lzma tarball support

[Joshua Root]

Anders F Björklund wrote:
> Vincent Lefevre wrote:
> 
>>> To install the "lzma" program, see port lzmautils.
>> So, should the port build-depend on lzmautils?
> 
> Probably not, lzma(1) could come from anywhere ?
> 
> The .tar.bz2 doesn't really depend on bzip2 either,
> for instance. And neither does .zip on any unzip.
> So I guess they all live in the grey zone between
> requirements of base and requirements of ports...

Yeah. They should be bin: deps.

> Anyway, "use_lzma" should probably handle that ?
> No need to have to copy/paste stuff to all ports.

Indeed. A related ticket: <http://trac.macports.org/ticket/13981>

- Josh