The Tor Browser: modules/zlib/src/ChangeLog@6474c204b198 (annotated)

modules/zlib/src/ChangeLog@6474c204b198 (annotated)

modules/zlib/src/ChangeLog

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

                 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
 - Restore gzgetc_ for backward compatibility with 1.2.6
 - Fix build with non-GNU make on Solaris
 - Require gcc 4.0 or later on Mac OS X to use the hidden attribute
 - Include unistd.h for Watcom C
 - Use __WATCOMC__ instead of __WATCOM__
 - Do not use the visibility attribute if NO_VIZ defined
 - Improve the detection of no hidden visibility attribute
 - Avoid using __int64 for gcc or solo compilation
 - Cast to char * in gzprintf to avoid warnings [Zinser]
 - Fix make_vms.com for VAX [Zinser]
 - Don't use library or built-in byte swaps
 - Simplify test and use of gcc hidden attribute
 - Fix bug in gzclose_w() when gzwrite() fails to allocate memory
 - Add "x" (O_EXCL) and "e" (O_CLOEXEC) modes support to gzopen()
 - Fix bug in test/minigzip.c for configure --solo
 - Fix contrib/vstudio project link errors [Mohanathas]
 - Add ability to choose the builder in make_vms.com [Schweda]
 - Add DESTDIR support to mingw32 win32/Makefile.gcc
 - Fix comments in win32/Makefile.gcc for proper usage
 - Allow overriding the default install locations for cmake
 - Generate and install the pkg-config file with cmake
 - Build both a static and a shared version of zlib with cmake
 - Include version symbols for cmake builds
 - If using cmake with MSVC, add the source directory to the includes
 - Remove unneeded EXTRA_CFLAGS from win32/Makefile.gcc [Truta]
 - Move obsolete emx makefile to old [Truta]
 - Allow the use of -Wundef when compiling or using zlib
 - Avoid the use of the -u option with mktemp
 - Improve inflate() documentation on the use of Z_FINISH
 - Recognize clang as gcc
 - Add gzopen_w() in Windows for wide character path names
 - Rename zconf.h in CMakeLists.txt to move it out of the way
 - Add source directory in CMakeLists.txt for building examples
 - Look in build directory for zlib.pc in CMakeLists.txt
 - Remove gzflags from zlibvc.def in vc9 and vc10
 - Fix contrib/minizip compilation in the MinGW environment
 - Update ./configure for Solaris, support --64 [Mooney]
 - Remove -R. from Solaris shared build (possible security issue)
 - Avoid race condition for parallel make (-j) running example
 - Fix type mismatch between get_crc_table() and crc_table
 - Fix parsing of version with "-" in CMakeLists.txt [Snider, Ziegler]
 - Fix the path to zlib.map in CMakeLists.txt
 - Force the native libtool in Mac OS X to avoid GNU libtool [Beebe]
 - Add instructions to win32/Makefile.gcc for shared install [Torri]
 Changes in 1.2.6.1 (12 Feb 2012)
 - Avoid the use of the Objective-C reserved name "id"
 - Include io.h in gzguts.h for Microsoft compilers
 - Fix problem with ./configure --prefix and gzgetc macro
 - Include gz_header definition when compiling zlib solo
 - Put gzflags() functionality back in zutil.c
 - Avoid library header include in crc32.c for Z_SOLO
 - Use name in GCC_CLASSIC as C compiler for coverage testing, if set
 - Minor cleanup in contrib/minizip/zip.c [Vollant]
 - Update make_vms.com [Zinser]
 - Remove unnecessary gzgetc_ function
 - Use optimized byte swap operations for Microsoft and GNU [Snyder]
 - Fix minor typo in zlib.h comments [Rzesniowiecki]
 Changes in 1.2.6 (29 Jan 2012)
 - Update the Pascal interface in contrib/pascal
 - Fix function numbers for gzgetc_ in zlibvc.def files
 - Fix configure.ac for contrib/minizip [Schiffer]
 - Fix large-entry detection in minizip on 64-bit systems [Schiffer]
 - Have ./configure use the compiler return code for error indication
 - Fix CMakeLists.txt for cross compilation [McClure]
 - Fix contrib/minizip/zip.c for 64-bit architectures [Dalsnes]
 - Fix compilation of contrib/minizip on FreeBSD [Marquez]
 - Correct suggested usages in win32/Makefile.msc [Shachar, Horvath]
 - Include io.h for Turbo C / Borland C on all platforms [Truta]
 - Make version explicit in contrib/minizip/configure.ac [Bosmans]
 - Avoid warning for no encryption in contrib/minizip/zip.c [Vollant]
 - Minor cleanup up contrib/minizip/unzip.c [Vollant]
 - Fix bug when compiling minizip with C++ [Vollant]
 - Protect for long name and extra fields in contrib/minizip [Vollant]
 - Avoid some warnings in contrib/minizip [Vollant]
 - Add -I../.. -L../.. to CFLAGS for minizip and miniunzip
 - Add missing libs to minizip linker command
 - Add support for VPATH builds in contrib/minizip
 - Add an --enable-demos option to contrib/minizip/configure
 - Add the generation of configure.log by ./configure
 - Exit when required parameters not provided to win32/Makefile.gcc
 - Have gzputc return the character written instead of the argument
 - Use the -m option on ldconfig for BSD systems [Tobias]
 - Correct in zlib.map when deflateResetKeep was added
 Changes in 1.2.5.3 (15 Jan 2012)
 - Restore gzgetc function for binary compatibility
 - Do not use _lseeki64 under Borland C++ [Truta]
 - Update win32/Makefile.msc to build test/*.c [Truta]
 - Remove old/visualc6 given CMakefile and other alternatives
 - Update AS400 build files and documentation [Monnerat]
 - Update win32/Makefile.gcc to build test/*.c [Truta]
 - Permit stronger flushes after Z_BLOCK flushes
 - Avoid extraneous empty blocks when doing empty flushes
 - Permit Z_NULL arguments to deflatePending
 - Allow deflatePrime() to insert bits in the middle of a stream
 - Remove second empty static block for Z_PARTIAL_FLUSH
 - Write out all of the available bits when using Z_BLOCK
 - Insert the first two strings in the hash table after a flush
 Changes in 1.2.5.2 (17 Dec 2011)
 - fix ld error: unable to find version dependency 'ZLIB_1.2.5'
 - use relative symlinks for shared libs
 - Avoid searching past window for Z_RLE strategy
 - Assure that high-water mark initialization is always applied in deflate
 - Add assertions to fill_window() in deflate.c to match comments
 - Update python link in README
 - Correct spelling error in gzread.c
 - Fix bug in gzgets() for a concatenated empty gzip stream
 - Correct error in comment for gz_make()
 - Change gzread() and related to ignore junk after gzip streams
 - Allow gzread() and related to continue after gzclearerr()
 - Allow gzrewind() and gzseek() after a premature end-of-file
 - Simplify gzseek() now that raw after gzip is ignored
 - Change gzgetc() to a macro for speed (~40% speedup in testing)
 - Fix gzclose() to return the actual error last encountered
 - Always add large file support for windows
 - Include zconf.h for windows large file support
 - Include zconf.h.cmakein for windows large file support
 - Update zconf.h.cmakein on make distclean
 - Merge vestigial vsnprintf determination from zutil.h to gzguts.h
 - Clarify how gzopen() appends in zlib.h comments
 - Correct documentation of gzdirect() since junk at end now ignored
 - Add a transparent write mode to gzopen() when 'T' is in the mode
 - Update python link in zlib man page
 - Get inffixed.h and MAKEFIXED result to match
 - Add a ./config --solo option to make zlib subset with no libary use
 - Add undocumented inflateResetKeep() function for CAB file decoding
 - Add --cover option to ./configure for gcc coverage testing
 - Add #define ZLIB_CONST option to use const in the z_stream interface
 - Add comment to gzdopen() in zlib.h to use dup() when using fileno()
 - Note behavior of uncompress() to provide as much data as it can
 - Add files in contrib/minizip to aid in building libminizip
 - Split off AR options in Makefile.in and configure
 - Change ON macro to Z_ARG to avoid application conflicts
 - Facilitate compilation with Borland C++ for pragmas and vsnprintf
 - Include io.h for Turbo C / Borland C++
 - Move example.c and minigzip.c to test/
 - Simplify incomplete code table filling in inflate_table()
 - Remove code from inflate.c and infback.c that is impossible to execute
 - Test the inflate code with full coverage
 - Allow deflateSetDictionary, inflateSetDictionary at any time (in raw)
 - Add deflateResetKeep and fix inflateResetKeep to retain dictionary
 - Fix gzwrite.c to accommodate reduced memory zlib compilation
 - Have inflate() with Z_FINISH avoid the allocation of a window
 - Do not set strm->adler when doing raw inflate
 - Fix gzeof() to behave just like feof() when read is not past end of file
 - Fix bug in gzread.c when end-of-file is reached
