Tarball Location For Upstream Redhat

[Jeff Pitman <symbiont berlios de>]

Just curious on this: In most cases, a spec can be defined such that a 
proper URL can be put in place of "Source:" such that a build system 
could download the tarball from the upstream source. However, there are 
a number of source packages in the distribution where Redhat is the 
upstream provider for that software. Is there currently a location 
where the source tarball can be downloaded?  Or does the source RPM 
constitute the official release?  Maybe this is something a build 
system should handle: SRPM URLs in the Source: tag.

thanks,
-- 
-jeff