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1
2 ChangeLog file for zlib
3
4 Changes in 1.2.8.f-Proxmark3 (for Proxmark3 project only) (26 May 2015)
5 - disable decoding of fixed code blocks in deflate (eliminates the need
6 to store the fixed tree in RAM or ROM)
7 - disable generating fixed code blocks in inflate
8 - look harder for local optimum of consecutive matches and single literals
9 in inflate.
10 - stripped down version - unnecessary files from original distribution
11 are not included
12
13 Changes in 1.2.8 (28 Apr 2013)
14 - Update contrib/minizip/iowin32.c for Windows RT [Vollant]
15 - Do not force Z_CONST for C++
16 - Clean up contrib/vstudio [Ro§]
17 - Correct spelling error in zlib.h
18 - Fix mixed line endings in contrib/vstudio
19
20 Changes in 1.2.7.3 (13 Apr 2013)
21 - Fix version numbers and DLL names in contrib/vstudio/*/zlib.rc
22
23 Changes in 1.2.7.2 (13 Apr 2013)
24 - Change check for a four-byte type back to hexadecimal
25 - Fix typo in win32/Makefile.msc
26 - Add casts in gzwrite.c for pointer differences
27
28 Changes in 1.2.7.1 (24 Mar 2013)
29 - Replace use of unsafe string functions with snprintf if available
30 - Avoid including stddef.h on Windows for Z_SOLO compile [Niessink]
31 - Fix gzgetc undefine when Z_PREFIX set [Turk]
32 - Eliminate use of mktemp in Makefile (not always available)
33 - Fix bug in 'F' mode for gzopen()
34 - Add inflateGetDictionary() function
35 - Correct comment in deflate.h
36 - Use _snprintf for snprintf in Microsoft C
37 - On Darwin, only use /usr/bin/libtool if libtool is not Apple
38 - Delete "--version" file if created by "ar --version" [Richard G.]
39 - Fix configure check for veracity of compiler error return codes
40 - Fix CMake compilation of static lib for MSVC2010 x64
41 - Remove unused variable in infback9.c
42 - Fix argument checks in gzlog_compress() and gzlog_write()
43 - Clean up the usage of z_const and respect const usage within zlib
44 - Clean up examples/gzlog.[ch] comparisons of different types
45 - Avoid shift equal to bits in type (caused endless loop)
46 - Fix unintialized value bug in gzputc() introduced by const patches
47 - Fix memory allocation error in examples/zran.c [Nor]
48 - Fix bug where gzopen(), gzclose() would write an empty file
49 - Fix bug in gzclose() when gzwrite() runs out of memory
50 - Check for input buffer malloc failure in examples/gzappend.c
51 - Add note to contrib/blast to use binary mode in stdio
52 - Fix comparisons of differently signed integers in contrib/blast
53 - Check for invalid code length codes in contrib/puff
54 - Fix serious but very rare decompression bug in inftrees.c
55 - Update inflateBack() comments, since inflate() can be faster
56 - Use underscored I/O function names for WINAPI_FAMILY
57 - Add _tr_flush_bits to the external symbols prefixed by --zprefix
58 - Add contrib/vstudio/vc10 pre-build step for static only
59 - Quote --version-script argument in CMakeLists.txt
60 - Don't specify --version-script on Apple platforms in CMakeLists.txt
61 - Fix casting error in contrib/testzlib/testzlib.c
62 - Fix types in contrib/minizip to match result of get_crc_table()
63 - Simplify contrib/vstudio/vc10 with 'd' suffix
64 - Add TOP support to win32/Makefile.msc
65 - Suport i686 and amd64 assembler builds in CMakeLists.txt
66 - Fix typos in the use of _LARGEFILE64_SOURCE in zconf.h
67 - Add vc11 and vc12 build files to contrib/vstudio
68 - Add gzvprintf() as an undocumented function in zlib
69 - Fix configure for Sun shell
70 - Remove runtime check in configure for four-byte integer type
71 - Add casts and consts to ease user conversion to C++
72 - Add man pages for minizip and miniunzip
73 - In Makefile uninstall, don't rm if preceding cd fails
74 - Do not return Z_BUF_ERROR if deflateParam() has nothing to write
75
76 Changes in 1.2.7 (2 May 2012)
77 - Replace use of memmove() with a simple copy for portability
78 - Test for existence of strerror
79 - Restore gzgetc_ for backward compatibility with 1.2.6
80 - Fix build with non-GNU make on Solaris
81 - Require gcc 4.0 or later on Mac OS X to use the hidden attribute
82 - Include unistd.h for Watcom C
83 - Use __WATCOMC__ instead of __WATCOM__
84 - Do not use the visibility attribute if NO_VIZ defined
85 - Improve the detection of no hidden visibility attribute
86 - Avoid using __int64 for gcc or solo compilation
87 - Cast to char * in gzprintf to avoid warnings [Zinser]
88 - Fix make_vms.com for VAX [Zinser]
89 - Don't use library or built-in byte swaps
90 - Simplify test and use of gcc hidden attribute
91 - Fix bug in gzclose_w() when gzwrite() fails to allocate memory
92 - Add "x" (O_EXCL) and "e" (O_CLOEXEC) modes support to gzopen()
93 - Fix bug in test/minigzip.c for configure --solo
94 - Fix contrib/vstudio project link errors [Mohanathas]
95 - Add ability to choose the builder in make_vms.com [Schweda]
96 - Add DESTDIR support to mingw32 win32/Makefile.gcc
97 - Fix comments in win32/Makefile.gcc for proper usage
98 - Allow overriding the default install locations for cmake
99 - Generate and install the pkg-config file with cmake
100 - Build both a static and a shared version of zlib with cmake
101 - Include version symbols for cmake builds
102 - If using cmake with MSVC, add the source directory to the includes
103 - Remove unneeded EXTRA_CFLAGS from win32/Makefile.gcc [Truta]
104 - Move obsolete emx makefile to old [Truta]
105 - Allow the use of -Wundef when compiling or using zlib
106 - Avoid the use of the -u option with mktemp
107 - Improve inflate() documentation on the use of Z_FINISH
108 - Recognize clang as gcc
109 - Add gzopen_w() in Windows for wide character path names
110 - Rename zconf.h in CMakeLists.txt to move it out of the way
111 - Add source directory in CMakeLists.txt for building examples
112 - Look in build directory for zlib.pc in CMakeLists.txt
113 - Remove gzflags from zlibvc.def in vc9 and vc10
114 - Fix contrib/minizip compilation in the MinGW environment
115 - Update ./configure for Solaris, support --64 [Mooney]
116 - Remove -R. from Solaris shared build (possible security issue)
117 - Avoid race condition for parallel make (-j) running example
118 - Fix type mismatch between get_crc_table() and crc_table
119 - Fix parsing of version with "-" in CMakeLists.txt [Snider, Ziegler]
120 - Fix the path to zlib.map in CMakeLists.txt
121 - Force the native libtool in Mac OS X to avoid GNU libtool [Beebe]
122 - Add instructions to win32/Makefile.gcc for shared install [Torri]
123
124 Changes in 1.2.6.1 (12 Feb 2012)
125 - Avoid the use of the Objective-C reserved name "id"
126 - Include io.h in gzguts.h for Microsoft compilers
127 - Fix problem with ./configure --prefix and gzgetc macro
128 - Include gz_header definition when compiling zlib solo
129 - Put gzflags() functionality back in zutil.c
130 - Avoid library header include in crc32.c for Z_SOLO
131 - Use name in GCC_CLASSIC as C compiler for coverage testing, if set
132 - Minor cleanup in contrib/minizip/zip.c [Vollant]
133 - Update make_vms.com [Zinser]
134 - Remove unnecessary gzgetc_ function
135 - Use optimized byte swap operations for Microsoft and GNU [Snyder]
136 - Fix minor typo in zlib.h comments [Rzesniowiecki]
137
138 Changes in 1.2.6 (29 Jan 2012)
139 - Update the Pascal interface in contrib/pascal
140 - Fix function numbers for gzgetc_ in zlibvc.def files
141 - Fix configure.ac for contrib/minizip [Schiffer]
142 - Fix large-entry detection in minizip on 64-bit systems [Schiffer]
143 - Have ./configure use the compiler return code for error indication
144 - Fix CMakeLists.txt for cross compilation [McClure]
145 - Fix contrib/minizip/zip.c for 64-bit architectures [Dalsnes]
146 - Fix compilation of contrib/minizip on FreeBSD [Marquez]
147 - Correct suggested usages in win32/Makefile.msc [Shachar, Horvath]
148 - Include io.h for Turbo C / Borland C on all platforms [Truta]
149 - Make version explicit in contrib/minizip/configure.ac [Bosmans]
150 - Avoid warning for no encryption in contrib/minizip/zip.c [Vollant]
151 - Minor cleanup up contrib/minizip/unzip.c [Vollant]
152 - Fix bug when compiling minizip with C++ [Vollant]
153 - Protect for long name and extra fields in contrib/minizip [Vollant]
154 - Avoid some warnings in contrib/minizip [Vollant]
155 - Add -I../.. -L../.. to CFLAGS for minizip and miniunzip
156 - Add missing libs to minizip linker command
157 - Add support for VPATH builds in contrib/minizip
158 - Add an --enable-demos option to contrib/minizip/configure
159 - Add the generation of configure.log by ./configure
160 - Exit when required parameters not provided to win32/Makefile.gcc
161 - Have gzputc return the character written instead of the argument
162 - Use the -m option on ldconfig for BSD systems [Tobias]
163 - Correct in zlib.map when deflateResetKeep was added
164
165 Changes in 1.2.5.3 (15 Jan 2012)
166 - Restore gzgetc function for binary compatibility
167 - Do not use _lseeki64 under Borland C++ [Truta]
168 - Update win32/Makefile.msc to build test/*.c [Truta]
