Sync zlib sources with GCC, upgrading to 1.2.10.

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
- Assure that gzoffset() is correct when appending
- Improve compress() and uncompress() to support large lengths
- Fix bug in test/example.c where error code not saved
- Remedy Coverity warning [Randers-Pehrson]
- Improve speed of gzprintf() in transparent mode
- Fix inflateInit2() bug when windowBits is 16 or 32
- Change DEBUG macro to ZLIB_DEBUG
- Avoid uninitialized access by gzclose_w()
- Allow building zlib outside of the source directory
- Fix bug that accepted invalid zlib header when windowBits is zero
- Fix gzseek() problem on MinGW due to buggy _lseeki64 there
- Loop on write() calls in gzwrite.c in case of non-blocking I/O
- Add --warn (-w) option to ./configure for more compiler warnings
- Reject a window size of 256 bytes if not using the zlib wrapper
- Fix bug when level 0 used with Z_HUFFMAN or Z_RLE
- Add --debug (-d) option to ./configure to define ZLIB_DEBUG
- Fix bugs in creating a very large gzip header
- Add uncompress2() function, which returns the input size used
- Assure that deflateParams() will not switch functions mid-block
- Dramatically speed up deflation for level 0 (storing)
- Add gzfread(), duplicating the interface of fread()
- Add gzfwrite(), duplicating the interface of fwrite()
- Add deflateGetDictionary() function
- Use snprintf() for later versions of Microsoft C
- Fix *Init macros to use z_ prefix when requested
- Replace as400 with os400 for OS/400 support [Monnerat]
- Add crc32_z() and adler32_z() functions with size_t lengths
- Update Visual Studio project files [AraHaan]

2 files changed, 15 insertions, 5 deletions

diff --git a/zlib/contrib/vstudio/vc10/zlib.rc b/zlib/contrib/vstudio/vc10/zlib.rc
index 73f6476..f1c19bc 100644
--- a/zlib/contrib/vstudio/vc10/zlib.rc
+++ b/zlib/contrib/vstudio/vc10/zlib.rc
@@ -2,8 +2,8 @@
 

 #define IDR_VERSION1  1

 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE

-  FILEVERSION	 1,2,8,0

-  PRODUCTVERSION 1,2,8,0

+  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\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/zlib/contrib/vstudio/vc10/zlibvc.def b/zlib/contrib/vstudio/vc10/zlibvc.def
index 6367046..54e683d 100644
--- a/zlib/contrib/vstudio/vc10/zlibvc.def
+++ b/zlib/contrib/vstudio/vc10/zlibvc.def
@@ -1,7 +1,7 @@
 LIBRARY

 ; zlib data compression and ZIP file I/O library

 

-VERSION		1.2.8

+VERSION		1.2

 

 EXPORTS

         adler32                                  @1

@@ -141,3 +141,13 @@ EXPORTS
 ; zlib1 v1.2.8 added:

         inflateGetDictionary                    @166

         gzvprintf                               @167

+

+; zlib1 v1.2.9 added:

+        inflateCodesUsed                        @168

+        inflateValidate                         @169

+        uncompress2                             @170

+        gzfread                                 @171

+        gzfwrite                                @172

+        deflateGetDictionary                    @173

+        adler32_z                               @174

+        crc32_z                                 @175