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2020-02-07Build: Add support for translated man pages using po4a.Lasse Collin1-14/+36
The dependency on po4a is optional. It's never required to install the translated man pages when xz is built from a release tarball. If po4a is missing when building from xz.git, the translated man pages won't be generated but otherwise the build will work normally. The translations are only updated automatically by autogen.sh and by "make mydist". This makes it easy to keep po4a as an optional dependency and ensures that I won't forget to put updated translations to a release tarball. The translated man pages aren't installed if --disable-nls is used. The installation of translated man pages abuses Automake internals by calling "install-man" with redefined dist_man_MANS and man_MANS. This makes the hairy script code slightly less hairy. If it breaks some day, this code needs to be fixed; don't blame Automake developers. Also, this adds more quotes to the existing shell script code in the Makefile.am "-hook"s.
2016-04-10Build: Fix = to += for xz_SOURCES in src/xz/Makefile.am.Lasse Collin1-1/+1
Thanks to Christian Kujau.
2015-11-03xz: Make xz buildable even when encoders or decoders are disabled.Lasse Collin1-2/+6
The patch is quite long but it's mostly about adding new #ifdefs to omit code when encoders or decoders have been disabled. This adds two new #defines to config.h: HAVE_ENCODERS and HAVE_DECODERS.
2015-03-31xz: Add support for sandboxing with Capsicum.Lasse Collin1-1/+1
The sandboxing is used conditionally as described in main.c. This isn't optimal but it was much easier to implement than a full sandboxing solution and it still covers the most common use cases where xz is writing to standard output. This should have practically no effect on performance even with small files as fork() isn't needed. C and locale libraries can open files as needed. This has been fine in the past, but it's a problem with things like Capsicum. io_sandbox_enter() tries to ensure that various locale-related files have been loaded before cap_enter() is called, but it's possible that there are other similar problems which haven't been seen yet. Currently Capsicum is available on FreeBSD 10 and later and there is a port to Linux too. Thanks to Loganaden Velvindron for help.
2014-10-29Build: Prepare to support Automake's subdir-objects.Lasse Collin1-5/+5
Due to a bug in Automake, subdir-objects won't be enabled for now. http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17354 Thanks to Daniel Richard G. for the original patches.
2014-06-18xz: Use lzma_cputhreads() instead of own copy of tuklib_cpucores().Lasse Collin1-1/+0
2013-07-04xz: Move some of the timing code into mytime.[hc].Lasse Collin1-0/+2
This switches units from microseconds to milliseconds. New clock_gettime(CLOCK_MONOTONIC) will be used if available. There is still a fallback to gettimeofday().
2010-10-08Build: Add options to disable individual command line tools.Lasse Collin1-1/+5
2010-10-05Build: Remove the static/dynamic tricks.Lasse Collin1-3/+1
Most distros want xz linked against shared liblzma, so it doesn't help much to require --enable-dynamic for that. Those who want to avoid PIC on x86-32 to get better performance, can still do it e.g. by using --disable-shared to compile xz and then another pass to compile shared liblzma. Part of these static/dynamic tricks were needed for Windows in the past. Nowadays we rely on GCC and binutils to do the right thing with auto-import. If the Autotooled build system needs to support some other toolchain on Windows in the future, this may need some rethinking.
2010-09-10xz: Multiple fixes.Lasse Collin1-1/+3
The code assumed that printing numbers with thousand separators and decimal points would always produce only US-ASCII characters. This was used for buffer sizes (with snprintf(), no overflows) and aligning columns of the progress indicator and --list. That assumption was wrong (e.g. LC_ALL=fi_FI.UTF-8 with glibc), so multibyte character support was added in this commit. The old way is used if the operating system doesn't have enough multibyte support (e.g. lacks wcwidth()). The sizes of buffers were increased to accomodate multibyte characters. I don't know how big they should be exactly, but they aren't used for anything critical, so it's not too bad. If they still aren't big enough, I hopefully get a bug report. snprintf() takes care of avoiding buffer overflows. Some static buffers were replaced with buffers allocated on stack. double_to_str() was removed. uint64_to_str() and uint64_to_nicestr() now share the static buffer and test for thousand separator support. Integrity check names "None" and "Unknown-N" (2 <= N <= 15) were marked to be translated. I had forgot these, plus they wouldn't have worked correctly anyway before this commit, because printing tables with multibyte strings didn't work. Thanks to Marek Černocký for reporting the bug about misaligned table columns in --list output.
2010-01-29Add list.h to src/xz/Makefile.am.Lasse Collin1-0/+1
This should have been already in 0bc9eab243dee3be764b3530433a7fcdc3f7c6a1.
2010-01-24Add initial version of xz --list.Lasse Collin1-0/+1
This is a bit rough but should be useful for basic things. Ideas (with detailed examples) about the output format are welcome. The output of --robot --list is not necessarily stable yet, although I don't currently have any plans about changing it. The man page hasn't been updated yet.
