6 * Added explicit version checking
10 * Documentation updates.
12 * Fix append mode with gzopen.
15 * Allow gzopen to read from and write to a scalar reference.
21 2.000_14 26 October 2006
29 2.000_12 16 April 2006
31 * Fixed gzread to zap the output buffer to an empty string when zero
32 bytes are requested. This matches the behaviour of C::Z 1.x
34 2.000_11 10 April 2006
38 2.000_10 13 March 2006
40 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
41 is called after eof. In this case it will write an empty string
42 into the output parameter. This change is solely for backward
43 compatability reasons.
51 * Breakout zlib specific code into separate modules.
53 * Limited support for reading/writing zip files
55 2.000_06 5 October 2005
57 * Added eof parameter to Compress::Zlib::inflate method.
59 * Fixed issue with 64-bit
61 2.000_05 4 October 2005
63 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
65 2.000_04 23 September 2005
67 * Fixed some more non-portable test that were failing on VMS.
69 * fixed problem where error messages in the oneshot interface were
72 2.000_03 12 September 2005
74 * Fixed some non-portable test that were failing on VMS.
76 * Fixed export of zlib constants from the IO::* classes
78 2.000_02 6 September 2005
80 * Split Append mode into Append and Merge
82 * Fixed typos in the documentation.
86 * Added libscan to Makefile.PL
88 * Added InputLength for IO::Gunzip et al
90 2.000_01 22 August 2005
92 * Fixed VERSION in Compress::Gzip::Constants
94 * Removed Compress::Gzip::Info from the distribution.
96 2.000_00 21 August 2005
98 * First Beta relase of Compress::zlib rewrite.
100 1.38 - 6 September 2005
102 * Integrate core change 25304 -- Symbian Update
104 * Added libscan to Makefile.PL
106 1.37 - 12 August 2005
108 * Change to t/03examples.t for VMS from Abe Timmerman
112 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
114 * Fixed Makefile.PL for VMS
116 * Fixed t/03examples.t for VMS
118 * Added a couple of notes about incompatibility with Unix compress.
122 * Updated zlib source to 1.2.3
124 * Fixed problem with where two calls to gzclose would hang the debugger.
125 See https://rt.cpan.org/Ticket/Display.html?id=13789
127 * Added code from Alexey Tourbin to use XSLoader when available,
128 and DynaLoader otherwise.
130 * Documented that the compress & uncompress functions were not
131 the same as the Unix utilities of the same name.
133 * Fixed 05gzsetp -- it left a temp file hanging around.
135 * Integrate core change 24787 - SvUPGRADE returns void in blead
137 * Integrate core change 24788 - Makefile.PL adjustments for the core
140 1.34 - 30 January 2005
142 * Fixed typo in the README
144 * Fixed examples.t on Win32 where paths have embedded whitespace.
146 * Fix for Cygwin and core integration from Jos I. Boumans
148 * Upgrade zlib source to 1.2.2
150 1.33 - 14 January 2004
152 * Reworked Makefile.PL to avoid creating a private copy of zlib.
153 This both simplifies the build, plus it makes life easier for VMS.
155 * Patches for Makefile.PL to get it to work on VMS supplied by
158 * memGunzip has very slow on FreeBSD. Turns out to be down to
159 the way realloc works on FreeBSD. Changed both inflate & deflate
160 to use exponentially increasing buffer sizes when they need to
161 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
164 1.32 - 26 November 2003
166 * Steve Hay reported a problem on rt.cpan.org with Windows and
167 MSCV++ 6.0 where the source from the zlib directory was getting
168 installed with the rest of the module.
169 https://rt.cpan.org/Ticket/Display.html?id=1741
171 This has been fixed by renaming the "zlib" directory to "zlib-src"
172 thus avoiding a conflict with the name of this Perl module.
174 * Fixed a bug in the inflate method where the input buffer is an
175 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
177 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
178 True. Issue spotted by Ralf S. Engelschall.
180 1.31 - 29 October 2003
182 * Reinstated the creation of .bak files - $^I seems to need a
183 backup file on Windows. For OpenVMS, the extenstion _bak is used.
185 1.30 - 28 October 2003
187 * Bundled a sub-set of the zlib source with the module and changed
188 the default make behaviour to build with the included zlib source.
189 The previous behaviour of using a pre-built zlib library is
190 still available for those that want it.
192 * Added prototypes to the subs in Zlib.pm that didn't already have
193 them. Patch from Ed Avis.
195 * No .bak files are created by Makefile.PL any more - this keep
196 distclean much happier. Patch suggested by Ed Avis.
197 This also fixes a similar problem reported by Dr. Martin Zinser
200 * Documentation for some of the gz functions updated.
202 * Format strings modified in DispStream to keep OpenVMS happy.
203 Problem reported by Dr. Martin Zinser.
208 * Makefile.PL now displays a warning about not installing
209 Compress::Zlib via the CPAN shell.
211 * Fix to allow intermingling of gzread & gzreadline - patch
212 supplied by Doug Perham.
214 * memGunzip will silently now work if the gzip trailer is
215 missing. Some HTTP Origin Servers seem to leave it out.
219 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
221 * Added a few words about the problems with Mac OS X to the README file.
