Tcl_ListObjAppendElement(NULL, objPtr, OBJ_AT_TOS);
+	NEXT_INST_F(1, 1, 0);
     }
 
     case INST_BEGIN_CATCH4:
@@ -5633,7 +7299,8 @@ TEBCresume(
 	if (code < TCL_ERROR || code > TCL_CONTINUE) {
 	    code = TCL_CONTINUE + 1;
 	}
-	NEXT_INST_F(2*code -1, 1, 0);
+	TRACE(("\"%s\" => jump offset %d\n", O2S(OBJ_AT_TOS), 2*code-1));
+	NEXT_INST_F(2*code-1, 1, 0);
     }
 
     /*
@@ -5648,41 +7315,81 @@ TEBCresume(
 	Tcl_DictSearch *searchPtr;
 	DictUpdateInfo *duiPtr;
 
+    case INST_DICT_VERIFY:
+	dictPtr = OBJ_AT_TOS;
+	TRACE(("\"%.30s\" => ", O2S(dictPtr)));
+	if (Tcl_DictObjSize(interp, dictPtr, &done) != TCL_OK) {
+	    TRACE_APPEND(("ERROR verifying dictionary nature of \"%.30s\": %s\n",
+		    O2S(dictPtr), O2S(Tcl_GetObjResult(interp))));
+	    goto gotError;
+	}
+	TRACE_APPEND(("OK\n"));
+	NEXT_INST_F(1, 1, 0);
+
     case INST_DICT_GET:
+    case INST_DICT_EXISTS: {
+	register Tcl_Interp *interp2 = interp;
+	register int found;
+
 	opnd = TclGetUInt4AtPtr(pc+1);
 	TRACE(("%u => ", opnd));
 	dictPtr = OBJ_AT_DEPTH(opnd);
+	if (*pc == INST_DICT_EXISTS) {
+	    interp2 = NULL;
+	}
 	if (opnd > 1) {
-	    dictPtr = TclTraceDictPath(interp, dictPtr, opnd-1,
+	    dictPtr = TclTraceDictPath(interp2, dictPtr, opnd-1,
 		    &OBJ_AT_DEPTH(opnd-1), DICT_PATH_READ);
 	    if (dictPtr == NULL) {
+		if (*pc == INST_DICT_EXISTS) {
+		    found = 0;
+		    goto afterDictExists;
+		}
 		TRACE_WITH_OBJ((
-			"%u => ERROR tracing dictionary path into \"%s\": ",
-			opnd, O2S(OBJ_AT_DEPTH(opnd))),
+			"ERROR tracing dictionary path into \"%.30s\": ",
+			O2S(OBJ_AT_DEPTH(opnd))),
 			Tcl_GetObjResult(interp));
 		goto gotError;
 	    }
 	}
-	if (Tcl_DictObjGet(interp, dictPtr, OBJ_AT_TOS,
+	if (Tcl_DictObjGet(interp2, dictPtr, OBJ_AT_TOS,
 		&objResultPtr) == TCL_OK) {
-	    if (objResultPtr) {
-		TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
-		NEXT_INST_V(5, opnd+1, 1);
+	    if (*pc == INST_DICT_EXISTS) {
+		found = (objResultPtr ? 1 : 0);
+		goto afterDictExists;
+	    }
+	    if (!objResultPtr) {
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"key \"%s\" not known in dictionary",
+			TclGetString(OBJ_AT_TOS)));
+		DECACHE_STACK_INFO();
+		Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "DICT",
+			TclGetString(OBJ_AT_TOS), NULL);
+		CACHE_STACK_INFO();
+		TRACE_ERROR(interp);
+		goto gotError;
 	    }
-	    DECACHE_STACK_INFO();
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "key \"%s\" not known in dictionary",
-		    TclGetString(OBJ_AT_TOS)));
-	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "DICT",
-		    TclGetString(OBJ_AT_TOS), NULL);
-	    CACHE_STACK_INFO();
-	    TRACE_WITH_OBJ(("%u => ERROR ", opnd), Tcl_GetObjResult(interp));
+	    TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
+	    NEXT_INST_V(5, opnd+1, 1);
+	} else if (*pc != INST_DICT_EXISTS) {
+	    TRACE_APPEND(("ERROR reading leaf dictionary key \"%.30s\": %s",
+		    O2S(dictPtr), O2S(Tcl_GetObjResult(interp))));
+	    goto gotError;
 	} else {
-	    TRACE_WITH_OBJ((
-		    "%u => ERROR reading leaf dictionary key \"%s\": ",
-		    opnd, O2S(dictPtr)), Tcl_GetObjResult(interp));
+	    found = 0;
 	}
-	goto gotError;
+    afterDictExists:
+	TRACE_APPEND(("%d\n", found));
+
+	/*
+	 * The INST_DICT_EXISTS instruction is usually followed by a
+	 * conditional jump, so we can take advantage of this to do some
+	 * peephole optimization (note that we're careful to not close out
+	 * someone doing something else).
+	 */
+
+	JUMP_PEEPHOLE_V(found, 5, opnd+1);
+    }
 
     case INST_DICT_SET:
     case INST_DICT_UNSET:
@@ -5755,8 +7462,8 @@ TEBCresume(
 	    if (allocateDict) {
 		TclDecrRefCount(dictPtr);
 	    }
-	    TRACE_WITH_OBJ(("%u %u => ERROR updating dictionary: ",
-		    opnd, opnd2), Tcl_GetObjResult(interp));
+	    TRACE_APPEND(("ERROR updating dictionary: %s\n",
+		    O2S(Tcl_GetObjResult(interp))));
 	    goto checkForCatch;
 	}
 
@@ -5778,8 +7485,7 @@ TEBCresume(
 	    CACHE_STACK_INFO();
 	    TclDecrRefCount(dictPtr);
 	    if (objResultPtr == NULL) {
-		TRACE_APPEND(("ERROR: %.30s\n",
-			O2S(Tcl_GetObjResult(interp))));
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	}
@@ -5788,7 +7494,7 @@ TEBCresume(
 	    NEXT_INST_V(10, cleanup, 0);
 	}
 #endif
-	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
+	TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
 	NEXT_INST_V(9, cleanup, 1);
 
     case INST_DICT_APPEND:
@@ -5821,6 +7527,7 @@ TEBCresume(
 	    if (allocateDict) {
 		TclDecrRefCount(dictPtr);
 	    }
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 
@@ -5869,6 +7576,7 @@ TEBCresume(
 		    if (allocateDict) {
 			TclDecrRefCount(dictPtr);
 		    }
+		    TRACE_ERROR(interp);
 		    goto gotError;
 		}
 		Tcl_DictObjPut(NULL, dictPtr, OBJ_UNDER_TOS, valuePtr);
@@ -5878,6 +7586,7 @@ TEBCresume(
 		    if (allocateDict) {
 			TclDecrRefCount(dictPtr);
 		    }
+		    TRACE_ERROR(interp);
 		    goto gotError;
 		}
 
@@ -5914,8 +7623,7 @@ TEBCresume(
 	    CACHE_STACK_INFO();
 	    TclDecrRefCount(dictPtr);
 	    if (objResultPtr == NULL) {
-		TRACE_APPEND(("ERROR: %.30s\n",
-			O2S(Tcl_GetObjResult(interp))));
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	}
@@ -5934,7 +7642,16 @@ TEBCresume(
 	searchPtr = ckalloc(sizeof(Tcl_DictSearch));
 	if (Tcl_DictObjFirst(interp, dictPtr, searchPtr, &keyPtr,
 		&valuePtr, &done) != TCL_OK) {
+
+	    /*
+	     * dictPtr is no longer on the stack, and we're not
+	     * moving it into the intrep of an iterator.  We need
+	     * to drop the refcount [Tcl Bug 9b352768e6].
+	     */
+
+	    Tcl_DecrRefCount(dictPtr);
 	    ckfree(searchPtr);
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	TclNewObj(statePtr);
@@ -5970,8 +7687,9 @@ TEBCresume(
 	    PUSH_OBJECT(valuePtr);
 	    PUSH_OBJECT(keyPtr);
 	}
+	TRACE_APPEND(("\"%.30s\" \"%.30s\" %d\n",
+		O2S(OBJ_UNDER_TOS), O2S(OBJ_AT_TOS), done));
 
-#ifndef TCL_COMPILE_DEBUG
 	/*
 	 * The INST_DICT_FIRST and INST_DICT_NEXT instructsions are always
 	 * followed by a conditional jump, so we can take advantage of this to
@@ -5979,37 +7697,17 @@ TEBCresume(
 	 * out someone doing something else).
 	 */
 
-	pc += 5;
-	switch (*pc) {
-	case INST_JUMP_FALSE1:
-	    NEXT_INST_F((done ? 2 : TclGetInt1AtPtr(pc+1)), 0, 0);
-	case INST_JUMP_FALSE4:
-	    NEXT_INST_F((done ? 5 : TclGetInt4AtPtr(pc+1)), 0, 0);
-	case INST_JUMP_TRUE1:
-	    NEXT_INST_F((done ? TclGetInt1AtPtr(pc+1) : 2), 0, 0);
-	case INST_JUMP_TRUE4:
-	    NEXT_INST_F((done ? TclGetInt4AtPtr(pc+1) : 5), 0, 0);
-	default:
-	    pc -= 5;
-	    /* fall through to non-debug handling */
-	}
-#endif
-
-	TRACE_APPEND(("\"%.30s\" \"%.30s\" %d",
-		O2S(OBJ_UNDER_TOS), O2S(OBJ_AT_TOS), done));
-	objResultPtr = TCONST(done);
-	/* TODO: consider opt like INST_FOREACH_STEP4 */
-	NEXT_INST_F(5, 0, 1);
+	JUMP_PEEPHOLE_F(done, 5, 0);
 
     case INST_DICT_UPDATE_START:
 	opnd = TclGetUInt4AtPtr(pc+1);
 	opnd2 = TclGetUInt4AtPtr(pc+5);
+	TRACE(("%u => ", opnd));
 	varPtr = LOCAL(opnd);
 	duiPtr = codePtr->auxDataArrayPtr[opnd2].clientData;
 	while (TclIsVarLink(varPtr)) {
 	    varPtr = varPtr->value.linkPtr;
 	}
-	TRACE(("%u => ", opnd));
 	if (TclIsVarDirectReadable(varPtr)) {
 	    dictPtr = varPtr->value.objPtr;
 	} else {
@@ -6018,11 +7716,13 @@ TEBCresume(
 		    TCL_LEAVE_ERR_MSG, opnd);
 	    CACHE_STACK_INFO();
 	    if (dictPtr == NULL) {
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	}
 	if (TclListObjGetElements(interp, OBJ_AT_TOS, &length,
 		&keyPtrPtr) != TCL_OK) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	if (length != duiPtr->length) {
@@ -6031,6 +7731,7 @@ TEBCresume(
 	for (i=0 ; i<length ; i++) {
 	    if (Tcl_DictObjGet(interp, dictPtr, keyPtrPtr[i],
 		    &valuePtr) != TCL_OK) {
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	    varPtr = LOCAL(duiPtr->varIndices[i]);
@@ -6046,21 +7747,23 @@ TEBCresume(
 		    valuePtr, TCL_LEAVE_ERR_MSG,
 		    duiPtr->varIndices[i]) == NULL) {
 		CACHE_STACK_INFO();
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	    CACHE_STACK_INFO();
 	}
+	TRACE_APPEND(("OK\n"));
 	NEXT_INST_F(9, 0, 0);
 
     case INST_DICT_UPDATE_END:
 	opnd = TclGetUInt4AtPtr(pc+1);
 	opnd2 = TclGetUInt4AtPtr(pc+5);
+	TRACE(("%u => ", opnd));
 	varPtr = LOCAL(opnd);
 	duiPtr = codePtr->auxDataArrayPtr[opnd2].clientData;
 	while (TclIsVarLink(varPtr)) {
 	    varPtr = varPtr->value.linkPtr;
 	}
-	TRACE(("%u => ", opnd));
 	if (TclIsVarDirectReadable(varPtr)) {
 	    dictPtr = varPtr->value.objPtr;
 	} else {
@@ -6069,11 +7772,13 @@ TEBCresume(
 	    CACHE_STACK_INFO();
 	}
 	if (dictPtr == NULL) {
+	    TRACE_APPEND(("storage was unset\n"));
 	    NEXT_INST_F(9, 1, 0);
 	}
 	if (Tcl_DictObjSize(interp, dictPtr, &length) != TCL_OK
 		|| TclListObjGetElements(interp, OBJ_AT_TOS, &length,
 			&keyPtrPtr) != TCL_OK) {
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	allocdict = Tcl_IsShared(dictPtr);
@@ -6119,26 +7824,27 @@ TEBCresume(
 		if (allocdict) {
 		    TclDecrRefCount(dictPtr);
 		}
+		TRACE_ERROR(interp);
 		goto gotError;
 	    }
 	}
+	TRACE_APPEND(("written back\n"));
 	NEXT_INST_F(9, 1, 0);
 
     case INST_DICT_EXPAND:
 	dictPtr = OBJ_UNDER_TOS;
 	listPtr = OBJ_AT_TOS;
+	TRACE(("\"%.30s\" \"%.30s\" =>", O2S(dictPtr), O2S(listPtr)));
 	if (TclListObjGetElements(interp, listPtr, &objc, &objv) != TCL_OK) {
-	    TRACE_WITH_OBJ(("%.30s %.30s => ERROR: ",
-		    O2S(dictPtr), O2S(listPtr)), Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	objResultPtr = TclDictWithInit(interp, dictPtr, objc, objv);
 	if (objResultPtr == NULL) {
-	    TRACE_WITH_OBJ(("%.30s %.30s => ERROR: ",
-		    O2S(dictPtr), O2S(listPtr)), Tcl_GetObjResult(interp));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
-	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
+	TRACE_APPEND(("\"%.30s\"\n", O2S(objResultPtr)));
 	NEXT_INST_F(1, 2, 1);
 
     case INST_DICT_RECOMBINE_STK:
@@ -6148,14 +7854,14 @@ TEBCresume(
 	TRACE(("\"%.30s\" \"%.30s\" \"%.30s\" => ",
 		O2S(varNamePtr), O2S(valuePtr), O2S(keysPtr)));
 	if (TclListObjGetElements(interp, listPtr, &objc, &objv) != TCL_OK) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    TclDecrRefCount(keysPtr);
 	    goto gotError;
 	}
 	varPtr = TclObjLookupVarEx(interp, varNamePtr, NULL,
 		TCL_LEAVE_ERR_MSG, "set", 1, 1, &arrayPtr);
 	if (varPtr == NULL) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    TclDecrRefCount(keysPtr);
 	    goto gotError;
 	}
@@ -6165,7 +7871,7 @@ TEBCresume(
 	CACHE_STACK_INFO();
 	TclDecrRefCount(keysPtr);
 	if (result != TCL_OK) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	TRACE_APPEND(("OK\n"));
@@ -6179,7 +7885,7 @@ TEBCresume(
 	TRACE(("%u <- \"%.30s\" \"%.30s\" => ", opnd, O2S(valuePtr),
 		O2S(keysPtr)));
 	if (TclListObjGetElements(interp, listPtr, &objc, &objv) != TCL_OK) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	while (TclIsVarLink(varPtr)) {
@@ -6190,7 +7896,7 @@ TEBCresume(
 		objc, objv, keysPtr);
 	CACHE_STACK_INFO();
 	if (result != TCL_OK) {
-	    TRACE_APPEND(("ERROR: %.30s\n", O2S(Tcl_GetObjResult(interp))));
+	    TRACE_ERROR(interp);
 	    goto gotError;
 	}
 	TRACE_APPEND(("OK\n"));
@@ -6225,7 +7931,7 @@ TEBCresume(
 	 */
 
     processExceptionReturn:
-#if TCL_COMPILE_DEBUG
+#ifdef TCL_COMPILE_DEBUG
 	switch (*pc) {
 	case INST_INVOKE_STK1:
 	    opnd = TclGetUInt1AtPtr(pc+1);
@@ -6282,14 +7988,14 @@ TEBCresume(
 		    rangePtr->codeOffset, rangePtr->continueOffset));
 	    NEXT_INST_F(0, 0, 0);
 	}
-#if TCL_COMPILE_DEBUG
+#ifdef TCL_COMPILE_DEBUG
 	if (traceInstructions) {
 	    objPtr = Tcl_GetObjResult(interp);
 	    if ((result != TCL_ERROR) && (result != TCL_RETURN)) {
-		TRACE_APPEND(("OTHER RETURN CODE %d, result= \"%s\"\n ",
+		TRACE_APPEND(("OTHER RETURN CODE %d, result=\"%.30s\"\n ",
 			result, O2S(objPtr)));
 	    } else {
-		TRACE_APPEND(("%s, result= \"%s\"\n",
+		TRACE_APPEND(("%s, result=\"%.30s\"\n",
 			StringForResultCode(result), O2S(objPtr)));
 	    }
 	}
@@ -6302,8 +8008,8 @@ TEBCresume(
 	 */
 
     divideByZero:
-	DECACHE_STACK_INFO();
 	Tcl_SetObjResult(interp, Tcl_NewStringObj("divide by zero", -1));
+	DECACHE_STACK_INFO();
 	Tcl_SetErrorCode(interp, "ARITH", "DIVZERO", "divide by zero", NULL);
 	CACHE_STACK_INFO();
 	goto gotError;
@@ -6314,9 +8020,9 @@ TEBCresume(
 	 */
 
     exponOfZero:
-	DECACHE_STACK_INFO();
 	Tcl_SetObjResult(interp, Tcl_NewStringObj(
 		"exponentiation of zero by negative power", -1));
+	DECACHE_STACK_INFO();
 	Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
 		"exponentiation of zero by negative power", NULL);
 	CACHE_STACK_INFO();
@@ -6344,7 +8050,7 @@ TEBCresume(
 	if ((result == TCL_ERROR) && !(iPtr->flags & ERR_ALREADY_LOGGED)) {
 	    const unsigned char *pcBeg;
 
-	    bytes = GetSrcInfoForPc(pc, codePtr, &length, &pcBeg);
+	    bytes = GetSrcInfoForPc(pc, codePtr, &length, &pcBeg, NULL);
 	    DECACHE_STACK_INFO();
 	    TclLogCommandInfo(interp, codePtr->source, bytes,
 		    bytes ? length : 0, pcBeg, tosPtr);
@@ -6496,6 +8202,42 @@ TEBCresume(
     TclStackFree(interp, TD);	/* free my stack */
 
     return result;
+
+    /*
+     * INST_START_CMD failure case removed where it doesn't bother that much
+     *
+     * Remark that if the interpreter is marked for deletion its
+     * compileEpoch is modified, so that the epoch check also verifies
+     * that the interp is not deleted. If no outside call has been made
+     * since the last check, it is safe to omit the check.
+
+     * case INST_START_CMD:
+     */
+
+	instStartCmdFailed:
+	{
+	    const char *bytes;
+
+	    checkInterp = 1;
+	    length = 0;
+
+	    /*
+	     * We used to switch to direct eval; for NRE-awareness we now
+	     * compile and eval the command so that this evaluation does not
+	     * add a new TEBC instance. [Bug 2910748]
+	     */
+
+	    if (TclInterpReady(interp) == TCL_ERROR) {
+		goto gotError;
+	    }
+
+	    codePtr->flags |= TCL_BYTECODE_RECOMPILE;
+	    bytes = GetSrcInfoForPc(pc, codePtr, &length, NULL, NULL);
+	    opnd = TclGetUInt4AtPtr(pc+1);
+	    pc += (opnd-1);
+	    PUSH_OBJECT(Tcl_NewStringObj(bytes, length));
+	    goto instEvalStk;
+	}
 }
 
 #undef codePtr
@@ -6506,6 +8248,58 @@ TEBCresume(
 #undef auxObjList
 #undef catchTop
 #undef TCONST
+
+static int
+FinalizeOONext(
+    ClientData data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    CallContext *contextPtr = data[1];
+
+    /*
+     * Reset the variable lookup frame.
+     */
+
+    iPtr->varFramePtr = data[0];
+
+    /*
+     * Restore the call chain context index as we've finished the inner invoke
+     * and want to operate in the outer context again.
+     */
+
+    contextPtr->index = PTR2INT(data[2]);
+    contextPtr->skip = PTR2INT(data[3]);
+    contextPtr->oPtr->flags &= ~FILTER_HANDLING;
+    return result;
+}
+
+static int
+FinalizeOONextFilter(
+    ClientData data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    CallContext *contextPtr = data[1];
+
+    /*
+     * Reset the variable lookup frame.
+     */
+
+    iPtr->varFramePtr = data[0];
+
+    /*
+     * Restore the call chain context index as we've finished the inner invoke
+     * and want to operate in the outer context again.
+     */
+
+    contextPtr->index = PTR2INT(data[2]);
+    contextPtr->skip = PTR2INT(data[3]);
+    contextPtr->oPtr->flags |= FILTER_HANDLING;
+    return result;
+}
 
 /*
  *----------------------------------------------------------------------
@@ -6602,7 +8396,7 @@ ExecuteExtendedBinaryMathOp(
 		return constants[0];
 	    }
 	}
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if (type1 == TCL_NUMBER_WIDE) {
 	    w1 = *((const Tcl_WideInt *)ptr1);
 	    if (type2 != TCL_NUMBER_BIG) {
@@ -6677,7 +8471,7 @@ ExecuteExtendedBinaryMathOp(
 	case TCL_NUMBER_LONG:
 	    invalid = (*((const long *)ptr2) < 0L);
 	    break;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	case TCL_NUMBER_WIDE:
 	    invalid = (*((const Tcl_WideInt *)ptr2) < (Tcl_WideInt)0);
 	    break;
@@ -6761,7 +8555,7 @@ ExecuteExtendedBinaryMathOp(
 		case TCL_NUMBER_LONG:
 		    zero = (*(const long *)ptr1 > 0L);
 		    break;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 		case TCL_NUMBER_WIDE:
 		    zero = (*(const Tcl_WideInt *)ptr1 > (Tcl_WideInt)0);
 		    break;
@@ -6782,7 +8576,7 @@ ExecuteExtendedBinaryMathOp(
 	    }
 	    shift = (int)(*(const long *)ptr2);
 
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	    /*
 	     * Handle shifts within the native wide range.
 	     */
@@ -6965,7 +8759,7 @@ ExecuteExtendedBinaryMathOp(
 	    BIG_RESULT(&bigResult);
 	}
 
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if ((type1 == TCL_NUMBER_WIDE) || (type2 == TCL_NUMBER_WIDE)) {
 	    TclGetWideIntFromObj(NULL, valuePtr, &w1);
 	    TclGetWideIntFromObj(NULL, value2Ptr, &w2);
@@ -7043,7 +8837,7 @@ ExecuteExtendedBinaryMathOp(
 	    negativeExponent = (l2 < 0);
 	    oddExponent = (int) (l2 & 1);
 	    break;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	case TCL_NUMBER_WIDE:
 	    w2 = *((const Tcl_WideInt *)ptr2);
 	    negativeExponent = (w2 < 0);
@@ -7235,7 +9029,7 @@ ExecuteExtendedBinaryMathOp(
 #if (LONG_MAX > 0x7fffffff) || !defined(TCL_WIDE_INT_IS_LONG)
 	if (type1 == TCL_NUMBER_LONG) {
 	    w1 = l1;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	} else if (type1 == TCL_NUMBER_WIDE) {
 	    w1 = *((const Tcl_WideInt *) ptr1);
 #endif
@@ -7438,7 +9232,7 @@ ExecuteExtendedBinaryMathOp(
 	    switch (opcode) {
 	    case INST_ADD:
 		wResult = w1 + w2;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 		if ((type1 == TCL_NUMBER_WIDE) || (type2 == TCL_NUMBER_WIDE))
 #endif
 		{
@@ -7454,7 +9248,7 @@ ExecuteExtendedBinaryMathOp(
 
 	    case INST_SUB:
 		wResult = w1 - w2;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 		if ((type1 == TCL_NUMBER_WIDE) || (type2 == TCL_NUMBER_WIDE))
 #endif
 		{
@@ -7580,7 +9374,7 @@ ExecuteExtendedUnaryMathOp(
 
     switch (opcode) {
     case INST_BITNOT:
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if (type == TCL_NUMBER_WIDE) {
 	    w = *((const Tcl_WideInt *) ptr);
 	    WIDE_RESULT(~w);
@@ -7602,7 +9396,7 @@ ExecuteExtendedUnaryMathOp(
 	    }
 	    TclBNInitBignumFromLong(&big, *(const long *) ptr);
 	    break;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	case TCL_NUMBER_WIDE:
 	    w = *((const Tcl_WideInt *) ptr);
 	    if (w != LLONG_MIN) {
@@ -7654,7 +9448,7 @@ TclCompareTwoNumbers(
     mp_int big1, big2;
     double d1, d2, tmp;
     long l1, l2;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
     Tcl_WideInt w1, w2;
 #endif
 
@@ -7669,7 +9463,7 @@ TclCompareTwoNumbers(
 	    l2 = *((const long *)ptr2);
 	longCompare:
 	    return (l1 < l2) ? MP_LT : ((l1 > l2) ? MP_GT : MP_EQ);
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	case TCL_NUMBER_WIDE:
 	    w2 = *((const Tcl_WideInt *)ptr2);
 	    w1 = (Tcl_WideInt)l1;
@@ -7721,7 +9515,7 @@ TclCompareTwoNumbers(
 	    return compare;
 	}
 
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
     case TCL_NUMBER_WIDE:
 	w1 = *((const Tcl_WideInt *)ptr1);
 	switch (type2) {
@@ -7782,7 +9576,7 @@ TclCompareTwoNumbers(
 	    }
 	    l1 = (long) d1;
 	    goto longCompare;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	case TCL_NUMBER_WIDE:
 	    w2 = *((const Tcl_WideInt *)ptr2);
 	    d2 = (double) w2;
@@ -7826,7 +9620,7 @@ TclCompareTwoNumbers(
     case TCL_NUMBER_BIG:
 	Tcl_TakeBignumFromObj(NULL, valuePtr, &big1);
 	switch (type2) {
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	case TCL_NUMBER_WIDE:
 #endif
 	case TCL_NUMBER_LONG:
@@ -7959,11 +9753,10 @@ ValidatePcAndStackTop(
     int stackTop,		/* Current stack top. Must be between
 				 * stackLowerBound and stackUpperBound
 				 * (inclusive). */
-    int stackLowerBound,	/* Smallest legal value for stackTop. */
     int checkStack)		/* 0 if the stack depth check should be
 				 * skipped. */
 {
-    int stackUpperBound = stackLowerBound + codePtr->maxStackDepth;
+    int stackUpperBound = codePtr->maxStackDepth;
 				/* Greatest legal value for stackTop. */
     unsigned relativePc = (unsigned) (pc - codePtr->codeStart);
     unsigned long codeStart = (unsigned long) codePtr->codeStart;
@@ -7981,13 +9774,13 @@ ValidatePcAndStackTop(
 		(unsigned) opCode, relativePc);
 	Tcl_Panic("TclNRExecuteByteCode execution failure: bad opcode");
     }
-    if (checkStack &&
-	    ((stackTop < stackLowerBound) || (stackTop > stackUpperBound))) {
+    if (checkStack && 
+	    ((stackTop < 0) || (stackTop > stackUpperBound))) {
 	int numChars;
-	const char *cmd = GetSrcInfoForPc(pc, codePtr, &numChars, NULL);
+	const char *cmd = GetSrcInfoForPc(pc, codePtr, &numChars, NULL, NULL);
 
-	fprintf(stderr, "\nBad stack top %d at pc %u in TclNRExecuteByteCode (min %i, max %i)",
-		stackTop, relativePc, stackLowerBound, stackUpperBound);
+	fprintf(stderr, "\nBad stack top %d at pc %u in TclNRExecuteByteCode (min 0, max %i)",
+		stackTop, relativePc, stackUpperBound);
 	if (cmd != NULL) {
 	    Tcl_Obj *message;
 
@@ -8034,10 +9827,12 @@ IllegalExprOperandType(
     ClientData ptr;
     int type;
     const unsigned char opcode = *pc;
-    const char *description, *operator = operatorStrings[opcode - INST_LOR];
+    const char *description, *operator = "unknown";
 
     if (opcode == INST_EXPON) {
 	operator = "**";
+    } else if (opcode <= INST_LNOT) {
+	operator = operatorStrings[opcode - INST_LOR];
     }
 
     if (GetNumberFromObj(NULL, opndPtr, &ptr, &type) != TCL_OK) {
@@ -8068,7 +9863,7 @@ IllegalExprOperandType(
 /*
  *----------------------------------------------------------------------
  *
- * TclGetSrcInfoForPc, GetSrcInfoForPc, TclGetSrcInfoForCmd --
+ * TclGetSrcInfoForPc, GetSrcInfoForPc, TclGetSourceFromFrame --
  *
  *	Given a program counter value, finds the closest command in the
  *	bytecode code unit's CmdLocation array and returns information about
@@ -8089,16 +9884,26 @@ IllegalExprOperandType(
  *----------------------------------------------------------------------
  */
 
-const char *
-TclGetSrcInfoForCmd(
-    Interp *iPtr,
-    int *lenPtr)
+Tcl_Obj *
+TclGetSourceFromFrame(
+    CmdFrame *cfPtr,
+    int objc,
+    Tcl_Obj *const objv[])
 {
-    CmdFrame *cfPtr = iPtr->cmdFramePtr;
-    ByteCode *codePtr = (ByteCode *) cfPtr->data.tebc.codePtr;
-
-    return GetSrcInfoForPc((unsigned char *) cfPtr->data.tebc.pc,
-	    codePtr, lenPtr, NULL);
+    if (cfPtr == NULL) {
+        return Tcl_NewListObj(objc, objv);
+    }
+    if (cfPtr->cmdObj == NULL) {
+        if (cfPtr->cmd == NULL) {
+	    ByteCode *codePtr = (ByteCode *) cfPtr->data.tebc.codePtr;
+
+            cfPtr->cmd = GetSrcInfoForPc((unsigned char *)
+		    cfPtr->data.tebc.pc, codePtr, &cfPtr->len, NULL, NULL);
+        }
+        cfPtr->cmdObj = Tcl_NewStringObj(cfPtr->cmd, cfPtr->len);
+        Tcl_IncrRefCount(cfPtr->cmdObj);
+    }
+    return cfPtr->cmdObj;
 }
 
 void
@@ -8107,13 +9912,16 @@ TclGetSrcInfoForPc(
 {
     ByteCode *codePtr = (ByteCode *) cfPtr->data.tebc.codePtr;
 
-    if (cfPtr->cmd.str.cmd == NULL) {
-	cfPtr->cmd.str.cmd = GetSrcInfoForPc(
+    assert(cfPtr->type == TCL_LOCATION_BC);
+
+    if (cfPtr->cmd == NULL) {
+
+	cfPtr->cmd = GetSrcInfoForPc(
 		(unsigned char *) cfPtr->data.tebc.pc, codePtr,
-		&cfPtr->cmd.str.len, NULL);
+		&cfPtr->len, NULL, NULL);
     }
 
-    if (cfPtr->cmd.str.cmd != NULL) {
+    if (cfPtr->cmd != NULL) {
 	/*
 	 * We now have the command. We can get the srcOffset back and from
 	 * there find the list of word locations for this command.
@@ -8130,7 +9938,7 @@ TclGetSrcInfoForPc(
 	    return;
 	}
 
-	srcOffset = cfPtr->cmd.str.cmd - codePtr->source;
+	srcOffset = cfPtr->cmd - codePtr->source;
 	eclPtr = Tcl_GetHashValue(hePtr);
 
 	for (i=0; i < eclPtr->nuloc; i++) {
@@ -8170,9 +9978,12 @@ GetSrcInfoForPc(
     int *lengthPtr,		/* If non-NULL, the location where the length
 				 * of the command's source should be stored.
 				 * If NULL, no length is stored. */
-    const unsigned char **pcBeg)/* If non-NULL, the bytecode location
+    const unsigned char **pcBeg,/* If non-NULL, the bytecode location
 				 * where the current instruction starts.
 				 * If NULL; no pointer is stored. */
+    int *cmdIdxPtr)		/* If non-NULL, the location where the index
+				 * of the command containing the pc should 
+				 * be stored. */
 {
     register int pcOffset = (pc - codePtr->codeStart);
     int numCmds = codePtr->numCommands;
@@ -8182,6 +9993,7 @@ GetSrcInfoForPc(
     int bestDist = INT_MAX;	/* Distance of pc to best cmd's start pc. */
     int bestSrcOffset = -1;	/* Initialized to avoid compiler warning. */
     int bestSrcLength = -1;	/* Initialized to avoid compiler warning. */
+    int bestCmdIdx = -1;
 
     if ((pcOffset < 0) || (pcOffset >= codePtr->numCodeBytes)) {
 	if (pcBeg != NULL) *pcBeg = NULL;
@@ -8249,6 +10061,7 @@ GetSrcInfoForPc(
 		bestDist = dist;
 		bestSrcOffset = srcOffset;
 		bestSrcLength = srcLen;
+		bestCmdIdx = i;
 	    }
 	}
     }
@@ -8278,6 +10091,10 @@ GetSrcInfoForPc(
 	*lengthPtr = bestSrcLength;
     }
 
+    if (cmdIdxPtr != NULL) {
+	*cmdIdxPtr = bestCmdIdx;
+    }
+
     return (codePtr->source + bestSrcOffset);
 }
 
diff --git a/generic/tclFCmd.c b/generic/tclFCmd.c
index 33c1496..8bf0a5a 100644
--- a/generic/tclFCmd.c
+++ b/generic/tclFCmd.c
@@ -517,7 +517,7 @@ CopyRenameOneFile(
 	 * 16 bits and we get collisions. See bug #2015723.
 	 */
 
-#if !defined(WIN32) && !defined(__CYGWIN__)
+#if !defined(_WIN32) && !defined(__CYGWIN__)
 	if ((sourceStatBuf.st_ino != 0) && (targetStatBuf.st_ino != 0)) {
 	    if ((sourceStatBuf.st_ino == targetStatBuf.st_ino) &&
 		    (sourceStatBuf.st_dev == targetStatBuf.st_dev)) {
@@ -734,17 +734,14 @@ CopyRenameOneFile(
 	     */
 
 	    errfile = target;
-
-	    /*
-	     * We now need to reset the result, because the above call, if it
-	     * failed, may have put an error message in place. (Ideally we
-	     * would prefer not to pass an interpreter in above, but the
-	     * channel IO code used by TclCrossFilesystemCopy currently
-	     * requires one).
-	     */
-
-	    Tcl_ResetResult(interp);
 	}
+	/* 
+	 * We now need to reset the result, because the above call,
+	 * may have left set it.  (Ideally we would prefer not to pass
+	 * an interpreter in above, but the channel IO code used by
+	 * TclCrossFilesystemCopy currently requires one)
+	 */
+	Tcl_ResetResult(interp);
     }
     if ((copyFlag == 0) && (result == TCL_OK)) {
 	if (S_ISDIR(sourceStatBuf.st_mode)) {
@@ -1199,7 +1196,7 @@ TclFileLinkCmd(
 	    static const char *const linkTypes[] = {
 		"-symbolic", "-hard", NULL
 	    };
-	    if (Tcl_GetIndexFromObj(interp, objv[1], linkTypes, "switch", 0,
+	    if (Tcl_GetIndexFromObj(interp, objv[1], linkTypes, "option", 0,
 		    &linkAction) != TCL_OK) {
 		return TCL_ERROR;
 	    }
diff --git a/generic/tclFileName.c b/generic/tclFileName.c
index 5d4702b..a7251bb 100644
--- a/generic/tclFileName.c
+++ b/generic/tclFileName.c
@@ -235,9 +235,9 @@ ExtractWinRoot(
 	if ((path[0] == 'c' || path[0] == 'C')
 		&& (path[1] == 'o' || path[1] == 'O')) {
 	    if ((path[2] == 'm' || path[2] == 'M')
-		    && path[3] >= '1' && path[3] <= '4') {
+		    && path[3] >= '1' && path[3] <= '9') {
 		/*
-		 * May have match for 'com[1-4]:?', which is a serial port.
+		 * May have match for 'com[1-9]:?', which is a serial port.
 		 */
 
 		if (path[4] == '\0') {
@@ -257,9 +257,9 @@ ExtractWinRoot(
 	} else if ((path[0] == 'l' || path[0] == 'L')
 		&& (path[1] == 'p' || path[1] == 'P')
 		&& (path[2] == 't' || path[2] == 'T')) {
-	    if (path[3] >= '1' && path[3] <= '3') {
+	    if (path[3] >= '1' && path[3] <= '9') {
 		/*
-		 * May have match for 'lpt[1-3]:?'
+		 * May have match for 'lpt[1-9]:?'
 		 */
 
 		if (path[4] == '\0') {
diff --git a/generic/tclGet.c b/generic/tclGet.c
index 4c19b55..97e8c7b 100644
--- a/generic/tclGet.c
+++ b/generic/tclGet.c
@@ -137,7 +137,7 @@ Tcl_GetBoolean(
     obj.length = strlen(src);
     obj.typePtr = NULL;
 
-    code = Tcl_ConvertToType(interp, &obj, &tclBooleanType);
+    code = TclSetBooleanFromAny(interp, &obj);
     if (obj.refCount > 1) {
 	Tcl_Panic("invalid sharing of Tcl_Obj on C stack");
     }
diff --git a/generic/tclIO.c b/generic/tclIO.c
index 4e24533..b97f57a 100644
--- a/generic/tclIO.c
+++ b/generic/tclIO.c
@@ -6,6 +6,7 @@
  *
  * Copyright (c) 1998-2000 Ajuba Solutions
  * Copyright (c) 1995-1997 Sun Microsystems, Inc.
+ * Contributions from Don Porter, NIST, 2014. (not subject to US copyright)
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -16,6 +17,97 @@
 #include <assert.h>
 
 /*
+ * For each channel handler registered in a call to Tcl_CreateChannelHandler,
+ * there is one record of the following type. All of records for a specific
+ * channel are chained together in a singly linked list which is stored in
+ * the channel structure.
+ */
+
+typedef struct ChannelHandler {
+    Channel *chanPtr;		/* The channel structure for this channel. */
+    int mask;			/* Mask of desired events. */
+    Tcl_ChannelProc *proc;	/* Procedure to call in the type of
+				 * Tcl_CreateChannelHandler. */
+    ClientData clientData;	/* Argument to pass to procedure. */
+    struct ChannelHandler *nextPtr;
+				/* Next one in list of registered handlers. */
+} ChannelHandler;
+
+/*
+ * This structure keeps track of the current ChannelHandler being invoked in
+ * the current invocation of Tcl_NotifyChannel. There is a potential
+ * problem if a ChannelHandler is deleted while it is the current one, since
+ * Tcl_NotifyChannel needs to look at the nextPtr field. To handle this
+ * problem, structures of the type below indicate the next handler to be
+ * processed for any (recursively nested) dispatches in progress. The
+ * nextHandlerPtr field is updated if the handler being pointed to is deleted.
+ * The nestedHandlerPtr field is used to chain together all recursive
+ * invocations, so that Tcl_DeleteChannelHandler can find all the recursively
+ * nested invocations of Tcl_NotifyChannel and compare the handler being
+ * deleted against the NEXT handler to be invoked in that invocation; when it
+ * finds such a situation, Tcl_DeleteChannelHandler updates the nextHandlerPtr
+ * field of the structure to the next handler.
+ */
+
+typedef struct NextChannelHandler {
+    ChannelHandler *nextHandlerPtr;	/* The next handler to be invoked in
+					 * this invocation. */
+    struct NextChannelHandler *nestedHandlerPtr;
+					/* Next nested invocation of
+					 * Tcl_NotifyChannel. */
+} NextChannelHandler;
+
+/*
+ * The following structure is used by Tcl_GetsObj() to encapsulates the
+ * state for a "gets" operation.
+ */
+
+typedef struct GetsState {
+    Tcl_Obj *objPtr;		/* The object to which UTF-8 characters
+				 * will be appended. */
+    char **dstPtr;		/* Pointer into objPtr's string rep where
+				 * next character should be stored. */
+    Tcl_Encoding encoding;	/* The encoding to use to convert raw bytes
+				 * to UTF-8.  */
+    ChannelBuffer *bufPtr;	/* The current buffer of raw bytes being
+				 * emptied. */
+    Tcl_EncodingState state;	/* The encoding state just before the last
+				 * external to UTF-8 conversion in
+				 * FilterInputBytes(). */
+    int rawRead;		/* The number of bytes removed from bufPtr
+				 * in the last call to FilterInputBytes(). */
+    int bytesWrote;		/* The number of bytes of UTF-8 data
+				 * appended to objPtr during the last call to
+				 * FilterInputBytes(). */
+    int charsWrote;		/* The corresponding number of UTF-8
+				 * characters appended to objPtr during the
+				 * last call to FilterInputBytes(). */
+    int totalChars;		/* The total number of UTF-8 characters
+				 * appended to objPtr so far, just before the
+				 * last call to FilterInputBytes(). */
+} GetsState;
+
+/*
+ * The following structure encapsulates the state for a background channel
+ * copy.  Note that the data buffer for the copy will be appended to this
+ * structure.
+ */
+
+typedef struct CopyState {
+    struct Channel *readPtr;	/* Pointer to input channel. */
+    struct Channel *writePtr;	/* Pointer to output channel. */
+    int readFlags;		/* Original read channel flags. */
+    int writeFlags;		/* Original write channel flags. */
+    Tcl_WideInt toRead;		/* Number of bytes to copy, or -1. */
+    Tcl_WideInt total;		/* Total bytes transferred (written). */
+    Tcl_Interp *interp;		/* Interp that started the copy. */
+    Tcl_Obj *cmdPtr;		/* Command to be invoked at completion. */
+    int bufSize;		/* Size of appended buffer. */
+    char buffer[1];		/* Copy buffer, this must be the last
+                                 * field. */
+} CopyState;
+
+/*
  * All static variables used in this file are collected into a single instance
  * of the following structure. For multi-threaded implementations, there is
  * one instance of this structure for each thread.
@@ -27,7 +119,7 @@
 typedef struct ThreadSpecificData {
     NextChannelHandler *nestedHandlerPtr;
 				/* This variable holds the list of nested
-				 * ChannelHandlerEventProc invocations. */
+				 * Tcl_NotifyChannel invocations. */
     ChannelState *firstCSPtr;	/* List of all channels currently open,
 				 * indexed by ChannelState, as only one
 				 * ChannelState exists per set of stacked
@@ -44,15 +136,30 @@ typedef struct ThreadSpecificData {
 static Tcl_ThreadDataKey dataKey;
 
 /*
+ * Structure to record a close callback. One such record exists for
+ * each close callback registered for a channel.
+ */
+
+typedef struct CloseCallback {
+    Tcl_CloseProc *proc;		/* The procedure to call. */
+    ClientData clientData;		/* Arbitrary one-word data to pass
+					 * to the callback. */
+    struct CloseCallback *nextPtr;	/* For chaining close callbacks. */
+} CloseCallback;
+
+/*
  * Static functions in this file:
  */
 
 static ChannelBuffer *	AllocChannelBuffer(int length);
+static void		PreserveChannelBuffer(ChannelBuffer *bufPtr);
+static void		ReleaseChannelBuffer(ChannelBuffer *bufPtr);
+static int		IsShared(ChannelBuffer *bufPtr);
+static void		ChannelFree(Channel *chanPtr);
 static void		ChannelTimerProc(ClientData clientData);
+static int		ChanRead(Channel *chanPtr, char *dst, int dstSize);
 static int		CheckChannelErrors(ChannelState *statePtr,
 			    int direction);
-static int		CheckFlush(Channel *chanPtr, ChannelBuffer *bufPtr,
-			    int newlineFlag);
 static int		CheckForDeadChannel(Tcl_Interp *interp,
 			    ChannelState *statePtr);
 static void		CheckForStdChannelsBeingClosed(Tcl_Channel chan);
@@ -64,10 +171,15 @@ static int		CloseChannelPart(Tcl_Interp *interp, Channel *chanPtr,
 			    int errorCode, int flags);
 static int		CloseWrite(Tcl_Interp *interp, Channel *chanPtr);
 static void		CommonGetsCleanup(Channel *chanPtr);
-static int		CopyAndTranslateBuffer(ChannelState *statePtr,
-			    char *result, int space);
-static int		CopyBuffer(Channel *chanPtr, char *result, int space);
 static int		CopyData(CopyState *csPtr, int mask);
+static int		MoveBytes(CopyState *csPtr);
+
+static void		MBCallback(CopyState *csPtr, Tcl_Obj *errObj);
+static void		MBError(CopyState *csPtr, int mask, int errorCode);
+static int		MBRead(CopyState *csPtr);
+static int		MBWrite(CopyState *csPtr);
+static void		MBEvent(ClientData clientData, int mask);
+
 static void		CopyEventProc(ClientData clientData, int mask);
 static void		CreateScriptRecord(Tcl_Interp *interp,
 			    Channel *chanPtr, int mask, Tcl_Obj *scriptPtr);
@@ -79,16 +191,16 @@ static int		DetachChannel(Tcl_Interp *interp, Tcl_Channel chan);
 static void		DiscardInputQueued(ChannelState *statePtr,
 			    int discardSavedBuffers);
 static void		DiscardOutputQueued(ChannelState *chanPtr);
-static int		DoRead(Channel *chanPtr, char *srcPtr, int slen, int allowShortReads);
-static int		DoWrite(Channel *chanPtr, const char *src, int srcLen);
+static int		DoRead(Channel *chanPtr, char *dst, int bytesToRead,
+			    int allowShortReads);
 static int		DoReadChars(Channel *chan, Tcl_Obj *objPtr, int toRead,
 			    int appendFlag);
-static int		DoWriteChars(Channel *chan, const char *src, int len);
 static int		FilterInputBytes(Channel *chanPtr,
 			    GetsState *statePtr);
 static int		FlushChannel(Tcl_Interp *interp, Channel *chanPtr,
 			    int calledFromAsyncFlush);
 static int		TclGetsObjBinary(Tcl_Channel chan, Tcl_Obj *objPtr);
+static Tcl_Encoding	GetBinaryEncoding();
 static void		FreeBinaryEncoding(ClientData clientData);
 static Tcl_HashTable *	GetChannelTable(Tcl_Interp *interp);
 static int		GetInput(Channel *chanPtr);
@@ -97,29 +209,30 @@ static int		HaveVersion(const Tcl_ChannelType *typePtr,
 static void		PeekAhead(Channel *chanPtr, char **dstEndPtr,
 			    GetsState *gsPtr);
 static int		ReadBytes(ChannelState *statePtr, Tcl_Obj *objPtr,
-			    int charsLeft, int *offsetPtr);
+			    int charsLeft);
 static int		ReadChars(ChannelState *statePtr, Tcl_Obj *objPtr,
-			    int charsLeft, int *offsetPtr, int *factorPtr);
+			    int charsLeft, int *factorPtr);
 static void		RecycleBuffer(ChannelState *statePtr,
 			    ChannelBuffer *bufPtr, int mustDiscard);
 static int		StackSetBlockMode(Channel *chanPtr, int mode);
 static int		SetBlockMode(Tcl_Interp *interp, Channel *chanPtr,
 			    int mode);
 static void		StopCopy(CopyState *csPtr);
-static int		TranslateInputEOL(ChannelState *statePtr, char *dst,
-			    const char *src, int *dstLenPtr, int *srcLenPtr);
-static int		TranslateOutputEOL(ChannelState *statePtr, char *dst,
+static void		TranslateInputEOL(ChannelState *statePtr, char *dst,
 			    const char *src, int *dstLenPtr, int *srcLenPtr);
 static void		UpdateInterest(Channel *chanPtr);
-static int		WriteBytes(Channel *chanPtr, const char *src,
-			    int srcLen);
-static int		WriteChars(Channel *chanPtr, const char *src,
-			    int srcLen);
+static int		Write(Channel *chanPtr, const char *src,
+			    int srcLen, Tcl_Encoding encoding);
 static Tcl_Obj *	FixLevelCode(Tcl_Obj *msg);
 static void		SpliceChannel(Tcl_Channel chan);
 static void		CutChannel(Tcl_Channel chan);
 static int              WillRead(Channel *chanPtr);
 
+#define WriteChars(chanPtr, src, srcLen) \
+			Write(chanPtr, src, srcLen, chanPtr->state->encoding)
+#define WriteBytes(chanPtr, src, srcLen) \
+			Write(chanPtr, src, srcLen, tclIdentityEncoding)
+
 /*
  * Simplifying helper macros. All may use their argument(s) multiple times.
  * The ANSI C "prototypes" for the macros are listed below, together with a
@@ -172,7 +285,7 @@ static int              WillRead(Channel *chanPtr);
 
 #define IsBufferEmpty(bufPtr)	((bufPtr)->nextAdded == (bufPtr)->nextRemoved)
 
-#define IsBufferFull(bufPtr)	((bufPtr)->nextAdded >= (bufPtr)->bufLength)
+#define IsBufferFull(bufPtr)	((bufPtr) && (bufPtr)->nextAdded >= (bufPtr)->bufLength)
 
 #define IsBufferOverflowing(bufPtr) ((bufPtr)->nextAdded>(bufPtr)->bufLength)
 
@@ -209,23 +322,22 @@ static int              WillRead(Channel *chanPtr);
 static void		DupChannelIntRep(Tcl_Obj *objPtr, Tcl_Obj *copyPtr);
 static int		SetChannelFromAny(Tcl_Interp *interp,
 			    Tcl_Obj *objPtr);
-static void		UpdateStringOfChannel(Tcl_Obj *objPtr);
 static void		FreeChannelIntRep(Tcl_Obj *objPtr);
 
-static const Tcl_ObjType tclChannelType = {
+static const Tcl_ObjType chanObjType = {
     "channel",			/* name for this type */
     FreeChannelIntRep,		/* freeIntRepProc */
     DupChannelIntRep,		/* dupIntRepProc */
-    NULL,			/* updateStringProc UpdateStringOfChannel */
+    NULL,			/* updateStringProc */
     NULL			/* setFromAnyProc SetChannelFromAny */
 };
 
 #define GET_CHANNELSTATE(objPtr) \
-    ((ChannelState *) (objPtr)->internalRep.otherValuePtr)
+    ((ChannelState *) (objPtr)->internalRep.twoPtrValue.ptr1)
 #define SET_CHANNELSTATE(objPtr, storePtr) \
-    ((objPtr)->internalRep.otherValuePtr = (void *) (storePtr))
+    ((objPtr)->internalRep.twoPtrValue.ptr1 = (void *) (storePtr))
 #define GET_CHANNELINTERP(objPtr) \
-    ((Interp *) (objPtr)->internalRep.twoPtrValue.ptr2)
+    ((Tcl_Interp *) (objPtr)->internalRep.twoPtrValue.ptr2)
 #define SET_CHANNELINTERP(objPtr, storePtr) \
     ((objPtr)->internalRep.twoPtrValue.ptr2 = (void *) (storePtr))
 
@@ -268,19 +380,87 @@ ChanCloseHalf(
     return chanPtr->typePtr->close2Proc(chanPtr->instanceData, interp, flags);
 }
 
-static inline int
+/*
+ *---------------------------------------------------------------------------
+ *
+ * ChanRead --
+ *
+ *	Read up to dstSize bytes using the inputProc of chanPtr, store
+ *	them at dst, and return the number of bytes stored.
+ *
+ * Results:
+ *	The return value of the driver inputProc,
+ *	  - number of bytes stored at dst, ot
+ *	  - -1 on error, with a Posix error code available to the
+ *	    caller by calling Tcl_GetErrno().
+ *
+ * Side effects:
+ *	The CHANNEL_BLOCKED and CHANNEL_EOF flags of the channel state are
+ *	set as appropriate.
+ *	On EOF, the inputEncodingFlags are set to perform ending operations
+ *	on decoding.
+ *	TODO - Is this really the right place for that?
+ *
+ *---------------------------------------------------------------------------
+ */
+static int
 ChanRead(
     Channel *chanPtr,
     char *dst,
-    int dstSize,
-    int *errnoPtr)
+    int dstSize)
 {
+    int bytesRead, result;
+
+    /*
+     * If the caller asked for zero bytes, we'd force the inputProc
+     * to return zero bytes, and then misinterpret that as EOF.
+     */
+    assert(dstSize > 0);
+
+    /*
+     * Each read op must set the blocked and eof states anew, not let
+     * the effect of prior reads leak through.
+     */
+    if (GotFlag(chanPtr->state, CHANNEL_EOF)) {
+        chanPtr->state->inputEncodingFlags |= TCL_ENCODING_START;
+    }
+    ResetFlag(chanPtr->state, CHANNEL_BLOCKED | CHANNEL_EOF);
+    chanPtr->state->inputEncodingFlags &= ~TCL_ENCODING_END;
     if (WillRead(chanPtr) < 0) {
         return -1;
     }
 
-    return chanPtr->typePtr->inputProc(chanPtr->instanceData, dst, dstSize,
-	    errnoPtr);
+    bytesRead = chanPtr->typePtr->inputProc(chanPtr->instanceData,
+	    dst, dstSize, &result);
+
+    /* Stop any flag leakage through stacked channel levels */
+    if (GotFlag(chanPtr->state, CHANNEL_EOF)) {
+        chanPtr->state->inputEncodingFlags |= TCL_ENCODING_START;
+    }
+    ResetFlag(chanPtr->state, CHANNEL_BLOCKED | CHANNEL_EOF);
+    chanPtr->state->inputEncodingFlags &= ~TCL_ENCODING_END;
+    if (bytesRead > 0) {
+	/*
+	 * If we get a short read, signal up that we may be BLOCKED.
+	 * We should avoid calling the driver because on some
+	 * platforms we will block in the low level reading code even
+	 * though the channel is set into nonblocking mode.
+	 */
+
+	if (bytesRead < dstSize) {
+	    SetFlag(chanPtr->state, CHANNEL_BLOCKED);
+	}
+    } else if (bytesRead == 0) {
+	SetFlag(chanPtr->state, CHANNEL_EOF);
+	chanPtr->state->inputEncodingFlags |= TCL_ENCODING_END;
+    } else if (bytesRead < 0) {
+	if ((result == EWOULDBLOCK) || (result == EAGAIN)) {
+	    SetFlag(chanPtr->state, CHANNEL_BLOCKED);
+	    result = EAGAIN;
+	}
+	Tcl_SetErrno(result);
+    }
+    return bytesRead;
 }
 
 static inline Tcl_WideInt
@@ -444,6 +624,7 @@ TclFinalizeIOSubsystem(void)
 
 	if (active) {
 
+	    TclChannelPreserve((Tcl_Channel)chanPtr);
 	    /*
 	     * TIP #398:  by default, we no  longer set the  channel back into
              * blocking  mode.  To  restore  the old  blocking  behavior,  the
@@ -502,6 +683,7 @@ TclFinalizeIOSubsystem(void)
 		chanPtr->instanceData = NULL;
 		SetFlag(statePtr, CHANNEL_DEAD);
 	    }
+	    TclChannelRelease((Tcl_Channel)chanPtr);
 	}
     }
 
@@ -695,6 +877,8 @@ Tcl_DeleteCloseHandler(
 	if ((cbPtr->proc == proc) && (cbPtr->clientData == clientData)) {
 	    if (cbPrevPtr == NULL) {
 		statePtr->closeCbPtr = cbPtr->nextPtr;
+	    } else {
+		cbPrevPtr->nextPtr = cbPtr->nextPtr;
 	    }
 	    ckfree(cbPtr);
 	    break;
@@ -879,19 +1063,25 @@ CheckForStdChannelsBeingClosed(
     ChannelState *statePtr = ((Channel *) chan)->state;
     ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
 
-    if ((chan == tsdPtr->stdinChannel) && tsdPtr->stdinInitialized) {
+    if (tsdPtr->stdinInitialized
+	    && tsdPtr->stdinChannel != NULL
+	    && statePtr == ((Channel *)tsdPtr->stdinChannel)->state) {
 	if (statePtr->refCount < 2) {
 	    statePtr->refCount = 0;
 	    tsdPtr->stdinChannel = NULL;
 	    return;
 	}
-    } else if ((chan == tsdPtr->stdoutChannel) && tsdPtr->stdoutInitialized) {
+    } else if (tsdPtr->stdoutInitialized
+	    && tsdPtr->stdoutChannel != NULL
+	    && statePtr == ((Channel *)tsdPtr->stdoutChannel)->state) {
 	if (statePtr->refCount < 2) {
 	    statePtr->refCount = 0;
 	    tsdPtr->stdoutChannel = NULL;
 	    return;
 	}
-    } else if ((chan == tsdPtr->stderrChannel) && tsdPtr->stderrInitialized) {
+    } else if (tsdPtr->stderrInitialized
+	    && tsdPtr->stderrChannel != NULL
+	    && statePtr == ((Channel *)tsdPtr->stderrChannel)->state) {
 	if (statePtr->refCount < 2) {
 	    statePtr->refCount = 0;
 	    tsdPtr->stderrChannel = NULL;
@@ -1055,15 +1245,6 @@ Tcl_UnregisterChannel(
      */
 
     if (statePtr->refCount <= 0) {
-	/*
-	 * Ensure that if there is another buffer, it gets flushed whether or
-	 * not we are doing a background flush.
-	 */
-
-	if ((statePtr->curOutPtr != NULL) &&
-		IsBufferReady(statePtr->curOutPtr)) {
-	    SetFlag(statePtr, BUFFER_READY);
-	}
 	Tcl_Preserve(statePtr);
 	if (!GotFlag(statePtr, BG_FLUSH_SCHEDULED)) {
 	    /*
@@ -1375,6 +1556,22 @@ Tcl_CreateChannel(
      */
 
     assert(sizeof(Tcl_ChannelTypeVersion) == sizeof(Tcl_DriverBlockModeProc *));
+    assert(typePtr->typeName != NULL);
+    if (NULL == typePtr->closeProc) {
+	Tcl_Panic("channel type %s must define closeProc", typePtr->typeName);
+    }
+    if ((TCL_READABLE & mask) && (NULL == typePtr->inputProc)) {
+	Tcl_Panic("channel type %s must define inputProc when used for reader channel", typePtr->typeName);
+    }
+    if ((TCL_WRITABLE & mask) &&  (NULL == typePtr->outputProc)) {
+	Tcl_Panic("channel type %s must define outputProc when used for writer channel", typePtr->typeName);
+    }
+    if (NULL == typePtr->watchProc) {
+	Tcl_Panic("channel type %s must define watchProc", typePtr->typeName);
+    }
+    if ((NULL!=typePtr->wideSeekProc) && (NULL == typePtr->seekProc)) {
+	Tcl_Panic("channel type %s must define seekProc if defining wideSeekProc", typePtr->typeName);
+    }
 
     /*
      * JH: We could subsequently memset these to 0 to avoid the numerous
@@ -1459,11 +1656,7 @@ Tcl_CreateChannel(
     statePtr->timer		= NULL;
     statePtr->csPtrR		= NULL;
     statePtr->csPtrW		= NULL;
-
     statePtr->outputStage	= NULL;
-    if ((statePtr->encoding != NULL) && GotFlag(statePtr, TCL_WRITABLE)) {
-	statePtr->outputStage = ckalloc(statePtr->bufSize + 2);
-    }
 
     /*
      * As we are creating the channel, it is obviously the top for now.
@@ -1475,6 +1668,7 @@ Tcl_CreateChannel(
     chanPtr->upChanPtr		= NULL;
     chanPtr->inQueueHead	= NULL;
     chanPtr->inQueueTail	= NULL;
+    chanPtr->refCount		= 0;
 
     /*
      * TIP #219, Tcl Channel Reflection API
@@ -1628,6 +1822,10 @@ Tcl_StackChannel(
 	statePtr->csPtrR = NULL;
 	statePtr->csPtrW = NULL;
 
+	/*
+	 * TODO: Examine what can go wrong if Tcl_Flush() call disturbs
+	 * the stacking state of this channel during its operations.
+	 */
 	if (Tcl_Flush((Tcl_Channel) prevChanPtr) != TCL_OK) {
 	    statePtr->csPtrR = csPtrR;
 	    statePtr->csPtrW = csPtrW;
@@ -1659,17 +1857,17 @@ Tcl_StackChannel(
      */
 
     if (((mask & TCL_READABLE) != 0) && (statePtr->inQueueHead != NULL)) {
+
 	/*
-	 * Remark: It is possible that the channel buffers contain data from
-	 * some earlier push-backs.
+	 * When statePtr->inQueueHead is not NULL, we know
+	 * prevChanPtr->inQueueHead must be NULL.
 	 */
 
-	statePtr->inQueueTail->nextPtr = prevChanPtr->inQueueHead;
-	prevChanPtr->inQueueHead = statePtr->inQueueHead;
+	assert(prevChanPtr->inQueueHead == NULL);
+	assert(prevChanPtr->inQueueTail == NULL);
 
-	if (prevChanPtr->inQueueTail == NULL) {
-	    prevChanPtr->inQueueTail = statePtr->inQueueTail;
-	}
+	prevChanPtr->inQueueHead = statePtr->inQueueHead;
+	prevChanPtr->inQueueTail = statePtr->inQueueTail;
 
 	statePtr->inQueueHead = NULL;
 	statePtr->inQueueTail = NULL;
@@ -1691,6 +1889,7 @@ Tcl_StackChannel(
     chanPtr->upChanPtr		= NULL;
     chanPtr->inQueueHead	= NULL;
     chanPtr->inQueueTail	= NULL;
+    chanPtr->refCount		= 0;
 
     /*
      * Place new block at the head of a possibly existing list of previously
@@ -1715,6 +1914,41 @@ Tcl_StackChannel(
 
     return (Tcl_Channel) chanPtr;
 }
+
+void
+TclChannelPreserve(
+    Tcl_Channel chan)
+{
+    ((Channel *)chan)->refCount++;
+}
+
+void
+TclChannelRelease(
+    Tcl_Channel chan)
+{
+    Channel *chanPtr = (Channel *) chan;
+
+    if (chanPtr->refCount == 0) {
+	Tcl_Panic("Channel released more than preserved");
+    }
+    if (--chanPtr->refCount) {
+	return;
+    }
+    if (chanPtr->typePtr == NULL) {
+	ckfree(chanPtr);
+    }
+}
+
+static void
+ChannelFree(
+    Channel *chanPtr)
+{
+    if (chanPtr->refCount == 0) {
+	ckfree(chanPtr);
+	return;
+    }
+    chanPtr->typePtr = NULL;
+}
 
 /*
  *----------------------------------------------------------------------
@@ -1757,6 +1991,13 @@ Tcl_UnstackChannel(
 	 * into the old structure.
 	 */
 
+	/*
+	 * TODO: Figure out how to handle the situation where the chan
+	 * operations called below by this unstacking operation cause
+	 * another unstacking recursively.  In that case the downChanPtr
+	 * value we're holding on to will not be the right thing.
+	 */
+
 	Channel *downChanPtr = chanPtr->downChanPtr;
 
 	/*
@@ -1854,14 +2095,9 @@ Tcl_UnstackChannel(
 	 */
 
 	result = ChanClose(chanPtr, interp);
-	chanPtr->typePtr = NULL;
-
-	/*
-	 * AK: Tcl_NotifyChannel may hold a reference to this block of memory
-	 */
+	ChannelFree(chanPtr);
 
-	Tcl_EventuallyFree(chanPtr, TCL_DYNAMIC);
-	UpdateInterest(downChanPtr);
+	UpdateInterest(statePtr->topChanPtr);
 
 	if (result != 0) {
 	    Tcl_SetErrno(result);
@@ -2173,8 +2409,36 @@ AllocChannelBuffer(
     bufPtr->nextRemoved	= BUFFER_PADDING;
     bufPtr->bufLength	= length + BUFFER_PADDING;
     bufPtr->nextPtr	= NULL;
+    bufPtr->refCount	= 1;
     return bufPtr;
 }
+
+static void
+PreserveChannelBuffer(
+    ChannelBuffer *bufPtr)
+{
+    if (bufPtr->refCount == 0) {
+	Tcl_Panic("Reuse of ChannelBuffer! %p", bufPtr);
+    }
+    bufPtr->refCount++;
+}
+
+static void
+ReleaseChannelBuffer(
+    ChannelBuffer *bufPtr)
+{
+    if (--bufPtr->refCount) {
+	return;
+    }
+    ckfree(bufPtr);
+}
+
+static int
+IsShared(
+    ChannelBuffer *bufPtr)
+{
+    return bufPtr->refCount > 1;
+}
 
 /*
  *----------------------------------------------------------------------
@@ -2205,20 +2469,23 @@ RecycleBuffer(
     /*
      * Do we have to free the buffer to the OS?
      */
+    if (IsShared(bufPtr)) {
+	mustDiscard = 1;
+    }
 
     if (mustDiscard) {
-	ckfree(bufPtr);
+	ReleaseChannelBuffer(bufPtr);
 	return;
     }
 
     /*
-     * Only save buffers which are at least as big as the requested buffersize
-     * for the channel. This is to honor dynamic changes of the buffersize
+     * Only save buffers which have the requested buffersize for the
+     * channel. This is to honor dynamic changes of the buffersize
      * made by the user.
      */
 
-    if ((bufPtr->bufLength - BUFFER_PADDING) < statePtr->bufSize) {
-	ckfree(bufPtr);
+    if ((bufPtr->bufLength - BUFFER_PADDING) != statePtr->bufSize) {
+	ReleaseChannelBuffer(bufPtr);
 	return;
     }
 
@@ -2253,7 +2520,7 @@ RecycleBuffer(
      * If we reached this code we return the buffer to the OS.
      */
 
-    ckfree(bufPtr);
+    ReleaseChannelBuffer(bufPtr);
     return;
 
   keepBuffer:
@@ -2291,6 +2558,11 @@ DiscardOutputQueued(
     }
     statePtr->outQueueHead = NULL;
     statePtr->outQueueTail = NULL;
+    bufPtr = statePtr->curOutPtr;
+    if (bufPtr && BytesLeft(bufPtr)) {
+	statePtr->curOutPtr = NULL;
+	RecycleBuffer(statePtr, bufPtr, 0);
+    }
 }
 
 /*
@@ -2358,8 +2630,6 @@ FlushChannel(
     ChannelState *statePtr = chanPtr->state;
 				/* State of the channel stack. */
     ChannelBuffer *bufPtr;	/* Iterates over buffered output queue. */
-    int toWrite;		/* Amount of output data in current buffer
-				 * available to be written. */
     int written;		/* Amount of output data actually written in
 				 * current round. */
     int errorCode = 0;		/* Stores POSIX error codes from channel
@@ -2379,63 +2649,61 @@ FlushChannel(
     }
 
     /*
-     * Loop over the queued buffers and attempt to flush as much as possible
-     * of the queued output to the channel.
-     */
-
-    Tcl_Preserve(chanPtr);
-    while (1) {
-	/*
-	 * If the queue is empty and there is a ready current buffer, OR if
-	 * the current buffer is full, then move the current buffer to the
-	 * queue.
-	 */
-
-	if (((statePtr->curOutPtr != NULL) &&
-		IsBufferFull(statePtr->curOutPtr))
-		|| (GotFlag(statePtr, BUFFER_READY) &&
-			(statePtr->outQueueHead == NULL))) {
-	    ResetFlag(statePtr, BUFFER_READY);
-	    statePtr->curOutPtr->nextPtr = NULL;
-	    if (statePtr->outQueueHead == NULL) {
-		statePtr->outQueueHead = statePtr->curOutPtr;
-	    } else {
-		statePtr->outQueueTail->nextPtr = statePtr->curOutPtr;
-	    }
-	    statePtr->outQueueTail = statePtr->curOutPtr;
-	    statePtr->curOutPtr = NULL;
+     * Should we shift the current output buffer over to the output queue?
+     * First check that there are bytes in it.  If so then...
+     * If the output queue is empty, then yes, trusting the caller called
+     * us only when written bytes ought to be flushed.
+     * If the current output buffer is full, then yes, so we can meet
+     * the post-condition that on a successful return to caller we've
+     * left space in the current output buffer for more writing (the flush
+     * call was to make new room).
+     * If the channel is blocking, then yes, so we guarantee that 
+     * blocking flushes actually flush all pending data.
+     * Otherwise, no.  Keep the current output buffer where it is so more
+     * can be written to it, possibly filling it, to promote more efficient
+     * buffer usage.
+     */
+
+    bufPtr = statePtr->curOutPtr;
+    if (bufPtr && BytesLeft(bufPtr) && /* Keep empties off queue */
+	    (statePtr->outQueueHead == NULL || IsBufferFull(bufPtr)
+		    || !GotFlag(statePtr, CHANNEL_NONBLOCKING))) {
+	if (statePtr->outQueueHead == NULL) {
+	    statePtr->outQueueHead = bufPtr;
+	} else {
+	    statePtr->outQueueTail->nextPtr = bufPtr;
 	}
-	bufPtr = statePtr->outQueueHead;
+	statePtr->outQueueTail = bufPtr;
+	statePtr->curOutPtr = NULL;
+    }
 
-	/*
-	 * If we are not being called from an async flush and an async flush
-	 * is active, we just return without producing any output.
-	 */
+    assert(!IsBufferFull(statePtr->curOutPtr));
 
-	if (!calledFromAsyncFlush && GotFlag(statePtr, BG_FLUSH_SCHEDULED)) {
-	    errorCode = 0;
-	    goto done;
-	}
+    /*
+     * If we are not being called from an async flush and an async flush
+     * is active, we just return without producing any output.
+     */
 
-	/*
-	 * If the output queue is still empty, break out of the while loop.
-	 */
+    if (!calledFromAsyncFlush && GotFlag(statePtr, BG_FLUSH_SCHEDULED)) {
+	return 0;
+    }
 
-	if (bufPtr == NULL) {
-	    break;		/* Out of the "while (1)". */
-	}
+    /*
+     * Loop over the queued buffers and attempt to flush as much as possible
+     * of the queued output to the channel.
+     */
+
+    TclChannelPreserve((Tcl_Channel)chanPtr);
+    while (statePtr->outQueueHead) {
+	bufPtr = statePtr->outQueueHead;
 
 	/*
 	 * Produce the output on the channel.
 	 */
 
-	toWrite = BytesLeft(bufPtr);
-	if (toWrite == 0) {
-            written = 0;
-	} else {
-	    written = ChanWrite(chanPtr, RemovePoint(bufPtr), toWrite,
-		    &errorCode);
-	}
+	PreserveChannelBuffer(bufPtr);
+	written = ChanWrite(chanPtr, RemovePoint(bufPtr), BytesLeft(bufPtr),
+		&errorCode);
 
 	/*
 	 * If the write failed completely attempt to start the asynchronous
@@ -2450,6 +2718,7 @@ FlushChannel(
 
 	    if (errorCode == EINTR) {
 		errorCode = 0;
+		ReleaseChannelBuffer(bufPtr);
 		continue;
 	    }
 
@@ -2466,11 +2735,12 @@ FlushChannel(
 		 * it's a tty channel (dup'ed underneath)
 		 */
 
-		if (!GotFlag(statePtr, BG_FLUSH_SCHEDULED)) {
+		if (!GotFlag(statePtr, BG_FLUSH_SCHEDULED) && !TclInExit()) {
 		    SetFlag(statePtr, BG_FLUSH_SCHEDULED);
 		    UpdateInterest(chanPtr);
 		}
 		errorCode = 0;
+		ReleaseChannelBuffer(bufPtr);
 		break;
 	    }
 
@@ -2532,14 +2802,15 @@ FlushChannel(
 	     */
 
 	    DiscardOutputQueued(statePtr);
-	    continue;
+	    ReleaseChannelBuffer(bufPtr);
+	    break;
 	} else {
+	    /* TODO: Consider detecting and reacting to short writes
+	     * on blocking channels.  Ought not happen.  See iocmd-24.2. */
 	    wroteSome = 1;
 	}
 
-	if (!IsBufferEmpty(bufPtr)) {
-	    bufPtr->nextRemoved += written;
-	}
+	bufPtr->nextRemoved += written;
 
 	/*
 	 * If this buffer is now empty, recycle it.
@@ -2552,7 +2823,8 @@ FlushChannel(
 	    }
 	    RecycleBuffer(statePtr, bufPtr, 0);
 	}
-    }	/* Closes "while (1)". */
+	ReleaseChannelBuffer(bufPtr);
+    }	/* Closes "while". */
 
     /*
      * If we wrote some data while flushing in the background, we are done.
@@ -2567,6 +2839,25 @@ FlushChannel(
 	} else if (statePtr->outQueueHead == NULL) {
 	    ResetFlag(statePtr, BG_FLUSH_SCHEDULED);
 	    ChanWatch(chanPtr, statePtr->interestMask);
+	} else {
+
+	    /*
+	     * When we are calledFromAsyncFlush, that means a writable
+	     * state on the channel triggered the call, so we should be
+	     * able to write something.  Either we did write something 
+	     * and wroteSome should be set, or there was nothing left to
+	     * write in this call, and we've completed the BG flush.
+	     * These are the two cases above.  If we get here, that means
+	     * there is some kind failure in the writable event machinery.
+	     *
+	     * The tls extension indeed suffers from flaws in its channel
+	     * event mgmt.  See http://core.tcl.tk/tcl/info/c31ca233ca.
+	     * Until that patch is broadly distributed, disable the
+	     * assertion checking here, so that programs using Tcl and
+	     * tls can be debugged.
+
+	    assert(!calledFromAsyncFlush);
+	     */
 	}
     }
 
@@ -2599,7 +2890,7 @@ FlushChannel(
     }
 
   done:
-    Tcl_Release(chanPtr);
+    TclChannelRelease((Tcl_Channel)chanPtr);
     return errorCode;
 }
 
@@ -2653,7 +2944,7 @@ CloseChannel(
      */
 
     if (statePtr->curOutPtr != NULL) {
-	ckfree(statePtr->curOutPtr);
+	ReleaseChannelBuffer(statePtr->curOutPtr);
 	statePtr->curOutPtr = NULL;
     }
 
@@ -2716,10 +3007,6 @@ CloseChannel(
 	}
 
 	Tcl_FreeEncoding(statePtr->encoding);
-	if (statePtr->outputStage != NULL) {
-	    ckfree(statePtr->outputStage);
-	    statePtr->outputStage = NULL;
-	}
     }
 
     /*
@@ -2769,9 +3056,9 @@ CloseChannel(
 
 	statePtr->topChanPtr = downChanPtr;
 	downChanPtr->upChanPtr = NULL;
-	chanPtr->typePtr = NULL;
 
-	Tcl_EventuallyFree(chanPtr, TCL_DYNAMIC);
+	ChannelFree(chanPtr);
+
 	return Tcl_Close(interp, (Tcl_Channel) downChanPtr);
     }
 
@@ -2779,13 +3066,11 @@ CloseChannel(
      * There is only the TOP Channel, so we free the remaining pointers we
      * have and then ourselves. Since this is the last of the channels in the
      * stack, make sure to free the ChannelState structure associated with it.
-     * We use Tcl_EventuallyFree to allow for any last references.
      */
 
-    chanPtr->typePtr = NULL;
+    ChannelFree(chanPtr);
 
     Tcl_EventuallyFree(statePtr, TCL_DYNAMIC);
-    Tcl_EventuallyFree(chanPtr, TCL_DYNAMIC);
 
     return errorCode;
 }
@@ -3069,10 +3354,18 @@ Tcl_Close(
 
     stickyError = 0;
 
-    if ((statePtr->encoding != NULL) && (statePtr->curOutPtr != NULL)
-	    && (CheckChannelErrors(statePtr, TCL_WRITABLE) == 0)) {
-	statePtr->outputEncodingFlags |= TCL_ENCODING_END;
-	if (WriteChars(chanPtr, "", 0) < 0) {
+    if (GotFlag(statePtr, TCL_WRITABLE) && (statePtr->encoding != NULL)
+	    && !(statePtr->outputEncodingFlags & TCL_ENCODING_START)) {
+
+	int code = CheckChannelErrors(statePtr, TCL_WRITABLE);
+
+	if (code == 0) {
+	    statePtr->outputEncodingFlags |= TCL_ENCODING_END;
+	    code = WriteChars(chanPtr, "", 0);
+	    statePtr->outputEncodingFlags &= ~TCL_ENCODING_END;
+	    statePtr->outputEncodingFlags |= TCL_ENCODING_START;
+	}
+	if (code < 0) {
 	    stickyError = Tcl_GetErrno();
 	}
 
@@ -3107,14 +3400,6 @@ Tcl_Close(
     ResetFlag(statePtr, CHANNEL_INCLOSE);
 
     /*
-     * Ensure that the last output buffer will be flushed.
-     */
-
-    if ((statePtr->curOutPtr != NULL) && IsBufferReady(statePtr->curOutPtr)) {
-	SetFlag(statePtr, BUFFER_READY);
-    }
-
-    /*
      * If this channel supports it, close the read side, since we don't need
      * it anymore and this will help avoid deadlocks on some channel types.
      */
@@ -3159,7 +3444,17 @@ Tcl_Close(
 	    Tcl_SetObjResult(interp,
 			     Tcl_NewStringObj(Tcl_PosixError(interp), -1));
 	}
-	flushcode = -1;
+	return TCL_ERROR;
+    }
+    /*
+     * Bug 97069ea11a: set error message if a flush code is set and no error
+     * message set up to now.
+     */
+    if (flushcode != 0 && interp != NULL
+	    && 0 == Tcl_GetCharLength(Tcl_GetObjResult(interp)) ) {
+	Tcl_SetErrno(flushcode);
+	Tcl_SetObjResult(interp,
+		Tcl_NewStringObj(Tcl_PosixError(interp), -1));
     }
     if ((flushcode != 0) || (result != 0)) {
 	return TCL_ERROR;
@@ -3272,10 +3567,6 @@ Tcl_CloseEx(
 
 	return CloseChannelPart(interp, chanPtr, 0, flags);
     } else if (flags & TCL_CLOSE_WRITE) {
-	if ((statePtr->curOutPtr != NULL) &&
-		IsBufferReady(statePtr->curOutPtr)) {
-	    SetFlag(statePtr, BUFFER_READY);
-	}
 	Tcl_Preserve(statePtr);
 	if (!GotFlag(statePtr, BG_FLUSH_SCHEDULED)) {
 	    /*
@@ -3337,14 +3628,6 @@ CloseWrite(
     int result = 0;
 
     /*
-     * Ensure that the last output buffer will be flushed.
-     */
-
-    if ((statePtr->curOutPtr != NULL) && IsBufferReady(statePtr->curOutPtr)) {
-	SetFlag(statePtr, BUFFER_READY);
-    }
-
-    /*
      * The call to FlushChannel will flush any queued output and invoke the
      * close function of the channel driver, or it will set up the channel to
      * be flushed and closed asynchronously.
@@ -3656,7 +3939,10 @@ Tcl_Write(
     if (srcLen < 0) {
 	srcLen = strlen(src);
     }
-    return DoWrite(chanPtr, src, srcLen);
+    if (WriteBytes(chanPtr, src, srcLen) < 0) {
+	return -1;
+    }
+    return srcLen;
 }
 
 /*
@@ -3747,82 +4033,40 @@ Tcl_WriteChars(
     int len)			/* Length of string in bytes, or < 0 for
 				 * strlen(). */
 {
-    ChannelState *statePtr;	/* State info for channel */
-
-    statePtr = ((Channel *) chan)->state;
+    Channel *chanPtr = (Channel *) chan;
+    ChannelState *statePtr = chanPtr->state;	/* State info for channel */
+    int result;
+    Tcl_Obj *objPtr;
 
     if (CheckChannelErrors(statePtr, TCL_WRITABLE) != 0) {
 	return -1;
     }
 
-    return DoWriteChars((Channel *) chan, src, len);
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * DoWriteChars --
- *
- *	Takes a sequence of UTF-8 characters and converts them for output
- *	using the channel's current encoding, may queue the buffer for output
- *	if it gets full, and also remembers whether the current buffer is
- *	ready e.g. if it contains a newline and we are in line buffering mode.
- *	Compensates stacking, i.e. will redirect the data from the specified
- *	channel to the topmost channel in a stack.
- *
- * Results:
- *	The number of bytes written or -1 in case of error. If -1,
- *	Tcl_GetErrno will return the error code.
- *
- * Side effects:
- *	May buffer up output and may cause output to be produced on the
- *	channel.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-DoWriteChars(
-    Channel *chanPtr,		/* The channel to buffer output for. */
-    const char *src,		/* UTF-8 characters to queue in output
-				 * buffer. */
-    int len)			/* Length of string in bytes, or < 0 for
-				 * strlen(). */
-{
-    /*
-     * Always use the topmost channel of the stack
-     */
-
-    ChannelState *statePtr;	/* State info for channel */
-
-    statePtr = chanPtr->state;
     chanPtr = statePtr->topChanPtr;
 
     if (len < 0) {
 	len = strlen(src);
     }
-    if (statePtr->encoding == NULL) {
-	/*
-	 * Inefficient way to convert UTF-8 to byte-array, but the code
-	 * parallels the way it is done for objects.
-	 * Special case for 1-byte (used by eg [puts] for the \n) could
-	 * be extended to more efficient translation of the src string.
-	 */
-
-	int result;
+    if (statePtr->encoding) {
+	return WriteChars(chanPtr, src, len);
+    }
 
-	if ((len == 1) && (UCHAR(*src) < 0xC0)) {
-	    result = WriteBytes(chanPtr, src, len);
-	} else {
-	    Tcl_Obj *objPtr = Tcl_NewStringObj(src, len);
+    /*
+     * Inefficient way to convert UTF-8 to byte-array, but the code
+     * parallels the way it is done for objects.  Special case for 1-byte
+     * (used by eg [puts] for the \n) could be extended to more efficient
+     * translation of the src string.
+     */
 
-	    src = (char *) Tcl_GetByteArrayFromObj(objPtr, &len);
-	    result = WriteBytes(chanPtr, src, len);
-	    TclDecrRefCount(objPtr);
-	}
-	return result;
+    if ((len == 1) && (UCHAR(*src) < 0xC0)) {
+	return WriteBytes(chanPtr, src, len);
     }
-    return WriteChars(chanPtr, src, len);
+
+    objPtr = Tcl_NewStringObj(src, len);
+    src = (char *) Tcl_GetByteArrayFromObj(objPtr, &len);
+    result = WriteBytes(chanPtr, src, len);
+    TclDecrRefCount(objPtr);
+    return result;
 }
 
 /*
@@ -3898,12 +4142,25 @@ static int
 WillRead(
     Channel *chanPtr)
 {
+    if (chanPtr->typePtr == NULL) {
+	/* Prevent read attempts on a closed channel */
+        DiscardInputQueued(chanPtr->state, 0);
+	Tcl_SetErrno(EINVAL);
+	return -1;
+    }
     if ((chanPtr->typePtr->seekProc != NULL)
             && (Tcl_OutputBuffered((Tcl_Channel) chanPtr) > 0)) {
-        if ((chanPtr->state->curOutPtr != NULL)
-                && IsBufferReady(chanPtr->state->curOutPtr)) {
-            SetFlag(chanPtr->state, BUFFER_READY);
-        }
+
+	/*
+	 * CAVEAT - The assumption here is that FlushChannel() will
+	 * push out the bytes of any writes that are in progress.
+	 * Since this is a seekable channel, we assume it is not one
+	 * that can block and force bg flushing.  Channels we know that
+	 * can do that -- sockets, pipes -- are not seekable.  If the
+	 * assumption is wrong, more drastic measures may be required here
+	 * like temporarily setting the channel into blocking mode.
+	 */
+
         if (FlushChannel(NULL, chanPtr, 0) != 0) {
             return -1;
         }
@@ -3914,110 +4171,9 @@ WillRead(
 /*
  *----------------------------------------------------------------------
  *
- * WriteBytes --
- *
- *	Write a sequence of bytes into an output buffer, may queue the buffer
- *	for output if it gets full, and also remembers whether the current
- *	buffer is ready e.g. if it contains a newline and we are in line
- *	buffering mode.
- *
- * Results:
- *	The number of bytes written or -1 in case of error. If -1,
- *	Tcl_GetErrno will return the error code.
- *
- * Side effects:
- *	May buffer up output and may cause output to be produced on the
- *	channel.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-WriteBytes(
-    Channel *chanPtr,		/* The channel to buffer output for. */
-    const char *src,		/* Bytes to write. */
-    int srcLen)			/* Number of bytes to write. */
-{
-    ChannelState *statePtr = chanPtr->state;
-				/* State info for channel */
-    ChannelBuffer *bufPtr;
-    char *dst;
-    int dstMax, sawLF, savedLF, total, dstLen, toWrite, translate;
-
-    if (srcLen) {
-        WillWrite(chanPtr);
-    }
-
-    total = 0;
-    sawLF = 0;
-    savedLF = 0;
-    translate = GotFlag(statePtr, CHANNEL_LINEBUFFERED)
-	    || (statePtr->outputTranslation != TCL_TRANSLATE_LF);
-
-    /*
-     * Loop over all bytes in src, storing them in output buffer with proper
-     * EOL translation.
-     */
-
-    while (srcLen + savedLF > 0) {
-	bufPtr = statePtr->curOutPtr;
-	if (bufPtr == NULL) {
-	    bufPtr = AllocChannelBuffer(statePtr->bufSize);
-	    statePtr->curOutPtr = bufPtr;
-	}
-	dst = InsertPoint(bufPtr);
-	dstMax = SpaceLeft(bufPtr);
-	dstLen = dstMax;
-
-	toWrite = dstLen;
-	if (toWrite > srcLen) {
-	    toWrite = srcLen;
-	}
-
-	if (translate) {
-	    if (savedLF) {
-		/*
-		 * A '\n' was left over from last call to TranslateOutputEOL()
-		 * and we need to store it in this buffer. If the channel is
-		 * line-based, we will need to flush it.
-		 */
-
-		*dst++ = '\n';
-		dstLen--;
-		sawLF++;
-	    }
-	    if (TranslateOutputEOL(statePtr, dst, src, &dstLen, &toWrite)) {
-		sawLF++;
-	    }
-	    dstLen += savedLF;
-	    savedLF = 0;
-	    if (dstLen > dstMax) {
-		savedLF = 1;
-		dstLen = dstMax;
-	    }
-	} else {
-	    memcpy(dst, src, toWrite);
-	    dstLen = toWrite;
-	}
-
-	bufPtr->nextAdded += dstLen;
-	if (CheckFlush(chanPtr, bufPtr, sawLF) != 0) {
-	    return -1;
-	}
-	total += dstLen;
-	src += toWrite;
-	srcLen -= toWrite;
-	sawLF = 0;
-    }
-    return total;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * WriteChars --
+ * Write --
  *
- *	Convert UTF-8 bytes to the channel's external encoding and write the
+ *	Convert srcLen bytes starting at src according to encoding and write
  *	produced bytes into an output buffer, may queue the buffer for output
  *	if it gets full, and also remembers whether the current buffer is
  *	ready e.g. if it contains a newline and we are in line buffering mode.
@@ -4034,381 +4190,164 @@ WriteBytes(
  */
 
 static int
-WriteChars(
+Write(
     Channel *chanPtr,		/* The channel to buffer output for. */
     const char *src,		/* UTF-8 string to write. */
-    int srcLen)			/* Length of UTF-8 string in bytes. */
+    int srcLen,			/* Length of UTF-8 string in bytes. */
+    Tcl_Encoding encoding)
 {
     ChannelState *statePtr = chanPtr->state;
 				/* State info for channel */
-    ChannelBuffer *bufPtr;
-    char *dst, *stage;
-    int saved, savedLF, sawLF, total, dstLen, stageMax, dstWrote;
-    int stageLen, toWrite, stageRead, endEncoding, result;
-    int consumedSomething, translate;
-    Tcl_Encoding encoding;
-    char safe[BUFFER_PADDING];
+    char *nextNewLine = NULL;
+    int endEncoding, saved = 0, total = 0, flushed = 0, needNlFlush = 0;
 
     if (srcLen) {
         WillWrite(chanPtr);
     }
 
-    total = 0;
-    sawLF = 0;
-    savedLF = 0;
-    saved = 0;
-    encoding = statePtr->encoding;
-
     /*
      * Write the terminated escape sequence even if srcLen is 0.
      */
 
     endEncoding = ((statePtr->outputEncodingFlags & TCL_ENCODING_END) != 0);
 
-    translate = GotFlag(statePtr, CHANNEL_LINEBUFFERED)
-	    || (statePtr->outputTranslation != TCL_TRANSLATE_LF);
-
-    /*
-     * Loop over all UTF-8 characters in src, storing them in staging buffer
-     * with proper EOL translation.
-     */
+    if (GotFlag(statePtr, CHANNEL_LINEBUFFERED)
+	    || (statePtr->outputTranslation != TCL_TRANSLATE_LF)) {
+	nextNewLine = memchr(src, '\n', srcLen);
+    }
 
-    consumedSomething = 1;
-    while (consumedSomething && (srcLen + savedLF + endEncoding > 0)) {
-	consumedSomething = 0;
-	stage = statePtr->outputStage;
-	stageMax = statePtr->bufSize;
-	stageLen = stageMax;
+    while (srcLen + saved + endEncoding > 0) {
+	ChannelBuffer *bufPtr;
+	char *dst, safe[BUFFER_PADDING];
+	int result, srcRead, dstLen, dstWrote, srcLimit = srcLen;
 
-	toWrite = stageLen;
-	if (toWrite > srcLen) {
-	    toWrite = srcLen;
+	if (nextNewLine) {
+	    srcLimit = nextNewLine - src;
 	}
-
-	if (translate) {
-	    if (savedLF) {
-		/*
-		 * A '\n' was left over from last call to TranslateOutputEOL()
-		 * and we need to store it in the staging buffer. If the
-		 * channel is line-based, we will need to flush the output
-		 * buffer (after translating the staging buffer).
-		 */
-
-		*stage++ = '\n';
-		stageLen--;
-		sawLF++;
-	    }
-	    if (TranslateOutputEOL(statePtr, stage, src, &stageLen,
-		    &toWrite)) {
-		sawLF++;
-	    }
-
-	    stage -= savedLF;
-	    stageLen += savedLF;
-	    savedLF = 0;
-
-	    if (stageLen > stageMax) {
-		savedLF = 1;
-		stageLen = stageMax;
-	    }
-	} else {
-	    memcpy(stage, src, toWrite);
-	    stageLen = toWrite;
+	
+	/* Get space to write into */
+	bufPtr = statePtr->curOutPtr;
+	if (bufPtr == NULL) {
+	    bufPtr = AllocChannelBuffer(statePtr->bufSize);
+	    statePtr->curOutPtr = bufPtr;
 	}
-	src += toWrite;
-	srcLen -= toWrite;
-
-	/*
-	 * Loop over all UTF-8 characters in staging buffer, converting them
-	 * to external encoding, storing them in output buffer.
-	 */
-
-	while (stageLen + saved + endEncoding > 0) {
-	    bufPtr = statePtr->curOutPtr;
-	    if (bufPtr == NULL) {
-		bufPtr = AllocChannelBuffer(statePtr->bufSize);
-		statePtr->curOutPtr = bufPtr;
-	    }
-	    dst = InsertPoint(bufPtr);
-	    dstLen = SpaceLeft(bufPtr);
-
-	    if (saved != 0) {
-		/*
-		 * Here's some translated bytes left over from the last buffer
-		 * that we need to stick at the beginning of this buffer.
-		 */
-
-		memcpy(dst, safe, (size_t) saved);
-		bufPtr->nextAdded += saved;
-		dst += saved;
-		dstLen -= saved;
-		saved = 0;
-	    }
-
-	    result = Tcl_UtfToExternal(NULL, encoding, stage, stageLen,
-		    statePtr->outputEncodingFlags,
-		    &statePtr->outputEncodingState, dst,
-		    dstLen + BUFFER_PADDING, &stageRead, &dstWrote, NULL);
-
+	if (saved) {
 	    /*
-	     * Fix for SF #506297, reported by Martin Forssen
-	     * <ruric@users.sourceforge.net>.
-	     *
-	     * The encoding chosen in the script exposing the bug writes out
-	     * three intro characters when TCL_ENCODING_START is set, but does
-	     * not consume any input as TCL_ENCODING_END is cleared. As some
-	     * output was generated the enclosing loop calls UtfToExternal
-	     * again, again with START set. Three more characters in the out
-	     * and still no use of input ... To break this infinite loop we
-	     * remove TCL_ENCODING_START from the set of flags after the first
-	     * call (no condition is required, the later calls remove an unset
-	     * flag, which is a no-op). This causes the subsequent calls to
-	     * UtfToExternal to consume and convert the actual input.
+	     * Here's some translated bytes left over from the last buffer
+	     * that we need to stick at the beginning of this buffer.
 	     */
 
-	    statePtr->outputEncodingFlags &= ~TCL_ENCODING_START;
+	    memcpy(InsertPoint(bufPtr), safe, (size_t) saved);
+	    bufPtr->nextAdded += saved;
+	    saved = 0;
+	}
+	PreserveChannelBuffer(bufPtr);
+	dst = InsertPoint(bufPtr);
+	dstLen = SpaceLeft(bufPtr);
+
+	result = Tcl_UtfToExternal(NULL, encoding, src, srcLimit,
+		statePtr->outputEncodingFlags,
+		&statePtr->outputEncodingState, dst,
+		dstLen + BUFFER_PADDING, &srcRead, &dstWrote, NULL);
+
+	/* See chan-io-1.[89]. Tcl Bug 506297. */
+	statePtr->outputEncodingFlags &= ~TCL_ENCODING_START;
+	
+	if ((result != TCL_OK) && (srcRead + dstWrote == 0)) {
+	    /* We're reading from invalid/incomplete UTF-8 */
+	    ReleaseChannelBuffer(bufPtr);
+	    if (total == 0) {
+		Tcl_SetErrno(EINVAL);
+		return -1;
+	    }
+	    break;
+	}
 
-	    /*
-	     * The following code must be executed only when result is not 0.
-	     */
+	bufPtr->nextAdded += dstWrote;
+	src += srcRead;
+	srcLen -= srcRead;
+	total += dstWrote;
+	dst += dstWrote;
+	dstLen -= dstWrote;
 
-	    if ((result != 0) && (stageRead + dstWrote == 0)) {
-		/*
-		 * We have an incomplete UTF-8 character at the end of the
-		 * staging buffer. It will get moved to the beginning of the
-		 * staging buffer followed by more bytes from src.
-		 */
+	if (src == nextNewLine && dstLen > 0) {
+	    static char crln[3] = "\r\n";
+	    char *nl = NULL;
+	    int nlLen = 0;
 
-		src -= stageLen;
-		srcLen += stageLen;
-		stageLen = 0;
-		savedLF = 0;
+	    switch (statePtr->outputTranslation) {
+	    case TCL_TRANSLATE_LF:
+		nl = crln + 1;
+		nlLen = 1;
+		break;
+	    case TCL_TRANSLATE_CR:
+		nl = crln;
+		nlLen = 1;
+		break;
+	    case TCL_TRANSLATE_CRLF:
+		nl = crln;
+		nlLen = 2;
+		break;
+	    default:
+		Tcl_Panic("unknown output translation requested");
 		break;
 	    }
-	    bufPtr->nextAdded += dstWrote;
-	    if (IsBufferOverflowing(bufPtr)) {
-		/*
-		 * When translating from UTF-8 to external encoding, we
-		 * allowed the translation to produce a character that crossed
-		 * the end of the output buffer, so that we would get a
-		 * completely full buffer before flushing it. The extra bytes
-		 * will be moved to the beginning of the next buffer.
-		 */
+	
+	    result |= Tcl_UtfToExternal(NULL, encoding, nl, nlLen,
+		statePtr->outputEncodingFlags,
+		&statePtr->outputEncodingState, dst,
+		dstLen + BUFFER_PADDING, &srcRead, &dstWrote, NULL);
 
-		saved = -SpaceLeft(bufPtr);
-		memcpy(safe, dst + dstLen, (size_t) saved);
-		bufPtr->nextAdded = bufPtr->bufLength;
-	    }
-	    if (CheckFlush(chanPtr, bufPtr, sawLF) != 0) {
-		return -1;
-	    }
+	    assert (srcRead == nlLen);
 
+	    bufPtr->nextAdded += dstWrote;
+	    src++;
+	    srcLen--;
 	    total += dstWrote;
-	    stage += stageRead;
-	    stageLen -= stageRead;
-	    sawLF = 0;
-
-	    consumedSomething = 1;
+	    dst += dstWrote;
+	    dstLen -= dstWrote;
+	    nextNewLine = memchr(src, '\n', srcLen);
+	    needNlFlush = 1;
+	}
 
+	if (IsBufferOverflowing(bufPtr)) {
 	    /*
-	     * If all translated characters are written to the buffer,
-	     * endEncoding is set to 0 because the escape sequence may be
-	     * output.
+	     * When translating from UTF-8 to external encoding, we
+	     * allowed the translation to produce a character that crossed
+	     * the end of the output buffer, so that we would get a
+	     * completely full buffer before flushing it. The extra bytes
+	     * will be moved to the beginning of the next buffer.
 	     */
 
-	    if ((stageLen + saved == 0) && (result == 0)) {
-		endEncoding = 0;
-	    }
-	}
-    }
-
-    /*
-     * If nothing was written and it happened because there was no progress in
-     * the UTF conversion, we throw an error.
-     */
-
-    if (!consumedSomething && (total == 0)) {
-	Tcl_SetErrno(EINVAL);
-	return -1;
-    }
-    return total;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * TranslateOutputEOL --
- *
- *	Helper function for WriteBytes() and WriteChars(). Converts the '\n'
- *	characters in the source buffer into the appropriate EOL form
- *	specified by the output translation mode.
- *
- *	EOL translation stops either when the source buffer is empty or the
- *	output buffer is full.
- *
- *	When converting to CRLF mode and there is only 1 byte left in the
- *	output buffer, this routine stores the '\r' in the last byte and then
- *	stores the '\n' in the byte just past the end of the buffer. The
- *	caller is responsible for passing in a buffer that is large enough to
- *	hold the extra byte.
- *
- * Results:
- *	The return value is 1 if a '\n' was translated from the source buffer,
- *	or 0 otherwise -- this can be used by the caller to decide to flush a
- *	line-based channel even though the channel buffer is not full.
- *
- *	*dstLenPtr is filled with how many bytes of the output buffer were
- *	used. As mentioned above, this can be one more that the output
- *	buffer's specified length if a CRLF was stored.
- *
- *	*srcLenPtr is filled with how many bytes of the source buffer were
- *	consumed.
- *
- * Side effects:
- *	It may be obvious, but bears mentioning that when converting in CRLF
- *	mode (which requires two bytes of storage in the output buffer), the
- *	number of bytes consumed from the source buffer will be less than the
- *	number of bytes stored in the output buffer.
- *
- *---------------------------------------------------------------------------
- */
-
-static int
-TranslateOutputEOL(
-    ChannelState *statePtr,	/* Channel being read, for translation and
-				 * buffering modes. */
-    char *dst,			/* Output buffer filled with UTF-8 chars by
-				 * applying appropriate EOL translation to
-				 * source characters. */
-    const char *src,		/* Source UTF-8 characters. */
-    int *dstLenPtr,		/* On entry, the maximum length of output
-				 * buffer in bytes. On exit, the number of
-				 * bytes actually used in output buffer. */
-    int *srcLenPtr)		/* On entry, the length of source buffer. On
-				 * exit, the number of bytes read from the
-				 * source buffer. */
-{
-    char *dstEnd;
-    int srcLen, newlineFound;
-
-    newlineFound = 0;
-    srcLen = *srcLenPtr;
-
-    switch (statePtr->outputTranslation) {
-    case TCL_TRANSLATE_LF:
-	for (dstEnd = dst + srcLen; dst < dstEnd; ) {
-	    if (*src == '\n') {
-		newlineFound = 1;
-	    }
-	    *dst++ = *src++;
+	    saved = -SpaceLeft(bufPtr);
+	    memcpy(safe, dst + dstLen, (size_t) saved);
+	    bufPtr->nextAdded = bufPtr->bufLength;
 	}
-	*dstLenPtr = srcLen;
-	break;
-    case TCL_TRANSLATE_CR:
-	for (dstEnd = dst + srcLen; dst < dstEnd;) {
-	    if (*src == '\n') {
-		*dst++ = '\r';
-		newlineFound = 1;
-		src++;
-	    } else {
-		*dst++ = *src++;
-	    }
-	}
-	*dstLenPtr = srcLen;
-	break;
-    case TCL_TRANSLATE_CRLF: {
-	/*
-	 * Since this causes the number of bytes to grow, we start off trying
-	 * to put 'srcLen' bytes into the output buffer, but allow it to store
-	 * more bytes, as long as there's still source bytes and room in the
-	 * output buffer.
-	 */
-
-	char *dstStart, *dstMax;
-	const char *srcStart;
 
-	dstStart = dst;
-	dstMax = dst + *dstLenPtr;
-
-	srcStart = src;
-
-	if (srcLen < *dstLenPtr) {
-	    dstEnd = dst + srcLen;
-	} else {
-	    dstEnd = dst + *dstLenPtr;
+	if ((srcLen + saved == 0) && (result == TCL_OK)) {
+	    endEncoding = 0;
 	}
-	while (dst < dstEnd) {
-	    if (*src == '\n') {
-		if (dstEnd < dstMax) {
-		    dstEnd++;
-		}
-		*dst++ = '\r';
-		newlineFound = 1;
-	    }
-	    *dst++ = *src++;
-	}
-	*srcLenPtr = src - srcStart;
-	*dstLenPtr = dst - dstStart;
-	break;
-    }
-    default:
-	break;
-    }
-    return newlineFound;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * CheckFlush --
- *
- *	Helper function for WriteBytes() and WriteChars(). If the channel
- *	buffer is ready to be flushed, flush it.
- *
- * Results:
- *	The return value is -1 if there was a problem flushing the channel
- *	buffer, or 0 otherwise.
- *
- * Side effects:
- *	The buffer will be recycled if it is flushed.
- *
- *---------------------------------------------------------------------------
- */
-
-static int
-CheckFlush(
-    Channel *chanPtr,		/* Channel being read, for buffering mode. */
-    ChannelBuffer *bufPtr,	/* Channel buffer to possibly flush. */
-    int newlineFlag)		/* Non-zero if a the channel buffer contains a
-				 * newline. */
-{
-    ChannelState *statePtr = chanPtr->state;
-				/* State info for channel */
-
-    /*
-     * The current buffer is ready for output:
-     * 1. if it is full.
-     * 2. if it contains a newline and this channel is line-buffered.
-     * 3. if it contains any output and this channel is unbuffered.
-     */
 
-    if (!GotFlag(statePtr, BUFFER_READY)) {
 	if (IsBufferFull(bufPtr)) {
-	    SetFlag(statePtr, BUFFER_READY);
-	} else if (GotFlag(statePtr, CHANNEL_LINEBUFFERED)) {
-	    if (newlineFlag != 0) {
-		SetFlag(statePtr, BUFFER_READY);
+	    if (FlushChannel(NULL, chanPtr, 0) != 0) {
+		ReleaseChannelBuffer(bufPtr);
+		return -1;
+	    }
+	    flushed += statePtr->bufSize;
+	    if (saved == 0 || src[-1] != '\n') {
+		needNlFlush = 0;
 	    }
-	} else if (GotFlag(statePtr, CHANNEL_UNBUFFERED)) {
-	    SetFlag(statePtr, BUFFER_READY);
 	}
+	ReleaseChannelBuffer(bufPtr);
     }
-    if (GotFlag(statePtr, BUFFER_READY)) {
+    if ((flushed < total) && (GotFlag(statePtr, CHANNEL_UNBUFFERED) ||
+	    (needNlFlush && GotFlag(statePtr, CHANNEL_LINEBUFFERED)))) {
 	if (FlushChannel(NULL, chanPtr, 0) != 0) {
 	    return -1;
 	}
     }
-    return 0;
+
+    return total;
 }
 
 /*
@@ -4490,8 +4429,22 @@ Tcl_GetsObj(
     Tcl_EncodingState oldState;
 
     if (CheckChannelErrors(statePtr, TCL_READABLE) != 0) {
-	copiedTotal = -1;
-	goto done;
+	return -1;
+    }
+
+    /*
+     * If we're sitting ready to read the eofchar, there's no need to
+     * do it.
+     */
+
+    if (GotFlag(statePtr, CHANNEL_STICKY_EOF)) {
+	SetFlag(statePtr, CHANNEL_EOF);
+	assert( statePtr->inputEncodingFlags & TCL_ENCODING_END );
+	assert( !GotFlag(statePtr, CHANNEL_BLOCKED|INPUT_SAW_CR) );
+
+	/* TODO: Do we need this? */
+	UpdateInterest(chanPtr);
+	return -1;
     }
 
     /*
@@ -4511,6 +4464,7 @@ Tcl_GetsObj(
      */
 
     chanPtr = statePtr->topChanPtr;
+    TclChannelPreserve((Tcl_Channel)chanPtr);
 
     bufPtr = statePtr->inQueueHead;
     encoding = statePtr->encoding;
@@ -4534,16 +4488,7 @@ Tcl_GetsObj(
      */
 
     if (encoding == NULL) {
-	ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
-
-	if (tsdPtr->binaryEncoding == NULL) {
-	    tsdPtr->binaryEncoding = Tcl_GetEncoding(NULL, "iso8859-1");
-	    Tcl_CreateThreadExitHandler(FreeBinaryEncoding, NULL);
-	}
-	encoding = tsdPtr->binaryEncoding;
-	if (encoding == NULL) {
-	    Tcl_Panic("attempted gets on binary channel where no iso8859-1 encoding available");
-	}
+	encoding = GetBinaryEncoding();
     }
 
     /*
@@ -4568,6 +4513,7 @@ Tcl_GetsObj(
     eof = NULL;
     inEofChar = statePtr->inEofChar;
 
+    ResetFlag(statePtr, CHANNEL_BLOCKED);
     while (1) {
 	if (dst >= dstEnd) {
 	    if (FilterInputBytes(chanPtr, &gs) != 0) {
@@ -4659,14 +4605,14 @@ Tcl_GetsObj(
 		     * Skip the raw bytes that make up the '\n'.
 		     */
 
-		    char tmp[1 + TCL_UTF_MAX];
+		    char tmp[TCL_UTF_MAX];
 		    int rawRead;
 
 		    bufPtr = gs.bufPtr;
 		    Tcl_ExternalToUtf(NULL, gs.encoding, RemovePoint(bufPtr),
-			    gs.rawRead, statePtr->inputEncodingFlags,
-			    &gs.state, tmp, 1 + TCL_UTF_MAX, &rawRead, NULL,
-			    NULL);
+			    gs.rawRead, statePtr->inputEncodingFlags
+				| TCL_ENCODING_NO_TERMINATE, &gs.state, tmp,
+			    TCL_UTF_MAX, &rawRead, NULL, NULL);
 		    bufPtr->nextRemoved += rawRead;
 		    gs.rawRead -= rawRead;
 		    gs.bytesWrote--;
@@ -4719,6 +4665,7 @@ Tcl_GetsObj(
 	    dstEnd = eof;
 	    SetFlag(statePtr, CHANNEL_EOF | CHANNEL_STICKY_EOF);
 	    statePtr->inputEncodingFlags |= TCL_ENCODING_END;
+	    ResetFlag(statePtr, CHANNEL_BLOCKED|INPUT_SAW_CR);
 	}
 	if (GotFlag(statePtr, CHANNEL_EOF)) {
 	    skip = 0;
@@ -4732,6 +4679,7 @@ Tcl_GetsObj(
 		Tcl_SetObjLength(objPtr, oldLength);
 		CommonGetsCleanup(chanPtr);
 		copiedTotal = -1;
+		ResetFlag(statePtr, CHANNEL_BLOCKED);
 		goto done;
 	    }
 	    goto gotEOL;
@@ -4753,7 +4701,11 @@ Tcl_GetsObj(
      * self-modifying reflected transforms.
      */
 
-    chanPtr = statePtr->topChanPtr;
+    if (chanPtr != statePtr->topChanPtr) {
+	TclChannelRelease((Tcl_Channel)chanPtr);
+	chanPtr = statePtr->topChanPtr;
+	TclChannelPreserve((Tcl_Channel)chanPtr);
+    }
 
     bufPtr = gs.bufPtr;
     if (bufPtr == NULL) {
@@ -4761,8 +4713,9 @@ Tcl_GetsObj(
     }
     statePtr->inputEncodingState = gs.state;
     Tcl_ExternalToUtf(NULL, gs.encoding, RemovePoint(bufPtr), gs.rawRead,
-	    statePtr->inputEncodingFlags, &statePtr->inputEncodingState, dst,
-	    eol - dst + skip + TCL_UTF_MAX, &gs.rawRead, NULL,
+	    statePtr->inputEncodingFlags | TCL_ENCODING_NO_TERMINATE,
+	    &statePtr->inputEncodingState, dst,
+	    eol - dst + skip + TCL_UTF_MAX - 1, &gs.rawRead, NULL,
 	    &gs.charsWrote);
     bufPtr->nextRemoved += gs.rawRead;
 
@@ -4787,16 +4740,18 @@ Tcl_GetsObj(
      * Regenerate the top channel, in case it was changed due to
      * self-modifying reflected transforms.
      */
-
-    chanPtr = statePtr->topChanPtr;
-
+    if (chanPtr != statePtr->topChanPtr) {
+	TclChannelRelease((Tcl_Channel)chanPtr);
+	chanPtr = statePtr->topChanPtr;
+	TclChannelPreserve((Tcl_Channel)chanPtr);
+    }
     bufPtr = statePtr->inQueueHead;
-    if (bufPtr == NULL) {
-	Tcl_Panic("Tcl_GetsObj: restore reached with bufPtr==NULL");
+    if (bufPtr != NULL) {
+	bufPtr->nextRemoved = oldRemoved;
+	bufPtr = bufPtr->nextPtr;
     }
-    bufPtr->nextRemoved = oldRemoved;
 
-    for (bufPtr = bufPtr->nextPtr; bufPtr != NULL; bufPtr = bufPtr->nextPtr) {
+    for ( ; bufPtr != NULL; bufPtr = bufPtr->nextPtr) {
 	bufPtr->nextRemoved = BUFFER_PADDING;
     }
     CommonGetsCleanup(chanPtr);
@@ -4825,14 +4780,24 @@ Tcl_GetsObj(
      */
 
   done:
+	assert(!GotFlag(statePtr, CHANNEL_EOF)
+		|| GotFlag(statePtr, CHANNEL_STICKY_EOF)
+		|| Tcl_InputBuffered((Tcl_Channel)chanPtr) == 0);
+
+	assert( !(GotFlag(statePtr, CHANNEL_EOF|CHANNEL_BLOCKED)
+		== (CHANNEL_EOF|CHANNEL_BLOCKED)) );
+
     /*
      * Regenerate the top channel, in case it was changed due to
      * self-modifying reflected transforms.
      */
-
-    chanPtr = statePtr->topChanPtr;
-
+    if (chanPtr != statePtr->topChanPtr) {
+	TclChannelRelease((Tcl_Channel)chanPtr);
+	chanPtr = statePtr->topChanPtr;
+	TclChannelPreserve((Tcl_Channel)chanPtr);
+    }
     UpdateInterest(chanPtr);
+    TclChannelRelease((Tcl_Channel)chanPtr);
     return copiedTotal;
 }
 
@@ -4845,6 +4810,11 @@ Tcl_GetsObj(
  *	end-of-line or end-of-file has been seen. Bytes read from the input
  *	channel return as a ByteArray obj.
  *
+ *	WARNING!  The notion of "binary" used here is different from
+ *	notions of "binary" used in other places.  In particular, this
+ *	"binary" routine may be called when an -eofchar is set on the
+ * 	channel.
+ *
  * Results:
  *	Number of characters accumulated in the object or -1 if error,
  *	blocked, or EOF. If -1, use Tcl_GetErrno() to retrieve the POSIX error
@@ -4878,6 +4848,7 @@ TclGetsObjBinary(
      */
 
     chanPtr = statePtr->topChanPtr;
+    TclChannelPreserve((Tcl_Channel)chanPtr);
 
     bufPtr = statePtr->inQueueHead;
 
@@ -4905,6 +4876,7 @@ TclGetsObjBinary(
 
     eolChar = (statePtr->inputTranslation == TCL_TRANSLATE_LF) ? '\n' : '\r';
 
+    ResetFlag(statePtr, CHANNEL_BLOCKED);
     while (1) {
 	/*
 	 * Subtract the number of bytes that were removed from channel
@@ -4924,17 +4896,24 @@ TclGetsObjBinary(
 	     * hasn't seen EOL. Need to read more bytes from the channel
 	     * device. Side effect is to allocate another channel buffer.
 	     */
-
-	    if (GotFlag(statePtr, CHANNEL_BLOCKED)) {
-		if (GotFlag(statePtr, CHANNEL_NONBLOCKING)) {
-		    goto restore;
-		}
-		ResetFlag(statePtr, CHANNEL_BLOCKED);
-	    }
 	    if (GetInput(chanPtr) != 0) {
 		goto restore;
 	    }
 	    bufPtr = statePtr->inQueueTail;
+	    if (bufPtr == NULL) {
+		goto restore;
+	    }
+	} else {
+	    /*
+	     * Incoming CHANNEL_STICKY_EOF is filtered out on entry.
+	     * A new CHANNEL_STICKY_EOF set in this routine leads to
+	     * return before coming back here.  When we are not dealing
+	     * with CHANNEL_STICKY_EOF, a CHANNEL_EOF implies an
+	     * empty buffer.  Here the buffer is non-empty so we know
+	     * we're a non-EOF */
+
+	    assert ( !GotFlag(statePtr, CHANNEL_STICKY_EOF) );
+	    assert ( !GotFlag(statePtr, CHANNEL_EOF) );
 	}
 
 	dst = (unsigned char *) RemovePoint(bufPtr);
@@ -4976,6 +4955,7 @@ TclGetsObjBinary(
 
 	    SetFlag(statePtr, CHANNEL_EOF | CHANNEL_STICKY_EOF);
 	    statePtr->inputEncodingFlags |= TCL_ENCODING_END;
+	    ResetFlag(statePtr, CHANNEL_BLOCKED|INPUT_SAW_CR);
 	}
 	if (GotFlag(statePtr, CHANNEL_EOF)) {
 	    skip = 0;
@@ -4989,10 +4969,15 @@ TclGetsObjBinary(
 		byteArray = Tcl_SetByteArrayLength(objPtr, oldLength);
 		CommonGetsCleanup(chanPtr);
 		copiedTotal = -1;
+		ResetFlag(statePtr, CHANNEL_BLOCKED);
 		goto done;
 	    }
 	    goto gotEOL;
 	}
+	if (GotFlag(statePtr, CHANNEL_BLOCKED|CHANNEL_NONBLOCKING)
+		== (CHANNEL_BLOCKED|CHANNEL_NONBLOCKING)) {
+	    goto restore;
+	}
 
 	/*
 	 * Copy bytes from the channel buffer to the ByteArray.
@@ -5047,12 +5032,12 @@ TclGetsObjBinary(
 
   restore:
     bufPtr = statePtr->inQueueHead;
-    if (bufPtr == NULL) {
-	Tcl_Panic("TclGetsObjBinary: restore reached with bufPtr==NULL");
+    if (bufPtr) {
+	bufPtr->nextRemoved = oldRemoved;
+	bufPtr = bufPtr->nextPtr;
     }
-    bufPtr->nextRemoved = oldRemoved;
 
-    for (bufPtr = bufPtr->nextPtr; bufPtr != NULL; bufPtr = bufPtr->nextPtr) {
+    for ( ; bufPtr != NULL; bufPtr = bufPtr->nextPtr) {
 	bufPtr->nextRemoved = BUFFER_PADDING;
     }
     CommonGetsCleanup(chanPtr);
@@ -5080,7 +5065,13 @@ TclGetsObjBinary(
      */
 
   done:
+	assert(!GotFlag(statePtr, CHANNEL_EOF)
+		|| GotFlag(statePtr, CHANNEL_STICKY_EOF)
+		|| Tcl_InputBuffered((Tcl_Channel)chanPtr) == 0);
+	assert( !(GotFlag(statePtr, CHANNEL_EOF|CHANNEL_BLOCKED)
+		== (CHANNEL_EOF|CHANNEL_BLOCKED)) );
     UpdateInterest(chanPtr);
+    TclChannelRelease((Tcl_Channel)chanPtr);
     return copiedTotal;
 }
 
@@ -5109,6 +5100,21 @@ FreeBinaryEncoding(
 	tsdPtr->binaryEncoding = NULL;
     }
 }
+
+static Tcl_Encoding
+GetBinaryEncoding()
+{
+    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+
+    if (tsdPtr->binaryEncoding == NULL) {
+	tsdPtr->binaryEncoding = Tcl_GetEncoding(NULL, "iso8859-1");
+	Tcl_CreateThreadExitHandler(FreeBinaryEncoding, NULL);
+    }
+    if (tsdPtr->binaryEncoding == NULL) {
+	Tcl_Panic("binary encoding is not available");
+    }
+    return tsdPtr->binaryEncoding;
+}
 
 /*
  *---------------------------------------------------------------------------
@@ -5142,7 +5148,7 @@ FilterInputBytes(
     ChannelState *statePtr = chanPtr->state;
 				/* State info for channel */
     ChannelBuffer *bufPtr;
-    char *raw, *rawStart, *dst;
+    char *raw, *dst;
     int offset, toRead, dstNeeded, spaceLeft, result, rawLen;
     Tcl_Obj *objPtr;
 #define ENCODING_LINESIZE 20	/* Lower bound on how many bytes to convert at
@@ -5176,13 +5182,11 @@ FilterInputBytes(
 	 */
 
     read:
-	if (GotFlag(statePtr, CHANNEL_BLOCKED)) {
-	    if (GotFlag(statePtr, CHANNEL_NONBLOCKING)) {
-		gsPtr->charsWrote = 0;
-		gsPtr->rawRead = 0;
-		return -1;
-	    }
-	    ResetFlag(statePtr, CHANNEL_BLOCKED);
+	if (GotFlag(statePtr, CHANNEL_NONBLOCKING|CHANNEL_BLOCKED)
+		== (CHANNEL_NONBLOCKING|CHANNEL_BLOCKED)) {
+	    gsPtr->charsWrote = 0;
+	    gsPtr->rawRead = 0;
+	    return -1;
 	}
 	if (GetInput(chanPtr) != 0) {
 	    gsPtr->charsWrote = 0;
@@ -5191,6 +5195,22 @@ FilterInputBytes(
 	}
 	bufPtr = statePtr->inQueueTail;
 	gsPtr->bufPtr = bufPtr;
+	if (bufPtr == NULL) {
+	    gsPtr->charsWrote = 0;
+	    gsPtr->rawRead = 0;
+	    return -1;
+	}
+    } else {
+	/*
+	 * Incoming CHANNEL_STICKY_EOF is filtered out on entry.
+	 * A new CHANNEL_STICKY_EOF set in this routine leads to
+	 * return before coming back here.  When we are not dealing
+	 * with CHANNEL_STICKY_EOF, a CHANNEL_EOF implies an
+	 * empty buffer.  Here the buffer is non-empty so we know
+	 * we're a non-EOF */
+
+	assert ( !GotFlag(statePtr, CHANNEL_STICKY_EOF) );
+	assert ( !GotFlag(statePtr, CHANNEL_EOF) );
     }
 
     /*
@@ -5199,8 +5219,7 @@ FilterInputBytes(
      * string rep if we need more space.
      */
 
-    rawStart = RemovePoint(bufPtr);
-    raw = rawStart;
+    raw = RemovePoint(bufPtr);
     rawLen = BytesLeft(bufPtr);
 
     dst = *gsPtr->dstPtr;
@@ -5228,9 +5247,9 @@ FilterInputBytes(
     }
     gsPtr->state = statePtr->inputEncodingState;
     result = Tcl_ExternalToUtf(NULL, gsPtr->encoding, raw, rawLen,
-	    statePtr->inputEncodingFlags, &statePtr->inputEncodingState,
-	    dst, spaceLeft+1, &gsPtr->rawRead, &gsPtr->bytesWrote,
-	    &gsPtr->charsWrote);
+	    statePtr->inputEncodingFlags | TCL_ENCODING_NO_TERMINATE,
+	    &statePtr->inputEncodingState, dst, spaceLeft, &gsPtr->rawRead,
+	    &gsPtr->bytesWrote, &gsPtr->charsWrote);
 
     /*
      * Make sure that if we go through 'gets', that we reset the
@@ -5267,7 +5286,7 @@ FilterInputBytes(
 	    } else {
 		/*
 		 * There are no more cached raw bytes left. See if we can get
-		 * some more.
+		 * some more, but avoid blocking on a non-blocking channel.
 		 */
 
 		goto read;
@@ -5508,134 +5527,87 @@ Tcl_Read(
 int
 Tcl_ReadRaw(
     Tcl_Channel chan,		/* The channel from which to read. */
-    char *bufPtr,		/* Where to store input read. */
+    char *readBuf,		/* Where to store input read. */
     int bytesToRead)		/* Maximum number of bytes to read. */
 {
     Channel *chanPtr = (Channel *) chan;
     ChannelState *statePtr = chanPtr->state;
 				/* State info for channel */
-    int nread, result, copied, copiedNow;
-
-    /*
-     * The check below does too much because it will reject a call to this
-     * function with a channel which is part of an 'fcopy'. But we have to
-     * allow this here or else the chaining in the transformation drivers will
-     * fail with 'file busy' error instead of retrieving and transforming the
-     * data to copy.
-     *
-     * We let the check procedure now believe that there is no fcopy in
-     * progress. A better solution than this might be an additional flag
-     * argument to switch off specific checks.
-     */
+    int copied = 0;
 
+    assert(bytesToRead > 0);
     if (CheckChannelErrors(statePtr, TCL_READABLE | CHANNEL_RAW_MODE) != 0) {
 	return -1;
     }
 
-    /*
-     * Check for information in the push-back buffers. If there is some, use
-     * it. Go to the driver only if there is none (anymore) and the caller
-     * requests more bytes.
-     */
+    /* First read bytes from the push-back buffers. */
 
-    for (copied = 0; copied < bytesToRead; copied += copiedNow) {
-	copiedNow = CopyBuffer(chanPtr, bufPtr + copied,
-		bytesToRead - copied);
-	if (copiedNow == 0) {
-	    if (GotFlag(statePtr, CHANNEL_EOF)) {
-		goto done;
-	    }
-	    if (GotFlag(statePtr, CHANNEL_BLOCKED)) {
-		if (GotFlag(statePtr, CHANNEL_NONBLOCKING)) {
-		    goto done;
-		}
-		ResetFlag(statePtr, CHANNEL_BLOCKED);
-	    }
+    while (chanPtr->inQueueHead && bytesToRead > 0) {
+	ChannelBuffer *bufPtr = chanPtr->inQueueHead;
+	int bytesInBuffer = BytesLeft(bufPtr);
+	int toCopy = (bytesInBuffer < bytesToRead) ? bytesInBuffer
+		: bytesToRead;
 
-#ifdef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-	    /*
-	     * [Bug 943274]. Better emulation of non-blocking channels for
-	     * channels without BlockModeProc, by keeping track of true
-	     * fileevents generated by the OS == Data waiting and reading if
-	     * and only if we are sure to have data.
-	     */
+	/* Copy the current chunk into the read buffer. */
 
-	    if (GotFlag(statePtr, CHANNEL_NONBLOCKING) &&
-		    (Tcl_ChannelBlockModeProc(chanPtr->typePtr) == NULL) &&
-		    !GotFlag(statePtr, CHANNEL_HAS_MORE_DATA)) {
-		/*
-		 * We bypass the driver; it would block as no data is
-		 * available.
-		 */
+	memcpy(readBuf, RemovePoint(bufPtr), (size_t) toCopy);
+	bufPtr->nextRemoved += toCopy;
+	copied += toCopy;
+	readBuf += toCopy;
+	bytesToRead -= toCopy;
 
-		nread = -1;
-		result = EWOULDBLOCK;
-	    } else
-#endif /* TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING */
-	    {
-		/*
-		 * Now go to the driver to get as much as is possible to fill
-		 * the remaining request. Do all the error handling by
-		 * ourselves. The code was stolen from 'GetInput' and slightly
-		 * adapted (different return value here).
-		 *
-		 * The case of 'bytesToRead == 0' at this point cannot happen.
-		 */
+	/* If the current buffer is empty recycle it. */
 
-		nread = ChanRead(chanPtr, bufPtr + copied,
-			bytesToRead - copied, &result);
+	if (IsBufferEmpty(bufPtr)) {
+	    chanPtr->inQueueHead = bufPtr->nextPtr;
+	    if (chanPtr->inQueueHead == NULL) {
+		chanPtr->inQueueTail = NULL;
 	    }
+	    RecycleBuffer(chanPtr->state, bufPtr, 0);
+	}
+    }
 
-	    if (nread > 0) {
-		/*
-		 * If we get a short read, signal up that we may be BLOCKED.
-		 * We should avoid calling the driver because on some
-		 * platforms we will block in the low level reading code even
-		 * though the channel is set into nonblocking mode.
-		 */
-
-		if (nread < (bytesToRead - copied)) {
-		    SetFlag(statePtr, CHANNEL_BLOCKED);
-		}
-
-#ifdef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-		if (nread <= (bytesToRead - copied)) {
-		    /*
-		     * [Bug 943274] We have read the available data, clear
-		     * flag.
-		     */
+    /*
+     * Go to the driver only if we got nothing from pushback.
+     * Have to do it this way to avoid EOF mis-timings when we
+     * consider the ability that EOF may not be a permanent
+     * condition in the driver, and in that case we have to
+     * synchronize.
+     */
 
-		    ResetFlag(statePtr, CHANNEL_HAS_MORE_DATA);
-		}
-#endif /* TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING */
-	    } else if (nread == 0) {
-		SetFlag(statePtr, CHANNEL_EOF);
-		statePtr->inputEncodingFlags |= TCL_ENCODING_END;
-
-	    } else if (nread < 0) {
-		if ((result == EWOULDBLOCK) || (result == EAGAIN)) {
-		    if (copied > 0) {
-			/*
-			 * Information that was copied earlier has precedence
-			 * over EAGAIN/WOULDBLOCK handling.
-			 */
+    if (copied) {
+	return copied;
+    }
 
-			return copied;
-		    }
+    /* This test not needed. */
+    if (bytesToRead > 0) {
 
-		    SetFlag(statePtr, CHANNEL_BLOCKED);
-		    result = EAGAIN;
-		}
+	int nread = ChanRead(chanPtr, readBuf, bytesToRead);
 
-		Tcl_SetErrno(result);
-		return -1;
+	if (nread > 0) {
+	    /* Successful read (short is OK) - add to bytes copied */
+	    copied += nread;
+	} else if (nread < 0) {
+	    /*
+	     * An error signaled.  If CHANNEL_BLOCKED, then the error
+	     * is not real, but an indication of blocked state.  In
+	     * that case, retain the flag and let caller receive the
+	     * short read of copied bytes from the pushback.
+	     * HOWEVER, if copied==0 bytes from pushback then repeat
+	     * signalling the blocked state as an error to caller so
+	     * there is no false report of an EOF.
+	     * When !CHANNEL_BLOCKED, the error is real and passes on
+	     * to caller.
+	     */
+	    if (!GotFlag(statePtr, CHANNEL_BLOCKED) || copied == 0) {
+		copied = -1;
 	    }
-
-	    return copied + nread;
+	} else {
+	    /*
+	     * nread == 0.  Driver is at EOF. Let that state filter up.
+	     */
 	}
     }
-
-  done:
     return copied;
 }
 
@@ -5732,20 +5704,18 @@ DoReadChars(
     ChannelState *statePtr = chanPtr->state;
 				/* State info for channel */
     ChannelBuffer *bufPtr;
-    int offset, factor, copied, copiedNow, result;
-    Tcl_Encoding encoding;
+    int copied, copiedNow, result;
+    Tcl_Encoding encoding = statePtr->encoding;
+    int binaryMode;
 #define UTF_EXPANSION_FACTOR	1024
+    int factor = UTF_EXPANSION_FACTOR;
 
-    /*
-     * This operation should occur at the top of a channel stack.
-     */
-
-    chanPtr = statePtr->topChanPtr;
-    encoding = statePtr->encoding;
-    factor = UTF_EXPANSION_FACTOR;
+    binaryMode = (encoding == NULL)
+	    && (statePtr->inputTranslation == TCL_TRANSLATE_LF) 
+	    && (statePtr->inEofChar == '\0');
 
     if (appendFlag == 0) {
-	if (encoding == NULL) {
+	if (binaryMode) {
 	    Tcl_SetByteArrayLength(objPtr, 0);
 	} else {
 	    Tcl_SetObjLength(objPtr, 0);
@@ -5754,27 +5724,61 @@ DoReadChars(
 	     * We're going to access objPtr->bytes directly, so we must ensure
 	     * that this is actually a string object (otherwise it might have
 	     * been pure Unicode).
+	     *
+	     * Probably not needed anymore.
 	     */
 
 	    TclGetString(objPtr);
 	}
-	offset = 0;
-    } else {
-	if (encoding == NULL) {
-	    Tcl_GetByteArrayFromObj(objPtr, &offset);
-	} else {
-	    TclGetStringFromObj(objPtr, &offset);
+    }
+
+    /*
+     * Early out when next read will see eofchar.
+     *
+     * NOTE: See DoRead for argument that it's a bug (one we're keeping)
+     * to have this escape before the one for zero-char read request.
+     */
+
+    if (GotFlag(statePtr, CHANNEL_STICKY_EOF)) {
+	SetFlag(statePtr, CHANNEL_EOF);
+	assert( statePtr->inputEncodingFlags & TCL_ENCODING_END );
+	assert( !GotFlag(statePtr, CHANNEL_BLOCKED|INPUT_SAW_CR) );
+
+	UpdateInterest(chanPtr);
+	return 0;
+    }
+
+    /* Special handling for zero-char read request. */
+    if (toRead == 0) {
+	if (GotFlag(statePtr, CHANNEL_EOF)) {
+	    statePtr->inputEncodingFlags |= TCL_ENCODING_START;
 	}
+	ResetFlag(statePtr, CHANNEL_BLOCKED|CHANNEL_EOF);
+	statePtr->inputEncodingFlags &= ~TCL_ENCODING_END;
+	UpdateInterest(chanPtr);
+	return 0;
     }
 
+    /*
+     * This operation should occur at the top of a channel stack.
+     */
+
+    chanPtr = statePtr->topChanPtr;
+    TclChannelPreserve((Tcl_Channel)chanPtr);
+
+    /* Must clear the BLOCKED|EOF flags here since we check before reading */
+    if (GotFlag(statePtr, CHANNEL_EOF)) {
+	statePtr->inputEncodingFlags |= TCL_ENCODING_START;
+    }
+    ResetFlag(statePtr, CHANNEL_BLOCKED|CHANNEL_EOF);
+    statePtr->inputEncodingFlags &= ~TCL_ENCODING_END;
     for (copied = 0; (unsigned) toRead > 0; ) {
 	copiedNow = -1;
 	if (statePtr->inQueueHead != NULL) {
-	    if (encoding == NULL) {
-		copiedNow = ReadBytes(statePtr, objPtr, toRead, &offset);
+	    if (binaryMode) {
+		copiedNow = ReadBytes(statePtr, objPtr, toRead);
 	    } else {
-		copiedNow = ReadChars(statePtr, objPtr, toRead, &offset,
-			&factor);
+		copiedNow = ReadChars(statePtr, objPtr, toRead, &factor);
 	    }
 
 	    /*
@@ -5797,19 +5801,21 @@ DoReadChars(
 	    if (GotFlag(statePtr, CHANNEL_EOF)) {
 		break;
 	    }
-	    if (GotFlag(statePtr, CHANNEL_BLOCKED)) {
-		if (GotFlag(statePtr, CHANNEL_NONBLOCKING)) {
-		    break;
-		}
-		ResetFlag(statePtr, CHANNEL_BLOCKED);
+	    if (GotFlag(statePtr, CHANNEL_NONBLOCKING|CHANNEL_BLOCKED)
+		    == (CHANNEL_NONBLOCKING|CHANNEL_BLOCKED)) {
+		break;
 	    }
 	    result = GetInput(chanPtr);
+	    if (chanPtr != statePtr->topChanPtr) {
+		TclChannelRelease((Tcl_Channel)chanPtr);
+		chanPtr = statePtr->topChanPtr;
+		TclChannelPreserve((Tcl_Channel)chanPtr);
+	    }
 	    if (result != 0) {
-		if (result == EAGAIN) {
-		    break;
+		if (!GotFlag(statePtr, CHANNEL_BLOCKED)) {
+		    copied = -1;
 		}
-		copied = -1;
-		goto done;
+		break;
 	    }
 	} else {
 	    copied += copiedNow;
@@ -5817,27 +5823,36 @@ DoReadChars(
 	}
     }
 
-    ResetFlag(statePtr, CHANNEL_BLOCKED);
-    if (encoding == NULL) {
-	Tcl_SetByteArrayLength(objPtr, offset);
-    } else {
-	Tcl_SetObjLength(objPtr, offset);
-    }
-
     /*
-     * Update the notifier state so we don't block while there is still data
-     * in the buffers.
+     * Failure to fill a channel buffer may have left channel reporting
+     * a "blocked" state, but so long as we fulfilled the request here,
+     * the caller does not consider us blocked.
      */
+    if (toRead == 0) {
+	ResetFlag(statePtr, CHANNEL_BLOCKED);
+    }
 
-  done:
     /*
      * Regenerate the top channel, in case it was changed due to
      * self-modifying reflected transforms.
      */
+    if (chanPtr != statePtr->topChanPtr) {
+	TclChannelRelease((Tcl_Channel)chanPtr);
+	chanPtr = statePtr->topChanPtr;
+	TclChannelPreserve((Tcl_Channel)chanPtr);
+    }
 
-    chanPtr = statePtr->topChanPtr;
-
+    /*
+     * Update the notifier state so we don't block while there is still data
+     * in the buffers.
+     */
+	assert(!GotFlag(statePtr, CHANNEL_EOF)
+		|| GotFlag(statePtr, CHANNEL_STICKY_EOF)
+		|| Tcl_InputBuffered((Tcl_Channel)chanPtr) == 0);
+	assert( !(GotFlag(statePtr, CHANNEL_EOF|CHANNEL_BLOCKED)
+		== (CHANNEL_EOF|CHANNEL_BLOCKED)) );
     UpdateInterest(chanPtr);
+    TclChannelRelease((Tcl_Channel)chanPtr);
     return copied;
 }
 
@@ -5855,13 +5870,11 @@ DoReadChars(
  *	allocated to hold data read from the channel as needed.
  *
  * Results:
- *	The return value is the number of bytes appended to the object and
- *	*offsetPtr is filled with the total number of bytes in the object
- *	(greater than the return value if there were already bytes in the
- *	object).
+ *	The return value is the number of bytes appended to the object, or
+ *	-1 to indicate that zero bytes were read due to an EOF.
  *
  * Side effects:
- *	None.
+ *	The storage of bytes in objPtr can cause (re-)allocation of memory.
  *
  *---------------------------------------------------------------------------
  */
@@ -5874,72 +5887,22 @@ ReadBytes(
 				 * been allocated to hold data, not how many
 				 * bytes of data have been stored in the
 				 * object. */
-    int bytesToRead,		/* Maximum number of bytes to store, or < 0 to
+    int bytesToRead)		/* Maximum number of bytes to store, or < 0 to
 				 * get all available bytes. Bytes are obtained
 				 * from the first buffer in the queue - even
 				 * if this number is larger than the number of
 				 * bytes available in the first buffer, only
 				 * the bytes from the first buffer are
 				 * returned. */
-    int *offsetPtr)		/* On input, contains how many bytes of objPtr
-				 * have been used to hold data. On output,
-				 * filled with how many bytes are now being
-				 * used. */
 {
-    int toRead, srcLen, offset, length, srcRead, dstWrote;
-    ChannelBuffer *bufPtr;
-    char *src, *dst;
-
-    offset = *offsetPtr;
-
-    bufPtr = statePtr->inQueueHead;
-    src = RemovePoint(bufPtr);
-    srcLen = BytesLeft(bufPtr);
-
-    toRead = bytesToRead;
-    if ((unsigned) toRead > (unsigned) srcLen) {
-	toRead = srcLen;
-    }
-
-    dst = (char *) Tcl_GetByteArrayFromObj(objPtr, &length);
-    if (toRead > length - offset - 1) {
-	/*
-	 * Double the existing size of the object or make enough room to hold
-	 * all the characters we may get from the source buffer, whichever is
-	 * larger.
-	 */
-
-	length = offset * 2;
-	if (offset < toRead) {
-	    length = offset + toRead + 1;
-	}
-	dst = (char *) Tcl_SetByteArrayLength(objPtr, length);
-    }
-    dst += offset;
+    ChannelBuffer *bufPtr = statePtr->inQueueHead;
+    int srcLen = BytesLeft(bufPtr);
+    int toRead = bytesToRead>srcLen || bytesToRead<0 ? srcLen : bytesToRead;
 
-    if (GotFlag(statePtr, INPUT_NEED_NL)) {
-	ResetFlag(statePtr, INPUT_NEED_NL);
-	if ((srcLen == 0) || (*src != '\n')) {
-	    *dst = '\r';
-	    *offsetPtr += 1;
-	    return 1;
-	}
-	*dst++ = '\n';
-	src++;
-	srcLen--;
-	toRead--;
-    }
-
-    srcRead = srcLen;
-    dstWrote = toRead;
-    if (TranslateInputEOL(statePtr, dst, src, &dstWrote, &srcRead) != 0) {
-	if (dstWrote == 0) {
-	    return -1;
-	}
-    }
-    bufPtr->nextRemoved += srcRead;
-    *offsetPtr += dstWrote;
-    return dstWrote;
+    TclAppendBytesToByteArray(objPtr, (unsigned char *) RemovePoint(bufPtr),
+	    toRead);
+    bufPtr->nextRemoved += toRead;
+    return toRead;
 }
 
 /*
@@ -5983,262 +5946,371 @@ ReadChars(
 				 * is larger than the number of characters
 				 * available in the first buffer, only the
 				 * characters from the first buffer are
-				 * returned. */
-    int *offsetPtr,		/* On input, contains how many bytes of objPtr
-				 * have been used to hold data. On output,
-				 * filled with how many bytes are now being
-				 * used. */
+				 * returned. The execption is when there is
+				 * not any complete character in the first
+				 * buffer.  In that case, a recursive call
+				 * effectively obtains chars from the
+				 * second buffer. */
     int *factorPtr)		/* On input, contains a guess of how many
 				 * bytes need to be allocated to hold the
 				 * result of converting N source bytes to
 				 * UTF-8. On output, contains another guess
 				 * based on the data seen so far. */
 {
-    int toRead, factor, offset, spaceLeft, srcLen, dstNeeded;
-    int srcRead, dstWrote, numChars, dstRead;
-    ChannelBuffer *bufPtr;
-    char *src, *dst;
-    Tcl_EncodingState oldState;
-    int encEndFlagSuppressed = 0;
+    Tcl_Encoding encoding = statePtr->encoding? statePtr->encoding
+	    : GetBinaryEncoding();
+    Tcl_EncodingState savedState = statePtr->inputEncodingState;
+    ChannelBuffer *bufPtr = statePtr->inQueueHead;
+    int savedIEFlags = statePtr->inputEncodingFlags;
+    int savedFlags = statePtr->flags;
+    char *dst, *src = RemovePoint(bufPtr);
+    int numBytes, srcLen = BytesLeft(bufPtr);
 
-    factor = *factorPtr;
-    offset = *offsetPtr;
-
-    bufPtr = statePtr->inQueueHead;
-    src = RemovePoint(bufPtr);
-    srcLen = BytesLeft(bufPtr);
+    /*
+     * One src byte can yield at most one character.  So when the
+     * number of src bytes we plan to read is less than the limit on
+     * character count to be read, clearly we will remain within that
+     * limit, and we can use the value of "srcLen" as a tighter limit
+     * for sizing receiving buffers.
+     */
 
-    toRead = charsToRead;
-    if ((unsigned) toRead > (unsigned) srcLen) {
-	toRead = srcLen;
-    }
+    int toRead = ((charsToRead<0)||(charsToRead > srcLen)) ? srcLen : charsToRead;
 
     /*
      * 'factor' is how much we guess that the bytes in the source buffer will
      * expand when converted to UTF-8 chars. This guess comes from analyzing
      * how many characters were produced by the previous pass.
      */
+    
+    int factor = *factorPtr;
+    int dstLimit = TCL_UTF_MAX - 1 + toRead * factor / UTF_EXPANSION_FACTOR;
 
-    dstNeeded = TCL_UTF_MAX - 1 + toRead * factor / UTF_EXPANSION_FACTOR;
-    spaceLeft = objPtr->length - offset;
-
-    if (dstNeeded > spaceLeft) {
-	/*
-	 * Double the existing size of the object or make enough room to hold
-	 * all the characters we want from the source buffer, whichever is
-	 * larger.
-	 */
-
-	int length = offset + ((offset < dstNeeded) ? dstNeeded : offset);
-
-	if (Tcl_AttemptSetObjLength(objPtr, length) == 0) {
-	    length = offset + dstNeeded;
-	    if (Tcl_AttemptSetObjLength(objPtr, length) == 0) {
-		dstNeeded = TCL_UTF_MAX - 1 + toRead;
-		length = offset + dstNeeded;
-		Tcl_SetObjLength(objPtr, length);
-	    }
-	}
-	spaceLeft = length - offset;
-    }
+    (void) TclGetStringFromObj(objPtr, &numBytes);
+    Tcl_AppendToObj(objPtr, NULL, dstLimit);
     if (toRead == srcLen) {
-	/*
-	 * Want to convert the whole buffer in one pass. If we have enough
-	 * space, convert it using all available space in object rather than
-	 * using the factor.
-	 */
-
-	dstNeeded = spaceLeft;
+	unsigned int size;
+	dst = TclGetStringStorage(objPtr, &size) + numBytes;
+	dstLimit = size - numBytes;
+    } else {
+	dst = TclGetString(objPtr) + numBytes;
     }
-    dst = objPtr->bytes + offset;
 
     /*
-     * [Bug 1462248]: The cause of the crash reported in this bug is this:
+     * This routine is burdened with satisfying several constraints.
+     * It cannot append more than 'charsToRead` chars onto objPtr.
+     * This is measured after encoding and translation transformations
+     * are completed.  There is no precise number of src bytes that can
+     * be associated with the limit.  Yet, when we are done, we must know
+     * precisely the number of src bytes that were consumed to produce
+     * the appended chars, so that all subsequent bytes are left in
+     * the buffers for future read operations.
      *
-     * - ReadChars, called with a single buffer, with a incomplete
-     *	 multi-byte character at the end (only the first byte of it).
-     * - Encoding translation fails, asks for more data
-     * - Data is read, and eof is reached, TCL_ENCODING_END (TEE) is set.
-     * - ReadChar is called again, converts the first buffer, but due to TEE
-     *	 it does not check for incomplete multi-byte data, and the character
-     *	 just after the end of the first buffer is a valid completion of the
-     *	 multi-byte header in the actual buffer. The conversion reads more
-     *	 characters from the buffer then present. This causes nextRemoved to
-     *	 overshoot nextAdded and the next reads compute a negative srcLen,
-     *	 cause further translations to fail, causing copying of data into the
-     *	 next buffer using bad arguments, causing the mecpy for to eventually
-     *	 fail.
-     *
-     * In the end it is a memory access bug spiraling out of control if the
-     * conditions are _just so_. And ultimate cause is that TEE is given to a
-     * conversion where it should not. TEE signals that this is the last
-     * buffer. Except in our case it is not.
-     *
-     * My solution is to suppress TEE if the first buffer is not the last. We
-     * will eventually need it given that EOF has been reached, but not right
-     * now. This is what the new flag "endEncSuppressFlag" is for.
-     *
-     * The bug in 'Tcl_Utf2UtfProc' where it read from memory behind the
-     * actual buffer has been fixed as well, and fixes the problem with the
-     * crash too, but this would still allow the generic layer to
-     * accidentially break a multi-byte sequence if the conditions are just
-     * right, because again the ExternalToUtf would be successful where it
-     * should not.
+     * The consequence is that we have no choice but to implement a
+     * "trial and error" approach, where in general we may need to
+     * perform transformations and copies multiple times to achieve
+     * a consistent set of results.  This takes the shape of a loop.
      */
 
-    if ((statePtr->inputEncodingFlags & TCL_ENCODING_END) &&
-	    (bufPtr->nextPtr != NULL)) {
+    while (1) {
+	int dstDecoded, dstRead, dstWrote, srcRead, numChars, code;
+	int flags = statePtr->inputEncodingFlags | TCL_ENCODING_NO_TERMINATE;
+	
+	if (charsToRead > 0) {
+	    flags |= TCL_ENCODING_CHAR_LIMIT;
+	    numChars = charsToRead;
+	}
+
 	/*
-	 * TEE is set for a buffer which is not the last. Squash it for now,
-	 * and restore it later, before yielding control to our caller.
+	 * Perform the encoding transformation.  Read no more than
+	 * srcLen bytes, write no more than dstLimit bytes.
+	 *
+	 * Some trickiness with encoding flags here.  We do not want
+	 * the end of a buffer to be treated as the end of all input
+	 * when the presence of bytes in a next buffer are already
+	 * known to exist.  This is checked with an assert() because
+	 * so far no test case causing the assertion to be false has
+	 * been created.  The normal operations of channel reading
+	 * appear to cause EOF and TCL_ENCODING_END setting to appear
+	 * only in situations where there are no further bytes in
+	 * any buffers.
 	 */
 
-	statePtr->inputEncodingFlags &= ~TCL_ENCODING_END;
-	encEndFlagSuppressed = 1;
-    }
+	assert(bufPtr->nextPtr == NULL || BytesLeft(bufPtr->nextPtr) == 0
+		|| (statePtr->inputEncodingFlags & TCL_ENCODING_END) == 0);
+
+	code = Tcl_ExternalToUtf(NULL, encoding, src, srcLen,
+		flags, &statePtr->inputEncodingState,
+		dst, dstLimit, &srcRead, &dstDecoded, &numChars);
 
-    oldState = statePtr->inputEncodingState;
-    if (GotFlag(statePtr, INPUT_NEED_NL)) {
 	/*
-	 * We want a '\n' because the last character we saw was '\r'.
+	 * Perform the translation transformation in place.  Read no more
+	 * than the dstDecoded bytes the encoding transformation actually
+	 * produced.  Capture the number of bytes written in dstWrote.
+	 * Capture the number of bytes actually consumed in dstRead.
 	 */
 
-	ResetFlag(statePtr, INPUT_NEED_NL);
-	Tcl_ExternalToUtf(NULL, statePtr->encoding, src, srcLen,
-		statePtr->inputEncodingFlags, &statePtr->inputEncodingState,
-		dst, TCL_UTF_MAX + 1, &srcRead, &dstWrote, &numChars);
-	if ((dstWrote > 0) && (*dst == '\n')) {
+	dstWrote = dstLimit;
+	dstRead = dstDecoded;
+	TranslateInputEOL(statePtr, dst, dst, &dstWrote, &dstRead);
+
+	if (dstRead < dstDecoded) {
+
 	    /*
-	     * The next char was a '\n'. Consume it and produce a '\n'.
+	     * The encoding transformation produced bytes that the
+	     * translation transformation did not consume.  Why did
+	     * this happen?
 	     */
 
-	    bufPtr->nextRemoved += srcRead;
-	} else {
+	    if (statePtr->inEofChar && dst[dstRead] == statePtr->inEofChar) {
+		/*
+		 * 1) There's an eof char set on the channel, and
+		 *    we saw it and stopped translating at that point.
+		 *
+		 * NOTE the bizarre spec of TranslateInputEOL in this case.
+		 * Clearly the eof char had to be read in order to account
+		 * for the stopping, but the value of dstRead does not
+		 * include it.
+		 *
+		 * Also rather bizarre, our caller can only notice an
+		 * EOF condition if we return the value -1 as the number
+		 * of chars read.  This forces us to perform a 2-call
+		 * dance where the first call can read all the chars
+		 * up to the eof char, and the second call is solely
+		 * for consuming the encoded eof char then pointed at
+		 * by src so that we can return that magic -1 value.
+		 * This seems really wasteful, especially since
+		 * the first decoding pass of each call is likely to
+		 * decode many bytes beyond that eof char that's all we
+		 * care about.
+		 */
+
+		if (dstRead == 0) {
+		    /*
+		     * Curious choice in the eof char handling.  We leave
+		     * the eof char in the buffer.  So, no need to compute
+		     * a proper srcRead value.  At this point, there
+		     * are no chars before the eof char in the buffer.
+		     */
+		    Tcl_SetObjLength(objPtr, numBytes);
+		    return -1;
+		}
+
+		{
+		    /*
+		     * There are chars leading the buffer before the eof
+		     * char.  Adjust the dstLimit so we go back and read
+		     * only those and do not encounter the eof char this
+		     * time.
+		     */
+
+		    dstLimit = dstRead - 1 + TCL_UTF_MAX;
+		    statePtr->flags = savedFlags;
+		    statePtr->inputEncodingFlags = savedIEFlags;
+		    statePtr->inputEncodingState = savedState;
+		    continue;
+		}
+	    }
+
 	    /*
-	     * The next char was not a '\n'. Produce a '\r'.
+	     * 2) The other way to read fewer bytes than are decoded
+	     *    is when the final byte is \r and we're in a CRLF
+	     *    translation mode so we cannot decide whether to
+	     *	  record \r or \n yet.
 	     */
 
-	    *dst = '\r';
-	}
-	statePtr->inputEncodingFlags &= ~TCL_ENCODING_START;
-	*offsetPtr += 1;
+	    assert(dst[dstRead] == '\r');
+	    assert(statePtr->inputTranslation == TCL_TRANSLATE_CRLF);
 
-	if (encEndFlagSuppressed) {
-	    statePtr->inputEncodingFlags |= TCL_ENCODING_END;
-	}
-	return 1;
-    }
+	    if (dstWrote > 0) {
+		/*
+		 * There are chars we can read before we hit the bare cr.
+		 * Go back with a smaller dstLimit so we get them in the
+		 * next pass, compute a matching srcRead, and don't end
+		 * up back here in this call.
+		 */
 
-    Tcl_ExternalToUtf(NULL, statePtr->encoding, src, srcLen,
-	    statePtr->inputEncodingFlags, &statePtr->inputEncodingState, dst,
-	    dstNeeded + 1, &srcRead, &dstWrote, &numChars);
+		dstLimit = dstRead - 1 + TCL_UTF_MAX;
+		statePtr->flags = savedFlags;
+		statePtr->inputEncodingFlags = savedIEFlags;
+		statePtr->inputEncodingState = savedState;
+		continue;
+	    }
 
-    if (encEndFlagSuppressed) {
-	statePtr->inputEncodingFlags |= TCL_ENCODING_END;
-    }
+	    assert(dstWrote == 0);
+	    assert(dstRead == 0);
 
-    if (srcRead == 0) {
-	/*
-	 * Not enough bytes in src buffer to make a complete char. Copy the
-	 * bytes to the next buffer to make a new contiguous string, then tell
-	 * the caller to fill the buffer with more bytes.
-	 */
+	    /*
+	     * We decoded only the bare cr, and we cannot read a
+	     * translated char from that alone.  We have to know what's
+	     * next.  So why do we only have the one decoded char?
+	     */
 
-	ChannelBuffer *nextPtr;
+	    if (code != TCL_OK) {
+		char buffer[TCL_UTF_MAX + 1];
+		int read, decoded, count;
+
+		/* 
+		 * Didn't get everything the buffer could offer
+		 */
+
+		statePtr->flags = savedFlags;
+		statePtr->inputEncodingFlags = savedIEFlags;
+		statePtr->inputEncodingState = savedState;
+
+		assert(bufPtr->nextPtr == NULL
+			|| BytesLeft(bufPtr->nextPtr) == 0 || 0 ==
+			(statePtr->inputEncodingFlags & TCL_ENCODING_END));
+
+		Tcl_ExternalToUtf(NULL, encoding, src, srcLen,
+		(statePtr->inputEncodingFlags | TCL_ENCODING_NO_TERMINATE),
+		&statePtr->inputEncodingState, buffer, TCL_UTF_MAX + 1,
+		&read, &decoded, &count);
+
+		if (count == 2) {
+		    if (buffer[1] == '\n') {
+			/* \r\n translate to \n */
+			dst[0] = '\n';
+			bufPtr->nextRemoved += read;
+		    } else {
+			dst[0] = '\r';
+			bufPtr->nextRemoved += srcRead;
+		    }
+
+		    statePtr->inputEncodingFlags &= ~TCL_ENCODING_START;
+
+		    Tcl_SetObjLength(objPtr, numBytes + 1);
+		    return 1;
+		}
+
+	    } else if (statePtr->flags & CHANNEL_EOF) {
 
-	nextPtr = bufPtr->nextPtr;
-	if (nextPtr == NULL) {
-	    if (srcLen > 0) {
 		/*
-		 * There isn't enough data in the buffers to complete the next
-		 * character, so we need to wait for more data before the next
-		 * file event can be delivered. [Bug 478856]
-		 *
-		 * The exception to this is if the input buffer was completely
-		 * empty before we tried to convert its contents. Nothing in,
-		 * nothing out, and no incomplete character data. The
-		 * conversion before the current one was complete.
+		 * The bare \r is the only char and we will never read
+		 * a subsequent char to make the determination.
 		 */
 
-		SetFlag(statePtr, CHANNEL_NEED_MORE_DATA);
+		dst[0] = '\r';
+		bufPtr->nextRemoved = bufPtr->nextAdded;
+		Tcl_SetObjLength(objPtr, numBytes + 1);
+		return 1;
 	    }
-	    return -1;
+
+	    /*
+	     * Revise the dstRead value so that the numChars calc
+	     * below correctly computes zero characters read.
+	     */
+
+	    dstRead = numChars;
+
+	    /* FALL THROUGH - get more data (dstWrote == 0) */
 	}
 
-	/*
-	 * Space is made at the beginning of the buffer to copy the previous
-	 * unused bytes there. Check first if the buffer we are using actually
-	 * has enough space at its beginning for the data we are copying.
-	 * Because if not we will write over the buffer management
-	 * information, especially the 'nextPtr'.
-	 *
-	 * Note that the BUFFER_PADDING (See AllocChannelBuffer) is used to
-	 * prevent exactly this situation. I.e. it should never happen.
-	 * Therefore it is ok to panic should it happen despite the
-	 * precautions.
+	/* 
+	 * The translation transformation can only reduce the number
+	 * of chars when it converts \r\n into \n.  The reduction in
+	 * the number of chars is the difference in bytes read and written.
 	 */
 
-	if (nextPtr->nextRemoved - srcLen < 0) {
-	    Tcl_Panic("Buffer Underflow, BUFFER_PADDING not enough");
-	}
+	numChars -= (dstRead - dstWrote);
 
-	nextPtr->nextRemoved -= srcLen;
-	memcpy(RemovePoint(nextPtr), src, (size_t) srcLen);
-	RecycleBuffer(statePtr, bufPtr, 0);
-	statePtr->inQueueHead = nextPtr;
-	return ReadChars(statePtr, objPtr, charsToRead, offsetPtr, factorPtr);
-    }
+	if (charsToRead > 0 && numChars > charsToRead) {
 
-    dstRead = dstWrote;
-    if (TranslateInputEOL(statePtr, dst, dst, &dstWrote, &dstRead) != 0) {
-	/*
-	 * Hit EOF char. How many bytes of src correspond to where the EOF was
-	 * located in dst? Run the conversion again with an output buffer just
-	 * big enough to hold the data so we can get the correct value for
-	 * srcRead.
-	 */
+	    /* 
+	     * TODO: This cannot happen anymore.
+	     *
+	     * We read more chars than allowed.  Reset limits to
+	     * prevent that and try again.  Don't forget the extra
+	     * padding of TCL_UTF_MAX bytes demanded by the
+	     * Tcl_ExternalToUtf() call!
+	     */
 
-	if (dstWrote == 0) {
-	    return -1;
+	    dstLimit = Tcl_UtfAtIndex(dst, charsToRead) - 1 + TCL_UTF_MAX - dst;
+	    statePtr->flags = savedFlags;
+	    statePtr->inputEncodingFlags = savedIEFlags;
+	    statePtr->inputEncodingState = savedState;
+	    continue;
 	}
-	statePtr->inputEncodingState = oldState;
-	Tcl_ExternalToUtf(NULL, statePtr->encoding, src, srcLen,
-		statePtr->inputEncodingFlags, &statePtr->inputEncodingState,
-		dst, dstRead + TCL_UTF_MAX, &srcRead, &dstWrote, &numChars);
-	TranslateInputEOL(statePtr, dst, dst, &dstWrote, &dstRead);
-    }
 
-    /*
-     * The number of characters that we got may be less than the number that
-     * we started with because "\r\n" sequences may have been turned into just
-     * '\n' in dst.
-     */
+	if (dstWrote == 0) {
+	    ChannelBuffer *nextPtr;
 
-    numChars -= dstRead - dstWrote;
+	    /* We were not able to read any chars. */
 
-    if ((unsigned) numChars > (unsigned) toRead) {
-	/*
-	 * Got too many chars.
-	 */
+	    assert (numChars == 0);
 
-	const char *eof = Tcl_UtfAtIndex(dst, toRead);
+	    /* 
+	     * There is one situation where this is the correct final
+	     * result.  If the src buffer contains only a single \n
+	     * byte, and we are in TCL_TRANSLATE_AUTO mode, and
+	     * when the translation pass was made the INPUT_SAW_CR
+	     * flag was set on the channel.  In that case, the
+	     * correct behavior is to consume that \n and produce the
+	     * empty string.
+	     */
 
-	statePtr->inputEncodingState = oldState;
-	Tcl_ExternalToUtf(NULL, statePtr->encoding, src, srcLen,
-		statePtr->inputEncodingFlags, &statePtr->inputEncodingState,
-		dst, eof - dst + TCL_UTF_MAX, &srcRead, &dstWrote, &numChars);
-	dstRead = dstWrote;
-	TranslateInputEOL(statePtr, dst, dst, &dstWrote, &dstRead);
-	numChars -= (dstRead - dstWrote);
-    }
-    statePtr->inputEncodingFlags &= ~TCL_ENCODING_START;
+	    if (dstRead == 1 && dst[0] == '\n') {
+		assert(statePtr->inputTranslation == TCL_TRANSLATE_AUTO);
+
+		goto consume;
+	    }
+
+	    /* Otherwise, reading zero characters indicates there's
+	     * something incomplete at the end of the src buffer.
+	     * Maybe there were not enough src bytes to decode into
+	     * a char.  Maybe a lone \r could not be translated (crlf
+	     * mode).  Need to combine any unused src bytes we have
+	     * in the first buffer with subsequent bytes to try again.
+	     */
+
+	    nextPtr = bufPtr->nextPtr;
+
+	    if (nextPtr == NULL) {
+		if (srcLen > 0) {
+		    SetFlag(statePtr, CHANNEL_NEED_MORE_DATA);
+		}
+		Tcl_SetObjLength(objPtr, numBytes);
+		return -1;
+	    }
+
+	    /*
+	     * Space is made at the beginning of the buffer to copy the
+	     * previous unused bytes there. Check first if the buffer we
+	     * are using actually has enough space at its beginning for
+	     * the data we are copying.  Because if not we will write over
+	     * the buffer management information, especially the 'nextPtr'.
+	     *
+	     * Note that the BUFFER_PADDING (See AllocChannelBuffer) is
+	     * used to prevent exactly this situation. I.e. it should never
+	     * happen.  Therefore it is ok to panic should it happen despite
+	     * the precautions.
+	     */
+
+	    if (nextPtr->nextRemoved - srcLen < 0) {
+		Tcl_Panic("Buffer Underflow, BUFFER_PADDING not enough");
+	    }
+
+	    nextPtr->nextRemoved -= srcLen;
+	    memcpy(RemovePoint(nextPtr), src, (size_t) srcLen);
+	    RecycleBuffer(statePtr, bufPtr, 0);
+	    statePtr->inQueueHead = nextPtr;
+	    Tcl_SetObjLength(objPtr, numBytes);
+	    return ReadChars(statePtr, objPtr, charsToRead, factorPtr);
+	}
 
-    bufPtr->nextRemoved += srcRead;
-    if (dstWrote > srcRead + 1) {
-	*factorPtr = dstWrote * UTF_EXPANSION_FACTOR / srcRead;
+	statePtr->inputEncodingFlags &= ~TCL_ENCODING_START;
+
+    consume:
+	bufPtr->nextRemoved += srcRead;
+	/*
+	 * If this read contained multibyte characters, revise factorPtr
+	 * so the next read will allocate bigger buffers.
+	 */
+	if (numChars && numChars < srcRead) {
+	    *factorPtr = srcRead * UTF_EXPANSION_FACTOR / numChars;
+	}
+	Tcl_SetObjLength(objPtr, numBytes + dstWrote);
+	return numChars;
     }
-    *offsetPtr += dstWrote;
-    return numChars;
 }
 
 /*
@@ -6259,7 +6331,7 @@ ReadChars(
  *---------------------------------------------------------------------------
  */
 
-static int
+static void 
 TranslateInputEOL(
     ChannelState *statePtr,	/* Channel being read, for EOL translation and
 				 * EOF character. */
@@ -6268,132 +6340,138 @@ TranslateInputEOL(
 				 * characters. */
     const char *srcStart,	/* Source characters. */
     int *dstLenPtr,		/* On entry, the maximum length of output
-				 * buffer in bytes; must be <= *srcLenPtr. On
-				 * exit, the number of bytes actually used in
-				 * output buffer. */
+				 * buffer in bytes. On exit, the number of
+				 * bytes actually used in output buffer. */
     int *srcLenPtr)		/* On entry, the length of source buffer. On
 				 * exit, the number of bytes read from the
 				 * source buffer. */
 {
-    int dstLen, srcLen, inEofChar;
-    const char *eof;
+    const char *eof = NULL;
+    int dstLen = *dstLenPtr;
+    int srcLen = *srcLenPtr;
+    int inEofChar = statePtr->inEofChar;
 
-    dstLen = *dstLenPtr;
+    /*
+     * Depending on the translation mode in use, there's no need
+     * to scan more srcLen bytes at srcStart than can possibly transform
+     * to dstLen bytes.  This keeps the scan for eof char below from
+     * being pointlessly long.
+     */
+
+    switch (statePtr->inputTranslation) {
+    case TCL_TRANSLATE_LF:
+    case TCL_TRANSLATE_CR:
+	if (srcLen > dstLen) {
+	/* In these modes, each src byte become a dst byte. */
+	    srcLen = dstLen;
+	}
+	break;
+    default:
+	/* In other modes, at most 2 src bytes become a dst byte. */
+	if (srcLen > 2 * dstLen) {
+	    srcLen = 2 * dstLen;
+	}
+	break;
+    }
 
-    eof = NULL;
-    inEofChar = statePtr->inEofChar;
     if (inEofChar != '\0') {
 	/*
-	 * Find EOF in translated buffer then compress out the EOL. The source
-	 * buffer may be much longer than the destination buffer - we only
-	 * want to return EOF if the EOF has been copied to the destination
-	 * buffer.
+	 * Make sure we do not read past any logical end of channel input
+	 * created by the presence of the input eof char.
 	 */
 
-	const char *src, *srcMax = srcStart + *srcLenPtr;
-
-	for (src = srcStart; src < srcMax; src++) {
-	    if (*src == inEofChar) {
-		eof = src;
-		srcLen = src - srcStart;
-		if (srcLen < dstLen) {
-		    dstLen = srcLen;
-		}
-		*srcLenPtr = srcLen;
-		break;
-	    }
+	if ((eof = memchr(srcStart, inEofChar, srcLen))) {
+	    srcLen = eof - srcStart;
 	}
     }
+
     switch (statePtr->inputTranslation) {
     case TCL_TRANSLATE_LF:
+    case TCL_TRANSLATE_CR:
 	if (dstStart != srcStart) {
-	    memcpy(dstStart, srcStart, (size_t) dstLen);
+	    memcpy(dstStart, srcStart, (size_t) srcLen);
 	}
-	srcLen = dstLen;
-	break;
-    case TCL_TRANSLATE_CR: {
-	char *dst, *dstEnd;
+	if (statePtr->inputTranslation == TCL_TRANSLATE_CR) {
+	    char *dst = dstStart;
+	    char *dstEnd = dstStart + srcLen;
 
-	if (dstStart != srcStart) {
-	    memcpy(dstStart, srcStart, (size_t) dstLen);
-	}
-	dstEnd = dstStart + dstLen;
-	for (dst = dstStart; dst < dstEnd; dst++) {
-	    if (*dst == '\r') {
-		*dst = '\n';
+	    while ((dst = memchr(dst, '\r', dstEnd - dst))) {
+		*dst++ = '\n';
 	    }
 	}
-	srcLen = dstLen;
+	dstLen = srcLen;
 	break;
-    }
     case TCL_TRANSLATE_CRLF: {
-	char *dst;
-	const char *src, *srcEnd, *srcMax;
-
-	dst = dstStart;
-	src = srcStart;
-	srcEnd = srcStart + dstLen;
-	srcMax = srcStart + *srcLenPtr;
-
-	for ( ; src < srcEnd; ) {
-	    if (*src == '\r') {
-		src++;
-		if (src >= srcMax) {
-		    SetFlag(statePtr, INPUT_NEED_NL);
-		} else if (*src == '\n') {
-		    *dst++ = *src++;
-		} else {
+	const char *crFound, *src = srcStart;
+	char *dst = dstStart;
+	int lesser = (dstLen < srcLen) ? dstLen : srcLen;
+
+	while ((crFound = memchr(src, '\r', lesser))) {
+	    int numBytes = crFound - src;
+	    memmove(dst, src, numBytes);
+
+	    dst += numBytes; dstLen -= numBytes;
+	    src += numBytes; srcLen -= numBytes;
+	    if (srcLen == 1) {
+		/* valid src bytes end in \r */
+		if (eof) {
 		    *dst++ = '\r';
+		    src++; srcLen--;
+		} else {
+		    lesser = 0;
+		    break;
 		}
+	    } else if (src[1] == '\n') {
+		*dst++ = '\n';
+		src += 2; srcLen -= 2;
 	    } else {
-		*dst++ = *src++;
+		*dst++ = '\r';
+		src++; srcLen--;
 	    }
+	    dstLen--;
+	    lesser = (dstLen < srcLen) ? dstLen : srcLen;
 	}
-	srcLen = src - srcStart;
-	dstLen = dst - dstStart;
+	memmove(dst, src, lesser);
+	srcLen = src + lesser - srcStart;
+	dstLen = dst + lesser - dstStart;
 	break;
     }
     case TCL_TRANSLATE_AUTO: {
-	char *dst;
-	const char *src, *srcEnd, *srcMax;
+	const char *crFound, *src = srcStart;
+	char *dst = dstStart;
+	int lesser;
 
-	dst = dstStart;
-	src = srcStart;
-	srcEnd = srcStart + dstLen;
-	srcMax = srcStart + *srcLenPtr;
-
-	if (GotFlag(statePtr, INPUT_SAW_CR) && (src < srcMax)) {
-	    if (*src == '\n') {
-		src++;
-	    }
+	if ((statePtr->flags & INPUT_SAW_CR) && srcLen) {
+	    if (*src == '\n') { src++; srcLen--; }
 	    ResetFlag(statePtr, INPUT_SAW_CR);
 	}
-	for ( ; src < srcEnd; ) {
-	    if (*src == '\r') {
-		src++;
-		if (src >= srcMax) {
-		    SetFlag(statePtr, INPUT_SAW_CR);
-		} else if (*src == '\n') {
-		    if (srcEnd < srcMax) {
-			srcEnd++;
-		    }
-		    src++;
-		}
-		*dst++ = '\n';
-	    } else {
-		*dst++ = *src++;
+	lesser = (dstLen < srcLen) ? dstLen : srcLen;
+	while ((crFound = memchr(src, '\r', lesser))) {
+	    int numBytes = crFound - src;
+	    memmove(dst, src, numBytes);
+
+	    dst[numBytes] = '\n';
+	    dst += numBytes + 1; dstLen -= numBytes + 1;
+	    src += numBytes + 1; srcLen -= numBytes + 1;
+	    if (srcLen == 0) {
+		SetFlag(statePtr, INPUT_SAW_CR);
+	    } else if (*src == '\n') {
+		src++; srcLen--;
 	    }
+	    lesser = (dstLen < srcLen) ? dstLen : srcLen;
 	}
-	srcLen = src - srcStart;
-	dstLen = dst - dstStart;
+	memmove(dst, src, lesser);
+	srcLen = src + lesser - srcStart;
+	dstLen = dst + lesser - dstStart;
 	break;
     }
     default:
-	return 0;
+	Tcl_Panic("unknown input translation %d", statePtr->inputTranslation);
     }
     *dstLenPtr = dstLen;
+    *srcLenPtr = srcLen;
 
-    if ((eof != NULL) && (srcStart + srcLen >= eof)) {
+    if (srcStart + srcLen == eof) {
 	/*
 	 * EOF character was seen in EOL translated range. Leave current file
 	 * position pointing at the EOF character, but don't store the EOF
@@ -6402,12 +6480,8 @@ TranslateInputEOL(
 
 	SetFlag(statePtr, CHANNEL_EOF | CHANNEL_STICKY_EOF);
 	statePtr->inputEncodingFlags |= TCL_ENCODING_END;
-	ResetFlag(statePtr, INPUT_SAW_CR | INPUT_NEED_NL);
-	return 1;
+	ResetFlag(statePtr, CHANNEL_BLOCKED|INPUT_SAW_CR);
     }
-
-    *srcLenPtr = srcLen;
-    return 0;
 }
 
 /*
@@ -6461,16 +6535,15 @@ Tcl_Ungets(
     statePtr->flags = flags;
 
     /*
-     * If we have encountered a sticky EOF, just punt without storing (sticky
-     * EOF is set if we have seen the input eofChar, to prevent reading beyond
-     * the eofChar). Otherwise, clear the EOF flags, and clear the BLOCKED
-     * bit. We want to discover these conditions anew in each operation.
+     * Clear the EOF flags, and clear the BLOCKED bit.
      */
-
-    if (GotFlag(statePtr, CHANNEL_STICKY_EOF)) {
-	goto done;
+ 
+    if (GotFlag(statePtr, CHANNEL_EOF)) {
+	statePtr->inputEncodingFlags |= TCL_ENCODING_START;
     }
-    ResetFlag(statePtr, CHANNEL_BLOCKED | CHANNEL_EOF);
+    ResetFlag(statePtr,
+	    CHANNEL_BLOCKED | CHANNEL_STICKY_EOF | CHANNEL_EOF | INPUT_SAW_CR);
+    statePtr->inputEncodingFlags &= ~TCL_ENCODING_END;
 
     bufPtr = AllocChannelBuffer(len);
     memcpy(InsertPoint(bufPtr), str, (size_t) len);
@@ -6535,14 +6608,6 @@ Tcl_Flush(
 	return -1;
     }
 
-    /*
-     * Force current output buffer to be output also.
-     */
-
-    if ((statePtr->curOutPtr != NULL) && IsBufferReady(statePtr->curOutPtr)) {
-	SetFlag(statePtr, BUFFER_READY);
-    }
-
     result = FlushChannel(NULL, chanPtr, 0);
     if (result != 0) {
 	return TCL_ERROR;
@@ -6593,7 +6658,7 @@ DiscardInputQueued(
      */
 
     if (discardSavedBuffers && statePtr->saveInBufPtr != NULL) {
-	ckfree(statePtr->saveInBufPtr);
+	ReleaseChannelBuffer(statePtr->saveInBufPtr);
 	statePtr->saveInBufPtr = NULL;
     }
 }
@@ -6605,6 +6670,9 @@ DiscardInputQueued(
  *
  *	Reads input data from a device into a channel buffer.
  *
+ *	IMPORTANT!  This routine is only called on a chanPtr argument
+ *	that is the top channel of a stack!
+ *
  * Results:
  *	The return value is the Posix error code if an error occurred while
  *	reading from the file, or 0 otherwise.
@@ -6626,6 +6694,14 @@ GetInput(
     ChannelState *statePtr = chanPtr->state;
 				/* State info for channel */
 
+    /* 
+     * Verify that all callers know better than to call us when
+     * it's recorded that the next char waiting to be read is the
+     * eofchar.
+     */
+
+    assert( !GotFlag(statePtr, CHANNEL_STICKY_EOF) );
+
     /*
      * Prevent reading from a dead channel -- a channel that has been closed
      * but not yet deallocated, which can happen if the exit handler for
@@ -6638,20 +6714,34 @@ GetInput(
     }
 
     /*
+     * WARNING: There was once a comment here claiming that it was
+     * a bad idea to make another call to the inputproc of a channel
+     * driver when EOF has already been detected on the channel.  Through
+     * much of Tcl's history, this warning was then completely negated
+     * by having all (most?) read paths clear the EOF setting before
+     * reaching here.  So we had a guard that was never triggered.
+     *
+     * Don't be tempted to restore the guard.  Even if EOF is set on
+     * the channel, continue through and call the inputproc again.  This
+     * is the way to enable the ability to [read] again beyond the EOF,
+     * which seems a strange thing to do, but for which use cases exist
+     * [Tcl Bug 5adc350683] and which may even be essential for channels
+     * representing things like ttys or other devices where the stream
+     * might take the logical form of a series of 'files' separated by
+     * an EOF condition.
+     */
+
+    /*
      * First check for more buffers in the pushback area of the topmost
      * channel in the stack and use them. They can be the result of a
      * transformation which went away without reading all the information
      * placed in the area when it was stacked.
-     *
-     * Two possibilities for the state: No buffers in it, or a single empty
-     * buffer. In the latter case we can recycle it now.
      */
 
     if (chanPtr->inQueueHead != NULL) {
-	if (statePtr->inQueueHead != NULL) {
-	    RecycleBuffer(statePtr, statePtr->inQueueHead, 0);
-	    statePtr->inQueueHead = NULL;
-	}
+
+	/* TODO: Tests to cover this. */
+	assert(statePtr->inQueueHead == NULL);
 
 	statePtr->inQueueHead = chanPtr->inQueueHead;
 	statePtr->inQueueTail = chanPtr->inQueueTail;
@@ -6672,21 +6762,21 @@ GetInput(
      */
 
     bufPtr = statePtr->inQueueTail;
-    if ((bufPtr != NULL) && !IsBufferFull(bufPtr)) {
-	toRead = SpaceLeft(bufPtr);
-    } else {
+
+    if ((bufPtr == NULL) || IsBufferFull(bufPtr)) {
 	bufPtr = statePtr->saveInBufPtr;
 	statePtr->saveInBufPtr = NULL;
 
 	/*
 	 * Check the actual buffersize against the requested buffersize.
-	 * Buffers which are smaller than requested are squashed. This is done
+	 * Saved buffers of the wrong size are squashed. This is done
 	 * to honor dynamic changes of the buffersize made by the user.
+	 * TODO: Tests to cover this.
 	 */
 
 	if ((bufPtr != NULL)
-		&& (bufPtr->bufLength - BUFFER_PADDING < statePtr->bufSize)) {
-	    ckfree(bufPtr);
+		&& (bufPtr->bufLength - BUFFER_PADDING != statePtr->bufSize)) {
+	    ReleaseChannelBuffer(bufPtr);
 	    bufPtr = NULL;
 	}
 
@@ -6695,21 +6785,8 @@ GetInput(
 	}
 	bufPtr->nextPtr = NULL;
 
-	/*
-	 * SF #427196: Use the actual size of the buffer to determine the
-	 * number of bytes to read from the channel and not the size for new
-	 * buffers. They can be different if the buffersize was changed
-	 * between reads.
-	 *
-	 * Note: This affects performance negatively if the buffersize was
-	 * extended but this small buffer is reused for all subsequent reads.
-	 * The system never uses buffers with the requested bigger size in
-	 * that case. An adjunct patch could try and delete all unused buffers
-	 * it encounters and which are smaller than the formally requested
-	 * buffersize.
-	 */
-
 	toRead = SpaceLeft(bufPtr);
+	assert(toRead == statePtr->bufSize);
 
 	if (statePtr->inQueueTail == NULL) {
 	    statePtr->inQueueHead = bufPtr;
@@ -6717,75 +6794,22 @@ GetInput(
 	    statePtr->inQueueTail->nextPtr = bufPtr;
 	}
 	statePtr->inQueueTail = bufPtr;
+    } else {
+	toRead = SpaceLeft(bufPtr);
     }
 
-    /*
-     * If EOF is set, we should avoid calling the driver because on some
-     * platforms it is impossible to read from a device after EOF.
-     */
-
-    if (GotFlag(statePtr, CHANNEL_EOF)) {
-	return 0;
-    }
-
-#ifdef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-    /*
-     * [Bug 943274]: Better emulation of non-blocking channels for channels
-     * without BlockModeProc, by keeping track of true fileevents generated by
-     * the OS == Data waiting and reading if and only if we are sure to have
-     * data.
-     */
-
-    if (GotFlag(statePtr, CHANNEL_NONBLOCKING) &&
-	    (Tcl_ChannelBlockModeProc(chanPtr->typePtr) == NULL) &&
-	    !GotFlag(statePtr, CHANNEL_HAS_MORE_DATA)) {
-	/*
-	 * Bypass the driver, it would block, as no data is available
-	 */
-
-	nread = -1;
-	result = EWOULDBLOCK;
-    } else
-#endif /* TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING */
-    {
-	nread = ChanRead(chanPtr, InsertPoint(bufPtr), toRead, &result);
-    }
+    PreserveChannelBuffer(bufPtr);
+    nread = ChanRead(chanPtr, InsertPoint(bufPtr), toRead);
 
-    if (nread > 0) {
+    if (nread < 0) {
+	result = Tcl_GetErrno();
+    } else {
+	result = 0;
 	bufPtr->nextAdded += nread;
-
-	/*
-	 * If we get a short read, signal up that we may be BLOCKED. We should
-	 * avoid calling the driver because on some platforms we will block in
-	 * the low level reading code even though the channel is set into
-	 * nonblocking mode.
-	 */
-
-	if (nread < toRead) {
-	    SetFlag(statePtr, CHANNEL_BLOCKED);
-	}
-
-#ifdef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-	if (nread <= toRead) {
-	    /*
-	     * [Bug 943274]: We have read the available data, clear flag.
-	     */
-
-	    ResetFlag(statePtr, CHANNEL_HAS_MORE_DATA);
-	}
-#endif /* TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING */
-    } else if (nread == 0) {
-	SetFlag(statePtr, CHANNEL_EOF);
-	statePtr->inputEncodingFlags |= TCL_ENCODING_END;
-    } else if (nread < 0) {
-	if ((result == EWOULDBLOCK) || (result == EAGAIN)) {
-	    SetFlag(statePtr, CHANNEL_BLOCKED);
-	    result = EAGAIN;
-	}
-	Tcl_SetErrno(result);
-	return result;
     }
-    return 0;
+
+    ReleaseChannelBuffer(bufPtr);
+    return result;
 }
 
 /*
@@ -6889,8 +6913,12 @@ Tcl_Seek(
      * point. Also clear CR related flags.
      */
 
+    if (GotFlag(statePtr, CHANNEL_EOF)) {
+	statePtr->inputEncodingFlags |= TCL_ENCODING_START;
+    }
     ResetFlag(statePtr, CHANNEL_EOF | CHANNEL_STICKY_EOF | CHANNEL_BLOCKED |
 	    INPUT_SAW_CR);
+    statePtr->inputEncodingFlags &= ~TCL_ENCODING_END;
 
     /*
      * If the channel is in asynchronous output mode, switch it back to
@@ -6913,15 +6941,6 @@ Tcl_Seek(
     }
 
     /*
-     * If there is data buffered in statePtr->curOutPtr then mark the channel
-     * as ready to flush before invoking FlushChannel.
-     */
-
-    if ((statePtr->curOutPtr != NULL) && IsBufferReady(statePtr->curOutPtr)) {
-	SetFlag(statePtr, BUFFER_READY);
-    }
-
-    /*
      * If the flush fails we cannot recover the original position. In that
      * case the seek is not attempted because we do not know where the access
      * position is - instead we return the error. FlushChannel has already
@@ -7245,17 +7264,7 @@ CheckChannelErrors(
     }
 
     if (direction == TCL_READABLE) {
-	/*
-	 * If we have not encountered a sticky EOF, clear the EOF bit (sticky
-	 * EOF is set if we have seen the input eofChar, to prevent reading
-	 * beyond the eofChar). Also, always clear the BLOCKED bit. We want to
-	 * discover these conditions anew in each operation.
-	 */
-
-	if (!GotFlag(statePtr, CHANNEL_STICKY_EOF)) {
-	    ResetFlag(statePtr, CHANNEL_EOF);
-	}
-	ResetFlag(statePtr, CHANNEL_BLOCKED | CHANNEL_NEED_MORE_DATA);
+	ResetFlag(statePtr, CHANNEL_NEED_MORE_DATA);
     }
 
     return 0;
@@ -7284,9 +7293,7 @@ Tcl_Eof(
     ChannelState *statePtr = ((Channel *) chan)->state;
 				/* State of real channel structure. */
 
-    return (GotFlag(statePtr, CHANNEL_STICKY_EOF) ||
-	    (GotFlag(statePtr, CHANNEL_EOF) &&
-	    (Tcl_InputBuffered(chan) == 0))) ? 1 : 0;
+    return GotFlag(statePtr, CHANNEL_EOF) ? 1 : 0;
 }
 
 /*
@@ -7471,14 +7478,26 @@ Tcl_SetChannelBufferSize(
     }
 
     statePtr = ((Channel *) chan)->state;
+
+    if (statePtr->bufSize == sz) {
+	return;
+    }
     statePtr->bufSize = sz;
 
-    if (statePtr->outputStage != NULL) {
-	ckfree(statePtr->outputStage);
-	statePtr->outputStage = NULL;
+    /*
+     * If bufsize changes, need to get rid of old utility buffer.
+     */
+
+    if (statePtr->saveInBufPtr != NULL) {
+	RecycleBuffer(statePtr, statePtr->saveInBufPtr, 1);
+	statePtr->saveInBufPtr = NULL;
     }
-    if ((statePtr->encoding != NULL) && GotFlag(statePtr, TCL_WRITABLE)) {
-	statePtr->outputStage = ckalloc(statePtr->bufSize + 2);
+    if ((statePtr->inQueueHead != NULL)
+	    && (statePtr->inQueueHead->nextPtr == NULL)
+	    && IsBufferEmpty(statePtr->inQueueHead)) {
+	RecycleBuffer(statePtr, statePtr->inQueueHead, 1);
+	statePtr->inQueueHead = NULL;
+	statePtr->inQueueTail = NULL;
     }
 }
 
@@ -7914,6 +7933,7 @@ Tcl_SetChannelOption(
 	    return TCL_ERROR;
 	}
 	Tcl_SetChannelBufferSize(chan, newBufferSize);
+	return TCL_OK;
     } else if (HaveOpt(2, "-encoding")) {
 	Tcl_Encoding encoding;
 
@@ -7931,7 +7951,8 @@ Tcl_SetChannelOption(
 	 * iso2022, the terminated escape sequence must write to the buffer.
 	 */
 
-	if ((statePtr->encoding != NULL) && (statePtr->curOutPtr != NULL)
+	if ((statePtr->encoding != NULL)
+		&& !(statePtr->outputEncodingFlags & TCL_ENCODING_START)
 		&& (CheckChannelErrors(statePtr, TCL_WRITABLE) == 0)) {
 	    statePtr->outputEncodingFlags |= TCL_ENCODING_END;
 	    WriteChars(chanPtr, "", 0);
@@ -7944,6 +7965,7 @@ Tcl_SetChannelOption(
 	statePtr->outputEncodingFlags = TCL_ENCODING_START;
 	ResetFlag(statePtr, CHANNEL_NEED_MORE_DATA);
 	UpdateInterest(chanPtr);
+	return TCL_OK;
     } else if (HaveOpt(2, "-eofchar")) {
 	if (Tcl_SplitList(interp, newValue, &argc, &argv) == TCL_ERROR) {
 	    return TCL_ERROR;
@@ -7990,7 +8012,11 @@ Tcl_SetChannelOption(
 	 * ahead'. Ditto for blocked.
 	 */
 
+	if (GotFlag(statePtr, CHANNEL_EOF)) {
+	    statePtr->inputEncodingFlags |= TCL_ENCODING_START;
+	}
 	ResetFlag(statePtr, CHANNEL_EOF|CHANNEL_STICKY_EOF|CHANNEL_BLOCKED);
+	statePtr->inputEncodingFlags &= ~TCL_ENCODING_END;
 	return TCL_OK;
     } else if (HaveOpt(1, "-translation")) {
 	const char *readMode, *writeMode;
@@ -8104,33 +8130,6 @@ Tcl_SetChannelOption(
 	return Tcl_BadChannelOption(interp, optionName, NULL);
     }
 
-    /*
-     * If bufsize changes, need to get rid of old utility buffer.
-     */
-
-    if (statePtr->saveInBufPtr != NULL) {
-	RecycleBuffer(statePtr, statePtr->saveInBufPtr, 1);
-	statePtr->saveInBufPtr = NULL;
-    }
-    if ((statePtr->inQueueHead != NULL)
-	    && (statePtr->inQueueHead->nextPtr == NULL)
-	    && IsBufferEmpty(statePtr->inQueueHead)) {
-	RecycleBuffer(statePtr, statePtr->inQueueHead, 1);
-	statePtr->inQueueHead = NULL;
-	statePtr->inQueueTail = NULL;
-    }
-
-    /*
-     * If encoding or bufsize changes, need to update output staging buffer.
-     */
-
-    if (statePtr->outputStage != NULL) {
-	ckfree(statePtr->outputStage);
-	statePtr->outputStage = NULL;
-    }
-    if ((statePtr->encoding != NULL) && GotFlag(statePtr, TCL_WRITABLE)) {
-	statePtr->outputStage = ckalloc(statePtr->bufSize + 2);
-    }
     return TCL_OK;
 }
 
@@ -8222,21 +8221,6 @@ Tcl_NotifyChannel(
     Channel *upChanPtr;
     const Tcl_ChannelType *upTypePtr;
 
-#ifdef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-    /*
-     * [SF Tcl Bug 943274] For a non-blocking channel without blockmodeproc we
-     * keep track of actual input coming from the OS so that we can do a
-     * credible imitation of non-blocking behaviour.
-     */
-
-    if ((mask & TCL_READABLE) &&
-	    GotFlag(statePtr, CHANNEL_NONBLOCKING) &&
-	    (Tcl_ChannelBlockModeProc(chanPtr->typePtr) == NULL) &&
-	    !GotFlag(statePtr, CHANNEL_TIMER_FEV)) {
-	SetFlag(statePtr, CHANNEL_HAS_MORE_DATA);
-    }
-#endif /* TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING */
-
     /*
      * In contrast to the other API functions this procedure walks towards the
      * top of a stack and not down from it.
@@ -8286,7 +8270,7 @@ Tcl_NotifyChannel(
      * Preserve the channel struct in case the script closes it.
      */
 
-    Tcl_Preserve(channel);
+    TclChannelPreserve((Tcl_Channel)channel);
     Tcl_Preserve(statePtr);
 
     /*
@@ -8296,13 +8280,14 @@ Tcl_NotifyChannel(
      */
 
     if (GotFlag(statePtr, BG_FLUSH_SCHEDULED) && (mask & TCL_WRITABLE)) {
-	FlushChannel(NULL, chanPtr, 1);
-	mask &= ~TCL_WRITABLE;
+	if (0 == FlushChannel(NULL, chanPtr, 1)) {
+	    mask &= ~TCL_WRITABLE;
+	}
     }
 
     /*
      * Add this invocation to the list of recursive invocations of
-     * ChannelHandlerEventProc.
+     * Tcl_NotifyChannel.
      */
 
     nh.nextHandlerPtr = NULL;
@@ -8317,7 +8302,7 @@ Tcl_NotifyChannel(
 
 	if ((chPtr->mask & mask) != 0) {
 	    nh.nextHandlerPtr = chPtr->nextPtr;
-	    chPtr->proc(chPtr->clientData, mask);
+	    chPtr->proc(chPtr->clientData, chPtr->mask & mask);
 	    chPtr = nh.nextHandlerPtr;
 	} else {
 	    chPtr = chPtr->nextPtr;
@@ -8335,7 +8320,7 @@ Tcl_NotifyChannel(
     }
 
     Tcl_Release(statePtr);
-    Tcl_Release(channel);
+    TclChannelRelease(channel);
 
     tsdPtr->nestedHandlerPtr = nh.nestedHandlerPtr;
 }
@@ -8365,6 +8350,11 @@ UpdateInterest(
 				/* State info for channel */
     int mask = statePtr->interestMask;
 
+    if (chanPtr->typePtr == NULL) {
+	/* Do not update interest on a closed channel */
+	return;
+    }
+
     /*
      * If there are flushed buffers waiting to be written, then we need to
      * watch for the channel to become writable.
@@ -8472,29 +8462,8 @@ ChannelTimerProc(
 
 	statePtr->timer = Tcl_CreateTimerHandler(SYNTHETIC_EVENT_TIME,
                 ChannelTimerProc,chanPtr);
-
-#ifdef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-	/*
-	 * Set the TIMER flag to notify the higher levels that the driver
-	 * might have no data for us. We do this only if we are in
-	 * non-blocking mode and the driver has no BlockModeProc because only
-	 * then we really don't know if the driver will block or not. A
-	 * similar test is done in "PeekAhead".
-	 */
-
-	if (GotFlag(statePtr, CHANNEL_NONBLOCKING) &&
-		(Tcl_ChannelBlockModeProc(chanPtr->typePtr) == NULL)) {
-	    SetFlag(statePtr, CHANNEL_TIMER_FEV);
-	}
-#endif /* TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING */
-
 	Tcl_Preserve(statePtr);
 	Tcl_NotifyChannel((Tcl_Channel) chanPtr, TCL_READABLE);
-
-#ifdef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-	ResetFlag(statePtr, CHANNEL_TIMER_FEV);
-#endif /* TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING */
-
 	Tcl_Release(statePtr);
     } else {
 	statePtr->timer = NULL;
@@ -8637,7 +8606,7 @@ Tcl_DeleteChannelHandler(
     }
 
     /*
-     * If ChannelHandlerEventProc is about to process this handler, tell it to
+     * If Tcl_NotifyChannel is about to process this handler, tell it to
      * process the next one instead - we are going to delete *this* one.
      */
 
@@ -8833,7 +8802,7 @@ TclChannelEventScriptInvoker(
      */
 
     Tcl_Preserve(interp);
-    Tcl_Preserve(chanPtr);
+    TclChannelPreserve((Tcl_Channel)chanPtr);
     result = Tcl_EvalObjEx(interp, esPtr->scriptPtr, TCL_EVAL_GLOBAL);
 
     /*
@@ -8850,7 +8819,7 @@ TclChannelEventScriptInvoker(
 	}
 	Tcl_BackgroundException(interp, result);
     }
-    Tcl_Release(chanPtr);
+    TclChannelRelease((Tcl_Channel)chanPtr);
     Tcl_Release(interp);
 }
 
@@ -9025,6 +8994,7 @@ TclCopyChannel(
     int readFlags, writeFlags;
     CopyState *csPtr;
     int nonBlocking = (cmdPtr) ? CHANNEL_NONBLOCKING : 0;
+    int moveBytes;
 
     inStatePtr = inPtr->state;
     outStatePtr = outPtr->state;
@@ -9076,13 +9046,24 @@ TclCopyChannel(
 	    | CHANNEL_UNBUFFERED;
 
     /*
+     * Test for conditions where we know we can just move bytes from input
+     * channel to output channel with no transformation or even examination
+     * of the bytes themselves.
+     */
+
+    moveBytes = inStatePtr->inEofChar == '\0'	/* No eofChar to stop input */
+	    && inStatePtr->inputTranslation == TCL_TRANSLATE_LF
+	    && outStatePtr->outputTranslation == TCL_TRANSLATE_LF
+	    && inStatePtr->encoding == outStatePtr->encoding;
+
+    /*
      * Allocate a new CopyState to maintain info about the current copy in
      * progress. This structure will be deallocated when the copy is
      * completed.
      */
 
-    csPtr = ckalloc(sizeof(CopyState) + inStatePtr->bufSize);
-    csPtr->bufSize = inStatePtr->bufSize;
+    csPtr = ckalloc(sizeof(CopyState) + !moveBytes * inStatePtr->bufSize);
+    csPtr->bufSize = !moveBytes * inStatePtr->bufSize;
     csPtr->readPtr = inPtr;
     csPtr->writePtr = outPtr;
     csPtr->readFlags = readFlags;
@@ -9098,6 +9079,10 @@ TclCopyChannel(
     inStatePtr->csPtrR  = csPtr;
     outStatePtr->csPtrW = csPtr;
 
+    if (moveBytes) {
+	return MoveBytes(csPtr);
+    }
+
     /*
      * Special handling of -size 0 async transfers, so that the -command is
      * still called asynchronously.
@@ -9132,6 +9117,236 @@ TclCopyChannel(
  *----------------------------------------------------------------------
  */
 
+static void
+MBCallback(
+    CopyState *csPtr,
+    Tcl_Obj *errObj)
+{
+    Tcl_Obj *cmdPtr = Tcl_DuplicateObj(csPtr->cmdPtr);
+    Tcl_WideInt total = csPtr->total;
+    Tcl_Interp *interp = csPtr->interp;
+    int code;
+
+    Tcl_IncrRefCount(cmdPtr);
+    StopCopy(csPtr);
+
+    /* TODO: What if cmdPtr is not a list?! */
+
+    Tcl_ListObjAppendElement(NULL, cmdPtr, Tcl_NewWideIntObj(total));
+    if (errObj) {
+	Tcl_ListObjAppendElement(NULL, cmdPtr, errObj);
+    }
+
+    Tcl_Preserve(interp);
+    code = Tcl_EvalObjEx(interp, cmdPtr, TCL_EVAL_GLOBAL);
+    if (code != TCL_OK) {
+	Tcl_BackgroundException(interp, code);
+    }
+    Tcl_Release(interp);
+    TclDecrRefCount(cmdPtr);
+}
+
+static void
+MBError(
+    CopyState *csPtr,
+    int mask,
+    int errorCode)
+{
+    Tcl_Channel inChan = (Tcl_Channel) csPtr->readPtr;
+    Tcl_Channel outChan = (Tcl_Channel) csPtr->writePtr;
+    Tcl_Obj *errObj;
+
+    Tcl_SetErrno(errorCode);
+
+    errObj = Tcl_ObjPrintf( "error %sing \"%s\": %s",
+	    (mask & TCL_READABLE) ? "read" : "writ",
+	    Tcl_GetChannelName((mask & TCL_READABLE) ? inChan : outChan),
+	    Tcl_PosixError(csPtr->interp));
+
+    if (csPtr->cmdPtr) {
+	MBCallback(csPtr, errObj);
+    } else {
+	Tcl_SetObjResult(csPtr->interp, errObj);
+	StopCopy(csPtr);
+    }
+}
+
+static void
+MBEvent(
+    ClientData clientData,
+    int mask)
+{
+    CopyState *csPtr = (CopyState *) clientData;
+    Tcl_Channel inChan = (Tcl_Channel) csPtr->readPtr;
+    Tcl_Channel outChan = (Tcl_Channel) csPtr->writePtr;
+    ChannelState *inStatePtr = csPtr->readPtr->state;
+
+    if (mask & TCL_WRITABLE) {
+	Tcl_DeleteChannelHandler(inChan, MBEvent, csPtr);
+	Tcl_DeleteChannelHandler(outChan, MBEvent, csPtr);
+	switch (MBWrite(csPtr)) {
+	case TCL_OK:
+	    MBCallback(csPtr, NULL);
+	    break;
+	case TCL_CONTINUE:
+	    Tcl_CreateChannelHandler(inChan, TCL_READABLE, MBEvent, csPtr);
+	    break;
+	}
+    } else if (mask & TCL_READABLE) {
+	if (TCL_OK == MBRead(csPtr)) {
+	    /* When at least one full buffer is present, stop reading. */
+	    if (IsBufferFull(inStatePtr->inQueueHead)
+		    || !Tcl_InputBlocked(inChan)) {
+		Tcl_DeleteChannelHandler(inChan, MBEvent, csPtr);
+	    }
+
+	    /* Successful read -- set up to write the bytes we read */
+	    Tcl_CreateChannelHandler(outChan, TCL_WRITABLE, MBEvent, csPtr);
+	}
+    }
+}
+
+static int 
+MBRead(
+    CopyState *csPtr)
+{
+    ChannelState *inStatePtr = csPtr->readPtr->state;
+    ChannelBuffer *bufPtr = inStatePtr->inQueueHead;
+    int code;
+
+    if (bufPtr && BytesLeft(bufPtr) > 0) {
+	return TCL_OK;
+    }
+
+    code = GetInput(inStatePtr->topChanPtr);
+    if (code == 0 || GotFlag(inStatePtr, CHANNEL_BLOCKED)) {
+	return TCL_OK;
+    } else {
+	MBError(csPtr, TCL_READABLE, code);
+	return TCL_ERROR;
+    }
+}
+
+static int 
+MBWrite(
+    CopyState *csPtr)
+{
+    ChannelState *inStatePtr = csPtr->readPtr->state;
+    ChannelState *outStatePtr = csPtr->writePtr->state;
+    ChannelBuffer *bufPtr = inStatePtr->inQueueHead;
+    ChannelBuffer *tail = NULL;
+    int code;
+    Tcl_WideInt inBytes = 0;
+
+    /* Count up number of bytes waiting in the input queue */
+    while (bufPtr) {
+	inBytes += BytesLeft(bufPtr);
+	tail = bufPtr;
+	if (csPtr->toRead != -1 && csPtr->toRead < inBytes) {
+	    /* Queue has enough bytes to complete the copy */
+	    break;
+	}
+	bufPtr = bufPtr->nextPtr;
+    }
+
+    if (bufPtr) {
+	/* Split the overflowing buffer in two */
+	int extra = (int) (inBytes - csPtr->toRead);
+        /* Note that going with int for extra assumes that inBytes is not too
+         * much over toRead to require a wide itself. If that gets violated
+         * then the calculations involving extra must be made wide too.
+         *
+         * Noted with Win32/MSVC debug build treating the warning (possible of
+         * data in int64 to int conversion) as error.
+         */
+
+	bufPtr = AllocChannelBuffer(extra);
+
+	tail->nextAdded -= extra;
+	memcpy(InsertPoint(bufPtr), InsertPoint(tail), extra);
+	bufPtr->nextAdded += extra;
+	bufPtr->nextPtr = tail->nextPtr;
+	tail->nextPtr = NULL;
+	inBytes = csPtr->toRead;
+    }
+
+    /* Update the byte counts */
+    if (csPtr->toRead != -1) {
+	csPtr->toRead -= inBytes;
+    }
+    csPtr->total += inBytes;
+
+    /* Move buffers from input to output channels */
+    if (outStatePtr->outQueueTail) {
+	outStatePtr->outQueueTail->nextPtr = inStatePtr->inQueueHead;
+    } else {
+	outStatePtr->outQueueHead = inStatePtr->inQueueHead;
+    }
+    outStatePtr->outQueueTail = tail;
+    inStatePtr->inQueueHead = bufPtr;
+    if (inStatePtr->inQueueTail == tail) {
+	inStatePtr->inQueueTail = bufPtr;
+    }
+    if (bufPtr == NULL) {
+	inStatePtr->inQueueTail = NULL;
+    }
+
+    code = FlushChannel(csPtr->interp, outStatePtr->topChanPtr, 0);
+    if (code) {
+	MBError(csPtr, TCL_WRITABLE, code);
+	return TCL_ERROR;
+    }
+    if (csPtr->toRead == 0 || GotFlag(inStatePtr, CHANNEL_EOF)) {
+	return TCL_OK;
+    }
+    return TCL_CONTINUE;
+}
+
+static int
+MoveBytes(
+    CopyState *csPtr)		/* State of copy operation. */
+{
+    ChannelState *outStatePtr = csPtr->writePtr->state;
+    ChannelBuffer *bufPtr = outStatePtr->curOutPtr;
+    int errorCode;
+
+    if (bufPtr && BytesLeft(bufPtr)) {
+	/* If we start with unflushed bytes in the destination
+	 * channel, flush them out of the way first. */
+
+	errorCode = FlushChannel(csPtr->interp, outStatePtr->topChanPtr, 0);
+	if (errorCode != 0) {
+	    MBError(csPtr, TCL_WRITABLE, errorCode);
+	    return TCL_ERROR;
+	}
+    }
+
+    if (csPtr->cmdPtr) {
+	Tcl_Channel inChan = (Tcl_Channel) csPtr->readPtr;
+	Tcl_CreateChannelHandler(inChan, TCL_READABLE, MBEvent, csPtr);
+	return TCL_OK;
+    }
+
+    while (1) {
+	int code;
+
+	if (TCL_ERROR == MBRead(csPtr)) {
+	    return TCL_ERROR;
+	}
+	code = MBWrite(csPtr);
+	if (code == TCL_OK) {
+	    Tcl_SetObjResult(csPtr->interp, Tcl_NewWideIntObj(csPtr->total));
+	    StopCopy(csPtr);
+	    return TCL_OK;
+	}
+	if (code == TCL_ERROR) {
+	    return TCL_ERROR;
+	}
+	/* code == TCL_CONTINUE --> continue the loop */
+    }
+    return TCL_OK;	/* Silence compiler warnings */
+}
+
 static int
 CopyData(
     CopyState *csPtr,		/* State of copy operation. */
@@ -9257,6 +9472,10 @@ CopyData(
 			csPtr);
 	    }
 	    if (size == 0) {
+		if (!GotFlag(inStatePtr, CHANNEL_NONBLOCKING)) {
+		    /* We allowed a short read.  Keep trying. */
+		    continue;
+		}
 		if (bufObj != NULL) {
 		    TclDecrRefCount(bufObj);
 		    bufObj = NULL;
@@ -9277,9 +9496,9 @@ CopyData(
 	}
 
 	if (outBinary || sameEncoding) {
-	    sizeb = DoWrite(outStatePtr->topChanPtr, buffer, sizeb);
+	    sizeb = WriteBytes(outStatePtr->topChanPtr, buffer, sizeb);
 	} else {
-	    sizeb = DoWriteChars(outStatePtr->topChanPtr, buffer, sizeb);
+	    sizeb = WriteChars(outStatePtr->topChanPtr, buffer, sizeb);
 	}
 
 	/*
@@ -9434,12 +9653,23 @@ CopyData(
  *
  * DoRead --
  *
- *	Reads a given number of bytes from a channel. No encoding conversions
+ *	Stores up to "bytesToRead" bytes in memory pointed to by "dst".
+ *	These bytes come from reading the channel "chanPtr" and 
+ *	performing the configured translations.  No encoding conversions
  *	are applied to the bytes being read.
  *
  * Results:
- *	The number of characters read, or -1 on error. Use Tcl_GetErrno() to
- *	retrieve the error code for the error that occurred.
+ *	The number of bytes actually stored (<= bytesToRead),
+ * 	or -1 if there is an error in reading the channel.  Use
+ * 	Tcl_GetErrno() to retrieve the error code for the error
+ *	that occurred.
+ *
+ *	The number of bytes stored can be less than the number
+ * 	requested when
+ *	  - EOF is reached on the channel; or
+ *	  - the channel is non-blocking, and we've read all we can
+ *	    without blocking.
+ *	  - a channel reading error occurs (and we return -1)
  *
  * Side effects:
  *	May cause input to be buffered.
@@ -9450,538 +9680,197 @@ CopyData(
 static int
 DoRead(
     Channel *chanPtr,		/* The channel from which to read. */
-    char *bufPtr,		/* Where to store input read. */
-    int toRead,			/* Maximum number of bytes to read. */
+    char *dst,			/* Where to store input read. */
+    int bytesToRead,		/* Maximum number of bytes to read. */
     int allowShortReads)	/* Allow half-blocking (pipes,sockets) */
 {
     ChannelState *statePtr = chanPtr->state;
-				/* State info for channel */
-    int copied;			/* How many characters were copied into the
-				 * result string? */
-    int copiedNow;		/* How many characters were copied from the
-				 * current input buffer? */
-    int result;			/* Of calling GetInput. */
+    char *p = dst;
 
-    /*
-     * If we have not encountered a sticky EOF, clear the EOF bit. Either way
-     * clear the BLOCKED bit. We want to discover these anew during each
-     * operation.
-     */
-
-    if (!GotFlag(statePtr, CHANNEL_STICKY_EOF)) {
-	ResetFlag(statePtr, CHANNEL_EOF);
-    }
-    ResetFlag(statePtr, CHANNEL_BLOCKED | CHANNEL_NEED_MORE_DATA);
-
-    for (copied = 0; copied < toRead; copied += copiedNow) {
-	copiedNow = CopyAndTranslateBuffer(statePtr, bufPtr + copied,
-		toRead - copied);
-	if (copiedNow == 0) {
-	    if (GotFlag(statePtr, CHANNEL_EOF)) {
-		goto done;
-	    }
-	    if (GotFlag(statePtr, CHANNEL_BLOCKED)) {
-		if (GotFlag(statePtr, CHANNEL_NONBLOCKING)) {
-		    goto done;
-		}
-		ResetFlag(statePtr, CHANNEL_BLOCKED);
-	    }
-	    result = GetInput(chanPtr);
-	    if (result != 0) {
-		if (result != EAGAIN) {
-		    copied = -1;
-		}
-		goto done;
-	    }
-	} else if (allowShortReads) {
-            copied += copiedNow;
-            break;
-        }
-    }
-
-    ResetFlag(statePtr, CHANNEL_BLOCKED);
+    assert (bytesToRead >= 0);
 
     /*
-     * Update the notifier state so we don't block while there is still data
-     * in the buffers.
+     * Early out when we know a read will get the eofchar.
+     *
+     * NOTE: This seems to be a bug.  The special handling for
+     * a zero-char read request ought to come first.  As coded
+     * the EOF due to eofchar has distinguishing behavior from
+     * the EOF due to reported EOF on the underlying device, and
+     * that seems undesirable.  However recent history indicates
+     * that new inconsistent behavior in a patchlevel has problems
+     * too.  Keep on keeping on for now.
      */
 
-  done:
-    UpdateInterest(chanPtr);
-    return copied;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * CopyAndTranslateBuffer --
- *
- *	Copy at most one buffer of input to the result space, doing eol
- *	translations according to mode in effect currently.
- *
- * Results:
- *	Number of bytes stored in the result buffer (as opposed to the number
- *	of bytes read from the channel). May return zero if no input is
- *	available to be translated.
- *
- * Side effects:
- *	Consumes buffered input. May deallocate one buffer.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-CopyAndTranslateBuffer(
-    ChannelState *statePtr,	/* Channel state from which to read input. */
-    char *result,		/* Where to store the copied input. */
-    int space)			/* How many bytes are available in result to
-				 * store the copied input? */
-{
-    ChannelBuffer *bufPtr;	/* The buffer from which to copy bytes. */
-    int bytesInBuffer;		/* How many bytes are available to be copied
-				 * in the current input buffer? */
-    int copied;			/* How many characters were already copied
-				 * into the destination space? */
-    int i;			/* Iterates over the copied input looking for
-				 * the input eofChar. */
-
-    /*
-     * If there is no input at all, return zero. The invariant is that either
-     * there is no buffer in the queue, or if the first buffer is empty, it is
-     * also the last buffer (and thus there is no input in the queue). Note
-     * also that if the buffer is empty, we leave it in the queue.
-     */
+    if (GotFlag(statePtr, CHANNEL_STICKY_EOF)) {
+	SetFlag(statePtr, CHANNEL_EOF);
+	assert( statePtr->inputEncodingFlags & TCL_ENCODING_END );
+	assert( !GotFlag(statePtr, CHANNEL_BLOCKED|INPUT_SAW_CR) );
 
-    if (statePtr->inQueueHead == NULL) {
+	UpdateInterest(chanPtr);
 	return 0;
     }
-    bufPtr = statePtr->inQueueHead;
-    bytesInBuffer = BytesLeft(bufPtr);
 
-    copied = 0;
-    switch (statePtr->inputTranslation) {
-    case TCL_TRANSLATE_LF:
-	if (bytesInBuffer == 0) {
-	    return 0;
+    /* Special handling for zero-char read request. */
+    if (bytesToRead == 0) {
+	if (GotFlag(statePtr, CHANNEL_EOF)) {
+	    statePtr->inputEncodingFlags |= TCL_ENCODING_START;
 	}
+	ResetFlag(statePtr, CHANNEL_BLOCKED|CHANNEL_EOF);
+	statePtr->inputEncodingFlags &= ~TCL_ENCODING_END;
+	UpdateInterest(chanPtr);
+	return 0;
+    }
 
+    TclChannelPreserve((Tcl_Channel)chanPtr);
+    while (bytesToRead) {
 	/*
-	 * Copy the current chunk into the result buffer.
+	 * Each pass through the loop is intended to process up to 
+	 * one channel buffer.
 	 */
 
-	if (bytesInBuffer < space) {
-	    space = bytesInBuffer;
-	}
-	memcpy(result, RemovePoint(bufPtr), (size_t) space);
-	bufPtr->nextRemoved += space;
-	copied = space;
-	break;
-    case TCL_TRANSLATE_CR: {
-	char *end;
-
-	if (bytesInBuffer == 0) {
-	    return 0;
-	}
+	int bytesRead, bytesWritten;
+	ChannelBuffer *bufPtr = statePtr->inQueueHead;
 
 	/*
-	 * Copy the current chunk into the result buffer, then replace all \r
-	 * with \n.
+	 * Don't read more data if we have what we need. 
 	 */
 
-	if (bytesInBuffer < space) {
-	    space = bytesInBuffer;
-	}
-	memcpy(result, RemovePoint(bufPtr), (size_t) space);
-	bufPtr->nextRemoved += space;
-	copied = space;
+	while (!bufPtr ||			/* We got no buffer!   OR */
+		(!IsBufferFull(bufPtr) && 	/* Our buffer has room AND */
+		(BytesLeft(bufPtr) < bytesToRead) ) ) {
+						/* Not enough bytes in it 
+						 * yet to fill the dst */
+	    int code;
 
-	for (end = result + copied; result < end; result++) {
-	    if (*result == '\r') {
-		*result = '\n';
-	    }
-	}
-	break;
-    }
-    case TCL_TRANSLATE_CRLF: {
-	char *src, *end, *dst;
-	int curByte;
+	moreData:
+	    code = GetInput(chanPtr);
+	    bufPtr = statePtr->inQueueHead;
 
-	/*
-	 * If there is a held-back "\r" at EOF, produce it now.
-	 */
+	    assert (bufPtr != NULL);
 
-	if (bytesInBuffer == 0) {
-	    if ((statePtr->flags & (INPUT_SAW_CR | CHANNEL_EOF)) ==
-		    (INPUT_SAW_CR | CHANNEL_EOF)) {
-		result[0] = '\r';
-		ResetFlag(statePtr, INPUT_SAW_CR);
-		return 1;
+	    if (GotFlag(statePtr, CHANNEL_EOF|CHANNEL_BLOCKED)) {
+		/* Further reads cannot do any more */
+		break;
 	    }
-	    return 0;
-	}
-
-	/*
-	 * Copy the current chunk and replace "\r\n" with "\n" (but not
-	 * standalone "\r"!).
-	 */
-
-	if (bytesInBuffer < space) {
-	    space = bytesInBuffer;
-	}
-	memcpy(result, RemovePoint(bufPtr), (size_t) space);
-	bufPtr->nextRemoved += space;
-	copied = space;
 
-	end = result + copied;
-	dst = result;
-	for (src = result; src < end; src++) {
-	    curByte = *src;
-	    if (curByte == '\n') {
-		ResetFlag(statePtr, INPUT_SAW_CR);
-	    } else if (GotFlag(statePtr, INPUT_SAW_CR)) {
-		ResetFlag(statePtr, INPUT_SAW_CR);
-		*dst = '\r';
-		dst++;
-	    }
-	    if (curByte == '\r') {
-		SetFlag(statePtr, INPUT_SAW_CR);
-	    } else {
-		*dst = (char) curByte;
-		dst++;
+	    if (code) {
+		/* Read error */
+		UpdateInterest(chanPtr);
+		TclChannelRelease((Tcl_Channel)chanPtr);
+		return -1;
 	    }
-	}
-	copied = dst - result;
-	break;
-    }
-    case TCL_TRANSLATE_AUTO: {
-	char *src, *end, *dst;
-	int curByte;
 
-	if (bytesInBuffer == 0) {
-	    return 0;
+	    assert (IsBufferFull(bufPtr));
 	}
 
-	/*
-	 * Loop over the current buffer, converting "\r" and "\r\n" to "\n".
-	 */
+	assert (bufPtr != NULL);
 
-	if (bytesInBuffer < space) {
-	    space = bytesInBuffer;
-	}
-	memcpy(result, RemovePoint(bufPtr), (size_t) space);
-	bufPtr->nextRemoved += space;
-	copied = space;
+	bytesRead = BytesLeft(bufPtr);
+	bytesWritten = bytesToRead;
 
-	end = result + copied;
-	dst = result;
-	for (src = result; src < end; src++) {
-	    curByte = *src;
-	    if (curByte == '\r') {
-		SetFlag(statePtr, INPUT_SAW_CR);
-		*dst = '\n';
-		dst++;
-	    } else {
-		if ((curByte != '\n') || !GotFlag(statePtr, INPUT_SAW_CR)) {
-		    *dst = (char) curByte;
-		    dst++;
-		}
-		ResetFlag(statePtr, INPUT_SAW_CR);
-	    }
-	}
-	copied = dst - result;
-	break;
-    }
-    default:
-	Tcl_Panic("unknown eol translation mode");
-    }
+	TranslateInputEOL(statePtr, p, RemovePoint(bufPtr),
+		&bytesWritten, &bytesRead);
+	bufPtr->nextRemoved += bytesRead;
+	p += bytesWritten;
+	bytesToRead -= bytesWritten;
 
-    /*
-     * If an in-stream EOF character is set for this channel, check that the
-     * input we copied so far does not contain the EOF char. If it does, copy
-     * only up to and excluding that character.
-     */
-
-    if (statePtr->inEofChar != 0) {
-	for (i = 0; i < copied; i++) {
-	    if (result[i] == (char) statePtr->inEofChar) {
-		/*
-		 * Set sticky EOF so that no further input is presented to the
-		 * caller.
-		 */
+	if (!IsBufferEmpty(bufPtr)) {
+	    /*
+	     * Buffer is not empty.  How can that be?
+	     *
+	     * 0) We stopped early because we got all the bytes
+	     *    we were seeking.  That's fine.
+	     */
 
-		SetFlag(statePtr, CHANNEL_EOF | CHANNEL_STICKY_EOF);
-		statePtr->inputEncodingFlags |= TCL_ENCODING_END;
-		copied = i;
+	    if (bytesToRead == 0) {
+		UpdateInterest(chanPtr);
 		break;
 	    }
-	}
-    }
-
-    /*
-     * If the current buffer is empty recycle it.
-     */
-
-    if (IsBufferEmpty(bufPtr)) {
-	statePtr->inQueueHead = bufPtr->nextPtr;
-	if (statePtr->inQueueHead == NULL) {
-	    statePtr->inQueueTail = NULL;
-	}
-	RecycleBuffer(statePtr, bufPtr, 0);
-    }
-
-    /*
-     * Return the number of characters copied into the result buffer. This may
-     * be different from the number of bytes consumed, because of EOL
-     * translations.
-     */
-
-    return copied;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * CopyBuffer --
- *
- *	Copy at most one buffer of input to the result space.
- *
- * Results:
- *	Number of bytes stored in the result buffer. May return zero if no
- *	input is available.
- *
- * Side effects:
- *	Consumes buffered input. May deallocate one buffer.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-CopyBuffer(
-    Channel *chanPtr,		/* Channel from which to read input. */
-    char *result,		/* Where to store the copied input. */
-    int space)			/* How many bytes are available in result to
-				 * store the copied input? */
-{
-    ChannelBuffer *bufPtr;	/* The buffer from which to copy bytes. */
-    int bytesInBuffer;		/* How many bytes are available to be copied
-				 * in the current input buffer? */
-    int copied;			/* How many characters were already copied
-				 * into the destination space? */
-
-    /*
-     * If there is no input at all, return zero. The invariant is that either
-     * there is no buffer in the queue, or if the first buffer is empty, it is
-     * also the last buffer (and thus there is no input in the queue). Note
-     * also that if the buffer is empty, we don't leave it in the queue, but
-     * recycle it.
-     */
-
-    if (chanPtr->inQueueHead == NULL) {
-	return 0;
-    }
-    bufPtr = chanPtr->inQueueHead;
-    bytesInBuffer = BytesLeft(bufPtr);
-
-    copied = 0;
 
-    if (bytesInBuffer == 0) {
-	RecycleBuffer(chanPtr->state, bufPtr, 0);
-	chanPtr->inQueueHead = NULL;
-	chanPtr->inQueueTail = NULL;
-	return 0;
-    }
-
-    /*
-     * Copy the current chunk into the result buffer.
-     */
-
-    if (bytesInBuffer < space) {
-	space = bytesInBuffer;
-    }
-
-    memcpy(result, RemovePoint(bufPtr), (size_t) space);
-    bufPtr->nextRemoved += space;
-    copied = space;
-
-    /*
-     * We don't care about in-stream EOF characters here as the data read here
-     * may still flow through one or more transformations, i.e. is not in its
-     * final state yet.
-     */
-
-    /*
-     * If the current buffer is empty recycle it.
-     */
-
-    if (IsBufferEmpty(bufPtr)) {
-	chanPtr->inQueueHead = bufPtr->nextPtr;
-	if (chanPtr->inQueueHead == NULL) {
-	    chanPtr->inQueueTail = NULL;
-	}
-	RecycleBuffer(chanPtr->state, bufPtr, 0);
-    }
+	    /*
+	     * 1) We're @EOF because we saw eof char.
+	     */
 
-    /*
-     * Return the number of characters copied into the result buffer.
-     */
+	    if (GotFlag(statePtr, CHANNEL_STICKY_EOF)) {
+		UpdateInterest(chanPtr);
+		break;
+	    }
 
-    return copied;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * DoWrite --
- *
- *	Puts a sequence of characters into an output buffer, may queue the
- *	buffer for output if it gets full, and also remembers whether the
- *	current buffer is ready e.g. if it contains a newline and we are in
- *	line buffering mode.
- *
- * Results:
- *	The number of bytes written or -1 in case of error. If -1,
- *	Tcl_GetErrno will return the error code.
- *
- * Side effects:
- *	May buffer up output and may cause output to be produced on the
- *	channel.
- *
- *----------------------------------------------------------------------
- */
+	    /*
+	     * 2) The buffer holds a \r while in CRLF translation,
+	     *    followed by the end of the buffer.
+	     */
 
-static int
-DoWrite(
-    Channel *chanPtr,		/* The channel to buffer output for. */
-    const char *src,		/* Data to write. */
-    int srcLen)			/* Number of bytes to write. */
-{
-    ChannelState *statePtr = chanPtr->state;
-				/* State info for channel */
-    ChannelBuffer *outBufPtr;	/* Current output buffer. */
-    int foundNewline;		/* Did we find a newline in output? */
-    char *dPtr;
-    const char *sPtr;		/* Search variables for newline. */
-    int crsent;			/* In CRLF eol translation mode, remember the
-				 * fact that a CR was output to the channel
-				 * without its following NL. */
-    int i;			/* Loop index for newline search. */
-    int destCopied;		/* How many bytes were used in this
-				 * destination buffer to hold the output? */
-    int totalDestCopied;	/* How many bytes total were copied to the
-				 * channel buffer? */
-    int srcCopied;		/* How many bytes were copied from the source
-				 * string? */
-    char *destPtr;		/* Where in line to copy to? */
+	    assert(statePtr->inputTranslation == TCL_TRANSLATE_CRLF);
+	    assert(RemovePoint(bufPtr)[0] == '\r');
+	    assert(BytesLeft(bufPtr) == 1);
 
-    /*
-     * If we are in network (or windows) translation mode, record the fact
-     * that we have not yet sent a CR to the channel.
-     */
+	    if (bufPtr->nextPtr == NULL) {
+		/* There's no more buffered data.... */
 
-    crsent = 0;
+		if (statePtr->flags & CHANNEL_EOF) {
+		    /* ...and there never will be. */
 
-    /*
-     * Loop filling buffers and flushing them until all output has been
-     * consumed.
-     */
+		    *p++ = '\r';
+		    bytesToRead--;
+		    bufPtr->nextRemoved++;
+		} else if (statePtr->flags & CHANNEL_BLOCKED) {
+		    /* ...and we cannot get more now. */
+		    SetFlag(statePtr, CHANNEL_NEED_MORE_DATA);
+		    UpdateInterest(chanPtr);
+		    break;
+		} else {
+		    /* ... so we need to get some. */
+		    goto moreData;
+		}
+	    }
 
-    srcCopied = 0;
-    totalDestCopied = 0;
+	    if (bufPtr->nextPtr) {
+		/* There's a next buffer.  Shift orphan \r to it. */
 
-    while (srcLen > 0) {
-	/*
-	 * Make sure there is a current output buffer to accept output.
-	 */
+		ChannelBuffer *nextPtr = bufPtr->nextPtr;
 
-	if (statePtr->curOutPtr == NULL) {
-	    statePtr->curOutPtr = AllocChannelBuffer(statePtr->bufSize);
+		nextPtr->nextRemoved -= 1;
+		RemovePoint(nextPtr)[0] = '\r';
+		bufPtr->nextRemoved++;
+	    }
 	}
 
-	outBufPtr = statePtr->curOutPtr;
-
-	destCopied = SpaceLeft(outBufPtr);
-	if (destCopied > srcLen) {
-	    destCopied = srcLen;
+	if (IsBufferEmpty(bufPtr)) {
+	    statePtr->inQueueHead = bufPtr->nextPtr;
+	    if (statePtr->inQueueHead == NULL) {
+		statePtr->inQueueTail = NULL;
+	    }
+	    RecycleBuffer(statePtr, bufPtr, 0);
+	    bufPtr = statePtr->inQueueHead;
 	}
 
-	destPtr = InsertPoint(outBufPtr);
-	switch (statePtr->outputTranslation) {
-	case TCL_TRANSLATE_LF:
-	    srcCopied = destCopied;
-	    memcpy(destPtr, src, (size_t) destCopied);
+	if ((GotFlag(statePtr, CHANNEL_NONBLOCKING) || allowShortReads)
+		&& GotFlag(statePtr, CHANNEL_BLOCKED)) {
 	    break;
-	case TCL_TRANSLATE_CR:
-	    srcCopied = destCopied;
-	    memcpy(destPtr, src, (size_t) destCopied);
-	    for (dPtr = destPtr; dPtr < destPtr + destCopied; dPtr++) {
-		if (*dPtr == '\n') {
-		    *dPtr = '\r';
-		}
-	    }
-	    break;
-	case TCL_TRANSLATE_CRLF:
-	    for (srcCopied = 0, dPtr = destPtr, sPtr = src;
-		    dPtr < destPtr + destCopied;
-		    dPtr++, sPtr++, srcCopied++) {
-		if (*sPtr == '\n') {
-		    if (crsent) {
-			*dPtr = '\n';
-			crsent = 0;
-		    } else {
-			*dPtr = '\r';
-			crsent = 1;
-			sPtr--, srcCopied--;
-		    }
-		} else {
-		    *dPtr = *sPtr;
-		}
-	    }
-	    break;
-	case TCL_TRANSLATE_AUTO:
-	    Tcl_Panic("Tcl_Write: AUTO output translation mode not supported");
-	default:
-	    Tcl_Panic("Tcl_Write: unknown output translation mode");
 	}
 
 	/*
-	 * The current buffer is ready for output if it is full, or if it
-	 * contains a newline and this channel is line-buffered, or if it
-	 * contains any output and this channel is unbuffered.
+	 * When there's no buffered data to read, and we're at EOF,
+	 * escape to the caller.
 	 */
 
-	outBufPtr->nextAdded += destCopied;
-	if (!GotFlag(statePtr, BUFFER_READY)) {
-	    if (IsBufferFull(outBufPtr)) {
-		SetFlag(statePtr, BUFFER_READY);
-	    } else if (GotFlag(statePtr, CHANNEL_LINEBUFFERED)) {
-		for (sPtr = src, i = 0, foundNewline = 0;
-			(i < srcCopied) && (!foundNewline);
-			i++, sPtr++) {
-		    if (*sPtr == '\n') {
-			foundNewline = 1;
-			break;
-		    }
-		}
-		if (foundNewline) {
-		    SetFlag(statePtr, BUFFER_READY);
-		}
-	    } else if (GotFlag(statePtr, CHANNEL_UNBUFFERED)) {
-		SetFlag(statePtr, BUFFER_READY);
-	    }
-	}
-
-	totalDestCopied += srcCopied;
-	src += srcCopied;
-	srcLen -= srcCopied;
-
-	if (GotFlag(statePtr, BUFFER_READY)) {
-	    if (FlushChannel(NULL, chanPtr, 0) != 0) {
-		return -1;
-	    }
+	if (GotFlag(statePtr, CHANNEL_EOF)
+		&& (bufPtr == NULL || IsBufferEmpty(bufPtr))) {
+	    break;
 	}
-    } /* Closes "while" */
+    }
+    if (bytesToRead == 0) {
+	ResetFlag(statePtr, CHANNEL_BLOCKED);
+    }
 
-    return totalDestCopied;
+	assert(!GotFlag(statePtr, CHANNEL_EOF)
+		|| GotFlag(statePtr, CHANNEL_STICKY_EOF)
+		|| Tcl_InputBuffered((Tcl_Channel)chanPtr) == 0);
+	assert( !(GotFlag(statePtr, CHANNEL_EOF|CHANNEL_BLOCKED)
+		== (CHANNEL_EOF|CHANNEL_BLOCKED)) );
+    TclChannelRelease((Tcl_Channel)chanPtr);
+    return (int)(p - dst);
 }
 
 /*
@@ -10032,12 +9921,16 @@ StopCopy(
     CopyState *csPtr)		/* State for bg copy to stop . */
 {
     ChannelState *inStatePtr, *outStatePtr;
+    Tcl_Channel inChan, outChan;
+
     int nonBlocking;
 
     if (!csPtr) {
 	return;
     }
 
+    inChan = (Tcl_Channel) csPtr->readPtr;
+    outChan = (Tcl_Channel) csPtr->writePtr;
     inStatePtr = csPtr->readPtr->state;
     outStatePtr = csPtr->writePtr->state;
 
@@ -10062,12 +9955,12 @@ StopCopy(
 	    csPtr->writeFlags & (CHANNEL_LINEBUFFERED | CHANNEL_UNBUFFERED);
 
     if (csPtr->cmdPtr) {
-	Tcl_DeleteChannelHandler((Tcl_Channel) csPtr->readPtr, CopyEventProc,
-		csPtr);
-	if (csPtr->readPtr != csPtr->writePtr) {
-	    Tcl_DeleteChannelHandler((Tcl_Channel) csPtr->writePtr,
-		    CopyEventProc, csPtr);
+	Tcl_DeleteChannelHandler(inChan, CopyEventProc, csPtr);
+	if (inChan != outChan) {
+	    Tcl_DeleteChannelHandler(outChan, CopyEventProc, csPtr);
 	}
+	Tcl_DeleteChannelHandler(inChan, MBEvent, csPtr);
+	Tcl_DeleteChannelHandler(outChan, MBEvent, csPtr);
 	TclDecrRefCount(csPtr->cmdPtr);
     }
     inStatePtr->csPtrR = NULL;
@@ -10101,12 +9994,15 @@ StackSetBlockMode(
 {
     int result = 0;
     Tcl_DriverBlockModeProc *blockModeProc;
+    ChannelState *statePtr = chanPtr->state;
 
     /*
      * Start at the top of the channel stack
+     * TODO: Examine what can go wrong when blockModeProc calls
+     * disturb the stacking state of the channel.
      */
 
-    chanPtr = chanPtr->state->topChanPtr;
+    chanPtr = statePtr->topChanPtr;
     while (chanPtr != NULL) {
 	blockModeProc = Tcl_ChannelBlockModeProc(chanPtr->typePtr);
 	if (blockModeProc != NULL) {
@@ -11209,12 +11105,11 @@ DupChannelIntRep(
 				 * currently have an internal rep.*/
 {
     ChannelState *statePtr  = GET_CHANNELSTATE(srcPtr);
-    Interp *interpPtr = GET_CHANNELINTERP(srcPtr);
 
     SET_CHANNELSTATE(copyPtr, statePtr);
-    SET_CHANNELINTERP(copyPtr, interpPtr);
+    SET_CHANNELINTERP(copyPtr, GET_CHANNELINTERP(srcPtr));
     Tcl_Preserve(statePtr);
-    copyPtr->typePtr = &tclChannelType;
+    copyPtr->typePtr = srcPtr->typePtr;
 }
 
 /*
@@ -11240,43 +11135,30 @@ SetChannelFromAny(
     register Tcl_Obj *objPtr)	/* The object to convert. */
 {
     ChannelState *statePtr;
-    Interp *interpPtr;
 
     if (interp == NULL) {
 	return TCL_ERROR;
     }
-    if (objPtr->typePtr == &tclChannelType) {
+    if (objPtr->typePtr == &chanObjType) {
 	/*
+	 * TODO: TAINT Flag and dup'd channel values?
 	 * The channel is valid until any call to DetachChannel occurs.
 	 * Ensure consistency checks are done.
 	 */
 
 	statePtr = GET_CHANNELSTATE(objPtr);
-	interpPtr = GET_CHANNELINTERP(objPtr);
 	if (GotFlag(statePtr, CHANNEL_TAINTED|CHANNEL_CLOSED)) {
 	    ResetFlag(statePtr, CHANNEL_TAINTED);
 	    Tcl_Release(statePtr);
-	    UpdateStringOfChannel(objPtr);
 	    objPtr->typePtr = NULL;
-	} else if (interpPtr != (Interp*) interp) {
+	} else if (interp != GET_CHANNELINTERP(objPtr)) {
 	    Tcl_Release(statePtr);
-	    UpdateStringOfChannel(objPtr);
 	    objPtr->typePtr = NULL;
 	}
     }
-    if (objPtr->typePtr != &tclChannelType) {
-	Tcl_Channel chan;
+    if (objPtr->typePtr != &chanObjType) {
+	Tcl_Channel chan = Tcl_GetChannel(interp, TclGetString(objPtr), NULL);
 
-	/*
-	 * We need a valid string with which to check for a valid channel, but
-	 * make sure not to free internal rep until validated. [Bug 1847044]
-	 */
-
-	if ((objPtr->typePtr != NULL) && (objPtr->bytes == NULL)) {
-	    objPtr->typePtr->updateStringProc(objPtr);
-	}
-
-	chan = Tcl_GetChannel(interp, objPtr->bytes, NULL);
 	if (chan == NULL) {
 	    return TCL_ERROR;
 	}
@@ -11286,7 +11168,7 @@ SetChannelFromAny(
 	Tcl_Preserve(statePtr);
 	SET_CHANNELSTATE(objPtr, statePtr);
 	SET_CHANNELINTERP(objPtr, interp);
-	objPtr->typePtr = &tclChannelType;
+	objPtr->typePtr = &chanObjType;
     }
     return TCL_OK;
 }
@@ -11294,45 +11176,6 @@ SetChannelFromAny(
 /*
  *----------------------------------------------------------------------
  *
- * UpdateStringOfChannel --
- *
- *	Update the string representation for an object whose internal
- *	representation is "Channel".
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	The object's string may be set by converting its Unicode represention
- *	to UTF format.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-UpdateStringOfChannel(
-    Tcl_Obj *objPtr)		/* Object with string rep to update. */
-{
-    if (objPtr->bytes == NULL) {
-	ChannelState *statePtr = GET_CHANNELSTATE(objPtr);
-	const char *name = statePtr->channelName;
-
-	if (name) {
-	    size_t len = strlen(name);
-
-	    objPtr->bytes = ckalloc(len + 1);
-	    objPtr->length = len;
-	    memcpy(objPtr->bytes, name, len);
-	} else {
-	    objPtr->bytes = tclEmptyStringRep;
-	    objPtr->length = 0;
-	}
-    }
-}
-
-/*
- *----------------------------------------------------------------------
- *
  * FreeChannelIntRep --
  *
  *	Release statePtr storage.
@@ -11375,20 +11218,14 @@ DumpFlags(
     ChanFlag('n', CHANNEL_NONBLOCKING);
     ChanFlag('l', CHANNEL_LINEBUFFERED);
     ChanFlag('u', CHANNEL_UNBUFFERED);
-    ChanFlag('R', BUFFER_READY);
     ChanFlag('F', BG_FLUSH_SCHEDULED);
     ChanFlag('c', CHANNEL_CLOSED);
     ChanFlag('E', CHANNEL_EOF);
     ChanFlag('S', CHANNEL_STICKY_EOF);
     ChanFlag('B', CHANNEL_BLOCKED);
     ChanFlag('/', INPUT_SAW_CR);
-    ChanFlag('*', INPUT_NEED_NL);
     ChanFlag('D', CHANNEL_DEAD);
     ChanFlag('R', CHANNEL_RAW_MODE);
-#ifdef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-    ChanFlag('T', CHANNEL_TIMER_FEV);
-    ChanFlag('H', CHANNEL_HAS_MORE_DATA);
-#endif /* TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING */
     ChanFlag('x', CHANNEL_INCLOSE);
 
     buf[i] ='\0';
diff --git a/generic/tclIO.h b/generic/tclIO.h
index 1e89878..ca74c3e 100644
--- a/generic/tclIO.h
+++ b/generic/tclIO.h
@@ -30,32 +30,13 @@
 #endif
 
 /*
- * The following structure encapsulates the state for a background channel
- * copy. Note that the data buffer for the copy will be appended to this
- * structure.
- */
-
-typedef struct CopyState {
-    struct Channel *readPtr;	/* Pointer to input channel. */
-    struct Channel *writePtr;	/* Pointer to output channel. */
-    int readFlags;		/* Original read channel flags. */
-    int writeFlags;		/* Original write channel flags. */
-    Tcl_WideInt toRead;		/* Number of bytes to copy, or -1. */
-    Tcl_WideInt total;		/* Total bytes transferred (written). */
-    Tcl_Interp *interp;		/* Interp that started the copy. */
-    Tcl_Obj *cmdPtr;		/* Command to be invoked at completion. */
-    int bufSize;		/* Size of appended buffer. */
-    char buffer[1];		/* Copy buffer, this must be the last
-				 * field. */
-} CopyState;
-
-/*
  * struct ChannelBuffer:
  *
  * Buffers data being sent to or from a channel.
  */
 
 typedef struct ChannelBuffer {
+    int refCount;		/* Current uses count */
     int nextAdded;		/* The next position into which a character
 				 * will be put in the buffer. */
     int nextRemoved;		/* Position of next byte to be removed from
@@ -86,19 +67,6 @@ typedef struct ChannelBuffer {
 #define CHANNELBUFFER_DEFAULT_SIZE	(1024 * 4)
 
 /*
- * Structure to record a close callback. One such record exists for each close
- * callback registered for a channel.
- */
-
-typedef struct CloseCallback {
-    Tcl_CloseProc *proc;	/* The procedure to call. */
-    ClientData clientData;	/* Arbitrary one-word data to pass to the
-				 * callback. */
-    struct CloseCallback *nextPtr;
-				/* For chaining close callbacks. */
-} CloseCallback;
-
-/*
  * The following structure describes the information saved from a call to
  * "fileevent". This is used later when the event being waited for to invoke
  * the saved script in the interpreter designed in this record.
@@ -144,6 +112,8 @@ typedef struct Channel {
 
     ChannelBuffer *inQueueHead;	/* Points at first buffer in input queue. */
     ChannelBuffer *inQueueTail;	/* Points at last buffer in input queue. */
+
+    int refCount;
 } Channel;
 
 /*
@@ -195,7 +165,8 @@ typedef struct ChannelState {
 				 * value is the POSIX error code. */
     int refCount;		/* How many interpreters hold references to
 				 * this IO channel? */
-    CloseCallback *closeCbPtr;	/* Callbacks registered to be called when the
+    struct CloseCallback *closeCbPtr;
+				/* Callbacks registered to be called when the
 				 * channel is closed. */
     char *outputStage;		/* Temporary staging buffer used when
 				 * translating EOL before converting from
@@ -217,8 +188,10 @@ typedef struct ChannelState {
 				 * handlers ("fileevent") on this channel. */
     int bufSize;		/* What size buffers to allocate? */
     Tcl_TimerToken timer;	/* Handle to wakeup timer for this channel. */
-    CopyState *csPtrR;		/* State of background copy for which channel is input, or NULL. */
-    CopyState *csPtrW;		/* State of background copy for which channel is output, or NULL. */
+    struct CopyState *csPtrR;	/* State of background copy for which channel
+				 * is input, or NULL. */
+    struct CopyState *csPtrW;	/* State of background copy for which channel
+				 * is output, or NULL. */
     Channel *topChanPtr;	/* Refers to topmost channel in a stack. Never
 				 * NULL. */
     Channel *bottomChanPtr;	/* Refers to bottommost channel in a stack.
@@ -256,11 +229,6 @@ typedef struct ChannelState {
 					 * flushed after every newline. */
 #define CHANNEL_UNBUFFERED	(1<<5)	/* Output to the channel must always
 					 * be flushed immediately. */
-#define BUFFER_READY		(1<<6)	/* Current output buffer (the
-					 * curOutPtr field in the channel
-					 * structure) should be output as soon
-					 * as possible even though it may not
-					 * be full. */
 #define BG_FLUSH_SCHEDULED	(1<<7)	/* A background flush of the queued
 					 * output buffers has been
 					 * scheduled. */
@@ -282,9 +250,6 @@ typedef struct ChannelState {
 #define INPUT_SAW_CR		(1<<12)	/* Channel is in CRLF eol input
 					 * translation mode and the last byte
 					 * seen was a "\r". */
-#define INPUT_NEED_NL		(1<<15)	/* Saw a '\r' at end of last buffer,
-					 * and there should be a '\n' at
-					 * beginning of next buffer. */
 #define CHANNEL_DEAD		(1<<13)	/* The channel has been closed by the
 					 * exit handler (on exit) but not
 					 * deallocated. When any IO operation
@@ -304,29 +269,6 @@ typedef struct ChannelState {
 					 * changes. */
 #define CHANNEL_RAW_MODE	(1<<16)	/* When set, notes that the Raw API is
 					 * being used. */
-#ifdef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-#define CHANNEL_TIMER_FEV	(1<<17)	/* When set the event we are notified
-					 * by is a fileevent generated by a
-					 * timer. We don't know if the driver
-					 * has more data and should not try to
-					 * read from it. If the system needs
-					 * more than is in the buffers out
-					 * read routines will simulate a short
-					 * read (0 characters read) */
-#define CHANNEL_HAS_MORE_DATA   (1<<18) /* Set by NotifyChannel for a channel
-					 * if and only if the channel is
-					 * configured non-blocking, the driver
-					 * for said channel has no
-					 * blockmodeproc, and data has arrived
-					 * for reading at the OS level). A
-					 * GetInput will pass reading from the
-					 * driver if the channel is
-					 * non-blocking, without blockmode
-					 * proc and the flag has not been set.
-					 * A read will be performed if the
-					 * flag is set. This will reset the
-					 * flag as well. */
-#endif /* TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING */
 
 #define CHANNEL_INCLOSE		(1<<19)	/* Channel is currently being closed.
 					 * Its structures are still live and
@@ -342,89 +284,6 @@ typedef struct ChannelState {
 					 * the channel is allowed. */
 
 /*
- * For each channel handler registered in a call to Tcl_CreateChannelHandler,
- * there is one record of the following type. All of records for a specific
- * channel are chained together in a singly linked list which is stored in the
- * channel structure.
- */
-
-typedef struct ChannelHandler {
-    Channel *chanPtr;		/* The channel structure for this channel. */
-    int mask;			/* Mask of desired events. */
-    Tcl_ChannelProc *proc;	/* Procedure to call in the type of
-				 * Tcl_CreateChannelHandler. */
-    ClientData clientData;	/* Argument to pass to procedure. */
-    struct ChannelHandler *nextPtr;
-    				/* Next one in list of registered handlers. */
-} ChannelHandler;
-
-/*
- * This structure keeps track of the current ChannelHandler being invoked in
- * the current invocation of ChannelHandlerEventProc. There is a potential
- * problem if a ChannelHandler is deleted while it is the current one, since
- * ChannelHandlerEventProc needs to look at the nextPtr field. To handle this
- * problem, structures of the type below indicate the next handler to be
- * processed for any (recursively nested) dispatches in progress. The
- * nextHandlerPtr field is updated if the handler being pointed to is deleted.
- * The nextPtr field is used to chain together all recursive invocations, so
- * that Tcl_DeleteChannelHandler can find all the recursively nested
- * invocations of ChannelHandlerEventProc and compare the handler being
- * deleted against the NEXT handler to be invoked in that invocation; when it
- * finds such a situation, Tcl_DeleteChannelHandler updates the nextHandlerPtr
- * field of the structure to the next handler.
- */
-
-typedef struct NextChannelHandler {
-    ChannelHandler *nextHandlerPtr;
-				/* The next handler to be invoked in this
-				 * invocation. */
-    struct NextChannelHandler *nestedHandlerPtr;
-				/* Next nested invocation of
-				 * ChannelHandlerEventProc. */
-} NextChannelHandler;
-
-/*
- * The following structure describes the event that is added to the Tcl event
- * queue by the channel handler check procedure.
- */
-
-typedef struct ChannelHandlerEvent {
-    Tcl_Event header;		/* Standard header for all events. */
-    Channel *chanPtr;		/* The channel that is ready. */
-    int readyMask;		/* Events that have occurred. */
-} ChannelHandlerEvent;
-
-/*
- * The following structure is used by Tcl_GetsObj() to encapsulates the state
- * for a "gets" operation.
- */
-
-typedef struct GetsState {
-    Tcl_Obj *objPtr;		/* The object to which UTF-8 characters will
-				 * be appended. */
-    char **dstPtr;		/* Pointer into objPtr's string rep where next
-				 * character should be stored. */
-    Tcl_Encoding encoding;	/* The encoding to use to convert raw bytes to
-				 * UTF-8. */
-    ChannelBuffer *bufPtr;	/* The current buffer of raw bytes being
-				 * emptied. */
-    Tcl_EncodingState state;	/* The encoding state just before the last
-				 * external to UTF-8 conversion in
-				 * FilterInputBytes(). */
-    int rawRead;		/* The number of bytes removed from bufPtr in
-				 * the last call to FilterInputBytes(). */
-    int bytesWrote;		/* The number of bytes of UTF-8 data appended
-				 * to objPtr during the last call to
-				 * FilterInputBytes(). */
-    int charsWrote;		/* The corresponding number of UTF-8
-				 * characters appended to objPtr during the
-				 * last call to FilterInputBytes(). */
-    int totalChars;		/* The total number of UTF-8 characters
-				 * appended to objPtr so far, just before the
-				 * last call to FilterInputBytes(). */
-} GetsState;
-
-/*
  * The length of time to wait between synthetic timer events. Must be zero or
  * bad things tend to happen.
  */
diff --git a/generic/tclIOCmd.c b/generic/tclIOCmd.c
index 005713d..834f225 100644
--- a/generic/tclIOCmd.c
+++ b/generic/tclIOCmd.c
@@ -181,6 +181,7 @@ Tcl_PutsObjCmd(
 	return TCL_ERROR;
     }
 
+    TclChannelPreserve(chan);
     result = Tcl_WriteObj(chan, string);
     if (result < 0) {
 	goto error;
@@ -191,6 +192,7 @@ Tcl_PutsObjCmd(
 	    goto error;
 	}
     }
+    TclChannelRelease(chan);
     return TCL_OK;
 
     /*
@@ -205,6 +207,7 @@ Tcl_PutsObjCmd(
 	Tcl_SetObjResult(interp, Tcl_ObjPrintf("error writing \"%s\": %s",
 		TclGetString(chanObjPtr), Tcl_PosixError(interp)));
     }
+    TclChannelRelease(chan);
     return TCL_ERROR;
 }
 
@@ -252,6 +255,7 @@ Tcl_FlushObjCmd(
 	return TCL_ERROR;
     }
 
+    TclChannelPreserve(chan);
     if (Tcl_Flush(chan) != TCL_OK) {
 	/*
 	 * TIP #219.
@@ -265,8 +269,10 @@ Tcl_FlushObjCmd(
 		    "error flushing \"%s\": %s",
 		    TclGetString(chanObjPtr), Tcl_PosixError(interp)));
 	}
+	TclChannelRelease(chan);
 	return TCL_ERROR;
     }
+    TclChannelRelease(chan);
     return TCL_OK;
 }
 
@@ -299,6 +305,7 @@ Tcl_GetsObjCmd(
     int lineLen;		/* Length of line just read. */
     int mode;			/* Mode in which channel is opened. */
     Tcl_Obj *linePtr, *chanObjPtr;
+    int code = TCL_OK;
 
     if ((objc != 2) && (objc != 3)) {
 	Tcl_WrongNumArgs(interp, 1, objv, "channelId ?varName?");
@@ -315,6 +322,7 @@ Tcl_GetsObjCmd(
 	return TCL_ERROR;
     }
 
+    TclChannelPreserve(chan);
     linePtr = Tcl_NewObj();
     lineLen = Tcl_GetsObj(chan, linePtr);
     if (lineLen < 0) {
@@ -333,20 +341,24 @@ Tcl_GetsObjCmd(
 			"error reading \"%s\": %s",
 			TclGetString(chanObjPtr), Tcl_PosixError(interp)));
 	    }
-	    return TCL_ERROR;
+	    code = TCL_ERROR;
+	    goto done;
 	}
 	lineLen = -1;
     }
     if (objc == 3) {
 	if (Tcl_ObjSetVar2(interp, objv[2], NULL, linePtr,
 		TCL_LEAVE_ERR_MSG) == NULL) {
-	    return TCL_ERROR;
+	    code = TCL_ERROR;
+	    goto done;
 	}
 	Tcl_SetObjResult(interp, Tcl_NewIntObj(lineLen));
     } else {
 	Tcl_SetObjResult(interp, linePtr);
     }
-    return TCL_OK;
+  done:
+    TclChannelRelease(chan);
+    return code;
 }
 
 /*
@@ -453,6 +465,7 @@ Tcl_ReadObjCmd(
 
     resultPtr = Tcl_NewObj();
     Tcl_IncrRefCount(resultPtr);
+    TclChannelPreserve(chan);
     charactersRead = Tcl_ReadChars(chan, resultPtr, toRead, 0);
     if (charactersRead < 0) {
 	/*
@@ -467,6 +480,7 @@ Tcl_ReadObjCmd(
 		    "error reading \"%s\": %s",
 		    TclGetString(chanObjPtr), Tcl_PosixError(interp)));
 	}
+	TclChannelRelease(chan);
 	Tcl_DecrRefCount(resultPtr);
 	return TCL_ERROR;
     }
@@ -485,6 +499,7 @@ Tcl_ReadObjCmd(
 	}
     }
     Tcl_SetObjResult(interp, resultPtr);
+    TclChannelRelease(chan);
     Tcl_DecrRefCount(resultPtr);
     return TCL_OK;
 }
@@ -544,6 +559,7 @@ Tcl_SeekObjCmd(
 	mode = modeArray[optionIndex];
     }
 
+    TclChannelPreserve(chan);
     result = Tcl_Seek(chan, offset, mode);
     if (result == Tcl_LongAsWide(-1)) {
 	/*
@@ -558,8 +574,10 @@ Tcl_SeekObjCmd(
 		    "error during seek on \"%s\": %s",
 		    TclGetString(objv[1]), Tcl_PosixError(interp)));
 	}
+	TclChannelRelease(chan);
 	return TCL_ERROR;
     }
+    TclChannelRelease(chan);
     return TCL_OK;
 }
 
@@ -590,6 +608,7 @@ Tcl_TellObjCmd(
 {
     Tcl_Channel chan;		/* The channel to tell on. */
     Tcl_WideInt newLoc;
+    int code;
 
     if (objc != 2) {
 	Tcl_WrongNumArgs(interp, 1, objv, "channelId");
@@ -605,6 +624,7 @@ Tcl_TellObjCmd(
 	return TCL_ERROR;
     }
 
+    TclChannelPreserve(chan);
     newLoc = Tcl_Tell(chan);
 
     /*
@@ -613,7 +633,10 @@ Tcl_TellObjCmd(
      * them into the regular interpreter result.
      */
 
-    if (TclChanCaughtErrorBypass(interp, chan)) {
+
+    code  = TclChanCaughtErrorBypass(interp, chan);
+    TclChannelRelease(chan);
+    if (code) {
 	return TCL_ERROR;
     }
 
@@ -896,7 +919,7 @@ Tcl_ExecObjCmd(
 	if (string[0] != '-') {
 	    break;
 	}
-	if (Tcl_GetIndexFromObj(interp, objv[skip], options, "switch",
+	if (Tcl_GetIndexFromObj(interp, objv[skip], options, "option",
 		TCL_EXACT, &index) != TCL_OK) {
 	    return TCL_ERROR;
 	}
@@ -910,7 +933,7 @@ Tcl_ExecObjCmd(
 	}
     }
     if (objc <= skip) {
-	Tcl_WrongNumArgs(interp, 1, objv, "?-switch ...? arg ?arg ...?");
+	Tcl_WrongNumArgs(interp, 1, objv, "?-option ...? arg ?arg ...?");
 	return TCL_ERROR;
     }
 
@@ -1673,7 +1696,7 @@ Tcl_FcopyObjCmd(
     toRead = -1;
     cmdPtr = NULL;
     for (i = 3; i < objc; i += 2) {
-	if (Tcl_GetIndexFromObj(interp, objv[i], switches, "switch", 0,
+	if (Tcl_GetIndexFromObj(interp, objv[i], switches, "option", 0,
 		&index) != TCL_OK) {
 	    return TCL_ERROR;
 	}
@@ -1952,25 +1975,25 @@ TclInitChanCmd(
      * function at the moment.
      */
     static const EnsembleImplMap initMap[] = {
-	{"blocked",	Tcl_FblockedObjCmd, NULL, NULL, NULL, 0},
-	{"close",	Tcl_CloseObjCmd, NULL, NULL, NULL, 0},
-	{"copy",	Tcl_FcopyObjCmd, NULL, NULL, NULL, 0},
-	{"create",	TclChanCreateObjCmd, NULL, NULL, NULL, 0},		/* TIP #219 */
-	{"eof",		Tcl_EofObjCmd, NULL, NULL, NULL, 0},
-	{"event",	Tcl_FileEventObjCmd, NULL, NULL, NULL, 0},
-	{"flush",	Tcl_FlushObjCmd, NULL, NULL, NULL, 0},
-	{"gets",	Tcl_GetsObjCmd, NULL, NULL, NULL, 0},
-	{"names",	TclChannelNamesCmd, NULL, NULL, NULL, 0},
-	{"pending",	ChanPendingObjCmd, NULL, NULL, NULL, 0},		/* TIP #287 */
-	{"pop",		TclChanPopObjCmd, NULL, NULL, NULL, 0},		/* TIP #230 */
-	{"postevent",	TclChanPostEventObjCmd, NULL, NULL, NULL, 0},	/* TIP #219 */
-	{"push",	TclChanPushObjCmd, NULL, NULL, NULL, 0},		/* TIP #230 */
-	{"puts",	Tcl_PutsObjCmd, NULL, NULL, NULL, 0},
-	{"read",	Tcl_ReadObjCmd, NULL, NULL, NULL, 0},
-	{"seek",	Tcl_SeekObjCmd, NULL, NULL, NULL, 0},
-	{"pipe",	ChanPipeObjCmd, NULL, NULL, NULL, 0},		/* TIP #304 */
-	{"tell",	Tcl_TellObjCmd, NULL, NULL, NULL, 0},
-	{"truncate",	ChanTruncateObjCmd, NULL, NULL, NULL, 0},		/* TIP #208 */
+	{"blocked",	Tcl_FblockedObjCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"close",	Tcl_CloseObjCmd,	TclCompileBasic1Or2ArgCmd, NULL, NULL, 0},
+	{"copy",	Tcl_FcopyObjCmd,	NULL, NULL, NULL, 0},
+	{"create",	TclChanCreateObjCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},		/* TIP #219 */
+	{"eof",		Tcl_EofObjCmd,		TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"event",	Tcl_FileEventObjCmd,	TclCompileBasic2Or3ArgCmd, NULL, NULL, 0},
+	{"flush",	Tcl_FlushObjCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"gets",	Tcl_GetsObjCmd,		TclCompileBasic1Or2ArgCmd, NULL, NULL, 0},
+	{"names",	TclChannelNamesCmd,	TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+	{"pending",	ChanPendingObjCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},		/* TIP #287 */
+	{"pipe",	ChanPipeObjCmd,		TclCompileBasic0ArgCmd, NULL, NULL, 0},		/* TIP #304 */
+	{"pop",		TclChanPopObjCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},		/* TIP #230 */
+	{"postevent",	TclChanPostEventObjCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},	/* TIP #219 */
+	{"push",	TclChanPushObjCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},		/* TIP #230 */
+	{"puts",	Tcl_PutsObjCmd,		NULL, NULL, NULL, 0},
+	{"read",	Tcl_ReadObjCmd,		NULL, NULL, NULL, 0},
+	{"seek",	Tcl_SeekObjCmd,		TclCompileBasic2Or3ArgCmd, NULL, NULL, 0},
+	{"tell",	Tcl_TellObjCmd,		TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"truncate",	ChanTruncateObjCmd,	TclCompileBasic1Or2ArgCmd, NULL, NULL, 0},		/* TIP #208 */
 	{NULL, NULL, NULL, NULL, NULL, 0}
     };
     static const char *const extras[] = {
diff --git a/generic/tclIOGT.c b/generic/tclIOGT.c
index bfe6a10..58d1a22 100644
--- a/generic/tclIOGT.c
+++ b/generic/tclIOGT.c
@@ -187,6 +187,7 @@ struct TransformChannelData {
     Tcl_Channel self;		/* Our own Channel handle. */
     int readIsFlushed;		/* Flag to note whether in.flushProc was
 				 * called or not. */
+    int eofPending;		/* Flag: EOF seen down, not raised up */
     int flags;			/* Currently CHANNEL_ASYNC or zero. */
     int watchMask;		/* Current watch/event/interest mask. */
     int mode;			/* Mode of parent channel, OR'ed combination
@@ -210,7 +211,27 @@ struct TransformChannelData {
 				 * a transformation of incoming data. Also
 				 * serves as buffer of all data not yet
 				 * consumed by the reader. */
+    int refCount;
 };
+
+static void
+PreserveData(
+    TransformChannelData *dataPtr)
+{
+    dataPtr->refCount++;
+}
+
+static void
+ReleaseData(
+    TransformChannelData *dataPtr)
+{
+    if (--dataPtr->refCount) {
+	return;
+    }
+    ResultClear(&dataPtr->result);
+    Tcl_DecrRefCount(dataPtr->command);
+    ckfree(dataPtr);
+}
 
 /*
  *----------------------------------------------------------------------
@@ -240,6 +261,7 @@ TclChannelTransform(
     Channel *chanPtr;		/* The actual channel. */
     ChannelState *statePtr;	/* State info for channel. */
     int mode;			/* Read/write mode of the channel. */
+    int objc;
     TransformChannelData *dataPtr;
     Tcl_DString ds;
 
@@ -247,6 +269,12 @@ TclChannelTransform(
 	return TCL_ERROR;
     }
 
+    if (TCL_OK != Tcl_ListObjLength(interp, cmdObjPtr, &objc)) {
+	Tcl_SetObjResult(interp,
+		Tcl_NewStringObj("-command value is not a list", -1));
+	return TCL_ERROR;
+    }
+
     chanPtr = (Channel *) chan;
     statePtr = chanPtr->state;
     chanPtr = statePtr->topChanPtr;
@@ -261,16 +289,17 @@ TclChannelTransform(
 
     dataPtr = ckalloc(sizeof(TransformChannelData));
 
+    dataPtr->refCount = 1;
     Tcl_DStringInit(&ds);
     Tcl_GetChannelOption(interp, chan, "-blocking", &ds);
     dataPtr->readIsFlushed = 0;
+    dataPtr->eofPending = 0;
     dataPtr->flags = 0;
     if (ds.string[0] == '0') {
 	dataPtr->flags |= CHANNEL_ASYNC;
     }
     Tcl_DStringFree(&ds);
 
-    dataPtr->self = chan;
     dataPtr->watchMask = 0;
     dataPtr->mode = mode;
     dataPtr->timer = NULL;
@@ -286,19 +315,20 @@ TclChannelTransform(
     if (dataPtr->self == NULL) {
 	Tcl_AppendPrintfToObj(Tcl_GetObjResult(interp),
 		"\nfailed to stack channel \"%s\"", Tcl_GetChannelName(chan));
-	Tcl_DecrRefCount(dataPtr->command);
-	ResultClear(&dataPtr->result);
-	ckfree(dataPtr);
+	ReleaseData(dataPtr);
 	return TCL_ERROR;
     }
+    Tcl_Preserve(dataPtr->self);
 
     /*
      * At last initialize the transformation at the script level.
      */
 
+    PreserveData(dataPtr);
     if ((dataPtr->mode & TCL_WRITABLE) && ExecuteCallback(dataPtr, NULL,
 	    A_CREATE_WRITE, NULL, 0, TRANSMIT_DONT, P_NO_PRESERVE) != TCL_OK){
 	Tcl_UnstackChannel(interp, chan);
+	ReleaseData(dataPtr);
 	return TCL_ERROR;
     }
 
@@ -307,9 +337,11 @@ TclChannelTransform(
 	ExecuteCallback(dataPtr, NULL, A_DELETE_WRITE, NULL, 0, TRANSMIT_DONT,
 		P_NO_PRESERVE);
 	Tcl_UnstackChannel(interp, chan);
+	ReleaseData(dataPtr);
 	return TCL_ERROR;
     }
 
+    ReleaseData(dataPtr);
     return TCL_OK;
 }
 
@@ -350,7 +382,10 @@ ExecuteCallback(
     unsigned char *resBuf;
     Tcl_InterpState state = NULL;
     int res = TCL_OK;
-    Tcl_Obj *command = Tcl_DuplicateObj(dataPtr->command);
+    Tcl_Obj *command = TclListObjCopy(NULL, dataPtr->command);
+    Tcl_Interp *eval = dataPtr->interp;
+
+    Tcl_Preserve(eval);
 
     /*
      * Step 1, create the complete command to execute. Do this by appending
@@ -361,26 +396,18 @@ ExecuteCallback(
      */
 
     if (preserve == P_PRESERVE) {
-	state = Tcl_SaveInterpState(dataPtr->interp, res);
+	state = Tcl_SaveInterpState(eval, res);
     }
 
     Tcl_IncrRefCount(command);
-    res = Tcl_ListObjAppendElement(dataPtr->interp, command,
-	    Tcl_NewStringObj((char *) op, -1));
-    if (res != TCL_OK) {
-	goto cleanup;
-    }
+    Tcl_ListObjAppendElement(NULL, command, Tcl_NewStringObj((char *) op, -1));
 
     /*
      * Use a byte-array to prevent the misinterpretation of binary data coming
      * through as UTF while at the tcl level.
      */
 
-    res = Tcl_ListObjAppendElement(dataPtr->interp, command,
-	    Tcl_NewByteArrayObj(buf, bufLen));
-    if (res != TCL_OK) {
-	goto cleanup;
-    }
+    Tcl_ListObjAppendElement(NULL, command, Tcl_NewByteArrayObj(buf, bufLen));
 
     /*
      * Step 2, execute the command at the global level of the interpreter used
@@ -390,13 +417,14 @@ ExecuteCallback(
      * current interpreter. Don't copy if in preservation mode.
      */
 
-    res = Tcl_EvalObjEx(dataPtr->interp, command, TCL_EVAL_GLOBAL);
+    res = Tcl_EvalObjEx(eval, command, TCL_EVAL_GLOBAL);
     Tcl_DecrRefCount(command);
     command = NULL;
 
-    if ((res != TCL_OK) && (interp != NULL) && (dataPtr->interp != interp)
+    if ((res != TCL_OK) && (interp != NULL) && (eval != interp)
 	    && (preserve == P_NO_PRESERVE)) {
-	Tcl_SetObjResult(interp, Tcl_GetObjResult(dataPtr->interp));
+	Tcl_SetObjResult(interp, Tcl_GetObjResult(eval));
+	Tcl_Release(eval);
 	return res;
     }
 
@@ -411,20 +439,26 @@ ExecuteCallback(
 	break;
 
     case TRANSMIT_DOWN:
-	resObj = Tcl_GetObjResult(dataPtr->interp);
+	if (dataPtr->self == NULL) {
+	    break;
+	}
+	resObj = Tcl_GetObjResult(eval);
 	resBuf = Tcl_GetByteArrayFromObj(resObj, &resLen);
 	Tcl_WriteRaw(Tcl_GetStackedChannel(dataPtr->self), (char *) resBuf,
 		resLen);
 	break;
 
     case TRANSMIT_SELF:
-	resObj = Tcl_GetObjResult(dataPtr->interp);
+	if (dataPtr->self == NULL) {
+	    break;
+	}
+	resObj = Tcl_GetObjResult(eval);
 	resBuf = Tcl_GetByteArrayFromObj(resObj, &resLen);
 	Tcl_WriteRaw(dataPtr->self, (char *) resBuf, resLen);
 	break;
 
     case TRANSMIT_IBUF:
-	resObj = Tcl_GetObjResult(dataPtr->interp);
+	resObj = Tcl_GetObjResult(eval);
 	resBuf = Tcl_GetByteArrayFromObj(resObj, &resLen);
 	ResultAdd(&dataPtr->result, resBuf, resLen);
 	break;
@@ -434,24 +468,16 @@ ExecuteCallback(
 	 * Interpret result as integer number.
 	 */
 
-	resObj = Tcl_GetObjResult(dataPtr->interp);
-	TclGetIntFromObj(dataPtr->interp, resObj, &dataPtr->maxRead);
+	resObj = Tcl_GetObjResult(eval);
+	TclGetIntFromObj(eval, resObj, &dataPtr->maxRead);
 	break;
     }
 
-    Tcl_ResetResult(dataPtr->interp);
-    if (preserve == P_PRESERVE) {
-	(void) Tcl_RestoreInterpState(dataPtr->interp, state);
-    }
-    return res;
-
-  cleanup:
+    Tcl_ResetResult(eval);
     if (preserve == P_PRESERVE) {
-	(void) Tcl_RestoreInterpState(dataPtr->interp, state);
-    }
-    if (command != NULL) {
-	Tcl_DecrRefCount(command);
+	(void) Tcl_RestoreInterpState(eval, state);
     }
+    Tcl_Release(eval);
     return res;
 }
 
@@ -535,6 +561,7 @@ TransformCloseProc(
      * system rely on (f.e. signaling the close to interested parties).
      */
 
+    PreserveData(dataPtr);
     if (dataPtr->mode & TCL_WRITABLE) {
 	ExecuteCallback(dataPtr, interp, A_FLUSH_WRITE, NULL, 0,
 		TRANSMIT_DOWN, P_PRESERVE);
@@ -554,14 +581,15 @@ TransformCloseProc(
 	ExecuteCallback(dataPtr, interp, A_DELETE_READ, NULL, 0,
 		TRANSMIT_DONT, P_PRESERVE);
     }
+    ReleaseData(dataPtr);
 
     /*
      * General cleanup.
      */
 
-    ResultClear(&dataPtr->result);
-    Tcl_DecrRefCount(dataPtr->command);
-    ckfree(dataPtr);
+    Tcl_Release(dataPtr->self);
+    dataPtr->self = NULL;
+    ReleaseData(dataPtr);
     return TCL_OK;
 }
 
@@ -596,9 +624,9 @@ TransformInputProc(
      * Should assert(dataPtr->mode & TCL_READABLE);
      */
 
-    if (toRead == 0) {
+    if (toRead == 0 || dataPtr->self == NULL) {
 	/*
-	 * Catch a no-op.
+	 * Catch a no-op. TODO: Is this a panic()?
 	 */
 	return 0;
     }
@@ -606,6 +634,7 @@ TransformInputProc(
     gotBytes = 0;
     downChan = Tcl_GetStackedChannel(dataPtr->self);
 
+    PreserveData(dataPtr);
     while (toRead > 0) {
 	/*
 	 * Loop until the request is satisfied (or no data is available from
@@ -623,7 +652,7 @@ TransformInputProc(
 	     * break out of the loop and return to the caller.
 	     */
 
-	    return gotBytes;
+	    break;
 	}
 
 	/*
@@ -647,7 +676,18 @@ TransformInputProc(
 	    }
 	} /* else: 'maxRead < 0' == Accept the current value of toRead. */
 	if (toRead <= 0) {
-	    return gotBytes;
+	    break;
+	}
+	if (dataPtr->eofPending) {
+	    /*
+	     * Already saw EOF from downChan; don't ask again.
+	     * NOTE: Could move this up to avoid the last maxRead
+	     * execution.  Believe this would still be correct behavior,
+	     * but the test suite tests the whole command callback 
+	     * sequence, so leave it unchanged for now.
+	     */
+
+	    break;
 	}
 
 	/*
@@ -656,45 +696,35 @@ TransformInputProc(
 
 	read = Tcl_ReadRaw(downChan, buf, toRead);
 	if (read < 0) {
-	    /*
-	     * Report errors to caller. EAGAIN is a special situation. If we
-	     * had some data before we report that instead of the request to
-	     * re-try.
-	     */
+	    if (Tcl_InputBlocked(downChan) && (gotBytes > 0)) {
+		/*
+		 * Zero bytes available from downChan because blocked.
+		 * But nonzero bytes already copied, so total is a
+		 * valid blocked short read. Return to caller.
+		 */
 
-	    if ((Tcl_GetErrno() == EAGAIN) && (gotBytes > 0)) {
-		return gotBytes;
+		break;
 	    }
 
-	    *errorCodePtr = Tcl_GetErrno();
-	    return -1;
-	} else if (read == 0) {
 	    /*
-	     * Check wether we hit on EOF in the underlying channel or not. If
-	     * not differentiate between blocking and non-blocking modes. In
-	     * non-blocking mode we ran temporarily out of data. Signal this
-	     * to the caller via EWOULDBLOCK and error return (-1). In the
-	     * other cases we simply return what we got and let the caller
-	     * wait for more. On the other hand, if we got an EOF we have to
-	     * convert and flush all waiting partial data.
+	     * Either downChan is not blocked (there's a real error).
+	     * or it is and there are no bytes copied yet.  In either
+	     * case we want to pass the "error" along to the caller,
+	     * either to report an error, or to signal to the caller
+	     * that zero bytes are available because blocked.
 	     */
 
-	    if (!Tcl_Eof(downChan)) {
-		if ((gotBytes == 0) && (dataPtr->flags & CHANNEL_ASYNC)) {
-		    *errorCodePtr = EWOULDBLOCK;
-		    return -1;
-		}
-		return gotBytes;
-	    }
-
-	    if (dataPtr->readIsFlushed) {
-		/*
-		 * Already flushed, nothing to do anymore.
-		 */
+	    *errorCodePtr = Tcl_GetErrno();
+	    gotBytes = -1;
+	    break;
+	} else if (read == 0) {
 
-		return gotBytes;
-	    }
+	    /*
+	     * Zero returned from Tcl_ReadRaw() always indicates EOF
+	     * on the down channel.
+	     */
 
+	    dataPtr->eofPending = 1;
 	    dataPtr->readIsFlushed = 1;
 	    ExecuteCallback(dataPtr, NULL, A_FLUSH_READ, NULL, 0,
 		    TRANSMIT_IBUF, P_PRESERVE);
@@ -704,7 +734,7 @@ TransformInputProc(
 		 * We had nothing to flush.
 		 */
 
-		return gotBytes;
+		break;
 	    }
 
 	    continue;		/* at: while (toRead > 0) */
@@ -718,10 +748,15 @@ TransformInputProc(
 	if (ExecuteCallback(dataPtr, NULL, A_READ, UCHARP(buf), read,
 		TRANSMIT_IBUF, P_PRESERVE) != TCL_OK) {
 	    *errorCodePtr = EINVAL;
-	    return -1;
+	    gotBytes = -1;
+	    break;
 	}
     } /* while toRead > 0 */
 
+    if (gotBytes == 0) {
+	dataPtr->eofPending = 0;
+    }
+    ReleaseData(dataPtr);
     return gotBytes;
 }
 
@@ -762,11 +797,13 @@ TransformOutputProc(
 	return 0;
     }
 
+    PreserveData(dataPtr);
     if (ExecuteCallback(dataPtr, NULL, A_WRITE, UCHARP(buf), toWrite,
 	    TRANSMIT_DOWN, P_NO_PRESERVE) != TCL_OK) {
 	*errorCodePtr = EINVAL;
-	return -1;
+	toWrite = -1;
     }
+    ReleaseData(dataPtr);
 
     return toWrite;
 }
@@ -819,6 +856,7 @@ TransformSeekProc(
      * request down, unchanged.
      */
 
+    PreserveData(dataPtr);
     if (dataPtr->mode & TCL_WRITABLE) {
 	ExecuteCallback(dataPtr, NULL, A_FLUSH_WRITE, NULL, 0, TRANSMIT_DOWN,
 		P_NO_PRESERVE);
@@ -829,7 +867,9 @@ TransformSeekProc(
 		P_NO_PRESERVE);
 	ResultClear(&dataPtr->result);
 	dataPtr->readIsFlushed = 0;
+	dataPtr->eofPending = 0;
     }
+    ReleaseData(dataPtr);
 
     return parentSeekProc(Tcl_GetChannelInstanceData(parent), offset, mode,
 	    errorCodePtr);
@@ -890,6 +930,7 @@ TransformWideSeekProc(
      * request down, unchanged.
      */
 
+    PreserveData(dataPtr);
     if (dataPtr->mode & TCL_WRITABLE) {
 	ExecuteCallback(dataPtr, NULL, A_FLUSH_WRITE, NULL, 0, TRANSMIT_DOWN,
 		P_NO_PRESERVE);
@@ -900,7 +941,9 @@ TransformWideSeekProc(
 		P_NO_PRESERVE);
 	ResultClear(&dataPtr->result);
 	dataPtr->readIsFlushed = 0;
+	dataPtr->eofPending = 0;
     }
+    ReleaseData(dataPtr);
 
     /*
      * If we have a wide seek capability, we should stick with that.
@@ -1055,6 +1098,9 @@ TransformWatchProc(
      * unchanged.
      */
 
+    if (dataPtr->self == NULL) {
+	return;
+    }
     downChan = Tcl_GetStackedChannel(dataPtr->self);
 
     Tcl_GetChannelType(downChan)->watchProc(
diff --git a/generic/tclIORChan.c b/generic/tclIORChan.c
index cb0282a..21c766e 100644
--- a/generic/tclIORChan.c
+++ b/generic/tclIORChan.c
@@ -99,31 +99,9 @@ typedef struct {
     Tcl_ThreadId thread;	/* Thread the 'interp' belongs to. == Handler thread */
     Tcl_ThreadId owner;         /* Thread owning the structure.    == Channel thread */
 #endif
-
-    /* See [==] as well.
-     * Storage for the command prefix and the additional words required for
-     * the invocation of methods in the command handler.
-     *
-     * argv [0] ... [.] | [argc-2] [argc-1] | [argc]  [argc+2]
-     *      cmd ... pfx | method   chan     | detail1 detail2
-     *      ~~~~ CT ~~~            ~~ CT ~~
-     *
-     * CT = Belongs to the 'Command handler Thread'.
-     */
-
-    int argc;			/* Number of preallocated words - 2 */
-    Tcl_Obj **argv;		/* Preallocated array for calling the handler.
-				 * args[0] is placeholder for cmd word.
-				 * Followed by the arguments in the prefix,
-				 * plus 4 placeholders for method, channel,
-				 * and at most two varying (method specific)
-				 * words. */
-    int methods;		/* Bitmask of supported methods */
-
-    /*
-     * NOTE (9): Should we have predefined shared literals for the method
-     * names?
-     */
+    Tcl_Obj *cmd;		/* Callback command prefix */
+    Tcl_Obj *methods;		/* Methods to append to command prefix */
+    Tcl_Obj *name;		/* Name of the channel as created */
 
     int mode;			/* Mask of R/W mode */
     int interest;		/* Mask of events the channel is interested
@@ -450,15 +428,15 @@ static ReflectedChannel * NewReflectedChannel(Tcl_Interp *interp,
 			    Tcl_Obj *cmdpfxObj, int mode, Tcl_Obj *handleObj);
 static Tcl_Obj *	NextHandle(void);
 static void		FreeReflectedChannel(ReflectedChannel *rcPtr);
-static void		FreeReflectedChannelArgs(ReflectedChannel *rcPtr);
 static int		InvokeTclMethod(ReflectedChannel *rcPtr,
-			    const char *method, Tcl_Obj *argOneObj,
+			    MethodName method, Tcl_Obj *argOneObj,
 			    Tcl_Obj *argTwoObj, Tcl_Obj **resultObjPtr);
 
 static ReflectedChannelMap *	GetReflectedChannelMap(Tcl_Interp *interp);
 static void		DeleteReflectedChannelMap(ClientData clientData,
 			    Tcl_Interp *interp);
 static int		ErrnoReturn(ReflectedChannel *rcPtr, Tcl_Obj *resObj);
+static void		MarkDead(ReflectedChannel *rcPtr);
 
 /*
  * Global constant strings (messages). ==================
@@ -467,16 +445,14 @@ static int		ErrnoReturn(ReflectedChannel *rcPtr, Tcl_Obj *resObj);
  * list-quoting to keep the words of the message together. See also [x].
  */
 
-static const char *msg_read_unsup = "{read not supported by Tcl driver}";
 static const char *msg_read_toomuch = "{read delivered more than requested}";
-static const char *msg_write_unsup = "{write not supported by Tcl driver}";
 static const char *msg_write_toomuch = "{write wrote more than requested}";
 static const char *msg_write_nothing = "{write wrote nothing}";
 static const char *msg_seek_beforestart = "{Tried to seek before origin}";
 #ifdef TCL_THREADS
 static const char *msg_send_originlost = "{Channel thread lost}";
-static const char *msg_send_dstlost    = "{Owner lost}";
 #endif /* TCL_THREADS */
+static const char *msg_send_dstlost    = "{Owner lost}";
 static const char *msg_dstlost    = "-code 1 -level 0 -errorcode NONE -errorinfo {} -errorline 1 {Owner lost}";
 
 /*
@@ -583,10 +559,6 @@ TclChanCreateObjCmd(
 
     rcId = NextHandle();
     rcPtr = NewReflectedChannel(interp, cmdObj, mode, rcId);
-    chan = Tcl_CreateChannel(&tclRChannelType, TclGetString(rcId), rcPtr,
-	    mode);
-    rcPtr->chan = chan;
-    chanPtr = (Channel *) chan;
 
     /*
      * Invoke 'initialize' and validate that the handler is present and ok.
@@ -600,7 +572,7 @@ TclChanCreateObjCmd(
 
     modeObj = DecodeEventMask(mode);
     /* assert modeObj.refCount == 1 */
-    result = InvokeTclMethod(rcPtr, "initialize", modeObj, NULL, &resObj);
+    result = InvokeTclMethod(rcPtr, METH_INIT, modeObj, NULL, &resObj);
     Tcl_DecrRefCount(modeObj);
 
     if (result != TCL_OK) {
@@ -683,7 +655,11 @@ TclChanCreateObjCmd(
      * Everything is fine now.
      */
 
-    rcPtr->methods = methods;
+    chan = Tcl_CreateChannel(&tclRChannelType, TclGetString(rcId), rcPtr,
+	    mode);
+    rcPtr->chan = chan;
+    TclChannelPreserve(chan);
+    chanPtr = (Channel *) chan;
 
     if ((methods & NULLABLE_METHODS) != NULLABLE_METHODS) {
 	/*
@@ -744,12 +720,10 @@ TclChanCreateObjCmd(
     return TCL_OK;
 
   error:
-    /*
-     * Signal to ReflectClose to not call 'finalize'.
-     */
-
-    rcPtr->methods = 0;
-    Tcl_Close(interp, chan);
+    Tcl_DecrRefCount(rcPtr->name);
+    Tcl_DecrRefCount(rcPtr->methods);
+    Tcl_DecrRefCount(rcPtr->cmd);
+    ckfree((char*) rcPtr);
     return TCL_ERROR;
 
 #undef MODE
@@ -1138,6 +1112,7 @@ ReflectClose(
     ReflectedChannelMap *rcmPtr;/* Map of reflected channels with handlers in
 				 * this interp */
     Tcl_HashEntry *hPtr;	/* Entry in the above map */
+    const Tcl_ChannelType *tctPtr;
 
     if (TclInThreadExit()) {
 	/*
@@ -1175,18 +1150,11 @@ ReflectClose(
 	}
 #endif
 
-        Tcl_EventuallyFree(rcPtr, (Tcl_FreeProc *) FreeReflectedChannel);
-	return EOK;
-    }
-
-    /*
-     * -- No -- ASSERT rcPtr->methods & FLAG(METH_FINAL)
-     *
-     * A cleaned method mask here implies that the channel creation was
-     * aborted, and "finalize" must not be called.
-     */
-
-    if (rcPtr->methods == 0) {
+	tctPtr = ((Channel *)rcPtr->chan)->typePtr;
+	if (tctPtr && tctPtr != &tclRChannelType) {
+	    ckfree((char *)tctPtr);
+	    ((Channel *)rcPtr->chan)->typePtr = NULL;
+	}
         Tcl_EventuallyFree(rcPtr, (Tcl_FreeProc *) FreeReflectedChannel);
 	return EOK;
     }
@@ -1208,14 +1176,12 @@ ReflectClose(
 
         Tcl_DeleteEvents(ReflectEventDelete, rcPtr);
 
-        Tcl_EventuallyFree(rcPtr, (Tcl_FreeProc *) FreeReflectedChannel);
-
 	if (result != TCL_OK) {
 	    PassReceivedErrorInterp(interp, &p);
 	}
     } else {
 #endif
-	result = InvokeTclMethod(rcPtr, "finalize", NULL, NULL, &resObj);
+	result = InvokeTclMethod(rcPtr, METH_FINAL, NULL, NULL, &resObj);
 	if ((result != TCL_OK) && (interp != NULL)) {
 	    Tcl_SetChannelErrorInterp(interp, resObj);
 	}
@@ -1251,12 +1217,14 @@ ReflectClose(
 	if (hPtr) {
 	    Tcl_DeleteHashEntry(hPtr);
 	}
-#endif
-
-        Tcl_EventuallyFree(rcPtr, (Tcl_FreeProc *) FreeReflectedChannel);
-#ifdef TCL_THREADS
     }
 #endif
+    tctPtr = ((Channel *)rcPtr->chan)->typePtr;
+    if (tctPtr && tctPtr != &tclRChannelType) {
+	    ckfree((char *)tctPtr);
+	    ((Channel *)rcPtr->chan)->typePtr = NULL;
+    }
+    Tcl_EventuallyFree(rcPtr, (Tcl_FreeProc *) FreeReflectedChannel);
     return (result == TCL_OK) ? EOK : EINVAL;
 }
 
@@ -1290,18 +1258,6 @@ ReflectInput(
     Tcl_Obj *resObj;		/* Result data for 'read' */
 
     /*
-     * The following check can be done before thread redirection, because we
-     * are reading from an item which is readonly, i.e. will never change
-     * during the lifetime of the channel.
-     */
-
-    if (!(rcPtr->methods & FLAG(METH_READ))) {
-	SetChannelErrorStr(rcPtr->chan, msg_read_unsup);
-	*errorCodePtr = EINVAL;
-	return -1;
-    }
-
-    /*
      * Are we in the correct thread?
      */
 
@@ -1339,7 +1295,7 @@ ReflectInput(
     toReadObj = Tcl_NewIntObj(toRead);
     Tcl_IncrRefCount(toReadObj);
 
-    if (InvokeTclMethod(rcPtr, "read", toReadObj, NULL, &resObj)!=TCL_OK) {
+    if (InvokeTclMethod(rcPtr, METH_READ, toReadObj, NULL, &resObj)!=TCL_OK) {
 	int code = ErrnoReturn(rcPtr, resObj);
 
 	if (code < 0) {
@@ -1405,18 +1361,6 @@ ReflectOutput(
     int written;
 
     /*
-     * The following check can be done before thread redirection, because we
-     * are reading from an item which is readonly, i.e. will never change
-     * during the lifetime of the channel.
-     */
-
-    if (!(rcPtr->methods & FLAG(METH_WRITE))) {
-	SetChannelErrorStr(rcPtr->chan, msg_write_unsup);
-	*errorCodePtr = EINVAL;
-	return -1;
-    }
-
-    /*
      * Are we in the correct thread?
      */
 
@@ -1450,11 +1394,12 @@ ReflectOutput(
     /* ASSERT: rcPtr->mode & TCL_WRITABLE */
 
     Tcl_Preserve(rcPtr);
+    Tcl_Preserve(rcPtr->interp);
 
     bufObj = Tcl_NewByteArrayObj((unsigned char *) buf, toWrite);
     Tcl_IncrRefCount(bufObj);
 
-    if (InvokeTclMethod(rcPtr, "write", bufObj, NULL, &resObj) != TCL_OK) {
+    if (InvokeTclMethod(rcPtr, METH_WRITE, bufObj, NULL, &resObj) != TCL_OK) {
 	int code = ErrnoReturn(rcPtr, resObj);
 
 	if (code < 0) {
@@ -1466,6 +1411,14 @@ ReflectOutput(
         goto invalid;
     }
 
+    if (Tcl_InterpDeleted(rcPtr->interp)) {
+	/*
+	 * The interp was destroyed during InvokeTclMethod().
+	 */
+
+	SetChannelErrorStr(rcPtr->chan, msg_send_dstlost);
+        goto invalid;
+    }
     if (Tcl_GetIntFromObj(rcPtr->interp, resObj, &written) != TCL_OK) {
 	Tcl_SetChannelError(rcPtr->chan, MarshallError(rcPtr->interp));
         goto invalid;
@@ -1495,6 +1448,7 @@ ReflectOutput(
  stop:
     Tcl_DecrRefCount(bufObj);
     Tcl_DecrRefCount(resObj);		/* Remove reference held from invoke */
+    Tcl_Release(rcPtr->interp);
     Tcl_Release(rcPtr);
     return written;
  invalid:
@@ -1568,7 +1522,7 @@ ReflectSeekWide(
     Tcl_IncrRefCount(offObj);
     Tcl_IncrRefCount(baseObj);
 
-    if (InvokeTclMethod(rcPtr, "seek", offObj, baseObj, &resObj) != TCL_OK) {
+    if (InvokeTclMethod(rcPtr, METH_SEEK, offObj, baseObj, &resObj)!=TCL_OK) {
 	Tcl_SetChannelError(rcPtr->chan, resObj);
         goto invalid;
     }
@@ -1639,8 +1593,6 @@ ReflectWatch(
     ReflectedChannel *rcPtr = clientData;
     Tcl_Obj *maskObj;
 
-    /* ASSERT rcPtr->methods & FLAG(METH_WATCH) */
-
     /*
      * We restrict the interest to what the channel can support. IOW there
      * will never be write events for a channel which is not writable.
@@ -1683,7 +1635,7 @@ ReflectWatch(
 
     maskObj = DecodeEventMask(mask);
     /* assert maskObj.refCount == 1 */
-    (void) InvokeTclMethod(rcPtr, "watch", maskObj, NULL, NULL);
+    (void) InvokeTclMethod(rcPtr, METH_WATCH, maskObj, NULL, NULL);
     Tcl_DecrRefCount(maskObj);
 
     Tcl_Release(rcPtr);
@@ -1742,7 +1694,7 @@ ReflectBlock(
 
     Tcl_Preserve(rcPtr);
 
-    if (InvokeTclMethod(rcPtr, "blocking", blockObj, NULL, &resObj)!=TCL_OK) {
+    if (InvokeTclMethod(rcPtr,METH_BLOCKING,blockObj,NULL,&resObj)!=TCL_OK) {
 	Tcl_SetChannelError(rcPtr->chan, resObj);
 	errorNum = EINVAL;
     } else {
@@ -1854,7 +1806,7 @@ ReflectSetOption(
     Tcl_IncrRefCount(optionObj);
     Tcl_IncrRefCount(valueObj);
 
-    result = InvokeTclMethod(rcPtr, "configure",optionObj,valueObj, &resObj);
+    result = InvokeTclMethod(rcPtr, METH_CONFIGURE,optionObj,valueObj, &resObj);
     if (result != TCL_OK) {
 	UnmarshallErrorResult(interp, resObj);
     }
@@ -1899,7 +1851,7 @@ ReflectGetOption(
     Tcl_Obj *resObj;		/* Result data for 'configure' */
     int listc, result = TCL_OK;
     Tcl_Obj **listv;
-    const char *method;
+    MethodName method;
 
     /*
      * Are we in the correct thread?
@@ -1938,14 +1890,14 @@ ReflectGetOption(
 	 * Retrieve all options.
 	 */
 
-	method = "cgetall";
+	method = METH_CGETALL;
 	optionObj = NULL;
     } else {
 	/*
 	 * Retrieve the value of one option.
 	 */
 
-	method = "cget";
+	method = METH_CGET;
 	optionObj = Tcl_NewStringObj(optionName, -1);
         Tcl_IncrRefCount(optionObj);
     }
@@ -2159,16 +2111,13 @@ NewReflectedChannel(
     Tcl_Obj *handleObj)
 {
     ReflectedChannel *rcPtr;
-    int i, listc;
-    Tcl_Obj **listv;
+    MethodName mn = METH_BLOCKING;
 
     rcPtr = ckalloc(sizeof(ReflectedChannel));
 
     /* rcPtr->chan: Assigned by caller. Dummy data here. */
-    /* rcPtr->methods: Assigned by caller. Dummy data here. */
 
     rcPtr->chan = NULL;
-    rcPtr->methods = 0;
     rcPtr->interp = interp;
     rcPtr->dead = 0;
 #ifdef TCL_THREADS
@@ -2177,54 +2126,17 @@ NewReflectedChannel(
     rcPtr->mode = mode;
     rcPtr->interest = 0;		/* Initially no interest registered */
 
-    /*
-     * Method placeholder.
-     */
-
     /* ASSERT: cmdpfxObj is a Tcl List */
-
-    Tcl_ListObjGetElements(interp, cmdpfxObj, &listc, &listv);
-
-    /*
-     * See [==] as well.
-     * Storage for the command prefix and the additional words required for
-     * the invocation of methods in the command handler.
-     *
-     * listv [0] [listc-1] | [listc]  [listc+1] |
-     * argv  [0]   ... [.] | [argc-2] [argc-1]  | [argc]  [argc+2]
-     *       cmd   ... pfx | method   chan      | detail1 detail2
-     */
-
-    rcPtr->argc = listc + 2;
-    rcPtr->argv = ckalloc(sizeof(Tcl_Obj *) * (listc+4));
-
-    /*
-     * Duplicate object references.
-     */
-
-    for (i=0; i<listc ; i++) {
-	Tcl_Obj *word = rcPtr->argv[i] = listv[i];
-
-	Tcl_IncrRefCount(word);
-    }
-
-    i++;				/* Skip placeholder for method */
-
-    /*
-     * [Bug 1667990]: See [x] in FreeReflectedChannel for release
-     */
-
-    rcPtr->argv[i] = handleObj;
-    Tcl_IncrRefCount(handleObj);
-
-    /*
-     * The next two objects are kept empty, varying arguments.
-     */
-
-    /*
-     * Initialization complete.
-     */
-
+    rcPtr->cmd = TclListObjCopy(NULL, cmdpfxObj);
+    Tcl_IncrRefCount(rcPtr->cmd);
+    rcPtr->methods = Tcl_NewListObj(METH_WRITE + 1, NULL);
+    while (mn <= METH_WRITE) {
+	Tcl_ListObjAppendElement(NULL, rcPtr->methods,
+		Tcl_NewStringObj(methodNames[mn++], -1));
+    }
+    Tcl_IncrRefCount(rcPtr->methods);
+    rcPtr->name = handleObj;
+    Tcl_IncrRefCount(rcPtr->name);
     return rcPtr;
 }
 
@@ -2271,45 +2183,21 @@ NextHandle(void)
 }
 
 static void
-FreeReflectedChannelArgs(
-    ReflectedChannel *rcPtr)
-{
-    int i, n = rcPtr->argc - 2;
-
-    if (n < 0) {
-	return;
-    }
-    for (i=0; i<n; i++) {
-	Tcl_DecrRefCount(rcPtr->argv[i]);
-    }
-
-    /*
-     * [Bug 1667990]: See [x] in NewReflectedChannel for lock. n+1 = argc-1.
-     */
-
-    Tcl_DecrRefCount(rcPtr->argv[n+1]);
-
-    rcPtr->argc = 1;
-}
-
-static void
 FreeReflectedChannel(
     ReflectedChannel *rcPtr)
 {
     Channel *chanPtr = (Channel *) rcPtr->chan;
 
-    if (chanPtr->typePtr != &tclRChannelType) {
-	/*
-	 * Delete a cloned ChannelType structure.
-	 */
-
-	ckfree(chanPtr->typePtr);
-	chanPtr->typePtr = NULL;
+    TclChannelRelease((Tcl_Channel)chanPtr);
+    if (rcPtr->name) {
+	Tcl_DecrRefCount(rcPtr->name);
+    }
+    if (rcPtr->methods) {
+	Tcl_DecrRefCount(rcPtr->methods);
+    }
+    if (rcPtr->cmd) {
+	Tcl_DecrRefCount(rcPtr->cmd);
     }
-
-    FreeReflectedChannelArgs(rcPtr);
-
-    ckfree(rcPtr->argv);
     ckfree(rcPtr);
 }
 
@@ -2340,16 +2228,16 @@ FreeReflectedChannel(
 static int
 InvokeTclMethod(
     ReflectedChannel *rcPtr,
-    const char *method,
+    MethodName method,
     Tcl_Obj *argOneObj,		/* NULL'able */
     Tcl_Obj *argTwoObj,		/* NULL'able */
     Tcl_Obj **resultObjPtr)	/* NULL'able */
 {
-    int cmdc;			/* #words in constructed command */
     Tcl_Obj *methObj = NULL;	/* Method name in object form */
     Tcl_InterpState sr;		/* State of handler interp */
     int result;			/* Result code of method invokation */
     Tcl_Obj *resObj = NULL;	/* Result of method invokation. */
+    Tcl_Obj *cmd;
 
     if (rcPtr->dead) {
 	/*
@@ -2372,19 +2260,15 @@ InvokeTclMethod(
     }
 
     /*
-     * NOTE (5): Decide impl. issue: Cache objects with method names? Needs
-     * TSD data as reflections can be created in many different threads.
-     * NO: Caching of command resolutions means storage per channel.
-     */
-
-    /*
-     * Insert method into the pre-allocated area, after the command prefix,
+     * Insert method into the callback command, after the command prefix,
      * before the channel id.
      */
 
-    methObj = Tcl_NewStringObj(method, -1);
-    Tcl_IncrRefCount(methObj);
-    rcPtr->argv[rcPtr->argc - 2] = methObj;
+    cmd = TclListObjCopy(NULL, rcPtr->cmd);
+
+    Tcl_ListObjIndex(NULL, rcPtr->methods, method, &methObj);
+    Tcl_ListObjAppendElement(NULL, cmd, methObj);
+    Tcl_ListObjAppendElement(NULL, cmd, rcPtr->name);
 
     /*
      * Append the additional argument containing method specific details
@@ -2394,13 +2278,10 @@ InvokeTclMethod(
      * The objects will survive the Tcl_EvalObjv without change.
      */
 
-    cmdc = rcPtr->argc;
     if (argOneObj) {
-	rcPtr->argv[cmdc] = argOneObj;
-	cmdc++;
+	Tcl_ListObjAppendElement(NULL, cmd, argOneObj);
 	if (argTwoObj) {
-	    rcPtr->argv[cmdc] = argTwoObj;
-	    cmdc++;
+	    Tcl_ListObjAppendElement(NULL, cmd, argTwoObj);
 	}
     }
 
@@ -2409,9 +2290,10 @@ InvokeTclMethod(
      * existing state intact.
      */
 
+    Tcl_IncrRefCount(cmd);
     sr = Tcl_SaveInterpState(rcPtr->interp, 0 /* Dummy */);
     Tcl_Preserve(rcPtr->interp);
-    result = Tcl_EvalObjv(rcPtr->interp, cmdc, rcPtr->argv, TCL_EVAL_GLOBAL);
+    result = Tcl_EvalObjEx(rcPtr->interp, cmd, TCL_EVAL_GLOBAL);
 
     /*
      * We do not try to extract the result information if the caller has no
@@ -2437,7 +2319,6 @@ InvokeTclMethod(
 	     */
 
 	    if (result != TCL_ERROR) {
-		Tcl_Obj *cmd = Tcl_NewListObj(cmdc, rcPtr->argv);
 		int cmdLen;
 		const char *cmdString = Tcl_GetStringFromObj(cmd, &cmdLen);
 
@@ -2451,25 +2332,17 @@ InvokeTclMethod(
 		result = TCL_ERROR;
 	    }
 	    Tcl_AppendObjToErrorInfo(rcPtr->interp, Tcl_ObjPrintf(
-		    "\n    (chan handler subcommand \"%s\")", method));
+		    "\n    (chan handler subcommand \"%s\")",
+		    methodNames[method]));
 	    resObj = MarshallError(rcPtr->interp);
 	}
 	Tcl_IncrRefCount(resObj);
     }
+    Tcl_DecrRefCount(cmd);
     Tcl_RestoreInterpState(rcPtr->interp, sr);
     Tcl_Release(rcPtr->interp);
 
     /*
-     * Cleanup of the dynamic parts of the command.
-     *
-     * The detail objects survived the Tcl_EvalObjv without change because of
-     * the contract. Therefore there is no need to decrement the refcounts. Only
-     * the internal method object has to be disposed of.
-     */
-
-    Tcl_DecrRefCount(methObj);
-
-    /*
      * The resObj has a ref count of 1 at this location. This means that the
      * caller of InvokeTclMethod has to dispose of it (but only if it was
      * returned to it).
@@ -2590,6 +2463,28 @@ GetReflectedChannelMap(
  */
 
 static void
+MarkDead(
+    ReflectedChannel *rcPtr)
+{
+    if (rcPtr->dead) {
+	return;
+    }
+    if (rcPtr->name) {
+	Tcl_DecrRefCount(rcPtr->name);
+	rcPtr->name = NULL;
+    }
+    if (rcPtr->methods) {
+	Tcl_DecrRefCount(rcPtr->methods);
+	rcPtr->methods = NULL;
+    }
+    if (rcPtr->cmd) {
+	Tcl_DecrRefCount(rcPtr->cmd);
+	rcPtr->cmd = NULL;
+    }
+    rcPtr->dead = 1;
+}
+
+static void
 DeleteReflectedChannelMap(
     ClientData clientData,	/* The per-interpreter data structure. */
     Tcl_Interp *interp)		/* The interpreter being deleted. */
@@ -2624,7 +2519,7 @@ DeleteReflectedChannelMap(
 	chan = Tcl_GetHashValue(hPtr);
 	rcPtr = Tcl_GetChannelInstanceData(chan);
 
-	rcPtr->dead = 1;
+	MarkDead(rcPtr);
 	Tcl_DeleteHashEntry(hPtr);
     }
     Tcl_DeleteHashTable(&rcmPtr->map);
@@ -2657,6 +2552,11 @@ DeleteReflectedChannelMap(
 	/*
 	 * The receiver for the event exited, before processing the event. We
 	 * detach the result now, wake the originator up and signal failure.
+         *
+         * Attention: Results may have been detached already, by either the
+         * receiver, or this thread, as part of other parts in the thread
+         * teardown. Such results are ignored. See ticket [b47b176adf] for the
+         * identical race condition in Tcl 8.6 IORTrans.
 	 */
 
 	evPtr = resultPtr->evPtr;
@@ -2666,6 +2566,9 @@ DeleteReflectedChannelMap(
 	    continue;
 	}
 	paramPtr = evPtr->param;
+	if (!evPtr) {
+	    continue;
+	}
 
 	evPtr->resultPtr = NULL;
 	resultPtr->evPtr = NULL;
@@ -2699,8 +2602,7 @@ DeleteReflectedChannelMap(
 	    continue;
 	}
 
-	rcPtr->dead = 1;
-	FreeReflectedChannelArgs(rcPtr);
+	MarkDead(rcPtr);
 	Tcl_DeleteHashEntry(hPtr);
     }
 #endif
@@ -2797,6 +2699,11 @@ DeleteThreadReflectedChannelMap(
 	/*
 	 * The receiver for the event exited, before processing the event. We
 	 * detach the result now, wake the originator up and signal failure.
+         *
+         * Attention: Results may have been detached already, by either the
+         * receiver, or this thread, as part of other parts in the thread
+         * teardown. Such results are ignored. See ticket [b47b176adf] for the
+         * identical race condition in Tcl 8.6 IORTrans.
 	 */
 
 	evPtr = resultPtr->evPtr;
@@ -2806,6 +2713,9 @@ DeleteThreadReflectedChannelMap(
 	    continue;
 	}
 	paramPtr = evPtr->param;
+	if (!evPtr) {
+	    continue;
+	}
 
 	evPtr->resultPtr = NULL;
 	resultPtr->evPtr = NULL;
@@ -2839,8 +2749,7 @@ DeleteThreadReflectedChannelMap(
 	Tcl_Channel chan = Tcl_GetHashValue(hPtr);
 	ReflectedChannel *rcPtr = Tcl_GetChannelInstanceData(chan);
 
-	rcPtr->dead = 1;
-	FreeReflectedChannelArgs(rcPtr);
+	MarkDead(rcPtr);
 	Tcl_DeleteHashEntry(hPtr);
     }
     ckfree(rcmPtr);
@@ -3018,17 +2927,17 @@ ForwardProc(
 	 * call upon for the driver.
 	 */
 
-    case ForwardedClose:
+    case ForwardedClose: {
 	/*
 	 * No parameters/results.
 	 */
 
-	if (InvokeTclMethod(rcPtr, "finalize", NULL, NULL, &resObj)!=TCL_OK) {
+	if (InvokeTclMethod(rcPtr, METH_FINAL, NULL, NULL, &resObj)!=TCL_OK) {
 	    ForwardSetObjError(paramPtr, resObj);
 	}
 
 	/*
-	 * Freeing is done here, in the origin thread, because the argv[]
+	 * Freeing is done here, in the origin thread, callback command
 	 * objects belong to this thread. Deallocating them in a different
 	 * thread is not allowed
 	 *
@@ -3046,16 +2955,16 @@ ForwardProc(
 	hPtr = Tcl_FindHashEntry(&rcmPtr->map,
                 Tcl_GetChannelName(rcPtr->chan));
 	Tcl_DeleteHashEntry(hPtr);
-
-	FreeReflectedChannelArgs(rcPtr);
+	MarkDead(rcPtr);
 	break;
+    }
 
     case ForwardedInput: {
 	Tcl_Obj *toReadObj = Tcl_NewIntObj(paramPtr->input.toRead);
         Tcl_IncrRefCount(toReadObj);
 
         Tcl_Preserve(rcPtr);
-	if (InvokeTclMethod(rcPtr, "read", toReadObj, NULL, &resObj)!=TCL_OK){
+	if (InvokeTclMethod(rcPtr, METH_READ, toReadObj, NULL, &resObj)!=TCL_OK){
 	    int code = ErrnoReturn(rcPtr, resObj);
 
 	    if (code < 0) {
@@ -3095,7 +3004,7 @@ ForwardProc(
         Tcl_IncrRefCount(bufObj);
 
         Tcl_Preserve(rcPtr);
-	if (InvokeTclMethod(rcPtr, "write", bufObj, NULL, &resObj) != TCL_OK) {
+	if (InvokeTclMethod(rcPtr, METH_WRITE, bufObj, NULL, &resObj) != TCL_OK) {
 	    int code = ErrnoReturn(rcPtr, resObj);
 
 	    if (code < 0) {
@@ -3138,7 +3047,7 @@ ForwardProc(
         Tcl_IncrRefCount(baseObj);
 
         Tcl_Preserve(rcPtr);
-	if (InvokeTclMethod(rcPtr, "seek", offObj, baseObj, &resObj)!=TCL_OK){
+	if (InvokeTclMethod(rcPtr, METH_SEEK, offObj, baseObj, &resObj)!=TCL_OK){
 	    ForwardSetObjError(paramPtr, resObj);
 	    paramPtr->seek.offset = -1;
 	} else {
@@ -3174,7 +3083,7 @@ ForwardProc(
         /* assert maskObj.refCount == 1 */
 
         Tcl_Preserve(rcPtr);
-	(void) InvokeTclMethod(rcPtr, "watch", maskObj, NULL, NULL);
+	(void) InvokeTclMethod(rcPtr, METH_WATCH, maskObj, NULL, NULL);
 	Tcl_DecrRefCount(maskObj);
         Tcl_Release(rcPtr);
 	break;
@@ -3185,7 +3094,7 @@ ForwardProc(
 
         Tcl_IncrRefCount(blockObj);
         Tcl_Preserve(rcPtr);
-	if (InvokeTclMethod(rcPtr, "blocking", blockObj, NULL,
+	if (InvokeTclMethod(rcPtr, METH_BLOCKING, blockObj, NULL,
                 &resObj) != TCL_OK) {
 	    ForwardSetObjError(paramPtr, resObj);
 	}
@@ -3201,7 +3110,7 @@ ForwardProc(
         Tcl_IncrRefCount(optionObj);
         Tcl_IncrRefCount(valueObj);
         Tcl_Preserve(rcPtr);
-	if (InvokeTclMethod(rcPtr, "configure", optionObj, valueObj,
+	if (InvokeTclMethod(rcPtr, METH_CONFIGURE, optionObj, valueObj,
                 &resObj) != TCL_OK) {
 	    ForwardSetObjError(paramPtr, resObj);
 	}
@@ -3220,7 +3129,7 @@ ForwardProc(
 
         Tcl_IncrRefCount(optionObj);
         Tcl_Preserve(rcPtr);
-	if (InvokeTclMethod(rcPtr, "cget", optionObj, NULL, &resObj)!=TCL_OK){
+	if (InvokeTclMethod(rcPtr, METH_CGET, optionObj, NULL, &resObj)!=TCL_OK){
 	    ForwardSetObjError(paramPtr, resObj);
 	} else {
 	    TclDStringAppendObj(paramPtr->getOpt.value, resObj);
@@ -3236,7 +3145,7 @@ ForwardProc(
 	 */
 
         Tcl_Preserve(rcPtr);
-	if (InvokeTclMethod(rcPtr, "cgetall", NULL, NULL, &resObj) != TCL_OK){
+	if (InvokeTclMethod(rcPtr, METH_CGETALL, NULL, NULL, &resObj) != TCL_OK){
 	    ForwardSetObjError(paramPtr, resObj);
 	} else {
 	    /*
diff --git a/generic/tclIORTrans.c b/generic/tclIORTrans.c
index 2b9efb9..8baa9ad 100644
--- a/generic/tclIORTrans.c
+++ b/generic/tclIORTrans.c
@@ -161,6 +161,7 @@ typedef struct {
     int mode;			/* Mask of R/W mode */
     int nonblocking;		/* Flag: Channel is blocking or not. */
     int readIsDrained;		/* Flag: Read buffers are flushed. */
+    int eofPending;		/* Flag: EOF seen down, but not raised up */
     int dead;			/* Boolean signal that some operations
 				 * should no longer be attempted. */
     ResultBuffer result;
@@ -457,8 +458,7 @@ static void		TimerKill(ReflectedTransform *rtPtr);
 static void		TimerSetup(ReflectedTransform *rtPtr);
 static void		TimerRun(ClientData clientData);
 static int		TransformRead(ReflectedTransform *rtPtr,
-			    int *errorCodePtr, unsigned char *buf,
-			    int toRead);
+			    int *errorCodePtr, Tcl_Obj *bufObj);
 static int		TransformWrite(ReflectedTransform *rtPtr,
 			    int *errorCodePtr, unsigned char *buf,
 			    int toWrite);
@@ -1063,6 +1063,7 @@ ReflectInput(
 {
     ReflectedTransform *rtPtr = clientData;
     int gotBytes, copied, readBytes;
+    Tcl_Obj *bufObj;
 
     /*
      * The following check can be done before thread redirection, because we
@@ -1078,7 +1079,14 @@ ReflectInput(
 
     Tcl_Preserve(rtPtr);
 
+    /* TODO: Consider a more appropriate buffer size. */
+    bufObj = Tcl_NewByteArrayObj(NULL, toRead);
+    Tcl_IncrRefCount(bufObj);
     gotBytes = 0;
+    if (rtPtr->eofPending) {
+	goto stop;
+    }
+    rtPtr->readIsDrained = 0;
     while (toRead > 0) {
 	/*
 	 * Loop until the request is satisfied (or no data available from
@@ -1094,6 +1102,11 @@ ReflectInput(
 	    goto stop;
 	}
 
+	if (rtPtr->eofPending) {
+	    goto stop;
+	}
+
+
 	/*
 	 * The buffer is exhausted, but the caller wants even more. We now
 	 * have to go to the underlying channel, get more bytes and then
@@ -1129,56 +1142,42 @@ ReflectInput(
 	    goto stop;
 	}
 
-	readBytes = Tcl_ReadRaw(rtPtr->parent, buf, toRead);
+
+	readBytes = Tcl_ReadRaw(rtPtr->parent,
+		(char *) Tcl_SetByteArrayLength(bufObj, toRead), toRead);
 	if (readBytes < 0) {
-	    /*
-	     * Report errors to caller. The state of the seek system is
-	     * unchanged!
-	     */
+	    if (Tcl_InputBlocked(rtPtr->parent) && (gotBytes > 0)) {
 
-	    if ((Tcl_GetErrno() == EAGAIN) && (gotBytes > 0)) {
 		/*
-		 * EAGAIN is a special situation. If we had some data before
-		 * we report that instead of the request to re-try.
+		 * Down channel is blocked and offers zero additional bytes.
+		 * The nonzero gotBytes already returned makes the total
+		 * operation a valid short read.  Return to caller.
 		 */
 
 		goto stop;
 	    }
 
+	    /*
+	     * Either the down channel is not blocked (a real error)
+	     * or it is and there are gotBytes==0 byte copied so far.
+	     * In either case, pass up the error, so we either report
+	     * any real error, or do not mistakenly signal EOF by
+	     * returning 0 to the caller.
+	     */
+
 	    *errorCodePtr = Tcl_GetErrno();
 	    goto error;
 	}
 
 	if (readBytes == 0) {
+
 	    /*
-	     * Check wether we hit on EOF in 'parent' or not. If not
-	     * differentiate between blocking and non-blocking modes. In
-	     * non-blocking mode we ran temporarily out of data. Signal this
-	     * to the caller via EWOULDBLOCK and error return (-1). In the
-	     * other cases we simply return what we got and let the caller
-	     * wait for more. On the other hand, if we got an EOF we have to
-	     * convert and flush all waiting partial data.
+	     * Zero returned from Tcl_ReadRaw() always indicates EOF
+	     * on the down channel.
 	     */
 
-	    if (!Tcl_Eof(rtPtr->parent)) {
-		/*
-		 * The state of the seek system is unchanged!
-		 */
-
-		if ((gotBytes == 0) && rtPtr->nonblocking) {
-		    *errorCodePtr = EWOULDBLOCK;
-		    goto error;
-		}
-		goto stop;
-	    } else {
-		/*
-		 * Eof in parent.
-		 */
-
-		if (rtPtr->readIsDrained) {
-		    goto stop;
-		}
-
+	    rtPtr->eofPending = 1;
+	
 		/*
 		 * Now this is a bit different. The partial data waiting is
 		 * converted and returned.
@@ -1198,13 +1197,7 @@ ReflectInput(
 		    goto stop;
 		}
 
-		/*
-		 * Reset eof, force caller to drain result buffer.
-		 */
-
-		((Channel *) rtPtr->parent)->state->flags &= ~CHANNEL_EOF;
 		continue; /* at: while (toRead > 0) */
-	    }
 	} /* readBytes == 0 */
 
 	/*
@@ -1213,12 +1206,23 @@ ReflectInput(
 	 * iteration will put it into the result.
 	 */
 
-	if (!TransformRead(rtPtr, errorCodePtr, UCHARP(buf), readBytes)) {
+	Tcl_SetByteArrayLength(bufObj, readBytes);
+	if (!TransformRead(rtPtr, errorCodePtr, bufObj)) {
 	    goto error;
 	}
+	if (Tcl_IsShared(bufObj)) {
+	    Tcl_DecrRefCount(bufObj);
+	    bufObj = Tcl_NewObj();
+	    Tcl_IncrRefCount(bufObj);
+	}
+	Tcl_SetByteArrayLength(bufObj, 0);
     } /* while toRead > 0 */
 
  stop:
+    if (gotBytes == 0) {
+	rtPtr->eofPending = 0;
+    }
+    Tcl_DecrRefCount(bufObj);
     Tcl_Release(rtPtr);
     return gotBytes;
 
@@ -1773,6 +1777,7 @@ NewReflectedTransform(
     rtPtr->timer = NULL;
     rtPtr->mode = 0;
     rtPtr->readIsDrained = 0;
+    rtPtr->eofPending = 0;
     rtPtr->nonblocking =
 	    (((Channel *) parentChan)->state->flags & CHANNEL_NONBLOCKING);
     rtPtr->dead = 0;
@@ -2010,6 +2015,7 @@ InvokeTclMethod(
 
     sr = Tcl_SaveInterpState(rtPtr->interp, 0 /* Dummy */);
     Tcl_Preserve(rtPtr);
+    Tcl_Preserve(rtPtr->interp);
     result = Tcl_EvalObjv(rtPtr->interp, cmdc, rtPtr->argv, TCL_EVAL_GLOBAL);
 
     /*
@@ -2054,6 +2060,7 @@ InvokeTclMethod(
 	Tcl_IncrRefCount(resObj);
     }
     Tcl_RestoreInterpState(rtPtr->interp, sr);
+    Tcl_Release(rtPtr->interp);
     Tcl_Release(rtPtr);
 
     /*
@@ -2230,6 +2237,9 @@ DeleteReflectedTransformMap(
 	 */
 
 	evPtr = resultPtr->evPtr;
+	if (evPtr == NULL) {
+	    continue;
+	}
 	paramPtr = evPtr->param;
 
 	evPtr->resultPtr = NULL;
@@ -2355,6 +2365,9 @@ DeleteThreadReflectedTransformMap(
 	 */
 
 	evPtr = resultPtr->evPtr;
+	if (evPtr == NULL) {
+	    continue;
+	}
 	paramPtr = evPtr->param;
 
 	evPtr->resultPtr = NULL;
@@ -2942,7 +2955,7 @@ ResultClear(
 	return;
     }
 
-    Tcl_Free((char *) rPtr->buf);
+    ckfree((char *) rPtr->buf);
     rPtr->buf = NULL;
     rPtr->allocated = 0;
 }
@@ -2977,10 +2990,10 @@ ResultAdd(
 
 	if (rPtr->allocated == 0) {
 	    rPtr->allocated = toWrite + RB_INCREMENT;
-	    rPtr->buf = UCHARP(Tcl_Alloc(rPtr->allocated));
+	    rPtr->buf = UCHARP(ckalloc(rPtr->allocated));
 	} else {
 	    rPtr->allocated += toWrite + RB_INCREMENT;
-	    rPtr->buf = UCHARP(Tcl_Realloc((char *) rPtr->buf,
+	    rPtr->buf = UCHARP(ckrealloc((char *) rPtr->buf,
 		    rPtr->allocated));
 	}
     }
@@ -3065,10 +3078,8 @@ static int
 TransformRead(
     ReflectedTransform *rtPtr,
     int *errorCodePtr,
-    unsigned char *buf,
-    int toRead)
+    Tcl_Obj *bufObj)
 {
-    Tcl_Obj *bufObj;
     Tcl_Obj *resObj;
     int bytec;			/* Number of returned bytes */
     unsigned char *bytev;	/* Array of returned bytes */
@@ -3081,8 +3092,8 @@ TransformRead(
     if (rtPtr->thread != Tcl_GetCurrentThread()) {
 	ForwardParam p;
 
-	p.transform.buf = (char *) buf;
-	p.transform.size = toRead;
+	p.transform.buf = (char *) Tcl_GetByteArrayFromObj(bufObj,
+		&(p.transform.size));
 
 	ForwardOpToOwnerThread(rtPtr, ForwardedInput, &p);
 
@@ -3102,12 +3113,8 @@ TransformRead(
     /* ASSERT: rtPtr->method & FLAG(METH_READ) */
     /* ASSERT: rtPtr->mode & TCL_READABLE */
 
-    bufObj = Tcl_NewByteArrayObj((unsigned char *) buf, toRead);
-    Tcl_IncrRefCount(bufObj);
-
     if (InvokeTclMethod(rtPtr, "read", bufObj, NULL, &resObj) != TCL_OK) {
 	Tcl_SetChannelError(rtPtr->chan, resObj);
-	Tcl_DecrRefCount(bufObj);
 	Tcl_DecrRefCount(resObj);	/* Remove reference held from invoke */
 	*errorCodePtr = EINVAL;
 	return 0;
@@ -3116,7 +3123,6 @@ TransformRead(
     bytev = Tcl_GetByteArrayFromObj(resObj, &bytec);
     ResultAdd(&rtPtr->result, bytev, bytec);
 
-    Tcl_DecrRefCount(bufObj);
     Tcl_DecrRefCount(resObj);		/* Remove reference held from invoke */
     return 1;
 }
@@ -3184,7 +3190,7 @@ TransformWrite(
     }
 
     if (res < 0) {
-	*errorCodePtr = EINVAL;
+	*errorCodePtr = Tcl_GetErrno();
 	return 0;
     }
 
@@ -3294,7 +3300,7 @@ TransformFlush(
     }
 
     if (res < 0) {
-	*errorCodePtr = EINVAL;
+	*errorCodePtr = Tcl_GetErrno();
 	return 0;
     }
 
@@ -3324,6 +3330,7 @@ TransformClear(
     (void) InvokeTclMethod(rtPtr, "clear", NULL, NULL, NULL);
 
     rtPtr->readIsDrained = 0;
+    rtPtr->eofPending = 0;
     ResultClear(&rtPtr->result);
 }
 
diff --git a/generic/tclIOSock.c b/generic/tclIOSock.c
index e603c91..f69d30f 100644
--- a/generic/tclIOSock.c
+++ b/generic/tclIOSock.c
@@ -12,9 +12,26 @@
 #include "tclInt.h"
 
 #if defined(_WIN32) && defined(UNICODE)
-/* On Windows, we always need the ASCII version. */
-#   undef gai_strerror
-#   define gai_strerror gai_strerrorA
+/* On Windows, we need to do proper Unicode->UTF-8 conversion. */
+
+typedef struct ThreadSpecificData {
+    int initialized;
+    Tcl_DString errorMsg; /* UTF-8 encoded error-message */
+} ThreadSpecificData;
+static Tcl_ThreadDataKey dataKey;
+
+#undef gai_strerror
+static const char *gai_strerror(int code) {
+    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+ 
+    if (tsdPtr->initialized) {
+	Tcl_DStringFree(&tsdPtr->errorMsg);
+    } else {
+	tsdPtr->initialized = 1;
+    }
+    Tcl_WinTCharToUtf(gai_strerrorW(code), -1, &tsdPtr->errorMsg);
+    return Tcl_DStringValue(&tsdPtr->errorMsg);
+}
 #endif
 
 /*
@@ -151,7 +168,7 @@ TclCreateSocketAddress(
     struct addrinfo *p;
     struct addrinfo *v4head = NULL, *v4ptr = NULL;
     struct addrinfo *v6head = NULL, *v6ptr = NULL;
-    char *native = NULL, portstring[TCL_INTEGER_SPACE];
+    char *native = NULL, portbuf[TCL_INTEGER_SPACE], *portstring;
     const char *family = NULL;
     Tcl_DString ds;
     int result, i;
@@ -159,7 +176,18 @@ TclCreateSocketAddress(
     if (host != NULL) {
 	native = Tcl_UtfToExternalDString(NULL, host, -1, &ds);
     }
-    TclFormatInt(portstring, port);
+
+    /*
+     * Workaround for OSX's apparent inability to resolve "localhost", "0"
+     * when the loopback device is the only available network interface.
+     */
+    if (host != NULL && port == 0) {
+        portstring = NULL;
+    } else {
+        TclFormatInt(portbuf, port);
+        portstring = portbuf;
+    }
+    
     (void) memset(&hints, 0, sizeof(hints));
     hints.ai_family = AF_UNSPEC;
 
diff --git a/generic/tclIOUtil.c b/generic/tclIOUtil.c
index 2d6d898..d2919fc 100644
--- a/generic/tclIOUtil.c
+++ b/generic/tclIOUtil.c
@@ -18,15 +18,18 @@
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  */
 
-#if defined(HAVE_SYS_STAT_H) && !defined _WIN32
-#   include <sys/stat.h>
-#endif
 #include "tclInt.h"
-#ifdef __WIN32__
+#ifdef _WIN32
 #   include "tclWinInt.h"
 #endif
 #include "tclFileSystem.h"
 
+#ifdef TCL_TEMPLOAD_NO_UNLINK
+#ifndef NO_FSTATFS
+#include <sys/statfs.h>
+#endif
+#endif
+
 /*
  * struct FilesystemRecord --
  *
@@ -182,8 +185,8 @@ const Tcl_Filesystem tclNativeFilesystem = {
     TclpObjRenameFile,
     TclpObjCopyDirectory,
     TclpObjLstat,
-    TclpDlopen,
-    /* Needs a cast since we're using version_2. */
+    /* Needs casts since we're using version_2. */
+    (Tcl_FSLoadFileProc *) TclpDlopen,
     (Tcl_FSGetCwdProc *) TclpGetNativeCwd,
     TclpObjChdir
 };
@@ -795,7 +798,7 @@ TclFinalizeFilesystem(void)
      * filesystem is likely to fail.
      */
 
-#ifdef __WIN32__
+#ifdef _WIN32
     TclWinEncodingsCleanup();
 #endif
 }
@@ -822,7 +825,7 @@ TclResetFilesystem(void)
     filesystemList = &nativeFilesystemRecord;
     theFilesystemEpoch++;
 
-#ifdef __WIN32__
+#ifdef _WIN32
     /*
      * Cleans up the win32 API filesystem proc lookup table. This must happen
      * very late in finalization so that deleting of copied dlls can occur.
@@ -3113,6 +3116,82 @@ Tcl_FSLoadFile(
  *----------------------------------------------------------------------
  */
 
+/*
+ * Workaround for issue with modern HPUX which do allow the unlink (no ETXTBSY
+ * error) yet somehow trash some internal data structures which prevents the
+ * second and further shared libraries from getting properly loaded. Only the
+ * first is ok. We try to get around the issue by not unlinking,
+ * i.e. emulating the behaviour of the older HPUX which denied removal.
+ *
+ * Doing the unlink is also an issue within docker containers, whose AUFS
+ * bungles this as well, see
+ *     https://github.com/dotcloud/docker/issues/1911
+ *
+ * For these situations the change below makes the execution of the unlink
+ * semi-controllable at runtime.
+ *
+ *     An AUFS filesystem (if it can be detected) will force avoidance of
+ *     unlink. The env variable TCL_TEMPLOAD_NO_UNLINK allows detection of a
+ *     users general request (unlink and not.
+ *
+ * By default the unlink is done (if not in AUFS). However if the variable is
+ * present and set to true (any integer > 0) then the unlink is skipped.
+ */
+
+int
+TclSkipUnlink (Tcl_Obj* shlibFile)
+{
+    /* Order of testing:
+     * 1. On hpux we generally want to skip unlink in general
+     *
+     * Outside of hpux then:
+     * 2. For a general user request   (TCL_TEMPLOAD_NO_UNLINK present, non-empty, => int)
+     * 3. For general AUFS environment (statfs, if available).
+     *
+     * Ad 2: This variable can disable/override the AUFS detection, i.e. for
+     * testing if a newer AUFS does not have the bug any more.
+     * 
+     * Ad 3: This is conditionally compiled in. Condition currently must be set manually.
+     *       This part needs proper tests in the configure(.in).
+     */
+
+#ifdef hpux
+    return 1;
+#else
+    char* skipstr;
+
+    skipstr = getenv ("TCL_TEMPLOAD_NO_UNLINK");
+    if (skipstr && (skipstr[0] != '\0')) {
+	return atoi(skipstr);
+    }
+
+#ifdef TCL_TEMPLOAD_NO_UNLINK
+#ifndef NO_FSTATFS
+    {
+	struct statfs fs;
+	/* Have fstatfs. May not have the AUFS super magic ... Indeed our build
+	 * box is too old to have it directly in the headers. Define taken from
+	 *     http://mooon.googlecode.com/svn/trunk/linux_include/linux/aufs_type.h
+	 *     http://aufs.sourceforge.net/
+	 * Better reference will be gladly taken.
+	 */
+#ifndef AUFS_SUPER_MAGIC
+#define AUFS_SUPER_MAGIC ('a' << 24 | 'u' << 16 | 'f' << 8 | 's')
+#endif /* AUFS_SUPER_MAGIC */
+	if ((statfs(Tcl_GetString (shlibFile), &fs) == 0) &&
+	    (fs.f_type == AUFS_SUPER_MAGIC)) {
+	    return 1;
+	}
+    }
+#endif /* ... NO_FSTATFS */
+#endif /* ... TCL_TEMPLOAD_NO_UNLINK */
+
+    /* Fallback: !hpux, no EV override, no AUFS (detection, nor detected):
+     * Don't skip */
+    return 0;
+#endif /* hpux */
+}
+
 int
 Tcl_LoadFile(
     Tcl_Interp *interp,		/* Used for error reporting. */
@@ -3120,7 +3199,7 @@ Tcl_LoadFile(
 				 * code. */
     const char *const symbols[],/* Names of functions to look up in the file's
 				 * symbol table. */
-    int flags,			/* Flags (unused) */
+    int flags,			/* Flags */
     void *procVPtrs,		/* Where to return the addresses corresponding
 				 * to symbols[]. */
     Tcl_LoadHandle *handlePtr)	/* Filled with token for shared library
@@ -3145,8 +3224,8 @@ Tcl_LoadFile(
     }
 
     if (fsPtr->loadFileProc != NULL) {
-	int retVal = fsPtr->loadFileProc(interp, pathPtr, handlePtr,
-		&unloadProcPtr);
+	int retVal = ((Tcl_FSLoadFileProc2 *)(fsPtr->loadFileProc))
+		(interp, pathPtr, handlePtr, &unloadProcPtr, flags);
 
 	if (retVal == TCL_OK) {
 	    if (*handlePtr == NULL) {
@@ -3212,7 +3291,7 @@ Tcl_LoadFile(
 	ret = Tcl_Read(data, buffer, size);
 	Tcl_Close(interp, data);
 	ret = TclpLoadMemory(interp, buffer, size, ret, handlePtr,
-		&unloadProcPtr);
+		&unloadProcPtr, flags);
 	if (ret == TCL_OK && *handlePtr != NULL) {
 	    goto resolveSymbols;
 	}
@@ -3228,6 +3307,9 @@ Tcl_LoadFile(
      */
 
     copyToPtr = TclpTempFileNameForLibrary(interp, pathPtr);
+    if (copyToPtr == NULL) {
+	return TCL_ERROR;
+    }
     Tcl_IncrRefCount(copyToPtr);
 
     copyFsPtr = Tcl_FSGetFileSystemForPath(copyToPtr);
@@ -3255,7 +3337,7 @@ Tcl_LoadFile(
 	return TCL_ERROR;
     }
 
-#ifndef __WIN32__
+#ifndef _WIN32
     /*
      * Do we need to set appropriate permissions on the file? This may be
      * required on some systems. On Unix we could loop over the file
@@ -3283,7 +3365,7 @@ Tcl_LoadFile(
 
     Tcl_ResetResult(interp);
 
-    retVal = Tcl_LoadFile(interp, copyToPtr, symbols, 0, procPtrs,
+    retVal = Tcl_LoadFile(interp, copyToPtr, symbols, flags, procPtrs,
 	    &newLoadHandle);
     if (retVal != TCL_OK) {
 	/*
@@ -3300,7 +3382,9 @@ Tcl_LoadFile(
      * avoids any worries about leaving the copy laying around on exit.
      */
 
-    if (Tcl_FSDeleteFile(copyToPtr) == TCL_OK) {
+    if (
+	!TclSkipUnlink (copyToPtr) &&
+	(Tcl_FSDeleteFile(copyToPtr) == TCL_OK)) {
 	Tcl_DecrRefCount(copyToPtr);
 
 	/*
@@ -3515,50 +3599,6 @@ DivertUnloadFile(
 }
 
 /*
- * This function used to be in the platform specific directories, but it has
- * now been made to work cross-platform.
- */
-
-int
-TclpLoadFile(
-    Tcl_Interp *interp,		/* Used for error reporting. */
-    Tcl_Obj *pathPtr,		/* Name of the file containing the desired
-				 * code (UTF-8). */
-    const char *sym1, const char *sym2,
-				/* Names of two functions to look up in the
-				 * file's symbol table. */
-    Tcl_PackageInitProc **proc1Ptr, Tcl_PackageInitProc **proc2Ptr,
-				/* Where to return the addresses corresponding
-				 * to sym1 and sym2. */
-    ClientData *clientDataPtr,	/* Filled with token for dynamically loaded
-				 * file which will be passed back to
-				 * (*unloadProcPtr)() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr)
-				/* Filled with address of Tcl_FSUnloadFileProc
-				 * function which should be used for this
-				 * file. */
-{
-    Tcl_LoadHandle handle = NULL;
-    int res;
-
-    res = TclpDlopen(interp, pathPtr, &handle, unloadProcPtr);
-
-    if (res != TCL_OK) {
-	return res;
-    }
-
-    if (handle == NULL) {
-	return TCL_ERROR;
-    }
-
-    *clientDataPtr = handle;
-
-    *proc1Ptr = (Tcl_PackageInitProc*) Tcl_FindSymbol(interp, handle, sym1);
-    *proc2Ptr = (Tcl_PackageInitProc*) Tcl_FindSymbol(interp, handle, sym2);
-    return TCL_OK;
-}
-
-/*
  *----------------------------------------------------------------------
  *
  * Tcl_FindSymbol --
diff --git a/generic/tclIndexObj.c b/generic/tclIndexObj.c
index 731d759..ce8b9fb 100644
--- a/generic/tclIndexObj.c
+++ b/generic/tclIndexObj.c
@@ -53,7 +53,7 @@ static const Tcl_ObjType indexType = {
 
 /*
  * The definition of the internal representation of the "index" object; The
- * internalRep.otherValuePtr field of an object of "index" type will be a
+ * internalRep.twoPtrValue.ptr1 field of an object of "index" type will be a
  * pointer to one of these structures.
  *
  * Keep this structure declaration in sync with tclTestObj.c
@@ -69,12 +69,12 @@ typedef struct {
  * The following macros greatly simplify moving through a table...
  */
 
-#define STRING_AT(table, offset, index) \
-	(*((const char *const *)(((char *)(table)) + ((offset) * (index)))))
+#define STRING_AT(table, offset) \
+	(*((const char *const *)(((char *)(table)) + (offset))))
 #define NEXT_ENTRY(table, offset) \
-	(&(STRING_AT(table, offset, 1)))
+	(&(STRING_AT(table, offset)))
 #define EXPAND_OF(indexRep) \
-	STRING_AT((indexRep)->tablePtr, (indexRep)->offset, (indexRep)->index)
+	STRING_AT((indexRep)->tablePtr, (indexRep)->offset*(indexRep)->index)
 
 /*
  *----------------------------------------------------------------------
@@ -101,6 +101,7 @@ typedef struct {
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_GetIndexFromObj
 int
 Tcl_GetIndexFromObj(
     Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
@@ -121,7 +122,7 @@ Tcl_GetIndexFromObj(
      */
 
     if (objPtr->typePtr == &indexType) {
-	IndexRep *indexRep = objPtr->internalRep.otherValuePtr;
+	IndexRep *indexRep = objPtr->internalRep.twoPtrValue.ptr1;
 
 	/*
 	 * Here's hoping we don't get hit by unfortunate packing constraints
@@ -238,7 +239,7 @@ GetIndexFromObjList(
  *	a proper match, then TCL_ERROR is returned and an error message is
  *	left in interp's result (unless interp is NULL). The msg argument is
  *	used in the error message; for example, if msg has the value "option"
- *	then the error message will say something flag 'bad option "foo": must
+ *	then the error message will say something like 'bad option "foo": must
  *	be ...'
  *
  * Side effects:
@@ -270,12 +271,16 @@ Tcl_GetIndexFromObjStruct(
     Tcl_Obj *resultPtr;
     IndexRep *indexRep;
 
+    /* Protect against invalid values, like -1 or 0. */
+    if (offset < (int)sizeof(char *)) {
+	offset = (int)sizeof(char *);
+    }
     /*
      * See if there is a valid cached result from a previous lookup.
      */
 
     if (objPtr->typePtr == &indexType) {
-	indexRep = objPtr->internalRep.otherValuePtr;
+	indexRep = objPtr->internalRep.twoPtrValue.ptr1;
 	if (indexRep->tablePtr==tablePtr && indexRep->offset==offset) {
 	    *indexPtr = indexRep->index;
 	    return TCL_OK;
@@ -302,10 +307,6 @@ Tcl_GetIndexFromObjStruct(
 	    entryPtr = NEXT_ENTRY(entryPtr, offset), idx++) {
 	for (p1 = key, p2 = *entryPtr; *p1 == *p2; p1++, p2++) {
 	    if (*p1 == '\0') {
-		if (p1 == key) {
-		    /* empty keys never match */
-		    continue;
-		}
 		index = idx;
 		goto done;
 	    }
@@ -340,11 +341,11 @@ Tcl_GetIndexFromObjStruct(
      */
 
     if (objPtr->typePtr == &indexType) {
-	indexRep = objPtr->internalRep.otherValuePtr;
+	indexRep = objPtr->internalRep.twoPtrValue.ptr1;
     } else {
 	TclFreeIntRep(objPtr);
 	indexRep = ckalloc(sizeof(IndexRep));
-	objPtr->internalRep.otherValuePtr = indexRep;
+	objPtr->internalRep.twoPtrValue.ptr1 = indexRep;
 	objPtr->typePtr = &indexType;
     }
     indexRep->tablePtr = (void *) tablePtr;
@@ -447,7 +448,7 @@ static void
 UpdateStringOfIndex(
     Tcl_Obj *objPtr)
 {
-    IndexRep *indexRep = objPtr->internalRep.otherValuePtr;
+    IndexRep *indexRep = objPtr->internalRep.twoPtrValue.ptr1;
     register char *buf;
     register unsigned len;
     register const char *indexStr = EXPAND_OF(indexRep);
@@ -482,11 +483,11 @@ DupIndex(
     Tcl_Obj *srcPtr,
     Tcl_Obj *dupPtr)
 {
-    IndexRep *srcIndexRep = srcPtr->internalRep.otherValuePtr;
+    IndexRep *srcIndexRep = srcPtr->internalRep.twoPtrValue.ptr1;
     IndexRep *dupIndexRep = ckalloc(sizeof(IndexRep));
 
     memcpy(dupIndexRep, srcIndexRep, sizeof(IndexRep));
-    dupPtr->internalRep.otherValuePtr = dupIndexRep;
+    dupPtr->internalRep.twoPtrValue.ptr1 = dupIndexRep;
     dupPtr->typePtr = &indexType;
 }
 
@@ -511,7 +512,7 @@ static void
 FreeIndex(
     Tcl_Obj *objPtr)
 {
-    ckfree(objPtr->internalRep.otherValuePtr);
+    ckfree(objPtr->internalRep.twoPtrValue.ptr1);
     objPtr->typePtr = NULL;
 }
 
@@ -537,9 +538,9 @@ TclInitPrefixCmd(
     Tcl_Interp *interp)		/* Current interpreter. */
 {
     static const EnsembleImplMap prefixImplMap[] = {
-	{"all",		PrefixAllObjCmd, NULL, NULL, NULL, 0},
-	{"longest",	PrefixLongestObjCmd, NULL, NULL, NULL, 0},
-	{"match",	PrefixMatchObjCmd, NULL, NULL, NULL, 0},
+	{"all",	    PrefixAllObjCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+	{"longest", PrefixLongestObjCmd,TclCompileBasic2ArgCmd, NULL, NULL, 0},
+	{"match",   PrefixMatchObjCmd,	TclCompileBasicMin2ArgCmd, NULL, NULL, 0},
 	{NULL, NULL, NULL, NULL, NULL, 0}
     };
     Tcl_Command prefixCmd;
@@ -952,13 +953,13 @@ Tcl_WrongNumArgs(
 
 	    if (origObjv[i]->typePtr == &indexType) {
 		register IndexRep *indexRep =
-			origObjv[i]->internalRep.otherValuePtr;
+			origObjv[i]->internalRep.twoPtrValue.ptr1;
 
 		elementStr = EXPAND_OF(indexRep);
 		elemLen = strlen(elementStr);
 	    } else if (origObjv[i]->typePtr == &tclEnsembleCmdType) {
 		register EnsembleCmdRep *ecrPtr =
-			origObjv[i]->internalRep.otherValuePtr;
+			origObjv[i]->internalRep.twoPtrValue.ptr1;
 
 		elementStr = ecrPtr->fullSubcmdName;
 		elemLen = strlen(elementStr);
@@ -1007,12 +1008,12 @@ Tcl_WrongNumArgs(
 	 */
 
 	if (objv[i]->typePtr == &indexType) {
-	    register IndexRep *indexRep = objv[i]->internalRep.otherValuePtr;
+	    register IndexRep *indexRep = objv[i]->internalRep.twoPtrValue.ptr1;
 
 	    Tcl_AppendStringsToObj(objPtr, EXPAND_OF(indexRep), NULL);
 	} else if (objv[i]->typePtr == &tclEnsembleCmdType) {
 	    register EnsembleCmdRep *ecrPtr =
-		    objv[i]->internalRep.otherValuePtr;
+		    objv[i]->internalRep.twoPtrValue.ptr1;
 