169 - Remove old/visualc6 given CMakefile and other alternatives
170 - Update AS400 build files and documentation [Monnerat]
171 - Update win32/Makefile.gcc to build test/*.c [Truta]
172 - Permit stronger flushes after Z_BLOCK flushes
173 - Avoid extraneous empty blocks when doing empty flushes
174 - Permit Z_NULL arguments to deflatePending
175 - Allow deflatePrime() to insert bits in the middle of a stream
176 - Remove second empty static block for Z_PARTIAL_FLUSH
177 - Write out all of the available bits when using Z_BLOCK
178 - Insert the first two strings in the hash table after a flush
179
180 Changes in 1.2.5.2 (17 Dec 2011)
181 - fix ld error: unable to find version dependency 'ZLIB_1.2.5'
182 - use relative symlinks for shared libs
183 - Avoid searching past window for Z_RLE strategy
184 - Assure that high-water mark initialization is always applied in deflate
185 - Add assertions to fill_window() in deflate.c to match comments
186 - Update python link in README
187 - Correct spelling error in gzread.c
188 - Fix bug in gzgets() for a concatenated empty gzip stream
189 - Correct error in comment for gz_make()
190 - Change gzread() and related to ignore junk after gzip streams
191 - Allow gzread() and related to continue after gzclearerr()
192 - Allow gzrewind() and gzseek() after a premature end-of-file
193 - Simplify gzseek() now that raw after gzip is ignored
194 - Change gzgetc() to a macro for speed (~40% speedup in testing)
195 - Fix gzclose() to return the actual error last encountered
196 - Always add large file support for windows
197 - Include zconf.h for windows large file support
198 - Include zconf.h.cmakein for windows large file support
199 - Update zconf.h.cmakein on make distclean
200 - Merge vestigial vsnprintf determination from zutil.h to gzguts.h
201 - Clarify how gzopen() appends in zlib.h comments
202 - Correct documentation of gzdirect() since junk at end now ignored
203 - Add a transparent write mode to gzopen() when 'T' is in the mode
204 - Update python link in zlib man page
205 - Get inffixed.h and MAKEFIXED result to match
206 - Add a ./config --solo option to make zlib subset with no libary use
207 - Add undocumented inflateResetKeep() function for CAB file decoding
208 - Add --cover option to ./configure for gcc coverage testing
209 - Add #define ZLIB_CONST option to use const in the z_stream interface
210 - Add comment to gzdopen() in zlib.h to use dup() when using fileno()
211 - Note behavior of uncompress() to provide as much data as it can
212 - Add files in contrib/minizip to aid in building libminizip
213 - Split off AR options in Makefile.in and configure
214 - Change ON macro to Z_ARG to avoid application conflicts
215 - Facilitate compilation with Borland C++ for pragmas and vsnprintf
216 - Include io.h for Turbo C / Borland C++
217 - Move example.c and minigzip.c to test/
218 - Simplify incomplete code table filling in inflate_table()
219 - Remove code from inflate.c and infback.c that is impossible to execute
220 - Test the inflate code with full coverage
221 - Allow deflateSetDictionary, inflateSetDictionary at any time (in raw)
222 - Add deflateResetKeep and fix inflateResetKeep to retain dictionary
223 - Fix gzwrite.c to accommodate reduced memory zlib compilation
224 - Have inflate() with Z_FINISH avoid the allocation of a window
225 - Do not set strm->adler when doing raw inflate
226 - Fix gzeof() to behave just like feof() when read is not past end of file
227 - Fix bug in gzread.c when end-of-file is reached
228 - Avoid use of Z_BUF_ERROR in gz* functions except for premature EOF
229 - Document gzread() capability to read concurrently written files
230 - Remove hard-coding of resource compiler in CMakeLists.txt [Blammo]
231
232 Changes in 1.2.5.1 (10 Sep 2011)
233 - Update FAQ entry on shared builds (#13)
234 - Avoid symbolic argument to chmod in Makefile.in
235 - Fix bug and add consts in contrib/puff [Oberhumer]
236 - Update contrib/puff/zeros.raw test file to have all block types
237 - Add full coverage test for puff in contrib/puff/Makefile
238 - Fix static-only-build install in Makefile.in
239 - Fix bug in unzGetCurrentFileInfo() in contrib/minizip [Kuno]
240 - Add libz.a dependency to shared in Makefile.in for parallel builds
241 - Spell out "number" (instead of "nb") in zlib.h for total_in, total_out
242 - Replace $(...) with `...` in configure for non-bash sh [Bowler]
243 - Add darwin* to Darwin* and solaris* to SunOS\ 5* in configure [Groffen]
244 - Add solaris* to Linux* in configure to allow gcc use [Groffen]
245 - Add *bsd* to Linux* case in configure [Bar-Lev]
246 - Add inffast.obj to dependencies in win32/Makefile.msc
247 - Correct spelling error in deflate.h [Kohler]
248 - Change libzdll.a again to libz.dll.a (!) in win32/Makefile.gcc
249 - Add test to configure for GNU C looking for gcc in output of $cc -v
250 - Add zlib.pc generation to win32/Makefile.gcc [Weigelt]
251 - Fix bug in zlib.h for _FILE_OFFSET_BITS set and _LARGEFILE64_SOURCE not
252 - Add comment in zlib.h that adler32_combine with len2 < 0 makes no sense
253 - Make NO_DIVIDE option in adler32.c much faster (thanks to John Reiser)
254 - Make stronger test in zconf.h to include unistd.h for LFS
255 - Apply Darwin patches for 64-bit file offsets to contrib/minizip [Slack]
256 - Fix zlib.h LFS support when Z_PREFIX used
257 - Add updated as400 support (removed from old) [Monnerat]
258 - Avoid deflate sensitivity to volatile input data
259 - Avoid division in adler32_combine for NO_DIVIDE
260 - Clarify the use of Z_FINISH with deflateBound() amount of space
261 - Set binary for output file in puff.c
262 - Use u4 type for crc_table to avoid conversion warnings
263 - Apply casts in zlib.h to avoid conversion warnings
264 - Add OF to prototypes for adler32_combine_ and crc32_combine_ [Miller]
265 - Improve inflateSync() documentation to note indeterminancy
266 - Add deflatePending() function to return the amount of pending output
267 - Correct the spelling of "specification" in FAQ [Randers-Pehrson]
268 - Add a check in configure for stdarg.h, use for gzprintf()
269 - Check that pointers fit in ints when gzprint() compiled old style
270 - Add dummy name before $(SHAREDLIBV) in Makefile [Bar-Lev, Bowler]
271 - Delete line in configure that adds -L. libz.a to LDFLAGS [Weigelt]
272 - Add debug records in assmebler code [Londer]
273 - Update RFC references to use http://tools.ietf.org/html/... [Li]
274 - Add --archs option, use of libtool to configure for Mac OS X [Borstel]
275
276 Changes in 1.2.5 (19 Apr 2010)
277 - Disable visibility attribute in win32/Makefile.gcc [Bar-Lev]
278 - Default to libdir as sharedlibdir in configure [Nieder]
279 - Update copyright dates on modified source files
280 - Update trees.c to be able to generate modified trees.h
281 - Exit configure for MinGW, suggesting win32/Makefile.gcc
282 - Check for NULL path in gz_open [Homurlu]
283
284 Changes in 1.2.4.5 (18 Apr 2010)
285 - Set sharedlibdir in configure [Torok]
286 - Set LDFLAGS in Makefile.in [Bar-Lev]
287 - Avoid mkdir objs race condition in Makefile.in [Bowler]
288 - Add ZLIB_INTERNAL in front of internal inter-module functions and arrays
289 - Define ZLIB_INTERNAL to hide internal functions and arrays for GNU C
290 - Don't use hidden attribute when it is a warning generator (e.g. Solaris)
291
292 Changes in 1.2.4.4 (18 Apr 2010)
293 - Fix CROSS_PREFIX executable testing, CHOST extract, mingw* [Torok]
294 - Undefine _LARGEFILE64_SOURCE in zconf.h if it is zero, but not if empty
295 - Try to use bash or ksh regardless of functionality of /bin/sh
296 - Fix configure incompatibility with NetBSD sh
297 - Remove attempt to run under bash or ksh since have better NetBSD fix
298 - Fix win32/Makefile.gcc for MinGW [Bar-Lev]
299 - Add diagnostic messages when using CROSS_PREFIX in configure
300 - Added --sharedlibdir option to configure [Weigelt]
301 - Use hidden visibility attribute when available [Frysinger]
302
303 Changes in 1.2.4.3 (10 Apr 2010)
304 - Only use CROSS_PREFIX in configure for ar and ranlib if they exist
305 - Use CROSS_PREFIX for nm [Bar-Lev]
306 - Assume _LARGEFILE64_SOURCE defined is equivalent to true
307 - Avoid use of undefined symbols in #if with && and ||
308 - Make *64 prototypes in gzguts.h consistent with functions
309 - Add -shared load option for MinGW in configure [Bowler]
310 - Move z_off64_t to public interface, use instead of off64_t
311 - Remove ! from shell test in configure (not portable to Solaris)
312 - Change +0 macro tests to -0 for possibly increased portability
313
314 Changes in 1.2.4.2 (9 Apr 2010)
315 - Add consistent carriage returns to readme.txt's in masmx86 and masmx64
316 - Really provide prototypes for *64 functions when building without LFS
317 - Only define unlink() in minigzip.c if unistd.h not included
318 - Update README to point to contrib/vstudio project files
319 - Move projects/vc6 to old/ and remove projects/
320 - Include stdlib.h in minigzip.c for setmode() definition under WinCE
