Update zlib to version 1.2.10. Dll's and *.lib files not updated yet

31 files changed, 115 insertions, 93 deletions

diff --git a/.fossil-settings/binary-glob b/.fossil-settings/binary-glob
index ca85874..509939c 100644
--- a/.fossil-settings/binary-glob
+++ b/.fossil-settings/binary-glob
@@ -1,3 +1,4 @@
+compat/zlib/zlib.3.pdf
 *.bmp
 *.gif
 *.png
diff --git a/.fossil-settings/crnl-glob b/.fossil-settings/crnl-glob
index c014320..cc8dd26 100644
--- a/.fossil-settings/crnl-glob
+++ b/.fossil-settings/crnl-glob
@@ -1,3 +1,6 @@
+compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
+compat/zlib/contrib/vstudio/readme.txt
+compat/zlib/contrib/vstudio/*/zlib.rc
 tools/tcl.hpj.in
 tools/tcl.wse.in
 win/buildall.vc.bat
diff --git a/compat/zlib/CMakeLists.txt b/compat/zlib/CMakeLists.txt
index 14411a4..1a954a6 100644
--- a/compat/zlib/CMakeLists.txt
+++ b/compat/zlib/CMakeLists.txt
@@ -3,7 +3,7 @@ set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
 
 project(zlib C)
 
-set(VERSION "1.2.9")
+set(VERSION "1.2.10")
 
 option(ASM686 "Enable building i686 assembly implementation")
 option(AMD64 "Enable building amd64 assembly implementation")
diff --git a/compat/zlib/ChangeLog b/compat/zlib/ChangeLog
index 63d0495..fed9adb 100644
--- a/compat/zlib/ChangeLog
+++ b/compat/zlib/ChangeLog
@@ -1,6 +1,13 @@
 
                 ChangeLog file for zlib
 
+Changes in 1.2.10 (2 Jan 2017)
+- Avoid warnings on snprintf() return value
+- Fix bug in deflate_stored() for zero-length input
+- Fix bug in gzwrite.c that produced corrupt gzip files
+- Remove files to be installed before copying them in Makefile.in
+- Add warnings when compiling with assembler code
+
 Changes in 1.2.9 (31 Dec 2016)
 - Fix contrib/minizip to permit unzipping with desktop API [Zouzou]
 - Improve contrib/blast to return unused bytes
diff --git a/compat/zlib/Makefile.in b/compat/zlib/Makefile.in
index c8b487c..1852192 100644
--- a/compat/zlib/Makefile.in
+++ b/compat/zlib/Makefile.in
@@ -32,7 +32,7 @@ CPP=$(CC) -E
 
 STATICLIB=libz.a
 SHAREDLIB=libz.so
-SHAREDLIBV=libz.so.1.2.9
+SHAREDLIBV=libz.so.1.2.10
 SHAREDLIBM=libz.so.1
 LIBS=$(STATICLIB) $(SHAREDLIBV)
 
@@ -309,10 +309,12 @@ install-libs: $(LIBS)
 	-@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi
 	-@if [ ! -d $(DESTDIR)$(man3dir)      ]; then mkdir -p $(DESTDIR)$(man3dir); fi
 	-@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
+	rm -f $(DESTDIR)$(libdir)/$(STATICLIB)
 	cp $(STATICLIB) $(DESTDIR)$(libdir)
 	chmod 644 $(DESTDIR)$(libdir)/$(STATICLIB)
 	-@($(RANLIB) $(DESTDIR)$(libdir)/libz.a || true) >/dev/null 2>&1
 	-@if test -n "$(SHAREDLIBV)"; then \
+	  rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
 	  cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir); \
 	  echo "cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)"; \
 	  chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
@@ -322,8 +324,10 @@ install-libs: $(LIBS)
 	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
 	  ($(LDCONFIG) || true)  >/dev/null 2>&1; \
 	fi
+	rm -f $(DESTDIR)$(man3dir)/zlib.3
 	cp $(SRCDIR)zlib.3 $(DESTDIR)$(man3dir)
 	chmod 644 $(DESTDIR)$(man3dir)/zlib.3
+	rm -f $(DESTDIR)$(pkgconfigdir)/zlib.pc
 	cp zlib.pc $(DESTDIR)$(pkgconfigdir)
 	chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc
 # The ranlib in install is needed on NeXTSTEP which checks file times
@@ -331,6 +335,7 @@ install-libs: $(LIBS)
 