 	    Tcl_AppendStringsToObj(objPtr, ecrPtr->fullSubcmdName, NULL);
 	} else {
diff --git a/generic/tclInt.decls b/generic/tclInt.decls
index 9f73a31..9f7b106 100644
--- a/generic/tclInt.decls
+++ b/generic/tclInt.decls
@@ -626,14 +626,14 @@ declare 156 {
 declare 157 {
     Var *TclVarTraceExists(Tcl_Interp *interp, const char *varName)
 }
-# REMOVED - use public Tcl_SetStartupScript()
-#declare 158 {
-#    void TclSetStartupScriptFileName(const char *filename)
-#}
-# REMOVED - use public Tcl_GetStartupScript()
-#declare 159 {
-#    const char *TclGetStartupScriptFileName(void)
-#}
+# REMOVED (except from stub table) - use public Tcl_SetStartupScript()
+declare 158 {
+    void TclSetStartupScriptFileName(const char *filename)
+}
+# REMOVED (except from stub table) - use public Tcl_GetStartupScript()
+declare 159 {
+    const char *TclGetStartupScriptFileName(void)
+}
 #declare 160 {
 #    int TclpMatchFilesTypes(Tcl_Interp *interp, char *separators,
 #	    Tcl_DString *dirPtr, char *pattern, char *tail,
@@ -678,14 +678,14 @@ declare 166 {
 }
 
 # VFS-aware versions of Tcl*StartupScriptFileName (158 and 159 above)
-# REMOVED - use public Tcl_SetStartupScript()
-#declare 167 {
-#    void TclSetStartupScriptPath(Tcl_Obj *pathPtr)
-#}
-# REMOVED - use public Tcl_GetStartupScript()
-#declare 168 {
-#    Tcl_Obj *TclGetStartupScriptPath(void)
-#}
+# REMOVED (except from stub table) - use public Tcl_SetStartupScript()
+declare 167 {
+    void TclSetStartupScriptPath(Tcl_Obj *pathPtr)
+}
+# REMOVED (except from stub table) - use public Tcl_GetStartupScript()
+declare 168 {
+    Tcl_Obj *TclGetStartupScriptPath(void)
+}
 # variant of Tcl_UtfNCmp that takes n as bytes, not chars
 declare 169 {
     int TclpUtfNcmp2(const char *s1, const char *s2, unsigned long n)
@@ -731,13 +731,13 @@ declare 177 {
     void TclVarErrMsg(Tcl_Interp *interp, const char *part1, const char *part2,
 	    const char *operation, const char *reason)
 }
-# TIP 338 made these public - now declared in tcl.h
-#declare 178 {
-#    void Tcl_SetStartupScript(Tcl_Obj *pathPtr, const char *encodingName)
-#}
-#declare 179 {
-#    Tcl_Obj *Tcl_GetStartupScript(const char **encodingNamePtr)
-#}
+# TIP 338 made these public - now declared in tcl.h too
+declare 178 {
+    void Tcl_SetStartupScript(Tcl_Obj *pathPtr, const char *encodingName)
+}
+declare 179 {
+    Tcl_Obj *Tcl_GetStartupScript(const char **encodingNamePtr)
+}
 
 # REMOVED
 # Allocate lists without copying arrays
@@ -941,9 +941,9 @@ declare 235 {
 
 
 # TIP 337 made this one public
-#declare 236 {
-#    void TclBackgroundException(Tcl_Interp *interp, int code)
-#}
+declare 236 {
+    void TclBackgroundException(Tcl_Interp *interp, int code)
+}
 
 # TIP #285: Script cancellation support.
 declare 237 {
@@ -1006,6 +1006,12 @@ declare 249 {
 declare 250 {
     void TclSetSlaveCancelFlags(Tcl_Interp *interp, int flags, int force)
 }
+
+# Allow extensions for optimization
+declare 251 {
+    int TclRegisterLiteral(void *envPtr,
+	    char *bytes, int length, int flags)
+}
 
 ##############################################################################
 
@@ -1148,9 +1154,6 @@ declare 27 win {
 declare 28 win {
     void TclWinResetInterfaces(void)
 }
-declare 29 win {
-    int TclWinCPUID(unsigned int index, unsigned int *regs)
-}
 
 ################################
 # Unix specific functions
@@ -1242,9 +1245,17 @@ declare 18 macosx {
 declare 19 macosx {
     void TclMacOSXNotifierAddRunLoopMode(const void *runLoopMode)
 }
-declare 29 unix {
+
+declare 29 {win unix} {
     int TclWinCPUID(unsigned int index, unsigned int *regs)
 }
+# Added in 8.6; core of TclpOpenTemporaryFile
+declare 30 {win unix} {
+    int TclUnixOpenTemporaryFile(Tcl_Obj *dirObj, Tcl_Obj *basenameObj,
+	    Tcl_Obj *extensionObj, Tcl_Obj *resultingNameObj)
+}
+
+
 
 # Local Variables:
 # mode: tcl
diff --git a/generic/tclInt.h b/generic/tclInt.h
index 6c6e664..c89f053 100644
--- a/generic/tclInt.h
+++ b/generic/tclInt.h
@@ -23,7 +23,6 @@
  * Some numerics configuration options.
  */
 
-#undef NO_WIDE_TYPE
 #undef ACCEPT_NAN
 
 /*
@@ -31,8 +30,7 @@
  * here, so that system-dependent personalizations for the include files only
  * have to be made in once place. This results in a few extra includes, but
  * greater modularity. The order of the three groups of #includes is
- * important. For example, stdio.h is needed by tcl.h, and the _ANSI_ARGS_
- * declaration in tcl.h is needed by stdlib.h in some configurations.
+ * important. For example, stdio.h is needed by tcl.h.
  */
 
 #include "tclPort.h"
@@ -96,14 +94,6 @@ typedef int ptrdiff_t;
 #endif
 
 /*
- * When Tcl_WideInt and long are the same type, there's no value in
- * having a tclWideIntType separate from the tclIntType.
- */
-#ifdef TCL_WIDE_INT_IS_LONG
-#define NO_WIDE_TYPE
-#endif
-
-/*
  * Macros used to cast between pointers and integers (e.g. when storing an int
  * in ClientData), on 64-bit architectures they avoid gcc warning about "cast
  * to/from pointer from/to integer of different size".
@@ -128,6 +118,10 @@ typedef int ptrdiff_t;
 #   endif
 #endif
 
+#if defined(_WIN32) && defined(_MSC_VER)
+#   define vsnprintf _vsnprintf
+#endif
+
 /*
  * The following procedures allow namespaces to be customized to support
  * special name resolution rules for commands/variables.
@@ -396,7 +390,7 @@ struct NamespacePathEntry {
 
 /*
  * The data cached in an ensemble subcommand's Tcl_Obj rep (reference in
- * otherValuePtr field). This structure is not shared between Tcl_Objs
+ * twoPtrValue.ptr1 field). This structure is not shared between Tcl_Objs
  * referring to the same subcommand, even where one is a duplicate of another.
  */
 
@@ -589,30 +583,6 @@ typedef struct ActiveVarTrace {
 } ActiveVarTrace;
 
 /*
- * The following structure describes an enumerative search in progress on an
- * array variable; this are invoked with options to the "array" command.
- */
-
-typedef struct ArraySearch {
-    int id;			/* Integer id used to distinguish among
-				 * multiple concurrent searches for the same
-				 * array. */
-    struct Var *varPtr;		/* Pointer to array variable that's being
-				 * searched. */
-    Tcl_HashSearch search;	/* Info kept by the hash module about progress
-				 * through the array. */
-    Tcl_HashEntry *nextEntry;	/* Non-null means this is the next element to
-				 * be enumerated (it's leftover from the
-				 * Tcl_FirstHashEntry call or from an "array
-				 * anymore" command). NULL means must call
-				 * Tcl_NextHashEntry to get value to
-				 * return. */
-    struct ArraySearch *nextPtr;/* Next in list of all active searches for
-				 * this variable, or NULL if this is the last
-				 * one. */
-} ArraySearch;
-
-/*
  * The structure below defines a variable, which associates a string name with
  * a Tcl_Obj value. These structures are kept in procedure call frames (for
  * local variables recognized by the compiler) or in the heap (for global
@@ -1154,7 +1124,7 @@ typedef struct CallFrame {
 				 * meaning of the value is, which we do not
 				 * specify. */
     LocalCache *localCachePtr;
-    struct NRE_callback *tailcallPtr;
+    Tcl_Obj    *tailcallPtr;
 				/* NULL if no tailcall is scheduled */
 } CallFrame;
 
@@ -1205,29 +1175,27 @@ typedef struct CmdFrame {
      *
      * EXECUTION CONTEXTS and usage of CmdFrame
      *
-     * Field	  TEBC		  EvalEx	  EvalObjEx
-     * =======	  ====		  ======	  =========
-     * level	  yes		  yes		  yes
-     * type	  BC/PREBC	  SRC/EVAL	  EVAL_LIST
-     * line0	  yes		  yes		  yes
-     * framePtr	  yes		  yes		  yes
-     * =======	  ====		  ======	  =========
+     * Field	  TEBC		  EvalEx
+     * =======	  ====		  ======
+     * level	  yes		  yes	
+     * type	  BC/PREBC	  SRC/EVAL
+     * line0	  yes		  yes	
+     * framePtr	  yes		  yes	
+     * =======	  ====		  ======
      *
-     * =======	  ====		  ======	  ========= union data
-     * line1	  -		  yes		  -
-     * line3	  -		  yes		  -
-     * path	  -		  yes		  -
-     * -------	  ----		  ------	  ---------
-     * codePtr	  yes		  -		  -
-     * pc	  yes		  -		  -
-     * =======	  ====		  ======	  =========
+     * =======	  ====		  ========= union data
+     * line1	  -		  yes	
+     * line3	  -		  yes	
+     * path	  -		  yes	
+     * -------	  ----		  ------
+     * codePtr	  yes		  -	
+     * pc	  yes		  -	
+     * =======	  ====		  ======
      *
-     * =======	  ====		  ======	  ========= | union cmd
-     * listPtr	  -		  -		  yes	    |
-     * -------	  ----		  ------	  --------- |
-     * cmd	  yes		  yes		  -	    |
-     * cmdlen	  yes		  yes		  -	    |
-     * -------	  ----		  ------	  --------- |
+     * =======	  ====		  ========= union cmd
+     * str.cmd	  yes		  yes	
+     * str.len	  yes		  yes	
+     * -------	  ----		  ------	
      */
 
     union {
@@ -1240,15 +1208,9 @@ typedef struct CmdFrame {
 	    const char *pc;	/* ... and instruction pointer. */
 	} tebc;
     } data;
-    union {
-	struct {
-	    const char *cmd;	/* The executed command, if possible... */
-	    int len;		/* ... and its length. */
-	} str;
-	Tcl_Obj *listPtr;	/* Tcl_EvalObjEx, cmd list. */
-    } cmd;
-    int numLevels;		/* Value of interp's numLevels when the frame
-				 * was pushed. */
+    Tcl_Obj *cmdObj;
+    const char *cmd;		/* The executed command, if possible... */
+    int len;			/* ... and its length. */
     const struct CFWordBC *litarg;
 				/* Link to set of literal arguments which have
 				 * ben pushed on the lineLABCPtr stack by
@@ -1312,8 +1274,6 @@ typedef struct ContLineLoc {
  * location data referenced via the 'baseLocPtr'.
  *
  * TCL_LOCATION_EVAL	  : Frame is for a script evaluated by EvalEx.
- * TCL_LOCATION_EVAL_LIST : Frame is for a script evaluated by the list
- *			    optimization path of EvalObjEx.
  * TCL_LOCATION_BC	  : Frame is for bytecode.
  * TCL_LOCATION_PREBC	  : Frame is for precompiled bytecode.
  * TCL_LOCATION_SOURCE	  : Frame is for a script evaluated by EvalEx, from a
@@ -1325,8 +1285,6 @@ typedef struct ContLineLoc {
  */
 
 #define TCL_LOCATION_EVAL	(0) /* Location in a dynamic eval script. */
-#define TCL_LOCATION_EVAL_LIST	(1) /* Location in a dynamic eval script,
-				     * list-path. */
 #define TCL_LOCATION_BC		(2) /* Location in byte code. */
 #define TCL_LOCATION_PREBC	(3) /* Location in precompiled byte code, no
 				     * location. */
@@ -1714,6 +1672,9 @@ typedef struct Command {
  * CMD_HAS_EXEC_TRACES -	1 means that this command has at least one
  *				execution trace (as opposed to simple
  *				delete/rename traces) in its tracePtr list.
+ * CMD_COMPILES_EXPANDED -	1 means that this command has a compiler that
+ *				can handle expansion (provided it is not the
+ *				first word).
  * TCL_TRACE_RENAME -		A rename trace is in progress. Further
  *				recursive renames will not be traced.
  * TCL_TRACE_DELETE -		A delete trace is in progress. Further
@@ -1724,6 +1685,8 @@ typedef struct Command {
 #define CMD_IS_DELETED		    0x1
 #define CMD_TRACE_ACTIVE	    0x2
 #define CMD_HAS_EXEC_TRACES	    0x4
+#define CMD_COMPILES_EXPANDED	    0x8
+#define CMD_REDEF_IN_PROGRESS	    0x10
 
 /*
  *----------------------------------------------------------------
@@ -1778,7 +1741,7 @@ enum PkgPreferOptions {
  * definition there.
  * Some macros require knowledge of some fields in the struct in order to
  * avoid hitting the TSD unnecessarily. In order to facilitate this, a pointer
- * to the relevant fields is kept in the objCache field in struct Interp.
+ * to the relevant fields is kept in the allocCache field in struct Interp.
  *----------------------------------------------------------------
  */
 
@@ -1847,7 +1810,14 @@ typedef struct Interp {
     ClientData interpInfo;	/* Information used by tclInterp.c to keep
 				 * track of master/slave interps on a
 				 * per-interp basis. */
-    Tcl_HashTable unused2;	/* No longer used (was mathFuncTable) */
+    union {
+	void (*optimizer)(void *envPtr);
+	Tcl_HashTable unused2;	/* No longer used (was mathFuncTable). The
+				 * unused space in interp was repurposed for
+				 * pluggable bytecode optimizers. The core
+				 * contains one optimizer, which can be
+				 * selectively overriden by extensions. */
+    } extra;
 
     /*
      * Information related to procedures and variables. See tclProc.c and
@@ -2202,17 +2172,6 @@ typedef struct Interp {
     (iPtr)->flags &= (~(CANCELED | TCL_CANCEL_UNWIND))
 
 /*
- * General list of interpreters. Doubly linked for easier removal of items
- * deep in the list.
- */
-
-typedef struct InterpList {
-    Interp *interpPtr;
-    struct InterpList *prevPtr;
-    struct InterpList *nextPtr;
-} InterpList;
-
-/*
  * Macros for splicing into and out of doubly linked lists. They assume
  * existence of struct items 'prevPtr' and 'nextPtr'.
  *
@@ -2247,10 +2206,10 @@ typedef struct InterpList {
  *			other than these should be turned into errors.
  */
 
-#define TCL_ALLOW_EXCEPTIONS	4
-#define TCL_EVAL_FILE		2
-#define TCL_EVAL_CTX		8
-#define TCL_EVAL_REDIRECT	16
+#define TCL_ALLOW_EXCEPTIONS		0x04
+#define TCL_EVAL_FILE			0x02
+#define TCL_EVAL_SOURCE_IN_FRAME	0x10
+#define TCL_EVAL_NORESOLVE		0x20
 
 /*
  * Flag bits for Interp structures:
@@ -2318,35 +2277,6 @@ typedef struct InterpList {
 #define MAX_NESTING_DEPTH	1000
 
 /*
- * TIP#143 limit handler internal representation.
- */
-
-struct LimitHandler {
-    int flags;			/* The state of this particular handler. */
-    Tcl_LimitHandlerProc *handlerProc;
-				/* The handler callback. */
-    ClientData clientData;	/* Opaque argument to the handler callback. */
-    Tcl_LimitHandlerDeleteProc *deleteProc;
-				/* How to delete the clientData. */
-    LimitHandler *prevPtr;	/* Previous item in linked list of
-				 * handlers. */
-    LimitHandler *nextPtr;	/* Next item in linked list of handlers. */
-};
-
-/*
- * Values for the LimitHandler flags field.
- *	LIMIT_HANDLER_ACTIVE - Whether the handler is currently being
- *		processed; handlers are never to be entered reentrantly.
- *	LIMIT_HANDLER_DELETED - Whether the handler has been deleted. This
- *		should not normally be observed because when a handler is
- *		deleted it is also spliced out of the list of handlers, but
- *		even so we will be careful.
- */
-
-#define LIMIT_HANDLER_ACTIVE	0x01
-#define LIMIT_HANDLER_DELETED	0x02
-
-/*
  * The macro below is used to modify a "char" value (e.g. by casting it to an
  * unsigned character) so that it can be used safely with macros such as
  * isspace.
@@ -2487,6 +2417,14 @@ typedef struct List {
     (((listPtr)->typePtr == &tclListType) ? ListObjIsCanonical((listPtr)) : 0)
 
 /*
+ * Modes for collecting (or not) in the implementations of TclNRForeachCmd,
+ * TclNRLmapCmd and their compilations.
+ */
+
+#define TCL_EACH_KEEP_NONE  0	/* Discard iteration result like [foreach] */
+#define TCL_EACH_COLLECT    1	/* Collect iteration result like [lmap] */
+
+/*
  * Macros providing a faster path to integers: Tcl_GetLongFromObj everywhere,
  * Tcl_GetIntFromObj and TclGetIntForIndex on platforms where longs are ints.
  *
@@ -2515,6 +2453,30 @@ typedef struct List {
 #endif
 
 /*
+ * Macro used to save a function call for common uses of
+ * Tcl_GetWideIntFromObj(). The ANSI C "prototype" is:
+ *
+ * MODULE_SCOPE int TclGetWideIntFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
+ *			Tcl_WideInt *wideIntPtr);
+ */
+
+#ifdef TCL_WIDE_INT_IS_LONG
+#define TclGetWideIntFromObj(interp, objPtr, wideIntPtr) \
+    (((objPtr)->typePtr == &tclIntType)					\
+	? (*(wideIntPtr) = (Tcl_WideInt)				\
+		((objPtr)->internalRep.longValue), TCL_OK) :		\
+	Tcl_GetWideIntFromObj((interp), (objPtr), (wideIntPtr)))
+#else /* !TCL_WIDE_INT_IS_LONG */
+#define TclGetWideIntFromObj(interp, objPtr, wideIntPtr)		\
+    (((objPtr)->typePtr == &tclWideIntType)				\
+	? (*(wideIntPtr) = (objPtr)->internalRep.wideValue, TCL_OK) :	\
+    ((objPtr)->typePtr == &tclIntType)					\
+	? (*(wideIntPtr) = (Tcl_WideInt)				\
+		((objPtr)->internalRep.longValue), TCL_OK) :		\
+	Tcl_GetWideIntFromObj((interp), (objPtr), (wideIntPtr)))
+#endif /* TCL_WIDE_INT_IS_LONG */
+
+/*
  * Flag values for TclTraceDictPath().
  *
  * DICT_PATH_READ indicates that all entries on the path must exist but no
@@ -2556,6 +2518,8 @@ typedef struct List {
 
 #define TCL_FILESYSTEM_VERSION_2	((Tcl_FSVersion) 0x2)
 typedef ClientData (TclFSGetCwdProc2)(ClientData clientData);
+typedef int (Tcl_FSLoadFileProc2) (Tcl_Interp *interp, Tcl_Obj *pathPtr,
+	Tcl_LoadHandle *handlePtr, Tcl_FSUnloadFileProc **unloadProcPtr, int flags);
 
 /*
  * The following types are used for getting and storing platform-specific file
@@ -2700,6 +2664,8 @@ MODULE_SCOPE char *tclMemDumpFileName;
 MODULE_SCOPE TclPlatformType tclPlatform;
 MODULE_SCOPE Tcl_NotifierProcs tclNotifierHooks;
 
+MODULE_SCOPE Tcl_Encoding tclIdentityEncoding;
+
 /*
  * TIP #233 (Virtualized Time)
  * Data for the time hooks, if any.
@@ -2726,7 +2692,7 @@ MODULE_SCOPE const Tcl_ObjType tclProcBodyType;
 MODULE_SCOPE const Tcl_ObjType tclStringType;
 MODULE_SCOPE const Tcl_ObjType tclArraySearchType;
 MODULE_SCOPE const Tcl_ObjType tclEnsembleCmdType;
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 MODULE_SCOPE const Tcl_ObjType tclWideIntType;
 #endif
 MODULE_SCOPE const Tcl_ObjType tclRegexpType;
@@ -2778,6 +2744,7 @@ MODULE_SCOPE Tcl_ObjCmdProc TclNRExprObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRForObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRForeachCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRIfObjCmd;
+MODULE_SCOPE Tcl_ObjCmdProc TclNRLmapCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRSourceObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRSubstObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRSwitchObjCmd;
@@ -2786,14 +2753,21 @@ MODULE_SCOPE Tcl_ObjCmdProc TclNRUplevelObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRWhileObjCmd;
 
 MODULE_SCOPE Tcl_NRPostProc TclNRForIterCallback;
+MODULE_SCOPE Tcl_NRPostProc TclNRCoroutineActivateCallback;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRTailcallObjCmd;
+MODULE_SCOPE Tcl_NRPostProc TclNRTailcallEval;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRCoroutineObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRYieldObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRYieldmObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRYieldToObjCmd;
+MODULE_SCOPE Tcl_ObjCmdProc TclNRInvoke;
+
+MODULE_SCOPE void  TclSetTailcall(Tcl_Interp *interp, Tcl_Obj *tailcallPtr);
+MODULE_SCOPE void  TclPushTailcallPoint(Tcl_Interp *interp);
 
-MODULE_SCOPE void  TclSpliceTailcall(Tcl_Interp *interp,
-	               struct NRE_callback *tailcallPtr);
+/* These two can be considered for the public api */
+MODULE_SCOPE void  TclMarkTailcall(Tcl_Interp *interp);
+MODULE_SCOPE void  TclSkipTailcall(Tcl_Interp *interp);
 
 /*
  * This structure holds the data for the various iteration callbacks used to
@@ -2868,7 +2842,6 @@ MODULE_SCOPE void	TclAppendBytesToByteArray(Tcl_Obj *objPtr,
 			    const unsigned char *bytes, int len);
 MODULE_SCOPE int	TclNREvalCmd(Tcl_Interp *interp, Tcl_Obj *objPtr,
 			    int flags);
-MODULE_SCOPE void	TclPushTailcallPoint(Tcl_Interp *interp);
 MODULE_SCOPE void	TclAdvanceContinuations(int *line, int **next,
 			    int loc);
 MODULE_SCOPE void	TclAdvanceLines(int *line, const char *start,
@@ -2879,7 +2852,7 @@ MODULE_SCOPE void	TclArgumentRelease(Tcl_Interp *interp,
 			    Tcl_Obj *objv[], int objc);
 MODULE_SCOPE void	TclArgumentBCEnter(Tcl_Interp *interp,
 			    Tcl_Obj *objv[], int objc,
-			    void *codePtr, CmdFrame *cfPtr, int pc);
+			    void *codePtr, CmdFrame *cfPtr, int cmd, int pc);
 MODULE_SCOPE void	TclArgumentBCRelease(Tcl_Interp *interp,
 			    CmdFrame *cfPtr);
 MODULE_SCOPE void	TclArgumentGet(Tcl_Interp *interp, Tcl_Obj *obj,
@@ -2891,6 +2864,8 @@ MODULE_SCOPE int	TclByteArrayMatch(const unsigned char *string,
 			    int strLen, const unsigned char *pattern,
 			    int ptnLen, int flags);
 MODULE_SCOPE double	TclCeil(const mp_int *a);
+MODULE_SCOPE void	TclChannelPreserve(Tcl_Channel chan);
+MODULE_SCOPE void	TclChannelRelease(Tcl_Channel chan);
 MODULE_SCOPE int	TclCheckBadOctal(Tcl_Interp *interp,
 			    const char *value);
 MODULE_SCOPE int	TclChanCaughtErrorBypass(Tcl_Interp *interp,
@@ -2908,6 +2883,10 @@ MODULE_SCOPE void	TclContinuationsCopy(Tcl_Obj *objPtr,
 MODULE_SCOPE int	TclConvertElement(const char *src, int length,
 			    char *dst, int flags);
 MODULE_SCOPE void	TclDeleteNamespaceVars(Namespace *nsPtr);
+MODULE_SCOPE int	TclFindDictElement(Tcl_Interp *interp,
+			    const char *dict, int dictLength,
+			    const char **elementPtr, const char **nextPtr,
+			    int *sizePtr, int *literalPtr);
 /* TIP #280 - Modified token based evulation, with line information. */
 MODULE_SCOPE int	TclEvalEx(Tcl_Interp *interp, const char *script,
 			    int numBytes, int flags, int line,
@@ -2947,7 +2926,8 @@ MODULE_SCOPE void	TclFinalizeObjects(void);
 MODULE_SCOPE void	TclFinalizePreserve(void);
 MODULE_SCOPE void	TclFinalizeSynchronization(void);
 MODULE_SCOPE void	TclFinalizeThreadAlloc(void);
-MODULE_SCOPE void	TclFinalizeThreadData(void);
+MODULE_SCOPE void	TclFinalizeThreadAllocThread(void);
+MODULE_SCOPE void	TclFinalizeThreadData(int quick);
 MODULE_SCOPE void	TclFinalizeThreadObjects(void);
 MODULE_SCOPE double	TclFloor(const mp_int *a);
 MODULE_SCOPE void	TclFormatNaN(double value, char *buffer);
@@ -2970,7 +2950,10 @@ MODULE_SCOPE int	TclGetOpenModeEx(Tcl_Interp *interp,
 			    const char *modeString, int *seekFlagPtr,
 			    int *binaryPtr);
 MODULE_SCOPE Tcl_Obj *	TclGetProcessGlobalValue(ProcessGlobalValue *pgvPtr);
-MODULE_SCOPE const char *TclGetSrcInfoForCmd(Interp *iPtr, int *lenPtr);
+MODULE_SCOPE Tcl_Obj *	TclGetSourceFromFrame(CmdFrame *cfPtr, int objc,
+			    Tcl_Obj *const objv[]);
+MODULE_SCOPE char *	TclGetStringStorage(Tcl_Obj *objPtr,
+			    unsigned int *sizePtr);
 MODULE_SCOPE int	TclGlob(Tcl_Interp *interp, char *pattern,
 			    Tcl_Obj *unquotedPrefix, int globFlags,
 			    Tcl_GlobTypeData *types);
@@ -3002,8 +2985,8 @@ MODULE_SCOPE void	TclInitNotifier(void);
 MODULE_SCOPE void	TclInitObjSubsystem(void);
 MODULE_SCOPE void	TclInitSubsystems(void);
 MODULE_SCOPE int	TclInterpReady(Tcl_Interp *interp);
-MODULE_SCOPE int	TclIsLocalScalar(const char *src, int len);
 MODULE_SCOPE int	TclIsSpaceProc(char byte);
+MODULE_SCOPE int	TclIsBareword(char byte);
 MODULE_SCOPE Tcl_Obj *	TclJoinPath(int elements, Tcl_Obj * const objv[]);
 MODULE_SCOPE int	TclJoinThread(Tcl_ThreadId id, int *result);
 MODULE_SCOPE void	TclLimitRemoveAllHandlers(Tcl_Interp *interp);
@@ -3073,12 +3056,6 @@ MODULE_SCOPE void	TclpInitLibraryPath(char **valuePtr,
 MODULE_SCOPE void	TclpInitLock(void);
 MODULE_SCOPE void	TclpInitPlatform(void);
 MODULE_SCOPE void	TclpInitUnlock(void);
-MODULE_SCOPE int	TclpLoadFile(Tcl_Interp *interp, Tcl_Obj *pathPtr,
-			    const char *sym1, const char *sym2,
-			    Tcl_PackageInitProc **proc1Ptr,
-			    Tcl_PackageInitProc **proc2Ptr,
-			    ClientData *clientDataPtr,
-			    Tcl_FSUnloadFileProc **unloadProcPtr);
 MODULE_SCOPE Tcl_Obj *	TclpObjListVolumes(void);
 MODULE_SCOPE void	TclpMasterLock(void);
 MODULE_SCOPE void	TclpMasterUnlock(void);
@@ -3118,13 +3095,15 @@ MODULE_SCOPE void	TclRememberJoinableThread(Tcl_ThreadId id);
 MODULE_SCOPE void	TclRememberMutex(Tcl_Mutex *mutex);
 MODULE_SCOPE void	TclRemoveScriptLimitCallbacks(Tcl_Interp *interp);
 MODULE_SCOPE int	TclReToGlob(Tcl_Interp *interp, const char *reStr,
-			    int reStrLen, Tcl_DString *dsPtr, int *flagsPtr);
+			    int reStrLen, Tcl_DString *dsPtr, int *flagsPtr,
+			    int *quantifiersFoundPtr);
 MODULE_SCOPE int	TclScanElement(const char *string, int length,
 			    int *flagPtr);
 MODULE_SCOPE void	TclSetBgErrorHandler(Tcl_Interp *interp,
 			    Tcl_Obj *cmdPrefix);
 MODULE_SCOPE void	TclSetBignumIntRep(Tcl_Obj *objPtr,
 			    mp_int *bignumValue);
+MODULE_SCOPE int	TclSetBooleanFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr);
 MODULE_SCOPE void	TclSetCmdNameObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
 			    Command *cmdPtr);
 MODULE_SCOPE void	TclSetDuplicateObj(Tcl_Obj *dupPtr, Tcl_Obj *objPtr);
@@ -3153,17 +3132,18 @@ MODULE_SCOPE int	TclTrimLeft(const char *bytes, int numBytes,
 			    const char *trim, int numTrim);
 MODULE_SCOPE int	TclTrimRight(const char *bytes, int numBytes,
 			    const char *trim, int numTrim);
+MODULE_SCOPE int	TclUtfCasecmp(const char *cs, const char *ct);
 MODULE_SCOPE Tcl_Obj *	TclpNativeToNormalized(ClientData clientData);
 MODULE_SCOPE Tcl_Obj *	TclpFilesystemPathType(Tcl_Obj *pathPtr);
 MODULE_SCOPE int	TclpDlopen(Tcl_Interp *interp, Tcl_Obj *pathPtr,
 			    Tcl_LoadHandle *loadHandle,
-			    Tcl_FSUnloadFileProc **unloadProcPtr);
+			    Tcl_FSUnloadFileProc **unloadProcPtr, int flags);
 MODULE_SCOPE int	TclpUtime(Tcl_Obj *pathPtr, struct utimbuf *tval);
 #ifdef TCL_LOAD_FROM_MEMORY
 MODULE_SCOPE void *	TclpLoadMemoryGetBuffer(Tcl_Interp *interp, int size);
 MODULE_SCOPE int	TclpLoadMemory(Tcl_Interp *interp, void *buffer,
 			    int size, int codeSize, Tcl_LoadHandle *loadHandle,
-			    Tcl_FSUnloadFileProc **unloadProcPtr);
+			    Tcl_FSUnloadFileProc **unloadProcPtr, int flags);
 #endif
 MODULE_SCOPE void	TclInitThreadStorage(void);
 MODULE_SCOPE void	TclFinalizeThreadDataThread(void);
@@ -3346,6 +3326,9 @@ MODULE_SCOPE int	Tcl_LlengthObjCmd(ClientData clientData,
 MODULE_SCOPE int	Tcl_ListObjCmd(ClientData clientData,
 			    Tcl_Interp *interp, int objc,
 			    Tcl_Obj *const objv[]);
+MODULE_SCOPE int	Tcl_LmapObjCmd(ClientData clientData,
+			    Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const objv[]);
 MODULE_SCOPE int	Tcl_LoadObjCmd(ClientData clientData,
 			    Tcl_Interp *interp, int objc,
 			    Tcl_Obj *const objv[]);
@@ -3481,18 +3464,36 @@ MODULE_SCOPE int	Tcl_WhileObjCmd(ClientData clientData,
 MODULE_SCOPE int	TclCompileAppendCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileArrayExistsCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileArraySetCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileArrayUnsetCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileBreakCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileCatchCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileConcatCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileContinueCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileDictAppendCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileDictCreateCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileDictExistsCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileDictForCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
@@ -3505,9 +3506,18 @@ MODULE_SCOPE int	TclCompileDictIncrCmd(Tcl_Interp *interp,
 MODULE_SCOPE int	TclCompileDictLappendCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileDictMapCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileDictMergeCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileDictSetCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileDictUnsetCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileDictUpdateCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
@@ -3529,15 +3539,36 @@ MODULE_SCOPE int	TclCompileForCmd(Tcl_Interp *interp,
 MODULE_SCOPE int	TclCompileForeachCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileFormatCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileGlobalCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileIfCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileInfoCommandsCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileInfoCoroutineCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileInfoExistsCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileInfoLevelCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileInfoObjectClassCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileInfoObjectIsACmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileInfoObjectNamespaceCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileIncrCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
@@ -3550,12 +3581,18 @@ MODULE_SCOPE int	TclCompileLassignCmd(Tcl_Interp *interp,
 MODULE_SCOPE int	TclCompileLindexCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileLinsertCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileListCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileLlengthCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileLmapCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileLrangeCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
@@ -3565,42 +3602,114 @@ MODULE_SCOPE int	TclCompileLreplaceCmd(Tcl_Interp *interp,
 MODULE_SCOPE int	TclCompileLsetCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileNamespaceCodeCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileNamespaceCurrentCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileNamespaceOriginCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileNamespaceQualifiersCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileNamespaceTailCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileNamespaceUpvarCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileNamespaceWhichCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileNoOp(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileObjectNextCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileObjectNextToCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileObjectSelfCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileRegexpCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileRegsubCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileReturnCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileSetCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringCatCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileStringCmpCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileStringEqualCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringFirstCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileStringIndexCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringIsCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringLastCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileStringLenCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringMapCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileStringMatchCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringRangeCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringReplaceCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringToLowerCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringToTitleCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringToUpperCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringTrimCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringTrimLCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileStringTrimRCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileSubstCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileSwitchCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileTailcallCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 MODULE_SCOPE int	TclCompileThrowCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
@@ -3619,6 +3728,48 @@ MODULE_SCOPE int	TclCompileVariableCmd(Tcl_Interp *interp,
 MODULE_SCOPE int	TclCompileWhileCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Command *cmdPtr,
 			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileYieldCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileYieldToCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasic0ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasic1ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasic2ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasic3ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasic0Or1ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasic1Or2ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasic2Or3ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasic0To2ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasic1To3ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasicMin0ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasicMin1ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
+MODULE_SCOPE int	TclCompileBasicMin2ArgCmd(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, Command *cmdPtr,
+			    struct CompileEnv *envPtr);
 
 MODULE_SCOPE int	TclInvertOpCmd(ClientData clientData,
 			    Tcl_Interp *interp, int objc,
@@ -3796,6 +3947,8 @@ MODULE_SCOPE int	TclPtrUnsetVar(Tcl_Interp *interp, Var *varPtr,
 			    Tcl_Obj *part2Ptr, const int flags,
 			    int index);
 MODULE_SCOPE void	TclInvalidateNsPath(Namespace *nsPtr);
+MODULE_SCOPE void	TclFindArrayPtrElements(Var *arrayPtr,
+			    Tcl_HashTable *tablePtr);
 
 /*
  * The new extended interface to the variable traces.
@@ -3911,12 +4064,13 @@ typedef const char *TclDTraceStr;
  */
 
 #  define TclAllocObjStorageEx(interp, objPtr) \
-	(objPtr) = (Tcl_Obj *) Tcl_Alloc(sizeof(Tcl_Obj))
+	(objPtr) = (Tcl_Obj *) ckalloc(sizeof(Tcl_Obj))
 
 #  define TclFreeObjStorageEx(interp, objPtr) \
 	ckfree((char *) (objPtr))
 
 #undef USE_THREAD_ALLOC
+#undef USE_TCLALLOC
 #elif defined(TCL_THREADS) && defined(USE_THREAD_ALLOC)
 
 /*
@@ -3952,7 +4106,7 @@ MODULE_SCOPE void	TclpFreeAllocCache(void *);
 	    (objPtr) = TclThreadAllocObj();				\
 	} else {							\
 	    (objPtr) = cachePtr->firstObjPtr;				\
-	    cachePtr->firstObjPtr = (objPtr)->internalRep.otherValuePtr; \
+	    cachePtr->firstObjPtr = (objPtr)->internalRep.twoPtrValue.ptr1; \
 	    --cachePtr->numObjects;					\
 	}								\
     } while (0)
@@ -3962,10 +4116,11 @@ MODULE_SCOPE void	TclpFreeAllocCache(void *);
 	AllocCache *cachePtr;						\
 	if (((interp) == NULL) ||					\
 		((cachePtr = ((Interp *)(interp))->allocCache),		\
-			(cachePtr->numObjects >= ALLOC_NOBJHIGH))) {	\
+			((cachePtr->numObjects == 0) ||			\
+			(cachePtr->numObjects >= ALLOC_NOBJHIGH)))) {	\
 	    TclThreadFreeObj(objPtr);					\
 	} else {							\
-	    (objPtr)->internalRep.otherValuePtr = cachePtr->firstObjPtr; \
+	    (objPtr)->internalRep.twoPtrValue.ptr1 = cachePtr->firstObjPtr; \
 	    cachePtr->firstObjPtr = objPtr;				\
 	    ++cachePtr->numObjects;					\
 	}								\
@@ -3993,14 +4148,14 @@ MODULE_SCOPE Tcl_Mutex	tclObjMutex;
 	}								\
 	(objPtr) = tclFreeObjList;					\
 	tclFreeObjList = (Tcl_Obj *)					\
-		tclFreeObjList->internalRep.otherValuePtr;		\
+		tclFreeObjList->internalRep.twoPtrValue.ptr1;		\
 	Tcl_MutexUnlock(&tclObjMutex);					\
     } while (0)
 
 #  define TclFreeObjStorageEx(interp, objPtr) \
     do {							       \
 	Tcl_MutexLock(&tclObjMutex);				       \
-	(objPtr)->internalRep.otherValuePtr = (void *) tclFreeObjList; \
+	(objPtr)->internalRep.twoPtrValue.ptr1 = (void *) tclFreeObjList; \
 	tclFreeObjList = (objPtr);				       \
 	Tcl_MutexUnlock(&tclObjMutex);				       \
     } while (0)
@@ -4335,7 +4490,7 @@ MODULE_SCOPE Tcl_PackageInitProc Procbodytest_SafeInit;
  *----------------------------------------------------------------
  */
 
-#define TclSetIntObj(objPtr, i) \
+#define TclSetLongObj(objPtr, i) \
     do {						\
 	TclInvalidateStringRep(objPtr);			\
 	TclFreeIntRep(objPtr);				\
@@ -4343,8 +4498,8 @@ MODULE_SCOPE Tcl_PackageInitProc Procbodytest_SafeInit;
 	(objPtr)->typePtr = &tclIntType;		\
     } while (0)
 
-#define TclSetLongObj(objPtr, l) \
-    TclSetIntObj((objPtr), (l))
+#define TclSetIntObj(objPtr, l) \
+    TclSetLongObj(objPtr, l)
 
 /*
  * NOTE: There is to be no such thing as a "pure" boolean. Boolean values set
@@ -4354,9 +4509,9 @@ MODULE_SCOPE Tcl_PackageInitProc Procbodytest_SafeInit;
  */
 
 #define TclSetBooleanObj(objPtr, b) \
-    TclSetIntObj((objPtr), ((b)? 1 : 0));
+    TclSetLongObj(objPtr, (b)!=0);
 
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 #define TclSetWideIntObj(objPtr, w) \
     do {							\
 	TclInvalidateStringRep(objPtr);				\
@@ -4392,7 +4547,7 @@ MODULE_SCOPE Tcl_PackageInitProc Procbodytest_SafeInit;
  */
 
 #ifndef TCL_MEM_DEBUG
-#define TclNewIntObj(objPtr, i) \
+#define TclNewLongObj(objPtr, i) \
     do {						\
 	TclIncrObjsAllocated();				\
 	TclAllocObjStorage(objPtr);			\
@@ -4403,15 +4558,15 @@ MODULE_SCOPE Tcl_PackageInitProc Procbodytest_SafeInit;
 	TCL_DTRACE_OBJ_CREATE(objPtr);			\
     } while (0)
 
-#define TclNewLongObj(objPtr, l) \
-    TclNewIntObj((objPtr), (l))
+#define TclNewIntObj(objPtr, l) \
+    TclNewLongObj(objPtr, l)
 
 /*
  * NOTE: There is to be no such thing as a "pure" boolean.
  * See comment above TclSetBooleanObj macro above.
  */
 #define TclNewBooleanObj(objPtr, b) \
-    TclNewIntObj((objPtr), ((b)? 1 : 0))
+    TclNewLongObj((objPtr), (b)!=0)
 
 #define TclNewDoubleObj(objPtr, d) \
     do {							\
@@ -4674,35 +4829,6 @@ typedef struct NRE_callback {
 	TOP_CB(interp) = callbackPtr;					\
     } while (0)
 
-#define TclNRDeferCallback(interp,postProcPtr,data0,data1,data2,data3) \
-    do {								\
-	NRE_callback *callbackPtr;					\
-	TCLNR_ALLOC((interp), (callbackPtr));				\
-	callbackPtr->procPtr = (postProcPtr);				\
-	callbackPtr->data[0] = (ClientData)(data0);			\
-	callbackPtr->data[1] = (ClientData)(data1);			\
-	callbackPtr->data[2] = (ClientData)(data2);			\
-	callbackPtr->data[3] = (ClientData)(data3);			\
-	callbackPtr->nextPtr = ((Interp *)interp)->deferredCallbacks;	\
-	((Interp *)interp)->deferredCallbacks = callbackPtr;		\
-    } while (0)
-
-#define TclNRSpliceCallbacks(interp, topPtr) \
-    do {					\
-	NRE_callback *bottomPtr = topPtr;	\
-	while (bottomPtr->nextPtr) {		\
-	    bottomPtr = bottomPtr->nextPtr;	\
-	}					\
-	bottomPtr->nextPtr = TOP_CB(interp);	\
-	TOP_CB(interp) = topPtr;		\
-    } while (0)
-
-#define TclNRSpliceDeferred(interp)					\
-    if (((Interp *)interp)->deferredCallbacks) {			\
-	TclNRSpliceCallbacks(interp, ((Interp *)interp)->deferredCallbacks); \
-	((Interp *)interp)->deferredCallbacks = NULL;			\
-    }
-
 #if NRE_USE_SMALL_ALLOC
 #define TCLNR_ALLOC(interp, ptr) \
     TclSmallAllocEx(interp, sizeof(NRE_callback), (ptr))
diff --git a/generic/tclIntDecls.h b/generic/tclIntDecls.h
index d01d10a..f95f999 100644
--- a/generic/tclIntDecls.h
+++ b/generic/tclIntDecls.h
@@ -29,19 +29,20 @@
 #endif
 
 /* [Bug #803489] Tcl_FindNamespace problem in the Stubs table */
-#undef Tcl_AppendExportList
 #undef Tcl_CreateNamespace
 #undef Tcl_DeleteNamespace
+#undef Tcl_AppendExportList
 #undef Tcl_Export
-#undef Tcl_FindCommand
-#undef Tcl_FindNamespace
-#undef Tcl_FindNamespaceVar
+#undef Tcl_Import
 #undef Tcl_ForgetImport
-#undef Tcl_GetCommandFromObj
-#undef Tcl_GetCommandFullName
 #undef Tcl_GetCurrentNamespace
 #undef Tcl_GetGlobalNamespace
-#undef Tcl_Import
+#undef Tcl_FindNamespace
+#undef Tcl_FindCommand
+#undef Tcl_GetCommandFromObj
+#undef Tcl_GetCommandFullName
+#undef Tcl_SetStartupScript
+#undef Tcl_GetStartupScript
 
 /*
  * WARNING: This file is automatically generated by the tools/genStubs.tcl
@@ -51,6 +52,10 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
@@ -395,8 +400,10 @@ EXTERN void		TclRegError(Tcl_Interp *interp, const char *msg,
 /* 157 */
 EXTERN Var *		TclVarTraceExists(Tcl_Interp *interp,
 				const char *varName);
-/* Slot 158 is reserved */
-/* Slot 159 is reserved */
+/* 158 */
+EXTERN void		TclSetStartupScriptFileName(const char *filename);
+/* 159 */
+EXTERN const char *	TclGetStartupScriptFileName(void);
 /* Slot 160 is reserved */
 /* 161 */
 EXTERN int		TclChannelTransform(Tcl_Interp *interp,
@@ -414,8 +421,10 @@ EXTERN void		TclpSetInitialEncodings(void);
 EXTERN int		TclListObjSetElement(Tcl_Interp *interp,
 				Tcl_Obj *listPtr, int index,
 				Tcl_Obj *valuePtr);
-/* Slot 167 is reserved */
-/* Slot 168 is reserved */
+/* 167 */
+EXTERN void		TclSetStartupScriptPath(Tcl_Obj *pathPtr);
+/* 168 */
+EXTERN Tcl_Obj *	TclGetStartupScriptPath(void);
 /* 169 */
 EXTERN int		TclpUtfNcmp2(const char *s1, const char *s2,
 				unsigned long n);
@@ -447,8 +456,11 @@ EXTERN void		TclCleanupVar(Var *varPtr, Var *arrayPtr);
 EXTERN void		TclVarErrMsg(Tcl_Interp *interp, const char *part1,
 				const char *part2, const char *operation,
 				const char *reason);
-/* Slot 178 is reserved */
-/* Slot 179 is reserved */
+/* 178 */
+EXTERN void		Tcl_SetStartupScript(Tcl_Obj *pathPtr,
+				const char *encodingName);
+/* 179 */
+EXTERN Tcl_Obj *	Tcl_GetStartupScript(const char **encodingNamePtr);
 /* Slot 180 is reserved */
 /* Slot 181 is reserved */
 /* 182 */
@@ -557,7 +569,8 @@ EXTERN Var *		TclVarHashCreateVar(TclVarHashTable *tablePtr,
 /* 235 */
 EXTERN void		TclInitVarHashTable(TclVarHashTable *tablePtr,
 				Namespace *nsPtr);
-/* Slot 236 is reserved */
+/* 236 */
+EXTERN void		TclBackgroundException(Tcl_Interp *interp, int code);
 /* 237 */
 EXTERN int		TclResetCancellation(Tcl_Interp *interp, int force);
 /* 238 */
@@ -601,10 +614,13 @@ EXTERN char *		TclDoubleDigits(double dv, int ndigits, int flags,
 /* 250 */
 EXTERN void		TclSetSlaveCancelFlags(Tcl_Interp *interp, int flags,
 				int force);
+/* 251 */
+EXTERN int		TclRegisterLiteral(void *envPtr, char *bytes,
+				int length, int flags);
 
 typedef struct TclIntStubs {
     int magic;
-    const struct TclIntStubHooks *hooks;
+    void *hooks;
 
     void (*reserved0)(void);
     void (*reserved1)(void);
@@ -764,8 +780,8 @@ typedef struct TclIntStubs {
     void (*reserved155)(void);
     void (*tclRegError) (Tcl_Interp *interp, const char *msg, int status); /* 156 */
     Var * (*tclVarTraceExists) (Tcl_Interp *interp, const char *varName); /* 157 */
-    void (*reserved158)(void);
-    void (*reserved159)(void);
+    void (*tclSetStartupScriptFileName) (const char *filename); /* 158 */
+    const char * (*tclGetStartupScriptFileName) (void); /* 159 */
     void (*reserved160)(void);
     int (*tclChannelTransform) (Tcl_Interp *interp, Tcl_Channel chan, Tcl_Obj *cmdObjPtr); /* 161 */
     void (*tclChannelEventScriptInvoker) (ClientData clientData, int flags); /* 162 */
@@ -773,8 +789,8 @@ typedef struct TclIntStubs {
     void (*tclExpandCodeArray) (void *envPtr); /* 164 */
     void (*tclpSetInitialEncodings) (void); /* 165 */
     int (*tclListObjSetElement) (Tcl_Interp *interp, Tcl_Obj *listPtr, int index, Tcl_Obj *valuePtr); /* 166 */
-    void (*reserved167)(void);
-    void (*reserved168)(void);
+    void (*tclSetStartupScriptPath) (Tcl_Obj *pathPtr); /* 167 */
+    Tcl_Obj * (*tclGetStartupScriptPath) (void); /* 168 */
     int (*tclpUtfNcmp2) (const char *s1, const char *s2, unsigned long n); /* 169 */
     int (*tclCheckInterpTraces) (Tcl_Interp *interp, const char *command, int numChars, Command *cmdPtr, int result, int traceFlags, int objc, Tcl_Obj *const objv[]); /* 170 */
     int (*tclCheckExecutionTraces) (Tcl_Interp *interp, const char *command, int numChars, Command *cmdPtr, int result, int traceFlags, int objc, Tcl_Obj *const objv[]); /* 171 */
@@ -784,8 +800,8 @@ typedef struct TclIntStubs {
     int (*tclCallVarTraces) (Interp *iPtr, Var *arrayPtr, Var *varPtr, const char *part1, const char *part2, int flags, int leaveErrMsg); /* 175 */
     void (*tclCleanupVar) (Var *varPtr, Var *arrayPtr); /* 176 */
     void (*tclVarErrMsg) (Tcl_Interp *interp, const char *part1, const char *part2, const char *operation, const char *reason); /* 177 */
-    void (*reserved178)(void);
-    void (*reserved179)(void);
+    void (*tcl_SetStartupScript) (Tcl_Obj *pathPtr, const char *encodingName); /* 178 */
+    Tcl_Obj * (*tcl_GetStartupScript) (const char **encodingNamePtr); /* 179 */
     void (*reserved180)(void);
     void (*reserved181)(void);
     struct tm * (*tclpLocaltime) (const time_t *clock); /* 182 */
@@ -842,7 +858,7 @@ typedef struct TclIntStubs {
     void (*tclGetSrcInfoForPc) (CmdFrame *contextPtr); /* 233 */
     Var * (*tclVarHashCreateVar) (TclVarHashTable *tablePtr, const char *key, int *newPtr); /* 234 */
     void (*tclInitVarHashTable) (TclVarHashTable *tablePtr, Namespace *nsPtr); /* 235 */
-    void (*reserved236)(void);
+    void (*tclBackgroundException) (Tcl_Interp *interp, int code); /* 236 */
     int (*tclResetCancellation) (Tcl_Interp *interp, int force); /* 237 */
     int (*tclNRInterpProc) (ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]); /* 238 */
     int (*tclNRInterpProcCore) (Tcl_Interp *interp, Tcl_Obj *procNameObj, int skip, ProcErrorProc *errorProc); /* 239 */
@@ -857,12 +873,11 @@ typedef struct TclIntStubs {
     int (*tclCopyChannel) (Tcl_Interp *interp, Tcl_Channel inChan, Tcl_Channel outChan, Tcl_WideInt toRead, Tcl_Obj *cmdPtr); /* 248 */
     char * (*tclDoubleDigits) (double dv, int ndigits, int flags, int *decpt, int *signum, char **endPtr); /* 249 */
     void (*tclSetSlaveCancelFlags) (Tcl_Interp *interp, int flags, int force); /* 250 */
+    int (*tclRegisterLiteral) (void *envPtr, char *bytes, int length, int flags); /* 251 */
 } TclIntStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern const TclIntStubs *tclIntStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
@@ -1130,8 +1145,10 @@ extern const TclIntStubs *tclIntStubsPtr;
 	(tclIntStubsPtr->tclRegError) /* 156 */
 #define TclVarTraceExists \
 	(tclIntStubsPtr->tclVarTraceExists) /* 157 */
-/* Slot 158 is reserved */
-/* Slot 159 is reserved */
+#define TclSetStartupScriptFileName \
+	(tclIntStubsPtr->tclSetStartupScriptFileName) /* 158 */
+#define TclGetStartupScriptFileName \
+	(tclIntStubsPtr->tclGetStartupScriptFileName) /* 159 */
 /* Slot 160 is reserved */
 #define TclChannelTransform \
 	(tclIntStubsPtr->tclChannelTransform) /* 161 */
@@ -1145,8 +1162,10 @@ extern const TclIntStubs *tclIntStubsPtr;
 	(tclIntStubsPtr->tclpSetInitialEncodings) /* 165 */
 #define TclListObjSetElement \
 	(tclIntStubsPtr->tclListObjSetElement) /* 166 */
-/* Slot 167 is reserved */
-/* Slot 168 is reserved */
+#define TclSetStartupScriptPath \
+	(tclIntStubsPtr->tclSetStartupScriptPath) /* 167 */
+#define TclGetStartupScriptPath \
+	(tclIntStubsPtr->tclGetStartupScriptPath) /* 168 */
 #define TclpUtfNcmp2 \
 	(tclIntStubsPtr->tclpUtfNcmp2) /* 169 */
 #define TclCheckInterpTraces \
@@ -1164,8 +1183,10 @@ extern const TclIntStubs *tclIntStubsPtr;
 	(tclIntStubsPtr->tclCleanupVar) /* 176 */
 #define TclVarErrMsg \
 	(tclIntStubsPtr->tclVarErrMsg) /* 177 */
-/* Slot 178 is reserved */
-/* Slot 179 is reserved */
+#define Tcl_SetStartupScript \
+	(tclIntStubsPtr->tcl_SetStartupScript) /* 178 */
+#define Tcl_GetStartupScript \
+	(tclIntStubsPtr->tcl_GetStartupScript) /* 179 */
 /* Slot 180 is reserved */
 /* Slot 181 is reserved */
 #define TclpLocaltime \
@@ -1252,7 +1273,8 @@ extern const TclIntStubs *tclIntStubsPtr;
 	(tclIntStubsPtr->tclVarHashCreateVar) /* 234 */
 #define TclInitVarHashTable \
 	(tclIntStubsPtr->tclInitVarHashTable) /* 235 */
-/* Slot 236 is reserved */
+#define TclBackgroundException \
+	(tclIntStubsPtr->tclBackgroundException) /* 236 */
 #define TclResetCancellation \
 	(tclIntStubsPtr->tclResetCancellation) /* 237 */
 #define TclNRInterpProc \
@@ -1281,6 +1303,8 @@ extern const TclIntStubs *tclIntStubsPtr;
 	(tclIntStubsPtr->tclDoubleDigits) /* 249 */
 #define TclSetSlaveCancelFlags \
 	(tclIntStubsPtr->tclSetSlaveCancelFlags) /* 250 */
+#define TclRegisterLiteral \
+	(tclIntStubsPtr->tclRegisterLiteral) /* 251 */
 
 #endif /* defined(USE_TCL_STUBS) */
 
@@ -1289,4 +1313,58 @@ extern const TclIntStubs *tclIntStubsPtr;
 #undef TCL_STORAGE_CLASS
 #define TCL_STORAGE_CLASS DLLIMPORT
 
+#undef TclGetStartupScriptFileName
+#undef TclSetStartupScriptFileName
+#undef TclGetStartupScriptPath
+#undef TclSetStartupScriptPath
+#undef TclBackgroundException
+
+#if defined(USE_TCL_STUBS) && defined(TCL_NO_DEPRECATED)
+#   undef Tcl_SetStartupScript
+#   define Tcl_SetStartupScript \
+	    (tclStubsPtr->tcl_SetStartupScript) /* 622 */
+#   undef Tcl_GetStartupScript
+#   define Tcl_GetStartupScript \
+	    (tclStubsPtr->tcl_GetStartupScript) /* 623 */
+#   undef Tcl_CreateNamespace
+#   define Tcl_CreateNamespace \
+	   (tclStubsPtr->tcl_CreateNamespace) /* 506 */
+#   undef Tcl_DeleteNamespace
+#   define Tcl_DeleteNamespace \
+	   (tclStubsPtr->tcl_DeleteNamespace) /* 507 */
+#   undef Tcl_AppendExportList
+#   define Tcl_AppendExportList \
+	   (tclStubsPtr->tcl_AppendExportList) /* 508 */
+#   undef Tcl_Export
+#   define Tcl_Export \
+	   (tclStubsPtr->tcl_Export) /* 509 */
+#   undef Tcl_Import
+#   define Tcl_Import \
+	   (tclStubsPtr->tcl_Import) /* 510 */
+#   undef Tcl_ForgetImport
+#   define Tcl_ForgetImport \
+	   (tclStubsPtr->tcl_ForgetImport) /* 511 */
+#   undef Tcl_GetCurrentNamespace
+#   define Tcl_GetCurrentNamespace \
+	   (tclStubsPtr->tcl_GetCurrentNamespace) /* 512 */
+#   undef Tcl_GetGlobalNamespace
+#   define Tcl_GetGlobalNamespace \
+	   (tclStubsPtr->tcl_GetGlobalNamespace) /* 513 */
+#   undef Tcl_FindNamespace
+#   define Tcl_FindNamespace \
+	   (tclStubsPtr->tcl_FindNamespace) /* 514 */
+#   undef Tcl_FindCommand
+#   define Tcl_FindCommand \
+	   (tclStubsPtr->tcl_FindCommand) /* 515 */
+#   undef Tcl_GetCommandFromObj
+#   define Tcl_GetCommandFromObj \
+	   (tclStubsPtr->tcl_GetCommandFromObj) /* 516 */
+#   undef Tcl_GetCommandFullName
+#   define Tcl_GetCommandFullName \
+	   (tclStubsPtr->tcl_GetCommandFullName) /* 517 */
+#endif
+
+#undef TclCopyChannelOld
+#undef TclSockMinimumBuffersOld
+
 #endif /* _TCLINTDECLS */
diff --git a/generic/tclIntPlatDecls.h b/generic/tclIntPlatDecls.h
index 36cb918..ac06787 100644
--- a/generic/tclIntPlatDecls.h
+++ b/generic/tclIntPlatDecls.h
@@ -13,7 +13,7 @@
 #ifndef _TCLINTPLATDECLS
 #define _TCLINTPLATDECLS
 
-#ifdef __WIN32__
+#ifdef _WIN32
 #   define Tcl_DirEntry void
 #   define DIR void
 #endif
@@ -37,11 +37,15 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
 
-#if !defined(__WIN32__) && !defined(__CYGWIN__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(__CYGWIN__) && !defined(MAC_OSX_TCL) /* UNIX */
 /* 0 */
 EXTERN void		TclGetAndDetachPids(Tcl_Interp *interp,
 				Tcl_Channel chan);
@@ -95,8 +99,12 @@ EXTERN int		TclUnixCopyFile(const char *src, const char *dst,
 /* Slot 28 is reserved */
 /* 29 */
 EXTERN int		TclWinCPUID(unsigned int index, unsigned int *regs);
+/* 30 */
+EXTERN int		TclUnixOpenTemporaryFile(Tcl_Obj *dirObj,
+				Tcl_Obj *basenameObj, Tcl_Obj *extensionObj,
+				Tcl_Obj *resultingNameObj);
 #endif /* UNIX */
-#if defined(__WIN32__) || defined(__CYGWIN__) /* WIN */
+#if defined(_WIN32) || defined(__CYGWIN__) /* WIN */
 /* 0 */
 EXTERN void		TclWinConvertError(DWORD errCode);
 /* 1 */
@@ -166,6 +174,10 @@ EXTERN void		TclWinFlushDirtyChannels(void);
 EXTERN void		TclWinResetInterfaces(void);
 /* 29 */
 EXTERN int		TclWinCPUID(unsigned int index, unsigned int *regs);
+/* 30 */
+EXTERN int		TclUnixOpenTemporaryFile(Tcl_Obj *dirObj,
+				Tcl_Obj *basenameObj, Tcl_Obj *extensionObj,
+				Tcl_Obj *resultingNameObj);
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
 /* 0 */
@@ -236,13 +248,17 @@ EXTERN void		TclMacOSXNotifierAddRunLoopMode(
 /* Slot 28 is reserved */
 /* 29 */
 EXTERN int		TclWinCPUID(unsigned int index, unsigned int *regs);
+/* 30 */
+EXTERN int		TclUnixOpenTemporaryFile(Tcl_Obj *dirObj,
+				Tcl_Obj *basenameObj, Tcl_Obj *extensionObj,
+				Tcl_Obj *resultingNameObj);
 #endif /* MACOSX */
 
 typedef struct TclIntPlatStubs {
     int magic;
-    const struct TclIntPlatStubHooks *hooks;
+    void *hooks;
 
-#if !defined(__WIN32__) && !defined(__CYGWIN__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(__CYGWIN__) && !defined(MAC_OSX_TCL) /* UNIX */
     void (*tclGetAndDetachPids) (Tcl_Interp *interp, Tcl_Channel chan); /* 0 */
     int (*tclpCloseFile) (TclFile file); /* 1 */
     Tcl_Channel (*tclpCreateCommandChannel) (TclFile readFile, TclFile writeFile, TclFile errorFile, int numPids, Tcl_Pid *pidPtr); /* 2 */
@@ -273,8 +289,9 @@ typedef struct TclIntPlatStubs {
     void (*reserved27)(void);
     void (*reserved28)(void);
     int (*tclWinCPUID) (unsigned int index, unsigned int *regs); /* 29 */
+    int (*tclUnixOpenTemporaryFile) (Tcl_Obj *dirObj, Tcl_Obj *basenameObj, Tcl_Obj *extensionObj, Tcl_Obj *resultingNameObj); /* 30 */
 #endif /* UNIX */
-#if defined(__WIN32__) || defined(__CYGWIN__) /* WIN */
+#if defined(_WIN32) || defined(__CYGWIN__) /* WIN */
     void (*tclWinConvertError) (DWORD errCode); /* 0 */
     void (*tclWinConvertWSAError) (DWORD errCode); /* 1 */
     struct servent * (*tclWinGetServByName) (const char *nm, const char *proto); /* 2 */
@@ -305,6 +322,7 @@ typedef struct TclIntPlatStubs {
     void (*tclWinFlushDirtyChannels) (void); /* 27 */
     void (*tclWinResetInterfaces) (void); /* 28 */
     int (*tclWinCPUID) (unsigned int index, unsigned int *regs); /* 29 */
+    int (*tclUnixOpenTemporaryFile) (Tcl_Obj *dirObj, Tcl_Obj *basenameObj, Tcl_Obj *extensionObj, Tcl_Obj *resultingNameObj); /* 30 */
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
     void (*tclGetAndDetachPids) (Tcl_Interp *interp, Tcl_Channel chan); /* 0 */
@@ -337,13 +355,12 @@ typedef struct TclIntPlatStubs {
     void (*reserved27)(void);
     void (*reserved28)(void);
     int (*tclWinCPUID) (unsigned int index, unsigned int *regs); /* 29 */
+    int (*tclUnixOpenTemporaryFile) (Tcl_Obj *dirObj, Tcl_Obj *basenameObj, Tcl_Obj *extensionObj, Tcl_Obj *resultingNameObj); /* 30 */
 #endif /* MACOSX */
 } TclIntPlatStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern const TclIntPlatStubs *tclIntPlatStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
@@ -354,7 +371,7 @@ extern const TclIntPlatStubs *tclIntPlatStubsPtr;
  * Inline function declarations:
  */
 
-#if !defined(__WIN32__) && !defined(__CYGWIN__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(__CYGWIN__) && !defined(MAC_OSX_TCL) /* UNIX */
 #define TclGetAndDetachPids \
 	(tclIntPlatStubsPtr->tclGetAndDetachPids) /* 0 */
 #define TclpCloseFile \
@@ -400,8 +417,10 @@ extern const TclIntPlatStubs *tclIntPlatStubsPtr;
 /* Slot 28 is reserved */
 #define TclWinCPUID \
 	(tclIntPlatStubsPtr->tclWinCPUID) /* 29 */
+#define TclUnixOpenTemporaryFile \
+	(tclIntPlatStubsPtr->tclUnixOpenTemporaryFile) /* 30 */
 #endif /* UNIX */
-#if defined(__WIN32__) || defined(__CYGWIN__) /* WIN */
+#if defined(_WIN32) || defined(__CYGWIN__) /* WIN */
 #define TclWinConvertError \
 	(tclIntPlatStubsPtr->tclWinConvertError) /* 0 */
 #define TclWinConvertWSAError \
@@ -460,6 +479,8 @@ extern const TclIntPlatStubs *tclIntPlatStubsPtr;
 	(tclIntPlatStubsPtr->tclWinResetInterfaces) /* 28 */
 #define TclWinCPUID \
 	(tclIntPlatStubsPtr->tclWinCPUID) /* 29 */
+#define TclUnixOpenTemporaryFile \
+	(tclIntPlatStubsPtr->tclUnixOpenTemporaryFile) /* 30 */
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
 #define TclGetAndDetachPids \
@@ -512,6 +533,8 @@ extern const TclIntPlatStubs *tclIntPlatStubsPtr;
 /* Slot 28 is reserved */
 #define TclWinCPUID \
 	(tclIntPlatStubsPtr->tclWinCPUID) /* 29 */
+#define TclUnixOpenTemporaryFile \
+	(tclIntPlatStubsPtr->tclUnixOpenTemporaryFile) /* 30 */
 #endif /* MACOSX */
 
 #endif /* defined(USE_TCL_STUBS) */
@@ -524,10 +547,18 @@ extern const TclIntPlatStubs *tclIntPlatStubsPtr;
 #undef TclpGmtime_unix
 #undef TclWinConvertWSAError
 #define TclWinConvertWSAError TclWinConvertError
+#undef TclpInetNtoa
+#define TclpInetNtoa inet_ntoa
 
-#if defined(__WIN32__) || defined(__CYGWIN__)
+#if defined(_WIN32)
 #   undef TclWinNToHS
+#   undef TclWinGetServByName
+#   undef TclWinGetSockOpt
+#   undef TclWinSetSockOpt
 #   define TclWinNToHS ntohs
+#   define TclWinGetServByName getservbyname
+#   define TclWinGetSockOpt getsockopt
+#   define TclWinSetSockOpt setsockopt
 #else
 #   undef TclpGetPid
 #   define TclpGetPid(pid) ((unsigned long) (pid))
diff --git a/generic/tclInterp.c b/generic/tclInterp.c
index 0b0f652..0da5d47 100644
--- a/generic/tclInterp.c
+++ b/generic/tclInterp.c
@@ -179,6 +179,37 @@ typedef struct ScriptLimitCallbackKey {
 } ScriptLimitCallbackKey;
 
 /*
+ * TIP#143 limit handler internal representation.
+ */
+
+struct LimitHandler {
+    int flags;			/* The state of this particular handler. */
+    Tcl_LimitHandlerProc *handlerProc;
+				/* The handler callback. */
+    ClientData clientData;	/* Opaque argument to the handler callback. */
+    Tcl_LimitHandlerDeleteProc *deleteProc;
+				/* How to delete the clientData. */
+    LimitHandler *prevPtr;	/* Previous item in linked list of
+				 * handlers. */
+    LimitHandler *nextPtr;	/* Next item in linked list of handlers. */
+};
+
+/*
+ * Values for the LimitHandler flags field.
+ *      LIMIT_HANDLER_ACTIVE - Whether the handler is currently being
+ *              processed; handlers are never to be entered reentrantly.
+ *      LIMIT_HANDLER_DELETED - Whether the handler has been deleted. This
+ *              should not normally be observed because when a handler is
+ *              deleted it is also spliced out of the list of handlers, but
+ *              even so we will be careful.
+ */
+
+#define LIMIT_HANDLER_ACTIVE    0x01
+#define LIMIT_HANDLER_DELETED   0x02
+
+
+
+/*
  * Prototypes for local static functions:
  */
 
@@ -248,6 +279,12 @@ static void		DeleteScriptLimitCallback(ClientData clientData);
 static void		RunLimitHandlers(LimitHandler *handlerPtr,
 			    Tcl_Interp *interp);
 static void		TimeLimitCallback(ClientData clientData);
+
+/* NRE enabling */
+static Tcl_NRPostProc	NRPostInvokeHidden;
+static Tcl_ObjCmdProc	NRInterpCmd;
+static Tcl_ObjCmdProc	NRSlaveCmd;
+
 
 /*
  *----------------------------------------------------------------------
@@ -450,7 +487,8 @@ TclInterpInit(
     slavePtr->interpCmd		= NULL;
     Tcl_InitHashTable(&slavePtr->aliasTable, TCL_STRING_KEYS);
 
-    Tcl_CreateObjCommand(interp, "interp", Tcl_InterpObjCmd, NULL, NULL);
+    Tcl_NRCreateCommand(interp, "interp", Tcl_InterpObjCmd, NRInterpCmd,
+	    NULL, NULL);
 
     Tcl_CallWhenDeleted(interp, InterpInfoDeleteProc, NULL);
     return TCL_OK;
@@ -559,6 +597,16 @@ Tcl_InterpObjCmd(
     int objc,				/* Number of arguments. */
     Tcl_Obj *const objv[])		/* Argument objects. */
 {
+    return Tcl_NRCallObjProc(interp, NRInterpCmd, clientData, objc, objv);
+}
+
+static int
+NRInterpCmd(
+    ClientData clientData,		/* Unused. */
+    Tcl_Interp *interp,			/* Current interpreter. */
+    int objc,				/* Number of arguments. */
+    Tcl_Obj *const objv[])		/* Argument objects. */
+{
     Tcl_Interp *slaveInterp;
     int index;
     static const char *const options[] = {
@@ -1798,9 +1846,9 @@ AliasNRCmd(
      */
 
     if (isRootEnsemble) {
-	TclNRDeferCallback(interp, TclClearRootEnsemble, NULL, NULL, NULL, NULL);
+	TclNRAddCallback(interp, TclClearRootEnsemble, NULL, NULL, NULL, NULL);
     }
-    iPtr->evalFlags |= TCL_EVAL_REDIRECT;
+    TclSkipTailcall(interp);
     return Tcl_NREvalObj(interp, listPtr, flags);
 }
 
@@ -2341,8 +2389,8 @@ SlaveCreate(
     slavePtr->masterInterp = masterInterp;
     slavePtr->slaveEntryPtr = hPtr;
     slavePtr->slaveInterp = slaveInterp;
-    slavePtr->interpCmd = Tcl_CreateObjCommand(masterInterp, path,
-	    SlaveObjCmd, slaveInterp, SlaveObjCmdDeleteProc);
+    slavePtr->interpCmd = Tcl_NRCreateCommand(masterInterp, path,
+	    SlaveObjCmd, NRSlaveCmd, slaveInterp, SlaveObjCmdDeleteProc);
     Tcl_InitHashTable(&slavePtr->aliasTable, TCL_STRING_KEYS);
     Tcl_SetHashValue(hPtr, slavePtr);
     Tcl_SetVar(slaveInterp, "tcl_interactive", "0", TCL_GLOBAL_ONLY);
@@ -2431,6 +2479,16 @@ SlaveObjCmd(
     int objc,			/* Number of arguments. */
     Tcl_Obj *const objv[])	/* Argument objects. */
 {
+    return Tcl_NRCallObjProc(interp, NRSlaveCmd, clientData, objc, objv);
+}
+
+static int
+NRSlaveCmd(
+    ClientData clientData,	/* Slave interpreter. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
     Tcl_Interp *slaveInterp = clientData;
     int index;
     static const char *const options[] = {
@@ -3021,7 +3079,11 @@ SlaveInvokeHidden(
     Tcl_AllowExceptions(slaveInterp);
 
     if (namespaceName == NULL) {
-	result = TclObjInvoke(slaveInterp, objc, objv, TCL_INVOKE_HIDDEN);
+	NRE_callback *rootPtr = TOP_CB(slaveInterp);
+
+	Tcl_NRAddCallback(interp, NRPostInvokeHidden, slaveInterp,
+		rootPtr, NULL, NULL);
+	return TclNRInvoke(NULL, slaveInterp, objc, objv);
     } else {
 	Namespace *nsPtr, *dummy1, *dummy2;
 	const char *tail;
@@ -3040,6 +3102,23 @@ SlaveInvokeHidden(
     Tcl_Release(slaveInterp);
     return result;
 }
+
+static int
+NRPostInvokeHidden(
+    ClientData data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Tcl_Interp *slaveInterp = (Tcl_Interp *)data[0];
+    NRE_callback *rootPtr = (NRE_callback *)data[1];
+
+    if (interp != slaveInterp) {
+	result = TclNRRunCallbacks(slaveInterp, result, rootPtr);
+	Tcl_TransferResult(slaveInterp, result, interp);
+    }
+    Tcl_Release(slaveInterp);
+    return result;
+}
 
 /*
  *----------------------------------------------------------------------
diff --git a/generic/tclLink.c b/generic/tclLink.c
index a3b42bd..2735256 100644
--- a/generic/tclLink.c
+++ b/generic/tclLink.c
@@ -112,8 +112,8 @@ Tcl_LinkVar(
     Link *linkPtr;
     int code;
 
-    linkPtr = (Link *) Tcl_VarTraceInfo(interp, varName, TCL_GLOBAL_ONLY,
-	    LinkTraceProc, (ClientData) NULL);
+    linkPtr = (Link *) Tcl_VarTraceInfo2(interp, varName, NULL,
+	    TCL_GLOBAL_ONLY, LinkTraceProc, (ClientData) NULL);
     if (linkPtr != NULL) {
 	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		"variable '%s' is already linked", varName));
@@ -138,8 +138,9 @@ Tcl_LinkVar(
 	ckfree(linkPtr);
 	return TCL_ERROR;
     }
-    code = Tcl_TraceVar(interp, varName, TCL_GLOBAL_ONLY|TCL_TRACE_READS
-	    |TCL_TRACE_WRITES|TCL_TRACE_UNSETS, LinkTraceProc, linkPtr);
+    code = Tcl_TraceVar2(interp, varName, NULL,
+	    TCL_GLOBAL_ONLY|TCL_TRACE_READS|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+	    LinkTraceProc, linkPtr);
     if (code != TCL_OK) {
 	Tcl_DecrRefCount(linkPtr->varName);
 	ckfree(linkPtr);
@@ -170,13 +171,13 @@ Tcl_UnlinkVar(
     Tcl_Interp *interp,		/* Interpreter containing variable to unlink */
     const char *varName)	/* Global variable in interp to unlink. */
 {
-    Link *linkPtr = (Link *) Tcl_VarTraceInfo(interp, varName,
+    Link *linkPtr = (Link *) Tcl_VarTraceInfo2(interp, varName, NULL,
 	    TCL_GLOBAL_ONLY, LinkTraceProc, NULL);
 
     if (linkPtr == NULL) {
 	return;
     }
-    Tcl_UntraceVar(interp, varName,
+    Tcl_UntraceVar2(interp, varName, NULL,
 	    TCL_GLOBAL_ONLY|TCL_TRACE_READS|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
 	    LinkTraceProc, linkPtr);
     Tcl_DecrRefCount(linkPtr->varName);
@@ -207,7 +208,7 @@ Tcl_UpdateLinkedVar(
     Tcl_Interp *interp,		/* Interpreter containing variable. */
     const char *varName)	/* Name of global variable that is linked. */
 {
-    Link *linkPtr = (Link *) Tcl_VarTraceInfo(interp, varName,
+    Link *linkPtr = (Link *) Tcl_VarTraceInfo2(interp, varName, NULL,
 	    TCL_GLOBAL_ONLY, LinkTraceProc, NULL);
     int savedFlag;
 
@@ -221,8 +222,8 @@ Tcl_UpdateLinkedVar(
     /*
      * Callback may have unlinked the variable. [Bug 1740631]
      */
-    linkPtr = (Link *) Tcl_VarTraceInfo(interp, varName, TCL_GLOBAL_ONLY,
-	    LinkTraceProc, NULL);
+    linkPtr = (Link *) Tcl_VarTraceInfo2(interp, varName, NULL,
+	    TCL_GLOBAL_ONLY, LinkTraceProc, NULL);
     if (linkPtr != NULL) {
 	linkPtr->flags = (linkPtr->flags & ~LINK_BEING_UPDATED) | savedFlag;
     }
@@ -278,7 +279,7 @@ LinkTraceProc(
 	} else if (flags & TCL_TRACE_DESTROYED) {
 	    Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
 		    TCL_GLOBAL_ONLY);
-	    Tcl_TraceVar(interp, Tcl_GetString(linkPtr->varName),
+	    Tcl_TraceVar2(interp, Tcl_GetString(linkPtr->varName), NULL,
 		    TCL_GLOBAL_ONLY|TCL_TRACE_READS|TCL_TRACE_WRITES
 		    |TCL_TRACE_UNSETS, LinkTraceProc, linkPtr);
 	}
diff --git a/generic/tclListObj.c b/generic/tclListObj.c
index 3668b45..bd2dbc4 100644
--- a/generic/tclListObj.c
+++ b/generic/tclListObj.c
@@ -237,7 +237,7 @@ Tcl_NewListObj(
      * Now create the object.
      */
 
-    Tcl_InvalidateStringRep(listPtr);
+    TclInvalidateStringRep(listPtr);
     ListSetIntRep(listPtr, listRepPtr);
     return listPtr;
 }
@@ -302,7 +302,7 @@ Tcl_DbNewListObj(
      * Now create the object.
      */
 
-    Tcl_InvalidateStringRep(listPtr);
+    TclInvalidateStringRep(listPtr);
     ListSetIntRep(listPtr, listRepPtr);
 
     return listPtr;
@@ -362,7 +362,7 @@ Tcl_SetListObj(
      */
 
     TclFreeIntRep(objPtr);
-    Tcl_InvalidateStringRep(objPtr);
+    TclInvalidateStringRep(objPtr);
 
     /*
      * Set the object's type to "list" and initialize the internal rep.
@@ -697,7 +697,7 @@ Tcl_ListObjAppendElement(
      * representation has changed.
      */
 
-    Tcl_InvalidateStringRep(listPtr);
+    TclInvalidateStringRep(listPtr);
     return TCL_OK;
 }
 
@@ -909,6 +909,10 @@ Tcl_ListObjReplace(
     isShared = (listRepPtr->refCount > 1);
     numRequired = numElems - count + objc;
 
+    for (i = 0;  i < objc;  i++) {
+	Tcl_IncrRefCount(objv[i]);
+    }
+
     if ((numRequired <= listRepPtr->maxElemCount) && !isShared) {
 	int shift;
 
@@ -963,6 +967,14 @@ Tcl_ListObjReplace(
 	    if (listRepPtr == NULL) {
 		listRepPtr = AttemptNewList(interp, numRequired, NULL);
 		if (listRepPtr == NULL) {
+		    for (i = 0;  i < objc;  i++) {
+			/* See bug 3598580 */
+#if TCL_MAJOR_VERSION > 8
+			Tcl_DecrRefCount(objv[i]);
+#else
+			objv[i]->refCount--;
+#endif
+		    }
 		    return TCL_ERROR;
 		}
 	    }
@@ -1027,14 +1039,11 @@ Tcl_ListObjReplace(
     }
 
     /*
-     * Insert the new elements into elemPtrs before "first". We don't do a
-     * memcpy here because we must increment the reference counts for the
-     * added elements, so we must explicitly loop anyway.
+     * Insert the new elements into elemPtrs before "first".
      */
 
     for (i=0,j=first ; i<objc ; i++,j++) {
 	elemPtrs[j] = objv[i];
-	Tcl_IncrRefCount(objv[i]);
     }
 
     /*
@@ -1048,7 +1057,7 @@ Tcl_ListObjReplace(
      * reflects the list's internal representation.
      */
 
-    Tcl_InvalidateStringRep(listPtr);
+    TclInvalidateStringRep(listPtr);
     return TCL_OK;
 }
 
@@ -1514,7 +1523,7 @@ TclLsetFlat(
 	     * containing lists.
 	     */
 
-	    Tcl_InvalidateStringRep(objPtr);
+	    TclInvalidateStringRep(objPtr);
 	}
 
 	/*
@@ -1550,7 +1559,7 @@ TclLsetFlat(
     } else {
 	TclListObjSetElement(NULL, subListPtr, index, valuePtr);
     }
-    Tcl_InvalidateStringRep(subListPtr);
+    TclInvalidateStringRep(subListPtr);
     Tcl_IncrRefCount(retValuePtr);
     return retValuePtr;
 }
@@ -1727,8 +1736,6 @@ FreeListInternalRep(
 	ckfree(listRepPtr);
     }
 
-    listPtr->internalRep.twoPtrValue.ptr1 = NULL;
-    listPtr->internalRep.twoPtrValue.ptr2 = NULL;
     listPtr->typePtr = NULL;
 }
 
diff --git a/generic/tclLiteral.c b/generic/tclLiteral.c
index 441ea91..2b0cc7e 100644
--- a/generic/tclLiteral.c
+++ b/generic/tclLiteral.c
@@ -32,6 +32,10 @@ static int		AddLocalLiteralEntry(CompileEnv *envPtr,
 			    Tcl_Obj *objPtr, int localHash);
 static void		ExpandLocalLiteralArray(CompileEnv *envPtr);
 static unsigned		HashString(const char *string, int length);
+#ifdef TCL_COMPILE_DEBUG
+static LiteralEntry *	LookupLiteralEntry(Tcl_Interp *interp,
+			    Tcl_Obj *objPtr);
+#endif
 static void		RebuildLiteralTable(LiteralTable *tablePtr);
 
 /*
@@ -239,7 +243,7 @@ TclCreateLiteral(
     }
 
 #ifdef TCL_COMPILE_DEBUG
-    if (TclLookupLiteralEntry((Tcl_Interp *) iPtr, objPtr) != NULL) {
+    if (LookupLiteralEntry((Tcl_Interp *) iPtr, objPtr) != NULL) {
 	Tcl_Panic("%s: literal \"%.*s\" found globally but shouldn't be",
 		"TclRegisterLiteral", (length>60? 60 : length), bytes);
     }
@@ -301,6 +305,33 @@ TclCreateLiteral(
 /*
  *----------------------------------------------------------------------
  *
+ * TclFetchLiteral --
+ *
+ *	Fetch from a CompileEnv the literal value identified by an index
+ *	value, as returned by a prior call to TclRegisterLiteral().
+ *
+ * Results:
+ *	The literal value, or NULL if the index is out of range.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+TclFetchLiteral(
+    CompileEnv *envPtr,		/* Points to the CompileEnv from which to
+				 * fetch the registered literal value. */
+    unsigned int index)		/* Index of the desired literal, as returned
+				 * by prior call to TclRegisterLiteral() */
+{
+    if (index >= (unsigned int) envPtr->literalArrayNext) {
+	return NULL;
+    }
+    return envPtr->literalArrayPtr[index].objPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * TclRegisterLiteral --
  *
  *	Find, or if necessary create, an object in a CompileEnv literal array
@@ -327,7 +358,7 @@ TclCreateLiteral(
 
 int
 TclRegisterLiteral(
-    CompileEnv *envPtr,		/* Points to the CompileEnv in whose object
+    void *ePtr,		/* Points to the CompileEnv in whose object
 				 * array an object is found or created. */
     register char *bytes,	/* Points to string for which to find or
 				 * create an object in CompileEnv's object
@@ -341,6 +372,7 @@ TclRegisterLiteral(
 				 * the literal should not be shared accross
 				 * namespaces. */
 {
+    CompileEnv *envPtr = ePtr;
     Interp *iPtr = envPtr->iPtr;
     LiteralTable *localTablePtr = &envPtr->localLitTable;
     LiteralEntry *globalPtr, *localPtr;
@@ -414,10 +446,11 @@ TclRegisterLiteral(
     return objIndex;
 }
 
+#ifdef TCL_COMPILE_DEBUG
 /*
  *----------------------------------------------------------------------
  *
- * TclLookupLiteralEntry --
+ * LookupLiteralEntry --
  *
  *	Finds the LiteralEntry that corresponds to a literal Tcl object
  *	holding a literal.
@@ -431,8 +464,8 @@ TclRegisterLiteral(
  *----------------------------------------------------------------------
  */
 
-LiteralEntry *
-TclLookupLiteralEntry(
+static LiteralEntry *
+LookupLiteralEntry(
     Tcl_Interp *interp,		/* Interpreter for which objPtr was created to
 				 * hold a literal. */
     register Tcl_Obj *objPtr)	/* Points to a Tcl object holding a literal
@@ -456,6 +489,7 @@ TclLookupLiteralEntry(
     return NULL;
 }
 
+#endif
 /*
  *----------------------------------------------------------------------
  *
@@ -750,11 +784,16 @@ TclReleaseLiteral(
 				 * TclRegisterLiteral. */
 {
     Interp *iPtr = (Interp *) interp;
-    LiteralTable *globalTablePtr = &iPtr->literalTable;
+    LiteralTable *globalTablePtr;
     register LiteralEntry *entryPtr, *prevPtr;
     const char *bytes;
     int length, index;
 
+    if (iPtr == NULL) {
+	goto done;
+    }
+
+    globalTablePtr = &iPtr->literalTable;
     bytes = TclGetStringFromObj(objPtr, &length);
     index = (HashString(bytes, length) & globalTablePtr->mask);
 
@@ -798,6 +837,7 @@ TclReleaseLiteral(
      * Remove the reference corresponding to the local literal table entry.
      */
 
+    done:
     Tcl_DecrRefCount(objPtr);
 }
 
@@ -971,8 +1011,13 @@ TclInvalidateCmdLiteral(
     Tcl_Obj *literalObjPtr = TclCreateLiteral(iPtr, (char *) name,
 	    strlen(name), -1, NULL, nsPtr, 0, NULL);
 
-    if (literalObjPtr != NULL && literalObjPtr->typePtr == &tclCmdNameType) {
-	TclFreeIntRep(literalObjPtr);
+    if (literalObjPtr != NULL) {
+	if (literalObjPtr->typePtr == &tclCmdNameType) {
+	    TclFreeIntRep(literalObjPtr);
+	}
+	/* Balance the refcount effects of TclCreateLiteral() above */
+	Tcl_IncrRefCount(literalObjPtr);
+	TclReleaseLiteral(interp, literalObjPtr);
     }
 }
 
@@ -1090,7 +1135,7 @@ TclVerifyLocalLiteralTable(
 			"TclVerifyLocalLiteralTable",
 			(length>60? 60 : length), bytes, localPtr->refCount);
 	    }
-	    if (TclLookupLiteralEntry((Tcl_Interp *) envPtr->iPtr,
+	    if (LookupLiteralEntry((Tcl_Interp *) envPtr->iPtr,
 		    localPtr->objPtr) == NULL) {
 		bytes = Tcl_GetStringFromObj(localPtr->objPtr, &length);
 		Tcl_Panic("%s: local literal \"%.*s\" is not global",
diff --git a/generic/tclLoad.c b/generic/tclLoad.c
index 3fead6f..7c70e03 100644
--- a/generic/tclLoad.c
+++ b/generic/tclLoad.c
@@ -132,9 +132,34 @@ Tcl_LoadObjCmd(
     Tcl_LoadHandle loadHandle;
     Tcl_UniChar ch;
     unsigned len;
+    int index, flags = 0;
+    Tcl_Obj *const *savedobjv = objv;
+    static const char *const options[] = {
+	"-global",		"-lazy",		"--",	NULL
+    };
+    enum options {
+	LOAD_GLOBAL,	LOAD_LAZY,	LOAD_LAST
+    };
 
+    while (objc > 2) {
+	if (TclGetString(objv[1])[0] != '-') {
+	    break;
+	}
+	if (Tcl_GetIndexFromObj(interp, objv[1], options, "option", 0,
+		&index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	++objv; --objc;
+	if (LOAD_GLOBAL == (enum options) index) {
+	    flags |= TCL_LOAD_GLOBAL;
+	} else if (LOAD_LAZY == (enum options) index) {
+	    flags |= TCL_LOAD_LAZY;
+	} else {
+		break;
+	}
+    }
     if ((objc < 2) || (objc > 4)) {
-	Tcl_WrongNumArgs(interp, 1, objv, "fileName ?packageName? ?interp?");
+	Tcl_WrongNumArgs(interp, 1, savedobjv, "?-global? ?-lazy? ?--? fileName ?packageName? ?interp?");
 	return TCL_ERROR;
     }
     if (Tcl_FSConvertToPathType(interp, objv[1]) != TCL_OK) {
@@ -365,7 +390,7 @@ Tcl_LoadObjCmd(
 	symbols[1] = NULL;
 
 	Tcl_MutexLock(&packageMutex);
-	code = Tcl_LoadFile(interp, objv[1], symbols, 0, &initProc,
+	code = Tcl_LoadFile(interp, objv[1], symbols, flags, &initProc,
 		&loadHandle);
 	Tcl_MutexUnlock(&packageMutex);
 	if (code != TCL_OK) {
@@ -391,7 +416,7 @@ Tcl_LoadObjCmd(
 	pkgPtr->unloadProc	   = (Tcl_PackageUnloadProc *)
 		Tcl_FindSymbol(interp, loadHandle,
 			Tcl_DStringValue(&unloadName));
-	pkgPtr->safeUnloadProc	   = (Tcl_PackageUnloadProc *) 
+	pkgPtr->safeUnloadProc	   = (Tcl_PackageUnloadProc *)
 		Tcl_FindSymbol(interp, loadHandle,
 			Tcl_DStringValue(&safeUnloadName));
 	pkgPtr->interpRefCount	   = 0;
@@ -805,7 +830,7 @@ Tcl_UnloadObjCmd(
 	 * Unload the shared library from the application memory...
 	 */
 
-#if defined(TCL_UNLOAD_DLLS) || defined(__WIN32__)
+#if defined(TCL_UNLOAD_DLLS) || defined(_WIN32)
 	/*
 	 * Some Unix dlls are poorly behaved - registering things like atexit
 	 * calls that can't be unregistered. If you unload such dlls, you get
@@ -1126,7 +1151,7 @@ TclFinalizeLoad(void)
 	pkgPtr = firstPackagePtr;
 	firstPackagePtr = pkgPtr->nextPtr;
 
-#if defined(TCL_UNLOAD_DLLS) || defined(__WIN32__)
+#if defined(TCL_UNLOAD_DLLS) || defined(_WIN32)
 	/*
 	 * Some Unix dlls are poorly behaved - registering things like atexit
 	 * calls that can't be unregistered. If you unload such dlls, you get
diff --git a/generic/tclLoadNone.c b/generic/tclLoadNone.c
index 6b48aee..6cb4378 100644
--- a/generic/tclLoadNone.c
+++ b/generic/tclLoadNone.c
@@ -39,10 +39,11 @@ TclpDlopen(
     Tcl_LoadHandle *loadHandle,	/* Filled with token for dynamically loaded
 				 * file which will be passed back to
 				 * (*unloadProcPtr)() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr)
+    Tcl_FSUnloadFileProc **unloadProcPtr,
 				/* Filled with address of Tcl_FSUnloadFileProc
 				 * function which should be used for this
 				 * file. */
+    int flags)
 {
     Tcl_SetObjResult(interp, Tcl_NewStringObj(
 	    "dynamic loading is not currently available on this system",
@@ -81,6 +82,41 @@ TclGuessPackageName(
 }
 
 /*
+ * These functions are fallbacks if we somehow determine that the platform can
+ * do loading from memory but the user wishes to disable it. They just report
+ * (gracefully) that they fail.
+ */
+
+#ifdef TCL_LOAD_FROM_MEMORY
+
+MODULE_SCOPE void *
+TclpLoadMemoryGetBuffer(
+    Tcl_Interp *interp,		/* Dummy: unused by this implementation */
+    int size)			/* Dummy: unused by this implementation */
+{
+    return NULL;
+}
+
+MODULE_SCOPE int
+TclpLoadMemory(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    void *buffer,		/* Dummy: unused by this implementation */
+    int size,			/* Dummy: unused by this implementation */
+    int codeSize,		/* Dummy: unused by this implementation */
+    Tcl_LoadHandle *loadHandle,	/* Dummy: unused by this implementation */
+    Tcl_FSUnloadFileProc **unloadProcPtr,
+				/* Dummy: unused by this implementation */
+    int flags)
+				/* Dummy: unused by this implementation */
+{
+    Tcl_SetObjResult(interp, Tcl_NewStringObj("dynamic loading from memory "
+	    "is not available on this system", -1));
+    return TCL_ERROR;
+}
+
+#endif /* TCL_LOAD_FROM_MEMORY */
+
+/*
  * Local Variables:
  * mode: c
  * c-basic-offset: 4
diff --git a/generic/tclMain.c b/generic/tclMain.c
index 14139ec..360f5e9 100644
--- a/generic/tclMain.c
+++ b/generic/tclMain.c
@@ -47,7 +47,7 @@
  * we have to translate that to strcmp here.
  */
 
-#ifndef __WIN32__
+#ifndef _WIN32
 #   define TCHAR char
 #   define TEXT(arg) arg
 #   define _tcscmp strcmp
@@ -313,6 +313,9 @@ Tcl_MainEx(
     Tcl_Channel chan;
     InteractiveState is;
 
+    TclpSetInitialEncodings();
+    TclpFindExecutable((const char *)argv[0]);
+
     Tcl_InitMemory(interp);
 
     is.interp = interp;
@@ -334,14 +337,14 @@ Tcl_MainEx(
 	 */
 
 	if ((argc > 3) && (0 == _tcscmp(TEXT("-encoding"), argv[1]))
-		&& (TEXT('-') != argv[3][0])) {
+		&& ('-' != argv[3][0])) {
 	    Tcl_Obj *value = NewNativeObj(argv[2], -1);
 	    Tcl_SetStartupScript(NewNativeObj(argv[3], -1),
 		    Tcl_GetString(value));
 	    Tcl_DecrRefCount(value);
 	    argc -= 3;
 	    argv += 3;
-	} else if ((argc > 1) && (TEXT('-') != argv[1][0])) {
+	} else if ((argc > 1) && ('-' != argv[1][0])) {
 	    Tcl_SetStartupScript(NewNativeObj(argv[1], -1), NULL);
 	    argc--;
 	    argv++;
@@ -640,7 +643,6 @@ Tcl_Main(
 				 * function to call after most initialization
 				 * but before starting to execute commands. */
 {
-    Tcl_FindExecutable(argv[0]);
     Tcl_MainEx(argc, argv, appInitProc, Tcl_CreateInterp());
 }
 #endif /* TCL_MAJOR_VERSION == 8 && !UNICODE */
diff --git a/generic/tclNamesp.c b/generic/tclNamesp.c
index 3c93400..8f2f10e 100644
--- a/generic/tclNamesp.c
+++ b/generic/tclNamesp.c
@@ -104,7 +104,7 @@ static int		NamespaceDeleteCmd(ClientData dummy,Tcl_Interp *interp,
 static int		NamespaceEvalCmd(ClientData dummy, Tcl_Interp *interp,
 			    int objc, Tcl_Obj *const objv[]);
 static int		NRNamespaceEvalCmd(ClientData dummy,
-                            Tcl_Interp *interp,int objc,Tcl_Obj *const objv[]);
+			    Tcl_Interp *interp,int objc,Tcl_Obj *const objv[]);
 static int		NamespaceExistsCmd(ClientData dummy,Tcl_Interp *interp,
 			    int objc, Tcl_Obj *const objv[]);
 static int		NamespaceExportCmd(ClientData dummy,Tcl_Interp *interp,
@@ -160,25 +160,25 @@ static const Tcl_ObjType nsNameType = {
  */
 
 static const EnsembleImplMap defaultNamespaceMap[] = {
-    {"children",        NamespaceChildrenCmd, NULL, NULL, NULL, 0},
-    {"code",            NamespaceCodeCmd, NULL, NULL, NULL, 0},
-    {"current",         NamespaceCurrentCmd, NULL, NULL, NULL, 0},
-    {"delete",          NamespaceDeleteCmd, NULL, NULL, NULL, 0},
-    {"ensemble",        TclNamespaceEnsembleCmd, NULL, NULL, NULL, 0},
-    {"eval",            NamespaceEvalCmd,       NULL, NRNamespaceEvalCmd, NULL, 0},
-    {"exists",          NamespaceExistsCmd, NULL, NULL, NULL, 0},
-    {"export",          NamespaceExportCmd, NULL, NULL, NULL, 0},
-    {"forget",          NamespaceForgetCmd, NULL, NULL, NULL, 0},
-    {"import",          NamespaceImportCmd, NULL, NULL, NULL, 0},
-    {"inscope",         NamespaceInscopeCmd,    NULL, NRNamespaceInscopeCmd, NULL, 0},
-    {"origin",          NamespaceOriginCmd, NULL, NULL, NULL, 0},
-    {"parent",          NamespaceParentCmd, NULL, NULL, NULL, 0},
-    {"path",            NamespacePathCmd, NULL, NULL, NULL, 0},
-    {"qualifiers",      NamespaceQualifiersCmd, NULL, NULL, NULL, 0},
-    {"tail",            NamespaceTailCmd, NULL, NULL, NULL, 0},
-    {"unknown",         NamespaceUnknownCmd, NULL, NULL, NULL, 0},
-    {"upvar",           NamespaceUpvarCmd,      TclCompileNamespaceUpvarCmd, NULL, NULL, 0},
-    {"which",           NamespaceWhichCmd, NULL, NULL, NULL, 0},
+    {"children",   NamespaceChildrenCmd, TclCompileBasic0To2ArgCmd, NULL, NULL, 0},
+    {"code",	   NamespaceCodeCmd,	TclCompileNamespaceCodeCmd, NULL, NULL, 0},
+    {"current",	   NamespaceCurrentCmd,	TclCompileNamespaceCurrentCmd, NULL, NULL, 0},
+    {"delete",	   NamespaceDeleteCmd,	TclCompileBasicMin0ArgCmd, NULL, NULL, 0},
+    {"ensemble",   TclNamespaceEnsembleCmd, NULL, NULL, NULL, 0},
+    {"eval",	   NamespaceEvalCmd,	NULL, NRNamespaceEvalCmd, NULL, 0},
+    {"exists",	   NamespaceExistsCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"export",	   NamespaceExportCmd,	TclCompileBasicMin0ArgCmd, NULL, NULL, 0},
+    {"forget",	   NamespaceForgetCmd,	TclCompileBasicMin0ArgCmd, NULL, NULL, 0},
+    {"import",	   NamespaceImportCmd,	TclCompileBasicMin0ArgCmd, NULL, NULL, 0},
+    {"inscope",	   NamespaceInscopeCmd,	NULL, NRNamespaceInscopeCmd, NULL, 0},
+    {"origin",	   NamespaceOriginCmd,	TclCompileNamespaceOriginCmd, NULL, NULL, 0},
+    {"parent",	   NamespaceParentCmd,	TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"path",	   NamespacePathCmd,	TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"qualifiers", NamespaceQualifiersCmd, TclCompileNamespaceQualifiersCmd, NULL, NULL, 0},
+    {"tail",	   NamespaceTailCmd,	TclCompileNamespaceTailCmd, NULL, NULL, 0},
+    {"unknown",	   NamespaceUnknownCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
+    {"upvar",	   NamespaceUpvarCmd,	TclCompileNamespaceUpvarCmd, NULL, NULL, 0},
+    {"which",	   NamespaceWhichCmd,	TclCompileNamespaceWhichCmd, NULL, NULL, 0},
     {NULL, NULL, NULL, NULL, NULL, 0}
 };
 
@@ -423,7 +423,7 @@ Tcl_PopCallFrame(
     framePtr->nsPtr = NULL;
 
     if (framePtr->tailcallPtr) {
-        TclSpliceTailcall(interp, framePtr->tailcallPtr);
+	TclSetTailcall(interp, framePtr->tailcallPtr);
     }
 }
 
@@ -505,9 +505,9 @@ EstablishErrorCodeTraces(
     const char *name2,
     int flags)
 {
-    Tcl_TraceVar(interp, "errorCode", TCL_GLOBAL_ONLY | TCL_TRACE_READS,
+    Tcl_TraceVar2(interp, "errorCode", NULL, TCL_GLOBAL_ONLY|TCL_TRACE_READS,
 	    ErrorCodeRead, NULL);
-    Tcl_TraceVar(interp, "errorCode", TCL_GLOBAL_ONLY | TCL_TRACE_UNSETS,
+    Tcl_TraceVar2(interp, "errorCode", NULL, TCL_GLOBAL_ONLY|TCL_TRACE_UNSETS,
 	    EstablishErrorCodeTraces, NULL);
     return NULL;
 }
@@ -579,9 +579,9 @@ EstablishErrorInfoTraces(
     const char *name2,
     int flags)
 {
-    Tcl_TraceVar(interp, "errorInfo", TCL_GLOBAL_ONLY | TCL_TRACE_READS,
+    Tcl_TraceVar2(interp, "errorInfo", NULL, TCL_GLOBAL_ONLY|TCL_TRACE_READS,
 	    ErrorInfoRead, NULL);
-    Tcl_TraceVar(interp, "errorInfo", TCL_GLOBAL_ONLY | TCL_TRACE_UNSETS,
+    Tcl_TraceVar2(interp, "errorInfo", NULL, TCL_GLOBAL_ONLY|TCL_TRACE_UNSETS,
 	    EstablishErrorInfoTraces, NULL);
     return NULL;
 }
@@ -673,6 +673,10 @@ Tcl_CreateNamespace(
     Tcl_DString *namePtr, *buffPtr;
     int newEntry, nameLen;
     ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+    const char *nameStr;
+    Tcl_DString tmpBuffer;
+
+    Tcl_DStringInit(&tmpBuffer);
 
     /*
      * If there is no active namespace, the interpreter is being initialized.
@@ -686,50 +690,78 @@ Tcl_CreateNamespace(
 
 	parentPtr = NULL;
 	simpleName = "";
-    } else if (*name == '\0') {
+	goto doCreate;
+    }
+
+    /*
+     * Ensure that there are no trailing colons as that causes chaos when a
+     * deleteProc is specified. [Bug d614d63989]
+     */
+
+    if (deleteProc != NULL) {
+	nameStr = name + strlen(name) - 2;
+	if (nameStr >= name && nameStr[1] == ':' && nameStr[0] == ':') {
+	    Tcl_DStringAppend(&tmpBuffer, name, -1);
+	    while ((nameLen = Tcl_DStringLength(&tmpBuffer)) > 0
+		    && Tcl_DStringValue(&tmpBuffer)[nameLen-1] == ':') {
+		Tcl_DStringSetLength(&tmpBuffer, nameLen-1);
+	    }
+	    name = Tcl_DStringValue(&tmpBuffer);
+	}
+    }
+
+    /*
+     * If we've ended up with an empty string now, we're attempting to create
+     * the global namespace despite the global namespace existing. That's
+     * naughty!
+     */
+
+    if (*name == '\0') {
 	Tcl_SetObjResult(interp, Tcl_NewStringObj("can't create namespace"
                 " \"\": only global namespace can have empty name", -1));
-        Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE",
-                "CREATEGLOBAL", NULL);
+	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE",
+		"CREATEGLOBAL", NULL);
+	Tcl_DStringFree(&tmpBuffer);
 	return NULL;
-    } else {
-	/*
-	 * Find the parent for the new namespace.
-	 */
+    }
 
-	TclGetNamespaceForQualName(interp, name, NULL,
-		/*flags*/ (TCL_CREATE_NS_IF_UNKNOWN | TCL_LEAVE_ERR_MSG),
-		&parentPtr, &dummy1Ptr, &dummy2Ptr, &simpleName);
+    /*
+     * Find the parent for the new namespace.
+     */
 
-	/*
-	 * If the unqualified name at the end is empty, there were trailing
-	 * "::"s after the namespace's name which we ignore. The new namespace
-	 * was already (recursively) created and is pointed to by parentPtr.
-	 */
+    TclGetNamespaceForQualName(interp, name, NULL, TCL_CREATE_NS_IF_UNKNOWN,
+	    &parentPtr, &dummy1Ptr, &dummy2Ptr, &simpleName);
 
-	if (*simpleName == '\0') {
-	    return (Tcl_Namespace *) parentPtr;
-	}
+    /*
+     * If the unqualified name at the end is empty, there were trailing "::"s
+     * after the namespace's name which we ignore. The new namespace was
+     * already (recursively) created and is pointed to by parentPtr.
+     */
 
-	/*
-	 * Check for a bad namespace name and make sure that the name does not
-	 * already exist in the parent namespace.
-	 */
+    if (*simpleName == '\0') {
+	Tcl_DStringFree(&tmpBuffer);
+	return (Tcl_Namespace *) parentPtr;
+    }
 
-	if (
+    /*
+     * Check for a bad namespace name and make sure that the name does not
+     * already exist in the parent namespace.
+     */
+
+    if (
 #ifndef BREAK_NAMESPACE_COMPAT
-	    Tcl_FindHashEntry(&parentPtr->childTable, simpleName) != NULL
+	Tcl_FindHashEntry(&parentPtr->childTable, simpleName) != NULL
 #else
-	    parentPtr->childTablePtr != NULL &&
-	    Tcl_FindHashEntry(parentPtr->childTablePtr, simpleName) != NULL
+	parentPtr->childTablePtr != NULL &&
+	Tcl_FindHashEntry(parentPtr->childTablePtr, simpleName) != NULL
 #endif
-	) {
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-                    "can't create namespace \"%s\": already exists", name));
-            Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE",
-                    "CREATEEXISTING", NULL);
-	    return NULL;
-	}
+    ) {
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"can't create namespace \"%s\": already exists", name));
+	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE",
+		"CREATEEXISTING", NULL);
+	Tcl_DStringFree(&tmpBuffer);
+	return NULL;
     }
 
     /*
@@ -737,6 +769,7 @@ Tcl_CreateNamespace(
      * of namespaces created.
      */
 
+  doCreate:
     nsPtr = ckalloc(sizeof(Namespace));
     nameLen = strlen(simpleName) + 1;
     nsPtr->name = ckalloc(nameLen);
@@ -832,6 +865,7 @@ Tcl_CreateNamespace(
 
     Tcl_DStringFree(&buffer1);
     Tcl_DStringFree(&buffer2);
+    Tcl_DStringFree(&tmpBuffer);
 
     /*
      * If compilation of commands originating from the parent NS is
@@ -1330,14 +1364,13 @@ Tcl_Export(
      * Check that the pattern doesn't have namespace qualifiers.
      */
 
-    TclGetNamespaceForQualName(interp, pattern, nsPtr,
-	    /*flags*/ (TCL_LEAVE_ERR_MSG | TCL_NAMESPACE_ONLY),
+    TclGetNamespaceForQualName(interp, pattern, nsPtr, TCL_NAMESPACE_ONLY,
 	    &exportNsPtr, &dummyPtr, &dummyPtr, &simplePattern);
 
     if ((exportNsPtr != nsPtr) || (strcmp(pattern, simplePattern) != 0)) {
 	Tcl_SetObjResult(interp, Tcl_ObjPrintf("invalid export pattern"
                 " \"%s\": pattern can't specify a namespace", pattern));
-        Tcl_SetErrorCode(interp, "TCL", "EXPORT", "INVALID", NULL);
+	Tcl_SetErrorCode(interp, "TCL", "EXPORT", "INVALID", NULL);
 	return TCL_ERROR;
     }
 
@@ -1542,11 +1575,10 @@ Tcl_Import(
 
     if (strlen(pattern) == 0) {
 	Tcl_SetObjResult(interp, Tcl_NewStringObj("empty import pattern",-1));
-        Tcl_SetErrorCode(interp, "TCL", "IMPORT", "EMPTY", NULL);
+	Tcl_SetErrorCode(interp, "TCL", "IMPORT", "EMPTY", NULL);
 	return TCL_ERROR;
     }
-    TclGetNamespaceForQualName(interp, pattern, nsPtr,
-	    /*flags*/ (TCL_LEAVE_ERR_MSG | TCL_NAMESPACE_ONLY),
+    TclGetNamespaceForQualName(interp, pattern, nsPtr, TCL_NAMESPACE_ONLY,
 	    &importNsPtr, &dummyPtr, &dummyPtr, &simplePattern);
 
     if (importNsPtr == NULL) {
@@ -1560,12 +1592,12 @@ Tcl_Import(
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		    "no namespace specified in import pattern \"%s\"",
                     pattern));
-            Tcl_SetErrorCode(interp, "TCL", "IMPORT", "ORIGIN", NULL);
+	    Tcl_SetErrorCode(interp, "TCL", "IMPORT", "ORIGIN", NULL);
 	} else {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                     "import pattern \"%s\" tries to import from namespace"
                     " \"%s\" into itself", pattern, importNsPtr->name));
-            Tcl_SetErrorCode(interp, "TCL", "IMPORT", "SELF", NULL);
+	    Tcl_SetErrorCode(interp, "TCL", "IMPORT", "SELF", NULL);
 	}
 	return TCL_ERROR;
     }
@@ -1688,7 +1720,7 @@ DoImport(
                             " containing command \"%s\"",
                             pattern, Tcl_DStringValue(&ds)));
 		    Tcl_DStringFree(&ds);
-                    Tcl_SetErrorCode(interp, "TCL", "IMPORT", "LOOP", NULL);
+		    Tcl_SetErrorCode(interp, "TCL", "IMPORT", "LOOP", NULL);
 		    return TCL_ERROR;
 		}
 	    }
@@ -1728,7 +1760,7 @@ DoImport(
 	}
 	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                 "can't import command \"%s\": already exists", cmdName));
-        Tcl_SetErrorCode(interp, "TCL", "IMPORT", "OVERWRITE", NULL);
+	Tcl_SetErrorCode(interp, "TCL", "IMPORT", "OVERWRITE", NULL);
 	return TCL_ERROR;
     }
     return TCL_OK;
@@ -1791,8 +1823,7 @@ Tcl_ForgetImport(
      * simple pattern.
      */
 
-    TclGetNamespaceForQualName(interp, pattern, nsPtr,
-	    /*flags*/ (TCL_LEAVE_ERR_MSG | TCL_NAMESPACE_ONLY),
+    TclGetNamespaceForQualName(interp, pattern, nsPtr, TCL_NAMESPACE_ONLY,
 	    &sourceNsPtr, &dummyPtr, &dummyPtr, &simplePattern);
 
     if (sourceNsPtr == NULL) {
@@ -1945,8 +1976,8 @@ InvokeImportedNRCmd(
     ImportedCmdData *dataPtr = clientData;
     Command *realCmdPtr = dataPtr->realCmdPtr;
 
-    ((Interp *) interp)->evalFlags |= TCL_EVAL_REDIRECT;
-    return Tcl_NRCmdSwap(interp, (Tcl_Command) realCmdPtr, objc, objv, 0);
+    TclSkipTailcall(interp);
+    return TclNREvalObjv(interp, objc, objv, TCL_EVAL_NOERR, realCmdPtr);
 }
 
 static int
@@ -3285,12 +3316,12 @@ NRNamespaceEvalCmd(
     }
 
     if (iPtr->ensembleRewrite.sourceObjs == NULL) {
-        framePtr->objc = objc;
-        framePtr->objv = objv;
+	framePtr->objc = objc;
+	framePtr->objv = objv;
     } else {
-        framePtr->objc = objc + iPtr->ensembleRewrite.numRemovedObjs
-                - iPtr->ensembleRewrite.numInsertedObjs;
-        framePtr->objv = iPtr->ensembleRewrite.sourceObjs;
+	framePtr->objc = objc + iPtr->ensembleRewrite.numRemovedObjs
+		- iPtr->ensembleRewrite.numInsertedObjs;
+	framePtr->objv = iPtr->ensembleRewrite.sourceObjs;
     }
 
     if (objc == 3) {
@@ -3435,10 +3466,7 @@ NamespaceExportCmd(
     int objc,			/* Number of arguments. */
     Tcl_Obj *const objv[])	/* Argument objects. */
 {
-    Namespace *currNsPtr = (Namespace *) TclGetCurrentNamespace(interp);
-    const char *pattern, *string;
-    int resetListFirst = 0;
-    int firstArg, patternCt, i, result;
+    int firstArg, i;
 
     if (objc < 1) {
 	Tcl_WrongNumArgs(interp, 1, objv, "?-clear? ?pattern pattern...?");
@@ -3446,42 +3474,27 @@ NamespaceExportCmd(
     }
 
     /*
-     * Process the optional "-clear" argument.
+     * If no pattern arguments are given, and "-clear" isn't specified, return
+     * the namespace's current export pattern list.
      */
 
-    firstArg = 1;
-    if (firstArg < objc) {
-	string = TclGetString(objv[firstArg]);
-	if (strcmp(string, "-clear") == 0) {
-	    resetListFirst = 1;
-	    firstArg++;
-	}
+    if (objc == 1) {
+	Tcl_Obj *listPtr = Tcl_NewObj();
+
+	(void) Tcl_AppendExportList(interp, NULL, listPtr);
+	Tcl_SetObjResult(interp, listPtr);
+	return TCL_OK;
     }
 
     /*
-     * If no pattern arguments are given, and "-clear" isn't specified, return
-     * the namespace's current export pattern list.
+     * Process the optional "-clear" argument.
      */
 
-    patternCt = objc - firstArg;
-    if (patternCt == 0) {
-	if (firstArg > 1) {
-	    return TCL_OK;
-	} else {
-	    /*
-	     * Create list with export patterns.
-	     */
-
-	    Tcl_Obj *listPtr = Tcl_NewListObj(0, NULL);
-
-	    result = Tcl_AppendExportList(interp, (Tcl_Namespace *) currNsPtr,
-		    listPtr);
-	    if (result != TCL_OK) {
-		return result;
-	    }
-	    Tcl_SetObjResult(interp, listPtr);
-	    return TCL_OK;
-	}
+    firstArg = 1;
+    if (strcmp("-clear", Tcl_GetString(objv[firstArg])) == 0) {
+	Tcl_Export(interp, NULL, "::", 1);
+	Tcl_ResetResult(interp);
+	firstArg++;
     }
 
     /*
@@ -3489,9 +3502,7 @@ NamespaceExportCmd(
      */
 
     for (i = firstArg;  i < objc;  i++) {
-	pattern = TclGetString(objv[i]);
-	result = Tcl_Export(interp, (Tcl_Namespace *) currNsPtr, pattern,
-		((i == firstArg)? resetListFirst : 0));
+	int result = Tcl_Export(interp, NULL, Tcl_GetString(objv[i]), 0);
 	if (result != TCL_OK) {
 	    return result;
 	}
@@ -3748,12 +3759,12 @@ NRNamespaceInscopeCmd(
     }
 
     if (iPtr->ensembleRewrite.sourceObjs == NULL) {
-        framePtr->objc = objc;
-        framePtr->objv = objv;
+	framePtr->objc = objc;
+	framePtr->objv = objv;
     } else {
-        framePtr->objc = objc + iPtr->ensembleRewrite.numRemovedObjs
-                - iPtr->ensembleRewrite.numInsertedObjs;
-        framePtr->objv = iPtr->ensembleRewrite.sourceObjs;
+	framePtr->objc = objc + iPtr->ensembleRewrite.numRemovedObjs
+		- iPtr->ensembleRewrite.numInsertedObjs;
+	framePtr->objv = iPtr->ensembleRewrite.sourceObjs;
     }
 
     /*
@@ -3958,15 +3969,15 @@ NamespacePathCmd(
      */
 
     if (objc == 1) {
-        Tcl_Obj *resultObj = Tcl_NewObj();
+	Tcl_Obj *resultObj = Tcl_NewObj();
 
 	for (i=0 ; i<nsPtr->commandPathLength ; i++) {
 	    if (nsPtr->commandPathArray[i].nsPtr != NULL) {
-                Tcl_ListObjAppendElement(NULL, resultObj, Tcl_NewStringObj(
-                        nsPtr->commandPathArray[i].nsPtr->fullName, -1));
+		Tcl_ListObjAppendElement(NULL, resultObj, Tcl_NewStringObj(
+			nsPtr->commandPathArray[i].nsPtr->fullName, -1));
 	    }
 	}
-        Tcl_SetObjResult(interp, resultObj);
+	Tcl_SetObjResult(interp, resultObj);
 	return TCL_OK;
     }
 
@@ -4843,8 +4854,8 @@ TclLogCommandInfo(
     int length,			/* Number of bytes in command (-1 means use
 				 * all bytes up to first null byte). */
     const unsigned char *pc,    /* Current pc of bytecode execution context */
-    Tcl_Obj **tosPtr)           /* Current stack of bytecode execution
-                                 * context */
+    Tcl_Obj **tosPtr)		/* Current stack of bytecode execution
+				 * context */
 {
     register const char *p;
     Interp *iPtr = (Interp *) interp;
@@ -4861,55 +4872,55 @@ TclLogCommandInfo(
     }
 
     if (command != NULL) {
-        /*
-         * Compute the line number where the error occurred.
-         */
-
-        iPtr->errorLine = 1;
-        for (p = script; p != command; p++) {
-            if (*p == '\n') {
-                iPtr->errorLine++;
-            }
-        }
-
-        if (length < 0) {
-            length = strlen(command);
-        }
-        overflow = (length > limit);
-        Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
+	/*
+	 * Compute the line number where the error occurred.
+	 */
+
+	iPtr->errorLine = 1;
+	for (p = script; p != command; p++) {
+	    if (*p == '\n') {
+		iPtr->errorLine++;
+	    }
+	}
+
+	if (length < 0) {
+	    length = strlen(command);
+	}
+	overflow = (length > limit);
+	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
 		"\n    %s\n\"%.*s%s\"", ((iPtr->errorInfo == NULL)
 		? "while executing" : "invoked from within"),
 		(overflow ? limit : length), command,
 		(overflow ? "..." : "")));
 
-        varPtr = TclObjLookupVarEx(interp, iPtr->eiVar, NULL, TCL_GLOBAL_ONLY,
+	varPtr = TclObjLookupVarEx(interp, iPtr->eiVar, NULL, TCL_GLOBAL_ONLY,
 		NULL, 0, 0, &arrayPtr);
-        if ((varPtr == NULL) || !TclIsVarTraced(varPtr)) {
-            /*
-             * Should not happen.
-             */
-
-            return;
-        } else {
-            Tcl_HashEntry *hPtr
+	if ((varPtr == NULL) || !TclIsVarTraced(varPtr)) {
+	    /*
+	     * Should not happen.
+	     */
+
+	    return;
+	} else {
+	    Tcl_HashEntry *hPtr
 		    = Tcl_FindHashEntry(&iPtr->varTraces, (char *) varPtr);
-            VarTrace *tracePtr = Tcl_GetHashValue(hPtr);
+	    VarTrace *tracePtr = Tcl_GetHashValue(hPtr);
 
-            if (tracePtr->traceProc != EstablishErrorInfoTraces) {
-                /*
-                 * The most recent trace set on ::errorInfo is not the one the
-                 * core itself puts on last. This means some other code is
+	    if (tracePtr->traceProc != EstablishErrorInfoTraces) {
+		/*
+		 * The most recent trace set on ::errorInfo is not the one the
+		 * core itself puts on last. This means some other code is
 		 * tracing the variable, and the additional trace(s) might be
 		 * write traces that expect the timing of writes to
 		 * ::errorInfo that existed Tcl releases before 8.5. To
 		 * satisfy that compatibility need, we write the current
 		 * -errorinfo value to the ::errorInfo variable.
-                 */
+		 */
 
-                Tcl_ObjSetVar2(interp, iPtr->eiVar, NULL, iPtr->errorInfo,
+		Tcl_ObjSetVar2(interp, iPtr->eiVar, NULL, iPtr->errorInfo,
 			TCL_GLOBAL_ONLY);
-            }
-        }
+	    }
+	}
     }
 
     /*
@@ -4917,60 +4928,60 @@ TclLogCommandInfo(
      */
 
     if (Tcl_IsShared(iPtr->errorStack)) {
-        Tcl_Obj *newObj;
-            
-        newObj = Tcl_DuplicateObj(iPtr->errorStack);
-        Tcl_DecrRefCount(iPtr->errorStack);
-        Tcl_IncrRefCount(newObj);
-        iPtr->errorStack = newObj;
+	Tcl_Obj *newObj;
+	    
+	newObj = Tcl_DuplicateObj(iPtr->errorStack);
+	Tcl_DecrRefCount(iPtr->errorStack);
+	Tcl_IncrRefCount(newObj);
+	iPtr->errorStack = newObj;
     }
     if (iPtr->resetErrorStack) {
 	int len;
 
-        iPtr->resetErrorStack = 0;
+	iPtr->resetErrorStack = 0;
 	Tcl_ListObjLength(interp, iPtr->errorStack, &len);
 
-        /*
-         * Reset while keeping the list intrep as much as possible.
-         */
-
-        Tcl_ListObjReplace(interp, iPtr->errorStack, 0, len, 0, NULL);
-        if (pc != NULL) {
-            Tcl_Obj *innerContext;
-
-            innerContext = TclGetInnerContext(interp, pc, tosPtr);
-            if (innerContext != NULL) {
-                Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
-                        iPtr->innerLiteral);
-                Tcl_ListObjAppendElement(NULL, iPtr->errorStack, innerContext);
-            }
-        } else if (command != NULL) {
-            Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
-                    iPtr->innerLiteral);
-            Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
-                    Tcl_NewStringObj(command, length));
-        }
+	/*
+	 * Reset while keeping the list intrep as much as possible.
+	 */
+
+	Tcl_ListObjReplace(interp, iPtr->errorStack, 0, len, 0, NULL);
+	if (pc != NULL) {
+	    Tcl_Obj *innerContext;
+
+	    innerContext = TclGetInnerContext(interp, pc, tosPtr);
+	    if (innerContext != NULL) {
+		Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
+			iPtr->innerLiteral);
+		Tcl_ListObjAppendElement(NULL, iPtr->errorStack, innerContext);
+	    }
+	} else if (command != NULL) {
+	    Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
+		    iPtr->innerLiteral);
+	    Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
+		    Tcl_NewStringObj(command, length));
+	}
     } 
 
     if (!iPtr->framePtr->objc) {
-        /*
-         * Special frame, nothing to report.
-         */
+	/*
+	 * Special frame, nothing to report.
+	 */
     } else if (iPtr->varFramePtr != iPtr->framePtr) {
-        /*
-         * uplevel case, [lappend errorstack UP $relativelevel]
-         */
+	/*
+	 * uplevel case, [lappend errorstack UP $relativelevel]
+	 */
 
-        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->upLiteral);
-        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, Tcl_NewIntObj(
+	Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->upLiteral);
+	Tcl_ListObjAppendElement(NULL, iPtr->errorStack, Tcl_NewIntObj(
 		iPtr->framePtr->level - iPtr->varFramePtr->level));
     } else if (iPtr->framePtr != iPtr->rootFramePtr) {
-        /*
-         * normal case, [lappend errorstack CALL [info level 0]]
-         */
+	/*
+	 * normal case, [lappend errorstack CALL [info level 0]]
+	 */
 
-        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->callLiteral);
-        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, Tcl_NewListObj(
+	Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->callLiteral);
+	Tcl_ListObjAppendElement(NULL, iPtr->errorStack, Tcl_NewListObj(
 		iPtr->framePtr->objc, iPtr->framePtr->objv));
     }
 }
@@ -4980,8 +4991,8 @@ TclLogCommandInfo(
  *
  * TclErrorStackResetIf --
  *
- *      The TIP 348 reset/no-bc part of TLCI, for specific use by
- *      TclCompileSyntaxError.
+ *	The TIP 348 reset/no-bc part of TLCI, for specific use by
+ *	TclCompileSyntaxError.
  *
  * Results:
  *	None.
@@ -5002,27 +5013,27 @@ TclErrorStackResetIf(
     Interp *iPtr = (Interp *) interp;
 
     if (Tcl_IsShared(iPtr->errorStack)) {
-        Tcl_Obj *newObj;
-            
-        newObj = Tcl_DuplicateObj(iPtr->errorStack);
-        Tcl_DecrRefCount(iPtr->errorStack);
-        Tcl_IncrRefCount(newObj);
-        iPtr->errorStack = newObj;
+	Tcl_Obj *newObj;
+	    
+	newObj = Tcl_DuplicateObj(iPtr->errorStack);
+	Tcl_DecrRefCount(iPtr->errorStack);
+	Tcl_IncrRefCount(newObj);
+	iPtr->errorStack = newObj;
     }
     if (iPtr->resetErrorStack) {
 	int len;
 
-        iPtr->resetErrorStack = 0;
+	iPtr->resetErrorStack = 0;
 	Tcl_ListObjLength(interp, iPtr->errorStack, &len);
 
-        /*
-         * Reset while keeping the list intrep as much as possible.
-         */
+	/*
+	 * Reset while keeping the list intrep as much as possible.
+	 */
 
-        Tcl_ListObjReplace(interp, iPtr->errorStack, 0, len, 0, NULL);
-        Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->innerLiteral);
-        Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
-                Tcl_NewStringObj(msg, length));
+	Tcl_ListObjReplace(interp, iPtr->errorStack, 0, len, 0, NULL);
+	Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->innerLiteral);
+	Tcl_ListObjAppendElement(NULL, iPtr->errorStack,
+		Tcl_NewStringObj(msg, length));
     } 
 }
 
@@ -5065,6 +5076,5 @@ Tcl_LogCommandInfo(
  * c-basic-offset: 4
  * fill-column: 78
  * tab-width: 8
- * indent-tabs-mode: nil
  * End:
  */
diff --git a/generic/tclNotify.c b/generic/tclNotify.c
index a6523fc..e76bca8 100644
--- a/generic/tclNotify.c
+++ b/generic/tclNotify.c
@@ -813,11 +813,7 @@ Tcl_SetMaxBlockTime(
      */
 
     if (!tsdPtr->inTraversal) {
-	if (tsdPtr->blockTimeSet) {
-	    Tcl_SetTimer(&tsdPtr->blockTime);
-	} else {
-	    Tcl_SetTimer(NULL);
-	}
+	Tcl_SetTimer(&tsdPtr->blockTime);
     }
 }
 
diff --git a/generic/tclOO.c b/generic/tclOO.c
index 04a2bf7..e2ef1ae 100644
--- a/generic/tclOO.c
+++ b/generic/tclOO.c
@@ -271,7 +271,7 @@ TclOOInit(
 	return TCL_ERROR;
     }
 
-    return Tcl_PkgProvideEx(interp, "TclOO", TCLOO_VERSION,
+    return Tcl_PkgProvideEx(interp, "TclOO", TCLOO_PATCHLEVEL,
 	    (ClientData) &tclOOStubs);
 }
 
@@ -314,6 +314,7 @@ InitFoundation(
     Foundation *fPtr = ckalloc(sizeof(Foundation));
     Tcl_Obj *namePtr, *argsPtr, *bodyPtr;
     Tcl_DString buffer;
+    Command *cmdPtr;
     int i;
 
     /*
@@ -393,6 +394,7 @@ InitFoundation(
     fPtr->classCls->flags |= ROOT_CLASS;
     TclOOAddToInstances(fPtr->objectCls->thisPtr, fPtr->classCls);
     TclOOAddToInstances(fPtr->classCls->thisPtr, fPtr->classCls);
+    TclOOAddToSubclasses(fPtr->classCls, fPtr->objectCls);
     AddRef(fPtr->objectCls->thisPtr);
     AddRef(fPtr->objectCls);
 
@@ -436,12 +438,15 @@ InitFoundation(
      * ensemble.
      */
 
-    Tcl_CreateObjCommand(interp, "::oo::Helpers::next", TclOONextObjCmd, NULL,
-	    NULL);
-    Tcl_CreateObjCommand(interp, "::oo::Helpers::nextto", TclOONextToObjCmd,
-	    NULL, NULL);
-    Tcl_CreateObjCommand(interp, "::oo::Helpers::self", TclOOSelfObjCmd, NULL,
-	    NULL);
+    cmdPtr = (Command *) Tcl_NRCreateCommand(interp, "::oo::Helpers::next",
+	    NULL, TclOONextObjCmd, NULL, NULL);
+    cmdPtr->compileProc = TclCompileObjectNextCmd;
+    cmdPtr = (Command *) Tcl_NRCreateCommand(interp, "::oo::Helpers::nextto",
+	    NULL, TclOONextToObjCmd, NULL, NULL);
+    cmdPtr->compileProc = TclCompileObjectNextToCmd;
+    cmdPtr = (Command *) Tcl_CreateObjCommand(interp, "::oo::Helpers::self",
+	    TclOOSelfObjCmd, NULL, NULL);
+    cmdPtr->compileProc = TclCompileObjectSelfCmd;
     Tcl_CreateObjCommand(interp, "::oo::define", TclOODefineObjCmd, NULL,
 	    NULL);
     Tcl_CreateObjCommand(interp, "::oo::objdefine", TclOOObjDefObjCmd, NULL,
@@ -841,7 +846,7 @@ ObjectRenamedTrace(
 	    result = Tcl_NRCallObjProc(interp, TclOOInvokeContext,
 		    contextPtr, 0, NULL);
 	    if (result != TCL_OK) {
-		Tcl_BackgroundError(interp);
+		Tcl_BackgroundException(interp, result);
 	    }
 	    Tcl_RestoreInterpState(interp, state);
 	    TclOODeleteContext(contextPtr);
@@ -1004,6 +1009,12 @@ ReleaseClassContents(
 	    }
 	    if (!Deleted(instancePtr)) {
 		Tcl_DeleteCommandFromToken(interp, instancePtr->command);
+		/*
+		 * Tcl_DeleteCommandFromToken() may have done to whole
+		 * job for us.  Roll back and check again.
+		 */
+		i--;
+		continue;
 	    }
 	    DelRef(instancePtr);
 	}
@@ -1276,6 +1287,9 @@ TclOORemoveFromInstances(
 
   removeInstance:
     if (Deleted(clsPtr->thisPtr)) {
+	if (!IsRootClass(clsPtr)) {
+	    DelRef(clsPtr->instances.list[i]);
+	}
 	clsPtr->instances.list[i] = NULL;
     } else {
 	clsPtr->instances.num--;
@@ -1661,10 +1675,13 @@ Tcl_NewObjectInstance(
 
 		/*
 		 * Take care to not delete a deleted object; that would be
-		 * bad. [Bug 2903011]
+		 * bad. [Bug 2903011] Also take care to make sure that we have
+		 * the name of the command before we delete it. [Bug
+		 * 9dd1bd7a74]
 		 */
 
 		if (!Deleted(oPtr)) {
+		    (void) TclOOObjectName(interp, oPtr);
 		    Tcl_DeleteCommandFromToken(interp, oPtr->command);
 		}
 		return NULL;
@@ -1807,10 +1824,12 @@ FinalizeAlloc(
 
 	/*
 	 * Take care to not delete a deleted object; that would be bad. [Bug
-	 * 2903011]
+	 * 2903011] Also take care to make sure that we have the name of the
+	 * command before we delete it. [Bug 9dd1bd7a74]
 	 */
 
 	if (!Deleted(oPtr)) {
+	    (void) TclOOObjectName(interp, oPtr);
 	    Tcl_DeleteCommandFromToken(interp, oPtr->command);
 	}
 	DelRef(oPtr);
diff --git a/generic/tclOO.decls b/generic/tclOO.decls
index 31d1113..265ba88 100644
--- a/generic/tclOO.decls
+++ b/generic/tclOO.decls
@@ -1,12 +1,24 @@
+# tclOO.decls --
+#
+#	This file contains the declarations for all supported public functions
+#	that are exported by the TclOO package that is embedded within the Tcl
+#	library via the stubs table.  This file is used to generate the
+#	tclOODecls.h, tclOOIntDecls.h and tclOOStubInit.c files.
+#
+# Copyright (c) 2008-2013 by Donal K. Fellows.
+#
+# See the file "license.terms" for information on usage and redistribution of
+# this file, and for a DISCLAIMER OF ALL WARRANTIES.
+
 library tclOO
 
 ######################################################################
-# public API
+# Public API, exposed for general users of TclOO.
 #
 
 interface tclOO
 hooks tclOOInt
-scspec TCLOOAPI
+scspec TCLAPI
 
 declare 0 {
     Tcl_Object Tcl_CopyObjectInstance(Tcl_Interp *interp,
@@ -116,7 +128,9 @@ declare 28 {
 }
 
 ######################################################################
-# private API, exposed to support advanced OO systems that plug in on top
+# Private API, exposed to support advanced OO systems that plug in on top of
+# TclOO; not intended for general use and does not have any commitment to
+# long-term support.
 #
 
 interface tclOOInt
diff --git a/generic/tclOO.h b/generic/tclOO.h
index 280481c..a7116dc 100644
--- a/generic/tclOO.h
+++ b/generic/tclOO.h
@@ -12,21 +12,6 @@
 
 #ifndef TCLOO_H_INCLUDED
 #define TCLOO_H_INCLUDED
-#include "tcl.h"
-
-#ifndef TCLOOAPI
-#   if defined(BUILD_tcl) || defined(BUILD_TclOO)
-#	define TCLOOAPI MODULE_SCOPE
-#   else
-#	define TCLOOAPI extern
-#	undef USE_TCLOO_STUBS
-#	define USE_TCLOO_STUBS 1
-#   endif
-#endif
-
-extern const char *TclOOInitializeStubs(
-	Tcl_Interp *, const char *version);
-#define Tcl_OOInitStubs(interp) TclOOInitializeStubs((interp), TCLOO_VERSION)
 
 /*
  * Be careful when it comes to versioning; need to make sure that the
@@ -39,9 +24,27 @@ extern const char *TclOOInitializeStubs(
  * win/tclooConfig.sh
  */
 
-#define TCLOO_VERSION "0.7"
+#define TCLOO_VERSION "1.0.3"
 #define TCLOO_PATCHLEVEL TCLOO_VERSION
 
+#include "tcl.h"
+
+/*
+ * For C++ compilers, use extern "C"
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern const char *TclOOInitializeStubs(
+	Tcl_Interp *, const char *version);
+#define Tcl_OOInitStubs(interp) \
+    TclOOInitializeStubs((interp), TCLOO_VERSION)
+#ifndef USE_TCL_STUBS
+#   define TclOOInitializeStubs(interp, version) (TCLOO_PATCHLEVEL)
+#endif
+
 /*
  * These are opaque types.
  */
@@ -130,6 +133,9 @@ typedef struct {
 
 #include "tclOODecls.h"
 
+#ifdef __cplusplus
+}
+#endif
 #endif
 
 /*
diff --git a/generic/tclOOBasic.c b/generic/tclOOBasic.c
index 0676618..0b0516b 100644
--- a/generic/tclOOBasic.c
+++ b/generic/tclOOBasic.c
@@ -4,7 +4,7 @@
  *	This file contains implementations of the "simple" commands and
  *	methods from the object-system core.
  *
- * Copyright (c) 2005-2012 by Donal K. Fellows
+ * Copyright (c) 2005-2013 by Donal K. Fellows
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -17,16 +17,11 @@
 #include "tclOOInt.h"
 
 static inline Tcl_Object *AddConstructionFinalizer(Tcl_Interp *interp);
-static int		AfterNRDestructor(ClientData data[],
-			    Tcl_Interp *interp, int result);
-static int		DecrRefsPostClassConstructor(ClientData data[],
-			    Tcl_Interp *interp, int result);
-static int		FinalizeConstruction(ClientData data[],
-			    Tcl_Interp *interp, int result);
-static int		FinalizeEval(ClientData data[],
-			    Tcl_Interp *interp, int result);
-static int		RestoreFrame(ClientData data[],
-			    Tcl_Interp *interp, int result);
+static Tcl_NRPostProc	AfterNRDestructor;
+static Tcl_NRPostProc	DecrRefsPostClassConstructor;
+static Tcl_NRPostProc	FinalizeConstruction;
+static Tcl_NRPostProc	FinalizeEval;
+static Tcl_NRPostProc	NextRestoreFrame;
 
 /*
  * ----------------------------------------------------------------------
@@ -88,7 +83,7 @@ TclOO_Class_Constructor(
     Tcl_Obj *const *objv)
 {
     Object *oPtr = (Object *) Tcl_ObjectContextObject(context);
-    Tcl_Obj *invoke[3];
+    Tcl_Obj **invoke;
 
     if (objc-1 > Tcl_ObjectContextSkippedArgs(context)) {
 	Tcl_WrongNumArgs(interp, Tcl_ObjectContextSkippedArgs(context), objv,
@@ -102,6 +97,7 @@ TclOO_Class_Constructor(
      * Delegate to [oo::define] to do the work.
      */
 
+    invoke = ckalloc(3 * sizeof(Tcl_Obj *));
     invoke[0] = oPtr->fPtr->defineName;
     invoke[1] = TclOOObjectName(interp, oPtr);
     invoke[2] = objv[objc-1];
@@ -115,7 +111,7 @@ TclOO_Class_Constructor(
     Tcl_IncrRefCount(invoke[1]);
     Tcl_IncrRefCount(invoke[2]);
     TclNRAddCallback(interp, DecrRefsPostClassConstructor,
-	    invoke[0], invoke[1], invoke[2], NULL);
+	    invoke, NULL, NULL, NULL);
 
     /*
      * Tricky point: do not want the extra reported level in the Tcl stack
@@ -131,9 +127,12 @@ DecrRefsPostClassConstructor(
     Tcl_Interp *interp,
     int result)
 {
-    TclDecrRefCount((Tcl_Obj *) data[0]);
-    TclDecrRefCount((Tcl_Obj *) data[1]);
-    TclDecrRefCount((Tcl_Obj *) data[2]);
+    Tcl_Obj **invoke = data[0];
+
+    TclDecrRefCount(invoke[0]);
+    TclDecrRefCount(invoke[1]);
+    TclDecrRefCount(invoke[2]);
+    ckfree(invoke);
     return result;
 }
 
@@ -687,52 +686,51 @@ TclOO_Object_VarName(
     int objc,			/* Number of arguments. */
     Tcl_Obj *const *objv)	/* The actual arguments. */
 {
-    Interp *iPtr = (Interp *) interp;
     Var *varPtr, *aryVar;
-    Tcl_Obj *varNamePtr;
+    Tcl_Obj *varNamePtr, *argPtr;
+    const char *arg;
 
     if (Tcl_ObjectContextSkippedArgs(context)+1 != objc) {
 	Tcl_WrongNumArgs(interp, Tcl_ObjectContextSkippedArgs(context), objv,
 		"varName");
 	return TCL_ERROR;
     }
+    argPtr = objv[objc-1];
+    arg = Tcl_GetString(argPtr);
 
     /*
-     * Switch to the object's namespace for the duration of this call. Like
-     * this, the variable is looked up in the namespace of the object, and not
-     * in the namespace of the caller. Otherwise this would only work if the
-     * caller was a method of the object itself, which might not be true if
-     * the method was exported. This is a bit of a hack, but the simplest way
-     * to do this (pushing a stack frame would be horribly expensive by
-     * comparison, and is only done when we'd otherwise interfere with the
-     * global namespace).
+     * Convert the variable name to fully-qualified form if it wasn't already.
+     * This has to be done prior to lookup because we can run into problems
+     * with resolvers otherwise. [Bug 3603695]
+     *
+     * We still need to do the lookup; the variable could be linked to another
+     * variable and we want the target's name.
      */
 
-    if (iPtr->varFramePtr == NULL) {
-	Tcl_CallFrame *dummyFrame;
-
-	TclPushStackFrame(interp, &dummyFrame,
-		Tcl_GetObjectNamespace(Tcl_ObjectContextObject(context)),0);
-	varPtr = TclObjLookupVar(interp, objv[objc-1], NULL,
-		TCL_NAMESPACE_ONLY|TCL_LEAVE_ERR_MSG, "refer to",1,1,&aryVar);
-	TclPopStackFrame(interp);
+    if (arg[0] == ':' && arg[1] == ':') {
+	varNamePtr = argPtr;
     } else {
-	Namespace *savedNsPtr;
-
-	savedNsPtr = iPtr->varFramePtr->nsPtr;
-	iPtr->varFramePtr->nsPtr = (Namespace *)
+	Tcl_Namespace *namespacePtr =
 		Tcl_GetObjectNamespace(Tcl_ObjectContextObject(context));
-	varPtr = TclObjLookupVar(interp, objv[objc-1], NULL,
-		TCL_NAMESPACE_ONLY|TCL_LEAVE_ERR_MSG, "refer to",1,1,&aryVar);
-	iPtr->varFramePtr->nsPtr = savedNsPtr;
-    }
 
+	varNamePtr = Tcl_NewStringObj(namespacePtr->fullName, -1);
+	Tcl_AppendToObj(varNamePtr, "::", 2);
+	Tcl_AppendObjToObj(varNamePtr, argPtr);
+    }
+    Tcl_IncrRefCount(varNamePtr);
+    varPtr = TclObjLookupVar(interp, varNamePtr, NULL,
+	    TCL_NAMESPACE_ONLY|TCL_LEAVE_ERR_MSG, "refer to", 1, 1, &aryVar);
+    Tcl_DecrRefCount(varNamePtr);
     if (varPtr == NULL) {
-	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "VARIABLE",
-		TclGetString(objv[objc-1]), NULL);
+	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "VARIABLE", arg, NULL);
 	return TCL_ERROR;
     }
 
+    /*
+     * Now that we've pinned down what variable we're really talking about
+     * (including traversing variable links), convert back to a name.
+     */
+
     varNamePtr = Tcl_NewObj();
     if (aryVar != NULL) {
 	Tcl_HashEntry *hPtr;
@@ -805,7 +803,7 @@ TclOONextObjCmd(
      * that this is like [uplevel 1] and not [eval].
      */
 
-    TclNRAddCallback(interp, RestoreFrame, framePtr, NULL, NULL, NULL);
+    TclNRAddCallback(interp, NextRestoreFrame, framePtr, NULL,NULL,NULL);
     iPtr->varFramePtr = framePtr->callerVarPtr;
     return TclNRObjectContextInvokeNext(interp, context, objc, objv, 1);
 }
@@ -823,6 +821,7 @@ TclOONextToObjCmd(
     CallContext *contextPtr;
     int i;
     Tcl_Object object;
+    const char *methodType;
 
     /*
      * Start with sanity checks on the calling context to make sure that we
@@ -874,8 +873,8 @@ TclOONextToObjCmd(
 	     * context. Note that this is like [uplevel 1] and not [eval].
 	     */
 
-	    TclNRAddCallback(interp, RestoreFrame, framePtr, contextPtr,
-		    INT2PTR(contextPtr->index), NULL);
+	    TclNRAddCallback(interp, NextRestoreFrame, framePtr,
+		    contextPtr, INT2PTR(contextPtr->index), NULL);
 	    contextPtr->index = i-1;
 	    iPtr->varFramePtr = framePtr->callerVarPtr;
 	    return TclNRObjectContextInvokeNext(interp,
@@ -888,24 +887,35 @@ TclOONextToObjCmd(
      * is on the chain but unreachable, or not on the chain at all.
      */
 
+    if (contextPtr->callPtr->flags & CONSTRUCTOR) {
+	methodType = "constructor";
+    } else if (contextPtr->callPtr->flags & DESTRUCTOR) {
+	methodType = "destructor";
+    } else {
+	methodType = "method";
+    }
+
     for (i=contextPtr->index ; i>=0 ; i--) {
 	struct MInvoke *miPtr = contextPtr->callPtr->chain + i;
 
 	if (!miPtr->isFilter && miPtr->mPtr->declaringClassPtr == classPtr) {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "method implementation by \"%s\" not reachable from here",
-		    TclGetString(objv[1])));
+		    "%s implementation by \"%s\" not reachable from here",
+		    methodType, TclGetString(objv[1])));
+	    Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_REACHABLE",
+		    NULL);
 	    return TCL_ERROR;
 	}
     }
     Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-	    "method has no non-filter implementation by \"%s\"",
-	    TclGetString(objv[1])));
+	    "%s has no non-filter implementation by \"%s\"",
+	    methodType, TclGetString(objv[1])));
+    Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_THERE", NULL);
     return TCL_ERROR;
 }
 
 static int
-RestoreFrame(
+NextRestoreFrame(
     ClientData data[],
     Tcl_Interp *interp,
     int result)
diff --git a/generic/tclOOCall.c b/generic/tclOOCall.c
index a79e4fa..2a81091 100644
--- a/generic/tclOOCall.c
+++ b/generic/tclOOCall.c
@@ -38,6 +38,12 @@ struct ChainBuilder {
 #define DEFINITE_PUBLIC    0x200000
 #define KNOWN_STATE	   (DEFINITE_PROTECTED | DEFINITE_PUBLIC)
 #define SPECIAL		   (CONSTRUCTOR | DESTRUCTOR | FORCE_UNKNOWN)
+#define BUILDING_MIXINS	   0x400000
+#define TRAVERSED_MIXIN	   0x800000
+#define OBJECT_MIXIN	   0x1000000
+#define MIXIN_CONSISTENT(flags) \
+    (((flags) & OBJECT_MIXIN) ||					\
+	!((flags) & BUILDING_MIXINS) == !((flags) & TRAVERSED_MIXIN))
 
 /*
  * Function declarations for things defined in this file.
@@ -45,13 +51,13 @@ struct ChainBuilder {
 
 static void		AddClassFiltersToCallContext(Object *const oPtr,
 			    Class *clsPtr, struct ChainBuilder *const cbPtr,
-			    Tcl_HashTable *const doneFilters);
+			    Tcl_HashTable *const doneFilters, int flags);
 static void		AddClassMethodNames(Class *clsPtr, const int flags,
 			    Tcl_HashTable *const namesPtr);
 static inline void	AddMethodToCallChain(Method *const mPtr,
 			    struct ChainBuilder *const cbPtr,
 			    Tcl_HashTable *const doneFilters,
-			    Class *const filterDecl);
+			    Class *const filterDecl, int flags);
 static inline void	AddSimpleChainToCallContext(Object *const oPtr,
 			    Tcl_Obj *const methodNameObj,
 			    struct ChainBuilder *const cbPtr,
@@ -150,7 +156,7 @@ void
 TclOODeleteChain(
     CallChain *callPtr)
 {
-    if (--callPtr->refCount >= 1) {
+    if (callPtr == NULL || --callPtr->refCount >= 1) {
 	return;
     }
     if (callPtr->chain != callPtr->staticChain) {
@@ -178,7 +184,7 @@ StashCallChain(
     callPtr->refCount++;
     TclFreeIntRep(objPtr);
     objPtr->typePtr = &methodNameType;
-    objPtr->internalRep.otherValuePtr = callPtr;
+    objPtr->internalRep.twoPtrValue.ptr1 = callPtr;
 }
 
 void
@@ -205,10 +211,10 @@ DupMethodNameRep(
     Tcl_Obj *srcPtr,
     Tcl_Obj *dstPtr)
 {
-    register CallChain *callPtr = srcPtr->internalRep.otherValuePtr;
+    register CallChain *callPtr = srcPtr->internalRep.twoPtrValue.ptr1;
 
     dstPtr->typePtr = &methodNameType;
-    dstPtr->internalRep.otherValuePtr = callPtr;
+    dstPtr->internalRep.twoPtrValue.ptr1 = callPtr;
     callPtr->refCount++;
 }
 
@@ -216,10 +222,9 @@ static void
 FreeMethodNameRep(
     Tcl_Obj *objPtr)
 {
-    register CallChain *callPtr = objPtr->internalRep.otherValuePtr;
+    register CallChain *callPtr = objPtr->internalRep.twoPtrValue.ptr1;
 
     TclOODeleteChain(callPtr);
-    objPtr->internalRep.otherValuePtr = NULL;
     objPtr->typePtr = NULL;
 }
 
@@ -435,7 +440,7 @@ TclOOGetSortedMethodList(
 
     AddClassMethodNames(oPtr->selfCls, flags, &names);
     FOREACH(mixinPtr, oPtr->mixins) {
-	AddClassMethodNames(mixinPtr, flags, &names);
+	AddClassMethodNames(mixinPtr, flags|TRAVERSED_MIXIN, &names);
     }
 
     /*
@@ -599,7 +604,7 @@ AddClassMethodNames(
 
 	/* TODO: Beware of infinite loops! */
 	FOREACH(mixinPtr, clsPtr->mixins) {
-	    AddClassMethodNames(mixinPtr, flags, namesPtr);
+	    AddClassMethodNames(mixinPtr, flags|TRAVERSED_MIXIN, namesPtr);
 	}
     }
 
@@ -696,13 +701,13 @@ AddSimpleChainToCallContext(
 
 	FOREACH(mixinPtr, oPtr->mixins) {
 	    AddSimpleClassChainToCallContext(mixinPtr, methodNameObj, cbPtr,
-		    doneFilters, flags, filterDecl);
+		    doneFilters, flags|TRAVERSED_MIXIN, filterDecl);
 	}
 	if (oPtr->methodsPtr) {
 	    hPtr = Tcl_FindHashEntry(oPtr->methodsPtr, (char*) methodNameObj);
 	    if (hPtr != NULL) {
 		AddMethodToCallChain(Tcl_GetHashValue(hPtr), cbPtr,
-			doneFilters, filterDecl);
+			doneFilters, filterDecl, flags);
 	    }
 	}
     }
@@ -733,9 +738,15 @@ AddMethodToCallChain(
 				 * processed. If NULL, not processing filters.
 				 * Note that this function does not update
 				 * this hashtable. */
-    Class *const filterDecl)	/* The class that declared the filter. If
+    Class *const filterDecl,	/* The class that declared the filter. If
 				 * NULL, either the filter was declared by the
 				 * object or this isn't a filter. */
+    int flags)			/* Used to check if we're mixin-consistent
+				 * only. Mixin-consistent means that either
+				 * we're looking to add things from a mixin
+				 * and we have passed a mixin, or we're not
+				 * looking to add things from a mixin and have
+				 * not passed a mixin. */
 {
     register CallChain *callPtr = cbPtr->callChainPtr;
     int i;
@@ -744,9 +755,11 @@ AddMethodToCallChain(
      * Return if this is just an entry used to record whether this is a public
      * method. If so, there's nothing real to call and so nothing to add to
      * the call chain.
+     *
+     * This is also where we enforce mixin-consistency.
      */
 
-    if (mPtr == NULL || mPtr->typePtr == NULL) {
+    if (mPtr == NULL || mPtr->typePtr == NULL || !MIXIN_CONSISTENT(flags)) {
 	return;
     }
 
@@ -952,7 +965,7 @@ TclOOGetCallContext(
 	const int reuseMask = ((flags & PUBLIC_METHOD) ? ~0 : ~PUBLIC_METHOD);
 
 	if (cacheInThisObj->typePtr == &methodNameType) {
-	    callPtr = cacheInThisObj->internalRep.otherValuePtr;
+	    callPtr = cacheInThisObj->internalRep.twoPtrValue.ptr1;
 	    if (IsStillValid(callPtr, oPtr, flags, reuseMask)) {
 		callPtr->refCount++;
 		goto returnContext;
@@ -1002,6 +1015,8 @@ TclOOGetCallContext(
 
     if (flags & FORCE_UNKNOWN) {
 	AddSimpleChainToCallContext(oPtr, oPtr->fPtr->unknownMethodNameObj,
+		&cb, NULL, BUILDING_MIXINS, NULL);
+	AddSimpleChainToCallContext(oPtr, oPtr->fPtr->unknownMethodNameObj,
 		&cb, NULL, 0, NULL);
 	callPtr->flags |= OO_UNKNOWN_METHOD;
 	callPtr->epoch = -1;
@@ -1025,21 +1040,32 @@ TclOOGetCallContext(
 	doFilters = 1;
 	Tcl_InitObjHashTable(&doneFilters);
 	FOREACH(mixinPtr, oPtr->mixins) {
-	    AddClassFiltersToCallContext(oPtr, mixinPtr, &cb, &doneFilters);
+	    AddClassFiltersToCallContext(oPtr, mixinPtr, &cb, &doneFilters,
+		    TRAVERSED_MIXIN|BUILDING_MIXINS|OBJECT_MIXIN);
+	    AddClassFiltersToCallContext(oPtr, mixinPtr, &cb, &doneFilters,
+		    OBJECT_MIXIN);
 	}
 	FOREACH(filterObj, oPtr->filters) {
+	    AddSimpleChainToCallContext(oPtr, filterObj, &cb, &doneFilters,
+		    BUILDING_MIXINS, NULL);
 	    AddSimpleChainToCallContext(oPtr, filterObj, &cb, &doneFilters, 0,
 		    NULL);
 	}
-	AddClassFiltersToCallContext(oPtr, oPtr->selfCls, &cb, &doneFilters);
+	AddClassFiltersToCallContext(oPtr, oPtr->selfCls, &cb, &doneFilters,
+		BUILDING_MIXINS);
+	AddClassFiltersToCallContext(oPtr, oPtr->selfCls, &cb, &doneFilters,
+		0);
 	Tcl_DeleteHashTable(&doneFilters);
     }
     count = cb.filterLength = callPtr->numChain;
 
     /*
-     * Add the actual method implementations.
+     * Add the actual method implementations. We have to do this twice to
+     * handle class mixins right.
      */
 
+    AddSimpleChainToCallContext(oPtr, methodNameObj, &cb, NULL,
+	    flags|BUILDING_MIXINS, NULL);
     AddSimpleChainToCallContext(oPtr, methodNameObj, &cb, NULL, flags, NULL);
 
     /*
@@ -1059,6 +1085,8 @@ TclOOGetCallContext(
 	    return NULL;
 	}
 	AddSimpleChainToCallContext(oPtr, oPtr->fPtr->unknownMethodNameObj,
+		&cb, NULL, BUILDING_MIXINS, NULL);
+	AddSimpleChainToCallContext(oPtr, oPtr->fPtr->unknownMethodNameObj,
 		&cb, NULL, 0, NULL);
 	callPtr->flags |= OO_UNKNOWN_METHOD;
 	callPtr->epoch = -1;
@@ -1202,7 +1230,9 @@ TclOOGetStereotypeCallChain(
      */
 
     Tcl_InitObjHashTable(&doneFilters);
-    AddClassFiltersToCallContext(&obj, clsPtr, &cb, &doneFilters);
+    AddClassFiltersToCallContext(&obj, clsPtr, &cb, &doneFilters,
+	    BUILDING_MIXINS);
+    AddClassFiltersToCallContext(&obj, clsPtr, &cb, &doneFilters, 0);
     Tcl_DeleteHashTable(&doneFilters);
     count = cb.filterLength = callPtr->numChain;
 
@@ -1210,6 +1240,8 @@ TclOOGetStereotypeCallChain(
      * Add the actual method implementations.
      */
 
+    AddSimpleChainToCallContext(&obj, methodNameObj, &cb, NULL,
+	    flags|BUILDING_MIXINS, NULL);
     AddSimpleChainToCallContext(&obj, methodNameObj, &cb, NULL, flags, NULL);
 
     /*
@@ -1220,6 +1252,8 @@ TclOOGetStereotypeCallChain(
 
     if (count == callPtr->numChain) {
 	AddSimpleChainToCallContext(&obj, fPtr->unknownMethodNameObj, &cb,
+		NULL, BUILDING_MIXINS, NULL);
+	AddSimpleChainToCallContext(&obj, fPtr->unknownMethodNameObj, &cb,
 		NULL, 0, NULL);
 	callPtr->flags |= OO_UNKNOWN_METHOD;
 	callPtr->epoch = -1;
@@ -1260,12 +1294,15 @@ AddClassFiltersToCallContext(
     Class *clsPtr,		/* Class to get the filters from. */
     struct ChainBuilder *const cbPtr,
 				/* Context to fill with call chain entries. */
-    Tcl_HashTable *const doneFilters)
+    Tcl_HashTable *const doneFilters,
 				/* Where to record what filters have been
 				 * processed. Keys are objects, values are
 				 * ignored. */
+    int flags)			/* Whether we've gone along a mixin link
+				 * yet. */
 {
-    int i;
+    int i, clearedFlags =
+	    flags & ~(TRAVERSED_MIXIN|OBJECT_MIXIN|BUILDING_MIXINS);
     Class *superPtr, *mixinPtr;
     Tcl_Obj *filterObj;
 
@@ -1280,7 +1317,8 @@ AddClassFiltersToCallContext(
      */
 
     FOREACH(mixinPtr, clsPtr->mixins) {
-	AddClassFiltersToCallContext(oPtr, mixinPtr, cbPtr, doneFilters);
+	AddClassFiltersToCallContext(oPtr, mixinPtr, cbPtr, doneFilters,
+		flags|TRAVERSED_MIXIN);
     }
 
     /*
@@ -1289,13 +1327,18 @@ AddClassFiltersToCallContext(
      * override how filters work to extend their behaviour.
      */
 
-    FOREACH(filterObj, clsPtr->filters) {
-	int isNew;
+    if (MIXIN_CONSISTENT(flags)) {
+	FOREACH(filterObj, clsPtr->filters) {
+	    int isNew;
 
-	(void) Tcl_CreateHashEntry(doneFilters, (char *) filterObj, &isNew);
-	if (isNew) {
-	    AddSimpleChainToCallContext(oPtr, filterObj, cbPtr, doneFilters,
-		    0, clsPtr);
+	    (void) Tcl_CreateHashEntry(doneFilters, (char *) filterObj,
+		    &isNew);
+	    if (isNew) {
+		AddSimpleChainToCallContext(oPtr, filterObj, cbPtr,
+			doneFilters, clearedFlags|BUILDING_MIXINS, clsPtr);
+		AddSimpleChainToCallContext(oPtr, filterObj, cbPtr,
+			doneFilters, clearedFlags, clsPtr);
+	    }
 	}
     }
 
@@ -1309,7 +1352,8 @@ AddClassFiltersToCallContext(
 	goto tailRecurse;
     default:
 	FOREACH(superPtr, clsPtr->superclasses) {
-	    AddClassFiltersToCallContext(oPtr, superPtr, cbPtr, doneFilters);
+	    AddClassFiltersToCallContext(oPtr, superPtr, cbPtr, doneFilters,
+		    flags);
 	}
     case 0:
 	return;
@@ -1356,16 +1400,16 @@ AddSimpleClassChainToCallContext(
   tailRecurse:
     FOREACH(superPtr, classPtr->mixins) {
 	AddSimpleClassChainToCallContext(superPtr, methodNameObj, cbPtr,
-		doneFilters, flags, filterDecl);
+		doneFilters, flags|TRAVERSED_MIXIN, filterDecl);
     }
 
     if (flags & CONSTRUCTOR) {
 	AddMethodToCallChain(classPtr->constructorPtr, cbPtr, doneFilters,
-		filterDecl);
+		filterDecl, flags);
 
     } else if (flags & DESTRUCTOR) {
 	AddMethodToCallChain(classPtr->destructorPtr, cbPtr, doneFilters,
-		filterDecl);
+		filterDecl, flags);
     } else {
 	Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&classPtr->classMethods,
 		(char *) methodNameObj);
@@ -1384,7 +1428,7 @@ AddSimpleClassChainToCallContext(
 		    flags |= DEFINITE_PROTECTED;
 		}
 	    }
-	    AddMethodToCallChain(mPtr, cbPtr, doneFilters, filterDecl);
+	    AddMethodToCallChain(mPtr, cbPtr, doneFilters, filterDecl, flags);
 	}
     }
 
diff --git a/generic/tclOODecls.h b/generic/tclOODecls.h
index 6316303..9fd62ec 100644
--- a/generic/tclOODecls.h
+++ b/generic/tclOODecls.h
@@ -5,108 +5,125 @@
 #ifndef _TCLOODECLS
 #define _TCLOODECLS
 
+#ifndef TCLAPI
+#   ifdef BUILD_tcl
+#	define TCLAPI extern DLLEXPORT
+#   else
+#	define TCLAPI extern DLLIMPORT
+#   endif
+#endif
+
+#ifdef USE_TCL_STUBS
+#   undef USE_TCLOO_STUBS
+#   define USE_TCLOO_STUBS
+#endif
+
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
 
 /* 0 */
-TCLOOAPI Tcl_Object	Tcl_CopyObjectInstance(Tcl_Interp *interp,
+TCLAPI Tcl_Object	Tcl_CopyObjectInstance(Tcl_Interp *interp,
 				Tcl_Object sourceObject,
 				const char *targetName,
 				const char *targetNamespaceName);
 /* 1 */
-TCLOOAPI Tcl_Object	Tcl_GetClassAsObject(Tcl_Class clazz);
+TCLAPI Tcl_Object	Tcl_GetClassAsObject(Tcl_Class clazz);
 /* 2 */
-TCLOOAPI Tcl_Class	Tcl_GetObjectAsClass(Tcl_Object object);
+TCLAPI Tcl_Class	Tcl_GetObjectAsClass(Tcl_Object object);
 /* 3 */
-TCLOOAPI Tcl_Command	Tcl_GetObjectCommand(Tcl_Object object);
+TCLAPI Tcl_Command	Tcl_GetObjectCommand(Tcl_Object object);
 /* 4 */
-TCLOOAPI Tcl_Object	Tcl_GetObjectFromObj(Tcl_Interp *interp,
+TCLAPI Tcl_Object	Tcl_GetObjectFromObj(Tcl_Interp *interp,
 				Tcl_Obj *objPtr);
 /* 5 */
-TCLOOAPI Tcl_Namespace * Tcl_GetObjectNamespace(Tcl_Object object);
+TCLAPI Tcl_Namespace *	Tcl_GetObjectNamespace(Tcl_Object object);
 /* 6 */
-TCLOOAPI Tcl_Class	Tcl_MethodDeclarerClass(Tcl_Method method);
+TCLAPI Tcl_Class	Tcl_MethodDeclarerClass(Tcl_Method method);
 /* 7 */
-TCLOOAPI Tcl_Object	Tcl_MethodDeclarerObject(Tcl_Method method);
+TCLAPI Tcl_Object	Tcl_MethodDeclarerObject(Tcl_Method method);
 /* 8 */
-TCLOOAPI int		Tcl_MethodIsPublic(Tcl_Method method);
+TCLAPI int		Tcl_MethodIsPublic(Tcl_Method method);
 /* 9 */
-TCLOOAPI int		Tcl_MethodIsType(Tcl_Method method,
+TCLAPI int		Tcl_MethodIsType(Tcl_Method method,
 				const Tcl_MethodType *typePtr,
 				ClientData *clientDataPtr);
 /* 10 */
-TCLOOAPI Tcl_Obj *	Tcl_MethodName(Tcl_Method method);
+TCLAPI Tcl_Obj *	Tcl_MethodName(Tcl_Method method);
 /* 11 */
-TCLOOAPI Tcl_Method	Tcl_NewInstanceMethod(Tcl_Interp *interp,
+TCLAPI Tcl_Method	Tcl_NewInstanceMethod(Tcl_Interp *interp,
 				Tcl_Object object, Tcl_Obj *nameObj,
 				int isPublic, const Tcl_MethodType *typePtr,
 				ClientData clientData);
 /* 12 */
-TCLOOAPI Tcl_Method	Tcl_NewMethod(Tcl_Interp *interp, Tcl_Class cls,
+TCLAPI Tcl_Method	Tcl_NewMethod(Tcl_Interp *interp, Tcl_Class cls,
 				Tcl_Obj *nameObj, int isPublic,
 				const Tcl_MethodType *typePtr,
 				ClientData clientData);
 /* 13 */
-TCLOOAPI Tcl_Object	Tcl_NewObjectInstance(Tcl_Interp *interp,
+TCLAPI Tcl_Object	Tcl_NewObjectInstance(Tcl_Interp *interp,
 				Tcl_Class cls, const char *nameStr,
 				const char *nsNameStr, int objc,
 				Tcl_Obj *const *objv, int skip);
 /* 14 */
-TCLOOAPI int		Tcl_ObjectDeleted(Tcl_Object object);
+TCLAPI int		Tcl_ObjectDeleted(Tcl_Object object);
 /* 15 */
-TCLOOAPI int		Tcl_ObjectContextIsFiltering(
+TCLAPI int		Tcl_ObjectContextIsFiltering(
 				Tcl_ObjectContext context);
 /* 16 */
-TCLOOAPI Tcl_Method	Tcl_ObjectContextMethod(Tcl_ObjectContext context);
+TCLAPI Tcl_Method	Tcl_ObjectContextMethod(Tcl_ObjectContext context);
 /* 17 */
-TCLOOAPI Tcl_Object	Tcl_ObjectContextObject(Tcl_ObjectContext context);
+TCLAPI Tcl_Object	Tcl_ObjectContextObject(Tcl_ObjectContext context);
 /* 18 */
-TCLOOAPI int		Tcl_ObjectContextSkippedArgs(
+TCLAPI int		Tcl_ObjectContextSkippedArgs(
 				Tcl_ObjectContext context);
 /* 19 */
-TCLOOAPI ClientData	Tcl_ClassGetMetadata(Tcl_Class clazz,
+TCLAPI ClientData	Tcl_ClassGetMetadata(Tcl_Class clazz,
 				const Tcl_ObjectMetadataType *typePtr);
 /* 20 */
-TCLOOAPI void		Tcl_ClassSetMetadata(Tcl_Class clazz,
+TCLAPI void		Tcl_ClassSetMetadata(Tcl_Class clazz,
 				const Tcl_ObjectMetadataType *typePtr,
 				ClientData metadata);
 /* 21 */
-TCLOOAPI ClientData	Tcl_ObjectGetMetadata(Tcl_Object object,
+TCLAPI ClientData	Tcl_ObjectGetMetadata(Tcl_Object object,
 				const Tcl_ObjectMetadataType *typePtr);
 /* 22 */
-TCLOOAPI void		Tcl_ObjectSetMetadata(Tcl_Object object,
+TCLAPI void		Tcl_ObjectSetMetadata(Tcl_Object object,
 				const Tcl_ObjectMetadataType *typePtr,
 				ClientData metadata);
 /* 23 */
-TCLOOAPI int		Tcl_ObjectContextInvokeNext(Tcl_Interp *interp,
+TCLAPI int		Tcl_ObjectContextInvokeNext(Tcl_Interp *interp,
 				Tcl_ObjectContext context, int objc,
 				Tcl_Obj *const *objv, int skip);
 /* 24 */
-TCLOOAPI Tcl_ObjectMapMethodNameProc * Tcl_ObjectGetMethodNameMapper(
+TCLAPI Tcl_ObjectMapMethodNameProc * Tcl_ObjectGetMethodNameMapper(
 				Tcl_Object object);
 /* 25 */
-TCLOOAPI void		Tcl_ObjectSetMethodNameMapper(Tcl_Object object,
+TCLAPI void		Tcl_ObjectSetMethodNameMapper(Tcl_Object object,
 				Tcl_ObjectMapMethodNameProc *mapMethodNameProc);
 /* 26 */
-TCLOOAPI void		Tcl_ClassSetConstructor(Tcl_Interp *interp,
+TCLAPI void		Tcl_ClassSetConstructor(Tcl_Interp *interp,
 				Tcl_Class clazz, Tcl_Method method);
 /* 27 */
-TCLOOAPI void		Tcl_ClassSetDestructor(Tcl_Interp *interp,
+TCLAPI void		Tcl_ClassSetDestructor(Tcl_Interp *interp,
 				Tcl_Class clazz, Tcl_Method method);
 /* 28 */
-TCLOOAPI Tcl_Obj *	Tcl_GetObjectName(Tcl_Interp *interp,
+TCLAPI Tcl_Obj *	Tcl_GetObjectName(Tcl_Interp *interp,
 				Tcl_Object object);
 
-typedef struct TclOOStubHooks {
+typedef struct {
     const struct TclOOIntStubs *tclOOIntStubs;
 } TclOOStubHooks;
 
 typedef struct TclOOStubs {
     int magic;
-    const struct TclOOStubHooks *hooks;
+    const TclOOStubHooks *hooks;
 
     Tcl_Object (*tcl_CopyObjectInstance) (Tcl_Interp *interp, Tcl_Object sourceObject, const char *targetName, const char *targetNamespaceName); /* 0 */
     Tcl_Object (*tcl_GetClassAsObject) (Tcl_Class clazz); /* 1 */
@@ -139,10 +156,8 @@ typedef struct TclOOStubs {
     Tcl_Obj * (*tcl_GetObjectName) (Tcl_Interp *interp, Tcl_Object object); /* 28 */
 } TclOOStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern const TclOOStubs *tclOOStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
@@ -215,4 +230,5 @@ extern const TclOOStubs *tclOOStubsPtr;
 #endif /* defined(USE_TCLOO_STUBS) */
 
 /* !END!: Do not edit above this line. */
+
 #endif /* _TCLOODECLS */
diff --git a/generic/tclOODefineCmds.c b/generic/tclOODefineCmds.c
index bacab38..5a6c0ad 100644
--- a/generic/tclOODefineCmds.c
+++ b/generic/tclOODefineCmds.c
@@ -4,7 +4,7 @@
  *	This file contains the implementation of the ::oo::define command,
  *	part of the object-system core (NB: not Tcl_Obj, but ::oo).
  *
- * Copyright (c) 2006-2012 by Donal K. Fellows
+ * Copyright (c) 2006-2013 by Donal K. Fellows
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -2206,29 +2206,42 @@ ClassSuperSet(
 
     /*
      * Parse the arguments to get the class to use as superclasses.
+     *
+     * Note that zero classes is special, as it is equivalent to just the
+     * class of objects. [Bug 9d61624b3d]
      */
 
-    for (i=0 ; i<superc ; i++) {
-	superclasses[i] = GetClassInOuterContext(interp, superv[i],
-		"only a class can be a superclass");
-	if (superclasses[i] == NULL) {
-	    goto failedAfterAlloc;
+    if (superc == 0) {
+	superclasses = ckrealloc(superclasses, sizeof(Class *));
+	superclasses[0] = oPtr->fPtr->objectCls;
+	superc = 1;
+	if (TclOOIsReachable(oPtr->fPtr->classCls, oPtr->classPtr)) {
+	    superclasses[0] = oPtr->fPtr->classCls;
 	}
-	for (j=0 ; j<i ; j++) {
-	    if (superclasses[j] == superclasses[i]) {
-		Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			"class should only be a direct superclass once", -1));
-		Tcl_SetErrorCode(interp, "TCL", "OO", "REPETITIOUS", NULL);
+    } else {
+	for (i=0 ; i<superc ; i++) {
+	    superclasses[i] = GetClassInOuterContext(interp, superv[i],
+		    "only a class can be a superclass");
+	    if (superclasses[i] == NULL) {
 		goto failedAfterAlloc;
 	    }
-	}
-	if (TclOOIsReachable(oPtr->classPtr, superclasses[i])) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "attempt to form circular dependency graph", -1));
-	    Tcl_SetErrorCode(interp, "TCL", "OO", "CIRCULARITY", NULL);
-	failedAfterAlloc:
-	    ckfree((char *) superclasses);
-	    return TCL_ERROR;
+	    for (j=0 ; j<i ; j++) {
+		if (superclasses[j] == superclasses[i]) {
+		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			    "class should only be a direct superclass once",
+			    -1));
+		    Tcl_SetErrorCode(interp, "TCL", "OO", "REPETITIOUS",NULL);
+		    goto failedAfterAlloc;
+		}
+	    }
+	    if (TclOOIsReachable(oPtr->classPtr, superclasses[i])) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"attempt to form circular dependency graph", -1));
+		Tcl_SetErrorCode(interp, "TCL", "OO", "CIRCULARITY", NULL);
+	    failedAfterAlloc:
+		ckfree((char *) superclasses);
+		return TCL_ERROR;
+	    }
 	}
     }
 
diff --git a/generic/tclOOInfo.c b/generic/tclOOInfo.c
index 1a94e69..3217f98 100644
--- a/generic/tclOOInfo.c
+++ b/generic/tclOOInfo.c
@@ -43,47 +43,45 @@ static Tcl_ObjCmdProc InfoClassSubsCmd;
 static Tcl_ObjCmdProc InfoClassSupersCmd;
 static Tcl_ObjCmdProc InfoClassVariablesCmd;
 
-struct NameProcMap { const char *name; Tcl_ObjCmdProc *proc; };
-
 /*
  * List of commands that are used to implement the [info object] subcommands.
  */
 
-static const struct NameProcMap infoObjectCmds[] = {
-    {"::oo::InfoObject::call",		InfoObjectCallCmd},
-    {"::oo::InfoObject::class",		InfoObjectClassCmd},
-    {"::oo::InfoObject::definition",	InfoObjectDefnCmd},
-    {"::oo::InfoObject::filters",	InfoObjectFiltersCmd},
-    {"::oo::InfoObject::forward",	InfoObjectForwardCmd},
-    {"::oo::InfoObject::isa",		InfoObjectIsACmd},
-    {"::oo::InfoObject::methods",	InfoObjectMethodsCmd},
-    {"::oo::InfoObject::methodtype",	InfoObjectMethodTypeCmd},
-    {"::oo::InfoObject::mixins",	InfoObjectMixinsCmd},
-    {"::oo::InfoObject::namespace",	InfoObjectNsCmd},
-    {"::oo::InfoObject::variables",	InfoObjectVariablesCmd},
-    {"::oo::InfoObject::vars",		InfoObjectVarsCmd},
-    {NULL, NULL}
+static const EnsembleImplMap infoObjectCmds[] = {
+    {"call",	   InfoObjectCallCmd,	    TclCompileBasic2ArgCmd, NULL, NULL, 0},
+    {"class",	   InfoObjectClassCmd,	    TclCompileInfoObjectClassCmd, NULL, NULL, 0},
+    {"definition", InfoObjectDefnCmd,	    TclCompileBasic2ArgCmd, NULL, NULL, 0},
+    {"filters",	   InfoObjectFiltersCmd,    TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"forward",	   InfoObjectForwardCmd,    TclCompileBasic2ArgCmd, NULL, NULL, 0},
+    {"isa",	   InfoObjectIsACmd,	    TclCompileInfoObjectIsACmd, NULL, NULL, 0},
+    {"methods",	   InfoObjectMethodsCmd,    TclCompileBasicMin1ArgCmd, NULL, NULL, 0},
+    {"methodtype", InfoObjectMethodTypeCmd, TclCompileBasic2ArgCmd, NULL, NULL, 0},
+    {"mixins",	   InfoObjectMixinsCmd,	    TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"namespace",  InfoObjectNsCmd,	    TclCompileInfoObjectNamespaceCmd, NULL, NULL, 0},
+    {"variables",  InfoObjectVariablesCmd,  TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"vars",	   InfoObjectVarsCmd,	    TclCompileBasic1Or2ArgCmd, NULL, NULL, 0},
+    {NULL, NULL, NULL, NULL, NULL, 0}
 };
 
 /*
  * List of commands that are used to implement the [info class] subcommands.
  */
 
-static const struct NameProcMap infoClassCmds[] = {
-    {"::oo::InfoClass::call",		InfoClassCallCmd},
-    {"::oo::InfoClass::constructor",	InfoClassConstrCmd},
-    {"::oo::InfoClass::definition",	InfoClassDefnCmd},
-    {"::oo::InfoClass::destructor",	InfoClassDestrCmd},
-    {"::oo::InfoClass::filters",	InfoClassFiltersCmd},
-    {"::oo::InfoClass::forward",	InfoClassForwardCmd},
-    {"::oo::InfoClass::instances",	InfoClassInstancesCmd},
-    {"::oo::InfoClass::methods",	InfoClassMethodsCmd},
-    {"::oo::InfoClass::methodtype",	InfoClassMethodTypeCmd},
-    {"::oo::InfoClass::mixins",		InfoClassMixinsCmd},
-    {"::oo::InfoClass::subclasses",	InfoClassSubsCmd},
-    {"::oo::InfoClass::superclasses",	InfoClassSupersCmd},
-    {"::oo::InfoClass::variables",	InfoClassVariablesCmd},
-    {NULL, NULL}
+static const EnsembleImplMap infoClassCmds[] = {
+    {"call",	     InfoClassCallCmd,		TclCompileBasic2ArgCmd, NULL, NULL, 0},
+    {"constructor",  InfoClassConstrCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"definition",   InfoClassDefnCmd,		TclCompileBasic2ArgCmd, NULL, NULL, 0},
+    {"destructor",   InfoClassDestrCmd,		TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"filters",	     InfoClassFiltersCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"forward",	     InfoClassForwardCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+    {"instances",    InfoClassInstancesCmd,	TclCompileBasic1Or2ArgCmd, NULL, NULL, 0},
+    {"methods",	     InfoClassMethodsCmd,	TclCompileBasicMin1ArgCmd, NULL, NULL, 0},
+    {"methodtype",   InfoClassMethodTypeCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+    {"mixins",	     InfoClassMixinsCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"subclasses",   InfoClassSubsCmd,		TclCompileBasic1Or2ArgCmd, NULL, NULL, 0},
+    {"superclasses", InfoClassSupersCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {"variables",    InfoClassVariablesCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+    {NULL, NULL, NULL, NULL, NULL, 0}
 };
 
 /*
@@ -101,58 +99,27 @@ void
 TclOOInitInfo(
     Tcl_Interp *interp)
 {
-    Tcl_Namespace *nsPtr;
     Tcl_Command infoCmd;
-    int i;
-
-    /*
-     * Build the ensemble used to implement [info object].
-     */
-
-    nsPtr = Tcl_CreateNamespace(interp, "::oo::InfoObject", NULL, NULL);
-    Tcl_CreateEnsemble(interp, nsPtr->fullName, nsPtr, TCL_ENSEMBLE_PREFIX);
-    Tcl_Export(interp, nsPtr, "[a-z]*", 1);
-    for (i=0 ; infoObjectCmds[i].name!=NULL ; i++) {
-	Tcl_CreateObjCommand(interp, infoObjectCmds[i].name,
-		infoObjectCmds[i].proc, NULL, NULL);
-    }
+    Tcl_Obj *mapDict;
 
     /*
-     * Build the ensemble used to implement [info class].
+     * Build the ensembles used to implement [info object] and [info class].
      */
 
-    nsPtr = Tcl_CreateNamespace(interp, "::oo::InfoClass", NULL, NULL);
-    Tcl_CreateEnsemble(interp, nsPtr->fullName, nsPtr, TCL_ENSEMBLE_PREFIX);
-    Tcl_Export(interp, nsPtr, "[a-z]*", 1);
-    for (i=0 ; infoClassCmds[i].name!=NULL ; i++) {
-	Tcl_CreateObjCommand(interp, infoClassCmds[i].name,
-		infoClassCmds[i].proc, NULL, NULL);
-    }
+    TclMakeEnsemble(interp, "::oo::InfoObject", infoObjectCmds);
+    TclMakeEnsemble(interp, "::oo::InfoClass", infoClassCmds);
 
     /*
      * Install into the master [info] ensemble.
      */
 
     infoCmd = Tcl_FindCommand(interp, "info", NULL, TCL_GLOBAL_ONLY);
-    if (infoCmd != NULL && Tcl_IsEnsemble(infoCmd)) {
-	Tcl_Obj *mapDict, *objectObj, *classObj;
-
-	Tcl_GetEnsembleMappingDict(NULL, infoCmd, &mapDict);
-	if (mapDict != NULL) {
-	    objectObj = Tcl_NewStringObj("object", -1);
-	    classObj = Tcl_NewStringObj("class", -1);
-
-	    Tcl_IncrRefCount(objectObj);
-	    Tcl_IncrRefCount(classObj);
-	    Tcl_DictObjPut(NULL, mapDict, objectObj,
-		    Tcl_NewStringObj("::oo::InfoObject", -1));
-	    Tcl_DictObjPut(NULL, mapDict, classObj,
-		    Tcl_NewStringObj("::oo::InfoClass", -1));
-	    Tcl_DecrRefCount(objectObj);
-	    Tcl_DecrRefCount(classObj);
-	    Tcl_SetEnsembleMappingDict(interp, infoCmd, mapDict);
-	}
-    }
+    Tcl_GetEnsembleMappingDict(NULL, infoCmd, &mapDict);
+    Tcl_DictObjPut(NULL, mapDict, Tcl_NewStringObj("object", -1),
+	    Tcl_NewStringObj("::oo::InfoObject", -1));
+    Tcl_DictObjPut(NULL, mapDict, Tcl_NewStringObj("class", -1),
+	    Tcl_NewStringObj("::oo::InfoClass", -1));
+    Tcl_SetEnsembleMappingDict(interp, infoCmd, mapDict);
 }
 
 /*
diff --git a/generic/tclOOInt.h b/generic/tclOOInt.h
index ab54964..c0e4022 100644
--- a/generic/tclOOInt.h
+++ b/generic/tclOOInt.h
@@ -122,12 +122,6 @@ typedef struct ForwardMethod {
     Tcl_Obj *prefixObj;		/* The list of values to use to replace the
 				 * object and method name with. Will be a
 				 * non-empty list. */
-    int fullyQualified;		/* If 1, the command name is fully qualified
-				 * and we should let the default Tcl mechanism
-				 * handle the command lookup because it is
-				 * more efficient. If 0, we need to do a
-				 * specialized lookup based on the current
-				 * object's namespace. */
 } ForwardMethod;
 
 /*
diff --git a/generic/tclOOIntDecls.h b/generic/tclOOIntDecls.h
index c751838..74a8d81 100644
--- a/generic/tclOOIntDecls.h
+++ b/generic/tclOOIntDecls.h
@@ -7,51 +7,55 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
 
 /* 0 */
-TCLOOAPI Tcl_Object	TclOOGetDefineCmdContext(Tcl_Interp *interp);
+TCLAPI Tcl_Object	TclOOGetDefineCmdContext(Tcl_Interp *interp);
 /* 1 */
-TCLOOAPI Tcl_Method	TclOOMakeProcInstanceMethod(Tcl_Interp *interp,
+TCLAPI Tcl_Method	TclOOMakeProcInstanceMethod(Tcl_Interp *interp,
 				Object *oPtr, int flags, Tcl_Obj *nameObj,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				const Tcl_MethodType *typePtr,
 				ClientData clientData, Proc **procPtrPtr);
 /* 2 */
-TCLOOAPI Tcl_Method	TclOOMakeProcMethod(Tcl_Interp *interp,
+TCLAPI Tcl_Method	TclOOMakeProcMethod(Tcl_Interp *interp,
 				Class *clsPtr, int flags, Tcl_Obj *nameObj,
 				const char *namePtr, Tcl_Obj *argsObj,
 				Tcl_Obj *bodyObj,
 				const Tcl_MethodType *typePtr,
 				ClientData clientData, Proc **procPtrPtr);
 /* 3 */
-TCLOOAPI Method *	TclOONewProcInstanceMethod(Tcl_Interp *interp,
+TCLAPI Method *		TclOONewProcInstanceMethod(Tcl_Interp *interp,
 				Object *oPtr, int flags, Tcl_Obj *nameObj,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				ProcedureMethod **pmPtrPtr);
 /* 4 */
-TCLOOAPI Method *	TclOONewProcMethod(Tcl_Interp *interp, Class *clsPtr,
+TCLAPI Method *		TclOONewProcMethod(Tcl_Interp *interp, Class *clsPtr,
 				int flags, Tcl_Obj *nameObj,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				ProcedureMethod **pmPtrPtr);
 /* 5 */
-TCLOOAPI int		TclOOObjectCmdCore(Object *oPtr, Tcl_Interp *interp,
+TCLAPI int		TclOOObjectCmdCore(Object *oPtr, Tcl_Interp *interp,
 				int objc, Tcl_Obj *const *objv,
 				int publicOnly, Class *startCls);
 /* 6 */
-TCLOOAPI int		TclOOIsReachable(Class *targetPtr, Class *startPtr);
+TCLAPI int		TclOOIsReachable(Class *targetPtr, Class *startPtr);
 /* 7 */
-TCLOOAPI Method *	TclOONewForwardMethod(Tcl_Interp *interp,
+TCLAPI Method *		TclOONewForwardMethod(Tcl_Interp *interp,
 				Class *clsPtr, int isPublic,
 				Tcl_Obj *nameObj, Tcl_Obj *prefixObj);
 /* 8 */
-TCLOOAPI Method *	TclOONewForwardInstanceMethod(Tcl_Interp *interp,
+TCLAPI Method *		TclOONewForwardInstanceMethod(Tcl_Interp *interp,
 				Object *oPtr, int isPublic, Tcl_Obj *nameObj,
 				Tcl_Obj *prefixObj);
 /* 9 */
-TCLOOAPI Tcl_Method	TclOONewProcInstanceMethodEx(Tcl_Interp *interp,
+TCLAPI Tcl_Method	TclOONewProcInstanceMethodEx(Tcl_Interp *interp,
 				Tcl_Object oPtr,
 				TclOO_PreCallProc *preCallPtr,
 				TclOO_PostCallProc *postCallPtr,
@@ -60,7 +64,7 @@ TCLOOAPI Tcl_Method	TclOONewProcInstanceMethodEx(Tcl_Interp *interp,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				int flags, void **internalTokenPtr);
 /* 10 */
-TCLOOAPI Tcl_Method	TclOONewProcMethodEx(Tcl_Interp *interp,
+TCLAPI Tcl_Method	TclOONewProcMethodEx(Tcl_Interp *interp,
 				Tcl_Class clsPtr,
 				TclOO_PreCallProc *preCallPtr,
 				TclOO_PostCallProc *postCallPtr,
@@ -69,28 +73,28 @@ TCLOOAPI Tcl_Method	TclOONewProcMethodEx(Tcl_Interp *interp,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				int flags, void **internalTokenPtr);
 /* 11 */
-TCLOOAPI int		TclOOInvokeObject(Tcl_Interp *interp,
+TCLAPI int		TclOOInvokeObject(Tcl_Interp *interp,
 				Tcl_Object object, Tcl_Class startCls,
 				int publicPrivate, int objc,
 				Tcl_Obj *const *objv);
 /* 12 */
-TCLOOAPI void		TclOOObjectSetFilters(Object *oPtr, int numFilters,
+TCLAPI void		TclOOObjectSetFilters(Object *oPtr, int numFilters,
 				Tcl_Obj *const *filters);
 /* 13 */
-TCLOOAPI void		TclOOClassSetFilters(Tcl_Interp *interp,
+TCLAPI void		TclOOClassSetFilters(Tcl_Interp *interp,
 				Class *classPtr, int numFilters,
 				Tcl_Obj *const *filters);
 /* 14 */
-TCLOOAPI void		TclOOObjectSetMixins(Object *oPtr, int numMixins,
+TCLAPI void		TclOOObjectSetMixins(Object *oPtr, int numMixins,
 				Class *const *mixins);
 /* 15 */
-TCLOOAPI void		TclOOClassSetMixins(Tcl_Interp *interp,
+TCLAPI void		TclOOClassSetMixins(Tcl_Interp *interp,
 				Class *classPtr, int numMixins,
 				Class *const *mixins);
 
 typedef struct TclOOIntStubs {
     int magic;
-    const struct TclOOIntStubHooks *hooks;
+    void *hooks;
 
     Tcl_Object (*tclOOGetDefineCmdContext) (Tcl_Interp *interp); /* 0 */
     Tcl_Method (*tclOOMakeProcInstanceMethod) (Tcl_Interp *interp, Object *oPtr, int flags, Tcl_Obj *nameObj, Tcl_Obj *argsObj, Tcl_Obj *bodyObj, const Tcl_MethodType *typePtr, ClientData clientData, Proc **procPtrPtr); /* 1 */
@@ -110,10 +114,8 @@ typedef struct TclOOIntStubs {
     void (*tclOOClassSetMixins) (Tcl_Interp *interp, Class *classPtr, int numMixins, Class *const *mixins); /* 15 */
 } TclOOIntStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern const TclOOIntStubs *tclOOIntStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
@@ -160,4 +162,5 @@ extern const TclOOIntStubs *tclOOIntStubsPtr;
 #endif /* defined(USE_TCLOO_STUBS) */
 
 /* !END!: Do not edit above this line. */
+
 #endif /* _TCLOOINTDECLS */
diff --git a/generic/tclOOMethod.c b/generic/tclOOMethod.c
index 28820e0..61215de 100644
--- a/generic/tclOOMethod.c
+++ b/generic/tclOOMethod.c
@@ -513,8 +513,8 @@ TclOOMakeProcInstanceMethod(
 		cfPtr->data.eval.path = context.data.eval.path;
 		Tcl_IncrRefCount(cfPtr->data.eval.path);
 
-		cfPtr->cmd.str.cmd = NULL;
-		cfPtr->cmd.str.len = 0;
+		cfPtr->cmd = NULL;
+		cfPtr->len = 0;
 
 		hPtr = Tcl_CreateHashEntry(iPtr->linePBodyPtr,
 			(char *) procPtr, &isNew);
@@ -626,8 +626,8 @@ TclOOMakeProcMethod(
 		cfPtr->data.eval.path = context.data.eval.path;
 		Tcl_IncrRefCount(cfPtr->data.eval.path);
 
-		cfPtr->cmd.str.cmd = NULL;
-		cfPtr->cmd.str.len = 0;
+		cfPtr->cmd = NULL;
+		cfPtr->len = 0;
 
 		hPtr = Tcl_CreateHashEntry(iPtr->linePBodyPtr,
 			(char *) procPtr, &isNew);
@@ -860,7 +860,7 @@ PushMethodCallFrame(
 
     if (pmPtr->procPtr->bodyPtr->typePtr == &tclByteCodeType) {
 	ByteCode *codePtr =
-		pmPtr->procPtr->bodyPtr->internalRep.otherValuePtr;
+		pmPtr->procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;
 
 	codePtr->nsPtr = nsPtr;
     }
@@ -1290,11 +1290,57 @@ CloneProcedureMethod(
     ClientData *newClientData)
 {
     ProcedureMethod *pmPtr = clientData;
-    ProcedureMethod *pm2Ptr = ckalloc(sizeof(ProcedureMethod));
+    ProcedureMethod *pm2Ptr;
+    Tcl_Obj *bodyObj, *argsObj;
+    CompiledLocal *localPtr;
 
+    /*
+     * Copy the argument list.
+     */
+
+    argsObj = Tcl_NewObj();
+    for (localPtr=pmPtr->procPtr->firstLocalPtr; localPtr!=NULL;
+	    localPtr=localPtr->nextPtr) {
+	if (TclIsVarArgument(localPtr)) {
+	    Tcl_Obj *argObj = Tcl_NewObj();
+
+	    Tcl_ListObjAppendElement(NULL, argObj,
+		    Tcl_NewStringObj(localPtr->name, -1));
+	    if (localPtr->defValuePtr != NULL) {
+		Tcl_ListObjAppendElement(NULL, argObj, localPtr->defValuePtr);
+	    }
+	    Tcl_ListObjAppendElement(NULL, argsObj, argObj);
+	}
+    }
+
+    /*
+     * Must strip the internal representation in order to ensure that any
+     * bound references to instance variables are removed. [Bug 3609693]
+     */
+
+    bodyObj = Tcl_DuplicateObj(pmPtr->procPtr->bodyPtr);
+    TclFreeIntRep(bodyObj);
+
+    /*
+     * Create the actual copy of the method record, manufacturing a new proc
+     * record.
+     */
+
+    pm2Ptr = ckalloc(sizeof(ProcedureMethod));
     memcpy(pm2Ptr, pmPtr, sizeof(ProcedureMethod));
     pm2Ptr->refCount = 1;
-    pm2Ptr->procPtr->refCount++;
+    Tcl_IncrRefCount(argsObj);
+    Tcl_IncrRefCount(bodyObj);
+    if (TclCreateProc(interp, NULL, "", argsObj, bodyObj,
+	    &pm2Ptr->procPtr) != TCL_OK) {
+	Tcl_DecrRefCount(argsObj);
+	Tcl_DecrRefCount(bodyObj);
+	ckfree(pm2Ptr);
+	return TCL_ERROR;
+    }
+    Tcl_DecrRefCount(argsObj);
+    Tcl_DecrRefCount(bodyObj);
+
     if (pmPtr->cloneClientdataProc) {
 	pm2Ptr->clientData = pmPtr->cloneClientdataProc(pmPtr->clientData);
     }
@@ -1338,7 +1384,6 @@ TclOONewForwardInstanceMethod(
     fmPtr = ckalloc(sizeof(ForwardMethod));
     fmPtr->prefixObj = prefixObj;
     Tcl_ListObjIndex(interp, prefixObj, 0, &cmdObj);
-    fmPtr->fullyQualified = (strncmp(TclGetString(cmdObj), "::", 2) == 0);
     Tcl_IncrRefCount(prefixObj);
     return (Method *) Tcl_NewInstanceMethod(interp, (Tcl_Object) oPtr,
 	    nameObj, flags, &fwdMethodType, fmPtr);
@@ -1380,7 +1425,6 @@ TclOONewForwardMethod(
     fmPtr = ckalloc(sizeof(ForwardMethod));
     fmPtr->prefixObj = prefixObj;
     Tcl_ListObjIndex(interp, prefixObj, 0, &cmdObj);
-    fmPtr->fullyQualified = (strncmp(TclGetString(cmdObj), "::", 2) == 0);
     Tcl_IncrRefCount(prefixObj);
     return (Method *) Tcl_NewMethod(interp, (Tcl_Class) clsPtr, nameObj,
 	    flags, &fwdMethodType, fmPtr);
@@ -1409,7 +1453,6 @@ InvokeForwardMethod(
     ForwardMethod *fmPtr = clientData;
     Tcl_Obj **argObjs, **prefixObjs;
     int numPrefixes, len, skip = contextPtr->skip;
-    Command *cmdPtr;
 
     /*
      * Build the real list of arguments to use. Note that we know that the
@@ -1421,15 +1464,10 @@ InvokeForwardMethod(
     Tcl_ListObjGetElements(NULL, fmPtr->prefixObj, &numPrefixes, &prefixObjs);
     argObjs = InitEnsembleRewrite(interp, objc, objv, skip,
 	    numPrefixes, prefixObjs, &len);
-
-    if (fmPtr->fullyQualified) {
-	cmdPtr = NULL;
-    } else {
-	cmdPtr = (Command *) Tcl_FindCommand(interp, TclGetString(argObjs[0]),
-		contextPtr->oPtr->namespacePtr, 0 /* normal lookup */);
-    }
     Tcl_NRAddCallback(interp, FinalizeForwardCall, argObjs, NULL, NULL, NULL);
-    return TclNREvalObjv(interp, len, argObjs, TCL_EVAL_INVOKE, cmdPtr);
+    ((Interp *)interp)->lookupNsPtr
+	    = (Namespace *) contextPtr->oPtr->namespacePtr;
+    return TclNREvalObjv(interp, len, argObjs, TCL_EVAL_NOERR, NULL);
 }
 
 static int
@@ -1474,7 +1512,6 @@ CloneForwardMethod(
     ForwardMethod *fm2Ptr = ckalloc(sizeof(ForwardMethod));
 
     fm2Ptr->prefixObj = fmPtr->prefixObj;
-    fm2Ptr->fullyQualified = fmPtr->fullyQualified;
     Tcl_IncrRefCount(fm2Ptr->prefixObj);
     *newClientData = fm2Ptr;
     return TCL_OK;
diff --git a/generic/tclOOStubLib.c b/generic/tclOOStubLib.c
index 55f2378..a9fa212 100644
--- a/generic/tclOOStubLib.c
+++ b/generic/tclOOStubLib.c
@@ -2,19 +2,6 @@
  * ORIGINAL SOURCE: tk/generic/tkStubLib.c, version 1.9 2004/03/17
  */
 
-/*
- * We need to ensure that we use the tcl stub macros so that this file
- * contains no references to any of the tcl stub functions.
- */
-
-#undef USE_TCL_STUBS
-#define USE_TCL_STUBS
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#define USE_TCLOO_STUBS 1
 #include "tclOOInt.h"
 
 MODULE_SCOPE const TclOOStubs *tclOOStubsPtr;
@@ -35,51 +22,50 @@ const TclOOIntStubs *tclOOIntStubsPtr = NULL;
  *	to indicate that an error occurred.
  *
  * Side effects:
- *	Sets the stub table pointer.
+ *	Sets the stub table pointers.
  *
  *----------------------------------------------------------------------
  */
 
+#undef TclOOInitializeStubs
+
 MODULE_SCOPE const char *
 TclOOInitializeStubs(
-    Tcl_Interp *interp, const char *version)
+    Tcl_Interp *interp,
+    const char *version)
 {
     int exact = 0;
     const char *packageName = "TclOO";
     const char *errMsg = NULL;
-    ClientData clientData = NULL;
-    const char *actualVersion =
-	    Tcl_PkgRequireEx(interp, packageName,version, exact, &clientData);
+    TclOOStubs *stubsPtr = NULL;
+    const char *actualVersion = tclStubsPtr->tcl_PkgRequireEx(interp,
+	    packageName, version, exact, &stubsPtr);
 
-    if (clientData == NULL) {
-	Tcl_ResetResult(interp);
-	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		"error loading %s package; package not present or incomplete",
-		packageName));
+    if (actualVersion == NULL) {
 	return NULL;
+    }
+    if (stubsPtr == NULL) {
+	errMsg = "missing stub table pointer";
     } else {
-	const TclOOStubs * const stubsPtr = clientData;
-	const TclOOIntStubs * const intStubsPtr = stubsPtr->hooks ?
-		stubsPtr->hooks->tclOOIntStubs : NULL;
-
-	if (!actualVersion) {
-	    return NULL;
-	}
-
-	if (!stubsPtr || !intStubsPtr) {
-	    errMsg = "missing stub table pointer";
-	    goto error;
-	}
-
 	tclOOStubsPtr = stubsPtr;
-	tclOOIntStubsPtr = intStubsPtr;
+	if (stubsPtr->hooks) {
+	    tclOOIntStubsPtr = stubsPtr->hooks->tclOOIntStubs;
+	} else {
+	    tclOOIntStubsPtr = NULL;
+	}
 	return actualVersion;
-
-    error:
-	Tcl_ResetResult(interp);
-	Tcl_SetObjResult(interp, Tcl_ObjPrintf("Error loading %s package"
-		" (requested version '%s', loaded version '%s'): %s",
-		packageName, version, actualVersion, errMsg));
-	return NULL;
     }
+    tclStubsPtr->tcl_ResetResult(interp);
+    tclStubsPtr->tcl_AppendResult(interp, "Error loading ", packageName,
+	    " (requested version ", version, ", actual version ",
+	    actualVersion, "): ", errMsg, NULL);
+    return NULL;
 }
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
diff --git a/generic/tclObj.c b/generic/tclObj.c
index 74cb29e..9caca72 100644
--- a/generic/tclObj.c
+++ b/generic/tclObj.c
@@ -97,7 +97,6 @@ typedef struct ThreadSpecificData {
 
 static Tcl_ThreadDataKey dataKey;
 
-static void             ContLineLocFree(char *clientData);
 static void             TclThreadFinalizeContLines(ClientData clientData);
 static ThreadSpecificData *TclGetContLineTable(void);
 
@@ -208,12 +207,11 @@ static Tcl_ThreadDataKey pendingObjDataKey;
  */
 
 static int		ParseBoolean(Tcl_Obj *objPtr);
-static int		SetBooleanFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr);
 static int		SetDoubleFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr);
 static int		SetIntFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr);
 static void		UpdateStringOfDouble(Tcl_Obj *objPtr);
 static void		UpdateStringOfInt(Tcl_Obj *objPtr);
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 static void		UpdateStringOfWideInt(Tcl_Obj *objPtr);
 static int		SetWideIntFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr);
 #endif
@@ -250,14 +248,14 @@ static const Tcl_ObjType oldBooleanType = {
     NULL,			/* freeIntRepProc */
     NULL,			/* dupIntRepProc */
     NULL,			/* updateStringProc */
-    SetBooleanFromAny		/* setFromAnyProc */
+    TclSetBooleanFromAny		/* setFromAnyProc */
 };
 const Tcl_ObjType tclBooleanType = {
     "booleanString",		/* name */
     NULL,			/* freeIntRepProc */
     NULL,			/* dupIntRepProc */
     NULL,			/* updateStringProc */
-    SetBooleanFromAny		/* setFromAnyProc */
+    TclSetBooleanFromAny		/* setFromAnyProc */
 };
 const Tcl_ObjType tclDoubleType = {
     "double",			/* name */
@@ -273,7 +271,7 @@ const Tcl_ObjType tclIntType = {
     UpdateStringOfInt,		/* updateStringProc */
     SetIntFromAny		/* setFromAnyProc */
 };
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 const Tcl_ObjType tclWideIntType = {
     "wideInt",			/* name */
     NULL,			/* freeIntRepProc */
@@ -411,7 +409,7 @@ TclInitObjSubsystem(void)
 
     /* For backward compatibility only ... */
     Tcl_RegisterObjType(&oldBooleanType);
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
     Tcl_RegisterObjType(&tclWideIntType);
 #endif
 
@@ -806,14 +804,7 @@ TclThreadFinalizeContLines(
 
     for (hPtr = Tcl_FirstHashEntry(tsdPtr->lineCLPtr, &hSearch);
 	    hPtr != NULL; hPtr = Tcl_NextHashEntry(&hSearch)) {
-	/*
-	 * We are not using Tcl_EventuallyFree (as in TclFreeObj()) because
-	 * here we can be sure that the compiler will not hold references to
-	 * the data in the hashtable, and using TEF might bork the
-	 * finalization sequence.
-	 */
-
-	ContLineLocFree(Tcl_GetHashValue(hPtr));
+	ckfree(Tcl_GetHashValue(hPtr));
 	Tcl_DeleteHashEntry(hPtr);
     }
     Tcl_DeleteHashTable(tsdPtr->lineCLPtr);
@@ -822,30 +813,6 @@ TclThreadFinalizeContLines(
 }
 
 /*
- *----------------------------------------------------------------------
- *
- * ContLineLocFree --
- *
- *	The freProc for continuation line location tables.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	Releases memory.
- *
- * TIP #280
- *----------------------------------------------------------------------
- */
-
-static void
-ContLineLocFree(
-    char *clientData)
-{
-    ckfree(clientData);
-}
-
-/*
  *--------------------------------------------------------------
  *
  * Tcl_RegisterObjType --
@@ -1006,7 +973,12 @@ Tcl_ConvertToType(
      */
 
     if (typePtr->setFromAnyProc == NULL) {
-	Tcl_Panic("may not convert object to type %s", typePtr->name);
+	if (interp) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "can't convert value to type %s", typePtr->name));
+	    Tcl_SetErrorCode(interp, "TCL", "API_ABUSE", NULL);
+	}
+	return TCL_ERROR;
     }
 
     return typePtr->setFromAnyProc(interp, objPtr);
@@ -1255,7 +1227,7 @@ Tcl_DbNewObj(
  * Side effects:
  *	tclFreeObjList, the head of the list of free Tcl_Objs, is set to the
  *	first of a number of free Tcl_Obj's linked together by their
- *	internalRep.otherValuePtrs.
+ *	internalRep.twoPtrValue.ptr1's.
  *
  *----------------------------------------------------------------------
  */
@@ -1284,7 +1256,7 @@ TclAllocateFreeObjects(void)
     prevPtr = NULL;
     objPtr = (Tcl_Obj *) basePtr;
     for (i = 0; i < OBJS_TO_ALLOC_EACH_TIME; i++) {
-	objPtr->internalRep.otherValuePtr = prevPtr;
+	objPtr->internalRep.twoPtrValue.ptr1 = prevPtr;
 	prevPtr = objPtr;
 	objPtr++;
     }
@@ -1329,9 +1301,54 @@ TclFreeObj(
 
     ObjInitDeletionContext(context);
 
+# ifdef TCL_THREADS
+    /*
+     * Check to make sure that the Tcl_Obj was allocated by the current
+     * thread. Don't do this check when shutting down since thread local
+     * storage can be finalized before the last Tcl_Obj is freed.
+     */
+
+    if (!TclInExit()) {
+	Tcl_HashTable *tablePtr;
+	Tcl_HashEntry *hPtr;
+	ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+
+	tablePtr = tsdPtr->objThreadMap;
+	if (!tablePtr) {
+	    Tcl_Panic("TclFreeObj: object table not initialized");
+	}
+	hPtr = Tcl_FindHashEntry(tablePtr, (char *) objPtr);
+	if (hPtr) {
+	    /*
+	     * As the Tcl_Obj is going to be deleted we remove the entry.
+	     */
+
+	    ObjData *objData = Tcl_GetHashValue(hPtr);
+
+	    if (objData != NULL) {
+		ckfree(objData);
+	    }
+
+	    Tcl_DeleteHashEntry(hPtr);
+	}
+    }
+# endif
+
+    /*
+     * Check for a double free of the same value.  This is slightly tricky
+     * because it is customary to free a Tcl_Obj when its refcount falls
+     * either from 1 to 0, or from 0 to -1.  Falling from -1 to -2, though,
+     * and so on, is always a sign of a botch in the caller.
+     */
     if (objPtr->refCount < -1) {
 	Tcl_Panic("Reference count for %p was negative", objPtr);
     }
+    /*
+     * Now, in case we just approved drop from 1 to 0 as acceptable, make
+     * sure we do not accept a second free when falling from 0 to -1.
+     * Skip that possibility so any double free will trigger the panic.
+     */
+    objPtr->refCount = -1;
 
     /*
      * Invalidate the string rep first so we can use the bytes value for our
@@ -1389,7 +1406,7 @@ TclFreeObj(
 	if (tsdPtr->lineCLPtr) {
             hPtr = Tcl_FindHashEntry(tsdPtr->lineCLPtr, objPtr);
 	    if (hPtr) {
-		Tcl_EventuallyFree(Tcl_GetHashValue(hPtr), ContLineLocFree);
+		ckfree(Tcl_GetHashValue(hPtr));
 		Tcl_DeleteHashEntry(hPtr);
 	    }
 	}
@@ -1480,7 +1497,7 @@ TclFreeObj(
 	if (tsdPtr->lineCLPtr) {
             hPtr = Tcl_FindHashEntry(tsdPtr->lineCLPtr, objPtr);
 	    if (hPtr) {
-		Tcl_EventuallyFree(Tcl_GetHashValue(hPtr), ContLineLocFree);
+		ckfree(Tcl_GetHashValue(hPtr));
 		Tcl_DeleteHashEntry(hPtr);
 	    }
 	}
@@ -1729,8 +1746,8 @@ Tcl_InvalidateStringRep(
  *----------------------------------------------------------------------
  */
 
-#ifdef TCL_MEM_DEBUG
 #undef Tcl_NewBooleanObj
+#ifdef TCL_MEM_DEBUG
 
 Tcl_Obj *
 Tcl_NewBooleanObj(
@@ -1778,6 +1795,7 @@ Tcl_NewBooleanObj(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_DbNewBooleanObj
 #ifdef TCL_MEM_DEBUG
 
 Tcl_Obj *
@@ -1830,6 +1848,7 @@ Tcl_DbNewBooleanObj(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_SetBooleanObj
 void
 Tcl_SetBooleanObj(
     register Tcl_Obj *objPtr,	/* Object whose internal rep to init. */
@@ -1897,7 +1916,7 @@ Tcl_GetBooleanFromObj(
 	    *boolPtr = 1;
 	    return TCL_OK;
 	}
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if (objPtr->typePtr == &tclWideIntType) {
 	    *boolPtr = (objPtr->internalRep.wideValue != 0);
 	    return TCL_OK;
@@ -1911,7 +1930,7 @@ Tcl_GetBooleanFromObj(
 /*
  *----------------------------------------------------------------------
  *
- * SetBooleanFromAny --
+ * TclSetBooleanFromAny --
  *
  *	Attempt to generate a boolean internal form for the Tcl object
  *	"objPtr".
@@ -1928,8 +1947,8 @@ Tcl_GetBooleanFromObj(
  *----------------------------------------------------------------------
  */
 
-static int
-SetBooleanFromAny(
+int
+TclSetBooleanFromAny(
     Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
     register Tcl_Obj *objPtr)	/* The object to convert. */
 {
@@ -1952,7 +1971,7 @@ SetBooleanFromAny(
 	    goto badBoolean;
 	}
 
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if (objPtr->typePtr == &tclWideIntType) {
 	    goto badBoolean;
 	}
@@ -2284,7 +2303,7 @@ Tcl_GetDoubleFromObj(
 	    *dblPtr = TclBignumToDouble(&big);
 	    return TCL_OK;
 	}
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if (objPtr->typePtr == &tclWideIntType) {
 	    *dblPtr = (double) objPtr->internalRep.wideValue;
 	    return TCL_OK;
@@ -2389,8 +2408,8 @@ UpdateStringOfDouble(
  *----------------------------------------------------------------------
  */
 
-#ifdef TCL_MEM_DEBUG
 #undef Tcl_NewIntObj
+#ifdef TCL_MEM_DEBUG
 
 Tcl_Obj *
 Tcl_NewIntObj(
@@ -2430,6 +2449,7 @@ Tcl_NewIntObj(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_SetIntObj
 void
 Tcl_SetIntObj(
     register Tcl_Obj *objPtr,	/* Object whose internal rep to init. */
@@ -2741,7 +2761,7 @@ Tcl_GetLongFromObj(
 	    *longPtr = objPtr->internalRep.longValue;
 	    return TCL_OK;
 	}
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if (objPtr->typePtr == &tclWideIntType) {
 	    /*
 	     * We return any integer in the range -ULONG_MAX to ULONG_MAX
@@ -2799,7 +2819,7 @@ Tcl_GetLongFromObj(
 		    return TCL_OK;
 		}
 	    }
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	tooLarge:
 #endif
 	    if (interp != NULL) {
@@ -2815,7 +2835,7 @@ Tcl_GetLongFromObj(
 	    TCL_PARSE_INTEGER_ONLY)==TCL_OK);
     return TCL_ERROR;
 }
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 
 /*
  *----------------------------------------------------------------------
@@ -2857,7 +2877,7 @@ UpdateStringOfWideInt(
     memcpy(objPtr->bytes, buffer, len + 1);
     objPtr->length = len;
 }
-#endif /* !NO_WIDE_TYPE */
+#endif /* !TCL_WIDE_INT_IS_LONG */
 
 /*
  *----------------------------------------------------------------------
@@ -3012,7 +3032,7 @@ Tcl_SetWideIntObj(
 	    && (wideValue <= (Tcl_WideInt) LONG_MAX)) {
 	TclSetLongObj(objPtr, (long) wideValue);
     } else {
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	TclSetWideIntObj(objPtr, wideValue);
 #else
 	mp_int big;
@@ -3052,7 +3072,7 @@ Tcl_GetWideIntFromObj(
 				/* Place to store resulting long. */
 {
     do {
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if (objPtr->typePtr == &tclWideIntType) {
 	    *wideIntPtr = objPtr->internalRep.wideValue;
 	    return TCL_OK;
@@ -3112,7 +3132,7 @@ Tcl_GetWideIntFromObj(
 	    TCL_PARSE_INTEGER_ONLY)==TCL_OK);
     return TCL_ERROR;
 }
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 
 /*
  *----------------------------------------------------------------------
@@ -3138,7 +3158,7 @@ SetWideIntFromAny(
     Tcl_WideInt w;
     return Tcl_GetWideIntFromObj(interp, objPtr, &w);
 }
-#endif /* !NO_WIDE_TYPE */
+#endif /* !TCL_WIDE_INT_IS_LONG */
 
 /*
  *----------------------------------------------------------------------
@@ -3386,7 +3406,7 @@ GetBignumFromObj(
 	    TclBNInitBignumFromLong(bignumValue, objPtr->internalRep.longValue);
 	    return TCL_OK;
 	}
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if (objPtr->typePtr == &tclWideIntType) {
 	    TclBNInitBignumFromWideInt(bignumValue,
 		    objPtr->internalRep.wideValue);
@@ -3525,7 +3545,7 @@ Tcl_SetBignumObj(
 	return;
     }
   tooLargeForLong:
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
     if ((size_t) bignumValue->used
 	    <= (CHAR_BIT * sizeof(Tcl_WideInt) + DIGIT_BIT - 1) / DIGIT_BIT) {
 	Tcl_WideUInt value = 0;
@@ -3637,7 +3657,7 @@ TclGetNumberFromObj(
 	    *clientDataPtr = &objPtr->internalRep.longValue;
 	    return TCL_OK;
 	}
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	if (objPtr->typePtr == &tclWideIntType) {
 	    *typePtr = TCL_NUMBER_WIDE;
 	    *clientDataPtr = &objPtr->internalRep.wideValue;
@@ -3779,20 +3799,6 @@ Tcl_DbDecrRefCount(
 	    Tcl_Panic("Trying to %s of Tcl_Obj allocated in another thread",
                     "decr ref count");
 	}
-
-	/*
-	 * If the Tcl_Obj is going to be deleted, remove the entry.
-	 */
-
-	if ((objPtr->refCount - 1) <= 0) {
-	    ObjData *objData = Tcl_GetHashValue(hPtr);
-
-	    if (objData != NULL) {
-		ckfree(objData);
-	    }
-
-	    Tcl_DeleteHashEntry(hPtr);
-	}
     }
 # endif /* TCL_THREADS */
 #endif /* TCL_MEM_DEBUG */
@@ -4171,7 +4177,7 @@ Tcl_GetCommandFromObj(
      * had is invalid one way or another.
      */
 
-    if (tclCmdNameType.setFromAnyProc(interp, objPtr) != TCL_OK) {
+    if (SetCmdNameFromAny(interp, objPtr) != TCL_OK) {
         return NULL;
     }
     resPtr = objPtr->internalRep.twoPtrValue.ptr1;
@@ -4390,7 +4396,7 @@ SetCmdNameFromAny(
 
     if (cmdPtr) {
 	cmdPtr->refCount++;
-	resPtr = objPtr->internalRep.otherValuePtr;
+	resPtr = objPtr->internalRep.twoPtrValue.ptr1;
 	if ((objPtr->typePtr == &tclCmdNameType)
 		&& resPtr && (resPtr->refCount == 1)) {
 	    /*
diff --git a/generic/tclOptimize.c b/generic/tclOptimize.c
new file mode 100644
index 0000000..827d89d
--- /dev/null
+++ b/generic/tclOptimize.c
@@ -0,0 +1,444 @@
+/*
+ * tclOptimize.c --
+ *
+ *	This file contains the bytecode optimizer.
+ *
+ * Copyright (c) 2013 by Donal Fellows.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclInt.h"
+#include "tclCompile.h"
+#include <assert.h>
+
+/*
+ * Forward declarations.
+ */
+
+static void		AdvanceJumps(CompileEnv *envPtr);
+static void		ConvertZeroEffectToNOP(CompileEnv *envPtr);
+static void		LocateTargetAddresses(CompileEnv *envPtr,
+			    Tcl_HashTable *tablePtr);
+static void		TrimUnreachable(CompileEnv *envPtr);
+
+/*
+ * Helper macros.
+ */
+
+#define DefineTargetAddress(tablePtr, address) \
+    ((void) Tcl_CreateHashEntry((tablePtr), (void *) (address), &isNew))
+#define IsTargetAddress(tablePtr, address) \
+    (Tcl_FindHashEntry((tablePtr), (void *) (address)) != NULL)
+#define AddrLength(address) \
+    (tclInstructionTable[*(unsigned char *)(address)].numBytes)
+#define InstLength(instruction) \
+    (tclInstructionTable[(unsigned char)(instruction)].numBytes)
+
+/*
+ * ----------------------------------------------------------------------
+ *
+ * LocateTargetAddresses --
+ *
+ *	Populate a hash table with places that we need to be careful around
+ *	because they're the targets of various kinds of jumps and other
+ *	non-local behavior.
+ *
+ * ----------------------------------------------------------------------
+ */
+
+static void
+LocateTargetAddresses(
+    CompileEnv *envPtr,
+    Tcl_HashTable *tablePtr)
+{
+    unsigned char *currentInstPtr, *targetInstPtr;
+    int isNew, i;
+    Tcl_HashEntry *hPtr;
+    Tcl_HashSearch hSearch;
+
+    Tcl_InitHashTable(tablePtr, TCL_ONE_WORD_KEYS);
+
+    /*
+     * The starts of commands represent target addresses.
+     */
+
+    for (i=0 ; i<envPtr->numCommands ; i++) {
+	DefineTargetAddress(tablePtr,
+		envPtr->codeStart + envPtr->cmdMapPtr[i].codeOffset);
+    }
+
+    /*
+     * Find places where we should be careful about replacing instructions
+     * because they are the targets of various types of jumps.
+     */
+
+    for (currentInstPtr = envPtr->codeStart ;
+	    currentInstPtr < envPtr->codeNext ;
+	    currentInstPtr += AddrLength(currentInstPtr)) {
+	switch (*currentInstPtr) {
+	case INST_JUMP1:
+	case INST_JUMP_TRUE1:
+	case INST_JUMP_FALSE1:
+	    targetInstPtr = currentInstPtr+TclGetInt1AtPtr(currentInstPtr+1);
+	    goto storeTarget;
+	case INST_JUMP4:
+	case INST_JUMP_TRUE4:
+	case INST_JUMP_FALSE4:
+	case INST_START_CMD:
+	    targetInstPtr = currentInstPtr+TclGetInt4AtPtr(currentInstPtr+1);
+	    goto storeTarget;
+	case INST_BEGIN_CATCH4:
+	    targetInstPtr = envPtr->codeStart + envPtr->exceptArrayPtr[
+		    TclGetUInt4AtPtr(currentInstPtr+1)].codeOffset;
+	storeTarget:
+	    DefineTargetAddress(tablePtr, targetInstPtr);
+	    break;
+	case INST_JUMP_TABLE:
+	    hPtr = Tcl_FirstHashEntry(
+		    &JUMPTABLEINFO(envPtr, currentInstPtr+1)->hashTable,
+		    &hSearch);
+	    for (; hPtr ; hPtr = Tcl_NextHashEntry(&hSearch)) {
+		targetInstPtr = currentInstPtr +
+			PTR2INT(Tcl_GetHashValue(hPtr));
+		DefineTargetAddress(tablePtr, targetInstPtr);
+	    }
+	    break;
+	case INST_RETURN_CODE_BRANCH:
+	    for (i=TCL_ERROR ; i<TCL_CONTINUE+1 ; i++) {
+		DefineTargetAddress(tablePtr, currentInstPtr + 2*i - 1);
+	    }
+	    break;
+	}
+    }
+
+    /*
+     * Add a marker *after* the last bytecode instruction. WARNING: points to
+     * one past the end!
+     */
+
+    DefineTargetAddress(tablePtr, currentInstPtr);
+
+    /*
+     * Enter in the targets of exception ranges.
+     */
+
+    for (i=0 ; i<envPtr->exceptArrayNext ; i++) {
+	ExceptionRange *rangePtr = &envPtr->exceptArrayPtr[i];
+
+	if (rangePtr->type == CATCH_EXCEPTION_RANGE) {
+	    targetInstPtr = envPtr->codeStart + rangePtr->catchOffset;
+	    DefineTargetAddress(tablePtr, targetInstPtr);
+	} else {
+	    targetInstPtr = envPtr->codeStart + rangePtr->breakOffset;
+	    DefineTargetAddress(tablePtr, targetInstPtr);
+	    if (rangePtr->continueOffset >= 0) {
+		targetInstPtr = envPtr->codeStart + rangePtr->continueOffset;
+		DefineTargetAddress(tablePtr, targetInstPtr);
+	    }
+	}
+    }
+}
+
+/*
+ * ----------------------------------------------------------------------
+ *
+ * TrimUnreachable --
+ *
+ *	Converts code that provably can't be executed into NOPs and reduces
+ *	the overall reported length of the bytecode where that is possible.
+ *
+ * ----------------------------------------------------------------------
+ */
+
+static void
+TrimUnreachable(
+    CompileEnv *envPtr)
+{
+    unsigned char *currentInstPtr;
+    Tcl_HashTable targets;
+
+    LocateTargetAddresses(envPtr, &targets);
+
+    for (currentInstPtr = envPtr->codeStart ;
+	    currentInstPtr < envPtr->codeNext-1 ;
+	    currentInstPtr += AddrLength(currentInstPtr)) {
+	int clear = 0;
+
+	if (*currentInstPtr != INST_DONE) {
+	    continue;
+	}
+
+	while (!IsTargetAddress(&targets, currentInstPtr + 1 + clear)) {
+	    clear += AddrLength(currentInstPtr + 1 + clear);
+	}
+	if (currentInstPtr + 1 + clear == envPtr->codeNext) {
+	    envPtr->codeNext -= clear;
+	} else {
+	    while (clear --> 0) {
+		*(currentInstPtr + 1 + clear) = INST_NOP;
+	    }
+	}
+    }
+
+    Tcl_DeleteHashTable(&targets);
+}
+
+/*
+ * ----------------------------------------------------------------------
+ *
+ * ConvertZeroEffectToNOP --
+ *
+ *	Replace PUSH/POP sequences (when non-hazardous) with NOPs. Also
+ *	replace PUSH empty/STR_CONCAT and TRY_CVT_NUMERIC (when followed by an
+ *	operation that guarantees the check for arithmeticity) and eliminate
+ *	LNOT when we can invert the following JUMP condition.
+ *
+ * ----------------------------------------------------------------------
+ */
+
+static void
+ConvertZeroEffectToNOP(
+    CompileEnv *envPtr)
+{
+    unsigned char *currentInstPtr;
+    int size;
+    Tcl_HashTable targets;
+
+    LocateTargetAddresses(envPtr, &targets);
+    for (currentInstPtr = envPtr->codeStart ;
+	    currentInstPtr < envPtr->codeNext ; currentInstPtr += size) {
+	int blank = 0, i, nextInst;
+
+	size = AddrLength(currentInstPtr);
+	while ((currentInstPtr + size < envPtr->codeNext)
+		&& *(currentInstPtr+size) == INST_NOP) {
+	    if (IsTargetAddress(&targets, currentInstPtr + size)) {
+		break;
+	    }
+	    size += InstLength(INST_NOP);
+	}
+	if (IsTargetAddress(&targets, currentInstPtr + size)) {
+	    continue;
+	}
+	nextInst = *(currentInstPtr + size);
+	switch (*currentInstPtr) {
+	case INST_PUSH1:
+	    if (nextInst == INST_POP) {
+		blank = size + InstLength(nextInst);
+	    } else if (nextInst == INST_STR_CONCAT1
+		    && TclGetUInt1AtPtr(currentInstPtr + size + 1) == 2) {
+		Tcl_Obj *litPtr = TclFetchLiteral(envPtr,
+			TclGetUInt1AtPtr(currentInstPtr + 1));
+		int numBytes;
+
+		(void) Tcl_GetStringFromObj(litPtr, &numBytes);
+		if (numBytes == 0) {
+		    blank = size + InstLength(nextInst);
+		}
+	    }
+	    break;
+	case INST_PUSH4:
+	    if (nextInst == INST_POP) {
+		blank = size + 1;
+	    } else if (nextInst == INST_STR_CONCAT1
+		    && TclGetUInt1AtPtr(currentInstPtr + size + 1) == 2) {
+		Tcl_Obj *litPtr = TclFetchLiteral(envPtr,
+			TclGetUInt4AtPtr(currentInstPtr + 1));
+		int numBytes;
+
+		(void) Tcl_GetStringFromObj(litPtr, &numBytes);
+		if (numBytes == 0) {
+		    blank = size + InstLength(nextInst);
+		}
+	    }
+	    break;
+
+	case INST_LNOT:
+	    switch (nextInst) {
+	    case INST_JUMP_TRUE1:
+		blank = size;
+		*(currentInstPtr + size) = INST_JUMP_FALSE1;
+		break;
+	    case INST_JUMP_FALSE1:
+		blank = size;
+		*(currentInstPtr + size) = INST_JUMP_TRUE1;
+		break;
+	    case INST_JUMP_TRUE4:
+		blank = size;
+		*(currentInstPtr + size) = INST_JUMP_FALSE4;
+		break;
+	    case INST_JUMP_FALSE4:
+		blank = size;
+		*(currentInstPtr + size) = INST_JUMP_TRUE4;
+		break;
+	    }
+	    break;
+
+	case INST_TRY_CVT_TO_NUMERIC:
+	    switch (nextInst) {
+	    case INST_JUMP_TRUE1:
+	    case INST_JUMP_TRUE4:
+	    case INST_JUMP_FALSE1:
+	    case INST_JUMP_FALSE4:
+	    case INST_INCR_SCALAR1:
+	    case INST_INCR_ARRAY1:
+	    case INST_INCR_ARRAY_STK:
+	    case INST_INCR_SCALAR_STK:
+	    case INST_INCR_STK:
+	    case INST_LOR:
+	    case INST_LAND:
+	    case INST_EQ:
+	    case INST_NEQ:
+	    case INST_LT:
+	    case INST_LE:
+	    case INST_GT:
+	    case INST_GE:
+	    case INST_MOD:
+	    case INST_LSHIFT:
+	    case INST_RSHIFT:
+	    case INST_BITOR:
+	    case INST_BITXOR:
+	    case INST_BITAND:
+	    case INST_EXPON:
+	    case INST_ADD:
+	    case INST_SUB:
+	    case INST_DIV:
+	    case INST_MULT:
+	    case INST_LNOT:
+	    case INST_BITNOT:
+	    case INST_UMINUS:
+	    case INST_UPLUS:
+	    case INST_TRY_CVT_TO_NUMERIC:
+		blank = size;
+		break;
+	    }
+	    break;
+	}
+
+	if (blank > 0) {
+	    for (i=0 ; i<blank ; i++) {
+		*(currentInstPtr + i) = INST_NOP;
+	    }
+	    size = blank;
+	}
+    }
+    Tcl_DeleteHashTable(&targets);
+}
+
+/*
+ * ----------------------------------------------------------------------
+ *
+ * AdvanceJumps --
+ *
+ *	Advance jumps past NOPs and chained JUMPs. After this runs, the only
+ *	JUMPs that jump to a NOP or a JUMP will be length-1 ones that run out
+ *	of room in their opcode to be targeted to where they really belong.
+ *
+ * ----------------------------------------------------------------------
+ */
+
+static void
+AdvanceJumps(
+    CompileEnv *envPtr)
+{
+    unsigned char *currentInstPtr;
+    Tcl_HashTable jumps;
+
+    for (currentInstPtr = envPtr->codeStart ;
+	    currentInstPtr < envPtr->codeNext-1 ;
+	    currentInstPtr += AddrLength(currentInstPtr)) {
+	int offset, delta, isNew;
+
+	switch (*currentInstPtr) {
+	case INST_JUMP1:
+	case INST_JUMP_TRUE1:
+	case INST_JUMP_FALSE1:
+	    offset = TclGetInt1AtPtr(currentInstPtr + 1);
+	    Tcl_InitHashTable(&jumps, TCL_ONE_WORD_KEYS);
+	    for (delta=0 ; offset+delta != 0 ;) {
+		if (offset + delta < -128 || offset + delta > 127) {
+		    break;
+		}
+		Tcl_CreateHashEntry(&jumps, INT2PTR(offset), &isNew);
+		if (!isNew) {
+		    offset = TclGetInt1AtPtr(currentInstPtr + 1);
+		    break;
+		}
+		offset += delta;
+		switch (*(currentInstPtr + offset)) {
+		case INST_NOP:
+		    delta = InstLength(INST_NOP);
+		    continue;
+		case INST_JUMP1:
+		    delta = TclGetInt1AtPtr(currentInstPtr + offset + 1);
+		    continue;
+		case INST_JUMP4:
+		    delta = TclGetInt4AtPtr(currentInstPtr + offset + 1);
+		    continue;
+		}
+		break;
+	    }
+	    Tcl_DeleteHashTable(&jumps);
+	    TclStoreInt1AtPtr(offset, currentInstPtr + 1);
+	    continue;
+
+	case INST_JUMP4:
+	case INST_JUMP_TRUE4:
+	case INST_JUMP_FALSE4:
+	    Tcl_InitHashTable(&jumps, TCL_ONE_WORD_KEYS);
+	    Tcl_CreateHashEntry(&jumps, INT2PTR(0), &isNew);
+	    for (offset = TclGetInt4AtPtr(currentInstPtr + 1); offset!=0 ;) {
+		Tcl_CreateHashEntry(&jumps, INT2PTR(offset), &isNew);
+		if (!isNew) {
+		    offset = TclGetInt4AtPtr(currentInstPtr + 1);
+		    break;
+		}
+		switch (*(currentInstPtr + offset)) {
+		case INST_NOP:
+		    offset += InstLength(INST_NOP);
+		    continue;
+		case INST_JUMP1:
+		    offset += TclGetInt1AtPtr(currentInstPtr + offset + 1);
+		    continue;
+		case INST_JUMP4:
+		    offset += TclGetInt4AtPtr(currentInstPtr + offset + 1);
+		    continue;
+		}
+		break;
+	    }
+	    Tcl_DeleteHashTable(&jumps);
+	    TclStoreInt4AtPtr(offset, currentInstPtr + 1);
+	    continue;
+	}
+    }
+}
+
+/*
+ * ----------------------------------------------------------------------
+ *
+ * TclOptimizeBytecode --
+ *
+ *	A very simple peephole optimizer for bytecode.
+ *
+ * ----------------------------------------------------------------------
+ */
+
+void
+TclOptimizeBytecode(
+    void *envPtr)
+{
+    ConvertZeroEffectToNOP(envPtr);
+    AdvanceJumps(envPtr);
+    TrimUnreachable(envPtr);
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * tab-width: 8
+ * End:
+ */
diff --git a/generic/tclPanic.c b/generic/tclPanic.c
index b87a8df..2a453b9 100644
--- a/generic/tclPanic.c
+++ b/generic/tclPanic.c
@@ -52,6 +52,10 @@ Tcl_SetPanicProc(
 #if defined(_WIN32)
     /* tclWinDebugPanic only installs if there is no panicProc yet. */
     if ((proc != tclWinDebugPanic) || (panicProc == NULL))
+#elif defined(__CYGWIN__)
+    if (proc == NULL)
+	panicProc = tclWinDebugPanic;
+    else
 #endif
     panicProc = proc;
 }
diff --git a/generic/tclParse.c b/generic/tclParse.c
index 309e232..5524979 100644
--- a/generic/tclParse.c
+++ b/generic/tclParse.c
@@ -15,6 +15,7 @@
  
 #include "tclInt.h"
 #include "tclParse.h"
+#include <assert.h>
 
 /*
  * The following table provides parsing information about each possible 8-bit
@@ -42,7 +43,7 @@
  * TYPE_BRACE -		Character is a curly brace (either left or right).
  */
 
-const char charTypeTable[] = {
+const char tclCharTypeTable[] = {
     /*
      * Negative character values, from -128 to -1:
      */
@@ -620,6 +621,47 @@ TclIsSpaceProc(
 /*
  *----------------------------------------------------------------------
  *
+ * TclIsBareword--
+ *
+ *	Report whether byte is one that can be part of a "bareword".
+ *	This concept is named in expression parsing, where it determines
+ *	what can be a legal function name, but is the same definition used
+ *	in determining what variable names can be parsed as variable
+ *	substitutions without the benefit of enclosing braces.  The set of
+ *	ASCII chars that are accepted are the numeric chars ('0'-'9'),
+ *	the alphabetic chars ('a'-'z', 'A'-'Z')	and underscore ('_').
+ *
+ * Results:
+ *	Returns 1, if byte is in the accepted set of chars, 0 otherwise.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclIsBareword(
+    char byte)
+{
+    if (byte < '0' || byte > 'z') {
+	return 0;
+    }
+    if (byte <= '9' || byte >= 'a') {
+	return 1;
+    }
+    if (byte == '_') {
+	return 1;
+    }
+    if (byte < 'A' || byte > 'Z') {
+	return 0;
+    }
+    return 1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * ParseWhiteSpace --
  *
  *	Scans up to numBytes bytes starting at src, consuming white space
@@ -1345,9 +1387,7 @@ Tcl_ParseVarName(
 {
     Tcl_Token *tokenPtr;
     register const char *src;
-    unsigned char c;
-    int varIndex, offset;
-    Tcl_UniChar ch;
+    int varIndex;
     unsigned array;
 
     if ((numBytes == 0) || (start == NULL)) {
@@ -1430,22 +1470,12 @@ Tcl_ParseVarName(
 	tokenPtr->numComponents = 0;
 
 	while (numBytes) {
-	    if (Tcl_UtfCharComplete(src, numBytes)) {
-		offset = Tcl_UtfToUniChar(src, &ch);
-	    } else {
-		char utfBytes[TCL_UTF_MAX];
-
-		memcpy(utfBytes, src, (size_t) numBytes);
-		utfBytes[numBytes] = '\0';
-		offset = Tcl_UtfToUniChar(utfBytes, &ch);
-	    }
-	    c = UCHAR(ch);
-	    if (isalnum(c) || (c == '_')) {	/* INTL: ISO only, UCHAR. */
-		src += offset;
-		numBytes -= offset;
+	    if (TclIsBareword(*src)) {
+		src += 1;
+		numBytes -= 1;
 		continue;
 	    }
-	    if ((c == ':') && (numBytes != 1) && (src[1] == ':')) {
+	    if ((src[0] == ':') && (numBytes != 1) && (src[1] == ':')) {
 		src += 2;
 		numBytes -= 2;
 		while (numBytes && (*src == ':')) {
@@ -1567,6 +1597,7 @@ Tcl_ParseVar(
 
     code = TclSubstTokens(interp, parsePtr->tokenPtr, parsePtr->numTokens,
 	    NULL, 1, NULL, NULL);
+    Tcl_FreeParse(parsePtr);
     TclStackFree(interp, parsePtr);
     if (code != TCL_OK) {
 	return NULL;
@@ -1577,16 +1608,13 @@ Tcl_ParseVar(
      * At this point we should have an object containing the value of a
      * variable. Just return the string from that object.
      *
-     * This should have returned the object for the user to manage, but
-     * instead we have some weak reference to the string value in the object,
-     * which is why we make sure the object exists after resetting the result.
-     * This isn't ideal, but it's the best we can do with the current
-     * documented interface. -- hobbs
+     * Since TclSubstTokens above returned TCL_OK, we know that objPtr
+     * is shared.  It is in both the interp result and the value of the
+     * variable.  Returning the string relies on that to be true.
      */
 
-    if (!Tcl_IsShared(objPtr)) {
-	Tcl_IncrRefCount(objPtr);
-    }
+    assert( Tcl_IsShared(objPtr) );
+
     Tcl_ResetResult(interp);
     return TclGetString(objPtr);
 }
@@ -2498,56 +2526,6 @@ TclObjCommandComplete(
 }
 
 /*
- *----------------------------------------------------------------------
- *
- * TclIsLocalScalar --
- *
- *	Check to see if a given string is a legal scalar variable name with no
- *	namespace qualifiers or substitutions.
- *
- * Results:
- *	Returns 1 if the variable is a local scalar.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclIsLocalScalar(
-    const char *src,
-    int len)
-{
-    const char *p;
-    const char *lastChar = src + (len - 1);
-
-    for (p=src ; p<=lastChar ; p++) {
-	if ((CHAR_TYPE(*p) != TYPE_NORMAL)
-		&& (CHAR_TYPE(*p) != TYPE_COMMAND_END)) {
-	    /*
-	     * TCL_COMMAND_END is returned for the last character of the
-	     * string. By this point we know it isn't an array or namespace
-	     * reference.
-	     */
-
-	    return 0;
-	}
-	if (*p == '(') {
-	    if (*lastChar == ')') {	/* We have an array element */
-		return 0;
-	    }
-	} else if (*p == ':') {
-	    if ((p != lastChar) && *(p+1) == ':') {	/* qualified name */
-		return 0;
-	    }
-	}
-    }
-
-    return 1;
-}
-
-/*
  * Local Variables:
  * mode: c
  * c-basic-offset: 4
diff --git a/generic/tclParse.h b/generic/tclParse.h
index be1ab15..20c609c 100644
--- a/generic/tclParse.h
+++ b/generic/tclParse.h
@@ -12,6 +12,6 @@
 #define TYPE_CLOSE_BRACK	0x20
 #define TYPE_BRACE		0x40
 
-#define CHAR_TYPE(c) (charTypeTable+128)[(int)(c)]
+#define CHAR_TYPE(c) (tclCharTypeTable+128)[(int)(c)]
 
-MODULE_SCOPE const char charTypeTable[];
+MODULE_SCOPE const char tclCharTypeTable[];
diff --git a/generic/tclPathObj.c b/generic/tclPathObj.c
index 2b9ff87..99d576d 100644
--- a/generic/tclPathObj.c
+++ b/generic/tclPathObj.c
@@ -109,9 +109,9 @@ typedef struct FsPath {
  * fields.
  */
 
-#define PATHOBJ(pathPtr) ((FsPath *) (pathPtr)->internalRep.otherValuePtr)
+#define PATHOBJ(pathPtr) ((FsPath *) (pathPtr)->internalRep.twoPtrValue.ptr1)
 #define SETPATHOBJ(pathPtr,fsPathPtr) \
-	((pathPtr)->internalRep.otherValuePtr = (void *) (fsPathPtr))
+	((pathPtr)->internalRep.twoPtrValue.ptr1 = (void *) (fsPathPtr))
 #define PATHFLAGS(pathPtr) (PATHOBJ(pathPtr)->flags)
 
 /*
@@ -512,7 +512,7 @@ TclFSGetPathType(
 
     if (PATHFLAGS(pathPtr) == 0) {
 	/* The path is not absolute... */
-#ifdef __WIN32__
+#ifdef _WIN32
 	/* ... on Windows we must make another call to determine whether
 	 * it's relative or volumerelative [Bug 2571597]. */
 	return TclGetPathType(pathPtr, filesystemPtrPtr, driveNameLengthPtr,
@@ -1156,7 +1156,7 @@ Tcl_FSConvertToPathType(
 	FreeFsPathInternalRep(pathPtr);
     }
 
-    return Tcl_ConvertToType(interp, pathPtr, &tclFsPathType);
+    return SetFsPathFromAny(interp, pathPtr);
 
     /*
      * We used to have more complex code here:
@@ -1873,7 +1873,7 @@ Tcl_FSGetNormalizedPath(
 		UpdateStringOfFsPath(pathPtr);
 	    }
 	    FreeFsPathInternalRep(pathPtr);
-	    if (Tcl_ConvertToType(interp, pathPtr, &tclFsPathType) != TCL_OK) {
+	    if (SetFsPathFromAny(interp, pathPtr) != TCL_OK) {
 		return NULL;
 	    }
 	    fsPathPtr = PATHOBJ(pathPtr);
@@ -1956,7 +1956,7 @@ Tcl_FSGetNormalizedPath(
 		/*
 		 * We have a refCount on the cwd.
 		 */
-#ifdef __WIN32__
+#ifdef _WIN32
 	    } else if (type == TCL_PATH_VOLUME_RELATIVE) {
 		/*
 		 * Only Windows has volume-relative paths.
@@ -1969,7 +1969,7 @@ Tcl_FSGetNormalizedPath(
 		    return NULL;
 		}
 		pureNormalized = 0;
-#endif /* __WIN32__ */
+#endif /* _WIN32 */
 	    }
 	}
 
@@ -2437,19 +2437,13 @@ SetFsPathFromAny(
 		}
 		TclDecrRefCount(parts);
 	    } else {
-		/*
-		 * Simple case. "rest" is relative path. Just join it. The
-		 * "rest" object will be freed when Tcl_FSJoinToPath returns
-		 * (unless something else claims a refCount on it).
-		 */
-
-		Tcl_Obj *joined;
-		Tcl_Obj *rest = Tcl_NewStringObj(name+split+1, -1);
+		Tcl_Obj *pair[2];
 
-		Tcl_IncrRefCount(transPtr);
-		joined = Tcl_FSJoinToPath(transPtr, 1, &rest);
-		TclDecrRefCount(transPtr);
-		transPtr = joined;
+		pair[0] = transPtr;
+		pair[1] = Tcl_NewStringObj(name+split+1, -1);
+		transPtr = TclJoinPath(2, pair);
+		Tcl_DecrRefCount(pair[0]);
+		Tcl_DecrRefCount(pair[1]);
 	    }
 	}
     } else {
diff --git a/generic/tclPkg.c b/generic/tclPkg.c
index 9b6e942..df90cea 100644
--- a/generic/tclPkg.c
+++ b/generic/tclPkg.c
@@ -106,6 +106,7 @@ static const char *	PkgRequireCore(Tcl_Interp *interp, const char *name,
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_PkgProvide
 int
 Tcl_PkgProvide(
     Tcl_Interp *interp,		/* Interpreter in which package is now
@@ -188,6 +189,7 @@ Tcl_PkgProvideEx(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_PkgRequire
 const char *
 Tcl_PkgRequire(
     Tcl_Interp *interp,		/* Interpreter in which package is now
@@ -356,6 +358,10 @@ PkgRequireCore(
     char *script, *pkgVersionI;
     Tcl_DString command;
 
+    if (TCL_OK != CheckAllRequirements(interp, reqc, reqv)) {
+	return NULL;
+    }
+
     /*
      * It can take up to three passes to find the package: one pass to run the
      * "package unknown" script, one to run the "package ifneeded" script for
@@ -666,6 +672,7 @@ PkgRequireCore(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_PkgPresent
 const char *
 Tcl_PkgPresent(
     Tcl_Interp *interp,		/* Interpreter in which package is now
@@ -942,7 +949,7 @@ Tcl_PackageObjCmd(
 		version = TclGetString(objv[3]);
 	    }
 	}
-	Tcl_PkgPresent(interp, name, version, exact);
+	Tcl_PkgPresentEx(interp, name, version, exact, NULL);
 	return TCL_ERROR;
 	break;
     }
@@ -967,7 +974,7 @@ Tcl_PackageObjCmd(
 	if (CheckVersionAndConvert(interp, argv3, NULL, NULL) != TCL_OK) {
 	    return TCL_ERROR;
 	}
-	return Tcl_PkgProvide(interp, argv2, argv3);
+	return Tcl_PkgProvideEx(interp, argv2, argv3, NULL);
     case PKG_REQUIRE:
     require:
 	if (objc < 3) {
diff --git a/generic/tclPlatDecls.h b/generic/tclPlatDecls.h
index 48ad390..abc8ee8 100644
--- a/generic/tclPlatDecls.h
+++ b/generic/tclPlatDecls.h
@@ -42,11 +42,15 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
 
-#if defined(__WIN32__) || defined(__CYGWIN__) /* WIN */
+#if defined(_WIN32) || defined(__CYGWIN__) /* WIN */
 /* 0 */
 EXTERN TCHAR *		Tcl_WinUtfToTChar(const char *str, int len,
 				Tcl_DString *dsPtr);
@@ -69,9 +73,9 @@ EXTERN int		Tcl_MacOSXOpenVersionedBundleResources(
 
 typedef struct TclPlatStubs {
     int magic;
-    const struct TclPlatStubHooks *hooks;
+    void *hooks;
 
-#if defined(__WIN32__) || defined(__CYGWIN__) /* WIN */
+#if defined(_WIN32) || defined(__CYGWIN__) /* WIN */
     TCHAR * (*tcl_WinUtfToTChar) (const char *str, int len, Tcl_DString *dsPtr); /* 0 */
     char * (*tcl_WinTCharToUtf) (const TCHAR *str, int len, Tcl_DString *dsPtr); /* 1 */
 #endif /* WIN */
@@ -81,10 +85,8 @@ typedef struct TclPlatStubs {
 #endif /* MACOSX */
 } TclPlatStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern const TclPlatStubs *tclPlatStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
@@ -95,7 +97,7 @@ extern const TclPlatStubs *tclPlatStubsPtr;
  * Inline function declarations:
  */
 
-#if defined(__WIN32__) || defined(__CYGWIN__) /* WIN */
+#if defined(_WIN32) || defined(__CYGWIN__) /* WIN */
 #define Tcl_WinUtfToTChar \
 	(tclPlatStubsPtr->tcl_WinUtfToTChar) /* 0 */
 #define Tcl_WinTCharToUtf \
diff --git a/generic/tclPort.h b/generic/tclPort.h
index 7021b8d..12a60db 100644
--- a/generic/tclPort.h
+++ b/generic/tclPort.h
@@ -19,11 +19,10 @@
 #endif
 #if defined(_WIN32)
 #   include "tclWinPort.h"
-#endif
-#include "tcl.h"
-#if !defined(_WIN32)
+#else
 #   include "tclUnixPort.h"
 #endif
+#include "tcl.h"
 
 #if !defined(LLONG_MIN)
 #   ifdef TCL_WIDE_INT_IS_LONG
diff --git a/generic/tclProc.c b/generic/tclProc.c
index 933e7d2..e0d6ec7 100644
--- a/generic/tclProc.c
+++ b/generic/tclProc.c
@@ -15,7 +15,6 @@
 
 #include "tclInt.h"
 #include "tclCompile.h"
-#include "tclOOInt.h"
 
 /*
  * Variables that are part of the [apply] command implementation and which
@@ -41,9 +40,6 @@ static void		InitResolvedLocals(Tcl_Interp *interp,
 			    ByteCode *codePtr, Var *defPtr,
 			    Namespace *nsPtr);
 static void		InitLocalCache(Proc *procPtr);
-static int		PushProcCallFrame(ClientData clientData,
-			    register Tcl_Interp *interp, int objc,
-			    Tcl_Obj *const objv[], int isLambda);
 static void		ProcBodyDup(Tcl_Obj *srcPtr, Tcl_Obj *dupPtr);
 static void		ProcBodyFree(Tcl_Obj *objPtr);
 static int		ProcWrongNumArgs(Tcl_Interp *interp, int skip);
@@ -92,10 +88,10 @@ static const Tcl_ObjType levelReferenceType = {
  *
  * Internally, ptr1 is a pointer to a Proc instance that is not bound to a
  * command name, and ptr2 is a pointer to the namespace that the Proc instance
- * will execute within.
+ * will execute within. IF YOU CHANGE THIS, CHECK IN tclDisassemble.c TOO.
  */
 
-static const Tcl_ObjType lambdaType = {
+const Tcl_ObjType tclLambdaType = {
     "lambdaExpr",		/* name */
     FreeLambdaInternalRep,	/* freeIntRepProc */
     DupLambdaInternalRep,	/* dupIntRepProc */
@@ -221,7 +217,7 @@ Tcl_ProcObjCmd(
      *
      * This code is nearly identical to the #280 code in SetLambdaFromAny, see
      * this file. The differences are the different index of the body in the
-     * line array of the context, and the lamdba code requires some special
+     * line array of the context, and the lambda code requires some special
      * processing. Find a way to factor the common elements into a single
      * function.
      */
@@ -271,8 +267,8 @@ Tcl_ProcObjCmd(
 		cfPtr->data.eval.path = contextPtr->data.eval.path;
 		Tcl_IncrRefCount(cfPtr->data.eval.path);
 
-		cfPtr->cmd.str.cmd = NULL;
-		cfPtr->cmd.str.len = 0;
+		cfPtr->cmd = NULL;
+		cfPtr->len = 0;
 
 		hePtr = Tcl_CreateHashEntry(iPtr->linePBodyPtr,
 			procPtr, &isNew);
@@ -421,7 +417,7 @@ TclCreateProc(
 	 * will be holding a reference to it.
 	 */
 
-	procPtr = bodyPtr->internalRep.otherValuePtr;
+	procPtr = bodyPtr->internalRep.twoPtrValue.ptr1;
 	procPtr->iPtr = iPtr;
 	procPtr->refCount++;
 	precompiled = 1;
@@ -837,7 +833,7 @@ TclObjGetFrame(
 	}
 	/* TODO: Consider skipping the typePtr checks */
     } else if (objPtr->typePtr == &tclIntType
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	    || objPtr->typePtr == &tclWideIntType
 #endif
 	    ) {
@@ -1197,7 +1193,7 @@ TclInitCompiledLocals(
     if (bodyPtr->typePtr != &tclByteCodeType) {
 	Tcl_Panic("body object for proc attached to frame is not a byte code type");
     }
-    codePtr = bodyPtr->internalRep.otherValuePtr;
+    codePtr = bodyPtr->internalRep.twoPtrValue.ptr1;
 
     if (framePtr->numCompiledLocals) {
 	if (!codePtr->localCachePtr) {
@@ -1347,17 +1343,9 @@ TclFreeLocalCache(
     for (i = 0; i < localCachePtr->numVars; i++, namePtrPtr++) {
 	register Tcl_Obj *objPtr = *namePtrPtr;
 
-	/*
-	 * Note that this can be called with interp==NULL, on interp deletion.
-	 * In that case, the literal table and objects go away on their own.
-	 */
-
 	if (objPtr) {
-	    if (interp) {
-		TclReleaseLiteral(interp, objPtr);
-	    } else {
-		Tcl_DecrRefCount(objPtr);
-	    }
+	    /* TclReleaseLiteral calls Tcl_DecrRefCount for us */
+	    TclReleaseLiteral(interp, objPtr);
 	}
     }
     ckfree(localCachePtr);
@@ -1368,7 +1356,7 @@ InitLocalCache(
     Proc *procPtr)
 {
     Interp *iPtr = procPtr->iPtr;
-    ByteCode *codePtr = procPtr->bodyPtr->internalRep.otherValuePtr;
+    ByteCode *codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;
     int localCt = procPtr->numCompiledLocals;
     int numArgs = procPtr->numArgs, i = 0;
 
@@ -1445,7 +1433,7 @@ InitArgsAndLocals(
 {
     CallFrame *framePtr = ((Interp *)interp)->varFramePtr;
     register Proc *procPtr = framePtr->procPtr;
-    ByteCode *codePtr = procPtr->bodyPtr->internalRep.otherValuePtr;
+    ByteCode *codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;
     register Var *varPtr, *defPtr;
     int localCt = procPtr->numCompiledLocals, numArgs, argCt, i, imax;
     Tcl_Obj *const *argObjs;
@@ -1579,7 +1567,7 @@ InitArgsAndLocals(
 /*
  *----------------------------------------------------------------------
  *
- * PushProcCallFrame --
+ * TclPushProcCallFrame --
  *
  *	Compiles a proc body if necessary, then pushes a CallFrame suitable
  *	for executing it.
@@ -1594,8 +1582,8 @@ InitArgsAndLocals(
  *----------------------------------------------------------------------
  */
 
-static int
-PushProcCallFrame(
+int
+TclPushProcCallFrame(
     ClientData clientData,	/* Record describing procedure to be
 				 * interpreted. */
     register Tcl_Interp *interp,/* Interpreter in which procedure was
@@ -1632,7 +1620,7 @@ PushProcCallFrame(
 	 * commands and/or resolver changes are considered).
 	 */
 
-	codePtr = procPtr->bodyPtr->internalRep.otherValuePtr;
+	codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;
 	if (((Interp *) *codePtr->interpHandle != iPtr)
 		|| (codePtr->compileEpoch != iPtr->compileEpoch)
 		|| (codePtr->nsPtr != nsPtr)
@@ -1716,7 +1704,7 @@ TclNRInterpProc(
 				 * procedure. */
     Tcl_Obj *const objv[])	/* Argument value objects. */
 {
-    int result = PushProcCallFrame(clientData, interp, objc, objv,
+    int result = TclPushProcCallFrame(clientData, interp, objc, objv,
 	    /*isLambda*/ 0);
 
     if (result != TCL_OK) {
@@ -1833,7 +1821,7 @@ TclNRInterpProcCore(
      */
 
     procPtr->refCount++;
-    codePtr = procPtr->bodyPtr->internalRep.otherValuePtr;
+    codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;
 
     TclNRAddCallback(interp, InterpProcNR2, procNameObj, errorProc,
 	    NULL, NULL);
@@ -1863,9 +1851,39 @@ InterpProcNR2(
     }
 
     /*
-     * Process the result code.
+     * Free the stack-allocated compiled locals and CallFrame. It is important
+     * to pop the call frame without freeing it first: the compiledLocals
+     * cannot be freed before the frame is popped, as the local variables must
+     * be deleted. But the compiledLocals must be freed first, as they were
+     * allocated later on the stack.
      */
 
+    if (result != TCL_OK) {
+	goto process;
+    }
+    
+    done: 
+    if (TCL_DTRACE_PROC_RESULT_ENABLED()) {
+	int l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 1 : 0;
+	Tcl_Obj *r = Tcl_GetObjResult(interp);
+
+	TCL_DTRACE_PROC_RESULT(l < iPtr->varFramePtr->objc ?
+		TclGetString(iPtr->varFramePtr->objv[l]) : NULL, result,
+		TclGetString(r), r);
+    }
+
+    freePtr = iPtr->framePtr;
+    Tcl_PopCallFrame(interp);		/* Pop but do not free. */
+    TclStackFree(interp, freePtr->compiledLocals);
+					/* Free compiledLocals. */
+    TclStackFree(interp, freePtr);	/* Free CallFrame. */
+    return result;
+
+    /*
+     * Process any non-TCL_OK result code.
+     */
+
+    process:
     switch (result) {
     case TCL_RETURN:
 	/*
@@ -1900,46 +1918,8 @@ InterpProcNR2(
 	 */
 
 	errorProc(interp, procNameObj);
-
-    default:
-	/*
-	 * Process other results (OK and non-standard) by doing nothing
-	 * special, skipping directly to the code afterwards that cleans up
-	 * associated memory.
-	 *
-	 * Non-standard results are processed by passing them through quickly.
-	 * This means they all work as exceptions, unwinding the stack quickly
-	 * and neatly. Who knows how well they are handled by third-party code
-	 * though...
-	 */
-
-	(void) 0;		/* do nothing */
     }
-
-    if (TCL_DTRACE_PROC_RESULT_ENABLED()) {
-	int l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 1 : 0;
-	Tcl_Obj *r = Tcl_GetObjResult(interp);
-
-	TCL_DTRACE_PROC_RESULT(l < iPtr->varFramePtr->objc ?
-		TclGetString(iPtr->varFramePtr->objv[l]) : NULL, result,
-		TclGetString(r), r);
-    }
-
-    /*
-     * Free the stack-allocated compiled locals and CallFrame. It is important
-     * to pop the call frame without freeing it first: the compiledLocals
-     * cannot be freed before the frame is popped, as the local variables must
-     * be deleted. But the compiledLocals must be freed first, as they were
-     * allocated later on the stack.
-     */
-
-    freePtr = iPtr->framePtr;
-    Tcl_PopCallFrame(interp);		/* Pop but do not free. */
-    TclStackFree(interp, freePtr->compiledLocals);
-					/* Free compiledLocals. */
-    TclStackFree(interp, freePtr);	/* Free CallFrame. */
-
-    return result;
+    goto done;
 }
 
 /*
@@ -1975,7 +1955,7 @@ TclProcCompileProc(
 {
     Interp *iPtr = (Interp *) interp;
     Tcl_CallFrame *framePtr;
-    ByteCode *codePtr = bodyPtr->internalRep.otherValuePtr;
+    ByteCode *codePtr = bodyPtr->internalRep.twoPtrValue.ptr1;
 
     /*
      * If necessary, compile the procedure's body. The compiler will allocate
@@ -2095,7 +2075,7 @@ TclProcCompileProc(
 
 	iPtr->invokeWord = 0;
 	iPtr->invokeCmdFramePtr = (hePtr ? Tcl_GetHashValue(hePtr) : NULL);
-	tclByteCodeType.setFromAnyProc(interp, bodyPtr);
+	TclSetByteCodeFromAny(interp, bodyPtr, NULL, NULL);
 	iPtr->invokeCmdFramePtr = NULL;
 	TclPopStackFrame(interp);
     } else if (codePtr->nsEpoch != nsPtr->resolverEpoch) {
@@ -2365,7 +2345,7 @@ TclNewProcBodyObj(
     TclNewObj(objPtr);
     if (objPtr) {
 	objPtr->typePtr = &tclProcBodyType;
-	objPtr->internalRep.otherValuePtr = procPtr;
+	objPtr->internalRep.twoPtrValue.ptr1 = procPtr;
 
 	procPtr->refCount++;
     }
@@ -2395,10 +2375,10 @@ ProcBodyDup(
     Tcl_Obj *srcPtr,		/* Object to copy. */
     Tcl_Obj *dupPtr)		/* Target object for the duplication. */
 {
-    Proc *procPtr = srcPtr->internalRep.otherValuePtr;
+    Proc *procPtr = srcPtr->internalRep.twoPtrValue.ptr1;
 
     dupPtr->typePtr = &tclProcBodyType;
-    dupPtr->internalRep.otherValuePtr = procPtr;
+    dupPtr->internalRep.twoPtrValue.ptr1 = procPtr;
     procPtr->refCount++;
 }
 
@@ -2425,10 +2405,9 @@ static void
 ProcBodyFree(
     Tcl_Obj *objPtr)		/* The object to clean up. */
 {
-    Proc *procPtr = objPtr->internalRep.otherValuePtr;
+    Proc *procPtr = objPtr->internalRep.twoPtrValue.ptr1;
 
-    procPtr->refCount--;
-    if (procPtr->refCount <= 0) {
+    if (procPtr->refCount-- < 2) {
 	TclProcCleanupProc(procPtr);
     }
 }
@@ -2460,7 +2439,7 @@ DupLambdaInternalRep(
 
     procPtr->refCount++;
     Tcl_IncrRefCount(nsObjPtr);
-    copyPtr->typePtr = &lambdaType;
+    copyPtr->typePtr = &tclLambdaType;
 }
 
 static void
@@ -2497,7 +2476,7 @@ SetLambdaFromAny(
 
     /*
      * Convert objPtr to list type first; if it cannot be converted, or if its
-     * length is not 2, then it cannot be converted to lambdaType.
+     * length is not 2, then it cannot be converted to tclLambdaType.
      */
 
     result = TclListObjGetElements(NULL, objPtr, &objc, &objv);
@@ -2604,8 +2583,8 @@ SetLambdaFromAny(
 		cfPtr->data.eval.path = contextPtr->data.eval.path;
 		Tcl_IncrRefCount(cfPtr->data.eval.path);
 
-		cfPtr->cmd.str.cmd = NULL;
-		cfPtr->cmd.str.len = 0;
+		cfPtr->cmd = NULL;
+		cfPtr->len = 0;
 	    }
 
 	    /*
@@ -2643,14 +2622,14 @@ SetLambdaFromAny(
     /*
      * Free the list internalrep of objPtr - this will free argsPtr, but
      * bodyPtr retains a reference from the Proc structure. Then finish the
-     * conversion to lambdaType.
+     * conversion to tclLambdaType.
      */
 
     TclFreeIntRep(objPtr);
 
     objPtr->internalRep.twoPtrValue.ptr1 = procPtr;
     objPtr->internalRep.twoPtrValue.ptr2 = nsObjPtr;
-    objPtr->typePtr = &lambdaType;
+    objPtr->typePtr = &tclLambdaType;
     return TCL_OK;
 }
 
@@ -2701,12 +2680,12 @@ TclNRApplyObjCmd(
     }
 
     /*
-     * Set lambdaPtr, convert it to lambdaType in the current interp if
+     * Set lambdaPtr, convert it to tclLambdaType in the current interp if
      * necessary.
      */
 
     lambdaPtr = objv[1];
-    if (lambdaPtr->typePtr == &lambdaType) {
+    if (lambdaPtr->typePtr == &tclLambdaType) {
 	procPtr = lambdaPtr->internalRep.twoPtrValue.ptr1;
     }
 
@@ -2721,7 +2700,6 @@ TclNRApplyObjCmd(
     else {
 	/*
 	 * Joe English's suggestion to allow cmdNames to function as lambdas.
-	 * Also requires making tclCmdNameType non-static in tclObj.c
 	 */
 
 	Tcl_Obj *elemPtr;
@@ -2785,7 +2763,7 @@ TclNRApplyObjCmd(
     }
     extraPtr->isRootEnsemble = isRootEnsemble;
 
-    result = PushProcCallFrame(procPtr, interp, objc, objv, 1);
+    result = TclPushProcCallFrame(procPtr, interp, objc, objv, 1);
     if (result == TCL_OK) {
 	TclNRAddCallback(interp, ApplyNR2, extraPtr, NULL, NULL, NULL);
 	result = TclNRInterpProcCore(interp, objv[1], 2, &MakeLambdaError);
@@ -2845,235 +2823,6 @@ MakeLambdaError(
 }
 
 /*
- *----------------------------------------------------------------------
- *
- * Tcl_DisassembleObjCmd --
- *
- *	Implementation of the "::tcl::unsupported::disassemble" command. This
- *	command is not documented, but will disassemble procedures, lambda
- *	terms and general scripts. Note that will compile terms if necessary
- *	in order to disassemble them.
- *
- *----------------------------------------------------------------------
- */
-
-int
-Tcl_DisassembleObjCmd(
-    ClientData dummy,		/* Not used. */
-    Tcl_Interp *interp,		/* Current interpreter. */
-    int objc,			/* Number of arguments. */
-    Tcl_Obj *const objv[])	/* Argument objects. */
-{
-    static const char *const types[] = {
-	"lambda", "method", "objmethod", "proc", "script", NULL
-    };
-    enum Types {
-	DISAS_LAMBDA, DISAS_CLASS_METHOD, DISAS_OBJECT_METHOD, DISAS_PROC,
-	DISAS_SCRIPT
-    };
-    int idx, result;
-    Tcl_Obj *codeObjPtr = NULL;
-    Proc *procPtr = NULL;
-    Tcl_HashEntry *hPtr;
-    Object *oPtr;
-
-    if (objc < 2) {
-	Tcl_WrongNumArgs(interp, 1, objv, "type ...");
-	return TCL_ERROR;
-    }
-    if (Tcl_GetIndexFromObj(interp, objv[1], types, "type", 0, &idx)!=TCL_OK){
-	return TCL_ERROR;
-    }
-
-    switch ((enum Types) idx) {
-    case DISAS_LAMBDA: {
-	Command cmd;
-	Tcl_Obj *nsObjPtr;
-	Tcl_Namespace *nsPtr;
-
-	/*
-	 * Compile (if uncompiled) and disassemble a lambda term.
-	 */
-
-	if (objc != 3) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "lambdaTerm");
-	    return TCL_ERROR;
-	}
-	if (objv[2]->typePtr == &lambdaType) {
-	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
-	}
-	if (procPtr == NULL || procPtr->iPtr != (Interp *) interp) {
-	    result = SetLambdaFromAny(interp, objv[2]);
-	    if (result != TCL_OK) {
-		return result;
-	    }
-	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
-	}
-
-	memset(&cmd, 0, sizeof(Command));
-	nsObjPtr = objv[2]->internalRep.twoPtrValue.ptr2;
-	result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
-	if (result != TCL_OK) {
-	    return result;
-	}
-	cmd.nsPtr = (Namespace *) nsPtr;
-	procPtr->cmdPtr = &cmd;
-	result = PushProcCallFrame(procPtr, interp, objc, objv, 1);
-	if (result != TCL_OK) {
-	    return result;
-	}
-	TclPopStackFrame(interp);
-	codeObjPtr = procPtr->bodyPtr;
-	break;
-    }
-    case DISAS_PROC:
-	if (objc != 3) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "procName");
-	    return TCL_ERROR;
-	}
-
-	procPtr = TclFindProc((Interp *) interp, TclGetString(objv[2]));
-	if (procPtr == NULL) {
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "\"%s\" isn't a procedure", TclGetString(objv[2])));
-	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "PROC",
-		    TclGetString(objv[2]), NULL);
-	    return TCL_ERROR;
-	}
-
-	/*
-	 * Compile (if uncompiled) and disassemble a procedure.
-	 */
-
-	result = PushProcCallFrame(procPtr, interp, 2, objv+1, 1);
-	if (result != TCL_OK) {
-	    return result;
-	}
-	TclPopStackFrame(interp);
-	codeObjPtr = procPtr->bodyPtr;
-	break;
-    case DISAS_SCRIPT:
-	/*
-	 * Compile and disassemble a script.
-	 */
-
-	if (objc != 3) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "script");
-	    return TCL_ERROR;
-	}
-	if (objv[2]->typePtr != &tclByteCodeType) {
-	    if (TclSetByteCodeFromAny(interp, objv[2], NULL, NULL) != TCL_OK){
-		return TCL_ERROR;
-	    }
-	}
-	codeObjPtr = objv[2];
-	break;
-
-    case DISAS_CLASS_METHOD:
-	if (objc != 4) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "className methodName");
-	    return TCL_ERROR;
-	}
-
-	/*
-	 * Look up the body of a class method.
-	 */
-
-	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
-	if (oPtr == NULL) {
-	    return TCL_ERROR;
-	}
-	if (oPtr->classPtr == NULL) {
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "\"%s\" is not a class", TclGetString(objv[2])));
-	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CLASS",
-		    TclGetString(objv[2]), NULL);
-	    return TCL_ERROR;
-	}
-	hPtr = Tcl_FindHashEntry(&oPtr->classPtr->classMethods,
-		(char *) objv[3]);
-	goto methodBody;
-    case DISAS_OBJECT_METHOD:
-	if (objc != 4) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "objectName methodName");
-	    return TCL_ERROR;
-	}
-
-	/*
-	 * Look up the body of an instance method.
-	 */
-
-	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
-	if (oPtr == NULL) {
-	    return TCL_ERROR;
-	}
-	if (oPtr->methodsPtr == NULL) {
-	    goto unknownMethod;
-	}
-	hPtr = Tcl_FindHashEntry(oPtr->methodsPtr, (char *) objv[3]);
-
-	/*
-	 * Compile (if necessary) and disassemble a method body.
-	 */
-
-    methodBody:
-	if (hPtr == NULL) {
-	unknownMethod:
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "unknown method \"%s\"", TclGetString(objv[3])));
-	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "METHOD",
-		    TclGetString(objv[3]), NULL);
-	    return TCL_ERROR;
-	}
-	procPtr = TclOOGetProcFromMethod(Tcl_GetHashValue(hPtr));
-	if (procPtr == NULL) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "body not available for this kind of method", -1));
-	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
-		    "METHODTYPE", NULL);
-	    return TCL_ERROR;
-	}
-	if (procPtr->bodyPtr->typePtr != &tclByteCodeType) {
-	    Command cmd;
-
-	    /*
-	     * Yes, this is ugly, but we need to pass the namespace in to the
-	     * compiler in two places.
-	     */
-
-	    cmd.nsPtr = (Namespace *) oPtr->namespacePtr;
-	    procPtr->cmdPtr = &cmd;
-	    result = TclProcCompileProc(interp, procPtr, procPtr->bodyPtr,
-		    (Namespace *) oPtr->namespacePtr, "body of method",
-		    TclGetString(objv[3]));
-	    procPtr->cmdPtr = NULL;
-	    if (result != TCL_OK) {
-		return result;
-	    }
-	}
-	codeObjPtr = procPtr->bodyPtr;
-	break;
-    default:
-	CLANG_ASSERT(0);
-    }
-
-    /*
-     * Do the actual disassembly.
-     */
-
-    if (((ByteCode *) codeObjPtr->internalRep.otherValuePtr)->flags
-	    & TCL_BYTECODE_PRECOMPILED) {
-	Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		"may not disassemble prebuilt bytecode", -1));
-	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
-		"BYTECODE", NULL);
-	return TCL_ERROR;
-    }
-    Tcl_SetObjResult(interp, TclDisassembleByteCodeObj(codeObjPtr));
-    return TCL_OK;
-}
-
-/*
  * Local Variables:
  * mode: c
  * c-basic-offset: 4
diff --git a/generic/tclRegexp.c b/generic/tclRegexp.c
index 6c1dc08..5bc3aa2 100644
--- a/generic/tclRegexp.c
+++ b/generic/tclRegexp.c
@@ -578,7 +578,7 @@ Tcl_GetRegExpFromObj(
      * TclRegexp* when the type is tclRegexpType.
      */
 
-    regexpPtr = objPtr->internalRep.otherValuePtr;
+    regexpPtr = objPtr->internalRep.twoPtrValue.ptr1;
 
     if ((objPtr->typePtr != &tclRegexpType) || (regexpPtr->flags != flags)) {
 	pattern = TclGetStringFromObj(objPtr, &length);
@@ -601,7 +601,7 @@ Tcl_GetRegExpFromObj(
 	 */
 
 	TclFreeIntRep(objPtr);
-	objPtr->internalRep.otherValuePtr = regexpPtr;
+	objPtr->internalRep.twoPtrValue.ptr1 = regexpPtr;
 	objPtr->typePtr = &tclRegexpType;
     }
     return (Tcl_RegExp) regexpPtr;
@@ -749,7 +749,7 @@ static void
 FreeRegexpInternalRep(
     Tcl_Obj *objPtr)		/* Regexp object with internal rep to free. */
 {
-    TclRegexp *regexpRepPtr = objPtr->internalRep.otherValuePtr;
+    TclRegexp *regexpRepPtr = objPtr->internalRep.twoPtrValue.ptr1;
 
     /*
      * If this is the last reference to the regexp, free it.
@@ -783,10 +783,10 @@ DupRegexpInternalRep(
     Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
     Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
 {
-    TclRegexp *regexpPtr = srcPtr->internalRep.otherValuePtr;
+    TclRegexp *regexpPtr = srcPtr->internalRep.twoPtrValue.ptr1;
 
     regexpPtr->refCount++;
-    copyPtr->internalRep.otherValuePtr = srcPtr->internalRep.otherValuePtr;
+    copyPtr->internalRep.twoPtrValue.ptr1 = srcPtr->internalRep.twoPtrValue.ptr1;
     copyPtr->typePtr = &tclRegexpType;
 }
 
@@ -946,7 +946,8 @@ CompileRegexp(
      * Tcl_RegExpExecObj to optionally do a fast match (avoids RE engine).
      */
 
-    if (TclReToGlob(NULL, string, length, &stringBuf, &exact) == TCL_OK) {
+    if (TclReToGlob(NULL, string, length, &stringBuf, &exact,
+	    NULL) == TCL_OK) {
 	regexpPtr->globObjPtr = TclDStringToObj(&stringBuf);
 	Tcl_IncrRefCount(regexpPtr->globObjPtr);
     } else {
diff --git a/generic/tclResult.c b/generic/tclResult.c
index 9707f20..2f2563a 100644
--- a/generic/tclResult.c
+++ b/generic/tclResult.c
@@ -230,6 +230,7 @@ Tcl_DiscardInterpState(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_SaveResult
 void
 Tcl_SaveResult(
     Tcl_Interp *interp,		/* Interpreter to save. */
@@ -304,6 +305,7 @@ Tcl_SaveResult(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_RestoreResult
 void
 Tcl_RestoreResult(
     Tcl_Interp *interp,		/* Interpreter being restored. */
@@ -372,6 +374,7 @@ Tcl_RestoreResult(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_DiscardResult
 void
 Tcl_DiscardResult(
     Tcl_SavedResult *statePtr)	/* State returned by Tcl_SaveResult. */
@@ -1109,6 +1112,7 @@ Tcl_SetObjErrorCode(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_GetErrorLine
 int
 Tcl_GetErrorLine(
     Tcl_Interp *interp)
@@ -1126,6 +1130,7 @@ Tcl_GetErrorLine(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_SetErrorLine
 void
 Tcl_SetErrorLine(
     Tcl_Interp *interp,
@@ -1587,7 +1592,7 @@ Tcl_GetReturnOptions(
     }
 
     if (result == TCL_ERROR) {
-	Tcl_AddObjErrorInfo(interp, "", -1);
+	Tcl_AddErrorInfo(interp, "");
         Tcl_DictObjPut(NULL, options, keys[KEY_ERRORSTACK], iPtr->errorStack);
     }
     if (iPtr->errorCode) {
diff --git a/generic/tclScan.c b/generic/tclScan.c
index ef7eedf..4dfc2d6 100644
--- a/generic/tclScan.c
+++ b/generic/tclScan.c
@@ -406,11 +406,14 @@ ValidateFormat(
 	     */
 	case 'd':
 	case 'e':
+	case 'E':
 	case 'f':
 	case 'g':
+	case 'G':
 	case 'i':
 	case 'o':
 	case 'x':
+	case 'X':
 	case 'b':
 	    break;
 	case 'u':
@@ -743,6 +746,7 @@ Tcl_ScanObjCmd(
 	    parseFlag |= TCL_PARSE_OCTAL_ONLY | TCL_PARSE_SCAN_PREFIXES;
 	    break;
 	case 'x':
+	case 'X':
 	    op = 'i';
 	    parseFlag |= TCL_PARSE_HEXADECIMAL_ONLY;
 	    break;
@@ -758,7 +762,9 @@ Tcl_ScanObjCmd(
 
 	case 'f':
 	case 'e':
+	case 'E':
 	case 'g':
+	case 'G':
 	    op = 'f';
 	    break;
 
diff --git a/generic/tclStrToD.c b/generic/tclStrToD.c
index 2d534a68..883e2ea 100755
--- a/generic/tclStrToD.c
+++ b/generic/tclStrToD.c
@@ -1239,7 +1239,7 @@ TclParseNumber(
 	    if (!octalSignificandOverflow) {
 		if (octalSignificandWide >
 			(Tcl_WideUInt)(((~(unsigned long)0) >> 1) + signum)) {
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 		    if (octalSignificandWide <= (MOST_BITS + signum)) {
 			objPtr->typePtr = &tclWideIntType;
 			if (signum) {
@@ -1286,7 +1286,7 @@ TclParseNumber(
 	    if (!significandOverflow) {
 		if (significandWide >
 			(Tcl_WideUInt)(((~(unsigned long)0) >> 1) + signum)) {
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 		    if (significandWide <= MOST_BITS+signum) {
 			objPtr->typePtr = &tclWideIntType;
 			if (signum) {
diff --git a/generic/tclStringObj.c b/generic/tclStringObj.c
index 04cf4ee..c04944d 100644
--- a/generic/tclStringObj.c
+++ b/generic/tclStringObj.c
@@ -140,9 +140,9 @@ typedef struct String {
 #define stringAttemptRealloc(ptr, numChars) \
     (String *) attemptckrealloc((ptr), (unsigned) STRING_SIZE(numChars) )
 #define GET_STRING(objPtr) \
-	((String *) (objPtr)->internalRep.otherValuePtr)
+	((String *) (objPtr)->internalRep.twoPtrValue.ptr1)
 #define SET_STRING(objPtr, stringPtr) \
-	((objPtr)->internalRep.otherValuePtr = (void *) (stringPtr))
+	((objPtr)->internalRep.twoPtrValue.ptr1 = (void *) (stringPtr))
 
 /*
  * TCL STRING GROWTH ALGORITHM
@@ -1123,7 +1123,8 @@ Tcl_AppendLimitedToObj(
 	if (ellipsis == NULL) {
 	    ellipsis = "...";
 	}
-	toCopy = Tcl_UtfPrev(bytes+limit+1-strlen(ellipsis), bytes) - bytes;
+	toCopy = (bytes == NULL) ? limit
+		: Tcl_UtfPrev(bytes+limit+1-strlen(ellipsis), bytes) - bytes;
     }
 
     /*
@@ -1281,23 +1282,43 @@ Tcl_AppendObjToObj(
 
     if ((TclIsPureByteArray(objPtr) || objPtr->bytes == tclEmptyStringRep)
 	    && TclIsPureByteArray(appendObjPtr)) {
-	unsigned char *bytesSrc;
-	int lengthSrc, lengthTotal;
 
 	/*
-	 * We do not assume that objPtr and appendObjPtr must be distinct!
-	 * This makes this code a bit more complex than it otherwise would be,
-	 * but in turn makes it much safer.
+	 * You might expect the code here to be
+	 *
+	 *  bytes = Tcl_GetByteArrayFromObj(appendObjPtr, &length);
+	 *  TclAppendBytesToByteArray(objPtr, bytes, length);
+	 *
+	 * and essentially all of the time that would be fine.  However,
+	 * it would run into trouble in the case where objPtr and
+	 * appendObjPtr point to the same thing.  That may never be a
+	 * good idea.  It seems to violate Copy On Write, and we don't
+	 * have any tests for the situation, since making any Tcl commands
+	 * that call Tcl_AppendObjToObj() do that appears impossible
+	 * (They honor Copy On Write!).  For the sake of extensions that
+	 * go off into that realm, though, here's a more complex approach
+	 * that can handle all the cases.
 	 */
 
+	/* Get lengths */
+	int lengthSrc;
+
 	(void) Tcl_GetByteArrayFromObj(objPtr, &length);
 	(void) Tcl_GetByteArrayFromObj(appendObjPtr, &lengthSrc);
-	lengthTotal = length + lengthSrc;
-	if (((length > lengthSrc) ? length : lengthSrc) > lengthTotal) {
-	    Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
-	}
-	bytesSrc = Tcl_GetByteArrayFromObj(appendObjPtr, NULL);
-	TclAppendBytesToByteArray(objPtr, bytesSrc, lengthSrc);
+
+	/* Grow buffer enough for the append */
+	TclAppendBytesToByteArray(objPtr, NULL, lengthSrc);
+
+	/* Reset objPtr back to the original value */
+	Tcl_SetByteArrayLength(objPtr, length);
+
+	/*
+	 * Now do the append knowing that buffer growth cannot cause
+	 * any trouble.
+	 */
+
+	TclAppendBytesToByteArray(objPtr,
+		Tcl_GetByteArrayFromObj(appendObjPtr, NULL), lengthSrc);
 	return;
     }
 
@@ -1415,7 +1436,7 @@ AppendUnicodeToUnicodeRep(
 	 * the reallocs below.
 	 */
 
-	if (unicode >= stringPtr->unicode
+	if (unicode && unicode >= stringPtr->unicode
 		&& unicode <= stringPtr->unicode + stringPtr->maxChars) {
 	    offset = unicode - stringPtr->unicode;
 	}
@@ -1437,8 +1458,10 @@ AppendUnicodeToUnicodeRep(
      * trailing null.
      */
 
-    memmove(stringPtr->unicode + stringPtr->numChars, unicode,
-	    appendNumChars * sizeof(Tcl_UniChar));
+    if (unicode) {
+	memmove(stringPtr->unicode + stringPtr->numChars, unicode,
+		appendNumChars * sizeof(Tcl_UniChar));
+    }
     stringPtr->unicode[numChars] = 0;
     stringPtr->numChars = numChars;
     stringPtr->allocated = 0;
@@ -1577,7 +1600,7 @@ AppendUtfToUtfRep(
 	 * the reallocs below.
 	 */
 
-	if (bytes >= objPtr->bytes
+	if (bytes && bytes >= objPtr->bytes
 		&& bytes <= objPtr->bytes + objPtr->length) {
 	    offset = bytes - objPtr->bytes;
 	}
@@ -1605,7 +1628,9 @@ AppendUtfToUtfRep(
     stringPtr->numChars = -1;
     stringPtr->hasUnicode = 0;
 
-    memmove(objPtr->bytes + oldLength, bytes, numBytes);
+    if (bytes) {
+	memmove(objPtr->bytes + oldLength, bytes, numBytes);
+    }
     objPtr->bytes[newLength] = 0;
     objPtr->length = newLength;
 }
@@ -2638,6 +2663,38 @@ Tcl_ObjPrintf(
 /*
  *---------------------------------------------------------------------------
  *
+ * TclGetStringStorage --
+ *
+ *	Returns the string storage space of a Tcl_Obj.
+ *
+ * Results:
+ *	The pointer value objPtr->bytes is returned and the number of bytes
+ *	allocated there is written to *sizePtr (if known).
+ *
+ * Side effects:
+ *	May set objPtr->bytes.
+ *
+ *---------------------------------------------------------------------------
+ */
+
+char *
+TclGetStringStorage(
+    Tcl_Obj *objPtr,
+    unsigned int *sizePtr)
+{
+    String *stringPtr;
+
+    if (objPtr->typePtr != &tclStringType || objPtr->bytes == NULL) {
+	return TclGetStringFromObj(objPtr, (int *)sizePtr);
+    }
+
+    stringPtr = GET_STRING(objPtr);
+    *sizePtr = stringPtr->allocated;
+    return objPtr->bytes;
+}
+/*
+ *---------------------------------------------------------------------------
+ *
  * TclStringObjReverse --
  *
  *	Implements the [string reverse] operation.
@@ -2828,7 +2885,11 @@ ExtendUnicodeRepWithString(
     }
 
     stringPtr->hasUnicode = 1;
-    stringPtr->numChars = needed;
+    if (bytes) {
+	stringPtr->numChars = needed;
+    } else {
+	numAppendChars = 0;
+    }
     for (dst=stringPtr->unicode + numOrigChars; numAppendChars-- > 0; dst++) {
 	bytes += TclUtfToUniChar(bytes, dst);
     }
diff --git a/generic/tclStringTrim.h b/generic/tclStringTrim.h
new file mode 100644
index 0000000..030e4ec
--- /dev/null
+++ b/generic/tclStringTrim.h
@@ -0,0 +1,43 @@
+/*
+ * tclStringTrim.h --
+ *
+ *	This file contains the definition of what characters are to be trimmed
+ *	from a string by [string trim] by default. It's only needed by Tcl's
+ *	implementation; it does not form a public or private API at all.
+ *
+ * Copyright (c) 1987-1993 The Regents of the University of California.
+ * Copyright (c) 1994-1997 Sun Microsystems, Inc.
+ * Copyright (c) 1998-2000 Scriptics Corporation.
+ * Copyright (c) 2002 ActiveState Corporation.
+ * Copyright (c) 2003-2013 Donal K. Fellows.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#ifndef TCL_STRING_TRIM_H
+#define TCL_STRING_TRIM_H
+
+/*
+ * Default set of characters to trim in [string trim] and friends. This is a
+ * UTF-8 literal string containing all Unicode space characters. [TIP #413]
+ */
+
+MODULE_SCOPE const char tclDefaultTrimSet[];
+
+/*
+ * The whitespace trimming set used when [concat]enating. This is a subset of
+ * the above, and deliberately so.
+ */
+
+#define CONCAT_TRIM_SET " \f\v\r\t\n"
+
+#endif /* TCL_STRING_TRIM_H */
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
diff --git a/generic/tclStubInit.c b/generic/tclStubInit.c
index a8d74ee..7a84cba 100644
--- a/generic/tclStubInit.c
+++ b/generic/tclStubInit.c
@@ -41,6 +41,12 @@
 #undef Tcl_FindExecutable
 #undef TclpGetPid
 #undef TclSockMinimumBuffers
+#define TclBackgroundException Tcl_BackgroundException
+#undef Tcl_SetIntObj
+#undef TclpInetNtoa
+#undef TclWinGetServByName
+#undef TclWinGetSockOpt
+#undef TclWinSetSockOpt
 
 /* See bug 510001: TclSockMinimumBuffers needs plat imp */
 #ifdef _WIN64
@@ -53,6 +59,31 @@ static int TclSockMinimumBuffersOld(int sock, int size)
 }
 #endif
 
+#define TclSetStartupScriptPath setStartupScriptPath
+static void TclSetStartupScriptPath(Tcl_Obj *path)
+{
+    Tcl_SetStartupScript(path, NULL);
+}
+#define TclGetStartupScriptPath getStartupScriptPath
+static Tcl_Obj *TclGetStartupScriptPath(void)
+{
+    return Tcl_GetStartupScript(NULL);
+}
+#define TclSetStartupScriptFileName setStartupScriptFileName
+static void TclSetStartupScriptFileName(
+    const char *fileName)
+{
+    Tcl_SetStartupScript(Tcl_NewStringObj(fileName,-1), NULL);
+}
+#define TclGetStartupScriptFileName getStartupScriptFileName
+static const char *TclGetStartupScriptFileName(void)
+{
+    Tcl_Obj *path = Tcl_GetStartupScript(NULL);
+    if (path == NULL) {
+	return NULL;
+    }
+    return Tcl_GetStringFromObj(path, NULL);
+}
 
 #if defined(_WIN32) || defined(__CYGWIN__)
 #undef TclWinNToHS
@@ -62,9 +93,10 @@ static unsigned short TclWinNToHS(unsigned short ns) {
 }
 #endif
 
-#ifdef __WIN32__
+#ifdef _WIN32
 #   define TclUnixWaitForFile 0
 #   define TclUnixCopyFile 0
+#   define TclUnixOpenTemporaryFile 0
 #   define TclpReaddir 0
 #   define TclpIsAtty 0
 #elif defined(__CYGWIN__)
@@ -82,7 +114,8 @@ TclpIsAtty(int fd)
     return isatty(fd);
 }
 
-int
+#define TclWinGetPlatformId winGetPlatformId
+static int
 TclWinGetPlatformId()
 {
     /* Don't bother to determine the real platform on cygwin,
@@ -98,27 +131,31 @@ void *TclWinGetTclInstance()
     return hInstance;
 }
 
-int
+#define TclWinSetSockOpt winSetSockOpt
+static int
 TclWinSetSockOpt(SOCKET s, int level, int optname,
 	    const char *optval, int optlen)
 {
     return setsockopt((int) s, level, optname, optval, optlen);
 }
 
-int
+#define TclWinGetSockOpt winGetSockOpt
+static int
 TclWinGetSockOpt(SOCKET s, int level, int optname,
 	    char *optval, int *optlen)
 {
     return getsockopt((int) s, level, optname, optval, optlen);
 }
 
-struct servent *
+#define TclWinGetServByName winGetServByName
+static struct servent *
 TclWinGetServByName(const char *name, const char *proto)
 {
     return getservbyname(name, proto);
 }
 
-char *
+#define TclWinNoBackslash winNoBackslash
+static char *
 TclWinNoBackslash(char *path)
 {
     char *p;
@@ -169,6 +206,89 @@ Tcl_WinTCharToUtf(
 	    string, len, dsPtr);
 }
 
+#if defined(TCL_WIDE_INT_IS_LONG)
+/* On Cygwin64, long is 64-bit while on Win64 long is 32-bit. Therefore
+ * we have to make sure that all stub entries on Cygwin64 follow the Win64
+ * signature. Tcl 9 must find a better solution, but that cannot be done
+ * without introducing a binary incompatibility.
+ */
+#define Tcl_DbNewLongObj ((Tcl_Obj*(*)(long,const char*,int))dbNewLongObj)
+static Tcl_Obj *dbNewLongObj(
+    int intValue,
+    const char *file,
+    int line
+) {
+#ifdef TCL_MEM_DEBUG
+    register Tcl_Obj *objPtr;
+
+    TclDbNewObj(objPtr, file, line);
+    objPtr->bytes = NULL;
+
+    objPtr->internalRep.longValue = (long) intValue;
+    objPtr->typePtr = &tclIntType;
+    return objPtr;
+#else
+    return Tcl_NewIntObj(intValue);
+#endif
+}
+#define Tcl_GetLongFromObj (int(*)(Tcl_Interp*,Tcl_Obj*,long*))Tcl_GetIntFromObj
+#define Tcl_NewLongObj (Tcl_Obj*(*)(long))Tcl_NewIntObj
+#define Tcl_SetLongObj (void(*)(Tcl_Obj*,long))Tcl_SetIntObj
+static int exprInt(Tcl_Interp *interp, const char *expr, int *ptr){
+    long longValue;
+    int result = Tcl_ExprLong(interp, expr, &longValue);
+    if (result == TCL_OK) {
+	    if ((longValue >= -(long)(UINT_MAX))
+		    && (longValue <= (long)(UINT_MAX))) {
+	    *ptr = (int)longValue;
+	} else {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "integer value too large to represent as non-long integer", -1));
+	    result = TCL_ERROR;
+	}
+    }
+    return result;
+}
+#define Tcl_ExprLong (int(*)(Tcl_Interp*,const char*,long*))exprInt
+static int exprIntObj(Tcl_Interp *interp, Tcl_Obj*expr, int *ptr){
+    long longValue;
+    int result = Tcl_ExprLongObj(interp, expr, &longValue);
+    if (result == TCL_OK) {
+	    if ((longValue >= -(long)(UINT_MAX))
+		    && (longValue <= (long)(UINT_MAX))) {
+	    *ptr = (int)longValue;
+	} else {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "integer value too large to represent as non-long integer", -1));
+	    result = TCL_ERROR;
+	}
+    }
+    return result;
+}
+#define Tcl_ExprLongObj (int(*)(Tcl_Interp*,Tcl_Obj*,long*))exprIntObj
+static int uniCharNcmp(const Tcl_UniChar *ucs, const Tcl_UniChar *uct, unsigned int n){
+   return Tcl_UniCharNcmp(ucs, uct, (unsigned long)n);
+}
+#define Tcl_UniCharNcmp (int(*)(const Tcl_UniChar*,const Tcl_UniChar*,unsigned long))uniCharNcmp
+static int utfNcmp(const char *s1, const char *s2, unsigned int n){
+   return Tcl_UtfNcmp(s1, s2, (unsigned long)n);
+}
+#define Tcl_UtfNcmp (int(*)(const char*,const char*,unsigned long))utfNcmp
+static int utfNcasecmp(const char *s1, const char *s2, unsigned int n){
+   return Tcl_UtfNcasecmp(s1, s2, (unsigned long)n);
+}
+#define Tcl_UtfNcasecmp (int(*)(const char*,const char*,unsigned long))utfNcasecmp
+static int uniCharNcasecmp(const Tcl_UniChar *ucs, const Tcl_UniChar *uct, unsigned int n){
+   return Tcl_UniCharNcasecmp(ucs, uct, (unsigned long)n);
+}
+#define Tcl_UniCharNcasecmp (int(*)(const Tcl_UniChar*,const Tcl_UniChar*,unsigned long))uniCharNcasecmp
+static int formatInt(char *buffer, int n){
+   return TclFormatInt(buffer, (long)n);
+}
+#define TclFormatInt (int(*)(char *, long))formatInt
+
+#endif
+
 #else /* UNIX and MAC */
 #   define TclpLocaltime_unix TclpLocaltime
 #   define TclpGmtime_unix TclpGmtime
@@ -346,8 +466,8 @@ static const TclIntStubs tclIntStubs = {
     0, /* 155 */
     TclRegError, /* 156 */
     TclVarTraceExists, /* 157 */
-    0, /* 158 */
-    0, /* 159 */
+    TclSetStartupScriptFileName, /* 158 */
+    TclGetStartupScriptFileName, /* 159 */
     0, /* 160 */
     TclChannelTransform, /* 161 */
     TclChannelEventScriptInvoker, /* 162 */
@@ -355,8 +475,8 @@ static const TclIntStubs tclIntStubs = {
     TclExpandCodeArray, /* 164 */
     TclpSetInitialEncodings, /* 165 */
     TclListObjSetElement, /* 166 */
-    0, /* 167 */
-    0, /* 168 */
+    TclSetStartupScriptPath, /* 167 */
+    TclGetStartupScriptPath, /* 168 */
     TclpUtfNcmp2, /* 169 */
     TclCheckInterpTraces, /* 170 */
     TclCheckExecutionTraces, /* 171 */
@@ -366,8 +486,8 @@ static const TclIntStubs tclIntStubs = {
     TclCallVarTraces, /* 175 */
     TclCleanupVar, /* 176 */
     TclVarErrMsg, /* 177 */
-    0, /* 178 */
-    0, /* 179 */
+    Tcl_SetStartupScript, /* 178 */
+    Tcl_GetStartupScript, /* 179 */
     0, /* 180 */
     0, /* 181 */
     TclpLocaltime, /* 182 */
@@ -424,7 +544,7 @@ static const TclIntStubs tclIntStubs = {
     TclGetSrcInfoForPc, /* 233 */
     TclVarHashCreateVar, /* 234 */
     TclInitVarHashTable, /* 235 */
-    0, /* 236 */
+    TclBackgroundException, /* 236 */
     TclResetCancellation, /* 237 */
     TclNRInterpProc, /* 238 */
     TclNRInterpProcCore, /* 239 */
@@ -439,12 +559,13 @@ static const TclIntStubs tclIntStubs = {
     TclCopyChannel, /* 248 */
     TclDoubleDigits, /* 249 */
     TclSetSlaveCancelFlags, /* 250 */
+    TclRegisterLiteral, /* 251 */
 };
 
 static const TclIntPlatStubs tclIntPlatStubs = {
     TCL_STUB_MAGIC,
     0,
-#if !defined(__WIN32__) && !defined(__CYGWIN__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(__CYGWIN__) && !defined(MAC_OSX_TCL) /* UNIX */
     TclGetAndDetachPids, /* 0 */
     TclpCloseFile, /* 1 */
     TclpCreateCommandChannel, /* 2 */
@@ -475,8 +596,9 @@ static const TclIntPlatStubs tclIntPlatStubs = {
     0, /* 27 */
     0, /* 28 */
     TclWinCPUID, /* 29 */
+    TclUnixOpenTemporaryFile, /* 30 */
 #endif /* UNIX */
-#if defined(__WIN32__) || defined(__CYGWIN__) /* WIN */
+#if defined(_WIN32) || defined(__CYGWIN__) /* WIN */
     TclWinConvertError, /* 0 */
     TclWinConvertWSAError, /* 1 */
     TclWinGetServByName, /* 2 */
@@ -507,6 +629,7 @@ static const TclIntPlatStubs tclIntPlatStubs = {
     TclWinFlushDirtyChannels, /* 27 */
     TclWinResetInterfaces, /* 28 */
     TclWinCPUID, /* 29 */
+    TclUnixOpenTemporaryFile, /* 30 */
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
     TclGetAndDetachPids, /* 0 */
@@ -539,13 +662,14 @@ static const TclIntPlatStubs tclIntPlatStubs = {
     0, /* 27 */
     0, /* 28 */
     TclWinCPUID, /* 29 */
+    TclUnixOpenTemporaryFile, /* 30 */
 #endif /* MACOSX */
 };
 
 static const TclPlatStubs tclPlatStubs = {
     TCL_STUB_MAGIC,
     0,
-#if defined(__WIN32__) || defined(__CYGWIN__) /* WIN */
+#if defined(_WIN32) || defined(__CYGWIN__) /* WIN */
     Tcl_WinUtfToTChar, /* 0 */
     Tcl_WinTCharToUtf, /* 1 */
 #endif /* WIN */
@@ -642,19 +766,19 @@ const TclStubs tclStubs = {
     Tcl_DbCkalloc, /* 6 */
     Tcl_DbCkfree, /* 7 */
     Tcl_DbCkrealloc, /* 8 */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
     Tcl_CreateFileHandler, /* 9 */
 #endif /* UNIX */
-#if defined(__WIN32__) /* WIN */
+#if defined(_WIN32) /* WIN */
     0, /* 9 */
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
     Tcl_CreateFileHandler, /* 9 */
 #endif /* MACOSX */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
     Tcl_DeleteFileHandler, /* 10 */
 #endif /* UNIX */
-#if defined(__WIN32__) /* WIN */
+#if defined(_WIN32) /* WIN */
     0, /* 10 */
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
@@ -816,10 +940,10 @@ const TclStubs tclStubs = {
     Tcl_GetMaster, /* 164 */
     Tcl_GetNameOfExecutable, /* 165 */
     Tcl_GetObjResult, /* 166 */
-#if !defined(__WIN32__) && !defined(MAC_OSX_TCL) /* UNIX */
+#if !defined(_WIN32) && !defined(MAC_OSX_TCL) /* UNIX */
     Tcl_GetOpenFile, /* 167 */
 #endif /* UNIX */
-#if defined(__WIN32__) /* WIN */
+#if defined(_WIN32) /* WIN */
     0, /* 167 */
 #endif /* WIN */
 #ifdef MAC_OSX_TCL /* MACOSX */
@@ -1287,6 +1411,7 @@ const TclStubs tclStubs = {
     Tcl_LoadFile, /* 627 */
     Tcl_FindSymbol, /* 628 */
     Tcl_FSUnloadFile, /* 629 */
+    Tcl_ZlibStreamSetCompressionDictionary, /* 630 */
 };
 
 /* !END!: Do not edit above this line. */
diff --git a/generic/tclStubLib.c b/generic/tclStubLib.c
index f569820..859cbf9 100644
--- a/generic/tclStubLib.c
+++ b/generic/tclStubLib.c
@@ -11,15 +11,6 @@
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  */
 
-/*
- * We need to ensure that we use the stub macros so that this file contains no
- * references to any of the stub functions. This will make it possible to
- * build an extension that references Tcl_InitStubs but doesn't end up
- * including the rest of the stub functions.
- */
-
-#define USE_TCL_STUBS
-
 #include "tclInt.h"
 
 MODULE_SCOPE const TclStubs *tclStubsPtr;
@@ -32,24 +23,8 @@ const TclPlatStubs *tclPlatStubsPtr = NULL;
 const TclIntStubs *tclIntStubsPtr = NULL;
 const TclIntPlatStubs *tclIntPlatStubsPtr = NULL;
 
-static const TclStubs *
-HasStubSupport(
-    Tcl_Interp *interp)
-{
-    Interp *iPtr = (Interp *) interp;
-
-    if (iPtr->stubTable && (iPtr->stubTable->magic == TCL_STUB_MAGIC)) {
-	return iPtr->stubTable;
-    }
-
-    iPtr->result =
-	    (char *)"This interpreter does not support stubs-enabled extensions.";
-    iPtr->freeProc = TCL_STATIC;
-    return NULL;
-}
-
 /*
- * Use our own isdigit to avoid linking to libc on windows
+ * Use our own isDigit to avoid linking to libc on windows
  */
 
 static int isDigit(const int c)
@@ -74,15 +49,17 @@ static int isDigit(const int c)
  *
  *----------------------------------------------------------------------
  */
-
+#undef Tcl_InitStubs
 MODULE_SCOPE const char *
 Tcl_InitStubs(
     Tcl_Interp *interp,
     const char *version,
     int exact)
 {
+    Interp *iPtr = (Interp *) interp;
     const char *actualVersion = NULL;
     ClientData pkgData = NULL;
+    const TclStubs *stubsPtr = iPtr->stubTable;
 
     /*
      * We can't optimize this check by caching tclStubsPtr because that
@@ -90,12 +67,13 @@ Tcl_InitStubs(
      * times. [Bug 615304]
      */
 
-    tclStubsPtr = HasStubSupport(interp);
-    if (!tclStubsPtr) {
+    if (!stubsPtr || (stubsPtr->magic != TCL_STUB_MAGIC)) {
+	iPtr->result = "interpreter uses an incompatible stubs mechanism";
+	iPtr->freeProc = TCL_STATIC;
 	return NULL;
     }
 
-    actualVersion = Tcl_PkgRequireEx(interp, "Tcl", version, 0, &pkgData);
+    actualVersion = stubsPtr->tcl_PkgRequireEx(interp, "Tcl", version, 0, &pkgData);
     if (actualVersion == NULL) {
 	return NULL;
     }
@@ -113,19 +91,19 @@ Tcl_InitStubs(
 	    while (*p && (*p == *q)) {
 		p++; q++;
 	    }
-	    if (*p) {
+	    if (*p || isDigit(*q)) {
 		/* Construct error message */
-		Tcl_PkgRequireEx(interp, "Tcl", version, 1, NULL);
+		stubsPtr->tcl_PkgRequireEx(interp, "Tcl", version, 1, NULL);
 		return NULL;
 	    }
 	} else {
-	    actualVersion = Tcl_PkgRequireEx(interp, "Tcl", version, 1, NULL);
+	    actualVersion = stubsPtr->tcl_PkgRequireEx(interp, "Tcl", version, 1, NULL);
 	    if (actualVersion == NULL) {
 		return NULL;
 	    }
 	}
     }
-    tclStubsPtr = (TclStubs *) pkgData;
+    tclStubsPtr = (TclStubs *)pkgData;
 
     if (tclStubsPtr->hooks) {
 	tclPlatStubsPtr = tclStubsPtr->hooks->tclPlatStubs;
diff --git a/generic/tclTest.c b/generic/tclTest.c
index 5dc95f9..0f4b6d4 100644
--- a/generic/tclTest.c
+++ b/generic/tclTest.c
@@ -201,8 +201,9 @@ static int		EncodingFromUtfProc(ClientData clientData,
 			    int *dstCharsPtr);
 static void		ExitProcEven(ClientData clientData);
 static void		ExitProcOdd(ClientData clientData);
-static int		GetTimesCmd(ClientData clientData,
-			    Tcl_Interp *interp, int argc, const char **argv);
+static int		GetTimesObjCmd(ClientData clientData,
+			    Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const objv[]);
 static void		MainLoop(void);
 static int		NoopCmd(ClientData clientData,
 			    Tcl_Interp *interp, int argc, const char **argv);
@@ -219,6 +220,9 @@ static void		SpecialFree(char *blockPtr);
 static int		StaticInitProc(Tcl_Interp *interp);
 static int		TestasyncCmd(ClientData dummy,
 			    Tcl_Interp *interp, int argc, const char **argv);
+static int		TestbytestringObjCmd(ClientData clientData,
+			    Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const objv[]);
 static int		TestcmdinfoCmd(ClientData dummy,
 			    Tcl_Interp *interp, int argc, const char **argv);
 static int		TestcmdtokenCmd(ClientData dummy,
@@ -327,10 +331,12 @@ static int		TestreturnObjCmd(ClientData dummy,
 			    Tcl_Obj *const objv[]);
 static void		TestregexpXflags(const char *string,
 			    int length, int *cflagsPtr, int *eflagsPtr);
+#ifndef TCL_NO_DEPRECATED
 static int		TestsaveresultCmd(ClientData dummy,
 			    Tcl_Interp *interp, int objc,
 			    Tcl_Obj *const objv[]);
 static void		TestsaveresultFree(char *blockPtr);
+#endif /* TCL_NO_DEPRECATED */
 static int		TestsetassocdataCmd(ClientData dummy,
 			    Tcl_Interp *interp, int argc, const char **argv);
 static int		TestsetCmd(ClientData dummy,
@@ -381,7 +387,8 @@ static Tcl_FSRenameFileProc TestReportRenameFile;
 static Tcl_FSCreateDirectoryProc TestReportCreateDirectory;
 static Tcl_FSCopyDirectoryProc TestReportCopyDirectory;
 static Tcl_FSRemoveDirectoryProc TestReportRemoveDirectory;
-static Tcl_FSLoadFileProc TestReportLoadFile;
+static int TestReportLoadFile(Tcl_Interp *interp, Tcl_Obj *pathPtr,
+	Tcl_LoadHandle *handlePtr, Tcl_FSUnloadFileProc **unloadProcPtr);
 static Tcl_FSLinkProc TestReportLink;
 static Tcl_FSFileAttrStringsProc TestReportFileAttrStrings;
 static Tcl_FSFileAttrsGetProc TestReportFileAttrsGet;
@@ -411,10 +418,10 @@ static int		TestNRELevels(ClientData clientData,
 static int		TestInterpResolverCmd(ClientData clientData,
 			    Tcl_Interp *interp, int objc,
 			    Tcl_Obj *const objv[]);
-#if defined(HAVE_CPUID) || defined(__WIN32__)
+#if defined(HAVE_CPUID) || defined(_WIN32)
 static int		TestcpuidCmd(ClientData dummy,
 			    Tcl_Interp* interp, int objc,
-			    Tcl_Obj *CONST objv[]);
+			    Tcl_Obj *const objv[]);
 #endif
 
 static const Tcl_Filesystem testReportingFilesystem = {
@@ -446,7 +453,7 @@ static const Tcl_Filesystem testReportingFilesystem = {
     TestReportRenameFile,
     TestReportCopyDirectory,
     TestReportLstat,
-    TestReportLoadFile,
+    (Tcl_FSLoadFileProc *) TestReportLoadFile,
     NULL /* cwd */,
     TestReportChdir
 };
@@ -522,7 +529,9 @@ int
 Tcltest_Init(
     Tcl_Interp *interp)		/* Interpreter for application. */
 {
+#ifndef TCL_NO_DEPRECATED
     Tcl_ValueType t3ArgTypes[2];
+#endif /* TCL_NO_DEPRECATED */
 
     Tcl_Obj *listPtr;
     Tcl_Obj **objv;
@@ -551,9 +560,10 @@ Tcltest_Init(
      * Create additional commands and math functions for testing Tcl.
      */
 
-    Tcl_CreateCommand(interp, "gettimes", GetTimesCmd, NULL, NULL);
+    Tcl_CreateObjCommand(interp, "gettimes", GetTimesObjCmd, NULL, NULL);
     Tcl_CreateCommand(interp, "noop", NoopCmd, NULL, NULL);
     Tcl_CreateObjCommand(interp, "noop", NoopObjCmd, NULL, NULL);
+    Tcl_CreateObjCommand(interp, "testbytestring", TestbytestringObjCmd, NULL, NULL);
     Tcl_CreateObjCommand(interp, "testwrongnumargs", TestWrongNumArgsObjCmd,
 	    NULL, NULL);
     Tcl_CreateObjCommand(interp, "testfilesystem", TestFilesystemObjCmd,
@@ -641,8 +651,10 @@ Tcltest_Init(
 	    NULL, NULL);
     Tcl_CreateObjCommand(interp, "testreturn", TestreturnObjCmd,
 	    NULL, NULL);
+#ifndef TCL_NO_DEPRECATED
     Tcl_CreateObjCommand(interp, "testsaveresult", TestsaveresultCmd,
 	    NULL, NULL);
+#endif /* TCL_NO_DEPRECATED */
     Tcl_CreateCommand(interp, "testsetassocdata", TestsetassocdataCmd,
 	    NULL, NULL);
     Tcl_CreateCommand(interp, "testsetnoerr", TestsetCmd,
@@ -664,22 +676,26 @@ Tcltest_Init(
     Tcl_CreateCommand(interp, "testtranslatefilename",
 	    TesttranslatefilenameCmd, NULL, NULL);
     Tcl_CreateCommand(interp, "testupvar", TestupvarCmd, NULL, NULL);
+#ifndef TCL_NO_DEPRECATED
     Tcl_CreateMathFunc(interp, "T1", 0, NULL, TestMathFunc, (ClientData) 123);
     Tcl_CreateMathFunc(interp, "T2", 0, NULL, TestMathFunc, (ClientData) 345);
+#endif /* TCL_NO_DEPRECATED */
     Tcl_CreateCommand(interp, "testmainthread", TestmainthreadCmd, NULL,
 	    NULL);
     Tcl_CreateCommand(interp, "testsetmainloop", TestsetmainloopCmd,
 	    NULL, NULL);
     Tcl_CreateCommand(interp, "testexitmainloop", TestexitmainloopCmd,
 	    NULL, NULL);
-#if defined(HAVE_CPUID) || defined(__WIN32__)
+#if defined(HAVE_CPUID) || defined(_WIN32)
     Tcl_CreateObjCommand(interp, "testcpuid", TestcpuidCmd,
 	    (ClientData) 0, NULL);
 #endif
+#ifndef TCL_NO_DEPRECATED
     t3ArgTypes[0] = TCL_EITHER;
     t3ArgTypes[1] = TCL_EITHER;
     Tcl_CreateMathFunc(interp, "T3", 2, t3ArgTypes, TestMathFunc2,
 	    NULL);
+#endif /* TCL_NO_DEPRECATED */
 
     Tcl_CreateObjCommand(interp, "testnrelevels", TestNRELevels,
 	    NULL, NULL);
@@ -1544,14 +1560,14 @@ DelCallbackProc(
  *
  * TestdelCmd --
  *
- *	This procedure implements the "testdcall" command.  It is used
- *	to test Tcl_CallWhenDeleted.
+ *	This procedure implements the "testdel" command.  It is used
+ *	to test calling of command deletion callbacks.
  *
  * Results:
  *	A standard Tcl result.
  *
  * Side effects:
- *	Creates and deletes interpreters.
+ *	Creates a command.
  *
  *----------------------------------------------------------------------
  */
@@ -1845,7 +1861,7 @@ TestdstringCmd(
 	if (Tcl_GetInt(interp, argv[2], &count) != TCL_OK) {
 	    return TCL_ERROR;
 	}
-	Tcl_DStringTrunc(&dstring, count);
+	Tcl_DStringSetLength(&dstring, count);
     } else if (strcmp(argv[1], "start") == 0) {
 	if (argc != 2) {
 	    goto wrongNumArgs;
@@ -4397,8 +4413,26 @@ TestseterrorcodeCmd(
 	Tcl_SetResult(interp, "too many args", TCL_STATIC);
 	return TCL_ERROR;
     }
-    Tcl_SetErrorCode(interp, argv[1], argv[2], argv[3], argv[4],
-	    argv[5], NULL);
+    switch (argc) {
+    case 1:
+	Tcl_SetErrorCode(interp, "NONE", NULL);
+	break;
+    case 2:
+	Tcl_SetErrorCode(interp, argv[1], NULL);
+	break;
+    case 3:
+	Tcl_SetErrorCode(interp, argv[1], argv[2], NULL);
+	break;
+    case 4:
+	Tcl_SetErrorCode(interp, argv[1], argv[2], argv[3], NULL);
+	break;
+    case 5:
+	Tcl_SetErrorCode(interp, argv[1], argv[2], argv[3], argv[4], NULL);
+	break;
+    case 6:
+	Tcl_SetErrorCode(interp, argv[1], argv[2], argv[3], argv[4],
+		argv[5], NULL);
+    }
     return TCL_ERROR;
 }
 
@@ -4688,7 +4722,7 @@ TestgetvarfullnameCmd(
 /*
  *----------------------------------------------------------------------
  *
- * GetTimesCmd --
+ * GetTimesObjCmd --
  *
  *	This procedure implements the "gettimes" command.  It is used for
  *	computing the time needed for various basic operations such as reading
@@ -4704,11 +4738,11 @@ TestgetvarfullnameCmd(
  */
 
 static int
-GetTimesCmd(
+GetTimesObjCmd(
     ClientData unused,		/* Unused. */
     Tcl_Interp *interp,		/* The current interpreter. */
-    int argc,			/* The number of arguments. */
-    const char **argv)		/* The argument strings. */
+    int notused1,			/* Number of arguments. */
+    Tcl_Obj *const notused2[])	/* The argument objects. */
 {
     Interp *iPtr = (Interp *) interp;
     int i, n;
@@ -4922,6 +4956,42 @@ NoopObjCmd(
 /*
  *----------------------------------------------------------------------
  *
+ * TestbytestringObjCmd --
+ *
+ *	This object-based procedure constructs a string which can
+ *	possibly contain invalid UTF-8 bytes.
+ *
+ * Results:
+ *	Returns the TCL_OK result code.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+TestbytestringObjCmd(
+    ClientData unused,		/* Not used. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* The argument objects. */
+{
+    int n;
+    const char *p;
+
+    if (objc != 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "bytearray");
+	return TCL_ERROR;
+    }
+    p = (const char *)Tcl_GetByteArrayFromObj(objv[1], &n);
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(p, n));
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * TestsetCmd --
  *
  *	Implements the "testset{err,noerr}" cmds that are used when testing
@@ -5002,6 +5072,7 @@ Testset2Cmd(
     }
 }
 
+#ifndef TCL_NO_DEPRECATED
 /*
  *----------------------------------------------------------------------
  *
@@ -5135,6 +5206,7 @@ TestsaveresultFree(
 {
     freeCount++;
 }
+#endif /* TCL_NO_DEPRECATED */
 
 /*
  *----------------------------------------------------------------------
@@ -6169,7 +6241,7 @@ TestReport(
 	 * API, but there you go. We should convert it to objects.
 	 */
 
-	Tcl_SavedResult savedResult;
+	Tcl_Obj *savedResult;
 	Tcl_DString ds;
 
 	Tcl_DStringInit(&ds);
@@ -6183,11 +6255,15 @@ TestReport(
 	    Tcl_DStringAppendElement(&ds, Tcl_GetString(arg2));
 	}
 	Tcl_DStringEndSublist(&ds);
-	Tcl_SaveResult(interp, &savedResult);
+	savedResult = Tcl_GetObjResult(interp);
+	Tcl_IncrRefCount(savedResult);
+	Tcl_SetObjResult(interp, Tcl_NewObj());
 	Tcl_Eval(interp, Tcl_DStringValue(&ds));
 	Tcl_DStringFree(&ds);
-	Tcl_RestoreResult(interp, &savedResult);
-   }
+	Tcl_ResetResult(interp);
+	Tcl_SetObjResult(interp, savedResult);
+	Tcl_DecrRefCount(savedResult);
+    }
 }
 
 static int
@@ -6613,7 +6689,7 @@ TestNumUtfCharsCmd(
     return TCL_OK;
 }
 
-#if defined(HAVE_CPUID) || defined(__WIN32__)
+#if defined(HAVE_CPUID) || defined(_WIN32)
 /*
  *----------------------------------------------------------------------
  *
diff --git a/generic/tclTestObj.c b/generic/tclTestObj.c
index 7494beb..f36b07f 100644
--- a/generic/tclTestObj.c
+++ b/generic/tclTestObj.c
@@ -555,7 +555,7 @@ TestindexobjCmd(
 	}
 
 	Tcl_GetIndexFromObj(NULL, objv[1], tablePtr, "token", 0, &index);
-	indexRep = objv[1]->internalRep.otherValuePtr;
+	indexRep = objv[1]->internalRep.twoPtrValue.ptr1;
 	indexRep->index = index2;
 	result = Tcl_GetIndexFromObj(NULL, objv[1],
 		tablePtr, "token", 0, &index);
@@ -592,7 +592,7 @@ TestindexobjCmd(
 
     if (objv[3]->typePtr != NULL
 	    && !strcmp("index", objv[3]->typePtr->name)) {
-	indexRep = objv[3]->internalRep.otherValuePtr;
+	indexRep = objv[3]->internalRep.twoPtrValue.ptr1;
 	if (indexRep->tablePtr == (void *) argv) {
 	    TclFreeIntRep(objv[3]);
 	}
@@ -963,6 +963,17 @@ TestobjCmd(
 	}
 	SetVarToObj(varPtr, destIndex, varPtr[varIndex]);
 	Tcl_SetObjResult(interp, varPtr[destIndex]);
+    } else if (strcmp(subCmd, "bug3598580") == 0) {
+	Tcl_Obj *listObjPtr, *elemObjPtr;
+	if (objc != 2) {
+	    goto wrongNumArgs;
+	}
+	elemObjPtr = Tcl_NewIntObj(123);
+	listObjPtr = Tcl_NewListObj(1, &elemObjPtr);
+	/* Replace the single list element through itself, nonsense but legal. */
+	Tcl_ListObjReplace(interp, listObjPtr, 0, 1, 1, &elemObjPtr);
+	Tcl_SetObjResult(interp, listObjPtr);
+	return TCL_OK;
     } else if (strcmp(subCmd, "convert") == 0) {
 	const char *typeName;
 
@@ -1239,7 +1250,7 @@ TeststringobjCmd(
 	    if (varPtr[varIndex] != NULL) {
 		Tcl_ConvertToType(NULL, varPtr[varIndex],
 			Tcl_GetObjType("string"));
-		strPtr = varPtr[varIndex]->internalRep.otherValuePtr;
+		strPtr = varPtr[varIndex]->internalRep.twoPtrValue.ptr1;
 		length = (int) strPtr->allocated;
 	    } else {
 		length = -1;
@@ -1293,7 +1304,7 @@ TeststringobjCmd(
 	    if (varPtr[varIndex] != NULL) {
 		Tcl_ConvertToType(NULL, varPtr[varIndex],
 			Tcl_GetObjType("string"));
-		strPtr = varPtr[varIndex]->internalRep.otherValuePtr;
+		strPtr = varPtr[varIndex]->internalRep.twoPtrValue.ptr1;
 		length = strPtr->maxChars;
 	    } else {
 		length = -1;
diff --git a/generic/tclThread.c b/generic/tclThread.c
index d1f2691..198fa6a 100644
--- a/generic/tclThread.c
+++ b/generic/tclThread.c
@@ -339,8 +339,9 @@ Tcl_ConditionFinalize(
  *
  * TclFinalizeThreadData --
  *
- *	This function cleans up the thread-local storage. This is called once
- *	for each thread.
+ *	This function cleans up the thread-local storage. Secondary, it cleans
+ *	thread alloc cache.
+ *	This is called once for each thread before thread exits.
  *
  * Results:
  *	None.
@@ -352,9 +353,17 @@ Tcl_ConditionFinalize(
  */
 
 void
-TclFinalizeThreadData(void)
+TclFinalizeThreadData(int quick)
 {
     TclFinalizeThreadDataThread();
+#if defined(TCL_THREADS) && defined(USE_THREAD_ALLOC)
+    if (!quick) {
+	/*
+	 * Quick exit principle makes it useless to terminate allocators
+	 */
+	TclFinalizeThreadAllocThread();
+    }
+#endif
 }
 
 /*
diff --git a/generic/tclThreadAlloc.c b/generic/tclThreadAlloc.c
index e4261d6..3267a0d 100644
--- a/generic/tclThreadAlloc.c
+++ b/generic/tclThreadAlloc.c
@@ -84,6 +84,7 @@ typedef union Block {
 
 typedef struct Bucket {
     Block *firstPtr;		/* First block available */
+    Block *lastPtr;		/* End of block list */
     long numFree;		/* Number of blocks available */
 
     /* All fields below for accounting only */
@@ -107,6 +108,7 @@ typedef struct Cache {
     Tcl_ThreadId owner;		/* Which thread's cache is this? */
     Tcl_Obj *firstObjPtr;	/* List of free objects for thread */
     int numObjects;		/* Number of objects for thread */
+    Tcl_Obj *lastPtr;		/* Last object in this cache */
     int totalAssigned;		/* Total space assigned to thread */
     Bucket buckets[NBUCKETS];	/* The buckets for this thread */
 } Cache;
@@ -135,6 +137,7 @@ static int	GetBlocks(Cache *cachePtr, int bucket);
 static Block *	Ptr2Block(char *ptr);
 static char *	Block2Ptr(Block *blockPtr, int bucket, unsigned int reqSize);
 static void	MoveObjs(Cache *fromPtr, Cache *toPtr, int numMove);
+static void	PutObjs(Cache *fromPtr, int numMove);
 
 /*
  * Local variables defined in this file and initialized at startup.
@@ -217,10 +220,11 @@ GetCache(void)
 
     cachePtr = TclpGetAllocCache();
     if (cachePtr == NULL) {
-	cachePtr = calloc(1, sizeof(Cache));
+	cachePtr = TclpSysAlloc(sizeof(Cache), 0);
 	if (cachePtr == NULL) {
 	    Tcl_Panic("alloc: could not allocate new cache");
 	}
+        memset(cachePtr, 0, sizeof(Cache));
 	Tcl_MutexLock(listLockPtr);
 	cachePtr->nextPtr = firstCachePtr;
 	firstCachePtr = cachePtr;
@@ -270,9 +274,7 @@ TclFreeAllocCache(
      */
 
     if (cachePtr->numObjects > 0) {
-	Tcl_MutexLock(objLockPtr);
-	MoveObjs(cachePtr, sharedPtr, cachePtr->numObjects);
-	Tcl_MutexUnlock(objLockPtr);
+	PutObjs(cachePtr, cachePtr->numObjects);
     }
 
     /*
@@ -287,7 +289,7 @@ TclFreeAllocCache(
     *nextPtrPtr = cachePtr->nextPtr;
     cachePtr->nextPtr = NULL;
     Tcl_MutexUnlock(listLockPtr);
-    free(cachePtr);
+    TclpSysFree(cachePtr);
 }
 
 /*
@@ -332,7 +334,7 @@ TclpAlloc(
 
     /*
      * Increment the requested size to include room for the Block structure.
-     * Call malloc() directly if the required amount is greater than the
+     * Call TclpSysAlloc() directly if the required amount is greater than the
      * largest block, otherwise pop the smallest block large enough,
      * allocating more blocks if necessary.
      */
@@ -344,7 +346,7 @@ TclpAlloc(
 #endif
     if (size > MAXALLOC) {
 	bucket = NBUCKETS;
-	blockPtr = malloc(size);
+	blockPtr = TclpSysAlloc(size, 0);
 	if (blockPtr != NULL) {
 	    cachePtr->totalAssigned += reqSize;
 	}
@@ -407,13 +409,16 @@ TclpFree(
     bucket = blockPtr->sourceBucket;
     if (bucket == NBUCKETS) {
 	cachePtr->totalAssigned -= blockPtr->blockReqSize;
-	free(blockPtr);
+	TclpSysFree(blockPtr);
 	return;
     }
 
     cachePtr->buckets[bucket].totalAssigned -= blockPtr->blockReqSize;
     blockPtr->nextBlock = cachePtr->buckets[bucket].firstPtr;
     cachePtr->buckets[bucket].firstPtr = blockPtr;
+    if (cachePtr->buckets[bucket].numFree == 0) {
+	cachePtr->buckets[bucket].lastPtr = blockPtr;
+    }
     cachePtr->buckets[bucket].numFree++;
     cachePtr->buckets[bucket].numInserts++;
 
@@ -472,7 +477,7 @@ TclpRealloc(
     /*
      * If the block is not a system block and fits in place, simply return the
      * existing pointer. Otherwise, if the block is a system block and the new
-     * size would also require a system block, call realloc() directly.
+     * size would also require a system block, call TclpSysRealloc() directly.
      */
 
     blockPtr = Ptr2Block(ptr);
@@ -495,7 +500,7 @@ TclpRealloc(
     } else if (size > MAXALLOC) {
 	cachePtr->totalAssigned -= blockPtr->blockReqSize;
 	cachePtr->totalAssigned += reqSize;
-	blockPtr = realloc(blockPtr, size);
+	blockPtr = TclpSysRealloc(blockPtr, size);
 	if (blockPtr == NULL) {
 	    return NULL;
 	}
@@ -567,15 +572,17 @@ TclThreadAllocObj(void)
 	    Tcl_Obj *newObjsPtr;
 
 	    cachePtr->numObjects = numMove = NOBJALLOC;
-	    newObjsPtr = malloc(sizeof(Tcl_Obj) * numMove);
+	    newObjsPtr = TclpSysAlloc(sizeof(Tcl_Obj) * numMove, 0);
 	    if (newObjsPtr == NULL) {
 		Tcl_Panic("alloc: could not allocate %d new objects", numMove);
 	    }
+	    cachePtr->lastPtr = newObjsPtr + numMove - 1;
+	    objPtr = cachePtr->firstObjPtr;	/* NULL */
 	    while (--numMove >= 0) {
-		objPtr = &newObjsPtr[numMove];
-		objPtr->internalRep.otherValuePtr = cachePtr->firstObjPtr;
-		cachePtr->firstObjPtr = objPtr;
+		newObjsPtr[numMove].internalRep.twoPtrValue.ptr1 = objPtr;
+		objPtr = newObjsPtr + numMove;
 	    }
+	    cachePtr->firstObjPtr = newObjsPtr;
 	}
     }
 
@@ -584,7 +591,7 @@ TclThreadAllocObj(void)
      */
 
     objPtr = cachePtr->firstObjPtr;
-    cachePtr->firstObjPtr = objPtr->internalRep.otherValuePtr;
+    cachePtr->firstObjPtr = objPtr->internalRep.twoPtrValue.ptr1;
     cachePtr->numObjects--;
     return objPtr;
 }
@@ -621,8 +628,11 @@ TclThreadFreeObj(
      * Get this thread's list and push on the free Tcl_Obj.
      */
 
-    objPtr->internalRep.otherValuePtr = cachePtr->firstObjPtr;
+    objPtr->internalRep.twoPtrValue.ptr1 = cachePtr->firstObjPtr;
     cachePtr->firstObjPtr = objPtr;
+    if (cachePtr->numObjects == 0) {
+	cachePtr->lastPtr = objPtr;
+    }
     cachePtr->numObjects++;
 
     /*
@@ -631,9 +641,7 @@ TclThreadFreeObj(
      */
 
     if (cachePtr->numObjects > NOBJHIGH) {
-	Tcl_MutexLock(objLockPtr);
-	MoveObjs(cachePtr, sharedPtr, NOBJALLOC);
-	Tcl_MutexUnlock(objLockPtr);
+	PutObjs(cachePtr, NOBJALLOC);
     }
 }
 
@@ -722,22 +730,76 @@ MoveObjs(
      */
 
     while (--numMove) {
-	objPtr = objPtr->internalRep.otherValuePtr;
+	objPtr = objPtr->internalRep.twoPtrValue.ptr1;
     }
-    fromPtr->firstObjPtr = objPtr->internalRep.otherValuePtr;
+    fromPtr->firstObjPtr = objPtr->internalRep.twoPtrValue.ptr1;
 
     /*
      * Move all objects as a block - they are already linked to each other, we
      * just have to update the first and last.
      */
 
-    objPtr->internalRep.otherValuePtr = toPtr->firstObjPtr;
+    toPtr->lastPtr = objPtr;
+    objPtr->internalRep.twoPtrValue.ptr1 = toPtr->firstObjPtr; /* NULL */
     toPtr->firstObjPtr = fromFirstObjPtr;
 }
 
 /*
  *----------------------------------------------------------------------
  *
+ * PutObjs --
+ *
+ *	Move Tcl_Obj's from thread cache to shared cache.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+PutObjs(
+    Cache *fromPtr,
+    int numMove)
+{
+    int keep = fromPtr->numObjects - numMove;
+    Tcl_Obj *firstPtr, *lastPtr = NULL;
+
+    fromPtr->numObjects = keep;
+    firstPtr = fromPtr->firstObjPtr;
+    if (keep == 0) {
+	fromPtr->firstObjPtr = NULL;
+    } else {
+	do {
+	    lastPtr = firstPtr;
+	    firstPtr = firstPtr->internalRep.twoPtrValue.ptr1;
+	} while (--keep > 0);
+	lastPtr->internalRep.twoPtrValue.ptr1 = NULL;
+    }
+
+    /*
+     * Move all objects as a block - they are already linked to each other, we
+     * just have to update the first and last.
+     */
+
+    Tcl_MutexLock(objLockPtr);
+    fromPtr->lastPtr->internalRep.twoPtrValue.ptr1 = sharedPtr->firstObjPtr;
+    sharedPtr->firstObjPtr = firstPtr;
+    if (sharedPtr->numObjects == 0) {
+	sharedPtr->lastPtr = fromPtr->lastPtr;
+    }
+    sharedPtr->numObjects += numMove;
+    Tcl_MutexUnlock(objLockPtr);
+
+    fromPtr->lastPtr = lastPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * Block2Ptr, Ptr2Block --
  *
  *	Convert between internal blocks and user pointers.
@@ -847,20 +909,25 @@ PutBlocks(
     int bucket,
     int numMove)
 {
-    register Block *lastPtr, *firstPtr;
-    register int n = numMove;
-
     /*
-     * Before acquiring the lock, walk the block list to find the last block
-     * to be moved.
+     * We have numFree.  Want to shed numMove. So compute how many
+     * Blocks to keep.
      */
 
-    firstPtr = lastPtr = cachePtr->buckets[bucket].firstPtr;
-    while (--n > 0) {
-	lastPtr = lastPtr->nextBlock;
+    int keep = cachePtr->buckets[bucket].numFree - numMove;
+    Block *lastPtr = NULL, *firstPtr;
+
+    cachePtr->buckets[bucket].numFree = keep;
+    firstPtr = cachePtr->buckets[bucket].firstPtr;
+    if (keep == 0) {
+	cachePtr->buckets[bucket].firstPtr = NULL;
+    } else {
+	do {
+	    lastPtr = firstPtr;
+	    firstPtr = firstPtr->nextBlock;
+	} while (--keep > 0);
+	lastPtr->nextBlock = NULL;
     }
-    cachePtr->buckets[bucket].firstPtr = lastPtr->nextBlock;
-    cachePtr->buckets[bucket].numFree -= numMove;
 
     /*
      * Aquire the lock and place the list of blocks at the front of the shared
@@ -868,10 +935,17 @@ PutBlocks(
      */
 
     LockBucket(cachePtr, bucket);
-    lastPtr->nextBlock = sharedPtr->buckets[bucket].firstPtr;
+    cachePtr->buckets[bucket].lastPtr->nextBlock
+	    = sharedPtr->buckets[bucket].firstPtr;
     sharedPtr->buckets[bucket].firstPtr = firstPtr;
+    if (sharedPtr->buckets[bucket].numFree == 0) {
+	sharedPtr->buckets[bucket].lastPtr
+		= cachePtr->buckets[bucket].lastPtr;
+    }
     sharedPtr->buckets[bucket].numFree += numMove;
     UnlockBucket(cachePtr, bucket);
+
+    cachePtr->buckets[bucket].lastPtr = lastPtr;
 }
 
 /*
@@ -918,6 +992,8 @@ GetBlocks(
 	    if (n >= sharedPtr->buckets[bucket].numFree) {
 		cachePtr->buckets[bucket].firstPtr =
 			sharedPtr->buckets[bucket].firstPtr;
+		cachePtr->buckets[bucket].lastPtr =
+			sharedPtr->buckets[bucket].lastPtr;
 		cachePtr->buckets[bucket].numFree =
 			sharedPtr->buckets[bucket].numFree;
 		sharedPtr->buckets[bucket].firstPtr = NULL;
@@ -931,6 +1007,7 @@ GetBlocks(
 		    blockPtr = blockPtr->nextBlock;
 		}
 		sharedPtr->buckets[bucket].firstPtr = blockPtr->nextBlock;
+		cachePtr->buckets[bucket].lastPtr = blockPtr;
 		blockPtr->nextBlock = NULL;
 	    }
 	}
@@ -964,7 +1041,7 @@ GetBlocks(
 
 	if (blockPtr == NULL) {
 	    size = MAXALLOC;
-	    blockPtr = malloc(size);
+	    blockPtr = TclpSysAlloc(size, 0);
 	    if (blockPtr == NULL) {
 		return 0;
 	    }
@@ -982,6 +1059,7 @@ GetBlocks(
 		((char *) blockPtr + bucketInfo[bucket].blockSize);
 	    blockPtr = blockPtr->nextBlock;
 	}
+	cachePtr->buckets[bucket].lastPtr = blockPtr;
 	blockPtr->nextBlock = NULL;
     }
     return 1;
@@ -1023,6 +1101,33 @@ TclFinalizeThreadAlloc(void)
     TclpFreeAllocCache(NULL);
 }
 
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclFinalizeThreadAllocThread --
+ *
+ *	This procedure is used to destroy single thread private resources used
+ *	in this file. 
+ * Called in TclpFinalizeThreadData when a thread exits (Tcl_FinalizeThread).
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclFinalizeThreadAllocThread(void)
+{
+    Cache *cachePtr = TclpGetAllocCache();
+    if (cachePtr != NULL) {
+	TclpFreeAllocCache(cachePtr);
+    }
+}
+
 #else /* !(TCL_THREADS && USE_THREAD_ALLOC) */
 /*
  *----------------------------------------------------------------------
diff --git a/generic/tclThreadJoin.c b/generic/tclThreadJoin.c
index 4b09e1c..5c70a62 100644
--- a/generic/tclThreadJoin.c
+++ b/generic/tclThreadJoin.c
@@ -14,7 +14,7 @@
 
 #include "tclInt.h"
 
-#ifdef WIN32
+#ifdef _WIN32
 
 /*
  * The information about each joinable thread is remembered in a structure as
@@ -305,7 +305,7 @@ TclSignalExitThread(
 
     Tcl_MutexUnlock(&threadPtr->threadMutex);
 }
-#endif /* WIN32 */
+#endif /* _WIN32 */
 
 /*
  * Local Variables:
diff --git a/generic/tclThreadTest.c b/generic/tclThreadTest.c
index 22b5995..02ee038 100644
--- a/generic/tclThreadTest.c
+++ b/generic/tclThreadTest.c
@@ -337,7 +337,7 @@ ThreadObjCmd(
 	     */
 
 	    if (objc == 2) {
-		idObj = Tcl_NewLongObj((long)(size_t)Tcl_GetCurrentThread());
+		idObj = Tcl_NewWideIntObj((Tcl_WideInt)(size_t)Tcl_GetCurrentThread());
 	    } else if (objc == 3
 		    && strcmp("-main", Tcl_GetString(objv[2])) == 0) {
 		Tcl_MutexLock(&threadMutex);
@@ -355,14 +355,14 @@ ThreadObjCmd(
 	    return TCL_ERROR;
 	}
     case THREAD_JOIN: {
-	long id;
+	Tcl_WideInt id;
 	int result, status;
 
 	if (objc != 3) {
 	    Tcl_WrongNumArgs(interp, 2, objv, "id");
 	    return TCL_ERROR;
 	}
-	if (Tcl_GetLongFromObj(interp, objv[2], &id) != TCL_OK) {
+	if (Tcl_GetWideIntFromObj(interp, objv[2], &id) != TCL_OK) {
 	    return TCL_ERROR;
 	}
 
@@ -372,7 +372,7 @@ ThreadObjCmd(
 	} else {
 	    char buf[20];
 
-	    TclFormatInt(buf, id);
+	    sprintf(buf, "%" TCL_LL_MODIFIER "d", id);
 	    Tcl_AppendResult(interp, "cannot join thread ", buf, NULL);
 	}
 	return result;
@@ -384,7 +384,7 @@ ThreadObjCmd(
 	}
 	return ThreadList(interp);
     case THREAD_SEND: {
-	long id;
+	Tcl_WideInt id;
 	const char *script;
 	int wait, arg;
 
@@ -403,7 +403,7 @@ ThreadObjCmd(
 	    wait = 1;
 	    arg = 2;
 	}
-	if (Tcl_GetLongFromObj(interp, objv[arg], &id) != TCL_OK) {
+	if (Tcl_GetWideIntFromObj(interp, objv[arg], &id) != TCL_OK) {
 	    return TCL_ERROR;
 	}
 	arg++;
@@ -513,7 +513,6 @@ ThreadCreate(
 	    TCL_THREAD_STACK_DEFAULT, joinable) != TCL_OK) {
 	Tcl_MutexUnlock(&threadMutex);
 	Tcl_AppendResult(interp, "can't create a new thread", NULL);
-	ckfree(ctrl.script);
 	return TCL_ERROR;
     }
 
@@ -524,7 +523,7 @@ ThreadCreate(
     Tcl_ConditionWait(&ctrl.condWait, &threadMutex, NULL);
     Tcl_MutexUnlock(&threadMutex);
     Tcl_ConditionFinalize(&ctrl.condWait);
-    Tcl_SetObjResult(interp, Tcl_NewLongObj((long)(size_t)id));
+    Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt)(size_t)id));
     return TCL_OK;
 }
 
@@ -656,7 +655,7 @@ ThreadErrorProc(
     char *script;
     char buf[TCL_DOUBLE_SPACE+1];
 
-    TclFormatInt(buf, (size_t) Tcl_GetCurrentThread());
+    sprintf(buf, "%" TCL_LL_MODIFIER "d", (Tcl_WideInt)(size_t)Tcl_GetCurrentThread());
 
     errorInfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY);
     if (errorProcString == NULL) {
@@ -774,7 +773,7 @@ ThreadList(
     Tcl_MutexLock(&threadMutex);
     for (tsdPtr = threadList ; tsdPtr ; tsdPtr = tsdPtr->nextPtr) {
 	Tcl_ListObjAppendElement(interp, listPtr,
-		Tcl_NewLongObj((long)(size_t)tsdPtr->threadId));
+		Tcl_NewWideIntObj((Tcl_WideInt)(size_t)tsdPtr->threadId));
     }
     Tcl_MutexUnlock(&threadMutex);
     Tcl_SetObjResult(interp, listPtr);
@@ -927,10 +926,11 @@ ThreadSend(
 	    ckfree(resultPtr->errorInfo);
 	}
     }
-    Tcl_SetResult(interp, resultPtr->result, TCL_DYNAMIC);
+    Tcl_AppendResult(interp, resultPtr->result, NULL);
     Tcl_ConditionFinalize(&resultPtr->done);
     code = resultPtr->code;
 
+    ckfree(resultPtr->result);
     ckfree(resultPtr);
 
     return code;
diff --git a/generic/tclTimer.c b/generic/tclTimer.c
index 6b17825..c10986a 100644
--- a/generic/tclTimer.c
+++ b/generic/tclTimer.c
@@ -819,7 +819,7 @@ Tcl_AfterObjCmd(
      */
 
     if (objv[1]->typePtr == &tclIntType
-#ifndef NO_WIDE_TYPE
+#ifndef TCL_WIDE_INT_IS_LONG
 	    || objv[1]->typePtr == &tclWideIntType
 #endif
 	    || objv[1]->typePtr == &tclBignumType
diff --git a/generic/tclTomMathDecls.h b/generic/tclTomMathDecls.h
index 4f6c3bf..69b095c 100644
--- a/generic/tclTomMathDecls.h
+++ b/generic/tclTomMathDecls.h
@@ -134,6 +134,10 @@
 
