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Author SHA1 Message Date
Lasse Collin
b13a781833 Build: Replace obsolete AC_HELP_STRING with AS_HELP_STRING. 2014-11-17 18:52:21 +02:00
Lasse Collin
542cac122e Build: Fix Autoconf warnings about escaped backquotes.
Thanks to Daniel Richard G. for pointing out that it's
good to sometimes run autoreconf -fi with -Wall.
2014-11-17 18:43:19 +02:00
Lasse Collin
c923b140b2 Build: Prepare to support Automake's subdir-objects.
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.
2014-10-29 21:15:35 +02:00
Lasse Collin
c4911f2db3 Build: Detect supported compiler warning flags better.
Clang and nowadays also GCC accept any -Wfoobar option
but then may give a warning that an unknown warning option
was specified. To avoid adding unsupported warning options,
the options are now tested with -Werror.

Thanks to Charles Diza.
2014-09-25 18:38:48 +03:00
Lasse Collin
e1c8f1d01f liblzma: Add lzma_memcmplen() for fast memory comparison.
This commit just adds the function. Its uses will be in
separate commits.

This hasn't been tested much yet and it's perhaps a bit early
to commit it but if there are bugs they should get found quite
quickly.

Thanks to Jun I Jin from Intel for help and for pointing out
that string comparison needs to be optimized in liblzma.
2014-07-25 20:57:20 +03:00
Lasse Collin
56056571df Build: Add --disable-doc to configure. 2014-04-25 17:44:26 +03:00
Lasse Collin
6b44b4a775 Add native threading support on Windows.
Now liblzma only uses "mythread" functions and types
which are defined in mythread.h matching the desired
threading method.

Before Windows Vista, there is no direct equivalent to
pthread condition variables. Since this package doesn't
use pthread_cond_broadcast(), pre-Vista threading can
still be kept quite simple. The pre-Vista code doesn't
use anything that wasn't already available in Windows 95,
so the binaries should run even on Windows 95 if someone
happens to care.
2013-09-17 11:52:28 +03:00
Lasse Collin
ae0ab74a88 Build: Remove a comment about Automake 1.10 from configure.ac.
The previous commit supports silent rules and that requires
Automake 1.11.
2013-09-11 14:40:35 +03:00
Lasse Collin
72975df6c8 Build: Create liblzma.pc in a src/liblzma/Makefile.am.
Previously it was done in configure, but doing that goes
against the Autoconf manual. Autoconf requires that it is
possible to override e.g. prefix after running configure
and that doesn't work correctly if liblzma.pc is created
by configure.

A potential downside of this change is that now e.g.
libdir in liblzma.pc is a standalone string instead of
being defined via ${prefix}, so if one overrides prefix
when running pkg-config the libdir won't get the new value.
I don't know if this matters in practice.

Thanks to Vincent Torri.
2013-09-09 20:37:03 +03:00
Lasse Collin
3e2b198ba3 Build: Fix the detection of missing CRC32.
Thanks to Vincent Torri.
2013-07-15 14:08:02 +03:00
Lasse Collin
9376f5f8f7 Build: Require Automake 1.12 and use serial-tests option.
It should actually still work with Automake 1.10 if
the serial-tests option is removed. Automake 1.13 started
using parallel tests by default and the option to get
the old behavior isn't supported before 1.12.

At least for now, parallel tests don't improve anything
in XZ Utils but they hide the progress output from
test_compress.sh.
2013-06-26 12:17:00 +03:00
Lasse Collin
97379c5ea7 Build: Use -Wvla with GCC if supported.
Variable-length arrays are mandatory in C99 but optional in C11.
The code doesn't currently use any VLAs and it shouldn't in the
future either to stay compatible with C11 without requiring any
optional C11 features.
2013-04-27 22:07:46 +03:00
Lasse Collin
ab22562066 A few typo fixes to comments and the xz man page.
Thanks to Jim Meyering.
2012-08-24 16:27:31 +03:00
Lasse Collin
d8eaf9d827 Build: Bump gettext version requirement to 0.18.
Otherwise too old version of m4/lib-link.m4 gets included
when autoreconf -fi is run.
2012-08-02 17:13:30 +03:00
Lasse Collin
df11317985 Build: Add a comment to configure.ac about symbol versioning. 2012-07-04 17:11:31 +03:00
Lasse Collin
2dcea03712 Fix compiling with IBM XL C on AIX. 2012-02-22 12:00:16 +02:00
Lasse Collin
e9ed88126e Run the scripts with the correct shell in test_scripts.sh.
The scripts are now made executable in the build tree.
This way the scripts can be run like programs in
test_scripts.sh. Previously test_scripts.sh always
used sh but it's not correct if @POSIX_SHELL@ is set
to something else by configure.