321 - Clean up assembler builds in win32/Makefile.msc [Rowe]
322 - Include sys/types.h for Microsoft for off_t definition
323 - Fix memory leak on error in gz_open()
324 - Symbolize nm as $NM in configure [Weigelt]
325 - Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt]
326 - Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined
327 - Fix bug in gzeof() to take into account unused input data
328 - Avoid initialization of structures with variables in puff.c
329 - Updated win32/README-WIN32.txt [Rowe]
330
331 Changes in 1.2.4.1 (28 Mar 2010)
332 - Remove the use of [a-z] constructs for sed in configure [gentoo 310225]
333 - Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech]
334 - Restore "for debugging" comment on sprintf() in gzlib.c
335 - Remove fdopen for MVS from gzguts.h
336 - Put new README-WIN32.txt in win32 [Rowe]
337 - Add check for shell to configure and invoke another shell if needed
338 - Fix big fat stinking bug in gzseek() on uncompressed files
339 - Remove vestigial F_OPEN64 define in zutil.h
340 - Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE
341 - Avoid errors on non-LFS systems when applications define LFS macros
342 - Set EXE to ".exe" in configure for MINGW [Kahle]
343 - Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill]
344 - Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev]
345 - Add DLL install in win32/makefile.gcc [Bar-Lev]
346 - Allow Linux* or linux* from uname in configure [Bar-Lev]
347 - Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev]
348 - Add cross-compilation prefixes to configure [Bar-Lev]
349 - Match type exactly in gz_load() invocation in gzread.c
350 - Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func
351 - Provide prototypes for *64 functions when building zlib without LFS
352 - Don't use -lc when linking shared library on MinGW
353 - Remove errno.h check in configure and vestigial errno code in zutil.h
354
355 Changes in 1.2.4 (14 Mar 2010)
356 - Fix VER3 extraction in configure for no fourth subversion
357 - Update zlib.3, add docs to Makefile.in to make .pdf out of it
358 - Add zlib.3.pdf to distribution
359 - Don't set error code in gzerror() if passed pointer is NULL
360 - Apply destination directory fixes to CMakeLists.txt [Lowman]
361 - Move #cmakedefine's to a new zconf.in.cmakein
362 - Restore zconf.h for builds that don't use configure or cmake
363 - Add distclean to dummy Makefile for convenience
364 - Update and improve INDEX, README, and FAQ
365 - Update CMakeLists.txt for the return of zconf.h [Lowman]
366 - Update contrib/vstudio/vc9 and vc10 [Vollant]
367 - Change libz.dll.a back to libzdll.a in win32/Makefile.gcc
368 - Apply license and readme changes to contrib/asm686 [Raiter]
369 - Check file name lengths and add -c option in minigzip.c [Li]
370 - Update contrib/amd64 and contrib/masmx86/ [Vollant]
371 - Avoid use of "eof" parameter in trees.c to not shadow library variable
372 - Update make_vms.com for removal of zlibdefs.h [Zinser]
373 - Update assembler code and vstudio projects in contrib [Vollant]
374 - Remove outdated assembler code contrib/masm686 and contrib/asm586
375 - Remove old vc7 and vc8 from contrib/vstudio
376 - Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe]
377 - Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open()
378 - Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant]
379 - Remove *64 functions from win32/zlib.def (they're not 64-bit yet)
380 - Fix bug in void-returning vsprintf() case in gzwrite.c
381 - Fix name change from inflate.h in contrib/inflate86/inffas86.c
382 - Check if temporary file exists before removing in make_vms.com [Zinser]
383 - Fix make install and uninstall for --static option
384 - Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta]
385 - Update readme.txt in contrib/masmx64 and masmx86 to assemble
386
387 Changes in 1.2.3.9 (21 Feb 2010)
388 - Expunge gzio.c
389 - Move as400 build information to old
390 - Fix updates in contrib/minizip and contrib/vstudio
391 - Add const to vsnprintf test in configure to avoid warnings [Weigelt]
392 - Delete zconf.h (made by configure) [Weigelt]
393 - Change zconf.in.h to zconf.h.in per convention [Weigelt]
394 - Check for NULL buf in gzgets()
395 - Return empty string for gzgets() with len == 1 (like fgets())
396 - Fix description of gzgets() in zlib.h for end-of-file, NULL return
397 - Update minizip to 1.1 [Vollant]
398 - Avoid MSVC loss of data warnings in gzread.c, gzwrite.c
399 - Note in zlib.h that gzerror() should be used to distinguish from EOF
400 - Remove use of snprintf() from gzlib.c
401 - Fix bug in gzseek()
402 - Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant]
403 - Fix zconf.h generation in CMakeLists.txt [Lowman]
404 - Improve comments in zconf.h where modified by configure
405
406 Changes in 1.2.3.8 (13 Feb 2010)
407 - Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer]
408 - Use z_off64_t in gz_zero() and gz_skip() to match state->skip
409 - Avoid comparison problem when sizeof(int) == sizeof(z_off64_t)
410 - Revert to Makefile.in from 1.2.3.6 (live with the clutter)
411 - Fix missing error return in gzflush(), add zlib.h note
412 - Add *64 functions to zlib.map [Levin]
413 - Fix signed/unsigned comparison in gz_comp()
414 - Use SFLAGS when testing shared linking in configure
415 - Add --64 option to ./configure to use -m64 with gcc
416 - Fix ./configure --help to correctly name options
417 - Have make fail if a test fails [Levin]
418 - Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson]
419 - Remove assembler object files from contrib
420
421 Changes in 1.2.3.7 (24 Jan 2010)
422 - Always gzopen() with O_LARGEFILE if available
423 - Fix gzdirect() to work immediately after gzopen() or gzdopen()
424 - Make gzdirect() more precise when the state changes while reading
425 - Improve zlib.h documentation in many places
426 - Catch memory allocation failure in gz_open()
427 - Complete close operation if seek forward in gzclose_w() fails
428 - Return Z_ERRNO from gzclose_r() if close() fails
429 - Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL
430 - Return zero for gzwrite() errors to match zlib.h description
431 - Return -1 on gzputs() error to match zlib.h description
432 - Add zconf.in.h to allow recovery from configure modification [Weigelt]
433 - Fix static library permissions in Makefile.in [Weigelt]
434 - Avoid warnings in configure tests that hide functionality [Weigelt]
435 - Add *BSD and DragonFly to Linux case in configure [gentoo 123571]
436 - Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212]
437 - Avoid access of uninitialized data for first inflateReset2 call [Gomes]
438 - Keep object files in subdirectories to reduce the clutter somewhat
439 - Remove default Makefile and zlibdefs.h, add dummy Makefile
440 - Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_
441 - Remove zlibdefs.h completely -- modify zconf.h instead
442
443 Changes in 1.2.3.6 (17 Jan 2010)
444 - Avoid void * arithmetic in gzread.c and gzwrite.c
445 - Make compilers happier with const char * for gz_error message
446 - Avoid unused parameter warning in inflate.c
447 - Avoid signed-unsigned comparison warning in inflate.c
448 - Indent #pragma's for traditional C
449 - Fix usage of strwinerror() in glib.c, change to gz_strwinerror()
450 - Correct email address in configure for system options
451 - Update make_vms.com and add make_vms.com to contrib/minizip [Zinser]
452 - Update zlib.map [Brown]
453 - Fix Makefile.in for Solaris 10 make of example64 and minizip64 [Torok]
454 - Apply various fixes to CMakeLists.txt [Lowman]
455 - Add checks on len in gzread() and gzwrite()
456 - Add error message for no more room for gzungetc()
457 - Remove zlib version check in gzwrite()
458 - Defer compression of gzprintf() result until need to
459 - Use snprintf() in gzdopen() if available
460 - Remove USE_MMAP configuration determination (only used by minigzip)
461 - Remove examples/pigz.c (available separately)
462 - Update examples/gun.c to 1.6
463
464 Changes in 1.2.3.5 (8 Jan 2010)
465 - Add space after #if in zutil.h for some compilers
466 - Fix relatively harmless bug in deflate_fast() [Exarevsky]
467 - Fix same problem in deflate_slow()
468 - Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown]
469 - Add deflate_rle() for faster Z_RLE strategy run-length encoding
470 - Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding
471 - Change name of "write" variable in inffast.c to avoid library collisions
472 - Fix premature EOF from gzread() in gzio.c [Brown]
473 - Use zlib header window size if windowBits is 0 in inflateInit2()
474 - Remove compressBound() call in deflate.c to avoid linking compress.o
475 - Replace use of errno in gz* with functions, support WinCE [Alves]
476 - Provide alternative to perror() in minigzip.c for WinCE [Alves]
477 - Don't use _vsnprintf on later versions of MSVC [Lowman]
478 - Add CMake build script and input file [Lowman]
479 - Update contrib/minizip to 1.1 [Svensson, Vollant]
480 - Moved nintendods directory from contrib to .