 /* !BEGIN!: Do not edit below this line. */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * Exported function declarations:
  */
@@ -278,7 +282,7 @@ EXTERN int		TclBN_mp_cnt_lsb(const mp_int *a);
 
 typedef struct TclTomMathStubs {
     int magic;
-    const struct TclTomMathStubHooks *hooks;
+    void *hooks;
 
     int (*tclBN_epoch) (void); /* 0 */
     int (*tclBN_revision) (void); /* 1 */
@@ -346,10 +350,8 @@ typedef struct TclTomMathStubs {
     int (*tclBN_mp_cnt_lsb) (const mp_int *a); /* 63 */
 } TclTomMathStubs;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 extern const TclTomMathStubs *tclTomMathStubsPtr;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/generic/tclTomMathInterface.c b/generic/tclTomMathInterface.c
index 775e86b..48db8c3 100644
--- a/generic/tclTomMathInterface.c
+++ b/generic/tclTomMathInterface.c
@@ -111,7 +111,7 @@ extern void *
 TclBNAlloc(
     size_t x)
 {
-    return (void *) Tcl_Alloc((unsigned int) x);
+    return (void *) ckalloc((unsigned int) x);
 }
 
 /*
@@ -135,7 +135,7 @@ TclBNRealloc(
     void *p,
     size_t s)
 {
-    return (void *) Tcl_Realloc((char *) p, (unsigned int) s);
+    return (void *) ckrealloc((char *) p, (unsigned int) s);
 }
 
 /*
@@ -161,7 +161,7 @@ extern void
 TclBNFree(
     void *p)
 {
-    Tcl_Free((char *) p);
+    ckree((char *) p);
 }
 #endif
 
diff --git a/generic/tclTomMathStubLib.c b/generic/tclTomMathStubLib.c
index a3bc4b3..324f2a3 100644
--- a/generic/tclTomMathStubLib.c
+++ b/generic/tclTomMathStubLib.c
@@ -11,15 +11,6 @@
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  */
 
-/*
- * We need to ensure that we use the stub macros so that this file contains no
- * references to any of the stub functions. This will make it possible to
- * build an extension that references Tcl_InitStubs but doesn't end up
- * including the rest of the stub functions.
- */
-
-#define USE_TCL_STUBS
-
 #include "tclInt.h"
 
 MODULE_SCOPE const TclTomMathStubs *tclTomMathStubsPtr;
@@ -55,31 +46,30 @@ TclTomMathInitializeStubs(
     int exact = 0;
     const char *packageName = "tcl::tommath";
     const char *errMsg = NULL;
-    ClientData pkgClientData = NULL;
-    const char *actualVersion =
-	Tcl_PkgRequireEx(interp, packageName, version, exact, &pkgClientData);
-    const TclTomMathStubs *stubsPtr = pkgClientData;
+    TclTomMathStubs *stubsPtr = NULL;
+    const char *actualVersion = tclStubsPtr->tcl_PkgRequireEx(interp,
+	    packageName, version, exact, &stubsPtr);
 
     if (actualVersion == NULL) {
 	return NULL;
     }
-    if (pkgClientData == NULL) {
+    if (stubsPtr == NULL) {
 	errMsg = "missing stub table pointer";
-    } else if ((stubsPtr->tclBN_epoch)() != epoch) {
+    } else if(stubsPtr->tclBN_epoch() != epoch) {
 	errMsg = "epoch number mismatch";
-    } else if ((stubsPtr->tclBN_revision)() != revision) {
+    } else if(stubsPtr->tclBN_revision() != revision) {
 	errMsg = "requires a later revision";
     } else {
 	tclTomMathStubsPtr = stubsPtr;
 	return actualVersion;
     }
-
-    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-	    "error loading %s (requested version %s, actual version %s): %s",
-	    packageName, version, actualVersion, errMsg));
+    tclStubsPtr->tcl_ResetResult(interp);
+    tclStubsPtr->tcl_AppendResult(interp, "Error loading ", packageName,
+	    " (requested version ", version, ", actual version ",
+	    actualVersion, "): ", errMsg, NULL);
     return NULL;
 }
-
+
 /*
  * Local Variables:
  * mode: c
diff --git a/generic/tclTrace.c b/generic/tclTrace.c
index 519f201..6184a89 100644
--- a/generic/tclTrace.c
+++ b/generic/tclTrace.c
@@ -155,8 +155,8 @@ typedef struct StringTraceData {
 
 #define FOREACH_VAR_TRACE(interp, name, clientData) \
     (clientData) = NULL; \
-    while (((clientData) = Tcl_VarTraceInfo((interp), (name), 0, \
-	    TraceVarProc, (clientData))) != NULL)
+    while (((clientData) = Tcl_VarTraceInfo2((interp), (name), NULL, \
+	    0, TraceVarProc, (clientData))) != NULL)
 
 #define FOREACH_COMMAND_TRACE(interp, name, clientData) \
     (clientData) = NULL; \
@@ -1322,7 +1322,7 @@ TraceCommandProc(
 		Tcl_DStringLength(&cmd), 0);
 	if (code != TCL_OK) {
 	    /* We ignore errors in these traced commands */
-	    /*** QUESTION: Use Tcl_BackgroundError(interp); instead? ***/
+	    /*** QUESTION: Use Tcl_BackgroundException(interp, code); instead? ***/
 	}
 	Tcl_DStringFree(&cmd);
     }
@@ -1485,7 +1485,11 @@ TclCheckExecutionTraces(
     }
     iPtr->activeCmdTracePtr = active.nextPtr;
     if (state) {
-	Tcl_RestoreInterpState(interp, state);
+	if (traceCode == TCL_OK) {
+	    (void) Tcl_RestoreInterpState(interp, state);
+	} else {
+	    Tcl_DiscardInterpState(state);
+	}
     }
 
     return traceCode;
@@ -2507,6 +2511,9 @@ TclObjCallVarTraces(
     if (!part1Ptr) {
 	part1Ptr = localName(iPtr->varFramePtr, index);
     }
+    if (!part1Ptr) {
+	Tcl_Panic("Cannot trace a variable with no name");
+    }
     part1 = TclGetString(part1Ptr);
     part2 = part2Ptr? TclGetString(part2Ptr) : NULL;
 
@@ -2811,6 +2818,7 @@ DisposeTraceResult(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_UntraceVar
 void
 Tcl_UntraceVar(
     Tcl_Interp *interp,		/* Interpreter containing variable. */
@@ -2979,6 +2987,7 @@ Tcl_UntraceVar2(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_VarTraceInfo
 ClientData
 Tcl_VarTraceInfo(
     Tcl_Interp *interp,		/* Interpreter containing variable. */
@@ -3087,6 +3096,7 @@ Tcl_VarTraceInfo2(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_TraceVar
 int
 Tcl_TraceVar(
     Tcl_Interp *interp,		/* Interpreter in which variable is to be
diff --git a/generic/tclUniData.c b/generic/tclUniData.c
index 5c88639..78e7d17 100644
--- a/generic/tclUniData.c
+++ b/generic/tclUniData.c
@@ -30,35 +30,35 @@ static const unsigned short pageMap[] = {
     1120, 1152, 1184, 1216, 1248, 1280, 1312, 1344, 1376, 1408, 1344, 1344,
     1440, 1472, 1504, 1536, 1568, 1344, 1344, 1600, 1632, 1664, 1696, 1728,
     1760, 1792, 1792, 1824, 1792, 1856, 1888, 1920, 1952, 1984, 2016, 2048,
-    2080, 2112, 2144, 2176, 2208, 2240, 2272, 2304, 2336, 2368, 2016, 2400,
-    2432, 2464, 2496, 2528, 2560, 2592, 2624, 2656, 2688, 2720, 2752, 2784,
-    2816, 2848, 2752, 2880, 2912, 2944, 2976, 3008, 3040, 3072, 3104, 3136,
-    3168, 1792, 3200, 3232, 3264, 1792, 3296, 3328, 3360, 3392, 3424, 3456,
-    3488, 1792, 1344, 3520, 3552, 3584, 3616, 3648, 3680, 3712, 1344, 1344,
-    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 3744, 1344, 3776, 3808,
-    3840, 1344, 3872, 1344, 3904, 3936, 3968, 1344, 1344, 4000, 4032, 1344,
+    2080, 2112, 2144, 2176, 2208, 2240, 2272, 2304, 2336, 2368, 2400, 2432,
+    2464, 2496, 2528, 2560, 2592, 2624, 2656, 2688, 2720, 2752, 2784, 2816,
+    2848, 2880, 2784, 2912, 2944, 2976, 3008, 3040, 3072, 3104, 3136, 3168,
+    3200, 1792, 3232, 3264, 3296, 1792, 3328, 3360, 3392, 3424, 3456, 3488,
+    3520, 1792, 1344, 3552, 3584, 3616, 3648, 3680, 3712, 3744, 1344, 1344,
+    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 3776, 1344, 3808, 3840,
+    3872, 1344, 3904, 1344, 3936, 3968, 4000, 1344, 1344, 4032, 4064, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 1344, 1344, 1344, 4064, 4096, 1344, 1344, 4128, 4160, 4192,
-    4224, 4256, 1344, 4288, 4320, 4352, 4384, 1344, 4416, 4448, 1344, 4480,
-    1344, 4512, 4544, 4576, 4608, 4640, 1344, 4672, 4704, 4736, 4768, 1344,
-    4800, 4832, 4864, 4896, 1792, 1792, 4928, 4960, 4992, 5024, 5056, 5088,
-    1344, 5120, 1344, 5152, 5184, 5216, 1792, 1792, 5248, 5280, 5312, 5344,
-    5376, 5408, 5440, 5376, 704, 5472, 224, 224, 224, 224, 5504, 224, 224,
-    224, 5536, 5568, 5600, 5632, 5664, 5696, 5728, 5760, 5792, 5824, 5856,
-    5888, 5920, 5952, 5984, 6016, 6048, 6080, 6112, 6144, 6176, 6208, 6240,
-    6272, 6304, 6304, 6304, 6304, 6304, 6304, 6304, 6304, 6336, 6368, 4736,
-    6400, 6432, 6464, 6496, 6528, 4736, 6560, 6592, 6624, 6656, 6688, 6720,
-    6752, 4736, 4736, 4736, 4736, 4736, 6784, 6816, 6848, 4736, 4736, 4736,
-    6880, 4736, 4736, 4736, 4736, 6912, 4736, 4736, 6944, 6976, 4736, 7008,
-    7040, 4736, 4736, 4736, 4736, 4736, 4736, 4736, 4736, 6304, 6304, 6304,
-    6304, 7072, 6304, 7104, 7136, 6304, 6304, 6304, 6304, 6304, 6304, 6304,
-    6304, 4736, 7168, 7200, 1792, 1792, 1792, 1792, 1792, 7232, 7264, 7296,
-    7328, 224, 224, 224, 7360, 7392, 7424, 1344, 7456, 7488, 7520, 7520,
-    704, 7552, 7584, 1792, 1792, 7616, 4736, 4736, 7648, 4736, 4736, 4736,
-    4736, 4736, 4736, 7680, 7712, 7744, 7776, 3104, 1344, 7808, 4032, 1344,
-    7840, 7872, 7904, 1344, 1344, 7936, 7968, 4736, 8000, 8032, 8064, 8096,
-    4736, 8064, 8128, 4736, 8032, 4736, 4736, 4736, 4736, 4736, 4736, 4736,
-    4736, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 1344, 1344, 1344, 1344, 4096, 4128, 1344, 1344, 4160, 4192, 4224,
+    4256, 4288, 1344, 4320, 4352, 4384, 4416, 1344, 4448, 4480, 1344, 4512,
+    1344, 4544, 4576, 4608, 4640, 4672, 1344, 4704, 4736, 4768, 4800, 1344,
+    4832, 4864, 4896, 4928, 1792, 1792, 4960, 4992, 5024, 5056, 5088, 5120,
+    1344, 5152, 1344, 5184, 5216, 5248, 1792, 1792, 5280, 5312, 5344, 5376,
+    5408, 5440, 5472, 5408, 704, 5504, 224, 224, 224, 224, 5536, 224, 224,
+    224, 5568, 5600, 5632, 5664, 5696, 5728, 5760, 5792, 5824, 5856, 5888,
+    5920, 5952, 5984, 6016, 6048, 6080, 6112, 6144, 6176, 6208, 6240, 6272,
+    6304, 6336, 6336, 6336, 6336, 6336, 6336, 6336, 6336, 6368, 6400, 4768,
+    6432, 6464, 6496, 6528, 6560, 4768, 6592, 6624, 6656, 6688, 6720, 6752,
+    6784, 4768, 4768, 4768, 4768, 4768, 6816, 6848, 6880, 4768, 4768, 4768,
+    6912, 4768, 4768, 4768, 4768, 4768, 4768, 4768, 6944, 6976, 4768, 7008,
+    7040, 4768, 4768, 4768, 4768, 4768, 4768, 4768, 4768, 6336, 6336, 6336,
+    6336, 7072, 6336, 7104, 7136, 6336, 6336, 6336, 6336, 6336, 6336, 6336,
+    6336, 4768, 7168, 7200, 7232, 7264, 7296, 7328, 1792, 7360, 7392, 7424,
+    7456, 224, 224, 224, 7488, 7520, 7552, 1344, 7584, 7616, 7648, 7648,
+    704, 7680, 7712, 7744, 1792, 7776, 4768, 4768, 7808, 4768, 4768, 4768,
+    4768, 4768, 4768, 7840, 7872, 7904, 7936, 3136, 1344, 7968, 4064, 1344,
+    8000, 8032, 8064, 1344, 1344, 8096, 8128, 4768, 8160, 8192, 8224, 8256,
+    4768, 8224, 8288, 4768, 8192, 4768, 4768, 4768, 4768, 4768, 4768, 4768,
+    4768, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
@@ -75,7 +75,7 @@ static const unsigned short pageMap[] = {
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 4512, 4736, 4736, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 1344, 4544, 4768, 4768, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
@@ -129,16 +129,16 @@ static const unsigned short pageMap[] = {
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 8160,
-    1792, 8192, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 8320,
+    1792, 8352, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 8224, 4736, 8256, 5216, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 8288, 8320, 224, 8352, 8384, 1344, 1344, 8416, 8448, 8480, 224,
-    8512, 8544, 8576, 1792, 8608, 8640, 8672, 1344, 8704, 8736, 8768, 8800,
-    8832, 1632, 8864, 8896, 4544, 1888, 8928, 8960, 1792, 1344, 8992, 9024,
-    9056, 1344, 9088, 9120, 9152, 9184, 9216, 1792, 1792, 1792, 1792, 1344,
-    9248, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 8384, 4768, 8416, 5248, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 8448, 8480, 224, 8512, 8544, 1344, 1344, 8576, 8608, 8640, 224,
+    8672, 8704, 8736, 1792, 8768, 8800, 8832, 1344, 8864, 8896, 8928, 8960,
+    8992, 1632, 9024, 9056, 9088, 1888, 9120, 9152, 9184, 1344, 9216, 9248,
+    9280, 1344, 9312, 9344, 9376, 9408, 9440, 9472, 9504, 1792, 1792, 1344,
+    9536, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
@@ -167,73 +167,72 @@ static const unsigned short pageMap[] = {
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 9280, 9312, 9344, 9376, 9376, 9376, 9376, 9376, 9376, 9376,
-    9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376,
-    9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376,
-    9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376,
-    9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376,
-    9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9376, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408, 9408,
-    9408, 9408, 9408, 9408, 9408, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 1344, 1344, 9440, 1344, 1344, 9472, 1792, 9504, 9536, 9568,
-    1344, 1344, 9600, 9632, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 9664, 9696, 1344, 9728, 1344, 9760, 9792, 9824, 9856, 9888,
-    9920, 1344, 1344, 1344, 9952, 9984, 64, 10016, 10048, 10080, 10112,
-    10144, 10176
+    1344, 1344, 9568, 9600, 9632, 9664, 9664, 9664, 9664, 9664, 9664, 9664,
+    9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664,
+    9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664,
+    9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664,
+    9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664,
+    9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9664, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696, 9696,
+    9696, 9696, 9696, 9696, 9696, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 1344, 1344, 1344, 9728, 1344, 1344, 9760, 1792, 9792, 9824, 9856,
+    1344, 1344, 9888, 9920, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 1344, 9952, 9984, 1344, 10016, 1344, 10048, 10080, 10112, 10144,
+    10176, 10208, 1344, 1344, 1344, 10240, 10272, 64, 10304, 10336, 10368,
+    4576, 10400, 10432
 #if TCL_UTF_MAX > 3
-    ,10208, 10240, 10272, 1792, 1344, 1344, 1344, 7968, 10304, 10336, 10368,
-    10400, 10432, 1792, 10464, 10496, 1792, 1792, 1792, 1792, 4544, 1344,
-    10528, 1792, 10112, 10560, 10592, 1792, 10624, 1344, 10656, 1792, 10688,
-    10720, 10752, 1344, 10784, 10816, 1792, 1792, 1792, 1792, 1792, 1792,
+    ,10464, 10496, 10528, 1792, 1344, 1344, 1344, 8128, 10560, 10592, 10624,
+    10656, 10688, 10720, 10752, 10784, 1792, 1792, 1792, 1792, 9088, 1344,
+    10816, 10848, 1344, 10880, 10912, 10944, 10976, 1344, 11008, 1792,
+    11040, 11072, 11104, 1344, 11136, 11168, 1792, 1792, 1344, 11200, 1344,
+    11232, 1792, 1792, 1792, 1792, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 1344, 1344, 7616, 4544, 10048, 1792, 1792, 1792, 1792, 11264,
+    11296, 11328, 11360, 4576, 11392, 1792, 1792, 11424, 11456, 1792, 1792,
+    1344, 11488, 1792, 1792, 11520, 11552, 11584, 11616, 11648, 1792, 11680,
+    11712, 1344, 11744, 11776, 11808, 11840, 11872, 1792, 1792, 1344, 1344,
+    11904, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1792, 1792, 1792, 1792, 1792, 1792, 11936, 1792, 1792, 1792, 1792,
+    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 11968, 12000, 12032,
+    12064, 5088, 12096, 12128, 12160, 12192, 12224, 12256, 12288, 5088,
+    12320, 12352, 12384, 12416, 12448, 1792, 1792, 1792, 9984, 12480, 12512,
+    2400, 2304, 12544, 12576, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1792, 1344, 12608, 12640, 1792, 1792, 1792, 1792, 1792, 1344, 12672,
+    12704, 1792, 1344, 12736, 12768, 1792, 1344, 12800, 11168, 1792, 1792,
+    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    12832, 12864, 12896, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1792, 1792, 1792, 1792, 1792, 1792, 1344, 12928, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 10848, 10880, 10912,
-    1792, 1792, 1792, 1792, 1792, 10944, 10976, 1792, 1792, 1344, 11008,
-    1792, 1792, 11040, 11072, 11104, 11136, 1792, 1792, 1792, 1792, 1344,
-    11168, 11200, 11232, 1792, 1792, 1792, 1792, 1344, 1344, 11264, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 11296, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 11328, 11360, 11392, 11424, 5056, 11456,
-    11488, 11520, 11552, 11584, 11616, 1792, 5056, 11648, 11680, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1344, 11712, 10816, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1792, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 11744, 1792, 1792,
-    1792, 1792, 10368, 10368, 10368, 11776, 1792, 1792, 1792, 1792, 1792,
+    1344, 1344, 1344, 1344, 1344, 12928, 1792, 1792, 1792, 10624, 10624,
+    10624, 12960, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    11744, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 12992, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
@@ -266,16 +265,14 @@ static const unsigned short pageMap[] = {
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1344, 1344, 1344, 1344,
-    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 11808, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1344, 1344, 11840, 11872, 11904, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1792, 1792, 1792, 1792, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 12928, 4576,
+    13024, 1792, 1792, 9984, 13056, 1344, 13088, 13120, 13152, 13184, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1792, 1792, 1344, 1344, 13216, 13248, 13280, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
@@ -314,11 +311,11 @@ static const unsigned short pageMap[] = {
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 11936,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1792, 1792, 1792, 1792, 1792, 1792, 1792, 13312, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
@@ -326,6 +323,8 @@ static const unsigned short pageMap[] = {
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1344, 1344, 1344, 13344,
+    13376, 13408, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
@@ -336,15 +335,15 @@ static const unsigned short pageMap[] = {
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 4736, 4736, 4736, 4736, 4736, 4736, 4736, 7680, 4736,
-    11968, 4736, 12000, 12032, 12064, 12096, 1792, 4736, 4736, 12128, 1792,
-    1792, 1792, 1792, 1792, 4736, 4736, 12160, 12192, 1792, 1792, 1792,
-    1792, 12224, 12256, 12288, 12320, 12352, 12384, 12416, 12448, 12480,
-    12512, 12544, 12576, 12608, 12224, 12256, 12640, 12320, 12672, 12704,
-    12736, 12448, 12768, 12800, 12832, 12864, 12896, 12928, 12960, 12992,
-    13024, 13056, 13088, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1792, 4768, 4768, 4768, 4768, 4768, 4768, 4768, 7840, 4768, 13440,
+    4768, 13472, 13504, 13536, 13568, 1792, 4768, 4768, 13600, 1792, 1792,
+    1792, 1792, 1792, 4768, 4768, 13632, 13664, 1792, 1792, 1792, 1792,
+    13696, 13728, 13760, 13792, 13824, 13856, 13888, 13920, 13952, 13984,
+    14016, 14048, 14080, 13696, 13728, 14112, 13792, 14144, 14176, 14208,
+    13920, 14240, 14272, 14304, 14336, 14368, 14400, 14432, 14464, 14496,
+    14528, 14560, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
@@ -354,23 +353,24 @@ static const unsigned short pageMap[] = {
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
+    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1344,
+    1344, 1344, 1344, 1344, 1344, 14592, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    13120, 13152, 13184, 13216, 13248, 13280, 1792, 13312, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 4736, 13344, 4736, 4736, 7648,
-    13376, 13408, 1792, 13440, 13472, 4736, 13344, 13504, 1792, 1792, 13536,
-    13568, 13504, 13600, 1792, 1792, 1792, 1792, 1792, 4736, 13632, 4736,
-    13664, 7648, 4736, 13696, 13728, 4736, 8032, 13760, 4736, 4736, 4736,
-    4736, 13792, 4736, 12096, 13824, 13856, 1792, 1792, 1792, 13888, 4736,
-    4736, 13920, 1792, 4736, 4736, 13952, 1792, 4736, 4736, 4736, 7648,
+    14624, 14656, 14688, 14720, 14752, 14784, 1792, 14816, 1792, 1792,
+    1792, 1792, 1792, 1792, 1792, 1792, 4768, 14848, 4768, 4768, 7808,
+    14880, 14912, 7840, 14944, 14976, 4768, 14848, 15008, 1792, 1792, 15040,
+    15072, 15008, 15104, 1792, 1792, 1792, 1792, 1792, 4768, 15136, 4768,
+    13568, 4768, 4768, 15168, 15200, 4768, 4768, 4768, 4768, 4768, 4768,
+    4768, 8192, 4768, 4768, 15232, 7776, 4768, 15264, 4768, 4768, 4768,
+    4768, 15296, 4768, 4768, 4768, 15328, 15360, 4768, 4768, 4768, 7808,
+    4768, 4768, 15392, 1792, 14848, 4768, 15424, 4768, 15456, 15488, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1344, 1344, 1344, 1344,
-    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
@@ -480,8 +480,9 @@ static const unsigned short pageMap[] = {
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 7488, 1792,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 7616,
+    1792, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
@@ -491,8 +492,8 @@ static const unsigned short pageMap[] = {
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
     1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 4000, 1344, 1344,
-    1344, 1344, 1344, 1344, 10784, 1792, 1792, 1792, 1792, 1792, 1792,
+    1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 4032, 1344,
+    1344, 1344, 1344, 1344, 1344, 11136, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
@@ -535,8 +536,8 @@ static const unsigned short pageMap[] = {
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
     1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792, 1792,
-    1792, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
-    1344, 1344, 1344, 1344, 1344, 10784
+    1792, 1792, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344, 1344,
+    1344, 1344, 1344, 1344, 1344, 1344, 11136
 #endif /* TCL_UTF_MAX > 3 */
 };
 
@@ -577,333 +578,336 @@ static const unsigned char groupMap[] = {
     21, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24,
     23, 24, 21, 21, 21, 21, 21, 21, 55, 23, 24, 56, 57, 58, 58, 23, 24,
     59, 60, 61, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 62, 63, 64, 65,
-    66, 21, 67, 67, 21, 68, 21, 69, 21, 21, 21, 21, 67, 21, 21, 70, 21,
-    71, 72, 21, 73, 74, 21, 75, 21, 21, 21, 74, 21, 76, 77, 21, 21, 78,
-    21, 21, 21, 21, 21, 21, 21, 79, 21, 21, 80, 21, 21, 80, 21, 21, 21,
-    21, 80, 81, 82, 82, 83, 21, 21, 21, 21, 21, 84, 21, 15, 21, 21, 21,
-    21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 21, 21, 21, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
-    85, 85, 85, 85, 85, 85, 85, 85, 11, 11, 11, 11, 85, 85, 85, 85, 85,
-    85, 85, 85, 85, 85, 85, 85, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 85, 85, 85, 85, 85, 11, 11, 11, 11, 11, 11, 11, 85,
-    11, 85, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 87, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 23, 24, 23,
-    24, 85, 11, 23, 24, 0, 0, 85, 42, 42, 42, 3, 0, 0, 0, 0, 0, 11, 11,
-    88, 3, 89, 89, 89, 0, 90, 0, 91, 91, 21, 10, 10, 10, 10, 10, 10, 10,
+    66, 21, 67, 67, 21, 68, 21, 69, 70, 21, 21, 21, 67, 71, 21, 72, 21,
+    73, 74, 21, 75, 76, 21, 77, 78, 21, 21, 76, 21, 79, 80, 21, 21, 81,
+    21, 21, 21, 21, 21, 21, 21, 82, 21, 21, 83, 21, 21, 83, 21, 21, 21,
+    84, 83, 85, 86, 86, 87, 21, 21, 21, 21, 21, 88, 21, 15, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 89, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 21, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
+    90, 90, 90, 90, 90, 90, 90, 90, 11, 11, 11, 11, 90, 90, 90, 90, 90,
+    90, 90, 90, 90, 90, 90, 90, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+    11, 11, 11, 11, 90, 90, 90, 90, 90, 11, 11, 11, 11, 11, 11, 11, 90,
+    11, 90, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+    11, 11, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91,
+    91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91,
+    91, 91, 91, 91, 91, 92, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91,
+    91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91,
+    91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 23, 24, 23,
+    24, 90, 11, 23, 24, 0, 0, 90, 42, 42, 42, 3, 93, 0, 0, 0, 0, 11, 11,
+    94, 3, 95, 95, 95, 0, 96, 0, 97, 97, 21, 10, 10, 10, 10, 10, 10, 10,
     10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 0, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 92, 93, 93, 93, 21, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 94, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 95, 96, 96, 97, 98, 99, 100, 100, 100, 101, 102, 103, 23, 24, 23,
+    10, 10, 10, 98, 99, 99, 99, 21, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13, 100, 13, 13, 13, 13, 13, 13, 13, 13,
+    13, 101, 102, 102, 103, 104, 105, 106, 106, 106, 107, 108, 109, 23,
     24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24,
-    23, 24, 23, 24, 104, 105, 106, 21, 107, 108, 7, 23, 24, 109, 23, 24,
-    21, 54, 54, 54, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110,
-    110, 110, 110, 110, 110, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+    23, 24, 23, 24, 23, 24, 110, 111, 112, 113, 114, 115, 7, 23, 24, 116,
+    23, 24, 21, 54, 54, 54, 117, 117, 117, 117, 117, 117, 117, 117, 117,
+    117, 117, 117, 117, 117, 117, 117, 10, 10, 10, 10, 10, 10, 10, 10,
     10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+    10, 10, 10, 10, 10, 10, 10, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
     13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 105, 105, 105, 105, 105, 105, 105, 105, 105, 105, 105, 105,
-    105, 105, 105, 105, 23, 24, 14, 86, 86, 86, 86, 86, 111, 111, 23, 24,
+    13, 13, 13, 13, 13, 111, 111, 111, 111, 111, 111, 111, 111, 111, 111,
+    111, 111, 111, 111, 111, 111, 23, 24, 14, 91, 91, 91, 91, 91, 118,
+    118, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24,
+    23, 24, 23, 24, 23, 24, 119, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24,
+    23, 24, 23, 24, 120, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24,
     23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23,
-    24, 23, 24, 112, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23,
-    24, 113, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23,
-    24, 23, 24, 23, 24, 23, 24, 23, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 114,
-    114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114,
-    114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114,
-    114, 114, 114, 114, 114, 114, 114, 114, 114, 0, 0, 85, 3, 3, 3, 3,
-    3, 3, 0, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
-    115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
-    115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 21, 0,
-    3, 8, 0, 0, 0, 0, 4, 0, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    8, 86, 3, 86, 86, 3, 86, 86, 3, 86, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0, 0, 0, 15, 15, 15, 3, 3, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 17, 17, 17, 17, 0, 7, 7, 7, 3, 3,
-    4, 3, 3, 14, 14, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 3, 0,
-    0, 3, 3, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    85, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 86, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 9, 9, 9,
-    9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 15, 15, 86, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 3, 15, 86, 86, 86,
-    86, 86, 86, 86, 17, 14, 86, 86, 86, 86, 86, 86, 85, 85, 86, 86, 14,
-    86, 86, 86, 86, 15, 15, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 15, 15, 15, 14,
-    14, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 17, 15, 86, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 85, 85, 14, 3, 3, 3, 85, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 86,
-    86, 86, 86, 85, 86, 86, 86, 86, 86, 86, 86, 86, 86, 85, 86, 86, 86,
-    85, 86, 86, 86, 86, 86, 0, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-    3, 3, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 86, 86, 86, 0, 0, 3, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 0, 86, 86, 86, 116,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 86, 116, 86, 15, 116, 116, 116, 86, 86, 86, 86, 86, 86,
-    86, 86, 116, 116, 116, 116, 86, 116, 116, 15, 86, 86, 86, 86, 86, 86,
-    86, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 86, 86, 3, 3, 9, 9, 9,
-    9, 9, 9, 9, 9, 9, 9, 3, 85, 15, 15, 15, 15, 15, 15, 0, 15, 15, 15,
-    15, 15, 15, 15, 0, 86, 116, 116, 0, 15, 15, 15, 15, 15, 15, 15, 15,
-    0, 0, 15, 15, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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+    15, 91, 15, 15, 15, 15, 123, 123, 91, 15, 15, 0, 91, 91, 0, 0, 0, 0,
+    0, 0, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
     21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 85, 85, 85,
-    85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
-    85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
-    85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
-    85, 85, 85, 85, 85, 85, 85, 85, 85, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 21, 85, 119, 21, 21, 21, 120, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 90, 90, 90, 90, 90, 90,
+    90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
+    90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
+    90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
+    90, 90, 90, 90, 90, 90, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 90, 126, 21, 21, 21, 127, 21, 21, 21, 21, 21, 21, 21, 21, 21,
     21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 21, 21, 85, 85, 85, 85, 85, 86, 86, 86, 86, 86, 86,
-    86, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    86, 86, 86, 86, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23,
-    24, 23, 24, 23, 24, 23, 24, 23, 24, 21, 21, 21, 21, 21, 121, 21, 21,
-    122, 21, 123, 123, 123, 123, 123, 123, 123, 123, 124, 124, 124, 124,
-    124, 124, 124, 124, 123, 123, 123, 123, 123, 123, 0, 0, 124, 124, 124,
-    124, 124, 124, 0, 0, 123, 123, 123, 123, 123, 123, 123, 123, 124, 124,
-    124, 124, 124, 124, 124, 124, 123, 123, 123, 123, 123, 123, 123, 123,
-    124, 124, 124, 124, 124, 124, 124, 124, 123, 123, 123, 123, 123, 123,
-    0, 0, 124, 124, 124, 124, 124, 124, 0, 0, 21, 123, 21, 123, 21, 123,
-    21, 123, 0, 124, 0, 124, 0, 124, 0, 124, 123, 123, 123, 123, 123, 123,
-    123, 123, 124, 124, 124, 124, 124, 124, 124, 124, 125, 125, 126, 126,
-    126, 126, 127, 127, 128, 128, 129, 129, 130, 130, 0, 0, 123, 123, 123,
-    123, 123, 123, 123, 123, 131, 131, 131, 131, 131, 131, 131, 131, 123,
-    123, 123, 123, 123, 123, 123, 123, 131, 131, 131, 131, 131, 131, 131,
-    131, 123, 123, 123, 123, 123, 123, 123, 123, 131, 131, 131, 131, 131,
-    131, 131, 131, 123, 123, 21, 132, 21, 0, 21, 21, 124, 124, 133, 133,
-    134, 11, 135, 11, 11, 11, 21, 132, 21, 0, 21, 21, 136, 136, 136, 136,
-    134, 11, 11, 11, 123, 123, 21, 21, 0, 0, 21, 21, 124, 124, 137, 137,
-    0, 11, 11, 11, 123, 123, 21, 21, 21, 106, 21, 21, 124, 124, 138, 138,
-    109, 11, 11, 11, 0, 0, 21, 132, 21, 0, 21, 21, 139, 139, 140, 140,
-    134, 11, 11, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 17, 17, 17, 17, 17,
-    8, 8, 8, 8, 8, 8, 3, 3, 16, 20, 5, 16, 16, 20, 5, 16, 3, 3, 3, 3, 3,
-    3, 3, 3, 141, 142, 17, 17, 17, 17, 17, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-    16, 20, 3, 3, 3, 3, 12, 12, 3, 3, 3, 7, 5, 6, 3, 3, 3, 3, 3, 3, 3,
-    3, 3, 3, 3, 7, 3, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 17, 17, 17,
-    17, 17, 0, 0, 0, 0, 0, 17, 17, 17, 17, 17, 17, 18, 85, 0, 0, 18, 18,
-    18, 18, 18, 18, 7, 7, 7, 5, 6, 85, 18, 18, 18, 18, 18, 18, 18, 18,
-    18, 18, 7, 7, 7, 5, 6, 0, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
-    85, 85, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
-    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
-    86, 86, 111, 111, 111, 111, 86, 111, 111, 111, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 14, 14, 100, 14, 14, 14, 14, 100, 14, 14, 21, 100, 100, 100,
-    21, 21, 100, 100, 100, 21, 14, 100, 14, 14, 7, 100, 100, 100, 100,
-    100, 14, 14, 14, 14, 14, 14, 100, 14, 143, 14, 100, 14, 144, 145, 100,
-    100, 14, 21, 100, 100, 146, 100, 21, 15, 15, 15, 15, 21, 14, 14, 21,
-    21, 100, 100, 7, 7, 7, 7, 7, 100, 21, 21, 21, 21, 14, 7, 14, 14, 147,
-    14, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
-    148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148,
-    148, 148, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149,
-    149, 149, 149, 149, 118, 118, 118, 23, 24, 118, 118, 118, 118, 18,
-    0, 0, 0, 0, 0, 0, 7, 7, 7, 7, 7, 14, 14, 14, 14, 14, 7, 7, 14, 14,
-    14, 14, 7, 14, 14, 7, 14, 14, 7, 14, 14, 14, 14, 14, 14, 14, 7, 14,
+    21, 21, 21, 90, 90, 90, 90, 90, 91, 91, 91, 91, 91, 91, 91, 91, 91,
+    91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 0, 0, 0, 0, 0,
+    0, 91, 91, 91, 91, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 23, 24,
+    23, 24, 23, 24, 23, 24, 23, 24, 23, 24, 21, 21, 21, 21, 21, 128, 21,
+    21, 129, 21, 130, 130, 130, 130, 130, 130, 130, 130, 131, 131, 131,
+    131, 131, 131, 131, 131, 130, 130, 130, 130, 130, 130, 0, 0, 131, 131,
+    131, 131, 131, 131, 0, 0, 130, 130, 130, 130, 130, 130, 130, 130, 131,
+    131, 131, 131, 131, 131, 131, 131, 130, 130, 130, 130, 130, 130, 130,
+    130, 131, 131, 131, 131, 131, 131, 131, 131, 130, 130, 130, 130, 130,
+    130, 0, 0, 131, 131, 131, 131, 131, 131, 0, 0, 21, 130, 21, 130, 21,
+    130, 21, 130, 0, 131, 0, 131, 0, 131, 0, 131, 130, 130, 130, 130, 130,
+    130, 130, 130, 131, 131, 131, 131, 131, 131, 131, 131, 132, 132, 133,
+    133, 133, 133, 134, 134, 135, 135, 136, 136, 137, 137, 0, 0, 130, 130,
+    130, 130, 130, 130, 130, 130, 138, 138, 138, 138, 138, 138, 138, 138,
+    130, 130, 130, 130, 130, 130, 130, 130, 138, 138, 138, 138, 138, 138,
+    138, 138, 130, 130, 130, 130, 130, 130, 130, 130, 138, 138, 138, 138,
+    138, 138, 138, 138, 130, 130, 21, 139, 21, 0, 21, 21, 131, 131, 140,
+    140, 141, 11, 142, 11, 11, 11, 21, 139, 21, 0, 21, 21, 143, 143, 143,
+    143, 141, 11, 11, 11, 130, 130, 21, 21, 0, 0, 21, 21, 131, 131, 144,
+    144, 0, 11, 11, 11, 130, 130, 21, 21, 21, 112, 21, 21, 131, 131, 145,
+    145, 116, 11, 11, 11, 0, 0, 21, 139, 21, 0, 21, 21, 146, 146, 147,
+    147, 141, 11, 11, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 17, 17, 17, 17,
+    17, 8, 8, 8, 8, 8, 8, 3, 3, 16, 20, 5, 16, 16, 20, 5, 16, 3, 3, 3,
+    3, 3, 3, 3, 3, 148, 149, 17, 17, 17, 17, 17, 2, 3, 3, 3, 3, 3, 3, 3,
+    3, 3, 16, 20, 3, 3, 3, 3, 12, 12, 3, 3, 3, 7, 5, 6, 3, 3, 3, 3, 3,
+    3, 3, 3, 3, 3, 3, 7, 3, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 17, 17,
+    17, 17, 17, 0, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 18, 90, 0, 0,
+    18, 18, 18, 18, 18, 18, 7, 7, 7, 5, 6, 90, 18, 18, 18, 18, 18, 18,
+    18, 18, 18, 18, 7, 7, 7, 5, 6, 0, 90, 90, 90, 90, 90, 90, 90, 90, 90,
+    90, 90, 90, 90, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 91, 91, 91, 91, 91, 91, 91, 91, 91,
+    91, 91, 91, 91, 118, 118, 118, 118, 91, 118, 118, 118, 91, 91, 91,
+    91, 91, 91, 91, 91, 91, 91, 91, 91, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 14, 14, 106, 14, 14, 14, 14, 106, 14, 14, 21, 106, 106,
+    106, 21, 21, 106, 106, 106, 21, 14, 106, 14, 14, 7, 106, 106, 106,
+    106, 106, 14, 14, 14, 14, 14, 14, 106, 14, 150, 14, 106, 14, 151, 152,
+    106, 106, 14, 21, 106, 106, 153, 106, 21, 15, 15, 15, 15, 21, 14, 14,
+    21, 21, 106, 106, 7, 7, 7, 7, 7, 106, 21, 21, 21, 21, 14, 7, 14, 14,
+    154, 14, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+    18, 155, 155, 155, 155, 155, 155, 155, 155, 155, 155, 155, 155, 155,
+    155, 155, 155, 156, 156, 156, 156, 156, 156, 156, 156, 156, 156, 156,
+    156, 156, 156, 156, 156, 125, 125, 125, 23, 24, 125, 125, 125, 125,
+    18, 0, 0, 0, 0, 0, 0, 7, 7, 7, 7, 7, 14, 14, 14, 14, 14, 7, 7, 14,
+    14, 14, 14, 7, 14, 14, 7, 14, 14, 7, 14, 14, 14, 14, 14, 14, 14, 7,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 14, 14, 7,
-    14, 7, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 14, 14,
+    7, 14, 7, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7,
     7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
     7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 14, 14,
-    14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 5, 6, 5, 6, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 14, 14, 14, 14,
     14, 14, 14, 5, 6, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
@@ -914,209 +918,222 @@ static const unsigned char groupMap[] = {
     7, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
-    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14,
+    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 150, 150, 150, 150, 150, 150, 150, 150,
-    150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150,
-    150, 150, 150, 150, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151,
-    151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151,
-    151, 151, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
-    18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 7, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 157, 157, 157, 157, 157, 157, 157,
+    157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157,
+    157, 157, 157, 157, 157, 158, 158, 158, 158, 158, 158, 158, 158, 158,
+    158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158, 158,
+    158, 158, 158, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+    18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 7, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7,
+    7, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 18, 18, 18, 18,
+    14, 14, 14, 14, 14, 14, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 18,
     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
-    18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 7, 7, 7, 7, 7, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
-    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 6,
-    5, 6, 5, 6, 5, 6, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
-    7, 7, 7, 7, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5,
-    6, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
-    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 6, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7,
+    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 5, 6, 7, 7, 7, 7, 7, 7,
     7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
-    7, 5, 6, 7, 7, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
-    7, 7, 14, 14, 7, 7, 7, 7, 7, 7, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 0, 0, 0, 0, 0, 0, 114, 114, 114, 114, 114, 114, 114, 114,
-    114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114,
-    114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114,
-    114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 114, 0, 115, 115,
-    115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
-    115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
-    115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
-    115, 115, 115, 0, 23, 24, 152, 153, 154, 155, 156, 23, 24, 23, 24,
-    23, 24, 157, 158, 159, 160, 21, 23, 24, 21, 23, 24, 21, 21, 21, 21,
-    21, 85, 85, 161, 161, 23, 24, 23, 24, 21, 14, 14, 14, 14, 14, 14, 23,
-    24, 23, 24, 86, 86, 86, 23, 24, 0, 0, 0, 0, 0, 3, 3, 3, 3, 18, 3, 3,
-    162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
-    162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
-    162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 0, 162, 0, 0, 0,
-    0, 0, 162, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0, 0, 0, 0, 0, 85,
-    3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 86, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 0, 15, 15,
-    15, 15, 15, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 0, 15, 15, 15, 15,
-    15, 15, 15, 0, 3, 3, 16, 20, 16, 20, 3, 3, 3, 16, 20, 3, 16, 20, 3,
-    3, 3, 3, 3, 3, 3, 3, 3, 8, 3, 3, 8, 3, 16, 20, 3, 3, 16, 20, 5, 6,
-    5, 6, 5, 6, 5, 6, 3, 3, 3, 3, 3, 85, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-    8, 8, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 14, 14, 14,
+    7, 7, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 7, 7, 7, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5,
+    6, 5, 6, 5, 6, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 6, 5, 6, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 5, 6, 7, 7, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
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+    21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 11, 90, 90, 90, 90, 0, 0, 0, 0, 21, 21, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    15, 15, 85, 3, 3, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 116,
-    86, 86, 116, 116, 3, 3, 15, 85, 85, 116, 86, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 15, 15, 15, 15, 15, 15, 0, 0, 15, 15, 15, 15, 15, 15, 0, 0, 15,
-    15, 15, 15, 15, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15,
-    15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 116, 116, 86, 116, 116, 86, 116, 116,
-    3, 116, 86, 0, 0, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 0, 0, 0, 0, 0, 0, 15,
-    15, 15, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 0, 0, 0, 0, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166,
-    166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166,
-    166, 166, 166, 166, 166, 166, 166, 166, 167, 167, 167, 167, 167, 167,
-    167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167,
-    167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 15, 15, 15, 15,
+    0, 0, 15, 15, 15, 123, 123, 91, 123, 123, 91, 123, 123, 3, 123, 91,
+    0, 0, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0,
+    0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0,
+    0, 0, 0, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178,
+    178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178, 178,
+    178, 178, 178, 178, 178, 178, 179, 179, 179, 179, 179, 179, 179, 179,
+    179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 179,
+    179, 179, 179, 179, 179, 179, 179, 179, 179, 179, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 15, 15, 15, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 0, 0, 0, 0, 0, 0, 21, 21, 21, 21, 21, 21, 21, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 21, 21, 21, 21, 21, 0, 0, 0, 0, 0, 15,
-    86, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 0, 15, 15, 15, 15, 15, 0, 15, 0, 15,
-    15, 0, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 0, 0, 0, 0, 0, 0, 21, 21, 21, 21, 21, 21, 21, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 21, 21, 21, 21, 21, 0, 0, 0, 0, 0, 15, 91, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 7, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 0, 15, 15, 15, 15, 15, 0, 15, 0, 15, 15, 0, 15,
+    15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 11, 11, 11, 11, 11,
+    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 6,
+    5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 15, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 4, 14, 0, 0, 86, 86, 86, 86, 86,
-    86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 3, 3, 3, 3, 3, 3, 3, 5,
-    6, 3, 0, 0, 0, 0, 0, 0, 86, 86, 86, 86, 86, 86, 86, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 3, 8, 8, 12, 12, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5,
-    6, 5, 6, 3, 3, 5, 6, 3, 3, 3, 3, 12, 12, 12, 3, 3, 3, 0, 3, 3, 3, 3,
-    8, 5, 6, 5, 6, 5, 6, 3, 3, 3, 7, 8, 7, 7, 7, 0, 3, 4, 3, 3, 0, 0, 0,
-    0, 15, 15, 15, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 17, 0, 3, 3, 3, 4,
-    3, 3, 3, 5, 6, 3, 7, 3, 8, 3, 3, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3,
-    7, 7, 7, 3, 11, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 7, 6, 7, 5,
-    6, 3, 5, 6, 3, 3, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 85, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 85, 85, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0, 15, 15, 15, 15, 15, 15, 0,
-    0, 15, 15, 15, 15, 15, 15, 0, 0, 15, 15, 15, 15, 15, 15, 0, 0, 15,
-    15, 15, 0, 0, 0, 4, 4, 7, 11, 14, 4, 4, 0, 14, 7, 7, 7, 7, 14, 14,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 17, 17, 14, 14, 0, 0
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 4, 14, 0, 0, 91, 91, 91, 91, 91, 91,
+    91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 3, 3, 3, 3, 3, 3, 3, 5, 6,
+    3, 0, 0, 0, 0, 0, 0, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91,
+    91, 91, 0, 0, 3, 8, 8, 12, 12, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6,
+    5, 6, 5, 6, 3, 3, 5, 6, 3, 3, 3, 3, 12, 12, 12, 3, 3, 3, 0, 3, 3, 3,
+    3, 8, 5, 6, 5, 6, 5, 6, 3, 3, 3, 7, 8, 7, 7, 7, 0, 3, 4, 3, 3, 0, 0,
+    0, 0, 15, 15, 15, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 17, 0, 3, 3,
+    3, 4, 3, 3, 3, 5, 6, 3, 7, 3, 8, 3, 3, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+    3, 3, 7, 7, 7, 3, 11, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 7, 6, 7,
+    5, 6, 3, 5, 6, 3, 3, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 90, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 90, 90, 0, 0, 15, 15, 15, 15,
+    15, 15, 0, 0, 15, 15, 15, 15, 15, 15, 0, 0, 15, 15, 15, 15, 15, 15,
+    0, 0, 15, 15, 15, 0, 0, 0, 4, 4, 7, 11, 14, 4, 4, 0, 14, 7, 7, 7, 7,
+    14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 17, 17, 14, 14, 0, 0
 #if TCL_UTF_MAX > 3
     ,15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
@@ -1127,213 +1144,282 @@ static const unsigned char groupMap[] = {
     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
     18, 18, 18, 18, 18, 18, 18, 18, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118,
-    118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118,
-    118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118,
-    118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 18,
+    14, 14, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125,
+    125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125,
+    125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125,
+    125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 125, 18,
     18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 18, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 18, 18, 14, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 86, 0, 0, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 18, 18, 18, 18, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 118, 15, 15, 15, 15, 15, 15, 15, 15, 118, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 3, 15, 15, 15, 15, 0, 0, 0,
-    0, 15, 15, 15, 15, 15, 15, 15, 15, 3, 118, 118, 118, 118, 118, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 168, 168, 168, 168, 168, 168, 168, 168, 168,
-    168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168,
-    168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168,
-    168, 168, 168, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169,
-    169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169,
-    169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169, 169,
-    169, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 9, 9, 9,
-    9, 9, 9, 9, 9, 9, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 0, 0, 15, 0, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 91, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 91, 18,
+    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+    18, 18, 18, 18, 18, 18, 18, 18, 18, 0, 0, 0, 0, 18, 18, 18, 18, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 125, 15, 15, 15, 15, 15, 15, 15, 15,
+    125, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 0, 15, 15, 0, 0, 0, 15, 0, 0, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 91, 91, 91, 91, 91, 0, 0, 0, 0,
+    0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 3, 15, 15,
+    15, 15, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 3, 125, 125, 125,
+    125, 125, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 180, 180, 180, 180, 180, 180,
+    180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180,
+    180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180, 180,
+    180, 180, 180, 180, 180, 180, 181, 181, 181, 181, 181, 181, 181, 181,
+    181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+    181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+    181, 181, 181, 181, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    0, 0, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 0,
+    0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15,
+    15, 0, 0, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 0, 3, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 15, 15,
+    0, 0, 0, 15, 0, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 3, 18, 18, 18, 18, 18,
+    18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 18, 18, 18, 18, 18, 18,
+    18, 0, 0, 0, 0, 0, 0, 0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 18, 18,
+    18, 18, 18, 18, 0, 0, 0, 3, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0,
+    0, 0, 0, 0, 3, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0, 0, 0, 0, 15, 15,
+    15, 91, 91, 91, 0, 91, 91, 0, 0, 0, 0, 0, 91, 91, 91, 91, 15, 15, 15,
+    15, 0, 15, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0,
+    0, 91, 91, 91, 0, 0, 0, 0, 91, 18, 18, 18, 18, 18, 18, 18, 18, 0, 0,
+    0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    18, 18, 18, 18, 18, 18, 0, 0, 0, 3, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 18, 18, 3, 15, 15, 15,
     15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 0, 0, 0, 0, 0, 3, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0, 0, 0, 0, 15,
-    15, 15, 86, 86, 86, 0, 86, 86, 0, 0, 0, 0, 0, 86, 86, 86, 86, 15, 15,
-    15, 15, 0, 15, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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+    106, 106, 0, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 106, 106, 0, 106, 106,
+    106, 106, 0, 106, 106, 106, 106, 106, 0, 106, 0, 0, 0, 106, 106, 106,
+    106, 106, 106, 106, 0, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 21, 21, 21, 21, 21,
     21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
-    100, 100, 100, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 21, 100, 100, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 100,
-    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
-    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 21, 21, 21,
+    21, 21, 21, 21, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 106, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 106, 106, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 21, 21, 21,
     21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 21, 21, 100, 100, 100, 100, 100, 100, 100, 100, 100,
-    100, 100, 100, 100, 100, 100, 100, 21, 21, 21, 21, 21, 21, 0, 0, 100,
-    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
-    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 7, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 21, 21, 21, 21, 21, 21, 0, 0, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 7, 21, 21, 21, 21,
     21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 7, 21, 21, 21, 21, 21, 21, 100, 100, 100, 100, 100,
-    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
-    100, 100, 100, 100, 100, 100, 7, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 7, 21, 21, 21, 21, 21, 21, 106, 106, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 7, 21, 21, 21, 21, 21, 21, 21, 21, 21,
     21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 7,
-    21, 21, 21, 21, 21, 21, 100, 100, 100, 100, 100, 100, 100, 100, 100,
-    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
-    100, 100, 7, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 7, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
     21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 7, 21, 21, 21, 21, 21,
-    21, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
-    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 7, 21,
+    21, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 7, 21,
     21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 21, 21, 21, 21, 21, 7, 21, 21, 21, 21, 21, 21, 100, 100, 100,
-    100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
-    100, 100, 100, 100, 100, 100, 100, 100, 7, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 21, 21, 7, 21, 21, 21, 21, 21, 21, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
+    106, 106, 106, 106, 106, 106, 106, 106, 7, 21, 21, 21, 21, 21, 21,
     21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
-    21, 21, 7, 21, 21, 21, 21, 21, 21, 100, 21, 0, 0, 9, 9, 9, 9, 9, 9,
+    21, 21, 7, 21, 21, 21, 21, 21, 21, 106, 21, 0, 0, 9, 9, 9, 9, 9, 9,
     9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
     9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 15,
+    15, 15, 15, 15, 0, 0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 91, 91, 91,
+    91, 91, 91, 91, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 0, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 0, 15, 15, 0, 15, 0, 0, 15, 0, 15,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 15, 15, 15, 15, 0, 15, 0, 15,
+    0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 15, 0, 15, 0, 15, 0, 15, 15, 15,
+    0, 15, 15, 0, 15, 0, 0, 15, 0, 15, 0, 15, 0, 15, 0, 15, 0, 15, 15,
+    0, 15, 0, 0, 15, 15, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 0, 15,
+    15, 15, 15, 0, 15, 15, 15, 15, 0, 15, 0, 15, 15, 15, 15, 15, 15, 15,
     15, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 15, 15,
-    0, 15, 0, 0, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 15,
-    15, 15, 15, 0, 15, 0, 15, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 15, 0,
-    15, 0, 15, 0, 15, 15, 15, 0, 15, 15, 0, 15, 0, 0, 15, 0, 15, 0, 15,
-    0, 15, 0, 15, 0, 15, 15, 0, 15, 0, 0, 15, 15, 15, 15, 0, 15, 15, 15,
-    15, 15, 15, 15, 0, 15, 15, 15, 15, 0, 15, 15, 15, 15, 0, 15, 0, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 0, 0, 0, 15, 15, 15,
-    0, 15, 15, 15, 15, 15, 0, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 7, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 14, 14, 14,
+    15, 15, 15, 15, 0, 0, 0, 0, 0, 15, 15, 15, 0, 15, 15, 15, 15, 15, 0,
+    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 7, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 0, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
-    18, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 0, 0, 0,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0,
-    0, 0, 0, 0, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 0,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 14,
+    14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 0, 0, 0, 14, 14, 14, 14, 14, 0, 14, 14, 14, 14, 14,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 0, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0,
+    0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 14,
-    14, 14, 14, 0, 0, 0, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
     14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14,
-    14, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0
+    0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0,
+    0, 0, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14,
+    0, 0, 0, 0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0,
+    0, 0, 0, 0, 0, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0, 0, 0, 0,
+    0, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
 #endif /* TCL_UTF_MAX > 3 */
 };
 
@@ -1361,11 +1447,12 @@ static const int groups[] = {
     53057, -24702, 54081, 53569, -41598, 54593, -33150, 54849, 55873,
     55617, 56129, -14206, 609, 451, 674, 20354, -24767, -14271, -33215,
     2763585, -41663, 2762817, -2768510, -49855, 17729, 18241, -2760318,
-    -2759550, -2760062, 53890, 52866, 52610, 51842, 52098, 53122,
-    -10823550, -10830718, 53634, 54146, -2750078, -2751614, 54658,
-    54914, -2745982, 55938, 17794, 55682, 18306, 56194, 4, 6, -21370,
-    9793, 9537, 16449, 16193, 9858, 9602, 8066, 16514, 16258, 2113,
-    16002, 14722, 1, 12162, 13954, 2178, 22146, 20610, -1662, -15295,
+    -2759550, -2760062, 53890, 52866, 52610, 51842, 52098, -10833534,
+    -10832510, 53122, -10823550, -10830718, 53634, 54146, -2750078,
+    -10829950, -2751614, 54658, 54914, -2745982, 55938, -10824062,
+    17794, 55682, 18306, 56194, -10817918, 4, 6, -21370, 29761, 9793,
+    9537, 16449, 16193, 9858, 9602, 8066, 16514, 16258, 2113, 16002,
+    14722, 1, 12162, 13954, 2178, 22146, 20610, -1662, 29826, -15295,
     24706, -1727, 20545, 7, 3905, 3970, 12353, 12418, 8, 1859649,
     10, -9044862, -976254, 15234, -1949375, -1918, -1983, -18814,
     -21886, -25470, -32638, -28542, -32126, -1981, -2174, -18879,
@@ -1373,7 +1460,8 @@ static const int groups[] = {
     -1924287, -2145983, -2115007, 7233, 7298, 4170, 4234, 6749, 6813,
     -2750143, -976319, -2746047, 2763650, 2762882, -2759615, -2751679,
     -2760383, -2760127, -2768575, 1859714, -9044927, -10823615, -10830783,
-    18, 17, 10305, 10370
+    -10833599, -10832575, -10830015, -10817983, -10824127, 18, 17,
+    10305, 10370
 };
 
 #if TCL_UTF_MAX > 3
diff --git a/generic/tclUtf.c b/generic/tclUtf.c
index f0d08e7..15529c7 100644
--- a/generic/tclUtf.c
+++ b/generic/tclUtf.c
@@ -1106,6 +1106,46 @@ Tcl_UtfNcasecmp(
 /*
  *----------------------------------------------------------------------
  *
+ * Tcl_UtfNcasecmp --
+ *
+ *	Compare UTF chars of string cs to string ct case insensitively.
+ *	Replacement for strcasecmp in Tcl core, in places where UTF-8 should
+ *	be handled.
+ *
+ * Results:
+ *	Return <0 if cs < ct, 0 if cs == ct, or >0 if cs > ct.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclUtfCasecmp(
+    const char *cs,		/* UTF string to compare to ct. */
+    const char *ct)		/* UTF string cs is compared to. */
+{
+    while (*cs && *ct) {
+	Tcl_UniChar ch1, ch2;
+
+	cs += TclUtfToUniChar(cs, &ch1);
+	ct += TclUtfToUniChar(ct, &ch2);
+	if (ch1 != ch2) {
+	    ch1 = Tcl_UniCharToLower(ch1);
+	    ch2 = Tcl_UniCharToLower(ch2);
+	    if (ch1 != ch2) {
+		return ch1 - ch2;
+	    }
+	}
+    }
+    return UCHAR(*cs) - UCHAR(*ct);
+}
+
+
+/*
+ *----------------------------------------------------------------------
+ *
  * Tcl_UniCharToUpper --
  *
  *	Compute the uppercase equivalent of the given Unicode character.
@@ -1515,7 +1555,11 @@ Tcl_UniCharIsSpace(
      */
 
     if (((Tcl_UniChar) ch) < ((Tcl_UniChar) 0x80)) {
-	return isspace(UCHAR(ch)); /* INTL: ISO space */
+	return TclIsSpaceProc((char) ch);
+    } else if ((Tcl_UniChar) ch == 0x0085 || (Tcl_UniChar) ch == 0x180e
+	    || (Tcl_UniChar) ch == 0x200b || (Tcl_UniChar) ch == 0x2060
+	    || (Tcl_UniChar) ch == 0x202f || (Tcl_UniChar) ch == 0xfeff) {
+	return 1;
     } else {
 	return ((SPACE_BITS >> GetCategory(ch)) & 1);
     }
diff --git a/generic/tclUtil.c b/generic/tclUtil.c
index 13e54ec..64589a2 100644
--- a/generic/tclUtil.c
+++ b/generic/tclUtil.c
@@ -14,6 +14,7 @@
 
 #include "tclInt.h"
 #include "tclParse.h"
+#include "tclStringTrim.h"
 #include <math.h>
 
 /*
@@ -110,7 +111,11 @@ static Tcl_HashTable *	GetThreadHash(Tcl_ThreadDataKey *keyPtr);
 static int		SetEndOffsetFromAny(Tcl_Interp *interp,
 			    Tcl_Obj *objPtr);
 static void		UpdateStringOfEndOffset(Tcl_Obj *objPtr);
-
+static int		FindElement(Tcl_Interp *interp, const char *string,
+			    int stringLength, const char *typeStr,
+			    const char *typeCode, const char **elementPtr,
+			    const char **nextPtr, int *sizePtr,
+			    int *literalPtr);
 /*
  * The following is the Tcl object type definition for an object that
  * represents a list index in the form, "end-offset". It is used as a
@@ -167,7 +172,7 @@ const Tcl_ObjType tclEndOffsetType = {
  *	  separating whitespace, or a string terminator. It is just another
  *	  character in a list element.
  *
- * The interpretaton of a formatted substring as a list element follows rules
+ * The interpretation of a formatted substring as a list element follows rules
  * similar to the parsing of the words of a command in a Tcl script. Backslash
  * substitution plays a key role, and is defined exactly as it is in command
  * parsing. The same routine, TclParseBackslash() is used in both command
@@ -179,7 +184,7 @@ const Tcl_ObjType tclEndOffsetType = {
  * Backslash substitution replaces an "escape sequence" of one or more
  * characters starting with
  *		\u005c	\	BACKSLASH
- * with a single character. The one character escape sequent case happens only
+ * with a single character. The one character escape sequence case happens only
  * when BACKSLASH is the last character in the string. In all other cases, the
  * escape sequence is at least two characters long.
  *
@@ -236,7 +241,7 @@ const Tcl_ObjType tclEndOffsetType = {
  *   of either braces or quotes to delimit it.
  *
  * This collection of parsing rules is implemented in the routine
- * TclFindElement().
+ * FindElement().
  *
  * In order to produce lists that can be parsed by these rules, we need the
  * ability to distinguish between characters that are part of a list element
@@ -504,9 +509,70 @@ TclFindElement(
 				 * does not/does require a call to 
 				 * TclCopyAndCollapse() by the caller. */
 {
-    const char *p = list;
+    return FindElement(interp, list, listLength, "list", "LIST", elementPtr,
+	    nextPtr, sizePtr, literalPtr);
+}
+
+int
+TclFindDictElement(
+    Tcl_Interp *interp,		/* Interpreter to use for error reporting. If
+				 * NULL, then no error message is left after
+				 * errors. */
+    const char *dict,		/* Points to the first byte of a string
+				 * containing a Tcl dictionary with zero or
+				 * more keys and values (possibly in
+				 * braces). */
+    int dictLength,		/* Number of bytes in the dict's string. */
+    const char **elementPtr,	/* Where to put address of first significant
+				 * character in the first element (i.e., key
+				 * or value) of dict. */
+    const char **nextPtr,	/* Fill in with location of character just
+				 * after all white space following end of
+				 * element (next arg or end of list). */
+    int *sizePtr,		/* If non-zero, fill in with size of
+				 * element. */
+    int *literalPtr)		/* If non-zero, fill in with non-zero/zero to
+				 * indicate that the substring of *sizePtr
+				 * bytes starting at **elementPtr is/is not
+				 * the literal key or value and therefore
+				 * does not/does require a call to 
+				 * TclCopyAndCollapse() by the caller. */
+{
+    return FindElement(interp, dict, dictLength, "dict", "DICTIONARY",
+	    elementPtr, nextPtr, sizePtr, literalPtr);
+}
+
+static int
+FindElement(
+    Tcl_Interp *interp,		/* Interpreter to use for error reporting. If
+				 * NULL, then no error message is left after
+				 * errors. */
+    const char *string,		/* Points to the first byte of a string
+				 * containing a Tcl list or dictionary with
+				 * zero or more elements (possibly in
+				 * braces). */
+    int stringLength,		/* Number of bytes in the string. */
+    const char *typeStr,	/* The name of the type of thing we are
+				 * parsing, for error messages. */
+    const char *typeCode,	/* The type code for thing we are parsing, for
+				 * error messages. */
+    const char **elementPtr,	/* Where to put address of first significant
+				 * character in first element. */
+    const char **nextPtr,	/* Fill in with location of character just
+				 * after all white space following end of
+				 * argument (next arg or end of list/dict). */
+    int *sizePtr,		/* If non-zero, fill in with size of
+				 * element. */
+    int *literalPtr)		/* If non-zero, fill in with non-zero/zero to
+				 * indicate that the substring of *sizePtr
+				 * bytes starting at **elementPtr is/is not
+				 * the literal list/dict element and therefore
+				 * does not/does require a call to 
+				 * TclCopyAndCollapse() by the caller. */
+{
+    const char *p = string;
     const char *elemStart;	/* Points to first byte of first element. */
-    const char *limit;		/* Points just after list's last byte. */
+    const char *limit;		/* Points just after list/dict's last byte. */
     int openBraces = 0;		/* Brace nesting level during parse. */
     int inQuotes = 0;
     int size = 0;		/* lint. */
@@ -516,11 +582,11 @@ TclFindElement(
 
     /*
      * Skim off leading white space and check for an opening brace or quote.
-     * We treat embedded NULLs in the list as bytes belonging to a list
-     * element.
+     * We treat embedded NULLs in the list/dict as bytes belonging to a list 
+     * element (or dictionary key or value).
      */
 
-    limit = (list + listLength);
+    limit = (string + stringLength);
     while ((p < limit) && (TclIsSpaceProc(*p))) {
 	p++;
     }
@@ -581,9 +647,9 @@ TclFindElement(
 			p2++;
 		    }
 		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-			    "list element in braces followed by \"%.*s\" "
-			    "instead of space", (int) (p2-p), p));
-		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "LIST", "JUNK",
+			    "%s element in braces followed by \"%.*s\" "
+			    "instead of space", typeStr, (int) (p2-p), p));
+		    Tcl_SetErrorCode(interp, "TCL", "VALUE", typeCode, "JUNK",
 			    NULL);
 		}
 		return TCL_ERROR;
@@ -650,9 +716,9 @@ TclFindElement(
 			p2++;
 		    }
 		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-			    "list element in quotes followed by \"%.*s\" "
-			    "instead of space", (int) (p2-p), p));
-		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "LIST", "JUNK",
+			    "%s element in quotes followed by \"%.*s\" "
+			    "instead of space", typeStr, (int) (p2-p), p));
+		    Tcl_SetErrorCode(interp, "TCL", "VALUE", typeCode, "JUNK",
 			    NULL);
 		}
 		return TCL_ERROR;
@@ -663,23 +729,23 @@ TclFindElement(
     }
 
     /*
-     * End of list: terminate element.
+     * End of list/dict: terminate element.
      */
 
     if (p == limit) {
 	if (openBraces != 0) {
 	    if (interp != NULL) {
-		Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			"unmatched open brace in list", -1));
-		Tcl_SetErrorCode(interp, "TCL", "VALUE", "LIST", "BRACE",
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"unmatched open brace in %s", typeStr));
+		Tcl_SetErrorCode(interp, "TCL", "VALUE", typeCode, "BRACE",
 			NULL);
 	    }
 	    return TCL_ERROR;
 	} else if (inQuotes) {
 	    if (interp != NULL) {
-		Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			"unmatched open quote in list", -1));
-		Tcl_SetErrorCode(interp, "TCL", "VALUE", "LIST", "QUOTE",
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"unmatched open quote in %s", typeStr));
+		Tcl_SetErrorCode(interp, "TCL", "VALUE", typeCode, "QUOTE",
 			NULL);
 	    }
 	    return TCL_ERROR;
@@ -1768,8 +1834,7 @@ TclTrimLeft(
  */
 
 /* The whitespace characters trimmed during [concat] operations */
-#define CONCAT_WS " \f\v\r\t\n"
-#define CONCAT_WS_SIZE (int) (sizeof(CONCAT_WS "") - 1)
+#define CONCAT_WS_SIZE (int) (sizeof(CONCAT_TRIM_SET "") - 1)
 
 char *
 Tcl_Concat(
@@ -1825,7 +1890,8 @@ Tcl_Concat(
 	 * Trim away the leading whitespace.
 	 */
 
-	trim = TclTrimLeft(element, elemLength, CONCAT_WS, CONCAT_WS_SIZE);
+	trim = TclTrimLeft(element, elemLength, CONCAT_TRIM_SET,
+		CONCAT_WS_SIZE);
 	element += trim;
 	elemLength -= trim;
 
@@ -1834,7 +1900,8 @@ Tcl_Concat(
 	 * a final backslash character.
 	 */
 
-	trim = TclTrimRight(element, elemLength, CONCAT_WS, CONCAT_WS_SIZE);
+	trim = TclTrimRight(element, elemLength, CONCAT_TRIM_SET,
+		CONCAT_WS_SIZE);
 	trim -= trim && (element[elemLength - trim - 1] == '\\');
 	elemLength -= trim;
 
@@ -1959,7 +2026,8 @@ Tcl_ConcatObj(
 	 * Trim away the leading whitespace.
 	 */
 
-	trim = TclTrimLeft(element, elemLength, CONCAT_WS, CONCAT_WS_SIZE);
+	trim = TclTrimLeft(element, elemLength, CONCAT_TRIM_SET,
+		CONCAT_WS_SIZE);
 	element += trim;
 	elemLength -= trim;
 
@@ -1968,7 +2036,8 @@ Tcl_ConcatObj(
 	 * a final backslash character.
 	 */
 
-	trim = TclTrimRight(element, elemLength, CONCAT_WS, CONCAT_WS_SIZE);
+	trim = TclTrimRight(element, elemLength, CONCAT_TRIM_SET,
+		CONCAT_WS_SIZE);
 	trim -= trim && (element[elemLength - trim - 1] == '\\');
 	elemLength -= trim;
 
@@ -2927,14 +2996,16 @@ TclDStringToObj(
 {
     Tcl_Obj *result;
 
-    if (dsPtr->length == 0) {
-	TclNewObj(result);
-    } else if (dsPtr->string == dsPtr->staticSpace) {
-	/*
-	 * Static buffer, so must copy.
-	 */
-
-	TclNewStringObj(result, dsPtr->string, dsPtr->length);
+    if (dsPtr->string == dsPtr->staticSpace) {
+	if (dsPtr->length == 0) {
+	    TclNewObj(result);
+	} else {
+	    /*
+	     * Static buffer, so must copy.
+	     */
+	    
+	    TclNewStringObj(result, dsPtr->string, dsPtr->length);
+	}
     } else {
 	/*
 	 * Dynamic buffer, so transfer ownership and reset.
@@ -3578,10 +3649,9 @@ UpdateStringOfEndOffset(
     register Tcl_Obj *objPtr)
 {
     char buffer[TCL_INTEGER_SPACE + 5];
-    register int len;
+    register int len = 3;
 
     memcpy(buffer, "end", 4);
-    len = sizeof("end") - 1;
     if (objPtr->internalRep.longValue != 0) {
 	buffer[len++] = '-';
 	len += TclFormatInt(buffer+len, -(objPtr->internalRep.longValue));
@@ -4179,7 +4249,8 @@ TclReToGlob(
     const char *reStr,
     int reStrLen,
     Tcl_DString *dsPtr,
-    int *exactPtr)
+    int *exactPtr,
+    int *quantifiersFoundPtr)
 {
     int anchorLeft, anchorRight, lastIsStar, numStars;
     char *dsStr, *dsStrStart;
@@ -4187,6 +4258,9 @@ TclReToGlob(
 
     strEnd = reStr + reStrLen;
     Tcl_DStringInit(dsPtr);
+    if (quantifiersFoundPtr != NULL) {
+	*quantifiersFoundPtr = 0;
+    }
 
     /*
      * "***=xxx" == "*xxx*", watch for glob-sensitive chars.
@@ -4299,6 +4373,9 @@ TclReToGlob(
 	    }
 	    break;
 	case '.':
+	    if (quantifiersFoundPtr != NULL) {
+		*quantifiersFoundPtr = 1;
+	    }
 	    anchorLeft = 0; /* prevent exact match */
 	    if (p+1 < strEnd) {
 		if (p[1] == '*') {
diff --git a/generic/tclVar.c b/generic/tclVar.c
index e31e9cf..0228a2c 100644
--- a/generic/tclVar.c
+++ b/generic/tclVar.c
@@ -47,6 +47,13 @@ static inline void	CleanupVar(Var *varPtr, Var *arrayPtr);
 #define VarHashGetValue(hPtr) \
     ((Var *) ((char *)hPtr - TclOffset(VarInHash, entry)))
 
+/*
+ * NOTE: VarHashCreateVar increments the recount of its key argument.
+ * All callers that will call Tcl_DecrRefCount on that argument must
+ * call Tcl_IncrRefCount on it before passing it in.  This requirement
+ * can bubble up to callers of callers .... etc.
+ */
+
 static inline Var *
 VarHashCreateVar(
     TclVarHashTable *tablePtr,
@@ -137,6 +144,30 @@ static const char *isArrayElement =
 #define HasLocalVars(framePtr) ((framePtr)->isProcCallFrame & FRAME_IS_PROC)
 
 /*
+ * The following structure describes an enumerative search in progress on an
+ * array variable; this are invoked with options to the "array" command.
+ */
+
+typedef struct ArraySearch {
+    int id;			/* Integer id used to distinguish among
+				 * multiple concurrent searches for the same
+				 * array. */
+    struct Var *varPtr;		/* Pointer to array variable that's being
+				 * searched. */
+    Tcl_HashSearch search;	/* Info kept by the hash module about progress
+				 * through the array. */
+    Tcl_HashEntry *nextEntry;	/* Non-null means this is the next element to
+				 * be enumerated (it's leftover from the
+				 * Tcl_FirstHashEntry call or from an "array
+				 * anymore" command). NULL means must call
+				 * Tcl_NextHashEntry to get value to
+				 * return. */
+    struct ArraySearch *nextPtr;/* Next in list of all active searches for
+				 * this variable, or NULL if this is the last
+				 * one. */
+} ArraySearch;
+
+/*
  * Forward references to functions defined later in this file:
  */
 
@@ -383,11 +414,12 @@ TclLookupVar(
 				 * address of array variable. Otherwise this
 				 * is set to NULL. */
 {
-    Tcl_Obj *part1Ptr;
     Var *varPtr;
+    Tcl_Obj *part1Ptr = Tcl_NewStringObj(part1, -1);
 
-    part1Ptr = Tcl_NewStringObj(part1, -1);
-    Tcl_IncrRefCount(part1Ptr);
+    if (createPart1) {
+	Tcl_IncrRefCount(part1Ptr);
+    }
 
     varPtr = TclObjLookupVar(interp, part1Ptr, part2, flags, msg,
 	    createPart1, createPart2, arrayPtrPtr);
@@ -432,6 +464,8 @@ TclLookupVar(
  *	are 1. The object part1Ptr is converted to one of localVarNameType,
  *	tclNsVarNameType or tclParsedVarNameType and caches as much of the
  *	lookup as it can.
+ *	When createPart1 is 1, callers must IncrRefCount part1Ptr if they
+ *	plan to DecrRefCount it.
  *
  *----------------------------------------------------------------------
  */
@@ -460,14 +494,14 @@ TclObjLookupVar(
 				 * address of array variable. Otherwise this
 				 * is set to NULL. */
 {
-    Tcl_Obj *part2Ptr;
+    Tcl_Obj *part2Ptr = NULL;
     Var *resPtr;
 
     if (part2) {
 	part2Ptr = Tcl_NewStringObj(part2, -1);
-	Tcl_IncrRefCount(part2Ptr);
-    } else {
-	part2Ptr = NULL;
+	if (createPart2) {
+	    Tcl_IncrRefCount(part2Ptr);
+	}
     }
 
     resPtr = TclObjLookupVarEx(interp, part1Ptr, part2Ptr,
@@ -480,6 +514,12 @@ TclObjLookupVar(
     return resPtr;
 }
 
+/*
+ *	When createPart1 is 1, callers must IncrRefCount part1Ptr if they
+ *	plan to DecrRefCount it.
+ *	When createPart2 is 1, callers must IncrRefCount part2Ptr if they
+ *	plan to DecrRefCount it.
+ */
 Var *
 TclObjLookupVarEx(
     Tcl_Interp *interp,		/* Interpreter to use for lookup. */
@@ -620,7 +660,9 @@ TclObjLookupVarEx(
 	    part2 = newPart2 = part1Ptr->internalRep.twoPtrValue.ptr2;
 	    if (newPart2) {
 		part2Ptr = Tcl_NewStringObj(newPart2, -1);
-		Tcl_IncrRefCount(part2Ptr);
+		if (createPart2) {
+		    Tcl_IncrRefCount(part2Ptr);
+		}
 	    }
 	    part1Ptr = part1Ptr->internalRep.twoPtrValue.ptr1;
 	    typePtr = part1Ptr->typePtr;
@@ -666,7 +708,9 @@ TclObjLookupVarEx(
 		*(newPart2+len2) = '\0';
 		part2 = newPart2;
 		part2Ptr = Tcl_NewStringObj(newPart2, -1);
-		Tcl_IncrRefCount(part2Ptr);
+		if (createPart2) {
+		    Tcl_IncrRefCount(part2Ptr);
+		}
 
 		/*
 		 * Free the internal rep of the original part1Ptr, now renamed
@@ -847,6 +891,7 @@ TclObjLookupVarEx(
  *
  * Side effects:
  *	A new hashtable entry may be created if create is 1.
+ *	Callers must Incr varNamePtr if they plan to Decr it if create is 1.
  *
  *----------------------------------------------------------------------
  */
@@ -1075,6 +1120,8 @@ TclLookupSimpleVar(
  *	The variable at arrayPtr may be converted to be an array if
  *	createPart1 is 1. A new hashtable entry may be created if createPart2
  *	is 1.
+ *	When createElem is 1, callers must incr elNamePtr if they plan
+ *	to decr it.
  *
  *----------------------------------------------------------------------
  */
@@ -1200,6 +1247,7 @@ TclLookupArrayElement(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_GetVar
 const char *
 Tcl_GetVar(
     Tcl_Interp *interp,		/* Command interpreter in which varName is to
@@ -1209,11 +1257,9 @@ Tcl_GetVar(
 				 * TCL_NAMESPACE_ONLY or TCL_LEAVE_ERR_MSG
 				 * bits. */
 {
-    Tcl_Obj *varNamePtr, *resultPtr;
+    Tcl_Obj *varNamePtr = Tcl_NewStringObj(varName, -1);
+    Tcl_Obj *resultPtr = Tcl_ObjGetVar2(interp, varNamePtr, NULL, flags);
 
-    varNamePtr = Tcl_NewStringObj(varName, -1);
-    Tcl_IncrRefCount(varNamePtr);
-    resultPtr = Tcl_ObjGetVar2(interp, varNamePtr, NULL, flags);
     TclDecrRefCount(varNamePtr);
 
     if (resultPtr == NULL) {
@@ -1257,15 +1303,12 @@ Tcl_GetVar2(
 				 * TCL_NAMESPACE_ONLY and TCL_LEAVE_ERR_MSG *
 				 * bits. */
 {
-    Tcl_Obj *resultPtr, *part1Ptr, *part2Ptr;
+    Tcl_Obj *resultPtr;
+    Tcl_Obj *part2Ptr = NULL, *part1Ptr = Tcl_NewStringObj(part1, -1);
 
-    part1Ptr = Tcl_NewStringObj(part1, -1);
-    Tcl_IncrRefCount(part1Ptr);
     if (part2) {
 	part2Ptr = Tcl_NewStringObj(part2, -1);
 	Tcl_IncrRefCount(part2Ptr);
-    } else {
-	part2Ptr = NULL;
     }
 
     resultPtr = Tcl_ObjGetVar2(interp, part1Ptr, part2Ptr, flags);
@@ -1314,15 +1357,11 @@ Tcl_GetVar2Ex(
     int flags)			/* OR-ed combination of TCL_GLOBAL_ONLY, and
 				 * TCL_LEAVE_ERR_MSG bits. */
 {
-    Tcl_Obj *part1Ptr, *part2Ptr, *resPtr;
+    Tcl_Obj *resPtr, *part2Ptr = NULL, *part1Ptr = Tcl_NewStringObj(part1, -1);
 
-    part1Ptr = Tcl_NewStringObj(part1, -1);
-    Tcl_IncrRefCount(part1Ptr);
     if (part2) {
 	part2Ptr = Tcl_NewStringObj(part2, -1);
 	Tcl_IncrRefCount(part2Ptr);
-    } else {
-	part2Ptr = NULL;
     }
 
     resPtr = Tcl_ObjGetVar2(interp, part1Ptr, part2Ptr, flags);
@@ -1355,6 +1394,8 @@ Tcl_GetVar2Ex(
  *	the returned reference; if you want to keep a reference to the object
  *	you must increment its ref count yourself.
  *
+ *	Callers must incr part2Ptr if they plan to decr it.
+ *
  *----------------------------------------------------------------------
  */
 
@@ -1549,6 +1590,7 @@ Tcl_SetObjCmd(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_SetVar
 const char *
 Tcl_SetVar(
     Tcl_Interp *interp,		/* Command interpreter in which varName is to
@@ -1560,17 +1602,13 @@ Tcl_SetVar(
 				 * TCL_APPEND_VALUE, TCL_LIST_ELEMENT,
 				 * TCL_LEAVE_ERR_MSG. */
 {
-    Tcl_Obj *valuePtr, *varNamePtr, *varValuePtr;
+    Tcl_Obj *varValuePtr, *varNamePtr = Tcl_NewStringObj(varName, -1);
 
-    varNamePtr = Tcl_NewStringObj(varName, -1);
     Tcl_IncrRefCount(varNamePtr);
-    valuePtr = Tcl_NewStringObj(newValue, -1);
-    Tcl_IncrRefCount(valuePtr);
-
-    varValuePtr = Tcl_ObjSetVar2(interp, varNamePtr, NULL, valuePtr, flags);
-
+    varValuePtr = Tcl_ObjSetVar2(interp, varNamePtr, NULL, 
+	    Tcl_NewStringObj(newValue, -1), flags);
     Tcl_DecrRefCount(varNamePtr);
-    Tcl_DecrRefCount(valuePtr);
+
     if (varValuePtr == NULL) {
 	return NULL;
     }
@@ -1618,27 +1656,9 @@ Tcl_SetVar2(
 				 * TCL_APPEND_VALUE, TCL_LIST_ELEMENT, or
 				 * TCL_LEAVE_ERR_MSG. */
 {
-    Tcl_Obj *valuePtr, *part1Ptr, *part2Ptr;
-    Tcl_Obj *varValuePtr;
+    Tcl_Obj *varValuePtr = Tcl_SetVar2Ex(interp, part1, part2,
+	    Tcl_NewStringObj(newValue, -1), flags);
 
-    part1Ptr = Tcl_NewStringObj(part1, -1);
-    Tcl_IncrRefCount(part1Ptr);
-    if (part2 != NULL) {
-	part2Ptr = Tcl_NewStringObj(part2, -1);
-	Tcl_IncrRefCount(part2Ptr);
-    } else {
-	part2Ptr = NULL;
-    }
-    valuePtr = Tcl_NewStringObj(newValue, -1);
-    Tcl_IncrRefCount(valuePtr);
-
-    varValuePtr = Tcl_ObjSetVar2(interp, part1Ptr, part2Ptr, valuePtr, flags);
-
-    Tcl_DecrRefCount(part1Ptr);
-    if (part2Ptr != NULL) {
-	Tcl_DecrRefCount(part2Ptr);
-    }
-    Tcl_DecrRefCount(valuePtr);
     if (varValuePtr == NULL) {
 	return NULL;
     }
@@ -1697,15 +1717,12 @@ Tcl_SetVar2Ex(
 				 * TCL_APPEND_VALUE, TCL_LIST_ELEMENT or
 				 * TCL_LEAVE_ERR_MSG. */
 {
-    Tcl_Obj *part1Ptr, *part2Ptr, *resPtr;
+    Tcl_Obj *resPtr, *part2Ptr = NULL, *part1Ptr = Tcl_NewStringObj(part1, -1);
 
-    part1Ptr = Tcl_NewStringObj(part1, -1);
     Tcl_IncrRefCount(part1Ptr);
     if (part2) {
 	part2Ptr = Tcl_NewStringObj(part2, -1);
 	Tcl_IncrRefCount(part2Ptr);
-    } else {
-	part2Ptr = NULL;
     }
 
     resPtr = Tcl_ObjSetVar2(interp, part1Ptr, part2Ptr, newValuePtr, flags);
@@ -1738,6 +1755,8 @@ Tcl_SetVar2Ex(
  * Side effects:
  *	The value of the given variable is set. If either the array or the
  *	entry didn't exist then a new variable is created.
+ *	Callers must Incr part1Ptr if they plan to Decr it.
+ *	Callers must Incr part2Ptr if they plan to Decr it.
  *
  *----------------------------------------------------------------------
  */
@@ -1939,6 +1958,9 @@ TclPtrSetVar(
 		    Tcl_IncrRefCount(oldValuePtr);	/* Since var is ref */
 		}
 		Tcl_AppendObjToObj(oldValuePtr, newValuePtr);
+		if (newValuePtr->refCount == 0) {
+		    Tcl_DecrRefCount(newValuePtr);
+		}
 	    }
 	}
     } else if (newValuePtr != oldValuePtr) {
@@ -2027,6 +2049,8 @@ TclPtrSetVar(
  *	variable is created. The ref count for the returned object is _not_
  *	incremented to reflect the returned reference; if you want to keep a
  *	reference to the object you must increment its ref count yourself.
+ *	Callers must Incr part1Ptr if they plan to Decr it.
+ *	Callers must Incr part2Ptr if they plan to Decr it.
  *
  *----------------------------------------------------------------------
  */
@@ -2052,8 +2076,8 @@ TclIncrObjVar2(
     varPtr = TclObjLookupVarEx(interp, part1Ptr, part2Ptr, flags, "read",
 	    1, 1, &arrayPtr);
     if (varPtr == NULL) {
-	Tcl_AddObjErrorInfo(interp,
-		"\n    (reading value of variable to increment)", -1);
+	Tcl_AddErrorInfo(interp,
+		"\n    (reading value of variable to increment)");
 	return NULL;
     }
     return TclPtrIncrObjVar(interp, varPtr, arrayPtr, part1Ptr, part2Ptr,
@@ -2109,8 +2133,7 @@ TclPtrIncrObjVar(
 				 * variable, or -1. Only used when part1Ptr is
 				 * NULL. */
 {
-    register Tcl_Obj *varValuePtr, *newValuePtr = NULL;
-    int duplicated, code;
+    register Tcl_Obj *varValuePtr;
 
     if (TclIsVarInHash(varPtr)) {
 	VarHashRefCount(varPtr)++;
@@ -2124,19 +2147,33 @@ TclPtrIncrObjVar(
 	varValuePtr = Tcl_NewIntObj(0);
     }
     if (Tcl_IsShared(varValuePtr)) {
-	duplicated = 1;
+	/* Copy on write */
 	varValuePtr = Tcl_DuplicateObj(varValuePtr);
+	
+	if (TCL_OK == TclIncrObj(interp, varValuePtr, incrPtr)) {
+	    return TclPtrSetVar(interp, varPtr, arrayPtr, part1Ptr, part2Ptr,
+		    varValuePtr, flags, index);
+	} else {
+	    Tcl_DecrRefCount(varValuePtr);
+	    return NULL;
+	}
     } else {
-	duplicated = 0;
-    }
-    code = TclIncrObj(interp, varValuePtr, incrPtr);
-    if (code == TCL_OK) {
-	newValuePtr = TclPtrSetVar(interp, varPtr, arrayPtr, part1Ptr,
-		part2Ptr, varValuePtr, flags, index);
-    } else if (duplicated) {
-	Tcl_DecrRefCount(varValuePtr);
+	/* Unshared - can Incr in place */
+	if (TCL_OK == TclIncrObj(interp, varValuePtr, incrPtr)) {
+
+	    /*
+	     * This seems dumb to write the incremeted value into the var
+	     * after we just adjusted the value in place, but the spec for
+	     * [incr] requires that write traces fire, and making this call
+	     * is the way to make that happen.
+	     */
+
+	    return TclPtrSetVar(interp, varPtr, arrayPtr, part1Ptr, part2Ptr,
+		    varValuePtr, flags, index);
+	} else {
+	    return NULL;
+	}
     }
-    return newValuePtr;
 }
 
 /*
@@ -2159,6 +2196,7 @@ TclPtrIncrObjVar(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_UnsetVar
 int
 Tcl_UnsetVar(
     Tcl_Interp *interp,		/* Command interpreter in which varName is to
@@ -2219,13 +2257,10 @@ Tcl_UnsetVar2(
 				 * TCL_LEAVE_ERR_MSG. */
 {
     int result;
-    Tcl_Obj *part1Ptr, *part2Ptr = NULL;
+    Tcl_Obj *part2Ptr = NULL, *part1Ptr = Tcl_NewStringObj(part1, -1);
 
-    part1Ptr = Tcl_NewStringObj(part1, -1);
-    Tcl_IncrRefCount(part1Ptr);
     if (part2) {
 	part2Ptr = Tcl_NewStringObj(part2, -1);
-	Tcl_IncrRefCount(part2Ptr);
     }
 
     /*
@@ -2841,6 +2876,7 @@ Tcl_LappendObjCmd(
  *
  * Side effects:
  *	A variable will be created if one does not already exist.
+ *	Callers must Incr arrayNameObj if they pland to Decr it.
  *
  *----------------------------------------------------------------------
  */
@@ -3817,6 +3853,53 @@ ArrayNamesCmd(
 /*
  *----------------------------------------------------------------------
  *
+ * TclFindArrayPtrElements --
+ *
+ *	Fill out a hash table (which *must* use Tcl_Obj* keys) with an entry
+ *	for each existing element of the given array. The provided hash table
+ *	is assumed to be initially empty.
+ *
+ * Result:
+ *	none
+ *
+ * Side effects:
+ *	The keys of the array gain an extra reference. The supplied hash table
+ *	has elements added to it.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclFindArrayPtrElements(
+    Var *arrayPtr,
+    Tcl_HashTable *tablePtr)
+{
+    Var *varPtr;
+    Tcl_HashSearch search;
+
+    if ((arrayPtr == NULL) || !TclIsVarArray(arrayPtr)
+	    || TclIsVarUndefined(arrayPtr)) {
+	return;
+    }
+
+    for (varPtr=VarHashFirstVar(arrayPtr->value.tablePtr, &search);
+	    varPtr!=NULL ; varPtr=VarHashNextVar(&search)) {
+	Tcl_HashEntry *hPtr;
+	Tcl_Obj *nameObj;
+	int dummy;
+
+	if (TclIsVarUndefined(varPtr)) {
+	    continue;
+	}
+	nameObj = VarHashGetKey(varPtr);
+	hPtr = Tcl_CreateHashEntry(tablePtr, (char *) nameObj, &dummy);
+	Tcl_SetHashValue(hPtr, nameObj);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * ArraySetCmd --
  *
  *	This object-based function is invoked to process the "array set" Tcl
@@ -4222,17 +4305,17 @@ TclInitArrayCmd(
     Tcl_Interp *interp)		/* Current interpreter. */
 {
     static const EnsembleImplMap arrayImplMap[] = {
-	{"anymore",	ArrayAnyMoreCmd,	NULL, NULL, NULL, 0},
-	{"donesearch",	ArrayDoneSearchCmd,	NULL, NULL, NULL, 0},
-	{"exists",	ArrayExistsCmd,		NULL, NULL, NULL, 0},
-	{"get",		ArrayGetCmd,		NULL, NULL, NULL, 0},
-	{"names",	ArrayNamesCmd,		NULL, NULL, NULL, 0},
-	{"nextelement",	ArrayNextElementCmd,	NULL, NULL, NULL, 0},
-	{"set",		ArraySetCmd,		NULL, NULL, NULL, 0},
-	{"size",	ArraySizeCmd,		NULL, NULL, NULL, 0},
-	{"startsearch",	ArrayStartSearchCmd,	NULL, NULL, NULL, 0},
-	{"statistics",	ArrayStatsCmd,		NULL, NULL, NULL, 0},
-	{"unset",	ArrayUnsetCmd,		NULL, NULL, NULL, 0},
+	{"anymore",	ArrayAnyMoreCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+	{"donesearch",	ArrayDoneSearchCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+	{"exists",	ArrayExistsCmd,		TclCompileArrayExistsCmd, NULL, NULL, 0},
+	{"get",		ArrayGetCmd,		TclCompileBasic1Or2ArgCmd, NULL, NULL, 0},
+	{"names",	ArrayNamesCmd,		TclCompileBasic1To3ArgCmd, NULL, NULL, 0},
+	{"nextelement",	ArrayNextElementCmd,	TclCompileBasic2ArgCmd, NULL, NULL, 0},
+	{"set",		ArraySetCmd,		TclCompileArraySetCmd, NULL, NULL, 0},
+	{"size",	ArraySizeCmd,		TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"startsearch",	ArrayStartSearchCmd,	TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"statistics",	ArrayStatsCmd,		TclCompileBasic1ArgCmd, NULL, NULL, 0},
+	{"unset",	ArrayUnsetCmd,		TclCompileArrayUnsetCmd, NULL, NULL, 0},
 	{NULL, NULL, NULL, NULL, NULL, 0}
     };
 
@@ -4255,6 +4338,8 @@ TclInitArrayCmd(
  *	The variable given by myName is linked to the variable in framePtr
  *	given by otherP1 and otherP2, so that references to myName are
  *	redirected to the other variable like a symbolic link.
+ *	Callers must Incr myNamePtr if they plan to Decr it.
+ *	Callers must Incr otherP1Ptr if they plan to Decr it.
  *
  *----------------------------------------------------------------------
  */
@@ -4320,8 +4405,8 @@ ObjMakeUpvar(
 			|| !HasLocalVars(varFramePtr)
 			|| (strstr(TclGetString(myNamePtr), "::") != NULL))) {
 	    Tcl_SetObjResult((Tcl_Interp *) iPtr, Tcl_ObjPrintf(
-		    "bad variable name \"%s\": upvar won't create "
-		    "namespace variable that refers to procedure variable",
+		    "bad variable name \"%s\": can't create namespace "
+		    "variable that refers to procedure variable",
 		    TclGetString(myNamePtr)));
 	    Tcl_SetErrorCode(interp, "TCL", "UPVAR", "INVERTED", NULL);
 	    return TCL_ERROR;
@@ -4363,14 +4448,12 @@ TclPtrMakeUpvar(
     int index)			/* If the variable to be linked is an indexed
 				 * scalar, this is its index. Otherwise, -1 */
 {
-    Tcl_Obj *myNamePtr;
+    Tcl_Obj *myNamePtr = NULL;
     int result;
 
     if (myName) {
 	myNamePtr = Tcl_NewStringObj(myName, -1);
 	Tcl_IncrRefCount(myNamePtr);
-    } else {
-	myNamePtr = NULL;
     }
     result = TclPtrObjMakeUpvar(interp, otherPtr, myNamePtr, myFlags, index);
     if (myNamePtr) {
@@ -4379,6 +4462,8 @@ TclPtrMakeUpvar(
     return result;
 }
 
+/* Callers must Incr myNamePtr if they plan to Decr it. */
+ 
 int
 TclPtrObjMakeUpvar(
     Tcl_Interp *interp,		/* Interpreter containing variables. Used for
@@ -4421,9 +4506,8 @@ TclPtrObjMakeUpvar(
 		 */
 
 		Tcl_SetObjResult((Tcl_Interp *) iPtr, Tcl_ObjPrintf(
-			"bad variable name \"%s\": upvar won't create a"
-			" scalar variable that looks like an array element",
-			myName));
+			"bad variable name \"%s\": can't create a scalar "
+			"variable that looks like an array element", myName));
 		Tcl_SetErrorCode(interp, "TCL", "UPVAR", "LOCAL_ELEMENT",
 			NULL);
 		return TCL_ERROR;
@@ -4518,6 +4602,7 @@ TclPtrObjMakeUpvar(
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_UpVar
 int
 Tcl_UpVar(
     Tcl_Interp *interp,		/* Command interpreter in which varName is to
@@ -4661,7 +4746,7 @@ Tcl_GetVariableFullName(
     } else if (iPtr->varFramePtr->procPtr) {
 	int index = varPtr - iPtr->varFramePtr->compiledLocals;
 
-	if (index < iPtr->varFramePtr->numCompiledLocals) {
+	if (index >= 0 && index < iPtr->varFramePtr->numCompiledLocals) {
 	    namePtr = localName(iPtr->varFramePtr, index);
 	    Tcl_AppendObjToObj(objPtr, namePtr);
 	}
@@ -5111,7 +5196,8 @@ ParseSearchId(
      * Parse the id.
      */
 
-    if (Tcl_ConvertToType(interp, handleObj, &tclArraySearchType) != TCL_OK) {
+    if ((handleObj->typePtr != &tclArraySearchType)
+	    && (SetArraySearchObj(interp, handleObj) != TCL_OK)) {
 	return NULL;
     }
 
@@ -5242,8 +5328,6 @@ TclDeleteNamespaceVars(
     for (varPtr = VarHashFirstVar(tablePtr, &search);  varPtr != NULL;
 	    varPtr = VarHashFirstVar(tablePtr, &search)) {
 	Tcl_Obj *objPtr = Tcl_NewObj();
-
-	Tcl_IncrRefCount(objPtr);
 	VarHashRefCount(varPtr)++;	/* Make sure we get to remove from
 					 * hash. */
 	Tcl_GetVariableFullName(interp, (Tcl_Var) varPtr, objPtr);
@@ -5507,15 +5591,10 @@ TclVarErrMsg(
 				 * e.g. "read", "set", or "unset". */
     const char *reason)		/* String describing why operation failed. */
 {
-    Tcl_Obj *part1Ptr = NULL, *part2Ptr = NULL;
+    Tcl_Obj *part2Ptr = NULL, *part1Ptr = Tcl_NewStringObj(part1, -1);
 
-    part1Ptr = Tcl_NewStringObj(part1, -1);
-    Tcl_IncrRefCount(part1Ptr);
     if (part2) {
 	part2Ptr = Tcl_NewStringObj(part2, -1);
-	Tcl_IncrRefCount(part2Ptr);
-    } else {
-	part2 = NULL;
     }
 
     TclObjVarErrMsg(interp, part1Ptr, part2Ptr, operation, reason, -1);
@@ -5788,7 +5867,6 @@ Tcl_FindNamespaceVar(
     Tcl_Obj *namePtr = Tcl_NewStringObj(name, -1);
     Tcl_Var var;
 
-    Tcl_IncrRefCount(namePtr);
     var = ObjFindNamespaceVar(interp, namePtr, contextNsPtr, flags);
     Tcl_DecrRefCount(namePtr);
     return var;
@@ -5883,7 +5961,6 @@ ObjFindNamespaceVar(
     varPtr = NULL;
     if (simpleName != name) {
 	simpleNamePtr = Tcl_NewStringObj(simpleName, -1);
-	Tcl_IncrRefCount(simpleNamePtr);
     } else {
 	simpleNamePtr = namePtr;
     }
diff --git a/generic/tclZlib.c b/generic/tclZlib.c
index 544fb6e..956e3f9 100644
--- a/generic/tclZlib.c
+++ b/generic/tclZlib.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2004-2005 Pascal Scheffers <pascal@scheffers.net>
  * Copyright (C) 2005 Unitas Software B.V.
- * Copyright (c) 2008-2009 Donal K. Fellows
+ * Copyright (c) 2008-2012 Donal K. Fellows
  *
  * Parts written by Jean-Claude Wippler, as part of Tclkit, placed in the
  * public domain March 2003.
@@ -26,7 +26,7 @@
  * interface, even if that is mostly true).
  */
 
-#define TCL_ZLIB_VERSION	"2.0"
+#define TCL_ZLIB_VERSION	"2.0.1"
 
 /*
  * Magic flags used with wbits fields to indicate that we're handling the gzip
@@ -74,8 +74,27 @@ typedef struct {
     int wbits;			/* The encoded compression mode, so we can
 				 * restart the stream if necessary. */
     Tcl_Command cmd;		/* Token for the associated Tcl command. */
+    Tcl_Obj *compDictObj;	/* Byte-array object containing compression
+				 * dictionary (not dictObj!) to use if
+				 * necessary. */
+    int flags;			/* Miscellaneous flag bits. */
+    GzipHeader *gzHeaderPtr;	/* If we've allocated a gzip header
+				 * structure. */
 } ZlibStreamHandle;
 
+#define DICT_TO_SET	0x1	/* If we need to set a compression dictionary
+				 * in the low-level engine at the next
+				 * opportunity. */
+
+/*
+ * Macros to make it clearer in some of the twiddlier accesses what is
+ * happening.
+ */
+
+#define IsRawStream(zshPtr)	((zshPtr)->format == TCL_ZLIB_FORMAT_RAW)
+#define HaveDictToSet(zshPtr)	((zshPtr)->flags & DICT_TO_SET)
+#define DictWasSet(zshPtr)	((zshPtr)->flags |= ~DICT_TO_SET)
+
 /*
  * Structure used for stacked channel compression and decompression.
  */
@@ -88,6 +107,11 @@ typedef struct {
 				 * for compression on output, or
 				 * TCL_ZLIB_STREAM_INFLATE for decompression
 				 * on input. */
+    int format;			/* What format of data is going on the wire.
+				 * Needed so that the correct [fconfigure]
+				 * options can be enabled. */
+    int readAheadLimit;		/* The maximum number of bytes to read from
+				 * the underlying stream in one go. */
     z_stream inStream;		/* Structure used by zlib for decompression of
 				 * input. */
     z_stream outStream;		/* Structure used by zlib for compression of
@@ -101,6 +125,9 @@ typedef struct {
 				 * compressing a gzip stream. */
     Tcl_TimerToken timer;	/* Timer used for keeping events fresh. */
     Tcl_DString decompressed;	/* Buffer for decompression results. */
+    Tcl_Obj *compDictObj;	/* Byte-array object containing compression
+				 * dictionary (not dictObj!) to use if
+				 * necessary. */
 } ZlibChannelData;
 
 /*
@@ -117,10 +144,15 @@ typedef struct {
 #define OUT_HEADER		0x4
 
 /*
- * Size of buffers allocated by default. Should be enough...
+ * Size of buffers allocated by default, and the range it can be set to.  The
+ * same sorts of values apply to streams, except with different limits (they
+ * permit byte-level activity). Channels always use bytes unless told to use
+ * larger buffers.
  */
 
 #define DEFAULT_BUFFER_SIZE	4096
+#define MIN_NONSTREAM_BUFFER_SIZE 16
+#define MAX_BUFFER_SIZE		65536
 
 /*
  * Prototypes for private procedures defined later in this file:
@@ -138,19 +170,29 @@ static Tcl_DriverSetOptionProc	ZlibTransformSetOption;
 static Tcl_DriverWatchProc	ZlibTransformWatch;
 static Tcl_ObjCmdProc		ZlibCmd;
 static Tcl_ObjCmdProc		ZlibStreamCmd;
+static Tcl_ObjCmdProc		ZlibStreamAddCmd;
+static Tcl_ObjCmdProc		ZlibStreamHeaderCmd;
+static Tcl_ObjCmdProc		ZlibStreamPutCmd;
 
-static void		ConvertError(Tcl_Interp *interp, int code);
+static void		ConvertError(Tcl_Interp *interp, int code,
+			    uLong adler);
+static Tcl_Obj *	ConvertErrorToList(int code, uLong adler);
 static void		ExtractHeader(gz_header *headerPtr, Tcl_Obj *dictObj);
 static int		GenerateHeader(Tcl_Interp *interp, Tcl_Obj *dictObj,
 			    GzipHeader *headerPtr, int *extraSizePtr);
+static int		ZlibPushSubcmd(Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const objv[]);
 static inline int	ResultCopy(ZlibChannelData *cd, char *buf,
 			    int toRead);
 static int		ResultGenerate(ZlibChannelData *cd, int n, int flush,
 			    int *errorCodePtr);
 static Tcl_Channel	ZlibStackChannelTransform(Tcl_Interp *interp,
-			    int mode, int format, int level,
-			    Tcl_Channel channel, Tcl_Obj *gzipHeaderDictPtr);
+			    int mode, int format, int level, int limit,
+			    Tcl_Channel channel, Tcl_Obj *gzipHeaderDictPtr,
+			    Tcl_Obj *compDictObj);
 static void		ZlibStreamCleanup(ZlibStreamHandle *zshPtr);
+static int		ZlibStreamSubcmd(Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const objv[]);
 static inline void	ZlibTransformEventTimerKill(ZlibChannelData *cd);
 static void		ZlibTransformTimerRun(ClientData clientData);
 
@@ -198,38 +240,139 @@ static void
 ConvertError(
     Tcl_Interp *interp,		/* Interpreter to store the error in. May be
 				 * NULL, in which case nothing happens. */
-    int code)			/* The zlib error code. */
+    int code,			/* The zlib error code. */
+    uLong adler)		/* The checksum expected (for Z_NEED_DICT) */
 {
+    const char *codeStr, *codeStr2 = NULL;
+    char codeStrBuf[TCL_INTEGER_SPACE];
+
     if (interp == NULL) {
 	return;
     }
 
-    if (code == Z_ERRNO) {
+    switch (code) {
+	/*
+	 * Firstly, the case that is *different* because it's really coming
+	 * from the OS and is just being reported via zlib. It should be
+	 * really uncommon because Tcl handles all I/O rather than delegating
+	 * it to zlib, but proving it can't happen is hard.
+	 */
+
+    case Z_ERRNO:
 	Tcl_SetObjResult(interp, Tcl_NewStringObj(Tcl_PosixError(interp),-1));
-    } else {
-	const char *codeStr, *codeStr2 = NULL;
-	char codeStrBuf[TCL_INTEGER_SPACE];
-
-	switch (code) {
-	case Z_STREAM_ERROR:	codeStr = "STREAM";	break;
-	case Z_DATA_ERROR:	codeStr = "DATA";	break;
-	case Z_MEM_ERROR:	codeStr = "MEM";	break;
-	case Z_BUF_ERROR:	codeStr = "BUF";	break;
-	case Z_VERSION_ERROR:	codeStr = "VERSION";	break;
-	default:
-	    codeStr = "unknown";
-	    codeStr2 = codeStrBuf;
-	    sprintf(codeStrBuf, "%d", code);
-	    break;
-	}
-	Tcl_SetObjResult(interp, Tcl_NewStringObj(zError(code), -1));
+	return;
+
+	/*
+	 * Normal errors/conditions, some of which have additional detail and
+	 * some which don't. (This is not defined by array lookup because zlib
+	 * error codes are sometimes negative.)
+	 */
+
+    case Z_STREAM_ERROR:
+	codeStr = "STREAM";
+	break;
+    case Z_DATA_ERROR:
+	codeStr = "DATA";
+	break;
+    case Z_MEM_ERROR:
+	codeStr = "MEM";
+	break;
+    case Z_BUF_ERROR:
+	codeStr = "BUF";
+	break;
+    case Z_VERSION_ERROR:
+	codeStr = "VERSION";
+	break;
+    case Z_NEED_DICT:
+	codeStr = "NEED_DICT";
+	codeStr2 = codeStrBuf;
+	sprintf(codeStrBuf, "%lu", adler);
+	break;
+
+	/*
+	 * These should _not_ happen! This function is for dealing with error
+	 * cases, not non-errors!
+	 */
+
+    case Z_OK:
+	Tcl_Panic("unexpected zlib result in error handler: Z_OK");
+    case Z_STREAM_END:
+	Tcl_Panic("unexpected zlib result in error handler: Z_STREAM_END");
+
+	/*
+	 * Anything else is bad news; it's unexpected. Convert to generic
+	 * error.
+	 */
+
+    default:
+	codeStr = "UNKNOWN";
+	codeStr2 = codeStrBuf;
+	sprintf(codeStrBuf, "%d", code);
+	break;
+    }
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(zError(code), -1));
+
+    /*
+     * Tricky point! We might pass NULL twice here (and will when the error
+     * type is known).
+     */
+
+    Tcl_SetErrorCode(interp, "TCL", "ZLIB", codeStr, codeStr2, NULL);
+}
+
+static Tcl_Obj *
+ConvertErrorToList(
+    int code,			/* The zlib error code. */
+    uLong adler)		/* The checksum expected (for Z_NEED_DICT) */
+{
+    Tcl_Obj *objv[4];
+
+    TclNewLiteralStringObj(objv[0], "TCL");
+    TclNewLiteralStringObj(objv[1], "ZLIB");
+    switch (code) {
+    case Z_STREAM_ERROR:
+	TclNewLiteralStringObj(objv[2], "STREAM");
+	return Tcl_NewListObj(3, objv);
+    case Z_DATA_ERROR:
+	TclNewLiteralStringObj(objv[2], "DATA");
+	return Tcl_NewListObj(3, objv);
+    case Z_MEM_ERROR:
+	TclNewLiteralStringObj(objv[2], "MEM");
+	return Tcl_NewListObj(3, objv);
+    case Z_BUF_ERROR:
+	TclNewLiteralStringObj(objv[2], "BUF");
+	return Tcl_NewListObj(3, objv);
+    case Z_VERSION_ERROR:
+	TclNewLiteralStringObj(objv[2], "VERSION");
+	return Tcl_NewListObj(3, objv);
+    case Z_ERRNO:
+	TclNewLiteralStringObj(objv[2], "POSIX");
+	objv[3] = Tcl_NewStringObj(Tcl_ErrnoId(), -1);
+	return Tcl_NewListObj(4, objv);
+    case Z_NEED_DICT:
+	TclNewLiteralStringObj(objv[2], "NEED_DICT");
+	objv[3] = Tcl_NewWideIntObj((Tcl_WideInt) adler);
+	return Tcl_NewListObj(4, objv);
+
+	/*
+	 * These should _not_ happen! This function is for dealing with error
+	 * cases, not non-errors!
+	 */
+
+    case Z_OK:
+	Tcl_Panic("unexpected zlib result in error handler: Z_OK");
+    case Z_STREAM_END:
+	Tcl_Panic("unexpected zlib result in error handler: Z_STREAM_END");
 
 	/*
-	 * Tricky point! We might pass NULL twice here (and will when the
-	 * error type is known).
+	 * Catch-all. Should be unreachable because all cases are already
+	 * listed above.
 	 */
 
-	Tcl_SetErrorCode(interp, "TCL", "ZLIB", codeStr, codeStr2, NULL);
+    default:
+	TclNewLiteralStringObj(objv[2], "UNKNOWN");
+	TclNewIntObj(objv[3], code);
+	return Tcl_NewListObj(4, objv);
     }
 }
 
@@ -301,7 +444,9 @@ GenerateHeader(
 		NULL);
 	headerPtr->nativeCommentBuf[len] = '\0';
 	headerPtr->header.comment = (Bytef *) headerPtr->nativeCommentBuf;
-	*extraSizePtr += len;
+	if (extraSizePtr != NULL) {
+	    *extraSizePtr += len;
+	}
     }
 
     if (GetValue(interp, dictObj, "crc", &value) != TCL_OK) {
@@ -319,7 +464,9 @@ GenerateHeader(
 		headerPtr->nativeFilenameBuf, MAXPATHLEN-1, NULL, &len, NULL);
 	headerPtr->nativeFilenameBuf[len] = '\0';
 	headerPtr->header.name = (Bytef *) headerPtr->nativeFilenameBuf;
-	*extraSizePtr += len;
+	if (extraSizePtr != NULL) {
+	    *extraSizePtr += len;
+	}
     }
 
     if (GetValue(interp, dictObj, "os", &value) != TCL_OK) {
@@ -360,7 +507,7 @@ GenerateHeader(
  * ExtractHeader --
  *
  *	Take the values out of a gzip header and store them in a dictionary.
- *	SetValue is a helper function.
+ *	SetValue is a helper macro.
  *
  * Results:
  *	None.
@@ -371,18 +518,8 @@ GenerateHeader(
  *----------------------------------------------------------------------
  */
 
-static inline void
-SetValue(
-    Tcl_Obj *dictObj,
-    const char *key,
-    Tcl_Obj *value)
-{
-    Tcl_Obj *keyObj = Tcl_NewStringObj(key, -1);
-
-    Tcl_IncrRefCount(keyObj);
-    Tcl_DictObjPut(NULL, dictObj, keyObj, value);
-    TclDecrRefCount(keyObj);
-}
+#define SetValue(dictObj, key, value) \
+	Tcl_DictObjPut(NULL, (dictObj), Tcl_NewStringObj((key), -1), (value))
 
 static void
 ExtractHeader(
@@ -441,6 +578,34 @@ ExtractHeader(
     }
 }
 
+static int
+SetInflateDictionary(
+    z_streamp strm,
+    Tcl_Obj *compDictObj)
+{
+    if (compDictObj != NULL) {
+	int length;
+	unsigned char *bytes = Tcl_GetByteArrayFromObj(compDictObj, &length);
+
+	return inflateSetDictionary(strm, bytes, (unsigned) length);
+    }
+    return Z_OK;
+}
+
+static int
+SetDeflateDictionary(
+    z_streamp strm,
+    Tcl_Obj *compDictObj)
+{
+    if (compDictObj != NULL) {
+	int length;
+	unsigned char *bytes = Tcl_GetByteArrayFromObj(compDictObj, &length);
+
+	return deflateSetDictionary(strm, bytes, (unsigned) length);
+    }
+    return Z_OK;
+}
+
 /*
  *----------------------------------------------------------------------
  *
@@ -478,7 +643,7 @@ Tcl_ZlibStreamInit(
     int e;
     ZlibStreamHandle *zshPtr = NULL;
     Tcl_DString cmdname;
-    Tcl_CmdInfo cmdinfo;
+    GzipHeader *gzHeaderPtr = NULL;
 
     switch (mode) {
     case TCL_ZLIB_STREAM_DEFLATE:
@@ -493,6 +658,15 @@ Tcl_ZlibStreamInit(
 	    break;
 	case TCL_ZLIB_FORMAT_GZIP:
 	    wbits = WBITS_GZIP;
+	    if (dictObj) {
+		gzHeaderPtr = ckalloc(sizeof(GzipHeader));
+		memset(gzHeaderPtr, 0, sizeof(GzipHeader));
+		if (GenerateHeader(interp, dictObj, gzHeaderPtr,
+			NULL) != TCL_OK) {
+		    ckfree(gzHeaderPtr);
+		    return TCL_ERROR;
+		}
+	    }
 	    break;
 	case TCL_ZLIB_FORMAT_ZLIB:
 	    wbits = WBITS_ZLIB;
@@ -519,6 +693,14 @@ Tcl_ZlibStreamInit(
 	    break;
 	case TCL_ZLIB_FORMAT_GZIP:
 	    wbits = WBITS_GZIP;
+	    gzHeaderPtr = ckalloc(sizeof(GzipHeader));
+	    memset(gzHeaderPtr, 0, sizeof(GzipHeader));
+	    gzHeaderPtr->header.name = (Bytef *)
+		    gzHeaderPtr->nativeFilenameBuf;
+	    gzHeaderPtr->header.name_max = MAXPATHLEN - 1;
+	    gzHeaderPtr->header.comment = (Bytef *)
+		    gzHeaderPtr->nativeCommentBuf;
+	    gzHeaderPtr->header.name_max = MAX_COMMENT_LEN - 1;
 	    break;
 	case TCL_ZLIB_FORMAT_ZLIB:
 	    wbits = WBITS_ZLIB;
@@ -545,6 +727,9 @@ Tcl_ZlibStreamInit(
     zshPtr->wbits = wbits;
     zshPtr->currentInput = NULL;
     zshPtr->streamEnd = 0;
+    zshPtr->compDictObj = NULL;
+    zshPtr->flags = 0;
+    zshPtr->gzHeaderPtr = gzHeaderPtr;
     memset(&zshPtr->stream, 0, sizeof(z_stream));
     zshPtr->stream.adler = 1;
 
@@ -555,12 +740,20 @@ Tcl_ZlibStreamInit(
     if (mode == TCL_ZLIB_STREAM_DEFLATE) {
 	e = deflateInit2(&zshPtr->stream, level, Z_DEFLATED, wbits,
 		MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY);
+	if (e == Z_OK && zshPtr->gzHeaderPtr) {
+	    e = deflateSetHeader(&zshPtr->stream,
+		    &zshPtr->gzHeaderPtr->header);
+	}
     } else {
 	e = inflateInit2(&zshPtr->stream, wbits);
+	if (e == Z_OK && zshPtr->gzHeaderPtr) {
+	    e = inflateGetHeader(&zshPtr->stream,
+		    &zshPtr->gzHeaderPtr->header);
+	}
     }
 
     if (e != Z_OK) {
-	ConvertError(interp, e);
+	ConvertError(interp, e, zshPtr->stream.adler);
 	goto error;
     }
 
@@ -575,8 +768,8 @@ Tcl_ZlibStreamInit(
 	Tcl_DStringInit(&cmdname);
 	TclDStringAppendLiteral(&cmdname, "::tcl::zlib::streamcmd_");
 	TclDStringAppendObj(&cmdname, Tcl_GetObjResult(interp));
-	if (Tcl_GetCommandInfo(interp, Tcl_DStringValue(&cmdname),
-		&cmdinfo) == 1) {
+	if (Tcl_FindCommand(interp, Tcl_DStringValue(&cmdname),
+		NULL, 0) != NULL) {
 	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
 		    "BUG: Stream command name already exists", -1));
 	    Tcl_SetErrorCode(interp, "TCL", "BUG", "EXISTING_CMD", NULL);
@@ -620,7 +813,14 @@ Tcl_ZlibStreamInit(
     }
 
     return TCL_OK;
- error:
+
+  error:
+    if (zshPtr->compDictObj) {
+	Tcl_DecrRefCount(zshPtr->compDictObj);
+    }
+    if (zshPtr->gzHeaderPtr) {
+	ckfree(zshPtr->gzHeaderPtr);
+    }
     ckfree(zshPtr);
     return TCL_ERROR;
 }
@@ -728,6 +928,12 @@ ZlibStreamCleanup(
     if (zshPtr->currentInput) {
 	Tcl_DecrRefCount(zshPtr->currentInput);
     }
+    if (zshPtr->compDictObj) {
+	Tcl_DecrRefCount(zshPtr->compDictObj);
+    }
+    if (zshPtr->gzHeaderPtr) {
+	ckfree(zshPtr->gzHeaderPtr);
+    }
 
     ckfree(zshPtr);
 }
@@ -780,12 +986,24 @@ Tcl_ZlibStreamReset(
     if (zshPtr->mode == TCL_ZLIB_STREAM_DEFLATE) {
 	e = deflateInit2(&zshPtr->stream, zshPtr->level, Z_DEFLATED,
 		zshPtr->wbits, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY);
+	if (e == Z_OK && HaveDictToSet(zshPtr)) {
+	    e = SetDeflateDictionary(&zshPtr->stream, zshPtr->compDictObj);
+	    if (e == Z_OK) {
+		DictWasSet(zshPtr);
+	    }
+	}
     } else {
 	e = inflateInit2(&zshPtr->stream, zshPtr->wbits);
+	if (IsRawStream(zshPtr) && HaveDictToSet(zshPtr) && e == Z_OK) {
+	    e = SetInflateDictionary(&zshPtr->stream, zshPtr->compDictObj);
+	    if (e == Z_OK) {
+		DictWasSet(zshPtr);
+	    }
+	}
     }
 
     if (e != Z_OK) {
-	ConvertError(zshPtr->interp, e);
+	ConvertError(zshPtr->interp, e, zshPtr->stream.adler);
 	/* TODO:cleanup */
 	return TCL_ERROR;
     }
@@ -878,6 +1096,41 @@ Tcl_ZlibStreamChecksum(
 /*
  *----------------------------------------------------------------------
  *
+ * Tcl_ZlibStreamSetCompressionDictionary --
+ *
+ *	Sets the compression dictionary for a stream. This will be used as
+ *	appropriate for the next compression or decompression action performed
+ *	on the stream.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+Tcl_ZlibStreamSetCompressionDictionary(
+    Tcl_ZlibStream zshandle,
+    Tcl_Obj *compressionDictionaryObj)
+{
+    ZlibStreamHandle *zshPtr = (ZlibStreamHandle *) zshandle;
+
+    if (compressionDictionaryObj != NULL) {
+	if (Tcl_IsShared(compressionDictionaryObj)) {
+	    compressionDictionaryObj =
+		    Tcl_DuplicateObj(compressionDictionaryObj);
+	}
+	Tcl_IncrRefCount(compressionDictionaryObj);
+	zshPtr->flags |= DICT_TO_SET;
+    } else {
+	zshPtr->flags &= ~DICT_TO_SET;
+    }
+    if (zshPtr->compDictObj != NULL) {
+	Tcl_DecrRefCount(zshPtr->compDictObj);
+    }
+    zshPtr->compDictObj = compressionDictionaryObj;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * Tcl_ZlibStreamPut --
  *
  *	Add data to the stream for compression or decompression from a
@@ -911,6 +1164,17 @@ Tcl_ZlibStreamPut(
 	zshPtr->stream.next_in = Tcl_GetByteArrayFromObj(data, &size);
 	zshPtr->stream.avail_in = size;
 
+	if (HaveDictToSet(zshPtr)) {
+	    e = SetDeflateDictionary(&zshPtr->stream, zshPtr->compDictObj);
+	    if (e != Z_OK) {
+		if (zshPtr->interp) {
+		    ConvertError(zshPtr->interp, e, zshPtr->stream.adler);
+		}
+		return TCL_ERROR;
+	    }
+	    DictWasSet(zshPtr);
+	}
+
 	/*
 	 * Deflatebound doesn't seem to take various header sizes into
 	 * account, so we add 100 extra bytes.
@@ -948,6 +1212,12 @@ Tcl_ZlibStreamPut(
 
 	    e = deflate(&zshPtr->stream, flush);
 	}
+	if (e != Z_OK && !(flush==Z_FINISH && e==Z_STREAM_END)) {
+	    if (zshPtr->interp) {
+		ConvertError(zshPtr->interp, e, zshPtr->stream.adler);
+	    }
+	    return TCL_ERROR;
+	}
 
 	/*
 	 * And append the final data block.
@@ -1025,7 +1295,7 @@ Tcl_ZlibStreamGet(
 	     * panic for out of memory if we just kept growing the buffer.
 	     */
 
-	    count = 65536;
+	    count = MAX_BUFFER_SIZE;
 	}
 
 	/*
@@ -1073,7 +1343,30 @@ Tcl_ZlibStreamGet(
 	    }
 	}
 
+	/*
+	 * When dealing with a raw stream, we set the dictionary here, once.
+	 * (You can't do it in response to getting Z_NEED_DATA as raw streams
+	 * don't ever issue that.)
+	 */
+
+	if (IsRawStream(zshPtr) && HaveDictToSet(zshPtr)) {
+	    e = SetInflateDictionary(&zshPtr->stream, zshPtr->compDictObj);
+	    if (e != Z_OK) {
+		if (zshPtr->interp) {
+		    ConvertError(zshPtr->interp, e, zshPtr->stream.adler);
+		}
+		return TCL_ERROR;
+	    }
+	    DictWasSet(zshPtr);
+	}
 	e = inflate(&zshPtr->stream, zshPtr->flush);
+	if (e == Z_NEED_DICT && HaveDictToSet(zshPtr)) {
+	    e = SetInflateDictionary(&zshPtr->stream, zshPtr->compDictObj);
+	    if (e == Z_OK) {
+		DictWasSet(zshPtr);
+		e = inflate(&zshPtr->stream, zshPtr->flush);
+	    }
+	};
 	Tcl_ListObjLength(NULL, zshPtr->inData, &listLen);
 
 	while ((zshPtr->stream.avail_out > 0)
@@ -1127,7 +1420,14 @@ Tcl_ZlibStreamGet(
 	     * And call inflate again.
 	     */
 
-	    e = inflate(&zshPtr->stream, zshPtr->flush);
+	    do {
+		e = inflate(&zshPtr->stream, zshPtr->flush);
+		if (e != Z_NEED_DICT || !HaveDictToSet(zshPtr)) {
+		    break;
+		}
+		e = SetInflateDictionary(&zshPtr->stream,zshPtr->compDictObj);
+		DictWasSet(zshPtr);
+	    } while (e == Z_OK);
 	}
 	if (zshPtr->stream.avail_out > 0) {
 	    Tcl_SetByteArrayLength(data,
@@ -1135,7 +1435,7 @@ Tcl_ZlibStreamGet(
 	}
 	if (!(e==Z_OK || e==Z_STREAM_END || e==Z_BUF_ERROR)) {
 	    Tcl_SetByteArrayLength(data, existing);
-	    ConvertError(zshPtr->interp, e);
+	    ConvertError(zshPtr->interp, e, zshPtr->stream.adler);
 	    return TCL_ERROR;
 	}
 	if (e == Z_STREAM_END) {
@@ -1351,7 +1651,7 @@ Tcl_ZlibDeflate(
     return TCL_OK;
 
   error:
-    ConvertError(interp, e);
+    ConvertError(interp, e, stream.adler);
     TclDecrRefCount(obj);
     return TCL_ERROR;
 }
@@ -1530,7 +1830,7 @@ Tcl_ZlibInflate(
 
   error:
     TclDecrRefCount(obj);
-    ConvertError(interp, e);
+    ConvertError(interp, e, stream.adler);
     if (nameBuf) {
 	ckfree(nameBuf);
     }
@@ -1586,11 +1886,10 @@ ZlibCmd(
     int objc,
     Tcl_Obj *const objv[])
 {
-    int command, dlen, mode, format, i, option, level = -1;
+    int command, dlen, i, option, level = -1;
     unsigned start, buffersize = 0;
-    Tcl_ZlibStream zh;
     Byte *data;
-    Tcl_Obj *headerDictObj, *headerVarObj;
+    Tcl_Obj *headerDictObj;
     const char *extraInfoStr = NULL;
     static const char *const commands[] = {
 	"adler32", "compress", "crc32", "decompress", "deflate", "gunzip",
@@ -1601,14 +1900,6 @@ ZlibCmd(
 	CMD_ADLER, CMD_COMPRESS, CMD_CRC, CMD_DECOMPRESS, CMD_DEFLATE,
 	CMD_GUNZIP, CMD_GZIP, CMD_INFLATE, CMD_PUSH, CMD_STREAM
     };
-    static const char *const stream_formats[] = {
-	"compress", "decompress", "deflate", "gunzip", "gzip", "inflate",
-	NULL
-    };
-    enum zlibFormats {
-	FMT_COMPRESS, FMT_DECOMPRESS, FMT_DEFLATE, FMT_GUNZIP, FMT_GZIP,
-	FMT_INFLATE
-    };
 
     if (objc < 2) {
 	Tcl_WrongNumArgs(interp, 1, objv, "command arg ?...?");
@@ -1635,7 +1926,7 @@ ZlibCmd(
 	}
 	data = Tcl_GetByteArrayFromObj(objv[2], &dlen);
 	Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt)
-		Tcl_ZlibAdler32(start, data, dlen)));
+		(uLong) Tcl_ZlibAdler32(start, data, dlen)));
 	return TCL_OK;
     case CMD_CRC:			/* crc32 str ?startvalue?
 					 * -> checksum */
@@ -1652,7 +1943,7 @@ ZlibCmd(
 	}
 	data = Tcl_GetByteArrayFromObj(objv[2], &dlen);
 	Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt)
-		Tcl_ZlibCRC32(start, data, dlen)));
+		(uLong) Tcl_ZlibCRC32(start, data, dlen)));
 	return TCL_OK;
     case CMD_DEFLATE:			/* deflate data ?level?
 					 * -> rawCompressedData */
@@ -1688,12 +1979,27 @@ ZlibCmd(
 		NULL);
     case CMD_GZIP:			/* gzip data ?level?
 					 * -> gzippedCompressedData */
+	headerDictObj = NULL;
+
+	/*
+	 * Legacy argument format support.
+	 */
+
+	if (objc == 4
+		&& Tcl_GetIntFromObj(interp, objv[3], &level) == TCL_OK) {
+	    if (level < 0 || level > 9) {
+		extraInfoStr = "\n    (in -level option)";
+		goto badLevel;
+	    }
+	    return Tcl_ZlibDeflate(interp, TCL_ZLIB_FORMAT_GZIP, objv[2],
+		    level, NULL);
+	}
+
 	if (objc < 3 || objc > 7 || ((objc & 1) == 0)) {
 	    Tcl_WrongNumArgs(interp, 2, objv,
 		    "data ?-level level? ?-header header?");
 	    return TCL_ERROR;
 	}
-	headerDictObj = NULL;
 	for (i=3 ; i<objc ; i+=2) {
 	    static const char *const gzipopts[] = {
 		"-header", "-level", NULL
@@ -1732,7 +2038,8 @@ ZlibCmd(
 		    (int *) &buffersize) != TCL_OK) {
 		return TCL_ERROR;
 	    }
-	    if (buffersize < 16 || buffersize > 65536) {
+	    if (buffersize < MIN_NONSTREAM_BUFFER_SIZE
+		    || buffersize > MAX_BUFFER_SIZE) {
 		goto badBuffer;
 	    }
 	}
@@ -1750,14 +2057,17 @@ ZlibCmd(
 		    (int *) &buffersize) != TCL_OK) {
 		return TCL_ERROR;
 	    }
-	    if (buffersize < 16 || buffersize > 65536) {
+	    if (buffersize < MIN_NONSTREAM_BUFFER_SIZE
+		    || buffersize > MAX_BUFFER_SIZE) {
 		goto badBuffer;
 	    }
 	}
 	return Tcl_ZlibInflate(interp, TCL_ZLIB_FORMAT_ZLIB, objv[2],
 		buffersize, NULL);
-    case CMD_GUNZIP:			/* gunzip gzippeddata ?bufferSize?
+    case CMD_GUNZIP: {			/* gunzip gzippeddata ?bufferSize?
 					 *	-> decompressedData */
+	Tcl_Obj *headerVarObj;
+
 	if (objc < 3 || objc > 5 || ((objc & 1) == 0)) {
 	    Tcl_WrongNumArgs(interp, 2, objv, "data ?-headerVar varName?");
 	    return TCL_ERROR;
@@ -1778,7 +2088,8 @@ ZlibCmd(
 			(int *) &buffersize) != TCL_OK) {
 		    return TCL_ERROR;
 		}
-		if (buffersize < 16 || buffersize > 65536) {
+		if (buffersize < MIN_NONSTREAM_BUFFER_SIZE
+			|| buffersize > MAX_BUFFER_SIZE) {
 		    goto badBuffer;
 		}
 		break;
@@ -1797,215 +2108,360 @@ ZlibCmd(
 	}
 	if (headerVarObj != NULL && Tcl_ObjSetVar2(interp, headerVarObj, NULL,
 		headerDictObj, TCL_LEAVE_ERR_MSG) == NULL) {
-	    if (headerDictObj) {
-		TclDecrRefCount(headerDictObj);
-	    }
 	    return TCL_ERROR;
 	}
 	return TCL_OK;
+    }
     case CMD_STREAM:			/* stream deflate/inflate/...gunzip \
-					 *    ?level?
+					 *    ?options...?
 					 *	-> handleCmd */
-	if (objc < 3 || objc > 4) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "mode ?level?");
-	    return TCL_ERROR;
-	}
-	if (Tcl_GetIndexFromObj(interp, objv[2], stream_formats, "mode", 0,
-		&format) != TCL_OK) {
-	    return TCL_ERROR;
-	}
-	mode = TCL_ZLIB_STREAM_INFLATE;
-	switch ((enum zlibFormats) format) {
-	case FMT_DEFLATE:
-	    mode = TCL_ZLIB_STREAM_DEFLATE;
-	case FMT_INFLATE:
-	    format = TCL_ZLIB_FORMAT_RAW;
-	    break;
-	case FMT_COMPRESS:
-	    mode = TCL_ZLIB_STREAM_DEFLATE;
-	case FMT_DECOMPRESS:
-	    format = TCL_ZLIB_FORMAT_ZLIB;
-	    break;
-	case FMT_GZIP:
-	    mode = TCL_ZLIB_STREAM_DEFLATE;
-	case FMT_GUNZIP:
-	    format = TCL_ZLIB_FORMAT_GZIP;
-	    break;
-	}
-	if (objc == 4) {
-	    if (Tcl_GetIntFromObj(interp, objv[3],
-		    (int *) &level) != TCL_OK) {
-		return TCL_ERROR;
-	    }
-	    if (level < 0 || level > 9) {
-		goto badLevel;
-	    }
-	} else {
-	    level = Z_DEFAULT_COMPRESSION;
-	}
-	if (Tcl_ZlibStreamInit(interp, mode, format, level, NULL,
-		&zh) != TCL_OK) {
-	    return TCL_ERROR;
-	}
-	Tcl_SetObjResult(interp, Tcl_ZlibStreamGetCommandName(zh));
-	return TCL_OK;
-    case CMD_PUSH: {			/* push mode channel options...
+	return ZlibStreamSubcmd(interp, objc, objv);
+    case CMD_PUSH:			/* push mode channel options...
 					 *	-> channel */
-	Tcl_Channel chan;
-	int chanMode;
-	static const char *const pushOptions[] = {
-	    "-header", "-level", "-limit",
-	    NULL
-	};
-	enum pushOptions {poHeader, poLevel, poLimit};
-	Tcl_Obj *headerObj = NULL;
-	int limit = 1, dummy;
+	return ZlibPushSubcmd(interp, objc, objv);
+    };
 
-	if (objc < 4) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "mode channel ?options...?");
-	    return TCL_ERROR;
-	}
+    return TCL_ERROR;
 
-	if (Tcl_GetIndexFromObj(interp, objv[2], stream_formats, "mode", 0,
-		&format) != TCL_OK) {
-	    return TCL_ERROR;
-	}
-	switch ((enum zlibFormats) format) {
-	case FMT_DEFLATE:
-	    mode = TCL_ZLIB_STREAM_DEFLATE;
-	    format = TCL_ZLIB_FORMAT_RAW;
-	    break;
-	case FMT_INFLATE:
-	    mode = TCL_ZLIB_STREAM_INFLATE;
-	    format = TCL_ZLIB_FORMAT_RAW;
-	    break;
-	case FMT_COMPRESS:
-	    mode = TCL_ZLIB_STREAM_DEFLATE;
-	    format = TCL_ZLIB_FORMAT_ZLIB;
-	    break;
-	case FMT_DECOMPRESS:
-	    mode = TCL_ZLIB_STREAM_INFLATE;
-	    format = TCL_ZLIB_FORMAT_ZLIB;
-	    break;
-	case FMT_GZIP:
-	    mode = TCL_ZLIB_STREAM_DEFLATE;
-	    format = TCL_ZLIB_FORMAT_GZIP;
-	    break;
-	case FMT_GUNZIP:
-	    mode = TCL_ZLIB_STREAM_INFLATE;
-	    format = TCL_ZLIB_FORMAT_GZIP;
-	    break;
-	default:
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj("impossible!", -1));
-	    return TCL_ERROR;
-	}
+  badLevel:
+    Tcl_SetObjResult(interp, Tcl_NewStringObj("level must be 0 to 9", -1));
+    Tcl_SetErrorCode(interp, "TCL", "VALUE", "COMPRESSIONLEVEL", NULL);
+    if (extraInfoStr) {
+	Tcl_AddErrorInfo(interp, extraInfoStr);
+    }
+    return TCL_ERROR;
+  badBuffer:
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+	    "buffer size must be %d to %d",
+	    MIN_NONSTREAM_BUFFER_SIZE, MAX_BUFFER_SIZE));
+    Tcl_SetErrorCode(interp, "TCL", "VALUE", "BUFFERSIZE", NULL);
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ZlibStreamSubcmd --
+ *
+ *	Implementation of the [zlib stream] subcommand.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ZlibStreamSubcmd(
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    static const char *const stream_formats[] = {
+	"compress", "decompress", "deflate", "gunzip", "gzip", "inflate",
+	NULL
+    };
+    enum zlibFormats {
+	FMT_COMPRESS, FMT_DECOMPRESS, FMT_DEFLATE, FMT_GUNZIP, FMT_GZIP,
+	FMT_INFLATE
+    };
+    int i, format, mode = 0, option, level;
+    enum objIndices {
+	OPT_COMPRESSION_DICTIONARY = 0,
+	OPT_GZIP_HEADER = 1,
+	OPT_COMPRESSION_LEVEL = 2,
+	OPT_END = -1
+    };
+    Tcl_Obj *obj[3] = { NULL, NULL, NULL };
+#define compDictObj	obj[OPT_COMPRESSION_DICTIONARY]
+#define gzipHeaderObj	obj[OPT_GZIP_HEADER]
+#define levelObj	obj[OPT_COMPRESSION_LEVEL]
+    typedef struct {
+	const char *name;
+	enum objIndices offset;
+    } OptDescriptor;
+    static const OptDescriptor compressionOpts[] = {
+	{ "-dictionary", OPT_COMPRESSION_DICTIONARY },
+	{ "-level",	 OPT_COMPRESSION_LEVEL },
+	{ NULL, OPT_END }
+    };
+    static const OptDescriptor gzipOpts[] = {
+	{ "-header",	 OPT_GZIP_HEADER },
+	{ "-level",	 OPT_COMPRESSION_LEVEL },
+	{ NULL, OPT_END }
+    };
+    static const OptDescriptor expansionOpts[] = {
+	{ "-dictionary", OPT_COMPRESSION_DICTIONARY },
+	{ NULL, OPT_END }
+    };
+    static const OptDescriptor gunzipOpts[] = {
+	{ NULL, OPT_END }
+    };
+    const OptDescriptor *desc = NULL;
+    Tcl_ZlibStream zh;
+
+    if (objc < 3 || !(objc & 1)) {
+	Tcl_WrongNumArgs(interp, 2, objv, "mode ?-option value...?");
+	return TCL_ERROR;
+    }
+    if (Tcl_GetIndexFromObj(interp, objv[2], stream_formats, "mode", 0,
+	    &format) != TCL_OK) {
+	return TCL_ERROR;
+    }
 
-	if (TclGetChannelFromObj(interp, objv[3], &chan, &chanMode,
-		0) != TCL_OK) {
+    /*
+     * The format determines the compression mode and the options that may be
+     * specified.
+     */
+
+    switch ((enum zlibFormats) format) {
+    case FMT_DEFLATE:
+	desc = compressionOpts;
+	mode = TCL_ZLIB_STREAM_DEFLATE;
+	format = TCL_ZLIB_FORMAT_RAW;
+	break;
+    case FMT_INFLATE:
+	desc = expansionOpts;
+	mode = TCL_ZLIB_STREAM_INFLATE;
+	format = TCL_ZLIB_FORMAT_RAW;
+	break;
+    case FMT_COMPRESS:
+	desc = compressionOpts;
+	mode = TCL_ZLIB_STREAM_DEFLATE;
+	format = TCL_ZLIB_FORMAT_ZLIB;
+	break;
+    case FMT_DECOMPRESS:
+	desc = expansionOpts;
+	mode = TCL_ZLIB_STREAM_INFLATE;
+	format = TCL_ZLIB_FORMAT_ZLIB;
+	break;
+    case FMT_GZIP:
+	desc = gzipOpts;
+	mode = TCL_ZLIB_STREAM_DEFLATE;
+	format = TCL_ZLIB_FORMAT_GZIP;
+	break;
+    case FMT_GUNZIP:
+	desc = gunzipOpts;
+	mode = TCL_ZLIB_STREAM_INFLATE;
+	format = TCL_ZLIB_FORMAT_GZIP;
+	break;
+    default:
+	Tcl_Panic("should be unreachable");
+    }
+
+    /*
+     * Parse the options.
+     */
+
+    for (i=3 ; i<objc ; i+=2) {
+	if (Tcl_GetIndexFromObjStruct(interp, objv[i], desc,
+		sizeof(OptDescriptor), "option", 0, &option) != TCL_OK) {
 	    return TCL_ERROR;
 	}
+	obj[desc[option].offset] = objv[i+1];
+    }
 
-	/*
-	 * Sanity checks.
-	 */
+    /*
+     * If a compression level was given, parse it (integral: 0..9). Otherwise
+     * use the default.
+     */
 
-	if (mode == TCL_ZLIB_STREAM_DEFLATE && !(chanMode & TCL_WRITABLE)) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "compression may only be applied to writable channels",
-		    -1));
-	    Tcl_SetErrorCode(interp, "TCL", "ZIP", "UNWRITABLE", NULL);
+    if (levelObj == NULL) {
+	level = Z_DEFAULT_COMPRESSION;
+    } else if (Tcl_GetIntFromObj(interp, levelObj, &level) != TCL_OK) {
+	return TCL_ERROR;
+    } else if (level < 0 || level > 9) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj("level must be 0 to 9",-1));
+	Tcl_SetErrorCode(interp, "TCL", "VALUE", "COMPRESSIONLEVEL", NULL);
+	Tcl_AddErrorInfo(interp, "\n    (in -level option)");
+	return TCL_ERROR;
+    }
+
+    /*
+     * Construct the stream now we know its configuration.
+     */
+
+    if (Tcl_ZlibStreamInit(interp, mode, format, level, gzipHeaderObj,
+	    &zh) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    if (compDictObj != NULL) {
+	Tcl_ZlibStreamSetCompressionDictionary(zh, compDictObj);
+    }
+    Tcl_SetObjResult(interp, Tcl_ZlibStreamGetCommandName(zh));
+    return TCL_OK;
+#undef compDictObj
+#undef gzipHeaderObj
+#undef levelObj
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ZlibPushSubcmd --
+ *
+ *	Implementation of the [zlib push] subcommand.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ZlibPushSubcmd(
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    static const char *const stream_formats[] = {
+	"compress", "decompress", "deflate", "gunzip", "gzip", "inflate",
+	NULL
+    };
+    enum zlibFormats {
+	FMT_COMPRESS, FMT_DECOMPRESS, FMT_DEFLATE, FMT_GUNZIP, FMT_GZIP,
+	FMT_INFLATE
+    };
+    Tcl_Channel chan;
+    int chanMode, format, mode = 0, level, i, option;
+    static const char *const pushCompressOptions[] = {
+	"-dictionary", "-header", "-level", NULL
+    };
+    static const char *const pushDecompressOptions[] = {
+	"-dictionary", "-header", "-level", "-limit", NULL
+    };
+    const char *const *pushOptions = pushDecompressOptions;
+    enum pushOptions {poDictionary, poHeader, poLevel, poLimit};
+    Tcl_Obj *headerObj = NULL, *compDictObj = NULL;
+    int limit = 1, dummy;
+
+    if (objc < 4) {
+	Tcl_WrongNumArgs(interp, 2, objv, "mode channel ?options...?");
+	return TCL_ERROR;
+    }
+
+    if (Tcl_GetIndexFromObj(interp, objv[2], stream_formats, "mode", 0,
+	    &format) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    switch ((enum zlibFormats) format) {
+    case FMT_DEFLATE:
+	mode = TCL_ZLIB_STREAM_DEFLATE;
+	format = TCL_ZLIB_FORMAT_RAW;
+	pushOptions = pushCompressOptions;
+	break;
+    case FMT_INFLATE:
+	mode = TCL_ZLIB_STREAM_INFLATE;
+	format = TCL_ZLIB_FORMAT_RAW;
+	break;
+    case FMT_COMPRESS:
+	mode = TCL_ZLIB_STREAM_DEFLATE;
+	format = TCL_ZLIB_FORMAT_ZLIB;
+	pushOptions = pushCompressOptions;
+	break;
+    case FMT_DECOMPRESS:
+	mode = TCL_ZLIB_STREAM_INFLATE;
+	format = TCL_ZLIB_FORMAT_ZLIB;
+	break;
+    case FMT_GZIP:
+	mode = TCL_ZLIB_STREAM_DEFLATE;
+	format = TCL_ZLIB_FORMAT_GZIP;
+	pushOptions = pushCompressOptions;
+	break;
+    case FMT_GUNZIP:
+	mode = TCL_ZLIB_STREAM_INFLATE;
+	format = TCL_ZLIB_FORMAT_GZIP;
+	break;
+    default:
+	Tcl_Panic("should be unreachable");
+    }
+
+    if (TclGetChannelFromObj(interp, objv[3], &chan, &chanMode, 0) != TCL_OK){
+	return TCL_ERROR;
+    }
+
+    /*
+     * Sanity checks.
+     */
+
+    if (mode == TCL_ZLIB_STREAM_DEFLATE && !(chanMode & TCL_WRITABLE)) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"compression may only be applied to writable channels", -1));
+	Tcl_SetErrorCode(interp, "TCL", "ZIP", "UNWRITABLE", NULL);
+	return TCL_ERROR;
+    }
+    if (mode == TCL_ZLIB_STREAM_INFLATE && !(chanMode & TCL_READABLE)) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"decompression may only be applied to readable channels",-1));
+	Tcl_SetErrorCode(interp, "TCL", "ZIP", "UNREADABLE", NULL);
+	return TCL_ERROR;
+    }
+
+    /*
+     * Parse options.
+     */
+
+    level = Z_DEFAULT_COMPRESSION;
+    for (i=4 ; i<objc ; i++) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], pushOptions, "option", 0,
+		&option) != TCL_OK) {
 	    return TCL_ERROR;
 	}
-	if (mode == TCL_ZLIB_STREAM_INFLATE && !(chanMode & TCL_READABLE)) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "decompression may only be applied to readable channels",
-		    -1));
-	    Tcl_SetErrorCode(interp, "TCL", "ZIP", "UNREADABLE", NULL);
+	if (++i > objc-1) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "value missing for %s option", pushOptions[option]));
+	    Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
 	    return TCL_ERROR;
 	}
-
-	/*
-	 * Parse options.
-	 */
-
-	level = Z_DEFAULT_COMPRESSION;
-	for (i=4 ; i<objc ; i++) {
-	    if (Tcl_GetIndexFromObj(interp, objv[i], pushOptions, "option", 0,
-		    &option) != TCL_OK) {
-		return TCL_ERROR;
+	switch ((enum pushOptions) option) {
+	case poHeader:
+	    headerObj = objv[i];
+	    if (Tcl_DictObjSize(interp, headerObj, &dummy) != TCL_OK) {
+		goto genericOptionError;
 	    }
-	    switch ((enum pushOptions) option) {
-	    case poHeader:
-		if (++i > objc-1) {
-		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			    "value missing for -header option", -1));
-		    Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
-		    return TCL_ERROR;
-		}
-		headerObj = objv[i];
-		if (Tcl_DictObjSize(interp, headerObj, &dummy) != TCL_OK) {
-		    Tcl_AddErrorInfo(interp, "\n    (in -header option)");
-		    return TCL_ERROR;
-		}
-		break;
-	    case poLevel:
-		if (++i > objc-1) {
-		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			    "value missing for -level option", -1));
-		    Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
-		    return TCL_ERROR;
-		}
-		if (Tcl_GetIntFromObj(interp, objv[i],
-			(int *) &level) != TCL_OK) {
-		    Tcl_AddErrorInfo(interp, "\n    (in -level option)");
-		    return TCL_ERROR;
-		}
-		if (level < 0 || level > 9) {
-		    extraInfoStr = "\n    (in -level option)";
-		    goto badLevel;
-		}
-		break;
-	    case poLimit:
-		if (++i > objc-1) {
-		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			    "value missing for -limit option", -1));
-		    Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
-		    return TCL_ERROR;
-		}
-		if (Tcl_GetIntFromObj(interp, objv[i],
-			(int *) &limit) != TCL_OK) {
-		    Tcl_AddErrorInfo(interp, "\n    (in -limit option)");
-		    return TCL_ERROR;
-		}
-		if (limit < 1) {
-		    limit = 1;
-		}
-		break;
+	    break;
+	case poLevel:
+	    if (Tcl_GetIntFromObj(interp, objv[i], (int*) &level) != TCL_OK) {
+		goto genericOptionError;
 	    }
+	    if (level < 0 || level > 9) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"level must be 0 to 9", -1));
+		Tcl_SetErrorCode(interp, "TCL", "VALUE", "COMPRESSIONLEVEL",
+			NULL);
+		goto genericOptionError;
+	    }
+	    break;
+	case poLimit:
+	    if (Tcl_GetIntFromObj(interp, objv[i], (int*) &limit) != TCL_OK) {
+		goto genericOptionError;
+	    }
+	    if (limit < 1 || limit > MAX_BUFFER_SIZE) {
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"read ahead limit must be 1 to %d",
+			MAX_BUFFER_SIZE));
+		Tcl_SetErrorCode(interp, "TCL", "VALUE", "BUFFERSIZE", NULL);
+		goto genericOptionError;
+	    }
+	    break;
+	case poDictionary:
+	    if (format == TCL_ZLIB_FORMAT_GZIP) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"a compression dictionary may not be set in the "
+			"gzip format", -1));
+		Tcl_SetErrorCode(interp, "TCL", "ZIP", "BADOPT", NULL);
+		goto genericOptionError;
+	    }
+	    compDictObj = objv[i];
+	    break;
 	}
-
-	if (ZlibStackChannelTransform(interp, mode, format, level, chan,
-		headerObj) == NULL) {
-	    return TCL_ERROR;
-	}
-	Tcl_SetObjResult(interp, objv[3]);
-	return TCL_OK;
     }
-    };
-
-    return TCL_ERROR;
 
-  badLevel:
-    Tcl_SetObjResult(interp, Tcl_NewStringObj("level must be 0 to 9", -1));
-    Tcl_SetErrorCode(interp, "TCL", "VALUE", "COMPRESSIONLEVEL", NULL);
-    if (extraInfoStr) {
-	Tcl_AddErrorInfo(interp, extraInfoStr);
+    if (ZlibStackChannelTransform(interp, mode, format, level, limit, chan,
+	    headerObj, compDictObj) == NULL) {
+	return TCL_ERROR;
     }
-    return TCL_ERROR;
-  badBuffer:
-    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-	    "buffer size must be 32 to 65536", -1));
-    Tcl_SetErrorCode(interp, "TCL", "VALUE", "BUFFERSIZE", NULL);
+    Tcl_SetObjResult(interp, objv[3]);
+    return TCL_OK;
+
+  genericOptionError:
+    Tcl_AddErrorInfo(interp, "\n    (in ");
+    Tcl_AddErrorInfo(interp, pushOptions[option]);
+    Tcl_AddErrorInfo(interp, " option)");
     return TCL_ERROR;
 }
 
@@ -2027,22 +2483,16 @@ ZlibStreamCmd(
     Tcl_Obj *const objv[])
 {
     Tcl_ZlibStream zstream = cd;
-    int command, index, count, code, buffersize = -1, flush = -1, i;
+    int command, count, code;
     Tcl_Obj *obj;
     static const char *const cmds[] = {
 	"add", "checksum", "close", "eof", "finalize", "flush",
-	"fullflush", "get", "put", "reset",
+	"fullflush", "get", "header", "put", "reset",
 	NULL
     };
     enum zlibStreamCommands {
 	zs_add, zs_checksum, zs_close, zs_eof, zs_finalize, zs_flush,
-	zs_fullflush, zs_get, zs_put, zs_reset
-    };
-    static const char *const add_options[] = {
-	"-buffer", "-finalize", "-flush", "-fullflush", NULL
-    };
-    enum addOptions {
-	ao_buffer, ao_finalize, ao_flush, ao_fullflush
+	zs_fullflush, zs_get, zs_header, zs_put, zs_reset
     };
 
     if (objc < 2) {
@@ -2057,125 +2507,11 @@ ZlibStreamCmd(
 
     switch ((enum zlibStreamCommands) command) {
     case zs_add:		/* $strm add ?$flushopt? $data */
-	for (i=2; i<objc-1; i++) {
-	    if (Tcl_GetIndexFromObj(interp, objv[i], add_options, "option", 0,
-		    &index) != TCL_OK) {
-		return TCL_ERROR;
-	    }
-
-	    switch ((enum addOptions) index) {
-	    case ao_flush: /* -flush */
-		if (flush > -1) {
-		    flush = -2;
-		} else {
-		    flush = Z_SYNC_FLUSH;
-		}
-		break;
-	    case ao_fullflush: /* -fullflush */
-		if (flush > -1) {
-		    flush = -2;
-		} else {
-		    flush = Z_FULL_FLUSH;
-		}
-		break;
-	    case ao_finalize: /* -finalize */
-		if (flush > -1) {
-		    flush = -2;
-		} else {
-		    flush = Z_FINISH;
-		}
-		break;
-	    case ao_buffer: /* -buffer */
-		if (i == objc-2) {
-		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			    "\"-buffer\" option must be followed by integer"
-			    " decompression buffersize", -1));
-		    Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
-		    return TCL_ERROR;
-		}
-		if (Tcl_GetIntFromObj(interp, objv[i+1],
-			&buffersize) != TCL_OK) {
-		    return TCL_ERROR;
-		}
-		if (buffersize < 1 || buffersize > 65536) {
-		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			    "buffer size must be 32 to 65536", -1));
-		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "BUFFERSIZE",
-			    NULL);
-		    return TCL_ERROR;
-		}
-	    }
-
-	    if (flush == -2) {
-		Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			"\"-flush\", \"-fullflush\" and \"-finalize\" options"
-			" are mutually exclusive", -1));
-		Tcl_SetErrorCode(interp, "TCL", "ZIP", "EXCLUSIVE", NULL);
-		return TCL_ERROR;
-	    }
-	}
-	if (flush == -1) {
-	    flush = 0;
-	}
-
-	if (Tcl_ZlibStreamPut(zstream, objv[objc-1], flush) != TCL_OK) {
-	    return TCL_ERROR;
-	}
-	TclNewObj(obj);
-	code = Tcl_ZlibStreamGet(zstream, obj, buffersize);
-	if (code == TCL_OK) {
-	    Tcl_SetObjResult(interp, obj);
-	} else {
-	    TclDecrRefCount(obj);
-	}
-	return code;
-
+	return ZlibStreamAddCmd(zstream, interp, objc, objv);
+    case zs_header:		/* $strm header */
+	return ZlibStreamHeaderCmd(zstream, interp, objc, objv);
     case zs_put:		/* $strm put ?$flushopt? $data */
-	for (i=2; i<objc-1; i++) {
-	    if (Tcl_GetIndexFromObj(interp, objv[i], add_options, "option", 0,
-		    &index) != TCL_OK) {
-		return TCL_ERROR;
-	    }
-
-	    switch ((enum addOptions) index) {
-	    case ao_flush: /* -flush */
-		if (flush > -1) {
-		    flush = -2;
-		} else {
-		    flush = Z_SYNC_FLUSH;
-		}
-		break;
-	    case ao_fullflush: /* -fullflush */
-		if (flush > -1) {
-		    flush = -2;
-		} else {
-		    flush = Z_FULL_FLUSH;
-		}
-		break;
-	    case ao_finalize: /* -finalize */
-		if (flush > -1) {
-		    flush = -2;
-		} else {
-		    flush = Z_FINISH;
-		}
-		break;
-	    case ao_buffer:
-		Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			"\"-buffer\" option not supported here", -1));
-		return TCL_ERROR;
-	    }
-	    if (flush == -2) {
-		Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			"\"-flush\", \"-fullflush\" and \"-finalize\" options"
-			" are mutually exclusive", -1));
-		Tcl_SetErrorCode(interp, "TCL", "ZIP", "EXCLUSIVE", NULL);
-		return TCL_ERROR;
-	    }
-	}
-	if (flush == -1) {
-	    flush = 0;
-	}
-	return Tcl_ZlibStreamPut(zstream, objv[objc-1], flush);
+	return ZlibStreamPutCmd(zstream, interp, objc, objv);
 
     case zs_get:		/* $strm get ?count? */
 	if (objc > 3) {
@@ -2252,7 +2588,7 @@ ZlibStreamCmd(
 	    return TCL_ERROR;
 	}
 	Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt)
-		Tcl_ZlibStreamChecksum(zstream)));
+		(uLong) Tcl_ZlibStreamChecksum(zstream)));
 	return TCL_OK;
     case zs_reset:		/* $strm reset */
 	if (objc != 2) {
@@ -2264,6 +2600,246 @@ ZlibStreamCmd(
 
     return TCL_OK;
 }
+
+static int
+ZlibStreamAddCmd(
+    ClientData cd,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_ZlibStream zstream = cd;
+    int index, code, buffersize = -1, flush = -1, i;
+    Tcl_Obj *obj, *compDictObj = NULL;
+    static const char *const add_options[] = {
+	"-buffer", "-dictionary", "-finalize", "-flush", "-fullflush", NULL
+    };
+    enum addOptions {
+	ao_buffer, ao_dictionary, ao_finalize, ao_flush, ao_fullflush
+    };
+
+    for (i=2; i<objc-1; i++) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], add_options, "option", 0,
+		&index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+
+	switch ((enum addOptions) index) {
+	case ao_flush: /* -flush */
+	    if (flush > -1) {
+		flush = -2;
+	    } else {
+		flush = Z_SYNC_FLUSH;
+	    }
+	    break;
+	case ao_fullflush: /* -fullflush */
+	    if (flush > -1) {
+		flush = -2;
+	    } else {
+		flush = Z_FULL_FLUSH;
+	    }
+	    break;
+	case ao_finalize: /* -finalize */
+	    if (flush > -1) {
+		flush = -2;
+	    } else {
+		flush = Z_FINISH;
+	    }
+	    break;
+	case ao_buffer: /* -buffer */
+	    if (i == objc-2) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"\"-buffer\" option must be followed by integer "
+			"decompression buffersize", -1));
+		Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
+		return TCL_ERROR;
+	    }
+	    if (Tcl_GetIntFromObj(interp, objv[++i], &buffersize) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    if (buffersize < 1 || buffersize > MAX_BUFFER_SIZE) {
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"buffer size must be 1 to %d",
+			MAX_BUFFER_SIZE));
+		Tcl_SetErrorCode(interp, "TCL", "VALUE", "BUFFERSIZE", NULL);
+		return TCL_ERROR;
+	    }
+	    break;
+	case ao_dictionary:
+	    if (i == objc-2) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"\"-dictionary\" option must be followed by"
+			" compression dictionary bytes", -1));
+		Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
+		return TCL_ERROR;
+	    }
+	    compDictObj = objv[++i];
+	    break;
+	}
+
+	if (flush == -2) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "\"-flush\", \"-fullflush\" and \"-finalize\" options"
+		    " are mutually exclusive", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "ZIP", "EXCLUSIVE", NULL);
+	    return TCL_ERROR;
+	}
+    }
+    if (flush == -1) {
+	flush = 0;
+    }
+
+    /*
+     * Set the compression dictionary if requested.
+     */
+
+    if (compDictObj != NULL) {
+	int len;
+
+	(void) Tcl_GetByteArrayFromObj(compDictObj, &len);
+	if (len == 0) {
+	    compDictObj = NULL;
+	}
+	Tcl_ZlibStreamSetCompressionDictionary(zstream, compDictObj);
+    }
+
+    /*
+     * Send the data to the stream core, along with any flushing directive.
+     */
+
+    if (Tcl_ZlibStreamPut(zstream, objv[objc-1], flush) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Get such data out as we can (up to the requested length).
+     */
+
+    TclNewObj(obj);
+    code = Tcl_ZlibStreamGet(zstream, obj, buffersize);
+    if (code == TCL_OK) {
+	Tcl_SetObjResult(interp, obj);
+    } else {
+	TclDecrRefCount(obj);
+    }
+    return code;
+}
+
+static int
+ZlibStreamPutCmd(
+    ClientData cd,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_ZlibStream zstream = cd;
+    int index, flush = -1, i;
+    Tcl_Obj *compDictObj = NULL;
+    static const char *const put_options[] = {
+	"-dictionary", "-finalize", "-flush", "-fullflush", NULL
+    };
+    enum putOptions {
+	po_dictionary, po_finalize, po_flush, po_fullflush
+    };
+
+    for (i=2; i<objc-1; i++) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], put_options, "option", 0,
+		&index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+
+	switch ((enum putOptions) index) {
+	case po_flush: /* -flush */
+	    if (flush > -1) {
+		flush = -2;
+	    } else {
+		flush = Z_SYNC_FLUSH;
+	    }
+	    break;
+	case po_fullflush: /* -fullflush */
+	    if (flush > -1) {
+		flush = -2;
+	    } else {
+		flush = Z_FULL_FLUSH;
+	    }
+	    break;
+	case po_finalize: /* -finalize */
+	    if (flush > -1) {
+		flush = -2;
+	    } else {
+		flush = Z_FINISH;
+	    }
+	    break;
+	case po_dictionary:
+	    if (i == objc-2) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"\"-dictionary\" option must be followed by"
+			" compression dictionary bytes", -1));
+		Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
+		return TCL_ERROR;
+	    }
+	    compDictObj = objv[++i];
+	    break;
+	}
+	if (flush == -2) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "\"-flush\", \"-fullflush\" and \"-finalize\" options"
+		    " are mutually exclusive", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "ZIP", "EXCLUSIVE", NULL);
+	    return TCL_ERROR;
+	}
+    }
+    if (flush == -1) {
+	flush = 0;
+    }
+
+    /*
+     * Set the compression dictionary if requested.
+     */
+
+    if (compDictObj != NULL) {
+	int len;
+
+	(void) Tcl_GetByteArrayFromObj(compDictObj, &len);
+	if (len == 0) {
+	    compDictObj = NULL;
+	}
+	Tcl_ZlibStreamSetCompressionDictionary(zstream, compDictObj);
+    }
+
+    /*
+     * Send the data to the stream core, along with any flushing directive.
+     */
+
+    return Tcl_ZlibStreamPut(zstream, objv[objc-1], flush);
+}
+
+static int
+ZlibStreamHeaderCmd(
+    ClientData cd,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    ZlibStreamHandle *zshPtr = cd;
+    Tcl_Obj *resultObj;
+
+    if (objc != 2) {
+	Tcl_WrongNumArgs(interp, 2, objv, NULL);
+	return TCL_ERROR;
+    } else if (zshPtr->mode != TCL_ZLIB_STREAM_INFLATE
+	    || zshPtr->format != TCL_ZLIB_FORMAT_GZIP) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"only gunzip streams can produce header information", -1));
+	Tcl_SetErrorCode(interp, "TCL", "ZIP", "BADOP", NULL);
+	return TCL_ERROR;
+    }
+
+    TclNewObj(resultObj);
+    ExtractHeader(&zshPtr->gzHeaderPtr->header, resultObj);
+    Tcl_SetObjResult(interp, resultObj);
+    return TCL_OK;
+}
 
 /*
  *----------------------------------------------------------------------
@@ -2304,7 +2880,7 @@ ZlibTransformClose(
 	    if (e != Z_OK && e != Z_STREAM_END) {
 		/* TODO: is this the right way to do errors on close? */
 		if (!TclInThreadExit()) {
-		    ConvertError(interp, e);
+		    ConvertError(interp, e, cd->outStream.adler);
 		}
 		result = TCL_ERROR;
 		break;
@@ -2315,12 +2891,10 @@ ZlibTransformClose(
 		    /* TODO: is this the right way to do errors on close?
 		     * Note: when close is called from FinalizeIOSubsystem
 		     * then interp may be NULL */
-		    if (!TclInThreadExit()) {
-			if (interp) {
-			    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-				    "error while finalizing file: %s",
-				    Tcl_PosixError(interp)));
-			}
+		    if (!TclInThreadExit() && interp) {
+			Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+				"error while finalizing file: %s",
+				Tcl_PosixError(interp)));
 		    }
 		    result = TCL_ERROR;
 		    break;
@@ -2336,6 +2910,10 @@ ZlibTransformClose(
      * Release all memory.
      */
 
+    if (cd->compDictObj) {
+	Tcl_DecrRefCount(cd->compDictObj);
+	cd->compDictObj = NULL;
+    }
     Tcl_DStringFree(&cd->decompressed);
 
     if (cd->inBuffer) {
@@ -2406,7 +2984,7 @@ ZlibTransformInput(
 	 * reading over the border.
 	 */
 
-	readBytes = Tcl_ReadRaw(cd->parent, cd->inBuffer, 1);
+	readBytes = Tcl_ReadRaw(cd->parent, cd->inBuffer, cd->readAheadLimit);
 
 	/*
 	 * Three cases here:
@@ -2419,47 +2997,18 @@ ZlibTransformInput(
 	 */
 
 	if (readBytes < 0) {
-	    /*
-	     * Report errors to caller. The state of the seek system is
-	     * unchanged!
-	     */
-
-	    if ((Tcl_GetErrno() == EAGAIN) && (gotBytes > 0)) {
-		/*
-		 * EAGAIN is a special situation. If we had some data before
-		 * we report that instead of the request to re-try.
-		 */
 
+	    /* See ReflectInput() in tclIORTrans.c */
+	    if (Tcl_InputBlocked(cd->parent) && (gotBytes > 0)) {
 		return gotBytes;
 	    }
 
 	    *errorCodePtr = Tcl_GetErrno();
 	    return -1;
-	} else if (readBytes == 0) {
-	    /*
-	     * Check wether we hit on EOF in 'parent' or not. If not,
-	     * differentiate between blocking and non-blocking modes. In
-	     * non-blocking mode we ran temporarily out of data. Signal this
-	     * to the caller via EWOULDBLOCK and error return (-1). In the
-	     * other cases we simply return what we got and let the caller
-	     * wait for more. On the other hand, if we got an EOF we have to
-	     * convert and flush all waiting partial data.
-	     */
-
-	    if (!Tcl_Eof(cd->parent)) {
-		/*
-		 * The state of the seek system is unchanged!
-		 */
-
-		if ((gotBytes == 0) && (cd->flags & ASYNC)) {
-		    *errorCodePtr = EWOULDBLOCK;
-		    return -1;
-		}
-		return gotBytes;
-	    }
-
+	}
+	if (readBytes == 0) {
 	    /*
-	     * (Semi-)Eof in parent.
+	     * Eof in parent.
 	     *
 	     * Now this is a bit different. The partial data waiting is
 	     * converted and returned.
@@ -2477,12 +3026,6 @@ ZlibTransformInput(
 
 		return gotBytes;
 	    }
-
-	    /*
-	     * Reset eof, force caller to drain result buffer.
-	     */
-
-	    ((Channel *) cd->parent)->state->flags &= ~CHANNEL_EOF;
 	} else /* readBytes > 0 */ {
 	    /*
 	     * Transform the read chunk, which was not empty. Anything we get
@@ -2520,6 +3063,7 @@ ZlibTransformOutput(
     Tcl_DriverOutputProc *outProc =
 	    Tcl_ChannelOutputProc(Tcl_GetChannelType(cd->parent));
     int e, produced;
+    Tcl_Obj *errObj;
 
     if (cd->mode == TCL_ZLIB_STREAM_INFLATE) {
 	return outProc(Tcl_GetChannelInstanceData(cd->parent), buf, toWrite,
@@ -2535,7 +3079,7 @@ ZlibTransformOutput(
 	e = deflate(&cd->outStream, Z_NO_FLUSH);
 	produced = cd->outAllocated - cd->outStream.avail_out;
 
-	if (e == Z_OK && cd->outStream.avail_out > 0) {
+	if (e == Z_OK && produced > 0) {
 	    if (Tcl_WriteRaw(cd->parent, cd->outBuffer, produced) < 0) {
 		*errorCodePtr = Tcl_GetErrno();
 		return -1;
@@ -2543,14 +3087,19 @@ ZlibTransformOutput(
 	}
     } while (e == Z_OK && produced > 0 && cd->outStream.avail_in > 0);
 
-    if (e != Z_OK) {
-	Tcl_SetChannelError(cd->parent,
-		Tcl_NewStringObj(cd->outStream.msg, -1));
-	*errorCodePtr = EINVAL;
-	return -1;
+    if (e == Z_OK) {
+	return toWrite - cd->outStream.avail_in;
     }
 
-    return toWrite - cd->outStream.avail_in;
+    errObj = Tcl_NewListObj(0, NULL);
+    Tcl_ListObjAppendElement(NULL, errObj, Tcl_NewStringObj("-errorcode",-1));
+    Tcl_ListObjAppendElement(NULL, errObj,
+	    ConvertErrorToList(e, cd->outStream.adler));
+    Tcl_ListObjAppendElement(NULL, errObj,
+	    Tcl_NewStringObj(cd->outStream.msg, -1));
+    Tcl_SetChannelError(cd->parent, errObj);
+    *errorCodePtr = EINVAL;
+    return -1;
 }
 
 /*
@@ -2573,58 +3122,113 @@ ZlibTransformSetOption(			/* not used */
     ZlibChannelData *cd = instanceData;
     Tcl_DriverSetOptionProc *setOptionProc =
 	    Tcl_ChannelSetOptionProc(Tcl_GetChannelType(cd->parent));
-    static const char *chanOptions = "flush";
+    static const char *compressChanOptions = "dictionary flush";
+    static const char *gzipChanOptions = "flush";
+    static const char *decompressChanOptions = "dictionary limit";
+    static const char *gunzipChanOptions = "flush limit";
     int haveFlushOpt = (cd->mode == TCL_ZLIB_STREAM_DEFLATE);
 
-    if (haveFlushOpt && optionName && strcmp(optionName, "-flush") == 0) {
-	int flushType;
+    if (optionName && (strcmp(optionName, "-dictionary") == 0)
+	    && (cd->format != TCL_ZLIB_FORMAT_GZIP)) {
+	Tcl_Obj *compDictObj;
+	int code;
 
-	if (value[0] == 'f' && strcmp(value, "full") == 0) {
-	    flushType = Z_FULL_FLUSH;
-	} else if (value[0] == 's' && strcmp(value, "sync") == 0) {
-	    flushType = Z_SYNC_FLUSH;
-	} else {
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "unknown -flush type \"%s\": must be full or sync",
-		    value));
-	    Tcl_SetErrorCode(interp, "TCL", "VALUE", "FLUSH", NULL);
-	    return TCL_ERROR;
+	TclNewStringObj(compDictObj, value, strlen(value));
+	Tcl_IncrRefCount(compDictObj);
+	(void) Tcl_GetByteArrayFromObj(compDictObj, NULL);
+	if (cd->compDictObj) {
+	    TclDecrRefCount(cd->compDictObj);
+	}
+	cd->compDictObj = compDictObj;
+	code = Z_OK;
+	if (cd->mode == TCL_ZLIB_STREAM_DEFLATE) {
+	    code = SetDeflateDictionary(&cd->outStream, compDictObj);
+	    if (code != Z_OK) {
+		ConvertError(interp, code, cd->outStream.adler);
+		return TCL_ERROR;
+	    }
+	} else if (cd->format == TCL_ZLIB_FORMAT_RAW) {
+	    code = SetInflateDictionary(&cd->inStream, compDictObj);
+	    if (code != Z_OK) {
+		ConvertError(interp, code, cd->inStream.adler);
+		return TCL_ERROR;
+	    }
 	}
+	return TCL_OK;
+    }
 
-	/*
-	 * Try to actually do the flush now.
-	 */
+    if (haveFlushOpt) {
+	if (optionName && strcmp(optionName, "-flush") == 0) {
+	    int flushType;
 
-	cd->outStream.avail_in = 0;
-	while (1) {
-	    int e;
+	    if (value[0] == 'f' && strcmp(value, "full") == 0) {
+		flushType = Z_FULL_FLUSH;
+	    } else if (value[0] == 's' && strcmp(value, "sync") == 0) {
+		flushType = Z_SYNC_FLUSH;
+	    } else {
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"unknown -flush type \"%s\": must be full or sync",
+			value));
+		Tcl_SetErrorCode(interp, "TCL", "VALUE", "FLUSH", NULL);
+		return TCL_ERROR;
+	    }
 
-	    cd->outStream.next_out = (Bytef *) cd->outBuffer;
-	    cd->outStream.avail_out = cd->outAllocated;
+	    /*
+	     * Try to actually do the flush now.
+	     */
 
-	    e = deflate(&cd->outStream, flushType);
-	    if (e == Z_BUF_ERROR) {
-		break;
-	    } else if (e != Z_OK) {
-		ConvertError(interp, e);
-		return TCL_ERROR;
-	    } else if (cd->outStream.avail_out == 0) {
-		break;
+	    cd->outStream.avail_in = 0;
+	    while (1) {
+		int e;
+
+		cd->outStream.next_out = (Bytef *) cd->outBuffer;
+		cd->outStream.avail_out = cd->outAllocated;
+
+		e = deflate(&cd->outStream, flushType);
+		if (e == Z_BUF_ERROR) {
+		    break;
+		} else if (e != Z_OK) {
+		    ConvertError(interp, e, cd->outStream.adler);
+		    return TCL_ERROR;
+		} else if (cd->outStream.avail_out == 0) {
+		    break;
+		}
+
+		if (Tcl_WriteRaw(cd->parent, cd->outBuffer,
+			cd->outStream.next_out - (Bytef *) cd->outBuffer)<0) {
+		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			    "problem flushing channel: %s",
+			    Tcl_PosixError(interp)));
+		    return TCL_ERROR;
+		}
 	    }
+	    return TCL_OK;
+	}
+    } else {
+	if (optionName && strcmp(optionName, "-limit") == 0) {
+	    int newLimit;
 
-	    if (Tcl_WriteRaw(cd->parent, cd->outBuffer,
-		    cd->outStream.next_out - (Bytef *) cd->outBuffer) < 0) {
-		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-			"problem flushing channel: %s",
-			Tcl_PosixError(interp)));
+	    if (Tcl_GetInt(interp, value, &newLimit) != TCL_OK) {
+		return TCL_ERROR;
+	    } else if (newLimit < 1 || newLimit > MAX_BUFFER_SIZE) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"-limit must be between 1 and 65536", -1));
+		Tcl_SetErrorCode(interp, "TCL", "VALUE", "READLIMIT", NULL);
 		return TCL_ERROR;
 	    }
 	}
-	return TCL_OK;
     }
 
     if (setOptionProc == NULL) {
-	return Tcl_BadChannelOption(interp, optionName, chanOptions);
+	if (cd->format == TCL_ZLIB_FORMAT_GZIP) {
+	    return Tcl_BadChannelOption(interp, optionName,
+		    (cd->mode == TCL_ZLIB_STREAM_DEFLATE)
+		    ? gzipChanOptions : gunzipChanOptions);
+	} else {
+	    return Tcl_BadChannelOption(interp, optionName,
+		    (cd->mode == TCL_ZLIB_STREAM_DEFLATE)
+		    ? compressChanOptions : decompressChanOptions);
+	}
     }
 
     /*
@@ -2656,7 +3260,10 @@ ZlibTransformGetOption(
     ZlibChannelData *cd = instanceData;
     Tcl_DriverGetOptionProc *getOptionProc =
 	    Tcl_ChannelGetOptionProc(Tcl_GetChannelType(cd->parent));
-    static const char *chanOptions = "checksum header";
+    static const char *compressChanOptions = "checksum dictionary";
+    static const char *gzipChanOptions = "checksum";
+    static const char *decompressChanOptions = "checksum dictionary limit";
+    static const char *gunzipChanOptions = "checksum header limit";
 
     /*
      * The "crc" option reports the current CRC (calculated with the Adler32
@@ -2684,6 +3291,28 @@ ZlibTransformGetOption(
 	}
     }
 
+    if ((cd->format != TCL_ZLIB_FORMAT_GZIP) &&
+	    (optionName == NULL || strcmp(optionName, "-dictionary") == 0)) {
+	/*
+	 * Embedded NUL bytes are ok; they'll be C080-encoded.
+	 */
+
+	if (optionName == NULL) {
+	    Tcl_DStringAppendElement(dsPtr, "-dictionary");
+	    if (cd->compDictObj) {
+		Tcl_DStringAppendElement(dsPtr,
+			Tcl_GetString(cd->compDictObj));
+	    } else {
+		Tcl_DStringAppendElement(dsPtr, "");
+	    }
+	} else {
+	    int len;
+	    const char *str = Tcl_GetStringFromObj(cd->compDictObj, &len);
+
+	    Tcl_DStringAppend(dsPtr, str, len);
+	}
+    }
+
     /*
      * The "header" option, which is only valid on inflating gzip channels,
      * reports the header that has been read from the start of the stream.
@@ -2716,7 +3345,15 @@ ZlibTransformGetOption(
     if (optionName == NULL) {
 	return TCL_OK;
     }
-    return Tcl_BadChannelOption(interp, optionName, chanOptions);
+    if (cd->format == TCL_ZLIB_FORMAT_GZIP) {
+	return Tcl_BadChannelOption(interp, optionName,
+		(cd->mode == TCL_ZLIB_STREAM_DEFLATE)
+		? gzipChanOptions : gunzipChanOptions);
+    } else {
+	return Tcl_BadChannelOption(interp, optionName,
+		(cd->mode == TCL_ZLIB_STREAM_DEFLATE)
+		? compressChanOptions : decompressChanOptions);
+    }
 }
 
 /*
@@ -2861,10 +3498,15 @@ ZlibStackChannelTransform(
 				 * decompressing transforms. */
     int level,			/* What compression level to use. Ignored for
 				 * decompressing transforms. */
+    int limit,			/* The limit on the number of bytes to read
+				 * ahead; always at least 1. */
     Tcl_Channel channel,	/* The channel to attach to. */
-    Tcl_Obj *gzipHeaderDictPtr)	/* A description of header to use, or NULL to
+    Tcl_Obj *gzipHeaderDictPtr,	/* A description of header to use, or NULL to
 				 * use a default. Ignored if not compressing
 				 * to produce gzip-format data. */
+    Tcl_Obj *compDictObj)	/* Byte-array object containing compression
+				 * dictionary (not dictObj!) to use if
+				 * necessary. */
 {
     ZlibChannelData *cd = ckalloc(sizeof(ZlibChannelData));
     Tcl_Channel chan;
@@ -2877,15 +3519,15 @@ ZlibStackChannelTransform(
 
     memset(cd, 0, sizeof(ZlibChannelData));
     cd->mode = mode;
+    cd->format = format;
+    cd->readAheadLimit = limit;
 
     if (format == TCL_ZLIB_FORMAT_GZIP || format == TCL_ZLIB_FORMAT_AUTO) {
 	if (mode == TCL_ZLIB_STREAM_DEFLATE) {
 	    if (gzipHeaderDictPtr) {
-		int dummy = 0;
-
 		cd->flags |= OUT_HEADER;
 		if (GenerateHeader(interp, gzipHeaderDictPtr, &cd->outHeader,
-			&dummy) != TCL_OK) {
+			NULL) != TCL_OK) {
 		    goto error;
 		}
 	    }
@@ -2900,6 +3542,12 @@ ZlibStackChannelTransform(
 	}
     }
 
+    if (compDictObj != NULL) {
+	cd->compDictObj = Tcl_DuplicateObj(compDictObj);
+	Tcl_IncrRefCount(cd->compDictObj);
+	Tcl_GetByteArrayFromObj(cd->compDictObj, NULL);
+    }
+
     if (format == TCL_ZLIB_FORMAT_RAW) {
 	wbits = WBITS_RAW;
     } else if (format == TCL_ZLIB_FORMAT_ZLIB) {
@@ -2929,6 +3577,14 @@ ZlibStackChannelTransform(
 		goto error;
 	    }
 	}
+	if (cd->format == TCL_ZLIB_FORMAT_RAW && cd->compDictObj) {
+	    e = SetInflateDictionary(&cd->inStream, cd->compDictObj);
+	    if (e != Z_OK) {
+		goto error;
+	    }
+	    TclDecrRefCount(cd->compDictObj);
+	    cd->compDictObj = NULL;
+	}
     } else {
 	e = deflateInit2(&cd->outStream, level, Z_DEFLATED, wbits,
 		MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY);
@@ -2943,6 +3599,12 @@ ZlibStackChannelTransform(
 		goto error;
 	    }
 	}
+	if (cd->compDictObj) {
+	    e = SetDeflateDictionary(&cd->outStream, cd->compDictObj);
+	    if (e != Z_OK) {
+		goto error;
+	    }
+	}
     }
 
     Tcl_DStringInit(&cd->decompressed);
@@ -2966,6 +3628,9 @@ ZlibStackChannelTransform(
 	ckfree(cd->outBuffer);
 	deflateEnd(&cd->outStream);
     }
+    if (cd->compDictObj) {
+	Tcl_DecrRefCount(cd->compDictObj);
+    }
     ckfree(cd);
     return NULL;
 }
@@ -3055,6 +3720,7 @@ ResultGenerate(
 #define MAXBUF	1024
     unsigned char buf[MAXBUF];
     int e, written;
+    Tcl_Obj *errObj;
 
     cd->inStream.next_in = (Bytef *) cd->inBuffer;
     cd->inStream.avail_in = n;
@@ -3064,6 +3730,18 @@ ResultGenerate(
 	cd->inStream.avail_out = MAXBUF;
 
 	e = inflate(&cd->inStream, flush);
+	if (e == Z_NEED_DICT && cd->compDictObj) {
+	    e = SetInflateDictionary(&cd->inStream, cd->compDictObj);
+	    if (e == Z_OK) {
+		/*
+		 * A repetition of Z_NEED_DICT is just an error.
+		 */
+
+		cd->inStream.next_out = (Bytef *) buf;
+		cd->inStream.avail_out = MAXBUF;
+		e = inflate(&cd->inStream, flush);
+	    }
+	}
 
 	/*
 	 * avail_out is now the left over space in the output.  Therefore
@@ -3095,13 +3773,7 @@ ResultGenerate(
 	 */
 
 	if ((e != Z_OK) && (e != Z_BUF_ERROR)) {
-	    Tcl_Obj *errObj = Tcl_NewListObj(0, NULL);
-
-	    Tcl_ListObjAppendElement(NULL, errObj,
-		    Tcl_NewStringObj(cd->inStream.msg, -1));
-	    Tcl_SetChannelError(cd->parent, errObj);
-	    *errorCodePtr = EINVAL;
-	    return TCL_ERROR;
+	    goto handleError;
 	}
 
 	/*
@@ -3112,6 +3784,17 @@ ResultGenerate(
 	    return TCL_OK;
 	}
     }
+
+  handleError:
+    errObj = Tcl_NewListObj(0, NULL);
+    Tcl_ListObjAppendElement(NULL, errObj, Tcl_NewStringObj("-errorcode",-1));
+    Tcl_ListObjAppendElement(NULL, errObj,
+	    ConvertErrorToList(e, cd->inStream.adler));
+    Tcl_ListObjAppendElement(NULL, errObj,
+	    Tcl_NewStringObj(cd->inStream.msg, -1));
+    Tcl_SetChannelError(cd->parent, errObj);
+    *errorCodePtr = EINVAL;
+    return TCL_ERROR;
 }
 
 /*
@@ -3124,6 +3807,8 @@ int
 TclZlibInit(
     Tcl_Interp *interp)
 {
+    Tcl_Config cfg[2];
+
     /*
      * This does two things. It creates a counter used in the creation of
      * stream commands, and it creates the namespace that will contain those
@@ -3137,6 +3822,23 @@ TclZlibInit(
      */
 
     Tcl_CreateObjCommand(interp, "zlib", ZlibCmd, 0, 0);
+
+    /*
+     * Store the underlying configuration information.
+     *
+     * TODO: Describe whether we're using the system version of the library or
+     * a compatibility version built into Tcl?
+     */
+
+    cfg[0].key = "zlibVersion";
+    cfg[0].value = zlibVersion();
+    cfg[1].key = NULL;
+    Tcl_RegisterConfig(interp, "zlib", cfg, "iso8859-1");
+
+    /*
+     * Formally provide the package as a Tcl built-in.
+     */
+
     return Tcl_PkgProvide(interp, "zlib", TCL_ZLIB_VERSION);
 }
 
@@ -3157,8 +3859,10 @@ Tcl_ZlibStreamInit(
     Tcl_Obj *dictObj,
     Tcl_ZlibStream *zshandle)
 {
-    Tcl_SetObjResult(interp, Tcl_NewStringObj("unimplemented", -1));
-    Tcl_SetErrorCode(interp, "TCL", "UNIMPLEMENTED", NULL);
+    if (interp) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj("unimplemented", -1));
+	Tcl_SetErrorCode(interp, "TCL", "UNIMPLEMENTED", NULL);
+    }
     return TCL_ERROR;
 }
 
@@ -3223,8 +3927,10 @@ Tcl_ZlibDeflate(
     int level,
     Tcl_Obj *gzipHeaderDictObj)
 {
-    Tcl_SetObjResult(interp, Tcl_NewStringObj("unimplemented", -1));
-    Tcl_SetErrorCode(interp, "TCL", "UNIMPLEMENTED", NULL);
+    if (interp) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj("unimplemented", -1));
+	Tcl_SetErrorCode(interp, "TCL", "UNIMPLEMENTED", NULL);
+    }
     return TCL_ERROR;
 }
 
@@ -3236,8 +3942,10 @@ Tcl_ZlibInflate(
     int bufferSize,
     Tcl_Obj *gzipHeaderDictObj)
 {
-    Tcl_SetObjResult(interp, Tcl_NewStringObj("unimplemented", -1));
-    Tcl_SetErrorCode(interp, "TCL", "UNIMPLEMENTED", NULL);
+    if (interp) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj("unimplemented", -1));
+	Tcl_SetErrorCode(interp, "TCL", "UNIMPLEMENTED", NULL);
+    }
     return TCL_ERROR;
 }
 
@@ -3258,6 +3966,14 @@ Tcl_ZlibAdler32(
 {
     return 0;
 }
+
+void
+Tcl_ZlibStreamSetCompressionDictionary(
+    Tcl_ZlibStream zshandle,
+    Tcl_Obj *compressionDictionaryObj)
+{
+    /* Do nothing. */
+}
 #endif /* HAVE_ZLIB */
 
 /*
diff --git a/library/auto.tcl b/library/auto.tcl
index 4bd860d..02edcc4 100644
--- a/library/auto.tcl
+++ b/library/auto.tcl
@@ -20,8 +20,9 @@
 # None.
 
 proc auto_reset {} {
-    if {[array exists ::auto_index]} {
-	foreach cmdName [array names ::auto_index] {
+    global auto_execs auto_index auto_path
+    if {[array exists auto_index]} {
+	foreach cmdName [array names auto_index] {
 	    set fqcn [namespace which $cmdName]
 	    if {$fqcn eq ""} {
 		continue
@@ -29,11 +30,11 @@ proc auto_reset {} {
 	    rename $fqcn {}
 	}
     }
-    unset -nocomplain ::auto_execs ::auto_index ::tcl::auto_oldpath
-    if {[catch {llength $::auto_path}]} {
-	set ::auto_path [list [info library]]
-    } elseif {[info library] ni $::auto_path} {
-	lappend ::auto_path [info library]
+    unset -nocomplain auto_execs auto_index ::tcl::auto_oldpath
+    if {[catch {llength $auto_path}]} {
+	set auto_path [list [info library]]
+    } elseif {[info library] ni $auto_path} {
+	lappend auto_path [info library]
     }
 }
 
@@ -53,7 +54,7 @@ proc auto_reset {} {
 
 proc tcl_findLibrary {basename version patch initScript enVarName varName} {
     upvar #0 $varName the_library
-    global env
+    global auto_path env tcl_platform
 
     set dirs {}
     set errors {}
@@ -83,12 +84,10 @@ proc tcl_findLibrary {basename version patch initScript enVarName varName} {
 	# 3. Relative to auto_path directories.  This checks relative to the
 	# Tcl library as well as allowing loading of libraries added to the
 	# auto_path that is not relative to the core library or binary paths.
-	foreach d $::auto_path {
+	foreach d $auto_path {
 	    lappend dirs [file join $d $basename$version]
-	    if {
-		$::tcl_platform(platform) eq "unix"
-		&& $::tcl_platform(os) eq "Darwin"
-	    } then {
+	    if {$tcl_platform(platform) eq "unix"
+		    && $tcl_platform(os) eq "Darwin"} {
 		# 4. On MacOSX, check the Resources/Scripts subdir too
 		lappend dirs [file join $d $basename$version Resources Scripts]
 	    }
@@ -514,6 +513,32 @@ proc auto_mkindex_parser::fullname {name} {
     return [string map [list \0 \$] $name]
 }
 
+# auto_mkindex_parser::indexEntry --
+#
+# Used by commands like "proc" within the auto_mkindex parser to add a
+# correctly-quoted entry to the index. This is shared code so it is done
+# *right*, in one place.
+#
+# Arguments:
+# name -		Name that is being added to index.
+
+proc auto_mkindex_parser::indexEntry {name} {
+    variable index
+    variable scriptFile
+
+    # We convert all metacharacters to their backslashed form, and pre-split
+    # the file name that we know about (which will be a proper list, and so
+    # correctly quoted).
+
+    set name [string range [list \}[fullname $name]] 2 end]
+    set filenameParts [file split $scriptFile]
+
+    append index [format \
+	    {set auto_index(%s) [list source [file join $dir %s]]%s} \
+	    $name $filenameParts \n]
+    return
+}
+
 if {[llength $::auto_mkindex_parser::initCommands]} {
     return
 }
@@ -525,15 +550,7 @@ if {[llength $::auto_mkindex_parser::initCommands]} {
 # Adds an entry to the auto index list for the given procedure name.
 
 auto_mkindex_parser::command proc {name args} {
-    variable index
-    variable scriptFile
-    # Do some fancy reformatting on the "source" call to handle platform
-    # differences with respect to pathnames.  Use format just so that the
-    # command is a little easier to read (otherwise it'd be full of
-    # backslashed dollar signs, etc.
-    append index [list set auto_index([fullname $name])] \
-	    [format { [list source [file join $dir %s]]} \
-	    [file split $scriptFile]] "\n"
+    indexEntry $name
 }
 
 # Conditionally add support for Tcl byte code files.  There are some tricky
@@ -560,14 +577,7 @@ auto_mkindex_parser::hook {
 	# procedure name.
 
 	auto_mkindex_parser::commandInit tbcload::bcproc {name args} {
-	    variable index
-	    variable scriptFile
-	    # Do some nice reformatting of the "source" call, to get around
-	    # path differences on different platforms.  We use the format
-	    # command just so that the code is a little easier to read.
-	    append index [list set auto_index([fullname $name])] \
-		    [format { [list source [file join $dir %s]]} \
-		    [file split $scriptFile]] "\n"
+	    indexEntry $name
 	}
     }
 }
@@ -606,6 +616,35 @@ auto_mkindex_parser::command namespace {op args} {
             }
             catch {$parser eval "_%@namespace import $args"}
         }
+	ensemble {
+	    variable parser
+	    variable contextStack
+	    if {[lindex $args 0] eq "create"} {
+		set name ::[join [lreverse $contextStack] ::]
+		catch {
+		    set name [dict get [lrange $args 1 end] -command]
+		    if {![string match ::* $name]} {
+			set name ::[join [lreverse $contextStack] ::]$name
+		    }
+		    regsub -all ::+ $name :: name
+		}
+		# create artifical proc to force an entry in the tclIndex
+		$parser eval [list ::proc $name {} {}]
+	    }
+	}
+    }
+}
+
+# AUTO MKINDEX:  oo::class create name ?definition?
+# Adds an entry to the auto index list for the given class name.
+auto_mkindex_parser::command oo::class {op name {body ""}} {
+    if {$op eq "create"} {
+	indexEntry $name
+    }
+}
+auto_mkindex_parser::command class {op name {body ""}} {
+    if {$op eq "create"} {
+	indexEntry $name
     }
 }
 
diff --git a/library/clock.tcl b/library/clock.tcl
index 38394d2..982395a 100644..100755
--- a/library/clock.tcl
+++ b/library/clock.tcl
@@ -2,9 +2,9 @@
 #
 # clock.tcl --
 #
-#	This file implements the portions of the [clock] ensemble that
-#	are coded in Tcl.  Refer to the users' manual to see the description
-#	of the [clock] command and its subcommands.
+#	This file implements the portions of the [clock] ensemble that are
+#	coded in Tcl.  Refer to the users' manual to see the description of
+#	the [clock] command and its subcommands.
 #
 #
 #----------------------------------------------------------------------
@@ -15,8 +15,8 @@
 #
 #----------------------------------------------------------------------
 
-# We must have message catalogs that support the root locale, and
-# we need access to the Registry on Windows systems.
+# We must have message catalogs that support the root locale, and we need
+# access to the Registry on Windows systems.
 
 uplevel \#0 {
     package require msgcat 1.6
@@ -27,9 +27,8 @@ uplevel \#0 {
     }
 }
 
-# Put the library directory into the namespace for the ensemble
-# so that the library code can find message catalogs and time zone
-# definition files.
+# Put the library directory into the namespace for the ensemble so that the
+# library code can find message catalogs and time zone definition files.
 
 namespace eval ::tcl::clock \
     [list variable LibDir [file dirname [info script]]]
@@ -40,10 +39,10 @@ namespace eval ::tcl::clock \
 #
 #	Manipulate times.
 #
-# The 'clock' command manipulates time.  Refer to the user documentation
-# for the available subcommands and what they do.
+# The 'clock' command manipulates time.  Refer to the user documentation for
+# the available subcommands and what they do.
 #
-#----------------------------------------------------------------------	
+#----------------------------------------------------------------------
 
 namespace eval ::tcl::clock {
 
@@ -76,11 +75,11 @@ namespace eval ::tcl::clock {
 # Side effects:
 #	Namespace variable in the 'clock' subsystem are initialized.
 #
-# The '::tcl::clock::Initialize' procedure initializes the namespace
-# variables and root locale message catalog for the 'clock' subsystem.
-# It is broken into a procedure rather than simply evaluated as a script
-# so that it will be able to use local variables, avoiding the dangers
-# of 'creative writing' as in Bug 1185933.
+# The '::tcl::clock::Initialize' procedure initializes the namespace variables
+# and root locale message catalog for the 'clock' subsystem.  It is broken
+# into a procedure rather than simply evaluated as a script so that it will be
+# able to use local variables, avoiding the dangers of 'creative writing' as
+# in Bug 1185933.
 #
 #----------------------------------------------------------------------
 
@@ -176,8 +175,8 @@ proc ::tcl::clock::Initialize {} {
 
     ::msgcat::mcset fr GREGORIAN_CHANGE_DATE 2299227
 
-    # For Belgium, we follow Southern Netherlands; Liege Diocese
-    # changed several weeks later.
+    # For Belgium, we follow Southern Netherlands; Liege Diocese changed
+    # several weeks later.
 
     ::msgcat::mcset fr_BE GREGORIAN_CHANGE_DATE 2299238
     ::msgcat::mcset nl_BE GREGORIAN_CHANGE_DATE 2299238
@@ -193,13 +192,13 @@ proc ::tcl::clock::Initialize {} {
     # Germany, Norway, Denmark (Catholic Germany changed earlier)
 
     ::msgcat::mcset de_DE GREGORIAN_CHANGE_DATE 2342032
-    ::msgcat::mcset nb GREGORIAN_CHANGE_DATE 2342032    
+    ::msgcat::mcset nb GREGORIAN_CHANGE_DATE 2342032
     ::msgcat::mcset nn GREGORIAN_CHANGE_DATE 2342032
     ::msgcat::mcset no GREGORIAN_CHANGE_DATE 2342032
     ::msgcat::mcset da GREGORIAN_CHANGE_DATE 2342032
 
-    # Holland (Brabant, Gelderland, Flanders, Friesland, etc. changed
-    # at various times)
+    # Holland (Brabant, Gelderland, Flanders, Friesland, etc. changed at
+    # various times)
 
     ::msgcat::mcset nl GREGORIAN_CHANGE_DATE 2342165
 
@@ -221,23 +220,23 @@ proc ::tcl::clock::Initialize {} {
 
     ::msgcat::mcset ru GREGORIAN_CHANGE_DATE 2421639
 
-    # Romania (Transylvania changed earler - perhaps de_RO should show
-    # the earlier date?)
+    # Romania (Transylvania changed earler - perhaps de_RO should show the
+    # earlier date?)
 
     ::msgcat::mcset ro GREGORIAN_CHANGE_DATE 2422063
 
     # Greece
 
     ::msgcat::mcset el GREGORIAN_CHANGE_DATE 2423480
-    
+
     #------------------------------------------------------------------
     #
     #				CONSTANTS
     #
     #------------------------------------------------------------------
 
-    # Paths at which binary time zone data for the Olson libraries
-    # are known to reside on various operating systems
+    # Paths at which binary time zone data for the Olson libraries are known
+    # to reside on various operating systems
 
     variable ZoneinfoPaths {}
     foreach path {
@@ -285,10 +284,10 @@ proc ::tcl::clock::Initialize {} {
 
     variable FEB_28	       58
 
-    # Translation table to map Windows TZI onto cities, so that
-    # the Olson rules can apply.  In some cases the mapping is ambiguous,
-    # so it's wise to specify $::env(TCL_TZ) rather than simply depending
-    # on the system time zone.
+    # Translation table to map Windows TZI onto cities, so that the Olson
+    # rules can apply.  In some cases the mapping is ambiguous, so it's wise
+    # to specify $::env(TCL_TZ) rather than simply depending on the system
+    # time zone.
 
     # The keys are long lists of values obtained from the time zone
     # information in the Registry.  In order, the list elements are:
@@ -299,10 +298,10 @@ proc ::tcl::clock::Initialize {} {
     #   DaylightDate.wYear DaylightDate.wMonth DaylightDate.wDayOfWeek
     #   DaylightDate.wDay DaylightDate.wHour DaylightDate.wMinute
     #   DaylightDate.wSecond DaylightDate.wMilliseconds
-    # The values are the names of time zones where those rules apply.
-    # There is considerable ambiguity in certain zones; an attempt has
-    # been made to make a reasonable guess, but this table needs to be
-    # taken with a grain of salt.
+    # The values are the names of time zones where those rules apply.  There
+    # is considerable ambiguity in certain zones; an attempt has been made to
+    # make a reasonable guess, but this table needs to be taken with a grain
+    # of salt.
 
     variable WinZoneInfo [dict create {*}{
 	{-43200 0 3600 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}  :Pacific/Kwajalein
@@ -328,7 +327,7 @@ proc ::tcl::clock::Initialize {} {
 	{-10800 0 3600 0 2 0 2 2 0 0 0 0 10 0 3 2 0 0 0} :America/Sao_Paulo
 	{-10800 0 3600 0 10 0 5 2 0 0 0 0 4 0 1 2 0 0 0} :America/Godthab
 	{-10800 0 3600 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}  :America/Buenos_Aires
-        {-10800 0 3600 0 2 0 5 2 0 0 0 0 11 0 1 2 0 0 0} :America/Brasilia
+        {-10800 0 3600 0 2 0 5 2 0 0 0 0 11 0 1 2 0 0 0} :America/Bahia
         {-10800 0 3600 0 3 0 2 2 0 0 0 0 10 0 1 2 0 0 0} :America/Montevideo
 	{-7200 0 3600 0 9 0 5 2 0 0 0 0 3 0 5 2 0 0 0}   :America/Noronha
 	{-3600 0 3600 0 10 0 5 3 0 0 0 0 3 0 5 2 0 0 0}  :Atlantic/Azores
@@ -381,10 +380,10 @@ proc ::tcl::clock::Initialize {} {
 	{46800 0 3600 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}   :Pacific/Tongatapu
     }]
 
-    # Groups of fields that specify the date, priorities, and 
-    # code bursts that determine Julian Day Number given those groups.
-    # The code in [clock scan] will choose the highest priority
-    # (lowest numbered) set of fields that determines the date.
+    # Groups of fields that specify the date, priorities, and code bursts that
+    # determine Julian Day Number given those groups.  The code in [clock
+    # scan] will choose the highest priority (lowest numbered) set of fields
+    # that determines the date.
 
     variable DateParseActions {
 
@@ -488,8 +487,8 @@ proc ::tcl::clock::Initialize {} {
 	}
     }
 
-    # Groups of fields that specify time of day, priorities,
-    # and code that processes them
+    # Groups of fields that specify time of day, priorities, and code that
+    # processes them
 
     variable TimeParseActions {
 
@@ -650,11 +649,10 @@ proc ::tcl::clock::Initialize {} {
 #
 # clock format --
 #
-#	Formats a count of seconds since the Posix Epoch as a time
-#	of day.
+#	Formats a count of seconds since the Posix Epoch as a time of day.
 #
-# The 'clock format' command formats times of day for output.
-# Refer to the user documentation to see what it does.
+# The 'clock format' command formats times of day for output.  Refer to the
+# user documentation to see what it does.
 #
 #----------------------------------------------------------------------
 
@@ -668,7 +666,7 @@ proc ::tcl::clock::format { args } {
     set clockval [lindex $args 0]
 
     # Get the data for time changes in the given zone
-    
+
     if {$timezone eq ""} {
 	set timezone [GetSystemTimeZone]
     }
@@ -678,11 +676,11 @@ proc ::tcl::clock::format { args } {
 	    return -options $opts $retval
 	}
     }
-    
-    # Build a procedure to format the result. Cache the built procedure's
-    # name in the 'FormatProc' array to avoid losing its internal
-    # representation, which contains the name resolution.
-    
+
+    # Build a procedure to format the result. Cache the built procedure's name
+    # in the 'FormatProc' array to avoid losing its internal representation,
+    # which contains the name resolution.
+
     set procName formatproc'$format'$locale
     set procName [namespace current]::[string map {: {\:} \\ {\\}} $procName]
     if {[info exists FormatProc($procName)]} {
@@ -691,7 +689,7 @@ proc ::tcl::clock::format { args } {
 	set FormatProc($procName) \
 	    [ParseClockFormatFormat $procName $format $locale]
     }
-    
+
     return [$procName $clockval $timezone]
 
 }
@@ -718,33 +716,20 @@ proc ::tcl::clock::ParseClockFormatFormat {procName format locale} {
     }
 
     # Map away the locale-dependent composite format groups
-    
+
     EnterLocale $locale
 
     # Change locale if a fresh locale has been given on the command line.
 
-    set status [catch {
-
-	ParseClockFormatFormat2 $format $locale $procName
-
-    } result opts]
-
-    # Return either the error or the proc name
-
-    if { $status == 1 } {
-	if { [lindex [dict get $opts -errorcode] 0] eq {clock} } {
-	    return -code error $result
-	} else {
-	    return -options $opts $result
-	}
-    } else {
-	return $result
+    try {
+	return [ParseClockFormatFormat2 $format $locale $procName]
+    } trap CLOCK {result opts} {
+	dict unset opts -errorinfo
+	return -options $opts $result
     }
-
 }
 
 proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
-
     set didLocaleEra 0
     set didLocaleNumerals 0
     set preFormatCode \
@@ -759,7 +744,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
     set formatString {}
     set substituents {}
     set state {}
-	
+
     set format [LocalizeFormat $locale $format]
 
     foreach char [split $format {}] {
@@ -786,7 +771,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 				 { [lindex @DAYS_OF_WEEK_ABBREV@ \
 					[expr {[dict get $date dayOfWeek] \
 						   % 7}]]}]
-		    }			 
+		    }
 		    A {			# Day of week, spelt out.
 			append formatString %s
 			append substituents \
@@ -887,7 +872,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 		    k {			# Hour (0-23), no leading zero
 			append formatString %2d
 			append substituents \
-			    { [expr { [dict get $date localSeconds] 
+			    { [expr { [dict get $date localSeconds]
 				      / 3600
 				      % 24 }]}
 		    }
@@ -908,7 +893,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 		    M {			# Minute of the hour, leading zero
 			append formatString %02d
 			append substituents \
-			    { [expr { [dict get $date localSeconds] 
+			    { [expr { [dict get $date localSeconds]
 				      / 60
 				      % 60 }]}
 		    }
@@ -949,7 +934,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 			    { [expr {(([dict get $date localSeconds]
 				       % 86400) < 43200) ?
 				     $am : $pm}]}
-			
+
 		    }
 		    Q {			# Hi, Jeff!
 			append formatString %s
@@ -959,11 +944,11 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 			append formatString %s
 			append substituents { [dict get $date seconds]}
 		    }
-		    S {			# Second of the minute, with 
+		    S {			# Second of the minute, with
 			# leading zero
 			append formatString %02d
 			append substituents \
-			    { [expr { [dict get $date localSeconds] 
+			    { [expr { [dict get $date localSeconds]
 				      % 60 }]}
 		    }
 		    t {			# A literal tab character
@@ -984,7 +969,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 			    }
 			    incr dow
 			    set UweekNumber \
-				[expr { ( [dict get $date dayOfYear] 
+				[expr { ( [dict get $date dayOfYear]
 					  - $dow + 7 )
 					/ 7 }]
 			}
@@ -1007,7 +992,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 			    set WweekNumber \
 				[expr { ( [dict get $date dayOfYear]
 					  - [dict get $date dayOfWeek]
-					  + 7 ) 
+					  + 7 )
 					/ 7 }]
 			}
 			append formatString %02d
@@ -1076,7 +1061,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 	    percentO {			# Character following %O
 		set state {}
 		switch -exact -- $char {
-		    d - e {		# Day of the month in alternative 
+		    d - e {		# Day of the month in alternative
 			# numerals
 			append formatString %s
 			append substituents \
@@ -1088,7 +1073,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 			append formatString %s
 			append substituents \
 			    { [lindex $localeNumerals \
-				   [expr { [dict get $date localSeconds] 
+				   [expr { [dict get $date localSeconds]
 					   / 3600
 					   % 24 }]]}
 		    }
@@ -1114,7 +1099,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 			append formatString %s
 			append substituents \
 			    { [lindex $localeNumerals \
-				   [expr { [dict get $date localSeconds] 
+				   [expr { [dict get $date localSeconds]
 					   / 60
 					   % 60 }]]}
 		    }
@@ -1123,7 +1108,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 			append formatString %s
 			append substituents \
 			    { [lindex $localeNumerals \
-				   [expr { [dict get $date localSeconds] 
+				   [expr { [dict get $date localSeconds]
 					   % 60 }]]}
 		    }
 		    u {			# Day of the week (Monday=1,Sunday=7)
@@ -1154,9 +1139,9 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 	    }
 	}
     }
-	
+
     # Clean up any improperly terminated groups
-    
+
     switch -exact -- $state {
 	percent {
 	    append formatString %%
@@ -1183,11 +1168,10 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 #
 # clock scan --
 #
-#	Inputs a count of seconds since the Posix Epoch as a time
-#	of day.
+#	Inputs a count of seconds since the Posix Epoch as a time of day.
 #
-# The 'clock format' command scans times of day on input.
-# Refer to the user documentation to see what it does.
+# The 'clock format' command scans times of day on input.  Refer to the user
+# documentation to see what it does.
 #
 #----------------------------------------------------------------------
 
@@ -1239,8 +1223,8 @@ proc ::tcl::clock::scan { args } {
 	    }
 	    default {
 		return -code error \
-		    -errorcode [list CLOCK badSwitch $flag] \
-		    "bad switch \"$flag\",\
+		    -errorcode [list CLOCK badOption $flag] \
+		    "bad option \"$flag\",\
                      must be -base, -format, -gmt, -locale or -timezone"
 	    }
 	}
@@ -1254,21 +1238,17 @@ proc ::tcl::clock::scan { args } {
 	    "cannot use -gmt and -timezone in same call"
     }
     if { [catch { expr { wide($base) } } result] } {
-	return -code error \
-	    "expected integer but got \"$base\"" 
+	return -code error "expected integer but got \"$base\""
     }
-    if { ![string is boolean $gmt] } {
-	return -code error \
-	    "expected boolean value but got \"$gmt\""
-    } else {
-	if { $gmt } {
-	    set timezone :GMT
-	}
+    if { ![string is boolean -strict $gmt] } {
+	return -code error "expected boolean value but got \"$gmt\""
+    } elseif { $gmt } {
+	set timezone :GMT
     }
 
     if { ![info exists saw(-format)] } {
-	# Perhaps someday we'll localize the legacy code. Right now,
-	# it's not localized.
+	# Perhaps someday we'll localize the legacy code. Right now, it's not
+	# localized.
 	if { [info exists saw(-locale)] } {
 	    return -code error \
 		-errorcode [list CLOCK flagWithLegacyFormat] \
@@ -1282,25 +1262,17 @@ proc ::tcl::clock::scan { args } {
 
     EnterLocale $locale
 
-    set status [catch {
-
+    try {
 	# Map away the locale-dependent composite format groups
 
 	set scanner [ParseClockScanFormat $format $locale]
-	$scanner $string $base $timezone
+	return [$scanner $string $base $timezone]
+    } trap CLOCK {result opts} {
+	# Conceal location of generation of expected errors
 
-    } result opts]
-
-    if { $status == 1 } {
-	if { [lindex [dict get $opts -errorcode] 0] eq {clock} } {
-	    return -code error $result
-	} else {
-	    return -options $opts $result
-	}
-    } else {
-	return $result
+	dict unset opts -errorinfo
+	return -options $opts $result
     }
-
 }
 
 #----------------------------------------------------------------------
@@ -1316,8 +1288,8 @@ proc ::tcl::clock::scan { args } {
 #	locale - (Unused) Name of the locale where the time will be scanned.
 #
 # Results:
-#	Returns the date and time extracted from the string in seconds
-#	from the epoch
+#	Returns the date and time extracted from the string in seconds from
+#	the epoch
 #
 #----------------------------------------------------------------------
 
@@ -1326,42 +1298,41 @@ proc ::tcl::clock::FreeScan { string base timezone locale } {
     variable TZData
 
     # Get the data for time changes in the given zone
-    
-    if {[catch {SetupTimeZone $timezone} retval opts]} {
+
+    try {
+	SetupTimeZone $timezone
+    } on error {retval opts} {
 	dict unset opts -errorinfo
 	return -options $opts $retval
     }
 
-    # Extract year, month and day from the base time for the
-    # parser to use as defaults
-
-    set date [GetDateFields \
-		  $base \
-		  $TZData($timezone) \
-		  2361222]
-    dict set date secondOfDay [expr { [dict get $date localSeconds] 
-				      % 86400 }]
-
-    # Parse the date.  The parser will return a list comprising
-    # date, time, time zone, relative month/day/seconds, relative
-    # weekday, ordinal month.
-
-    set status [catch {
-	Oldscan $string \
-	    [dict get $date year] \
-	    [dict get $date month] \
-	    [dict get $date dayOfMonth]
-    } result]
-    if { $status != 0 } {
-	return -code error "unable to convert date-time string \"$string\": $result"
-    }
+    # Extract year, month and day from the base time for the parser to use as
+    # defaults
 
-    lassign $result parseDate parseTime parseZone parseRel \
-	parseWeekday parseOrdinalMonth
+    set date [GetDateFields $base $TZData($timezone) 2361222]
+    dict set date secondOfDay [expr {
+	[dict get $date localSeconds] % 86400
+    }]
 
-    # If the caller supplied a date in the string, update the 'date' dict
-    # with the value. If the caller didn't specify a time with the date,
-    # default to midnight.
+    # Parse the date.  The parser will return a list comprising date, time,
+    # time zone, relative month/day/seconds, relative weekday, ordinal month.
+
+    try {
+	set scanned [Oldscan $string \
+		     [dict get $date year] \
+		     [dict get $date month] \
+		     [dict get $date dayOfMonth]]
+	lassign $scanned \
+	    parseDate parseTime parseZone parseRel \
+	    parseWeekday parseOrdinalMonth
+    } on error message {
+	return -code error \
+	    "unable to convert date-time string \"$string\": $message"
+    }
+
+    # If the caller supplied a date in the string, update the 'date' dict with
+    # the value. If the caller didn't specify a time with the date, default to
+    # midnight.
 
     if { [llength $parseDate] > 0 } {
 	lassign $parseDate y m d
@@ -1381,12 +1352,12 @@ proc ::tcl::clock::FreeScan { string base timezone locale } {
 	}
     }
 
-    # If the caller supplied a time zone in the string, it comes back
-    # as a two-element list; the first element is the number of minutes
-    # east of Greenwich, and the second is a Daylight Saving Time
-    # indicator ( 1 == yes, 0 == no, -1 == unknown ). We make it into
-    # a time zone indicator of +-hhmm.
-    
+    # If the caller supplied a time zone in the string, it comes back as a
+    # two-element list; the first element is the number of minutes east of
+    # Greenwich, and the second is a Daylight Saving Time indicator (1 == yes,
+    # 0 == no, -1 == unknown). We make it into a time zone indicator of
+    # +-hhmm.
+
     if { [llength $parseZone] > 0 } {
 	lassign $parseZone minEast dstFlag
 	set timezone [FormatNumericTimeZone \
@@ -1400,18 +1371,19 @@ proc ::tcl::clock::FreeScan { string base timezone locale } {
     set date [GetJulianDayFromEraYearMonthDay $date[set date {}] 2361222]
     if { $parseTime ne {} } {
 	dict set date secondOfDay $parseTime
-    } elseif { [llength $parseWeekday] != 0 
-	       || [llength $parseOrdinalMonth] != 0 
-	       || ( [llength $parseRel] != 0 
+    } elseif { [llength $parseWeekday] != 0
+	       || [llength $parseOrdinalMonth] != 0
+	       || ( [llength $parseRel] != 0
 		    && ( [lindex $parseRel 0] != 0
 			 || [lindex $parseRel 1] != 0 ) ) } {
 	dict set date secondOfDay 0
     }
 
-    dict set date localSeconds \
-	[expr { -210866803200
-		+ ( 86400 * wide([dict get $date julianDay]) )
-		+ [dict get $date secondOfDay] }]
+    dict set date localSeconds [expr {
+	-210866803200
+	+ ( 86400 * wide([dict get $date julianDay]) )
+	+ [dict get $date secondOfDay]
+    }]
     dict set date tzName $timezone
     set date [ConvertLocalToUTC $date[set date {}] $TZData($timezone) 2361222]
     set seconds [dict get $date seconds]
@@ -1423,18 +1395,17 @@ proc ::tcl::clock::FreeScan { string base timezone locale } {
 	set seconds [add $seconds \
 			 $relMonth months $relDay days $relSecond seconds \
 			 -timezone $timezone -locale $locale]
-    }	
+    }
 
     # Do relative weekday
-    
-    if { [llength $parseWeekday] > 0 } {
 
+    if { [llength $parseWeekday] > 0 } {
 	lassign $parseWeekday dayOrdinal dayOfWeek
 	set date2 [GetDateFields $seconds $TZData($timezone) 2361222]
 	dict set date2 era CE
-	set jdwkday [WeekdayOnOrBefore $dayOfWeek \
-			 [expr { [dict get $date2 julianDay] 
-				 + 6 }]]
+	set jdwkday [WeekdayOnOrBefore $dayOfWeek [expr {
+	    [dict get $date2 julianDay] + 6
+	}]]
 	incr jdwkday [expr { 7 * $dayOrdinal }]
 	if { $dayOrdinal > 0 } {
 	    incr jdwkday -7
@@ -1442,10 +1413,11 @@ proc ::tcl::clock::FreeScan { string base timezone locale } {
 	dict set date2 secondOfDay \
 	    [expr { [dict get $date2 localSeconds] % 86400 }]
 	dict set date2 julianDay $jdwkday
-	dict set date2 localSeconds \
-	    [expr { -210866803200
-		    + ( 86400 * wide([dict get $date2 julianDay]) )
-		    + [dict get $date secondOfDay] }]
+	dict set date2 localSeconds [expr {
+	    -210866803200
+	    + ( 86400 * wide([dict get $date2 julianDay]) )
+	    + [dict get $date secondOfDay]
+	}]
 	dict set date2 tzName $timezone
 	set date2 [ConvertLocalToUTC $date2[set date2 {}] $TZData($timezone) \
 		       2361222]
@@ -1456,7 +1428,6 @@ proc ::tcl::clock::FreeScan { string base timezone locale } {
     # Do relative month
 
     if { [llength $parseOrdinalMonth] > 0 } {
-
 	lassign $parseOrdinalMonth monthOrdinal monthNumber
 	if { $monthOrdinal > 0 } {
 	    set monthDiff [expr { $monthNumber - [dict get $date month] }]
@@ -1473,7 +1444,6 @@ proc ::tcl::clock::FreeScan { string base timezone locale } {
 	}
 	set seconds [add $seconds $monthOrdinal years $monthDiff months \
 			 -timezone $timezone -locale $locale]
-
     }
 
     return $seconds
@@ -1491,30 +1461,27 @@ proc ::tcl::clock::FreeScan { string base timezone locale } {
 #	locale - The current locale
 #
 # Results:
-#	Constructs and returns a procedure that accepts the
-#	string being scanned, the base time, and the time zone.  
-#	The procedure will either return the scanned time or
-#	else throw an error that should be rethrown to the caller
-#	of [clock scan]
+#	Constructs and returns a procedure that accepts the string being
+#	scanned, the base time, and the time zone.  The procedure will either
+#	return the scanned time or else throw an error that should be rethrown
+#	to the caller of [clock scan]
 #
 # Side effects:
-#	The given procedure is defined in the ::tcl::clock
-#	namespace.  Scan procedures are not deleted once installed.
-#
-# Why do we parse dates by defining a procedure to parse them?
-# The reason is that by doing so, we have one convenient place to
-# cache all the information: the regular expressions that match the
-# patterns (which will be compiled), the code that assembles the
-# date information, everything lands in one place.  In this way,
-# when a given format is reused at run time, all the information
+#	The given procedure is defined in the ::tcl::clock namespace.  Scan
+#	procedures are not deleted once installed.
+#
+# Why do we parse dates by defining a procedure to parse them?  The reason is
+# that by doing so, we have one convenient place to cache all the information:
+# the regular expressions that match the patterns (which will be compiled),
+# the code that assembles the date information, everything lands in one place.
+# In this way, when a given format is reused at run time, all the information
 # of how to apply it is available in a single place.
 #
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::ParseClockScanFormat {formatString locale} {
-
-    # Check whether the format has been parsed previously, and return
-    # the existing recognizer if it has.
+    # Check whether the format has been parsed previously, and return the
+    # existing recognizer if it has.
 
     set procName scanproc'$formatString'$locale
     set procName [namespace current]::[string map {: {\:} \\ {\\}} $procName]
@@ -1558,8 +1525,8 @@ proc ::tcl::clock::ParseClockScanFormat {formatString locale} {
 		    append re {[[:space:]]+}
 		} else {
 		    if { ! [string is alnum $c] } {
-			append re \\
-			}
+			append re "\\"
+		    }
 		    append re $c
 		}
 	    }
@@ -1676,7 +1643,7 @@ proc ::tcl::clock::ParseClockScanFormat {formatString locale} {
 			    "::scan \$field" [incr captureCount] " %ld" \
 			    "\]\n"
 		    }
-		    m - N {			# Month number
+		    m - N {		# Month number
 			append re \\s*(\\d\\d?)
 			dict set fieldSet month [incr fieldCount]
 			append postcode "dict set date month \[" \
@@ -1719,10 +1686,9 @@ proc ::tcl::clock::ParseClockScanFormat {formatString locale} {
 			    \] \n
 		    }
 		    s {			# Seconds from Posix Epoch
-			# This next case is insanely difficult,
-			# because it's problematic to determine
-			# whether the field is actually within
-			# the range of a wide integer.
+			# This next case is insanely difficult, because it's
+			# problematic to determine whether the field is
+			# actually within the range of a wide integer.
 			append re {\s*([-+]?\d+)}
 			dict set fieldSet seconds [incr fieldCount]
 			append postcode {dict set date seconds } \[ \
@@ -1755,14 +1721,13 @@ proc ::tcl::clock::ParseClockScanFormat {formatString locale} {
 				dict set date dayOfWeek $dow
 			    }
 		    }
-		    U {			# Week of year. The
-					# first Sunday of the year is the
-					# first day of week 01. No scan rule
-					# uses this group.
+		    U {			# Week of year. The first Sunday of
+					# the year is the first day of week
+					# 01. No scan rule uses this group.
 			append re \\s*\\d\\d?
 		    }
 		    V {			# Week of ISO8601 year
-			
+
 			append re \\s*(\\d\\d?)
 			dict set fieldSet iso8601Week [incr fieldCount]
 			append postcode "dict set date iso8601Week \[" \
@@ -1934,7 +1899,7 @@ proc ::tcl::clock::ParseClockScanFormat {formatString locale} {
 					"day of week is greater than 7"
 				}
 				dict set date dayOfWeek $dow
-			    }				
+			    }
 		    }
 		    y {
 			lassign [LocaleNumeralMatcher $locale] regex lookup
@@ -1980,10 +1945,11 @@ proc ::tcl::clock::ParseClockScanFormat {formatString locale} {
     append procBody $postcode
     append procBody [list set changeover [mc GREGORIAN_CHANGE_DATE]] \n
 
-    # Get time zone if needed
+    # Set up the time zone before doing anything with a default base date
+    # that might need a timezone to interpret it.
 
-    if { ![dict exists $fieldSet seconds] 
-	 && ![dict exists $fieldSet starDate] } {
+    if { ![dict exists $fieldSet seconds]
+	    && ![dict exists $fieldSet starDate] } {
 	if { [dict exists $fieldSet tzName] } {
 	    append procBody {
 		set timeZone [dict get $date tzName]
@@ -2002,24 +1968,29 @@ proc ::tcl::clock::ParseClockScanFormat {formatString locale} {
 
     append procBody [MakeParseCodeFromFields $fieldSet $TimeParseActions]
 
-    # Assemble seconds, and convert local nominal time to UTC.
+    # Assemble seconds from the Julian day and second of the day.
+    # Convert to local time unless epoch seconds or stardate are
+    # being processed - they're always absolute
 
-    if { ![dict exists $fieldSet seconds] 
+    if { ![dict exists $fieldSet seconds]
          && ![dict exists $fieldSet starDate] } {
 	append procBody {
 	    if { [dict get $date julianDay] > 5373484 } {
 		return -code error -errorcode [list CLOCK dateTooLarge] \
 		    "requested date too large to represent"
 	    }
-	    dict set date localSeconds \
-		[expr { -210866803200
-			+ ( 86400 * wide([dict get $date julianDay]) )
-			+ [dict get $date secondOfDay] }]
+	    dict set date localSeconds [expr {
+		-210866803200
+		+ ( 86400 * wide([dict get $date julianDay]) )
+		+ [dict get $date secondOfDay]
+	    }]
 	}
+
+	# Finally, convert the date to local time
+
 	append procBody {
 	    set date [::tcl::clock::ConvertLocalToUTC $date[set date {}] \
-			  $TZData($timeZone) \
-			  $changeover]
+			  $TZData($timeZone) $changeover]
 	}
     }
 
@@ -2033,31 +2004,29 @@ proc ::tcl::clock::ParseClockScanFormat {formatString locale} {
 
     return $procName
 }
-	
+
 #----------------------------------------------------------------------
 #
 # LocaleNumeralMatcher --
 #
-#	Composes a regexp that captures the numerals in the given
-#	locale, and a dictionary to map them to conventional numerals.
+#	Composes a regexp that captures the numerals in the given locale, and
+#	a dictionary to map them to conventional numerals.
 #
 # Parameters:
 #	locale - Name of the current locale
 #
 # Results:
-#	Returns a two-element list comprising the regexp and the
-#	dictionary.
+#	Returns a two-element list comprising the regexp and the dictionary.
 #
 # Side effects:
 #	Caches the result.
 #
 #----------------------------------------------------------------------
 
-proc ::tcl::clock::LocaleNumeralMatcher {locale} {
-
+proc ::tcl::clock::LocaleNumeralMatcher {l} {
     variable LocaleNumeralCache
 
-    if { ![dict exists $LocaleNumeralCache $locale] } {
+    if { ![dict exists $LocaleNumeralCache $l] } {
 	set d {}
 	set i 0
 	set sep \(
@@ -2069,20 +2038,20 @@ proc ::tcl::clock::LocaleNumeralMatcher {locale} {
 	    incr i
 	}
 	append re \)
-	dict set LocaleNumeralCache $locale [list $re $d]
+	dict set LocaleNumeralCache $l [list $re $d]
     }
-    return [dict get $LocaleNumeralCache $locale]
+    return [dict get $LocaleNumeralCache $l]
 }
-	
+
 
 
 #----------------------------------------------------------------------
 #
 # UniquePrefixRegexp --
 #
-#	Composes a regexp that performs unique-prefix matching.  The
-#	RE matches one of a supplied set of strings, or any unique
-#	prefix thereof.
+#	Composes a regexp that performs unique-prefix matching.  The RE
+#	matches one of a supplied set of strings, or any unique prefix
+#	thereof.
 #
 # Parameters:
 #	data - List of alternating match-strings and values.
@@ -2090,10 +2059,10 @@ proc ::tcl::clock::LocaleNumeralMatcher {locale} {
 #	       distinct.
 #
 # Results:
-#	Returns a two-element list.  The first is a regexp that
-#	matches any unique prefix of any of the strings.  The second
-#	is a dictionary whose keys are match values from the regexp
-#	and whose values are the corresponding values from 'data'.
+#	Returns a two-element list.  The first is a regexp that matches any
+#	unique prefix of any of the strings.  The second is a dictionary whose
+#	keys are match values from the regexp and whose values are the
+#	corresponding values from 'data'.
 #
 # Side effects:
 #	None.
@@ -2101,11 +2070,10 @@ proc ::tcl::clock::LocaleNumeralMatcher {locale} {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::UniquePrefixRegexp { data } {
-
-    # The 'successors' dictionary will contain, for each string that
-    # is a prefix of any key, all characters that may follow that
-    # prefix.  The 'prefixMapping' dictionary will have keys that
-    # are prefixes of keys and values that correspond to the keys.
+    # The 'successors' dictionary will contain, for each string that is a
+    # prefix of any key, all characters that may follow that prefix.  The
+    # 'prefixMapping' dictionary will have keys that are prefixes of keys and
+    # values that correspond to the keys.
 
     set prefixMapping [dict create]
     set successors [dict create {} {}]
@@ -2113,8 +2081,7 @@ proc ::tcl::clock::UniquePrefixRegexp { data } {
     # Walk the key-value pairs
 
     foreach { key value } $data {
-
-	# Construct all prefixes of the key; 
+	# Construct all prefixes of the key;
 
 	set prefix {}
 	foreach char [split $key {}] {
@@ -2132,8 +2099,8 @@ proc ::tcl::clock::UniquePrefixRegexp { data } {
 	}
     }
 
-    # Identify those prefixes that designate unique values, and
-    # those that are the full keys
+    # Identify those prefixes that designate unique values, and those that are
+    # the full keys
 
     set uniquePrefixMapping {}
     dict for { key valueList } $prefixMapping {
@@ -2156,8 +2123,8 @@ proc ::tcl::clock::UniquePrefixRegexp { data } {
 #
 # MakeUniquePrefixRegexp --
 #
-#	Service procedure for 'UniquePrefixRegexp' that constructs
-#	a regular expresison that matches the unique prefixes.
+#	Service procedure for 'UniquePrefixRegexp' that constructs a regular
+#	expresison that matches the unique prefixes.
 #
 # Parameters:
 #	successors - Dictionary whose keys are all prefixes
@@ -2169,15 +2136,15 @@ proc ::tcl::clock::UniquePrefixRegexp { data } {
 #	prefixString - Current prefix being processed.
 #
 # Results:
-#	Returns a constructed regular expression that matches the set
-#	of unique prefixes beginning with the 'prefixString'.
+#	Returns a constructed regular expression that matches the set of
+#	unique prefixes beginning with the 'prefixString'.
 #
 # Side effects:
 #	None.
 #
 #----------------------------------------------------------------------
 
-proc ::tcl::clock::MakeUniquePrefixRegexp { successors 
+proc ::tcl::clock::MakeUniquePrefixRegexp { successors
 					  uniquePrefixMapping
 					  prefixString } {
 
@@ -2188,13 +2155,15 @@ proc ::tcl::clock::MakeUniquePrefixRegexp { successors
 	return {}
     }
 
-    # If there is more than one successor character, or if the current
-    # prefix is a unique prefix, surround the generated re with non-capturing
+    # If there is more than one successor character, or if the current prefix
+    # is a unique prefix, surround the generated re with non-capturing
     # parentheses.
 
     set re {}
-    if { [dict exists $uniquePrefixMapping $prefixString]
-	 || [llength $schars] > 1 } {
+    if {
+	[dict exists $uniquePrefixMapping $prefixString]
+	|| [llength $schars] > 1
+    } then {
 	append re "(?:"
     }
 
@@ -2216,7 +2185,7 @@ proc ::tcl::clock::MakeUniquePrefixRegexp { successors
 
     if { [dict exists $uniquePrefixMapping $prefixString] } {
 	append re ")?"
-    }  elseif { [llength $schars] > 1 } {
+    } elseif { [llength $schars] > 1 } {
 	append re ")"
     }
 
@@ -2227,8 +2196,8 @@ proc ::tcl::clock::MakeUniquePrefixRegexp { successors
 #
 # MakeParseCodeFromFields --
 #
-#	Composes Tcl code to extract the Julian Day Number from a
-#	dictionary containing date fields.
+#	Composes Tcl code to extract the Julian Day Number from a dictionary
+#	containing date fields.
 #
 # Parameters:
 #	dateFields -- Dictionary whose keys are fields of the date,
@@ -2239,8 +2208,8 @@ proc ::tcl::clock::MakeUniquePrefixRegexp { successors
 #			the list must be in ascending order by priority
 #
 # Results:
-#	Returns a burst of code that extracts the day number from the
-#	given date.
+#	Returns a burst of code that extracts the day number from the given
+#	date.
 #
 # Side effects:
 #	None.
@@ -2256,16 +2225,15 @@ proc ::tcl::clock::MakeParseCodeFromFields { dateFields parseActions } {
     }
 
     foreach { fieldSet prio parseAction } $parseActions {
-
-	# If we've found an answer that's better than any that follow,
-	# quit now.
+	# If we've found an answer that's better than any that follow, quit
+	# now.
 
 	if { $prio > $currPrio } {
 	    break
 	}
 
-	# Accumulate the field positions that are used in the current
-	# field grouping.
+	# Accumulate the field positions that are used in the current field
+	# grouping.
 
 	set fieldPos [list]
 	set ok true
@@ -2288,9 +2256,11 @@ proc ::tcl::clock::MakeParseCodeFromFields { dateFields parseActions } {
 
 	if { $prio ==  $currPrio } {
 	    foreach currPos $currFieldPos newPos $fPos {
-		if { ![string is integer $newPos]
-		     || ![string is integer $currPos]
-		     || $newPos > $currPos } {
+		if {
+		    ![string is integer $newPos]
+		    || ![string is integer $currPos]
+		    || $newPos > $currPos
+		} then {
 		    break
 		}
 		if { $newPos < $currPos } {
@@ -2308,56 +2278,50 @@ proc ::tcl::clock::MakeParseCodeFromFields { dateFields parseActions } {
 	set currPrio $prio
 	set currFieldPos $fPos
 	set currCodeBurst $parseAction
-	    
     }
 
     return $currCodeBurst
-
 }
 
 #----------------------------------------------------------------------
 #
 # EnterLocale --
 #
-#	By shure given locale is loaded and set variable Locale
+#	Switch [mclocale] to a given locale if necessary
 #
 # Parameters:
 #	locale -- Desired locale
+#	oldLocaleVar -- Name of a variable in caller's scope that
+#		        tracks the previous locale name.
 #
 # Results:
-#	%
+#	Returns the locale that was previously current.
 #
 # Side effects:
-#	If necessary, uses [mcloadedlocales packageadd] to load the
-#	designated locale's files.
+#	Does [mclocale].  If necessary, uses [mcload] to load the designated
+#	locale's files, and tracks that it has done so in the 'McLoaded'
+#	variable.
 #
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::EnterLocale { locale } {
-
     if { $locale eq {system} } {
-
 	if { $::tcl_platform(platform) ne {windows} } {
-
-	    # On a non-windows platform, the 'system' locale is
-	    # the same as the 'current' locale
+	    # On a non-windows platform, the 'system' locale is the same as
+	    # the 'current' locale
 
 	    set locale current
 	} else {
-
-	    # On a windows platform, the 'system' locale is
-	    # adapted from the 'current' locale by applying the
-	    # date and time formats from the Control Panel.
-	    # First, load the 'current' locale if it's not yet loaded
+	    # On a windows platform, the 'system' locale is adapted from the
+	    # 'current' locale by applying the date and time formats from the
+	    # Control Panel.  First, load the 'current' locale if it's not yet
+	    # loaded
 
 	    mcpackagelocale [mclocale]
 
-	    # Make a new locale string for the system locale, and
-	    # get the Control Panel information
+	    # Make a new locale string for the system locale, and get the
+	    # Control Panel information
 
-	    # This will only load the current locale below, as it is a
-	    # descent from <locale>_windows.
-	    # The <locale>_windows will be remembered as current and as loaded.
 	    set locale [mclocale]_windows
 	    if { $locale ni [::msgcat::mcpackagelocale loaded] } {
 		LoadWindowsDateTimeFormats $locale
@@ -2369,14 +2333,14 @@ proc ::tcl::clock::EnterLocale { locale } {
     }
     # Eventually load the locale
     mcpackagelocale set $locale
-}    
+}
 
 #----------------------------------------------------------------------
 #
 # LoadWindowsDateTimeFormats --
 #
-#	Load the date/time formats from the Control Panel in Windows
-#	and convert them so that they're usable by Tcl.
+#	Load the date/time formats from the Control Panel in Windows and
+#	convert them so that they're usable by Tcl.
 #
 # Parameters:
 #	locale - Name of the locale in whose message catalog
@@ -2388,14 +2352,12 @@ proc ::tcl::clock::EnterLocale { locale } {
 # Side effects:
 #	Updates the given message catalog with the locale strings.
 #
-# Presumes that on entry, [mclocale] is set to the current locale,
-# so that default strings can be obtained if the Registry query
-# fails.
+# Presumes that on entry, [mclocale] is set to the current locale, so that
+# default strings can be obtained if the Registry query fails.
 #
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::LoadWindowsDateTimeFormats { locale } {
-
     # Bail out if we can't find the Registry
 
     variable NoRegistry
@@ -2512,8 +2474,8 @@ proc ::tcl::clock::LoadWindowsDateTimeFormats { locale } {
 #	format -- Format supplied to [clock scan] or [clock format]
 #
 # Results:
-#	Returns the string with locale-dependent composite format
-#	groups substituted out.
+#	Returns the string with locale-dependent composite format groups
+#	substituted out.
 #
 # Side effects:
 #	None.
@@ -2532,7 +2494,7 @@ proc ::tcl::clock::LocalizeFormat { locale format } {
     # string.  Note that the order of the [string map] operations is
     # significant because later formats can refer to later ones; for example
     # %c can refer to %X, which in turn can refer to %T.
-    
+
     set list {
 	%% %%
 	%D %m/%d/%Y
@@ -2549,7 +2511,7 @@ proc ::tcl::clock::LocalizeFormat { locale format } {
     lappend list %c  [string map $list [mc DATE_TIME_FORMAT]]
     lappend list %Ec [string map $list [mc LOCALE_DATE_TIME_FORMAT]]
     set format [string map $list $format]
-				       
+
     mcset $locale $key $format
     return $format
 }
@@ -2572,7 +2534,6 @@ proc ::tcl::clock::LocalizeFormat { locale format } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::FormatNumericTimeZone { z } {
-
     if { $z < 0 } {
 	set z [expr { - $z }]
 	set retval -
@@ -2587,7 +2548,6 @@ proc ::tcl::clock::FormatNumericTimeZone { z } {
 	append retval [::format %02d $z]
     }
     return $retval
-
 }
 
 #----------------------------------------------------------------------
@@ -2612,7 +2572,6 @@ proc ::tcl::clock::FormatNumericTimeZone { z } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::FormatStarDate { date } {
-
     variable Roddenberry
 
     # Get day of year, zero based
@@ -2663,7 +2622,6 @@ proc ::tcl::clock::FormatStarDate { date } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::ParseStarDate { year fractYear fractDay } {
-
     variable Roddenberry
 
     # Build a tentative date from year and fraction.
@@ -2679,8 +2637,8 @@ proc ::tcl::clock::ParseStarDate { year fractYear fractDay } {
 
     set lp [IsGregorianLeapYear $date]
 
-    # Reconvert the fractional year according to whether the given
-    # year is a leap year
+    # Reconvert the fractional year according to whether the given year is a
+    # leap year
 
     if { $lp } {
 	dict set date dayOfYear \
@@ -2693,10 +2651,11 @@ proc ::tcl::clock::ParseStarDate { year fractYear fractDay } {
     dict unset date gregorian
     set date [GetJulianDayFromGregorianEraYearDay $date[set date {}]]
 
-    return [expr { 86400 * [dict get $date julianDay]
-		   - 210866803200
-		   + ( 86400 / 10 ) * $fractDay }]
-
+    return [expr {
+	86400 * [dict get $date julianDay]
+	- 210866803200
+	+ ( 86400 / 10 ) * $fractDay
+    }]
 }
 
 #----------------------------------------------------------------------
@@ -2709,8 +2668,8 @@ proc ::tcl::clock::ParseStarDate { year fractYear fractDay } {
 #	str - String containing a decimal wide integer
 #
 # Results:
-#	Returns the string as a pure wide integer.  Throws an error if
-#	the string is misformatted or out of range.
+#	Returns the string as a pure wide integer.  Throws an error if the
+#	string is misformatted or out of range.
 #
 #----------------------------------------------------------------------
 
@@ -2731,8 +2690,8 @@ proc ::tcl::clock::ScanWide { str } {
 #
 # InterpretTwoDigitYear --
 #
-#	Given a date that contains only the year of the century,
-#	determines the target value of a two-digit year.
+#	Given a date that contains only the year of the century, determines
+#	the target value of a two-digit year.
 #
 # Parameters:
 #	date - Dictionary containing fields of the date.
@@ -2749,18 +2708,17 @@ proc ::tcl::clock::ScanWide { str } {
 # Side effects:
 #	None.
 #
-# The current rule for interpreting a two-digit year is that the year
-# shall be between 1937 and 2037, thus staying within the range of a
-# 32-bit signed value for time.  This rule may change to a sliding
-# window in future versions, so the 'baseTime' parameter (which is
-# currently ignored) is provided in the procedure signature.
+# The current rule for interpreting a two-digit year is that the year shall be
+# between 1937 and 2037, thus staying within the range of a 32-bit signed
+# value for time.  This rule may change to a sliding window in future
+# versions, so the 'baseTime' parameter (which is currently ignored) is
+# provided in the procedure signature.
 #
 #----------------------------------------------------------------------
 
-proc ::tcl::clock::InterpretTwoDigitYear { date baseTime 
+proc ::tcl::clock::InterpretTwoDigitYear { date baseTime
 					   { twoDigitField yearOfCentury }
 					   { fourDigitField year } } {
-
     set yr [dict get $date $twoDigitField]
     if { $yr <= 37 } {
 	dict set date $fourDigitField [expr { $yr + 2000 }]
@@ -2768,7 +2726,6 @@ proc ::tcl::clock::InterpretTwoDigitYear { date baseTime
 	dict set date $fourDigitField [expr { $yr + 1900 }]
     }
     return $date
-
 }
 
 #----------------------------------------------------------------------
@@ -2794,7 +2751,6 @@ proc ::tcl::clock::InterpretTwoDigitYear { date baseTime
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::AssignBaseYear { date baseTime timezone changeover } {
-
     variable TZData
 
     # Find the Julian Day Number corresponding to the base time, and
@@ -2808,7 +2764,6 @@ proc ::tcl::clock::AssignBaseYear { date baseTime timezone changeover } {
     dict set date year [dict get $date2 year]
 
     return $date
-
 }
 
 #----------------------------------------------------------------------
@@ -2835,7 +2790,6 @@ proc ::tcl::clock::AssignBaseYear { date baseTime timezone changeover } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::AssignBaseIso8601Year {date baseTime timeZone changeover} {
-
     variable TZData
 
     # Find the Julian Day Number corresponding to the base time
@@ -2853,7 +2807,7 @@ proc ::tcl::clock::AssignBaseIso8601Year {date baseTime timeZone changeover} {
 #
 # AssignBaseMonth --
 #
-#	Places the number of the current year and month into a 
+#	Places the number of the current year and month into a
 #	dictionary.
 #
 # Parameters:
@@ -2872,7 +2826,6 @@ proc ::tcl::clock::AssignBaseIso8601Year {date baseTime timeZone changeover} {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::AssignBaseMonth {date baseTime timezone changeover} {
-
     variable TZData
 
     # Find the year and month corresponding to the base time
@@ -2882,7 +2835,6 @@ proc ::tcl::clock::AssignBaseMonth {date baseTime timezone changeover} {
     dict set date year [dict get $date2 year]
     dict set date month [dict get $date2 month]
     return $date
-
 }
 
 #----------------------------------------------------------------------
@@ -2908,7 +2860,6 @@ proc ::tcl::clock::AssignBaseMonth {date baseTime timezone changeover} {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::AssignBaseWeek {date baseTime timeZone changeover} {
-
     variable TZData
 
     # Find the Julian Day Number corresponding to the base time
@@ -2945,7 +2896,6 @@ proc ::tcl::clock::AssignBaseWeek {date baseTime timeZone changeover} {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::AssignBaseJulianDay { date baseTime timeZone changeover } {
-
     variable TZData
 
     # Find the Julian Day Number corresponding to the base time
@@ -2975,7 +2925,6 @@ proc ::tcl::clock::AssignBaseJulianDay { date baseTime timeZone changeover } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::InterpretHMSP { date } {
-
     set hr [dict get $date hourAMPM]
     if { $hr == 12 } {
 	set hr 0
@@ -2985,7 +2934,6 @@ proc ::tcl::clock::InterpretHMSP { date } {
     }
     dict set date hour $hr
     return [InterpretHMS $date[set date {}]]
-
 }
 
 #----------------------------------------------------------------------
@@ -3008,11 +2956,11 @@ proc ::tcl::clock::InterpretHMSP { date } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::InterpretHMS { date } {
-
-    return [expr { ( [dict get $date hour] * 60
-		     + [dict get $date minute] ) * 60
-		   + [dict get $date second] }]
-
+    return [expr {
+	( [dict get $date hour] * 60
+	  + [dict get $date minute] ) * 60
+	+ [dict get $date second]
+    }]
 }
 
 #----------------------------------------------------------------------
@@ -3035,7 +2983,6 @@ proc ::tcl::clock::InterpretHMS { date } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::GetSystemTimeZone {} {
-
     variable CachedSystemTimeZone
     variable TimeZoneBad
 
@@ -3068,76 +3015,69 @@ proc ::tcl::clock::GetSystemTimeZone {} {
     } else {
 	return $timezone
     }
-
 }
 
 #----------------------------------------------------------------------
 #
 # ConvertLegacyTimeZone --
 #
-#	Given an alphanumeric time zone identifier and the system
-#	time zone, convert the alphanumeric identifier to an
-#	unambiguous time zone.
+#	Given an alphanumeric time zone identifier and the system time zone,
+#	convert the alphanumeric identifier to an unambiguous time zone.
 #
 # Parameters:
 #	tzname - Name of the time zone to convert
 #
 # Results:
-#	Returns a time zone name corresponding to tzname, but
-#	in an unambiguous form, generally +hhmm.
+#	Returns a time zone name corresponding to tzname, but in an
+#	unambiguous form, generally +hhmm.
 #
-# This procedure is implemented primarily to allow the parsing of
-# RFC822 date/time strings.  Processing a time zone name on input
-# is not recommended practice, because there is considerable room
-# for ambiguity; for instance, is BST Brazilian Standard Time, or
-# British Summer Time?
+# This procedure is implemented primarily to allow the parsing of RFC822
+# date/time strings.  Processing a time zone name on input is not recommended
+# practice, because there is considerable room for ambiguity; for instance, is
+# BST Brazilian Standard Time, or British Summer Time?
 #
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::ConvertLegacyTimeZone { tzname } {
-
     variable LegacyTimeZone
 
     set tzname [string tolower $tzname]
     if { ![dict exists $LegacyTimeZone $tzname] } {
 	return -code error -errorcode [list CLOCK badTZName $tzname] \
 	    "time zone \"$tzname\" not found"
-    } else {
-	return [dict get $LegacyTimeZone $tzname]
     }
-
+    return [dict get $LegacyTimeZone $tzname]
 }
 
 #----------------------------------------------------------------------
 #
 # SetupTimeZone --
 #
-#	Given the name or specification of a time zone, sets up
-#	its in-memory data.
+#	Given the name or specification of a time zone, sets up its in-memory
+#	data.
 #
 # Parameters:
 #	tzname - Name of a time zone
 #
 # Results:
-#	Unless the time zone is ':localtime', sets the TZData array
-#	to contain the lookup table for local<->UTC conversion.
-#	Returns an error if the time zone cannot be parsed.
+#	Unless the time zone is ':localtime', sets the TZData array to contain
+#	the lookup table for local<->UTC conversion.  Returns an error if the
+#	time zone cannot be parsed.
 #
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::SetupTimeZone { timezone } {
-
     variable TZData
 
     if {! [info exists TZData($timezone)] } {
 	variable MINWIDE
 	if { $timezone eq {:localtime} } {
-
 	    # Nothing to do, we'll convert using the localtime function
 
-	} elseif { [regexp {^([-+])(\d\d)(?::?(\d\d)(?::?(\d\d))?)?} $timezone \
-		    -> s hh mm ss] } {
-
+	} elseif {
+	    [regexp {^([-+])(\d\d)(?::?(\d\d)(?::?(\d\d))?)?} $timezone \
+		    -> s hh mm ss]
+	} then {
 	    # Make a fixed offset
 
 	    ::scan $hh %d hh
@@ -3158,24 +3098,20 @@ proc ::tcl::clock::SetupTimeZone { timezone } {
 	    set TZData($timezone) [list [list $MINWIDE $offset -1 $timezone]]
 
 	} elseif { [string index $timezone 0] eq {:} } {
-	    
 	    # Convert using a time zone file
 
-	    if { 
+	    if {
 		[catch {
 		    LoadTimeZoneFile [string range $timezone 1 end]
-		}]
-		&& [catch {
+		}] && [catch {
 		    LoadZoneinfoFile [string range $timezone 1 end]
 		}]
-	    } {
+	    } then {
 		return -code error \
 		    -errorcode [list CLOCK badTimeZone $timezone] \
 		    "time zone \"$timezone\" not found"
 	    }
-	    
 	} elseif { ![catch {ParsePosixTimeZone $timezone} tzfields] } {
-	    
 	    # This looks like a POSIX time zone - try to process it
 
 	    if { [catch {ProcessPosixTimeZone $tzfields} data opts] } {
@@ -3188,9 +3124,8 @@ proc ::tcl::clock::SetupTimeZone { timezone } {
 	    }
 
 	} else {
-
-	    # We couldn't parse this as a POSIX time zone.  Try
-	    # again with a time zone file - this time without a colon
+	    # We couldn't parse this as a POSIX time zone.  Try again with a
+	    # time zone file - this time without a colon
 
 	    if { [catch { LoadTimeZoneFile $timezone }]
 		 && [catch { LoadZoneinfoFile $timezone } - opts] } {
@@ -3214,25 +3149,22 @@ proc ::tcl::clock::SetupTimeZone { timezone } {
 #	None.
 #
 # Results:
-#	Returns a time zone specifier that corresponds to the system
-#	time zone information found in the Registry.
+#	Returns a time zone specifier that corresponds to the system time zone
+#	information found in the Registry.
 #
 # Bugs:
-#	Fixed dates for DST change are unimplemented at present, because
-#	no time zone information supplied with Windows actually uses
-#	them!
+#	Fixed dates for DST change are unimplemented at present, because no
+#	time zone information supplied with Windows actually uses them!
 #
-# On a Windows system where neither $env(TCL_TZ) nor $env(TZ) is 
-# specified, GuessWindowsTimeZone looks in the Registry for the
-# system time zone information.  It then attempts to find an entry
-# in WinZoneInfo for a time zone that uses the same rules.  If
-# it finds one, it returns it; otherwise, it constructs a Posix-style
-# time zone string and returns that.
+# On a Windows system where neither $env(TCL_TZ) nor $env(TZ) is specified,
+# GuessWindowsTimeZone looks in the Registry for the system time zone
+# information.  It then attempts to find an entry in WinZoneInfo for a time
+# zone that uses the same rules.  If it finds one, it returns it; otherwise,
+# it constructs a Posix-style time zone string and returns that.
 #
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::GuessWindowsTimeZone {} {
-
     variable WinZoneInfo
     variable NoRegistry
     variable TimeZoneBad
@@ -3263,16 +3195,14 @@ proc ::tcl::clock::GuessWindowsTimeZone {} {
 	    lappend data $val
 	}
     }] } {
-
 	# Missing values in the Registry - bail out
 
 	return :localtime
     }
 
-    # Make up a Posix time zone specifier if we can't find one.
-    # Check here that the tzdata file exists, in case we're running
-    # in an environment (e.g. starpack) where tzdata is incomplete.
-    # (Bug 1237907)
+    # Make up a Posix time zone specifier if we can't find one.  Check here
+    # that the tzdata file exists, in case we're running in an environment
+    # (e.g. starpack) where tzdata is incomplete.  (Bug 1237907)
 
     if { [dict exists $WinZoneInfo $data] } {
 	set tzname [dict get $WinZoneInfo $data]
@@ -3320,11 +3250,11 @@ proc ::tcl::clock::GuessWindowsTimeZone {} {
 	    if { $dstYear == 0 } {
 		append tzname ,M $dstMonth . $dstDayOfMonth . $dstDayOfWeek
 	    } else {
-		# I have not been able to find any locale on which
-		# Windows converts time zone on a fixed day of the year,
-		# hence don't know how to interpret the fields.
-		# If someone can inform me, I'd be glad to code it up.
-		# For right now, we bail out in such a case.
+		# I have not been able to find any locale on which Windows
+		# converts time zone on a fixed day of the year, hence don't
+		# know how to interpret the fields.  If someone can inform me,
+		# I'd be glad to code it up.  For right now, we bail out in
+		# such a case.
 		return :localtime
 	    }
 	    append tzname / [::format %02d $dstHour] \
@@ -3333,11 +3263,11 @@ proc ::tcl::clock::GuessWindowsTimeZone {} {
 	    if { $stdYear == 0 } {
 		append tzname ,M $stdMonth . $stdDayOfMonth . $stdDayOfWeek
 	    } else {
-		# I have not been able to find any locale on which
-		# Windows converts time zone on a fixed day of the year,
-		# hence don't know how to interpret the fields.
-		# If someone can inform me, I'd be glad to code it up.
-		# For right now, we bail out in such a case.
+		# I have not been able to find any locale on which Windows
+		# converts time zone on a fixed day of the year, hence don't
+		# know how to interpret the fields.  If someone can inform me,
+		# I'd be glad to code it up.  For right now, we bail out in
+		# such a case.
 		return :localtime
 	    }
 	    append tzname / [::format %02d $stdHour] \
@@ -3345,10 +3275,9 @@ proc ::tcl::clock::GuessWindowsTimeZone {} {
 		: [::format %02d $stdSecond]
 	}
 	dict set WinZoneInfo $data $tzname
-    } 
+    }
 
     return [dict get $WinZoneInfo $data]
-
 }
 
 #----------------------------------------------------------------------
@@ -3377,18 +3306,18 @@ proc ::tcl::clock::LoadTimeZoneFile { fileName } {
 	return
     }
 
-    # Since an unsafe interp uses the [clock] command in the master,
-    # this code is security sensitive.  Make sure that the path name
-    # cannot escape the given directory.
+    # Since an unsafe interp uses the [clock] command in the master, this code
+    # is security sensitive.  Make sure that the path name cannot escape the
+    # given directory.
 
     if { ![regexp {^[[.-.][:alpha:]_]+(?:/[[.-.][:alpha:]_]+)*$} $fileName] } {
 	return -code error \
 	    -errorcode [list CLOCK badTimeZone $:fileName] \
 	    "time zone \":$fileName\" not valid"
     }
-    if { [catch {
+    try {
 	source -encoding utf-8 [file join $DataDir $fileName]
-    }] } {
+    } on error {} {
 	return -code error \
 	    -errorcode [list CLOCK badTimeZone :$fileName] \
 	    "time zone \":$fileName\" not found"
@@ -3406,8 +3335,8 @@ proc ::tcl::clock::LoadTimeZoneFile { fileName } {
 #	fileName - Relative path name of the file to load.
 #
 # Results:
-#	Returns an empty result normally; returns an error if no
-#	Olson file was found or the file was malformed in some way.
+#	Returns an empty result normally; returns an error if no Olson file
+#	was found or the file was malformed in some way.
 #
 # Side effects:
 #	TZData(:fileName) contains the time zone data
@@ -3415,12 +3344,11 @@ proc ::tcl::clock::LoadTimeZoneFile { fileName } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::LoadZoneinfoFile { fileName } {
-
     variable ZoneinfoPaths
 
-    # Since an unsafe interp uses the [clock] command in the master,
-    # this code is security sensitive.  Make sure that the path name
-    # cannot escape the given directory.
+    # Since an unsafe interp uses the [clock] command in the master, this code
+    # is security sensitive.  Make sure that the path name cannot escape the
+    # given directory.
 
     if { ![regexp {^[[.-.][:alpha:]_]+(?:/[[.-.][:alpha:]_]+)*$} $fileName] } {
 	return -code error \
@@ -3449,15 +3377,14 @@ proc ::tcl::clock::LoadZoneinfoFile { fileName } {
 #	fname - Absolute path name of the file.
 #
 # Results:
-#	Returns an empty result normally; returns an error if no
-#	Olson file was found or the file was malformed in some way.
+#	Returns an empty result normally; returns an error if no Olson file
+#	was found or the file was malformed in some way.
 #
 # Side effects:
 #	TZData(:fileName) contains the time zone data
 #
 #----------------------------------------------------------------------
 
-
 proc ::tcl::clock::ReadZoneinfoFile {fileName fname} {
     variable MINWIDE
     variable TZData
@@ -3476,8 +3403,8 @@ proc ::tcl::clock::ReadZoneinfoFile {fileName fname} {
     set d [read $f]
     close $f
 
-    # The file begins with a magic number, sixteen reserved bytes,
-    # and then six 4-byte integers giving counts of fileds in the file.
+    # The file begins with a magic number, sixteen reserved bytes, and then
+    # six 4-byte integers giving counts of fileds in the file.
 
     binary scan $d a4a1x15IIIIII \
 	magic version nIsGMT nIsStd nLeap nTime nType nChar
@@ -3495,18 +3422,19 @@ proc ::tcl::clock::ReadZoneinfoFile {fileName fname} {
 	return -code error "$fileName contains leap seconds"
     }
 
-    # In a version 2 file, we use the second part of the file, which
-    # contains 64-bit transition times.
+    # In a version 2 file, we use the second part of the file, which contains
+    # 64-bit transition times.
 
     if {$version eq "2"} {
-	set seek [expr {44
-			+ 5 * $nTime 
-			+ 6 * $nType 
-			+ 4 * $nLeap
-			+ $nIsStd 
-			+ $nIsGMT
-			+ $nChar
-		    }]
+	set seek [expr {
+	    44
+	    + 5 * $nTime
+	    + 6 * $nType
+	    + 4 * $nLeap
+	    + $nIsStd
+	    + $nIsGMT
+	    + $nChar
+	}]
 	binary scan $d @${seek}a4a1x15IIIIII \
 	    magic version nIsGMT nIsStd nLeap nTime nType nChar
 	if {$magic ne {TZif}} {
@@ -3530,9 +3458,9 @@ proc ::tcl::clock::ReadZoneinfoFile {fileName fname} {
     }
     set codes [linsert $codes 0 0]
 
-    # Next come ${nType} time type descriptions, each of which has an
-    # offset (seconds east of GMT), a DST indicator, and an index into
-    # the abbreviation text.
+    # Next come ${nType} time type descriptions, each of which has an offset
+    # (seconds east of GMT), a DST indicator, and an index into the
+    # abbreviation text.
 
     for { set i 0 } { $i < $nType } { incr i } {
 	binary scan $d @${seek}Icc gmtOff isDst abbrInd
@@ -3540,10 +3468,10 @@ proc ::tcl::clock::ReadZoneinfoFile {fileName fname} {
 	incr seek 6
     }
 
-    # Next come $nChar characters of time zone name abbreviations,
-    # which are null-terminated.
-    # We build them up into a dictionary indexed by character index,
-    # because that's what's in the indices above.
+    # Next come $nChar characters of time zone name abbreviations, which are
+    # null-terminated.
+    # We build them up into a dictionary indexed by character index, because
+    # that's what's in the indices above.
 
     binary scan $d @${seek}a${nChar} abbrs
     incr seek ${nChar}
@@ -3573,8 +3501,8 @@ proc ::tcl::clock::ReadZoneinfoFile {fileName fname} {
     }
 
     # In a version 2 file, there is also a POSIX-style time zone description
-    # at the very end of the file.  To get to it, skip over
-    # nLeap leap second values (8 bytes each),
+    # at the very end of the file.  To get to it, skip over nLeap leap second
+    # values (8 bytes each),
     # nIsStd standard/DST indicators and nIsGMT UTC/local indicators.
 
     if {$version eq {2}} {
@@ -3607,8 +3535,8 @@ proc ::tcl::clock::ReadZoneinfoFile {fileName fname} {
 #	tz	Time zone specifier to be interpreted
 #
 # Results:
-#	Returns a dictionary whose values contain the various pieces of
-#	the time zone specification.
+#	Returns a dictionary whose values contain the various pieces of the
+#	time zone specification.
 #
 # Side effects:
 #	None.
@@ -3619,7 +3547,7 @@ proc ::tcl::clock::ReadZoneinfoFile {fileName fname} {
 # The following keys are present in the dictionary:
 #	stdName - Name of the time zone when Daylight Saving Time
 #		  is not in effect.
-#	stdSignum - Sign (+, -, or empty) of the offset from Greenwich 
+#	stdSignum - Sign (+, -, or empty) of the offset from Greenwich
 #		    to the given (non-DST) time zone.  + and the empty
 #		    string denote zones west of Greenwich, - denotes east
 #		    of Greenwich; this is contrary to the ISO convention
@@ -3664,14 +3592,13 @@ proc ::tcl::clock::ReadZoneinfoFile {fileName fname} {
 #	endHours, endMinutes, endSeconds -
 #		Specify the end of DST in the same way that the start* fields
 #		specify the beginning of DST.
-#		
-# This procedure serves only to break the time specifier into fields.
-# No attempt is made to canonicalize the fields or supply default values.
+#
+# This procedure serves only to break the time specifier into fields.  No
+# attempt is made to canonicalize the fields or supply default values.
 #
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::ParsePosixTimeZone { tz } {
-
     if {[regexp -expanded -nocase -- {
 	^
 	# 1 - Standard time zone name
@@ -3682,8 +3609,8 @@ proc ::tcl::clock::ParsePosixTimeZone { tz } {
 	([[:digit:]]{1,2})
 	(?:
 	    # 4 - Standard time zone offset, minutes
-	    : ([[:digit:]]{1,2}) 
-	    (?: 
+	    : ([[:digit:]]{1,2})
+	    (?:
 	        # 5 - Standard time zone offset, seconds
 		: ([[:digit:]]{1,2} )
 	    )?
@@ -3699,8 +3626,8 @@ proc ::tcl::clock::ParsePosixTimeZone { tz } {
 		    ([[:digit:]]{1,2})
 		    (?:
 			# 9 - DST time zone offset, minutes
-			: ([[:digit:]]{1,2}) 
-			(?: 
+			: ([[:digit:]]{1,2})
+			(?:
 		            # 10 - DST time zone offset, seconds
 			    : ([[:digit:]]{1,2})
 			)?
@@ -3713,8 +3640,8 @@ proc ::tcl::clock::ParsePosixTimeZone { tz } {
 		        ( J ? )	( [[:digit:]]+ )
                         | M
 			# 13 - Month number 14 - Week of month 15 - Day of week
-			( [[:digit:]] + ) 
-			[.] ( [[:digit:]] + ) 
+			( [[:digit:]] + )
+			[.] ( [[:digit:]] + )
 			[.] ( [[:digit:]] + )
 		    )
 		    (?:
@@ -3735,8 +3662,8 @@ proc ::tcl::clock::ParsePosixTimeZone { tz } {
 		        ( J ? )	( [[:digit:]]+ )
                         | M
 			# 21 - Month number 22 - Week of month 23 - Day of week
-			( [[:digit:]] + ) 
-			[.] ( [[:digit:]] + ) 
+			( [[:digit:]] + )
+			[.] ( [[:digit:]] + )
 			[.] ( [[:digit:]] + )
 		    )
 		    (?:
@@ -3763,27 +3690,21 @@ proc ::tcl::clock::ParsePosixTimeZone { tz } {
 	     x(endJ) x(endDayOfYear) \
 	     x(endMonth) x(endWeekOfMonth) x(endDayOfWeek) \
 	     x(endHours) x(endMinutes) x(endSeconds)] } {
-
 	# it's a good timezone
 
 	return [array get x]
-
-    } else {
-
-	return -code error\
-	    -errorcode [list CLOCK badTimeZone $tz] \
-	    "unable to parse time zone specification \"$tz\""
-
     }
 
+    return -code error\
+	-errorcode [list CLOCK badTimeZone $tz] \
+	"unable to parse time zone specification \"$tz\""
 }
 
 #----------------------------------------------------------------------
 #
 # ProcessPosixTimeZone --
 #
-#	Handle a Posix time zone after it's been broken out into
-#	fields.
+#	Handle a Posix time zone after it's been broken out into fields.
 #
 # Parameters:
 #	z - Dictionary returned from 'ParsePosixTimeZone'
@@ -3797,7 +3718,6 @@ proc ::tcl::clock::ParsePosixTimeZone { tz } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::ProcessPosixTimeZone { z } {
-
     variable MINWIDE
     variable TZData
 
@@ -3812,20 +3732,20 @@ proc ::tcl::clock::ProcessPosixTimeZone { z } {
     } else {
 	set stdSignum -1
     }
-    set stdHours [lindex [::scan [dict get $z stdHours] %d] 0] 
+    set stdHours [lindex [::scan [dict get $z stdHours] %d] 0]
     if { [dict get $z stdMinutes] ne {} } {
-	set stdMinutes [lindex [::scan [dict get $z stdMinutes] %d] 0] 
+	set stdMinutes [lindex [::scan [dict get $z stdMinutes] %d] 0]
     } else {
 	set stdMinutes 0
     }
     if { [dict get $z stdSeconds] ne {} } {
-	set stdSeconds [lindex [::scan [dict get $z stdSeconds] %d] 0] 
+	set stdSeconds [lindex [::scan [dict get $z stdSeconds] %d] 0]
     } else {
 	set stdSeconds 0
     }
-    set stdOffset [expr { ( ( $stdHours * 60 + $stdMinutes )
-			    * 60 + $stdSeconds )
-			  * $stdSignum }]
+    set stdOffset [expr {
+	(($stdHours * 60 + $stdMinutes) * 60 + $stdSeconds) * $stdSignum
+    }]
     set data [list [list $MINWIDE $stdOffset 0 $stdName]]
 
     # If there's no daylight zone, we're done
@@ -3848,20 +3768,20 @@ proc ::tcl::clock::ProcessPosixTimeZone { z } {
     if { [dict get $z dstHours] eq {} } {
 	set dstOffset [expr { 3600 + $stdOffset }]
     } else {
-	set dstHours [lindex [::scan [dict get $z dstHours] %d] 0] 
+	set dstHours [lindex [::scan [dict get $z dstHours] %d] 0]
 	if { [dict get $z dstMinutes] ne {} } {
-	    set dstMinutes [lindex [::scan [dict get $z dstMinutes] %d] 0] 
+	    set dstMinutes [lindex [::scan [dict get $z dstMinutes] %d] 0]
 	} else {
 	    set dstMinutes 0
 	}
 	if { [dict get $z dstSeconds] ne {} } {
-	    set dstSeconds [lindex [::scan [dict get $z dstSeconds] %d] 0] 
+	    set dstSeconds [lindex [::scan [dict get $z dstSeconds] %d] 0]
 	} else {
 	    set dstSeconds 0
 	}
-	set dstOffset [expr { ( ( $dstHours * 60 + $dstMinutes )
-				* 60 + $dstSeconds )
-			      * $dstSignum }]
+	set dstOffset [expr {
+	    (($dstHours*60 + $dstMinutes) * 60 + $dstSeconds) * $dstSignum
+	}]
     }
 
     # Fill in defaults for European or US DST rules
@@ -3870,8 +3790,10 @@ proc ::tcl::clock::ProcessPosixTimeZone { z } {
     # US end time is the first Sunday in November.
     # EU end time is the last Sunday in October
 
-    if { [dict get $z startDayOfYear] eq {} 
-	 && [dict get $z startMonth] eq {} } {
+    if {
+	[dict get $z startDayOfYear] eq {}
+	&& [dict get $z startMonth] eq {}
+    } then {
 	if {($stdSignum * $stdHours>=0) && ($stdSignum * $stdHours<=12)} {
 	    # EU
 	    dict set z startWeekOfMonth 5
@@ -3890,8 +3812,10 @@ proc ::tcl::clock::ProcessPosixTimeZone { z } {
 	dict set z startMinutes 0
 	dict set z startSeconds 0
     }
-    if { [dict get $z endDayOfYear] eq {} 
-	 && [dict get $z endMonth] eq {} } {
+    if {
+	[dict get $z endDayOfYear] eq {}
+	&& [dict get $z endMonth] eq {}
+    } then {
 	if {($stdSignum * $stdHours>=0) && ($stdSignum * $stdHours<=12)} {
 	    # EU
 	    dict set z endMonth 10
@@ -3914,7 +3838,7 @@ proc ::tcl::clock::ProcessPosixTimeZone { z } {
 
     # Put DST in effect in all years from 1916 to 2099.
 
-    for { set y 1916 } { $y < 2099 } { incr y } {
+    for { set y 1916 } { $y < 2100 } { incr y } {
 	set startTime [DeterminePosixDSTTime $z start $y]
 	incr startTime [expr { - wide($stdOffset) }]
 	set endTime [DeterminePosixDSTTime $z end $y]
@@ -3931,15 +3855,14 @@ proc ::tcl::clock::ProcessPosixTimeZone { z } {
     }
 
     return $data
-    
-}    
+}
 
 #----------------------------------------------------------------------
 #
 # DeterminePosixDSTTime --
 #
-#	Determines the time that Daylight Saving Time starts or ends
-#	from a Posix time zone specification.
+#	Determines the time that Daylight Saving Time starts or ends from a
+#	Posix time zone specification.
 #
 # Parameters:
 #	z - Time zone data returned from ParsePosixTimeZone.
@@ -3949,8 +3872,8 @@ proc ::tcl::clock::ProcessPosixTimeZone { z } {
 #	y - The year for which the transition time is to be determined.
 #
 # Results:
-#	Returns the transition time as a count of seconds from
-#	the epoch.  The time is relative to the wall clock, not UTC.
+#	Returns the transition time as a count of seconds from the epoch.  The
+#	time is relative to the wall clock, not UTC.
 #
 #----------------------------------------------------------------------
 
@@ -3967,14 +3890,13 @@ proc ::tcl::clock::DeterminePosixDSTTime { z bound y } {
 	# Time was specified as a day of the year
 
 	if { [dict get $z ${bound}J] ne {}
-	     && [IsGregorianLeapYear $y] 
+	     && [IsGregorianLeapYear $y]
 	     && ( $doy > $FEB_28 ) } {
 	    incr doy
 	}
 	dict set date dayOfYear $doy
 	set date [GetJulianDayFromEraYearDay $date[set date {}] 2361222]
     } else {
-
 	# Time was specified as a day of the week within a month
 
 	dict set date month [dict get $z ${bound}Month]
@@ -3989,8 +3911,9 @@ proc ::tcl::clock::DeterminePosixDSTTime { z bound y } {
     }
 
     set jd [dict get $date julianDay]
-    set seconds [expr { wide($jd) * wide(86400)
-			- wide(210866803200) }]
+    set seconds [expr {
+	wide($jd) * wide(86400) - wide(210866803200)
+    }]
 
     set h [dict get $z ${bound}Hours]
     if { $h eq {} } {
@@ -4012,7 +3935,6 @@ proc ::tcl::clock::DeterminePosixDSTTime { z bound y } {
     }
     set tod [expr { ( $h * 60 + $m ) * 60 + $s }]
     return [expr { $seconds + $tod }]
-
 }
 
 #----------------------------------------------------------------------
@@ -4030,26 +3952,26 @@ proc ::tcl::clock::DeterminePosixDSTTime { z bound y } {
 #	         for the target locale.
 #
 # Results:
-#	Returns the dictionary, augmented with the keys, 'localeEra'
-#	and 'localeYear'.
+#	Returns the dictionary, augmented with the keys, 'localeEra' and
+#	'localeYear'.
 #
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::GetLocaleEra { date etable } {
-
     set index [BSearch $etable [dict get $date localSeconds]]
     if { $index < 0} {
 	dict set date localeEra \
 	    [::format %02d [expr { [dict get $date year] / 100 }]]
-	dict set date localeYear \
-	    [expr { [dict get $date year] % 100 }]
+	dict set date localeYear [expr {
+	    [dict get $date year] % 100
+	}]
     } else {
 	dict set date localeEra [lindex $etable $index 1]
-	dict set date localeYear [expr { [dict get $date year] 
-					 - [lindex $etable $index 2] }]
+	dict set date localeYear [expr {
+	    [dict get $date year] - [lindex $etable $index 2]
+	}]
     }
     return $date
-
 }
 
 #----------------------------------------------------------------------
@@ -4067,10 +3989,9 @@ proc ::tcl::clock::GetLocaleEra { date etable } {
 #		adopted in the current locale.
 #
 # Results:
-#	Returns the given dictionary augmented with a 'julianDay' key
-#	whose value is the desired Julian Day Number, and a 'gregorian'
-#	key that specifies whether the calendar is Gregorian (1) or
-#	Julian (0).
+#	Returns the given dictionary augmented with a 'julianDay' key whose
+#	value is the desired Julian Day Number, and a 'gregorian' key that
+#	specifies whether the calendar is Gregorian (1) or Julian (0).
 #
 # Side effects:
 #	None.
@@ -4081,7 +4002,6 @@ proc ::tcl::clock::GetLocaleEra { date etable } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::GetJulianDayFromEraYearDay {date changeover} {
-
     # Get absolute year number from the civil year
 
     switch -exact -- [dict get $date era] {
@@ -4097,21 +4017,25 @@ proc ::tcl::clock::GetJulianDayFromEraYearDay {date changeover} {
     # Try the Gregorian calendar first.
 
     dict set date gregorian 1
-    set jd [expr { 1721425
-		   + [dict get $date dayOfYear]
-		   + ( 365 * $ym1 )
-		   + ( $ym1 / 4 )
-		   - ( $ym1 / 100 )
-		   + ( $ym1 / 400 ) }]
-    
+    set jd [expr {
+	1721425
+	+ [dict get $date dayOfYear]
+	+ ( 365 * $ym1 )
+	+ ( $ym1 / 4 )
+	- ( $ym1 / 100 )
+	+ ( $ym1 / 400 )
+    }]
+
     # If the date is before the Gregorian change, use the Julian calendar.
 
     if { $jd < $changeover } {
 	dict set date gregorian 0
-	set jd [expr { 1721423
-		       + [dict get $date dayOfYear]
-		       + ( 365 * $ym1 )
-		       + ( $ym1 / 4 ) }]
+	set jd [expr {
+	    1721423
+	    + [dict get $date dayOfYear]
+	    + ( 365 * $ym1 )
+	    + ( $ym1 / 4 )
+	}]
     }
 
     dict set date julianDay $jd
@@ -4122,8 +4046,8 @@ proc ::tcl::clock::GetJulianDayFromEraYearDay {date changeover} {
 #
 # GetJulianDayFromEraYearMonthWeekDay --
 #
-#	Determines the Julian Day number corresponding to the nth
-#	given day-of-the-week in a given month.
+#	Determines the Julian Day number corresponding to the nth given
+#	day-of-the-week in a given month.
 #
 # Parameters:
 #	date - Dictionary containing the keys, 'era', 'year', 'month'
@@ -4142,10 +4066,9 @@ proc ::tcl::clock::GetJulianDayFromEraYearDay {date changeover} {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::GetJulianDayFromEraYearMonthWeekDay {date changeover} {
-
-    # Come up with a reference day; either the zeroeth day of the
-    # given month (dayOfWeekInMonth >= 0) or the seventh day of the
-    # following month (dayOfWeekInMonth < 0)
+    # Come up with a reference day; either the zeroeth day of the given month
+    # (dayOfWeekInMonth >= 0) or the seventh day of the following month
+    # (dayOfWeekInMonth < 0)
 
     set date2 $date
     set week [dict get $date dayOfWeekInMonth]
@@ -4161,7 +4084,6 @@ proc ::tcl::clock::GetJulianDayFromEraYearMonthWeekDay {date changeover} {
 		 [dict get $date2 julianDay]]
     dict set date julianDay [expr { $wd0 + 7 * $week }]
     return $date
-
 }
 
 #----------------------------------------------------------------------
@@ -4184,9 +4106,8 @@ proc ::tcl::clock::GetJulianDayFromEraYearMonthWeekDay {date changeover} {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::IsGregorianLeapYear { date } {
-
     switch -exact -- [dict get $date era] {
-	BCE { 
+	BCE {
 	    set year [expr { 1 - [dict get $date year]}]
 	}
 	CE {
@@ -4204,15 +4125,14 @@ proc ::tcl::clock::IsGregorianLeapYear { date } {
     } else {
 	return 1
     }
-
 }
 
 #----------------------------------------------------------------------
 #
 # WeekdayOnOrBefore --
 #
-#	Determine the nearest day of week (given by the 'weekday'
-#	parameter, Sunday==0) on or before a given Julian Day.
+#	Determine the nearest day of week (given by the 'weekday' parameter,
+#	Sunday==0) on or before a given Julian Day.
 #
 # Parameters:
 #	weekday -- Day of the week
@@ -4227,18 +4147,16 @@ proc ::tcl::clock::IsGregorianLeapYear { date } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::WeekdayOnOrBefore { weekday j } {
-
     set k [expr { ( $weekday + 6 )  % 7 }]
     return [expr { $j - ( $j - $k ) % 7 }]
-
 }
 
 #----------------------------------------------------------------------
 #
 # BSearch --
 #
-#	Service procedure that does binary search in several places
-#	inside the 'clock' command.
+#	Service procedure that does binary search in several places inside the
+#	'clock' command.
 #
 # Parameters:
 #	list - List of lists, sorted in ascending order by the
@@ -4246,8 +4164,8 @@ proc ::tcl::clock::WeekdayOnOrBefore { weekday j } {
 #	key - Value to search for
 #
 # Results:
-#	Returns the index of the greatest element in $list that is less
-#	than or equal to $key.
+#	Returns the index of the greatest element in $list that is less than
+#	or equal to $key.
 #
 # Side effects:
 #	None.
@@ -4255,7 +4173,6 @@ proc ::tcl::clock::WeekdayOnOrBefore { weekday j } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::BSearch { list key } {
-
     if {[llength $list] == 0} {
 	return -1
     }
@@ -4267,13 +4184,12 @@ proc ::tcl::clock::BSearch { list key } {
     set u [expr { [llength $list] - 1 }]
 
     while { $l < $u } {
-
 	# At this point, we know that
 	#   $k >= [lindex $list $l 0]
 	#   Either $u == [llength $list] or else $k < [lindex $list $u+1 0]
 	# We find the midpoint of the interval {l,u} rounded UP, compare
-	# against it, and set l or u to maintain the invariant.  Note
-	# that the interval shrinks at each step, guaranteeing convergence.
+	# against it, and set l or u to maintain the invariant.  Note that the
+	# interval shrinks at each step, guaranteeing convergence.
 
 	set m [expr { ( $l + $u + 1 ) / 2 }]
 	if { $key >= [lindex $list $m 0] } {
@@ -4317,15 +4233,14 @@ proc ::tcl::clock::BSearch { list key } {
 #	order.
 #
 # Notes:
-#	It is possible that adding a number of months or years will adjust
-#	the day of the month as well.  For instance, the time at
-#	one month after 31 January is either 28 or 29 February, because
-#	February has fewer than 31 days.
+#	It is possible that adding a number of months or years will adjust the
+#	day of the month as well.  For instance, the time at one month after
+#	31 January is either 28 or 29 February, because February has fewer
+#	than 31 days.
 #
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::add { clockval args } {
-
     if { [llength $args] % 2 != 0 } {
 	set cmdName "clock add"
 	return -code error \
@@ -4344,15 +4259,10 @@ proc ::tcl::clock::add { clockval args } {
     set timezone [GetSystemTimeZone]
 
     foreach { a b } $args {
-
 	if { [string is integer -strict $a] } {
-
 	    lappend offsets $a $b
-
 	} else {
-
 	    switch -exact -- $a {
-
 		-g - -gm - -gmt {
 		    set gmt $b
 		}
@@ -4364,9 +4274,8 @@ proc ::tcl::clock::add { clockval args } {
 		    set timezone $b
 		}
 		default {
-		    return -code error \
-			-errorcode [list CLOCK badSwitch $a] \
-			"bad switch \"$a\",\
+		    throw [list CLOCK badOption $a] \
+			"bad option \"$a\",\
                          must be -gmt, -locale or -timezone"
 		}
 	    }
@@ -4381,20 +4290,16 @@ proc ::tcl::clock::add { clockval args } {
 	    "cannot use -gmt and -timezone in same call"
     }
     if { [catch { expr { wide($clockval) } } result] } {
-	return -code error \
-	    "expected integer but got \"$clockval\"" 
+	return -code error "expected integer but got \"$clockval\""
     }
-    if { ![string is boolean $gmt] } {
-	return -code error \
-	    "expected boolean value but got \"$gmt\""
-    } else {
-	if { $gmt } {
-	    set timezone :GMT
-	}
+    if { ![string is boolean -strict $gmt] } {
+	return -code error "expected boolean value but got \"$gmt\""
+    } elseif { $gmt } {
+	set timezone :GMT
     }
 
     EnterLocale $locale
-    
+
     set changeover [mc GREGORIAN_CHANGE_DATE]
 
     if {[catch {SetupTimeZone $timezone} retval opts]} {
@@ -4402,29 +4307,25 @@ proc ::tcl::clock::add { clockval args } {
 	return -options $opts $retval
     }
 
-    set status [catch {
-
+    try {
 	foreach { quantity unit } $offsets {
-
 	    switch -exact -- $unit {
-
 		years - year {
-		    set clockval \
-			[AddMonths [expr { 12 * $quantity }] \
-			     $clockval $timezone $changeover]
+		    set clockval [AddMonths [expr { 12 * $quantity }] \
+			    $clockval $timezone $changeover]
 		}
 		months - month {
 		    set clockval [AddMonths $quantity $clockval $timezone \
-				     $changeover]
+			    $changeover]
 		}
 
 		weeks - week {
 		    set clockval [AddDays [expr { 7 * $quantity }] \
-				      $clockval $timezone $changeover]
+			    $clockval $timezone $changeover]
 		}
 		days - day {
 		    set clockval [AddDays $quantity $clockval $timezone \
-				      $changeover]
+			    $changeover]
 		}
 
 		hours - hour {
@@ -4438,27 +4339,18 @@ proc ::tcl::clock::add { clockval args } {
 		}
 
 		default {
-		    error "unknown unit \"$unit\", must be \
-                        years, months, weeks, days, hours, minutes or seconds" \
-			  "unknown unit \"$unit\", must be \
-                        years, months, weeks, days, hours, minutes or seconds" \
-			[list CLOCK badUnit $unit]
+		    throw [list CLOCK badUnit $unit] \
+			"unknown unit \"$unit\", must be \
+                        years, months, weeks, days, hours, minutes or seconds"
 		}
 	    }
 	}
-    } result opts]
-
-    # Restore the locale
-
-    if { $status == 1 } {
-	if { [lindex [dict get $opts -errorcode] 0] eq {CLOCK} } {
-	    dict unset opts -errorinfo
-	}
-	return -options $opts $result
-    } else {
 	return $clockval
+    } trap CLOCK {result opts} {
+	# Conceal the innards of [clock] when it's an expected error
+	dict unset opts -errorinfo
+	return -options $opts $result
     }
-
 }
 
 #----------------------------------------------------------------------
@@ -4491,8 +4383,9 @@ proc ::tcl::clock::AddMonths { months clockval timezone changeover } {
     # Convert the time to year, month, day, and fraction of day.
 
     set date [GetDateFields $clockval $TZData($timezone) $changeover]
-    dict set date secondOfDay [expr { [dict get $date localSeconds]
-				      % 86400 }]
+    dict set date secondOfDay [expr {
+	[dict get $date localSeconds] % 86400
+    }]
     dict set date tzName $timezone
 
     # Add the requisite number of months
@@ -4521,10 +4414,11 @@ proc ::tcl::clock::AddMonths { months clockval timezone changeover } {
     set date [GetJulianDayFromEraYearMonthDay \
 		  $date[set date {}]\
 		  $changeover]
-    dict set date localSeconds \
-	[expr { -210866803200
-		+ ( 86400 * wide([dict get $date julianDay]) )
-		+ [dict get $date secondOfDay] }]
+    dict set date localSeconds [expr {
+	-210866803200
+	+ ( 86400 * wide([dict get $date julianDay]) )
+	+ [dict get $date secondOfDay]
+    }]
     set date [ConvertLocalToUTC $date[set date {}] $TZData($timezone) \
 		 $changeover]
 
@@ -4536,8 +4430,8 @@ proc ::tcl::clock::AddMonths { months clockval timezone changeover } {
 #
 # AddDays --
 #
-#	Add a given number of days to a given clock value in a given
-#	time zone.
+#	Add a given number of days to a given clock value in a given time
+#	zone.
 #
 # Parameters:
 #	days - Number of days to add (may be negative)
@@ -4547,8 +4441,7 @@ proc ::tcl::clock::AddMonths { months clockval timezone changeover } {
 #		     in the target locale.
 #
 # Results:
-#	Returns the new clock value as a number of seconds since
-#	the epoch.
+#	Returns the new clock value as a number of seconds since the epoch.
 #
 # Side effects:
 #	None.
@@ -4556,14 +4449,14 @@ proc ::tcl::clock::AddMonths { months clockval timezone changeover } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::AddDays { days clockval timezone changeover } {
-
     variable TZData
 
     # Convert the time to Julian Day
 
     set date [GetDateFields $clockval $TZData($timezone) $changeover]
-    dict set date secondOfDay [expr { [dict get $date localSeconds]
-				      % 86400 }]
+    dict set date secondOfDay [expr {
+	[dict get $date localSeconds] % 86400
+    }]
     dict set date tzName $timezone
 
     # Add the requisite number of days
@@ -4572,10 +4465,11 @@ proc ::tcl::clock::AddDays { days clockval timezone changeover } {
 
     # Reconvert to a number of seconds
 
-    dict set date localSeconds \
-	[expr { -210866803200
-		+ ( 86400 * wide([dict get $date julianDay]) )
-		+ [dict get $date secondOfDay] }]
+    dict set date localSeconds [expr {
+	-210866803200
+	+ ( 86400 * wide([dict get $date julianDay]) )
+	+ [dict get $date secondOfDay]
+    }]
     set date [ConvertLocalToUTC $date[set date {}] $TZData($timezone) \
 		  $changeover]
 
@@ -4601,7 +4495,6 @@ proc ::tcl::clock::AddDays { days clockval timezone changeover } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::ClearCaches {} {
-
     variable FormatProc
     variable LocaleNumeralCache
     variable CachedSystemTimeZone
@@ -4622,5 +4515,4 @@ proc ::tcl::clock::ClearCaches {} {
     catch {unset CachedSystemTimeZone}
     set TimeZoneBad {}
     InitTZData
-
 }
diff --git a/library/dde/pkgIndex.tcl b/library/dde/pkgIndex.tcl
index ce8276b..4cf73d0 100644
--- a/library/dde/pkgIndex.tcl
+++ b/library/dde/pkgIndex.tcl
@@ -1,7 +1,7 @@
 if {([info commands ::tcl::pkgconfig] eq "")
 	|| ([info sharedlibextension] ne ".dll")} return
 if {[::tcl::pkgconfig get debug]} {
-    package ifneeded dde 1.4.0b1 [list load [file join $dir tcldde14g.dll] dde]
+    package ifneeded dde 1.4.0 [list load [file join $dir tcldde14g.dll] dde]
 } else {
-    package ifneeded dde 1.4.0b1 [list load [file join $dir tcldde14.dll] dde]
+    package ifneeded dde 1.4.0 [list load [file join $dir tcldde14.dll] dde]
 }
diff --git a/library/http/http.tcl b/library/http/http.tcl
index 2653c3e..5a05fa0 100644
--- a/library/http/http.tcl
+++ b/library/http/http.tcl
@@ -11,7 +11,7 @@
 package require Tcl 8.6
 # Keep this in sync with pkgIndex.tcl and with the install directories in
 # Makefiles
-package provide http 2.8.4
+package provide http 2.8.9
 
 namespace eval http {
     # Allow resourcing to not clobber existing data
@@ -113,7 +113,7 @@ if {[info command http::Log] eq {}} {proc http::Log {args} {}}
 
 proc http::register {proto port command} {
     variable urlTypes
-    set urlTypes($proto) [list $port $command]
+    set urlTypes([string tolower $proto]) [list $port $command]
 }
 
 # http::unregister --
@@ -127,11 +127,12 @@ proc http::register {proto port command} {
 
 proc http::unregister {proto} {
     variable urlTypes
-    if {![info exists urlTypes($proto)]} {
+    set lower [string tolower $proto]
+    if {![info exists urlTypes($lower)]} {
 	return -code error "unsupported url type \"$proto\""
     }
-    set old $urlTypes($proto)
-    unset urlTypes($proto)
+    set old $urlTypes($lower)
+    unset urlTypes($lower)
     return $old
 }
 
@@ -205,15 +206,13 @@ proc http::Finish {token {errormsg ""} {skipCB 0}} {
     if {[info exists state(after)]} {
 	after cancel $state(after)
     }
-    if {[info exists state(-command)] && !$skipCB} {
-	if {[catch {eval $state(-command) {$token}} err]} {
-	    if {$errormsg eq ""} {
-		set state(error) [list $err $errorInfo $errorCode]
-		set state(status) error
-	    }
+    if {[info exists state(-command)] && !$skipCB
+	    && ![info exists state(done-command-cb)]} {
+	set state(done-command-cb) yes
+	if {[catch {eval $state(-command) {$token}} err] && $errormsg eq ""} {
+	    set state(error) [list $err $errorInfo $errorCode]
+	    set state(status) error
 	}
-	# Command callback may already have unset our state
-	unset -nocomplain state(-command)
     }
 }
 
@@ -396,13 +395,16 @@ proc http::geturl {url args} {
     # First, before the colon, is the protocol scheme (e.g. http)
     # Second, for HTTP-like protocols, is the authority
     #	The authority is preceded by // and lasts up to (but not including)
-    #	the following / and it identifies up to four parts, of which only one,
-    #	the host, is required (if an authority is present at all). All other
-    #	parts of the authority (user name, password, port number) are optional.
+    #	the following / or ? and it identifies up to four parts, of which
+    #	only one, the host, is required (if an authority is present at all).
+    #	All other parts of the authority (user name, password, port number)
+    #	are optional.
     # Third is the resource name, which is split into two parts at a ?
     #	The first part (from the single "/" up to "?") is the path, and the
     #	second part (from that "?" up to "#") is the query. *HOWEVER*, we do
     #	not need to separate them; we send the whole lot to the server.
+    #	Both, path and query are allowed to be missing, including their
+    #	delimiting character.
     # Fourth is the fragment identifier, which is everything after the first
     #	"#" in the URL. The fragment identifier MUST NOT be sent to the server
     #	and indeed, we don't bother to validate it (it could be an error to
@@ -439,7 +441,7 @@ proc http::geturl {url args} {
 	    )
 	    (?: : (\d+) )?		# <port part of authority>
 	)?
-	( / [^\#]*)?			# <path> (including query)
+	( [/\?] [^\#]*)?		# <path> (including query)
 	(?: \# (.*) )?			# <fragment>
 	$
     }
@@ -483,6 +485,12 @@ proc http::geturl {url args} {
 	}
     }
     if {$srvurl ne ""} {
+	# RFC 3986 allows empty paths (not even a /), but servers
+	# return 400 if the path in the HTTP request doesn't start
+	# with / , so add it here if needed.
+	if {[string index $srvurl 0] ne "/"} {
+	    set srvurl /$srvurl
+	}
 	# Check for validity according to RFC 3986, Appendix A
 	set validityRE {(?xi)
 	    ^
@@ -507,12 +515,13 @@ proc http::geturl {url args} {
     if {$proto eq ""} {
 	set proto http
     }
-    if {![info exists urlTypes($proto)]} {
+    set lower [string tolower $proto]
+    if {![info exists urlTypes($lower)]} {
 	unset $token
 	return -code error "Unsupported URL type \"$proto\""
     }
-    set defport [lindex $urlTypes($proto) 0]
-    set defcmd [lindex $urlTypes($proto) 1]
+    set defport [lindex $urlTypes($lower) 0]
+    set defcmd [lindex $urlTypes($lower) 1]
 
     if {$port eq ""} {
 	set port $defport
@@ -539,11 +548,10 @@ proc http::geturl {url args} {
     # If a timeout is specified we set up the after event and arrange for an
     # asynchronous socket connection.
 
-    set sockopts [list]
+    set sockopts [list -async]
     if {$state(-timeout) > 0} {
 	set state(after) [after $state(-timeout) \
 		[list http::reset $token timeout]]
-	lappend sockopts -async
     }
 
     # If we are using the proxy, we must pass in the full URL that includes
@@ -558,6 +566,10 @@ proc http::geturl {url args} {
     # Proxy connections aren't shared among different hosts.
     set state(socketinfo) $host:$port
 
+    # Save the accept types at this point to prevent a race condition. [Bug
+    # c11a51c482]
+    set state(accept-types) $http(-accept)
+
     # See if we are supposed to use a previously opened channel.
     if {$state(-keepalive)} {
 	variable socketmap
@@ -599,10 +611,15 @@ proc http::geturl {url args} {
         set socketmap($state(socketinfo)) $sock
     }
 
-    # Wait for the connection to complete.
+    if {![info exists phost]} {
+	set phost ""
+    }
+    fileevent $sock writable [list http::Connect $token $proto $phost $srvurl]
 
-    if {$state(-timeout) > 0} {
-	fileevent $sock writable [list http::Connect $token]
+    # Wait for the connection to complete.
+    if {![info exists state(-command)]} {
+	# geturl does EVERYTHING asynchronously, so if the user
+	# calls it synchronously, we just do a wait here.
 	http::wait $token
 
 	if {![info exists state]} {
@@ -618,13 +635,42 @@ proc http::geturl {url args} {
 	    set err [lindex $state(error) 0]
 	    cleanup $token
 	    return -code error $err
-	} elseif {$state(status) ne "connect"} {
-	    # Likely to be connection timeout
-	    return $token
 	}
-	set state(status) ""
     }
 
+    return $token
+}
+
+# http::Connected --
+#
+#	Callback used when the connection to the HTTP server is actually
+#	established.
+#
+# Arguments:
+#       token	State token.
+#       proto	What protocol (http, https, etc.) was used to connect.
+#	phost	Are we using keep-alive? Non-empty if yes.
+#	srvurl	Service-local URL that we're requesting
+# Results:
+#	None.
+
+proc http::Connected {token proto phost srvurl} {
+    variable http
+    variable urlTypes
+
+    variable $token
+    upvar 0 $token state
+
+    # Set back the variables needed here
+    set sock $state(sock)
+    set isQueryChannel [info exists state(-querychannel)]
+    set isQuery [info exists state(-query)]
+    set host [lindex [split $state(socketinfo) :] 0]
+    set port [lindex [split $state(socketinfo) :] 1]
+
+    set lower [string tolower $proto]
+    set defport [lindex $urlTypes($lower) 0]
+
     # Send data in cr-lf format, but accept any line terminators
 
     fconfigure $sock -translation {auto crlf} -buffersize $state(-blocksize)
@@ -661,13 +707,12 @@ proc http::geturl {url args} {
     if {[info exists state(-handler)]} {
 	set state(-protocol) 1.0
     }
+    set accept_types_seen 0
     if {[catch {
 	puts $sock "$how $srvurl HTTP/$state(-protocol)"
-	puts $sock "Accept: $http(-accept)"
-	array set hdrs $state(-headers)
-	if {[info exists hdrs(Host)]} {
+	if {[dict exists $state(-headers) Host]} {
 	    # Allow Host spoofing. [Bug 928154]
-	    puts $sock "Host: $hdrs(Host)"
+	    puts $sock "Host: [dict get $state(-headers) Host]"
 	} elseif {$port == $defport} {
 	    # Don't add port in this case, to handle broken servers. [Bug
 	    # #504508]
@@ -675,7 +720,6 @@ proc http::geturl {url args} {
 	} else {
 	    puts $sock "Host: $host:$port"
 	}
-	unset hdrs
 	puts $sock "User-Agent: $http(-useragent)"
         if {$state(-protocol) == 1.0 && $state(-keepalive)} {
 	    puts $sock "Connection: keep-alive"
@@ -688,18 +732,21 @@ proc http::geturl {url args} {
         }
         set accept_encoding_seen 0
 	set content_type_seen 0
-	foreach {key value} $state(-headers) {
+	dict for {key value} $state(-headers) {
+	    set value [string map [list \n "" \r ""] $value]
+	    set key [string map {" " -} [string trim $key]]
 	    if {[string equal -nocase $key "host"]} {
 		continue
 	    }
 	    if {[string equal -nocase $key "accept-encoding"]} {
 		set accept_encoding_seen 1
 	    }
+	    if {[string equal -nocase $key "accept"]} {
+		set accept_types_seen 1
+	    }
 	    if {[string equal -nocase $key "content-type"]} {
 		set content_type_seen 1
 	    }
-	    set value [string map [list \n "" \r ""] $value]
-	    set key [string trim $key]
 	    if {[string equal -nocase $key "content-length"]} {
 		set contDone 1
 		set state(querylength) $value
@@ -708,8 +755,13 @@ proc http::geturl {url args} {
 		puts $sock "$key: $value"
 	    }
 	}
+	# Allow overriding the Accept header on a per-connection basis. Useful
+	# for working with REST services. [Bug c11a51c482]
+	if {!$accept_types_seen} {
+	    puts $sock "Accept: $state(accept-types)"
+	}
         if {!$accept_encoding_seen && ![info exists state(-handler)]} {
-	    puts $sock "Accept-Encoding: deflate,gzip,compress"
+	    puts $sock "Accept-Encoding: gzip,deflate,compress"
         }
 	if {$isQueryChannel && $state(querylength) == 0} {
 	    # Try to determine size of data in channel. If we cannot seek, the
@@ -755,35 +807,16 @@ proc http::geturl {url args} {
 	    fileevent $sock readable [list http::Event $sock $token]
 	}
 
-	if {![info exists state(-command)]} {
-	    # geturl does EVERYTHING asynchronously, so if the user calls it
-	    # synchronously, we just do a wait here.
-
-	    wait $token
-	    if {$state(status) eq "error"} {
-		# Something went wrong, so throw the exception, and the
-		# enclosing catch will do cleanup.
-		return -code error [lindex $state(error) 0]
-	    }
-	}
     } err]} {
 	# The socket probably was never connected, or the connection dropped
 	# later.
 
-	# Clean up after events and such, but DON'T call the command callback
-	# (if available) because we're going to throw an exception from here
-	# instead.
-
 	# if state(status) is error, it means someone's already called Finish
 	# to do the above-described clean up.
 	if {$state(status) ne "error"} {
-	    Finish $token $err 1
+	    Finish $token $err
 	}
-	cleanup $token
-	return -code error $err
     }
-
-    return $token
 }
 
 # Data access functions:
@@ -867,7 +900,7 @@ proc http::cleanup {token} {
 #	Sets the status of the connection, which unblocks
 # 	the waiting geturl call
 
-proc http::Connect {token} {
+proc http::Connect {token proto phost srvurl} {
     variable $token
     upvar 0 $token state
     set err "due to unexpected EOF"
@@ -875,10 +908,10 @@ proc http::Connect {token} {
 	[eof $state(sock)] ||
 	[set err [fconfigure $state(sock) -error]] ne ""
     } {
-	Finish $token "connect failed $err" 1
+	Finish $token "connect failed $err"
     } else {
-	set state(status) connect
 	fileevent $state(sock) writable {}
+	::http::Connected $token $proto $phost $srvurl
     }
     return
 }
@@ -983,7 +1016,7 @@ proc http::Event {sock token} {
 	} elseif {$n == 0} {
 	    # We have now read all headers
 	    # We ignore HTTP/1.1 100 Continue returns. RFC2616 sec 8.2.3
-	    if {$state(http) == "" || [lindex $state(http) 1] == 100} {
+	    if {$state(http) == "" || ([regexp {^\S+\s(\d+)} $state(http) {} x] && $x == 100)} {
 		return
 	    }
 
@@ -1287,7 +1320,7 @@ proc http::Eof {token {force 0}} {
 		set state(body) [zlib $coding $state(body)]
 	    }
 	} err]} {
-	    Log "error doing $coding '$state(body)'"
+	    Log "error doing decompression: $err"
 	    return [Finish $token $err]
 	}
 
@@ -1381,7 +1414,7 @@ proc http::mapReply {string} {
     }
     set converted [string map $formMap $string]
     if {[string match "*\[\u0100-\uffff\]*" $converted]} {
-	regexp {[\u0100-\uffff]} $converted badChar
+	regexp "\[\u0100-\uffff\]" $converted badChar
 	# Return this error message for maximum compatability... :^/
 	return -code error \
 	    "can't read \"formMap($badChar)\": no such element in array"
diff --git a/library/http/pkgIndex.tcl b/library/http/pkgIndex.tcl
index d51f8a8..6e0301a 100644
--- a/library/http/pkgIndex.tcl
+++ b/library/http/pkgIndex.tcl
@@ -1,2 +1,2 @@
 if {![package vsatisfies [package provide Tcl] 8.6]} {return}
-package ifneeded http 2.8.4 [list tclPkgSetup $dir http 2.8.4 {{http.tcl source {::http::config ::http::formatQuery ::http::geturl ::http::reset ::http::wait ::http::register ::http::unregister ::http::mapReply}}}]
+package ifneeded http 2.8.9 [list tclPkgSetup $dir http 2.8.9 {{http.tcl source {::http::config ::http::formatQuery ::http::geturl ::http::reset ::http::wait ::http::register ::http::unregister ::http::mapReply}}}]
diff --git a/library/init.tcl b/library/init.tcl
index 3ec78af..05ac4a3 100644
--- a/library/init.tcl
+++ b/library/init.tcl
@@ -12,10 +12,11 @@
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
 
+# This test intentionally written in pre-7.5 Tcl 
 if {[info commands package] == ""} {
     error "version mismatch: library\nscripts expect Tcl version 7.5b1 or later but the loaded version is\nonly [info patchlevel]"
 }
-package require -exact Tcl 8.6b3
+package require -exact Tcl 8.6.4
 
 # Compute the auto path to use in this interpreter.
 # The values on the path come from several locations:
@@ -116,9 +117,10 @@ namespace eval tcl {
 if {(![interp issafe]) && ($tcl_platform(platform) eq "windows")} {
     namespace eval tcl {
 	proc EnvTraceProc {lo n1 n2 op} {
-	    set x $::env($n2)
-	    set ::env($lo) $x
-	    set ::env([string toupper $lo]) $x
+	    global env
+	    set x $env($n2)
+	    set env($lo) $x
+	    set env([string toupper $lo]) $x
 	}
 	proc InitWinEnv {} {
 	    global env tcl_platform
@@ -128,9 +130,9 @@ if {(![interp issafe]) && ($tcl_platform(platform) eq "windows")} {
 		    switch -- $u {
 			COMSPEC -
 			PATH {
-			    if {![info exists env($u)]} {
-				set env($u) $env($p)
-			    }
+			    set temp $env($p)
+			    unset env($p)
+			    set env($u) $temp
 			    trace add variable env($p) write \
 				    [namespace code [list EnvTraceProc $p]]
 			    trace add variable env($u) write \
@@ -140,11 +142,7 @@ if {(![interp issafe]) && ($tcl_platform(platform) eq "windows")} {
 		}
 	    }
 	    if {![info exists env(COMSPEC)]} {
-		if {$tcl_platform(os) eq "Windows NT"} {
-		    set env(COMSPEC) cmd.exe
-		} else {
-		    set env(COMSPEC) command.com
-		}
+		set env(COMSPEC) cmd.exe
 	    }
 	}
 	InitWinEnv
@@ -159,8 +157,8 @@ if {[interp issafe]} {
 } else {
     # Set up search for Tcl Modules (TIP #189).
     # and setup platform specific unknown package handlers
-    if {$::tcl_platform(os) eq "Darwin"
-	    && $::tcl_platform(platform) eq "unix"} {
+    if {$tcl_platform(os) eq "Darwin"
+	    && $tcl_platform(platform) eq "unix"} {
 	package unknown {::tcl::tm::UnknownHandler \
 		{::tcl::MacOSXPkgUnknown ::tclPkgUnknown}}
     } else {
@@ -233,14 +231,13 @@ if {[namespace which -command tclLog] eq ""} {
 
 proc unknown args {
     variable ::tcl::UnknownPending
-    global auto_noexec auto_noload env tcl_interactive
-
+    global auto_noexec auto_noload env tcl_interactive errorInfo errorCode
 
-    if {[info exists ::errorInfo]} {
-	set savedErrorInfo $::errorInfo
+    if {[info exists errorInfo]} {
+	set savedErrorInfo $errorInfo
     }
-    if {[info exists ::errorCode]} {
-	set savedErrorCode $::errorCode
+    if {[info exists errorCode]} {
+	set savedErrorCode $errorCode
     }
 
     set name [lindex $args 0]
@@ -271,9 +268,9 @@ proc unknown args {
 		unset -nocomplain ::errorCode
 	    }
 	    if {[info exists savedErrorInfo]} {
-		set ::errorInfo $savedErrorInfo
+		set errorInfo $savedErrorInfo
 	    } else {
-		unset -nocomplain ::errorInfo
+		unset -nocomplain errorInfo
 	    }
 	    set code [catch {uplevel 1 $args} msg opts]
 	    if {$code ==  1} {
@@ -282,8 +279,8 @@ proc unknown args {
 		# Note the dependence on how Tcl_AddErrorInfo, etc.
 		# construct the stack trace.
 		#
-		set errorInfo [dict get $opts -errorinfo]
-		set errorCode [dict get $opts -errorcode]
+		set errInfo [dict get $opts -errorinfo]
+		set errCode [dict get $opts -errorcode]
 		set cinfo $args
 		if {[string bytelength $cinfo] > 150} {
 		    set cinfo [string range $cinfo 0 150]
@@ -300,7 +297,7 @@ proc unknown args {
 		# and trim the extra contribution from the matching case
 		#
 		set expect "$msg\n    while executing\n\"$cinfo"
-		if {$errorInfo eq $expect} {
+		if {$errInfo eq $expect} {
 		    #
 		    # The stack has only the eval from the expanded command
 		    # Do not generate any stack trace here.
@@ -315,18 +312,18 @@ proc unknown args {
 		#
 		set expect "\n    invoked from within\n\"$cinfo"
 		set exlen [string length $expect]
-		set eilen [string length $errorInfo]
+		set eilen [string length $errInfo]
 		set i [expr {$eilen - $exlen - 1}]
-		set einfo [string range $errorInfo 0 $i]
+		set einfo [string range $errInfo 0 $i]
 		#
-		# For now verify that $errorInfo consists of what we are about
+		# For now verify that $errInfo consists of what we are about
 		# to return plus what we expected to trim off.
 		#
-		if {$errorInfo ne "$einfo$expect"} {
+		if {$errInfo ne "$einfo$expect"} {
 		    error "Tcl bug: unexpected stack trace in \"unknown\"" {} \
-			[list CORE UNKNOWN BADTRACE $einfo $expect $errorInfo]
+			[list CORE UNKNOWN BADTRACE $einfo $expect $errInfo]
 		}
-		return -code error -errorcode $errorCode \
+		return -code error -errorcode $errCode \
 			-errorinfo $einfo $msg
 	    } else {
 		dict incr opts -level
@@ -335,7 +332,7 @@ proc unknown args {
 	}
     }
 
-    if {([info level] == 1) && ([info script] eq "") \
+    if {([info level] == 1) && ([info script] eq "") 
 	    && [info exists tcl_interactive] && $tcl_interactive} {
 	if {![info exists auto_noexec]} {
 	    set new [auto_execok $name]
@@ -401,7 +398,8 @@ proc unknown args {
 	    return -code error "ambiguous command name \"$name\": [lsort $cmds]"
 	}
     }
-    return -code error "invalid command name \"$name\""
+    return -code error -errorcode [list TCL LOOKUP COMMAND $name] \
+	"invalid command name \"$name\""
 }
 
 # auto_load --
@@ -788,7 +786,7 @@ proc tcl::CopyDirectory {action src dest} {
 	    lappend existing {*}[glob -nocomplain -directory $dest \
 		    -type hidden * .*]
 	    foreach s $existing {
-		if {([file tail $s] ne ".") && ([file tail $s] ne "..")} {
+		if {[file tail $s] ni {. ..}} {
 		    return -code error "error $action \"$src\" to\
 		      \"$dest\": file already exists"
 		}
@@ -796,7 +794,7 @@ proc tcl::CopyDirectory {action src dest} {
 	}
     } else {
 	if {[string first $nsrc $ndest] != -1} {
-	    set srclen [expr {[llength [file split $nsrc]] -1}]
+	    set srclen [expr {[llength [file split $nsrc]] - 1}]
 	    set ndest [lindex [file split $ndest] $srclen]
 	    if {$ndest eq [file tail $nsrc]} {
 		return -code error "error $action \"$src\" to\
@@ -816,37 +814,9 @@ proc tcl::CopyDirectory {action src dest} {
       [glob -nocomplain -directory $src -types hidden *]]
 
     foreach s [lsort -unique $filelist] {
-	if {([file tail $s] ne ".") && ([file tail $s] ne "..")} {
-	    file copy -force $s [file join $dest [file tail $s]]
+	if {[file tail $s] ni {. ..}} {
+	    file copy -force -- $s [file join $dest [file tail $s]]
 	}
     }
     return
 }
-
-# TIP 131
-if 0 {
-proc tcl::rmmadwiw {} {
-    set magic {
-        42 83 fe f6 ff f8 f1 e5 c6 f9 eb fd ff fb f1 e5 cc f5 ec f5 e3 fd fe
-        ff f5 fa f3 e1 c7 f9 f2 fd ff f9 fe f9 ed f4 fa f6 e6 f9 f2 e6 fd f9
-        ff f9 f6 e6 fa fd ff fc fb fc f9 f1 ed
-    }
-    foreach mystic [lassign $magic tragic] {
-        set comic [expr (0x$mystic ^ 0x$tragic) - 255 + 0x$tragic]
-        append logic [format %x $comic]
-        set tragic $mystic
-    }
-    binary format H* $logic
-}
-
-proc tcl::mathfunc::rmmadwiw {} {
-    set age [expr {9*6}]
-    set mind ""
-    while {$age} {
-        lappend mind [expr {$age%13}]
-        set age [expr {$age/13}]
-    }
-    set matter [lreverse $mind]
-    return [join $matter ""]
-}
-}
diff --git a/library/msgcat/msgcat.tcl b/library/msgcat/msgcat.tcl
index 92fb7f7..b217634 100644..100755
--- a/library/msgcat/msgcat.tcl
+++ b/library/msgcat/msgcat.tcl
@@ -16,9 +16,8 @@ package require Tcl 8.5
 package provide msgcat 1.6.0
 
 namespace eval msgcat {
-    namespace export mc mcexists mcload mclocale mcmax mcmset\
-	    mcpreferences mcset mcunknown mcflset mcflmset\
-	    mcloadedlocales mcforgetpackage\
+    namespace export mc mcexists mcload mclocale mcmax mcmset mcpreferences mcset\
+            mcunknown mcflset mcflmset mcloadedlocales mcforgetpackage\
 	    mcpackageconfig mcpackagelocale
 
     # Records the list of locales to search
@@ -816,7 +815,7 @@ proc msgcat::Load {ns locales {callbackonly 0}} {
     }
     set x 0
     foreach p $locales {
-	if { $p eq {} } {
+	if {$p eq {}} {
 	    set p ROOT
 	}
 	set langfile [file join $langdir $p.msg]
@@ -944,7 +943,7 @@ proc msgcat::mcflset {src {dest ""}} {
 # Results:
 #	Returns the number of pairs processed
 
-proc msgcat::mcmset {locale pairs } {
+proc msgcat::mcmset {locale pairs} {
     variable Msgs
 
     set length [llength $pairs]
@@ -1125,8 +1124,11 @@ proc msgcat::Init {} {
     # settings, or fall back on locale of "C".
     #
 
-    # First check registry value LocalName present from Windows Vista
-    # which contains the local string as RFC5646, composed of:
+    # On Vista and later:
+    # HCU/Control Panel/Desktop : PreferredUILanguages is for language packs,
+    # HCU/Control Pannel/International : localName is the default locale.
+    #
+    # They contain the local string as RFC5646, composed of:
     # [a-z]{2,3} : language
     # -[a-z]{4}  : script (optional, translated by table Latn->latin)
     # -[a-z]{2}|[0-9]{3} : territory (optional, numerical region codes not used)
@@ -1134,26 +1136,25 @@ proc msgcat::Init {} {
     # Those are translated to local strings.
     # Examples: de-CH -> de_ch, sr-Latn-CS -> sr_cs@latin, es-419 -> es
     #
-    set key {HKEY_CURRENT_USER\Control Panel\International}
-    if {([registry values $key "LocaleName"] ne "")
-	    && [regexp {^([a-z]{2,3})(?:-([a-z]{4}))?(?:-([a-z]{2}))?(?:-.+)?$}\
-	    [string tolower [registry get $key "LocaleName"]] match locale\
-	    script territory]} {
-	if {"" ne $territory} {
-	    append locale _ $territory
-	}
-	set modifierDict [dict create latn latin cyrl cyrillic]
-	if {[dict exists $modifierDict $script]} {
-	    append locale @ [dict get $modifierDict $script]
-	}
-	if {![catch {
-	    mclocale [ConvertLocale $locale]
-	}]} {
-	    return
+    foreach key {{HKEY_CURRENT_USER\Control Panel\Desktop} {HKEY_CURRENT_USER\Control Panel\International}}\
+	    value {PreferredUILanguages localeName} {
+	if {![catch {registry get $key $value} localeName]
+		&& [regexp {^([a-z]{2,3})(?:-([a-z]{4}))?(?:-([a-z]{2}))?(?:-.+)?$}\
+		    [string tolower $localeName] match locale script territory]} {
+	    if {"" ne $territory} {
+		append locale _ $territory
+	    }
+	    set modifierDict [dict create latn latin cyrl cyrillic]
+	    if {[dict exists $modifierDict $script]} {
+		append locale @ [dict get $modifierDict $script]
+	    }
+	    if {![catch {mclocale [ConvertLocale $locale]}]} {
+		return
+	    }
 	}
     }
 
-    # then check key locale which contains a numerical language ID
+    # then check value locale which contains a numerical language ID
     if {[catch {
 	set locale [registry get $key "locale"]
     }]} {
diff --git a/library/msgcat/pkgIndex.tcl b/library/msgcat/pkgIndex.tcl
index 7399c92..7399c92 100644..100755
--- a/library/msgcat/pkgIndex.tcl
+++ b/library/msgcat/pkgIndex.tcl
diff --git a/library/package.tcl b/library/package.tcl
index c30431c..52daa0e 100644
--- a/library/package.tcl
+++ b/library/package.tcl
@@ -395,9 +395,7 @@ proc pkg_mkIndex {args} {
 
     foreach pkg [lsort [array names files]] {
 	set cmd {}
-	foreach {name version} $pkg {
-	    break
-	}
+	lassign $pkg name version
 	lappend cmd ::tcl::Pkg::Create -name $name -version $version
 	foreach spec [lsort -index 0 $files($pkg)] {
 	    foreach {file type procs} $spec {
@@ -544,8 +542,7 @@ proc tclPkgUnknown {name args} {
 	# Don't add directories we've already seen, or ones already on the
 	# $use_path.
 	foreach dir [lrange $auto_path $index end] {
-	    if {![info exists tclSeenPath($dir)]
-		    && ([lsearch -exact $use_path $dir] == -1) } {
+	    if {![info exists tclSeenPath($dir)] && ($dir ni $use_path)} {
 		lappend use_path $dir
 	    }
 	}
@@ -628,8 +625,7 @@ proc tcl::MacOSXPkgUnknown {original name args} {
 	# Don't add directories we've already seen, or ones already on the
 	# $use_path.
 	foreach dir [lrange $auto_path $index end] {
-	    if {![info exists tclSeenPath($dir)]
-		    && ([lsearch -exact $use_path $dir] == -1) } {
+	    if {![info exists tclSeenPath($dir)] && ($dir ni $use_path)} {
 		lappend use_path $dir
 	    }
 	}
@@ -681,10 +677,7 @@ proc ::tcl::Pkg::Create {args} {
     }
 
     # Initialize parameters
-    set opts(-name)		{}
-    set opts(-version)		{}
-    set opts(-source)		{}
-    set opts(-load)		{}
+    array set opts {-name {} -version {} -source {} -load {}}
 
     # process parameters
     for {set i 0} {$i < $len} {incr i} {
@@ -732,14 +725,9 @@ proc ::tcl::Pkg::Create {args} {
     # Handle -load and -source specs
     foreach key {load source} {
 	foreach filespec $opts(-$key) {
-	    foreach {filename proclist} {{} {}} {
-		break
-	    }
-	    foreach {filename proclist} $filespec {
-		break
-	    }
-
-	    if {![llength $proclist]} {
+	    lassign $filespec filename proclist
+	    
+	    if { [llength $proclist] == 0 } {
 		set cmd "\[list $key \[file join \$dir [list $filename]\]\]"
 		lappend cmdList $cmd
 	    } else {
diff --git a/library/parray.tcl b/library/parray.tcl
index 3ce9817..a9c2cb1 100644
--- a/library/parray.tcl
+++ b/library/parray.tcl
@@ -11,7 +11,7 @@
 proc parray {a {pattern *}} {
     upvar 1 $a array
     if {![array exists array]} {
-	error "\"$a\" isn't an array"
+	return -code error "\"$a\" isn't an array"
     }
     set maxl 0
     set names [lsort [array names array $pattern]]
diff --git a/library/platform/pkgIndex.tcl b/library/platform/pkgIndex.tcl
index 220a67b..5250163 100644
--- a/library/platform/pkgIndex.tcl
+++ b/library/platform/pkgIndex.tcl
@@ -1,3 +1,3 @@
-package ifneeded platform        1.0.10 [list source [file join $dir platform.tcl]]
+package ifneeded platform        1.0.13 [list source [file join $dir platform.tcl]]
 package ifneeded platform::shell 1.1.4 [list source [file join $dir shell.tcl]]
 
diff --git a/library/platform/platform.tcl b/library/platform/platform.tcl
index dd2e66b..1bce7b5 100644
--- a/library/platform/platform.tcl
+++ b/library/platform/platform.tcl
@@ -256,7 +256,7 @@ proc ::platform::LibcVersion {base _->_ vv} {
     if {![catch {
 	set vdata [lindex [split [exec $libc] \n] 0]
     }]} {
-	regexp {([0-9]+(\.[0-9]+)*)} $vdata -> v
+	regexp {version ([0-9]+(\.[0-9]+)*)} $vdata -> v
 	foreach {major minor} [split $v .] break
 	set v glibc${major}.${minor}
 	return 1
@@ -313,13 +313,25 @@ proc ::platform::patterns {id} {
 		}
 	    }
 	}
+	macosx-powerpc {
+	    lappend res macosx-universal
+	}
+	macosx-x86_64 {
+	    lappend res macosx-i386-x86_64
+	}
+	macosx-ix86 {
+	    lappend res macosx-universal macosx-i386-x86_64
+	}
 	macosx*-*    {
 	    # 10.5+ 
 	    if {[regexp {macosx([^-]*)-(.*)} $id -> v cpu]} {
 
 		switch -exact -- $cpu {
-		    ix86    -
-		    x86_64  { set alt i386-x86_64 }
+		    ix86    {
+			lappend alt i386-x86_64
+			lappend alt universal
+		    }
+		    x86_64  { lappend alt i386-x86_64 }
 		    default { set alt {} }
 		}
 
@@ -330,35 +342,26 @@ proc ::platform::patterns {id} {
 		    set res {}
 		    for {set j $minor} {$j >= 5} {incr j -1} {
 			lappend res macosx${major}.${j}-${cpu}
-			lappend res macosx${major}.${j}-universal
-			if {$alt ne {}} {
-			    lappend res macosx${major}.${j}-$alt
+			foreach a $alt {
+			    lappend res macosx${major}.${j}-$a
 			}
 		    }
 
 		    # Add unversioned patterns for 10.3/10.4 builds.
 		    lappend res macosx-${cpu}
-		    lappend res macosx-universal
-		    if {$alt ne {}} {
-			lappend res macosx-$alt
+		    foreach a $alt {
+			lappend res macosx-$a
 		    }
 		} else {
-		    lappend res macosx-universal
-		    if {$alt ne {}} {
-			lappend res macosx-$alt
+		    # No version, just do unversioned patterns.
+		    foreach a $alt {
+			lappend res macosx-$a
 		    }
 		}
 	    } else {
-		lappend res macosx-universal
+		# no v, no cpu ... nothing
 	    }
 	}
-	macosx-powerpc {
-	    lappend res macosx-universal
-	}
-	macosx-x86_64 -
-	macosx-ix86 {
-	    lappend res macosx-universal macosx-i386-x86_64
-	}
     }
     lappend res tcl ; # Pure tcl packages are always compatible.
     return $res
@@ -368,7 +371,7 @@ proc ::platform::patterns {id} {
 # ### ### ### ######### ######### #########
 ## Ready
 
-package provide platform 1.0.10
+package provide platform 1.0.13
 
 # ### ### ### ######### ######### #########
 ## Demo application
diff --git a/library/platform/shell.tcl b/library/platform/shell.tcl
index d37cdcd..6eb9691 100644
--- a/library/platform/shell.tcl
+++ b/library/platform/shell.tcl
@@ -187,7 +187,7 @@ proc ::platform::shell::TEMP {} {
  	    }
  	}
     }
-    if {$channel != ""} {
+    if {$channel ne ""} {
  	return -code error "Failed to open a temporary file: $channel"
     } else {
  	return -code error "Failed to find an unused temporary file name"
diff --git a/library/tcltest/pkgIndex.tcl b/library/tcltest/pkgIndex.tcl
index 0e4568d..987725f 100644
--- a/library/tcltest/pkgIndex.tcl
+++ b/library/tcltest/pkgIndex.tcl
@@ -9,4 +9,4 @@
 # full path name of this file's directory.
 
 if {![package vsatisfies [package provide Tcl] 8.5]} {return}
-package ifneeded tcltest 2.3.4 [list source [file join $dir tcltest.tcl]]
+package ifneeded tcltest 2.3.8 [list source [file join $dir tcltest.tcl]]
diff --git a/library/tcltest/tcltest.tcl b/library/tcltest/tcltest.tcl
index 02da62f..8e43859 100644
--- a/library/tcltest/tcltest.tcl
+++ b/library/tcltest/tcltest.tcl
@@ -22,7 +22,7 @@ namespace eval tcltest {
     # When the version number changes, be sure to update the pkgIndex.tcl file,
     # and the install directory in the Makefiles.  When the minor version
     # changes (new feature) be sure to update the man page as well.
-    variable Version 2.3.4
+    variable Version 2.3.8
 
     # Compatibility support for dumb variables defined in tcltest 1
     # Do not use these.  Call [package provide Tcl] and [info patchlevel]
@@ -84,7 +84,7 @@ namespace eval tcltest {
     #     None.
     #
     proc normalizePath {pathVar} {
-	upvar $pathVar path
+	upvar 1 $pathVar path
 	set oldpwd [pwd]
 	catch {cd $path}
 	set path [pwd]
@@ -247,15 +247,15 @@ namespace eval tcltest {
 
     # Kept only for compatibility
     Default constraintsSpecified {} AcceptList
-    trace variable constraintsSpecified r {set ::tcltest::constraintsSpecified \
-		[array names ::tcltest::testConstraints] ;# }
+    trace add variable constraintsSpecified read [namespace code {
+	    set constraintsSpecified [array names testConstraints] ;#}]
 
     # tests that use threads need to know which is the main thread
     Default mainThread 1
     variable mainThread
-    if {[info commands thread::id] != {}} {
+    if {[info commands thread::id] ne {}} {
 	set mainThread [thread::id]
-    } elseif {[info commands testthread] != {}} {
+    } elseif {[info commands testthread] ne {}} {
 	set mainThread [testthread id]
     }
 
@@ -263,7 +263,7 @@ namespace eval tcltest {
     # Tcl tests is the working directory.  Whenever this value changes
     # change to that directory.
     variable workingDirectory
-    trace variable workingDirectory w \
+    trace add variable workingDirectory write \
 	    [namespace code {cd $workingDirectory ;#}]
 
     Default workingDirectory [pwd] AcceptAbsolutePath
@@ -277,7 +277,7 @@ namespace eval tcltest {
 
     # Set the location of the execuatble
     Default tcltest [info nameofexecutable]
-    trace variable tcltest w [namespace code {testConstraint stdio \
+    trace add variable tcltest write [namespace code {testConstraint stdio \
 	    [eval [ConstraintInitializer stdio]] ;#}]
 
     # save the platform information so it can be restored later
@@ -404,11 +404,11 @@ namespace eval tcltest {
 		# already there.
 		set outdir [normalizePath [file dirname \
 			[file join [pwd] $filename]]]
-		if {[string equal $outdir [temporaryDirectory]]} {
+		if {$outdir eq [temporaryDirectory]} {
 		    variable filesExisted
 		    FillFilesExisted
 		    set filename [file tail $filename]
-		    if {[lsearch -exact $filesExisted $filename] == -1} {
+		    if {$filename ni $filesExisted} {
 			lappend filesExisted $filename
 		    }
 		}
@@ -448,11 +448,11 @@ namespace eval tcltest {
 		# already there.
 		set outdir [normalizePath [file dirname \
 			[file join [pwd] $filename]]]
-		if {[string equal $outdir [temporaryDirectory]]} {
+		if {$outdir eq [temporaryDirectory]} {
 		    variable filesExisted
 		    FillFilesExisted
 		    set filename [file tail $filename]
-		    if {[lsearch -exact $filesExisted $filename] == -1} {
+		    if {$filename ni $filesExisted} {
 			lappend filesExisted $filename
 		    }
 		}
@@ -534,7 +534,7 @@ namespace eval tcltest {
 	    }
 	    default {
 		# Exact match trumps ambiguity
-		if {[lsearch -exact $match $option] >= 0} {
+		if {$option in $match} {
 		    return $option
 		}
 		set values [join [lrange $match 0 end-1] ", "]
@@ -549,7 +549,8 @@ namespace eval tcltest {
 	variable OptionControlledVariables
 	foreach varName [concat $OptionControlledVariables Option] {
 	    variable $varName
-	    trace variable $varName r [namespace code {ProcessCmdLineArgs ;#}]
+	    trace add variable $varName read [namespace code {
+		    ProcessCmdLineArgs ;#}]
 	}
     }
 
@@ -557,11 +558,11 @@ namespace eval tcltest {
 	variable OptionControlledVariables
 	foreach varName [concat $OptionControlledVariables Option] {
 	    variable $varName
-	    foreach pair [trace vinfo $varName] {
-		foreach {op cmd} $pair break
-		if {[string equal r $op]
-			&& [string match *ProcessCmdLineArgs* $cmd]} {
-		    trace vdelete $varName $op $cmd
+	    foreach pair [trace info variable $varName] {
+		lassign $pair op cmd
+		if {($op eq "read") &&
+			[string match *ProcessCmdLineArgs* $cmd]} {
+		    trace remove variable $varName $op $cmd
 		}
 	    }
 	}
@@ -601,7 +602,9 @@ namespace eval tcltest {
 	}
     }
     proc configure args {
-	RemoveAutoConfigureTraces
+	if {[llength $args] > 1} {
+	    RemoveAutoConfigureTraces
+	}
 	set code [catch {Configure {*}$args} msg]
 	return -code $code $msg
     }
@@ -696,7 +699,7 @@ namespace eval tcltest {
     Option -constraints {} {
 	Do not skip the listed constraints listed in -constraints.
     } AcceptList
-    trace variable Option(-constraints) w \
+    trace add variable Option(-constraints) write \
 	    [namespace code {SetSelectedConstraints ;#}]
 
     # Don't run only the "-constraint" specified tests by default
@@ -705,7 +708,7 @@ namespace eval tcltest {
 	variable testConstraints
 	if {!$Option(-limitconstraints)} {return}
 	foreach c [array names testConstraints] {
-	    if {[lsearch -exact $Option(-constraints) $c] == -1} {
+	    if {$c ni $Option(-constraints)} {
 		testConstraint $c 0
 	    }
 	}
@@ -713,7 +716,7 @@ namespace eval tcltest {
     Option -limitconstraints 0 {
 	whether to run only tests with the constraints
     } AcceptBoolean limitConstraints 
-    trace variable Option(-limitconstraints) w \
+    trace add variable Option(-limitconstraints) write \
 	    [namespace code {ClearUnselectedConstraints ;#}]
 
     # A test application has to know how to load the tested commands
@@ -734,7 +737,7 @@ namespace eval tcltest {
 	}
 	set directory [AcceptDirectory $directory]
 	if {![file writable $directory]} {
-	    if {[string equal [workingDirectory] $directory]} {
+	    if {[workingDirectory] eq $directory} {
 		# Special exception: accept the default value
 		# even if the directory is not writable
 		return $directory
@@ -748,7 +751,7 @@ namespace eval tcltest {
     Option -tmpdir [workingDirectory] {
 	Save temporary files in the specified directory.
     } AcceptTemporaryDirectory temporaryDirectory
-    trace variable Option(-tmpdir) w \
+    trace add variable Option(-tmpdir) write \
 	    [namespace code {normalizePath Option(-tmpdir) ;#}]
 
     # Tests should not rely on the current working directory.
@@ -757,17 +760,17 @@ namespace eval tcltest {
     Option -testdir [workingDirectory] {
 	Search tests in the specified directory.
     } AcceptDirectory testsDirectory
-    trace variable Option(-testdir) w \
+    trace add variable Option(-testdir) write \
 	    [namespace code {normalizePath Option(-testdir) ;#}]
 
     proc AcceptLoadFile { file } {
-	if {[string equal "" $file]} {return $file}
+	if {$file eq {}} {return $file}
 	set file [file join [temporaryDirectory] $file]
 	return [AcceptReadable $file]
     }
     proc ReadLoadScript {args} {
 	variable Option
-	if {[string equal "" $Option(-loadfile)]} {return}
+	if {$Option(-loadfile) eq {}} {return}
 	set tmp [open $Option(-loadfile) r]
 	loadScript [read $tmp]
 	close $tmp
@@ -775,7 +778,7 @@ namespace eval tcltest {
     Option -loadfile {} {
 	Read the script to load the tested commands from the specified file.
     } AcceptLoadFile loadFile
-    trace variable Option(-loadfile) w [namespace code ReadLoadScript]
+    trace add variable Option(-loadfile) write [namespace code ReadLoadScript]
 
     proc AcceptOutFile { file } {
 	if {[string equal stderr $file]} {return $file}
@@ -787,14 +790,14 @@ namespace eval tcltest {
     Option -outfile stdout {
 	Send output from test runs to the specified file.
     } AcceptOutFile outputFile
-    trace variable Option(-outfile) w \
+    trace add variable Option(-outfile) write \
 	    [namespace code {outputChannel $Option(-outfile) ;#}]
 
     # errors go to stderr by default
     Option -errfile stderr {
 	Send errors from test runs to the specified file.
     } AcceptOutFile errorFile
-    trace variable Option(-errfile) w \
+    trace add variable Option(-errfile) write \
 	    [namespace code {errorChannel $Option(-errfile) ;#}]
 
     proc loadIntoSlaveInterpreter {slave args} {
@@ -875,7 +878,7 @@ proc tcltest::DebugPArray {level arrayvar} {
     variable debug
 
     if {$debug >= $level} {
-	catch {upvar  $arrayvar $arrayvar}
+	catch {upvar 1 $arrayvar $arrayvar}
 	parray $arrayvar
     }
     return
@@ -959,8 +962,7 @@ proc tcltest::testConstraint {constraint {value ""}} {
     if {[catch {expr {$value && $value}} msg]} {
 	return -code error $msg
     }
-    if {[limitConstraints] 
-	    && [lsearch -exact $Option(-constraints) $constraint] == -1} {
+    if {[limitConstraints] && ($constraint ni $Option(-constraints))} {
 	set value 0
     }
     set testConstraints($constraint) $value
@@ -984,11 +986,7 @@ proc tcltest::interpreter { {interp ""} } {
     if {[llength [info level 0]] == 1} {
 	return $tcltest
     }
-    if {[string equal {} $interp]} {
-	set tcltest {}
-    } else {
-	set tcltest $interp
-    }
+    set tcltest $interp
 }
 
 #####################################################################
@@ -1053,7 +1051,7 @@ proc tcltest::PrintError {errorMsg} {
 		[expr {80 - $InitialMsgLen}]]]
 	puts [errorChannel] [string range $errorMsg 0 $beginningIndex]
 
-	while {![string equal end $beginningIndex]} {
+	while {$beginningIndex ne "end"} {
 	    puts -nonewline [errorChannel] \
 		    [string repeat " " $InitialMsgLen]
 	    if {($endingIndex - $beginningIndex)
@@ -1106,7 +1104,7 @@ proc tcltest::PrintError {errorMsg} {
 proc tcltest::SafeFetch {n1 n2 op} {
     variable testConstraints
     DebugPuts 3 "entering SafeFetch $n1 $n2 $op"
-    if {[string equal {} $n2]} {return}
+    if {$n2 eq {}} {return}
     if {![info exists testConstraints($n2)]} {
 	if {[catch {testConstraint $n2 [eval [ConstraintInitializer $n2]]}]} {
 	    testConstraint $n2 0
@@ -1251,9 +1249,8 @@ proc tcltest::DefineConstraintInitializers {} {
     # are running as root on Unix.
 
