xz-compressed kernel modules

[Richard W.M. Jones]

Rawhide has xz-compressed kernel modules.  I think this is a good
thing as it saves a lot of disk space in VMs.

It did however necessitate a change in supermin (used by libguestfs).
Upstream already supported xz-compressed modules -- the patch was
contributed by Arch Linux which has been using them for a long time.
However it was not turned on in Fedora because it needs a statically
linked liblzma (we're building a tiny, static init to bootstrap a VM).

So I've taken co-maint of xz and added the xz-static subpackage.
[Discussion: https://bugzilla.redhat.com/show_bug.cgi?id=547011 ]

I've added this to Rawhide.

It's waiting in updates-testing for F20, and could do with some
testing and karma:
https://admin.fedoraproject.org/updates/FEDORA-2014-6534/xz-5.1.2-9alpha.fc20,supermin-5.1.8-5.fc20

I've not done anything for F19.  Please let me know if xz-compressed
modules will be turned on there.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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