225 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
226 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
227 was opened ok. If gzopen failed, $gzerrno was being set correctly.
228 This problem wasn't spotted before because the typical test
229 to determine whether gzopen passed or failed was to check its
232 1.19 - 31 October 2002
234 * fixed a problem with t/02zlib.t that was failing with redhat 8.
236 1.18 - 24 October 2002
238 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
240 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
241 variable to config.in to flag an old version of zlib. Split
242 out the tests for gzsetparams into t/05gzsetp.t
246 * Moved the test to check the versions of libz & zlib.h into a separate
247 file and added troubleshooting notes to README.
249 * In gzopen, only attempt to call "tell" for normal files.
251 * Fixed to work in taint mode.
253 * Broke changes out of README into Changes file.
255 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
256 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
258 1.16 - 13 December 2001
260 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
263 1.15 - 4th December 2001
265 * Changes a few types to get the module to build on 64-bit Solaris
267 * Changed the up/downgrade logic to default to the older constructs, and
268 to only call a downgrade if specifically requested. Some older versions
269 of Perl were having problems with the in-place edit.
271 * added the new XS constant code.
273 1.14 - 27th August 2001
275 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
276 reporting the bug and to Anton Berezin for fixing it for me.
278 1.13 - 31st June 2001
280 * Make sure config.in is consistant when released.
282 1.12 - 28th April 2001
284 * Modified Makefile.PL to only enable the warnings pragma if
285 using perl 5.6.1 or better.
287 1.11 - 17th February 2001
289 * Added logic in Makefile.PL to toggle between using $^W and
290 the warnings pragma in the module.
292 * The module, the examples & the test harness are now all strict
295 1.10 - 5th February 2001
297 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
299 1.09 - 15th January 2001
301 * Silenced a few compiler warnings.
303 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
305 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
306 -- spotted by Frank Martini.
308 * Mention Archive::Zip
310 * added memGunzip. This is largely based on code provided by Jim Leonard.
312 * $deflate->flush can now take an optional parameter. Valid
313 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
314 and Z_FINISH. The default is Z_FINISH.
318 * uncompress was clobbering its input parameter. Now it doesn't.
319 This bug was spotted by Deven T. Corzine.
321 * If a variable that only ever contained a number was given
322 to compress or deflate, it would not be compressed properly. Now
323 it will be coerced to a string and then compressed. This bug
324 was spotted by Deven T. Corzine.
328 * ANSI-ified the static functions in Zlib.xs
330 * Added the ability to build zlib along with the module.
331 This feature is 90% based on a Makefile provided by Gurusamy
336 * Fixed a nasty problem where inflate could truncate the data
337 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
338 for both spotting the problem and fixing the bug.
340 * Added a note about the undocumented features in zlib that are
341 required when accessing zip files.
343 * gzclose will now get called automatically when the gzip object is
348 * Previous release used newSVpvn, which doesn't exist in 5.004_04
349 or earlier. Changed to use newSVpv instead.
351 * The module needs Perl 5.004 or better, so updated the version
352 checking in Zlib.pm and Makefile.PL
356 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
360 * Updated to use the new PL_ symbols.
361 Means the module can be built with Perl 5.005_5*
365 * The return codes for gzread, gzreadline and gzwrite were
366 documented incorrectly as returning a status code.
368 * The test harness was missing a "gzclose". This caused problem
369 showed up on an amiga. Thanks to Erik van Roode for reporting
372 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
376 * A number of fixes to the test suite and the example scripts to
377 allow them to work under win32. All courtesy of Gurusamy
382 * Fixed crc32 & adler32. They were very broken.
384 * The following functions can now take a scalar reference in
385 place of a scalar for their buffer parameters:
394 This should mean applications that make use of the module don't
395 have to copy large buffers around.
398 * Normally the inflate method consumes I<all> of the input buffer
399 before returning. The exception to this is when inflate detects
400 the end of the stream (Z_STREAM_END). In this case the input
401 buffer need not be completely consumed. To allow processing of
402 file formats that embed a deflation stream (e.g. zip, gzip),
403 the inflate method now sets the buffer parameter to be what
404 remains after inflation.
406 When the return status is Z_STREAM_END, it will be what remains
407 of the buffer (if any) after deflation. When the status is Z_OK
408 it will be an empty string.
410 This change means that the buffer parameter must be a lvalue.
412 * Fixed crc32 and adler32. They were both very broken.
414 * Added the Compress::Zlib::memGzip function.
416 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
418 The optional parameters for deflateInit and inflateInit can now
419 be specified as an associative array in addition to a reference
420 to an associative array. They can also accept the -Name
423 gzopen can now optionally take a reference to an open
424 filehandle in place of a filename. In this case it will call
427 Added gzstream example script.
429 0.4 - Upgrade to support zlib 0.99
431 Added dictionary interface.
433 Fixed bug in gzreadline - previously it would keep returning
434 the same buffer. This bug was reported by Helmut Jarausch
436 Removed dependency to zutil.h and so dropped support for
438 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
439 DEF_WBITS (use MAX_WBITS instead)
441 0.3 - Added prototype specification.
443 0.2 - Fixed a minor allocation problem in Zlib.xs
445 0.1 - first alpha release. 2nd October 1995