Where can I get recent redhat/asterisk.spec file?

I guess there must be *.spec file(s) since there are RPMs generated for
the yum repo mentioned here http://www.asterisk.org/downloads/yum.
I looked in svn and could not find anything in 1.6 nor 1.8 branches.
I grep’d for spec and rpm in the 1.8.0 source and didn’t find it.

Thanks in advance for any help.

A bit more digging and I found an asterisk.spec file inside this source rpm
http://packages.asterisk.org/centos/5/current/SRPMS/asterisk16-1.6.2.11-2_centos5.src.rpm

Still, it is in svn somewhere, no?