     ConstraintInitializer root {expr \
-	    {[string equal unix $::tcl_platform(platform)]
-	    && ([string equal root $::tcl_platform(user)]
-		|| [string equal "" $::tcl_platform(user)])}}
+	    {($::tcl_platform(platform) eq "unix") &&
+		    ($::tcl_platform(user) in {root {}})}}
     ConstraintInitializer notRoot {expr {![testConstraint root]}}
 
     # Set nonBlockFiles constraint: 1 means this platform supports
@@ -1261,7 +1258,7 @@ proc tcltest::DefineConstraintInitializers {} {
 
     ConstraintInitializer nonBlockFiles {
 	    set code [expr {[catch {set f [open defs r]}] 
-		    || [catch {fconfigure $f -blocking off}]}]
+		    || [catch {chan configure $f -blocking off}]}]
 	    catch {close $f}
 	    set code
     }
@@ -1287,10 +1284,10 @@ proc tcltest::DefineConstraintInitializers {} {
 
     ConstraintInitializer unixExecs {
 	set code 1
-        if {[string equal macintosh $::tcl_platform(platform)]} {
+        if {$::tcl_platform(platform) eq "macintosh"} {
 	    set code 0
         }
-        if {[string equal windows $::tcl_platform(platform)]} {
+        if {$::tcl_platform(platform) eq "windows"} {
 	    if {[catch {
 	        set file _tcl_test_remove_me.txt
 	        makeFile {hello} $file
@@ -1384,7 +1381,7 @@ proc tcltest::Usage { {option ""} } {
 	set allOpts [concat -help [Configure]]
 	foreach opt $allOpts {
 	    set foo [Usage $opt]
-	    foreach [list x type($opt) usage($opt)] $foo break
+	    lassign $foo x type($opt) usage($opt)
 	    set line($opt) "  $opt $type($opt)  "
 	    set length($opt) [string length $line($opt)]
 	    if {$length($opt) > $max} {set max $length($opt)}
@@ -1408,7 +1405,7 @@ proc tcltest::Usage { {option ""} } {
 	    append msg $u
 	}
 	return $msg\n
-    } elseif {[string equal -help $option]} {
+    } elseif {$option eq "-help"} {
 	return [list -help "" "Display this usage information."]
     } else {
 	set type [lindex [info args $Verify($option)] 0]
@@ -1434,7 +1431,7 @@ proc tcltest::Usage { {option ""} } {
 
 proc tcltest::ProcessFlags {flagArray} {
     # Process -help first
-    if {[lsearch -exact $flagArray {-help}] != -1} {
+    if {"-help" in $flagArray} {
 	PrintUsageInfo
 	exit 1
     }
@@ -1443,14 +1440,14 @@ proc tcltest::ProcessFlags {flagArray} {
 	RemoveAutoConfigureTraces
     } else {
 	set args $flagArray
-	while {[llength $args]>1 && [catch {configure {*}$args} msg]} {
+	while {[llength $args] > 1 && [catch {configure {*}$args} msg]} {
 
 	    # Something went wrong parsing $args for tcltest options
 	    # Check whether the problem is "unknown option"
 	    if {[regexp {^unknown option (\S+):} $msg -> option]} {
 		# Could be this is an option the Hook knows about
 		set moreOptions [processCmdLineArgsAddFlagsHook]
-		if {[lsearch -exact $moreOptions $option] == -1} {
+		if {$option ni $moreOptions} {
 		    # Nope.  Report the error, including additional options,
 		    # but keep going
 		    if {[llength $moreOptions]} {
@@ -1469,7 +1466,7 @@ proc tcltest::ProcessFlags {flagArray} {
 
 	    # To recover, find that unknown option and remove up to it.
 	    # then retry
-	    while {![string equal [lindex $args 0] $option]} {
+	    while {[lindex $args 0] ne $option} {
 		set args [lrange $args 2 end]
 	    }
 	    set args [lrange $args 2 end]
@@ -1575,7 +1572,7 @@ proc tcltest::Replace::puts {args} {
 	}
 	2 {
 	    # Either -nonewline or channelId has been specified
-	    if {[string equal -nonewline [lindex $args 0]]} {
+	    if {[lindex $args 0] eq "-nonewline"} {
 		append outData [lindex $args end]
 		return
 		# return [Puts -nonewline [lindex $args end]]
@@ -1585,7 +1582,7 @@ proc tcltest::Replace::puts {args} {
 	    }
 	}
 	3 {
-	    if {[string equal -nonewline [lindex $args 0]]} {
+	    if {[lindex $args 0] eq "-nonewline"} {
 		# Both -nonewline and channelId are specified, unless
 		# it's an error.  -nonewline is supposed to be argv[0].
 		set channel [lindex $args 1]
@@ -1595,12 +1592,10 @@ proc tcltest::Replace::puts {args} {
     }
 
     if {[info exists channel]} {
-	if {[string equal $channel [[namespace parent]::outputChannel]]
-		|| [string equal $channel stdout]} {
+	if {$channel in [list [[namespace parent]::outputChannel] stdout]} {
 	    append outData [lindex $args end]$newline
 	    return
-	} elseif {[string equal $channel [[namespace parent]::errorChannel]]
-		|| [string equal $channel stderr]} {
+	} elseif {$channel in [list [[namespace parent]::errorChannel] stderr]} {
 	    append errData [lindex $args end]$newline
 	    return
 	}
@@ -1769,7 +1764,7 @@ proc tcltest::SubstArguments {argList} {
             set argList {}
         }
 
-        if {$token != {}} {
+        if {$token ne {}} {
             # If we saw a word with quote before, then there is a
             # multi-word token starting with that word.  In this case,
             # add the text and the current word to this token.
@@ -1876,10 +1871,7 @@ proc tcltest::test {name description args} {
     # Pre-define everything to null except output and errorOutput.  We
     # determine whether or not to trap output based on whether or not
     # these variables (output & errorOutput) are defined.
-    foreach item {constraints setup cleanup body result returnCodes
-	    match} {
-	set $item {}
-    }
+    lassign {} constraints setup cleanup body result returnCodes match
 
     # Set the default match mode
     set match exact
@@ -1891,8 +1883,7 @@ proc tcltest::test {name description args} {
 
     # The old test format can't have a 3rd argument (constraints or
     # script) that starts with '-'.
-    if {[string match -* [lindex $args 0]]
-	    || ([llength $args] <= 1)} {
+    if {[string match -* [lindex $args 0]] || ([llength $args] <= 1)} {
 	if {[llength $args] == 1} {
 	    set list [SubstArguments [lindex $args 0]]
 	    foreach {element value} $list {
@@ -1913,7 +1904,7 @@ proc tcltest::test {name description args} {
 		-match -output -errorOutput -constraints}
 
 	foreach flag [array names testAttributes] {
-	    if {[lsearch -exact $validFlags $flag] == -1} {
+	    if {$flag ni $validFlags} {
 		incr testLevel -1
 		set sorted [lsort $validFlags]
 		set options [join [lrange $sorted 0 end-1] ", "]
@@ -1929,7 +1920,7 @@ proc tcltest::test {name description args} {
 
 	# Check the values supplied for -match
 	variable CustomMatch
-	if {[lsearch [array names CustomMatch] $match] == -1} {
+	if {$match ni [array names CustomMatch]} {
 	    incr testLevel -1
 	    set sorted [lsort [array names CustomMatch]]
 	    set values [join [lrange $sorted 0 end-1] ", "]
@@ -1993,57 +1984,16 @@ proc tcltest::test {name description args} {
 	} else {
 	    set testResult [uplevel 1 [list [namespace origin Eval] $command 1]]
 	}
-	foreach {actualAnswer returnCode} $testResult break
+	lassign $testResult actualAnswer returnCode
 	if {$returnCode == 1} {
 	    set errorInfo(body) $::errorInfo
 	    set errorCode(body) $::errorCode
 	}
     }
 
-    # Always run the cleanup script
-    set code [catch {uplevel 1 $cleanup} cleanupMsg]
-    if {$code == 1} {
-	set errorInfo(cleanup) $::errorInfo
-	set errorCode(cleanup) $::errorCode
-    }
-    set cleanupFailure [expr {$code != 0}]
-
-    set coreFailure 0
-    set coreMsg ""
-    # check for a core file first - if one was created by the test,
-    # then the test failed
-    if {[preserveCore]} {
-	if {[file exists [file join [workingDirectory] core]]} {
-	    # There's only a test failure if there is a core file
-	    # and (1) there previously wasn't one or (2) the new
-	    # one is different from the old one.
-	    if {[info exists coreModTime]} {
-		if {$coreModTime != [file mtime \
-			[file join [workingDirectory] core]]} {
-		    set coreFailure 1
-		}
-	    } else {
-		set coreFailure 1
-	    }
-	
-	    if {([preserveCore] > 1) && ($coreFailure)} {
-		append coreMsg "\nMoving file to:\
-		    [file join [temporaryDirectory] core-$name]"
-		catch {file rename -force \
-		    [file join [workingDirectory] core] \
-		    [file join [temporaryDirectory] core-$name]
-		} msg
-		if {[string length $msg] > 0} {
-		    append coreMsg "\nError:\
-			Problem renaming core file: $msg"
-		}
-	    }
-	}
-    }
-
     # check if the return code matched the expected return code
     set codeFailure 0
-    if {!$setupFailure && [lsearch -exact $returnCodes $returnCode] == -1} {
+    if {!$setupFailure && ($returnCode ni $returnCodes)} {
 	set codeFailure 1
     }
 
@@ -2085,6 +2035,47 @@ proc tcltest::test {name description args} {
 	set scriptFailure 1
     }
 
+    # Always run the cleanup script
+    set code [catch {uplevel 1 $cleanup} cleanupMsg]
+    if {$code == 1} {
+	set errorInfo(cleanup) $::errorInfo
+	set errorCode(cleanup) $::errorCode
+    }
+    set cleanupFailure [expr {$code != 0}]
+
+    set coreFailure 0
+    set coreMsg ""
+    # check for a core file first - if one was created by the test,
+    # then the test failed
+    if {[preserveCore]} {
+	if {[file exists [file join [workingDirectory] core]]} {
+	    # There's only a test failure if there is a core file
+	    # and (1) there previously wasn't one or (2) the new
+	    # one is different from the old one.
+	    if {[info exists coreModTime]} {
+		if {$coreModTime != [file mtime \
+			[file join [workingDirectory] core]]} {
+		    set coreFailure 1
+		}
+	    } else {
+		set coreFailure 1
+	    }
+	
+	    if {([preserveCore] > 1) && ($coreFailure)} {
+		append coreMsg "\nMoving file to:\
+		    [file join [temporaryDirectory] core-$name]"
+		catch {file rename -force -- \
+		    [file join [workingDirectory] core] \
+		    [file join [temporaryDirectory] core-$name]
+		} msg
+		if {$msg ne {}} {
+		    append coreMsg "\nError:\
+			Problem renaming core file: $msg"
+		}
+	    }
+	}
+    }
+
     # if we didn't experience any failures, then we passed
     variable numTests
     if {!($setupFailure || $cleanupFailure || $coreFailure
@@ -2122,7 +2113,7 @@ proc tcltest::test {name description args} {
 		set testFd [open $testFile r]
 		set testLine [expr {[lsearch -regexp \
 			[split [read $testFd] "\n"] \
-			"^\[ \t\]*test [string map {. \\.} $name] "]+1}]
+			"^\[ \t\]*test [string map {. \\.} $name] "] + 1}]
 		close $testFd
 	    }
 	}
@@ -2167,7 +2158,7 @@ proc tcltest::test {name description args} {
 	puts [outputChannel] "---- Return code should have been\
 		one of: $returnCodes"
 	if {[IsVerbose error]} {
-	    if {[info exists errorInfo(body)] && ([lsearch $returnCodes 1]<0)} {
+	    if {[info exists errorInfo(body)] && (1 ni $returnCodes)} {
 		puts [outputChannel] "---- errorInfo: $errorInfo(body)"
 		puts [outputChannel] "---- errorCode: $errorCode(body)"
 	    }
@@ -2248,7 +2239,7 @@ proc tcltest::Skipped {name constraints} {
 	}
 	return 1
     }
-    if {[string equal {} $constraints]} {
+    if {$constraints eq {}} {
 	# If we're limited to the listed constraints and there aren't
 	# any listed, then we shouldn't run the test.
 	if {[limitConstraints]} {
@@ -2399,7 +2390,7 @@ proc tcltest::cleanupTests {{calledFromAllFile 0}} {
 	foreach file $filesMade {
 	    if {[file exists $file]} {
 		DebugDo 1 {Warn "cleanupTests deleting $file..."}
-		catch {file delete -force $file}
+		catch {file delete -force -- $file}
 	    }
 	}
 	set currentFiles {}
@@ -2409,7 +2400,7 @@ proc tcltest::cleanupTests {{calledFromAllFile 0}} {
 	}
 	set newFiles {}
 	foreach file $currentFiles {
-	    if {[lsearch -exact $filesExisted $file] == -1} {
+	    if {$file ni $filesExisted} {
 		lappend newFiles $file
 	    }
 	}
@@ -2492,8 +2483,7 @@ proc tcltest::cleanupTests {{calledFromAllFile 0}} {
 	# then add current file to failFile list if any tests in this
 	# file failed
 
-	if {$currentFailure \
-		&& ([lsearch -exact $failFiles $testFileName] == -1)} {
+	if {$currentFailure && ($testFileName ni $failFiles)} {
 	    lappend failFiles $testFileName
 	}
 	set currentFailure false
@@ -2508,17 +2498,15 @@ proc tcltest::cleanupTests {{calledFromAllFile 0}} {
 	    if {![info exists originalEnv($index)]} {
 		lappend newEnv $index
 		unset ::env($index)
-	    } else {
-		if {$::env($index) != $originalEnv($index)} {
-		    lappend changedEnv $index
-		    set ::env($index) $originalEnv($index)
-		}
 	    }
 	}
 	foreach index [array names originalEnv] {
 	    if {![info exists ::env($index)]} {
 		lappend removedEnv $index
 		set ::env($index) $originalEnv($index)
+	    } elseif {$::env($index) ne $originalEnv($index)} {
+		lappend changedEnv $index
+		set ::env($index) $originalEnv($index)
 	    }
 	}
 	if {[llength $newEnv] > 0} {
@@ -2553,11 +2541,11 @@ proc tcltest::cleanupTests {{calledFromAllFile 0}} {
 		puts [outputChannel] "produced core file! \
 			Moving file to: \
 			[file join [temporaryDirectory] core-$testFileName]"
-		catch {file rename -force \
+		catch {file rename -force -- \
 			[file join [workingDirectory] core] \
 			[file join [temporaryDirectory] core-$testFileName]
 		} msg
-		if {[string length $msg] > 0} {
+		if {$msg ne {}} {
 		    PrintError "Problem renaming file: $msg"
 		}
 	    } else {
@@ -2635,7 +2623,7 @@ proc tcltest::GetMatchingFiles { args } {
 
 	# Add to result list all files in match list and not in skip list
 	foreach file $matchFileList {
-	    if {[lsearch -exact $skipFileList $file] == -1} {
+	    if {$file ni $skipFileList} {
 		lappend matchingFiles $file
 	    }
 	}
@@ -2682,7 +2670,7 @@ proc tcltest::GetMatchingDirectories {rootdir} {
     foreach pattern [matchDirectories] {
 	foreach path [glob -directory $rootdir -types d -nocomplain -- \
 		$pattern] {
-	    if {[lsearch -exact $skipDirs $path] == -1} {
+	    if {$path ni $skipDirs} {
 		set matchDirs [concat $matchDirs [GetMatchingDirectories $path]]
 		if {[file exists [file join $path all.tcl]]} {
 		    lappend matchDirs $path
@@ -2735,7 +2723,7 @@ proc tcltest::runAllTests { {shell ""} } {
 
     # [file system] first available in Tcl 8.4
     if {![catch {file system [testsDirectory]} result]
-	    && ![string equal native [lindex $result 0]]} {
+	    && ([lindex $result 0] ne "native")} {
 	# If we aren't running in the native filesystem, then we must
 	# run the tests in a single process (via 'source'), because
 	# trying to run then via a pipe will fail since the files don't
@@ -2782,10 +2770,10 @@ proc tcltest::runAllTests { {shell ""} } {
 	    # needs to read and process output of children.
 	    set childargv [list]
 	    foreach opt [Configure] {
-		if {[string equal $opt -outfile]} {continue}
+		if {$opt eq "-outfile"} {continue}
 		set value [Configure $opt]
 		# Don't bother passing default configuration options
-		if {[string equal $value $DefaultValue($opt)]} {
+		if {$value eq $DefaultValue($opt)} {
 			continue
 		}
 		lappend childargv $opt $value
@@ -2878,11 +2866,6 @@ proc tcltest::runAllTests { {shell ""} } {
 #     none.
 
 proc tcltest::loadTestedCommands {} {
-    variable l
-    if {[string equal {} [loadScript]]} {
-	return
-    }
-
     return [uplevel 1 [loadScript]]
 }
 
@@ -2925,16 +2908,15 @@ proc tcltest::saveState {} {
 proc tcltest::restoreState {} {
     variable saveState
     foreach p [uplevel 1 {::info procs}] {
-	if {([lsearch [lindex $saveState 0] $p] < 0)
-		&& ![string equal [namespace current]::$p \
-		[uplevel 1 [list ::namespace origin $p]]]} {
+	if {($p ni [lindex $saveState 0]) && ("[namespace current]::$p" ne
+		[uplevel 1 [list ::namespace origin $p]])} {
 
 	    DebugPuts 2 "[lindex [info level 0] 0]: Removing proc $p"
 	    uplevel 1 [list ::catch [list ::rename $p {}]]
 	}
     }
     foreach p [uplevel 1 {::info vars}] {
-	if {[lsearch [lindex $saveState 1] $p] < 0} {
+	if {$p ni [lindex $saveState 1]} {
 	    DebugPuts 2 "[lindex [info level 0] 0]:\
 		    Removing variable $p"
 	    uplevel 1 [list ::catch [list ::unset $p]]
@@ -2995,15 +2977,15 @@ proc tcltest::makeFile {contents name {directory ""}} {
 	     putting ``$contents'' into $fullName"
 
     set fd [open $fullName w]
-    fconfigure $fd -translation lf
-    if {[string equal [string index $contents end] \n]} {
+    chan configure $fd -translation lf
+    if {[string index $contents end] eq "\n"} {
 	puts -nonewline $fd $contents
     } else {
 	puts $fd $contents
     }
     close $fd
 
-    if {[lsearch -exact $filesMade $fullName] == -1} {
+    if {$fullName ni $filesMade} {
 	lappend filesMade $fullName
     }
     return $fullName
@@ -3043,7 +3025,7 @@ proc tcltest::removeFile {name {directory ""}} {
 	    Warn "removeFile removing \"$fullName\":\n  not a file"
 	}
     }
-    return [file delete $fullName]
+    return [file delete -- $fullName]
 }
 
 # tcltest::makeDirectory --
@@ -3073,7 +3055,7 @@ proc tcltest::makeDirectory {name {directory ""}} {
     set fullName [file join $directory $name]
     DebugPuts 3 "[lindex [info level 0] 0]: creating $fullName"
     file mkdir $fullName
-    if {[lsearch -exact $filesMade $fullName] == -1} {
+    if {$fullName ni $filesMade} {
 	lappend filesMade $fullName
     }
     return $fullName
@@ -3114,7 +3096,7 @@ proc tcltest::removeDirectory {name {directory ""}} {
 	    Warn "removeDirectory removing \"$fullName\":\n  not a directory"
 	}
     }
-    return [file delete -force $fullName]
+    return [file delete -force -- $fullName]
 }
 
 # tcltest::viewFile --
@@ -3211,7 +3193,7 @@ proc tcltest::LeakFiles {old} {
     }
     set leak {}
     foreach p $new {
-	if {[lsearch $old $p] < 0} {
+	if {$p ni $old} {
 	    lappend leak $p
 	}
     }
@@ -3282,7 +3264,7 @@ proc tcltest::RestoreLocale {} {
 #
 
 proc tcltest::threadReap {} {
-    if {[info commands testthread] != {}} {
+    if {[info commands testthread] ne {}} {
 
 	# testthread built into tcltest
 
@@ -3302,7 +3284,7 @@ proc tcltest::threadReap {} {
 	}
 	testthread errorproc ThreadError
 	return [llength [testthread names]]
-    } elseif {[info commands thread::id] != {}} {
+    } elseif {[info commands thread::id] ne {}} {
 	
 	# Thread extension
 
@@ -3334,15 +3316,15 @@ namespace eval tcltest {
     # Set up the constraints in the testConstraints array to be lazily
     # initialized by a registered initializer, or by "false" if no
     # initializer is registered.
-    trace variable testConstraints r [namespace code SafeFetch]
+    trace add variable testConstraints read [namespace code SafeFetch]
 
     # Only initialize constraints at package load time if an
     # [initConstraintsHook] has been pre-defined.  This is only
     # for compatibility support.  The modern way to add a custom
     # test constraint is to just call the [testConstraint] command
     # straight away, without all this "hook" nonsense.
-    if {[string equal [namespace current] \
-	    [namespace qualifiers [namespace which initConstraintsHook]]]} {
+    if {[namespace current] eq
+	    [namespace qualifiers [namespace which initConstraintsHook]]} {
 	InitConstraints
     } else {
 	proc initConstraintsHook {} {}
@@ -3379,15 +3361,15 @@ namespace eval tcltest {
 
     proc LoadTimeCmdLineArgParsingRequired {} {
 	set required false
-	if {[info exists ::argv] && [lsearch -exact $::argv -help] != -1} {
+	if {[info exists ::argv] && ("-help" in $::argv)} {
 	    # The command line asks for -help, so give it (and exit)
 	    # right now.  ([configure] does not process -help)
 	    set required true
 	}
 	foreach hook { PrintUsageInfoHook processCmdLineArgsHook
 			processCmdLineArgsAddFlagsHook } {
-	    if {[string equal [namespace current] [namespace qualifiers \
-		    [namespace which $hook]]]} {
+	    if {[namespace current] eq
+		    [namespace qualifiers [namespace which $hook]]} {
 		set required true
 	    } else {
 		proc $hook args {}
diff --git a/library/tm.tcl b/library/tm.tcl
index ce8a013..55efda6 100644
--- a/library/tm.tcl
+++ b/library/tm.tcl
@@ -54,7 +54,7 @@ namespace eval ::tcl::tm {
     # Export the public API
 
     namespace export path
-    namespace ensemble create -command path -subcommand {add remove list}
+    namespace ensemble create -command path -subcommands {add remove list}
 }
 
 # ::tcl::tm::path implementations --
@@ -238,6 +238,15 @@ proc ::tcl::tm::UnknownHandler {original name args} {
 			continue
 		    }
 
+		    if {[package ifneeded $pkgname $pkgversion] ne {}} {
+			# There's already a provide script registered for
+			# this version of this package.  Since all units of
+			# code claiming to be the same version of the same
+			# package ought to be identical, just stick with
+			# the one we already have.
+			continue
+		    }
+
 		    # We have found a candidate, generate a "provide script"
 		    # for it, and remember it.  Note that we are using ::list
 		    # to do this; locally [list] means something else without
@@ -260,10 +269,8 @@ proc ::tcl::tm::UnknownHandler {original name args} {
 		    # Otherwise we still have to fallback to the regular
 		    # package search to complete the processing.
 
-		    if {
-			($pkgname eq $name) &&
-			[package vsatisfies $pkgversion {*}$args]
-		    } then {
+		    if {($pkgname eq $name)
+			    && [package vsatisfies $pkgversion {*}$args]} {
 			set satisfied 1
 
 			# We do not abort the loop, and keep adding provide
@@ -347,7 +354,7 @@ proc ::tcl::tm::Defaults {} {
 #	Calls 'path add' to paths to the list of module search paths.
 
 proc ::tcl::tm::roots {paths} {
-    foreach {major minor} [split [info tclversion] .] break
+    lassign [split [package present Tcl] .] major minor
     foreach pa $paths {
 	set p [file join $pa tcl$major]
 	for {set n $minor} {$n >= 0} {incr n -1} {
diff --git a/library/tzdata/Africa/Accra b/library/tzdata/Africa/Accra
index faf58fb..39db976 100644
--- a/library/tzdata/Africa/Accra
+++ b/library/tzdata/Africa/Accra
@@ -3,6 +3,38 @@
 set TZData(:Africa/Accra) {
     {-9223372036854775808 -52 0 LMT}
     {-1640995148 0 0 GMT}
+    {-1556841600 1200 1 GHST}
+    {-1546388400 0 0 GMT}
+    {-1525305600 1200 1 GHST}
+    {-1514852400 0 0 GMT}
+    {-1493769600 1200 1 GHST}
+    {-1483316400 0 0 GMT}
+    {-1462233600 1200 1 GHST}
+    {-1451780400 0 0 GMT}
+    {-1430611200 1200 1 GHST}
+    {-1420158000 0 0 GMT}
+    {-1399075200 1200 1 GHST}
+    {-1388622000 0 0 GMT}
+    {-1367539200 1200 1 GHST}
+    {-1357086000 0 0 GMT}
+    {-1336003200 1200 1 GHST}
+    {-1325550000 0 0 GMT}
+    {-1304380800 1200 1 GHST}
+    {-1293927600 0 0 GMT}
+    {-1272844800 1200 1 GHST}
+    {-1262391600 0 0 GMT}
+    {-1241308800 1200 1 GHST}
+    {-1230855600 0 0 GMT}
+    {-1209772800 1200 1 GHST}
+    {-1199319600 0 0 GMT}
+    {-1178150400 1200 1 GHST}
+    {-1167697200 0 0 GMT}
+    {-1146614400 1200 1 GHST}
+    {-1136161200 0 0 GMT}
+    {-1115078400 1200 1 GHST}
+    {-1104625200 0 0 GMT}
+    {-1083542400 1200 1 GHST}
+    {-1073089200 0 0 GMT}
     {-1051920000 1200 1 GHST}
     {-1041466800 0 0 GMT}
     {-1020384000 1200 1 GHST}
diff --git a/library/tzdata/Africa/Addis_Ababa b/library/tzdata/Africa/Addis_Ababa
index 4b92483..7aa5653 100644
--- a/library/tzdata/Africa/Addis_Ababa
+++ b/library/tzdata/Africa/Addis_Ababa
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Addis_Ababa) {
-    {-9223372036854775808 9288 0 LMT}
-    {-3155682888 9320 0 ADMT}
-    {-1062210920 10800 0 EAT}
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
+set TZData(:Africa/Addis_Ababa) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Africa/Asmara b/library/tzdata/Africa/Asmara
index 1f0f13e..3d33c94 100755
--- a/library/tzdata/Africa/Asmara
+++ b/library/tzdata/Africa/Asmara
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Asmara) {
-    {-9223372036854775808 9332 0 LMT}
-    {-3155682932 9332 0 AMT}
-    {-2524530932 9320 0 ADMT}
-    {-1062210920 10800 0 EAT}
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
+set TZData(:Africa/Asmara) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Africa/Asmera b/library/tzdata/Africa/Asmera
index 931c36d..ca8d123 100644
--- a/library/tzdata/Africa/Asmera
+++ b/library/tzdata/Africa/Asmera
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(Africa/Asmara)]} {
-    LoadTimeZoneFile Africa/Asmara
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
-set TZData(:Africa/Asmera) $TZData(:Africa/Asmara)
+set TZData(:Africa/Asmera) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Africa/Bamako b/library/tzdata/Africa/Bamako
index 7ed62e0..0818378 100644
--- a/library/tzdata/Africa/Bamako
+++ b/library/tzdata/Africa/Bamako
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Bamako) {
-    {-9223372036854775808 -1920 0 LMT}
-    {-1830382080 0 0 GMT}
-    {-1131235200 -3600 0 WAT}
-    {-300841200 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Africa/Bamako) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Bangui b/library/tzdata/Africa/Bangui
index 94f5058..0326a6c 100644
--- a/library/tzdata/Africa/Bangui
+++ b/library/tzdata/Africa/Bangui
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Bangui) {
-    {-9223372036854775808 4460 0 LMT}
-    {-1830388460 3600 0 WAT}
+if {![info exists TZData(Africa/Lagos)]} {
+    LoadTimeZoneFile Africa/Lagos
 }
+set TZData(:Africa/Bangui) $TZData(:Africa/Lagos)
diff --git a/library/tzdata/Africa/Banjul b/library/tzdata/Africa/Banjul
index a7f0168..ded0e57 100644
--- a/library/tzdata/Africa/Banjul
+++ b/library/tzdata/Africa/Banjul
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Banjul) {
-    {-9223372036854775808 -3996 0 LMT}
-    {-1830380004 -3996 0 BMT}
-    {-1104533604 -3600 0 WAT}
-    {-189385200 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Africa/Banjul) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Bissau b/library/tzdata/Africa/Bissau
index d51cb9f..5693228 100644
--- a/library/tzdata/Africa/Bissau
+++ b/library/tzdata/Africa/Bissau
@@ -2,6 +2,6 @@
 
 set TZData(:Africa/Bissau) {
     {-9223372036854775808 -3740 0 LMT}
-    {-1849388260 -3600 0 WAT}
+    {-1830380260 -3600 0 WAT}
     {157770000 0 0 GMT}
 }
diff --git a/library/tzdata/Africa/Blantyre b/library/tzdata/Africa/Blantyre
index 17b58f4..9a404c5 100644
--- a/library/tzdata/Africa/Blantyre
+++ b/library/tzdata/Africa/Blantyre
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Blantyre) {
-    {-9223372036854775808 8400 0 LMT}
-    {-2109291600 7200 0 CAT}
+if {![info exists TZData(Africa/Maputo)]} {
+    LoadTimeZoneFile Africa/Maputo
 }
+set TZData(:Africa/Blantyre) $TZData(:Africa/Maputo)
diff --git a/library/tzdata/Africa/Brazzaville b/library/tzdata/Africa/Brazzaville
index b4e0923..111eff4 100644
--- a/library/tzdata/Africa/Brazzaville
+++ b/library/tzdata/Africa/Brazzaville
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Brazzaville) {
-    {-9223372036854775808 3668 0 LMT}
-    {-1830387668 3600 0 WAT}
+if {![info exists TZData(Africa/Lagos)]} {
+    LoadTimeZoneFile Africa/Lagos
 }
+set TZData(:Africa/Brazzaville) $TZData(:Africa/Lagos)
diff --git a/library/tzdata/Africa/Bujumbura b/library/tzdata/Africa/Bujumbura
index c26d053..1e463d8 100644
--- a/library/tzdata/Africa/Bujumbura
+++ b/library/tzdata/Africa/Bujumbura
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Bujumbura) {
-    {-9223372036854775808 7048 0 LMT}
-    {-2524528648 7200 0 CAT}
+if {![info exists TZData(Africa/Maputo)]} {
+    LoadTimeZoneFile Africa/Maputo
 }
+set TZData(:Africa/Bujumbura) $TZData(:Africa/Maputo)
diff --git a/library/tzdata/Africa/Cairo b/library/tzdata/Africa/Cairo
index 165d8c4..aaeec54 100644
--- a/library/tzdata/Africa/Cairo
+++ b/library/tzdata/Africa/Cairo
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Africa/Cairo) {
-    {-9223372036854775808 7500 0 LMT}
-    {-2185409100 7200 0 EET}
+    {-9223372036854775808 7509 0 LMT}
+    {-2185409109 7200 0 EET}
     {-929844000 10800 1 EEST}
     {-923108400 7200 0 EET}
     {-906170400 10800 1 EEST}
@@ -125,4 +125,8 @@ set TZData(:Africa/Cairo) {
     {1281474000 7200 0 EET}
     {1284069600 10800 1 EEST}
     {1285880400 7200 0 EET}
+    {1400191200 10800 1 EEST}
+    {1403816400 7200 0 EET}
+    {1406844000 10800 1 EEST}
+    {1411678800 7200 0 EET}
 }
diff --git a/library/tzdata/Africa/Casablanca b/library/tzdata/Africa/Casablanca
index 3817077..224e5c2 100644
--- a/library/tzdata/Africa/Casablanca
+++ b/library/tzdata/Africa/Casablanca
@@ -30,179 +30,204 @@ set TZData(:Africa/Casablanca) {
     {1301788800 3600 1 WEST}
     {1312066800 0 0 WET}
     {1335664800 3600 1 WEST}
+    {1342749600 0 0 WET}
+    {1345428000 3600 1 WEST}
     {1348970400 0 0 WET}
     {1367114400 3600 1 WEST}
-    {1380420000 0 0 WET}
-    {1398564000 3600 1 WEST}
-    {1411869600 0 0 WET}
-    {1430013600 3600 1 WEST}
-    {1443319200 0 0 WET}
-    {1461463200 3600 1 WEST}
-    {1474768800 0 0 WET}
-    {1493517600 3600 1 WEST}
-    {1506218400 0 0 WET}
-    {1524967200 3600 1 WEST}
-    {1538272800 0 0 WET}
-    {1556416800 3600 1 WEST}
-    {1569722400 0 0 WET}
-    {1587866400 3600 1 WEST}
-    {1601172000 0 0 WET}
-    {1619316000 3600 1 WEST}
-    {1632621600 0 0 WET}
-    {1650765600 3600 1 WEST}
-    {1664071200 0 0 WET}
-    {1682820000 3600 1 WEST}
-    {1695520800 0 0 WET}
-    {1714269600 3600 1 WEST}
-    {1727575200 0 0 WET}
-    {1745719200 3600 1 WEST}
-    {1759024800 0 0 WET}
-    {1777168800 3600 1 WEST}
-    {1790474400 0 0 WET}
-    {1808618400 3600 1 WEST}
-    {1821924000 0 0 WET}
-    {1840672800 3600 1 WEST}
-    {1853373600 0 0 WET}
-    {1872122400 3600 1 WEST}
-    {1885428000 0 0 WET}
-    {1903572000 3600 1 WEST}
-    {1916877600 0 0 WET}
-    {1935021600 3600 1 WEST}
-    {1948327200 0 0 WET}
-    {1966471200 3600 1 WEST}
-    {1979776800 0 0 WET}
-    {1997920800 3600 1 WEST}
-    {2011226400 0 0 WET}
-    {2029975200 3600 1 WEST}
-    {2042676000 0 0 WET}
-    {2061424800 3600 1 WEST}
-    {2074730400 0 0 WET}
-    {2092874400 3600 1 WEST}
-    {2106180000 0 0 WET}
-    {2124324000 3600 1 WEST}
-    {2137629600 0 0 WET}
-    {2155773600 3600 1 WEST}
-    {2169079200 0 0 WET}
-    {2187223200 3600 1 WEST}
-    {2200528800 0 0 WET}
-    {2219277600 3600 1 WEST}
-    {2232583200 0 0 WET}
-    {2250727200 3600 1 WEST}
-    {2264032800 0 0 WET}
-    {2282176800 3600 1 WEST}
-    {2295482400 0 0 WET}
-    {2313626400 3600 1 WEST}
-    {2326932000 0 0 WET}
-    {2345076000 3600 1 WEST}
-    {2358381600 0 0 WET}
-    {2377130400 3600 1 WEST}
-    {2389831200 0 0 WET}
-    {2408580000 3600 1 WEST}
-    {2421885600 0 0 WET}
-    {2440029600 3600 1 WEST}
-    {2453335200 0 0 WET}
-    {2471479200 3600 1 WEST}
-    {2484784800 0 0 WET}
-    {2502928800 3600 1 WEST}
-    {2516234400 0 0 WET}
-    {2534378400 3600 1 WEST}
-    {2547684000 0 0 WET}
-    {2566432800 3600 1 WEST}
-    {2579133600 0 0 WET}
-    {2597882400 3600 1 WEST}
-    {2611188000 0 0 WET}
-    {2629332000 3600 1 WEST}
-    {2642637600 0 0 WET}
-    {2660781600 3600 1 WEST}
-    {2674087200 0 0 WET}
-    {2692231200 3600 1 WEST}
-    {2705536800 0 0 WET}
-    {2724285600 3600 1 WEST}
-    {2736986400 0 0 WET}
-    {2755735200 3600 1 WEST}
-    {2769040800 0 0 WET}
-    {2787184800 3600 1 WEST}
-    {2800490400 0 0 WET}
-    {2818634400 3600 1 WEST}
-    {2831940000 0 0 WET}
-    {2850084000 3600 1 WEST}
-    {2863389600 0 0 WET}
-    {2881533600 3600 1 WEST}
-    {2894839200 0 0 WET}
-    {2913588000 3600 1 WEST}
-    {2926288800 0 0 WET}
-    {2945037600 3600 1 WEST}
-    {2958343200 0 0 WET}
-    {2976487200 3600 1 WEST}
-    {2989792800 0 0 WET}
-    {3007936800 3600 1 WEST}
-    {3021242400 0 0 WET}
-    {3039386400 3600 1 WEST}
-    {3052692000 0 0 WET}
-    {3070836000 3600 1 WEST}
-    {3084141600 0 0 WET}
-    {3102890400 3600 1 WEST}
-    {3116196000 0 0 WET}
-    {3134340000 3600 1 WEST}
-    {3147645600 0 0 WET}
-    {3165789600 3600 1 WEST}
-    {3179095200 0 0 WET}
-    {3197239200 3600 1 WEST}
-    {3210544800 0 0 WET}
-    {3228688800 3600 1 WEST}
-    {3241994400 0 0 WET}
-    {3260743200 3600 1 WEST}
-    {3273444000 0 0 WET}
-    {3292192800 3600 1 WEST}
-    {3305498400 0 0 WET}
-    {3323642400 3600 1 WEST}
-    {3336948000 0 0 WET}
-    {3355092000 3600 1 WEST}
-    {3368397600 0 0 WET}
-    {3386541600 3600 1 WEST}
-    {3399847200 0 0 WET}
-    {3417991200 3600 1 WEST}
-    {3431296800 0 0 WET}
-    {3450045600 3600 1 WEST}
-    {3462746400 0 0 WET}
-    {3481495200 3600 1 WEST}
-    {3494800800 0 0 WET}
-    {3512944800 3600 1 WEST}
-    {3526250400 0 0 WET}
-    {3544394400 3600 1 WEST}
-    {3557700000 0 0 WET}
-    {3575844000 3600 1 WEST}
-    {3589149600 0 0 WET}
-    {3607898400 3600 1 WEST}
-    {3620599200 0 0 WET}
-    {3639348000 3600 1 WEST}
-    {3652653600 0 0 WET}
-    {3670797600 3600 1 WEST}
-    {3684103200 0 0 WET}
-    {3702247200 3600 1 WEST}
-    {3715552800 0 0 WET}
-    {3733696800 3600 1 WEST}
-    {3747002400 0 0 WET}
-    {3765146400 3600 1 WEST}
-    {3778452000 0 0 WET}
-    {3797200800 3600 1 WEST}
-    {3809901600 0 0 WET}
-    {3828650400 3600 1 WEST}
-    {3841956000 0 0 WET}
-    {3860100000 3600 1 WEST}
-    {3873405600 0 0 WET}
-    {3891549600 3600 1 WEST}
-    {3904855200 0 0 WET}
-    {3922999200 3600 1 WEST}
-    {3936304800 0 0 WET}
-    {3954448800 3600 1 WEST}
-    {3967754400 0 0 WET}
-    {3986503200 3600 1 WEST}
-    {3999808800 0 0 WET}
-    {4017952800 3600 1 WEST}
-    {4031258400 0 0 WET}
-    {4049402400 3600 1 WEST}
-    {4062708000 0 0 WET}
-    {4080852000 3600 1 WEST}
-    {4094157600 0 0 WET}
+    {1373162400 0 0 WET}
+    {1376100000 3600 1 WEST}
+    {1382839200 0 0 WET}
+    {1396144800 3600 1 WEST}
+    {1403920800 0 0 WET}
+    {1406944800 3600 1 WEST}
+    {1414288800 0 0 WET}
+    {1427594400 3600 1 WEST}
+    {1434160800 0 0 WET}
+    {1437184800 3600 1 WEST}
+    {1445738400 0 0 WET}
+    {1459044000 3600 1 WEST}
+    {1465005600 0 0 WET}
+    {1468029600 3600 1 WEST}
+    {1477792800 0 0 WET}
+    {1490493600 3600 1 WEST}
+    {1495245600 0 0 WET}
+    {1498874400 3600 1 WEST}
+    {1509242400 0 0 WET}
+    {1521943200 3600 1 WEST}
+    {1526090400 0 0 WET}
+    {1529114400 3600 1 WEST}
+    {1540692000 0 0 WET}
+    {1553997600 3600 1 WEST}
+    {1556935200 0 0 WET}
+    {1559959200 3600 1 WEST}
+    {1572141600 0 0 WET}
+    {1585447200 3600 1 WEST}
+    {1587175200 0 0 WET}
+    {1590804000 3600 1 WEST}
+    {1603591200 0 0 WET}
+    {1616896800 3600 1 WEST}
+    {1618020000 0 0 WET}
+    {1621044000 3600 1 WEST}
+    {1635645600 0 0 WET}
+    {1648346400 3600 1 WEST}
+    {1648864800 0 0 WET}
+    {1651888800 3600 1 WEST}
+    {1667095200 0 0 WET}
+    {1682128800 3600 1 WEST}
+    {1698544800 0 0 WET}
+    {1712973600 3600 1 WEST}
+    {1729994400 0 0 WET}
+    {1743818400 3600 1 WEST}
+    {1761444000 0 0 WET}
+    {1774749600 3600 1 WEST}
+    {1792893600 0 0 WET}
+    {1806199200 3600 1 WEST}
+    {1824948000 0 0 WET}
+    {1837648800 3600 1 WEST}
+    {1856397600 0 0 WET}
+    {1869098400 3600 1 WEST}
+    {1887847200 0 0 WET}
+    {1901152800 3600 1 WEST}
+    {1919296800 0 0 WET}
+    {1932602400 3600 1 WEST}
+    {1950746400 0 0 WET}
+    {1964052000 3600 1 WEST}
+    {1982800800 0 0 WET}
+    {1995501600 3600 1 WEST}
+    {2014250400 0 0 WET}
+    {2026951200 3600 1 WEST}
+    {2045700000 0 0 WET}
+    {2058400800 3600 1 WEST}
+    {2077063200 0 0 WET}
+    {2077153200 0 0 WET}
+    {2090455200 3600 1 WEST}
+    {2107908000 0 0 WET}
+    {2108602800 0 0 WET}
+    {2121904800 3600 1 WEST}
+    {2138752800 0 0 WET}
+    {2140052400 0 0 WET}
+    {2153354400 3600 1 WEST}
+    {2172103200 0 0 WET}
+    {2184804000 3600 1 WEST}
+    {2203552800 0 0 WET}
+    {2216253600 3600 1 WEST}
+    {2235002400 0 0 WET}
+    {2248308000 3600 1 WEST}
+    {2266452000 0 0 WET}
+    {2279757600 3600 1 WEST}
+    {2297901600 0 0 WET}
+    {2311207200 3600 1 WEST}
+    {2329351200 0 0 WET}
+    {2342656800 3600 1 WEST}
+    {2361405600 0 0 WET}
+    {2374106400 3600 1 WEST}
+    {2392855200 0 0 WET}
+    {2405556000 3600 1 WEST}
+    {2424304800 0 0 WET}
+    {2437610400 3600 1 WEST}
+    {2455754400 0 0 WET}
+    {2469060000 3600 1 WEST}
+    {2487204000 0 0 WET}
+    {2500509600 3600 1 WEST}
+    {2519258400 0 0 WET}
+    {2531959200 3600 1 WEST}
+    {2550708000 0 0 WET}
+    {2563408800 3600 1 WEST}
+    {2582157600 0 0 WET}
+    {2595463200 3600 1 WEST}
+    {2613607200 0 0 WET}
+    {2626912800 3600 1 WEST}
+    {2645056800 0 0 WET}
+    {2658362400 3600 1 WEST}
+    {2676506400 0 0 WET}
+    {2689812000 3600 1 WEST}
+    {2708560800 0 0 WET}
+    {2721261600 3600 1 WEST}
+    {2740010400 0 0 WET}
+    {2752711200 3600 1 WEST}
+    {2771460000 0 0 WET}
+    {2784765600 3600 1 WEST}
+    {2802909600 0 0 WET}
+    {2816215200 3600 1 WEST}
+    {2834359200 0 0 WET}
+    {2847664800 3600 1 WEST}
+    {2866413600 0 0 WET}
+    {2879114400 3600 1 WEST}
+    {2897863200 0 0 WET}
+    {2910564000 3600 1 WEST}
+    {2929312800 0 0 WET}
+    {2942013600 3600 1 WEST}
+    {2960762400 0 0 WET}
+    {2974068000 3600 1 WEST}
+    {2992212000 0 0 WET}
+    {3005517600 3600 1 WEST}
+    {3023661600 0 0 WET}
+    {3036967200 3600 1 WEST}
+    {3055716000 0 0 WET}
+    {3068416800 3600 1 WEST}
+    {3087165600 0 0 WET}
+    {3099866400 3600 1 WEST}
+    {3118615200 0 0 WET}
+    {3131920800 3600 1 WEST}
+    {3150064800 0 0 WET}
+    {3163370400 3600 1 WEST}
+    {3181514400 0 0 WET}
+    {3194820000 3600 1 WEST}
+    {3212964000 0 0 WET}
+    {3226269600 3600 1 WEST}
+    {3245018400 0 0 WET}
+    {3257719200 3600 1 WEST}
+    {3276468000 0 0 WET}
+    {3289168800 3600 1 WEST}
+    {3307917600 0 0 WET}
+    {3321223200 3600 1 WEST}
+    {3339367200 0 0 WET}
+    {3352672800 3600 1 WEST}
+    {3370816800 0 0 WET}
+    {3384122400 3600 1 WEST}
+    {3402871200 0 0 WET}
+    {3415572000 3600 1 WEST}
+    {3434320800 0 0 WET}
+    {3447021600 3600 1 WEST}
+    {3465770400 0 0 WET}
+    {3479076000 3600 1 WEST}
+    {3497220000 0 0 WET}
+    {3510525600 3600 1 WEST}
+    {3528669600 0 0 WET}
+    {3541975200 3600 1 WEST}
+    {3560119200 0 0 WET}
+    {3573424800 3600 1 WEST}
+    {3592173600 0 0 WET}
+    {3604874400 3600 1 WEST}
+    {3623623200 0 0 WET}
+    {3636324000 3600 1 WEST}
+    {3655072800 0 0 WET}
+    {3668378400 3600 1 WEST}
+    {3686522400 0 0 WET}
+    {3699828000 3600 1 WEST}
+    {3717972000 0 0 WET}
+    {3731277600 3600 1 WEST}
+    {3750026400 0 0 WET}
+    {3762727200 3600 1 WEST}
+    {3781476000 0 0 WET}
+    {3794176800 3600 1 WEST}
+    {3812925600 0 0 WET}
+    {3825626400 3600 1 WEST}
+    {3844375200 0 0 WET}
+    {3857680800 3600 1 WEST}
+    {3875824800 0 0 WET}
+    {3889130400 3600 1 WEST}
+    {3907274400 0 0 WET}
+    {3920580000 3600 1 WEST}
+    {3939328800 0 0 WET}
+    {3952029600 3600 1 WEST}
+    {3970778400 0 0 WET}
+    {3983479200 3600 1 WEST}
+    {4002228000 0 0 WET}
+    {4015533600 3600 1 WEST}
+    {4033677600 0 0 WET}
+    {4046983200 3600 1 WEST}
+    {4065127200 0 0 WET}
+    {4078432800 3600 1 WEST}
+    {4096576800 0 0 WET}
 }
diff --git a/library/tzdata/Africa/Conakry b/library/tzdata/Africa/Conakry
index d17ce4b..4373720 100644
--- a/library/tzdata/Africa/Conakry
+++ b/library/tzdata/Africa/Conakry
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Conakry) {
-    {-9223372036854775808 -3292 0 LMT}
-    {-1830380708 0 0 GMT}
-    {-1131235200 -3600 0 WAT}
-    {-315615600 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Africa/Conakry) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Dakar b/library/tzdata/Africa/Dakar
index 487dc62..78e800c 100644
--- a/library/tzdata/Africa/Dakar
+++ b/library/tzdata/Africa/Dakar
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Dakar) {
-    {-9223372036854775808 -4184 0 LMT}
-    {-1830379816 -3600 0 WAT}
-    {-902098800 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Africa/Dakar) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Dar_es_Salaam b/library/tzdata/Africa/Dar_es_Salaam
index 98151ec..00e8d4e 100644
--- a/library/tzdata/Africa/Dar_es_Salaam
+++ b/library/tzdata/Africa/Dar_es_Salaam
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Dar_es_Salaam) {
-    {-9223372036854775808 9428 0 LMT}
-    {-1230777428 10800 0 EAT}
-    {-694321200 9900 0 BEAUT}
-    {-284006700 10800 0 EAT}
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
+set TZData(:Africa/Dar_es_Salaam) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Africa/Djibouti b/library/tzdata/Africa/Djibouti
index 0ec510c..859ea32 100644
--- a/library/tzdata/Africa/Djibouti
+++ b/library/tzdata/Africa/Djibouti
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Djibouti) {
-    {-9223372036854775808 10356 0 LMT}
-    {-1846291956 10800 0 EAT}
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
+set TZData(:Africa/Djibouti) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Africa/Douala b/library/tzdata/Africa/Douala
index 301a530..892b16a 100644
--- a/library/tzdata/Africa/Douala
+++ b/library/tzdata/Africa/Douala
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Douala) {
-    {-9223372036854775808 2328 0 LMT}
-    {-1830386328 3600 0 WAT}
+if {![info exists TZData(Africa/Lagos)]} {
+    LoadTimeZoneFile Africa/Lagos
 }
+set TZData(:Africa/Douala) $TZData(:Africa/Lagos)
diff --git a/library/tzdata/Africa/El_Aaiun b/library/tzdata/Africa/El_Aaiun
index a8b9d34..3a5c934 100644
--- a/library/tzdata/Africa/El_Aaiun
+++ b/library/tzdata/Africa/El_Aaiun
@@ -4,4 +4,219 @@ set TZData(:Africa/El_Aaiun) {
     {-9223372036854775808 -3168 0 LMT}
     {-1136070432 -3600 0 WAT}
     {198291600 0 0 WET}
+    {199756800 3600 1 WEST}
+    {207702000 0 0 WET}
+    {231292800 3600 1 WEST}
+    {244249200 0 0 WET}
+    {265507200 3600 1 WEST}
+    {271033200 0 0 WET}
+    {1212278400 3600 1 WEST}
+    {1220223600 0 0 WET}
+    {1243814400 3600 1 WEST}
+    {1250809200 0 0 WET}
+    {1272758400 3600 1 WEST}
+    {1281222000 0 0 WET}
+    {1301788800 3600 1 WEST}
+    {1312066800 0 0 WET}
+    {1335664800 3600 1 WEST}
+    {1342749600 0 0 WET}
+    {1345428000 3600 1 WEST}
+    {1348970400 0 0 WET}
+    {1367114400 3600 1 WEST}
+    {1373162400 0 0 WET}
+    {1376100000 3600 1 WEST}
+    {1382839200 0 0 WET}
+    {1396144800 3600 1 WEST}
+    {1403920800 0 0 WET}
+    {1406944800 3600 1 WEST}
+    {1414288800 0 0 WET}
+    {1427594400 3600 1 WEST}
+    {1434160800 0 0 WET}
+    {1437184800 3600 1 WEST}
+    {1445738400 0 0 WET}
+    {1459044000 3600 1 WEST}
+    {1465005600 0 0 WET}
+    {1468029600 3600 1 WEST}
+    {1477792800 0 0 WET}
+    {1490493600 3600 1 WEST}
+    {1495245600 0 0 WET}
+    {1498874400 3600 1 WEST}
+    {1509242400 0 0 WET}
+    {1521943200 3600 1 WEST}
+    {1526090400 0 0 WET}
+    {1529114400 3600 1 WEST}
+    {1540692000 0 0 WET}
+    {1553997600 3600 1 WEST}
+    {1556935200 0 0 WET}
+    {1559959200 3600 1 WEST}
+    {1572141600 0 0 WET}
+    {1585447200 3600 1 WEST}
+    {1587175200 0 0 WET}
+    {1590804000 3600 1 WEST}
+    {1603591200 0 0 WET}
+    {1616896800 3600 1 WEST}
+    {1618020000 0 0 WET}
+    {1621044000 3600 1 WEST}
+    {1635645600 0 0 WET}
+    {1648346400 3600 1 WEST}
+    {1648864800 0 0 WET}
+    {1651888800 3600 1 WEST}
+    {1667095200 0 0 WET}
+    {1682128800 3600 1 WEST}
+    {1698544800 0 0 WET}
+    {1712973600 3600 1 WEST}
+    {1729994400 0 0 WET}
+    {1743818400 3600 1 WEST}
+    {1761444000 0 0 WET}
+    {1774749600 3600 1 WEST}
+    {1792893600 0 0 WET}
+    {1806199200 3600 1 WEST}
+    {1824948000 0 0 WET}
+    {1837648800 3600 1 WEST}
+    {1856397600 0 0 WET}
+    {1869098400 3600 1 WEST}
+    {1887847200 0 0 WET}
+    {1901152800 3600 1 WEST}
+    {1919296800 0 0 WET}
+    {1932602400 3600 1 WEST}
+    {1950746400 0 0 WET}
+    {1964052000 3600 1 WEST}
+    {1982800800 0 0 WET}
+    {1995501600 3600 1 WEST}
+    {2014250400 0 0 WET}
+    {2026951200 3600 1 WEST}
+    {2045700000 0 0 WET}
+    {2058400800 3600 1 WEST}
+    {2077063200 0 0 WET}
+    {2077153200 0 0 WET}
+    {2090455200 3600 1 WEST}
+    {2107908000 0 0 WET}
+    {2108602800 0 0 WET}
+    {2121904800 3600 1 WEST}
+    {2138752800 0 0 WET}
+    {2140052400 0 0 WET}
+    {2153354400 3600 1 WEST}
+    {2172103200 0 0 WET}
+    {2184804000 3600 1 WEST}
+    {2203552800 0 0 WET}
+    {2216253600 3600 1 WEST}
+    {2235002400 0 0 WET}
+    {2248308000 3600 1 WEST}
+    {2266452000 0 0 WET}
+    {2279757600 3600 1 WEST}
+    {2297901600 0 0 WET}
+    {2311207200 3600 1 WEST}
+    {2329351200 0 0 WET}
+    {2342656800 3600 1 WEST}
+    {2361405600 0 0 WET}
+    {2374106400 3600 1 WEST}
+    {2392855200 0 0 WET}
+    {2405556000 3600 1 WEST}
+    {2424304800 0 0 WET}
+    {2437610400 3600 1 WEST}
+    {2455754400 0 0 WET}
+    {2469060000 3600 1 WEST}
+    {2487204000 0 0 WET}
+    {2500509600 3600 1 WEST}
+    {2519258400 0 0 WET}
+    {2531959200 3600 1 WEST}
+    {2550708000 0 0 WET}
+    {2563408800 3600 1 WEST}
+    {2582157600 0 0 WET}
+    {2595463200 3600 1 WEST}
+    {2613607200 0 0 WET}
+    {2626912800 3600 1 WEST}
+    {2645056800 0 0 WET}
+    {2658362400 3600 1 WEST}
+    {2676506400 0 0 WET}
+    {2689812000 3600 1 WEST}
+    {2708560800 0 0 WET}
+    {2721261600 3600 1 WEST}
+    {2740010400 0 0 WET}
+    {2752711200 3600 1 WEST}
+    {2771460000 0 0 WET}
+    {2784765600 3600 1 WEST}
+    {2802909600 0 0 WET}
+    {2816215200 3600 1 WEST}
+    {2834359200 0 0 WET}
+    {2847664800 3600 1 WEST}
+    {2866413600 0 0 WET}
+    {2879114400 3600 1 WEST}
+    {2897863200 0 0 WET}
+    {2910564000 3600 1 WEST}
+    {2929312800 0 0 WET}
+    {2942013600 3600 1 WEST}
+    {2960762400 0 0 WET}
+    {2974068000 3600 1 WEST}
+    {2992212000 0 0 WET}
+    {3005517600 3600 1 WEST}
+    {3023661600 0 0 WET}
+    {3036967200 3600 1 WEST}
+    {3055716000 0 0 WET}
+    {3068416800 3600 1 WEST}
+    {3087165600 0 0 WET}
+    {3099866400 3600 1 WEST}
+    {3118615200 0 0 WET}
+    {3131920800 3600 1 WEST}
+    {3150064800 0 0 WET}
+    {3163370400 3600 1 WEST}
+    {3181514400 0 0 WET}
+    {3194820000 3600 1 WEST}
+    {3212964000 0 0 WET}
+    {3226269600 3600 1 WEST}
+    {3245018400 0 0 WET}
+    {3257719200 3600 1 WEST}
+    {3276468000 0 0 WET}
+    {3289168800 3600 1 WEST}
+    {3307917600 0 0 WET}
+    {3321223200 3600 1 WEST}
+    {3339367200 0 0 WET}
+    {3352672800 3600 1 WEST}
+    {3370816800 0 0 WET}
+    {3384122400 3600 1 WEST}
+    {3402871200 0 0 WET}
+    {3415572000 3600 1 WEST}
+    {3434320800 0 0 WET}
+    {3447021600 3600 1 WEST}
+    {3465770400 0 0 WET}
+    {3479076000 3600 1 WEST}
+    {3497220000 0 0 WET}
+    {3510525600 3600 1 WEST}
+    {3528669600 0 0 WET}
+    {3541975200 3600 1 WEST}
+    {3560119200 0 0 WET}
+    {3573424800 3600 1 WEST}
+    {3592173600 0 0 WET}
+    {3604874400 3600 1 WEST}
+    {3623623200 0 0 WET}
+    {3636324000 3600 1 WEST}
+    {3655072800 0 0 WET}
+    {3668378400 3600 1 WEST}
+    {3686522400 0 0 WET}
+    {3699828000 3600 1 WEST}
+    {3717972000 0 0 WET}
+    {3731277600 3600 1 WEST}
+    {3750026400 0 0 WET}
+    {3762727200 3600 1 WEST}
+    {3781476000 0 0 WET}
+    {3794176800 3600 1 WEST}
+    {3812925600 0 0 WET}
+    {3825626400 3600 1 WEST}
+    {3844375200 0 0 WET}
+    {3857680800 3600 1 WEST}
+    {3875824800 0 0 WET}
+    {3889130400 3600 1 WEST}
+    {3907274400 0 0 WET}
+    {3920580000 3600 1 WEST}
+    {3939328800 0 0 WET}
+    {3952029600 3600 1 WEST}
+    {3970778400 0 0 WET}
+    {3983479200 3600 1 WEST}
+    {4002228000 0 0 WET}
+    {4015533600 3600 1 WEST}
+    {4033677600 0 0 WET}
+    {4046983200 3600 1 WEST}
+    {4065127200 0 0 WET}
+    {4078432800 3600 1 WEST}
+    {4096576800 0 0 WET}
 }
diff --git a/library/tzdata/Africa/Freetown b/library/tzdata/Africa/Freetown
index c3f2d2e..4a8e2e1 100644
--- a/library/tzdata/Africa/Freetown
+++ b/library/tzdata/Africa/Freetown
@@ -1,36 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Freetown) {
-    {-9223372036854775808 -3180 0 LMT}
-    {-2776979220 -3180 0 FMT}
-    {-1785712020 -3600 0 WAT}
-    {-1091487600 -1200 1 SLST}
-    {-1080949200 -3600 0 WAT}
-    {-1059865200 -1200 1 SLST}
-    {-1049326800 -3600 0 WAT}
-    {-1028329200 -1200 1 SLST}
-    {-1017790800 -3600 0 WAT}
-    {-996793200 -1200 1 SLST}
-    {-986254800 -3600 0 WAT}
-    {-965257200 -1200 1 SLST}
-    {-954718800 -3600 0 WAT}
-    {-933634800 -1200 1 SLST}
-    {-923096400 -3600 0 WAT}
-    {-902098800 -1200 1 SLST}
-    {-891560400 -3600 0 WAT}
-    {-870562800 -1200 1 SLST}
-    {-860024400 -3600 0 WAT}
-    {-410223600 0 0 WAT}
-    {-397180800 3600 1 SLST}
-    {-389235600 0 0 GMT}
-    {-365644800 3600 1 SLST}
-    {-357699600 0 0 GMT}
-    {-334108800 3600 1 SLST}
-    {-326163600 0 0 GMT}
-    {-302486400 3600 1 SLST}
-    {-294541200 0 0 GMT}
-    {-270950400 3600 1 SLST}
-    {-263005200 0 0 GMT}
-    {-239414400 3600 1 SLST}
-    {-231469200 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Africa/Freetown) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Gaborone b/library/tzdata/Africa/Gaborone
index 7753ba0..56c0772 100644
--- a/library/tzdata/Africa/Gaborone
+++ b/library/tzdata/Africa/Gaborone
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Gaborone) {
-    {-9223372036854775808 6220 0 LMT}
-    {-2682294220 7200 0 CAT}
-    {-829526400 10800 1 CAST}
-    {-813805200 7200 0 CAT}
+if {![info exists TZData(Africa/Maputo)]} {
+    LoadTimeZoneFile Africa/Maputo
 }
+set TZData(:Africa/Gaborone) $TZData(:Africa/Maputo)
diff --git a/library/tzdata/Africa/Harare b/library/tzdata/Africa/Harare
index 7482b15..644be26 100644
--- a/library/tzdata/Africa/Harare
+++ b/library/tzdata/Africa/Harare
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Harare) {
-    {-9223372036854775808 7452 0 LMT}
-    {-2109290652 7200 0 CAT}
+if {![info exists TZData(Africa/Maputo)]} {
+    LoadTimeZoneFile Africa/Maputo
 }
+set TZData(:Africa/Harare) $TZData(:Africa/Maputo)
diff --git a/library/tzdata/Africa/Juba b/library/tzdata/Africa/Juba
index 7495981..40551f2 100644
--- a/library/tzdata/Africa/Juba
+++ b/library/tzdata/Africa/Juba
@@ -1,39 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Juba) {
-    {-9223372036854775808 7584 0 LMT}
-    {-1230775584 7200 0 CAT}
-    {10360800 10800 1 CAST}
-    {24786000 7200 0 CAT}
-    {41810400 10800 1 CAST}
-    {56322000 7200 0 CAT}
-    {73432800 10800 1 CAST}
-    {87944400 7200 0 CAT}
-    {104882400 10800 1 CAST}
-    {119480400 7200 0 CAT}
-    {136332000 10800 1 CAST}
-    {151016400 7200 0 CAT}
-    {167781600 10800 1 CAST}
-    {182552400 7200 0 CAT}
-    {199231200 10800 1 CAST}
-    {214174800 7200 0 CAT}
-    {230680800 10800 1 CAST}
-    {245710800 7200 0 CAT}
-    {262735200 10800 1 CAST}
-    {277246800 7200 0 CAT}
-    {294184800 10800 1 CAST}
-    {308782800 7200 0 CAT}
-    {325634400 10800 1 CAST}
-    {340405200 7200 0 CAT}
-    {357084000 10800 1 CAST}
-    {371941200 7200 0 CAT}
-    {388533600 10800 1 CAST}
-    {403477200 7200 0 CAT}
-    {419983200 10800 1 CAST}
-    {435013200 7200 0 CAT}
-    {452037600 10800 1 CAST}
-    {466635600 7200 0 CAT}
-    {483487200 10800 1 CAST}
-    {498171600 7200 0 CAT}
-    {947930400 10800 0 EAT}
+if {![info exists TZData(Africa/Khartoum)]} {
+    LoadTimeZoneFile Africa/Khartoum
 }
+set TZData(:Africa/Juba) $TZData(:Africa/Khartoum)
diff --git a/library/tzdata/Africa/Kampala b/library/tzdata/Africa/Kampala
index 4cc9be1..1fbaffc 100644
--- a/library/tzdata/Africa/Kampala
+++ b/library/tzdata/Africa/Kampala
@@ -1,9 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Kampala) {
-    {-9223372036854775808 7780 0 LMT}
-    {-1309745380 10800 0 EAT}
-    {-1262314800 9000 0 BEAT}
-    {-694319400 9900 0 BEAUT}
-    {-410237100 10800 0 EAT}
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
+set TZData(:Africa/Kampala) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Africa/Kigali b/library/tzdata/Africa/Kigali
index f723bcd..192e0e8 100644
--- a/library/tzdata/Africa/Kigali
+++ b/library/tzdata/Africa/Kigali
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Kigali) {
-    {-9223372036854775808 7216 0 LMT}
-    {-1091498416 7200 0 CAT}
+if {![info exists TZData(Africa/Maputo)]} {
+    LoadTimeZoneFile Africa/Maputo
 }
+set TZData(:Africa/Kigali) $TZData(:Africa/Maputo)
diff --git a/library/tzdata/Africa/Kinshasa b/library/tzdata/Africa/Kinshasa
index 050c1fa..04dc62e 100644
--- a/library/tzdata/Africa/Kinshasa
+++ b/library/tzdata/Africa/Kinshasa
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Kinshasa) {
-    {-9223372036854775808 3672 0 LMT}
-    {-2276643672 3600 0 WAT}
+if {![info exists TZData(Africa/Lagos)]} {
+    LoadTimeZoneFile Africa/Lagos
 }
+set TZData(:Africa/Kinshasa) $TZData(:Africa/Lagos)
diff --git a/library/tzdata/Africa/Libreville b/library/tzdata/Africa/Libreville
index 8427551..ba1f686 100644
--- a/library/tzdata/Africa/Libreville
+++ b/library/tzdata/Africa/Libreville
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Libreville) {
-    {-9223372036854775808 2268 0 LMT}
-    {-1830386268 3600 0 WAT}
+if {![info exists TZData(Africa/Lagos)]} {
+    LoadTimeZoneFile Africa/Lagos
 }
+set TZData(:Africa/Libreville) $TZData(:Africa/Lagos)
diff --git a/library/tzdata/Africa/Lome b/library/tzdata/Africa/Lome
index 606625c..9adecc7 100644
--- a/library/tzdata/Africa/Lome
+++ b/library/tzdata/Africa/Lome
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Lome) {
-    {-9223372036854775808 292 0 LMT}
-    {-2429827492 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Africa/Lome) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Luanda b/library/tzdata/Africa/Luanda
index cd1b29e..8dcd107 100644
--- a/library/tzdata/Africa/Luanda
+++ b/library/tzdata/Africa/Luanda
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Luanda) {
-    {-9223372036854775808 3176 0 LMT}
-    {-2461452776 3124 0 AOT}
-    {-1849395124 3600 0 WAT}
+if {![info exists TZData(Africa/Lagos)]} {
+    LoadTimeZoneFile Africa/Lagos
 }
+set TZData(:Africa/Luanda) $TZData(:Africa/Lagos)
diff --git a/library/tzdata/Africa/Lubumbashi b/library/tzdata/Africa/Lubumbashi
index bd67221..7da101a 100644
--- a/library/tzdata/Africa/Lubumbashi
+++ b/library/tzdata/Africa/Lubumbashi
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Lubumbashi) {
-    {-9223372036854775808 6592 0 LMT}
-    {-2276646592 7200 0 CAT}
+if {![info exists TZData(Africa/Maputo)]} {
+    LoadTimeZoneFile Africa/Maputo
 }
+set TZData(:Africa/Lubumbashi) $TZData(:Africa/Maputo)
diff --git a/library/tzdata/Africa/Lusaka b/library/tzdata/Africa/Lusaka
index ed9c30d..bcf519d 100644
--- a/library/tzdata/Africa/Lusaka
+++ b/library/tzdata/Africa/Lusaka
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Lusaka) {
-    {-9223372036854775808 6788 0 LMT}
-    {-2109289988 7200 0 CAT}
+if {![info exists TZData(Africa/Maputo)]} {
+    LoadTimeZoneFile Africa/Maputo
 }
+set TZData(:Africa/Lusaka) $TZData(:Africa/Maputo)
diff --git a/library/tzdata/Africa/Malabo b/library/tzdata/Africa/Malabo
index bec0524..7dcee39 100644
--- a/library/tzdata/Africa/Malabo
+++ b/library/tzdata/Africa/Malabo
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Malabo) {
-    {-9223372036854775808 2108 0 LMT}
-    {-1830386108 0 0 GMT}
-    {-190857600 3600 0 WAT}
+if {![info exists TZData(Africa/Lagos)]} {
+    LoadTimeZoneFile Africa/Lagos
 }
+set TZData(:Africa/Malabo) $TZData(:Africa/Lagos)
diff --git a/library/tzdata/Africa/Maseru b/library/tzdata/Africa/Maseru
index 21ca968..665f15d 100644
--- a/library/tzdata/Africa/Maseru
+++ b/library/tzdata/Africa/Maseru
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Maseru) {
-    {-9223372036854775808 6600 0 LMT}
-    {-2109289800 7200 0 SAST}
-    {-829526400 10800 1 SAST}
-    {-813805200 7200 0 SAST}
+if {![info exists TZData(Africa/Johannesburg)]} {
+    LoadTimeZoneFile Africa/Johannesburg
 }
+set TZData(:Africa/Maseru) $TZData(:Africa/Johannesburg)
diff --git a/library/tzdata/Africa/Mbabane b/library/tzdata/Africa/Mbabane
index 4d174d5..0edb590 100644
--- a/library/tzdata/Africa/Mbabane
+++ b/library/tzdata/Africa/Mbabane
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Mbabane) {
-    {-9223372036854775808 7464 0 LMT}
-    {-2109290664 7200 0 SAST}
+if {![info exists TZData(Africa/Johannesburg)]} {
+    LoadTimeZoneFile Africa/Johannesburg
 }
+set TZData(:Africa/Mbabane) $TZData(:Africa/Johannesburg)
diff --git a/library/tzdata/Africa/Mogadishu b/library/tzdata/Africa/Mogadishu
index 570d3ea..4220655 100644
--- a/library/tzdata/Africa/Mogadishu
+++ b/library/tzdata/Africa/Mogadishu
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Mogadishu) {
-    {-9223372036854775808 10888 0 LMT}
-    {-2403572488 10800 0 EAT}
-    {-1230778800 9000 0 BEAT}
-    {-410236200 10800 0 EAT}
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
+set TZData(:Africa/Mogadishu) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Africa/Niamey b/library/tzdata/Africa/Niamey
index 40ded06b..278571d 100644
--- a/library/tzdata/Africa/Niamey
+++ b/library/tzdata/Africa/Niamey
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Niamey) {
-    {-9223372036854775808 508 0 LMT}
-    {-1830384508 -3600 0 WAT}
-    {-1131231600 0 0 GMT}
-    {-315619200 3600 0 WAT}
+if {![info exists TZData(Africa/Lagos)]} {
+    LoadTimeZoneFile Africa/Lagos
 }
+set TZData(:Africa/Niamey) $TZData(:Africa/Lagos)
diff --git a/library/tzdata/Africa/Nouakchott b/library/tzdata/Africa/Nouakchott
index f7369d0..d33b6bc 100644
--- a/library/tzdata/Africa/Nouakchott
+++ b/library/tzdata/Africa/Nouakchott
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Nouakchott) {
-    {-9223372036854775808 -3828 0 LMT}
-    {-1830380172 0 0 GMT}
-    {-1131235200 -3600 0 WAT}
-    {-286930800 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Africa/Nouakchott) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Ouagadougou b/library/tzdata/Africa/Ouagadougou
index 88a7145..8178c82 100644
--- a/library/tzdata/Africa/Ouagadougou
+++ b/library/tzdata/Africa/Ouagadougou
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Ouagadougou) {
-    {-9223372036854775808 -364 0 LMT}
-    {-1830383636 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Africa/Ouagadougou) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Porto-Novo b/library/tzdata/Africa/Porto-Novo
index b89cf1b..3fa2b51 100644
--- a/library/tzdata/Africa/Porto-Novo
+++ b/library/tzdata/Africa/Porto-Novo
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Porto-Novo) {
-    {-9223372036854775808 628 0 LMT}
-    {-1830384628 0 0 GMT}
-    {-1131235200 3600 0 WAT}
+if {![info exists TZData(Africa/Lagos)]} {
+    LoadTimeZoneFile Africa/Lagos
 }
+set TZData(:Africa/Porto-Novo) $TZData(:Africa/Lagos)
diff --git a/library/tzdata/Africa/Sao_Tome b/library/tzdata/Africa/Sao_Tome
index ab1590d..078591d 100644
--- a/library/tzdata/Africa/Sao_Tome
+++ b/library/tzdata/Africa/Sao_Tome
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Sao_Tome) {
-    {-9223372036854775808 1616 0 LMT}
-    {-2713912016 -2192 0 LMT}
-    {-1830381808 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Africa/Sao_Tome) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Timbuktu b/library/tzdata/Africa/Timbuktu
index 8057eed..9852d7a 100644
--- a/library/tzdata/Africa/Timbuktu
+++ b/library/tzdata/Africa/Timbuktu
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(Africa/Bamako)]} {
-    LoadTimeZoneFile Africa/Bamako
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
-set TZData(:Africa/Timbuktu) $TZData(:Africa/Bamako)
+set TZData(:Africa/Timbuktu) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Africa/Tripoli b/library/tzdata/Africa/Tripoli
index e993249..0e72df4 100644
--- a/library/tzdata/Africa/Tripoli
+++ b/library/tzdata/Africa/Tripoli
@@ -27,5 +27,8 @@ set TZData(:Africa/Tripoli) {
     {641775600 7200 0 EET}
     {844034400 3600 0 CET}
     {860108400 7200 1 CEST}
-    {875916000 7200 0 EET}
+    {875919600 7200 0 EET}
+    {1352505600 3600 0 CET}
+    {1364515200 7200 1 CEST}
+    {1382662800 7200 0 EET}
 }
diff --git a/library/tzdata/America/Adak b/library/tzdata/America/Adak
index f3c5e5c..bd5d5ab 100644
--- a/library/tzdata/America/Adak
+++ b/library/tzdata/America/Adak
@@ -40,237 +40,237 @@ set TZData(:America/Adak) {
     {388587600 -36000 1 BDT}
     {404913600 -39600 0 BST}
     {420037200 -36000 1 BDT}
-    {439034400 -36000 0 HAST}
-    {452088000 -32400 1 HADT}
-    {467809200 -36000 0 HAST}
-    {483537600 -32400 1 HADT}
-    {499258800 -36000 0 HAST}
-    {514987200 -32400 1 HADT}
-    {530708400 -36000 0 HAST}
-    {544622400 -32400 1 HADT}
-    {562158000 -36000 0 HAST}
-    {576072000 -32400 1 HADT}
-    {594212400 -36000 0 HAST}
-    {607521600 -32400 1 HADT}
-    {625662000 -36000 0 HAST}
-    {638971200 -32400 1 HADT}
-    {657111600 -36000 0 HAST}
-    {671025600 -32400 1 HADT}
-    {688561200 -36000 0 HAST}
-    {702475200 -32400 1 HADT}
-    {720010800 -36000 0 HAST}
-    {733924800 -32400 1 HADT}
-    {752065200 -36000 0 HAST}
-    {765374400 -32400 1 HADT}
-    {783514800 -36000 0 HAST}
-    {796824000 -32400 1 HADT}
-    {814964400 -36000 0 HAST}
-    {828878400 -32400 1 HADT}
-    {846414000 -36000 0 HAST}
-    {860328000 -32400 1 HADT}
-    {877863600 -36000 0 HAST}
-    {891777600 -32400 1 HADT}
-    {909313200 -36000 0 HAST}
-    {923227200 -32400 1 HADT}
-    {941367600 -36000 0 HAST}
-    {954676800 -32400 1 HADT}
-    {972817200 -36000 0 HAST}
-    {986126400 -32400 1 HADT}
-    {1004266800 -36000 0 HAST}
-    {1018180800 -32400 1 HADT}
-    {1035716400 -36000 0 HAST}
-    {1049630400 -32400 1 HADT}
-    {1067166000 -36000 0 HAST}
-    {1081080000 -32400 1 HADT}
-    {1099220400 -36000 0 HAST}
-    {1112529600 -32400 1 HADT}
-    {1130670000 -36000 0 HAST}
-    {1143979200 -32400 1 HADT}
-    {1162119600 -36000 0 HAST}
-    {1173614400 -32400 1 HADT}
-    {1194174000 -36000 0 HAST}
-    {1205064000 -32400 1 HADT}
-    {1225623600 -36000 0 HAST}
-    {1236513600 -32400 1 HADT}
-    {1257073200 -36000 0 HAST}
-    {1268568000 -32400 1 HADT}
-    {1289127600 -36000 0 HAST}
-    {1300017600 -32400 1 HADT}
-    {1320577200 -36000 0 HAST}
-    {1331467200 -32400 1 HADT}
-    {1352026800 -36000 0 HAST}
-    {1362916800 -32400 1 HADT}
-    {1383476400 -36000 0 HAST}
-    {1394366400 -32400 1 HADT}
-    {1414926000 -36000 0 HAST}
-    {1425816000 -32400 1 HADT}
-    {1446375600 -36000 0 HAST}
-    {1457870400 -32400 1 HADT}
-    {1478430000 -36000 0 HAST}
-    {1489320000 -32400 1 HADT}
-    {1509879600 -36000 0 HAST}
-    {1520769600 -32400 1 HADT}
-    {1541329200 -36000 0 HAST}
-    {1552219200 -32400 1 HADT}
-    {1572778800 -36000 0 HAST}
-    {1583668800 -32400 1 HADT}
-    {1604228400 -36000 0 HAST}
-    {1615723200 -32400 1 HADT}
-    {1636282800 -36000 0 HAST}
-    {1647172800 -32400 1 HADT}
-    {1667732400 -36000 0 HAST}
-    {1678622400 -32400 1 HADT}
-    {1699182000 -36000 0 HAST}
-    {1710072000 -32400 1 HADT}
-    {1730631600 -36000 0 HAST}
-    {1741521600 -32400 1 HADT}
-    {1762081200 -36000 0 HAST}
-    {1772971200 -32400 1 HADT}
-    {1793530800 -36000 0 HAST}
-    {1805025600 -32400 1 HADT}
-    {1825585200 -36000 0 HAST}
-    {1836475200 -32400 1 HADT}
-    {1857034800 -36000 0 HAST}
-    {1867924800 -32400 1 HADT}
-    {1888484400 -36000 0 HAST}
-    {1899374400 -32400 1 HADT}
-    {1919934000 -36000 0 HAST}
-    {1930824000 -32400 1 HADT}
-    {1951383600 -36000 0 HAST}
-    {1962878400 -32400 1 HADT}
-    {1983438000 -36000 0 HAST}
-    {1994328000 -32400 1 HADT}
-    {2014887600 -36000 0 HAST}
-    {2025777600 -32400 1 HADT}
-    {2046337200 -36000 0 HAST}
-    {2057227200 -32400 1 HADT}
-    {2077786800 -36000 0 HAST}
-    {2088676800 -32400 1 HADT}
-    {2109236400 -36000 0 HAST}
-    {2120126400 -32400 1 HADT}
-    {2140686000 -36000 0 HAST}
-    {2152180800 -32400 1 HADT}
-    {2172740400 -36000 0 HAST}
-    {2183630400 -32400 1 HADT}
-    {2204190000 -36000 0 HAST}
-    {2215080000 -32400 1 HADT}
-    {2235639600 -36000 0 HAST}
-    {2246529600 -32400 1 HADT}
-    {2267089200 -36000 0 HAST}
-    {2277979200 -32400 1 HADT}
-    {2298538800 -36000 0 HAST}
-    {2309428800 -32400 1 HADT}
-    {2329988400 -36000 0 HAST}
-    {2341483200 -32400 1 HADT}
-    {2362042800 -36000 0 HAST}
-    {2372932800 -32400 1 HADT}
-    {2393492400 -36000 0 HAST}
-    {2404382400 -32400 1 HADT}
-    {2424942000 -36000 0 HAST}
-    {2435832000 -32400 1 HADT}
-    {2456391600 -36000 0 HAST}
-    {2467281600 -32400 1 HADT}
-    {2487841200 -36000 0 HAST}
-    {2499336000 -32400 1 HADT}
-    {2519895600 -36000 0 HAST}
-    {2530785600 -32400 1 HADT}
-    {2551345200 -36000 0 HAST}
-    {2562235200 -32400 1 HADT}
-    {2582794800 -36000 0 HAST}
-    {2593684800 -32400 1 HADT}
-    {2614244400 -36000 0 HAST}
-    {2625134400 -32400 1 HADT}
-    {2645694000 -36000 0 HAST}
-    {2656584000 -32400 1 HADT}
-    {2677143600 -36000 0 HAST}
-    {2688638400 -32400 1 HADT}
-    {2709198000 -36000 0 HAST}
-    {2720088000 -32400 1 HADT}
-    {2740647600 -36000 0 HAST}
-    {2751537600 -32400 1 HADT}
-    {2772097200 -36000 0 HAST}
-    {2782987200 -32400 1 HADT}
-    {2803546800 -36000 0 HAST}
-    {2814436800 -32400 1 HADT}
-    {2834996400 -36000 0 HAST}
-    {2846491200 -32400 1 HADT}
-    {2867050800 -36000 0 HAST}
-    {2877940800 -32400 1 HADT}
-    {2898500400 -36000 0 HAST}
-    {2909390400 -32400 1 HADT}
-    {2929950000 -36000 0 HAST}
-    {2940840000 -32400 1 HADT}
-    {2961399600 -36000 0 HAST}
-    {2972289600 -32400 1 HADT}
-    {2992849200 -36000 0 HAST}
-    {3003739200 -32400 1 HADT}
-    {3024298800 -36000 0 HAST}
-    {3035793600 -32400 1 HADT}
-    {3056353200 -36000 0 HAST}
-    {3067243200 -32400 1 HADT}
-    {3087802800 -36000 0 HAST}
-    {3098692800 -32400 1 HADT}
-    {3119252400 -36000 0 HAST}
-    {3130142400 -32400 1 HADT}
-    {3150702000 -36000 0 HAST}
-    {3161592000 -32400 1 HADT}
-    {3182151600 -36000 0 HAST}
-    {3193041600 -32400 1 HADT}
-    {3213601200 -36000 0 HAST}
-    {3225096000 -32400 1 HADT}
-    {3245655600 -36000 0 HAST}
-    {3256545600 -32400 1 HADT}
-    {3277105200 -36000 0 HAST}
-    {3287995200 -32400 1 HADT}
-    {3308554800 -36000 0 HAST}
-    {3319444800 -32400 1 HADT}
-    {3340004400 -36000 0 HAST}
-    {3350894400 -32400 1 HADT}
-    {3371454000 -36000 0 HAST}
-    {3382948800 -32400 1 HADT}
-    {3403508400 -36000 0 HAST}
-    {3414398400 -32400 1 HADT}
-    {3434958000 -36000 0 HAST}
-    {3445848000 -32400 1 HADT}
-    {3466407600 -36000 0 HAST}
-    {3477297600 -32400 1 HADT}
-    {3497857200 -36000 0 HAST}
-    {3508747200 -32400 1 HADT}
-    {3529306800 -36000 0 HAST}
-    {3540196800 -32400 1 HADT}
-    {3560756400 -36000 0 HAST}
-    {3572251200 -32400 1 HADT}
-    {3592810800 -36000 0 HAST}
-    {3603700800 -32400 1 HADT}
-    {3624260400 -36000 0 HAST}
-    {3635150400 -32400 1 HADT}
-    {3655710000 -36000 0 HAST}
-    {3666600000 -32400 1 HADT}
-    {3687159600 -36000 0 HAST}
-    {3698049600 -32400 1 HADT}
-    {3718609200 -36000 0 HAST}
-    {3730104000 -32400 1 HADT}
-    {3750663600 -36000 0 HAST}
-    {3761553600 -32400 1 HADT}
-    {3782113200 -36000 0 HAST}
-    {3793003200 -32400 1 HADT}
-    {3813562800 -36000 0 HAST}
-    {3824452800 -32400 1 HADT}
-    {3845012400 -36000 0 HAST}
-    {3855902400 -32400 1 HADT}
-    {3876462000 -36000 0 HAST}
-    {3887352000 -32400 1 HADT}
-    {3907911600 -36000 0 HAST}
-    {3919406400 -32400 1 HADT}
-    {3939966000 -36000 0 HAST}
-    {3950856000 -32400 1 HADT}
-    {3971415600 -36000 0 HAST}
-    {3982305600 -32400 1 HADT}
-    {4002865200 -36000 0 HAST}
-    {4013755200 -32400 1 HADT}
-    {4034314800 -36000 0 HAST}
-    {4045204800 -32400 1 HADT}
-    {4065764400 -36000 0 HAST}
-    {4076654400 -32400 1 HADT}
-    {4097214000 -36000 0 HAST}
+    {439034400 -36000 0 HST}
+    {452088000 -32400 1 HDT}
+    {467809200 -36000 0 HST}
+    {483537600 -32400 1 HDT}
+    {499258800 -36000 0 HST}
+    {514987200 -32400 1 HDT}
+    {530708400 -36000 0 HST}
+    {544622400 -32400 1 HDT}
+    {562158000 -36000 0 HST}
+    {576072000 -32400 1 HDT}
+    {594212400 -36000 0 HST}
+    {607521600 -32400 1 HDT}
+    {625662000 -36000 0 HST}
+    {638971200 -32400 1 HDT}
+    {657111600 -36000 0 HST}
+    {671025600 -32400 1 HDT}
+    {688561200 -36000 0 HST}
+    {702475200 -32400 1 HDT}
+    {720010800 -36000 0 HST}
+    {733924800 -32400 1 HDT}
+    {752065200 -36000 0 HST}
+    {765374400 -32400 1 HDT}
+    {783514800 -36000 0 HST}
+    {796824000 -32400 1 HDT}
+    {814964400 -36000 0 HST}
+    {828878400 -32400 1 HDT}
+    {846414000 -36000 0 HST}
+    {860328000 -32400 1 HDT}
+    {877863600 -36000 0 HST}
+    {891777600 -32400 1 HDT}
+    {909313200 -36000 0 HST}
+    {923227200 -32400 1 HDT}
+    {941367600 -36000 0 HST}
+    {954676800 -32400 1 HDT}
+    {972817200 -36000 0 HST}
+    {986126400 -32400 1 HDT}
+    {1004266800 -36000 0 HST}
+    {1018180800 -32400 1 HDT}
+    {1035716400 -36000 0 HST}
+    {1049630400 -32400 1 HDT}
+    {1067166000 -36000 0 HST}
+    {1081080000 -32400 1 HDT}
+    {1099220400 -36000 0 HST}
+    {1112529600 -32400 1 HDT}
+    {1130670000 -36000 0 HST}
+    {1143979200 -32400 1 HDT}
+    {1162119600 -36000 0 HST}
+    {1173614400 -32400 1 HDT}
+    {1194174000 -36000 0 HST}
+    {1205064000 -32400 1 HDT}
+    {1225623600 -36000 0 HST}
+    {1236513600 -32400 1 HDT}
+    {1257073200 -36000 0 HST}
+    {1268568000 -32400 1 HDT}
+    {1289127600 -36000 0 HST}
+    {1300017600 -32400 1 HDT}
+    {1320577200 -36000 0 HST}
+    {1331467200 -32400 1 HDT}
+    {1352026800 -36000 0 HST}
+    {1362916800 -32400 1 HDT}
+    {1383476400 -36000 0 HST}
+    {1394366400 -32400 1 HDT}
+    {1414926000 -36000 0 HST}
+    {1425816000 -32400 1 HDT}
+    {1446375600 -36000 0 HST}
+    {1457870400 -32400 1 HDT}
+    {1478430000 -36000 0 HST}
+    {1489320000 -32400 1 HDT}
+    {1509879600 -36000 0 HST}
+    {1520769600 -32400 1 HDT}
+    {1541329200 -36000 0 HST}
+    {1552219200 -32400 1 HDT}
+    {1572778800 -36000 0 HST}
+    {1583668800 -32400 1 HDT}
+    {1604228400 -36000 0 HST}
+    {1615723200 -32400 1 HDT}
+    {1636282800 -36000 0 HST}
+    {1647172800 -32400 1 HDT}
+    {1667732400 -36000 0 HST}
+    {1678622400 -32400 1 HDT}
+    {1699182000 -36000 0 HST}
+    {1710072000 -32400 1 HDT}
+    {1730631600 -36000 0 HST}
+    {1741521600 -32400 1 HDT}
+    {1762081200 -36000 0 HST}
+    {1772971200 -32400 1 HDT}
+    {1793530800 -36000 0 HST}
+    {1805025600 -32400 1 HDT}
+    {1825585200 -36000 0 HST}
+    {1836475200 -32400 1 HDT}
+    {1857034800 -36000 0 HST}
+    {1867924800 -32400 1 HDT}
+    {1888484400 -36000 0 HST}
+    {1899374400 -32400 1 HDT}
+    {1919934000 -36000 0 HST}
+    {1930824000 -32400 1 HDT}
+    {1951383600 -36000 0 HST}
+    {1962878400 -32400 1 HDT}
+    {1983438000 -36000 0 HST}
+    {1994328000 -32400 1 HDT}
+    {2014887600 -36000 0 HST}
+    {2025777600 -32400 1 HDT}
+    {2046337200 -36000 0 HST}
+    {2057227200 -32400 1 HDT}
+    {2077786800 -36000 0 HST}
+    {2088676800 -32400 1 HDT}
+    {2109236400 -36000 0 HST}
+    {2120126400 -32400 1 HDT}
+    {2140686000 -36000 0 HST}
+    {2152180800 -32400 1 HDT}
+    {2172740400 -36000 0 HST}
+    {2183630400 -32400 1 HDT}
+    {2204190000 -36000 0 HST}
+    {2215080000 -32400 1 HDT}
+    {2235639600 -36000 0 HST}
+    {2246529600 -32400 1 HDT}
+    {2267089200 -36000 0 HST}
+    {2277979200 -32400 1 HDT}
+    {2298538800 -36000 0 HST}
+    {2309428800 -32400 1 HDT}
+    {2329988400 -36000 0 HST}
+    {2341483200 -32400 1 HDT}
+    {2362042800 -36000 0 HST}
+    {2372932800 -32400 1 HDT}
+    {2393492400 -36000 0 HST}
+    {2404382400 -32400 1 HDT}
+    {2424942000 -36000 0 HST}
+    {2435832000 -32400 1 HDT}
+    {2456391600 -36000 0 HST}
+    {2467281600 -32400 1 HDT}
+    {2487841200 -36000 0 HST}
+    {2499336000 -32400 1 HDT}
+    {2519895600 -36000 0 HST}
+    {2530785600 -32400 1 HDT}
+    {2551345200 -36000 0 HST}
+    {2562235200 -32400 1 HDT}
+    {2582794800 -36000 0 HST}
+    {2593684800 -32400 1 HDT}
+    {2614244400 -36000 0 HST}
+    {2625134400 -32400 1 HDT}
+    {2645694000 -36000 0 HST}
+    {2656584000 -32400 1 HDT}
+    {2677143600 -36000 0 HST}
+    {2688638400 -32400 1 HDT}
+    {2709198000 -36000 0 HST}
+    {2720088000 -32400 1 HDT}
+    {2740647600 -36000 0 HST}
+    {2751537600 -32400 1 HDT}
+    {2772097200 -36000 0 HST}
+    {2782987200 -32400 1 HDT}
+    {2803546800 -36000 0 HST}
+    {2814436800 -32400 1 HDT}
+    {2834996400 -36000 0 HST}
+    {2846491200 -32400 1 HDT}
+    {2867050800 -36000 0 HST}
+    {2877940800 -32400 1 HDT}
+    {2898500400 -36000 0 HST}
+    {2909390400 -32400 1 HDT}
+    {2929950000 -36000 0 HST}
+    {2940840000 -32400 1 HDT}
+    {2961399600 -36000 0 HST}
+    {2972289600 -32400 1 HDT}
+    {2992849200 -36000 0 HST}
+    {3003739200 -32400 1 HDT}
+    {3024298800 -36000 0 HST}
+    {3035793600 -32400 1 HDT}
+    {3056353200 -36000 0 HST}
+    {3067243200 -32400 1 HDT}
+    {3087802800 -36000 0 HST}
+    {3098692800 -32400 1 HDT}
+    {3119252400 -36000 0 HST}
+    {3130142400 -32400 1 HDT}
+    {3150702000 -36000 0 HST}
+    {3161592000 -32400 1 HDT}
+    {3182151600 -36000 0 HST}
+    {3193041600 -32400 1 HDT}
+    {3213601200 -36000 0 HST}
+    {3225096000 -32400 1 HDT}
+    {3245655600 -36000 0 HST}
+    {3256545600 -32400 1 HDT}
+    {3277105200 -36000 0 HST}
+    {3287995200 -32400 1 HDT}
+    {3308554800 -36000 0 HST}
+    {3319444800 -32400 1 HDT}
+    {3340004400 -36000 0 HST}
+    {3350894400 -32400 1 HDT}
+    {3371454000 -36000 0 HST}
+    {3382948800 -32400 1 HDT}
+    {3403508400 -36000 0 HST}
+    {3414398400 -32400 1 HDT}
+    {3434958000 -36000 0 HST}
+    {3445848000 -32400 1 HDT}
+    {3466407600 -36000 0 HST}
+    {3477297600 -32400 1 HDT}
+    {3497857200 -36000 0 HST}
+    {3508747200 -32400 1 HDT}
+    {3529306800 -36000 0 HST}
+    {3540196800 -32400 1 HDT}
+    {3560756400 -36000 0 HST}
+    {3572251200 -32400 1 HDT}
+    {3592810800 -36000 0 HST}
+    {3603700800 -32400 1 HDT}
+    {3624260400 -36000 0 HST}
+    {3635150400 -32400 1 HDT}
+    {3655710000 -36000 0 HST}
+    {3666600000 -32400 1 HDT}
+    {3687159600 -36000 0 HST}
+    {3698049600 -32400 1 HDT}
+    {3718609200 -36000 0 HST}
+    {3730104000 -32400 1 HDT}
+    {3750663600 -36000 0 HST}
+    {3761553600 -32400 1 HDT}
+    {3782113200 -36000 0 HST}
+    {3793003200 -32400 1 HDT}
+    {3813562800 -36000 0 HST}
+    {3824452800 -32400 1 HDT}
+    {3845012400 -36000 0 HST}
+    {3855902400 -32400 1 HDT}
+    {3876462000 -36000 0 HST}
+    {3887352000 -32400 1 HDT}
+    {3907911600 -36000 0 HST}
+    {3919406400 -32400 1 HDT}
+    {3939966000 -36000 0 HST}
+    {3950856000 -32400 1 HDT}
+    {3971415600 -36000 0 HST}
+    {3982305600 -32400 1 HDT}
+    {4002865200 -36000 0 HST}
+    {4013755200 -32400 1 HDT}
+    {4034314800 -36000 0 HST}
+    {4045204800 -32400 1 HDT}
+    {4065764400 -36000 0 HST}
+    {4076654400 -32400 1 HDT}
+    {4097214000 -36000 0 HST}
 }
diff --git a/library/tzdata/America/Anguilla b/library/tzdata/America/Anguilla
index cfe7483..39a0d18 100644
--- a/library/tzdata/America/Anguilla
+++ b/library/tzdata/America/Anguilla
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Anguilla) {
-    {-9223372036854775808 -15136 0 LMT}
-    {-1825098464 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Anguilla) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/Antigua b/library/tzdata/America/Antigua
index 5433e9b..be0c88e 100644
--- a/library/tzdata/America/Antigua
+++ b/library/tzdata/America/Antigua
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Antigua) {
-    {-9223372036854775808 -14832 0 LMT}
-    {-1825098768 -18000 0 EST}
-    {-599598000 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Antigua) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/Araguaina b/library/tzdata/America/Araguaina
index 5073c56..e4a0d52 100644
--- a/library/tzdata/America/Araguaina
+++ b/library/tzdata/America/Araguaina
@@ -54,4 +54,7 @@ set TZData(:America/Araguaina) {
     {1036292400 -7200 1 BRST}
     {1045360800 -10800 0 BRT}
     {1064368800 -10800 0 BRT}
+    {1350788400 -7200 0 BRST}
+    {1361066400 -10800 0 BRT}
+    {1378000800 -10800 0 BRT}
 }
diff --git a/library/tzdata/America/Argentina/San_Luis b/library/tzdata/America/Argentina/San_Luis
index bec1554..8ca55d7 100644
--- a/library/tzdata/America/Argentina/San_Luis
+++ b/library/tzdata/America/Argentina/San_Luis
@@ -64,5 +64,5 @@ set TZData(:America/Argentina/San_Luis) {
     {1205031600 -14400 0 WART}
     {1223784000 -10800 1 WARST}
     {1236481200 -14400 0 WART}
-    {1255233600 -10800 1 WARST}
+    {1255233600 -10800 0 ART}
 }
diff --git a/library/tzdata/America/Aruba b/library/tzdata/America/Aruba
index 92f182d..e02d5fc 100644
--- a/library/tzdata/America/Aruba
+++ b/library/tzdata/America/Aruba
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Aruba) {
-    {-9223372036854775808 -16824 0 LMT}
-    {-1826738376 -16200 0 ANT}
-    {-157750200 -14400 0 AST}
+if {![info exists TZData(America/Curacao)]} {
+    LoadTimeZoneFile America/Curacao
 }
+set TZData(:America/Aruba) $TZData(:America/Curacao)
diff --git a/library/tzdata/America/Asuncion b/library/tzdata/America/Asuncion
index 14bbab2..9ea30da 100644
--- a/library/tzdata/America/Asuncion
+++ b/library/tzdata/America/Asuncion
@@ -82,178 +82,178 @@ set TZData(:America/Asuncion) {
     {1317528000 -10800 1 PYST}
     {1333854000 -14400 0 PYT}
     {1349582400 -10800 1 PYST}
-    {1365908400 -14400 0 PYT}
+    {1364094000 -14400 0 PYT}
     {1381032000 -10800 1 PYST}
-    {1397358000 -14400 0 PYT}
+    {1395543600 -14400 0 PYT}
     {1412481600 -10800 1 PYST}
-    {1428807600 -14400 0 PYT}
+    {1426993200 -14400 0 PYT}
     {1443931200 -10800 1 PYST}
-    {1460257200 -14400 0 PYT}
+    {1459047600 -14400 0 PYT}
     {1475380800 -10800 1 PYST}
-    {1491706800 -14400 0 PYT}
+    {1490497200 -14400 0 PYT}
     {1506830400 -10800 1 PYST}
-    {1523156400 -14400 0 PYT}
+    {1521946800 -14400 0 PYT}
     {1538884800 -10800 1 PYST}
-    {1555210800 -14400 0 PYT}
+    {1553396400 -14400 0 PYT}
     {1570334400 -10800 1 PYST}
-    {1586660400 -14400 0 PYT}
+    {1584846000 -14400 0 PYT}
     {1601784000 -10800 1 PYST}
-    {1618110000 -14400 0 PYT}
+    {1616900400 -14400 0 PYT}
     {1633233600 -10800 1 PYST}
-    {1649559600 -14400 0 PYT}
+    {1648350000 -14400 0 PYT}
     {1664683200 -10800 1 PYST}
-    {1681009200 -14400 0 PYT}
+    {1679799600 -14400 0 PYT}
     {1696132800 -10800 1 PYST}
-    {1713063600 -14400 0 PYT}
+    {1711249200 -14400 0 PYT}
     {1728187200 -10800 1 PYST}
-    {1744513200 -14400 0 PYT}
+    {1742698800 -14400 0 PYT}
     {1759636800 -10800 1 PYST}
-    {1775962800 -14400 0 PYT}
+    {1774148400 -14400 0 PYT}
     {1791086400 -10800 1 PYST}
-    {1807412400 -14400 0 PYT}
+    {1806202800 -14400 0 PYT}
     {1822536000 -10800 1 PYST}
-    {1838862000 -14400 0 PYT}
+    {1837652400 -14400 0 PYT}
     {1853985600 -10800 1 PYST}
-    {1870311600 -14400 0 PYT}
+    {1869102000 -14400 0 PYT}
     {1886040000 -10800 1 PYST}
-    {1902366000 -14400 0 PYT}
+    {1900551600 -14400 0 PYT}
     {1917489600 -10800 1 PYST}
-    {1933815600 -14400 0 PYT}
+    {1932001200 -14400 0 PYT}
     {1948939200 -10800 1 PYST}
-    {1965265200 -14400 0 PYT}
+    {1964055600 -14400 0 PYT}
     {1980388800 -10800 1 PYST}
-    {1996714800 -14400 0 PYT}
+    {1995505200 -14400 0 PYT}
     {2011838400 -10800 1 PYST}
-    {2028164400 -14400 0 PYT}
+    {2026954800 -14400 0 PYT}
     {2043288000 -10800 1 PYST}
-    {2059614000 -14400 0 PYT}
+    {2058404400 -14400 0 PYT}
     {2075342400 -10800 1 PYST}
-    {2091668400 -14400 0 PYT}
+    {2089854000 -14400 0 PYT}
     {2106792000 -10800 1 PYST}
-    {2123118000 -14400 0 PYT}
+    {2121303600 -14400 0 PYT}
     {2138241600 -10800 1 PYST}
-    {2154567600 -14400 0 PYT}
+    {2153358000 -14400 0 PYT}
     {2169691200 -10800 1 PYST}
-    {2186017200 -14400 0 PYT}
+    {2184807600 -14400 0 PYT}
     {2201140800 -10800 1 PYST}
-    {2217466800 -14400 0 PYT}
+    {2216257200 -14400 0 PYT}
     {2233195200 -10800 1 PYST}
-    {2249521200 -14400 0 PYT}
+    {2247706800 -14400 0 PYT}
     {2264644800 -10800 1 PYST}
-    {2280970800 -14400 0 PYT}
+    {2279156400 -14400 0 PYT}
     {2296094400 -10800 1 PYST}
-    {2312420400 -14400 0 PYT}
+    {2310606000 -14400 0 PYT}
     {2327544000 -10800 1 PYST}
-    {2343870000 -14400 0 PYT}
+    {2342660400 -14400 0 PYT}
     {2358993600 -10800 1 PYST}
-    {2375319600 -14400 0 PYT}
+    {2374110000 -14400 0 PYT}
     {2390443200 -10800 1 PYST}
-    {2406769200 -14400 0 PYT}
+    {2405559600 -14400 0 PYT}
     {2422497600 -10800 1 PYST}
-    {2438823600 -14400 0 PYT}
+    {2437009200 -14400 0 PYT}
     {2453947200 -10800 1 PYST}
-    {2470273200 -14400 0 PYT}
+    {2468458800 -14400 0 PYT}
     {2485396800 -10800 1 PYST}
-    {2501722800 -14400 0 PYT}
+    {2500513200 -14400 0 PYT}
     {2516846400 -10800 1 PYST}
-    {2533172400 -14400 0 PYT}
+    {2531962800 -14400 0 PYT}
     {2548296000 -10800 1 PYST}
-    {2564622000 -14400 0 PYT}
+    {2563412400 -14400 0 PYT}
     {2579745600 -10800 1 PYST}
-    {2596676400 -14400 0 PYT}
+    {2594862000 -14400 0 PYT}
     {2611800000 -10800 1 PYST}
-    {2628126000 -14400 0 PYT}
+    {2626311600 -14400 0 PYT}
     {2643249600 -10800 1 PYST}
-    {2659575600 -14400 0 PYT}
+    {2657761200 -14400 0 PYT}
     {2674699200 -10800 1 PYST}
-    {2691025200 -14400 0 PYT}
+    {2689815600 -14400 0 PYT}
     {2706148800 -10800 1 PYST}
-    {2722474800 -14400 0 PYT}
+    {2721265200 -14400 0 PYT}
     {2737598400 -10800 1 PYST}
-    {2753924400 -14400 0 PYT}
+    {2752714800 -14400 0 PYT}
     {2769652800 -10800 1 PYST}
-    {2785978800 -14400 0 PYT}
+    {2784164400 -14400 0 PYT}
     {2801102400 -10800 1 PYST}
-    {2817428400 -14400 0 PYT}
+    {2815614000 -14400 0 PYT}
     {2832552000 -10800 1 PYST}
-    {2848878000 -14400 0 PYT}
+    {2847668400 -14400 0 PYT}
     {2864001600 -10800 1 PYST}
-    {2880327600 -14400 0 PYT}
+    {2879118000 -14400 0 PYT}
     {2895451200 -10800 1 PYST}
-    {2911777200 -14400 0 PYT}
+    {2910567600 -14400 0 PYT}
     {2926900800 -10800 1 PYST}
-    {2943226800 -14400 0 PYT}
+    {2942017200 -14400 0 PYT}
     {2958955200 -10800 1 PYST}
-    {2975281200 -14400 0 PYT}
+    {2973466800 -14400 0 PYT}
     {2990404800 -10800 1 PYST}
-    {3006730800 -14400 0 PYT}
+    {3004916400 -14400 0 PYT}
     {3021854400 -10800 1 PYST}
-    {3038180400 -14400 0 PYT}
+    {3036970800 -14400 0 PYT}
     {3053304000 -10800 1 PYST}
-    {3069630000 -14400 0 PYT}
+    {3068420400 -14400 0 PYT}
     {3084753600 -10800 1 PYST}
-    {3101079600 -14400 0 PYT}
+    {3099870000 -14400 0 PYT}
     {3116808000 -10800 1 PYST}
-    {3133134000 -14400 0 PYT}
+    {3131319600 -14400 0 PYT}
     {3148257600 -10800 1 PYST}
-    {3164583600 -14400 0 PYT}
+    {3162769200 -14400 0 PYT}
     {3179707200 -10800 1 PYST}
-    {3196033200 -14400 0 PYT}
+    {3194218800 -14400 0 PYT}
     {3211156800 -10800 1 PYST}
-    {3227482800 -14400 0 PYT}
+    {3226273200 -14400 0 PYT}
     {3242606400 -10800 1 PYST}
-    {3258932400 -14400 0 PYT}
+    {3257722800 -14400 0 PYT}
     {3274056000 -10800 1 PYST}
-    {3290382000 -14400 0 PYT}
+    {3289172400 -14400 0 PYT}
     {3306110400 -10800 1 PYST}
-    {3322436400 -14400 0 PYT}
+    {3320622000 -14400 0 PYT}
     {3337560000 -10800 1 PYST}
-    {3353886000 -14400 0 PYT}
+    {3352071600 -14400 0 PYT}
     {3369009600 -10800 1 PYST}
-    {3385335600 -14400 0 PYT}
+    {3384126000 -14400 0 PYT}
     {3400459200 -10800 1 PYST}
-    {3416785200 -14400 0 PYT}
+    {3415575600 -14400 0 PYT}
     {3431908800 -10800 1 PYST}
-    {3448234800 -14400 0 PYT}
+    {3447025200 -14400 0 PYT}
     {3463358400 -10800 1 PYST}
-    {3480289200 -14400 0 PYT}
+    {3478474800 -14400 0 PYT}
     {3495412800 -10800 1 PYST}
-    {3511738800 -14400 0 PYT}
+    {3509924400 -14400 0 PYT}
     {3526862400 -10800 1 PYST}
-    {3543188400 -14400 0 PYT}
+    {3541374000 -14400 0 PYT}
     {3558312000 -10800 1 PYST}
-    {3574638000 -14400 0 PYT}
+    {3573428400 -14400 0 PYT}
     {3589761600 -10800 1 PYST}
-    {3606087600 -14400 0 PYT}
+    {3604878000 -14400 0 PYT}
     {3621211200 -10800 1 PYST}
-    {3637537200 -14400 0 PYT}
+    {3636327600 -14400 0 PYT}
     {3653265600 -10800 1 PYST}
-    {3669591600 -14400 0 PYT}
+    {3667777200 -14400 0 PYT}
     {3684715200 -10800 1 PYST}
-    {3701041200 -14400 0 PYT}
+    {3699226800 -14400 0 PYT}
     {3716164800 -10800 1 PYST}
-    {3732490800 -14400 0 PYT}
+    {3731281200 -14400 0 PYT}
     {3747614400 -10800 1 PYST}
-    {3763940400 -14400 0 PYT}
+    {3762730800 -14400 0 PYT}
     {3779064000 -10800 1 PYST}
-    {3795390000 -14400 0 PYT}
+    {3794180400 -14400 0 PYT}
     {3810513600 -10800 1 PYST}
-    {3826839600 -14400 0 PYT}
+    {3825630000 -14400 0 PYT}
     {3842568000 -10800 1 PYST}
-    {3858894000 -14400 0 PYT}
+    {3857079600 -14400 0 PYT}
     {3874017600 -10800 1 PYST}
-    {3890343600 -14400 0 PYT}
+    {3888529200 -14400 0 PYT}
     {3905467200 -10800 1 PYST}
-    {3921793200 -14400 0 PYT}
+    {3920583600 -14400 0 PYT}
     {3936916800 -10800 1 PYST}
-    {3953242800 -14400 0 PYT}
+    {3952033200 -14400 0 PYT}
     {3968366400 -10800 1 PYST}
-    {3984692400 -14400 0 PYT}
+    {3983482800 -14400 0 PYT}
     {4000420800 -10800 1 PYST}
-    {4016746800 -14400 0 PYT}
+    {4014932400 -14400 0 PYT}
     {4031870400 -10800 1 PYST}
-    {4048196400 -14400 0 PYT}
+    {4046382000 -14400 0 PYT}
     {4063320000 -10800 1 PYST}
-    {4079646000 -14400 0 PYT}
+    {4077831600 -14400 0 PYT}
     {4094769600 -10800 1 PYST}
 }
diff --git a/library/tzdata/America/Bahia b/library/tzdata/America/Bahia
index 86c9411..ac67b71 100644
--- a/library/tzdata/America/Bahia
+++ b/library/tzdata/America/Bahia
@@ -64,179 +64,5 @@ set TZData(:America/Bahia) {
     {1064368800 -10800 0 BRT}
     {1318734000 -7200 0 BRST}
     {1330221600 -10800 0 BRT}
-    {1350788400 -7200 1 BRST}
-    {1361066400 -10800 0 BRT}
-    {1382238000 -7200 1 BRST}
-    {1392516000 -10800 0 BRT}
-    {1413687600 -7200 1 BRST}
-    {1424570400 -10800 0 BRT}
-    {1445137200 -7200 1 BRST}
-    {1456020000 -10800 0 BRT}
-    {1476586800 -7200 1 BRST}
-    {1487469600 -10800 0 BRT}
-    {1508036400 -7200 1 BRST}
-    {1518919200 -10800 0 BRT}
-    {1540090800 -7200 1 BRST}
-    {1550368800 -10800 0 BRT}
-    {1571540400 -7200 1 BRST}
-    {1581818400 -10800 0 BRT}
-    {1602990000 -7200 1 BRST}
-    {1613872800 -10800 0 BRT}
-    {1634439600 -7200 1 BRST}
-    {1645322400 -10800 0 BRT}
-    {1665889200 -7200 1 BRST}
-    {1677376800 -10800 0 BRT}
-    {1697338800 -7200 1 BRST}
-    {1708221600 -10800 0 BRT}
-    {1729393200 -7200 1 BRST}
-    {1739671200 -10800 0 BRT}
-    {1760842800 -7200 1 BRST}
-    {1771725600 -10800 0 BRT}
-    {1792292400 -7200 1 BRST}
-    {1803175200 -10800 0 BRT}
-    {1823742000 -7200 1 BRST}
-    {1834624800 -10800 0 BRT}
-    {1855191600 -7200 1 BRST}
-    {1866074400 -10800 0 BRT}
-    {1887246000 -7200 1 BRST}
-    {1897524000 -10800 0 BRT}
-    {1918695600 -7200 1 BRST}
-    {1928973600 -10800 0 BRT}
-    {1950145200 -7200 1 BRST}
-    {1960423200 -10800 0 BRT}
-    {1981594800 -7200 1 BRST}
-    {1992477600 -10800 0 BRT}
-    {2013044400 -7200 1 BRST}
-    {2024532000 -10800 0 BRT}
-    {2044494000 -7200 1 BRST}
-    {2055376800 -10800 0 BRT}
-    {2076548400 -7200 1 BRST}
-    {2086826400 -10800 0 BRT}
-    {2107998000 -7200 1 BRST}
-    {2118880800 -10800 0 BRT}
-    {2139447600 -7200 1 BRST}
-    {2150330400 -10800 0 BRT}
-    {2170897200 -7200 1 BRST}
-    {2181780000 -10800 0 BRT}
-    {2202346800 -7200 1 BRST}
-    {2213229600 -10800 0 BRT}
-    {2234401200 -7200 1 BRST}
-    {2244679200 -10800 0 BRT}
-    {2265850800 -7200 1 BRST}
-    {2276128800 -10800 0 BRT}
-    {2297300400 -7200 1 BRST}
-    {2307578400 -10800 0 BRT}
-    {2328750000 -7200 1 BRST}
-    {2339632800 -10800 0 BRT}
-    {2360199600 -7200 1 BRST}
-    {2371082400 -10800 0 BRT}
-    {2391649200 -7200 1 BRST}
-    {2402532000 -10800 0 BRT}
-    {2423703600 -7200 1 BRST}
-    {2433981600 -10800 0 BRT}
-    {2455153200 -7200 1 BRST}
-    {2465431200 -10800 0 BRT}
-    {2486602800 -7200 1 BRST}
-    {2497485600 -10800 0 BRT}
-    {2518052400 -7200 1 BRST}
-    {2528935200 -10800 0 BRT}
-    {2549502000 -7200 1 BRST}
-    {2560384800 -10800 0 BRT}
-    {2580951600 -7200 1 BRST}
-    {2591834400 -10800 0 BRT}
-    {2613006000 -7200 1 BRST}
-    {2623284000 -10800 0 BRT}
-    {2644455600 -7200 1 BRST}
-    {2654733600 -10800 0 BRT}
-    {2675905200 -7200 1 BRST}
-    {2686788000 -10800 0 BRT}
-    {2707354800 -7200 1 BRST}
-    {2718237600 -10800 0 BRT}
-    {2738804400 -7200 1 BRST}
-    {2749687200 -10800 0 BRT}
-    {2770858800 -7200 1 BRST}
-    {2781136800 -10800 0 BRT}
-    {2802308400 -7200 1 BRST}
-    {2812586400 -10800 0 BRT}
-    {2833758000 -7200 1 BRST}
-    {2844036000 -10800 0 BRT}
-    {2865207600 -7200 1 BRST}
-    {2876090400 -10800 0 BRT}
-    {2896657200 -7200 1 BRST}
-    {2907540000 -10800 0 BRT}
-    {2928106800 -7200 1 BRST}
-    {2938989600 -10800 0 BRT}
-    {2960161200 -7200 1 BRST}
-    {2970439200 -10800 0 BRT}
-    {2991610800 -7200 1 BRST}
-    {3001888800 -10800 0 BRT}
-    {3023060400 -7200 1 BRST}
-    {3033943200 -10800 0 BRT}
-    {3054510000 -7200 1 BRST}
-    {3065392800 -10800 0 BRT}
-    {3085959600 -7200 1 BRST}
-    {3096842400 -10800 0 BRT}
-    {3118014000 -7200 1 BRST}
-    {3128292000 -10800 0 BRT}
-    {3149463600 -7200 1 BRST}
-    {3159741600 -10800 0 BRT}
-    {3180913200 -7200 1 BRST}
-    {3191191200 -10800 0 BRT}
-    {3212362800 -7200 1 BRST}
-    {3223245600 -10800 0 BRT}
-    {3243812400 -7200 1 BRST}
-    {3254695200 -10800 0 BRT}
-    {3275262000 -7200 1 BRST}
-    {3286144800 -10800 0 BRT}
-    {3307316400 -7200 1 BRST}
-    {3317594400 -10800 0 BRT}
-    {3338766000 -7200 1 BRST}
-    {3349044000 -10800 0 BRT}
-    {3370215600 -7200 1 BRST}
-    {3381098400 -10800 0 BRT}
-    {3401665200 -7200 1 BRST}
-    {3412548000 -10800 0 BRT}
-    {3433114800 -7200 1 BRST}
-    {3443997600 -10800 0 BRT}
-    {3464564400 -7200 1 BRST}
-    {3475447200 -10800 0 BRT}
-    {3496618800 -7200 1 BRST}
-    {3506896800 -10800 0 BRT}
-    {3528068400 -7200 1 BRST}
-    {3538346400 -10800 0 BRT}
-    {3559518000 -7200 1 BRST}
-    {3570400800 -10800 0 BRT}
-    {3590967600 -7200 1 BRST}
-    {3601850400 -10800 0 BRT}
-    {3622417200 -7200 1 BRST}
-    {3633300000 -10800 0 BRT}
-    {3654471600 -7200 1 BRST}
-    {3664749600 -10800 0 BRT}
-    {3685921200 -7200 1 BRST}
-    {3696199200 -10800 0 BRT}
-    {3717370800 -7200 1 BRST}
-    {3727648800 -10800 0 BRT}
-    {3748820400 -7200 1 BRST}
-    {3759703200 -10800 0 BRT}
-    {3780270000 -7200 1 BRST}
-    {3791152800 -10800 0 BRT}
-    {3811719600 -7200 1 BRST}
-    {3822602400 -10800 0 BRT}
-    {3843774000 -7200 1 BRST}
-    {3854052000 -10800 0 BRT}
-    {3875223600 -7200 1 BRST}
-    {3885501600 -10800 0 BRT}
-    {3906673200 -7200 1 BRST}
-    {3917556000 -10800 0 BRT}
-    {3938122800 -7200 1 BRST}
-    {3949005600 -10800 0 BRT}
-    {3969572400 -7200 1 BRST}
-    {3980455200 -10800 0 BRT}
-    {4001626800 -7200 1 BRST}
-    {4011904800 -10800 0 BRT}
-    {4033076400 -7200 1 BRST}
-    {4043354400 -10800 0 BRT}
-    {4064526000 -7200 1 BRST}
-    {4074804000 -10800 0 BRT}
-    {4095975600 -7200 1 BRST}
+    {1350784800 -10800 0 BRT}
 }
diff --git a/library/tzdata/America/Barbados b/library/tzdata/America/Barbados
index 5c06408..ea17073 100644
--- a/library/tzdata/America/Barbados
+++ b/library/tzdata/America/Barbados
@@ -1,9 +1,9 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:America/Barbados) {
-    {-9223372036854775808 -14308 0 LMT}
-    {-1451678492 -14308 0 BMT}
-    {-1199217692 -14400 0 AST}
+    {-9223372036854775808 -14309 0 LMT}
+    {-1451678491 -14309 0 BMT}
+    {-1199217691 -14400 0 AST}
     {234943200 -10800 1 ADT}
     {244616400 -14400 0 AST}
     {261554400 -10800 1 ADT}
diff --git a/library/tzdata/America/Bogota b/library/tzdata/America/Bogota
index f727d17..b28abc1 100644
--- a/library/tzdata/America/Bogota
+++ b/library/tzdata/America/Bogota
@@ -1,9 +1,9 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:America/Bogota) {
-    {-9223372036854775808 -17780 0 LMT}
-    {-2707671820 -17780 0 BMT}
-    {-1739041420 -18000 0 COT}
+    {-9223372036854775808 -17776 0 LMT}
+    {-2707671824 -17776 0 BMT}
+    {-1739041424 -18000 0 COT}
     {704869200 -14400 1 COST}
     {733896000 -18000 0 COT}
 }
diff --git a/library/tzdata/America/Cancun b/library/tzdata/America/Cancun
index 1620b15..fe5a060 100644
--- a/library/tzdata/America/Cancun
+++ b/library/tzdata/America/Cancun
@@ -43,174 +43,5 @@ set TZData(:America/Cancun) {
     {1382857200 -21600 0 CST}
     {1396771200 -18000 1 CDT}
     {1414306800 -21600 0 CST}
-    {1428220800 -18000 1 CDT}
-    {1445756400 -21600 0 CST}
-    {1459670400 -18000 1 CDT}
-    {1477810800 -21600 0 CST}
-    {1491120000 -18000 1 CDT}
-    {1509260400 -21600 0 CST}
-    {1522569600 -18000 1 CDT}
-    {1540710000 -21600 0 CST}
-    {1554624000 -18000 1 CDT}
-    {1572159600 -21600 0 CST}
-    {1586073600 -18000 1 CDT}
-    {1603609200 -21600 0 CST}
-    {1617523200 -18000 1 CDT}
-    {1635663600 -21600 0 CST}
-    {1648972800 -18000 1 CDT}
-    {1667113200 -21600 0 CST}
-    {1680422400 -18000 1 CDT}
-    {1698562800 -21600 0 CST}
-    {1712476800 -18000 1 CDT}
-    {1730012400 -21600 0 CST}
-    {1743926400 -18000 1 CDT}
-    {1761462000 -21600 0 CST}
-    {1775376000 -18000 1 CDT}
-    {1792911600 -21600 0 CST}
-    {1806825600 -18000 1 CDT}
-    {1824966000 -21600 0 CST}
-    {1838275200 -18000 1 CDT}
-    {1856415600 -21600 0 CST}
-    {1869724800 -18000 1 CDT}
-    {1887865200 -21600 0 CST}
-    {1901779200 -18000 1 CDT}
-    {1919314800 -21600 0 CST}
-    {1933228800 -18000 1 CDT}
-    {1950764400 -21600 0 CST}
-    {1964678400 -18000 1 CDT}
-    {1982818800 -21600 0 CST}
-    {1996128000 -18000 1 CDT}
-    {2014268400 -21600 0 CST}
-    {2027577600 -18000 1 CDT}
-    {2045718000 -21600 0 CST}
-    {2059027200 -18000 1 CDT}
-    {2077167600 -21600 0 CST}
-    {2091081600 -18000 1 CDT}
-    {2108617200 -21600 0 CST}
-    {2122531200 -18000 1 CDT}
-    {2140066800 -21600 0 CST}
-    {2153980800 -18000 1 CDT}
-    {2172121200 -21600 0 CST}
-    {2185430400 -18000 1 CDT}
-    {2203570800 -21600 0 CST}
-    {2216880000 -18000 1 CDT}
-    {2235020400 -21600 0 CST}
-    {2248934400 -18000 1 CDT}
-    {2266470000 -21600 0 CST}
-    {2280384000 -18000 1 CDT}
-    {2297919600 -21600 0 CST}
-    {2311833600 -18000 1 CDT}
-    {2329369200 -21600 0 CST}
-    {2343283200 -18000 1 CDT}
-    {2361423600 -21600 0 CST}
-    {2374732800 -18000 1 CDT}
-    {2392873200 -21600 0 CST}
-    {2406182400 -18000 1 CDT}
-    {2424322800 -21600 0 CST}
-    {2438236800 -18000 1 CDT}
-    {2455772400 -21600 0 CST}
-    {2469686400 -18000 1 CDT}
-    {2487222000 -21600 0 CST}
-    {2501136000 -18000 1 CDT}
-    {2519276400 -21600 0 CST}
-    {2532585600 -18000 1 CDT}
-    {2550726000 -21600 0 CST}
-    {2564035200 -18000 1 CDT}
-    {2582175600 -21600 0 CST}
-    {2596089600 -18000 1 CDT}
-    {2613625200 -21600 0 CST}
-    {2627539200 -18000 1 CDT}
-    {2645074800 -21600 0 CST}
-    {2658988800 -18000 1 CDT}
-    {2676524400 -21600 0 CST}
-    {2690438400 -18000 1 CDT}
-    {2708578800 -21600 0 CST}
-    {2721888000 -18000 1 CDT}
-    {2740028400 -21600 0 CST}
-    {2753337600 -18000 1 CDT}
-    {2771478000 -21600 0 CST}
-    {2785392000 -18000 1 CDT}
-    {2802927600 -21600 0 CST}
-    {2816841600 -18000 1 CDT}
-    {2834377200 -21600 0 CST}
-    {2848291200 -18000 1 CDT}
-    {2866431600 -21600 0 CST}
-    {2879740800 -18000 1 CDT}
-    {2897881200 -21600 0 CST}
-    {2911190400 -18000 1 CDT}
-    {2929330800 -21600 0 CST}
-    {2942640000 -18000 1 CDT}
-    {2960780400 -21600 0 CST}
-    {2974694400 -18000 1 CDT}
-    {2992230000 -21600 0 CST}
-    {3006144000 -18000 1 CDT}
-    {3023679600 -21600 0 CST}
-    {3037593600 -18000 1 CDT}
-    {3055734000 -21600 0 CST}
-    {3069043200 -18000 1 CDT}
-    {3087183600 -21600 0 CST}
-    {3100492800 -18000 1 CDT}
-    {3118633200 -21600 0 CST}
-    {3132547200 -18000 1 CDT}
-    {3150082800 -21600 0 CST}
-    {3163996800 -18000 1 CDT}
-    {3181532400 -21600 0 CST}
-    {3195446400 -18000 1 CDT}
-    {3212982000 -21600 0 CST}
-    {3226896000 -18000 1 CDT}
-    {3245036400 -21600 0 CST}
-    {3258345600 -18000 1 CDT}
-    {3276486000 -21600 0 CST}
-    {3289795200 -18000 1 CDT}
-    {3307935600 -21600 0 CST}
-    {3321849600 -18000 1 CDT}
-    {3339385200 -21600 0 CST}
-    {3353299200 -18000 1 CDT}
-    {3370834800 -21600 0 CST}
-    {3384748800 -18000 1 CDT}
-    {3402889200 -21600 0 CST}
-    {3416198400 -18000 1 CDT}
-    {3434338800 -21600 0 CST}
-    {3447648000 -18000 1 CDT}
-    {3465788400 -21600 0 CST}
-    {3479702400 -18000 1 CDT}
-    {3497238000 -21600 0 CST}
-    {3511152000 -18000 1 CDT}
-    {3528687600 -21600 0 CST}
-    {3542601600 -18000 1 CDT}
-    {3560137200 -21600 0 CST}
-    {3574051200 -18000 1 CDT}
-    {3592191600 -21600 0 CST}
-    {3605500800 -18000 1 CDT}
-    {3623641200 -21600 0 CST}
-    {3636950400 -18000 1 CDT}
-    {3655090800 -21600 0 CST}
-    {3669004800 -18000 1 CDT}
-    {3686540400 -21600 0 CST}
-    {3700454400 -18000 1 CDT}
-    {3717990000 -21600 0 CST}
-    {3731904000 -18000 1 CDT}
-    {3750044400 -21600 0 CST}
-    {3763353600 -18000 1 CDT}
-    {3781494000 -21600 0 CST}
-    {3794803200 -18000 1 CDT}
-    {3812943600 -21600 0 CST}
-    {3826252800 -18000 1 CDT}
-    {3844393200 -21600 0 CST}
-    {3858307200 -18000 1 CDT}
-    {3875842800 -21600 0 CST}
-    {3889756800 -18000 1 CDT}
-    {3907292400 -21600 0 CST}
-    {3921206400 -18000 1 CDT}
-    {3939346800 -21600 0 CST}
-    {3952656000 -18000 1 CDT}
-    {3970796400 -21600 0 CST}
-    {3984105600 -18000 1 CDT}
-    {4002246000 -21600 0 CST}
-    {4016160000 -18000 1 CDT}
-    {4033695600 -21600 0 CST}
-    {4047609600 -18000 1 CDT}
-    {4065145200 -21600 0 CST}
-    {4079059200 -18000 1 CDT}
-    {4096594800 -21600 0 CST}
+    {1422777600 -18000 0 EST}
 }
diff --git a/library/tzdata/America/Cayman b/library/tzdata/America/Cayman
index ab5d12b..92ce5e2 100644
--- a/library/tzdata/America/Cayman
+++ b/library/tzdata/America/Cayman
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Cayman) {
-    {-9223372036854775808 -19532 0 LMT}
-    {-2524502068 -18432 0 KMT}
-    {-1827687168 -18000 0 EST}
+if {![info exists TZData(America/Panama)]} {
+    LoadTimeZoneFile America/Panama
 }
+set TZData(:America/Cayman) $TZData(:America/Panama)
diff --git a/library/tzdata/America/Costa_Rica b/library/tzdata/America/Costa_Rica
index 04420a4..8fc9343 100644
--- a/library/tzdata/America/Costa_Rica
+++ b/library/tzdata/America/Costa_Rica
@@ -1,9 +1,9 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:America/Costa_Rica) {
-    {-9223372036854775808 -20180 0 LMT}
-    {-2524501420 -20180 0 SJMT}
-    {-1545071020 -21600 0 CST}
+    {-9223372036854775808 -20173 0 LMT}
+    {-2524501427 -20173 0 SJMT}
+    {-1545071027 -21600 0 CST}
     {288770400 -18000 1 CDT}
     {297234000 -21600 0 CST}
     {320220000 -18000 1 CDT}
diff --git a/library/tzdata/America/Curacao b/library/tzdata/America/Curacao
index 443a319..5189e9c 100644
--- a/library/tzdata/America/Curacao
+++ b/library/tzdata/America/Curacao
@@ -1,7 +1,7 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:America/Curacao) {
-    {-9223372036854775808 -16544 0 LMT}
-    {-1826738656 -16200 0 ANT}
+    {-9223372036854775808 -16547 0 LMT}
+    {-1826738653 -16200 0 ANT}
     {-157750200 -14400 0 AST}
 }
diff --git a/library/tzdata/America/Dominica b/library/tzdata/America/Dominica
index 3503a65..b97cb0e 100644
--- a/library/tzdata/America/Dominica
+++ b/library/tzdata/America/Dominica
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Dominica) {
-    {-9223372036854775808 -14736 0 LMT}
-    {-1846266804 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Dominica) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/Eirunepe b/library/tzdata/America/Eirunepe
index 86dcd8f..a05631f 100644
--- a/library/tzdata/America/Eirunepe
+++ b/library/tzdata/America/Eirunepe
@@ -37,4 +37,5 @@ set TZData(:America/Eirunepe) {
     {761716800 -18000 0 ACT}
     {780206400 -18000 0 ACT}
     {1214283600 -14400 0 AMT}
+    {1384056000 -18000 0 ACT}
 }
diff --git a/library/tzdata/America/Grand_Turk b/library/tzdata/America/Grand_Turk
index a455dd5..0edcf0b 100644
--- a/library/tzdata/America/Grand_Turk
+++ b/library/tzdata/America/Grand_Turk
@@ -2,8 +2,9 @@
 
 set TZData(:America/Grand_Turk) {
     {-9223372036854775808 -17072 0 LMT}
-    {-2524504528 -18432 0 KMT}
-    {-1827687168 -18000 0 EST}
+    {-2524504528 -18431 0 KMT}
+    {-1827687169 -18000 0 EST}
+    {284014800 -18000 0 EST}
     {294217200 -14400 1 EDT}
     {309938400 -18000 0 EST}
     {325666800 -14400 1 EDT}
@@ -77,173 +78,5 @@ set TZData(:America/Grand_Turk) {
     {1394348400 -14400 1 EDT}
     {1414908000 -18000 0 EST}
     {1425798000 -14400 1 EDT}
-    {1446357600 -18000 0 EST}
-    {1457852400 -14400 1 EDT}
-    {1478412000 -18000 0 EST}
-    {1489302000 -14400 1 EDT}
-    {1509861600 -18000 0 EST}
-    {1520751600 -14400 1 EDT}
-    {1541311200 -18000 0 EST}
-    {1552201200 -14400 1 EDT}
-    {1572760800 -18000 0 EST}
-    {1583650800 -14400 1 EDT}
-    {1604210400 -18000 0 EST}
-    {1615705200 -14400 1 EDT}
-    {1636264800 -18000 0 EST}
-    {1647154800 -14400 1 EDT}
-    {1667714400 -18000 0 EST}
-    {1678604400 -14400 1 EDT}
-    {1699164000 -18000 0 EST}
-    {1710054000 -14400 1 EDT}
-    {1730613600 -18000 0 EST}
-    {1741503600 -14400 1 EDT}
-    {1762063200 -18000 0 EST}
-    {1772953200 -14400 1 EDT}
-    {1793512800 -18000 0 EST}
-    {1805007600 -14400 1 EDT}
-    {1825567200 -18000 0 EST}
-    {1836457200 -14400 1 EDT}
-    {1857016800 -18000 0 EST}
-    {1867906800 -14400 1 EDT}
-    {1888466400 -18000 0 EST}
-    {1899356400 -14400 1 EDT}
-    {1919916000 -18000 0 EST}
-    {1930806000 -14400 1 EDT}
-    {1951365600 -18000 0 EST}
-    {1962860400 -14400 1 EDT}
-    {1983420000 -18000 0 EST}
-    {1994310000 -14400 1 EDT}
-    {2014869600 -18000 0 EST}
-    {2025759600 -14400 1 EDT}
-    {2046319200 -18000 0 EST}
-    {2057209200 -14400 1 EDT}
-    {2077768800 -18000 0 EST}
-    {2088658800 -14400 1 EDT}
-    {2109218400 -18000 0 EST}
-    {2120108400 -14400 1 EDT}
-    {2140668000 -18000 0 EST}
-    {2152162800 -14400 1 EDT}
-    {2172722400 -18000 0 EST}
-    {2183612400 -14400 1 EDT}
-    {2204172000 -18000 0 EST}
-    {2215062000 -14400 1 EDT}
-    {2235621600 -18000 0 EST}
-    {2246511600 -14400 1 EDT}
-    {2267071200 -18000 0 EST}
-    {2277961200 -14400 1 EDT}
-    {2298520800 -18000 0 EST}
-    {2309410800 -14400 1 EDT}
-    {2329970400 -18000 0 EST}
-    {2341465200 -14400 1 EDT}
-    {2362024800 -18000 0 EST}
-    {2372914800 -14400 1 EDT}
-    {2393474400 -18000 0 EST}
-    {2404364400 -14400 1 EDT}
-    {2424924000 -18000 0 EST}
-    {2435814000 -14400 1 EDT}
-    {2456373600 -18000 0 EST}
-    {2467263600 -14400 1 EDT}
-    {2487823200 -18000 0 EST}
-    {2499318000 -14400 1 EDT}
-    {2519877600 -18000 0 EST}
-    {2530767600 -14400 1 EDT}
-    {2551327200 -18000 0 EST}
-    {2562217200 -14400 1 EDT}
-    {2582776800 -18000 0 EST}
-    {2593666800 -14400 1 EDT}
-    {2614226400 -18000 0 EST}
-    {2625116400 -14400 1 EDT}
-    {2645676000 -18000 0 EST}
-    {2656566000 -14400 1 EDT}
-    {2677125600 -18000 0 EST}
-    {2688620400 -14400 1 EDT}
-    {2709180000 -18000 0 EST}
-    {2720070000 -14400 1 EDT}
-    {2740629600 -18000 0 EST}
-    {2751519600 -14400 1 EDT}
-    {2772079200 -18000 0 EST}
-    {2782969200 -14400 1 EDT}
-    {2803528800 -18000 0 EST}
-    {2814418800 -14400 1 EDT}
-    {2834978400 -18000 0 EST}
-    {2846473200 -14400 1 EDT}
-    {2867032800 -18000 0 EST}
-    {2877922800 -14400 1 EDT}
-    {2898482400 -18000 0 EST}
-    {2909372400 -14400 1 EDT}
-    {2929932000 -18000 0 EST}
-    {2940822000 -14400 1 EDT}
-    {2961381600 -18000 0 EST}
-    {2972271600 -14400 1 EDT}
-    {2992831200 -18000 0 EST}
-    {3003721200 -14400 1 EDT}
-    {3024280800 -18000 0 EST}
-    {3035775600 -14400 1 EDT}
-    {3056335200 -18000 0 EST}
-    {3067225200 -14400 1 EDT}
-    {3087784800 -18000 0 EST}
-    {3098674800 -14400 1 EDT}
-    {3119234400 -18000 0 EST}
-    {3130124400 -14400 1 EDT}
-    {3150684000 -18000 0 EST}
-    {3161574000 -14400 1 EDT}
-    {3182133600 -18000 0 EST}
-    {3193023600 -14400 1 EDT}
-    {3213583200 -18000 0 EST}
-    {3225078000 -14400 1 EDT}
-    {3245637600 -18000 0 EST}
-    {3256527600 -14400 1 EDT}
-    {3277087200 -18000 0 EST}
-    {3287977200 -14400 1 EDT}
-    {3308536800 -18000 0 EST}
-    {3319426800 -14400 1 EDT}
-    {3339986400 -18000 0 EST}
-    {3350876400 -14400 1 EDT}
-    {3371436000 -18000 0 EST}
-    {3382930800 -14400 1 EDT}
-    {3403490400 -18000 0 EST}
-    {3414380400 -14400 1 EDT}
-    {3434940000 -18000 0 EST}
-    {3445830000 -14400 1 EDT}
-    {3466389600 -18000 0 EST}
-    {3477279600 -14400 1 EDT}
-    {3497839200 -18000 0 EST}
-    {3508729200 -14400 1 EDT}
-    {3529288800 -18000 0 EST}
-    {3540178800 -14400 1 EDT}
-    {3560738400 -18000 0 EST}
-    {3572233200 -14400 1 EDT}
-    {3592792800 -18000 0 EST}
-    {3603682800 -14400 1 EDT}
-    {3624242400 -18000 0 EST}
-    {3635132400 -14400 1 EDT}
-    {3655692000 -18000 0 EST}
-    {3666582000 -14400 1 EDT}
-    {3687141600 -18000 0 EST}
-    {3698031600 -14400 1 EDT}
-    {3718591200 -18000 0 EST}
-    {3730086000 -14400 1 EDT}
-    {3750645600 -18000 0 EST}
-    {3761535600 -14400 1 EDT}
-    {3782095200 -18000 0 EST}
-    {3792985200 -14400 1 EDT}
-    {3813544800 -18000 0 EST}
-    {3824434800 -14400 1 EDT}
-    {3844994400 -18000 0 EST}
-    {3855884400 -14400 1 EDT}
-    {3876444000 -18000 0 EST}
-    {3887334000 -14400 1 EDT}
-    {3907893600 -18000 0 EST}
-    {3919388400 -14400 1 EDT}
-    {3939948000 -18000 0 EST}
-    {3950838000 -14400 1 EDT}
-    {3971397600 -18000 0 EST}
-    {3982287600 -14400 1 EDT}
-    {4002847200 -18000 0 EST}
-    {4013737200 -14400 1 EDT}
-    {4034296800 -18000 0 EST}
-    {4045186800 -14400 1 EDT}
-    {4065746400 -18000 0 EST}
-    {4076636400 -14400 1 EDT}
-    {4097196000 -18000 0 EST}
+    {1446361200 -14400 0 AST}
 }
diff --git a/library/tzdata/America/Grenada b/library/tzdata/America/Grenada
index 3c2919b..92300c3 100644
--- a/library/tzdata/America/Grenada
+++ b/library/tzdata/America/Grenada
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Grenada) {
-    {-9223372036854775808 -14820 0 LMT}
-    {-1846266780 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Grenada) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/Guadeloupe b/library/tzdata/America/Guadeloupe
index b1987ce..aba6bd7 100644
--- a/library/tzdata/America/Guadeloupe
+++ b/library/tzdata/America/Guadeloupe
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Guadeloupe) {
-    {-9223372036854775808 -14768 0 LMT}
-    {-1848254032 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Guadeloupe) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/Havana b/library/tzdata/America/Havana
index 3f29a35..5901dae 100644
--- a/library/tzdata/America/Havana
+++ b/library/tzdata/America/Havana
@@ -94,7 +94,7 @@ set TZData(:America/Havana) {
     {1035694800 -18000 0 CST}
     {1049605200 -14400 1 CDT}
     {1067144400 -18000 0 CST}
-    {1081054800 -14400 1 CDT}
+    {1080450000 -14400 1 CDT}
     {1162098000 -18000 0 CST}
     {1173589200 -14400 1 CDT}
     {1193547600 -18000 0 CST}
@@ -107,179 +107,179 @@ set TZData(:America/Havana) {
     {1300597200 -14400 1 CDT}
     {1321160400 -18000 0 CST}
     {1333256400 -14400 1 CDT}
-    {1351400400 -18000 0 CST}
+    {1352005200 -18000 0 CST}
     {1362891600 -14400 1 CDT}
-    {1382850000 -18000 0 CST}
+    {1383454800 -18000 0 CST}
     {1394341200 -14400 1 CDT}
-    {1414299600 -18000 0 CST}
+    {1414904400 -18000 0 CST}
     {1425790800 -14400 1 CDT}
-    {1445749200 -18000 0 CST}
+    {1446354000 -18000 0 CST}
     {1457845200 -14400 1 CDT}
-    {1477803600 -18000 0 CST}
+    {1478408400 -18000 0 CST}
     {1489294800 -14400 1 CDT}
-    {1509253200 -18000 0 CST}
+    {1509858000 -18000 0 CST}
     {1520744400 -14400 1 CDT}
-    {1540702800 -18000 0 CST}
+    {1541307600 -18000 0 CST}
     {1552194000 -14400 1 CDT}
-    {1572152400 -18000 0 CST}
+    {1572757200 -18000 0 CST}
     {1583643600 -14400 1 CDT}
-    {1603602000 -18000 0 CST}
+    {1604206800 -18000 0 CST}
     {1615698000 -14400 1 CDT}
-    {1635656400 -18000 0 CST}
+    {1636261200 -18000 0 CST}
     {1647147600 -14400 1 CDT}
-    {1667106000 -18000 0 CST}
+    {1667710800 -18000 0 CST}
     {1678597200 -14400 1 CDT}
-    {1698555600 -18000 0 CST}
+    {1699160400 -18000 0 CST}
     {1710046800 -14400 1 CDT}
-    {1730005200 -18000 0 CST}
+    {1730610000 -18000 0 CST}
     {1741496400 -14400 1 CDT}
-    {1761454800 -18000 0 CST}
+    {1762059600 -18000 0 CST}
     {1772946000 -14400 1 CDT}
-    {1792904400 -18000 0 CST}
+    {1793509200 -18000 0 CST}
     {1805000400 -14400 1 CDT}
-    {1824958800 -18000 0 CST}
+    {1825563600 -18000 0 CST}
     {1836450000 -14400 1 CDT}
-    {1856408400 -18000 0 CST}
+    {1857013200 -18000 0 CST}
     {1867899600 -14400 1 CDT}
-    {1887858000 -18000 0 CST}
+    {1888462800 -18000 0 CST}
     {1899349200 -14400 1 CDT}
-    {1919307600 -18000 0 CST}
+    {1919912400 -18000 0 CST}
     {1930798800 -14400 1 CDT}
-    {1950757200 -18000 0 CST}
+    {1951362000 -18000 0 CST}
     {1962853200 -14400 1 CDT}
-    {1982811600 -18000 0 CST}
+    {1983416400 -18000 0 CST}
     {1994302800 -14400 1 CDT}
-    {2014261200 -18000 0 CST}
+    {2014866000 -18000 0 CST}
     {2025752400 -14400 1 CDT}
-    {2045710800 -18000 0 CST}
+    {2046315600 -18000 0 CST}
     {2057202000 -14400 1 CDT}
-    {2077160400 -18000 0 CST}
+    {2077765200 -18000 0 CST}
     {2088651600 -14400 1 CDT}
-    {2108610000 -18000 0 CST}
+    {2109214800 -18000 0 CST}
     {2120101200 -14400 1 CDT}
-    {2140059600 -18000 0 CST}
+    {2140664400 -18000 0 CST}
     {2152155600 -14400 1 CDT}
-    {2172114000 -18000 0 CST}
+    {2172718800 -18000 0 CST}
     {2183605200 -14400 1 CDT}
-    {2203563600 -18000 0 CST}
+    {2204168400 -18000 0 CST}
     {2215054800 -14400 1 CDT}
-    {2235013200 -18000 0 CST}
+    {2235618000 -18000 0 CST}
     {2246504400 -14400 1 CDT}
-    {2266462800 -18000 0 CST}
+    {2267067600 -18000 0 CST}
     {2277954000 -14400 1 CDT}
-    {2297912400 -18000 0 CST}
+    {2298517200 -18000 0 CST}
     {2309403600 -14400 1 CDT}
-    {2329362000 -18000 0 CST}
+    {2329966800 -18000 0 CST}
     {2341458000 -14400 1 CDT}
-    {2361416400 -18000 0 CST}
+    {2362021200 -18000 0 CST}
     {2372907600 -14400 1 CDT}
-    {2392866000 -18000 0 CST}
+    {2393470800 -18000 0 CST}
     {2404357200 -14400 1 CDT}
-    {2424315600 -18000 0 CST}
+    {2424920400 -18000 0 CST}
     {2435806800 -14400 1 CDT}
-    {2455765200 -18000 0 CST}
+    {2456370000 -18000 0 CST}
     {2467256400 -14400 1 CDT}
-    {2487214800 -18000 0 CST}
+    {2487819600 -18000 0 CST}
     {2499310800 -14400 1 CDT}
-    {2519269200 -18000 0 CST}
+    {2519874000 -18000 0 CST}
     {2530760400 -14400 1 CDT}
-    {2550718800 -18000 0 CST}
+    {2551323600 -18000 0 CST}
     {2562210000 -14400 1 CDT}
-    {2582168400 -18000 0 CST}
+    {2582773200 -18000 0 CST}
     {2593659600 -14400 1 CDT}
-    {2613618000 -18000 0 CST}
+    {2614222800 -18000 0 CST}
     {2625109200 -14400 1 CDT}
-    {2645067600 -18000 0 CST}
+    {2645672400 -18000 0 CST}
     {2656558800 -14400 1 CDT}
-    {2676517200 -18000 0 CST}
+    {2677122000 -18000 0 CST}
     {2688613200 -14400 1 CDT}
-    {2708571600 -18000 0 CST}
+    {2709176400 -18000 0 CST}
     {2720062800 -14400 1 CDT}
-    {2740021200 -18000 0 CST}
+    {2740626000 -18000 0 CST}
     {2751512400 -14400 1 CDT}
-    {2771470800 -18000 0 CST}
+    {2772075600 -18000 0 CST}
     {2782962000 -14400 1 CDT}
-    {2802920400 -18000 0 CST}
+    {2803525200 -18000 0 CST}
     {2814411600 -14400 1 CDT}
-    {2834370000 -18000 0 CST}
+    {2834974800 -18000 0 CST}
     {2846466000 -14400 1 CDT}
-    {2866424400 -18000 0 CST}
+    {2867029200 -18000 0 CST}
     {2877915600 -14400 1 CDT}
-    {2897874000 -18000 0 CST}
+    {2898478800 -18000 0 CST}
     {2909365200 -14400 1 CDT}
-    {2929323600 -18000 0 CST}
+    {2929928400 -18000 0 CST}
     {2940814800 -14400 1 CDT}
-    {2960773200 -18000 0 CST}
+    {2961378000 -18000 0 CST}
     {2972264400 -14400 1 CDT}
-    {2992222800 -18000 0 CST}
+    {2992827600 -18000 0 CST}
     {3003714000 -14400 1 CDT}
-    {3023672400 -18000 0 CST}
+    {3024277200 -18000 0 CST}
     {3035768400 -14400 1 CDT}
-    {3055726800 -18000 0 CST}
+    {3056331600 -18000 0 CST}
     {3067218000 -14400 1 CDT}
-    {3087176400 -18000 0 CST}
+    {3087781200 -18000 0 CST}
     {3098667600 -14400 1 CDT}
-    {3118626000 -18000 0 CST}
+    {3119230800 -18000 0 CST}
     {3130117200 -14400 1 CDT}
-    {3150075600 -18000 0 CST}
+    {3150680400 -18000 0 CST}
     {3161566800 -14400 1 CDT}
-    {3181525200 -18000 0 CST}
+    {3182130000 -18000 0 CST}
     {3193016400 -14400 1 CDT}
-    {3212974800 -18000 0 CST}
+    {3213579600 -18000 0 CST}
     {3225070800 -14400 1 CDT}
-    {3245029200 -18000 0 CST}
+    {3245634000 -18000 0 CST}
     {3256520400 -14400 1 CDT}
-    {3276478800 -18000 0 CST}
+    {3277083600 -18000 0 CST}
     {3287970000 -14400 1 CDT}
-    {3307928400 -18000 0 CST}
+    {3308533200 -18000 0 CST}
     {3319419600 -14400 1 CDT}
-    {3339378000 -18000 0 CST}
+    {3339982800 -18000 0 CST}
     {3350869200 -14400 1 CDT}
-    {3370827600 -18000 0 CST}
+    {3371432400 -18000 0 CST}
     {3382923600 -14400 1 CDT}
-    {3402882000 -18000 0 CST}
+    {3403486800 -18000 0 CST}
     {3414373200 -14400 1 CDT}
-    {3434331600 -18000 0 CST}
+    {3434936400 -18000 0 CST}
     {3445822800 -14400 1 CDT}
-    {3465781200 -18000 0 CST}
+    {3466386000 -18000 0 CST}
     {3477272400 -14400 1 CDT}
-    {3497230800 -18000 0 CST}
+    {3497835600 -18000 0 CST}
     {3508722000 -14400 1 CDT}
-    {3528680400 -18000 0 CST}
+    {3529285200 -18000 0 CST}
     {3540171600 -14400 1 CDT}
-    {3560130000 -18000 0 CST}
+    {3560734800 -18000 0 CST}
     {3572226000 -14400 1 CDT}
-    {3592184400 -18000 0 CST}
+    {3592789200 -18000 0 CST}
     {3603675600 -14400 1 CDT}
-    {3623634000 -18000 0 CST}
+    {3624238800 -18000 0 CST}
     {3635125200 -14400 1 CDT}
-    {3655083600 -18000 0 CST}
+    {3655688400 -18000 0 CST}
     {3666574800 -14400 1 CDT}
-    {3686533200 -18000 0 CST}
+    {3687138000 -18000 0 CST}
     {3698024400 -14400 1 CDT}
-    {3717982800 -18000 0 CST}
+    {3718587600 -18000 0 CST}
     {3730078800 -14400 1 CDT}
-    {3750037200 -18000 0 CST}
+    {3750642000 -18000 0 CST}
     {3761528400 -14400 1 CDT}
-    {3781486800 -18000 0 CST}
+    {3782091600 -18000 0 CST}
     {3792978000 -14400 1 CDT}
-    {3812936400 -18000 0 CST}
+    {3813541200 -18000 0 CST}
     {3824427600 -14400 1 CDT}
-    {3844386000 -18000 0 CST}
+    {3844990800 -18000 0 CST}
     {3855877200 -14400 1 CDT}
-    {3875835600 -18000 0 CST}
+    {3876440400 -18000 0 CST}
     {3887326800 -14400 1 CDT}
-    {3907285200 -18000 0 CST}
+    {3907890000 -18000 0 CST}
     {3919381200 -14400 1 CDT}
-    {3939339600 -18000 0 CST}
+    {3939944400 -18000 0 CST}
     {3950830800 -14400 1 CDT}
-    {3970789200 -18000 0 CST}
+    {3971394000 -18000 0 CST}
     {3982280400 -14400 1 CDT}
-    {4002238800 -18000 0 CST}
+    {4002843600 -18000 0 CST}
     {4013730000 -14400 1 CDT}
-    {4033688400 -18000 0 CST}
+    {4034293200 -18000 0 CST}
     {4045179600 -14400 1 CDT}
-    {4065138000 -18000 0 CST}
+    {4065742800 -18000 0 CST}
     {4076629200 -14400 1 CDT}
-    {4096587600 -18000 0 CST}
+    {4097192400 -18000 0 CST}
 }
diff --git a/library/tzdata/America/Jamaica b/library/tzdata/America/Jamaica
index 393d90a8..f752842 100644
--- a/library/tzdata/America/Jamaica
+++ b/library/tzdata/America/Jamaica
@@ -1,10 +1,11 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:America/Jamaica) {
-    {-9223372036854775808 -18432 0 LMT}
-    {-2524503168 -18432 0 KMT}
-    {-1827687168 -18000 0 EST}
-    {136364400 -14400 0 EDT}
+    {-9223372036854775808 -18431 0 LMT}
+    {-2524503169 -18431 0 KMT}
+    {-1827687169 -18000 0 EST}
+    {126248400 -18000 0 EST}
+    {126687600 -14400 1 EDT}
     {152085600 -18000 0 EST}
     {162370800 -14400 1 EDT}
     {183535200 -18000 0 EST}
diff --git a/library/tzdata/America/Marigot b/library/tzdata/America/Marigot
index 9f3f8f6..c2b3873 100644
--- a/library/tzdata/America/Marigot
+++ b/library/tzdata/America/Marigot
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(America/Guadeloupe)]} {
-    LoadTimeZoneFile America/Guadeloupe
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
-set TZData(:America/Marigot) $TZData(:America/Guadeloupe)
+set TZData(:America/Marigot) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/Metlakatla b/library/tzdata/America/Metlakatla
index e8af1c0..8ea80fa 100644
--- a/library/tzdata/America/Metlakatla
+++ b/library/tzdata/America/Metlakatla
@@ -39,5 +39,5 @@ set TZData(:America/Metlakatla) {
     {388576800 -25200 1 PDT}
     {404902800 -28800 0 PST}
     {420026400 -25200 1 PDT}
-    {436356000 -28800 0 MeST}
+    {436356000 -28800 0 PST}
 }
diff --git a/library/tzdata/America/Montreal b/library/tzdata/America/Montreal
index bebe7dc..0ead8ee 100644
--- a/library/tzdata/America/Montreal
+++ b/library/tzdata/America/Montreal
@@ -1,366 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Montreal) {
-    {-9223372036854775808 -17656 0 LMT}
-    {-2713892744 -18000 0 EST}
-    {-1665334800 -14400 1 EDT}
-    {-1662753600 -18000 0 EST}
-    {-1640977200 -18000 0 EST}
-    {-1632070800 -14400 1 EDT}
-    {-1615140000 -18000 0 EST}
-    {-1609441200 -18000 0 EST}
-    {-1601742600 -14400 1 EDT}
-    {-1583775000 -18000 0 EST}
-    {-1567355400 -14400 1 EDT}
-    {-1554053400 -18000 0 EST}
-    {-1535907600 -14400 1 EDT}
-    {-1522603800 -18000 0 EST}
-    {-1504458000 -14400 1 EDT}
-    {-1491154200 -18000 0 EST}
-    {-1439830800 -14400 1 EDT}
-    {-1428255000 -18000 0 EST}
-    {-1409504400 -14400 1 EDT}
-    {-1396805400 -18000 0 EST}
-    {-1378054800 -14400 1 EDT}
-    {-1365355800 -18000 0 EST}
-    {-1346612400 -14400 1 EDT}
-    {-1333915200 -18000 0 EST}
-    {-1315162800 -14400 1 EDT}
-    {-1301860800 -18000 0 EST}
-    {-1283713200 -14400 1 EDT}
-    {-1270411200 -18000 0 EST}
-    {-1252263600 -14400 1 EDT}
-    {-1238961600 -18000 0 EST}
-    {-1220814000 -14400 1 EDT}
-    {-1207512000 -18000 0 EST}
-    {-1188759600 -14400 1 EDT}
-    {-1176062400 -18000 0 EST}
-    {-1157310000 -14400 1 EDT}
-    {-1144008000 -18000 0 EST}
-    {-1125860400 -14400 1 EDT}
-    {-1112558400 -18000 0 EST}
-    {-1094410800 -14400 1 EDT}
-    {-1081108800 -18000 0 EST}
-    {-1062961200 -14400 1 EDT}
-    {-1049659200 -18000 0 EST}
-    {-1031511600 -14400 1 EDT}
-    {-1018209600 -18000 0 EST}
-    {-1000062000 -14400 1 EDT}
-    {-986760000 -18000 0 EST}
-    {-968007600 -14400 1 EDT}
-    {-955310400 -18000 0 EST}
-    {-936558000 -14400 1 EDT}
-    {-880218000 -14400 0 EWT}
-    {-769395600 -14400 1 EPT}
-    {-765396000 -18000 0 EST}
-    {-757364400 -18000 0 EST}
-    {-747248400 -14400 1 EDT}
-    {-733946400 -18000 0 EST}
-    {-715798800 -14400 1 EDT}
-    {-702496800 -18000 0 EST}
-    {-684349200 -14400 1 EDT}
-    {-671047200 -18000 0 EST}
-    {-652899600 -14400 1 EDT}
-    {-636573600 -18000 0 EST}
-    {-620845200 -14400 1 EDT}
-    {-605124000 -18000 0 EST}
-    {-589395600 -14400 1 EDT}
-    {-576093600 -18000 0 EST}
-    {-557946000 -14400 1 EDT}
-    {-544644000 -18000 0 EST}
-    {-526496400 -14400 1 EDT}
-    {-513194400 -18000 0 EST}
-    {-495046800 -14400 1 EDT}
-    {-481744800 -18000 0 EST}
-    {-463597200 -14400 1 EDT}
-    {-450295200 -18000 0 EST}
-    {-431542800 -14400 1 EDT}
-    {-418240800 -18000 0 EST}
-    {-400093200 -14400 1 EDT}
-    {-384372000 -18000 0 EST}
-    {-368643600 -14400 1 EDT}
-    {-352922400 -18000 0 EST}
-    {-337194000 -14400 1 EDT}
-    {-321472800 -18000 0 EST}
-    {-305744400 -14400 1 EDT}
-    {-289418400 -18000 0 EST}
-    {-273690000 -14400 1 EDT}
-    {-257968800 -18000 0 EST}
-    {-242240400 -14400 1 EDT}
-    {-226519200 -18000 0 EST}
-    {-210790800 -14400 1 EDT}
-    {-195069600 -18000 0 EST}
-    {-179341200 -14400 1 EDT}
-    {-163620000 -18000 0 EST}
-    {-147891600 -14400 1 EDT}
-    {-131565600 -18000 0 EST}
-    {-116442000 -14400 1 EDT}
-    {-100116000 -18000 0 EST}
-    {-84387600 -14400 1 EDT}
-    {-68666400 -18000 0 EST}
-    {-52938000 -14400 1 EDT}
-    {-37216800 -18000 0 EST}
-    {-21488400 -14400 1 EDT}
-    {-5767200 -18000 0 EST}
-    {9961200 -14400 1 EDT}
-    {25682400 -18000 0 EST}
-    {41410800 -14400 1 EDT}
-    {57736800 -18000 0 EST}
-    {73465200 -14400 1 EDT}
-    {89186400 -18000 0 EST}
-    {104914800 -14400 1 EDT}
-    {120636000 -18000 0 EST}
-    {126248400 -18000 0 EST}
-    {136364400 -14400 1 EDT}
-    {152085600 -18000 0 EST}
-    {167814000 -14400 1 EDT}
-    {183535200 -18000 0 EST}
-    {199263600 -14400 1 EDT}
-    {215589600 -18000 0 EST}
-    {230713200 -14400 1 EDT}
-    {247039200 -18000 0 EST}
-    {262767600 -14400 1 EDT}
-    {278488800 -18000 0 EST}
-    {294217200 -14400 1 EDT}
-    {309938400 -18000 0 EST}
-    {325666800 -14400 1 EDT}
-    {341388000 -18000 0 EST}
-    {357116400 -14400 1 EDT}
-    {372837600 -18000 0 EST}
-    {388566000 -14400 1 EDT}
-    {404892000 -18000 0 EST}
-    {420015600 -14400 1 EDT}
-    {436341600 -18000 0 EST}
-    {452070000 -14400 1 EDT}
-    {467791200 -18000 0 EST}
-    {483519600 -14400 1 EDT}
-    {499240800 -18000 0 EST}
-    {514969200 -14400 1 EDT}
-    {530690400 -18000 0 EST}
-    {544604400 -14400 1 EDT}
-    {562140000 -18000 0 EST}
-    {576054000 -14400 1 EDT}
-    {594194400 -18000 0 EST}
-    {607503600 -14400 1 EDT}
-    {625644000 -18000 0 EST}
-    {638953200 -14400 1 EDT}
-    {657093600 -18000 0 EST}
-    {671007600 -14400 1 EDT}
-    {688543200 -18000 0 EST}
-    {702457200 -14400 1 EDT}
-    {719992800 -18000 0 EST}
-    {733906800 -14400 1 EDT}
-    {752047200 -18000 0 EST}
-    {765356400 -14400 1 EDT}
-    {783496800 -18000 0 EST}
-    {796806000 -14400 1 EDT}
-    {814946400 -18000 0 EST}
-    {828860400 -14400 1 EDT}
-    {846396000 -18000 0 EST}
-    {860310000 -14400 1 EDT}
-    {877845600 -18000 0 EST}
-    {891759600 -14400 1 EDT}
-    {909295200 -18000 0 EST}
-    {923209200 -14400 1 EDT}
-    {941349600 -18000 0 EST}
-    {954658800 -14400 1 EDT}
-    {972799200 -18000 0 EST}
-    {986108400 -14400 1 EDT}
-    {1004248800 -18000 0 EST}
-    {1018162800 -14400 1 EDT}
-    {1035698400 -18000 0 EST}
-    {1049612400 -14400 1 EDT}
-    {1067148000 -18000 0 EST}
-    {1081062000 -14400 1 EDT}
-    {1099202400 -18000 0 EST}
-    {1112511600 -14400 1 EDT}
-    {1130652000 -18000 0 EST}
-    {1143961200 -14400 1 EDT}
-    {1162101600 -18000 0 EST}
-    {1173596400 -14400 1 EDT}
-    {1194156000 -18000 0 EST}
-    {1205046000 -14400 1 EDT}
-    {1225605600 -18000 0 EST}
-    {1236495600 -14400 1 EDT}
-    {1257055200 -18000 0 EST}
-    {1268550000 -14400 1 EDT}
-    {1289109600 -18000 0 EST}
-    {1299999600 -14400 1 EDT}
-    {1320559200 -18000 0 EST}
-    {1331449200 -14400 1 EDT}
-    {1352008800 -18000 0 EST}
-    {1362898800 -14400 1 EDT}
-    {1383458400 -18000 0 EST}
-    {1394348400 -14400 1 EDT}
-    {1414908000 -18000 0 EST}
-    {1425798000 -14400 1 EDT}
-    {1446357600 -18000 0 EST}
-    {1457852400 -14400 1 EDT}
-    {1478412000 -18000 0 EST}
-    {1489302000 -14400 1 EDT}
-    {1509861600 -18000 0 EST}
-    {1520751600 -14400 1 EDT}
-    {1541311200 -18000 0 EST}
-    {1552201200 -14400 1 EDT}
-    {1572760800 -18000 0 EST}
-    {1583650800 -14400 1 EDT}
-    {1604210400 -18000 0 EST}
-    {1615705200 -14400 1 EDT}
-    {1636264800 -18000 0 EST}
-    {1647154800 -14400 1 EDT}
-    {1667714400 -18000 0 EST}
-    {1678604400 -14400 1 EDT}
-    {1699164000 -18000 0 EST}
-    {1710054000 -14400 1 EDT}
-    {1730613600 -18000 0 EST}
-    {1741503600 -14400 1 EDT}
-    {1762063200 -18000 0 EST}
-    {1772953200 -14400 1 EDT}
-    {1793512800 -18000 0 EST}
-    {1805007600 -14400 1 EDT}
-    {1825567200 -18000 0 EST}
-    {1836457200 -14400 1 EDT}
-    {1857016800 -18000 0 EST}
-    {1867906800 -14400 1 EDT}
-    {1888466400 -18000 0 EST}
-    {1899356400 -14400 1 EDT}
-    {1919916000 -18000 0 EST}
-    {1930806000 -14400 1 EDT}
-    {1951365600 -18000 0 EST}
-    {1962860400 -14400 1 EDT}
-    {1983420000 -18000 0 EST}
-    {1994310000 -14400 1 EDT}
-    {2014869600 -18000 0 EST}
-    {2025759600 -14400 1 EDT}
-    {2046319200 -18000 0 EST}
-    {2057209200 -14400 1 EDT}
-    {2077768800 -18000 0 EST}
-    {2088658800 -14400 1 EDT}
-    {2109218400 -18000 0 EST}
-    {2120108400 -14400 1 EDT}
-    {2140668000 -18000 0 EST}
-    {2152162800 -14400 1 EDT}
-    {2172722400 -18000 0 EST}
-    {2183612400 -14400 1 EDT}
-    {2204172000 -18000 0 EST}
-    {2215062000 -14400 1 EDT}
-    {2235621600 -18000 0 EST}
-    {2246511600 -14400 1 EDT}
-    {2267071200 -18000 0 EST}
-    {2277961200 -14400 1 EDT}
-    {2298520800 -18000 0 EST}
-    {2309410800 -14400 1 EDT}
-    {2329970400 -18000 0 EST}
-    {2341465200 -14400 1 EDT}
-    {2362024800 -18000 0 EST}
-    {2372914800 -14400 1 EDT}
-    {2393474400 -18000 0 EST}
-    {2404364400 -14400 1 EDT}
-    {2424924000 -18000 0 EST}
-    {2435814000 -14400 1 EDT}
-    {2456373600 -18000 0 EST}
-    {2467263600 -14400 1 EDT}
-    {2487823200 -18000 0 EST}
-    {2499318000 -14400 1 EDT}
-    {2519877600 -18000 0 EST}
-    {2530767600 -14400 1 EDT}
-    {2551327200 -18000 0 EST}
-    {2562217200 -14400 1 EDT}
-    {2582776800 -18000 0 EST}
-    {2593666800 -14400 1 EDT}
-    {2614226400 -18000 0 EST}
-    {2625116400 -14400 1 EDT}
-    {2645676000 -18000 0 EST}
-    {2656566000 -14400 1 EDT}
-    {2677125600 -18000 0 EST}
-    {2688620400 -14400 1 EDT}
-    {2709180000 -18000 0 EST}
-    {2720070000 -14400 1 EDT}
-    {2740629600 -18000 0 EST}
-    {2751519600 -14400 1 EDT}
-    {2772079200 -18000 0 EST}
-    {2782969200 -14400 1 EDT}
-    {2803528800 -18000 0 EST}
-    {2814418800 -14400 1 EDT}
-    {2834978400 -18000 0 EST}
-    {2846473200 -14400 1 EDT}
-    {2867032800 -18000 0 EST}
-    {2877922800 -14400 1 EDT}
-    {2898482400 -18000 0 EST}
-    {2909372400 -14400 1 EDT}
-    {2929932000 -18000 0 EST}
-    {2940822000 -14400 1 EDT}
-    {2961381600 -18000 0 EST}
-    {2972271600 -14400 1 EDT}
-    {2992831200 -18000 0 EST}
-    {3003721200 -14400 1 EDT}
-    {3024280800 -18000 0 EST}
-    {3035775600 -14400 1 EDT}
-    {3056335200 -18000 0 EST}
-    {3067225200 -14400 1 EDT}
-    {3087784800 -18000 0 EST}
-    {3098674800 -14400 1 EDT}
-    {3119234400 -18000 0 EST}
-    {3130124400 -14400 1 EDT}
-    {3150684000 -18000 0 EST}
-    {3161574000 -14400 1 EDT}
-    {3182133600 -18000 0 EST}
-    {3193023600 -14400 1 EDT}
-    {3213583200 -18000 0 EST}
-    {3225078000 -14400 1 EDT}
-    {3245637600 -18000 0 EST}
-    {3256527600 -14400 1 EDT}
-    {3277087200 -18000 0 EST}
-    {3287977200 -14400 1 EDT}
-    {3308536800 -18000 0 EST}
-    {3319426800 -14400 1 EDT}
-    {3339986400 -18000 0 EST}
-    {3350876400 -14400 1 EDT}
-    {3371436000 -18000 0 EST}
-    {3382930800 -14400 1 EDT}
-    {3403490400 -18000 0 EST}
-    {3414380400 -14400 1 EDT}
-    {3434940000 -18000 0 EST}
-    {3445830000 -14400 1 EDT}
-    {3466389600 -18000 0 EST}
-    {3477279600 -14400 1 EDT}
-    {3497839200 -18000 0 EST}
-    {3508729200 -14400 1 EDT}
-    {3529288800 -18000 0 EST}
-    {3540178800 -14400 1 EDT}
-    {3560738400 -18000 0 EST}
-    {3572233200 -14400 1 EDT}
-    {3592792800 -18000 0 EST}
-    {3603682800 -14400 1 EDT}
-    {3624242400 -18000 0 EST}
-    {3635132400 -14400 1 EDT}
-    {3655692000 -18000 0 EST}
-    {3666582000 -14400 1 EDT}
-    {3687141600 -18000 0 EST}
-    {3698031600 -14400 1 EDT}
-    {3718591200 -18000 0 EST}
-    {3730086000 -14400 1 EDT}
-    {3750645600 -18000 0 EST}
-    {3761535600 -14400 1 EDT}
-    {3782095200 -18000 0 EST}
-    {3792985200 -14400 1 EDT}
-    {3813544800 -18000 0 EST}
-    {3824434800 -14400 1 EDT}
-    {3844994400 -18000 0 EST}
-    {3855884400 -14400 1 EDT}
-    {3876444000 -18000 0 EST}
-    {3887334000 -14400 1 EDT}
-    {3907893600 -18000 0 EST}
-    {3919388400 -14400 1 EDT}
-    {3939948000 -18000 0 EST}
-    {3950838000 -14400 1 EDT}
-    {3971397600 -18000 0 EST}
-    {3982287600 -14400 1 EDT}
-    {4002847200 -18000 0 EST}
-    {4013737200 -14400 1 EDT}
-    {4034296800 -18000 0 EST}
-    {4045186800 -14400 1 EDT}
-    {4065746400 -18000 0 EST}
-    {4076636400 -14400 1 EDT}
-    {4097196000 -18000 0 EST}
+if {![info exists TZData(America/Toronto)]} {
+    LoadTimeZoneFile America/Toronto
 }
+set TZData(:America/Montreal) $TZData(:America/Toronto)
diff --git a/library/tzdata/America/Montserrat b/library/tzdata/America/Montserrat
index 4d82766..0a656d3 100644
--- a/library/tzdata/America/Montserrat
+++ b/library/tzdata/America/Montserrat
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Montserrat) {
-    {-9223372036854775808 -14932 0 LMT}
-    {-1846266608 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Montserrat) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/Nassau b/library/tzdata/America/Nassau
index 06c5f06..1c35e93 100644
--- a/library/tzdata/America/Nassau
+++ b/library/tzdata/America/Nassau
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:America/Nassau) {
-    {-9223372036854775808 -18564 0 LMT}
-    {-1825095036 -18000 0 EST}
+    {-9223372036854775808 -18570 0 LMT}
+    {-1825095030 -18000 0 EST}
     {-179341200 -14400 1 EDT}
     {-163620000 -18000 0 EST}
     {-147891600 -14400 1 EDT}
diff --git a/library/tzdata/America/Port-au-Prince b/library/tzdata/America/Port-au-Prince
index 639972b..f1d7fc4 100644
--- a/library/tzdata/America/Port-au-Prince
+++ b/library/tzdata/America/Port-au-Prince
@@ -40,4 +40,178 @@ set TZData(:America/Port-au-Prince) {
     {1162094400 -18000 0 EST}
     {1331449200 -14400 1 EDT}
     {1352008800 -18000 0 EST}
+    {1362898800 -14400 1 EDT}
+    {1383458400 -18000 0 EST}
+    {1394348400 -14400 1 EDT}
+    {1414908000 -18000 0 EST}
+    {1425798000 -14400 1 EDT}
+    {1446357600 -18000 0 EST}
+    {1457852400 -14400 1 EDT}
+    {1478412000 -18000 0 EST}
+    {1489302000 -14400 1 EDT}
+    {1509861600 -18000 0 EST}
+    {1520751600 -14400 1 EDT}
+    {1541311200 -18000 0 EST}
+    {1552201200 -14400 1 EDT}
+    {1572760800 -18000 0 EST}
+    {1583650800 -14400 1 EDT}
+    {1604210400 -18000 0 EST}
+    {1615705200 -14400 1 EDT}
+    {1636264800 -18000 0 EST}
+    {1647154800 -14400 1 EDT}
+    {1667714400 -18000 0 EST}
+    {1678604400 -14400 1 EDT}
+    {1699164000 -18000 0 EST}
+    {1710054000 -14400 1 EDT}
+    {1730613600 -18000 0 EST}
+    {1741503600 -14400 1 EDT}
+    {1762063200 -18000 0 EST}
+    {1772953200 -14400 1 EDT}
+    {1793512800 -18000 0 EST}
+    {1805007600 -14400 1 EDT}
+    {1825567200 -18000 0 EST}
+    {1836457200 -14400 1 EDT}
+    {1857016800 -18000 0 EST}
+    {1867906800 -14400 1 EDT}
+    {1888466400 -18000 0 EST}
+    {1899356400 -14400 1 EDT}
+    {1919916000 -18000 0 EST}
+    {1930806000 -14400 1 EDT}
+    {1951365600 -18000 0 EST}
+    {1962860400 -14400 1 EDT}
+    {1983420000 -18000 0 EST}
+    {1994310000 -14400 1 EDT}
+    {2014869600 -18000 0 EST}
+    {2025759600 -14400 1 EDT}
+    {2046319200 -18000 0 EST}
+    {2057209200 -14400 1 EDT}
+    {2077768800 -18000 0 EST}
+    {2088658800 -14400 1 EDT}
+    {2109218400 -18000 0 EST}
+    {2120108400 -14400 1 EDT}
+    {2140668000 -18000 0 EST}
+    {2152162800 -14400 1 EDT}
+    {2172722400 -18000 0 EST}
+    {2183612400 -14400 1 EDT}
+    {2204172000 -18000 0 EST}
+    {2215062000 -14400 1 EDT}
+    {2235621600 -18000 0 EST}
+    {2246511600 -14400 1 EDT}
+    {2267071200 -18000 0 EST}
+    {2277961200 -14400 1 EDT}
+    {2298520800 -18000 0 EST}
+    {2309410800 -14400 1 EDT}
+    {2329970400 -18000 0 EST}
+    {2341465200 -14400 1 EDT}
+    {2362024800 -18000 0 EST}
+    {2372914800 -14400 1 EDT}
+    {2393474400 -18000 0 EST}
+    {2404364400 -14400 1 EDT}
+    {2424924000 -18000 0 EST}
+    {2435814000 -14400 1 EDT}
+    {2456373600 -18000 0 EST}
+    {2467263600 -14400 1 EDT}
+    {2487823200 -18000 0 EST}
+    {2499318000 -14400 1 EDT}
+    {2519877600 -18000 0 EST}
+    {2530767600 -14400 1 EDT}
+    {2551327200 -18000 0 EST}
+    {2562217200 -14400 1 EDT}
+    {2582776800 -18000 0 EST}
+    {2593666800 -14400 1 EDT}
+    {2614226400 -18000 0 EST}
+    {2625116400 -14400 1 EDT}
+    {2645676000 -18000 0 EST}
+    {2656566000 -14400 1 EDT}
+    {2677125600 -18000 0 EST}
+    {2688620400 -14400 1 EDT}
+    {2709180000 -18000 0 EST}
+    {2720070000 -14400 1 EDT}
+    {2740629600 -18000 0 EST}
+    {2751519600 -14400 1 EDT}
+    {2772079200 -18000 0 EST}
+    {2782969200 -14400 1 EDT}
+    {2803528800 -18000 0 EST}
+    {2814418800 -14400 1 EDT}
+    {2834978400 -18000 0 EST}
+    {2846473200 -14400 1 EDT}
+    {2867032800 -18000 0 EST}
+    {2877922800 -14400 1 EDT}
+    {2898482400 -18000 0 EST}
+    {2909372400 -14400 1 EDT}
+    {2929932000 -18000 0 EST}
+    {2940822000 -14400 1 EDT}
+    {2961381600 -18000 0 EST}
+    {2972271600 -14400 1 EDT}
+    {2992831200 -18000 0 EST}
+    {3003721200 -14400 1 EDT}
+    {3024280800 -18000 0 EST}
+    {3035775600 -14400 1 EDT}
+    {3056335200 -18000 0 EST}
+    {3067225200 -14400 1 EDT}
+    {3087784800 -18000 0 EST}
+    {3098674800 -14400 1 EDT}
+    {3119234400 -18000 0 EST}
+    {3130124400 -14400 1 EDT}
+    {3150684000 -18000 0 EST}
+    {3161574000 -14400 1 EDT}
+    {3182133600 -18000 0 EST}
+    {3193023600 -14400 1 EDT}
+    {3213583200 -18000 0 EST}
+    {3225078000 -14400 1 EDT}
+    {3245637600 -18000 0 EST}
+    {3256527600 -14400 1 EDT}
+    {3277087200 -18000 0 EST}
+    {3287977200 -14400 1 EDT}
+    {3308536800 -18000 0 EST}
+    {3319426800 -14400 1 EDT}
+    {3339986400 -18000 0 EST}
+    {3350876400 -14400 1 EDT}
+    {3371436000 -18000 0 EST}
+    {3382930800 -14400 1 EDT}
+    {3403490400 -18000 0 EST}
+    {3414380400 -14400 1 EDT}
+    {3434940000 -18000 0 EST}
+    {3445830000 -14400 1 EDT}
+    {3466389600 -18000 0 EST}
+    {3477279600 -14400 1 EDT}
+    {3497839200 -18000 0 EST}
+    {3508729200 -14400 1 EDT}
+    {3529288800 -18000 0 EST}
+    {3540178800 -14400 1 EDT}
+    {3560738400 -18000 0 EST}
+    {3572233200 -14400 1 EDT}
+    {3592792800 -18000 0 EST}
+    {3603682800 -14400 1 EDT}
+    {3624242400 -18000 0 EST}
+    {3635132400 -14400 1 EDT}
+    {3655692000 -18000 0 EST}
+    {3666582000 -14400 1 EDT}
+    {3687141600 -18000 0 EST}
+    {3698031600 -14400 1 EDT}
+    {3718591200 -18000 0 EST}
+    {3730086000 -14400 1 EDT}
+    {3750645600 -18000 0 EST}
+    {3761535600 -14400 1 EDT}
+    {3782095200 -18000 0 EST}
+    {3792985200 -14400 1 EDT}
+    {3813544800 -18000 0 EST}
+    {3824434800 -14400 1 EDT}
+    {3844994400 -18000 0 EST}
+    {3855884400 -14400 1 EDT}
+    {3876444000 -18000 0 EST}
+    {3887334000 -14400 1 EDT}
+    {3907893600 -18000 0 EST}
+    {3919388400 -14400 1 EDT}
+    {3939948000 -18000 0 EST}
+    {3950838000 -14400 1 EDT}
+    {3971397600 -18000 0 EST}
+    {3982287600 -14400 1 EDT}
+    {4002847200 -18000 0 EST}
+    {4013737200 -14400 1 EDT}
+    {4034296800 -18000 0 EST}
+    {4045186800 -14400 1 EDT}
+    {4065746400 -18000 0 EST}
+    {4076636400 -14400 1 EDT}
+    {4097196000 -18000 0 EST}
 }
diff --git a/library/tzdata/America/Rio_Branco b/library/tzdata/America/Rio_Branco
index 20889cb..f0ff7fa 100644
--- a/library/tzdata/America/Rio_Branco
+++ b/library/tzdata/America/Rio_Branco
@@ -33,4 +33,5 @@ set TZData(:America/Rio_Branco) {
     {571204800 -18000 0 ACT}
     {590040000 -18000 0 ACT}
     {1214283600 -14400 0 AMT}
+    {1384056000 -18000 0 ACT}
 }
diff --git a/library/tzdata/America/Santiago b/library/tzdata/America/Santiago
index f42ff3d..b6d9b38 100644
--- a/library/tzdata/America/Santiago
+++ b/library/tzdata/America/Santiago
@@ -3,9 +3,9 @@
 set TZData(:America/Santiago) {
     {-9223372036854775808 -16966 0 LMT}
     {-2524504634 -16966 0 SMT}
-    {-1893439034 -18000 0 CLT}
+    {-1892661434 -18000 0 CLT}
     {-1688410800 -16966 0 SMT}
-    {-1619983034 -14400 0 CLT}
+    {-1619205434 -14400 0 CLT}
     {-1593806400 -16966 0 SMT}
     {-1335986234 -18000 0 CLT}
     {-1335985200 -14400 1 CLST}
@@ -18,13 +18,13 @@ set TZData(:America/Santiago) {
     {-1222977600 -18000 0 CLT}
     {-1209754800 -14400 1 CLST}
     {-1191355200 -18000 0 CLT}
-    {-1178132400 -14400 1 CLST}
+    {-1178132400 -14400 0 CLT}
     {-870552000 -18000 0 CLT}
-    {-865278000 -14400 1 CLST}
-    {-740520000 -14400 1 CLST}
-    {-736376400 -18000 0 CLT}
+    {-865278000 -14400 0 CLT}
+    {-740520000 -10800 1 CLST}
+    {-736376400 -14400 0 CLT}
     {-718056000 -18000 0 CLT}
-    {-713646000 -14400 0 CLT}
+    {-713649600 -14400 0 CLT}
     {-36619200 -10800 1 CLST}
     {-23922000 -14400 0 CLT}
     {-3355200 -10800 1 CLST}
@@ -65,10 +65,10 @@ set TZData(:America/Santiago) {
     {545194800 -14400 0 CLT}
     {560923200 -10800 1 CLST}
     {574225200 -14400 0 CLT}
-    {591768000 -10800 1 CLST}
+    {592372800 -10800 1 CLST}
     {605674800 -14400 0 CLT}
     {624427200 -10800 1 CLST}
-    {637729200 -14400 0 CLT}
+    {637124400 -14400 0 CLT}
     {653457600 -10800 1 CLST}
     {668574000 -14400 0 CLT}
     {687326400 -10800 1 CLST}
@@ -114,178 +114,9 @@ set TZData(:America/Santiago) {
     {1313899200 -10800 1 CLST}
     {1335668400 -14400 0 CLT}
     {1346558400 -10800 1 CLST}
-    {1362884400 -14400 0 CLT}
-    {1381636800 -10800 1 CLST}
-    {1394334000 -14400 0 CLT}
-    {1413086400 -10800 1 CLST}
-    {1426388400 -14400 0 CLT}
-    {1444536000 -10800 1 CLST}
-    {1457838000 -14400 0 CLT}
-    {1475985600 -10800 1 CLST}
-    {1489287600 -14400 0 CLT}
-    {1508040000 -10800 1 CLST}
-    {1520737200 -14400 0 CLT}
-    {1539489600 -10800 1 CLST}
-    {1552186800 -14400 0 CLT}
-    {1570939200 -10800 1 CLST}
-    {1584241200 -14400 0 CLT}
-    {1602388800 -10800 1 CLST}
-    {1615690800 -14400 0 CLT}
-    {1633838400 -10800 1 CLST}
-    {1647140400 -14400 0 CLT}
-    {1665288000 -10800 1 CLST}
-    {1678590000 -14400 0 CLT}
-    {1697342400 -10800 1 CLST}
-    {1710039600 -14400 0 CLT}
-    {1728792000 -10800 1 CLST}
-    {1741489200 -14400 0 CLT}
-    {1760241600 -10800 1 CLST}
-    {1773543600 -14400 0 CLT}
-    {1791691200 -10800 1 CLST}
-    {1804993200 -14400 0 CLT}
-    {1823140800 -10800 1 CLST}
-    {1836442800 -14400 0 CLT}
-    {1855195200 -10800 1 CLST}
-    {1867892400 -14400 0 CLT}
-    {1886644800 -10800 1 CLST}
-    {1899342000 -14400 0 CLT}
-    {1918094400 -10800 1 CLST}
-    {1930791600 -14400 0 CLT}
-    {1949544000 -10800 1 CLST}
-    {1962846000 -14400 0 CLT}
-    {1980993600 -10800 1 CLST}
-    {1994295600 -14400 0 CLT}
-    {2012443200 -10800 1 CLST}
-    {2025745200 -14400 0 CLT}
-    {2044497600 -10800 1 CLST}
-    {2057194800 -14400 0 CLT}
-    {2075947200 -10800 1 CLST}
-    {2088644400 -14400 0 CLT}
-    {2107396800 -10800 1 CLST}
-    {2120698800 -14400 0 CLT}
-    {2138846400 -10800 1 CLST}
-    {2152148400 -14400 0 CLT}
-    {2170296000 -10800 1 CLST}
-    {2183598000 -14400 0 CLT}
-    {2201745600 -10800 1 CLST}
-    {2215047600 -14400 0 CLT}
-    {2233800000 -10800 1 CLST}
-    {2246497200 -14400 0 CLT}
-    {2265249600 -10800 1 CLST}
-    {2277946800 -14400 0 CLT}
-    {2296699200 -10800 1 CLST}
-    {2310001200 -14400 0 CLT}
-    {2328148800 -10800 1 CLST}
-    {2341450800 -14400 0 CLT}
-    {2359598400 -10800 1 CLST}
-    {2372900400 -14400 0 CLT}
-    {2391652800 -10800 1 CLST}
-    {2404350000 -14400 0 CLT}
-    {2423102400 -10800 1 CLST}
-    {2435799600 -14400 0 CLT}
-    {2454552000 -10800 1 CLST}
-    {2467854000 -14400 0 CLT}
-    {2486001600 -10800 1 CLST}
-    {2499303600 -14400 0 CLT}
-    {2517451200 -10800 1 CLST}
-    {2530753200 -14400 0 CLT}
-    {2548900800 -10800 1 CLST}
-    {2562202800 -14400 0 CLT}
-    {2580955200 -10800 1 CLST}
-    {2593652400 -14400 0 CLT}
-    {2612404800 -10800 1 CLST}
-    {2625102000 -14400 0 CLT}
-    {2643854400 -10800 1 CLST}
-    {2657156400 -14400 0 CLT}
-    {2675304000 -10800 1 CLST}
-    {2688606000 -14400 0 CLT}
-    {2706753600 -10800 1 CLST}
-    {2720055600 -14400 0 CLT}
-    {2738808000 -10800 1 CLST}
-    {2751505200 -14400 0 CLT}
-    {2770257600 -10800 1 CLST}
-    {2782954800 -14400 0 CLT}
-    {2801707200 -10800 1 CLST}
-    {2814404400 -14400 0 CLT}
-    {2833156800 -10800 1 CLST}
-    {2846458800 -14400 0 CLT}
-    {2864606400 -10800 1 CLST}
-    {2877908400 -14400 0 CLT}
-    {2896056000 -10800 1 CLST}
-    {2909358000 -14400 0 CLT}
-    {2928110400 -10800 1 CLST}
-    {2940807600 -14400 0 CLT}
-    {2959560000 -10800 1 CLST}
-    {2972257200 -14400 0 CLT}
-    {2991009600 -10800 1 CLST}
-    {3004311600 -14400 0 CLT}
-    {3022459200 -10800 1 CLST}
-    {3035761200 -14400 0 CLT}
-    {3053908800 -10800 1 CLST}
-    {3067210800 -14400 0 CLT}
-    {3085358400 -10800 1 CLST}
-    {3098660400 -14400 0 CLT}
-    {3117412800 -10800 1 CLST}
-    {3130110000 -14400 0 CLT}
-    {3148862400 -10800 1 CLST}
-    {3161559600 -14400 0 CLT}
-    {3180312000 -10800 1 CLST}
-    {3193614000 -14400 0 CLT}
-    {3211761600 -10800 1 CLST}
-    {3225063600 -14400 0 CLT}
-    {3243211200 -10800 1 CLST}
-    {3256513200 -14400 0 CLT}
-    {3275265600 -10800 1 CLST}
-    {3287962800 -14400 0 CLT}
-    {3306715200 -10800 1 CLST}
-    {3319412400 -14400 0 CLT}
-    {3338164800 -10800 1 CLST}
-    {3351466800 -14400 0 CLT}
-    {3369614400 -10800 1 CLST}
-    {3382916400 -14400 0 CLT}
-    {3401064000 -10800 1 CLST}
-    {3414366000 -14400 0 CLT}
-    {3432513600 -10800 1 CLST}
-    {3445815600 -14400 0 CLT}
-    {3464568000 -10800 1 CLST}
-    {3477265200 -14400 0 CLT}
-    {3496017600 -10800 1 CLST}
-    {3508714800 -14400 0 CLT}
-    {3527467200 -10800 1 CLST}
-    {3540769200 -14400 0 CLT}
-    {3558916800 -10800 1 CLST}
-    {3572218800 -14400 0 CLT}
-    {3590366400 -10800 1 CLST}
-    {3603668400 -14400 0 CLT}
-    {3622420800 -10800 1 CLST}
-    {3635118000 -14400 0 CLT}
-    {3653870400 -10800 1 CLST}
-    {3666567600 -14400 0 CLT}
-    {3685320000 -10800 1 CLST}
-    {3698017200 -14400 0 CLT}
-    {3716769600 -10800 1 CLST}
-    {3730071600 -14400 0 CLT}
-    {3748219200 -10800 1 CLST}
-    {3761521200 -14400 0 CLT}
-    {3779668800 -10800 1 CLST}
-    {3792970800 -14400 0 CLT}
-    {3811723200 -10800 1 CLST}
-    {3824420400 -14400 0 CLT}
-    {3843172800 -10800 1 CLST}
-    {3855870000 -14400 0 CLT}
-    {3874622400 -10800 1 CLST}
-    {3887924400 -14400 0 CLT}
-    {3906072000 -10800 1 CLST}
-    {3919374000 -14400 0 CLT}
-    {3937521600 -10800 1 CLST}
-    {3950823600 -14400 0 CLT}
-    {3968971200 -10800 1 CLST}
-    {3982273200 -14400 0 CLT}
-    {4001025600 -10800 1 CLST}
-    {4013722800 -14400 0 CLT}
-    {4032475200 -10800 1 CLST}
-    {4045172400 -14400 0 CLT}
-    {4063924800 -10800 1 CLST}
-    {4077226800 -14400 0 CLT}
-    {4095374400 -10800 1 CLST}
+    {1367118000 -14400 0 CLT}
+    {1378612800 -10800 1 CLST}
+    {1398567600 -14400 0 CLT}
+    {1410062400 -10800 1 CLST}
+    {1430017200 -10800 0 CLT}
 }
diff --git a/library/tzdata/America/St_Barthelemy b/library/tzdata/America/St_Barthelemy
index 25c114a..46bc287 100644
--- a/library/tzdata/America/St_Barthelemy
+++ b/library/tzdata/America/St_Barthelemy
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(America/Guadeloupe)]} {
-    LoadTimeZoneFile America/Guadeloupe
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
-set TZData(:America/St_Barthelemy) $TZData(:America/Guadeloupe)
+set TZData(:America/St_Barthelemy) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/St_Kitts b/library/tzdata/America/St_Kitts
index bfd803b..6ad7f04 100644
--- a/library/tzdata/America/St_Kitts
+++ b/library/tzdata/America/St_Kitts
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/St_Kitts) {
-    {-9223372036854775808 -15052 0 LMT}
-    {-1825098548 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/St_Kitts) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/St_Lucia b/library/tzdata/America/St_Lucia
index c2767dd..e479b31 100644
--- a/library/tzdata/America/St_Lucia
+++ b/library/tzdata/America/St_Lucia
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/St_Lucia) {
-    {-9223372036854775808 -14640 0 LMT}
-    {-2524506960 -14640 0 CMT}
-    {-1830369360 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/St_Lucia) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/St_Thomas b/library/tzdata/America/St_Thomas
index bf93595..24698b8 100644
--- a/library/tzdata/America/St_Thomas
+++ b/library/tzdata/America/St_Thomas
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/St_Thomas) {
-    {-9223372036854775808 -15584 0 LMT}
-    {-1846266016 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/St_Thomas) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/St_Vincent b/library/tzdata/America/St_Vincent
index 3a884c7..e3b32fb 100644
--- a/library/tzdata/America/St_Vincent
+++ b/library/tzdata/America/St_Vincent
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/St_Vincent) {
-    {-9223372036854775808 -14696 0 LMT}
-    {-2524506904 -14696 0 KMT}
-    {-1830369304 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/St_Vincent) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/Tortola b/library/tzdata/America/Tortola
index bf7f1fc..aa6f655 100644
--- a/library/tzdata/America/Tortola
+++ b/library/tzdata/America/Tortola
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Tortola) {
-    {-9223372036854775808 -15508 0 LMT}
-    {-1846266092 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Tortola) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/America/Virgin b/library/tzdata/America/Virgin
index 390d7c2..c267e5b 100644
--- a/library/tzdata/America/Virgin
+++ b/library/tzdata/America/Virgin
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(America/St_Thomas)]} {
-    LoadTimeZoneFile America/St_Thomas
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
-set TZData(:America/Virgin) $TZData(:America/St_Thomas)
+set TZData(:America/Virgin) $TZData(:America/Port_of_Spain)
diff --git a/library/tzdata/Antarctica/Casey b/library/tzdata/Antarctica/Casey
index cbe3e3c..56d5df7 100644
--- a/library/tzdata/Antarctica/Casey
+++ b/library/tzdata/Antarctica/Casey
@@ -2,9 +2,9 @@
 
 set TZData(:Antarctica/Casey) {
     {-9223372036854775808 0 0 zzz}
-    {-31536000 28800 0 WST}
+    {-31536000 28800 0 AWST}
     {1255802400 39600 0 CAST}
-    {1267714800 28800 0 WST}
+    {1267714800 28800 0 AWST}
     {1319738400 39600 0 CAST}
-    {1329843600 28800 0 WST}
+    {1329843600 28800 0 AWST}
 }
diff --git a/library/tzdata/Antarctica/Macquarie b/library/tzdata/Antarctica/Macquarie
index 9877ee8..07ddff6 100644
--- a/library/tzdata/Antarctica/Macquarie
+++ b/library/tzdata/Antarctica/Macquarie
@@ -2,101 +2,96 @@
 
 set TZData(:Antarctica/Macquarie) {
     {-9223372036854775808 0 0 zzz}
-    {-1861920000 36000 0 EST}
-    {-1680508800 39600 1 EST}
-    {-1669892400 39600 0 EST}
-    {-1665392400 36000 0 EST}
-    {-883641600 39600 1 EST}
-    {-876128400 36000 0 EST}
-    {-860400000 39600 1 EST}
-    {-844678800 36000 0 EST}
-    {-828345600 39600 1 EST}
-    {-813229200 36000 0 EST}
-    {-94730400 36000 0 EST}
-    {-71136000 39600 1 EST}
-    {-55411200 36000 0 EST}
-    {-37267200 39600 1 EST}
-    {-25776000 36000 0 EST}
-    {-5817600 39600 1 EST}
-    {5673600 36000 0 EST}
-    {25632000 39600 1 EST}
-    {37728000 36000 0 EST}
-    {57686400 39600 1 EST}
-    {67968000 36000 0 EST}
-    {89136000 39600 1 EST}
-    {100022400 36000 0 EST}
-    {120585600 39600 1 EST}
-    {131472000 36000 0 EST}
-    {152035200 39600 1 EST}
-    {162921600 36000 0 EST}
-    {183484800 39600 1 EST}
-    {194976000 36000 0 EST}
-    {215539200 39600 1 EST}
-    {226425600 36000 0 EST}
-    {246988800 39600 1 EST}
-    {257875200 36000 0 EST}
-    {278438400 39600 1 EST}
-    {289324800 36000 0 EST}
-    {309888000 39600 1 EST}
-    {320774400 36000 0 EST}
-    {341337600 39600 1 EST}
-    {352224000 36000 0 EST}
-    {372787200 39600 1 EST}
-    {386092800 36000 0 EST}
-    {404841600 39600 1 EST}
-    {417542400 36000 0 EST}
-    {436291200 39600 1 EST}
-    {447177600 36000 0 EST}
-    {467740800 39600 1 EST}
-    {478627200 36000 0 EST}
-    {499190400 39600 1 EST}
-    {510076800 36000 0 EST}
-    {530035200 39600 1 EST}
-    {542736000 36000 0 EST}
-    {562089600 39600 1 EST}
-    {574790400 36000 0 EST}
-    {594144000 39600 1 EST}
-    {606240000 36000 0 EST}
-    {625593600 39600 1 EST}
-    {637689600 36000 0 EST}
-    {657043200 39600 1 EST}
-    {670348800 36000 0 EST}
-    {686678400 39600 1 EST}
-    {701798400 36000 0 EST}
-    {718128000 39600 1 EST}
-    {733248000 36000 0 EST}
-    {749577600 39600 1 EST}
-    {764697600 36000 0 EST}
-    {781027200 39600 1 EST}
-    {796147200 36000 0 EST}
-    {812476800 39600 1 EST}
-    {828201600 36000 0 EST}
-    {844531200 39600 1 EST}
-    {859651200 36000 0 EST}
-    {875980800 39600 1 EST}
-    {891100800 36000 0 EST}
-    {907430400 39600 1 EST}
-    {922550400 36000 0 EST}
-    {938880000 39600 1 EST}
-    {954000000 36000 0 EST}
-    {967305600 39600 1 EST}
-    {985449600 36000 0 EST}
-    {1002384000 39600 1 EST}
-    {1017504000 36000 0 EST}
-    {1033833600 39600 1 EST}
-    {1048953600 36000 0 EST}
-    {1065283200 39600 1 EST}
-    {1080403200 36000 0 EST}
-    {1096732800 39600 1 EST}
-    {1111852800 36000 0 EST}
-    {1128182400 39600 1 EST}
-    {1143907200 36000 0 EST}
-    {1159632000 39600 1 EST}
-    {1174752000 36000 0 EST}
-    {1191686400 39600 1 EST}
-    {1207411200 36000 0 EST}
-    {1223136000 39600 1 EST}
-    {1238860800 36000 0 EST}
-    {1254585600 39600 1 EST}
+    {-2214259200 36000 0 AEST}
+    {-1680508800 39600 1 AEDT}
+    {-1669892400 39600 0 AEDT}
+    {-1665392400 36000 0 AEST}
+    {-1601719200 0 0 zzz}
+    {-94730400 36000 0 AEST}
+    {-71136000 39600 1 AEDT}
+    {-55411200 36000 0 AEST}
+    {-37267200 39600 1 AEDT}
+    {-25776000 36000 0 AEST}
+    {-5817600 39600 1 AEDT}
+    {5673600 36000 0 AEST}
+    {25632000 39600 1 AEDT}
+    {37728000 36000 0 AEST}
+    {57686400 39600 1 AEDT}
+    {67968000 36000 0 AEST}
+    {89136000 39600 1 AEDT}
+    {100022400 36000 0 AEST}
+    {120585600 39600 1 AEDT}
+    {131472000 36000 0 AEST}
+    {152035200 39600 1 AEDT}
+    {162921600 36000 0 AEST}
+    {183484800 39600 1 AEDT}
+    {194976000 36000 0 AEST}
+    {215539200 39600 1 AEDT}
+    {226425600 36000 0 AEST}
+    {246988800 39600 1 AEDT}
+    {257875200 36000 0 AEST}
+    {278438400 39600 1 AEDT}
+    {289324800 36000 0 AEST}
+    {309888000 39600 1 AEDT}
+    {320774400 36000 0 AEST}
+    {341337600 39600 1 AEDT}
+    {352224000 36000 0 AEST}
+    {372787200 39600 1 AEDT}
+    {386092800 36000 0 AEST}
+    {404841600 39600 1 AEDT}
+    {417542400 36000 0 AEST}
+    {436291200 39600 1 AEDT}
+    {447177600 36000 0 AEST}
+    {467740800 39600 1 AEDT}
+    {478627200 36000 0 AEST}
+    {499190400 39600 1 AEDT}
+    {510076800 36000 0 AEST}
+    {530035200 39600 1 AEDT}
+    {542736000 36000 0 AEST}
+    {562089600 39600 1 AEDT}
+    {574790400 36000 0 AEST}
+    {594144000 39600 1 AEDT}
+    {606240000 36000 0 AEST}
+    {625593600 39600 1 AEDT}
+    {637689600 36000 0 AEST}
+    {657043200 39600 1 AEDT}
+    {670348800 36000 0 AEST}
+    {686678400 39600 1 AEDT}
+    {701798400 36000 0 AEST}
+    {718128000 39600 1 AEDT}
+    {733248000 36000 0 AEST}
+    {749577600 39600 1 AEDT}
+    {764697600 36000 0 AEST}
+    {781027200 39600 1 AEDT}
+    {796147200 36000 0 AEST}
+    {812476800 39600 1 AEDT}
+    {828201600 36000 0 AEST}
+    {844531200 39600 1 AEDT}
+    {859651200 36000 0 AEST}
+    {875980800 39600 1 AEDT}
+    {891100800 36000 0 AEST}
+    {907430400 39600 1 AEDT}
+    {922550400 36000 0 AEST}
+    {938880000 39600 1 AEDT}
+    {954000000 36000 0 AEST}
+    {967305600 39600 1 AEDT}
+    {985449600 36000 0 AEST}
+    {1002384000 39600 1 AEDT}
+    {1017504000 36000 0 AEST}
+    {1033833600 39600 1 AEDT}
+    {1048953600 36000 0 AEST}
+    {1065283200 39600 1 AEDT}
+    {1080403200 36000 0 AEST}
+    {1096732800 39600 1 AEDT}
+    {1111852800 36000 0 AEST}
+    {1128182400 39600 1 AEDT}
+    {1143907200 36000 0 AEST}
+    {1159632000 39600 1 AEDT}
+    {1174752000 36000 0 AEST}
+    {1191686400 39600 1 AEDT}
+    {1207411200 36000 0 AEST}
+    {1223136000 39600 1 AEDT}
+    {1238860800 36000 0 AEST}
+    {1254585600 39600 1 AEDT}
     {1270310400 39600 0 MIST}
 }
diff --git a/library/tzdata/Antarctica/McMurdo b/library/tzdata/Antarctica/McMurdo
index 670f7eb..3b29ba1 100644
--- a/library/tzdata/Antarctica/McMurdo
+++ b/library/tzdata/Antarctica/McMurdo
@@ -1,257 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Antarctica/McMurdo) {
-    {-9223372036854775808 0 0 zzz}
-    {-441849600 43200 0 NZST}
-    {152632800 46800 1 NZDT}
-    {162309600 43200 0 NZST}
-    {183477600 46800 1 NZDT}
-    {194968800 43200 0 NZST}
-    {215532000 46800 1 NZDT}
-    {226418400 43200 0 NZST}
-    {246981600 46800 1 NZDT}
-    {257868000 43200 0 NZST}
-    {278431200 46800 1 NZDT}
-    {289317600 43200 0 NZST}
-    {309880800 46800 1 NZDT}
-    {320767200 43200 0 NZST}
-    {341330400 46800 1 NZDT}
-    {352216800 43200 0 NZST}
-    {372780000 46800 1 NZDT}
-    {384271200 43200 0 NZST}
-    {404834400 46800 1 NZDT}
-    {415720800 43200 0 NZST}
-    {436284000 46800 1 NZDT}
-    {447170400 43200 0 NZST}
-    {467733600 46800 1 NZDT}
-    {478620000 43200 0 NZST}
-    {499183200 46800 1 NZDT}
-    {510069600 43200 0 NZST}
-    {530632800 46800 1 NZDT}
-    {541519200 43200 0 NZST}
-    {562082400 46800 1 NZDT}
-    {573573600 43200 0 NZST}
-    {594136800 46800 1 NZDT}
-    {605023200 43200 0 NZST}
-    {623772000 46800 1 NZDT}
-    {637682400 43200 0 NZST}
-    {655221600 46800 1 NZDT}
-    {669132000 43200 0 NZST}
-    {686671200 46800 1 NZDT}
-    {700581600 43200 0 NZST}
-    {718120800 46800 1 NZDT}
-    {732636000 43200 0 NZST}
-    {749570400 46800 1 NZDT}
-    {764085600 43200 0 NZST}
-    {781020000 46800 1 NZDT}
-    {795535200 43200 0 NZST}
-    {812469600 46800 1 NZDT}
-    {826984800 43200 0 NZST}
-    {844524000 46800 1 NZDT}
-    {858434400 43200 0 NZST}
-    {875973600 46800 1 NZDT}
-    {889884000 43200 0 NZST}
-    {907423200 46800 1 NZDT}
-    {921938400 43200 0 NZST}
-    {938872800 46800 1 NZDT}
-    {953388000 43200 0 NZST}
-    {970322400 46800 1 NZDT}
-    {984837600 43200 0 NZST}
-    {1002376800 46800 1 NZDT}
-    {1016287200 43200 0 NZST}
-    {1033826400 46800 1 NZDT}
-    {1047736800 43200 0 NZST}
-    {1065276000 46800 1 NZDT}
-    {1079791200 43200 0 NZST}
-    {1096725600 46800 1 NZDT}
-    {1111240800 43200 0 NZST}
-    {1128175200 46800 1 NZDT}
-    {1142690400 43200 0 NZST}
-    {1159624800 46800 1 NZDT}
-    {1174140000 43200 0 NZST}
-    {1191074400 46800 1 NZDT}
-    {1207404000 43200 0 NZST}
-    {1222524000 46800 1 NZDT}
-    {1238853600 43200 0 NZST}
-    {1253973600 46800 1 NZDT}
-    {1270303200 43200 0 NZST}
-    {1285423200 46800 1 NZDT}
-    {1301752800 43200 0 NZST}
-    {1316872800 46800 1 NZDT}
-    {1333202400 43200 0 NZST}
-    {1348927200 46800 1 NZDT}
-    {1365256800 43200 0 NZST}
-    {1380376800 46800 1 NZDT}
-    {1396706400 43200 0 NZST}
-    {1411826400 46800 1 NZDT}
-    {1428156000 43200 0 NZST}
-    {1443276000 46800 1 NZDT}
-    {1459605600 43200 0 NZST}
-    {1474725600 46800 1 NZDT}
-    {1491055200 43200 0 NZST}
-    {1506175200 46800 1 NZDT}
-    {1522504800 43200 0 NZST}
-    {1538229600 46800 1 NZDT}
-    {1554559200 43200 0 NZST}
-    {1569679200 46800 1 NZDT}
-    {1586008800 43200 0 NZST}
-    {1601128800 46800 1 NZDT}
-    {1617458400 43200 0 NZST}
-    {1632578400 46800 1 NZDT}
-    {1648908000 43200 0 NZST}
-    {1664028000 46800 1 NZDT}
-    {1680357600 43200 0 NZST}
-    {1695477600 46800 1 NZDT}
-    {1712412000 43200 0 NZST}
-    {1727532000 46800 1 NZDT}
-    {1743861600 43200 0 NZST}
-    {1758981600 46800 1 NZDT}
-    {1775311200 43200 0 NZST}
-    {1790431200 46800 1 NZDT}
-    {1806760800 43200 0 NZST}
-    {1821880800 46800 1 NZDT}
-    {1838210400 43200 0 NZST}
-    {1853330400 46800 1 NZDT}
-    {1869660000 43200 0 NZST}
-    {1885384800 46800 1 NZDT}
-    {1901714400 43200 0 NZST}
-    {1916834400 46800 1 NZDT}
-    {1933164000 43200 0 NZST}
-    {1948284000 46800 1 NZDT}
-    {1964613600 43200 0 NZST}
-    {1979733600 46800 1 NZDT}
-    {1996063200 43200 0 NZST}
-    {2011183200 46800 1 NZDT}
-    {2027512800 43200 0 NZST}
-    {2042632800 46800 1 NZDT}
-    {2058962400 43200 0 NZST}
-    {2074687200 46800 1 NZDT}
-    {2091016800 43200 0 NZST}
-    {2106136800 46800 1 NZDT}
-    {2122466400 43200 0 NZST}
-    {2137586400 46800 1 NZDT}
-    {2153916000 43200 0 NZST}
-    {2169036000 46800 1 NZDT}
-    {2185365600 43200 0 NZST}
-    {2200485600 46800 1 NZDT}
-    {2216815200 43200 0 NZST}
-    {2232540000 46800 1 NZDT}
-    {2248869600 43200 0 NZST}
-    {2263989600 46800 1 NZDT}
-    {2280319200 43200 0 NZST}
-    {2295439200 46800 1 NZDT}
-    {2311768800 43200 0 NZST}
-    {2326888800 46800 1 NZDT}
-    {2343218400 43200 0 NZST}
-    {2358338400 46800 1 NZDT}
-    {2374668000 43200 0 NZST}
-    {2389788000 46800 1 NZDT}
-    {2406117600 43200 0 NZST}
-    {2421842400 46800 1 NZDT}
-    {2438172000 43200 0 NZST}
-    {2453292000 46800 1 NZDT}
-    {2469621600 43200 0 NZST}
-    {2484741600 46800 1 NZDT}
-    {2501071200 43200 0 NZST}
-    {2516191200 46800 1 NZDT}
-    {2532520800 43200 0 NZST}
-    {2547640800 46800 1 NZDT}
-    {2563970400 43200 0 NZST}
-    {2579090400 46800 1 NZDT}
-    {2596024800 43200 0 NZST}
-    {2611144800 46800 1 NZDT}
-    {2627474400 43200 0 NZST}
-    {2642594400 46800 1 NZDT}
-    {2658924000 43200 0 NZST}
-    {2674044000 46800 1 NZDT}
-    {2690373600 43200 0 NZST}
-    {2705493600 46800 1 NZDT}
-    {2721823200 43200 0 NZST}
-    {2736943200 46800 1 NZDT}
-    {2753272800 43200 0 NZST}
-    {2768997600 46800 1 NZDT}
-    {2785327200 43200 0 NZST}
-    {2800447200 46800 1 NZDT}
-    {2816776800 43200 0 NZST}
-    {2831896800 46800 1 NZDT}
-    {2848226400 43200 0 NZST}
-    {2863346400 46800 1 NZDT}
-    {2879676000 43200 0 NZST}
-    {2894796000 46800 1 NZDT}
-    {2911125600 43200 0 NZST}
-    {2926245600 46800 1 NZDT}
-    {2942575200 43200 0 NZST}
-    {2958300000 46800 1 NZDT}
-    {2974629600 43200 0 NZST}
-    {2989749600 46800 1 NZDT}
-    {3006079200 43200 0 NZST}
-    {3021199200 46800 1 NZDT}
-    {3037528800 43200 0 NZST}
-    {3052648800 46800 1 NZDT}
-    {3068978400 43200 0 NZST}
-    {3084098400 46800 1 NZDT}
-    {3100428000 43200 0 NZST}
-    {3116152800 46800 1 NZDT}
-    {3132482400 43200 0 NZST}
-    {3147602400 46800 1 NZDT}
-    {3163932000 43200 0 NZST}
-    {3179052000 46800 1 NZDT}
-    {3195381600 43200 0 NZST}
-    {3210501600 46800 1 NZDT}
-    {3226831200 43200 0 NZST}
-    {3241951200 46800 1 NZDT}
-    {3258280800 43200 0 NZST}
-    {3273400800 46800 1 NZDT}
-    {3289730400 43200 0 NZST}
-    {3305455200 46800 1 NZDT}
-    {3321784800 43200 0 NZST}
-    {3336904800 46800 1 NZDT}
-    {3353234400 43200 0 NZST}
-    {3368354400 46800 1 NZDT}
-    {3384684000 43200 0 NZST}
-    {3399804000 46800 1 NZDT}
-    {3416133600 43200 0 NZST}
-    {3431253600 46800 1 NZDT}
-    {3447583200 43200 0 NZST}
-    {3462703200 46800 1 NZDT}
-    {3479637600 43200 0 NZST}
-    {3494757600 46800 1 NZDT}
-    {3511087200 43200 0 NZST}
-    {3526207200 46800 1 NZDT}
-    {3542536800 43200 0 NZST}
-    {3557656800 46800 1 NZDT}
-    {3573986400 43200 0 NZST}
-    {3589106400 46800 1 NZDT}
-    {3605436000 43200 0 NZST}
-    {3620556000 46800 1 NZDT}
-    {3636885600 43200 0 NZST}
-    {3652610400 46800 1 NZDT}
-    {3668940000 43200 0 NZST}
-    {3684060000 46800 1 NZDT}
-    {3700389600 43200 0 NZST}
-    {3715509600 46800 1 NZDT}
-    {3731839200 43200 0 NZST}
-    {3746959200 46800 1 NZDT}
-    {3763288800 43200 0 NZST}
-    {3778408800 46800 1 NZDT}
-    {3794738400 43200 0 NZST}
-    {3809858400 46800 1 NZDT}
-    {3826188000 43200 0 NZST}
-    {3841912800 46800 1 NZDT}
-    {3858242400 43200 0 NZST}
-    {3873362400 46800 1 NZDT}
-    {3889692000 43200 0 NZST}
-    {3904812000 46800 1 NZDT}
-    {3921141600 43200 0 NZST}
-    {3936261600 46800 1 NZDT}
-    {3952591200 43200 0 NZST}
-    {3967711200 46800 1 NZDT}
-    {3984040800 43200 0 NZST}
-    {3999765600 46800 1 NZDT}
-    {4016095200 43200 0 NZST}
-    {4031215200 46800 1 NZDT}
-    {4047544800 43200 0 NZST}
-    {4062664800 46800 1 NZDT}
-    {4078994400 43200 0 NZST}
-    {4094114400 46800 1 NZDT}
+if {![info exists TZData(Pacific/Auckland)]} {
+    LoadTimeZoneFile Pacific/Auckland
 }
+set TZData(:Antarctica/McMurdo) $TZData(:Pacific/Auckland)
diff --git a/library/tzdata/Antarctica/Palmer b/library/tzdata/Antarctica/Palmer
index 601a684..2c43861 100644
--- a/library/tzdata/Antarctica/Palmer
+++ b/library/tzdata/Antarctica/Palmer
@@ -28,10 +28,10 @@ set TZData(:Antarctica/Palmer) {
     {545194800 -14400 0 CLT}
     {560923200 -10800 1 CLST}
     {574225200 -14400 0 CLT}
-    {591768000 -10800 1 CLST}
+    {592372800 -10800 1 CLST}
     {605674800 -14400 0 CLT}
     {624427200 -10800 1 CLST}
-    {637729200 -14400 0 CLT}
+    {637124400 -14400 0 CLT}
     {653457600 -10800 1 CLST}
     {668574000 -14400 0 CLT}
     {687326400 -10800 1 CLST}
@@ -77,178 +77,9 @@ set TZData(:Antarctica/Palmer) {
     {1313899200 -10800 1 CLST}
     {1335668400 -14400 0 CLT}
     {1346558400 -10800 1 CLST}
-    {1362884400 -14400 0 CLT}
-    {1381636800 -10800 1 CLST}
-    {1394334000 -14400 0 CLT}
-    {1413086400 -10800 1 CLST}
-    {1426388400 -14400 0 CLT}
-    {1444536000 -10800 1 CLST}
-    {1457838000 -14400 0 CLT}
-    {1475985600 -10800 1 CLST}
-    {1489287600 -14400 0 CLT}
-    {1508040000 -10800 1 CLST}
-    {1520737200 -14400 0 CLT}
-    {1539489600 -10800 1 CLST}
-    {1552186800 -14400 0 CLT}
-    {1570939200 -10800 1 CLST}
-    {1584241200 -14400 0 CLT}
-    {1602388800 -10800 1 CLST}
-    {1615690800 -14400 0 CLT}
-    {1633838400 -10800 1 CLST}
-    {1647140400 -14400 0 CLT}
-    {1665288000 -10800 1 CLST}
-    {1678590000 -14400 0 CLT}
-    {1697342400 -10800 1 CLST}
-    {1710039600 -14400 0 CLT}
-    {1728792000 -10800 1 CLST}
-    {1741489200 -14400 0 CLT}
-    {1760241600 -10800 1 CLST}
-    {1773543600 -14400 0 CLT}
-    {1791691200 -10800 1 CLST}
-    {1804993200 -14400 0 CLT}
-    {1823140800 -10800 1 CLST}
-    {1836442800 -14400 0 CLT}
-    {1855195200 -10800 1 CLST}
-    {1867892400 -14400 0 CLT}
-    {1886644800 -10800 1 CLST}
-    {1899342000 -14400 0 CLT}
-    {1918094400 -10800 1 CLST}
-    {1930791600 -14400 0 CLT}
-    {1949544000 -10800 1 CLST}
-    {1962846000 -14400 0 CLT}
-    {1980993600 -10800 1 CLST}
-    {1994295600 -14400 0 CLT}
-    {2012443200 -10800 1 CLST}
-    {2025745200 -14400 0 CLT}
-    {2044497600 -10800 1 CLST}
-    {2057194800 -14400 0 CLT}
-    {2075947200 -10800 1 CLST}
-    {2088644400 -14400 0 CLT}
-    {2107396800 -10800 1 CLST}
-    {2120698800 -14400 0 CLT}
-    {2138846400 -10800 1 CLST}
-    {2152148400 -14400 0 CLT}
-    {2170296000 -10800 1 CLST}
-    {2183598000 -14400 0 CLT}
-    {2201745600 -10800 1 CLST}
-    {2215047600 -14400 0 CLT}
-    {2233800000 -10800 1 CLST}
-    {2246497200 -14400 0 CLT}
-    {2265249600 -10800 1 CLST}
-    {2277946800 -14400 0 CLT}
-    {2296699200 -10800 1 CLST}
-    {2310001200 -14400 0 CLT}
-    {2328148800 -10800 1 CLST}
-    {2341450800 -14400 0 CLT}
-    {2359598400 -10800 1 CLST}
-    {2372900400 -14400 0 CLT}
-    {2391652800 -10800 1 CLST}
-    {2404350000 -14400 0 CLT}
-    {2423102400 -10800 1 CLST}
-    {2435799600 -14400 0 CLT}
-    {2454552000 -10800 1 CLST}
-    {2467854000 -14400 0 CLT}
-    {2486001600 -10800 1 CLST}
-    {2499303600 -14400 0 CLT}
-    {2517451200 -10800 1 CLST}
-    {2530753200 -14400 0 CLT}
-    {2548900800 -10800 1 CLST}
-    {2562202800 -14400 0 CLT}
-    {2580955200 -10800 1 CLST}
-    {2593652400 -14400 0 CLT}
-    {2612404800 -10800 1 CLST}
-    {2625102000 -14400 0 CLT}
-    {2643854400 -10800 1 CLST}
-    {2657156400 -14400 0 CLT}
-    {2675304000 -10800 1 CLST}
-    {2688606000 -14400 0 CLT}
-    {2706753600 -10800 1 CLST}
-    {2720055600 -14400 0 CLT}
-    {2738808000 -10800 1 CLST}
-    {2751505200 -14400 0 CLT}
-    {2770257600 -10800 1 CLST}
-    {2782954800 -14400 0 CLT}
-    {2801707200 -10800 1 CLST}
-    {2814404400 -14400 0 CLT}
-    {2833156800 -10800 1 CLST}
-    {2846458800 -14400 0 CLT}
-    {2864606400 -10800 1 CLST}
-    {2877908400 -14400 0 CLT}
-    {2896056000 -10800 1 CLST}
-    {2909358000 -14400 0 CLT}
-    {2928110400 -10800 1 CLST}
-    {2940807600 -14400 0 CLT}
-    {2959560000 -10800 1 CLST}
-    {2972257200 -14400 0 CLT}
-    {2991009600 -10800 1 CLST}
-    {3004311600 -14400 0 CLT}
-    {3022459200 -10800 1 CLST}
-    {3035761200 -14400 0 CLT}
-    {3053908800 -10800 1 CLST}
-    {3067210800 -14400 0 CLT}
-    {3085358400 -10800 1 CLST}
-    {3098660400 -14400 0 CLT}
-    {3117412800 -10800 1 CLST}
-    {3130110000 -14400 0 CLT}
-    {3148862400 -10800 1 CLST}
-    {3161559600 -14400 0 CLT}
-    {3180312000 -10800 1 CLST}
-    {3193614000 -14400 0 CLT}
-    {3211761600 -10800 1 CLST}
-    {3225063600 -14400 0 CLT}
-    {3243211200 -10800 1 CLST}
-    {3256513200 -14400 0 CLT}
-    {3275265600 -10800 1 CLST}
-    {3287962800 -14400 0 CLT}
-    {3306715200 -10800 1 CLST}
-    {3319412400 -14400 0 CLT}
-    {3338164800 -10800 1 CLST}
-    {3351466800 -14400 0 CLT}
-    {3369614400 -10800 1 CLST}
-    {3382916400 -14400 0 CLT}
-    {3401064000 -10800 1 CLST}
-    {3414366000 -14400 0 CLT}
-    {3432513600 -10800 1 CLST}
-    {3445815600 -14400 0 CLT}
-    {3464568000 -10800 1 CLST}
-    {3477265200 -14400 0 CLT}
-    {3496017600 -10800 1 CLST}
-    {3508714800 -14400 0 CLT}
-    {3527467200 -10800 1 CLST}
-    {3540769200 -14400 0 CLT}
-    {3558916800 -10800 1 CLST}
-    {3572218800 -14400 0 CLT}
-    {3590366400 -10800 1 CLST}
-    {3603668400 -14400 0 CLT}
-    {3622420800 -10800 1 CLST}
-    {3635118000 -14400 0 CLT}
-    {3653870400 -10800 1 CLST}
-    {3666567600 -14400 0 CLT}
-    {3685320000 -10800 1 CLST}
-    {3698017200 -14400 0 CLT}
-    {3716769600 -10800 1 CLST}
-    {3730071600 -14400 0 CLT}
-    {3748219200 -10800 1 CLST}
-    {3761521200 -14400 0 CLT}
-    {3779668800 -10800 1 CLST}
-    {3792970800 -14400 0 CLT}
-    {3811723200 -10800 1 CLST}
-    {3824420400 -14400 0 CLT}
-    {3843172800 -10800 1 CLST}
-    {3855870000 -14400 0 CLT}
-    {3874622400 -10800 1 CLST}
-    {3887924400 -14400 0 CLT}
-    {3906072000 -10800 1 CLST}
-    {3919374000 -14400 0 CLT}
-    {3937521600 -10800 1 CLST}
-    {3950823600 -14400 0 CLT}
-    {3968971200 -10800 1 CLST}
-    {3982273200 -14400 0 CLT}
-    {4001025600 -10800 1 CLST}
-    {4013722800 -14400 0 CLT}
-    {4032475200 -10800 1 CLST}
-    {4045172400 -14400 0 CLT}
-    {4063924800 -10800 1 CLST}
-    {4077226800 -14400 0 CLT}
-    {4095374400 -10800 1 CLST}
+    {1367118000 -14400 0 CLT}
+    {1378612800 -10800 1 CLST}
+    {1398567600 -14400 0 CLT}
+    {1410062400 -10800 1 CLST}
+    {1430017200 -10800 0 CLT}
 }
diff --git a/library/tzdata/Antarctica/South_Pole b/library/tzdata/Antarctica/South_Pole
index 34d0db1..544bde4 100644
--- a/library/tzdata/Antarctica/South_Pole
+++ b/library/tzdata/Antarctica/South_Pole
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(Antarctica/McMurdo)]} {
-    LoadTimeZoneFile Antarctica/McMurdo
+if {![info exists TZData(Pacific/Auckland)]} {
+    LoadTimeZoneFile Pacific/Auckland
 }
-set TZData(:Antarctica/South_Pole) $TZData(:Antarctica/McMurdo)
+set TZData(:Antarctica/South_Pole) $TZData(:Pacific/Auckland)
diff --git a/library/tzdata/Antarctica/Troll b/library/tzdata/Antarctica/Troll
new file mode 100644
index 0000000..7d2b042
--- /dev/null
+++ b/library/tzdata/Antarctica/Troll
@@ -0,0 +1,196 @@
+# created by tools/tclZIC.tcl - do not edit
+
+set TZData(:Antarctica/Troll) {
+    {-9223372036854775808 0 0 zzz}
+    {1108166400 0 0 UTC}
+    {1111885200 7200 1 CEST}
+    {1130634000 0 0 UTC}
+    {1143334800 7200 1 CEST}
+    {1162083600 0 0 UTC}
+    {1174784400 7200 1 CEST}
+    {1193533200 0 0 UTC}
+    {1206838800 7200 1 CEST}
+    {1224982800 0 0 UTC}
+    {1238288400 7200 1 CEST}
+    {1256432400 0 0 UTC}
+    {1269738000 7200 1 CEST}
+    {1288486800 0 0 UTC}
+    {1301187600 7200 1 CEST}
+    {1319936400 0 0 UTC}
+    {1332637200 7200 1 CEST}
+    {1351386000 0 0 UTC}
+    {1364691600 7200 1 CEST}
+    {1382835600 0 0 UTC}
+    {1396141200 7200 1 CEST}
+    {1414285200 0 0 UTC}
+    {1427590800 7200 1 CEST}
+    {1445734800 0 0 UTC}
+    {1459040400 7200 1 CEST}
+    {1477789200 0 0 UTC}
+    {1490490000 7200 1 CEST}
+    {1509238800 0 0 UTC}
+    {1521939600 7200 1 CEST}
+    {1540688400 0 0 UTC}
+    {1553994000 7200 1 CEST}
+    {1572138000 0 0 UTC}
+    {1585443600 7200 1 CEST}
+    {1603587600 0 0 UTC}
+    {1616893200 7200 1 CEST}
+    {1635642000 0 0 UTC}
+    {1648342800 7200 1 CEST}
+    {1667091600 0 0 UTC}
+    {1679792400 7200 1 CEST}
+    {1698541200 0 0 UTC}
+    {1711846800 7200 1 CEST}
+    {1729990800 0 0 UTC}
+    {1743296400 7200 1 CEST}
+    {1761440400 0 0 UTC}
+    {1774746000 7200 1 CEST}
+    {1792890000 0 0 UTC}
+    {1806195600 7200 1 CEST}
+    {1824944400 0 0 UTC}
+    {1837645200 7200 1 CEST}
+    {1856394000 0 0 UTC}
+    {1869094800 7200 1 CEST}
+    {1887843600 0 0 UTC}
+    {1901149200 7200 1 CEST}
+    {1919293200 0 0 UTC}
+    {1932598800 7200 1 CEST}
+    {1950742800 0 0 UTC}
+    {1964048400 7200 1 CEST}
+    {1982797200 0 0 UTC}
+    {1995498000 7200 1 CEST}
+    {2014246800 0 0 UTC}
+    {2026947600 7200 1 CEST}
+    {2045696400 0 0 UTC}
+    {2058397200 7200 1 CEST}
+    {2077146000 0 0 UTC}
+    {2090451600 7200 1 CEST}
+    {2108595600 0 0 UTC}
+    {2121901200 7200 1 CEST}
+    {2140045200 0 0 UTC}
+    {2153350800 7200 1 CEST}
+    {2172099600 0 0 UTC}
+    {2184800400 7200 1 CEST}
+    {2203549200 0 0 UTC}
+    {2216250000 7200 1 CEST}
+    {2234998800 0 0 UTC}
+    {2248304400 7200 1 CEST}
+    {2266448400 0 0 UTC}
+    {2279754000 7200 1 CEST}
+    {2297898000 0 0 UTC}
+    {2311203600 7200 1 CEST}
+    {2329347600 0 0 UTC}
+    {2342653200 7200 1 CEST}
+    {2361402000 0 0 UTC}
+    {2374102800 7200 1 CEST}
+    {2392851600 0 0 UTC}
+    {2405552400 7200 1 CEST}
+    {2424301200 0 0 UTC}
+    {2437606800 7200 1 CEST}
+    {2455750800 0 0 UTC}
+    {2469056400 7200 1 CEST}
+    {2487200400 0 0 UTC}
+    {2500506000 7200 1 CEST}
+    {2519254800 0 0 UTC}
+    {2531955600 7200 1 CEST}
+    {2550704400 0 0 UTC}
+    {2563405200 7200 1 CEST}
+    {2582154000 0 0 UTC}
+    {2595459600 7200 1 CEST}
+    {2613603600 0 0 UTC}
+    {2626909200 7200 1 CEST}
+    {2645053200 0 0 UTC}
+    {2658358800 7200 1 CEST}
+    {2676502800 0 0 UTC}
+    {2689808400 7200 1 CEST}
+    {2708557200 0 0 UTC}
+    {2721258000 7200 1 CEST}
+    {2740006800 0 0 UTC}
+    {2752707600 7200 1 CEST}
+    {2771456400 0 0 UTC}
+    {2784762000 7200 1 CEST}
+    {2802906000 0 0 UTC}
+    {2816211600 7200 1 CEST}
+    {2834355600 0 0 UTC}
+    {2847661200 7200 1 CEST}
+    {2866410000 0 0 UTC}
+    {2879110800 7200 1 CEST}
+    {2897859600 0 0 UTC}
+    {2910560400 7200 1 CEST}
+    {2929309200 0 0 UTC}
+    {2942010000 7200 1 CEST}
+    {2960758800 0 0 UTC}
+    {2974064400 7200 1 CEST}
+    {2992208400 0 0 UTC}
+    {3005514000 7200 1 CEST}
+    {3023658000 0 0 UTC}
+    {3036963600 7200 1 CEST}
+    {3055712400 0 0 UTC}
+    {3068413200 7200 1 CEST}
+    {3087162000 0 0 UTC}
+    {3099862800 7200 1 CEST}
+    {3118611600 0 0 UTC}
+    {3131917200 7200 1 CEST}
+    {3150061200 0 0 UTC}
+    {3163366800 7200 1 CEST}
+    {3181510800 0 0 UTC}
+    {3194816400 7200 1 CEST}
+    {3212960400 0 0 UTC}
+    {3226266000 7200 1 CEST}
+    {3245014800 0 0 UTC}
+    {3257715600 7200 1 CEST}
+    {3276464400 0 0 UTC}
+    {3289165200 7200 1 CEST}
+    {3307914000 0 0 UTC}
+    {3321219600 7200 1 CEST}
+    {3339363600 0 0 UTC}
+    {3352669200 7200 1 CEST}
+    {3370813200 0 0 UTC}
+    {3384118800 7200 1 CEST}
+    {3402867600 0 0 UTC}
+    {3415568400 7200 1 CEST}
+    {3434317200 0 0 UTC}
+    {3447018000 7200 1 CEST}
+    {3465766800 0 0 UTC}
+    {3479072400 7200 1 CEST}
+    {3497216400 0 0 UTC}
+    {3510522000 7200 1 CEST}
+    {3528666000 0 0 UTC}
+    {3541971600 7200 1 CEST}
+    {3560115600 0 0 UTC}
+    {3573421200 7200 1 CEST}
+    {3592170000 0 0 UTC}
+    {3604870800 7200 1 CEST}
+    {3623619600 0 0 UTC}
+    {3636320400 7200 1 CEST}
+    {3655069200 0 0 UTC}
+    {3668374800 7200 1 CEST}
+    {3686518800 0 0 UTC}
+    {3699824400 7200 1 CEST}
+    {3717968400 0 0 UTC}
+    {3731274000 7200 1 CEST}
+    {3750022800 0 0 UTC}
+    {3762723600 7200 1 CEST}
+    {3781472400 0 0 UTC}
+    {3794173200 7200 1 CEST}
+    {3812922000 0 0 UTC}
+    {3825622800 7200 1 CEST}
+    {3844371600 0 0 UTC}
+    {3857677200 7200 1 CEST}
+    {3875821200 0 0 UTC}
+    {3889126800 7200 1 CEST}
+    {3907270800 0 0 UTC}
+    {3920576400 7200 1 CEST}
+    {3939325200 0 0 UTC}
+    {3952026000 7200 1 CEST}
+    {3970774800 0 0 UTC}
+    {3983475600 7200 1 CEST}
+    {4002224400 0 0 UTC}
+    {4015530000 7200 1 CEST}
+    {4033674000 0 0 UTC}
+    {4046979600 7200 1 CEST}
+    {4065123600 0 0 UTC}
+    {4078429200 7200 1 CEST}
+    {4096573200 0 0 UTC}
+}
diff --git a/library/tzdata/Asia/Aden b/library/tzdata/Asia/Aden
index e939235..5c5515e 100644
--- a/library/tzdata/Asia/Aden
+++ b/library/tzdata/Asia/Aden
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Asia/Aden) {
-    {-9223372036854775808 10848 0 LMT}
-    {-631162848 10800 0 AST}
+if {![info exists TZData(Asia/Riyadh)]} {
+    LoadTimeZoneFile Asia/Riyadh
 }
+set TZData(:Asia/Aden) $TZData(:Asia/Riyadh)
diff --git a/library/tzdata/Asia/Amman b/library/tzdata/Asia/Amman
index bf30508..c2f6904 100644
--- a/library/tzdata/Asia/Amman
+++ b/library/tzdata/Asia/Amman
@@ -70,9 +70,7 @@ set TZData(:Asia/Amman) {
     {1301608800 10800 1 EEST}
     {1319752800 7200 0 EET}
     {1333058400 10800 1 EEST}
-    {1351202400 7200 0 EET}
-    {1364508000 10800 1 EEST}
-    {1382652000 7200 0 EET}
+    {1387486800 7200 0 EET}
     {1395957600 10800 1 EEST}
     {1414706400 7200 0 EET}
     {1427407200 10800 1 EEST}
diff --git a/library/tzdata/Asia/Bahrain b/library/tzdata/Asia/Bahrain
index d4b7d2c..aab5b7d 100644
--- a/library/tzdata/Asia/Bahrain
+++ b/library/tzdata/Asia/Bahrain
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Asia/Bahrain) {
-    {-9223372036854775808 12140 0 LMT}
-    {-1577935340 14400 0 GST}
-    {76190400 10800 0 AST}
+if {![info exists TZData(Asia/Qatar)]} {
+    LoadTimeZoneFile Asia/Qatar
 }
+set TZData(:Asia/Bahrain) $TZData(:Asia/Qatar)
diff --git a/library/tzdata/Asia/Chita b/library/tzdata/Asia/Chita
new file mode 100644
index 0000000..eabce7f
--- /dev/null
+++ b/library/tzdata/Asia/Chita
@@ -0,0 +1,71 @@
+# created by tools/tclZIC.tcl - do not edit
+
+set TZData(:Asia/Chita) {
+    {-9223372036854775808 27232 0 LMT}
+    {-1579419232 28800 0 YAKT}
+    {-1247558400 32400 0 YAKMMTT}
+    {354898800 36000 1 YAKST}
+    {370706400 32400 0 YAKT}
+    {386434800 36000 1 YAKST}
+    {402242400 32400 0 YAKT}
+    {417970800 36000 1 YAKST}
+    {433778400 32400 0 YAKT}
+    {449593200 36000 1 YAKST}
+    {465325200 32400 0 YAKT}
+    {481050000 36000 1 YAKST}
+    {496774800 32400 0 YAKT}
+    {512499600 36000 1 YAKST}
+    {528224400 32400 0 YAKT}
+    {543949200 36000 1 YAKST}
+    {559674000 32400 0 YAKT}
+    {575398800 36000 1 YAKST}
+    {591123600 32400 0 YAKT}
+    {606848400 36000 1 YAKST}
+    {622573200 32400 0 YAKT}
+    {638298000 36000 1 YAKST}
+    {654627600 32400 0 YAKT}
+    {670352400 28800 0 YAKMMTT}
+    {670356000 32400 1 YAKST}
+    {686080800 28800 0 YAKT}
+    {695757600 32400 0 YAKMMTT}
+    {701791200 36000 1 YAKST}
+    {717512400 32400 0 YAKT}
+    {733251600 36000 1 YAKST}
+    {748976400 32400 0 YAKT}
+    {764701200 36000 1 YAKST}
+    {780426000 32400 0 YAKT}
+    {796150800 36000 1 YAKST}
+    {811875600 32400 0 YAKT}
+    {828205200 36000 1 YAKST}
+    {846349200 32400 0 YAKT}
+    {859654800 36000 1 YAKST}
+    {877798800 32400 0 YAKT}
+    {891104400 36000 1 YAKST}
+    {909248400 32400 0 YAKT}
+    {922554000 36000 1 YAKST}
+    {941302800 32400 0 YAKT}
+    {954003600 36000 1 YAKST}
+    {972752400 32400 0 YAKT}
+    {985453200 36000 1 YAKST}
+    {1004202000 32400 0 YAKT}
+    {1017507600 36000 1 YAKST}
+    {1035651600 32400 0 YAKT}
+    {1048957200 36000 1 YAKST}
+    {1067101200 32400 0 YAKT}
+    {1080406800 36000 1 YAKST}
+    {1099155600 32400 0 YAKT}
+    {1111856400 36000 1 YAKST}
+    {1130605200 32400 0 YAKT}
+    {1143306000 36000 1 YAKST}
+    {1162054800 32400 0 YAKT}
+    {1174755600 36000 1 YAKST}
+    {1193504400 32400 0 YAKT}
+    {1206810000 36000 1 YAKST}
+    {1224954000 32400 0 YAKT}
+    {1238259600 36000 1 YAKST}
+    {1256403600 32400 0 YAKT}
+    {1269709200 36000 1 YAKST}
+    {1288458000 32400 0 YAKT}
+    {1301158800 36000 0 YAKT}
+    {1414252800 28800 0 IRKT}
+}
diff --git a/library/tzdata/Asia/Choibalsan b/library/tzdata/Asia/Choibalsan
index 3d42617..2bcf7f7 100644
--- a/library/tzdata/Asia/Choibalsan
+++ b/library/tzdata/Asia/Choibalsan
@@ -48,4 +48,175 @@ set TZData(:Asia/Choibalsan) {
     {1127491200 32400 0 CHOT}
     {1143219600 36000 1 CHOST}
     {1159545600 32400 0 CHOT}
+    {1206889200 28800 0 CHOT}
+    {1427479200 32400 1 CHOST}
+    {1443193200 28800 0 CHOT}
+    {1458928800 32400 1 CHOST}
+    {1474642800 28800 0 CHOT}
+    {1490378400 32400 1 CHOST}
+    {1506697200 28800 0 CHOT}
+    {1522432800 32400 1 CHOST}
+    {1538146800 28800 0 CHOT}
+    {1553882400 32400 1 CHOST}
+    {1569596400 28800 0 CHOT}
+    {1585332000 32400 1 CHOST}
+    {1601046000 28800 0 CHOT}
+    {1616781600 32400 1 CHOST}
+    {1632495600 28800 0 CHOT}
+    {1648231200 32400 1 CHOST}
+    {1663945200 28800 0 CHOT}
+    {1679680800 32400 1 CHOST}
+    {1695999600 28800 0 CHOT}
+    {1711735200 32400 1 CHOST}
+    {1727449200 28800 0 CHOT}
+    {1743184800 32400 1 CHOST}
+    {1758898800 28800 0 CHOT}
+    {1774634400 32400 1 CHOST}
+    {1790348400 28800 0 CHOT}
+    {1806084000 32400 1 CHOST}
+    {1821798000 28800 0 CHOT}
+    {1837533600 32400 1 CHOST}
+    {1853852400 28800 0 CHOT}
+    {1869588000 32400 1 CHOST}
+    {1885302000 28800 0 CHOT}
+    {1901037600 32400 1 CHOST}
+    {1916751600 28800 0 CHOT}
+    {1932487200 32400 1 CHOST}
+    {1948201200 28800 0 CHOT}
+    {1963936800 32400 1 CHOST}
+    {1979650800 28800 0 CHOT}
+    {1995386400 32400 1 CHOST}
+    {2011100400 28800 0 CHOT}
+    {2026836000 32400 1 CHOST}
+    {2043154800 28800 0 CHOT}
+    {2058890400 32400 1 CHOST}
+    {2074604400 28800 0 CHOT}
+    {2090340000 32400 1 CHOST}
+    {2106054000 28800 0 CHOT}
+    {2121789600 32400 1 CHOST}
+    {2137503600 28800 0 CHOT}
+    {2153239200 32400 1 CHOST}
+    {2168953200 28800 0 CHOT}
+    {2184688800 32400 1 CHOST}
+    {2200402800 28800 0 CHOT}
+    {2216743200 32400 1 CHOST}
+    {2232457200 28800 0 CHOT}
+    {2248192800 32400 1 CHOST}
+    {2263906800 28800 0 CHOT}
+    {2279642400 32400 1 CHOST}
+    {2295356400 28800 0 CHOT}
+    {2311092000 32400 1 CHOST}
+    {2326806000 28800 0 CHOT}
+    {2342541600 32400 1 CHOST}
+    {2358255600 28800 0 CHOT}
+    {2373991200 32400 1 CHOST}
+    {2390310000 28800 0 CHOT}
+    {2406045600 32400 1 CHOST}
+    {2421759600 28800 0 CHOT}
+    {2437495200 32400 1 CHOST}
+    {2453209200 28800 0 CHOT}
+    {2468944800 32400 1 CHOST}
+    {2484658800 28800 0 CHOT}
+    {2500394400 32400 1 CHOST}
+    {2516108400 28800 0 CHOT}
+    {2531844000 32400 1 CHOST}
+    {2547558000 28800 0 CHOT}
+    {2563293600 32400 1 CHOST}
+    {2579612400 28800 0 CHOT}
+    {2595348000 32400 1 CHOST}
+    {2611062000 28800 0 CHOT}
+    {2626797600 32400 1 CHOST}
+    {2642511600 28800 0 CHOT}
+    {2658247200 32400 1 CHOST}
+    {2673961200 28800 0 CHOT}
+    {2689696800 32400 1 CHOST}
+    {2705410800 28800 0 CHOT}
+    {2721146400 32400 1 CHOST}
+    {2737465200 28800 0 CHOT}
+    {2753200800 32400 1 CHOST}
+    {2768914800 28800 0 CHOT}
+    {2784650400 32400 1 CHOST}
+    {2800364400 28800 0 CHOT}
+    {2816100000 32400 1 CHOST}
+    {2831814000 28800 0 CHOT}
+    {2847549600 32400 1 CHOST}
+    {2863263600 28800 0 CHOT}
+    {2878999200 32400 1 CHOST}
+    {2894713200 28800 0 CHOT}
+    {2910448800 32400 1 CHOST}
+    {2926767600 28800 0 CHOT}
+    {2942503200 32400 1 CHOST}
+    {2958217200 28800 0 CHOT}
+    {2973952800 32400 1 CHOST}
+    {2989666800 28800 0 CHOT}
+    {3005402400 32400 1 CHOST}
+    {3021116400 28800 0 CHOT}
+    {3036852000 32400 1 CHOST}
+    {3052566000 28800 0 CHOT}
+    {3068301600 32400 1 CHOST}
+    {3084015600 28800 0 CHOT}
+    {3100356000 32400 1 CHOST}
+    {3116070000 28800 0 CHOT}
+    {3131805600 32400 1 CHOST}
+    {3147519600 28800 0 CHOT}
+    {3163255200 32400 1 CHOST}
+    {3178969200 28800 0 CHOT}
+    {3194704800 32400 1 CHOST}
+    {3210418800 28800 0 CHOT}
+    {3226154400 32400 1 CHOST}
+    {3241868400 28800 0 CHOT}
+    {3257604000 32400 1 CHOST}
+    {3273922800 28800 0 CHOT}
+    {3289658400 32400 1 CHOST}
+    {3305372400 28800 0 CHOT}
+    {3321108000 32400 1 CHOST}
+    {3336822000 28800 0 CHOT}
+    {3352557600 32400 1 CHOST}
+    {3368271600 28800 0 CHOT}
+    {3384007200 32400 1 CHOST}
+    {3399721200 28800 0 CHOT}
+    {3415456800 32400 1 CHOST}
+    {3431170800 28800 0 CHOT}
+    {3446906400 32400 1 CHOST}
+    {3463225200 28800 0 CHOT}
+    {3478960800 32400 1 CHOST}
+    {3494674800 28800 0 CHOT}
+    {3510410400 32400 1 CHOST}
+    {3526124400 28800 0 CHOT}
+    {3541860000 32400 1 CHOST}
+    {3557574000 28800 0 CHOT}
+    {3573309600 32400 1 CHOST}
+    {3589023600 28800 0 CHOT}
+    {3604759200 32400 1 CHOST}
+    {3621078000 28800 0 CHOT}
+    {3636813600 32400 1 CHOST}
+    {3652527600 28800 0 CHOT}
+    {3668263200 32400 1 CHOST}
+    {3683977200 28800 0 CHOT}
+    {3699712800 32400 1 CHOST}
+    {3715426800 28800 0 CHOT}
+    {3731162400 32400 1 CHOST}
+    {3746876400 28800 0 CHOT}
+    {3762612000 32400 1 CHOST}
+    {3778326000 28800 0 CHOT}
+    {3794061600 32400 1 CHOST}
+    {3810380400 28800 0 CHOT}
+    {3826116000 32400 1 CHOST}
+    {3841830000 28800 0 CHOT}
+    {3857565600 32400 1 CHOST}
+    {3873279600 28800 0 CHOT}
+    {3889015200 32400 1 CHOST}
+    {3904729200 28800 0 CHOT}
+    {3920464800 32400 1 CHOST}
+    {3936178800 28800 0 CHOT}
+    {3951914400 32400 1 CHOST}
+    {3967628400 28800 0 CHOT}
+    {3983968800 32400 1 CHOST}
+    {3999682800 28800 0 CHOT}
+    {4015418400 32400 1 CHOST}
+    {4031132400 28800 0 CHOT}
+    {4046868000 32400 1 CHOST}
+    {4062582000 28800 0 CHOT}
+    {4078317600 32400 1 CHOST}
+    {4094031600 28800 0 CHOT}
 }
diff --git a/library/tzdata/Asia/Chongqing b/library/tzdata/Asia/Chongqing
index eff3536..ba515fe 100644
--- a/library/tzdata/Asia/Chongqing
+++ b/library/tzdata/Asia/Chongqing
@@ -1,19 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Asia/Chongqing) {
-    {-9223372036854775808 25580 0 LMT}
-    {-1325487980 25200 0 LONT}
-    {325962000 28800 0 CST}
-    {515520000 32400 1 CDT}
-    {527007600 28800 0 CST}
-    {545155200 32400 1 CDT}
-    {558457200 28800 0 CST}
-    {576604800 32400 1 CDT}
-    {589906800 28800 0 CST}
-    {608659200 32400 1 CDT}
-    {621961200 28800 0 CST}
-    {640108800 32400 1 CDT}
-    {653410800 28800 0 CST}
-    {671558400 32400 1 CDT}
-    {684860400 28800 0 CST}
+if {![info exists TZData(Asia/Shanghai)]} {
+    LoadTimeZoneFile Asia/Shanghai
 }
+set TZData(:Asia/Chongqing) $TZData(:Asia/Shanghai)
diff --git a/library/tzdata/Asia/Chungking b/library/tzdata/Asia/Chungking
index f10d8a1..fa857dd 100644
--- a/library/tzdata/Asia/Chungking
+++ b/library/tzdata/Asia/Chungking
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(Asia/Chongqing)]} {
-    LoadTimeZoneFile Asia/Chongqing
+if {![info exists TZData(Asia/Shanghai)]} {
+    LoadTimeZoneFile Asia/Shanghai
 }
-set TZData(:Asia/Chungking) $TZData(:Asia/Chongqing)
+set TZData(:Asia/Chungking) $TZData(:Asia/Shanghai)
diff --git a/library/tzdata/Asia/Dhaka b/library/tzdata/Asia/Dhaka
index e0c270d..6e8a334 100644
--- a/library/tzdata/Asia/Dhaka
+++ b/library/tzdata/Asia/Dhaka
@@ -10,5 +10,5 @@ set TZData(:Asia/Dhaka) {
     {38772000 21600 0 BDT}
     {1230746400 21600 0 BDT}
     {1245430800 25200 1 BDST}
-    {1262278740 21600 0 BDT}
+    {1262278800 21600 0 BDT}
 }
diff --git a/library/tzdata/Asia/Dili b/library/tzdata/Asia/Dili
index 36910fd..f783557 100644
--- a/library/tzdata/Asia/Dili
+++ b/library/tzdata/Asia/Dili
@@ -5,6 +5,6 @@ set TZData(:Asia/Dili) {
     {-1830414140 28800 0 TLT}
     {-879152400 32400 0 JST}
     {-766054800 32400 0 TLT}
-    {199897200 28800 0 CIT}
+    {199897200 28800 0 WITA}
     {969120000 32400 0 TLT}
 }
diff --git a/library/tzdata/Asia/Gaza b/library/tzdata/Asia/Gaza
index 2094969..805b6b7 100644
--- a/library/tzdata/Asia/Gaza
+++ b/library/tzdata/Asia/Gaza
@@ -46,8 +46,8 @@ set TZData(:Asia/Gaza) {
     {526424400 7200 0 IST}
     {545436000 10800 1 IDT}
     {558478800 7200 0 IST}
-    {576540000 10800 1 IDT}
-    {589237200 7200 0 IST}
+    {576626400 10800 1 IDT}
+    {589323600 7200 0 IST}
     {609890400 10800 1 IDT}
     {620773200 7200 0 IST}
     {638316000 10800 1 IDT}
@@ -88,14 +88,191 @@ set TZData(:Asia/Gaza) {
     {1158872400 7200 0 EET}
     {1175378400 10800 1 EEST}
     {1189638000 7200 0 EET}
-    {1207000800 10800 1 EEST}
-    {1219957200 7200 0 EET}
+    {1206655200 10800 1 EEST}
+    {1219960800 7200 0 EET}
+    {1220220000 7200 0 EET}
     {1238104800 10800 1 EEST}
-    {1252018800 7200 0 EET}
-    {1269640860 10800 1 EEST}
+    {1252015200 7200 0 EET}
+    {1262296800 7200 0 EET}
+    {1269640860 10800 0 EEST}
     {1281474000 7200 0 EET}
-    {1301738460 10800 1 EEST}
-    {1312146000 7200 0 EET}
+    {1301608860 10800 1 EEST}
+    {1312149600 7200 0 EET}
+    {1325368800 7200 0 EET}
     {1333058400 10800 1 EEST}
-    {1348779600 7200 0 EET}
+    {1348178400 7200 0 EET}
+    {1364508000 10800 1 EEST}
+    {1380229200 7200 0 EET}
+    {1395957600 10800 1 EEST}
+    {1414098000 7200 0 EET}
+    {1427493600 10800 1 EEST}
+    {1445547600 7200 0 EET}
+    {1458943200 10800 1 EEST}
+    {1476997200 7200 0 EET}
+    {1490997600 10800 1 EEST}
+    {1509051600 7200 0 EET}
+    {1522447200 10800 1 EEST}
+    {1540501200 7200 0 EET}
+    {1553896800 10800 1 EEST}
+    {1571950800 7200 0 EET}
+    {1585346400 10800 1 EEST}
+    {1603400400 7200 0 EET}
+    {1616796000 10800 1 EEST}
+    {1634850000 7200 0 EET}
+    {1648245600 10800 1 EEST}
+    {1666299600 7200 0 EET}
+    {1680300000 10800 1 EEST}
+    {1698354000 7200 0 EET}
+    {1711749600 10800 1 EEST}
+    {1729803600 7200 0 EET}
+    {1743199200 10800 1 EEST}
+    {1761253200 7200 0 EET}
+    {1774648800 10800 1 EEST}
+    {1792702800 7200 0 EET}
+    {1806098400 10800 1 EEST}
+    {1824152400 7200 0 EET}
+    {1838152800 10800 1 EEST}
+    {1856206800 7200 0 EET}
+    {1869602400 10800 1 EEST}
+    {1887656400 7200 0 EET}
+    {1901052000 10800 1 EEST}
+    {1919106000 7200 0 EET}
+    {1932501600 10800 1 EEST}
+    {1950555600 7200 0 EET}
+    {1963951200 10800 1 EEST}
+    {1982005200 7200 0 EET}
+    {1995400800 10800 1 EEST}
+    {2013454800 7200 0 EET}
+    {2027455200 10800 1 EEST}
+    {2045509200 7200 0 EET}
+    {2058904800 10800 1 EEST}
+    {2076958800 7200 0 EET}
+    {2090354400 10800 1 EEST}
+    {2108408400 7200 0 EET}
+    {2121804000 10800 1 EEST}
+    {2139858000 7200 0 EET}
+    {2153253600 10800 1 EEST}
+    {2171307600 7200 0 EET}
+    {2184703200 10800 1 EEST}
+    {2202757200 7200 0 EET}
+    {2216757600 10800 1 EEST}
+    {2234811600 7200 0 EET}
+    {2248207200 10800 1 EEST}
+    {2266261200 7200 0 EET}
+    {2279656800 10800 1 EEST}
+    {2297710800 7200 0 EET}
+    {2311106400 10800 1 EEST}
+    {2329160400 7200 0 EET}
+    {2342556000 10800 1 EEST}
+    {2360610000 7200 0 EET}
+    {2374610400 10800 1 EEST}
+    {2392664400 7200 0 EET}
+    {2406060000 10800 1 EEST}
+    {2424114000 7200 0 EET}
+    {2437509600 10800 1 EEST}
+    {2455563600 7200 0 EET}
+    {2468959200 10800 1 EEST}
+    {2487013200 7200 0 EET}
+    {2500408800 10800 1 EEST}
+    {2518462800 7200 0 EET}
+    {2531858400 10800 1 EEST}
+    {2549912400 7200 0 EET}
+    {2563912800 10800 1 EEST}
+    {2581966800 7200 0 EET}
+    {2595362400 10800 1 EEST}
+    {2613416400 7200 0 EET}
+    {2626812000 10800 1 EEST}
+    {2644866000 7200 0 EET}
+    {2658261600 10800 1 EEST}
+    {2676315600 7200 0 EET}
+    {2689711200 10800 1 EEST}
+    {2707765200 7200 0 EET}
+    {2721765600 10800 1 EEST}
+    {2739819600 7200 0 EET}
+    {2753215200 10800 1 EEST}
+    {2771269200 7200 0 EET}
+    {2784664800 10800 1 EEST}
+    {2802718800 7200 0 EET}
+    {2816114400 10800 1 EEST}
+    {2834168400 7200 0 EET}
+    {2847564000 10800 1 EEST}
+    {2865618000 7200 0 EET}
+    {2879013600 10800 1 EEST}
+    {2897067600 7200 0 EET}
+    {2911068000 10800 1 EEST}
+    {2929122000 7200 0 EET}
+    {2942517600 10800 1 EEST}
+    {2960571600 7200 0 EET}
+    {2973967200 10800 1 EEST}
+    {2992021200 7200 0 EET}
+    {3005416800 10800 1 EEST}
+    {3023470800 7200 0 EET}
+    {3036866400 10800 1 EEST}
+    {3054920400 7200 0 EET}
+    {3068316000 10800 1 EEST}
+    {3086370000 7200 0 EET}
+    {3100370400 10800 1 EEST}
+    {3118424400 7200 0 EET}
+    {3131820000 10800 1 EEST}
+    {3149874000 7200 0 EET}
+    {3163269600 10800 1 EEST}
+    {3181323600 7200 0 EET}
+    {3194719200 10800 1 EEST}
+    {3212773200 7200 0 EET}
+    {3226168800 10800 1 EEST}
+    {3244222800 7200 0 EET}
+    {3258223200 10800 1 EEST}
+    {3276277200 7200 0 EET}
+    {3289672800 10800 1 EEST}
+    {3307726800 7200 0 EET}
+    {3321122400 10800 1 EEST}
+    {3339176400 7200 0 EET}
+    {3352572000 10800 1 EEST}
+    {3370626000 7200 0 EET}
+    {3384021600 10800 1 EEST}
+    {3402075600 7200 0 EET}
+    {3415471200 10800 1 EEST}
+    {3433525200 7200 0 EET}
+    {3447525600 10800 1 EEST}
+    {3465579600 7200 0 EET}
+    {3478975200 10800 1 EEST}
+    {3497029200 7200 0 EET}
+    {3510424800 10800 1 EEST}
+    {3528478800 7200 0 EET}
+    {3541874400 10800 1 EEST}
+    {3559928400 7200 0 EET}
+    {3573324000 10800 1 EEST}
+    {3591378000 7200 0 EET}
+    {3605378400 10800 1 EEST}
+    {3623432400 7200 0 EET}
+    {3636828000 10800 1 EEST}
+    {3654882000 7200 0 EET}
+    {3668277600 10800 1 EEST}
+    {3686331600 7200 0 EET}
+    {3699727200 10800 1 EEST}
+    {3717781200 7200 0 EET}
+    {3731176800 10800 1 EEST}
+    {3749230800 7200 0 EET}
+    {3762626400 10800 1 EEST}
+    {3780680400 7200 0 EET}
+    {3794680800 10800 1 EEST}
+    {3812734800 7200 0 EET}
+    {3826130400 10800 1 EEST}
+    {3844184400 7200 0 EET}
+    {3857580000 10800 1 EEST}
+    {3875634000 7200 0 EET}
+    {3889029600 10800 1 EEST}
+    {3907083600 7200 0 EET}
+    {3920479200 10800 1 EEST}
+    {3938533200 7200 0 EET}
+    {3951928800 10800 1 EEST}
+    {3969982800 7200 0 EET}
+    {3983983200 10800 1 EEST}
+    {4002037200 7200 0 EET}
+    {4015432800 10800 1 EEST}
+    {4033486800 7200 0 EET}
+    {4046882400 10800 1 EEST}
+    {4064936400 7200 0 EET}
+    {4078332000 10800 1 EEST}
+    {4096386000 7200 0 EET}
 }
diff --git a/library/tzdata/Asia/Harbin b/library/tzdata/Asia/Harbin
index 0eb0c12..dfcb549 100644
--- a/library/tzdata/Asia/Harbin
+++ b/library/tzdata/Asia/Harbin
@@ -1,22 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Asia/Harbin) {
-    {-9223372036854775808 30404 0 LMT}
-    {-1325492804 30600 0 CHAT}
-    {-1194078600 28800 0 CST}
-    {-946800000 32400 0 CHAT}
-    {-115894800 30600 0 CHAT}
-    {325956600 28800 0 CST}
-    {515520000 32400 1 CDT}
-    {527007600 28800 0 CST}
-    {545155200 32400 1 CDT}
-    {558457200 28800 0 CST}
-    {576604800 32400 1 CDT}
-    {589906800 28800 0 CST}
-    {608659200 32400 1 CDT}
-    {621961200 28800 0 CST}
-    {640108800 32400 1 CDT}
-    {653410800 28800 0 CST}
-    {671558400 32400 1 CDT}
-    {684860400 28800 0 CST}
+if {![info exists TZData(Asia/Shanghai)]} {
+    LoadTimeZoneFile Asia/Shanghai
 }
+set TZData(:Asia/Harbin) $TZData(:Asia/Shanghai)
diff --git a/library/tzdata/Asia/Hebron b/library/tzdata/Asia/Hebron
index 69addd8..9049d93 100644
--- a/library/tzdata/Asia/Hebron
+++ b/library/tzdata/Asia/Hebron
@@ -46,8 +46,8 @@ set TZData(:Asia/Hebron) {
     {526424400 7200 0 IST}
     {545436000 10800 1 IDT}
     {558478800 7200 0 IST}
-    {576540000 10800 1 IDT}
-    {589237200 7200 0 IST}
+    {576626400 10800 1 IDT}
+    {589323600 7200 0 IST}
     {609890400 10800 1 IDT}
     {620773200 7200 0 IST}
     {638316000 10800 1 IDT}
@@ -88,17 +88,190 @@ set TZData(:Asia/Hebron) {
     {1158872400 7200 0 EET}
     {1175378400 10800 1 EEST}
     {1189638000 7200 0 EET}
-    {1207000800 10800 1 EEST}
-    {1217541600 10800 1 EEST}
+    {1206655200 10800 1 EEST}
     {1220216400 7200 0 EET}
     {1238104800 10800 1 EEST}
-    {1252018800 7200 0 EET}
-    {1269640860 10800 1 EEST}
+    {1252015200 7200 0 EET}
+    {1269554400 10800 1 EEST}
     {1281474000 7200 0 EET}
-    {1301652060 10800 1 EEST}
+    {1301608860 10800 1 EEST}
     {1312146000 7200 0 EET}
     {1314655200 10800 1 EEST}
-    {1317340800 7200 0 EET}
+    {1317330000 7200 0 EET}
     {1333058400 10800 1 EEST}
-    {1348790400 7200 0 EET}
+    {1348178400 7200 0 EET}
+    {1364508000 10800 1 EEST}
+    {1380229200 7200 0 EET}
+    {1395957600 10800 1 EEST}
+    {1414098000 7200 0 EET}
+    {1427493600 10800 1 EEST}
+    {1445547600 7200 0 EET}
+    {1458943200 10800 1 EEST}
+    {1476997200 7200 0 EET}
+    {1490997600 10800 1 EEST}
+    {1509051600 7200 0 EET}
+    {1522447200 10800 1 EEST}
+    {1540501200 7200 0 EET}
+    {1553896800 10800 1 EEST}
+    {1571950800 7200 0 EET}
+    {1585346400 10800 1 EEST}
+    {1603400400 7200 0 EET}
+    {1616796000 10800 1 EEST}
+    {1634850000 7200 0 EET}
+    {1648245600 10800 1 EEST}
+    {1666299600 7200 0 EET}
+    {1680300000 10800 1 EEST}
+    {1698354000 7200 0 EET}
+    {1711749600 10800 1 EEST}
+    {1729803600 7200 0 EET}
+    {1743199200 10800 1 EEST}
+    {1761253200 7200 0 EET}
+    {1774648800 10800 1 EEST}
+    {1792702800 7200 0 EET}
+    {1806098400 10800 1 EEST}
+    {1824152400 7200 0 EET}
+    {1838152800 10800 1 EEST}
+    {1856206800 7200 0 EET}
+    {1869602400 10800 1 EEST}
+    {1887656400 7200 0 EET}
+    {1901052000 10800 1 EEST}
+    {1919106000 7200 0 EET}
+    {1932501600 10800 1 EEST}
+    {1950555600 7200 0 EET}
+    {1963951200 10800 1 EEST}
+    {1982005200 7200 0 EET}
+    {1995400800 10800 1 EEST}
+    {2013454800 7200 0 EET}
+    {2027455200 10800 1 EEST}
+    {2045509200 7200 0 EET}
+    {2058904800 10800 1 EEST}
+    {2076958800 7200 0 EET}
+    {2090354400 10800 1 EEST}
+    {2108408400 7200 0 EET}
+    {2121804000 10800 1 EEST}
+    {2139858000 7200 0 EET}
+    {2153253600 10800 1 EEST}
+    {2171307600 7200 0 EET}
+    {2184703200 10800 1 EEST}
+    {2202757200 7200 0 EET}
+    {2216757600 10800 1 EEST}
+    {2234811600 7200 0 EET}
+    {2248207200 10800 1 EEST}
+    {2266261200 7200 0 EET}
+    {2279656800 10800 1 EEST}
+    {2297710800 7200 0 EET}
+    {2311106400 10800 1 EEST}
+    {2329160400 7200 0 EET}
+    {2342556000 10800 1 EEST}
+    {2360610000 7200 0 EET}
+    {2374610400 10800 1 EEST}
+    {2392664400 7200 0 EET}
+    {2406060000 10800 1 EEST}
+    {2424114000 7200 0 EET}
+    {2437509600 10800 1 EEST}
+    {2455563600 7200 0 EET}
+    {2468959200 10800 1 EEST}
+    {2487013200 7200 0 EET}
+    {2500408800 10800 1 EEST}
+    {2518462800 7200 0 EET}
+    {2531858400 10800 1 EEST}
+    {2549912400 7200 0 EET}
+    {2563912800 10800 1 EEST}
+    {2581966800 7200 0 EET}
+    {2595362400 10800 1 EEST}
+    {2613416400 7200 0 EET}
+    {2626812000 10800 1 EEST}
+    {2644866000 7200 0 EET}
+    {2658261600 10800 1 EEST}
+    {2676315600 7200 0 EET}
+    {2689711200 10800 1 EEST}
+    {2707765200 7200 0 EET}
+    {2721765600 10800 1 EEST}
+    {2739819600 7200 0 EET}
+    {2753215200 10800 1 EEST}
+    {2771269200 7200 0 EET}
+    {2784664800 10800 1 EEST}
+    {2802718800 7200 0 EET}
+    {2816114400 10800 1 EEST}
+    {2834168400 7200 0 EET}
+    {2847564000 10800 1 EEST}
+    {2865618000 7200 0 EET}
+    {2879013600 10800 1 EEST}
+    {2897067600 7200 0 EET}
+    {2911068000 10800 1 EEST}
+    {2929122000 7200 0 EET}
+    {2942517600 10800 1 EEST}
+    {2960571600 7200 0 EET}
+    {2973967200 10800 1 EEST}
+    {2992021200 7200 0 EET}
+    {3005416800 10800 1 EEST}
+    {3023470800 7200 0 EET}
+    {3036866400 10800 1 EEST}
+    {3054920400 7200 0 EET}
+    {3068316000 10800 1 EEST}
+    {3086370000 7200 0 EET}
+    {3100370400 10800 1 EEST}
+    {3118424400 7200 0 EET}
+    {3131820000 10800 1 EEST}
+    {3149874000 7200 0 EET}
+    {3163269600 10800 1 EEST}
+    {3181323600 7200 0 EET}
+    {3194719200 10800 1 EEST}
+    {3212773200 7200 0 EET}
+    {3226168800 10800 1 EEST}
+    {3244222800 7200 0 EET}
+    {3258223200 10800 1 EEST}
+    {3276277200 7200 0 EET}
+    {3289672800 10800 1 EEST}
+    {3307726800 7200 0 EET}
+    {3321122400 10800 1 EEST}
+    {3339176400 7200 0 EET}
+    {3352572000 10800 1 EEST}
+    {3370626000 7200 0 EET}
+    {3384021600 10800 1 EEST}
+    {3402075600 7200 0 EET}
+    {3415471200 10800 1 EEST}
+    {3433525200 7200 0 EET}
+    {3447525600 10800 1 EEST}
+    {3465579600 7200 0 EET}
+    {3478975200 10800 1 EEST}
+    {3497029200 7200 0 EET}
+    {3510424800 10800 1 EEST}
+    {3528478800 7200 0 EET}
+    {3541874400 10800 1 EEST}
+    {3559928400 7200 0 EET}
+    {3573324000 10800 1 EEST}
+    {3591378000 7200 0 EET}
+    {3605378400 10800 1 EEST}
+    {3623432400 7200 0 EET}
+    {3636828000 10800 1 EEST}
+    {3654882000 7200 0 EET}
+    {3668277600 10800 1 EEST}
+    {3686331600 7200 0 EET}
+    {3699727200 10800 1 EEST}
+    {3717781200 7200 0 EET}
+    {3731176800 10800 1 EEST}
+    {3749230800 7200 0 EET}
+    {3762626400 10800 1 EEST}
+    {3780680400 7200 0 EET}
+    {3794680800 10800 1 EEST}
+    {3812734800 7200 0 EET}
+    {3826130400 10800 1 EEST}
+    {3844184400 7200 0 EET}
+    {3857580000 10800 1 EEST}
+    {3875634000 7200 0 EET}
+    {3889029600 10800 1 EEST}
+    {3907083600 7200 0 EET}
+    {3920479200 10800 1 EEST}
+    {3938533200 7200 0 EET}
+    {3951928800 10800 1 EEST}
+    {3969982800 7200 0 EET}
+    {3983983200 10800 1 EEST}
+    {4002037200 7200 0 EET}
+    {4015432800 10800 1 EEST}
+    {4033486800 7200 0 EET}
+    {4046882400 10800 1 EEST}
+    {4064936400 7200 0 EET}
+    {4078332000 10800 1 EEST}
+    {4096386000 7200 0 EET}
 }
diff --git a/library/tzdata/Asia/Ho_Chi_Minh b/library/tzdata/Asia/Ho_Chi_Minh
index 777c8db..9da89f4 100644
--- a/library/tzdata/Asia/Ho_Chi_Minh
+++ b/library/tzdata/Asia/Ho_Chi_Minh
@@ -2,8 +2,13 @@
 
 set TZData(:Asia/Ho_Chi_Minh) {
     {-9223372036854775808 25600 0 LMT}
-    {-2005974400 25580 0 SMT}
-    {-1855983920 25200 0 ICT}
-    {-1819954800 28800 0 ICT}
-    {-1220428800 25200 0 ICT}
+    {-2004073600 25590 0 PLMT}
+    {-1851577590 25200 0 ICT}
+    {-852105600 28800 0 IDT}
+    {-782643600 32400 0 JST}
+    {-767869200 25200 0 ICT}
+    {-718095600 28800 0 IDT}
+    {-457776000 25200 0 ICT}
+    {-315648000 28800 0 IDT}
+    {171820800 25200 0 ICT}
 }
diff --git a/library/tzdata/Asia/Hong_Kong b/library/tzdata/Asia/Hong_Kong
index 928cde6..fcf98a6 100644
--- a/library/tzdata/Asia/Hong_Kong
+++ b/library/tzdata/Asia/Hong_Kong
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Hong_Kong) {
-    {-9223372036854775808 27396 0 LMT}
-    {-2056692996 28800 0 HKT}
+    {-9223372036854775808 27402 0 LMT}
+    {-2056693002 28800 0 HKT}
     {-907389000 32400 1 HKST}
     {-891667800 28800 0 HKT}
     {-884246400 32400 0 JST}
diff --git a/library/tzdata/Asia/Hovd b/library/tzdata/Asia/Hovd
index 2a87dab..3d200a6 100644
--- a/library/tzdata/Asia/Hovd
+++ b/library/tzdata/Asia/Hovd
@@ -48,4 +48,174 @@ set TZData(:Asia/Hovd) {
     {1127498400 25200 0 HOVT}
     {1143226800 28800 1 HOVST}
     {1159552800 25200 0 HOVT}
+    {1427482800 28800 1 HOVST}
+    {1443196800 25200 0 HOVT}
+    {1458932400 28800 1 HOVST}
+    {1474646400 25200 0 HOVT}
+    {1490382000 28800 1 HOVST}
+    {1506700800 25200 0 HOVT}
+    {1522436400 28800 1 HOVST}
+    {1538150400 25200 0 HOVT}
+    {1553886000 28800 1 HOVST}
+    {1569600000 25200 0 HOVT}
+    {1585335600 28800 1 HOVST}
+    {1601049600 25200 0 HOVT}
+    {1616785200 28800 1 HOVST}
+    {1632499200 25200 0 HOVT}
+    {1648234800 28800 1 HOVST}
+    {1663948800 25200 0 HOVT}
+    {1679684400 28800 1 HOVST}
+    {1696003200 25200 0 HOVT}
+    {1711738800 28800 1 HOVST}
+    {1727452800 25200 0 HOVT}
+    {1743188400 28800 1 HOVST}
+    {1758902400 25200 0 HOVT}
+    {1774638000 28800 1 HOVST}
+    {1790352000 25200 0 HOVT}
+    {1806087600 28800 1 HOVST}
+    {1821801600 25200 0 HOVT}
+    {1837537200 28800 1 HOVST}
+    {1853856000 25200 0 HOVT}
+    {1869591600 28800 1 HOVST}
+    {1885305600 25200 0 HOVT}
+    {1901041200 28800 1 HOVST}
+    {1916755200 25200 0 HOVT}
+    {1932490800 28800 1 HOVST}
+    {1948204800 25200 0 HOVT}
+    {1963940400 28800 1 HOVST}
+    {1979654400 25200 0 HOVT}
+    {1995390000 28800 1 HOVST}
+    {2011104000 25200 0 HOVT}
+    {2026839600 28800 1 HOVST}
+    {2043158400 25200 0 HOVT}
+    {2058894000 28800 1 HOVST}
+    {2074608000 25200 0 HOVT}
+    {2090343600 28800 1 HOVST}
+    {2106057600 25200 0 HOVT}
+    {2121793200 28800 1 HOVST}
+    {2137507200 25200 0 HOVT}
+    {2153242800 28800 1 HOVST}
+    {2168956800 25200 0 HOVT}
+    {2184692400 28800 1 HOVST}
+    {2200406400 25200 0 HOVT}
+    {2216746800 28800 1 HOVST}
+    {2232460800 25200 0 HOVT}
+    {2248196400 28800 1 HOVST}
+    {2263910400 25200 0 HOVT}
+    {2279646000 28800 1 HOVST}
+    {2295360000 25200 0 HOVT}
+    {2311095600 28800 1 HOVST}
+    {2326809600 25200 0 HOVT}
+    {2342545200 28800 1 HOVST}
+    {2358259200 25200 0 HOVT}
+    {2373994800 28800 1 HOVST}
+    {2390313600 25200 0 HOVT}
+    {2406049200 28800 1 HOVST}
+    {2421763200 25200 0 HOVT}
+    {2437498800 28800 1 HOVST}
+    {2453212800 25200 0 HOVT}
+    {2468948400 28800 1 HOVST}
+    {2484662400 25200 0 HOVT}
+    {2500398000 28800 1 HOVST}
+    {2516112000 25200 0 HOVT}
+    {2531847600 28800 1 HOVST}
+    {2547561600 25200 0 HOVT}
+    {2563297200 28800 1 HOVST}
+    {2579616000 25200 0 HOVT}
+    {2595351600 28800 1 HOVST}
+    {2611065600 25200 0 HOVT}
+    {2626801200 28800 1 HOVST}
+    {2642515200 25200 0 HOVT}
+    {2658250800 28800 1 HOVST}
+    {2673964800 25200 0 HOVT}
+    {2689700400 28800 1 HOVST}
+    {2705414400 25200 0 HOVT}
+    {2721150000 28800 1 HOVST}
+    {2737468800 25200 0 HOVT}
+    {2753204400 28800 1 HOVST}
+    {2768918400 25200 0 HOVT}
+    {2784654000 28800 1 HOVST}
+    {2800368000 25200 0 HOVT}
+    {2816103600 28800 1 HOVST}
+    {2831817600 25200 0 HOVT}
+    {2847553200 28800 1 HOVST}
+    {2863267200 25200 0 HOVT}
+    {2879002800 28800 1 HOVST}
+    {2894716800 25200 0 HOVT}
+    {2910452400 28800 1 HOVST}
+    {2926771200 25200 0 HOVT}
+    {2942506800 28800 1 HOVST}
+    {2958220800 25200 0 HOVT}
+    {2973956400 28800 1 HOVST}
+    {2989670400 25200 0 HOVT}
+    {3005406000 28800 1 HOVST}
+    {3021120000 25200 0 HOVT}
+    {3036855600 28800 1 HOVST}
+    {3052569600 25200 0 HOVT}
+    {3068305200 28800 1 HOVST}
+    {3084019200 25200 0 HOVT}
+    {3100359600 28800 1 HOVST}
+    {3116073600 25200 0 HOVT}
+    {3131809200 28800 1 HOVST}
+    {3147523200 25200 0 HOVT}
+    {3163258800 28800 1 HOVST}
+    {3178972800 25200 0 HOVT}
+    {3194708400 28800 1 HOVST}
+    {3210422400 25200 0 HOVT}
+    {3226158000 28800 1 HOVST}
+    {3241872000 25200 0 HOVT}
+    {3257607600 28800 1 HOVST}
+    {3273926400 25200 0 HOVT}
+    {3289662000 28800 1 HOVST}
+    {3305376000 25200 0 HOVT}
+    {3321111600 28800 1 HOVST}
+    {3336825600 25200 0 HOVT}
+    {3352561200 28800 1 HOVST}
+    {3368275200 25200 0 HOVT}
+    {3384010800 28800 1 HOVST}
+    {3399724800 25200 0 HOVT}
+    {3415460400 28800 1 HOVST}
+    {3431174400 25200 0 HOVT}
+    {3446910000 28800 1 HOVST}
+    {3463228800 25200 0 HOVT}
+    {3478964400 28800 1 HOVST}
+    {3494678400 25200 0 HOVT}
+    {3510414000 28800 1 HOVST}
+    {3526128000 25200 0 HOVT}
+    {3541863600 28800 1 HOVST}
+    {3557577600 25200 0 HOVT}
+    {3573313200 28800 1 HOVST}
+    {3589027200 25200 0 HOVT}
+    {3604762800 28800 1 HOVST}
+    {3621081600 25200 0 HOVT}
+    {3636817200 28800 1 HOVST}
+    {3652531200 25200 0 HOVT}
+    {3668266800 28800 1 HOVST}
+    {3683980800 25200 0 HOVT}
+    {3699716400 28800 1 HOVST}
+    {3715430400 25200 0 HOVT}
+    {3731166000 28800 1 HOVST}
+    {3746880000 25200 0 HOVT}
+    {3762615600 28800 1 HOVST}
+    {3778329600 25200 0 HOVT}
+    {3794065200 28800 1 HOVST}
+    {3810384000 25200 0 HOVT}
+    {3826119600 28800 1 HOVST}
+    {3841833600 25200 0 HOVT}
+    {3857569200 28800 1 HOVST}
+    {3873283200 25200 0 HOVT}
+    {3889018800 28800 1 HOVST}
+    {3904732800 25200 0 HOVT}
+    {3920468400 28800 1 HOVST}
+    {3936182400 25200 0 HOVT}
+    {3951918000 28800 1 HOVST}
+    {3967632000 25200 0 HOVT}
+    {3983972400 28800 1 HOVST}
+    {3999686400 25200 0 HOVT}
+    {4015422000 28800 1 HOVST}
+    {4031136000 25200 0 HOVT}
+    {4046871600 28800 1 HOVST}
+    {4062585600 25200 0 HOVT}
+    {4078321200 28800 1 HOVST}
+    {4094035200 25200 0 HOVT}
 }
diff --git a/library/tzdata/Asia/Irkutsk b/library/tzdata/Asia/Irkutsk
index bca1dcc..08e5798 100644
--- a/library/tzdata/Asia/Irkutsk
+++ b/library/tzdata/Asia/Irkutsk
@@ -1,9 +1,9 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Irkutsk) {
-    {-9223372036854775808 25040 0 LMT}
-    {-2840165840 25040 0 IMT}
-    {-1575874640 25200 0 IRKT}
+    {-9223372036854775808 25025 0 LMT}
+    {-2840165825 25025 0 IMT}
+    {-1575874625 25200 0 IRKT}
     {-1247554800 28800 0 IRKMMTT}
     {354902400 32400 1 IRKST}
     {370710000 28800 0 IRKT}
@@ -68,4 +68,5 @@ set TZData(:Asia/Irkutsk) {
     {1269712800 32400 1 IRKST}
     {1288461600 28800 0 IRKT}
     {1301162400 32400 0 IRKT}
+    {1414256400 28800 0 IRKT}
 }
diff --git a/library/tzdata/Asia/Jakarta b/library/tzdata/Asia/Jakarta
index 27033e8..75cd659 100644
--- a/library/tzdata/Asia/Jakarta
+++ b/library/tzdata/Asia/Jakarta
@@ -2,12 +2,12 @@
 
 set TZData(:Asia/Jakarta) {
     {-9223372036854775808 25632 0 LMT}
-    {-3231299232 25632 0 JMT}
+    {-3231299232 25632 0 BMT}
     {-1451719200 26400 0 JAVT}
-    {-1172906400 27000 0 WIT}
+    {-1172906400 27000 0 WIB}
     {-876641400 32400 0 JST}
-    {-766054800 27000 0 WIT}
-    {-683883000 28800 0 WIT}
-    {-620812800 27000 0 WIT}
-    {-189415800 25200 0 WIT}
+    {-766054800 27000 0 WIB}
+    {-683883000 28800 0 WIB}
+    {-620812800 27000 0 WIB}
+    {-189415800 25200 0 WIB}
 }
diff --git a/library/tzdata/Asia/Jayapura b/library/tzdata/Asia/Jayapura
index 893da8b..f3a4c44 100644
--- a/library/tzdata/Asia/Jayapura
+++ b/library/tzdata/Asia/Jayapura
@@ -2,7 +2,7 @@
 
 set TZData(:Asia/Jayapura) {
     {-9223372036854775808 33768 0 LMT}
-    {-1172913768 32400 0 EIT}
-    {-799491600 34200 0 CST}
-    {-189423000 32400 0 EIT}
+    {-1172913768 32400 0 WIT}
+    {-799491600 34200 0 ACST}
+    {-189423000 32400 0 WIT}
 }
diff --git a/library/tzdata/Asia/Jerusalem b/library/tzdata/Asia/Jerusalem
index 48e213d..2714963 100644
--- a/library/tzdata/Asia/Jerusalem
+++ b/library/tzdata/Asia/Jerusalem
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Jerusalem) {
-    {-9223372036854775808 8456 0 LMT}
-    {-2840149256 8440 0 JMT}
+    {-9223372036854775808 8454 0 LMT}
+    {-2840149254 8440 0 JMT}
     {-1641003640 7200 0 IST}
     {-933645600 10800 1 IDT}
     {-857358000 7200 0 IST}
@@ -45,8 +45,8 @@ set TZData(:Asia/Jerusalem) {
     {526424400 7200 0 IST}
     {545436000 10800 1 IDT}
     {558478800 7200 0 IST}
-    {576540000 10800 1 IDT}
-    {589237200 7200 0 IST}
+    {576626400 10800 1 IDT}
+    {589323600 7200 0 IST}
     {609890400 10800 1 IDT}
     {620773200 7200 0 IST}
     {638316000 10800 1 IDT}
@@ -96,53 +96,177 @@ set TZData(:Asia/Jerusalem) {
     {1333065600 10800 1 IDT}
     {1348354800 7200 0 IST}
     {1364515200 10800 1 IDT}
-    {1378594800 7200 0 IST}
+    {1382828400 7200 0 IST}
     {1395964800 10800 1 IDT}
-    {1411858800 7200 0 IST}
+    {1414278000 7200 0 IST}
     {1427414400 10800 1 IDT}
-    {1442703600 7200 0 IST}
-    {1459468800 10800 1 IDT}
-    {1475967600 7200 0 IST}
-    {1490918400 10800 1 IDT}
-    {1506207600 7200 0 IST}
-    {1522368000 10800 1 IDT}
-    {1537052400 7200 0 IST}
+    {1445727600 7200 0 IST}
+    {1458864000 10800 1 IDT}
+    {1477782000 7200 0 IST}
+    {1490313600 10800 1 IDT}
+    {1509231600 7200 0 IST}
+    {1521763200 10800 1 IDT}
+    {1540681200 7200 0 IST}
     {1553817600 10800 1 IDT}
-    {1570316400 7200 0 IST}
+    {1572130800 7200 0 IST}
     {1585267200 10800 1 IDT}
-    {1601161200 7200 0 IST}
+    {1603580400 7200 0 IST}
     {1616716800 10800 1 IDT}
-    {1631401200 7200 0 IST}
-    {1648771200 10800 1 IDT}
-    {1664665200 7200 0 IST}
-    {1680220800 10800 1 IDT}
-    {1695510000 7200 0 IST}
+    {1635634800 7200 0 IST}
+    {1648166400 10800 1 IDT}
+    {1667084400 7200 0 IST}
+    {1679616000 10800 1 IDT}
+    {1698534000 7200 0 IST}
     {1711670400 10800 1 IDT}
-    {1728169200 7200 0 IST}
+    {1729983600 7200 0 IST}
     {1743120000 10800 1 IDT}
-    {1759014000 7200 0 IST}
+    {1761433200 7200 0 IST}
     {1774569600 10800 1 IDT}
-    {1789858800 7200 0 IST}
+    {1792882800 7200 0 IST}
     {1806019200 10800 1 IDT}
-    {1823122800 7200 0 IST}
-    {1838073600 10800 1 IDT}
-    {1853362800 7200 0 IST}
-    {1869523200 10800 1 IDT}
-    {1884207600 7200 0 IST}
+    {1824937200 7200 0 IST}
+    {1837468800 10800 1 IDT}
+    {1856386800 7200 0 IST}
+    {1868918400 10800 1 IDT}
+    {1887836400 7200 0 IST}
     {1900972800 10800 1 IDT}
-    {1917471600 7200 0 IST}
+    {1919286000 7200 0 IST}
     {1932422400 10800 1 IDT}
-    {1947711600 7200 0 IST}
+    {1950735600 7200 0 IST}
     {1963872000 10800 1 IDT}
-    {1978556400 7200 0 IST}
-    {1995926400 10800 1 IDT}
-    {2011820400 7200 0 IST}
-    {2027376000 10800 1 IDT}
-    {2042060400 7200 0 IST}
-    {2058825600 10800 1 IDT}
-    {2075324400 7200 0 IST}
+    {1982790000 7200 0 IST}
+    {1995321600 10800 1 IDT}
+    {2014239600 7200 0 IST}
+    {2026771200 10800 1 IDT}
+    {2045689200 7200 0 IST}
+    {2058220800 10800 1 IDT}
+    {2077138800 7200 0 IST}
     {2090275200 10800 1 IDT}
-    {2106169200 7200 0 IST}
+    {2108588400 7200 0 IST}
     {2121724800 10800 1 IDT}
-    {2136409200 7200 0 IST}
+    {2140038000 7200 0 IST}
+    {2153174400 10800 1 IDT}
+    {2172092400 7200 0 IST}
+    {2184624000 10800 1 IDT}
+    {2203542000 7200 0 IST}
+    {2216073600 10800 1 IDT}
+    {2234991600 7200 0 IST}
+    {2248128000 10800 1 IDT}
+    {2266441200 7200 0 IST}
+    {2279577600 10800 1 IDT}
+    {2297890800 7200 0 IST}
+    {2311027200 10800 1 IDT}
+    {2329340400 7200 0 IST}
+    {2342476800 10800 1 IDT}
+    {2361394800 7200 0 IST}
+    {2373926400 10800 1 IDT}
+    {2392844400 7200 0 IST}
+    {2405376000 10800 1 IDT}
+    {2424294000 7200 0 IST}
+    {2437430400 10800 1 IDT}
+    {2455743600 7200 0 IST}
+    {2468880000 10800 1 IDT}
+    {2487193200 7200 0 IST}
+    {2500329600 10800 1 IDT}
+    {2519247600 7200 0 IST}
+    {2531779200 10800 1 IDT}
+    {2550697200 7200 0 IST}
+    {2563228800 10800 1 IDT}
+    {2582146800 7200 0 IST}
+    {2595283200 10800 1 IDT}
+    {2613596400 7200 0 IST}
+    {2626732800 10800 1 IDT}
+    {2645046000 7200 0 IST}
+    {2658182400 10800 1 IDT}
+    {2676495600 7200 0 IST}
+    {2689632000 10800 1 IDT}
+    {2708550000 7200 0 IST}
+    {2721081600 10800 1 IDT}
+    {2739999600 7200 0 IST}
+    {2752531200 10800 1 IDT}
+    {2771449200 7200 0 IST}
+    {2784585600 10800 1 IDT}
+    {2802898800 7200 0 IST}
+    {2816035200 10800 1 IDT}
+    {2834348400 7200 0 IST}
+    {2847484800 10800 1 IDT}
+    {2866402800 7200 0 IST}
+    {2878934400 10800 1 IDT}
+    {2897852400 7200 0 IST}
+    {2910384000 10800 1 IDT}
+    {2929302000 7200 0 IST}
+    {2941833600 10800 1 IDT}
+    {2960751600 7200 0 IST}
+    {2973888000 10800 1 IDT}
+    {2992201200 7200 0 IST}
+    {3005337600 10800 1 IDT}
+    {3023650800 7200 0 IST}
+    {3036787200 10800 1 IDT}
+    {3055705200 7200 0 IST}
+    {3068236800 10800 1 IDT}
+    {3087154800 7200 0 IST}
+    {3099686400 10800 1 IDT}
+    {3118604400 7200 0 IST}
+    {3131740800 10800 1 IDT}
+    {3150054000 7200 0 IST}
+    {3163190400 10800 1 IDT}
+    {3181503600 7200 0 IST}
+    {3194640000 10800 1 IDT}
+    {3212953200 7200 0 IST}
+    {3226089600 10800 1 IDT}
+    {3245007600 7200 0 IST}
+    {3257539200 10800 1 IDT}
+    {3276457200 7200 0 IST}
+    {3288988800 10800 1 IDT}
+    {3307906800 7200 0 IST}
+    {3321043200 10800 1 IDT}
+    {3339356400 7200 0 IST}
+    {3352492800 10800 1 IDT}
+    {3370806000 7200 0 IST}
+    {3383942400 10800 1 IDT}
+    {3402860400 7200 0 IST}
+    {3415392000 10800 1 IDT}
+    {3434310000 7200 0 IST}
+    {3446841600 10800 1 IDT}
+    {3465759600 7200 0 IST}
+    {3478896000 10800 1 IDT}
+    {3497209200 7200 0 IST}
+    {3510345600 10800 1 IDT}
+    {3528658800 7200 0 IST}
+    {3541795200 10800 1 IDT}
+    {3560108400 7200 0 IST}
+    {3573244800 10800 1 IDT}
+    {3592162800 7200 0 IST}
+    {3604694400 10800 1 IDT}
+    {3623612400 7200 0 IST}
+    {3636144000 10800 1 IDT}
+    {3655062000 7200 0 IST}
+    {3668198400 10800 1 IDT}
+    {3686511600 7200 0 IST}
+    {3699648000 10800 1 IDT}
+    {3717961200 7200 0 IST}
+    {3731097600 10800 1 IDT}
+    {3750015600 7200 0 IST}
+    {3762547200 10800 1 IDT}
+    {3781465200 7200 0 IST}
+    {3793996800 10800 1 IDT}
+    {3812914800 7200 0 IST}
+    {3825446400 10800 1 IDT}
+    {3844364400 7200 0 IST}
+    {3857500800 10800 1 IDT}
+    {3875814000 7200 0 IST}
+    {3888950400 10800 1 IDT}
+    {3907263600 7200 0 IST}
+    {3920400000 10800 1 IDT}
+    {3939318000 7200 0 IST}
+    {3951849600 10800 1 IDT}
+    {3970767600 7200 0 IST}
+    {3983299200 10800 1 IDT}
+    {4002217200 7200 0 IST}
+    {4015353600 10800 1 IDT}
+    {4033666800 7200 0 IST}
+    {4046803200 10800 1 IDT}
+    {4065116400 7200 0 IST}
+    {4078252800 10800 1 IDT}
+    {4096566000 7200 0 IST}
 }
diff --git a/library/tzdata/Asia/Kashgar b/library/tzdata/Asia/Kashgar
index 2f64f42..f67cbf1 100644
--- a/library/tzdata/Asia/Kashgar
+++ b/library/tzdata/Asia/Kashgar
@@ -1,20 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Asia/Kashgar) {
-    {-9223372036854775808 18236 0 LMT}
-    {-1325480636 19800 0 KAST}
-    {-946791000 18000 0 KAST}
-    {325969200 28800 0 CST}
-    {515520000 32400 1 CDT}
-    {527007600 28800 0 CST}
-    {545155200 32400 1 CDT}
-    {558457200 28800 0 CST}
-    {576604800 32400 1 CDT}
-    {589906800 28800 0 CST}
-    {608659200 32400 1 CDT}
-    {621961200 28800 0 CST}
-    {640108800 32400 1 CDT}
-    {653410800 28800 0 CST}
-    {671558400 32400 1 CDT}
-    {684860400 28800 0 CST}
+if {![info exists TZData(Asia/Urumqi)]} {
+    LoadTimeZoneFile Asia/Urumqi
 }
+set TZData(:Asia/Kashgar) $TZData(:Asia/Urumqi)
diff --git a/library/tzdata/Asia/Khandyga b/library/tzdata/Asia/Khandyga
new file mode 100644
index 0000000..b2dc97a
--- /dev/null
+++ b/library/tzdata/Asia/Khandyga
@@ -0,0 +1,73 @@
+# created by tools/tclZIC.tcl - do not edit
+
+set TZData(:Asia/Khandyga) {
+    {-9223372036854775808 32533 0 LMT}
+    {-1579424533 28800 0 YAKT}
+    {-1247558400 32400 0 YAKMMTT}
+    {354898800 36000 1 YAKST}
+    {370706400 32400 0 YAKT}
+    {386434800 36000 1 YAKST}
+    {402242400 32400 0 YAKT}
+    {417970800 36000 1 YAKST}
+    {433778400 32400 0 YAKT}
+    {449593200 36000 1 YAKST}
+    {465325200 32400 0 YAKT}
+    {481050000 36000 1 YAKST}
+    {496774800 32400 0 YAKT}
+    {512499600 36000 1 YAKST}
+    {528224400 32400 0 YAKT}
+    {543949200 36000 1 YAKST}
+    {559674000 32400 0 YAKT}
+    {575398800 36000 1 YAKST}
+    {591123600 32400 0 YAKT}
+    {606848400 36000 1 YAKST}
+    {622573200 32400 0 YAKT}
+    {638298000 36000 1 YAKST}
+    {654627600 32400 0 YAKT}
+    {670352400 28800 0 YAKMMTT}
+    {670356000 32400 1 YAKST}
+    {686080800 28800 0 YAKT}
+    {695757600 32400 0 YAKMMTT}
+    {701791200 36000 1 YAKST}
+    {717512400 32400 0 YAKT}
+    {733251600 36000 1 YAKST}
+    {748976400 32400 0 YAKT}
+    {764701200 36000 1 YAKST}
+    {780426000 32400 0 YAKT}
+    {796150800 36000 1 YAKST}
+    {811875600 32400 0 YAKT}
+    {828205200 36000 1 YAKST}
+    {846349200 32400 0 YAKT}
+    {859654800 36000 1 YAKST}
+    {877798800 32400 0 YAKT}
+    {891104400 36000 1 YAKST}
+    {909248400 32400 0 YAKT}
+    {922554000 36000 1 YAKST}
+    {941302800 32400 0 YAKT}
+    {954003600 36000 1 YAKST}
+    {972752400 32400 0 YAKT}
+    {985453200 36000 1 YAKST}
+    {1004202000 32400 0 YAKT}
+    {1017507600 36000 1 YAKST}
+    {1035651600 32400 0 YAKT}
+    {1048957200 36000 1 YAKST}
+    {1067101200 32400 0 YAKT}
+    {1072882800 36000 0 VLAMMTT}
+    {1080403200 39600 1 VLAST}
+    {1099152000 36000 0 VLAT}
+    {1111852800 39600 1 VLAST}
+    {1130601600 36000 0 VLAT}
+    {1143302400 39600 1 VLAST}
+    {1162051200 36000 0 VLAT}
+    {1174752000 39600 1 VLAST}
+    {1193500800 36000 0 VLAT}
+    {1206806400 39600 1 VLAST}
+    {1224950400 36000 0 VLAT}
+    {1238256000 39600 1 VLAST}
+    {1256400000 36000 0 VLAT}
+    {1269705600 39600 1 VLAST}
+    {1288454400 36000 0 VLAT}
+    {1301155200 39600 0 VLAT}
+    {1315832400 36000 0 YAKT}
+    {1414252800 32400 0 YAKT}
+}
diff --git a/library/tzdata/Asia/Krasnoyarsk b/library/tzdata/Asia/Krasnoyarsk
index 13dfeb5..17ea6c0 100644
--- a/library/tzdata/Asia/Krasnoyarsk
+++ b/library/tzdata/Asia/Krasnoyarsk
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Krasnoyarsk) {
-    {-9223372036854775808 22280 0 LMT}
-    {-1577513480 21600 0 KRAT}
+    {-9223372036854775808 22286 0 LMT}
+    {-1577513486 21600 0 KRAT}
     {-1247551200 25200 0 KRAMMTT}
     {354906000 28800 1 KRAST}
     {370713600 25200 0 KRAT}
@@ -67,4 +67,5 @@ set TZData(:Asia/Krasnoyarsk) {
     {1269716400 28800 1 KRAST}
     {1288465200 25200 0 KRAT}
     {1301166000 28800 0 KRAT}
+    {1414260000 25200 0 KRAT}
 }
diff --git a/library/tzdata/Asia/Kuwait b/library/tzdata/Asia/Kuwait
index 15d26db..e618c56 100644
--- a/library/tzdata/Asia/Kuwait
+++ b/library/tzdata/Asia/Kuwait
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Asia/Kuwait) {
-    {-9223372036854775808 11516 0 LMT}
-    {-631163516 10800 0 AST}
+if {![info exists TZData(Asia/Riyadh)]} {
+    LoadTimeZoneFile Asia/Riyadh
 }
+set TZData(:Asia/Kuwait) $TZData(:Asia/Riyadh)
diff --git a/library/tzdata/Asia/Magadan b/library/tzdata/Asia/Magadan
index 62e01c5..bf796a7 100644
--- a/library/tzdata/Asia/Magadan
+++ b/library/tzdata/Asia/Magadan
@@ -67,4 +67,5 @@ set TZData(:Asia/Magadan) {
     {1269702000 43200 1 MAGST}
     {1288450800 39600 0 MAGT}
     {1301151600 43200 0 MAGT}
+    {1414245600 36000 0 MAGT}
 }
diff --git a/library/tzdata/Asia/Makassar b/library/tzdata/Asia/Makassar
index aa604b4..be947f3 100644
--- a/library/tzdata/Asia/Makassar
+++ b/library/tzdata/Asia/Makassar
@@ -3,7 +3,7 @@
 set TZData(:Asia/Makassar) {
     {-9223372036854775808 28656 0 LMT}
     {-1577951856 28656 0 MMT}
-    {-1172908656 28800 0 CIT}
+    {-1172908656 28800 0 WITA}
     {-880272000 32400 0 JST}
-    {-766054800 28800 0 CIT}
+    {-766054800 28800 0 WITA}
 }
diff --git a/library/tzdata/Asia/Muscat b/library/tzdata/Asia/Muscat
index 21b5873..fdd34c1 100644
--- a/library/tzdata/Asia/Muscat
+++ b/library/tzdata/Asia/Muscat
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Asia/Muscat) {
-    {-9223372036854775808 14060 0 LMT}
-    {-1577937260 14400 0 GST}
+if {![info exists TZData(Asia/Dubai)]} {
+    LoadTimeZoneFile Asia/Dubai
 }
+set TZData(:Asia/Muscat) $TZData(:Asia/Dubai)
diff --git a/library/tzdata/Asia/Novokuznetsk b/library/tzdata/Asia/Novokuznetsk
index 9cd45c0..ab3c2d5 100644
--- a/library/tzdata/Asia/Novokuznetsk
+++ b/library/tzdata/Asia/Novokuznetsk
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Novokuznetsk) {
-    {-9223372036854775808 20928 0 NMT}
-    {-1577512128 21600 0 KRAT}
+    {-9223372036854775808 20928 0 LMT}
+    {-1441259328 21600 0 KRAT}
     {-1247551200 25200 0 KRAMMTT}
     {354906000 28800 1 KRAST}
     {370713600 25200 0 KRAT}
@@ -68,4 +68,5 @@ set TZData(:Asia/Novokuznetsk) {
     {1269720000 25200 1 NOVST}
     {1288468800 21600 0 NOVT}
     {1301169600 25200 0 NOVT}
+    {1414263600 25200 0 KRAT}
 }
diff --git a/library/tzdata/Asia/Novosibirsk b/library/tzdata/Asia/Novosibirsk
index 5032eec..7227780 100644
--- a/library/tzdata/Asia/Novosibirsk
+++ b/library/tzdata/Asia/Novosibirsk
@@ -68,4 +68,5 @@ set TZData(:Asia/Novosibirsk) {
     {1269720000 25200 1 NOVST}
     {1288468800 21600 0 NOVT}
     {1301169600 25200 0 NOVT}
+    {1414263600 21600 0 NOVT}
 }
diff --git a/library/tzdata/Asia/Omsk b/library/tzdata/Asia/Omsk
index ca90d2e..f25b8d4 100644
--- a/library/tzdata/Asia/Omsk
+++ b/library/tzdata/Asia/Omsk
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Omsk) {
-    {-9223372036854775808 17616 0 LMT}
-    {-1582088016 18000 0 OMST}
+    {-9223372036854775808 17610 0 LMT}
+    {-1582088010 18000 0 OMST}
     {-1247547600 21600 0 OMSMMTT}
     {354909600 25200 1 OMSST}
     {370717200 21600 0 OMST}
@@ -67,4 +67,5 @@ set TZData(:Asia/Omsk) {
     {1269720000 25200 1 OMSST}
     {1288468800 21600 0 OMST}
     {1301169600 25200 0 OMST}
+    {1414263600 21600 0 OMST}
 }
diff --git a/library/tzdata/Asia/Phnom_Penh b/library/tzdata/Asia/Phnom_Penh
index 4f28420..114c786 100644
--- a/library/tzdata/Asia/Phnom_Penh
+++ b/library/tzdata/Asia/Phnom_Penh
@@ -1,9 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Asia/Phnom_Penh) {
-    {-9223372036854775808 25180 0 LMT}
-    {-2005973980 25580 0 SMT}
-    {-1855983920 25200 0 ICT}
-    {-1819954800 28800 0 ICT}
-    {-1220428800 25200 0 ICT}
+if {![info exists TZData(Asia/Bangkok)]} {
+    LoadTimeZoneFile Asia/Bangkok
 }
+set TZData(:Asia/Phnom_Penh) $TZData(:Asia/Bangkok)
diff --git a/library/tzdata/Asia/Pontianak b/library/tzdata/Asia/Pontianak
index f3567dd..728b552 100644
--- a/library/tzdata/Asia/Pontianak
+++ b/library/tzdata/Asia/Pontianak
@@ -3,11 +3,11 @@
 set TZData(:Asia/Pontianak) {
     {-9223372036854775808 26240 0 LMT}
     {-1946186240 26240 0 PMT}
-    {-1172906240 27000 0 WIT}
+    {-1172906240 27000 0 WIB}
     {-881220600 32400 0 JST}
-    {-766054800 27000 0 WIT}
-    {-683883000 28800 0 WIT}
-    {-620812800 27000 0 WIT}
-    {-189415800 28800 0 CIT}
-    {567964800 25200 0 WIT}
+    {-766054800 27000 0 WIB}
+    {-683883000 28800 0 WIB}
+    {-620812800 27000 0 WIB}
+    {-189415800 28800 0 WITA}
+    {567964800 25200 0 WIB}
 }
diff --git a/library/tzdata/Asia/Pyongyang b/library/tzdata/Asia/Pyongyang
index 21c9a68..fafed54 100644
--- a/library/tzdata/Asia/Pyongyang
+++ b/library/tzdata/Asia/Pyongyang
@@ -2,10 +2,8 @@
 
 set TZData(:Asia/Pyongyang) {
     {-9223372036854775808 30180 0 LMT}
-    {-2524551780 30600 0 KST}
-    {-2053931400 32400 0 KST}
-    {-1325494800 30600 0 KST}
-    {-1199262600 32400 0 KST}
-    {-498128400 28800 0 KST}
-    {-264931200 32400 0 KST}
+    {-1948782180 30600 0 KST}
+    {-1830414600 32400 0 JCST}
+    {-1017824400 32400 0 JST}
+    {-768646800 32400 0 KST}
 }
diff --git a/library/tzdata/Asia/Rangoon b/library/tzdata/Asia/Rangoon
index 2b8c4fa..4f3ac02 100644
--- a/library/tzdata/Asia/Rangoon
+++ b/library/tzdata/Asia/Rangoon
@@ -2,8 +2,8 @@
 
 set TZData(:Asia/Rangoon) {
     {-9223372036854775808 23080 0 LMT}
-    {-2840163880 23076 0 RMT}
-    {-1577946276 23400 0 BURT}
+    {-2840163880 23080 0 RMT}
+    {-1577946280 23400 0 BURT}
     {-873268200 32400 0 JST}
     {-778410000 23400 0 MMT}
 }
diff --git a/library/tzdata/Asia/Riyadh b/library/tzdata/Asia/Riyadh
index 0ef28a9..12c9e24 100644
--- a/library/tzdata/Asia/Riyadh
+++ b/library/tzdata/Asia/Riyadh
@@ -2,5 +2,5 @@
 
 set TZData(:Asia/Riyadh) {
     {-9223372036854775808 11212 0 LMT}
-    {-631163212 10800 0 AST}
+    {-719636812 10800 0 AST}
 }
diff --git a/library/tzdata/Asia/Sakhalin b/library/tzdata/Asia/Sakhalin
index 0b29e82..eed20ba 100644
--- a/library/tzdata/Asia/Sakhalin
+++ b/library/tzdata/Asia/Sakhalin
@@ -2,8 +2,8 @@
 
 set TZData(:Asia/Sakhalin) {
     {-9223372036854775808 34248 0 LMT}
-    {-2031039048 32400 0 CJT}
-    {-1009875600 32400 0 JST}
+    {-2031039048 32400 0 JCST}
+    {-1017824400 32400 0 JST}
     {-768560400 39600 0 SAKMMTT}
     {354891600 43200 1 SAKST}
     {370699200 39600 0 SAKT}
@@ -69,4 +69,5 @@ set TZData(:Asia/Sakhalin) {
     {1269705600 39600 1 SAKST}
     {1288454400 36000 0 SAKT}
     {1301155200 39600 0 SAKT}
+    {1414249200 36000 0 SAKT}
 }
diff --git a/library/tzdata/Asia/Samarkand b/library/tzdata/Asia/Samarkand
index 6a1be11..4b3b49f 100644
--- a/library/tzdata/Asia/Samarkand
+++ b/library/tzdata/Asia/Samarkand
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Samarkand) {
-    {-9223372036854775808 16032 0 LMT}
-    {-1441168032 14400 0 SAMT}
+    {-9223372036854775808 16073 0 LMT}
+    {-1441168073 14400 0 SAMT}
     {-1247544000 18000 0 SAMT}
     {354913200 21600 1 SAMST}
     {370720800 21600 0 TAST}
diff --git a/library/tzdata/Asia/Seoul b/library/tzdata/Asia/Seoul
index 9c83e30..c24a1d8 100644
--- a/library/tzdata/Asia/Seoul
+++ b/library/tzdata/Asia/Seoul
@@ -2,17 +2,26 @@
 
 set TZData(:Asia/Seoul) {
     {-9223372036854775808 30472 0 LMT}
-    {-2524552072 30600 0 KST}
-    {-2053931400 32400 0 KST}
-    {-1325494800 30600 0 KST}
-    {-1199262600 32400 0 KST}
-    {-498128400 28800 0 KST}
-    {-303984000 32400 1 KDT}
-    {-293533200 28800 0 KST}
-    {-264931200 30600 0 KST}
-    {-39515400 32400 0 KST}
-    {547570800 36000 1 KDT}
-    {560872800 32400 0 KST}
-    {579020400 36000 1 KDT}
-    {592322400 32400 0 KST}
+    {-1948782472 30600 0 KST}
+    {-1830414600 32400 0 JCST}
+    {-1017824400 32400 0 JST}
+    {-767350800 32400 0 KST}
+    {-498128400 30600 0 KST}
+    {-462702600 34200 1 KDT}
+    {-451733400 30600 0 KST}
+    {-429784200 34200 1 KDT}
+    {-418296600 30600 0 KST}
+    {-399544200 34200 1 KDT}
+    {-387451800 30600 0 KST}
+    {-368094600 34200 1 KDT}
+    {-356002200 30600 0 KST}
+    {-336645000 34200 1 KDT}
+    {-324552600 30600 0 KST}
+    {-305195400 34200 1 KDT}
+    {-293103000 30600 0 KST}
+    {-264933000 32400 0 KST}
+    {547578000 36000 1 KDT}
+    {560883600 32400 0 KST}
+    {579027600 36000 1 KDT}
+    {592333200 32400 0 KST}
 }
diff --git a/library/tzdata/Asia/Shanghai b/library/tzdata/Asia/Shanghai
index aa7dc58..ff2d2b5 100644
--- a/library/tzdata/Asia/Shanghai
+++ b/library/tzdata/Asia/Shanghai
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Shanghai) {
-    {-9223372036854775808 29152 0 LMT}
-    {-1325491552 28800 0 CST}
+    {-9223372036854775808 29143 0 LMT}
+    {-2177481943 28800 0 CST}
     {-933494400 32400 1 CDT}
     {-923130000 28800 0 CST}
     {-908784000 32400 1 CDT}
diff --git a/library/tzdata/Asia/Srednekolymsk b/library/tzdata/Asia/Srednekolymsk
new file mode 100644
index 0000000..d1dd879
--- /dev/null
+++ b/library/tzdata/Asia/Srednekolymsk
@@ -0,0 +1,71 @@
+# created by tools/tclZIC.tcl - do not edit
+
+set TZData(:Asia/Srednekolymsk) {
+    {-9223372036854775808 36892 0 LMT}
+    {-1441188892 36000 0 MAGT}
+    {-1247565600 39600 0 MAGMMTT}
+    {354891600 43200 1 MAGST}
+    {370699200 39600 0 MAGT}
+    {386427600 43200 1 MAGST}
+    {402235200 39600 0 MAGT}
+    {417963600 43200 1 MAGST}
+    {433771200 39600 0 MAGT}
+    {449586000 43200 1 MAGST}
+    {465318000 39600 0 MAGT}
+    {481042800 43200 1 MAGST}
+    {496767600 39600 0 MAGT}
+    {512492400 43200 1 MAGST}
+    {528217200 39600 0 MAGT}
+    {543942000 43200 1 MAGST}
+    {559666800 39600 0 MAGT}
+    {575391600 43200 1 MAGST}
+    {591116400 39600 0 MAGT}
+    {606841200 43200 1 MAGST}
+    {622566000 39600 0 MAGT}
+    {638290800 43200 1 MAGST}
+    {654620400 39600 0 MAGT}
+    {670345200 36000 0 MAGMMTT}
+    {670348800 39600 1 MAGST}
+    {686073600 36000 0 MAGT}
+    {695750400 39600 0 MAGMMTT}
+    {701784000 43200 1 MAGST}
+    {717505200 39600 0 MAGT}
+    {733244400 43200 1 MAGST}
+    {748969200 39600 0 MAGT}
+    {764694000 43200 1 MAGST}
+    {780418800 39600 0 MAGT}
+    {796143600 43200 1 MAGST}
+    {811868400 39600 0 MAGT}
+    {828198000 43200 1 MAGST}
+    {846342000 39600 0 MAGT}
+    {859647600 43200 1 MAGST}
+    {877791600 39600 0 MAGT}
+    {891097200 43200 1 MAGST}
+    {909241200 39600 0 MAGT}
+    {922546800 43200 1 MAGST}
+    {941295600 39600 0 MAGT}
+    {953996400 43200 1 MAGST}
+    {972745200 39600 0 MAGT}
+    {985446000 43200 1 MAGST}
+    {1004194800 39600 0 MAGT}
+    {1017500400 43200 1 MAGST}
+    {1035644400 39600 0 MAGT}
+    {1048950000 43200 1 MAGST}
+    {1067094000 39600 0 MAGT}
+    {1080399600 43200 1 MAGST}
+    {1099148400 39600 0 MAGT}
+    {1111849200 43200 1 MAGST}
+    {1130598000 39600 0 MAGT}
+    {1143298800 43200 1 MAGST}
+    {1162047600 39600 0 MAGT}
+    {1174748400 43200 1 MAGST}
+    {1193497200 39600 0 MAGT}
+    {1206802800 43200 1 MAGST}
+    {1224946800 39600 0 MAGT}
+    {1238252400 43200 1 MAGST}
+    {1256396400 39600 0 MAGT}
+    {1269702000 43200 1 MAGST}
+    {1288450800 39600 0 MAGT}
+    {1301151600 43200 0 MAGT}
+    {1414245600 39600 0 SRET}
+}
diff --git a/library/tzdata/Asia/Taipei b/library/tzdata/Asia/Taipei
index a3c7ecf..61c77ef 100644
--- a/library/tzdata/Asia/Taipei
+++ b/library/tzdata/Asia/Taipei
@@ -2,13 +2,13 @@
 
 set TZData(:Asia/Taipei) {
     {-9223372036854775808 29160 0 LMT}
-    {-2335248360 28800 0 CST}
-    {-778579200 32400 1 CDT}
-    {-765363600 28800 0 CST}
-    {-747043200 32400 1 CDT}
+    {-2335248360 28800 0 JWST}
+    {-1017820800 32400 0 JST}
+    {-766224000 28800 0 CST}
+    {-745833600 32400 1 CDT}
     {-733827600 28800 0 CST}
-    {-715507200 32400 1 CDT}
-    {-702291600 28800 0 CST}
+    {-716889600 32400 1 CDT}
+    {-699613200 28800 0 CST}
     {-683884800 32400 1 CDT}
     {-670669200 28800 0 CST}
     {-652348800 32400 1 CDT}
@@ -41,6 +41,6 @@ set TZData(:Asia/Taipei) {
     {149785200 28800 0 CST}
     {165513600 32400 1 CDT}
     {181321200 28800 0 CST}
-    {299520000 32400 1 CDT}
-    {307465200 28800 0 CST}
+    {299606400 32400 1 CDT}
+    {307551600 28800 0 CST}
 }
diff --git a/library/tzdata/Asia/Tashkent b/library/tzdata/Asia/Tashkent
index fcee755..1477376 100644
--- a/library/tzdata/Asia/Tashkent
+++ b/library/tzdata/Asia/Tashkent
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Tashkent) {
-    {-9223372036854775808 16632 0 LMT}
-    {-1441168632 18000 0 TAST}
+    {-9223372036854775808 16631 0 LMT}
+    {-1441168631 18000 0 TAST}
     {-1247547600 21600 0 TAST}
     {354909600 25200 1 TASST}
     {370717200 21600 0 TAST}
diff --git a/library/tzdata/Asia/Tbilisi b/library/tzdata/Asia/Tbilisi
index a716917..54b278a 100644
--- a/library/tzdata/Asia/Tbilisi
+++ b/library/tzdata/Asia/Tbilisi
@@ -1,9 +1,9 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Tbilisi) {
-    {-9223372036854775808 10756 0 LMT}
-    {-2840151556 10756 0 TBMT}
-    {-1441162756 10800 0 TBIT}
+    {-9223372036854775808 10751 0 LMT}
+    {-2840151551 10751 0 TBMT}
+    {-1441162751 10800 0 TBIT}
     {-405140400 14400 0 TBIT}
     {354916800 18000 1 TBIST}
     {370724400 14400 0 TBIT}
diff --git a/library/tzdata/Asia/Tokyo b/library/tzdata/Asia/Tokyo
index 8d1ce11..5bfc75c 100644
--- a/library/tzdata/Asia/Tokyo
+++ b/library/tzdata/Asia/Tokyo
@@ -3,8 +3,8 @@
 set TZData(:Asia/Tokyo) {
     {-9223372036854775808 33539 0 LMT}
     {-2587712400 32400 0 JST}
-    {-2335251600 32400 0 CJT}
-    {-1009875600 32400 0 JST}
+    {-2335251600 32400 0 JCST}
+    {-1017824400 32400 0 JST}
     {-683794800 36000 1 JDT}
     {-672393600 32400 0 JST}
     {-654764400 36000 1 JDT}
diff --git a/library/tzdata/Asia/Ulaanbaatar b/library/tzdata/Asia/Ulaanbaatar
index fef76ec..93e066c 100644
--- a/library/tzdata/Asia/Ulaanbaatar
+++ b/library/tzdata/Asia/Ulaanbaatar
@@ -48,4 +48,174 @@ set TZData(:Asia/Ulaanbaatar) {
     {1127494800 28800 0 ULAT}
     {1143223200 32400 1 ULAST}
     {1159549200 28800 0 ULAT}
+    {1427479200 32400 1 ULAST}
+    {1443193200 28800 0 ULAT}
+    {1458928800 32400 1 ULAST}
+    {1474642800 28800 0 ULAT}
+    {1490378400 32400 1 ULAST}
+    {1506697200 28800 0 ULAT}
+    {1522432800 32400 1 ULAST}
+    {1538146800 28800 0 ULAT}
+    {1553882400 32400 1 ULAST}
+    {1569596400 28800 0 ULAT}
+    {1585332000 32400 1 ULAST}
+    {1601046000 28800 0 ULAT}
+    {1616781600 32400 1 ULAST}
+    {1632495600 28800 0 ULAT}
+    {1648231200 32400 1 ULAST}
+    {1663945200 28800 0 ULAT}
+    {1679680800 32400 1 ULAST}
+    {1695999600 28800 0 ULAT}
+    {1711735200 32400 1 ULAST}
+    {1727449200 28800 0 ULAT}
+    {1743184800 32400 1 ULAST}
+    {1758898800 28800 0 ULAT}
+    {1774634400 32400 1 ULAST}
+    {1790348400 28800 0 ULAT}
+    {1806084000 32400 1 ULAST}
+    {1821798000 28800 0 ULAT}
+    {1837533600 32400 1 ULAST}
+    {1853852400 28800 0 ULAT}
+    {1869588000 32400 1 ULAST}
+    {1885302000 28800 0 ULAT}
+    {1901037600 32400 1 ULAST}
+    {1916751600 28800 0 ULAT}
+    {1932487200 32400 1 ULAST}
+    {1948201200 28800 0 ULAT}
+    {1963936800 32400 1 ULAST}
+    {1979650800 28800 0 ULAT}
+    {1995386400 32400 1 ULAST}
+    {2011100400 28800 0 ULAT}
+    {2026836000 32400 1 ULAST}
+    {2043154800 28800 0 ULAT}
+    {2058890400 32400 1 ULAST}
+    {2074604400 28800 0 ULAT}
+    {2090340000 32400 1 ULAST}
+    {2106054000 28800 0 ULAT}
+    {2121789600 32400 1 ULAST}
+    {2137503600 28800 0 ULAT}
+    {2153239200 32400 1 ULAST}
+    {2168953200 28800 0 ULAT}
+    {2184688800 32400 1 ULAST}
+    {2200402800 28800 0 ULAT}
+    {2216743200 32400 1 ULAST}
+    {2232457200 28800 0 ULAT}
+    {2248192800 32400 1 ULAST}
+    {2263906800 28800 0 ULAT}
+    {2279642400 32400 1 ULAST}
+    {2295356400 28800 0 ULAT}
+    {2311092000 32400 1 ULAST}
+    {2326806000 28800 0 ULAT}
+    {2342541600 32400 1 ULAST}
+    {2358255600 28800 0 ULAT}
+    {2373991200 32400 1 ULAST}
+    {2390310000 28800 0 ULAT}
+    {2406045600 32400 1 ULAST}
+    {2421759600 28800 0 ULAT}
+    {2437495200 32400 1 ULAST}
+    {2453209200 28800 0 ULAT}
+    {2468944800 32400 1 ULAST}
+    {2484658800 28800 0 ULAT}
+    {2500394400 32400 1 ULAST}
+    {2516108400 28800 0 ULAT}
+    {2531844000 32400 1 ULAST}
+    {2547558000 28800 0 ULAT}
+    {2563293600 32400 1 ULAST}
+    {2579612400 28800 0 ULAT}
+    {2595348000 32400 1 ULAST}
+    {2611062000 28800 0 ULAT}
+    {2626797600 32400 1 ULAST}
+    {2642511600 28800 0 ULAT}
+    {2658247200 32400 1 ULAST}
+    {2673961200 28800 0 ULAT}
+    {2689696800 32400 1 ULAST}
+    {2705410800 28800 0 ULAT}
+    {2721146400 32400 1 ULAST}
+    {2737465200 28800 0 ULAT}
+    {2753200800 32400 1 ULAST}
+    {2768914800 28800 0 ULAT}
+    {2784650400 32400 1 ULAST}
+    {2800364400 28800 0 ULAT}
+    {2816100000 32400 1 ULAST}
+    {2831814000 28800 0 ULAT}
+    {2847549600 32400 1 ULAST}
+    {2863263600 28800 0 ULAT}
+    {2878999200 32400 1 ULAST}
+    {2894713200 28800 0 ULAT}
+    {2910448800 32400 1 ULAST}
+    {2926767600 28800 0 ULAT}
+    {2942503200 32400 1 ULAST}
+    {2958217200 28800 0 ULAT}
+    {2973952800 32400 1 ULAST}
+    {2989666800 28800 0 ULAT}
+    {3005402400 32400 1 ULAST}
+    {3021116400 28800 0 ULAT}
+    {3036852000 32400 1 ULAST}
+    {3052566000 28800 0 ULAT}
+    {3068301600 32400 1 ULAST}
+    {3084015600 28800 0 ULAT}
+    {3100356000 32400 1 ULAST}
+    {3116070000 28800 0 ULAT}
+    {3131805600 32400 1 ULAST}
+    {3147519600 28800 0 ULAT}
+    {3163255200 32400 1 ULAST}
+    {3178969200 28800 0 ULAT}
+    {3194704800 32400 1 ULAST}
+    {3210418800 28800 0 ULAT}
+    {3226154400 32400 1 ULAST}
+    {3241868400 28800 0 ULAT}
+    {3257604000 32400 1 ULAST}
+    {3273922800 28800 0 ULAT}
+    {3289658400 32400 1 ULAST}
+    {3305372400 28800 0 ULAT}
+    {3321108000 32400 1 ULAST}
+    {3336822000 28800 0 ULAT}
+    {3352557600 32400 1 ULAST}
+    {3368271600 28800 0 ULAT}
+    {3384007200 32400 1 ULAST}
+    {3399721200 28800 0 ULAT}
+    {3415456800 32400 1 ULAST}
+    {3431170800 28800 0 ULAT}
+    {3446906400 32400 1 ULAST}
+    {3463225200 28800 0 ULAT}
+    {3478960800 32400 1 ULAST}
+    {3494674800 28800 0 ULAT}
+    {3510410400 32400 1 ULAST}
+    {3526124400 28800 0 ULAT}
+    {3541860000 32400 1 ULAST}
+    {3557574000 28800 0 ULAT}
+    {3573309600 32400 1 ULAST}
+    {3589023600 28800 0 ULAT}
+    {3604759200 32400 1 ULAST}
+    {3621078000 28800 0 ULAT}
+    {3636813600 32400 1 ULAST}
+    {3652527600 28800 0 ULAT}
+    {3668263200 32400 1 ULAST}
+    {3683977200 28800 0 ULAT}
+    {3699712800 32400 1 ULAST}
+    {3715426800 28800 0 ULAT}
+    {3731162400 32400 1 ULAST}
+    {3746876400 28800 0 ULAT}
+    {3762612000 32400 1 ULAST}
+    {3778326000 28800 0 ULAT}
+    {3794061600 32400 1 ULAST}
+    {3810380400 28800 0 ULAT}
+    {3826116000 32400 1 ULAST}
+    {3841830000 28800 0 ULAT}
+    {3857565600 32400 1 ULAST}
+    {3873279600 28800 0 ULAT}
+    {3889015200 32400 1 ULAST}
+    {3904729200 28800 0 ULAT}
+    {3920464800 32400 1 ULAST}
+    {3936178800 28800 0 ULAT}
+    {3951914400 32400 1 ULAST}
+    {3967628400 28800 0 ULAT}
+    {3983968800 32400 1 ULAST}
+    {3999682800 28800 0 ULAT}
+    {4015418400 32400 1 ULAST}
+    {4031132400 28800 0 ULAT}
+    {4046868000 32400 1 ULAST}
+    {4062582000 28800 0 ULAT}
+    {4078317600 32400 1 ULAST}
+    {4094031600 28800 0 ULAT}
 }
diff --git a/library/tzdata/Asia/Urumqi b/library/tzdata/Asia/Urumqi
index 93fc909..4f3cd67 100644
--- a/library/tzdata/Asia/Urumqi
+++ b/library/tzdata/Asia/Urumqi
@@ -2,18 +2,5 @@
 
 set TZData(:Asia/Urumqi) {
     {-9223372036854775808 21020 0 LMT}
-    {-1325483420 21600 0 URUT}
-    {325965600 28800 0 CST}
-    {515520000 32400 1 CDT}
-    {527007600 28800 0 CST}
-    {545155200 32400 1 CDT}
-    {558457200 28800 0 CST}
-    {576604800 32400 1 CDT}
-    {589906800 28800 0 CST}
-    {608659200 32400 1 CDT}
-    {621961200 28800 0 CST}
-    {640108800 32400 1 CDT}
-    {653410800 28800 0 CST}
-    {671558400 32400 1 CDT}
-    {684860400 28800 0 CST}
+    {-1325483420 21600 0 XJT}
 }
diff --git a/library/tzdata/Asia/Ust-Nera b/library/tzdata/Asia/Ust-Nera
new file mode 100644
index 0000000..90fa7d5
--- /dev/null
+++ b/library/tzdata/Asia/Ust-Nera
@@ -0,0 +1,71 @@
+# created by tools/tclZIC.tcl - do not edit
+
+set TZData(:Asia/Ust-Nera) {
+    {-9223372036854775808 34374 0 LMT}
+    {-1579426374 28800 0 YAKT}
+    {354898800 43200 0 MAGST}
+    {370699200 39600 0 MAGT}
+    {386427600 43200 1 MAGST}
+    {402235200 39600 0 MAGT}
+    {417963600 43200 1 MAGST}
+    {433771200 39600 0 MAGT}
+    {449586000 43200 1 MAGST}
+    {465318000 39600 0 MAGT}
+    {481042800 43200 1 MAGST}
+    {496767600 39600 0 MAGT}
+    {512492400 43200 1 MAGST}
+    {528217200 39600 0 MAGT}
+    {543942000 43200 1 MAGST}
+    {559666800 39600 0 MAGT}
+    {575391600 43200 1 MAGST}
+    {591116400 39600 0 MAGT}
+    {606841200 43200 1 MAGST}
+    {622566000 39600 0 MAGT}
+    {638290800 43200 1 MAGST}
+    {654620400 39600 0 MAGT}
+    {670345200 36000 0 MAGMMTT}
+    {670348800 39600 1 MAGST}
+    {686073600 36000 0 MAGT}
+    {695750400 39600 0 MAGMMTT}
+    {701784000 43200 1 MAGST}
+    {717505200 39600 0 MAGT}
+    {733244400 43200 1 MAGST}
+    {748969200 39600 0 MAGT}
+    {764694000 43200 1 MAGST}
+    {780418800 39600 0 MAGT}
+    {796143600 43200 1 MAGST}
+    {811868400 39600 0 MAGT}
+    {828198000 43200 1 MAGST}
+    {846342000 39600 0 MAGT}
+    {859647600 43200 1 MAGST}
+    {877791600 39600 0 MAGT}
+    {891097200 43200 1 MAGST}
+    {909241200 39600 0 MAGT}
+    {922546800 43200 1 MAGST}
+    {941295600 39600 0 MAGT}
+    {953996400 43200 1 MAGST}
+    {972745200 39600 0 MAGT}
+    {985446000 43200 1 MAGST}
+    {1004194800 39600 0 MAGT}
+    {1017500400 43200 1 MAGST}
+    {1035644400 39600 0 MAGT}
+    {1048950000 43200 1 MAGST}
+    {1067094000 39600 0 MAGT}
+    {1080399600 43200 1 MAGST}
+    {1099148400 39600 0 MAGT}
+    {1111849200 43200 1 MAGST}
+    {1130598000 39600 0 MAGT}
+    {1143298800 43200 1 MAGST}
+    {1162047600 39600 0 MAGT}
+    {1174748400 43200 1 MAGST}
+    {1193497200 39600 0 MAGT}
+    {1206802800 43200 1 MAGST}
+    {1224946800 39600 0 MAGT}
+    {1238252400 43200 1 MAGST}
+    {1256396400 39600 0 MAGT}
+    {1269702000 43200 1 MAGST}
+    {1288450800 39600 0 MAGT}
+    {1301151600 43200 0 MAGT}
+    {1315828800 39600 0 VLAT}
+    {1414249200 36000 0 VLAT}
+}
diff --git a/library/tzdata/Asia/Vientiane b/library/tzdata/Asia/Vientiane
index 18ade4d..27b20ce 100644
--- a/library/tzdata/Asia/Vientiane
+++ b/library/tzdata/Asia/Vientiane
@@ -1,9 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Asia/Vientiane) {
-    {-9223372036854775808 24624 0 LMT}
-    {-2005973424 25580 0 SMT}
-    {-1855983920 25200 0 ICT}
-    {-1819954800 28800 0 ICT}
-    {-1220428800 25200 0 ICT}
+if {![info exists TZData(Asia/Bangkok)]} {
+    LoadTimeZoneFile Asia/Bangkok
 }
+set TZData(:Asia/Vientiane) $TZData(:Asia/Bangkok)
diff --git a/library/tzdata/Asia/Vladivostok b/library/tzdata/Asia/Vladivostok
index 54101a5..119ff57 100644
--- a/library/tzdata/Asia/Vladivostok
+++ b/library/tzdata/Asia/Vladivostok
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Vladivostok) {
-    {-9223372036854775808 31664 0 LMT}
-    {-1487321264 32400 0 VLAT}
+    {-9223372036854775808 31651 0 LMT}
+    {-1487321251 32400 0 VLAT}
     {-1247562000 36000 0 VLAMMTT}
     {354895200 39600 1 VLAST}
     {370702800 36000 0 VLAT}
@@ -24,9 +24,9 @@ set TZData(:Asia/Vladivostok) {
     {622569600 36000 0 VLAT}
     {638294400 39600 1 VLAST}
     {654624000 36000 0 VLAT}
-    {670348800 32400 0 VLAMMTST}
-    {670352400 36000 1 VLASST}
-    {686077200 32400 0 VLAST}
+    {670348800 32400 0 VLAMMTT}
+    {670352400 36000 1 VLAST}
+    {686077200 32400 0 VLAT}
     {695754000 36000 0 VLAMMTT}
     {701787600 39600 1 VLAST}
     {717508800 36000 0 VLAT}
@@ -67,4 +67,5 @@ set TZData(:Asia/Vladivostok) {
     {1269705600 39600 1 VLAST}
     {1288454400 36000 0 VLAT}
     {1301155200 39600 0 VLAT}
+    {1414249200 36000 0 VLAT}
 }
diff --git a/library/tzdata/Asia/Yakutsk b/library/tzdata/Asia/Yakutsk
index 5c32cc9..17493a6 100644
--- a/library/tzdata/Asia/Yakutsk
+++ b/library/tzdata/Asia/Yakutsk
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Yakutsk) {
-    {-9223372036854775808 31120 0 LMT}
-    {-1579423120 28800 0 YAKT}
+    {-9223372036854775808 31138 0 LMT}
+    {-1579423138 28800 0 YAKT}
     {-1247558400 32400 0 YAKMMTT}
     {354898800 36000 1 YAKST}
     {370706400 32400 0 YAKT}
@@ -67,4 +67,5 @@ set TZData(:Asia/Yakutsk) {
     {1269709200 36000 1 YAKST}
     {1288458000 32400 0 YAKT}
     {1301158800 36000 0 YAKT}
+    {1414252800 32400 0 YAKT}
 }
diff --git a/library/tzdata/Asia/Yekaterinburg b/library/tzdata/Asia/Yekaterinburg
index 2045496..2678958 100644
--- a/library/tzdata/Asia/Yekaterinburg
+++ b/library/tzdata/Asia/Yekaterinburg
@@ -1,8 +1,9 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Asia/Yekaterinburg) {
-    {-9223372036854775808 14544 0 LMT}
-    {-1592611344 14400 0 SVET}
+    {-9223372036854775808 14553 0 LMT}
+    {-1688270553 13505 0 PMT}
+    {-1592610305 14400 0 SVET}
     {-1247544000 18000 0 SVEMMTT}
     {354913200 21600 1 SVEST}
     {370720800 18000 0 SVET}
@@ -67,4 +68,5 @@ set TZData(:Asia/Yekaterinburg) {
     {1269723600 21600 1 YEKST}
     {1288472400 18000 0 YEKT}
     {1301173200 21600 0 YEKT}
+    {1414267200 18000 0 YEKT}
 }
diff --git a/library/tzdata/Atlantic/Azores b/library/tzdata/Atlantic/Azores
index c476191..fd47ba5 100644
--- a/library/tzdata/Atlantic/Azores
+++ b/library/tzdata/Atlantic/Azores
@@ -3,7 +3,7 @@
 set TZData(:Atlantic/Azores) {
     {-9223372036854775808 -6160 0 LMT}
     {-2713904240 -6872 0 HMT}
-    {-1849557928 -7200 0 AZOT}
+    {-1830377128 -7200 0 AZOT}
     {-1689548400 -3600 1 AZOST}
     {-1677794400 -7200 0 AZOT}
     {-1667430000 -3600 1 AZOST}
diff --git a/library/tzdata/Atlantic/Bermuda b/library/tzdata/Atlantic/Bermuda
index e8b165a..2d4d983 100644
--- a/library/tzdata/Atlantic/Bermuda
+++ b/library/tzdata/Atlantic/Bermuda
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Atlantic/Bermuda) {
-    {-9223372036854775808 -15544 0 LMT}
-    {-1262281256 -14400 0 AST}
+    {-9223372036854775808 -15558 0 LMT}
+    {-1262281242 -14400 0 AST}
     {136360800 -10800 0 ADT}
     {152082000 -14400 0 AST}
     {167810400 -10800 1 ADT}
diff --git a/library/tzdata/Atlantic/Madeira b/library/tzdata/Atlantic/Madeira
index 4960eeb..fac7f92 100644
--- a/library/tzdata/Atlantic/Madeira
+++ b/library/tzdata/Atlantic/Madeira
@@ -3,7 +3,7 @@
 set TZData(:Atlantic/Madeira) {
     {-9223372036854775808 -4056 0 LMT}
     {-2713906344 -4056 0 FMT}
-    {-1849560744 -3600 0 MADT}
+    {-1830379944 -3600 0 MADT}
     {-1689552000 0 1 MADST}
     {-1677798000 -3600 0 MADT}
     {-1667433600 0 1 MADST}
diff --git a/library/tzdata/Atlantic/Reykjavik b/library/tzdata/Atlantic/Reykjavik
index f0248ad..ad7f0db 100644
--- a/library/tzdata/Atlantic/Reykjavik
+++ b/library/tzdata/Atlantic/Reykjavik
@@ -1,15 +1,18 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Atlantic/Reykjavik) {
-    {-9223372036854775808 -5244 0 LMT}
-    {-4197047556 -5268 0 RMT}
-    {-1956609132 -3600 0 IST}
+    {-9223372036854775808 -5280 0 LMT}
+    {-1956609120 -3600 0 IST}
     {-1668211200 0 1 ISST}
     {-1647212400 -3600 0 IST}
     {-1636675200 0 1 ISST}
     {-1613430000 -3600 0 IST}
+    {-1605139200 0 1 ISST}
+    {-1581894000 -3600 0 IST}
+    {-1539561600 0 1 ISST}
+    {-1531350000 -3600 0 IST}
     {-968025600 0 1 ISST}
-    {-949615200 -3600 0 IST}
+    {-952293600 -3600 0 IST}
     {-942008400 0 1 ISST}
     {-920239200 -3600 0 IST}
     {-909957600 0 1 ISST}
diff --git a/library/tzdata/Atlantic/St_Helena b/library/tzdata/Atlantic/St_Helena
index 6d0c00d..bf36c6a 100644
--- a/library/tzdata/Atlantic/St_Helena
+++ b/library/tzdata/Atlantic/St_Helena
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Atlantic/St_Helena) {
-    {-9223372036854775808 -1368 0 LMT}
-    {-2524520232 -1368 0 JMT}
-    {-599614632 0 0 GMT}
+if {![info exists TZData(Africa/Abidjan)]} {
+    LoadTimeZoneFile Africa/Abidjan
 }
+set TZData(:Atlantic/St_Helena) $TZData(:Africa/Abidjan)
diff --git a/library/tzdata/Australia/Adelaide b/library/tzdata/Australia/Adelaide
index 9abe192..7e1b04e 100644
--- a/library/tzdata/Australia/Adelaide
+++ b/library/tzdata/Australia/Adelaide
@@ -2,272 +2,272 @@
 
