This package doesn't seem to exist in epel6 (or rhel6 that I can see).

Perhaps you need to get it branched and built in epel6?

The package failed to build on ppc64:
http://koji.fedoraproject.org/koji/buildinfo?buildID=215465

Yeah, I didn't look at the email from the build system closely enough and I thought that it finished successfully. I've fixed the problem and a new build is ready:

http://koji.fedoraproject.org/koji/taskinfo?taskID=2741805

ok, there it is. ;)

tagged. Please let us know when you no longer need the override.

The override should no longer be needed.

removed from override. Thanks.

Grrr.... I should have known. There's a new point release of Asterisk to fix regressions in the previous one so I need libsrtp in the build override again. Thanks for your patience with me!

ha. :)

It's back in now.

koji wait-repo --build=libsrtp-1.4.4-2.20101004cvs.el6 dist-6E-epel-build; xcowsay "The build is in the buildroot"

This is in stable now, so I've untagged it from dist-6E-epel-override