mock fix for packages with glib2-devel dependency

[seth vidal]

On Sat, 2007-09-01 at 07:00 -0400, Jesse Keating wrote:
> On Fri, 31 Aug 2007 21:27:11 -0500
> Michael E Brown <Michael_E_Brown at dell.com> wrote:
> 
> > Builds in mock on x86_64 fail for packages with buildrequires on
> > glib2-devel. Reported on EPEL 5.
> > 
> > The suggested fix is to add glib2-devel/glib-devel to the exclude
> > list.
> > 
> > Question: is this something we want to apply for FC6/F7/et al?
> 
> I didn't commit that change or put that change up for patch as it's
> incomplete.  There are plenty of other packages in the multilib set
> that start with gl, and this will be an ever chasing rathole.
> 
> Instead I asked Seth to help us come up with a plugin or syntax that
> would allow us to include rather than exclude.  There was a long
> conversation on IRC about this weeks ago, and the result was a yum
> plugin that would do what we want.  Unfortunately we don't have a good
> facility to use plugins with mock, and we really need it for other
> things as well (like repo priorities to lower bandwidth usage of
> koji.fp.o if static-repos are enabled).
> 
> I think we need to work on yum plugin support in mock so that we can
> fix this properly without continually futzing with regexes to just get
> glibc and glibc-devel.

Okay, so mock should be able to do this, I think, using the mock config
file format. Since it generates a yum.conf and you can generate
arbitrary files within it - we should be able to hack up something in
the short term and do something better in the longer term.

-sv