 - Avoid use of Z_BUF_ERROR in gz* functions except for premature EOF
 - Document gzread() capability to read concurrently written files
 - Remove hard-coding of resource compiler in CMakeLists.txt [Blammo]
 Changes in 1.2.5.1 (10 Sep 2011)
 - Update FAQ entry on shared builds (#13)
 - Avoid symbolic argument to chmod in Makefile.in
 - Fix bug and add consts in contrib/puff [Oberhumer]
 - Update contrib/puff/zeros.raw test file to have all block types
 - Add full coverage test for puff in contrib/puff/Makefile
 - Fix static-only-build install in Makefile.in
 - Fix bug in unzGetCurrentFileInfo() in contrib/minizip [Kuno]
 - Add libz.a dependency to shared in Makefile.in for parallel builds
 - Spell out "number" (instead of "nb") in zlib.h for total_in, total_out
 - Replace $(...) with `...` in configure for non-bash sh [Bowler]
 - Add darwin* to Darwin* and solaris* to SunOS\ 5* in configure [Groffen]
 - Add solaris* to Linux* in configure to allow gcc use [Groffen]
 - Add *bsd* to Linux* case in configure [Bar-Lev]
 - Add inffast.obj to dependencies in win32/Makefile.msc
 - Correct spelling error in deflate.h [Kohler]
 - Change libzdll.a again to libz.dll.a (!) in win32/Makefile.gcc
 - Add test to configure for GNU C looking for gcc in output of $cc -v
 - Add zlib.pc generation to win32/Makefile.gcc [Weigelt]
 - Fix bug in zlib.h for _FILE_OFFSET_BITS set and _LARGEFILE64_SOURCE not
 - Add comment in zlib.h that adler32_combine with len2 < 0 makes no sense
 - Make NO_DIVIDE option in adler32.c much faster (thanks to John Reiser)
 - Make stronger test in zconf.h to include unistd.h for LFS
 - Apply Darwin patches for 64-bit file offsets to contrib/minizip [Slack]
 - Fix zlib.h LFS support when Z_PREFIX used
 - Add updated as400 support (removed from old) [Monnerat]
 - Avoid deflate sensitivity to volatile input data
 - Avoid division in adler32_combine for NO_DIVIDE
 - Clarify the use of Z_FINISH with deflateBound() amount of space
 - Set binary for output file in puff.c
 - Use u4 type for crc_table to avoid conversion warnings
 - Apply casts in zlib.h to avoid conversion warnings
 - Add OF to prototypes for adler32_combine_ and crc32_combine_ [Miller]
 - Improve inflateSync() documentation to note indeterminancy
 - Add deflatePending() function to return the amount of pending output
 - Correct the spelling of "specification" in FAQ [Randers-Pehrson]
 - Add a check in configure for stdarg.h, use for gzprintf()
 - Check that pointers fit in ints when gzprint() compiled old style
 - Add dummy name before $(SHAREDLIBV) in Makefile [Bar-Lev, Bowler]
 - Delete line in configure that adds -L. libz.a to LDFLAGS [Weigelt]
 - Add debug records in assmebler code [Londer]
 - Update RFC references to use http://tools.ietf.org/html/... [Li]
 - Add --archs option, use of libtool to configure for Mac OS X [Borstel]
 Changes in 1.2.5 (19 Apr 2010)
 - Disable visibility attribute in win32/Makefile.gcc [Bar-Lev]
 - Default to libdir as sharedlibdir in configure [Nieder]
 - Update copyright dates on modified source files
 - Update trees.c to be able to generate modified trees.h
 - Exit configure for MinGW, suggesting win32/Makefile.gcc
 - Check for NULL path in gz_open [Homurlu]
 Changes in 1.2.4.5 (18 Apr 2010)
 - Set sharedlibdir in configure [Torok]
 - Set LDFLAGS in Makefile.in [Bar-Lev]
 - Avoid mkdir objs race condition in Makefile.in [Bowler]
 - Add ZLIB_INTERNAL in front of internal inter-module functions and arrays
 - Define ZLIB_INTERNAL to hide internal functions and arrays for GNU C
 - Don't use hidden attribute when it is a warning generator (e.g. Solaris)
 Changes in 1.2.4.4 (18 Apr 2010)
 - Fix CROSS_PREFIX executable testing, CHOST extract, mingw* [Torok]
 - Undefine _LARGEFILE64_SOURCE in zconf.h if it is zero, but not if empty
 - Try to use bash or ksh regardless of functionality of /bin/sh
 - Fix configure incompatibility with NetBSD sh
 - Remove attempt to run under bash or ksh since have better NetBSD fix
 - Fix win32/Makefile.gcc for MinGW [Bar-Lev]
 - Add diagnostic messages when using CROSS_PREFIX in configure
 - Added --sharedlibdir option to configure [Weigelt]
 - Use hidden visibility attribute when available [Frysinger]
 Changes in 1.2.4.3 (10 Apr 2010)
 - Only use CROSS_PREFIX in configure for ar and ranlib if they exist
 - Use CROSS_PREFIX for nm [Bar-Lev]
 - Assume _LARGEFILE64_SOURCE defined is equivalent to true
 - Avoid use of undefined symbols in #if with && and ||
 - Make *64 prototypes in gzguts.h consistent with functions
 - Add -shared load option for MinGW in configure [Bowler]
 - Move z_off64_t to public interface, use instead of off64_t
 - Remove ! from shell test in configure (not portable to Solaris)
 - Change +0 macro tests to -0 for possibly increased portability
 Changes in 1.2.4.2 (9 Apr 2010)
 - Add consistent carriage returns to readme.txt's in masmx86 and masmx64
 - Really provide prototypes for *64 functions when building without LFS
 - Only define unlink() in minigzip.c if unistd.h not included
 - Update README to point to contrib/vstudio project files
 - Move projects/vc6 to old/ and remove projects/
 - Include stdlib.h in minigzip.c for setmode() definition under WinCE
 - Clean up assembler builds in win32/Makefile.msc [Rowe]
 - Include sys/types.h for Microsoft for off_t definition
 - Fix memory leak on error in gz_open()
 - Symbolize nm as $NM in configure [Weigelt]
 - Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt]
 - Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined
 - Fix bug in gzeof() to take into account unused input data
 - Avoid initialization of structures with variables in puff.c
 - Updated win32/README-WIN32.txt [Rowe]
 Changes in 1.2.4.1 (28 Mar 2010)
 - Remove the use of [a-z] constructs for sed in configure [gentoo 310225]
 - Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech]
 - Restore "for debugging" comment on sprintf() in gzlib.c
 - Remove fdopen for MVS from gzguts.h
 - Put new README-WIN32.txt in win32 [Rowe]
 - Add check for shell to configure and invoke another shell if needed
 - Fix big fat stinking bug in gzseek() on uncompressed files
 - Remove vestigial F_OPEN64 define in zutil.h
 - Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE
 - Avoid errors on non-LFS systems when applications define LFS macros
 - Set EXE to ".exe" in configure for MINGW [Kahle]
 - Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill]
 - Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev]
 - Add DLL install in win32/makefile.gcc [Bar-Lev]
 - Allow Linux* or linux* from uname in configure [Bar-Lev]
 - Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev]
 - Add cross-compilation prefixes to configure [Bar-Lev]
 - Match type exactly in gz_load() invocation in gzread.c
 - Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func
 - Provide prototypes for *64 functions when building zlib without LFS
 - Don't use -lc when linking shared library on MinGW
 - Remove errno.h check in configure and vestigial errno code in zutil.h
 Changes in 1.2.4 (14 Mar 2010)
 - Fix VER3 extraction in configure for no fourth subversion
 - Update zlib.3, add docs to Makefile.in to make .pdf out of it
 - Add zlib.3.pdf to distribution
 - Don't set error code in gzerror() if passed pointer is NULL
 - Apply destination directory fixes to CMakeLists.txt [Lowman]
 - Move #cmakedefine's to a new zconf.in.cmakein
 - Restore zconf.h for builds that don't use configure or cmake
 - Add distclean to dummy Makefile for convenience
 - Update and improve INDEX, README, and FAQ
 - Update CMakeLists.txt for the return of zconf.h [Lowman]
 - Update contrib/vstudio/vc9 and vc10 [Vollant]
 - Change libz.dll.a back to libzdll.a in win32/Makefile.gcc
 - Apply license and readme changes to contrib/asm686 [Raiter]
 - Check file name lengths and add -c option in minigzip.c [Li]
 - Update contrib/amd64 and contrib/masmx86/ [Vollant]
 - Avoid use of "eof" parameter in trees.c to not shadow library variable
 - Update make_vms.com for removal of zlibdefs.h [Zinser]
 - Update assembler code and vstudio projects in contrib [Vollant]
 - Remove outdated assembler code contrib/masm686 and contrib/asm586
 - Remove old vc7 and vc8 from contrib/vstudio
 - Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe]
 - Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open()
 - Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant]
 - Remove *64 functions from win32/zlib.def (they're not 64-bit yet)
 - Fix bug in void-returning vsprintf() case in gzwrite.c
