Home / MinGW / Extension / xz / xz-5.0.3-2
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xz-5.0.3-2.README.txt 2011-10-13 14.6 kB 11 weekly downloads
xz-5.0.3-2-mingw32-src.tar.lzma 2011-10-13 1.0 MB 11 weekly downloads
xz-5.0.3-2-mingw32-lang.tar.lzma 2011-10-13 21.3 kB 8080 weekly downloads
xz-5.0.3-2-mingw32-lic.tar.lzma 2011-10-13 19.8 kB 8080 weekly downloads
xz-5.0.3-2-mingw32-doc.tar.lzma 2011-10-13 301.5 kB 8080 weekly downloads
liblzma-5.0.3-2-mingw32-dll-5.tar.lzma 2011-10-13 63.9 kB 9494 weekly downloads
xz-5.0.3-2-mingw32-bin.tar.lzma 2011-10-13 45.0 kB 9393 weekly downloads
liblzma-5.0.3-2-mingw32-dev.tar.lzma 2011-10-13 221.2 kB 156156 weekly downloads
mingw32 xz ======================================================================== This package provides a data compression library and utilities supporting the .xz and .lzma file formats, which use the LZMA compression algorithm. LZMA provides high compression ratios and very fast decompression, with minimal memory requirements for decompression. XZ Utils is the latest generation of this software, supplanting the older LZMA Utils. XZ Utils provides the xz tool, which supports the new .xz file format usually indicated by the extension '.xz'. Internally, it uses a variation of the original LZMA compression algorithm, called LZMA2. However, the new xz tool also seamlessly supports the older .lzma files and LZMA1 compression. Release: xz-5.0.3-2-mingw32 Files: xz-5.0.3-2-mingw32-src.tar.lzma (full source code) xz-5.0.3-2-mingw32-bin.tar.lzma (utilities, scripts) xz-5.0.3-2-mingw32-doc.tar.lzma (FAQ, readmes, manpages) xz-5.0.3-2-mingw32-lang.tar.lzma (i18n support) xz-5.0.3-2-mingw32-lic.tar.lzma (licensing terms) liblzma-5.0.3-2-mingw32-dev.tar.lzma (libraries and headers) liblzma-5.0.3-2-mingw32-dll-5.tar.lzma (redistributable DLL) This distribution incorporates pre-built binary components, which have been specifically compiled for the "mingw32" subsystem; in other words, they comprise binary executables and object libraries suitable for native use on Microsoft's 32-bit Windows operating system. As such, the xz packages should be installed into the /mingw directory (which is usually, but not always, C:\MinGW). For the most part, the binaries and object libraries provided by the xz packages have runtime dependencies detailed below, which generally represent other libraries provided by the MinGW team. (Standard components of the operating system are not listed). However, there are a few exceptions to this general rule: lzcmp xzcmp lzdiff xzdiff lzegrep xzegrep lzfgrep xzfgrep lzgrep xzgrep lzless xzless lzmore xzmore These utilities are provided in the form of Bourne shell scripts, and thus require a Bourne shell to execute. The MinGW Project recommends the use of their own MSYS shell system, but other products may suffice -- YMMV. These scripts CANNOT be invoked directly from Microsoft's cmd.exe. In addition, these scripts may also rely on the presence of other unix-derived utilities. These additional requirements are outlined below, but are usually available in a standard unix or MSYS installation. The preceding exception does NOT apply, in the case of: lzcat.exe xzcat.exe lzma.exe xz.exe lzmadec.exe xzdec.exe unlzma.exe unxz.exe lzmainfo.exe (there is no xzinfo) Each of the above IS suitable for use, directly from cmd.exe (provided the runtime requirements are present). Also, the shared and static library liblzma-5.dll liblzma.a may be used by client programs that are themselves suitable for use from cmd.exe; nothing in the libraries prohibits such operation. Runtime requirements mingw32-libgcc-dll-1 4.6.1-2 mingw32-libintl-dll-8 mingw32-libiconv-dll-2 1.14-1 mingw32-libcharset-dll-1 1.14-1 Additional runtime requirements for helper scripts msys-core-bin 1.0.17-1 msys-coreutils-bin 5.97-3 msys-bash-bin 3.1.17-4 msys-grep-bin 2.5.4-2 Build Requires: mingw32-gcc-core-bin 4.6.1-2 mingw32-binutils-bin 2.21.53-1 mingw32-w32api-dev 3.17-2 mingw32-mingwrt-dev 3.20 mingw32-mingwrt-dll 3.20 mingw32-mgwport-bin 0.10.5-1 mingw32-autoconf 10-1 mingw32-autoconf2.5 2.68-1 mingw32-automake 4-1 mingw32-automake1.11 1.11.1-1 mingw32-gettext-bin mingw32-gettext-dev mingw32-libgettextpo-dll-0 mingw32-libtool 2.4-1 msys-core-bin 1.0.17-1 msys-coreutils-bin 5.97-3 msys-bash-bin 3.1.17-4 msys-patch-bin 2.6.1-1 msys-make-bin 3.82-5 msys-tar-bin 1.23-1 msys-sed-bin 4.2.1-2 msys-gawk-bin 3.1.7-2 msys-gzip-bin 1.3.12-2 msys-bzip2-bin 1.0.6-4 msys-wget-bin 1.12-1 msys-texinfo-bin 4.13a-2 msys-file-bin 5.04-1 msys-cvs-bin 1.12.13-1 msys-perl-bin 5.8.8-1 msys-libcrypt-dll-0 1.1_1-3 msys-libgdbm-dll-3 1.8.3-3 msys-zlib-dll 1.2.5-4 Canonical homepage: http://tukaani.org/xz/ Canonical