I finally have a chance to test opensuse's build service for freeradius, and it's pretty cool :) 

It also supports granting permission to manage a project to other users (similar to what ubuntu ppa does)

Two fixes needed for the build (pull request submitted on github). Resulting centos RPMs from the test:

http://software.opensuse.org/download.html?project=home%3Afreeradius%3A2.x.x%3Acentos&package=freeradius

http://software.opensuse.org/download.html?project=home%3Afreeradius%3A3.0.x%3Acentos&package=freeradius

Now if only someone has the time to:

- manage the builds

- add other distros, especially RPM-based one (e.g. no packages for *suse so far)

- manage the "freeradius" account on opensuse's build service

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Fajar