 - Fix name change from inflate.h in contrib/inflate86/inffas86.c
 - Check if temporary file exists before removing in make_vms.com [Zinser]
 - Fix make install and uninstall for --static option
 - Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta]
 - Update readme.txt in contrib/masmx64 and masmx86 to assemble
 Changes in 1.2.3.9 (21 Feb 2010)
 - Expunge gzio.c
 - Move as400 build information to old
 - Fix updates in contrib/minizip and contrib/vstudio
 - Add const to vsnprintf test in configure to avoid warnings [Weigelt]
 - Delete zconf.h (made by configure) [Weigelt]
 - Change zconf.in.h to zconf.h.in per convention [Weigelt]
 - Check for NULL buf in gzgets()
 - Return empty string for gzgets() with len == 1 (like fgets())
 - Fix description of gzgets() in zlib.h for end-of-file, NULL return
 - Update minizip to 1.1 [Vollant]
 - Avoid MSVC loss of data warnings in gzread.c, gzwrite.c
 - Note in zlib.h that gzerror() should be used to distinguish from EOF
 - Remove use of snprintf() from gzlib.c
 - Fix bug in gzseek()
 - Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant]
 - Fix zconf.h generation in CMakeLists.txt [Lowman]
 - Improve comments in zconf.h where modified by configure
 Changes in 1.2.3.8 (13 Feb 2010)
 - Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer]
 - Use z_off64_t in gz_zero() and gz_skip() to match state->skip
 - Avoid comparison problem when sizeof(int) == sizeof(z_off64_t)
 - Revert to Makefile.in from 1.2.3.6 (live with the clutter)
 - Fix missing error return in gzflush(), add zlib.h note
 - Add *64 functions to zlib.map [Levin]
 - Fix signed/unsigned comparison in gz_comp()
 - Use SFLAGS when testing shared linking in configure
 - Add --64 option to ./configure to use -m64 with gcc
 - Fix ./configure --help to correctly name options
 - Have make fail if a test fails [Levin]
 - Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson]
 - Remove assembler object files from contrib
 Changes in 1.2.3.7 (24 Jan 2010)
 - Always gzopen() with O_LARGEFILE if available
 - Fix gzdirect() to work immediately after gzopen() or gzdopen()
 - Make gzdirect() more precise when the state changes while reading
 - Improve zlib.h documentation in many places
 - Catch memory allocation failure in gz_open()
 - Complete close operation if seek forward in gzclose_w() fails
 - Return Z_ERRNO from gzclose_r() if close() fails
 - Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL
 - Return zero for gzwrite() errors to match zlib.h description
 - Return -1 on gzputs() error to match zlib.h description
 - Add zconf.in.h to allow recovery from configure modification [Weigelt]
 - Fix static library permissions in Makefile.in [Weigelt]
 - Avoid warnings in configure tests that hide functionality [Weigelt]
 - Add *BSD and DragonFly to Linux case in configure [gentoo 123571]
 - Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212]
 - Avoid access of uninitialized data for first inflateReset2 call [Gomes]
 - Keep object files in subdirectories to reduce the clutter somewhat
 - Remove default Makefile and zlibdefs.h, add dummy Makefile
 - Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_
 - Remove zlibdefs.h completely -- modify zconf.h instead
 Changes in 1.2.3.6 (17 Jan 2010)
 - Avoid void * arithmetic in gzread.c and gzwrite.c
 - Make compilers happier with const char * for gz_error message
 - Avoid unused parameter warning in inflate.c
 - Avoid signed-unsigned comparison warning in inflate.c
 - Indent #pragma's for traditional C
 - Fix usage of strwinerror() in glib.c, change to gz_strwinerror()
 - Correct email address in configure for system options
 - Update make_vms.com and add make_vms.com to contrib/minizip [Zinser]
 - Update zlib.map [Brown]
 - Fix Makefile.in for Solaris 10 make of example64 and minizip64 [Torok]
 - Apply various fixes to CMakeLists.txt [Lowman]
 - Add checks on len in gzread() and gzwrite()
 - Add error message for no more room for gzungetc()
 - Remove zlib version check in gzwrite()
 - Defer compression of gzprintf() result until need to
 - Use snprintf() in gzdopen() if available
 - Remove USE_MMAP configuration determination (only used by minigzip)
 - Remove examples/pigz.c (available separately)
 - Update examples/gun.c to 1.6
 Changes in 1.2.3.5 (8 Jan 2010)
 - Add space after #if in zutil.h for some compilers
 - Fix relatively harmless bug in deflate_fast() [Exarevsky]
 - Fix same problem in deflate_slow()
 - Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown]
 - Add deflate_rle() for faster Z_RLE strategy run-length encoding
 - Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding
 - Change name of "write" variable in inffast.c to avoid library collisions
 - Fix premature EOF from gzread() in gzio.c [Brown]
 - Use zlib header window size if windowBits is 0 in inflateInit2()
 - Remove compressBound() call in deflate.c to avoid linking compress.o
 - Replace use of errno in gz* with functions, support WinCE [Alves]
 - Provide alternative to perror() in minigzip.c for WinCE [Alves]
 - Don't use _vsnprintf on later versions of MSVC [Lowman]
 - Add CMake build script and input file [Lowman]
 - Update contrib/minizip to 1.1 [Svensson, Vollant]
 - Moved nintendods directory from contrib to .
 - Replace gzio.c with a new set of routines with the same functionality
 - Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above
 - Update contrib/minizip to 1.1b
 - Change gzeof() to return 0 on error instead of -1 to agree with zlib.h
 Changes in 1.2.3.4 (21 Dec 2009)
 - Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility
 - Update comments in configure and Makefile.in for default --shared
 - Fix test -z's in configure [Marquess]
 - Build examplesh and minigzipsh when not testing
 - Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h
 - Import LDFLAGS from the environment in configure
 - Fix configure to populate SFLAGS with discovered CFLAGS options
 - Adapt make_vms.com to the new Makefile.in [Zinser]
 - Add zlib2ansi script for C++ compilation [Marquess]
 - Add _FILE_OFFSET_BITS=64 test to make test (when applicable)
 - Add AMD64 assembler code for longest match to contrib [Teterin]
 - Include options from $SFLAGS when doing $LDSHARED
 - Simplify 64-bit file support by introducing z_off64_t type
 - Make shared object files in objs directory to work around old Sun cc
 - Use only three-part version number for Darwin shared compiles
 - Add rc option to ar in Makefile.in for when ./configure not run
 - Add -WI,-rpath,. to LDFLAGS for OSF 1 V4*
 - Set LD_LIBRARYN32_PATH for SGI IRIX shared compile
 - Protect against _FILE_OFFSET_BITS being defined when compiling zlib
 - Rename Makefile.in targets allstatic to static and allshared to shared
 - Fix static and shared Makefile.in targets to be independent
 - Correct error return bug in gz_open() by setting state [Brown]
 - Put spaces before ;;'s in configure for better sh compatibility
 - Add pigz.c (parallel implementation of gzip) to examples/
 - Correct constant in crc32.c to UL [Leventhal]
 - Reject negative lengths in crc32_combine()
 - Add inflateReset2() function to work like inflateEnd()/inflateInit2()
 - Include sys/types.h for _LARGEFILE64_SOURCE [Brown]
 - Correct typo in doc/algorithm.txt [Janik]
 - Fix bug in adler32_combine() [Zhu]
 - Catch missing-end-of-block-code error in all inflates and in puff
     Assures that random input to inflate eventually results in an error
 - Added enough.c (calculation of ENOUGH for inftrees.h) to examples/
 - Update ENOUGH and its usage to reflect discovered bounds
 - Fix gzerror() error report on empty input file [Brown]
 - Add ush casts in trees.c to avoid pedantic runtime errors
 - Fix typo in zlib.h uncompress() description [Reiss]
 - Correct inflate() comments with regard to automatic header detection
 - Remove deprecation comment on Z_PARTIAL_FLUSH (it stays)
 - Put new version of gzlog (2.0) in examples with interruption recovery
 - Add puff compile option to permit invalid distance-too-far streams
 - Add puff TEST command options, ability to read piped input
 - Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but
   _LARGEFILE64_SOURCE not defined
 - Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart
 - Fix deflateSetDictionary() to use all 32K for output consistency
 - Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h)
 - Clear bytes after deflate lookahead to avoid use of uninitialized data
 - Change a limit in inftrees.c to be more transparent to Coverity Prevent