 set TZData(:Australia/Adelaide) {
     {-9223372036854775808 33260 0 LMT}
-    {-2364110060 32400 0 CST}
-    {-2230189200 34200 0 CST}
-    {-1672565340 37800 1 CST}
-    {-1665390600 34200 0 CST}
-    {-883639800 37800 1 CST}
-    {-876126600 34200 0 CST}
-    {-860398200 37800 1 CST}
-    {-844677000 34200 0 CST}
-    {-828343800 37800 1 CST}
-    {-813227400 34200 0 CST}
-    {31501800 34200 0 CST}
-    {57688200 37800 1 CST}
-    {67969800 34200 0 CST}
-    {89137800 37800 1 CST}
-    {100024200 34200 0 CST}
-    {120587400 37800 1 CST}
-    {131473800 34200 0 CST}
-    {152037000 37800 1 CST}
-    {162923400 34200 0 CST}
-    {183486600 37800 1 CST}
-    {194977800 34200 0 CST}
-    {215541000 37800 1 CST}
-    {226427400 34200 0 CST}
-    {246990600 37800 1 CST}
-    {257877000 34200 0 CST}
-    {278440200 37800 1 CST}
-    {289326600 34200 0 CST}
-    {309889800 37800 1 CST}
-    {320776200 34200 0 CST}
-    {341339400 37800 1 CST}
-    {352225800 34200 0 CST}
-    {372789000 37800 1 CST}
-    {384280200 34200 0 CST}
-    {404843400 37800 1 CST}
-    {415729800 34200 0 CST}
-    {436293000 37800 1 CST}
-    {447179400 34200 0 CST}
-    {467742600 37800 1 CST}
-    {478629000 34200 0 CST}
-    {499192200 37800 1 CST}
-    {511288200 34200 0 CST}
-    {530037000 37800 1 CST}
-    {542737800 34200 0 CST}
-    {562091400 37800 1 CST}
-    {574792200 34200 0 CST}
-    {594145800 37800 1 CST}
-    {606241800 34200 0 CST}
-    {625595400 37800 1 CST}
-    {637691400 34200 0 CST}
-    {657045000 37800 1 CST}
-    {667931400 34200 0 CST}
-    {688494600 37800 1 CST}
-    {701195400 34200 0 CST}
-    {719944200 37800 1 CST}
-    {731435400 34200 0 CST}
-    {751998600 37800 1 CST}
-    {764094600 34200 0 CST}
-    {783448200 37800 1 CST}
-    {796149000 34200 0 CST}
-    {814897800 37800 1 CST}
-    {828203400 34200 0 CST}
-    {846347400 37800 1 CST}
-    {859653000 34200 0 CST}
-    {877797000 37800 1 CST}
-    {891102600 34200 0 CST}
-    {909246600 37800 1 CST}
-    {922552200 34200 0 CST}
-    {941301000 37800 1 CST}
-    {954001800 34200 0 CST}
-    {972750600 37800 1 CST}
-    {985451400 34200 0 CST}
-    {1004200200 37800 1 CST}
-    {1017505800 34200 0 CST}
-    {1035649800 37800 1 CST}
-    {1048955400 34200 0 CST}
-    {1067099400 37800 1 CST}
-    {1080405000 34200 0 CST}
-    {1099153800 37800 1 CST}
-    {1111854600 34200 0 CST}
-    {1130603400 37800 1 CST}
-    {1143909000 34200 0 CST}
-    {1162053000 37800 1 CST}
-    {1174753800 34200 0 CST}
-    {1193502600 37800 1 CST}
-    {1207413000 34200 0 CST}
-    {1223137800 37800 1 CST}
-    {1238862600 34200 0 CST}
-    {1254587400 37800 1 CST}
-    {1270312200 34200 0 CST}
-    {1286037000 37800 1 CST}
-    {1301761800 34200 0 CST}
-    {1317486600 37800 1 CST}
-    {1333211400 34200 0 CST}
-    {1349541000 37800 1 CST}
-    {1365265800 34200 0 CST}
-    {1380990600 37800 1 CST}
-    {1396715400 34200 0 CST}
-    {1412440200 37800 1 CST}
-    {1428165000 34200 0 CST}
-    {1443889800 37800 1 CST}
-    {1459614600 34200 0 CST}
-    {1475339400 37800 1 CST}
-    {1491064200 34200 0 CST}
-    {1506789000 37800 1 CST}
-    {1522513800 34200 0 CST}
-    {1538843400 37800 1 CST}
-    {1554568200 34200 0 CST}
-    {1570293000 37800 1 CST}
-    {1586017800 34200 0 CST}
-    {1601742600 37800 1 CST}
-    {1617467400 34200 0 CST}
-    {1633192200 37800 1 CST}
-    {1648917000 34200 0 CST}
-    {1664641800 37800 1 CST}
-    {1680366600 34200 0 CST}
-    {1696091400 37800 1 CST}
-    {1712421000 34200 0 CST}
-    {1728145800 37800 1 CST}
-    {1743870600 34200 0 CST}
-    {1759595400 37800 1 CST}
-    {1775320200 34200 0 CST}
-    {1791045000 37800 1 CST}
-    {1806769800 34200 0 CST}
-    {1822494600 37800 1 CST}
-    {1838219400 34200 0 CST}
-    {1853944200 37800 1 CST}
-    {1869669000 34200 0 CST}
-    {1885998600 37800 1 CST}
-    {1901723400 34200 0 CST}
-    {1917448200 37800 1 CST}
-    {1933173000 34200 0 CST}
-    {1948897800 37800 1 CST}
-    {1964622600 34200 0 CST}
-    {1980347400 37800 1 CST}
-    {1996072200 34200 0 CST}
-    {2011797000 37800 1 CST}
-    {2027521800 34200 0 CST}
-    {2043246600 37800 1 CST}
-    {2058971400 34200 0 CST}
-    {2075301000 37800 1 CST}
-    {2091025800 34200 0 CST}
-    {2106750600 37800 1 CST}
-    {2122475400 34200 0 CST}
-    {2138200200 37800 1 CST}
-    {2153925000 34200 0 CST}
-    {2169649800 37800 1 CST}
-    {2185374600 34200 0 CST}
-    {2201099400 37800 1 CST}
-    {2216824200 34200 0 CST}
-    {2233153800 37800 1 CST}
-    {2248878600 34200 0 CST}
-    {2264603400 37800 1 CST}
-    {2280328200 34200 0 CST}
-    {2296053000 37800 1 CST}
-    {2311777800 34200 0 CST}
-    {2327502600 37800 1 CST}
-    {2343227400 34200 0 CST}
-    {2358952200 37800 1 CST}
-    {2374677000 34200 0 CST}
-    {2390401800 37800 1 CST}
-    {2406126600 34200 0 CST}
-    {2422456200 37800 1 CST}
-    {2438181000 34200 0 CST}
-    {2453905800 37800 1 CST}
-    {2469630600 34200 0 CST}
-    {2485355400 37800 1 CST}
-    {2501080200 34200 0 CST}
-    {2516805000 37800 1 CST}
-    {2532529800 34200 0 CST}
-    {2548254600 37800 1 CST}
-    {2563979400 34200 0 CST}
-    {2579704200 37800 1 CST}
-    {2596033800 34200 0 CST}
-    {2611758600 37800 1 CST}
-    {2627483400 34200 0 CST}
-    {2643208200 37800 1 CST}
-    {2658933000 34200 0 CST}
-    {2674657800 37800 1 CST}
-    {2690382600 34200 0 CST}
-    {2706107400 37800 1 CST}
-    {2721832200 34200 0 CST}
-    {2737557000 37800 1 CST}
-    {2753281800 34200 0 CST}
-    {2769611400 37800 1 CST}
-    {2785336200 34200 0 CST}
-    {2801061000 37800 1 CST}
-    {2816785800 34200 0 CST}
-    {2832510600 37800 1 CST}
-    {2848235400 34200 0 CST}
-    {2863960200 37800 1 CST}
-    {2879685000 34200 0 CST}
-    {2895409800 37800 1 CST}
-    {2911134600 34200 0 CST}
-    {2926859400 37800 1 CST}
-    {2942584200 34200 0 CST}
-    {2958913800 37800 1 CST}
-    {2974638600 34200 0 CST}
-    {2990363400 37800 1 CST}
-    {3006088200 34200 0 CST}
-    {3021813000 37800 1 CST}
-    {3037537800 34200 0 CST}
-    {3053262600 37800 1 CST}
-    {3068987400 34200 0 CST}
-    {3084712200 37800 1 CST}
-    {3100437000 34200 0 CST}
-    {3116766600 37800 1 CST}
-    {3132491400 34200 0 CST}
-    {3148216200 37800 1 CST}
-    {3163941000 34200 0 CST}
-    {3179665800 37800 1 CST}
-    {3195390600 34200 0 CST}
-    {3211115400 37800 1 CST}
-    {3226840200 34200 0 CST}
-    {3242565000 37800 1 CST}
-    {3258289800 34200 0 CST}
-    {3274014600 37800 1 CST}
-    {3289739400 34200 0 CST}
-    {3306069000 37800 1 CST}
-    {3321793800 34200 0 CST}
-    {3337518600 37800 1 CST}
-    {3353243400 34200 0 CST}
-    {3368968200 37800 1 CST}
-    {3384693000 34200 0 CST}
-    {3400417800 37800 1 CST}
-    {3416142600 34200 0 CST}
-    {3431867400 37800 1 CST}
-    {3447592200 34200 0 CST}
-    {3463317000 37800 1 CST}
-    {3479646600 34200 0 CST}
-    {3495371400 37800 1 CST}
-    {3511096200 34200 0 CST}
-    {3526821000 37800 1 CST}
-    {3542545800 34200 0 CST}
-    {3558270600 37800 1 CST}
-    {3573995400 34200 0 CST}
-    {3589720200 37800 1 CST}
-    {3605445000 34200 0 CST}
-    {3621169800 37800 1 CST}
-    {3636894600 34200 0 CST}
-    {3653224200 37800 1 CST}
-    {3668949000 34200 0 CST}
-    {3684673800 37800 1 CST}
-    {3700398600 34200 0 CST}
-    {3716123400 37800 1 CST}
-    {3731848200 34200 0 CST}
-    {3747573000 37800 1 CST}
-    {3763297800 34200 0 CST}
-    {3779022600 37800 1 CST}
-    {3794747400 34200 0 CST}
-    {3810472200 37800 1 CST}
-    {3826197000 34200 0 CST}
-    {3842526600 37800 1 CST}
-    {3858251400 34200 0 CST}
-    {3873976200 37800 1 CST}
-    {3889701000 34200 0 CST}
-    {3905425800 37800 1 CST}
-    {3921150600 34200 0 CST}
-    {3936875400 37800 1 CST}
-    {3952600200 34200 0 CST}
-    {3968325000 37800 1 CST}
-    {3984049800 34200 0 CST}
-    {4000379400 37800 1 CST}
-    {4016104200 34200 0 CST}
-    {4031829000 37800 1 CST}
-    {4047553800 34200 0 CST}
-    {4063278600 37800 1 CST}
-    {4079003400 34200 0 CST}
-    {4094728200 37800 1 CST}
+    {-2364110060 32400 0 ACST}
+    {-2230189200 34200 0 ACST}
+    {-1672565340 37800 1 ACDT}
+    {-1665390600 34200 0 ACST}
+    {-883639800 37800 1 ACDT}
+    {-876126600 34200 0 ACST}
+    {-860398200 37800 1 ACDT}
+    {-844677000 34200 0 ACST}
+    {-828343800 37800 1 ACDT}
+    {-813227400 34200 0 ACST}
+    {31501800 34200 0 ACST}
+    {57688200 37800 1 ACDT}
+    {67969800 34200 0 ACST}
+    {89137800 37800 1 ACDT}
+    {100024200 34200 0 ACST}
+    {120587400 37800 1 ACDT}
+    {131473800 34200 0 ACST}
+    {152037000 37800 1 ACDT}
+    {162923400 34200 0 ACST}
+    {183486600 37800 1 ACDT}
+    {194977800 34200 0 ACST}
+    {215541000 37800 1 ACDT}
+    {226427400 34200 0 ACST}
+    {246990600 37800 1 ACDT}
+    {257877000 34200 0 ACST}
+    {278440200 37800 1 ACDT}
+    {289326600 34200 0 ACST}
+    {309889800 37800 1 ACDT}
+    {320776200 34200 0 ACST}
+    {341339400 37800 1 ACDT}
+    {352225800 34200 0 ACST}
+    {372789000 37800 1 ACDT}
+    {384280200 34200 0 ACST}
+    {404843400 37800 1 ACDT}
+    {415729800 34200 0 ACST}
+    {436293000 37800 1 ACDT}
+    {447179400 34200 0 ACST}
+    {467742600 37800 1 ACDT}
+    {478629000 34200 0 ACST}
+    {499192200 37800 1 ACDT}
+    {511288200 34200 0 ACST}
+    {530037000 37800 1 ACDT}
+    {542737800 34200 0 ACST}
+    {562091400 37800 1 ACDT}
+    {574792200 34200 0 ACST}
+    {594145800 37800 1 ACDT}
+    {606241800 34200 0 ACST}
+    {625595400 37800 1 ACDT}
+    {637691400 34200 0 ACST}
+    {657045000 37800 1 ACDT}
+    {667931400 34200 0 ACST}
+    {688494600 37800 1 ACDT}
+    {701195400 34200 0 ACST}
+    {719944200 37800 1 ACDT}
+    {731435400 34200 0 ACST}
+    {751998600 37800 1 ACDT}
+    {764094600 34200 0 ACST}
+    {783448200 37800 1 ACDT}
+    {796149000 34200 0 ACST}
+    {814897800 37800 1 ACDT}
+    {828203400 34200 0 ACST}
+    {846347400 37800 1 ACDT}
+    {859653000 34200 0 ACST}
+    {877797000 37800 1 ACDT}
+    {891102600 34200 0 ACST}
+    {909246600 37800 1 ACDT}
+    {922552200 34200 0 ACST}
+    {941301000 37800 1 ACDT}
+    {954001800 34200 0 ACST}
+    {972750600 37800 1 ACDT}
+    {985451400 34200 0 ACST}
+    {1004200200 37800 1 ACDT}
+    {1017505800 34200 0 ACST}
+    {1035649800 37800 1 ACDT}
+    {1048955400 34200 0 ACST}
+    {1067099400 37800 1 ACDT}
+    {1080405000 34200 0 ACST}
+    {1099153800 37800 1 ACDT}
+    {1111854600 34200 0 ACST}
+    {1130603400 37800 1 ACDT}
+    {1143909000 34200 0 ACST}
+    {1162053000 37800 1 ACDT}
+    {1174753800 34200 0 ACST}
+    {1193502600 37800 1 ACDT}
+    {1207413000 34200 0 ACST}
+    {1223137800 37800 1 ACDT}
+    {1238862600 34200 0 ACST}
+    {1254587400 37800 1 ACDT}
+    {1270312200 34200 0 ACST}
+    {1286037000 37800 1 ACDT}
+    {1301761800 34200 0 ACST}
+    {1317486600 37800 1 ACDT}
+    {1333211400 34200 0 ACST}
+    {1349541000 37800 1 ACDT}
+    {1365265800 34200 0 ACST}
+    {1380990600 37800 1 ACDT}
+    {1396715400 34200 0 ACST}
+    {1412440200 37800 1 ACDT}
+    {1428165000 34200 0 ACST}
+    {1443889800 37800 1 ACDT}
+    {1459614600 34200 0 ACST}
+    {1475339400 37800 1 ACDT}
+    {1491064200 34200 0 ACST}
+    {1506789000 37800 1 ACDT}
+    {1522513800 34200 0 ACST}
+    {1538843400 37800 1 ACDT}
+    {1554568200 34200 0 ACST}
+    {1570293000 37800 1 ACDT}
+    {1586017800 34200 0 ACST}
+    {1601742600 37800 1 ACDT}
+    {1617467400 34200 0 ACST}
+    {1633192200 37800 1 ACDT}
+    {1648917000 34200 0 ACST}
+    {1664641800 37800 1 ACDT}
+    {1680366600 34200 0 ACST}
+    {1696091400 37800 1 ACDT}
+    {1712421000 34200 0 ACST}
+    {1728145800 37800 1 ACDT}
+    {1743870600 34200 0 ACST}
+    {1759595400 37800 1 ACDT}
+    {1775320200 34200 0 ACST}
+    {1791045000 37800 1 ACDT}
+    {1806769800 34200 0 ACST}
+    {1822494600 37800 1 ACDT}
+    {1838219400 34200 0 ACST}
+    {1853944200 37800 1 ACDT}
+    {1869669000 34200 0 ACST}
+    {1885998600 37800 1 ACDT}
+    {1901723400 34200 0 ACST}
+    {1917448200 37800 1 ACDT}
+    {1933173000 34200 0 ACST}
+    {1948897800 37800 1 ACDT}
+    {1964622600 34200 0 ACST}
+    {1980347400 37800 1 ACDT}
+    {1996072200 34200 0 ACST}
+    {2011797000 37800 1 ACDT}
+    {2027521800 34200 0 ACST}
+    {2043246600 37800 1 ACDT}
+    {2058971400 34200 0 ACST}
+    {2075301000 37800 1 ACDT}
+    {2091025800 34200 0 ACST}
+    {2106750600 37800 1 ACDT}
+    {2122475400 34200 0 ACST}
+    {2138200200 37800 1 ACDT}
+    {2153925000 34200 0 ACST}
+    {2169649800 37800 1 ACDT}
+    {2185374600 34200 0 ACST}
+    {2201099400 37800 1 ACDT}
+    {2216824200 34200 0 ACST}
+    {2233153800 37800 1 ACDT}
+    {2248878600 34200 0 ACST}
+    {2264603400 37800 1 ACDT}
+    {2280328200 34200 0 ACST}
+    {2296053000 37800 1 ACDT}
+    {2311777800 34200 0 ACST}
+    {2327502600 37800 1 ACDT}
+    {2343227400 34200 0 ACST}
+    {2358952200 37800 1 ACDT}
+    {2374677000 34200 0 ACST}
+    {2390401800 37800 1 ACDT}
+    {2406126600 34200 0 ACST}
+    {2422456200 37800 1 ACDT}
+    {2438181000 34200 0 ACST}
+    {2453905800 37800 1 ACDT}
+    {2469630600 34200 0 ACST}
+    {2485355400 37800 1 ACDT}
+    {2501080200 34200 0 ACST}
+    {2516805000 37800 1 ACDT}
+    {2532529800 34200 0 ACST}
+    {2548254600 37800 1 ACDT}
+    {2563979400 34200 0 ACST}
+    {2579704200 37800 1 ACDT}
+    {2596033800 34200 0 ACST}
+    {2611758600 37800 1 ACDT}
+    {2627483400 34200 0 ACST}
+    {2643208200 37800 1 ACDT}
+    {2658933000 34200 0 ACST}
+    {2674657800 37800 1 ACDT}
+    {2690382600 34200 0 ACST}
+    {2706107400 37800 1 ACDT}
+    {2721832200 34200 0 ACST}
+    {2737557000 37800 1 ACDT}
+    {2753281800 34200 0 ACST}
+    {2769611400 37800 1 ACDT}
+    {2785336200 34200 0 ACST}
+    {2801061000 37800 1 ACDT}
+    {2816785800 34200 0 ACST}
+    {2832510600 37800 1 ACDT}
+    {2848235400 34200 0 ACST}
+    {2863960200 37800 1 ACDT}
+    {2879685000 34200 0 ACST}
+    {2895409800 37800 1 ACDT}
+    {2911134600 34200 0 ACST}
+    {2926859400 37800 1 ACDT}
+    {2942584200 34200 0 ACST}
+    {2958913800 37800 1 ACDT}
+    {2974638600 34200 0 ACST}
+    {2990363400 37800 1 ACDT}
+    {3006088200 34200 0 ACST}
+    {3021813000 37800 1 ACDT}
+    {3037537800 34200 0 ACST}
+    {3053262600 37800 1 ACDT}
+    {3068987400 34200 0 ACST}
+    {3084712200 37800 1 ACDT}
+    {3100437000 34200 0 ACST}
+    {3116766600 37800 1 ACDT}
+    {3132491400 34200 0 ACST}
+    {3148216200 37800 1 ACDT}
+    {3163941000 34200 0 ACST}
+    {3179665800 37800 1 ACDT}
+    {3195390600 34200 0 ACST}
+    {3211115400 37800 1 ACDT}
+    {3226840200 34200 0 ACST}
+    {3242565000 37800 1 ACDT}
+    {3258289800 34200 0 ACST}
+    {3274014600 37800 1 ACDT}
+    {3289739400 34200 0 ACST}
+    {3306069000 37800 1 ACDT}
+    {3321793800 34200 0 ACST}
+    {3337518600 37800 1 ACDT}
+    {3353243400 34200 0 ACST}
+    {3368968200 37800 1 ACDT}
+    {3384693000 34200 0 ACST}
+    {3400417800 37800 1 ACDT}
+    {3416142600 34200 0 ACST}
+    {3431867400 37800 1 ACDT}
+    {3447592200 34200 0 ACST}
+    {3463317000 37800 1 ACDT}
+    {3479646600 34200 0 ACST}
+    {3495371400 37800 1 ACDT}
+    {3511096200 34200 0 ACST}
+    {3526821000 37800 1 ACDT}
+    {3542545800 34200 0 ACST}
+    {3558270600 37800 1 ACDT}
+    {3573995400 34200 0 ACST}
+    {3589720200 37800 1 ACDT}
+    {3605445000 34200 0 ACST}
+    {3621169800 37800 1 ACDT}
+    {3636894600 34200 0 ACST}
+    {3653224200 37800 1 ACDT}
+    {3668949000 34200 0 ACST}
+    {3684673800 37800 1 ACDT}
+    {3700398600 34200 0 ACST}
+    {3716123400 37800 1 ACDT}
+    {3731848200 34200 0 ACST}
+    {3747573000 37800 1 ACDT}
+    {3763297800 34200 0 ACST}
+    {3779022600 37800 1 ACDT}
+    {3794747400 34200 0 ACST}
+    {3810472200 37800 1 ACDT}
+    {3826197000 34200 0 ACST}
+    {3842526600 37800 1 ACDT}
+    {3858251400 34200 0 ACST}
+    {3873976200 37800 1 ACDT}
+    {3889701000 34200 0 ACST}
+    {3905425800 37800 1 ACDT}
+    {3921150600 34200 0 ACST}
+    {3936875400 37800 1 ACDT}
+    {3952600200 34200 0 ACST}
+    {3968325000 37800 1 ACDT}
+    {3984049800 34200 0 ACST}
+    {4000379400 37800 1 ACDT}
+    {4016104200 34200 0 ACST}
+    {4031829000 37800 1 ACDT}
+    {4047553800 34200 0 ACST}
+    {4063278600 37800 1 ACDT}
+    {4079003400 34200 0 ACST}
+    {4094728200 37800 1 ACDT}
 }
diff --git a/library/tzdata/Australia/Brisbane b/library/tzdata/Australia/Brisbane
index fe6d154..8422ae6 100644
--- a/library/tzdata/Australia/Brisbane
+++ b/library/tzdata/Australia/Brisbane
@@ -2,22 +2,22 @@
 
 set TZData(:Australia/Brisbane) {
     {-9223372036854775808 36728 0 LMT}
-    {-2366791928 36000 0 EST}
-    {-1672567140 39600 1 EST}
-    {-1665392400 36000 0 EST}
-    {-883641600 39600 1 EST}
-    {-876128400 36000 0 EST}
-    {-860400000 39600 1 EST}
-    {-844678800 36000 0 EST}
-    {-828345600 39600 1 EST}
-    {-813229200 36000 0 EST}
-    {31500000 36000 0 EST}
-    {57686400 39600 1 EST}
-    {67968000 36000 0 EST}
-    {625593600 39600 1 EST}
-    {636480000 36000 0 EST}
-    {657043200 39600 1 EST}
-    {667929600 36000 0 EST}
-    {688492800 39600 1 EST}
-    {699379200 36000 0 EST}
+    {-2366791928 36000 0 AEST}
+    {-1672567140 39600 1 AEDT}
+    {-1665392400 36000 0 AEST}
+    {-883641600 39600 1 AEDT}
+    {-876128400 36000 0 AEST}
+    {-860400000 39600 1 AEDT}
+    {-844678800 36000 0 AEST}
+    {-828345600 39600 1 AEDT}
+    {-813229200 36000 0 AEST}
+    {31500000 36000 0 AEST}
+    {57686400 39600 1 AEDT}
+    {67968000 36000 0 AEST}
+    {625593600 39600 1 AEDT}
+    {636480000 36000 0 AEST}
+    {657043200 39600 1 AEDT}
+    {667929600 36000 0 AEST}
+    {688492800 39600 1 AEDT}
+    {699379200 36000 0 AEST}
 }
diff --git a/library/tzdata/Australia/Broken_Hill b/library/tzdata/Australia/Broken_Hill
index 35cbb7e..c428061 100644
--- a/library/tzdata/Australia/Broken_Hill
+++ b/library/tzdata/Australia/Broken_Hill
@@ -2,274 +2,274 @@
 
 set TZData(:Australia/Broken_Hill) {
     {-9223372036854775808 33948 0 LMT}
-    {-2364110748 36000 0 EST}
-    {-2314951200 32400 0 CST}
-    {-2230189200 34200 0 CST}
-    {-1672565340 37800 1 CST}
-    {-1665390600 34200 0 CST}
-    {-883639800 37800 1 CST}
-    {-876126600 34200 0 CST}
-    {-860398200 37800 1 CST}
-    {-844677000 34200 0 CST}
-    {-828343800 37800 1 CST}
-    {-813227400 34200 0 CST}
-    {31501800 34200 0 CST}
-    {57688200 37800 1 CST}
-    {67969800 34200 0 CST}
-    {89137800 37800 1 CST}
-    {100024200 34200 0 CST}
-    {120587400 37800 1 CST}
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+    {3810472200 37800 1 ACDT}
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+    {3842526600 37800 1 ACDT}
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+    {3873976200 37800 1 ACDT}
+    {3889701000 34200 0 ACST}
+    {3905425800 37800 1 ACDT}
+    {3921150600 34200 0 ACST}
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+    {3952600200 34200 0 ACST}
+    {3968325000 37800 1 ACDT}
+    {3984049800 34200 0 ACST}
+    {4000379400 37800 1 ACDT}
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+    {4031829000 37800 1 ACDT}
+    {4047553800 34200 0 ACST}
+    {4063278600 37800 1 ACDT}
+    {4079003400 34200 0 ACST}
+    {4094728200 37800 1 ACDT}
 }
diff --git a/library/tzdata/Australia/Currie b/library/tzdata/Australia/Currie
index ae6d1f0..936327b 100644
--- a/library/tzdata/Australia/Currie
+++ b/library/tzdata/Australia/Currie
@@ -2,272 +2,272 @@
 
 set TZData(:Australia/Currie) {
     {-9223372036854775808 34528 0 LMT}
-    {-2345794528 36000 0 EST}
-    {-1680508800 39600 1 EST}
-    {-1669892400 39600 0 EST}
-    {-1665392400 36000 0 EST}
-    {-883641600 39600 1 EST}
-    {-876128400 36000 0 EST}
-    {-860400000 39600 1 EST}
-    {-844678800 36000 0 EST}
-    {-828345600 39600 1 EST}
-    {-813229200 36000 0 EST}
-    {47138400 36000 0 EST}
-    {57686400 39600 1 EST}
-    {67968000 36000 0 EST}
-    {89136000 39600 1 EST}
-    {100022400 36000 0 EST}
-    {120585600 39600 1 EST}
-    {131472000 36000 0 EST}
-    {152035200 39600 1 EST}
-    {162921600 36000 0 EST}
-    {183484800 39600 1 EST}
-    {194976000 36000 0 EST}
-    {215539200 39600 1 EST}
-    {226425600 36000 0 EST}
-    {246988800 39600 1 EST}
-    {257875200 36000 0 EST}
-    {278438400 39600 1 EST}
-    {289324800 36000 0 EST}
-    {309888000 39600 1 EST}
-    {320774400 36000 0 EST}
-    {341337600 39600 1 EST}
-    {352224000 36000 0 EST}
-    {372787200 39600 1 EST}
-    {386092800 36000 0 EST}
-    {404841600 39600 1 EST}
-    {417542400 36000 0 EST}
-    {436291200 39600 1 EST}
-    {447177600 36000 0 EST}
-    {467740800 39600 1 EST}
-    {478627200 36000 0 EST}
-    {499190400 39600 1 EST}
-    {510076800 36000 0 EST}
-    {530035200 39600 1 EST}
-    {542736000 36000 0 EST}
-    {562089600 39600 1 EST}
-    {574790400 36000 0 EST}
-    {594144000 39600 1 EST}
-    {606240000 36000 0 EST}
-    {625593600 39600 1 EST}
-    {637689600 36000 0 EST}
-    {657043200 39600 1 EST}
-    {670348800 36000 0 EST}
-    {686678400 39600 1 EST}
-    {701798400 36000 0 EST}
-    {718128000 39600 1 EST}
-    {733248000 36000 0 EST}
-    {749577600 39600 1 EST}
-    {764697600 36000 0 EST}
-    {781027200 39600 1 EST}
-    {796147200 36000 0 EST}
-    {812476800 39600 1 EST}
-    {828201600 36000 0 EST}
-    {844531200 39600 1 EST}
-    {859651200 36000 0 EST}
-    {875980800 39600 1 EST}
-    {891100800 36000 0 EST}
-    {907430400 39600 1 EST}
-    {922550400 36000 0 EST}
-    {938880000 39600 1 EST}
-    {954000000 36000 0 EST}
-    {967305600 39600 1 EST}
-    {985449600 36000 0 EST}
-    {1002384000 39600 1 EST}
-    {1017504000 36000 0 EST}
-    {1033833600 39600 1 EST}
-    {1048953600 36000 0 EST}
-    {1065283200 39600 1 EST}
-    {1080403200 36000 0 EST}
-    {1096732800 39600 1 EST}
-    {1111852800 36000 0 EST}
-    {1128182400 39600 1 EST}
-    {1143907200 36000 0 EST}
-    {1159632000 39600 1 EST}
-    {1174752000 36000 0 EST}
-    {1191686400 39600 1 EST}
-    {1207411200 36000 0 EST}
-    {1223136000 39600 1 EST}
-    {1238860800 36000 0 EST}
-    {1254585600 39600 1 EST}
-    {1270310400 36000 0 EST}
-    {1286035200 39600 1 EST}
-    {1301760000 36000 0 EST}
-    {1317484800 39600 1 EST}
-    {1333209600 36000 0 EST}
-    {1349539200 39600 1 EST}
-    {1365264000 36000 0 EST}
-    {1380988800 39600 1 EST}
-    {1396713600 36000 0 EST}
-    {1412438400 39600 1 EST}
-    {1428163200 36000 0 EST}
-    {1443888000 39600 1 EST}
-    {1459612800 36000 0 EST}
-    {1475337600 39600 1 EST}
-    {1491062400 36000 0 EST}
-    {1506787200 39600 1 EST}
-    {1522512000 36000 0 EST}
-    {1538841600 39600 1 EST}
-    {1554566400 36000 0 EST}
-    {1570291200 39600 1 EST}
-    {1586016000 36000 0 EST}
-    {1601740800 39600 1 EST}
-    {1617465600 36000 0 EST}
-    {1633190400 39600 1 EST}
-    {1648915200 36000 0 EST}
-    {1664640000 39600 1 EST}
-    {1680364800 36000 0 EST}
-    {1696089600 39600 1 EST}
-    {1712419200 36000 0 EST}
-    {1728144000 39600 1 EST}
-    {1743868800 36000 0 EST}
-    {1759593600 39600 1 EST}
-    {1775318400 36000 0 EST}
-    {1791043200 39600 1 EST}
-    {1806768000 36000 0 EST}
-    {1822492800 39600 1 EST}
-    {1838217600 36000 0 EST}
-    {1853942400 39600 1 EST}
-    {1869667200 36000 0 EST}
-    {1885996800 39600 1 EST}
-    {1901721600 36000 0 EST}
-    {1917446400 39600 1 EST}
-    {1933171200 36000 0 EST}
-    {1948896000 39600 1 EST}
-    {1964620800 36000 0 EST}
-    {1980345600 39600 1 EST}
-    {1996070400 36000 0 EST}
-    {2011795200 39600 1 EST}
-    {2027520000 36000 0 EST}
-    {2043244800 39600 1 EST}
-    {2058969600 36000 0 EST}
-    {2075299200 39600 1 EST}
-    {2091024000 36000 0 EST}
-    {2106748800 39600 1 EST}
-    {2122473600 36000 0 EST}
-    {2138198400 39600 1 EST}
-    {2153923200 36000 0 EST}
-    {2169648000 39600 1 EST}
-    {2185372800 36000 0 EST}
-    {2201097600 39600 1 EST}
-    {2216822400 36000 0 EST}
-    {2233152000 39600 1 EST}
-    {2248876800 36000 0 EST}
-    {2264601600 39600 1 EST}
-    {2280326400 36000 0 EST}
-    {2296051200 39600 1 EST}
-    {2311776000 36000 0 EST}
-    {2327500800 39600 1 EST}
-    {2343225600 36000 0 EST}
-    {2358950400 39600 1 EST}
-    {2374675200 36000 0 EST}
-    {2390400000 39600 1 EST}
-    {2406124800 36000 0 EST}
-    {2422454400 39600 1 EST}
-    {2438179200 36000 0 EST}
-    {2453904000 39600 1 EST}
-    {2469628800 36000 0 EST}
-    {2485353600 39600 1 EST}
-    {2501078400 36000 0 EST}
-    {2516803200 39600 1 EST}
-    {2532528000 36000 0 EST}
-    {2548252800 39600 1 EST}
-    {2563977600 36000 0 EST}
-    {2579702400 39600 1 EST}
-    {2596032000 36000 0 EST}
-    {2611756800 39600 1 EST}
-    {2627481600 36000 0 EST}
-    {2643206400 39600 1 EST}
-    {2658931200 36000 0 EST}
-    {2674656000 39600 1 EST}
-    {2690380800 36000 0 EST}
-    {2706105600 39600 1 EST}
-    {2721830400 36000 0 EST}
-    {2737555200 39600 1 EST}
-    {2753280000 36000 0 EST}
-    {2769609600 39600 1 EST}
-    {2785334400 36000 0 EST}
-    {2801059200 39600 1 EST}
-    {2816784000 36000 0 EST}
-    {2832508800 39600 1 EST}
-    {2848233600 36000 0 EST}
-    {2863958400 39600 1 EST}
-    {2879683200 36000 0 EST}
-    {2895408000 39600 1 EST}
-    {2911132800 36000 0 EST}
-    {2926857600 39600 1 EST}
-    {2942582400 36000 0 EST}
-    {2958912000 39600 1 EST}
-    {2974636800 36000 0 EST}
-    {2990361600 39600 1 EST}
-    {3006086400 36000 0 EST}
-    {3021811200 39600 1 EST}
-    {3037536000 36000 0 EST}
-    {3053260800 39600 1 EST}
-    {3068985600 36000 0 EST}
-    {3084710400 39600 1 EST}
-    {3100435200 36000 0 EST}
-    {3116764800 39600 1 EST}
-    {3132489600 36000 0 EST}
-    {3148214400 39600 1 EST}
-    {3163939200 36000 0 EST}
-    {3179664000 39600 1 EST}
-    {3195388800 36000 0 EST}
-    {3211113600 39600 1 EST}
-    {3226838400 36000 0 EST}
-    {3242563200 39600 1 EST}
-    {3258288000 36000 0 EST}
-    {3274012800 39600 1 EST}
-    {3289737600 36000 0 EST}
-    {3306067200 39600 1 EST}
-    {3321792000 36000 0 EST}
-    {3337516800 39600 1 EST}
-    {3353241600 36000 0 EST}
-    {3368966400 39600 1 EST}
-    {3384691200 36000 0 EST}
-    {3400416000 39600 1 EST}
-    {3416140800 36000 0 EST}
-    {3431865600 39600 1 EST}
-    {3447590400 36000 0 EST}
-    {3463315200 39600 1 EST}
-    {3479644800 36000 0 EST}
-    {3495369600 39600 1 EST}
-    {3511094400 36000 0 EST}
-    {3526819200 39600 1 EST}
-    {3542544000 36000 0 EST}
-    {3558268800 39600 1 EST}
-    {3573993600 36000 0 EST}
-    {3589718400 39600 1 EST}
-    {3605443200 36000 0 EST}
-    {3621168000 39600 1 EST}
-    {3636892800 36000 0 EST}
-    {3653222400 39600 1 EST}
-    {3668947200 36000 0 EST}
-    {3684672000 39600 1 EST}
-    {3700396800 36000 0 EST}
-    {3716121600 39600 1 EST}
-    {3731846400 36000 0 EST}
-    {3747571200 39600 1 EST}
-    {3763296000 36000 0 EST}
-    {3779020800 39600 1 EST}
-    {3794745600 36000 0 EST}
-    {3810470400 39600 1 EST}
-    {3826195200 36000 0 EST}
-    {3842524800 39600 1 EST}
-    {3858249600 36000 0 EST}
-    {3873974400 39600 1 EST}
-    {3889699200 36000 0 EST}
-    {3905424000 39600 1 EST}
-    {3921148800 36000 0 EST}
-    {3936873600 39600 1 EST}
-    {3952598400 36000 0 EST}
-    {3968323200 39600 1 EST}
-    {3984048000 36000 0 EST}
-    {4000377600 39600 1 EST}
-    {4016102400 36000 0 EST}
-    {4031827200 39600 1 EST}
-    {4047552000 36000 0 EST}
-    {4063276800 39600 1 EST}
-    {4079001600 36000 0 EST}
-    {4094726400 39600 1 EST}
+    {-2345794528 36000 0 AEST}
+    {-1680508800 39600 1 AEDT}
+    {-1669892400 39600 0 AEDT}
+    {-1665392400 36000 0 AEST}
+    {-883641600 39600 1 AEDT}
+    {-876128400 36000 0 AEST}
+    {-860400000 39600 1 AEDT}
+    {-844678800 36000 0 AEST}
+    {-828345600 39600 1 AEDT}
+    {-813229200 36000 0 AEST}
+    {47138400 36000 0 AEST}
+    {57686400 39600 1 AEDT}
+    {67968000 36000 0 AEST}
+    {89136000 39600 1 AEDT}
+    {100022400 36000 0 AEST}
+    {120585600 39600 1 AEDT}
+    {131472000 36000 0 AEST}
+    {152035200 39600 1 AEDT}
+    {162921600 36000 0 AEST}
+    {183484800 39600 1 AEDT}
+    {194976000 36000 0 AEST}
+    {215539200 39600 1 AEDT}
+    {226425600 36000 0 AEST}
+    {246988800 39600 1 AEDT}
+    {257875200 36000 0 AEST}
+    {278438400 39600 1 AEDT}
+    {289324800 36000 0 AEST}
+    {309888000 39600 1 AEDT}
+    {320774400 36000 0 AEST}
+    {341337600 39600 1 AEDT}
+    {352224000 36000 0 AEST}
+    {372787200 39600 1 AEDT}
+    {386092800 36000 0 AEST}
+    {404841600 39600 1 AEDT}
+    {417542400 36000 0 AEST}
+    {436291200 39600 1 AEDT}
+    {447177600 36000 0 AEST}
+    {467740800 39600 1 AEDT}
+    {478627200 36000 0 AEST}
+    {499190400 39600 1 AEDT}
+    {510076800 36000 0 AEST}
+    {530035200 39600 1 AEDT}
+    {542736000 36000 0 AEST}
+    {562089600 39600 1 AEDT}
+    {574790400 36000 0 AEST}
+    {594144000 39600 1 AEDT}
+    {606240000 36000 0 AEST}
+    {625593600 39600 1 AEDT}
+    {637689600 36000 0 AEST}
+    {657043200 39600 1 AEDT}
+    {670348800 36000 0 AEST}
+    {686678400 39600 1 AEDT}
+    {701798400 36000 0 AEST}
+    {718128000 39600 1 AEDT}
+    {733248000 36000 0 AEST}
+    {749577600 39600 1 AEDT}
+    {764697600 36000 0 AEST}
+    {781027200 39600 1 AEDT}
+    {796147200 36000 0 AEST}
+    {812476800 39600 1 AEDT}
+    {828201600 36000 0 AEST}
+    {844531200 39600 1 AEDT}
+    {859651200 36000 0 AEST}
+    {875980800 39600 1 AEDT}
+    {891100800 36000 0 AEST}
+    {907430400 39600 1 AEDT}
+    {922550400 36000 0 AEST}
+    {938880000 39600 1 AEDT}
+    {954000000 36000 0 AEST}
+    {967305600 39600 1 AEDT}
+    {985449600 36000 0 AEST}
+    {1002384000 39600 1 AEDT}
+    {1017504000 36000 0 AEST}
+    {1033833600 39600 1 AEDT}
+    {1048953600 36000 0 AEST}
+    {1065283200 39600 1 AEDT}
+    {1080403200 36000 0 AEST}
+    {1096732800 39600 1 AEDT}
+    {1111852800 36000 0 AEST}
+    {1128182400 39600 1 AEDT}
+    {1143907200 36000 0 AEST}
+    {1159632000 39600 1 AEDT}
+    {1174752000 36000 0 AEST}
+    {1191686400 39600 1 AEDT}
+    {1207411200 36000 0 AEST}
+    {1223136000 39600 1 AEDT}
+    {1238860800 36000 0 AEST}
+    {1254585600 39600 1 AEDT}
+    {1270310400 36000 0 AEST}
+    {1286035200 39600 1 AEDT}
+    {1301760000 36000 0 AEST}
+    {1317484800 39600 1 AEDT}
+    {1333209600 36000 0 AEST}
+    {1349539200 39600 1 AEDT}
+    {1365264000 36000 0 AEST}
+    {1380988800 39600 1 AEDT}
+    {1396713600 36000 0 AEST}
+    {1412438400 39600 1 AEDT}
+    {1428163200 36000 0 AEST}
+    {1443888000 39600 1 AEDT}
+    {1459612800 36000 0 AEST}
+    {1475337600 39600 1 AEDT}
+    {1491062400 36000 0 AEST}
+    {1506787200 39600 1 AEDT}
+    {1522512000 36000 0 AEST}
+    {1538841600 39600 1 AEDT}
+    {1554566400 36000 0 AEST}
+    {1570291200 39600 1 AEDT}
+    {1586016000 36000 0 AEST}
+    {1601740800 39600 1 AEDT}
+    {1617465600 36000 0 AEST}
+    {1633190400 39600 1 AEDT}
+    {1648915200 36000 0 AEST}
+    {1664640000 39600 1 AEDT}
+    {1680364800 36000 0 AEST}
+    {1696089600 39600 1 AEDT}
+    {1712419200 36000 0 AEST}
+    {1728144000 39600 1 AEDT}
+    {1743868800 36000 0 AEST}
+    {1759593600 39600 1 AEDT}
+    {1775318400 36000 0 AEST}
+    {1791043200 39600 1 AEDT}
+    {1806768000 36000 0 AEST}
+    {1822492800 39600 1 AEDT}
+    {1838217600 36000 0 AEST}
+    {1853942400 39600 1 AEDT}
+    {1869667200 36000 0 AEST}
+    {1885996800 39600 1 AEDT}
+    {1901721600 36000 0 AEST}
+    {1917446400 39600 1 AEDT}
+    {1933171200 36000 0 AEST}
+    {1948896000 39600 1 AEDT}
+    {1964620800 36000 0 AEST}
+    {1980345600 39600 1 AEDT}
+    {1996070400 36000 0 AEST}
+    {2011795200 39600 1 AEDT}
+    {2027520000 36000 0 AEST}
+    {2043244800 39600 1 AEDT}
+    {2058969600 36000 0 AEST}
+    {2075299200 39600 1 AEDT}
+    {2091024000 36000 0 AEST}
+    {2106748800 39600 1 AEDT}
+    {2122473600 36000 0 AEST}
+    {2138198400 39600 1 AEDT}
+    {2153923200 36000 0 AEST}
+    {2169648000 39600 1 AEDT}
+    {2185372800 36000 0 AEST}
+    {2201097600 39600 1 AEDT}
+    {2216822400 36000 0 AEST}
+    {2233152000 39600 1 AEDT}
+    {2248876800 36000 0 AEST}
+    {2264601600 39600 1 AEDT}
+    {2280326400 36000 0 AEST}
+    {2296051200 39600 1 AEDT}
+    {2311776000 36000 0 AEST}
+    {2327500800 39600 1 AEDT}
+    {2343225600 36000 0 AEST}
+    {2358950400 39600 1 AEDT}
+    {2374675200 36000 0 AEST}
+    {2390400000 39600 1 AEDT}
+    {2406124800 36000 0 AEST}
+    {2422454400 39600 1 AEDT}
+    {2438179200 36000 0 AEST}
+    {2453904000 39600 1 AEDT}
+    {2469628800 36000 0 AEST}
+    {2485353600 39600 1 AEDT}
+    {2501078400 36000 0 AEST}
+    {2516803200 39600 1 AEDT}
+    {2532528000 36000 0 AEST}
+    {2548252800 39600 1 AEDT}
+    {2563977600 36000 0 AEST}
+    {2579702400 39600 1 AEDT}
+    {2596032000 36000 0 AEST}
+    {2611756800 39600 1 AEDT}
+    {2627481600 36000 0 AEST}
+    {2643206400 39600 1 AEDT}
+    {2658931200 36000 0 AEST}
+    {2674656000 39600 1 AEDT}
+    {2690380800 36000 0 AEST}
+    {2706105600 39600 1 AEDT}
+    {2721830400 36000 0 AEST}
+    {2737555200 39600 1 AEDT}
+    {2753280000 36000 0 AEST}
+    {2769609600 39600 1 AEDT}
+    {2785334400 36000 0 AEST}
+    {2801059200 39600 1 AEDT}
+    {2816784000 36000 0 AEST}
+    {2832508800 39600 1 AEDT}
+    {2848233600 36000 0 AEST}
+    {2863958400 39600 1 AEDT}
+    {2879683200 36000 0 AEST}
+    {2895408000 39600 1 AEDT}
+    {2911132800 36000 0 AEST}
+    {2926857600 39600 1 AEDT}
+    {2942582400 36000 0 AEST}
+    {2958912000 39600 1 AEDT}
+    {2974636800 36000 0 AEST}
+    {2990361600 39600 1 AEDT}
+    {3006086400 36000 0 AEST}
+    {3021811200 39600 1 AEDT}
+    {3037536000 36000 0 AEST}
+    {3053260800 39600 1 AEDT}
+    {3068985600 36000 0 AEST}
+    {3084710400 39600 1 AEDT}
+    {3100435200 36000 0 AEST}
+    {3116764800 39600 1 AEDT}
+    {3132489600 36000 0 AEST}
+    {3148214400 39600 1 AEDT}
+    {3163939200 36000 0 AEST}
+    {3179664000 39600 1 AEDT}
+    {3195388800 36000 0 AEST}
+    {3211113600 39600 1 AEDT}
+    {3226838400 36000 0 AEST}
+    {3242563200 39600 1 AEDT}
+    {3258288000 36000 0 AEST}
+    {3274012800 39600 1 AEDT}
+    {3289737600 36000 0 AEST}
+    {3306067200 39600 1 AEDT}
+    {3321792000 36000 0 AEST}
+    {3337516800 39600 1 AEDT}
+    {3353241600 36000 0 AEST}
+    {3368966400 39600 1 AEDT}
+    {3384691200 36000 0 AEST}
+    {3400416000 39600 1 AEDT}
+    {3416140800 36000 0 AEST}
+    {3431865600 39600 1 AEDT}
+    {3447590400 36000 0 AEST}
+    {3463315200 39600 1 AEDT}
+    {3479644800 36000 0 AEST}
+    {3495369600 39600 1 AEDT}
+    {3511094400 36000 0 AEST}
+    {3526819200 39600 1 AEDT}
+    {3542544000 36000 0 AEST}
+    {3558268800 39600 1 AEDT}
+    {3573993600 36000 0 AEST}
+    {3589718400 39600 1 AEDT}
+    {3605443200 36000 0 AEST}
+    {3621168000 39600 1 AEDT}
+    {3636892800 36000 0 AEST}
+    {3653222400 39600 1 AEDT}
+    {3668947200 36000 0 AEST}
+    {3684672000 39600 1 AEDT}
+    {3700396800 36000 0 AEST}
+    {3716121600 39600 1 AEDT}
+    {3731846400 36000 0 AEST}
+    {3747571200 39600 1 AEDT}
+    {3763296000 36000 0 AEST}
+    {3779020800 39600 1 AEDT}
+    {3794745600 36000 0 AEST}
+    {3810470400 39600 1 AEDT}
+    {3826195200 36000 0 AEST}
+    {3842524800 39600 1 AEDT}
+    {3858249600 36000 0 AEST}
+    {3873974400 39600 1 AEDT}
+    {3889699200 36000 0 AEST}
+    {3905424000 39600 1 AEDT}
+    {3921148800 36000 0 AEST}
+    {3936873600 39600 1 AEDT}
+    {3952598400 36000 0 AEST}
+    {3968323200 39600 1 AEDT}
+    {3984048000 36000 0 AEST}
+    {4000377600 39600 1 AEDT}
+    {4016102400 36000 0 AEST}
+    {4031827200 39600 1 AEDT}
+    {4047552000 36000 0 AEST}
+    {4063276800 39600 1 AEDT}
+    {4079001600 36000 0 AEST}
+    {4094726400 39600 1 AEDT}
 }
diff --git a/library/tzdata/Australia/Darwin b/library/tzdata/Australia/Darwin
index 9be372d..e77605d 100644
--- a/library/tzdata/Australia/Darwin
+++ b/library/tzdata/Australia/Darwin
@@ -2,14 +2,14 @@
 
 set TZData(:Australia/Darwin) {
     {-9223372036854775808 31400 0 LMT}
-    {-2364108200 32400 0 CST}
-    {-2230189200 34200 0 CST}
-    {-1672565340 37800 1 CST}
-    {-1665390600 34200 0 CST}
-    {-883639800 37800 1 CST}
-    {-876126600 34200 0 CST}
-    {-860398200 37800 1 CST}
-    {-844677000 34200 0 CST}
-    {-828343800 37800 1 CST}
-    {-813227400 34200 0 CST}
+    {-2364108200 32400 0 ACST}
+    {-2230189200 34200 0 ACST}
+    {-1672565340 37800 1 ACDT}
+    {-1665390600 34200 0 ACST}
+    {-883639800 37800 1 ACDT}
+    {-876126600 34200 0 ACST}
+    {-860398200 37800 1 ACDT}
+    {-844677000 34200 0 ACST}
+    {-828343800 37800 1 ACDT}
+    {-813227400 34200 0 ACST}
 }
diff --git a/library/tzdata/Australia/Eucla b/library/tzdata/Australia/Eucla
index 0f8ed4d..08a1948 100755
--- a/library/tzdata/Australia/Eucla
+++ b/library/tzdata/Australia/Eucla
@@ -2,24 +2,24 @@
 
 set TZData(:Australia/Eucla) {
     {-9223372036854775808 30928 0 LMT}
-    {-2337928528 31500 0 CWST}
-    {-1672562640 35100 1 CWST}
-    {-1665387900 31500 0 CWST}
-    {-883637100 35100 1 CWST}
-    {-876123900 31500 0 CWST}
-    {-860395500 35100 1 CWST}
-    {-844674300 31500 0 CWST}
-    {-836473500 35100 0 CWST}
-    {152039700 35100 1 CWST}
-    {162926100 31500 0 CWST}
-    {436295700 35100 1 CWST}
-    {447182100 31500 0 CWST}
-    {690311700 35100 1 CWST}
-    {699383700 31500 0 CWST}
-    {1165079700 35100 1 CWST}
-    {1174756500 31500 0 CWST}
-    {1193505300 35100 1 CWST}
-    {1206810900 31500 0 CWST}
-    {1224954900 35100 1 CWST}
-    {1238260500 31500 0 CWST}
+    {-2337928528 31500 0 ACWST}
+    {-1672562640 35100 1 ACWDT}
+    {-1665387900 31500 0 ACWST}
+    {-883637100 35100 1 ACWDT}
+    {-876123900 31500 0 ACWST}
+    {-860395500 35100 1 ACWDT}
+    {-844674300 31500 0 ACWST}
+    {-836473500 35100 0 ACWST}
+    {152039700 35100 1 ACWDT}
+    {162926100 31500 0 ACWST}
+    {436295700 35100 1 ACWDT}
+    {447182100 31500 0 ACWST}
+    {690311700 35100 1 ACWDT}
+    {699383700 31500 0 ACWST}
+    {1165079700 35100 1 ACWDT}
+    {1174756500 31500 0 ACWST}
+    {1193505300 35100 1 ACWDT}
+    {1206810900 31500 0 ACWST}
+    {1224954900 35100 1 ACWDT}
+    {1238260500 31500 0 ACWST}
 }
diff --git a/library/tzdata/Australia/Hobart b/library/tzdata/Australia/Hobart
index 8f27110..bf5adf0 100644
--- a/library/tzdata/Australia/Hobart
+++ b/library/tzdata/Australia/Hobart
@@ -2,280 +2,280 @@
 
 set TZData(:Australia/Hobart) {
     {-9223372036854775808 35356 0 LMT}
-    {-2345795356 36000 0 EST}
-    {-1680508800 39600 1 EST}
-    {-1669892400 39600 0 EST}
-    {-1665392400 36000 0 EST}
-    {-883641600 39600 1 EST}
-    {-876128400 36000 0 EST}
-    {-860400000 39600 1 EST}
-    {-844678800 36000 0 EST}
-    {-828345600 39600 1 EST}
-    {-813229200 36000 0 EST}
-    {-94730400 36000 0 EST}
-    {-71136000 39600 1 EST}
-    {-55411200 36000 0 EST}
-    {-37267200 39600 1 EST}
-    {-25776000 36000 0 EST}
-    {-5817600 39600 1 EST}
-    {5673600 36000 0 EST}
-    {25632000 39600 1 EST}
-    {37728000 36000 0 EST}
-    {57686400 39600 1 EST}
-    {67968000 36000 0 EST}
-    {89136000 39600 1 EST}
-    {100022400 36000 0 EST}
-    {120585600 39600 1 EST}
-    {131472000 36000 0 EST}
-    {152035200 39600 1 EST}
-    {162921600 36000 0 EST}
-    {183484800 39600 1 EST}
-    {194976000 36000 0 EST}
-    {215539200 39600 1 EST}
-    {226425600 36000 0 EST}
-    {246988800 39600 1 EST}
-    {257875200 36000 0 EST}
-    {278438400 39600 1 EST}
-    {289324800 36000 0 EST}
-    {309888000 39600 1 EST}
-    {320774400 36000 0 EST}
-    {341337600 39600 1 EST}
-    {352224000 36000 0 EST}
-    {372787200 39600 1 EST}
-    {386092800 36000 0 EST}
-    {404841600 39600 1 EST}
-    {417542400 36000 0 EST}
-    {436291200 39600 1 EST}
-    {447177600 36000 0 EST}
-    {467740800 39600 1 EST}
-    {478627200 36000 0 EST}
-    {499190400 39600 1 EST}
-    {510076800 36000 0 EST}
-    {530035200 39600 1 EST}
-    {542736000 36000 0 EST}
-    {562089600 39600 1 EST}
-    {574790400 36000 0 EST}
-    {594144000 39600 1 EST}
-    {606240000 36000 0 EST}
-    {625593600 39600 1 EST}
-    {637689600 36000 0 EST}
-    {657043200 39600 1 EST}
-    {670348800 36000 0 EST}
-    {686678400 39600 1 EST}
-    {701798400 36000 0 EST}
-    {718128000 39600 1 EST}
-    {733248000 36000 0 EST}
-    {749577600 39600 1 EST}
-    {764697600 36000 0 EST}
-    {781027200 39600 1 EST}
-    {796147200 36000 0 EST}
-    {812476800 39600 1 EST}
-    {828201600 36000 0 EST}
-    {844531200 39600 1 EST}
-    {859651200 36000 0 EST}
-    {875980800 39600 1 EST}
-    {891100800 36000 0 EST}
-    {907430400 39600 1 EST}
-    {922550400 36000 0 EST}
-    {938880000 39600 1 EST}
-    {954000000 36000 0 EST}
-    {967305600 39600 1 EST}
-    {985449600 36000 0 EST}
-    {1002384000 39600 1 EST}
-    {1017504000 36000 0 EST}
-    {1033833600 39600 1 EST}
-    {1048953600 36000 0 EST}
-    {1065283200 39600 1 EST}
-    {1080403200 36000 0 EST}
-    {1096732800 39600 1 EST}
-    {1111852800 36000 0 EST}
-    {1128182400 39600 1 EST}
-    {1143907200 36000 0 EST}
-    {1159632000 39600 1 EST}
-    {1174752000 36000 0 EST}
-    {1191686400 39600 1 EST}
-    {1207411200 36000 0 EST}
-    {1223136000 39600 1 EST}
-    {1238860800 36000 0 EST}
-    {1254585600 39600 1 EST}
-    {1270310400 36000 0 EST}
-    {1286035200 39600 1 EST}
-    {1301760000 36000 0 EST}
-    {1317484800 39600 1 EST}
-    {1333209600 36000 0 EST}
-    {1349539200 39600 1 EST}
-    {1365264000 36000 0 EST}
-    {1380988800 39600 1 EST}
-    {1396713600 36000 0 EST}
-    {1412438400 39600 1 EST}
-    {1428163200 36000 0 EST}
-    {1443888000 39600 1 EST}
-    {1459612800 36000 0 EST}
-    {1475337600 39600 1 EST}
-    {1491062400 36000 0 EST}
-    {1506787200 39600 1 EST}
-    {1522512000 36000 0 EST}
-    {1538841600 39600 1 EST}
-    {1554566400 36000 0 EST}
-    {1570291200 39600 1 EST}
-    {1586016000 36000 0 EST}
-    {1601740800 39600 1 EST}
-    {1617465600 36000 0 EST}
-    {1633190400 39600 1 EST}
-    {1648915200 36000 0 EST}
-    {1664640000 39600 1 EST}
-    {1680364800 36000 0 EST}
-    {1696089600 39600 1 EST}
-    {1712419200 36000 0 EST}
-    {1728144000 39600 1 EST}
-    {1743868800 36000 0 EST}
-    {1759593600 39600 1 EST}
-    {1775318400 36000 0 EST}
-    {1791043200 39600 1 EST}
-    {1806768000 36000 0 EST}
-    {1822492800 39600 1 EST}
-    {1838217600 36000 0 EST}
-    {1853942400 39600 1 EST}
-    {1869667200 36000 0 EST}
-    {1885996800 39600 1 EST}
-    {1901721600 36000 0 EST}
-    {1917446400 39600 1 EST}
-    {1933171200 36000 0 EST}
-    {1948896000 39600 1 EST}
-    {1964620800 36000 0 EST}
-    {1980345600 39600 1 EST}
-    {1996070400 36000 0 EST}
-    {2011795200 39600 1 EST}
-    {2027520000 36000 0 EST}
-    {2043244800 39600 1 EST}
-    {2058969600 36000 0 EST}
-    {2075299200 39600 1 EST}
-    {2091024000 36000 0 EST}
-    {2106748800 39600 1 EST}
-    {2122473600 36000 0 EST}
-    {2138198400 39600 1 EST}
-    {2153923200 36000 0 EST}
-    {2169648000 39600 1 EST}
-    {2185372800 36000 0 EST}
-    {2201097600 39600 1 EST}
-    {2216822400 36000 0 EST}
-    {2233152000 39600 1 EST}
-    {2248876800 36000 0 EST}
-    {2264601600 39600 1 EST}
-    {2280326400 36000 0 EST}
-    {2296051200 39600 1 EST}
-    {2311776000 36000 0 EST}
-    {2327500800 39600 1 EST}
-    {2343225600 36000 0 EST}
-    {2358950400 39600 1 EST}
-    {2374675200 36000 0 EST}
-    {2390400000 39600 1 EST}
-    {2406124800 36000 0 EST}
-    {2422454400 39600 1 EST}
-    {2438179200 36000 0 EST}
-    {2453904000 39600 1 EST}
-    {2469628800 36000 0 EST}
-    {2485353600 39600 1 EST}
-    {2501078400 36000 0 EST}
-    {2516803200 39600 1 EST}
-    {2532528000 36000 0 EST}
-    {2548252800 39600 1 EST}
-    {2563977600 36000 0 EST}
-    {2579702400 39600 1 EST}
-    {2596032000 36000 0 EST}
-    {2611756800 39600 1 EST}
-    {2627481600 36000 0 EST}
-    {2643206400 39600 1 EST}
-    {2658931200 36000 0 EST}
-    {2674656000 39600 1 EST}
-    {2690380800 36000 0 EST}
-    {2706105600 39600 1 EST}
-    {2721830400 36000 0 EST}
-    {2737555200 39600 1 EST}
-    {2753280000 36000 0 EST}
-    {2769609600 39600 1 EST}
-    {2785334400 36000 0 EST}
-    {2801059200 39600 1 EST}
-    {2816784000 36000 0 EST}
-    {2832508800 39600 1 EST}
-    {2848233600 36000 0 EST}
-    {2863958400 39600 1 EST}
-    {2879683200 36000 0 EST}
-    {2895408000 39600 1 EST}
-    {2911132800 36000 0 EST}
-    {2926857600 39600 1 EST}
-    {2942582400 36000 0 EST}
-    {2958912000 39600 1 EST}
-    {2974636800 36000 0 EST}
-    {2990361600 39600 1 EST}
-    {3006086400 36000 0 EST}
-    {3021811200 39600 1 EST}
-    {3037536000 36000 0 EST}
-    {3053260800 39600 1 EST}
-    {3068985600 36000 0 EST}
-    {3084710400 39600 1 EST}
-    {3100435200 36000 0 EST}
-    {3116764800 39600 1 EST}
-    {3132489600 36000 0 EST}
-    {3148214400 39600 1 EST}
-    {3163939200 36000 0 EST}
-    {3179664000 39600 1 EST}
-    {3195388800 36000 0 EST}
-    {3211113600 39600 1 EST}
-    {3226838400 36000 0 EST}
-    {3242563200 39600 1 EST}
-    {3258288000 36000 0 EST}
-    {3274012800 39600 1 EST}
-    {3289737600 36000 0 EST}
-    {3306067200 39600 1 EST}
-    {3321792000 36000 0 EST}
-    {3337516800 39600 1 EST}
-    {3353241600 36000 0 EST}
-    {3368966400 39600 1 EST}
-    {3384691200 36000 0 EST}
-    {3400416000 39600 1 EST}
-    {3416140800 36000 0 EST}
-    {3431865600 39600 1 EST}
-    {3447590400 36000 0 EST}
-    {3463315200 39600 1 EST}
-    {3479644800 36000 0 EST}
-    {3495369600 39600 1 EST}
-    {3511094400 36000 0 EST}
-    {3526819200 39600 1 EST}
-    {3542544000 36000 0 EST}
-    {3558268800 39600 1 EST}
-    {3573993600 36000 0 EST}
-    {3589718400 39600 1 EST}
-    {3605443200 36000 0 EST}
-    {3621168000 39600 1 EST}
-    {3636892800 36000 0 EST}
-    {3653222400 39600 1 EST}
-    {3668947200 36000 0 EST}
-    {3684672000 39600 1 EST}
-    {3700396800 36000 0 EST}
-    {3716121600 39600 1 EST}
-    {3731846400 36000 0 EST}
-    {3747571200 39600 1 EST}
-    {3763296000 36000 0 EST}
-    {3779020800 39600 1 EST}
-    {3794745600 36000 0 EST}
-    {3810470400 39600 1 EST}
-    {3826195200 36000 0 EST}
-    {3842524800 39600 1 EST}
-    {3858249600 36000 0 EST}
-    {3873974400 39600 1 EST}
-    {3889699200 36000 0 EST}
-    {3905424000 39600 1 EST}
-    {3921148800 36000 0 EST}
-    {3936873600 39600 1 EST}
-    {3952598400 36000 0 EST}
-    {3968323200 39600 1 EST}
-    {3984048000 36000 0 EST}
-    {4000377600 39600 1 EST}
-    {4016102400 36000 0 EST}
-    {4031827200 39600 1 EST}
-    {4047552000 36000 0 EST}
-    {4063276800 39600 1 EST}
-    {4079001600 36000 0 EST}
-    {4094726400 39600 1 EST}
+    {-2345795356 36000 0 AEST}
+    {-1680508800 39600 1 AEDT}
+    {-1669892400 39600 0 AEDT}
+    {-1665392400 36000 0 AEST}
+    {-883641600 39600 1 AEDT}
+    {-876128400 36000 0 AEST}
+    {-860400000 39600 1 AEDT}
+    {-844678800 36000 0 AEST}
+    {-828345600 39600 1 AEDT}
+    {-813229200 36000 0 AEST}
+    {-94730400 36000 0 AEST}
+    {-71136000 39600 1 AEDT}
+    {-55411200 36000 0 AEST}
+    {-37267200 39600 1 AEDT}
+    {-25776000 36000 0 AEST}
+    {-5817600 39600 1 AEDT}
+    {5673600 36000 0 AEST}
+    {25632000 39600 1 AEDT}
+    {37728000 36000 0 AEST}
+    {57686400 39600 1 AEDT}
+    {67968000 36000 0 AEST}
+    {89136000 39600 1 AEDT}
+    {100022400 36000 0 AEST}
+    {120585600 39600 1 AEDT}
+    {131472000 36000 0 AEST}
+    {152035200 39600 1 AEDT}
+    {162921600 36000 0 AEST}
+    {183484800 39600 1 AEDT}
+    {194976000 36000 0 AEST}
+    {215539200 39600 1 AEDT}
+    {226425600 36000 0 AEST}
+    {246988800 39600 1 AEDT}
+    {257875200 36000 0 AEST}
+    {278438400 39600 1 AEDT}
+    {289324800 36000 0 AEST}
+    {309888000 39600 1 AEDT}
+    {320774400 36000 0 AEST}
+    {341337600 39600 1 AEDT}
+    {352224000 36000 0 AEST}
+    {372787200 39600 1 AEDT}
+    {386092800 36000 0 AEST}
+    {404841600 39600 1 AEDT}
+    {417542400 36000 0 AEST}
+    {436291200 39600 1 AEDT}
+    {447177600 36000 0 AEST}
+    {467740800 39600 1 AEDT}
+    {478627200 36000 0 AEST}
+    {499190400 39600 1 AEDT}
+    {510076800 36000 0 AEST}
+    {530035200 39600 1 AEDT}
+    {542736000 36000 0 AEST}
+    {562089600 39600 1 AEDT}
+    {574790400 36000 0 AEST}
+    {594144000 39600 1 AEDT}
+    {606240000 36000 0 AEST}
+    {625593600 39600 1 AEDT}
+    {637689600 36000 0 AEST}
+    {657043200 39600 1 AEDT}
+    {670348800 36000 0 AEST}
+    {686678400 39600 1 AEDT}
+    {701798400 36000 0 AEST}
+    {718128000 39600 1 AEDT}
+    {733248000 36000 0 AEST}
+    {749577600 39600 1 AEDT}
+    {764697600 36000 0 AEST}
+    {781027200 39600 1 AEDT}
+    {796147200 36000 0 AEST}
+    {812476800 39600 1 AEDT}
+    {828201600 36000 0 AEST}
+    {844531200 39600 1 AEDT}
+    {859651200 36000 0 AEST}
+    {875980800 39600 1 AEDT}
+    {891100800 36000 0 AEST}
+    {907430400 39600 1 AEDT}
+    {922550400 36000 0 AEST}
+    {938880000 39600 1 AEDT}
+    {954000000 36000 0 AEST}
+    {967305600 39600 1 AEDT}
+    {985449600 36000 0 AEST}
+    {1002384000 39600 1 AEDT}
+    {1017504000 36000 0 AEST}
+    {1033833600 39600 1 AEDT}
+    {1048953600 36000 0 AEST}
+    {1065283200 39600 1 AEDT}
+    {1080403200 36000 0 AEST}
+    {1096732800 39600 1 AEDT}
+    {1111852800 36000 0 AEST}
+    {1128182400 39600 1 AEDT}
+    {1143907200 36000 0 AEST}
+    {1159632000 39600 1 AEDT}
+    {1174752000 36000 0 AEST}
+    {1191686400 39600 1 AEDT}
+    {1207411200 36000 0 AEST}
+    {1223136000 39600 1 AEDT}
+    {1238860800 36000 0 AEST}
+    {1254585600 39600 1 AEDT}
+    {1270310400 36000 0 AEST}
+    {1286035200 39600 1 AEDT}
+    {1301760000 36000 0 AEST}
+    {1317484800 39600 1 AEDT}
+    {1333209600 36000 0 AEST}
+    {1349539200 39600 1 AEDT}
+    {1365264000 36000 0 AEST}
+    {1380988800 39600 1 AEDT}
+    {1396713600 36000 0 AEST}
+    {1412438400 39600 1 AEDT}
+    {1428163200 36000 0 AEST}
+    {1443888000 39600 1 AEDT}
+    {1459612800 36000 0 AEST}
+    {1475337600 39600 1 AEDT}
+    {1491062400 36000 0 AEST}
+    {1506787200 39600 1 AEDT}
+    {1522512000 36000 0 AEST}
+    {1538841600 39600 1 AEDT}
+    {1554566400 36000 0 AEST}
+    {1570291200 39600 1 AEDT}
+    {1586016000 36000 0 AEST}
+    {1601740800 39600 1 AEDT}
+    {1617465600 36000 0 AEST}
+    {1633190400 39600 1 AEDT}
+    {1648915200 36000 0 AEST}
+    {1664640000 39600 1 AEDT}
+    {1680364800 36000 0 AEST}
+    {1696089600 39600 1 AEDT}
+    {1712419200 36000 0 AEST}
+    {1728144000 39600 1 AEDT}
+    {1743868800 36000 0 AEST}
+    {1759593600 39600 1 AEDT}
+    {1775318400 36000 0 AEST}
+    {1791043200 39600 1 AEDT}
+    {1806768000 36000 0 AEST}
+    {1822492800 39600 1 AEDT}
+    {1838217600 36000 0 AEST}
+    {1853942400 39600 1 AEDT}
+    {1869667200 36000 0 AEST}
+    {1885996800 39600 1 AEDT}
+    {1901721600 36000 0 AEST}
+    {1917446400 39600 1 AEDT}
+    {1933171200 36000 0 AEST}
+    {1948896000 39600 1 AEDT}
+    {1964620800 36000 0 AEST}
+    {1980345600 39600 1 AEDT}
+    {1996070400 36000 0 AEST}
+    {2011795200 39600 1 AEDT}
+    {2027520000 36000 0 AEST}
+    {2043244800 39600 1 AEDT}
+    {2058969600 36000 0 AEST}
+    {2075299200 39600 1 AEDT}
+    {2091024000 36000 0 AEST}
+    {2106748800 39600 1 AEDT}
+    {2122473600 36000 0 AEST}
+    {2138198400 39600 1 AEDT}
+    {2153923200 36000 0 AEST}
+    {2169648000 39600 1 AEDT}
+    {2185372800 36000 0 AEST}
+    {2201097600 39600 1 AEDT}
+    {2216822400 36000 0 AEST}
+    {2233152000 39600 1 AEDT}
+    {2248876800 36000 0 AEST}
+    {2264601600 39600 1 AEDT}
+    {2280326400 36000 0 AEST}
+    {2296051200 39600 1 AEDT}
+    {2311776000 36000 0 AEST}
+    {2327500800 39600 1 AEDT}
+    {2343225600 36000 0 AEST}
+    {2358950400 39600 1 AEDT}
+    {2374675200 36000 0 AEST}
+    {2390400000 39600 1 AEDT}
+    {2406124800 36000 0 AEST}
+    {2422454400 39600 1 AEDT}
+    {2438179200 36000 0 AEST}
+    {2453904000 39600 1 AEDT}
+    {2469628800 36000 0 AEST}
+    {2485353600 39600 1 AEDT}
+    {2501078400 36000 0 AEST}
+    {2516803200 39600 1 AEDT}
+    {2532528000 36000 0 AEST}
+    {2548252800 39600 1 AEDT}
+    {2563977600 36000 0 AEST}
+    {2579702400 39600 1 AEDT}
+    {2596032000 36000 0 AEST}
+    {2611756800 39600 1 AEDT}
+    {2627481600 36000 0 AEST}
+    {2643206400 39600 1 AEDT}
+    {2658931200 36000 0 AEST}
+    {2674656000 39600 1 AEDT}
+    {2690380800 36000 0 AEST}
+    {2706105600 39600 1 AEDT}
+    {2721830400 36000 0 AEST}
+    {2737555200 39600 1 AEDT}
+    {2753280000 36000 0 AEST}
+    {2769609600 39600 1 AEDT}
+    {2785334400 36000 0 AEST}
+    {2801059200 39600 1 AEDT}
+    {2816784000 36000 0 AEST}
+    {2832508800 39600 1 AEDT}
+    {2848233600 36000 0 AEST}
+    {2863958400 39600 1 AEDT}
+    {2879683200 36000 0 AEST}
+    {2895408000 39600 1 AEDT}
+    {2911132800 36000 0 AEST}
+    {2926857600 39600 1 AEDT}
+    {2942582400 36000 0 AEST}
+    {2958912000 39600 1 AEDT}
+    {2974636800 36000 0 AEST}
+    {2990361600 39600 1 AEDT}
+    {3006086400 36000 0 AEST}
+    {3021811200 39600 1 AEDT}
+    {3037536000 36000 0 AEST}
+    {3053260800 39600 1 AEDT}
+    {3068985600 36000 0 AEST}
+    {3084710400 39600 1 AEDT}
+    {3100435200 36000 0 AEST}
+    {3116764800 39600 1 AEDT}
+    {3132489600 36000 0 AEST}
+    {3148214400 39600 1 AEDT}
+    {3163939200 36000 0 AEST}
+    {3179664000 39600 1 AEDT}
+    {3195388800 36000 0 AEST}
+    {3211113600 39600 1 AEDT}
+    {3226838400 36000 0 AEST}
+    {3242563200 39600 1 AEDT}
+    {3258288000 36000 0 AEST}
+    {3274012800 39600 1 AEDT}
+    {3289737600 36000 0 AEST}
+    {3306067200 39600 1 AEDT}
+    {3321792000 36000 0 AEST}
+    {3337516800 39600 1 AEDT}
+    {3353241600 36000 0 AEST}
+    {3368966400 39600 1 AEDT}
+    {3384691200 36000 0 AEST}
+    {3400416000 39600 1 AEDT}
+    {3416140800 36000 0 AEST}
+    {3431865600 39600 1 AEDT}
+    {3447590400 36000 0 AEST}
+    {3463315200 39600 1 AEDT}
+    {3479644800 36000 0 AEST}
+    {3495369600 39600 1 AEDT}
+    {3511094400 36000 0 AEST}
+    {3526819200 39600 1 AEDT}
+    {3542544000 36000 0 AEST}
+    {3558268800 39600 1 AEDT}
+    {3573993600 36000 0 AEST}
+    {3589718400 39600 1 AEDT}
+    {3605443200 36000 0 AEST}
+    {3621168000 39600 1 AEDT}
+    {3636892800 36000 0 AEST}
+    {3653222400 39600 1 AEDT}
+    {3668947200 36000 0 AEST}
+    {3684672000 39600 1 AEDT}
+    {3700396800 36000 0 AEST}
+    {3716121600 39600 1 AEDT}
+    {3731846400 36000 0 AEST}
+    {3747571200 39600 1 AEDT}
+    {3763296000 36000 0 AEST}
+    {3779020800 39600 1 AEDT}
+    {3794745600 36000 0 AEST}
+    {3810470400 39600 1 AEDT}
+    {3826195200 36000 0 AEST}
+    {3842524800 39600 1 AEDT}
+    {3858249600 36000 0 AEST}
+    {3873974400 39600 1 AEDT}
+    {3889699200 36000 0 AEST}
+    {3905424000 39600 1 AEDT}
+    {3921148800 36000 0 AEST}
+    {3936873600 39600 1 AEDT}
+    {3952598400 36000 0 AEST}
+    {3968323200 39600 1 AEDT}
+    {3984048000 36000 0 AEST}
+    {4000377600 39600 1 AEDT}
+    {4016102400 36000 0 AEST}
+    {4031827200 39600 1 AEDT}
+    {4047552000 36000 0 AEST}
+    {4063276800 39600 1 AEDT}
+    {4079001600 36000 0 AEST}
+    {4094726400 39600 1 AEDT}
 }
diff --git a/library/tzdata/Australia/Lindeman b/library/tzdata/Australia/Lindeman
index de11c35..91ad0a6 100644
--- a/library/tzdata/Australia/Lindeman
+++ b/library/tzdata/Australia/Lindeman
@@ -2,27 +2,27 @@
 
 set TZData(:Australia/Lindeman) {
     {-9223372036854775808 35756 0 LMT}
-    {-2366790956 36000 0 EST}
-    {-1672567140 39600 1 EST}
-    {-1665392400 36000 0 EST}
-    {-883641600 39600 1 EST}
-    {-876128400 36000 0 EST}
-    {-860400000 39600 1 EST}
-    {-844678800 36000 0 EST}
-    {-828345600 39600 1 EST}
-    {-813229200 36000 0 EST}
-    {31500000 36000 0 EST}
-    {57686400 39600 1 EST}
-    {67968000 36000 0 EST}
-    {625593600 39600 1 EST}
-    {636480000 36000 0 EST}
-    {657043200 39600 1 EST}
-    {667929600 36000 0 EST}
-    {688492800 39600 1 EST}
-    {699379200 36000 0 EST}
-    {709912800 36000 0 EST}
-    {719942400 39600 1 EST}
-    {731433600 36000 0 EST}
-    {751996800 39600 1 EST}
-    {762883200 36000 0 EST}
+    {-2366790956 36000 0 AEST}
+    {-1672567140 39600 1 AEDT}
+    {-1665392400 36000 0 AEST}
+    {-883641600 39600 1 AEDT}
+    {-876128400 36000 0 AEST}
+    {-860400000 39600 1 AEDT}
+    {-844678800 36000 0 AEST}
+    {-828345600 39600 1 AEDT}
+    {-813229200 36000 0 AEST}
+    {31500000 36000 0 AEST}
+    {57686400 39600 1 AEDT}
+    {67968000 36000 0 AEST}
+    {625593600 39600 1 AEDT}
+    {636480000 36000 0 AEST}
+    {657043200 39600 1 AEDT}
+    {667929600 36000 0 AEST}
+    {688492800 39600 1 AEDT}
+    {699379200 36000 0 AEST}
+    {709912800 36000 0 AEST}
+    {719942400 39600 1 AEDT}
+    {731433600 36000 0 AEST}
+    {751996800 39600 1 AEDT}
+    {762883200 36000 0 AEST}
 }
diff --git a/library/tzdata/Australia/Lord_Howe b/library/tzdata/Australia/Lord_Howe
index da094e5..a8ff80e 100644
--- a/library/tzdata/Australia/Lord_Howe
+++ b/library/tzdata/Australia/Lord_Howe
@@ -2,243 +2,243 @@
 
 set TZData(:Australia/Lord_Howe) {
     {-9223372036854775808 38180 0 LMT}
-    {-2364114980 36000 0 EST}
+    {-2364114980 36000 0 AEST}
     {352216800 37800 0 LHST}
-    {372785400 41400 1 LHST}
+    {372785400 41400 1 LHDT}
     {384273000 37800 0 LHST}
-    {404839800 41400 1 LHST}
+    {404839800 41400 1 LHDT}
     {415722600 37800 0 LHST}
-    {436289400 41400 1 LHST}
+    {436289400 41400 1 LHDT}
     {447172200 37800 0 LHST}
-    {467739000 41400 1 LHST}
+    {467739000 41400 1 LHDT}
     {478621800 37800 0 LHST}
-    {499188600 39600 1 LHST}
+    {499188600 39600 1 LHDT}
     {511282800 37800 0 LHST}
-    {530033400 39600 1 LHST}
+    {530033400 39600 1 LHDT}
     {542732400 37800 0 LHST}
-    {562087800 39600 1 LHST}
+    {562087800 39600 1 LHDT}
     {574786800 37800 0 LHST}
-    {594142200 39600 1 LHST}
+    {594142200 39600 1 LHDT}
     {606236400 37800 0 LHST}
-    {625591800 39600 1 LHST}
+    {625591800 39600 1 LHDT}
     {636476400 37800 0 LHST}
-    {657041400 39600 1 LHST}
+    {657041400 39600 1 LHDT}
     {667926000 37800 0 LHST}
-    {688491000 39600 1 LHST}
+    {688491000 39600 1 LHDT}
     {699375600 37800 0 LHST}
-    {719940600 39600 1 LHST}
+    {719940600 39600 1 LHDT}
     {731430000 37800 0 LHST}
-    {751995000 39600 1 LHST}
+    {751995000 39600 1 LHDT}
     {762879600 37800 0 LHST}
-    {783444600 39600 1 LHST}
+    {783444600 39600 1 LHDT}
     {794329200 37800 0 LHST}
-    {814894200 39600 1 LHST}
+    {814894200 39600 1 LHDT}
     {828198000 37800 0 LHST}
-    {846343800 39600 1 LHST}
+    {846343800 39600 1 LHDT}
     {859647600 37800 0 LHST}
-    {877793400 39600 1 LHST}
+    {877793400 39600 1 LHDT}
     {891097200 37800 0 LHST}
-    {909243000 39600 1 LHST}
+    {909243000 39600 1 LHDT}
     {922546800 37800 0 LHST}
-    {941297400 39600 1 LHST}
+    {941297400 39600 1 LHDT}
     {953996400 37800 0 LHST}
-    {967303800 39600 1 LHST}
+    {967303800 39600 1 LHDT}
     {985446000 37800 0 LHST}
-    {1004196600 39600 1 LHST}
+    {1004196600 39600 1 LHDT}
     {1017500400 37800 0 LHST}
-    {1035646200 39600 1 LHST}
+    {1035646200 39600 1 LHDT}
     {1048950000 37800 0 LHST}
-    {1067095800 39600 1 LHST}
+    {1067095800 39600 1 LHDT}
     {1080399600 37800 0 LHST}
-    {1099150200 39600 1 LHST}
+    {1099150200 39600 1 LHDT}
     {1111849200 37800 0 LHST}
-    {1130599800 39600 1 LHST}
+    {1130599800 39600 1 LHDT}
     {1143903600 37800 0 LHST}
-    {1162049400 39600 1 LHST}
+    {1162049400 39600 1 LHDT}
     {1174748400 37800 0 LHST}
-    {1193499000 39600 1 LHST}
+    {1193499000 39600 1 LHDT}
     {1207407600 37800 0 LHST}
-    {1223134200 39600 1 LHST}
+    {1223134200 39600 1 LHDT}
     {1238857200 37800 0 LHST}
-    {1254583800 39600 1 LHST}
+    {1254583800 39600 1 LHDT}
     {1270306800 37800 0 LHST}
-    {1286033400 39600 1 LHST}
+    {1286033400 39600 1 LHDT}
     {1301756400 37800 0 LHST}
-    {1317483000 39600 1 LHST}
+    {1317483000 39600 1 LHDT}
     {1333206000 37800 0 LHST}
-    {1349537400 39600 1 LHST}
+    {1349537400 39600 1 LHDT}
     {1365260400 37800 0 LHST}
-    {1380987000 39600 1 LHST}
+    {1380987000 39600 1 LHDT}
     {1396710000 37800 0 LHST}
-    {1412436600 39600 1 LHST}
+    {1412436600 39600 1 LHDT}
     {1428159600 37800 0 LHST}
-    {1443886200 39600 1 LHST}
+    {1443886200 39600 1 LHDT}
     {1459609200 37800 0 LHST}
-    {1475335800 39600 1 LHST}
+    {1475335800 39600 1 LHDT}
     {1491058800 37800 0 LHST}
-    {1506785400 39600 1 LHST}
+    {1506785400 39600 1 LHDT}
     {1522508400 37800 0 LHST}
-    {1538839800 39600 1 LHST}
+    {1538839800 39600 1 LHDT}
     {1554562800 37800 0 LHST}
-    {1570289400 39600 1 LHST}
+    {1570289400 39600 1 LHDT}
     {1586012400 37800 0 LHST}
-    {1601739000 39600 1 LHST}
+    {1601739000 39600 1 LHDT}
     {1617462000 37800 0 LHST}
-    {1633188600 39600 1 LHST}
+    {1633188600 39600 1 LHDT}
     {1648911600 37800 0 LHST}
-    {1664638200 39600 1 LHST}
+    {1664638200 39600 1 LHDT}
     {1680361200 37800 0 LHST}
-    {1696087800 39600 1 LHST}
+    {1696087800 39600 1 LHDT}
     {1712415600 37800 0 LHST}
-    {1728142200 39600 1 LHST}
+    {1728142200 39600 1 LHDT}
     {1743865200 37800 0 LHST}
-    {1759591800 39600 1 LHST}
+    {1759591800 39600 1 LHDT}
     {1775314800 37800 0 LHST}
-    {1791041400 39600 1 LHST}
+    {1791041400 39600 1 LHDT}
     {1806764400 37800 0 LHST}
-    {1822491000 39600 1 LHST}
+    {1822491000 39600 1 LHDT}
     {1838214000 37800 0 LHST}
-    {1853940600 39600 1 LHST}
+    {1853940600 39600 1 LHDT}
     {1869663600 37800 0 LHST}
-    {1885995000 39600 1 LHST}
+    {1885995000 39600 1 LHDT}
     {1901718000 37800 0 LHST}
-    {1917444600 39600 1 LHST}
+    {1917444600 39600 1 LHDT}
     {1933167600 37800 0 LHST}
-    {1948894200 39600 1 LHST}
+    {1948894200 39600 1 LHDT}
     {1964617200 37800 0 LHST}
-    {1980343800 39600 1 LHST}
+    {1980343800 39600 1 LHDT}
     {1996066800 37800 0 LHST}
-    {2011793400 39600 1 LHST}
+    {2011793400 39600 1 LHDT}
     {2027516400 37800 0 LHST}
-    {2043243000 39600 1 LHST}
+    {2043243000 39600 1 LHDT}
     {2058966000 37800 0 LHST}
-    {2075297400 39600 1 LHST}
+    {2075297400 39600 1 LHDT}
     {2091020400 37800 0 LHST}
-    {2106747000 39600 1 LHST}
+    {2106747000 39600 1 LHDT}
     {2122470000 37800 0 LHST}
-    {2138196600 39600 1 LHST}
+    {2138196600 39600 1 LHDT}
     {2153919600 37800 0 LHST}
-    {2169646200 39600 1 LHST}
+    {2169646200 39600 1 LHDT}
     {2185369200 37800 0 LHST}
-    {2201095800 39600 1 LHST}
+    {2201095800 39600 1 LHDT}
     {2216818800 37800 0 LHST}
-    {2233150200 39600 1 LHST}
+    {2233150200 39600 1 LHDT}
     {2248873200 37800 0 LHST}
-    {2264599800 39600 1 LHST}
+    {2264599800 39600 1 LHDT}
     {2280322800 37800 0 LHST}
-    {2296049400 39600 1 LHST}
+    {2296049400 39600 1 LHDT}
     {2311772400 37800 0 LHST}
-    {2327499000 39600 1 LHST}
+    {2327499000 39600 1 LHDT}
     {2343222000 37800 0 LHST}
-    {2358948600 39600 1 LHST}
+    {2358948600 39600 1 LHDT}
     {2374671600 37800 0 LHST}
-    {2390398200 39600 1 LHST}
+    {2390398200 39600 1 LHDT}
     {2406121200 37800 0 LHST}
-    {2422452600 39600 1 LHST}
+    {2422452600 39600 1 LHDT}
     {2438175600 37800 0 LHST}
-    {2453902200 39600 1 LHST}
+    {2453902200 39600 1 LHDT}
     {2469625200 37800 0 LHST}
-    {2485351800 39600 1 LHST}
+    {2485351800 39600 1 LHDT}
     {2501074800 37800 0 LHST}
-    {2516801400 39600 1 LHST}
+    {2516801400 39600 1 LHDT}
     {2532524400 37800 0 LHST}
-    {2548251000 39600 1 LHST}
+    {2548251000 39600 1 LHDT}
     {2563974000 37800 0 LHST}
-    {2579700600 39600 1 LHST}
+    {2579700600 39600 1 LHDT}
     {2596028400 37800 0 LHST}
-    {2611755000 39600 1 LHST}
+    {2611755000 39600 1 LHDT}
     {2627478000 37800 0 LHST}
-    {2643204600 39600 1 LHST}
+    {2643204600 39600 1 LHDT}
     {2658927600 37800 0 LHST}
-    {2674654200 39600 1 LHST}
+    {2674654200 39600 1 LHDT}
     {2690377200 37800 0 LHST}
-    {2706103800 39600 1 LHST}
+    {2706103800 39600 1 LHDT}
     {2721826800 37800 0 LHST}
-    {2737553400 39600 1 LHST}
+    {2737553400 39600 1 LHDT}
     {2753276400 37800 0 LHST}
-    {2769607800 39600 1 LHST}
+    {2769607800 39600 1 LHDT}
     {2785330800 37800 0 LHST}
-    {2801057400 39600 1 LHST}
+    {2801057400 39600 1 LHDT}
     {2816780400 37800 0 LHST}
-    {2832507000 39600 1 LHST}
+    {2832507000 39600 1 LHDT}
     {2848230000 37800 0 LHST}
-    {2863956600 39600 1 LHST}
+    {2863956600 39600 1 LHDT}
     {2879679600 37800 0 LHST}
-    {2895406200 39600 1 LHST}
+    {2895406200 39600 1 LHDT}
     {2911129200 37800 0 LHST}
-    {2926855800 39600 1 LHST}
+    {2926855800 39600 1 LHDT}
     {2942578800 37800 0 LHST}
-    {2958910200 39600 1 LHST}
+    {2958910200 39600 1 LHDT}
     {2974633200 37800 0 LHST}
-    {2990359800 39600 1 LHST}
+    {2990359800 39600 1 LHDT}
     {3006082800 37800 0 LHST}
-    {3021809400 39600 1 LHST}
+    {3021809400 39600 1 LHDT}
     {3037532400 37800 0 LHST}
-    {3053259000 39600 1 LHST}
+    {3053259000 39600 1 LHDT}
     {3068982000 37800 0 LHST}
-    {3084708600 39600 1 LHST}
+    {3084708600 39600 1 LHDT}
     {3100431600 37800 0 LHST}
-    {3116763000 39600 1 LHST}
+    {3116763000 39600 1 LHDT}
     {3132486000 37800 0 LHST}
-    {3148212600 39600 1 LHST}
+    {3148212600 39600 1 LHDT}
     {3163935600 37800 0 LHST}
-    {3179662200 39600 1 LHST}
+    {3179662200 39600 1 LHDT}
     {3195385200 37800 0 LHST}
-    {3211111800 39600 1 LHST}
+    {3211111800 39600 1 LHDT}
     {3226834800 37800 0 LHST}
-    {3242561400 39600 1 LHST}
+    {3242561400 39600 1 LHDT}
     {3258284400 37800 0 LHST}
-    {3274011000 39600 1 LHST}
+    {3274011000 39600 1 LHDT}
     {3289734000 37800 0 LHST}
-    {3306065400 39600 1 LHST}
+    {3306065400 39600 1 LHDT}
     {3321788400 37800 0 LHST}
-    {3337515000 39600 1 LHST}
+    {3337515000 39600 1 LHDT}
     {3353238000 37800 0 LHST}
-    {3368964600 39600 1 LHST}
+    {3368964600 39600 1 LHDT}
     {3384687600 37800 0 LHST}
-    {3400414200 39600 1 LHST}
+    {3400414200 39600 1 LHDT}
     {3416137200 37800 0 LHST}
-    {3431863800 39600 1 LHST}
+    {3431863800 39600 1 LHDT}
     {3447586800 37800 0 LHST}
-    {3463313400 39600 1 LHST}
+    {3463313400 39600 1 LHDT}
     {3479641200 37800 0 LHST}
-    {3495367800 39600 1 LHST}
+    {3495367800 39600 1 LHDT}
     {3511090800 37800 0 LHST}
-    {3526817400 39600 1 LHST}
+    {3526817400 39600 1 LHDT}
     {3542540400 37800 0 LHST}
-    {3558267000 39600 1 LHST}
+    {3558267000 39600 1 LHDT}
     {3573990000 37800 0 LHST}
-    {3589716600 39600 1 LHST}
+    {3589716600 39600 1 LHDT}
     {3605439600 37800 0 LHST}
-    {3621166200 39600 1 LHST}
+    {3621166200 39600 1 LHDT}
     {3636889200 37800 0 LHST}
-    {3653220600 39600 1 LHST}
+    {3653220600 39600 1 LHDT}
     {3668943600 37800 0 LHST}
-    {3684670200 39600 1 LHST}
+    {3684670200 39600 1 LHDT}
     {3700393200 37800 0 LHST}
-    {3716119800 39600 1 LHST}
+    {3716119800 39600 1 LHDT}
     {3731842800 37800 0 LHST}
-    {3747569400 39600 1 LHST}
+    {3747569400 39600 1 LHDT}
     {3763292400 37800 0 LHST}
-    {3779019000 39600 1 LHST}
+    {3779019000 39600 1 LHDT}
     {3794742000 37800 0 LHST}
-    {3810468600 39600 1 LHST}
+    {3810468600 39600 1 LHDT}
     {3826191600 37800 0 LHST}
-    {3842523000 39600 1 LHST}
+    {3842523000 39600 1 LHDT}
     {3858246000 37800 0 LHST}
-    {3873972600 39600 1 LHST}
+    {3873972600 39600 1 LHDT}
     {3889695600 37800 0 LHST}
-    {3905422200 39600 1 LHST}
+    {3905422200 39600 1 LHDT}
     {3921145200 37800 0 LHST}
-    {3936871800 39600 1 LHST}
+    {3936871800 39600 1 LHDT}
     {3952594800 37800 0 LHST}
-    {3968321400 39600 1 LHST}
+    {3968321400 39600 1 LHDT}
     {3984044400 37800 0 LHST}
-    {4000375800 39600 1 LHST}
+    {4000375800 39600 1 LHDT}
     {4016098800 37800 0 LHST}
-    {4031825400 39600 1 LHST}
+    {4031825400 39600 1 LHDT}
     {4047548400 37800 0 LHST}
-    {4063275000 39600 1 LHST}
+    {4063275000 39600 1 LHDT}
     {4078998000 37800 0 LHST}
-    {4094724600 39600 1 LHST}
+    {4094724600 39600 1 LHDT}
 }
diff --git a/library/tzdata/Australia/Melbourne b/library/tzdata/Australia/Melbourne
index 907b8b9..81777df 100644
--- a/library/tzdata/Australia/Melbourne
+++ b/library/tzdata/Australia/Melbourne
@@ -2,271 +2,271 @@
 
 set TZData(:Australia/Melbourne) {
     {-9223372036854775808 34792 0 LMT}
-    {-2364111592 36000 0 EST}
-    {-1672567140 39600 1 EST}
-    {-1665392400 36000 0 EST}
-    {-883641600 39600 1 EST}
-    {-876128400 36000 0 EST}
-    {-860400000 39600 1 EST}
-    {-844678800 36000 0 EST}
-    {-828345600 39600 1 EST}
-    {-813229200 36000 0 EST}
-    {31500000 36000 0 EST}
-    {57686400 39600 1 EST}
-    {67968000 36000 0 EST}
-    {89136000 39600 1 EST}
-    {100022400 36000 0 EST}
-    {120585600 39600 1 EST}
-    {131472000 36000 0 EST}
-    {152035200 39600 1 EST}
-    {162921600 36000 0 EST}
-    {183484800 39600 1 EST}
-    {194976000 36000 0 EST}
-    {215539200 39600 1 EST}
-    {226425600 36000 0 EST}
-    {246988800 39600 1 EST}
-    {257875200 36000 0 EST}
-    {278438400 39600 1 EST}
-    {289324800 36000 0 EST}
-    {309888000 39600 1 EST}
-    {320774400 36000 0 EST}
-    {341337600 39600 1 EST}
-    {352224000 36000 0 EST}
-    {372787200 39600 1 EST}
-    {384278400 36000 0 EST}
-    {404841600 39600 1 EST}
-    {415728000 36000 0 EST}
-    {436291200 39600 1 EST}
-    {447177600 36000 0 EST}
-    {467740800 39600 1 EST}
-    {478627200 36000 0 EST}
-    {499190400 39600 1 EST}
-    {511286400 36000 0 EST}
-    {530035200 39600 1 EST}
-    {542736000 36000 0 EST}
-    {561484800 39600 1 EST}
-    {574790400 36000 0 EST}
-    {594144000 39600 1 EST}
-    {606240000 36000 0 EST}
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-    {1080403200 36000 0 EST}
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-    {1111852800 36000 0 EST}
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-    {1193500800 39600 1 EST}
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-    {1759593600 39600 1 EST}
-    {1775318400 36000 0 EST}
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-    {1901721600 36000 0 EST}
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-    {1933171200 36000 0 EST}
-    {1948896000 39600 1 EST}
-    {1964620800 36000 0 EST}
-    {1980345600 39600 1 EST}
-    {1996070400 36000 0 EST}
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-    {2027520000 36000 0 EST}
-    {2043244800 39600 1 EST}
-    {2058969600 36000 0 EST}
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-    {2216822400 36000 0 EST}
-    {2233152000 39600 1 EST}
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-    {2311776000 36000 0 EST}
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-    {2343225600 36000 0 EST}
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-    {2374675200 36000 0 EST}
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-    {2627481600 36000 0 EST}
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-    {2737555200 39600 1 EST}
-    {2753280000 36000 0 EST}
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-    {2801059200 39600 1 EST}
-    {2816784000 36000 0 EST}
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-    {2895408000 39600 1 EST}
-    {2911132800 36000 0 EST}
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-    {2990361600 39600 1 EST}
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-    {3021811200 39600 1 EST}
-    {3037536000 36000 0 EST}
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-    {3195388800 36000 0 EST}
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-    {3384691200 36000 0 EST}
-    {3400416000 39600 1 EST}
-    {3416140800 36000 0 EST}
-    {3431865600 39600 1 EST}
-    {3447590400 36000 0 EST}
-    {3463315200 39600 1 EST}
-    {3479644800 36000 0 EST}
-    {3495369600 39600 1 EST}
-    {3511094400 36000 0 EST}
-    {3526819200 39600 1 EST}
-    {3542544000 36000 0 EST}
-    {3558268800 39600 1 EST}
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-    {3589718400 39600 1 EST}
-    {3605443200 36000 0 EST}
-    {3621168000 39600 1 EST}
-    {3636892800 36000 0 EST}
-    {3653222400 39600 1 EST}
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-    {3684672000 39600 1 EST}
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-    {3731846400 36000 0 EST}
-    {3747571200 39600 1 EST}
-    {3763296000 36000 0 EST}
-    {3779020800 39600 1 EST}
-    {3794745600 36000 0 EST}
-    {3810470400 39600 1 EST}
-    {3826195200 36000 0 EST}
-    {3842524800 39600 1 EST}
-    {3858249600 36000 0 EST}
-    {3873974400 39600 1 EST}
-    {3889699200 36000 0 EST}
-    {3905424000 39600 1 EST}
-    {3921148800 36000 0 EST}
-    {3936873600 39600 1 EST}
-    {3952598400 36000 0 EST}
-    {3968323200 39600 1 EST}
-    {3984048000 36000 0 EST}
-    {4000377600 39600 1 EST}
-    {4016102400 36000 0 EST}
-    {4031827200 39600 1 EST}
-    {4047552000 36000 0 EST}
-    {4063276800 39600 1 EST}
-    {4079001600 36000 0 EST}
-    {4094726400 39600 1 EST}
+    {-2364111592 36000 0 AEST}
+    {-1672567140 39600 1 AEDT}
+    {-1665392400 36000 0 AEST}
+    {-883641600 39600 1 AEDT}
+    {-876128400 36000 0 AEST}
+    {-860400000 39600 1 AEDT}
+    {-844678800 36000 0 AEST}
+    {-828345600 39600 1 AEDT}
+    {-813229200 36000 0 AEST}
+    {31500000 36000 0 AEST}
+    {57686400 39600 1 AEDT}
+    {67968000 36000 0 AEST}
+    {89136000 39600 1 AEDT}
+    {100022400 36000 0 AEST}
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+    {131472000 36000 0 AEST}
+    {152035200 39600 1 AEDT}
+    {162921600 36000 0 AEST}
+    {183484800 39600 1 AEDT}
+    {194976000 36000 0 AEST}
+    {215539200 39600 1 AEDT}
+    {226425600 36000 0 AEST}
+    {246988800 39600 1 AEDT}
+    {257875200 36000 0 AEST}
+    {278438400 39600 1 AEDT}
+    {289324800 36000 0 AEST}
+    {309888000 39600 1 AEDT}
+    {320774400 36000 0 AEST}
+    {341337600 39600 1 AEDT}
+    {352224000 36000 0 AEST}
+    {372787200 39600 1 AEDT}
+    {384278400 36000 0 AEST}
+    {404841600 39600 1 AEDT}
+    {415728000 36000 0 AEST}
+    {436291200 39600 1 AEDT}
+    {447177600 36000 0 AEST}
+    {467740800 39600 1 AEDT}
+    {478627200 36000 0 AEST}
+    {499190400 39600 1 AEDT}
+    {511286400 36000 0 AEST}
+    {530035200 39600 1 AEDT}
+    {542736000 36000 0 AEST}
+    {561484800 39600 1 AEDT}
+    {574790400 36000 0 AEST}
+    {594144000 39600 1 AEDT}
+    {606240000 36000 0 AEST}
+    {625593600 39600 1 AEDT}
+    {637689600 36000 0 AEST}
+    {657043200 39600 1 AEDT}
+    {667929600 36000 0 AEST}
+    {688492800 39600 1 AEDT}
+    {699379200 36000 0 AEST}
+    {719942400 39600 1 AEDT}
+    {731433600 36000 0 AEST}
+    {751996800 39600 1 AEDT}
+    {762883200 36000 0 AEST}
+    {783446400 39600 1 AEDT}
+    {796147200 36000 0 AEST}
+    {814896000 39600 1 AEDT}
+    {828201600 36000 0 AEST}
+    {846345600 39600 1 AEDT}
+    {859651200 36000 0 AEST}
+    {877795200 39600 1 AEDT}
+    {891100800 36000 0 AEST}
+    {909244800 39600 1 AEDT}
+    {922550400 36000 0 AEST}
+    {941299200 39600 1 AEDT}
+    {954000000 36000 0 AEST}
+    {967305600 39600 1 AEDT}
+    {985449600 36000 0 AEST}
+    {1004198400 39600 1 AEDT}
+    {1017504000 36000 0 AEST}
+    {1035648000 39600 1 AEDT}
+    {1048953600 36000 0 AEST}
+    {1067097600 39600 1 AEDT}
+    {1080403200 36000 0 AEST}
+    {1099152000 39600 1 AEDT}
+    {1111852800 36000 0 AEST}
+    {1130601600 39600 1 AEDT}
+    {1143907200 36000 0 AEST}
+    {1162051200 39600 1 AEDT}
+    {1174752000 36000 0 AEST}
+    {1193500800 39600 1 AEDT}
+    {1207411200 36000 0 AEST}
+    {1223136000 39600 1 AEDT}
+    {1238860800 36000 0 AEST}
+    {1254585600 39600 1 AEDT}
+    {1270310400 36000 0 AEST}
+    {1286035200 39600 1 AEDT}
+    {1301760000 36000 0 AEST}
+    {1317484800 39600 1 AEDT}
+    {1333209600 36000 0 AEST}
+    {1349539200 39600 1 AEDT}
+    {1365264000 36000 0 AEST}
+    {1380988800 39600 1 AEDT}
+    {1396713600 36000 0 AEST}
+    {1412438400 39600 1 AEDT}
+    {1428163200 36000 0 AEST}
+    {1443888000 39600 1 AEDT}
+    {1459612800 36000 0 AEST}
+    {1475337600 39600 1 AEDT}
+    {1491062400 36000 0 AEST}
+    {1506787200 39600 1 AEDT}
+    {1522512000 36000 0 AEST}
+    {1538841600 39600 1 AEDT}
+    {1554566400 36000 0 AEST}
+    {1570291200 39600 1 AEDT}
+    {1586016000 36000 0 AEST}
+    {1601740800 39600 1 AEDT}
+    {1617465600 36000 0 AEST}
+    {1633190400 39600 1 AEDT}
+    {1648915200 36000 0 AEST}
+    {1664640000 39600 1 AEDT}
+    {1680364800 36000 0 AEST}
+    {1696089600 39600 1 AEDT}
+    {1712419200 36000 0 AEST}
+    {1728144000 39600 1 AEDT}
+    {1743868800 36000 0 AEST}
+    {1759593600 39600 1 AEDT}
+    {1775318400 36000 0 AEST}
+    {1791043200 39600 1 AEDT}
+    {1806768000 36000 0 AEST}
+    {1822492800 39600 1 AEDT}
+    {1838217600 36000 0 AEST}
+    {1853942400 39600 1 AEDT}
+    {1869667200 36000 0 AEST}
+    {1885996800 39600 1 AEDT}
+    {1901721600 36000 0 AEST}
+    {1917446400 39600 1 AEDT}
+    {1933171200 36000 0 AEST}
+    {1948896000 39600 1 AEDT}
+    {1964620800 36000 0 AEST}
+    {1980345600 39600 1 AEDT}
+    {1996070400 36000 0 AEST}
+    {2011795200 39600 1 AEDT}
+    {2027520000 36000 0 AEST}
+    {2043244800 39600 1 AEDT}
+    {2058969600 36000 0 AEST}
+    {2075299200 39600 1 AEDT}
+    {2091024000 36000 0 AEST}
+    {2106748800 39600 1 AEDT}
+    {2122473600 36000 0 AEST}
+    {2138198400 39600 1 AEDT}
+    {2153923200 36000 0 AEST}
+    {2169648000 39600 1 AEDT}
+    {2185372800 36000 0 AEST}
+    {2201097600 39600 1 AEDT}
+    {2216822400 36000 0 AEST}
+    {2233152000 39600 1 AEDT}
+    {2248876800 36000 0 AEST}
+    {2264601600 39600 1 AEDT}
+    {2280326400 36000 0 AEST}
+    {2296051200 39600 1 AEDT}
+    {2311776000 36000 0 AEST}
+    {2327500800 39600 1 AEDT}
+    {2343225600 36000 0 AEST}
+    {2358950400 39600 1 AEDT}
+    {2374675200 36000 0 AEST}
+    {2390400000 39600 1 AEDT}
+    {2406124800 36000 0 AEST}
+    {2422454400 39600 1 AEDT}
+    {2438179200 36000 0 AEST}
+    {2453904000 39600 1 AEDT}
+    {2469628800 36000 0 AEST}
+    {2485353600 39600 1 AEDT}
+    {2501078400 36000 0 AEST}
+    {2516803200 39600 1 AEDT}
+    {2532528000 36000 0 AEST}
+    {2548252800 39600 1 AEDT}
+    {2563977600 36000 0 AEST}
+    {2579702400 39600 1 AEDT}
+    {2596032000 36000 0 AEST}
+    {2611756800 39600 1 AEDT}
+    {2627481600 36000 0 AEST}
+    {2643206400 39600 1 AEDT}
+    {2658931200 36000 0 AEST}
+    {2674656000 39600 1 AEDT}
+    {2690380800 36000 0 AEST}
+    {2706105600 39600 1 AEDT}
+    {2721830400 36000 0 AEST}
+    {2737555200 39600 1 AEDT}
+    {2753280000 36000 0 AEST}
+    {2769609600 39600 1 AEDT}
+    {2785334400 36000 0 AEST}
+    {2801059200 39600 1 AEDT}
+    {2816784000 36000 0 AEST}
+    {2832508800 39600 1 AEDT}
+    {2848233600 36000 0 AEST}
+    {2863958400 39600 1 AEDT}
+    {2879683200 36000 0 AEST}
+    {2895408000 39600 1 AEDT}
+    {2911132800 36000 0 AEST}
+    {2926857600 39600 1 AEDT}
+    {2942582400 36000 0 AEST}
+    {2958912000 39600 1 AEDT}
+    {2974636800 36000 0 AEST}
+    {2990361600 39600 1 AEDT}
+    {3006086400 36000 0 AEST}
+    {3021811200 39600 1 AEDT}
+    {3037536000 36000 0 AEST}
+    {3053260800 39600 1 AEDT}
+    {3068985600 36000 0 AEST}
+    {3084710400 39600 1 AEDT}
+    {3100435200 36000 0 AEST}
+    {3116764800 39600 1 AEDT}
+    {3132489600 36000 0 AEST}
+    {3148214400 39600 1 AEDT}
+    {3163939200 36000 0 AEST}
+    {3179664000 39600 1 AEDT}
+    {3195388800 36000 0 AEST}
+    {3211113600 39600 1 AEDT}
+    {3226838400 36000 0 AEST}
+    {3242563200 39600 1 AEDT}
+    {3258288000 36000 0 AEST}
+    {3274012800 39600 1 AEDT}
+    {3289737600 36000 0 AEST}
+    {3306067200 39600 1 AEDT}
+    {3321792000 36000 0 AEST}
+    {3337516800 39600 1 AEDT}
+    {3353241600 36000 0 AEST}
+    {3368966400 39600 1 AEDT}
+    {3384691200 36000 0 AEST}
+    {3400416000 39600 1 AEDT}
+    {3416140800 36000 0 AEST}
+    {3431865600 39600 1 AEDT}
+    {3447590400 36000 0 AEST}
+    {3463315200 39600 1 AEDT}
+    {3479644800 36000 0 AEST}
+    {3495369600 39600 1 AEDT}
+    {3511094400 36000 0 AEST}
+    {3526819200 39600 1 AEDT}
+    {3542544000 36000 0 AEST}
+    {3558268800 39600 1 AEDT}
+    {3573993600 36000 0 AEST}
+    {3589718400 39600 1 AEDT}
+    {3605443200 36000 0 AEST}
+    {3621168000 39600 1 AEDT}
+    {3636892800 36000 0 AEST}
+    {3653222400 39600 1 AEDT}
+    {3668947200 36000 0 AEST}
+    {3684672000 39600 1 AEDT}
+    {3700396800 36000 0 AEST}
+    {3716121600 39600 1 AEDT}
+    {3731846400 36000 0 AEST}
+    {3747571200 39600 1 AEDT}
+    {3763296000 36000 0 AEST}
+    {3779020800 39600 1 AEDT}
+    {3794745600 36000 0 AEST}
+    {3810470400 39600 1 AEDT}
+    {3826195200 36000 0 AEST}
+    {3842524800 39600 1 AEDT}
+    {3858249600 36000 0 AEST}
+    {3873974400 39600 1 AEDT}
+    {3889699200 36000 0 AEST}
+    {3905424000 39600 1 AEDT}
+    {3921148800 36000 0 AEST}
+    {3936873600 39600 1 AEDT}
+    {3952598400 36000 0 AEST}
+    {3968323200 39600 1 AEDT}
+    {3984048000 36000 0 AEST}
+    {4000377600 39600 1 AEDT}
+    {4016102400 36000 0 AEST}
+    {4031827200 39600 1 AEDT}
+    {4047552000 36000 0 AEST}
+    {4063276800 39600 1 AEDT}
+    {4079001600 36000 0 AEST}
+    {4094726400 39600 1 AEDT}
 }
diff --git a/library/tzdata/Australia/Perth b/library/tzdata/Australia/Perth
index 5d8f116..6ccbca8 100644
--- a/library/tzdata/Australia/Perth
+++ b/library/tzdata/Australia/Perth
@@ -2,24 +2,24 @@
 
 set TZData(:Australia/Perth) {
     {-9223372036854775808 27804 0 LMT}
-    {-2337925404 28800 0 WST}
-    {-1672559940 32400 1 WST}
-    {-1665385200 28800 0 WST}
-    {-883634400 32400 1 WST}
-    {-876121200 28800 0 WST}
-    {-860392800 32400 1 WST}
-    {-844671600 28800 0 WST}
-    {-836470800 32400 0 WST}
-    {152042400 32400 1 WST}
-    {162928800 28800 0 WST}
-    {436298400 32400 1 WST}
-    {447184800 28800 0 WST}
-    {690314400 32400 1 WST}
-    {699386400 28800 0 WST}
-    {1165082400 32400 1 WST}
-    {1174759200 28800 0 WST}
-    {1193508000 32400 1 WST}
-    {1206813600 28800 0 WST}
-    {1224957600 32400 1 WST}
-    {1238263200 28800 0 WST}
+    {-2337925404 28800 0 AWST}
+    {-1672559940 32400 1 AWDT}
+    {-1665385200 28800 0 AWST}
+    {-883634400 32400 1 AWDT}
+    {-876121200 28800 0 AWST}
+    {-860392800 32400 1 AWDT}
+    {-844671600 28800 0 AWST}
+    {-836470800 32400 0 AWST}
+    {152042400 32400 1 AWDT}
+    {162928800 28800 0 AWST}
+    {436298400 32400 1 AWDT}
+    {447184800 28800 0 AWST}
+    {690314400 32400 1 AWDT}
+    {699386400 28800 0 AWST}
+    {1165082400 32400 1 AWDT}
+    {1174759200 28800 0 AWST}
+    {1193508000 32400 1 AWDT}
+    {1206813600 28800 0 AWST}
+    {1224957600 32400 1 AWDT}
+    {1238263200 28800 0 AWST}
 }
diff --git a/library/tzdata/Australia/Sydney b/library/tzdata/Australia/Sydney
index 84b1d14..b1c4411 100644
--- a/library/tzdata/Australia/Sydney
+++ b/library/tzdata/Australia/Sydney
@@ -2,271 +2,271 @@
 
 set TZData(:Australia/Sydney) {
     {-9223372036854775808 36292 0 LMT}
-    {-2364113092 36000 0 EST}
-    {-1672567140 39600 1 EST}
-    {-1665392400 36000 0 EST}
-    {-883641600 39600 1 EST}
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+    {-2364113092 36000 0 AEST}
+    {-1672567140 39600 1 AEDT}
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+    {-876128400 36000 0 AEST}
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+    {-813229200 36000 0 AEST}
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+    {386697600 36000 0 AEST}
+    {404841600 39600 1 AEDT}
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+    {436291200 39600 1 AEDT}
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+    {467740800 39600 1 AEDT}
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+    {499190400 39600 1 AEDT}
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+    {530035200 39600 1 AEDT}
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+    {562089600 39600 1 AEDT}
+    {574790400 36000 0 AEST}
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+    {751996800 39600 1 AEDT}
+    {762883200 36000 0 AEST}
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+    {814896000 39600 1 AEDT}
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+    {846345600 39600 1 AEDT}
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+    {922550400 36000 0 AEST}
+    {941299200 39600 1 AEDT}
+    {954000000 36000 0 AEST}
+    {967305600 39600 1 AEDT}
+    {985449600 36000 0 AEST}
+    {1004198400 39600 1 AEDT}
+    {1017504000 36000 0 AEST}
+    {1035648000 39600 1 AEDT}
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+    {1080403200 36000 0 AEST}
+    {1099152000 39600 1 AEDT}
+    {1111852800 36000 0 AEST}
+    {1130601600 39600 1 AEDT}
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+    {1162051200 39600 1 AEDT}
+    {1174752000 36000 0 AEST}
+    {1193500800 39600 1 AEDT}
+    {1207411200 36000 0 AEST}
+    {1223136000 39600 1 AEDT}
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+    {1254585600 39600 1 AEDT}
+    {1270310400 36000 0 AEST}
+    {1286035200 39600 1 AEDT}
+    {1301760000 36000 0 AEST}
+    {1317484800 39600 1 AEDT}
+    {1333209600 36000 0 AEST}
+    {1349539200 39600 1 AEDT}
+    {1365264000 36000 0 AEST}
+    {1380988800 39600 1 AEDT}
+    {1396713600 36000 0 AEST}
+    {1412438400 39600 1 AEDT}
+    {1428163200 36000 0 AEST}
+    {1443888000 39600 1 AEDT}
+    {1459612800 36000 0 AEST}
+    {1475337600 39600 1 AEDT}
+    {1491062400 36000 0 AEST}
+    {1506787200 39600 1 AEDT}
+    {1522512000 36000 0 AEST}
+    {1538841600 39600 1 AEDT}
+    {1554566400 36000 0 AEST}
+    {1570291200 39600 1 AEDT}
+    {1586016000 36000 0 AEST}
+    {1601740800 39600 1 AEDT}
+    {1617465600 36000 0 AEST}
+    {1633190400 39600 1 AEDT}
+    {1648915200 36000 0 AEST}
+    {1664640000 39600 1 AEDT}
+    {1680364800 36000 0 AEST}
+    {1696089600 39600 1 AEDT}
+    {1712419200 36000 0 AEST}
+    {1728144000 39600 1 AEDT}
+    {1743868800 36000 0 AEST}
+    {1759593600 39600 1 AEDT}
+    {1775318400 36000 0 AEST}
+    {1791043200 39600 1 AEDT}
+    {1806768000 36000 0 AEST}
+    {1822492800 39600 1 AEDT}
+    {1838217600 36000 0 AEST}
+    {1853942400 39600 1 AEDT}
+    {1869667200 36000 0 AEST}
+    {1885996800 39600 1 AEDT}
+    {1901721600 36000 0 AEST}
+    {1917446400 39600 1 AEDT}
+    {1933171200 36000 0 AEST}
+    {1948896000 39600 1 AEDT}
+    {1964620800 36000 0 AEST}
+    {1980345600 39600 1 AEDT}
+    {1996070400 36000 0 AEST}
+    {2011795200 39600 1 AEDT}
+    {2027520000 36000 0 AEST}
+    {2043244800 39600 1 AEDT}
+    {2058969600 36000 0 AEST}
+    {2075299200 39600 1 AEDT}
+    {2091024000 36000 0 AEST}
+    {2106748800 39600 1 AEDT}
+    {2122473600 36000 0 AEST}
+    {2138198400 39600 1 AEDT}
+    {2153923200 36000 0 AEST}
+    {2169648000 39600 1 AEDT}
+    {2185372800 36000 0 AEST}
+    {2201097600 39600 1 AEDT}
+    {2216822400 36000 0 AEST}
+    {2233152000 39600 1 AEDT}
+    {2248876800 36000 0 AEST}
+    {2264601600 39600 1 AEDT}
+    {2280326400 36000 0 AEST}
+    {2296051200 39600 1 AEDT}
+    {2311776000 36000 0 AEST}
+    {2327500800 39600 1 AEDT}
+    {2343225600 36000 0 AEST}
+    {2358950400 39600 1 AEDT}
+    {2374675200 36000 0 AEST}
+    {2390400000 39600 1 AEDT}
+    {2406124800 36000 0 AEST}
+    {2422454400 39600 1 AEDT}
+    {2438179200 36000 0 AEST}
+    {2453904000 39600 1 AEDT}
+    {2469628800 36000 0 AEST}
+    {2485353600 39600 1 AEDT}
+    {2501078400 36000 0 AEST}
+    {2516803200 39600 1 AEDT}
+    {2532528000 36000 0 AEST}
+    {2548252800 39600 1 AEDT}
+    {2563977600 36000 0 AEST}
+    {2579702400 39600 1 AEDT}
+    {2596032000 36000 0 AEST}
+    {2611756800 39600 1 AEDT}
+    {2627481600 36000 0 AEST}
+    {2643206400 39600 1 AEDT}
+    {2658931200 36000 0 AEST}
+    {2674656000 39600 1 AEDT}
+    {2690380800 36000 0 AEST}
+    {2706105600 39600 1 AEDT}
+    {2721830400 36000 0 AEST}
+    {2737555200 39600 1 AEDT}
+    {2753280000 36000 0 AEST}
+    {2769609600 39600 1 AEDT}
+    {2785334400 36000 0 AEST}
+    {2801059200 39600 1 AEDT}
+    {2816784000 36000 0 AEST}
+    {2832508800 39600 1 AEDT}
+    {2848233600 36000 0 AEST}
+    {2863958400 39600 1 AEDT}
+    {2879683200 36000 0 AEST}
+    {2895408000 39600 1 AEDT}
+    {2911132800 36000 0 AEST}
+    {2926857600 39600 1 AEDT}
+    {2942582400 36000 0 AEST}
+    {2958912000 39600 1 AEDT}
+    {2974636800 36000 0 AEST}
+    {2990361600 39600 1 AEDT}
+    {3006086400 36000 0 AEST}
+    {3021811200 39600 1 AEDT}
+    {3037536000 36000 0 AEST}
+    {3053260800 39600 1 AEDT}
+    {3068985600 36000 0 AEST}
+    {3084710400 39600 1 AEDT}
+    {3100435200 36000 0 AEST}
+    {3116764800 39600 1 AEDT}
+    {3132489600 36000 0 AEST}
+    {3148214400 39600 1 AEDT}
+    {3163939200 36000 0 AEST}
+    {3179664000 39600 1 AEDT}
+    {3195388800 36000 0 AEST}
+    {3211113600 39600 1 AEDT}
+    {3226838400 36000 0 AEST}
+    {3242563200 39600 1 AEDT}
+    {3258288000 36000 0 AEST}
+    {3274012800 39600 1 AEDT}
+    {3289737600 36000 0 AEST}
+    {3306067200 39600 1 AEDT}
+    {3321792000 36000 0 AEST}
+    {3337516800 39600 1 AEDT}
+    {3353241600 36000 0 AEST}
+    {3368966400 39600 1 AEDT}
+    {3384691200 36000 0 AEST}
+    {3400416000 39600 1 AEDT}
+    {3416140800 36000 0 AEST}
+    {3431865600 39600 1 AEDT}
+    {3447590400 36000 0 AEST}
+    {3463315200 39600 1 AEDT}
+    {3479644800 36000 0 AEST}
+    {3495369600 39600 1 AEDT}
+    {3511094400 36000 0 AEST}
+    {3526819200 39600 1 AEDT}
+    {3542544000 36000 0 AEST}
+    {3558268800 39600 1 AEDT}
+    {3573993600 36000 0 AEST}
+    {3589718400 39600 1 AEDT}
+    {3605443200 36000 0 AEST}
+    {3621168000 39600 1 AEDT}
+    {3636892800 36000 0 AEST}
+    {3653222400 39600 1 AEDT}
+    {3668947200 36000 0 AEST}
+    {3684672000 39600 1 AEDT}
+    {3700396800 36000 0 AEST}
+    {3716121600 39600 1 AEDT}
+    {3731846400 36000 0 AEST}
+    {3747571200 39600 1 AEDT}
+    {3763296000 36000 0 AEST}
+    {3779020800 39600 1 AEDT}
+    {3794745600 36000 0 AEST}
+    {3810470400 39600 1 AEDT}
+    {3826195200 36000 0 AEST}
+    {3842524800 39600 1 AEDT}
+    {3858249600 36000 0 AEST}
+    {3873974400 39600 1 AEDT}
+    {3889699200 36000 0 AEST}
+    {3905424000 39600 1 AEDT}
+    {3921148800 36000 0 AEST}
+    {3936873600 39600 1 AEDT}
+    {3952598400 36000 0 AEST}
+    {3968323200 39600 1 AEDT}
+    {3984048000 36000 0 AEST}
+    {4000377600 39600 1 AEDT}
+    {4016102400 36000 0 AEST}
+    {4031827200 39600 1 AEDT}
+    {4047552000 36000 0 AEST}
+    {4063276800 39600 1 AEDT}
+    {4079001600 36000 0 AEST}
+    {4094726400 39600 1 AEDT}
 }
diff --git a/library/tzdata/Europe/Budapest b/library/tzdata/Europe/Budapest
index fd41acc..e660ad1 100644
--- a/library/tzdata/Europe/Budapest
+++ b/library/tzdata/Europe/Budapest
@@ -9,12 +9,10 @@ set TZData(:Europe/Budapest) {
     {-1650150000 3600 0 CET}
     {-1640998800 3600 0 CET}
     {-1633212000 7200 1 CEST}
-    {-1617577200 3600 0 CET}
+    {-1618700400 3600 0 CET}
     {-1600466400 7200 1 CEST}
-    {-1587250800 3600 0 CET}
-    {-1569708000 7200 1 CEST}
-    {-1554332400 3600 0 CET}
-    {-906937200 3600 0 CET}
+    {-1581202800 3600 0 CET}
+    {-906771600 3600 0 CET}
     {-857257200 3600 0 CET}
     {-844556400 7200 1 CEST}
     {-828226800 3600 0 CET}
@@ -22,7 +20,7 @@ set TZData(:Europe/Budapest) {
     {-796777200 3600 0 CET}
     {-788922000 3600 0 CET}
     {-778471200 7200 1 CEST}
-    {-762487200 3600 0 CET}
+    {-762660000 3600 0 CET}
     {-749689200 7200 1 CEST}
     {-733359600 3600 0 CET}
     {-717634800 7200 1 CEST}
diff --git a/library/tzdata/Europe/Busingen b/library/tzdata/Europe/Busingen
new file mode 100644
index 0000000..62abc29
--- /dev/null
+++ b/library/tzdata/Europe/Busingen
@@ -0,0 +1,5 @@
+# created by tools/tclZIC.tcl - do not edit
+if {![info exists TZData(Europe/Zurich)]} {
+    LoadTimeZoneFile Europe/Zurich
+}
+set TZData(:Europe/Busingen) $TZData(:Europe/Zurich)
diff --git a/library/tzdata/Europe/Helsinki b/library/tzdata/Europe/Helsinki
index 3abf790..39c5e78 100644
--- a/library/tzdata/Europe/Helsinki
+++ b/library/tzdata/Europe/Helsinki
@@ -1,11 +1,11 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Europe/Helsinki) {
-    {-9223372036854775808 5992 0 LMT}
-    {-2890258792 5992 0 HMT}
-    {-1535938792 7200 0 EET}
+    {-9223372036854775808 5989 0 LMT}
+    {-2890258789 5989 0 HMT}
+    {-1535938789 7200 0 EET}
     {-875671200 10800 1 EEST}
-    {-859863600 7200 0 EET}
+    {-859773600 7200 0 EET}
     {354672000 10800 1 EEST}
     {370396800 7200 0 EET}
     {386121600 10800 1 EEST}
diff --git a/library/tzdata/Europe/Istanbul b/library/tzdata/Europe/Istanbul
index 7737d75..7cb4820 100644
--- a/library/tzdata/Europe/Istanbul
+++ b/library/tzdata/Europe/Istanbul
@@ -129,7 +129,8 @@ set TZData(:Europe/Istanbul) {
     {1351386000 7200 0 EET}
     {1364691600 10800 1 EEST}
     {1382835600 7200 0 EET}
-    {1396141200 10800 1 EEST}
+    {1396141200 7200 0 EET}
+    {1396227600 10800 0 EEST}
     {1414285200 7200 0 EET}
     {1427590800 10800 1 EEST}
     {1445734800 7200 0 EET}
diff --git a/library/tzdata/Europe/Kaliningrad b/library/tzdata/Europe/Kaliningrad
index d5be459..d03f7d0 100644
--- a/library/tzdata/Europe/Kaliningrad
+++ b/library/tzdata/Europe/Kaliningrad
@@ -81,4 +81,5 @@ set TZData(:Europe/Kaliningrad) {
     {1269734400 10800 1 EEST}
     {1288483200 7200 0 EET}
     {1301184000 10800 0 FET}
+    {1414278000 7200 0 EET}
 }
diff --git a/library/tzdata/Europe/Kiev b/library/tzdata/Europe/Kiev
index 0206be7..55015fa 100644
--- a/library/tzdata/Europe/Kiev
+++ b/library/tzdata/Europe/Kiev
@@ -28,9 +28,9 @@ set TZData(:Europe/Kiev) {
     {591145200 10800 0 MSK}
     {606870000 14400 1 MSD}
     {622594800 10800 0 MSK}
-    {631141200 10800 0 MSK}
-    {646786800 7200 0 EET}
-    {694216800 7200 0 EET}
+    {638319600 14400 1 MSD}
+    {646786800 10800 1 EEST}
+    {686102400 7200 0 EET}
     {701820000 10800 1 EEST}
     {717541200 7200 0 EET}
     {733269600 10800 1 EEST}
diff --git a/library/tzdata/Europe/Lisbon b/library/tzdata/Europe/Lisbon
index 79c688a..7168f96 100644
--- a/library/tzdata/Europe/Lisbon
+++ b/library/tzdata/Europe/Lisbon
@@ -1,9 +1,9 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Europe/Lisbon) {
-    {-9223372036854775808 -2192 0 LMT}
-    {-2713908208 -2192 0 LMT}
-    {-1830381808 0 0 WET}
+    {-9223372036854775808 -2205 0 LMT}
+    {-2713908195 -2205 0 LMT}
+    {-1830381795 0 0 WET}
     {-1689555600 3600 1 WEST}
     {-1677801600 0 0 WET}
     {-1667437200 3600 1 WEST}
diff --git a/library/tzdata/Europe/Minsk b/library/tzdata/Europe/Minsk
index 1adcff8..0acb4aa 100644
--- a/library/tzdata/Europe/Minsk
+++ b/library/tzdata/Europe/Minsk
@@ -71,4 +71,5 @@ set TZData(:Europe/Minsk) {
     {1269734400 10800 1 EEST}
     {1288483200 7200 0 EET}
     {1301184000 10800 0 FET}
+    {1414274400 10800 0 MSK}
 }
diff --git a/library/tzdata/Europe/Moscow b/library/tzdata/Europe/Moscow
index 8f40741..686b3d0 100644
--- a/library/tzdata/Europe/Moscow
+++ b/library/tzdata/Europe/Moscow
@@ -1,20 +1,19 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Europe/Moscow) {
-    {-9223372036854775808 9020 0 LMT}
-    {-2840149820 9000 0 MMT}
-    {-1688265000 9048 0 MMT}
-    {-1656819048 12648 1 MST}
-    {-1641353448 9048 0 MMT}
-    {-1627965048 16248 1 MDST}
-    {-1618716648 12648 1 MST}
-    {-1596429048 16248 1 MDST}
-    {-1593822648 14400 0 MSD}
+    {-9223372036854775808 9017 0 LMT}
+    {-2840149817 9017 0 MMT}
+    {-1688265017 9079 0 MMT}
+    {-1656819079 12679 1 MST}
+    {-1641353479 9079 0 MMT}
+    {-1627965079 16279 1 MDST}
+    {-1618716679 12679 1 MST}
+    {-1596429079 16279 1 MDST}
+    {-1593822679 14400 0 MSD}
     {-1589860800 10800 0 MSK}
     {-1542427200 14400 1 MSD}
-    {-1539493200 18000 1 MSD}
+    {-1539493200 18000 1 MSM}
     {-1525323600 14400 1 MSD}
-    {-1522728000 10800 0 MSK}
     {-1491188400 7200 0 EET}
     {-1247536800 10800 0 MSD}
     {354920400 14400 1 MSD}
@@ -80,4 +79,5 @@ set TZData(:Europe/Moscow) {
     {1269730800 14400 1 MSD}
     {1288479600 10800 0 MSK}
     {1301180400 14400 0 MSK}
+    {1414274400 10800 0 MSK}
 }
diff --git a/library/tzdata/Europe/Riga b/library/tzdata/Europe/Riga
index 9fad0f8..c829ffb 100644
--- a/library/tzdata/Europe/Riga
+++ b/library/tzdata/Europe/Riga
@@ -1,13 +1,13 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Europe/Riga) {
-    {-9223372036854775808 5784 0 LMT}
-    {-2840146584 5784 0 RMT}
-    {-1632008184 9384 1 LST}
-    {-1618702584 5784 0 RMT}
-    {-1601681784 9384 1 LST}
-    {-1597275384 5784 0 RMT}
-    {-1377308184 7200 0 EET}
+    {-9223372036854775808 5794 0 LMT}
+    {-2840146594 5794 0 RMT}
+    {-1632008194 9394 1 LST}
+    {-1618702594 5794 0 RMT}
+    {-1601681794 9394 1 LST}
+    {-1597275394 5794 0 RMT}
+    {-1377308194 7200 0 EET}
     {-928029600 10800 0 MSK}
     {-899521200 3600 0 CET}
     {-857257200 3600 0 CET}
diff --git a/library/tzdata/Europe/Samara b/library/tzdata/Europe/Samara
index f2ac911..ee9d989 100644
--- a/library/tzdata/Europe/Samara
+++ b/library/tzdata/Europe/Samara
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Europe/Samara) {
-    {-9223372036854775808 12036 0 LMT}
-    {-1593825636 10800 0 SAMT}
+    {-9223372036854775808 12020 0 LMT}
+    {-1593825620 10800 0 SAMT}
     {-1247540400 14400 0 SAMT}
     {-1102305600 14400 0 KUYMMTT}
     {354916800 18000 1 KUYST}
@@ -21,13 +21,13 @@ set TZData(:Europe/Samara) {
     {559692000 14400 0 KUYT}
     {575416800 18000 1 KUYST}
     {591141600 14400 0 KUYT}
-    {606866400 10800 0 KUYMMTT}
-    {606870000 14400 1 KUYST}
-    {622594800 10800 0 KUYT}
-    {638319600 14400 1 KUYST}
-    {654649200 10800 0 KUYT}
-    {670374000 7200 0 KUYMMTT}
-    {670377600 10800 1 KUYST}
+    {606866400 10800 0 MSD}
+    {606870000 14400 1 MSD}
+    {622594800 10800 0 MSK}
+    {638319600 14400 1 MSD}
+    {654649200 10800 0 MSK}
+    {670374000 7200 0 EEMMTT}
+    {670377600 10800 1 EEST}
     {686102400 10800 0 KUYT}
     {687916800 14400 0 SAMT}
     {701809200 18000 1 SAMST}
diff --git a/library/tzdata/Europe/Simferopol b/library/tzdata/Europe/Simferopol
index 9836560..f6431fa 100644
--- a/library/tzdata/Europe/Simferopol
+++ b/library/tzdata/Europe/Simferopol
@@ -78,176 +78,6 @@ set TZData(:Europe/Simferopol) {
     {1351386000 7200 0 EET}
     {1364691600 10800 1 EEST}
     {1382835600 7200 0 EET}
-    {1396141200 10800 1 EEST}
-    {1414285200 7200 0 EET}
-    {1427590800 10800 1 EEST}
-    {1445734800 7200 0 EET}
-    {1459040400 10800 1 EEST}
-    {1477789200 7200 0 EET}
-    {1490490000 10800 1 EEST}
-    {1509238800 7200 0 EET}
-    {1521939600 10800 1 EEST}
-    {1540688400 7200 0 EET}
-    {1553994000 10800 1 EEST}
-    {1572138000 7200 0 EET}
-    {1585443600 10800 1 EEST}
-    {1603587600 7200 0 EET}
-    {1616893200 10800 1 EEST}
-    {1635642000 7200 0 EET}
-    {1648342800 10800 1 EEST}
-    {1667091600 7200 0 EET}
-    {1679792400 10800 1 EEST}
-    {1698541200 7200 0 EET}
-    {1711846800 10800 1 EEST}
-    {1729990800 7200 0 EET}
-    {1743296400 10800 1 EEST}
-    {1761440400 7200 0 EET}
-    {1774746000 10800 1 EEST}
-    {1792890000 7200 0 EET}
-    {1806195600 10800 1 EEST}
-    {1824944400 7200 0 EET}
-    {1837645200 10800 1 EEST}
-    {1856394000 7200 0 EET}
-    {1869094800 10800 1 EEST}
-    {1887843600 7200 0 EET}
-    {1901149200 10800 1 EEST}
-    {1919293200 7200 0 EET}
-    {1932598800 10800 1 EEST}
-    {1950742800 7200 0 EET}
-    {1964048400 10800 1 EEST}
-    {1982797200 7200 0 EET}
-    {1995498000 10800 1 EEST}
-    {2014246800 7200 0 EET}
-    {2026947600 10800 1 EEST}
-    {2045696400 7200 0 EET}
-    {2058397200 10800 1 EEST}
-    {2077146000 7200 0 EET}
-    {2090451600 10800 1 EEST}
-    {2108595600 7200 0 EET}
-    {2121901200 10800 1 EEST}
-    {2140045200 7200 0 EET}
-    {2153350800 10800 1 EEST}
-    {2172099600 7200 0 EET}
-    {2184800400 10800 1 EEST}
-    {2203549200 7200 0 EET}
-    {2216250000 10800 1 EEST}
-    {2234998800 7200 0 EET}
-    {2248304400 10800 1 EEST}
-    {2266448400 7200 0 EET}
-    {2279754000 10800 1 EEST}
-    {2297898000 7200 0 EET}
-    {2311203600 10800 1 EEST}
-    {2329347600 7200 0 EET}
-    {2342653200 10800 1 EEST}
-    {2361402000 7200 0 EET}
-    {2374102800 10800 1 EEST}
-    {2392851600 7200 0 EET}
-    {2405552400 10800 1 EEST}
-    {2424301200 7200 0 EET}
-    {2437606800 10800 1 EEST}
-    {2455750800 7200 0 EET}
-    {2469056400 10800 1 EEST}
-    {2487200400 7200 0 EET}
-    {2500506000 10800 1 EEST}
-    {2519254800 7200 0 EET}
-    {2531955600 10800 1 EEST}
-    {2550704400 7200 0 EET}
-    {2563405200 10800 1 EEST}
-    {2582154000 7200 0 EET}
-    {2595459600 10800 1 EEST}
-    {2613603600 7200 0 EET}
-    {2626909200 10800 1 EEST}
-    {2645053200 7200 0 EET}
-    {2658358800 10800 1 EEST}
-    {2676502800 7200 0 EET}
-    {2689808400 10800 1 EEST}
-    {2708557200 7200 0 EET}
-    {2721258000 10800 1 EEST}
-    {2740006800 7200 0 EET}
-    {2752707600 10800 1 EEST}
-    {2771456400 7200 0 EET}
-    {2784762000 10800 1 EEST}
-    {2802906000 7200 0 EET}
-    {2816211600 10800 1 EEST}
-    {2834355600 7200 0 EET}
-    {2847661200 10800 1 EEST}
-    {2866410000 7200 0 EET}
-    {2879110800 10800 1 EEST}
-    {2897859600 7200 0 EET}
-    {2910560400 10800 1 EEST}
-    {2929309200 7200 0 EET}
-    {2942010000 10800 1 EEST}
-    {2960758800 7200 0 EET}
-    {2974064400 10800 1 EEST}
-    {2992208400 7200 0 EET}
-    {3005514000 10800 1 EEST}
-    {3023658000 7200 0 EET}
-    {3036963600 10800 1 EEST}
-    {3055712400 7200 0 EET}
-    {3068413200 10800 1 EEST}
-    {3087162000 7200 0 EET}
-    {3099862800 10800 1 EEST}
-    {3118611600 7200 0 EET}
-    {3131917200 10800 1 EEST}
-    {3150061200 7200 0 EET}
-    {3163366800 10800 1 EEST}
-    {3181510800 7200 0 EET}
-    {3194816400 10800 1 EEST}
-    {3212960400 7200 0 EET}
-    {3226266000 10800 1 EEST}
-    {3245014800 7200 0 EET}
-    {3257715600 10800 1 EEST}
-    {3276464400 7200 0 EET}
-    {3289165200 10800 1 EEST}
-    {3307914000 7200 0 EET}
-    {3321219600 10800 1 EEST}
-    {3339363600 7200 0 EET}
-    {3352669200 10800 1 EEST}
-    {3370813200 7200 0 EET}
-    {3384118800 10800 1 EEST}
-    {3402867600 7200 0 EET}
-    {3415568400 10800 1 EEST}
-    {3434317200 7200 0 EET}
-    {3447018000 10800 1 EEST}
-    {3465766800 7200 0 EET}
-    {3479072400 10800 1 EEST}
-    {3497216400 7200 0 EET}
-    {3510522000 10800 1 EEST}
-    {3528666000 7200 0 EET}
-    {3541971600 10800 1 EEST}
-    {3560115600 7200 0 EET}
-    {3573421200 10800 1 EEST}
-    {3592170000 7200 0 EET}
-    {3604870800 10800 1 EEST}
-    {3623619600 7200 0 EET}
-    {3636320400 10800 1 EEST}
-    {3655069200 7200 0 EET}
-    {3668374800 10800 1 EEST}
-    {3686518800 7200 0 EET}
-    {3699824400 10800 1 EEST}
-    {3717968400 7200 0 EET}
-    {3731274000 10800 1 EEST}
-    {3750022800 7200 0 EET}
-    {3762723600 10800 1 EEST}
-    {3781472400 7200 0 EET}
-    {3794173200 10800 1 EEST}
-    {3812922000 7200 0 EET}
-    {3825622800 10800 1 EEST}
-    {3844371600 7200 0 EET}
-    {3857677200 10800 1 EEST}
-    {3875821200 7200 0 EET}
-    {3889126800 10800 1 EEST}
-    {3907270800 7200 0 EET}
-    {3920576400 10800 1 EEST}
-    {3939325200 7200 0 EET}
-    {3952026000 10800 1 EEST}
-    {3970774800 7200 0 EET}
-    {3983475600 10800 1 EEST}
-    {4002224400 7200 0 EET}
-    {4015530000 10800 1 EEST}
-    {4033674000 7200 0 EET}
-    {4046979600 10800 1 EEST}
-    {4065123600 7200 0 EET}
-    {4078429200 10800 1 EEST}
-    {4096573200 7200 0 EET}
+    {1396137600 14400 0 MSK}
+    {1414274400 10800 0 MSK}
 }
diff --git a/library/tzdata/Europe/Vaduz b/library/tzdata/Europe/Vaduz
index 3118331..095e018 100644
--- a/library/tzdata/Europe/Vaduz
+++ b/library/tzdata/Europe/Vaduz
@@ -1,245 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Europe/Vaduz) {
-    {-9223372036854775808 2284 0 LMT}
-    {-2385247084 3600 0 CET}
-    {347151600 3600 0 CET}
-    {354675600 7200 1 CEST}
-    {370400400 3600 0 CET}
-    {386125200 7200 1 CEST}
-    {401850000 3600 0 CET}
-    {417574800 7200 1 CEST}
-    {433299600 3600 0 CET}
-    {449024400 7200 1 CEST}
-    {465354000 3600 0 CET}
-    {481078800 7200 1 CEST}
-    {496803600 3600 0 CET}
-    {512528400 7200 1 CEST}
-    {528253200 3600 0 CET}
-    {543978000 7200 1 CEST}
-    {559702800 3600 0 CET}
-    {575427600 7200 1 CEST}
-    {591152400 3600 0 CET}
-    {606877200 7200 1 CEST}
-    {622602000 3600 0 CET}
-    {638326800 7200 1 CEST}
-    {654656400 3600 0 CET}
-    {670381200 7200 1 CEST}
-    {686106000 3600 0 CET}
-    {701830800 7200 1 CEST}
-    {717555600 3600 0 CET}
-    {733280400 7200 1 CEST}
-    {749005200 3600 0 CET}
-    {764730000 7200 1 CEST}
-    {780454800 3600 0 CET}
-    {796179600 7200 1 CEST}
-    {811904400 3600 0 CET}
-    {828234000 7200 1 CEST}
-    {846378000 3600 0 CET}
-    {859683600 7200 1 CEST}
-    {877827600 3600 0 CET}
-    {891133200 7200 1 CEST}
-    {909277200 3600 0 CET}
-    {922582800 7200 1 CEST}
-    {941331600 3600 0 CET}
-    {954032400 7200 1 CEST}
-    {972781200 3600 0 CET}
-    {985482000 7200 1 CEST}
-    {1004230800 3600 0 CET}
-    {1017536400 7200 1 CEST}
-    {1035680400 3600 0 CET}
-    {1048986000 7200 1 CEST}
-    {1067130000 3600 0 CET}
-    {1080435600 7200 1 CEST}
-    {1099184400 3600 0 CET}
-    {1111885200 7200 1 CEST}
-    {1130634000 3600 0 CET}
-    {1143334800 7200 1 CEST}
-    {1162083600 3600 0 CET}
-    {1174784400 7200 1 CEST}
-    {1193533200 3600 0 CET}
-    {1206838800 7200 1 CEST}
-    {1224982800 3600 0 CET}
-    {1238288400 7200 1 CEST}
-    {1256432400 3600 0 CET}
-    {1269738000 7200 1 CEST}
-    {1288486800 3600 0 CET}
-    {1301187600 7200 1 CEST}
-    {1319936400 3600 0 CET}
-    {1332637200 7200 1 CEST}
-    {1351386000 3600 0 CET}
-    {1364691600 7200 1 CEST}
-    {1382835600 3600 0 CET}
-    {1396141200 7200 1 CEST}
-    {1414285200 3600 0 CET}
-    {1427590800 7200 1 CEST}
-    {1445734800 3600 0 CET}
-    {1459040400 7200 1 CEST}
-    {1477789200 3600 0 CET}
-    {1490490000 7200 1 CEST}
-    {1509238800 3600 0 CET}
-    {1521939600 7200 1 CEST}
-    {1540688400 3600 0 CET}
-    {1553994000 7200 1 CEST}
-    {1572138000 3600 0 CET}
-    {1585443600 7200 1 CEST}
-    {1603587600 3600 0 CET}
-    {1616893200 7200 1 CEST}
-    {1635642000 3600 0 CET}
-    {1648342800 7200 1 CEST}
-    {1667091600 3600 0 CET}
-    {1679792400 7200 1 CEST}
-    {1698541200 3600 0 CET}
-    {1711846800 7200 1 CEST}
-    {1729990800 3600 0 CET}
-    {1743296400 7200 1 CEST}
-    {1761440400 3600 0 CET}
-    {1774746000 7200 1 CEST}
-    {1792890000 3600 0 CET}
-    {1806195600 7200 1 CEST}
-    {1824944400 3600 0 CET}
-    {1837645200 7200 1 CEST}
-    {1856394000 3600 0 CET}
-    {1869094800 7200 1 CEST}
-    {1887843600 3600 0 CET}
-    {1901149200 7200 1 CEST}
-    {1919293200 3600 0 CET}
-    {1932598800 7200 1 CEST}
-    {1950742800 3600 0 CET}
-    {1964048400 7200 1 CEST}
-    {1982797200 3600 0 CET}
-    {1995498000 7200 1 CEST}
-    {2014246800 3600 0 CET}
-    {2026947600 7200 1 CEST}
-    {2045696400 3600 0 CET}
-    {2058397200 7200 1 CEST}
-    {2077146000 3600 0 CET}
-    {2090451600 7200 1 CEST}
-    {2108595600 3600 0 CET}
-    {2121901200 7200 1 CEST}
-    {2140045200 3600 0 CET}
-    {2153350800 7200 1 CEST}
-    {2172099600 3600 0 CET}
-    {2184800400 7200 1 CEST}
-    {2203549200 3600 0 CET}
-    {2216250000 7200 1 CEST}
-    {2234998800 3600 0 CET}
-    {2248304400 7200 1 CEST}
-    {2266448400 3600 0 CET}
-    {2279754000 7200 1 CEST}
-    {2297898000 3600 0 CET}
-    {2311203600 7200 1 CEST}
-    {2329347600 3600 0 CET}
-    {2342653200 7200 1 CEST}
-    {2361402000 3600 0 CET}
-    {2374102800 7200 1 CEST}
-    {2392851600 3600 0 CET}
-    {2405552400 7200 1 CEST}
-    {2424301200 3600 0 CET}
-    {2437606800 7200 1 CEST}
-    {2455750800 3600 0 CET}
-    {2469056400 7200 1 CEST}
-    {2487200400 3600 0 CET}
-    {2500506000 7200 1 CEST}
-    {2519254800 3600 0 CET}
-    {2531955600 7200 1 CEST}
-    {2550704400 3600 0 CET}
-    {2563405200 7200 1 CEST}
-    {2582154000 3600 0 CET}
-    {2595459600 7200 1 CEST}
-    {2613603600 3600 0 CET}
-    {2626909200 7200 1 CEST}
-    {2645053200 3600 0 CET}
-    {2658358800 7200 1 CEST}
-    {2676502800 3600 0 CET}
-    {2689808400 7200 1 CEST}
-    {2708557200 3600 0 CET}
-    {2721258000 7200 1 CEST}
-    {2740006800 3600 0 CET}
-    {2752707600 7200 1 CEST}
-    {2771456400 3600 0 CET}
-    {2784762000 7200 1 CEST}
-    {2802906000 3600 0 CET}
-    {2816211600 7200 1 CEST}
-    {2834355600 3600 0 CET}
-    {2847661200 7200 1 CEST}
-    {2866410000 3600 0 CET}
-    {2879110800 7200 1 CEST}
-    {2897859600 3600 0 CET}
-    {2910560400 7200 1 CEST}
-    {2929309200 3600 0 CET}
-    {2942010000 7200 1 CEST}
-    {2960758800 3600 0 CET}
-    {2974064400 7200 1 CEST}
-    {2992208400 3600 0 CET}
-    {3005514000 7200 1 CEST}
-    {3023658000 3600 0 CET}
-    {3036963600 7200 1 CEST}
-    {3055712400 3600 0 CET}
-    {3068413200 7200 1 CEST}
-    {3087162000 3600 0 CET}
-    {3099862800 7200 1 CEST}
-    {3118611600 3600 0 CET}
-    {3131917200 7200 1 CEST}
-    {3150061200 3600 0 CET}
-    {3163366800 7200 1 CEST}
-    {3181510800 3600 0 CET}
-    {3194816400 7200 1 CEST}
-    {3212960400 3600 0 CET}
-    {3226266000 7200 1 CEST}
-    {3245014800 3600 0 CET}
-    {3257715600 7200 1 CEST}
-    {3276464400 3600 0 CET}
-    {3289165200 7200 1 CEST}
-    {3307914000 3600 0 CET}
-    {3321219600 7200 1 CEST}
-    {3339363600 3600 0 CET}
-    {3352669200 7200 1 CEST}
-    {3370813200 3600 0 CET}
-    {3384118800 7200 1 CEST}
-    {3402867600 3600 0 CET}
-    {3415568400 7200 1 CEST}
-    {3434317200 3600 0 CET}
-    {3447018000 7200 1 CEST}
-    {3465766800 3600 0 CET}
-    {3479072400 7200 1 CEST}
-    {3497216400 3600 0 CET}
-    {3510522000 7200 1 CEST}
-    {3528666000 3600 0 CET}
-    {3541971600 7200 1 CEST}
-    {3560115600 3600 0 CET}
-    {3573421200 7200 1 CEST}
-    {3592170000 3600 0 CET}
-    {3604870800 7200 1 CEST}
-    {3623619600 3600 0 CET}
-    {3636320400 7200 1 CEST}
-    {3655069200 3600 0 CET}
-    {3668374800 7200 1 CEST}
-    {3686518800 3600 0 CET}
-    {3699824400 7200 1 CEST}
-    {3717968400 3600 0 CET}
-    {3731274000 7200 1 CEST}
-    {3750022800 3600 0 CET}
-    {3762723600 7200 1 CEST}
-    {3781472400 3600 0 CET}
-    {3794173200 7200 1 CEST}
-    {3812922000 3600 0 CET}
-    {3825622800 7200 1 CEST}
-    {3844371600 3600 0 CET}
-    {3857677200 7200 1 CEST}
-    {3875821200 3600 0 CET}
-    {3889126800 7200 1 CEST}
-    {3907270800 3600 0 CET}
-    {3920576400 7200 1 CEST}
-    {3939325200 3600 0 CET}
-    {3952026000 7200 1 CEST}
-    {3970774800 3600 0 CET}
-    {3983475600 7200 1 CEST}
-    {4002224400 3600 0 CET}
-    {4015530000 7200 1 CEST}
-    {4033674000 3600 0 CET}
-    {4046979600 7200 1 CEST}
-    {4065123600 3600 0 CET}
-    {4078429200 7200 1 CEST}
-    {4096573200 3600 0 CET}
+if {![info exists TZData(Europe/Zurich)]} {
+    LoadTimeZoneFile Europe/Zurich
 }
+set TZData(:Europe/Vaduz) $TZData(:Europe/Zurich)
diff --git a/library/tzdata/Europe/Vienna b/library/tzdata/Europe/Vienna
index 41d744d..95283eb 100644
--- a/library/tzdata/Europe/Vienna
+++ b/library/tzdata/Europe/Vienna
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Europe/Vienna) {
-    {-9223372036854775808 3920 0 LMT}
-    {-2422055120 3600 0 CET}
+    {-9223372036854775808 3921 0 LMT}
+    {-2422055121 3600 0 CET}
     {-1693706400 7200 1 CEST}
     {-1680483600 3600 0 CET}
     {-1663455600 7200 1 CEST}
diff --git a/library/tzdata/Europe/Volgograd b/library/tzdata/Europe/Volgograd
index c3f148f..d71fb0b 100755
--- a/library/tzdata/Europe/Volgograd
+++ b/library/tzdata/Europe/Volgograd
@@ -28,43 +28,44 @@ set TZData(:Europe/Volgograd) {
     {638319600 14400 1 VOLST}
     {654649200 10800 0 VOLT}
     {670374000 14400 0 VOLT}
-    {701820000 14400 0 VOLST}
-    {717534000 10800 0 VOLT}
-    {733273200 14400 1 VOLST}
-    {748998000 10800 0 VOLT}
-    {764722800 14400 1 VOLST}
-    {780447600 10800 0 VOLT}
-    {796172400 14400 1 VOLST}
-    {811897200 10800 0 VOLT}
-    {828226800 14400 1 VOLST}
-    {846370800 10800 0 VOLT}
-    {859676400 14400 1 VOLST}
-    {877820400 10800 0 VOLT}
-    {891126000 14400 1 VOLST}
-    {909270000 10800 0 VOLT}
-    {922575600 14400 1 VOLST}
-    {941324400 10800 0 VOLT}
-    {954025200 14400 1 VOLST}
-    {972774000 10800 0 VOLT}
-    {985474800 14400 1 VOLST}
-    {1004223600 10800 0 VOLT}
-    {1017529200 14400 1 VOLST}
-    {1035673200 10800 0 VOLT}
-    {1048978800 14400 1 VOLST}
-    {1067122800 10800 0 VOLT}
-    {1080428400 14400 1 VOLST}
-    {1099177200 10800 0 VOLT}
-    {1111878000 14400 1 VOLST}
-    {1130626800 10800 0 VOLT}
-    {1143327600 14400 1 VOLST}
-    {1162076400 10800 0 VOLT}
-    {1174777200 14400 1 VOLST}
-    {1193526000 10800 0 VOLT}
-    {1206831600 14400 1 VOLST}
-    {1224975600 10800 0 VOLT}
-    {1238281200 14400 1 VOLST}
-    {1256425200 10800 0 VOLT}
-    {1269730800 14400 1 VOLST}
-    {1288479600 10800 0 VOLT}
-    {1301180400 14400 0 VOLT}
+    {701820000 14400 0 MSD}
+    {717534000 10800 0 MSK}
+    {733273200 14400 1 MSD}
+    {748998000 10800 0 MSK}
+    {764722800 14400 1 MSD}
+    {780447600 10800 0 MSK}
+    {796172400 14400 1 MSD}
+    {811897200 10800 0 MSK}
+    {828226800 14400 1 MSD}
+    {846370800 10800 0 MSK}
+    {859676400 14400 1 MSD}
+    {877820400 10800 0 MSK}
+    {891126000 14400 1 MSD}
+    {909270000 10800 0 MSK}
+    {922575600 14400 1 MSD}
+    {941324400 10800 0 MSK}
+    {954025200 14400 1 MSD}
+    {972774000 10800 0 MSK}
+    {985474800 14400 1 MSD}
+    {1004223600 10800 0 MSK}
+    {1017529200 14400 1 MSD}
+    {1035673200 10800 0 MSK}
+    {1048978800 14400 1 MSD}
+    {1067122800 10800 0 MSK}
+    {1080428400 14400 1 MSD}
+    {1099177200 10800 0 MSK}
+    {1111878000 14400 1 MSD}
+    {1130626800 10800 0 MSK}
+    {1143327600 14400 1 MSD}
+    {1162076400 10800 0 MSK}
+    {1174777200 14400 1 MSD}
+    {1193526000 10800 0 MSK}
+    {1206831600 14400 1 MSD}
+    {1224975600 10800 0 MSK}
+    {1238281200 14400 1 MSD}
+    {1256425200 10800 0 MSK}
+    {1269730800 14400 1 MSD}
+    {1288479600 10800 0 MSK}
+    {1301180400 14400 0 MSK}
+    {1414274400 10800 0 MSK}
 }
diff --git a/library/tzdata/Europe/Zurich b/library/tzdata/Europe/Zurich
index 33831c3..87a20db 100644
--- a/library/tzdata/Europe/Zurich
+++ b/library/tzdata/Europe/Zurich
@@ -2,8 +2,8 @@
 
 set TZData(:Europe/Zurich) {
     {-9223372036854775808 2048 0 LMT}
-    {-3827954048 1784 0 BMT}
-    {-2385246584 3600 0 CET}
+    {-3675198848 1786 0 BMT}
+    {-2385246586 3600 0 CET}
     {-904435200 7200 1 CEST}
     {-891129600 3600 0 CET}
     {-872985600 7200 1 CEST}
diff --git a/library/tzdata/Indian/Antananarivo b/library/tzdata/Indian/Antananarivo
index 217715e..c56a893 100644
--- a/library/tzdata/Indian/Antananarivo
+++ b/library/tzdata/Indian/Antananarivo
@@ -1,8 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Indian/Antananarivo) {
-    {-9223372036854775808 11404 0 LMT}
-    {-1846293004 10800 0 EAT}
-    {-499924800 14400 1 EAST}
-    {-492062400 10800 0 EAT}
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
+set TZData(:Indian/Antananarivo) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Indian/Comoro b/library/tzdata/Indian/Comoro
index 0b3c33a..06071de 100644
--- a/library/tzdata/Indian/Comoro
+++ b/library/tzdata/Indian/Comoro
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Indian/Comoro) {
-    {-9223372036854775808 10384 0 LMT}
-    {-1846291984 10800 0 EAT}
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
+set TZData(:Indian/Comoro) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Indian/Mayotte b/library/tzdata/Indian/Mayotte
index 0fe5f56..da55521 100644
--- a/library/tzdata/Indian/Mayotte
+++ b/library/tzdata/Indian/Mayotte
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Indian/Mayotte) {
-    {-9223372036854775808 10856 0 LMT}
-    {-1846292456 10800 0 EAT}
+if {![info exists TZData(Africa/Nairobi)]} {
+    LoadTimeZoneFile Africa/Nairobi
 }
+set TZData(:Indian/Mayotte) $TZData(:Africa/Nairobi)
diff --git a/library/tzdata/Pacific/Apia b/library/tzdata/Pacific/Apia
index 2e8e128..21d6669 100644
--- a/library/tzdata/Pacific/Apia
+++ b/library/tzdata/Pacific/Apia
@@ -3,11 +3,186 @@
 set TZData(:Pacific/Apia) {
     {-9223372036854775808 45184 0 LMT}
     {-2855737984 -41216 0 LMT}
-    {-1861878784 -41400 0 SAMT}
-    {-631110600 -39600 0 WST}
-    {1285498800 -36000 1 WSDT}
-    {1301752800 -39600 0 WST}
-    {1316872800 -36000 1 WSDT}
-    {1325239200 50400 1 WSDT}
-    {1333202400 46800 0 WST}
+    {-1861878784 -41400 0 WSST}
+    {-631110600 -39600 0 SST}
+    {1285498800 -36000 1 SDT}
+    {1301752800 -39600 0 SST}
+    {1316872800 -36000 1 SDT}
+    {1325239200 50400 0 WSDT}
+    {1333202400 46800 0 WSST}
+    {1348927200 50400 1 WSDT}
+    {1365256800 46800 0 WSST}
+    {1380376800 50400 1 WSDT}
+    {1396706400 46800 0 WSST}
+    {1411826400 50400 1 WSDT}
+    {1428156000 46800 0 WSST}
+    {1443276000 50400 1 WSDT}
+    {1459605600 46800 0 WSST}
+    {1474725600 50400 1 WSDT}
+    {1491055200 46800 0 WSST}
+    {1506175200 50400 1 WSDT}
+    {1522504800 46800 0 WSST}
+    {1538229600 50400 1 WSDT}
+    {1554559200 46800 0 WSST}
+    {1569679200 50400 1 WSDT}
+    {1586008800 46800 0 WSST}
+    {1601128800 50400 1 WSDT}
+    {1617458400 46800 0 WSST}
+    {1632578400 50400 1 WSDT}
+    {1648908000 46800 0 WSST}
+    {1664028000 50400 1 WSDT}
+    {1680357600 46800 0 WSST}
+    {1695477600 50400 1 WSDT}
+    {1712412000 46800 0 WSST}
+    {1727532000 50400 1 WSDT}
+    {1743861600 46800 0 WSST}
+    {1758981600 50400 1 WSDT}
+    {1775311200 46800 0 WSST}
+    {1790431200 50400 1 WSDT}
+    {1806760800 46800 0 WSST}
+    {1821880800 50400 1 WSDT}
+    {1838210400 46800 0 WSST}
+    {1853330400 50400 1 WSDT}
+    {1869660000 46800 0 WSST}
+    {1885384800 50400 1 WSDT}
+    {1901714400 46800 0 WSST}
+    {1916834400 50400 1 WSDT}
+    {1933164000 46800 0 WSST}
+    {1948284000 50400 1 WSDT}
+    {1964613600 46800 0 WSST}
+    {1979733600 50400 1 WSDT}
+    {1996063200 46800 0 WSST}
+    {2011183200 50400 1 WSDT}
+    {2027512800 46800 0 WSST}
+    {2042632800 50400 1 WSDT}
+    {2058962400 46800 0 WSST}
+    {2074687200 50400 1 WSDT}
+    {2091016800 46800 0 WSST}
+    {2106136800 50400 1 WSDT}
+    {2122466400 46800 0 WSST}
+    {2137586400 50400 1 WSDT}
+    {2153916000 46800 0 WSST}
+    {2169036000 50400 1 WSDT}
+    {2185365600 46800 0 WSST}
+    {2200485600 50400 1 WSDT}
+    {2216815200 46800 0 WSST}
+    {2232540000 50400 1 WSDT}
+    {2248869600 46800 0 WSST}
+    {2263989600 50400 1 WSDT}
+    {2280319200 46800 0 WSST}
+    {2295439200 50400 1 WSDT}
+    {2311768800 46800 0 WSST}
+    {2326888800 50400 1 WSDT}
+    {2343218400 46800 0 WSST}
+    {2358338400 50400 1 WSDT}
+    {2374668000 46800 0 WSST}
+    {2389788000 50400 1 WSDT}
+    {2406117600 46800 0 WSST}
+    {2421842400 50400 1 WSDT}
+    {2438172000 46800 0 WSST}
+    {2453292000 50400 1 WSDT}
+    {2469621600 46800 0 WSST}
+    {2484741600 50400 1 WSDT}
+    {2501071200 46800 0 WSST}
+    {2516191200 50400 1 WSDT}
+    {2532520800 46800 0 WSST}
+    {2547640800 50400 1 WSDT}
+    {2563970400 46800 0 WSST}
+    {2579090400 50400 1 WSDT}
+    {2596024800 46800 0 WSST}
+    {2611144800 50400 1 WSDT}
+    {2627474400 46800 0 WSST}
+    {2642594400 50400 1 WSDT}
+    {2658924000 46800 0 WSST}
+    {2674044000 50400 1 WSDT}
+    {2690373600 46800 0 WSST}
+    {2705493600 50400 1 WSDT}
+    {2721823200 46800 0 WSST}
+    {2736943200 50400 1 WSDT}
+    {2753272800 46800 0 WSST}
+    {2768997600 50400 1 WSDT}
+    {2785327200 46800 0 WSST}
+    {2800447200 50400 1 WSDT}
+    {2816776800 46800 0 WSST}
+    {2831896800 50400 1 WSDT}
+    {2848226400 46800 0 WSST}
+    {2863346400 50400 1 WSDT}
+    {2879676000 46800 0 WSST}
+    {2894796000 50400 1 WSDT}
+    {2911125600 46800 0 WSST}
+    {2926245600 50400 1 WSDT}
+    {2942575200 46800 0 WSST}
+    {2958300000 50400 1 WSDT}
+    {2974629600 46800 0 WSST}
+    {2989749600 50400 1 WSDT}
+    {3006079200 46800 0 WSST}
+    {3021199200 50400 1 WSDT}
+    {3037528800 46800 0 WSST}
+    {3052648800 50400 1 WSDT}
+    {3068978400 46800 0 WSST}
+    {3084098400 50400 1 WSDT}
+    {3100428000 46800 0 WSST}
+    {3116152800 50400 1 WSDT}
+    {3132482400 46800 0 WSST}
+    {3147602400 50400 1 WSDT}
+    {3163932000 46800 0 WSST}
+    {3179052000 50400 1 WSDT}
+    {3195381600 46800 0 WSST}
+    {3210501600 50400 1 WSDT}
+    {3226831200 46800 0 WSST}
+    {3241951200 50400 1 WSDT}
+    {3258280800 46800 0 WSST}
+    {3273400800 50400 1 WSDT}
+    {3289730400 46800 0 WSST}
+    {3305455200 50400 1 WSDT}
+    {3321784800 46800 0 WSST}
+    {3336904800 50400 1 WSDT}
+    {3353234400 46800 0 WSST}
+    {3368354400 50400 1 WSDT}
+    {3384684000 46800 0 WSST}
+    {3399804000 50400 1 WSDT}
+    {3416133600 46800 0 WSST}
+    {3431253600 50400 1 WSDT}
+    {3447583200 46800 0 WSST}
+    {3462703200 50400 1 WSDT}
+    {3479637600 46800 0 WSST}
+    {3494757600 50400 1 WSDT}
+    {3511087200 46800 0 WSST}
+    {3526207200 50400 1 WSDT}
+    {3542536800 46800 0 WSST}
+    {3557656800 50400 1 WSDT}
+    {3573986400 46800 0 WSST}
+    {3589106400 50400 1 WSDT}
+    {3605436000 46800 0 WSST}
+    {3620556000 50400 1 WSDT}
+    {3636885600 46800 0 WSST}
+    {3652610400 50400 1 WSDT}
+    {3668940000 46800 0 WSST}
+    {3684060000 50400 1 WSDT}
+    {3700389600 46800 0 WSST}
+    {3715509600 50400 1 WSDT}
+    {3731839200 46800 0 WSST}
+    {3746959200 50400 1 WSDT}
+    {3763288800 46800 0 WSST}
+    {3778408800 50400 1 WSDT}
+    {3794738400 46800 0 WSST}
+    {3809858400 50400 1 WSDT}
+    {3826188000 46800 0 WSST}
+    {3841912800 50400 1 WSDT}
+    {3858242400 46800 0 WSST}
+    {3873362400 50400 1 WSDT}
+    {3889692000 46800 0 WSST}
+    {3904812000 50400 1 WSDT}
+    {3921141600 46800 0 WSST}
+    {3936261600 50400 1 WSDT}
+    {3952591200 46800 0 WSST}
+    {3967711200 50400 1 WSDT}
+    {3984040800 46800 0 WSST}
+    {3999765600 50400 1 WSDT}
+    {4016095200 46800 0 WSST}
+    {4031215200 50400 1 WSDT}
+    {4047544800 46800 0 WSST}
+    {4062664800 50400 1 WSDT}
+    {4078994400 46800 0 WSST}
+    {4094114400 50400 1 WSDT}
 }
diff --git a/library/tzdata/Pacific/Bougainville b/library/tzdata/Pacific/Bougainville
new file mode 100644
index 0000000..06996f9
--- /dev/null
+++ b/library/tzdata/Pacific/Bougainville
@@ -0,0 +1,10 @@
+# created by tools/tclZIC.tcl - do not edit
+
+set TZData(:Pacific/Bougainville) {
+    {-9223372036854775808 37336 0 LMT}
+    {-2840178136 35312 0 PMMT}
+    {-2366790512 36000 0 PGT}
+    {-868010400 32400 0 JST}
+    {-768906000 36000 0 PGT}
+    {1419696000 39600 0 BST}
+}
diff --git a/library/tzdata/Pacific/Chatham b/library/tzdata/Pacific/Chatham
index 0ed2260..94a5512 100644
--- a/library/tzdata/Pacific/Chatham
+++ b/library/tzdata/Pacific/Chatham
@@ -2,7 +2,8 @@
 
 set TZData(:Pacific/Chatham) {
     {-9223372036854775808 44028 0 LMT}
-    {-410271228 45900 0 CHAST}
+    {-3192437628 44100 0 CHAST}
+    {-757426500 45900 0 CHAST}
     {152632800 49500 1 CHADT}
     {162309600 45900 0 CHAST}
     {183477600 49500 1 CHADT}
diff --git a/library/tzdata/Pacific/Easter b/library/tzdata/Pacific/Easter
index 38795fb..4b45ba2 100644
--- a/library/tzdata/Pacific/Easter
+++ b/library/tzdata/Pacific/Easter
@@ -1,14 +1,9 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Pacific/Easter) {
-    {-9223372036854775808 -26264 0 LMT}
-    {-2524495336 -26248 0 EMT}
-    {-1178124152 -21600 0 EASST}
-    {-870552000 -25200 0 EAST}
-    {-865278000 -21600 1 EASST}
-    {-740520000 -21600 1 EASST}
-    {-736376400 -25200 0 EAST}
-    {-718056000 -25200 0 EAST}
+    {-9223372036854775808 -26248 0 LMT}
+    {-2524495352 -26248 0 EMT}
+    {-1178124152 -25200 0 EAST}
     {-36619200 -21600 1 EASST}
     {-23922000 -25200 0 EAST}
     {-3355200 -21600 1 EASST}
@@ -49,10 +44,10 @@ set TZData(:Pacific/Easter) {
     {545194800 -21600 0 EAST}
     {560923200 -18000 1 EASST}
     {574225200 -21600 0 EAST}
-    {591768000 -18000 1 EASST}
+    {592372800 -18000 1 EASST}
     {605674800 -21600 0 EAST}
     {624427200 -18000 1 EASST}
-    {637729200 -21600 0 EAST}
+    {637124400 -21600 0 EAST}
     {653457600 -18000 1 EASST}
     {668574000 -21600 0 EAST}
     {687326400 -18000 1 EASST}
@@ -98,178 +93,9 @@ set TZData(:Pacific/Easter) {
     {1313899200 -18000 1 EASST}
     {1335668400 -21600 0 EAST}
     {1346558400 -18000 1 EASST}
-    {1362884400 -21600 0 EAST}
-    {1381636800 -18000 1 EASST}
-    {1394334000 -21600 0 EAST}
-    {1413086400 -18000 1 EASST}
-    {1426388400 -21600 0 EAST}
-    {1444536000 -18000 1 EASST}
-    {1457838000 -21600 0 EAST}
-    {1475985600 -18000 1 EASST}
-    {1489287600 -21600 0 EAST}
-    {1508040000 -18000 1 EASST}
-    {1520737200 -21600 0 EAST}
-    {1539489600 -18000 1 EASST}
-    {1552186800 -21600 0 EAST}
-    {1570939200 -18000 1 EASST}
-    {1584241200 -21600 0 EAST}
-    {1602388800 -18000 1 EASST}
-    {1615690800 -21600 0 EAST}
-    {1633838400 -18000 1 EASST}
-    {1647140400 -21600 0 EAST}
-    {1665288000 -18000 1 EASST}
-    {1678590000 -21600 0 EAST}
-    {1697342400 -18000 1 EASST}
-    {1710039600 -21600 0 EAST}
-    {1728792000 -18000 1 EASST}
-    {1741489200 -21600 0 EAST}
-    {1760241600 -18000 1 EASST}
-    {1773543600 -21600 0 EAST}
-    {1791691200 -18000 1 EASST}
-    {1804993200 -21600 0 EAST}
-    {1823140800 -18000 1 EASST}
-    {1836442800 -21600 0 EAST}
-    {1855195200 -18000 1 EASST}
-    {1867892400 -21600 0 EAST}
-    {1886644800 -18000 1 EASST}
-    {1899342000 -21600 0 EAST}
-    {1918094400 -18000 1 EASST}
-    {1930791600 -21600 0 EAST}
-    {1949544000 -18000 1 EASST}
-    {1962846000 -21600 0 EAST}
-    {1980993600 -18000 1 EASST}
-    {1994295600 -21600 0 EAST}
-    {2012443200 -18000 1 EASST}
-    {2025745200 -21600 0 EAST}
-    {2044497600 -18000 1 EASST}
-    {2057194800 -21600 0 EAST}
-    {2075947200 -18000 1 EASST}
-    {2088644400 -21600 0 EAST}
-    {2107396800 -18000 1 EASST}
-    {2120698800 -21600 0 EAST}
-    {2138846400 -18000 1 EASST}
-    {2152148400 -21600 0 EAST}
-    {2170296000 -18000 1 EASST}
-    {2183598000 -21600 0 EAST}
-    {2201745600 -18000 1 EASST}
-    {2215047600 -21600 0 EAST}
-    {2233800000 -18000 1 EASST}
-    {2246497200 -21600 0 EAST}
-    {2265249600 -18000 1 EASST}
-    {2277946800 -21600 0 EAST}
-    {2296699200 -18000 1 EASST}
-    {2310001200 -21600 0 EAST}
-    {2328148800 -18000 1 EASST}
-    {2341450800 -21600 0 EAST}
-    {2359598400 -18000 1 EASST}
-    {2372900400 -21600 0 EAST}
-    {2391652800 -18000 1 EASST}
-    {2404350000 -21600 0 EAST}
-    {2423102400 -18000 1 EASST}
-    {2435799600 -21600 0 EAST}
-    {2454552000 -18000 1 EASST}
-    {2467854000 -21600 0 EAST}
-    {2486001600 -18000 1 EASST}
-    {2499303600 -21600 0 EAST}
-    {2517451200 -18000 1 EASST}
-    {2530753200 -21600 0 EAST}
-    {2548900800 -18000 1 EASST}
-    {2562202800 -21600 0 EAST}
-    {2580955200 -18000 1 EASST}
-    {2593652400 -21600 0 EAST}
-    {2612404800 -18000 1 EASST}
-    {2625102000 -21600 0 EAST}
-    {2643854400 -18000 1 EASST}
-    {2657156400 -21600 0 EAST}
-    {2675304000 -18000 1 EASST}
-    {2688606000 -21600 0 EAST}
-    {2706753600 -18000 1 EASST}
-    {2720055600 -21600 0 EAST}
-    {2738808000 -18000 1 EASST}
-    {2751505200 -21600 0 EAST}
-    {2770257600 -18000 1 EASST}
-    {2782954800 -21600 0 EAST}
-    {2801707200 -18000 1 EASST}
-    {2814404400 -21600 0 EAST}
-    {2833156800 -18000 1 EASST}
-    {2846458800 -21600 0 EAST}
-    {2864606400 -18000 1 EASST}
-    {2877908400 -21600 0 EAST}
-    {2896056000 -18000 1 EASST}
-    {2909358000 -21600 0 EAST}
-    {2928110400 -18000 1 EASST}
-    {2940807600 -21600 0 EAST}
-    {2959560000 -18000 1 EASST}
-    {2972257200 -21600 0 EAST}
-    {2991009600 -18000 1 EASST}
-    {3004311600 -21600 0 EAST}
-    {3022459200 -18000 1 EASST}
-    {3035761200 -21600 0 EAST}
-    {3053908800 -18000 1 EASST}
-    {3067210800 -21600 0 EAST}
-    {3085358400 -18000 1 EASST}
-    {3098660400 -21600 0 EAST}
-    {3117412800 -18000 1 EASST}
-    {3130110000 -21600 0 EAST}
-    {3148862400 -18000 1 EASST}
-    {3161559600 -21600 0 EAST}
-    {3180312000 -18000 1 EASST}
-    {3193614000 -21600 0 EAST}
-    {3211761600 -18000 1 EASST}
-    {3225063600 -21600 0 EAST}
-    {3243211200 -18000 1 EASST}
-    {3256513200 -21600 0 EAST}
-    {3275265600 -18000 1 EASST}
-    {3287962800 -21600 0 EAST}
-    {3306715200 -18000 1 EASST}
-    {3319412400 -21600 0 EAST}
-    {3338164800 -18000 1 EASST}
-    {3351466800 -21600 0 EAST}
-    {3369614400 -18000 1 EASST}
-    {3382916400 -21600 0 EAST}
-    {3401064000 -18000 1 EASST}
-    {3414366000 -21600 0 EAST}
-    {3432513600 -18000 1 EASST}
-    {3445815600 -21600 0 EAST}
-    {3464568000 -18000 1 EASST}
-    {3477265200 -21600 0 EAST}
-    {3496017600 -18000 1 EASST}
-    {3508714800 -21600 0 EAST}
-    {3527467200 -18000 1 EASST}
-    {3540769200 -21600 0 EAST}
-    {3558916800 -18000 1 EASST}
-    {3572218800 -21600 0 EAST}
-    {3590366400 -18000 1 EASST}
-    {3603668400 -21600 0 EAST}
-    {3622420800 -18000 1 EASST}
-    {3635118000 -21600 0 EAST}
-    {3653870400 -18000 1 EASST}
-    {3666567600 -21600 0 EAST}
-    {3685320000 -18000 1 EASST}
-    {3698017200 -21600 0 EAST}
-    {3716769600 -18000 1 EASST}
-    {3730071600 -21600 0 EAST}
-    {3748219200 -18000 1 EASST}
-    {3761521200 -21600 0 EAST}
-    {3779668800 -18000 1 EASST}
-    {3792970800 -21600 0 EAST}
-    {3811723200 -18000 1 EASST}
-    {3824420400 -21600 0 EAST}
-    {3843172800 -18000 1 EASST}
-    {3855870000 -21600 0 EAST}
-    {3874622400 -18000 1 EASST}
-    {3887924400 -21600 0 EAST}
-    {3906072000 -18000 1 EASST}
-    {3919374000 -21600 0 EAST}
-    {3937521600 -18000 1 EASST}
-    {3950823600 -21600 0 EAST}
-    {3968971200 -18000 1 EASST}
-    {3982273200 -21600 0 EAST}
-    {4001025600 -18000 1 EASST}
-    {4013722800 -21600 0 EAST}
-    {4032475200 -18000 1 EASST}
-    {4045172400 -21600 0 EAST}
-    {4063924800 -18000 1 EASST}
-    {4077226800 -21600 0 EAST}
-    {4095374400 -18000 1 EASST}
+    {1367118000 -21600 0 EAST}
+    {1378612800 -18000 1 EASST}
+    {1398567600 -21600 0 EAST}
+    {1410062400 -18000 1 EASST}
+    {1430017200 -18000 0 EAST}
 }
diff --git a/library/tzdata/Pacific/Fakaofo b/library/tzdata/Pacific/Fakaofo
index 6cfdbd1..6ec98eb 100644
--- a/library/tzdata/Pacific/Fakaofo
+++ b/library/tzdata/Pacific/Fakaofo
@@ -2,6 +2,6 @@
 
 set TZData(:Pacific/Fakaofo) {
     {-9223372036854775808 -41096 0 LMT}
-    {-2177411704 -36000 0 TKT}
-    {1325239200 50400 0 TKT}
+    {-2177411704 -39600 0 TKT}
+    {1325242800 46800 0 TKT}
 }
diff --git a/library/tzdata/Pacific/Fiji b/library/tzdata/Pacific/Fiji
index a408094..4aae330 100644
--- a/library/tzdata/Pacific/Fiji
+++ b/library/tzdata/Pacific/Fiji
@@ -1,8 +1,8 @@
 # created by tools/tclZIC.tcl - do not edit
 
 set TZData(:Pacific/Fiji) {
-    {-9223372036854775808 42820 0 LMT}
-    {-1709985220 43200 0 FJT}
+    {-9223372036854775808 42944 0 LMT}
+    {-1709985344 43200 0 FJT}
     {909842400 46800 1 FJST}
     {920124000 43200 0 FJT}
     {941896800 46800 1 FJST}
@@ -13,4 +13,179 @@ set TZData(:Pacific/Fiji) {
     {1299333600 43200 0 FJT}
     {1319292000 46800 1 FJST}
     {1327154400 43200 0 FJT}
+    {1350741600 46800 1 FJST}
+    {1358604000 43200 0 FJT}
+    {1382796000 46800 1 FJST}
+    {1390050000 43200 0 FJT}
+    {1414850400 46800 1 FJST}
+    {1421503200 43200 0 FJT}
+    {1446300000 46800 1 FJST}
+    {1453557600 43200 0 FJT}
+    {1478354400 46800 1 FJST}
+    {1485007200 43200 0 FJT}
+    {1509804000 46800 1 FJST}
+    {1516456800 43200 0 FJT}
+    {1541253600 46800 1 FJST}
+    {1547906400 43200 0 FJT}
+    {1572703200 46800 1 FJST}
+    {1579356000 43200 0 FJT}
+    {1604152800 46800 1 FJST}
+    {1611410400 43200 0 FJT}
+    {1636207200 46800 1 FJST}
+    {1642860000 43200 0 FJT}
+    {1667656800 46800 1 FJST}
+    {1674309600 43200 0 FJT}
+    {1699106400 46800 1 FJST}
+    {1705759200 43200 0 FJT}
+    {1730556000 46800 1 FJST}
+    {1737208800 43200 0 FJT}
+    {1762005600 46800 1 FJST}
+    {1768658400 43200 0 FJT}
+    {1793455200 46800 1 FJST}
+    {1800712800 43200 0 FJT}
+    {1825509600 46800 1 FJST}
+    {1832162400 43200 0 FJT}
+    {1856959200 46800 1 FJST}
+    {1863612000 43200 0 FJT}
+    {1888408800 46800 1 FJST}
+    {1895061600 43200 0 FJT}
+    {1919858400 46800 1 FJST}
+    {1926511200 43200 0 FJT}
+    {1951308000 46800 1 FJST}
+    {1957960800 43200 0 FJT}
+    {1983362400 46800 1 FJST}
+    {1990015200 43200 0 FJT}
+    {2014812000 46800 1 FJST}
+    {2021464800 43200 0 FJT}
+    {2046261600 46800 1 FJST}
+    {2052914400 43200 0 FJT}
+    {2077711200 46800 1 FJST}
+    {2084364000 43200 0 FJT}
+    {2109160800 46800 1 FJST}
+    {2115813600 43200 0 FJT}
+    {2140610400 46800 1 FJST}
+    {2147868000 43200 0 FJT}
+    {2172664800 46800 1 FJST}
+    {2179317600 43200 0 FJT}
+    {2204114400 46800 1 FJST}
+    {2210767200 43200 0 FJT}
+    {2235564000 46800 1 FJST}
+    {2242216800 43200 0 FJT}
+    {2267013600 46800 1 FJST}
+    {2273666400 43200 0 FJT}
+    {2298463200 46800 1 FJST}
+    {2305116000 43200 0 FJT}
+    {2329912800 46800 1 FJST}
+    {2337170400 43200 0 FJT}
+    {2361967200 46800 1 FJST}
+    {2368620000 43200 0 FJT}
+    {2393416800 46800 1 FJST}
+    {2400069600 43200 0 FJT}
+    {2424866400 46800 1 FJST}
+    {2431519200 43200 0 FJT}
+    {2456316000 46800 1 FJST}
+    {2462968800 43200 0 FJT}
+    {2487765600 46800 1 FJST}
+    {2495023200 43200 0 FJT}
+    {2519820000 46800 1 FJST}
+    {2526472800 43200 0 FJT}
+    {2551269600 46800 1 FJST}
+    {2557922400 43200 0 FJT}
+    {2582719200 46800 1 FJST}
+    {2589372000 43200 0 FJT}
+    {2614168800 46800 1 FJST}
+    {2620821600 43200 0 FJT}
+    {2645618400 46800 1 FJST}
+    {2652271200 43200 0 FJT}
+    {2677068000 46800 1 FJST}
+    {2684325600 43200 0 FJT}
+    {2709122400 46800 1 FJST}
+    {2715775200 43200 0 FJT}
+    {2740572000 46800 1 FJST}
+    {2747224800 43200 0 FJT}
+    {2772021600 46800 1 FJST}
+    {2778674400 43200 0 FJT}
+    {2803471200 46800 1 FJST}
+    {2810124000 43200 0 FJT}
+    {2834920800 46800 1 FJST}
+    {2841573600 43200 0 FJT}
+    {2866975200 46800 1 FJST}
+    {2873628000 43200 0 FJT}
+    {2898424800 46800 1 FJST}
+    {2905077600 43200 0 FJT}
+    {2929874400 46800 1 FJST}
+    {2936527200 43200 0 FJT}
+    {2961324000 46800 1 FJST}
+    {2967976800 43200 0 FJT}
+    {2992773600 46800 1 FJST}
+    {2999426400 43200 0 FJT}
+    {3024223200 46800 1 FJST}
+    {3031480800 43200 0 FJT}
+    {3056277600 46800 1 FJST}
+    {3062930400 43200 0 FJT}
+    {3087727200 46800 1 FJST}
+    {3094380000 43200 0 FJT}
+    {3119176800 46800 1 FJST}
+    {3125829600 43200 0 FJT}
+    {3150626400 46800 1 FJST}
+    {3157279200 43200 0 FJT}
+    {3182076000 46800 1 FJST}
+    {3188728800 43200 0 FJT}
+    {3213525600 46800 1 FJST}
+    {3220783200 43200 0 FJT}
+    {3245580000 46800 1 FJST}
+    {3252232800 43200 0 FJT}
+    {3277029600 46800 1 FJST}
+    {3283682400 43200 0 FJT}
+    {3308479200 46800 1 FJST}
+    {3315132000 43200 0 FJT}
+    {3339928800 46800 1 FJST}
+    {3346581600 43200 0 FJT}
+    {3371378400 46800 1 FJST}
+    {3378636000 43200 0 FJT}
+    {3403432800 46800 1 FJST}
+    {3410085600 43200 0 FJT}
+    {3434882400 46800 1 FJST}
+    {3441535200 43200 0 FJT}
+    {3466332000 46800 1 FJST}
+    {3472984800 43200 0 FJT}
+    {3497781600 46800 1 FJST}
+    {3504434400 43200 0 FJT}
+    {3529231200 46800 1 FJST}
+    {3535884000 43200 0 FJT}
+    {3560680800 46800 1 FJST}
+    {3567938400 43200 0 FJT}
+    {3592735200 46800 1 FJST}
+    {3599388000 43200 0 FJT}
+    {3624184800 46800 1 FJST}
+    {3630837600 43200 0 FJT}
+    {3655634400 46800 1 FJST}
+    {3662287200 43200 0 FJT}
+    {3687084000 46800 1 FJST}
+    {3693736800 43200 0 FJT}
+    {3718533600 46800 1 FJST}
+    {3725186400 43200 0 FJT}
+    {3750588000 46800 1 FJST}
+    {3757240800 43200 0 FJT}
+    {3782037600 46800 1 FJST}
+    {3788690400 43200 0 FJT}
+    {3813487200 46800 1 FJST}
+    {3820140000 43200 0 FJT}
+    {3844936800 46800 1 FJST}
+    {3851589600 43200 0 FJT}
+    {3876386400 46800 1 FJST}
+    {3883039200 43200 0 FJT}
+    {3907836000 46800 1 FJST}
+    {3915093600 43200 0 FJT}
+    {3939890400 46800 1 FJST}
+    {3946543200 43200 0 FJT}
+    {3971340000 46800 1 FJST}
+    {3977992800 43200 0 FJT}
+    {4002789600 46800 1 FJST}
+    {4009442400 43200 0 FJT}
+    {4034239200 46800 1 FJST}
+    {4040892000 43200 0 FJT}
+    {4065688800 46800 1 FJST}
+    {4072341600 43200 0 FJT}
+    {4097138400 46800 1 FJST}
 }
diff --git a/library/tzdata/Pacific/Johnston b/library/tzdata/Pacific/Johnston
index 7f9fee4..21ab39a 100644
--- a/library/tzdata/Pacific/Johnston
+++ b/library/tzdata/Pacific/Johnston
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Pacific/Johnston) {
-    {-9223372036854775808 -36000 0 HST}
+if {![info exists TZData(Pacific/Honolulu)]} {
+    LoadTimeZoneFile Pacific/Honolulu
 }
+set TZData(:Pacific/Johnston) $TZData(:Pacific/Honolulu)
diff --git a/library/tzdata/Pacific/Midway b/library/tzdata/Pacific/Midway
index c07b030..d044569 100644
--- a/library/tzdata/Pacific/Midway
+++ b/library/tzdata/Pacific/Midway
@@ -1,10 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Pacific/Midway) {
-    {-9223372036854775808 -42568 0 LMT}
-    {-2177410232 -39600 0 NST}
-    {-428504400 -36000 1 NDT}
-    {-420645600 -39600 0 NST}
-    {-86878800 -39600 0 BST}
-    {439038000 -39600 0 SST}
+if {![info exists TZData(Pacific/Pago_Pago)]} {
+    LoadTimeZoneFile Pacific/Pago_Pago
 }
+set TZData(:Pacific/Midway) $TZData(:Pacific/Pago_Pago)
diff --git a/library/tzdata/Pacific/Pago_Pago b/library/tzdata/Pacific/Pago_Pago
index 830f9ee..ca261d0 100644
--- a/library/tzdata/Pacific/Pago_Pago
+++ b/library/tzdata/Pacific/Pago_Pago
@@ -3,8 +3,7 @@
 set TZData(:Pacific/Pago_Pago) {
     {-9223372036854775808 45432 0 LMT}
     {-2855738232 -40968 0 LMT}
-    {-1861879032 -41400 0 SAMT}
-    {-631110600 -39600 0 NST}
+    {-1861879032 -39600 0 NST}
     {-86878800 -39600 0 BST}
     {439038000 -39600 0 SST}
 }
diff --git a/library/tzdata/Pacific/Saipan b/library/tzdata/Pacific/Saipan
index b799298..4e769cd 100644
--- a/library/tzdata/Pacific/Saipan
+++ b/library/tzdata/Pacific/Saipan
@@ -1,9 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Pacific/Saipan) {
-    {-9223372036854775808 -51420 0 LMT}
-    {-3944626980 34980 0 LMT}
-    {-2177487780 32400 0 MPT}
-    {-7981200 36000 0 MPT}
-    {977493600 36000 0 ChST}
+if {![info exists TZData(Pacific/Guam)]} {
+    LoadTimeZoneFile Pacific/Guam
 }
+set TZData(:Pacific/Saipan) $TZData(:Pacific/Guam)
diff --git a/library/word.tcl b/library/word.tcl
index 16a4638..b8f34a5 100644
--- a/library/word.tcl
+++ b/library/word.tcl
@@ -67,7 +67,7 @@ namespace eval ::tcl {
 proc tcl_wordBreakAfter {str start} {
     variable ::tcl::WordBreakRE
     set result {-1 -1}
-    regexp -indices -start $start $WordBreakRE(after) $str result
+    regexp -indices -start $start -- $WordBreakRE(after) $str result
     return [lindex $result 1]
 }
 
@@ -85,7 +85,7 @@ proc tcl_wordBreakAfter {str start} {
 proc tcl_wordBreakBefore {str start} {
     variable ::tcl::WordBreakRE
     set result {-1 -1}
-    regexp -indices $WordBreakRE(before) [string range $str 0 $start] result
+    regexp -indices -- $WordBreakRE(before) [string range $str 0 $start] result
     return [lindex $result 1]
 }
 
@@ -104,7 +104,7 @@ proc tcl_wordBreakBefore {str start} {
 proc tcl_endOfWord {str start} {
     variable ::tcl::WordBreakRE
     set result {-1 -1}
-    regexp -indices -start $start $WordBreakRE(end) $str result
+    regexp -indices -start $start -- $WordBreakRE(end) $str result
     return [lindex $result 1]
 }
 
@@ -122,7 +122,7 @@ proc tcl_endOfWord {str start} {
 proc tcl_startOfNextWord {str start} {
     variable ::tcl::WordBreakRE
     set result {-1 -1}
-    regexp -indices -start $start $WordBreakRE(next) $str result
+    regexp -indices -start $start -- $WordBreakRE(next) $str result
     return [lindex $result 1]
 }
 
@@ -138,7 +138,7 @@ proc tcl_startOfNextWord {str start} {
 proc tcl_startOfPreviousWord {str start} {
     variable ::tcl::WordBreakRE
     set word {-1 -1}
-    regexp -indices $WordBreakRE(previous) [string range $str 0 $start-1] \
+    regexp -indices -- $WordBreakRE(previous) [string range $str 0 $start-1] \
 	    result word
     return [lindex $word 0]
 }
diff --git a/license.terms b/license.terms
index 164d65e..d8049cd 100644
--- a/license.terms
+++ b/license.terms
@@ -29,7 +29,7 @@ MODIFICATIONS.
 
 GOVERNMENT USE: If you are acquiring this software on behalf of the
 U.S. government, the Government shall have only "Restricted Rights"
-in the software and related documentation as defined in the Federal 
+in the software and related documentation as defined in the Federal
 Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
 are acquiring the software on behalf of the Department of Defense, the
 software shall be classified as "Commercial Computer Software" and the
@@ -37,4 +37,4 @@ Government shall have only "Restricted Rights" as defined in Clause
 252.227-7014 (b) (3) of DFARs.  Notwithstanding the foregoing, the
 authors grant the U.S. Government and others acting in its behalf
 permission to use and distribute the software in accordance with the
-terms specified in this license. 
+terms specified in this license.
diff --git a/macosx/GNUmakefile b/macosx/GNUmakefile
index d7b0d1d..54eea8e 100644
--- a/macosx/GNUmakefile
+++ b/macosx/GNUmakefile
@@ -100,7 +100,7 @@ INSTALL_TARGET		:= install
 
 export CPPROG		:= cp -p
 
-INSTALL_TARGETS		= install-binaries install-libraries
+INSTALL_TARGETS		= install-binaries install-headers install-libraries
 ifeq (${EMBEDDED_BUILD},)
 INSTALL_TARGETS		+= install-private-headers
 endif
diff --git a/macosx/README b/macosx/README
index 6b944ca..bcffde3 100644
--- a/macosx/README
+++ b/macosx/README
@@ -20,8 +20,8 @@ before asking on the list, many questions have already been answered).
 	http://wiki.tcl.tk/_/ref?N=3753
 	http://wiki.tcl.tk/_/ref?N=8361
 
-- Please report bugs with Tcl or Tk on Mac OS X to the sourceforge bug trackers:
-	http://tcl.sourceforge.net/
+- Please report bugs with Tcl on Mac OS X to the tracker:
+	http://core.tcl.tk/tcl/reportlist
 
 2. Using Tcl on Mac OS X
 ------------------------
diff --git a/macosx/Tcl.xcode/project.pbxproj b/macosx/Tcl.xcode/project.pbxproj
index 6801d54..a2a703b 100644
--- a/macosx/Tcl.xcode/project.pbxproj
+++ b/macosx/Tcl.xcode/project.pbxproj
@@ -787,7 +787,6 @@
 		F96D443208F272B8004A47F5 /* README */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = README; sourceTree = "<group>"; };
 		F96D443308F272B8004A47F5 /* regexpTestLib.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = regexpTestLib.tcl; sourceTree = "<group>"; };
 		F96D443508F272B8004A47F5 /* tcl.hpj.in */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = tcl.hpj.in; sourceTree = "<group>"; };
-		F96D443608F272B8004A47F5 /* tcl.wse.in */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = tcl.wse.in; sourceTree = "<group>"; };
 		F96D443908F272B9004A47F5 /* tcltk-man2html.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = "tcltk-man2html.tcl"; sourceTree = "<group>"; };
 		F96D443A08F272B9004A47F5 /* tclZIC.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = tclZIC.tcl; sourceTree = "<group>"; };
 		F96D443B08F272B9004A47F5 /* uniClass.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = uniClass.tcl; sourceTree = "<group>"; };
@@ -1686,7 +1685,6 @@
 				F96D443208F272B8004A47F5 /* README */,
 				F96D443308F272B8004A47F5 /* regexpTestLib.tcl */,
 				F96D443508F272B8004A47F5 /* tcl.hpj.in */,
-				F96D443608F272B8004A47F5 /* tcl.wse.in */,
 				F96D443908F272B9004A47F5 /* tcltk-man2html.tcl */,
 				F96D443A08F272B9004A47F5 /* tclZIC.tcl */,
 				F92D7F100DE777240033A13A /* tsdPerf.tcl */,
diff --git a/macosx/Tcl.xcodeproj/project.pbxproj b/macosx/Tcl.xcodeproj/project.pbxproj
index b37f2e3..9c18ac0 100644
--- a/macosx/Tcl.xcodeproj/project.pbxproj
+++ b/macosx/Tcl.xcodeproj/project.pbxproj
@@ -787,7 +787,6 @@
 		F96D443208F272B8004A47F5 /* README */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = README; sourceTree = "<group>"; };
 		F96D443308F272B8004A47F5 /* regexpTestLib.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = regexpTestLib.tcl; sourceTree = "<group>"; };
 		F96D443508F272B8004A47F5 /* tcl.hpj.in */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = tcl.hpj.in; sourceTree = "<group>"; };
-		F96D443608F272B8004A47F5 /* tcl.wse.in */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = tcl.wse.in; sourceTree = "<group>"; };
 		F96D443908F272B9004A47F5 /* tcltk-man2html.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = "tcltk-man2html.tcl"; sourceTree = "<group>"; };
 		F96D443A08F272B9004A47F5 /* tclZIC.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = tclZIC.tcl; sourceTree = "<group>"; };
 		F96D443B08F272B9004A47F5 /* uniClass.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = uniClass.tcl; sourceTree = "<group>"; };
@@ -1686,7 +1685,6 @@
 				F96D443208F272B8004A47F5 /* README */,
 				F96D443308F272B8004A47F5 /* regexpTestLib.tcl */,
 				F96D443508F272B8004A47F5 /* tcl.hpj.in */,
-				F96D443608F272B8004A47F5 /* tcl.wse.in */,
 				F96D443908F272B9004A47F5 /* tcltk-man2html.tcl */,
 				F96D443A08F272B9004A47F5 /* tclZIC.tcl */,
 				F92D7F100DE777240033A13A /* tsdPerf.tcl */,
diff --git a/macosx/configure.ac b/macosx/configure.ac
index 01c3697..f7a8bb3 100644
--- a/macosx/configure.ac
+++ b/macosx/configure.ac
@@ -3,7 +3,7 @@ dnl	This file is an input file used by the GNU "autoconf" program to
 dnl	generate the file "configure", which is run during Tcl installation
 dnl	to configure the system for the local environment.
 
-dnl	Ensure that the config (auto)headers support is used, then just 
+dnl	Ensure that the config (auto)headers support is used, then just
 dnl	include the configure sources from ../unix:
 
 m4_include(../unix/aclocal.m4)
diff --git a/macosx/tclMacOSXFCmd.c b/macosx/tclMacOSXFCmd.c
index f266443..8ecfd0b 100644
--- a/macosx/tclMacOSXFCmd.c
+++ b/macosx/tclMacOSXFCmd.c
@@ -578,7 +578,7 @@ GetOSTypeFromObj(
     int result = TCL_OK;
 
     if (objPtr->typePtr != &tclOSTypeType) {
-	result = tclOSTypeType.setFromAnyProc(interp, objPtr);
+	result = SetOSTypeFromAny(interp, objPtr);
     }
     *osTypePtr = (OSType) objPtr->internalRep.longValue;
     return result;
@@ -608,7 +608,7 @@ NewOSTypeObj(
     Tcl_Obj *objPtr;
 
     TclNewObj(objPtr);
-    Tcl_InvalidateStringRep(objPtr);
+    TclInvalidateStringRep(objPtr);
     objPtr->internalRep.longValue = (long) osType;
     objPtr->typePtr = &tclOSTypeType;
     return objPtr;
diff --git a/macosx/tclMacOSXNotify.c b/macosx/tclMacOSXNotify.c
index ef80192..9b7bd1a 100644
--- a/macosx/tclMacOSXNotify.c
+++ b/macosx/tclMacOSXNotify.c
@@ -1412,7 +1412,8 @@ UpdateWaitingListAndServiceEvents(
 		(tsdPtr->runLoopNestingLevel > 1
 			|| !tsdPtr->runLoopRunning)) {
 	    tsdPtr->runLoopServicingEvents = 1;
-	    while (Tcl_ServiceAll() && tsdPtr->waitTime == 0) {}
+            /* This call seems to simply force event processing through and prevents hangups that have long been observed with Tk-Cocoa.  */
+	    Tcl_ServiceAll();
 	    tsdPtr->runLoopServicingEvents = 0;
 	}
 	break;
diff --git a/pkgs/README b/pkgs/README
index 01c6f43..159a237 100644
--- a/pkgs/README
+++ b/pkgs/README
@@ -36,14 +36,14 @@ needs to conform to the following conventions.
 
     clean:	Delete all files generated by the default build target.
 
-    distclean:	Delete all generated files. 
+    distclean:	Delete all generated files.
 
     dist:	Produce a copy of the package's source code distribution.
-		Must respect the DIST_ROOT variable determing where to
+		Must respect the DIST_ROOT variable determining where to
 		write the generated directory.
 
 Packages that are written to make use of the Tcl Extension Architecture (TEA)
-and that make use of the tclconfig collection of support files, should 
+and that make use of the tclconfig collection of support files, should
 conform to these conventions without further efforts.
 
 These conventions are subject to revision and refinement over time to
diff --git a/pkgs/package.list.txt b/pkgs/package.list.txt
new file mode 100644
index 0000000..0d5dcf8
--- /dev/null
+++ b/pkgs/package.list.txt
@@ -0,0 +1,35 @@
+# This file contains the mapping of directory names to package names for
+# documentation purposes. Each non-blank non-comment line is a two-element
+# list that says a possible name of directory (multiple lines may be needed
+# because of capitalization issues) and the documentation name of the package
+# to match. Pseudo-numeric suffixes are interpreted as version numbers.
+
+# [incr Tcl]
+itcl {[incr Tcl]}
+Itcl {[incr Tcl]}
+
+# SQLite
+Sqlite SQLite3
+sqlite SQLite3
+Sqlite3 SQLite3
+sqlite3 SQLite3
+
+# Thread
+Thread Thread
+thread Thread
+
+# Tcl Database Connectivity
+tdbc TDBC
+Tdbc TDBC
+TDBC TDBC
+# Drivers for TDBC
+Tdbcmysql	tdbc::mysql
+tdbcmysql	tdbc::mysql
+Tdbcodbc	tdbc::odbc
+tdbcodbc	tdbc::odbc
+Tdbcpostgres	tdbc::postgres
+tdbcpostgres	tdbc::postgres
+Tdbcsqlite3	tdbc::sqlite3
+tdbcsqlite3	tdbc::sqlite3
+Tdbcsqlite	tdbc::sqlite3
+tdbcsqlite	tdbc::sqlite3
diff --git a/tests/aaa_exit.test b/tests/aaa_exit.test
new file mode 100644
index 0000000..3ba5167
--- /dev/null
+++ b/tests/aaa_exit.test
@@ -0,0 +1,54 @@
+# Commands covered:  exit, emphasis on finalization hangs
+#
+# This file contains a collection of tests for one or more of the Tcl
+# built-in commands.  Sourcing this file into Tcl runs the tests and
+# generates output for errors.  No output means no errors were found.
+#
+# Copyright (c) 1991-1993 The Regents of the University of California.
+# Copyright (c) 1994-1997 Sun Microsystems, Inc.
+# Copyright (c) 1998-1999 by Scriptics Corporation.
+#
+# See the file "license.terms" for information on usage and redistribution
+# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+
+if {[lsearch [namespace children] ::tcltest] == -1} {
+    package require tcltest 2
+    namespace import -force ::tcltest::*
+}
+
+test exit-1.1 {normal, quick exit} {
+     set f [open "|[interpreter] << \"exec [interpreter] << {set ::env(TCL_FINALIZE_ON_EXIT) 0;exit}\"" r]
+     set aft [after 1000 {set done "Quick exit hangs !!!"}]
+     fileevent $f readable {after cancel $aft;set done OK}
+     vwait done
+     if {$done != "OK"} {
+     	fconfigure $f -blocking 0
+	close $f
+     } else {
+	if {[catch {close $f} err]} {
+	    set done "Quick exit misbehaves: $err"
+	}
+     }
+     set done
+} OK
+
+test exit-1.2 {full-finalized exit} {
+     set f [open "|[interpreter] << \"exec [interpreter] << {set ::env(TCL_FINALIZE_ON_EXIT) 1;exit}\"" r]
+     set aft [after 1000 {set done "Full-finalized exit hangs !!!"}]
+     fileevent $f readable {after cancel $aft;set done OK}
+     vwait done
+     if {$done != "OK"} {
+     	fconfigure $f -blocking 0
+	close $f
+     } else {
+	if {[catch {close $f} err]} {
+	    set done "Full-finalized exit misbehaves: $err"
+	}
+     }
+     set done
+} OK
+
+
+# cleanup
+::tcltest::cleanupTests
+return
diff --git a/tests/all.tcl b/tests/all.tcl
index 05d3024..0a6f57f 100644
--- a/tests/all.tcl
+++ b/tests/all.tcl
@@ -15,5 +15,8 @@ package require Tcl 8.5
 package require tcltest 2.2
 namespace import tcltest::*
 configure {*}$argv -testdir [file dir [info script]]
+if {[singleProcess]} {
+    interp debug {} -frame 1
+}
 runAllTests
 proc exit args {}
diff --git a/tests/append.test b/tests/append.test
index 69c6381..8fa4e61 100644
--- a/tests/append.test
+++ b/tests/append.test
@@ -292,6 +292,23 @@ test append-9.3 {bug 3057639, append direct eval, read trace on non-existing env
 } -cleanup {
     unset -nocomplain ::env(__DUMMY__)
 } -result {0 {new value}}
+
+test append-10.1 {Bug 214cc0eb22: lappend with no values} {
+    set lst "# 1 2 3"
+    [subst lappend] lst
+} "# 1 2 3"
+test append-10.2 {Bug 214cc0eb22: lappend with no values} -body {
+    set lst "1 \{ 2"
+    [subst lappend] lst
+} -returnCodes error -result {unmatched open brace in list}
+test append-10.3 {Bug 214cc0eb22: expanded lappend with no values} {
+    set lst "# 1 2 3"
+    [subst lappend] lst {*}[list]
+} "# 1 2 3"
+test append-10.4 {Bug 214cc0eb22: expanded lappend with no values} -body {
+    set lst "1 \{ 2"
+    [subst lappend] lst {*}[list]
+} -returnCodes error -result {unmatched open brace in list}
 
 unset -nocomplain i x result y
 catch {rename foo ""}
diff --git a/tests/appendComp.test b/tests/appendComp.test
index f85c3ba..bbf5f9c 100644
--- a/tests/appendComp.test
+++ b/tests/appendComp.test
@@ -438,6 +438,27 @@ test appendComp-9.3 {bug 3057639, append direct eval, read trace on non-existing
 } -cleanup {
     unset -nocomplain ::env(__DUMMY__)
 } -result {0 {new value}}
+
+test appendComp-10.1 {Bug 214cc0eb22: lappend with no values} {
+    apply {lst {
+	lappend lst
+    }} "# 1 2 3"
+} "# 1 2 3"
+test appendComp-10.2 {Bug 214cc0eb22: lappend with no values} -body {
+    apply {lst {
+	lappend lst
+    }} "1 \{ 2"
+} -returnCodes error -result {unmatched open brace in list}
+test appendComp-10.3 {Bug 214cc0eb22: expanded lappend with no values} {
+    apply {lst {
+	lappend lst {*}[list]
+    }} "# 1 2 3"
+} "# 1 2 3"
+test appendComp-10.4 {Bug 214cc0eb22: expanded lappend with no values} -body {
+    apply {lst {
+	lappend lst {*}[list]
+    }} "1 \{ 2"
+} -returnCodes error -result {unmatched open brace in list}
 
 catch {unset i x result y}
 catch {rename foo ""}
diff --git a/tests/assemble.test b/tests/assemble.test
index 7d4e5d1..b0487e6 100644
--- a/tests/assemble.test
+++ b/tests/assemble.test
@@ -175,8 +175,7 @@ test assemble-4.1 {syntax error} {
     -match glob
     -result {1 {extra characters after close-brace} {extra characters after close-brace
     while executing
-"{}extra
-	    "
+"{}e"
     ("assemble" body, line 2)*}}
 }
 test assemble-4.2 {null command} {
diff --git a/tests/assocd.test b/tests/assocd.test
index d1489b3..edf55c4 100644
--- a/tests/assocd.test
+++ b/tests/assocd.test
@@ -11,10 +11,8 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2
+namespace import ::tcltest::*
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
@@ -36,15 +34,21 @@ test assocd-1.4 {testing setting assoc data} testsetassocdata {
    testsetassocdata abc "abc d e f"
 } ""
 
-test assocd-2.1 {testing getting assoc data} testgetassocdata {
-   testgetassocdata a
-} 2
-test assocd-2.2 {testing getting assoc data} testgetassocdata {
-   testgetassocdata 123
-} 456
-test assocd-2.3 {testing getting assoc data} testgetassocdata {
+test assocd-2.1 {testing getting assoc data} -setup {
+    testsetassocdata a 2
+} -constraints {testgetassocdata} -body {
+    testgetassocdata a
+} -result 2
+test assocd-2.2 {testing getting assoc data} -setup {
+    testsetassocdata 123 456
+} -constraints {testgetassocdata} -body {
+    testgetassocdata 123
+} -result 456
+test assocd-2.3 {testing getting assoc data} -setup {
+   testsetassocdata abc "abc d e f"
+} -constraints {testgetassocdata} -body {
    testgetassocdata abc
-} {abc d e f}
+} -result "abc d e f"
 test assocd-2.4 {testing getting assoc data} testgetassocdata {
    testgetassocdata xxx
 } ""
@@ -60,5 +64,5 @@ test assocd-3.3 {testing deleting assoc data} testdelassocdata {
 } {0 {}}
 
 # cleanup
-::tcltest::cleanupTests
+cleanupTests
 return
diff --git a/tests/autoMkindex.test b/tests/autoMkindex.test
index 8f29131..4721553 100644
--- a/tests/autoMkindex.test
+++ b/tests/autoMkindex.test
@@ -236,6 +236,38 @@ test autoMkindex-3.3 {auto_mkindex_parser::command} -setup {
     # Reset initCommands to avoid trashing other tests
     AutoMkindexTestReset
 } -result "{::buried::mycmd4 $element} {::buried::mycmd5 $element} {mycmd6 $element}"
+makeFile {
+
+namespace eval wok {
+    namespace ensemble create -subcommands {commands vars}
+
+    proc commands {{pattern *}} {
+	puts [join [lsort -dictionary [info commands $pattern]] \n]
+    }
+
+    proc vars {{pattern *}} {
+	puts [join [lsort -dictionary [info vars $pattern]] \n]
+    }
+
+}
+
+} ensemblecommands.tcl
+
+test autoMkindex-3.4 {ensemble commands in tclIndex} {
+    file delete tclIndex
+    auto_mkindex . ensemblecommands.tcl
+    set f [open tclIndex r]
+    set dat [list]
+    foreach r [split [string trim [read $f]] "\n"] {
+	if {[string match {set auto_index*} $r]} {
+	    lappend dat $r
+	}
+    }
+    set result [lsort $dat]
+    close $f
+    set result
+} {{set auto_index(::wok::commands) [list source [file join $dir ensemblecommands.tcl]]} {set auto_index(::wok::vars) [list source [file join $dir ensemblecommands.tcl]]} {set auto_index(wok) [list source [file join $dir ensemblecommands.tcl]]}}
+removeFile ensemblecommands.tcl
 
 test autoMkindex-4.1 {platform independent source commands} -setup {
     file delete tclIndex
diff --git a/tests/basic.test b/tests/basic.test
index 7435571..1a0037c 100644
--- a/tests/basic.test
+++ b/tests/basic.test
@@ -16,7 +16,7 @@
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
 package require tcltest 2
-namespace import -force ::tcltest::*
+namespace import ::tcltest::*
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
@@ -31,7 +31,7 @@ catch {interp delete test_interp}
 catch {rename p ""}
 catch {rename q ""}
 catch {rename cmd ""}
-catch {unset x}
+unset -nocomplain x
 
 test basic-1.1 {Tcl_CreateInterp, creates interp's global namespace} {
     catch {interp delete test_interp}
@@ -267,14 +267,24 @@ test basic-18.4 {TclRenameCommand, bad new name} {
     }
     rename test_ns_basic::p :::george::martha
 } {}
-test basic-18.5 {TclRenameCommand, new name must not already exist} {
+test basic-18.5 {TclRenameCommand, new name must not already exist} -setup {
+    if {![llength [info commands :::george::martha]]} {
+        catch {namespace delete {*}[namespace children :: test_ns_*]}
+        namespace eval test_ns_basic {
+            proc p {} {
+                return "p in [namespace current]"
+            }
+        }
+        rename test_ns_basic::p :::george::martha
+    }
+} -body {
     namespace eval test_ns_basic {
         proc q {} {
             return 42
         }
     }
     list [catch {rename test_ns_basic::q :::george::martha} msg] $msg
-} {1 {can't rename to ":::george::martha": command already exists}}
+} -result {1 {can't rename to ":::george::martha": command already exists}}
 test basic-18.6 {TclRenameCommand, check for command shadowing by newly renamed cmd} {
     catch {namespace delete {*}[namespace children :: test_ns_*]}
     catch {rename p ""}
@@ -302,7 +312,7 @@ test basic-20.1 {Tcl_GetCommandInfo, names for commands created inside namespace
     catch {namespace delete {*}[namespace children :: test_ns_*]}
     catch {rename p ""}
     catch {rename q ""}
-    catch {unset x}
+    unset -nocomplain x
     set x [namespace eval test_ns_basic::test_ns_basic2 {
         # the following creates a cmd in the global namespace
         testcmdtoken create p
@@ -355,7 +365,7 @@ test basic-23.1 {Tcl_DeleteCommand} {emptyTest} {
 
 test basic-24.1 {Tcl_DeleteCommandFromToken, invalidate all compiled code if cmd has compile proc} {
     catch {interp delete test_interp}
-    catch {unset x}
+    unset -nocomplain x
     interp create test_interp
     interp eval test_interp {
         proc useSet {} {
@@ -427,7 +437,7 @@ test basic-26.1 {Tcl_EvalObj: preserve object while evaling it} -setup {
     # string would have been freed, leaving garbage bytes for the error
     # message.
     set f [open $fName w]
-    fileevent $f writable "fileevent $f writable {}; error foo"
+    chan event $f writable "chan event $f writable {}; error foo"
     set x {}
     vwait x
     close $f
@@ -547,8 +557,8 @@ test basic-46.1 {Tcl_AllowExceptions: exception return not allowed} {stdio} {
     catch {close $f}
     set res [catch {
 	set f [open |[list [interpreter]] w+]
-	fconfigure $f -buffering line
-	puts $f {fconfigure stdout -buffering line}
+	chan configure $f -buffering line
+	puts $f {chan configure stdout -buffering line}
 	puts $f continue
 	puts $f {puts $::errorInfo}
 	puts $f {puts DONE}
@@ -972,6 +982,6 @@ catch {rename p ""}
 catch {rename q ""}
 catch {rename cmd ""}
 catch {rename value:at: ""}
-catch {unset x}
-::tcltest::cleanupTests
+unset -nocomplain x
+cleanupTests
 return
diff --git a/tests/binary.test b/tests/binary.test
index 6c00508..40b1315 100644
--- a/tests/binary.test
+++ b/tests/binary.test
@@ -1582,38 +1582,46 @@ test binary-40.4 {ScanNumber: NaN} -body {
     list [binary scan \xff\xff\xff\xff\xff\xff\xff\xff d arg1] $arg1
 } -match glob -result {1 -NaN*}
 
-test binary-41.1 {ScanNumber: word alignment} {
-    unset -nocomplain arg1; unset arg2
+test binary-41.1 {ScanNumber: word alignment} -setup {
+    unset -nocomplain arg1 arg2
+} -body {
     list [binary scan \x01\x01\x00 c1s1 arg1 arg2] $arg1 $arg2
-} {2 1 1}
-test binary-41.2 {ScanNumber: word alignment} {
-    unset -nocomplain arg1; unset arg2
+} -result {2 1 1}
+test binary-41.2 {ScanNumber: word alignment} -setup {
+    unset -nocomplain arg1 arg2
+} -body {
     list [binary scan \x01\x00\x01 c1S1 arg1 arg2] $arg1 $arg2
-} {2 1 1}
-test binary-41.3 {ScanNumber: word alignment} {
-    unset -nocomplain arg1; unset arg2
+} -result {2 1 1}
+test binary-41.3 {ScanNumber: word alignment} -setup {
+    unset -nocomplain arg1 arg2
+} -body {
     list [binary scan \x01\x01\x00\x00\x00 c1i1 arg1 arg2] $arg1 $arg2
-} {2 1 1}
-test binary-41.4 {ScanNumber: word alignment} {
-    unset -nocomplain arg1; unset arg2
+} -result {2 1 1}
+test binary-41.4 {ScanNumber: word alignment} -setup {
+    unset -nocomplain arg1 arg2
+} -body {
     list [binary scan \x01\x00\x00\x00\x01 c1I1 arg1 arg2] $arg1 $arg2
-} {2 1 1}
-test binary-41.5 {ScanNumber: word alignment} bigEndian {
-    unset -nocomplain arg1; unset arg2
+} -result {2 1 1}
+test binary-41.5 {ScanNumber: word alignment} -setup {
+    unset -nocomplain arg1 arg2
+} -constraints bigEndian -body {
     list [binary scan \x01\x3f\xcc\xcc\xcd c1f1 arg1 arg2] $arg1 $arg2
-} {2 1 1.600000023841858}
-test binary-41.6 {ScanNumber: word alignment} littleEndian {
-    unset -nocomplain arg1; unset arg2
+} -result {2 1 1.600000023841858}
+test binary-41.6 {ScanNumber: word alignment} -setup {
+    unset -nocomplain arg1 arg2
+} -constraints littleEndian -body {
     list [binary scan \x01\xcd\xcc\xcc\x3f c1f1 arg1 arg2] $arg1 $arg2
-} {2 1 1.600000023841858}
-test binary-41.7 {ScanNumber: word alignment} bigEndian {
-    unset -nocomplain arg1; unset arg2
+} -result {2 1 1.600000023841858}
+test binary-41.7 {ScanNumber: word alignment} -setup {
+    unset -nocomplain arg1 arg2
+} -constraints bigEndian -body {
     list [binary scan \x01\x3f\xf9\x99\x99\x99\x99\x99\x9a c1d1 arg1 arg2] $arg1 $arg2
-} {2 1 1.6}
-test binary-41.8 {ScanNumber: word alignment} littleEndian {
-    unset -nocomplain arg1; unset arg2
+} -result {2 1 1.6}
+test binary-41.8 {ScanNumber: word alignment} -setup {
+    unset -nocomplain arg1 arg2
+} -constraints littleEndian -body {
     list [binary scan \x01\x9a\x99\x99\x99\x99\x99\xf9\x3f c1d1 arg1 arg2] $arg1 $arg2
-} {2 1 1.6}
+} -result {2 1 1.6}
 
 test binary-42.1 {Tcl_BinaryObjCmd: bad arguments} -constraints {} -body {
     binary ?
@@ -2491,6 +2499,34 @@ test binary-71.9 {binary decode hex} -body {
 test binary-71.10 {binary decode hex} -body {
     string length [binary decode hex " "]
 } -result 0
+test binary-71.11 {binary decode hex: Bug b98fa55285} -body {
+    apply {{} {
+	set str "137b6f95e7519389e7c4b36599781e2ccf492699649249aae43fbe8c26\n"
+	set decoded [binary decode hex $str]
+	list [string length $decoded] [scan [string index $decoded end] %c]
+    }}
+} -result {29 38}
+test binary-71.12 {binary decode hex: Bug b98fa55285 cross check} -body {
+    apply {{} {
+	set str "137b6f95e7519389e7c4b36599781e2ccf492699649249aae43fbe8c2\n"
+	set decoded [binary decode hex $str]
+	list [string length $decoded] [scan [string index $decoded end] %c]
+    }}
+} -result {28 140}
+test binary-71.13 {binary decode hex: Bug b98fa55285 cross check} -body {
+    apply {{} {
+	set str "137b6f95e7519389e7c4b36599781e2ccf492699649249aae43fbe8c2\n\n"
+	set decoded [binary decode hex $str]
+	list [string length $decoded] [scan [string index $decoded end] %c]
+    }}
+} -result {28 140}
+test binary-71.14 {binary decode hex: Bug b98fa55285 cross check} -body {
+    apply {{} {
+	set str "137b6f95e7519389e7c4b36599781e2ccf492699649249aae43fbe8c2\n\n\n"
+	set decoded [binary decode hex $str]
+	list [string length $decoded] [scan [string index $decoded end] %c]
+    }}
+} -result {28 140}
 
 test binary-72.1 {binary encode base64} -body {
     binary encode base64
@@ -2642,111 +2678,143 @@ test binary-73.23 {binary decode base64} -body {
 test binary-73.24 {binary decode base64} -body {
     string length [binary decode base64 " "]
 } -result 0
+test binary-73.25 {binary decode base64} -body {
+    list [string length [set r [binary decode base64 WA==\n]]] $r
+} -result {1 X}
+test binary-73.26 {binary decode base64} -body {
+    list [string length [set r [binary decode base64 WFk=\n]]] $r
+} -result {2 XY}
+test binary-73.27 {binary decode base64} -body {
+    list [string length [set r [binary decode base64 WFla\n]]] $r
+} -result {3 XYZ}
+test binary-73.28 {binary decode base64} -body {
+    list [string length [set r [binary decode base64 -strict WA==\n]]] $r
+} -returnCodes error -match glob -result {invalid base64 character *}
+test binary-73.29 {binary decode base64} -body {
+    list [string length [set r [binary decode base64 -strict WFk=\n]]] $r
+} -returnCodes error -match glob -result {invalid base64 character *}
+test binary-73.30 {binary decode base64} -body {
+    list [string length [set r [binary decode base64 -strict WFla\n]]] $r
+} -returnCodes error -match glob -result {invalid base64 character *}
+test binary-73.31 {binary decode base64} -body {
+    list [string length [set r [binary decode base64 WA==WFla]]] $r
+} -returnCodes error -match glob -result {invalid base64 character *}
 
 test binary-74.1 {binary encode uuencode} -body {
     binary encode uuencode
 } -returnCodes error -match glob -result "wrong # args: *"
 test binary-74.2 {binary encode uuencode} -body {
     binary encode uuencode abc
-} -result {86)C}
+} -result {#86)C
+}
 test binary-74.3 {binary encode uuencode} -body {
     binary encode uuencode {}
 } -result {}
 test binary-74.4 {binary encode uuencode} -body {
     binary encode uuencode [string repeat abc 20]
-} -result [string repeat 86)C 20]
+} -result "M[string repeat 86)C 15]\n/[string repeat 86)C 5]\n"
 test binary-74.5 {binary encode uuencode} -body {
     binary encode uuencode \0\1\2\3\4\0\1\2\3
-} -result "``\$\"`P0``0(#"
+} -result ")``\$\"`P0``0(#\n"
 test binary-74.6 {binary encode uuencode} -body {
     binary encode uuencode \0
-} -result {````}
+} -result {!``
+}
 test binary-74.7 {binary encode uuencode} -body {
     binary encode uuencode \0\0
-} -result {````}
+} -result "\"```
+"
 test binary-74.8 {binary encode uuencode} -body {
     binary encode uuencode \0\0\0
-} -result {````}
+} -result {#````
+}
 test binary-74.9 {binary encode uuencode} -body {
     binary encode uuencode \0\0\0\0
-} -result {````````}
-test binary-74.10 {binary encode uuencode} -body {
-    binary encode uuencode -maxlen 0 -wrapchar | abcabcabc
-} -result {86)C86)C86)C}
-test binary-74.11 {binary encode uuencode} -body {
-    binary encode uuencode -maxlen 1 -wrapchar | abcabcabc
-} -result {8|6|)|C|8|6|)|C|8|6|)|C}
+} -result {$``````
+}
+test binary-74.10 {binary encode uuencode} -returnCodes error -body {
+    binary encode uuencode -foo 30 abcabcabc
+} -result {bad option "-foo": must be -maxlen or -wrapchar}
+test binary-74.11 {binary encode uuencode} -returnCodes error -body {
+    binary encode uuencode -maxlen 1 abcabcabc
+} -result {line length out of range}
+test binary-74.12 {binary encode uuencode} -body {
+    binary encode uuencode -maxlen 3 -wrapchar | abcabcabc
+} -result {!80|!8@|!8P|!80|!8@|!8P|!80|!8@|!8P|}
 
 test binary-75.1 {binary decode uuencode} -body {
     binary decode uuencode
 } -returnCodes error -match glob -result "wrong # args: *"
 test binary-75.2 {binary decode uuencode} -body {
-    binary decode uuencode 86)C
+    binary decode uuencode "#86)C\n"
 } -result {abc}
 test binary-75.3 {binary decode uuencode} -body {
     binary decode uuencode {}
 } -result {}
+test binary-75.3.1 {binary decode uuencode} -body {
+    binary decode uuencode `\n
+} -result {}
 test binary-75.4 {binary decode uuencode} -body {
-    binary decode uuencode [string repeat "86)C" 20]
+    binary decode uuencode "M[string repeat 86)C 15]\n/[string repeat 86)C 5]\n"
 } -result [string repeat abc 20]
 test binary-75.5 {binary decode uuencode} -body {
-    binary decode uuencode "``\$\"`P0``0(#"
+    binary decode uuencode ")``\$\"`P0``0(#"
 } -result "\0\1\2\3\4\0\1\2\3"
 test binary-75.6 {binary decode uuencode} -body {
-    string length [binary decode uuencode {`}]
+    string length [binary decode uuencode "`\n"]
 } -result 0
 test binary-75.7 {binary decode uuencode} -body {
-    string length [binary decode uuencode {``}]
+    string length [binary decode uuencode "!`\n"]
 } -result 1
 test binary-75.8 {binary decode uuencode} -body {
-    string length [binary decode uuencode {```}]
+    string length [binary decode uuencode "\"``\n"]
 } -result 2
 test binary-75.9 {binary decode uuencode} -body {
-    string length [binary decode uuencode {````}]
+    string length [binary decode uuencode "#```\n"]
 } -result 3
 test binary-75.10 {binary decode uuencode} -body {
-    set s "[string repeat 86)C 10]\n[string repeat 86)C 10]"
+    set s ">[string repeat 86)C 10]\n>[string repeat 86)C 10]"
     binary decode uuencode $s
 } -result [string repeat abc 20]
 test binary-75.11 {binary decode uuencode} -body {
-    set s "[string repeat 86)C 10]\n    [string repeat 86)C 10]"
+    set s ">[string repeat 86)C 10]\n\t>\t[string repeat 86)C 10]\r"
     binary decode uuencode $s
 } -result [string repeat abc 20]
 test binary-75.12 {binary decode uuencode} -body {
     binary decode uuencode -strict "|86)C"
 } -returnCodes error -match glob -result {invalid uuencode character "|" at position 0}
 test binary-75.13 {binary decode uuencode} -body {
-    set s "[string repeat 86)C 10]|[string repeat 86)C 10]"
+    set s ">[string repeat 86)C 10]|[string repeat 86)C 10]"
     binary decode uuencode -strict $s
-} -returnCodes error -match glob -result {invalid uuencode character "|" at position 40}
+} -returnCodes error -match glob -result {invalid uuencode character "|" at position 41}
 test binary-75.14 {binary decode uuencode} -body {
-    set s "[string repeat 86)C 10]\n    [string repeat 86)C 10]"
+    set s ">[string repeat 86)C 10]\na[string repeat 86)C 10]"
     binary decode uuencode -strict $s
 } -returnCodes error -match glob -result {invalid uuencode character *}
 test binary-75.20 {binary decode uuencode} -body {
-    set r [binary decode uuencode 8]
+    set r [binary decode uuencode " 8"]
     list [string length $r] $r
 } -result {0 {}}
 test binary-75.21 {binary decode uuencode} -body {
-    set r [binary decode uuencode 86]
+    set r [binary decode uuencode "!86"]
     list [string length $r] $r
 } -result {1 a}
 test binary-75.22 {binary decode uuencode} -body {
-    set r [binary decode uuencode 86)]
+    set r [binary decode uuencode "\"86)"]
     list [string length $r] $r
 } -result {2 ab}
 test binary-75.23 {binary decode uuencode} -body {
-    set r [binary decode uuencode 86)C]
+    set r [binary decode uuencode "#86)C"]
     list [string length $r] $r
 } -result {3 abc}
 test binary-75.24 {binary decode uuencode} -body {
-    set s "04)\# "
+    set s "#04)\# "
     binary decode uuencode $s
 } -result ABC
 test binary-75.25 {binary decode uuencode} -body {
-    set s "04)\#z"
+    set s "#04)\#z"
     binary decode uuencode $s
-} -returnCodes error -match glob -result {invalid uuencode character "z" at position 4}
+} -returnCodes error -match glob -result {invalid uuencode character "z" at position 5}
 test binary-75.26 {binary decode uuencode} -body {
     string length [binary decode uuencode " "]
 } -result 0
diff --git a/tests/chan.test b/tests/chan.test
index da44ffd..d8390e2 100644
--- a/tests/chan.test
+++ b/tests/chan.test
@@ -61,7 +61,7 @@ test chan-4.5 {chan command: check valid inValue, invalid outValue} -body {
 } -returnCodes error -match glob -result {bad value for -eofchar:*}
 test chan-4.6 {chan command: check no inValue, valid outValue} -body {
     chan configure stdout -eofchar [list {} \x27]
-} -returnCodes ok -result {}
+} -returnCodes ok -result {} -cleanup {chan configure stdout -eofchar [list {} {}]}
 
 test chan-5.1 {chan command: copy subcommand} -body {
     chan copy foo
diff --git a/tests/chanio.test b/tests/chanio.test
index 9bb11f7..2738fc6 100644
--- a/tests/chanio.test
+++ b/tests/chanio.test
@@ -13,10 +13,16 @@
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[catch {package require tcltest 2}]} {
-    chan puts stderr "Skipping tests in [info script].  tcltest 2 required."
-    return
+if {[lsearch [namespace children] ::tcltest] == -1} {
+    package require tcltest 2
+    namespace import -force ::tcltest::*
 }
+
+::tcltest::loadTestedCommands
+catch [list package require -exact Tcltest [info patchlevel]]
+
+testConstraint testbytestring [llength [info commands testbytestring]]
+
 namespace eval ::tcl::test::io {
     namespace import ::tcltest::*
 
@@ -40,11 +46,11 @@ namespace eval ::tcl::test::io {
     testConstraint testfevent       [llength [info commands testfevent]]
     testConstraint testchannelevent [llength [info commands testchannelevent]]
     testConstraint testmainthread   [llength [info commands testmainthread]]
-    testConstraint thread [expr {0 == [catch {package require Thread 2.6}]}]
+    testConstraint thread [expr {0 == [catch {package require Thread 2.7-}]}]
 
     # You need a *very* special environment to do some tests.  In particular,
     # many file systems do not support large-files...
-    testConstraint largefileSupport 0
+    testConstraint largefileSupport [expr {$::tcl_platform(os) ne "Darwin"}]
 
     # some tests can only be run is umask is 2 if "umask" cannot be run, the
     # tests will be skipped.
@@ -2214,13 +2220,17 @@ test chan-io-28.7 {Tcl_CloseEx (half-close) socket} -setup {
 	puts $sok DONE
 	exit 0
     } echo.tcl]
-} -body {
+    variable done
+    unset -nocomplain done
+    set done ""
+    set timer ""
     set ff [openpipe r $echo]
     gets $ff port
+} -body {
     set s [socket 127.0.0.1 $port]
     puts $s Hey
     close $s w
-    set timer [after 1000 [namespace code {set ::done Failed}]]
+    set timer [after 1000 [namespace code {set done Failed}]]
     set acc {}
     fileevent $s readable [namespace code {
 	if {[gets $s line]<0} {
@@ -2230,11 +2240,11 @@ test chan-io-28.7 {Tcl_CloseEx (half-close) socket} -setup {
 	}
     }]
     vwait [namespace which -variable done]
-    after cancel $timer
-    close $s r
-    close $ff
     list $done $acc
 } -cleanup {
+    catch {close $s}
+    close $ff
+    after cancel $timer
     removeFile echo.tcl
 } -result {Succeeded {Hey DONE}}
 
@@ -4516,10 +4526,10 @@ test chan-io-34.21 {Tcl_Seek and Tcl_Tell on large files} -setup {
     chan puts -nonewline $f abcdef
     lappend l [chan tell $f]
     chan close $f
-    lappend l [file size $f]
+    lappend l [file size $path(test3)]
     # truncate...
     chan close [open $path(test3) w]
-    lappend l [file size $f]
+    lappend l [file size $path(test3)]
 } -result {0 6 6 4294967296 4294967302 4294967302 0}
 
 # Test Tcl_Eof
@@ -7422,11 +7432,11 @@ test chan-io-59.1 {Thread reference of channels} {testmainthread testchannel} {
     string equal $result [testmainthread]
 } {1}
 
-test chan-io-60.1 {writing illegal utf sequences} {openpipe fileevent} {
+test chan-io-60.1 {writing illegal utf sequences} {openpipe fileevent testbytestring} {
     # This test will hang in older revisions of the core.
     set out [open $path(script) w]
     chan puts $out {
-	chan puts [encoding convertfrom identity \xe2]
+	chan puts [testbytestring \xe2]
 	exit 1
     }
     proc readit {pipe} {
diff --git a/tests/clock.test b/tests/clock.test
index 0202fc7..2abeab9 100644
--- a/tests/clock.test
+++ b/tests/clock.test
@@ -273,7 +273,7 @@ test clock-1.4 "clock format - bad flag" {*}{
     list [catch {clock format 0 -oops badflag} msg] $msg $::errorCode
     } 
     -match glob
-    -result {1 {bad switch "-oops": must be -format, -gmt, -locale, or -timezone} {CLOCK badSwitch -oops}}
+    -result {1 {bad option "-oops": must be -format, -gmt, -locale, or -timezone} {CLOCK badOption -oops}}
 }
 
 test clock-1.5 "clock format - bad timezone" {
@@ -35450,7 +35450,7 @@ test clock-33.2 {clock clicks tests} {
 } {1}
 test clock-33.3 {clock clicks tests} {
     list [catch {clock clicks foo} msg] $msg
-} {1 {bad switch "foo": must be -milliseconds or -microseconds}}
+} {1 {bad option "foo": must be -milliseconds or -microseconds}}
 test clock-33.4 {clock clicks tests} {
     expr [clock clicks -milliseconds]+1
     concat {}
@@ -35485,10 +35485,10 @@ test clock-33.5a {clock tests, millisecond timing test} {
 } {ok}
 test clock-33.6 {clock clicks, milli with too much abbreviation} {
     list [catch { clock clicks ? } msg] $msg
-} {1 {bad switch "?": must be -milliseconds or -microseconds}}
+} {1 {bad option "?": must be -milliseconds or -microseconds}}
 test clock-33.7 {clock clicks, milli with too much abbreviation} {
     list [catch { clock clicks - } msg] $msg
-} {1 {ambiguous switch "-": must be -milliseconds or -microseconds}}
+} {1 {ambiguous option "-": must be -milliseconds or -microseconds}}
 
 test clock-33.8 {clock clicks test, microsecond timing test} {
     # This test can fail on a system that is so heavily loaded that
@@ -35607,7 +35607,7 @@ test clock-34.8 {clock scan tests} {
 } {Oct 23,1992 15:00 GMT}
 test clock-34.9 {clock scan tests} {
     list [catch {clock scan "Jan 12" -bad arg} msg] $msg
-} {1 {bad switch "-bad", must be -base, -format, -gmt, -locale or -timezone}}
+} {1 {bad option "-bad", must be -base, -format, -gmt, -locale or -timezone}}
 # The following two two tests test the two year date policy
 test clock-34.10 {clock scan tests} {
     set time [clock scan "1/1/71" -gmt true]
@@ -36907,7 +36907,7 @@ test clock-65.1 {clock add, bad option [Bug 2481670]} {*}{
     }
     -match glob
     -returnCodes error
-    -result {bad switch "-foo"*}
+    -result {bad option "-foo"*}
 }
 
 test clock-66.1 {clock scan, no date, never-before-seen timezone} {*}{
@@ -36927,6 +36927,15 @@ test clock-67.1 {clock format, %% with a letter following [Bug 2819334]} {
     clock format [clock seconds] -format %%r
 } %r
 
+test clock-67.2 {Bug d19a30db57} -body {
+    # error, not segfault
+    tcl::clock::GetJulianDayFromEraYearMonthDay {} 2361222
+} -returnCodes error -match glob -result *
+test clock-67.3 {Bug d19a30db57} -body {
+    # error, not segfault
+    tcl::clock::GetJulianDayFromEraYearWeekDay {} 2361222
+} -returnCodes error -match glob -result *
+
 # cleanup
 
 namespace delete ::testClock
diff --git a/tests/cmdAH.test b/tests/cmdAH.test
index 2ecf626..64cfeba 100644
--- a/tests/cmdAH.test
+++ b/tests/cmdAH.test
@@ -70,6 +70,12 @@ test cmdAH-1.2 {Tcl_CatchObjCmd, errors} {
 test cmdAH-1.3 {Tcl_CatchObjCmd, errors} -returnCodes error -body {
     catch foo bar baz spaz
 } -result {wrong # args: should be "catch script ?resultVarName? ?optionVarName?"}
+test cmdAH-1.4 {Bug 3595576} {
+    catch {catch {} -> noSuchNs::var}
+} 1
+test cmdAH-1.5 {Bug 3595576} {
+    catch {catch error -> noSuchNs::var}
+} 1
 
 test cmdAH-2.1 {Tcl_CdObjCmd} -returnCodes error -body {
     cd foo bar
@@ -135,6 +141,9 @@ test cmdAH-2.6.2 {cd} -constraints {unix nonPortable} -setup {
 } -cleanup {
     cd $dir
 } -result {/}
+test cmdAH-2.6.3 {Tcl_CdObjCmd, bug #3118489} -returnCodes error -body {
+    cd .\0
+} -result "couldn't change working directory to \".\0\": no such file or directory"
 test cmdAH-2.7 {Tcl_ConcatObjCmd} {
     concat
 } {}
@@ -820,13 +829,13 @@ test cmdAH-16.1 {Tcl_FileObjCmd: readable} {
 }
 test cmdAH-16.2 {Tcl_FileObjCmd: readable} {
     -constraints testchmod
-    -setup  	 {testchmod 0444 $gorpfile}
+    -setup  	 {testchmod 0o444 $gorpfile}
     -body   	 {file readable $gorpfile}
     -result 	 1
 }
 test cmdAH-16.3 {Tcl_FileObjCmd: readable} {
     -constraints {unix notRoot testchmod}
-    -setup  	 {testchmod 0333 $gorpfile}
+    -setup  	 {testchmod 0o333 $gorpfile}
     -body   	 {file readable $gorpfile}
     -result 	 0
 }
@@ -839,13 +848,13 @@ test cmdAH-17.1 {Tcl_FileObjCmd: writable} {
 }
 test cmdAH-17.2 {Tcl_FileObjCmd: writable} {
     -constraints {notRoot testchmod}
-    -setup  	 {testchmod 0555 $gorpfile}
+    -setup  	 {testchmod 0o555 $gorpfile}
     -body   	 {file writable $gorpfile}
     -result 	 0
 }
 test cmdAH-17.3 {Tcl_FileObjCmd: writable} {
     -constraints testchmod
-    -setup  	 {testchmod 0222 $gorpfile}
+    -setup  	 {testchmod 0o222 $gorpfile}
     -body   	 {file writable $gorpfile}
     -result 	 1
 }
@@ -864,7 +873,7 @@ test cmdAH-18.2 {Tcl_FileObjCmd: executable} {notRoot} {
 test cmdAH-18.3 {Tcl_FileObjCmd: executable} {unix testchmod} {
     # Only on unix will setting the execute bit on a regular file cause that
     # file to be executable.
-    testchmod 0775 $gorpfile
+    testchmod 0o775 $gorpfile
     file exe $gorpfile
 } 1
 test cmdAH-18.5 {Tcl_FileObjCmd: executable} -constraints {win} -body {
@@ -948,6 +957,19 @@ test cmdAH-19.11 {Tcl_FileObjCmd: exists} -constraints {unix notRoot} -setup {
     removeFile /tmp/tcl.foo.dir/file
     removeDirectory /tmp/tcl.foo.dir
 } -result 0
+test cmdAH-19.12 {Bug 3608360: [file exists] mustn't do globbing} -setup {
+    set newdirfile [makeDirectory newdir.file]
+    set cwd [pwd]
+    cd $newdirfile
+    # Content of file is totally unimportant; name is *not*
+    set innocentBystander [makeFile "abc" [file join $newdirfile foo.bar]]
+} -body {
+    list [file exists foo.bar] [file exists *.bar]
+} -cleanup {
+    cd $cwd
+    removeFile $innocentBystander
+    removeDirectory $newdirfile
+} -result {1 0}
 
 # Stat related commands
 
diff --git a/tests/cmdIL.test b/tests/cmdIL.test
index efb0bce..23a5f96 100644
--- a/tests/cmdIL.test
+++ b/tests/cmdIL.test
@@ -417,6 +417,15 @@ test cmdIL-4.34 {SortCompare procedure, -ascii option with -nocase option} {
 test cmdIL-4.35 {SortCompare procedure, -ascii option with -nocase option} {
     lsort -ascii -nocase {d E c B a D35 d300 100 20}
 } {100 20 a B c d d300 D35 E}
+test cmdIL-4.36 {SortCompare procedure, UTF-8 with -nocase option} {
+    scan [lsort -ascii -nocase [list \u101 \u100]] %c%c%c
+} {257 32 256}
+test cmdIL-4.37 {SortCompare procedure, UTF-8 with -nocase option} {
+    scan [lsort -ascii -nocase [list a\u0000a a]] %c%c%c%c%c
+} {97 32 97 0 97}
+test cmdIL-4.38 {SortCompare procedure, UTF-8 with -nocase option} {
+    scan [lsort -ascii -nocase [list a a\u0000a]] %c%c%c%c%c
+} {97 32 97 0 97}
 
 test cmdIL-5.1 {lsort with list style index} {
     lsort -ascii -decreasing -index {0 1} {
@@ -717,6 +726,16 @@ test cmdIL-7.8 {lreverse command - shared intrep [Bug 1675044]} -setup {
     rename K {}
 } -result 1
 
+# This belongs in info test, but adding tests there breaks tests
+# that compute source file line numbers.
+test info-20.6 {Bug 3587651} -setup {
+    namespace eval my {namespace eval tcl {namespace eval mathfunc {
+        proc demo x {return 42}
+    }}}} -body {    namespace eval my {expr {"demo" in [info functions]}}} -cleanup {
+    namespace delete my
+} -result 1
+
+
 # cleanup
 ::tcltest::cleanupTests
 return
diff --git a/tests/cmdInfo.test b/tests/cmdInfo.test
index 69d7171..0a587e8 100644
--- a/tests/cmdInfo.test
+++ b/tests/cmdInfo.test
@@ -13,10 +13,8 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest 2
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2
+namespace import ::tcltest::*
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
@@ -101,7 +99,7 @@ test cmdinfo-6.1 {Names for commands created when outside namespaces} \
 # cleanup
 catch {namespace delete cmdInfoNs1::cmdInfoNs2 cmdInfoNs1}
 catch {rename x1 ""}
-::tcltest::cleanupTests
+cleanupTests
 return
 
 # Local Variables:
diff --git a/tests/compile.test b/tests/compile.test
index 4d91940..d4a31d4 100644
--- a/tests/compile.test
+++ b/tests/compile.test
@@ -167,6 +167,36 @@ test compile-3.6 {TclCompileCatchCmd: error in storing result [Bug 3098302]} {*}
     -cleanup {namespace delete catchtest}
 }
 
+test compile-3.7 {TclCompileCatchCmd: error in storing options [Bug 3098302]} {*}{
+     -setup {
+	 namespace eval catchtest {
+	     variable options1 {}
+	 }
+	 trace add variable catchtest::options1 write catchtest::failtrace
+	 proc catchtest::failtrace {n1 n2 op} {
+	     return -code error "trace on $n1 fails by request"
+	 }
+     }
+    -body {
+	proc catchtest::x {} {
+	    variable options1
+	    set count 0
+	    for {set i 0} {$i < 10} {incr i} {
+		set status2 [catch {
+		    set status1 [catch {
+			return -code error -level 0 "original failure"
+		    } result1 options1]
+		} result2 options2]
+		incr count
+	    }
+	    list $count $result2
+	}
+	catchtest::x
+    }
+    -result {10 {can't set "options1": trace on options1 fails by request}}
+    -cleanup {namespace delete catchtest}
+}
+
 test compile-4.1 {TclCompileForCmd: command substituted test expression} {
     set i 0
     set j 0
@@ -425,14 +455,22 @@ test compile-13.1 {testing underestimate of maxStackSize in list cmd} {exec} {
     list [catch {exec [interpreter] << $script} msg] $msg
 } {0 OK}
 
-# Special test for compiling tokens from a copy of the source string. [Bug
-# 599788]
+# Tests compile-14.* for [Bug 599788] [Bug 0c043a175a47da8c2342]
 test compile-14.1 {testing errors in element name; segfault?} {} {
      catch {set a([error])} msg1
      catch {set bubba([join $abba $jubba]) $vol} msg2
      list $msg1 $msg2
 } {{wrong # args: should be "error message ?errorInfo? ?errorCode?"} {can't read "abba": no such variable}}
 
+test compile-14.2 {testing element name "$"} -body {
+    unset -nocomplain a
+    set a() 1
+    set a(1) 2 
+    set a($) 3
+    list [set a()] [set a(1)] [set a($)] [unset a() a(1); lindex [array names a] 0]
+} -cleanup {unset a} -result [list 1 2 3 {$}]
+
+
 # Tests compile-15.* cover Tcl Bug 633204
 test compile-15.1 {proper TCL_RETURN code from [return]} {
     apply {{} {catch return}}
@@ -628,12 +666,15 @@ test compile-17.2 {Command interpretation binding for non-compiled code} -setup
 # does not check the format of disassembled bytecode though; that's liable to
 # change without warning.
 
+set disassemblables [linsert [join {
+    lambda method objmethod proc script
+} ", "] end-1 or]
 test compile-18.1 {disassembler - basics} -returnCodes error -body {
     tcl::unsupported::disassemble
 } -match glob -result {wrong # args: should be "*"}
 test compile-18.2 {disassembler - basics} -returnCodes error -body {
     tcl::unsupported::disassemble ?
-} -match glob -result {bad type "?": must be *}
+} -result "bad type \"?\": must be $disassemblables"
 test compile-18.3 {disassembler - basics} -returnCodes error -body {
     tcl::unsupported::disassemble lambda
 } -match glob -result {wrong # args: should be "* lambda lambdaTerm"}
@@ -707,6 +748,153 @@ test compile-18.19 {disassembler - basics} -setup {
 } -cleanup {
     foo destroy
 } -match glob -result *
+# There never was a compile-18.20.
+# The keys of the dictionary produced by [getbytecode] are defined.
+set bytecodekeys {literals variables exception instructions auxiliary commands script namespace stackdepth exceptdepth}
+test compile-18.21 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode
+} -match glob -result {wrong # args: should be "*"}
+test compile-18.22 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode ?
+} -result "bad type \"?\": must be $disassemblables"
+test compile-18.23 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode lambda
+} -match glob -result {wrong # args: should be "* lambda lambdaTerm"}
+test compile-18.24 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode lambda \{
+} -result "can't interpret \"\{\" as a lambda expression"
+test compile-18.25 {disassembler - basics} -body {
+    dict keys [tcl::unsupported::getbytecode lambda {{} {}}]
+} -result $bytecodekeys
+test compile-18.26 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode proc
+} -match glob -result {wrong # args: should be "* proc procName"}
+test compile-18.27 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode proc nosuchproc
+} -result {"nosuchproc" isn't a procedure}
+test compile-18.28 {disassembler - basics} -setup {
+    proc chewonthis {} {}
+} -body {
+    dict keys [tcl::unsupported::getbytecode proc chewonthis]
+} -cleanup {
+    rename chewonthis {}
+} -result $bytecodekeys
+test compile-18.29 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode script
+} -match glob -result {wrong # args: should be "* script script"}
+test compile-18.30 {disassembler - basics} -body {
+    dict keys [tcl::unsupported::getbytecode script {}]
+} -result $bytecodekeys
+test compile-18.31 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode method
+} -match glob -result {wrong # args: should be "* method className methodName"}
+test compile-18.32 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode method nosuchclass foo
+} -result {nosuchclass does not refer to an object}
+test compile-18.33 {disassembler - basics} -returnCodes error -setup {
+    oo::object create justanobject
+} -body {
+    tcl::unsupported::getbytecode method justanobject foo
+} -cleanup {
+    justanobject destroy
+} -result {"justanobject" is not a class}
+test compile-18.34 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode method oo::object nosuchmethod
+} -result {unknown method "nosuchmethod"}
+test compile-18.35 {disassembler - basics} -setup {
+    oo::class create foo {method bar {} {}}
+} -body {
+    dict keys [tcl::unsupported::getbytecode method foo bar]
+} -cleanup {
+    foo destroy
+} -result $bytecodekeys
+test compile-18.36 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode objmethod
+} -match glob -result {wrong # args: should be "* objmethod objectName methodName"}
+test compile-18.37 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode objmethod nosuchobject foo
+} -result {nosuchobject does not refer to an object}
+test compile-18.38 {disassembler - basics} -returnCodes error -body {
+    tcl::unsupported::getbytecode objmethod oo::object nosuchmethod
+} -result {unknown method "nosuchmethod"}
+test compile-18.39 {disassembler - basics} -setup {
+    oo::object create foo
+    oo::objdefine foo {method bar {} {}}
+} -body {
+    dict keys [tcl::unsupported::getbytecode objmethod foo bar]
+} -cleanup {
+    foo destroy
+} -result $bytecodekeys
+
+test compile-19.0 {Bug 3614102: reset stack housekeeping} -body {
+    # This will panic in a --enable-symbols=compile build, unless bug is fixed.
+    apply {{} {list [if 1]}}
+} -returnCodes error -match glob -result *
+
+test compile-20.1 {ensure there are no infinite loops in optimizing} {
+    tcl::unsupported::disassemble script {
+	while 1 {
+	    return -code continue -level 0
+	}
+    }
+    return
+} {}
+test compile-20.2 {ensure there are no infinite loops in optimizing} {
+    tcl::unsupported::disassemble script {
+	while 1 {
+	    while 1 {
+		return -code break -level 0
+	    }
+	}
+    }
+    return
+} {}
+
+test compile-21.1 {stack balance management} {
+    apply {{} {
+	set result {}
+	while 1 {
+	    lappend result a
+	    lappend result [list b [break]]
+	    lappend result c
+	}
+	return $result
+    }}
+} a
+test compile-21.2 {stack balance management} {
+    apply {{} {
+	set result {}
+	while {[incr i] <= 10} {
+	    lappend result $i
+	    lappend result [list b [continue] c]
+	    lappend result c
+	}
+	return $result
+    }}
+} {1 2 3 4 5 6 7 8 9 10}
+test compile-21.3 {stack balance management} {
+    apply {args {
+	set result {}
+	while 1 {
+	    lappend result a
+	    lappend result [concat {*}$args [break]]
+	    lappend result c
+	}
+	return $result
+    }} P Q R S T
+} a
+test compile-21.4 {stack balance management} {
+    apply {args {
+	set result {}
+	while {[incr i] <= 10} {
+	    lappend result $i
+	    lappend result [concat {*}$args [continue] c]
+	    lappend result c
+	}
+	return $result
+    }} P Q R S T
+} {1 2 3 4 5 6 7 8 9 10}
+
 # TODO sometime - check that bytecode from tbcload is *not* disassembled.
 
 # cleanup
diff --git a/tests/coroutine.test b/tests/coroutine.test
index 8272717..205da67 100644
--- a/tests/coroutine.test
+++ b/tests/coroutine.test
@@ -1,4 +1,4 @@
-# Commands covered:  coroutine, yield, [info coroutine]
+# Commands covered:  coroutine, yield, yieldto, [info coroutine]
 #
 # This file contains a collection of tests for experimental commands that are
 # found in ::tcl::unsupported. The tests will migrate to normal test files
@@ -342,6 +342,9 @@ test coroutine-3.6 {info frame, bug #2910094} -setup {
     rename stack {}
     rename a {}
 } -result {}
+test coroutine-3.7 {bug 0b874c344d} {
+    dict get [coroutine X coroutine Y info frame 0] cmd
+} {coroutine X coroutine Y info frame 0}
 
 test coroutine-4.1 {bug #2093188} -setup {
     proc foo {} {
@@ -439,7 +442,7 @@ test coroutine-4.5 {bug #2724403} -constraints {memory} \
 } -result 0
 
 test coroutine-4.6 {compile context, bug #3282869} -setup {
-    unset ::x
+    unset -nocomplain ::x
     proc f x {
 	coroutine D eval {yield X$x;yield Y}
     }
@@ -609,6 +612,135 @@ test coroutine-7.3 {yielding between coroutines} -body {
 } -cleanup {
     catch {rename juggler ""}
 } -result {{{a b c d e} ::j1 {a b c d} ::j2 {a b c} ::j3 {a b} ::j1 a ::j2} {} {} {}}
+test coroutine-7.4 {Bug 8ff0cb9fe1} -setup {
+    proc foo {a b} {catch yield; return 1}
+} -cleanup {
+    rename foo {}
+} -body {
+    coroutine demo lsort -command foo {a b}
+} -result {b a}
+test coroutine-7.5 {return codes} {
+    set result {}
+    foreach code {0 1 2 3 4 5} {
+	lappend result [catch {coroutine demo return -level 0 -code $code}]
+    }
+    set result
+} {0 1 2 3 4 5}
+test coroutine-7.6 {Early yield crashes} {
+    proc foo args {}
+    trace add execution foo enter {catch yield}
+    coroutine demo foo
+    rename foo {}
+} {}
+test coroutine-7.7 {Bug 2486550} -setup {
+    interp hide {} yield
+} -body {
+    coroutine demo interp invokehidden {} yield ok
+} -cleanup {
+    demo
+    interp expose {} yield
+} -result ok
+test coroutine-7.8 {yieldto context nuke: Bug a90d9331bc} -setup {
+    namespace eval cotest {}
+    set ::result ""
+} -body {
+    proc cotest::body {} {
+	lappend ::result a
+	yield OUT
+	lappend ::result b
+	yieldto ::return -level 0 123
+	lappend ::result c
+	return
+    }
+    lappend ::result [coroutine cotest cotest::body]
+    namespace delete cotest
+    namespace eval cotest {}
+    lappend ::result [cotest]
+    cotest
+    return $result
+} -returnCodes error -cleanup {
+    catch {namespace delete ::cotest}
+    catch {rename cotest ""}
+} -result {yieldto called in deleted namespace}
+test coroutine-7.9 {yieldto context nuke: Bug a90d9331bc} -setup {
+    namespace eval cotest {}
+    set ::result ""
+} -body {
+    proc cotest::body {} {
+	set y ::yieldto
+	lappend ::result a
+	yield OUT
+	lappend ::result b
+	$y ::return -level 0 123
+	lappend ::result c
+	return
+    }
+    lappend ::result [coroutine cotest cotest::body]
+    namespace delete cotest
+    namespace eval cotest {}
+    lappend ::result [cotest]
+    cotest
+    return $result
+} -returnCodes error -cleanup {
+    catch {namespace delete ::cotest}
+    catch {rename cotest ""}
+} -result {yieldto called in deleted namespace}
+test coroutine-7.10 {yieldto context nuke: Bug a90d9331bc} -setup {
+    namespace eval cotest {}
+    set ::result ""
+} -body {
+    proc cotest::body {} {
+	lappend ::result a
+	yield OUT
+	lappend ::result b
+	yieldto ::return -level 0 -cotest [namespace delete ::cotest] 123
+	lappend ::result c
+	return
+    }
+    lappend ::result [coroutine cotest cotest::body]
+    lappend ::result [cotest]
+    cotest
+    return $result
+} -returnCodes error -cleanup {
+    catch {namespace delete ::cotest}
+    catch {rename cotest ""}
+} -result {yieldto called in deleted namespace}
+test coroutine-7.11 {yieldto context nuke: Bug a90d9331bc} -setup {
+    namespace eval cotest {}
+    set ::result ""
+} -body {
+    proc cotest::body {} {
+	set y ::yieldto
+	lappend ::result a
+	yield OUT
+	lappend ::result b
+	$y ::return -level 0 -cotest [namespace delete ::cotest] 123
+	lappend ::result c
+	return
+    }
+    lappend ::result [coroutine cotest cotest::body]
+    lappend ::result [cotest]
+    cotest
+    return $result
+} -returnCodes error -cleanup {
+    catch {namespace delete ::cotest}
+    catch {rename cotest ""}
+} -result {yieldto called in deleted namespace}
+test coroutine-7.12 {coro floor above street level #3008307} -body {
+    proc c {} {
+	yield
+    }
+    proc cc {} {
+	coroutine C c
+    }
+    proc boom {} {
+	cc ; # coro created at level 2
+	C  ; # and called at level 1
+    }
+    boom   ; # does not crash: the coro floor is a good insulator
+    list
+} -result {}
+
 
 # cleanup
 unset lambda
diff --git a/tests/dcall.test b/tests/dcall.test
index 3df0ac8..41dd777 100644
--- a/tests/dcall.test
+++ b/tests/dcall.test
@@ -11,10 +11,8 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2
+namespace import ::tcltest::*
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
@@ -41,5 +39,5 @@ test dcall-1.6 {deletion callbacks} testdcall {
 } {}
 
 # cleanup
-::tcltest::cleanupTests
+cleanupTests
 return
diff --git a/tests/dict.test b/tests/dict.test
index 77bacf6..d5406d0 100644
--- a/tests/dict.test
+++ b/tests/dict.test
@@ -78,6 +78,24 @@ test dict-2.7 {dict create command - #-quoting in string rep} {
 test dict-2.8 {dict create command - #-quoting in string rep} -body {
     dict create #a x #b x
 } -match glob -result {{#?} x #? x}
+test dict-2.9 {dict create command: compilation} {
+    apply {{} {dict create [format a] b}}
+} {a b}
+test dict-2.10 {dict create command: compilation} {
+    apply {{} {dict create [format a] b c d}}
+} {a b c d}
+test dict-2.11 {dict create command: compilation} {
+    apply {{} {dict create [format a] b c d a x}}
+} {a x c d}
+test dict-2.12 {dict create command: non-compilation} {
+    dict create [format a] b
+} {a b}
+test dict-2.13 {dict create command: non-compilation} {
+    dict create [format a] b c d
+} {a b c d}
+test dict-2.14 {dict create command: non-compilation} {
+    dict create [format a] b c d a x
+} {a x c d}
 
 test dict-3.1 {dict get command} {dict get {a b} a} b
 test dict-3.2 {dict get command} {dict get {a b c d} a} b
@@ -149,6 +167,51 @@ test dict-4.8 {dict replace command} -returnCodes error -body {
 } -result {missing value to go with key}
 test dict-4.9 {dict replace command} {dict replace [list a a] a b} {a b}
 test dict-4.10 {dict replace command} {dict replace [list a a] a b a c} {a c}
+test dict-4.11 {dict replace command: canonicality is forced} {
+    dict replace { a b  c d }
+} {a b c d}
+test dict-4.12 {dict replace command: canonicality is forced} {
+    dict replace {a b c d a e}
+} {a e c d}
+test dict-4.13 {dict replace command: type check is mandatory} -body {
+    dict replace { a b c d e }
+} -returnCodes error -result {missing value to go with key}
+test dict-4.13a {dict replace command: type check is mandatory} {
+    catch {dict replace { a b c d e }} -> opt
+    dict get $opt -errorcode
+} {TCL VALUE DICTIONARY}
+test dict-4.14 {dict replace command: type check is mandatory} -body {
+    dict replace { a b {}c d }
+} -returnCodes error -result {dict element in braces followed by "c" instead of space}
+test dict-4.14a {dict replace command: type check is mandatory} {
+    catch {dict replace { a b {}c d }} -> opt
+    dict get $opt -errorcode
+} {TCL VALUE DICTIONARY JUNK}
+test dict-4.15 {dict replace command: type check is mandatory} -body {
+    dict replace { a b ""c d }
+} -returnCodes error -result {dict element in quotes followed by "c" instead of space}
+test dict-4.15a {dict replace command: type check is mandatory} {
+    catch {dict replace { a b ""c d }} -> opt
+    dict get $opt -errorcode
+} {TCL VALUE DICTIONARY JUNK}
+test dict-4.16 {dict replace command: type check is mandatory} -body {
+    dict replace " a b \"c d "
+} -returnCodes error -result {unmatched open quote in dict}
+test dict-4.16a {dict replace command: type check is mandatory} {
+    catch {dict replace " a b \"c d "} -> opt
+    dict get $opt -errorcode
+} {TCL VALUE DICTIONARY QUOTE}
+test dict-4.17 {dict replace command: type check is mandatory} -body {
+    dict replace " a b \{c d "
+} -returnCodes error -result {unmatched open brace in dict}
+test dict-4.17a {dict replace command: type check is mandatory} {
+    catch {dict replace " a b \{c d "} -> opt
+    dict get $opt -errorcode
+} {TCL VALUE DICTIONARY BRACE}
+test dict-4.18 {dict replace command: canonicality forcing doesn't leak} {
+    set example { a b  c d }
+    list $example [dict replace $example]
+} {{ a b  c d } {a b c d}}
 
 test dict-5.1 {dict remove command} {dict remove {a b c d} a} {c d}
 test dict-5.2 {dict remove command} {dict remove {a b c d} c} {a b}
@@ -161,6 +224,25 @@ test dict-5.6 {dict remove command} {dict remove {a b} c} {a b}
 test dict-5.7 {dict remove command} -returnCodes error -body {
     dict remove
 } -result {wrong # args: should be "dict remove dictionary ?key ...?"}
+test dict-5.8 {dict remove command: canonicality is forced} {
+    dict remove { a b  c d }
+} {a b c d}
+test dict-5.9 {dict remove command: canonicality is forced} {
+    dict remove {a b c d a e}
+} {a e c d}
+test dict-5.10 {dict remove command: canonicality forced by update} {
+    dict remove { a b c d } c
+} {a b}
+test dict-5.11 {dict remove command: type check is mandatory} -body {
+    dict remove { a b c d e }
+} -returnCodes error -result {missing value to go with key}
+test dict-5.12 {dict remove command: type check is mandatory} -body {
+    dict remove { a b {}c d }
+} -returnCodes error -result {dict element in braces followed by "c" instead of space}
+test dict-5.13 {dict remove command: canonicality forcing doesn't leak} {
+    set example { a b  c d }
+    list $example [dict remove $example]
+} {{ a b  c d } {a b c d}}
 
 test dict-6.1 {dict keys command} {dict keys {a b}} a
 test dict-6.2 {dict keys command} {dict keys {c d}} c
@@ -327,13 +409,13 @@ test dict-11.13 {dict incr command} -returnCodes error -body {
     dict incr dictv a a a
 } -cleanup {
     unset dictv
-} -result {wrong # args: should be "dict incr varName key ?increment?"}
+} -result {wrong # args: should be "dict incr dictVarName key ?increment?"}
 test dict-11.14 {dict incr command} -returnCodes error -body {
     set dictv a
     dict incr dictv
 } -cleanup {
     unset dictv
-} -result {wrong # args: should be "dict incr varName key ?increment?"}
+} -result {wrong # args: should be "dict incr dictVarName key ?increment?"}
 test dict-11.15 {dict incr command: write failure} -setup {
     unset -nocomplain dictVar
 } -body {
@@ -404,10 +486,10 @@ test dict-12.6 {dict lappend command} -returnCodes error -body {
 } -result {missing value to go with key}
 test dict-12.7 {dict lappend command} -returnCodes error -body {
     dict lappend
-} -result {wrong # args: should be "dict lappend varName key ?value ...?"}
+} -result {wrong # args: should be "dict lappend dictVarName key ?value ...?"}
 test dict-12.8 {dict lappend command} -returnCodes error -body {
     dict lappend dictv
-} -result {wrong # args: should be "dict lappend varName key ?value ...?"}
+} -result {wrong # args: should be "dict lappend dictVarName key ?value ...?"}
 test dict-12.9 {dict lappend command} -returnCodes error -body {
     set dictv [dict create a "\{"]
     dict lappend dictv a a
@@ -471,10 +553,10 @@ test dict-13.6 {dict append command} -returnCodes error -body {
 } -result {missing value to go with key}
 test dict-13.7 {dict append command} -returnCodes error -body {
     dict append
-} -result {wrong # args: should be "dict append varName key ?value ...?"}
+} -result {wrong # args: should be "dict append dictVarName key ?value ...?"}
 test dict-13.8 {dict append command} -returnCodes error -body {
     dict append dictv
-} -result {wrong # args: should be "dict append varName key ?value ...?"}
+} -result {wrong # args: should be "dict append dictVarName key ?value ...?"}
 test dict-13.9 {dict append command: write failure} -setup {
     unset -nocomplain dictVar
 } -body {
@@ -492,16 +574,16 @@ test dict-13.11 {compiled dict append: invalidate string rep - Bug 3079830} {
 
 test dict-14.1 {dict for command: syntax} -returnCodes error -body {
     dict for
-} -result {wrong # args: should be "dict for {keyVar valueVar} dictionary script"}
+} -result {wrong # args: should be "dict for {keyVarName valueVarName} dictionary script"}
 test dict-14.2 {dict for command: syntax} -returnCodes error -body {
     dict for x
-} -result {wrong # args: should be "dict for {keyVar valueVar} dictionary script"}
+} -result {wrong # args: should be "dict for {keyVarName valueVarName} dictionary script"}
 test dict-14.3 {dict for command: syntax} -returnCodes error -body {
     dict for x x
-} -result {wrong # args: should be "dict for {keyVar valueVar} dictionary script"}
+} -result {wrong # args: should be "dict for {keyVarName valueVarName} dictionary script"}
 test dict-14.4 {dict for command: syntax} -returnCodes error -body {
     dict for x x x x
-} -result {wrong # args: should be "dict for {keyVar valueVar} dictionary script"}
+} -result {wrong # args: should be "dict for {keyVarName valueVarName} dictionary script"}
 test dict-14.5 {dict for command: syntax} -returnCodes error -body {
     dict for x x x
 } -result {must have exactly two variable names}
@@ -650,6 +732,24 @@ test dict-14.20 {dict for stack space compilation: bug 1903325} {
 	concat "c=$y,$args"
     }} {} 1 2 3
 } {c=1,2 3}
+test dict-14.21 {compiled dict for and break} {
+    apply {{} {
+	dict for {a b} {c d e f} {
+	    lappend result $a,$b
+	    break
+	}
+	return $result
+    }}
+} c,d
+test dict-14.22 {dict for and exception range depths: Bug 3614382} {
+    apply {{} {
+	dict for {a b} {c d} {
+	    dict for {e f} {g h} {
+		return 5
+	    }
+	}
+    }}
+} 5
 # There's probably a lot more tests to add here. Really ought to use a
 # coverage tool for this job...
 
@@ -713,13 +813,13 @@ test dict-15.9 {dict set command: write failure} -setup {
 } -result {can't set "dictVar": variable is array}
 test dict-15.10 {dict set command: syntax} -returnCodes error -body {
     dict set
-} -result {wrong # args: should be "dict set varName key ?key ...? value"}
+} -result {wrong # args: should be "dict set dictVarName key ?key ...? value"}
 test dict-15.11 {dict set command: syntax} -returnCodes error -body {
     dict set a
-} -result {wrong # args: should be "dict set varName key ?key ...? value"}
+} -result {wrong # args: should be "dict set dictVarName key ?key ...? value"}
 test dict-15.12 {dict set command: syntax} -returnCodes error -body {
     dict set a a
-} -result {wrong # args: should be "dict set varName key ?key ...? value"}
+} -result {wrong # args: should be "dict set dictVarName key ?key ...? value"}
 test dict-15.13 {dict set command} -returnCodes error -body {
     set dictVar a
     dict set dictVar b c
@@ -772,7 +872,7 @@ test dict-16.7 {dict unset command} -setup {
 } -result {0 {} 1}
 test dict-16.8 {dict unset command} -returnCodes error -body {
     dict unset dictVar
-} -result {wrong # args: should be "dict unset varName key ?key ...?"}
+} -result {wrong # args: should be "dict unset dictVarName key ?key ...?"}
 test dict-16.9 {dict unset command: write failure} -setup {
     unset -nocomplain dictVar
 } -body {
@@ -781,6 +881,55 @@ test dict-16.9 {dict unset command: write failure} -setup {
 } -returnCodes error -cleanup {
     unset dictVar
 } -result {can't set "dictVar": variable is array}
+# Now test with an LVT present (i.e., the bytecoded version).
+test dict-16.10 {dict unset command} -body {
+    apply {{} {
+	set dictVar {a b c d}
+	dict unset dictVar a
+    }}
+} -result {c d}
+test dict-16.11 {dict unset command} -body {
+    apply {{} {
+	set dictVar {a b c d}
+	dict unset dictVar c
+    }}
+} -result {a b}
+test dict-16.12 {dict unset command} -body {
+    apply {{} {
+	set dictVar {a b}
+	dict unset dictVar c
+    }}
+} -result {a b}
+test dict-16.13 {dict unset command} -body {
+    apply {{} {
+	set dictVar {a {b c d e}}
+	dict unset dictVar a b
+    }}
+} -result {a {d e}}
+test dict-16.14 {dict unset command} -returnCodes error -body {
+    apply {{} {
+	set dictVar a
+	dict unset dictVar a
+    }}
+} -result {missing value to go with key}
+test dict-16.15 {dict unset command} -returnCodes error -body {
+    apply {{} {
+	set dictVar {a b}
+	dict unset dictVar c d
+    }}
+} -result {key "c" not known in dictionary}
+test dict-16.16 {dict unset command} -body {
+    apply {{} {list [info exists dictVar] [dict unset dictVar a] [info exists dictVar]}}
+} -result {0 {} 1}
+test dict-16.17 {dict unset command} -returnCodes error -body {
+    apply {{} {dict unset dictVar}}
+} -result {wrong # args: should be "dict unset dictVarName key ?key ...?"}
+test dict-16.18 {dict unset command: write failure} -body {
+    apply {{} {
+	set dictVar(block) {}
+	dict unset dictVar a
+    }}
+} -returnCodes error -result {can't set "dictVar": variable is array}
 
 test dict-17.1 {dict filter command: key} -body {
     set dictVar {a1 a a2 b b1 c b2 d foo bar bar foo}
@@ -903,7 +1052,7 @@ test dict-17.17 {dict filter command: script} -body {
 } -result b
 test dict-17.18 {dict filter command: script} -returnCodes error -body {
     dict filter {a b} script {k k}
-} -result {wrong # args: should be "dict filter dictionary script {keyVar valueVar} filterScript"}
+} -result {wrong # args: should be "dict filter dictionary script {keyVarName valueVarName} filterScript"}
 test dict-17.19 {dict filter command: script} -returnCodes error -body {
     dict filter {a b} script k {continue}
 } -result {must have exactly two variable names}
@@ -1111,19 +1260,64 @@ test dict-20.9 {dict merge command} {
 test dict-20.10 {dict merge command} {
     dict merge {a b c d e f} {a x 1 2 3 4} {a - 1 -}
 } {a - c d e f 1 - 3 4}
+test dict-20.11 {dict merge command} {
+    apply {{} {dict merge}}
+} {}
+test dict-20.12 {dict merge command} {
+    apply {{} {dict merge {a b c d e f}}}
+} {a b c d e f}
+test dict-20.13 {dict merge command} -body {
+    apply {{} {dict merge {a b c d e}}}
+} -result {missing value to go with key} -returnCodes error
+test dict-20.14 {dict merge command} {
+    apply {{} {dict merge {a b c d} {e f g h}}}
+} {a b c d e f g h}
+test dict-20.15 {dict merge command} -body {
+    apply {{} {dict merge {a b c d e} {e f g h}}}
+} -result {missing value to go with key} -returnCodes error
+test dict-20.16 {dict merge command} -body {
+    apply {{} {dict merge {a b c d} {e f g h i}}}
+} -result {missing value to go with key} -returnCodes error
+test dict-20.17 {dict merge command} {
+    apply {{} {dict merge {a b c d e f} {e x g h}}}
+} {a b c d e x g h}
+test dict-20.18 {dict merge command} {
+    apply {{} {dict merge {a b c d} {a x c y}}}
+} {a x c y}
+test dict-20.19 {dict merge command} {
+    apply {{} {dict merge {a b c d} {c y a x}}}
+} {a x c y}
+test dict-20.20 {dict merge command} {
+    apply {{} {dict merge {a b c d e f} {a x 1 2 3 4} {a - 1 -}}}
+} {a - c d e f 1 - 3 4}
+test dict-20.21 {dict merge command: canonicality not forced} {
+    dict merge { a b c d }
+} { a b c d }
+test dict-20.22 {dict merge command: canonicality not forced} {
+    dict merge { a b c d } {}
+} { a b c d }
+test dict-20.23 {dict merge command: canonicality forced by update} {
+    dict merge { a b c d } {a b}
+} {a b c d}
+test dict-20.24 {dict merge command: type check is mandatory} -body {
+    dict merge { a b c d e }
+} -returnCodes error -result {missing value to go with key}
+test dict-20.25 {dict merge command: type check is mandatory} -body {
+    dict merge { a b {}c d }
+} -returnCodes error -result {dict element in braces followed by "c" instead of space}
 
 test dict-21.1 {dict update command} -returnCodes 1 -body {
     dict update
-} -result {wrong # args: should be "dict update varName key varName ?key varName ...? script"}
+} -result {wrong # args: should be "dict update dictVarName key varName ?key varName ...? script"}
 test dict-21.2 {dict update command} -returnCodes 1 -body {
     dict update v
-} -result {wrong # args: should be "dict update varName key varName ?key varName ...? script"}
+} -result {wrong # args: should be "dict update dictVarName key varName ?key varName ...? script"}
 test dict-21.3 {dict update command} -returnCodes 1 -body {
     dict update v k
-} -result {wrong # args: should be "dict update varName key varName ?key varName ...? script"}
+} -result {wrong # args: should be "dict update dictVarName key varName ?key varName ...? script"}
 test dict-21.4 {dict update command} -returnCodes 1 -body {
     dict update v k v
-} -result {wrong # args: should be "dict update varName key varName ?key varName ...? script"}
+} -result {wrong # args: should be "dict update dictVarName key varName ?key varName ...? script"}
 test dict-21.5 {dict update command} -body {
     set a {b c}
     set result {}
@@ -1261,10 +1455,10 @@ test dict-21.17 {dict update command: no recursive structures [Bug 1786481]} {
 
 test dict-22.1 {dict with command} -body {
     dict with
-} -returnCodes 1 -result {wrong # args: should be "dict with dictVar ?key ...? script"}
+} -returnCodes 1 -result {wrong # args: should be "dict with dictVarName ?key ...? script"}
 test dict-22.2 {dict with command} -body {
     dict with v
-} -returnCodes 1 -result {wrong # args: should be "dict with dictVar ?key ...? script"}
+} -returnCodes 1 -result {wrong # args: should be "dict with dictVarName ?key ...? script"}
 test dict-22.3 {dict with command} -body {
     unset -nocomplain v
     dict with v {error "in body"}
@@ -1489,7 +1683,7 @@ test dict-23.1 {dict compilation crash: Bug 3487626} {
 	}
     }} [linenumber]}}
 } 5
-test dict-23.2 {dict compilation crash: Bug 3487626} knownBug {
+test dict-23.2 {dict compilation crash: Bug 3487626} {
     # Something isn't quite right in line number and continuation line
     # tracking; at time of writing, this test produces 7, not 5, which
     # indicates that the extra newlines in the non-script argument are
@@ -1521,6 +1715,339 @@ j
     }} [linenumber]}}
 } 5
 rename linenumber {}
+
+test dict-24.1 {dict map command: syntax} -returnCodes error -body {
+    dict map
+} -result {wrong # args: should be "dict map {keyVarName valueVarName} dictionary script"}
+test dict-24.2 {dict map command: syntax} -returnCodes error -body {
+    dict map x
+} -result {wrong # args: should be "dict map {keyVarName valueVarName} dictionary script"}
+test dict-24.3 {dict map command: syntax} -returnCodes error -body {
+    dict map x x
+} -result {wrong # args: should be "dict map {keyVarName valueVarName} dictionary script"}
+test dict-24.4 {dict map command: syntax} -returnCodes error -body {
+    dict map x x x x
+} -result {wrong # args: should be "dict map {keyVarName valueVarName} dictionary script"}
+test dict-24.5 {dict map command: syntax} -returnCodes error -body {
+    dict map x x x
+} -result {must have exactly two variable names}
+test dict-24.6 {dict map command: syntax} -returnCodes error -body {
+    dict map {x x x} x x
+} -result {must have exactly two variable names}
+test dict-24.7 {dict map command: syntax} -returnCodes error -body {
+    dict map "\{x" x x
+} -result {unmatched open brace in list}
+test dict-24.8 {dict map command} -setup {
+    set values {}
+    set keys {}
+} -body {
+    # This test confirms that [dict keys], [dict values] and [dict map]
+    # all traverse a dictionary in the same order.
+    set dictv {a A b B c C}
+    dict map {k v} $dictv {
+	lappend keys $k
+	lappend values $v
+    }
+    set result [expr {
+	$keys eq [dict keys $dictv] && $values eq [dict values $dictv]
+    }]
+    expr {$result ? "YES" : [list "NO" $dictv $keys $values]}
+} -cleanup {
+    unset result keys values k v dictv
+} -result YES
+test dict-24.9 {dict map command} {
+    dict map {k v} {} {
+	error "unexpected execution of 'dict map' body"
+    }
+} {}
+test dict-24.10 {dict map command: script results} -body {
+    set times 0
+    dict map {k v} {a a b b} {
+	incr times
+	continue
+	error "shouldn't get here"
+    }
+    return $times
+} -cleanup {
+    unset times k v
+} -result 2
+test dict-24.11 {dict map command: script results} -body {
+    set times 0
+    dict map {k v} {a a b b} {
+	incr times
+	break
+	error "shouldn't get here"
+    }
+    return $times
+} -cleanup {
+    unset times k v
+} -result 1
+test dict-24.12 {dict map command: script results} -body {
+    set times 0
+    list [catch {
+	dict map {k v} {a a b b} {
+	    incr times
+	    error test
+	}
+    } msg] $msg $times $::errorInfo
+} -cleanup {
+    unset times k v msg
+} -result {1 test 1 {test
+    while executing
+"error test"
+    ("dict map" body line 3)
+    invoked from within
+"dict map {k v} {a a b b} {
+	    incr times
+	    error test
+	}"}}
+test dict-24.13 {dict map command: script results} {
+    apply {{} {
+	dict map {k v} {a b} {
+	    return ok,$k,$v
+	    error "skipped return completely"
+	}
+	error "return didn't go far enough"
+    }}
+} ok,a,b
+test dict-24.14 {dict map command: handle representation loss} -setup {
+    set keys {}
+    set values {}
+} -body {
+    set dictVar {a b c d e f g h}
+    list [dict size [dict map {k v} $dictVar {
+	if {[llength $dictVar]} {
+	    lappend keys $k
+	    lappend values $v
+	    return -level 0 $k
+	}
+    }]] [lsort $keys] [lsort $values]
+} -cleanup {
+    unset dictVar keys values k v
+} -result {4 {a c e g} {b d f h}}
+test dict-24.14a {dict map command: handle representation loss} -body {
+    apply {{} {
+	set dictVar {a b c d e f g h}
+	list [dict size [dict map {k v} $dictVar {
+	    if {[llength $dictVar]} {
+		lappend keys $k
+		lappend values $v
+		return -level 0 $k
+	    }
+	}]] [lsort $keys] [lsort $values]
+    }}
+} -result {4 {a c e g} {b d f h}}
+test dict-24.15 {dict map command: keys are unique and iterated over once only} -setup {
+    unset -nocomplain accum
+    array set accum {}
+} -body {
+    set dictVar {a1 a a2 b b1 c b2 d foo bar bar foo}
+    dict map {k v} $dictVar {
+	append accum($k) $v,
+    }
+    set result [lsort [array names accum]]
+    lappend result :
+    foreach k $result {
+	catch {lappend result $accum($k)}
+    }
+    return $result
+} -cleanup {
+    unset dictVar k v result accum
+} -result {a1 a2 b1 b2 bar foo : a, b, c, d, foo, bar,}
+test dict-24.16 {dict map command in compilation context} {
+    apply {{} {
+	set res {x x x x x x}
+	dict map {k v} {a 0 b 1 c 2 d 3 e 4 f 5} {
+	    lset res $v $k
+	    continue
+	}
+	return $res
+    }}
+} {a b c d e f}
+test dict-24.17 {dict map command in compilation context} {
+    # Bug 1379349 (dict for)
+    apply {{} {
+	set d [dict create a 1]		;# Dict must be unshared!
+	dict map {k v} $d {
+	    dict set d $k 0		;# Any modification will do
+	}
+	return $d
+    }}
+} {a 0}
+test dict-24.17a {dict map command in compilation context} {
+    # Bug 1379349 (dict for)
+    apply {{} {
+	set d [dict create a 1]		;# Dict must be unshared!
+	dict map {k v} $d {
+	    dict set d $k 0		;# Any modification will do
+	}
+    }}
+} {a {a 0}}
+test dict-24.18 {dict map command in compilation context} {
+    # Bug 1382528 (dict for)
+    apply {{} {
+	dict map {k v} {} {}		;# Note empty dict
+	catch { error foo }		;# Note compiled [catch]
+    }}
+} 1
+test dict-24.19 {dict map and invalid dicts: 'dict for' bug 1531184} -body {
+    di[list]ct map {k v} x {}
+} -returnCodes 1 -result {missing value to go with key}
+test dict-24.20 {dict map stack space compilation: 'dict for' bug 1903325} {
+    apply {{x y args} {
+	dict map {a b} $x {}
+	concat "c=$y,$args"
+    }} {} 1 2 3
+} {c=1,2 3}
+proc linenumber {} {
+    dict get [info frame -1] line
+}
+test dict-24.20.1 {dict compilation crash: 'dict for' bug 3487626} {
+    apply {{} {apply {n {
+	set e {}
+	set k {}
+	dict map {a b} {c {d {e {f g}}}} {
+	    ::tcl::dict::map {h i} $b {
+		dict update i e j {
+		    ::tcl::dict::update j f k {
+			return [expr {$n - [linenumber]}]
+		    }
+		}
+	    }
+	}
+    }} [linenumber]}}
+} 5
+test dict-24.21 {dict compilation crash: 'dict for' bug 3487626} {
+    apply {{} {apply {n {
+	set e {}
+	set k {}
+	dict map {a {
+b
+}} {c {d {e {f g}}}} {
+	    ::tcl::dict::map {h {
+i
+}} ${
+b
+} {
+		dict update {
+i
+} e {
+j
+} {
+		    ::tcl::dict::update {
+j
+} f k {
+			return [expr {$n - [linenumber]}]
+		    }
+		}
+	    }
+	}
+    }} [linenumber]}}
+} 5
+test dict-23.3 {CompileWord OBOE} {
+    # segfault when buggy
+    apply {{} {tcl::dict::lappend foo bar \
+	[format baz]}}
+} {bar baz}
+test dict-23.4 {CompileWord OBOE} {
+    apply {n {
+	dict set foo {*}{
+	} [return [incr n -[linenumber]]] val
+    }} [linenumber]
+} 1
+test dict-23.5 {CompileWord OBOE} {
+    # segfault when buggy
+    apply {{} {tcl::dict::incr foo \
+	[format bar]}}
+} {bar 1}
+test dict-23.6 {CompileWord OBOE} {
+    apply {n {
+	dict get {a b} {*}{
+	} [return [incr n -[linenumber]]]
+    }} [linenumber]
+} 1
+test dict-23.7 {CompileWord OBOE} {
+    apply {n {
+	dict for {a b} [return [incr n -[linenumber]]] {*}{
+	} {}
+    }} [linenumber]
+} 2
+test dict-23.8 {CompileWord OBOE} {
+    apply {n {
+	dict update foo {*}{
+	} [return [incr n -[linenumber]]] x {}
+    }} [linenumber]
+} 1
+test dict-23.9 {CompileWord OBOE} {
+    apply {n {
+	dict exists {} {*}{
+	} [return [incr n -[linenumber]]]
+    }} [linenumber]
+} 1
+test dict-23.10 {CompileWord OBOE} {
+    apply {n {
+	dict with foo {*}{
+	} [return [incr n -[linenumber]]] {}
+    }} [linenumber]
+} 1
+test dict-23.11 {CompileWord OBOE} {
+    apply {n {
+	dict with ::foo {*}{
+	} [return [incr n -[linenumber]]] {}
+    }} [linenumber]
+} 1
+test dict-23.12 {CompileWord OBOE} {
+    apply {n {
+	dict with {*}{
+	} [return [incr n -[linenumber]]] {}
+    }} [linenumber]
+} 1
+test dict-23.13 {CompileWord OBOE} {
+    apply {n {
+	dict with {*}{
+	} [return [incr n -[linenumber]]] {bar}
+    }} [linenumber]
+} 1
+test dict-23.14 {CompileWord OBOE} {
+    apply {n {
+	dict with foo {*}{
+	} [return [incr n -[linenumber]]] {bar}
+    }} [linenumber]
+} 1
+
+rename linenumber {}
+test dict-24.22 {dict map results (non-compiled)} {
+    dict map {k v} [dict map {k v} {a 1 b 2 c 3 d 4} { list $v $k }] {
+	return -level 0 "$k,$v"
+    }
+} {a {a,1 a} b {b,2 b} c {c,3 c} d {d,4 d}}
+test dict-24.23 {dict map results (compiled)} {
+    apply {{} {
+	dict map {k v} [dict map {k v} {a 1 b 2 c 3 d 4} { list $v $k }] {
+	    return -level 0 "$k,$v"
+	}
+    }}
+} {a {a,1 a} b {b,2 b} c {c,3 c} d {d,4 d}}
+test dict-24.23a {dict map results (compiled)} {
+    apply {{list} {
+	dict map {k v} [dict map {k v} $list { list $v $k }] {
+	    return -level 0 "$k,$v"
+	}
+    }} {a 1 b 2 c 3 d 4}
+} {a {a,1 a} b {b,2 b} c {c,3 c} d {d,4 d}}
+test dict-24.24 {dict map with huge dict (non-compiled)} {
+    tcl::mathop::+ {*}[dict map {k v} [lsearch -all [lrepeat 100000 x] x] {
+	expr { $k * $v }
+    }]
+} 166666666600000
+test dict-24.25 {dict map with huge dict (compiled)} {
+    apply {{n} {
+	tcl::mathop::+ {*}[dict map {k v} [lsearch -all [lrepeat $n y] y] {
+	    expr { $k * $v }
+	}]
+    }} 100000
+} 166666666600000
+
 
 # cleanup
 ::tcltest::cleanupTests
diff --git a/tests/env.test b/tests/env.test
index 9010f52..83d99e0 100644
--- a/tests/env.test
+++ b/tests/env.test
@@ -70,7 +70,7 @@ set printenvScript [makeFile {
     }
     proc mangle s {
 	regsub -all {\[|\\|\]} $s {\\&} s
-	regsub -all {[\u0000-\u001f\u007f-\uffff]} $s {[manglechar &]} s
+	regsub -all "\[\u0000-\u001f\u007f-\uffff\]" $s {[manglechar &]} s
 	return [subst -novariables $s]
     }
     proc manglechar c {
@@ -89,7 +89,7 @@ set printenvScript [makeFile {
 	SHLIB_PATH SYSTEMDRIVE SYSTEMROOT DYLD_LIBRARY_PATH DYLD_FRAMEWORK_PATH
 	DYLD_NEW_LOCAL_SHARED_REGIONS DYLD_NO_FIX_PREBINDING
 	__CF_USER_TEXT_ENCODING SECURITYSESSIONID LANG WINDIR TERM
-	CommonProgramFiles ProgramFiles
+	CommonProgramFiles ProgramFiles CommonProgramW6432 ProgramW6432
     } {
 	lrem names $name
     }
@@ -121,7 +121,7 @@ foreach name [array names env] {
 	SYSTEMDRIVE SYSTEMROOT DYLD_LIBRARY_PATH DYLD_FRAMEWORK_PATH
 	DYLD_NEW_LOCAL_SHARED_REGIONS DYLD_NO_FIX_PREBINDING
 	SECURITYSESSIONID LANG WINDIR TERM
-	CommonProgramFiles ProgramFiles
+	CONNOMPROGRAMFILES PROGRAMFILES COMMONPROGRAMW6432 PROGRAMW6432
     }} {
 	unset env($name)
     }
@@ -218,8 +218,8 @@ test env-4.5 {unsetting international environment variables} -setup {
     unset env(\ua7)
     getenv
 } -constraints {exec} -cleanup {
-    encoding system $sysenc
     unset env(\ub6)
+    encoding system $sysenc
 } -result {\u00b6=\u00a7}
 
 test env-5.0 {corner cases - set a value, it should exist} -body {
@@ -291,6 +291,29 @@ test env-6.1 {corner cases - add lots of env variables} {} {
     expr {[array size env] - $size}
 } 100
 
+test env-7.1 {[219226]: whole env array should not be unset by read} {
+    set n [array size env]
+    set s [array startsearch env]
+    while {[array anymore env $s]} {
+	array nextelement env $s
+	incr n -1
+    }
+    array donesearch env $s
+    return $n
+} 0
+test env-7.2 {[219226]: links to env elements should not be removed by read} {
+    apply {{} {
+	set ::env(test7_2) ok
+	upvar env(test7_2) elem
+	set ::env(PATH)
+	try {
+	    return $elem
+	} finally {
+	    unset ::env(test7_2)
+	}
+    }}
+} ok
+
 # Restore the environment variables at the end of the test.
 
 foreach name [array names env] {
diff --git a/tests/error.test b/tests/error.test
index 97bcc0a..af07ed7 100644
--- a/tests/error.test
+++ b/tests/error.test
@@ -17,6 +17,9 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
 }
 
 testConstraint memory [llength [info commands memory]]
+customMatch pairwise {apply {{a b} {
+    string equal [lindex $b 0] [lindex $b 1]
+}}}
 namespace eval ::tcl::test::error {
 if {[testConstraint memory]} {
     proc getbytes {} {
@@ -179,6 +182,16 @@ test error-4.7 {errorstack via options dict } -body {
     catch {f 12} m d
     dict get $d -errorstack
 } -match glob -result {INNER * CALL {g 1212} CALL {f 12} UP 1}
+test error-4.8 {errorstack from exec traces} -body {
+    proc foo args {}
+    proc goo {} foo
+    trace add execution foo enter {error bar;#}
+    catch goo m d
+    dict get $d -errorstack
+} -cleanup {
+    rename goo {}; rename foo {}
+    unset -nocomplain m d
+} -result {INNER {error bar} CALL goo UP 1}
 
 # Errors in error command itself
 
@@ -314,6 +327,12 @@ test error-8.8 {throw syntax checks} -returnCodes error -body {
 test error-8.9 {throw syntax checks} -returnCodes error -body {
     throw {} foo
 } -result {type must be non-empty list}
+test error-8.10 {Bug 33b7abb8a2: throw stack usage} -returnCodes error -body {
+    apply {code {throw $code foo}} {}
+} -result {type must be non-empty list}
+test error-8.11 {Bug 7174354ecb: throw error message} -returnCodes error  -body {
+    throw {not {}a list} x[]y
+} -result {list element in braces followed by "a" instead of space}
 
 # simple try tests: body completes with code ok
 
@@ -601,21 +620,21 @@ test error-16.7 {try with variable assignment and propagation #2} {
     }
     list $em [dict get $opts -errorcode]
 } {bar FOO}
-test error-16.8 {exception chaining (try=ok, handler=error)} {
+test error-16.8 {exception chaining (try=ok, handler=error)} -body {
     #FIXME is the intent of this test correct?
     catch {
 	try { list a b c } on ok {em opts} { throw BAR baz }
     } tryem tryopts
-    string equal $opts [dict get $tryopts -during]
-} {1}
-test error-16.9 {exception chaining (try=error, handler=error)} {
+    list $opts [dict get $tryopts -during]
+} -match pairwise -result equal
+test error-16.9 {exception chaining (try=error, handler=error)} -body {
     # The exception off the handler should chain to the exception off the
     # try-body (using the -during option)
     catch {
 	try { throw FOO bar } trap {} {em opts} { throw BAR baz }
     } tryem tryopts
-    string equal $opts [dict get $tryopts -during]
-} {1}
+    list $opts [dict get $tryopts -during]
+} -match pairwise -result equal
 test error-16.10 {no exception chaining when handler is successful} {
     catch {
 	try { throw FOO bar } trap {} {em opts} { list d e f }
@@ -628,6 +647,131 @@ test error-16.11 {no exception chaining when handler is a non-error exception} {
     } tryem tryopts
     dict exists $tryopts -during
 } {0}
+test error-16.12 {compiled try with successfully executed handler} {
+    apply {{} {
+	try { throw FOO bar } trap FOO {} { list a b c }
+    }}
+} {a b c}
+test error-16.13 {compiled try with exception (error) in handler} -body {
+    apply {{} {
+	try { throw FOO bar } trap FOO {} { throw BAR foo }
+    }}
+} -returnCodes error -result {foo}
+test error-16.14 {compiled try with exception (return) in handler} -body {
+    apply {{} {
+	list [catch {
+	    try { throw FOO bar } trap FOO {} { return BAR }
+	} msg] $msg
+    }}
+} -result {2 BAR}
+test error-16.15 {compiled try with exception (break) in handler} {
+    apply {{} {
+	for { set i 5 } { $i < 10 } { incr i } {
+	    try { throw FOO bar } trap FOO {} { break }
+	}
+	return $i
+    }}
+} {5}
+test error-16.16 {compiled try with exception (continue) in handler} {
+    apply {{} {
+	for { set i 5 } { $i < 10 } { incr i } {
+	    try { throw FOO bar } trap FOO {} { continue }
+	    incr i 20
+	}
+	return $i
+    }}
+} {10}
+test error-16.17 {compiled try with variable assignment and propagation #1} {
+    # Ensure that the handler variables preserve the exception off the
+    # try-body, and are not modified by the exception off the handler
+    apply {{} {
+	catch {
+	    try { throw FOO bar } trap FOO {em} { throw BAR baz }
+	}
+	return $em
+    }}
+} {bar}
+test error-16.18 {compiled try with variable assignment and propagation #2} {
+    apply {{} {
+	catch {
+	    try { throw FOO bar } trap FOO {em opts} { throw BAR baz }
+	}
+	list $em [dict get $opts -errorcode]
+    }}
+} {bar FOO}
+test error-16.19 {compiled try exception chaining (try=ok, handler=error)} -body {
+    #FIXME is the intent of this test correct?
+    apply {{} {
+	catch {
+	    try { list a b c } on ok {em opts} { throw BAR baz }
+	} tryem tryopts
+	list $opts [dict get $tryopts -during]
+    }}
+} -match pairwise -result equal
+test error-16.20 {compiled try exception chaining (try=error, handler=error)} -body {
+    # The exception off the handler should chain to the exception off the
+    # try-body (using the -during option)
+    apply {{} {
+	catch {
+	    try { throw FOO bar } trap {} {em opts} { throw BAR baz }
+	} tryem tryopts
+	list $opts [dict get $tryopts -during]
+    }}
+} -match pairwise -result equal
+test error-16.21 {compiled try exception chaining (try=error, finally=error)} {
+    # The exception off the handler should chain to the exception off the
+    # try-body (using the -during option)
+    apply {{} {
+	catch {
+	    try { throw FOO bar } finally { throw BAR baz }
+	} tryem tryopts
+	dict get $tryopts -during -errorcode
+    }}
+} FOO
+test error-16.22 {compiled try: no exception chaining when handler is successful} {
+    apply {{} {
+	catch {
+	    try { throw FOO bar } trap {} {em opts} { list d e f }
+	} tryem tryopts
+	dict exists $tryopts -during
+    }}
+} {0}
+test error-16.23 {compiled try: no exception chaining when handler is a non-error exception} {
+    apply {{} {
+	catch {
+	    try { throw FOO bar } trap {} {em opts} { break }
+	} tryem tryopts
+	dict exists $tryopts -during
+    }}
+} {0}
+test error-16.24 {compiled try exception chaining (try=ok, handler=error, finally=error)} -body {
+    apply {{} {
+	catch {
+	    try {
+		list a b c
+	    } on ok {em opts} {
+		throw BAR baz
+	    } finally {
+		throw DING dong
+	    }
+	} tryem tryopts
+	list $opts [dict get $tryopts -during -during]
+    }}
+} -match pairwise -result equal
+test error-16.25 {compiled try exception chaining (all errors)} -body {
+    apply {{} {
+	catch {
+	    try {
+		throw FOO bar
+	    } on error {em opts} {
+		throw BAR baz
+	    } finally {
+		throw DING dong
+	    }
+	} tryem tryopts
+	list $opts [dict get $tryopts -during -during]
+    }}
+} -match pairwise -result equal
 
 # try tests - finally
 
@@ -709,15 +853,15 @@ test error-18.5 {exception in finally doesn't affect variable assignment} {
     }
     list $em [dict get $opts -errorcode]
 } {bar FOO}
-test error-18.6 {exception chaining in finally (try=ok)} {
+test error-18.6 {exception chaining in finally (try=ok)} -body {
     catch {
 	list a b c
     } em expopts
     catch {
 	try { list a b c } finally { throw BAR foo }
     } em opts
-    string equal $expopts [dict get $opts -during]
-} {1}
+    list $expopts [dict get $opts -during]
+} -match pairwise -result equal
 test error-18.7 {exception chaining in finally (try=error)} {
     catch {
 	try { throw FOO bar } finally { throw BAR baz }
@@ -1040,6 +1184,12 @@ test error-21.8 {memory leaks in try: Bug 2910044} memory {
     }
 } 0
 
+test error-21.9 {Bug cee90e4e88} {
+    # Just don't panic.
+    apply {{} {try {} on ok {} - on return {} {}}}
+} {}
+
+
 # negative case try tests - bad "trap" handler
 # what is the effect if we attempt to trap an errorcode that is not a list?
 # nested try
diff --git a/tests/exec.test b/tests/exec.test
index 64d3517..16a8320 100644
--- a/tests/exec.test
+++ b/tests/exec.test
@@ -157,7 +157,7 @@ test exec-2.6 {redirecting input from immediate source, with UTF} -setup {
     encoding system iso8859-1
     proc quotenonascii s {
 	regsub -all {\[|\\|\]} $s {\\&} s
-	regsub -all {[\u007f-\uffff]} $s \
+	regsub -all "\[\u007f-\uffff\]" $s \
 	    {[apply {c {format {\u%04x} [scan $c %c]}} &]} s
 	return [subst -novariables $s]
     }
@@ -370,7 +370,7 @@ err}
 
 test exec-10.1 {errors in exec invocation} -constraints {exec} -body {
     exec
-} -returnCodes error -result {wrong # args: should be "exec ?-switch ...? arg ?arg ...?"}
+} -returnCodes error -result {wrong # args: should be "exec ?-option ...? arg ?arg ...?"}
 test exec-10.2 {errors in exec invocation} -constraints {exec} -body {
     exec | cat
 } -returnCodes error -result {illegal use of | or |& in command}
@@ -545,10 +545,10 @@ test exec-14.1 {-keepnewline switch} {exec} {
 } "foo\n"
 test exec-14.2 {-keepnewline switch} -constraints {exec} -body {
     exec -keepnewline
-} -returnCodes error -result {wrong # args: should be "exec ?-switch ...? arg ?arg ...?"}
+} -returnCodes error -result {wrong # args: should be "exec ?-option ...? arg ?arg ...?"}
 test exec-14.3 {unknown switch} -constraints {exec} -body {
     exec -gorp
-} -returnCodes error -result {bad switch "-gorp": must be -ignorestderr, -keepnewline, or --}
+} -returnCodes error -result {bad option "-gorp": must be -ignorestderr, -keepnewline, or --}
 test exec-14.4 {-- switch} -constraints {exec} -body {
     exec -- -gorp
 } -returnCodes error -result {couldn't execute "-gorp": no such file or directory}
diff --git a/tests/expr-old.test b/tests/expr-old.test
index 4f3cb2e..06a00ba 100644
--- a/tests/expr-old.test
+++ b/tests/expr-old.test
@@ -13,10 +13,8 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest 2.1
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2.1
+namespace import ::tcltest::*
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
@@ -145,7 +143,7 @@ test expr-old-1.50 {integer operators} {expr +36} 36
 test expr-old-1.51 {integer operators} {expr +--++36} 36
 test expr-old-1.52 {integer operators} {expr +36%+5} 1
 test expr-old-1.53 {integer operators} {
-    catch {unset x}
+    unset -nocomplain x
     set x yes
     list [expr {1 && $x}] [expr {$x && 1}] \
          [expr {0 || $x}] [expr {$x || 0}]
@@ -453,7 +451,7 @@ test expr-old-23.3 {double quotes} {
 test expr-old-23.4 {double quotes} {expr {"11\}\}22"}} 11}}22
 test expr-old-23.5 {double quotes} {expr {"\*bc"}} {*bc}
 test expr-old-23.6 {double quotes} {
-    catch {unset bogus__}
+    unset -nocomplain bogus__
     list [catch {expr {"$bogus__"}} msg] $msg
 } {1 {can't read "bogus__": no such variable}}
 test expr-old-23.7 {double quotes} {
@@ -502,7 +500,7 @@ test expr-old-26.2 {error conditions} -body {
 test expr-old-26.3 {error conditions} -body {
     expr 2+4*(
 } -returnCodes error -match glob -result *
-catch {unset _non_existent_}
+unset -nocomplain _non_existent_
 test expr-old-26.4 {error conditions} {
     list [catch {expr 2+$_non_existent_} msg] $msg
 } {1 {can't read "_non_existent_": no such variable}}
@@ -581,7 +579,7 @@ test expr-old-27.4 {cancelled evaluation} {
     expr {1?2:[set a 2]}
     set a
 } 1
-catch {unset x}
+unset -nocomplain x
 test expr-old-27.5 {cancelled evaluation} {
     list [catch {expr {[info exists x] && $x}} msg] $msg
 } {0 0}
diff --git a/tests/fCmd.test b/tests/fCmd.test
index 325b374..c8264b2 100644
--- a/tests/fCmd.test
+++ b/tests/fCmd.test
@@ -128,7 +128,7 @@ proc checkcontent {file matchString} {
 }
 
 proc openup {path} {
-    testchmod 777 $path
+    testchmod 0o777 $path
     if {[file isdirectory $path]} {
 	catch {
 	    foreach p [glob -directory $path *] {
@@ -362,10 +362,10 @@ test fCmd-4.11 {TclFileMakeDirsCmd: doesn't exist: errno != ENOENT} -setup {
     cleanup
 } -constraints {unix notRoot testchmod} -returnCodes error -body {
     file mkdir td1/td2/td3
-    testchmod 000 td1/td2
+    testchmod 0 td1/td2
     file mkdir td1/td2/td3/td4
 } -cleanup {
-    testchmod 755 td1/td2
+    testchmod 0o755 td1/td2
     cleanup
 } -result {can't create directory "td1/td2/td3": permission denied}
 test fCmd-4.13 {TclFileMakeDirsCmd: doesn't exist: errno == ENOENT} -setup {
@@ -505,18 +505,12 @@ test fCmd-6.6 {CopyRenameOneFile: errno != ENOENT} -setup {
     cleanup
 } -constraints {unix notRoot testchmod} -body {
     file mkdir td1
-    testchmod 000 td1
+    testchmod 0 td1
     createfile tf1
     file rename tf1 td1
 } -returnCodes error -cleanup {
-    testchmod 755 td1
+    testchmod 0o755 td1
 } -result {error renaming "tf1" to "td1/tf1": permission denied}
-test fCmd-6.7 {CopyRenameOneFile: errno != ENOENT} -setup {
-    cleanup
-} -constraints {win 95} -returnCodes error -body {
-    createfile tf1
-    file rename tf1 $long
-} -result [subst {error renaming "tf1" to "$long": file name too long}]
 test fCmd-6.9 {CopyRenameOneFile: errno == ENOENT} -setup {
     cleanup
 } -constraints {unix notRoot} -body {
@@ -791,7 +785,7 @@ test fCmd-9.3 {file rename: comprehensive: file to new name} -setup {
 } -constraints {notRoot testchmod} -body {
     createfile tf1
     createfile tf2
-    testchmod 444 tf2
+    testchmod 0o444 tf2
     file rename tf1 tf3
     file rename tf2 tf4
     list [lsort [glob tf*]] [file writable tf3] [file writable tf4]
@@ -800,7 +794,7 @@ test fCmd-9.4.a {file rename: comprehensive: dir to new name} -setup {
     cleanup
 } -constraints {win win2000orXP testchmod} -body {
     file mkdir td1 td2
-    testchmod 555 td2
+    testchmod 0o555 td2
     file rename td1 td3
     file rename td2 td4
     list [lsort [glob td*]] [file writable td3] [file writable td4]
@@ -811,7 +805,7 @@ test fCmd-9.4.b {file rename: comprehensive: dir to new name} -setup {
     cleanup
 } -constraints {unix notRoot testchmod notDarwin9} -body {
     file mkdir td1 td2
-    testchmod 555 td2
+    testchmod 0o555 td2
     file rename td1 td3
     file rename td2 td4
     list [lsort [glob td*]] [file writable td3] [file writable td4]
@@ -823,7 +817,7 @@ test fCmd-9.5 {file rename: comprehensive: file to self} -setup {
 } -constraints {notRoot testchmod} -body {
     createfile tf1 tf1
     createfile tf2 tf2
-    testchmod 444 tf2
+    testchmod 0o444 tf2
     file rename -force tf1 tf1
     file rename -force tf2 tf2
     list [contents tf1] [contents tf2] [file writable tf1] [file writable tf2]
@@ -833,7 +827,7 @@ test fCmd-9.6.a {file rename: comprehensive: dir to self} -setup {
 } -constraints {win win2000orXP testchmod} -body {
     file mkdir td1
     file mkdir td2
-    testchmod 555 td2
+    testchmod 0o555 td2
     file rename -force td1 .
     file rename -force td2 .
     list [lsort [glob td*]] [file writable td1] [file writable td2]
@@ -843,7 +837,7 @@ test fCmd-9.6.b {file rename: comprehensive: dir to self} -setup {
 } -constraints {unix notRoot testchmod} -body {
     file mkdir td1
     file mkdir td2
-    testchmod 555 td2
+    testchmod 0o555 td2
     file rename -force td1 .
     file rename -force td2 .
     list [lsort [glob td*]] [file writable td1] [file writable td2]
@@ -861,10 +855,10 @@ test fCmd-9.7 {file rename: comprehensive: file to existing file} -setup {
     createfile tfd2
     createfile tfd3
     createfile tfd4
-    testchmod 444 tfs3
-    testchmod 444 tfs4
-    testchmod 444 tfd2
-    testchmod 444 tfd4
+    testchmod 0o444 tfs3
+    testchmod 0o444 tfs4
+    testchmod 0o444 tfd2
+    testchmod 0o444 tfd4
     set msg [list [catch {file rename tf1 tf2} msg] $msg]
     file rename -force tfs1 tfd1
     file rename -force tfs2 tfd2
@@ -888,11 +882,11 @@ test fCmd-9.8 {file rename: comprehensive: dir to empty dir} -setup {
     file mkdir [file join tdd3 tds3]
     file mkdir [file join tdd4 tds4]
     if {![testConstraint unix]} {
-	testchmod 555 tds3
-	testchmod 555 tds4
+	testchmod 0o555 tds3
+	testchmod 0o555 tds4
     }
-    testchmod 555 [file join tdd2 tds2]
-    testchmod 555 [file join tdd4 tds4]
+    testchmod 0o555 [file join tdd2 tds2]
+    testchmod 0o555 [file join tdd4 tds4]
     set msg [list [catch {file rename td1 td2} msg] $msg]
     file rename -force tds1 tdd1
     file rename -force tds2 tdd2
@@ -917,7 +911,7 @@ test fCmd-9.9 {file rename: comprehensive: dir to non-empty dir} -setup {
     file mkdir [file join tdd1 tds1 xxx]
     file mkdir [file join tdd2 tds2 xxx]
     if {!([testConstraint unix] || [testConstraint winVista])} {
-	testchmod 555 tds2
+	testchmod 0o555 tds2
     }
     set a1 [list [catch {file rename -force tds1 tdd1} msg] $msg]
     set a2 [list [catch {file rename -force tds2 tdd2} msg] $msg]
@@ -935,7 +929,7 @@ test fCmd-9.10 {file rename: comprehensive: file to new name and dir} -setup {
     createfile tf1
     createfile tf2
     file mkdir td1
-    testchmod 444 tf2
+    testchmod 0o444 tf2
     file rename tf1 [file join td1 tf3]
     file rename tf2 [file join td1 tf4]
     list [catch {glob tf*}] [lsort [glob -directory td1 t*]] \
@@ -948,7 +942,7 @@ test fCmd-9.11 {file rename: comprehensive: dir to new name and dir} -setup {
     file mkdir td2
     file mkdir td3
     if {!([testConstraint unix] || [testConstraint winVista])} {
-	testchmod 555 td2
+	testchmod 0o555 td2
     }
     file rename td1 [file join td3 td3]
     file rename td2 [file join td3 td4]
@@ -964,13 +958,13 @@ test fCmd-9.12 {file rename: comprehensive: target exists} -setup {
     cleanup
 } -constraints {notRoot testchmod notNetworkFilesystem} -body {
     file mkdir [file join td1 td2] [file join td2 td1]
-    testchmod 555 [file join td2 td1]
+    testchmod 0o555 [file join td2 td1]
     file mkdir [file join td3 td4] [file join td4 td3]
     file rename -force td3 td4
     list [file exists td3] [file exists [file join td4 td3 td4]] \
 	[catch {file rename td1 td2} msg] $msg
 } -cleanup {
-    testchmod 755 [file join td2 td1]
+    testchmod 0o755 [file join td2 td1]
 } -result [subst {0 1 1 {error renaming "td1" to "[file join td2 td1]": file already exists}}]
 # Test can hit EEXIST or EBUSY, depending on underlying filesystem
 test fCmd-9.13 {file rename: comprehensive: can't overwrite target} -setup {
@@ -1041,7 +1035,7 @@ test fCmd-10.2 {file copy: comprehensive: file to new name} -setup {
 } -constraints {notRoot testchmod} -body {
     createfile tf1 tf1
     createfile tf2 tf2
-    testchmod 444 tf2
+    testchmod 0o444 tf2
     file copy tf1 tf3
     file copy tf2 tf4
     list [lsort [glob tf*]] [contents tf3] [contents tf4] [file writable tf3] [file writable tf4]
@@ -1051,14 +1045,14 @@ test fCmd-10.3 {file copy: comprehensive: dir to new name} -setup {
 } -constraints {unix notRoot testchmod} -body {
     file mkdir [file join td1 tdx]
     file mkdir [file join td2 tdy]
-    testchmod 555 td2
+    testchmod 0o555 td2
     file copy td1 td3
     file copy td2 td4
     list [lsort [glob td*]] [glob -directory td3 t*] \
 	    [glob -directory td4 t*] [file writable td3] [file writable td4]
 } -cleanup {
-    testchmod 755 td2
-    testchmod 755 td4
+    testchmod 0o755 td2
+    testchmod 0o755 td4
 } -result [list {td1 td2 td3 td4} [file join td3 tdx] [file join td4 tdy] 1 0]
 test fCmd-10.3.1 {file copy: comprehensive: dir to new name} -setup {
     cleanup
@@ -1066,14 +1060,14 @@ test fCmd-10.3.1 {file copy: comprehensive: dir to new name} -setup {
     # On Windows with ACLs, copying a directory is defined like this
     file mkdir [file join td1 tdx]
     file mkdir [file join td2 tdy]
-    testchmod 555 td2
+    testchmod 0o555 td2
     file copy td1 td3
     file copy td2 td4
     list [lsort [glob td*]] [glob -directory td3 t*] \
 	    [glob -directory td4 t*] [file writable td3] [file writable td4]
 } -cleanup {
-    testchmod 755 td2
-    testchmod 755 td4
+    testchmod 0o755 td2
+    testchmod 0o755 td4
 } -result [list {td1 td2 td3 td4} [file join td3 tdx] [file join td4 tdy] 1 1]
 test fCmd-10.4 {file copy: comprehensive: file to existing file} -setup {
     cleanup
@@ -1088,10 +1082,10 @@ test fCmd-10.4 {file copy: comprehensive: file to existing file} -setup {
     createfile tfd2
     createfile tfd3
     createfile tfd4
-    testchmod 444 tfs3
-    testchmod 444 tfs4
-    testchmod 444 tfd2
-    testchmod 444 tfd4
+    testchmod 0o444 tfs3
+    testchmod 0o444 tfs4
+    testchmod 0o444 tfd2
+    testchmod 0o444 tfd4
     set msg [list [catch {file copy tf1 tf2} msg] $msg]
     file copy -force tfs1 tfd1
     file copy -force tfs2 tfd2
@@ -1112,10 +1106,10 @@ test fCmd-10.5 {file copy: comprehensive: dir to empty dir} -setup {
     file mkdir [file join tdd2 tds2]
     file mkdir [file join tdd3 tds3]
     file mkdir [file join tdd4 tds4]
-    testchmod 555 tds3
-    testchmod 555 tds4
-    testchmod 555 [file join tdd2 tds2]
-    testchmod 555 [file join tdd4 tds4]
+    testchmod 0o555 tds3
+    testchmod 0o555 tds4
+    testchmod 0o555 [file join tdd2 tds2]
+    testchmod 0o555 [file join tdd4 tds4]
     set a1 [list [catch {file copy td1 td2} msg] $msg]
     set a2 [list [catch {file copy -force tds1 tdd1} msg] $msg]
     set a3 [catch {file copy -force tds2 tdd2}]
@@ -1130,7 +1124,7 @@ test fCmd-10.6 {file copy: comprehensive: dir to non-empty dir} -setup {
     file mkdir tds2
     file mkdir [file join tdd1 tds1 xxx]
     file mkdir [file join tdd2 tds2 xxx]
-    testchmod 555 tds2
+    testchmod 0o555 tds2
     set a1 [list [catch {file copy -force tds1 tdd1} msg] $msg]
     set a2 [list [catch {file copy -force tds2 tdd2} msg] $msg]
     list [lsort [glob td*]] $a1 $a2 [file writable tds1] [file writable tds2]
@@ -1141,7 +1135,7 @@ test fCmd-10.7 {file rename: comprehensive: file to new name and dir} -setup {
     createfile tf1
     createfile tf2
     file mkdir td1
-    testchmod 444 tf2
+    testchmod 0o444 tf2
     file copy tf1 [file join td1 tf3]
     file copy tf2 [file join td1 tf4]
     list [lsort [glob tf*]] [lsort [glob -directory td1 t*]] \
@@ -1153,7 +1147,7 @@ test fCmd-10.8 {file rename: comprehensive: dir to new name and dir} -setup {
     file mkdir td1
     file mkdir td2
     file mkdir td3
-    testchmod 555 td2
+    testchmod 0o555 td2
     file copy td1 [file join td3 td3]
     file copy td2 [file join td3 td4]
     list [lsort [glob td*]] [lsort [glob -directory td3 t*]] \
@@ -1166,7 +1160,7 @@ test fCmd-10.8.1 {file rename: comprehensive: dir to new name and dir} -setup {
     file mkdir td1
     file mkdir td2
     file mkdir td3
-    testchmod 555 td2
+    testchmod 0o555 td2
     file copy td1 [file join td3 td3]
     file copy td2 [file join td3 td4]
     list [lsort [glob td*]] [lsort [glob -directory td3 t*]] \
@@ -2330,10 +2324,10 @@ test fCmd-28.2 {file link} -returnCodes error -body {
 } -result {wrong # args: should be "file link ?-linktype? linkname ?target?"}
 test fCmd-28.3 {file link} -returnCodes error -body {
     file link abc b c
-} -result {bad switch "abc": must be -symbolic or -hard}
+} -result {bad option "abc": must be -symbolic or -hard}
 test fCmd-28.4 {file link} -returnCodes error -body {
     file link -abc b c
-} -result {bad switch "-abc": must be -symbolic or -hard}
+} -result {bad option "-abc": must be -symbolic or -hard}
 cd [workingDirectory]
 makeDirectory abc.dir
 makeDirectory abc2.dir
@@ -2441,14 +2435,17 @@ test fCmd-28.12 {file link: cd into a link} -setup {
 	return "ok"
     }
 } -cleanup {
+    file delete -force abc.link
     cd [workingDirectory]
 } -result ok
 test fCmd-28.13 {file link} -constraints {linkDirectory} -setup {
     cd [temporaryDirectory]
+    file link abc.link abc.dir
 } -body {
     # duplicate link throws error
     file link abc.link abc.dir
 } -returnCodes error -cleanup {
+    file delete -force abc.link
     cd [workingDirectory]
 } -result {could not create new link "abc.link": that path already exists}
 test fCmd-28.14 {file link: deletes link not dir} -setup {
@@ -2469,6 +2466,7 @@ test fCmd-28.15.1 {file link: copies link not dir} -setup {
     # directory, not a link (links trace to endpoint).
     list [file type abc2.link] [file tail [file link abc.link]]
 } -cleanup {
+    file delete -force abc.link
     cd [workingDirectory]
 } -result {directory abc.dir}
 test fCmd-28.15.2 {file link: copies link not dir} -setup {
@@ -2479,6 +2477,7 @@ test fCmd-28.15.2 {file link: copies link not dir} -setup {
     file copy abc.link abc2.link
     list [file type abc2.link] [file tail [file link abc2.link]]
 } -cleanup {
+    file delete -force abc.link
     cd [workingDirectory]
 } -result {link abc.dir}
 cd [temporaryDirectory]
@@ -2498,20 +2497,25 @@ test fCmd-28.16 {file link: glob inside link} -setup {
     file link abc.link abc.dir
     lsort [glob -dir abc.link -tails *]
 } -cleanup {
+    file delete -force abc.link
     cd [workingDirectory]
 } -result {abc.file abc2.file}
 test fCmd-28.17 {file link: glob -type l} -setup {
     cd [temporaryDirectory]
+    file link abc.link abc.dir
 } -constraints {linkDirectory} -body {
     glob -dir [pwd] -type l -tails abc*
 } -cleanup {
+    file delete -force abc.link
     cd [workingDirectory]
 } -result {abc.link}
 test fCmd-28.18 {file link: glob -type d} -constraints linkDirectory -setup {
     cd [temporaryDirectory]
+    file link abc.link abc.dir
 } -body {
     lsort [glob -dir [pwd] -type d -tails abc*]
 } -cleanup {
+    file delete -force abc.link
     cd [workingDirectory]
 } -result [lsort [list abc.link abc.dir abc2.dir]]
 test fCmd-28.19 {file link: relative paths} -setup {
diff --git a/tests/fileName.test b/tests/fileName.test
index 6dd1cb4..51f00d1 100644
--- a/tests/fileName.test
+++ b/tests/fileName.test
@@ -749,7 +749,7 @@ test filename-11.13 {Tcl_GlobCmd} {
 } [file join $env(HOME)]
 set oldpwd [pwd]
 set oldhome $env(HOME)
-cd [temporaryDirectory]
+catch {cd [makeDirectory tcl[pid]]}
 set env(HOME) [pwd]
 file delete -force globTest
 file mkdir globTest/a1/b1
@@ -1616,6 +1616,7 @@ catch {file delete -force C:/globTest}
 cd [temporaryDirectory]
 file delete -force globTest
 cd $oldpwd
+catch {removeDirectory tcl[pid]}
 set env(HOME) $oldhome
 if {[testConstraint testsetplatform]} {
     testsetplatform $platform
diff --git a/tests/fileSystem.test b/tests/fileSystem.test
index b098f35..9fe4fe9 100644
--- a/tests/fileSystem.test
+++ b/tests/fileSystem.test
@@ -138,13 +138,18 @@ test filesystem-1.9 {link normalisation} -setup {
     testPathEqual [file normalize [file join dir.dir linkinside.file foo]] \
 	[file normalize [file join dir.link inside.file foo]]
 } -result ok
-test filesystem-1.10 {link normalisation: double link} {unix hasLinks} {
+test filesystem-1.10 {link normalisation: double link} -constraints {
+    unix hasLinks
+} -body {
     file link dir2.link dir.link
     testPathEqual [file normalize [file join dir.dir linkinside.file foo]] \
 	[file normalize [file join dir2.link inside.file foo]]
-} ok
+} -cleanup {
+    file delete dir2.link
+} -result ok 
 makeDirectory dir2.file
 test filesystem-1.11 {link normalisation: double link, back in tree} {unix hasLinks} {
+    file link dir2.link dir.link
     file link [file join dir2.file dir2.link] [file join .. dir2.link]
     testPathEqual [file normalize [file join dir.dir linkinside.file foo]] \
 	[file normalize [file join dir2.file dir2.link inside.file foo]]
@@ -373,7 +378,9 @@ test filesystem-2.0 {new native path} {unix} {
 
 # Make sure the testfilesystem hasn't been registered.
 if {[testConstraint testfilesystem]} {
+  proc resetfs {} {
     while {![catch {testfilesystem 0}]} {}
+  }
 }
 
 test filesystem-3.1 {Tcl_FSRegister & Tcl_FSUnregister} testfilesystem {
@@ -388,12 +395,14 @@ test filesystem-3.3 {Tcl_FSRegister} testfilesystem {
     testfilesystem 0
     testfilesystem 0
 } {unregistered}
-test filesystem-3.4 {Tcl_FSRegister} testfilesystem {
+test filesystem-3.4 {Tcl_FSRegister} -constraints testfilesystem -body {
     testfilesystem 1
     file system bar
-} {reporting}
-test filesystem-3.5 {Tcl_FSUnregister} testfilesystem {
+} -cleanup {
     testfilesystem 0
+} -result {reporting}
+test filesystem-3.5 {Tcl_FSUnregister} testfilesystem {
+    resetfs
     lindex [file system bar] 0
 } {native}
 
@@ -504,6 +513,9 @@ test filesystem-6.32 {empty file name} -returnCodes error -body {
     file type ""
 } -result {could not read "": no such file or directory}
 test filesystem-6.33 {empty file name} {file writable ""} 0
+test filesystem-6.34 {file name with (invalid) nul character} {
+    list [catch "open foo\x00" msg] $msg
+} [list 1 "couldn't open \"foo\x00\": filename is invalid on this platform"]
 
 # Make sure the testfilesystem hasn't been registered.
 if {[testConstraint testfilesystem]} {
@@ -632,7 +644,7 @@ test filesystem-7.4 {cross-filesystem file copy with -force} -setup {
     file delete -force simplefile
     file delete -force file2
     cd $dir
-} -result {0 10 1 {error copying "simplefs:/simplefile" to "file2": file already exists} 0 10 1}
+} -result {0 {} 1 {error copying "simplefs:/simplefile" to "file2": file already exists} 0 {} 1}
 test filesystem-7.5 {cross-filesystem file copy with -force} -setup {
     set dir [pwd]
     cd [tcltest::temporaryDirectory]
@@ -657,7 +669,7 @@ test filesystem-7.5 {cross-filesystem file copy with -force} -setup {
     file delete -force simplefile
     file delete -force file2
     cd $dir
-} -result {0 10 1 {error copying "simplefs:/simplefile" to "file2": file already exists} 0 10 1}
+} -result {0 {} 1 {error copying "simplefs:/simplefile" to "file2": file already exists} 0 {} 1}
 test filesystem-7.6 {cross-filesystem dir copy with -force} -setup {
     set dir [pwd]
     cd [tcltest::temporaryDirectory]
diff --git a/tests/for.test b/tests/for.test
index ff4dc0e..8abd270 100644
--- a/tests/for.test
+++ b/tests/for.test
@@ -14,6 +14,12 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
     namespace import -force ::tcltest::*
 }
 
+# Used for constraining memory leak tests
+testConstraint memory [llength [info commands memory]]
+if {[testConstraint memory]} {
+    proc meminfo {} {lindex [split [memory info] "\n"] 3 3}
+}
+
 # Basic "for" operation.
 
 test for-1.1 {TclCompileForCmd: missing initial command} {
@@ -345,7 +351,6 @@ proc formatMail {} {
         64 {        UNIX (Solaris 2.* and SunOS, other systems soon to follow). Easy to install} \
         65 {     binary packages are now for sale at the Sun Labs Tcl/Tk Shop. Check it out!} \
     }
-
     set result ""
     set NL "
 "
@@ -365,7 +370,6 @@ proc formatMail {} {
     } else {
 	set break 1
     }
-
     set xmailer 0
     set inheaders 1
     set last [array size lines]
@@ -386,9 +390,7 @@ proc formatMail {} {
 	    set limit 55
 	} else {
 	    set limit 55
-
 	    # Decide whether or not to break the body line
-
 	    if {$plen > 0} {
 		if {[string first {> } $line] == 0} {
 		    # This is quoted text from previous message, don't reformat
@@ -431,7 +433,7 @@ proc formatMail {} {
 	set climit [expr $limit-1]
 	set cutoff 50
 	set continuation 0
-	
+
 	while {[string length $line] > $limit} {
 	    for {set c [expr $limit-1]} {$c >= $cutoff} {incr c -1} {
 		set char [string index $line $c]
@@ -824,7 +826,369 @@ test for-6.18 {Tcl_ForObjCmd: for command result} {
     1 {invoked "continue" outside of a loop} \
     ]
 
-
+test for-7.1 {Bug 3614226: ensure that break cleans up the stack} memory {
+    apply {{} {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {$x < 5} {incr x} {
+		list a b c [break] d e f
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.2 {Bug 3614226: ensure that continue cleans up the stack} memory {
+    apply {{} {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {$x < 5} {incr x} {
+		list a b c [continue] d e f
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.3 {Bug 3614226: ensure that break cleans up the expansion stack} memory {
+    apply {{} {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts {*}[puts a b c {*}[break] d e f]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.4 {Bug 3614226: ensure that continue cleans up the expansion stack} memory {
+    apply {{} {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts {*}[puts a b c {*}[continue] d e f]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.5 {Bug 3614226: ensure that break cleans up the combination of main and expansion stack} memory {
+    apply {{} {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[break] d e f]]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.6 {Bug 3614226: ensure that continue cleans up the combination of main and expansion stack} memory {
+    apply {{} {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[continue] d e f]]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.7 {Bug 3614226: ensure that break only cleans up the right amount} memory {
+    apply {{} {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    unset -nocomplain {*}[for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[break] d e f]]
+	    }]
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.8 {Bug 3614226: ensure that continue only cleans up the right amount} memory {
+    apply {{} {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    unset -nocomplain {*}[for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[continue] d e f]]
+	    }]
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.9 {Bug 3614226: ensure that break from invoked command cleans up the stack} memory {
+    apply {{} {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {$x < 5} {incr x} {
+		list a b c [apply {{} {return -code break}}] d e f
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.10 {Bug 3614226: ensure that continue from invoked command cleans up the stack} memory {
+    apply {{} {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {$x < 5} {incr x} {
+		list a b c [apply {{} {return -code continue}}] d e f
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.11 {Bug 3614226: ensure that break from invoked command cleans up the expansion stack} memory {
+    apply {{} {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts {*}[puts a b c {*}[apply {{} {return -code break}}] d e f]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.12 {Bug 3614226: ensure that continue from invoked command cleans up the expansion stack} memory {
+    apply {{} {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts {*}[puts a b c {*}[apply {{} {
+		    return -code continue
+		}}] d e f]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.13 {Bug 3614226: ensure that break from invoked command cleans up the combination of main and expansion stack} memory {
+    apply {{} {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[apply {{} {
+		    return -code break
+		}}] d e f]]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.14 {Bug 3614226: ensure that continue from invoked command cleans up the combination of main and expansion stack} memory {
+    apply {{} {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[apply {{} {
+		    return -code continue
+		}}] d e f]]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.15 {Bug 3614226: ensure that break from invoked command only cleans up the right amount} memory {
+    apply {{} {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    unset -nocomplain {*}[for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[apply {{} {
+		    return -code break
+		}}] d e f]]
+	    }]
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.16 {Bug 3614226: ensure that continue from invoked command only cleans up the right amount} memory {
+    apply {{} {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    unset -nocomplain {*}[for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[apply {{} {
+		    return -code continue
+		}}] d e f]]
+	    }]
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }}
+} 0
+test for-7.17 {Bug 3614226: ensure that break from expanded command cleans up the stack} memory {
+    apply {op {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {$x < 5} {incr x} {
+		list a b c [{*}$op] d e f
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }} {return -level 0 -code break}
+} 0
+test for-7.18 {Bug 3614226: ensure that continue from expanded command cleans up the stack} memory {
+    apply {op {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {$x < 5} {incr x} {
+		list a b c [{*}$op] d e f
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }} {return -level 0 -code continue}
+} 0
+test for-7.19 {Bug 3614226: ensure that break from expanded command cleans up the expansion stack} memory {
+    apply {op {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts {*}[puts a b c {*}[{*}$op] d e f]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }} {return -level 0 -code break}
+} 0
+test for-7.20 {Bug 3614226: ensure that continue from expanded command cleans up the expansion stack} memory {
+    apply {op {
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts {*}[puts a b c {*}[{*}$op] d e f]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }} {return -level 0 -code continue}
+} 0
+test for-7.21 {Bug 3614226: ensure that break from expanded command cleans up the combination of main and expansion stack} memory {
+    apply {op {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[{*}$op] d e f]]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }} {return -level 0 -code break}
+} 0
+test for-7.22 {Bug 3614226: ensure that continue from expanded command cleans up the combination of main and expansion stack} memory {
+    apply {op {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[{*}$op] d e f]]
+	    }
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }} {return -level 0 -code continue}
+} 0
+test for-7.23 {Bug 3614226: ensure that break from expanded command only cleans up the right amount} memory {
+    apply {op {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    unset -nocomplain {*}[for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[{*}$op] d e f]]
+	    }]
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }} {return -level 0 -code break}
+} 0
+test for-7.24 {Bug 3614226: ensure that continue from expanded command only cleans up the right amount} memory {
+    apply {op {
+	set l [lrepeat 50 p q r]
+	# Can't use [memtest]; must be careful when we change stack frames
+	set end [meminfo]
+	for {set i 0} {$i < 5} {incr i} {
+	    unset -nocomplain {*}[for {set x 0} {[incr x]<50} {} {
+		puts [puts {*}$l {*}[puts a b c {*}$l {*}[{*}$op] d e f]]
+	    }]
+	    set tmp $end
+	    set end [meminfo]
+	}
+	expr {$end - $tmp}
+    }} {return -level 0 -code continue}
+} 0
+
 # cleanup
 ::tcltest::cleanupTests
 return
+
+# Local Variables:
+# mode: tcl
+# End:
diff --git a/tests/foreach.test b/tests/foreach.test
index a4b652a..6fd5476 100644
--- a/tests/foreach.test
+++ b/tests/foreach.test
@@ -254,6 +254,17 @@ test foreach-9.1 {compiled empty var list} {
     list [catch { foo } msg] $msg
 } {1 {foreach varlist is empty}}
 
+test foreach-9.2 {line numbers} -setup {
+    proc linenumber {} {dict get [info frame -1] line}
+} -body {
+    apply {n {
+        foreach x y {*}{
+        } {return [incr n -[linenumber]]}
+    }} [linenumber]
+} -cleanup {
+    rename linenumber {}
+} -result 1
+
 test foreach-10.1 {foreach: [Bug 1671087]} -setup {
     proc demo {} {
 	set vals {1 2 3 4}
@@ -266,6 +277,15 @@ test foreach-10.1 {foreach: [Bug 1671087]} -setup {
     rename demo {}
 } -result {}
 
+test foreach-11.1 {error then dereference loop var (dev bug)} {
+  catch { foreach a 0 b {1 2 3} { error x } }
+  set a
+} 0
+test foreach-11.2 {error then dereference loop var (dev bug)} {
+  catch { foreach a 0 b {1 2 3} { incr a $b; error x } }
+  set a
+} 1
+
 # cleanup
 catch {unset a}
 catch {unset x}
diff --git a/tests/http.test b/tests/http.test
index bde5795..41820cb 100644
--- a/tests/http.test
+++ b/tests/http.test
@@ -51,7 +51,7 @@ if {![file exists $httpdFile]} {
     set removeHttpd 1
 }
 
-catch {package require Thread 2.6}
+catch {package require Thread 2.7-}
 if {[catch {package present Thread}] == 0 && [file exists $httpdFile]} {
     set httpthread [thread::create -preserved]
     thread::send $httpthread [list source $httpdFile]
@@ -119,7 +119,7 @@ test http-3.2 {http::geturl} -returnCodes error -body {
     http::geturl http:junk
 } -result {Unsupported URL: http:junk}
 set url //[info hostname]:$port
-set badurl //[info hostname]:6666
+set badurl //[info hostname]:[expr $port+1]
 test http-3.3 {http::geturl} -body {
     set token [http::geturl $url]
     http::data $token
@@ -131,10 +131,11 @@ test http-3.3 {http::geturl} -body {
 </body></html>"
 set tail /a/b/c
 set url //[info hostname]:$port/a/b/c
-set fullurl http://user:pass@[info hostname]:$port/a/b/c
+set fullurl HTTP://user:pass@[info hostname]:$port/a/b/c
 set binurl //[info hostname]:$port/binary
 set posturl //[info hostname]:$port/post
 set badposturl //[info hostname]:$port/droppost
+set authorityurl //[info hostname]:$port
 set ipv6url http://\[::1\]:$port/
 test http-3.4 {http::geturl} -body {
     set token [http::geturl $url]
@@ -305,7 +306,6 @@ test http-3.13 {http::geturl socket leak test} {
     for {set i 0} {$i < 3} {incr i} {
 	catch {http::geturl $badurl -timeout 5000}
     }
-
     # No extra channels should be taken
     expr {[llength [file channels]] == $chanCount}
 } 1
@@ -371,11 +371,11 @@ test http-3.27 {http::geturl: -headers override -type} -body {
     http::data $token
 } -cleanup {
     http::cleanup $token
-} -match regexp -result {(?n)Accept \*/\*
-Host .*
+} -match regexp -result {(?n)Host .*
 User-Agent .*
 Connection close
 Content-Type {text/plain;charset=utf-8}
+Accept \*/\*
 Accept-Encoding .*
 Content-Length 5}
 test http-3.28 {http::geturl: -headers override -type default} -body {
@@ -384,14 +384,14 @@ test http-3.28 {http::geturl: -headers override -type default} -body {
     http::data $token
 } -cleanup {
     http::cleanup $token
-} -match regexp -result {(?n)Accept \*/\*
-Host .*
+} -match regexp -result {(?n)Host .*
 User-Agent .*
 Connection close
 Content-Type {text/plain;charset=utf-8}
+Accept \*/\*
 Accept-Encoding .*
 Content-Length 5}
-test http-3.29 "http::geturl $ipv6url" -body {
+test http-3.29 {http::geturl IPv6 address} -body {
     # We only want to see if the URL gets parsed correctly. This is
     # the case if http::geturl succeeds or returns a socket related
     # error. If the parsing is wrong, we'll get a parse error.
@@ -405,6 +405,32 @@ test http-3.29 "http::geturl $ipv6url" -body {
 } -cleanup {
     catch { http::cleanup $token }
 } -result 0
+test http-3.30 {http::geturl query without path} -body {
+    set token [http::geturl $authorityurl?var=val]
+    http::ncode $token
+} -cleanup {
+    catch { http::cleanup $token }
+} -result 200
+test http-3.31 {http::geturl fragment without path} -body {
+    set token [http::geturl "$authorityurl#fragment42"]
+    http::ncode $token
+} -cleanup {
+    catch { http::cleanup $token }
+} -result 200
+# Bug c11a51c482
+test http-3.32 {http::geturl: -headers override -accept default} -body {
+    set token [http::geturl $url/headers -query dummy \
+	    -headers [list "Accept" "text/plain,application/tcl-test-value"]]
+    http::data $token
+} -cleanup {
+    http::cleanup $token
+} -match regexp -result {(?n)Host .*
+User-Agent .*
+Connection close
+Accept text/plain,application/tcl-test-value
+Accept-Encoding .*
+Content-Type application/x-www-form-urlencoded
+Content-Length 5}
 
 test http-4.1 {http::Event} -body {
     set token [http::geturl $url -keepalive 0]
@@ -480,14 +506,10 @@ proc myProgress {token total current} {
     }
     set progress [list $total $current]
 }
-if 0 {
-    # This test hangs on Windows95 because the client never gets EOF
-    set httpLog 1
-    test http-4.6.1 {http::Event} knownBug {
-	set token [http::geturl $url -blocksize 50 -progress myProgress]
-	return $progress
-    } {111 111}
-}
+test http-4.6.1 {http::Event} knownBug {
+    set token [http::geturl $url -blocksize 50 -progress myProgress]
+    return $progress
+} {111 111}
 test http-4.7 {http::Event} -body {
     set token [http::geturl $url -keepalive 0 -progress myProgress]
     return $progress
@@ -547,11 +569,10 @@ test http-4.14 {http::Event} -body {
 	error "bogus return from http::geturl"
     }
     http::wait $token
-    http::status $token
-    # error code varies among platforms.
-} -returnCodes 1 -match regexp -cleanup {
+    lindex [http::error $token] 0
+} -cleanup {
     catch {http::cleanup $token}
-} -result {(connect failed|couldn't open socket)}
+} -result {connect failed connection refused}
 # Bogus host
 test http-4.15 {http::Event} -body {
     # This test may fail if you use a proxy server. That is to be
diff --git a/tests/http11.test b/tests/http11.test
index 230ce5a..c9ded0b 100644
--- a/tests/http11.test
+++ b/tests/http11.test
@@ -70,11 +70,8 @@ proc check_crc {tok args} {
     return "ok"
 }
 
-makeFile "<html><head><title>test</title></head>\
-<body><p>this is a test</p>\n\
-[string repeat {<p>This is a tcl test file.</p>} 4192]\n\
-</body></html>" testdoc.html
-
+makeFile "<html><head><title>test</title></head><body><p>this is a test</p>\n[string repeat {<p>This is a tcl test file.</p>} 4192]\n</body></html>" testdoc.html
+
 # -------------------------------------------------------------------------
 
 test http11-1.0 "normal request for document " -setup {
@@ -447,7 +444,8 @@ test http11-2.10 "-channel,deflate,keepalive" -setup {
     set chan [open [makeFile {} testfile.tmp] wb+]
 } -body {
     set tok [http::geturl http://localhost:$httpd_port/testdoc.html \
-                 -timeout 5000 -channel $chan -keepalive 1]
+                 -timeout 5000 -channel $chan -keepalive 1 \
+		 -headers {accept-encoding deflate}]
     http::wait $tok
     seek $chan 0
     set data [read $chan]
@@ -482,6 +480,27 @@ test http11-2.11 "-channel,identity,keepalive" -setup {
     halt_httpd
 } -result {ok {HTTP/1.1 200 OK} ok {} {} chunked}
 