 install: install-libs
 	-@if [ ! -d $(DESTDIR)$(includedir)   ]; then mkdir -p $(DESTDIR)$(includedir); fi
+	rm -f $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
 	cp $(SRCDIR)zlib.h zconf.h $(DESTDIR)$(includedir)
 	chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
 
diff --git a/compat/zlib/README b/compat/zlib/README
index 8002f39..e2250bd 100644
--- a/compat/zlib/README
+++ b/compat/zlib/README
@@ -1,6 +1,6 @@
 ZLIB DATA COMPRESSION LIBRARY
 
-zlib 1.2.9 is a general purpose data compression library.  All the code is
+zlib 1.2.10 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 1.2.9 are documented in the file ChangeLog.
+The changes made in version 1.2.10 are documented in the file ChangeLog.
 
 Unsupported third party contributions are provided in directory contrib/ .
 
@@ -84,7 +84,7 @@ Acknowledgments:
 
 Copyright notice:
 
- (C) 1995-2016 Jean-loup Gailly and Mark Adler
+ (C) 1995-2017 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/contrib/delphi/ZLib.pas b/compat/zlib/contrib/delphi/ZLib.pas
index 7a3cb66..e9d72f0 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 = '1.2.9';
+  zlib_version = '1.2.10';
 
 type
   EZlibError = class(Exception);
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs b/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
index 3d156f4..a0e3985 100644
--- a/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
@@ -156,7 +156,7 @@ namespace DotZLibTests
         public void Info_Version()

         {

             Info info = new Info();

-            Assert.AreEqual("1.2.9", Info.Version);

+            Assert.AreEqual("1.2.10", Info.Version);

             Assert.AreEqual(32, info.SizeOfUInt);

             Assert.AreEqual(32, info.SizeOfULong);

             Assert.AreEqual(32, info.SizeOfPointer);

diff --git a/compat/zlib/contrib/infback9/inftree9.c b/compat/zlib/contrib/infback9/inftree9.c
index 2103aee..ea56047 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) 1995-2016 Mark Adler
+ * Copyright (C) 1995-2017 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 1.2.9 Copyright 1995-2016 Mark Adler ";
+   " inflate9 1.2.10 Copyright 1995-2017 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, 192, 79};
+        133, 133, 133, 133, 144, 192, 202};
     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 54d823f..bbb2283 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], [1.2.9], [bugzilla.redhat.com])
+AC_INIT([minizip], [1.2.10], [bugzilla.redhat.com])
 AC_CONFIG_SRCDIR([minizip.c])
 AM_INIT_AUTOMAKE([foreign])
 LT_INIT
diff --git a/compat/zlib/contrib/pascal/zlibpas.pas b/compat/zlib/contrib/pascal/zlibpas.pas
index aebaea0..2330898 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 = '1.2.9';
-  ZLIB_VERNUM  = $1290;
+  ZLIB_VERSION = '1.2.10';
+  ZLIB_VERNUM  = $12a0;
 
 type
   alloc_func = function(opaque: Pointer; items, size: Integer): Pointer;
diff --git a/compat/zlib/contrib/vstudio/readme.txt b/compat/zlib/contrib/vstudio/readme.txt
index 3954bc4..98d8a05 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 1.2.9

+Building instructions for the DLL versions of Zlib 1.2.10

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

 

 This directory contains projects that build zlib and minizip using

@@ -75,4 +75,4 @@ Gilles Vollant
 info@winimage.com

 

 Visual Studio 2013 and 2015 Projects from Sean Hunt

-seandhunt_7@yahoo.com
\ No newline at end of file
+seandhunt_7@yahoo.com

diff --git a/compat/zlib/contrib/vstudio/vc10/zlib.rc b/compat/zlib/contrib/vstudio/vc10/zlib.rc
index d846820..f1c19bc 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, 9, 0

