use mem mapping for idle loop det
[picodrive.git] / zlib / ChangeLog
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cc68a136 1
2 ChangeLog file for zlib
3
4Changes in 1.2.3 (18 July 2005)
5- Apply security vulnerability fixes to contrib/infback9 as well
6- Clean up some text files (carriage returns, trailing space)
7- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant]
8
9Changes in 1.2.2.4 (11 July 2005)
10- Add inflatePrime() function for starting inflation at bit boundary
11- Avoid some Visual C warnings in deflate.c
12- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit
13 compile
14- Fix some spelling errors in comments [Betts]
15- Correct inflateInit2() error return documentation in zlib.h
16- Added zran.c example of compressed data random access to examples
17 directory, shows use of inflatePrime()
18- Fix cast for assignments to strm->state in inflate.c and infback.c
19- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer]
20- Move declarations of gf2 functions to right place in crc32.c [Oberhumer]
21- Add cast in trees.c t avoid a warning [Oberhumer]
22- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer]
23- Update make_vms.com [Zinser]
24- Initialize state->write in inflateReset() since copied in inflate_fast()
25- Be more strict on incomplete code sets in inflate_table() and increase
26 ENOUGH and MAXD -- this repairs a possible security vulnerability for
27 invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for
28 discovering the vulnerability and providing test cases.
29- Add ia64 support to configure for HP-UX [Smith]
30- Add error return to gzread() for format or i/o error [Levin]
31- Use malloc.h for OS/2 [Necasek]
32
33Changes in 1.2.2.3 (27 May 2005)
34- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile
35- Typecast fread() return values in gzio.c [Vollant]
36- Remove trailing space in minigzip.c outmode (VC++ can't deal with it)
37- Fix crc check bug in gzread() after gzungetc() [Heiner]
38- Add the deflateTune() function to adjust internal compression parameters
39- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack)
40- Remove an incorrect assertion in examples/zpipe.c
41- Add C++ wrapper in infback9.h [Donais]
42- Fix bug in inflateCopy() when decoding fixed codes
43- Note in zlib.h how much deflateSetDictionary() actually uses
44- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used)
45- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer]
46- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer]
47- Add gzdirect() function to indicate transparent reads
48- Update contrib/minizip [Vollant]
49- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer]
50- Add casts in crc32.c to avoid warnings [Oberhumer]
51- Add contrib/masmx64 [Vollant]
52- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant]
53
54Changes in 1.2.2.2 (30 December 2004)
55- Replace structure assignments in deflate.c and inflate.c with zmemcpy to
56 avoid implicit memcpy calls (portability for no-library compilation)
57- Increase sprintf() buffer size in gzdopen() to allow for large numbers
58- Add INFLATE_STRICT to check distances against zlib header
59- Improve WinCE errno handling and comments [Chang]
60- Remove comment about no gzip header processing in FAQ
61- Add Z_FIXED strategy option to deflateInit2() to force fixed trees
62- Add updated make_vms.com [Coghlan], update README
63- Create a new "examples" directory, move gzappend.c there, add zpipe.c,
64 fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html.
65- Add FAQ entry and comments in deflate.c on uninitialized memory access
66- Add Solaris 9 make options in configure [Gilbert]
67- Allow strerror() usage in gzio.c for STDC
68- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer]
69- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant]
70- Use z_off_t for adler32_combine() and crc32_combine() lengths
71- Make adler32() much faster for small len
72- Use OS_CODE in deflate() default gzip header
73
74Changes in 1.2.2.1 (31 October 2004)
75- Allow inflateSetDictionary() call for raw inflate
76- Fix inflate header crc check bug for file names and comments
77- Add deflateSetHeader() and gz_header structure for custom gzip headers
78- Add inflateGetheader() to retrieve gzip headers
79- Add crc32_combine() and adler32_combine() functions
80- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list
81- Use zstreamp consistently in zlib.h (inflate_back functions)
82- Remove GUNZIP condition from definition of inflate_mode in inflate.h
83 and in contrib/inflate86/inffast.S [Truta, Anderson]
84- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson]
85- Update projects/README.projects and projects/visualc6 [Truta]
86- Update win32/DLL_FAQ.txt [Truta]
87- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta]
88- Deprecate Z_ASCII; use Z_TEXT instead [Truta]
89- Use a new algorithm for setting strm->data_type in trees.c [Truta]
90- Do not define an exit() prototype in zutil.c unless DEBUG defined
91- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta]
92- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate()
93- Fix Darwin build version identification [Peterson]
94
95Changes in 1.2.2 (3 October 2004)
96- Update zlib.h comments on gzip in-memory processing
97- Set adler to 1 in inflateReset() to support Java test suite [Walles]
98- Add contrib/dotzlib [Ravn]
99- Update win32/DLL_FAQ.txt [Truta]
100- Update contrib/minizip [Vollant]
101- Move contrib/visual-basic.txt to old/ [Truta]
102- Fix assembler builds in projects/visualc6/ [Truta]
103
104Changes in 1.2.1.2 (9 September 2004)
105- Update INDEX file
106- Fix trees.c to update strm->data_type (no one ever noticed!)
107- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown]
108- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE)
109- Add limited multitasking protection to DYNAMIC_CRC_TABLE
110- Add NO_vsnprintf for VMS in zutil.h [Mozilla]
111- Don't declare strerror() under VMS [Mozilla]
112- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize
113- Update contrib/ada [Anisimkov]
114- Update contrib/minizip [Vollant]
115- Fix configure to not hardcode directories for Darwin [Peterson]
116- Fix gzio.c to not return error on empty files [Brown]
117- Fix indentation; update version in contrib/delphi/ZLib.pas and
118 contrib/pascal/zlibpas.pas [Truta]
119- Update mkasm.bat in contrib/masmx86 [Truta]
120- Update contrib/untgz [Truta]
121- Add projects/README.projects [Truta]
122- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta]
123- Update win32/DLL_FAQ.txt [Truta]
124- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta]
125- Remove an unnecessary assignment to curr in inftrees.c [Truta]
126- Add OS/2 to exe builds in configure [Poltorak]
127- Remove err dummy parameter in zlib.h [Kientzle]
128
129Changes in 1.2.1.1 (9 January 2004)
130- Update email address in README
131- Several FAQ updates
132- Fix a big fat bug in inftrees.c that prevented decoding valid
133 dynamic blocks with only literals and no distance codes --
134 Thanks to "Hot Emu" for the bug report and sample file
135- Add a note to puff.c on no distance codes case.
136
137Changes in 1.2.1 (17 November 2003)
138- Remove a tab in contrib/gzappend/gzappend.c
139- Update some interfaces in contrib for new zlib functions
140- Update zlib version number in some contrib entries
141- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta]
142- Support shared libraries on Hurd and KFreeBSD [Brown]
143- Fix error in NO_DIVIDE option of adler32.c
144
145Changes in 1.2.0.8 (4 November 2003)
146- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas
147- Add experimental NO_DIVIDE #define in adler32.c
148 - Possibly faster on some processors (let me know if it is)
149- Correct Z_BLOCK to not return on first inflate call if no wrap
150- Fix strm->data_type on inflate() return to correctly indicate EOB
151- Add deflatePrime() function for appending in the middle of a byte
152- Add contrib/gzappend for an example of appending to a stream
153- Update win32/DLL_FAQ.txt [Truta]
154- Delete Turbo C comment in README [Truta]
155- Improve some indentation in zconf.h [Truta]
156- Fix infinite loop on bad input in configure script [Church]
157- Fix gzeof() for concatenated gzip files [Johnson]
158- Add example to contrib/visual-basic.txt [Michael B.]