+test http11-2.12 "-channel,negotiate,keepalive" -setup {
+    variable httpd [create_httpd]
+    set chan [open [makeFile {} testfile.tmp] wb+]
+} -body {
+    set tok [http::geturl http://localhost:$httpd_port/testdoc.html \
+                 -timeout 5000 -channel $chan -keepalive 1]
+    http::wait $tok
+    seek $chan 0
+    set data [read $chan]
+    list [http::status $tok] [http::code $tok] [check_crc $tok $data]\
+        [meta $tok connection] [meta $tok content-encoding]\
+        [meta $tok transfer-encoding] [meta $tok x-requested-encodings]\
+        [expr {[file size testdoc.html]-[file size testfile.tmp]}]
+} -cleanup {
+    http::cleanup $tok
+    close $chan
+    removeFile testfile.tmp
+    halt_httpd
+} -result {ok {HTTP/1.1 200 OK} ok {} gzip chunked gzip,deflate,compress 0}
+
+
 # -------------------------------------------------------------------------
 #
 # The following tests for the -handler option will require changes in
@@ -644,7 +663,7 @@ test http11-4.3 "normal post request, check channel query length" -setup {
     removeFile testfile.tmp
     halt_httpd
 } -result {status ok code {HTTP/1.1 200 OK} crc ok connection close query-length 122880}
-
+
 # -------------------------------------------------------------------------
 
 foreach p {create_httpd httpd_read halt_httpd meta check_crc} {
diff --git a/tests/httpd b/tests/httpd
index f810797..232e80a 100644
--- a/tests/httpd
+++ b/tests/httpd
@@ -40,7 +40,7 @@ proc httpdAccept {newsock ipaddr port} {
     fconfigure $newsock -blocking 0 -translation {auto crlf}
     httpd_log $newsock Connect $ipaddr $port
     set data(ipaddr) $ipaddr
-    fileevent $newsock readable [list httpdRead $newsock]
+    after 50 [list fileevent $newsock readable [list httpdRead $newsock]]
 }
 
 # read data from a client request
diff --git a/tests/httpd11.tcl b/tests/httpd11.tcl
index 9c543dc..267f409 100644
--- a/tests/httpd11.tcl
+++ b/tests/httpd11.tcl
@@ -158,13 +158,13 @@ proc Service {chan addr port} {
         }
         
         if {$protocol eq "HTTP/1.1"} {
-            if {[string match "*deflate*" [dict get? $meta accept-encoding]]} {
-                set encoding deflate
-            } elseif {[string match "*gzip*" [dict get? $meta accept-encoding]]} {
-                set encoding gzip
-            } elseif {[string match "*compress*" [dict get? $meta accept-encoding]]} {
-                set encoding compress
-            }
+	    foreach enc [split [dict get? $meta accept-encoding] ,] {
+		set enc [string trim $enc]
+		if {$enc in {deflate gzip compress}} {
+		    set encoding $enc
+		    break
+		}
+	    }
             set transfer chunked
         } else {
             set close 1
@@ -189,6 +189,7 @@ proc Service {chan addr port} {
         if {$close} {
             Puts $chan "connection: close"
         }
+	Puts $chan "x-requested-encodings: [dict get? $meta accept-encoding]"
         if {$encoding eq "identity"} {
             Puts $chan "content-length: [string length $data]"
         } else {
diff --git a/tests/info.test b/tests/info.test
index 7dd63b7..3057dd2 100644
--- a/tests/info.test
+++ b/tests/info.test
@@ -692,31 +692,31 @@ test info-21.5 {miscellaneous error conditions} -returnCodes error -body {
 ##
 # ### ### ### ######### ######### #########
 ## info frame
+
 ## Helper
 # For the more complex results we cut the file name down to remove path
 # dependencies, and we use only part of the first line of the reported
 # command. The latter is required because otherwise the whole test case may
 # appear in some results, but the result is part of the testcase. An infinite
 # string would be required to describe that. The cutting-down breaks this.
+
 proc reduce {frame} {
-    set  pos [lsearch -exact $frame cmd]
-    incr pos
-    set  cmd [lindex $frame $pos]
+    set cmd [dict get $frame cmd]
     if {[regexp \n $cmd]} {
-	set first [string range [lindex [split $cmd \n] 0] 0 end-4]
-	set frame [lreplace $frame $pos $pos $first]
+	dict set frame cmd \
+	    [string range [lindex [split $cmd \n] 0] 0 end-4]
     }
-    set pos [lsearch -exact $frame file]
-    if {$pos >=0} {
-	incr pos
-	set tail  [file tail [lindex $frame $pos]]
-	set frame [lreplace $frame $pos $pos $tail]
+    if {[dict exists $frame file]} {
+	dict set frame file \
+	    [file tail [dict get $frame file]]
     }
-    set frame
+    return $frame
 }
+
 proc subinterp {} { interp create sub ; interp debug sub -frame 1;
     interp eval sub [list proc reduce [info args reduce] [info body reduce]]
 }
+
 ## Helper
 # Generate a stacktrace from the current location to top.  This code
 # not only depends on the exact location of things, but also on the
@@ -1454,9 +1454,9 @@ test info-30.1 {bs+nl in literal words, procedure body, compiled} -body {
 test info-30.2 {bs+nl in literal words, namespace script} {
     namespace eval xxx {
 	variable res \
-	    [reduce [info frame 0]];# line 1457
+	    [info frame 0];# line 1457
     }
-    return $xxx::res
+    return [reduce $xxx::res]
 } {type source line 1457 file info.test cmd {info frame 0} level 0}
 
 test info-30.3 {bs+nl in literal words, namespace multi-word script} {
@@ -1955,6 +1955,446 @@ test info-38.2 {location information for uplevel, dl, direct-literal} -match glo
 * {type source line 1951 file info.test cmd etrace level 1}
 * {type source line 1949 file info.test cmd uplevel\\ \\\\ level 1}} -cleanup {interp delete sub}
 
+# This test at the end of this file _only_ to avoid disturbing above line
+# numbers. It _belongs_ after info-9.12
+test info-9.13 {info level option, value in global context} -body {
+    uplevel #0 {info level 2}
+} -returnCodes error -result {bad level "2"}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    catch {*}{
+	{info frame 0}
+	res
+    }
+    return $res
+}
+test info-33.4 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 1968 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    dict for {a b} {c d} {*}{
+	{set res [info frame 0]}
+    }
+    return $res
+}
+test info-33.5 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 1983 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    set d {a b}
+    dict update d x y {*}{
+	{set res [info frame 0]}
+    }
+    return $res
+}
+test info-33.6 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 1998 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    set d {}
+    dict with d {*}{
+	{set res [info frame 0]}
+    }
+    return $res
+}
+test info-33.7 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2013 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    for {*}{
+	{set res [info frame 0]}
+	{1} {} {break}
+    }
+    return $res
+}
+test info-33.8 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2027 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    for {*}{
+	{} {1} {}
+	{set res [info frame 0]; break}
+    }
+    return $res
+}
+test info-33.9 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2043 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    for {*}{
+	{} {1}
+	{return [info frame 0]}
+	{}
+    }
+}
+test info-33.10 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2058 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    for {*}{
+	{}
+	{[return [info frame 0]]}
+	{} {}
+    }
+}
+test info-33.11 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2073 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    foreach {*}{
+	x
+    } [return [info frame 0]] {}
+}
+test info-33.12 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2088 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    foreach {*}{
+	x y
+	{set res [info frame 0]}
+    } 
+    return $res
+}
+test info-33.13 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2101 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    if {*}{
+	{[return [info frame 0]]}
+	{}
+    } 
+}
+test info-33.14 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2115 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    if 0 {*}{
+	{} else
+	{return [info frame 0]}
+    } 
+}
+test info-33.15 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2130 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    incr {*}{
+	x
+    } [return [info frame 0]]
+}
+test info-33.16 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2144 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    info level {*}{
+    } [return [info frame 0]]
+}
+test info-33.17 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2156 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    string match {*}{
+    } [return [info frame 0]] {}
+}
+test info-33.18 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2168 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    string match {*}{
+	{}
+    } [return [info frame 0]]
+}
+test info-33.19 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2181 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    string length {*}{
+    } [return [info frame 0]]
+}
+test info-33.20 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2193 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    while {*}{
+	{[return [info frame 0]]}
+    } {}
+}
+test info-33.21 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2205 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    switch -- {*}{
+    } [return [info frame 0]] {*}{
+    } x y
+}
+test info-33.22 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2218 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    try {*}{
+	{set res [info frame 0]}
+    } 
+    return $res
+}
+test info-33.23 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2231 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    try {*}{
+	{set res [info frame 0]}
+    } finally {}
+    return $res
+}
+test info-33.24 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2245 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    try {*}{
+	{set res [info frame 0]}
+    } on ok {} {}
+    return $res
+}
+test info-33.25 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2259 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    try {*}{
+	{set res [info frame 0]}
+    } on ok {} {} finally {}
+    return $res
+}
+test info-33.26 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2273 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    while 1 {*}{
+	{return [info frame 0]}
+    }
+}
+test info-33.27 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2287 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    try {} finally {*}{
+	{return [info frame 0]}
+    }
+}
+test info-33.28 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2300 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    try {} on ok {} {} finally {*}{
+	{return [info frame 0]}
+    }
+}
+test info-33.29 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2313 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    try {} on ok {} {*}{
+	{return [info frame 0]}
+    }
+}
+test info-33.30 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2326 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    try {} on ok {} {*}{
+	{return [info frame 0]}
+    } finally {}
+}
+test info-33.31 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2339 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    binary format {*}{
+    } [return [info frame 0]]
+}
+test info-33.32 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2352 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    set format format
+    binary $format {*}{
+    } [return [info frame 0]]
+}
+test info-33.33 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2365 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    append x {*}{
+    } [return [info frame 0]]
+}
+test info-33.34 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2377 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
+# -------------------------------------------------------------------------
+namespace eval foo {}
+proc foo::bar {} {
+    append {*}{
+    } x([return [info frame 0]]) {*}{
+    } a
+}
+test info-33.35 {{*}, literal, simple, bytecompiled} -body {
+    reduce [foo::bar]
+} -cleanup {
+    namespace delete foo
+} -result {type source line 2389 file info.test cmd {info frame 0} proc ::foo::bar level 0}
+
 # -------------------------------------------------------------------------
 unset -nocomplain res
 
diff --git a/tests/interp.test b/tests/interp.test
index 0af9887..4bc9fe2 100644
--- a/tests/interp.test
+++ b/tests/interp.test
@@ -1599,6 +1599,20 @@ test interp-20.50 {Bug 2486550} -setup {
 } -cleanup {
     interp delete slave
 } -returnCodes error -match glob -result *
+test interp-20.50.1 {Bug 2486550} -setup {
+    interp create slave
+} -body {
+    slave hide coroutine
+    catch {slave invokehidden coroutine} m o
+    dict get $o -errorinfo
+} -cleanup {
+    unset -nocomplain m 0
+    interp delete slave
+} -returnCodes ok -result {wrong # args: should be "coroutine name cmd ?arg ...?"
+    while executing
+"coroutine"
+    invoked from within
+"slave invokehidden coroutine"}
 
 test interp-21.1 {interp hidden} {
     interp hidden {}
@@ -3601,10 +3615,10 @@ test interp-38.3 {interp debug wrong args} -body {
 } -returnCodes {
     error
 } -result {wrong # args: should be "interp debug path ?-frame ?bool??"}
-test interp-38.4 {interp debug basic setup} -body {
+test interp-38.4 {interp debug basic setup} -constraints {!singleTestInterp} -body {
     interp debug {}
 } -result {-frame 0}
-test interp-38.5 {interp debug basic setup} -body {
+test interp-38.5 {interp debug basic setup} -constraints {!singleTestInterp} -body {
     interp debug {} -f
 } -result {0}
 test interp-38.6 {interp debug basic setup} -body {
diff --git a/tests/io.test b/tests/io.test
index 9621138..6b6ad6d 100644
--- a/tests/io.test
+++ b/tests/io.test
@@ -13,14 +13,16 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[catch {package require tcltest 2}]} {
-    puts stderr "Skipping tests in [info script].  tcltest 2 required."
-    return
+if {[lsearch [namespace children] ::tcltest] == -1} {
+    package require tcltest 2
+    namespace import -force ::tcltest::*
 }
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
 
+testConstraint testbytestring [llength [info commands testbytestring]]
+
 namespace eval ::tcl::test::io {
     namespace import ::tcltest::*
 
@@ -41,11 +43,11 @@ testConstraint fcopy            [llength [info commands fcopy]]
 testConstraint testfevent       [llength [info commands testfevent]]
 testConstraint testchannelevent [llength [info commands testchannelevent]]
 testConstraint testmainthread   [llength [info commands testmainthread]]
-testConstraint thread [expr {0 == [catch {package require Thread 2.6}]}]
+testConstraint thread [expr {0 == [catch {package require Thread 2.7-}]}]
 
 # You need a *very* special environment to do some tests.  In
 # particular, many file systems do not support large-files...
-testConstraint largefileSupport 0
+testConstraint largefileSupport [expr {$::tcl_platform(os) ne "Darwin"}]
 
 # some tests can only be run is umask is 2
 # if "umask" cannot be run, the tests will be skipped.
@@ -1449,6 +1451,105 @@ test io-12.5 {ReadChars: fileevents on partial characters} {stdio openpipe filee
     lappend x [catch {close $f} msg] $msg
     set x
 } "{} timeout {} timeout \u7266 {} eof 0 {}"
+test io-12.6 {ReadChars: too many chars read} {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) [encoding convertto utf-8 \
+                        [string repeat \uBEEF 20][string repeat . 20]]
+                return {initialize finalize watch read}
+            }
+            finalize {
+                unset index($chan) buffer($chan)
+                return
+            }
+            watch {}
+            read {
+                set n [lindex $args 1]
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                return $result
+            }
+        }
+    }
+    set c [chan create read [namespace which driver]]
+    chan configure $c -encoding utf-8
+    while {![eof $c]} {
+        read $c 15
+    }
+    close $c
+} {}
+test io-12.7 {ReadChars: too many chars read [bc5b790099]} {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) [encoding convertto utf-8 \
+                        [string repeat \uBEEF 10]....\uBEEF]
+                return {initialize finalize watch read}
+            }
+            finalize {
+                unset index($chan) buffer($chan)
+                return
+            }
+            watch {}
+            read {
+                set n [lindex $args 1]
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                return $result
+            }
+        }
+    }
+    set c [chan create read [namespace which driver]]
+    chan configure $c -encoding utf-8
+    while {![eof $c]} {
+        read $c 7
+    }
+    close $c
+} {}
+test io-12.8 {ReadChars: multibyte chars split} {
+    set f [open $path(test1) w]
+    fconfigure $f -translation binary
+    puts -nonewline $f [string repeat a 9]\xc2\xa0
+    close $f
+    set f [open $path(test1)]
+    fconfigure $f -encoding utf-8 -buffersize 10
+    set in [read $f]
+    close $f
+    scan [string index $in end] %c
+} 160
+test io-12.9 {ReadChars: multibyte chars split} {
+    set f [open $path(test1) w]
+    fconfigure $f -translation binary
+    puts -nonewline $f [string repeat a 9]\xc2
+    close $f
+    set f [open $path(test1)]
+    fconfigure $f -encoding utf-8 -buffersize 10
+    set in [read $f]
+    close $f
+    scan [string index $in end] %c
+} 194
+test io-12.10 {ReadChars: multibyte chars split} {
+    set f [open $path(test1) w]
+    fconfigure $f -translation binary
+    puts -nonewline $f [string repeat a 9]\xc2
+    close $f
+    set f [open $path(test1)]
+    fconfigure $f -encoding utf-8 -buffersize 11
+    set in [read $f]
+    close $f
+    scan [string index $in end] %c
+} 194
 
 test io-13.1 {TranslateInputEOL: cr mode} {} {
     set f [open $path(test1) w]
@@ -1563,6 +1664,45 @@ test io-13.8 {TranslateInputEOL: auto mode: \r\n} {
     close $f
     set x
 } "abcd\ndef"
+test io-13.8.1 {TranslateInputEOL: auto mode: \r\n} {
+    set f [open $path(test1) w]
+    fconfigure $f -translation lf
+    puts -nonewline $f "abcd\r\ndef"
+    close $f
+    set f [open $path(test1)]
+    fconfigure $f -translation auto
+    set x {}
+    lappend x [read $f 5]
+    lappend x [read $f]
+    close $f
+    set x
+} [list "abcd\n" "def"]
+test io-13.8.2 {TranslateInputEOL: auto mode: \r\n} {
+    set f [open $path(test1) w]
+    fconfigure $f -translation lf
+    puts -nonewline $f "abcd\r\ndef"
+    close $f
+    set f [open $path(test1)]
+    fconfigure $f -translation auto -buffersize 6
+    set x {}
+    lappend x [read $f 5]
+    lappend x [read $f]
+    close $f
+    set x
+} [list "abcd\n" "def"]
+test io-13.8.3 {TranslateInputEOL: auto mode: \r\n} {
+    set f [open $path(test1) w]
+    fconfigure $f -translation lf
+    puts -nonewline $f "abcd\r\n\r\ndef"
+    close $f
+    set f [open $path(test1)]
+    fconfigure $f -translation auto -buffersize 7
+    set x {}
+    lappend x [read $f 5]
+    lappend x [read $f]
+    close $f
+    set x
+} [list "abcd\n" "\ndef"]
 test io-13.9 {TranslateInputEOL: auto mode: \r followed by not \n} {
     set f [open $path(test1) w]
     fconfigure $f -translation lf
@@ -2771,7 +2911,7 @@ test io-29.34 {Tcl_Close, async flush on close, using sockets} {socket tempNotMa
     variable x running
     set l abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz
     proc writelots {s l} {
-	for {set i 0} {$i < 2000} {incr i} {
+	for {set i 0} {$i < 9000} {incr i} {
 	    puts $s $l
 	}
     }
@@ -2802,7 +2942,7 @@ test io-29.34 {Tcl_Close, async flush on close, using sockets} {socket tempNotMa
     close $ss
     vwait [namespace which -variable x]
     set c
-} 2000
+} 9000
 test io-29.35 {Tcl_Close vs fileevent vs multiple interpreters} {socket tempNotMac fileevent} {
     # On Mac, this test screws up sockets such that subsequent tests using port 2828
     # either cause errors or panic().
@@ -3984,6 +4124,46 @@ test io-32.11 {Tcl_Read from a pipe} {stdio openpipe} {
 } {{hello
 } {hello
 }}
+test io-32.11.1 {Tcl_Read from a pipe} {stdio openpipe} {
+    file delete $path(pipe)
+    set f1 [open $path(pipe) w]
+    puts $f1 {chan configure stdout -translation crlf}
+    puts $f1 {puts [gets stdin]}
+    puts $f1 {puts [gets stdin]}
+    close $f1
+    set f1 [open "|[list [interpreter] $path(pipe)]" r+]
+    puts $f1 hello
+    flush $f1
+    set x ""
+    lappend x [read $f1 6]
+    puts $f1 hello
+    flush $f1
+    lappend x [read $f1]
+    close $f1
+    set x
+} {{hello
+} {hello
+}}
+test io-32.11.2 {Tcl_Read from a pipe} {stdio openpipe} {
+    file delete $path(pipe)
+    set f1 [open $path(pipe) w]
+    puts $f1 {chan configure stdout -translation crlf}
+    puts $f1 {puts [gets stdin]}
+    puts $f1 {puts [gets stdin]}
+    close $f1
+    set f1 [open "|[list [interpreter] $path(pipe)]" r+]
+    puts $f1 hello
+    flush $f1
+    set x ""
+    lappend x [read $f1 6]
+    puts $f1 hello
+    flush $f1
+    lappend x [read $f1]
+    close $f1
+    set x
+} {{hello
+} {hello
+}}
 test io-32.12 {Tcl_Read, -nonewline} {
     file delete $path(test1)
     set f1 [open $path(test1) w]
@@ -4178,6 +4358,110 @@ test io-33.10 {Tcl_Gets, exercising double buffering} {
     close $f
     set y
 } 300
+test io-33.11 {TclGetsObjBinary, [10dc6daa37]} -setup {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) .......
+                return {initialize finalize watch read}
+            }
+            finalize {
+                unset index($chan) buffer($chan)
+                return
+            }
+            watch {}
+            read {
+                set n [lindex $args 1]
+		if {$n > 3} {set n 3}
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                return $result
+            }
+        }
+    }
+} -body {
+    set c [chan create read [namespace which driver]]
+    chan configure $c -translation binary -blocking 0
+    list [gets $c] [gets $c] [gets $c] [gets $c]
+} -cleanup {
+    close $c
+    rename driver {}
+} -result {{} {} {} .......}
+test io-33.12 {Tcl_GetsObj, [10dc6daa37]} -setup {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) .......
+                return {initialize finalize watch read}
+            }
+            finalize {
+                unset index($chan) buffer($chan)
+                return
+            }
+            watch {}
+            read {
+                set n [lindex $args 1]
+		if {$n > 3} {set n 3}
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                return $result
+            }
+        }
+    }
+} -body {
+    set c [chan create read [namespace which driver]]
+    chan configure $c -blocking 0
+    list [gets $c] [gets $c] [gets $c] [gets $c]
+} -cleanup {
+    close $c
+    rename driver {}
+} -result {{} {} {} .......}
+test io-33.13 {Tcl_GetsObj, [10dc6daa37]} -setup {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) [string repeat \
+                        [string repeat . 64]\n[string repeat . 25] 2]
+                return {initialize finalize watch read}
+            }
+            finalize {
+                unset index($chan) buffer($chan)
+                return
+            }
+            watch {}
+            read {
+                set n [lindex $args 1]
+                if {$n > 65} {set n 65}
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                return $result
+            }
+        }
+    }
+} -body {
+    set c [chan create read [namespace which driver]]
+    chan configure $c -blocking 0
+    list [gets $c] [gets $c] [gets $c] [gets $c] [gets $c]
+} -cleanup {
+    close $c
+    rename driver {}
+} -result [list [string repeat . 64] {} [string repeat . 89] \
+	[string repeat . 25] {}]
 
 # Test Tcl_Seek and Tcl_Tell.
 
@@ -4457,10 +4741,10 @@ test io-34.21 {Tcl_Seek and Tcl_Tell on large files} {largefileSupport} {
     puts -nonewline $f abcdef
     lappend l [tell $f]
     close $f
-    lappend l [file size $f]
+    lappend l [file size $path(test3)]
     # truncate...
     close [open $path(test3) w]
-    lappend l [file size $f]
+    lappend l [file size $path(test3)]
     set l
 } {0 6 6 4294967296 4294967302 4294967302 0}
 
@@ -4725,6 +5009,92 @@ test io-35.17 {Tcl_Eof, eof char in middle, crlf write, crlf read} {
     close $f
     list $c $l $e
 } {21 8 1}
+test io-35.18 {Tcl_Eof, eof char, cr write, crlf read} -body {
+    file delete $path(test1)
+    set f [open $path(test1) w]
+    fconfigure $f -translation cr
+    puts $f abc\ndef
+    close $f
+    set s [file size $path(test1)]
+    set f [open $path(test1) r]
+    fconfigure $f -translation crlf
+    set l [string length [set in [read $f]]]
+    set e [eof $f]
+    close $f
+    list $s $l $e [scan [string index $in end] %c]
+} -result {8 8 1 13}
+test io-35.18a {Tcl_Eof, eof char, cr write, crlf read} -body {
+    file delete $path(test1)
+    set f [open $path(test1) w]
+    fconfigure $f -translation cr -eofchar \x1a
+    puts $f abc\ndef
+    close $f
+    set s [file size $path(test1)]
+    set f [open $path(test1) r]
+    fconfigure $f -translation crlf -eofchar \x1a
+    set l [string length [set in [read $f]]]
+    set e [eof $f]
+    close $f
+    list $s $l $e [scan [string index $in end] %c]
+} -result {9 8 1 13}
+test io-35.18b {Tcl_Eof, eof char, cr write, crlf read} -body {
+    file delete $path(test1)
+    set f [open $path(test1) w]
+    fconfigure $f -translation cr -eofchar \x1a
+    puts $f {}
+    close $f
+    set s [file size $path(test1)]
+    set f [open $path(test1) r]
+    fconfigure $f -translation crlf -eofchar \x1a
+    set l [string length [set in [read $f]]]
+    set e [eof $f]
+    close $f
+    list $s $l $e [scan [string index $in end] %c]
+} -result {2 1 1 13}
+test io-35.18c {Tcl_Eof, eof char, cr write, crlf read} -body {
+    file delete $path(test1)
+    set f [open $path(test1) w]
+    fconfigure $f -translation cr
+    puts $f {}
+    close $f
+    set s [file size $path(test1)]
+    set f [open $path(test1) r]
+    fconfigure $f -translation crlf
+    set l [string length [set in [read $f]]]
+    set e [eof $f]
+    close $f
+    list $s $l $e [scan [string index $in end] %c]
+} -result {1 1 1 13}
+test io-35.19 {Tcl_Eof, eof char in middle, cr write, crlf read} -body {
+    file delete $path(test1)
+    set f [open $path(test1) w]
+    fconfigure $f -translation cr -eofchar {}
+    set i [format abc\ndef\n%cqrs\nuvw 26]
+    puts $f $i
+    close $f
+    set c [file size $path(test1)]
+    set f [open $path(test1) r]
+    fconfigure $f -translation crlf -eofchar \x1a
+    set l [string length [set in [read $f]]]
+    set e [eof $f]
+    close $f
+    list $c $l $e [scan [string index $in end] %c]
+} -result {17 8 1 13}
+test io-35.20 {Tcl_Eof, eof char in middle, cr write, crlf read} {
+    file delete $path(test1)
+    set f [open $path(test1) w]
+    fconfigure $f -translation cr -eofchar {}
+    set i [format \n%cqrsuvw 26]
+    puts $f $i
+    close $f
+    set c [file size $path(test1)]
+    set f [open $path(test1) r]
+    fconfigure $f -translation crlf -eofchar \x1a
+    set l [string length [set in [read $f]]]
+    set e [eof $f]
+    close $f
+    list $c $l $e [scan [string index $in end] %c]
+} {9 1 1 13}
 
 # Test Tcl_InputBlocked
 
@@ -4747,6 +5117,29 @@ test io-36.1 {Tcl_InputBlocked on nonblocking pipe} {stdio openpipe} {
     close $f1
     set x
 } {{} 1 hello 0 {} 1}
+test io-36.1.1 {Tcl_InputBlocked on nonblocking binary pipe} {stdio openpipe} {
+    set f1 [open "|[list [interpreter]]" r+]
+    chan configure $f1 -encoding binary -translation lf -eofchar {}
+    puts $f1 {
+	chan configure stdout -encoding binary -translation lf -eofchar {}
+	puts hello_from_pipe
+    }
+    flush $f1
+    gets $f1
+    fconfigure $f1 -blocking off -buffering full
+    puts $f1 {puts hello}
+    set x ""
+    lappend x [gets $f1]
+    lappend x [fblocked $f1]
+    flush $f1
+    after 200
+    lappend x [gets $f1]
+    lappend x [fblocked $f1]
+    lappend x [gets $f1]
+    lappend x [fblocked $f1]
+    close $f1
+    set x
+} {{} 1 hello 0 {} 1}
 test io-36.2 {Tcl_InputBlocked on blocking pipe} {stdio openpipe} {
     set f1 [open "|[list [interpreter]]" r+]
     fconfigure $f1 -buffering line
@@ -6564,11 +6957,23 @@ test io-52.4 {TclCopyChannel} {fcopy} {
     fconfigure $f1 -translation lf -blocking 0
     fconfigure $f2 -translation cr -blocking 0
     fcopy $f1 $f2 -size 40
-    set result [list [fconfigure $f1 -blocking] [fconfigure $f2 -blocking]]
+    set result [list [fblocked $f1] [fconfigure $f1 -blocking] [fconfigure $f2 -blocking]]
+    close $f1
+    close $f2
+    lappend result [file size $path(test1)]
+} {0 0 0 40}
+test io-52.4.1 {TclCopyChannel} {fcopy} {
+    file delete $path(test1)
+    set f1 [open $thisScript]
+    set f2 [open $path(test1) w]
+    fconfigure $f1 -translation lf -blocking 0 -buffersize 10000000
+    fconfigure $f2 -translation cr -blocking 0
+    fcopy $f1 $f2 -size 40
+    set result [list [fblocked $f1] [fconfigure $f1 -blocking] [fconfigure $f2 -blocking]]
     close $f1
     close $f2
     lappend result [file size $path(test1)]
-} {0 0 40}
+} {0 0 0 40}
 test io-52.5 {TclCopyChannel, all} {fcopy} {
     file delete $path(test1)
     set f1 [open $thisScript]
@@ -6754,6 +7159,150 @@ test io-52.11 {TclCopyChannel & encodings} {fcopy} {
     file size $path(kyrillic.txt)
 } 3
 
+test io-52.12 {coverage of -translation auto} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\rhijklmn\nopqrstu\r\nvwxyz
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -buffersize 8
+    set out [open $path(test2) w]
+    chan configure $out -translation lf
+    fcopy $in $out
+    close $in
+    close $out
+    file size $path(test2)
+} 29
+test io-52.13 {coverage of -translation cr} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\rhijklmn\nopqrstu\r\nvwxyz
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -buffersize 8 -translation cr
+    set out [open $path(test2) w]
+    chan configure $out -translation lf
+    fcopy $in $out
+    close $in
+    close $out
+    file size $path(test2)
+} 30
+test io-52.14 {coverage of -translation crlf} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\rhijklmn\nopqrstu\r\nvwxyz
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -buffersize 8 -translation crlf
+    set out [open $path(test2) w]
+    chan configure $out -translation lf
+    fcopy $in $out
+    close $in
+    close $out
+    file size $path(test2)
+} 29
+test io-52.14.1 {coverage of -translation crlf} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\rhijklmn\nopqrstu\r\nvwxyz
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -buffersize 8 -translation crlf
+    set out [open $path(test2) w]
+    fcopy $in $out -size 2
+    close $in
+    close $out
+    file size $path(test2)
+} 2
+test io-52.14.2 {coverage of -translation crlf} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\rhijklmn\nopqrstu\r\nvwxyz
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -translation crlf
+    set out [open $path(test2) w]
+    fcopy $in $out -size 9
+    close $in
+    close $out
+    file size $path(test2)
+} 9
+test io-52.15 {coverage of -translation crlf} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\r
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -buffersize 8 -translation crlf
+    set out [open $path(test2) w]
+    fcopy $in $out
+    close $in
+    close $out
+    file size $path(test2)
+} 8
+test io-52.16 {coverage of eofChar handling} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\rhijklmn\nopqrstu\r\nvwxyz
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -buffersize 8 -translation lf -eofchar a
+    set out [open $path(test2) w]
+    fcopy $in $out
+    close $in
+    close $out
+    file size $path(test2)
+} 0
+test io-52.17 {coverage of eofChar handling} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\rhijklmn\nopqrstu\r\nvwxyz
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -buffersize 8 -translation lf -eofchar d
+    set out [open $path(test2) w]
+    fcopy $in $out
+    close $in
+    close $out
+    file size $path(test2)
+} 3
+test io-52.18 {coverage of eofChar handling} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\rhijklmn\nopqrstu\r\nvwxyz
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -buffersize 8 -translation crlf -eofchar h
+    set out [open $path(test2) w]
+    fcopy $in $out
+    close $in
+    close $out
+    file size $path(test2)
+} 8
+test io-52.19 {coverage of eofChar handling} {
+    file delete $path(test1) $path(test2)
+    set out [open $path(test1) wb]
+    chan configure $out -translation lf
+    puts -nonewline $out abcdefg\rhijklmn\nopqrstu\r\nvwxyz
+    close $out
+    set in [open $path(test1)]
+    chan configure $in -buffersize 10 -translation crlf -eofchar h
+    set out [open $path(test2) w]
+    fcopy $in $out
+    close $in
+    close $out
+    file size $path(test2)
+} 8
+
 test io-53.1 {CopyData} {fcopy} {
     file delete $path(test1)
     set f1 [open $thisScript]
@@ -6823,17 +7372,12 @@ test io-53.4 {CopyData: background write overflow} {stdio unix openpipe fileeven
     for {set x 0} {$x < 12} {incr x} {
 	append big $big
     }
-    file delete $path(test1)
     file delete $path(pipe)
     set f1 [open $path(pipe) w]
     puts $f1 {
 	puts ready
 	fcopy stdin stdout -command { set x }
 	vwait x
-	set f [open $path(test1) w]
-	fconfigure $f -translation lf
-	puts $f "done"
-	close $f
     }
     close $f1
     set f1 [open "|[list [interpreter] $path(pipe)]" r+]
@@ -6841,11 +7385,10 @@ test io-53.4 {CopyData: background write overflow} {stdio unix openpipe fileeven
     fconfigure $f1 -blocking 0
     puts $f1 $big
     flush $f1
-    after 500
     set result ""
     fileevent $f1 read [namespace code {
 	append result [read $f1 1024]
-	if {[string length $result] >= [string length $big]} {
+	if {[string length $result] >= [string length $big]+1} {
 	    set x done
 	}
     }]
@@ -6854,6 +7397,38 @@ test io-53.4 {CopyData: background write overflow} {stdio unix openpipe fileeven
     set big {}
     set x
 } done
+test io-53.4.1 {Bug 894da183c8} {stdio fcopy} {
+    set big bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n
+    variable x
+    for {set x 0} {$x < 12} {incr x} {
+	append big $big
+    }
+    file delete $path(pipe)
+    set f1 [open $path(pipe) w]
+    puts $f1 [list file delete $path(test1)]
+    puts $f1 {
+	puts ready
+	set f [open io-53.4.1 w]
+	chan configure $f -translation lf
+	fcopy stdin $f -command { set x }
+	vwait x
+	close $f
+    }
+    puts $f1 "close \[[list open $path(test1) w]]"
+    close $f1
+    set f1 [open "|[list [interpreter] $path(pipe)]" r+]
+    set result [gets $f1]
+    fconfigure $f1 -blocking 0 -buffersize 125000 -translation lf
+    puts $f1 $big
+    fconfigure $f1 -blocking 1
+    close $f1
+    set big {}
+    while {[catch {glob $path(test1)}]} {after 50}
+    file delete $path(test1)
+    set check [file size io-53.4.1]
+    file delete io-53.4.1
+    set check
+} 266241
 set result {}
 proc FcopyTestAccept {sock args} {
     after 1000 "close $sock"
@@ -7223,6 +7798,211 @@ test io-53.11 {Bug 2895565} -setup {
     removeFile out
     removeFile in
 } -result {40 bytes copied}
+test io-53.12 {CopyData: foreground short reads, aka bug 3096275} {stdio unix openpipe fcopy} {
+    file delete $path(pipe)
+    set f1 [open $path(pipe) w]
+    puts -nonewline $f1 {
+	fconfigure stdin -translation binary -blocking 0
+	fconfigure stdout -buffering none -translation binary
+	fcopy stdin stdout
+    }
+    close $f1
+    set f1 [open "|[list [interpreter] $path(pipe)]" r+]
+    fconfigure $f1 -translation binary -buffering none
+    puts -nonewline $f1 A
+    after 2000 {set ::done timeout}
+    fileevent $f1 readable {set ::done ok}
+    vwait ::done
+    set ch [read $f1 1]
+    close $f1
+    list $::done $ch
+} {ok A}
+test io-53.13 {TclCopyChannel: read error reporting} -setup {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                return {initialize finalize watch read}
+            }
+            finalize {
+                return
+            }
+            watch {}
+            read {
+		error FAIL
+            }
+        }
+    }
+    set outFile [makeFile {} out]
+} -body {
+    set in [chan create read [namespace which driver]]
+    chan configure $in -translation binary
+    set out [open $outFile wb]
+    chan copy $in $out
+} -cleanup {
+    catch {close $in}
+    catch {close $out}
+    removeFile out
+    rename driver {}
+} -result {error reading "*": *} -returnCodes error -match glob
+test io-53.14 {TclCopyChannel: write error reporting} -setup {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                return {initialize finalize watch write}
+            }
+            finalize {
+                return
+            }
+            watch {}
+            write {
+                error FAIL
+            }
+        }
+    }
+    set inFile [makeFile {aaa} in]
+} -body {
+    set in [open $inFile rb]
+    set out [chan create write [namespace which driver]]
+    chan configure $out -translation binary
+    chan copy $in $out
+} -cleanup {
+    catch {close $in}
+    catch {close $out}
+    removeFile in
+    rename driver {}
+} -result {error writing "*": *} -returnCodes error -match glob
+test io-53.15 {[ed29c4da21] DoRead: fblocked seen as error} -setup {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        variable blocked
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) [encoding convertto utf-8 \
+                        [string repeat a 100]]
+                set blocked($chan) 1
+                return {initialize finalize watch read}
+            }
+            finalize {
+                unset index($chan) buffer($chan) blocked($chan)
+                return
+            }
+            watch {}
+            read {
+                if {$blocked($chan)} {
+                    set blocked($chan) [expr {!$blocked($chan)}]
+                    return -code error EAGAIN
+                }
+                set n [lindex $args 1]
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                return $result
+            }
+        }
+    }
+    set c [chan create read [namespace which driver]]
+    chan configure $c -encoding utf-8
+    set out [makeFile {} out]
+    set outChan [open $out w]
+    chan configure $outChan -encoding utf-8
+} -body {
+    chan copy $c $outChan
+} -cleanup {
+    close $outChan
+    close $c
+    removeFile out
+} -result 100
+test io-53.16 {[ed29c4da21] MBRead: fblocked seen as error} -setup {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        variable blocked
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) [encoding convertto utf-8 \
+                        [string repeat a 100]]
+                set blocked($chan) 1
+                return {initialize finalize watch read}
+            }
+            finalize {
+                unset index($chan) buffer($chan) blocked($chan)
+                return
+            }
+            watch {}
+            read {
+                if {$blocked($chan)} {
+                    set blocked($chan) [expr {!$blocked($chan)}]
+                    return -code error EAGAIN
+                }
+                set n [lindex $args 1]
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                return $result
+            }
+        }
+    }
+    set c [chan create read [namespace which driver]]
+    chan configure $c -encoding utf-8 -translation lf
+    set out [makeFile {} out]
+    set outChan [open $out w]
+    chan configure $outChan -encoding utf-8 -translation lf
+} -body {
+    chan copy $c $outChan
+} -cleanup {
+    close $outChan
+    close $c
+    removeFile out
+} -result 100
+test io-53.17 {[7c187a3773] MBWrite: proper inQueueTail handling} -setup {
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) [encoding convertto utf-8 \
+                        line\n[string repeat a 100]line\n]
+                return {initialize finalize watch read}
+            }
+            finalize {
+                unset index($chan) buffer($chan)
+                return
+            }
+            watch {}
+            read {
+                set n [lindex $args 1]
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                return $result
+            }
+        }
+    }
+    set c [chan create read [namespace which driver]]
+    chan configure $c -encoding utf-8 -translation lf -buffersize 107
+    set out [makeFile {} out]
+    set outChan [open $out w]
+    chan configure $outChan -encoding utf-8 -translation lf
+} -body {
+    list [gets $c] [chan copy $c $outChan -size 100] [gets $c]
+} -cleanup {
+    close $outChan
+    close $c
+    removeFile out
+} -result {line 100 line}
 
 test io-54.1 {Recursive channel events} {socket fileevent} {
     # This test checks to see if file events are delivered during recursive
@@ -7473,12 +8253,12 @@ test io-59.1 {Thread reference of channels} {testmainthread testchannel} {
     string equal $result [testmainthread]
 } {1}
 
-test io-60.1 {writing illegal utf sequences} {openpipe fileevent} {
+test io-60.1 {writing illegal utf sequences} {openpipe fileevent testbytestring} {
     # This test will hang in older revisions of the core.
 
     set out [open $path(script) w]
     puts $out {
-	puts [encoding convertfrom identity \xe2]
+	puts [testbytestring \xe2]
 	exit 1
     }
     proc readit {pipe} {
@@ -7788,6 +8568,64 @@ test io-73.2 {channel Tcl_Obj SetChannelFromAny, bug 2407783} -setup {
     close $f
 } -result {1 {can not find channel named "@@"}}
 
+test io-73.3 {[5adc350683] [gets] after EOF} -setup {
+    set fn [makeFile {} io-73.3]
+    set rfd [open $fn r]
+    set wfd [open $fn a]
+    chan configure $wfd -buffering line
+    read $rfd
+} -body {
+    set result [eof $rfd]
+    puts $wfd "more data"
+    lappend result [eof $rfd]
+    lappend result [gets $rfd]
+    lappend result [eof $rfd]
+    lappend result [gets $rfd]
+    lappend result [eof $rfd]
+} -cleanup {
+    close $wfd
+    close $rfd
+    removeFile io-73.3
+} -result {1 1 {more data} 0 {} 1}
+
+test io-73.4 {[5adc350683] [read] after EOF} -setup {
+    set fn [makeFile {} io-73.4]
+    set rfd [open $fn r]
+    set wfd [open $fn a]
+    chan configure $wfd -buffering line
+    read $rfd
+} -body {
+    set result [eof $rfd]
+    puts $wfd "more data"
+    lappend result [eof $rfd]
+    lappend result [read $rfd]
+    lappend result [eof $rfd]
+} -cleanup {
+    close $wfd
+    close $rfd
+    removeFile io-73.4
+} -result {1 1 {more data
+} 1}
+
+test io-73.5 {effect of eof on encoding end flags} -setup {
+    set fn [makeFile {} io-73.5]
+    set rfd [open $fn r]
+    set wfd [open $fn a]
+    chan configure $wfd -buffering none -translation binary
+    chan configure $rfd -buffersize 5 -encoding utf-8
+    read $rfd
+} -body {
+    set result [eof $rfd]
+    puts -nonewline $wfd "more\u00c2\u00a0data"
+    lappend result [eof $rfd]
+    lappend result [read $rfd]
+    lappend result [eof $rfd]
+} -cleanup {
+    close $wfd
+    close $rfd
+    removeFile io-73.5
+} -result [list 1 1 more\u00a0data 1]
+
 # ### ### ### ######### ######### #########
 
 # cleanup
diff --git a/tests/ioCmd.test b/tests/ioCmd.test
index 5eb0206..4fbc380 100644
--- a/tests/ioCmd.test
+++ b/tests/ioCmd.test
@@ -24,7 +24,7 @@ catch [list package require -exact Tcltest [info patchlevel]]
 # Custom constraints used in this file
 testConstraint fcopy		[llength [info commands fcopy]]
 testConstraint testchannel	[llength [info commands testchannel]]
-testConstraint thread [expr {0 == [catch {package require Thread 2.6}]}]
+testConstraint thread [expr {0 == [catch {package require Thread 2.7-}]}]
 
 #----------------------------------------------------------------------
 
@@ -294,7 +294,7 @@ test iocmd-8.15.1 {fconfigure command / tcp channel} -constraints {socket unixOr
     close $srv
     unset cli srv port
     rename iocmdSRV {}
-} -returnCodes error -result {bad option "-blah": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, -translation, -peername, or -sockname}
+} -returnCodes error -result {bad option "-blah": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, -translation, -connecting, -peername, or -sockname}
 test iocmd-8.16 {fconfigure command / tcp channel} -constraints socket -setup {
     set srv [socket -server iocmdSRV -myaddr 127.0.0.1 0]
     set port [lindex [fconfigure $srv -sockname] 2]
@@ -639,7 +639,7 @@ test iocmd-15.9 {Tcl_FcopyObjCmd} {fcopy} {
 } "1 {channel \"$rfile\" wasn't opened for writing}"
 test iocmd-15.10 {Tcl_FcopyObjCmd} {fcopy} {
     list [catch {fcopy $rfile $wfile foo bar} msg] $msg
-} {1 {bad switch "foo": must be -size or -command}}
+} {1 {bad option "foo": must be -size or -command}}
 test iocmd-15.11 {Tcl_FcopyObjCmd} {fcopy} {
     list [catch {fcopy $rfile $wfile -size foo} msg] $msg
 } {1 {expected integer but got "foo"}}
@@ -793,6 +793,90 @@ test iocmd-21.19 {chan create, init failure -> no channel, no finalize} -match g
     rename foo {}
     set res
 } -result {{} {initialize rc* {read write}} 1 {*all required methods*} {}}
+test iocmd-21.20 {Bug 88aef05cda} -setup {
+    proc foo {method chan args} {
+	switch -- $method blocking {
+	    chan configure $chan -blocking [lindex $args 0]
+	    return
+	} initialize {
+	    return {initialize finalize watch blocking read write
+		    configure cget cgetall}
+	} finalize {
+	    return
+	}
+    }
+    set ch [chan create {read write} foo]
+} -body {
+    list [catch {chan configure $ch -blocking 0} m] $m
+} -cleanup {
+    close $ch
+    rename foo {}
+} -match glob -result {1 {*nested eval*}}
+test iocmd-21.21 {[close] in [read] segfaults} -setup {
+    proc foo {method chan args} {
+	switch -- $method initialize {
+	    return {initialize finalize watch read}
+	} finalize {} watch {} read {
+	    close $chan
+	    return a
+	}
+    }
+    set ch [chan create read foo]
+} -body {
+    read $ch 0
+} -cleanup {
+    close $ch
+    rename foo {}
+} -result {}
+test iocmd-21.22 {[close] in [read] segfaults} -setup {
+    proc foo {method chan args} {
+	switch -- $method initialize {
+	    return {initialize finalize watch read}
+	} finalize {} watch {} read {
+	    catch {close $chan}
+	    return a
+	}
+    }
+    set ch [chan create read foo]
+} -body {
+    read $ch 1
+} -returnCodes error -cleanup {
+    catch {close $ch}
+    rename foo {}
+} -match glob -result {*invalid argument*}
+test iocmd-21.23 {[close] in [gets] segfaults} -setup {
+    proc foo {method chan args} {
+	switch -- $method initialize {
+	    return {initialize finalize watch read}
+	} finalize {} watch {} read {
+	    catch {close $chan}
+	    return \n
+	}
+    }
+    set ch [chan create read foo]
+} -body {
+    gets $ch
+} -cleanup {
+    catch {close $ch}
+    rename foo {}
+} -result {}
+test iocmd-21.24 {[close] in binary [gets] segfaults} -setup {
+    proc foo {method chan args} {
+	switch -- $method initialize {
+	    return {initialize finalize watch read}
+	} finalize {} watch {} read {
+	    catch {close $chan}
+	    return \n
+	}
+    }
+    set ch [chan create read foo]
+} -body {
+    chan configure $ch -translation binary
+    gets $ch
+} -cleanup {
+    catch {close $ch}
+    rename foo {}
+} -result {}
 
 # --- --- --- --------- --------- ---------
 # Helper commands to record the arguments to handler methods.
@@ -1051,6 +1135,20 @@ test iocmd-23.10 {chan read, EAGAIN means no data, yet no eof either} -match glo
     rename foo {}
     unset res
 } -result {{read rc* 4096} {} 0}
+test iocmd-23.11 {chan read, close pulls the rug out} -match glob -body {
+    set res {}
+    proc foo {args} {
+	oninit; onfinal; track
+	set args [lassign $args sub id]
+	if {$sub ne "read"} {return}
+	close $id
+	return {}
+    }
+    set c [chan create {r} foo]
+    note [read $c]
+    rename foo {}
+    set res
+} -result {{read rc* 4096} {}}
 
 # --- === *** ###########################
 # method write
@@ -1978,13 +2076,13 @@ test iocmd-32.1 {origin interpreter of moved channel destroyed during access} -m
 	proc foo {args} {
 	    oninit; onfinal; track;
 	    # destroy interpreter during channel access
-	    # Actually not possible for an interp to destroy itself.
-	    interp delete {}
-	    return}
+	    suicide
+	}
 	set chan [chan create {r w} foo]
 	fconfigure $chan -buffering none
 	set chan
     }]
+    interp alias $ida suicide {} interp delete $ida
 
     # Move channel to 2nd thread.
     interp eval $ida [list testchannel cut    $chan]
@@ -2002,8 +2100,7 @@ test iocmd-32.1 {origin interpreter of moved channel destroyed during access} -m
 	set res
     }]
     set res
-} -constraints {testchannel impossible} \
-    -result {Owner lost}
+} -constraints {testchannel} -result {Owner lost}
 
 test iocmd-32.2 {delete interp of reflected chan} {
     # Bug 3034840
@@ -2651,10 +2748,9 @@ test iocmd.tf-24.17.bug3522560 {postevent for transfered channel} \
 	    init* {set ret {initialize finalize watch read}}
 	    watch {
 		set l [lindex $args 0]
+		catch {after cancel $::timer}
 		if {[llength $l]} {
 		    set ::timer [after $::drive [list POST $ch]]
-		} else {
-		    after cancel $::timer
 		}
 	    }
 	    finalize {
@@ -2717,7 +2813,9 @@ test iocmd.tf-24.17.bug3522560 {postevent for transfered channel} \
 	    update
 	}
 	LOG THREAD-LOOP-DONE
-	thread::exit
+	#thread::exit
+	# Thread exits cause leaks;  Use clean thread shutdown
+	set forever yourGirl
     }
 
     LOG MAIN_WAITING
@@ -2726,10 +2824,11 @@ test iocmd.tf-24.17.bug3522560 {postevent for transfered channel} \
 
     set res
 } -cleanup {
+    after cancel $::timer
     rename LOG {}
     rename POST {}
     rename HANDLER {}
-    unset beat drive data forever res tid ch
+    unset beat drive data forever res tid ch timer
 } -match glob \
     -result {{initialize rc* read} {watch rc* read} {read rc* 4096} {watch rc* {}} {watch rc* read} {read rc* 4096} {watch rc* {}} {finalize rc*}}
 
diff --git a/tests/ioTrans.test b/tests/ioTrans.test
index 7027ec1..e179eab 100644
--- a/tests/ioTrans.test
+++ b/tests/ioTrans.test
@@ -21,7 +21,7 @@ catch [list package require -exact Tcltest [info patchlevel]]
 
 # Custom constraints used in this file
 testConstraint testchannel [llength [info commands testchannel]]
-testConstraint thread [expr {0 == [catch {package require Thread 2.6}]}]
+testConstraint thread [expr {0 == [catch {package require Thread 2.7-}]}]
 
 # testchannel cut|splice  Both needed to test the reflection in threads.
 # thread::send
@@ -539,7 +539,46 @@ test iortrans-4.8 {chan read, read, bug 2921116} -setup {
     tempdone
     rename foo {}
 } -result {{read rt* {test data
-}} file*}
+}} {}}
+test iortrans-4.8.1 {chan read, bug 721ec69271} -setup {
+    set res {}
+} -match glob -body {
+    proc foo {fd args} {
+	handle.initialize
+	handle.finalize
+	lappend ::res $args
+	# Kill and recreate transform while it is operating
+	chan pop $fd
+	chan push $fd [list foo $fd]
+    }
+    set c [chan push [set c [tempchan]] [list foo $c]]
+    chan configure $c -buffersize 2
+    lappend res [read $c]
+} -cleanup {
+    tempdone
+    rename foo {}
+} -result {{read rt* te} {read rt* st} {read rt* { d}} {read rt* at} {read rt* {a
+}} {}}
+test iortrans-4.8.2 {chan read, bug 721ec69271} -setup {
+    set res {}
+} -match glob -body {
+    proc foo {fd args} {
+	handle.initialize
+	handle.finalize
+	lappend ::res $args
+	# Kill and recreate transform while it is operating
+	chan pop $fd
+	chan push $fd [list foo $fd]
+	return x
+    }
+    set c [chan push [set c [tempchan]] [list foo $c]]
+    chan configure $c -buffersize 1
+    lappend res [read $c]
+} -cleanup {
+    tempdone
+    rename foo {}
+} -result {{read rt* t} {read rt* e} {read rt* s} {read rt* t} {read rt* { }} {read rt* d} {read rt* a} {read rt* t} {read rt* a} {read rt* {
+}} {}}
 test iortrans-4.9 {chan read, gets, bug 2921116} -setup {
     set res {}
 } -match glob -body {
@@ -557,7 +596,180 @@ test iortrans-4.9 {chan read, gets, bug 2921116} -setup {
     tempdone
     rename foo {}
 } -result {{read rt* {test data
-}} file*}
+}} {}}
+
+# Driver for a base channel that emits several short "files"
+# with each terminated by a fleeting EOF
+    proc driver {cmd args} {
+        variable ::tcl::buffer
+        variable ::tcl::index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) .....
+                return {initialize finalize watch read}
+            }
+            finalize {
+                if {![info exists index($chan)]} {return}
+                unset index($chan) buffer($chan)
+		array unset index
+		array unset buffer
+                return
+            }
+            watch {}
+            read {
+                set n [lindex $args 1]
+                if {![info exists index($chan)]} {
+                    driver initialize $chan
+                }
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                if {[string length $result] == 0} {
+                    driver finalize $chan
+                }
+                return $result
+            }
+        }
+    }
+
+# Channel read transform that is just the identity - pass all through
+    proc idxform {cmd handle args} {
+      switch -- $cmd {
+        initialize {
+            return {initialize finalize read}
+        }
+        finalize {
+            return
+        }
+        read {
+            lassign $args buffer
+            return $buffer
+        }
+      }
+    }
+
+# Test that all EOFs pass through full xform stack.  Proper data boundaries.
+# Check robustness against buffer sizes.
+test iortrans-4.10 {[5adbc350683] chan read, handle fleeting EOF} -body {
+    set chan [chan push [chan create read driver] idxform]
+    list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+        [read $chan] [eof $chan]
+} -cleanup {
+    close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+test iortrans-4.10.1 {[5adbc350683] chan read, handle fleeting EOF} -body {
+    set chan [chan push [chan create read driver] idxform]
+    chan configure $chan -buffersize 3
+    list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+        [read $chan] [eof $chan]
+} -cleanup {
+    close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+test iortrans-4.10.2 {[5adbc350683] chan read, handle fleeting EOF} -body {
+    set chan [chan push [chan create read driver] idxform]
+    chan configure $chan -buffersize 5
+    list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+        [read $chan] [eof $chan]
+} -cleanup {
+    close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+
+rename idxform {}
+
+# Channel read transform that delays the data and always returns something
+    proc delayxform {cmd handle args} {
+      variable store
+      switch -- $cmd {
+        initialize {
+	    set store($handle) {}
+            return {initialize finalize read drain}
+        }
+        finalize {
+	    unset store($handle)
+            return
+        }
+        read {
+            lassign $args buffer
+	    if {$store($handle) eq {}} {
+		set reply [string index $buffer 0]
+		set store($handle) [string range $buffer 1 end]
+	    } else {
+		set reply $store($handle)
+		set store($handle) $buffer
+	    }
+            return $reply
+        }
+	drain {
+	    delayxform read $handle {}
+	}
+      }
+    }
+
+# Test that all EOFs pass through full xform stack.  Proper data boundaries.
+# Check robustness against buffer sizes.
+test iortrans-4.11 {[5adbc350683] chan read, handle fleeting EOF} -body {
+    set chan [chan push [chan create read driver] delayxform]
+    list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+        [read $chan] [eof $chan]
+} -cleanup {
+    close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+test iortrans-4.11.1 {[5adbc350683] chan read, handle fleeting EOF} -body {
+    set chan [chan push [chan create read driver] delayxform]
+    chan configure $chan -buffersize 3
+    list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+        [read $chan] [eof $chan]
+} -cleanup {
+    close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+test iortrans-4.11.2 {[5adbc350683] chan read, handle fleeting EOF} -body {
+    set chan [chan push [chan create read driver] delayxform]
+    chan configure $chan -buffersize 5
+    list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+        [read $chan] [eof $chan]
+} -cleanup {
+    close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+
+    rename delayxform {}
+
+# Channel read transform that delays the data and may return {}
+    proc delay2xform {cmd handle args} {
+      variable store
+      switch -- $cmd {
+        initialize {
+	    set store($handle) {}
+            return {initialize finalize read drain}
+        }
+        finalize {
+	    unset store($handle)
+            return
+        }
+        read {
+            lassign $args buffer
+		set reply $store($handle)
+		set store($handle) $buffer
+            return $reply
+        }
+	drain {
+	    delay2xform read $handle {}
+	}
+      }
+    }
+
+test iortrans-4.12 {[5adbc350683] chan read, handle fleeting EOF} -body {
+    set chan [chan push [chan create read driver] delay2xform]
+    list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+        [read $chan] [eof $chan]
+} -cleanup {
+    close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+
+    rename delay2xform {}
+    rename driver {}
+
 
 # --- === *** ###########################
 # method write (via puts)
@@ -995,22 +1207,24 @@ test iortrans-11.1 {origin interpreter of moved transform destroyed during acces
     # Magic to get the test* commands in the slaves
     load {} Tcltest $ida
     load {} Tcltest $idb
-} -constraints {testchannel impossible} -match glob -body {
+} -constraints {testchannel} -match glob -body {
     # Set up channel in thread
     set chan [interp eval $ida $helperscript]
+    interp eval $ida [list ::variable tempchan [tempchan]]
+    interp transfer {} $::tempchan $ida
     set chan [interp eval $ida {
 	proc foo {args} {
 	    handle.initialize clear drain flush limit? read write
 	    handle.finalize
 	    lappend ::res $args
-	    # Destroy interpreter during channel access.  Actually not
-	    # possible for an interp to destroy itself.
-	    interp delete {}
-	    return}
-	set chan [chan push [tempchan] foo]
+	    # Destroy interpreter during channel access.
+	    suicide
+	}
+	set chan [chan push $tempchan foo]
 	fconfigure $chan -buffering none
 	set chan
     }]
+    interp alias $ida suicide {} interp delete $ida
     # Move channel to 2nd thread, transform goes with it.
     interp eval $ida [list testchannel cut $chan]
     interp eval $idb [list testchannel splice $chan]
diff --git a/tests/iogt.test b/tests/iogt.test
index d4c31d2..1ed89f7 100644
--- a/tests/iogt.test
+++ b/tests/iogt.test
@@ -220,6 +220,36 @@ proc id_fulltrail {var op data} {
     return $res
 }
 
+proc id_torture {chan op data} {
+    switch -- $op {
+	create/write -
+	create/read  -
+	delete/write -
+	delete/read  -
+	clear_read   {;#ignore}
+	flush/write -
+	flush/read  {}
+	write       {
+	    global level
+	    if {$level} {
+		return
+	    }
+	    incr level
+	    testchannel unstack $chan
+	    testchannel transform $chan \
+		-command [namespace code [list id_torture $chan]]
+	    return $data
+	}
+	read        {
+	    testchannel unstack $chan
+	    testchannel transform $chan \
+		-command [namespace code [list id_torture $chan]]
+	    return $data
+	}
+	query/maxRead {return -1}
+    }
+}
+
 proc counter {var op data} {
     namespace upvar [namespace current] $var n
 
@@ -280,7 +310,7 @@ proc counter_audit {var vtrail op data} {
 }
 
 proc rblocks {var vtrail n op data} {
-    namespace upvar [namespace current] $var n $vtrail trail
+    namespace upvar [namespace current] $var buf $vtrail trail
 
     set res {}
 
@@ -326,6 +356,11 @@ proc audit_ops {var -attach channel} {
 proc audit_flow {var -attach channel} {
     testchannel transform $channel -command [namespace code [list id_fulltrail $var]]
 }
+
+proc torture {-attach channel} {
+    testchannel transform $channel -command [namespace code [list id_torture $channel]]
+}
+
 proc stopafter {var n -attach channel} {
     namespace upvar [namespace current] $var vn
     set vn $n
@@ -445,6 +480,7 @@ query/maxRead
 read
 query/maxRead
 flush/read
+query/maxRead
 delete/read
 --------
 create/write
@@ -491,6 +527,7 @@ read {
 }
 query/maxRead {} -1
 flush/read {} {}
+query/maxRead {} -1
 delete/read {} *ignored*
 --------
 create/write {} *ignored*
@@ -542,15 +579,35 @@ write %^&*()_+-= %^&*()_+-=
 write {
 } {
 }
+query/maxRead {} -1
 delete/read {} *ignored*
 flush/write {} {}
 delete/write {} *ignored*}
 
+test iogt-2.4 {basic I/O, mixed trail} {testchannel} {
+    set fh [open $path(dummy) r]
+    torture -attach $fh
+    chan configure $fh -buffersize 2
+    set x [read $fh]
+    testchannel unstack $fh
+    close   $fh
+    set x
+} {}
+test iogt-2.5 {basic I/O, mixed trail} {testchannel} {
+    set ::level 0
+    set fh [open $path(dummyout) w]
+    torture -attach $fh
+    puts -nonewline $fh abcdef
+    flush $fh
+    testchannel unstack $fh
+    close   $fh
+} {}
+
 test iogt-3.0 {Tcl_Channel valid after stack/unstack, fevent handling} -setup {
     proc DoneCopy {n {err {}}} {
 	variable copy 1
     }
-} -constraints {testchannel hangs} -body {
+} -constraints {testchannel knownBug} -body {
     # This test to check the validity of aquired Tcl_Channel references is not
     # possible because even a backgrounded fcopy will immediately start to
     # copy data, without waiting for the event loop. This is done only in case
@@ -561,6 +618,7 @@ test iogt-3.0 {Tcl_Channel valid after stack/unstack, fevent handling} -setup {
     # delay, causing the fcopy to underflow immediately.
     set fin [open $path(dummy) r]
     fevent 1000 500 {20 20 20 10 1 1} {
+	variable copy
 	close $fin
 	set fout [open dummyout w]
 	flush $sock;	# now, or fcopy will error us out
@@ -594,23 +652,30 @@ test iogt-4.0 {fileevent readable, after transform} -setup {
     proc Done {args} {
 	variable stop 1
     }
-} -constraints {testchannel hangs} -body {
+    proc Get {sock} {
+        variable trail
+        variable got
+        if {[eof $sock]} {
+            Done
+            lappend trail "xxxxxxxxxxxxx"
+            close $sock
+            return
+        }
+        lappend trail "vvvvvvvvvvvvv"
+        lappend trail "\tgot: [lappend got "\[\[[read $sock]\]\]"]"
+        lappend trail "============="
+        #puts stdout $__ ; flush stdout
+        #read $sock
+    }
+
+} -constraints {testchannel knownBug} -body {
     fevent 1000 500 {20 20 20 10 1} {
+	variable stop
 	audit_flow trail -attach $sock
 	rblocks_t rbuf trail 23 -attach $sock
-	fileevent $sock readable [namespace code {
-	    if {[eof $sock]} {
-		Done
-		lappend trail "xxxxxxxxxxxxx"
-		close $sock
-	    } else {
-		lappend trail "vvvvvvvvvvvvv"
-		lappend trail "\tgot: [lappend got "\[\[[read $sock]\]\]"]"
-		lappend trail "============="
-		#puts stdout $__; flush stdout
-		#read $sock
-	    }
-	}]
+
+	fileevent $sock readable [namespace code [list Get $sock]]
+
 	flush $sock;		# Now, or fcopy will error us out
 	# But the 1 second delay should be enough to initialize everything
 	# else here.
@@ -619,6 +684,7 @@ test iogt-4.0 {fileevent readable, after transform} -setup {
     join [list [join $got \n] ~~~~~~~~ [join $trail \n]] \n
 } -cleanup {
     rename Done {}
+    rename Get {}
 } -result {[[]]
 [[abcdefghijklmnopqrstuvw]]
 [[xyz0123456789,./?><;'\|]]
@@ -706,7 +772,7 @@ test iogt-5.0 {EOF simulation} -setup {
     set fin [open $path(dummy) r]
     set fout [open $path(dummyout) w]
     set trail [list]
-} -constraints {testchannel unknownFailure} -result {
+} -constraints {testchannel knownBug} -result {
     audit_flow trail -attach $fin
     stopafter_audit d trail 20 -attach $fin
     audit_flow trail -attach $fout
@@ -785,6 +851,15 @@ test iogt-6.0 {Push back} -constraints testchannel -body {
     close $f
 } -result {xxx}
 test iogt-6.1 {Push back and up} -constraints {testchannel knownBug} -body {
+
+    # This test demonstrates the bug/misfeature in the stacked
+    # channel implementation that data can be discarded if it is
+    # read into the buffers of one channel in the stack, and then
+    # that channel is popped before anything above it reads.
+    #
+    # This bug can be worked around by always setting -buffersize
+    # to 1, but who wants to do that?
+
     set f [open $path(dummy) r]
     # contents of dummy = "abcdefghi..."
     read $f 3;		# skip behind "abc"
@@ -796,6 +871,80 @@ test iogt-6.1 {Push back and up} -constraints {testchannel knownBug} -body {
     close $f
 } -result {xxxghi}
 
+
+# Driver for a base channel that emits several short "files"
+# with each terminated by a fleeting EOF
+    proc driver {cmd args} {
+        variable buffer
+        variable index
+        set chan [lindex $args 0]
+        switch -- $cmd {
+            initialize {
+                set index($chan) 0
+                set buffer($chan) .....
+                return {initialize finalize watch read}
+            }
+            finalize {
+                if {![info exists index($chan)]} {return}
+                unset index($chan) buffer($chan)
+                return
+            }
+            watch {}
+            read {
+                set n [lindex $args 1]
+                if {![info exists index($chan)]} {
+                    driver initialize $chan
+                }
+                set new [expr {$index($chan) + $n}]
+                set result [string range $buffer($chan) $index($chan) $new-1]
+                set index($chan) $new
+                if {[string length $result] == 0} {
+                    driver finalize $chan
+                }
+                return $result
+            }
+        }
+    }
+
+test iogt-7.0 {Handle fleeting EOF} -constraints {testchannel} -body {
+    set chan [chan create read [namespace which driver]]
+    identity -attach $chan
+    list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+        [read $chan] [eof $chan]
+} -cleanup {
+    close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+
+proc delay {op data} {
+    variable store
+    switch -- $op {
+	create/write -	create/read  -
+	delete/write -	delete/read  -
+	flush/write -	write -
+	clear_read   {;#ignore}
+	flush/read  -
+	read        {
+	    if {![info exists store]} {set store {}}
+	    set reply $store
+	    set store $data
+	    return $reply
+	}
+	query/maxRead {return -1}
+    }
+}
+
+test iogt-7.1 {Handle fleeting EOF} -constraints {testchannel} -body {
+    set chan [chan create read [namespace which driver]]
+    testchannel transform $chan -command [namespace code delay]
+    list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+        [read $chan] [eof $chan]
+} -cleanup {
+    close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+
+rename delay {}
+rename driver {}
+
 # cleanup
 foreach file [list dummy dummyout __echo_srv__.tcl] {
     removeFile $file
diff --git a/tests/listObj.test b/tests/listObj.test
index 8b24aa9..d7fb46c 100644
--- a/tests/listObj.test
+++ b/tests/listObj.test
@@ -196,6 +196,10 @@ test listobj-10.1 {Bug [2971669]} {*}{
     -result {{a b c d e} {} {a b c d e f}}
 }
 
+test listobj-11.1 {Bug 3598580: Tcl_ListObjReplace refcount management} testobj {
+    testobj bug3598580
+} 123
+
 # cleanup
 ::tcltest::cleanupTests
 return
diff --git a/tests/lmap.test b/tests/lmap.test
new file mode 100644
index 0000000..08035d9
--- /dev/null
+++ b/tests/lmap.test
@@ -0,0 +1,471 @@
+# Commands covered:  lmap, continue, break
+#
+# This file contains a collection of tests for one or more of the Tcl
+# built-in commands.  Sourcing this file into Tcl runs the tests and
+# generates output for errors.  No output means no errors were found.
+#
+# Copyright (c) 1991-1993 The Regents of the University of California.
+# Copyright (c) 1994-1997 Sun Microsystems, Inc.
+# Copyright (c) 2011 Trevor Davel
+#
+# See the file "license.terms" for information on usage and redistribution
+# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+#
+# RCS: @(#) $Id: $
+
+if {"::tcltest" ni [namespace children]} {
+    package require tcltest 2
+    namespace import -force ::tcltest::*
+}
+
+unset -nocomplain a b i x
+
+# ----- Non-compiled operation -----------------------------------------------
+
+# Basic "lmap" operation (non-compiled)
+test lmap-1.1 {basic lmap tests} {
+    set a {}
+    lmap i {a b c d} {
+	set a [concat $a $i]
+    }
+} {a {a b} {a b c} {a b c d}}
+test lmap-1.2 {basic lmap tests} {
+    lmap i {a b {{c d} e} {123 {{x}}}} {
+	set i
+    }
+} {a b {{c d} e} {123 {{x}}}}
+test lmap-1.2a {basic lmap tests} {
+    lmap i {a b {{c d} e} {123 {{x}}}} {
+	return -level 0 $i
+    }
+} {a b {{c d} e} {123 {{x}}}}
+test lmap-1.4 {basic lmap tests} -returnCodes error -body {
+    lmap
+} -result {wrong # args: should be "lmap varList list ?varList list ...? command"}
+test lmap-1.6 {basic lmap tests} -returnCodes error -body {
+    lmap i
+} -result {wrong # args: should be "lmap varList list ?varList list ...? command"}
+test lmap-1.8 {basic lmap tests} -returnCodes error -body {
+    lmap i j
+} -result {wrong # args: should be "lmap varList list ?varList list ...? command"}
+test lmap-1.10 {basic lmap tests} -returnCodes error -body {
+    lmap i j k l
+} -result {wrong # args: should be "lmap varList list ?varList list ...? command"}
+test lmap-1.11 {basic lmap tests} {
+    lmap i {} {
+	set i
+    }
+} {}
+test lmap-1.12 {basic lmap tests} {
+    lmap i {} {
+	return -level 0 x
+    }
+} {}
+test lmap-1.13 {lmap errors} -returnCodes error -body {
+    lmap {{a}{b}} {1 2 3} {}
+} -result {list element in braces followed by "{b}" instead of space}
+test lmap-1.14 {lmap errors} -returnCodes error -body {
+    lmap a {{1 2}3} {}
+} -result {list element in braces followed by "3" instead of space}
+unset -nocomplain a
+test lmap-1.15 {lmap errors} -setup {
+    unset -nocomplain a
+} -body {
+    set a(0) 44
+    list [catch {lmap a {1 2 3} {}} msg o] $msg $::errorInfo
+} -result {1 {can't set "a": variable is array} {can't set "a": variable is array
+    (setting lmap loop variable "a")
+    invoked from within
+"lmap a {1 2 3} {}"}}
+test lmap-1.16 {lmap errors} -returnCodes error -body {
+    lmap {} {} {}
+} -result {lmap varlist is empty}
+unset -nocomplain a
+
+# Parallel "lmap" operation (non-compiled)
+test lmap-2.1 {parallel lmap tests} {
+    lmap {a b} {1 2 3 4} {
+	list $b $a
+    }
+} {{2 1} {4 3}}
+test lmap-2.2 {parallel lmap tests} {
+    lmap {a b} {1 2 3 4 5} {
+	list $b $a
+    }
+} {{2 1} {4 3} {{} 5}}
+test lmap-2.3 {parallel lmap tests} {
+    lmap a {1 2 3} b {4 5 6} {
+	list $b $a
+    }
+} {{4 1} {5 2} {6 3}}
+test lmap-2.4 {parallel lmap tests} {
+    lmap a {1 2 3} b {4 5 6 7 8} {
+	list $b $a
+    }
+} {{4 1} {5 2} {6 3} {7 {}} {8 {}}}
+test lmap-2.5 {parallel lmap tests} {
+    lmap {a b} {a b A B aa bb} c {c C cc CC} {
+	list $a $b $c
+    }
+} {{a b c} {A B C} {aa bb cc} {{} {} CC}}
+test lmap-2.6 {parallel lmap tests} {
+    lmap a {1 2 3} b {1 2 3} c {1 2 3} d {1 2 3} e {1 2 3} {
+	list $a$b$c$d$e
+    }
+} {11111 22222 33333}
+test lmap-2.7 {parallel lmap tests} {
+    lmap a {} b {1 2 3} c {1 2} d {1 2 3 4} e {{1 2}} {
+	set x $a$b$c$d$e
+    }
+} {{1111 2} 222 33 4}
+test lmap-2.8 {parallel lmap tests} {
+    lmap a {} b {1 2 3} c {1 2} d {1 2 3 4} e {{1 2}} {
+	join [list $a $b $c $d $e] .
+    }
+} {{.1.1.1.1 2} .2.2.2. .3..3. ...4.}
+test lmap-2.9 {lmap only sets vars if repeating loop} {
+    namespace eval ::lmap_test {
+	set rgb {65535 0 0}
+	lmap {r g b} [set rgb] {}
+	set ::x "r=$r, g=$g, b=$b"
+    }
+    namespace delete ::lmap_test
+    set x
+} {r=65535, g=0, b=0}
+test lmap-2.10 {lmap only supports local scalar variables} -setup {
+    unset -nocomplain a
+} -body {
+    lmap {a(3)} {1 2 3 4} {set {a(3)}}
+} -result {1 2 3 4}
+unset -nocomplain a
+
+# "lmap" with "continue" and "break" (non-compiled)
+test lmap-3.1 {continue tests} {
+    lmap i {a b c d} {
+	if {[string compare $i "b"] == 0} continue
+	set i
+    }
+} {a c d}
+test lmap-3.2 {continue tests} {
+    set x 0
+    list [lmap i {a b c d} {
+    	incr x
+    	if {[string compare $i "b"] != 0} continue
+    	set i
+    }] $x
+} {b 4}
+test lmap-3.3 {break tests} {
+    set x 0
+    list [lmap i {a b c d} {
+	incr x
+    	if {[string compare $i "c"] == 0} break
+    	set i
+    }] $x
+} {{a b} 3}
+# Check for bug similar to #406709
+test lmap-3.4 {break tests} {
+    set a 1
+    lmap b b {list [concat a; break]; incr a}
+    incr a
+} {2}
+
+# ----- Compiled operation ---------------------------------------------------
+
+# Basic "lmap" operation (compiled)
+test lmap-4.1 {basic lmap tests} {
+    apply {{} {
+	set a {}
+	lmap i {a b c d} {
+	    set a [concat $a $i]
+	}
+    }}
+} {a {a b} {a b c} {a b c d}}
+test lmap-4.2 {basic lmap tests} {
+    apply {{} {
+	lmap i {a b {{c d} e} {123 {{x}}}} {
+	    set i
+	}
+    }}
+} {a b {{c d} e} {123 {{x}}}}
+test lmap-4.2a {basic lmap tests} {
+    apply {{} {
+	lmap i {a b {{c d} e} {123 {{x}}}} {
+	    return -level 0 $i
+	}
+    }}
+} {a b {{c d} e} {123 {{x}}}}
+test lmap-4.4 {basic lmap tests} -returnCodes error -body {
+    apply {{} { lmap }}
+} -result {wrong # args: should be "lmap varList list ?varList list ...? command"}
+test lmap-4.6 {basic lmap tests} -returnCodes error -body {
+    apply {{} { lmap i }}
+} -result {wrong # args: should be "lmap varList list ?varList list ...? command"}
+test lmap-4.8 {basic lmap tests} -returnCodes error -body {
+    apply {{} { lmap i j }}
+} -result {wrong # args: should be "lmap varList list ?varList list ...? command"}
+test lmap-4.10 {basic lmap tests} -returnCodes error -body {
+    apply {{} { lmap i j k l }}
+} -result {wrong # args: should be "lmap varList list ?varList list ...? command"}
+test lmap-4.11 {basic lmap tests} {
+    apply {{} { lmap i {} { set i } }}
+} {}
+test lmap-4.12 {basic lmap tests} {
+    apply {{} { lmap i {} { return -level 0 x } }}
+} {}
+test lmap-4.13 {lmap errors} -returnCodes error -body {
+    apply {{} { lmap {{a}{b}} {1 2 3} {} }}
+} -result {list element in braces followed by "{b}" instead of space}
+test lmap-4.14 {lmap errors} -returnCodes error -body {
+    apply {{} { lmap a {{1 2}3} {} }}
+} -result {list element in braces followed by "3" instead of space}
+unset -nocomplain a
+test lmap-4.15 {lmap errors} {
+    apply {{} { 
+	set a(0) 44
+	list [catch {lmap a {1 2 3} {}} msg o] $msg $::errorInfo 
+    }} 
+} {1 {can't set "a": variable is array} {can't set "a": variable is array
+    while executing
+"lmap a {1 2 3} {}"}}
+test lmap-4.16 {lmap errors} -returnCodes error -body {
+    apply {{} {
+	lmap {} {} {}
+    }}
+} -result {lmap varlist is empty}
+unset -nocomplain a
+
+# Parallel "lmap" operation (compiled)
+test lmap-5.1 {parallel lmap tests} {
+    apply {{} {
+	lmap {a b} {1 2 3 4} {
+	    list $b $a
+	}
+    }}
+} {{2 1} {4 3}}
+test lmap-5.2 {parallel lmap tests} {
+    apply {{} {
+	lmap {a b} {1 2 3 4 5} {
+	    list $b $a
+	}
+    }}
+} {{2 1} {4 3} {{} 5}}
+test lmap-5.3 {parallel lmap tests} {
+    apply {{} {
+	lmap a {1 2 3} b {4 5 6} {
+	    list $b $a
+	}
+    }}
+} {{4 1} {5 2} {6 3}}
+test lmap-5.4 {parallel lmap tests} {
+    apply {{} {
+	lmap a {1 2 3} b {4 5 6 7 8} {
+	    list $b $a
+	}
+    }}
+} {{4 1} {5 2} {6 3} {7 {}} {8 {}}}
+test lmap-5.5 {parallel lmap tests} {
+    apply {{} {
+	lmap {a b} {a b A B aa bb} c {c C cc CC} {
+	    list $a $b $c
+	}
+    }}
+} {{a b c} {A B C} {aa bb cc} {{} {} CC}}
+test lmap-5.6 {parallel lmap tests} {
+    apply {{} {
+	lmap a {1 2 3} b {1 2 3} c {1 2 3} d {1 2 3} e {1 2 3} {
+	    list $a$b$c$d$e
+	}
+    }}
+} {11111 22222 33333}
+test lmap-5.7 {parallel lmap tests} {
+    apply {{} {
+	lmap a {} b {1 2 3} c {1 2} d {1 2 3 4} e {{1 2}} {
+	    set x $a$b$c$d$e
+	}
+    }}
+} {{1111 2} 222 33 4}
+test lmap-5.8 {parallel lmap tests} {
+    apply {{} {
+	lmap a {} b {1 2 3} c {1 2} d {1 2 3 4} e {{1 2}} {
+	    join [list $a $b $c $d $e] .
+	}
+    }}
+} {{.1.1.1.1 2} .2.2.2. .3..3. ...4.}
+test lmap-5.9 {lmap only sets vars if repeating loop} {
+    apply {{} {
+        set rgb {65535 0 0}
+        lmap {r g b} [set rgb] {}
+        return "r=$r, g=$g, b=$b"
+    }}
+} {r=65535, g=0, b=0}
+test lmap-5.10 {lmap only supports local scalar variables} {
+    apply {{} {
+        lmap {a(3)} {1 2 3 4} {set {a(3)}}
+    }}
+} {1 2 3 4}
+
+# "lmap" with "continue" and "break" (compiled)
+test lmap-6.1 {continue tests} {
+    apply {{} {
+	lmap i {a b c d} {
+	    if {[string compare $i "b"] == 0} continue
+	    set i
+	}
+    }}
+} {a c d}
+test lmap-6.2 {continue tests} {
+    apply {{} {
+	list [lmap i {a b c d} {
+	    incr x
+	    if {[string compare $i "b"] != 0} continue
+	    set i
+	}] $x
+    }}
+} {b 4}
+test lmap-6.3 {break tests} {
+    apply {{} {
+	list [lmap i {a b c d} {
+	    incr x
+	    if {[string compare $i "c"] == 0} break
+	    set i
+	}] $x
+    }}
+} {{a b} 3}
+# Check for bug similar to #406709
+test lmap-6.4 {break tests} {
+    apply {{} {
+	set a 1
+	lmap b b {list [concat a; break]; incr a}
+	incr a
+    }}
+} {2}
+
+# ----- Special cases and bugs -----------------------------------------------
+test lmap-7.1 {compiled lmap backward jump works correctly} -setup {
+    unset -nocomplain x
+} -body {
+    array set x {0 zero 1 one 2 two 3 three}
+    lsort [apply {{arrayName} {
+        upvar 1 $arrayName a
+        lmap member [array names a] {
+            list $member [set a($member)]
+        }
+    }} x]
+} -result [lsort {{0 zero} {1 one} {2 two} {3 three}}]
+test lmap-7.2 {noncompiled lmap and shared variable or value list objects that are converted to another type} -setup {
+    unset -nocomplain x
+} -body {
+    lmap {12.0} {a b c} {
+        set x 12.0
+        set x [expr $x + 1]
+    }
+} -result {13.0 13.0 13.0}
+# Test for incorrect "double evaluation" semantics
+test lmap-7.3 {delayed substitution of body} {
+    apply {{} {
+       set a 0
+       lmap a [list 1 2 3] "
+           set x $a
+       "
+       return $x
+    }}
+} {0}
+# Related to "foreach" test for [Bug 1189274]; crash on failure
+test lmap-7.4 {empty list handling} {
+    proc crash {} {
+	rename crash {}
+	set a "x y z"
+	set b ""
+	lmap aa $a bb $b { set x "aa = $aa bb = $bb" }
+    }
+    crash
+} {{aa = x bb = } {aa = y bb = } {aa = z bb = }}
+# Related to [Bug 1671138]; infinite loop with empty var list in bytecompiled
+# version.
+test lmap-7.5 {compiled empty var list} -returnCodes error -body {
+    proc foo {} {
+	lmap {} x {
+	    error "reached body"
+	}
+    }
+    foo
+} -cleanup {
+    catch {rename foo ""}
+} -result {lmap varlist is empty}
+test lmap-7.6 {lmap: related to "foreach" [Bug 1671087]} -setup {
+    proc demo {} {
+	set vals {1 2 3 4}
+	trace add variable x write {string length $vals ;# }
+	lmap {x y} $vals {format $y}
+    }
+} -body {
+    demo
+} -cleanup {
+    rename demo {}
+} -result {2 4}
+# Huge lists must not overflow the bytecode interpreter (development bug)
+test lmap-7.7 {huge list non-compiled} -setup {
+    unset -nocomplain a b x
+} -body {
+    set x [lmap a [lrepeat 1000000 x] { set b y$a }]
+    list $b [llength $x] [string length $x]
+} -result {yx 1000000 2999999}
+test lmap-7.8 {huge list compiled} -setup {
+    unset -nocomplain a b x
+} -body {
+    set x [apply {{times} {
+	global b
+	lmap a [lrepeat $times x] { set b Y$a }
+    }} 1000000]
+    list $b [llength $x] [string length $x]
+} -result {Yx 1000000 2999999}
+test lmap-7.9 {error then dereference loop var (dev bug)} {
+    catch { lmap a 0 b {1 2 3} { error x } }
+    set a
+} 0
+test lmap-7.9a {error then dereference loop var (dev bug)} {
+    catch { lmap a 0 b {1 2 3} { incr a $b; error x } }
+    set a
+} 1
+
+# ----- Coroutines -----------------------------------------------------------
+test lmap-8.1 {lmap non-compiled with coroutines} -body {
+    coroutine coro apply {{} {
+	set values [yield [info coroutine]]
+	eval lmap i [list $values] {{ yield $i }}
+    }} ;# returns 'coro'
+    coro {a b c d e f} ;# -> a
+    coro 1 ;# -> b
+    coro 2 ;# -> c
+    coro 3 ;# -> d
+    coro 4 ;# -> e
+    coro 5 ;# -> f
+    list [coro 6] [info commands coro]
+} -cleanup {
+    catch {rename coro ""}
+} -result {{1 2 3 4 5 6} {}}
+test lmap-8.2 {lmap compiled with coroutines} -body {
+    coroutine coro apply {{} {
+	set values [yield [info coroutine]]
+	lmap i $values { yield $i }
+    }} ;# returns 'coro'
+    coro {a b c d e f} ;# -> a
+    coro 1 ;# -> b
+    coro 2 ;# -> c
+    coro 3 ;# -> d
+    coro 4 ;# -> e
+    coro 5 ;# -> f
+    list [coro 6] [info commands coro]
+} -cleanup {
+    catch {rename coro ""}
+} -result {{1 2 3 4 5 6} {}}
+
+# cleanup
+unset -nocomplain a x
+catch {rename foo {}}
+::tcltest::cleanupTests
+return
+
+# Local Variables:
+# mode: tcl
+# End:
diff --git a/tests/load.test b/tests/load.test
index 78bf64c..9536271 100644
--- a/tests/load.test
+++ b/tests/load.test
@@ -47,32 +47,38 @@ testConstraint testsimplefilesystem \
 
 test load-1.1 {basic errors} {} {
     list [catch {load} msg] $msg
-} "1 {wrong \# args: should be \"load fileName ?packageName? ?interp?\"}"
+} "1 {wrong \# args: should be \"load ?-global? ?-lazy? ?--? fileName ?packageName? ?interp?\"}"
 test load-1.2 {basic errors} {} {
     list [catch {load a b c d} msg] $msg
-} "1 {wrong \# args: should be \"load fileName ?packageName? ?interp?\"}"
+} "1 {wrong \# args: should be \"load ?-global? ?-lazy? ?--? fileName ?packageName? ?interp?\"}"
 test load-1.3 {basic errors} {} {
     list [catch {load a b foobar} msg] $msg
 } {1 {could not find interpreter "foobar"}}
 test load-1.4 {basic errors} {} {
-    list [catch {load {}} msg] $msg
+    list [catch {load -global {}} msg] $msg
 } {1 {must specify either file name or package name}}
 test load-1.5 {basic errors} {} {
-    list [catch {load {} {}} msg] $msg
+    list [catch {load -lazy {} {}} msg] $msg
 } {1 {must specify either file name or package name}}
 test load-1.6 {basic errors} {} {
     list [catch {load {} Unknown} msg] $msg
 } {1 {package "Unknown" isn't loaded statically}}
+test load-1.7 {basic errors} {} {
+    list [catch {load -abc foo} msg] $msg
+} "1 {bad option \"-abc\": must be -global, -lazy, or --}"
+test load-1.8 {basic errors} {} {
+    list [catch {load -global} msg] $msg
+} "1 {couldn't figure out package name for -global}"
 
 test load-2.1 {basic loading, with guess for package name} \
 	[list $dll $loaded] {
-    load [file join $testDir pkga$ext]
+    load -global [file join $testDir pkga$ext]
     list [pkga_eq abc def] [lsort [info commands pkga_*]]
 } {0 {pkga_eq pkga_quote}}
 interp create -safe child
 test load-2.2 {loading into a safe interpreter, with package name conversion} \
 	[list $dll $loaded] {
-    load [file join $testDir pkgb$ext] pKgB child
+    load -lazy [file join $testDir pkgb$ext] pKgB child
     list [child eval pkgb_sub 44 13] [catch {child eval pkgb_unsafe} msg] $msg \
 	    [catch {pkgb_sub 12 10} msg2] $msg2
 } {31 1 {invalid command name "pkgb_unsafe"} 1 {invalid command name "pkgb_sub"}}
@@ -126,7 +132,7 @@ test load-5.1 {file name not specified and no static package: pick default} \
 	[list $dll $loaded] {
     catch {interp delete x}
     interp create x
-    load [file join $testDir pkga$ext] pkga
+    load -global [file join $testDir pkga$ext] pkga
     load {} pkga x
     set result [info loaded x]
     interp delete x
@@ -182,7 +188,7 @@ test load-8.3 {TclGetLoadedPackages procedure} [list teststaticpkg $dll $loaded]
 test load-8.4 {TclGetLoadedPackages procedure} [list $dll $loaded teststaticpkg] {
     load [file join $testDir pkgb$ext] pkgb
     list [info loaded {}] [lsort [info commands pkgb_*]]
-} [list [concat [list [list [file join $testDir pkgb$ext] Pkgb] {{} Double} {{} More} {{} Another} {{} Test} [list [file join $testDir pkga$ext] Pkga]] $alreadyLoaded] {pkgb_sub pkgb_unsafe}]
+} [list [concat [list [list [file join $testDir pkgb$ext] Pkgb] {{} Double} {{} More} {{} Another} {{} Test} [list [file join $testDir pkga$ext] Pkga]] $alreadyLoaded] {pkgb_demo pkgb_sub pkgb_unsafe}]
 interp delete child
 
 test load-9.1 {Tcl_StaticPackage, load already-loaded package into another interp} \
@@ -209,6 +215,12 @@ test load-10.1 {load from vfs} \
     -body {list [catch {load simplefs:/pkgd$ext pkgd} msg] $msg} \
     -result {0 {}} \
     -cleanup {testsimplefilesystem 0; cd $dir; unset dir}
+
+test load-11.1 {Load TclOO extension using Stubs (Bug [f51efe99a7])} \
+	[list $dll $loaded] {
+    load [file join $testDir pkgooa$ext]
+    list [pkgooa_stubsok] [lsort [info commands pkgooa_*]]
+} {1 pkgooa_stubsok}
 
 # cleanup
 unset ext
diff --git a/tests/lrange.test b/tests/lrange.test
index 6c81872..17a757e 100644
--- a/tests/lrange.test
+++ b/tests/lrange.test
@@ -15,7 +15,7 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
     package require tcltest
     namespace import -force ::tcltest::*
 }
-
+
 test lrange-1.1 {range of list elements} {
     lrange {a b c d} 1 2
 } {b c}
@@ -61,9 +61,11 @@ test lrange-1.14 {range of list elements} {
 test lrange-1.15 {range of list elements} {
     concat \"[lrange {a b \{\   	} 0 2]"
 } {"a b \{\ "}
+# emacs highlighting bug workaround --> "
 test lrange-1.16 {list element quoting} {
     lrange {[append a .b]} 0 end    
 } {{[append} a .b\]}
+
 test lrange-2.1 {error conditions} {
     list [catch {lrange a b} msg] $msg
 } {1 {wrong # args: should be "lrange list first last"}}
@@ -83,6 +85,16 @@ test lrange-2.6 {error conditions} {
     list [catch {lrange "a b c \{ d e" 1 4} msg] $msg
 } {1 {unmatched open brace in list}}
 
+test lrange-3.1 {Bug 3588366: end-offsets before start} {
+    apply {l {
+	lrange $l 0 end-5
+    }} {1 2 3 4 5}
+} {}
+
 # cleanup
 ::tcltest::cleanupTests
 return
+
+# Local Variables:
+# mode: tcl
+# End:
diff --git a/tests/lreplace.test b/tests/lreplace.test
index 5f675bc..d1319c6 100644
--- a/tests/lreplace.test
+++ b/tests/lreplace.test
@@ -15,7 +15,7 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
     package require tcltest
     namespace import -force ::tcltest::*
 }
-
+
 test lreplace-1.1 {lreplace command} {
     lreplace {1 2 3 4 5} 0 0 a
 } {a 2 3 4 5}
@@ -130,7 +130,28 @@ test lreplace-3.1 {lreplace won't modify shared argument objects} {
     p
 } "a b c"
 
+test lreplace-4.1 {Bug ccc2c2cc98: lreplace edge case} {
+    lreplace {} 1 1
+} {}
+# Note that this test will fail in 8.5
+test lreplace-4.2 {Bug ccc2c2cc98: lreplace edge case} {
+    lreplace { } 1 1
+} {}
+test lreplace-4.3 {lreplace edge case} {
+    lreplace {1 2 3} 2 0
+} {1 2 3}
+test lreplace-4.4 {lreplace edge case} {
+    lreplace {1 2 3 4 5} 3 1
+} {1 2 3 4 5}
+test lreplace-4.5 {lreplace edge case} {
+    lreplace {1 2 3 4 5} 3 0 _
+} {1 2 3 _ 4 5}
+
 # cleanup
 catch {unset foo}
 ::tcltest::cleanupTests
 return
+
+# Local Variables:
+# mode: tcl
+# End:
diff --git a/tests/main.test b/tests/main.test
index f1dc7fd..351fd4f 100644
--- a/tests/main.test
+++ b/tests/main.test
@@ -129,7 +129,7 @@ namespace eval ::tcl::test::main {
 	set script [makeFile {} script]
 	file delete $script
 	set f [open $script w]
-	fconfigure $f -encoding utf-8
+	chan configure $f -encoding utf-8
 	puts $f {puts [list $argv0 $argv $tcl_interactive]}
 	puts -nonewline $f {puts [string equal \u20ac }
 	puts $f "\u20ac]"
@@ -150,7 +150,7 @@ namespace eval ::tcl::test::main {
 	set script [makeFile {} script]
 	file delete $script
 	set f [open $script w]
-	fconfigure $f -encoding utf-8
+	chan configure $f -encoding utf-8
 	puts $f {puts [list $argv0 $argv $tcl_interactive]}
 	puts -nonewline $f {puts [string equal \u20ac }
 	puts $f "\u20ac]"
@@ -171,7 +171,7 @@ namespace eval ::tcl::test::main {
 	set script [makeFile {} script]
 	file delete $script
 	set f [open $script w]
-	fconfigure $f -encoding utf-8
+	chan configure $f -encoding utf-8
 	puts $f {puts [list $argv0 $argv $tcl_interactive]}
 	puts -nonewline $f {puts [string equal \u20ac }
 	puts $f "\u20ac]"
@@ -592,7 +592,7 @@ namespace eval ::tcl::test::main {
 	catch {set f [open "|[list [interpreter]]" w+]}
     } -body {
 	type $f {
-	    fconfigure stdin -blocking 0
+	    chan configure stdin -blocking 0
 	    puts SUCCESS
 	}
 	list [catch {gets $f} line] $line
@@ -606,19 +606,19 @@ namespace eval ::tcl::test::main {
 	exec
     } -setup {
 	catch {set f [open "|[list [interpreter]]" w+]}
-	catch {fconfigure $f -blocking 0}
+	catch {chan configure $f -blocking 0}
     } -body {
-	type $f "fconfigure stdin -eofchar \\032
+	type $f "chan configure stdin -eofchar \\032
 	    if 1 \{\n\032"
 	variable wait
-	fileevent $f readable \
+	chan event $f readable \
 		[list set [namespace which -variable wait] "child exit"]
 	set id [after 2000 [list set [namespace which -variable wait] timeout]]
 	vwait [namespace which -variable wait]
 	after cancel $id
 	set wait
     } -cleanup {
-	if {[string equal timeout $wait] && [testConstraint unix]} {
+	if {$wait eq "timeout" && [testConstraint unix]} {
 	    exec kill [pid $f]
 	}
 	close $f
@@ -631,17 +631,17 @@ namespace eval ::tcl::test::main {
     } -setup {
 	set cmd {makeFile "if 1 \{" script}
 	catch {set f [open "|[list [interpreter]] < [list [eval $cmd]]" r]}
-	catch {fconfigure $f -blocking 0}
+	catch {chan configure $f -blocking 0}
     } -body {
 	variable wait
-	fileevent $f readable \
+	chan event $f readable \
 		[list set [namespace which -variable wait] "child exit"]
 	set id [after 2000 [list set [namespace which -variable wait] timeout]]
 	vwait [namespace which -variable wait]
 	after cancel $id
 	set wait
     } -cleanup {
-	if {[string equal timeout $wait] && [testConstraint unix]} {
+	if {$wait eq "timeout" && [testConstraint unix]} {
 	    exec kill [pid $f]
 	}
 	close $f
@@ -748,7 +748,7 @@ namespace eval ::tcl::test::main {
 	exec Tcltest
     } -setup {
 	catch {set f [open "|[list [interpreter]]" w+]}
-	catch {fconfigure $f -blocking 0}
+	catch {chan configure $f -blocking 0}
     } -body {
 	type $f "testsetmainloop
 	         after 2000 testexitmainloop
@@ -983,7 +983,7 @@ namespace eval ::tcl::test::main {
     } -body {
 	exec [interpreter] << {
 		testsetmainloop
-		fconfigure stdin -blocking 0
+		chan configure stdin -blocking 0
 		testexitmainloop
 	} >& result
 	set f [open result]
diff --git a/tests/misc.test b/tests/misc.test
index 6ddc718..d4ece74 100644
--- a/tests/misc.test
+++ b/tests/misc.test
@@ -59,12 +59,7 @@ test misc-1.2 {error in variable ref. in command in array reference} {
 missing close-brace for variable name
 missing close-brace for variable name
     while executing
-"set tst $a([winfo name $\{zz)
-	# this is a bogus comment
-	# this is a bogus comment
-	# this is a bogus comment
-	# this is a bogus comment
-	# this is a ..."
+"set tst $a([winfo name $\{"
     (procedure "tstProc" line 4)
     invoked from within
 "tstProc"}]
diff --git a/tests/msgcat.test b/tests/msgcat.test
index 1522354..050b592 100644
--- a/tests/msgcat.test
+++ b/tests/msgcat.test
@@ -12,13 +12,13 @@
 # Note that after running these tests, entries will be left behind in the
 # message catalogs for locales foo, foo_BAR, and foo_BAR_baz.
 
-package require Tcl 8.2
+package require Tcl 8.5
 if {[catch {package require tcltest 2}]} {
     puts stderr "Skipping tests in [info script].  tcltest 2 required."
     return
 }
-if {[catch {package require msgcat 1.5.0}]} {
-    puts stderr "Skipping tests in [info script].  No msgcat 1.5.0 found to test."
+if {[catch {package require msgcat 1.5}]} {
+    puts stderr "Skipping tests in [info script].  No msgcat 1.5 found to test."
     return
 }
 
@@ -56,7 +56,7 @@ namespace eval ::msgcat::test {
 		set result [string tolower \
 			[msgcat::ConvertLocale $::tcl::mac::locale]]
 	    } else {
-		if {([info sharedlibextension] == ".dll")
+		if {([info sharedlibextension] eq ".dll")
 			&& ![catch {package require registry}]} {
 		    # Windows and Cygwin have other ways to determine the
 		    # locale when the environment variables are missing
@@ -72,7 +72,7 @@ namespace eval ::msgcat::test {
 	    variable var
 	    foreach var $envVars {
 		catch {variable $var $::env($var)}
-		catch {unset ::env($var)}
+		unset -nocomplain ::env($var)
 	    }
 	    foreach var $setVars {
 		set ::env($var) $var
@@ -84,13 +84,13 @@ namespace eval ::msgcat::test {
 	} -cleanup {
 	    interp delete [namespace current]::i
 	    foreach var $envVars {
-		catch {unset ::env($var)}
+		unset -nocomplain ::env($var)
 		catch {set ::env($var) [set [namespace current]::$var]}
 	    }
 	} -body {i eval msgcat::mclocale} -result $result
 	incr count
     }
-    catch {unset result}
+    unset -nocomplain result
     
     # Could add tests of initialization from Windows registry here.
     # Use a fake registry package.
@@ -324,7 +324,7 @@ namespace eval ::msgcat::test {
 	    incr count
 	}
     }
-    catch {unset result}
+    unset -nocomplain result
 
     # Tests msgcat-4.*: [mcunknown]
 
diff --git a/tests/namespace.test b/tests/namespace.test
index 1d46bf0..cded1f4 100644
--- a/tests/namespace.test
+++ b/tests/namespace.test
@@ -303,7 +303,7 @@ test namespace-9.4 {Tcl_Import, simple import} {
     }
     test_ns_import::p
 } {cmd1: 123}
-test namespace-9.5 {Tcl_Import, can't redefine cmd unless allowOverwrite!=0} {
+test namespace-9.5 {Tcl_Import, RFE 1230597} {
     list [catch {namespace eval test_ns_import {namespace import ::test_ns_export::*}} msg] $msg
 } {0 {}}
 test namespace-9.6 {Tcl_Import, cmd redefinition ok if allowOverwrite!=0} {
@@ -558,6 +558,15 @@ test namespace-13.1 {DeleteImportedCmd, deletes imported cmds} {
         lappend l [info commands ::test_ns_import::*]
     }
 } {::test_ns_import::cmd1 {}}
+test namespace-13.2 {DeleteImportedCmd, Bug a4494e28ed} {
+    # Will panic if still buggy
+    namespace eval src {namespace export foo; proc foo {} {}}
+    namespace eval dst {namespace import [namespace parent]::src::foo}
+    trace add command src::foo delete \
+        "[list namespace delete [namespace current]::dst] ;#"
+    proc src::foo {} {}
+    namespace delete src
+} {}
 
 test namespace-14.1 {TclGetNamespaceForQualName, absolute names} {
     catch {namespace delete {*}[namespace children :: test_ns_*]}
@@ -1111,6 +1120,14 @@ test namespace-26.7 {NamespaceExportCmd, -clear resets export list} {
     }
     list [lsort [info commands test_ns_2::*]] [test_ns_2::cmd4 hello]
 } [list [lsort {::test_ns_2::cmd4 ::test_ns_2::cmd1 ::test_ns_2::cmd3}] {cmd4: hello}]
+test namespace-26.8 {NamespaceExportCmd, -clear resets export list} {
+    catch {namespace delete foo}
+    namespace eval foo {
+	namespace export x
+	namespace export -clear
+    }
+    list [namespace eval foo namespace export] [namespace delete foo]
+} {{} {}}
 
 test namespace-27.1 {NamespaceForgetCmd, no args} {
     catch {namespace delete {*}[namespace children :: test_ns_*]}
@@ -2932,6 +2949,10 @@ test namespace-54.1 {leak on namespace deletion} -constraints {memory} \
     rename getbytes {}
     unset i ns start end
 } -result 0
+
+test namespace-55.1 {compiled ensembles inside compiled ensembles: Bug 6d2f249a01} {
+    info class [format %s constructor] oo::object
+} ""
 
 # cleanup
 catch {rename cmd1 {}}
diff --git a/tests/nre.test b/tests/nre.test
index b8ef2e0..e512eac 100644
--- a/tests/nre.test
+++ b/tests/nre.test
@@ -74,7 +74,6 @@ test nre-1.1 {self-recursive procs} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 1 1 1} 0}
-
 test nre-1.2 {self-recursive lambdas} -setup {
     set a [list i [makebody {apply $::a $i}]]
 } -body {
@@ -85,7 +84,6 @@ test nre-1.2 {self-recursive lambdas} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 1 1 1} 0}
-
 test nre-1.3 {mutually recursive procs and lambdas} -setup {
     proc a i {
 	apply $::b [incr i]
@@ -153,6 +151,27 @@ test nre-4.1 {ensembles are not recursive} -setup {
     testnrelevels
 } -result {{0 2 1 1} 0}
 
+test nre-4.2 {(compiled) ensembles do not break tailcall} -setup {
+    # Fix Bug d87cb18205
+    proc b {} {
+	tailcall append result first
+    }
+    set map [namespace ensemble configure ::dict -map]
+    dict set map a b
+    namespace ensemble configure ::dict -map $map
+    proc demo {} {
+	dict a
+	append result second
+    }
+} -body {
+    demo
+} -cleanup {
+    rename demo {}
+    namespace ensemble configure ::dict -map [dict remove $map a]
+    unset map
+    rename b {}
+} -result firstsecond
+
 test nre-5.1 {[namespace eval] is not recursive} -setup {
     namespace eval ::foo {
 	setabs
@@ -164,8 +183,7 @@ test nre-5.1 {[namespace eval] is not recursive} -setup {
     namespace delete ::foo
 } -constraints {
     testnrelevels
-} -result {{0 3 2 2} 0}
-
+} -result {{0 2 2 2} 0}
 test nre-5.2 {[namespace eval] is not recursive} -setup {
     namespace eval ::foo {
 	setabs
@@ -177,7 +195,7 @@ test nre-5.2 {[namespace eval] is not recursive} -setup {
     namespace delete ::foo
 } -constraints {
     testnrelevels
-} -result {{0 3 2 2} 0}
+} -result {{0 2 2 2} 0}
 
 test nre-6.1 {[uplevel] is not recursive} -setup {
     proc a i [makebody {uplevel 1 [list a $i]}]
@@ -189,7 +207,6 @@ test nre-6.1 {[uplevel] is not recursive} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 2 2 0} 0}
-
 test nre-6.2 {[uplevel] is not recursive} -setup {
     setabs
     proc a i [makebody {uplevel 1 "set x $i; a $i"}]
@@ -211,7 +228,6 @@ test nre-7.1 {[catch] is not recursive} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 3 3 0} 0}
-
 test nre-7.2 {[if] is not recursive} -setup {
     setabs
     proc a i [makebody {uplevel 1 "if 1 {a $i}"}]
@@ -222,7 +238,6 @@ test nre-7.2 {[if] is not recursive} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 2 2 0} 0}
-
 test nre-7.3 {[while] is not recursive} -setup {
     setabs
     proc a i [makebody {uplevel 1 "while 1 {set res \[a $i\]; break}; set res"}]
@@ -233,7 +248,6 @@ test nre-7.3 {[while] is not recursive} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 2 2 0} 0}
-
 test nre-7.4 {[for] is not recursive} -setup {
     setabs
     proc a i [makebody {uplevel 1 "for {set j 0} {\$j < 10} {incr j} {set res \[a $i\]; break}; set res"}]
@@ -244,7 +258,6 @@ test nre-7.4 {[for] is not recursive} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 2 2 0} 0}
-
 test nre-7.5 {[foreach] is not recursive} -setup {
     #
     # Enable once [foreach] is NR-enabled
@@ -258,7 +271,6 @@ test nre-7.5 {[foreach] is not recursive} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 3 3 0} 0}
-
 test nre-7.6 {[eval] is not recursive} -setup {
     proc a i [makebody {eval [list a $i]}]
 } -body {
@@ -269,7 +281,6 @@ test nre-7.6 {[eval] is not recursive} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 2 2 1} 0}
-
 test nre-7.7 {[eval] is not recursive} -setup {
     proc a i [makebody {eval "a $i"}]
 } -body {
@@ -280,7 +291,6 @@ test nre-7.7 {[eval] is not recursive} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 2 2 1} 0}
-
 test nre-7.8 {bug #2910748: switch out of stale BC is not nre-aware} -setup {
     proc foo args {}
     foo
@@ -295,18 +305,15 @@ test nre-7.8 {bug #2910748: switch out of stale BC is not nre-aware} -setup {
 } -body {
     # if switching to plain eval is not nre aware, this will cause a "cannot
     # yield" error
-
     list [bar] [bar] [bar]
 } -cleanup {
     rename bar {}
     rename foo {}
 } -result {1 2 3}
 
-
 test nre-8.1 {nre and {*}} -body {
     # force an expansion that grows the evaluation stack, check that nre
     # adapts the TEBCdataPtr. This crashes on failure.
-
     proc inner {} {
 	set long [lrepeat 1000000 1]
 	list {*}$long
@@ -321,21 +328,18 @@ test nre-8.2 {nre and {*}, [Bug 2415422]} -body {
     # force an expansion that grows the evaluation stack, check that nre
     # adapts the bcFramePtr. This causes an NRE assertion to fail if it is not
     # done properly.
-
     proc nop {} {}
     proc crash {} {
 	foreach val [list {*}[lrepeat 100000 x]] {
 	    nop
 	}
     }
-
     crash
 } -cleanup {
     rename nop {}
     rename crash {}
 }
 
-
 #
 #  Basic TclOO tests
 #
@@ -351,7 +355,6 @@ test nre-oo.1 {really deep calls in oo - direct} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 1 1 1} 0}
-
 test nre-oo.2 {really deep calls in oo - call via [self]} -setup {
     oo::object create foo
     oo::objdefine foo method bar i [makebody {[self] bar $i}]
@@ -363,7 +366,6 @@ test nre-oo.2 {really deep calls in oo - call via [self]} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 1 1 1} 0}
-
 test nre-oo.3 {really deep calls in oo - private calls} -setup {
     oo::object create foo
     oo::objdefine foo method bar i [makebody {my bar $i}]
@@ -375,7 +377,6 @@ test nre-oo.3 {really deep calls in oo - private calls} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 1 1 1} 0}
-
 test nre-oo.4 {really deep calls in oo - overriding} -setup {
     oo::class create foo {
 	method bar i [makebody {my bar $i}]
@@ -392,7 +393,6 @@ test nre-oo.4 {really deep calls in oo - overriding} -setup {
 } -constraints {
     testnrelevels
 } -result {{0 1 1 1} 0}
-
 test nre-oo.5 {really deep calls in oo - forwards} -setup {
     oo::object create foo
     set body [makebody {my boo $i}]
@@ -409,7 +409,6 @@ test nre-oo.5 {really deep calls in oo - forwards} -setup {
     testnrelevels
 } -result {{0 2 1 1} 0}
 
-
 #
 # NASTY BUG found by tcllib's interp package
 #
diff --git a/tests/obj.test b/tests/obj.test
index 71a39b4..151abfb 100644
--- a/tests/obj.test
+++ b/tests/obj.test
@@ -605,7 +605,7 @@ test obj-33.2 {integer overflow on input} {longIs32bit wideBiggerThanInt} {
     set x 0xffff; append x ffff
     list [string is integer $x] [expr { wide($x) }]
 } {1 4294967295}
-test obj-33.3 {integer overflow on input} {longIs32bit wideBiggerThanInt} {
+test obj-33.3 {integer overflow on input} {
     set x 0x10000; append x 0000
     list [string is integer $x] [expr { wide($x) }]
 } {0 4294967296}
@@ -621,7 +621,7 @@ test obj-33.6 {integer overflow on input} {longIs32bit wideBiggerThanInt} {
     set x -0xffff; append x ffff
     list [string is integer $x] [expr { wide($x) }]
 } {1 -4294967295}
-test obj-33.7 {integer overflow on input} {longIs32bit wideBiggerThanInt} {
+test obj-33.7 {integer overflow on input} {
     set x -0x10000; append x 0000
     list [string is integer $x] [expr { wide($x) }]
 } {0 -4294967296}
diff --git a/tests/oo.test b/tests/oo.test
index 540cdf3..f35b70a 100644
--- a/tests/oo.test
+++ b/tests/oo.test
@@ -2,12 +2,12 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 2006-2012 Donal K. Fellows
+# Copyright (c) 2006-2013 Donal K. Fellows
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-package require -exact TclOO 0.7 ;# Must match value in generic/tclOO.h
+package require TclOO 1.0.3
 package require tcltest 2
 if {"::tcltest" in [namespace children]} {
     namespace import -force ::tcltest::*
@@ -101,7 +101,7 @@ test oo-0.8 {leak in variable management} -setup {
 test oo-0.9 {various types of presence of the TclOO package} {
     list [lsearch -nocase -all -inline [package names] tcloo] \
 	[package present TclOO] [package versions TclOO]
-} [list TclOO $::oo::version $::oo::version]
+} [list TclOO $::oo::patchlevel $::oo::patchlevel]
 
 test oo-1.1 {basic test of OO functionality: no classes} {
     set result {}
@@ -258,6 +258,29 @@ test oo-1.18 {OO: create object in NS with same name as global cmd} -setup {
     rename test-oo-1.18 {}
     A destroy
 } -result ::C
+test oo-1.18.1 {Bug 75b8433707: memory leak in oo-1.18} -setup {
+    proc test-oo-1.18 {} return
+} -constraints memory -body {
+    leaktest {
+	oo::class create A
+	oo::class create B {superclass A}
+	oo::define B constructor {} {A create test-oo-1.18}
+	B create C
+	A destroy
+    }
+} -cleanup {
+    rename test-oo-1.18 {}
+} -result 0
+test oo-1.18.2 {Bug 21c144f0f5} -setup {
+    interp create slave
+} -body {
+    slave eval {
+	oo::define [oo::class create foo] superclass oo::class
+	oo::class destroy
+    }
+} -cleanup {
+    interp delete slave
+} 
 test oo-1.19 {basic test of OO functionality: teardown order} -body {
     oo::object create o
     namespace delete [info object namespace o]
@@ -270,6 +293,23 @@ test oo-1.20 {basic test of OO functionality: my teardown post rename} -body {
     obj destroy
     info commands ::AGlobalName
 } -result {}
+test oo-1.21 {basic test of OO functionality: default relations} -setup {
+    set fresh [interp create]
+} -body {
+    lmap x [$fresh eval {
+	foreach cmd {instances subclasses mixins superclass} {
+	    foreach initial {object class Slot} {
+		lappend x [info class $cmd ::oo::$initial]
+	    }
+	}
+	foreach initial {object class Slot} {
+	    lappend x [info object class ::oo::$initial]
+	}
+	return $x
+    }] {lsort $x}
+} -cleanup {
+    interp delete $fresh
+} -result {{} {::oo::Slot ::oo::class ::oo::object} {::oo::define::filter ::oo::define::mixin ::oo::define::superclass ::oo::define::variable ::oo::objdefine::filter ::oo::objdefine::mixin ::oo::objdefine::variable} {::oo::Slot ::oo::class} {} {} {} {} {} {} ::oo::object ::oo::object ::oo::class ::oo::class ::oo::class}
 
 test oo-2.1 {basic test of OO functionality: constructor} -setup {
     # This is a bit complex because it needs to run in a sub-interp as
@@ -376,6 +416,31 @@ test oo-2.8 {construction, method calls and ensembles - Bug 3514761} -setup {
 } -returnCodes error -cleanup {
     namespace delete k
 } -result {wrong # args: should be "k next j"}
+test oo-2.9 {construction failures and self creation} -setup {
+    set ::result {}
+    oo::class create Root
+} -body {
+    oo::class create A {
+	superclass Root
+	constructor {} {
+	    lappend ::result "in A"
+	    error "failure in A"
+	}
+	destructor {lappend ::result [self]}
+    }
+    oo::class create B {
+	superclass Root
+	constructor {} {
+	    lappend ::result "in B [self]"
+	    error "failure in B"
+	}
+	destructor {lappend ::result [self]}
+    }
+    lappend ::result [catch {A create a} msg] $msg
+    lappend ::result [catch {B create b} msg] $msg
+} -cleanup {
+    Root destroy
+} -result {{in A} ::a 1 {failure in A} {in B ::b} ::b 1 {failure in B}}
 
 test oo-3.1 {basic test of OO functionality: destructor} -setup {
     # This is a bit complex because it needs to run in a sub-interp as we're
@@ -936,6 +1001,69 @@ test oo-6.18 {Bug 3408830: more forwarding cases} -setup {
 } -returnCodes error -cleanup {
     fooClass destroy
 } -result {wrong # args: should be "::foo len string"}
+test oo-6.19 {Bug 3610404: forwarding resolution + traces} -setup {
+    oo::object create foo
+    unset -nocomplain ::result
+    set ::result {}
+} -body {
+    proc ::my {method} {lappend ::result global}
+    oo::objdefine foo {
+	method target {} {lappend ::result instance}
+	forward bar my target
+	method bump {} {
+	    set ns [info object namespace ::foo]
+	    rename ${ns}::my ${ns}::
+	    rename ${ns}:: ${ns}::my
+	}
+    }
+    proc harness {} {
+	foo target
+	foo bar
+	foo target
+    }
+    trace add execution harness enterstep {apply {{cmd args} {foo bump}}}
+    foo target
+    foo bar
+    foo bump
+    foo bar
+    harness
+} -cleanup {
+    catch {rename harness {}}
+    catch {rename ::my {}}
+    foo destroy
+} -result {instance instance instance instance instance instance}
+test oo-6.20 {Bug 3610404: forwarding resolution + traces} -setup {
+    oo::class create fooClass
+    fooClass create foo
+    unset -nocomplain ::result
+    set ::result {}
+} -body {
+    proc ::my {method} {lappend ::result global}
+    oo::define fooClass {
+	method target {} {lappend ::result class}
+	forward bar my target
+	method bump {} {
+	    set ns [info object namespace [self]]
+	    rename ${ns}::my ${ns}::
+	    rename ${ns}:: ${ns}::my
+	}
+    }
+    proc harness {} {
+	foo target
+	foo bar
+	foo target
+    }
+    trace add execution harness enterstep {apply {{cmd args} {foo bump}}}
+    foo target
+    foo bar
+    foo bump
+    foo bar
+    harness
+} -cleanup {
+    catch {rename harness {}}
+    catch {rename ::my {}}
+    fooClass destroy
+} -result {class class class class class class}
 
 test oo-7.1 {OO: inheritance 101} -setup {
     oo::class create superClass
@@ -1441,6 +1569,34 @@ test oo-12.7 {OO: filters} -setup {
 } -cleanup {
     Aclass destroy
 } -result {foo {{::Aclass outerfoo} {::Aclass InnerFoo}}}
+test oo-12.8 {OO: filters and destructors} -setup {
+    oo::class create Aclass
+    Aclass create Aobject
+    set ::log {}
+} -body {
+    oo::define Aclass {
+	constructor {} {
+	    lappend ::log "in constructor"
+	}
+	destructor {
+	    lappend ::log "in destructor"
+	}
+	method bar {} {
+	    lappend ::log "in method"
+	}
+	method Boo args {
+	    lappend ::log [self target]
+	    next {*}$args
+	}
+	filter Boo
+    }
+    set obj [Aclass new]
+    $obj bar
+    $obj destroy
+    return $::log
+} -cleanup {
+    Aclass destroy
+} -result {{in constructor} {::Aclass bar} {in method} {::oo::object destroy} {in destructor}}
 
 test oo-13.1 {OO: changing an object's class} {
     oo::class create Aclass
@@ -1776,6 +1932,36 @@ test oo-15.9 {ensemble rewriting must not bleed through oo::copy} -setup {
 } -returnCodes error -cleanup {
     Foo destroy
 } -result {wrong # args: should be "::bar <cloned> a b"}
+test oo-15.10 {variable binding must not bleed through oo::copy} -setup {
+    oo::class create FooClass
+    set result {}
+} -body {
+    set obj1 [FooClass new]
+    oo::objdefine $obj1 {
+	variable var 
+	method m {} {
+	    set var foo
+	}
+	method get {} {
+	    return $var
+	}
+	export eval
+    }
+
+    $obj1 m
+    lappend result [$obj1 get]
+    set obj2 [oo::copy $obj1]
+    $obj2 eval {
+	set var bar
+    }
+    lappend result [$obj2 get]
+    $obj1 eval {
+	set var grill
+    }
+    lappend result [$obj1 get] [$obj2 get]
+} -cleanup {
+    FooClass destroy
+} -result {foo bar grill bar}
 
 test oo-16.1 {OO: object introspection} -body {
     info object
@@ -2204,6 +2390,25 @@ test oo-19.2 {OO: varname method: Bug 2883857} -setup {
 } -cleanup {
     SpecialClass destroy
 } -result ::oo_test::x(y)
+test oo-19.3 {OO: varname method and variable decl: Bug 3603695} -setup {
+    oo::class create testClass {
+	variable foo
+	export varname
+	constructor {} {
+	    variable foo x
+	}
+	method bar {obj} {
+	    my varname foo
+	    $obj varname foo
+	}
+    }
+} -body {
+    testClass create A
+    testClass create B
+    lsearch [list [A varname foo] [B varname foo]] [B bar A]
+} -cleanup {
+    testClass destroy
+} -result 0
 
 test oo-20.1 {OO: variable method} -body {
     oo::class create testClass {
@@ -3355,6 +3560,42 @@ test oo-34.8 {TIP 380: slots - presence} {
 test oo-34.9 {TIP 380: slots - presence} {
     getMethods oo::objdefine::variable
 } {{-append -clear -set} {Get Set}}
+
+test oo-35.1 {Bug 9d61624b3d: Empty superclass must not cause crash} -setup {
+    oo::class create fruit {
+	method eat {} {}
+    }
+    set result {}
+} -body {
+    lappend result [fruit create ::apple] [info class superclasses fruit]
+    oo::define fruit superclass
+    lappend result [info class superclasses fruit] \
+	[info object class apple oo::object] \
+	[info class call fruit destroy] \
+	[catch { apple }]
+} -cleanup {
+    unset -nocomplain result
+    fruit destroy
+} -result {::apple ::oo::object ::oo::object 1 {{method destroy ::oo::object {core method: "destroy"}}} 1}
+test oo-35.2 {Bug 9d61624b3d: Empty superclass must not cause crash} -setup {
+    oo::class create fruitMetaclass {
+	superclass oo::class
+	method eat {} {}
+    }
+    set result {}
+} -body {
+    lappend result [fruitMetaclass create ::appleClass] \
+	[appleClass create orange] \
+	[info class superclasses fruitMetaclass]
+    oo::define fruitMetaclass superclass
+    lappend result [info class superclasses fruitMetaclass] \
+	[info object class appleClass oo::class] \
+	[catch { orange }] [info object class orange] \
+	[appleClass create pear]
+} -cleanup {
+    unset -nocomplain result
+    fruitMetaclass destroy
+} -result {::appleClass ::orange ::oo::class ::oo::class 1 1 ::appleClass ::pear}
 
 cleanupTests
 return
diff --git a/tests/ooNext2.test b/tests/ooNext2.test
index e78e0d0..6a48d28 100644
--- a/tests/ooNext2.test
+++ b/tests/ooNext2.test
@@ -7,7 +7,7 @@
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-package require -exact TclOO 0.7 ;# Must match value in configure.in
+package require TclOO 1.0.3
 package require tcltest 2
 if {"::tcltest" in [namespace children]} {
     namespace import -force ::tcltest::*
@@ -526,6 +526,93 @@ test oo-call-1.19 {object call introspection - memory leaks} -setup {
 } -cleanup {
     leaktester destroy
 } -constraints memory -result 0
+test oo-call-1.20 {object call introspection - complex case} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+    }
+    oo::class create ::C {
+	superclass root
+	method x {} {}
+	mixin B
+    }
+    oo::class create ::D {
+	superclass C
+	method x {} {}
+    }
+    oo::class create ::E {
+	superclass root
+	method x {} {}
+    }
+    oo::class create ::F {
+	superclass E
+	method x {} {}
+    }
+    oo::class create ::G {
+	superclass root
+	method x {} {}
+    }
+    oo::class create ::H {
+	superclass G
+	method x {} {}
+    }
+    oo::define F mixin H
+    F create y
+    oo::objdefine y {
+	method x {} {}
+	mixin D
+    }
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{method x ::D method} {method x ::B method} {method x ::A method} {method x ::C method} {method x ::H method} {method x ::G method} {method x object method} {method x ::F method} {method x ::E method}}
+test oo-call-1.21 {object call introspection - complex case} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method y {} {}
+	filter y
+    }
+    oo::class create ::B {
+	superclass A
+	method y {} {}
+    }
+    oo::class create ::C {
+	superclass root
+	method x {} {}
+	mixin B
+    }
+    oo::class create ::D {
+	superclass C
+	filter x
+    }
+    oo::class create ::E {
+	superclass root
+	method y {} {}
+	method x {} {}
+    }
+    oo::class create ::F {
+	superclass E
+	method z {} {}
+	method q {} {}
+    }
+    F create y
+    oo::objdefine y {
+	method unknown {} {}
+	mixin D
+	filter q
+    }
+    info object call y z
+} -cleanup {
+    root destroy
+} -result {{filter x ::C method} {filter x ::E method} {filter y ::B method} {filter y ::A method} {filter y ::E method} {filter q ::F method} {method z ::F method}}
 
 test oo-call-2.1 {class call introspection} -setup {
     oo::class create root
@@ -779,6 +866,196 @@ test oo-call-3.4 {current call introspection: in destructors} -setup {
 } -cleanup {
     root destroy
 } -result {{{{method <destructor> ::B method} {method <destructor> ::A method}} 0} {{{method <destructor> ::B method} {method <destructor> ::A method}} 1}}
+
+# Contributed tests from aspect, related to [0f42ff7871]
+#
+# dkf's "Principles Leading to a Fix"
+#
+#   A method ought to work "the same" whether or not it has been overridden by
+#   a subclass. A tailcalled command ought to have as parent stack the same
+#   thing you'd get with uplevel 1. A subclass will often expect the
+#   superclass's result to be the result that would be returned if the
+#   subclass was not there.
+
+# Common setup:
+#	any invocation of bar should emit "abc\nhi\n" then return to its
+#	caller
+set testopts {
+    -setup {
+	oo::class create Master
+	oo::class create Foo {
+	    superclass Master
+	    method bar {} {
+		puts abc
+		tailcall puts hi
+		puts xyz
+	    }
+	}
+	oo::class create Foo2 {
+	    superclass Master
+	}
+    }
+    -cleanup {
+	Master destroy
+    }
+}
+
+# these succeed, showing that without [next] the bug doesn't fire
+test next-tailcall-simple-1 "trivial case with one method" {*}$testopts -body {
+    [Foo create foo] bar
+} -output [join {abc hi} \n]\n
+test next-tailcall-simple-2 "my bar" {*}$testopts -body {
+    oo::define Foo method baz {} {
+	puts a
+	my bar
+	puts b
+    }
+    [Foo create foo] baz
+} -output [join {a abc hi b} \n]\n
+test next-tailcall-simple-3 "\[self\] bar" {*}$testopts -body {
+    oo::define Foo method baz {} {
+	puts a
+	[self] bar
+	puts b
+    }
+    [Foo create foo] baz
+} -output [join {a abc hi b} \n]\n
+test next-tailcall-simple-4 "foo bar" {*}$testopts -body {
+    oo::define Foo method baz {} {
+	puts a
+	foo bar
+	puts b
+    }
+    [Foo create foo] baz
+} -output [join {a abc hi b} \n]\n
+
+# everything from here on uses [next], and fails on 8.6.4 with compilation
+test next-tailcall-superclass-1 "next superclass" {*}$testopts -body {
+    oo::define Foo2 {
+	superclass Foo
+	method bar {} {
+	    puts a
+	    next
+	    puts b
+	}
+    }
+    [Foo2 create foo] bar
+} -output [join {a abc hi b} \n]\n
+test next-tailcall-superclass-2 "nextto superclass" {*}$testopts -body {
+    oo::define Foo2 {
+	superclass Foo
+	method bar {} {
+	    puts a
+	    nextto Foo
+	    puts b
+	}
+    }
+    [Foo2 create foo] bar
+} -output [join {a abc hi b} \n]\n
+
+test next-tailcall-mixin-1 "class mixin" {*}$testopts -body {
+    oo::define Foo2 {
+	method Bar {} {
+	    puts a
+	    next
+	    puts b
+	}
+	filter Bar
+    }
+    oo::define Foo mixin Foo2
+    Foo create foo
+    foo bar
+} -output [join {a abc hi b} \n]\n
+
+test next-tailcall-objmixin-1 "object mixin" {*}$testopts -body {
+    oo::define Foo2 {
+	method Bar {} {
+	    puts a
+	    next
+	    puts b
+	}
+	filter Bar
+    }
+    Foo create foo
+    oo::objdefine foo mixin Foo2
+    foo bar
+} -output [join {a abc hi b} \n]\n
+
+test next-tailcall-filter-1 "filter method" {*}$testopts -body {
+    oo::define Foo method Filter {} {
+	puts a
+	next
+	puts b
+    }
+    oo::define Foo filter Filter
+    [Foo new] bar
+} -output [join {a abc hi b} \n]\n
+
+test next-tailcall-forward-1 "forward method" {*}$testopts -body {
+    proc foobar {} {
+	puts "abc"
+	tailcall puts "hi"
+	puts "xyz"
+    }
+    oo::define Foo forward foobar foobar
+    oo::define Foo2 {
+	superclass Foo
+	method foobar {} {
+	    puts a
+	    next
+	    puts b
+	}
+    }
+    [Foo2 new] foobar
+} -output [join {a abc hi b} \n]\n
+
+test next-tailcall-constructor-1 "next in constructor" -body {
+    oo::class create Foo {
+	constructor {} {
+	    puts abc
+	    tailcall puts hi
+	    puts xyz
+	}
+    }
+    oo::class create Foo2 {
+	superclass Foo
+	constructor {} {
+	    puts a
+	    next
+	    puts b
+	}
+    }
+    list [Foo new] [Foo2 new]
+    return ""
+} -cleanup {
+    Foo destroy
+} -output [join {abc hi a abc hi b} \n]\n
+
+test next-tailcall-destructor-1 "next in destructor" -body {
+    oo::class create Foo {
+	destructor {
+	    puts abc
+	    tailcall puts hi
+	    puts xyz
+	}
+    }
+    oo::class create Foo2 {
+	superclass Foo
+	destructor {
+	    puts a
+	    next
+	    puts b
+	}
+    }
+    Foo create foo
+    Foo2 create foo2
+    foo destroy
+    foo2 destroy
+} -output [join {abc hi a abc hi b} \n]\n -cleanup {
+    Foo destroy
+}
+
+unset testopts
 
 cleanupTests
 return
diff --git a/tests/parse.test b/tests/parse.test
index 0f76d64..d73c725 100644
--- a/tests/parse.test
+++ b/tests/parse.test
@@ -20,15 +20,18 @@ namespace eval ::tcl::test::parse {
 catch [list package require -exact Tcltest [info patchlevel]]
 
 testConstraint testparser [llength [info commands testparser]]
+testConstraint testbytestring [llength [info commands testbytestring]]
 testConstraint testevalobjv [llength [info commands testevalobjv]]
 testConstraint testevalex [llength [info commands testevalex]]
 testConstraint testparsevarname [llength [info commands testparsevarname]]
 testConstraint testparsevar [llength [info commands testparsevar]]
 testConstraint testasync [llength [info commands testasync]]
 testConstraint testcmdtrace [llength [info commands testcmdtrace]]
+testConstraint testevent [llength [info commands testevent]]
+testConstraint memory [llength [info commands memory]]
 
-test parse-1.1 {Tcl_ParseCommand procedure, computing string length} testparser {
-    testparser [bytestring "foo\0 bar"] -1
+test parse-1.1 {Tcl_ParseCommand procedure, computing string length} {testparser testbytestring} {
+    testparser [testbytestring "foo\0 bar"] -1
 } {- foo 1 simple foo 1 text foo 0 {}}
 test parse-1.2 {Tcl_ParseCommand procedure, computing string length} testparser {
     testparser "foo bar" -1
@@ -299,9 +302,11 @@ test parse-6.15 {ParseTokens procedure, backslash-newline} testparser {
 test parse-6.16 {ParseTokens procedure, backslash substitution} testparser {
     testparser {\n\a\x7f} 0
 } {- {\n\a\x7f} 1 word {\n\a\x7f} 3 backslash {\n} 0 backslash {\a} 0 backslash {\x7f} 0 {}}
-test parse-6.17 {ParseTokens procedure, null characters} testparser {
-    testparser [bytestring "foo\0zz"] 0
-} "- [bytestring foo\0zz] 1 word [bytestring foo\0zz] 3 text foo 0 text [bytestring \0] 0 text zz 0 {}"
+test parse-6.17 {ParseTokens procedure, null characters} {testparser testbytestring} {
+    expr {[testparser [testbytestring "foo\0zz"] 0] eq
+"- [testbytestring foo\0zz] 1 word [testbytestring foo\0zz] 3 text foo 0 text [testbytestring \0] 0 text zz 0 {}"
+	}
+} 1
 test parse-6.18 {ParseTokens procedure, seek past numBytes for close-bracket} testparser {
     # Test for Bug 681841
     list [catch {testparser {[a]} 2} msg] $msg
@@ -438,7 +443,7 @@ test parse-8.12 {Tcl_EvalObjv procedure, TCL_EVAL_INVOKE} {
 
 
 test parse-9.1 {Tcl_LogCommandInfo, line numbers} testevalex {
-    catch {unset x}
+    unset -nocomplain x
     list [catch {testevalex {for {} 1 {} {
 
 
@@ -479,7 +484,7 @@ test parse-10.3 {Tcl_EvalTokens, nested commands} testevalex {
     testevalex {concat [expr 2 + 6]}
 } {8}
 test parse-10.4 {Tcl_EvalTokens, nested commands} testevalex {
-    catch {unset a}
+    unset -nocomplain a
     list [catch {testevalex {concat xxx[expr $a]}} msg] $msg
 } {1 {can't read "a": no such variable}}
 test parse-10.5 {Tcl_EvalTokens, simple variables} testevalex {
@@ -487,21 +492,21 @@ test parse-10.5 {Tcl_EvalTokens, simple variables} testevalex {
     testevalex {concat $a}
 } {hello}
 test parse-10.6 {Tcl_EvalTokens, array variables} testevalex {
-    catch {unset a}
+    unset -nocomplain a
     set a(12) 46
     testevalex {concat $a(12)}
 } {46}
 test parse-10.7 {Tcl_EvalTokens, array variables} testevalex {
-    catch {unset a}
+    unset -nocomplain a
     set a(12) 46
     testevalex {concat $a(1[expr 3 - 1])}
 } {46}
 test parse-10.8 {Tcl_EvalTokens, array variables} testevalex {
-    catch {unset a}
+    unset -nocomplain a
     list [catch {testevalex {concat $x($a)}} msg] $msg
 } {1 {can't read "a": no such variable}}
 test parse-10.9 {Tcl_EvalTokens, array variables} testevalex {
-    catch {unset a}
+    unset -nocomplain a
     list [catch {testevalex {concat xyz$a(1)}} msg] $msg
 } {1 {can't read "a(1)": no such variable}}
 test parse-10.10 {Tcl_EvalTokens, object values} testevalex {
@@ -541,11 +546,11 @@ test parse-11.2 {Tcl_EvalEx, error while parsing} testevalex {
     list [catch {testevalex {concat "abc}} msg] $msg
 } {1 {missing "}}
 test parse-11.3 {Tcl_EvalEx, error while collecting words} testevalex {
-    catch {unset a}
+    unset -nocomplain a
     list [catch {testevalex {concat xyz $a}} msg] $msg
 } {1 {can't read "a": no such variable}}
 test parse-11.4 {Tcl_EvalEx, error in Tcl_EvalObjv call} testevalex {
-    catch {unset a}
+    unset -nocomplain a
     list [catch {testevalex {_bogus_ a b c d}} msg] $msg
 } {1 {invalid command name "_bogus_"}}
 test parse-11.5 {Tcl_EvalEx, exceptional return} testevalex {
@@ -564,7 +569,7 @@ test parse-11.8 {Tcl_EvalEx, multiple commands in script} testevalex {
     }] $a $c
 } {d b d}
 test parse-11.9 {Tcl_EvalEx, freeing memory after error} testevalex {
-    catch {unset a}
+    unset -nocomplain a
     list [catch {testevalex {concat a b c d e f g h i j k l m n o p q r s t u v w x y z $a}} msg] $msg
 } {1 {can't read "a": no such variable}}
 test parse-11.10 {Tcl_EvalTokens, empty commands} testevalex {
@@ -658,6 +663,9 @@ test parse-12.24 {Tcl_ParseVarName procedure, missing close paren in array refer
 test parse-12.25 {Tcl_ParseVarName procedure, nested array reference} testparser {
     testparser {$x(a$y(b$z))} 0
 } {- {$x(a$y(b$z))} 1 word {$x(a$y(b$z))} 8 variable {$x(a$y(b$z))} 7 text x 0 text a 0 variable {$y(b$z)} 4 text y 0 text b 0 variable {$z} 1 text z 0 {}}
+test parse-12.26 {Tcl_ParseVarName [d2ffcca163] non-ascii} testparser {
+    testparser "$\u0433" -1
+} "- {$\u0433} 1 word {$\u0433} 2 text {$} 0 text \u0433 0 {}"
 
 test parse-13.1 {Tcl_ParseVar procedure} testparsevar {
     set abc 24
@@ -670,16 +678,36 @@ test parse-13.3 {Tcl_ParseVar procedure, no variable name} testparsevar {
     testparsevar {$.123}
 } {{$} .123}
 test parse-13.4 {Tcl_ParseVar procedure, error looking up variable} testparsevar {
-    catch {unset abc}
+    unset -nocomplain abc
     list [catch {testparsevar {$abc}} msg] $msg
 } {1 {can't read "abc": no such variable}}
 test parse-13.5 {Tcl_ParseVar procedure, error looking up variable} testparsevar {
-    catch {unset abc}
+    unset -nocomplain abc
     list [catch {testparsevar {$abc([bogus x y z])}} msg] $msg
 } {1 {invalid command name "bogus"}}
+test parse-13.6 {Tcl_ParseVar memory leak} -constraints memory -setup {
+    proc getbytes {} {
+	return [lindex [split [memory info] \n] 3 3]
+    }
+} -body {
+    set a() foo
+    set end [getbytes]
+    for {set i 0} {$i < 5} {incr i} {
+	set vn {}
+	set res [testparsevar [append vn $ a([string repeat {[]} 19]) bar]]
+	if {$res ne {foo bar}} {error "Unexpected result: $res"}
 
-test parse-14.1 {Tcl_ParseBraces procedure, computing string length} testparser {
-    testparser [bytestring "foo\0 bar"] -1
+	set tmp $end
+	set end [getbytes]
+    }
+    expr {$end - $tmp}
+} -cleanup {
+    unset -nocomplain a end i vn res tmp
+    rename getbytes {}
+} -result 0
+
+test parse-14.1 {Tcl_ParseBraces procedure, computing string length} {testparser testbytestring} {
+    testparser [testbytestring "foo\0 bar"] -1
 } {- foo 1 simple foo 1 text foo 0 {}}
 test parse-14.2 {Tcl_ParseBraces procedure, computing string length} testparser {
     testparser "foo bar" -1
@@ -715,8 +743,8 @@ test parse-14.12 {Tcl_ParseBraces procedure, missing close brace} testparser {
     list [catch {testparser "foo \{xy\\\nz" 0} msg] $msg $::errorInfo
 } {1 {missing close-brace} missing\ close-brace\n\ \ \ \ (remainder\ of\ script:\ \"\{xy\\\nz\")\n\ \ \ \ invoked\ from\ within\n\"testparser\ \"foo\ \\\{xy\\\\\\nz\"\ 0\"}
 
-test parse-15.1 {Tcl_ParseQuotedString procedure, computing string length} testparser {
-    testparser [bytestring "foo\0 bar"] -1
+test parse-15.1 {Tcl_ParseQuotedString procedure, computing string length} {testparser testbytestring} {
+    testparser [testbytestring "foo\0 bar"] -1
 } {- foo 1 simple foo 1 text foo 0 {}}
 test parse-15.2 {Tcl_ParseQuotedString procedure, computing string length} testparser {
     testparser "foo bar" -1
@@ -881,11 +909,11 @@ test parse-15.53 {CommandComplete procedure} "
 test parse-15.54 {CommandComplete procedure} "
     info complete \"foo bar;# \{\"
 " 1
-test parse-15.55 {CommandComplete procedure} {
-    info complete "set x [bytestring \0]; puts hi"
+test parse-15.55 {CommandComplete procedure} testbytestring {
+    info complete "set x [testbytestring \0]; puts hi"
 } 1
-test parse-15.56 {CommandComplete procedure} {
-    info complete "set x [bytestring \0]; \{"
+test parse-15.56 {CommandComplete procedure} testbytestring {
+    info complete "set x [testbytestring \0]; \{"
 } 0
 test parse-15.57 {CommandComplete procedure} {
     info complete "# Comment should be complete command"
@@ -893,9 +921,9 @@ test parse-15.57 {CommandComplete procedure} {
 test parse-15.58 {CommandComplete procedure, memory leaks} {
     info complete "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22"
 } 1
-test parse-15.59 {CommandComplete procedure} {
+test parse-15.59 {CommandComplete procedure} testbytestring {
     # Test for Tcl Bug 684744
-    info complete [encoding convertfrom identity "\x00;if 1 \{"]
+    info complete [testbytestring "\x00;if 1 \{"]
 } 0
 test parse-15.60 {CommandComplete procedure} {
     # Test for Tcl Bug 1968882
@@ -1090,6 +1118,19 @@ test parse-20.12 {TclParseBackslash: truncated escape} testparser {
     testparser {\x12X} 5
 } {- {\x12X} 1 word {\x12X} 2 backslash {\x12} 0 text X 0 {}}
 
+test parse-21.0 {Bug 1884496} testevent {
+    set ::script {testevent delete a; set a [p]; set ::done $a}
+    proc ::p {} {string first s $::script}
+    testevent queue a head $::script
+    vwait done
+} {}
+test parse-21.1 {TCL_EVAL_DIRECT coverage} testevent {
+    testevent queue a head {testevent delete a; \
+	set ::done [dict get [info frame 0] line]}
+    vwait done
+    set ::done
+} 2
+
 cleanupTests
 }
 
diff --git a/tests/parseExpr.test b/tests/parseExpr.test
index 7910974..ef05454 100644
--- a/tests/parseExpr.test
+++ b/tests/parseExpr.test
@@ -8,10 +8,8 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest 2
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2
+namespace import ::tcltest::*
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
@@ -22,6 +20,7 @@ catch [list package require -exact Tcltest [info patchlevel]]
 # of "<<" are integers.
 
 testConstraint testexprparser [llength [info commands testexprparser]]
+testConstraint testbytestring [llength [info commands testbytestring]]
 
 # Big test for correct ordering of data in [expr]
 
@@ -83,8 +82,8 @@ testConstraint ieeeFloatingPoint [testIEEE]
 
 ######################################################################
 
-test parseExpr-1.1 {Tcl_ParseExpr procedure, computing string length} testexprparser {
-    testexprparser [bytestring "1+2\0 +3"] -1
+test parseExpr-1.1 {Tcl_ParseExpr procedure, computing string length} {testexprparser testbytestring} {
+    testexprparser [testbytestring "1+2\0 +3"] -1
 } {- {} 0 subexpr 1+2 5 operator + 0 subexpr 1 1 text 1 0 subexpr 2 1 text 2 0 {}}
 test parseExpr-1.2 {Tcl_ParseExpr procedure, computing string length} testexprparser {
     testexprparser "1  + 2" -1
@@ -1065,7 +1064,16 @@ test parseExpr-22.18 {Bug 3401704} -constraints testexprparser -body {
     dict get $o -errorcode
 } -result {TCL PARSE EXPR BADNUMBER BINARY}
 
+test parseExpr-22.19 {Bug d2ffcca163} -constraints testexprparser -body {
+    testexprparser \u0433 -1
+} -returnCodes error -match glob -result {*invalid character*}
+test parseExpr-22.20 {Bug d2ffcca163} -constraints testexprparser -body {
+    testexprparser \u043f -1
+} -returnCodes error -match glob -result {*invalid character*}
+test parseExpr-22.21 {Bug d2ffcca163} -constraints testexprparser -body {
+    testexprparser in\u0433(0) -1
+} -returnCodes error -match glob -result {missing operand*}
 
 # cleanup
-::tcltest::cleanupTests
+cleanupTests
 return
diff --git a/tests/parseOld.test b/tests/parseOld.test
index 0edcbf0..a6e07a2b 100644
--- a/tests/parseOld.test
+++ b/tests/parseOld.test
@@ -13,15 +13,14 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest
-    namespace import -force ::tcltest::*
-}
+package require tcltest
+namespace import ::tcltest::*
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
 
 testConstraint testwordend [llength [info commands testwordend]]
+testConstraint testbytestring [llength [info commands testbytestring]]
 
 # Save the argv value for restoration later
 set savedArgv $argv
@@ -166,25 +165,25 @@ test parseOld-5.6 {variable substitution} {
     set msg
 } {can't read "_non_existent_": no such variable}
 test parseOld-5.7 {array variable substitution} {
-    catch {unset a}
+    unset -nocomplain a
     set a(xyz) 123
     set b $a(xyz)foo
     set b
 } 123foo
 test parseOld-5.8 {array variable substitution} {
-    catch {unset a}
+    unset -nocomplain a
     set "a(x y z)" 123
     set b $a(x y z)foo
     set b
 } 123foo
 test parseOld-5.9 {array variable substitution} {
-    catch {unset a}; catch {unset qqq}
+    unset -nocomplain a qqq
     set "a(x y z)" qqq
     set $a([format x]\ y [format z]) foo
     set qqq
 } foo
 test parseOld-5.10 {array variable substitution} {
-    catch {unset a}
+    unset -nocomplain a
     list [catch {set b $a(22)} msg] $msg
 } {1 {can't read "a(22)": no such variable}}
 test parseOld-5.11 {array variable substitution} {
@@ -194,9 +193,9 @@ test parseOld-5.11 {array variable substitution} {
 test parseOld-5.12 {empty array name support} {
     list [catch {set b a$()} msg] $msg
 } {1 {can't read "()": no such variable}}
-catch {unset a}
+unset -nocomplain a
 test parseOld-5.13 {array variable substitution} {
-    catch {unset a}
+    unset -nocomplain a
     set long {This is a very long variable, long enough to cause storage \
 	allocation to occur in Tcl_ParseVar.  If that storage isn't getting \
 	freed up correctly, then a core leak will occur when this test is \
@@ -211,13 +210,13 @@ test parseOld-5.13 {array variable substitution} {
 	run.  This text is probably beginning to sound like drivel, but I've \
 	run out of things to say and I need more characters still.}}}
 test parseOld-5.14 {array variable substitution} {
-    catch {unset a}; catch {unset b}; catch {unset a1}
+    unset -nocomplain a b a1
     set a1(22) foo
     set a(foo) bar
     set b $a($a1(22))
     set b
 } bar
-catch {unset a}; catch {unset a1}
+unset -nocomplain a a1
 
 test parseOld-7.1 {backslash substitution} {
     set a "\a\c\n\]\}"
@@ -263,15 +262,15 @@ test parseOld-7.10 {backslash substitution} {
 test parseOld-7.11 {backslash substitution} {
     eval "list a \"b c\"\\\nd e"
 } {a {b c} d e}
-test parseOld-7.12 {backslash substitution} {
-    list \ua2
-} [bytestring "\xc2\xa2"]
-test parseOld-7.13 {backslash substitution} {
-    list \u4e21
-} [bytestring "\xe4\xb8\xa1"]
-test parseOld-7.14 {backslash substitution} {
-    list \u4e2k
-} [bytestring "\xd3\xa2k"]
+test parseOld-7.12 {backslash substitution} testbytestring {
+    expr {[list \ua2] eq [testbytestring "\xc2\xa2"]}
+} 1
+test parseOld-7.13 {backslash substitution} testbytestring {
+    expr {[list \u4e21] eq [testbytestring "\xe4\xb8\xa1"]}
+} 1
+test parseOld-7.14 {backslash substitution} testbytestring {
+    expr {[list \u4e2k] eq [testbytestring "\xd3\xa2k"]}
+} 1
 
 # Semi-colon.
 
diff --git a/tests/pkgMkIndex.test b/tests/pkgMkIndex.test
index 0fe394e..84c82ce 100644
--- a/tests/pkgMkIndex.test
+++ b/tests/pkgMkIndex.test
@@ -8,10 +8,8 @@
 # Copyright (c) 1998-1999 by Scriptics Corporation.
 # All rights reserved.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest 2
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2
+namespace import ::tcltest::*
 
 set fullPkgPath [makeDirectory pkg]
 
@@ -45,7 +43,7 @@ proc pkgtest::parseArgs { args } {
 	set a [lindex $args $iarg]
 	if {[regexp {^-} $a]} {
 	    lappend options $a
-	    if {[string compare -load $a] == 0} {
+	    if {$a eq "-load"} {
 		incr iarg
 		lappend options [lindex $args $iarg]
 	    }
@@ -81,7 +79,7 @@ proc pkgtest::parseIndex { filePath } {
 	$slave eval {
 	    rename package package_original
 	    proc package { args } {
-		if {[string compare [lindex $args 0] ifneeded] == 0} {
+		if {[lindex $args 0] eq "ifneeded"} {
 		    set pkg [lindex $args 1]
 		    set ver [lindex $args 2]
 		    set ::PKGS($pkg:$ver) [lindex $args 3]
@@ -111,9 +109,9 @@ proc pkgtest::parseIndex { filePath } {
 	foreach k [lsort [array names P]] {
 	    lappend PKGS $k $P($k)
 	}
-    } err]} {
-	set ei $::errorInfo
-	set ec $::errorCode
+    } err opts]} {
+	set ei [dict get $opts -errorinfo]
+	set ec [dict get $opts -errorcode]
 
 	catch {interp delete $slave}
 
diff --git a/tests/platform.test b/tests/platform.test
index aab7c78..6596975 100644
--- a/tests/platform.test
+++ b/tests/platform.test
@@ -9,10 +9,14 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2
+
+namespace eval ::tcl::test::platform {
+    namespace import ::tcltest::testConstraint
+    namespace import ::tcltest::test
+    namespace import ::tcltest::cleanupTests
+
+    variable ::tcl_platform
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
@@ -54,7 +58,10 @@ test platform-3.1 {CPU ID on Windows/UNIX} \
     -result {^(?:AuthenticAMD|CentaurHauls|CyrixInstead|GenuineIntel)$}
 
 # cleanup
-::tcltest::cleanupTests
+cleanupTests
+
+}
+namespace delete ::tcl::test::platform
 return
 
 # Local Variables:
diff --git a/tests/reg.test b/tests/reg.test
index a0ea850..e6ce42c 100644
--- a/tests/reg.test
+++ b/tests/reg.test
@@ -1080,6 +1080,84 @@ test reg-33.13 {Bug 1810264 - infinite loop} {
 test reg-33.14 {Bug 1810264 - super-expensive expression} nonPortable {
     regexp {(x{200}){200}$y} {x}
 } 0
+test reg-33.15 {Bug 3603557 - an "in the wild" RE} {
+    lindex [regexp -expanded -about {
+	^TETRA_MODE_CMD				# Message Type
+	([[:blank:]]+)				# Pad
+	(ETS_1_1|ETS_1_2|ETS_2_2)		# SystemCode
+	([[:blank:]]+)				# Pad
+	(CONTINUOUS|CARRIER|MCCH|TRAFFIC)	# SharingMode
+	([[:blank:]]+)				# Pad
+	([[:digit:]]{1,2})			# ColourCode
+	([[:blank:]]+)				# Pad
+	(1|2|3|4|6|9|12|18)			# TSReservedFrames
+	([[:blank:]]+)				# Pad
+	(PASS|TRUE|FAIL|FALSE)			# UPlaneDTX
+	([[:blank:]]+)				# Pad
+	(PASS|TRUE|FAIL|FALSE)			# Frame18Extension
+	([[:blank:]]+)				# Pad
+	([[:digit:]]{1,4})			# MCC
+	([[:blank:]]+)				# Pad
+	([[:digit:]]{1,5})			# MNC
+	([[:blank:]]+)				# Pad
+	(BOTH|BCAST|ENQRY|NONE)			# NbrCellBcast
+	([[:blank:]]+)				# Pad
+	(UNKNOWN|LOW|MEDIUM|HIGH)		# CellServiceLevel
+	([[:blank:]]+)				# Pad
+	(PASS|TRUE|FAIL|FALSE)			# LateEntryInfo
+	([[:blank:]]+)				# Pad
+	(300|400)				# FrequencyBand
+	([[:blank:]]+)				# Pad
+	(NORMAL|REVERSE)			# ReverseOperation
+	([[:blank:]]+)				# Pad
+	(NONE|\+6\.25|\-6\.25|\+12\.5)		# Offset
+	([[:blank:]]+)				# Pad
+	(10)					# DuplexSpacing
+	([[:blank:]]+)				# Pad
+	([[:digit:]]{1,4})			# MainCarrierNr
+	([[:blank:]]+)				# Pad
+	(0|1|2|3)				# NrCSCCH
+	([[:blank:]]+)				# Pad
+	(15|20|25|30|35|40|45)			# MSTxPwrMax
+	([[:blank:]]+)				# Pad
+	(\-125|\-120|\-115|\-110|\-105|\-100|\-95|\-90|\-85|\-80|\-75|\-70|\-65|\-60|\-55|\-50)
+						# RxLevAccessMin
+	([[:blank:]]+)				# Pad
+	(\-53|\-51|\-49|\-47|\-45|\-43|\-41|\-39|\-37|\-35|\-33|\-31|\-29|\-27|\-25|\-23)
+						# AccessParameter
+	([[:blank:]]+)				# Pad
+	(DISABLE|[[:digit:]]{3,4})		# RadioDLTimeout
+	([[:blank:]]+)				# Pad
+	(\-[[:digit:]]{2,3})			# RSSIThreshold
+	([[:blank:]]+)				# Pad
+	([[:digit:]]{1,5})			# CCKIdSCKVerNr
+	([[:blank:]]+)				# Pad
+	([[:digit:]]{1,5})			# LocationArea
+	([[:blank:]]+)				# Pad
+	([(1|0)]{16})				# SubscriberClass
+	([[:blank:]]+)				# Pad
+	([(1|0)]{12})				# BSServiceDetails
+	([[:blank:]]+)				# Pad
+	(RANDOMIZE|IMMEDIATE|[[:digit:]]{1,2})	# IMM
+	([[:blank:]]+)				# Pad
+	([[:digit:]]{1,2})			# WT
+	([[:blank:]]+)				# Pad
+	([[:digit:]]{1,2})			# Nu
+	([[:blank:]]+)				# Pad
+	([0-1])					# FrameLngFctr
+	([[:blank:]]+)				# Pad
+	([[:digit:]]{1,2})			# TSPtr
+	([[:blank:]]+)				# Pad
+	([0-7])					# MinPriority
+	([[:blank:]]+)				# Pad
+	(PASS|TRUE|FAIL|FALSE)			# ExtdSrvcsEnabled
+	([[:blank:]]+)				# Pad
+	(.*)					# ConditionalFields
+    }] 0
+} 68
+test reg-33.16 {Bug [8d2c0da36d]- another "in the wild" RE} {
+    lindex [regexp -about "^MRK:client1: =1339 14HKelly Talisman 10011000 (\[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]*) \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 8 0 8 0 0 0 77 77 1 1 2 0 11 { 1 3 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 1 13HC6 My Creator 2 3 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 1 31HC7 Slightly offensive name, huh 3 8 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 1 23HE-mail:kelly@hotbox.com 4 9 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 1 17Hcompface must die 5 10 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 0 3HAir 6 12 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 1 14HPGP public key 7 13 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 1 16Hkelly@hotbox.com 8 30 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 0 12H2 text/plain 9 30 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 0 13H2 x-kom/basic 10 33 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 1 1H0 11 14 8 \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* \[0-9\]* 00000000 1 1H3 }\r?"] 0
+} 1
 
 # cleanup
 ::tcltest::cleanupTests
diff --git a/tests/regexp.test b/tests/regexp.test
index 7cafd1b..a83c99b 100644
--- a/tests/regexp.test
+++ b/tests/regexp.test
@@ -241,13 +241,13 @@ test regexp-5.5 {exercise cache of compiled expressions} {
 
 test regexp-6.1 {regexp errors} {
     list [catch {regexp a} msg] $msg
-} {1 {wrong # args: should be "regexp ?-switch ...? exp string ?matchVar? ?subMatchVar ...?"}}
+} {1 {wrong # args: should be "regexp ?-option ...? exp string ?matchVar? ?subMatchVar ...?"}}
 test regexp-6.2 {regexp errors} {
     list [catch {regexp -nocase a} msg] $msg
-} {1 {wrong # args: should be "regexp ?-switch ...? exp string ?matchVar? ?subMatchVar ...?"}}
+} {1 {wrong # args: should be "regexp ?-option ...? exp string ?matchVar? ?subMatchVar ...?"}}
 test regexp-6.3 {regexp errors} {
     list [catch {regexp -gorp a} msg] $msg
-} {1 {bad switch "-gorp": must be -all, -about, -indices, -inline, -expanded, -line, -linestop, -lineanchor, -nocase, -start, or --}}
+} {1 {bad option "-gorp": must be -all, -about, -indices, -inline, -expanded, -line, -linestop, -lineanchor, -nocase, -start, or --}}
 test regexp-6.4 {regexp errors} {
     list [catch {regexp a( b} msg] $msg
 } {1 {couldn't compile regular expression pattern: parentheses () not balanced}}
@@ -441,19 +441,19 @@ test regexp-10.5 {inverse partial newline sensitivity in regsub} {
 
 test regexp-11.1 {regsub errors} {
     list [catch {regsub a b} msg] $msg
-} {1 {wrong # args: should be "regsub ?-switch ...? exp string subSpec ?varName?"}}
+} {1 {wrong # args: should be "regsub ?-option ...? exp string subSpec ?varName?"}}
 test regexp-11.2 {regsub errors} {
     list [catch {regsub -nocase a b} msg] $msg
-} {1 {wrong # args: should be "regsub ?-switch ...? exp string subSpec ?varName?"}}
+} {1 {wrong # args: should be "regsub ?-option ...? exp string subSpec ?varName?"}}
 test regexp-11.3 {regsub errors} {
     list [catch {regsub -nocase -all a b} msg] $msg
-} {1 {wrong # args: should be "regsub ?-switch ...? exp string subSpec ?varName?"}}
+} {1 {wrong # args: should be "regsub ?-option ...? exp string subSpec ?varName?"}}
 test regexp-11.4 {regsub errors} {
     list [catch {regsub a b c d e f} msg] $msg
-} {1 {wrong # args: should be "regsub ?-switch ...? exp string subSpec ?varName?"}}
+} {1 {wrong # args: should be "regsub ?-option ...? exp string subSpec ?varName?"}}
 test regexp-11.5 {regsub errors} {
     list [catch {regsub -gorp a b c} msg] $msg
-} {1 {bad switch "-gorp": must be -all, -nocase, -expanded, -line, -linestop, -lineanchor, -start, or --}}
+} {1 {bad option "-gorp": must be -all, -nocase, -expanded, -line, -linestop, -lineanchor, -start, or --}}
 test regexp-11.6 {regsub errors} {
     list [catch {regsub -nocase a( b c d} msg] $msg
 } {1 {couldn't compile regular expression pattern: parentheses () not balanced}}
@@ -819,6 +819,67 @@ test regexp-22.1 {Bug 1810038} {
 test regexp-22.2 {regexp compile and backrefs, Bug 1857126} {
     regexp -- {([bc])\1} bb
 } 1
+test regexp-22.3 {Bug 3604074} {
+    # This will hang in interps where the bug is not fixed
+    regexp ((((((((a)*)*)*)*)*)*)*)* a
+} 1
+test regexp-22.4 {Bug 3606139} -setup {
+    interp alias {} a {} string repeat a
+} -body {
+    # This crashes in interps where the bug is not fixed
+    regexp [join [list [a 160]([a 55])[a 668]([a 55])[a 669]([a 55]) \
+	[a 668]([a 55])[a 649]([a 55])[a 668]([a 55])[a 668]([a 55]) \
+	[a 672]([a 55])[a 669]([a 55])[a 671]([a 55])[a 671]([a 55]) \
+	[a 672]([a 55])[a 652]([a 55])[a 672]([a 55])[a 671]([a 55]) \
+	[a 671]([a 55])[a 671]([a 55])[a 653]([a 55])[a 672]([a 55]) \
+	[a 653]([a 55])[a 672]([a 55])[a 672]([a 55])[a 652]([a 55]) \
+	[a 671]([a 55])[a 652]([a 55])[a 652]([a 55])[a 672]([a 55]) \
+	[a 672]([a 55])[a 672]([a 55])[a 653]([a 55])[a 671]([a 55]) \
+	[a 669]([a 55])[a 649]([a 55])[a 668]([a 55])[a 668]([a 55]) \
+	[a 668]([a 55])[a 650]([a 55])[a 650]([a 55])[a 672]([a 55]) \
+	[a 669]([a 55])[a 669]([a 55])[a 668]([a 55])[a 668]([a 55]) \
+	[a 668]([a 55])[a 669]([a 55])[a 672]([a 55])[a 669]([a 55]) \
+	[a 669]([a 55])[a 669]([a 55])[a 669]([a 55])[a 672]([a 55]) \
+	[a 670]([a 55])[a 671]([a 55])[a 672]([a 55])[a 672]([a 55]) \
+	[a 671]([a 55])[a 671]([a 55])[a 672]([a 55])[a 669]([a 55]) \
+	[a 668]([a 55])[a 668]([a 55])[a 669]([a 55])[a 668]([a 55]) \
+	[a 669]([a 55])[a 668]([a 55])[a 669]([a 55])[a 669]([a 55]) \
+	[a 668]([a 55])[a 668]([a 55])[a 669]([a 55])[a 668]([a 55]) \
+	[a 669]([a 55])[a 669]([a 55])[a 669]([a 55])[a 669]([a 55]) \
+	[a 668]([a 55])[a 669]([a 55])[a 672]([a 55])[a 669]([a 55]) \
+	[a 669]([a 55])[a 669]([a 55])[a 669]([a 55])[a 668]([a 55]) \
+	[a 669]([a 55])[a 669]([a 55])[a 668]([a 55])[a 668]([a 55]) \
+	[a 668]([a 55])[a 669]([a 55])[a 668]([a 55])[a 669]([a 55]) \
+	[a 672]([a 55])[a 669]([a 55])[a 669]([a 55])[a 710]([a 55]) \
+	[a 668]([a 55])[a 669]([a 55])[a 668]([a 55])[a 669]([a 55]) \
+	[a 668]([a 55])[a 669]([a 55])[a 668]([a 55])[a 668]([a 55]) \
+	[a 668]([a 55])[a 668]([a 55])[a 668]([a 55])[a 669]([a 55]) \
+	[a 672]([a 55])[a 669]([a 55])[a 669]([a 55])[a 668]([a 55]) \
+	[a 669]([a 55])[a 669]([a 55])[a 668]([a 55])[a 668]([a 55]) \
+	[a 668]([a 55])[a 668]([a 55])[a 668]([a 55])[a 668]([a 55]) \
+	[a 667]([a 55])[a 668]([a 55])[a 669]([a 55])[a 668]([a 55]) \
+	[a 671]([a 55])[a 669]([a 55])[a 668]([a 55])[a 669]([a 55]) \
+	[a 669]([a 55])[a 669]([a 55])[a 668]([a 55])[a 669]([a 55]) \
+	[a 668]([a 55])[a 710]([a 55])[a 668]([a 55])[a 668]([a 55]) \
+	[a 668]([a 55])[a 668]([a 55])[a 668]([a 55])[a 511]] {}] a
+} -cleanup {
+    rename a {}
+} -returnCodes 1 -result {couldn't compile regular expression pattern: nfa has too many states}
+test regexp-22.5 {Bug 3610026} -setup {
+    set e {}
+    set cp 99
+    while {$cp < 32864} {
+	append e [format %c [incr cp]]
+    }
+} -body {
+    regexp -about $e
+} -cleanup {
+    unset -nocomplain e cp
+} -returnCodes error  -match glob -result {*too many colors*}
+test regexp-22.6 {Bug 6585b21ca8} {
+    expr {[regexp {(\w).*?\1} Programmer m] ? $m : "<NONE>"}
+} rogr
+
 
 test regexp-23.1 {regexp -all and -line} {
     set string ""
diff --git a/tests/regexpComp.test b/tests/regexpComp.test
index 94fb90e..01ef06d 100644
--- a/tests/regexpComp.test
+++ b/tests/regexpComp.test
@@ -316,17 +316,17 @@ test regexpComp-6.1 {regexp errors} {
     evalInProc {
 	list [catch {regexp a} msg] $msg
     }
-} {1 {wrong # args: should be "regexp ?-switch ...? exp string ?matchVar? ?subMatchVar ...?"}}
+} {1 {wrong # args: should be "regexp ?-option ...? exp string ?matchVar? ?subMatchVar ...?"}}
 test regexpComp-6.2 {regexp errors} {
     evalInProc {
 	list [catch {regexp -nocase a} msg] $msg
     }
-} {1 {wrong # args: should be "regexp ?-switch ...? exp string ?matchVar? ?subMatchVar ...?"}}
+} {1 {wrong # args: should be "regexp ?-option ...? exp string ?matchVar? ?subMatchVar ...?"}}
 test regexpComp-6.3 {regexp errors} {
     evalInProc {
 	list [catch {regexp -gorp a} msg] $msg
     }
-} {1 {bad switch "-gorp": must be -all, -about, -indices, -inline, -expanded, -line, -linestop, -lineanchor, -nocase, -start, or --}}
+} {1 {bad option "-gorp": must be -all, -about, -indices, -inline, -expanded, -line, -linestop, -lineanchor, -nocase, -start, or --}}
 test regexpComp-6.4 {regexp errors} {
     evalInProc {
 	list [catch {regexp a( b} msg] $msg
@@ -526,6 +526,11 @@ test regexpComp-9.6 {-all option to regsub} {
 	list [regsub -all ^ xxx 123 foo] $foo
     }
 } {1 123xxx}
+test regexpComp-9.7 {Bug 84af1192f5: -all option to regsub} {
+    evalInProc {
+	regsub -all {\(.*} 123(qwe) ""
+    }
+} 123
 
 test regexpComp-10.1 {expanded syntax in regsub} {
     evalInProc {
@@ -562,27 +567,27 @@ test regexpComp-11.1 {regsub errors} {
     evalInProc {
 	list [catch {regsub a b} msg] $msg
     }
-} {1 {wrong # args: should be "regsub ?-switch ...? exp string subSpec ?varName?"}}
+} {1 {wrong # args: should be "regsub ?-option ...? exp string subSpec ?varName?"}}
 test regexpComp-11.2 {regsub errors} {
     evalInProc {
 	list [catch {regsub -nocase a b} msg] $msg
     }
-} {1 {wrong # args: should be "regsub ?-switch ...? exp string subSpec ?varName?"}}
+} {1 {wrong # args: should be "regsub ?-option ...? exp string subSpec ?varName?"}}
 test regexpComp-11.3 {regsub errors} {
     evalInProc {
 	list [catch {regsub -nocase -all a b} msg] $msg
     }
-} {1 {wrong # args: should be "regsub ?-switch ...? exp string subSpec ?varName?"}}
+} {1 {wrong # args: should be "regsub ?-option ...? exp string subSpec ?varName?"}}
 test regexpComp-11.4 {regsub errors} {
     evalInProc {
 	list [catch {regsub a b c d e f} msg] $msg
     }
-} {1 {wrong # args: should be "regsub ?-switch ...? exp string subSpec ?varName?"}}
+} {1 {wrong # args: should be "regsub ?-option ...? exp string subSpec ?varName?"}}
 test regexpComp-11.5 {regsub errors} {
     evalInProc {
 	list [catch {regsub -gorp a b c} msg] $msg
     }
-} {1 {bad switch "-gorp": must be -all, -nocase, -expanded, -line, -linestop, -lineanchor, -start, or --}}
+} {1 {bad option "-gorp": must be -all, -nocase, -expanded, -line, -linestop, -lineanchor, -start, or --}}
 test regexpComp-11.6 {regsub errors} {
     evalInProc {
 	list [catch {regsub -nocase a( b c d} msg] $msg
diff --git a/tests/rename.test b/tests/rename.test
index 1fa0441..ebf5425 100644
--- a/tests/rename.test
+++ b/tests/rename.test
@@ -140,6 +140,13 @@ test rename-4.7 {reentrancy issues with command deletion and renaming} testdel {
 if {[info exists env(value)]} {
     unset env(value)
 }
+test rename-4.8 {Bug a16752c252} testdel {
+    set x broken
+    testdel {} foo {set x ok}
+    proc foo args {}
+    rename foo {}
+    return -level 0 $x[unset x]
+} ok
 
 # Save the unknown procedure which is modified by the following test.
 
diff --git a/tests/result.test b/tests/result.test
index 3391ce1..9e8a66b 100644
--- a/tests/result.test
+++ b/tests/result.test
@@ -10,10 +10,8 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest 2
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2
+namespace import ::tcltest::*
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
diff --git a/tests/safe.test b/tests/safe.test
index 4a2792e..859f352 100644
--- a/tests/safe.test
+++ b/tests/safe.test
@@ -425,6 +425,19 @@ test safe-10.1 {testing statics loading} -constraints TcltestPackage -setup {
 } -returnCodes error -cleanup {
     safe::interpDelete $i
 } -result {can't use package in a safe interpreter: no Safepkg1_SafeInit procedure}
+test safe-10.1.1 {testing statics loading} -constraints TcltestPackage -setup {
+    set i [safe::interpCreate]
+} -body {
+    catch {interp eval $i {load {} Safepkg1}} m o
+    dict get $o -errorinfo
+} -returnCodes ok -cleanup {
+    unset -nocomplain m o
+    safe::interpDelete $i
+} -result {can't use package in a safe interpreter: no Safepkg1_SafeInit procedure
+    invoked from within
+"load {} Safepkg1"
+    invoked from within
+"interp eval $i {load {} Safepkg1}"}
 test safe-10.2 {testing statics loading / -nostatics} -constraints TcltestPackage -body {
     set i [safe::interpCreate -nostatics]
     interp eval $i {load {} Safepkg1}
@@ -444,6 +457,18 @@ test safe-10.4 {testing nested statics loading / -nestedloadok} -constraints Tcl
 } -returnCodes error -cleanup {
     safe::interpDelete $i
 } -result {can't use package in a safe interpreter: no Safepkg1_SafeInit procedure}
+test safe-10.4.1 {testing nested statics loading / -nestedloadok} -constraints TcltestPackage -body {
+    set i [safe::interpCreate -nestedloadok]
+    catch {interp eval $i {interp create x; load {} Safepkg1 x}} m o
+    dict get $o -errorinfo
+} -returnCodes ok -cleanup {
+    unset -nocomplain m o
+    safe::interpDelete $i
+} -result {can't use package in a safe interpreter: no Safepkg1_SafeInit procedure
+    invoked from within
+"load {} Safepkg1 x"
+    invoked from within
+"interp eval $i {interp create x; load {} Safepkg1 x}"}
 
 test safe-11.1 {testing safe encoding} -setup {
     set i [safe::interpCreate]
@@ -501,6 +526,23 @@ test safe-11.7 {testing safe encoding} -setup {
 } -returnCodes error -cleanup {
     safe::interpDelete $i
 } -result {wrong # args: should be "encoding convertfrom ?encoding? data"}
+test safe-11.7.1 {testing safe encoding} -setup {
+    set i [safe::interpCreate]
+} -body {
+    catch {interp eval $i encoding convertfrom} m o
+    dict get $o -errorinfo
+} -returnCodes ok -cleanup {
+    unset -nocomplain m o
+    safe::interpDelete $i
+} -result {wrong # args: should be "encoding convertfrom ?encoding? data"
+    while executing
+"encoding convertfrom"
+    invoked from within
+"::interp invokehidden interp1 encoding convertfrom"
+    invoked from within
+"encoding convertfrom"
+    invoked from within
+"interp eval $i encoding convertfrom"}
 test safe-11.8 {testing safe encoding} -setup {
     set i [safe::interpCreate]
 } -body {
@@ -508,6 +550,23 @@ test safe-11.8 {testing safe encoding} -setup {
 } -returnCodes error -cleanup {
     safe::interpDelete $i
 } -result {wrong # args: should be "encoding convertto ?encoding? data"}
+test safe-11.8.1 {testing safe encoding} -setup {
+    set i [safe::interpCreate]
+} -body {
+    catch {interp eval $i encoding convertto} m o
+    dict get $o -errorinfo
+} -returnCodes ok -cleanup {
+    unset -nocomplain m o
+    safe::interpDelete $i
+} -result {wrong # args: should be "encoding convertto ?encoding? data"
+    while executing
+"encoding convertto"
+    invoked from within
+"::interp invokehidden interp1 encoding convertto"
+    invoked from within
+"encoding convertto"
+    invoked from within
+"interp eval $i encoding convertto"}
 
 test safe-12.1 {glob is restricted [Bug 2906841]} -setup {
     set i [safe::interpCreate]
@@ -715,8 +774,29 @@ test safe-15.1 {safe file ensemble does not surprise code} -setup {
     lappend result [catch {interp eval $i {file split a/b/c}} msg] $msg
     lappend result [catch {interp eval $i {file isdirectory .}} msg] $msg
 } -cleanup {
+    unset -nocomplain msg
     interp delete $i
 } -result {1 {a b c} 1 {a b c} 1 {invalid command name "file"} 1 0 {a b c} 1 {not allowed to invoke subcommand isdirectory of file}}
+test safe-15.1.1 {safe file ensemble does not surprise code} -setup {
+    set i [interp create -safe]
+} -body {
+    set result [expr {"file" in [interp hidden $i]}]
+    lappend result [interp eval $i {tcl::file::split a/b/c}]
+    lappend result [catch {interp eval $i {tcl::file::isdirectory .}}]
+    lappend result [interp invokehidden $i file split a/b/c]
+    lappend result [catch {interp eval $i {file split a/b/c}} msg] $msg
+    lappend result [catch {interp invokehidden $i file isdirectory .}]
+    interp expose $i file
+    lappend result [catch {interp eval $i {file split a/b/c}} msg] $msg
+    lappend result [catch {interp eval $i {file isdirectory .}} msg o] [dict get $o -errorinfo]
+} -cleanup {
+    unset -nocomplain msg o
+    interp delete $i
+} -result {1 {a b c} 1 {a b c} 1 {invalid command name "file"} 1 0 {a b c} 1 {not allowed to invoke subcommand isdirectory of file
+    while executing
+"file isdirectory ."
+    invoked from within
+"interp eval $i {file isdirectory .}"}}
 
 ### ~ should have no special meaning in paths in safe interpreters
 test safe-16.1 {Bug 3529949: defang ~ in paths} -setup {
diff --git a/tests/scan.test b/tests/scan.test
index 97ad5eb..b57b641 100644
--- a/tests/scan.test
+++ b/tests/scan.test
@@ -1,8 +1,8 @@
 # Commands covered:  scan
 #
-# This file contains a collection of tests for one or more of the Tcl
-# built-in commands.  Sourcing this file into Tcl runs the tests and
-# generates output for errors.  No output means no errors were found.
+# This file contains a collection of tests for one or more of the Tcl built-in
+# commands.  Sourcing this file into Tcl runs the tests and generates output
+# for errors.  No output means no errors were found.
 #
 # Copyright (c) 1991-1994 The Regents of the University of California.
 # Copyright (c) 1994-1997 Sun Microsystems, Inc.
@@ -11,14 +11,83 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
+if {"::tcltest" ni [namespace children]} {
     package require tcltest 2
     namespace import -force ::tcltest::*
 }
 
+# procedure that returns the range of integers
+
+proc int_range {} {
+    for { set MIN_INT 1 } { int($MIN_INT) > 0 } {} {
+	set MIN_INT [expr { $MIN_INT << 1 }]
+    }
+    set MIN_INT [expr {int($MIN_INT)}]
+    set MAX_INT [expr { ~ $MIN_INT }]
+    return [list $MIN_INT $MAX_INT]
+}
+
+# Big test for correct ordering of data in [expr]
+
+proc testIEEE {} {
+    variable ieeeValues
+    binary scan [binary format dd -1.0 1.0] c* c
+    switch -exact -- $c {
+	{0 0 0 0 0 0 -16 -65 0 0 0 0 0 0 -16 63} {
+	    # little endian
+	    binary scan \x00\x00\x00\x00\x00\x00\xf0\xff d \
+		ieeeValues(-Infinity)
+	    binary scan \x00\x00\x00\x00\x00\x00\xf0\xbf d \
+		ieeeValues(-Normal)
+	    binary scan \x00\x00\x00\x00\x00\x00\x08\x80 d \
+		ieeeValues(-Subnormal)
+	    binary scan \x00\x00\x00\x00\x00\x00\x00\x80 d \
+		ieeeValues(-0)
+	    binary scan \x00\x00\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(+0)
+	    binary scan \x00\x00\x00\x00\x00\x00\x08\x00 d \
+		ieeeValues(+Subnormal)
+	    binary scan \x00\x00\x00\x00\x00\x00\xf0\x3f d \
+		ieeeValues(+Normal)
+	    binary scan \x00\x00\x00\x00\x00\x00\xf0\x7f d \
+		ieeeValues(+Infinity)
+	    binary scan \x00\x00\x00\x00\x00\x00\xf8\x7f d \
+		ieeeValues(NaN)
+	    set ieeeValues(littleEndian) 1
+	    return 1
+	}
+	{-65 -16 0 0 0 0 0 0 63 -16 0 0 0 0 0 0} {
+	    binary scan \xff\xf0\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(-Infinity)
+	    binary scan \xbf\xf0\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(-Normal)
+	    binary scan \x80\x08\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(-Subnormal)
+	    binary scan \x80\x00\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(-0)
+	    binary scan \x00\x00\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(+0)
+	    binary scan \x00\x08\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(+Subnormal)
+	    binary scan \x3f\xf0\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(+Normal)
+	    binary scan \x7f\xf0\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(+Infinity)
+	    binary scan \x7f\xf8\x00\x00\x00\x00\x00\x00 d \
+		ieeeValues(NaN)
+	    set ieeeValues(littleEndian) 0
+	    return 1
+	}
+	default {
+	    return 0
+	}
+    }
+}
+
+testConstraint ieeeFloatingPoint [testIEEE]
 testConstraint wideIs64bit \
 	[expr {(wide(0x80000000) > 0) && (wide(0x8000000000000000) < 0)}]
-
+
 test scan-1.1 {BuildCharSet, CharInSet} {
     list [scan foo {%[^o]} x] $x
 } {1 f}
@@ -43,10 +112,11 @@ test scan-1.7 {BuildCharSet, CharInSet} {
 test scan-1.8 {BuildCharSet, CharInSet} {
     list [scan def-abc {%[^c-a]} x] $x
 } {1 def-}
-test scan-1.9 {BuildCharSet, CharInSet no match} {
-    catch {unset x}
+test scan-1.9 {BuildCharSet, CharInSet no match} -setup {
+    unset -nocomplain x
+} -body {
     list [scan {= f} {= %[TF]} x] [info exists x]
-} {0 0}
+} -result {0 0}
 
 test scan-2.1 {ReleaseCharSet} {
     list [scan abcde {%[abc]} x] $x
@@ -55,53 +125,53 @@ test scan-2.2 {ReleaseCharSet} {
     list [scan abcde {%[a-c]} x] $x
 } {1 abc}
 
-test scan-3.1 {ValidateFormat} {
-    list [catch {scan {} {%d%1$d} x} msg] $msg
-} {1 {cannot mix "%" and "%n$" conversion specifiers}}
-test scan-3.2 {ValidateFormat} {
-    list [catch {scan {} {%d%1$d} x} msg] $msg
-} {1 {cannot mix "%" and "%n$" conversion specifiers}}
-test scan-3.3 {ValidateFormat} {
-    list [catch {scan {} {%2$d%d} x} msg] $msg
-} {1 {"%n$" argument index out of range}}
+test scan-3.1 {ValidateFormat} -returnCodes error -body {
+    scan {} {%d%1$d} x
+} -result {cannot mix "%" and "%n$" conversion specifiers}
+test scan-3.2 {ValidateFormat} -returnCodes error -body {
+    scan {} {%d%1$d} x
+} -result {cannot mix "%" and "%n$" conversion specifiers}
+test scan-3.3 {ValidateFormat} -returnCodes error -body {
+    scan {} {%2$d%d} x
+} -result {"%n$" argument index out of range}
 test scan-3.4 {ValidateFormat} {
     # degenerate case, before changed from 8.2 to 8.3
     list [catch {scan {} %d} msg] $msg
 } {0 {}}
-test scan-3.5 {ValidateFormat} {
-    list [catch {scan {} {%10c} a} msg] $msg
-} {1 {field width may not be specified in %c conversion}}
-test scan-3.6 {ValidateFormat} {
-    list [catch {scan {} {%*1$d} a} msg] $msg
-} {1 {bad scan conversion character "$"}}
-test scan-3.7 {ValidateFormat} {
-    list [catch {scan {} {%1$d%1$d} a} msg] $msg
-} {1 {variable is assigned by multiple "%n$" conversion specifiers}}
-test scan-3.8 {ValidateFormat} {
-    list [catch {scan {} a x} msg] $msg
-} {1 {variable is not assigned by any conversion specifiers}}
-test scan-3.9 {ValidateFormat} {
-    list [catch {scan {} {%2$s} x y} msg] $msg
-} {1 {variable is not assigned by any conversion specifiers}}
-test scan-3.10 {ValidateFormat} {
-    list [catch {scan {} {%[a} x} msg] $msg
-} {1 {unmatched [ in format string}}
-test scan-3.11 {ValidateFormat} {
-    list [catch {scan {} {%[^a} x} msg] $msg
-} {1 {unmatched [ in format string}}
-test scan-3.12 {ValidateFormat} {
-    list [catch {scan {} {%[]a} x} msg] $msg
-} {1 {unmatched [ in format string}}
-test scan-3.13 {ValidateFormat} {
-    list [catch {scan {} {%[^]a} x} msg] $msg
-} {1 {unmatched [ in format string}}
+test scan-3.5 {ValidateFormat} -returnCodes error -body {
+    scan {} {%10c} a
+} -result {field width may not be specified in %c conversion}
+test scan-3.6 {ValidateFormat} -returnCodes error -body {
+    scan {} {%*1$d} a
+} -result {bad scan conversion character "$"}
+test scan-3.7 {ValidateFormat} -returnCodes error -body {
+    scan {} {%1$d%1$d} a
+} -result {variable is assigned by multiple "%n$" conversion specifiers}
+test scan-3.8 {ValidateFormat} -returnCodes error -body {
+    scan {} a x
+} -result {variable is not assigned by any conversion specifiers}
+test scan-3.9 {ValidateFormat} -returnCodes error -body {
+    scan {} {%2$s} x y
+} -result {variable is not assigned by any conversion specifiers}
+test scan-3.10 {ValidateFormat} -returnCodes error -body {
+    scan {} {%[a} x
+} -result {unmatched [ in format string}
+test scan-3.11 {ValidateFormat} -returnCodes error -body {
+    scan {} {%[^a} x
+} -result {unmatched [ in format string}
+test scan-3.12 {ValidateFormat} -returnCodes error -body {
+    scan {} {%[]a} x
+} -result {unmatched [ in format string}
+test scan-3.13 {ValidateFormat} -returnCodes error -body {
+    scan {} {%[^]a} x
+} -result {unmatched [ in format string}
 
-test scan-4.1 {Tcl_ScanObjCmd, argument checks} {
-    list [catch {scan} msg] $msg
-} {1 {wrong # args: should be "scan string format ?varName ...?"}}
-test scan-4.2 {Tcl_ScanObjCmd, argument checks} {
-    list [catch {scan string} msg] $msg
-} {1 {wrong # args: should be "scan string format ?varName ...?"}}
+test scan-4.1 {Tcl_ScanObjCmd, argument checks} -returnCodes error -body {
+    scan
+} -result {wrong # args: should be "scan string format ?varName ...?"}
+test scan-4.2 {Tcl_ScanObjCmd, argument checks} -returnCodes error -body {
+    scan string
+} -result {wrong # args: should be "scan string format ?varName ...?"}
 test scan-4.3 {Tcl_ScanObjCmd, argument checks} {
     # degenerate case, before changed from 8.2 to 8.3
     list [catch {scan string format} msg] $msg
@@ -191,99 +261,126 @@ test scan-4.29 {Tcl_ScanObjCmd, character scanning} {
     list [scan {abcdef} {%*c%n} x] $x
 } {1 1}
 
-test scan-4.30 {Tcl_ScanObjCmd, base-10 integer scanning} {
+test scan-4.30 {Tcl_ScanObjCmd, base-10 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {1234567890a} {%3d} x] $x
-} {1 123}
-test scan-4.31 {Tcl_ScanObjCmd, base-10 integer scanning} {
+} -result {1 123}
+test scan-4.31 {Tcl_ScanObjCmd, base-10 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {1234567890a} {%d} x] $x
-} {1 1234567890}
-test scan-4.32 {Tcl_ScanObjCmd, base-10 integer scanning} {
+} -result {1 1234567890}
+test scan-4.32 {Tcl_ScanObjCmd, base-10 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {01234567890a} {%d} x] $x
-} {1 1234567890}
-test scan-4.33 {Tcl_ScanObjCmd, base-10 integer scanning} {
+} -result {1 1234567890}
+test scan-4.33 {Tcl_ScanObjCmd, base-10 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {+01234} {%d} x] $x
-} {1 1234}
-test scan-4.34 {Tcl_ScanObjCmd, base-10 integer scanning} {
+} -result {1 1234}
+test scan-4.34 {Tcl_ScanObjCmd, base-10 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {-01234} {%d} x] $x
-} {1 -1234}
-test scan-4.35 {Tcl_ScanObjCmd, base-10 integer scanning} {
+} -result {1 -1234}
+test scan-4.35 {Tcl_ScanObjCmd, base-10 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {a01234} {%d} x] $x
-} {0 {}}
-test scan-4.36 {Tcl_ScanObjCmd, base-10 integer scanning} {
+} -result {0 {}}
+test scan-4.36 {Tcl_ScanObjCmd, base-10 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {0x10} {%d} x] $x
-} {1 0}
-test scan-4.37 {Tcl_ScanObjCmd, base-8 integer scanning} {
+} -result {1 0}
+test scan-4.37 {Tcl_ScanObjCmd, base-8 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {012345678} {%o} x] $x
-} {1 342391}
-test scan-4.38 {Tcl_ScanObjCmd, base-8 integer scanning} {
+} -result {1 342391}
+test scan-4.38 {Tcl_ScanObjCmd, base-8 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {+1238 -1239 123a} {%o%*s%o%*s%o} x y z] $x $y $z
-} {3 83 -83 83}
-test scan-4.39 {Tcl_ScanObjCmd, base-16 integer scanning} {
+} -result {3 83 -83 83}
+test scan-4.39 {Tcl_ScanObjCmd, base-16 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {+1238 -123a 0123} {%x%x%x} x y z] $x $y $z
-} {3 4664 -4666 291}
-test scan-4.40 {Tcl_ScanObjCmd, base-16 integer scanning} {
+} -result {3 4664 -4666 291}
+test scan-4.40 {Tcl_ScanObjCmd, base-16 integer scanning} -setup {
+    set x {}
+} -body {
     # The behavior changed in 8.4a4/8.3.4cvs (6 Feb) to correctly
     # return '1' for 0x1 scanned via %x, to comply with 8.0 and C scanf.
     # Bug #495213
-    set x {}
     list [scan {aBcDeF AbCdEf 0x1} {%x%x%x} x y z] $x $y $z
-} {3 11259375 11259375 1}
-test scan-4.40.1 {Tcl_ScanObjCmd, base-16 integer scanning} {
+} -result {3 11259375 11259375 1}
+test scan-4.40.1 {Tcl_ScanObjCmd, base-16 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {0xF 0x00A0B 0X0XF} {%x %x %x} x y z] $x $y $z
-} {3 15 2571 0}
-test scan-4.40.2 {Tcl_ScanObjCmd, base-16 integer scanning} {
-    catch {unset x}
+} -result {3 15 2571 0}
+test scan-4.40.2 {Tcl_ScanObjCmd, base-16 integer scanning} -setup {
+    unset -nocomplain x
+} -body {
     list [scan {xF} {%x} x] [info exists x]
-} {0 0}
-test scan-4.40.3 {Tcl_ScanObjCmd, base-2 integer scanning} {
+} -result {0 0}
+test scan-4.40.3 {Tcl_ScanObjCmd, base-2 integer scanning} -setup {
     set x {}
+} -body {
     list [scan {1001 0b101 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000} {%b %b %llb} x y z] $x $y $z
-} {3 9 5 340282366920938463463374607431768211456}
-test scan-4.41 {Tcl_ScanObjCmd, base-unknown integer scanning} {
+} -result {3 9 5 340282366920938463463374607431768211456}
+test scan-4.41 {Tcl_ScanObjCmd, base-unknown integer scanning} -setup {
     set x {}
+} -body {
     list [scan {10 010 0x10 0b10} {%i%i%i%i} x y z t] $x $y $z $t
-} {4 10 8 16 0}
-test scan-4.42 {Tcl_ScanObjCmd, base-unknown integer scanning} {
+} -result {4 10 8 16 0}
+test scan-4.42 {Tcl_ScanObjCmd, base-unknown integer scanning} -setup {
     set x {}
+} -body {
     list [scan {10 010 0X10} {%i%i%i} x y z] $x $y $z
-} {3 10 8 16}
-test scan-4.43 {Tcl_ScanObjCmd, integer scanning, odd cases} {
+} -result {3 10 8 16}
+test scan-4.43 {Tcl_ScanObjCmd, integer scanning, odd cases} -setup {
     set x {}
+} -body {
     list [scan {+ } {%i} x] $x
-} {0 {}}
-test scan-4.44 {Tcl_ScanObjCmd, integer scanning, odd cases} {
+} -result {0 {}}
+test scan-4.44 {Tcl_ScanObjCmd, integer scanning, odd cases} -setup {
     set x {}
+} -body {
     list [scan {+} {%i} x] $x
-} {-1 {}}
-test scan-4.45 {Tcl_ScanObjCmd, integer scanning, odd cases} {
+} -result {-1 {}}
+test scan-4.45 {Tcl_ScanObjCmd, integer scanning, odd cases} -setup {
     set x {}
+} -body {
     list [scan {0x} {%i%s} x y] $x $y
-} {2 0 x}
-test scan-4.46 {Tcl_ScanObjCmd, integer scanning, odd cases} {
+} -result {2 0 x}
+test scan-4.46 {Tcl_ScanObjCmd, integer scanning, odd cases} -setup {
     set x {}
+} -body {
     list [scan {0X} {%i%s} x y] $x $y
-} {2 0 X}
-test scan-4.47 {Tcl_ScanObjCmd, integer scanning, suppressed} {
+} -result {2 0 X}
+test scan-4.47 {Tcl_ScanObjCmd, integer scanning, suppressed} -setup {
     set x {}
+} -body {
     list [scan {123def} {%*i%s} x] $x
-} {1 def}
+} -result {1 def}
 test scan-4.48 {Tcl_ScanObjCmd, float scanning} {
     list [scan {1 2 3} {%e %f %g} x y z] $x $y $z
 } {3 1.0 2.0 3.0}
 test scan-4.49 {Tcl_ScanObjCmd, float scanning} {
     list [scan {.1 0.2 3.} {%e %f %g} x y z] $x $y $z
 } {3 0.1 0.2 3.0}
+test scan-4.49-uc-1 {Tcl_ScanObjCmd, float scanning} {
+    list [scan {0.5*0.75} {%E%c%G} x y z] $x $y $z
+} {3 0.5 42 0.75}
+test scan-4.49-uc-2 {Tcl_ScanObjCmd, float scanning} {
+    list [scan {5e-1*75E-2} {%E%c%G} x y z] $x $y $z
+} {3 0.5 42 0.75}
 test scan-4.50 {Tcl_ScanObjCmd, float scanning} {
     list [scan {1234567890a} %f x] $x
 } {1 1234567890.0}
@@ -299,133 +396,137 @@ test scan-4.53 {Tcl_ScanObjCmd, float scanning} {
 test scan-4.54 {Tcl_ScanObjCmd, float scanning} {
     list [scan {1.0e-1} %f x] $x
 } {1 0.1}
-test scan-4.55 {Tcl_ScanObjCmd, odd cases} {
+test scan-4.55 {Tcl_ScanObjCmd, odd cases} -setup {
     set x {}
+} -body {
     list [scan {+} %f x] $x
-} {-1 {}}
-test scan-4.56 {Tcl_ScanObjCmd, odd cases} {
+} -result {-1 {}}
+test scan-4.56 {Tcl_ScanObjCmd, odd cases} -setup {
     set x {}
+} -body {
     list [scan {1.0e} %f%s x y] $x $y
-} {2 1.0 e}
-test scan-4.57 {Tcl_ScanObjCmd, odd cases} {
+} -result {2 1.0 e}
+test scan-4.57 {Tcl_ScanObjCmd, odd cases} -setup {
     set x {}
+} -body {
     list [scan {1.0e+} %f%s x y] $x $y
-} {2 1.0 e+}
-test scan-4.58 {Tcl_ScanObjCmd, odd cases} {
+} -result {2 1.0 e+}
+test scan-4.58 {Tcl_ScanObjCmd, odd cases} -setup {
     set x {}
     set y {}
+} -body {
     list [scan {e1} %f%s x y] $x $y
-} {0 {} {}}
+} -result {0 {} {}}
 test scan-4.59 {Tcl_ScanObjCmd, float scanning} {
     list [scan {1.0e-1x} %*f%n x] $x
 } {1 6}
 
-test scan-4.60 {Tcl_ScanObjCmd, set errors} {
+test scan-4.60 {Tcl_ScanObjCmd, set errors} -setup {
     set x {}
     set y {}
-    catch {unset z}; array set z {}
-    set result [list [catch {scan {abc def ghi} {%s%s%s} x z y} msg] \
-	    $msg $x $y]
-    unset z
-    set result
-} {1 {can't set "z": variable is array} abc ghi}
-test scan-4.61 {Tcl_ScanObjCmd, set errors} {
+    unset -nocomplain z
+} -body {
+    array set z {}
+    list [catch {scan {abc def ghi} {%s%s%s} x z y} msg] $msg $x $y
+} -cleanup {
+    unset -nocomplain z
+} -result {1 {can't set "z": variable is array} abc ghi}
+test scan-4.61 {Tcl_ScanObjCmd, set errors} -setup {
     set x {}
-    catch {unset y}; array set y {}
-    catch {unset z}; array set z {}
-    set result [list [catch {scan {abc def ghi} {%s%s%s} x z y} msg] \
-	    $msg $x]
-    unset y
-    unset z
-    set result
-} {1 {can't set "z": variable is array} abc}
-
-# procedure that returns the range of integers
-
-proc int_range {} {
-    for { set MIN_INT 1 } { int($MIN_INT) > 0 } {} {
-	set MIN_INT [expr { $MIN_INT << 1 }]
-    }
-    set MIN_INT [expr {int($MIN_INT)}]
-    set MAX_INT [expr { ~ $MIN_INT }]
-    return [list $MIN_INT $MAX_INT]
-}
+    unset -nocomplain y
+    unset -nocomplain z
+} -body {
+    array set y {}
+    array set z {}
+    list [catch {scan {abc def ghi} {%s%s%s} x z y} msg] $msg $x
+} -cleanup {
+    unset -nocomplain y
+    unset -nocomplain z
+} -result {1 {can't set "z": variable is array} abc}
 
 test scan-4.62 {scanning of large and negative octal integers} {
-    foreach { MIN_INT MAX_INT } [int_range] {}
+    lassign [int_range] MIN_INT MAX_INT
     set scanstring [format {%o %o %o} -1 $MIN_INT $MAX_INT]
     list [scan $scanstring {%o %o %o} a b c] \
 	[expr { $a == -1 }] [expr { $b == $MIN_INT }] [expr { $c == $MAX_INT }]
 } {3 1 1 1}
 test scan-4.63 {scanning of large and negative hex integers} {
-    foreach { MIN_INT MAX_INT } [int_range] {}
+    lassign [int_range] MIN_INT MAX_INT
     set scanstring [format {%x %x %x} -1 $MIN_INT $MAX_INT]
     list [scan $scanstring {%x %x %x} a b c] \
 	[expr { $a == -1 }] [expr { $b == $MIN_INT }] [expr { $c == $MAX_INT }]
 } {3 1 1 1}
+test scan-4.64 {scanning of hex with %X} {
+    scan "123 abc f78" %X%X%X
+} {291 2748 3960}
 
-# clean up from last two tests
-
-catch {
-    rename int_range {}
-}
-
-test scan-5.1 {integer scanning} {
+test scan-5.1 {integer scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "-20 1476 \n33 0" "%d %d %d %d" a b c d] $a $b $c $d
-} {4 -20 1476 33 0}
-test scan-5.2 {integer scanning} {
+} -result {4 -20 1476 33 0}
+test scan-5.2 {integer scanning} -setup {
     set a {}; set b {}; set c {}
+} -body {
     list [scan "-45 16 7890 +10" "%2d %*d %10d %d" a b c] $a $b $c
-} {3 -4 16 7890}
-test scan-5.3 {integer scanning} {
+} -result {3 -4 16 7890}
+test scan-5.3 {integer scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "-45 16 +10 987" "%ld %d %ld %d" a b c d] $a $b $c $d
-} {4 -45 16 10 987}
-test scan-5.4 {integer scanning} {
+} -result {4 -45 16 10 987}
+test scan-5.4 {integer scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "14 1ab 62 10" "%d %x %lo %x" a b c d] $a $b $c $d
-} {4 14 427 50 16}
-test scan-5.5 {integer scanning} {
+} -result {4 14 427 50 16}
+test scan-5.5 {integer scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "12345670 1234567890ab cdefg" "%o	 %o %x %lx" a b c d] \
 	    $a $b $c $d
-} {4 2739128 342391 561323 52719}
-test scan-5.6 {integer scanning} {
+} -result {4 2739128 342391 561323 52719}
+test scan-5.6 {integer scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "ab123-24642" "%2x %3x %3o %2o" a b c d] $a $b $c $d
-} {4 171 291 -20 52}
-test scan-5.7 {integer scanning} {
+} -result {4 171 291 -20 52}
+test scan-5.7 {integer scanning} -setup {
     set a {}; set b {}
+} -body {
     list [scan "1234567 234 567  " "%*3x %x %*o %4o" a b] $a $b
-} {2 17767 375}
-test scan-5.8 {integer scanning} {
+} -result {2 17767 375}
+test scan-5.8 {integer scanning} -setup {
     set a {}; set b {}
+} -body {
     list [scan "a	1234" "%d %d" a b] $a $b
-} {0 {} {}}
-test scan-5.9 {integer scanning} {
-    set a {}; set b {}; set c {}; set d {};
+} -result {0 {} {}}
+test scan-5.9 {integer scanning} -setup {
+    set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "12345678" "%2d %2d %2ld %2d" a b c d] $a $b $c $d
-} {4 12 34 56 78}
-test scan-5.10 {integer scanning} {
+} -result {4 12 34 56 78}
+test scan-5.10 {integer scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "1 2 " "%hd %d %d %d" a b c d] $a $b $c $d
-} {2 1 2 {} {}}
+} -result {2 1 2 {} {}}
 #
-# The behavior for scaning intergers larger than MAX_INT is
-# not defined by the ANSI spec.  Some implementations wrap the
-# input (-16) some return MAX_INT.
+# The behavior for scaning intergers larger than MAX_INT is not defined by the
+# ANSI spec.  Some implementations wrap the input (-16) some return MAX_INT.
 #
-test scan-5.11 {integer scanning} {nonPortable} {
-    set a {}; set b {};
+test scan-5.11 {integer scanning} -constraints {nonPortable} -setup {
+    set a {}; set b {}
+} -body {
     list [scan "4294967280 4294967280" "%u %d" a b] $a \
 	    [expr {$b == -16 || $b == 0x7fffffff}]
-} {2 4294967280 1}
-test scan-5.12 {integer scanning} {wideIs64bit} {
+} -result {2 4294967280 1}
+test scan-5.12 {integer scanning} -constraints {wideIs64bit} -setup {
     set a {}; set b {}; set c {}
+} -body {
     list [scan "7810179016327718216,6c63546f6c6c6548,661432506755433062510" \
 	    %ld,%lx,%lo a b c] $a $b $c
-} {3 7810179016327718216 7810179016327718216 7810179016327718216}
+} -result {3 7810179016327718216 7810179016327718216 7810179016327718216}
 test scan-5.13 {integer scanning and overflow} {
     # This test used to fail on some 64-bit systems. [Bug 1011860]
     scan {300000000 3000000000 30000000000} {%ld %ld %ld}
@@ -435,153 +536,184 @@ test scan-5.14 {integer scanning} {
     scan 0xff %u
 } 0
 
-test scan-6.1 {floating-point scanning} {
+test scan-6.1 {floating-point scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "2.1 -3.0e8 .99962 a" "%f%g%e%f" a b c d] $a $b $c $d
-} {3 2.1 -300000000.0 0.99962 {}}
-test scan-6.2 {floating-point scanning} {
+} -result {3 2.1 -300000000.0 0.99962 {}}
+test scan-6.2 {floating-point scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "-1.2345 +8.2 9" "%3e %3lf %f %f" a b c d] $a $b $c $d
-} {4 -1.0 234.0 5.0 8.2}
-test scan-6.3 {floating-point scanning} {
+} -result {4 -1.0 234.0 5.0 8.2}
+test scan-6.3 {floating-point scanning} -setup {
     set a {}; set b {}; set c {}
+} -body {
     list [scan "1e00004 332E-4 3e+4" "%Lf %*2e %f %f" a b c] $a $c
-} {3 10000.0 30000.0}
+} -result {3 10000.0 30000.0}
 #
-# Some libc implementations consider 3.e- bad input.  The ANSI
-# spec states that digits must follow the - sign.
+# Some libc implementations consider 3.e- bad input.  The ANSI spec states
+# that digits must follow the - sign.
 #
-test scan-6.4 {floating-point scanning} {
+test scan-6.4 {floating-point scanning} -setup {
     set a {}; set b {}; set c {}
+} -body {
     list [scan "1. 47.6 2.e2 3.e-" "%f %*f %f %f" a b c] $a $b $c
-} {3 1.0 200.0 3.0}
-test scan-6.5 {floating-point scanning} {
+} -result {3 1.0 200.0 3.0}
+test scan-6.5 {floating-point scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "4.6 99999.7 876.43e-1 118" "%f %f %f %e" a b c d] $a $b $c $d
-} {4 4.6 99999.7 87.643 118.0}
-test scan-6.6 {floating-point scanning} {
+} -result {4 4.6 99999.7 87.643 118.0}
+test scan-6.6 {floating-point scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "1.2345 697.0e-3 124 .00005" "%f %e %f %e" a b c d] $a $b $c $d
-} {4 1.2345 0.697 124.0 5e-5}
-test scan-6.7 {floating-point scanning} {
+} -result {4 1.2345 0.697 124.0 5e-5}
+test scan-6.7 {floating-point scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "4.6abc" "%f %f %f %f" a b c d] $a $b $c $d
-} {1 4.6 {} {} {}}
-test scan-6.8 {floating-point scanning} {
+} -result {1 4.6 {} {} {}}
+test scan-6.8 {floating-point scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "4.6 5.2" "%f %f %f %f" a b c d] $a $b $c $d
-} {2 4.6 5.2 {} {}}
+} -result {2 4.6 5.2 {} {}}
 
-test scan-7.1 {string and character scanning} {
+test scan-7.1 {string and character scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "abc defghijk dum " "%s %3s %20s %s" a b c d] $a $b $c $d
-} {4 abc def ghijk dum}
-test scan-7.2 {string and character scanning} {
+} -result {4 abc def ghijk dum}
+test scan-7.2 {string and character scanning} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "a       bcdef" "%c%c%1s %s" a b c d] $a $b $c $d
-} {4 97 32 b cdef}
-test scan-7.3 {string and character scanning} {
+} -result {4 97 32 b cdef}
+test scan-7.3 {string and character scanning} -setup {
     set a {}; set b {}; set c {}
+} -body {
     list [scan "123456 test " "%*c%*s %s %s %s" a b c] $a $b $c
-} {1 test {} {}}
-test scan-7.4 {string and character scanning} {
-    set a {}; set b {}; set c {}; set d
+} -result {1 test {} {}}
+test scan-7.4 {string and character scanning} -setup {
+    set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "ababcd01234  f 123450" {%4[abcd] %4[abcd] %[^abcdef] %[^0]} a b c d] $a $b $c $d
-} {4 abab cd {01234  } {f 12345}}
-test scan-7.5 {string and character scanning} {
+} -result {4 abab cd {01234  } {f 12345}}
+test scan-7.5 {string and character scanning} -setup {
     set a {}; set b {}; set c {}
+} -body {
     list [scan "aaaaaabc aaabcdefg  + +  XYZQR" {%*4[a] %s %*4[a]%s%*4[ +]%c} a b c] $a $b $c
-} {3 aabc bcdefg 43}
-test scan-7.6 {string and character scanning, unicode} {
+} -result {3 aabc bcdefg 43}
+test scan-7.6 {string and character scanning, unicode} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "abc d\u00c7fghijk dum " "%s %3s %20s %s" a b c d] $a $b $c $d
-} "4 abc d\u00c7f ghijk dum"
-test scan-7.7 {string and character scanning, unicode} {
+} -result "4 abc d\u00c7f ghijk dum"
+test scan-7.7 {string and character scanning, unicode} -setup {
     set a {}; set b {}
+} -body {
     list [scan "ab\u00c7cdef" "ab%c%c" a b] $a $b
-} "2 199 99"
-test scan-7.8 {string and character scanning, unicode} {
+} -result "2 199 99"
+test scan-7.8 {string and character scanning, unicode} -setup {
     set a {}; set b {}
+} -body {
     list [scan "ab\ufeffdef" "%\[ab\ufeff\]" a] $a
-} "1 ab\ufeff"
+} -result "1 ab\ufeff"
 
-test scan-8.1 {error conditions} {
-    catch {scan a}
-} 1
-test scan-8.2 {error conditions} {
-    catch {scan a} msg
-    set msg
-} {wrong # args: should be "scan string format ?varName ...?"}
-test scan-8.3 {error conditions} {
-    list [catch {scan a %D x} msg] $msg
-} {1 {bad scan conversion character "D"}}
-test scan-8.4 {error conditions} {
-    list [catch {scan a %O x} msg] $msg
-} {1 {bad scan conversion character "O"}}
-test scan-8.5 {error conditions} {
-    list [catch {scan a %X x} msg] $msg
-} {1 {bad scan conversion character "X"}}
-test scan-8.6 {error conditions} {
-    list [catch {scan a %F x} msg] $msg
-} {1 {bad scan conversion character "F"}}
-test scan-8.7 {error conditions} {
-    list [catch {scan a %E x} msg] $msg
-} {1 {bad scan conversion character "E"}}
-test scan-8.8 {error conditions} {
-    list [catch {scan a "%d %d" a} msg] $msg
-} {1 {different numbers of variable names and field specifiers}}
-test scan-8.9 {error conditions} {
-    list [catch {scan a "%d %d" a b c} msg] $msg
-} {1 {variable is not assigned by any conversion specifiers}}
-test scan-8.10 {error conditions} {
+test scan-8.1 {error conditions} -body {
+    scan a
+} -returnCodes error -match glob -result *
+test scan-8.2 {error conditions} -returnCodes error -body {
+    scan a
+} -result {wrong # args: should be "scan string format ?varName ...?"}
+test scan-8.3 {error conditions} -returnCodes error -body {
+    scan a %D x
+} -result {bad scan conversion character "D"}
+test scan-8.4 {error conditions} -returnCodes error -body {
+    scan a %O x
+} -result {bad scan conversion character "O"}
+test scan-8.5 {error conditions} -returnCodes error -body {
+    scan a %B x
+} -result {bad scan conversion character "B"}
+test scan-8.6 {error conditions} -returnCodes error -body {
+    scan a %F x
+} -result {bad scan conversion character "F"}
+test scan-8.7 {error conditions} -returnCodes error -body {
+    scan a %p x
+} -result {bad scan conversion character "p"}
+test scan-8.8 {error conditions} -returnCodes error -body {
+    scan a "%d %d" a
+} -result {different numbers of variable names and field specifiers}
+test scan-8.9 {error conditions} -returnCodes error -body {
+    scan a "%d %d" a b c
+} -result {variable is not assigned by any conversion specifiers}
+test scan-8.10 {error conditions} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [expr {[scan "  a" " a %d %d %d %d" a b c d] <= 0}] $a $b $c $d
-} {1 {} {} {} {}}
-test scan-8.11 {error conditions} {
+} -result {1 {} {} {} {}}
+test scan-8.11 {error conditions} -setup {
     set a {}; set b {}; set c {}; set d {}
+} -body {
     list [scan "1 2" "%d %d %d %d" a b c d] $a $b $c $d
-} {2 1 2 {} {}}
-test scan-8.12 {error conditions} {
-    catch {unset a}
+} -result {2 1 2 {} {}}
+test scan-8.12 {error conditions} -setup {
+    unset -nocomplain a
+} -body {
     set a(0) 44
-    list [catch {scan 44 %d a} msg] $msg
-} {1 {can't set "a": variable is array}}
-test scan-8.13 {error conditions} {
-    catch {unset a}
+    scan 44 %d a
+} -returnCodes error -cleanup {
+    unset -nocomplain a
+} -result {can't set "a": variable is array}
+test scan-8.13 {error conditions} -setup {
+    unset -nocomplain a
+} -body {
     set a(0) 44
-    list [catch {scan 44 %c a} msg] $msg
-} {1 {can't set "a": variable is array}}
-test scan-8.14 {error conditions} {
-    catch {unset a}
+    scan 44 %c a
+} -returnCodes error -cleanup {
+    unset -nocomplain a
+} -result {can't set "a": variable is array}
+test scan-8.14 {error conditions} -setup {
+    unset -nocomplain a
+} -body {
     set a(0) 44
-    list [catch {scan 44 %s a} msg] $msg
-} {1 {can't set "a": variable is array}}
-test scan-8.15 {error conditions} {
-    catch {unset a}
+    scan 44 %s a
+} -returnCodes error -cleanup {
+    unset -nocomplain a
+} -result {can't set "a": variable is array}
+test scan-8.15 {error conditions} -setup {
+    unset -nocomplain a
+} -body {
     set a(0) 44
-    list [catch {scan 44 %f a} msg] $msg
-} {1 {can't set "a": variable is array}}
-test scan-8.16 {error conditions} {
-    catch {unset a}
+    scan 44 %f a
+} -returnCodes error -cleanup {
+    unset -nocomplain a
+} -result {can't set "a": variable is array}
+test scan-8.16 {error conditions} -setup {
+    unset -nocomplain a
+} -body {
     set a(0) 44
-    list [catch {scan 44 %f a} msg] $msg
-} {1 {can't set "a": variable is array}}
-catch {unset a}
-test scan-8.17 {error conditions} {
-    list [catch {scan 44 %2c a} msg] $msg
-} {1 {field width may not be specified in %c conversion}}
-test scan-8.18 {error conditions} {
-    list [catch {scan abc {%[} x} msg] $msg
-} {1 {unmatched [ in format string}}
-test scan-8.19 {error conditions} {
-    list [catch {scan abc {%[^a} x} msg] $msg
-} {1 {unmatched [ in format string}}
-test scan-8.20 {error conditions} {
-    list [catch {scan abc {%[^]a} x} msg] $msg
-} {1 {unmatched [ in format string}}
-test scan-8.21 {error conditions} {
-    list [catch {scan abc {%[]a} x} msg] $msg
-} {1 {unmatched [ in format string}}
+    scan 44 %f a
+} -returnCodes error -cleanup {
+    unset -nocomplain a
+} -result {can't set "a": variable is array}
+test scan-8.17 {error conditions} -returnCodes error -body {
+    scan 44 %2c a
+} -result {field width may not be specified in %c conversion}
+test scan-8.18 {error conditions} -returnCodes error -body {
+    scan abc {%[} x
+} -result {unmatched [ in format string}
+test scan-8.19 {error conditions} -returnCodes error -body {
+    scan abc {%[^a} x
+} -result {unmatched [ in format string}
+test scan-8.20 {error conditions} -returnCodes error -body {
+    scan abc {%[^]a} x
+} -result {unmatched [ in format string}
+test scan-8.21 {error conditions} -returnCodes error -body {
+    scan abc {%[]a} x
+} -result {unmatched [ in format string}
 
 test scan-9.1 {lots of arguments} {
     scan "10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200" "%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d" a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 a17 a18 a19 a20
@@ -591,27 +723,32 @@ test scan-9.2 {lots of arguments} {
     set a20
 } 200
 
-test scan-10.1 {miscellaneous tests} {
+test scan-10.1 {miscellaneous tests} -setup {
     set a {}
+} -body {
     list [scan ab16c ab%dc a] $a
-} {1 16}
-test scan-10.2 {miscellaneous tests} {
+} -result {1 16}
+test scan-10.2 {miscellaneous tests} -setup {
     set a {}
+} -body {
     list [scan ax16c ab%dc a] $a
-} {0 {}}
-test scan-10.3 {miscellaneous tests} {
+} -result {0 {}}
+test scan-10.3 {miscellaneous tests} -setup {
     set a {}
+} -body {
     list [catch {scan ab%c114 ab%%c%d a} msg] $msg $a
-} {0 1 114}
-test scan-10.4 {miscellaneous tests} {
+} -result {0 1 114}
+test scan-10.4 {miscellaneous tests} -setup {
     set a {}
+} -body {
     list [catch {scan ab%c14 ab%%c%d a} msg] $msg $a
-} {0 1 14}
-test scan-10.5 {miscellaneous tests} {
-    catch {unset arr}
+} -result {0 1 14}
+test scan-10.5 {miscellaneous tests} -setup {
+    unset -nocomplain arr
+} -body {
     set arr(2) {}
     list [catch {scan ab%c14 ab%%c%d arr(2)} msg] $msg $arr(2)
-} {0 1 14}
+} -result {0 1 14}
 test scan-10.6 {miscellaneous tests} {
     scan 5a {%i%[a]}
 } {5 a}
@@ -671,9 +808,9 @@ test scan-13.1 {Tcl_ScanObjCmd, inline XPG case} {
 test scan-13.2 {Tcl_ScanObjCmd, inline XPG case} {
     scan abc {%1$c%2$c%3$c%4$c}
 } {97 98 99 {}}
-test scan-13.3 {Tcl_ScanObjCmd, inline XPG case} {
-    list [catch {scan abc {%1$c%1$c}} msg] $msg
-} {1 {variable is assigned by multiple "%n$" conversion specifiers}}
+test scan-13.3 {Tcl_ScanObjCmd, inline XPG case} -returnCodes error -body {
+    scan abc {%1$c%1$c}
+} -result {variable is assigned by multiple "%n$" conversion specifiers}
 test scan-13.4 {Tcl_ScanObjCmd, inline XPG case} {
     scan abc {%2$s%1$c}
 } {{} abc}
@@ -692,77 +829,20 @@ test scan-13.8 {Tcl_ScanObjCmd, inline XPG case lots of arguments} {
     list [llength $msg] [lindex $msg 99] [lindex $msg 4] [lindex $msg 199]
 } {200 10 20 30}
 
-# Big test for correct ordering of data in [expr]
-
-proc testIEEE {} {
-    variable ieeeValues
-    binary scan [binary format dd -1.0 1.0] c* c
-    switch -exact -- $c {
-	{0 0 0 0 0 0 -16 -65 0 0 0 0 0 0 -16 63} {
-	    # little endian
-	    binary scan \x00\x00\x00\x00\x00\x00\xf0\xff d \
-		ieeeValues(-Infinity)
-	    binary scan \x00\x00\x00\x00\x00\x00\xf0\xbf d \
-		ieeeValues(-Normal)
-	    binary scan \x00\x00\x00\x00\x00\x00\x08\x80 d \
-		ieeeValues(-Subnormal)
-	    binary scan \x00\x00\x00\x00\x00\x00\x00\x80 d \
-		ieeeValues(-0)
-	    binary scan \x00\x00\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(+0)
-	    binary scan \x00\x00\x00\x00\x00\x00\x08\x00 d \
-		ieeeValues(+Subnormal)
-	    binary scan \x00\x00\x00\x00\x00\x00\xf0\x3f d \
-		ieeeValues(+Normal)
-	    binary scan \x00\x00\x00\x00\x00\x00\xf0\x7f d \
-		ieeeValues(+Infinity)
-	    binary scan \x00\x00\x00\x00\x00\x00\xf8\x7f d \
-		ieeeValues(NaN)
-	    set ieeeValues(littleEndian) 1
-	    return 1
-	}
-	{-65 -16 0 0 0 0 0 0 63 -16 0 0 0 0 0 0} {
-	    binary scan \xff\xf0\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(-Infinity)
-	    binary scan \xbf\xf0\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(-Normal)
-	    binary scan \x80\x08\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(-Subnormal)
-	    binary scan \x80\x00\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(-0)
-	    binary scan \x00\x00\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(+0)
-	    binary scan \x00\x08\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(+Subnormal)
-	    binary scan \x3f\xf0\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(+Normal)
-	    binary scan \x7f\xf0\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(+Infinity)
-	    binary scan \x7f\xf8\x00\x00\x00\x00\x00\x00 d \
-		ieeeValues(NaN)
-	    set ieeeValues(littleEndian) 0
-	    return 1
-	}
-	default {
-	    return 0
-	}
-    }
-}
-
-testConstraint ieeeFloatingPoint [testIEEE]
-
 # scan infinities - not working
 
-test scan-14.1 {infinity} {
+test scan-14.1 {positive infinity} {
     scan Inf %g d
-    set d
+    return $d
 } Inf
-test scan-14.2 {infinity} {
+test scan-14.2 {negative infinity} {
     scan -Inf %g d
-    set d
+    return $d
 } -Inf
 
 # TODO - also need to scan NaN's
+
+catch {rename int_range {}}
 
 # cleanup
 ::tcltest::cleanupTests
diff --git a/tests/set-old.test b/tests/set-old.test
index 52dc0ff..4c25ec5 100644
--- a/tests/set-old.test
+++ b/tests/set-old.test
@@ -678,6 +678,11 @@ test set-old-8.57 {array command, array get with trivial pattern} {
     set a(y) 2
     array get a x
 } {x 1}
+test set-old-8.58 {array command, array set with LVT and odd length literal} {
+    list [catch {apply {{} {
+	array set a {b c d}
+    }}} msg] $msg
+} {1 {list must have an even number of elements}}
 
 test set-old-9.1 {ids for array enumeration} {
     catch {unset a}
diff --git a/tests/set.test b/tests/set.test
index 1d88553..18119f5 100644
--- a/tests/set.test
+++ b/tests/set.test
@@ -524,6 +524,11 @@ test set-5.1 {error on malformed array name} testset2 {
     list $msg $msg1
 } {{can't read "z(a)(b)": variable isn't array} {can't read "z(b)(a)": variable isn't array}}
 
+# In a mem-debug build, this test will crash unless Bug 3602706 is fixed.
+test set-5.2 {Bug 3602706} -body {
+    testset2 ::tcl_platform not-in-there
+} -returnCodes error -result * -match glob
+
 # cleanup
 catch {unset a}
 catch {unset b}
diff --git a/tests/socket.test b/tests/socket.test
index 9f1cc78..4f90e51 100644
--- a/tests/socket.test
+++ b/tests/socket.test
@@ -64,7 +64,7 @@ package require tcltest 2
 namespace import -force ::tcltest::*
 
 # Some tests require the Thread package or exec command
-testConstraint thread [expr {0 == [catch {package require Thread 2.6.6}]}]
+testConstraint thread [expr {0 == [catch {package require Thread 2.7-}]}]
 testConstraint exec [llength [info commands exec]]
 
 # Produce a random port number in the Dynamic/Private range
@@ -86,8 +86,21 @@ puts $s2 test1; gets $s1
 puts $s2 test2; gets $s1
 close $s1; close $s2
 set t2 [clock milliseconds]
-set latency [expr {($t2-$t1)*2}]; # doubled as a safety margin
-unset t1 t2 s1 s2 server
+set lat1 [expr {($t2-$t1)*2}]; # doubled as a safety margin
+
+# Test the latency of failed connection attempts over the loopback
+# interface. They can take more than a second under Windowos and requres
+# additional [after]s in some tests that are not needed on systems that fail
+# immediately.
+set t1 [clock milliseconds]
+catch {socket 127.0.0.1 [randport]}
+set t2 [clock milliseconds]
+set lat2 [expr {($t2-$t1)*3}]
+
+# Use the maximum of the two latency calculations, but at least 100ms
+set latency [expr {$lat1 > $lat2 ? $lat1 : $lat2}]
+set latency [expr {$latency > 100 ? $latency : 1000}]
+unset t1 t2 s1 s2 lat1 lat2 server
 
 # If remoteServerIP or remoteServerPort are not set, check in the environment
 # variables for externally set values.
@@ -124,7 +137,6 @@ foreach {af localhost} {
     testConstraint supported_$af [expr {![catch {socket -server foo -myaddr $localhost 0} sock]}]
     catch {close $sock}
 }
-testConstraint supported_any [expr {[testConstraint supported_inet] || [testConstraint supported_inet6]}]
 
 set sock [socket -server foo -myaddr localhost 0]
 set sockname [fconfigure $sock -sockname]
@@ -138,6 +150,9 @@ foreach {af localhost} {
     inet 127.0.0.1
     inet6 ::1
 } {
+    if {![testConstraint supported_$af]} {
+        continue
+    }
     set ::tcl::unsupported::socketAF $af
 #
 # Check if we're supposed to do tests against the remote server
@@ -625,6 +640,86 @@ test socket_$af-2.11 {detecting new data} -constraints [list socket supported_$a
     close $s
     close $sock
 } -result {a:one b: c:two}
+test socket_$af-2.12 {} [list socket stdio supported_$af] {
+    file delete $path(script)
+    set f [open $path(script) w]
+    puts $f {
+	set server [socket -server accept_client 0]
+	puts [lindex [chan configure $server -sockname] 2]
+	proc accept_client { client host port } {
+	    chan configure $client -blocking  0 -buffering line
+	    write_line $client
+	}
+	proc write_line client {
+	    if { [catch { chan puts $client [string repeat . 720000]}] } {
+		puts [catch {chan close $client}]
+	    } else {
+		puts signal1
+		after 0 write_line $client
+	    }
+	}
+	chan event stdin readable {set forever now}
+	vwait forever
+	exit
+    }
+    close $f
+    set f [open "|[list [interpreter] $path(script)]" r+]
+    gets $f port
+    set sock [socket $localhost $port]
+    chan event $sock readable [list read_lines $sock $f]
+    proc read_lines { sock pipe } {
+	gets $pipe
+	chan close $sock
+	chan event $pipe readable [list readpipe $pipe]
+    }
+    proc readpipe {pipe} {
+	while {![string is integer [set ::done [gets $pipe]]]} {}
+    }
+    vwait ::done
+    close $f
+    set ::done
+} 0
+test socket_$af-2.13 {Bug 1758a0b603} {socket stdio} {
+    file delete $path(script)
+    set f [open $path(script) w]
+    puts $f {
+	set server [socket -server accept 0]
+	puts [lindex [chan configure $server -sockname] 2]
+	proc accept { client host port } {
+	    chan configure $client -blocking  0 -buffering line -buffersize 1
+	    puts $client [string repeat . 720000]
+	    puts ready
+	    chan event $client writable [list setup $client]
+	}
+	proc setup client {
+	    chan event $client writable {set forever write}
+	    after 5 {set forever timeout}
+	}
+	vwait forever
+	puts $forever
+    }
+    close $f
+    set pipe [open |[list [interpreter] $path(script)] r]
+    gets $pipe port
+    set sock [socket $localhost $port]
+    chan configure $sock -blocking  0 -buffering line
+    chan event $sock readable [list read_lines $sock $pipe ]
+    proc read_lines { sock pipe } {
+	gets $pipe
+	gets $sock line
+	after idle [list stop $sock $pipe]
+	chan event $sock readable {}
+    }
+    proc stop {sock pipe} {
+	variable done
+	close $sock
+	set done [gets $pipe]
+    }
+    variable done
+    vwait [namespace which -variable done]
+    close $pipe
+    set done
+} write
 
 test socket_$af-3.1 {socket conflict} -constraints [list socket supported_$af stdio] -setup {
     file delete $path(script)
@@ -1560,8 +1655,8 @@ test socket_$af-12.2 {testing inheritance of client sockets} -setup {
     close $f
     # If the socket doesn't hit end-of-file in 10 seconds, the script1 process
     # must have inherited the client.
-    set failed 0
-    set after [after 10000 [list set failed 1]]
+    set timeout 0
+    set after [after 10000 {set x "client socket was inherited"}]
 } -constraints [list socket supported_$af stdio exec] -body {
     # Create the server socket
     set server [socket -server accept -myaddr $localhost 0]
@@ -1571,26 +1666,20 @@ test socket_$af-12.2 {testing inheritance of client sockets} -setup {
 	close $server
 	fileevent $file readable [list getdata $file]
 	fconfigure $file -buffering line -blocking 0
+        set ::f $file
     }
     proc getdata { file } {
 	# Read handler on the accepted socket.
-	global x failed
+	global x
 	set status [catch {read $file} data]
 	if {$status != 0} {
-	    set x {read failed, error was $data}
-	    catch { close $file }
+	    set x "read failed, error was $data"
 	} elseif {$data ne ""} {
 	} elseif {[fblocked $file]} {
 	} elseif {[eof $file]} {
-	    if {$failed} {
-		set x {client socket was inherited}
-	    } else {
-		set x {client socket was not inherited}
-	    }
-	    catch { close $file }
+            set x "client socket was not inherited"
 	} else {
-	    set x {impossible case}
-	    catch { close $file }
+	    set x "impossible case"
 	}
     }
     # Launch the script2 process
@@ -1600,6 +1689,8 @@ test socket_$af-12.2 {testing inheritance of client sockets} -setup {
     vwait x
     return $x
 } -cleanup {
+    fconfigure $f -blocking 1
+    close $f
     after cancel $after
     close $p
 } -result {client socket was not inherited}
@@ -1641,35 +1732,30 @@ test socket_$af-12.3 {testing inheritance of accepted sockets} -setup {
     # If the socket is still open after 5 seconds, the script1 process must
     # have inherited the accepted socket.
     set failed 0
-    set after [after 5000 [list set failed 1]]
+    set after [after 5000 [list set x "accepted socket was inherited"]]
     proc getdata { file } {
 	# Read handler on the client socket.
 	global x
 	global failed
 	set status [catch {read $file} data]
 	if {$status != 0} {
-	    set x {read failed, error was $data}
-	    catch { close $file }
+	    set x "read failed, error was $data"
 	} elseif {[string compare {} $data]} {
 	} elseif {[fblocked $file]} {
 	} elseif {[eof $file]} {
-	    if {$failed} {
-		set x {accepted socket was inherited}
-	    } else {
-		set x {accepted socket was not inherited}
-	    }
-	    catch { close $file }
+            set x "accepted socket was not inherited"
 	} else {
-	    set x {impossible case}
-	    catch { close $file }
+	    set x "impossible case"
 	}
 	return
     }
     vwait x
-    return $x
+    set x
 } -cleanup {
+    fconfigure $f -blocking 1
+    close $f
     after cancel $after
-    catch {close $p}
+    close $p
 } -result {accepted socket was not inherited}
 
 test socket_$af-13.1 {Testing use of shared socket between two threads} -body {
@@ -1723,8 +1809,8 @@ catch {close $commandSocket}
 catch {close $remoteProcChan}
 }
 unset ::tcl::unsupported::socketAF
-test socket-14.0 {[socket -async] when server only listens on IPv4} \
-    -constraints [list socket supported_any localhost_v4] \
+test socket-14.0.0 {[socket -async] when server only listens on IPv4} \
+    -constraints {socket supported_inet localhost_v4} \
     -setup {
         proc accept {s a p} {
             global x
@@ -1736,7 +1822,29 @@ test socket-14.0 {[socket -async] when server only listens on IPv4} \
         set port [lindex [fconfigure $server -sockname] 2]
     } -body {
         set client [socket -async localhost $port]
-        set after [after 1000 {set x [fconfigure $client -error]}]
+        set after [after $latency {set x [fconfigure $client -error]}]
+        vwait x
+        set x
+    } -cleanup {
+        after cancel $after
+        close $server
+        close $client
+        unset x
+    } -result ok
+test socket-14.0.1 {[socket -async] when server only listens on IPv6} \
+    -constraints {socket supported_inet6 localhost_v6} \
+    -setup {
+        proc accept {s a p} {
+            global x
+            puts $s bye
+            close $s
+            set x ok
+        }
+        set server [socket -server accept -myaddr ::1 0]
+        set port [lindex [fconfigure $server -sockname] 2]
+    } -body {
+        set client [socket -async localhost $port]
+        set after [after $latency {set x [fconfigure $client -error]}]
         vwait x
         set x
     } -cleanup {
@@ -1746,7 +1854,7 @@ test socket-14.0 {[socket -async] when server only listens on IPv4} \
         unset x
     } -result ok
 test socket-14.1 {[socket -async] fileevent while still connecting} \
-    -constraints [list socket supported_any] \
+    -constraints {socket} \
     -setup {
         proc accept {s a p} {
             global x
@@ -1763,7 +1871,7 @@ test socket-14.1 {[socket -async] fileevent while still connecting} \
             lappend x [fconfigure $client -error]
 	    fileevent $client writable {}
         }
-        set after [after 1000 {lappend x timeout}]
+        set after [after $latency {lappend x timeout}]
         while {[llength $x] < 2 && "timeout" ni $x} {
             vwait x
         }
@@ -1775,26 +1883,21 @@ test socket-14.1 {[socket -async] fileevent while still connecting} \
         unset x
     } -result {{} ok}
 test socket-14.2 {[socket -async] fileevent connection refused} \
-    -constraints [list socket supported_any] \
+    -constraints {socket} \
     -body {
-        if {[catch {socket -async localhost [randport]} client]} {
-	    regexp {[^:]*: (.*)} $client -> x
-	} else {
-            fileevent $client writable {set x [fconfigure $client -error]}
-            set after [after 1000 {set x timeout}]
-            vwait x
-	    after cancel $after
-            if {$x eq "timeout"} {
-                append x ": [fconfigure $client -error]"
-            }
-	    close $client
-	}
-        set x
+        set client [socket -async localhost [randport]]
+        fileevent $client writable {set x ok}
+        set after [after $latency {set x timeout}]
+        vwait x
+        after cancel $after
+        lappend x [fconfigure $client -error]
     } -cleanup {
-        unset x
-    } -result "connection refused"
+        after cancel $after
+        close $client
+        unset x after client
+    } -result {ok {connection refused}}
 test socket-14.3 {[socket -async] when server only listens on IPv6} \
-    -constraints [list socket supported_any localhost_v6] \
+    -constraints {socket supported_inet6 localhost_v6} \
     -setup {
         proc accept {s a p} {
             global x
@@ -1806,7 +1909,7 @@ test socket-14.3 {[socket -async] when server only listens on IPv6} \
         set port [lindex [fconfigure $server -sockname] 2]
     } -body {
         set client [socket -async localhost $port]
-        set after [after 1000 {set x [fconfigure $client -error]}]
+        set after [after $latency {set x [fconfigure $client -error]}]
         vwait x
         set x
     } -cleanup {
@@ -1816,7 +1919,7 @@ test socket-14.3 {[socket -async] when server only listens on IPv6} \
         unset x
     } -result ok
 test socket-14.4 {[socket -async] and both, readdable and writable fileevents} \
-    -constraints [list socket supported_any] \
+    -constraints {socket} \
     -setup {
         proc accept {s a p} {
             puts $s bye
@@ -1832,7 +1935,7 @@ test socket-14.4 {[socket -async] and both, readdable and writable fileevents} \
             fileevent $client writable {}
         }
         fileevent $client readable {lappend x [gets $client]}
-        set after [after 1000 {lappend x timeout}]
+        set after [after $latency {lappend x timeout}]
         while {[llength $x] < 2 && "timeout" ni $x} {
             vwait x
         }
@@ -1841,15 +1944,466 @@ test socket-14.4 {[socket -async] and both, readdable and writable fileevents} \
         after cancel $after
         close $client
         close $server
+        unset x
     } -result {{} bye}
+# FIXME: we should also have an IPv6 counterpart of this
 test socket-14.5 {[socket -async] which fails before any connect() can be made} \
-    -constraints [list socket supported_any] \
+    -constraints {socket supported_inet} \
     -body {
         # address from rfc5737
         socket -async -myaddr 192.0.2.42 127.0.0.1 [randport]
     } \
     -returnCodes 1 \
     -result {couldn't open socket: cannot assign requested address}
+test socket-14.6.0 {[socket -async] with no event loop and server listening on IPv4} \
+    -constraints {socket supported_inet localhost_v4} \
+    -setup {
+        proc accept {s a p} {
+            global x
+            puts $s bye
+            close $s
+            set x ok
+        }
+        set server [socket -server accept -myaddr 127.0.0.1 0]
+        set port [lindex [fconfigure $server -sockname] 2]
+        set x ""
+    } \
+    -body {
+        set client [socket -async localhost $port]
+        for {set i 0} {$i < 50} {incr i } {
+            update
+            if {$x ne ""} {
+                lappend x [gets $client]
+                break
+            }
+            after 100
+        }
+        set x
+    } \
+    -cleanup {
+        close $server
+        close $client
+        unset x
+    } \
+    -result {ok bye}
+test socket-14.6.1 {[socket -async] with no event loop and server listening on IPv6} \
+    -constraints {socket supported_inet6 localhost_v6} \
+    -setup {
+        proc accept {s a p} {
+            global x
+            puts $s bye
+            close $s
+            set x ok
+        }
+        set server [socket -server accept -myaddr ::1 0]
+        set port [lindex [fconfigure $server -sockname] 2]
+        set x ""
+    } \
+    -body {
+        set client [socket -async localhost $port]
+        for {set i 0} {$i < 50} {incr i } {
+            update
+            if {$x ne ""} {
+                lappend x [gets $client]
+                break
+            }
+            after 100
+        }
+        set x
+    } \
+    -cleanup {
+        close $server
+        close $client
+        unset x
+    } \
+    -result {ok bye}
+test socket-14.7.0 {pending [socket -async] and blocking [gets], server is IPv4} \
+    -constraints {socket supported_inet localhost_v4} \
+    -setup {
+        makeFile {
+            fileevent stdin readable exit
+            set server [socket -server accept -myaddr 127.0.0.1 0]
+            proc accept {s h p} {puts $s ok; close $s; set ::x 1}
+            puts [lindex [fconfigure $server -sockname] 2]
+            flush stdout
+            vwait x
+        } script
+        set fd [open |[list [interpreter] script] RDWR]
+        set port [gets $fd]
+    } -body {
+        set sock [socket -async localhost $port]
+        list [fconfigure $sock -error] [gets $sock] [fconfigure $sock -error]
+    } -cleanup {
+        close $fd
+        close $sock
+	removeFile script
+    } -result {{} ok {}}
+test socket-14.7.1 {pending [socket -async] and blocking [gets], server is IPv6} \
+    -constraints {socket supported_inet6 localhost_v6} \
+    -setup {
+        makeFile {
+            fileevent stdin readable exit
+            set server [socket -server accept -myaddr ::1 0]
+            proc accept {s h p} {puts $s ok; close $s; set ::x 1}
+            puts [lindex [fconfigure $server -sockname] 2]
+            flush stdout
+            vwait x
+        } script
+        set fd [open |[list [interpreter] script] RDWR]
+        set port [gets $fd]
+    } -body {
+        set sock [socket -async localhost $port]
+        list [fconfigure $sock -error] [gets $sock] [fconfigure $sock -error]
+    } -cleanup {
+        close $fd
+        close $sock
+	removeFile script
+    } -result {{} ok {}}
+test socket-14.7.2 {pending [socket -async] and blocking [gets], no listener} \
+    -constraints {socket} \
+    -body {
+        set sock [socket -async localhost [randport]]
+        catch {gets $sock} x
+        list $x [fconfigure $sock -error] [fconfigure $sock -error]
+    } -cleanup {
+        close $sock
+    } -match glob -result {{error reading "sock*": socket is not connected} {connection refused} {}}
+test socket-14.8.0 {pending [socket -async] and nonblocking [gets], server is IPv4} \
+    -constraints {socket supported_inet localhost_v4} \
+    -setup {
+        makeFile {
+            fileevent stdin readable exit
+            set server [socket -server accept -myaddr 127.0.0.1 0]
+            proc accept {s h p} {puts $s ok; close $s; set ::x 1}
+            puts [lindex [fconfigure $server -sockname] 2]
+            flush stdout
+            vwait x
+        } script
+        set fd [open |[list [interpreter] script] RDWR]
+        set port [gets $fd]
+    } -body {
+        set sock [socket -async localhost $port]
+        fconfigure $sock -blocking 0
+        for {set i 0} {$i < 50} {incr i } {
+            if {[catch {gets $sock} x] || $x ne "" || ![fblocked $sock]} break
+            after 200
+        }
+        set x
+    } -cleanup {
+        close $fd
+        close $sock
+	removeFile script
+    } -result {ok}
+test socket-14.8.1 {pending [socket -async] and nonblocking [gets], server is IPv6} \
+    -constraints {socket supported_inet6 localhost_v6} \
+    -setup {
+        makeFile {
+            fileevent stdin readable exit
+            set server [socket -server accept -myaddr ::1 0]
+            proc accept {s h p} {puts $s ok; close $s; set ::x 1}
+            puts [lindex [fconfigure $server -sockname] 2]
+            flush stdout
+            vwait x
+        } script
+        set fd [open |[list [interpreter] script] RDWR]
+        set port [gets $fd]
+    } -body {
+        set sock [socket -async localhost $port]
+        fconfigure $sock -blocking 0
+        for {set i 0} {$i < 50} {incr i } {
+            if {[catch {gets $sock} x] || $x ne "" || ![fblocked $sock]} break
+            after 200
+        }
+        set x
+    } -cleanup {
+        close $fd
+        close $sock
+	removeFile script
+    } -result {ok}
+test socket-14.8.2 {pending [socket -async] and nonblocking [gets], no listener} \
+    -constraints {socket} \
+    -body {
+        set sock [socket -async localhost [randport]]
+        fconfigure $sock -blocking 0
+        for {set i 0} {$i < 50} {incr i } {
+            if {[catch {gets $sock} x] || $x ne "" || ![fblocked $sock]} break
+            after 200
+        }
+        list $x [fconfigure $sock -error] [fconfigure $sock -error]
+    } -cleanup {
+        close $sock
+    } -match glob -result {{error reading "sock*": socket is not connected} {connection refused} {}}
+test socket-14.9.0 {pending [socket -async] and blocking [puts], server is IPv4} \
+    -constraints {socket supported_inet localhost_v4} \
+    -setup {
+        makeFile {
+            fileevent stdin readable exit
+            set server [socket -server accept -myaddr 127.0.0.1 0]
+            proc accept {s h p} {set ::x $s}
+            puts [lindex [fconfigure $server -sockname] 2]
+            flush stdout
+            vwait x
+            puts [gets $x]
+        } script
+        set fd [open |[list [interpreter] script] RDWR]
+        set port [gets $fd]
+    } -body {
+        set sock [socket -async localhost $port]
+        puts $sock ok
+        flush $sock
+        list [fconfigure $sock -error] [gets $fd]
+    } -cleanup {
+        close $fd
+        close $sock
+	removeFile script
+    } -result {{} ok}
+test socket-14.9.1 {pending [socket -async] and blocking [puts], server is IPv6} \
+    -constraints {socket supported_inet6 localhost_v6} \
+    -setup {
+        makeFile {
+            fileevent stdin readable exit
+            set server [socket -server accept -myaddr ::1 0]
+            proc accept {s h p} {set ::x $s}
+            puts [lindex [fconfigure $server -sockname] 2]
+            flush stdout
+            vwait x
+            puts [gets $x]
+        } script
+        set fd [open |[list [interpreter] script] RDWR]
+        set port [gets $fd]
+    } -body {
+        set sock [socket -async localhost $port]
+        puts $sock ok
+        flush $sock
+        list [fconfigure $sock -error] [gets $fd]
+    } -cleanup {
+        close $fd
+        close $sock
+	removeFile script
+    } -result {{} ok}
+test socket-14.10.0 {pending [socket -async] and nonblocking [puts], server is IPv4} \
+    -constraints {socket supported_inet localhost_v4} \
+    -setup {
+        makeFile {
+            fileevent stdin readable exit
+            set server [socket -server accept -myaddr 127.0.0.1 0]
+            proc accept {s h p} {set ::x $s}
+            puts [lindex [fconfigure $server -sockname] 2]
+            flush stdout
+            vwait x
+            puts [gets $x]
+        } script
+        set fd [open |[list [interpreter] script] RDWR]
+        set port [gets $fd]
+    } -body {
+        set sock [socket -async localhost $port]
+        fconfigure $sock -blocking 0
+        puts $sock ok
+        flush $sock
+        fileevent $fd readable {set x 1}
+        vwait x
+        list [fconfigure $sock -error] [gets $fd]
+    } -cleanup {
+        close $fd
+        close $sock
+	removeFile script
+    } -result {{} ok}
+test socket-14.10.1 {pending [socket -async] and nonblocking [puts], server is IPv6} \
+    -constraints {socket supported_inet6 localhost_v6} \
+    -setup {
+        makeFile {
+            fileevent stdin readable exit
+            set server [socket -server accept -myaddr ::1 0]
+            proc accept {s h p} {set ::x $s}
+            puts [lindex [fconfigure $server -sockname] 2]
+            flush stdout
+            vwait x
+            puts [gets $x]
+        } script
+        set fd [open |[list [interpreter] script] RDWR]
+        set port [gets $fd]
+    } -body {
+        set sock [socket -async localhost $port]
+        fconfigure $sock -blocking 0
+        puts $sock ok
+        flush $sock
+        fileevent $fd readable {set x 1}
+        vwait x
+        list [fconfigure $sock -error] [gets $fd]
+    } -cleanup {
+        close $fd
+        close $sock
+	removeFile script
+    } -result {{} ok}
+test socket-14.11.0 {pending [socket -async] and nonblocking [puts], no listener, no flush} \
+    -constraints {socket} \
+    -body {
+        set sock [socket -async localhost [randport]]
+        fconfigure $sock -blocking 0
+        puts $sock ok
+        fileevent $sock writable {set x 1}
+        vwait x
+        close $sock
+    } -cleanup {
+        catch {close $sock}
+        unset x
+    } -result {socket is not connected} -returnCodes 1
+test socket-14.11.1 {pending [socket -async] and nonblocking [puts], no listener, flush} \
+    -constraints {socket nonportable} \
+    -body {
+        set sock [socket -async localhost [randport]]
+        fconfigure $sock -blocking 0
+        puts $sock ok
+        flush $sock
+        fileevent $sock writable {set x 1}
+        vwait x
+        close $sock
+    } -cleanup {
+        catch {close $sock}
+        catch {unset x}
+    } -result {socket is not connected} -returnCodes 1
+test socket-14.12 {[socket -async] background progress triggered by [fconfigure -error]} \
+    -constraints {socket} \
+    -body {
+        set s [socket -async localhost [randport]]
+        for {set i 0} {$i < 50} {incr i} {
+            set x [fconfigure $s -error]
+            if {$x != ""} break
+            after 200
+        }
+        set x
+    } -cleanup {
+        close $s
+        unset x s
+    } -result {connection refused}
+
+test socket-14.13 {testing writable event when quick failure} \
+    -constraints {socket win supported_inet} \
+    -body {
+    # Test for bug 336441ed59 where a quick background fail was ignored
+    
+    # Test only for windows as socket -async 255.255.255.255 fails
+    # directly on unix
+    
+    # The following connect should fail very quickly
+    set a1 [after 2000 {set x timeout}]
+    set s [socket -async 255.255.255.255 43434]
+    fileevent $s writable {set x writable}
+    vwait x
+    set x
+} -cleanup {
+    catch {close $s}
+    after cancel $a1
+} -result writable
+
+test socket-14.14 {testing fileevent readable on failed async socket connect} \
+    -constraints {socket} -body {
+    # Test for bug 581937ab1e
+    
+    set a1 [after 5000 {set x timeout}]
+    # This connect should fail
+    set s [socket -async localhost [randport]]
+    fileevent $s readable {set x readable}
+    vwait x
+    set x
+} -cleanup {
+    catch {close $s}
+    after cancel $a1
+} -result readable
+
+test socket-14.15 {blocking read on async socket should not trigger event handlers} \
+    -constraints socket -body {
+        set s [socket -async localhost [randport]]
+        set x ok
+        fileevent $s writable {set x fail}
+        catch {read $s}
+	close $s
+        set x
+    } -result ok
+
+# v4 and v6 is required to prevent that the async connect does not terminate
+# before the fconfigure command. There is always an additional ip to try.
+test socket-14.16 {empty -peername while [socket -async] connecting} \
+    -constraints {socket localhost_v4 localhost_v6} \
+    -body {
+        set client [socket -async localhost [randport]]
+        fconfigure $client -peername
+    } -cleanup {
+        catch {close $client}
+    } -result {}
+
+# v4 and v6 is required to prevent that the async connect does not terminate
+# before the fconfigure command. There is always an additional ip to try.
+test socket-14.17 {empty -sockname while [socket -async] connecting} \
+    -constraints {socket localhost_v4 localhost_v6} \
+    -body {
+        set client [socket -async localhost [randport]]
+        fconfigure $client -sockname
+    } -cleanup {
+        catch {close $client}
+    } -result {}
+
+# test for bug c6ed4acfd8: running async socket connect with other connect
+# established will block tcl as it goes in an infinite loop in vwait
+test socket-14.18 {bug c6ed4acfd8: running async socket connect made other connect block} \
+    -constraints {socket} \
+    -body {
+        proc accept {channel address port} {}
+        set port [randport]
+        set ssock [socket -server accept $port]
+        set csock1 [socket -async localhost [randport]]
+        set csock2 [socket localhost $port]
+        after 1000 {set done ok}
+        vwait done
+} -cleanup {
+        catch {close $ssock}
+        catch {close $csock1}
+        catch {close $csock2}
+    } -result {}
+
+set num 0
+
+set x {localhost {socket} 127.0.0.1 {supported_inet} ::1 {supported_inet6}}
+set resultok {-result "sock*" -match glob}
+set resulterr {
+    -result {couldn't open socket: connection refused}
+    -returnCodes 1
+}
+foreach {servip sc} $x {
+    foreach {cliip cc} $x {
+        set constraints socket
+        lappend constraints $sc $cc
+        set result $resulterr
+        switch -- [lsort -unique [list $servip $cliip]] {
+            localhost - 127.0.0.1 - ::1 {
+                set result $resultok
+            }
+            {127.0.0.1 localhost} {
+                if {[testConstraint localhost_v4]} {
+                    set result $resultok
+                }
+            }
+            {::1 localhost} {
+                if {[testConstraint localhost_v6]} {
+                    set result $resultok
+                }
+            }
+        }
+        test socket-15.1.$num "Connect to $servip from $cliip" \
+            -constraints $constraints -setup {
+                set server [socket -server accept -myaddr $servip 0]
+                proc accept {s h p} { close $s }
+                set port [lindex [fconfigure $server -sockname] 2]
+            } -body {
+                set s [socket $cliip $port]
+            } -cleanup {
+                close $server
+                catch {close $s}
+            } {*}$result
+        incr num
+    }
+}
+
 ::tcltest::cleanupTests
 flush stdout
 return
diff --git a/tests/source.test b/tests/source.test
index d71212d..0235bd1 100644
--- a/tests/source.test
+++ b/tests/source.test
@@ -187,6 +187,16 @@ test source-3.5 {return with special code etc.} -setup {
     invoked from within
 "source $sourcefile"} {a b c}}
 
+test source-4.1 {continuation line parsing} -setup {
+    set sourcefile [makeFile [string map {CL \\\n} {
+	format %s "[dict get [info frame 0] type]:CL[dict get [info frame 0] line]CL[dict get [info frame 0] line]CL[dict get [info frame 0] line]"
+    }] source.file]
+} -body {
+    source $sourcefile
+} -cleanup {
+    removeFile source.file
+} -result {source: 3 4 5}
+
 test source-6.1 {source is binary ok} -setup {
     # Note [makeFile] writes in the system encoding.
     # [source] defaults to reading in the system encoding.
diff --git a/tests/stack.test b/tests/stack.test
index 873cb08..13bc524 100644
--- a/tests/stack.test
+++ b/tests/stack.test
@@ -9,10 +9,8 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest 2
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2
+namespace import ::tcltest::*
 
 # Note that a failure in this test may result in a crash of the executable.
 
diff --git a/tests/string.test b/tests/string.test
index e86c0de..3611753 100644
--- a/tests/string.test
+++ b/tests/string.test
@@ -30,7 +30,7 @@ testConstraint memory [llength [info commands memory]]
 
 test string-1.1 {error conditions} {
     list [catch {string gorp a b} msg] $msg
-} {1 {unknown or ambiguous subcommand "gorp": must be bytelength, compare, equal, first, index, is, last, length, map, match, range, repeat, replace, reverse, tolower, totitle, toupper, trim, trimleft, trimright, wordend, or wordstart}}
+} {1 {unknown or ambiguous subcommand "gorp": must be bytelength, cat, compare, equal, first, index, is, last, length, map, match, range, repeat, replace, reverse, tolower, totitle, toupper, trim, trimleft, trimright, wordend, or wordstart}}
 test string-1.2 {error conditions} {
     list [catch {string} msg] $msg
 } {1 {wrong # args: should be "string subcommand ?arg ...?"}}
@@ -54,7 +54,7 @@ test string-2.6 {string compare} {
     string compare abcde abdef
 } -1
 test string-2.7 {string compare, shortest method name} {
-    string c abcde ABCDE
+    string co abcde ABCDE
 } 1
 test string-2.8 {string compare} {
     string compare abcde abcde
@@ -81,7 +81,7 @@ test string-2.13 {string compare -nocase} {
     string compare -nocase abcde abdef
 } -1
 test string-2.14 {string compare -nocase} {
-    string c -nocase abcde ABCDE
+    string compare -nocase abcde ABCDE
 } 0
 test string-2.15 {string compare -nocase} {
     string compare -nocase abcde abcde
@@ -408,13 +408,15 @@ test string-6.35 {string is double, false} {
 test string-6.36 {string is double, false} {
     list [string is double -fail var "\n"] $var
 } {0 0}
-test string-6.37 {string is double, false on int overflow} {
+test string-6.37 {string is double, false on int overflow} -setup {
+    set var priorValue
+} -body {
     # Make it the largest int recognizable, with one more digit for overflow
     # Since bignums arrived in Tcl 8.5, the sense of this test changed.
     # Now integer values that exceed native limits become bignums, and
     # bignums can convert to doubles without error.
     list [string is double -fail var [largest_int]0] $var
-} {1 0}
+} -result {1 priorValue}
 # string-6.38 removed, underflow on input is no longer an error.
 test string-6.39 {string is double, false} {
     # This test is non-portable because IRIX thinks 
@@ -1396,6 +1398,9 @@ test string-15.9 {string tolower} {
 test string-15.10 {string tolower, unicode} {
      string tolower ABCabc\xc7\xe7
 } "abcabc\xe7\xe7"
+test string-15.11 {string tolower, compiled} {
+    lindex [string tolower [list A B [list C]]] 1
+} b
 
 test string-16.1 {string toupper} {
     list [catch {string toupper} msg] $msg
@@ -1427,6 +1432,9 @@ test string-16.9 {string toupper} {
 test string-16.10 {string toupper, unicode} {
     string toupper ABCabc\xc7\xe7
 } "ABCABC\xc7\xc7"
+test string-16.11 {string toupper, compiled} {
+    lindex [string toupper [list a b [list c]]] 1
+} B
 
 test string-17.1 {string totitle} {
     list [catch {string totitle} msg] $msg
@@ -1449,6 +1457,9 @@ test string-17.6 {string totitle, unicode} {
 test string-17.7 {string totitle, unicode} {
     string totitle \u01f3BCabc\xc7\xe7
 } "\u01f2bcabc\xe7\xe7"
+test string-17.8 {string totitle, compiled} {
+    lindex [string totitle [list aa bb [list cc]]] 0
+} Aa
 
 test string-18.1 {string trim} {
     list [catch {string trim} msg] $msg
@@ -1484,8 +1495,8 @@ test string-18.11 {string trim, unicode} {
     string trim "\xe7\xe8 AB\xe7C \xe8\xe7" \xe7\xe8
 } " AB\xe7C "
 test string-18.12 {string trim, unicode default} {
-    string trim ABC\u1361\u1680\u3000
-} ABC
+    string trim \ufeff\x00\u0085\u00a0\u1680\u180eABC\u1361\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b\u2028\u2029\u202f\u205f\u3000
+} ABC\u1361
 
 test string-19.1 {string trimleft} {
     list [catch {string trimleft} msg] $msg
@@ -1494,15 +1505,15 @@ test string-19.2 {string trimleft} {
     string trimleft "    XYZ      "
 } {XYZ      }
 test string-19.3 {string trimleft, unicode default} {
-    string trimleft \u1361\u1680\u3000ABC
-} ABC
+    string trimleft \ufeff\u0085\u00a0\x00\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b\u2028\u2029\u202f\u205f\u3000\u1361ABC
+} \u1361ABC
 
 test string-20.1 {string trimright errors} {
     list [catch {string trimright} msg] $msg
 } {1 {wrong # args: should be "string trimright string ?chars?"}}
 test string-20.2 {string trimright errors} {
     list [catch {string trimg a} msg] $msg
-} {1 {unknown or ambiguous subcommand "trimg": must be bytelength, compare, equal, first, index, is, last, length, map, match, range, repeat, replace, reverse, tolower, totitle, toupper, trim, trimleft, trimright, wordend, or wordstart}}
+} {1 {unknown or ambiguous subcommand "trimg": must be bytelength, cat, compare, equal, first, index, is, last, length, map, match, range, repeat, replace, reverse, tolower, totitle, toupper, trim, trimleft, trimright, wordend, or wordstart}}
 test string-20.3 {string trimright} {
     string trimright "    XYZ      "
 } {    XYZ}
@@ -1513,8 +1524,8 @@ test string-20.5 {string trimright} {
     string trimright ""
 } {}
 test string-20.6 {string trimright, unicode default} {
-    string trimright ABC\u1361\u1680\u3000
-} ABC
+    string trimright ABC\u1361\u0085\x00\u00a0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b\u2028\u2029\u202f\u205f\u3000
+} ABC\u1361
 
 test string-21.1 {string wordend} {
     list [catch {string wordend a} msg] $msg
@@ -1561,7 +1572,7 @@ test string-21.14 {string wordend, unicode} {
 
 test string-22.1 {string wordstart} {
     list [catch {string word a} msg] $msg
-} {1 {unknown or ambiguous subcommand "word": must be bytelength, compare, equal, first, index, is, last, length, map, match, range, repeat, replace, reverse, tolower, totitle, toupper, trim, trimleft, trimright, wordend, or wordstart}}
+} {1 {unknown or ambiguous subcommand "word": must be bytelength, cat, compare, equal, first, index, is, last, length, map, match, range, repeat, replace, reverse, tolower, totitle, toupper, trim, trimleft, trimright, wordend, or wordstart}}
 test string-22.2 {string wordstart} {
     list [catch {string wordstart a} msg] $msg
 } {1 {wrong # args: should be "string wordstart string index"}}
@@ -1790,8 +1801,8 @@ test string-26.7 {tcl::prefix} -body {
     tcl::prefix match -exact {apa bepa cepa depa} be
 } -returnCodes 1 -result {bad option "be": must be apa, bepa, cepa, or depa}
 test string-26.8 {tcl::prefix} -body {
-    tcl::prefix match -message switch {apa bepa bear depa} be
-} -returnCodes 1 -result {ambiguous switch "be": must be apa, bepa, bear, or depa}
+    tcl::prefix match -message wombat {apa bepa bear depa} be
+} -returnCodes 1 -result {ambiguous wombat "be": must be apa, bepa, bear, or depa}
 test string-26.9 {tcl::prefix} -body {
     tcl::prefix match -error {} {apa bepa bear depa} be
 } -returnCodes 0 -result {}
@@ -1958,6 +1969,30 @@ test string-28.13 {tcl::prefix longest} {
     tcl::prefix longest {ax\x90 bep ax\x91} a
 } ax
 
+test string-29.1 {string cat, no arg} {
+    string cat
+} ""
+test string-29.2 {string cat, single arg} {
+    set x FOO
+    string compare $x [string cat $x]
+} 0
+test string-29.3 {string cat, two args} {
+    set x FOO
+    string compare $x$x [string cat $x $x]
+} 0
+test string-29.4 {string cat, many args} {
+    set x FOO
+    set n 260
+    set xx [string repeat $x $n]
+    set vv [string repeat {$x} $n]
+    set vvs [string repeat {$x } $n]
+    set r1 [string compare $xx [subst $vv]]
+    set r2 [string compare $xx [eval "string cat $vvs"]]
+    list $r1 $r2
+} {0 0}
+
+
+
 # cleanup
 rename MemStress {}
 catch {rename foo {}}
diff --git a/tests/stringComp.test b/tests/stringComp.test
index 56fb69d..a66525e 100644
--- a/tests/stringComp.test
+++ b/tests/stringComp.test
@@ -26,11 +26,27 @@ catch [list package require -exact Tcltest [info patchlevel]]
 # Some tests require the testobj command
 
 testConstraint testobj [expr {[info commands testobj] != {}}]
-
+testConstraint memory [llength [info commands memory]]
+if {[testConstraint memory]} {
+    proc getbytes {} {
+	set lines [split [memory info] \n]
+	return [lindex $lines 3 3]
+    }
+    proc leaktest {script {iterations 3}} {
+	set end [getbytes]
+	for {set i 0} {$i < $iterations} {incr i} {
+	    uplevel 1 $script
+	    set tmp $end
+	    set end [getbytes]
+	}
+	return [expr {$end - $tmp}]
+    }
+}
+
 test stringComp-1.1 {error conditions} {
     proc foo {} {string gorp a b}
     list [catch {foo} msg] $msg
-} {1 {unknown or ambiguous subcommand "gorp": must be bytelength, compare, equal, first, index, is, last, length, map, match, range, repeat, replace, reverse, tolower, totitle, toupper, trim, trimleft, trimright, wordend, or wordstart}}
+} {1 {unknown or ambiguous subcommand "gorp": must be bytelength, cat, compare, equal, first, index, is, last, length, map, match, range, repeat, replace, reverse, tolower, totitle, toupper, trim, trimleft, trimright, wordend, or wordstart}}
 test stringComp-1.2 {error conditions} {
     proc foo {} {string}
     list [catch {foo} msg] $msg
@@ -194,7 +210,7 @@ foreach {tname tbody tresult tcode} {
 
 # need a few extra tests short abbr cmd
 test stringComp-3.1 {string compare, shortest method name} {
-    proc foo {} {string c abcde ABCDE}
+    proc foo {} {string co abcde ABCDE}
     foo
 } 1
 test stringComp-3.2 {string equal, shortest method name} {
@@ -677,13 +693,41 @@ test stringComp-11.54 {string match, failure} {
 } {0 1 1 1 0 0}
 
 ## string range
-## not yet bc
+test stringComp-12.1 {Bug 3588366: end-offsets before start} {
+    apply {s {
+	string range $s 0 end-5
+    }} 12345
+} {}
 
 ## string repeat
 ## not yet bc
 
 ## string replace
-## not yet bc
+test stringComp-14.1 {Bug 82e7f67325} {
+    apply {x {
+	set a [join $x {}]
+	lappend b [string length [string replace ___! 0 2 $a]]
+	lappend b [string length [string replace ___! 0 2 $a[unset a]]]
+    }} {a b}
+} {3 3}
+test stringComp-14.2 {Bug 82e7f67325} memory {
+    # As in stringComp-14.1, but make sure we don't retain too many refs
+    leaktest {
+	apply {x {
+	    set a [join $x {}]
+	    lappend b [string length [string replace ___! 0 2 $a]]
+	    lappend b [string length [string replace ___! 0 2 $a[unset a]]]
+	}} {a b}
+    }
+} {0}
+test stringComp-14.3 {Bug 0dca3bfa8f} {
+    apply {arg {
+	set argCopy $arg
+	set arg [string replace $arg 1 2 aa]
+	# Crashes in comparison before fix
+	expr {$arg ne $argCopy}
+    }} abcde
+} 1
 
 ## string tolower
 ## not yet bc
@@ -700,7 +744,45 @@ test stringComp-11.54 {string match, failure} {
 ## string word*
 ## not yet bc
 
+## string cat
+test stringComp-29.1 {string cat, no arg} {
+    proc foo {} {string cat}
+    foo
+} ""
+test stringComp-29.2 {string cat, single arg} {
+    proc foo {} {
+	set x FOO
+	string compare $x [string cat $x]
+    }
+    foo
+} 0
+test stringComp-29.3 {string cat, two args} {
+    proc foo {} {
+	set x FOO
+	string compare $x$x [string cat $x $x]
+    }
+    foo
+} 0
+test stringComp-29.4 {string cat, many args} {
+    proc foo {} {
+	set x FOO
+	set n 260
+	set xx [string repeat $x $n]
+	set vv [string repeat {$x} $n]
+	set vvs [string repeat {$x } $n]
+	set r1 [string compare $xx [subst $vv]]
+	set r2 [string compare $xx [eval "string cat $vvs"]]
+	list $r1 $r2
+    }
+    foo
+} {0 0}
+
+
 # cleanup
 catch {rename foo {}}
 ::tcltest::cleanupTests
 return
+
+# Local Variables:
+# mode: tcl
+# End:
diff --git a/tests/stringObj.test b/tests/stringObj.test
index 6f331d3..8209142 100644
--- a/tests/stringObj.test
+++ b/tests/stringObj.test
@@ -21,6 +21,7 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
 catch [list package require -exact Tcltest [info patchlevel]]
 
 testConstraint testobj [llength [info commands testobj]]
+testConstraint testbytestring [llength [info commands testbytestring]]
 testConstraint testdstring [llength [info commands testdstring]]
 
 test stringObj-1.1 {string type registration} testobj {
@@ -338,7 +339,7 @@ test stringObj-10.2 {Tcl_GetRange with some mixed width chars} {testobj testdstr
     # Because this test does not use \uXXXX notation below instead of
     # hardcoding the values, it may fail in multibyte locales. However, we
     # need to test that the parser produces untyped objects even when there
-    # are high-ASCII characters in the input (like "ï"). I don't know what
+    # are high-ASCII characters in the input (like "ï"). I don't know what
     # else to do but inline those characters here.
     testdstring free
     testdstring append "abc\u00ef\u00efdef" -1
@@ -347,7 +348,7 @@ test stringObj-10.2 {Tcl_GetRange with some mixed width chars} {testobj testdstr
 	    [testobj objtype $x] [testobj objtype $y]
 } [list none "bc\u00EF\u00EFde" string string]
 test stringObj-10.3 {Tcl_GetRange with some mixed width chars} testobj {
-    # set x "abcïïdef"
+    # set x "abcïïdef"
     # Use \uXXXX notation below instead of hardcoding the values, otherwise
     # the test will fail in multibyte locales.
     set x "abc\u00EF\u00EFdef"
@@ -356,7 +357,7 @@ test stringObj-10.3 {Tcl_GetRange with some mixed width chars} testobj {
 	    [testobj objtype $x] [testobj objtype $y]
 } [list string "bc\u00EF\u00EFde" string string]
 test stringObj-10.4 {Tcl_GetRange with some mixed width chars} testobj {
-    # set a "ïa¿b®cï¿d®"
+    # set a "ïa¿b®cï¿d®"
     # Use \uXXXX notation below instead of hardcoding the values, otherwise
     # the test will fail in multibyte locales.
     set a "\u00EFa\u00BFb\u00AEc\u00EF\u00BFd\u00AE"
@@ -416,24 +417,24 @@ test stringObj-13.4 {Tcl_GetCharLength with mixed width chars} testobj {
     string length "\u00ae" 
 } 1
 test stringObj-13.5 {Tcl_GetCharLength with mixed width chars} testobj {
-    # string length "￮￮" 
+    # string length "￮￮" 
     # Use \uXXXX notation below instead of hardcoding the values, otherwise
     # the test will fail in multibyte locales.
     string length "\u00EF\u00BF\u00AE\u00EF\u00BF\u00AE"
 } 6
 test stringObj-13.6 {Tcl_GetCharLength with mixed width chars} testobj {
-    # set a "ïa¿b®cï¿d®"
+    # set a "ïa¿b®cï¿d®"
     # Use \uXXXX notation below instead of hardcoding the values, otherwise
     # the test will fail in multibyte locales.
     set a "\u00EFa\u00BFb\u00AEc\u00EF\u00BFd\u00AE"
     list [string length $a] [string length $a]
 } {10 10}
-test stringObj-13.7 {Tcl_GetCharLength with identity nulls} testobj {
+test stringObj-13.7 {Tcl_GetCharLength with identity nulls} {testobj testbytestring} {
     # SF bug #684699
-    string length [encoding convertfrom identity \x00]
+    string length [testbytestring \x00]
 } 1
-test stringObj-13.8 {Tcl_GetCharLength with identity nulls} testobj {
-    string length [encoding convertfrom identity \x01\x00\x02]
+test stringObj-13.8 {Tcl_GetCharLength with identity nulls} {testobj testbytestring} {
+    string length [testbytestring \x01\x00\x02]
 } 3
 
 test stringObj-14.1 {Tcl_SetObjLength on pure unicode object} testobj {
diff --git a/tests/subst.test b/tests/subst.test
index 4be4798..2115772 100644
--- a/tests/subst.test
+++ b/tests/subst.test
@@ -15,13 +15,17 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
     package require tcltest 2.1
     namespace import -force ::tcltest::*
 }
+::tcltest::loadTestedCommands
+catch [list package require -exact Tcltest [info patchlevel]]
+
+testConstraint testbytestring [llength [info commands testbytestring]]
 
 test subst-1.1 {basics} -returnCodes error -body {
     subst
 } -result {wrong # args: should be "subst ?-nobackslashes? ?-nocommands? ?-novariables? string"}
 test subst-1.2 {basics} -returnCodes error -body {
     subst a b c
-} -result {bad switch "a": must be -nobackslashes, -nocommands, or -novariables}
+} -result {bad option "a": must be -nobackslashes, -nocommands, or -novariables}
 
 test subst-2.1 {simple strings} {
     subst {}
@@ -32,16 +36,16 @@ test subst-2.2 {simple strings} {
 test subst-2.3 {simple strings} {
     subst abcdefg
 } abcdefg
-test subst-2.4 {simple strings} {
+test subst-2.4 {simple strings} testbytestring {
     # Tcl Bug 685106
-    subst [bytestring bar\x00soom]
-} [bytestring bar\x00soom]
+    expr {[subst [testbytestring bar\x00soom]] eq [testbytestring bar\x00soom]}
+} 1
 
 test subst-3.1 {backslash substitutions} {
     subst {\x\$x\[foo bar]\\}
 } "x\$x\[foo bar]\\"
 test subst-3.2 {backslash substitutions with utf chars} {
-    # 'j' is just a char that doesn't mean anything, and \344 is 'ä'
+    # 'j' is just a char that doesn't mean anything, and \344 is 'ä'
     # that also doesn't mean anything, but is multi-byte in UTF-8.
     list [subst \j] [subst \\j] [subst \\344] [subst \\\344]
 } "j j \344 \344"
@@ -119,13 +123,13 @@ test subst-6.1 {clear the result after command substitution} -body {
 
 test subst-7.1 {switches} -returnCodes error -body {
     subst foo bar
-} -result {bad switch "foo": must be -nobackslashes, -nocommands, or -novariables}
+} -result {bad option "foo": must be -nobackslashes, -nocommands, or -novariables}
 test subst-7.2 {switches} -returnCodes error -body {
     subst -no bar
-} -result {ambiguous switch "-no": must be -nobackslashes, -nocommands, or -novariables}
+} -result {ambiguous option "-no": must be -nobackslashes, -nocommands, or -novariables}
 test subst-7.3 {switches} -returnCodes error -body {
     subst -bogus bar
-} -result {bad switch "-bogus": must be -nobackslashes, -nocommands, or -novariables}
+} -result {bad option "-bogus": must be -nobackslashes, -nocommands, or -novariables}
 test subst-7.4 {switches} {
     set x 123
     subst -nobackslashes {abc $x [expr 1+2] \\\x41}
@@ -293,6 +297,10 @@ test subst-13.1 {Bug 3081065} -setup {
 } -cleanup {
     removeFile subst13.tcl
 }
+test subst-13.2 {Test for segfault} -body {
+    subst {[}
+} -returnCodes error -result * -match glob
+
 
 # cleanup
 ::tcltest::cleanupTests
diff --git a/tests/switch.test b/tests/switch.test
index a03948b..4d204bb 100644
--- a/tests/switch.test
+++ b/tests/switch.test
@@ -169,7 +169,7 @@ test switch-4.1 {error in executed command} {
 "switch a a {error "Just a test"} default {subst 1}"}}
 test switch-4.2 {error: not enough args} -returnCodes error -body {
     switch
-} -result {wrong # args: should be "switch ?-switch ...? string ?pattern body ...? ?default body?"}
+} -result {wrong # args: should be "switch ?-option ...? string ?pattern body ...? ?default body?"}
 test switch-4.3 {error: pattern with no body} -body {
     switch a b
 } -returnCodes error -result {extra switch pattern with no body}
@@ -269,16 +269,16 @@ test switch-8.3 {weird body text, variable} {
 
 test switch-9.1 {empty pattern/body list} -returnCodes error -body {
     switch x
-} -result {wrong # args: should be "switch ?-switch ...? string ?pattern body ...? ?default body?"}
+} -result {wrong # args: should be "switch ?-option ...? string ?pattern body ...? ?default body?"}
 test switch-9.2 {unpaired pattern} -returnCodes error -body {
     switch -- x
 } -result {extra switch pattern with no body}
 test switch-9.3 {empty pattern/body list} -body {
     switch x {}
-} -returnCodes error -result {wrong # args: should be "switch ?-switch ...? string {?pattern body ...? ?default body?}"}
+} -returnCodes error -result {wrong # args: should be "switch ?-option ...? string {?pattern body ...? ?default body?}"}
 test switch-9.4 {empty pattern/body list} -body {
     switch -- x {}
-} -returnCodes error -result {wrong # args: should be "switch ?-switch ...? string {?pattern body ...? ?default body?}"}
+} -returnCodes error -result {wrong # args: should be "switch ?-option ...? string {?pattern body ...? ?default body?}"}
 test switch-9.5 {unpaired pattern} -body {
     switch x a {} b
 } -returnCodes error -result {extra switch pattern with no body}
diff --git a/tests/tailcall.test b/tests/tailcall.test
index 2d04f82..26f3cbf 100644
--- a/tests/tailcall.test
+++ b/tests/tailcall.test
@@ -147,6 +147,36 @@ test tailcall-0.5 {tailcall is constant space} -constraints testnrelevels -setup
     rename b {}
 } -result {0 0 0 0 0 0}
 
+test tailcall-0.5.1 {tailcall is constant space} -constraints testnrelevels -setup {
+    # 
+    # This test is related to [bug d87cb182053fd79b3]: the fix to that bug was
+    # to remove a call to TclSkipTailcall, which caused a violation of the
+    # constant-space property of tailcall in that particular
+    # configuration. This test was added to detect that, and insure that the
+    # problem is fixed.
+    #
+
+    proc b i {
+	if {$i == 1} {
+	    depthDiff
+	}
+	if {[incr i] > 10} {
+	    return [depthDiff]
+	}
+	tailcall dict b $i
+    }
+    set map0 [namespace ensemble configure dict -map]
+    set map $map0
+    dict set map b b
+    namespace ensemble configure dict -map $map
+} -body {
+    dict b 0
+} -cleanup {
+    rename b {}
+    namespace ensemble configure dict -map $map0
+    unset map map0
+} -result {0 0 0 0 0 0}
+
 test tailcall-0.6 {tailcall is constant space} -constraints {testnrelevels knownBug} -setup {
     #
     # This test fails because ns-unknown is not NR-enabled
diff --git a/tests/tcltest.test b/tests/tcltest.test
index 86aca6f..e66678b 100755
--- a/tests/tcltest.test
+++ b/tests/tcltest.test
@@ -80,10 +80,7 @@ proc slave {msgVar args} {
 
     # Need to capture output in msg
 
-    set code [catch {i eval {source $argv0}} foo]
-if $code {
-#puts "$code: $foo\n$::errorInfo"
-}
+    set code [catch {i eval {source $argv0}}]
     i eval {close $tcltest::outputChannel}
     interp delete [namespace current]::i
     set f [open $of]
@@ -99,8 +96,6 @@ if $code {
 	append msg \n$err
     }
     return $code
-
-#    return [catch {uplevel 1 [linsert $args 0  exec [interpreter]]} msg]
 }
 test tcltest-2.0 {tcltest (verbose default - 'b')} {unixOrPc} {
     set result [slave msg test.tcl]
@@ -147,7 +142,7 @@ test tcltest-2.5a {tcltest -verbose 'pass skip body'} {unixOrPc} {
 } {0 1 1 1 1}
 
 test tcltest-2.6 {tcltest -verbose 't'}  {
-    -constraints {unixOrPc} 
+    -constraints {unixOrPc}
     -body {
 	set result [slave msg test.tcl -verbose 't']
 	list $result $msg
@@ -157,7 +152,7 @@ test tcltest-2.6 {tcltest -verbose 't'}  {
 }
 
 test tcltest-2.6a {tcltest -verbose 'start'}  {
-    -constraints {unixOrPc} 
+    -constraints {unixOrPc}
     -body {
 	set result [slave msg test.tcl -verbose start]
 	list $result $msg
@@ -174,7 +169,7 @@ test tcltest-2.7 {tcltest::verbose}  {
 	verbose foo
 	set newVerbosity [verbose]
 	verbose $oldVerbosity
-	list $currentVerbosity $newVerbosity 
+	list $currentVerbosity $newVerbosity
     }
     -result {body {}}
 }
@@ -222,7 +217,7 @@ test tcltest-3.5 {tcltest::match}  {
     }
     -result {foo bar}
 }
-	
+
 # -skip, [skip]
 test tcltest-4.1 {tcltest -skip 'a*'} {unixOrPc} {
     set result [slave msg test.tcl -skip a* -verbose 'ps']
@@ -304,8 +299,8 @@ test tcltest-5.3 {testConstraint - constraint empty (tcltest::safeFetch)}  {
 #    -result {{} tcltestFakeConstraint1 {tcltestFakeConstraint1 tcltestFakeConstraint2}}
 #    -cleanup {
 #	set ::tcltest::constraintsSpecified $constraintlist
-#	unset ::tcltest::testConstraints(tcltestFakeConstraint1) 
-#	unset ::tcltest::testConstraints(tcltestFakeConstraint2) 
+#	unset ::tcltest::testConstraints(tcltestFakeConstraint1)
+#	unset ::tcltest::testConstraints(tcltestFakeConstraint2)
 #    }
 #}
 
@@ -353,7 +348,7 @@ set printerror [makeFile {
     ::tcltest::PrintError "a really really long string containing a \
 	    \"Path/that/is/really/long/and/contains/no/spaces\""
     ::tcltest::PrintError "a really really long string containing a \
-	    \"Really/Long/Path/that/contains/no/spaces/and/is/longer/than/eighty/characters/to/see/what/happens\"" 
+	    \"Really/Long/Path/that/contains/no/spaces/and/is/longer/than/eighty/characters/to/see/what/happens\""
     ::tcltest::PrintError "Problem renaming file: error renaming \"Z:/ws/tcl8.2/win32-ix86/tests/core\" to \"Z:/ws/tcl8.2/win32-ix86/tests/movecore-core\""
     exit
 } printerror.tcl]
@@ -372,7 +367,7 @@ test tcltest-6.2 {tcltest -outfile a.tmp} {unixOrPc unixExecs} {
     set result1 [catch {exec grep "a test" a.tmp}]
     set result2 [catch {exec grep "a really" a.tmp}]
     list [regexp "a test" $msg] [regexp "a really" $msg] \
-	    $result1 $result2 [file exists a.tmp] [file delete a.tmp] 
+	    $result1 $result2 [file exists a.tmp] [file delete a.tmp]
 } {0 1 0 1 1 {}}
 test tcltest-6.3 {tcltest -errfile a.tmp} {unixOrPc unixExecs} {
     slave msg $printerror -errfile a.tmp
@@ -418,7 +413,7 @@ test tcltest-6.6 {tcltest::errorFile (implicit errorChannel)} {
 	set f2 [errorFile $ef]
 	set f3 [errorChannel]
 	set f4 [errorFile]
-	subst {$f0;$f1;$f2;$f3;$f4} 
+	subst {$f0;$f1;$f2;$f3;$f4}
     }
     -result {stderr;stderr;.*efile;file[0-9a-f]+;.*efile}
     -match regexp
@@ -454,7 +449,7 @@ test tcltest-6.8 {tcltest::outputFile (implicit outputFile)} {
 	set f2 [outputFile $ef]
 	set f3 [outputChannel]
 	set f4 [outputFile]
-	subst {$f0;$f1;$f2;$f3;$f4} 
+	subst {$f0;$f1;$f2;$f3;$f4}
     }
     -result {stdout;stdout;.*efile;file[0-9a-f]+;.*efile}
     -match regexp
@@ -549,13 +544,13 @@ set notWriteableDir [file join [temporaryDirectory] notwriteable]
 makeDirectory notreadable
 makeDirectory notwriteable
 switch -- $::tcl_platform(platform) {
-    "unix" {
+    unix {
 	file attributes $notReadableDir -permissions 00333
 	file attributes $notWriteableDir -permissions 00555
     }
     default {
 	catch {file attributes $notWriteableDir -readonly 1}
-	catch {testchmod 000 $notWriteableDir}
+	catch {testchmod 0 $notWriteableDir}
     }
 }
 test tcltest-8.3 {tcltest a.tcl -tmpdir notReadableDir} {
@@ -716,18 +711,18 @@ test tcltest-8.60 {::workingDirectory}  {
 
 # clean up from directory testing
 
-switch $::tcl_platform(platform) {
-    "unix" {
+switch -- $::tcl_platform(platform) {
+    unix {
 	file attributes $notReadableDir -permissions 777
 	file attributes $notWriteableDir -permissions 777
     }
     default {
-	catch {testchmod 777 $notWriteableDir}
+	catch {testchmod 0o777 $notWriteableDir}
 	catch {file attributes $notWriteableDir -readonly 0}
     }
 }
 
-file delete -force $notReadableDir $notWriteableDir
+file delete -force -- $notReadableDir $notWriteableDir
 removeFile a.tcl
 removeFile thisdirectoryisafile
 removeDirectory normaldirectory
@@ -763,7 +758,7 @@ test tcltest-9.3 {matchFiles}  {
 	set new [matchFiles]
 	matchFiles $old
 	list $current $new
-    } 
+    }
     -result {foo bar}
 }
 
@@ -776,7 +771,7 @@ test tcltest-9.4 {skipFiles} {
 	set new [skipFiles]
 	skipFiles $old
 	list $current $new
-    } 
+    }
     -result {foo bar}
 }
 
@@ -1150,8 +1145,8 @@ test tcltest-19.1 {TCLTEST_OPTIONS default} -setup {
     } -cleanup {
 	interp delete slave2
 	interp delete slave1
-	if {$oldoptions == "none"} {
-	    unset ::env(TCLTEST_OPTIONS) 
+	if {$oldoptions eq "none"} {
+	    unset ::env(TCLTEST_OPTIONS)
 	} else {
 	    set ::env(TCLTEST_OPTIONS) $oldoptions
 	}
@@ -1265,7 +1260,7 @@ test tcltest-21.6 {test command - setup occurs before cleanup & before script} {
 		}
 		set foo 1
 		set expected 2
-	    } 
+	    }
 	    -body {
 		incr foo
 		set foo
@@ -1429,7 +1424,7 @@ test tcltest-23.1 {makeFile} {
     }
     -cleanup {
 	file delete -force $mfdir \
-		[file join [temporaryDirectory] t1.tmp] 
+		[file join [temporaryDirectory] t1.tmp]
     }
     -result {1 1}
 }
@@ -1452,7 +1447,7 @@ test tcltest-23.2 {removeFile} {
     }
     -cleanup {
 	file delete -force $mfdir \
-		[file join [temporaryDirectory] t1.tmp] 
+		[file join [temporaryDirectory] t1.tmp]
     }
     -result {0 0}
 }
diff --git a/tests/thread.test b/tests/thread.test
index 43222ac..f32ef61 100644
--- a/tests/thread.test
+++ b/tests/thread.test
@@ -25,7 +25,7 @@ testConstraint testthread [expr {[info commands testthread] != {}}]
 
 # Some tests require the Thread package
 
-testConstraint thread [expr {0 == [catch {package require Thread 2.7}]}]
+testConstraint thread [expr {0 == [catch {package require Thread 2.7-}]}]
 
 # Some tests may not work under valgrind
 
@@ -84,28 +84,6 @@ if {[testConstraint testthread]} {
     }
 
     testthread errorproc ThreadError
-
-    set mainThread [testthread id]
-
-    proc ThreadNullError {id info} {
-	# ignore
-    }
-
-    proc threadReap {} {
-	testthread errorproc ThreadNullError
-	while {[llength [testthread names]] > 1} {
-	    foreach tid [testthread names] {
-		if {$tid != [testthread id]} {
-		    catch {
-			testthread send -async $tid {testthread exit}
-		    }
-		}
-	    }
-	    after 1
-	}
-	testthread errorproc ThreadError
-	return [llength [testthread names]]
-    }
 }
 
 # Some tests require manual draining of the event queue
diff --git a/tests/tm.test b/tests/tm.test
index 149a65d..1b22f8c 100644
--- a/tests/tm.test
+++ b/tests/tm.test
@@ -200,7 +200,7 @@ test tm-3.11 {tm: module path management, remove ignores unknown path} -setup {
 proc genpaths {base} {
     # Normalizing picks up drive letters on windows [Bug 1053568]
     set base [file normalize $base]
-    foreach {major minor} [split [info tclversion] .] break
+    lassign [split [package present Tcl] .] major minor 
     set results {}
     set base [file join $base tcl$major]
     lappend results [file join $base site-tcl]
diff --git a/tests/trace.test b/tests/trace.test
index 0f48dcf..d830f3c 100644
--- a/tests/trace.test
+++ b/tests/trace.test
@@ -11,10 +11,8 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest
-    namespace import -force ::tcltest::*
-}
+package require tcltest
+namespace import ::tcltest::*
 
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
@@ -32,15 +30,15 @@ proc getbytes {} {
 
 proc traceScalar {name1 name2 op} {
     global info
-    set info [list $name1 $name2 $op [catch {uplevel set $name1} msg] $msg]
+    set info [list $name1 $name2 $op [catch {uplevel 1 set $name1} msg] $msg]
 }
 proc traceScalarAppend {name1 name2 op} {
     global info
-    lappend info $name1 $name2 $op [catch {uplevel set $name1} msg] $msg
+    lappend info $name1 $name2 $op [catch {uplevel 1 set $name1} msg] $msg
 }
 proc traceArray {name1 name2 op} {
     global info
-    set info [list $name1 $name2 $op [catch {uplevel set [set name1]($name2)} msg] $msg]
+    set info [list $name1 $name2 $op [catch {uplevel 1 set [set name1]($name2)} msg] $msg]
 }
 proc traceArray2 {name1 name2 op} {
     global info
@@ -62,7 +60,7 @@ proc traceCheck {cmd args} {
     set info [list [catch $cmd msg] $msg]
 }
 proc traceCrtElement {value name1 name2 op} {
-    uplevel set ${name1}($name2) $value
+    uplevel 1 set ${name1}($name2) $value
 }
 proc traceCommand {oldName newName op} {
     global info
@@ -72,10 +70,10 @@ proc traceCommand {oldName newName op} {
 test trace-0.0 {memory corruption in trace (Tcl Bug 484339)} {
     # You may need Purify or Electric Fence to reliably
     # see this one fail.
-    catch {unset z}
+    unset -nocomplain z
     trace add variable z array {set z(foo) 1 ;#}
     set res "names: [array names z]"
-    catch {unset ::z}
+    unset -nocomplain ::z
     trace variable ::z w {unset ::z; error "memory corruption";#}
     list [catch {set ::z 1} msg] $msg
 } {1 {can't set "::z": memory corruption}}
@@ -83,40 +81,40 @@ test trace-0.0 {memory corruption in trace (Tcl Bug 484339)} {
 # Read-tracing on variables
 
 test trace-1.1 {trace variable reads} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x read traceScalar
     list [catch {set x} msg] $msg $info
 } {1 {can't read "x": no such variable} {x {} read 1 {can't read "x": no such variable}}}
 test trace-1.2 {trace variable reads} {
-    catch {unset x}
+    unset -nocomplain x
     set x 123
     set info {}
     trace add variable x read traceScalar
     list [catch {set x} msg] $msg $info
 } {0 123 {x {} read 0 123}}
 test trace-1.3 {trace variable reads} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x read traceScalar
     set x 123
     set info
 } {}
 test trace-1.4 {trace array element reads} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x(2) read traceArray
     list [catch {set x(2)} msg] $msg $info
 } {1 {can't read "x(2)": no such element in array} {x 2 read 1 {can't read "x(2)": no such element in array}}}
 test trace-1.5 {trace array element reads} {
-    catch {unset x}
+    unset -nocomplain x
     set x(2) zzz
     set info {}
     trace add variable x(2) read traceArray
     list [catch {set x(2)} msg] $msg $info
 } {0 zzz {x 2 read 0 zzz}}
 test trace-1.6 {trace array element reads} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x read traceArray2
     proc p {} {
@@ -127,7 +125,7 @@ test trace-1.6 {trace array element reads} {
     list [catch {p} msg] $msg $info
 } {0 willi {x 2 read}}
 test trace-1.7 {trace array element reads, create element undefined if nonexistant} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x read q
     proc q {name1 name2 op} {
@@ -144,20 +142,20 @@ test trace-1.7 {trace array element reads, create element undefined if nonexista
     list [catch {p} msg] $msg $info
 } {0 wolf {x Y read}}
 test trace-1.8 {trace reads on whole arrays} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x read traceArray
     list [catch {set x(2)} msg] $msg $info
 } {1 {can't read "x(2)": no such variable} {}}
 test trace-1.9 {trace reads on whole arrays} {
-    catch {unset x}
+    unset -nocomplain x
     set x(2) zzz
     set info {}
     trace add variable x read traceArray
     list [catch {set x(2)} msg] $msg $info
 } {0 zzz {x 2 read 0 zzz}}
 test trace-1.10 {trace variable reads} {
-    catch {unset x}
+    unset -nocomplain x
     set x 444
     set info {}
     trace add variable x read traceScalar
@@ -165,28 +163,28 @@ test trace-1.10 {trace variable reads} {
     set info
 } {}
 test trace-1.11 {read traces that modify the array structure} {
-    catch {unset x}
+    unset -nocomplain x
     set x(bar) 0 
     trace variable x r {set x(foo) 1 ;#} 
     trace variable x r {unset -nocomplain x(bar) ;#} 
     array get x
 } {}
 test trace-1.12 {read traces that modify the array structure} {
-    catch {unset x}
+    unset -nocomplain x
     set x(bar) 0 
     trace variable x r {unset -nocomplain x(bar) ;#} 
     trace variable x r {set x(foo) 1 ;#} 
     array get x
 } {}
 test trace-1.13 {read traces that modify the array structure} {
-    catch {unset x}
+    unset -nocomplain x
     set x(bar) 0 
     trace variable x r {set x(foo) 1 ;#} 
     trace variable x r {unset -nocomplain x;#} 
     list [catch {array get x} res] $res
 } {1 {can't read "x(bar)": no such variable}}
 test trace-1.14 {read traces that modify the array structure} {
-    catch {unset x}
+    unset -nocomplain x
     set x(bar) 0 
     trace variable x r {unset -nocomplain x;#} 
     trace variable x r {set x(foo) 1 ;#} 
@@ -196,28 +194,28 @@ test trace-1.14 {read traces that modify the array structure} {
 # Basic write-tracing on variables
 
 test trace-2.1 {trace variable writes} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write traceScalar
     set x 123
     set info
 } {x {} write 0 123}
 test trace-2.2 {trace writes to array elements} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x(33) write traceArray
     set x(33) 444
     set info
 } {x 33 write 0 444}
 test trace-2.3 {trace writes on whole arrays} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write traceArray
     set x(abc) qq
     set info
 } {x abc write 0 qq}
 test trace-2.4 {trace variable writes} {
-    catch {unset x}
+    unset -nocomplain x
     set x 1234
     set info {}
     trace add variable x write traceScalar
@@ -225,7 +223,7 @@ test trace-2.4 {trace variable writes} {
     set info
 } {}
 test trace-2.5 {trace variable writes} {
-    catch {unset x}
+    unset -nocomplain x
     set x 1234
     set info {}
     trace add variable x write traceScalar
@@ -238,7 +236,7 @@ test trace-2.6 {trace variable writes on compiled local} {
     # arrays [Bug 1770591]. The corresponding function for read traces is
     # already indirectly tested in trace-1.7
     #
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     proc p {} {
 	trace add variable x write traceArray
@@ -267,7 +265,7 @@ test trace-2.7 {trace variable writes on errorInfo} -body {
 # trace: after appending all arguments to the list.
 
 test trace-3.1 {trace variable read-modify-writes} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x read traceScalarAppend
     append x 123
@@ -276,7 +274,7 @@ test trace-3.1 {trace variable read-modify-writes} {
     set info
 } {x {} read 0 123456}
 test trace-3.2 {trace variable read-modify-writes} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x {read write} traceScalarAppend
     append x 123
@@ -287,14 +285,14 @@ test trace-3.2 {trace variable read-modify-writes} {
 # Basic unset-tracing on variables
 
 test trace-4.1 {trace variable unsets} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x unset traceScalar
-    catch {unset x}
+    unset -nocomplain x
     set info
 } {x {} unset 1 {can't read "x": no such variable}}
 test trace-4.2 {variable mustn't exist during unset trace} {
-    catch {unset x}
+    unset -nocomplain x
     set x 1234
     set info {}
     trace add variable x unset traceScalar
@@ -302,7 +300,7 @@ test trace-4.2 {variable mustn't exist during unset trace} {
     set info
 } {x {} unset 1 {can't read "x": no such variable}}
 test trace-4.3 {unset traces mustn't be called during reads and writes} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x unset traceScalar
     set x 44
@@ -310,15 +308,15 @@ test trace-4.3 {unset traces mustn't be called during reads and writes} {
     set info
 } {}
 test trace-4.4 {trace unsets on array elements} {
-    catch {unset x}
+    unset -nocomplain x
     set x(0) 18
     set info {}
     trace add variable x(1) unset traceArray
-    catch {unset x(1)}
+    unset -nocomplain x(1)
     set info
 } {x 1 unset 1 {can't read "x(1)": no such element in array}}
 test trace-4.5 {trace unsets on array elements} {
-    catch {unset x}
+    unset -nocomplain x
     set x(1) 18
     set info {}
     trace add variable x(1) unset traceArray
@@ -326,7 +324,7 @@ test trace-4.5 {trace unsets on array elements} {
     set info
 } {x 1 unset 1 {can't read "x(1)": no such element in array}}
 test trace-4.6 {trace unsets on array elements} {
-    catch {unset x}
+    unset -nocomplain x
     set x(1) 18
     set info {}
     trace add variable x(1) unset traceArray
@@ -334,15 +332,15 @@ test trace-4.6 {trace unsets on array elements} {
     set info
 } {x 1 unset 1 {can't read "x(1)": no such variable}}
 test trace-4.7 {trace unsets on whole arrays} {
-    catch {unset x}
+    unset -nocomplain x
     set x(1) 18
     set info {}
     trace add variable x unset traceProc
-    catch {unset x(0)}
+    unset -nocomplain x(0)
     set info
 } {}
 test trace-4.8 {trace unsets on whole arrays} {
-    catch {unset x}
+    unset -nocomplain x
     set x(1) 18
     set x(2) 144
     set x(3) 14
@@ -352,7 +350,7 @@ test trace-4.8 {trace unsets on whole arrays} {
     set info
 } {x 1 unset}
 test trace-4.9 {trace unsets on whole arrays} {
-    catch {unset x}
+    unset -nocomplain x
     set x(1) 18
     set x(2) 144
     set x(3) 14
@@ -364,7 +362,7 @@ test trace-4.9 {trace unsets on whole arrays} {
 
 # Array tracing on variables
 test trace-5.1 {array traces fire on accesses via [array]} {
-    catch {unset x}
+    unset -nocomplain x
     set x(b) 2
     trace add variable x array traceArray2
     set ::info {}
@@ -372,7 +370,7 @@ test trace-5.1 {array traces fire on accesses via [array]} {
     set ::info
 } {x {} array}
 test trace-5.2 {array traces do not fire on normal accesses} {
-    catch {unset x}
+    unset -nocomplain x
     set x(b) 2
     trace add variable x array traceArray2
     set ::info {}
@@ -381,7 +379,7 @@ test trace-5.2 {array traces do not fire on normal accesses} {
     set ::info
 } {}
 test trace-5.3 {array traces do not outlive variable} {
-    catch {unset x}
+    unset -nocomplain x
     trace add variable x array traceArray2
     set ::info {}
     set x(a) 1
@@ -390,19 +388,19 @@ test trace-5.3 {array traces do not outlive variable} {
     set ::info
 } {}
 test trace-5.4 {array traces properly listed in trace information} {
-    catch {unset x}
+    unset -nocomplain x
     trace add variable x array traceArray2
     set result [trace info variable x]
     set result
 } [list [list array traceArray2]]
 test trace-5.5 {array traces properly listed in trace information} {
-    catch {unset x}
+    unset -nocomplain x
     trace variable x a traceArray2
     set result [trace vinfo x]
     set result
 } [list [list a traceArray2]]
 test trace-5.6 {array traces don't fire on scalar variables} {
-    catch {unset x}
+    unset -nocomplain x
     set x foo
     trace add variable x array traceArray2
     set ::info {}
@@ -410,14 +408,14 @@ test trace-5.6 {array traces don't fire on scalar variables} {
     set ::info
 } {}
 test trace-5.7 {array traces fire for undefined variables} {
-    catch {unset x}
+    unset -nocomplain x
     trace add variable x array traceArray2
     set ::info {}
     array set x {a 1}
     set ::info
 } {x {} array}
 test trace-5.8 {array traces fire for undefined variables} {
-    catch {unset x}
+    unset -nocomplain x
     trace add variable x array {set x(foo) 1 ;#}
     set res "names: [array names x]"
 } {names: foo}
@@ -425,7 +423,7 @@ test trace-5.8 {array traces fire for undefined variables} {
 # Trace multiple trace types at once.
 
 test trace-6.1 {multiple ops traced at once} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x {read write unset} traceProc
     catch {set x}
@@ -436,7 +434,7 @@ test trace-6.1 {multiple ops traced at once} {
     set info
 } {x {} read x {} write x {} read x {} write x {} unset}
 test trace-6.2 {multiple ops traced on array element} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x(0) {read write unset} traceProc
     catch {set x(0)}
@@ -448,7 +446,7 @@ test trace-6.2 {multiple ops traced on array element} {
     set info
 } {x 0 read x 0 write x 0 read x 0 write x 0 unset}
 test trace-6.3 {multiple ops traced on whole array} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x {read write unset} traceProc
     catch {set x(0)}
@@ -463,7 +461,7 @@ test trace-6.3 {multiple ops traced on whole array} {
 # Check order of invocation of traces
 
 test trace-7.1 {order of invocation of traces} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x read "traceTag 1"
     trace add variable x read "traceTag 2"
@@ -474,7 +472,7 @@ test trace-7.1 {order of invocation of traces} {
     set info
 } {3 2 1 3 2 1}
 test trace-7.2 {order of invocation of traces} {
-    catch {unset x}
+    unset -nocomplain x
     set x(0) 44
     set info {}
     trace add variable x(0) read "traceTag 1"
@@ -484,7 +482,7 @@ test trace-7.2 {order of invocation of traces} {
     set info
 } {3 2 1}
 test trace-7.3 {order of invocation of traces} {
-    catch {unset x}
+    unset -nocomplain x
     set x(0) 44
     set info {}
     trace add variable x(0) read "traceTag 1"
@@ -500,7 +498,7 @@ test trace-7.3 {order of invocation of traces} {
 # Check effects of errors in trace procedures
 
 test trace-8.1 {error returns from traces} {
-    catch {unset x}
+    unset -nocomplain x
     set x 123
     set info {}
     trace add variable x read "traceTag 1"
@@ -508,7 +506,7 @@ test trace-8.1 {error returns from traces} {
     list [catch {set x} msg] $msg $info
 } {1 {can't read "x": trace returned error} {}}
 test trace-8.2 {error returns from traces} {
-    catch {unset x}
+    unset -nocomplain x
     set x 123
     set info {}
     trace add variable x write "traceTag 1"
@@ -516,14 +514,14 @@ test trace-8.2 {error returns from traces} {
     list [catch {set x 44} msg] $msg $info
 } {1 {can't set "x": trace returned error} {}}
 test trace-8.3 {error returns from traces} {
-    catch {unset x}
+    unset -nocomplain x
     set x 123
     set info {}
     trace add variable x write traceError
     list [catch {append x 44} msg] $msg $info
 } {1 {can't set "x": trace returned error} {}}
 test trace-8.4 {error returns from traces} {
-    catch {unset x}
+    unset -nocomplain x
     set x 123
     set info {}
     trace add variable x unset "traceTag 1"
@@ -531,7 +529,7 @@ test trace-8.4 {error returns from traces} {
     list [catch {unset x} msg] $msg $info
 } {0 {} 1}
 test trace-8.5 {error returns from traces} {
-    catch {unset x}
+    unset -nocomplain x
     set x(0) 123
     set info {}
     trace add variable x(0) read "traceTag 1"
@@ -541,7 +539,7 @@ test trace-8.5 {error returns from traces} {
     list [catch {set x(0)} msg] $msg $info
 } {1 {can't read "x(0)": trace returned error} 3}
 test trace-8.6 {error returns from traces} {
-    catch {unset x}
+    unset -nocomplain x
     set x 123
     trace add variable x unset traceError
     list [catch {unset x} msg] $msg
@@ -550,7 +548,7 @@ test trace-8.7 {error returns from traces} {
     # This test just makes sure that the memory for the error message
     # gets deallocated correctly when the trace is invoked again or
     # when the trace is deleted.
-    catch {unset x}
+    unset -nocomplain x
     set x 123
     trace add variable x read traceError
     catch {set x}
@@ -571,7 +569,7 @@ test trace-8.8 {error returns from traces} {
 	trace add    variable ::x write [list foo $::x]
 	error "foo"
     }
-    catch {unset ::x ::y}
+    unset -nocomplain ::x ::y
     set x junk
     trace add variable ::x write [list foo $x]
     for {set y 0} {$y<100} {incr y} {
@@ -585,31 +583,31 @@ test trace-8.8 {error returns from traces} {
 # a new copy of the variables.
 
 test trace-9.1 {be sure variable is unset before trace is called} {
-    catch {unset x}
+    unset -nocomplain x
     set x 33
     set info {}
-    trace add variable x unset {traceCheck {uplevel set x}}
+    trace add variable x unset {traceCheck {uplevel 1 set x}}
     unset x
     set info
 } {1 {can't read "x": no such variable}}
 test trace-9.2 {be sure variable is unset before trace is called} {
-    catch {unset x}
+    unset -nocomplain x
     set x 33
     set info {}
-    trace add variable x unset {traceCheck {uplevel set x 22}}
+    trace add variable x unset {traceCheck {uplevel 1 set x 22}}
     unset x
     concat $info [list [catch {set x} msg] $msg]
 } {0 22 0 22}
 test trace-9.3 {be sure traces are cleared before unset trace called} {
-    catch {unset x}
+    unset -nocomplain x
     set x 33
     set info {}
-    trace add variable x unset {traceCheck {uplevel trace info variable x}}
+    trace add variable x unset {traceCheck {uplevel 1 trace info variable x}}
     unset x
     set info
 } {0 {}}
 test trace-9.4 {set new trace during unset trace} {
-    catch {unset x}
+    unset -nocomplain x
     set x 33
     set info {}
     trace add variable x unset {traceCheck {global x; trace add variable x unset traceProc}}
@@ -618,23 +616,23 @@ test trace-9.4 {set new trace during unset trace} {
 } {0 {} {unset traceProc}}
 
 test trace-10.1 {make sure array elements are unset before traces are called} {
-    catch {unset x}
+    unset -nocomplain x
     set x(0) 33
     set info {}
-    trace add variable x(0) unset {traceCheck {uplevel set x(0)}}
+    trace add variable x(0) unset {traceCheck {uplevel 1 set x(0)}}
     unset x(0)
     set info
 } {1 {can't read "x(0)": no such element in array}}
 test trace-10.2 {make sure array elements are unset before traces are called} {
-    catch {unset x}
+    unset -nocomplain x
     set x(0) 33
     set info {}
-    trace add variable x(0) unset {traceCheck {uplevel set x(0) zzz}}
+    trace add variable x(0) unset {traceCheck {uplevel 1 set x(0) zzz}}
     unset x(0)
     concat $info [list [catch {set x(0)} msg] $msg]
 } {0 zzz 0 zzz}
 test trace-10.3 {array elements are unset before traces are called} {
-    catch {unset x}
+    unset -nocomplain x
     set x(0) 33
     set info {}
     trace add variable x(0) unset {traceCheck {global x; trace info variable x(0)}}
@@ -642,49 +640,49 @@ test trace-10.3 {array elements are unset before traces are called} {
     set info
 } {0 {}}
 test trace-10.4 {set new array element trace during unset trace} {
-    catch {unset x}
+    unset -nocomplain x
     set x(0) 33
     set info {}
-    trace add variable x(0) unset {traceCheck {uplevel {trace add variable x(0) read {}}}}
-    catch {unset x(0)}
+    trace add variable x(0) unset {traceCheck {uplevel 1 {trace add variable x(0) read {}}}}
+    unset -nocomplain x(0)
     concat $info [trace info variable x(0)]
 } {0 {} {read {}}}
 
 test trace-11.1 {make sure arrays are unset before traces are called} {
-    catch {unset x}
+    unset -nocomplain x
     set x(0) 33
     set info {}
-    trace add variable x unset {traceCheck {uplevel set x(0)}}
+    trace add variable x unset {traceCheck {uplevel 1 set x(0)}}
     unset x
     set info
 } {1 {can't read "x(0)": no such variable}}
 test trace-11.2 {make sure arrays are unset before traces are called} {
-    catch {unset x}
+    unset -nocomplain x
     set x(y) 33
     set info {}
-    trace add variable x unset {traceCheck {uplevel set x(y) 22}}
+    trace add variable x unset {traceCheck {uplevel 1 set x(y) 22}}
     unset x
     concat $info [list [catch {set x(y)} msg] $msg]
 } {0 22 0 22}
 test trace-11.3 {make sure arrays are unset before traces are called} {
-    catch {unset x}
+    unset -nocomplain x
     set x(y) 33
     set info {}
-    trace add variable x unset {traceCheck {uplevel array exists x}}
+    trace add variable x unset {traceCheck {uplevel 1 array exists x}}
     unset x
     set info
 } {0 0}
 test trace-11.4 {make sure arrays are unset before traces are called} {
-    catch {unset x}
+    unset -nocomplain x
     set x(y) 33
     set info {}
-    set cmd {traceCheck {uplevel {trace info variable x}}}
+    set cmd {traceCheck {uplevel 1 {trace info variable x}}}
     trace add variable x unset $cmd
     unset x
     set info
 } {0 {}}
 test trace-11.5 {set new array trace during unset trace} {
-    catch {unset x}
+    unset -nocomplain x
     set x(y) 33
     set info {}
     trace add variable x unset {traceCheck {global x; trace add variable x read {}}}
@@ -692,7 +690,7 @@ test trace-11.5 {set new array trace during unset trace} {
     concat $info [trace info variable x]
 } {0 {} {read {}}}
 test trace-11.6 {create scalar during array unset trace} {
-    catch {unset x}
+    unset -nocomplain x
     set x(y) 33
     set info {}
     trace add variable x unset {traceCheck {global x; set x 44}}
@@ -703,52 +701,52 @@ test trace-11.6 {create scalar during array unset trace} {
 # Check special conditions (e.g. errors) in Tcl_TraceVar2.
 
 test trace-12.1 {creating array when setting variable traces} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x(0) write traceProc
     list [catch {set x 22} msg] $msg
 } {1 {can't set "x": variable is array}}
 test trace-12.2 {creating array when setting variable traces} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x(0) write traceProc
     list [catch {set x(0)} msg] $msg
 } {1 {can't read "x(0)": no such element in array}}
 test trace-12.3 {creating array when setting variable traces} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x(0) write traceProc
     set x(0) 22
     set info
 } {x 0 write}
 test trace-12.4 {creating variable when setting variable traces} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write traceProc
     list [catch {set x} msg] $msg
 } {1 {can't read "x": no such variable}}
 test trace-12.5 {creating variable when setting variable traces} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write traceProc
     set x 22
     set info
 } {x {} write}
 test trace-12.6 {creating variable when setting variable traces} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write traceProc
     set x(0) 22
     set info
 } {x 0 write}
 test trace-12.7 {create array element during read trace} {
-    catch {unset x}
+    unset -nocomplain x
     set x(2) zzz
     trace add variable x read {traceCrtElement xyzzy}
     list [catch {set x(3)} msg] $msg
 } {0 xyzzy}
 test trace-12.8 {errors when setting variable traces} {
-    catch {unset x}
+    unset -nocomplain x
     set x 44
     list [catch {trace add variable x(0) write traceProc} msg] $msg
 } {1 {can't trace "x(0)": variable isn't array}}
@@ -762,7 +760,7 @@ test trace-13.1 {delete one trace from another} {
 	trace remove variable x read {traceTag 3}
 	trace remove variable x read {traceTag 4}
     }
-    catch {unset x}
+    unset -nocomplain x
     set x 44
     set info {}
     trace add variable x read {traceTag 1}
@@ -916,13 +914,13 @@ test trace-14.11 {trace command, "trace variable" errors} {
 
 
 test trace-14.12 {trace command ("remove variable" option)} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write traceProc
     trace remove variable x write traceProc
 } {}
 test trace-14.13 {trace command ("remove variable" option)} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write traceProc
     trace remove variable x write traceProc
@@ -930,7 +928,7 @@ test trace-14.13 {trace command ("remove variable" option)} {
     set info
 } {}
 test trace-14.14 {trace command ("remove variable" option)} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write {traceTag 1}
     trace add variable x write traceProc
@@ -945,7 +943,7 @@ test trace-14.14 {trace command ("remove variable" option)} {
     set info
 } {2 x {} write 1 2 1 2}
 test trace-14.15 {trace command ("remove variable" option)} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write {traceTag 1}
     trace remove variable x write non_existent
@@ -953,27 +951,27 @@ test trace-14.15 {trace command ("remove variable" option)} {
     set info
 } {1}
 test trace-14.16 {trace command ("info variable" option)} {
-    catch {unset x}
+    unset -nocomplain x
     trace add variable x write {traceTag 1}
     trace add variable x write traceProc
     trace add variable x write {traceTag 2}
     trace info variable x
 } {{write {traceTag 2}} {write traceProc} {write {traceTag 1}}}
 test trace-14.17 {trace command ("info variable" option)} {
-    catch {unset x}
+    unset -nocomplain x
     trace info variable x
 } {}
 test trace-14.18 {trace command ("info variable" option)} {
-    catch {unset x}
+    unset -nocomplain x
     trace info variable x(0)
 } {}
 test trace-14.19 {trace command ("info variable" option)} {
-    catch {unset x}
+    unset -nocomplain x
     set x 44
     trace info variable x(0)
 } {}
 test trace-14.20 {trace command ("info variable" option)} {
-    catch {unset x}
+    unset -nocomplain x
     set x 44
     trace add variable x write {traceTag 1}
     proc check {} {global x; trace info variable x}
@@ -983,7 +981,7 @@ test trace-14.20 {trace command ("info variable" option)} {
 # Check fancy trace commands (long ones, weird arguments, etc.)
 
 test trace-15.1 {long trace command} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x write {traceTag {This is a very very long argument.  It's \
 	designed to test out the facilities of TraceVarProc for dealing \
@@ -1001,14 +999,14 @@ test trace-15.2 {long trace command result to ignore} {
     proc longResult {args} {return "quite a bit of text, designed to
 	generate a core leak if this command file is invoked over and over again
 	and memory isn't being recycled correctly"}
-    catch {unset x}
+    unset -nocomplain x
     trace add variable x write longResult
     set x 44
     set x 5
     set x abcde
 } abcde
 test trace-15.3 {special list-handling in trace commands} {
-    catch {unset "x y z"}
+    unset -nocomplain "x y z"
     set "x y z(a\n\{)" 44
     set info {}
     trace add variable "x y z(a\n\{)" write traceProc
@@ -1020,18 +1018,18 @@ test trace-15.3 {special list-handling in trace commands} {
 
 proc traceUnset {unsetName args} {
     global info
-    upvar $unsetName x
+    upvar 1 $unsetName x
     lappend info [catch {unset x} msg] $msg [catch {set x} msg] $msg
 }
 proc traceReset {unsetName resetName args} {
     global info
-    upvar $unsetName x $resetName y
+    upvar 1 $unsetName x $resetName y
     lappend info [catch {unset x} msg] $msg [catch {set y xyzzy} msg] $msg
 }
 proc traceReset2 {unsetName resetName args} {
     global info
-    lappend info [catch {uplevel unset $unsetName} msg] $msg \
-	    [catch {uplevel set $resetName xyzzy} msg] $msg
+    lappend info [catch {uplevel 1 unset $unsetName} msg] $msg \
+	    [catch {uplevel 1 set $resetName xyzzy} msg] $msg
 }
 proc traceAppend {string name1 name2 op} {
     global info
@@ -1039,7 +1037,7 @@ proc traceAppend {string name1 name2 op} {
 }
 
 test trace-16.1 {unsets during read traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y 1234
     set info {}
     trace add variable y read {traceUnset y}
@@ -1047,49 +1045,49 @@ test trace-16.1 {unsets during read traces} {
     lappend info [catch {set y} msg] $msg
 } {unset 0 {} 1 {can't read "x": no such variable} 1 {can't read "y": no such variable}}
 test trace-16.2 {unsets during read traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) read {traceUnset y(0)}
     lappend info [catch {set y(0)} msg] $msg
 } {0 {} 1 {can't read "x": no such variable} 1 {can't read "y(0)": no such element in array}}
 test trace-16.3 {unsets during read traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) read {traceUnset y}
     lappend info [catch {set y(0)} msg] $msg
 } {0 {} 1 {can't read "x": no such variable} 1 {can't read "y(0)": no such variable}}
 test trace-16.4 {unsets during read traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y 1234
     set info {}
     trace add variable y read {traceReset y y}
     lappend info [catch {set y} msg] $msg
 } {0 {} 0 xyzzy 0 xyzzy}
 test trace-16.5 {unsets during read traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) read {traceReset y(0) y(0)}
     lappend info [catch {set y(0)} msg] $msg
 } {0 {} 0 xyzzy 0 xyzzy}
 test trace-16.6 {unsets during read traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) read {traceReset y y(0)}
     lappend info [catch {set y(0)} msg] $msg [catch {set y(0)} msg] $msg
 } {0 {} 1 {can't set "y": upvar refers to element in deleted array} 1 {can't read "y(0)": no such variable} 1 {can't read "y(0)": no such variable}}
 test trace-16.7 {unsets during read traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) read {traceReset2 y y(0)}
     lappend info [catch {set y(0)} msg] $msg [catch {set y(0)} msg] $msg
 } {0 {} 0 xyzzy 1 {can't read "y(0)": no such element in array} 0 xyzzy}
 test trace-16.8 {unsets during write traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y 1234
     set info {}
     trace add variable y write {traceUnset y}
@@ -1097,91 +1095,91 @@ test trace-16.8 {unsets during write traces} {
     lappend info [catch {set y xxx} msg] $msg
 } {unset 0 {} 1 {can't read "x": no such variable} 0 {}}
 test trace-16.9 {unsets during write traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) write {traceUnset y(0)}
     lappend info [catch {set y(0) xxx} msg] $msg
 } {0 {} 1 {can't read "x": no such variable} 0 {}}
 test trace-16.10 {unsets during write traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) write {traceUnset y}
     lappend info [catch {set y(0) xxx} msg] $msg
 } {0 {} 1 {can't read "x": no such variable} 0 {}}
 test trace-16.11 {unsets during write traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y 1234
     set info {}
     trace add variable y write {traceReset y y}
     lappend info [catch {set y xxx} msg] $msg
 } {0 {} 0 xyzzy 0 xyzzy}
 test trace-16.12 {unsets during write traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) write {traceReset y(0) y(0)}
     lappend info [catch {set y(0) xxx} msg] $msg
 } {0 {} 0 xyzzy 0 xyzzy}
 test trace-16.13 {unsets during write traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) write {traceReset y y(0)}
     lappend info [catch {set y(0) xxx} msg] $msg [catch {set y(0)} msg] $msg
 } {0 {} 1 {can't set "y": upvar refers to element in deleted array} 0 {} 1 {can't read "y(0)": no such variable}}
 test trace-16.14 {unsets during write traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) write {traceReset2 y y(0)}
     lappend info [catch {set y(0) xxx} msg] $msg [catch {set y(0)} msg] $msg
 } {0 {} 0 xyzzy 0 {} 0 xyzzy}
 test trace-16.15 {unsets during unset traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y 1234
     set info {}
     trace add variable y unset {traceUnset y}
     lappend info [catch {unset y} msg] $msg [catch {set y} msg] $msg
 } {1 {can't unset "x": no such variable} 1 {can't read "x": no such variable} 0 {} 1 {can't read "y": no such variable}}
 test trace-16.16 {unsets during unset traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) unset {traceUnset y(0)}
     lappend info [catch {unset y(0)} msg] $msg [catch {set y(0)} msg] $msg
 } {1 {can't unset "x": no such variable} 1 {can't read "x": no such variable} 0 {} 1 {can't read "y(0)": no such element in array}}
 test trace-16.17 {unsets during unset traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) unset {traceUnset y}
     lappend info [catch {unset y(0)} msg] $msg [catch {set y(0)} msg] $msg
 } {0 {} 1 {can't read "x": no such variable} 0 {} 1 {can't read "y(0)": no such variable}}
 test trace-16.18 {unsets during unset traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y 1234
     set info {}
     trace add variable y unset {traceReset2 y y}
     lappend info [catch {unset y} msg] $msg [catch {set y} msg] $msg
 } {1 {can't unset "y": no such variable} 0 xyzzy 0 {} 0 xyzzy}
 test trace-16.19 {unsets during unset traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) unset {traceReset2 y(0) y(0)}
     lappend info [catch {unset y(0)} msg] $msg [catch {set y(0)} msg] $msg
 } {1 {can't unset "y(0)": no such element in array} 0 xyzzy 0 {} 0 xyzzy}
 test trace-16.20 {unsets during unset traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) unset {traceReset2 y y(0)}
     lappend info [catch {unset y(0)} msg] $msg [catch {set y(0)} msg] $msg
 } {0 {} 0 xyzzy 0 {} 0 xyzzy}
 test trace-16.21 {unsets cancelling traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y 1234
     set info {}
     trace add variable y read {traceAppend first}
@@ -1191,7 +1189,7 @@ test trace-16.21 {unsets cancelling traces} {
     lappend info [catch {set y} msg] $msg
 } {third unset 0 {} 1 {can't read "x": no such variable} 1 {can't read "y": no such variable}}
 test trace-16.22 {unsets cancelling traces} {
-    catch {unset y}
+    unset -nocomplain y
     set y(0) 1234
     set info {}
     trace add variable y(0) read {traceAppend first}
@@ -1204,19 +1202,19 @@ test trace-16.22 {unsets cancelling traces} {
 # Check various non-interference between traces and other things.
 
 test trace-17.1 {trace doesn't prevent unset errors} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     trace add variable x unset {traceProc}
     list [catch {unset x} msg] $msg $info
 } {1 {can't unset "x": no such variable} {x {} unset}}
 test trace-17.2 {traced variables must survive procedure exits} {
-    catch {unset x}
+    unset -nocomplain x
     proc p1 {} {global x; trace add variable x write traceProc}
     p1
     trace info variable x
 } {{write traceProc}}
 test trace-17.3 {traced variables must survive procedure exits} {
-    catch {unset x}
+    unset -nocomplain x
     set info {}
     proc p1 {} {global x; trace add variable x write traceProc}
     p1
@@ -1229,7 +1227,7 @@ test trace-17.3 {traced variables must survive procedure exits} {
 
 test trace-18.1 {unset traces on procedure returns} {
     proc p1 {x y} {set a 44; p2 14}
-    proc p2 {z} {trace add variable z unset {traceCheck {lsort [uplevel {info vars}]}}}
+    proc p2 {z} {trace add variable z unset {traceCheck {lsort [uplevel 1 {info vars}]}}}
     set info {}
     p1 foo bar
     set info
@@ -1269,8 +1267,7 @@ test trace-18.4 {namespace delete / trace vdelete combo, Bug \#1338280} {
 # Delete arrays when done, so they can be re-used as scalars
 # elsewhere.
 
-catch {unset x}
-catch {unset y}
+unset -nocomplain x y
 
 test trace-19.0.1 {trace add command (command existence)} {
     # Just in case!
@@ -1312,6 +1309,7 @@ test trace-19.3 {command rename traces don't fire on command deletion} {
 test trace-19.4 {trace add command rename doesn't trace recreated commands} {
     proc foo {} {}
     catch {rename bar {}}
+    set info {}
     trace add command foo rename traceCommand
     proc foo {} {}
     rename foo bar
@@ -1324,25 +1322,49 @@ test trace-19.5 {trace add command deleted removes traces} {
     trace info command foo
 } {}
 
-namespace eval tc {}
-proc tc::tcfoo {} {}
-test trace-19.6 {trace add command rename in namespace} {
+test trace-19.6 {trace add command rename in namespace} -setup {
+    namespace eval tc {}
+    proc tc::tcfoo {} {}
+} -body {
     trace add command tc::tcfoo rename traceCommand
     rename tc::tcfoo tc::tcbar
     set info
-} {::tc::tcfoo ::tc::tcbar rename}
-test trace-19.7 {trace add command rename in namespace back again} {
+} -cleanup {
+    namespace delete tc
+} -result {::tc::tcfoo ::tc::tcbar rename}
+test trace-19.7 {trace add command rename in namespace back again} -setup {
+    namespace eval tc {}
+    proc tc::tcfoo {} {}
+} -body {
+    trace add command tc::tcfoo rename traceCommand
+    rename tc::tcfoo tc::tcbar
     rename tc::tcbar tc::tcfoo
     set info
-} {::tc::tcbar ::tc::tcfoo rename}
-test trace-19.8 {trace add command rename in namespace to out of namespace} {
+} -cleanup {
+    namespace delete tc
+} -result {::tc::tcbar ::tc::tcfoo rename}
+test trace-19.8 {trace add command rename in namespace to out of namespace} -setup {
+    namespace eval tc {}
+    proc tc::tcfoo {} {}
+} -body {
+    trace add command tc::tcfoo rename traceCommand
     rename tc::tcfoo tcbar
     set info
-} {::tc::tcfoo ::tcbar rename}
-test trace-19.9 {trace add command rename back into namespace} {
+} -cleanup {
+    catch {rename tcbar {}}
+    namespace delete tc
+} -result {::tc::tcfoo ::tcbar rename}
+test trace-19.9 {trace add command rename back into namespace} -setup {
+    namespace eval tc {}
+    proc tc::tcfoo {} {}
+} -body {
+    trace add command tc::tcfoo rename traceCommand
+    rename tc::tcfoo tcbar
     rename tcbar tc::tcfoo
     set info
-} {::tcbar ::tc::tcfoo rename}
+} -cleanup {
+    namespace delete tc
+} -result {::tcbar ::tc::tcfoo rename}
 test trace-19.10 {trace add command failed rename doesn't trigger trace} {
     set info {}
     proc foo {} {}
@@ -1353,11 +1375,18 @@ test trace-19.10 {trace add command failed rename doesn't trigger trace} {
 } {}
 catch {rename foo {}}
 catch {rename bar {}}
-test trace-19.11 {trace add command qualifies when renamed in namespace} {
+
+test trace-19.11 {trace add command qualifies when renamed in namespace} -setup {
+    namespace eval tc {}
+    proc tc::tcfoo {} {}
+} -body {
     set info {}
+    trace add command tc::tcfoo {rename delete} traceCommand
     namespace eval tc {rename tcfoo tcbar}
     set info
-} {::tc::tcfoo ::tc::tcbar rename}
+} -cleanup {
+    namespace delete tc
+} -result {::tc::tcfoo ::tc::tcbar rename}
 
 # Make sure it exists again
 proc foo {} {}
@@ -1542,8 +1571,7 @@ proc foo {b} { set a $b }
 # Delete arrays when done, so they can be re-used as scalars
 # elsewhere.
 
-catch {unset x}
-catch {unset y}
+unset -nocomplain x y
 
 # Delete procedures when done, so we don't clash with other tests
 # (e.g. foobar will clash with 'unknown' tests).
@@ -1674,6 +1702,16 @@ test trace-21.11 {trace execution and alias} -setup {
     rename ::x {}
 } -result {:: ::}
 
+proc set2 args {
+    set {*}$args
+}
+
+test trace-21.12 {bug 2438181} -setup {
+    trace add execution set2 leave {puts one two three #;}
+} -body {
+    set2 a hello
+} -returnCodes 1 -result {wrong # args: should be "puts ?-nonewline? ?channelId? string"}
+
 proc factorial {n} {
     if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }
     return 1
@@ -2050,7 +2088,7 @@ test trace-28.1 {enterstep and leavestep traces with update idletasks (615043)}
     trace remove execution foo {enter enterstep leavestep leave} \
         [list traceExecute foo]
     rename foo {}
-    catch {unset a}
+    unset -nocomplain a
     join $info "\n"
 } {foo foo enter
 foo {set a 1} enterstep
@@ -2623,6 +2661,13 @@ test trace-39.1 {bug #3485022: tracing Bc'ed commands} -setup {
     rename dotrace {}
     rename foo {}
 } -result {3 | 0 1 1}
+
+test trace-40.1 {execution trace errors become command errors} {
+    proc foo args {}
+    trace add execution foo enter {rename foo {}; error bar;#}
+    catch foo m
+    return -level 0 $m[unset m]
+} bar
     
 # Delete procedures when done, so we don't clash with other tests
 # (e.g. foobar will clash with 'unknown' tests).
@@ -2634,9 +2679,8 @@ catch {rename traceproc {}}
 catch {rename runbase {}}
 
 # Unset the variable when done
-catch {unset info}
-catch {unset base}
+unset -nocomplain info base
 
 # cleanup
-::tcltest::cleanupTests
+cleanupTests
 return
diff --git a/tests/unixFCmd.test b/tests/unixFCmd.test
index 2453e01..2d227fe 100644
--- a/tests/unixFCmd.test
+++ b/tests/unixFCmd.test
@@ -59,7 +59,7 @@ if {[testConstraint unix]} {
 }
 
 proc openup {path} {
-    testchmod 777 $path
+    testchmod 0o777 $path
     if {[file isdirectory $path]} {
 	catch {
 	    foreach p [glob -directory $path *] {
@@ -365,20 +365,21 @@ test unixFCmd-17.4 {SetPermissionsAttribute} -setup {
 
 close [open foo.test w]
 set ::i 4
-proc permcheck {testnum permstr expected} {
+proc permcheck {testnum permList expected} {
     test $testnum {SetPermissionsAttribute} {unix notRoot} {
+      set result {}
+      foreach permstr $permList {
 	file attributes foo.test -permissions $permstr
-	file attributes foo.test -permissions
+	lappend result [file attributes foo.test -permissions]
+      }
+      set result
     } $expected
 }
 permcheck unixFCmd-17.5   rwxrwxrwx	00777
 permcheck unixFCmd-17.6   r--r---w-	00442
-permcheck unixFCmd-17.7   0		00000
-permcheck unixFCmd-17.8   u+rwx,g+r	00740
-permcheck unixFCmd-17.9   u-w		00540
-permcheck unixFCmd-17.10   o+rwx	00547
+permcheck unixFCmd-17.7   {0 u+rwx,g+r u-w o+rwx} {00000 00740 00540 00547}
 permcheck unixFCmd-17.11  --x--x--x	00111
-permcheck unixFCmd-17.12  a+rwx		00777
+permcheck unixFCmd-17.12  {0 a+rwx} {00000 00777}
 file delete -force -- foo.test
 
 test unixFCmd-18.1 {Unix pwd} -constraints {unix notRoot nonPortable} -setup {
diff --git a/tests/unixForkEvent.test b/tests/unixForkEvent.test
new file mode 100644
index 0000000..120f362
--- /dev/null
+++ b/tests/unixForkEvent.test
@@ -0,0 +1,45 @@
+# This file contains a collection of tests for the procedures in the file
+# tclUnixNotify.c.  Sourcing this file into Tcl runs the tests and
+# generates output for errors.  No output means no errors were found.
+#
+# Copyright (c) 1995-1997 Sun Microsystems, Inc.
+# Copyright (c) 1998-1999 by Scriptics Corporation.
+#
+# See the file "license.terms" for information on usage and redistribution
+# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+
+package require tcltest 2
+namespace import -force ::tcltest::*
+
+testConstraint testfork [llength [info commands testfork]]
+
+# Test if the notifier thread is well initialized in a forked interpreter
+# by Tcl_InitNotifier
+test unixforkevent-1.1 {fork and test writeable event} \
+    -constraints {testfork nonPortable} \
+    -body {
+	set myFolder [makeDirectory unixtestfork]
+	set pid [testfork]
+	if {$pid == 0} {
+	    # we are the forked process
+	    set result initialized
+	    set h [open [file join $myFolder test.txt] w]
+	    fileevent $h writable\
+		    "set result writable;\
+		    after cancel [after 1000 {set result timeout}]"
+	    vwait result
+	    close $h
+	    makeFile $result result.txt $myFolder
+	    exit
+	}
+	# we are the original process
+	while {![file readable [file join $myFolder result.txt]]} {}
+	viewFile result.txt $myFolder
+    } \
+    -result {writable} \
+    -cleanup { 
+	catch { removeFolder $myFolder }
+    }
+
+::tcltest::cleanupTests
+return
diff --git a/tests/unixInit.test b/tests/unixInit.test
index 9ba9c11..05338ed 100644
--- a/tests/unixInit.test
+++ b/tests/unixInit.test
@@ -11,7 +11,7 @@
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
 package require tcltest 2.2
-namespace import -force ::tcltest::*
+namespace import ::tcltest::*
 unset -nocomplain path
 catch {set oldlang $env(LANG)}
 set env(LANG) C
@@ -44,11 +44,11 @@ test unixInit-1.2 {initialisation: standard channel type deduction} {unix stdio}
     set pipe1 [open "|[list [interpreter]]" r+]
     puts $pipe1 {
 	proc accept {channel host port} {
-	    puts $channel {puts [fconfigure stdin -peername]; exit}
+	    puts $channel {puts [chan configure stdin -peername]; exit}
 	    close $channel
 	    exit
 	}
-	puts [fconfigure [socket -server accept -myaddr 127.0.0.1 0] -sockname]
+	puts [chan configure [socket -server accept -myaddr 127.0.0.1 0] -sockname]
 	vwait forever \
 	    }
     # Note the backslash above; this is important to make sure that the whole
@@ -64,8 +64,8 @@ test unixInit-1.2 {initialisation: standard channel type deduction} {unix stdio}
     set pipe2 [open "|[list [interpreter] <@$sock]" r]
     set result [gets $pipe2]
     # Clear any pending data; stops certain kinds of (non-important) errors
-    fconfigure $pipe1 -blocking 0; gets $pipe1
-    fconfigure $pipe2 -blocking 0; gets $pipe2
+    chan configure $pipe1 -blocking 0; gets $pipe1
+    chan configure $pipe2 -blocking 0; gets $pipe2
     # Close the pipes and the socket.
     close $pipe2
     close $pipe1
@@ -329,7 +329,7 @@ test unixInit-3.1 {TclpSetInitialEncodings} -constraints {
 } -body {
     set env(LANG) C
     set f [open "|[list [interpreter]]" w+]
-    fconfigure $f -buffering none
+    chan configure $f -buffering none
     puts $f {puts [encoding system]; exit}
     set enc [gets $f]
     close $f
@@ -344,7 +344,7 @@ test unixInit-3.2 {TclpSetInitialEncodings} -setup {
     set env(LANG) japanese
     set env(LC_ALL) japanese
     set f [open "|[list [interpreter]]" w+]
-    fconfigure $f -buffering none
+    chan configure $f -buffering none
     puts $f {puts [encoding system]; exit}
     set enc [gets $f]
     close $f
@@ -390,7 +390,7 @@ test unixInit-7.1 {closed standard channel: Bug 772288} -constraints {
 } -returnCodes 0
 
 # cleanup
-catch {unset env(LANG)}
+unset -nocomplain env(LANG)
 catch {set env(LANG) $oldlang}
 unset -nocomplain path
 ::tcltest::cleanupTests
diff --git a/tests/unixNotfy.test b/tests/unixNotfy.test
index 0646a3d..2f03529 100644
--- a/tests/unixNotfy.test
+++ b/tests/unixNotfy.test
@@ -17,7 +17,7 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
 
 # When run in a Tk shell, these tests hang.
 testConstraint noTk [expr {0 != [catch {package present Tk}]}]
-testConstraint thread [expr {0 == [catch {package require Thread 2.6}]}]
+testConstraint thread [expr {0 == [catch {package require Thread 2.7-}]}]
 # Darwin always uses a threaded notifier
 testConstraint unthreaded [expr {
     ![::tcl::pkgconfig get threaded]
diff --git a/tests/unknown.test b/tests/unknown.test
index 40be6602..e80d3a6 100644
--- a/tests/unknown.test
+++ b/tests/unknown.test
@@ -11,12 +11,10 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
-    package require tcltest
-    namespace import -force ::tcltest::*
-}
+package require tcltest 2
+namespace import ::tcltest::*
 
-catch {unset x}
+unset -nocomplain x
 catch {rename unknown unknown.old}
 
 test unknown-1.1 {non-existent "unknown" command} {
@@ -59,7 +57,7 @@ test unknown-4.1 {errors in "unknown" procedure} {
 # cleanup
 catch {rename unknown {}}
 catch {rename unknown.old unknown}
-::tcltest::cleanupTests
+cleanupTests
 return 
 
 # Local Variables:
diff --git a/tests/upvar.test b/tests/upvar.test
index e2c9ffd..5ea870d 100644
--- a/tests/upvar.test
+++ b/tests/upvar.test
@@ -339,7 +339,7 @@ test upvar-8.9 {upvar won't create namespace variable that refers to procedure v
 	unset ::test_ns_1::a
     }
     MakeLink 1
-} -result {bad variable name "a": upvar won't create namespace variable that refers to procedure variable}
+} -result {bad variable name "a": can't create namespace variable that refers to procedure variable}
 test upvar-8.10 {upvar will create element alias for new array element} -setup {
     catch {unset upvarArray}
 } -body {
@@ -414,6 +414,17 @@ test upvar-9.7 {Tcl_UpVar procedure} testupvar {
 } {1234}
 catch {unset a}
 
+test upvar-10.1 {CompileWord OBOE} -setup {
+    proc linenumber {} {dict get [info frame -1] line}
+} -body {
+    apply {n {
+        upvar 1 {*}{
+        } [return [incr n -[linenumber]]] x
+    }} [linenumber]
+} -cleanup {
+    rename linenumber {}
+} -result 1
+
 #
 # Tests for 'namespace upvar'. As the implementation is essentially the same as
 # for 'upvar', we only test that the variables are linked correctly, i.e., we
@@ -536,6 +547,37 @@ test upvar-NS-2.2 {TIP 323} -setup {
 } -cleanup {
     namespace delete test_ns_1
 } -result {}
+
+test upvar-NS-3.1 {CompileWord OBOE} -setup {
+    proc linenumber {} {dict get [info frame -1] line}
+} -body {
+    apply {n {
+        namespace upvar {*}{
+        } [return [incr n -[linenumber]]] x y
+    }} [linenumber]
+} -cleanup {
+    rename linenumber {}
+} -result 1
+test upvar-NS-3.2 {CompileWord OBOE} -setup {
+    proc linenumber {} {dict get [info frame -1] line}
+} -body {
+    apply {n {
+        namespace upvar :: {*}{
+        } [return [incr n -[linenumber]]] x
+    }} [linenumber]
+} -cleanup {
+    rename linenumber {}
+} -result 1
+test upvar-NS-3.3 {CompileWord OBOE} -setup {
+    proc linenumber {} {dict get [info frame -1] line}
+} -body {
+    apply {n {
+        variable x {*}{
+        } [return [incr n -[linenumber]]]
+    }} [linenumber]
+} -cleanup {
+    rename linenumber {}
+} -result 1
 
 # cleanup
 ::tcltest::cleanupTests
diff --git a/tests/utf.test b/tests/utf.test
index c41cfe3..ceb1af7 100644
--- a/tests/utf.test
+++ b/tests/utf.test
@@ -16,50 +16,52 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
 ::tcltest::loadTestedCommands
 catch [list package require -exact Tcltest [info patchlevel]]
 
+testConstraint testbytestring [llength [info commands testbytestring]]
+
 catch {unset x}
 
-test utf-1.1 {Tcl_UniCharToUtf: 1 byte sequences} {
-    set x \x01
-} [bytestring "\x01"]
-test utf-1.2 {Tcl_UniCharToUtf: 2 byte sequences} {
-    set x "\x00"
-} [bytestring "\xc0\x80"]
-test utf-1.3 {Tcl_UniCharToUtf: 2 byte sequences} {
-    set x "\xe0"
-} [bytestring "\xc3\xa0"]
-test utf-1.4 {Tcl_UniCharToUtf: 3 byte sequences} {
-    set x "\u4e4e"
-} [bytestring "\xe4\xb9\x8e"]
-test utf-1.5 {Tcl_UniCharToUtf: overflowed Tcl_UniChar} {
-    format %c 0x110000
-} [bytestring "\xef\xbf\xbd"]
-test utf-1.6 {Tcl_UniCharToUtf: negative Tcl_UniChar} {
-    format %c -1
-} [bytestring "\xef\xbf\xbd"]
+test utf-1.1 {Tcl_UniCharToUtf: 1 byte sequences} testbytestring {
+    expr {"\x01" eq [testbytestring "\x01"]}
+} 1
+test utf-1.2 {Tcl_UniCharToUtf: 2 byte sequences} testbytestring {
+    expr {"\x00" eq [testbytestring "\xc0\x80"]}
+} 1
+test utf-1.3 {Tcl_UniCharToUtf: 2 byte sequences} testbytestring {
+    expr {"\xe0" eq [testbytestring "\xc3\xa0"]}
+} 1
+test utf-1.4 {Tcl_UniCharToUtf: 3 byte sequences} testbytestring {
+    expr {"\u4e4e" eq [testbytestring "\xe4\xb9\x8e"]}
+} 1
+test utf-1.5 {Tcl_UniCharToUtf: overflowed Tcl_UniChar} testbytestring {
+    expr {[format %c 0x110000] eq [testbytestring "\xef\xbf\xbd"]}
+} 1
+test utf-1.6 {Tcl_UniCharToUtf: negative Tcl_UniChar} testbytestring {
+    expr {[format %c -1] eq [testbytestring "\xef\xbf\xbd"]}
+} 1
 
 test utf-2.1 {Tcl_UtfToUniChar: low ascii} {
     string length "abc"
 } {3}
-test utf-2.2 {Tcl_UtfToUniChar: naked trail bytes} {
-    string length [bytestring "\x82\x83\x84"]
+test utf-2.2 {Tcl_UtfToUniChar: naked trail bytes} testbytestring {
+    string length [testbytestring "\x82\x83\x84"]
 } {3}
-test utf-2.3 {Tcl_UtfToUniChar: lead (2-byte) followed by non-trail} {
-    string length [bytestring "\xC2"]
+test utf-2.3 {Tcl_UtfToUniChar: lead (2-byte) followed by non-trail} testbytestring {
+    string length [testbytestring "\xC2"]
 } {1}
-test utf-2.4 {Tcl_UtfToUniChar: lead (2-byte) followed by trail} {
-    string length [bytestring "\xC2\xa2"]
+test utf-2.4 {Tcl_UtfToUniChar: lead (2-byte) followed by trail} testbytestring {
+    string length [testbytestring "\xC2\xa2"]
 } {1}
-test utf-2.5 {Tcl_UtfToUniChar: lead (3-byte) followed by non-trail} {
-    string length [bytestring "\xE2"]
+test utf-2.5 {Tcl_UtfToUniChar: lead (3-byte) followed by non-trail} testbytestring {
+    string length [testbytestring "\xE2"]
 } {1}
-test utf-2.6 {Tcl_UtfToUniChar: lead (3-byte) followed by 1 trail} {
-    string length [bytestring "\xE2\xA2"]
+test utf-2.6 {Tcl_UtfToUniChar: lead (3-byte) followed by 1 trail} testbytestring {
+    string length [testbytestring "\xE2\xA2"]
 } {2}
-test utf-2.7 {Tcl_UtfToUniChar: lead (3-byte) followed by 2 trail} {
-    string length [bytestring "\xE4\xb9\x8e"]
+test utf-2.7 {Tcl_UtfToUniChar: lead (3-byte) followed by 2 trail} testbytestring {
+    string length [testbytestring "\xE4\xb9\x8e"]
 } {1}
-test utf-2.8 {Tcl_UtfToUniChar: longer UTF sequences not supported} {
-    string length [bytestring "\xF4\xA2\xA2\xA2"]
+test utf-2.8 {Tcl_UtfToUniChar: longer UTF sequences not supported} testbytestring {
+    string length [testbytestring "\xF4\xA2\xA2\xA2"]
 } {4}
 
 test utf-3.1 {Tcl_UtfCharComplete} {
@@ -69,26 +71,26 @@ testConstraint testnumutfchars [llength [info commands testnumutfchars]]
 test utf-4.1 {Tcl_NumUtfChars: zero length} testnumutfchars {
     testnumutfchars ""
 } {0}
-test utf-4.2 {Tcl_NumUtfChars: length 1} testnumutfchars {
-    testnumutfchars [bytestring "\xC2\xA2"]
+test utf-4.2 {Tcl_NumUtfChars: length 1} {testnumutfchars testbytestring} {
+    testnumutfchars [testbytestring "\xC2\xA2"]
 } {1}
-test utf-4.3 {Tcl_NumUtfChars: long string} testnumutfchars {
-    testnumutfchars [bytestring "abc\xC2\xA2\xe4\xb9\x8e\uA2\u4e4e"]
+test utf-4.3 {Tcl_NumUtfChars: long string} {testnumutfchars testbytestring} {
+    testnumutfchars [testbytestring "abc\xC2\xA2\xe4\xb9\x8e\uA2\u4e4e"]
 } {7}
-test utf-4.4 {Tcl_NumUtfChars: #u0000} testnumutfchars {
-    testnumutfchars [bytestring "\xC0\x80"]
+test utf-4.4 {Tcl_NumUtfChars: #u0000} {testnumutfchars testbytestring} {
+    testnumutfchars [testbytestring "\xC0\x80"]
 } {1}
 test utf-4.5 {Tcl_NumUtfChars: zero length, calc len} testnumutfchars {
     testnumutfchars "" 1
 } {0}
-test utf-4.6 {Tcl_NumUtfChars: length 1, calc len} testnumutfchars {
-    testnumutfchars [bytestring "\xC2\xA2"] 1
+test utf-4.6 {Tcl_NumUtfChars: length 1, calc len} {testnumutfchars testbytestring} {
+    testnumutfchars [testbytestring "\xC2\xA2"] 1
 } {1}
-test utf-4.7 {Tcl_NumUtfChars: long string, calc len} testnumutfchars {
-    testnumutfchars [bytestring "abc\xC2\xA2\xe4\xb9\x8e\uA2\u4e4e"] 1
+test utf-4.7 {Tcl_NumUtfChars: long string, calc len} {testnumutfchars testbytestring} {
+    testnumutfchars [testbytestring "abc\xC2\xA2\xe4\xb9\x8e\uA2\u4e4e"] 1
 } {7}
-test utf-4.8 {Tcl_NumUtfChars: #u0000, calc len} testnumutfchars {
-    testnumutfchars [bytestring "\xC0\x80"] 1
+test utf-4.8 {Tcl_NumUtfChars: #u0000, calc len} {testnumutfchars testbytestring} {
+    testnumutfchars [testbytestring "\xC0\x80"] 1
 } {1}
 
 test utf-5.1 {Tcl_UtfFindFirsts} {
@@ -125,18 +127,18 @@ test utf-10.1 {Tcl_UtfBackslash: dst == NULL} {
     set x \n
 } {
 }
-test utf-10.2 {Tcl_UtfBackslash: \u subst} {
-    set x \ua2
-} [bytestring "\xc2\xa2"]
-test utf-10.3 {Tcl_UtfBackslash: longer \u subst} {
-    set x \u4e21
-} [bytestring "\xe4\xb8\xa1"]
-test utf-10.4 {Tcl_UtfBackslash: stops at first non-hex} {
-    set x \u4e2k
-} "[bytestring \xd3\xa2]k"
-test utf-10.5 {Tcl_UtfBackslash: stops after 4 hex chars} {
-    set x \u4e216
-} "[bytestring \xe4\xb8\xa1]6"
+test utf-10.2 {Tcl_UtfBackslash: \u subst} testbytestring {
+    expr {"\ua2" eq [testbytestring "\xc2\xa2"]}
+} 1
+test utf-10.3 {Tcl_UtfBackslash: longer \u subst} testbytestring {
+    expr {"\u4e21" eq [testbytestring "\xe4\xb8\xa1"]}
+} 1
+test utf-10.4 {Tcl_UtfBackslash: stops at first non-hex} testbytestring {
+    expr {"\u4e2k" eq "[testbytestring \xd3\xa2]k"}
+} 1
+test utf-10.5 {Tcl_UtfBackslash: stops after 4 hex chars} testbytestring {
+    expr {"\u4e216" eq "[testbytestring \xe4\xb8\xa1]6"}
+} 1
 proc bsCheck {char num} {
     global errNum
     test utf-10.$errNum {backslash substitution} {
@@ -285,23 +287,25 @@ test utf-18.5 {Tcl_UniCharToTitle, no delta} {
     string totitle !
 } !
 
