Commit Graph

107 Commits

Author SHA1 Message Date
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
Lasse Collin 0a289c01ac Define PACKAGE_HOMEPAGE in configure.ac and use it in
xz and xzdec.

Use also PACKAGE_NAME instead of hardcoding "XZ Utils".
2009-07-02 14:30:38 +03:00
Lasse Collin 5cc99db5ba Avoid visibility related compiler warnings on Windows. 2009-07-01 12:21:24 +03:00
Lasse Collin f42ee98166 Build system fixes
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.
2009-06-30 17:09:57 +03:00
Lasse Collin 390a640856 Basic support for building with Cygwin and MinGW using
the Autotools based build system. It's not good yet, more
fixes will follow.
2009-06-26 15:37:53 +03:00
Lasse Collin a6f43e6412 Use a GCC-specific #pragma instead of GCC-specific
-Wno-uninitialized to silence a bogus warning.
2009-05-02 16:16:28 +03:00
Lasse Collin f6ce63ebdb Removed --disable-encoder and --disable-decoder. Use the values
given to --enable-encoders and --enable-decoders to determine
if any encoder or decoder support is wanted.
2009-05-02 14:46:50 +03:00
Lasse Collin 02ddf09bc3 Put the interesting parts of XZ Utils into the public domain.
Some minor documentation cleanups were made at the same time.
2009-04-13 11:27:40 +03:00
Lasse Collin cf751edfde Added AC_CONFIG_MACRO_DIR to configure.ac. 2009-03-01 09:00:06 +02:00
Lasse Collin 3084d662d2 Cleanups to the code that detects the amount of RAM and
the number of CPU cores. Added support for using sysinfo()
on Linux systems whose libc lacks appropriate sysconf()
support (at least dietlibc). The Autoconf macros were
split into separate files, and CPU core count detection
was moved from hardware.c to cpucores.h. The core count
isn't used for anything real for now, so a problematic
part in process.c was commented out.
2009-02-14 00:45:29 +02:00
Lasse Collin fdbc0cfa71 Changed how the version number is specified in various places.
Now configure.ac will get the version number directly from
src/liblzma/api/lzma/version.h. The intent is to reduce the
number of places where the version number is duplicated. In
future, support for displaying Git commit ID may be added too.
2009-02-13 18:00:03 +02:00
Lasse Collin a3bbbe05d3 Let the user specify custom CFLAGS on the make command
line. Previously custom CFLAGS worked only when they were
passed to configure.
2009-02-09 14:54:31 +02:00
Lasse Collin 880c330938 Make it easy to choose if command line tools should be
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.
2009-02-07 21:17:07 +02:00
Lasse Collin 99c1c2abfa Updated the x86 assembler code:
- Use call/ret pair to get instruction pointer for PIC.
  - Use PIC only if PIC or __PIC__ is #defined.
  - The code should work on MinGW and Darwin in addition
    to GNU/Linux and Solaris.
2009-02-02 21:19:01 +02:00
Lasse Collin 4fd43cb3a9 Bumped version to 4.999.8beta right after the release
of 4.999.7beta.
2008-12-31 20:01:00 +02:00
Lasse Collin 9c45658ddc Disable both Subblock encoder and decoder my default,
since they are not finished and may have security issues too.
2008-12-31 17:44:20 +02:00
Lasse Collin d1d17a40d3 Prepare for 4.999.7beta release. 2008-12-31 17:41:46 +02:00
Lasse Collin 7eea8bec3a Fixed missing quoting in configure.ac. 2008-12-31 00:57:27 +02:00
Lasse Collin 7ed9d943b3 Remove lzma_init() and other init functions from liblzma API.
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.
2008-12-31 00:30:49 +02:00
Lasse Collin 1ceebcf7e1 Name the package "xz" in configure.ac. 2008-12-13 00:54:11 +02:00
Lasse Collin a94bf00d0a Some adjustments to GCC warning flags. The important change
is the removal of -pedantic. It messes up -Werror (which I
really want to keep so that I don't miss any warnings) with
printf format strings that are in POSIX but not in C99.
2008-12-12 22:43:21 +02:00
Lasse Collin 54f716ba89 Added missing check for uint16_t. 2008-11-19 23:55:22 +02:00
Lasse Collin 1880a3927b Renamed lzma to xz and lzmadec to xzdec. We create symlinks
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.
2008-11-19 23:52:24 +02:00
Lasse Collin e114502b2b Oh well, big messy commit again. Some highlights:
- Updated to the latest, probably final file format version.
  - Command line tool reworked to not use threads anymore.
    Threading will probably go into liblzma anyway.
  - Memory usage limit is now about 30 % for uncompression
    and about 90 % for compression.
  - Progress indicator with --verbose
  - Simplified --help and full --long-help
  - Upgraded to the last LGPLv2.1+ getopt_long from gnulib.
  - Some bug fixes
2008-11-19 20:46:52 +02:00
Lasse Collin 1dcecfb09b Some API changes, bug fixes, cleanups etc. 2008-09-27 19:09:21 +03:00
Lasse Collin 9373e81e18 Bumped version to 4.999.6alpha. 2008-09-10 19:16:32 +03:00
Lasse Collin 3b34851de1 Sort of garbage collection commit. :-| Many things are still
broken. API has changed a lot and it will still change a
little more here and there. The command line tool doesn't
have all the required changes to reflect the API changes, so
it's easy to get "internal error" or trigger assertions.
2008-08-28 22:53:15 +03:00
Lasse Collin 7d17818cec Update the code to mostly match the new simpler file format
specification. Simplify things by removing most of the
support for known uncompressed size in most places.
There are some miscellaneous changes here and there too.