download: http://tukaani.org/xz/download git://ctrl.tukaani.org/xz.git License: liblzma: public domain xz, xzdec, lzmadec: public domain (LGPLv2.1+ under certain circumstances) lzdiff, other scripts: GPLv2+ build system: varies: public domain, GPLv2+, GPLv3+ Language: C, shell ======================================================================== Build instructions: unpack xz-5.0.3-2-mingw32-src.tar.lzma mgwport xz-5.0.3-1.mgwport all This will create: xz-5.0.3-2-mingw32-src.tar.lzma xz-5.0.3-2-mingw32-bin.tar.lzma xz-5.0.3-2-mingw32-lic.tar.lzma xz-5.0.3-2-mingw32-doc.tar.lzma xz-5.0.3-2-mingw32-src.tar.lzma liblzma-5.0.3-2-mingw32-dll-5.tar.lzma liblzma-5.0.3-2-mingw32-dev.tar.lzma See `mgwport --help' for other options. History: ======================================================================== 1. LZMA SDK First there was the LZMA SDK. Upstream, it shipped no libraries; only a few executables such as 'lzma'. The source code was provided for public use (under a variety of licenses), but it was expected that developers would incorporate the source code directly into their own projects. This is not The Unix Way. The LZMA SDK was tightly coupled with the 7zip compression program, and both were developed on and solely for the Windows platform. 7zip -- but not the LZMA SDK -- was ported to Unix under the auspices of the p7zip ("Portable 7zip") project. (As an aside, p7zip was then ported to cygwin...to come full circle). However, it should be clear that the file format used by 7zip (and p7zip) was completely different from the one supported by the LZMA SDK's 'lzma' tool. The latter used what was called the 'LZMA-Alone' format, which consisted of 13 bytes of header information followed by a raw lzma-compressed byte- stream. 7zip, on the other hand, used a much more complicated file format capable of hosting multiple files, spanned archives, and other features. The only similarity is that the core data compression algorithm used by both is LZMA. 2. LZMA Utils Eventually, a unix port of the LZMA SDK appeared, in the form of the LZMA Utils distribution, which reorganized the original source code, and provided the decompression code in library form (liblzmadec). It also provided a version of the 'lzma' program, but with a completely different command-line interface. The LZMA Utils version consciously mimicked the command-line options of the familiar gzip and bzip2 tools, while the original LZMA SDK version was...different. Very different. This is because the LZMA SDK's tool was originally intended just as a test and development utility, to help refine the algorithm. So, it has a number of 'compression guru' options that no sane user cares to use, and very few of the 'normal user' options that they would. LZMA Utils: (Lasse Collin) lzma -d foo.tar.lzma uncompress to (implied) foo.tar, and remove original compressed file. lzma foo.tar compress to (implied) foo.tar.lzma, and remove original uncompressed file. Supports familiar "tuning" options like -0 .. -9 Sends output data to stdout using -c Could be invoked under alternate names (symlinks) for different behavior: unlzma == lzma -d (uncompress) lzcat == lzma -dc (uncompress to stdout) LZMA SDK: (Igor Pavlov) lzma d foo.tar.lzma foo.tar lzma e foo.tar foo.tar.lzma mode d/e is the required first non-option argument both input and output files must be specified stdout? what's that? Finally, LZMA Utils also shipped a number of helpful scripts similar to the familiar ones from gzip and bzip2: lzdiff/lzcmp, lzgrep/lzegrep/lzfgrep, lzless/lzmore So, the LZMA SDK version was hardly suitable for replacing or augmenting the existing bzip2 and gzip compression programs on unix systems, expecially as the most common use was in conjuction with tar. But tar expects compression programs to satisfy a common command-line argument format, and to be able to manipulate data on standard streams. Most linux distributions have standardized on LZMA Utils. However, the .lzma file format (e.g. LZMA-Alone) is not sufficient for modern needs, as it (1) had no 'signature bytes' so compressed files were difficult to automatically detect and verify, (2) it had no provision for internal integrity checks, and (3) it could not support multi-file archives. 