 - Update win32/zlib.def with exported symbols from zlib.h
 - Correct spelling errors in zlib.h [Willem, Sobrado]
 - Allow Z_BLOCK for deflate() to force a new block
 - Allow negative bits in inflatePrime() to delete existing bit buffer
 - Add Z_TREES flush option to inflate() to return at end of trees
 - Add inflateMark() to return current state information for random access
 - Add Makefile for NintendoDS to contrib [Costa]
 - Add -w in configure compile tests to avoid spurious warnings [Beucler]
 - Fix typos in zlib.h comments for deflateSetDictionary()
 - Fix EOF detection in transparent gzread() [Maier]
 Changes in 1.2.3.3 (2 October 2006)
 - Make --shared the default for configure, add a --static option
 - Add compile option to permit invalid distance-too-far streams
 - Add inflateUndermine() function which is required to enable above
 - Remove use of "this" variable name for C++ compatibility [Marquess]
 - Add testing of shared library in make test, if shared library built
 - Use ftello() and fseeko() if available instead of ftell() and fseek()
 - Provide two versions of all functions that use the z_off_t type for
   binary compatibility -- a normal version and a 64-bit offset version,
   per the Large File Support Extension when _LARGEFILE64_SOURCE is
   defined; use the 64-bit versions by default when _FILE_OFFSET_BITS
   is defined to be 64
 - Add a --uname= option to configure to perhaps help with cross-compiling
 Changes in 1.2.3.2 (3 September 2006)
 - Turn off silly Borland warnings [Hay]
 - Use off64_t and define _LARGEFILE64_SOURCE when present
 - Fix missing dependency on inffixed.h in Makefile.in
 - Rig configure --shared to build both shared and static [Teredesai, Truta]
 - Remove zconf.in.h and instead create a new zlibdefs.h file
 - Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant]
 - Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt]
 Changes in 1.2.3.1 (16 August 2006)
 - Add watcom directory with OpenWatcom make files [Daniel]
 - Remove #undef of FAR in zconf.in.h for MVS [Fedtke]
 - Update make_vms.com [Zinser]
 - Use -fPIC for shared build in configure [Teredesai, Nicholson]
 - Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen]
 - Use fdopen() (not _fdopen()) for Interix in zutil.h [BŠck]
 - Add some FAQ entries about the contrib directory
 - Update the MVS question in the FAQ
 - Avoid extraneous reads after EOF in gzio.c [Brown]
 - Correct spelling of "successfully" in gzio.c [Randers-Pehrson]
 - Add comments to zlib.h about gzerror() usage [Brown]
 - Set extra flags in gzip header in gzopen() like deflate() does
 - Make configure options more compatible with double-dash conventions
   [Weigelt]
 - Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen]
 - Fix uninstall target in Makefile.in [Truta]
 - Add pkgconfig support [Weigelt]
 - Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt]
 - Replace set_data_type() with a more accurate detect_data_type() in
   trees.c, according to the txtvsbin.txt document [Truta]
 - Swap the order of #include <stdio.h> and #include "zlib.h" in
   gzio.c, example.c and minigzip.c [Truta]
 - Shut up annoying VS2005 warnings about standard C deprecation [Rowe,
   Truta] (where?)
 - Fix target "clean" from win32/Makefile.bor [Truta]
 - Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe]
 - Update zlib www home address in win32/DLL_FAQ.txt [Truta]
 - Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove]
 - Enable browse info in the "Debug" and "ASM Debug" configurations in
   the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta]
 - Add pkgconfig support [Weigelt]
 - Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h,
   for use in win32/zlib1.rc [Polushin, Rowe, Truta]
 - Add a document that explains the new text detection scheme to
   doc/txtvsbin.txt [Truta]
 - Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta]
 - Move algorithm.txt into doc/ [Truta]
 - Synchronize FAQ with website
 - Fix compressBound(), was low for some pathological cases [Fearnley]
 - Take into account wrapper variations in deflateBound()
 - Set examples/zpipe.c input and output to binary mode for Windows
 - Update examples/zlib_how.html with new zpipe.c (also web site)
 - Fix some warnings in examples/gzlog.c and examples/zran.c (it seems
   that gcc became pickier in 4.0)
 - Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain
   un-versioned, the patch adds versioning only for symbols introduced in
   zlib-1.2.0 or later.  It also declares as local those symbols which are
   not designed to be exported." [Levin]
 - Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure
 - Do not initialize global static by default in trees.c, add a response
   NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess]
 - Don't use strerror() in gzio.c under WinCE [Yakimov]
 - Don't use errno.h in zutil.h under WinCE [Yakimov]
 - Move arguments for AR to its usage to allow replacing ar [Marot]
 - Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson]
 - Improve inflateInit() and inflateInit2() documentation
 - Fix structure size comment in inflate.h
 - Change configure help option from --h* to --help [Santos]
 Changes in 1.2.3 (18 July 2005)
 - Apply security vulnerability fixes to contrib/infback9 as well
 - Clean up some text files (carriage returns, trailing space)
 - Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant]
 Changes in 1.2.2.4 (11 July 2005)
 - Add inflatePrime() function for starting inflation at bit boundary
 - Avoid some Visual C warnings in deflate.c
 - Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit
   compile
 - Fix some spelling errors in comments [Betts]
 - Correct inflateInit2() error return documentation in zlib.h
 - Add zran.c example of compressed data random access to examples
   directory, shows use of inflatePrime()
 - Fix cast for assignments to strm->state in inflate.c and infback.c
 - Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer]
 - Move declarations of gf2 functions to right place in crc32.c [Oberhumer]
 - Add cast in trees.c t avoid a warning [Oberhumer]
 - Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer]
 - Update make_vms.com [Zinser]
 - Initialize state->write in inflateReset() since copied in inflate_fast()
 - Be more strict on incomplete code sets in inflate_table() and increase
   ENOUGH and MAXD -- this repairs a possible security vulnerability for
   invalid inflate input.  Thanks to Tavis Ormandy and Markus Oberhumer for
   discovering the vulnerability and providing test cases.
 - Add ia64 support to configure for HP-UX [Smith]
 - Add error return to gzread() for format or i/o error [Levin]
 - Use malloc.h for OS/2 [Necasek]
 Changes in 1.2.2.3 (27 May 2005)
 - Replace 1U constants in inflate.c and inftrees.c for 64-bit compile
 - Typecast fread() return values in gzio.c [Vollant]
 - Remove trailing space in minigzip.c outmode (VC++ can't deal with it)
 - Fix crc check bug in gzread() after gzungetc() [Heiner]
 - Add the deflateTune() function to adjust internal compression parameters
 - Add a fast gzip decompressor, gun.c, to examples (use of inflateBack)
 - Remove an incorrect assertion in examples/zpipe.c
 - Add C++ wrapper in infback9.h [Donais]
 - Fix bug in inflateCopy() when decoding fixed codes
 - Note in zlib.h how much deflateSetDictionary() actually uses
 - Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used)
 - Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer]
 - Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer]
 - Add gzdirect() function to indicate transparent reads
 - Update contrib/minizip [Vollant]
 - Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer]
 - Add casts in crc32.c to avoid warnings [Oberhumer]
 - Add contrib/masmx64 [Vollant]
 - Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant]
 Changes in 1.2.2.2 (30 December 2004)
 - Replace structure assignments in deflate.c and inflate.c with zmemcpy to
   avoid implicit memcpy calls (portability for no-library compilation)
 - Increase sprintf() buffer size in gzdopen() to allow for large numbers
 - Add INFLATE_STRICT to check distances against zlib header
 - Improve WinCE errno handling and comments [Chang]
 - Remove comment about no gzip header processing in FAQ
 - Add Z_FIXED strategy option to deflateInit2() to force fixed trees
 - Add updated make_vms.com [Coghlan], update README
 - Create a new "examples" directory, move gzappend.c there, add zpipe.c,
   fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html.
