RFC: liblzma and xz to FreeBSD base

[Tim Kientzle]

This has already been discussed and the consensus was
to go ahead with it.

I was going to do it myself, but what you have here looks
much more complete than what I have locally right now.

Go for it.

Cheers,

Tim

Martin Matuska wrote:
> Dear fellow devleopers,
> 
> I would like to propose an import of liblzma and the utilities xz, xzdec
> and lzmainfo to base (vendor -> contrib).
> As I was informed, libarchive is already lzma-ready, some of our
> existing code could take advantage of liblzma instantly.
> 
> The source code is imported from:
> http://tukaani.org/xz/xz-4.999.9beta.tar.gz
> 
> All GPLv2, LGPLv2.1 and GPLv3 parts are stripped from the code (they
> cover only the build system and unimportant scripts).
> liblzma, xz, xzdec, lzmainfo are public domain licensed.
> 
> A working patchset against HEAD (includes modified lesspipe.sh):
> http://people.freebsd.org/~mm/patches/xz/
> 
> The only patched file is src/common/bswap.h, with the patch from the
> archivers/xz port.
> 
> Comments and suggestions are welcome.
> 
> Thanks,
> mm
> 
> 
> 
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