-test utf-19.1 {TclUniCharLen} {
+test utf-19.1 {TclUniCharLen} -body {
     list [regexp \\d abc456def foo] $foo
-} {1 4}
+} -cleanup {
+    unset -nocomplain foo
+} -result {1 4}
 
 test utf-20.1 {TclUniCharNcmp} {
 } {}
 
 test utf-21.1 {TclUniCharIsAlnum} {
-    # this returns 1 with Unicode 6 compliance
+    # this returns 1 with Unicode 7 compliance
     string is alnum \u1040\u021f\u0220
 } {1}
 test utf-21.2 {unicode alnum char in regc_locale.c} {
-    # this returns 1 with Unicode 6 compliance
+    # this returns 1 with Unicode 7 compliance
     list [regexp {^[[:alnum:]]+$} \u1040\u021f\u0220] [regexp {^\w+$} \u1040\u021f\u0220]
 } {1 1}
 test utf-21.3 {unicode print char in regc_locale.c} {
-    # this returns 1 with Unicode 6 compliance
+    # this returns 1 with Unicode 7 compliance
     regexp {^[[:print:]]+$} \ufbc1
 } 1
 test utf-21.4 {TclUniCharIsGraph} {
@@ -334,11 +338,11 @@ test utf-21.10 {unicode print char in regc_locale.c} {
 } {0}
 test utf-21.11 {TclUniCharIsControl} {
     # [Bug 3464428]
-    string is control \u00ad
+    string is control \u0000\u001f\u00ad\u0605\u061c\u180e\u2066\ufeff
 } {1}
 test utf-21.12 {unicode control char in regc_locale.c} {
-    # [Bug 3464428]
-    regexp {^[[:cntrl:]]$} \u00ad
+    # [Bug 3464428], [Bug a876646efe]
+    regexp {^[[:cntrl:]]*$} \u0000\u001f\u00ad\u0605\u061c\u180e\u2066\ufeff
 } {1}
 
 test utf-22.1 {TclUniCharIsWordChar} {
@@ -349,30 +353,30 @@ test utf-22.2 {TclUniCharIsWordChar} {
 } 10
 
 test utf-23.1 {TclUniCharIsAlpha} {
-    # this returns 1 with Unicode 6 compliance
-    string is alpha \u021f\u0220
+    # this returns 1 with Unicode 7 compliance
+    string is alpha \u021f\u0220\u037f\u052f
 } {1}
 test utf-23.2 {unicode alpha char in regc_locale.c} {
-    # this returns 1 with Unicode 6 compliance
-    regexp {^[[:alpha:]]+$} \u021f\u0220
+    # this returns 1 with Unicode 7 compliance
+    regexp {^[[:alpha:]]+$} \u021f\u0220\u037f\u052f
 } {1}
 
 test utf-24.1 {TclUniCharIsDigit} {
-    # this returns 1 with Unicode 6 compliance
+    # this returns 1 with Unicode 7 compliance
     string is digit \u1040\uabf0
 } {1}
 test utf-24.2 {unicode digit char in regc_locale.c} {
-    # this returns 1 with Unicode 6 compliance
+    # this returns 1 with Unicode 7 compliance
     list [regexp {^[[:digit:]]+$} \u1040\uabf0] [regexp {^\d+$} \u1040\uabf0]
 } {1 1}
 
 test utf-24.3 {TclUniCharIsSpace} {
-    # this returns 1 with Unicode 6 compliance
-    string is space \u1680\u180e
+    # this returns 1 with Unicode 7/TIP 413 compliance
+    string is space \u0085\u1680\u180e\u200b\u202f\u2060
 } {1}
 test utf-24.4 {unicode space char in regc_locale.c} {
-    # this returns 1 with Unicode 6 compliance
-    list [regexp {^[[:space:]]+$} \u1680\u180e] [regexp {^\s+$} \u1680\u180e]
+    # this returns 1 with Unicode 7/TIP 413 compliance
+    list [regexp {^[[:space:]]+$} \u0085\u1680\u180e\u200b\u202f\u2060] [regexp {^\s+$} \u0085\u1680\u180e\u200b\u202f\u2060]
 } {1 1}
 
 testConstraint teststringobj [llength [info commands teststringobj]]
diff --git a/tests/util.test b/tests/util.test
index 0e50483..7782f35 100644
--- a/tests/util.test
+++ b/tests/util.test
@@ -16,6 +16,7 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
 catch [list package require -exact Tcltest [info patchlevel]]
 
 testConstraint controversialNaN 1
+testConstraint testbytestring [llength [info commands testbytestring]]
 testConstraint testdstring [llength [info commands testdstring]]
 testConstraint testconcatobj [llength [info commands testconcatobj]]
 testConstraint testdoubledigits [llength [info commands testdoubledigits]]
@@ -274,10 +275,10 @@ test util-5.17 {Tcl_StringMatch: UTF-8} {
     # get 1 UTF-8 character
     Wrapper_Tcl_StringMatch "a\[a\u4e4fc]c" "a\u4e4fc"
 } 1
-test util-5.18 {Tcl_StringMatch: UTF-8} {
+test util-5.18 {Tcl_StringMatch: UTF-8} testbytestring {
     # pattern += Tcl_UtfToUniChar(pattern, &endChar);
     # proper advance: wrong answer would match on UTF trail byte of \u4e4f
-    Wrapper_Tcl_StringMatch {a[a\u4e4fc]c} [bytestring a\u008fc]
+    Wrapper_Tcl_StringMatch {a[a\u4e4fc]c} [testbytestring a\u008fc]
 } 0
 test util-5.19 {Tcl_StringMatch: UTF-8} {
     # pattern += Tcl_UtfToUniChar(pattern, &endChar);
diff --git a/tests/var.test b/tests/var.test
index ed7e930..7ff394e 100644
--- a/tests/var.test
+++ b/tests/var.test
@@ -289,7 +289,7 @@ test var-3.11 {MakeUpvar, my var looks like array elem} -setup {
 } -returnCodes error -body {
     set aaaaa 789789
     upvar #0 aaaaa foo(bar)
-} -result {bad variable name "foo(bar)": upvar won't create a scalar variable that looks like an array element}
+} -result {bad variable name "foo(bar)": can't create a scalar variable that looks like an array element}
 
 test var-4.1 {Tcl_GetVariableName, global variable} testgetvarfullname {
     catch {unset a}
@@ -748,6 +748,9 @@ test var-15.1 {segfault in [unset], [Bug 735335]} {
     namespace eval test A useSomeUnlikelyNameHere
     namespace eval test unset useSomeUnlikelyNameHere
 } {}
+test var-15.2 {compiled unset evaluation order, Bug 3970f54c4e} {
+    apply {{} {unset foo [return ok]}}
+} ok
 
 test var-16.1 {CallVarTraces: save/restore interp error state} {
     trace add variable ::errorCode write " ;#"
@@ -793,6 +796,104 @@ test var-19.1 {crash when freeing locals hashtable: Bug 3037525} {
     foo ; # This crashes without the fix for the bug
     rename foo {}
 } {}
+
+test var-20.1 {array set compilation correctness: Bug 3603163} -setup {
+    unset -nocomplain x
+} -body {
+    apply {{} {
+	global x
+	array set x {a 1}
+    }}
+    array size x
+} -result 1
+test var-20.2 {array set compilation correctness: Bug 3603163} -setup {
+    unset -nocomplain x
+} -body {
+    apply {{} {
+	global x
+	array set x {}
+    }}
+    array size x
+} -result 0
+test var-20.3 {array set compilation correctness: Bug 3603163} -setup {
+    unset -nocomplain x
+} -body {
+    apply {{} {
+	array set ::x {a 1}
+    }}
+    array size x
+} -result 1
+test var-20.4 {array set compilation correctness: Bug 3603163} -setup {
+    unset -nocomplain x
+} -body {
+    apply {{} {
+	array set ::x {}
+    }}
+    array size x
+} -result 0
+test var-20.5 {array set compilation correctness: Bug 3603163} -setup {
+    unset -nocomplain x
+} -body {
+    apply {{} {
+	global x
+	eval {array set x {a 1}}
+    }}
+    array size x
+} -result 1
+test var-20.6 {array set compilation correctness: Bug 3603163} -setup {
+    unset -nocomplain x
+} -body {
+    apply {{} {
+	global x
+	eval {array set x {}}
+    }}
+    array size x
+} -result 0
+test var-20.7 {array set compilation correctness: Bug 3603163} -setup {
+    unset -nocomplain x
+} -body {
+    apply {{} {
+	eval {array set ::x {a 1}}
+    }}
+    array size x
+} -result 1
+test var-20.8 {array set compilation correctness: Bug 3603163} -setup {
+    unset -nocomplain x
+} -body {
+    apply {{} {
+	eval {array set ::x {}}
+    }}
+    array size x
+} -result 0
+test var-20.9 {[bc1a96407a] array set compiled w/ trace} -setup {
+    variable foo
+    variable lambda
+    unset -nocomplain lambda foo
+    array set foo {}
+    lappend lambda {}
+    lappend lambda [list array set [namespace which -variable foo] {a 1}]
+} -body {
+    after 0 [list apply $lambda]
+    vwait [namespace which -variable foo]
+} -cleanup {
+    unset -nocomplain lambda foo
+} -result {}
+test var-20.10 {[bc1a96407a] array set don't compile bad varname} -body {
+    apply {{} {set name foo(bar); array set $name {a 1}}}
+} -returnCodes error -match glob -result *
+
+test var-21.0 {PushVarNameWord OBOE in compiled unset} -setup {
+    proc linenumber {} {dict get [info frame -1] line}
+} -body {
+    apply {n {
+	set foo bar
+        unset foo {*}{
+        } [return [incr n -[linenumber]]]
+    }} [linenumber]
+} -cleanup {
+    rename linenumber {}
+} -result 1
+
 
 catch {namespace delete ns}
 catch {unset arr}
diff --git a/tests/winDde.test b/tests/winDde.test
index 8d9bd12..f04fb45 100644
--- a/tests/winDde.test
+++ b/tests/winDde.test
@@ -20,7 +20,7 @@ testConstraint dde 0
 if {[testConstraint win]} {
     if {![catch {
 	    ::tcltest::loadTestedCommands
-	    set ::ddever [package require dde 1.4.0b1]
+	    set ::ddever [package require dde 1.4.0]
 	    set ::ddelib [lindex [package ifneeded dde $::ddever] 1]}]} {
 	testConstraint dde 1
     }
@@ -104,7 +104,7 @@ proc createChildProcess {ddeServerName args} {
 # -------------------------------------------------------------------------
 test winDde-1.0 {check if we are testing the right dll} {win dde} {
     set ::ddever
-} {1.4.0b1}
+} {1.4.0}
 
 test winDde-1.1 {Settings the server's topic name} -constraints dde -body {
     list [dde servername foobar] [dde servername] [dde servername self]
@@ -203,8 +203,8 @@ test winDde-4.3 {DDE request remotely} -constraints {dde stdio} -body {
     set \xe1 ""
     set name ch\xEDld-4.3
     set child [createChildProcess $name]
-    dde execute TclEval $name [list set a foo]
-    set \xe1 [dde request TclEval $name a]
+    dde execute TclEval $name [list set \xe1 foo]
+    set \xe1 [dde request TclEval $name \xe1]
     dde execute TclEval $name {set done 1}
     update
     set \xe1
diff --git a/tests/winFCmd.test b/tests/winFCmd.test
index 28a0e9f..a808c82 100644
--- a/tests/winFCmd.test
+++ b/tests/winFCmd.test
@@ -208,22 +208,11 @@ test winFCmd-1.13 {TclpRenameFile: errno: EACCES} -setup {
 } -constraints {win win2000orXP testfile} -body {
     testfile mv nul tf1
 } -returnCodes error -result EINVAL
-test winFCmd-1.13.1 {TclpRenameFile: errno: EACCES} -setup {
+test winFCmd-1.14 {TclpRenameFile: errno: EACCES} -setup {
     cleanup
 } -constraints {win nt winOlderThan2000 testfile} -body {
     testfile mv nul tf1
 } -returnCodes error -result EACCES
-test winFCmd-1.13.2 {TclpRenameFile: errno: ENOENT} -setup {
-    cleanup
-} -constraints {win 95 testfile} -body {
-    testfile mv nul tf1
-} -returnCodes error -result ENOENT
-test winFCmd-1.14 {TclpRenameFile: errno: EACCES} -setup {
-    cleanup
-} -constraints {win 95 testfile} -body {
-    createfile tf1
-    testfile mv tf1 nul
-} -returnCodes error -result EACCES
 test winFCmd-1.15 {TclpRenameFile: errno: EEXIST} -setup {
     cleanup
 } -constraints {win nt testfile} -body {
@@ -257,11 +246,6 @@ test winFCmd-1.19.1 {TclpRenameFile: errno == EACCES} -setup {
 } -constraints {win nt winOlderThan2000 testfile} -body {
     testfile mv nul tf1
 } -returnCodes error -result EACCES
-test winFCmd-1.19.2 {TclpRenameFile: errno == ENOENT} -setup {
-    cleanup
-} -constraints {win 95 testfile} -body {
-    testfile mv nul tf1
-} -returnCodes error -result ENOENT
 test winFCmd-1.20 {TclpRenameFile: src is dir} -setup {
     cleanup
 } -constraints {win nt testfile} -body {
@@ -351,12 +335,12 @@ test winFCmd-1.32 {TclpRenameFile: TclpRemoveDirectory succeeds} -setup {
 test winFCmd-1.33 {TclpRenameFile: After removing dst dir, MoveFile fails} \
 	-constraints {win exdev testfile testchmod} -body {
     file mkdir d:/td1
-    testchmod 000 d:/td1
+    testchmod 0 d:/td1
     file mkdir c:/tf1
     catch {testfile mv c:/tf1 d:/td1} msg
     list $msg [file writable d:/td1]
 } -cleanup {
-    catch {testchmod 666 d:/td1}
+    catch {testchmod 0o666 d:/td1}
     file delete d:/td1
     file delete -force c:/tf1
 } -result {EXDEV 0}
@@ -474,29 +458,14 @@ test winFCmd-2.6 {TclpCopyFile: errno: ENOENT} -setup {
 } -returnCodes error -result ENOENT
 test winFCmd-2.7 {TclpCopyFile: errno: EACCES} -setup {
     cleanup
-} -constraints {win 95 testfile} -body {
-    createfile tf1
-    set fd [open tf2 w]
-    testfile cp tf1 tf2
-} -cleanup {
-    close $fd
-    cleanup
-} -returnCodes error -result EACCES
-test winFCmd-2.8 {TclpCopyFile: errno: EACCES} -setup {
-    cleanup
 } -constraints {win win2000orXP testfile} -body {
     testfile cp nul tf1
 } -returnCodes error -result EINVAL
-test winFCmd-2.8.1 {TclpCopyFile: errno: EACCES} -setup {
+test winFCmd-2.8 {TclpCopyFile: errno: EACCES} -setup {
     cleanup
 } -constraints {win nt winOlderThan2000 testfile} -body {
     testfile cp nul tf1
 } -returnCodes error -result EACCES
-test winFCmd-2.9 {TclpCopyFile: errno: ENOENT} -setup {
-    cleanup
-} -constraints {win 95 testfile} -body {
-    testfile cp nul tf1
-} -returnCodes error -result ENOENT
 test winFCmd-2.10 {TclpCopyFile: CopyFile succeeds} -setup {
     cleanup
 } -constraints {win testfile} -body {
@@ -520,11 +489,11 @@ test winFCmd-2.12 {TclpCopyFile: CopyFile succeeds} -setup {
     cleanup
 } -constraints {win testfile} -body {
     createfile tf1 tf1
-    testchmod 000 tf1
+    testchmod 0 tf1
     testfile cp tf1 tf2
     list [contents tf2] [file writable tf2]
 } -cleanup {
-    catch {testchmod 666 tf1}
+    catch {testchmod 0o666 tf1}
     cleanup
 } -result {tf1 0}
 test winFCmd-2.13 {TclpCopyFile: CopyFile fails} -setup {
@@ -566,24 +535,13 @@ test winFCmd-2.17 {TclpCopyFile: dst is readonly} -setup {
 } -constraints {win testfile testchmod} -body {
     createfile tf1 tf1
     createfile tf2 tf2
-    testchmod 000 tf2
+    testchmod 0 tf2
     testfile cp tf1 tf2
     list [file writable tf2] [contents tf2]
 } -cleanup {
-    catch {testchmod 666 tf2}
+    catch {testchmod 0o666 tf2}
     cleanup
 } -result {1 tf1}
-test winFCmd-2.18 {TclpCopyFile: still can't copy onto dst} -setup {
-    cleanup
-} -constraints {win 95 testfile testchmod} -body {
-    createfile tf1
-    createfile tf2
-    testchmod 000 tf2
-    set fd [open tf2]
-    set msg [list [catch {testfile cp tf1 tf2} msg] $msg]
-    close $fd
-    lappend msg [file writable tf2]
-} -result {1 EACCES 0}
 
 test winFCmd-3.1 {TclpDeleteFile: errno: EACCES} -body {
     testfile rm $cdfile $cdrom/dummy~~.fil
@@ -647,7 +605,7 @@ test winFCmd-3.10 {TclpDeleteFile: path is readonly} -setup {
     cleanup
 } -constraints {win testfile testchmod} -body {
     createfile tf1
-    testchmod 000 tf1
+    testchmod 0 tf1
     testfile rm tf1
     file exists tf1
 } -result {0}
@@ -655,20 +613,17 @@ test winFCmd-3.11 {TclpDeleteFile: still can't remove path} -setup {
     cleanup
 } -constraints {win testfile testchmod} -body {
     set fd [open tf1 w]
-    testchmod 000 tf1
+    testchmod 0 tf1
     testfile rm tf1
 } -cleanup {
     close $fd
-    catch {testchmod 666 tf1}
+    catch {testchmod 0o666 tf1}
     cleanup
 } -returnCodes error -result EACCES
 
 test winFCmd-4.1 {TclpCreateDirectory: errno: EACCES} -body {
     testfile mkdir $cdrom/dummy~~.dir
 } -constraints {win nt cdrom testfile} -returnCodes error -result EACCES
-test winFCmd-4.2 {TclpCreateDirectory: errno: EACCES} -body {
-    testfile mkdir $cdrom/dummy~~.dir
-} -constraints {win 95 cdrom testfile} -returnCodes error -result ENOSPC
 test winFCmd-4.3 {TclpCreateDirectory: errno: EEXIST} -setup {
     cleanup
 } -constraints {win testfile} -body {
@@ -703,11 +658,11 @@ test winFCmd-6.1 {TclpRemoveDirectory: errno: EACCES} -setup {
     cleanup
 } -constraints {winVista testfile testchmod} -body {
     file mkdir td1
-    testchmod 000 td1
+    testchmod 0 td1
     testfile rmdir td1
     file exists td1
 } -returnCodes error -cleanup {
-    catch {testchmod 666 td1}
+    catch {testchmod 0o666 td1}
     cleanup
 } -result {td1 EACCES}
 # This next test has a very hokey way of matching...
@@ -757,18 +712,13 @@ test winFCmd-6.9 {TclpRemoveDirectory: errno == EACCES} -setup {
     cleanup
 } -constraints {winVista testfile testchmod} -body {
     file mkdir td1
-    testchmod 000 td1
+    testchmod 0 td1
     testfile rmdir td1
     file exists td1
 } -returnCodes error -cleanup {
-    catch {testchmod 666 td1}
+    catch {testchmod 0o666 td1}
     cleanup
 } -result {td1 EACCES}
-test winFCmd-6.10 {TclpRemoveDirectory: attr == -1} -setup {
-    cleanup
-} -constraints {win 95 testfile} -body {
-    testfile rmdir nul
-} -returnCodes error -result {nul EACCES}
 test winFCmd-6.11 {TclpRemoveDirectory: attr == -1} -setup {
     cleanup
 } -constraints {win nt testfile} -body {
@@ -776,38 +726,18 @@ test winFCmd-6.11 {TclpRemoveDirectory: attr == -1} -setup {
     # WinXP returns EEXIST, WinNT seems to return EACCES.  No policy
     # decision has been made as to which is correct.
 } -returnCodes error -match regexp -result {^/ E(ACCES|EXIST)$}
-# This next test has a very hokey way of matching...
-test winFCmd-6.12 {TclpRemoveDirectory: errno == EACCES} -setup {
-    cleanup
-} -constraints {win 95 testfile} -body {
-    createfile tf1
-    set res [catch {testfile rmdir tf1} msg]
-    # get rid of path
-    set msg [list [file tail [lindex $msg 0]] [lindex $msg 1]]
-    list $res $msg
-} -result {1 {tf1 ENOTDIR}}
 test winFCmd-6.13 {TclpRemoveDirectory: write-protected} -setup {
     cleanup
 } -constraints {winVista testfile testchmod} -body {
     file mkdir td1
-    testchmod 000 td1
+    testchmod 0 td1
     testfile rmdir td1
     file exists td1
 } -cleanup {
-    catch {testchmod 666 td1}
+    catch {testchmod 0o666 td1}
     cleanup
 } -returnCodes error -result {td1 EACCES}
 # This next test has a very hokey way of matching...
-test winFCmd-6.14 {TclpRemoveDirectory: check if empty dir} -setup {
-    cleanup
-} -constraints {win 95 testfile} -body {
-    file mkdir td1/td2
-    set res [catch {testfile rmdir td1} msg]
-    # get rid of path
-    set msg [list [file tail [lindex $msg 0]] [lindex $msg 1]]
-    list $res $msg
-} -result {1 {td1 EEXIST}}
-# This next test has a very hokey way of matching...
 test winFCmd-6.15 {TclpRemoveDirectory: !recursive} -setup {
     cleanup
 } -constraints {win testfile} -body {
@@ -887,11 +817,6 @@ test winFCmd-7.7 {TraverseWinTree: append \ to source if necessary} -setup {
 } -cleanup {
     cleanup
 } -result {tf1}
-test winFCmd-7.8 {TraverseWinTree: append \ to source if necessary} -body {
-    # cdrom can return either d:\ or D:/, but we only care about the errcode
-    testfile rmdir $cdrom/
-} -constraints {win 95 cdrom testfile} -returnCodes error -match glob \
-    -result {* EACCES} ; # was EEXIST, but changed for win98.
 test winFCmd-7.9 {TraverseWinTree: append \ to source if necessary} -body {
     testfile rmdir $cdrom/
 } -constraints {win nt cdrom testfile} -returnCodes error -match glob \
@@ -905,11 +830,11 @@ test winFCmd-7.11 {TraverseWinTree: call TraversalCopy: DOTREE_PRED} -setup {
 } -constraints {win testfile testchmod} -body {
     file mkdir td1
     createfile td1/tf1 tf1
-    testchmod 000 td1
+    testchmod 0 td1
     testfile cpdir td1 td2
     list [file exists td2] [file writable td2]
 } -cleanup {
-    catch {testchmod 666 td1}
+    catch {testchmod 0o666 td1}
     cleanup
 } -result {1 1}
 test winFCmd-7.12 {TraverseWinTree: call TraversalDelete: DOTREE_PRED} -setup {
@@ -930,14 +855,6 @@ test winFCmd-7.13 {TraverseWinTree: append \ to target if necessary} -setup {
 } -cleanup {
     cleanup
 } -result {tf1}
-test winFCmd-7.14 {TraverseWinTree: append \ to target if necessary} -setup {
-    cleanup
-} -constraints {win 95 testfile} -body {
-    file mkdir td1
-    testfile cpdir td1 /
-} -cleanup {
-    cleanup
-} -returnCodes error -result {/ EEXIST}
 test winFCmd-7.15 {TraverseWinTree: append \ to target if necessary} -setup {
     cleanup
 } -constraints {win nt testfile} -body {
@@ -984,11 +901,11 @@ test winFCmd-7.19 {TraverseWinTree: call TraversalCopy: DOTREE_POSTD} -setup {
 } -constraints {win testfile testchmod} -body {
     file mkdir td1
     createfile td1/tf1 tf1
-    testchmod 000 td1
+    testchmod 0 td1
     testfile cpdir td1 td2
     list [file exists td2] [file writable td2]
 } -cleanup {
-    catch {testchmod 666 td1}
+    catch {testchmod 0o666 td1}
     cleanup
 } -result {1 1}
 test winFCmd-7.20 {TraverseWinTree: call TraversalDelete: DOTREE_POSTD} -setup {
@@ -1015,11 +932,11 @@ test winFCmd-8.2 {TraversalCopy: DOTREE_PRED} -setup {
     cleanup
 } -constraints {win testfile testchmod} -body {
     file mkdir td1/td2
-    testchmod 000 td1
+    testchmod 0 td1
     testfile cpdir td1 td2
     list [file writable td1] [file writable td1/td2]
 } -cleanup {
-    catch {testchmod 666 td1}
+    catch {testchmod 0o666 td1}
     cleanup
 } -result {0 1}
 test winFCmd-8.3 {TraversalCopy: DOTREE_POSTD} -setup {
@@ -1038,24 +955,15 @@ test winFCmd-9.1 {TraversalDelete: DOTREE_F} -setup {
     createfile td1/tf1
     testfile rmdir -force td1
 } -result {}
-test winFCmd-9.2 {TraversalDelete: DOTREE_F} -setup {
-    cleanup
-} -constraints {win 95 testfile} -body {
-    file mkdir td1
-    set fd [open td1/tf1 w]
-    testfile rmdir -force td1
-} -cleanup {
-    close $fd
-} -returnCodes error -result {td1\tf1 EACCES}
 test winFCmd-9.3 {TraversalDelete: DOTREE_PRED} -setup {
     cleanup
 } -constraints {winVista testfile testchmod} -body {
     file mkdir td1/td2
-    testchmod 000 td1
+    testchmod 0 td1
     testfile rmdir -force td1
     file exists td1
 } -cleanup {
-    catch {testchmod 666 td1}
+    catch {testchmod 0o666 td1}
     cleanup
 } -returnCodes error -result {td1 EACCES}
 test winFCmd-9.4 {TraversalDelete: DOTREE_POSTD} -setup {
@@ -1406,14 +1314,14 @@ test winFCmd-18.1.2 {Windows reserved path names} -constraints win -body {
     file pathtype com4
 } -result "absolute"
 test winFCmd-18.1.3 {Windows reserved path names} -constraints win -body {
-    file pathtype com5
-} -result "relative"
+    file pathtype com9
+} -result "absolute"
 test winFCmd-18.1.4 {Windows reserved path names} -constraints win -body {
     file pathtype lpt3
 } -result "absolute"
 test winFCmd-18.1.5 {Windows reserved path names} -constraints win -body {
-    file pathtype lpt4
-} -result "relative"
+    file pathtype lpt9
+} -result "absolute"
 test winFCmd-18.1.6 {Windows reserved path names} -constraints win -body {
     file pathtype nul
 } -result "absolute"
@@ -1477,10 +1385,10 @@ test winFCmd-19.5 {Windows extended path names} -constraints nt -setup {
     list [catch {
         set f [open $tmpfile [list WRONLY CREAT]]
         close $f
-    } res] errormsg ;#$res
+    } res] $res
 } -cleanup {
     catch {file delete $tmpfile}
-} -result [list 1 errormsg]
+} -result [list 0 {}]
 test winFCmd-19.6 {Windows extended path names} -constraints nt -setup {
     set tmpfile [file join $::env(TEMP) tcl[string repeat x 248].tmp]
     set tmpfile //?/[file normalize $tmpfile]
@@ -1515,6 +1423,11 @@ test winFCmd-19.8 {Windows extended path names} -constraints nt -setup {
     catch {file delete $tmpfile}
 } -result [list 0 {} [list "tcl[pid].tmp "]]
 
+test winFCmd-19.9 {Windows devices path names} -constraints nt -body {
+    file normalize //./com1
+} -result //./com1
+
+
 # This block of code used to occur after the "return" call, so I'm
 # commenting it out and assuming that this code is still under construction.
 #foreach source {tef ted tnf tnd "" nul com1} {
diff --git a/tests/winFile.test b/tests/winFile.test
index fba9bcb..2c47f5f 100644
--- a/tests/winFile.test
+++ b/tests/winFile.test
@@ -37,24 +37,6 @@ test winFile-1.2 {TclpGetUserHome} -constraints {win nt nonPortable} -body {
     # The administrator account should always exist.
     glob ~administrator
 } -match glob -result *
-test winFile-1.3 {TclpGetUserHome} -constraints {win 95} -body {
-    # Find some user in system.ini and then see if they have a home.
-
-    set f [open $::env(windir)/system.ini]
-    while {[gets $f line] >= 0} {
-	if {$line ne {[Password Lists]}} {
-	    continue
-	}
-	gets $f
-	set name [lindex [split [gets $f] =] 0]
-	if {$name ne ""} {
-	    return [catch {glob ~$name}]
-	}
-    }
-    return 0 ;# didn't find anything...
-} -cleanup {
-    catch {close $f}
-} -result {0}
 test winFile-1.4 {TclpGetUserHome} {win nt nonPortable} {
     catch {glob ~stanton@workgroup}
 } {0}
diff --git a/tests/winPipe.test b/tests/winPipe.test
index d2e804d..9c6f94d 100644
--- a/tests/winPipe.test
+++ b/tests/winPipe.test
@@ -82,10 +82,6 @@ test winpipe-1.4 {32 bit comprehensive tests: a lot from pipe} {win nt exec cat3
     exec [interpreter] $path(more) < $path(big) | $cat32 > $path(stdout) 2> $path(stderr)
     list [contents $path(stdout)] [contents $path(stderr)]
 } "{$big} stderr32"
-test winpipe-1.5 {32 bit comprehensive tests: a lot from pipe} {win 95 exec cat32} {
-    exec command /c type $path(big) |& $cat32 > $path(stdout) 2> $path(stderr)
-    list [contents $path(stdout)] [contents $path(stderr)]
-} "{$big} stderr32"
 test winpipe-1.6 {32 bit comprehensive tests: from console} \
 	{win cat32 AllocConsole} {
     # would block waiting for human input
@@ -174,10 +170,6 @@ test winpipe-1.21 {32 bit comprehensive tests: read/write application} \
     catch {close $f}
     set r
 } "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
-test winpipe-1.22 {Checking command.com for Win95/98 hanging} {win 95 exec} {
-    exec command.com /c dir /b
-    set result 1
-} 1
 
 test winpipe-4.1 {Tcl_WaitPid} {win nt exec cat32} {
     proc readResults {f} {
diff --git a/tests/zlib.test b/tests/zlib.test
index 8212082..b1d43fb 100644
--- a/tests/zlib.test
+++ b/tests/zlib.test
@@ -10,12 +10,19 @@
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
+if {"::tcltest" ni [namespace children]} {
     package require tcltest 2.1
     namespace import -force ::tcltest::*
 }
 
 testConstraint zlib [llength [info commands zlib]]
+testConstraint recentZlib 0
+catch {
+    # Work around a bug in some versions of zlib; known to manifest on at
+    # least Mac OS X Mountain Lion...
+    testConstraint recentZlib \
+	    [package vsatisfies [zlib::pkgconfig get zlibVersion] 1.2.6]
+}
 
 test zlib-1.1 {zlib basics} -constraints zlib -returnCodes error -body {
     zlib
@@ -23,6 +30,12 @@ test zlib-1.1 {zlib basics} -constraints zlib -returnCodes error -body {
 test zlib-1.2 {zlib basics} -constraints zlib -returnCodes error -body {
     zlib ? {}
 } -result {bad command "?": must be adler32, compress, crc32, decompress, deflate, gunzip, gzip, inflate, push, or stream}
+test zlib-1.3 {zlib basics} -constraints zlib -body {
+    zlib::pkgconfig list
+} -result zlibVersion
+test zlib-1.4 {zlib basics} -constraints zlib -body {
+    package present zlib
+} -result 2.0.1
 
 test zlib-2.1 {zlib compress/decompress} zlib {
     zlib decompress [zlib compress abcdefghijklm]
@@ -70,7 +83,7 @@ test zlib-7.0 {zlib stream} -constraints zlib -returnCodes error -setup {
     $s ?
 } -cleanup {
     $s close
-} -result {bad option "?": must be add, checksum, close, eof, finalize, flush, fullflush, get, put, or reset}
+} -result {bad option "?": must be add, checksum, close, eof, finalize, flush, fullflush, get, header, put, or reset}
 test zlib-7.1 {zlib stream} zlib {
     set s [zlib stream compress]
     $s put -finalize abcdeEDCBA
@@ -202,7 +215,186 @@ test zlib-8.5 {transformation and flushing and fileevents: Bug 3525907} -setup {
     set ::res
 } -cleanup {
     catch {close $r}
-} -result {qwertyuiop MIDDLE asdfghjkl}
+} -result {qwertyuiop MIDDLE asdfghjkl {}}
+test zlib-8.6 {transformation and fconfigure} -setup {
+    set file [makeFile {} test.z]
+    set fd [open $file wb]
+} -constraints zlib -body {
+    list [fconfigure $fd] [zlib push compress $fd; fconfigure $fd] \
+	[chan pop $fd; fconfigure $fd]
+} -cleanup {
+    catch {close $fd}
+    removeFile $file
+} -result {{-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf} {-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf -checksum 1 -dictionary {}} {-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf}}
+test zlib-8.7 {transformation and fconfigure} -setup {
+    set file [makeFile {} test.gz]
+    set fd [open $file wb]
+} -constraints zlib -body {
+    list [fconfigure $fd] [zlib push gzip $fd; fconfigure $fd] \
+	[chan pop $fd; fconfigure $fd]
+} -cleanup {
+    catch {close $fd}
+    removeFile $file
+} -result {{-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf} {-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf -checksum 0} {-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf}}
+# Input is headers from fetching SPDY draft
+# Dictionary is that which is proposed _in_ SPDY draft
+set spdyHeaders "HTTP/1.0 200 OK\r\nContent-Type: text/html; charset=utf-8\r\nX-Robots-Tag: noarchive\r\nLast-Modified: Tue, 05 Jun 2012 02:43:25 GMT\r\nETag: \"1338864205129|#public|0|en|||0\"\r\nExpires: Tue, 05 Jun 2012 16:17:11 GMT\r\nDate: Tue, 05 Jun 2012 16:17:06 GMT\r\nCache-Control: public, max-age=5\r\nX-Content-Type-Options: nosniff\r\nX-XSS-Protection: 1; mode=block\r\nServer: GSE\r\n"
+set spdyDict "optionsgetheadpostputdeletetraceacceptaccept-charsetaccept-encodingaccept-languageauthorizationexpectfromhostif-modified-sinceif-matchif-none-matchif-rangeif-unmodifiedsincemax-forwardsproxy-authorizationrangerefererteuser-agent100101200201202203204205206300301302303304305306307400401402403404405406407408409410411412413414415416417500501502503504505accept-rangesageetaglocationproxy-authenticatepublicretry-afterservervarywarningwww-authenticateallowcontent-basecontent-encodingcache-controlconnectiondatetrailertransfer-encodingupgradeviawarningcontent-languagecontent-lengthcontent-locationcontent-md5content-rangecontent-typeetagexpireslast-modifiedset-cookieMondayTuesdayWednesdayThursdayFridaySaturdaySundayJanFebMarAprMayJunJulAugSepOctNovDecchunkedtext/htmlimage/pngimage/jpgimage/gifapplication/xmlapplication/xhtmltext/plainpublicmax-agecharset=iso-8859-1utf-8gzipdeflateHTTP/1.1statusversionurl"
+test zlib-8.8 {transformation and fconfigure} -setup {
+    lassign [chan pipe] inSide outSide
+} -constraints zlib -body {
+    zlib push compress $outSide -dictionary $spdyDict
+    fconfigure $outSide -blocking 0 -translation binary -buffering none
+    fconfigure $inSide -blocking 0 -translation binary
+    puts -nonewline $outSide $spdyHeaders
+    chan pop $outSide
+    set compressed [read $inSide]
+    catch {zlib decompress $compressed} err opt
+    list [string length [zlib compress $spdyHeaders]] \
+	[string length $compressed] \
+	$err [dict get $opt -errorcode] [zlib adler32 $spdyDict]
+} -cleanup {
+    catch {close $outSide}
+    catch {close $inSide}
+} -result {260 222 {need dictionary} {TCL ZLIB NEED_DICT 2381337010} 2381337010}
+test zlib-8.9 {transformation and fconfigure} -setup {
+    lassign [chan pipe] inSide outSide
+    set strm [zlib stream decompress]
+} -constraints zlib -body {
+    zlib push compress $outSide -dictionary $spdyDict
+    fconfigure $outSide -blocking 0 -translation binary -buffering none
+    fconfigure $inSide -blocking 0 -translation binary
+    puts -nonewline $outSide $spdyHeaders
+    set result [fconfigure $outSide -checksum]
+    chan pop $outSide
+    $strm put -dictionary $spdyDict [read $inSide]
+    lappend result [string length $spdyHeaders] [string length [$strm get]]
+} -cleanup {
+    catch {close $outSide}
+    catch {close $inSide}
+    catch {$strm close}
+} -result {3064818174 358 358}
+test zlib-8.10 {transformation and fconfigure} -setup {
+    lassign [chan pipe] inSide outSide
+} -constraints {zlib recentZlib} -body {
+    zlib push deflate $outSide -dictionary $spdyDict
+    fconfigure $outSide -blocking 0 -translation binary -buffering none
+    fconfigure $inSide -blocking 0 -translation binary
+    puts -nonewline $outSide $spdyHeaders
+    chan pop $outSide
+    set compressed [read $inSide]
+    catch {
+	zlib inflate $compressed
+	throw UNREACHABLE "should be unreachable"
+    } err opt
+    list [string length [zlib deflate $spdyHeaders]] \
+	[string length $compressed] \
+	$err [dict get $opt -errorcode]
+} -cleanup {
+    catch {close $outSide}
+    catch {close $inSide}
+} -result {254 212 {data error} {TCL ZLIB DATA}}
+test zlib-8.11 {transformation and fconfigure} -setup {
+    lassign [chan pipe] inSide outSide
+    set strm [zlib stream inflate]
+} -constraints zlib -body {
+    zlib push deflate $outSide -dictionary $spdyDict
+    fconfigure $outSide -blocking 0 -translation binary -buffering none
+    fconfigure $inSide -blocking 0 -translation binary
+    puts -nonewline $outSide $spdyHeaders
+    chan pop $outSide
+    $strm put -dictionary $spdyDict [read $inSide]
+    list [string length $spdyHeaders] [string length [$strm get]]
+} -cleanup {
+    catch {close $outSide}
+    catch {close $inSide}
+    catch {$strm close}
+} -result {358 358}
+test zlib-8.12 {transformation and fconfigure} -setup {
+    lassign [chan pipe] inSide outSide
+    set strm [zlib stream compress]
+} -constraints zlib -body {
+    $strm put -dictionary $spdyDict -finalize $spdyHeaders
+    zlib push decompress $inSide
+    fconfigure $outSide -blocking 0 -translation binary
+    fconfigure $inSide -translation binary -dictionary $spdyDict
+    puts -nonewline $outSide [$strm get]
+    close $outSide
+    list [string length $spdyHeaders] [string length [read $inSide]] \
+	[fconfigure $inSide -checksum]
+} -cleanup {
+    catch {close $outSide}
+    catch {close $inSide}
+    catch {$strm close}
+} -result {358 358 3064818174}
+test zlib-8.13 {transformation and fconfigure} -setup {
+    lassign [chan pipe] inSide outSide
+    set strm [zlib stream compress]
+} -constraints zlib -body {
+    $strm put -dictionary $spdyDict -finalize $spdyHeaders
+    zlib push decompress $inSide -dictionary $spdyDict
+    fconfigure $outSide -blocking 0 -translation binary
+    fconfigure $inSide -translation binary
+    puts -nonewline $outSide [$strm get]
+    close $outSide
+    list [string length $spdyHeaders] [string length [read $inSide]] \
+	[fconfigure $inSide -checksum]
+} -cleanup {
+    catch {close $outSide}
+    catch {close $inSide}
+    catch {$strm close}
+} -result {358 358 3064818174}
+test zlib-8.14 {transformation and fconfigure} -setup {
+    lassign [chan pipe] inSide outSide
+    set strm [zlib stream deflate]
+} -constraints zlib -body {
+    $strm put -finalize -dictionary $spdyDict $spdyHeaders
+    zlib push inflate $inSide
+    fconfigure $outSide -blocking 0 -buffering none -translation binary
+    fconfigure $inSide -translation binary -dictionary $spdyDict
+    puts -nonewline $outSide [$strm get]
+    close $outSide
+    list [string length $spdyHeaders] [string length [read $inSide]]
+} -cleanup {
+    catch {close $outSide}
+    catch {close $inSide}
+    catch {$strm close}
+} -result {358 358}
+test zlib-8.15 {transformation and fconfigure} -setup {
+    lassign [chan pipe] inSide outSide
+    set strm [zlib stream deflate]
+} -constraints zlib -body {
+    $strm put -finalize -dictionary $spdyDict $spdyHeaders
+    zlib push inflate $inSide -dictionary $spdyDict
+    fconfigure $outSide -blocking 0 -buffering none -translation binary
+    fconfigure $inSide -translation binary
+    puts -nonewline $outSide [$strm get]
+    close $outSide
+    list [string length $spdyHeaders] [string length [read $inSide]]
+} -cleanup {
+    catch {close $outSide}
+    catch {close $inSide}
+    catch {$strm close}
+} -result {358 358}
+test zlib-8.16 {Bug 3603553: buffer transfer with large writes} -setup {
+    # Actual data isn't very important; needs to be substantially larger than
+    # the internal buffer (32kB) and incompressible.
+    set largeData {}
+    for {set i 0;expr srand(1)} {$i < 100000} {incr i} {
+	append largeData [lindex "a b c d e f g h i j k l m n o p" \
+		[expr {int(16*rand())}]]
+    }
+    set file [makeFile {} test.gz]
+} -constraints zlib -body {
+    set f [open $file wb]
+    fconfigure $f -buffering none
+    zlib push gzip $f
+    puts -nonewline $f $largeData
+    close $f
+    file size $file
+} -cleanup {
+    removeFile $file
+} -result 57647
 
 test zlib-9.1 "check fcopy with push" -constraints zlib -setup {
     set sfile [makeFile {} testsrc.gz]
@@ -663,6 +855,20 @@ test zlib-11.2 "Bug #3390073: mis-appled gzip filtering" -setup {
 } -cleanup {
     removeFile $file
 } -result {1000 /foo/bar 0}
+test zlib-11.3 {Bug 3595576 variant} -setup {
+    set file [makeFile {} test.input]
+} -constraints zlib -body {
+    set f [open $file wb]
+    puts -nonewline [zlib push gzip $f -header {filename /foo/bar}] \
+	[string repeat "hello" 1000]
+    close $f
+    set f [open $file rb]
+    set d [read $f]
+    close $f
+    zlib gunzip $d -header noSuchNs::foo
+} -cleanup {
+    removeFile $file
+} -returnCodes error -result {can't set "noSuchNs::foo": parent namespace doesn't exist}
 
 ::tcltest::cleanupTests
 return
diff --git a/tools/README b/tools/README
index 821b2b3..f4bf627 100644
--- a/tools/README
+++ b/tools/README
@@ -23,6 +23,3 @@ Generating Windows Help Files:
     this converts the Nroff to RTF files.
 2) On Windows, convert the RTF to a Help doc, do
 	nmake helpfile
-
-Generating Windows binary distribution.
-Update and compile the WYSE tcl.wse configuration.
diff --git a/tools/genStubs.tcl b/tools/genStubs.tcl
index dea63e6..7a75dc6 100644
--- a/tools/genStubs.tcl
+++ b/tools/genStubs.tcl
@@ -283,7 +283,7 @@ proc genStubs::addPlatformGuard {plat iftxt {eltxt {}} {withCygwin 0}} {
     set text ""
     switch $plat {
 	win {
-	    append text "#if defined(__WIN32__)"
+	    append text "#if defined(_WIN32)"
 	    if {$withCygwin} {
 		append text " || defined(__CYGWIN__)"
 	    }
@@ -294,7 +294,7 @@ proc genStubs::addPlatformGuard {plat iftxt {eltxt {}} {withCygwin 0}} {
 	    append text "#endif /* WIN */\n"
 	}
 	unix {
-	    append text "#if !defined(__WIN32__)"
+	    append text "#if !defined(_WIN32)"
 	    if {$withCygwin} {
 		append text " && !defined(__CYGWIN__)"
 	    }
@@ -320,7 +320,7 @@ proc genStubs::addPlatformGuard {plat iftxt {eltxt {}} {withCygwin 0}} {
 	    append text "#endif /* AQUA */\n"
 	}
 	x11 {
-	    append text "#if !(defined(__WIN32__)"
+	    append text "#if !(defined(_WIN32)"
 	    if {$withCygwin} {
 		append text " || defined(__CYGWIN__)"
 	    }
@@ -828,7 +828,7 @@ proc genStubs::forAllStubs {name slotProc onAll textVar
 	    append text [addPlatformGuard $plat $temp {} true]
 	}
 	## macosx ##
-	if {$block(macosx) && !$block(aqua) && !$block(x11)} {
+	if {($block(unix) || $block(macosx)) && !$block(aqua) && !$block(x11)} {
 	    set temp {}
 	    set lastNum -1
 	    foreach plat {unix macosx} {
@@ -983,10 +983,12 @@ proc genStubs::emitHeader {name} {
 	append text "#define ${CAPName}_STUBS_REVISION $revision\n"
     }
 
+    append text "\n#ifdef __cplusplus\nextern \"C\" {\n#endif\n"
+
     emitDeclarations $name text
 
     if {[info exists hooks($name)]} {
-	append text "\ntypedef struct ${capName}StubHooks {\n"
+	append text "\ntypedef struct {\n"
 	foreach hook $hooks($name) {
 	    set capHook [string toupper [string index $hook 0]]
 	    append capHook [string range $hook 1 end]
@@ -1000,14 +1002,17 @@ proc genStubs::emitHeader {name} {
 	append text "    int epoch;\n"
 	append text "    int revision;\n"
     }
-    append text "    const struct ${capName}StubHooks *hooks;\n\n"
+    if {[info exists hooks($name)]} {
+	append text "    const ${capName}StubHooks *hooks;\n\n"
+    } else {
+	append text "    void *hooks;\n\n"
+    }
 
     emitSlots $name text
 
     append text "} ${capName}Stubs;\n\n"
 
-    append text "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"
-    append text "extern const ${capName}Stubs *${name}StubsPtr;\n"
+    append text "extern const ${capName}Stubs *${name}StubsPtr;\n\n"
     append text "#ifdef __cplusplus\n}\n#endif\n"
 
     emitMacros $name text
diff --git a/tools/man2help2.tcl b/tools/man2help2.tcl
index fe4e7ad..9c8f503 100644
--- a/tools/man2help2.tcl
+++ b/tools/man2help2.tcl
@@ -717,7 +717,7 @@ proc char {name} {
 	    textSetup
 	    puts -nonewline $file "\\'d7 "
 	}
-	{\(em} {
+	{\(em} - {\(en} {
 	    textSetup
 	    puts -nonewline $file "-"
 	}
diff --git a/tools/str2c b/tools/str2c
index 971e552..cff7ba2 100644
--- a/tools/str2c
+++ b/tools/str2c
@@ -36,7 +36,7 @@ static char data\[\]=\"[translate $r]\";"
     puts "/*
  * Multi parts read only string generated by str2c
  */
-static CONST char * CONST data\[\]= {"
+static const char * const data\[\]= {"
     set n 1
     for {set i 0} {$i<$lg} {incr i $MAX} {
 	set part [string range $r $i [expr $i+$MAX-1]]
@@ -48,7 +48,7 @@ static CONST char * CONST data\[\]= {"
     }
     puts "\tNULL\t/* End of data marker */\n};"
     puts "\n/* use for instance with:
-    CONST char * CONST *chunk;
+    const char * const *chunk;
     for (chunk=data; *chunk; chunk++) {
         Tcl_AppendResult(interp, *chunk, (char *) NULL);
     }
diff --git a/tools/tcl.wse.in b/tools/tcl.wse.in
deleted file mode 100644
index 77beb41..0000000
--- a/tools/tcl.wse.in
+++ /dev/null
@@ -1,2376 +0,0 @@
-Document Type: WSE
-item: Global
-  Version=6.01
-  Title=Tcl 8.6 for Windows Installation
-  Flags=00010100
-  Languages=65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
-  Japanese Font Name=MS Gothic
-  Japanese Font Size=10
-  Start Gradient=0 0 255
-  End Gradient=0 0 0
-  Windows Flags=00000000000000010010110000001000
-  Log Pathname=%MAINDIR%\INSTALL.LOG
-  Message Font=MS Sans Serif
-  Font Size=8
-  Disk Label=tcl8.6b3
-  Disk Filename=setup
-  Patch Flags=0000000000000001
-  Patch Threshold=85
-  Patch Memory=4000
-  Variable Name1=_SYS_
-  Variable Default1=C:\WINDOWS\SYSTEM
-  Variable Flags1=00001000
-  Variable Name2=_ODBC16_
-  Variable Default2=C:\WINDOWS\SYSTEM
-  Variable Flags2=00001000
-  Variable Name3=_WISE_
-  Variable Default3=${__WISE__}
-  Variable Flags3=00001000
-end
-item: Open/Close INSTALL.LOG
-  Flags=00000001
-end
-item: Check if File/Dir Exists
-  Pathname=%SYS%
-  Flags=10000100
-end
-item: Set Variable
-  Variable=SYS
-  Value=%WIN%
-end
-item: End Block
-end
-item: Set Variable
-  Variable=VER
-  Value=8.6
-end
-item: Set Variable
-  Variable=PATCHLEVEL
-  Value=${__TCL_PATCH_LEVEL__}
-end
-item: Set Variable
-  Variable=APPTITLE
-  Value=Tcl/Tk %PATCHLEVEL% for Windows
-end
-item: Set Variable
-  Variable=URL
-  Value=http://www.tcl.tk/
-end
-item: Set Variable
-  Variable=GROUP
-  Value=Tcl
-end
-item: Set Variable
-  Variable=DISABLED
-  Value=!
-end
-item: Set Variable
-  Variable=MAINDIR
-  Value=Tcl
-end
-item: Check Configuration
-  Flags=10111011
-end
-item: Get Registry Key Value
-  Variable=PROGRAM_FILES
-  Key=SOFTWARE\Microsoft\Windows\CurrentVersion
-  Default=C:\Program Files
-  Value Name=ProgramFilesDir
-  Flags=00000100
-end
-item: Set Variable
-  Variable=MAINDIR
-  Value=%PROGRAM_FILES%\%MAINDIR%
-end
-item: Set Variable
-  Variable=EXPLORER
-  Value=1
-end
-item: Else Statement
-end
-item: Set Variable
-  Variable=MAINDIR
-  Value=C:\%MAINDIR%
-end
-item: End Block
-end
-item: Set Variable
-  Variable=BACKUP
-  Value=%MAINDIR%\BACKUP
-end
-item: Set Variable
-  Variable=DOBACKUP
-  Value=B
-end
-item: Set Variable
-  Variable=BRANDING
-  Value=0
-end
-remarked item: If/While Statement
-  Variable=BRANDING
-  Value=1
-end
-remarked item: Read INI Value
-  Variable=NAME
-  Pathname=%INST%\CUSTDATA.INI
-  Section=Registration
-  Item=Name
-end
-remarked item: Read INI Value
-  Variable=COMPANY
-  Pathname=%INST%\CUSTDATA.INI
-  Section=Registration
-  Item=Company
-end
-remarked item: If/While Statement
-  Variable=NAME
-end
-remarked item: Set Variable
-  Variable=DOBRAND
-  Value=1
-end
-remarked item: End Block
-end
-remarked item: End Block
-end
-item: Set Variable
-  Variable=TYPE
-  Value=C
-end
-item: Set Variable
-  Variable=COMPONENTS
-  Value=ABC
-end
-item: Wizard Block
-  Direction Variable=DIRECTION
-  Display Variable=DISPLAY
-  X Position=0
-  Y Position=0
-  Filler Color=8421440
-  Flags=00000001
-end
-item: Custom Dialog Set
-  Name=Splash
-  Display Variable=DISPLAY
-  item: Dialog
-    Title=%APPTITLE% Installation
-    Title French=Bienvenue
-    Title German=Willkommen
-    Title Portuguese=Bem-vindo 
-    Title Spanish=Bienvenido
-    Title Italian=Benvenuto
-    Title Danish=Velkommen
-    Title Dutch=Welkom
-    Title Norwegian=Velkommen
-    Title Swedish=Välkommen
-    Width=273
-    Height=250
-    Font Name=Helv
-    Font Size=8
-    item: Push Button
-      Rectangle=166 214 208 228
-      Variable=DIRECTION
-      Value=N
-      Create Flags=01010000000000010000000000000001
-      Text=&Next >
-    end
-    item: Push Button
-      Rectangle=212 214 254 228
-      Action=3
-      Create Flags=01010000000000010000000000000000
-      Text=Cancel
-    end
-    item: Static
-      Rectangle=0 0 268 233
-      Action=2
-      Enabled Color=00000000000000001111111111111111
-      Create Flags=01010000000000000000000000001011
-      Pathname=${__TCLBASEDIR__}\tools\white.bmp
-    end
-    item: Static
-      Rectangle=5 5 268 215
-      Destination Dialog=1
-      Action=2
-      Enabled Color=00000000000000001111111111111111
-      Create Flags=01010000000000000000000000001011
-      Pathname=${__TCLBASEDIR__}\tools\tclSplash.bmp
-    end
-  end
-end
-item: End Block
-end
-item: Wizard Block
-  Direction Variable=DIRECTION
-  Display Variable=DISPLAY
-  Bitmap Pathname=%_WISE_%\DIALOGS\TEMPLATE\WIZARD.BMP
-  X Position=9
-  Y Position=10
-  Filler Color=8421440
-  Dialog=Welcome
-  Dialog=Select Destination Directory
-  Dialog=Select Installation Type
-  Dialog=Select Components
-  Dialog=Select Program Manager Group
-  Variable=
-  Variable=
-  Variable=
-  Variable=TYPE
-  Variable=EXPLORER
-  Value=
-  Value=
-  Value=
-  Value=C
-  Value=1
-  Compare=0
-  Compare=0
-  Compare=0
-  Compare=1
-  Compare=0
-  Flags=00000011
-end
-item: Custom Dialog Set
-  Name=Welcome
-  Display Variable=DISPLAY
-  item: Dialog
-    Title=%APPTITLE% Installation
-    Title French=Installation de %APPTITLE%
-    Title German=Installation von %APPTITLE%
-    Title Spanish=Instalación de %APPTITLE%
-    Title Italian=Installazione di %APPTITLE%
-    Width=271
-    Height=224
-    Font Name=Helv
-    Font Size=8
-    item: Static
-      Rectangle=86 8 258 42
-      Create Flags=01010000000000000000000000000000
-      Flags=0000000000000001
-      Name=Times New Roman
-      Font Style=-24 0 0 0 700 255 0 0 0 3 2 1 18
-      Text=Welcome!
-      Text French=Bienvenue !
-      Text German=Willkommen!
-      Text Spanish=¡Bienvenido!
-      Text Italian=Benvenuti!
-    end
-    item: Push Button
-      Rectangle=150 187 195 202
-      Variable=DIRECTION
-      Value=N
-      Create Flags=01010000000000010000000000000001
-      Text=&Next >
-      Text French=&Suite >
-      Text German=&Weiter >
-      Text Spanish=&Siguiente >
-      Text Italian=&Avanti >
-    end
-    item: Push Button
-      Rectangle=105 187 150 202
-      Variable=DISABLED
-      Value=!
-      Create Flags=01010000000000010000000000000000
-      Text=< &Back
-      Text French=< &Retour
-      Text German=< &Zurück
-      Text Spanish=< &Atrás
-      Text Italian=< &Indietro
-    end
-    item: Push Button
-      Rectangle=211 187 256 202
-      Action=3
-      Create Flags=01010000000000010000000000000000
-      Text=&Cancel
-      Text French=&Annuler
-      Text German=&Abbrechen
-      Text Spanish=&Cancelar
-      Text Italian=&Annulla
-    end
-    item: Static
-      Rectangle=85 41 255 130
-      Create Flags=01010000000000000000000000000000
-      Text=This installation program will install %APPTITLE%.
-      Text=
-      Text=Press the Next button to start the installation. You can press the Exit Setup button now if you do not want to install %APPTITLE% at this time. 
-      Text=
-      Text=It is strongly recommended that you exit all Windows programs before running this installation program.
-      Text French=Ce programme d'installation va installer %APPTITLE%.
-      Text French=
-      Text French=Cliquez sur le bouton Suite pour démarrer l'installation. Vous pouvez cliquer sur le bouton Quitter l'installation si vous ne voulez pas installer %APPTITLE% tout de suite.
-      Text German=Mit diesem Installationsprogramm wird %APPTITLE% installiert.
-      Text German=
-      Text German=Klicken Sie auf "Weiter", um mit der Installation zu beginnen. Klicken Sie auf "Abbrechen", um die Installation von %APPTITLE% abzubrechen.
-      Text Spanish=Este programa de instalación instalará %APPTITLE%.
-      Text Spanish=
-      Text Spanish=Presione el botón Siguiente para iniciar la instalación. Puede presionar el botón Salir de instalación si no desea instalar %APPTITLE% en este momento.
-      Text Italian=Questo programma installerà %APPTITLE%.
-      Text Italian=
-      Text Italian=Per avvviare l'installazione premere il pulsante Avanti. Se non si desidera installare %APPTITLE% ora, premere il pulsante Esci dall'installazione.
-    end
-    item: Static
-      Rectangle=8 180 256 181
-      Action=3
-      Create Flags=01010000000000000000000000000111
-    end
-  end
-end
-item: Custom Dialog Set
-  Name=Select Destination Directory
-  Display Variable=DISPLAY
-  item: Dialog
-    Title=%APPTITLE% Installation
-    Title French=Installation de %APPTITLE%
-    Title German=Installation von %APPTITLE%
-    Title Spanish=Instalación de %APPTITLE%
-    Title Italian=Installazione di %APPTITLE%
-    Width=271
-    Height=224
-    Font Name=Helv
-    Font Size=8
-    item: Push Button
-      Rectangle=150 187 195 202
-      Variable=DIRECTION
-      Value=N
-      Create Flags=01010000000000010000000000000001
-      Text=&Next >
-      Text French=&Suite >
-      Text German=&Weiter >
-      Text Spanish=&Siguiente >
-      Text Italian=&Avanti >
-    end
-    item: Push Button
-      Rectangle=105 187 150 202
-      Variable=DIRECTION
-      Value=B
-      Create Flags=01010000000000010000000000000000
-      Flags=0000000000000001
-      Text=< &Back
-      Text French=< &Retour
-      Text German=< &Zurück
-      Text Spanish=< &Atrás
-      Text Italian=< &Indietro
-    end
-    item: Push Button
-      Rectangle=211 187 256 202
-      Action=3
-      Create Flags=01010000000000010000000000000000
-      Text=&Cancel
-      Text French=&Annuler
-      Text German=&Abbrechen
-      Text Spanish=&Cancelar
-      Text Italian=&Annulla
-    end
-    item: Static
-      Rectangle=8 180 256 181
-      Action=3
-      Create Flags=01010000000000000000000000000111
-    end
-    item: Static
-      Rectangle=86 8 258 42
-      Create Flags=01010000000000000000000000000000
-      Flags=0000000000000001
-      Name=Times New Roman
-      Font Style=-24 0 0 0 700 255 0 0 0 3 2 1 18
-      Text=Select Destination Directory
-      Text French=Sélectionner le répertoire de destination
-      Text German=Zielverzeichnis wählen
-      Text Spanish=Seleccione el directorio de destino
-      Text Italian=Selezionare Directory di destinazione
-    end
-    item: Static
-      Rectangle=86 39 256 114
-      Create Flags=01010000000000000000000000000000
-      Text=Please select the directory where the %APPTITLE% files are to be installed.
-      Text=
-      Text=To install in the default directory below, click Next.
-      Text=
-      Text=To install in a different directory, click Browse and select another directory.
-      Text French=Veuillez sélectionner le répertoire dans lequel les fichiers %APPTITLE% doivent être installés.
-      Text German=Geben Sie an, in welchem Verzeichnis die %APPTITLE%-Dateien installiert werden sollen.
-      Text Spanish=Por favor seleccione el directorio donde desee instalar los archivos de %APPTITLE%.
-      Text Italian=Selezionare la directory dove verranno installati i file %APPTITLE%.
-    end
-    item: Static
-      Rectangle=86 130 256 157
-      Action=1
-      Create Flags=01010000000000000000000000000111
-    end
-    item: Push Button
-      Rectangle=205 138 250 153
-      Variable=MAINDIR_SAVE
-      Value=%MAINDIR%
-      Destination Dialog=1
-      Action=2
-      Create Flags=01010000000000010000000000000000
-      Text=Browse
-      Text French=Parcourir
-      Text German=Durchsuchen
-      Text Spanish=Buscar
-      Text Italian=Sfoglie
-    end
-    item: Static
-      Rectangle=91 140 198 151
-      Create Flags=01010000000000000000000000000000
-      Text=%MAINDIR%
-      Text French=%MAINDIR%
-      Text German=%MAINDIR%
-      Text Spanish=%MAINDIR%
-      Text Italian=%MAINDIR%
-    end
-  end
-  item: Dialog
-    Title=Select Destination Directory
-    Title French=Sélectionner le répertoire de destination
-    Title German=Zielverzeichnis wählen
-    Title Spanish=Seleccione el directorio de destino
-    Title Italian=Selezionare Directory di destinazione
-    Width=221
-    Height=173
-    Font Name=Helv
-    Font Size=8
-    item: Listbox
-      Rectangle=5 5 163 149
-      Variable=MAINDIR
-      Create Flags=01010000100000010000000101000000
-      Flags=0000110000100010
-      Text=%MAINDIR%
-      Text French=%MAINDIR%
-      Text German=%MAINDIR%
-      Text Spanish=%MAINDIR%
-      Text Italian=%MAINDIR%
-    end
-    item: Push Button
-      Rectangle=167 6 212 21
-      Create Flags=01010000000000010000000000000001
-      Text=OK
-      Text French=OK
-      Text German=OK
-      Text Spanish=Aceptar
-      Text Italian=OK
-    end
-    item: Push Button
-      Rectangle=167 25 212 40
-      Variable=MAINDIR
-      Value=%MAINDIR_SAVE%
-      Create Flags=01010000000000010000000000000000
-      Flags=0000000000000001
-      Text=Cancel
-      Text French=Annuler
-      Text German=Abbrechen
-      Text Spanish=Cancelar
-      Text Italian=Annulla
-    end
-  end
-end
-remarked item: Custom Dialog Set
-  Name=Select Installation Type
-  Display Variable=DISPLAY
-  item: Dialog
-    Title=%APPTITLE% Installation
-    Title French=Installation de %APPTITLE%
-    Title German=Installation von %APPTITLE%
-    Title Spanish=Instalación de %APPTITLE%
-    Title Italian=Installazione di %APPTITLE%
-    Width=271
-    Height=224
-    Font Name=Helv
-    Font Size=8
-    item: Push Button
-      Rectangle=150 187 195 202
-      Variable=DIRECTION
-      Value=N
-      Create Flags=01010000000000010000000000000001
-      Text=&Next >
-      Text French=&Suite >
-      Text German=&Weiter >
-      Text Spanish=&Siguiente >
-      Text Italian=&Avanti >
-    end
-    item: Push Button
-      Rectangle=105 187 150 202
-      Variable=DIRECTION
-      Value=B
-      Create Flags=01010000000000010000000000000000
-      Text=< &Back
-      Text French=< &Retour
-      Text German=< &Zurück
-      Text Spanish=< &Atrás
-      Text Italian=< &Indietro
-    end
-    item: Push Button
-      Rectangle=211 187 256 202
-      Action=3
-      Create Flags=01010000000000010000000000000000
-      Text=&Cancel
-      Text French=&Annuler
-      Text German=&Abbrechen
-      Text Spanish=&Cancelar
-      Text Italian=&Annulla
-    end
-    item: Static
-      Rectangle=8 180 256 181
-      Action=3
-      Create Flags=01010000000000000000000000000111
-    end
-    item: Static
-      Rectangle=86 8 258 42
-      Create Flags=01010000000000000000000000000000
-      Flags=0000000000000001
-      Name=Times New Roman
-      Font Style=-24 0 0 0 700 255 0 0 0 3 2 1 18
-      Text=Select Installation Type
-      Text French=Sélectionner les composants
-      Text German=Komponenten auswählen
-      Text Spanish=Seleccione componentes
-      Text Italian=Selezionare i componenti
-    end
-    item: Static
-      Rectangle=194 162 242 172
-      Variable=COMPONENTS
-      Value=MAINDIR
-      Create Flags=01010000000000000000000000000010
-    end
-    item: Static
-      Rectangle=194 153 242 162
-      Variable=COMPONENTS
-      Create Flags=01010000000000000000000000000010
-    end
-    item: Static
-      Rectangle=107 153 196 164
-      Create Flags=01010000000000000000000000000000
-      Text=Disk Space Required:
-      Text French=Espace disque requis :
-      Text German=Notwendiger Speicherplatz:
-      Text Spanish=Espacio requerido en el disco:
-      Text Italian=Spazio su disco necessario:
-    end
-    item: Static
-      Rectangle=107 162 196 172
-      Create Flags=01010000000000000000000000000000
-      Text=Disk Space Remaining:
-      Text French=Espace disque disponible :
-      Text German=Verbleibender Speicherplatz:
-      Text Spanish=Espacio en disco disponible:
-      Text Italian=Spazio su disco disponibile:
-    end
-    item: Static
-      Rectangle=86 145 256 175
-      Action=1
-      Create Flags=01010000000000000000000000000111
-    end
-    item: Static
-      Rectangle=86 42 256 61
-      Create Flags=01010000000000000000000000000000
-      Text=Choose which type of installation to perform by selecting one of the buttons below.
-      Text French=Choisissez les composants que vous voulez installer en cochant les cases ci-dessous.
-      Text German=Wählen Sie die zu installierenden Komponenten, indem Sie in die entsprechenden Kästchen klicken.
-      Text Spanish=Elija los componentes que desee instalar marcando los cuadros de abajo.
-      Text Italian=Scegliere quali componenti installare selezionando le caselle sottostanti.
-    end
-    item: Radio Button
-      Rectangle=86 74 256 128
-      Variable=TYPE
-      Create Flags=01010000000000010000000000001001
-      Text=&Full Installation (Recommended)
-      Text=&Minimal Installation
-      Text=C&ustom Installation
-      Text=
-    end
-  end
-end
-item: Custom Dialog Set
-  Name=Select Components
-  Display Variable=DISPLAY
-  item: Dialog
-    Title=%APPTITLE% Installation
-    Title French=Installation de %APPTITLE%
-    Title German=Installation von %APPTITLE%
-    Title Spanish=Instalación de %APPTITLE%
-    Title Italian=Installazione di %APPTITLE%
-    Width=271
-    Height=224
-    Font Name=Helv
-    Font Size=8
-    item: Push Button
-      Rectangle=150 187 195 202
-      Variable=DIRECTION
-      Value=N
-      Create Flags=01010000000000010000000000000001
-      Text=&Next >
-      Text French=&Suite >
-      Text German=&Weiter >
-      Text Spanish=&Siguiente >
-      Text Italian=&Avanti >
-    end
-    item: Push Button
-      Rectangle=105 187 150 202
-      Variable=DIRECTION
-      Value=B
-      Create Flags=01010000000000010000000000000000
-      Text=< &Back
-      Text French=< &Retour
-      Text German=< &Zurück
-      Text Spanish=< &Atrás
-      Text Italian=< &Indietro
-    end
-    item: Push Button
-      Rectangle=211 187 256 202
-      Action=3
-      Create Flags=01010000000000010000000000000000
-      Text=&Cancel
-      Text French=&Annuler
-      Text German=&Abbrechen
-      Text Spanish=&Cancelar
-      Text Italian=&Annulla
-    end
-    item: Static
-      Rectangle=8 180 256 181
-      Action=3
-      Create Flags=01010000000000000000000000000111
-    end
-    item: Static
-      Rectangle=86 8 258 42
-      Create Flags=01010000000000000000000000000000
-      Flags=0000000000000001
-      Name=Times New Roman
-      Font Style=-24 0 0 0 700 255 0 0 0 3 2 1 18
-      Text=Select Components
-      Text French=Sélectionner les composants
-      Text German=Komponenten auswählen
-      Text Spanish=Seleccione componentes
-      Text Italian=Selezionare i componenti
-    end
-    item: Checkbox
-      Rectangle=86 75 256 129
-      Variable=COMPONENTS
-      Create Flags=01010000000000010000000000000011
-      Flags=0000000000000110
-      Text=Tcl Run-Time Files
-      Text=Example Scripts
-      Text=Help Files
-      Text=Header and Library Files
-      Text=
-      Text French=Tcl Run-Time Files
-      Text French=Example Scripts
-      Text French=Help Files
-      Text French=Header and Library Files
-      Text French=
-      Text German=Tcl Run-Time Files
-      Text German=Example Scripts
-      Text German=Help Files
-      Text German=Header and Library Files
-      Text German=
-      Text Spanish=Tcl Run-Time Files
-      Text Spanish=Example Scripts
-      Text Spanish=Help Files
-      Text Spanish=Header and Library Files
-      Text Spanish=
-      Text Italian=Tcl Run-Time Files
-      Text Italian=Example Scripts
-      Text Italian=Help Files
-      Text Italian=Header and Library Files
-      Text Italian=
-    end
-    item: Static
-      Rectangle=194 162 242 172
-      Variable=COMPONENTS
-      Value=MAINDIR
-      Create Flags=01010000000000000000000000000010
-    end
-    item: Static
-      Rectangle=194 153 242 162
-      Variable=COMPONENTS
-      Create Flags=01010000000000000000000000000010
-    end
-    item: Static
-      Rectangle=107 153 196 164
-      Create Flags=01010000000000000000000000000000
-      Text=Disk Space Required:
-      Text French=Espace disque requis :
-      Text German=Notwendiger Speicherplatz:
-      Text Spanish=Espacio requerido en el disco:
-      Text Italian=Spazio su disco necessario:
-    end
-    item: Static
-      Rectangle=107 162 196 172
-      Create Flags=01010000000000000000000000000000
-      Text=Disk Space Remaining:
-      Text French=Espace disque disponible :
-      Text German=Verbleibender Speicherplatz:
-      Text Spanish=Espacio en disco disponible:
-      Text Italian=Spazio su disco disponibile:
-    end
-    item: Static
-      Rectangle=86 145 256 175
-      Action=1
-      Create Flags=01010000000000000000000000000111
-    end
-    item: Static
-      Rectangle=86 42 256 61
-      Create Flags=01010000000000000000000000000000
-      Text=Choose which components to install by checking the boxes below.
-      Text French=Choisissez les composants que vous voulez installer en cochant les cases ci-dessous.
-      Text German=Wählen Sie die zu installierenden Komponenten, indem Sie in die entsprechenden Kästchen klicken.
-      Text Spanish=Elija los componentes que desee instalar marcando los cuadros de abajo.
-      Text Italian=Scegliere quali componenti installare selezionando le caselle sottostanti.
-    end
-  end
-end
-item: Custom Dialog Set
-  Name=Select Program Manager Group
-  Display Variable=DISPLAY
-  item: Dialog
-    Title=%APPTITLE% Installation
-    Title French=Installation de %APPTITLE%
-    Title German=Installation von %APPTITLE%
-    Title Spanish=Instalación de %APPTITLE%
-    Title Italian=Installazione di %APPTITLE%
-    Width=271
-    Height=224
-    Font Name=Helv
-    Font Size=8
-    item: Push Button
-      Rectangle=150 187 195 202
-      Variable=DIRECTION
-      Value=N
-      Create Flags=01010000000000010000000000000001
-      Text=&Next >
-      Text French=&Suite >
-      Text German=&Weiter >
-      Text Spanish=&Siguiente >
-      Text Italian=&Avanti >
-    end
-    item: Push Button
-      Rectangle=105 187 150 202
-      Variable=DIRECTION
-      Value=B
-      Create Flags=01010000000000010000000000000000
-      Flags=0000000000000001
-      Text=< &Back
-      Text French=< &Retour
-      Text German=< &Zurück
-      Text Spanish=< &Atrás
-      Text Italian=< &Indietro
-    end
-    item: Push Button
-      Rectangle=211 187 256 202
-      Action=3
-      Create Flags=01010000000000010000000000000000
-      Text=&Cancel
-      Text French=&Annuler
-      Text German=&Abbrechen
-      Text Spanish=&Cancelar
-      Text Italian=&Annulla
-    end
-    item: Static
-      Rectangle=8 180 256 181
-      Action=3
-      Create Flags=01010000000000000000000000000111
-    end
-    item: Static
-      Rectangle=86 8 258 42
-      Create Flags=01010000000000000000000000000000
-      Flags=0000000000000001
-      Name=Times New Roman
-      Font Style=-24 0 0 0 700 255 0 0 0 3 2 1 18
-      Text=Select ProgMan Group
-      Text French=Sélectionner le groupe du Gestionnaire de programme 
-      Text German=Bestimmung der Programm-Managergruppe
-      Text Spanish=Seleccione grupo del Administrador de programas
-      Text Italian=Selezionare il gruppo ProgMan 
-    end
-    item: Static
-      Rectangle=86 44 256 68
-      Create Flags=01010000000000000000000000000000
-      Text=Enter the name of the Program Manager group to add the %APPTITLE% icons to:
-      Text French=Entrez le nom du groupe du Gestionnaire de programme dans lequel vous souhaitez ajouter les icônes de %APPTITLE% :
-      Text German=Geben Sie den Namen der Programmgruppe ein, der das Symbol %APPTITLE% hinzugefügt werden soll:
-      Text Spanish=Escriba el nombre del grupo del Administrador de programas en el que desea agregar los iconos de %APPTITLE%:
-      Text Italian=Inserire il nome del gruppo Program Manager per aggiungere le icone %APPTITLE% a:
-    end
-    item: Combobox
-      Rectangle=86 69 256 175
-      Variable=GROUP
-      Create Flags=01010000000000010000001000000001
-      Flags=0000000000000001
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-item: Custom Dialog Set
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-  Display Variable=DISPLAY
-  item: Dialog
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-    item: Push Button
-      Rectangle=105 187 150 202
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-    item: Static
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-    item: Static
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-    item: Static
-      Rectangle=86 42 256 102
-      Create Flags=01010000000000000000000000000000
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-      Text French=Vous êtes maintenant prêt à installer les fichiers %APPTITLE%.
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-      Text French=Cliquez sur le bouton Suite pour commencer l'installation ou sur le bouton Retour pour entrer les informations d'installation à nouveau.
-      Text German=Sie können %APPTITLE% nun installieren.
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-      Text Spanish=Ya está listo para instalar %APPTITLE%.
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-      Text Spanish=Presione el botón Siguiente para comenzar la instalación o presione Atrás para volver a ingresar la información para la instalación.
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-item: Set Variable
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-item: End Block
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-item: If/While Statement
-  Variable=TYPE
-  Value=B
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-item: Set Variable
-  Variable=COMPONENTS
-  Value=A
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-item: End Block
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-item: If/While Statement
-  Variable=DOBACKUP
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-item: Set Variable
-  Variable=BACKUPDIR
-  Value=%BACKUP%
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-  Variable=BRANDING
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-remarked item: If/While Statement
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-  Value=1
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-  Pathname=%INST%\CUSTDATA.INI
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-remarked item: End Block
-end
-remarked item: End Block
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-item: Set Variable
-  Variable=MAINDIRSHORT
-  Value=%MAINDIR%
-  Flags=00010100
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-item: Open/Close INSTALL.LOG
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-item: Check Disk Space
-  Component=COMPONENTS
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: If/While Statement
-  Variable=COMPONENTS
-  Value=D
-  Flags=00001010
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-item: Install File
-  Source=${__TKBASEDIR__}\win\release\tk85.lib
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\win\release\tkstub85.lib
-  Destination=%MAINDIR%\lib\tkstub85.lib
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\win\release\tcl85.lib
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\win\release\tclstub85.lib
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\xlib\X11\Xlib.h
-  Destination=%MAINDIR%\include\X11\Xlib.h
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\xlib\X11\Xfuncproto.h
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\xlib\X11\X.h
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\xlib\X11\keysymdef.h
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\xlib\X11\keysym.h
-  Destination=%MAINDIR%\include\X11\keysym.h
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\xlib\X11\cursorfont.h
-  Destination=%MAINDIR%\include\X11\cursorfont.h
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\generic\tk.h
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\generic\tkDecls.h
-  Destination=%MAINDIR%\include\tkDecls.h
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\generic\tkPlatDecls.h
-  Destination=%MAINDIR%\include\tkPlatDecls.h
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TKBASEDIR__}\generic\tkIntXlibDecls.h
-  Destination=%MAINDIR%\include\tkIntXlibDecls.h
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\generic\tcl.h
-  Destination=%MAINDIR%\include\tcl.h
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\generic\tclDecls.h
-  Destination=%MAINDIR%\include\tclDecls.h
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\generic\tclPlatDecls.h
-  Destination=%MAINDIR%\include\tclPlatDecls.h
-  Flags=0000000000000010
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-item: End Block
-end
-item: If/While Statement
-  Variable=COMPONENTS
-  Value=A
-  Flags=00001010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\msgcat\pkgIndex.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\msgcat1.4\pkgIndex.tcl
-  Flags=0000000010000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\msgcat\msgcat.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\msgcat1.4\msgcat.tcl
-  Flags=0000000010000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\tcltest\pkgIndex.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\tcltest2.0\pkgIndex.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\tcltest\tcltest.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\tcltest2.0\tcltest.tcl
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\symbol.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\symbol.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\shiftjis.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\shiftjis.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macUkraine.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macUkraine.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macTurkish.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macTurkish.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macThai.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macThai.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macRomania.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macRomania.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macRoman.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macRoman.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macJapan.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macJapan.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macIceland.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macIceland.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macGreek.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macGreek.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macDingbats.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macDingbats.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macCyrillic.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macCyrillic.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macCroatian.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macCroatian.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\macCentEuro.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\macCentEuro.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\ksc5601.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\ksc5601.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\koi8-r.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\koi8-r.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\jis0212.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\jis0212.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\jis0208.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\jis0208.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\jis0201.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\jis0201.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-15.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-15.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-9.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-9.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-8.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-8.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-7.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-7.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-6.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-6.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-5.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-5.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-4.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-4.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-3.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-3.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-2.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-2.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso8859-1.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso8859-1.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso2022.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso2022.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso2022-kr.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso2022-kr.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\iso2022-jp.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\iso2022-jp.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\gb2312.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\gb2312.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\gb1988.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\gb1988.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\gb12345.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\gb12345.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\euc-cn.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\euc-cn.enc
-  Flags=0000000010000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\euc-jp.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\euc-jp.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\euc-kr.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\euc-kr.enc
-  Flags=0000000010000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\dingbats.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\dingbats.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp950.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp950.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp949.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp949.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp936.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp936.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp932.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp932.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp874.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp874.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp869.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp869.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp866.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp866.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp865.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp865.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp864.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp864.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp863.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp863.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp862.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp862.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp861.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp861.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp860.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp860.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp857.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp857.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp855.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp855.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp852.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp852.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp850.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp850.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp775.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp775.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp737.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp737.enc
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp437.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp437.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp1258.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp1258.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp1257.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp1257.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp1256.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp1256.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp1255.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp1255.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp1254.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp1254.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp1253.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp1253.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp1252.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp1252.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp1251.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp1251.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\cp1250.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\cp1250.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\ascii.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\ascii.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\encoding\big5.enc
-  Destination=%MAINDIR%\lib\tcl%VER%\encoding\big5.enc
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\opt\pkgIndex.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\opt0.4\pkgIndex.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\opt\optparse.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\opt0.4\optparse.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TCLBASEDIR__}\library\http\pkgIndex.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\http2.4\pkgIndex.tcl
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
-  Source=${__TCLBASEDIR__}\win\release\tclsh85.exe
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-  Flags=0000000000000010
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-item: Install File
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-item: Install File
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-item: Install File
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-item: If/While Statement
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-  Flags=00001010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\images\tai-ku.gif
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\images\noletter.bmp
-  Destination=%MAINDIR%\lib\tk%VER%\demos\images\noletter.bmp
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\images\letters.bmp
-  Destination=%MAINDIR%\lib\tk%VER%\demos\images\letters.bmp
-  Flags=0000000000000010
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-item: Install File
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-  Destination=%MAINDIR%\lib\tk%VER%\demos\images\gray25.bmp
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\images\flagup.bmp
-  Destination=%MAINDIR%\lib\tk%VER%\demos\images\flagup.bmp
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\images\flagdown.bmp
-  Destination=%MAINDIR%\lib\tk%VER%\demos\images\flagdown.bmp
-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\images\earthris.gif
-  Destination=%MAINDIR%\lib\tk%VER%\demos\images\earthris.gif
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\images\earth.gif
-  Destination=%MAINDIR%\lib\tk%VER%\demos\images\earth.gif
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\vscale.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\demos\vscale.tcl
-  Flags=0000000000000010
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-item: Install File
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-  Destination=%MAINDIR%\lib\tk%VER%\demos\twind.tcl
-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\style.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\demos\style.tcl
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\states.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\demos\states.tcl
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-item: Install File
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-item: Install File
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-item: Install File
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-item: Install File
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\items.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\demos\items.tcl
-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\ixset
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\rolodex
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\square
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\Readme
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\tclIndex
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\browse
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\timer
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\widget
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\tcolor
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\rmt
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\floor.tcl
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-  Flags=0000000000000010
-end
-item: Install File
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-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TKBASEDIR__}\library\images\pwrdLogo75.gif
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
-end
-item: Install File
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-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TKBASEDIR__}\library\images\logoMed.gif
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\images\logoLarge.gif
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\images\logo64.gif
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-  Flags=0000000000000010
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-item: Install File
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\images\Readme
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\arrow.tcl
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\bind.tcl
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\bitmap.tcl
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\button.tcl
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\check.tcl
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\clrpick.tcl
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\colors.tcl
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\cscroll.tcl
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\ctext.tcl
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-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\dialog1.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\demos\dialog1.tcl
-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\dialog2.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\demos\dialog2.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\entry1.tcl
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TKBASEDIR__}\library\demos\entry2.tcl
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-  Flags=0000000000000010
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-item: End Block
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-item: If/While Statement
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-  Flags=00001010
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-item: Install File
-  Source=${__TCLBASEDIR__}\tools\tcl85.cnt
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-  Flags=0000000000000010
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-item: Install File
-  Source=${__TCLBASEDIR__}\tools\tcl85.hlp
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-item: End Block
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-item: Set Variable
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-  Flags=00010100
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-item: Include Script
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-item: Check Configuration
-  Flags=10111011
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-item: Get Registry Key Value
-  Variable=GROUPDIR
-  Key=Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
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-  Flags=00000010
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-item: Set Variable
-  Variable=GROUP
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-item: If/While Statement
-  Variable=COMPONENTS
-  Value=A
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-item: Create Shortcut
-  Source=%MAINDIR%\bin\wish85.exe
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-  Working Directory=%MAINDIR%
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-item: End Block
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-item: If/While Statement
-  Variable=COMPONENTS
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-end
-item: Create Shortcut
-  Source=%MAINDIR%\bin\tclsh85.exe
-  Destination=%GROUP%\Tclsh.lnk
-  Working Directory=%MAINDIR%
-  Key Type=1536
-  Flags=00000001
-end
-item: End Block
-end
-item: If/While Statement
-  Variable=COMPONENTS
-  Value=C
-  Flags=00001010
-end
-item: Create Shortcut
-  Source=%MAINDIR%\doc\tcl85.hlp
-  Destination=%GROUP%\Tcl Help.lnk
-  Working Directory=%MAINDIR%
-end
-item: End Block
-end
-item: Create Shortcut
-  Source=%MAINDIR%\Readme.txt
-  Destination=%GROUP%\Readme.lnk
-  Working Directory=%MAINDIR%
-end
-item: If/While Statement
-  Variable=COMPONENTS
-  Value=B
-  Flags=00001010
-end
-item: Create Shortcut
-  Source=%MAINDIR%\lib\tk%VER%\demos\widget.tcl
-  Destination=%GROUP%\Widget Tour.lnk
-  Working Directory=%MAINDIR%
-  Key Type=1536
-  Flags=00000001
-end
-item: End Block
-end
-item: Else Statement
-end
-item: If/While Statement
-  Variable=COMPONENTS
-  Value=B
-  Flags=00001010
-end
-item: Add ProgMan Icon
-  Group=%GROUP%
-  Icon Name=Widget Tour
-  Command Line=%MAINDIR%\lib\tk%VER%\demos\widget.tcl
-  Icon Pathname=%MAINDIR%\bin\wish85.exe
-  Default Directory=%MAINDIR%
-end
-item: End Block
-end
-item: If/While Statement
-  Variable=COMPONENTS
-  Value=C
-  Flags=00001010
-end
-item: Add ProgMan Icon
-  Group=%GROUP%
-  Icon Name=Tcl Help
-  Command Line=%MAINDIR%\doc\tcl85.hlp
-  Default Directory=%MAINDIR%
-end
-item: End Block
-end
-item: Add ProgMan Icon
-  Group=%GROUP%
-  Icon Name=Readme
-  Command Line=%MAINDIR%\Readme.txt
-  Default Directory=%MAINDIR%
-end
-item: If/While Statement
-  Variable=COMPONENTS
-  Value=A
-  Flags=00001010
-end
-item: Add ProgMan Icon
-  Group=%GROUP%
-  Icon Name=Wish
-  Command Line=%MAINDIR%\bin\wish85.exe
-  Default Directory=%MAINDIR%
-end
-item: End Block
-end
-item: If/While Statement
-  Variable=COMPONENTS
-  Value=A
-  Flags=00001010
-end
-item: Add ProgMan Icon
-  Group=%GROUP%
-  Icon Name=Tclsh
-  Command Line=%MAINDIR%\bin\tclsh85.exe
-  Default Directory=%MAINDIR%
-end
-item: End Block
-end
-item: End Block
-end
-item: Self-Register OCXs/DLLs
-  Description=Updating System Configuration, Please Wait...
-end
-item: Edit Registry
-  Total Keys=1
-  Key=SOFTWARE\Scriptics\Tcl\%VER%
-  New Value=%MAINDIR%
-  Value Name=Root
-  Root=2
-end
-item: Edit Registry
-  Total Keys=1
-  Key=TclScript\DefaultIcon
-  New Value=%MAINDIR%\bin\tk85.dll
-end
-item: Edit Registry
-  Total Keys=1
-  Key=.tcl
-  New Value=TclScript
-end
-item: Edit Registry
-  Total Keys=1
-  Key=TclScript
-  New Value=TclScript
-end
-item: Edit Registry
-  Total Keys=1
-  Key=TclScript\shell\open\command
-  New Value=%MAINDIRSHORT%\bin\wish85.exe "%%1" %%*
-end
-item: Edit Registry
-  Total Keys=1
-  Key=TclScript\shell\edit
-  New Value=&Edit
-end
-item: Edit Registry
-  Total Keys=1
-  Key=TclScript\shell\edit\command
-  New Value=notepad "%%1"
-end
-item: Add Directory to Path
-  Directory=%MAINDIR%\bin
-end
-item: Check Configuration
-  Flags=10111011
-end
-item: Set Variable
-  Variable=TO_SCRIPTICS
-  Value=A
-end
-item: Else Statement
-end
-item: Set Variable
-  Variable=TO_SCRIPTICS
-end
-item: End Block
-end
-item: Wizard Block
-  Direction Variable=DIRECTION
-  Display Variable=DISPLAY
-  Bitmap Pathname=%_WISE_%\DIALOGS\TEMPLATE\WIZARD.BMP
-  X Position=9
-  Y Position=10
-  Filler Color=8421440
-  Flags=00000011
-end
-item: Custom Dialog Set
-  Name=Finished
-  Display Variable=DISPLAY
-  item: Dialog
-    Title=%APPTITLE% Installation
-    Title French=Installation de %APPTITLE%
-    Title German=Installation von %APPTITLE%
-    Title Spanish=Instalación de %APPTITLE%
-    Title Italian=Installazione di %APPTITLE%
-    Width=271
-    Height=224
-    Font Name=Helv
-    Font Size=8
-    item: Push Button
-      Rectangle=150 187 195 202
-      Variable=DIRECTION
-      Value=N
-      Create Flags=01010000000000010000000000000001
-      Text=&Finish
-      Text French=&Fin
-      Text German=&Weiter
-      Text Spanish=&Terminar
-      Text Italian=&Fine
-    end
-    item: Push Button
-      Rectangle=105 187 150 202
-      Variable=DISABLED
-      Value=!
-      Create Flags=01010000000000010000000000000000
-      Text=< &Back
-      Text French=< &Retour
-      Text German=< &Zurück
-      Text Spanish=< &Atrás
-      Text Italian=< &Indietro
-    end
-    item: Push Button
-      Rectangle=211 187 256 202
-      Variable=DISABLED
-      Value=!
-      Action=3
-      Create Flags=01010000000000010000000000000000
-      Text=&Cancel
-      Text French=&Annuler
-      Text German=&Abbrechen
-      Text Spanish=&Cancelar
-      Text Italian=&Annulla
-    end
-    item: Static
-      Rectangle=8 180 256 181
-      Action=3
-      Create Flags=01010000000000000000000000000111
-    end
-    item: Static
-      Rectangle=86 8 258 42
-      Create Flags=01010000000000000000000000000000
-      Flags=0000000000000001
-      Name=Times New Roman
-      Font Style=-24 0 0 0 700 255 0 0 0 3 2 1 18
-      Text=Installation Completed!
-      Text French=Installation terminée !
-      Text German=Die Installation ist abgeschlossen!
-      Text Spanish=¡Instalación terminada!
-      Text Italian=Installazione completata!
-    end
-    item: Static
-      Rectangle=86 42 256 153
-      Create Flags=01010000000000000000000000000000
-      Text=%APPTITLE% has been successfully installed.
-      Text=
-      Text=Click the Finish button to exit this installation.
-      Text=
-      Text=You can learn more about Tcl/Tk %VER%, including release notes, updates, tutorials, and more at %URL%.  Check the box below to start your web browser and go there now.
-      Text=
-      Text=The installer may ask you to reboot your computer, this is to update your PATH and is not necessary to do immediately.
-      Text French=%APPTITLE% est maintenant installé.
-      Text French=
-      Text French=Cliquez sur le bouton Fin pour quitter l'installation.
-      Text German=%APPTITLE% wurde erfolgreich installiert.
-      Text German=
-      Text German=Klicken Sie auf "Weiter", um die Installation zu beenden.
-      Text Spanish=%APPTITLE% se ha instalado con éxito.
-      Text Spanish=
-      Text Spanish=Presione el botón Terminar para salir de esta instalación.
-      Text Italian=L'installazione %APPTITLE% è stata portata a termine con successo.
-      Text Italian=
-      Text Italian=Premere il pulsante Fine per uscire dall'installazione.
-    end
-    item: Checkbox
-      Rectangle=88 143 245 157
-      Variable=TO_SCRIPTICS
-      Enabled Color=00000000000000001111111111111111
-      Create Flags=01010000000000010000000000000011
-      Text=Show me important information about
-      Text=
-    end
-    item: Static
-      Rectangle=99 156 245 170
-      Enabled Color=00000000000000001111111111111111
-      Create Flags=01010000000000000000000000000000
-      Text=Tcl/Tk %VER% and TclPro
-    end
-  end
-end
-item: End Block
-end
-item: Check Configuration
-  Flags=10111011
-end
-item: If/While Statement
-  Variable=TO_SCRIPTICS
-  Value=A
-  Flags=00000010
-end
-item: Execute Program
-  Command Line=%URL%
-end
-item: End Block
-end
-item: Execute Program
-  Pathname=explorer
-  Command Line=%GROUP%
-end
-item: End Block
-end
diff --git a/tools/tclSplash.bmp b/tools/tclSplash.bmp
deleted file mode 100644
index db8a17e..0000000
--- a/tools/tclSplash.bmp
+++ /dev/null
diff --git a/tools/tclmin.wse b/tools/tclmin.wse
deleted file mode 100644
index 2fd8185..0000000
--- a/tools/tclmin.wse
+++ /dev/null
@@ -1,247 +0,0 @@
-Document Type: WSE
-item: Global
-  Version=5.0
-  Flags=00000100
-  Split=1420
-  Languages=65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
-  Japanese Font Name=MS Gothic
-  Japanese Font Size=10
-  Start Gradient=0 0 255
-  End Gradient=0 0 0
-  Windows Flags=00000000000000010010110000001000
-  Message Font=MS Sans Serif
-  Font Size=8
-  Disk Filename=SETUP
-  Patch Flags=0000000000000001
-  Patch Threshold=85
-  Patch Memory=4000
-end
-item: Remark
-  Text=-------
-end
-item: Remark
-  Text=Tcl 8.0 Minimal Installation
-end
-item: Remark
-  Text=-------
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\opt0.4\pkgIndex.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\opt0.4\pkgIndex.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\opt0.4\optparse.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\opt0.4\optparse.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\http\pkgIndex.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\http2.4\pkgIndex.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\http\http.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\http2.4\http.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\safe.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\safe.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\history.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\history.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\msgbox.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\msgbox.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\optMenu.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\optMenu.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\clrpick.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\clrpick.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\entry.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\entry.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\comdlg.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\comdlg.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\bgerror.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\bgerror.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\obsolete.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\obsolete.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\button.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\button.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\xmfbox.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\xmfbox.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\console.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\console.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\listbox.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\listbox.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\menu.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\menu.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\dialog.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\dialog.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\focus.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\focus.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\palette.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\palette.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\tkfbox.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\tkfbox.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\tk.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\tk.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\text.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\text.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\tearoff.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\tearoff.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\tclIndex
-  Destination=%MAINDIR%\lib\tk%VER%\tclIndex
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\scrlbar.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\scrlbar.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\scale.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\scale.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\library\safetk.tcl
-  Destination=%MAINDIR%\lib\tk%VER%\safetk.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\http1.0\pkgIndex.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\http1.0\pkgIndex.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\http1.0\http.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\http1.0\http.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\win\pkgIndex.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\reg1.0\pkgIndex.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\win\tclreg80.dll
-  Destination=%MAINDIR%\lib\tcl%VER%\reg1.0\tclreg80.dll
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\win\Tcl1680.dll
-  Destination=%SYS32%\Tcl1680.dll
-  Flags=0000001000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\win\tcl80.dll
-  Destination=%SYS32%\tcl80.dll
-  Flags=0000001000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\win\tclpip80.dll
-  Destination=%SYS32%\tclpip80.dll
-  Flags=0000001000000010
-end
-item: Install File
-  Source=n:\dist\Bc45\Bin\cw3215.dll
-  Destination=%SYS32%\cw3215.dll
-  Flags=0000001000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\win\tk80.dll
-  Destination=%SYS32%\tk80.dll
-  Flags=0000001000000010
-end
-item: Install File
-  Source=n:\dist\tk8.0\win\wish80.exe
-  Destination=%MAINDIR%\bin\wish80.exe
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\win\tclsh80.exe
-  Destination=%MAINDIR%\bin\tclsh80.exe
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\tclIndex
-  Destination=%MAINDIR%\lib\tcl%VER%\tclIndex
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\init.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\init.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\parray.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\parray.tcl
-  Flags=0000000000000010
-end
-item: Install File
-  Source=n:\dist\tcl8.0\library\word.tcl
-  Destination=%MAINDIR%\lib\tcl%VER%\word.tcl
-  Flags=0000000000000010
-end
diff --git a/tools/tcltk-man2html-utils.tcl b/tools/tcltk-man2html-utils.tcl
index c0c6a75..8fd1245 100644
--- a/tools/tcltk-man2html-utils.tcl
+++ b/tools/tcltk-man2html-utils.tcl
@@ -142,6 +142,7 @@ proc process-text {text} {
 	    {\(+-}	"&#177;" \
 	    {\(co}	"&copy;" \
 	    {\(em}	"&#8212;" \
+	    {\(en}	"&#8211;" \
 	    {\(fm}	"&#8242;" \
 	    {\(mu}	"&#215;" \
 	    {\(mi}	"&#8722;" \
@@ -636,6 +637,7 @@ proc output-name {line} {
 	lappend manual(wing-toc) $name
 	lappend manual(name-$name) $manual(wing-file)/$manual(name)
     }
+    set manual(tooltip-$manual(wing-file)/$manual(name).htm) $line
 }
 
 ##
@@ -899,7 +901,7 @@ proc insert-cross-references {text} {
 		append result [string range $text 0 [expr {$off-1}]]
 		regexp -indices -start $off {http://[\w/.]+} $text range
 		set url [string range $text {*}$range]
-		append result "<A HREF=\"$url\">" $url "</A>"
+		append result "<A HREF=\"[string trimright $url .]\">$url</A>"
 		set text [string range $text[set text ""] \
 			      [expr {[lindex $range 1]+1}] end]
 		continue
@@ -943,7 +945,9 @@ proc output-directive {line} {
 			set line [next-text]
 			if {[is-a-directive $line]} {
 			    backup-text 1
-			    output-name [join $names { }]
+			    if {[llength $names]} {
+				output-name [join $names { }]
+			    }
 			    return
 			}
 			lappend names [string trim $line]
@@ -1254,7 +1258,11 @@ proc make-manpage-section {outputDir sectionDescriptor} {
     # whistle
     puts stderr "scanning section $manual(wing-name)"
     # put the entry for this section into the short table of contents
-    puts $manual(short-toc-fp) "<DT><A HREF=\"$manual(wing-file)/[indexfile]\">$manual(wing-name)</A></DT><DD>$manual(wing-description)</DD>"
+    if {[regexp {^(.+), version (.+)$} $manual(wing-name) -> name version]} {
+	puts $manual(short-toc-fp) "<DT><A HREF=\"$manual(wing-file)/[indexfile]\" TITLE=\"version $version\">$name</A></DT><DD>$manual(wing-description)</DD>"
+    } else {
+	puts $manual(short-toc-fp) "<DT><A HREF=\"$manual(wing-file)/[indexfile]\">$manual(wing-name)</A></DT><DD>$manual(wing-description)</DD>"
+    }
     # initialize the wing table of contents
     puts $manual(wing-toc-fp) [htmlhead $manual(wing-name) \
 	    $manual(wing-name) $overall_title "../[indexfile]"]
@@ -1329,7 +1337,7 @@ proc make-manpage-section {outputDir sectionDescriptor} {
 	    }
 	    switch -exact -- $code {
 		.if - .nr - .ti - .in - .ie - .el -
-		.ad - .na - .so - .ne - .AS - .VE - .VS - . {
+		.ad - .na - .so - .ne - .AS - .HS - .VE - .VS - . {
 		    # ignore
 		    continue
 		}
@@ -1565,8 +1573,16 @@ proc make-manpage-section {outputDir sectionDescriptor} {
 	    set tail [lindex $tail [expr {[llength $tail]-1}]]
 	}
 	set tail [file tail $tail]
-	append rows([expr {$n%$nrows}]) \
-	    "<td> <a href=\"$tail.htm\">$name</a> </td>"
+	if {[info exists manual(tooltip-$manual(wing-file)/$tail.htm)]} {
+	    set tooltip $manual(tooltip-$manual(wing-file)/$tail.htm)
+	    set tooltip [string map {[ {\[} ] {\]} $ {\$} \\ \\\\} $tooltip]
+	    regsub {^[^-]+-\s*(.)} $tooltip {[string totitle \1]} tooltip
+	    append rows([expr {$n%$nrows}]) \
+		"<td> <a href=\"$tail.htm\" title=\"[subst $tooltip]\">$name</a> </td>"
+	} else {
+	    append rows([expr {$n%$nrows}]) \
+		"<td> <a href=\"$tail.htm\">$name</a> </td>"
+	}
 	incr n
     }
     puts $manual(wing-toc-fp) <table>
diff --git a/tools/tcltk-man2html.tcl b/tools/tcltk-man2html.tcl
index 585d76a..1ceceb9 100755
--- a/tools/tcltk-man2html.tcl
+++ b/tools/tcltk-man2html.tcl
@@ -1,6 +1,12 @@
 #!/usr/bin/env tclsh
 
-package require Tcl 8.6
+if {[catch {package require Tcl 8.6} msg]} {
+    puts stderr "ERROR: $msg"
+    puts stderr "If running this script from 'make html', set the\
+	NATIVE_TCLSH environment\nvariable to point to an installed\
+	tclsh8.6 (or the equivalent tclsh86.exe\non Windows)."
+    exit 1
+}
 
 # Convert Ousterhout format man pages into highly crosslinked hypertext.
 #
@@ -16,7 +22,7 @@ package require Tcl 8.6
 # Copyright (c) 1995-1997 Roger E. Critchlow Jr
 # Copyright (c) 2004-2010 Donal K. Fellows
 
-regexp {\d+\.\d+} {$Revision: 1.49 $} ::Version
+set ::Version "50/8.6"
 set ::CSSFILE "docs.css"
 
 ##
@@ -328,7 +334,15 @@ proc make-man-pages {html args} {
 	    foreach man $manual(keyword-$k) {
 		set name [lindex $man 0]
 		set file [lindex $man 1]
-		lappend refs "<A HREF=\"../$file\">$name</A>"
+		if {[info exists manual(tooltip-$file)]} {
+		    set tooltip $manual(tooltip-$file)
+		    if {[string match {*[<>""]*} $tooltip]} {
+			manerror "bad tooltip for $file: \"$tooltip\""
+		    }
+		    lappend refs "<A HREF=\"../$file\" TITLE=\"$tooltip\">$name</A>"
+		} else {
+		    lappend refs "<A HREF=\"../$file\">$name</A>"
+		}
 	    }
 	    puts $afp "[join $refs {, }]</DD>"
 	}
@@ -420,9 +434,18 @@ proc make-man-pages {html args} {
 ##
 ## Helper for assembling the descriptions of base packages (i.e., Tcl and Tk).
 ##
-proc plus-base {var glob name dir desc} {
+proc plus-base {var root glob name dir desc} {
     global tcltkdir
     if {$var} {
+	if {[file exists $tcltkdir/$root/README]} {
+	    set f [open $tcltkdir/$root/README]
+	    set d [read $f]
+	    close $f
+	    if {[regexp {This is the \w+ (\S+) source distribution} $d -> version]} {
+	       append name ", version $version"
+	    }
+	}
+	set glob $root/$glob
 	return [list $tcltkdir/$glob $name $dir $desc]
     }
 }
@@ -437,17 +460,17 @@ proc plus-pkgs {type args} {
     }
     if {!$build_tcl} return
     set result {}
-    foreach {dir name} $args {
-	set globpat $tcltkdir/$tcldir/pkgs/$dir*/doc/*.$type
-	if {![llength [glob -nocomplain $globpat]]} {
+    set pkgsdir $tcltkdir/$tcldir/pkgs
+    foreach {dir name version} $args {
+	set globpat $pkgsdir/$dir/doc/*.$type
+	if {![llength [glob -type f -nocomplain $globpat]]} {
 	    # Fallback for manpages generated using doctools
-	    set globpat $tcltkdir/$tcldir/pkgs/$dir*/doc/man/*.$type
-	    if {![llength [glob -nocomplain $globpat]]} {
+	    set globpat $pkgsdir/$dir/doc/man/*.$type
+	    if {![llength [glob -type f -nocomplain $globpat]]} {
 		continue
 	    }
 	}
-	regexp "pkgs/${dir}(.*)/doc$" [glob $tcltkdir/$tcldir/pkgs/$dir*/doc] \
-	    -> version
+	set dir [string trimright $dir "0123456789-."]
 	switch $type {
 	    n {
 		set title "$name Package Commands"
@@ -625,6 +648,48 @@ try {
 	append appdir "$tkdir"
     }
 
+    apply {{} {
+    global packageBuildList tcltkdir tcldir build_tcl
+
+    # When building docs for Tcl, try to build docs for bundled packages too
+    set packageBuildList {}
+    if {$build_tcl} {
+	set pkgsDir [file join $tcltkdir $tcldir pkgs]
+	set subdirs [glob -nocomplain -types d -tails -directory $pkgsDir *]
+
+	foreach dir [lsort $subdirs] {
+	    # Parse the subdir name into (name, version) as fallback...
+	    set description [split $dir -]
+	    if {2 != [llength $description]} {
+		regexp {([^0-9]*)(.*)} $dir -> n v
+		set description [list $n $v]
+	    }
+
+	    # ... but try to extract (name, version) from subdir contents
+	    try {
+		try {
+		    set f [open [file join $pkgsDir $dir configure.in]]
+		} trap {POSIX ENOENT} {} {
+		    set f [open [file join $pkgsDir $dir configure.ac]]
+		}
+		foreach line [split [read $f] \n] {
+		    if {2 == [scan $line \
+			    { AC_INIT ( [%[^]]] , [%[^]]] ) } n v]} {
+			set description [list $n $v]
+			break
+		    }
+		}
+	    } finally {
+		catch {close $f; unset f}
+	    }
+
+	    if {[file exists [file join $pkgsDir $dir configure]]} {
+		# Looks like a package, record our best extraction attempt
+		lappend packageBuildList $dir {*}$description
+	    }
+	}
+    }
+
     # Get the list of packages to try, and what their human-readable names
     # are. Note that the package directory list should be version-less.
     try {
@@ -635,7 +700,8 @@ try {
 		foreach line [split [read $f] \n] {
 		    if {[string trim $line] eq ""} continue
 		    if {[string match #* $line]} continue
-		    lappend packageDirNameMap {*}$line
+		    lassign $line dir name
+		    lappend packageDirNameMap $dir $name
 		}
 	    } finally {
 		close $f
@@ -649,22 +715,31 @@ try {
 	}
     }
 
+    # Convert to human readable names, if applicable
+    for {set idx 0} {$idx < [llength $packageBuildList]} {incr idx 3} {
+	lassign [lrange $packageBuildList $idx $idx+2] d n v
+	if {[dict exists $packageDirNameMap $n]} {
+	    lset packageBuildList $idx+1 [dict get $packageDirNameMap $n]
+	}
+    }
+    }}
+
     #
     # Invoke the scraper/converter engine.
     #
     make-man-pages $webdir \
 	[list $tcltkdir/{$appdir}/doc/*.1 "$tcltkdesc Applications" UserCmd \
 	     "The interpreters which implement $cmdesc."] \
-	[plus-base $build_tcl $tcldir/doc/*.n {Tcl Commands} TclCmd \
+	[plus-base $build_tcl $tcldir doc/*.n {Tcl Commands} TclCmd \
 	     "The commands which the <B>tclsh</B> interpreter implements."] \
-	[plus-base $build_tk $tkdir/doc/*.n {Tk Commands} TkCmd \
+	[plus-base $build_tk $tkdir doc/*.n {Tk Commands} TkCmd \
 	     "The additional commands which the <B>wish</B> interpreter implements."] \
-	{*}[plus-pkgs n {*}$packageDirNameMap] \
-	[plus-base $build_tcl $tcldir/doc/*.3 {Tcl C API} TclLib \
+	{*}[plus-pkgs n {*}$packageBuildList] \
+	[plus-base $build_tcl $tcldir doc/*.3 {Tcl C API} TclLib \
 	     "The C functions which a Tcl extended C program may use."] \
-	[plus-base $build_tk $tkdir/doc/*.3 {Tk C API} TkLib \
+	[plus-base $build_tk $tkdir doc/*.3 {Tk C API} TkLib \
 	     "The additional C functions which a Tk extended C program may use."] \
-	{*}[plus-pkgs 3 {*}$packageDirNameMap]
+	{*}[plus-pkgs 3 {*}$packageBuildList]
 } on error {msg opts} {
     # On failure make sure we show what went wrong. We're not supposed
     # to get here though; it represents a bug in the script.
diff --git a/tools/uniClass.tcl b/tools/uniClass.tcl
index 32b40e9..9b4819d 100644
--- a/tools/uniClass.tcl
+++ b/tools/uniClass.tcl
@@ -72,7 +72,7 @@ proc genTable {type} {
 	    if {$i == ($last + 1)} {
 		set last $i
 	    } else {
-		if {$first > 0} {
+		if {$first >= 0} {
 		    emitRange $first $last
 		}
 		set first $i
diff --git a/unix/Makefile.in b/unix/Makefile.in
index aa1820e..94295f4 100644..100755
--- a/unix/Makefile.in
+++ b/unix/Makefile.in
@@ -96,7 +96,7 @@ CFLAGS_WARNING		= @CFLAGS_WARNING@
 
 # The default switches for optimization or debugging
 CFLAGS_DEBUG		= @CFLAGS_DEBUG@
-CFLAGS_OPTIMIZE		= -DNDEBUG @CFLAGS_OPTIMIZE@
+CFLAGS_OPTIMIZE		= @CFLAGS_OPTIMIZE@
 
 # To change the compiler switches, for example to change from optimization to
 # debugging symbols, change the following line:
@@ -291,24 +291,24 @@ XTTEST_OBJS = xtTestInit.o tclTest.o tclTestObj.o tclTestProcBodyObj.o \
 	tclThreadTest.o tclUnixTest.o tclXtNotify.o tclXtTest.o
 
 GENERIC_OBJS = regcomp.o regexec.o regfree.o regerror.o tclAlloc.o \
-	tclAsync.o tclBasic.o tclBinary.o tclCkalloc.o tclClock.o \
-	tclCmdAH.o tclCmdIL.o tclCmdMZ.o tclCompCmds.o tclCompCmdsSZ.o \
-	tclCompExpr.o tclCompile.o tclConfig.o tclDate.o tclDictObj.o \
+	tclAssembly.o tclAsync.o tclBasic.o tclBinary.o tclCkalloc.o \
+	tclClock.o tclCmdAH.o tclCmdIL.o tclCmdMZ.o \
+	tclCompCmds.o tclCompCmdsGR.o tclCompCmdsSZ.o tclCompExpr.o \
+	tclCompile.o tclConfig.o tclDate.o tclDictObj.o tclDisassemble.o \
 	tclEncoding.o tclEnsemble.o \
 	tclEnv.o tclEvent.o tclExecute.o tclFCmd.o tclFileName.o tclGet.o \
 	tclHash.o tclHistory.o tclIndexObj.o tclInterp.o tclIO.o tclIOCmd.o \
 	tclIORChan.o tclIORTrans.o tclIOGT.o tclIOSock.o tclIOUtil.o \
 	tclLink.o tclListObj.o \
 	tclLiteral.o tclLoad.o tclMain.o tclNamesp.o tclNotify.o \
-	tclObj.o tclPanic.o tclParse.o tclPathObj.o tclPipe.o \
+	tclObj.o tclOptimize.o tclPanic.o tclParse.o tclPathObj.o tclPipe.o \
 	tclPkg.o tclPkgConfig.o tclPosixStr.o \
 	tclPreserve.o tclProc.o tclRegexp.o \
 	tclResolve.o tclResult.o tclScan.o tclStringObj.o \
 	tclStrToD.o tclThread.o \
 	tclThreadAlloc.o tclThreadJoin.o tclThreadStorage.o tclStubInit.o \
 	tclTimer.o tclTrace.o tclUtf.o tclUtil.o tclVar.o tclZlib.o \
-	tclTomMathInterface.o \
-	tclAssembly.o
+	tclTomMathInterface.o
 
 OO_OBJS = tclOO.o tclOOBasic.o tclOOCall.o tclOODefineCmds.o tclOOInfo.o \
 	tclOOMethod.o tclOOStubInit.o
@@ -335,7 +335,10 @@ TOMMATH_OBJS = bncore.o bn_reverse.o bn_fast_s_mp_mul_digs.o \
 	bn_mp_unsigned_bin_size.o bn_mp_xor.o bn_mp_zero.o bn_s_mp_add.o \
         bn_s_mp_mul_digs.o bn_s_mp_sqr.o bn_s_mp_sub.o
 
-STUB_LIB_OBJS = tclStubLib.o tclTomMathStubLib.o tclOOStubLib.o ${COMPAT_OBJS}
+STUB_LIB_OBJS = tclStubLib.o \
+	tclTomMathStubLib.o \
+	tclOOStubLib.o \
+	${COMPAT_OBJS}
 
 UNIX_OBJS = tclUnixChan.o tclUnixEvent.o tclUnixFCmd.o \
 	tclUnixFile.o tclUnixPipe.o tclUnixSock.o \
@@ -346,6 +349,8 @@ NOTIFY_OBJS = tclUnixNotfy.o
 
 MAC_OSX_OBJS = tclMacOSXBundle.o tclMacOSXFCmd.o tclMacOSXNotify.o
 
+CYGWIN_OBJS = tclWinError.o
+
 DTRACE_OBJ = tclDTrace.o
 
 ZLIB_OBJS = Zadler32.o Zcompress.o Zcrc32.o Zdeflate.o Zinfback.o \
@@ -395,12 +400,14 @@ GENERIC_SRCS = \
 	$(GENERIC_DIR)/tclCmdIL.c \
 	$(GENERIC_DIR)/tclCmdMZ.c \
 	$(GENERIC_DIR)/tclCompCmds.c \
+	$(GENERIC_DIR)/tclCompCmdsGR.c \
 	$(GENERIC_DIR)/tclCompCmdsSZ.c \
 	$(GENERIC_DIR)/tclCompExpr.c \
 	$(GENERIC_DIR)/tclCompile.c \
 	$(GENERIC_DIR)/tclConfig.c \
 	$(GENERIC_DIR)/tclDate.c \
 	$(GENERIC_DIR)/tclDictObj.c \
+	$(GENERIC_DIR)/tclDisassemble.c \
 	$(GENERIC_DIR)/tclEncoding.c \
 	$(GENERIC_DIR)/tclEnsemble.c \
 	$(GENERIC_DIR)/tclEnv.c \
@@ -428,6 +435,7 @@ GENERIC_SRCS = \
 	$(GENERIC_DIR)/tclNamesp.c \
 	$(GENERIC_DIR)/tclNotify.c \
 	$(GENERIC_DIR)/tclObj.c \
+	$(GENERIC_DIR)/tclOptimize.c \
 	$(GENERIC_DIR)/tclParse.c \
 	$(GENERIC_DIR)/tclPathObj.c \
 	$(GENERIC_DIR)/tclPipe.c \
@@ -573,6 +581,9 @@ MAC_OSX_SRCS = \
 	$(MAC_OSX_DIR)/tclMacOSXFCmd.c \
 	$(MAC_OSX_DIR)/tclMacOSXNotify.c
 
+CYGWIN_SRCS = \
+	$(TOP_DIR)/win/tclWinError.c
+
 DTRACE_HDR = tclDTrace.h
 
 DTRACE_SRC = $(GENERIC_DIR)/tclDTrace.d
@@ -603,7 +614,7 @@ SRCS = $(GENERIC_SRCS) $(TOMMATH_SRCS) $(UNIX_SRCS) $(NOTIFY_SRCS) \
 
 all: binaries libraries doc packages
 
-binaries: ${LIB_FILE} $(STUB_LIB_FILE) ${TCL_EXE}
+binaries: ${LIB_FILE} ${TCL_EXE}
 
 libraries:
 
@@ -611,15 +622,14 @@ doc:
 
 # The following target is configured by autoconf to generate either a shared
 # library or non-shared library for Tcl.
-${LIB_FILE}: ${OBJS} ${STUB_LIB_FILE}
+${LIB_FILE}: ${STUB_LIB_FILE} ${OBJS}
 	rm -f $@
 	@MAKE_LIB@
-	@if test "x$(DLL_INSTALL_DIR)" = "x$(BIN_INSTALL_DIR)"; then\
-	    cp ${ZLIB_DIR}/win32/zlib1.dll .;\
-	fi
-
 
 ${STUB_LIB_FILE}: ${STUB_LIB_OBJS}
+	@if test "x${LIB_FILE}" = "xlibtcl${MAJOR_VERSION}.${MINOR_VERSION}.dll"; then \
+	    (cd ${TOP_DIR}/win; ${MAKE} tcldde14.dll tclreg13.dll); \
+	fi
 	rm -f $@
 	@MAKE_STUB_LIB@
 
@@ -633,9 +643,9 @@ tclLibObjs:
 # This targets actually build the objects needed for the lib in the above case
 objs: ${OBJS}
 
-${TCL_EXE}: ${TCLSH_OBJS} ${TCL_LIB_FILE}
+${TCL_EXE}: ${TCLSH_OBJS} ${TCL_LIB_FILE} ${TCL_STUB_LIB_FILE}
 	${CC} ${CFLAGS} ${LDFLAGS} ${TCLSH_OBJS} \
-		@TCL_BUILD_LIB_SPEC@ ${LIBS} @EXTRA_TCLSH_LIBS@ \
+		@TCL_BUILD_LIB_SPEC@ ${TCL_STUB_LIB_FILE} ${LIBS} @EXTRA_TCLSH_LIBS@ \
 		${CC_SEARCH_FLAGS} -o ${TCL_EXE}
 
 # Must be empty so it doesn't conflict with rule for ${TCL_EXE} above
@@ -773,10 +783,6 @@ install-strip:
 		INSTALL_PROGRAM="$(INSTALL_PROGRAM) ${INSTALL_STRIP_PROGRAM}" \
 		INSTALL_LIBRARY="$(INSTALL_LIBRARY) ${INSTALL_STRIP_LIBRARY}"
 
-# Note: before running ranlib below, must cd to target directory because some
-# ranlibs write to current directory, and this might not always be possible
-# (e.g. if installing as root).
-
 install-binaries: binaries
 	@for i in "$(LIB_INSTALL_DIR)" "$(BIN_INSTALL_DIR)" \
 		"$(CONFIG_INSTALL_DIR)"; \
@@ -787,11 +793,6 @@ install-binaries: binaries
 		else true; \
 		fi; \
 	    done;
-	@if test "x$(DLL_INSTALL_DIR)" = "x$(BIN_INSTALL_DIR)"; then\
-	    echo "Installing zlib1.dll to $(BIN_INSTALL_DIR)/";\
-	    $(INSTALL_LIBRARY) zlib1.dll "$(BIN_INSTALL_DIR)";\
-	    chmod 555 "$(BIN_INSTALL_DIR)/zlib1.dll";\
-	fi
 	@echo "Installing $(LIB_FILE) to $(DLL_INSTALL_DIR)/"
 	@@INSTALL_LIB@
 	@chmod 555 "$(DLL_INSTALL_DIR)/$(LIB_FILE)"
@@ -839,8 +840,8 @@ install-libraries: libraries
 	    do \
 	    $(INSTALL_DATA) $$i "$(SCRIPT_INSTALL_DIR)"/http1.0; \
 	    done;
-	@echo "Installing package http 2.8.4 as a Tcl Module";
-	@$(INSTALL_DATA) $(TOP_DIR)/library/http/http.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.6/http-2.8.4.tm;
+	@echo "Installing package http 2.8.9 as a Tcl Module";
+	@$(INSTALL_DATA) $(TOP_DIR)/library/http/http.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.6/http-2.8.9.tm;
 	@echo "Installing package opt0.4 files to $(SCRIPT_INSTALL_DIR)/opt0.4/";
 	@for i in $(TOP_DIR)/library/opt/*.tcl ; \
 	    do \
@@ -848,11 +849,11 @@ install-libraries: libraries
 	    done;
 	@echo "Installing package msgcat 1.6.0 as a Tcl Module";
 	@$(INSTALL_DATA) $(TOP_DIR)/library/msgcat/msgcat.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.5/msgcat-1.6.0.tm;
-	@echo "Installing package tcltest 2.3.4 as a Tcl Module";
-	@$(INSTALL_DATA) $(TOP_DIR)/library/tcltest/tcltest.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.5/tcltest-2.3.4.tm;
+	@echo "Installing package tcltest 2.3.8 as a Tcl Module";
+	@$(INSTALL_DATA) $(TOP_DIR)/library/tcltest/tcltest.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.5/tcltest-2.3.8.tm;
 
-	@echo "Installing package platform 1.0.10 as a Tcl Module";
-	@$(INSTALL_DATA) $(TOP_DIR)/library/platform/platform.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.4/platform-1.0.10.tm;
+	@echo "Installing package platform 1.0.13 as a Tcl Module";
+	@$(INSTALL_DATA) $(TOP_DIR)/library/platform/platform.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.4/platform-1.0.13.tm;
 	@echo "Installing package platform::shell 1.1.4 as a Tcl Module";
 	@$(INSTALL_DATA) $(TOP_DIR)/library/platform/shell.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.4/platform/shell-1.1.4.tm;
 
@@ -866,10 +867,39 @@ install-libraries: libraries
 	        "$(SCRIPT_INSTALL_DIR)"/tm.tcl; \
 	fi
 
-install-tzdata: ${NATIVE_TCLSH}
+install-tzdata:
+	@for i in tzdata; \
+	    do \
+	    if [ ! -d "$(SCRIPT_INSTALL_DIR)"/$$i ] ; then \
+		echo "Making directory $(SCRIPT_INSTALL_DIR)/$$i"; \
+		$(INSTALL_DATA_DIR) "$(SCRIPT_INSTALL_DIR)"/$$i; \
+		else true; \
+		fi; \
+	    done;
 	@echo "Installing time zone files to $(SCRIPT_INSTALL_DIR)/tzdata/"
-	@${NATIVE_TCLSH} $(TOOL_DIR)/installData.tcl \
-	    $(TOP_DIR)/library/tzdata "$(SCRIPT_INSTALL_DIR)"/tzdata
+	@for i in $(TOP_DIR)/library/tzdata/* ; do \
+	    if [ -d $$i ] ; then \
+		ii=`basename $$i`; \
+		if [ ! -d "$(SCRIPT_INSTALL_DIR)"/tzdata/$$ii ] ; then \
+		    $(INSTALL_DATA_DIR) "$(SCRIPT_INSTALL_DIR)"/tzdata/$$ii; \
+		fi; \
+		for j in $$i/* ; do \
+		    if [ -d $$j ] ; then \
+			jj=`basename $$j`; \
+			if [ ! -d "$(SCRIPT_INSTALL_DIR)"/tzdata/$$ii/$$jj ] ; then \
+			    $(INSTALL_DATA_DIR) "$(SCRIPT_INSTALL_DIR)"/tzdata/$$ii/$$jj; \
+			fi; \
+			for k in $$j/* ; do \
+			    $(INSTALL_DATA) $$k "$(SCRIPT_INSTALL_DIR)"/tzdata/$$ii/$$jj; \
+			done; \
+		    else \
+			$(INSTALL_DATA) $$j "$(SCRIPT_INSTALL_DIR)"/tzdata/$$ii; \
+		    fi; \
+		done; \
+	    else \
+		$(INSTALL_DATA) $$i "$(SCRIPT_INSTALL_DIR)"/tzdata; \
+	    fi; \
+	done;
 
 install-msgs:
 	@for i in msgs; \
@@ -1002,6 +1032,7 @@ IOHDR=$(GENERIC_DIR)/tclIO.h
 MATHHDRS=$(GENERIC_DIR)/tommath.h $(GENERIC_DIR)/tclTomMath.h
 PARSEHDR=$(GENERIC_DIR)/tclParse.h
 NREHDR=$(GENERIC_DIR)/tclInt.h
+TRIMHDR=$(GENERIC_DIR)/tclStringTrim.h
 
 regcomp.o: $(REGHDRS) $(GENERIC_DIR)/regcomp.c $(GENERIC_DIR)/regc_lex.c \
 		$(GENERIC_DIR)/regc_color.c $(GENERIC_DIR)/regc_locale.c \
@@ -1047,7 +1078,7 @@ tclCmdAH.o: $(GENERIC_DIR)/tclCmdAH.c
 tclCmdIL.o: $(GENERIC_DIR)/tclCmdIL.c $(TCLREHDRS)
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCmdIL.c
 
-tclCmdMZ.o: $(GENERIC_DIR)/tclCmdMZ.c $(TCLREHDRS)
+tclCmdMZ.o: $(GENERIC_DIR)/tclCmdMZ.c $(TCLREHDRS) $(TRIMHDR)
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCmdMZ.c
 
 tclDate.o: $(GENERIC_DIR)/tclDate.c
@@ -1056,7 +1087,10 @@ tclDate.o: $(GENERIC_DIR)/tclDate.c
 tclCompCmds.o: $(GENERIC_DIR)/tclCompCmds.c $(COMPILEHDR)
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompCmds.c
 
-tclCompCmdsSZ.o: $(GENERIC_DIR)/tclCompCmdsSZ.c $(COMPILEHDR)
+tclCompCmdsGR.o: $(GENERIC_DIR)/tclCompCmdsGR.c $(COMPILEHDR)
+	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompCmdsGR.c
+
+tclCompCmdsSZ.o: $(GENERIC_DIR)/tclCompCmdsSZ.c $(COMPILEHDR) $(TRIMHDR)
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompCmdsSZ.c
 
 tclCompExpr.o: $(GENERIC_DIR)/tclCompExpr.c $(COMPILEHDR)
@@ -1071,6 +1105,9 @@ tclConfig.o: $(GENERIC_DIR)/tclConfig.c
 tclDictObj.o: $(GENERIC_DIR)/tclDictObj.c $(MATHHDRS)
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclDictObj.c
 
+tclDisassemble.o: $(GENERIC_DIR)/tclDisassemble.c $(COMPILEHDR)
+	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclDisassemble.c
+
 tclEncoding.o: $(GENERIC_DIR)/tclEncoding.c
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclEncoding.c
 
@@ -1140,6 +1177,9 @@ tclLiteral.o: $(GENERIC_DIR)/tclLiteral.c $(COMPILEHDR)
 tclObj.o: $(GENERIC_DIR)/tclObj.c $(COMPILEHDR) $(MATHHDRS)
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclObj.c
 
+tclOptimize.o: $(GENERIC_DIR)/tclOptimize.c $(COMPILEHDR)
+	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclOptimize.c
+
 tclLoad.o: $(GENERIC_DIR)/tclLoad.c
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclLoad.c
 
@@ -1269,7 +1309,7 @@ tclStubInit.o: $(GENERIC_DIR)/tclStubInit.c
 tclTrace.o: $(GENERIC_DIR)/tclTrace.c
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclTrace.c
 
-tclUtil.o: $(GENERIC_DIR)/tclUtil.c $(PARSEHDR)
+tclUtil.o: $(GENERIC_DIR)/tclUtil.c $(PARSEHDR) $(TRIMHDR)
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclUtil.c
 
 tclUtf.o: $(GENERIC_DIR)/tclUtf.c $(GENERIC_DIR)/tclUniData.c
@@ -1533,10 +1573,9 @@ tclUnixThrd.o: $(UNIX_DIR)/tclUnixThrd.c
 tclUnixTime.o: $(UNIX_DIR)/tclUnixTime.c
 	$(CC) -c $(CC_SWITCHES) $(UNIX_DIR)/tclUnixTime.c
 
+TCL_LOCATIONS=-DTCL_LIBRARY="\"${TCL_LIBRARY}\"" -DTCL_PACKAGE_PATH="\"${TCL_PACKAGE_PATH}\""
 tclUnixInit.o: $(UNIX_DIR)/tclUnixInit.c tclConfig.sh
-	$(CC) -c $(CC_SWITCHES) -DTCL_LIBRARY=\"${TCL_LIBRARY}\" \
-		-DTCL_PACKAGE_PATH="\"${TCL_PACKAGE_PATH}\"" \
-		$(UNIX_DIR)/tclUnixInit.c
+	$(CC) -c $(CC_SWITCHES) $(TCL_LOCATIONS) $(UNIX_DIR)/tclUnixInit.c
 
 tclUnixCompat.o: $(UNIX_DIR)/tclUnixCompat.c
 	$(CC) -c $(CC_SWITCHES) $(UNIX_DIR)/tclUnixCompat.c
@@ -1571,7 +1610,7 @@ $(DTRACE_OBJ): $(DTRACE_SRC) $(TCL_OBJS)
 # notifier can modify them to suit their own installation.
 #--------------------------------------------------------------------------
 
-xttest: ${XTTEST_OBJS} ${TCL_LIB_FILE} ${TCL_STUB_LIB_FILE} ${BUILD_DLTEST}
+xttest:	${XTTEST_OBJS} ${TCL_LIB_FILE} ${TCL_STUB_LIB_FILE} ${BUILD_DLTEST}
 	${CC} ${CFLAGS} ${LDFLAGS} ${XTTEST_OBJS} \
 		@TCL_BUILD_LIB_SPEC@ ${TCL_STUB_LIB_FILE} ${LIBS} @EXTRA_TCLSH_LIBS@ \
 		${CC_SEARCH_FLAGS} -L/usr/openwin/lib -lXt -o xttest
@@ -1654,7 +1693,7 @@ Zzutil.o:    $(ZLIB_DIR)/zutil.c
 #--------------------------------------------------------------------------
 
 tclStubLib.o: $(GENERIC_DIR)/tclStubLib.c
-	$(CC) -c $(STUB_CC_SWITCHES) $(GENERIC_DIR)/tclStubLib.c
+	$(CC) -c $(STUB_CC_SWITCHES) -DSTATIC_BUILD $(GENERIC_DIR)/tclStubLib.c
 
 tclTomMathStubLib.o: $(GENERIC_DIR)/tclTomMathStubLib.c
 	$(CC) -c $(STUB_CC_SWITCHES) $(GENERIC_DIR)/tclTomMathStubLib.c
@@ -1718,7 +1757,7 @@ install-packages: packages
 	  fi; \
 	done
 
-test-packages: tcltest packages
+test-packages: ${TCLTEST_EXE} packages
 	@for i in $(PKGS_DIR)/*; do \
 	  if [ -d $$i ]; then \
 	    pkg=`basename $$i`; \
@@ -1913,6 +1952,7 @@ $(MAC_OSX_DIR)/configure: $(MAC_OSX_DIR)/configure.ac $(UNIX_DIR)/configure
 $(UNIX_DIR)/tclConfig.h.in: $(MAC_OSX_DIR)/configure
 	cd $(MAC_OSX_DIR); autoheader; touch $@
 
+EOLFIX=$(NATIVE_TCLSH) $(TOOL_DIR)/eolFix.tcl
 dist: $(UNIX_DIR)/configure $(UNIX_DIR)/tclConfig.h.in $(UNIX_DIR)/tcl.pc.in $(MAC_OSX_DIR)/configure genstubs dist-packages ${NATIVE_TCLSH}
 	rm -rf $(DISTDIR)
 	mkdir -p $(DISTDIR)/unix
@@ -1928,15 +1968,15 @@ dist: $(UNIX_DIR)/configure $(UNIX_DIR)/tclConfig.h.in $(UNIX_DIR)/tcl.pc.in $(M
 		$(UNIX_DIR)/tcl.pc.in $(DISTDIR)/unix
 	chmod 775 $(DISTDIR)/unix/configure $(DISTDIR)/unix/configure.in
 	chmod 775 $(DISTDIR)/unix/ldAix
-	mkdir $(DISTDIR)/generic
+	@mkdir $(DISTDIR)/generic
 	cp -p $(GENERIC_DIR)/*.[cdh] $(DISTDIR)/generic
 	cp -p $(GENERIC_DIR)/*.decls $(DISTDIR)/generic
 	cp -p $(GENERIC_DIR)/README $(DISTDIR)/generic
 	cp -p $(GENERIC_DIR)/tclGetDate.y $(DISTDIR)/generic
-	cp -p $(TOP_DIR)/changes $(TOP_DIR)/ChangeLog $(TOP_DIR)/README* \
+	cp -p $(TOP_DIR)/changes $(TOP_DIR)/ChangeLog $(TOP_DIR)/README \
 		$(TOP_DIR)/ChangeLog.[12]??? $(TOP_DIR)/license.terms \
 		$(DISTDIR)
-	mkdir $(DISTDIR)/library
+	@mkdir $(DISTDIR)/library
 	cp -p $(TOP_DIR)/license.terms $(TOP_DIR)/library/*.tcl \
 		$(TOP_DIR)/library/tclIndex $(DISTDIR)/library
 	for i in http1.0 http opt msgcat reg dde tcltest platform; \
@@ -1944,84 +1984,83 @@ dist: $(UNIX_DIR)/configure $(UNIX_DIR)/tclConfig.h.in $(UNIX_DIR)/tcl.pc.in $(M
 		mkdir $(DISTDIR)/library/$$i ;\
 		cp -p $(TOP_DIR)/library/$$i/*.tcl $(DISTDIR)/library/$$i; \
 	    done;
-	mkdir $(DISTDIR)/library/encoding
+	@mkdir $(DISTDIR)/library/encoding
 	cp -p $(TOP_DIR)/library/encoding/*.enc $(DISTDIR)/library/encoding
-	mkdir $(DISTDIR)/library/msgs
+	@mkdir $(DISTDIR)/library/msgs
 	cp -p $(TOP_DIR)/library/msgs/*.msg $(DISTDIR)/library/msgs
-	( cd $(TOP_DIR); \
+	@echo cp -r $(TOP_DIR)/library/tzdata $(DISTDIR)/library/tzdata
+	@( cd $(TOP_DIR); \
 	  find library/tzdata -name CVS -prune -o -type f -print ) \
 	    | ( cd $(TOP_DIR) ; xargs tar cf - ) \
 	    | ( cd $(DISTDIR) ; tar xfp - )
-	mkdir $(DISTDIR)/doc
+	@mkdir $(DISTDIR)/doc
 	cp -p $(TOP_DIR)/license.terms $(TOP_DIR)/doc/*.[13n] \
 		$(TOP_DIR)/doc/man.macros $(DISTDIR)/doc
-	mkdir $(DISTDIR)/compat
+	@mkdir $(DISTDIR)/compat
 	cp -p $(TOP_DIR)/license.terms $(COMPAT_DIR)/*.[ch] \
 		$(COMPAT_DIR)/README $(DISTDIR)/compat
-	mkdir $(DISTDIR)/compat/zlib
+	@mkdir $(DISTDIR)/compat/zlib
 	( cd $(COMPAT_DIR)/zlib; \
 	  find . -name CVS -prune -o -type f -print ) \
 	    | ( cd $(COMPAT_DIR)/zlib ; xargs tar cf - ) \
 	    | ( cd $(DISTDIR)/compat/zlib ; tar xfp - )
-	mkdir $(DISTDIR)/tests
+	@mkdir $(DISTDIR)/tests
 	cp -p $(TOP_DIR)/license.terms $(DISTDIR)/tests
 	cp -p $(TOP_DIR)/tests/*.test $(TOP_DIR)/tests/README \
 		$(TOP_DIR)/tests/httpd $(TOP_DIR)/tests/*.tcl \
 		$(DISTDIR)/tests
-	mkdir $(DISTDIR)/win
+	@mkdir $(DISTDIR)/win
 	cp $(TOP_DIR)/win/Makefile.in $(DISTDIR)/win
 	cp $(TOP_DIR)/win/configure.in $(TOP_DIR)/win/configure \
 		$(TOP_DIR)/win/tclConfig.sh.in $(TOP_DIR)/win/tclooConfig.sh \
 		$(TOP_DIR)/win/tcl.m4 $(TOP_DIR)/win/aclocal.m4 \
+		$(TOP_DIR)/win/tclsh.exe.manifest.in \
 		$(DISTDIR)/win
 	cp -p $(TOP_DIR)/win/*.[ch] $(TOP_DIR)/win/*.ico $(TOP_DIR)/win/*.rc \
 		$(DISTDIR)/win
 	cp -p $(TOP_DIR)/win/*.bat $(DISTDIR)/win
-	$(NATIVE_TCLSH) $(TOOL_DIR)/eolFix.tcl -crlf $(DISTDIR)/win/*.bat
+	@$(EOLFIX) -crlf $(DISTDIR)/win/*.bat
 	cp -p $(TOP_DIR)/win/makefile.* $(DISTDIR)/win
-	$(NATIVE_TCLSH) $(TOOL_DIR)/eolFix.tcl -crlf $(DISTDIR)/win/makefile.*
+	@$(EOLFIX) -crlf $(DISTDIR)/win/makefile.bc $(DISTDIR)/win/makefile.vc
 	cp -p $(TOP_DIR)/win/rules.vc $(DISTDIR)/win
-	$(NATIVE_TCLSH) $(TOOL_DIR)/eolFix.tcl -crlf $(DISTDIR)/win/rules.vc
+	@$(EOLFIX) -crlf $(DISTDIR)/win/rules.vc
 	cp -p $(TOP_DIR)/win/coffbase.txt $(DISTDIR)/win
-	$(NATIVE_TCLSH) $(TOOL_DIR)/eolFix.tcl -crlf $(DISTDIR)/win/coffbase.txt
+	@$(EOLFIX) -crlf $(DISTDIR)/win/coffbase.txt
 	cp -p $(TOP_DIR)/win/tcl.hpj.in $(DISTDIR)/win
-	$(NATIVE_TCLSH) $(TOOL_DIR)/eolFix.tcl -crlf $(DISTDIR)/win/tcl.hpj.in
+	@$(EOLFIX) -crlf $(DISTDIR)/win/tcl.hpj.in
 	cp -p $(TOP_DIR)/win/tcl.ds* $(DISTDIR)/win
-	$(NATIVE_TCLSH) $(TOOL_DIR)/eolFix.tcl -crlf $(DISTDIR)/win/tcl.ds*
+	@$(EOLFIX) -crlf $(DISTDIR)/win/tcl.ds*
 	cp -p $(TOP_DIR)/win/README $(DISTDIR)/win
 	cp -p $(TOP_DIR)/license.terms $(DISTDIR)/win
-	mkdir $(DISTDIR)/macosx
+	@mkdir $(DISTDIR)/macosx
 	cp -p $(MAC_OSX_DIR)/GNUmakefile $(MAC_OSX_DIR)/README \
 		$(MAC_OSX_DIR)/*.c $(MAC_OSX_DIR)/*.in \
 		$(MAC_OSX_DIR)/*.ac $(MAC_OSX_DIR)/*.xcconfig \
 		$(MAC_OSX_DIR)/configure $(DISTDIR)/macosx
 	cp -p $(TOP_DIR)/license.terms $(DISTDIR)/macosx
-	mkdir $(DISTDIR)/macosx/Tcl.xcode
+	@mkdir $(DISTDIR)/macosx/Tcl.xcode
 	cp -p $(MAC_OSX_DIR)/Tcl.xcode/project.pbxproj \
 		$(MAC_OSX_DIR)/Tcl.xcode/default.pbxuser \
 		$(DISTDIR)/macosx/Tcl.xcode
-	mkdir $(DISTDIR)/macosx/Tcl.xcodeproj
+	@mkdir $(DISTDIR)/macosx/Tcl.xcodeproj
 	cp -p $(MAC_OSX_DIR)/Tcl.xcodeproj/project.pbxproj \
 		$(MAC_OSX_DIR)/Tcl.xcodeproj/default.pbxuser \
 		$(DISTDIR)/macosx/Tcl.xcodeproj
-	mkdir $(DISTDIR)/unix/dltest
+	@mkdir $(DISTDIR)/unix/dltest
 	cp -p $(UNIX_DIR)/dltest/*.c $(UNIX_DIR)/dltest/Makefile.in \
-		$(UNIX_DIR)/dltest/README \
-		$(DISTDIR)/unix/dltest
-	mkdir $(DISTDIR)/tools
+		$(UNIX_DIR)/dltest/README $(DISTDIR)/unix/dltest
+	@mkdir $(DISTDIR)/tools
 	cp -p $(TOOL_DIR)/Makefile.in $(TOOL_DIR)/README \
 		$(TOOL_DIR)/configure $(TOOL_DIR)/configure.in \
 		$(TOOL_DIR)/*.tcl $(TOOL_DIR)/man2tcl.c \
-		$(TOOL_DIR)/tcl.wse.in $(TOOL_DIR)/*.bmp \
-		$(TOOL_DIR)/tcl.hpj.in \
+		$(TOOL_DIR)/*.bmp $(TOOL_DIR)/tcl.hpj.in \
 		$(DISTDIR)/tools
-	$(NATIVE_TCLSH) $(TOOL_DIR)/eolFix.tcl -crlf $(DISTDIR)/tools/tcl.hpj.in \
-		$(DISTDIR)/tools/tcl.wse.in
-	mkdir $(DISTDIR)/libtommath
-	cp -p $(TOMMATH_SRCS) $(TOMMATH_DIR)/*.h \
-		$(DISTDIR)/libtommath
-	mkdir $(DISTDIR)/pkgs
+	@$(EOLFIX) -crlf $(DISTDIR)/tools/tcl.hpj.in
+	@mkdir $(DISTDIR)/libtommath
+	cp -p $(TOMMATH_SRCS) $(TOMMATH_DIR)/*.h $(DISTDIR)/libtommath
+	@mkdir $(DISTDIR)/pkgs
 	cp $(TOP_DIR)/pkgs/README $(DISTDIR)/pkgs
+	cp $(TOP_DIR)/pkgs/package.list.txt $(DISTDIR)/pkgs
 	for i in `ls $(DISTROOT)/pkgs/*.tar.gz 2> /dev/null`; do \
 	    tar -C $(DISTDIR)/pkgs -xzf "$$i"; \
 	done
@@ -2041,21 +2080,29 @@ alldist: dist
 # build of this HTML documentation that has already been placed online. As
 # such, this rule is not guaranteed to work well on all systems; it only needs
 # to function on those of the Tcl/Tk maintainers.
+#
+# Also note that the 8.6 tool build requires an installed 8.6 native Tcl
+# interpreter in order to be able to run.
 #--------------------------------------------------------------------------
 
 html: ${NATIVE_TCLSH}
 	$(BUILD_HTML)
 	@EXTRA_BUILD_HTML@
+
 html-tcl: ${NATIVE_TCLSH}
 	$(BUILD_HTML) --tcl
 	@EXTRA_BUILD_HTML@
+
 html-tk: ${NATIVE_TCLSH}
 	$(BUILD_HTML) --tk
 	@EXTRA_BUILD_HTML@
 
+# You'd better have these programs or you will have problems creating Makefile
+# from Makefile.in in the first place...
+HTML_VERSION = `basename $(TOP_DIR) | sed s/tcl//`
 BUILD_HTML = \
 	@${NATIVE_TCLSH} $(TOOL_DIR)/tcltk-man2html.tcl \
-		--htmldir="$(HTML_INSTALL_DIR)" \
+		--useversion=$(HTML_VERSION) --htmldir="$(HTML_INSTALL_DIR)" \
 		--srcdir=$(TOP_DIR)/.. $(BUILD_HTML_FLAGS)
 
 #--------------------------------------------------------------------------
diff --git a/unix/README b/unix/README
index 87b151a..d8f1090 100644
--- a/unix/README
+++ b/unix/README
@@ -163,6 +163,7 @@ you'll see a much more substantial printout for each error. See the README
 file in the "tests" directory for more information on the test suite. Note:
 don't run the tests as superuser: this will cause several of them to fail. If
 a test is failing consistently, please send us a bug report with as much
-detail as you can manage. Please use the online database at
-	http://tcl.sourceforge.net/
+detail as you can manage to our tracker:
+
+	http://core.tcl.tk/tcl/reportlist
 
diff --git a/unix/configure b/unix/configure
index cbb10b4..0b42510 100755
--- a/unix/configure
+++ b/unix/configure
@@ -1335,9 +1335,12 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 TCL_VERSION=8.6
 TCL_MAJOR_VERSION=8
 TCL_MINOR_VERSION=6
-TCL_PATCH_LEVEL="b3"
+TCL_PATCH_LEVEL=".4"
 VERSION=${TCL_VERSION}
 
+EXTRA_INSTALL_BINARIES=${EXTRA_INSTALL_BINARIES:-"@:"}
+EXTRA_BUILD_HTML=${EXTRA_BUILD_HTML:-"@:"}
+
 #------------------------------------------------------------------------
 # Setup configure arguments for bundled packages
 #------------------------------------------------------------------------
@@ -3329,158 +3332,6 @@ _ACEOF
 fi
 
 
-    if test "${ac_cv_header_limits_h+set}" = set; then
-  echo "$as_me:$LINENO: checking for limits.h" >&5
-echo $ECHO_N "checking for limits.h... $ECHO_C" >&6
-if test "${ac_cv_header_limits_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_limits_h" >&5
-echo "${ECHO_T}$ac_cv_header_limits_h" >&6
-else
-  # Is the header compilable?
-echo "$as_me:$LINENO: checking limits.h usability" >&5
-echo $ECHO_N "checking limits.h usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <limits.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_header_compiler=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_header_compiler=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking limits.h presence" >&5
-echo $ECHO_N "checking limits.h presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <limits.h>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
-  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null; then
-  if test -s conftest.err; then
-    ac_cpp_err=$ac_c_preproc_warn_flag
-    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
-  else
-    ac_cpp_err=
-  fi
-else
-  ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
-  ac_header_preproc=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
-  yes:no: )
-    { echo "$as_me:$LINENO: WARNING: limits.h: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: limits.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: limits.h: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: limits.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { echo "$as_me:$LINENO: WARNING: limits.h: present but cannot be compiled" >&5
-echo "$as_me: WARNING: limits.h: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: limits.h:     check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: limits.h:     check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: limits.h: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: limits.h: see the Autoconf documentation" >&2;}
-    { echo "$as_me:$LINENO: WARNING: limits.h:     section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: limits.h:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { echo "$as_me:$LINENO: WARNING: limits.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: limits.h: proceeding with the preprocessor's result" >&2;}
-    { echo "$as_me:$LINENO: WARNING: limits.h: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: limits.h: in the future, the compiler will take precedence" >&2;}
-    (
-      cat <<\_ASBOX
-## ------------------------------ ##
-## Report this to the tcl lists.  ##
-## ------------------------------ ##
-_ASBOX
-    ) |
-      sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-echo "$as_me:$LINENO: checking for limits.h" >&5
-echo $ECHO_N "checking for limits.h... $ECHO_C" >&6
-if test "${ac_cv_header_limits_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_cv_header_limits_h=$ac_header_preproc
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_limits_h" >&5
-echo "${ECHO_T}$ac_cv_header_limits_h" >&6
-
-fi
-if test $ac_cv_header_limits_h = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIMITS_H 1
-_ACEOF
-
-else
-
-cat >>confdefs.h <<\_ACEOF
-#define NO_LIMITS_H 1
-_ACEOF
-
-fi
-
-
     if test "${ac_cv_header_stdlib_h+set}" = set; then
   echo "$as_me:$LINENO: checking for stdlib.h" >&5
 echo $ECHO_N "checking for stdlib.h... $ECHO_C" >&6
@@ -4821,7 +4672,11 @@ echo "$as_me: WARNING: Don't know how to find pthread lib on your system - you m
 	# Does the pthread-implementation provide
 	# 'pthread_attr_setstacksize' ?
 
-for ac_func in pthread_attr_setstacksize
+	ac_saved_libs=$LIBS
+	LIBS="$LIBS $THREADS_LIBS"
+
+
+for ac_func in pthread_attr_setstacksize pthread_atfork
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -4922,6 +4777,7 @@ _ACEOF
 fi
 done
 
+	LIBS=$ac_saved_libs
     else
 	TCL_THREADS=0
     fi
@@ -6485,80 +6341,6 @@ if test "${tcl_cv_cc_visibility_hidden+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
-	    if test "$SHARED_BUILD" = 1; then
-
-		hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -fvisibility=hidden -Werror"
-		cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-int
-main ()
-{
-#if !defined(__GNUC__) || __GNUC__ < 4
-#error visibility hidden is not supported for this compiler
-#endif
-
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  tcl_cv_cc_visibility_hidden=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-tcl_cv_cc_visibility_hidden=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-		CFLAGS=$hold_cflags
-
-else
-
-		tcl_cv_cc_visibility_hidden=no
-
-fi
-
-
-fi
-echo "$as_me:$LINENO: result: $tcl_cv_cc_visibility_hidden" >&5
-echo "${ECHO_T}$tcl_cv_cc_visibility_hidden" >&6
-    if test $tcl_cv_cc_visibility_hidden = yes; then
-
-	CFLAGS="$CFLAGS -fvisibility=hidden"
-
-cat >>confdefs.h <<\_ACEOF
-#define MODULE_SCOPE extern
-_ACEOF
-
-
-else
-
 	hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
 	cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
@@ -6609,7 +6391,10 @@ fi
 rm -f conftest.err conftest.$ac_objext \
       conftest$ac_exeext conftest.$ac_ext
 	CFLAGS=$hold_cflags
-	if test $tcl_cv_cc_visibility_hidden = yes; then
+fi
+echo "$as_me:$LINENO: result: $tcl_cv_cc_visibility_hidden" >&5
+echo "${ECHO_T}$tcl_cv_cc_visibility_hidden" >&6
+    if test $tcl_cv_cc_visibility_hidden = yes; then
 
 
 cat >>confdefs.h <<\_ACEOF
@@ -6617,7 +6402,9 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-fi
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_HIDDEN 1
+_ACEOF
 
 
 fi
@@ -7063,13 +6850,15 @@ fi
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD='${CC} -shared'
 	    SHLIB_SUFFIX=".dll"
-	    DL_OBJS="tclLoadDl.o tclWinError.o"
+	    DL_OBJS="tclLoadDl.o"
+	    PLAT_OBJS='${CYGWIN_OBJS}'
+	    PLAT_SRCS='${CYGWIN_SRCS}'
 	    DL_LIBS="-ldl"
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    TCL_NEEDS_EXP_FILE=1
 	    TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.dll.a'
-	    TCL_SHLIB_LD_EXTRAS='-Wl,--out-implib,$@.a'
+	    SHLIB_LD_LIBS="${SHLIB_LD_LIBS} -Wl,--out-implib,\$@.a"
 	    echo "$as_me:$LINENO: checking for Cygwin version of gcc" >&5
 echo $ECHO_N "checking for Cygwin version of gcc... $ECHO_C" >&6
 if test "${ac_cv_cygwin+set}" = set; then
@@ -7138,10 +6927,15 @@ echo "$as_me: error: ${CC} is not a cygwin compiler." >&2;}
 echo "$as_me: error: CYGWIN compile is only supported with --enable-threads" >&2;}
    { (exit 1); exit 1; }; }
 	    fi
-	    if test "x${SHARED_BUILD}" = "x1" -a ! -f "../win/tcldde14.dll" -a ! -f "../win/tk86.dll"; then
-		{ { echo "$as_me:$LINENO: error: Please configure and make the ../win directory first." >&5
-echo "$as_me: error: Please configure and make the ../win directory first." >&2;}
-   { (exit 1); exit 1; }; }
+	    do64bit_ok=yes
+	    if test "x${SHARED_BUILD}" = "x1"; then
+		echo "running cd ${TCL_SRC_DIR}/win; ${CONFIG_SHELL-/bin/sh} ./configure $ac_configure_args"
+		# The eval makes quoting arguments work.
+		if cd ${TCL_SRC_DIR}/win; eval ${CONFIG_SHELL-/bin/sh} ./configure $ac_configure_args; cd ../unix
+		then :
+		else
+		    { echo "configure: error: configure failed for ../win" 1>&2; exit 1; }
+		fi
 	    fi
 	    ;;
 	dgux*)
@@ -7577,7 +7371,7 @@ fi
 fi
 
 	    ;;
-	Linux*)
+	Linux*|GNU*|NetBSD-Debian)
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_SUFFIX=".so"
 
@@ -7683,21 +7477,6 @@ fi
 fi
 
 	    ;;
-	GNU*)
-	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_SUFFIX=".so"
-
-	    SHLIB_LD='${CC} -shared'
-	    DL_OBJS=""
-	    DL_LIBS="-ldl"
-	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
-	    CC_SEARCH_FLAGS=""
-	    LD_SEARCH_FLAGS=""
-	    if test "`uname -m`" = "alpha"; then
-  CFLAGS="$CFLAGS -mieee"
-fi
-
-	    ;;
 	Lynx*)
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_SUFFIX=".so"
@@ -7734,74 +7513,25 @@ fi
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
-	NetBSD-1.*|FreeBSD-[1-2].*)
-	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD="ld -Bshareable -x"
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
-	    if test $doRpath = yes; then
-
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
-fi
-
-	    echo "$as_me:$LINENO: checking for ELF" >&5
-echo $ECHO_N "checking for ELF... $ECHO_C" >&6
-if test "${tcl_cv_ld_elf+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-
-		cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#ifdef __ELF__
-	yes
-#endif
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "yes" >/dev/null 2>&1; then
-  tcl_cv_ld_elf=yes
-else
-  tcl_cv_ld_elf=no
-fi
-rm -f conftest*
-
-fi
-echo "$as_me:$LINENO: result: $tcl_cv_ld_elf" >&5
-echo "${ECHO_T}$tcl_cv_ld_elf" >&6
-	    if test $tcl_cv_ld_elf = yes; then
-
-		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
-
-else
-
-		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
-
-fi
-
-
-	    # Ancient FreeBSD doesn't handle version numbers with dots.
-
-	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    TCL_LIB_VERSIONS_OK=nodots
-	    ;;
 	OpenBSD-*)
 	    arch=`arch -s`
 	    case "$arch" in
-	    m88k|vax)
+	    vax)
 		# Equivalent using configure option --disable-load
 		# Step 4 will set the necessary variables
 		DL_OBJS=""
 		SHLIB_LD_LIBS=""
+		LDFLAGS=""
 		;;
 	    *)
-		SHLIB_CFLAGS="-fPIC"
+		case "$arch" in
+		alpha|sparc64)
+		    SHLIB_CFLAGS="-fPIC"
+		    ;;
+		*)
+		    SHLIB_CFLAGS="-fpic"
+		    ;;
+		esac
 		SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
 		SHLIB_SUFFIX=".so"
 		DL_OBJS="tclLoadDl.o"
@@ -7813,10 +7543,11 @@ fi
 
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
+		LDFLAGS="-Wl,-export-dynamic"
 		;;
 	    esac
 	    case "$arch" in
-	    m88k|vax)
+	    vax)
 		CFLAGS_OPTIMIZE="-O1"
 		;;
 	    sh)
@@ -7826,43 +7557,6 @@ fi
 		CFLAGS_OPTIMIZE="-O2"
 		;;
 	    esac
-	    echo "$as_me:$LINENO: checking for ELF" >&5
-echo $ECHO_N "checking for ELF... $ECHO_C" >&6
-if test "${tcl_cv_ld_elf+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-
-		cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#ifdef __ELF__
-	yes
-#endif
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "yes" >/dev/null 2>&1; then
-  tcl_cv_ld_elf=yes
-else
-  tcl_cv_ld_elf=no
-fi
-rm -f conftest*
-
-fi
-echo "$as_me:$LINENO: result: $tcl_cv_ld_elf" >&5
-echo "${ECHO_T}$tcl_cv_ld_elf" >&6
-	    if test $tcl_cv_ld_elf = yes; then
-
-		LDFLAGS=-Wl,-export-dynamic
-
-else
-  LDFLAGS=""
-fi
-
 	    if test "${TCL_THREADS}" = "1"; then
 
 		# On OpenBSD:	Compile with -pthread
@@ -7876,9 +7570,8 @@ fi
 	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
 	    TCL_LIB_VERSIONS_OK=nodots
 	    ;;
-	NetBSD-*|FreeBSD-[3-4].*)
-	    # FreeBSD 3.* and greater have ELF.
-	    # NetBSD 2.* has ELF and can use 'cc -shared' to build shared libs
+	NetBSD-*)
+	    # NetBSD has ELF and can use 'cc -shared' to build shared libs
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
 	    SHLIB_SUFFIX=".so"
@@ -7900,20 +7593,12 @@ fi
 
 fi
 
-	    case $system in
-	    FreeBSD-3.*)
-	    	# FreeBSD-3 doesn't handle version numbers with dots.
-	    	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
-	    	TCL_LIB_VERSIONS_OK=nodots
-		;;
-	    esac
 	    ;;
 	FreeBSD-*)
 	    # This configuration from FreeBSD Ports.
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD="${CC} -shared"
-	    TCL_SHLIB_LD_EXTRAS="-soname \$@"
+	    SHLIB_LD_LIBS="${SHLIB_LD_LIBS} -Wl,-soname,\$@"
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -7921,7 +7606,7 @@ fi
 	    if test $doRpath = yes; then
 
 		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
 fi
 
 	    if test "${TCL_THREADS}" = "1"; then
@@ -7932,11 +7617,15 @@ fi
 		LDFLAGS="$LDFLAGS $PTHREAD_LIBS"
 fi
 
-	    # Version numbers are dot-stripped by system policy.
-	    TCL_TRIM_DOTS=`echo ${VERSION} | tr -d .`
-	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1'
-	    TCL_LIB_VERSIONS_OK=nodots
+	    case $system in
+	    FreeBSD-3.*)
+		# Version numbers are dot-stripped by system policy.
+		TCL_TRIM_DOTS=`echo ${VERSION} | tr -d .`
+		UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
+		TCL_LIB_VERSIONS_OK=nodots
+		;;
+	    esac
 	    ;;
 	Darwin-*)
 	    CFLAGS_OPTIMIZE="-Os"
@@ -8249,7 +7938,6 @@ cat >>confdefs.h <<\_ACEOF
 #define MODULE_SCOPE __private_extern__
 _ACEOF
 
-		tcl_cv_cc_visibility_hidden=yes
 
 fi
 
@@ -9130,11 +8818,6 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
-cat >>confdefs.h <<\_ACEOF
-#define NO_VIZ
-_ACEOF
-
-
 fi
 
 
@@ -9153,7 +8836,7 @@ fi
     if test "${SHARED_BUILD}" = 1 -a "${SHLIB_SUFFIX}" != ""; then
 
         LIB_SUFFIX=${SHARED_LIB_SUFFIX}
-        MAKE_LIB='${SHLIB_LD} -o $@ ${OBJS} ${TCL_SHLIB_LD_EXTRAS} ${SHLIB_LD_LIBS} ${TK_SHLIB_LD_EXTRAS} ${LD_SEARCH_FLAGS}'
+        MAKE_LIB='${SHLIB_LD} -o $@ ${OBJS} ${SHLIB_LD_LIBS} ${TCL_SHLIB_LD_EXTRAS} ${TK_SHLIB_LD_EXTRAS} ${LD_SEARCH_FLAGS}'
         if test "${SHLIB_SUFFIX}" = ".dll"; then
 
             INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(BIN_INSTALL_DIR)/$(LIB_FILE)"'
@@ -9173,15 +8856,14 @@ else
         if test "$RANLIB" = ""; then
 
             MAKE_LIB='$(STLIB_LD) $@ ${OBJS}'
-            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)/$(LIB_FILE)"'
 
 else
 
             MAKE_LIB='${STLIB_LD} $@ ${OBJS} ; ${RANLIB} $@'
-            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)/$(LIB_FILE)" ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(LIB_FILE))'
 
 fi
 
+        INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)/$(LIB_FILE)"'
 
 fi
 
@@ -9190,15 +8872,14 @@ fi
     if test "$RANLIB" = ""; then
 
         MAKE_STUB_LIB='${STLIB_LD} $@ ${STUB_LIB_OBJS}'
-        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)"'
 
 else
 
         MAKE_STUB_LIB='${STLIB_LD} $@ ${STUB_LIB_OBJS} ; ${RANLIB} $@'
-        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)" ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(STUB_LIB_FILE))'
 
 fi
 
+    INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)"'
 
     # Define TCL_LIBS now that we know what DL_LIBS is.
     # The trick here is that we don't want to change the value of TCL_LIBS if
@@ -9869,7 +9550,7 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <sys/types.h>
-#include <sys/dirent.h>
+#include <dirent.h>
 int
 main ()
 {
@@ -13239,14 +12920,16 @@ fi
 fi
 
 #---------------------------------------------------------------------------
-#	Determine which interface to use to talk to the serial port.
-#	Note that #include lines must begin in leftmost column for
-#	some compilers to recognize them as preprocessor directives.
+#	Check for serial port interface.
+#
+#	termios.h is present on all POSIX systems.
+#	sys/ioctl.h is almost always present, though what it contains
+#	is system-specific.
+#	sys/modem.h is needed on HP-UX.
 #---------------------------------------------------------------------------
 
 
-
-for ac_header in sys/modem.h
+for ac_header in termios.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
@@ -13395,310 +13078,305 @@ fi
 
 done
 
-    echo "$as_me:$LINENO: checking termios vs. termio vs. sgtty" >&5
-echo $ECHO_N "checking termios vs. termio vs. sgtty... $ECHO_C" >&6
-if test "${tcl_cv_api_serial+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
 
-    if test "$cross_compiling" = yes; then
-  tcl_cv_api_serial=no
+for ac_header in sys/ioctl.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-
-#include <termios.h>
-
-int main() {
-    struct termios t;
-    if (tcgetattr(0, &t) == 0) {
-	cfsetospeed(&t, 0);
-	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
-	return 0;
-    }
-    return 1;
-}
+$ac_includes_default
+#include <$ac_header>
 _ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
   ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  tcl_cv_api_serial=termios
-else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
-tcl_cv_api_serial=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-    if test $tcl_cv_api_serial = no ; then
-	if test "$cross_compiling" = yes; then
-  tcl_cv_api_serial=no
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#include <termio.h>
-
-int main() {
-    struct termio t;
-    if (ioctl(0, TCGETA, &t) == 0) {
-	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
-	return 0;
-    }
-    return 1;
-}
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  tcl_cv_api_serial=termio
+  ac_header_compiler=yes
 else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
+  echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-( exit $ac_status )
-tcl_cv_api_serial=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+ac_header_compiler=no
 fi
-    fi
-    if test $tcl_cv_api_serial = no ; then
-	if test "$cross_compiling" = yes; then
-  tcl_cv_api_serial=no
-else
-  cat >conftest.$ac_ext <<_ACEOF
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-
-#include <sgtty.h>
-
-int main() {
-    struct sgttyb t;
-    if (ioctl(0, TIOCGETP, &t) == 0) {
-	t.sg_ospeed = 0;
-	t.sg_flags |= ODDP | EVENP | RAW;
-	return 0;
-    }
-    return 1;
-}
+#include <$ac_header>
 _ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  tcl_cv_api_serial=sgtty
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+  else
+    ac_cpp_err=
+  fi
 else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-( exit $ac_status )
-tcl_cv_api_serial=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+  ac_header_preproc=no
 fi
-    fi
-    if test $tcl_cv_api_serial = no ; then
-	if test "$cross_compiling" = yes; then
-  tcl_cv_api_serial=no
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
 
-#include <termios.h>
-#include <errno.h>
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------ ##
+## Report this to the tcl lists.  ##
+## ------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 
-int main() {
-    struct termios t;
-    if (tcgetattr(0, &t) == 0
-	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
-	cfsetospeed(&t, 0);
-	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
-	return 0;
-    }
-    return 1;
-}
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  tcl_cv_api_serial=termios
-else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
 
-( exit $ac_status )
-tcl_cv_api_serial=no
 fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+
+done
+
+
+for ac_header in sys/modem.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 fi
-    fi
-    if test $tcl_cv_api_serial = no; then
-	if test "$cross_compiling" = yes; then
-  tcl_cv_api_serial=no
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-
-#include <termio.h>
-#include <errno.h>
-
-int main() {
-    struct termio t;
-    if (ioctl(0, TCGETA, &t) == 0
-	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
-	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
-	return 0;
-    }
-    return 1;
-    }
+$ac_includes_default
+#include <$ac_header>
 _ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
   ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  tcl_cv_api_serial=termio
+  ac_header_compiler=yes
 else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
+  echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-( exit $ac_status )
-tcl_cv_api_serial=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+ac_header_compiler=no
 fi
-    fi
-    if test $tcl_cv_api_serial = no; then
-	if test "$cross_compiling" = yes; then
-  tcl_cv_api_serial=none
-else
-  cat >conftest.$ac_ext <<_ACEOF
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-
-#include <sgtty.h>
-#include <errno.h>
-
-int main() {
-    struct sgttyb t;
-    if (ioctl(0, TIOCGETP, &t) == 0
-	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
-	t.sg_ospeed = 0;
-	t.sg_flags |= ODDP | EVENP | RAW;
-	return 0;
-    }
-    return 1;
-}
+#include <$ac_header>
 _ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  tcl_cv_api_serial=sgtty
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+  else
+    ac_cpp_err=
+  fi
 else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-( exit $ac_status )
-tcl_cv_api_serial=none
+  ac_header_preproc=no
 fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------ ##
+## Report this to the tcl lists.  ##
+## ------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=\$ac_header_preproc"
 fi
-    fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
 fi
-echo "$as_me:$LINENO: result: $tcl_cv_api_serial" >&5
-echo "${ECHO_T}$tcl_cv_api_serial" >&6
-    case $tcl_cv_api_serial in
-	termios)
-cat >>confdefs.h <<\_ACEOF
-#define USE_TERMIOS 1
-_ACEOF
-;;
-	termio)
-cat >>confdefs.h <<\_ACEOF
-#define USE_TERMIO 1
-_ACEOF
-;;
-	sgtty)
-cat >>confdefs.h <<\_ACEOF
-#define USE_SGTTY 1
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
-;;
-    esac
+
+fi
+
+done
 
 
 #--------------------------------------------------------------------
@@ -14402,11 +14080,7 @@ _ACEOF
 #	lack blkcnt_t.
 #--------------------------------------------------------------------
 
-if test "$ac_cv_cygwin" = "yes"; then
-    if test "x${SHARED_BUILD}" = "x1"; then
-	TCL_SHLIB_LD_EXTRAS="${TCL_SHLIB_LD_EXTRAS} \${COMPAT_DIR}/zlib/win32/zdll.lib"
-    fi
-else
+if test "$ac_cv_cygwin" != "yes"; then
     echo "$as_me:$LINENO: checking for struct stat.st_blocks" >&5
 echo $ECHO_N "checking for struct stat.st_blocks... $ECHO_C" >&6
 if test "${ac_cv_member_struct_stat_st_blocks+set}" = set; then
@@ -18071,108 +17745,6 @@ _ACEOF
 fi
 done
 
-
-for ac_func in pthread_atfork
-do
-as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_func" >&5
-echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
-if eval "test \"\${$as_ac_var+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any gcc2 internal prototype to avoid an error.  */
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* We use char because int might match the return type of a gcc2
-   builtin and then its argument prototype would still apply.  */
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-char (*f) () = $ac_func;
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-int
-main ()
-{
-return f != $ac_func;
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  eval "$as_ac_var=yes"
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-eval "$as_ac_var=no"
-fi
-rm -f conftest.err conftest.$ac_objext \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
-
     fi
 
 cat >>confdefs.h <<\_ACEOF
diff --git a/unix/configure.in b/unix/configure.in
index f4b695d..c7b0edc 100644
--- a/unix/configure.in
+++ b/unix/configure.in
@@ -25,9 +25,12 @@ m4_ifdef([SC_USE_CONFIG_HEADERS], [
 TCL_VERSION=8.6
 TCL_MAJOR_VERSION=8
 TCL_MINOR_VERSION=6
-TCL_PATCH_LEVEL="b3"
+TCL_PATCH_LEVEL=".4"
 VERSION=${TCL_VERSION}
 
+EXTRA_INSTALL_BINARIES=${EXTRA_INSTALL_BINARIES:-"@:"}
+EXTRA_BUILD_HTML=${EXTRA_BUILD_HTML:-"@:"}
+
 #------------------------------------------------------------------------
 # Setup configure arguments for bundled packages
 #------------------------------------------------------------------------
@@ -259,12 +262,17 @@ if test "${TCL_THREADS}" = 1; then
 fi
 
 #---------------------------------------------------------------------------
-#	Determine which interface to use to talk to the serial port.
-#	Note that #include lines must begin in leftmost column for
-#	some compilers to recognize them as preprocessor directives.
+#	Check for serial port interface.
+#
+#	termios.h is present on all POSIX systems.
+#	sys/ioctl.h is almost always present, though what it contains
+#	is system-specific.
+#	sys/modem.h is needed on HP-UX.
 #---------------------------------------------------------------------------
 
-SC_SERIAL_PORT
+AC_CHECK_HEADERS(termios.h)
+AC_CHECK_HEADERS(sys/ioctl.h)
+AC_CHECK_HEADERS(sys/modem.h)
 
 #--------------------------------------------------------------------
 #	Include sys/select.h if it exists and if it supplies things
@@ -305,11 +313,7 @@ SC_TIME_HANDLER
 #	lack blkcnt_t.
 #--------------------------------------------------------------------
 
-if test "$ac_cv_cygwin" = "yes"; then
-    if test "x${SHARED_BUILD}" = "x1"; then
-	TCL_SHLIB_LD_EXTRAS="${TCL_SHLIB_LD_EXTRAS} \${COMPAT_DIR}/zlib/win32/zdll.lib"
-    fi
-else
+if test "$ac_cv_cygwin" != "yes"; then
     AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
 fi
 AC_CHECK_TYPES([blkcnt_t])
@@ -575,7 +579,6 @@ if test "`uname -s`" = "Darwin" ; then
     if test $tcl_corefoundation = yes; then
 	AC_CHECK_HEADERS(libkern/OSAtomic.h)
 	AC_CHECK_FUNCS(OSSpinLockLock)
-	AC_CHECK_FUNCS(pthread_atfork)
     fi
     AC_DEFINE(USE_VFORK, 1, [Should we use vfork() instead of fork()?])
     AC_DEFINE(TCL_DEFAULT_ENCODING, "utf-8",
diff --git a/unix/dltest/Makefile.in b/unix/dltest/Makefile.in
index 01589d9..25b9376 100644
--- a/unix/dltest/Makefile.in
+++ b/unix/dltest/Makefile.in
@@ -22,14 +22,14 @@ LDFLAGS_DEBUG		= @LDFLAGS_DEBUG@
 LDFLAGS_OPTIMIZE	= @LDFLAGS_OPTIMIZE@
 LDFLAGS			= @LDFLAGS_DEFAULT@ @LDFLAGS@
 
-CC_SWITCHES = $(CFLAGS) -I${SRC_DIR}/../../generic -I${BUILD_DIR}/.. -DTCL_MEM_DEBUG \
+CC_SWITCHES = $(CFLAGS) -I${SRC_DIR}/../../generic -DTCL_MEM_DEBUG \
 	${SHLIB_CFLAGS} -DUSE_TCL_STUBS ${AC_FLAGS}
 
-all: pkga${SHLIB_SUFFIX} pkgb${SHLIB_SUFFIX} pkgc${SHLIB_SUFFIX} pkgd${SHLIB_SUFFIX} pkge${SHLIB_SUFFIX} pkgua${SHLIB_SUFFIX}
+all: pkga${SHLIB_SUFFIX} pkgb${SHLIB_SUFFIX} pkgc${SHLIB_SUFFIX} pkgd${SHLIB_SUFFIX} pkge${SHLIB_SUFFIX} pkgua${SHLIB_SUFFIX} pkgooa${SHLIB_SUFFIX}
 	@if test -n "$(DLTEST_SUFFIX)"; then $(MAKE) dltest_suffix; fi
 	@touch ../dltest.marker
 
-dltest_suffix: pkga${DLTEST_SUFFIX} pkgb${DLTEST_SUFFIX} pkgc${DLTEST_SUFFIX} pkgd${DLTEST_SUFFIX} pkge${DLTEST_SUFFIX} pkgua${DLTEST_SUFFIX}
+dltest_suffix: pkga${DLTEST_SUFFIX} pkgb${DLTEST_SUFFIX} pkgc${DLTEST_SUFFIX} pkgd${DLTEST_SUFFIX} pkge${DLTEST_SUFFIX} pkgua${DLTEST_SUFFIX} pkgooa${DLTEST_SUFFIX}
 	@touch ../dltest.marker
 
 pkga.o: $(SRC_DIR)/pkga.c
@@ -50,6 +50,9 @@ pkge.o: $(SRC_DIR)/pkge.c
 pkgua.o: $(SRC_DIR)/pkgua.c
 	$(CC) -c $(CC_SWITCHES) $(SRC_DIR)/pkgua.c
 
+pkgooa.o: $(SRC_DIR)/pkgooa.c
+	$(CC) -c $(CC_SWITCHES) $(SRC_DIR)/pkgooa.c
+
 pkga${SHLIB_SUFFIX}: pkga.o
 	${SHLIB_LD} -o pkga${SHLIB_SUFFIX} pkga.o ${SHLIB_LD_LIBS}
 
@@ -68,6 +71,9 @@ pkge${SHLIB_SUFFIX}: pkge.o
 pkgua${SHLIB_SUFFIX}: pkgua.o
 	${SHLIB_LD} -o pkgua${SHLIB_SUFFIX} pkgua.o ${SHLIB_LD_LIBS}
 
+pkgooa${SHLIB_SUFFIX}: pkgooa.o
+	${SHLIB_LD} -o pkgooa${SHLIB_SUFFIX} pkgooa.o ${SHLIB_LD_LIBS}
+
 pkga${DLTEST_SUFFIX}: pkga.o
 	${DLTEST_LD} -o pkga${DLTEST_SUFFIX} pkga.o ${SHLIB_LD_LIBS}
 
@@ -86,6 +92,9 @@ pkge${DLTEST_SUFFIX}: pkge.o
 pkgua${DLTEST_SUFFIX}: pkgua.o
 	${DLTEST_LD} -o pkgua${DLTEST_SUFFIX} pkgua.o ${SHLIB_LD_LIBS}
 
+pkgooa${DLTEST_SUFFIX}: pkgooa.o
+	${DLTEST_LD} -o pkgooa${DLTEST_SUFFIX} pkgooa.o ${SHLIB_LD_LIBS}
+
 clean:
 	rm -f *.o lib.exp ../dltest.marker
 	@if test "$(SHLIB_SUFFIX)" != ""; then \
diff --git a/unix/dltest/pkgb.c b/unix/dltest/pkgb.c
index fe0d365..f102496 100644
--- a/unix/dltest/pkgb.c
+++ b/unix/dltest/pkgb.c
@@ -15,14 +15,6 @@
 #include "tcl.h"
 
 /*
- * TCL_STORAGE_CLASS is set unconditionally to DLLEXPORT because the
- * Pkgb_Init declaration is in the source file itself, which is only
- * accessed when we are building a library.
- */
-#undef TCL_STORAGE_CLASS
-#define TCL_STORAGE_CLASS DLLEXPORT
-
-/*
  * Prototypes for procedures defined later in this file:
  */
 
@@ -30,6 +22,8 @@ static int    Pkgb_SubObjCmd(ClientData clientData,
 		Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]);
 static int    Pkgb_UnsafeObjCmd(ClientData clientData,
 		Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]);
+static int    Pkgb_DemoObjCmd(ClientData clientData,
+		Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]);
 
 /*
  *----------------------------------------------------------------------
@@ -48,6 +42,10 @@ static int    Pkgb_UnsafeObjCmd(ClientData clientData,
  *----------------------------------------------------------------------
  */
 
+#ifndef Tcl_GetErrorLine
+#   define Tcl_GetErrorLine(interp) ((interp)->errorLine)
+#endif
+
 static int
 Pkgb_SubObjCmd(
     ClientData dummy,		/* Not used. */
@@ -63,6 +61,9 @@ Pkgb_SubObjCmd(
     }
     if ((Tcl_GetIntFromObj(interp, objv[1], &first) != TCL_OK)
 	    || (Tcl_GetIntFromObj(interp, objv[2], &second) != TCL_OK)) {
+	char buf[TCL_INTEGER_SPACE];
+	sprintf(buf, "%d", Tcl_GetErrorLine(interp));
+	Tcl_AppendResult(interp, " in line: ", buf, NULL);
 	return TCL_ERROR;
     }
     Tcl_SetObjResult(interp, Tcl_NewIntObj(first - second));
@@ -93,7 +94,26 @@ Pkgb_UnsafeObjCmd(
     int objc,			/* Number of arguments. */
     Tcl_Obj *const objv[])	/* Argument objects. */
 {
-    Tcl_SetObjResult(interp, Tcl_NewStringObj("unsafe command invoked", -1));
+    return Tcl_EvalEx(interp, "list unsafe command invoked", -1, TCL_EVAL_GLOBAL);
+}
+
+static int
+Pkgb_DemoObjCmd(
+    ClientData dummy,		/* Not used. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+#if (TCL_MAJOR_VERSION > 8) || (TCL_MINOR_VERSION > 4)
+    Tcl_Obj *first;
+
+    if (Tcl_ListObjIndex(NULL, Tcl_GetEncodingSearchPath(), 0, &first)
+	    == TCL_OK) {
+	Tcl_SetObjResult(interp, first);
+    }
+#else
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(Tcl_GetDefaultEncodingDir(), -1));
+#endif
     return TCL_OK;
 }
 
@@ -114,14 +134,14 @@ Pkgb_UnsafeObjCmd(
  *----------------------------------------------------------------------
  */
 
-EXTERN int
+DLLEXPORT int
 Pkgb_Init(
     Tcl_Interp *interp)		/* Interpreter in which the package is to be
 				 * made available. */
 {
     int code;
 
-    if (Tcl_InitStubs(interp, TCL_VERSION, 0) == NULL) {
+    if (Tcl_InitStubs(interp, "8.5-", 0) == NULL) {
 	return TCL_ERROR;
     }
     code = Tcl_PkgProvide(interp, "Pkgb", "2.3");
@@ -129,8 +149,8 @@ Pkgb_Init(
 	return code;
     }
     Tcl_CreateObjCommand(interp, "pkgb_sub", Pkgb_SubObjCmd, NULL, NULL);
-    Tcl_CreateObjCommand(interp, "pkgb_unsafe", Pkgb_UnsafeObjCmd, NULL,
-	    NULL);
+    Tcl_CreateObjCommand(interp, "pkgb_unsafe", Pkgb_UnsafeObjCmd, NULL, NULL);
+    Tcl_CreateObjCommand(interp, "pkgb_demo", Pkgb_DemoObjCmd, NULL, NULL);
     return TCL_OK;
 }
 
@@ -151,14 +171,14 @@ Pkgb_Init(
  *----------------------------------------------------------------------
  */
 
-EXTERN int
+DLLEXPORT int
 Pkgb_SafeInit(
     Tcl_Interp *interp)		/* Interpreter in which the package is to be
 				 * made available. */
 {
     int code;
 
-    if (Tcl_InitStubs(interp, TCL_VERSION, 0) == NULL) {
+    if (Tcl_InitStubs(interp, "8.5-", 0) == NULL) {
 	return TCL_ERROR;
     }
     code = Tcl_PkgProvide(interp, "Pkgb", "2.3");
diff --git a/unix/dltest/pkgooa.c b/unix/dltest/pkgooa.c
new file mode 100644
index 0000000..78af376
--- /dev/null
+++ b/unix/dltest/pkgooa.c
@@ -0,0 +1,141 @@
+/*
+ * pkgooa.c --
+ *
+ *	This file contains a simple Tcl package "pkgooa" that is intended for
+ *	testing the Tcl dynamic loading facilities.
+ *
+ * Copyright (c) 1995 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#undef STATIC_BUILD
+#include "tclOO.h"
+#include <string.h>
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Pkgooa_StubsOKObjCmd --
+ *
+ *	This procedure is invoked to process the "pkgooa_stubsok" Tcl command.
+ *	It gives 1 if stubs are used correctly, 0 if stubs are not OK.
+ *
+ * Results:
+ *	A standard Tcl result.
+ *
+ * Side effects:
+ *	See the user documentation.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+Pkgooa_StubsOKObjCmd(
+    ClientData dummy,		/* Not used. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    if (objc != 1) {
+	Tcl_WrongNumArgs(interp, 1, objv, "");
+	return TCL_ERROR;
+    }
+    Tcl_SetObjResult(interp, Tcl_NewIntObj(
+	    Tcl_CopyObjectInstance == tclOOStubsPtr->tcl_CopyObjectInstance));
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Pkgooa_Init --
+ *
+ *	This is a package initialization procedure, which is called by Tcl
+ *	when this package is to be added to an interpreter.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+extern void *tclOOIntStubsPtr;
+
+static TclOOStubs stubsCopy = {
+    TCL_STUB_MAGIC,
+    NULL,
+    /* It doesn't really matter what implementation of
+     * Tcl_CopyObjectInstance is put in the "pseudo"
+     * stub table, since the test-case never actually
+     * calls this function. All that matters is that it's
+     * a function with a different memory address than
+     * the real Tcl_CopyObjectInstance function in Tcl. */
+    (Tcl_Object (*) (Tcl_Interp *, Tcl_Object, const char *,
+	    const char *t)) Pkgooa_StubsOKObjCmd
+    /* More entries could be here, but those are not used
+     * for this test-case. So, being NULL is OK. */
+};
+
+extern DLLEXPORT int
+Pkgooa_Init(
+    Tcl_Interp *interp)		/* Interpreter in which the package is to be
+				 * made available. */
+{
+    int code;
+
+    /* Any TclOO extension which uses stubs, calls
+     * both Tcl_InitStubs and Tcl_OOInitStubs() and
+     * does not use any Tcl 8.6 features should be
+     * loadable in Tcl 8.5 as well, provided the
+     * TclOO extension (for Tcl 8.5) is installed.
+     * This worked in Tcl 8.6.0, and is expected
+     * to keep working in all future Tcl 8.x releases.
+     */
+    if (Tcl_InitStubs(interp, "8.5", 0) == NULL) {
+	return TCL_ERROR;
+    }
+    if (tclStubsPtr == NULL) {
+	Tcl_AppendResult(interp, "Tcl stubs are not inialized, "
+		"did you compile using -DUSE_TCL_STUBS? ");
+	return TCL_ERROR;
+    }
+    if (Tcl_OOInitStubs(interp) == NULL) {
+	return TCL_ERROR;
+    }
+    if (tclOOStubsPtr == NULL) {
+	Tcl_AppendResult(interp, "TclOO stubs are not inialized");
+	return TCL_ERROR;
+    }
+    if (tclOOIntStubsPtr == NULL) {
+	Tcl_AppendResult(interp, "TclOO internal stubs are not inialized");
+	return TCL_ERROR;
+    }
+
+    /* Test case for Bug [f51efe99a7].
+     *
+     * Let tclOOStubsPtr point to an alternate stub table
+     * (with only a single function, that's enough for
+     * this test). This way, the function "pkgooa_stubsok"
+     * can check whether the TclOO function calls really
+     * use the stub table, or only pretend to.
+     *
+     * On platforms without backlinking (Windows, Cygwin,
+     * AIX), this code doesn't even compile without using
+     * stubs, but on UNIX ELF systems, the problem is
+     * less visible.
+     */
+
+    tclOOStubsPtr = &stubsCopy;
+
+    code = Tcl_PkgProvide(interp, "Pkgooa", "1.0");
+    if (code != TCL_OK) {
+	return code;
+    }
+    Tcl_CreateObjCommand(interp, "pkgooa_stubsok", Pkgooa_StubsOKObjCmd, NULL, NULL);
+    return TCL_OK;
+}
diff --git a/unix/ldAix b/unix/ldAix
index 51b2995..f115ea8 100755
--- a/unix/ldAix
+++ b/unix/ldAix
@@ -1,5 +1,5 @@
 #!/bin/sh
-# 
+#
 # ldAix ldCmd ldArg ldArg ...
 #
 # This shell script provides a wrapper for ld under AIX in order to
@@ -40,8 +40,8 @@ rm -f lib.exp
 echo "#! $outputFile" >lib.exp
 /usr/ccs/bin/nm $nmopts $ofiles | sed -e '/:$/d' -e '/ U /d' -e 's/^\.//' -e 's/[ 	|].*//' | sort | uniq >>lib.exp
 
-# If we're linking a .a file, then link all the objects together into a 
-# single file "shr.o" and then put that into the archive.  Otherwise link 
+# If we're linking a .a file, then link all the objects together into a
+# single file "shr.o" and then put that into the archive.  Otherwise link
 # the object files directly into the .a file.
 
 noDotA=`echo $outputFile | sed -e '/\.a$/d'`
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index b13fddd..67c442c 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -111,9 +111,9 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
 			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
 			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
 		    if test -f "$i/unix/tclConfig.sh" ; then
-		    ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
-		    break
-		fi
+			ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
+			break
+		    fi
 		done
 	    fi
 	])
@@ -271,11 +271,10 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 #
 # Results:
 #
-#	Subst the following vars:
+#	Substitutes the following vars:
 #		TCL_BIN_DIR
 #		TCL_SRC_DIR
 #		TCL_LIB_FILE
-#
 #------------------------------------------------------------------------
 
 AC_DEFUN([SC_LOAD_TCLCONFIG], [
@@ -439,11 +438,11 @@ AC_DEFUN([SC_LOAD_TKCONFIG], [
 #	extension can't assume that an executable Tcl shell exists at
 #	build time.
 #
-# Arguments
+# Arguments:
 #	none
 #
-# Results
-#	Subst's the following values:
+# Results:
+#	Substitutes the following vars:
 #		TCLSH_PROG
 #------------------------------------------------------------------------
 
@@ -484,11 +483,11 @@ AC_DEFUN([SC_PROG_TCLSH], [
 #	when running tests from an extension build directory. It is not
 #	correct to use the TCLSH_PROG in cases like this.
 #
-# Arguments
+# Arguments:
 #	none
 #
-# Results
-#	Subst's the following values:
+# Results:
+#	Substitutes the following values:
 #		BUILD_TCLSH
 #------------------------------------------------------------------------
 
@@ -676,7 +675,11 @@ AC_DEFUN([SC_ENABLE_THREADS], [
 
 	# Does the pthread-implementation provide
 	# 'pthread_attr_setstacksize' ?
-	AC_CHECK_FUNCS(pthread_attr_setstacksize)
+
+	ac_saved_libs=$LIBS
+	LIBS="$LIBS $THREADS_LIBS"
+	AC_CHECK_FUNCS(pthread_attr_setstacksize pthread_atfork)
+	LIBS=$ac_saved_libs
     else
 	TCL_THREADS=0
     fi
@@ -786,7 +789,6 @@ AC_DEFUN([SC_ENABLE_SYMBOLS], [
 #
 #	Defines the following vars:
 #		HAVE_LANGINFO	Triggers use of nl_langinfo if defined.
-#
 #------------------------------------------------------------------------
 
 AC_DEFUN([SC_ENABLE_LANGINFO], [
@@ -1041,33 +1043,17 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 
     AC_CACHE_CHECK([if compiler supports visibility "hidden"],
 	tcl_cv_cc_visibility_hidden, [
-	    AS_IF([test "$SHARED_BUILD" = 1], [
-		hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -fvisibility=hidden -Werror"
-		AC_TRY_COMPILE(,[#if !defined(__GNUC__) || __GNUC__ < 4
-#error visibility hidden is not supported for this compiler
-#endif
-		], tcl_cv_cc_visibility_hidden=yes,
-		    tcl_cv_cc_visibility_hidden=no)
-		CFLAGS=$hold_cflags
-	    ], [
-		tcl_cv_cc_visibility_hidden=no
-	    ])
-    ])
-    AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
-	CFLAGS="$CFLAGS -fvisibility=hidden"
-	AC_DEFINE(MODULE_SCOPE, [extern], [No need to mark inidividual symbols as hidden])
-    ], [
 	hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
 	AC_TRY_LINK([
 	    extern __attribute__((__visibility__("hidden"))) void f(void);
 	    void f(void) {}], [f();], tcl_cv_cc_visibility_hidden=yes,
 	    tcl_cv_cc_visibility_hidden=no)
-	CFLAGS=$hold_cflags
-	AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
-	    AC_DEFINE(MODULE_SCOPE,
-		[extern __attribute__((__visibility__("hidden")))],
-		[Compiler support for module scope symbols])
-	])
+	CFLAGS=$hold_cflags])
+    AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
+	AC_DEFINE(MODULE_SCOPE,
+	    [extern __attribute__((__visibility__("hidden")))],
+	    [Compiler support for module scope symbols])
+	AC_DEFINE(HAVE_HIDDEN, [1], [Compiler support for module scope symbols])
     ])
 
     # Step 0.d: Disable -rpath support?
@@ -1223,13 +1209,15 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD='${CC} -shared'
 	    SHLIB_SUFFIX=".dll"
-	    DL_OBJS="tclLoadDl.o tclWinError.o"
+	    DL_OBJS="tclLoadDl.o"
+	    PLAT_OBJS='${CYGWIN_OBJS}'
+	    PLAT_SRCS='${CYGWIN_SRCS}'
 	    DL_LIBS="-ldl"
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    TCL_NEEDS_EXP_FILE=1
 	    TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.dll.a'
-	    TCL_SHLIB_LD_EXTRAS='-Wl,--out-implib,$[@].a'
+	    SHLIB_LD_LIBS="${SHLIB_LD_LIBS} -Wl,--out-implib,\$[@].a"
 	    AC_CACHE_CHECK(for Cygwin version of gcc,
 		ac_cv_cygwin,
 		AC_TRY_COMPILE([
@@ -1246,8 +1234,15 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    if test "x${TCL_THREADS}" = "x0"; then
 		AC_MSG_ERROR([CYGWIN compile is only supported with --enable-threads])
 	    fi
-	    if test "x${SHARED_BUILD}" = "x1" -a ! -f "../win/tcldde14.dll" -a ! -f "../win/tk86.dll"; then
-		AC_MSG_ERROR([Please configure and make the ../win directory first.])
+	    do64bit_ok=yes
+	    if test "x${SHARED_BUILD}" = "x1"; then
+		echo "running cd ${TCL_SRC_DIR}/win; ${CONFIG_SHELL-/bin/sh} ./configure $ac_configure_args"
+		# The eval makes quoting arguments work.
+		if cd ${TCL_SRC_DIR}/win; eval ${CONFIG_SHELL-/bin/sh} ./configure $ac_configure_args; cd ../unix
+		then :
+		else
+		    { echo "configure: error: configure failed for ../win" 1>&2; exit 1; }
+		fi
 	    fi
 	    ;;
 	dgux*)
@@ -1398,7 +1393,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	        ])
 	    ])
 	    ;;
-	Linux*)
+	Linux*|GNU*|NetBSD-Debian)
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_SUFFIX=".so"
 
@@ -1436,18 +1431,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 
 	    AS_IF([test x"${USE_COMPAT}" != x],[CFLAGS="$CFLAGS -fno-inline"])
 	    ;;
-	GNU*)
-	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_SUFFIX=".so"
-
-	    SHLIB_LD='${CC} -shared'
-	    DL_OBJS=""
-	    DL_LIBS="-ldl"
-	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
-	    CC_SEARCH_FLAGS=""
-	    LD_SEARCH_FLAGS=""
-	    AS_IF([test "`uname -m`" = "alpha"], [CFLAGS="$CFLAGS -mieee"])
-	    ;;
 	Lynx*)
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_SUFFIX=".so"
@@ -1481,43 +1464,25 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
-	NetBSD-1.*|FreeBSD-[[1-2]].*)
-	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD="ld -Bshareable -x"
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
-	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
-	    AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
-		AC_EGREP_CPP(yes, [
-#ifdef __ELF__
-	yes
-#endif
-		], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
-	    AS_IF([test $tcl_cv_ld_elf = yes], [
-		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
-	    ], [
-		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
-	    ])
-
-	    # Ancient FreeBSD doesn't handle version numbers with dots.
-
-	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    TCL_LIB_VERSIONS_OK=nodots
-	    ;;
 	OpenBSD-*)
 	    arch=`arch -s`
 	    case "$arch" in
-	    m88k|vax)
+	    vax)
 		# Equivalent using configure option --disable-load
 		# Step 4 will set the necessary variables
 		DL_OBJS=""
 		SHLIB_LD_LIBS=""
+		LDFLAGS=""
 		;;
 	    *)
-		SHLIB_CFLAGS="-fPIC"
+		case "$arch" in
+		alpha|sparc64)
+		    SHLIB_CFLAGS="-fPIC"
+		    ;;
+		*)
+		    SHLIB_CFLAGS="-fpic"
+		    ;;
+		esac
 		SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
 		SHLIB_SUFFIX=".so"
 		DL_OBJS="tclLoadDl.o"
@@ -1526,10 +1491,11 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 		    CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
+		LDFLAGS="-Wl,-export-dynamic"
 		;;
 	    esac
 	    case "$arch" in
-	    m88k|vax)
+	    vax)
 		CFLAGS_OPTIMIZE="-O1"
 		;;
 	    sh)
@@ -1539,15 +1505,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 		CFLAGS_OPTIMIZE="-O2"
 		;;
 	    esac
-	    AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
-		AC_EGREP_CPP(yes, [
-#ifdef __ELF__
-	yes
-#endif
-		], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
-	    AS_IF([test $tcl_cv_ld_elf = yes], [
-		LDFLAGS=-Wl,-export-dynamic
-	    ], [LDFLAGS=""])
 	    AS_IF([test "${TCL_THREADS}" = "1"], [
 		# On OpenBSD:	Compile with -pthread
 		#		Don't link with -lpthread
@@ -1558,9 +1515,8 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
 	    TCL_LIB_VERSIONS_OK=nodots
 	    ;;
-	NetBSD-*|FreeBSD-[[3-4]].*)
-	    # FreeBSD 3.* and greater have ELF.
-	    # NetBSD 2.* has ELF and can use 'cc -shared' to build shared libs
+	NetBSD-*)
+	    # NetBSD has ELF and can use 'cc -shared' to build shared libs
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
 	    SHLIB_SUFFIX=".so"
@@ -1576,37 +1532,33 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 		CFLAGS="$CFLAGS -pthread"
 	    	LDFLAGS="$LDFLAGS -pthread"
 	    ])
-	    case $system in
-	    FreeBSD-3.*)
-	    	# FreeBSD-3 doesn't handle version numbers with dots.
-	    	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
-	    	TCL_LIB_VERSIONS_OK=nodots
-		;;
-	    esac
 	    ;;
 	FreeBSD-*)
 	    # This configuration from FreeBSD Ports.
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD="${CC} -shared"
-	    TCL_SHLIB_LD_EXTRAS="-soname \$[@]"
+	    SHLIB_LD_LIBS="${SHLIB_LD_LIBS} -Wl,-soname,\$[@]"
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
 	    LDFLAGS=""
 	    AS_IF([test $doRpath = yes], [
 		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
 	    AS_IF([test "${TCL_THREADS}" = "1"], [
 		# The -pthread needs to go in the LDFLAGS, not LIBS
 		LIBS=`echo $LIBS | sed s/-pthread//`
 		CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
 		LDFLAGS="$LDFLAGS $PTHREAD_LIBS"])
-	    # Version numbers are dot-stripped by system policy.
-	    TCL_TRIM_DOTS=`echo ${VERSION} | tr -d .`
-	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1'
-	    TCL_LIB_VERSIONS_OK=nodots
+	    case $system in
+	    FreeBSD-3.*)
+		# Version numbers are dot-stripped by system policy.
+		TCL_TRIM_DOTS=`echo ${VERSION} | tr -d .`
+		UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
+		TCL_LIB_VERSIONS_OK=nodots
+		;;
+	    esac
 	    ;;
 	Darwin-*)
 	    CFLAGS_OPTIMIZE="-Os"
@@ -1685,7 +1637,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    AS_IF([test "$tcl_cv_cc_visibility_hidden" != yes], [
 		AC_DEFINE(MODULE_SCOPE, [__private_extern__],
 		    [Compiler support for module scope symbols])
-		tcl_cv_cc_visibility_hidden=yes
 	    ])
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
@@ -2087,7 +2038,6 @@ dnl # preprocessing tests use only CPPFLAGS.
     AS_IF([test "$tcl_cv_cc_visibility_hidden" != yes], [
 	AC_DEFINE(MODULE_SCOPE, [extern],
 	    [No Compiler support for module scope symbols])
-	AC_DEFINE(NO_VIZ, [], [No visibility attribute])
     ])
 
     AS_IF([test "$SHARED_LIB_SUFFIX" = ""], [
@@ -2098,7 +2048,7 @@ dnl # preprocessing tests use only CPPFLAGS.
 
     AS_IF([test "${SHARED_BUILD}" = 1 -a "${SHLIB_SUFFIX}" != ""], [
         LIB_SUFFIX=${SHARED_LIB_SUFFIX}
-        MAKE_LIB='${SHLIB_LD} -o [$]@ ${OBJS} ${TCL_SHLIB_LD_EXTRAS} ${SHLIB_LD_LIBS} ${TK_SHLIB_LD_EXTRAS} ${LD_SEARCH_FLAGS}'
+        MAKE_LIB='${SHLIB_LD} -o [$]@ ${OBJS} ${SHLIB_LD_LIBS} ${TCL_SHLIB_LD_EXTRAS} ${TK_SHLIB_LD_EXTRAS} ${LD_SEARCH_FLAGS}'
         AS_IF([test "${SHLIB_SUFFIX}" = ".dll"], [
             INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(BIN_INSTALL_DIR)/$(LIB_FILE)"'
             DLL_INSTALL_DIR="\$(BIN_INSTALL_DIR)"
@@ -2110,21 +2060,19 @@ dnl # preprocessing tests use only CPPFLAGS.
 
         AS_IF([test "$RANLIB" = ""], [
             MAKE_LIB='$(STLIB_LD) [$]@ ${OBJS}'
-            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)/$(LIB_FILE)"'
         ], [
             MAKE_LIB='${STLIB_LD} [$]@ ${OBJS} ; ${RANLIB} [$]@'
-            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)/$(LIB_FILE)" ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(LIB_FILE))'
         ])
+        INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)/$(LIB_FILE)"'
     ])
 
     # Stub lib does not depend on shared/static configuration
     AS_IF([test "$RANLIB" = ""], [
         MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS}'
-        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)"'
     ], [
         MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS} ; ${RANLIB} [$]@'
-        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)" ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(STUB_LIB_FILE))'
     ])
+    INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)"'
 
     # Define TCL_LIBS now that we know what DL_LIBS is.
     # The trick here is that we don't want to change the value of TCL_LIBS if
@@ -2191,124 +2139,6 @@ dnl # preprocessing tests use only CPPFLAGS.
 ])
 
 #--------------------------------------------------------------------
-# SC_SERIAL_PORT
-#
-#	Determine which interface to use to talk to the serial port.
-#	Note that #include lines must begin in leftmost column for
-#	some compilers to recognize them as preprocessor directives,
-#	and some build environments have stdin not pointing at a
-#	pseudo-terminal (usually /dev/null instead.)
-#
-# Arguments:
-#	none
-#
-# Results:
-#
-#	Defines only one of the following vars:
-#		HAVE_SYS_MODEM_H
-#		USE_TERMIOS
-#		USE_TERMIO
-#		USE_SGTTY
-#
-#--------------------------------------------------------------------
-
-AC_DEFUN([SC_SERIAL_PORT], [
-    AC_CHECK_HEADERS(sys/modem.h)
-    AC_CACHE_CHECK([termios vs. termio vs. sgtty], tcl_cv_api_serial, [
-    AC_TRY_RUN([
-#include <termios.h>
-
-int main() {
-    struct termios t;
-    if (tcgetattr(0, &t) == 0) {
-	cfsetospeed(&t, 0);
-	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
-	return 0;
-    }
-    return 1;
-}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
-    if test $tcl_cv_api_serial = no ; then
-	AC_TRY_RUN([
-#include <termio.h>
-
-int main() {
-    struct termio t;
-    if (ioctl(0, TCGETA, &t) == 0) {
-	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
-	return 0;
-    }
-    return 1;
-}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
-    fi
-    if test $tcl_cv_api_serial = no ; then
-	AC_TRY_RUN([
-#include <sgtty.h>
-
-int main() {
-    struct sgttyb t;
-    if (ioctl(0, TIOCGETP, &t) == 0) {
-	t.sg_ospeed = 0;
-	t.sg_flags |= ODDP | EVENP | RAW;
-	return 0;
-    }
-    return 1;
-}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
-    fi
-    if test $tcl_cv_api_serial = no ; then
-	AC_TRY_RUN([
-#include <termios.h>
-#include <errno.h>
-
-int main() {
-    struct termios t;
-    if (tcgetattr(0, &t) == 0
-	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
-	cfsetospeed(&t, 0);
-	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
-	return 0;
-    }
-    return 1;
-}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
-    fi
-    if test $tcl_cv_api_serial = no; then
-	AC_TRY_RUN([
-#include <termio.h>
-#include <errno.h>
-
-int main() {
-    struct termio t;
-    if (ioctl(0, TCGETA, &t) == 0
-	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
-	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
-	return 0;
-    }
-    return 1;
-    }], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
-    fi
-    if test $tcl_cv_api_serial = no; then
-	AC_TRY_RUN([
-#include <sgtty.h>
-#include <errno.h>
-
-int main() {
-    struct sgttyb t;
-    if (ioctl(0, TIOCGETP, &t) == 0
-	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
-	t.sg_ospeed = 0;
-	t.sg_flags |= ODDP | EVENP | RAW;
-	return 0;
-    }
-    return 1;
-}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
-    fi])
-    case $tcl_cv_api_serial in
-	termios) AC_DEFINE(USE_TERMIOS, 1, [Use the termios API for serial lines]);;
-	termio)  AC_DEFINE(USE_TERMIO, 1, [Use the termio API for serial lines]);;
-	sgtty)   AC_DEFINE(USE_SGTTY, 1, [Use the sgtty API for serial lines]);;
-    esac
-])
-
-#--------------------------------------------------------------------
 # SC_MISSING_POSIX_HEADERS
 #
 #	Supply substitutes for missing POSIX header files.  Special
@@ -2326,7 +2156,6 @@ int main() {
 #	Defines some of the following vars:
 #		NO_DIRENT_H
 #		NO_VALUES_H
-#		HAVE_LIMITS_H or NO_LIMITS_H
 #		NO_STDLIB_H
 #		NO_STRING_H
 #		NO_SYS_WAIT_H
@@ -2366,9 +2195,6 @@ closedir(d);
 
     AC_CHECK_HEADER(float.h, , [AC_DEFINE(NO_FLOAT_H, 1, [Do we have <float.h>?])])
     AC_CHECK_HEADER(values.h, , [AC_DEFINE(NO_VALUES_H, 1, [Do we have <values.h>?])])
-    AC_CHECK_HEADER(limits.h,
-	[AC_DEFINE(HAVE_LIMITS_H, 1, [Do we have <limits.h>?])],
-	[AC_DEFINE(NO_LIMITS_H, 1, [Do we have <limits.h>?])])
     AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
     AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
     AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
@@ -2420,9 +2246,9 @@ AC_DEFUN([SC_PATH_X], [
     not_really_there=""
     if test "$no_x" = ""; then
 	if test "$x_includes" = ""; then
-	    AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
+	    AC_TRY_CPP([#include <X11/Xlib.h>], , not_really_there="yes")
 	else
-	    if test ! -r $x_includes/X11/Intrinsic.h; then
+	    if test ! -r $x_includes/X11/Xlib.h; then
 		not_really_there="yes"
 	    fi
 	fi
@@ -2430,11 +2256,11 @@ AC_DEFUN([SC_PATH_X], [
     if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
 	AC_MSG_CHECKING([for X11 header files])
 	found_xincludes="no"
-	AC_TRY_CPP([#include <X11/Intrinsic.h>], found_xincludes="yes", found_xincludes="no")
+	AC_TRY_CPP([#include <X11/Xlib.h>], found_xincludes="yes", found_xincludes="no")
 	if test "$found_xincludes" = "no"; then
 	    dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
 	    for i in $dirs ; do
-		if test -r $i/X11/Intrinsic.h; then
+		if test -r $i/X11/Xlib.h; then
 		    AC_MSG_RESULT([$i])
 		    XINCLUDES=" -I$i"
 		    found_xincludes="yes"
@@ -2805,7 +2631,7 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
 	# Now check for auxiliary declarations
 	AC_CACHE_CHECK([for struct dirent64], tcl_cv_struct_dirent64,[
 	    AC_TRY_COMPILE([#include <sys/types.h>
-#include <sys/dirent.h>],[struct dirent64 p;],
+#include <dirent.h>],[struct dirent64 p;],
 		tcl_cv_struct_dirent64=yes,tcl_cv_struct_dirent64=no)])
 	if test "x${tcl_cv_struct_dirent64}" = "xyes" ; then
 	    AC_DEFINE(HAVE_STRUCT_DIRENT64, 1, [Is 'struct dirent64' in <sys/types.h>?])
diff --git a/unix/tcl.pc.in b/unix/tcl.pc.in
index 8bf67cd..846cb11 100644
--- a/unix/tcl.pc.in
+++ b/unix/tcl.pc.in
@@ -8,8 +8,8 @@ includedir=@includedir@
 Name: Tool Command Language
 Description: Tcl is a powerful, easy-to-learn dynamic programming language, suitable for a wide range of uses.
 URL: http://www.tcl.tk/
-Version: @TCL_VERSION@
-Requires:
-Conflicts:
-Libs: -L${libdir} @TCL_LIBS@
+Version: @TCL_VERSION@@TCL_PATCH_LEVEL@
+Requires.private: zlib >= 1.2.3
+Libs: -L${libdir} @TCL_LIB_FLAG@ @TCL_STUB_LIB_FLAG@
+Libs.private: @TCL_LIBS@
 Cflags: -I${includedir}
diff --git a/unix/tcl.spec b/unix/tcl.spec
index 0c42aa4..1b8693f 100644
--- a/unix/tcl.spec
+++ b/unix/tcl.spec
@@ -4,7 +4,7 @@
 
 Name:          tcl
 Summary:       Tcl scripting language development environment
-Version:       8.6b3
+Version:       8.6.4
 Release:       2
 License:       BSD
 Group:         Development/Languages
@@ -30,7 +30,7 @@ CFLAGS="%optflags" ./configure \
 	--prefix=%{directory} \
 	--exec-prefix=%{directory} \
 	--libdir=%{directory}/%{_lib}
-make 
+make
 
 %install
 cd unix
diff --git a/unix/tclAppInit.c b/unix/tclAppInit.c
index 159bbd8..9bbc88b 100644
--- a/unix/tclAppInit.c
+++ b/unix/tclAppInit.c
@@ -22,14 +22,14 @@ extern Tcl_PackageInitProc Tcltest_SafeInit;
 #endif /* TCL_TEST */
 
 #ifdef TCL_XT_TEST
-extern void		XtToolkitInitialize(void);
-extern int		Tclxttest_Init(Tcl_Interp *interp);
-#endif
+extern void                XtToolkitInitialize(void);
+extern Tcl_PackageInitProc Tclxttest_Init;
+#endif /* TCL_XT_TEST */
 
 /*
  * The following #if block allows you to change the AppInit function by using
  * a #define of TCL_LOCAL_APPINIT instead of rewriting this entire file. The
- * #if checks for that #define and uses Tcl_AppInit if it doesn't exist.
+ * #if checks for that #define and uses Tcl_AppInit if it does not exist.
  */
 
 #ifndef TCL_LOCAL_APPINIT
@@ -48,7 +48,7 @@ MODULE_SCOPE int main(int, char **);
  */
 
 #ifdef TCL_LOCAL_MAIN_HOOK
-extern int TCL_LOCAL_MAIN_HOOK(int *argc, char ***argv);
+MODULE_SCOPE int TCL_LOCAL_MAIN_HOOK(int *argc, char ***argv);
 #endif
 
 /*
@@ -71,7 +71,7 @@ extern int TCL_LOCAL_MAIN_HOOK(int *argc, char ***argv);
 int
 main(
     int argc,			/* Number of command-line arguments. */
-    char **argv)		/* Values of command-line arguments. */
+    char *argv[])		/* Values of command-line arguments. */
 {
 #ifdef TCL_XT_TEST
     XtToolkitInitialize();
@@ -145,14 +145,16 @@ Tcl_AppInit(
     /*
      * Specify a user-specific startup file to invoke if the application is
      * run interactively. Typically the startup file is "~/.apprc" where "app"
-     * is the name of the application. If this line is deleted then no user-
-     * specific startup file will be run under any conditions.
+     * is the name of the application. If this line is deleted then no
+     * user-specific startup file will be run under any conditions.
      */
 
 #ifdef DJGPP
-    (Tcl_SetVar)(interp, "tcl_rcFileName", "~/tclsh.rc", TCL_GLOBAL_ONLY);
+    (Tcl_ObjSetVar2)(interp, Tcl_NewStringObj("tcl_rcFileName", -1), NULL,
+	    Tcl_NewStringObj("~/tclsh.rc", -1), TCL_GLOBAL_ONLY);
 #else
-    (Tcl_SetVar)(interp, "tcl_rcFileName", "~/.tclshrc", TCL_GLOBAL_ONLY);
+    (Tcl_ObjSetVar2)(interp, Tcl_NewStringObj("tcl_rcFileName", -1), NULL,
+	    Tcl_NewStringObj("~/.tclshrc", -1), TCL_GLOBAL_ONLY);
 #endif
 
     return TCL_OK;
diff --git a/unix/tclConfig.h.in b/unix/tclConfig.h.in
index f171cce..a4ab3e5 100644
--- a/unix/tclConfig.h.in
+++ b/unix/tclConfig.h.in
@@ -4,9 +4,6 @@
     #ifndef _TCLCONFIG
     #define _TCLCONFIG
 
-/* Define if building universal (internal helper macro) */
-#undef AC_APPLE_UNIVERSAL_BUILD
-
 /* Is gettimeofday() actually declared in <sys/time.h>? */
 #undef GETTOD_NOT_DECLARED
 
@@ -115,6 +112,9 @@
 /* Define to 1 if you have the `gmtime_r' function. */
 #undef HAVE_GMTIME_R
 
+/* Compiler support for module scope symbols */
+#undef HAVE_HIDDEN
+
 /* Do we have the intptr_t type? */
 #undef HAVE_INTPTR_T
 
@@ -127,9 +127,6 @@
 /* Define to 1 if you have the <libkern/OSAtomic.h> header file. */
 #undef HAVE_LIBKERN_OSATOMIC_H
 
-/* Do we have <limits.h>? */
-#undef HAVE_LIMITS_H
-
 /* Define to 1 if you have the `localtime_r' function. */
 #undef HAVE_LOCALTIME_R
 
@@ -211,10 +208,10 @@
 /* Is 'struct stat64' in <sys/stat.h>? */
 #undef HAVE_STRUCT_STAT64
 
-/* Define to 1 if `st_blksize' is a member of `struct stat'. */
+/* Define to 1 if `st_blksize' is member of `struct stat'. */
 #undef HAVE_STRUCT_STAT_ST_BLKSIZE
 
-/* Define to 1 if `st_blocks' is a member of `struct stat'. */
+/* Define to 1 if `st_blocks' is member of `struct stat'. */
 #undef HAVE_STRUCT_STAT_ST_BLOCKS
 
 /* Define to 1 if you have the <sys/filio.h> header file. */
@@ -241,6 +238,9 @@
 /* Define to 1 if you have the <sys/types.h> header file. */
 #undef HAVE_SYS_TYPES_H
 
+/* Define to 1 if you have the <termios.h> header file. */
+#undef HAVE_TERMIOS_H
+
 /* Should we use the global timezone variable? */
 #undef HAVE_TIMEZONE_VAR
 
@@ -310,9 +310,6 @@
 /* Do we have a usable 'isnan'? */
 #undef NO_ISNAN
 
-/* Do we have <limits.h>? */
-#undef NO_LIMITS_H
-
 /* Do we have memmove()? */
 #undef NO_MEMMOVE
 
@@ -340,9 +337,6 @@
 /* Do we have <values.h>? */
 #undef NO_VALUES_H
 
-/* No visibility attribute */
-#undef NO_VIZ
-
 /* Do we have wait3() */
 #undef NO_WAIT3
 
@@ -358,9 +352,6 @@
 /* Define to the one symbol short name of this package. */
 #undef PACKAGE_TARNAME
 
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
@@ -433,32 +424,15 @@
 /* Should we use FIONBIO? */
 #undef USE_FIONBIO
 
-/* Use the sgtty API for serial lines */
-#undef USE_SGTTY
-
-/* Use the termio API for serial lines */
-#undef USE_TERMIO
-
-/* Use the termios API for serial lines */
-#undef USE_TERMIOS
-
 /* Do we want to use the threaded memory allocator? */
 #undef USE_THREAD_ALLOC
 
 /* Should we use vfork() instead of fork()? */
 #undef USE_VFORK
 
-/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
-   significant byte first (like Motorola and SPARC, unlike Intel). */
-#if defined AC_APPLE_UNIVERSAL_BUILD
-# if defined __BIG_ENDIAN__
-#  define WORDS_BIGENDIAN 1
-# endif
-#else
-# ifndef WORDS_BIGENDIAN
-#  undef WORDS_BIGENDIAN
-# endif
-#endif
+/* Define to 1 if your processor stores words with the most significant byte
+   first (like Motorola and SPARC, unlike Intel and VAX). */
+#undef WORDS_BIGENDIAN
 
 /* Are Darwin SUSv3 extensions available? */
 #undef _DARWIN_C_SOURCE
@@ -513,7 +487,7 @@
 /* Define to `int' if <sys/types.h> does not define. */
 #undef pid_t
 
-/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* Define to `unsigned' if <sys/types.h> does not define. */
 #undef size_t
 
 /* Define as int if socklen_t is not available */
diff --git a/unix/tclConfig.sh.in b/unix/tclConfig.sh.in
index d47e686..b58e9fd 100644
--- a/unix/tclConfig.sh.in
+++ b/unix/tclConfig.sh.in
@@ -165,5 +165,5 @@ TCL_BUILD_STUB_LIB_PATH='@TCL_BUILD_STUB_LIB_PATH@'
 # Path to the Tcl stub library in the install directory.
 TCL_STUB_LIB_PATH='@TCL_STUB_LIB_PATH@'
 
-# Flag, 1: we built Tcl with threads enables, 0 we didn't
+# Flag, 1: we built Tcl with threads enabled, 0 we didn't
 TCL_THREADS=@TCL_THREADS@
diff --git a/unix/tclLoadDl.c b/unix/tclLoadDl.c
index a48aa23..dc711f8 100644
--- a/unix/tclLoadDl.c
+++ b/unix/tclLoadDl.c
@@ -66,14 +66,16 @@ TclpDlopen(
     Tcl_LoadHandle *loadHandle,	/* Filled with token for dynamically loaded
 				 * file which will be passed back to
 				 * (*unloadProcPtr)() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr)
+    Tcl_FSUnloadFileProc **unloadProcPtr,
 				/* Filled with address of Tcl_FSUnloadFileProc
 				 * function which should be used for this
 				 * file. */
+    int flags)
 {
     void *handle;
     Tcl_LoadHandle newHandle;
     const char *native;
+    int dlopenflags = 0;
 
     /*
      * First try the full path the user gave us. This is particularly
@@ -83,9 +85,19 @@ TclpDlopen(
 
     native = Tcl_FSGetNativePath(pathPtr);
     /*
-     * Use (RTLD_NOW|RTLD_LOCAL) always, see [Bug #3216070]
+     * Use (RTLD_NOW|RTLD_LOCAL) as default, see [Bug #3216070]
      */
-    handle = dlopen(native, RTLD_NOW | RTLD_LOCAL);
+    if (flags & TCL_LOAD_GLOBAL) {
+    	dlopenflags |= RTLD_GLOBAL;
+    } else {
+    	dlopenflags |= RTLD_LOCAL;
+    }
+    if (flags & TCL_LOAD_LAZY) {
+    	dlopenflags |= RTLD_LAZY;
+    } else {
+    	dlopenflags |= RTLD_NOW;
+    }
+    handle = dlopen(native, dlopenflags);
     if (handle == NULL) {
 	/*
 	 * Let the OS loader examine the binary search path for whatever
@@ -98,9 +110,9 @@ TclpDlopen(
 
 	native = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds);
 	/*
-	 * Use (RTLD_NOW|RTLD_LOCAL) always, see [Bug #3216070]
+	 * Use (RTLD_NOW|RTLD_LOCAL) as default, see [Bug #3216070]
 	 */
-	handle = dlopen(native, RTLD_NOW | RTLD_LOCAL);
+	handle = dlopen(native, dlopenflags);
 	Tcl_DStringFree(&ds);
     }
 
@@ -152,7 +164,7 @@ FindSymbol(
     const char *native;		/* Name of the library to be loaded, in
 				 * system encoding */
     Tcl_DString newName, ds;	/* Buffers for converting the name to
-				 * system encoding and prepending an 
+				 * system encoding and prepending an
 				 * underscore*/
     void *handle = (void *) loadHandle->clientData;
 				/* Native handle to the loaded library */
diff --git a/unix/tclLoadDyld.c b/unix/tclLoadDyld.c
index 95735a4..8b7dc58 100644
--- a/unix/tclLoadDyld.c
+++ b/unix/tclLoadDyld.c
@@ -16,7 +16,7 @@
 #include "tclInt.h"
 
 #ifndef MODULE_SCOPE
-#   define MODULE_SCOPE		extern
+#   define MODULE_SCOPE extern
 #endif
 
 /*
@@ -48,6 +48,7 @@
 #endif /* TCL_DYLD_USE_DLFCN */
 
 #if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 #include <mach-o/dyld.h>
 #include <mach-o/fat.h>
 #include <mach-o/swap.h>
@@ -148,10 +149,11 @@ TclpDlopen(
     Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
 				 * file which will be passed back to
 				 * (*unloadProcPtr)() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr)
+    Tcl_FSUnloadFileProc **unloadProcPtr,
 				/* Filled with address of Tcl_FSUnloadFileProc
 				 * function which should be used for this
 				 * file. */
+    int flags)
 {
     Tcl_DyldLoadHandle *dyldLoadHandle;
     Tcl_LoadHandle newHandle;
@@ -169,6 +171,9 @@ TclpDlopen(
     int result;
     Tcl_DString ds;
     const char *nativePath, *nativeFileName = NULL;
+#if TCL_DYLD_USE_DLFCN
+    int dlopenflags = 0;
+#endif /* TCL_DYLD_USE_DLFCN */
 
     /*
      * First try the full path the user gave us. This is particularly
@@ -182,20 +187,28 @@ TclpDlopen(
 
 #if TCL_DYLD_USE_DLFCN
     /*
-     * Use (RTLD_NOW|RTLD_LOCAL) always, see [Bug #3216070]
+     * Use (RTLD_NOW|RTLD_LOCAL) as default, see [Bug #3216070]
      */
 
-    dlHandle = dlopen(nativePath, RTLD_NOW | RTLD_LOCAL);
+    if (flags & TCL_LOAD_GLOBAL) {
+    	dlopenflags |= RTLD_GLOBAL;
+    } else {
+    	dlopenflags |= RTLD_LOCAL;
+    }
+    if (flags & TCL_LOAD_LAZY) {
+    	dlopenflags |= RTLD_LAZY;
+    } else {
+    	dlopenflags |= RTLD_NOW;
+    }
+    dlHandle = dlopen(nativePath, dlopenflags);
     if (!dlHandle) {
 	/*
 	 * Let the OS loader examine the binary search path for whatever string
 	 * the user gave us which hopefully refers to a file on the binary
 	 * path.
-	 *
-	 * Use (RTLD_NOW|RTLD_LOCAL) always, see [Bug #3216070]
 	 */
 
-	dlHandle = dlopen(nativeFileName, RTLD_NOW | RTLD_LOCAL);
+	dlHandle = dlopen(nativeFileName, dlopenflags);
 	if (!dlHandle) {
 	    errMsg = dlerror();
 	}
@@ -237,9 +250,10 @@ TclpDlopen(
 		err = NSCreateObjectFileImageFromFile(nativePath,
 			&dyldObjFileImage);
 		if (err == NSObjectFileImageSuccess && dyldObjFileImage) {
-		    module = NSLinkModule(dyldObjFileImage, nativePath,
-			    NSLINKMODULE_OPTION_BINDNOW
-			    | NSLINKMODULE_OPTION_RETURN_ON_ERROR);
+		    int nsflags = NSLINKMODULE_OPTION_RETURN_ON_ERROR;
+		    if (!(flags & 1)) nsflags |= NSLINKMODULE_OPTION_PRIVATE;
+		    if (!(flags & 2)) nsflags |= NSLINKMODULE_OPTION_BINDNOW;
+		    module = NSLinkModule(dyldObjFileImage, nativePath, nsflags);
 		    NSDestroyObjectFileImage(dyldObjFileImage);
 		    if (module) {
 			modulePtr = ckalloc(sizeof(Tcl_DyldModuleHandle));
@@ -552,10 +566,11 @@ TclpLoadMemory(
     Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
 				 * file which will be passed back to
 				 * (*unloadProcPtr)() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr)
+    Tcl_FSUnloadFileProc **unloadProcPtr,
 				/* Filled with address of Tcl_FSUnloadFileProc
 				 * function which should be used for this
 				 * file. */
+    int flags)
 {
     Tcl_LoadHandle newHandle;
     Tcl_DyldLoadHandle *dyldLoadHandle;
@@ -563,6 +578,7 @@ TclpLoadMemory(
     Tcl_DyldModuleHandle *modulePtr;
     NSModule module;
     const char *objFileImageErrMsg = NULL;
+    int nsflags = NSLINKMODULE_OPTION_RETURN_ON_ERROR;
 
     /*
      * Try to create an object file image that we can load from.
@@ -647,7 +663,7 @@ TclpLoadMemory(
 	vm_deallocate(mach_task_self(), (vm_address_t) buffer, size);
 	if (objFileImageErrMsg != NULL) {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "NSCreateObjectFileImageFromMemory() error: ",
+		    "NSCreateObjectFileImageFromMemory() error: %s",
 		    objFileImageErrMsg));
 	}
 	return TCL_ERROR;
@@ -657,8 +673,9 @@ TclpLoadMemory(
      * Extract the module we want from the image of the object file.
      */
 
-    module = NSLinkModule(dyldObjFileImage, "[Memory Based Bundle]",
-	    NSLINKMODULE_OPTION_BINDNOW | NSLINKMODULE_OPTION_RETURN_ON_ERROR);
+    if (!(flags & 1)) nsflags |= NSLINKMODULE_OPTION_PRIVATE;
+    if (!(flags & 2)) nsflags |= NSLINKMODULE_OPTION_BINDNOW;
+    module = NSLinkModule(dyldObjFileImage, "[Memory Based Bundle]", nsflags);
     NSDestroyObjectFileImage(dyldObjFileImage);
     if (!module) {
 	NSLinkEditErrors editError;
diff --git a/unix/tclLoadNext.c b/unix/tclLoadNext.c
index 06df2db..eb0affa 100644
--- a/unix/tclLoadNext.c
+++ b/unix/tclLoadNext.c
@@ -46,10 +46,11 @@ TclpDlopen(
     Tcl_LoadHandle *loadHandle,	/* Filled with token for dynamically loaded
 				 * file which will be passed back to
 				 * (*unloadProcPtr)() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr)
+    Tcl_FSUnloadFileProc **unloadProcPtr,
 				/* Filled with address of Tcl_FSUnloadFileProc
 				 * function which should be used for this
 				 * file. */
+    int flags)
 {
     Tcl_LoadHandle newHandle;
     struct mach_header *header;
@@ -133,8 +134,8 @@ FindSymbol(
     const char *symbol)
 {
     Tcl_PackageInitProc *proc = NULL;
- 
-   if (symbol) {
+
+    if (symbol) {
 	char sym[strlen(symbol) + 2];
 
 	sym[0] = '_';
diff --git a/unix/tclLoadOSF.c b/unix/tclLoadOSF.c
index 6e76b55..377ed28 100644
--- a/unix/tclLoadOSF.c
+++ b/unix/tclLoadOSF.c
@@ -70,10 +70,11 @@ TclpDlopen(
     Tcl_LoadHandle *loadHandle,	/* Filled with token for dynamically loaded
 				 * file which will be passed back to
 				 * (*unloadProcPtr)() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr)
+    Tcl_FSUnloadFileProc **unloadProcPtr,
 				/* Filled with address of Tcl_FSUnloadFileProc
 				 * function which should be used for this
 				 * file. */
+    int flags)
 {
     Tcl_LoadHandle newHandle;
     ldr_module_t lm;
diff --git a/unix/tclLoadShl.c b/unix/tclLoadShl.c
index 7b80bcc..4be3d7b 100644
--- a/unix/tclLoadShl.c
+++ b/unix/tclLoadShl.c
@@ -12,15 +12,6 @@
  */
 
 #include <dl.h>
-
-/*
- * On some HP machines, dl.h defines EXTERN; remove that definition.
- */
-
-#ifdef EXTERN
-#   undef EXTERN
-#endif
-
 #include "tclInt.h"
 
 /*
@@ -57,10 +48,11 @@ TclpDlopen(
     Tcl_LoadHandle *loadHandle,	/* Filled with token for dynamically loaded
 				 * file which will be passed back to
 				 * (*unloadProcPtr)() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr)
+    Tcl_FSUnloadFileProc **unloadProcPtr,
 				/* Filled with address of Tcl_FSUnloadFileProc
 				 * function which should be used for this
 				 * file. */
+    int flags)
 {
     shl_t handle;
     Tcl_LoadHandle newHandle;
diff --git a/unix/tclUnixChan.c b/unix/tclUnixChan.c
index 9ee37f1..a1fe090 100644
--- a/unix/tclUnixChan.c
+++ b/unix/tclUnixChan.c
@@ -14,16 +14,9 @@
 #include "tclInt.h"	/* Internal definitions for Tcl. */
 #include "tclIO.h"	/* To get Channel type declaration. */
 
-#define SUPPORTS_TTY
-
-#undef DIRECT_BAUD
-#ifdef B4800
-#   if (B4800 == 4800)
-#	define DIRECT_BAUD
-#   endif /* B4800 == 4800 */
-#endif /* B4800 */
-
-#ifdef USE_TERMIOS
+#undef SUPPORTS_TTY
+#if defined(HAVE_TERMIOS_H)
+#   define SUPPORTS_TTY 1
 #   include <termios.h>
 #   ifdef HAVE_SYS_IOCTL_H
 #	include <sys/ioctl.h>
@@ -31,60 +24,29 @@
 #   ifdef HAVE_SYS_MODEM_H
 #	include <sys/modem.h>
 #   endif /* HAVE_SYS_MODEM_H */
-#   define IOSTATE			struct termios
-#   define GETIOSTATE(fd, statePtr)	tcgetattr((fd), (statePtr))
-#   define SETIOSTATE(fd, statePtr)	tcsetattr((fd), TCSADRAIN, (statePtr))
-#   define GETCONTROL(fd, intPtr)	ioctl((fd), TIOCMGET, (intPtr))
-#   define SETCONTROL(fd, intPtr)	ioctl((fd), TIOCMSET, (intPtr))
 
 #   ifdef FIONREAD
 #	define GETREADQUEUE(fd, int)	ioctl((fd), FIONREAD, &(int))
 #   elif defined(FIORDCHK)
 #	define GETREADQUEUE(fd, int)	int = ioctl((fd), FIORDCHK, NULL)
-#   endif /* FIONREAD */
+#   else
+#       define GETREADQUEUE(fd, int)    int = 0
+#   endif
+
 #   ifdef TIOCOUTQ
 #	define GETWRITEQUEUE(fd, int)	ioctl((fd), TIOCOUTQ, &(int))
-#   endif /* TIOCOUTQ */
-#   if defined(TIOCSBRK) && defined(TIOCCBRK)
-
-/*
- * Can't use ?: operator below because that messes up types on either Linux or
- * Solaris (the two are mutually exclusive!)
- */
+#   else
+#	define GETWRITEQUEUE(fd, int)	int = 0
+#   endif
 
-#	define SETBREAK(fd, flag) \
-		if (flag) {				\
-		    ioctl((fd), TIOCSBRK, NULL);	\
-		} else {				\
-		    ioctl((fd), TIOCCBRK, NULL);	\
-		}
-#   endif /* TIOCSBRK&TIOCCBRK */
 #   if !defined(CRTSCTS) && defined(CNEW_RTSCTS)
 #	define CRTSCTS CNEW_RTSCTS
 #   endif /* !CRTSCTS&CNEW_RTSCTS */
 #   if !defined(PAREXT) && defined(CMSPAR)
 #	define PAREXT CMSPAR
 #   endif /* !PAREXT&&CMSPAR */
-#else	/* !USE_TERMIOS */
-
-#ifdef USE_TERMIO
-#   include <termio.h>
-#   define IOSTATE			struct termio
-#   define GETIOSTATE(fd, statePtr)	ioctl((fd), TCGETA, (statePtr))
-#   define SETIOSTATE(fd, statePtr)	ioctl((fd), TCSETAW, (statePtr))
-#else	/* !USE_TERMIO */
-
-#ifdef USE_SGTTY
-#   include <sgtty.h>
-#   define IOSTATE			struct sgttyb
-#   define GETIOSTATE(fd, statePtr)	ioctl((fd), TIOCGETP, (statePtr))
-#   define SETIOSTATE(fd, statePtr)	ioctl((fd), TIOCSETP, (statePtr))
-#else	/* !USE_SGTTY */
-#   undef SUPPORTS_TTY
-#endif	/* !USE_SGTTY */
-
-#endif	/* !USE_TERMIO */
-#endif	/* !USE_TERMIOS */
+
+#endif	/* HAVE_TERMIOS_H */
 
 /*
  * Helper macros to make parts of this file clearer. The macros do exactly
@@ -110,18 +72,6 @@ typedef struct FileState {
 #ifdef SUPPORTS_TTY
 
 /*
- * The following structure describes per-instance state of a tty-based
- * channel.
- */
-
-typedef struct TtyState {
-    FileState fs;		/* Per-instance state of the file descriptor.
-				 * Must be the first field. */
-    IOSTATE savedState;		/* Initial state of device. Used to reset
-				 * state when device closed. */
-} TtyState;
-
-/*
  * The following structure is used to set or get the serial port attributes in
  * a platform-independant manner.
  */
@@ -167,15 +117,12 @@ static void		TtyGetAttributes(int fd, TtyAttrs *ttyPtr);
 static int		TtyGetOptionProc(ClientData instanceData,
 			    Tcl_Interp *interp, const char *optionName,
 			    Tcl_DString *dsPtr);
-#ifndef DIRECT_BAUD
-static int		TtyGetBaud(unsigned long speed);
-static unsigned long	TtyGetSpeed(int baud);
-#endif /* DIRECT_BAUD */
-static FileState *	TtyInit(int fd, int initialize);
+static int		TtyGetBaud(speed_t speed);
+static speed_t		TtyGetSpeed(int baud);
+static void		TtyInit(int fd);
 static void		TtyModemStatusStr(int status, Tcl_DString *dsPtr);
 static int		TtyParseMode(Tcl_Interp *interp, const char *mode,
-			    int *speedPtr, int *parityPtr, int *dataPtr,
-			    int *stopPtr);
+			    TtyAttrs *ttyPtr);
 static void		TtySetAttributes(int fd, TtyAttrs *ttyPtr);
 static int		TtySetOptionProc(ClientData instanceData,
 			    Tcl_Interp *interp, const char *optionName,
@@ -573,7 +520,6 @@ FileGetHandleProc(
 }
 
 #ifdef SUPPORTS_TTY
-#ifdef USE_TERMIOS
 /*
  *----------------------------------------------------------------------
  *
@@ -606,7 +552,6 @@ TtyModemStatusStr(
     Tcl_DStringAppendElement(dsPtr, (status & TIOCM_CD) ? "1" : "0");
 #endif /* TIOCM_CD */
 }
-#endif /* USE_TERMIOS */
 
 /*
  *----------------------------------------------------------------------
@@ -636,11 +581,9 @@ TtySetOptionProc(
     FileState *fsPtr = instanceData;
     unsigned int len, vlen;
     TtyAttrs tty;
-#ifdef USE_TERMIOS
-    int flag, control, argc;
+    int argc;
     const char **argv;
-    IOSTATE iostate;
-#endif /* USE_TERMIOS */
+    struct termios iostate;
 
     len = strlen(optionName);
     vlen = strlen(value);
@@ -650,8 +593,7 @@ TtySetOptionProc(
      */
 
     if ((len > 2) && (strncmp(optionName, "-mode", len) == 0)) {
-	if (TtyParseMode(interp, value, &tty.baud, &tty.parity, &tty.data,
-		&tty.stop) != TCL_OK) {
+	if (TtyParseMode(interp, value, &tty) != TCL_OK) {
 	    return TCL_ERROR;
 	}
 
@@ -663,7 +605,6 @@ TtySetOptionProc(
 	return TCL_OK;
     }
 
-#ifdef USE_TERMIOS
 
     /*
      * Option -handshake none|xonxoff|rtscts|dtrdsr
@@ -674,25 +615,25 @@ TtySetOptionProc(
 	 * Reset all handshake options. DTR and RTS are ON by default.
 	 */
 
-	GETIOSTATE(fsPtr->fd, &iostate);
+	tcgetattr(fsPtr->fd, &iostate);
 	CLEAR_BITS(iostate.c_iflag, IXON | IXOFF | IXANY);
 #ifdef CRTSCTS
 	CLEAR_BITS(iostate.c_cflag, CRTSCTS);
 #endif /* CRTSCTS */
-	if (strncasecmp(value, "NONE", vlen) == 0) {
+	if (Tcl_UtfNcasecmp(value, "NONE", vlen) == 0) {
 	    /*
 	     * Leave all handshake options disabled.
 	     */
-	} else if (strncasecmp(value, "XONXOFF", vlen) == 0) {
+	} else if (Tcl_UtfNcasecmp(value, "XONXOFF", vlen) == 0) {
 	    SET_BITS(iostate.c_iflag, IXON | IXOFF | IXANY);
-	} else if (strncasecmp(value, "RTSCTS", vlen) == 0) {
+	} else if (Tcl_UtfNcasecmp(value, "RTSCTS", vlen) == 0) {
 #ifdef CRTSCTS
 	    SET_BITS(iostate.c_cflag, CRTSCTS);
 #else /* !CRTSTS */
 	    UNSUPPORTED_OPTION("-handshake RTSCTS");
 	    return TCL_ERROR;
 #endif /* CRTSCTS */
-	} else if (strncasecmp(value, "DTRDSR", vlen) == 0) {
+	} else if (Tcl_UtfNcasecmp(value, "DTRDSR", vlen) == 0) {
 	    UNSUPPORTED_OPTION("-handshake DTRDSR");
 	    return TCL_ERROR;
 	} else {
@@ -705,7 +646,7 @@ TtySetOptionProc(
 	    }
 	    return TCL_ERROR;
 	}
-	SETIOSTATE(fsPtr->fd, &iostate);
+	tcsetattr(fsPtr->fd, TCSADRAIN, &iostate);
 	return TCL_OK;
     }
 
@@ -730,7 +671,7 @@ TtySetOptionProc(
 	    return TCL_ERROR;
 	}
 
-	GETIOSTATE(fsPtr->fd, &iostate);
+	tcgetattr(fsPtr->fd, &iostate);
 
 	Tcl_UtfToExternalDString(NULL, argv[0], -1, &ds);
 	iostate.c_cc[VSTART] = *(const cc_t *) Tcl_DStringValue(&ds);
@@ -741,7 +682,7 @@ TtySetOptionProc(
 	Tcl_DStringFree(&ds);
 	ckfree(argv);
 
-	SETIOSTATE(fsPtr->fd, &iostate);
+	tcsetattr(fsPtr->fd, TCSADRAIN, &iostate);
 	return TCL_OK;
     }
 
@@ -752,22 +693,22 @@ TtySetOptionProc(
     if ((len > 2) && (strncmp(optionName, "-timeout", len) == 0)) {
 	int msec;
 
-	GETIOSTATE(fsPtr->fd, &iostate);
+	tcgetattr(fsPtr->fd, &iostate);
 	if (Tcl_GetInt(interp, value, &msec) != TCL_OK) {
 	    return TCL_ERROR;
 	}
 	iostate.c_cc[VMIN] = 0;
 	iostate.c_cc[VTIME] = (msec==0) ? 0 : (msec<100) ? 1 : (msec+50)/100;
-	SETIOSTATE(fsPtr->fd, &iostate);
+	tcsetattr(fsPtr->fd, TCSADRAIN, &iostate);
 	return TCL_OK;
     }
 
     /*
      * Option -ttycontrol {DTR 1 RTS 0 BREAK 0}
      */
-
     if ((len > 4) && (strncmp(optionName, "-ttycontrol", len) == 0)) {
-	int i;
+#if defined(TIOCMGET) && defined(TIOCMSET)
+	int i, control, flag;
 
 	if (Tcl_SplitList(interp, value, &argc, &argv) == TCL_ERROR) {
 	    return TCL_ERROR;
@@ -784,44 +725,36 @@ TtySetOptionProc(
 	    return TCL_ERROR;
 	}
 
-	GETCONTROL(fsPtr->fd, &control);
+	ioctl(fsPtr->fd, TIOCMGET, &control);
 	for (i = 0; i < argc-1; i += 2) {
 	    if (Tcl_GetBoolean(interp, argv[i+1], &flag) == TCL_ERROR) {
 		ckfree(argv);
 		return TCL_ERROR;
 	    }
-	    if (strncasecmp(argv[i], "DTR", strlen(argv[i])) == 0) {
-#ifdef TIOCM_DTR
+	    if (Tcl_UtfNcasecmp(argv[i], "DTR", strlen(argv[i])) == 0) {
 		if (flag) {
 		    SET_BITS(control, TIOCM_DTR);
 		} else {
 		    CLEAR_BITS(control, TIOCM_DTR);
 		}
-#else /* !TIOCM_DTR */
-		UNSUPPORTED_OPTION("-ttycontrol DTR");
-		ckfree(argv);
-		return TCL_ERROR;
-#endif /* TIOCM_DTR */
-	    } else if (strncasecmp(argv[i], "RTS", strlen(argv[i])) == 0) {
-#ifdef TIOCM_RTS
+	    } else if (Tcl_UtfNcasecmp(argv[i], "RTS", strlen(argv[i])) == 0) {
 		if (flag) {
 		    SET_BITS(control, TIOCM_RTS);
 		} else {
 		    CLEAR_BITS(control, TIOCM_RTS);
 		}
-#else /* !TIOCM_RTS*/
-		UNSUPPORTED_OPTION("-ttycontrol RTS");
-		ckfree(argv);
-		return TCL_ERROR;
-#endif /* TIOCM_RTS*/
-	    } else if (strncasecmp(argv[i], "BREAK", strlen(argv[i])) == 0) {
-#ifdef SETBREAK
-		SETBREAK(fsPtr->fd, flag);
-#else /* !SETBREAK */
+	    } else if (Tcl_UtfNcasecmp(argv[i], "BREAK", strlen(argv[i])) == 0) {
+#if defined(TIOCSBRK) && defined(TIOCCBRK)
+		if (flag) {
+		    ioctl(fsPtr->fd, TIOCSBRK, NULL);
+		} else {
+		    ioctl(fsPtr->fd, TIOCCBRK, NULL);
+		}
+#else /* TIOCSBRK & TIOCCBRK */
 		UNSUPPORTED_OPTION("-ttycontrol BREAK");
 		ckfree(argv);
 		return TCL_ERROR;
-#endif /* SETBREAK */
+#endif /* TIOCSBRK & TIOCCBRK */
 	    } else {
 		if (interp) {
 		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
@@ -835,17 +768,16 @@ TtySetOptionProc(
 	    }
 	} /* -ttycontrol options loop */
 
-	SETCONTROL(fsPtr->fd, &control);
+	ioctl(fsPtr->fd, TIOCMSET, &control);
 	ckfree(argv);
 	return TCL_OK;
+#else /* TIOCMGET&TIOCMSET */
+	UNSUPPORTED_OPTION("-ttycontrol");
+#endif /* TIOCMGET&TIOCMSET */
     }
 
     return Tcl_BadChannelOption(interp, optionName,
 	    "mode handshake timeout ttycontrol xchar");
-
-#else /* !USE_TERMIOS */
-    return Tcl_BadChannelOption(interp, optionName, "mode");
-#endif /* USE_TERMIOS */
 }
 
 /*
@@ -860,12 +792,8 @@ TtySetOptionProc(
  *
  * Results:
  *	A standard Tcl result. Also sets the supplied DString to the string
- *	value of the option(s) returned.
- *
- * Side effects:
- *	The string returned by this function is in static storage and may be
- *	reused at any time subsequent to the call. Sets error message if
- *	needed (by calling Tcl_BadChannelOption).
+ *	value of the option(s) returned.  Sets error message if needed
+ *	(by calling Tcl_BadChannelOption).
  *
  *----------------------------------------------------------------------
  */
@@ -899,7 +827,6 @@ TtyGetOptionProc(
 	Tcl_DStringAppendElement(dsPtr, buf);
     }
 
-#ifdef USE_TERMIOS
     /*
      * Get option -xchar
      */
@@ -909,11 +836,11 @@ TtyGetOptionProc(
 	Tcl_DStringStartSublist(dsPtr);
     }
     if (len==0 || (len>1 && strncmp(optionName, "-xchar", len)==0)) {
-	IOSTATE iostate;
+	struct termios iostate;
 	Tcl_DString ds;
 
 	valid = 1;
-	GETIOSTATE(fsPtr->fd, &iostate);
+	tcgetattr(fsPtr->fd, &iostate);
 	Tcl_DStringInit(&ds);
 
 	Tcl_ExternalToUtfDString(NULL, (char *) &iostate.c_cc[VSTART], 1, &ds);
@@ -938,12 +865,8 @@ TtyGetOptionProc(
 	int inQueue=0, outQueue=0, inBuffered, outBuffered;
 
 	valid = 1;
-#ifdef GETREADQUEUE
 	GETREADQUEUE(fsPtr->fd, inQueue);
-#endif /* GETREADQUEUE */
-#ifdef GETWRITEQUEUE
 	GETWRITEQUEUE(fsPtr->fd, outQueue);
-#endif /* GETWRITEQUEUE */
 	inBuffered = Tcl_InputBuffered(fsPtr->channel);
 	outBuffered = Tcl_OutputBuffered(fsPtr->channel);
 
@@ -953,37 +876,31 @@ TtyGetOptionProc(
 	Tcl_DStringAppendElement(dsPtr, buf);
     }
 
+#if defined(TIOCMGET)
     /*
      * Get option -ttystatus
      * Option is readonly and returned by [fconfigure chan -ttystatus] but not
      * returned by unnamed [fconfigure chan].
      */
-
     if ((len > 4) && (strncmp(optionName, "-ttystatus", len) == 0)) {
 	int status;
 
 	valid = 1;
-	GETCONTROL(fsPtr->fd, &status);
+	ioctl(fsPtr->fd, TIOCMGET, &status);
 	TtyModemStatusStr(status, dsPtr);
     }
-#endif /* USE_TERMIOS */
+#endif /* TIOCMGET */
 
     if (valid) {
 	return TCL_OK;
     }
     return Tcl_BadChannelOption(interp, optionName, "mode"
-#ifdef USE_TERMIOS
 	    " queue ttystatus xchar"
-#endif /* USE_TERMIOS */
 	    );
 }
 
-#ifdef DIRECT_BAUD
-#   define TtyGetSpeed(baud)	((unsigned) (baud))
-#   define TtyGetBaud(speed)	((int) (speed))
-#else /* !DIRECT_BAUD */
 
-static const struct {int baud; unsigned long speed;} speeds[] = {
+static const struct {int baud; speed_t speed;} speeds[] = {
 #ifdef B0
     {0, B0},
 #endif
@@ -1079,20 +996,16 @@ static const struct {int baud; unsigned long speed;} speeds[] = {
  *
  * TtyGetSpeed --
  *
- *	Given a baud rate, get the mask value that should be stored in the
- *	termios, termio, or sgttyb structure in order to select that baud
- *	rate.
+ *	Given an integer baud rate, get the speed_t value that should be
+ *	used to select that baud rate.
  *
  * Results:
  *	As above.
  *
- * Side effects:
- *	None.
- *
  *---------------------------------------------------------------------------
  */
 
-static unsigned long
+static speed_t
 TtyGetSpeed(
     int baud)			/* The baud rate to look up. */
 {
@@ -1125,21 +1038,17 @@ TtyGetSpeed(
  *
  * TtyGetBaud --
  *
- *	Given a speed mask value from a termios, termio, or sgttyb structure,
- *	get the baus rate that corresponds to that mask value.
+ *	Return the integer baud rate corresponding to a given speed_t value.
  *
  * Results:
  *	As above. If the mask value was not recognized, 0 is returned.
  *
- * Side effects:
- *	None.
- *
  *---------------------------------------------------------------------------
  */
 
 static int
 TtyGetBaud(
-    unsigned long speed)	/* Speed mask value to look up. */
+    speed_t speed)		/* Speed mask value to look up. */
 {
     int i;
 
@@ -1150,7 +1059,6 @@ TtyGetBaud(
     }
     return 0;
 }
-#endif /* !DIRECT_BAUD */
 
 /*
  *---------------------------------------------------------------------------
@@ -1175,12 +1083,11 @@ TtyGetAttributes(
     TtyAttrs *ttyPtr)		/* Buffer filled with serial port
 				 * attributes. */
 {
-    IOSTATE iostate;
+    struct termios iostate;
     int baud, parity, data, stop;
 
-    GETIOSTATE(fd, &iostate);
+    tcgetattr(fd, &iostate);
 
-#ifdef USE_TERMIOS
     baud = TtyGetBaud(cfgetospeed(&iostate));
 
     parity = 'n';
@@ -1202,39 +1109,6 @@ TtyGetAttributes(
     data = (data == CS5) ? 5 : (data == CS6) ? 6 : (data == CS7) ? 7 : 8;
 
     stop = (iostate.c_cflag & CSTOPB) ? 2 : 1;
-#endif /* USE_TERMIOS */
-
-#ifdef USE_TERMIO
-    baud = TtyGetBaud(iostate.c_cflag & CBAUD);
-
-    parity = 'n';
-    switch (iostate.c_cflag & (PARENB | PARODD | PAREXT)) {
-    case PARENB			  : parity = 'e'; break;
-    case PARENB | PARODD	  : parity = 'o'; break;
-    case PARENB |	   PAREXT : parity = 's'; break;
-    case PARENB | PARODD | PAREXT : parity = 'm'; break;
-    }
-
-    data = iostate.c_cflag & CSIZE;
-    data = (data == CS5) ? 5 : (data == CS6) ? 6 : (data == CS7) ? 7 : 8;
-
-    stop = (iostate.c_cflag & CSTOPB) ? 2 : 1;
-#endif /* USE_TERMIO */
-
-#ifdef USE_SGTTY
-    baud = TtyGetBaud(iostate.sg_ospeed);
-
-    parity = 'n';
-    if (iostate.sg_flags & EVENP) {
-	parity = 'e';
-    } else if (iostate.sg_flags & ODDP) {
-	parity = 'o';
-    }
-
-    data = (iostate.sg_flags & (EVENP | ODDP)) ? 7 : 8;
-
-    stop = 1;
-#endif /* USE_SGTTY */
 
     ttyPtr->baud    = baud;
     ttyPtr->parity  = parity;
@@ -1265,12 +1139,10 @@ TtySetAttributes(
     TtyAttrs *ttyPtr)		/* Buffer containing new attributes for serial
 				 * port. */
 {
-    IOSTATE iostate;
-
-#ifdef USE_TERMIOS
+    struct termios iostate;
     int parity, data, flag;
 
-    GETIOSTATE(fd, &iostate);
+    tcgetattr(fd, &iostate);
     cfsetospeed(&iostate, TtyGetSpeed(ttyPtr->baud));
     cfsetispeed(&iostate, TtyGetSpeed(ttyPtr->baud));
 
@@ -1300,58 +1172,7 @@ TtySetAttributes(
     CLEAR_BITS(iostate.c_cflag, PARENB | PARODD | CSIZE | CSTOPB);
     SET_BITS(iostate.c_cflag, flag);
 
-#endif	/* USE_TERMIOS */
-
-#ifdef USE_TERMIO
-    int parity, data, flag;
-
-    GETIOSTATE(fd, &iostate);
-    CLEAR_BITS(iostate.c_cflag, CBAUD);
-    SET_BITS(iostate.c_cflag, TtyGetSpeed(ttyPtr->baud));
-
-    flag = 0;
-    parity = ttyPtr->parity;
-    if (parity != 'n') {
-	SET_BITS(flag, PARENB);
-	if ((parity == 'm') || (parity == 's')) {
-	    SET_BITS(flag, PAREXT);
-	}
-	if ((parity == 'm') || (parity == 'o')) {
-	    SET_BITS(flag, PARODD);
-	}
-    }
-    data = ttyPtr->data;
-    SET_BITS(flag,
-	    (data == 5) ? CS5 :
-	    (data == 6) ? CS6 :
-	    (data == 7) ? CS7 : CS8);
-    if (ttyPtr->stop == 2) {
-	SET_BITS(flag, CSTOPB);
-    }
-
-    CLEAR_BITS(iostate.c_cflag, PARENB | PARODD | PAREXT | CSIZE | CSTOPB);
-    SET_BITS(iostate.c_cflag, flag);
-
-#endif	/* USE_TERMIO */
-
-#ifdef USE_SGTTY
-    int parity;
-
-    GETIOSTATE(fd, &iostate);
-    iostate.sg_ospeed = TtyGetSpeed(ttyPtr->baud);
-    iostate.sg_ispeed = TtyGetSpeed(ttyPtr->baud);
-
-    parity = ttyPtr->parity;
-    if (parity == 'e') {
-	CLEAR_BITS(iostate.sg_flags, ODDP);
-	SET_BITS(iostate.sg_flags, EVENP);
-    } else if (parity == 'o') {
-	CLEAR_BITS(iostate.sg_flags, EVENP);
-	SET_BITS(iostate.sg_flags, ODDP);
-    }
-#endif	/* USE_SGTTY */
-
-    SETIOSTATE(fd, &iostate);
+    tcsetattr(fd, TCSADRAIN, &iostate);
 }
 
 /*
@@ -1367,9 +1188,6 @@ TtySetAttributes(
  *	TCL_ERROR otherwise. If TCL_ERROR is returned, an error message is
  *	left in the interp's result (if interp is non-NULL).
  *
- * Side effects:
- *	None.
- *
  *---------------------------------------------------------------------------
  */
 
@@ -1377,17 +1195,17 @@ static int
 TtyParseMode(
     Tcl_Interp *interp,		/* If non-NULL, interp for error return. */
     const char *mode,		/* Mode string to be parsed. */
-    int *speedPtr,		/* Filled with baud rate from mode string. */
-    int *parityPtr,		/* Filled with parity from mode string. */
-    int *dataPtr,		/* Filled with data bits from mode string. */
-    int *stopPtr)		/* Filled with stop bits from mode string. */
+    TtyAttrs *ttyPtr)		/* Filled with data from mode string */
 {
     int i, end;
     char parity;
-    static const char *bad = "bad value for -mode";
+    const char *bad = "bad value for -mode";
 
-    i = sscanf(mode, "%d,%c,%d,%d%n", speedPtr, &parity, dataPtr,
-	    stopPtr, &end);
+    i = sscanf(mode, "%d,%c,%d,%d%n",
+	    &ttyPtr->baud,
+	    &parity,
+	    &ttyPtr->data,
+	    &ttyPtr->stop, &end);
     if ((i != 4) || (mode[end] != '\0')) {
 	if (interp != NULL) {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
@@ -1407,27 +1225,27 @@ TtyParseMode(
      */
 
     if (
-#if defined(PAREXT) || defined(USE_TERMIO)
+#if defined(PAREXT)
         strchr("noems", parity)
 #else
         strchr("noe", parity)
-#endif /* PAREXT|USE_TERMIO */
+#endif /* PAREXT */
                                == NULL) {
 	if (interp != NULL) {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		    "%s parity: should be %s", bad,
-#if defined(PAREXT) || defined(USE_TERMIO)
+#if defined(PAREXT)
 		    "n, o, e, m, or s"
 #else
 		    "n, o, or e"
-#endif /* PAREXT|USE_TERMIO */
+#endif /* PAREXT */
 		    ));
 	    Tcl_SetErrorCode(interp, "TCL", "VALUE", "SERIALMODE", NULL);
 	}
 	return TCL_ERROR;
     }
-    *parityPtr = parity;
-    if ((*dataPtr < 5) || (*dataPtr > 8)) {
+    ttyPtr->parity = parity;
+    if ((ttyPtr->data < 5) || (ttyPtr->data > 8)) {
 	if (interp != NULL) {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		    "%s data: should be 5, 6, 7, or 8", bad));
@@ -1435,7 +1253,7 @@ TtyParseMode(
 	}
 	return TCL_ERROR;
     }
-    if ((*stopPtr < 0) || (*stopPtr > 2)) {
+    if ((ttyPtr->stop < 0) || (ttyPtr->stop > 2)) {
 	if (interp != NULL) {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		    "%s stop: should be 1 or 2", bad));
@@ -1453,71 +1271,38 @@ TtyParseMode(
  *
  *	Given file descriptor that refers to a serial port, initialize the
  *	serial port to a set of sane values so that Tcl can talk to a device
- *	located on the serial port. Note that no initialization happens if the
- *	initialize flag is not set; this is necessary for the correct handling
- *	of UNIX console TTYs at startup.
- *
- * Results:
- *	A pointer to a FileState suitable for use with Tcl_CreateChannel and
- *	the ttyChannelType structure.
+ *	located on the serial port.
  *
  * Side effects:
  *	Serial device initialized to non-blocking raw mode, similar to sockets
- *	(if initialize flag is non-zero.) All other modes can be simulated on
- *	top of this in Tcl.
+ *	All other modes can be simulated on top of this in Tcl.
  *
  *---------------------------------------------------------------------------
  */
 
-static FileState *
+static void
 TtyInit(
-    int fd,			/* Open file descriptor for serial port to be
-				 * initialized. */
-    int initialize)
+    int fd)	/* Open file descriptor for serial port to be initialized. */
 {
-    TtyState *ttyPtr = ckalloc(sizeof(TtyState));
-    int stateUpdated = 0;
-
-    GETIOSTATE(fd, &ttyPtr->savedState);
-    if (initialize) {
-	IOSTATE iostate = ttyPtr->savedState;
-
-#if defined(USE_TERMIOS) || defined(USE_TERMIO)
-	if (iostate.c_iflag != IGNBRK
-		|| iostate.c_oflag != 0
-		|| iostate.c_lflag != 0
-		|| iostate.c_cflag & CREAD
-		|| iostate.c_cc[VMIN] != 1
-		|| iostate.c_cc[VTIME] != 0) {
-	    stateUpdated = 1;
-	}
+    struct termios iostate;
+    tcgetattr(fd, &iostate);
+
+    if (iostate.c_iflag != IGNBRK
+	    || iostate.c_oflag != 0
+	    || iostate.c_lflag != 0
+	    || iostate.c_cflag & CREAD
+	    || iostate.c_cc[VMIN] != 1
+	    || iostate.c_cc[VTIME] != 0)
+    {
 	iostate.c_iflag = IGNBRK;
 	iostate.c_oflag = 0;
 	iostate.c_lflag = 0;
-	SET_BITS(iostate.c_cflag, CREAD);
+	iostate.c_cflag |= CREAD;
 	iostate.c_cc[VMIN] = 1;
 	iostate.c_cc[VTIME] = 0;
-#endif	/* USE_TERMIOS|USE_TERMIO */
 
-#ifdef USE_SGTTY
-	if ((iostate.sg_flags & (EVENP | ODDP))
-		|| !(iostate.sg_flags & RAW)) {
-	    ttyPtr->stateUpdated = 1;
-	}
-	iostate.sg_flags &= EVENP | ODDP;
-	SET_BITS(iostate.sg_flags, RAW);
-#endif	/* USE_SGTTY */
-
-	/*
-	 * Only update if we're changing anything to avoid possible blocking.
-	 */
-
-	if (stateUpdated) {
-	    SETIOSTATE(fd, &iostate);
-	}
+	tcsetattr(fd, TCSADRAIN, &iostate);
     }
-
-    return &ttyPtr->fs;
 }
 #endif	/* SUPPORTS_TTY */
 
@@ -1576,6 +1361,11 @@ TclpOpenFileChannel(
 
     native = Tcl_FSGetNativePath(pathPtr);
     if (native == NULL) {
+	if (interp != (Tcl_Interp *) NULL) {
+	    Tcl_AppendResult(interp, "couldn't open \"",
+	    TclGetString(pathPtr), "\": filename is invalid on this platform",
+	    NULL);
+	}
 	return NULL;
     }
 
@@ -1621,15 +1411,15 @@ TclpOpenFileChannel(
 
 	translation = "auto crlf";
 	channelTypePtr = &ttyChannelType;
-	fsPtr = TtyInit(fd, 1);
+	TtyInit(fd);
     } else
 #endif	/* SUPPORTS_TTY */
     {
 	translation = NULL;
 	channelTypePtr = &fileChannelType;
-	fsPtr = ckalloc(sizeof(FileState));
     }
 
+    fsPtr = ckalloc(sizeof(FileState));
     fsPtr->validMask = channelPermissions | TCL_EXCEPTION;
     fsPtr->fd = fd;
 
@@ -1692,7 +1482,6 @@ Tcl_MakeFileChannel(
 
 #ifdef SUPPORTS_TTY
     if (isatty(fd)) {
-	fsPtr = TtyInit(fd, 0);
 	channelTypePtr = &ttyChannelType;
 	sprintf(channelName, "serial%d", fd);
     } else
@@ -1703,10 +1492,10 @@ Tcl_MakeFileChannel(
 	return TclpMakeTcpClientChannelMode(INT2PTR(fd), mode);
     } else {
 	channelTypePtr = &fileChannelType;
-	fsPtr = ckalloc(sizeof(FileState));
 	sprintf(channelName, "file%d", fd);
     }
 
+    fsPtr = ckalloc(sizeof(FileState));
     fsPtr->fd = fd;
     fsPtr->validMask = mode | TCL_EXCEPTION;
     fsPtr->channel = Tcl_CreateChannel(channelTypePtr, channelName,
@@ -2035,7 +1824,7 @@ TclUnixWaitForFile(
 	    if (FD_ISSET(fd, &writableMask)) {
 		SET_BITS(result, TCL_WRITABLE);
 	    }
-	    if (FD_ISSET(fd, &exceptionMask)) { 
+	    if (FD_ISSET(fd, &exceptionMask)) {
 		SET_BITS(result, TCL_EXCEPTION);
 	    }
 	    result &= mask;
diff --git a/unix/tclUnixCompat.c b/unix/tclUnixCompat.c
index e201018..2a68f7f 100644
--- a/unix/tclUnixCompat.c
+++ b/unix/tclUnixCompat.c
@@ -995,12 +995,19 @@ TclWinCPUID(
 
     /* See: <http://en.wikipedia.org/wiki/CPUID> */
 #if defined(HAVE_CPUID)
-    __asm__ __volatile__("mov %%ebx, %%edi     \n\t" /* save %ebx */
+#if defined(__x86_64__) || defined(_M_AMD64) || defined (_M_X64)
+    __asm__ __volatile__("movq %%rbx, %%rsi     \n\t" /* save %rbx */
                  "cpuid            \n\t"
-                 "mov %%ebx, %%esi   \n\t" /* save what cpuid just put in %ebx */
-                 "mov %%edi, %%ebx  \n\t" /* restore the old %ebx */
+                 "xchgq %%rsi, %%rbx   \n\t" /* restore the old %rbx */
                  : "=a"(regsPtr[0]), "=S"(regsPtr[1]), "=c"(regsPtr[2]), "=d"(regsPtr[3])
-                 : "a"(index) : "edi");
+                 : "a"(index));
+#else
+    __asm__ __volatile__("mov %%ebx, %%esi     \n\t" /* save %ebx */
+                 "cpuid            \n\t"
+                 "xchg %%esi, %%ebx   \n\t" /* restore the old %ebx */
+                 : "=a"(regsPtr[0]), "=S"(regsPtr[1]), "=c"(regsPtr[2]), "=d"(regsPtr[3])
+                 : "a"(index));
+#endif
     status = TCL_OK;
 #endif
     return status;
diff --git a/unix/tclUnixFCmd.c b/unix/tclUnixFCmd.c
index d3cc6bf..3b1b6ca 100644
--- a/unix/tclUnixFCmd.c
+++ b/unix/tclUnixFCmd.c
@@ -62,6 +62,16 @@
 #define DOTREE_F	3	/* regular file */
 
 /*
+ * Fallback temporary file location the temporary file generation code. Can be
+ * overridden at compile time for when it is known that temp files can't be
+ * written to /tmp (hello, iOS!).
+ */
+
+#ifndef TCL_TEMPORARY_FILE_DIRECTORY
+#define TCL_TEMPORARY_FILE_DIRECTORY	"/tmp"
+#endif
+
+/*
  * Callbacks for file attributes code.
  */
 
@@ -81,10 +91,10 @@ static int		SetPermissionsAttribute(Tcl_Interp *interp,
 			    Tcl_Obj *attributePtr);
 static int		GetModeFromPermString(Tcl_Interp *interp,
 			    const char *modeStringPtr, mode_t *modePtr);
-#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE)
-static int		GetReadOnlyAttribute(Tcl_Interp *interp, int objIndex,
+#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) || defined(__CYGWIN__)
+static int		GetUnixFileAttributes(Tcl_Interp *interp, int objIndex,
 			    Tcl_Obj *fileName, Tcl_Obj **attributePtrPtr);
-static int		SetReadOnlyAttribute(Tcl_Interp *interp, int objIndex,
+static int		SetUnixFileAttributes(Tcl_Interp *interp, int objIndex,
 			    Tcl_Obj *fileName, Tcl_Obj *attributePtr);
 #endif
 
@@ -114,10 +124,20 @@ extern const char *const tclpFileAttrStrings[];
 
 #else /* !DJGPP */
 enum {
-    UNIX_GROUP_ATTRIBUTE, UNIX_OWNER_ATTRIBUTE, UNIX_PERMISSIONS_ATTRIBUTE,
-#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE)
+#if defined(__CYGWIN__)
+    UNIX_ARCHIVE_ATTRIBUTE,
+#endif
+    UNIX_GROUP_ATTRIBUTE,
+#if defined(__CYGWIN__)
+    UNIX_HIDDEN_ATTRIBUTE,
+#endif
+    UNIX_OWNER_ATTRIBUTE, UNIX_PERMISSIONS_ATTRIBUTE,
+#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) || defined(__CYGWIN__)
     UNIX_READONLY_ATTRIBUTE,
 #endif
+#if defined(__CYGWIN__)
+    UNIX_SYSTEM_ATTRIBUTE,
+#endif
 #ifdef MAC_OSX_TCL
     MACOSX_CREATOR_ATTRIBUTE, MACOSX_TYPE_ATTRIBUTE, MACOSX_HIDDEN_ATTRIBUTE,
     MACOSX_RSRCLENGTH_ATTRIBUTE,
@@ -127,10 +147,20 @@ enum {
 
 MODULE_SCOPE const char *const tclpFileAttrStrings[];
 const char *const tclpFileAttrStrings[] = {
-    "-group", "-owner", "-permissions",
-#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE)
+#if defined(__CYGWIN__)
+    "-archive",
+#endif
+    "-group",
+#if defined(__CYGWIN__)
+    "-hidden",
+#endif
+    "-owner", "-permissions",
+#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) || defined(__CYGWIN__)
     "-readonly",
 #endif
+#if defined(__CYGWIN__)
+    "-system",
+#endif
 #ifdef MAC_OSX_TCL
     "-creator", "-type", "-hidden", "-rsrclength",
 #endif
@@ -139,11 +169,20 @@ const char *const tclpFileAttrStrings[] = {
 
 MODULE_SCOPE const TclFileAttrProcs tclpFileAttrProcs[];
 const TclFileAttrProcs tclpFileAttrProcs[] = {
+#if defined(__CYGWIN__)
+    {GetUnixFileAttributes, SetUnixFileAttributes},
+#endif
     {GetGroupAttribute, SetGroupAttribute},
+#if defined(__CYGWIN__)
+    {GetUnixFileAttributes, SetUnixFileAttributes},
+#endif
     {GetOwnerAttribute, SetOwnerAttribute},
     {GetPermissionsAttribute, SetPermissionsAttribute},
-#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE)
-    {GetReadOnlyAttribute, SetReadOnlyAttribute},
+#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) || defined(__CYGWIN__)
+    {GetUnixFileAttributes, SetUnixFileAttributes},
+#endif
+#if defined(__CYGWIN__)
+    {GetUnixFileAttributes, SetUnixFileAttributes},
 #endif
 #ifdef MAC_OSX_TCL
     {TclMacOSXGetFileAttribute,	TclMacOSXSetFileAttribute},
@@ -234,7 +273,7 @@ MODULE_SCOPE long tclMacOSXDarwinRelease;
 #endif /* NO_REALPATH */
 
 #ifdef HAVE_FTS
-#ifdef HAVE_STRUCT_STAT64
+#if defined(HAVE_STRUCT_STAT64) && !defined(__APPLE__)
 /* fts doesn't do stat64 */
 #   define noFtsStat	1
 #elif defined(__APPLE__) && defined(__LP64__) && \
@@ -452,10 +491,10 @@ DoCopyFile(
     switch ((int) (statBufPtr->st_mode & S_IFMT)) {
 #ifndef DJGPP
     case S_IFLNK: {
-	char linkBuf[MAXPATHLEN];
+	char linkBuf[MAXPATHLEN+1];
 	int length;
 
-	length = readlink(src, linkBuf, sizeof(linkBuf));
+	length = readlink(src, linkBuf, MAXPATHLEN);
 							/* INTL: Native. */
 	if (length == -1) {
 	    return TCL_ERROR;
@@ -2093,7 +2132,7 @@ TclpObjNormalizePath(
 /*
  *----------------------------------------------------------------------
  *
- * TclpOpenTemporaryFile --
+ * TclpOpenTemporaryFile, TclUnixOpenTemporaryFile --
  *
  *	Creates a temporary file, possibly based on the supplied bits and
  *	pieces of template supplied in the first three arguments. If the
@@ -2103,7 +2142,12 @@ TclpObjNormalizePath(
  *	file to go away once it is no longer needed.
  *
  * Results:
- *	A read-write Tcl Channel open on the file.
+ *	A read-write Tcl Channel open on the file for TclpOpenTemporaryFile,
+ *	or a file descriptor (or -1 on failure) for TclUnixOpenTemporaryFile.
+ *
+ * Side effects:
+ *	Accesses the filesystem. Will set the contents of the Tcl_Obj fourth
+ *	argument (if that is non-NULL).
  *
  *----------------------------------------------------------------------
  */
@@ -2115,11 +2159,30 @@ TclpOpenTemporaryFile(
     Tcl_Obj *extensionObj,
     Tcl_Obj *resultingNameObj)
 {
-    Tcl_Channel chan;
+    int fd = TclUnixOpenTemporaryFile(dirObj, basenameObj, extensionObj,
+	    resultingNameObj);
+
+    if (fd == -1) {
+	return NULL;
+    }
+    return Tcl_MakeFileChannel(INT2PTR(fd), TCL_READABLE|TCL_WRITABLE);
+}
+
+int
+TclUnixOpenTemporaryFile(
+    Tcl_Obj *dirObj,
+    Tcl_Obj *basenameObj,
+    Tcl_Obj *extensionObj,
+    Tcl_Obj *resultingNameObj)
+{
     Tcl_DString template, tmp;
     const char *string;
     int len, fd;
 
+    /*
+     * We should also check against making more then TMP_MAX of these.
+     */
+
     if (dirObj) {
 	string = Tcl_GetStringFromObj(dirObj, &len);
 	Tcl_UtfToExternalDString(NULL, string, len, &template);
@@ -2155,9 +2218,10 @@ TclpOpenTemporaryFile(
     }
 
     if (fd == -1) {
-	return NULL;
+	Tcl_DStringFree(&template);
+	return -1;
     }
-    chan = Tcl_MakeFileChannel(INT2PTR(fd), TCL_READABLE|TCL_WRITABLE);
+
     if (resultingNameObj) {
 	Tcl_ExternalToUtfDString(NULL, Tcl_DStringValue(&template),
 		Tcl_DStringLength(&template), &tmp);
@@ -2176,7 +2240,7 @@ TclpOpenTemporaryFile(
     }
     Tcl_DStringFree(&template);
 
-    return chan;
+    return fd;
 }
 
 /*
@@ -2191,30 +2255,158 @@ DefaultTempDir(void)
 
     dir = getenv("TMPDIR");
     if (dir && dir[0] && stat(dir, &buf) == 0 && S_ISDIR(buf.st_mode)
-	    && access(dir, W_OK)) {
+	    && access(dir, W_OK) == 0) {
 	return dir;
     }
 
 #ifdef P_tmpdir
     dir = P_tmpdir;
-    if (stat(dir, &buf) == 0 && S_ISDIR(buf.st_mode) && access(dir, W_OK)) {
+    if (stat(dir, &buf)==0 && S_ISDIR(buf.st_mode) && access(dir, W_OK)==0) {
 	return dir;
     }
 #endif
 
     /*
-     * Assume that "/tmp" is always an existing writable directory; we've no
-     * recovery mechanism if it isn't.
+     * Assume that the default location ("/tmp" if not overridden) is always
+     * an existing writable directory; we've no recovery mechanism if it
+     * isn't.
      */
 
-    return "/tmp";
+    return TCL_TEMPORARY_FILE_DIRECTORY;
 }
 
-#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE)
+#if defined(__CYGWIN__)
+
+static void
+StatError(
+    Tcl_Interp *interp,		/* The interp that has the error */
+    Tcl_Obj *fileName)		/* The name of the file which caused the
+				 * error. */
+{
+    TclWinConvertError(GetLastError());
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf("could not read \"%s\": %s",
+	    TclGetString(fileName), Tcl_PosixError(interp)));
+}
+
+static WCHAR *
+winPathFromObj(
+    Tcl_Obj *fileName)
+{
+    int size;
+    const char *native =  Tcl_FSGetNativePath(fileName);
+    WCHAR *winPath;
+
+    size = cygwin_conv_path(1, native, NULL, 0);
+    winPath = ckalloc(size);
+    cygwin_conv_path(1, native, winPath, size);
+
+    return winPath;
+}
+
+static const int attributeArray[] = {
+    0x20, 0, 2, 0, 0, 1, 4};
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * GetUnixFileAttributes
+ *
+ *	Gets the readonly attribute of a file.
+ *
+ * Results:
+ *	Standard TCL result. Returns a new Tcl_Obj in attributePtrPtr if there
+ *	is no error. The object will have ref count 0.
+ *
+ * Side effects:
+ *	A new object is allocated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+GetUnixFileAttributes(
+    Tcl_Interp *interp,		/* The interp we are using for errors. */
+    int objIndex,		/* The index of the attribute. */
+    Tcl_Obj *fileName,		/* The name of the file (UTF-8). */
+    Tcl_Obj **attributePtrPtr)	/* A pointer to return the object with. */
+{
+    int fileAttributes;
+    WCHAR *winPath = winPathFromObj(fileName);
+
+    fileAttributes = GetFileAttributesW(winPath);
+    ckfree(winPath);
+
+    if (fileAttributes == -1) {
+	StatError(interp, fileName);
+	return TCL_ERROR;
+    }
+
+    *attributePtrPtr = Tcl_NewIntObj((fileAttributes&attributeArray[objIndex])!=0);
+
+    return TCL_OK;
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * SetUnixFileAttributes
+ *
+ *	Sets the readonly attribute of a file.
+ *
+ * Results:
+ *	Standard TCL result.
+ *
+ * Side effects:
+ *	The readonly attribute of the file is changed.
+ *
+ *---------------------------------------------------------------------------
+ */
+
+static int
+SetUnixFileAttributes(
+    Tcl_Interp *interp,	    /* The interp we are using for errors. */
+    int objIndex,           /* The index of the attribute. */
+    Tcl_Obj *fileName,      /* The name of the file (UTF-8). */
+    Tcl_Obj *attributePtr)  /* The attribute to set. */
+{
+    int yesNo, fileAttributes, old;
+    WCHAR *winPath;
+
+    if (Tcl_GetBooleanFromObj(interp, attributePtr, &yesNo) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    winPath = winPathFromObj(fileName);
+
+    fileAttributes = old = GetFileAttributesW(winPath);
+
+    if (fileAttributes == -1) {
+	ckfree(winPath);
+	StatError(interp, fileName);
+	return TCL_ERROR;
+    }
+
+    if (yesNo) {
+	fileAttributes |= attributeArray[objIndex];
+    } else {
+	fileAttributes &= ~attributeArray[objIndex];
+    }
+
+    if ((fileAttributes != old)
+	    && !SetFileAttributesW(winPath, fileAttributes)) {
+	ckfree(winPath);
+	StatError(interp, fileName);
+	return TCL_ERROR;
+    }
+
+	ckfree(winPath);
+    return TCL_OK;
+}
+#elif defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE)
 /*
  *----------------------------------------------------------------------
  *
- * GetReadOnlyAttribute
+ * GetUnixFileAttributes
  *
  *	Gets the readonly attribute (user immutable flag) of a file.
  *
@@ -2229,7 +2421,7 @@ DefaultTempDir(void)
  */
 
 static int
-GetReadOnlyAttribute(
+GetUnixFileAttributes(
     Tcl_Interp *interp,		/* The interp we are using for errors. */
     int objIndex,		/* The index of the attribute. */
     Tcl_Obj *fileName,		/* The name of the file (UTF-8). */
@@ -2257,7 +2449,7 @@ GetReadOnlyAttribute(
 /*
  *---------------------------------------------------------------------------
  *
- * SetReadOnlyAttribute
+ * SetUnixFileAttributes
  *
  *	Sets the readonly attribute (user immutable flag) of a file.
  *
@@ -2271,7 +2463,7 @@ GetReadOnlyAttribute(
  */
 
 static int
-SetReadOnlyAttribute(
+SetUnixFileAttributes(
     Tcl_Interp *interp,		/* The interp we are using for errors. */
     int objIndex,		/* The index of the attribute. */
     Tcl_Obj *fileName,		/* The name of the file (UTF-8). */
diff --git a/unix/tclUnixFile.c b/unix/tclUnixFile.c
index 38504d9..2cb0027 100644
--- a/unix/tclUnixFile.c
+++ b/unix/tclUnixFile.c
@@ -1105,6 +1105,12 @@ TclNativeCreateNativeRep(
     str = Tcl_GetStringFromObj(validPathPtr, &len);
     Tcl_UtfToExternalDString(NULL, str, len, &ds);
     len = Tcl_DStringLength(&ds) + sizeof(char);
+    if (strlen(Tcl_DStringValue(&ds)) < len - sizeof(char)) {
+	/* See bug [3118489]: NUL in filenames */
+	Tcl_DecrRefCount(validPathPtr);
+	Tcl_DStringFree(&ds);
+	return NULL;
+    }
     Tcl_DecrRefCount(validPathPtr);
     nativePathPtr = ckalloc(len);
     memcpy(nativePathPtr, Tcl_DStringValue(&ds), (size_t) len);
@@ -1181,9 +1187,10 @@ TclpUtime(
 int
 TclOSstat(
     const char *name,
-    Tcl_StatBuf *statBuf)
+    void *cygstat)
 {
     struct stat buf;
+    Tcl_StatBuf *statBuf = cygstat;
     int result = stat(name, &buf);
 
     statBuf->st_mode = buf.st_mode;
@@ -1203,9 +1210,10 @@ TclOSstat(
 int
 TclOSlstat(
     const char *name,
-    Tcl_StatBuf *statBuf)
+    void *cygstat)
 {
     struct stat buf;
+    Tcl_StatBuf *statBuf = cygstat;
     int result = lstat(name, &buf);
 
     statBuf->st_mode = buf.st_mode;
diff --git a/unix/tclUnixInit.c b/unix/tclUnixInit.c
index f07b123..520c8e5 100644
--- a/unix/tclUnixInit.c
+++ b/unix/tclUnixInit.c
@@ -33,7 +33,10 @@
 #endif
 
 #ifdef __CYGWIN__
-DLLIMPORT extern __stdcall unsigned char GetVersionExA(void *);
+DLLIMPORT extern __stdcall unsigned char GetVersionExW(void *);
+DLLIMPORT extern __stdcall void *LoadLibraryW(const void *);
+DLLIMPORT extern __stdcall void FreeLibrary(void *);
+DLLIMPORT extern __stdcall void *GetProcAddress(void *, const char *);
 DLLIMPORT extern __stdcall void GetSystemInfo(void *);
 
 #define NUMPLATFORMS 4
@@ -66,14 +69,14 @@ typedef struct _SYSTEM_INFO {
   int      wProcessorRevision;
 } SYSTEM_INFO;
 
-typedef struct _OSVERSIONINFOA {
+typedef struct _OSVERSIONINFOW {
   DWORD dwOSVersionInfoSize;
   DWORD dwMajorVersion;
   DWORD dwMinorVersion;
   DWORD dwBuildNumber;
   DWORD dwPlatformId;
-  char szCSDVersion[128];
-} OSVERSIONINFOA;
+  wchar_t szCSDVersion[128];
+} OSVERSIONINFOW;
 #endif
 
 #ifdef HAVE_COREFOUNDATION
@@ -747,7 +750,8 @@ TclpSetVariables(
 {
 #ifdef __CYGWIN__
     SYSTEM_INFO sysInfo;
-    OSVERSIONINFOA osInfo;
+    static OSVERSIONINFOW osInfo;
+    static int osInfoInitialized = 0;
     char buffer[TCL_INTEGER_SPACE * 2];
 #elif !defined(NO_UNAME)
     struct utsname name;
@@ -764,7 +768,7 @@ TclpSetVariables(
      */
 
     CFLocaleRef localeRef;
-    
+
     if (CFLocaleCopyCurrent != NULL && CFLocaleGetIdentifier != NULL &&
 	    (localeRef = CFLocaleCopyCurrent())) {
 	CFStringRef locale = CFLocaleGetIdentifier(localeRef);
@@ -860,8 +864,20 @@ TclpSetVariables(
     unameOK = 0;
 #ifdef __CYGWIN__
 	unameOK = 1;
-    osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA);
-    GetVersionExA(&osInfo);
+    if (!osInfoInitialized) {
+	HANDLE handle = LoadLibraryW(L"NTDLL");
+	int(__stdcall *getversion)(void *) =
+		(int(__stdcall *)(void *))GetProcAddress(handle, "RtlGetVersion");
+	osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
+	if (!getversion || getversion(&osInfo)) {
+	    GetVersionExW(&osInfo);
+	}
+	if (handle) {
+	    FreeLibrary(handle);
+	}
+	osInfoInitialized = 1;
+    }
+
     GetSystemInfo(&sysInfo);
 
     if (osInfo.dwPlatformId < NUMPLATFORMS) {
diff --git a/unix/tclUnixNotfy.c b/unix/tclUnixNotfy.c
index b87af1b..b2bea45 100644
--- a/unix/tclUnixNotfy.c
+++ b/unix/tclUnixNotfy.c
@@ -96,7 +96,7 @@ typedef struct ThreadSpecificData {
 	 * that an event is ready to be processed
 	 * by sending this event. */
     void *hwnd;			/* Messaging window. */
-#else
+#else /* !__CYGWIN__ */
     Tcl_Condition waitCV;	/* Any other thread alerts a notifier that an
 				 * event is ready to be processed by signaling
 				 * this condition variable. */
@@ -120,6 +120,15 @@ static Tcl_ThreadDataKey dataKey;
 static int notifierCount = 0;
 
 /*
+ * The following static stores the process ID of the initialized notifier
+ * thread. If it changes, we have passed a fork and we should start a new
+ * notifier thread.
+ *
+ * You must hold the notifierMutex lock before accessing this variable.
+ */
+static pid_t processIDInitialized = 0;
+
+/*
  * The following variable points to the head of a doubly-linked list of
  * ThreadSpecificData structures for all threads that are currently waiting on
  * an event.
@@ -184,9 +193,15 @@ static Tcl_ThreadId notifierThread;
  */
 
 #ifdef TCL_THREADS
-static void		NotifierThreadProc(ClientData clientData);
-#endif
-static int		FileHandlerEventProc(Tcl_Event *evPtr, int flags);
+static void	NotifierThreadProc(ClientData clientData);
+#if defined(HAVE_PTHREAD_ATFORK) && !defined(__APPLE__) && !defined(__hpux)
+static int	atForkInit = 0;
+static void	AtForkPrepare(void);
+static void	AtForkParent(void);
+static void	AtForkChild(void);
+#endif /* HAVE_PTHREAD_ATFORK */
+#endif /* TCL_THREADS */
+static int	FileHandlerEventProc(Tcl_Event *evPtr, int flags);
 
 /*
  * Import of Windows API when building threaded with Cygwin.
@@ -213,14 +228,14 @@ typedef struct {
     void *hCursor;
     void *hbrBackground;
     void *lpszMenuName;
-    void *lpszClassName;
+    const void *lpszClassName;
 } WNDCLASS;
 
 extern void __stdcall	CloseHandle(void *);
 extern void *__stdcall	CreateEventW(void *, unsigned char, unsigned char,
 			    void *);
-extern void * __stdcall	CreateWindowExW(void *, void *, void *, DWORD, int,
-			    int, int, int, void *, void *, void *, void *);
+extern void * __stdcall	CreateWindowExW(void *, const void *, const void *,
+			    DWORD, int, int, int, int, void *, void *, void *, void *);
 extern DWORD __stdcall	DefWindowProcW(void *, int, void *, void *);
 extern unsigned char __stdcall	DestroyWindow(void *);
 extern int __stdcall	DispatchMessageW(const MSG *);
@@ -275,11 +290,39 @@ Tcl_InitNotifier(void)
 	 */
 
 	Tcl_MutexLock(&notifierMutex);
+#if defined(HAVE_PTHREAD_ATFORK) && !defined(__APPLE__) && !defined(__hpux)
+	/*
+	 * Install pthread_atfork handlers to reinitialize the notifier in the
+	 * child of a fork.
+	 */
+
+	if (!atForkInit) {
+	    int result = pthread_atfork(AtForkPrepare, AtForkParent, AtForkChild);
+
+	    if (result) {
+		Tcl_Panic("Tcl_InitNotifier: pthread_atfork failed");
+	    }
+	    atForkInit = 1;
+	}
+#endif /* HAVE_PTHREAD_ATFORK */
+	/*
+	 * Check if my process id changed, e.g. I was forked
+	 * In this case, restart the notifier thread and close the
+	 * pipe to the original notifier thread
+	 */
+	if (notifierCount > 0 && processIDInitialized != getpid()) {
+	    Tcl_ConditionFinalize(&notifierCV);
+	    notifierCount = 0;
+	    processIDInitialized = 0;
+	    close(triggerPipe);
+	    triggerPipe = -1;
+	}
 	if (notifierCount == 0) {
 	    if (TclpThreadCreate(&notifierThread, NotifierThreadProc, NULL,
 		    TCL_THREAD_STACK_DEFAULT, TCL_THREAD_JOINABLE) != TCL_OK) {
 		Tcl_Panic("Tcl_InitNotifier: unable to start notifier thread");
 	    }
+	    processIDInitialized = getpid();
 	}
 	notifierCount++;
 
@@ -1270,6 +1313,74 @@ NotifierThreadProc(
 
     TclpThreadExit(0);
 }
+
+#if defined(HAVE_PTHREAD_ATFORK) && !defined(__APPLE__) && !defined(__hpux)
+/*
+ *----------------------------------------------------------------------
+ *
+ * AtForkPrepare --
+ *
+ *	Lock the notifier in preparation for a fork.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+AtForkPrepare(void)
+{
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * AtForkParent --
+ *
+ *	Unlock the notifier in the parent after a fork.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+AtForkParent(void)
+{
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * AtForkChild --
+ *
+ *	Unlock and reinstall the notifier in the child after a fork.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+AtForkChild(void)
+{
+    Tcl_MutexFinalize(&notifierMutex);
+    Tcl_InitNotifier();
+}
+#endif /* HAVE_PTHREAD_ATFORK */
+
 #endif /* TCL_THREADS */
 
 #endif /* !HAVE_COREFOUNDATION */
diff --git a/unix/tclUnixPipe.c b/unix/tclUnixPipe.c
index 654c9d8..8b26694 100644
--- a/unix/tclUnixPipe.c
+++ b/unix/tclUnixPipe.c
@@ -188,28 +188,16 @@ TclFile
 TclpCreateTempFile(
     const char *contents)	/* String to write into temp file, or NULL. */
 {
-    char fileName[L_tmpnam + 9];
-    const char *native;
-    Tcl_DString dstring;
-    int fd;
-
-    /*
-     * We should also check against making more then TMP_MAX of these.
-     */
+    int fd = TclUnixOpenTemporaryFile(NULL, NULL, NULL, NULL);
 
-    strcpy(fileName, P_tmpdir);				/* INTL: Native. */
-    if (fileName[strlen(fileName) - 1] != '/') {
-	strcat(fileName, "/");				/* INTL: Native. */
-    }
-    strcat(fileName, "tclXXXXXX");
-    fd = mkstemp(fileName);				/* INTL: Native. */
     if (fd == -1) {
 	return NULL;
     }
     fcntl(fd, F_SETFD, FD_CLOEXEC);
-    unlink(fileName);					/* INTL: Native. */
-
     if (contents != NULL) {
+	Tcl_DString dstring;
+	char *native;
+
 	native = Tcl_UtfToExternalDString(NULL, contents, -1, &dstring);
 	if (write(fd, native, Tcl_DStringLength(&dstring)) == -1) {
 	    close(fd);
@@ -241,29 +229,22 @@ TclpCreateTempFile(
 Tcl_Obj *
 TclpTempFileName(void)
 {
-    char fileName[L_tmpnam + 9];
-    Tcl_Obj *result = NULL;
+    Tcl_Obj *retVal, *nameObj = Tcl_NewObj();
     int fd;
 
-    /*
-     * We should also check against making more then TMP_MAX of these.
-     */
-
-    strcpy(fileName, P_tmpdir);		/* INTL: Native. */
-    if (fileName[strlen(fileName) - 1] != '/') {
-	strcat(fileName, "/");		/* INTL: Native. */
-    }
-    strcat(fileName, "tclXXXXXX");
-    fd = mkstemp(fileName);		/* INTL: Native. */
+    Tcl_IncrRefCount(nameObj);
+    fd = TclUnixOpenTemporaryFile(NULL, NULL, NULL, nameObj);
     if (fd == -1) {
+	Tcl_DecrRefCount(nameObj);
 	return NULL;
     }
-    fcntl(fd, F_SETFD, FD_CLOEXEC);
-    unlink(fileName);			/* INTL: Native. */
 
-    result = TclpNativeToNormalized(fileName);
+    fcntl(fd, F_SETFD, FD_CLOEXEC);
+    TclpObjDeleteFile(nameObj);
     close(fd);
-    return result;
+    retVal = Tcl_DuplicateObj(nameObj);
+    Tcl_DecrRefCount(nameObj);
+    return retVal;
 }
 
 /*
@@ -280,7 +261,7 @@ TclpTempFileName(void)
  *
  * On Unix, it works to load a shared object from a file of any name, so this
  * function is merely a thin wrapper around TclpTempFileName().
- *	
+ *
  *----------------------------------------------------------------------------
  */
 
@@ -988,7 +969,7 @@ PipeClose2Proc(
 	    pipePtr->outFile = NULL;
 	}
     }
-    
+
     /*
      * If half-closing, stop here.
      */
@@ -1164,7 +1145,7 @@ PipeWatchProc(
     if (psPtr->inFile) {
 	newmask = mask & (TCL_READABLE | TCL_EXCEPTION);
 	if (newmask) {
-	    Tcl_CreateFileHandler(GetFd(psPtr->inFile), mask,
+	    Tcl_CreateFileHandler(GetFd(psPtr->inFile), newmask,
 		    (Tcl_FileProc *) Tcl_NotifyChannel, psPtr->channel);
 	} else {
 	    Tcl_DeleteFileHandler(GetFd(psPtr->inFile));
@@ -1173,7 +1154,7 @@ PipeWatchProc(
     if (psPtr->outFile) {
 	newmask = mask & (TCL_WRITABLE | TCL_EXCEPTION);
 	if (newmask) {
-	    Tcl_CreateFileHandler(GetFd(psPtr->outFile), mask,
+	    Tcl_CreateFileHandler(GetFd(psPtr->outFile), newmask,
 		    (Tcl_FileProc *) Tcl_NotifyChannel, psPtr->channel);
 	} else {
 	    Tcl_DeleteFileHandler(GetFd(psPtr->outFile));
diff --git a/unix/tclUnixPort.h b/unix/tclUnixPort.h
index 63c500d..123abec 100644
--- a/unix/tclUnixPort.h
+++ b/unix/tclUnixPort.h
@@ -21,10 +21,6 @@
 
 #ifndef _TCLUNIXPORT
 #define _TCLUNIXPORT
-
-#ifndef MODULE_SCOPE
-#define MODULE_SCOPE	extern
-#endif
 
 /*
  *---------------------------------------------------------------------------
@@ -89,26 +85,28 @@ typedef off_t		Tcl_SeekOffset;
 #   define SOCKET unsigned int
 #   define WSAEWOULDBLOCK 10035
     typedef unsigned short WCHAR;
-    DLLIMPORT extern __stdcall int GetModuleHandleExW(unsigned int, const char *, void *);
-    DLLIMPORT extern __stdcall int GetModuleFileNameW(void *, const char *, int);
-    DLLIMPORT extern __stdcall int WideCharToMultiByte(int, int, const char *, int,
+    __declspec(dllimport) extern __stdcall int GetModuleHandleExW(unsigned int, const char *, void *);
+    __declspec(dllimport) extern __stdcall int GetModuleFileNameW(void *, const char *, int);
+    __declspec(dllimport) extern __stdcall int WideCharToMultiByte(int, int, const char *, int,
 	    const char *, int, const char *, const char *);
-    DLLIMPORT extern __stdcall int MultiByteToWideChar(int, int, const char *, int,
+    __declspec(dllimport) extern __stdcall int MultiByteToWideChar(int, int, const char *, int,
 	    WCHAR *, int);
-    DLLIMPORT extern __stdcall void OutputDebugStringW(const WCHAR *);
-    DLLIMPORT extern __stdcall int IsDebuggerPresent();
+    __declspec(dllimport) extern __stdcall void OutputDebugStringW(const WCHAR *);
+    __declspec(dllimport) extern __stdcall int IsDebuggerPresent();
+    __declspec(dllimport) extern __stdcall int GetLastError();
+    __declspec(dllimport) extern __stdcall int GetFileAttributesW(const WCHAR *);
+    __declspec(dllimport) extern __stdcall int SetFileAttributesW(const WCHAR *, int);
 
-    DLLIMPORT extern int cygwin_conv_path(int, const void *, void *, int);
-    DLLIMPORT extern int cygwin_conv_path_list(int, const void *, void *, int);
-#   define USE_PUTENV 1
-#   define USE_PUTENV_FOR_UNSET 1
+    __declspec(dllimport) extern int cygwin_conv_path(int, const void *, void *, int);
 /* On Cygwin, the environment is imported from the Cygwin DLL. */
+#ifndef __x86_64__
 #   define environ __cygwin_environ
+    extern char **__cygwin_environ;
+#endif
 #   define timezone _timezone
-    DLLIMPORT extern char **__cygwin_environ;
-    MODULE_SCOPE int TclOSstat(const char *name, Tcl_StatBuf *statBuf);
-    MODULE_SCOPE int TclOSlstat(const char *name, Tcl_StatBuf *statBuf);
-#elif defined(HAVE_STRUCT_STAT64)
+    extern int TclOSstat(const char *name, void *statBuf);
+    extern int TclOSlstat(const char *name, void *statBuf);
+#elif defined(HAVE_STRUCT_STAT64) && !defined(__APPLE__)
 #   define TclOSstat		stat64
 #   define TclOSlstat		lstat64
 #else
@@ -126,9 +124,7 @@ typedef off_t		Tcl_SeekOffset;
 #ifdef HAVE_SYS_SELECT_H
 #   include <sys/select.h>
 #endif
-#ifdef HAVE_SYS_STAT_H
-#   include <sys/stat.h>
-#endif
+#include <sys/stat.h>
 #if TIME_WITH_SYS_TIME
 #   include <sys/time.h>
 #   include <time.h>
@@ -145,11 +141,7 @@ typedef off_t		Tcl_SeekOffset;
 #if HAVE_INTTYPES_H
 #   include <inttypes.h>
 #endif
-#ifdef NO_LIMITS_H
-#   include "../compat/limits.h"
-#else
-#   include <limits.h>
-#endif
+#include <limits.h>
 #if HAVE_STDINT_H
 #   include <stdint.h>
 #endif
@@ -159,7 +151,7 @@ typedef off_t		Tcl_SeekOffset;
 #   include "../compat/unistd.h"
 #endif
 
-MODULE_SCOPE int	TclUnixSetBlockingMode(int fd, int mode);
+extern int TclUnixSetBlockingMode(int fd, int mode);
 
 #include <utime.h>
 
@@ -319,7 +311,7 @@ MODULE_SCOPE int	TclUnixSetBlockingMode(int fd, int mode);
 #endif
 
 #ifdef GETTOD_NOT_DECLARED
-MODULE_SCOPE int	gettimeofday(struct timeval *tp,
+extern int	gettimeofday(struct timeval *tp,
 			    struct timezone *tzp);
 #endif
 
@@ -584,19 +576,6 @@ extern char **		environ;
 
 /*
  *---------------------------------------------------------------------------
- * The termios configure test program relies on the configure script being run
- * from a terminal, which is not the case e.g., when configuring from Xcode.
- * Since termios is known to be present on all Mac OS X releases since 10.0,
- * override the configure defines for serial API here. [Bug 497147]
- *---------------------------------------------------------------------------
- */
-
-#   define USE_TERMIOS 1
-#   undef USE_TERMIO
-#   undef USE_SGTTY
-
-/*
- *---------------------------------------------------------------------------
  * Include AvailabilityMacros.h here (when available) to ensure any symbolic
  * MAC_OS_X_VERSION_* constants passed on the command line are translated.
  *---------------------------------------------------------------------------
@@ -717,8 +696,6 @@ typedef int socklen_t;
 
 #ifdef TCL_THREADS
 #   include <pthread.h>
-#   undef inet_ntoa
-#   define inet_ntoa(x)	TclpInetNtoa(x)
 #endif /* TCL_THREADS */
 
 /* FIXME - Hyper-enormous platform assumption! */
@@ -737,15 +714,15 @@ typedef int socklen_t;
 #include <pwd.h>
 #include <grp.h>
 
-MODULE_SCOPE struct passwd *	TclpGetPwNam(const char *name);
-MODULE_SCOPE struct group *	TclpGetGrNam(const char *name);
-MODULE_SCOPE struct passwd *	TclpGetPwUid(uid_t uid);
-MODULE_SCOPE struct group *	TclpGetGrGid(gid_t gid);
-MODULE_SCOPE struct hostent *	TclpGetHostByName(const char *name);
-MODULE_SCOPE struct hostent *	TclpGetHostByAddr(const char *addr,
+extern struct passwd *	TclpGetPwNam(const char *name);
+extern struct group *	TclpGetGrNam(const char *name);
+extern struct passwd *	TclpGetPwUid(uid_t uid);
+extern struct group *	TclpGetGrGid(gid_t gid);
+extern struct hostent *	TclpGetHostByName(const char *name);
+extern struct hostent *	TclpGetHostByAddr(const char *addr,
 				    int length, int type);
-MODULE_SCOPE Tcl_Channel	TclpMakeTcpClientChannelMode(
-				    ClientData tcpSocket, int mode);
+extern void *TclpMakeTcpClientChannelMode(
+				    void *tcpSocket, int mode);
 
 #endif /* _TCLUNIXPORT */
 
diff --git a/unix/tclUnixSock.c b/unix/tclUnixSock.c
index 102c620..9c5cd4b 100644
--- a/unix/tclUnixSock.c
+++ b/unix/tclUnixSock.c
@@ -55,6 +55,8 @@ struct TcpState {
     TcpFdList fds;		/* The file descriptors of the sockets. */
     int flags;			/* ORed combination of the bitfields defined
 				 * below. */
+    int interest;		/* Event types of interest */
+
     /*
      * Only needed for server sockets
      */
@@ -73,7 +75,7 @@ struct TcpState {
     struct addrinfo *myaddr;	/* Iterator over myaddrlist. */
     int filehandlers;           /* Caches FileHandlers that get set up while
                                  * an async socket is not yet connected. */
-    int status;                 /* Cache status of async socket. */
+    int connectError;           /* Cache SO_ERROR of async socket. */
     int cachedBlocking;         /* Cache blocking mode of async socket. */
 };
 
@@ -82,8 +84,13 @@ struct TcpState {
  * structure.
  */
 
-#define TCP_ASYNC_SOCKET	(1<<0)	/* Asynchronous socket. */
+#define TCP_NONBLOCKING		(1<<0)	/* Socket with non-blocking I/O */
 #define TCP_ASYNC_CONNECT	(1<<1)	/* Async connect in progress. */
+#define TCP_ASYNC_PENDING	(1<<4)	/* TcpConnect was called to
+					 * process an async connect. This
+					 * flag indicates that reentry is
+					 * still pending */
+#define TCP_ASYNC_FAILED	(1<<5)	/* An async connect finally failed */
 
 /*
  * The following defines the maximum length of the listen queue. This is the
@@ -110,7 +117,7 @@ struct TcpState {
  * Static routines for this file:
  */
 
-static int		CreateClientSocket(Tcl_Interp *interp,
+static int		TcpConnect(Tcl_Interp *interp,
                                            TcpState *state);
 static void		TcpAccept(ClientData data, int mask);
 static int		TcpBlockModeProc(ClientData data, int mode);
@@ -129,6 +136,7 @@ static int		TcpOutputProc(ClientData instanceData,
 			    const char *buf, int toWrite, int *errorCode);
 static void		TcpWatchProc(ClientData instanceData, int mask);
 static int		WaitForConnect(TcpState *statePtr, int *errorCodePtr);
+static void		WrapNotify(ClientData clientData, int mask);
 
 /*
  * This structure describes the channel type structure for TCP socket
@@ -163,6 +171,21 @@ static TclInitProcessGlobalValueProc InitializeHostName;
 static ProcessGlobalValue hostName =
 	{0, 0, NULL, NULL, InitializeHostName, NULL, NULL};
 
+#if 0
+/* printf debugging */
+void printaddrinfo(struct addrinfo *addrlist, char *prefix)
+{
+    char host[NI_MAXHOST], port[NI_MAXSERV];
+    struct addrinfo *ai;
+    for (ai = addrlist; ai != NULL; ai = ai->ai_next) {
+	getnameinfo(ai->ai_addr, ai->ai_addrlen,
+		    host, sizeof(host),
+		    port, sizeof(port),
+		    NI_NUMERICHOST|NI_NUMERICSERV);
+	fprintf(stderr,"%s: %s:%s\n", prefix, host, port);
+    }
+}
+#endif
 /*
  *----------------------------------------------------------------------
  *
@@ -349,9 +372,9 @@ TcpBlockModeProc(
     TcpState *statePtr = instanceData;
 
     if (mode == TCL_MODE_BLOCKING) {
-	CLEAR_BITS(statePtr->flags, TCP_ASYNC_SOCKET);
+	CLEAR_BITS(statePtr->flags, TCP_NONBLOCKING);
     } else {
-	SET_BITS(statePtr->flags, TCP_ASYNC_SOCKET);
+	SET_BITS(statePtr->flags, TCP_NONBLOCKING);
     }
     if (statePtr->flags & TCP_ASYNC_CONNECT) {
         statePtr->cachedBlocking = mode;
@@ -368,48 +391,80 @@ TcpBlockModeProc(
  *
  * WaitForConnect --
  *
- *	Wait for a connection on an asynchronously opened socket to be
- *	completed.  In nonblocking mode, just test if the connection
- *	has completed without blocking.
+ *	Check the state of an async connect process. If a connection
+ *	attempt terminated, process it, which may finalize it or may
+ *	start the next attempt. If a connect error occures, it is saved
+ *	in statePtr->connectError to be reported by 'fconfigure -error'.
+ *
+ *	There are two modes of operation, defined by errorCodePtr:
+ *	 *  non-NULL: Called by explicite read/write command. block if
+ *	    socket is blocking.
+ *	    May return two error codes:
+ *	     *	EWOULDBLOCK: if connect is still in progress
+ *	     *	ENOTCONN: if connect failed. This would be the error
+ *		message of a rect or sendto syscall so this is
+ *		emulated here.
+ *	 *  NULL: Called by a backround operation. Do not block and
+ *	    don't return any error code.
  *
  * Results:
  * 	0 if the connection has completed, -1 if still in progress
  * 	or there is an error.
  *
+ * Side effects:
+ *	Processes socket events off the system queue.
+ *	May process asynchroneous connect.
+ *
  *----------------------------------------------------------------------
  */
 
 static int
 WaitForConnect(
     TcpState *statePtr,		/* State of the socket. */
-    int *errorCodePtr)		/* Where to store errors? */
+    int *errorCodePtr)
 {
-    int timeOut;		/* How long to wait. */
-    int state;			/* Of calling TclWaitForFile. */
+    int timeout;
 
     /*
-     * If an asynchronous connect is in progress, attempt to wait for it to
-     * complete before reading.
+     * Check if an async connect failed already and error reporting is demanded,
+     * return the error ENOTCONN
      */
 
-    if (statePtr->flags & TCP_ASYNC_CONNECT) {
-	if (statePtr->flags & TCP_ASYNC_SOCKET) {
-	    timeOut = 0;
-	} else {
-	    timeOut = -1;
-	}
-	errno = 0;
-	state = TclUnixWaitForFile(statePtr->fds.fd,
-		TCL_WRITABLE | TCL_EXCEPTION, timeOut);
-	if (state & TCL_EXCEPTION) {
-	    return -1;
-	}
-	if (state & TCL_WRITABLE) {
-	    CLEAR_BITS(statePtr->flags, TCP_ASYNC_CONNECT);
-	} else if (timeOut == 0) {
-	    *errorCodePtr = errno = EWOULDBLOCK;
-	    return -1;
-	}
+    if (errorCodePtr != NULL && (statePtr->flags & TCP_ASYNC_FAILED)) {
+	*errorCodePtr = ENOTCONN;
+	return -1;
+    }
+
+    /*
+     * Check if an async connect is running. If not return ok
+     */
+
+    if (!(statePtr->flags & TCP_ASYNC_PENDING)) {
+	return 0;
+    }
+
+    if (errorCodePtr == NULL || (statePtr->flags & TCP_NONBLOCKING)) {
+        timeout = 0;
+    } else {
+        timeout = -1;
+    }
+    do {
+        if (TclUnixWaitForFile(statePtr->fds.fd,
+                                TCL_WRITABLE | TCL_EXCEPTION, timeout) != 0) {
+            TcpConnect(NULL, statePtr);
+        }
+        /* Do this only once in the nonblocking case and repeat it until the
+         * socket is final when blocking */
+    } while (timeout == -1 && statePtr->flags & TCP_ASYNC_CONNECT);
+
+    if (errorCodePtr != NULL) {
+        if (statePtr->flags & TCP_ASYNC_PENDING) {
+            *errorCodePtr = EAGAIN;
+            return -1;
+        } else if (statePtr->connectError != 0) {
+            *errorCodePtr = ENOTCONN;
+            return -1;
+        }
     }
     return 0;
 }
@@ -503,6 +558,7 @@ TcpOutputProc(
 	return -1;
     }
     written = send(statePtr->fds.fd, buf, (size_t) toWrite, 0);
+
     if (written > -1) {
 	return written;
     }
@@ -545,7 +601,7 @@ TcpCloseProc(
      * handlers are already deleted in the generic IO channel closing code
      * that called this function, so we do not have to delete them here.
      */
-    
+
     for (fds = &statePtr->fds; fds != NULL; fds = fds->next) {
 	if (fds->fd < 0) {
 	    continue;
@@ -554,7 +610,7 @@ TcpCloseProc(
 	if (close(fds->fd) < 0) {
 	    errorCode = errno;
 	}
-    
+
     }
     fds = statePtr->fds.next;
     while (fds != NULL) {
@@ -627,6 +683,74 @@ TcpClose2Proc(
 /*
  *----------------------------------------------------------------------
  *
+ * TcpHostPortList --
+ *
+ *	This function is called by the -gethostname and -getpeername
+ *	switches of TcpGetOptionProc() to add three list elements
+ *	with the textual representation of the given address to the
+ *	given DString.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Adds three elements do dsPtr
+ *
+ *----------------------------------------------------------------------
+ */
+static void
+TcpHostPortList(
+    Tcl_Interp *interp,
+    Tcl_DString *dsPtr,
+    address addr,
+    socklen_t salen)
+{
+#define SUPPRESS_RDNS_VAR "::tcl::unsupported::noReverseDNS"
+    char host[NI_MAXHOST], nhost[NI_MAXHOST], nport[NI_MAXSERV];
+    int flags = 0;
+
+    getnameinfo(&addr.sa, salen,
+                nhost, sizeof(nhost), nport, sizeof(nport),
+                NI_NUMERICHOST | NI_NUMERICSERV);
+    Tcl_DStringAppendElement(dsPtr, nhost);
+    /*
+     * We don't want to resolve INADDR_ANY and sin6addr_any; they
+     * can sometimes cause problems (and never have a name).
+     */
+    if (addr.sa.sa_family == AF_INET) {
+        if (addr.sa4.sin_addr.s_addr == INADDR_ANY) {
+            flags |= NI_NUMERICHOST;
+        }
+#ifndef NEED_FAKE_RFC2553
+    } else if (addr.sa.sa_family == AF_INET6) {
+        if ((IN6_ARE_ADDR_EQUAL(&addr.sa6.sin6_addr,
+                                &in6addr_any))
+            || (IN6_IS_ADDR_V4MAPPED(&addr.sa6.sin6_addr) &&
+                addr.sa6.sin6_addr.s6_addr[12] == 0 &&
+                addr.sa6.sin6_addr.s6_addr[13] == 0 &&
+                addr.sa6.sin6_addr.s6_addr[14] == 0 &&
+                addr.sa6.sin6_addr.s6_addr[15] == 0)) {
+            flags |= NI_NUMERICHOST;
+        }
+#endif /* NEED_FAKE_RFC2553 */
+    }
+    /* Check if reverse DNS has been switched off globally */
+    if (interp != NULL && Tcl_GetVar(interp, SUPPRESS_RDNS_VAR, 0) != NULL) {
+        flags |= NI_NUMERICHOST;
+    }
+    if (getnameinfo(&addr.sa, salen, host, sizeof(host), NULL, 0, flags) == 0) {
+        /* Reverse mapping worked */
+        Tcl_DStringAppendElement(dsPtr, host);
+    } else {
+        /* Reverse mappong failed - use the numeric rep once more */
+        Tcl_DStringAppendElement(dsPtr, nhost);
+    }
+    Tcl_DStringAppendElement(dsPtr, nport);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * TcpGetOptionProc --
  *
  *	Computes an option value for a TCP socket based channel, or a list of
@@ -656,10 +780,9 @@ TcpGetOptionProc(
 				 * initialized by caller. */
 {
     TcpState *statePtr = instanceData;
-    char host[NI_MAXHOST], port[NI_MAXSERV];
     size_t len = 0;
-    int reverseDNS = 0;
-#define SUPPRESS_RDNS_VAR "::tcl::unsupported::noReverseDNS"
+
+    WaitForConnect(statePtr, NULL);
 
     if (optionName != NULL) {
 	len = strlen(optionName);
@@ -668,46 +791,57 @@ TcpGetOptionProc(
     if ((len > 1) && (optionName[1] == 'e') &&
 	    (strncmp(optionName, "-error", len) == 0)) {
 	socklen_t optlen = sizeof(int);
-	int err, ret;
 
-        if (statePtr->status == 0) {
-            ret = getsockopt(statePtr->fds.fd, SOL_SOCKET, SO_ERROR,
-                    (char *) &err, &optlen);
-            if (ret < 0) {
-                err = errno;
-            }
+        if (statePtr->flags & TCP_ASYNC_CONNECT) {
+            /* Suppress errors as long as we are not done */
+            errno = 0;
+        } else if (statePtr->connectError != 0) {
+            errno = statePtr->connectError;
+            statePtr->connectError = 0;
         } else {
-            err = statePtr->status;
-            statePtr->status = 0;
+            int err;
+            getsockopt(statePtr->fds.fd, SOL_SOCKET, SO_ERROR,
+                    (char *) &err, &optlen);
+            errno = err;
+        }
+        if (errno != 0) {
+	    Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(errno), -1);
         }
-	if (err != 0) {
-	    Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(err), -1);
-	}
 	return TCL_OK;
     }
 
-    if (interp != NULL && Tcl_GetVar(interp, SUPPRESS_RDNS_VAR, 0) != NULL) {
-        reverseDNS = NI_NUMERICHOST;
+    if ((len > 1) && (optionName[1] == 'c') &&
+	    (strncmp(optionName, "-connecting", len) == 0)) {
+
+        Tcl_DStringAppend(dsPtr,
+                        (statePtr->flags & TCP_ASYNC_CONNECT) ? "1" : "0", -1);
+        return TCL_OK;
     }
-    
+
     if ((len == 0) || ((len > 1) && (optionName[1] == 'p') &&
 	    (strncmp(optionName, "-peername", len) == 0))) {
         address peername;
         socklen_t size = sizeof(peername);
 
-	if (getpeername(statePtr->fds.fd, &peername.sa, &size) >= 0) {
+	if ( (statePtr->flags & TCP_ASYNC_CONNECT) ) {
+	    /*
+	     * In async connect output an empty string
+	     */
+	    if (len == 0) {
+		Tcl_DStringAppendElement(dsPtr, "-peername");
+		Tcl_DStringAppendElement(dsPtr, "");
+	    } else {
+		return TCL_OK;
+	    }
+	} else if (getpeername(statePtr->fds.fd, &peername.sa, &size) >= 0) {
+	    /*
+	     * Peername fetch succeeded - output list
+	     */
 	    if (len == 0) {
 		Tcl_DStringAppendElement(dsPtr, "-peername");
 		Tcl_DStringStartSublist(dsPtr);
 	    }
-            
-	    getnameinfo(&peername.sa, size, host, sizeof(host), NULL, 0,
-                    NI_NUMERICHOST);
-	    Tcl_DStringAppendElement(dsPtr, host);
-	    getnameinfo(&peername.sa, size, host, sizeof(host), port,
-                    sizeof(port), reverseDNS | NI_NUMERICSERV);
-	    Tcl_DStringAppendElement(dsPtr, host);
-	    Tcl_DStringAppendElement(dsPtr, port);
+            TcpHostPortList(interp, dsPtr, peername, size);
 	    if (len) {
                 return TCL_OK;
             }
@@ -742,43 +876,18 @@ TcpGetOptionProc(
 	    Tcl_DStringAppendElement(dsPtr, "-sockname");
 	    Tcl_DStringStartSublist(dsPtr);
 	}
-	for (fds = &statePtr->fds; fds != NULL; fds = fds->next) {
-	    size = sizeof(sockname);
-	    if (getsockname(fds->fd, &(sockname.sa), &size) >= 0) {
-                int flags = reverseDNS;
-
-		found = 1;
-                getnameinfo(&sockname.sa, size, host, sizeof(host), NULL, 0,
-                        NI_NUMERICHOST);
-                Tcl_DStringAppendElement(dsPtr, host);
-
-                /*
-                 * We don't want to resolve INADDR_ANY and sin6addr_any; they
-                 * can sometimes cause problems (and never have a name).
-                 */
-
-                flags |= NI_NUMERICSERV;
-                if (sockname.sa.sa_family == AF_INET) {
-                    if (sockname.sa4.sin_addr.s_addr == INADDR_ANY) {
-                        flags |= NI_NUMERICHOST;
-                    }
-#ifndef NEED_FAKE_RFC2553
-                } else if (sockname.sa.sa_family == AF_INET6) {
-                    if ((IN6_ARE_ADDR_EQUAL(&sockname.sa6.sin6_addr,
-                                &in6addr_any))
-                        || (IN6_IS_ADDR_V4MAPPED(&sockname.sa6.sin6_addr) &&
-                            sockname.sa6.sin6_addr.s6_addr[12] == 0 &&
-                            sockname.sa6.sin6_addr.s6_addr[13] == 0 &&
-                            sockname.sa6.sin6_addr.s6_addr[14] == 0 &&
-                            sockname.sa6.sin6_addr.s6_addr[15] == 0)) {
-                        flags |= NI_NUMERICHOST;
-                    }
-#endif /* NEED_FAKE_RFC2553 */
-                }
-		getnameinfo(&sockname.sa, size, host, sizeof(host), port,
-                        sizeof(port), flags);
-		Tcl_DStringAppendElement(dsPtr, host);
-		Tcl_DStringAppendElement(dsPtr, port);
+	if ( (statePtr->flags & TCP_ASYNC_CONNECT) ) {
+	    /*
+	     * In async connect output an empty string
+	     */
+	     found = 1;
+	} else {
+	    for (fds = &statePtr->fds; fds != NULL; fds = fds->next) {
+		size = sizeof(sockname);
+		if (getsockname(fds->fd, &(sockname.sa), &size) >= 0) {
+		    found = 1;
+		    TcpHostPortList(interp, dsPtr, sockname, size);
+		}
 	    }
 	}
         if (found) {
@@ -796,7 +905,7 @@ TcpGetOptionProc(
     }
 
     if (len > 0) {
-	return Tcl_BadChannelOption(interp, optionName, "peername sockname");
+	return Tcl_BadChannelOption(interp, optionName, "connecting peername sockname");
     }
 
     return TCL_OK;
@@ -820,6 +929,35 @@ TcpGetOptionProc(
  */
 
 static void
+WrapNotify(
+    ClientData clientData,
+    int mask)
+{
+    TcpState *statePtr = (TcpState *) clientData;
+    int newmask = mask & statePtr->interest;
+
+    if (newmask == 0) {
+	/*
+	 * There was no overlap between the states the channel is
+	 * interested in notifications for, and the states that are
+	 * reported present on the file descriptor by select().  The
+	 * only way that can happen is when the channel is interested
+	 * in a writable condition, and only a readable state is reported
+	 * present (see TcpWatchProc() below).  In that case, signal back
+	 * to the caller the writable state, which is really an error
+	 * condition.  As an extra check on that assumption, check for
+	 * a non-zero value of errno before reporting an artificial
+	 * writable state.
+	 */
+	if (errno == 0) {
+	    return;
+	}
+	newmask = TCL_WRITABLE;
+    }
+    Tcl_NotifyChannel(statePtr->channel, newmask);
+}
+
+static void
 TcpWatchProc(
     ClientData instanceData,	/* The socket state. */
     int mask)			/* Events of interest; an OR-ed combination of
@@ -836,14 +974,36 @@ TcpWatchProc(
          */
     	return;
     }
-     
-    if (statePtr->flags & TCP_ASYNC_CONNECT) {
+
+    if (statePtr->flags & TCP_ASYNC_PENDING) {
         /* Async sockets use a FileHandler internally while connecting, so we
          * need to cache this request until the connection has succeeded. */
         statePtr->filehandlers = mask;
     } else if (mask) {
-        Tcl_CreateFileHandler(statePtr->fds.fd, mask,
-                (Tcl_FileProc *) Tcl_NotifyChannel, statePtr->channel);
+
+	/*
+	 * Whether it is a bug or feature or otherwise, it is a fact
+	 * of life that on at least some Linux kernels select() fails
+	 * to report that a socket file descriptor is writable when
+	 * the other end of the socket is closed.  This is in contrast
+	 * to the guarantees Tcl makes that its channels become
+	 * writable and fire writable events on an error conditon.
+	 * This has caused a leak of file descriptors in a state of
+	 * background flushing.  See Tcl ticket 1758a0b603.
+	 *
+	 * As a workaround, when our caller indicates an interest in
+	 * writable notifications, we must tell the notifier built
+	 * around select() that we are interested in the readable state
+	 * of the file descriptor as well, as that is the only reliable
+	 * means to get notified of error conditions.  Then it is the
+	 * task of WrapNotify() above to untangle the meaning of these
+	 * channel states and report the chan events as best it can.
+	 * We save a copy of the mask passed in to assist with that.
+	 */
+
+	statePtr->interest = mask;
+        Tcl_CreateFileHandler(statePtr->fds.fd, mask|TCL_READABLE,
+                (Tcl_FileProc *) WrapNotify, statePtr);
     } else {
         Tcl_DeleteFileHandler(statePtr->fds.fd);
     }
@@ -885,7 +1045,7 @@ TcpGetHandleProc(
  *
  * TcpAsyncCallback --
  *
- *	Called by the event handler that CreateClientSocket sets up
+ *	Called by the event handler that TcpConnect sets up
  *	internally for [socket -async] to get notified when the
  *	asyncronous connection attempt has succeeded or failed.
  *
@@ -898,13 +1058,13 @@ TcpAsyncCallback(
 				 * TCL_READABLE, TCL_WRITABLE and
 				 * TCL_EXCEPTION. */
 {
-    CreateClientSocket(NULL, clientData);
+    TcpConnect(NULL, clientData);
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * CreateClientSocket --
+ * TcpConnect --
  *
  *	This function opens a new socket in client mode.
  *
@@ -932,33 +1092,32 @@ TcpAsyncCallback(
  */
 
 static int
-CreateClientSocket(
+TcpConnect(
     Tcl_Interp *interp,		/* For error reporting; can be NULL. */
-    TcpState *state)
+    TcpState *statePtr)
 {
     socklen_t optlen;
-    int async_callback = (state->addr != NULL);
-    int status;
-    int async = state->flags & TCP_ASYNC_CONNECT;
+    int async_callback = statePtr->flags & TCP_ASYNC_PENDING;
+    int ret = -1, error = errno;
+    int async = statePtr->flags & TCP_ASYNC_CONNECT;
 
     if (async_callback) {
         goto reenter;
     }
 
-    for (state->addr = state->addrlist; state->addr != NULL;
-            state->addr = state->addr->ai_next) {
-	status = -1;
+    for (statePtr->addr = statePtr->addrlist; statePtr->addr != NULL;
+            statePtr->addr = statePtr->addr->ai_next) {
+
+        for (statePtr->myaddr = statePtr->myaddrlist; statePtr->myaddr != NULL;
+                statePtr->myaddr = statePtr->myaddr->ai_next) {
+            int reuseaddr = 1;
 
-        for (state->myaddr = state->myaddrlist; state->myaddr != NULL;
-                state->myaddr = state->myaddr->ai_next) {
-            int reuseaddr;
-            
 	    /*
 	     * No need to try combinations of local and remote addresses of
 	     * different families.
 	     */
 
-	    if (state->myaddr->ai_family != state->addr->ai_family) {
+	    if (statePtr->myaddr->ai_family != statePtr->addr->ai_family) {
 		continue;
 	    }
 
@@ -967,13 +1126,14 @@ CreateClientSocket(
              * iteration.
              */
 
-            if (state->fds.fd >= 0) {
-		close(state->fds.fd);
-		state->fds.fd = -1;
+            if (statePtr->fds.fd >= 0) {
+		close(statePtr->fds.fd);
+		statePtr->fds.fd = -1;
+                errno = 0;
 	    }
 
-	    state->fds.fd = socket(state->addr->ai_family, SOCK_STREAM, 0);
-	    if (state->fds.fd < 0) {
+	    statePtr->fds.fd = socket(statePtr->addr->ai_family, SOCK_STREAM, 0);
+	    if (statePtr->fds.fd < 0) {
 		continue;
 	    }
 
@@ -981,29 +1141,32 @@ CreateClientSocket(
 	     * Set the close-on-exec flag so that the socket will not get
 	     * inherited by child processes.
 	     */
-	    
-	    fcntl(state->fds.fd, F_SETFD, FD_CLOEXEC);
-	    
+
+	    fcntl(statePtr->fds.fd, F_SETFD, FD_CLOEXEC);
+
 	    /*
 	     * Set kernel space buffering
 	     */
-	    
-	    TclSockMinimumBuffers(INT2PTR(state->fds.fd), SOCKET_BUFSIZE);
-    
+
+	    TclSockMinimumBuffers(INT2PTR(statePtr->fds.fd), SOCKET_BUFSIZE);
+
 	    if (async) {
-		status = TclUnixSetBlockingMode(state->fds.fd,
-                        TCL_MODE_NONBLOCKING);
-		if (status < 0) {
+                ret = TclUnixSetBlockingMode(statePtr->fds.fd,TCL_MODE_NONBLOCKING);
+                if (ret < 0) {
                     continue;
-		}
-	    }
+                }
+            }
+
+            /* Gotta reset the error variable here, before we use it for the
+             * first time in this iteration. */
+            error = 0;
 
-            reuseaddr = 1;
-            (void) setsockopt(state->fds.fd, SOL_SOCKET, SO_REUSEADDR,
+            (void) setsockopt(statePtr->fds.fd, SOL_SOCKET, SO_REUSEADDR,
                     (char *) &reuseaddr, sizeof(reuseaddr));
-            status = bind(state->fds.fd, state->myaddr->ai_addr,
-                    state->myaddr->ai_addrlen);
-            if (status < 0) {
+            ret = bind(statePtr->fds.fd, statePtr->myaddr->ai_addr,
+                    statePtr->myaddr->ai_addrlen);
+            if (ret < 0) {
+                error = errno;
                 continue;
             }
 
@@ -1013,16 +1176,20 @@ CreateClientSocket(
 	     * will set up a file handler on the socket if she is interested
 	     * in being informed when the connect completes.
 	     */
-	    
-	    status = connect(state->fds.fd, state->addr->ai_addr,
-                    state->addr->ai_addrlen);
-	    if (status < 0 && errno == EINPROGRESS) {
-                Tcl_CreateFileHandler(state->fds.fd,
-                        TCL_WRITABLE|TCL_EXCEPTION, TcpAsyncCallback, state);
+
+	    ret = connect(statePtr->fds.fd, statePtr->addr->ai_addr,
+                        statePtr->addr->ai_addrlen);
+            if (ret < 0) error = errno;
+	    if (ret < 0 && errno == EINPROGRESS) {
+                Tcl_CreateFileHandler(statePtr->fds.fd,
+                        TCL_WRITABLE|TCL_EXCEPTION, TcpAsyncCallback, statePtr);
+                errno = EWOULDBLOCK;
+                SET_BITS(statePtr->flags, TCP_ASYNC_PENDING);
                 return TCL_OK;
 
             reenter:
-                Tcl_DeleteFileHandler(state->fds.fd);
+                CLEAR_BITS(statePtr->flags, TCP_ASYNC_PENDING);
+                Tcl_DeleteFileHandler(statePtr->fds.fd);
 
                 /*
                  * Read the error state from the socket to see if the async
@@ -1032,26 +1199,31 @@ CreateClientSocket(
                  */
 
                 optlen = sizeof(int);
-                getsockopt(state->fds.fd, SOL_SOCKET, SO_ERROR,
-                        (char *) &status, &optlen);
-                state->status = status;
+
+                getsockopt(statePtr->fds.fd, SOL_SOCKET, SO_ERROR,
+                        (char *) &error, &optlen);
+                errno = error;
             }
-	    if (status == 0) {
-		CLEAR_BITS(state->flags, TCP_ASYNC_CONNECT);
+	    if (error == 0) {
 		goto out;
 	    }
 	}
     }
 
 out:
-
+    statePtr->connectError = error;
+    CLEAR_BITS(statePtr->flags, TCP_ASYNC_CONNECT);
     if (async_callback) {
         /*
          * An asynchonous connection has finally succeeded or failed.
          */
 
-        TcpWatchProc(state, state->filehandlers);
-        TclUnixSetBlockingMode(state->fds.fd, state->cachedBlocking);
+        TcpWatchProc(statePtr, statePtr->filehandlers);
+        TclUnixSetBlockingMode(statePtr->fds.fd, statePtr->cachedBlocking);
+
+        if (error != 0) {
+            SET_BITS(statePtr->flags, TCP_ASYNC_FAILED);
+        }
 
         /*
          * We need to forward the writable event that brought us here, bcasue
@@ -1062,8 +1234,11 @@ out:
          * the event mechanism one roundtrip through select().
          */
 
-        Tcl_NotifyChannel(state->channel, TCL_WRITABLE);
-    } else if (status != 0) {
+	if (statePtr->cachedBlocking == TCL_MODE_NONBLOCKING) {
+	    Tcl_NotifyChannel(statePtr->channel, TCL_WRITABLE);
+	}
+    }
+    if (error != 0) {
         /*
          * Failure for either a synchronous connection, or an async one that
          * failed before it could enter background mode, e.g. because an
@@ -1071,6 +1246,7 @@ out:
          */
 
         if (interp != NULL) {
+            errno = error;
             Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                     "couldn't open socket: %s", Tcl_PosixError(interp)));
         }
@@ -1107,7 +1283,7 @@ Tcl_OpenTcpClient(
 				 * connect. Otherwise we do a blocking
 				 * connect. */
 {
-    TcpState *state;
+    TcpState *statePtr;
     const char *errorMsg = NULL;
     struct addrinfo *addrlist = NULL, *myaddrlist = NULL;
     char channelName[SOCK_CHAN_LENGTH];
@@ -1132,32 +1308,32 @@ Tcl_OpenTcpClient(
     /*
      * Allocate a new TcpState for this socket.
      */
-    state = ckalloc(sizeof(TcpState));
-    memset(state, 0, sizeof(TcpState));
-    state->flags = async ? TCP_ASYNC_CONNECT : 0;
-    state->cachedBlocking = TCL_MODE_BLOCKING;
-    state->addrlist = addrlist;
-    state->myaddrlist = myaddrlist;
-    state->fds.fd = -1;
+    statePtr = ckalloc(sizeof(TcpState));
+    memset(statePtr, 0, sizeof(TcpState));
+    statePtr->flags = async ? TCP_ASYNC_CONNECT : 0;
+    statePtr->cachedBlocking = TCL_MODE_BLOCKING;
+    statePtr->addrlist = addrlist;
+    statePtr->myaddrlist = myaddrlist;
+    statePtr->fds.fd = -1;
 
     /*
      * Create a new client socket and wrap it in a channel.
      */
-    if (CreateClientSocket(interp, state) != TCL_OK) {
-        TcpCloseProc(state, NULL);
+    if (TcpConnect(interp, statePtr) != TCL_OK) {
+        TcpCloseProc(statePtr, NULL);
         return NULL;
     }
 
-    sprintf(channelName, SOCK_TEMPLATE, (long) state);
+    sprintf(channelName, SOCK_TEMPLATE, (long) statePtr);
 
-    state->channel = Tcl_CreateChannel(&tcpChannelType, channelName, state,
+    statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName, statePtr,
             (TCL_READABLE | TCL_WRITABLE));
-    if (Tcl_SetChannelOption(interp, state->channel, "-translation",
+    if (Tcl_SetChannelOption(interp, statePtr->channel, "-translation",
 	    "auto crlf") == TCL_ERROR) {
-	Tcl_Close(NULL, state->channel);
+	Tcl_Close(NULL, statePtr->channel);
 	return NULL;
     }
-    return state->channel;
+    return statePtr->channel;
 }
 
 /*
@@ -1180,7 +1356,7 @@ Tcl_Channel
 Tcl_MakeTcpClientChannel(
     ClientData sock)		/* The socket to wrap up into a channel. */
 {
-    return TclpMakeTcpClientChannelMode(sock, (TCL_READABLE | TCL_WRITABLE));
+    return (Tcl_Channel) TclpMakeTcpClientChannelMode(sock, (TCL_READABLE | TCL_WRITABLE));
 }
 
 /*
@@ -1200,9 +1376,9 @@ Tcl_MakeTcpClientChannel(
  *----------------------------------------------------------------------
  */
 
-Tcl_Channel
+void *
 TclpMakeTcpClientChannelMode(
-    ClientData sock,		/* The socket to wrap up into a channel. */
+    void *sock,		/* The socket to wrap up into a channel. */
     int mode)			/* ORed combination of TCL_READABLE and
 				 * TCL_WRITABLE to indicate file mode. */
 {
@@ -1283,28 +1459,28 @@ Tcl_OpenTcpServer(
 	    }
 	    continue;
 	}
-	
+
 	/*
 	 * Set the close-on-exec flag so that the socket will not get
 	 * inherited by child processes.
 	 */
-	
+
 	fcntl(sock, F_SETFD, FD_CLOEXEC);
-	
+
 	/*
 	 * Set kernel space buffering
 	 */
-	
+
 	TclSockMinimumBuffers(INT2PTR(sock), SOCKET_BUFSIZE);
-	
+
 	/*
 	 * Set up to reuse server addresses automatically and bind to the
 	 * specified port.
 	 */
-	
-	(void) setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, 
+
+	(void) setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
 		(char *) &reuseaddr, sizeof(reuseaddr));
-	
+
         /*
          * Make sure we use the same port number when opening two server
          * sockets for IPv4 and IPv6 on a random port.
@@ -1333,8 +1509,9 @@ Tcl_OpenTcpServer(
 	    if (howfar < BIND) {
 		howfar = BIND;
 		my_errno = errno;
-	    }       
+	    }
             close(sock);
+            sock = -1;
             continue;
         }
         if (port == 0 && chosenport == 0) {
@@ -1357,13 +1534,14 @@ Tcl_OpenTcpServer(
 		my_errno = errno;
 	    }
             close(sock);
+            sock = -1;
             continue;
         }
         if (statePtr == NULL) {
             /*
              * Allocate a new TcpState for this socket.
              */
-            
+
             statePtr = ckalloc(sizeof(TcpState));
             memset(statePtr, 0, sizeof(TcpState));
             statePtr->acceptProc = acceptProc;
@@ -1378,12 +1556,12 @@ Tcl_OpenTcpServer(
         newfds->fd = sock;
         newfds->statePtr = statePtr;
         fds = newfds;
-	
+
         /*
          * Set up the callback mechanism for accepting connections from new
          * clients.
          */
-        
+
         Tcl_CreateFileHandler(sock, TCL_READABLE, TcpAccept, fds);
     }
 
@@ -1442,7 +1620,7 @@ TcpAccept(
     socklen_t len;		/* For accept interface */
     char channelName[SOCK_CHAN_LENGTH];
     char host[NI_MAXHOST], port[NI_MAXSERV];
-    
+
     len = sizeof(addr);
     newsock = accept(fds->fd, &addr.sa, &len);
     if (newsock < 0) {
diff --git a/unix/tclUnixTest.c b/unix/tclUnixTest.c
index 46fc972..c5ac52a 100644
--- a/unix/tclUnixTest.c
+++ b/unix/tclUnixTest.c
@@ -63,10 +63,11 @@ static const char *gotsig = "0";
  */
 
 static Tcl_CmdProc TestalarmCmd;
-static Tcl_CmdProc TestchmodCmd;
+static Tcl_ObjCmdProc TestchmodCmd;
 static Tcl_CmdProc TestfilehandlerCmd;
 static Tcl_CmdProc TestfilewaitCmd;
 static Tcl_CmdProc TestfindexecutableCmd;
+static Tcl_ObjCmdProc TestforkObjCmd;
 static Tcl_CmdProc TestgetdefencdirCmd;
 static Tcl_CmdProc TestgetopenfileCmd;
 static Tcl_CmdProc TestgotsigCmd;
@@ -95,7 +96,7 @@ int
 TclplatformtestInit(
     Tcl_Interp *interp)		/* Interpreter to add commands to. */
 {
-    Tcl_CreateCommand(interp, "testchmod", TestchmodCmd,
+    Tcl_CreateObjCommand(interp, "testchmod", TestchmodCmd,
 	    NULL, NULL);
     Tcl_CreateCommand(interp, "testfilehandler", TestfilehandlerCmd,
 	    NULL, NULL);
@@ -103,6 +104,8 @@ TclplatformtestInit(
 	    NULL, NULL);
     Tcl_CreateCommand(interp, "testfindexecutable", TestfindexecutableCmd,
 	    NULL, NULL);
+    Tcl_CreateObjCommand(interp, "testfork", TestforkObjCmd,
+        NULL, NULL);
     Tcl_CreateCommand(interp, "testgetopenfile", TestgetopenfileCmd,
 	    NULL, NULL);
     Tcl_CreateCommand(interp, "testgetdefenc", TestgetdefencdirCmd,
@@ -200,7 +203,7 @@ TestfilehandlerCmd(
 	    return TCL_ERROR;
 	}
 	sprintf(buf, "%d %d", pipePtr->readCount, pipePtr->writeCount);
-	Tcl_SetResult(interp, buf, TCL_VOLATILE);
+	Tcl_AppendResult(interp, buf, NULL);
     } else if (strcmp(argv[1], "create") == 0) {
 	if (argc != 5) {
 	    Tcl_AppendResult(interp, "wrong # arguments: should be \"",
@@ -217,8 +220,8 @@ TestfilehandlerCmd(
 	    fcntl(GetFd(pipePtr->readFile), F_SETFL, O_NONBLOCK);
 	    fcntl(GetFd(pipePtr->writeFile), F_SETFL, O_NONBLOCK);
 #else
-	    Tcl_SetResult(interp, "can't make pipes non-blocking",
-		    TCL_STATIC);
+	    Tcl_AppendResult(interp, "can't make pipes non-blocking",
+		    NULL);
 	    return TCL_ERROR;
 #endif
 	}
@@ -281,7 +284,7 @@ TestfilehandlerCmd(
 
 	memset(buffer, 'b', 10);
 	TclFormatInt(buf, write(GetFd(pipePtr->writeFile), buffer, 10));
-	Tcl_SetResult(interp, buf, TCL_VOLATILE);
+	Tcl_AppendResult(interp, buf, NULL);
     } else if (strcmp(argv[1], "oneevent") == 0) {
 	Tcl_DoOneEvent(TCL_FILE_EVENTS|TCL_DONT_WAIT);
     } else if (strcmp(argv[1], "wait") == 0) {
@@ -390,7 +393,7 @@ TestfilewaitCmd(
     if (Tcl_GetChannelHandle(channel,
 	    (mask & TCL_READABLE) ? TCL_READABLE : TCL_WRITABLE,
 	    (ClientData*) &data) != TCL_OK) {
-	Tcl_SetResult(interp, "couldn't get channel file", TCL_STATIC);
+	Tcl_AppendResult(interp, "couldn't get channel file", NULL);
 	return TCL_ERROR;
     }
     fd = PTR2INT(data);
@@ -526,6 +529,51 @@ TestsetdefencdirCmd(
     Tcl_SetDefaultEncodingDir(argv[1]);
     return TCL_OK;
 }
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TestforkObjCmd --
+ *
+ *	This function implements the "testfork" command. It is used to
+ *	fork the Tcl process for specific test cases.
+ *
+ * Results:
+ *	A standard Tcl result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+TestforkObjCmd(
+    ClientData clientData,	/* Not used. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const *objv)		/* Argument strings. */
+{
+    pid_t pid;
+
+    if (objc != 1) {
+        Tcl_WrongNumArgs(interp, 1, objv, "");
+        return TCL_ERROR;
+    }
+    pid = fork();
+    if (pid == -1) {
+        Tcl_AppendResult(interp,
+                "Cannot fork", NULL);
+        return TCL_ERROR;
+    }
+    /* Only needed when pthread_atfork is not present,
+     * should not hurt otherwise. */
+    if (pid==0) {
+	Tcl_InitNotifier();
+    }
+    Tcl_SetObjResult(interp, Tcl_NewIntObj(pid));
+    return TCL_OK;
+}
 
 /*
  *----------------------------------------------------------------------
@@ -692,29 +740,25 @@ static int
 TestchmodCmd(
     ClientData dummy,			/* Not used. */
     Tcl_Interp *interp,			/* Current interpreter. */
-    int argc,				/* Number of arguments. */
-    const char **argv)			/* Argument strings. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const *objv)		/* Argument strings. */
 {
     int i, mode;
-    char *rest;
 
-    if (argc < 2) {
-    usage:
-	Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-		" mode file ?file ...?", NULL);
+    if (objc < 2) {
+    Tcl_WrongNumArgs(interp, 1, objv, "mode file ?file ...?");
 	return TCL_ERROR;
     }
 
-    mode = (int) strtol(argv[1], &rest, 8);
-    if ((rest == argv[1]) || (*rest != '\0')) {
-	goto usage;
+    if (Tcl_GetIntFromObj(interp, objv[1], &mode) != TCL_OK) {
+	return TCL_ERROR;
     }
 
-    for (i = 2; i < argc; i++) {
+    for (i = 2; i < objc; i++) {
 	Tcl_DString buffer;
 	const char *translated;
 
-	translated = Tcl_TranslateFileName(interp, argv[i], &buffer);
+	translated = Tcl_TranslateFileName(interp, Tcl_GetString(objv[i]), &buffer);
 	if (translated == NULL) {
 	    return TCL_ERROR;
 	}
diff --git a/unix/tclUnixThrd.c b/unix/tclUnixThrd.c
index 789dbb6..d34bc88 100644
--- a/unix/tclUnixThrd.c
+++ b/unix/tclUnixThrd.c
@@ -659,6 +659,7 @@ TclpReaddir(
     return TclOSreaddir(dir);
 }
 
+#undef TclpInetNtoa
 char *
 TclpInetNtoa(
     struct in_addr addr)
@@ -726,6 +727,7 @@ TclpFreeAllocCache(
 	 */
 
 	TclFreeAllocCache(ptr);
+	pthread_setspecific(key, NULL);
 
     } else if (initialized) {
 	/*
diff --git a/unix/tclUnixThrd.h b/unix/tclUnixThrd.h
index 6a73132..f03b530 100644
--- a/unix/tclUnixThrd.h
+++ b/unix/tclUnixThrd.h
@@ -8,7 +8,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  */
- 
+
 #ifndef _TCLUNIXTHRD
 #define _TCLUNIXTHRD
 
diff --git a/unix/tclUnixTime.c b/unix/tclUnixTime.c
index c7921fe..315bcf9 100644
--- a/unix/tclUnixTime.c
+++ b/unix/tclUnixTime.c
@@ -16,9 +16,6 @@
 #include <mach/mach_time.h>
 #endif
 
-#define TM_YEAR_BASE 1900
-#define IsLeapYear(x)	(((x)%4 == 0) && ((x)%100 != 0 || (x)%400 == 0))
-
 /*
  * TclpGetDate is coded to return a pointer to a 'struct tm'. For thread
  * safety, this structure must be in thread-specific data. The 'tmKey'
@@ -202,7 +199,7 @@ TclpWideClicksToNanoseconds(
 #ifdef MAC_OSX_TCL
 	static mach_timebase_info_data_t tb;
 	static uint64_t maxClicksForUInt64;
-	
+
 	if (!tb.denom) {
 	    mach_timebase_info(&tb);
 	    maxClicksForUInt64 = UINT64_MAX / tb.numer;
@@ -503,7 +500,7 @@ SetTZIfNecessary(void)
 	if (lastTZ == NULL) {
 	    Tcl_CreateExitHandler(CleanupMemory, NULL);
 	} else {
-	    Tcl_Free(lastTZ);
+	    ckfree(lastTZ);
 	}
 	lastTZ = ckalloc(strlen(newTZ) + 1);
 	strcpy(lastTZ, newTZ);
diff --git a/unix/tclXtNotify.c b/unix/tclXtNotify.c
index 50eb4a2..a5d92d6 100644
--- a/unix/tclXtNotify.c
+++ b/unix/tclXtNotify.c
@@ -16,9 +16,6 @@
 #include <X11/Intrinsic.h>
 #include "tclInt.h"
 
-#ifndef CONST86
-#   define CONST86
-#endif
 /*
  * This structure is used to keep track of the notifier info for a a
  * registered file.
@@ -80,15 +77,15 @@ static int initialized = 0;
  */
 
 static int		FileHandlerEventProc(Tcl_Event *evPtr, int flags);
-static void		FileProc(ClientData clientData, int *source,
+static void		FileProc(XtPointer clientData, int *source,
 			    XtInputId *id);
 static void		NotifierExitHandler(ClientData clientData);
-static void		TimerProc(ClientData clientData, XtIntervalId *id);
+static void		TimerProc(XtPointer clientData, XtIntervalId *id);
 static void		CreateFileHandler(int fd, int mask,
 			    Tcl_FileProc *proc, ClientData clientData);
 static void		DeleteFileHandler(int fd);
-static void		SetTimer(CONST86 Tcl_Time * timePtr);
-static int		WaitForEvent(CONST86 Tcl_Time * timePtr);
+static void		SetTimer(const Tcl_Time * timePtr);
+static int		WaitForEvent(const Tcl_Time * timePtr);
 
 /*
  * Functions defined in this file for use by users of the Xt Notifier:
@@ -184,7 +181,7 @@ TclSetAppContext(
 void
 InitNotifier(void)
 {
-    Tcl_NotifierProcs notifier;
+    Tcl_NotifierProcs np;
 
     /*
      * Only reinitialize if we are not in exit handling. The notifier can get
@@ -196,11 +193,15 @@ InitNotifier(void)
 	return;
     }
 
-    notifier.createFileHandlerProc = CreateFileHandler;
-    notifier.deleteFileHandlerProc = DeleteFileHandler;
-    notifier.setTimerProc = SetTimer;
-    notifier.waitForEventProc = WaitForEvent;
-    Tcl_SetNotifier(&notifier);
+    np.createFileHandlerProc = CreateFileHandler;
+    np.deleteFileHandlerProc = DeleteFileHandler;
+    np.setTimerProc = SetTimer;
+    np.waitForEventProc = WaitForEvent;
+    np.initNotifierProc = Tcl_InitNotifier;
+    np.finalizeNotifierProc = Tcl_FinalizeNotifier;
+    np.alertNotifierProc = Tcl_AlertNotifier;
+    np.serviceModeHookProc = Tcl_ServiceModeHook;
+    Tcl_SetNotifier(&np);
 
     /*
      * DO NOT create the application context yet; doing so would prevent
@@ -208,7 +209,7 @@ InitNotifier(void)
      */
 
     initialized = 1;
-    memset(&notifier, 0, sizeof(notifier));
+    memset(&np, 0, sizeof(np));
     Tcl_CreateExitHandler(NotifierExitHandler, NULL);
 }
 
@@ -265,7 +266,7 @@ NotifierExitHandler(
 
 static void
 SetTimer(
-    CONST86 Tcl_Time *timePtr)		/* Timeout value, may be NULL. */
+    const Tcl_Time *timePtr)		/* Timeout value, may be NULL. */
 {
     long timeout;
 
@@ -304,7 +305,7 @@ SetTimer(
 
 static void
 TimerProc(
-    ClientData clientData, /* Not used. */
+    XtPointer clientData, /* Not used. */
     XtIntervalId *id)
 {
     if (*id != notifier.currentTimeout) {
@@ -491,7 +492,7 @@ DeleteFileHandler(
 
 static void
 FileProc(
-    ClientData clientData,
+    XtPointer clientData,
     int *fd,
     XtInputId *id)
 {
@@ -629,7 +630,7 @@ FileHandlerEventProc(
 
 static int
 WaitForEvent(
-    CONST86 Tcl_Time *timePtr)		/* Maximum block time, or NULL. */
+    const Tcl_Time *timePtr)		/* Maximum block time, or NULL. */
 {
     int timeout;
 
diff --git a/unix/tclXtTest.c b/unix/tclXtTest.c
index fcb0773..f7c2652 100644
--- a/unix/tclXtTest.c
+++ b/unix/tclXtTest.c
@@ -15,7 +15,7 @@
 #include <X11/Intrinsic.h>
 #include "tcl.h"
 
-static Tcl_CmdProc TesteventloopCmd;
+static Tcl_ObjCmdProc TesteventloopCmd;
 extern DLLEXPORT Tcl_PackageInitProc Tclxttest_Init;
 
 /*
@@ -53,7 +53,7 @@ Tclxttest_Init(
     }
     XtToolkitInitialize();
     InitNotifier();
-    Tcl_CreateCommand(interp, "testeventloop", TesteventloopCmd,
+    Tcl_CreateObjCommand(interp, "testeventloop", TesteventloopCmd,
 	    NULL, NULL);
     return TCL_OK;
 }
@@ -80,21 +80,20 @@ static int
 TesteventloopCmd(
     ClientData clientData,	/* Not used. */
     Tcl_Interp *interp,		/* Current interpreter. */
-    int argc,			/* Number of arguments. */
-    const char **argv)		/* Argument strings. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
 {
     static int *framePtr = NULL;/* Pointer to integer on stack frame of
 				 * innermost invocation of the "wait"
 				 * subcommand. */
 
-    if (argc < 2) {
-	Tcl_AppendResult(interp, "wrong # arguments: should be \"", argv[0],
-		" option ... \"", NULL);
+    if (objc < 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "option ...");
 	return TCL_ERROR;
     }
-    if (strcmp(argv[1], "done") == 0) {
+    if (strcmp(Tcl_GetString(objv[1]), "done") == 0) {
 	*framePtr = 1;
-    } else if (strcmp(argv[1], "wait") == 0) {
+    } else if (strcmp(Tcl_GetString(objv[1]), "wait") == 0) {
 	int *oldFramePtr;
 	int done;
 	int oldMode = Tcl_SetServiceMode(TCL_SERVICE_ALL);
@@ -118,7 +117,7 @@ TesteventloopCmd(
 	(void) Tcl_SetServiceMode(oldMode);
 	framePtr = oldFramePtr;
     } else {
-	Tcl_AppendResult(interp, "bad option \"", argv[1],
+	Tcl_AppendResult(interp, "bad option \"", Tcl_GetString(objv[1]),
 		"\": must be done or wait", NULL);
 	return TCL_ERROR;
     }
diff --git a/unix/tclooConfig.sh b/unix/tclooConfig.sh
index dce540a..55fe75f 100644
--- a/unix/tclooConfig.sh
+++ b/unix/tclooConfig.sh
@@ -15,5 +15,5 @@ TCLOO_LIB_SPEC=""
 TCLOO_STUB_LIB_SPEC=""
 TCLOO_INCLUDE_SPEC=""
 TCLOO_PRIVATE_INCLUDE_SPEC=""
-TCLOO_CFLAGS=-DUSE_TCLOO_STUBS
-TCLOO_VERSION=0.7
+TCLOO_CFLAGS=""
+TCLOO_VERSION=1.0.3
diff --git a/win/Makefile.in b/win/Makefile.in
index 8ea4f0a..00c5cf2 100644..100755
--- a/win/Makefile.in
+++ b/win/Makefile.in
@@ -82,6 +82,11 @@ CFLAGS_OPTIMIZE	= @CFLAGS_OPTIMIZE@
 #CFLAGS = 		$(CFLAGS_DEBUG) $(CFLAGS_OPTIMIZE)
 CFLAGS = 		@CFLAGS@ @CFLAGS_DEFAULT@ -DUNICODE -D_UNICODE
 
+# To compile without backward compatibility and deprecated code uncomment the
+# following
+NO_DEPRECATED_FLAGS	=
+#NO_DEPRECATED_FLAGS	= -DTCL_NO_DEPRECATED
+
 # To enable compilation debugging reverse the comment characters on one of the
 # following lines.
 COMPILE_DEBUG_FLAGS =
@@ -90,7 +95,7 @@ COMPILE_DEBUG_FLAGS =
 
 SRC_DIR			= @srcdir@
 ROOT_DIR		= @srcdir@/..
-TOP_DIR			= $(shell cd @srcdir@/..; pwd)
+TOP_DIR			= $(shell cd @srcdir@/..; pwd -P)
 GENERIC_DIR		= $(TOP_DIR)/generic
 TOMMATH_DIR		= $(TOP_DIR)/libtommath
 WIN_DIR			= $(TOP_DIR)/win
@@ -105,6 +110,7 @@ GENERIC_DIR_NATIVE	= $(shell $(CYGPATH) '$(GENERIC_DIR)' | sed 's!\\!/!g')
 TOMMATH_DIR_NATIVE	= $(shell $(CYGPATH) '$(TOMMATH_DIR)' | sed 's!\\!/!g')
 WIN_DIR_NATIVE		= $(shell $(CYGPATH) '$(WIN_DIR)' | sed 's!\\!/!g')
 ROOT_DIR_NATIVE		= $(shell $(CYGPATH) '$(ROOT_DIR)' | sed 's!\\!/!g')
+ZLIB_DIR_NATIVE		= $(shell $(CYGPATH) '$(ZLIB_DIR)' | sed 's!\\!/!g')
 #GENERIC_DIR_NATIVE	= $(GENERIC_DIR)
 #TOMMATH_DIR_NATIVE	= $(TOMMATH_DIR)
 #WIN_DIR_NATIVE		= $(WIN_DIR)
@@ -112,7 +118,7 @@ ROOT_DIR_NATIVE		= $(shell $(CYGPATH) '$(ROOT_DIR)' | sed 's!\\!/!g')
 
 # Fully qualify library path so that `make test`
 # does not depend on the current directory.
-LIBRARY_DIR1		= $(shell cd '$(ROOT_DIR_NATIVE)/library' ; pwd)
+LIBRARY_DIR1		= $(shell cd '$(ROOT_DIR_NATIVE)/library' ; pwd -P)
 LIBRARY_DIR             = $(shell $(CYGPATH) '$(LIBRARY_DIR1)' | sed 's!\\!/!g')
 DLLSUFFIX		= @DLLSUFFIX@
 LIBSUFFIX		= @LIBSUFFIX@
@@ -184,10 +190,10 @@ SHELL		= @SHELL@
 RM		= rm -f
 COPY		= cp
 
-CC_SWITCHES = ${CFLAGS} ${CFLAGS_WARNING} ${TCL_SHLIB_CFLAGS} -I"${ZLIB_DIR}" \
--I"${GENERIC_DIR_NATIVE}" -DTCL_TOMMATH -DMP_PREC=4 -I"${TOMMATH_DIR_NATIVE}" \
--I"${WIN_DIR_NATIVE}" ${AC_FLAGS} \
-${COMPILE_DEBUG_FLAGS}
+CC_SWITCHES = ${CFLAGS} ${CFLAGS_WARNING} ${TCL_SHLIB_CFLAGS} \
+-I"${ZLIB_DIR_NATIVE}" -I"${GENERIC_DIR_NATIVE}" -DTCL_TOMMATH \
+-DMP_PREC=4 -I"${TOMMATH_DIR_NATIVE}" -I"${WIN_DIR_NATIVE}" \
+${AC_FLAGS} ${COMPILE_DEBUG_FLAGS} ${NO_DEPRECATED_FLAGS}
 
 CC_OBJNAME = @CC_OBJNAME@
 CC_EXENAME = @CC_EXENAME@
@@ -220,12 +226,14 @@ GENERIC_OBJS = \
 	tclCmdIL.$(OBJEXT) \
 	tclCmdMZ.$(OBJEXT) \
 	tclCompCmds.$(OBJEXT) \
+	tclCompCmdsGR.$(OBJEXT) \
 	tclCompCmdsSZ.$(OBJEXT) \
 	tclCompExpr.$(OBJEXT) \
 	tclCompile.$(OBJEXT) \
 	tclConfig.$(OBJEXT) \
 	tclDate.$(OBJEXT) \
 	tclDictObj.$(OBJEXT) \
+	tclDisassemble.$(OBJEXT) \
 	tclEncoding.$(OBJEXT) \
 	tclEnsemble.$(OBJEXT) \
 	tclEnv.$(OBJEXT) \
@@ -261,6 +269,7 @@ GENERIC_OBJS = \
 	tclOOMethod.$(OBJEXT) \
 	tclOOStubInit.$(OBJEXT) \
 	tclObj.$(OBJEXT) \
+	tclOptimize.$(OBJEXT) \
 	tclPanic.$(OBJEXT) \
 	tclParse.$(OBJEXT) \
 	tclPathObj.$(OBJEXT) \
@@ -426,7 +435,7 @@ $(CAT32): cat32.$(OBJEXT)
 
 ${TCL_STUB_LIB_FILE}: ${STUB_OBJS}
 	@$(RM) ${TCL_STUB_LIB_FILE}
-	@MAKE_LIB@ ${STUB_OBJS}
+	@MAKE_STUB_LIB@ ${STUB_OBJS}
 	@POST_MAKE_LIB@
 
 ${TCL_DLL_FILE}: ${TCL_OBJS} tcl.$(RES) @ZLIB_DLL_FILE@
@@ -439,25 +448,19 @@ ${TCL_LIB_FILE}: ${TCL_OBJS} ${DDE_OBJS} ${REG_OBJS}
 	@MAKE_LIB@ ${TCL_OBJS} ${DDE_OBJS} ${REG_OBJS}
 	@POST_MAKE_LIB@
 
-# assume GNU make
-
-# To enable concurrent parallel make of tcl<x>.dll and tcl<x>.lib, the tcl<x>.dll
-# targets have to depend on tcl<x>.lib, this ensures that linking of tcl<x>.dll
-# does not execute concurrently with the renaming and recompiling of tcl<x>.lib
-
-${DDE_DLL_FILE}: ${DDE_OBJS} ${TCL_STUB_LIB_FILE}
+${DDE_DLL_FILE}: ${TCL_STUB_LIB_FILE} ${DDE_OBJS}
 	@MAKE_DLL@ ${DDE_OBJS} $(TCL_STUB_LIB_FILE) $(SHLIB_LD_LIBS)
 
-${REG_DLL_FILE}: ${REG_OBJS} ${TCL_STUB_LIB_FILE}
+${REG_DLL_FILE}: ${TCL_STUB_LIB_FILE} ${REG_OBJS}
 	@MAKE_DLL@ ${REG_OBJS} $(TCL_STUB_LIB_FILE) $(SHLIB_LD_LIBS)
 
-${TEST_DLL_FILE}: ${TCLTEST_OBJS} ${TCL_STUB_LIB_FILE}
+${TEST_DLL_FILE}: ${TCL_STUB_LIB_FILE} ${TCLTEST_OBJS}
 	@$(RM) ${TEST_DLL_FILE} ${TEST_LIB_FILE}
 	@MAKE_DLL@ ${TCLTEST_OBJS} $(TCL_STUB_LIB_FILE) $(SHLIB_LD_LIBS)
 
 # use pre-built zlib1.dll
 ${ZLIB_DLL_FILE}: ${TCL_STUB_LIB_FILE}
-	@if test "@ZLIB_LIBS@set" == "${ZLIB_DIR}/win64/zdll.libset" ; then \
+	@if test "@ZLIB_LIBS@set" != "${ZLIB_DIR}/win32/zdll.libset" ; then \
 		$(COPY) $(ZLIB_DIR)/win64/${ZLIB_DLL_FILE} ${ZLIB_DLL_FILE}; \
 	else \
 		$(COPY) $(ZLIB_DIR)/win32/${ZLIB_DLL_FILE} ${ZLIB_DLL_FILE}; \
@@ -544,9 +547,9 @@ gendate:
 # run (and the results checked) after updating to a new release of libtommath.
 
 gentommath_h:
-	$(TCL_EXE) "$(ROOT_DIR_NATIVE)\tools\fix_tommath_h.tcl" \
-		"$(TOMMATH_DIR_NATIVE)\tommath.h" \
-		> "$(GENERIC_DIR_NATIVE)\tclTomMath.h"
+	$(TCL_EXE) "$(ROOT_DIR_NATIVE)/tools/fix_tommath_h.tcl" \
+		"$(TOMMATH_DIR_NATIVE)/tommath.h" \
+		> "$(GENERIC_DIR_NATIVE)/tclTomMath.h"
 
 install: all install-binaries install-libraries install-doc install-packages
 
@@ -583,23 +586,23 @@ install-binaries: binaries
 	    fi; \
 	    done
 	@if [ -f $(DDE_DLL_FILE) ]; then \
-	    echo installing $(DDE_DLL_FILE); \
+	    echo Installing $(DDE_DLL_FILE); \
 	    $(COPY) $(DDE_DLL_FILE) $(LIB_INSTALL_DIR)/dde${DDEDOTVER}; \
 	    $(COPY) $(ROOT_DIR)/library/dde/pkgIndex.tcl \
 		$(LIB_INSTALL_DIR)/dde${DDEDOTVER}; \
 	    fi
 	@if [ -f $(DDE_LIB_FILE) ]; then \
-	    echo installing $(DDE_LIB_FILE); \
+	    echo Installing $(DDE_LIB_FILE); \
 	    $(COPY) $(DDE_LIB_FILE) $(LIB_INSTALL_DIR)/dde${DDEDOTVER}; \
 	    fi
 	@if [ -f $(REG_DLL_FILE) ]; then \
-	    echo installing $(REG_DLL_FILE); \
+	    echo Installing $(REG_DLL_FILE); \
 	    $(COPY) $(REG_DLL_FILE) $(LIB_INSTALL_DIR)/reg${REGDOTVER}; \
 	    $(COPY) $(ROOT_DIR)/library/reg/pkgIndex.tcl \
 		$(LIB_INSTALL_DIR)/reg${REGDOTVER}; \
 	    fi
 	@if [ -f $(REG_LIB_FILE) ]; then \
-	    echo installing $(REG_LIB_FILE); \
+	    echo Installing $(REG_LIB_FILE); \
 	    $(COPY) $(REG_LIB_FILE) $(LIB_INSTALL_DIR)/reg${REGDOTVER}; \
 	    fi
 
@@ -640,8 +643,8 @@ install-libraries: libraries install-tzdata install-msgs
 	    do \
 	    $(COPY) "$$j" "$(SCRIPT_INSTALL_DIR)/http1.0"; \
 	    done;
-	@echo "Installing package http 2.8.4 as a Tcl Module";
-	@$(COPY) $(ROOT_DIR)/library/http/http.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.6/http-2.8.4.tm;
+	@echo "Installing package http 2.8.9 as a Tcl Module";
+	@$(COPY) $(ROOT_DIR)/library/http/http.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.6/http-2.8.9.tm;
 	@echo "Installing library opt0.4 directory";
 	@for j in $(ROOT_DIR)/library/opt/*.tcl; \
 	    do \
@@ -649,10 +652,10 @@ install-libraries: libraries install-tzdata install-msgs
 	    done;
 	@echo "Installing package msgcat 1.6.0 as a Tcl Module";
 	@$(COPY) $(ROOT_DIR)/library/msgcat/msgcat.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.5/msgcat-1.6.0.tm;
-	@echo "Installing package tcltest 2.3.4 as a Tcl Module";
-	@$(COPY) $(ROOT_DIR)/library/tcltest/tcltest.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.5/tcltest-2.3.4.tm;
-	@echo "Installing package platform 1.0.10 as a Tcl Module";
-	@$(COPY) $(ROOT_DIR)/library/platform/platform.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.4/platform-1.0.10.tm;
+	@echo "Installing package tcltest 2.3.8 as a Tcl Module";
+	@$(COPY) $(ROOT_DIR)/library/tcltest/tcltest.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.5/tcltest-2.3.8.tm;
+	@echo "Installing package platform 1.0.13 as a Tcl Module";
+	@$(COPY) $(ROOT_DIR)/library/platform/platform.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.4/platform-1.0.13.tm;
 	@echo "Installing package platform::shell 1.1.4 as a Tcl Module";
 	@$(COPY) $(ROOT_DIR)/library/platform/shell.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.4/platform/shell-1.1.4.tm;
 	@echo "Installing encodings";
@@ -701,14 +704,14 @@ test-tcl: binaries $(TCLSH) $(CAT32) $(TEST_DLL_FILE)
 	TCL_LIBRARY="$(LIBRARY_DIR)"; export TCL_LIBRARY; \
 	./$(TCLSH) "$(ROOT_DIR_NATIVE)/tests/all.tcl" $(TESTFLAGS) \
 	-load "package ifneeded Tcltest ${VERSION}@TCL_PATCH_LEVEL@ [list load [file normalize ${TEST_DLL_FILE}] Tcltest]; \
-	package ifneeded dde 1.4.0b1 [list load [file normalize ${DDE_DLL_FILE}] dde]; \
+	package ifneeded dde 1.4.0 [list load [file normalize ${DDE_DLL_FILE}] dde]; \
 	package ifneeded registry 1.3.0 [list load [file normalize ${REG_DLL_FILE}] registry]" | ./$(CAT32)
 
 # Useful target to launch a built tclsh with the proper path,...
 runtest: binaries $(TCLSH) $(TEST_DLL_FILE)
 	@TCL_LIBRARY="$(LIBRARY_DIR)"; export TCL_LIBRARY; \
 	./$(TCLSH) $(TESTFLAGS) -load "package ifneeded Tcltest ${VERSION}@TCL_PATCH_LEVEL@ [list load [file normalize ${TEST_DLL_FILE}] Tcltest]; \
-	package ifneeded dde 1.4.0b1 [list load [file normalize ${DDE_DLL_FILE}] dde]; \
+	package ifneeded dde 1.4.0 [list load [file normalize ${DDE_DLL_FILE}] dde]; \
 	package ifneeded registry 1.3.0 [list load [file normalize ${REG_DLL_FILE}] registry]" $(SCRIPT)
 
 # This target can be used to run tclsh from the build directory via
@@ -748,7 +751,7 @@ PKG_CFG_ARGS		= @PKG_CFG_ARGS@
 PKG_DIR			= ./pkgs
 
 packages:
-	@builddir=`pwd`; \
+	@builddir=`pwd -P`; \
 	for i in $(PKGS_DIR)/*; do \
 	  if [ -d $$i ] ; then \
 	    if [ -x $$i/configure ] ; then \
@@ -756,8 +759,8 @@ packages:
 	      mkdir -p $(PKG_DIR)/$$pkg; \
 	      if [ ! -f $(PKG_DIR)/$$pkg/Makefile ]; then \
 	        ( cd $(PKG_DIR)/$$pkg; \
-	          echo "Configuring package '$$i' wd = `pwd`"; \
-	          $$i/configure --with-tcl=$(PWD) --with-tclinclude=$(GENERIC_DIR) $(PKG_CFG_ARGS) --enable-shared --enable-threads; ) \
+	          echo "Configuring package '$$i' wd = `pwd -P`"; \
+	          $$i/configure --with-tcl=$$builddir --with-tclinclude=$(GENERIC_DIR) $(PKG_CFG_ARGS) --enable-shared --enable-threads; ) \
 	      fi ; \
 	      echo "Building package '$$pkg'"; \
 	      ( cd $(PKG_DIR)/$$pkg; $(MAKE); ) \
@@ -767,7 +770,7 @@ packages:
 	cd $$builddir
 
 install-packages: packages
-	@builddir=`pwd`; \
+	@builddir=`pwd -P`; \
 	for i in $(PKGS_DIR)/*; do \
 	  if [ -d $$i ]; then \
 	    pkg=`basename $$i`; \
@@ -780,7 +783,7 @@ install-packages: packages
 	cd $$builddir
 
 test-packages: tcltest packages
-	@builddir=`pwd`; \
+	@builddir=`pwd -P`; \
 	for i in $(PKGS_DIR)/*; do \
 	  if [ -d $$i ]; then \
 	    pkg=`basename $$i`; \
@@ -793,7 +796,7 @@ test-packages: tcltest packages
 	cd $$builddir
 
 clean-packages:
-	@builddir=`pwd`; \
+	@builddir=`pwd -P`; \
 	for i in $(PKGS_DIR)/*; do \
 	  if [ -d $$i ]; then \
 	    pkg=`basename $$i`; \
@@ -805,7 +808,7 @@ clean-packages:
 	cd $$builddir
 
 distclean-packages:
-	@builddir=`pwd`; \
+	@builddir=`pwd -P`; \
 	for i in $(PKGS_DIR)/*; do \
 	  if [ -d $$i ]; then \
 	    pkg=`basename $$i`; \
@@ -849,8 +852,10 @@ TOOL_DIR=$(ROOT_DIR)/tools
 HTML_INSTALL_DIR=$(ROOT_DIR)/html
 html:
 	$(MAKE) shell SCRIPT="$(TOOL_DIR)/tcltk-man2html.tcl --htmldir=$(HTML_INSTALL_DIR) --srcdir=$(ROOT_DIR)/.. $(BUILD_HTML_FLAGS)"
+
 html-tcl: $(TCLSH)
 	$(MAKE) shell SCRIPT="$(TOOL_DIR)/tcltk-man2html.tcl --htmldir=$(HTML_INSTALL_DIR) --srcdir=$(ROOT_DIR)/.. $(BUILD_HTML_FLAGS) --tcl"
+
 html-tk: $(TCLSH)
 	$(MAKE) shell SCRIPT="$(TOOL_DIR)/tcltk-man2html.tcl --htmldir=$(HTML_INSTALL_DIR) --srcdir=$(ROOT_DIR)/.. $(BUILD_HTML_FLAGS) --tk"
 
diff --git a/win/README b/win/README
index 8b257b1..5e060ef 100644
--- a/win/README
+++ b/win/README
@@ -79,7 +79,7 @@ Use the Makefile "install" target to install Tcl.  It will install it
 according to the prefix options you provided in the correct directory
 structure.
 