-  PRODUCTVERSION 1, 2, 9, 0

+  FILEVERSION	 1, 2, 10, 0

+  PRODUCTVERSION 1, 2, 10, 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",	"1.2.9\0"

+      VALUE "FileVersion",	"1.2.10\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) 1995-2016 Jean-loup Gailly & Mark Adler\0"

+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"

     END

   END

   BLOCK "VarFileInfo"

diff --git a/compat/zlib/contrib/vstudio/vc11/zlib.rc b/compat/zlib/contrib/vstudio/vc11/zlib.rc
index d846820..f1c19bc 100644
--- a/compat/zlib/contrib/vstudio/vc11/zlib.rc
+++ b/compat/zlib/contrib/vstudio/vc11/zlib.rc
@@ -2,8 +2,8 @@
 

 #define IDR_VERSION1  1

 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE

-  FILEVERSION	 1, 2, 9, 0

-  PRODUCTVERSION 1, 2, 9, 0

+  FILEVERSION	 1, 2, 10, 0

+  PRODUCTVERSION 1, 2, 10, 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",	"1.2.9\0"

+      VALUE "FileVersion",	"1.2.10\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) 1995-2016 Jean-loup Gailly & Mark Adler\0"

+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"

     END

   END

   BLOCK "VarFileInfo"

diff --git a/compat/zlib/contrib/vstudio/vc12/zlib.rc b/compat/zlib/contrib/vstudio/vc12/zlib.rc
index 4f6396d..ef38298 100644
--- a/compat/zlib/contrib/vstudio/vc12/zlib.rc
+++ b/compat/zlib/contrib/vstudio/vc12/zlib.rc
@@ -2,8 +2,8 @@
 
 #define IDR_VERSION1  1
 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
-  FILEVERSION	 1, 2, 9, 0
-  PRODUCTVERSION 1, 2, 9, 0
+  FILEVERSION	 1, 2, 10, 0
+  PRODUCTVERSION 1, 2, 10, 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",	"1.2.8.1\0"
+      VALUE "FileVersion",	"1.2.10\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"
+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"
     END
   END
   BLOCK "VarFileInfo"
diff --git a/compat/zlib/contrib/vstudio/vc14/zlib.rc b/compat/zlib/contrib/vstudio/vc14/zlib.rc
index 4f6396d..ef38298 100644
--- a/compat/zlib/contrib/vstudio/vc14/zlib.rc
+++ b/compat/zlib/contrib/vstudio/vc14/zlib.rc
@@ -2,8 +2,8 @@
 
 #define IDR_VERSION1  1
 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
-  FILEVERSION	 1, 2, 9, 0
-  PRODUCTVERSION 1, 2, 9, 0
+  FILEVERSION	 1, 2, 10, 0
+  PRODUCTVERSION 1, 2, 10, 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",	"1.2.8.1\0"
+      VALUE "FileVersion",	"1.2.10\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"
+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"
     END
   END
   BLOCK "VarFileInfo"
diff --git a/compat/zlib/contrib/vstudio/vc9/zlib.rc b/compat/zlib/contrib/vstudio/vc9/zlib.rc
index d846820..f1c19bc 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, 9, 0

-  PRODUCTVERSION 1, 2, 9, 0

+  FILEVERSION	 1, 2, 10, 0

+  PRODUCTVERSION 1, 2, 10, 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",	"1.2.9\0"

+      VALUE "FileVersion",	"1.2.10\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) 1995-2016 Jean-loup Gailly & Mark Adler\0"

+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"

