8 2.000_14 26 October 2006
16 2.000_12 16 April 2006
18 * Fixed gzread to zap the output buffer to an empty string when zero
19 bytes are requested. This matches the behaviour of C::Z 1.x
21 2.000_11 10 April 2006
25 2.000_10 13 March 2006
27 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
28 is called after eof. In this case it will write an empty string
29 into the output parameter. This change is solely for backward
30 compatability reasons.
38 * Breakout zlib specific code into separate modules.
40 * Limited support for reading/writing zip files
42 2.000_06 5 October 2005
44 * Added eof parameter to Compress::Zlib::inflate method.
46 * Fixed issue with 64-bit
48 2.000_05 4 October 2005
50 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
52 2.000_04 23 September 2005
54 * Fixed some more non-portable test that were failing on VMS.
56 * fixed problem where error messages in the oneshot interface were
59 2.000_03 12 September 2005
61 * Fixed some non-portable test that were failing on VMS.
63 * Fixed export of zlib constants from the IO::* classes
65 2.000_02 6 September 2005
67 * Split Append mode into Append and Merge
69 * Fixed typos in the documentation.
73 * Added libscan to Makefile.PL
75 * Added InputLength for IO::Gunzip et al
77 2.000_01 22 August 2005
79 * Fixed VERSION in Compress::Gzip::Constants
81 * Removed Compress::Gzip::Info from the distribution.
83 2.000_00 21 August 2005
85 * First Beta relase of Compress::zlib rewrite.
87 1.38 - 6 September 2005
89 * Integrate core change 25304 -- Symbian Update
91 * Added libscan to Makefile.PL
95 * Change to t/03examples.t for VMS from Abe Timmerman
99 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
101 * Fixed Makefile.PL for VMS
103 * Fixed t/03examples.t for VMS
105 * Added a couple of notes about incompatibility with Unix compress.
109 * Updated zlib source to 1.2.3
111 * Fixed problem with where two calls to gzclose would hang the debugger.
112 See https://rt.cpan.org/Ticket/Display.html?id=13789
114 * Added code from Alexey Tourbin to use XSLoader when available,
115 and DynaLoader otherwise.
117 * Documented that the compress & uncompress functions were not
118 the same as the Unix utilities of the same name.
120 * Fixed 05gzsetp -- it left a temp file hanging around.
122 * Integrate core change 24787 - SvUPGRADE returns void in blead
124 * Integrate core change 24788 - Makefile.PL adjustments for the core
127 1.34 - 30 January 2005
129 * Fixed typo in the README
131 * Fixed examples.t on Win32 where paths have embedded whitespace.
133 * Fix for Cygwin and core integration from Jos I. Boumans
135 * Upgrade zlib source to 1.2.2
137 1.33 - 14 January 2004
139 * Reworked Makefile.PL to avoid creating a private copy of zlib.
140 This both simplifies the build, plus it makes life easier for VMS.
142 * Patches for Makefile.PL to get it to work on VMS supplied by
145 * memGunzip has very slow on FreeBSD. Turns out to be down to
146 the way realloc works on FreeBSD. Changed both inflate & deflate
147 to use exponentially increasing buffer sizes when they need to
148 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
151 1.32 - 26 November 2003
153 * Steve Hay reported a problem on rt.cpan.org with Windows and
154 MSCV++ 6.0 where the source from the zlib directory was getting
155 installed with the rest of the module.
156 https://rt.cpan.org/Ticket/Display.html?id=1741
158 This has been fixed by renaming the "zlib" directory to "zlib-src"
159 thus avoiding a conflict with the name of this Perl module.
161 * Fixed a bug in the inflate method where the input buffer is an
162 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
164 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
165 True. Issue spotted by Ralf S. Engelschall.
167 1.31 - 29 October 2003
169 * Reinstated the creation of .bak files - $^I seems to need a
170 backup file on Windows. For OpenVMS, the extenstion _bak is used.
172 1.30 - 28 October 2003
174 * Bundled a sub-set of the zlib source with the module and changed
175 the default make behaviour to build with the included zlib source.
176 The previous behaviour of using a pre-built zlib library is
177 still available for those that want it.
179 * Added prototypes to the subs in Zlib.pm that didn't already have
180 them. Patch from Ed Avis.
182 * No .bak files are created by Makefile.PL any more - this keep
183 distclean much happier. Patch suggested by Ed Avis.
184 This also fixes a similar problem reported by Dr. Martin Zinser
187 * Documentation for some of the gz functions updated.
189 * Format strings modified in DispStream to keep OpenVMS happy.
190 Problem reported by Dr. Martin Zinser.
195 * Makefile.PL now displays a warning about not installing
196 Compress::Zlib via the CPAN shell.
198 * Fix to allow intermingling of gzread & gzreadline - patch
199 supplied by Doug Perham.
201 * memGunzip will silently now work if the gzip trailer is
202 missing. Some HTTP Origin Servers seem to leave it out.
206 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
208 * Added a few words about the problems with Mac OS X to the README file.
212 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
213 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
214 was opened ok. If gzopen failed, $gzerrno was being set correctly.
