There seem to be a FAQ in squid-users about not finding builds for certain OS, or old versions of RPMs etc.
The idea that comes to me is that we need a list somewhere of the sources for OS-specific builds that are available along with some way of getting newer builds for common OS that have no active maintainer. Without knowing a lot about the sourceforge compile farm it seems to me we could possible leverage that. Has anyone looked at it before? Amos