[Yum] kernel-source arch

[seth vidal]

> How about something like "exactarch=glibc kernel kernel-smp" being
> recognized? There are actually few packages for which the wrong arch can
> lead to disaster, and there are many more for which it's no big deal
> (like gzip, or 3rd party packages going from i386 to i586 because of
> enabled mmx stuff etc.). Just a thought.

That's probably not a bad idea but it has two problems:

1. it makes the updates processing mind numbingly difficult to follow 
2. it's a change that can't be made in the current stable branch b/c it
will change too many people's config files in midstream.

 1 is not a complete stopper for that going in but 2 is.

I'll think about it for TNV

-sv