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Diffstat (limited to 'README')
| -rw-r--r-- | README | 62 |
1 files changed, 43 insertions, 19 deletions
@@ -1,4 +1,4 @@ -zlib 1.0.5 is a general purpose data compression library. All the code +zlib 1.0.7 is a general purpose data compression library. All the code is reentrant (thread safe). The data format used by the zlib library is described by RFCs (Request for Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate @@ -19,27 +19,54 @@ makefiles such as Makefile.msc; for VMS, use Make_vms.com or descrip.mms. Questions about zlib should be sent to <zlib@quest.jpl.nasa.gov> or, if this fails, to the addresses given below in the Copyright section. The zlib home page is http://www.cdrom.com/pub/infozip/zlib/ - -The changes made in version 1.0.5 are documented in the file ChangeLog. -The main changes since 1.0.4 are: - -- Fix inflate to terminate gracefully when fed corrupted or invalid data -- Use const for rommable constants in inflate - +The official zlib ftp site is ftp://ftp.cdrom.com/pub/infozip/zlib/ +Mark Nelson wrote an article about zlib for the Jan. 1997 issue of +Dr. Dobb's Journal; a copy of the article is available in +http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm + +The changes made in version 1.0.7 are documented in the file ChangeLog. +The main changes since 1.0.6 are: + +- fix gzseek which was broken in write mode +- return error for gzseek to negative absolute position +- fix configure for Linux (Chun-Chung Chen) +- increase stack space for MSC (Tim Wegner) +- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) +- define EXPORTVA for gzprintf (Gilles Vollant) +- added mini man page zlib.3 (Rick Rodgers) [volunteers to write full + man pages from zlib.h most welcome. write to jloup@gzip.org] +- for contrib/untgz, fix makedir() and improve Makefile + +Unsupported third party contributions are provided in directory "contrib". + +A Java implementation of zlib is available in the Java Development Kit 1.1 +http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html +See the zlib home page http://www.cdrom.com/pub/infozip/zlib/ for details. A Perl interface to zlib written by Paul Marquess <pmarquess@bfsec.bt.co.uk> is in the CPAN (Comprehensive Perl Archive Network) sites, such as: ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib* +A Python interface to zlib written by A.M. Kuchling <amk@magnet.com> +is available from the Python Software Association sites, such as: +ftp://ftp.python.org/pub/python/contrib/Encoding/zlib*.tar.gz Notes for some targets: -- For Turbo C the small model is supported only with reduced performance to - avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 +- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc + and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL + The zlib DLL support was initially done by Alessandro Iacopetti and is + now maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL + home page at http://www.winimage.com/zLibDll -- For 64-bit Iris, deflate.c must be compiled without any optimization. + From Visual Basic, you can call the DLL functions which do not take + a structure as argument: compress, uncompress and all gz* functions. + See contrib/visual-basic.txt for more information. + I don't know how to handle structures in Visual Basic, sorry. + +- For 64-bit Irix, deflate.c must be compiled without any optimization. With -O, one libpng test fails. The test works in 32 bit mode (with - the -32 compiler flag). The compiler bug has been reported to SGI. + the -n32 compiler flag). The compiler bug has been reported to SGI. - zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works when compiled with cc. @@ -47,14 +74,11 @@ Notes for some targets: - zlib doesn't work on HP-UX 9.05 with one cc compiler (the one not accepting the -O option). It works with the other cc compiler. -- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc - and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL - For help on building a zlib DLL, contact Alessandro Iacopetti - <iaco@email.alessandria.alpcom.it> http://lisa.unial.it/iaco , - or contact Brad Clarke <bclarke@cyberus.ca>. - - gzdopen is not supported on RISCOS +- For Turbo C the small model is supported only with reduced performance to + avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 + Acknowledgments: @@ -84,7 +108,7 @@ Copyright notice: 3. This notice may not be removed or altered from any source distribution. Jean-loup Gailly Mark Adler - gzip@prep.ai.mit.edu madler@alumni.caltech.edu + jloup@gzip.org madler@alumni.caltech.edu If you use the zlib library in a product, we would appreciate *not* receiving lengthy legal documents to sign. The sources are provided |