159- Add -p to mkdir's in Makefile.in [vda]
160- Fix configure to properly detect presence or lack of printf functions
161- Add AS400 support [Monnerat]
162- Add a little Cygwin support [Wilson]
163
164Changes in 1.2.0.7 (21 September 2003)
165- Correct some debug formats in contrib/infback9
166- Cast a type in a debug statement in trees.c
167- Change search and replace delimiter in configure from % to # [Beebe]
168- Update contrib/untgz to 0.2 with various fixes [Truta]
169- Add build support for Amiga [Nikl]
170- Remove some directories in old that have been updated to 1.2
171- Add dylib building for Mac OS X in configure and Makefile.in
172- Remove old distribution stuff from Makefile
173- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X
174- Update links in README
175
176Changes in 1.2.0.6 (13 September 2003)
177- Minor FAQ updates
178- Update contrib/minizip to 1.00 [Vollant]
179- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]
180- Update POSTINC comment for 68060 [Nikl]
181- Add contrib/infback9 with deflate64 decoding (unsupported)
182- For MVS define NO_vsnprintf and undefine FAR [van Burik]
183- Add pragma for fdopen on MVS [van Burik]
184
185Changes in 1.2.0.5 (8 September 2003)
186- Add OF to inflateBackEnd() declaration in zlib.h
187- Remember start when using gzdopen in the middle of a file
188- Use internal off_t counters in gz* functions to properly handle seeks
189- Perform more rigorous check for distance-too-far in inffast.c
190- Add Z_BLOCK flush option to return from inflate at block boundary
191- Set strm->data_type on return from inflate
192 - Indicate bits unused, if at block boundary, and if in last block
193- Replace size_t with ptrdiff_t in crc32.c, and check for correct size
194- Add condition so old NO_DEFLATE define still works for compatibility
195- FAQ update regarding the Windows DLL [Truta]
196- INDEX update: add qnx entry, remove aix entry [Truta]
197- Install zlib.3 into mandir [Wilson]
198- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]
199- Adapt the zlib interface to the new DLL convention guidelines [Truta]
200- Introduce ZLIB_WINAPI macro to allow the export of functions using
201 the WINAPI calling convention, for Visual Basic [Vollant, Truta]
202- Update msdos and win32 scripts and makefiles [Truta]
203- Export symbols by name, not by ordinal, in win32/zlib.def [Truta]
204- Add contrib/ada [Anisimkov]
205- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]
206- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]
207- Add contrib/masm686 [Truta]
208- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm
209 [Truta, Vollant]
210- Update contrib/delphi; rename to contrib/pascal; add example [Truta]
211- Remove contrib/delphi2; add a new contrib/delphi [Truta]
212- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,
213 and fix some method prototypes [Truta]
214- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip
215 [Truta]
216- Avoid the use of backslash (\) in contrib/minizip [Vollant]
217- Fix file time handling in contrib/untgz; update makefiles [Truta]
218- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines
219 [Vollant]
220- Remove contrib/vstudio/vc15_16 [Vollant]
221- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]
222- Update README.contrib [Truta]
223- Invert the assignment order of match_head and s->prev[...] in
224 INSERT_STRING [Truta]
225- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings
226 [Truta]
227- Compare function pointers with 0, not with NULL or Z_NULL [Truta]
228- Fix prototype of syncsearch in inflate.c [Truta]
229- Introduce ASMINF macro to be enabled when using an ASM implementation
230 of inflate_fast [Truta]
231- Change NO_DEFLATE to NO_GZCOMPRESS [Truta]
232- Modify test_gzio in example.c to take a single file name as a
233 parameter [Truta]
234- Exit the example.c program if gzopen fails [Truta]
235- Add type casts around strlen in example.c [Truta]
236- Remove casting to sizeof in minigzip.c; give a proper type
237 to the variable compared with SUFFIX_LEN [Truta]
238- Update definitions of STDC and STDC99 in zconf.h [Truta]
239- Synchronize zconf.h with the new Windows DLL interface [Truta]
240- Use SYS16BIT instead of __32BIT__ to distinguish between
241 16- and 32-bit platforms [Truta]
242- Use far memory allocators in small 16-bit memory models for
243 Turbo C [Truta]
244- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in
245 zlibCompileFlags [Truta]
246- Cygwin has vsnprintf [Wilson]
247- In Windows16, OS_CODE is 0, as in MSDOS [Truta]
248- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]
249
250Changes in 1.2.0.4 (10 August 2003)
251- Minor FAQ updates
252- Be more strict when checking inflateInit2's windowBits parameter
253- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well
254- Add gzip wrapper option to deflateInit2 using windowBits
255- Add updated QNX rule in configure and qnx directory [Bonnefoy]
256- Make inflate distance-too-far checks more rigorous
257- Clean up FAR usage in inflate
258- Add casting to sizeof() in gzio.c and minigzip.c
259
260Changes in 1.2.0.3 (19 July 2003)
261- Fix silly error in gzungetc() implementation [Vollant]
262- Update contrib/minizip and contrib/vstudio [Vollant]
263- Fix printf format in example.c
264- Correct cdecl support in zconf.in.h [Anisimkov]
265- Minor FAQ updates
266
267Changes in 1.2.0.2 (13 July 2003)
268- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons
269- Attempt to avoid warnings in crc32.c for pointer-int conversion
270- Add AIX to configure, remove aix directory [Bakker]
271- Add some casts to minigzip.c
