What is xz ?

[b. f.]

> > From owner-freebsd-questions at freebsd.org  Sat Jul  2 06:45:00 2011
> > Date: Sat, 2 Jul 2011 13:43:55 +0200
> > From: Polytropon <freebsd at edvax.de>
> > To: Chris Whitehouse <cwhiteh at onetel.com>
> > Cc: freebsd-questions at freebsd.org
> > Subject: Re: What is xz ?
> >
> > On Sat, 02 Jul 2011 12:26:14 +0100, Chris Whitehouse wrote:
> > > On 02/07/2011 07:38, Polytropon wrote:
>
> >
> > Correct. I'm currently on 7-STABLE where it's "not yet" part of
> > the base system, but my new 8.2-STABLE also has it in /usr/bin.
> > I believe it has been introduced with version 8...
>
> It is part of  '7.2-RELEASE',   Dunno about 7.1

Hmm.  Are you sure?  If this is true, the archivers/xz port needs to
be patched to IGNORE those branches of 7 that have xz.  But I don't
see any mention of it at:

http://www.freebsd.org/cgi/cvsweb.cgi/src/contrib/xz/ChangeLog

or

http://svnweb.FreeBSD.org/base/stable/7/contrib/

b.