481 - Replace gzio.c with a new set of routines with the same functionality
482 - Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above
483 - Update contrib/minizip to 1.1b
484 - Change gzeof() to return 0 on error instead of -1 to agree with zlib.h
485
486 Changes in 1.2.3.4 (21 Dec 2009)
487 - Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility
488 - Update comments in configure and Makefile.in for default --shared
489 - Fix test -z's in configure [Marquess]
490 - Build examplesh and minigzipsh when not testing
491 - Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h
492 - Import LDFLAGS from the environment in configure
493 - Fix configure to populate SFLAGS with discovered CFLAGS options
494 - Adapt make_vms.com to the new Makefile.in [Zinser]
495 - Add zlib2ansi script for C++ compilation [Marquess]
496 - Add _FILE_OFFSET_BITS=64 test to make test (when applicable)
497 - Add AMD64 assembler code for longest match to contrib [Teterin]
498 - Include options from $SFLAGS when doing $LDSHARED
499 - Simplify 64-bit file support by introducing z_off64_t type
500 - Make shared object files in objs directory to work around old Sun cc
501 - Use only three-part version number for Darwin shared compiles
502 - Add rc option to ar in Makefile.in for when ./configure not run
503 - Add -WI,-rpath,. to LDFLAGS for OSF 1 V4*
504 - Set LD_LIBRARYN32_PATH for SGI IRIX shared compile
505 - Protect against _FILE_OFFSET_BITS being defined when compiling zlib
506 - Rename Makefile.in targets allstatic to static and allshared to shared
507 - Fix static and shared Makefile.in targets to be independent
508 - Correct error return bug in gz_open() by setting state [Brown]
509 - Put spaces before ;;'s in configure for better sh compatibility
510 - Add pigz.c (parallel implementation of gzip) to examples/
511 - Correct constant in crc32.c to UL [Leventhal]
512 - Reject negative lengths in crc32_combine()
513 - Add inflateReset2() function to work like inflateEnd()/inflateInit2()
514 - Include sys/types.h for _LARGEFILE64_SOURCE [Brown]
515 - Correct typo in doc/algorithm.txt [Janik]
516 - Fix bug in adler32_combine() [Zhu]
517 - Catch missing-end-of-block-code error in all inflates and in puff
518 Assures that random input to inflate eventually results in an error
519 - Added enough.c (calculation of ENOUGH for inftrees.h) to examples/
520 - Update ENOUGH and its usage to reflect discovered bounds
521 - Fix gzerror() error report on empty input file [Brown]
522 - Add ush casts in trees.c to avoid pedantic runtime errors
523 - Fix typo in zlib.h uncompress() description [Reiss]
524 - Correct inflate() comments with regard to automatic header detection
525 - Remove deprecation comment on Z_PARTIAL_FLUSH (it stays)
526 - Put new version of gzlog (2.0) in examples with interruption recovery
527 - Add puff compile option to permit invalid distance-too-far streams
528 - Add puff TEST command options, ability to read piped input
529 - Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but
530 _LARGEFILE64_SOURCE not defined
531 - Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart
532 - Fix deflateSetDictionary() to use all 32K for output consistency
533 - Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h)
534 - Clear bytes after deflate lookahead to avoid use of uninitialized data
535 - Change a limit in inftrees.c to be more transparent to Coverity Prevent
536 - Update win32/zlib.def with exported symbols from zlib.h
537 - Correct spelling errors in zlib.h [Willem, Sobrado]
538 - Allow Z_BLOCK for deflate() to force a new block
539 - Allow negative bits in inflatePrime() to delete existing bit buffer
540 - Add Z_TREES flush option to inflate() to return at end of trees
541 - Add inflateMark() to return current state information for random access
542 - Add Makefile for NintendoDS to contrib [Costa]
543 - Add -w in configure compile tests to avoid spurious warnings [Beucler]
544 - Fix typos in zlib.h comments for deflateSetDictionary()
545 - Fix EOF detection in transparent gzread() [Maier]
546
547 Changes in 1.2.3.3 (2 October 2006)
548 - Make --shared the default for configure, add a --static option
549 - Add compile option to permit invalid distance-too-far streams
550 - Add inflateUndermine() function which is required to enable above
551 - Remove use of "this" variable name for C++ compatibility [Marquess]
552 - Add testing of shared library in make test, if shared library built
553 - Use ftello() and fseeko() if available instead of ftell() and fseek()
554 - Provide two versions of all functions that use the z_off_t type for
555 binary compatibility -- a normal version and a 64-bit offset version,
556 per the Large File Support Extension when _LARGEFILE64_SOURCE is
557 defined; use the 64-bit versions by default when _FILE_OFFSET_BITS
558 is defined to be 64
559 - Add a --uname= option to configure to perhaps help with cross-compiling
560
561 Changes in 1.2.3.2 (3 September 2006)
562 - Turn off silly Borland warnings [Hay]
563 - Use off64_t and define _LARGEFILE64_SOURCE when present
564 - Fix missing dependency on inffixed.h in Makefile.in
565 - Rig configure --shared to build both shared and static [Teredesai, Truta]
566 - Remove zconf.in.h and instead create a new zlibdefs.h file
567 - Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant]
568 - Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt]
569
570 Changes in 1.2.3.1 (16 August 2006)
571 - Add watcom directory with OpenWatcom make files [Daniel]
572 - Remove #undef of FAR in zconf.in.h for MVS [Fedtke]
573 - Update make_vms.com [Zinser]
574 - Use -fPIC for shared build in configure [Teredesai, Nicholson]
575 - Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen]
576 - Use fdopen() (not _fdopen()) for Interix in zutil.h [B\8ack]
577 - Add some FAQ entries about the contrib directory
578 - Update the MVS question in the FAQ
579 - Avoid extraneous reads after EOF in gzio.c [Brown]
580 - Correct spelling of "successfully" in gzio.c [Randers-Pehrson]
581 - Add comments to zlib.h about gzerror() usage [Brown]
582 - Set extra flags in gzip header in gzopen() like deflate() does
583 - Make configure options more compatible with double-dash conventions
584 [Weigelt]
585 - Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen]
586 - Fix uninstall target in Makefile.in [Truta]
587 - Add pkgconfig support [Weigelt]
588 - Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt]
589 - Replace set_data_type() with a more accurate detect_data_type() in
590 trees.c, according to the txtvsbin.txt document [Truta]
591 - Swap the order of #include <stdio.h> and #include "zlib.h" in
592 gzio.c, example.c and minigzip.c [Truta]
593 - Shut up annoying VS2005 warnings about standard C deprecation [Rowe,
594 Truta] (where?)
595 - Fix target "clean" from win32/Makefile.bor [Truta]
596 - Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe]
597 - Update zlib www home address in win32/DLL_FAQ.txt [Truta]
598 - Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove]
599 - Enable browse info in the "Debug" and "ASM Debug" configurations in
600 the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta]
601 - Add pkgconfig support [Weigelt]
602 - Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h,
603 for use in win32/zlib1.rc [Polushin, Rowe, Truta]
604 - Add a document that explains the new text detection scheme to
605 doc/txtvsbin.txt [Truta]
606 - Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta]
607 - Move algorithm.txt into doc/ [Truta]
608 - Synchronize FAQ with website
609 - Fix compressBound(), was low for some pathological cases [Fearnley]
610 - Take into account wrapper variations in deflateBound()
611 - Set examples/zpipe.c input and output to binary mode for Windows
612 - Update examples/zlib_how.html with new zpipe.c (also web site)
613 - Fix some warnings in examples/gzlog.c and examples/zran.c (it seems
614 that gcc became pickier in 4.0)
615 - Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain
616 un-versioned, the patch adds versioning only for symbols introduced in
617 zlib-1.2.0 or later. It also declares as local those symbols which are
618 not designed to be exported." [Levin]
619 - Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure
620 - Do not initialize global static by default in trees.c, add a response
621 NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess]
622 - Don't use strerror() in gzio.c under WinCE [Yakimov]
623 - Don't use errno.h in zutil.h under WinCE [Yakimov]
624 - Move arguments for AR to its usage to allow replacing ar [Marot]
625 - Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson]
626 - Improve inflateInit() and inflateInit2() documentation
627 - Fix structure size comment in inflate.h
628 - Change configure help option from --h* to --help [Santos]
629
630 Changes in 1.2.3 (18 July 2005)
631 - Apply security vulnerability fixes to contrib/infback9 as well
632 - Clean up some text files (carriage returns, trailing space)
633 - Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant]
634
635 Changes in 1.2.2.4 (11 July 2005)
636 - Add inflatePrime() function for starting inflation at bit boundary
637 - Avoid some Visual C warnings in deflate.c
638 - Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit
639 compile
640 - Fix some spelling errors in comments [Betts]
641 - Correct inflateInit2() error return documentation in zlib.h
642 - Add zran.c example of compressed data random access to examples
643 directory, shows use of inflatePrime()
644 - Fix cast for assignments to strm->state in inflate.c and infback.c
645 - Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer]
646 - Move declarations of gf2 functions to right place in crc32.c [Oberhumer]
647 - Add cast in trees.c t avoid a warning [Oberhumer]
648 - Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer]
649 - Update make_vms.com [Zinser]
650 - Initialize state->write in inflateReset() since copied in inflate_fast()
651 - Be more strict on incomplete code sets in inflate_table() and increase
652 ENOUGH and MAXD -- this repairs a possible security vulnerability for
653 invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for
654 discovering the vulnerability and providing test cases.
655 - Add ia64 support to configure for HP-UX [Smith]
656 - Add error return to gzread() for format or i/o error [Levin]
657 - Use malloc.h for OS/2 [Necasek]
658
659 Changes in 1.2.2.3 (27 May 2005)
660 - Replace 1U constants in inflate.c and inftrees.c for 64-bit compile
661 - Typecast fread() return values in gzio.c [Vollant]
662 - Remove trailing space in minigzip.c outmode (VC++ can't deal with it)
663 - Fix crc check bug in gzread() after gzungetc() [Heiner]
664 - Add the deflateTune() function to adjust internal compression parameters
665 - Add a fast gzip decompressor, gun.c, to examples (use of inflateBack)
666 - Remove an incorrect assertion in examples/zpipe.c
667 - Add C++ wrapper in infback9.h [Donais]
668 - Fix bug in inflateCopy() when decoding fixed codes
669 - Note in zlib.h how much deflateSetDictionary() actually uses
670 - Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used)
671 - Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer]
672 - Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer]
673 - Add gzdirect() function to indicate transparent reads
674 - Update contrib/minizip [Vollant]
675 - Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer]
676 - Add casts in crc32.c to avoid warnings [Oberhumer]
677 - Add contrib/masmx64 [Vollant]
678 - Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant]
679
680 Changes in 1.2.2.2 (30 December 2004)
681 - Replace structure assignments in deflate.c and inflate.c with zmemcpy to
682 avoid implicit memcpy calls (portability for no-library compilation)
683 - Increase sprintf() buffer size in gzdopen() to allow for large numbers
684 - Add INFLATE_STRICT to check distances against zlib header
685 - Improve WinCE errno handling and comments [Chang]
686 - Remove comment about no gzip header processing in FAQ
687 - Add Z_FIXED strategy option to deflateInit2() to force fixed trees
688 - Add updated make_vms.com [Coghlan], update README
689 - Create a new "examples" directory, move gzappend.c there, add zpipe.c,
690 fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html.