The API of liblzma has got many changes and still some
more will be done soon. While most of the code has been
updated, some things are not fixed (the command line tool
will choke with invalid filter chain, if nothing else).

Subblock filter is somewhat broken for now. It will be
updated once the encoded format of the Subblock filter
has been decided.
2008-06-18 18:02:10 +03:00
Lasse Collin ed6664146f Remove support for pre-C89 libc versions that lack memcpy,
memmove, and memset.
2008-05-11 14:24:42 +03:00
Lasse Collin b09464bf9a Improved C99 compiler detection in configure.ac. It will
pass -std=gnu99 instead of -std=c99 to GCC now, but -pedantic
should still give warnings about GNU extensions like before
except with some special keywords like asm().
2008-05-11 14:17:21 +03:00
Lasse Collin 8f804c29aa Bumped version number to 4.999.3alpha. It will become 5.0.0
once we have a stable release (won't be very soon). The
version number is no longer related to version of LZMA SDK.

Made some small Automake-related changes to toplevel
Makefile.am and configure.ac.
2008-04-25 13:32:35 +03:00
Lasse Collin 641998c3e1 Replaced the range decoder optimization that used arithmetic
right shift with as fast version that doesn't need
arithmetic right shift. Removed the related check from
configure.ac.
2008-03-24 16:38:40 +02:00
Lasse Collin 03e0e8a0d7 Added autoconf check to detect if we can use arithmetic
right shift for optimizations.
2008-03-22 14:18:29 +02:00
Lasse Collin 61dc82f3e3 Added the debug directory and the first debug tool
(sync_flush). These tools are not built unless the
user runs "make" in the debug directory.
2008-01-18 20:18:08 +02:00
Lasse Collin 079c4f7fc2 Don't add -g to CFLAGS when --enable-debug is specified.
It's the job of the user to put that in CFLAGS.
2008-01-18 17:21:24 +02:00
Lasse Collin f3c88e8b8d Fixed assembler detection in configure.ac, and added
detection for x86_64.
2008-01-15 13:29:14 +02:00
Lasse Collin 382808514a Define HAVE_ASM_X86 when x86 assembler optimizations are
used. This #define will be useful for inline assembly.
2008-01-09 20:05:57 +02:00
Lasse Collin c7189d981a Test for $GCC = yes instead of if it is non-empty. This
way it is possible to use ac_cv_c_compiler_gnu=no to
force configure to think it is using non-GNU C compiler.
2008-01-07 23:14:25 +02:00
Lasse Collin 1239649f96 Cosmetic changes to configure.ac. 2008-01-06 21:47:17 +02:00
Lasse Collin 88ee301ec2 Automatically disable assembler code on Darwin x86.
Darwin has different ABI than GNU+Linux and Solaris,
thus the assembler code doesn't assemble on Darwin.
2008-01-06 19:46:38 +02:00
Lasse Collin 4e7e54c4c5 Introduced compatibility with systems that have pre-C99
or no inttypes.h. This is useful when the compiler has
good enough support for C99, but libc headers don't.

Changed liblzma API so that sys/types.h and inttypes.h
have to be #included before #including lzma.h. On systems
that don't have C99 inttypes.h, it's the problem of the
applications to provide the required types and macros
before #including lzma.h.

If lzma.h defined the missing types and macros, it could
conflict with third-party applications whose configure
has detected that the types are missing and defined them
in config.h already. An alternative would have been
introducing lzma_uint32 and similar types, but that would
just be an extra pain on modern systems.
2008-01-06 16:27:41 +02:00
Lasse Collin 072927905a Rearranged testing of GCC-specific flags. 2008-01-05 19:42:04 +02:00
Lasse Collin ce64df7162 Bumped version number to 4.42.3alpha. 2007-12-10 20:44:16 +02:00
Lasse Collin b499a0403e Disabled some unneeded warnings and made "make dist" work. 2007-12-10 15:02:50 +02:00
Lasse Collin 5d018dc035 Imported to git. 2007-12-09 00:42:33 +02:00