6 * Minor documentation changes in README
8 2.007 22 September 20007
10 * lib/Compress/Zlib.pm -- 1.x Backward Compatability issues
11 gzclose - documented return value was wrong, should be 0 for ok.
12 gzflush - return value didn't match 1.x, should return 0 if ok.
13 [rt.cpan.org #29215] and Debian bug #440943 http://bugs.debian.org/440943
15 2.006 1 September 20007
18 Added INSTALLDIRS directive to install as a core module when built
22 Fixed crc32 and adler32 tests in to remove ascii assumption.
24 * lib/Compress/Zlib.pm
25 Make gzreadline not support $/, just like in Compress::Zlib 1.x
26 Folk who want $/ with readline support can get it in
27 IO::Uncompress::Gunzip.
28 [rt.cpan.org #28663] and Debian bug #435656 http://bugs.debian.org/435656
31 * Added info about removing Compress::Zlib version 1, before
36 * rewrote memGzip using IO::Compress::Gzip::gzip
40 * Added explicit version checking
42 2.002 29 December 2006
44 * Documentation updates.
46 * Fix append mode with gzopen.
49 * Allow gzopen to read from and write to a scalar reference.
55 2.000_14 26 October 2006
63 2.000_12 16 April 2006
65 * Fixed gzread to zap the output buffer to an empty string when zero
66 bytes are requested. This matches the behaviour of C::Z 1.x
68 2.000_11 10 April 2006
72 2.000_10 13 March 2006
74 * Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
75 is called after eof. In this case it will write an empty string
76 into the output parameter. This change is solely for backward
77 compatability reasons.
85 * Breakout zlib specific code into separate modules.
87 * Limited support for reading/writing zip files
89 2.000_06 5 October 2005
91 * Added eof parameter to Compress::Zlib::inflate method.
93 * Fixed issue with 64-bit
95 2.000_05 4 October 2005
97 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
99 2.000_04 23 September 2005
101 * Fixed some more non-portable test that were failing on VMS.
103 * fixed problem where error messages in the oneshot interface were
106 2.000_03 12 September 2005
108 * Fixed some non-portable test that were failing on VMS.
110 * Fixed export of zlib constants from the IO::* classes
112 2.000_02 6 September 2005
114 * Split Append mode into Append and Merge
116 * Fixed typos in the documentation.
120 * Added libscan to Makefile.PL
122 * Added InputLength for IO::Gunzip et al
124 2.000_01 22 August 2005
126 * Fixed VERSION in Compress::Gzip::Constants
128 * Removed Compress::Gzip::Info from the distribution.
130 2.000_00 21 August 2005
132 * First Beta relase of Compress::zlib rewrite.
134 1.38 - 6 September 2005
136 * Integrate core change 25304 -- Symbian Update
138 * Added libscan to Makefile.PL
140 1.37 - 12 August 2005
142 * Change to t/03examples.t for VMS from Abe Timmerman
146 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
148 * Fixed Makefile.PL for VMS
150 * Fixed t/03examples.t for VMS
152 * Added a couple of notes about incompatibility with Unix compress.
156 * Updated zlib source to 1.2.3
158 * Fixed problem with where two calls to gzclose would hang the debugger.
159 See https://rt.cpan.org/Ticket/Display.html?id=13789
161 * Added code from Alexey Tourbin to use XSLoader when available,
162 and DynaLoader otherwise.
164 * Documented that the compress & uncompress functions were not
165 the same as the Unix utilities of the same name.
167 * Fixed 05gzsetp -- it left a temp file hanging around.
169 * Integrate core change 24787 - SvUPGRADE returns void in blead
171 * Integrate core change 24788 - Makefile.PL adjustments for the core
174 1.34 - 30 January 2005
176 * Fixed typo in the README
178 * Fixed examples.t on Win32 where paths have embedded whitespace.
180 * Fix for Cygwin and core integration from Jos I. Boumans
182 * Upgrade zlib source to 1.2.2
184 1.33 - 14 January 2004
186 * Reworked Makefile.PL to avoid creating a private copy of zlib.
187 This both simplifies the build, plus it makes life easier for VMS.
189 * Patches for Makefile.PL to get it to work on VMS supplied by
192 * memGunzip has very slow on FreeBSD. Turns out to be down to
193 the way realloc works on FreeBSD. Changed both inflate & deflate
194 to use exponentially increasing buffer sizes when they need to
195 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
198 1.32 - 26 November 2003
200 * Steve Hay reported a problem on rt.cpan.org with Windows and
201 MSCV++ 6.0 where the source from the zlib directory was getting
202 installed with the rest of the module.
203 https://rt.cpan.org/Ticket/Display.html?id=1741
205 This has been fixed by renaming the "zlib" directory to "zlib-src"
206 thus avoiding a conflict with the name of this Perl module.
208 * Fixed a bug in the inflate method where the input buffer is an
209 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
211 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
212 True. Issue spotted by Ralf S. Engelschall.
214 1.31 - 29 October 2003
216 * Reinstated the creation of .bak files - $^I seems to need a
217 backup file on Windows. For OpenVMS, the extenstion _bak is used.
219 1.30 - 28 October 2003
221 * Bundled a sub-set of the zlib source with the module and changed
222 the default make behaviour to build with the included zlib source.
223 The previous behaviour of using a pre-built zlib library is
224 still available for those that want it.
226 * Added prototypes to the subs in Zlib.pm that didn't already have
227 them. Patch from Ed Avis.
229 * No .bak files are created by Makefile.PL any more - this keep
230 distclean much happier. Patch suggested by Ed Avis.
231 This also fixes a similar problem reported by Dr. Martin Zinser
234 * Documentation for some of the gz functions updated.