-Note that in order to run tclsh85.exe, you must ensure that tcl85.dll is
+Note that in order to run tclsh86.exe, you must ensure that tcl86.dll is
 on your path, in the system directory, or in the directory containing
 tclsh86.exe.
 
@@ -91,9 +91,9 @@ Note: Tcl no longer provides support for Win32s.
 This distribution contains an extensive test suite for Tcl.  Some of the
 tests are timing dependent and will fail from time to time.  If a test is
 failing consistently, please send us a bug report with as much detail as
-you can manage.  Please use the online database at
+you can manage to our tracker:
 
-	http://tcl.sourceforge.net/
+	http://core.tcl.tk/tcl/reportlist
 
 In order to run the test suite, you build the "test" target using the
 appropriate makefile for your compiler.
diff --git a/win/configure b/win/configure
index 521fc51..2401002 100755
--- a/win/configure
+++ b/win/configure
@@ -309,7 +309,7 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP EGREP AR ac_ct_AR RANLIB ac_ct_RANLIB RC ac_ct_RC SET_MAKE TCL_THREADS CYGPATH CELIB_DIR DL_LIBS CFLAGS_DEBUG CFLAGS_OPTIMIZE CFLAGS_WARNING ZLIB_DLL_FILE ZLIB_LIBS ZLIB_OBJS CFLAGS_DEFAULT LDFLAGS_DEFAULT VC_MANIFEST_EMBED_DLL VC_MANIFEST_EMBED_EXE TCL_VERSION TCL_MAJOR_VERSION TCL_MINOR_VERSION TCL_PATCH_LEVEL PKG_CFG_ARGS TCL_EXE TCL_LIB_FILE TCL_LIB_FLAG TCL_STATIC_LIB_FILE TCL_STATIC_LIB_FLAG TCL_IMPORT_LIB_FILE TCL_IMPORT_LIB_FLAG TCL_LIB_SPEC TCL_STUB_LIB_FILE TCL_STUB_LIB_FLAG TCL_STUB_LIB_SPEC TCL_STUB_LIB_PATH TCL_INCLUDE_SPEC TCL_BUILD_STUB_LIB_SPEC TCL_BUILD_STUB_LIB_PATH TCL_DLL_FILE TCL_SRC_DIR TCL_BIN_DIR TCL_DBGX CFG_TCL_SHARED_LIB_SUFFIX CFG_TCL_UNSHARED_LIB_SUFFIX CFG_TCL_EXPORT_FILE_SUFFIX EXTRA_CFLAGS DEPARG CC_OBJNAME CC_EXENAME LDFLAGS_DEBUG LDFLAGS_OPTIMIZE LDFLAGS_CONSOLE LDFLAGS_WINDOW STLIB_LD SHLIB_LD SHLIB_LD_LIBS SHLIB_CFLAGS SHLIB_SUFFIX TCL_SHARED_BUILD LIBS_GUI DLLSUFFIX LIBPREFIX LIBSUFFIX EXESUFFIX LIBRARIES MAKE_LIB POST_MAKE_LIB MAKE_DLL MAKE_EXE TCL_BUILD_LIB_SPEC TCL_LD_SEARCH_FLAGS TCL_NEEDS_EXP_FILE TCL_BUILD_EXP_FILE TCL_EXP_FILE TCL_LIB_VERSIONS_OK TCL_PACKAGE_PATH TCL_DDE_VERSION TCL_DDE_MAJOR_VERSION TCL_DDE_MINOR_VERSION TCL_REG_VERSION TCL_REG_MAJOR_VERSION TCL_REG_MINOR_VERSION RC_OUT RC_TYPE RC_INCLUDE RC_DEFINE RC_DEFINES RES LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP EGREP AR ac_ct_AR RANLIB ac_ct_RANLIB RC ac_ct_RC SET_MAKE TCL_THREADS CYGPATH CELIB_DIR DL_LIBS CFLAGS_DEBUG CFLAGS_OPTIMIZE CFLAGS_WARNING ZLIB_DLL_FILE ZLIB_LIBS ZLIB_OBJS CFLAGS_DEFAULT LDFLAGS_DEFAULT VC_MANIFEST_EMBED_DLL VC_MANIFEST_EMBED_EXE TCL_WIN_VERSION MACHINE TCL_VERSION TCL_MAJOR_VERSION TCL_MINOR_VERSION TCL_PATCH_LEVEL PKG_CFG_ARGS TCL_EXE TCL_LIB_FILE TCL_LIB_FLAG TCL_STATIC_LIB_FILE TCL_STATIC_LIB_FLAG TCL_IMPORT_LIB_FILE TCL_IMPORT_LIB_FLAG TCL_LIB_SPEC TCL_STUB_LIB_FILE TCL_STUB_LIB_FLAG TCL_STUB_LIB_SPEC TCL_STUB_LIB_PATH TCL_INCLUDE_SPEC TCL_BUILD_STUB_LIB_SPEC TCL_BUILD_STUB_LIB_PATH TCL_DLL_FILE TCL_SRC_DIR TCL_BIN_DIR TCL_DBGX CFG_TCL_SHARED_LIB_SUFFIX CFG_TCL_UNSHARED_LIB_SUFFIX CFG_TCL_EXPORT_FILE_SUFFIX EXTRA_CFLAGS DEPARG CC_OBJNAME CC_EXENAME LDFLAGS_DEBUG LDFLAGS_OPTIMIZE LDFLAGS_CONSOLE LDFLAGS_WINDOW STLIB_LD SHLIB_LD SHLIB_LD_LIBS SHLIB_CFLAGS SHLIB_SUFFIX TCL_SHARED_BUILD LIBS_GUI DLLSUFFIX LIBPREFIX LIBSUFFIX EXESUFFIX LIBRARIES MAKE_LIB MAKE_STUB_LIB POST_MAKE_LIB MAKE_DLL MAKE_EXE TCL_BUILD_LIB_SPEC TCL_LD_SEARCH_FLAGS TCL_NEEDS_EXP_FILE TCL_BUILD_EXP_FILE TCL_EXP_FILE TCL_LIB_VERSIONS_OK TCL_PACKAGE_PATH TCL_DDE_VERSION TCL_DDE_MAJOR_VERSION TCL_DDE_MINOR_VERSION TCL_REG_VERSION TCL_REG_MAJOR_VERSION TCL_REG_MINOR_VERSION RC_OUT RC_TYPE RC_INCLUDE RC_DEFINE RC_DEFINES RES LIBOBJS LTLIBOBJS'
 ac_subst_files=''
 
 # Initialize some variables set by options.
@@ -1311,7 +1311,7 @@ SHELL=/bin/sh
 TCL_VERSION=8.6
 TCL_MAJOR_VERSION=8
 TCL_MINOR_VERSION=6
-TCL_PATCH_LEVEL="b3"
+TCL_PATCH_LEVEL=".4"
 VER=$TCL_MAJOR_VERSION$TCL_MINOR_VERSION
 
 TCL_DDE_VERSION=1.4
@@ -3146,7 +3146,8 @@ echo "${ECHO_T}shared" >&6
 	echo "$as_me:$LINENO: result: static" >&5
 echo "${ECHO_T}static" >&6
 	SHARED_BUILD=0
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define STATIC_BUILD 1
 _ACEOF
 
@@ -3339,7 +3340,7 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 
-	    #ifndef __WIN32__
+	    #ifndef _WIN32
 		#error cross-compiler
 	    #endif
 
@@ -3448,6 +3449,8 @@ echo "${ECHO_T}yes" >&6
     # set various compiler flags depending on whether we are using gcc or cl
 
     if test "${GCC}" = "yes" ; then
+	extra_cflags="-pipe"
+	extra_ldflags="-pipe -static-libgcc"
 	echo "$as_me:$LINENO: checking for mingw32 version of gcc" >&5
 echo $ECHO_N "checking for mingw32 version of gcc... $ECHO_C" >&6
 if test "${ac_cv_win32+set}" = set; then
@@ -3460,7 +3463,7 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 
-		#ifdef __WIN32__
+		#ifdef _WIN32
 		    #error win32
 		#endif
 
@@ -3594,13 +3597,11 @@ echo $ECHO_N "checking compiler flags... $ECHO_C" >&6
 	RC_DEFINE=--define
 	RES=res.o
 	MAKE_LIB="\${STLIB_LD} \$@"
+	MAKE_STUB_LIB="\${STLIB_LD} \$@"
 	POST_MAKE_LIB="\${RANLIB} \$@"
 	MAKE_EXE="\${CC} -o \$@"
 	LIBPREFIX="lib"
 
-	extra_cflags="$extra_cflags -pipe"
-	extra_ldflags="$extra_ldflags -pipe"
-
 	if test "${SHARED_BUILD}" = "0" ; then
 	    # static
             echo "$as_me:$LINENO: result: using static flags" >&5
@@ -3629,9 +3630,8 @@ echo "$as_me: error: ${CC} does not support the -shared option.
 	    LIBRARIES="\${SHARED_LIBRARIES}"
 	fi
 	# Link with gcc since ld does not link to default libs like
-	# -luser32 and -lmsvcrt by default. Make sure CFLAGS is
-	# included so -mno-cygwin passed the correct libs to the linker.
-	SHLIB_LD='${CC} -shared ${CFLAGS}'
+	# -luser32 and -lmsvcrt by default.
+	SHLIB_LD='${CC} -shared'
 	SHLIB_LD_LIBS='${LIBS}'
 	MAKE_DLL="\${SHLIB_LD} \$(LDFLAGS) -o \$@ ${extra_ldflags} \
 	    -Wl,--out-implib,\$(patsubst %.dll,lib%.a,\$@)"
@@ -4003,6 +4003,7 @@ _ACEOF
 	RC_DEFINE=-d
 	RES=res
 	MAKE_LIB="\${STLIB_LD} -out:\$@"
+	MAKE_STUB_LIB="\${STLIB_LD} -nodefaultlib -out:\$@"
 	POST_MAKE_LIB=
 	MAKE_EXE="\${CC} -Fe\$@"
 	LIBPREFIX=""
@@ -4344,12 +4345,6 @@ esac
 #	as we just assume that the platform hasn't got a usable z.lib
 #------------------------------------------------------------------------
 
-if test "$do64bit" = "yes" && test "$GCC" != "yes"; then
-
-  tcl_ok=no
-
-else
-
 if test "${enable_shared+set}" = "set"; then
 
   enableval="$enable_shared"
@@ -4361,21 +4356,20 @@ else
 
 fi
 
-
-fi
-
 if test "$tcl_ok" = "yes"; then
 
   ZLIB_DLL_FILE=\${ZLIB_DLL_FILE}
 
   if test "$do64bit" = "yes"; then
 
-    ZLIB_LIBS=\${ZLIB_DIR}/win64/zdll.lib
+    if test "$GCC" == "yes"; then
+
+      ZLIB_LIBS=\${ZLIB_DIR_NATIVE}/win64/libz.dll.a
 
 
 else
 
-    ZLIB_LIBS=\${ZLIB_DIR}/win32/zdll.lib
+      ZLIB_LIBS=\${ZLIB_DIR_NATIVE}/win64/zdll.lib
 
 
 fi
@@ -4383,11 +4377,15 @@ fi
 
 else
 
-  ZLIB_OBJS=\${ZLIB_OBJS}
+    ZLIB_LIBS=\${ZLIB_DIR_NATIVE}/win32/zdll.lib
 
-  cat >>confdefs.h <<_ACEOF
-#define NO_VIZ 1
-_ACEOF
+
+fi
+
+
+else
+
+  ZLIB_OBJS=\${ZLIB_OBJS}
 
 
 fi
@@ -5170,6 +5168,19 @@ else
     TCL_PACKAGE_PATH="${prefix}/lib"
 fi
 
+# The tclsh.exe.manifest requires these
+# TCL_WIN_VERSION is the 4 dotted pair Windows version format which needs
+# the release level, and must account for interim release versioning
+case "$TCL_PATCH_LEVEL" in
+     *a*) TCL_RELEASE_LEVEL=0 ;;
+     *b*) TCL_RELEASE_LEVEL=1 ;;
+     *)   TCL_RELEASE_LEVEL=2 ;;
+esac
+TCL_WIN_VERSION="$TCL_VERSION.$TCL_RELEASE_LEVEL.`echo $TCL_PATCH_LEVEL | tr -d ab.`"
+
+# X86|AMD64|IA64 for manifest
+
+
 
 
 
@@ -5237,6 +5248,7 @@ fi
 
 
 
+
 # empty on win, but needs sub'ing
 
 
@@ -5263,7 +5275,7 @@ fi
 
 
 
-                              ac_config_files="$ac_config_files Makefile tclConfig.sh tcl.hpj"
+                                        ac_config_files="$ac_config_files Makefile tclConfig.sh tcl.hpj tclsh.exe.manifest"
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
 # tests run on this system so they can be shared between configure
@@ -5817,6 +5829,7 @@ do
   "Makefile" ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
   "tclConfig.sh" ) CONFIG_FILES="$CONFIG_FILES tclConfig.sh" ;;
   "tcl.hpj" ) CONFIG_FILES="$CONFIG_FILES tcl.hpj" ;;
+  "tclsh.exe.manifest" ) CONFIG_FILES="$CONFIG_FILES tclsh.exe.manifest" ;;
   *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
 echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
    { (exit 1); exit 1; }; };;
@@ -5930,6 +5943,8 @@ s,@CFLAGS_DEFAULT@,$CFLAGS_DEFAULT,;t t
 s,@LDFLAGS_DEFAULT@,$LDFLAGS_DEFAULT,;t t
 s,@VC_MANIFEST_EMBED_DLL@,$VC_MANIFEST_EMBED_DLL,;t t
 s,@VC_MANIFEST_EMBED_EXE@,$VC_MANIFEST_EMBED_EXE,;t t
+s,@TCL_WIN_VERSION@,$TCL_WIN_VERSION,;t t
+s,@MACHINE@,$MACHINE,;t t
 s,@TCL_VERSION@,$TCL_VERSION,;t t
 s,@TCL_MAJOR_VERSION@,$TCL_MAJOR_VERSION,;t t
 s,@TCL_MINOR_VERSION@,$TCL_MINOR_VERSION,;t t
@@ -5978,6 +5993,7 @@ s,@LIBSUFFIX@,$LIBSUFFIX,;t t
 s,@EXESUFFIX@,$EXESUFFIX,;t t
 s,@LIBRARIES@,$LIBRARIES,;t t
 s,@MAKE_LIB@,$MAKE_LIB,;t t
+s,@MAKE_STUB_LIB@,$MAKE_STUB_LIB,;t t
 s,@POST_MAKE_LIB@,$POST_MAKE_LIB,;t t
 s,@MAKE_DLL@,$MAKE_DLL,;t t
 s,@MAKE_EXE@,$MAKE_EXE,;t t
diff --git a/win/configure.in b/win/configure.in
index 9145ff3..fc487d0 100644
--- a/win/configure.in
+++ b/win/configure.in
@@ -14,7 +14,7 @@ SHELL=/bin/sh
 TCL_VERSION=8.6
 TCL_MAJOR_VERSION=8
 TCL_MINOR_VERSION=6
-TCL_PATCH_LEVEL="b3"
+TCL_PATCH_LEVEL=".4"
 VER=$TCL_MAJOR_VERSION$TCL_MINOR_VERSION
 
 TCL_DDE_VERSION=1.4
@@ -120,26 +120,25 @@ esac
 #	as we just assume that the platform hasn't got a usable z.lib
 #------------------------------------------------------------------------
 
-AS_IF([test "$do64bit" = "yes" && test "$GCC" != "yes"], [
-  tcl_ok=no
-], [
 AS_IF([test "${enable_shared+set}" = "set"], [
   enableval="$enable_shared"
   tcl_ok=$enableval
 ], [
   tcl_ok=yes
 ])
-])
 AS_IF([test "$tcl_ok" = "yes"], [
   AC_SUBST(ZLIB_DLL_FILE,[\${ZLIB_DLL_FILE}])
   AS_IF([test "$do64bit" = "yes"], [
-    AC_SUBST(ZLIB_LIBS,[\${ZLIB_DIR}/win64/zdll.lib])
+    AS_IF([test "$GCC" == "yes"],[
+      AC_SUBST(ZLIB_LIBS,[\${ZLIB_DIR_NATIVE}/win64/libz.dll.a])
+    ], [
+      AC_SUBST(ZLIB_LIBS,[\${ZLIB_DIR_NATIVE}/win64/zdll.lib])
+    ])
   ], [
-    AC_SUBST(ZLIB_LIBS,[\${ZLIB_DIR}/win32/zdll.lib])
+    AC_SUBST(ZLIB_LIBS,[\${ZLIB_DIR_NATIVE}/win32/zdll.lib])
   ])
 ], [
   AC_SUBST(ZLIB_OBJS,[\${ZLIB_OBJS}])
-  AC_DEFINE_UNQUOTED(NO_VIZ, 1)
 ])
 AC_DEFINE(HAVE_ZLIB, 1, [Is there an installed zlib?])
 
@@ -351,6 +350,19 @@ else
     TCL_PACKAGE_PATH="${prefix}/lib"
 fi
 
+# The tclsh.exe.manifest requires these
+# TCL_WIN_VERSION is the 4 dotted pair Windows version format which needs
+# the release level, and must account for interim release versioning
+case "$TCL_PATCH_LEVEL" in
+     *a*) TCL_RELEASE_LEVEL=0 ;;
+     *b*) TCL_RELEASE_LEVEL=1 ;;
+     *)   TCL_RELEASE_LEVEL=2 ;;
+esac
+TCL_WIN_VERSION="$TCL_VERSION.$TCL_RELEASE_LEVEL.`echo $TCL_PATCH_LEVEL | tr -d ab.`"
+AC_SUBST(TCL_WIN_VERSION)
+# X86|AMD64|IA64 for manifest
+AC_SUBST(MACHINE)
+
 AC_SUBST(TCL_VERSION)
 AC_SUBST(TCL_MAJOR_VERSION)
 AC_SUBST(TCL_MINOR_VERSION)
@@ -414,6 +426,7 @@ AC_SUBST(LIBSUFFIX)
 AC_SUBST(EXESUFFIX)
 AC_SUBST(LIBRARIES)
 AC_SUBST(MAKE_LIB)
+AC_SUBST(MAKE_STUB_LIB)
 AC_SUBST(POST_MAKE_LIB)
 AC_SUBST(MAKE_DLL)
 AC_SUBST(MAKE_EXE)
@@ -444,7 +457,7 @@ AC_SUBST(RC_DEFINE)
 AC_SUBST(RC_DEFINES)
 AC_SUBST(RES)
 
-AC_OUTPUT(Makefile tclConfig.sh tcl.hpj)
+AC_OUTPUT(Makefile tclConfig.sh tcl.hpj tclsh.exe.manifest)
 
 dnl Local Variables:
 dnl mode: autoconf;
diff --git a/win/makefile.bc b/win/makefile.bc
index d17c624..f5196b6 100644
--- a/win/makefile.bc
+++ b/win/makefile.bc
@@ -200,12 +200,14 @@ TCLOBJS	= \
 	$(TMPDIR)\tclCmdIL.obj \
 	$(TMPDIR)\tclCmdMZ.obj \
 	$(TMPDIR)\tclCompCmds.obj \
+	$(TMPDIR)\tclCompCmdsGR.obj \
 	$(TMPDIR)\tclCompCmdsSZ.obj \
 	$(TMPDIR)\tclCompExpr.obj \
 	$(TMPDIR)\tclCompile.obj \
 	$(TMPDIR)\tclConfig.obj \
 	$(TMPDIR)\tclDate.obj \
 	$(TMPDIR)\tclDictObj.obj \
+	$(TMPDIR)\tclDisassemble.obj \
 	$(TMPDIR)\tclEncoding.obj \
 	$(TMPDIR)\tclEnsemble.obj \
 	$(TMPDIR)\tclEnv.obj \
@@ -238,6 +240,7 @@ TCLOBJS	= \
 	$(TMPDIR)\tclOOMethod.obj \
 	$(TMPDIR)\tclOOStubInit.obj \
 	$(TMPDIR)\tclObj.obj \
+	$(TMPDIR)\tclOptimize.obj \
 	$(TMPDIR)\tclPanic.obj \
 	$(TMPDIR)\tclParse.obj \
 	$(TMPDIR)\tclPipe.obj \
@@ -407,57 +410,57 @@ $(CAT32): $(WINDIR)\cat.c
 install-binaries: $(TCLSH)
 	$(MKDIR) "$(BIN_INSTALL_DIR)"
 	$(MKDIR) "$(LIB_INSTALL_DIR)"
-	@echo installing $(TCLDLLNAME)
+	@echo Installing $(TCLDLLNAME)
 	@copy "$(TCLDLL)" "$(BIN_INSTALL_DIR)"
 	@copy "$(TCLLIB)" "$(LIB_INSTALL_DIR)"
-	@echo installing "$(TCLSH)"
+	@echo Installing "$(TCLSH)"
 	@copy "$(TCLSH)" "$(BIN_INSTALL_DIR)"
-	@echo installing $(TCLSTUBLIBNAME)
+	@echo Installing $(TCLSTUBLIBNAME)
 	@copy "$(TCLSTUBLIB)" "$(LIB_INSTALL_DIR)"
-	@echo installing $(WINDIR)\tclooConfig.sh
+	@echo Installing $(WINDIR)\tclooConfig.sh
 	@copy "$(WINDIR)\tclooConfig.sh" "$(LIB_INSTALL_DIR)"
 
 install-libraries:
 	-@$(MKDIR) "$(LIB_INSTALL_DIR)"
 	-@$(MKDIR) "$(INCLUDE_INSTALL_DIR)"
 	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)"
-	@echo installing http1.0
+	@echo Installing http1.0
 	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\http1.0"
 	-@copy "$(ROOT)\library\http1.0\http.tcl"     "$(SCRIPT_INSTALL_DIR)\http1.0"
 	-@copy "$(ROOT)\library\http1.0\pkgIndex.tcl" "$(SCRIPT_INSTALL_DIR)\http1.0"
-	@echo installing http2.8
+	@echo Installing http2.8
 	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\http2.8"
 	-@copy "$(ROOT)\library\http\http.tcl"     "$(SCRIPT_INSTALL_DIR)\http2.8"
 	-@copy "$(ROOT)\library\http\pkgIndex.tcl" "$(SCRIPT_INSTALL_DIR)\http2.8"
-	@echo installing opt0.4
+	@echo Installing opt0.4
 	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\opt0.4"
 	-@copy "$(ROOT)\library\opt\optparse.tcl" "$(SCRIPT_INSTALL_DIR)\opt0.4"
 	-@copy "$(ROOT)\library\opt\pkgIndex.tcl" "$(SCRIPT_INSTALL_DIR)\opt0.4"
-	@echo installing msgcat1.4
-	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\msgcat1.4"
-	-@copy "$(ROOT)\library\msgcat\msgcat.tcl"   "$(SCRIPT_INSTALL_DIR)\msgcat1.4"
-	-@copy "$(ROOT)\library\msgcat\pkgIndex.tcl" "$(SCRIPT_INSTALL_DIR)\msgcat1.4"
-	@echo installing tcltest2.3
+	@echo Installing msgcat1.5
+	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\msgcat1.5"
+	-@copy "$(ROOT)\library\msgcat\msgcat.tcl"   "$(SCRIPT_INSTALL_DIR)\msgcat1.5"
+	-@copy "$(ROOT)\library\msgcat\pkgIndex.tcl" "$(SCRIPT_INSTALL_DIR)\msgcat1.5"
+	@echo Installing tcltest2.3
 	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\tcltest2.3"
 	-@copy "$(ROOT)\library\tcltest\tcltest.tcl"   "$(SCRIPT_INSTALL_DIR)\tcltest2.3"
 	-@copy "$(ROOT)\library\tcltest\pkgIndex.tcl" "$(SCRIPT_INSTALL_DIR)\tcltest2.3"
-	@echo installing platform1.0
+	@echo Installing platform1.0
 	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\platform1.0"
 	-@copy "$(ROOT)\library\platform\platform.tcl" "$(SCRIPT_INSTALL_DIR)\platform1.0"
 	-@copy "$(ROOT)\library\platform\shell.tcl"    "$(SCRIPT_INSTALL_DIR)\platform1.0"
 	-@copy "$(ROOT)\library\platform\pkgIndex.tcl" "$(SCRIPT_INSTALL_DIR)\platform1.0"
-	@echo installing $(TCLDDEDLLNAME)
+	@echo Installing $(TCLDDEDLLNAME)
 	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\dde1.3"
 	-@copy "$(TCLDDEDLL)" "$(SCRIPT_INSTALL_DIR)\dde1.3"
 	-@copy "$(ROOT)\library\dde\pkgIndex.tcl" "$(SCRIPT_INSTALL_DIR)\dde1.3"
-	@echo installing $(TCLREGDLLNAME)
+	@echo Installing $(TCLREGDLLNAME)
 	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\reg1.2"
 	-@copy "$(TCLREGDLL)" "$(SCRIPT_INSTALL_DIR)\reg1.3"
 	-@copy "$(ROOT)\library\reg\pkgIndex.tcl" "$(SCRIPT_INSTALL_DIR)\reg1.2"
-	@echo installing encoding files
+	@echo Installing encoding files
 	-@$(MKDIR) "$(SCRIPT_INSTALL_DIR)\encoding"
 	-@copy "$(ROOT)\library\encoding\*.enc" "$(SCRIPT_INSTALL_DIR)\encoding"
-	@echo installing library files
+	@echo Installing library files
 	-@copy "$(GENERICDIR)\tcl.h"         "$(INCLUDE_INSTALL_DIR)"
 	-@copy "$(GENERICDIR)\tclDecls.h"    "$(INCLUDE_INSTALL_DIR)"
 	-@copy "$(GENERICDIR)\tclOO.h"       "$(INCLUDE_INSTALL_DIR)"
@@ -585,3 +588,7 @@ clean:
 	-@$(RM) $(TMPDIR)\*.exe
 	-@$(RMDIR) $(OUTDIR)
 	-@$(RMDIR) $(TMPDIR)
+
+# Local Variables:
+# mode: makefile
+# End:
diff --git a/win/makefile.vc b/win/makefile.vc
index ba5b710..8c65bd0 100644
--- a/win/makefile.vc
+++ b/win/makefile.vc
@@ -1,4 +1,4 @@
-#------------------------------------------------------------- -*- makefile -*-
+#-------------------------------------------------------------
 # makefile.vc --
 #
 #	Microsoft Visual C++ makefile for use with nmake.exe v1.62+ (VC++ 5.0+)
@@ -274,12 +274,14 @@ COREOBJS = \
 	$(TMP_DIR)\tclCmdIL.obj \
 	$(TMP_DIR)\tclCmdMZ.obj \
 	$(TMP_DIR)\tclCompCmds.obj \
+	$(TMP_DIR)\tclCompCmdsGR.obj \
 	$(TMP_DIR)\tclCompCmdsSZ.obj \
 	$(TMP_DIR)\tclCompExpr.obj \
 	$(TMP_DIR)\tclCompile.obj \
 	$(TMP_DIR)\tclConfig.obj \
 	$(TMP_DIR)\tclDate.obj \
 	$(TMP_DIR)\tclDictObj.obj \
+	$(TMP_DIR)\tclDisassemble.obj \
 	$(TMP_DIR)\tclEncoding.obj \
 	$(TMP_DIR)\tclEnsemble.obj \
 	$(TMP_DIR)\tclEnv.obj \
@@ -315,6 +317,7 @@ COREOBJS = \
 	$(TMP_DIR)\tclOOMethod.obj \
 	$(TMP_DIR)\tclOOStubInit.obj \
 	$(TMP_DIR)\tclObj.obj \
+	$(TMP_DIR)\tclOptimize.obj \
 	$(TMP_DIR)\tclPanic.obj \
 	$(TMP_DIR)\tclParse.obj \
 	$(TMP_DIR)\tclPathObj.obj \
@@ -578,13 +581,13 @@ test-core: setup $(TCLTEST) dlls $(CAT32)
 	set TCL_LIBRARY=$(ROOT:\=/)/library
 !if "$(OS)" == "Windows_NT"  || "$(MSVCDIR)" == "IDE"
 	$(DEBUGGER) $(TCLTEST) "$(ROOT:\=/)/tests/all.tcl" $(TESTFLAGS) -loadfile <<
-		package ifneeded dde 1.4.0b1 [list load "$(TCLDDELIB:\=/)" dde]
+		package ifneeded dde 1.4.0 [list load "$(TCLDDELIB:\=/)" dde]
 		package ifneeded registry 1.3.0 [list load "$(TCLREGLIB:\=/)" registry]
 <<
 !else
 	@echo Please wait while the tests are collected...
 	$(TCLTEST) "$(ROOT:\=/)/tests/all.tcl" $(TESTFLAGS) -loadfile << > tests.log
-		package ifneeded dde 1.4.0b1 "$(TCLDDELIB:\=/)" dde]
+		package ifneeded dde 1.4.0 "$(TCLDDELIB:\=/)" dde]
 		package ifneeded registry 1.3.0 "$(TCLREGLIB:\=/)" registry]
 <<
 	type tests.log | more
@@ -620,7 +623,7 @@ $**
 !endif
 
 $(TCLSTUBLIB): $(TCLSTUBOBJS)
-	$(lib32) -nologo $(LINKERFLAGS) -out:$@ $(TCLSTUBOBJS)
+	$(lib32) -nologo $(LINKERFLAGS) -nodefaultlib -out:$@ $(TCLSTUBOBJS)
 
 $(TCLSH): $(TCLSHOBJS) $(TCLSTUBLIB) $(TCLIMPLIB)
 	$(link32) $(conlflags) -stack:2300000 -out:$@ $(baselibs) $**
@@ -983,6 +986,12 @@ $(TMP_DIR)\tclTomMathStubLib.obj: $(GENERICDIR)\tclTomMathStubLib.c
 $(TMP_DIR)\tclOOStubLib.obj: $(GENERICDIR)\tclOOStubLib.c
 	$(cc32) $(STUB_CFLAGS) -Zl -DSTATIC_BUILD $(TCL_INCLUDES) -Fo$@ $?
 
+$(TMP_DIR)\tclsh.exe.manifest: $(WINDIR)\tclsh.exe.manifest.in
+	@nmakehlp -s << $** >$@
+@MACHINE@	  $(MACHINE:IX86=X86)
+@TCL_WIN_VERSION@  $(DOTVERSION).0.0
+<<
+
 #---------------------------------------------------------------------
 # Generate the source dependencies.  Having dependency rules will
 # improve incremental build accuracy without having to resort to a
@@ -1049,12 +1058,14 @@ $<
 <<
 
 {$(WINDIR)}.rc{$(TMP_DIR)}.res:
-	$(rc32) -fo $@ -r -i "$(GENERICDIR)" \
+	$(rc32) -fo $@ -r -i "$(GENERICDIR)" -i "$(TMP_DIR)" \
 	    -d DEBUG=$(DEBUG) -d UNCHECKED=$(UNCHECKED) \
 	    -d TCL_THREADS=$(TCL_THREADS) \
 	    -d STATIC_BUILD=$(STATIC_BUILD) \
 	    $<
 
+$(TMP_DIR)\tclsh.res: $(TMP_DIR)\tclsh.exe.manifest
+
 .SUFFIXES:
 .SUFFIXES:.c .rc
 
@@ -1219,3 +1230,7 @@ realclean: hose
 hose:
 	@echo Hosing $(OUT_DIR)\* ...
 	@if exist $(OUT_DIR)\nul $(RMDIR) $(OUT_DIR)
+
+# Local Variables:
+# mode: makefile
+# End:
diff --git a/win/tcl.m4 b/win/tcl.m4
index 5e8e135..d12ae10 100644
--- a/win/tcl.m4
+++ b/win/tcl.m4
@@ -3,50 +3,124 @@
 #
 #	Locate the tclConfig.sh file and perform a sanity check on
 #	the Tcl compile flags
-#	Currently a no-op for Windows
 #
 # Arguments:
-#	PATCH_LEVEL	The patch level for Tcl if any.
+#	none
 #
 # Results:
 #
 #	Adds the following arguments to configure:
 #		--with-tcl=...
 #
-#	Sets the following vars:
-#		TCL_BIN_DIR	Full path to the tclConfig.sh file
+#	Defines the following vars:
+#		TCL_BIN_DIR	Full path to the directory containing
+#				the tclConfig.sh file
 #------------------------------------------------------------------------
 
 AC_DEFUN([SC_PATH_TCLCONFIG], [
-    AC_MSG_CHECKING([the location of tclConfig.sh])
+    #
+    # Ok, lets find the tcl configuration
+    # First, look for one uninstalled.
+    # the alternative search directory is invoked by --with-tcl
+    #
 
-    if test -d ../../tcl8.6$1/win;  then
-	TCL_BIN_DIR_DEFAULT=../../tcl8.6$1/win
-    elif test -d ../../tcl8.6/win;  then
-	TCL_BIN_DIR_DEFAULT=../../tcl8.6/win
-    else
-	TCL_BIN_DIR_DEFAULT=../../tcl/win
-    fi
+    if test x"${no_tcl}" = x ; then
+	# we reset no_tcl in case something fails here
+	no_tcl=true
+	AC_ARG_WITH(tcl,
+	    AC_HELP_STRING([--with-tcl],
+		[directory containing tcl configuration (tclConfig.sh)]),
+	    with_tclconfig="${withval}")
+	AC_MSG_CHECKING([for Tcl configuration])
+	AC_CACHE_VAL(ac_cv_c_tclconfig,[
+
+	    # First check to see if --with-tcl was specified.
+	    if test x"${with_tclconfig}" != x ; then
+		case "${with_tclconfig}" in
+		    */tclConfig.sh )
+			if test -f "${with_tclconfig}"; then
+			    AC_MSG_WARN([--with-tcl argument should refer to directory containing tclConfig.sh, not to tclConfig.sh itself])
+			    with_tclconfig="`echo "${with_tclconfig}" | sed 's!/tclConfig\.sh$!!'`"
+			fi ;;
+		esac
+		if test -f "${with_tclconfig}/tclConfig.sh" ; then
+		    ac_cv_c_tclconfig="`(cd "${with_tclconfig}"; pwd)`"
+		else
+		    AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
+		fi
+	    fi
 
-    AC_ARG_WITH(tcl, [  --with-tcl=DIR          use Tcl 8.6 binaries from DIR],
-	    TCL_BIN_DIR=$withval, TCL_BIN_DIR=`cd $TCL_BIN_DIR_DEFAULT; pwd`)
-    if test ! -d $TCL_BIN_DIR; then
-	AC_MSG_ERROR(Tcl directory $TCL_BIN_DIR does not exist)
-    fi
-    if test ! -f $TCL_BIN_DIR/tclConfig.sh; then
-	if test ! -f $TCL_BIN_DIR/../unix/tclConfig.sh; then
-	    AC_MSG_ERROR(There is no tclConfig.sh in $TCL_BIN_DIR:  perhaps you did not specify the Tcl *build* directory (not the toplevel Tcl directory) or you forgot to configure Tcl?)
+	    # then check for a private Tcl installation
+	    if test x"${ac_cv_c_tclconfig}" = x ; then
+		for i in \
+			../tcl \
+			`ls -dr ../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			../../tcl \
+			`ls -dr ../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			../../../tcl \
+			`ls -dr ../../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
+		    if test -f "$i/win/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i/win; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # check in a few common install locations
+	    if test x"${ac_cv_c_tclconfig}" = x ; then
+		for i in `ls -d ${libdir} 2>/dev/null` \
+			`ls -d ${exec_prefix}/lib 2>/dev/null` \
+			`ls -d ${prefix}/lib 2>/dev/null` \
+			`ls -d /cygdrive/c/Tcl/lib 2>/dev/null` \
+			`ls -d /cygdrive/c/Progra~1/Tcl/lib 2>/dev/null` \
+			`ls -d /c/Tcl/lib 2>/dev/null` \
+			`ls -d /c/Progra~1/Tcl/lib 2>/dev/null` \
+			`ls -d C:/Tcl/lib 2>/dev/null` \
+			`ls -d C:/Progra~1/Tcl/lib 2>/dev/null` \
+			; do
+		    if test -f "$i/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # check in a few other private locations
+	    if test x"${ac_cv_c_tclconfig}" = x ; then
+		for i in \
+			${srcdir}/../tcl \
+			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
+		    if test -f "$i/win/tclConfig.sh" ; then
+		    ac_cv_c_tclconfig="`(cd $i/win; pwd)`"
+		    break
+		fi
+		done
+	    fi
+	])
+
+	if test x"${ac_cv_c_tclconfig}" = x ; then
+	    TCL_BIN_DIR="# no Tcl configs found"
+	    AC_MSG_ERROR([Can't find Tcl configuration definitions. Use --with-tcl to specify a directory containing tclConfig.sh])
+	else
+	    no_tcl=
+	    TCL_BIN_DIR="${ac_cv_c_tclconfig}"
+	    AC_MSG_RESULT([found ${TCL_BIN_DIR}/tclConfig.sh])
 	fi
-	TCL_BIN_DIR=`cd ${TCL_BIN_DIR}/../unix; pwd`
     fi
-    AC_MSG_RESULT($TCL_BIN_DIR/tclConfig.sh)
 ])
 
 #------------------------------------------------------------------------
 # SC_PATH_TKCONFIG --
 #
 #	Locate the tkConfig.sh file
-#	Currently a no-op for Windows
 #
 # Arguments:
 #	none
@@ -56,31 +130,109 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
 #	Adds the following arguments to configure:
 #		--with-tk=...
 #
-#	Sets the following vars:
-#		TK_BIN_DIR	Full path to the tkConfig.sh file
+#	Defines the following vars:
+#		TK_BIN_DIR	Full path to the directory containing
+#				the tkConfig.sh file
 #------------------------------------------------------------------------
 
 AC_DEFUN([SC_PATH_TKCONFIG], [
-    AC_MSG_CHECKING([the location of tkConfig.sh])
+    #
+    # Ok, lets find the tk configuration
+    # First, look for one uninstalled.
+    # the alternative search directory is invoked by --with-tk
+    #
 
-    if test -d ../../tk8.6$1/win;  then
-	TK_BIN_DIR_DEFAULT=../../tk8.6$1/win
-    elif test -d ../../tk8.6/win;  then
-	TK_BIN_DIR_DEFAULT=../../tk8.6/win
-    else
-	TK_BIN_DIR_DEFAULT=../../tk/win
-    fi
+    if test x"${no_tk}" = x ; then
+	# we reset no_tk in case something fails here
+	no_tk=true
+	AC_ARG_WITH(tk,
+	    AC_HELP_STRING([--with-tk],
+		[directory containing tk configuration (tkConfig.sh)]),
+	    with_tkconfig="${withval}")
+	AC_MSG_CHECKING([for Tk configuration])
+	AC_CACHE_VAL(ac_cv_c_tkconfig,[
+
+	    # First check to see if --with-tkconfig was specified.
+	    if test x"${with_tkconfig}" != x ; then
+		case "${with_tkconfig}" in
+		    */tkConfig.sh )
+			if test -f "${with_tkconfig}"; then
+			    AC_MSG_WARN([--with-tk argument should refer to directory containing tkConfig.sh, not to tkConfig.sh itself])
+			    with_tkconfig="`echo "${with_tkconfig}" | sed 's!/tkConfig\.sh$!!'`"
+			fi ;;
+		esac
+		if test -f "${with_tkconfig}/tkConfig.sh" ; then
+		    ac_cv_c_tkconfig="`(cd "${with_tkconfig}"; pwd)`"
+		else
+		    AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
+		fi
+	    fi
 
-    AC_ARG_WITH(tk, [  --with-tk=DIR          use Tk 8.6 binaries from DIR],
-	    TK_BIN_DIR=$withval, TK_BIN_DIR=`cd $TK_BIN_DIR_DEFAULT; pwd`)
-    if test ! -d $TK_BIN_DIR; then
-	AC_MSG_ERROR(Tk directory $TK_BIN_DIR does not exist)
-    fi
-    if test ! -f $TK_BIN_DIR/tkConfig.sh; then
-	AC_MSG_ERROR(There is no tkConfig.sh in $TK_BIN_DIR:  perhaps you did not specify the Tk *build* directory (not the toplevel Tk directory) or you forgot to configure Tk?)
-    fi
+	    # then check for a private Tk library
+	    if test x"${ac_cv_c_tkconfig}" = x ; then
+		for i in \
+			../tk \
+			`ls -dr ../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../tk[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \
+			../../tk \
+			`ls -dr ../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../../tk[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \
+			../../../tk \
+			`ls -dr ../../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../../../tk[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
+		    if test -f "$i/win/tkConfig.sh" ; then
+			ac_cv_c_tkconfig="`(cd $i/win; pwd)`"
+			break
+		    fi
+		done
+	    fi
 
-    AC_MSG_RESULT([$TK_BIN_DIR/tkConfig.sh])
+	    # check in a few common install locations
+	    if test x"${ac_cv_c_tkconfig}" = x ; then
+		for i in `ls -d ${libdir} 2>/dev/null` \
+			`ls -d ${exec_prefix}/lib 2>/dev/null` \
+			`ls -d ${prefix}/lib 2>/dev/null` \
+			`ls -d /cygdrive/c/Tcl/lib 2>/dev/null` \
+			`ls -d /cygdrive/c/Progra~1/Tcl/lib 2>/dev/null` \
+			`ls -d /c/Tcl/lib 2>/dev/null` \
+			`ls -d /c/Progra~1/Tcl/lib 2>/dev/null` \
+			`ls -d C:/Tcl/lib 2>/dev/null` \
+			`ls -d C:/Progra~1/Tcl/lib 2>/dev/null` \
+			; do
+		    if test -f "$i/tkConfig.sh" ; then
+			ac_cv_c_tkconfig="`(cd $i; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # check in a few other private locations
+	    if test x"${ac_cv_c_tkconfig}" = x ; then
+		for i in \
+			${srcdir}/../tk \
+			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
+		    if test -f "$i/win/tkConfig.sh" ; then
+			ac_cv_c_tkconfig="`(cd $i/win; pwd)`"
+			break
+		    fi
+		done
+	    fi
+	])
+
+	if test x"${ac_cv_c_tkconfig}" = x ; then
+	    TK_BIN_DIR="# no Tk configs found"
+	    AC_MSG_ERROR([Can't find Tk configuration definitions. Use --with-tk to specify a directory containing tkConfig.sh])
+	else
+	    no_tk=
+	    TK_BIN_DIR="${ac_cv_c_tkconfig}"
+	    AC_MSG_RESULT([found ${TK_BIN_DIR}/tkConfig.sh])
+	fi
+    fi
 ])
 
 #------------------------------------------------------------------------
@@ -95,7 +247,7 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 #
 # Results:
 #
-#	Subst the following vars:
+#	Substitutes the following vars:
 #		TCL_BIN_DIR
 #		TCL_SRC_DIR
 #		TCL_LIB_FILE
@@ -103,13 +255,13 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 #------------------------------------------------------------------------
 
 AC_DEFUN([SC_LOAD_TCLCONFIG], [
-    AC_MSG_CHECKING([for existence of $TCL_BIN_DIR/tclConfig.sh])
+    AC_MSG_CHECKING([for existence of ${TCL_BIN_DIR}/tclConfig.sh])
 
-    if test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
+    if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
         AC_MSG_RESULT([loading])
-	. $TCL_BIN_DIR/tclConfig.sh
+	. "${TCL_BIN_DIR}/tclConfig.sh"
     else
-        AC_MSG_RESULT([file not found])
+        AC_MSG_RESULT([could not find ${TCL_BIN_DIR}/tclConfig.sh])
     fi
 
     #
@@ -158,7 +310,6 @@ AC_DEFUN([SC_LOAD_TCLCONFIG], [
 # SC_LOAD_TKCONFIG --
 #
 #	Load the tkConfig.sh file
-#	Currently a no-op for Windows
 #
 # Arguments:
 #
@@ -172,13 +323,13 @@ AC_DEFUN([SC_LOAD_TCLCONFIG], [
 #------------------------------------------------------------------------
 
 AC_DEFUN([SC_LOAD_TKCONFIG], [
-    AC_MSG_CHECKING([for existence of $TK_BIN_DIR/tkConfig.sh])
+    AC_MSG_CHECKING([for existence of ${TK_BIN_DIR}/tkConfig.sh])
 
-    if test -f "$TK_BIN_DIR/tkConfig.sh" ; then
+    if test -f "${TK_BIN_DIR}/tkConfig.sh" ; then
         AC_MSG_RESULT([loading])
-	. $TK_BIN_DIR/tkConfig.sh
+	. "${TK_BIN_DIR}/tkConfig.sh"
     else
-        AC_MSG_RESULT([could not find $TK_BIN_DIR/tkConfig.sh])
+        AC_MSG_RESULT([could not find ${TK_BIN_DIR}/tkConfig.sh])
     fi
 
 
@@ -212,7 +363,7 @@ AC_DEFUN([SC_ENABLE_SHARED], [
     AC_MSG_CHECKING([how to build libraries])
     AC_ARG_ENABLE(shared,
 	[  --enable-shared         build and link with shared libraries (default: on)],
-    [tcl_ok=$enableval], [tcl_ok=yes])
+	[tcl_ok=$enableval], [tcl_ok=yes])
 
     if test "${enable_shared+set}" = set; then
 	enableval="$enable_shared"
@@ -227,7 +378,7 @@ AC_DEFUN([SC_ENABLE_SHARED], [
     else
 	AC_MSG_RESULT([static])
 	SHARED_BUILD=0
-	AC_DEFINE(STATIC_BUILD)
+	AC_DEFINE(STATIC_BUILD, 1, [Is this a static build?])
     fi
 ])
 
@@ -270,7 +421,7 @@ AC_DEFUN([SC_ENABLE_THREADS], [
 #------------------------------------------------------------------------
 # SC_ENABLE_SYMBOLS --
 #
-#	Specify if debugging symbols should be used
+#	Specify if debugging symbols should be used.
 #	Memory (TCL_MEM_DEBUG) and compile (TCL_COMPILE_DEBUG) debugging
 #	can also be enabled.
 #
@@ -372,6 +523,7 @@ AC_DEFUN([SC_ENABLE_SYMBOLS], [
 #		RES
 #
 #		MAKE_LIB
+#		MAKE_STUB_LIB
 #		MAKE_EXE
 #		MAKE_DLL
 #
@@ -420,7 +572,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
       AC_CACHE_CHECK(for cross-compile version of gcc,
 	ac_cv_cross,
 	AC_TRY_COMPILE([
-	    #ifndef __WIN32__
+	    #ifndef _WIN32
 		#error cross-compiler
 	    #endif
 	], [],
@@ -482,10 +634,12 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
     # set various compiler flags depending on whether we are using gcc or cl
 
     if test "${GCC}" = "yes" ; then
+	extra_cflags="-pipe"
+	extra_ldflags="-pipe -static-libgcc"
 	AC_CACHE_CHECK(for mingw32 version of gcc,
 	    ac_cv_win32,
 	    AC_TRY_COMPILE([
-		#ifdef __WIN32__
+		#ifdef _WIN32
 		    #error win32
 		#endif
 	    ], [],
@@ -529,13 +683,11 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	RC_DEFINE=--define
 	RES=res.o
 	MAKE_LIB="\${STLIB_LD} \[$]@"
+	MAKE_STUB_LIB="\${STLIB_LD} \[$]@"
 	POST_MAKE_LIB="\${RANLIB} \[$]@"
 	MAKE_EXE="\${CC} -o \[$]@"
 	LIBPREFIX="lib"
 
-	extra_cflags="$extra_cflags -pipe"
-	extra_ldflags="$extra_ldflags -pipe"
-
 	if test "${SHARED_BUILD}" = "0" ; then
 	    # static
             AC_MSG_RESULT([using static flags])
@@ -559,9 +711,8 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    LIBRARIES="\${SHARED_LIBRARIES}"
 	fi
 	# Link with gcc since ld does not link to default libs like
-	# -luser32 and -lmsvcrt by default. Make sure CFLAGS is
-	# included so -mno-cygwin passed the correct libs to the linker.
-	SHLIB_LD='${CC} -shared ${CFLAGS}'
+	# -luser32 and -lmsvcrt by default.
+	SHLIB_LD='${CC} -shared'
 	SHLIB_LD_LIBS='${LIBS}'
 	MAKE_DLL="\${SHLIB_LD} \$(LDFLAGS) -o \[$]@ ${extra_ldflags} \
 	    -Wl,--out-implib,\$(patsubst %.dll,lib%.a,\[$]@)"
@@ -810,6 +961,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	RC_DEFINE=-d
 	RES=res
 	MAKE_LIB="\${STLIB_LD} -out:\[$]@"
+	MAKE_STUB_LIB="\${STLIB_LD} -nodefaultlib -out:\[$]@"
 	POST_MAKE_LIB=
 	MAKE_EXE="\${CC} -Fe\[$]@"
 	LIBPREFIX=""
diff --git a/win/tclAppInit.c b/win/tclAppInit.c
index d6da500..e06eaf5 100644
--- a/win/tclAppInit.c
+++ b/win/tclAppInit.c
@@ -3,7 +3,8 @@
  *
  *	Provides a default version of the main program and Tcl_AppInit
  *	procedure for tclsh and other Tcl-based applications (without Tk).
- *	Note that this program must be built in Win32 console mode to work properly.
+ *	Note that this program must be built in Win32 console mode to work
+ *	properly.
  *
  * Copyright (c) 1993 The Regents of the University of California.
  * Copyright (c) 1994-1997 Sun Microsystems, Inc.
@@ -15,7 +16,9 @@
 
 #include "tcl.h"
 #define WIN32_LEAN_AND_MEAN
+#define STRICT			/* See MSDN Article Q83456 */
 #include <windows.h>
+#undef STRICT
 #undef WIN32_LEAN_AND_MEAN
 #include <locale.h>
 #include <stdlib.h>
@@ -33,19 +36,23 @@ extern Tcl_PackageInitProc Dde_SafeInit;
 #endif
 
 #ifdef TCL_BROKEN_MAINARGS
+int _CRT_glob = 0;
 static void setargv(int *argcPtr, TCHAR ***argvPtr);
-#endif
+#endif /* TCL_BROKEN_MAINARGS */
 
 /*
  * The following #if block allows you to change the AppInit function by using
  * a #define of TCL_LOCAL_APPINIT instead of rewriting this entire file. The
- * #if checks for that #define and uses Tcl_AppInit if it doesn't exist.
+ * #if checks for that #define and uses Tcl_AppInit if it does not exist.
  */
 
 #ifndef TCL_LOCAL_APPINIT
 #define TCL_LOCAL_APPINIT Tcl_AppInit
 #endif
-extern int TCL_LOCAL_APPINIT(Tcl_Interp *interp);
+#ifndef MODULE_SCOPE
+#   define MODULE_SCOPE extern
+#endif
+MODULE_SCOPE int TCL_LOCAL_APPINIT(Tcl_Interp *);
 
 /*
  * The following #if block allows you to change how Tcl finds the startup
@@ -54,7 +61,7 @@ extern int TCL_LOCAL_APPINIT(Tcl_Interp *interp);
  */
 
 #ifdef TCL_LOCAL_MAIN_HOOK
-extern int TCL_LOCAL_MAIN_HOOK(int *argc, TCHAR ***argv);
+MODULE_SCOPE int TCL_LOCAL_MAIN_HOOK(int *argc, TCHAR ***argv);
 #endif
 
 /*
@@ -77,15 +84,15 @@ extern int TCL_LOCAL_MAIN_HOOK(int *argc, TCHAR ***argv);
 #ifdef TCL_BROKEN_MAINARGS
 int
 main(
-    int argc,
-    char *dummy[])
+    int argc,			/* Number of command-line arguments. */
+    char *dummy[])		/* Not used. */
 {
     TCHAR **argv;
 #else
 int
 _tmain(
-    int argc,
-    TCHAR *argv[])
+    int argc,			/* Number of command-line arguments. */
+    TCHAR *argv[])		/* Values of command-line arguments. */
 {
 #endif
     TCHAR *p;
@@ -99,7 +106,7 @@ _tmain(
 
 #ifdef TCL_BROKEN_MAINARGS
     /*
-     * Get our args from the c-runtime. Ignore lpszCmdLine.
+     * Get our args from the c-runtime. Ignore command line.
      */
 
     setargv(&argc, &argv);
@@ -109,9 +116,9 @@ _tmain(
      * Forward slashes substituted for backslashes.
      */
 
-    for (p = argv[0]; *p != TEXT('\0'); p++) {
-	if (*p == TEXT('\\')) {
-	    *p = TEXT('/');
+    for (p = argv[0]; *p != '\0'; p++) {
+	if (*p == '\\') {
+	    *p = '/';
 	}
     }
 
@@ -189,11 +196,12 @@ Tcl_AppInit(
     /*
      * Specify a user-specific startup file to invoke if the application is
      * run interactively. Typically the startup file is "~/.apprc" where "app"
-     * is the name of the application. If this line is deleted then no user-
-     * specific startup file will be run under any conditions.
+     * is the name of the application. If this line is deleted then no
+     * user-specific startup file will be run under any conditions.
      */
 
-    (Tcl_SetVar)(interp, "tcl_rcFileName", "~/tclshrc.tcl", TCL_GLOBAL_ONLY);
+    (Tcl_ObjSetVar2)(interp, Tcl_NewStringObj("tcl_rcFileName", -1), NULL,
+	    Tcl_NewStringObj("~/tclshrc.tcl", -1), TCL_GLOBAL_ONLY);
     return TCL_OK;
 }
 
@@ -242,13 +250,13 @@ setargv(
      */
 
     size = 2;
-    for (p = cmdLine; *p != TEXT('\0'); p++) {
-	if ((*p == TEXT(' ')) || (*p == TEXT('\t'))) {	/* INTL: ISO space. */
+    for (p = cmdLine; *p != '\0'; p++) {
+	if ((*p == ' ') || (*p == '\t')) {	/* INTL: ISO space. */
 	    size++;
-	    while ((*p == TEXT(' ')) || (*p == TEXT('\t'))) { /* INTL: ISO space. */
+	    while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
 		p++;
 	    }
-	    if (*p == TEXT('\0')) {
+	    if (*p == '\0') {
 		break;
 	    }
 	}
@@ -267,10 +275,10 @@ setargv(
     p = cmdLine;
     for (argc = 0; argc < size; argc++) {
 	argv[argc] = arg = argSpace;
-	while ((*p == TEXT(' ')) || (*p == TEXT('\t'))) {	/* INTL: ISO space. */
+	while ((*p == ' ') || (*p == '\t')) {	/* INTL: ISO space. */
 	    p++;
 	}
-	if (*p == TEXT('\0')) {
+	if (*p == '\0') {
 	    break;
 	}
 
@@ -278,14 +286,14 @@ setargv(
 	slashes = 0;
 	while (1) {
 	    copy = 1;
-	    while (*p == TEXT('\\')) {
+	    while (*p == '\\') {
 		slashes++;
 		p++;
 	    }
-	    if (*p == TEXT('"')) {
+	    if (*p == '"') {
 		if ((slashes & 1) == 0) {
 		    copy = 0;
-		    if ((inquote) && (p[1] == TEXT('"'))) {
+		    if ((inquote) && (p[1] == '"')) {
 			p++;
 			copy = 1;
 		    } else {
@@ -296,13 +304,13 @@ setargv(
 	    }
 
 	    while (slashes) {
-		*arg = TEXT('\\');
+		*arg = '\\';
 		arg++;
 		slashes--;
 	    }
 
-	    if ((*p == TEXT('\0')) || (!inquote &&
-		    ((*p == TEXT(' ')) || (*p == TEXT('\t'))))) {	/* INTL: ISO space. */
+	    if ((*p == '\0') || (!inquote &&
+		    ((*p == ' ') || (*p == '\t')))) {	/* INTL: ISO space. */
 		break;
 	    }
 	    if (copy != 0) {
diff --git a/win/tclConfig.sh.in b/win/tclConfig.sh.in
index 65bc5c5..75324b2 100644
--- a/win/tclConfig.sh.in
+++ b/win/tclConfig.sh.in
@@ -1,5 +1,5 @@
 # tclConfig.sh --
-# 
+#
 # This shell script (for sh) is generated automatically by Tcl's
 # configure script.  It will create shell variables for most of
 # the configuration options discovered by the configure script.
@@ -175,6 +175,6 @@ TCL_BUILD_STUB_LIB_PATH='@TCL_BUILD_STUB_LIB_PATH@'
 # Path to the Tcl stub library in the install directory.
 TCL_STUB_LIB_PATH='@TCL_STUB_LIB_PATH@'
 
-# Flag, 1: we built Tcl with threads enables, 0 we didn't
+# Flag, 1: we built Tcl with threads enabled, 0 we didn't
 TCL_THREADS=@TCL_THREADS@
 
diff --git a/win/tclWin32Dll.c b/win/tclWin32Dll.c
index 019d76f..688fa8d 100644
--- a/win/tclWin32Dll.c
+++ b/win/tclWin32Dll.c
@@ -25,23 +25,6 @@
 static HINSTANCE hInstance;	/* HINSTANCE of this DLL. */
 static int platformId;		/* Running under NT, or 95/98? */
 
-#ifdef HAVE_NO_SEH
-/*
- * Unlike Borland and Microsoft, we don't register exception handlers by
- * pushing registration records onto the runtime stack. Instead, we register
- * them by creating an EXCEPTION_REGISTRATION within the activation record.
- */
-
-typedef struct EXCEPTION_REGISTRATION {
-    struct EXCEPTION_REGISTRATION *link;
-    EXCEPTION_DISPOSITION (*handler)(
-	    struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
-    void *ebp;
-    void *esp;
-    int status;
-} EXCEPTION_REGISTRATION;
-#endif
-
 /*
  * VC++ 5.x has no 'cpuid' assembler instruction, so we must emulate it
  */
@@ -86,7 +69,7 @@ TCL_DECLARE_MUTEX(mountPointMap)
  * We will need this below.
  */
 
-#ifdef __WIN32__
+#ifdef _WIN32
 #ifndef STATIC_BUILD
 
 /*
@@ -154,7 +137,7 @@ DllMain(
     return TRUE;
 }
 #endif /* !STATIC_BUILD */
-#endif /* __WIN32__ */
+#endif /* _WIN32 */
 
 /*
  *----------------------------------------------------------------------
@@ -198,11 +181,11 @@ void
 TclWinInit(
     HINSTANCE hInst)		/* Library instance handle. */
 {
-    OSVERSIONINFO os;
+    OSVERSIONINFOW os;
 
     hInstance = hInst;
-    os.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
-    GetVersionEx(&os);
+    os.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
+    GetVersionExW(&os);
     platformId = os.dwPlatformId;
 
     /*
@@ -281,16 +264,9 @@ TclWinNoBackslash(
 /*
  *---------------------------------------------------------------------------
  *
- * TclWinSetInterfaces --
+ * TclpSetInterfaces --
  *
- *	A helper proc that allows the test library to change the tclWinProcs
- *	structure to dispatch to either the wide-character or multi-byte
- *	versions of the operating system calls, depending on whether Unicode
- *	is the system encoding.
- *
- *	As well as this, we can also try to load in some additional procs
- *	which may/may not be present depending on the current Windows version
- *	(e.g. Win95 will not have the procs below).
+ *	A helper proc that initializes winTCharEncoding.
  *
  * Results:
  *	None.
@@ -302,15 +278,10 @@ TclWinNoBackslash(
  */
 
 void
-TclWinSetInterfaces(
-    int wide)			/* Non-zero to use wide interfaces, 0
-				 * otherwise. */
+TclpSetInterfaces(void)
 {
-	TclWinResetInterfaces();
-
-    if (wide) {
-	winTCharEncoding = Tcl_GetEncoding(NULL, "unicode");
-    }
+    TclWinResetInterfaces();
+    winTCharEncoding = Tcl_GetEncoding(NULL, "unicode");
 }
 
 /*
@@ -318,9 +289,7 @@ TclWinSetInterfaces(
  *
  * TclWinEncodingsCleanup --
  *
- *	Called during finalization to free up any encodings we use. The
- *	tclWinProcs-> look up table is still ok to use after this call,
- *	provided no encoding conversion is required.
+ *	Called during finalization to free up any encodings we use.
  *
  *	We also clean up any memory allocated in our mount point map which is
  *	used to follow certain kinds of symlinks. That code should never be
@@ -363,8 +332,6 @@ TclWinEncodingsCleanup(void)
  * TclWinResetInterfaces --
  *
  *	Called during finalization to reset us to a safe state for reuse.
- *	After this call, it is best not to use the tclWinProcs-> look up table
- *	since it is likely to be different to what is expected.
  *
  * Results:
  *	None.
@@ -678,7 +645,7 @@ TclWinCPUID(
 
 #   else
 
-    EXCEPTION_REGISTRATION registration;
+    TCLEXCEPTION_REGISTRATION registration;
 
     /*
      * Execute the CPUID instruction with the given index, and store results
@@ -687,7 +654,7 @@ TclWinCPUID(
 
     __asm__ __volatile__(
 	/*
-	 * Construct an EXCEPTION_REGISTRATION to protect the CPUID
+	 * Construct an TCLEXCEPTION_REGISTRATION to protect the CPUID
 	 * instruction (early 486's don't have CPUID)
 	 */
 
@@ -701,7 +668,7 @@ TclWinCPUID(
 	"movl	%[error],	0x10(%%edx)"	"\n\t" /* status */
 
 	/*
-	 * Link the EXCEPTION_REGISTRATION on the chain
+	 * Link the TCLEXCEPTION_REGISTRATION on the chain
 	 */
 
 	"movl	%%edx,		%%fs:0"		"\n\t"
@@ -720,7 +687,7 @@ TclWinCPUID(
 	"movl	%%edx,		0xc(%%edi)"	"\n\t"
 
 	/*
-	 * Come here on a normal exit. Recover the EXCEPTION_REGISTRATION and
+	 * Come here on a normal exit. Recover the TCLEXCEPTION_REGISTRATION and
 	 * store a TCL_OK status.
 	 */
 
@@ -730,7 +697,7 @@ TclWinCPUID(
 	"jmp	2f"				"\n"
 
 	/*
-	 * Come here on an exception. Get the EXCEPTION_REGISTRATION that we
+	 * Come here on an exception. Get the TCLEXCEPTION_REGISTRATION that we
 	 * previously put on the chain.
 	 */
 
@@ -740,7 +707,7 @@ TclWinCPUID(
 
 	/*
 	 * Come here however we exited. Restore context from the
-	 * EXCEPTION_REGISTRATION in case the stack is unbalanced.
+	 * TCLEXCEPTION_REGISTRATION in case the stack is unbalanced.
 	 */
 
 	"2:"					"\t"
diff --git a/win/tclWinChan.c b/win/tclWinChan.c
index 52b9e32..cca0dab 100644
--- a/win/tclWinChan.c
+++ b/win/tclWinChan.c
@@ -95,7 +95,7 @@ static void		FileThreadActionProc(ClientData instanceData,
 static int		FileTruncateProc(ClientData instanceData,
 			    Tcl_WideInt length);
 static DWORD		FileGetType(HANDLE handle);
-
+static int		NativeIsComPort(CONST TCHAR *nativeName);
 /*
  * This structure describes the channel type structure for file based IO.
  */
@@ -119,23 +119,6 @@ static const Tcl_ChannelType fileChannelType = {
     FileThreadActionProc,	/* Thread action proc. */
     FileTruncateProc		/* Truncate proc. */
 };
-
-#ifdef HAVE_NO_SEH
-/*
- * Unlike Borland and Microsoft, we don't register exception handlers by
- * pushing registration records onto the runtime stack. Instead, we register
- * them by creating an EXCEPTION_REGISTRATION within the activation record.
- */
-
-typedef struct EXCEPTION_REGISTRATION {
-    struct EXCEPTION_REGISTRATION *link;
-    EXCEPTION_DISPOSITION (*handler)(
-	    struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
-    void *ebp;
-    void *esp;
-    int status;
-} EXCEPTION_REGISTRATION;
-#endif
 
 /*
  *----------------------------------------------------------------------
@@ -679,6 +662,10 @@ FileInputProc(
     *errorCode = 0;
 
     /*
+     * TODO: This comment appears to be out of date.  We *do* have a
+     * console driver, over in tclWinConsole.c.  After some Windows
+     * developer confirms, this comment should be revised.
+     *
      * Note that we will block on reads from a console buffer until a full
      * line has been entered. The only way I know of to get around this is to
      * write a console driver. We should probably do this at some point, but
@@ -856,6 +843,11 @@ TclpOpenFileChannel(
 
     nativeName = Tcl_FSGetNativePath(pathPtr);
     if (nativeName == NULL) {
+	if (interp != (Tcl_Interp *) NULL) {
+	    Tcl_AppendResult(interp, "couldn't open \"",
+	    TclGetString(pathPtr), "\": filename is invalid on this platform",
+	    NULL);
+	}
 	return NULL;
     }
 
@@ -902,6 +894,33 @@ TclpOpenFileChannel(
     }
 
     /*
+     * [2413550] Avoid double-open of serial ports on Windows
+     * Special handling for Windows serial ports by a "name-hint"
+     * to directly open it with the OVERLAPPED flag set.
+     */
+
+    if( NativeIsComPort(nativeName) ) {
+
+	handle = TclWinSerialOpen(INVALID_HANDLE_VALUE, nativeName, accessMode);
+	if (handle == INVALID_HANDLE_VALUE) {
+	    TclWinConvertError(GetLastError());
+	    if (interp != (Tcl_Interp *) NULL) {
+		Tcl_AppendResult(interp, "couldn't open serial \"",
+			TclGetString(pathPtr), "\": ",
+			Tcl_PosixError(interp), NULL);
+	    }
+	    return NULL;
+	}
+
+	/*
+	* For natively named Windows serial ports we are done.
+	*/
+	channel = TclWinOpenSerialChannel(handle, channelName,
+		channelPermissions);
+
+	return channel;
+    }
+    /*
      * If the file is being created, get the file attributes from the
      * permissions argument, else use the existing file attributes.
      */
@@ -952,11 +971,15 @@ TclpOpenFileChannel(
     switch (FileGetType(handle)) {
     case FILE_TYPE_SERIAL:
 	/*
+	 * Natively named serial ports "com1-9", "\\\\.\\comXX" are
+	 * already done with the code above.
+	 * Here we handle all other serial port names.
+	 *
 	 * Reopen channel for OVERLAPPED operation. Normally this shouldn't
 	 * fail, because the channel exists.
 	 */
 
-	handle = TclWinSerialReopen(handle, nativeName, accessMode);
+	handle = TclWinSerialOpen(handle, nativeName, accessMode);
 	if (handle == INVALID_HANDLE_VALUE) {
 	    TclWinConvertError(GetLastError());
 	    if (interp != (Tcl_Interp *) NULL) {
@@ -1030,7 +1053,7 @@ Tcl_MakeFileChannel(
 				 * TCL_WRITABLE to indicate file mode. */
 {
 #if defined(HAVE_NO_SEH) && !defined(_WIN64)
-    EXCEPTION_REGISTRATION registration;
+    TCLEXCEPTION_REGISTRATION registration;
 #endif
     char channelName[16 + TCL_INTEGER_SPACE];
     Tcl_Channel channel = NULL;
@@ -1111,7 +1134,7 @@ Tcl_MakeFileChannel(
 	    "movl       %[dupedHandle], %%ebx"          "\n\t"
 
 	    /*
-	     * Construct an EXCEPTION_REGISTRATION to protect the call to
+	     * Construct an TCLEXCEPTION_REGISTRATION to protect the call to
 	     * CloseHandle.
 	     */
 
@@ -1125,7 +1148,7 @@ Tcl_MakeFileChannel(
 	    "movl       $0,             0x10(%%edx)"    "\n\t" /* status */
 
 	    /*
-	     * Link the EXCEPTION_REGISTRATION on the chain.
+	     * Link the TCLEXCEPTION_REGISTRATION on the chain.
 	     */
 
 	    "movl       %%edx,          %%fs:0"         "\n\t"
@@ -1138,7 +1161,7 @@ Tcl_MakeFileChannel(
 	    "call       _CloseHandle@4"                 "\n\t"
 
 	    /*
-	     * Come here on normal exit. Recover the EXCEPTION_REGISTRATION
+	     * Come here on normal exit. Recover the TCLEXCEPTION_REGISTRATION
 	     * and put a TRUE status return into it.
 	     */
 
@@ -1148,7 +1171,7 @@ Tcl_MakeFileChannel(
 	    "jmp        2f"                             "\n"
 
 	    /*
-	     * Come here on an exception. Recover the EXCEPTION_REGISTRATION
+	     * Come here on an exception. Recover the TCLEXCEPTION_REGISTRATION
 	     */
 
 	    "1:"                                        "\t"
@@ -1157,7 +1180,7 @@ Tcl_MakeFileChannel(
 
 	    /*
 	     * Come here however we exited. Restore context from the
-	     * EXCEPTION_REGISTRATION in case the stack is unbalanced.
+	     * TCLEXCEPTION_REGISTRATION in case the stack is unbalanced.
 	     */
 
 	    "2:"                                        "\t"
@@ -1496,6 +1519,66 @@ FileGetType(
     return type;
 }
 
+ /*
+ *----------------------------------------------------------------------
+ *
+ * NativeIsComPort --
+ *
+ *	Determines if a path refers to a Windows serial port.
+ *	A simple and efficient solution is to use a "name hint" to detect
+ *      COM ports by their filename instead of resorting to a syscall
+ *	to detect serialness after the fact.
+ *	The following patterns cover common serial port names:
+ *	    COM[1-9]
+ *	    \\.\COM[0-9]+
+ *
+ * Results:
+ *	1 = serial port, 0 = not.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+NativeIsComPort(
+    const TCHAR *nativePath)	/* Path of file to access, native encoding. */
+{
+    const WCHAR *p = (const WCHAR *) nativePath;
+    int i, len = wcslen(p);
+
+    /*
+     * 1. Look for com[1-9]:?
+     */
+
+    if ( (len == 4) && (_wcsnicmp(p, L"com", 3) == 0) ) {
+	/*
+	* The 4th character must be a digit 1..9
+	*/
+
+	if ( (p[3] < L'1') || (p[3] > L'9') ) {
+	    return 0;
+	}
+	return 1;
+    }
+
+    /*
+     * 2. Look for \\.\com[0-9]+
+     */
+
+    if ((len >= 8) && (_wcsnicmp(p, L"\\\\.\\com", 7) == 0)) {
+	/*
+	* Charaters 8..end must be a digits 0..9
+	*/
+
+	for ( i=7; i<len; i++ ) {
+	    if ( (p[i] < '0') || (p[i] > '9') ) {
+		return 0;
+	    }
+	}
+	return 1;
+    }
+    return 0;
+}
+
 /*
  * Local Variables:
  * mode: c
diff --git a/win/tclWinConsole.c b/win/tclWinConsole.c
index 5aab255..7380003 100644
--- a/win/tclWinConsole.c
+++ b/win/tclWinConsole.c
@@ -11,7 +11,6 @@
  */
 
 #include "tclWinInt.h"
-#include <sys/stat.h>
 
 /*
  * The following variable is used to tell whether this module has been
@@ -221,8 +220,20 @@ ReadConsoleBytes(
     BOOL result;
     int tcharsize = sizeof(TCHAR);
 
-    result = ReadConsole(hConsole, lpBuffer, nbytes / tcharsize, &ntchars,
-	    NULL);
+    /*
+     * If user types a Ctrl-Break or Ctrl-C, ReadConsole will return
+     * success with ntchars == 0 and GetLastError() will be
+     * ERROR_OPERATION_ABORTED. We do not want to treat this case
+     * as EOF so we will loop around again. If no Ctrl signal handlers
+     * have been established, the default signal OS handler in a separate 
+     * thread will terminate the program. If a Ctrl signal handler
+     * has been established (through an extension for example), it
+     * will run and take whatever action it deems appropriate.
+     */
+    do {
+        result = ReadConsole(hConsole, lpBuffer, nbytes / tcharsize, &ntchars,
+                             NULL);
+    } while (result && ntchars == 0 && GetLastError() == ERROR_OPERATION_ABORTED);
     if (nbytesread != NULL) {
 	*nbytesread = ntchars * tcharsize;
     }
@@ -757,6 +768,13 @@ ConsoleInputProc(
 
     if (ReadConsoleBytes(infoPtr->handle, (LPVOID) buf, (DWORD) bufSize,
 	    &count) == TRUE) {
+	/*
+	 * TODO: This potentially writes beyond the limits specified
+	 * by the caller.  In practice this is harmless, since all writes
+	 * are into ChannelBuffers, and those have padding, but still
+	 * ought to remove this, unless some Windows wizard can give
+	 * a reason not to.
+	 */
 	buf[count] = '\0';
 	return count;
     }
@@ -801,7 +819,7 @@ ConsoleOutputProc(
 	 * the channel is in non-blocking mode.
 	 */
 
-	errno = EAGAIN;
+	errno = EWOULDBLOCK;
 	goto error;
     }
 
@@ -1080,7 +1098,7 @@ WaitForRead(
 	     * is in non-blocking mode.
 	     */
 
-	    errno = EAGAIN;
+	    errno = EWOULDBLOCK;
 	    return -1;
 	}
 
diff --git a/win/tclWinDde.c b/win/tclWinDde.c
index 23b3a8e..ce0b413 100644
--- a/win/tclWinDde.c
+++ b/win/tclWinDde.c
@@ -11,19 +11,14 @@
  */
 
 #undef STATIC_BUILD
-#undef USE_TCL_STUBS
-#define USE_TCL_STUBS
+#ifndef USE_TCL_STUBS
+#   define USE_TCL_STUBS
+#endif
 #include "tclInt.h"
 #include <dde.h>
 #include <ddeml.h>
 
-#ifdef UNICODE
-#   if !defined(NDEBUG)
-	/* test POKE server Implemented for UNICODE in debug mode only */
-#	undef CBF_FAIL_POKES
-#	define CBF_FAIL_POKES 0
-#   endif
-#else
+#ifndef UNICODE
 #   undef CP_WINUNICODE
 #   define CP_WINUNICODE CP_WINANSI
 #   undef Tcl_WinTCharToUtf
@@ -32,6 +27,12 @@
 #   define Tcl_WinUtfToTChar(a,b,c) Tcl_UtfToExternalDString(NULL,a,b,c)
 #endif
 
+#if !defined(NDEBUG)
+    /* test POKE server Implemented for debug mode only */
+#   undef CBF_FAIL_POKES
+#   define CBF_FAIL_POKES 0
+#endif
+
 /*
  * TCL_STORAGE_CLASS is set unconditionally to DLLEXPORT because the Dde_Init
  * declaration is in the source file itself, which is only accessed when we
@@ -96,7 +97,7 @@ static DWORD ddeInstance;	/* The application instance handle given to us
 				 * by DdeInitialize. */
 static int ddeIsServer = 0;
 
-#define TCL_DDE_VERSION		"1.4.0b1"
+#define TCL_DDE_VERSION		"1.4.0"
 #define TCL_DDE_PACKAGE_NAME	"dde"
 #define TCL_DDE_SERVICE_NAME	TEXT("TclEval")
 #define TCL_DDE_EXECUTE_RESULT	TEXT("$TCLEVAL$EXECUTE$RESULT")
@@ -385,7 +386,8 @@ DdeSetServerName(
 		    Tcl_DStringSetLength(&dString, offset + sizeof(TCHAR) * TCL_INTEGER_SPACE);
 		    actualName = (TCHAR *) Tcl_DStringValue(&dString);
 		}
-		_stprintf((TCHAR *) (Tcl_DStringValue(&dString) + offset), TEXT("%d"), suffix);
+		_sntprintf((TCHAR *) (Tcl_DStringValue(&dString) + offset),
+			TCL_INTEGER_SPACE, TEXT("%d"), suffix);
 	    }
 
 	    /*
@@ -756,7 +758,7 @@ DdeServerProc(
 		} else {
 		    returnString = (char *)
 			    Tcl_GetUnicodeFromObj(convPtr->returnPackagePtr, &len);
-		    len = 2 * len + 1;
+		    len = sizeof(TCHAR) * len + 1;
 		}
 		ddeReturn = DdeCreateDataHandle(ddeInstance, (BYTE *)returnString,
 			(DWORD) len+1, 0, ddeItem, uFmt, 0);
@@ -777,7 +779,7 @@ DdeServerProc(
 			} else {
 			    returnString = (char *) Tcl_GetUnicodeFromObj(
 				    variableObjPtr, &len);
-			    len = 2 * len + 1;
+			    len = sizeof(TCHAR) * len + 1;
 			}
 			ddeReturn = DdeCreateDataHandle(ddeInstance,
 				(BYTE *)returnString, (DWORD) len+1, 0, ddeItem,
@@ -1494,15 +1496,15 @@ DdeObjCmd(
 
     case DDE_EXECUTE: {
 	int dataLength;
-	const char *dataString;
+	const Tcl_UniChar *dataString;
 
 	if (flags & DDE_FLAG_BINARY) {
-	    dataString = (const char *)
+	    dataString = (const Tcl_UniChar *)
 		    Tcl_GetByteArrayFromObj(objv[firstArg + 2], &dataLength);
 	} else {
 	    dataString =
-		    Tcl_GetStringFromObj(objv[firstArg + 2], &dataLength);
-	    dataLength += 1;
+		    Tcl_GetUnicodeFromObj(objv[firstArg + 2], &dataLength);
+	    dataLength = (dataLength + 1) * sizeof(Tcl_UniChar);
 	}
 
 	if (dataLength <= 0) {
@@ -1523,15 +1525,15 @@ DdeObjCmd(
 	}
 
 	ddeData = DdeCreateDataHandle(ddeInstance, (BYTE *) dataString,
-		(DWORD) dataLength, 0, 0, CF_TEXT, 0);
+		(DWORD) dataLength, 0, 0, (flags & DDE_FLAG_BINARY) ? CF_TEXT : CF_UNICODETEXT, 0);
 	if (ddeData != NULL) {
 	    if (flags & DDE_FLAG_ASYNC) {
 		DdeClientTransaction((LPBYTE) ddeData, 0xFFFFFFFF, hConv, 0,
-			CF_TEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult);
+			(flags & DDE_FLAG_BINARY) ? CF_TEXT : CF_UNICODETEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult);
 		DdeAbandonTransaction(ddeInstance, hConv, ddeResult);
 	    } else {
 		ddeReturn = DdeClientTransaction((LPBYTE) ddeData, 0xFFFFFFFF,
-			hConv, 0, CF_TEXT, XTYP_EXECUTE, 30000, NULL);
+			hConv, 0, (flags & DDE_FLAG_BINARY) ? CF_TEXT : CF_UNICODETEXT, XTYP_EXECUTE, 30000, NULL);
 		if (ddeReturn == 0) {
 		    SetDdeError(interp);
 		    result = TCL_ERROR;
@@ -1573,22 +1575,23 @@ DdeObjCmd(
 		    CP_WINUNICODE);
 	    if (ddeItem != NULL) {
 		ddeData = DdeClientTransaction(NULL, 0, hConv, ddeItem,
-			CF_TEXT, XTYP_REQUEST, 5000, NULL);
+			(flags & DDE_FLAG_BINARY) ? CF_TEXT : CF_UNICODETEXT, XTYP_REQUEST, 5000, NULL);
 		if (ddeData == NULL) {
 		    SetDdeError(interp);
 		    result = TCL_ERROR;
 		} else {
 		    DWORD tmp;
-		    const char *dataString = (const char *) DdeAccessData(ddeData, &tmp);
+		    const Tcl_UniChar *dataString = (const Tcl_UniChar *) DdeAccessData(ddeData, &tmp);
 
 		    if (flags & DDE_FLAG_BINARY) {
 			returnObjPtr =
 				Tcl_NewByteArrayObj((BYTE *) dataString, (int) tmp);
 		    } else {
-			if (tmp && !dataString[tmp-1]) {
+			tmp >>= 1;
+			if (tmp && !dataString[(tmp-1)]) {
 			    --tmp;
 			}
-			returnObjPtr = Tcl_NewStringObj(dataString,
+			returnObjPtr = Tcl_NewUnicodeObj(dataString,
 				(int) tmp);
 		    }
 		    DdeUnaccessData(ddeData);
@@ -1625,8 +1628,8 @@ DdeObjCmd(
 		    Tcl_GetByteArrayFromObj(objv[firstArg + 3], &length);
 	} else {
 	    dataString = (BYTE *)
-		    Tcl_GetStringFromObj(objv[firstArg + 3], &length);
-	    length += 1;
+		    Tcl_GetUnicodeFromObj(objv[firstArg + 3], &length);
+	    length = 2 * length + 1;
 	}
 
 	hConv = DdeConnect(ddeInstance, ddeService, ddeTopic, NULL);
@@ -1641,7 +1644,7 @@ DdeObjCmd(
 		    CP_WINUNICODE);
 	    if (ddeItem != NULL) {
 		ddeData = DdeClientTransaction(dataString, (DWORD) length,
-			hConv, ddeItem, CF_TEXT, XTYP_POKE, 5000, NULL);
+			hConv, ddeItem, (flags & DDE_FLAG_BINARY) ? CF_TEXT : CF_UNICODETEXT, XTYP_POKE, 5000, NULL);
 		if (ddeData == NULL) {
 		    SetDdeError(interp);
 		    result = TCL_ERROR;
@@ -1784,24 +1787,24 @@ DdeObjCmd(
 	    }
 
 	    objPtr = Tcl_ConcatObj(objc, objv);
-	    string = Tcl_GetStringFromObj(objPtr, &length);
+	    string = (const char *) Tcl_GetUnicodeFromObj(objPtr, &length);
 	    ddeItemData = DdeCreateDataHandle(ddeInstance,
-		    (BYTE *) string, (DWORD) length+1, 0, 0, CF_TEXT, 0);
+		    (BYTE *) string, (DWORD) 2*length+2, 0, 0, CF_UNICODETEXT, 0);
 
 	    if (flags & DDE_FLAG_ASYNC) {
 		ddeData = DdeClientTransaction((LPBYTE) ddeItemData,
 			0xFFFFFFFF, hConv, 0,
-			CF_TEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult);
+			CF_UNICODETEXT, XTYP_EXECUTE, TIMEOUT_ASYNC, &ddeResult);
 		DdeAbandonTransaction(ddeInstance, hConv, ddeResult);
 	    } else {
 		ddeData = DdeClientTransaction((LPBYTE) ddeItemData,
 			0xFFFFFFFF, hConv, 0,
-			CF_TEXT, XTYP_EXECUTE, 30000, NULL);
+			CF_UNICODETEXT, XTYP_EXECUTE, 30000, NULL);
 		if (ddeData != 0) {
 		    ddeCookie = DdeCreateStringHandle(ddeInstance,
 			    TCL_DDE_EXECUTE_RESULT, CP_WINUNICODE);
 		    ddeData = DdeClientTransaction(NULL, 0, hConv, ddeCookie,
-			    CF_TEXT, XTYP_REQUEST, 30000, NULL);
+			    CF_UNICODETEXT, XTYP_REQUEST, 30000, NULL);
 		}
 	    }
 
@@ -1815,6 +1818,7 @@ DdeObjCmd(
 
 	    if (!(flags & DDE_FLAG_ASYNC)) {
 		Tcl_Obj *resultPtr;
+		Tcl_UniChar *ddeDataString;
 
 		/*
 		 * The return handle has a two or four element list in it. The
@@ -1827,10 +1831,11 @@ DdeObjCmd(
 
 		resultPtr = Tcl_NewObj();
 		length = DdeGetData(ddeData, NULL, 0, 0);
-		Tcl_SetObjLength(resultPtr, (length + 1) * sizeof(TCHAR) - 1);
-		string = Tcl_GetString(resultPtr);
-		DdeGetData(ddeData, (BYTE *) string, (DWORD) length, 0);
-		Tcl_SetObjLength(resultPtr, (int) strlen(string));
+		ddeDataString = ckalloc(length);
+		DdeGetData(ddeData, (BYTE *) ddeDataString, (DWORD) length, 0);
+		length = (length >> 1) - 1;
+		resultPtr = Tcl_NewUnicodeObj(ddeDataString, length);
+		ckfree(ddeDataString);
 
 		if (Tcl_ListObjIndex(NULL, resultPtr, 0, &objPtr) != TCL_OK) {
 		    Tcl_DecrRefCount(resultPtr);
diff --git a/win/tclWinError.c b/win/tclWinError.c
index 49eeed3..4d3250d 100644
--- a/win/tclWinError.c
+++ b/win/tclWinError.c
@@ -292,7 +292,7 @@ static const unsigned char errorTable[] = {
  */
 
 static const unsigned char wsaErrorTable[] = {
-    EAGAIN,		/* WSAEWOULDBLOCK */
+    EWOULDBLOCK,	/* WSAEWOULDBLOCK */
     EINPROGRESS,	/* WSAEINPROGRESS */
     EALREADY,		/* WSAEALREADY */
     ENOTSOCK,		/* WSAENOTSOCK */
diff --git a/win/tclWinFCmd.c b/win/tclWinFCmd.c
index 80fad3e..52ea8c6 100644
--- a/win/tclWinFCmd.c
+++ b/win/tclWinFCmd.c
@@ -67,25 +67,6 @@ const TclFileAttrProcs tclpFileAttrProcs[] = {
 	{GetWinFileShortName, CannotSetAttribute},
 	{GetWinFileAttributes, SetWinFileAttributes}};
 
-#ifdef HAVE_NO_SEH
-
-/*
- * Unlike Borland and Microsoft, we don't register exception handlers by
- * pushing registration records onto the runtime stack. Instead, we register
- * them by creating an EXCEPTION_REGISTRATION within the activation record.
- */
-
-typedef struct EXCEPTION_REGISTRATION {
-    struct EXCEPTION_REGISTRATION *link;
-    EXCEPTION_DISPOSITION (*handler)(
-	    struct _EXCEPTION_RECORD *, void *, struct _CONTEXT *, void *);
-    void *ebp;
-    void *esp;
-    int status;
-} EXCEPTION_REGISTRATION;
-
-#endif
-
 /*
  * Prototype for the TraverseWinTree callback function.
  */
@@ -176,7 +157,7 @@ DoRenameFile(
 				 * (native). */
 {
 #if defined(HAVE_NO_SEH) && !defined(_WIN64)
-    EXCEPTION_REGISTRATION registration;
+    TCLEXCEPTION_REGISTRATION registration;
 #endif
     DWORD srcAttr, dstAttr;
     int retval = -1;
@@ -213,7 +194,7 @@ DoRenameFile(
 	"movl	    %[nativeSrc],   %%ecx"	    "\n\t"
 
 	/*
-	 * Construct an EXCEPTION_REGISTRATION to protect the call to
+	 * Construct an TCLEXCEPTION_REGISTRATION to protect the call to
 	 * MoveFile.
 	 */
 
@@ -227,7 +208,7 @@ DoRenameFile(
 	"movl	    $0,		    0x10(%%edx)"    "\n\t" /* status */
 
 	/*
-	 * Link the EXCEPTION_REGISTRATION on the chain.
+	 * Link the TCLEXCEPTION_REGISTRATION on the chain.
 	 */
 
 	"movl	    %%edx,	    %%fs:0"	    "\n\t"
@@ -242,7 +223,7 @@ DoRenameFile(
 	"call	    *%%eax"			    "\n\t"
 
 	/*
-	 * Come here on normal exit. Recover the EXCEPTION_REGISTRATION and
+	 * Come here on normal exit. Recover the TCLEXCEPTION_REGISTRATION and
 	 * put the status return from MoveFile into it.
 	 */
 
@@ -251,7 +232,7 @@ DoRenameFile(
 	"jmp	    2f"				    "\n"
 
 	/*
-	 * Come here on an exception. Recover the EXCEPTION_REGISTRATION
+	 * Come here on an exception. Recover the TCLEXCEPTION_REGISTRATION
 	 */
 
 	"1:"					    "\t"
@@ -260,7 +241,7 @@ DoRenameFile(
 
 	/*
 	 * Come here however we exited. Restore context from the
-	 * EXCEPTION_REGISTRATION in case the stack is unbalanced.
+	 * TCLEXCEPTION_REGISTRATION in case the stack is unbalanced.
 	 */
 
 	"2:"					    "\t"
@@ -563,7 +544,7 @@ DoCopyFile(
     const TCHAR *nativeDst)	/* Pathname of file to copy to (native). */
 {
 #if defined(HAVE_NO_SEH) && !defined(_WIN64)
-    EXCEPTION_REGISTRATION registration;
+    TCLEXCEPTION_REGISTRATION registration;
 #endif
     int retval = -1;
 
@@ -600,7 +581,7 @@ DoCopyFile(
 	"movl	    %[nativeSrc],   %%ecx"	    "\n\t"
 
 	/*
-	 * Construct an EXCEPTION_REGISTRATION to protect the call to
+	 * Construct an TCLEXCEPTION_REGISTRATION to protect the call to
 	 * CopyFile.
 	 */
 
@@ -614,7 +595,7 @@ DoCopyFile(
 	"movl	    $0,		    0x10(%%edx)"    "\n\t" /* status */
 
 	/*
-	 * Link the EXCEPTION_REGISTRATION on the chain.
+	 * Link the TCLEXCEPTION_REGISTRATION on the chain.
 	 */
 
 	"movl	    %%edx,	    %%fs:0"	    "\n\t"
@@ -630,7 +611,7 @@ DoCopyFile(
 	"call	    *%%eax"			    "\n\t"
 
 	/*
-	 * Come here on normal exit. Recover the EXCEPTION_REGISTRATION and
+	 * Come here on normal exit. Recover the TCLEXCEPTION_REGISTRATION and
 	 * put the status return from CopyFile into it.
 	 */
 
@@ -639,7 +620,7 @@ DoCopyFile(
 	"jmp	    2f"				    "\n"
 
 	/*
-	 * Come here on an exception. Recover the EXCEPTION_REGISTRATION
+	 * Come here on an exception. Recover the TCLEXCEPTION_REGISTRATION
 	 */
 
 	"1:"					    "\t"
@@ -648,7 +629,7 @@ DoCopyFile(
 
 	/*
 	 * Come here however we exited. Restore context from the
-	 * EXCEPTION_REGISTRATION in case the stack is unbalanced.
+	 * TCLEXCEPTION_REGISTRATION in case the stack is unbalanced.
 	 */
 
 	"2:"					    "\t"
@@ -1105,49 +1086,6 @@ DoRemoveJustDirectory(
 		SetFileAttributes(nativePath,
 			attr | FILE_ATTRIBUTE_READONLY);
 	    }
-
-	    /*
-	     * Windows 95 reports removing a non-empty directory as
-	     * EACCES, not EEXIST. If the directory is not empty, change errno
-	     * so caller knows what's going on.
-	     */
-
-	    if (TclWinGetPlatformId() == VER_PLATFORM_WIN32_WINDOWS) {
-		const char *path, *find;
-		HANDLE handle;
-		WIN32_FIND_DATAA data;
-		Tcl_DString buffer;
-		int len;
-
-		path = (const char *) nativePath;
-
-		Tcl_DStringInit(&buffer);
-		len = strlen(path);
-		find = Tcl_DStringAppend(&buffer, path, len);
-		if ((len > 0) && (find[len - 1] != '\\')) {
-		    TclDStringAppendLiteral(&buffer, "\\");
-		}
-		find = TclDStringAppendLiteral(&buffer, "*.*");
-		handle = FindFirstFileA(find, &data);
-		if (handle != INVALID_HANDLE_VALUE) {
-		    while (1) {
-			if ((strcmp(data.cFileName, ".") != 0)
-				&& (strcmp(data.cFileName, "..") != 0)) {
-			    /*
-			     * Found something in this directory.
-			     */
-
-			    Tcl_SetErrno(EEXIST);
-			    break;
-			}
-			if (FindNextFileA(handle, &data) == FALSE) {
-			    break;
-			}
-		    }
-		    FindClose(handle);
-		}
-		Tcl_DStringFree(&buffer);
-	    }
 	}
     }
 
@@ -1170,7 +1108,12 @@ DoRemoveJustDirectory(
 
   end:
     if (errorPtr != NULL) {
+	char *p;
 	Tcl_WinTCharToUtf(nativePath, -1, errorPtr);
+	p = Tcl_DStringValue(errorPtr);
+	for (; *p; ++p) {
+	    if (*p == '\\') *p = '/';
+	}
     }
     return TCL_ERROR;
 
@@ -1738,11 +1681,11 @@ ConvertFileNameFormat(
 	    }
 	    nativeName = data.cAlternateFileName;
 	    if (longShort) {
-		if (data.cFileName[0] != TEXT('\0')) {
+		if (data.cFileName[0] != '\0') {
 		    nativeName = data.cFileName;
 		}
 	    } else {
-		if (data.cAlternateFileName[0] == TEXT('\0')) {
+		if (data.cAlternateFileName[0] == '\0') {
 		    nativeName = (TCHAR *) data.cFileName;
 		}
 	    }
@@ -1887,12 +1830,12 @@ SetWinFileAttributes(
     Tcl_Obj *fileName,		/* The name of the file. */
     Tcl_Obj *attributePtr)	/* The new value of the attribute. */
 {
-    DWORD fileAttributes;
+    DWORD fileAttributes, old;
     int yesNo, result;
     const TCHAR *nativeName;
 
     nativeName = Tcl_FSGetNativePath(fileName);
-    fileAttributes = GetFileAttributes(nativeName);
+    fileAttributes = old = GetFileAttributes(nativeName);
 
     if (fileAttributes == 0xffffffff) {
 	StatError(interp, fileName);
@@ -1910,7 +1853,8 @@ SetWinFileAttributes(
 	fileAttributes &= ~(attributeArray[objIndex]);
     }
 
-    if (!SetFileAttributes(nativeName, fileAttributes)) {
+    if ((fileAttributes != old)
+	    && !SetFileAttributes(nativeName, fileAttributes)) {
 	StatError(interp, fileName);
 	return TCL_ERROR;
     }
diff --git a/win/tclWinFile.c b/win/tclWinFile.c
index a44a257..a5b14b4 100644
--- a/win/tclWinFile.c
+++ b/win/tclWinFile.c
@@ -15,7 +15,6 @@
 #include "tclWinInt.h"
 #include "tclFileSystem.h"
 #include <winioctl.h>
-#include <sys/stat.h>
 #include <shlobj.h>
 #include <lm.h>		/* For TclpGetUserHome(). */
 
@@ -160,7 +159,7 @@ static unsigned short	NativeStatMode(DWORD attr, int checkLinks,
 			    int isExec);
 static int		NativeIsExec(const TCHAR *path);
 static int		NativeReadReparse(const TCHAR *LinkDirectory,
-			    REPARSE_DATA_BUFFER *buffer);
+			    REPARSE_DATA_BUFFER *buffer, DWORD desiredAccess);
 static int		NativeWriteReparse(const TCHAR *LinkDirectory,
 			    REPARSE_DATA_BUFFER *buffer);
 static int		NativeMatchType(int isDrive, DWORD attr,
@@ -444,7 +443,7 @@ TclWinSymLinkCopyDirectory(
     DUMMY_REPARSE_BUFFER dummy;
     REPARSE_DATA_BUFFER *reparseBuffer = (REPARSE_DATA_BUFFER *) &dummy;
 
-    if (NativeReadReparse(linkOrigPath, reparseBuffer)) {
+    if (NativeReadReparse(linkOrigPath, reparseBuffer, GENERIC_READ)) {
 	return -1;
     }
     return NativeWriteReparse(linkCopyPath, reparseBuffer);
@@ -542,7 +541,7 @@ WinReadLinkDirectory(
     if (!(attr & FILE_ATTRIBUTE_REPARSE_POINT)) {
 	goto invalidError;
     }
-    if (NativeReadReparse(linkDirPath, reparseBuffer)) {
+    if (NativeReadReparse(linkDirPath, reparseBuffer, 0)) {
 	return NULL;
     }
 
@@ -663,12 +662,13 @@ WinReadLinkDirectory(
 static int
 NativeReadReparse(
     const TCHAR *linkDirPath,	/* The junction to read */
-    REPARSE_DATA_BUFFER *buffer)/* Pointer to buffer. Cannot be NULL */
+    REPARSE_DATA_BUFFER *buffer,/* Pointer to buffer. Cannot be NULL */
+    DWORD desiredAccess)
 {
     HANDLE hFile;
     DWORD returnedLength;
 
-    hFile = CreateFile(linkDirPath, GENERIC_READ, 0, NULL, OPEN_EXISTING,
+    hFile = CreateFile(linkDirPath, desiredAccess, FILE_SHARE_READ, NULL, OPEN_EXISTING,
 	    FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS, NULL);
 
     if (hFile == INVALID_HANDLE_VALUE) {
@@ -799,7 +799,7 @@ tclWinDebugPanic(
     WCHAR msgString[TCL_MAX_WARN_LEN];
 
     va_start(argList, format);
-    _vsnprintf(buf, sizeof(buf), format, argList);
+    vsnprintf(buf, sizeof(buf), format, argList);
 
     msgString[TCL_MAX_WARN_LEN-1] = L'\0';
     MultiByteToWideChar(CP_UTF8, 0, buf, -1, msgString, TCL_MAX_WARN_LEN);
@@ -1241,9 +1241,9 @@ WinIsReserved(
     if ((path[0] == 'c' || path[0] == 'C')
 	    && (path[1] == 'o' || path[1] == 'O')) {
 	if ((path[2] == 'm' || path[2] == 'M')
-		&& path[3] >= '1' && path[3] <= '4') {
+		&& path[3] >= '1' && path[3] <= '9') {
 	    /*
-	     * May have match for 'com[1-4]:?', which is a serial port.
+	     * May have match for 'com[1-9]:?', which is a serial port.
 	     */
 
 	    if (path[4] == '\0') {
@@ -1262,9 +1262,9 @@ WinIsReserved(
     } else if ((path[0] == 'l' || path[0] == 'L')
 	    && (path[1] == 'p' || path[1] == 'P')
 	    && (path[2] == 't' || path[2] == 'T')) {
-	if (path[3] >= '1' && path[3] <= '3') {
+	if (path[3] >= '1' && path[3] <= '9') {
 	    /*
-	     * May have match for 'lpt[1-3]:?'
+	     * May have match for 'lpt[1-9]:?'
 	     */
 
 	    if (path[4] == '\0') {
@@ -1537,14 +1537,9 @@ NativeAccess(
 	 * File might not exist.
 	 */
 
-	WIN32_FIND_DATA ffd;
-	HANDLE hFind;
-	hFind = FindFirstFile(nativePath, &ffd);
-	if (hFind != INVALID_HANDLE_VALUE) {
-	    attr = ffd.dwFileAttributes;
-	    FindClose(hFind);
-	} else {
-	    TclWinConvertError(GetLastError());
+	DWORD lasterror = GetLastError();
+	if (lasterror != ERROR_SHARING_VIOLATION) {
+	    TclWinConvertError(lasterror);
 	    return -1;
 	}
     }
@@ -1784,7 +1779,7 @@ NativeIsExec(
 	return 0;
     }
 
-    if (path[len-4] != TEXT('.')) {
+    if (path[len-4] != '.') {
 	return 0;
     }
 
@@ -1821,6 +1816,9 @@ TclpObjChdir(
 
     nativePath = Tcl_FSGetNativePath(pathPtr);
 
+    if (!nativePath) {
+	return -1;
+    }
     result = SetCurrentDirectory(nativePath);
 
     if (result == 0) {
@@ -2002,15 +2000,17 @@ NativeStat(
 
 	if (GetFileAttributesEx(nativePath,
 		GetFileExInfoStandard, &data) != TRUE) {
-	    /*
-	     * We might have just been denied access
-	     */
-
+	    HANDLE hFind;
 	    WIN32_FIND_DATA ffd;
-	    HANDLE hFind = FindFirstFile(nativePath, &ffd);
+	    DWORD lasterror = GetLastError();
 
+	    if (lasterror != ERROR_SHARING_VIOLATION) {
+		TclWinConvertError(lasterror);
+		return -1;
+		}
+	    hFind = FindFirstFile(nativePath, &ffd);
 	    if (hFind == INVALID_HANDLE_VALUE) {
-		Tcl_SetErrno(ENOENT);
+		TclWinConvertError(GetLastError());
 		return -1;
 	    }
 	    memcpy(&data, &ffd, sizeof(data));
@@ -2418,361 +2418,213 @@ TclpObjNormalizePath(
     Tcl_DStringInit(&dsNorm);
     path = Tcl_GetString(pathPtr);
 
-    if (TclWinGetPlatformId() == VER_PLATFORM_WIN32_WINDOWS) {
-	/*
-	 * We're on Win95, 98 or ME. There are two assumptions in this block
-	 * of code. First that the native (NULL) encoding is basically ascii,
-	 * and second that symbolic links are not possible. Both of these
-	 * assumptions appear to be true of these operating systems.
-	 *
-	 * FIXME: This code branch may be derelict as those are not supported
-	 * platforms any more.
-	 */
-
-	currentPathEndPosition = path + nextCheckpoint;
-	if (*currentPathEndPosition == '/') {
-	    currentPathEndPosition++;
-	}
-
-	while (1) {
-	    char cur = *currentPathEndPosition;
+    currentPathEndPosition = path + nextCheckpoint;
+    if (*currentPathEndPosition == '/') {
+	currentPathEndPosition++;
+    }
+    while (1) {
+	char cur = *currentPathEndPosition;
 
-	    if ((cur=='/' || cur==0) && (path != currentPathEndPosition)) {
-		/*
-		 * Reached directory separator, or end of string.
-		 */
+	if ((cur=='/' || cur==0) && (path != currentPathEndPosition)) {
+	    /*
+	     * Reached directory separator, or end of string.
+	     */
 
-		const char *nativePath = Tcl_UtfToExternalDString(NULL, path,
-			currentPathEndPosition - path, &ds);
+	    WIN32_FILE_ATTRIBUTE_DATA data;
+	    const TCHAR *nativePath = Tcl_WinUtfToTChar(path,
+		    currentPathEndPosition - path, &ds);
 
+	    if (GetFileAttributesEx(nativePath,
+		    GetFileExInfoStandard, &data) != TRUE) {
 		/*
-		 * Now we convert the tail of the current path to its 'long
-		 * form', and append it to 'dsNorm' which holds the current
-		 * normalized path, if the file exists.
+		 * File doesn't exist.
 		 */
 
 		if (isDrive) {
-		    if (GetFileAttributesA(nativePath)
-			    == INVALID_FILE_ATTRIBUTES) {
-			/*
-			 * File doesn't exist.
-			 */
-
-			if (isDrive) {
-			    int len = WinIsReserved(path);
-
-			    if (len > 0) {
-				/*
-				 * Actually it does exist - COM1, etc.
-				 */
-
-				int i;
-
-				for (i=0 ; i<len ; i++) {
-				    if (nativePath[i] >= 'a') {
-					((char *) nativePath)[i] -= ('a'-'A');
-				    }
-				}
-				Tcl_DStringAppend(&dsNorm, nativePath, len);
-				lastValidPathEnd = currentPathEndPosition;
-			    }
-			}
-			Tcl_DStringFree(&ds);
-			break;
-		    }
-		    if (nativePath[0] >= 'a') {
-			((char *) nativePath)[0] -= ('a' - 'A');
-		    }
-		    Tcl_DStringAppend(&dsNorm, nativePath,
-			    Tcl_DStringLength(&ds));
-		} else {
-		    char *checkDots = NULL;
-
-		    if (lastValidPathEnd[1] == '.') {
-			checkDots = lastValidPathEnd + 1;
-			while (checkDots < currentPathEndPosition) {
-			    if (*checkDots != '.') {
-				checkDots = NULL;
-				break;
-			    }
-			    checkDots++;
-			}
-		    }
-		    if (checkDots != NULL) {
-			int dotLen = currentPathEndPosition-lastValidPathEnd;
+		    int len = WinIsReserved(path);
 
+		    if (len > 0) {
 			/*
-			 * Path is just dots. We shouldn't really ever see a
-			 * path like that. However, to be nice we at least
-			 * don't mangle the path - we just add the dots as a
-			 * path segment and continue
+			 * Actually it does exist - COM1, etc.
 			 */
 
-			Tcl_DStringAppend(&dsNorm, (const char *)
-				(nativePath + Tcl_DStringLength(&ds)-dotLen),
-				dotLen);
-		    } else {
-			/*
-			 * Normal path.
-			 */
-
-			WIN32_FIND_DATAA fData;
-			HANDLE handle;
-
-			handle = FindFirstFileA(nativePath, &fData);
-			if (handle == INVALID_HANDLE_VALUE) {
-			    if (GetFileAttributesA(nativePath)
-				    == INVALID_FILE_ATTRIBUTES) {
-				/*
-				 * File doesn't exist.
-				 */
+			int i;
 
-				Tcl_DStringFree(&ds);
-				break;
-			    }
-
-			    /*
-			     * This is usually the '/' in 'c:/' at end of
-			     * string.
-			     */
+			for (i=0 ; i<len ; i++) {
+			    WCHAR wc = ((WCHAR *) nativePath)[i];
 
-			    TclDStringAppendLiteral(&dsNorm, "/");
-			} else {
-			    char *nativeName;
-
-			    if (fData.cFileName[0] != '\0') {
-				nativeName = fData.cFileName;
-			    } else {
-				nativeName = fData.cAlternateFileName;
+			    if (wc >= L'a') {
+				wc -= (L'a' - L'A');
+				((WCHAR *) nativePath)[i] = wc;
 			    }
-			    FindClose(handle);
-			    TclDStringAppendLiteral(&dsNorm, "/");
-			    Tcl_DStringAppend(&dsNorm, nativeName, -1);
 			}
+			Tcl_DStringAppend(&dsNorm,
+				(const char *)nativePath,
+				(int)(sizeof(WCHAR) * len));
+			lastValidPathEnd = currentPathEndPosition;
+		    } else if (nextCheckpoint == 0) {
+			/* Path starts with a drive designation
+			 * that's not actually on the system.
+			 * We still must normalize up past the
+			 * first separator.  [Bug 3603434] */
+			currentPathEndPosition++;
 		    }
 		}
 		Tcl_DStringFree(&ds);
-		lastValidPathEnd = currentPathEndPosition;
-		if (cur == 0) {
-		    break;
-		}
-
-		/*
-		 * If we get here, we've got past one directory delimiter, so
-		 * we know it is no longer a drive.
-		 */
-
-		isDrive = 0;
+		break;
 	    }
-	    currentPathEndPosition++;
-	}
-    } else {
-	/*
-	 * We're on WinNT (or 2000 or XP; something with an NT core).
-	 */
 
-	currentPathEndPosition = path + nextCheckpoint;
-	if (*currentPathEndPosition == '/') {
-	    currentPathEndPosition++;
-	}
-	while (1) {
-	    char cur = *currentPathEndPosition;
+	    /*
+	     * File 'nativePath' does exist if we get here. We now want to
+	     * check if it is a symlink and otherwise continue with the
+	     * rest of the path.
+	     */
 
-	    if ((cur=='/' || cur==0) && (path != currentPathEndPosition)) {
-		/*
-		 * Reached directory separator, or end of string.
-		 */
+	    /*
+	     * Check for symlinks, except at last component of path (we
+	     * don't follow final symlinks). Also a drive (C:/) for
+	     * example, may sometimes have the reparse flag set for some
+	     * reason I don't understand. We therefore don't perform this
+	     * check for drives.
+	     */
 
-		WIN32_FILE_ATTRIBUTE_DATA data;
-		const TCHAR *nativePath = Tcl_WinUtfToTChar(path,
-			currentPathEndPosition - path, &ds);
+	    if (cur != 0 && !isDrive &&
+		    data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT){
+		Tcl_Obj *to = WinReadLinkDirectory(nativePath);
 
-		if (GetFileAttributesEx(nativePath,
-			GetFileExInfoStandard, &data) != TRUE) {
+		if (to != NULL) {
 		    /*
-		     * File doesn't exist.
+		     * Read the reparse point ok. Now, reparse points need
+		     * not be normalized, otherwise we could use:
+		     *
+		     * Tcl_GetStringFromObj(to, &pathLen);
+		     * nextCheckpoint = pathLen;
+		     *
+		     * So, instead we have to start from the beginning.
 		     */
 
-		    if (isDrive) {
-			int len = WinIsReserved(path);
-
-			if (len > 0) {
-			    /*
-			     * Actually it does exist - COM1, etc.
-			     */
+		    nextCheckpoint = 0;
+		    Tcl_AppendToObj(to, currentPathEndPosition, -1);
 
-			    int i;
-
-			    for (i=0 ; i<len ; i++) {
-				WCHAR wc = ((WCHAR *) nativePath)[i];
+		    /*
+		     * Convert link to forward slashes.
+		     */
 
-				if (wc >= L'a') {
-				    wc -= (L'a' - L'A');
-				    ((WCHAR *) nativePath)[i] = wc;
-				}
-			    }
-			    Tcl_DStringAppend(&dsNorm,
-				    (const char *)nativePath,
-				    (int)(sizeof(WCHAR) * len));
-			    lastValidPathEnd = currentPathEndPosition;
+		    for (path = Tcl_GetString(to); *path != 0; path++) {
+			if (*path == '\\') {
+			    *path = '/';
 			}
 		    }
-		    Tcl_DStringFree(&ds);
-		    break;
-		}
-
-		/*
-		 * File 'nativePath' does exist if we get here. We now want to
-		 * check if it is a symlink and otherwise continue with the
-		 * rest of the path.
-		 */
-
-		/*
-		 * Check for symlinks, except at last component of path (we
-		 * don't follow final symlinks). Also a drive (C:/) for
-		 * example, may sometimes have the reparse flag set for some
-		 * reason I don't understand. We therefore don't perform this
-		 * check for drives.
-		 */
+		    path = Tcl_GetString(to);
+		    currentPathEndPosition = path + nextCheckpoint;
+		    if (temp != NULL) {
+			Tcl_DecrRefCount(temp);
+		    }
+		    temp = to;
 
-		if (cur != 0 && !isDrive &&
-			data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT){
-		    Tcl_Obj *to = WinReadLinkDirectory(nativePath);
+		    /*
+		     * Reset variables so we can restart normalization.
+		     */
 
-		    if (to != NULL) {
-			/*
-			 * Read the reparse point ok. Now, reparse points need
-			 * not be normalized, otherwise we could use:
-			 *
-			 * Tcl_GetStringFromObj(to, &pathLen);
-			 * nextCheckpoint = pathLen;
-			 *
-			 * So, instead we have to start from the beginning.
-			 */
+		    isDrive = 1;
+		    Tcl_DStringFree(&dsNorm);
+		    Tcl_DStringFree(&ds);
+		    continue;
+		}
+	    }
 
-			nextCheckpoint = 0;
-			Tcl_AppendToObj(to, currentPathEndPosition, -1);
+#ifndef TclNORM_LONG_PATH
+	    /*
+	     * Now we convert the tail of the current path to its 'long
+	     * form', and append it to 'dsNorm' which holds the current
+	     * normalized path
+	     */
 
-			/*
-			 * Convert link to forward slashes.
-			 */
+	    if (isDrive) {
+		WCHAR drive = ((WCHAR *) nativePath)[0];
 
-			for (path = Tcl_GetString(to); *path != 0; path++) {
-			    if (*path == '\\') {
-				*path = '/';
-			    }
-			}
-			path = Tcl_GetString(to);
-			currentPathEndPosition = path + nextCheckpoint;
-			if (temp != NULL) {
-			    Tcl_DecrRefCount(temp);
+		if (drive >= L'a') {
+		    drive -= (L'a' - L'A');
+		    ((WCHAR *) nativePath)[0] = drive;
+		}
+		Tcl_DStringAppend(&dsNorm, (const char *)nativePath,
+			Tcl_DStringLength(&ds));
+	    } else {
+		char *checkDots = NULL;
+
+		if (lastValidPathEnd[1] == '.') {
+		    checkDots = lastValidPathEnd + 1;
+		    while (checkDots < currentPathEndPosition) {
+			if (*checkDots != '.') {
+			    checkDots = NULL;
+			    break;
 			}
-			temp = to;
-
-			/*
-			 * Reset variables so we can restart normalization.
-			 */
-
-			isDrive = 1;
-			Tcl_DStringFree(&dsNorm);
-			Tcl_DStringFree(&ds);
-			continue;
+			checkDots++;
 		    }
 		}
+		if (checkDots != NULL) {
+		    int dotLen = currentPathEndPosition-lastValidPathEnd;
 
-#ifndef TclNORM_LONG_PATH
-		/*
-		 * Now we convert the tail of the current path to its 'long
-		 * form', and append it to 'dsNorm' which holds the current
-		 * normalized path
-		 */
-
-		if (isDrive) {
-		    WCHAR drive = ((WCHAR *) nativePath)[0];
+		    /*
+		     * Path is just dots. We shouldn't really ever see a
+		     * path like that. However, to be nice we at least
+		     * don't mangle the path - we just add the dots as a
+		     * path segment and continue.
+		     */
 
-		    if (drive >= L'a') {
-			drive -= (L'a' - L'A');
-			((WCHAR *) nativePath)[0] = drive;
-		    }
-		    Tcl_DStringAppend(&dsNorm, (const char *)nativePath,
-			    Tcl_DStringLength(&ds));
+		    Tcl_DStringAppend(&dsNorm, ((const char *)nativePath)
+			    + Tcl_DStringLength(&ds)
+			    - (dotLen * sizeof(TCHAR)),
+			    (int)(dotLen * sizeof(TCHAR)));
 		} else {
-		    char *checkDots = NULL;
-
-		    if (lastValidPathEnd[1] == '.') {
-			checkDots = lastValidPathEnd + 1;
-			while (checkDots < currentPathEndPosition) {
-			    if (*checkDots != '.') {
-				checkDots = NULL;
-				break;
-			    }
-			    checkDots++;
-			}
-		    }
-		    if (checkDots != NULL) {
-			int dotLen = currentPathEndPosition-lastValidPathEnd;
+		    /*
+		     * Normal path.
+		     */
 
-			/*
-			 * Path is just dots. We shouldn't really ever see a
-			 * path like that. However, to be nice we at least
-			 * don't mangle the path - we just add the dots as a
-			 * path segment and continue.
-			 */
+		    WIN32_FIND_DATAW fData;
+		    HANDLE handle;
 
-			Tcl_DStringAppend(&dsNorm, ((const char *)nativePath)
-				+ Tcl_DStringLength(&ds)
-				- (dotLen * sizeof(TCHAR)),
-				(int)(dotLen * sizeof(TCHAR)));
-		    } else {
+		    handle = FindFirstFileW((WCHAR *) nativePath, &fData);
+		    if (handle == INVALID_HANDLE_VALUE) {
 			/*
-			 * Normal path.
+			 * This is usually the '/' in 'c:/' at end of
+			 * string.
 			 */
 
-			WIN32_FIND_DATAW fData;
-			HANDLE handle;
-
-			handle = FindFirstFileW((WCHAR *) nativePath, &fData);
-			if (handle == INVALID_HANDLE_VALUE) {
-			    /*
-			     * This is usually the '/' in 'c:/' at end of
-			     * string.
-			     */
+			Tcl_DStringAppend(&dsNorm, (const char *) L"/",
+				sizeof(WCHAR));
+		    } else {
+			WCHAR *nativeName;
 
-			    Tcl_DStringAppend(&dsNorm, (const char *) L"/",
-				    sizeof(WCHAR));
+			if (fData.cFileName[0] != '\0') {
+			    nativeName = fData.cFileName;
 			} else {
-			    WCHAR *nativeName;
-
-			    if (fData.cFileName[0] != '\0') {
-				nativeName = fData.cFileName;
-			    } else {
-				nativeName = fData.cAlternateFileName;
-			    }
-			    FindClose(handle);
-			    Tcl_DStringAppend(&dsNorm, (const char *) L"/",
-				    sizeof(WCHAR));
-			    Tcl_DStringAppend(&dsNorm,
-				    (const char *) nativeName,
-				    (int) (wcslen(nativeName)*sizeof(WCHAR)));
+			    nativeName = fData.cAlternateFileName;
 			}
+			FindClose(handle);
+			Tcl_DStringAppend(&dsNorm, (const char *) L"/",
+				sizeof(WCHAR));
+			Tcl_DStringAppend(&dsNorm,
+				(const char *) nativeName,
+				(int) (wcslen(nativeName)*sizeof(WCHAR)));
 		    }
 		}
+	    }
 #endif /* !TclNORM_LONG_PATH */
-		Tcl_DStringFree(&ds);
-		lastValidPathEnd = currentPathEndPosition;
-		if (cur == 0) {
-		    break;
-		}
+	    Tcl_DStringFree(&ds);
+	    lastValidPathEnd = currentPathEndPosition;
+	    if (cur == 0) {
+		break;
+	    }
 
-		/*
-		 * If we get here, we've got past one directory delimiter, so
-		 * we know it is no longer a drive.
-		 */
+	    /*
+	     * If we get here, we've got past one directory delimiter, so
+	     * we know it is no longer a drive.
+	     */
 
-		isDrive = 0;
-	    }
-	    currentPathEndPosition++;
+	    isDrive = 0;
 	}
+	currentPathEndPosition++;
 
 #ifdef TclNORM_LONG_PATH
 	/*
@@ -3045,10 +2897,11 @@ ClientData
 TclNativeCreateNativeRep(
     Tcl_Obj *pathPtr)
 {
-    char *nativePathPtr, *str;
-    Tcl_DString ds;
+    WCHAR *nativePathPtr;
+    const char *str;
     Tcl_Obj *validPathPtr;
-    int len;
+    size_t len;
+    WCHAR *wp;
 
     if (TclFSCwdIsNative()) {
 	/*
@@ -3073,23 +2926,77 @@ TclNativeCreateNativeRep(
 	Tcl_IncrRefCount(validPathPtr);
     }
 
-    str = Tcl_GetStringFromObj(validPathPtr, &len);
-    if (str[0] == '/' && str[1] == '/' && str[2] == '?' && str[3] == '/') {
-	char *p;
+    str = Tcl_GetString(validPathPtr);
+    len = validPathPtr->length;
 
-	for (p = str; p && *p; ++p) {
-	    if (*p == '/') {
-		*p = '\\';
-	    }
+    if (strlen(str)!=(unsigned int)len) {
+	/* String contains NUL-bytes. This is invalid. */
+	return 0;
+    }
+    /* For a reserved device, strip a possible postfix ':' */
+    len = WinIsReserved(str);
+    if (len == 0) {
+	/* Let MultiByteToWideChar check for other invalid sequences, like
+	 * 0xC0 0x80 (== overlong NUL). See bug [3118489]: NUL in filenames */
+	len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str, -1, 0, 0);
+	if (len==0) {
+	    return 0;
 	}
     }
-    Tcl_WinUtfToTChar(str, len, &ds);
-    len = Tcl_DStringLength(&ds) + sizeof(WCHAR);
-    Tcl_DecrRefCount(validPathPtr);
-    nativePathPtr = ckalloc(len);
-    memcpy(nativePathPtr, Tcl_DStringValue(&ds), (size_t) len);
-
-    Tcl_DStringFree(&ds);
+    /* Overallocate 6 chars, making some room for extended paths */
+    wp = nativePathPtr = ckalloc( (len+6) * sizeof(WCHAR) );
+    if (nativePathPtr==0) {
+      return 0;
+    }
+    MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str, -1, nativePathPtr, len+1);
+    /*
+    ** If path starts with "//?/" or "\\?\" (extended path), translate
+    ** any slashes to backslashes but leave the '?' intact
+    */
+    if ((str[0]=='\\' || str[0]=='/') && (str[1]=='\\' || str[1]=='/')
+	    && str[2]=='?' && (str[3]=='\\' || str[3]=='/')) {
+	wp[0] = wp[1] = wp[3] = '\\';
+	str += 4;
+	wp += 4;
+    }
+    /*
+    ** If there is no "\\?\" prefix but there is a drive or UNC
+    ** path prefix and the path is larger than MAX_PATH chars,
+    ** no Win32 API function can handle that unless it is
+    ** prefixed with the extended path prefix. See:
+    ** <http://msdn.microsoft.com/en-us/library/aa365247(VS.85).aspx#maxpath>
+    **/
+    if (((str[0]>='A'&&str[0]<='Z') || (str[0]>='a'&&str[0]<='z'))
+	    && str[1]==':') {
+	if (wp==nativePathPtr && len>MAX_PATH && (str[2]=='\\' || str[2]=='/')) {
+	    memmove(wp+4, wp, len*sizeof(WCHAR));
+	    memcpy(wp, L"\\\\?\\", 4*sizeof(WCHAR));
+	    wp += 4;
+	}
+	/*
+	 ** If (remainder of) path starts with "<drive>:",
+	 ** leave the ':' intact.
+	 */
+	wp += 2;
+    } else if (wp==nativePathPtr && len>MAX_PATH
+	    && (str[0]=='\\' || str[0]=='/')
+	    && (str[1]=='\\' || str[1]=='/') && str[2]!='?') {
+	memmove(wp+6, wp, len*sizeof(WCHAR));
+	memcpy(wp, L"\\\\?\\UNC", 7*sizeof(WCHAR));
+	wp += 7;
+    }
+    /*
+    ** In the remainder of the path, translate invalid characters to
+    ** characters in the Unicode private use area.
+    */
+    while (*wp != '\0') {
+	if ((*wp < ' ') || wcschr(L"\"*:<>?|", *wp)) {
+	    *wp |= 0xF000;
+	} else if (*wp == '/') {
+	    *wp = '\\';
+	}
+	++wp;
+    }
     return nativePathPtr;
 }
 
diff --git a/win/tclWinInit.c b/win/tclWinInit.c
index d89c98e..8b600f6 100644
--- a/win/tclWinInit.c
+++ b/win/tclWinInit.c
@@ -101,6 +101,10 @@ static TclInitProcessGlobalValueProc	InitializeDefaultLibraryDir;
 static ProcessGlobalValue defaultLibraryDir =
 	{0, 0, NULL, NULL, InitializeDefaultLibraryDir, NULL, NULL};
 
+static TclInitProcessGlobalValueProc	InitializeSourceLibraryDir;
+static ProcessGlobalValue sourceLibraryDir =
+	{0, 0, NULL, NULL, InitializeSourceLibraryDir, NULL, NULL};
+
 static void		AppendEnvironment(Tcl_Obj *listPtr, const char *lib);
 static int		ToUtf(const WCHAR *wSrc, char *dst);
 
@@ -109,8 +113,8 @@ static int		ToUtf(const WCHAR *wSrc, char *dst);
  *
  * TclpInitPlatform --
  *
- *	Initialize all the platform-dependant things like signals and
- *	floating-point error handling.
+ *	Initialize all the platform-dependant things like signals,
+ *	floating-point error handling and sockets.
  *
  *	Called at process initialization time.
  *
@@ -126,20 +130,16 @@ static int		ToUtf(const WCHAR *wSrc, char *dst);
 void
 TclpInitPlatform(void)
 {
+    WSADATA wsaData;
+    WORD wVersionRequested = MAKEWORD(2, 2);
+
     tclPlatform = TCL_PLATFORM_WINDOWS;
 
     /*
-     * The following code stops Windows 3.X and Windows NT 3.51 from
-     * automatically putting up Sharing Violation dialogs, e.g, when someone
-     * tries to access a file that is locked or a drive with no disk in it.
-     * Tcl already returns the appropriate error to the caller, and they can
-     * decide to put up their own dialog in response to that failure.
-     *
-     * Under 95 and NT 4.0, this is a NOOP because the system doesn't
-     * automatically put up dialogs when the above operations fail.
+     * Initialize the winsock library. On Windows XP and higher this
+     * can never fail.
      */
-
-    SetErrorMode(SetErrorMode(0) | SEM_FAILCRITICALERRORS);
+    WSAStartup(wVersionRequested, &wsaData);
 
 #ifdef STATIC_BUILD
     /*
@@ -175,7 +175,7 @@ TclpInitLibraryPath(
     int *lengthPtr,
     Tcl_Encoding *encodingPtr)
 {
-#define LIBRARY_SIZE	    32
+#define LIBRARY_SIZE	    64
     Tcl_Obj *pathPtr;
     char installLib[LIBRARY_SIZE];
     const char *bytes;
@@ -206,6 +206,13 @@ TclpInitLibraryPath(
     Tcl_ListObjAppendElement(NULL, pathPtr,
 	    TclGetProcessGlobalValue(&defaultLibraryDir));
 
+    /*
+     * Look for the library in its source checkout location.
+     */
+
+    Tcl_ListObjAppendElement(NULL, pathPtr,
+	    TclGetProcessGlobalValue(&sourceLibraryDir));
+
     *encodingPtr = NULL;
     bytes = Tcl_GetStringFromObj(pathPtr, lengthPtr);
     *valuePtr = ckalloc((*lengthPtr) + 1);
@@ -360,6 +367,57 @@ InitializeDefaultLibraryDir(
 /*
  *---------------------------------------------------------------------------
  *
+ * InitializeSourceLibraryDir --
+ *
+ *	Locate the Tcl script library default location relative to the
+ *	location of the Tcl DLL as it exists in the build output directory
+ *	associated with the source checkout.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *---------------------------------------------------------------------------
+ */
+
+static void
+InitializeSourceLibraryDir(
+    char **valuePtr,
+    int *lengthPtr,
+    Tcl_Encoding *encodingPtr)
+{
+    HMODULE hModule = TclWinGetTclInstance();
+    WCHAR wName[MAX_PATH + LIBRARY_SIZE];
+    char name[(MAX_PATH + LIBRARY_SIZE) * TCL_UTF_MAX];
+    char *end, *p;
+
+    if (GetModuleFileNameW(hModule, wName, MAX_PATH) == 0) {
+	GetModuleFileNameA(hModule, name, MAX_PATH);
+    } else {
+	ToUtf(wName, name);
+    }
+
+    end = strrchr(name, '\\');
+    *end = '\0';
+    p = strrchr(name, '\\');
+    if (p != NULL) {
+	end = p;
+    }
+    *end = '\\';
+
+    TclWinNoBackslash(name);
+    sprintf(end + 1, "../library");
+    *lengthPtr = strlen(name);
+    *valuePtr = ckalloc(*lengthPtr + 1);
+    *encodingPtr = NULL;
+    memcpy(*valuePtr, name, (size_t) *lengthPtr + 1);
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
  * ToUtf --
  *
  *	Convert a char string to a UTF string.
@@ -424,13 +482,10 @@ TclpSetInitialEncodings(void)
     Tcl_DStringFree(&encodingName);
 }
 
-void
-TclpSetInterfaces(void)
+void TclWinSetInterfaces(
+    int dummy)			/* Not used. */
 {
-    int useWide;
-
-    useWide = (TclWinGetPlatformId() != VER_PLATFORM_WIN32_WINDOWS);
-    TclWinSetInterfaces(useWide);
+    TclpSetInterfaces();
 }
 
 const char *
@@ -471,7 +526,8 @@ TclpSetVariables(
 	SYSTEM_INFO info;
 	OemId oemId;
     } sys;
-    OSVERSIONINFOA osInfo;
+    static OSVERSIONINFOW osInfo;
+    static int osInfoInitialized = 0;
     Tcl_DString ds;
     TCHAR szUserName[UNLEN+1];
     DWORD cchUserNameLen = UNLEN;
@@ -479,9 +535,19 @@ TclpSetVariables(
     Tcl_SetVar2Ex(interp, "tclDefaultLibrary", NULL,
 	    TclGetProcessGlobalValue(&defaultLibraryDir), TCL_GLOBAL_ONLY);
 
-    osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA);
-    GetVersionExA(&osInfo);
-
+    if (!osInfoInitialized) {
+	HANDLE handle = LoadLibraryW(L"NTDLL");
+	int(__stdcall *getversion)(void *) =
+		(int(__stdcall *)(void *)) GetProcAddress(handle, "RtlGetVersion");
+	osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
+	if (!getversion || getversion(&osInfo)) {
+	    GetVersionExW(&osInfo);
+	}
+	if (handle) {
+		FreeLibrary(handle);
+	}
+	osInfoInitialized = 1;
+    }
     GetSystemInfo(&sys.info);
 
     /*
diff --git a/win/tclWinInt.h b/win/tclWinInt.h
index 22ad8e9..9df424f 100644
--- a/win/tclWinInt.h
+++ b/win/tclWinInt.h
@@ -14,6 +14,23 @@
 
 #include "tclInt.h"
 
+#ifdef HAVE_NO_SEH
+/*
+ * Unlike Borland and Microsoft, we don't register exception handlers by
+ * pushing registration records onto the runtime stack. Instead, we register
+ * them by creating an TCLEXCEPTION_REGISTRATION within the activation record.
+ */
+
+typedef struct TCLEXCEPTION_REGISTRATION {
+    struct TCLEXCEPTION_REGISTRATION *link;
+    EXCEPTION_DISPOSITION (*handler)(
+	    struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
+    void *ebp;
+    void *esp;
+    int status;
+} TCLEXCEPTION_REGISTRATION;
+#endif
+
 /*
  * Some versions of Borland C have a define for the OSVERSIONINFO for
  * Win32s and for NT, but not for Windows 95.
@@ -33,12 +50,6 @@
 #         define TCL_I_MODIFIER        ""
 #endif
 
-#ifdef _WIN64
-#         define TCL_I_MODIFIER        "I"
-#else
-#         define TCL_I_MODIFIER        ""
-#endif
-
 /*
  * Declarations of functions that are not accessible by way of the
  * stubs table.
@@ -55,7 +66,7 @@ MODULE_SCOPE Tcl_Channel TclWinOpenFileChannel(HANDLE handle, char *channelName,
 			    int permissions, int appendMode);
 MODULE_SCOPE Tcl_Channel TclWinOpenSerialChannel(HANDLE handle,
 			    char *channelName, int permissions);
-MODULE_SCOPE HANDLE	TclWinSerialReopen(HANDLE handle, const TCHAR *name,
+MODULE_SCOPE HANDLE	TclWinSerialOpen(HANDLE handle, const TCHAR *name,
 			    DWORD access);
 MODULE_SCOPE int	TclWinSymLinkCopyDirectory(const TCHAR *LinkOriginal,
 			    const TCHAR *LinkCopy);
diff --git a/win/tclWinLoad.c b/win/tclWinLoad.c
index 6294086..3e11224 100644
--- a/win/tclWinLoad.c
+++ b/win/tclWinLoad.c
@@ -57,10 +57,11 @@ TclpDlopen(
     Tcl_LoadHandle *loadHandle,	/* Filled with token for dynamically loaded
 				 * file which will be passed back to
 				 * (*unloadProcPtr)() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr)
+    Tcl_FSUnloadFileProc **unloadProcPtr,
 				/* Filled with address of Tcl_FSUnloadFileProc
 				 * function which should be used for this
 				 * file. */
+    int flags)
 {
     HINSTANCE hInstance;
     const TCHAR *nativeName;
diff --git a/win/tclWinPipe.c b/win/tclWinPipe.c
index 36ae58a..a9eec6d 100644
--- a/win/tclWinPipe.c
+++ b/win/tclWinPipe.c
@@ -12,8 +12,6 @@
 
 #include "tclWinInt.h"
 
-#include <sys/stat.h>
-
 /*
  * The following variable is used to tell whether this module has been
  * initialized.
@@ -84,6 +82,12 @@ static ProcInfo *procList;
 #define PIPE_EXTRABYTE	(1<<3)	/* The reader thread has consumed one byte. */
 
 /*
+ * TODO: It appears the whole EXTRABYTE machinery is in place to support
+ * outdated Win 95 systems.  If this can be confirmed, much code can be
+ * deleted.
+ */
+
+/*
  * This structure describes per-instance data for a pipe based channel.
  */
 
@@ -1051,15 +1055,8 @@ TclpCreateProcess(
 	 * sink.
 	 */
 
-	if ((TclWinGetPlatformId() == VER_PLATFORM_WIN32_WINDOWS)
-		&& (applType == APPL_DOS)) {
-	    if (CreatePipe(&h, &startInfo.hStdOutput, &secAtts, 0) != FALSE) {
-		CloseHandle(h);
-	    }
-	} else {
-	    startInfo.hStdOutput = CreateFileA("NUL:", GENERIC_WRITE, 0,
-		    &secAtts, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
-	}
+	startInfo.hStdOutput = CreateFile(TEXT("NUL:"), GENERIC_WRITE, 0,
+		&secAtts, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
     } else {
 	DuplicateHandle(hProcess, outputHandle, hProcess,
 		&startInfo.hStdOutput, 0, TRUE, DUPLICATE_SAME_ACCESS);
@@ -1078,7 +1075,7 @@ TclpCreateProcess(
 	 * sink.
 	 */
 
-	startInfo.hStdError = CreateFileA("NUL:", GENERIC_WRITE, 0,
+	startInfo.hStdError = CreateFile(TEXT("NUL:"), GENERIC_WRITE, 0,
 		&secAtts, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
     } else {
 	DuplicateHandle(hProcess, errorHandle, hProcess, &startInfo.hStdError,
@@ -1893,7 +1890,7 @@ PipeClose2Proc(
 		SetEvent(pipePtr->stopWriter);
 
 		if (WaitForSingleObject(pipePtr->writable, 0) == WAIT_TIMEOUT) {
-		    return EAGAIN;
+		    return EWOULDBLOCK;
 		}
 
 	    } else {
@@ -2170,7 +2167,7 @@ PipeOutputProc(
 	 * the channel is in non-blocking mode.
 	 */
 
-	errno = EAGAIN;
+	errno = EWOULDBLOCK;
 	goto error;
     }
 
@@ -2721,7 +2718,7 @@ WaitForRead(
 	     * is in non-blocking mode.
 	     */
 
-	    errno = EAGAIN;
+	    errno = EWOULDBLOCK;
 	    return -1;
 	}
 
diff --git a/win/tclWinPort.h b/win/tclWinPort.h
index 48f7894..ca6b2bf 100644
--- a/win/tclWinPort.h
+++ b/win/tclWinPort.h
@@ -82,6 +82,7 @@ typedef DWORD_PTR * PDWORD_PTR;
  *---------------------------------------------------------------------------
  */
 
+#include <time.h>
 #include <wchar.h>
 #include <io.h>
 #include <errno.h>
@@ -92,11 +93,9 @@ typedef DWORD_PTR * PDWORD_PTR;
 #include <signal.h>
 #include <limits.h>
 
-#ifndef strncasecmp
-#   define strncasecmp strnicmp
-#endif
-#ifndef strcasecmp
-#   define strcasecmp stricmp
+#ifndef __GNUC__
+#    define strncasecmp _strnicmp
+#    define strcasecmp _stricmp
 #endif
 
 /*
@@ -114,8 +113,6 @@ typedef DWORD_PTR * PDWORD_PTR;
 #   endif /* __BORLANDC__ */
 #endif /* __MWERKS__ */
 
-#include <time.h>
-
 /*
  * The following defines redefine the Windows Socket errors as
  * BSD errors so Tcl_PosixError can do the right thing.
@@ -436,17 +433,17 @@ typedef DWORD_PTR * PDWORD_PTR;
  * EDEADLK as the same value, which confuses Tcl_ErrnoId().
  */
 
-#if defined(_MSC_VER) || defined(__MINGW32__)
+#if defined(_MSC_VER) || defined(__MSVCRT__)
 #   define environ _environ
 #   if defined(_MSC_VER) && (_MSC_VER < 1600)
 #	define hypot _hypot
 #   endif
 #   define exception _exception
 #   undef EDEADLOCK
-#   if defined(__MINGW32__) && !defined(__MSVCRT__)
+#   if defined(_MSC_VER) && (_MSC_VER >= 1700)
 #	define timezone _timezone
 #   endif
-#endif /* _MSC_VER || __MINGW32__ */
+#endif /* _MSC_VER || __MSVCRT__ */
 
 /*
  * Borland's timezone and environ functions.
@@ -469,11 +466,12 @@ typedef DWORD_PTR * PDWORD_PTR;
  * including the *printf family and others. Tell it to shut up.
  * (_MSC_VER is 1200 for VC6, 1300 or 1310 for vc7.net, 1400 for 8.0)
  */
-#if _MSC_VER >= 1400
-#pragma warning(disable:4996)
+#if defined(_MSC_VER) && (_MSC_VER >= 1400)
+#   pragma warning(disable:4244)
+#   pragma warning(disable:4267)
+#   pragma warning(disable:4996)
 #endif
 
-
 /*
  *---------------------------------------------------------------------------
  * The following macros and declarations represent the interface between
@@ -507,7 +505,7 @@ typedef DWORD_PTR * PDWORD_PTR;
  * Msvcrt's putenv() copies the string rather than takes ownership of it.
  */
 
-#if defined(_MSC_VER) || defined(__MINGW32__)
+#if defined(_MSC_VER) || defined(__MSVCRT__)
 #   define HAVE_PUTENV_THAT_COPIES 1
 #endif
 
@@ -530,15 +528,6 @@ typedef DWORD_PTR * PDWORD_PTR;
 #define TclpSysRealloc(ptr, size)	((void*)HeapReAlloc(GetProcessHeap(), \
 					    (DWORD)0, (LPVOID)ptr, (DWORD)size))
 
-/*
- * The following defines map from standard socket names to our internal
- * wrappers that redirect through the winSock function table (see the
- * file tclWinSock.c).
- */
-
-#define getservbyname	TclWinGetServByName
-#define getsockopt	TclWinGetSockOpt
-#define setsockopt	TclWinSetSockOpt
 /* This type is not defined in the Windows headers */
 #define socklen_t       int
 
diff --git a/win/tclWinReg.c b/win/tclWinReg.c
index 6ac5caf..327e4a3 100644
--- a/win/tclWinReg.c
+++ b/win/tclWinReg.c
@@ -13,9 +13,9 @@
  */
 
 #undef STATIC_BUILD
-#undef USE_TCL_STUBS
-#define USE_TCL_STUBS
-
+#ifndef USE_TCL_STUBS
+#   define USE_TCL_STUBS
+#endif
 #include "tclInt.h"
 #ifdef _MSC_VER
 #   pragma comment (lib, "advapi32.lib")
diff --git a/win/tclWinSerial.c b/win/tclWinSerial.c
index 9e9d1af..0730a46 100644
--- a/win/tclWinSerial.c
+++ b/win/tclWinSerial.c
@@ -14,8 +14,6 @@
 
 #include "tclWinInt.h"
 
-#include <sys/stat.h>
-
 /*
  * The following variable is used to tell whether this module has been
  * initialized.
@@ -376,7 +374,7 @@ SerialGetMilliseconds(void)
 {
     Tcl_Time time;
 
-    TclpGetTime(&time);
+    Tcl_GetTime(&time);
 
     return (time.sec * 1000 + time.usec / 1000);
 }
@@ -934,7 +932,7 @@ SerialInputProc(
 		    bufSize = cStat.cbInQue;
 		}
 	    } else {
-		errno = *errorCode = EAGAIN;
+		errno = *errorCode = EWOULDBLOCK;
 		return -1;
 	    }
 	} else {
@@ -1036,7 +1034,7 @@ SerialOutputProc(
 	 * the channel is in non-blocking mode.
 	 */
 
-	errno = EAGAIN;
+	errno = EWOULDBLOCK;
 	goto error1;
     }
 
@@ -1412,23 +1410,22 @@ SerialWriterThread(
 /*
  *----------------------------------------------------------------------
  *
- * TclWinSerialReopen --
+ * TclWinSerialOpen --
  *
- *	Reopens the serial port with the OVERLAPPED FLAG set
+ *	Opens or Reopens the serial port with the OVERLAPPED FLAG set
  *
  * Results:
- *	Returns the new handle, or INVALID_HANDLE_VALUE. Normally there
- *	shouldn't be any error, because the same channel has previously been
- *	succeesfully opened.
+ *	Returns the new handle, or INVALID_HANDLE_VALUE.
+ *	If an existing channel is specified it is closed and reopened.
  *
  * Side effects:
- *	May close the original handle
+ *	May close/reopen the original handle
  *
  *----------------------------------------------------------------------
  */
 
 HANDLE
-TclWinSerialReopen(
+TclWinSerialOpen(
     HANDLE handle,
     const TCHAR *name,
     DWORD access)
@@ -1436,16 +1433,22 @@ TclWinSerialReopen(
     SerialInit();
 
     /*
+     * If an open channel is specified, close it
+     */
+
+    if ( handle != INVALID_HANDLE_VALUE && CloseHandle(handle) == FALSE) {
+	return INVALID_HANDLE_VALUE;
+    }
+
+    /*
      * Multithreaded I/O needs the overlapped flag set otherwise
      * ClearCommError blocks under Windows NT/2000 until serial output is
      * finished
      */
 
-    if (CloseHandle(handle) == FALSE) {
-	return INVALID_HANDLE_VALUE;
-    }
     handle = CreateFile(name, access, 0, 0, OPEN_EXISTING,
 	    FILE_FLAG_OVERLAPPED, 0);
+
     return handle;
 }
 
diff --git a/win/tclWinSock.c b/win/tclWinSock.c
index 1a74354..a022ed5 100644
--- a/win/tclWinSock.c
+++ b/win/tclWinSock.c
@@ -9,6 +9,9 @@
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
  * -----------------------------------------------------------------------
+ * The order and naming of functions in this file should minimize
+ * the file diff to tclUnixSock.c.
+ * -----------------------------------------------------------------------
  *
  * General information on how this module works.
  *
@@ -47,13 +50,6 @@
 
 #include "tclWinInt.h"
 
-/*
- * Which version of the winsock API do we want?
- */
-
-#define WSA_VERSION_MAJOR	1
-#define WSA_VERSION_MINOR	1
-
 #ifdef _MSC_VER
 #   pragma comment (lib, "ws2_32")
 #endif
@@ -75,6 +71,19 @@
 #undef setsockopt
 
 /*
+ * Helper macros to make parts of this file clearer. The macros do exactly
+ * what they say on the tin. :-) They also only ever refer to their arguments
+ * once, and so can be used without regard to side effects.
+ */
+
+#define SET_BITS(var, bits)	((var) |= (bits))
+#define CLEAR_BITS(var, bits)	((var) &= ~(bits))
+
+/* "sock" + a pointer in hex + \0 */
+#define SOCK_CHAN_LENGTH        (4 + sizeof(void *) * 2 + 1)
+#define SOCK_TEMPLATE           "sock%p"
+
+/*
  * The following variable is used to tell whether this module has been
  * initialized.  If 1, initialization of sockets was successful, if -1 then
  * socket initialization failed (WSAStartup failed).
@@ -85,15 +94,6 @@ static const TCHAR classname[] = TEXT("TclSocket");
 TCL_DECLARE_MUTEX(socketMutex)
 
 /*
- * The following variable holds the network name of this host.
- */
-
-static TclInitProcessGlobalValueProc InitializeHostName;
-static ProcessGlobalValue hostName = {
-    0, 0, NULL, NULL, InitializeHostName, NULL, NULL
-};
-
-/*
  * The following defines declare the messages used on socket windows.
  */
 
@@ -119,20 +119,19 @@ typedef union {
 #define IN6_ARE_ADDR_EQUAL IN6_ADDR_EQUAL
 #endif
 
-typedef struct SocketInfo SocketInfo;
+/*
+ * This structure describes per-instance state of a tcp based channel.
+ */
+
+typedef struct TcpState TcpState;
 
 typedef struct TcpFdList {
-    SocketInfo *infoPtr;
+    TcpState *statePtr;
     SOCKET fd;
     struct TcpFdList *next;
 } TcpFdList;
 
-/*
- * The following structure is used to store the data associated with each
- * socket.
- */
-
-struct SocketInfo {
+struct TcpState {
     Tcl_Channel channel;	/* Channel associated with this socket. */
     struct TcpFdList *sockets;	/* Windows SOCKET handle. */
     int flags;			/* Bit field comprised of the flags described
@@ -140,24 +139,60 @@ struct SocketInfo {
     int watchEvents;		/* OR'ed combination of FD_READ, FD_WRITE,
 				 * FD_CLOSE, FD_ACCEPT and FD_CONNECT that
 				 * indicate which events are interesting. */
-    int readyEvents;		/* OR'ed combination of FD_READ, FD_WRITE,
+    volatile int readyEvents;	/* OR'ed combination of FD_READ, FD_WRITE,
 				 * FD_CLOSE, FD_ACCEPT and FD_CONNECT that
-				 * indicate which events have occurred. */
+				 * indicate which events have occurred.
+				 * Set by notifier thread, access must be
+				 * protected by semaphore */
     int selectEvents;		/* OR'ed combination of FD_READ, FD_WRITE,
 				 * FD_CLOSE, FD_ACCEPT and FD_CONNECT that
 				 * indicate which events are currently being
 				 * selected. */
-    int acceptEventCount;	/* Count of the current number of FD_ACCEPTs
-				 * that have arrived and not yet processed. */
+    volatile int acceptEventCount;
+				/* Count of the current number of FD_ACCEPTs
+				 * that have arrived and not yet processed.
+				 * Set by notifier thread, access must be
+				 * protected by semaphore */
     Tcl_TcpAcceptProc *acceptProc;
 				/* Proc to call on accept. */
     ClientData acceptProcData;	/* The data for the accept proc. */
-    int lastError;		/* Error code from last message. */
-    struct SocketInfo *nextPtr;	/* The next socket on the per-thread socket
+
+    /*
+     * Only needed for client sockets
+     */
+
+    struct addrinfo *addrlist;	/* Addresses to connect to. */
+    struct addrinfo *addr;	/* Iterator over addrlist. */
+    struct addrinfo *myaddrlist;/* Local address. */
+    struct addrinfo *myaddr;	/* Iterator over myaddrlist. */
+    int connectError;		/* Cache status of async socket. */
+    int cachedBlocking;         /* Cache blocking mode of async socket. */
+    volatile int notifierConnectError;
+				/* Async connect error set by notifier thread.
+				 * This error is still a windows error code.
+				 * Access must be protected by semaphore */
+    struct TcpState *nextPtr;	/* The next socket on the per-thread socket
 				 * list. */
 };
 
 /*
+ * These bits may be ORed together into the "flags" field of a TcpState
+ * structure.
+ */
+
+#define TCP_NONBLOCKING		(1<<0)	/* Socket with non-blocking I/O */
+#define TCP_ASYNC_CONNECT	(1<<1)	/* Async connect in progress. */
+#define SOCKET_EOF		(1<<2)	/* A zero read happened on the
+					 * socket. */
+#define SOCKET_PENDING		(1<<3)	/* A message has been sent for this
+					 * socket */
+#define TCP_ASYNC_PENDING	(1<<4)	/* TcpConnect was called to
+					 * process an async connect. This
+					 * flag indicates that reentry is
+					 * still pending */
+#define TCP_ASYNC_FAILED	(1<<5)	/* An async connect finally failed */
+
+/*
  * The following structure is what is added to the Tcl event queue when a
  * socket event occurs.
  */
@@ -166,8 +201,8 @@ typedef struct {
     Tcl_Event header;		/* Information that is standard for all
 				 * events. */
     SOCKET socket;		/* Socket descriptor that is ready. Used to
-				 * find the SocketInfo structure for the file
-				 * (can't point directly to the SocketInfo
+				 * find the TcpState structure for the file
+				 * (can't point directly to the TcpState
 				 * structure because it could go away while
 				 * the event is queued). */
 } SocketEvent;
@@ -178,17 +213,6 @@ typedef struct {
 
 #define TCP_BUFFER_SIZE 4096
 
-/*
- * The following macros may be used to set the flags field of a SocketInfo
- * structure.
- */
-
-#define SOCKET_ASYNC		(1<<0)	/* The socket is in blocking mode. */
-#define SOCKET_EOF		(1<<1)	/* A zero read happened on the
-					 * socket. */
-#define SOCKET_ASYNC_CONNECT	(1<<2)	/* This socket uses async connect. */
-#define SOCKET_PENDING		(1<<3)	/* A message has been sent for this
-					 * socket */
 
 typedef struct {
     HWND hwnd;			/* Handle to window for socket messages. */
@@ -199,7 +223,11 @@ typedef struct {
 				 * socketThread has been initialized and has
 				 * started. */
     HANDLE socketListLock;	/* Win32 Event to lock the socketList */
-    SocketInfo *socketList;	/* Every open socket in this thread has an
+    TcpState *pendingTcpState;
+				/* This socket is opened but not jet in the
+				 * list. This value is also checked by
+				 * the event structure. */
+    TcpState *socketList;	/* Every open socket in this thread has an
 				 * entry on this list. */
 } ThreadSpecificData;
 
@@ -207,21 +235,23 @@ static Tcl_ThreadDataKey dataKey;
 static WNDCLASS windowClass;
 
 /*
- * Static functions defined in this file.
+ * Static routines for this file:
  */
 
-static SocketInfo *	CreateSocket(Tcl_Interp *interp, int port,
-			    const char *host, int server, const char *myaddr,
-			    int myport, int async);
+static int		TcpConnect(Tcl_Interp *interp,
+			    TcpState *state);
 static void		InitSockets(void);
-static SocketInfo *	NewSocketInfo(SOCKET socket);
+static TcpState *	NewSocketInfo(SOCKET socket);
 static void		SocketExitHandler(ClientData clientData);
 static LRESULT CALLBACK	SocketProc(HWND hwnd, UINT message, WPARAM wParam,
 			    LPARAM lParam);
 static int		SocketsEnabled(void);
 static void		TcpAccept(TcpFdList *fds, SOCKET newSocket, address addr);
-static int		WaitForSocketEvent(SocketInfo *infoPtr, int events,
+static int		WaitForConnect(TcpState *statePtr, int *errorCodePtr);
+static int		WaitForSocketEvent(TcpState *statePtr, int events,
 			    int *errorCodePtr);
+static void		AddSocketInfoFd(TcpState *statePtr,  SOCKET socket);
+static int		FindFDInList(TcpState *statePtr, SOCKET socket);
 static DWORD WINAPI	SocketThread(LPVOID arg);
 static void		TcpThreadActionProc(ClientData instanceData,
 			    int action);
@@ -229,7 +259,7 @@ static void		TcpThreadActionProc(ClientData instanceData,
 static Tcl_EventCheckProc	SocketCheckProc;
 static Tcl_EventProc		SocketEventProc;
 static Tcl_EventSetupProc	SocketSetupProc;
-static Tcl_DriverBlockModeProc	TcpBlockProc;
+static Tcl_DriverBlockModeProc	TcpBlockModeProc;
 static Tcl_DriverCloseProc	TcpCloseProc;
 static Tcl_DriverClose2Proc	TcpClose2Proc;
 static Tcl_DriverSetOptionProc	TcpSetOptionProc;
@@ -241,227 +271,180 @@ static Tcl_DriverGetHandleProc	TcpGetHandleProc;
 
 /*
  * This structure describes the channel type structure for TCP socket
- * based IO.
+ * based IO:
  */
 
 static const Tcl_ChannelType tcpChannelType = {
-    "tcp",		    /* Type name. */
-    TCL_CHANNEL_VERSION_5,  /* v5 channel */
-    TcpCloseProc,	    /* Close proc. */
-    TcpInputProc,	    /* Input proc. */
-    TcpOutputProc,	    /* Output proc. */
-    NULL,		    /* Seek proc. */
-    TcpSetOptionProc,	    /* Set option proc. */
-    TcpGetOptionProc,	    /* Get option proc. */
-    TcpWatchProc,	    /* Set up notifier to watch this channel. */
-    TcpGetHandleProc,	    /* Get an OS handle from channel. */
-    TcpClose2Proc,	    /* Close2proc. */
-    TcpBlockProc,	    /* Set socket into (non-)blocking mode. */
-    NULL,		    /* flush proc. */
-    NULL,		    /* handler proc. */
-    NULL,		    /* wide seek proc */
-    TcpThreadActionProc,    /* thread action proc */
-    NULL		    /* truncate */
+    "tcp",			/* Type name. */
+    TCL_CHANNEL_VERSION_5,	/* v5 channel */
+    TcpCloseProc,		/* Close proc. */
+    TcpInputProc,		/* Input proc. */
+    TcpOutputProc,		/* Output proc. */
+    NULL,			/* Seek proc. */
+    TcpSetOptionProc,		/* Set option proc. */
+    TcpGetOptionProc,		/* Get option proc. */
+    TcpWatchProc,		/* Initialize notifier. */
+    TcpGetHandleProc,		/* Get OS handles out of channel. */
+    TcpClose2Proc,		/* Close2 proc. */
+    TcpBlockModeProc,		/* Set blocking or non-blocking mode.*/
+    NULL,			/* flush proc. */
+    NULL,			/* handler proc. */
+    NULL,			/* wide seek proc. */
+    TcpThreadActionProc,	/* thread action proc. */
+    NULL			/* truncate proc. */
 };
+
+/*
+ * The following variable holds the network name of this host.
+ */
+
+static TclInitProcessGlobalValueProc InitializeHostName;
+static ProcessGlobalValue hostName =
+	{0, 0, NULL, NULL, InitializeHostName, NULL, NULL};
+
+/*
+ * Address print debug functions
+ */
+#if 0
+void printaddrinfo(struct addrinfo *ai, char *prefix)
+{
+    char host[NI_MAXHOST], port[NI_MAXSERV];
+    getnameinfo(ai->ai_addr, ai->ai_addrlen,
+		host, sizeof(host),
+		port, sizeof(port),
+		NI_NUMERICHOST|NI_NUMERICSERV);
+}
+void printaddrinfolist(struct addrinfo *addrlist, char *prefix)
+{
+    struct addrinfo *ai;
+    for (ai = addrlist; ai != NULL; ai = ai->ai_next) {
+	printaddrinfo(ai, prefix);
+    }
+}
+#endif
 
 /*
  *----------------------------------------------------------------------
  *
- * InitSockets --
- *
- *	Initialize the socket module.  If winsock startup is successful,
- *	registers the event window for the socket notifier code.
+ * InitializeHostName --
  *
- *	Assumes socketMutex is held.
+ *	This routine sets the process global value of the name of the local
+ *	host on which the process is running.
  *
  * Results:
  *	None.
  *
- * Side effects:
- *	Initializes winsock, registers a new window class and creates a
- *	window for use in asynchronous socket notification.
- *
  *----------------------------------------------------------------------
  */
 
-static void
-InitSockets(void)
+void
+InitializeHostName(
+    char **valuePtr,
+    int *lengthPtr,
+    Tcl_Encoding *encodingPtr)
 {
-    DWORD id, err;
-    WSADATA wsaData;
-    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
-
-    if (!initialized) {
-	initialized = 1;
-	TclCreateLateExitHandler(SocketExitHandler, NULL);
+    TCHAR tbuf[MAX_COMPUTERNAME_LENGTH + 1];
+    DWORD length = MAX_COMPUTERNAME_LENGTH + 1;
+    Tcl_DString ds;
 
+    if (GetComputerName(tbuf, &length) != 0) {
 	/*
-	 * Create the async notification window with a new class. We must
-	 * create a new class to avoid a Windows 95 bug that causes us to get
-	 * the wrong message number for socket events if the message window is
-	 * a subclass of a static control.
+	 * Convert string from native to UTF then change to lowercase.
 	 */
 
-	windowClass.style = 0;
-	windowClass.cbClsExtra = 0;
-	windowClass.cbWndExtra = 0;
-	windowClass.hInstance = TclWinGetTclInstance();
-	windowClass.hbrBackground = NULL;
-	windowClass.lpszMenuName = NULL;
-	windowClass.lpszClassName = classname;
-	windowClass.lpfnWndProc = SocketProc;
-	windowClass.hIcon = NULL;
-	windowClass.hCursor = NULL;
-
-	if (!RegisterClass(&windowClass)) {
-	    TclWinConvertError(GetLastError());
-	    goto initFailure;
-	}
-
-	/*
-	 * Initialize the winsock library and check the interface version
-	 * actually loaded. We only ask for the 1.1 interface and do require
-	 * that it not be less than 1.1.
-	 */
+	Tcl_UtfToLower(Tcl_WinTCharToUtf(tbuf, -1, &ds));
 
-	err = WSAStartup((WORD) MAKEWORD(WSA_VERSION_MAJOR,WSA_VERSION_MINOR),
-		&wsaData);
-	if (err != 0) {
-	    TclWinConvertError(err);
-	    goto initFailure;
-	}
+    } else {
+	Tcl_DStringInit(&ds);
+	if (TclpHasSockets(NULL) == TCL_OK) {
+	    /*
+	     * The buffer size of 256 is recommended by the MSDN page that
+	     * documents gethostname() as being always adequate.
+	     */
 
-	/*
-	 * Note the byte positions ae swapped for the comparison, so that
-	 * 0x0002 (2.0, MAKEWORD(2,0)) doesn't look less than 0x0101 (1.1). We
-	 * want the comparison to be 0x0200 < 0x0101.
-	 */
+	    Tcl_DString inDs;
 
-	if (MAKEWORD(HIBYTE(wsaData.wVersion), LOBYTE(wsaData.wVersion))
-		< MAKEWORD(WSA_VERSION_MINOR, WSA_VERSION_MAJOR)) {
-	    TclWinConvertError(WSAVERNOTSUPPORTED);
-	    WSACleanup();
-	    goto initFailure;
+	    Tcl_DStringInit(&inDs);
+	    Tcl_DStringSetLength(&inDs, 256);
+	    if (gethostname(Tcl_DStringValue(&inDs),
+		    Tcl_DStringLength(&inDs)) == 0) {
+		Tcl_ExternalToUtfDString(NULL, Tcl_DStringValue(&inDs), -1,
+			&ds);
+	    }
+	    Tcl_DStringFree(&inDs);
 	}
     }
 
-    /*
-     * Check for per-thread initialization.
-     */
-
-    if (tsdPtr != NULL) {
-	return;
-    }
-
-    /*
-     * OK, this thread has never done anything with sockets before.  Construct
-     * a worker thread to handle asynchronous events related to sockets
-     * assigned to _this_ thread.
-     */
-
-    tsdPtr = TCL_TSD_INIT(&dataKey);
-    tsdPtr->socketList = NULL;
-    tsdPtr->hwnd       = NULL;
-    tsdPtr->threadId   = Tcl_GetCurrentThread();
-    tsdPtr->readyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
-    if (tsdPtr->readyEvent == NULL) {
-	goto initFailure;
-    }
-    tsdPtr->socketListLock = CreateEvent(NULL, FALSE, TRUE, NULL);
-    if (tsdPtr->socketListLock == NULL) {
-	goto initFailure;
-    }
-    tsdPtr->socketThread = CreateThread(NULL, 256, SocketThread, tsdPtr, 0,
-	    &id);
-    if (tsdPtr->socketThread == NULL) {
-	goto initFailure;
-    }
-
-    SetThreadPriority(tsdPtr->socketThread, THREAD_PRIORITY_HIGHEST);
-
-    /*
-     * Wait for the thread to signal when the window has been created and if
-     * it is ready to go.
-     */
-
-    WaitForSingleObject(tsdPtr->readyEvent, INFINITE);
-
-    if (tsdPtr->hwnd == NULL) {
-	goto initFailure;	/* Trouble creating the window. */
-    }
-
-    Tcl_CreateEventSource(SocketSetupProc, SocketCheckProc, NULL);
-    return;
-
-  initFailure:
-    TclpFinalizeSockets();
-    initialized = -1;
-    return;
+    *encodingPtr = Tcl_GetEncoding(NULL, "utf-8");
+    *lengthPtr = Tcl_DStringLength(&ds);
+    *valuePtr = ckalloc((*lengthPtr) + 1);
+    memcpy(*valuePtr, Tcl_DStringValue(&ds), (size_t)(*lengthPtr)+1);
+    Tcl_DStringFree(&ds);
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * SocketsEnabled --
+ * Tcl_GetHostName --
  *
- *	Check that the WinSock was successfully initialized.
+ *	Returns the name of the local host.
  *
  * Results:
- *	1 if it is.
+ *	A string containing the network name for this machine, or an empty
+ *	string if we can't figure out the name. The caller must not modify or
+ *	free this string.
  *
  * Side effects:
- *	None.
+ *	Caches the name to return for future calls.
  *
  *----------------------------------------------------------------------
  */
 
-    /* ARGSUSED */
-static int
-SocketsEnabled(void)
+const char *
+Tcl_GetHostName(void)
 {
-    int enabled;
-
-    Tcl_MutexLock(&socketMutex);
-    enabled = (initialized == 1);
-    Tcl_MutexUnlock(&socketMutex);
-    return enabled;
+    return Tcl_GetString(TclGetProcessGlobalValue(&hostName));
 }
-
 
 /*
  *----------------------------------------------------------------------
  *
- * SocketExitHandler --
+ * TclpHasSockets --
  *
- *	Callback invoked during exit clean up to delete the socket
- *	communication window and to release the WinSock DLL.
+ *	This function determines whether sockets are available on the current
+ *	system and returns an error in interp if they are not. Note that
+ *	interp may be NULL.
  *
  * Results:
- *	None.
+ *	Returns TCL_OK if the system supports sockets, or TCL_ERROR with an
+ *	error in interp (if non-NULL).
  *
  * Side effects:
- *	None.
+ *	If not already prepared, initializes the TSD structure and socket
+ *	message handling thread associated to the calling thread for the
+ *	subsystem of the driver.
  *
  *----------------------------------------------------------------------
  */
 
-    /* ARGSUSED */
-static void
-SocketExitHandler(
-    ClientData clientData)		/* Not used. */
+int
+TclpHasSockets(
+    Tcl_Interp *interp)		/* Where to write an error message if sockets
+				 * are not present, or NULL if no such message
+				 * is to be written. */
 {
     Tcl_MutexLock(&socketMutex);
-
-    /*
-     * Make sure the socket event handling window is cleaned-up for, at
-     * most, this thread.
-     */
-
-    TclpFinalizeSockets();
-    UnregisterClass(classname, TclWinGetTclInstance());
-    WSACleanup();
-    initialized = 0;
+    InitSockets();
     Tcl_MutexUnlock(&socketMutex);
+
+    if (SocketsEnabled()) {
+	return TCL_OK;
+    }
+    if (interp != NULL) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"sockets are not available on this system", -1));
+    }
+    return TCL_ERROR;
 }
 
 /*
@@ -525,365 +508,451 @@ TclpFinalizeSockets(void)
 /*
  *----------------------------------------------------------------------
  *
- * TclpHasSockets --
+ * TcpBlockModeProc --
  *
- *	This function determines whether sockets are available on the current
- *	system and returns an error in interp if they are not. Note that
- *	interp may be NULL.
+ *	This function is invoked by the generic IO level to set blocking and
+ *	nonblocking mode on a TCP socket based channel.
  *
  * Results:
- *	Returns TCL_OK if the system supports sockets, or TCL_ERROR with an
- *	error in interp (if non-NULL).
+ *	0 if successful, errno when failed.
  *
  * Side effects:
- *	If not already prepared, initializes the TSD structure and socket
- *	message handling thread associated to the calling thread for the
- *	subsystem of the driver.
+ *	Sets the device into blocking or nonblocking mode.
  *
  *----------------------------------------------------------------------
  */
 
-int
-TclpHasSockets(
-    Tcl_Interp *interp)		/* Where to write an error message if sockets
-				 * are not present, or NULL if no such message
-				 * is to be written. */
+	/* ARGSUSED */
+static int
+TcpBlockModeProc(
+    ClientData instanceData,	/* Socket state. */
+    int mode)			/* The mode to set. Can be one of
+				 * TCL_MODE_BLOCKING or
+				 * TCL_MODE_NONBLOCKING. */
 {
-    Tcl_MutexLock(&socketMutex);
-    InitSockets();
-    Tcl_MutexUnlock(&socketMutex);
+    TcpState *statePtr = instanceData;
 
-    if (SocketsEnabled()) {
-	return TCL_OK;
-    }
-    if (interp != NULL) {
-	Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		"sockets are not available on this system", -1));
+    if (mode == TCL_MODE_NONBLOCKING) {
+	statePtr->flags |= TCP_NONBLOCKING;
+    } else {
+	statePtr->flags &= ~(TCP_NONBLOCKING);
     }
-    return TCL_ERROR;
+    return 0;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * SocketSetupProc --
+ * WaitForConnect --
  *
- *	This function is invoked before Tcl_DoOneEvent blocks waiting for an
- *	event.
+ *	Check the state of an async connect process. If a connection
+ *	attempt terminated, process it, which may finalize it or may
+ *	start the next attempt. If a connect error occures, it is saved
+ *	in statePtr->connectError to be reported by 'fconfigure -error'.
+ *
+ *	There are two modes of operation, defined by errorCodePtr:
+ *	 *  non-NULL: Called by explicite read/write command. block if
+ *	    socket is blocking.
+ *	    May return two error codes:
+ *	     *	EWOULDBLOCK: if connect is still in progress
+ *	     *	ENOTCONN: if connect failed. This would be the error
+ *		message of a rect or sendto syscall so this is
+ *		emulated here.
+ *	 *  Null: Called by a backround operation. Do not block and
+ *	    don't return any error code.
  *
  * Results:
- *	None.
+ * 	0 if the connection has completed, -1 if still in progress
+ * 	or there is an error.
  *
  * Side effects:
- *	Adjusts the block time if needed.
+ *	Processes socket events off the system queue.
+ *	May process asynchroneous connect.
  *
  *----------------------------------------------------------------------
  */
 
-void
-SocketSetupProc(
-    ClientData data,		/* Not used. */
-    int flags)			/* Event flags as passed to Tcl_DoOneEvent. */
+static int
+WaitForConnect(
+    TcpState *statePtr,		/* State of the socket. */
+    int *errorCodePtr)		/* Where to store errors?
+				 * A passed null-pointer activates background mode.
+				 */
 {
-    SocketInfo *infoPtr;
-    Tcl_Time blockTime = { 0, 0 };
-    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+    int result;
+    int oldMode;
+    ThreadSpecificData *tsdPtr;
 
-    if (!(flags & TCL_FILE_EVENTS)) {
-	return;
+    /*
+     * Check if an async connect failed already and error reporting is demanded,
+     * return the error ENOTCONN
+     */
+
+    if (errorCodePtr != NULL && (statePtr->flags & TCP_ASYNC_FAILED)) {
+	*errorCodePtr = ENOTCONN;
+	return -1;
     }
 
     /*
-     * Check to see if there is a ready socket.	 If so, poll.
+     * Check if an async connect is running. If not return ok
      */
 
-    WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
-    for (infoPtr = tsdPtr->socketList; infoPtr != NULL;
-	    infoPtr = infoPtr->nextPtr) {
-	if (infoPtr->readyEvents & infoPtr->watchEvents) {
-	    Tcl_SetMaxBlockTime(&blockTime);
-	    break;
-	}
+    if (!(statePtr->flags & TCP_ASYNC_CONNECT)) {
+	return 0;
     }
-    SetEvent(tsdPtr->socketListLock);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * SocketCheckProc --
- *
- *	This function is called by Tcl_DoOneEvent to check the socket event
- *	source for events.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	May queue an event.
- *
- *----------------------------------------------------------------------
- */
 
-static void
-SocketCheckProc(
-    ClientData data,		/* Not used. */
-    int flags)			/* Event flags as passed to Tcl_DoOneEvent. */
-{
-    SocketInfo *infoPtr;
-    SocketEvent *evPtr;
-    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+    /*
+     * Be sure to disable event servicing so we are truly modal.
+     */
 
-    if (!(flags & TCL_FILE_EVENTS)) {
-	return;
-    }
+    oldMode = Tcl_SetServiceMode(TCL_SERVICE_NONE);
 
     /*
-     * Queue events for any ready sockets that don't already have events
-     * queued (caused by persistent states that won't generate WinSock
-     * events).
+     * Loop in the blocking case until the connect signal is present
      */
 
-    WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
-    for (infoPtr = tsdPtr->socketList; infoPtr != NULL;
-	    infoPtr = infoPtr->nextPtr) {
-	if ((infoPtr->readyEvents & infoPtr->watchEvents)
-		&& !(infoPtr->flags & SOCKET_PENDING)) {
-	    infoPtr->flags |= SOCKET_PENDING;
-	    evPtr = ckalloc(sizeof(SocketEvent));
-	    evPtr->header.proc = SocketEventProc;
-	    evPtr->socket = infoPtr->sockets->fd;
-	    Tcl_QueueEvent((Tcl_Event *) evPtr, TCL_QUEUE_TAIL);
+    while (1) {
+
+	/* get statePtr lock */
+        tsdPtr = TclThreadDataKeyGet(&dataKey);
+	WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+
+	/* Check for connect event */
+	if (statePtr->readyEvents & FD_CONNECT) {
+
+	    /* Consume the connect event */
+	    statePtr->readyEvents &= ~(FD_CONNECT);
+
+	    /*
+	     * For blocking sockets and foreground processing
+	     * disable async connect as we continue now synchoneously
+	     */
+	    if ( errorCodePtr != NULL &&
+		    ! (statePtr->flags & TCP_NONBLOCKING) ) {
+		CLEAR_BITS(statePtr->flags, TCP_ASYNC_CONNECT);
+	    }
+
+	    /* Free list lock */
+	    SetEvent(tsdPtr->socketListLock);
+
+	    /*
+	     * Continue connect.
+	     * If switched to synchroneous connect, the connect is terminated.
+	     */
+	    result = TcpConnect(NULL, statePtr);
+
+	    /* Restore event service mode */
+	    (void) Tcl_SetServiceMode(oldMode);
+
+	    /*
+	     * Check for Succesfull connect or async connect restart
+	     */
+
+	    if (result == TCL_OK) {
+		/*
+		 * Check for async connect restart
+		 * (not possible for foreground blocking operation)
+		 */
+		if ( statePtr->flags & TCP_ASYNC_PENDING ) {
+		    if (errorCodePtr != NULL) {
+			*errorCodePtr = EWOULDBLOCK;
+		    }
+		    return -1;
+		}
+		return 0;
+	    }
+
+	    /*
+	     * Connect finally failed.
+	     * For foreground operation return ENOTCONN.
+	     */
+
+	    if (errorCodePtr != NULL) {
+		*errorCodePtr = ENOTCONN;
+	    }
+	    return -1;
 	}
+
+        /* Free list lock */
+        SetEvent(tsdPtr->socketListLock);
+
+	/*
+	 * Background operation returns with no action as there was no connect
+	 * event
+	 */
+
+	if ( errorCodePtr == NULL ) {
+	    return -1;
+	}
+
+	/*
+	 * A non blocking socket waiting for an asyncronous connect
+	 * returns directly the error EWOULDBLOCK
+	 */
+
+	if (statePtr->flags & TCP_NONBLOCKING) {
+	    *errorCodePtr = EWOULDBLOCK;
+	    return -1;
+	}
+
+	/*
+	 * Wait until something happens.
+	 */
+
+	WaitForSingleObject(tsdPtr->readyEvent, INFINITE);
     }
-    SetEvent(tsdPtr->socketListLock);
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * SocketEventProc --
+ * TcpInputProc --
  *
- *	This function is called by Tcl_ServiceEvent when a socket event
- *	reaches the front of the event queue. This function is responsible for
- *	notifying the generic channel code.
+ *	This function is invoked by the generic IO level to read input from a
+ *	TCP socket based channel.
  *
  * Results:
- *	Returns 1 if the event was handled, meaning it should be removed from
- *	the queue. Returns 0 if the event was not handled, meaning it should
- *	stay on the queue. The only time the event isn't handled is if the
- *	TCL_FILE_EVENTS flag bit isn't set.
+ *	The number of bytes read is returned or -1 on error. An output
+ *	argument contains the POSIX error code on error, or zero if no error
+ *	occurred.
  *
  * Side effects:
- *	Whatever the channel callback functions do.
+ *	Reads input from the input device of the channel.
  *
  *----------------------------------------------------------------------
  */
 
+	/* ARGSUSED */
 static int
-SocketEventProc(
-    Tcl_Event *evPtr,		/* Event to service. */
-    int flags)			/* Flags that indicate what events to handle,
-				 * such as TCL_FILE_EVENTS. */
+TcpInputProc(
+    ClientData instanceData,	/* Socket state. */
+    char *buf,			/* Where to store data read. */
+    int bufSize,		/* How much space is available in the
+				 * buffer? */
+    int *errorCodePtr)		/* Where to store error code. */
 {
-    SocketInfo *infoPtr;
-    SocketEvent *eventPtr = (SocketEvent *) evPtr;
-    int mask = 0, events;
-    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
-    TcpFdList *fds;
-    SOCKET newSocket;
-    address addr;
-    int len;
+    TcpState *statePtr = instanceData;
+    int bytesRead;
+    DWORD error;
+    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
 
-    if (!(flags & TCL_FILE_EVENTS)) {
-	return 0;
-    }
+    *errorCodePtr = 0;
 
     /*
-     * Find the specified socket on the socket list.
+     * Check that WinSock is initialized; do not call it if not, to prevent
+     * system crashes. This can happen at exit time if the exit handler for
+     * WinSock ran before other exit handlers that want to use sockets.
      */
 
-    WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
-    for (infoPtr = tsdPtr->socketList; infoPtr != NULL;
-	    infoPtr = infoPtr->nextPtr) {
-	if (infoPtr->sockets->fd == eventPtr->socket) {
-	    break;
-	}
+    if (!SocketsEnabled()) {
+	*errorCodePtr = EFAULT;
+	return -1;
     }
 
     /*
-     * Discard events that have gone stale.
+     * First check to see if EOF was already detected, to prevent calling the
+     * socket stack after the first time EOF is detected.
      */
 
-    if (!infoPtr) {
-        SetEvent(tsdPtr->socketListLock);
-	return 1;
+    if (statePtr->flags & SOCKET_EOF) {
+	return 0;
     }
 
-    infoPtr->flags &= ~SOCKET_PENDING;
-
     /*
-     * Handle connection requests directly.
+     * Check if there is an async connect running.
+     * For blocking sockets terminate connect, otherwise do one step.
+     * For a non blocking socket return EWOULDBLOCK if connect not terminated
      */
 
-    if (infoPtr->readyEvents & FD_ACCEPT) {
-	for (fds = infoPtr->sockets; fds != NULL; fds = fds->next) {
-
-	    /*
-	    * Accept the incoming connection request.
-	    */
-	    len = sizeof(address);
-
-	    newSocket = accept(fds->fd, &(addr.sa), &len);
-
-	    /* On Tcl server sockets with multiple OS fds we loop over the fds trying
-	     * an accept() on each, so we expect INVALID_SOCKET.  There are also other
-	     * network stack conditions that can result in FD_ACCEPT but a subsequent
-	     * failure on accept() by the time we get around to it.
-	     * Access to sockets (acceptEventCount, readyEvents) in socketList
-	     * is still protected by the lock (prevents reintroduction of 
-	     * SF Tcl Bug 3056775.
-	     */
-
-	    if (newSocket == INVALID_SOCKET) {
-		/* int err = WSAGetLastError(); */
-		continue;
-	    }
+    if (WaitForConnect(statePtr, errorCodePtr) != 0) {
+	return -1;
+    }
 
-	    /*
-	     * It is possible that more than one FD_ACCEPT has been sent, so an extra
-	     * count must be kept. Decrement the count, and reset the readyEvent bit
-	     * if the count is no longer > 0.
-	     */
-	    infoPtr->acceptEventCount--;
+    /*
+     * No EOF, and it is connected, so try to read more from the socket. Note
+     * that we clear the FD_READ bit because read events are level triggered
+     * so a new event will be generated if there is still data available to be
+     * read. We have to simulate blocking behavior here since we are always
+     * using non-blocking sockets.
+     */
 
-	    if (infoPtr->acceptEventCount <= 0) {
-		infoPtr->readyEvents &= ~(FD_ACCEPT);
-	    }
+    while (1) {
+	SendMessage(tsdPtr->hwnd, SOCKET_SELECT,
+		(WPARAM) UNSELECT, (LPARAM) statePtr);
+	/* single fd operation: this proc is only called for a connected socket. */
+	bytesRead = recv(statePtr->sockets->fd, buf, bufSize, 0);
+	statePtr->readyEvents &= ~(FD_READ);
 
-	    SetEvent(tsdPtr->socketListLock);
+	/*
+	 * Check for end-of-file condition or successful read.
+	 */
 
-	    /* Caution: TcpAccept() has the side-effect of evaluating the server
-	     * accept script (via AcceptCallbackProc() in tclIOCmd.c), which can
-	     * close the server socket and invalidate infoPtr and fds.
-	     * If TcpAccept() accepts a socket we must return immediately and let
-	     * SocketCheckProc queue additional FD_ACCEPT events.
-	     */
-	    TcpAccept(fds, newSocket, addr);
-	    return 1;
+	if (bytesRead == 0) {
+	    statePtr->flags |= SOCKET_EOF;
+	}
+	if (bytesRead != SOCKET_ERROR) {
+	    break;
 	}
 
-	/* Loop terminated with no sockets accepted; clear the ready mask so 
-	 * we can detect the next connection request. Note that connection 
-	 * requests are level triggered, so if there is a request already 
-	 * pending, a new event will be generated.
+	/*
+	 * If an error occurs after the FD_CLOSE has arrived, then ignore the
+	 * error and report an EOF.
 	 */
-	infoPtr->acceptEventCount = 0;
-	infoPtr->readyEvents &= ~(FD_ACCEPT);
-
-	SetEvent(tsdPtr->socketListLock);
-	return 1;
-    }
-
-    SetEvent(tsdPtr->socketListLock);
 
-    /*
-     * Mask off unwanted events and compute the read/write mask so we can
-     * notify the channel.
-     */
+	if (statePtr->readyEvents & FD_CLOSE) {
+	    statePtr->flags |= SOCKET_EOF;
+	    bytesRead = 0;
+	    break;
+	}
 
-    events = infoPtr->readyEvents & infoPtr->watchEvents;
+	error = WSAGetLastError();
 
-    if (events & FD_CLOSE) {
 	/*
-	 * If the socket was closed and the channel is still interested in
-	 * read events, then we need to ensure that we keep polling for this
-	 * event until someone does something with the channel. Note that we
-	 * do this before calling Tcl_NotifyChannel so we don't have to watch
-	 * out for the channel being deleted out from under us. This may cause
-	 * a redundant trip through the event loop, but it's simpler than
-	 * trying to do unwind protection.
+	 * If an RST comes, then ignore the error and report an EOF just like
+	 * on unix.
 	 */
 
-	Tcl_Time blockTime = { 0, 0 };
-
-	Tcl_SetMaxBlockTime(&blockTime);
-	mask |= TCL_READABLE|TCL_WRITABLE;
-    } else if (events & FD_READ) {
-	fd_set readFds;
-	struct timeval timeout;
+	if (error == WSAECONNRESET) {
+	    statePtr->flags |= SOCKET_EOF;
+	    bytesRead = 0;
+	    break;
+	}
 
 	/*
-	 * We must check to see if data is really available, since someone
-	 * could have consumed the data in the meantime. Turn off async
-	 * notification so select will work correctly. If the socket is still
-	 * readable, notify the channel driver, otherwise reset the async
-	 * select handler and keep waiting.
+	 * Check for error condition or underflow in non-blocking case.
 	 */
 
-	SendMessage(tsdPtr->hwnd, SOCKET_SELECT,
-		(WPARAM) UNSELECT, (LPARAM) infoPtr);
+	if ((statePtr->flags & TCP_NONBLOCKING) || (error != WSAEWOULDBLOCK)) {
+	    TclWinConvertError(error);
+	    *errorCodePtr = Tcl_GetErrno();
+	    bytesRead = -1;
+	    break;
+	}
 
-	FD_ZERO(&readFds);
-	FD_SET(infoPtr->sockets->fd, &readFds);
-	timeout.tv_usec = 0;
-	timeout.tv_sec = 0;
+	/*
+	 * In the blocking case, wait until the file becomes readable or
+	 * closed and try again.
+	 */
 
-	if (select(0, &readFds, NULL, NULL, &timeout) != 0) {
-	    mask |= TCL_READABLE;
-	} else {
-	    infoPtr->readyEvents &= ~(FD_READ);
-	    SendMessage(tsdPtr->hwnd, SOCKET_SELECT,
-		    (WPARAM) SELECT, (LPARAM) infoPtr);
+	if (!WaitForSocketEvent(statePtr, FD_READ|FD_CLOSE, errorCodePtr)) {
+	    bytesRead = -1;
+	    break;
 	}
     }
-    if (events & (FD_WRITE | FD_CONNECT)) {
-	mask |= TCL_WRITABLE;
-	if (events & FD_CONNECT && infoPtr->lastError != NO_ERROR) {
-	    /*
-	     * Connect errors should also fire the readable handler.
-	     */
 
-	    mask |= TCL_READABLE;
-	}
-    }
+    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM)SELECT, (LPARAM)statePtr);
 
-    if (mask) {
-	Tcl_NotifyChannel(infoPtr->channel, mask);
-    }
-    return 1;
+    return bytesRead;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TcpBlockProc --
+ * TcpOutputProc --
  *
- *	Sets a socket into blocking or non-blocking mode.
+ *	This function is called by the generic IO level to write data to a
+ *	socket based channel.
  *
  * Results:
- *	0 if successful, errno if there was an error.
+ *	The number of bytes written or -1 on failure.
  *
  * Side effects:
- *	None.
+ *	Produces output on the socket.
  *
  *----------------------------------------------------------------------
  */
 
 static int
-TcpBlockProc(
-    ClientData instanceData,	/* The socket to block/un-block. */
-    int mode)			/* TCL_MODE_BLOCKING or
-				 * TCL_MODE_NONBLOCKING. */
+TcpOutputProc(
+    ClientData instanceData,	/* Socket state. */
+    const char *buf,		/* The data buffer. */
+    int toWrite,		/* How many bytes to write? */
+    int *errorCodePtr)		/* Where to store error code. */
 {
-    SocketInfo *infoPtr = instanceData;
+    TcpState *statePtr = instanceData;
+    int written;
+    DWORD error;
+    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
 
-    if (mode == TCL_MODE_NONBLOCKING) {
-	infoPtr->flags |= SOCKET_ASYNC;
-    } else {
-	infoPtr->flags &= ~(SOCKET_ASYNC);
+    *errorCodePtr = 0;
+
+    /*
+     * Check that WinSock is initialized; do not call it if not, to prevent
+     * system crashes. This can happen at exit time if the exit handler for
+     * WinSock ran before other exit handlers that want to use sockets.
+     */
+
+    if (!SocketsEnabled()) {
+	*errorCodePtr = EFAULT;
+	return -1;
     }
-    return 0;
+
+    /*
+     * Check if there is an async connect running.
+     * For blocking sockets terminate connect, otherwise do one step.
+     * For a non blocking socket return EWOULDBLOCK if connect not terminated
+     */
+
+    if (WaitForConnect(statePtr, errorCodePtr) != 0) {
+	return -1;
+    }
+
+    while (1) {
+	SendMessage(tsdPtr->hwnd, SOCKET_SELECT,
+		(WPARAM) UNSELECT, (LPARAM) statePtr);
+
+	/* single fd operation: this proc is only called for a connected socket. */
+	written = send(statePtr->sockets->fd, buf, toWrite, 0);
+	if (written != SOCKET_ERROR) {
+	    /*
+	     * Since Windows won't generate a new write event until we hit an
+	     * overflow condition, we need to force the event loop to poll
+	     * until the condition changes.
+	     */
+
+	    if (statePtr->watchEvents & FD_WRITE) {
+		Tcl_Time blockTime = { 0, 0 };
+		Tcl_SetMaxBlockTime(&blockTime);
+	    }
+	    break;
+	}
+
+	/*
+	 * Check for error condition or overflow. In the event of overflow, we
+	 * need to clear the FD_WRITE flag so we can detect the next writable
+	 * event. Note that Windows only sends a new writable event after a
+	 * send fails with WSAEWOULDBLOCK.
+	 */
+
+	error = WSAGetLastError();
+	if (error == WSAEWOULDBLOCK) {
+	    statePtr->readyEvents &= ~(FD_WRITE);
+	    if (statePtr->flags & TCP_NONBLOCKING) {
+		*errorCodePtr = EWOULDBLOCK;
+		written = -1;
+		break;
+	    }
+	} else {
+	    TclWinConvertError(error);
+	    *errorCodePtr = Tcl_GetErrno();
+	    written = -1;
+	    break;
+	}
+
+	/*
+	 * In the blocking case, wait until the file becomes writable or
+	 * closed and try again.
+	 */
+
+	if (!WaitForSocketEvent(statePtr, FD_WRITE|FD_CLOSE, errorCodePtr)) {
+	    written = -1;
+	    break;
+	}
+    }
+
+    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM)SELECT, (LPARAM)statePtr);
+
+    return written;
 }
 
 /*
@@ -910,10 +979,10 @@ TcpCloseProc(
     ClientData instanceData,	/* The socket to close. */
     Tcl_Interp *interp)		/* Unused. */
 {
-    SocketInfo *infoPtr = instanceData;
+    TcpState *statePtr = instanceData;
     /* TIP #218 */
     int errorCode = 0;
-    /* ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); */
+    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
 
     /*
      * Check that WinSock is initialized; do not call it if not, to prevent
@@ -928,9 +997,9 @@ TcpCloseProc(
 	 * background.
 	 */
 
-	while ( infoPtr->sockets != NULL ) {
-	    TcpFdList *thisfd = infoPtr->sockets;
-	    infoPtr->sockets = thisfd->next;
+	while ( statePtr->sockets != NULL ) {
+	    TcpFdList *thisfd = statePtr->sockets;
+	    statePtr->sockets = thisfd->next;
 
 	    if (closesocket(thisfd->fd) == SOCKET_ERROR) {
 		TclWinConvertError((DWORD) WSAGetLastError());
@@ -940,6 +1009,30 @@ TcpCloseProc(
 	}
     }
 
+    if (statePtr->addrlist != NULL) {
+        freeaddrinfo(statePtr->addrlist);
+    }
+    if (statePtr->myaddrlist != NULL) {
+        freeaddrinfo(statePtr->myaddrlist);
+    }
+
+    /*
+     * Clear an eventual tsd info list pointer.
+     * This may be called, if an async socket connect fails or is closed
+     * between connect and thread action callback.
+     */
+    if (tsdPtr->pendingTcpState != NULL
+	    && tsdPtr->pendingTcpState == statePtr) {
+
+	/* get infoPtr lock, because this concerns the notifier thread */
+	WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+
+	tsdPtr->pendingTcpState = NULL;
+
+	/* Free list lock */
+	SetEvent(tsdPtr->socketListLock);
+    }
+
     /*
      * TIP #218. Removed the code removing the structure from the global
      * socket list. This is now done by the thread action callbacks, and only
@@ -947,7 +1040,7 @@ TcpCloseProc(
      * fear of damaging the list.
      */
 
-    ckfree(infoPtr);
+    ckfree(statePtr);
     return errorCode;
 }
 
@@ -974,14 +1067,15 @@ TcpClose2Proc(
     Tcl_Interp *interp,		/* For error reporting. */
     int flags)			/* Flags that indicate which side to close. */
 {
-    SocketInfo *infoPtr = instanceData;
-    int errorCode = 0, sd;
+    TcpState *statePtr = instanceData;
+    int errorCode = 0;
+    int sd;
 
     /*
      * Shutdown the OS socket handle.
      */
 
-    switch (flags) {
+    switch(flags) {
     case TCL_CLOSE_READ:
 	sd = SD_RECEIVE;
 	break;
@@ -991,14 +1085,14 @@ TcpClose2Proc(
     default:
 	if (interp) {
 	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "Socket close2proc called bidirectionally", -1));
+		    "socket close2proc called bidirectionally", -1));
 	}
 	return TCL_ERROR;
     }
 
     /* single fd operation: Tcl_OpenTcpServer() does not set TCL_READABLE or
      * TCL_WRITABLE so this should never be called for a server socket. */
-    if (shutdown(infoPtr->sockets->fd, sd) == SOCKET_ERROR) {
+    if (shutdown(statePtr->sockets->fd, sd) == SOCKET_ERROR) {
 	TclWinConvertError((DWORD) WSAGetLastError());
 	errorCode = Tcl_GetErrno();
     }
@@ -1009,136 +1103,138 @@ TcpClose2Proc(
 /*
  *----------------------------------------------------------------------
  *
- * AddSocketInfoFd --
+ * TcpSetOptionProc --
  *
- *	This function adds a SOCKET file descriptor to the 'sockets' linked 
- *	list of a SocketInfo structure.
+ *	Sets Tcp channel specific options.
  *
  * Results:
- *	None.
+ *	None, unless an error happens.
  *
  * Side effects:
- *	None, except for allocation of memory.
+ *	Changes attributes of the socket at the system level.
  *
  *----------------------------------------------------------------------
  */
 
-static void
-AddSocketInfoFd(
-    SocketInfo *infoPtr, 
-    SOCKET socket)
+static int
+TcpSetOptionProc(
+    ClientData instanceData,	/* Socket state. */
+    Tcl_Interp *interp,		/* For error reporting - can be NULL. */
+    const char *optionName,	/* Name of the option to set. */
+    const char *value)		/* New value for option. */
 {
-    TcpFdList *fds = infoPtr->sockets;
+#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
+    TcpState *statePtr = instanceData;
+    SOCKET sock;
+#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/
 
-    if ( fds == NULL ) {
-	/* Add the first FD */
-	infoPtr->sockets = ckalloc(sizeof(TcpFdList));
-	fds = infoPtr->sockets;
-    } else {
-	/* Find end of list and append FD */
-	while ( fds->next != NULL ) {
-	    fds = fds->next;
+    /*
+     * Check that WinSock is initialized; do not call it if not, to prevent
+     * system crashes. This can happen at exit time if the exit handler for
+     * WinSock ran before other exit handlers that want to use sockets.
+     */
+
+    if (!SocketsEnabled()) {
+	if (interp) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "winsock is not initialized", -1));
 	}
-    
-	fds->next = ckalloc(sizeof(TcpFdList));
-	fds = fds->next;
+	return TCL_ERROR;
     }
 
-    /* Populate new FD */
-    fds->fd = socket;
-    fds->infoPtr = infoPtr;
-    fds->next = NULL;
-}
-
-    
-/*
- *----------------------------------------------------------------------
- *
- * NewSocketInfo --
- *
- *	This function allocates and initializes a new SocketInfo structure.
- *
- * Results:
- *	Returns a newly allocated SocketInfo.
- *
- * Side effects:
- *	None, except for allocation of memory.
- *
- *----------------------------------------------------------------------
- */
-
-static SocketInfo *
-NewSocketInfo(
-    SOCKET socket)
-{
-    SocketInfo *infoPtr = ckalloc(sizeof(SocketInfo));
-
-    /* ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); */
-    infoPtr->channel = 0;
-    infoPtr->sockets = NULL;
-    infoPtr->flags = 0;
-    infoPtr->watchEvents = 0;
-    infoPtr->readyEvents = 0;
-    infoPtr->selectEvents = 0;
-    infoPtr->acceptEventCount = 0;
-    infoPtr->acceptProc = NULL;
-    infoPtr->acceptProcData = NULL;
-    infoPtr->lastError = 0;
+#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
+    #error "TCL_FEATURE_KEEPALIVE_NAGLE not reviewed for whether to treat statePtr->sockets as single fd or list"
+    sock = statePtr->sockets->fd;
 
-    /*
-     * TIP #218. Removed the code inserting the new structure into the global
-     * list. This is now handled in the thread action callbacks, and only
-     * there.
-     */
+    if (!strcasecmp(optionName, "-keepalive")) {
+	BOOL val = FALSE;
+	int boolVar, rtn;
 
-    infoPtr->nextPtr = NULL;
+	if (Tcl_GetBoolean(interp, value, &boolVar) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	if (boolVar) {
+	    val = TRUE;
+	}
+	rtn = setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
+		(const char *) &val, sizeof(BOOL));
+	if (rtn != 0) {
+	    TclWinConvertError(WSAGetLastError());
+	    if (interp) {
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"couldn't set socket option: %s",
+			Tcl_PosixError(interp)));
+	    }
+	    return TCL_ERROR;
+	}
+	return TCL_OK;
+    } else if (!strcasecmp(optionName, "-nagle")) {
+	BOOL val = FALSE;
+	int boolVar, rtn;
 
-    AddSocketInfoFd(infoPtr, socket);
+	if (Tcl_GetBoolean(interp, value, &boolVar) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	if (!boolVar) {
+	    val = TRUE;
+	}
+	rtn = setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
+		(const char *) &val, sizeof(BOOL));
+	if (rtn != 0) {
+	    TclWinConvertError(WSAGetLastError());
+	    if (interp) {
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"couldn't set socket option: %s",
+			Tcl_PosixError(interp)));
+	    }
+	    return TCL_ERROR;
+	}
+	return TCL_OK;
+    }
 
-    return infoPtr;
+    return Tcl_BadChannelOption(interp, optionName, "keepalive nagle");
+#else
+    return Tcl_BadChannelOption(interp, optionName, "");
+#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * CreateSocket --
+ * TcpGetOptionProc --
+ *
+ *	Computes an option value for a TCP socket based channel, or a list of
+ *	all options and their values.
  *
- *	This function opens a new socket and initializes the SocketInfo
- *	structure.
+ *	Note: This code is based on code contributed by John Haxby.
  *
  * Results:
- *	Returns a new SocketInfo, or NULL with an error in interp.
+ *	A standard Tcl result. The value of the specified option or a list of
+ *	all options and their values is returned in the supplied DString. Sets
+ *	Error message if needed.
  *
  * Side effects:
- *	None, except for allocation of memory.
+ *	None.
  *
  *----------------------------------------------------------------------
  */
 
-static SocketInfo *
-CreateSocket(
-    Tcl_Interp *interp,		/* For error reporting; can be NULL. */
-    int port,			/* Port number to open. */
-    const char *host,		/* Name of host on which to open port. */
-    int server,			/* 1 if socket should be a server socket, else
-				 * 0 for a client socket. */
-    const char *myaddr,		/* Optional client-side address */
-    int myport,			/* Optional client-side port */
-    int async)			/* If nonzero, connect client socket
-				 * asynchronously. */
+static int
+TcpGetOptionProc(
+    ClientData instanceData,	/* Socket state. */
+    Tcl_Interp *interp,		/* For error reporting - can be NULL. */
+    const char *optionName,	/* Name of the option to retrieve the value
+				 * for, or NULL to get all options and their
+				 * values. */
+    Tcl_DString *dsPtr)		/* Where to store the computed value;
+				 * initialized by caller. */
 {
-    u_long flag = 1;		/* Indicates nonblocking mode. */
-    int asyncConnect = 0;	/* Will be 1 if async connect is in
-				 * progress. */
-    unsigned short chosenport = 0;
-    struct addrinfo *addrlist = NULL, *addrPtr;
-				/* Socket address to connect to. */
-    struct addrinfo *myaddrlist = NULL, *myaddrPtr;
-				/* Socket address for our side. */
-    const char *errorMsg = NULL;
-    SOCKET sock = INVALID_SOCKET;
-    SocketInfo *infoPtr = NULL;	/* The returned value. */
-    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
+    TcpState *statePtr = instanceData;
+    char host[NI_MAXHOST], port[NI_MAXSERV];
+    SOCKET sock;
+    size_t len = 0;
+    int reverseDNS = 0;
+#define SUPPRESS_RDNS_VAR "::tcl::unsupported::noReverseDNS"
 
     /*
      * Check that WinSock is initialized; do not call it if not, to prevent
@@ -1147,313 +1243,640 @@ CreateSocket(
      */
 
     if (!SocketsEnabled()) {
-	return NULL;
+	if (interp) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "winsock is not initialized", -1));
+	}
+	return TCL_ERROR;
     }
 
     /*
-     * Construct the addresses for each end of the socket.
+     * Go one step in async connect
+     * If any error is thrown save it as backround error to report eventually below
      */
+    WaitForConnect(statePtr, NULL);
 
-    if (!TclCreateSocketAddress(interp, &addrlist, host, port, server,
-	    &errorMsg)) {
-	goto error;
-    }
-    if (!TclCreateSocketAddress(interp, &myaddrlist, myaddr, myport, 1,
-	    &errorMsg)) {
-	goto error;
+    sock = statePtr->sockets->fd;
+    if (optionName != NULL) {
+	len = strlen(optionName);
     }
 
-    if (server) {
-
-	for (addrPtr = addrlist; addrPtr != NULL; addrPtr = addrPtr->ai_next) {
-	    sock = socket(addrPtr->ai_family, SOCK_STREAM, 0);
-	    if (sock == INVALID_SOCKET) {
-		TclWinConvertError((DWORD) WSAGetLastError());
-		continue;
-	    }
-
-	    /*
-	     * Win-NT has a misfeature that sockets are inherited in child
-	     * processes by default. Turn off the inherit bit.
-	     */
-
-	    SetHandleInformation((HANDLE) sock, HANDLE_FLAG_INHERIT, 0);
-
-	    /*
-	     * Set kernel space buffering
-	     */
-
-	    TclSockMinimumBuffers((void *)sock, TCP_BUFFER_SIZE);
-
-	    /*
-	     * Make sure we use the same port when opening two server sockets
-	     * for IPv4 and IPv6.
-	     *
-	     * As sockaddr_in6 uses the same offset and size for the port
-	     * member as sockaddr_in, we can handle both through the IPv4 API.
-	     */
+    if ((len > 1) && (optionName[1] == 'e') &&
+	    (strncmp(optionName, "-error", len) == 0)) {
 
-	    if (port == 0 && chosenport != 0) {
-		((struct sockaddr_in *) addrPtr->ai_addr)->sin_port =
-			htons(chosenport);
-	    }
+	/*
+	* Do not return any errors if async connect is running
+	*/
+	if ( ! (statePtr->flags & TCP_ASYNC_PENDING) ) {
 
-	    /*
-	     * Bind to the specified port. Note that we must not call
-	     * setsockopt with SO_REUSEADDR because Microsoft allows addresses
-	     * to be reused even if they are still in use.
-	     *
-	     * Bind should not be affected by the socket having already been
-	     * set into nonblocking mode. If there is trouble, this is one
-	     * place to look for bugs.
-	     */
 
-	    if (bind(sock, addrPtr->ai_addr, addrPtr->ai_addrlen)
-		    == SOCKET_ERROR) {
-		TclWinConvertError((DWORD) WSAGetLastError());
-		closesocket(sock);
-		continue;
-	    }
-	    if (port == 0 && chosenport == 0) {
-		address sockname;
-		socklen_t namelen = sizeof(sockname);
+	    if ( statePtr->flags & TCP_ASYNC_FAILED ) {
 
 		/*
-		 * Synchronize port numbers when binding to port 0 of multiple
-		 * addresses.
+		 * In case of a failed async connect, eventually report the
+		 * connect error only once.
+		 * Do not report the system error, as this comes again and again.
 		 */
 
-		if (getsockname(sock, &sockname.sa, &namelen) >= 0) {
-		    chosenport = ntohs(sockname.sa4.sin_port);
+		if ( statePtr->connectError != 0 ) {
+		    Tcl_DStringAppend(dsPtr,
+			    Tcl_ErrnoMsg(statePtr->connectError), -1);
+		    statePtr->connectError = 0;
 		}
-	    }
-
-	    /*
-	     * Set the maximum number of pending connect requests to the max
-	     * value allowed on each platform (Win32 and Win32s may be
-	     * different, and there may be differences between TCP/IP stacks).
-	     */
 
-	    if (listen(sock, SOMAXCONN) == SOCKET_ERROR) {
-		TclWinConvertError((DWORD) WSAGetLastError());
-		closesocket(sock);
-		continue;
-	    }
+	    } else {
 
-	    if (infoPtr == NULL) {
 		/*
-		 * Add this socket to the global list of sockets.
+		 * Report an eventual last error of the socket system
 		 */
 
-		infoPtr = NewSocketInfo(sock);
+		int optlen;
+		int ret;
+		DWORD err;
 
 		/*
-		 * Set up the select mask for connection request events.
+		 * Populater the err Variable with a possix error
 		 */
-
-		infoPtr->selectEvents = FD_ACCEPT;
-		infoPtr->watchEvents |= FD_ACCEPT;
-
-	    } else {
-		AddSocketInfoFd( infoPtr, sock );
-	    }
-	}
-    } else {
-	for (addrPtr = addrlist; addrPtr != NULL;
-		addrPtr = addrPtr->ai_next) {
-	    for (myaddrPtr = myaddrlist; myaddrPtr != NULL;
-		    myaddrPtr = myaddrPtr->ai_next) {
+		optlen = sizeof(int);
+		ret = getsockopt(sock, SOL_SOCKET, SO_ERROR,
+			(char *)&err, &optlen);
 		/*
-		 * No need to try combinations of local and remote addresses
-		 * of different families.
+		 * The error was not returned directly but should be
+		 * taken from WSA
 		 */
-
-		if (myaddrPtr->ai_family != addrPtr->ai_family) {
-		    continue;
+		if (ret == SOCKET_ERROR) {
+		    err = WSAGetLastError();
 		}
-
-		sock = socket(myaddrPtr->ai_family, SOCK_STREAM, 0);
-		if (sock == INVALID_SOCKET) {
-		    TclWinConvertError((DWORD) WSAGetLastError());
-		    continue;
-		}
-
 		/*
-		 * Win-NT has a misfeature that sockets are inherited in child
-		 * processes by default. Turn off the inherit bit.
+		 * Return error message
 		 */
+		if (err) {
+		    TclWinConvertError(err);
+		    Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(Tcl_GetErrno()), -1);
+		}
+	    }
+	}
+	return TCL_OK;
+    }
 
-		SetHandleInformation((HANDLE) sock, HANDLE_FLAG_INHERIT, 0);
+    if ((len > 1) && (optionName[1] == 'c') &&
+	    (strncmp(optionName, "-connecting", len) == 0)) {
 
-		/*
-		 * Set kernel space buffering
-		 */
+	Tcl_DStringAppend(dsPtr,
+		(statePtr->flags & TCP_ASYNC_PENDING)
+		? "1" : "0", -1);
+        return TCL_OK;
+    }
 
-		TclSockMinimumBuffers((void *) sock, TCP_BUFFER_SIZE);
+    if (interp != NULL && Tcl_GetVar(interp, SUPPRESS_RDNS_VAR, 0) != NULL) {
+	reverseDNS = NI_NUMERICHOST;
+    }
 
-		/*
-		 * Try to bind to a local port.
-		 */
+    if ((len == 0) || ((len > 1) && (optionName[1] == 'p') &&
+	    (strncmp(optionName, "-peername", len) == 0))) {
+	address peername;
+	socklen_t size = sizeof(peername);
 
-		if (bind(sock, myaddrPtr->ai_addr, myaddrPtr->ai_addrlen)
-			== SOCKET_ERROR) {
-		    TclWinConvertError((DWORD) WSAGetLastError());
-		    goto looperror;
-		}
-		/*
-		 * Set the socket into nonblocking mode if the connect should
-		 * be done in the background.
-		 */
-		if (async && ioctlsocket(sock, (long) FIONBIO, &flag)
-			== SOCKET_ERROR) {
-		    TclWinConvertError((DWORD) WSAGetLastError());
-		    goto looperror;
+	if ( (statePtr->flags & TCP_ASYNC_PENDING) ) {
+	    /*
+	     * In async connect output an empty string
+	     */
+	    if (len == 0) {
+		Tcl_DStringAppendElement(dsPtr, "-peername");
+		Tcl_DStringAppendElement(dsPtr, "");
+	    } else {
+		return TCL_OK;
+	    }
+	} else if ( getpeername(sock, (LPSOCKADDR) &(peername.sa), &size) == 0) {
+	    /*
+	     * Peername fetch succeeded - output list
+	     */
+	    if (len == 0) {
+		Tcl_DStringAppendElement(dsPtr, "-peername");
+		Tcl_DStringStartSublist(dsPtr);
+	    }
+
+	    getnameinfo(&(peername.sa), size, host, sizeof(host),
+		    NULL, 0, NI_NUMERICHOST);
+	    Tcl_DStringAppendElement(dsPtr, host);
+	    getnameinfo(&(peername.sa), size, host, sizeof(host),
+		    port, sizeof(port), reverseDNS | NI_NUMERICSERV);
+	    Tcl_DStringAppendElement(dsPtr, host);
+	    Tcl_DStringAppendElement(dsPtr, port);
+	    if (len == 0) {
+		Tcl_DStringEndSublist(dsPtr);
+	    } else {
+		return TCL_OK;
+	    }
+	} else {
+	    /*
+	     * getpeername failed - but if we were asked for all the options
+	     * (len==0), don't flag an error at that point because it could be
+	     * an fconfigure request on a server socket (such sockets have no
+	     * peer). {Copied from unix/tclUnixChan.c}
+	     */
+
+	    if (len) {
+		TclWinConvertError((DWORD) WSAGetLastError());
+		if (interp) {
+		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			    "can't get peername: %s",
+			    Tcl_PosixError(interp)));
 		}
+		return TCL_ERROR;
+	    }
+	}
+    }
 
-		/*
-		 * Attempt to connect to the remote socket.
-		 */
+    if ((len == 0) || ((len > 1) && (optionName[1] == 's') &&
+	    (strncmp(optionName, "-sockname", len) == 0))) {
+	TcpFdList *fds;
+	address sockname;
+	socklen_t size;
+	int found = 0;
 
-		if (connect(sock, addrPtr->ai_addr, addrPtr->ai_addrlen)
-			== SOCKET_ERROR) {
-		    TclWinConvertError((DWORD) WSAGetLastError());
-		    if (Tcl_GetErrno() != EAGAIN) {
-			goto looperror;
-		    }
+	if (len == 0) {
+	    Tcl_DStringAppendElement(dsPtr, "-sockname");
+	    Tcl_DStringStartSublist(dsPtr);
+	}
+	if ( (statePtr->flags & TCP_ASYNC_PENDING ) ) {
+	    /*
+	     * In async connect output an empty string
+	     */
+	     found = 1;
+	} else {
+	    for (fds = statePtr->sockets; fds != NULL; fds = fds->next) {
+		sock = fds->fd;
+		size = sizeof(sockname);
+		if (getsockname(sock, &(sockname.sa), &size) >= 0) {
+		    int flags = reverseDNS;
+
+		    found = 1;
+		    getnameinfo(&sockname.sa, size, host, sizeof(host),
+			    NULL, 0, NI_NUMERICHOST);
+		    Tcl_DStringAppendElement(dsPtr, host);
 
 		    /*
-		     * The connection is progressing in the background.
+		     * We don't want to resolve INADDR_ANY and sin6addr_any; they
+		     * can sometimes cause problems (and never have a name).
 		     */
-
-		    asyncConnect = 1;
-		}
-		goto connected;
-
-	    looperror:
-		if (sock != INVALID_SOCKET) {
-		    closesocket(sock);
-		    sock = INVALID_SOCKET;
+		    flags |= NI_NUMERICSERV;
+		    if (sockname.sa.sa_family == AF_INET) {
+			if (sockname.sa4.sin_addr.s_addr == INADDR_ANY) {
+			    flags |= NI_NUMERICHOST;
+			}
+		    } else if (sockname.sa.sa_family == AF_INET6) {
+			if ((IN6_ARE_ADDR_EQUAL(&sockname.sa6.sin6_addr,
+				    &in6addr_any)) ||
+				(IN6_IS_ADDR_V4MAPPED(&sockname.sa6.sin6_addr)
+				&& sockname.sa6.sin6_addr.s6_addr[12] == 0
+				&& sockname.sa6.sin6_addr.s6_addr[13] == 0
+				&& sockname.sa6.sin6_addr.s6_addr[14] == 0
+				&& sockname.sa6.sin6_addr.s6_addr[15] == 0)) {
+			    flags |= NI_NUMERICHOST;
+			}
+		    }
+		    getnameinfo(&sockname.sa, size, host, sizeof(host),
+			    port, sizeof(port), flags);
+		    Tcl_DStringAppendElement(dsPtr, host);
+		    Tcl_DStringAppendElement(dsPtr, port);
 		}
 	    }
 	}
-	goto error;
+	if (found) {
+	    if (len) {
+		return TCL_OK;
+	    }
+	    Tcl_DStringEndSublist(dsPtr);
+	} else {
+	    if (interp) {
+		TclWinConvertError((DWORD) WSAGetLastError());
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"can't get sockname: %s", Tcl_PosixError(interp)));
+	    }
+	    return TCL_ERROR;
+	}
+    }
 
-    connected:
-	/*
-	 * Add this socket to the global list of sockets.
-	 */
+#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
+    if (len == 0 || !strncmp(optionName, "-keepalive", len)) {
+	int optlen;
+	BOOL opt = FALSE;
 
-	infoPtr = NewSocketInfo(sock);
+	if (len == 0) {
+	    Tcl_DStringAppendElement(dsPtr, "-keepalive");
+	}
+	optlen = sizeof(BOOL);
+	getsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char *)&opt, &optlen);
+	if (opt) {
+	    Tcl_DStringAppendElement(dsPtr, "1");
+	} else {
+	    Tcl_DStringAppendElement(dsPtr, "0");
+	}
+	if (len > 0) {
+	    return TCL_OK;
+	}
+    }
 
-	/*
-	 * Set up the select mask for read/write events. If the connect
-	 * attempt has not completed, include connect events.
-	 */
+    if (len == 0 || !strncmp(optionName, "-nagle", len)) {
+	int optlen;
+	BOOL opt = FALSE;
 
-	infoPtr->selectEvents = FD_READ | FD_WRITE | FD_CLOSE;
-	if (asyncConnect) {
-	    infoPtr->flags |= SOCKET_ASYNC_CONNECT;
-	    infoPtr->selectEvents |= FD_CONNECT;
+	if (len == 0) {
+	    Tcl_DStringAppendElement(dsPtr, "-nagle");
+	}
+	optlen = sizeof(BOOL);
+	getsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (char *)&opt, &optlen);
+	if (opt) {
+	    Tcl_DStringAppendElement(dsPtr, "0");
+	} else {
+	    Tcl_DStringAppendElement(dsPtr, "1");
+	}
+	if (len > 0) {
+	    return TCL_OK;
 	}
     }
+#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/
 
-  error:
-    if (addrlist == NULL) {
-	freeaddrinfo(addrlist);
-    }
-    if (myaddrlist == NULL) {
-	freeaddrinfo(myaddrlist);
+    if (len > 0) {
+#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
+	return Tcl_BadChannelOption(interp, optionName,
+		"connecting peername sockname keepalive nagle");
+#else
+	return Tcl_BadChannelOption(interp, optionName, "connecting peername sockname");
+#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/
     }
 
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TcpWatchProc --
+ *
+ *	Informs the channel driver of the events that the generic channel code
+ *	wishes to receive on this socket.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	May cause the notifier to poll if any of the specified conditions are
+ *	already true.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+TcpWatchProc(
+    ClientData instanceData,	/* The socket state. */
+    int mask)			/* Events of interest; an OR-ed combination of
+				 * TCL_READABLE, TCL_WRITABLE and
+				 * TCL_EXCEPTION. */
+{
+    TcpState *statePtr = instanceData;
+
     /*
-     * Register for interest in events in the select mask. Note that this
-     * automatically places the socket into non-blocking mode.
+     * Update the watch events mask. Only if the socket is not a server
+     * socket. [Bug 557878]
      */
 
-    if (infoPtr != NULL) {
-	ioctlsocket(sock, (long) FIONBIO, &flag);
-	SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT,
-		(LPARAM) infoPtr);
+    if (!statePtr->acceptProc) {
+	statePtr->watchEvents = 0;
+	if (mask & TCL_READABLE) {
+	    statePtr->watchEvents |= (FD_READ|FD_CLOSE);
+	}
+	if (mask & TCL_WRITABLE) {
+	    statePtr->watchEvents |= (FD_WRITE|FD_CLOSE);
+	}
 
-	return infoPtr;
-    }
+	/*
+	 * If there are any conditions already set, then tell the notifier to
+	 * poll rather than block.
+	 */
 
-    if (interp != NULL) {
-        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		"couldn't open socket: %s",
-		(errorMsg ? errorMsg : Tcl_PosixError(interp))));
-    }
+	if (statePtr->readyEvents & statePtr->watchEvents) {
+	    Tcl_Time blockTime = { 0, 0 };
 
-    if (sock != INVALID_SOCKET) {
-	closesocket(sock);
+	    Tcl_SetMaxBlockTime(&blockTime);
+	}
     }
-    return NULL;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * WaitForSocketEvent --
+ * TcpGetHandleProc --
  *
- *	Waits until one of the specified events occurs on a socket.
+ *	Called from Tcl_GetChannelHandle to retrieve OS handles from inside a
+ *	TCP socket based channel.
  *
  * Results:
- *	Returns 1 on success or 0 on failure, with an error code in
- *	errorCodePtr.
+ *	Returns TCL_OK with the fd in handlePtr, or TCL_ERROR if there is no
+ *	handle for the specified direction.
  *
  * Side effects:
- *	Processes socket events off the system queue.
+ *	None.
  *
  *----------------------------------------------------------------------
  */
 
+	/* ARGSUSED */
 static int
-WaitForSocketEvent(
-    SocketInfo *infoPtr,	/* Information about this socket. */
-    int events,			/* Events to look for. */
-    int *errorCodePtr)		/* Where to store errors? */
+TcpGetHandleProc(
+    ClientData instanceData,	/* The socket state. */
+    int direction,		/* Not used. */
+    ClientData *handlePtr)	/* Where to store the handle. */
 {
-    int result = 1;
-    int oldMode;
-    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
+    TcpState *statePtr = instanceData;
 
+    *handlePtr = INT2PTR(statePtr->sockets->fd);
+    return TCL_OK;
+}
+
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TcpConnect --
+ *
+ *	This function opens a new socket in client mode.
+ *
+ *	This might be called in 3 circumstances:
+ *	-   By a regular socket command
+ *	-   By the event handler to continue an asynchroneous connect
+ *	-   By a blocking socket function (gets/puts) to terminate the
+ *	    connect synchroneously
+ *
+ * Results:
+ *      TCL_OK, if the socket was successfully connected or an asynchronous
+ *      connection is in progress. If an error occurs, TCL_ERROR is returned
+ *      and an error message is left in interp.
+ *
+ * Side effects:
+ *	Opens a socket.
+ *
+ * Remarks:
+ *	A single host name may resolve to more than one IP address, e.g. for
+ *	an IPv4/IPv6 dual stack host. For handling asyncronously connecting
+ *	sockets in the background for such hosts, this function can act as a
+ *	coroutine. On the first call, it sets up the control variables for the
+ *	two nested loops over the local and remote addresses. Once the first
+ *	connection attempt is in progress, it sets up itself as a writable
+ *	event handler for that socket, and returns. When the callback occurs,
+ *	control is transferred to the "reenter" label, right after the initial
+ *	return and the loops resume as if they had never been interrupted.
+ *	For syncronously connecting sockets, the loops work the usual way.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+TcpConnect(
+    Tcl_Interp *interp,		/* For error reporting; can be NULL. */
+    TcpState *statePtr)
+{
+    DWORD error;
     /*
-     * Be sure to disable event servicing so we are truly modal.
+     * We are started with async connect and the connect notification
+     * was not jet received
      */
+    int async_connect = statePtr->flags & TCP_ASYNC_CONNECT;
+    /* We were called by the event procedure and continue our loop */
+    int async_callback = statePtr->flags & TCP_ASYNC_PENDING;
+    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
 
-    oldMode = Tcl_SetServiceMode(TCL_SERVICE_NONE);
+    if (async_callback) {
+        goto reenter;
+    }
+
+    for (statePtr->addr = statePtr->addrlist; statePtr->addr != NULL;
+	 statePtr->addr = statePtr->addr->ai_next) {
+
+        for (statePtr->myaddr = statePtr->myaddrlist; statePtr->myaddr != NULL;
+	     statePtr->myaddr = statePtr->myaddr->ai_next) {
+
+	    /*
+	     * No need to try combinations of local and remote addresses
+	     * of different families.
+	     */
+
+	    if (statePtr->myaddr->ai_family != statePtr->addr->ai_family) {
+		continue;
+	    }
+
+            /*
+             * Close the socket if it is still open from the last unsuccessful
+             * iteration.
+             */
+	    if (statePtr->sockets->fd != INVALID_SOCKET) {
+		closesocket(statePtr->sockets->fd);
+	    }
+
+	    /* get statePtr lock */
+	    WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+
+	    /*
+	     * Reset last error from last try
+	     */
+	    statePtr->notifierConnectError = 0;
+	    Tcl_SetErrno(0);
+
+	    statePtr->sockets->fd = socket(statePtr->myaddr->ai_family, SOCK_STREAM, 0);
+
+	    /* Free list lock */
+	    SetEvent(tsdPtr->socketListLock);
+
+	    /* continue on socket creation error */
+	    if (statePtr->sockets->fd == INVALID_SOCKET) {
+		TclWinConvertError((DWORD) WSAGetLastError());
+		continue;
+	    }
+
+	    /*
+	     * Win-NT has a misfeature that sockets are inherited in child
+	     * processes by default. Turn off the inherit bit.
+	     */
+
+	    SetHandleInformation((HANDLE) statePtr->sockets->fd, HANDLE_FLAG_INHERIT, 0);
+
+	    /*
+	     * Set kernel space buffering
+	     */
+
+	    TclSockMinimumBuffers((void *) statePtr->sockets->fd, TCP_BUFFER_SIZE);
+
+	    /*
+	     * Try to bind to a local port.
+	     */
+
+	    if (bind(statePtr->sockets->fd, statePtr->myaddr->ai_addr,
+			statePtr->myaddr->ai_addrlen) == SOCKET_ERROR) {
+		TclWinConvertError((DWORD) WSAGetLastError());
+		continue;
+	    }
+	    /*
+	     * For asyncroneous connect set the socket in nonblocking mode
+	     * and activate connect notification
+	     */
+	    if (async_connect) {
+		TcpState *statePtr2;
+		int in_socket_list = 0;
+		/* get statePtr lock */
+		WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+
+		/*
+		 * Bugfig for 336441ed59 to not ignore notifications until the
+		 * infoPtr is in the list.
+		 * Check if my statePtr is already in the tsdPtr->socketList
+		 * It is set after this call by TcpThreadActionProc and is set
+		 * on a second round.
+		 *
+		 * If not, we buffer my statePtr in the tsd memory so it is not
+		 * lost by the event procedure
+		 */
+
+		for (statePtr2 = tsdPtr->socketList; statePtr2 != NULL;
+			statePtr2 = statePtr2->nextPtr) {
+		    if (statePtr2 == statePtr) {
+			in_socket_list = 1;
+			break;
+		    }
+		}
+		if (!in_socket_list) {
+		    tsdPtr->pendingTcpState = statePtr;
+		}
+		/*
+		 * Set connect mask to connect events
+		 * This is activated by a SOCKET_SELECT message to the notifier
+		 * thread.
+		 */
+		statePtr->selectEvents |= FD_CONNECT;
+
+		/*
+		 * Free list lock
+		 */
+		SetEvent(tsdPtr->socketListLock);
+
+    		/* activate accept notification */
+		SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT,
+			(LPARAM) statePtr);
+	    }
+
+	    /*
+	     * Attempt to connect to the remote socket.
+	     */
+
+	    connect(statePtr->sockets->fd, statePtr->addr->ai_addr,
+		    statePtr->addr->ai_addrlen);
+
+	    error = WSAGetLastError();
+	    TclWinConvertError(error);
+
+	    if (async_connect && error == WSAEWOULDBLOCK) {
+		/*
+		 * Asynchroneous connect
+		 */
+
+		/*
+		 * Remember that we jump back behind this next round
+		 */
+		statePtr->flags |= TCP_ASYNC_PENDING;
+		return TCL_OK;
+
+	    reenter:
+		/*
+		 * Re-entry point for async connect after connect event or
+		 * blocking operation
+		 *
+		 * Clear the reenter flag
+		 */
+		statePtr->flags &= ~(TCP_ASYNC_PENDING);
+		/* get statePtr lock */
+		WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+		/* Get signaled connect error */
+		TclWinConvertError((DWORD) statePtr->notifierConnectError);
+		/* Clear eventual connect flag */
+		statePtr->selectEvents &= ~(FD_CONNECT);
+		/* Free list lock */
+		SetEvent(tsdPtr->socketListLock);
+	    }
+
+	    /*
+	     * Clear the tsd socket list pointer if we did not wait for
+	     * the FD_CONNECT asyncroneously
+	     */
+	    tsdPtr->pendingTcpState = NULL;
 
+	    if (Tcl_GetErrno() == 0) {
+		goto out;
+	    }
+	}
+    }
+
+out:
     /*
-     * Reset WSAAsyncSelect so we have a fresh set of events pending.
+     * Socket connected or connection failed
      */
 
-    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) UNSELECT,
-	    (LPARAM) infoPtr);
-    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT,
-	    (LPARAM) infoPtr);
+    /*
+     * Async connect terminated
+     */
 
-    while (1) {
-	if (infoPtr->lastError) {
-	    *errorCodePtr = infoPtr->lastError;
-	    result = 0;
-	    break;
-	} else if (infoPtr->readyEvents & events) {
-	    break;
-	} else if (infoPtr->flags & SOCKET_ASYNC) {
-	    *errorCodePtr = EAGAIN;
-	    result = 0;
-	    break;
-	}
+    CLEAR_BITS(statePtr->flags, TCP_ASYNC_CONNECT);
 
+    if ( Tcl_GetErrno() == 0 ) {
 	/*
-	 * Wait until something happens.
+	 * Succesfully connected
 	 */
+	/*
+	 * Set up the select mask for read/write events.
+	 */
+	statePtr->selectEvents = FD_READ | FD_WRITE | FD_CLOSE;
 
-	WaitForSingleObject(tsdPtr->readyEvent, INFINITE);
-    }
+	/*
+	 * Register for interest in events in the select mask. Note that this
+	 * automatically places the socket into non-blocking mode.
+	 */
 
-    (void) Tcl_SetServiceMode(oldMode);
-    return result;
+	SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT,
+		    (LPARAM) statePtr);
+    } else {
+	/*
+	 * Connect failed
+	 */
+
+	/*
+	 * For async connect schedule a writable event to report the fail.
+	 */
+	if (async_callback) {
+	    /*
+	     * Set up the select mask for read/write events.
+	     */
+	    statePtr->selectEvents = FD_WRITE|FD_READ;
+	    /* get statePtr lock */
+	    WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+	    /* Signal ready readable and writable events */
+	    statePtr->readyEvents |= FD_WRITE | FD_READ;
+	    /* Flag error to event routine */
+	    statePtr->flags |= TCP_ASYNC_FAILED;
+	    /* Save connect error to be reported by 'fconfigure -error' */
+	    statePtr->connectError = Tcl_GetErrno();
+	    /* Free list lock */
+	    SetEvent(tsdPtr->socketListLock);
+	}
+	/*
+	 * Error message on syncroneous connect
+	 */
+	if (interp != NULL) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "couldn't open socket: %s", Tcl_PosixError(interp)));
+	}
+	return TCL_ERROR;
+    }
+    return TCL_OK;
 }
 
 /*
@@ -1480,39 +1903,75 @@ Tcl_OpenTcpClient(
     const char *host,		/* Host on which to open port. */
     const char *myaddr,		/* Client-side address */
     int myport,			/* Client-side port */
-    int async)			/* If nonzero, should connect client socket
-				 * asynchronously. */
+    int async)			/* If nonzero, attempt to do an asynchronous
+				 * connect. Otherwise we do a blocking
+				 * connect. */
 {
-    SocketInfo *infoPtr;
-    char channelName[16 + TCL_INTEGER_SPACE];
+    TcpState *statePtr;
+    const char *errorMsg = NULL;
+    struct addrinfo *addrlist = NULL, *myaddrlist = NULL;
+    char channelName[SOCK_CHAN_LENGTH];
 
     if (TclpHasSockets(interp) != TCL_OK) {
 	return NULL;
     }
 
     /*
-     * Create a new client socket and wrap it in a channel.
+     * Check that WinSock is initialized; do not call it if not, to prevent
+     * system crashes. This can happen at exit time if the exit handler for
+     * WinSock ran before other exit handlers that want to use sockets.
      */
 
-    infoPtr = CreateSocket(interp, port, host, 0, myaddr, myport, async);
-    if (infoPtr == NULL) {
+    if (!SocketsEnabled()) {
 	return NULL;
     }
 
-    sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t) infoPtr->sockets->fd);
+    /*
+     * Do the name lookups for the local and remote addresses.
+     */
 
-    infoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
-	    infoPtr, (TCL_READABLE | TCL_WRITABLE));
-    if (TCL_ERROR == Tcl_SetChannelOption(NULL, infoPtr->channel,
+    if (!TclCreateSocketAddress(interp, &addrlist, host, port, 0, &errorMsg)
+            || !TclCreateSocketAddress(interp, &myaddrlist, myaddr, myport, 1,
+                    &errorMsg)) {
+        if (addrlist != NULL) {
+            freeaddrinfo(addrlist);
+        }
+        if (interp != NULL) {
+            Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+                    "couldn't open socket: %s", errorMsg));
+        }
+        return NULL;
+    }
+
+    statePtr = NewSocketInfo(INVALID_SOCKET);
+    statePtr->addrlist = addrlist;
+    statePtr->myaddrlist = myaddrlist;
+    if (async) {
+	statePtr->flags |= TCP_ASYNC_CONNECT;
+    }
+
+    /*
+     * Create a new client socket and wrap it in a channel.
+     */
+    if (TcpConnect(interp, statePtr) != TCL_OK) {
+	TcpCloseProc(statePtr, NULL);
+	return NULL;
+    }
+
+    sprintf(channelName, SOCK_TEMPLATE, statePtr);
+
+    statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
+	    statePtr, (TCL_READABLE | TCL_WRITABLE));
+    if (TCL_ERROR == Tcl_SetChannelOption(NULL, statePtr->channel,
 	    "-translation", "auto crlf")) {
-	Tcl_Close(NULL, infoPtr->channel);
+	Tcl_Close(NULL, statePtr->channel);
 	return NULL;
-    } else if (TCL_ERROR == Tcl_SetChannelOption(NULL, infoPtr->channel,
+    } else if (TCL_ERROR == Tcl_SetChannelOption(NULL, statePtr->channel,
 	    "-eofchar", "")) {
-	Tcl_Close(NULL, infoPtr->channel);
+	Tcl_Close(NULL, statePtr->channel);
 	return NULL;
     }
-    return infoPtr->channel;
+    return statePtr->channel;
 }
 
 /*
@@ -1528,8 +1987,6 @@ Tcl_OpenTcpClient(
  * Side effects:
  *	None.
  *
- * NOTE: Code contributed by Mark Diekhans (markd@grizzly.com)
- *
  *----------------------------------------------------------------------
  */
 
@@ -1537,8 +1994,8 @@ Tcl_Channel
 Tcl_MakeTcpClientChannel(
     ClientData sock)		/* The socket to wrap up into a channel. */
 {
-    SocketInfo *infoPtr;
-    char channelName[16 + TCL_INTEGER_SPACE];
+    TcpState *statePtr;
+    char channelName[SOCK_CHAN_LENGTH];
     ThreadSpecificData *tsdPtr;
 
     if (TclpHasSockets(NULL) != TCL_OK) {
@@ -1553,20 +2010,20 @@ Tcl_MakeTcpClientChannel(
 
     TclSockMinimumBuffers(sock, TCP_BUFFER_SIZE);
 
-    infoPtr = NewSocketInfo((SOCKET) sock);
+    statePtr = NewSocketInfo((SOCKET) sock);
 
     /*
      * Start watching for read/write events on the socket.
      */
 
-    infoPtr->selectEvents = FD_READ | FD_CLOSE | FD_WRITE;
-    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM)SELECT, (LPARAM)infoPtr);
+    statePtr->selectEvents = FD_READ | FD_CLOSE | FD_WRITE;
+    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM)SELECT, (LPARAM)statePtr);
 
-    sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t) infoPtr->sockets->fd);
-    infoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
-	    infoPtr, (TCL_READABLE | TCL_WRITABLE));
-    Tcl_SetChannelOption(NULL, infoPtr->channel, "-translation", "auto crlf");
-    return infoPtr->channel;
+    sprintf(channelName, SOCK_TEMPLATE, statePtr);
+    statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
+	    statePtr, (TCL_READABLE | TCL_WRITABLE));
+    Tcl_SetChannelOption(NULL, statePtr->channel, "-translation", "auto crlf");
+    return statePtr->channel;
 }
 
 /*
@@ -1577,8 +2034,8 @@ Tcl_MakeTcpClientChannel(
  *	Opens a TCP server socket and creates a channel around it.
  *
  * Results:
- *	The channel or NULL if failed. An error message is returned in the
- *	interpreter on failure.
+ *	The channel or NULL if failed. If an error occurred, an error message
+ *	is left in the interp's result if interp is not NULL.
  *
  * Side effects:
  *	Opens a server socket and creates a new channel.
@@ -1590,72 +2047,203 @@ Tcl_Channel
 Tcl_OpenTcpServer(
     Tcl_Interp *interp,		/* For error reporting - may be NULL. */
     int port,			/* Port number to open. */
-    const char *host,		/* Name of local host. */
+    const char *myHost,		/* Name of local host. */
     Tcl_TcpAcceptProc *acceptProc,
 				/* Callback for accepting connections from new
 				 * clients. */
     ClientData acceptProcData)	/* Data for the callback. */
 {
-    SocketInfo *infoPtr;
-    char channelName[16 + TCL_INTEGER_SPACE];
+    SOCKET sock = INVALID_SOCKET;
+    unsigned short chosenport = 0;
+    struct addrinfo *addrlist = NULL;
+    struct addrinfo *addrPtr;	/* Socket address to listen on. */
+    TcpState *statePtr = NULL;	/* The returned value. */
+    char channelName[SOCK_CHAN_LENGTH];
+    u_long flag = 1;		/* Indicates nonblocking mode. */
+    const char *errorMsg = NULL;
+    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
 
     if (TclpHasSockets(interp) != TCL_OK) {
 	return NULL;
     }
 
     /*
-     * Create a new client socket and wrap it in a channel.
+     * Check that WinSock is initialized; do not call it if not, to prevent
+     * system crashes. This can happen at exit time if the exit handler for
+     * WinSock ran before other exit handlers that want to use sockets.
      */
 
-    infoPtr = CreateSocket(interp, port, host, 1, NULL, 0, 0);
-    if (infoPtr == NULL) {
+    if (!SocketsEnabled()) {
 	return NULL;
     }
 
-    infoPtr->acceptProc = acceptProc;
-    infoPtr->acceptProcData = acceptProcData;
+    /*
+     * Construct the addresses for each end of the socket.
+     */
+
+    if (!TclCreateSocketAddress(interp, &addrlist, myHost, port, 1, &errorMsg)) {
+	goto error;
+    }
+
+    for (addrPtr = addrlist; addrPtr != NULL; addrPtr = addrPtr->ai_next) {
+	sock = socket(addrPtr->ai_family, addrPtr->ai_socktype,
+                addrPtr->ai_protocol);
+	if (sock == INVALID_SOCKET) {
+	    TclWinConvertError((DWORD) WSAGetLastError());
+	    continue;
+	}
+
+	/*
+	 * Win-NT has a misfeature that sockets are inherited in child
+	 * processes by default. Turn off the inherit bit.
+	 */
 
-    sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t) infoPtr->sockets->fd);
+	SetHandleInformation((HANDLE) sock, HANDLE_FLAG_INHERIT, 0);
 
-    infoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
-	    infoPtr, 0);
-    if (Tcl_SetChannelOption(interp, infoPtr->channel, "-eofchar", "")
+	/*
+	 * Set kernel space buffering
+	 */
+
+	TclSockMinimumBuffers((void *)sock, TCP_BUFFER_SIZE);
+
+	/*
+	 * Make sure we use the same port when opening two server sockets
+	 * for IPv4 and IPv6.
+	 *
+	 * As sockaddr_in6 uses the same offset and size for the port
+	 * member as sockaddr_in, we can handle both through the IPv4 API.
+	 */
+
+	if (port == 0 && chosenport != 0) {
+	    ((struct sockaddr_in *) addrPtr->ai_addr)->sin_port =
+		htons(chosenport);
+	}
+
+	/*
+	 * Bind to the specified port. Note that we must not call
+	 * setsockopt with SO_REUSEADDR because Microsoft allows addresses
+	 * to be reused even if they are still in use.
+	 *
+	 * Bind should not be affected by the socket having already been
+	 * set into nonblocking mode. If there is trouble, this is one
+	 * place to look for bugs.
+	 */
+
+	if (bind(sock, addrPtr->ai_addr, addrPtr->ai_addrlen)
+	    == SOCKET_ERROR) {
+	    TclWinConvertError((DWORD) WSAGetLastError());
+	    closesocket(sock);
+	    continue;
+	}
+	if (port == 0 && chosenport == 0) {
+	    address sockname;
+	    socklen_t namelen = sizeof(sockname);
+
+	    /*
+	     * Synchronize port numbers when binding to port 0 of multiple
+	     * addresses.
+	     */
+
+	    if (getsockname(sock, &sockname.sa, &namelen) >= 0) {
+		chosenport = ntohs(sockname.sa4.sin_port);
+	    }
+	}
+
+	/*
+	 * Set the maximum number of pending connect requests to the max
+	 * value allowed on each platform (Win32 and Win32s may be
+	 * different, and there may be differences between TCP/IP stacks).
+	 */
+
+	if (listen(sock, SOMAXCONN) == SOCKET_ERROR) {
+	    TclWinConvertError((DWORD) WSAGetLastError());
+	    closesocket(sock);
+	    continue;
+	}
+
+	if (statePtr == NULL) {
+	    /*
+	     * Add this socket to the global list of sockets.
+	     */
+	    statePtr = NewSocketInfo(sock);
+	} else {
+	    AddSocketInfoFd( statePtr, sock );
+	}
+    }
+
+error:
+    if (addrlist != NULL) {
+	freeaddrinfo(addrlist);
+    }
+
+    if (statePtr != NULL) {
+
+	statePtr->acceptProc = acceptProc;
+	statePtr->acceptProcData = acceptProcData;
+	sprintf(channelName, SOCK_TEMPLATE, statePtr);
+	statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
+		statePtr, 0);
+	/*
+	 * Set up the select mask for connection request events.
+	 */
+
+	statePtr->selectEvents = FD_ACCEPT;
+
+	/*
+	 * Register for interest in events in the select mask. Note that this
+	 * automatically places the socket into non-blocking mode.
+	 */
+
+	ioctlsocket(sock, (long) FIONBIO, &flag);
+	SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT,
+		    (LPARAM) statePtr);
+	if (Tcl_SetChannelOption(interp, statePtr->channel, "-eofchar", "")
 	    == TCL_ERROR) {
-	Tcl_Close(NULL, infoPtr->channel);
-	return NULL;
+	    Tcl_Close(NULL, statePtr->channel);
+	    return NULL;
+	}
+	return statePtr->channel;
+    }
+
+    if (interp != NULL) {
+        Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"couldn't open socket: %s",
+		(errorMsg ? errorMsg : Tcl_PosixError(interp))));
     }
 
-    return infoPtr->channel;
+    if (sock != INVALID_SOCKET) {
+	closesocket(sock);
+    }
+    return NULL;
 }
 
 /*
  *----------------------------------------------------------------------
  *
  * TcpAccept --
- *
- *	Creates a channel for a newly accepted socket connection. This is 
- *	called by SocketEventProc and it in turns calls the registered 
- *	accept function.
+ *	Accept a TCP socket connection.	 This is called by the event loop.
  *
  * Results:
  *	None.
  *
  * Side effects:
- *	Invokes the accept proc which may invoke arbitrary Tcl code.
+ *	Creates a new connection socket. Calls the registered callback for the
+ *	connection acceptance mechanism.
  *
  *----------------------------------------------------------------------
  */
 
+	/* ARGSUSED */
 static void
 TcpAccept(
     TcpFdList *fds,	/* Server socket that accepted newSocket. */
     SOCKET newSocket,   /* Newly accepted socket. */
     address addr)       /* Address of new socket. */
 {
-    SocketInfo *newInfoPtr;
-    SocketInfo *infoPtr = fds->infoPtr;
+    TcpState *newInfoPtr;
+    TcpState *statePtr = fds->statePtr;
     int len = sizeof(addr);
-    char channelName[16 + TCL_INTEGER_SPACE];
+    char channelName[SOCK_CHAN_LENGTH];
     char host[NI_MAXHOST], port[NI_MAXSERV];
     ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
 
@@ -1680,7 +2268,7 @@ TcpAccept(
     SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT,
 	    (LPARAM) newInfoPtr);
 
-    sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t) newInfoPtr->sockets->fd);
+    sprintf(channelName, SOCK_TEMPLATE, newInfoPtr);
     newInfoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
 	    newInfoPtr, (TCL_READABLE | TCL_WRITABLE));
     if (Tcl_SetChannelOption(NULL, newInfoPtr->channel, "-translation",
@@ -1698,10 +2286,10 @@ TcpAccept(
      * Invoke the accept callback function.
      */
 
-    if (infoPtr->acceptProc != NULL) {
+    if (statePtr->acceptProc != NULL) {
 	getnameinfo(&(addr.sa), len, host, sizeof(host), port, sizeof(port),
                     NI_NUMERICHOST|NI_NUMERICSERV);
-	infoPtr->acceptProc(infoPtr->acceptProcData, newInfoPtr->channel,
+	statePtr->acceptProc(statePtr->acceptProcData, newInfoPtr->channel,
 			    host, atoi(port));
     }
 }
@@ -1709,666 +2297,672 @@ TcpAccept(
 /*
  *----------------------------------------------------------------------
  *
- * TcpInputProc --
+ * InitSockets --
  *
- *	This function is called by the generic IO level to read data from a
- *	socket based channel.
+ *	Registers the event window for the socket notifier code.
+ *
+ *	Assumes socketMutex is held.
  *
  * Results:
- *	The number of bytes read or -1 on error.
+ *	None.
  *
  * Side effects:
- *	Consumes input from the socket.
+ *	Register a new window class and creates a
+ *	window for use in asynchronous socket notification.
  *
  *----------------------------------------------------------------------
  */
 
-static int
-TcpInputProc(
-    ClientData instanceData,	/* The socket state. */
-    char *buf,			/* Where to store data. */
-    int toRead,			/* Maximum number of bytes to read. */
-    int *errorCodePtr)		/* Where to store error codes. */
+static void
+InitSockets(void)
 {
-    SocketInfo *infoPtr = instanceData;
-    int bytesRead;
-    DWORD error;
+    DWORD id;
     ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
 
-    *errorCodePtr = 0;
+    if (!initialized) {
+	initialized = 1;
+	TclCreateLateExitHandler(SocketExitHandler, NULL);
 
-    /*
-     * Check that WinSock is initialized; do not call it if not, to prevent
-     * system crashes. This can happen at exit time if the exit handler for
-     * WinSock ran before other exit handlers that want to use sockets.
-     */
+	/*
+	 * Create the async notification window with a new class. We must
+	 * create a new class to avoid a Windows 95 bug that causes us to get
+	 * the wrong message number for socket events if the message window is
+	 * a subclass of a static control.
+	 */
 
-    if (!SocketsEnabled()) {
-	*errorCodePtr = EFAULT;
-	return -1;
+	windowClass.style = 0;
+	windowClass.cbClsExtra = 0;
+	windowClass.cbWndExtra = 0;
+	windowClass.hInstance = TclWinGetTclInstance();
+	windowClass.hbrBackground = NULL;
+	windowClass.lpszMenuName = NULL;
+	windowClass.lpszClassName = classname;
+	windowClass.lpfnWndProc = SocketProc;
+	windowClass.hIcon = NULL;
+	windowClass.hCursor = NULL;
+
+	if (!RegisterClass(&windowClass)) {
+	    TclWinConvertError(GetLastError());
+	    goto initFailure;
+	}
     }
 
     /*
-     * First check to see if EOF was already detected, to prevent calling the
-     * socket stack after the first time EOF is detected.
+     * Check for per-thread initialization.
      */
 
-    if (infoPtr->flags & SOCKET_EOF) {
-	return 0;
+    if (tsdPtr != NULL) {
+	return;
     }
 
     /*
-     * Check to see if the socket is connected before trying to read.
+     * OK, this thread has never done anything with sockets before.  Construct
+     * a worker thread to handle asynchronous events related to sockets
+     * assigned to _this_ thread.
      */
 
-    if ((infoPtr->flags & SOCKET_ASYNC_CONNECT)
-	    && !WaitForSocketEvent(infoPtr, FD_CONNECT, errorCodePtr)) {
-	return -1;
+    tsdPtr = TCL_TSD_INIT(&dataKey);
+    tsdPtr->pendingTcpState = NULL;
+    tsdPtr->socketList = NULL;
+    tsdPtr->hwnd       = NULL;
+    tsdPtr->threadId   = Tcl_GetCurrentThread();
+    tsdPtr->readyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
+    if (tsdPtr->readyEvent == NULL) {
+	goto initFailure;
+    }
+    tsdPtr->socketListLock = CreateEvent(NULL, FALSE, TRUE, NULL);
+    if (tsdPtr->socketListLock == NULL) {
+	goto initFailure;
+    }
+    tsdPtr->socketThread = CreateThread(NULL, 256, SocketThread, tsdPtr, 0,
+	    &id);
+    if (tsdPtr->socketThread == NULL) {
+	goto initFailure;
     }
 
+    SetThreadPriority(tsdPtr->socketThread, THREAD_PRIORITY_HIGHEST);
+
     /*
-     * No EOF, and it is connected, so try to read more from the socket. Note
-     * that we clear the FD_READ bit because read events are level triggered
-     * so a new event will be generated if there is still data available to be
-     * read. We have to simulate blocking behavior here since we are always
-     * using non-blocking sockets.
+     * Wait for the thread to signal when the window has been created and if
+     * it is ready to go.
      */
 
-    while (1) {
-	SendMessage(tsdPtr->hwnd, SOCKET_SELECT,
-		(WPARAM) UNSELECT, (LPARAM) infoPtr);
-	/* single fd operation: this proc is only called for a connected socket. */
-	bytesRead = recv(infoPtr->sockets->fd, buf, toRead, 0);
-	infoPtr->readyEvents &= ~(FD_READ);
-
-	/*
-	 * Check for end-of-file condition or successful read.
-	 */
-
-	if (bytesRead == 0) {
-	    infoPtr->flags |= SOCKET_EOF;
-	}
-	if (bytesRead != SOCKET_ERROR) {
-	    break;
-	}
-
-	/*
-	 * If an error occurs after the FD_CLOSE has arrived, then ignore the
-	 * error and report an EOF.
-	 */
-
-	if (infoPtr->readyEvents & FD_CLOSE) {
-	    infoPtr->flags |= SOCKET_EOF;
-	    bytesRead = 0;
-	    break;
-	}
-
-	error = WSAGetLastError();
-
-	/*
-	 * If an RST comes, then ignore the error and report an EOF just like
-	 * on unix.
-	 */
-
-	if (error == WSAECONNRESET) {
-	    infoPtr->flags |= SOCKET_EOF;
-	    bytesRead = 0;
-	    break;
-	}
-
-	/*
-	 * Check for error condition or underflow in non-blocking case.
-	 */
-
-	if ((infoPtr->flags & SOCKET_ASYNC) || (error != WSAEWOULDBLOCK)) {
-	    TclWinConvertError(error);
-	    *errorCodePtr = Tcl_GetErrno();
-	    bytesRead = -1;
-	    break;
-	}
-
-	/*
-	 * In the blocking case, wait until the file becomes readable or
-	 * closed and try again.
-	 */
+    WaitForSingleObject(tsdPtr->readyEvent, INFINITE);
 
-	if (!WaitForSocketEvent(infoPtr, FD_READ|FD_CLOSE, errorCodePtr)) {
-	    bytesRead = -1;
-	    break;
-	}
+    if (tsdPtr->hwnd == NULL) {
+	goto initFailure;	/* Trouble creating the window. */
     }
 
-    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM)SELECT, (LPARAM)infoPtr);
+    Tcl_CreateEventSource(SocketSetupProc, SocketCheckProc, NULL);
+    return;
 
-    return bytesRead;
+  initFailure:
+    TclpFinalizeSockets();
+    initialized = -1;
+    return;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TcpOutputProc --
+ * SocketsEnabled --
  *
- *	This function is called by the generic IO level to write data to a
- *	socket based channel.
+ *	Check that the WinSock was successfully initialized.
+ *
+ * Warning:
+ *	This check was useful in times of Windows98 where WinSock may
+ *	not be available. This is not the case any more.
+ *	This function may be removed with TCL 9.0
  *
  * Results:
- *	The number of bytes written or -1 on failure.
+ *	1 if it is.
  *
  * Side effects:
- *	Produces output on the socket.
+ *	None.
  *
  *----------------------------------------------------------------------
  */
 
+    /* ARGSUSED */
 static int
-TcpOutputProc(
-    ClientData instanceData,	/* The socket state. */
-    const char *buf,		/* Where to get data. */
-    int toWrite,		/* Maximum number of bytes to write. */
-    int *errorCodePtr)		/* Where to store error codes. */
+SocketsEnabled(void)
 {
-    SocketInfo *infoPtr = instanceData;
-    int bytesWritten;
-    DWORD error;
-    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
+    int enabled;
 
-    *errorCodePtr = 0;
+    Tcl_MutexLock(&socketMutex);
+    enabled = (initialized == 1);
+    Tcl_MutexUnlock(&socketMutex);
+    return enabled;
+}
 
-    /*
-     * Check that WinSock is initialized; do not call it if not, to prevent
-     * system crashes. This can happen at exit time if the exit handler for
-     * WinSock ran before other exit handlers that want to use sockets.
-     */
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * SocketExitHandler --
+ *
+ *	Callback invoked during exit clean up to delete the socket
+ *	communication window.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
 
-    if (!SocketsEnabled()) {
-	*errorCodePtr = EFAULT;
-	return -1;
-    }
+    /* ARGSUSED */
+static void
+SocketExitHandler(
+    ClientData clientData)		/* Not used. */
+{
+    Tcl_MutexLock(&socketMutex);
 
     /*
-     * Check to see if the socket is connected before trying to write.
+     * Make sure the socket event handling window is cleaned-up for, at
+     * most, this thread.
      */
 
-    if ((infoPtr->flags & SOCKET_ASYNC_CONNECT)
-	    && !WaitForSocketEvent(infoPtr, FD_CONNECT, errorCodePtr)) {
-	return -1;
-    }
-
-    while (1) {
-	SendMessage(tsdPtr->hwnd, SOCKET_SELECT,
-		(WPARAM) UNSELECT, (LPARAM) infoPtr);
-
-	/* single fd operation: this proc is only called for a connected socket. */
-	bytesWritten = send(infoPtr->sockets->fd, buf, toWrite, 0);
-	if (bytesWritten != SOCKET_ERROR) {
-	    /*
-	     * Since Windows won't generate a new write event until we hit an
-	     * overflow condition, we need to force the event loop to poll
-	     * until the condition changes.
-	     */
-
-	    if (infoPtr->watchEvents & FD_WRITE) {
-		Tcl_Time blockTime = { 0, 0 };
-		Tcl_SetMaxBlockTime(&blockTime);
-	    }
-	    break;
-	}
-
-	/*
-	 * Check for error condition or overflow. In the event of overflow, we
-	 * need to clear the FD_WRITE flag so we can detect the next writable
-	 * event. Note that Windows only sends a new writable event after a
-	 * send fails with WSAEWOULDBLOCK.
-	 */
+    TclpFinalizeSockets();
+    UnregisterClass(classname, TclWinGetTclInstance());
+    initialized = 0;
+    Tcl_MutexUnlock(&socketMutex);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * SocketSetupProc --
+ *
+ *	This function is invoked before Tcl_DoOneEvent blocks waiting for an
+ *	event.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Adjusts the block time if needed.
+ *
+ *----------------------------------------------------------------------
+ */
 
-	error = WSAGetLastError();
-	if (error == WSAEWOULDBLOCK) {
-	    infoPtr->readyEvents &= ~(FD_WRITE);
-	    if (infoPtr->flags & SOCKET_ASYNC) {
-		*errorCodePtr = EAGAIN;
-		bytesWritten = -1;
-		break;
-	    }
-	} else {
-	    TclWinConvertError(error);
-	    *errorCodePtr = Tcl_GetErrno();
-	    bytesWritten = -1;
-	    break;
-	}
+void
+SocketSetupProc(
+    ClientData data,		/* Not used. */
+    int flags)			/* Event flags as passed to Tcl_DoOneEvent. */
+{
+    TcpState *statePtr;
+    Tcl_Time blockTime = { 0, 0 };
+    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
 
-	/*
-	 * In the blocking case, wait until the file becomes writable or
-	 * closed and try again.
-	 */
+    if (!(flags & TCL_FILE_EVENTS)) {
+	return;
+    }
 
-	if (!WaitForSocketEvent(infoPtr, FD_WRITE|FD_CLOSE, errorCodePtr)) {
-	    bytesWritten = -1;
+    /*
+     * Check to see if there is a ready socket.	 If so, poll.
+     */
+    WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+    for (statePtr = tsdPtr->socketList; statePtr != NULL;
+	    statePtr = statePtr->nextPtr) {
+	if (statePtr->readyEvents &
+	    (statePtr->watchEvents | FD_CONNECT | FD_ACCEPT)
+	) {
+	    Tcl_SetMaxBlockTime(&blockTime);
 	    break;
 	}
     }
-
-    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM)SELECT, (LPARAM)infoPtr);
-
-    return bytesWritten;
+    SetEvent(tsdPtr->socketListLock);
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TcpSetOptionProc --
+ * SocketCheckProc --
  *
- *	Sets Tcp channel specific options.
+ *	This function is called by Tcl_DoOneEvent to check the socket event
+ *	source for events.
  *
  * Results:
- *	None, unless an error happens.
+ *	None.
  *
  * Side effects:
- *	Changes attributes of the socket at the system level.
+ *	May queue an event.
  *
  *----------------------------------------------------------------------
  */
 
-static int
-TcpSetOptionProc(
-    ClientData instanceData,	/* Socket state. */
-    Tcl_Interp *interp,		/* For error reporting - can be NULL. */
-    const char *optionName,	/* Name of the option to set. */
-    const char *value)		/* New value for option. */
+static void
+SocketCheckProc(
+    ClientData data,		/* Not used. */
+    int flags)			/* Event flags as passed to Tcl_DoOneEvent. */
 {
-#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
-    SocketInfo *infoPtr = instanceData;
-    SOCKET sock;
-#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/
-
-    /*
-     * Check that WinSock is initialized; do not call it if not, to prevent
-     * system crashes. This can happen at exit time if the exit handler for
-     * WinSock ran before other exit handlers that want to use sockets.
-     */
+    TcpState *statePtr;
+    SocketEvent *evPtr;
+    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
 
-    if (!SocketsEnabled()) {
-	if (interp) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "winsock is not initialized", -1));
-	}
-	return TCL_ERROR;
+    if (!(flags & TCL_FILE_EVENTS)) {
+	return;
     }
 
-#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
-    #error "TCL_FEATURE_KEEPALIVE_NAGLE not reviewed for whether to treat infoPtr->sockets as single fd or list"
-    sock = infoPtr->sockets->fd;
-
-    if (!strcasecmp(optionName, "-keepalive")) {
-	BOOL val = FALSE;
-	int boolVar, rtn;
-
-	if (Tcl_GetBoolean(interp, value, &boolVar) != TCL_OK) {
-	    return TCL_ERROR;
-	}
-	if (boolVar) {
-	    val = TRUE;
-	}
-	rtn = setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
-		(const char *) &val, sizeof(BOOL));
-	if (rtn != 0) {
-	    TclWinConvertError(WSAGetLastError());
-	    if (interp) {
-		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-			"couldn't set socket option: %s",
-			Tcl_PosixError(interp)));
-	    }
-	    return TCL_ERROR;
-	}
-	return TCL_OK;
-    } else if (!strcasecmp(optionName, "-nagle")) {
-	BOOL val = FALSE;
-	int boolVar, rtn;
+    /*
+     * Queue events for any ready sockets that don't already have events
+     * queued (caused by persistent states that won't generate WinSock
+     * events).
+     */
 
-	if (Tcl_GetBoolean(interp, value, &boolVar) != TCL_OK) {
-	    return TCL_ERROR;
-	}
-	if (!boolVar) {
-	    val = TRUE;
-	}
-	rtn = setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
-		(const char *) &val, sizeof(BOOL));
-	if (rtn != 0) {
-	    TclWinConvertError(WSAGetLastError());
-	    if (interp) {
-		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-			"couldn't set socket option: %s",
-			Tcl_PosixError(interp)));
-	    }
-	    return TCL_ERROR;
+    WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+    for (statePtr = tsdPtr->socketList; statePtr != NULL;
+	    statePtr = statePtr->nextPtr) {
+	if ((statePtr->readyEvents &
+		(statePtr->watchEvents | FD_CONNECT | FD_ACCEPT))
+	    && !(statePtr->flags & SOCKET_PENDING)
+	) {
+	    statePtr->flags |= SOCKET_PENDING;
+	    evPtr = ckalloc(sizeof(SocketEvent));
+	    evPtr->header.proc = SocketEventProc;
+	    evPtr->socket = statePtr->sockets->fd;
+	    Tcl_QueueEvent((Tcl_Event *) evPtr, TCL_QUEUE_TAIL);
 	}
-	return TCL_OK;
     }
-
-    return Tcl_BadChannelOption(interp, optionName, "keepalive nagle");
-#else
-    return Tcl_BadChannelOption(interp, optionName, "");
-#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/
+    SetEvent(tsdPtr->socketListLock);
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TcpGetOptionProc --
- *
- *	Computes an option value for a TCP socket based channel, or a list of
- *	all options and their values.
+ * SocketEventProc --
  *
- *	Note: This code is based on code contributed by John Haxby.
+ *	This function is called by Tcl_ServiceEvent when a socket event
+ *	reaches the front of the event queue. This function is responsible for
+ *	notifying the generic channel code.
  *
  * Results:
- *	A standard Tcl result. The value of the specified option or a list of
- *	all options and their values is returned in the supplied DString.
+ *	Returns 1 if the event was handled, meaning it should be removed from
+ *	the queue. Returns 0 if the event was not handled, meaning it should
+ *	stay on the queue. The only time the event isn't handled is if the
+ *	TCL_FILE_EVENTS flag bit isn't set.
  *
  * Side effects:
- *	None.
+ *	Whatever the channel callback functions do.
  *
  *----------------------------------------------------------------------
  */
 
 static int
-TcpGetOptionProc(
-    ClientData instanceData,	/* Socket state. */
-    Tcl_Interp *interp,		/* For error reporting - can be NULL */
-    const char *optionName,	/* Name of the option to retrieve the value
-				 * for, or NULL to get all options and their
-				 * values. */
-    Tcl_DString *dsPtr)		/* Where to store the computed value;
-				 * initialized by caller. */
+SocketEventProc(
+    Tcl_Event *evPtr,		/* Event to service. */
+    int flags)			/* Flags that indicate what events to handle,
+				 * such as TCL_FILE_EVENTS. */
 {
-    SocketInfo *infoPtr = instanceData;
-    char host[NI_MAXHOST], port[NI_MAXSERV];
-    SOCKET sock;
-    size_t len = 0;
-    int reverseDNS = 0;
-#define SUPPRESS_RDNS_VAR "::tcl::unsupported::noReverseDNS"
+    TcpState *statePtr;
+    SocketEvent *eventPtr = (SocketEvent *) evPtr;
+    int mask = 0, events;
+    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+    TcpFdList *fds;
+    SOCKET newSocket;
+    address addr;
+    int len;
+
+    if (!(flags & TCL_FILE_EVENTS)) {
+	return 0;
+    }
 
     /*
-     * Check that WinSock is initialized; do not call it if not, to prevent
-     * system crashes. This can happen at exit time if the exit handler for
-     * WinSock ran before other exit handlers that want to use sockets.
+     * Find the specified socket on the socket list.
      */
 
-    if (!SocketsEnabled()) {
-	if (interp) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "winsock is not initialized", -1));
+    WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+    for (statePtr = tsdPtr->socketList; statePtr != NULL;
+	    statePtr = statePtr->nextPtr) {
+	if (statePtr->sockets->fd == eventPtr->socket) {
+	    break;
 	}
-	return TCL_ERROR;
     }
 
-    sock = infoPtr->sockets->fd;
-    if (optionName != NULL) {
-	len = strlen(optionName);
+    /*
+     * Discard events that have gone stale.
+     */
+
+    if (!statePtr) {
+        SetEvent(tsdPtr->socketListLock);
+	return 1;
     }
 
-    if ((len > 1) && (optionName[1] == 'e') &&
-	    (strncmp(optionName, "-error", len) == 0)) {
-	int optlen;
-	DWORD err;
-	int ret;
+    /*
+     * Clear flag that (this) event is pending
+     */
 
-	optlen = sizeof(int);
-	ret = TclWinGetSockOpt(sock, SOL_SOCKET, SO_ERROR,
-		(char *)&err, &optlen);
-	if (ret == SOCKET_ERROR) {
-	    err = WSAGetLastError();
-	}
-	if (err) {
-	    TclWinConvertError(err);
-	    Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(Tcl_GetErrno()), -1);
-	}
-	return TCL_OK;
-    }
+    statePtr->flags &= ~SOCKET_PENDING;
 
-    if (interp != NULL && Tcl_GetVar(interp, SUPPRESS_RDNS_VAR, 0) != NULL) {
-	reverseDNS = NI_NUMERICHOST;
-    }
+    /*
+     * Continue async connect if pending and ready
+     */
 
-    if ((len == 0) || ((len > 1) && (optionName[1] == 'p') &&
-	    (strncmp(optionName, "-peername", len) == 0))) {
-	address peername;
-	socklen_t size = sizeof(peername);
+    if ( statePtr->readyEvents & FD_CONNECT ) {
+	if ( statePtr->flags & TCP_ASYNC_PENDING ) {
 
-	if (getpeername(sock, (LPSOCKADDR) &(peername.sa), &size) == 0) {
-	    if (len == 0) {
-		Tcl_DStringAppendElement(dsPtr, "-peername");
-		Tcl_DStringStartSublist(dsPtr);
-	    }
+	    /*
+	     * Do one step and save eventual connect error
+	     */
+
+	    SetEvent(tsdPtr->socketListLock);
+	    WaitForConnect(statePtr,NULL);
 
-	    getnameinfo(&(peername.sa), size, host, sizeof(host),
-		    NULL, 0, NI_NUMERICHOST);
-	    Tcl_DStringAppendElement(dsPtr, host);
-	    getnameinfo(&(peername.sa), size, host, sizeof(host),
-		    port, sizeof(port), reverseDNS | NI_NUMERICSERV);
-	    Tcl_DStringAppendElement(dsPtr, host);
-	    Tcl_DStringAppendElement(dsPtr, port);
-	    if (len == 0) {
-		Tcl_DStringEndSublist(dsPtr);
-	    } else {
-		return TCL_OK;
-	    }
 	} else {
+
 	    /*
-	     * getpeername failed - but if we were asked for all the options
-	     * (len==0), don't flag an error at that point because it could be
-	     * an fconfigure request on a server socket (such sockets have no
-	     * peer). {Copied from unix/tclUnixChan.c}
+	     * No async connect reenter pending. Just clear event.
 	     */
 
-	    if (len) {
-		TclWinConvertError((DWORD) WSAGetLastError());
-		if (interp) {
-		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-			    "can't get peername: %s",
-			    Tcl_PosixError(interp)));
-		}
-		return TCL_ERROR;
-	    }
+	    statePtr->readyEvents &= ~(FD_CONNECT);
+	    SetEvent(tsdPtr->socketListLock);
 	}
+	return 1;
     }
 
-    if ((len == 0) || ((len > 1) && (optionName[1] == 's') &&
-	    (strncmp(optionName, "-sockname", len) == 0))) {
-	TcpFdList *fds;
-	address sockname;
-	socklen_t size;
-	int found = 0;
+    /*
+     * Handle connection requests directly.
+     */
+    if (statePtr->readyEvents & FD_ACCEPT) {
+	for (fds = statePtr->sockets; fds != NULL; fds = fds->next) {
 
-	if (len == 0) {
-	    Tcl_DStringAppendElement(dsPtr, "-sockname");
-	    Tcl_DStringStartSublist(dsPtr);
-	}
-	for (fds = infoPtr->sockets; fds != NULL; fds = fds->next) {
-	    sock = fds->fd;
-	    size = sizeof(sockname);
-	    if (getsockname(sock, &(sockname.sa), &size) >= 0) {
-		int flags = reverseDNS;
+	    /*
+	    * Accept the incoming connection request.
+	    */
+	    len = sizeof(address);
 
-		found = 1;
-		getnameinfo(&sockname.sa, size, host, sizeof(host),
-			NULL, 0, NI_NUMERICHOST);
-		Tcl_DStringAppendElement(dsPtr, host);
+	    newSocket = accept(fds->fd, &(addr.sa), &len);
 
-		/*
-		 * We don't want to resolve INADDR_ANY and sin6addr_any; they
-		 * can sometimes cause problems (and never have a name).
-		 */
-		flags |= NI_NUMERICSERV;
-		if (sockname.sa.sa_family == AF_INET) {
-		    if (sockname.sa4.sin_addr.s_addr == INADDR_ANY) {
-			flags |= NI_NUMERICHOST;
-		    }
-		} else if (sockname.sa.sa_family == AF_INET6) {
-		    if ((IN6_ARE_ADDR_EQUAL(&sockname.sa6.sin6_addr,
-				&in6addr_any)) ||
-			    (IN6_IS_ADDR_V4MAPPED(&sockname.sa6.sin6_addr)
-			    && sockname.sa6.sin6_addr.s6_addr[12] == 0
-			    && sockname.sa6.sin6_addr.s6_addr[13] == 0
-			    && sockname.sa6.sin6_addr.s6_addr[14] == 0
-			    && sockname.sa6.sin6_addr.s6_addr[15] == 0)) {
-			flags |= NI_NUMERICHOST;
-		    }
-		}
-		getnameinfo(&sockname.sa, size, host, sizeof(host),
-			port, sizeof(port), flags);
-		Tcl_DStringAppendElement(dsPtr, host);
-		Tcl_DStringAppendElement(dsPtr, port);
-	    }
-	}
-	if (found) {
-	    if (len == 0) {
-		Tcl_DStringEndSublist(dsPtr);
-	    } else {
-		return TCL_OK;
+	    /* On Tcl server sockets with multiple OS fds we loop over the fds trying
+	     * an accept() on each, so we expect INVALID_SOCKET.  There are also other
+	     * network stack conditions that can result in FD_ACCEPT but a subsequent
+	     * failure on accept() by the time we get around to it.
+	     * Access to sockets (acceptEventCount, readyEvents) in socketList
+	     * is still protected by the lock (prevents reintroduction of
+	     * SF Tcl Bug 3056775.
+	     */
+
+	    if (newSocket == INVALID_SOCKET) {
+		/* int err = WSAGetLastError(); */
+		continue;
 	    }
-	} else {
-	    if (interp) {
-		TclWinConvertError((DWORD) WSAGetLastError());
-		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-			"can't get sockname: %s", Tcl_PosixError(interp)));
+
+	    /*
+	     * It is possible that more than one FD_ACCEPT has been sent, so an extra
+	     * count must be kept. Decrement the count, and reset the readyEvent bit
+	     * if the count is no longer > 0.
+	     */
+	    statePtr->acceptEventCount--;
+
+	    if (statePtr->acceptEventCount <= 0) {
+		statePtr->readyEvents &= ~(FD_ACCEPT);
 	    }
-	    return TCL_ERROR;
-	}
-    }
 
-#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
-    if (len == 0 || !strncmp(optionName, "-keepalive", len)) {
-	int optlen;
-	BOOL opt = FALSE;
+	    SetEvent(tsdPtr->socketListLock);
 
-	if (len == 0) {
-	    Tcl_DStringAppendElement(dsPtr, "-keepalive");
-	}
-	optlen = sizeof(BOOL);
-	getsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char *)&opt, &optlen);
-	if (opt) {
-	    Tcl_DStringAppendElement(dsPtr, "1");
-	} else {
-	    Tcl_DStringAppendElement(dsPtr, "0");
-	}
-	if (len > 0) {
-	    return TCL_OK;
+	    /* Caution: TcpAccept() has the side-effect of evaluating the server
+	     * accept script (via AcceptCallbackProc() in tclIOCmd.c), which can
+	     * close the server socket and invalidate statePtr and fds.
+	     * If TcpAccept() accepts a socket we must return immediately and let
+	     * SocketCheckProc queue additional FD_ACCEPT events.
+	     */
+	    TcpAccept(fds, newSocket, addr);
+	    return 1;
 	}
+
+	/* Loop terminated with no sockets accepted; clear the ready mask so
+	 * we can detect the next connection request. Note that connection
+	 * requests are level triggered, so if there is a request already
+	 * pending, a new event will be generated.
+	 */
+	statePtr->acceptEventCount = 0;
+	statePtr->readyEvents &= ~(FD_ACCEPT);
+
+	SetEvent(tsdPtr->socketListLock);
+	return 1;
     }
 
-    if (len == 0 || !strncmp(optionName, "-nagle", len)) {
-	int optlen;
-	BOOL opt = FALSE;
+    SetEvent(tsdPtr->socketListLock);
+
+    /*
+     * Mask off unwanted events and compute the read/write mask so we can
+     * notify the channel.
+     */
+
+    events = statePtr->readyEvents & statePtr->watchEvents;
+
+    if (events & FD_CLOSE) {
+	/*
+	 * If the socket was closed and the channel is still interested in
+	 * read events, then we need to ensure that we keep polling for this
+	 * event until someone does something with the channel. Note that we
+	 * do this before calling Tcl_NotifyChannel so we don't have to watch
+	 * out for the channel being deleted out from under us. This may cause
+	 * a redundant trip through the event loop, but it's simpler than
+	 * trying to do unwind protection.
+	 */
+
+	Tcl_Time blockTime = { 0, 0 };
+
+	Tcl_SetMaxBlockTime(&blockTime);
+	mask |= TCL_READABLE|TCL_WRITABLE;
+    } else if (events & FD_READ) {
+
+	/*
+	 * Throw the readable event if an async connect failed.
+	 */
+
+	if ( statePtr->flags & TCP_ASYNC_FAILED ) {
+
+	    mask |= TCL_READABLE;
 
-	if (len == 0) {
-	    Tcl_DStringAppendElement(dsPtr, "-nagle");
-	}
-	optlen = sizeof(BOOL);
-	getsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (char *)&opt, &optlen);
-	if (opt) {
-	    Tcl_DStringAppendElement(dsPtr, "0");
 	} else {
-	    Tcl_DStringAppendElement(dsPtr, "1");
-	}
-	if (len > 0) {
-	    return TCL_OK;
+	    fd_set readFds;
+	    struct timeval timeout;
+
+	    /*
+	     * We must check to see if data is really available, since someone
+	     * could have consumed the data in the meantime. Turn off async
+	     * notification so select will work correctly. If the socket is
+	     * still readable, notify the channel driver, otherwise reset the
+	     * async select handler and keep waiting.
+	     */
+
+	    SendMessage(tsdPtr->hwnd, SOCKET_SELECT,
+		    (WPARAM) UNSELECT, (LPARAM) statePtr);
+
+	    FD_ZERO(&readFds);
+	    FD_SET(statePtr->sockets->fd, &readFds);
+	    timeout.tv_usec = 0;
+	    timeout.tv_sec = 0;
+
+	    if (select(0, &readFds, NULL, NULL, &timeout) != 0) {
+		mask |= TCL_READABLE;
+	    } else {
+		statePtr->readyEvents &= ~(FD_READ);
+		SendMessage(tsdPtr->hwnd, SOCKET_SELECT,
+			(WPARAM) SELECT, (LPARAM) statePtr);
+	    }
 	}
     }
-#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/
 
-    if (len > 0) {
-#ifdef TCL_FEATURE_KEEPALIVE_NAGLE
-	return Tcl_BadChannelOption(interp, optionName,
-		"peername sockname keepalive nagle");
-#else
-	return Tcl_BadChannelOption(interp, optionName, "peername sockname");
-#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/
+    /*
+     * writable event
+     */
+
+    if (events & FD_WRITE) {
+	mask |= TCL_WRITABLE;
     }
 
-    return TCL_OK;
+    /*
+     * Call registered event procedures
+     */
+
+    if (mask) {
+	Tcl_NotifyChannel(statePtr->channel, mask);
+    }
+    return 1;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TcpWatchProc --
+ * AddSocketInfoFd --
  *
- *	Informs the channel driver of the events that the generic channel code
- *	wishes to receive on this socket.
+ *	This function adds a SOCKET file descriptor to the 'sockets' linked
+ *	list of a TcpState structure.
  *
  * Results:
  *	None.
  *
  * Side effects:
- *	May cause the notifier to poll if any of the specified conditions are
- *	already true.
+ *	None, except for allocation of memory.
  *
  *----------------------------------------------------------------------
  */
 
 static void
-TcpWatchProc(
-    ClientData instanceData,	/* The socket state. */
-    int mask)			/* Events of interest; an OR-ed combination of
-				 * TCL_READABLE, TCL_WRITABLE and
-				 * TCL_EXCEPTION. */
+AddSocketInfoFd(
+    TcpState *statePtr,
+    SOCKET socket)
 {
-    SocketInfo *infoPtr = instanceData;
+    TcpFdList *fds = statePtr->sockets;
 
-    /*
-     * Update the watch events mask. Only if the socket is not a server
-     * socket. [Bug 557878]
-     */
-
-    if (!infoPtr->acceptProc) {
-	infoPtr->watchEvents = 0;
-	if (mask & TCL_READABLE) {
-	    infoPtr->watchEvents |= (FD_READ|FD_CLOSE|FD_ACCEPT);
-	}
-	if (mask & TCL_WRITABLE) {
-	    infoPtr->watchEvents |= (FD_WRITE|FD_CLOSE|FD_CONNECT);
+    if ( fds == NULL ) {
+	/* Add the first FD */
+	statePtr->sockets = ckalloc(sizeof(TcpFdList));
+	fds = statePtr->sockets;
+    } else {
+	/* Find end of list and append FD */
+	while ( fds->next != NULL ) {
+	    fds = fds->next;
 	}
 
-	/*
-	 * If there are any conditions already set, then tell the notifier to
-	 * poll rather than block.
-	 */
+	fds->next = ckalloc(sizeof(TcpFdList));
+	fds = fds->next;
+    }
 
-	if (infoPtr->readyEvents & infoPtr->watchEvents) {
-	    Tcl_Time blockTime = { 0, 0 };
+    /* Populate new FD */
+    fds->fd = socket;
+    fds->statePtr = statePtr;
+    fds->next = NULL;
+}
 
-	    Tcl_SetMaxBlockTime(&blockTime);
-	}
-    }
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * NewSocketInfo --
+ *
+ *	This function allocates and initializes a new TcpState structure.
+ *
+ * Results:
+ *	Returns a newly allocated TcpState.
+ *
+ * Side effects:
+ *	None, except for allocation of memory.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static TcpState *
+NewSocketInfo(SOCKET socket)
+{
+    TcpState *statePtr = ckalloc(sizeof(TcpState));
+
+    memset(statePtr, 0, sizeof(TcpState));
+
+    /*
+     * TIP #218. Removed the code inserting the new structure into the global
+     * list. This is now handled in the thread action callbacks, and only
+     * there.
+     */
+
+    AddSocketInfoFd(statePtr, socket);
+
+    return statePtr;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TcpGetProc --
+ * WaitForSocketEvent --
  *
- *	Called from Tcl_GetChannelHandle to retrieve an OS handle from inside
- *	a TCP socket based channel.
+ *	Waits until one of the specified events occurs on a socket.
+ *	For event FD_CONNECT use WaitForConnect.
  *
  * Results:
- *	Returns TCL_OK with the socket in handlePtr.
+ *	Returns 1 on success or 0 on failure, with an error code in
+ *	errorCodePtr.
  *
  * Side effects:
- *	None.
+ *	Processes socket events off the system queue.
  *
  *----------------------------------------------------------------------
  */
 
 static int
-TcpGetHandleProc(
-    ClientData instanceData,	/* The socket state. */
-    int direction,		/* Not used. */
-    ClientData *handlePtr)	/* Where to store the handle. */
+WaitForSocketEvent(
+    TcpState *statePtr,	/* Information about this socket. */
+    int events,			/* Events to look for. May be one of
+				 * FD_READ or FD_WRITE.
+				 */
+    int *errorCodePtr)		/* Where to store errors? */
 {
-    SocketInfo *statePtr = instanceData;
+    int result = 1;
+    int oldMode;
+    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
+    /*
+     * Be sure to disable event servicing so we are truly modal.
+     */
 
-    *handlePtr = INT2PTR(statePtr->sockets->fd);
-    return TCL_OK;
+    oldMode = Tcl_SetServiceMode(TCL_SERVICE_NONE);
+
+    /*
+     * Reset WSAAsyncSelect so we have a fresh set of events pending.
+     */
+
+    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) UNSELECT,
+	    (LPARAM) statePtr);
+    SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT,
+	    (LPARAM) statePtr);
+
+    while (1) {
+	int event_found;
+
+	/* get statePtr lock */
+	WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+
+	/* Check if event occured */
+	event_found = (statePtr->readyEvents & events);
+
+	/* Free list lock */
+	SetEvent(tsdPtr->socketListLock);
+
+	/* exit loop if event occured */
+	if (event_found) {
+	    break;
+	}
+
+	/* Exit loop if event did not occur but this is a non-blocking channel */
+	if (statePtr->flags & TCP_NONBLOCKING) {
+	    *errorCodePtr = EWOULDBLOCK;
+	    result = 0;
+	    break;
+	}
+
+	/*
+	 * Wait until something happens.
+	 */
+
+	WaitForSingleObject(tsdPtr->readyEvent, INFINITE);
+    }
+
+    (void) Tcl_SetServiceMode(oldMode);
+    return result;
 }
 
 /*
@@ -2462,7 +3056,8 @@ SocketProc(
 {
     int event, error;
     SOCKET socket;
-    SocketInfo *infoPtr;
+    TcpState *statePtr;
+    int info_found = 0;
     TcpFdList *fds = NULL;
     ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
 #ifdef _WIN64
@@ -2500,80 +3095,76 @@ SocketProc(
 	error = WSAGETSELECTERROR(lParam);
 	socket = (SOCKET) wParam;
 
+	WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+
 	/*
 	 * Find the specified socket on the socket list and update its
 	 * eventState flag.
 	 */
 
-	WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
-	for (infoPtr = tsdPtr->socketList; infoPtr != NULL;
-		infoPtr = infoPtr->nextPtr) {
-	    for (fds = infoPtr->sockets; fds != NULL; fds = fds->next) {
-		if (fds->fd == socket) {
-		    /*
-		     * Update the socket state.
-		     *
-		     * A count of FD_ACCEPTS is stored, so if an FD_CLOSE event
-		     * happens, then clear the FD_ACCEPT count. Otherwise,
-		     * increment the count if the current event is an FD_ACCEPT.
-		     */
-
-		    if (event & FD_CLOSE) {
-			infoPtr->acceptEventCount = 0;
-			infoPtr->readyEvents &= ~(FD_WRITE|FD_ACCEPT);
-		    } else if (event & FD_ACCEPT) {
-			infoPtr->acceptEventCount++;
-		    }
-
-		    if (event & FD_CONNECT) {
-			/*
-			 * The socket is now connected, clear the async connect
-			 * flag.
-			 */
-
-			infoPtr->flags &= ~(SOCKET_ASYNC_CONNECT);
-
-			/*
-			 * Remember any error that occurred so we can report
-			 * connection failures.
-			 */
-
-			if (error != ERROR_SUCCESS) {
-			    TclWinConvertError((DWORD) error);
-			    infoPtr->lastError = Tcl_GetErrno();
-			}
-		    }
+	for (statePtr = tsdPtr->socketList; statePtr != NULL;
+		statePtr = statePtr->nextPtr) {
+	    if ( FindFDInList(statePtr,socket) ) {
+		info_found = 1;
+		break;
+	    }
+	}
+	/*
+	 * Check if there is a pending info structure not jet in the
+	 * list
+	 */
+	if ( !info_found
+		&& tsdPtr->pendingTcpState != NULL
+		&& FindFDInList(tsdPtr->pendingTcpState,socket) ) {
+	    statePtr = tsdPtr->pendingTcpState;
+	    info_found = 1;
+	}
+	if (info_found) {
 
-		    if (infoPtr->flags & SOCKET_ASYNC_CONNECT) {
-			infoPtr->flags &= ~(SOCKET_ASYNC_CONNECT);
-			if (error != ERROR_SUCCESS) {
-			    TclWinConvertError((DWORD) error);
-			    infoPtr->lastError = Tcl_GetErrno();
-			}
-			infoPtr->readyEvents |= FD_WRITE;
-		    }
-		    infoPtr->readyEvents |= event;
+	    /*
+	     * Update the socket state.
+	     *
+	     * A count of FD_ACCEPTS is stored, so if an FD_CLOSE event
+	     * happens, then clear the FD_ACCEPT count. Otherwise,
+	     * increment the count if the current event is an FD_ACCEPT.
+	     */
 
-		    /*
-		     * Wake up the Main Thread.
-		     */
+	    if (event & FD_CLOSE) {
+		statePtr->acceptEventCount = 0;
+		statePtr->readyEvents &= ~(FD_WRITE|FD_ACCEPT);
+	    } else if (event & FD_ACCEPT) {
+		statePtr->acceptEventCount++;
+	    }
 
-		    SetEvent(tsdPtr->readyEvent);
-		    Tcl_ThreadAlert(tsdPtr->threadId);
-		    break;
+	    if (event & FD_CONNECT) {
+		/*
+		 * Remember any error that occurred so we can report
+		 * connection failures.
+		 */
+		if (error != ERROR_SUCCESS) {
+		    statePtr->notifierConnectError = error;
 		}
 	    }
+	    /*
+	     * Inform main thread about signaled events
+	     */
+	    statePtr->readyEvents |= event;
+
+	    /*
+	     * Wake up the Main Thread.
+	     */
+	    SetEvent(tsdPtr->readyEvent);
+	    Tcl_ThreadAlert(tsdPtr->threadId);
 	}
 	SetEvent(tsdPtr->socketListLock);
 	break;
 
     case SOCKET_SELECT:
-	infoPtr = (SocketInfo *) lParam;
-	for (fds = infoPtr->sockets; fds != NULL; fds = fds->next) {
-	    infoPtr = (SocketInfo *) lParam;
+	statePtr = (TcpState *) lParam;
+	for (fds = statePtr->sockets; fds != NULL; fds = fds->next) {
 	    if (wParam == SELECT) {
 		WSAAsyncSelect(fds->fd, hwnd,
-			SOCKET_MESSAGE, infoPtr->selectEvents);
+			SOCKET_MESSAGE, statePtr->selectEvents);
 	    } else {
 		/*
 		 * Clear the selection mask
@@ -2595,83 +3186,31 @@ SocketProc(
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_GetHostName --
+ * FindFDInList --
  *
- *	Returns the name of the local host.
+ *	Return true, if the given file descriptior is contained in the
+ *	file descriptor list.
  *
  * Results:
- *	A string containing the network name for this machine. The caller must
- *	not modify or free this string.
+ *	true if found.
  *
  * Side effects:
- *	Caches the name to return for future calls.
  *
  *----------------------------------------------------------------------
  */
 
-const char *
-Tcl_GetHostName(void)
-{
-    return Tcl_GetString(TclGetProcessGlobalValue(&hostName));
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * InitializeHostName --
- *
- *	This routine sets the process global value of the name of the local
- *	host on which the process is running.
- *
- * Results:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-void
-InitializeHostName(
-    char **valuePtr,
-    int *lengthPtr,
-    Tcl_Encoding *encodingPtr)
+static int
+FindFDInList(
+    TcpState *statePtr,
+    SOCKET socket)
 {
-    TCHAR tbuf[MAX_COMPUTERNAME_LENGTH + 1];
-    DWORD length = MAX_COMPUTERNAME_LENGTH + 1;
-    Tcl_DString ds;
-
-    if (GetComputerName(tbuf, &length) != 0) {
-	/*
-	 * Convert string from native to UTF then change to lowercase.
-	 */
-
-	Tcl_UtfToLower(Tcl_WinTCharToUtf(tbuf, -1, &ds));
-
-    } else {
-	Tcl_DStringInit(&ds);
-	if (TclpHasSockets(NULL) == TCL_OK) {
-	    /*
-	     * The buffer size of 256 is recommended by the MSDN page that
-	     * documents gethostname() as being always adequate.
-	     */
-
-	    Tcl_DString inDs;
-
-	    Tcl_DStringInit(&inDs);
-	    Tcl_DStringSetLength(&inDs, 256);
-	    if (gethostname(Tcl_DStringValue(&inDs),
-		    Tcl_DStringLength(&inDs)) == 0) {
-		Tcl_ExternalToUtfDString(NULL, Tcl_DStringValue(&inDs), -1,
-			&ds);
-	    }
-	    Tcl_DStringFree(&inDs);
+    TcpFdList *fds;
+    for (fds = statePtr->sockets; fds != NULL; fds = fds->next) {
+	if (fds->fd == socket) {
+	    return 1;
 	}
     }
-
-    *encodingPtr = Tcl_GetEncoding(NULL, "utf-8");
-    *lengthPtr = Tcl_DStringLength(&ds);
-    *valuePtr = ckalloc((*lengthPtr) + 1);
-    memcpy(*valuePtr, Tcl_DStringValue(&ds), (size_t)(*lengthPtr)+1);
-    Tcl_DStringFree(&ds);
+    return 0;
 }
 
 /*
@@ -2679,10 +3218,11 @@ InitializeHostName(
  *
  * TclWinGetSockOpt, et al. --
  *
- *	These functions are wrappers that let us bind the WinSock API
- *	dynamically so we can run on systems that don't have the wsock32.dll.
- *	We need wrappers for these interfaces because they are called from the
- *	generic Tcl code.
+ *	Those functions are historically exported by the stubs table and
+ *	just use the original system calls now.
+ *
+ * Warning:
+ *	Those functions are depreciated and will be removed with TCL 9.0.
  *
  * Results:
  *	As defined for each function.
@@ -2693,6 +3233,7 @@ InitializeHostName(
  *----------------------------------------------------------------------
  */
 
+#undef TclWinGetSockOpt
 int
 TclWinGetSockOpt(
     SOCKET s,
@@ -2701,19 +3242,10 @@ TclWinGetSockOpt(
     char *optval,
     int *optlen)
 {
-    /*
-     * Check that WinSock is initialized; do not call it if not, to prevent
-     * system crashes. This can happen at exit time if the exit handler for
-     * WinSock ran before other exit handlers that want to use sockets.
-     */
-
-    if (!SocketsEnabled()) {
-	return SOCKET_ERROR;
-    }
 
     return getsockopt(s, level, optname, optval, optlen);
 }
-
+#undef TclWinSetSockOpt
 int
 TclWinSetSockOpt(
     SOCKET s,
@@ -2722,51 +3254,22 @@ TclWinSetSockOpt(
     const char *optval,
     int optlen)
 {
-    /*
-     * Check that WinSock is initialized; do not call it if not, to prevent
-     * system crashes. This can happen at exit time if the exit handler for
-     * WinSock ran before other exit handlers that want to use sockets.
-     */
-
-    if (!SocketsEnabled()) {
-	return SOCKET_ERROR;
-    }
-
     return setsockopt(s, level, optname, optval, optlen);
 }
 
+#undef TclpInetNtoa
 char *
 TclpInetNtoa(
     struct in_addr addr)
 {
-    /*
-     * Check that WinSock is initialized; do not call it if not, to prevent
-     * system crashes. This can happen at exit time if the exit handler for
-     * WinSock ran before other exit handlers that want to use sockets.
-     */
-
-    if (!SocketsEnabled()) {
-        return NULL;
-    }
-
     return inet_ntoa(addr);
 }
-
+#undef TclWinGetServByName
 struct servent *
 TclWinGetServByName(
     const char *name,
     const char *proto)
 {
-    /*
-     * Check that WinSock is initialized; do not call it if not, to prevent
-     * system crashes. This can happen at exit time if the exit handler for
-     * WinSock ran before other exit handlers that want to use sockets.
-     */
-
-    if (!SocketsEnabled()) {
-	return NULL;
-    }
-
     return getservbyname(name, proto);
 }
 
@@ -2792,7 +3295,7 @@ TcpThreadActionProc(
     int action)
 {
     ThreadSpecificData *tsdPtr;
-    SocketInfo *infoPtr = instanceData;
+    TcpState *statePtr = instanceData;
     int notifyCmd;
 
     if (action == TCL_CHANNEL_THREAD_INSERT) {
@@ -2808,13 +3311,18 @@ TcpThreadActionProc(
 	tsdPtr = TCL_TSD_INIT(&dataKey);
 
 	WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
-	infoPtr->nextPtr = tsdPtr->socketList;
-	tsdPtr->socketList = infoPtr;
+	statePtr->nextPtr = tsdPtr->socketList;
+	tsdPtr->socketList = statePtr;
+
+	if (statePtr == tsdPtr->pendingTcpState) {
+	    tsdPtr->pendingTcpState = NULL;
+	}
+
 	SetEvent(tsdPtr->socketListLock);
 
 	notifyCmd = SELECT;
     } else {
-	SocketInfo **nextPtrPtr;
+	TcpState **nextPtrPtr;
 	int removed = 0;
 
 	tsdPtr = TCL_TSD_INIT(&dataKey);
@@ -2827,8 +3335,8 @@ TcpThreadActionProc(
 	WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
 	for (nextPtrPtr = &(tsdPtr->socketList); (*nextPtrPtr) != NULL;
 		nextPtrPtr = &((*nextPtrPtr)->nextPtr)) {
-	    if ((*nextPtrPtr) == infoPtr) {
-		(*nextPtrPtr) = infoPtr->nextPtr;
+	    if ((*nextPtrPtr) == statePtr) {
+		(*nextPtrPtr) = statePtr->nextPtr;
 		removed = 1;
 		break;
 	    }
@@ -2854,7 +3362,7 @@ TcpThreadActionProc(
      */
 
     SendMessage(tsdPtr->hwnd, SOCKET_SELECT,
-	    (WPARAM) notifyCmd, (LPARAM) infoPtr);
+	    (WPARAM) notifyCmd, (LPARAM) statePtr);
 }
 
 /*
@@ -2862,5 +3370,7 @@ TcpThreadActionProc(
  * mode: c
  * c-basic-offset: 4
  * fill-column: 78
+ * tab-width: 8
+ * indent-tabs-mode: nil
  * End:
  */
diff --git a/win/tclWinTest.c b/win/tclWinTest.c
index 136c4db..b3ad626 100644
--- a/win/tclWinTest.c
+++ b/win/tclWinTest.c
@@ -17,7 +17,7 @@
 /*
  * For TestplatformChmod on Windows
  */
-#ifdef __WIN32__
+#ifdef _WIN32
 #include <aclapi.h>
 #endif
 
@@ -32,8 +32,8 @@
  * Forward declarations of functions defined later in this file:
  */
 
-static int		TesteventloopCmd(ClientData dummy, Tcl_Interp *interp,
-			    int argc, const char **argv);
+static int		TesteventloopCmd(ClientData dummy, Tcl_Interp* interp,
+			    int objc, Tcl_Obj *const objv[]);
 static int		TestvolumetypeCmd(ClientData dummy,
 			    Tcl_Interp *interp, int objc,
 			    Tcl_Obj *const objv[]);
@@ -43,8 +43,8 @@ static int		TestwinsleepCmd(ClientData dummy, Tcl_Interp* interp,
 			    int objc, Tcl_Obj *const objv[]);
 static Tcl_ObjCmdProc	TestExceptionCmd;
 static int		TestplatformChmod(const char *nativePath, int pmode);
-static int		TestchmodCmd(ClientData dummy,
-			    Tcl_Interp *interp, int argc, const char **argv);
+static int		TestchmodCmd(ClientData dummy, Tcl_Interp* interp,
+			    int objc, Tcl_Obj *const objv[]);
 
 /*
  *----------------------------------------------------------------------
@@ -71,8 +71,8 @@ TclplatformtestInit(
      * Add commands for platform specific tests for Windows here.
      */
 
-    Tcl_CreateCommand(interp, "testchmod", TestchmodCmd, NULL, NULL);
-    Tcl_CreateCommand(interp, "testeventloop", TesteventloopCmd, NULL, NULL);
+    Tcl_CreateObjCommand(interp, "testchmod", TestchmodCmd, NULL, NULL);
+    Tcl_CreateObjCommand(interp, "testeventloop", TesteventloopCmd, NULL, NULL);
     Tcl_CreateObjCommand(interp, "testvolumetype", TestvolumetypeCmd,
 	    NULL, NULL);
     Tcl_CreateObjCommand(interp, "testwinclock", TestwinclockCmd, NULL, NULL);
@@ -103,21 +103,20 @@ static int
 TesteventloopCmd(
     ClientData clientData,	/* Not used. */
     Tcl_Interp *interp,		/* Current interpreter. */
-    int argc,			/* Number of arguments. */
-    const char **argv)		/* Argument strings. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
 {
     static int *framePtr = NULL;/* Pointer to integer on stack frame of
 				 * innermost invocation of the "wait"
 				 * subcommand. */
 
-    if (argc < 2) {
-	Tcl_AppendResult(interp, "wrong # arguments: should be \"", argv[0],
-		" option ... \"", NULL);
+    if (objc < 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "option ...");
 	return TCL_ERROR;
     }
-    if (strcmp(argv[1], "done") == 0) {
+    if (strcmp(Tcl_GetString(objv[1]), "done") == 0) {
 	*framePtr = 1;
-    } else if (strcmp(argv[1], "wait") == 0) {
+    } else if (strcmp(Tcl_GetString(objv[1]), "wait") == 0) {
 	int *oldFramePtr, done;
 	int oldMode = Tcl_SetServiceMode(TCL_SERVICE_ALL);
 
@@ -152,7 +151,7 @@ TesteventloopCmd(
 	(void) Tcl_SetServiceMode(oldMode);
 	framePtr = oldFramePtr;
     } else {
-	Tcl_AppendResult(interp, "bad option \"", argv[1],
+	Tcl_AppendResult(interp, "bad option \"", Tcl_GetString(objv[1]),
 		"\": must be done or wait", NULL);
 	return TCL_ERROR;
     }
@@ -211,7 +210,7 @@ TestvolumetypeCmd(
 	TclWinConvertError(GetLastError());
 	return TCL_ERROR;
     }
-    Tcl_SetResult(interp, volType, TCL_VOLATILE);
+    Tcl_AppendResult(interp, volType, NULL);
     return TCL_OK;
 #undef VOL_BUF_SIZE
 }
@@ -623,29 +622,25 @@ static int
 TestchmodCmd(
     ClientData dummy,		/* Not used. */
     Tcl_Interp *interp,		/* Current interpreter. */
-    int argc,			/* Number of arguments. */
-    const char **argv)		/* Argument strings. */
+    int objc,			/* Parameter count */
+    Tcl_Obj *const * objv)	/* Parameter vector */
 {
     int i, mode;
-    char *rest;
 
-    if (argc < 2) {
-    usage:
-	Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-		" mode file ?file ...?", NULL);
+    if (objc < 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "mode file ?file ...?");
 	return TCL_ERROR;
     }
 
-    mode = (int) strtol(argv[1], &rest, 8);
-    if ((rest == argv[1]) || (*rest != '\0')) {
-	goto usage;
+    if (Tcl_GetIntFromObj(interp, objv[1], &mode) != TCL_OK) {
+	return TCL_ERROR;
     }
 
-    for (i = 2; i < argc; i++) {
+    for (i = 2; i < objc; i++) {
 	Tcl_DString buffer;
 	const char *translated;
 
-	translated = Tcl_TranslateFileName(interp, argv[i], &buffer);
+	translated = Tcl_TranslateFileName(interp, Tcl_GetString(objv[i]), &buffer);
 	if (translated == NULL) {
 	    return TCL_ERROR;
 	}
diff --git a/win/tclWinThrd.c b/win/tclWinThrd.c
index 102fd40..1c9d483 100644
--- a/win/tclWinThrd.c
+++ b/win/tclWinThrd.c
@@ -13,7 +13,15 @@
 
 #include "tclWinInt.h"
 
-#include <sys/stat.h>
+#include <float.h>
+
+/* Workaround for mingw versions which don't provide this in float.h */
+#ifndef _MCW_EM
+#   define	_MCW_EM		0x0008001F	/* Error masks */
+#   define	_MCW_RC		0x00000300	/* Rounding */
+#   define	_MCW_PC		0x00030000	/* Precision */
+_CRTIMP unsigned int __cdecl _controlfp (unsigned int unNew, unsigned int unMask);
+#endif
 
 /*
  * This is the master lock used to serialize access to other serialization
@@ -124,6 +132,66 @@ typedef struct allocMutex {
 #endif /* USE_THREAD_ALLOC */
 
 /*
+ * The per thread data passed from TclpThreadCreate
+ * to TclWinThreadStart.
+ */
+
+typedef struct WinThread {
+  LPTHREAD_START_ROUTINE lpStartAddress; /* Original startup routine */
+  LPVOID lpParameter;		/* Original startup data */
+  unsigned int fpControl;	/* Floating point control word from the
+				 * main thread */
+} WinThread;
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclWinThreadStart --
+ *
+ *	This procedure is the entry point for all new threads created
+ *	by Tcl on Windows.
+ *
+ * Results:
+ *	Various, depending on the result of the wrapped thread start
+ *	routine.
+ *
+ * Side effects:
+ *	Arbitrary, since user code is executed.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static DWORD WINAPI
+TclWinThreadStart(
+    LPVOID lpParameter)		/* The WinThread structure pointer passed
+				 * from TclpThreadCreate */
+{
+    WinThread *winThreadPtr = (WinThread *) lpParameter;
+    unsigned int fpmask;
+    LPTHREAD_START_ROUTINE lpOrigStartAddress;
+    LPVOID lpOrigParameter;
+
+    if (!winThreadPtr) {
+	return TCL_ERROR;
+    }
+
+    fpmask = _MCW_EM | _MCW_RC | _MCW_PC;
+
+#if defined(_MSC_VER) && _MSC_VER >= 1200
+    fpmask |= _MCW_DN;
+#endif
+
+    _controlfp(winThreadPtr->fpControl, fpmask);
+
+    lpOrigStartAddress = winThreadPtr->lpStartAddress;
+    lpOrigParameter = winThreadPtr->lpParameter;
+
+    ckfree((char *)winThreadPtr);
+    return lpOrigStartAddress(lpOrigParameter);
+}
+
+/*
  *----------------------------------------------------------------------
  *
  * TclpThreadCreate --
@@ -149,8 +217,14 @@ TclpThreadCreate(
     int flags)			/* Flags controlling behaviour of the new
 				 * thread. */
 {
+    WinThread *winThreadPtr;		/* Per-thread startup info */
     HANDLE tHandle;
 
+    winThreadPtr = (WinThread *)ckalloc(sizeof(WinThread));
+    winThreadPtr->lpStartAddress = (LPTHREAD_START_ROUTINE) proc;
+    winThreadPtr->lpParameter = clientData;
+    winThreadPtr->fpControl = _controlfp(0, 0);
+
     EnterCriticalSection(&joinLock);
 
     *idPtr = 0; /* must initialize as Tcl_Thread is a pointer and
@@ -158,12 +232,12 @@ TclpThreadCreate(
 		 */
 
 #if defined(_MSC_VER) || defined(__MSVCRT__) || defined(__BORLANDC__)
-    tHandle = (HANDLE) _beginthreadex(NULL, (unsigned) stackSize, proc,
-	    clientData, 0, (unsigned *)idPtr);
+    tHandle = (HANDLE) _beginthreadex(NULL, (unsigned) stackSize,
+	    (Tcl_ThreadCreateProc*) TclWinThreadStart, winThreadPtr,
+	    0, (unsigned *)idPtr);
 #else
     tHandle = CreateThread(NULL, (DWORD) stackSize,
-	    (LPTHREAD_START_ROUTINE) proc, (LPVOID) clientData,
-	    (DWORD) 0, (LPDWORD)idPtr);
+	    TclWinThreadStart, winThreadPtr, 0, (LPDWORD)idPtr);
 #endif
 
     if (tHandle == NULL) {
diff --git a/win/tclWinTime.c b/win/tclWinTime.c
index daa229d..7045c72 100644
--- a/win/tclWinTime.c
+++ b/win/tclWinTime.c
@@ -280,7 +280,7 @@ NativeGetTime(
     Tcl_Time *timePtr,
     ClientData clientData)
 {
-    struct timeb t;
+    struct _timeb t;
     int useFtime = 1;		/* Flag == TRUE if we need to fall back on
 				 * ftime rather than using the perf counter. */
 
@@ -446,7 +446,7 @@ NativeGetTime(
 	 * High resolution timer is not available. Just use ftime.
 	 */
 
-	ftime(&t);
+	_ftime(&t);
 	timePtr->sec = (long)t.time;
 	timePtr->usec = t.millitm * 1000;
     }
diff --git a/win/tclooConfig.sh b/win/tclooConfig.sh
index dce540a..55fe75f 100644
--- a/win/tclooConfig.sh
+++ b/win/tclooConfig.sh
@@ -15,5 +15,5 @@ TCLOO_LIB_SPEC=""
 TCLOO_STUB_LIB_SPEC=""
 TCLOO_INCLUDE_SPEC=""
 TCLOO_PRIVATE_INCLUDE_SPEC=""
-TCLOO_CFLAGS=-DUSE_TCLOO_STUBS
-TCLOO_VERSION=0.7
+TCLOO_CFLAGS=""
+TCLOO_VERSION=1.0.3
diff --git a/win/tclsh.exe.manifest.in b/win/tclsh.exe.manifest.in
new file mode 100644
index 0000000..8b06fce
--- /dev/null
+++ b/win/tclsh.exe.manifest.in
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"
+	xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+    <assemblyIdentity
+	    version="@TCL_WIN_VERSION@"
+	    processorArchitecture="@MACHINE@"
+	    name="Tcl.tclsh"
+	    type="win32"
+	/>
+    <description>Tcl command line shell (tclsh)</description>
+    <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+	<security>
+	    <requestedPrivileges>
+		<requestedExecutionLevel
+			level="asInvoker"
+			uiAccess="false"
+		    />
+	    </requestedPrivileges>
+	</security>
+    </trustInfo>
+    <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+	<application>
+	    <!-- Windows 10 -->
+	    <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+	    <!-- Windows 8.1 -->
+	    <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+	    <!-- Windows 8 -->
+	    <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+	    <!-- Windows 7 -->
+	    <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+	    <!-- Windows Vista -->
+	    <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
+	</application>
+    </compatibility>
+    <asmv3:application>
+	<asmv3:windowsSettings
+		xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
+	    <dpiAware>true</dpiAware>
+	</asmv3:windowsSettings>
+    </asmv3:application>
+    <dependency>
+	<dependentAssembly>
+	    <assemblyIdentity
+		    type="win32"
+		    name="Microsoft.Windows.Common-Controls"
+		    version="6.0.0.0"
+		    processorArchitecture="@MACHINE@"
+		    publicKeyToken="6595b64144ccf1df"
+		    language="*"
+		/>
+	</dependentAssembly>
+    </dependency>
+</assembly>
diff --git a/win/tclsh.rc b/win/tclsh.rc
index 16eaf83..161da50 100644
--- a/win/tclsh.rc
+++ b/win/tclsh.rc
@@ -1,3 +1,4 @@
+//
 // Version Resource Script
 //
 
@@ -67,3 +68,15 @@ END
 //
 
 tclsh                      ICON    DISCARDABLE     "tclsh.ico"
+
+//
+// This is needed for Windows 8.1 onwards.
+//
+
+#ifndef RT_MANIFEST
+#define RT_MANIFEST     24
+#endif
+#ifndef CREATEPROCESS_MANIFEST_RESOURCE_ID
+#define CREATEPROCESS_MANIFEST_RESOURCE_ID 1
+#endif
+CREATEPROCESS_MANIFEST_RESOURCE_ID RT_MANIFEST "tclsh.exe.manifest"