Message-Id: <201412231758.sBNHwSdk025849@delorie.com> Date: Tue, 23 Dec 2014 13:42:56 +0100 From: Juan Manuel Guerrero To: djgpp-announce AT delorie DOT com Subject: ANNOUNCE: DJGPP port of XZ utils 5.0.7 uploaded. Content-Type: text/plain; charset=ISO-8859-15; format=flowed Reply-To: djgpp AT delorie DOT com This is a port of XZ utils 5.0.7 to MSDOS/DJGPP. XZ utils provide a general-purpose data compression library and command line tools. The native file format is the .xz format, but also the legacy .lzma format is supported. The .xz format supports multiple compression algorithms, which are called "filters" in context of XZ Utils. The primary filter is currently LZMA2. With typical files, XZ utils create about 30 % smaller files than gzip. To ease adapting support for the .xz format into existing applications and scripts, the API of liblzma is somewhat similar to the API of the popular zlib library. For the same reason, the command line tool xz has similar command line syntax than that of gzip. DJGPP specific changes. ======================= The sources do not compile with djdev203 because inttypes.h and snprintf are missed. This port uses the CVS repository version of snprintf. The required definition for PRIx32 and PRIx64 have been taken from the CVS repository version of inttypes.h. The library code itself has not been changed. The code has already enough DJGPP support. But the driver program has no SFN support at all. It simply appends a ".xz" or ".lzma" extension to the original file name according to the compression algorithm used. This will work on systems with LFN support but not on plain DOS. I have applied the same schema that I have used for the BZIP2 port. Unfortunately the original file name is not stored in the compressed file header so there will be no way to restore the original file name extension on SFN systems. The program will try to preserve as much characters as possible from the extension. For SFN systems the following rules apply for ".xz" extension: compressed name uncompressed name filename.exx --> filename.ex filename.exz --> filename.e filename.xz --> filename uncompressed name compressed name filename.ext --> filename.exx filename.ex --> filename.exx filename.e --> filename.exz filename --> filename.xz For SFN systems the following rules apply for ".lzma" extension: compressed name uncompressed name filename.exl --> filename.ex filename.elz --> filename.e filename.lzm --> filename uncompressed name compressed name filename.ext --> filename.exl filename.ex --> filename.exl filename.e --> filename.elz filename --> filename.lzm The port will detect at run time if LFN support is available or not and will select the method to handle the extension creation accordingly. For LFN and SFN systems, ".txz" and ".tlz" extensions are always identified as tar files. Their file name will always get a ".tar" extension. On LFN systems the port will behave as the original concerning the generation of the extension. To compile the sources and run the test suite you will need LFN support. The port has been configured and compiled on WinXP SP3. There is no guarantee that this may be possible with any other DOS-like OS. Due to the massive use of long file names it will not be possible to configure and compile without LFN support. The source package is now distributed configured for both DJGPP 2.03 and DJGPP 2.04. In the top srcdir there is a "_build.203" directory and a "_build.204" directory. If for some reason you need to reconfigure the sources delete the complete contain of the _build.20[3|4] directory and run the following command: ..\djgpp\config.bat ./.. The DJGPP 2.03 version of the port has been compiled using gcc473 and bnu224br2. The DJGPP 2.04 version of the port has been compiled using gcc492 and bnu224br2. Building with stock djdev204 is no longer supported due to bugs in different LFN functions that makes the port useless on plain DOS together with LFN drivers that do not implement the full set of 0x71NN functions. Instead of using the libc.a provided djdev204, a libc version compiled from the repository code has been used. The repository code has been patched with the memory patch as provided by Andris Pavenis in: http://ap1.pp.fi/djgpp/djdev/djgpp/20140421/use_nmalloc.diff The goal is to test how well the new memory system and the current libc code works. The repository code can be downloaded from Martin Stromberg's site as: http://www.ludd.luth.se/~ams/djgpp/cvs/djgpp.cvs.tar.gz This port provides no NLS support for the version compiled with djdev203. It has been configured with NLS support disabled by passing the no-nls flag as argument to config.bat. If you prefer NLS support you will have to reconfigure the sources omitting the no-nls flag when calling config.bat. This port provides NLS support for the version compiled with DJGPP 2.04. It has been configured with NLS support enabled. If you prefer no NLS, then reconfigure the sources passing the no-nls flag to the config.bat file. The port has been configured and compiled with NLS support enabled using the latest ports of libiconv and gettext: ftp://ftp.delorie.com/pub/djgpp/beta/v2gnu/licv114br2.zip ftp://ftp.delorie.com/pub/djgpp/beta/v2gnu/gtxt192b.zip These are DXE3 modules and _MUST_ be installed or the program will abort every time it is started. As usual, all djgpp specific files (config.bat, diffs, readme files, etc.) are located in the /djgpp directory. Please read the docs to become familiar with the products. This is an verbatim extract of the NEWS file: ------------------------------------------------------------------------------- 5.0.7 (2014-09-20) * Fix regressions introduced in 5.0.6: - Fix building with non-GNU make. - Fix invalid Libs.private value in liblzma.pc which broke static linking against liblzma if the linker flags were taken from pkg-config. 5.0.6 (2014-09-14) * xzgrep now exits with status 0 if at least one file matched. * A few minor portability and build system fixes ------------------------------------------------------------------------------- The port has been compiled using stock djdev203 (patchlevel 2) and consists of the four packages that can be downloaded from ftp.delorie.com and mirrors as (time stamp 2014-12-22): XZ utils 5.0.7 binaries, scripts and man format documentation: ftp://ftp.delorie.com/pub/djgpp/current/v2apps/xz-507b.zip XZ utils 5.0.7 lzma library and headers: ftp://ftp.delorie.com/pub/djgpp/current/v2apps/xz-507a.zip XZ utils 5.0.7 pdf format documentation: ftp://ftp.delorie.com/pub/djgpp/current/v2apps/xz-507d.zip XZ utils 5.0.7 source: ftp://ftp.delorie.com/pub/djgpp/current/v2apps/xz-507s.zip The binaries and library have been produced a second time using a libc.a version compiled from current repository code and patched with the new malloc code. This package is available at ftp.delorie.com and mirrors as (time stamp 2014-12-22): XZ utils 5.0.7 binaries, scripts and man format documentation: ftp://ftp.delorie.com/pub/djgpp/beta/v2apps/xz-507b.zip XZ utils 5.0.7 lzma library and headers: ftp://ftp.delorie.com/pub/djgpp/beta/v2apps/xz-507a.zip Send XZ utils specific bug reports to . Send suggestions and bug reports concerning the DJGPP port to comp.os.msdos.djgpp or . Enjoy. Guerrero, Juan Manuel