236 * Format strings modified in DispStream to keep OpenVMS happy.
237 Problem reported by Dr. Martin Zinser.
242 * Makefile.PL now displays a warning about not installing
243 Compress::Zlib via the CPAN shell.
245 * Fix to allow intermingling of gzread & gzreadline - patch
246 supplied by Doug Perham.
248 * memGunzip will silently now work if the gzip trailer is
249 missing. Some HTTP Origin Servers seem to leave it out.
253 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
255 * Added a few words about the problems with Mac OS X to the README file.
259 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
260 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
261 was opened ok. If gzopen failed, $gzerrno was being set correctly.
262 This problem wasn't spotted before because the typical test
263 to determine whether gzopen passed or failed was to check its
266 1.19 - 31 October 2002
268 * fixed a problem with t/02zlib.t that was failing with redhat 8.
270 1.18 - 24 October 2002
272 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
274 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
275 variable to config.in to flag an old version of zlib. Split
276 out the tests for gzsetparams into t/05gzsetp.t
280 * Moved the test to check the versions of libz & zlib.h into a separate
281 file and added troubleshooting notes to README.
283 * In gzopen, only attempt to call "tell" for normal files.
285 * Fixed to work in taint mode.
287 * Broke changes out of README into Changes file.
289 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
290 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
292 1.16 - 13 December 2001
294 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
297 1.15 - 4th December 2001
299 * Changes a few types to get the module to build on 64-bit Solaris
301 * Changed the up/downgrade logic to default to the older constructs, and
302 to only call a downgrade if specifically requested. Some older versions
303 of Perl were having problems with the in-place edit.
305 * added the new XS constant code.
307 1.14 - 27th August 2001
309 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
310 reporting the bug and to Anton Berezin for fixing it for me.
312 1.13 - 31st June 2001
314 * Make sure config.in is consistant when released.
316 1.12 - 28th April 2001
318 * Modified Makefile.PL to only enable the warnings pragma if
319 using perl 5.6.1 or better.
321 1.11 - 17th February 2001
323 * Added logic in Makefile.PL to toggle between using $^W and
324 the warnings pragma in the module.
326 * The module, the examples & the test harness are now all strict
329 1.10 - 5th February 2001
331 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
333 1.09 - 15th January 2001
335 * Silenced a few compiler warnings.
337 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
339 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
340 -- spotted by Frank Martini.
342 * Mention Archive::Zip
344 * added memGunzip. This is largely based on code provided by Jim Leonard.
346 * $deflate->flush can now take an optional parameter. Valid
347 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
348 and Z_FINISH. The default is Z_FINISH.
352 * uncompress was clobbering its input parameter. Now it doesn't.
353 This bug was spotted by Deven T. Corzine.
355 * If a variable that only ever contained a number was given
356 to compress or deflate, it would not be compressed properly. Now
357 it will be coerced to a string and then compressed. This bug
358 was spotted by Deven T. Corzine.
362 * ANSI-ified the static functions in Zlib.xs
364 * Added the ability to build zlib along with the module.
365 This feature is 90% based on a Makefile provided by Gurusamy
370 * Fixed a nasty problem where inflate could truncate the data
371 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
372 for both spotting the problem and fixing the bug.
374 * Added a note about the undocumented features in zlib that are
375 required when accessing zip files.
377 * gzclose will now get called automatically when the gzip object is
382 * Previous release used newSVpvn, which doesn't exist in 5.004_04
383 or earlier. Changed to use newSVpv instead.
385 * The module needs Perl 5.004 or better, so updated the version
386 checking in Zlib.pm and Makefile.PL
390 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
394 * Updated to use the new PL_ symbols.
395 Means the module can be built with Perl 5.005_5*
399 * The return codes for gzread, gzreadline and gzwrite were
400 documented incorrectly as returning a status code.
402 * The test harness was missing a "gzclose". This caused problem
403 showed up on an amiga. Thanks to Erik van Roode for reporting
406 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
410 * A number of fixes to the test suite and the example scripts to
411 allow them to work under win32. All courtesy of Gurusamy
416 * Fixed crc32 & adler32. They were very broken.
418 * The following functions can now take a scalar reference in
419 place of a scalar for their buffer parameters:
428 This should mean applications that make use of the module don't
429 have to copy large buffers around.
432 * Normally the inflate method consumes I<all> of the input buffer
433 before returning. The exception to this is when inflate detects
434 the end of the stream (Z_STREAM_END). In this case the input
435 buffer need not be completely consumed. To allow processing of
436 file formats that embed a deflation stream (e.g. zip, gzip),
437 the inflate method now sets the buffer parameter to be what
438 remains after inflation.
440 When the return status is Z_STREAM_END, it will be what remains
441 of the buffer (if any) after deflation. When the status is Z_OK
442 it will be an empty string.
444 This change means that the buffer parameter must be a lvalue.
446 * Fixed crc32 and adler32. They were both very broken.
448 * Added the Compress::Zlib::memGzip function.
450 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
452 The optional parameters for deflateInit and inflateInit can now
453 be specified as an associative array in addition to a reference
454 to an associative array. They can also accept the -Name
457 gzopen can now optionally take a reference to an open
458 filehandle in place of a filename. In this case it will call
461 Added gzstream example script.
463 0.4 - Upgrade to support zlib 0.99
465 Added dictionary interface.
467 Fixed bug in gzreadline - previously it would keep returning
468 the same buffer. This bug was reported by Helmut Jarausch
470 Removed dependency to zutil.h and so dropped support for
472 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
473 DEF_WBITS (use MAX_WBITS instead)
475 0.3 - Added prototype specification.
477 0.2 - Fixed a minor allocation problem in Zlib.xs
479 0.1 - first alpha release. 2nd October 1995