HOWTO use a pre-built release
From GlueXWiki
If you have access to a pre-built version of the GlueX, you can use it without having to check out and build the entire set of sources.
Find a compatible version
Get a version of the script osrelease.pl and execute it. For example:
svn co https://halldsvn.jlab.org/repos/trunk/scripts/build_scripts A build_scripts/clhep_env.csh ... A build_scripts/osrelease.pl ... A build_scripts/Makefile_cernlib U build_scripts > build_scripts/osrelease.pl Linux_Fedora12-i686-gcc4.4.3