3. XZ Utils Approaching final non-beta release is the newest member of this family, the XZ Utils. Addressing the shortcomings of the LZMA-Alone file format, the xz file format and the (slightly modified) LZMA2 compression algorithm were jointly developed by Lasse Collin (LZMA Utils) and Igor Pavlov (LZMA SDK). The xz tool has all of the benefits of the LZMA Utils' version of the lzma tool, and ships with all of the same helpful scripts. In addition, it can be invoked as either 'xz' (or xzcat, unxz) or 'lzma' (or lzcat, unlzma) so you don't even need to retrain your fingers. You probably should, though, because .lzma files are already being replaced by .xz files on by many software distribution sites, including GNU ones. Finally, the XZ Utils also provides the liblzma decompression AND compression library, which supports both LZMA-Alone (that is, the old .lzma) format, and the new .xz format. The new .xz file format has an easily identifiable initial signature for automated format detection and verification. It supports integrity checks of several types including crypto- graphic hashes. Finally, the format also supports multiple compressed streams within the same file (that is, multi-file archives). However, the xz tool does NOT, at present, support multi-file archives; only archives with a single compressed stream. As an aside, eventually the 7zip (and p7zip) utilities will support a "new" .7z format -- which will be simply a compatible variant of the .xz file format, but with custom filters (codecs) specified in the (highly extensible) header defined by the .xz standard. This was the primary reason for the new .xz format to support multi-file archives; because the xz tool has no present need for them, and doesn't even support them (although the liblzma library does). Single File Compression ============================================================== Although the xz file format supports multiple streams, the xz tool itself is concerned only with single files that have been compressed as a single complete stream using LZMA compression. This is similar to the behavior of the older lzma tool and its LZMA-Alone file format, or the archetypal gzip and bzip2 compression programs. Just as with bzip2 and gzip (and the old lzma tool), to create multi-file archives you should use tar and THEN compress with xz.exe. For an integrated compressed archive file format that uses LZMA compression, see p7zip and the 7zip programs, and their associated .7z file format. ======================================================================== Test suite results This section of this document is updated with each new release. No history is maintained here. PASS: test_check.exe PASS: test_stream_flags.exe PASS: test_filter_flags.exe PASS: test_block_header.exe PASS: test_index.exe PASS: test_files.sh test_compress.sh: generated_abc............. generated_random............. generated_text............. prepared_bcj_sparc............. prepared_bcj_x86............. PASS: test_compress.sh ================== All 7 tests passed ================== ======================================================================== Port Notes: ---------- xz-5.0.3-2 -- 2011 Sep 19 ----------- * Rebuild with gcc-4.6.1 ---------- xz-5.0.3-1 -- 2011 Sep 02 ----------- unreleased ---------- * Update to latest upstream release, non-beta! + Bumps DLL number to "5" * Adapt build system to use mgwport framework ---------- xz-4.999.9beta_20100401-1 -- 2010 Apr 09 ----------- * Update to 2010-Apr-01 git snapshot Wed Mar 31 16:47:25 2010 +0300 a1f7a986b8d708f9290da9799ca1b8d7082fad3e ---------- xz-4.999.9beta_20091209-3 -- 2009 Dec 21 ----------- * Update to latest upstream git snapshot b56cb1fc31fa2381f92eefc040df85667048d626 2009-12-09T18:13:44+0200 * Various upstream fixes * No longer require am-1.11; other packaging changes to ease cross builds. ---------- xz-4.999.9beta-1 -- 2009 Aug 30 ----------- * Update to latest upstream release * Use (new) upstream xz.1 in preference to custom attempt at a man page. * Upstream: - Lots of documentation updates - Fixes data corruption error - C++ compatiblity fixes - New lzmainfo utility - Fixes to helper scripts (xzdiff, xzless, etc) - Other miscellaneous bug fixes and build improvements - Distribute a changelog derived from git log. ---------- xz-4.999.8beta_20090725git-1 -- 2009 Jul 25 ----------- * First release of either xz OR lzma for mingw by the MinGW team. Based on a git snapshot because Lasse Collin says: "snapshot of the code in the git repository is better than the latest beta release", which is certainly true for mingw, as only recently have a number of win32 fixes and improvements been implemented. Snapshot is git master at 2009-07-24T13:15:06+0300 adbad2d16cb5909f85d4a429011005613ea62ffe * Includes patches to support automake1.11 and "silent rules". * Fix installation issue with missing .exe extensions. * Bump the DLL number to "1" (for consistency with cygwin). No worries: when xz-5.0.0 the DLL number (and unix SONAME) will be artificially incremented to "5").
Source: xz-5.0.3-2.README.txt, updated 2011-10-13

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