691 - Add FAQ entry and comments in deflate.c on uninitialized memory access
692 - Add Solaris 9 make options in configure [Gilbert]
693 - Allow strerror() usage in gzio.c for STDC
694 - Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer]
695 - Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant]
696 - Use z_off_t for adler32_combine() and crc32_combine() lengths
697 - Make adler32() much faster for small len
698 - Use OS_CODE in deflate() default gzip header
699
700 Changes in 1.2.2.1 (31 October 2004)
701 - Allow inflateSetDictionary() call for raw inflate
702 - Fix inflate header crc check bug for file names and comments
703 - Add deflateSetHeader() and gz_header structure for custom gzip headers
704 - Add inflateGetheader() to retrieve gzip headers
705 - Add crc32_combine() and adler32_combine() functions
706 - Add alloc_func, free_func, in_func, out_func to Z_PREFIX list
707 - Use zstreamp consistently in zlib.h (inflate_back functions)
708 - Remove GUNZIP condition from definition of inflate_mode in inflate.h
709 and in contrib/inflate86/inffast.S [Truta, Anderson]
710 - Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson]
711 - Update projects/README.projects and projects/visualc6 [Truta]
712 - Update win32/DLL_FAQ.txt [Truta]
713 - Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta]
714 - Deprecate Z_ASCII; use Z_TEXT instead [Truta]
715 - Use a new algorithm for setting strm->data_type in trees.c [Truta]
716 - Do not define an exit() prototype in zutil.c unless DEBUG defined
717 - Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta]
718 - Add comment in zlib.h for Z_NO_FLUSH parameter to deflate()
719 - Fix Darwin build version identification [Peterson]
720
721 Changes in 1.2.2 (3 October 2004)
722 - Update zlib.h comments on gzip in-memory processing
723 - Set adler to 1 in inflateReset() to support Java test suite [Walles]
724 - Add contrib/dotzlib [Ravn]
725 - Update win32/DLL_FAQ.txt [Truta]
726 - Update contrib/minizip [Vollant]
727 - Move contrib/visual-basic.txt to old/ [Truta]
728 - Fix assembler builds in projects/visualc6/ [Truta]
729
730 Changes in 1.2.1.2 (9 September 2004)
731 - Update INDEX file
732 - Fix trees.c to update strm->data_type (no one ever noticed!)
733 - Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown]
734 - Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE)
735 - Add limited multitasking protection to DYNAMIC_CRC_TABLE
736 - Add NO_vsnprintf for VMS in zutil.h [Mozilla]
737 - Don't declare strerror() under VMS [Mozilla]
738 - Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize
739 - Update contrib/ada [Anisimkov]
740 - Update contrib/minizip [Vollant]
741 - Fix configure to not hardcode directories for Darwin [Peterson]
742 - Fix gzio.c to not return error on empty files [Brown]
743 - Fix indentation; update version in contrib/delphi/ZLib.pas and
744 contrib/pascal/zlibpas.pas [Truta]
745 - Update mkasm.bat in contrib/masmx86 [Truta]
746 - Update contrib/untgz [Truta]
747 - Add projects/README.projects [Truta]
748 - Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta]
749 - Update win32/DLL_FAQ.txt [Truta]
750 - Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta]
751 - Remove an unnecessary assignment to curr in inftrees.c [Truta]
752 - Add OS/2 to exe builds in configure [Poltorak]
753 - Remove err dummy parameter in zlib.h [Kientzle]
754
755 Changes in 1.2.1.1 (9 January 2004)
756 - Update email address in README
757 - Several FAQ updates
758 - Fix a big fat bug in inftrees.c that prevented decoding valid
759 dynamic blocks with only literals and no distance codes --
760 Thanks to "Hot Emu" for the bug report and sample file
761 - Add a note to puff.c on no distance codes case.
762
763 Changes in 1.2.1 (17 November 2003)
764 - Remove a tab in contrib/gzappend/gzappend.c
765 - Update some interfaces in contrib for new zlib functions
766 - Update zlib version number in some contrib entries
767 - Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta]
768 - Support shared libraries on Hurd and KFreeBSD [Brown]
769 - Fix error in NO_DIVIDE option of adler32.c
770
771 Changes in 1.2.0.8 (4 November 2003)
772 - Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas
773 - Add experimental NO_DIVIDE #define in adler32.c
774 - Possibly faster on some processors (let me know if it is)
775 - Correct Z_BLOCK to not return on first inflate call if no wrap
776 - Fix strm->data_type on inflate() return to correctly indicate EOB
777 - Add deflatePrime() function for appending in the middle of a byte
778 - Add contrib/gzappend for an example of appending to a stream
779 - Update win32/DLL_FAQ.txt [Truta]
780 - Delete Turbo C comment in README [Truta]
781 - Improve some indentation in zconf.h [Truta]
782 - Fix infinite loop on bad input in configure script [Church]
783 - Fix gzeof() for concatenated gzip files [Johnson]
784 - Add example to contrib/visual-basic.txt [Michael B.]
785 - Add -p to mkdir's in Makefile.in [vda]
786 - Fix configure to properly detect presence or lack of printf functions
787 - Add AS400 support [Monnerat]
788 - Add a little Cygwin support [Wilson]
789
790 Changes in 1.2.0.7 (21 September 2003)
791 - Correct some debug formats in contrib/infback9
792 - Cast a type in a debug statement in trees.c
793 - Change search and replace delimiter in configure from % to # [Beebe]
794 - Update contrib/untgz to 0.2 with various fixes [Truta]
795 - Add build support for Amiga [Nikl]
796 - Remove some directories in old that have been updated to 1.2
797 - Add dylib building for Mac OS X in configure and Makefile.in
798 - Remove old distribution stuff from Makefile
799 - Update README to point to DLL_FAQ.txt, and add comment on Mac OS X
800 - Update links in README
801
802 Changes in 1.2.0.6 (13 September 2003)
803 - Minor FAQ updates
804 - Update contrib/minizip to 1.00 [Vollant]
805 - Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]
806 - Update POSTINC comment for 68060 [Nikl]
807 - Add contrib/infback9 with deflate64 decoding (unsupported)
808 - For MVS define NO_vsnprintf and undefine FAR [van Burik]
809 - Add pragma for fdopen on MVS [van Burik]
810
811 Changes in 1.2.0.5 (8 September 2003)
812 - Add OF to inflateBackEnd() declaration in zlib.h
813 - Remember start when using gzdopen in the middle of a file
814 - Use internal off_t counters in gz* functions to properly handle seeks
815 - Perform more rigorous check for distance-too-far in inffast.c
816 - Add Z_BLOCK flush option to return from inflate at block boundary
817 - Set strm->data_type on return from inflate
818 - Indicate bits unused, if at block boundary, and if in last block
819 - Replace size_t with ptrdiff_t in crc32.c, and check for correct size
820 - Add condition so old NO_DEFLATE define still works for compatibility
821 - FAQ update regarding the Windows DLL [Truta]
822 - INDEX update: add qnx entry, remove aix entry [Truta]
823 - Install zlib.3 into mandir [Wilson]
824 - Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]
825 - Adapt the zlib interface to the new DLL convention guidelines [Truta]
826 - Introduce ZLIB_WINAPI macro to allow the export of functions using
827 the WINAPI calling convention, for Visual Basic [Vollant, Truta]
828 - Update msdos and win32 scripts and makefiles [Truta]
829 - Export symbols by name, not by ordinal, in win32/zlib.def [Truta]
830 - Add contrib/ada [Anisimkov]
831 - Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]
832 - Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]
833 - Add contrib/masm686 [Truta]
834 - Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm
835 [Truta, Vollant]
836 - Update contrib/delphi; rename to contrib/pascal; add example [Truta]
837 - Remove contrib/delphi2; add a new contrib/delphi [Truta]
838 - Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,
839 and fix some method prototypes [Truta]
840 - Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip
841 [Truta]
842 - Avoid the use of backslash (\) in contrib/minizip [Vollant]
843 - Fix file time handling in contrib/untgz; update makefiles [Truta]
844 - Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines
845 [Vollant]
846 - Remove contrib/vstudio/vc15_16 [Vollant]
847 - Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]
848 - Update README.contrib [Truta]
849 - Invert the assignment order of match_head and s->prev[...] in
850 INSERT_STRING [Truta]
851 - Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings
852 [Truta]
853 - Compare function pointers with 0, not with NULL or Z_NULL [Truta]
854 - Fix prototype of syncsearch in inflate.c [Truta]
855 - Introduce ASMINF macro to be enabled when using an ASM implementation
856 of inflate_fast [Truta]
857 - Change NO_DEFLATE to NO_GZCOMPRESS [Truta]
858 - Modify test_gzio in example.c to take a single file name as a
859 parameter [Truta]
860 - Exit the example.c program if gzopen fails [Truta]
861 - Add type casts around strlen in example.c [Truta]
862 - Remove casting to sizeof in minigzip.c; give a proper type
863 to the variable compared with SUFFIX_LEN [Truta]
864 - Update definitions of STDC and STDC99 in zconf.h [Truta]
865 - Synchronize zconf.h with the new Windows DLL interface [Truta]
866 - Use SYS16BIT instead of __32BIT__ to distinguish between
867 16- and 32-bit platforms [Truta]
868 - Use far memory allocators in small 16-bit memory models for
869 Turbo C [Truta]
870 - Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in
871 zlibCompileFlags [Truta]
872 - Cygwin has vsnprintf [Wilson]
873 - In Windows16, OS_CODE is 0, as in MSDOS [Truta]
874 - In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]
875
876 Changes in 1.2.0.4 (10 August 2003)
877 - Minor FAQ updates
878 - Be more strict when checking inflateInit2's windowBits parameter
879 - Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well
880 - Add gzip wrapper option to deflateInit2 using windowBits
881 - Add updated QNX rule in configure and qnx directory [Bonnefoy]
882 - Make inflate distance-too-far checks more rigorous
883 - Clean up FAR usage in inflate
884 - Add casting to sizeof() in gzio.c and minigzip.c
885
886 Changes in 1.2.0.3 (19 July 2003)
887 - Fix silly error in gzungetc() implementation [Vollant]
888 - Update contrib/minizip and contrib/vstudio [Vollant]
889 - Fix printf format in example.c
890 - Correct cdecl support in zconf.in.h [Anisimkov]
891 - Minor FAQ updates
892
893 Changes in 1.2.0.2 (13 July 2003)
894 - Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons
