The decoder considered empty LZMA2 streams to be corrupt.
This shouldn't matter much with .xz files, because no encoder
creates empty LZMA2 streams in .xz. This bug is more likely
to cause problems in applications that use raw LZMA2 streams.

Now it uses "grep -q".

Thanks to Gregory Margo.

It didn't work at all. It tried to use the -q option
for grep, but it appended it after "--". This works
around it by redirecting to /dev/null. The downside
is that this can be slower with big files compared
to proper use of "grep -q".

Thanks to Gregory Margo.

struct suffix_pair isn't needed in compresed_name()
so get rid of it there.

Now "xz -S .test foo.test" refuses to compress the
file because it already has the suffix .test. The man
page had it documented this way already.

Thanks to Jakub Bogusz.

xz didn't compress setuid/setgid/sticky files and files
with multiple hard links even with --force. This bug was
introduced in 23ac2c44.

Thanks to Charles Wilson.

Thanks to Cristian Rodríguez for the original patch.

This fixes portability to systems that lack C99 inttypes.h.

Thanks to Juan Manuel Guerrero.

Juan Manuel Guerrero had fixed this in his XZ Utils port
to DOS/DJGPP. The bug affects also Windows and OS/2.

Thanks to Petr Hubený and Marek Černocký.

Currently the file list generated by Doxygen has src/ at the
beginning of each path.  Paths like common/sysdefs.h and
liblzma/api/lzma.h are easier to read without such a prefix.

Builds from a separate build directory with

	mkdir build
	cd build
	../configure
	doxygen Doxyfile

include an even longer prefix /home/someone/src/xz/src; this
patch has the nice side-effect of eliminating that prefix, too.

Fixes: http://bugs.debian.org/572273

The example programs by Daniel Mealha Cabrita were included
in the git repository, but I had forgot to add them to
Makefile.am. Thus, they didn't get included in the source
package at all by "make dist".

If any of the reserved members in lzma_stream are non-zero
or non-NULL, LZMA_OPTIONS_ERROR is returned. It is possible
that a new feature in the future is indicated by just setting
a reserved member to some other value, so the old liblzma
version need to catch it as an unsupported feature.

The non-standard ones from msvcrt.dll appear to work
most of the time with XZ Utils, but there are some
corner cases where things may go very wrong. So it's
good to use the better replacements provided by
MinGW(-w64) runtime.

This lets compiler use shifting instead of 64-bit division.

Adding support for LZMA_FINISH for Index encoding and
decoding needed tiny additions to the relevant .c files too.

lzma_chunk_size() was commented out because it is
currently useless.

This is similar to DOS/DJGPP that killing the program
with a signal will print a backtrace or a similar message.