272- Improve checking after insecure sprintf() or vsprintf() calls
273- Remove #elif's from crc32.c
274- Change leave label to inf_leave in inflate.c and infback.c to avoid
275 library conflicts
276- Remove inflate gzip decoding by default--only enable gzip decoding by
277 special request for stricter backward compatibility
278- Add zlibCompileFlags() function to return compilation information
279- More typecasting in deflate.c to avoid warnings
280- Remove leading underscore from _Capital #defines [Truta]
281- Fix configure to link shared library when testing
282- Add some Windows CE target adjustments [Mai]
283- Remove #define ZLIB_DLL in zconf.h [Vollant]
284- Add zlib.3 [Rodgers]
285- Update RFC URL in deflate.c and algorithm.txt [Mai]
286- Add zlib_dll_FAQ.txt to contrib [Truta]
287- Add UL to some constants [Truta]
288- Update minizip and vstudio [Vollant]
289- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h
290- Expand use of NO_DUMMY_DECL to avoid all dummy structures
291- Added iostream3 to contrib [Schwardt]
292- Replace rewind() with fseek() for WinCE [Truta]
293- Improve setting of zlib format compression level flags
294 - Report 0 for huffman and rle strategies and for level == 0 or 1
295 - Report 2 only for level == 6
296- Only deal with 64K limit when necessary at compile time [Truta]
297- Allow TOO_FAR check to be turned off at compile time [Truta]
298- Add gzclearerr() function [Souza]
299- Add gzungetc() function
300
301Changes in 1.2.0.1 (17 March 2003)
302- Add Z_RLE strategy for run-length encoding [Truta]
303 - When Z_RLE requested, restrict matches to distance one
304 - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE
305- Correct FASTEST compilation to allow level == 0
306- Clean up what gets compiled for FASTEST
307- Incorporate changes to zconf.in.h [Vollant]
308 - Refine detection of Turbo C need for dummy returns
309 - Refine ZLIB_DLL compilation
310 - Include additional header file on VMS for off_t typedef
311- Try to use _vsnprintf where it supplants vsprintf [Vollant]
312- Add some casts in inffast.c
313- Enchance comments in zlib.h on what happens if gzprintf() tries to
314 write more than 4095 bytes before compression
315- Remove unused state from inflateBackEnd()
316- Remove exit(0) from minigzip.c, example.c
317- Get rid of all those darn tabs
318- Add "check" target to Makefile.in that does the same thing as "test"
319- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in
320- Update contrib/inflate86 [Anderson]
321- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]
322- Add msdos and win32 directories with makefiles [Truta]
323- More additions and improvements to the FAQ
324
325Changes in 1.2.0 (9 March 2003)
326- New and improved inflate code
327 - About 20% faster
328 - Does not allocate 32K window unless and until needed
329 - Automatically detects and decompresses gzip streams
330 - Raw inflate no longer needs an extra dummy byte at end
331 - Added inflateBack functions using a callback interface--even faster
332 than inflate, useful for file utilities (gzip, zip)
333 - Added inflateCopy() function to record state for random access on
334 externally generated deflate streams (e.g. in gzip files)
335 - More readable code (I hope)
336- New and improved crc32()
337 - About 50% faster, thanks to suggestions from Rodney Brown
338- Add deflateBound() and compressBound() functions
339- Fix memory leak in deflateInit2()
340- Permit setting dictionary for raw deflate (for parallel deflate)
341- Fix const declaration for gzwrite()
342- Check for some malloc() failures in gzio.c
343- Fix bug in gzopen() on single-byte file 0x1f
344- Fix bug in gzread() on concatenated file with 0x1f at end of buffer
345 and next buffer doesn't start with 0x8b
346- Fix uncompress() to return Z_DATA_ERROR on truncated input
347- Free memory at end of example.c
348- Remove MAX #define in trees.c (conflicted with some libraries)
349- Fix static const's in deflate.c, gzio.c, and zutil.[ch]
350- Declare malloc() and free() in gzio.c if STDC not defined
351- Use malloc() instead of calloc() in zutil.c if int big enough
352- Define STDC for AIX
353- Add aix/ with approach for compiling shared library on AIX
354- Add HP-UX support for shared libraries in configure
355- Add OpenUNIX support for shared libraries in configure
356- Use $cc instead of gcc to build shared library
357- Make prefix directory if needed when installing
358- Correct Macintosh avoidance of typedef Byte in zconf.h
359- Correct Turbo C memory allocation when under Linux
360- Use libz.a instead of -lz in Makefile (assure use of compiled library)
361- Update configure to check for snprintf or vsnprintf functions and their
362 return value, warn during make if using an insecure function
363- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that
364 is lost when library is used--resolution is to build new zconf.h
365- Documentation improvements (in zlib.h):
366 - Document raw deflate and inflate
367 - Update RFCs URL
368 - Point out that zlib and gzip formats are different
369 - Note that Z_BUF_ERROR is not fatal
370 - Document string limit for gzprintf() and possible buffer overflow
371 - Note requirement on avail_out when flushing
372 - Note permitted values of flush parameter of inflate()
373- Add some FAQs (and even answers) to the FAQ
374- Add contrib/inflate86/ for x86 faster inflate
375- Add contrib/blast/ for PKWare Data Compression Library decompression
376- Add contrib/puff/ simple inflate for deflate format description
377
378Changes in 1.1.4 (11 March 2002)
379- ZFREE was repeated on same allocation on some error conditions.