895 - Attempt to avoid warnings in crc32.c for pointer-int conversion
896 - Add AIX to configure, remove aix directory [Bakker]
897 - Add some casts to minigzip.c
898 - Improve checking after insecure sprintf() or vsprintf() calls
899 - Remove #elif's from crc32.c
900 - Change leave label to inf_leave in inflate.c and infback.c to avoid
901 library conflicts
902 - Remove inflate gzip decoding by default--only enable gzip decoding by
903 special request for stricter backward compatibility
904 - Add zlibCompileFlags() function to return compilation information
905 - More typecasting in deflate.c to avoid warnings
906 - Remove leading underscore from _Capital #defines [Truta]
907 - Fix configure to link shared library when testing
908 - Add some Windows CE target adjustments [Mai]
909 - Remove #define ZLIB_DLL in zconf.h [Vollant]
910 - Add zlib.3 [Rodgers]
911 - Update RFC URL in deflate.c and algorithm.txt [Mai]
912 - Add zlib_dll_FAQ.txt to contrib [Truta]
913 - Add UL to some constants [Truta]
914 - Update minizip and vstudio [Vollant]
915 - Remove vestigial NEED_DUMMY_RETURN from zconf.in.h
916 - Expand use of NO_DUMMY_DECL to avoid all dummy structures
917 - Added iostream3 to contrib [Schwardt]
918 - Replace rewind() with fseek() for WinCE [Truta]
919 - Improve setting of zlib format compression level flags
920 - Report 0 for huffman and rle strategies and for level == 0 or 1
921 - Report 2 only for level == 6
922 - Only deal with 64K limit when necessary at compile time [Truta]
923 - Allow TOO_FAR check to be turned off at compile time [Truta]
924 - Add gzclearerr() function [Souza]
925 - Add gzungetc() function
926
927 Changes in 1.2.0.1 (17 March 2003)
928 - Add Z_RLE strategy for run-length encoding [Truta]
929 - When Z_RLE requested, restrict matches to distance one
930 - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE
931 - Correct FASTEST compilation to allow level == 0
932 - Clean up what gets compiled for FASTEST
933 - Incorporate changes to zconf.in.h [Vollant]
934 - Refine detection of Turbo C need for dummy returns
935 - Refine ZLIB_DLL compilation
936 - Include additional header file on VMS for off_t typedef
937 - Try to use _vsnprintf where it supplants vsprintf [Vollant]
938 - Add some casts in inffast.c
939 - Enchance comments in zlib.h on what happens if gzprintf() tries to
940 write more than 4095 bytes before compression
941 - Remove unused state from inflateBackEnd()
942 - Remove exit(0) from minigzip.c, example.c
943 - Get rid of all those darn tabs
944 - Add "check" target to Makefile.in that does the same thing as "test"
945 - Add "mostlyclean" and "maintainer-clean" targets to Makefile.in
946 - Update contrib/inflate86 [Anderson]
947 - Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]
948 - Add msdos and win32 directories with makefiles [Truta]
949 - More additions and improvements to the FAQ
950
951 Changes in 1.2.0 (9 March 2003)
952 - New and improved inflate code
953 - About 20% faster
954 - Does not allocate 32K window unless and until needed
955 - Automatically detects and decompresses gzip streams
956 - Raw inflate no longer needs an extra dummy byte at end
957 - Added inflateBack functions using a callback interface--even faster
958 than inflate, useful for file utilities (gzip, zip)
959 - Added inflateCopy() function to record state for random access on
960 externally generated deflate streams (e.g. in gzip files)
961 - More readable code (I hope)
962 - New and improved crc32()
963 - About 50% faster, thanks to suggestions from Rodney Brown
964 - Add deflateBound() and compressBound() functions
965 - Fix memory leak in deflateInit2()
966 - Permit setting dictionary for raw deflate (for parallel deflate)
967 - Fix const declaration for gzwrite()
968 - Check for some malloc() failures in gzio.c
969 - Fix bug in gzopen() on single-byte file 0x1f
970 - Fix bug in gzread() on concatenated file with 0x1f at end of buffer
971 and next buffer doesn't start with 0x8b
972 - Fix uncompress() to return Z_DATA_ERROR on truncated input
973 - Free memory at end of example.c
974 - Remove MAX #define in trees.c (conflicted with some libraries)
975 - Fix static const's in deflate.c, gzio.c, and zutil.[ch]
976 - Declare malloc() and free() in gzio.c if STDC not defined
977 - Use malloc() instead of calloc() in zutil.c if int big enough
978 - Define STDC for AIX
979 - Add aix/ with approach for compiling shared library on AIX
980 - Add HP-UX support for shared libraries in configure
981 - Add OpenUNIX support for shared libraries in configure
982 - Use $cc instead of gcc to build shared library
983 - Make prefix directory if needed when installing
984 - Correct Macintosh avoidance of typedef Byte in zconf.h
985 - Correct Turbo C memory allocation when under Linux
986 - Use libz.a instead of -lz in Makefile (assure use of compiled library)
987 - Update configure to check for snprintf or vsnprintf functions and their
988 return value, warn during make if using an insecure function
989 - Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that
990 is lost when library is used--resolution is to build new zconf.h
991 - Documentation improvements (in zlib.h):
992 - Document raw deflate and inflate
993 - Update RFCs URL
994 - Point out that zlib and gzip formats are different
995 - Note that Z_BUF_ERROR is not fatal
996 - Document string limit for gzprintf() and possible buffer overflow
997 - Note requirement on avail_out when flushing
998 - Note permitted values of flush parameter of inflate()
999 - Add some FAQs (and even answers) to the FAQ
1000 - Add contrib/inflate86/ for x86 faster inflate
1001 - Add contrib/blast/ for PKWare Data Compression Library decompression
1002 - Add contrib/puff/ simple inflate for deflate format description
1003
1004 Changes in 1.1.4 (11 March 2002)
1005 - ZFREE was repeated on same allocation on some error conditions.
1006 This creates a security problem described in
1007 http://www.zlib.org/advisory-2002-03-11.txt
1008 - Returned incorrect error (Z_MEM_ERROR) on some invalid data
1009 - Avoid accesses before window for invalid distances with inflate window
1010 less than 32K.
1011 - force windowBits > 8 to avoid a bug in the encoder for a window size
1012 of 256 bytes. (A complete fix will be available in 1.1.5).
1013
1014 Changes in 1.1.3 (9 July 1998)
1015 - fix "an inflate input buffer bug that shows up on rare but persistent
1016 occasions" (Mark)
1017 - fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
1018 - fix gzseek(..., SEEK_SET) in write mode
1019 - fix crc check after a gzeek (Frank Faubert)
1020 - fix miniunzip when the last entry in a zip file is itself a zip file
1021 (J Lillge)
1022 - add contrib/asm586 and contrib/asm686 (Brian Raiter)
1023 See http://www.muppetlabs.com/~breadbox/software/assembly.html
1024 - add support for Delphi 3 in contrib/delphi (Bob Dellaca)
1025 - add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
1026 - do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
1027 - use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
1028 - added a FAQ file
1029
1030 - Support gzdopen on Mac with Metrowerks (Jason Linhart)
1031 - Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
1032 - define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
1033 - avoid some warnings with Borland C (Tom Tanner)
1034 - fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
1035 - emulate utime() for WIN32 in contrib/untgz (Gilles Vollant)
1036 - allow several arguments to configure (Tim Mooney, Frodo Looijaard)
1037 - use libdir and includedir in Makefile.in (Tim Mooney)
1038 - support shared libraries on OSF1 V4 (Tim Mooney)
1039 - remove so_locations in "make clean" (Tim Mooney)
1040 - fix maketree.c compilation error (Glenn, Mark)
1041 - Python interface to zlib now in Python 1.5 (Jeremy Hylton)
1042 - new Makefile.riscos (Rich Walker)
1043 - initialize static descriptors in trees.c for embedded targets (Nick Smith)
1044 - use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
1045 - add the OS/2 files in Makefile.in too (Andrew Zabolotny)
1046 - fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
1047 - fix maketree.c to allow clean compilation of inffixed.h (Mark)
1048 - fix parameter check in deflateCopy (Gunther Nikl)
1049 - cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
1050 - Many portability patches by Christian Spieler:
1051 . zutil.c, zutil.h: added "const" for zmem*
1052 . Make_vms.com: fixed some typos
1053 . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
1054 . msdos/Makefile.msc: remove "default rtl link library" info from obj files
1055 . msdos/Makefile.*: use model-dependent name for the built zlib library
1056 . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
1057 new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
1058 - use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
1059 - replace __far with _far for better portability (Christian Spieler, Tom Lane)
1060 - fix test for errno.h in configure (Tim Newsham)
1061
1062 Changes in 1.1.2 (19 March 98)
1063 - added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
1064 See http://www.winimage.com/zLibDll/unzip.html
1065 - preinitialize the inflate tables for fixed codes, to make the code
1066 completely thread safe (Mark)
1067 - some simplifications and slight speed-up to the inflate code (Mark)
1068 - fix gzeof on non-compressed files (Allan Schrum)
1069 - add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
1070 - use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
1071 - added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
1072 - add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
1073 - do not wrap extern "C" around system includes (Tom Lane)
1074 - mention zlib binding for TCL in README (Andreas Kupries)
1075 - added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
1076 - allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
1077 - allow "configure --prefix $HOME" (Tim Mooney)
1078 - remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
1079 - move Makefile.sas to amiga/Makefile.sas
1080
1081 Changes in 1.1.1 (27 Feb 98)
1082 - fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson)
1083 - remove block truncation heuristic which had very marginal effect for zlib
1084 (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
1085 compression ratio on some files. This also allows inlining _tr_tally for
1086 matches in deflate_slow.
