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Thanks to Jouk Jansen.
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Thanks to Charles Wilson.
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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.
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Thanks to Christian Weisgerber for pointing out some of these.
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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.
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Also move DJGPP-specific code near the code meant
for other DOS-like systems.
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the function call succeeded.
NetBSD 4.0 returns positive values on success, but
NetBSD Current and FreeBSD return zero. OpenBSD's
man page doesn't tell what sysctl() returns on
success. All these BSDs return -1 on error.
Thanks to Robert Elz and Thomas Klausner.
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xz used to reject "xz --lzma2=pb=2," while
"xz --lzma2=pb=2,," worked. Now both work.
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and use a fix that works on all systems using
GNU assembler.
Maybe the assembler code is used e.g. on Solaris x86
but let's worry about it if this doesn't work on it.
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Seems that in addition on Windows and DOS, also OpenBSD
lacks support for %'d style printf() format strings.
So far that is the only modern POSIX-like system I know
with this problem, but after this hack, the thousand
separator shouldn't be a problem on any system.
Maybe testing if a format string like %'d produces
reasonable output is invoking undefined behavior on some
systems, but so far all the problematic systems I've tried
just print the raw format string (e.g. %'d prints 'd).
Maybe Autoconf test would have been better, but this
hack works also for cross-compilation, and avoids
recompilation in case the system libc starts to support
the thousand separator.
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This fixes build on *BSDs and Darwin.
Thanks to Jukka Salmi for the patches.
Richard Koch reported the problem too.
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Thanks to Karl Berry.
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6a2eb54092fc625d59921a607ff68cd1a90aa898 and
71f18e8a066a01dda0c8e5508b135ef104e43e4c required
some changes that weren't applied in debug.
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Thanks to Christian von Roques, Peter Lawler,
and Jim Meyering for the fixes.
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It now includes bug reporting instructions/tips.
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Thanks to Jim Meyering.
(From now on, I try to always remember to put
the relevant thanks to commit messages.)
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Added lzma_nothrow for every function. It adds
throw() when the header is used in C++ code.
Some lzma_attrs were added or removed.
Lots of comments were improved.
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Some questions worth answering were removed, because I
currently don't have good up to date answers to them.
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Thanks to Jonathan Stott for the bug report.
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made in --enable-dynamic.
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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.
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install-exec-hook -> install-data-hook
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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.
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Make xz error message translation usable outside
xz (at least in upcoming lzmainfo).
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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.)
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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.
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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.
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invalid memory access if XZ_OPT was defined.
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Installation and packaging instructions were added.
README and other generic docs were revised.
Some of the documentation files are now installed to $docdir.
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a little.
Fixed a related bug in the toplevel Makefile.am.
Added the build-aux directory to .gitignore.
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This may slightly ease writing scripts that construct
filter-specific option strings dynamically.
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when no custom chain is in use.
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and to conver the man pages to PDF and plain text, which
may be convenient to those who cannot render man pages.
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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.
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like "un", "cat", and "lz" when determining if
xz is run as unxz, xzcat, lzma, unlzma, or lzcat.
This is to ensure that if xz is renamed (e.g. via
--program-transform-name), it doesn't so easily
work in wrong mode.
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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.
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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.
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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.
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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().
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xz and xzdec.
Use also PACKAGE_NAME instead of hardcoding "XZ Utils".
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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.
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to prepare for building them with Autotools.
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--program-{prefix,suffix,transform} is passed to configure.
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Autotools based builds on Windows.
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Charles Wilson's patches).
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to avoid problems on systems with system headers with those
names.
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format character with snprintf() on POSIX systems but not
on non-POSIX systems and still keep xgettext working.
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the Autotools based build system. It's not good yet, more
fixes will follow.
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Fix the ordering of libgnu.a and LTLIBINTL on the linker
command line and added missing LTLIBINTL to tests/Makefile.am.
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minor cleanups.
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Released .xz spec 1.0.2 due to this fix too.
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via lzma_block structure.
This changes ABI but not doesn't break API.
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and --itanium.
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in the xz command line tool.
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Cleaned up the --help message a little.
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Update the memory usage info text in --help to match
the text in xz --long-help.
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--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.
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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.
Cleaned up the output of --help and --long-help.
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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.
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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.
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-Wno-uninitialized to silence a bogus warning.
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given to --enable-encoders and --enable-decoders to determine
if any encoder or decoder support is wanted.
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(rewrite will be better).
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which is the filename used on the WWW.
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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.
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On 64-bit system it would have gone into infinite
loop if a single input buffer was over 4 GiB (unlikely).
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Some minor documentation cleanups were made at the same time.
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Fortunately, this bug had no security risk other than accepting
some corrupt files as valid.
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problems detecting a C99 compiler when some standard
headers are missing.
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Thanks to Bert Wesarg.
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Some other systems have sysinfo() with different semantics.
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It was broken by e114502b2bc371e4a45449832cb69be036360722.
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- Don't use Windows-specific code on Windows. The old code
required at least Windows 2000. Now it should work on
Windows 98 and later, and maybe on Windows 95 too.
- Use less precision when showing estimated remaining time.
- Fix some small design issues.
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pieces to avoid unneeded dependencies making statically
linked applications bigger than needed.
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Thanks to Hongbo Ni for the original patch.
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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.
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Now the version number is not duplicated in the
Windows-specific files anymore.
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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.
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Here DOS-like means DOS, Windows, and OS/2.
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How about this for those of us who do srcdir builds?
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in the repository are generated by Autotools. People
should do test builds in a separate build directory anyway.
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line. Previously custom CFLAGS worked only when they were
passed to configure.
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table, which is used also by LZ encoder. This was needed
because calling lzma_crc32() and ignoring the result is
a no-op due to lzma_attr_pure.
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message suggests.
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separator on Windows when parsing argv[0].
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from autogen.sh.
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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.
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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the comment in hardware.c already said.
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liblzma. Build both static and dynamic liblzma, and also
static and dynamic versions of the command line tools.
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avoid __declspec(dllexport) equivalent.
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need to #define when linking against static liblzma on
platforms like Windows. Most developers don't need to
care about LZMA_API_STATIC at all.
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install.exe, so don't rely on it.
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were linked with crt*.o, which are copyrighted, and thus the
old test files were not in the public domain as a whole. They
are freely distributable though, but it is better to be careful
and avoid including any copyrighted pieces in the test files.
The new files are just compiled and assembled object files,
and thus don't contain any copyrighted code.
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It now builds with MinGW.
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This doesn't affect most systems, since most systems
have better functions available.
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- 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.
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other compilers than MinGW. This may hurt readability
of the API headers slightly, but I don't know any
better way to do this.
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function should be rewritten anyway.
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functions, and cleaned up filter.h API header a little.
May be very buggy, not tested yet.
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on Windows.
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on Windows. sysdefs.h no longer #includes lzma.h, so lzma.h
has to be #included separately where needed.
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beginning of the line.
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stdint.h or inttypes.h.
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officially released. The format has been technically the same
since 2008-11-19, but now that it is frozen, people can start
using it without a fear that the format will break.
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triggered by the previous commit, since these variables were
not used by anything before support for a preset dictionary.
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