     END

   END

   BLOCK "VarFileInfo"

diff --git a/compat/zlib/deflate.c b/compat/zlib/deflate.c
index 415adbf..2ad890e 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) 1995-2016 Jean-loup Gailly and Mark Adler
+ * Copyright (C) 1995-2017 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 1.2.9 Copyright 1995-2016 Jean-loup Gailly and Mark Adler ";
+   " deflate 1.2.10 Copyright 1995-2017 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
@@ -88,6 +88,7 @@ local void putShortMSB    OF((deflate_state *s, uInt b));
 local void flush_pending  OF((z_streamp strm));
 local unsigned read_buf   OF((z_streamp strm, Bytef *buf, unsigned size));
 #ifdef ASMV
+#  pragma message("Assembler code may have bugs -- use at your own risk")
       void match_init OF((void)); /* asm code initialization */
       uInt longest_match  OF((deflate_state *s, IPos cur_match));
 #else
@@ -1040,7 +1041,6 @@ int ZEXPORT deflate (strm, flush)
             }
         }
     }
-    Assert(strm->avail_out > 0, "bug2");
 
     if (flush != Z_FINISH) return Z_OK;
     if (s->wrap <= 0) return Z_STREAM_END;
@@ -1653,17 +1653,19 @@ local block_state deflate_stored(s, flush)
      * possible. If flushing, copy the remaining available input to next_out as
      * stored blocks, if there is enough space.
      */
-    unsigned len, left, have, last;
+    unsigned len, left, have, last = 0;
     unsigned used = s->strm->avail_in;
-    for (;;) {
+    do {
         /* Set len to the maximum size block that we can copy directly with the
          * available input data and output space. Set left to how much of that
          * would be copied from what's left in the window.
          */
         len = MAX_STORED;       /* maximum deflate stored block length */
         have = (s->bi_valid + 42) >> 3;         /* number of header bytes */
+        if (s->strm->avail_out < have)          /* need room for header */
+            break;
             /* maximum stored block length that will fit in avail_out: */
-        have = s->strm->avail_out > have ? s->strm->avail_out - have : 0;
+        have = s->strm->avail_out - have;
         left = s->strstart - s->block_start;    /* bytes left in window */
         if (len > (ulg)left + s->strm->avail_in)
             len = left + s->strm->avail_in;     /* limit len to the input */
@@ -1677,7 +1679,8 @@ local block_state deflate_stored(s, flush)
          * copying to the window and the pending buffer instead. Also don't
          * write an empty block when flushing -- deflate() does that.
          */
-        if (len < min_block && (len == 0 || flush == Z_NO_FLUSH ||
+        if (len < min_block && ((len == 0 && flush != Z_FINISH) ||
+                                flush == Z_NO_FLUSH ||
                                 len - left != s->strm->avail_in))
             break;
 
@@ -1721,7 +1724,7 @@ local block_state deflate_stored(s, flush)
             s->strm->avail_out -= len;
             s->strm->total_out += len;
         }
-    }
+    } while (last == 0);
 
     /* Update the sliding window with the last s->w_size bytes of the copied
      * data, or append all of the copied data to the existing window if less
@@ -1754,13 +1757,14 @@ local block_state deflate_stored(s, flush)
         s->insert += MIN(used, s->w_size - s->insert);
     }
 
-    /* If flushing or finishing and all input has been consumed, then done. If
-     * the code above couldn't write a complete block to next_out, then the
-     * code following this won't be able to either.
-     */
-    if (flush != Z_NO_FLUSH && s->strm->avail_in == 0 &&
-        (long)s->strstart == s->block_start)
-        return flush == Z_FINISH ? finish_done : block_done;
+    /* If the last block was written to next_out, then done. */
+    if (last)
+        return finish_done;
+
+    /* If flushing and all input has been consumed, then done. */
+    if (flush != Z_NO_FLUSH && flush != Z_FINISH &&
+        s->strm->avail_in == 0 && (long)s->strstart == s->block_start)
+        return block_done;
 
     /* Fill the window with any remaining input. */
     have = s->window_size - s->strstart - 1;
@@ -1791,20 +1795,18 @@ local block_state deflate_stored(s, flush)
     min_block = MIN(have, s->w_size);
     left = s->strstart - s->block_start;
     if (left >= min_block ||
-        (left && flush != Z_NO_FLUSH && s->strm->avail_in == 0 &&
-         left <= have)) {
+        ((left || flush == Z_FINISH) && flush != Z_NO_FLUSH &&
+         s->strm->avail_in == 0 && left <= have)) {
         len = MIN(left, have);
         last = flush == Z_FINISH && s->strm->avail_in == 0 &&
                len == left ? 1 : 0;
         _tr_stored_block(s, (charf *)s->window + s->block_start, len, last);
         s->block_start += len;
         flush_pending(s->strm);
-        if (last)
-            return finish_started;
     }
 