1087 - added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
1088
1089 Changes in 1.1.0 (24 Feb 98)
1090 - do not return STREAM_END prematurely in inflate (John Bowler)
1091 - revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
1092 - compile with -DFASTEST to get compression code optimized for speed only
1093 - in minigzip, try mmap'ing the input file first (Miguel Albrecht)
1094 - increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
1095 on Sun but significant on HP)
1096
1097 - add a pointer to experimental unzip library in README (Gilles Vollant)
1098 - initialize variable gcc in configure (Chris Herborth)
1099
1100 Changes in 1.0.9 (17 Feb 1998)
1101 - added gzputs and gzgets functions
1102 - do not clear eof flag in gzseek (Mark Diekhans)
1103 - fix gzseek for files in transparent mode (Mark Diekhans)
1104 - do not assume that vsprintf returns the number of bytes written (Jens Krinke)
1105 - replace EXPORT with ZEXPORT to avoid conflict with other programs
1106 - added compress2 in zconf.h, zlib.def, zlib.dnt
1107 - new asm code from Gilles Vollant in contrib/asm386
1108 - simplify the inflate code (Mark):
1109 . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
1110 . ZALLOC the length list in inflate_trees_fixed() instead of using stack
1111 . ZALLOC the value area for huft_build() instead of using stack
1112 . Simplify Z_FINISH check in inflate()
1113
1114 - Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
1115 - in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
1116 - in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
1117 the declaration of FAR (Gilles VOllant)
1118 - install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
1119 - read_buf buf parameter of type Bytef* instead of charf*
1120 - zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
1121 - do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
1122 - fix check for presence of directories in "make install" (Ian Willis)
1123
1124 Changes in 1.0.8 (27 Jan 1998)
1125 - fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
1126 - fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
1127 - added compress2() to allow setting the compression level
1128 - include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
1129 - use constant arrays for the static trees in trees.c instead of computing
1130 them at run time (thanks to Ken Raeburn for this suggestion). To create
1131 trees.h, compile with GEN_TREES_H and run "make test".
1132 - check return code of example in "make test" and display result
1133 - pass minigzip command line options to file_compress
1134 - simplifying code of inflateSync to avoid gcc 2.8 bug
1135
1136 - support CC="gcc -Wall" in configure -s (QingLong)
1137 - avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
1138 - fix test for shared library support to avoid compiler warnings
1139 - zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
1140 - check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
1141 - do not use fdopen for Metrowerks on Mac (Brad Pettit))
1142 - add checks for gzputc and gzputc in example.c
1143 - avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
1144 - use const for the CRC table (Ken Raeburn)
1145 - fixed "make uninstall" for shared libraries
1146 - use Tracev instead of Trace in infblock.c
1147 - in example.c use correct compressed length for test_sync
1148 - suppress +vnocompatwarnings in configure for HPUX (not always supported)
1149
1150 Changes in 1.0.7 (20 Jan 1998)
1151 - fix gzseek which was broken in write mode
1152 - return error for gzseek to negative absolute position
1153 - fix configure for Linux (Chun-Chung Chen)
1154 - increase stack space for MSC (Tim Wegner)
1155 - get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
1156 - define EXPORTVA for gzprintf (Gilles Vollant)
1157 - added man page zlib.3 (Rick Rodgers)
1158 - for contrib/untgz, fix makedir() and improve Makefile
1159
1160 - check gzseek in write mode in example.c
1161 - allocate extra buffer for seeks only if gzseek is actually called
1162 - avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
1163 - add inflateSyncPoint in zconf.h
1164 - fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
1165
1166 Changes in 1.0.6 (19 Jan 1998)
1167 - add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
1168 gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
1169 - Fix a deflate bug occurring only with compression level 0 (thanks to
1170 Andy Buckler for finding this one).
1171 - In minigzip, pass transparently also the first byte for .Z files.
1172 - return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
1173 - check Z_FINISH in inflate (thanks to Marc Schluper)
1174 - Implement deflateCopy (thanks to Adam Costello)
1175 - make static libraries by default in configure, add --shared option.
1176 - move MSDOS or Windows specific files to directory msdos
1177 - suppress the notion of partial flush to simplify the interface
1178 (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
1179 - suppress history buffer provided by application to simplify the interface
1180 (this feature was not implemented anyway in 1.0.4)
1181 - next_in and avail_in must be initialized before calling inflateInit or
1182 inflateInit2
1183 - add EXPORT in all exported functions (for Windows DLL)
1184 - added Makefile.nt (thanks to Stephen Williams)
1185 - added the unsupported "contrib" directory:
1186 contrib/asm386/ by Gilles Vollant <info@winimage.com>
1187 386 asm code replacing longest_match().
1188 contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
1189 A C++ I/O streams interface to the zlib gz* functions
1190 contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no>
1191 Another C++ I/O streams interface
1192 contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
1193 A very simple tar.gz file extractor using zlib
1194 contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
1195 How to use compress(), uncompress() and the gz* functions from VB.
1196 - pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
1197 level) in minigzip (thanks to Tom Lane)
1198
1199 - use const for rommable constants in deflate
1200 - added test for gzseek and gztell in example.c
1201 - add undocumented function inflateSyncPoint() (hack for Paul Mackerras)
1202 - add undocumented function zError to convert error code to string
1203 (for Tim Smithers)
1204 - Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code.
1205 - Use default memcpy for Symantec MSDOS compiler.
1206 - Add EXPORT keyword for check_func (needed for Windows DLL)
1207 - add current directory to LD_LIBRARY_PATH for "make test"
1208 - create also a link for libz.so.1
1209 - added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)
1210 - use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)
1211 - added -soname for Linux in configure (Chun-Chung Chen,
1212 - assign numbers to the exported functions in zlib.def (for Windows DLL)
1213 - add advice in zlib.h for best usage of deflateSetDictionary
1214 - work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)
1215 - allow compilation with ANSI keywords only enabled for TurboC in large model
1216 - avoid "versionString"[0] (Borland bug)
1217 - add NEED_DUMMY_RETURN for Borland
1218 - use variable z_verbose for tracing in debug mode (L. Peter Deutsch).
1219 - allow compilation with CC
1220 - defined STDC for OS/2 (David Charlap)
1221 - limit external names to 8 chars for MVS (Thomas Lund)
1222 - in minigzip.c, use static buffers only for 16-bit systems
1223 - fix suffix check for "minigzip -d foo.gz"
1224 - do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)
1225 - use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)
1226 - added makelcc.bat for lcc-win32 (Tom St Denis)
1227 - in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
1228 - Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.
1229 - check for unistd.h in configure (for off_t)
1230 - remove useless check parameter in inflate_blocks_free
1231 - avoid useless assignment of s->check to itself in inflate_blocks_new
1232 - do not flush twice in gzclose (thanks to Ken Raeburn)
1233 - rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h
1234 - use NO_ERRNO_H instead of enumeration of operating systems with errno.h
1235 - work around buggy fclose on pipes for HP/UX
1236 - support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)
1237 - fix configure if CC is already equal to gcc
1238
1239 Changes in 1.0.5 (3 Jan 98)
1240 - Fix inflate to terminate gracefully when fed corrupted or invalid data
1241 - Use const for rommable constants in inflate
1242 - Eliminate memory leaks on error conditions in inflate
1243 - Removed some vestigial code in inflate
1244 - Update web address in README
1245
1246 Changes in 1.0.4 (24 Jul 96)
1247 - In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
1248 bit, so the decompressor could decompress all the correct data but went
1249 on to attempt decompressing extra garbage data. This affected minigzip too.
1250 - zlibVersion and gzerror return const char* (needed for DLL)
1251 - port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
1252 - use z_error only for DEBUG (avoid problem with DLLs)
1253
1254 Changes in 1.0.3 (2 Jul 96)
1255 - use z_streamp instead of z_stream *, which is now a far pointer in MSDOS
1256 small and medium models; this makes the library incompatible with previous
1257 versions for these models. (No effect in large model or on other systems.)
1258 - return OK instead of BUF_ERROR if previous deflate call returned with
1259 avail_out as zero but there is nothing to do
1260 - added memcmp for non STDC compilers
1261 - define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly)
1262 - define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO)
1263 - better check for 16-bit mode MSC (avoids problem with Symantec)
1264
1265 Changes in 1.0.2 (23 May 96)
1266 - added Windows DLL support
1267 - added a function zlibVersion (for the DLL support)
1268 - fixed declarations using Bytef in infutil.c (pb with MSDOS medium model)
1269 - Bytef is define's instead of typedef'd only for Borland C
1270 - avoid reading uninitialized memory in example.c
1271 - mention in README that the zlib format is now RFC1950
1272 - updated Makefile.dj2
1273 - added algorithm.doc
1274
1275 Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
1276 - fix array overlay in deflate.c which sometimes caused bad compressed data
1277 - fix inflate bug with empty stored block
1278 - fix MSDOS medium model which was broken in 0.99
1279 - fix deflateParams() which could generated bad compressed data.