 - Add FAQ entry and comments in deflate.c on uninitialized memory access
 - Add Solaris 9 make options in configure [Gilbert]
 - Allow strerror() usage in gzio.c for STDC
 - Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer]
 - Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant]
 - Use z_off_t for adler32_combine() and crc32_combine() lengths
 - Make adler32() much faster for small len
 - Use OS_CODE in deflate() default gzip header
 Changes in 1.2.2.1 (31 October 2004)
 - Allow inflateSetDictionary() call for raw inflate
 - Fix inflate header crc check bug for file names and comments
 - Add deflateSetHeader() and gz_header structure for custom gzip headers
 - Add inflateGetheader() to retrieve gzip headers
 - Add crc32_combine() and adler32_combine() functions
 - Add alloc_func, free_func, in_func, out_func to Z_PREFIX list
 - Use zstreamp consistently in zlib.h (inflate_back functions)
 - Remove GUNZIP condition from definition of inflate_mode in inflate.h
   and in contrib/inflate86/inffast.S [Truta, Anderson]
 - Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson]
 - Update projects/README.projects and projects/visualc6 [Truta]
 - Update win32/DLL_FAQ.txt [Truta]
 - Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta]
 - Deprecate Z_ASCII; use Z_TEXT instead [Truta]
 - Use a new algorithm for setting strm->data_type in trees.c [Truta]
 - Do not define an exit() prototype in zutil.c unless DEBUG defined
 - Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta]
 - Add comment in zlib.h for Z_NO_FLUSH parameter to deflate()
 - Fix Darwin build version identification [Peterson]
 Changes in 1.2.2 (3 October 2004)
 - Update zlib.h comments on gzip in-memory processing
 - Set adler to 1 in inflateReset() to support Java test suite [Walles]
 - Add contrib/dotzlib [Ravn]
 - Update win32/DLL_FAQ.txt [Truta]
 - Update contrib/minizip [Vollant]
 - Move contrib/visual-basic.txt to old/ [Truta]
 - Fix assembler builds in projects/visualc6/ [Truta]
 Changes in 1.2.1.2 (9 September 2004)
 - Update INDEX file
 - Fix trees.c to update strm->data_type (no one ever noticed!)
 - Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown]
 - Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE)
 - Add limited multitasking protection to DYNAMIC_CRC_TABLE
 - Add NO_vsnprintf for VMS in zutil.h [Mozilla]
 - Don't declare strerror() under VMS [Mozilla]
 - Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize
 - Update contrib/ada [Anisimkov]
 - Update contrib/minizip [Vollant]
 - Fix configure to not hardcode directories for Darwin [Peterson]
 - Fix gzio.c to not return error on empty files [Brown]
 - Fix indentation; update version in contrib/delphi/ZLib.pas and
   contrib/pascal/zlibpas.pas [Truta]
 - Update mkasm.bat in contrib/masmx86 [Truta]
 - Update contrib/untgz [Truta]
 - Add projects/README.projects [Truta]
 - Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta]
 - Update win32/DLL_FAQ.txt [Truta]
 - Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta]
 - Remove an unnecessary assignment to curr in inftrees.c [Truta]
 - Add OS/2 to exe builds in configure [Poltorak]
 - Remove err dummy parameter in zlib.h [Kientzle]
 Changes in 1.2.1.1 (9 January 2004)
 - Update email address in README
 - Several FAQ updates
 - Fix a big fat bug in inftrees.c that prevented decoding valid
   dynamic blocks with only literals and no distance codes --
   Thanks to "Hot Emu" for the bug report and sample file
 - Add a note to puff.c on no distance codes case.
 Changes in 1.2.1 (17 November 2003)
 - Remove a tab in contrib/gzappend/gzappend.c
 - Update some interfaces in contrib for new zlib functions
 - Update zlib version number in some contrib entries
 - Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta]
 - Support shared libraries on Hurd and KFreeBSD [Brown]
 - Fix error in NO_DIVIDE option of adler32.c
 Changes in 1.2.0.8 (4 November 2003)
 - Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas
 - Add experimental NO_DIVIDE #define in adler32.c
     - Possibly faster on some processors (let me know if it is)
 - Correct Z_BLOCK to not return on first inflate call if no wrap
 - Fix strm->data_type on inflate() return to correctly indicate EOB
 - Add deflatePrime() function for appending in the middle of a byte
 - Add contrib/gzappend for an example of appending to a stream
 - Update win32/DLL_FAQ.txt [Truta]
 - Delete Turbo C comment in README [Truta]
 - Improve some indentation in zconf.h [Truta]
 - Fix infinite loop on bad input in configure script [Church]
 - Fix gzeof() for concatenated gzip files [Johnson]
 - Add example to contrib/visual-basic.txt [Michael B.]
 - Add -p to mkdir's in Makefile.in [vda]
 - Fix configure to properly detect presence or lack of printf functions
 - Add AS400 support [Monnerat]
 - Add a little Cygwin support [Wilson]
 Changes in 1.2.0.7 (21 September 2003)
 - Correct some debug formats in contrib/infback9
 - Cast a type in a debug statement in trees.c
 - Change search and replace delimiter in configure from % to # [Beebe]
 - Update contrib/untgz to 0.2 with various fixes [Truta]
 - Add build support for Amiga [Nikl]
 - Remove some directories in old that have been updated to 1.2
 - Add dylib building for Mac OS X in configure and Makefile.in
 - Remove old distribution stuff from Makefile
 - Update README to point to DLL_FAQ.txt, and add comment on Mac OS X
 - Update links in README
 Changes in 1.2.0.6 (13 September 2003)
 - Minor FAQ updates
 - Update contrib/minizip to 1.00 [Vollant]
 - Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]
 - Update POSTINC comment for 68060 [Nikl]
 - Add contrib/infback9 with deflate64 decoding (unsupported)
 - For MVS define NO_vsnprintf and undefine FAR [van Burik]
 - Add pragma for fdopen on MVS [van Burik]
 Changes in 1.2.0.5 (8 September 2003)
 - Add OF to inflateBackEnd() declaration in zlib.h
 - Remember start when using gzdopen in the middle of a file
 - Use internal off_t counters in gz* functions to properly handle seeks
 - Perform more rigorous check for distance-too-far in inffast.c
 - Add Z_BLOCK flush option to return from inflate at block boundary
 - Set strm->data_type on return from inflate
     - Indicate bits unused, if at block boundary, and if in last block
 - Replace size_t with ptrdiff_t in crc32.c, and check for correct size
 - Add condition so old NO_DEFLATE define still works for compatibility
 - FAQ update regarding the Windows DLL [Truta]
 - INDEX update: add qnx entry, remove aix entry [Truta]
 - Install zlib.3 into mandir [Wilson]
 - Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]
 - Adapt the zlib interface to the new DLL convention guidelines [Truta]
 - Introduce ZLIB_WINAPI macro to allow the export of functions using
   the WINAPI calling convention, for Visual Basic [Vollant, Truta]
 - Update msdos and win32 scripts and makefiles [Truta]
 - Export symbols by name, not by ordinal, in win32/zlib.def [Truta]
 - Add contrib/ada [Anisimkov]
 - Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]
 - Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]
 - Add contrib/masm686 [Truta]
 - Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm
   [Truta, Vollant]
 - Update contrib/delphi; rename to contrib/pascal; add example [Truta]
 - Remove contrib/delphi2; add a new contrib/delphi [Truta]
 - Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,
   and fix some method prototypes [Truta]
 - Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip
   [Truta]
 - Avoid the use of backslash (\) in contrib/minizip [Vollant]
 - Fix file time handling in contrib/untgz; update makefiles [Truta]
 - Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines
   [Vollant]
 - Remove contrib/vstudio/vc15_16 [Vollant]
 - Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]
 - Update README.contrib [Truta]
 - Invert the assignment order of match_head and s->prev[...] in
   INSERT_STRING [Truta]
 - Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings
   [Truta]
 - Compare function pointers with 0, not with NULL or Z_NULL [Truta]
 - Fix prototype of syncsearch in inflate.c [Truta]
 - Introduce ASMINF macro to be enabled when using an ASM implementation
   of inflate_fast [Truta]
 - Change NO_DEFLATE to NO_GZCOMPRESS [Truta]
 - Modify test_gzio in example.c to take a single file name as a
   parameter [Truta]
 - Exit the example.c program if gzopen fails [Truta]
 - Add type casts around strlen in example.c [Truta]
 - Remove casting to sizeof in minigzip.c; give a proper type
   to the variable compared with SUFFIX_LEN [Truta]
 - Update definitions of STDC and STDC99 in zconf.h [Truta]
 - Synchronize zconf.h with the new Windows DLL interface [Truta]
 - Use SYS16BIT instead of __32BIT__ to distinguish between
 - and 32-bit platforms [Truta]
 - Use far memory allocators in small 16-bit memory models for
   Turbo C [Truta]
 - Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in
   zlibCompileFlags [Truta]
 - Cygwin has vsnprintf [Wilson]
 - In Windows16, OS_CODE is 0, as in MSDOS [Truta]
 - In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]
 Changes in 1.2.0.4 (10 August 2003)
 - Minor FAQ updates
 - Be more strict when checking inflateInit2's windowBits parameter
 - Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well
 - Add gzip wrapper option to deflateInit2 using windowBits
 - Add updated QNX rule in configure and qnx directory [Bonnefoy]
 - Make inflate distance-too-far checks more rigorous
 - Clean up FAR usage in inflate
 - Add casting to sizeof() in gzio.c and minigzip.c
 Changes in 1.2.0.3 (19 July 2003)
 - Fix silly error in gzungetc() implementation [Vollant]
 - Update contrib/minizip and contrib/vstudio [Vollant]
 - Fix printf format in example.c
 - Correct cdecl support in zconf.in.h [Anisimkov]
 - Minor FAQ updates
 Changes in 1.2.0.2 (13 July 2003)
 - Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons
 - Attempt to avoid warnings in crc32.c for pointer-int conversion
 - Add AIX to configure, remove aix directory [Bakker]
 - Add some casts to minigzip.c
 - Improve checking after insecure sprintf() or vsprintf() calls
 - Remove #elif's from crc32.c
 - Change leave label to inf_leave in inflate.c and infback.c to avoid
   library conflicts
 - Remove inflate gzip decoding by default--only enable gzip decoding by
   special request for stricter backward compatibility
 - Add zlibCompileFlags() function to return compilation information
 - More typecasting in deflate.c to avoid warnings
 - Remove leading underscore from _Capital #defines [Truta]
 - Fix configure to link shared library when testing
 - Add some Windows CE target adjustments [Mai]
 - Remove #define ZLIB_DLL in zconf.h [Vollant]
 - Add zlib.3 [Rodgers]
 - Update RFC URL in deflate.c and algorithm.txt [Mai]
 - Add zlib_dll_FAQ.txt to contrib [Truta]
 - Add UL to some constants [Truta]
 - Update minizip and vstudio [Vollant]
 - Remove vestigial NEED_DUMMY_RETURN from zconf.in.h
 - Expand use of NO_DUMMY_DECL to avoid all dummy structures
 - Added iostream3 to contrib [Schwardt]
 - Replace rewind() with fseek() for WinCE [Truta]
 - Improve setting of zlib format compression level flags
     - Report 0 for huffman and rle strategies and for level == 0 or 1
     - Report 2 only for level == 6
 - Only deal with 64K limit when necessary at compile time [Truta]
 - Allow TOO_FAR check to be turned off at compile time [Truta]
 - Add gzclearerr() function [Souza]
 - Add gzungetc() function
 Changes in 1.2.0.1 (17 March 2003)
 - Add Z_RLE strategy for run-length encoding [Truta]
     - When Z_RLE requested, restrict matches to distance one
     - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE
 - Correct FASTEST compilation to allow level == 0
 - Clean up what gets compiled for FASTEST
 - Incorporate changes to zconf.in.h [Vollant]
     - Refine detection of Turbo C need for dummy returns
     - Refine ZLIB_DLL compilation
     - Include additional header file on VMS for off_t typedef
 - Try to use _vsnprintf where it supplants vsprintf [Vollant]
 - Add some casts in inffast.c
 - Enchance comments in zlib.h on what happens if gzprintf() tries to
   write more than 4095 bytes before compression
 - Remove unused state from inflateBackEnd()
 - Remove exit(0) from minigzip.c, example.c
 - Get rid of all those darn tabs
 - Add "check" target to Makefile.in that does the same thing as "test"
 - Add "mostlyclean" and "maintainer-clean" targets to Makefile.in
 - Update contrib/inflate86 [Anderson]
 - Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]
 - Add msdos and win32 directories with makefiles [Truta]
 - More additions and improvements to the FAQ
 Changes in 1.2.0 (9 March 2003)
 - New and improved inflate code
     - About 20% faster
     - Does not allocate 32K window unless and until needed
     - Automatically detects and decompresses gzip streams
     - Raw inflate no longer needs an extra dummy byte at end
     - Added inflateBack functions using a callback interface--even faster
       than inflate, useful for file utilities (gzip, zip)
     - Added inflateCopy() function to record state for random access on
       externally generated deflate streams (e.g. in gzip files)
     - More readable code (I hope)
 - New and improved crc32()
     - About 50% faster, thanks to suggestions from Rodney Brown
 - Add deflateBound() and compressBound() functions
 - Fix memory leak in deflateInit2()
 - Permit setting dictionary for raw deflate (for parallel deflate)
 - Fix const declaration for gzwrite()
 - Check for some malloc() failures in gzio.c
 - Fix bug in gzopen() on single-byte file 0x1f
 - Fix bug in gzread() on concatenated file with 0x1f at end of buffer
   and next buffer doesn't start with 0x8b
 - Fix uncompress() to return Z_DATA_ERROR on truncated input
 - Free memory at end of example.c
 - Remove MAX #define in trees.c (conflicted with some libraries)
 - Fix static const's in deflate.c, gzio.c, and zutil.[ch]
 - Declare malloc() and free() in gzio.c if STDC not defined
 - Use malloc() instead of calloc() in zutil.c if int big enough
 - Define STDC for AIX
 - Add aix/ with approach for compiling shared library on AIX
 - Add HP-UX support for shared libraries in configure
 - Add OpenUNIX support for shared libraries in configure
 - Use $cc instead of gcc to build shared library
 - Make prefix directory if needed when installing
 - Correct Macintosh avoidance of typedef Byte in zconf.h
 - Correct Turbo C memory allocation when under Linux
 - Use libz.a instead of -lz in Makefile (assure use of compiled library)
 - Update configure to check for snprintf or vsnprintf functions and their
   return value, warn during make if using an insecure function
 - Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that
   is lost when library is used--resolution is to build new zconf.h
 - Documentation improvements (in zlib.h):
     - Document raw deflate and inflate
     - Update RFCs URL
     - Point out that zlib and gzip formats are different
     - Note that Z_BUF_ERROR is not fatal
     - Document string limit for gzprintf() and possible buffer overflow
     - Note requirement on avail_out when flushing
     - Note permitted values of flush parameter of inflate()
 - Add some FAQs (and even answers) to the FAQ
 - Add contrib/inflate86/ for x86 faster inflate
 - Add contrib/blast/ for PKWare Data Compression Library decompression
 - Add contrib/puff/ simple inflate for deflate format description
 Changes in 1.1.4 (11 March 2002)
 - ZFREE was repeated on same allocation on some error conditions.
   This creates a security problem described in
   http://www.zlib.org/advisory-2002-03-11.txt
 - Returned incorrect error (Z_MEM_ERROR) on some invalid data
 - Avoid accesses before window for invalid distances with inflate window
   less than 32K.
 - force windowBits > 8 to avoid a bug in the encoder for a window size
   of 256 bytes. (A complete fix will be available in 1.1.5).
 Changes in 1.1.3 (9 July 1998)
 - fix "an inflate input buffer bug that shows up on rare but persistent
   occasions" (Mark)
 - fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
 - fix gzseek(..., SEEK_SET) in write mode
 - fix crc check after a gzeek (Frank Faubert)
 - fix miniunzip when the last entry in a zip file is itself a zip file
   (J Lillge)
 - add contrib/asm586 and contrib/asm686 (Brian Raiter)
   See http://www.muppetlabs.com/~breadbox/software/assembly.html
 - add support for Delphi 3 in contrib/delphi (Bob Dellaca)
 - add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
 - do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
 - use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
 - added a FAQ file
 - Support gzdopen on Mac with Metrowerks (Jason Linhart)
 - Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
 - define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
 - avoid some warnings with Borland C (Tom Tanner)
 - fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
 - emulate utime() for WIN32 in contrib/untgz  (Gilles Vollant)
 - allow several arguments to configure (Tim Mooney, Frodo Looijaard)
 - use libdir and includedir in Makefile.in (Tim Mooney)
 - support shared libraries on OSF1 V4 (Tim Mooney)
 - remove so_locations in "make clean"  (Tim Mooney)
 - fix maketree.c compilation error (Glenn, Mark)
 - Python interface to zlib now in Python 1.5 (Jeremy Hylton)
 - new Makefile.riscos (Rich Walker)
 - initialize static descriptors in trees.c for embedded targets (Nick Smith)
 - use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
 - add the OS/2 files in Makefile.in too (Andrew Zabolotny)
 - fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
 - fix maketree.c to allow clean compilation of inffixed.h (Mark)
 - fix parameter check in deflateCopy (Gunther Nikl)
 - cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
 - Many portability patches by Christian Spieler:
   . zutil.c, zutil.h: added "const" for zmem*
   . Make_vms.com: fixed some typos
   . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
   . msdos/Makefile.msc: remove "default rtl link library" info from obj files
   . msdos/Makefile.*: use model-dependent name for the built zlib library
   . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
      new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
 - use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
 - replace __far with _far for better portability (Christian Spieler, Tom Lane)
 - fix test for errno.h in configure (Tim Newsham)
 Changes in 1.1.2 (19 March 98)
 - added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
   See http://www.winimage.com/zLibDll/unzip.html
 - preinitialize the inflate tables for fixed codes, to make the code
   completely thread safe (Mark)
 - some simplifications and slight speed-up to the inflate code (Mark)
 - fix gzeof on non-compressed files (Allan Schrum)
 - add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
 - use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
 - added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
 - add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
 - do not wrap extern "C" around system includes (Tom Lane)
 - mention zlib binding for TCL in README (Andreas Kupries)
 - added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
 - allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
 - allow "configure --prefix $HOME" (Tim Mooney)
 - remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
 - move Makefile.sas to amiga/Makefile.sas
 Changes in 1.1.1 (27 Feb 98)
 - fix macros _tr_tally_* in deflate.h for debug mode  (Glenn Randers-Pehrson)
 - remove block truncation heuristic which had very marginal effect for zlib
   (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
   compression ratio on some files. This also allows inlining _tr_tally for
   matches in deflate_slow.