     /* We've done all we can with the available input and output. */
-    return need_more;
+    return last ? finish_started : need_more;
 }
 
 /* ===========================================================================
diff --git a/compat/zlib/gzlib.c b/compat/zlib/gzlib.c
index a87d3d1..e142ffb 100644
--- a/compat/zlib/gzlib.c
+++ b/compat/zlib/gzlib.c
@@ -211,7 +211,7 @@ local gzFile gz_open(path, fd, mode)
     else
 #endif
 #if !defined(NO_snprintf) && !defined(NO_vsnprintf)
-        snprintf(state->path, len + 1, "%s", (const char *)path);
+        (void)snprintf(state->path, len + 1, "%s", (const char *)path);
 #else
         strcpy(state->path, path);
 #endif
@@ -293,7 +293,7 @@ gzFile ZEXPORT gzdopen(fd, mode)
     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 */
+    (void)snprintf(path, 7 + 3 * sizeof(int), "<fd:%d>", fd);
 #else
     sprintf(path, "<fd:%d>", fd);   /* for debugging */
 #endif
@@ -608,8 +608,8 @@ void ZLIB_INTERNAL gz_error(state, err, msg)
         return;
     }
 #if !defined(NO_snprintf) && !defined(NO_vsnprintf)
-    snprintf(state->msg, strlen(state->path) + strlen(msg) + 3,
-             "%s%s%s", state->path, ": ", msg);
+    (void)snprintf(state->msg, strlen(state->path) + strlen(msg) + 3,
+                   "%s%s%s", state->path, ": ", msg);
 #else
     strcpy(state->msg, state->path);
     strcat(state->msg, ": ");
diff --git a/compat/zlib/gzwrite.c b/compat/zlib/gzwrite.c
index a2ee573..1ec1da4 100644
--- a/compat/zlib/gzwrite.c
+++ b/compat/zlib/gzwrite.c
@@ -117,6 +117,7 @@ local int gz_comp(state, flush)
             if (strm->avail_out == 0) {
                 strm->avail_out = state->size;
                 strm->next_out = state->out;
+                state->x.next = state->out;
             }
         }
 
diff --git a/compat/zlib/inffast.c b/compat/zlib/inffast.c
index a15876d..29eb7d8 100644
--- a/compat/zlib/inffast.c
+++ b/compat/zlib/inffast.c
@@ -8,7 +8,9 @@
 #include "inflate.h"
 #include "inffast.h"
 
-#ifndef ASMINF
+#ifdef ASMINF
+#  pragma message("Assembler code may have bugs -- use at your own risk")
+#else
 
 /*
    Decode literal, length, and distance codes and write out the resulting
diff --git a/compat/zlib/inftrees.c b/compat/zlib/inftrees.c
index fa27dcb..8a904dd 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) 1995-2016 Mark Adler
+ * Copyright (C) 1995-2017 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 1.2.9 Copyright 1995-2016 Mark Adler ";
+   " inflate 1.2.10 Copyright 1995-2017 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, 192, 79};
+        19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 192, 202};
     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,
diff --git a/compat/zlib/os400/README400 b/compat/zlib/os400/README400
index 7926d7c..28dca8c 100644
--- a/compat/zlib/os400/README400
+++ b/compat/zlib/os400/README400
@@ -1,4 +1,4 @@
-        ZLIB version 1.2.9 for OS/400 installation instructions
+        ZLIB version 1.2.10 for OS/400 installation instructions
 
