the new group is the same as the old one. Test of devel/p5-Alien-Base
fails due to xz failure. Not calling fchown(2) in cases where the
group would not change anyway, fixes both. Patch discussed with
upstream and cerry-picked from there.
OK naddy@
This is used for -T0 which auto-detects the number of cores for parallel
compression. xz prefers sysctl over sysconf (see m4/tuklib_cpucores.m4
and src/common/tuklib_cpucores.c for reasons) but this doesn't work for
us; just set an autoconf cache variable to force sysconf which works
better for us.
it's easy to drop to only allowing stdio and file operations. There's scope to
push this further (e.g. when used in a simple pipeline, no more than stdio
should be necessary). ok naddy@ (maintainer).
* xz --force now (de)compresses files that have setuid, setgid,
or sticky bit set and files that have multiple hard links.
The man page had it documented this way already, but the code
had a bug.
* gzip and bzip2 support in xzdiff was fixed.
LZMA is a general purporse compression algorithm designed by Igor
Pavlov as part of 7-Zip. It provides high compression ratio while
keeping the decompression speed fast.
XZ Utils are an attempt to make LZMA compression easy to use on
free (as in freedom) operating systems. This is achieved by providing
tools and libraries which are similar to use than the equivalents
of the most popular existing compression algorithms.