2009-11-15Add lzma_physmem().Lasse Collin1-1/+0
I had hoped to keep liblzma as purely a compression library as possible (e.g. file I/O will go into a different library), but it seems that applications linking agaisnt liblzma need some way to determine the memory usage limit, and knowing the amount of RAM is one reasonable way to help making such decisions. Thanks to Jonathan Nieder for the original patch.
2009-09-19Various changes.Lasse Collin1-1/+6
Separate a few reusable components from XZ Utils specific code. The reusable code is now in "tuklib" modules. A few more could be separated still, e.g. bswap.h. Fix some bugs in lzmainfo. Fix physmem and cpucores code on OS/2. Thanks to Elbert Pol for help. Add OpenVMS support into physmem. Add a few #ifdefs to ease building XZ Utils on OpenVMS. Thanks to Jouk Jansen for the original patch.
2009-09-11Use $(LN_EXEEXT) in symlinks to executables.Lasse Collin1-2/+2
This fixes "make install" on operating systems using a suffix for executables. Cygwin is treated specially. The symlink names won't have .exe suffix even though the executables themselves have. Thanks to Charles Wilson.
2009-08-13Fix xz Makefile.am for the man page.Lasse Collin1-0/+2
install-exec-hook -> install-data-hook
2009-08-10Added a rough version of the xz man page.Lasse Collin1-0/+15
2009-07-06Use sed instead of $(SED) so that we don't need toLasse Collin1-3/+3
use AC_PROG_SED. We don't do anything fancy with sed, so this should work OK. libtool 2.2 sets SED but 1.5 doesn't, so $(SED) happened to work when using libtool 2.2.
2009-06-30Build system fixesLasse Collin1-1/+10
Don't use libtool convenience libraries to avoid recently discovered long-standing subtle but somewhat severe bugs in libtool (at least 1.5.22 and 2.2.6 are affected). It was found when porting XZ Utils to Windows <http://lists.gnu.org/archive/html/libtool/2009-06/msg00070.html> but the problem is significant also e.g. on GNU/Linux. Unless --disable-shared is passed to configure, static library built from a set of convenience libraries will contain PIC objects. That is, while libtool builds non-PIC objects too, only PIC objects will be used from the convenience libraries. On 32-bit x86 (tested on mobile XP2400+), using PIC instead of non-PIC makes the decompressor 10 % slower with the default CFLAGS. So while xz was linked against static liblzma by default, it got the slower PIC objects unless --disable-shared was used. I tend develop and benchmark with --disable-shared due to faster build time, so I hadn't noticed the problem in benchmarks earlier. This commit also adds support for building Windows resources into liblzma and executables.
2009-06-27Added missing $(EXEEXT).Lasse Collin1-1/+1
2009-06-27Create correct symlinks even whenLasse Collin1-8/+13
--program-{prefix,suffix,transform} is passed to configure.
2009-06-26Rename process.[hc] to coder.[hc] and io.[hc] to file_io.[hc]Lasse Collin1-4/+4
to avoid problems on systems with system headers with those names.
2009-06-26Fix @variables@ to $(variables) in Makefile.am files.Lasse Collin1-10/+11
Fix the ordering of libgnu.a and LTLIBINTL on the linker command line and added missing LTLIBINTL to tests/Makefile.am.
2009-04-13Put the interesting parts of XZ Utils into the public domain.Lasse Collin1-10/+3
Some minor documentation cleanups were made at the same time.
2009-02-07Make it easy to choose if command line tools should beLasse Collin1-5/+3
linked statically or dynamically against liblzma. The default is still to use static liblzma, but it can now be changed by passing --enable-dynamic to configure. Thanks to Mike Frysinger for the original patch. Fixed a few minor bugs in configure.ac.
2009-02-05Various code cleanups the the xz command line tool.Lasse Collin1-0/+2
It now builds with MinGW.
2008-12-31Remove lzma_init() and other init functions from liblzma API.Lasse Collin1-4/+1
Half of developers were already forgetting to use these functions, which could have caused total breakage in some future liblzma version or even now if --enable-small was used. Now liblzma uses pthread_once() to do the initializations unless it has been built with --disable-threads which make these initializations thread-unsafe. When --enable-small isn't used, liblzma currently gets needlessly linked against libpthread (on systems that have it). While it is stupid for now, liblzma will need threads in future anyway, so this stupidity will be temporary only. When --enable-small is used, different code CRC32 and CRC64 is now used than without --enable-small. This made the resulting binary slightly smaller, but the main reason was to clean it up and to handle the lack of lzma_init_check(). The pkg-config file lzma.pc was renamed to liblzma.pc. I'm not sure if it works correctly and portably for static linking (Libs.private includes -pthread or other operating system specific flags). Hopefully someone complains if it is bad. lzma_rc_prices[] is now included as a precomputed array even with --enable-small. It's just 128 bytes now that it uses uint8_t instead of uint32_t. Smaller array seemed to be at least as fast as the more bloated uint32_t array on x86; hopefully it's not bad on other architectures.
2008-11-19Renamed lzma to xz and lzmadec to xzdec. We create symlinksLasse Collin1-0/+74
lzma, unlzma, and lzcat in "make install" for backwards compatibility with LZMA Utils 4.32.x; I'm not sure if this should be the default though.
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