 - added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
 Changes in 1.1.0 (24 Feb 98)
 - do not return STREAM_END prematurely in inflate (John Bowler)
 - revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
 - compile with -DFASTEST to get compression code optimized for speed only
 - in minigzip, try mmap'ing the input file first (Miguel Albrecht)
 - increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
   on Sun but significant on HP)
 - add a pointer to experimental unzip library in README (Gilles Vollant)
 - initialize variable gcc in configure (Chris Herborth)
 Changes in 1.0.9 (17 Feb 1998)
 - added gzputs and gzgets functions
 - do not clear eof flag in gzseek (Mark Diekhans)
 - fix gzseek for files in transparent mode (Mark Diekhans)
 - do not assume that vsprintf returns the number of bytes written (Jens Krinke)
 - replace EXPORT with ZEXPORT to avoid conflict with other programs
 - added compress2 in zconf.h, zlib.def, zlib.dnt
 - new asm code from Gilles Vollant in contrib/asm386
 - simplify the inflate code (Mark):
  . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
  . ZALLOC the length list in inflate_trees_fixed() instead of using stack
  . ZALLOC the value area for huft_build() instead of using stack
  . Simplify Z_FINISH check in inflate()
 - Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
 - in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
 - in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
   the declaration of FAR (Gilles VOllant)
 - install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
 - read_buf buf parameter of type Bytef* instead of charf*
 - zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
 - do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
 - fix check for presence of directories in "make install" (Ian Willis)
 Changes in 1.0.8 (27 Jan 1998)
 - fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
 - fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
 - added compress2() to allow setting the compression level
 - include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
 - use constant arrays for the static trees in trees.c instead of computing
   them at run time (thanks to Ken Raeburn for this suggestion). To create
   trees.h, compile with GEN_TREES_H and run "make test".
 - check return code of example in "make test" and display result
 - pass minigzip command line options to file_compress
 - simplifying code of inflateSync to avoid gcc 2.8 bug
 - support CC="gcc -Wall" in configure -s (QingLong)
 - avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
 - fix test for shared library support to avoid compiler warnings
 - zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
 - check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
 - do not use fdopen for Metrowerks on Mac (Brad Pettit))
 - add checks for gzputc and gzputc in example.c
 - avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
 - use const for the CRC table (Ken Raeburn)
 - fixed "make uninstall" for shared libraries
 - use Tracev instead of Trace in infblock.c
 - in example.c use correct compressed length for test_sync
 - suppress +vnocompatwarnings in configure for HPUX (not always supported)
 Changes in 1.0.7 (20 Jan 1998)
 - fix gzseek which was broken in write mode
 - return error for gzseek to negative absolute position
 - fix configure for Linux (Chun-Chung Chen)
 - increase stack space for MSC (Tim Wegner)
 - get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
 - define EXPORTVA for gzprintf (Gilles Vollant)
 - added man page zlib.3 (Rick Rodgers)
 - for contrib/untgz, fix makedir() and improve Makefile
 - check gzseek in write mode in example.c
 - allocate extra buffer for seeks only if gzseek is actually called
 - avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
 - add inflateSyncPoint in zconf.h
 - fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
 Changes in 1.0.6 (19 Jan 1998)
 - add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
   gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
 - Fix a deflate bug occurring only with compression level 0 (thanks to
   Andy Buckler for finding this one).
 - In minigzip, pass transparently also the first byte for .Z files.
 - return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
 - check Z_FINISH in inflate (thanks to Marc Schluper)
 - Implement deflateCopy (thanks to Adam Costello)
 - make static libraries by default in configure, add --shared option.
 - move MSDOS or Windows specific files to directory msdos
 - suppress the notion of partial flush to simplify the interface
   (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
 - suppress history buffer provided by application to simplify the interface
   (this feature was not implemented anyway in 1.0.4)
 - next_in and avail_in must be initialized before calling inflateInit or
   inflateInit2
 - add EXPORT in all exported functions (for Windows DLL)
 - added Makefile.nt (thanks to Stephen Williams)
 - added the unsupported "contrib" directory:
    contrib/asm386/ by Gilles Vollant <info@winimage.com>
 asm code replacing longest_match().
    contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
         A C++ I/O streams interface to the zlib gz* functions
    contrib/iostream2/  by Tyge Løvset <Tyge.Lovset@cmr.no>
         Another C++ I/O streams interface
    contrib/untgz/  by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
         A very simple tar.gz file extractor using zlib
    contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
         How to use compress(), uncompress() and the gz* functions from VB.
 - pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
   level) in minigzip (thanks to Tom Lane)
 - use const for rommable constants in deflate
 - added test for gzseek and gztell in example.c
 - add undocumented function inflateSyncPoint() (hack for Paul Mackerras)
 - add undocumented function zError to convert error code to string
   (for Tim Smithers)
 - Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code.
 - Use default memcpy for Symantec MSDOS compiler.
 - Add EXPORT keyword for check_func (needed for Windows DLL)
 - add current directory to LD_LIBRARY_PATH for "make test"
 - create also a link for libz.so.1
 - added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)
 - use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)
 - added -soname for Linux in configure (Chun-Chung Chen,
 - assign numbers to the exported functions in zlib.def (for Windows DLL)
 - add advice in zlib.h for best usage of deflateSetDictionary
 - work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)
 - allow compilation with ANSI keywords only enabled for TurboC in large model
 - avoid "versionString"[0] (Borland bug)
 - add NEED_DUMMY_RETURN for Borland
 - use variable z_verbose for tracing in debug mode (L. Peter Deutsch).
 - allow compilation with CC
 - defined STDC for OS/2 (David Charlap)
 - limit external names to 8 chars for MVS (Thomas Lund)
 - in minigzip.c, use static buffers only for 16-bit systems
 - fix suffix check for "minigzip -d foo.gz"
 - do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)
 - use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)
 - added makelcc.bat for lcc-win32 (Tom St Denis)
 - in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
 - Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.
 - check for unistd.h in configure (for off_t)
 - remove useless check parameter in inflate_blocks_free
 - avoid useless assignment of s->check to itself in inflate_blocks_new
 - do not flush twice in gzclose (thanks to Ken Raeburn)
 - rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h
 - use NO_ERRNO_H instead of enumeration of operating systems with errno.h
 - work around buggy fclose on pipes for HP/UX
 - support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)
 - fix configure if CC is already equal to gcc
 Changes in 1.0.5 (3 Jan 98)
 - Fix inflate to terminate gracefully when fed corrupted or invalid data
 - Use const for rommable constants in inflate
 - Eliminate memory leaks on error conditions in inflate
 - Removed some vestigial code in inflate
 - Update web address in README
 Changes in 1.0.4 (24 Jul 96)
 - In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
   bit, so the decompressor could decompress all the correct data but went
   on to attempt decompressing extra garbage data. This affected minigzip too.
 - zlibVersion and gzerror return const char* (needed for DLL)
 - port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
 - use z_error only for DEBUG (avoid problem with DLLs)
 Changes in 1.0.3 (2 Jul 96)
 - use z_streamp instead of z_stream *, which is now a far pointer in MSDOS
   small and medium models; this makes the library incompatible with previous
   versions for these models. (No effect in large model or on other systems.)
 - return OK instead of BUF_ERROR if previous deflate call returned with
   avail_out as zero but there is nothing to do
 - added memcmp for non STDC compilers
 - define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly)
 - define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO)
 - better check for 16-bit mode MSC (avoids problem with Symantec)
 Changes in 1.0.2 (23 May 96)
 - added Windows DLL support
 - added a function zlibVersion (for the DLL support)
 - fixed declarations using Bytef in infutil.c (pb with MSDOS medium model)
 - Bytef is define's instead of typedef'd only for Borland C
 - avoid reading uninitialized memory in example.c
 - mention in README that the zlib format is now RFC1950
 - updated Makefile.dj2
 - added algorithm.doc
 Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
 - fix array overlay in deflate.c which sometimes caused bad compressed data
 - fix inflate bug with empty stored block
 - fix MSDOS medium model which was broken in 0.99
 - fix deflateParams() which could generated bad compressed data.