Thanks to Jonathan Nieder for the patch.
2011-08-06 20:37:28 +03:00
Lasse Collin
492c863455 Build: Make configure print if symbol versioning is enabled or not. 2011-05-28 19:24:56 +03:00
Lasse Collin
bd35d903a0 liblzma: Use symbol versioning.
Symbol versioning is enabled by default on GNU/Linux,
other GNU-based systems, and FreeBSD.

I'm not sure how stable this is, so it may need
backward-incompatible changes before the next release.

The idea is that alpha and beta symbols are considered
unstable and require recompiling the applications that
use those symbols. Once a symbol is stable, it may get
extended with new features in ways that don't break
compatibility with older ABI & API.

The mydist target runs validate_map.sh which should
catch some probable problems in liblzma.map. Otherwise
I would forget to update the map file for new releases.
2011-05-28 15:55:39 +03:00
Lasse Collin
fe00f95828 Build: Fix checking for system-provided SHA-256. 2011-05-24 00:23:46 +03:00
Lasse Collin
b94aa0c838 liblzma: Try to use SHA-256 from the operating system.
If the operating system libc or other base libraries
provide SHA-256, use that instead of our own copy.
Note that this doesn't use OpenSSL or libgcrypt or
such libraries to avoid creating dependencies to
other packages.

This supports at least FreeBSD, NetBSD, OpenBSD, Solaris,
MINIX, and Darwin. They all provide similar but not
identical SHA-256 APIs; everyone is a little different.

Thanks to Wim Lewis for the original patch, improvements,
and testing.
2011-05-21 15:08:44 +03:00
Lasse Collin
ec7106309c Build: Fix initialization of enable_check_* variables in configure.ac.
This doesn't matter much in practice since it is unlikely
that anyone would have such environment variable names.

Thanks to Wim Lewis.
2011-05-17 12:01:37 +03:00
Lasse Collin
0b77c4a751 Build: Warn if no supported method to detect the number of CPU cores. 2011-04-19 10:44:48 +03:00
Lasse Collin
9c1b05828a Fix portability problems in mythread.h.
Use gettimeofday() if clock_gettime() isn't available
(e.g. Darwin).

The test for availability of pthread_condattr_setclock()
and CLOCK_MONOTONIC was incorrect. Instead of fixing the
#ifdefs, use an Autoconf test. That way if there exists a
system that supports them but doesn't specify the matching
POSIX #defines, the features will still get detected.

Don't try to use pthread_sigmask() on OpenVMS. It doesn't
have that function.

Guard mythread.h against being #included multiple times.
2011-04-19 09:20:44 +03:00
Lasse Collin
de678e0c92 liblzma: Add lzma_stream_encoder_mt() for threaded compression.
This is the simplest method to do threading, which splits
the uncompressed data into blocks and compresses them
independently from each other. There's room for improvement
especially to reduce the memory usage, but nevertheless,
this is a good start.
2011-04-11 22:03:30 +03:00
Lasse Collin
9f0a806aef Revise mythread.h.
This adds:

  - mythread_sync() macro to create synchronized blocks

  - mythread_cond structure and related functions
    and macros for condition variables with timed
    waiting using a relative timeout

  - mythread_create() to create a thread with all
    signals blocked

Some of these wouldn't need to be inline functions,
but I'll keep them this way for now for simplicity.