 1) Download and unpack the zlib tarball to some IFS directory.
    (i.e.: /path/to/the/zlib/ifs/source/directory)
diff --git a/compat/zlib/os400/zlib.inc b/compat/zlib/os400/zlib.inc
index 5431e54..a2147dd 100644
--- a/compat/zlib/os400/zlib.inc
+++ b/compat/zlib/os400/zlib.inc
@@ -1,7 +1,7 @@
       *  ZLIB.INC - Interface to the general purpose compression library
       *
       *  ILE RPG400 version by Patrick Monnerat, DATASPHERE.
-      *  Version 1.2.9
+      *  Version 1.2.10
       *
       *
       *  WARNING:
@@ -22,12 +22,12 @@
       *
       *  Versioning information.
       *
-     D ZLIB_VERSION    C                   '1.2.9'
-     D ZLIB_VERNUM     C                   X'1290'
+     D ZLIB_VERSION    C                   '1.2.10'
+     D ZLIB_VERNUM     C                   X'12a0'
      D ZLIB_VER_MAJOR  C                   1
      D ZLIB_VER_MINOR  C                   2
      D ZLIB_VER_REVISION...
-     D                 C                   9
+     D                 C                   10
      D ZLIB_VER_SUBREVISION...
      D                 C                   0
       *
diff --git a/compat/zlib/qnx/package.qpg b/compat/zlib/qnx/package.qpg
index 67a8777..d9a1229 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.1.2.9" install="/opt/lib/" user="root:bin" permission="644"/>
-         <QPG:Add file="libz.so" install="/opt/lib/" component="dev" filetype="symlink" linkto="libz.so.1.2.9"/>
-         <QPG:Add file="libz.so.1" install="/opt/lib/" filetype="symlink" linkto="libz.so.1.2.9"/>
-         <QPG:Add file="../libz.so.1.2.9" install="/opt/lib/" component="slib"/>
+         <QPG:Add file="../libz.so.1.2.10" install="/opt/lib/" user="root:bin" permission="644"/>
+         <QPG:Add file="libz.so" install="/opt/lib/" component="dev" filetype="symlink" linkto="libz.so.1.2.10"/>
+         <QPG:Add file="libz.so.1" install="/opt/lib/" filetype="symlink" linkto="libz.so.1.2.10"/>
+         <QPG:Add file="../libz.so.1.2.10" install="/opt/lib/" component="slib"/>
       </QPG:Files>
 
       <QPG:PackageFilter>
@@ -63,7 +63,7 @@
             </QPM:ProductDescription>
 
             <QPM:ReleaseDescription>
-               <QPM:ReleaseVersion>1.2.9</QPM:ReleaseVersion>
+               <QPM:ReleaseVersion>1.2.10</QPM:ReleaseVersion>
                <QPM:ReleaseUrgency>Medium</QPM:ReleaseUrgency>
                <QPM:ReleaseStability>Stable</QPM:ReleaseStability>
                <QPM:ReleaseNoteMinor></QPM:ReleaseNoteMinor>
diff --git a/compat/zlib/treebuild.xml b/compat/zlib/treebuild.xml
index 931ee5a..a530cc0 100644
--- a/compat/zlib/treebuild.xml
+++ b/compat/zlib/treebuild.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" ?>
-<package name="zlib" version="1.2.9">
-    <library name="zlib" dlversion="1.2.9" dlname="z">
+<package name="zlib" version="1.2.10">
+    <library name="zlib" dlversion="1.2.10" dlname="z">
 	<property name="description"> zip compression library </property>
 	<property name="include-target-dir" value="$(@PACKAGE/install-includedir)" />
 
diff --git a/compat/zlib/win32/README-WIN32.txt b/compat/zlib/win32/README-WIN32.txt
index 5002f3c..16adcca 100644
--- a/compat/zlib/win32/README-WIN32.txt
+++ b/compat/zlib/win32/README-WIN32.txt
@@ -1,6 +1,6 @@
 ZLIB DATA COMPRESSION LIBRARY
 
-zlib 1.2.9 is a general purpose data compression library.  All the code is
+zlib 1.2.10 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-1.2.9-win32-x86.zip will contain the following files:
+The package zlib-1.2.10-win32-x86.zip will contain the following files:
 