215 This problem wasn't spotted before because the typical test
216 to determine whether gzopen passed or failed was to check its
219 1.19 - 31 October 2002
221 * fixed a problem with t/02zlib.t that was failing with redhat 8.
223 1.18 - 24 October 2002
225 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
227 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
228 variable to config.in to flag an old version of zlib. Split
229 out the tests for gzsetparams into t/05gzsetp.t
233 * Moved the test to check the versions of libz & zlib.h into a separate
234 file and added troubleshooting notes to README.
236 * In gzopen, only attempt to call "tell" for normal files.
238 * Fixed to work in taint mode.
240 * Broke changes out of README into Changes file.
242 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
243 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
245 1.16 - 13 December 2001
247 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
250 1.15 - 4th December 2001
252 * Changes a few types to get the module to build on 64-bit Solaris
254 * Changed the up/downgrade logic to default to the older constructs, and
255 to only call a downgrade if specifically requested. Some older versions
256 of Perl were having problems with the in-place edit.
258 * added the new XS constant code.
260 1.14 - 27th August 2001
262 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
263 reporting the bug and to Anton Berezin for fixing it for me.
265 1.13 - 31st June 2001
267 * Make sure config.in is consistant when released.
269 1.12 - 28th April 2001
271 * Modified Makefile.PL to only enable the warnings pragma if
272 using perl 5.6.1 or better.
274 1.11 - 17th February 2001
276 * Added logic in Makefile.PL to toggle between using $^W and
277 the warnings pragma in the module.
279 * The module, the examples & the test harness are now all strict
282 1.10 - 5th February 2001
284 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
286 1.09 - 15th January 2001
288 * Silenced a few compiler warnings.
290 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
292 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
293 -- spotted by Frank Martini.
295 * Mention Archive::Zip
297 * added memGunzip. This is largely based on code provided by Jim Leonard.
299 * $deflate->flush can now take an optional parameter. Valid
300 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
301 and Z_FINISH. The default is Z_FINISH.
305 * uncompress was clobbering its input parameter. Now it doesn't.
306 This bug was spotted by Deven T. Corzine.
308 * If a variable that only ever contained a number was given
309 to compress or deflate, it would not be compressed properly. Now
310 it will be coerced to a string and then compressed. This bug
311 was spotted by Deven T. Corzine.
315 * ANSI-ified the static functions in Zlib.xs
317 * Added the ability to build zlib along with the module.
318 This feature is 90% based on a Makefile provided by Gurusamy
323 * Fixed a nasty problem where inflate could truncate the data
324 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
325 for both spotting the problem and fixing the bug.
327 * Added a note about the undocumented features in zlib that are
328 required when accessing zip files.
330 * gzclose will now get called automatically when the gzip object is
335 * Previous release used newSVpvn, which doesn't exist in 5.004_04
336 or earlier. Changed to use newSVpv instead.
338 * The module needs Perl 5.004 or better, so updated the version
339 checking in Zlib.pm and Makefile.PL
343 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
347 * Updated to use the new PL_ symbols.
348 Means the module can be built with Perl 5.005_5*
352 * The return codes for gzread, gzreadline and gzwrite were
353 documented incorrectly as returning a status code.
355 * The test harness was missing a "gzclose". This caused problem
356 showed up on an amiga. Thanks to Erik van Roode for reporting
359 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
363 * A number of fixes to the test suite and the example scripts to
364 allow them to work under win32. All courtesy of Gurusamy
369 * Fixed crc32 & adler32. They were very broken.
371 * The following functions can now take a scalar reference in
372 place of a scalar for their buffer parameters:
381 This should mean applications that make use of the module don't
382 have to copy large buffers around.
385 * Normally the inflate method consumes I<all> of the input buffer
386 before returning. The exception to this is when inflate detects
387 the end of the stream (Z_STREAM_END). In this case the input
388 buffer need not be completely consumed. To allow processing of
389 file formats that embed a deflation stream (e.g. zip, gzip),
390 the inflate method now sets the buffer parameter to be what
391 remains after inflation.
393 When the return status is Z_STREAM_END, it will be what remains
394 of the buffer (if any) after deflation. When the status is Z_OK
395 it will be an empty string.
397 This change means that the buffer parameter must be a lvalue.
399 * Fixed crc32 and adler32. They were both very broken.
401 * Added the Compress::Zlib::memGzip function.
403 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
405 The optional parameters for deflateInit and inflateInit can now
406 be specified as an associative array in addition to a reference
407 to an associative array. They can also accept the -Name
410 gzopen can now optionally take a reference to an open
411 filehandle in place of a filename. In this case it will call
414 Added gzstream example script.
416 0.4 - Upgrade to support zlib 0.99
418 Added dictionary interface.
420 Fixed bug in gzreadline - previously it would keep returning
421 the same buffer. This bug was reported by Helmut Jarausch
423 Removed dependency to zutil.h and so dropped support for
425 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
426 DEF_WBITS (use MAX_WBITS instead)
428 0.3 - Added prototype specification.
430 0.2 - Fixed a minor allocation problem in Zlib.xs
432 0.1 - first alpha release. 2nd October 1995