For timed waiting on a condition variable, librt is
now required on some systems to use clock_gettime().
configure.ac was updated to handle this.
2011-04-10 21:23:21 +03:00
Lasse Collin
db33117cc8 Build: Upgrade m4/acx_pthread.m4 to the latest version.
It was renamed to ax_pthread.m4 in Autoconf Archive.
2011-04-05 17:12:20 +03:00
Lasse Collin
1039bfcfc0 xz: Use posix_fadvise() if it is available. 2011-04-05 15:27:26 +03:00
Lasse Collin
9311774c49 Build: Enable ASM on DJGPP by default. 2010-12-12 21:23:55 +02:00
Lasse Collin
084c60d318 configure.ac: Remove two unused defines. 2010-10-08 15:59:25 +03:00
Lasse Collin
b1c7368f95 Build: Add options to disable individual command line tools. 2010-10-08 15:25:45 +03:00
Lasse Collin
f9907503f8 Build: Remove the static/dynamic tricks.
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.
2010-10-05 14:13:16 +03:00
Lasse Collin
fda4724d81 configure.ac: Silence a warning from Autoconf 2.68. 2010-10-05 12:18:58 +03:00
Lasse Collin
17d3c61edd Move version.sh to build-aux. 2010-09-28 10:59:53 +03:00
Lasse Collin
bb0b1004f8 xz: Multiple fixes.
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.
2010-09-10 10:30:33 +03:00
Lasse Collin
d8a55c48b3 Remove the Subblock filter code for now.
The spec isn't finished and the code didn't compile anymore.
It won't be included in XZ Utils 5.0.0. It's easy to get it
back once the spec is done.
2010-05-26 09:55:47 +03:00
Lasse Collin
9886d436ff Change the default of --enable-assume-ram from 32 to 128 MiB.
This is to allow files created with "xz -9" to be decompressed
if the amount of RAM cannot be determined.
2010-03-07 13:34:34 +02:00
Lasse Collin
eb7d51a3fa Collection of language fixes to comments and docs.
Thanks to Jonathan Nieder.
2010-02-12 13:16:15 +02:00
Lasse Collin
b063cc34a3 Use PACKAGE_URL instead of custom PACKAGE_HOMEPAGE. 2010-01-27 13:31:03 +02:00
Lasse Collin
b9b5c54cd4 Enable assembler code only if it is known to work
on that operating system.

I'm too lazy to think how to make a good Autoconf test
for this and it's not that important anyway.

No longer define HAVE_ASM_X86 or HAVE_ASM_X86_64.
Inline assembler (if any) is used if a macro like
__i386__ or __x86_64__ is defined.
2009-11-22 12:00:30 +02:00
Lasse Collin
c74c132f7f Update tuklib_cpucores.m4 and tuklib_physmem.m4 from tuklib,
which now use AC_CACHE_CHECK. Using the cache variable,
configure now warns if there is no method to detect the amount
of RAM and recommends using --enable-assume-ram.
2009-11-20 12:51:19 +02:00
Lasse Collin
ebfb2c5e1f Use a tuklib module for integer handling.
This replaces bswap.h and integer.h.

The tuklib module uses <byteswap.h> on GNU,
<sys/endian.h> on *BSDs and <sys/byteorder.h>
on Solaris, which may contain optimized code
like inline assembly.
2009-10-04 22:57:12 +03:00
Lasse Collin
29fd321033 Add support for --enable-assume-ram=SIZE. 2009-10-02 14:35:56 +03:00
Lasse Collin
e599bba421 Various changes.
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.
2009-09-19 09:47:30 +03:00
Lasse Collin
221be761f4 Use $(LN_EXEEXT) in symlinks to executables.
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.
2009-09-11 10:24:09 +03:00
Lasse Collin
696d7ee395 Require GNU libtool 2.2. 2009-08-27 15:43:54 +03:00
Lasse Collin
71f18e8a06 Make --enable-dynamic a tristate option.
Some programs will by default be linked against static
liblzma and some against shared liblzma. --enable-dynamic
now allows overriding the default to both directions
(all dynamic or all static) even when building both
shared and static liblzma.

This is quite messy compared to how simple thing it is supposed
to be. The complexity is mostly due to Windows support.
2009-08-13 15:00:21 +03:00
Lasse Collin
e51b4e49e8 Add lzmainfo for backward compatibility with LZMA Utils.
lzmainfo now links against static liblzma. In contrast
to other command line tools in XZ Utils, linking lzmainfo
against static liblzma by default is dumb. This will be
fixed once I have fixed some related issues in configure.ac.
2009-08-13 12:55:45 +03:00
Lasse Collin
4c9c989d45 Use AC_CONFIG_AUX_DIR to clean up the toplevel directory
a little.

Fixed a related bug in the toplevel Makefile.am.

Added the build-aux directory to .gitignore.
2009-07-18 18:54:55 +03:00
Lasse Collin
96e4b257e1 Major update to the xzgrep and other scripts based on
the latest versions found from gzip CVS repository.

configure will try to find a POSIX shell to be used by
the scripts. This should ease portability on systems
which have pre-POSIX /bin/sh.

xzgrep and xzdiff support .xz, .lzma, .gz, and .bz2 files.
xzmore and xzless support only .xz and .lzma files.

The name of the xz executable used in these scripts is
now correct even if --program-transform-name has been used.
2009-07-05 22:25:17 +03:00