380 This creates a security problem described in
381 http://www.zlib.org/advisory-2002-03-11.txt
382- Returned incorrect error (Z_MEM_ERROR) on some invalid data
383- Avoid accesses before window for invalid distances with inflate window
384 less than 32K.
385- force windowBits > 8 to avoid a bug in the encoder for a window size
386 of 256 bytes. (A complete fix will be available in 1.1.5).
387
388Changes in 1.1.3 (9 July 1998)
389- fix "an inflate input buffer bug that shows up on rare but persistent
390 occasions" (Mark)
391- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
392- fix gzseek(..., SEEK_SET) in write mode
393- fix crc check after a gzeek (Frank Faubert)
394- fix miniunzip when the last entry in a zip file is itself a zip file
395 (J Lillge)
396- add contrib/asm586 and contrib/asm686 (Brian Raiter)
397 See http://www.muppetlabs.com/~breadbox/software/assembly.html
398- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
399- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
400- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
401- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
402- added a FAQ file
403
404- Support gzdopen on Mac with Metrowerks (Jason Linhart)
405- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
406- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
407- avoid some warnings with Borland C (Tom Tanner)
408- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
409- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant)
410- allow several arguments to configure (Tim Mooney, Frodo Looijaard)
411- use libdir and includedir in Makefile.in (Tim Mooney)
412- support shared libraries on OSF1 V4 (Tim Mooney)
413- remove so_locations in "make clean" (Tim Mooney)
414- fix maketree.c compilation error (Glenn, Mark)
415- Python interface to zlib now in Python 1.5 (Jeremy Hylton)
416- new Makefile.riscos (Rich Walker)
417- initialize static descriptors in trees.c for embedded targets (Nick Smith)
418- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
419- add the OS/2 files in Makefile.in too (Andrew Zabolotny)
420- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
421- fix maketree.c to allow clean compilation of inffixed.h (Mark)
422- fix parameter check in deflateCopy (Gunther Nikl)
423- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
424- Many portability patches by Christian Spieler:
425 . zutil.c, zutil.h: added "const" for zmem*
426 . Make_vms.com: fixed some typos
427 . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
428 . msdos/Makefile.msc: remove "default rtl link library" info from obj files
429 . msdos/Makefile.*: use model-dependent name for the built zlib library
430 . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
431 new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
432- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
433- replace __far with _far for better portability (Christian Spieler, Tom Lane)
434- fix test for errno.h in configure (Tim Newsham)
435
436Changes in 1.1.2 (19 March 98)
437- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
438 See http://www.winimage.com/zLibDll/unzip.html
439- preinitialize the inflate tables for fixed codes, to make the code
440 completely thread safe (Mark)
441- some simplifications and slight speed-up to the inflate code (Mark)
442- fix gzeof on non-compressed files (Allan Schrum)
443- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
444- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
445- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
446- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
447- do not wrap extern "C" around system includes (Tom Lane)
448- mention zlib binding for TCL in README (Andreas Kupries)
449- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
450- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
451- allow "configure --prefix $HOME" (Tim Mooney)
452- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
453- move Makefile.sas to amiga/Makefile.sas
454
455Changes in 1.1.1 (27 Feb 98)
456- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson)
457- remove block truncation heuristic which had very marginal effect for zlib
458 (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
459 compression ratio on some files. This also allows inlining _tr_tally for
460 matches in deflate_slow.
461- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
462
463Changes in 1.1.0 (24 Feb 98)
464- do not return STREAM_END prematurely in inflate (John Bowler)
465- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
466- compile with -DFASTEST to get compression code optimized for speed only
467- in minigzip, try mmap'ing the input file first (Miguel Albrecht)
468- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
469 on Sun but significant on HP)
470
471- add a pointer to experimental unzip library in README (Gilles Vollant)
472- initialize variable gcc in configure (Chris Herborth)
473
474Changes in 1.0.9 (17 Feb 1998)
475- added gzputs and gzgets functions
476- do not clear eof flag in gzseek (Mark Diekhans)
477- fix gzseek for files in transparent mode (Mark Diekhans)
478- do not assume that vsprintf returns the number of bytes written (Jens Krinke)
479- replace EXPORT with ZEXPORT to avoid conflict with other programs
480- added compress2 in zconf.h, zlib.def, zlib.dnt
481- new asm code from Gilles Vollant in contrib/asm386
482- simplify the inflate code (Mark):
483 . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
484 . ZALLOC the length list in inflate_trees_fixed() instead of using stack
485 . ZALLOC the value area for huft_build() instead of using stack
486 . Simplify Z_FINISH check in inflate()
487
488- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
489- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
490- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
491 the declaration of FAR (Gilles VOllant)
492- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
493- read_buf buf parameter of type Bytef* instead of charf*
494- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
495- do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
496- fix check for presence of directories in "make install" (Ian Willis)
497
498Changes in 1.0.8 (27 Jan 1998)
499- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
500- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
501- added compress2() to allow setting the compression level
502- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
503- use constant arrays for the static trees in trees.c instead of computing
504 them at run time (thanks to Ken Raeburn for this suggestion). To create
505 trees.h, compile with GEN_TREES_H and run "make test".
506- check return code of example in "make test" and display result
507- pass minigzip command line options to file_compress
508- simplifying code of inflateSync to avoid gcc 2.8 bug
509
510- support CC="gcc -Wall" in configure -s (QingLong)
511- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
512- fix test for shared library support to avoid compiler warnings
513- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
514- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
515- do not use fdopen for Metrowerks on Mac (Brad Pettit))
516- add checks for gzputc and gzputc in example.c
517- avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
518- use const for the CRC table (Ken Raeburn)
519- fixed "make uninstall" for shared libraries
520- use Tracev instead of Trace in infblock.c
521- in example.c use correct compressed length for test_sync
522- suppress +vnocompatwarnings in configure for HPUX (not always supported)
523
524Changes in 1.0.7 (20 Jan 1998)
525- fix gzseek which was broken in write mode
526- return error for gzseek to negative absolute position
527- fix configure for Linux (Chun-Chung Chen)
528- increase stack space for MSC (Tim Wegner)
529- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
530- define EXPORTVA for gzprintf (Gilles Vollant)
531- added man page zlib.3 (Rick Rodgers)
532- for contrib/untgz, fix makedir() and improve Makefile
533
534- check gzseek in write mode in example.c
535- allocate extra buffer for seeks only if gzseek is actually called
536- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
537- add inflateSyncPoint in zconf.h
538- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
539
540Changes in 1.0.6 (19 Jan 1998)
541- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
542 gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
543- Fix a deflate bug occurring only with compression level 0 (thanks to
544 Andy Buckler for finding this one).
545- In minigzip, pass transparently also the first byte for .Z files.
546- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
547- check Z_FINISH in inflate (thanks to Marc Schluper)
548- Implement deflateCopy (thanks to Adam Costello)
549- make static libraries by default in configure, add --shared option.
550- move MSDOS or Windows specific files to directory msdos
551- suppress the notion of partial flush to simplify the interface
552 (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
553- suppress history buffer provided by application to simplify the interface
554 (this feature was not implemented anyway in 1.0.4)
555- next_in and avail_in must be initialized before calling inflateInit or
556 inflateInit2
557- add EXPORT in all exported functions (for Windows DLL)
558- added Makefile.nt (thanks to Stephen Williams)
559- added the unsupported "contrib" directory:
560 contrib/asm386/ by Gilles Vollant <info@winimage.com>
561 386 asm code replacing longest_match().
562 contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
563 A C++ I/O streams interface to the zlib gz* functions
564