Lasse Collin [Thu, 13 Aug 2009 12:00:21 +0000 (15:00 +0300)]
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.
Lasse Collin [Thu, 13 Aug 2009 09:55:45 +0000 (12:55 +0300)]
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.
Jonathan Nieder [Sun, 9 Aug 2009 18:41:20 +0000 (13:41 -0500)]
“xzdiff a.xz b.xz” always fails
Attempts to compare two compressed files result in no output and
exit status 2.
Instead of going to standard output, ‘diff’ output is being
captured in the xz_status variable along with the exit status from
the decompression commands. Later, when this variable is examined
for nonzero status codes, numerals from dates in the ‘diff’ output
make it appear as though decompression failed.
So let the ‘diff’ output leak to standard output with another file
descriptor. (This trick is used in all similar contexts elsewhere
in xzdiff and in the analogous context in gzip’s zdiff script.)
Jonathan Nieder [Sun, 9 Aug 2009 18:22:12 +0000 (13:22 -0500)]
xzless: Support compressed standard input
It can be somewhat confusing that
less < some_file.txt
works fine, whereas
xzless < some_file.txt.xz
does not. Since version 429, ‘less’ allows a filter specified in
the LESSOPEN environment variable to preprocess its input even if
it comes from standard input, if $LESSOPEN begins with ‘|-’. So
set $LESSOPEN to take advantage of this feature.
Check less’s version at runtime so xzless can continue to work
with older versions.
Lasse Collin [Sat, 1 Aug 2009 21:27:29 +0000 (00:27 +0300)]
Added a copyright notice to Doxyfile.in since it contains
lots of comments from Doxygen.
It seems that the Doxygen authors' intent is to not apply
their copyright on generated files, but since it doesn't
matter for XZ Utils at all, better safe than sorry.
Lasse Collin [Sun, 12 Jul 2009 16:08:30 +0000 (19:08 +0300)]
Add dist-hook to create ChangeLog from the commit log,
and to conver the man pages to PDF and plain text, which
may be convenient to those who cannot render man pages.
Lasse Collin [Fri, 10 Jul 2009 08:39:38 +0000 (11:39 +0300)]
BCJ filters: Reject invalid start offsets with LZMA_OPTIONS_ERROR.
This is a quick and slightly dirty fix to make the code
conform to the latest file format specification. Without
this patch, it's possible to make corrupt files by
specifying start offset that is not a multiple of the
filter's alignment. Custom start offset is almost never
used, so this was only a minor bug.
The xz command line tool doesn't validate the start offset,
so one will get a bit unclear error message if trying to use
an invalid start offset.
Lasse Collin [Wed, 8 Jul 2009 19:50:16 +0000 (22:50 +0300)]
Remove --force from xzdec.
It was ignored for compatibility with xz, but now that
--decompress --stdout --force copies unrecognized files
as is to stdout, simply ignoring --force in xzdec would
be wrong. xzdec will not support copying unrecognized
data as is to stdout, so it cannot support --force.
Lasse Collin [Mon, 6 Jul 2009 07:36:04 +0000 (10:36 +0300)]
Use sed instead of $(SED) so that we don't need to
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.
Lasse Collin [Fri, 3 Jul 2009 21:40:44 +0000 (00:40 +0300)]
Make "xz --decompress --stdout --force" copy unrecognized
files as is to standard output.
This feature is needed to be more compatible with gzip's
behavior. This was more complicated to implement than it
sounds, because the way liblzma is able to return errors with
files of only a few bytes in size. xz now has its own file
type detection code and no longer uses lzma_auto_decoder().
Lasse Collin [Tue, 30 Jun 2009 14:09:57 +0000 (17:09 +0300)]
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.
Lasse Collin [Fri, 26 Jun 2009 17:36:45 +0000 (20:36 +0300)]
Ugly hack to make it possible to use the thousand separator
format character with snprintf() on POSIX systems but not
on non-POSIX systems and still keep xgettext working.
Lasse Collin [Fri, 26 Jun 2009 11:47:31 +0000 (14:47 +0300)]
Fix @variables@ to $(variables) in Makefile.am files.
Fix the ordering of libgnu.a and LTLIBINTL on the linker
command line and added missing LTLIBINTL to tests/Makefile.am.
Lasse Collin [Fri, 22 May 2009 09:27:43 +0000 (12:27 +0300)]
If xz is run as lzma, unlzma, or lzcat, simply imply
--format=lzma. This means that xz emulating lzma
doesn't decompress .xz files, while before this
commit it did. The new way is slightly simpler in
code and especially in upcoming documentation.
Lasse Collin [Fri, 22 May 2009 08:29:50 +0000 (11:29 +0300)]
Make the default memory usage limit 40 % of RAM for both
compressing and decompressing. This should be OK now that
xz automatically scales down the compression settings if
they would exceed the memory usage limit (earlier, the limit
for compression was increased to 90 % because low limit broke
scripts that used "xz -9" on systems with low RAM).
Support spcifying the memory usage limit as a percentage
of RAM (e.g. --memory=50%).
Support --threads=0 to reset the thread limit to the default
value (number of available CPU cores). Use UINT32_MAX instead
of SIZE_MAX as the maximum in args.c. hardware.c was already
expecting uint32_t value.
Lasse Collin [Thu, 21 May 2009 14:22:01 +0000 (17:22 +0300)]
Support special value "max" where xz and xzdec accept an integer.
Don't round the memory usage limit in xzdec --help to avoid
an integer overflow and to not give wrong impression that
the limit is high enough when it may not actually be.
ABCD [Wed, 20 May 2009 21:31:18 +0000 (17:31 -0400)]
Install lzdiff, lzgrep, and lzmore as symlinks
This adds lzdiff, lzgrep, and lzmore to the list of symlinks to install.
It also installs symlinks for the manual pages and removes the new
symlinks on uninstall.
Lasse Collin [Sat, 2 May 2009 11:46:50 +0000 (14:46 +0300)]
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.
Lasse Collin [Tue, 28 Apr 2009 20:08:32 +0000 (23:08 +0300)]
Fixed a crash in liblzma.
liblzma tries to avoid useless free()/malloc() pairs in
initialization when multiple files are handled using the
same lzma_stream. This didn't work with filter chains
due to comparison of wrong pointers in lzma_next_coder_init(),
making liblzma think that no memory reallocation is needed
even when it actually is.
Easy way to trigger this bug is to decompress two files with
a single xz command. The first file should have e.g. x86+LZMA2
as the filter chain, and the second file just LZMA2.