1280 - Bytef is define'd instead of typedef'ed (work around Borland bug)
1281 - added an INDEX file
1282 - new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
1283 Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
1284 - speed up adler32 for modern machines without auto-increment
1285 - added -ansi for IRIX in configure
1286 - static_init_done in trees.c is an int
1287 - define unlink as delete for VMS
1288 - fix configure for QNX
1289 - add configure branch for SCO and HPUX
1290 - avoid many warnings (unused variables, dead assignments, etc...)
1291 - no fdopen for BeOS
1292 - fix the Watcom fix for 32 bit mode (define FAR as empty)
1293 - removed redefinition of Byte for MKWERKS
1294 - work around an MWKERKS bug (incorrect merge of all .h files)
1295
1296 Changes in 0.99 (27 Jan 96)
1297 - allow preset dictionary shared between compressor and decompressor
1298 - allow compression level 0 (no compression)
1299 - add deflateParams in zlib.h: allow dynamic change of compression level
1300 and compression strategy.
1301 - test large buffers and deflateParams in example.c
1302 - add optional "configure" to build zlib as a shared library
1303 - suppress Makefile.qnx, use configure instead
1304 - fixed deflate for 64-bit systems (detected on Cray)
1305 - fixed inflate_blocks for 64-bit systems (detected on Alpha)
1306 - declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2)
1307 - always return Z_BUF_ERROR when deflate() has nothing to do
1308 - deflateInit and inflateInit are now macros to allow version checking
1309 - prefix all global functions and types with z_ with -DZ_PREFIX
1310 - make falloc completely reentrant (inftrees.c)
1311 - fixed very unlikely race condition in ct_static_init
1312 - free in reverse order of allocation to help memory manager
1313 - use zlib-1.0/* instead of zlib/* inside the tar.gz
1314 - make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith
1315 -Wconversion -Wstrict-prototypes -Wmissing-prototypes"
1316 - allow gzread on concatenated .gz files
1317 - deflateEnd now returns Z_DATA_ERROR if it was premature
1318 - deflate is finally (?) fully deterministic (no matches beyond end of input)
1319 - Document Z_SYNC_FLUSH
1320 - add uninstall in Makefile
1321 - Check for __cpluplus in zlib.h
1322 - Better test in ct_align for partial flush
1323 - avoid harmless warnings for Borland C++
1324 - initialize hash_head in deflate.c
1325 - avoid warning on fdopen (gzio.c) for HP cc -Aa
1326 - include stdlib.h for STDC compilers
1327 - include errno.h for Cray
1328 - ignore error if ranlib doesn't exist
1329 - call ranlib twice for NeXTSTEP
1330 - use exec_prefix instead of prefix for libz.a
1331 - renamed ct_* as _tr_* to avoid conflict with applications
1332 - clear z->msg in inflateInit2 before any error return
1333 - initialize opaque in example.c, gzio.c, deflate.c and inflate.c
1334 - fixed typo in zconf.h (_GNUC__ => __GNUC__)
1335 - check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode)
1336 - fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
1337 - in fcalloc, normalize pointer if size > 65520 bytes
1338 - don't use special fcalloc for 32 bit Borland C++
1339 - use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc...
1340 - use Z_BINARY instead of BINARY
1341 - document that gzclose after gzdopen will close the file
1342 - allow "a" as mode in gzopen.
1343 - fix error checking in gzread
1344 - allow skipping .gz extra-field on pipes
1345 - added reference to Perl interface in README
1346 - put the crc table in FAR data (I dislike more and more the medium model :)
1347 - added get_crc_table
1348 - added a dimension to all arrays (Borland C can't count).
1349 - workaround Borland C bug in declaration of inflate_codes_new & inflate_fast
1350 - guard against multiple inclusion of *.h (for precompiled header on Mac)
1351 - Watcom C pretends to be Microsoft C small model even in 32 bit mode.
1352 - don't use unsized arrays to avoid silly warnings by Visual C++:
1353 warning C4746: 'inflate_mask' : unsized array treated as '__far'
1354 (what's wrong with far data in far model?).
1355 - define enum out of inflate_blocks_state to allow compilation with C++
1356
1357 Changes in 0.95 (16 Aug 95)
1358 - fix MSDOS small and medium model (now easier to adapt to any compiler)
1359 - inlined send_bits
1360 - fix the final (:-) bug for deflate with flush (output was correct but
1361 not completely flushed in rare occasions).
1362 - default window size is same for compression and decompression
1363 (it's now sufficient to set MAX_WBITS in zconf.h).
1364 - voidp -> voidpf and voidnp -> voidp (for consistency with other
1365 typedefs and because voidnp was not near in large model).
1366
1367 Changes in 0.94 (13 Aug 95)
1368 - support MSDOS medium model
1369 - fix deflate with flush (could sometimes generate bad output)
1370 - fix deflateReset (zlib header was incorrectly suppressed)
1371 - added support for VMS
1372 - allow a compression level in gzopen()
1373 - gzflush now calls fflush
1374 - For deflate with flush, flush even if no more input is provided.
1375 - rename libgz.a as libz.a
1376 - avoid complex expression in infcodes.c triggering Turbo C bug
1377 - work around a problem with gcc on Alpha (in INSERT_STRING)
1378 - don't use inline functions (problem with some gcc versions)
1379 - allow renaming of Byte, uInt, etc... with #define.
1380 - avoid warning about (unused) pointer before start of array in deflate.c
1381 - avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c
1382 - avoid reserved word 'new' in trees.c
1383
1384 Changes in 0.93 (25 June 95)
1385 - temporarily disable inline functions
1386 - make deflate deterministic
1387 - give enough lookahead for PARTIAL_FLUSH
1388 - Set binary mode for stdin/stdout in minigzip.c for OS/2
1389 - don't even use signed char in inflate (not portable enough)
1390 - fix inflate memory leak for segmented architectures
1391
1392 Changes in 0.92 (3 May 95)
1393 - don't assume that char is signed (problem on SGI)
1394 - Clear bit buffer when starting a stored block
1395 - no memcpy on Pyramid
1396 - suppressed inftest.c
1397 - optimized fill_window, put longest_match inline for gcc
1398 - optimized inflate on stored blocks.
1399 - untabify all sources to simplify patches
1400
1401 Changes in 0.91 (2 May 95)
1402 - Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
1403 - Document the memory requirements in zconf.h
1404 - added "make install"
1405 - fix sync search logic in inflateSync
1406 - deflate(Z_FULL_FLUSH) now works even if output buffer too short
1407 - after inflateSync, don't scare people with just "lo world"
1408 - added support for DJGPP
1409
1410 Changes in 0.9 (1 May 95)
1411 - don't assume that zalloc clears the allocated memory (the TurboC bug
1412 was Mark's bug after all :)
1413 - let again gzread copy uncompressed data unchanged (was working in 0.71)
1414 - deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
1415 - added a test of inflateSync in example.c
1416 - moved MAX_WBITS to zconf.h because users might want to change that.
1417 - document explicitly that zalloc(64K) on MSDOS must return a normalized
1418 pointer (zero offset)
1419 - added Makefiles for Microsoft C, Turbo C, Borland C++
1420 - faster crc32()
1421
1422 Changes in 0.8 (29 April 95)
1423 - added fast inflate (inffast.c)
1424 - deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
1425 is incompatible with previous versions of zlib which returned Z_OK.
1426 - work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
1427 (actually that was not a compiler bug, see 0.81 above)
1428 - gzread no longer reads one extra byte in certain cases
1429 - In gzio destroy(), don't reference a freed structure
1430 - avoid many warnings for MSDOS
1431 - avoid the ERROR symbol which is used by MS Windows
1432
1433 Changes in 0.71 (14 April 95)
1434 - Fixed more MSDOS compilation problems :( There is still a bug with
1435 TurboC large model.
1436
1437 Changes in 0.7 (14 April 95)
1438 - Added full inflate support.
1439 - Simplified the crc32() interface. The pre- and post-conditioning
1440 (one's complement) is now done inside crc32(). WARNING: this is
1441 incompatible with previous versions; see zlib.h for the new usage.
1442
1443 Changes in 0.61 (12 April 95)
1444 - workaround for a bug in TurboC. example and minigzip now work on MSDOS.
1445
1446 Changes in 0.6 (11 April 95)
1447 - added minigzip.c
1448 - added gzdopen to reopen a file descriptor as gzFile
1449 - added transparent reading of non-gziped files in gzread.
1450 - fixed bug in gzread (don't read crc as data)
1451 - fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
1452 - don't allocate big arrays in the stack (for MSDOS)
1453 - fix some MSDOS compilation problems
1454
1455 Changes in 0.5:
1456 - do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
1457 not yet Z_FULL_FLUSH.
1458 - support decompression but only in a single step (forced Z_FINISH)
1459 - added opaque object for zalloc and zfree.
1460 - added deflateReset and inflateReset
1461 - added a variable zlib_version for consistency checking.
1462 - renamed the 'filter' parameter of deflateInit2 as 'strategy'.
1463 Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
1464
1465 Changes in 0.4:
1466 - avoid "zip" everywhere, use zlib instead of ziplib.
1467 - suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
1468 if compression method == 8.
1469 - added adler32 and crc32
1470 - renamed deflateOptions as deflateInit2, call one or the other but not both
1471 - added the method parameter for deflateInit2.
1472 - added inflateInit2
1473 - simplied considerably deflateInit and inflateInit by not supporting
1474 user-provided history buffer. This is supported only in deflateInit2
1475 and inflateInit2.
1476
1477 Changes in 0.3:
1478 - prefix all macro names with Z_
1479 - use Z_FINISH instead of deflateEnd to finish compression.
1480 - added Z_HUFFMAN_ONLY
1481 - added gzerror()
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