   README-WIN32.txt This document
   ChangeLog        Changes since previous zlib packages
diff --git a/compat/zlib/zlib.3 b/compat/zlib/zlib.3
index cbac458..00dc061 100644
--- a/compat/zlib/zlib.3
+++ b/compat/zlib/zlib.3
@@ -1,4 +1,4 @@
-.TH ZLIB 3 "31 Dec 2016"
+.TH ZLIB 3 "2 Jan 2017"
 .SH NAME
 zlib \- compression/decompression library
 .SH SYNOPSIS
@@ -105,9 +105,9 @@ 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 AND LICENSE
-Version 1.2.9
+Version 1.2.10
 .LP
-Copyright (C) 1995-2016 Jean-loup Gailly and Mark Adler
+Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
 .LP
 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/zlib.3.pdf b/compat/zlib/zlib.3.pdf
index 5c71eed..20008cd 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 69fbb97..dc90dc8 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 1.2.9, December 31st, 2016
+  version 1.2.10, January 2nd, 2017
 
-  Copyright (C) 1995-2016 Jean-loup Gailly and Mark Adler
+  Copyright (C) 1995-2017 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 "1.2.9"
-#define ZLIB_VERNUM 0x1290
+#define ZLIB_VERSION "1.2.10"
+#define ZLIB_VERNUM 0x12a0
 #define ZLIB_VER_MAJOR 1
 #define ZLIB_VER_MINOR 2
-#define ZLIB_VER_REVISION 9
+#define ZLIB_VER_REVISION 10
 #define ZLIB_VER_SUBREVISION 0
 
 /*
@@ -379,10 +379,11 @@ ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
 
      Initializes the internal stream state for decompression.  The fields
    next_in, avail_in, zalloc, zfree and opaque must be initialized before by
-   the caller.  In the current version of inflate, the provide input is not
-   read or consumed.  Any memory allocation will be deferred to the first call
-   of inflate.  If zalloc and zfree are set to Z_NULL, inflateInit updates them
-   to use default allocation functions.
+   the caller.  In the current version of inflate, the provided input is not
+   read or consumed.  The allocation of a sliding window will be deferred to
+   the first call of inflate (if the decompression does not complete on the
+   first call).  If zalloc and zfree are set to Z_NULL, inflateInit updates
+   them to use default allocation functions.
 
      inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
    memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
@@ -408,7 +409,7 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
 
   - Decompress more input starting at next_in and update next_in and avail_in
     accordingly.  If not all input can be processed (because there is not
-    enough room in the output buffer), then next_in and avail_on are updated
+    enough room in the output buffer), then next_in and avail_in are updated
     accordingly, and processing will resume at this point for the next call of
     inflate().
 
@@ -1229,7 +1230,7 @@ ZEXTERN int ZEXPORT compress OF((Bytef *dest,   uLongf *destLen,
    the byte length of the source buffer.  Upon entry, destLen is the total size
    of the destination buffer, which must be at least the value returned by
    compressBound(sourceLen).  Upon exit, destLen is the actual size of the
-   compressed buffer.  compress() is equivalent to compress2() with a level
+   compressed data.  compress() is equivalent to compress2() with a level
    parameter of Z_DEFAULT_COMPRESSION.
 
      compress returns Z_OK if success, Z_MEM_ERROR if there was not
@@ -1246,7 +1247,7 @@ ZEXTERN int ZEXPORT compress2 OF((Bytef *dest,   uLongf *destLen,
    length of the source buffer.  Upon entry, destLen is the total size of the
    destination buffer, which must be at least the value returned by
    compressBound(sourceLen).  Upon exit, destLen is the actual size of the
-   compressed buffer.
+   compressed data.
 
      compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
    memory, Z_BUF_ERROR if there was not enough room in the output buffer,
diff --git a/compat/zlib/zutil.c b/compat/zlib/zutil.c
index 3b4d904..56534fb 100644
--- a/compat/zlib/zutil.c
+++ b/compat/zlib/zutil.c
@@ -113,7 +113,7 @@ uLong ZEXPORT zlibCompileFlags()
 }
 
 #ifdef ZLIB_DEBUG
-
+#include <stdlib.h>
 #  ifndef verbose
 #    define verbose 0
 #  endif