I tried to use a non-default prefix, and it craps out on "make install" because one of the sql-related files refuses to install in a directory name that didn't end with /usr/local/lib . I was able to work around this by using a --prefix like "/local/freeradius-git/usr/local" instead of just "/local/freeradius-git". A minor annoyance but I thought others might want to hear about it. At least the error message was clear enough that coming up with the workaround was easy.
--Greg - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html