The Knowledge Base article on "why we don't have SRPMs" says:
"We are currently investigating using a source RPM generator as documented via a macro."
I couldn't find any related Jira issue though, thus I've now submitted this one.
Reason for this is that I'm missing the ability to say
to pull in all build dependencies required to compile MySQL from source.
I don't even plan to build from SRPMs, but being able to install all required packages in a single step is pretty convenient even when building from source tarballs or directly from bzr / git ...