 - Bytef is define'd instead of typedef'ed (work around Borland bug)
 - added an INDEX file
 - new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
   Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
 - speed up adler32 for modern machines without auto-increment
 - added -ansi for IRIX in configure
 - static_init_done in trees.c is an int
 - define unlink as delete for VMS
 - fix configure for QNX
 - add configure branch for SCO and HPUX
 - avoid many warnings (unused variables, dead assignments, etc...)
 - no fdopen for BeOS
 - fix the Watcom fix for 32 bit mode (define FAR as empty)
 - removed redefinition of Byte for MKWERKS
 - work around an MWKERKS bug (incorrect merge of all .h files)
 Changes in 0.99 (27 Jan 96)
 - allow preset dictionary shared between compressor and decompressor
 - allow compression level 0 (no compression)
 - add deflateParams in zlib.h: allow dynamic change of compression level
   and compression strategy.
 - test large buffers and deflateParams in example.c
 - add optional "configure" to build zlib as a shared library
 - suppress Makefile.qnx, use configure instead
 - fixed deflate for 64-bit systems (detected on Cray)
 - fixed inflate_blocks for 64-bit systems (detected on Alpha)
 - declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2)
 - always return Z_BUF_ERROR when deflate() has nothing to do
 - deflateInit and inflateInit are now macros to allow version checking
 - prefix all global functions and types with z_ with -DZ_PREFIX
 - make falloc completely reentrant (inftrees.c)
 - fixed very unlikely race condition in ct_static_init
 - free in reverse order of allocation to help memory manager
 - use zlib-1.0/* instead of zlib/* inside the tar.gz
 - make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith
   -Wconversion -Wstrict-prototypes -Wmissing-prototypes"
 - allow gzread on concatenated .gz files
 - deflateEnd now returns Z_DATA_ERROR if it was premature
 - deflate is finally (?) fully deterministic (no matches beyond end of input)
 - Document Z_SYNC_FLUSH
 - add uninstall in Makefile
 - Check for __cpluplus in zlib.h
 - Better test in ct_align for partial flush
 - avoid harmless warnings for Borland C++
 - initialize hash_head in deflate.c
 - avoid warning on fdopen (gzio.c) for HP cc -Aa
 - include stdlib.h for STDC compilers
 - include errno.h for Cray
 - ignore error if ranlib doesn't exist
 - call ranlib twice for NeXTSTEP
 - use exec_prefix instead of prefix for libz.a
 - renamed ct_* as _tr_* to avoid conflict with applications
 - clear z->msg in inflateInit2 before any error return
 - initialize opaque in example.c, gzio.c, deflate.c and inflate.c
 - fixed typo in zconf.h (_GNUC__ => __GNUC__)
 - check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode)
 - fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
 - in fcalloc, normalize pointer if size > 65520 bytes
 - don't use special fcalloc for 32 bit Borland C++
 - use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc...
 - use Z_BINARY instead of BINARY
 - document that gzclose after gzdopen will close the file
 - allow "a" as mode in gzopen.
 - fix error checking in gzread
 - allow skipping .gz extra-field on pipes
 - added reference to Perl interface in README
 - put the crc table in FAR data (I dislike more and more the medium model :)
 - added get_crc_table
 - added a dimension to all arrays (Borland C can't count).
 - workaround Borland C bug in declaration of inflate_codes_new & inflate_fast
 - guard against multiple inclusion of *.h (for precompiled header on Mac)
 - Watcom C pretends to be Microsoft C small model even in 32 bit mode.
 - don't use unsized arrays to avoid silly warnings by Visual C++:
      warning C4746: 'inflate_mask' : unsized array treated as  '__far'
      (what's wrong with far data in far model?).
 - define enum out of inflate_blocks_state to allow compilation with C++
 Changes in 0.95 (16 Aug 95)
 - fix MSDOS small and medium model (now easier to adapt to any compiler)
 - inlined send_bits
 - fix the final (:-) bug for deflate with flush (output was correct but
   not completely flushed in rare occasions).
 - default window size is same for compression and decompression
   (it's now sufficient to set MAX_WBITS in zconf.h).
 - voidp -> voidpf and voidnp -> voidp (for consistency with other
   typedefs and because voidnp was not near in large model).
 Changes in 0.94 (13 Aug 95)
 - support MSDOS medium model
 - fix deflate with flush (could sometimes generate bad output)
 - fix deflateReset (zlib header was incorrectly suppressed)
 - added support for VMS
 - allow a compression level in gzopen()
 - gzflush now calls fflush
 - For deflate with flush, flush even if no more input is provided.
 - rename libgz.a as libz.a
 - avoid complex expression in infcodes.c triggering Turbo C bug
 - work around a problem with gcc on Alpha (in INSERT_STRING)
 - don't use inline functions (problem with some gcc versions)
 - allow renaming of Byte, uInt, etc... with #define.
 - avoid warning about (unused) pointer before start of array in deflate.c
 - avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c
 - avoid reserved word 'new' in trees.c
 Changes in 0.93 (25 June 95)
 - temporarily disable inline functions
 - make deflate deterministic
 - give enough lookahead for PARTIAL_FLUSH
 - Set binary mode for stdin/stdout in minigzip.c for OS/2
 - don't even use signed char in inflate (not portable enough)
 - fix inflate memory leak for segmented architectures
 Changes in 0.92 (3 May 95)
 - don't assume that char is signed (problem on SGI)
 - Clear bit buffer when starting a stored block
 - no memcpy on Pyramid
 - suppressed inftest.c
 - optimized fill_window, put longest_match inline for gcc
 - optimized inflate on stored blocks.
 - untabify all sources to simplify patches
 Changes in 0.91 (2 May 95)
 - Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
 - Document the memory requirements in zconf.h
 - added "make install"
 - fix sync search logic in inflateSync
 - deflate(Z_FULL_FLUSH) now works even if output buffer too short
 - after inflateSync, don't scare people with just "lo world"
 - added support for DJGPP
 Changes in 0.9 (1 May 95)
 - don't assume that zalloc clears the allocated memory (the TurboC bug
   was Mark's bug after all :)
 - let again gzread copy uncompressed data unchanged (was working in 0.71)
 - deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
 - added a test of inflateSync in example.c
 - moved MAX_WBITS to zconf.h because users might want to change that.
 - document explicitly that zalloc(64K) on MSDOS must return a normalized
   pointer (zero offset)
 - added Makefiles for Microsoft C, Turbo C, Borland C++
 - faster crc32()
 Changes in 0.8 (29 April 95)
 - added fast inflate (inffast.c)
 - deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
   is incompatible with previous versions of zlib which returned Z_OK.
 - work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
   (actually that was not a compiler bug, see 0.81 above)
 - gzread no longer reads one extra byte in certain cases
 - In gzio destroy(), don't reference a freed structure
 - avoid many warnings for MSDOS
 - avoid the ERROR symbol which is used by MS Windows
 Changes in 0.71 (14 April 95)
 - Fixed more MSDOS compilation problems :( There is still a bug with
   TurboC large model.
 Changes in 0.7 (14 April 95)
 - Added full inflate support.
 - Simplified the crc32() interface. The pre- and post-conditioning
   (one's complement) is now done inside crc32(). WARNING: this is
   incompatible with previous versions; see zlib.h for the new usage.
 Changes in 0.61 (12 April 95)
 - workaround for a bug in TurboC. example and minigzip now work on MSDOS.
 Changes in 0.6 (11 April 95)
 - added minigzip.c
 - added gzdopen to reopen a file descriptor as gzFile
 - added transparent reading of non-gziped files in gzread.
 - fixed bug in gzread (don't read crc as data)
 - fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
 - don't allocate big arrays in the stack (for MSDOS)
 - fix some MSDOS compilation problems
 Changes in 0.5:
 - do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
   not yet Z_FULL_FLUSH.
 - support decompression but only in a single step (forced Z_FINISH)
 - added opaque object for zalloc and zfree.
 - added deflateReset and inflateReset
 - added a variable zlib_version for consistency checking.
 - renamed the 'filter' parameter of deflateInit2 as 'strategy'.
   Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
 Changes in 0.4:
 - avoid "zip" everywhere, use zlib instead of ziplib.
 - suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
   if compression method == 8.
 - added adler32 and crc32
 - renamed deflateOptions as deflateInit2, call one or the other but not both
 - added the method parameter for deflateInit2.
 - added inflateInit2
 - simplied considerably deflateInit and inflateInit by not supporting
   user-provided history buffer. This is supported only in deflateInit2
   and inflateInit2.
 Changes in 0.3:
 - prefix all macro names with Z_
 - use Z_FINISH instead of deflateEnd to finish compression.
 - added Z_HUFFMAN_ONLY
 - added gzerror()

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