I am trying to use "./configure --x-libraries=/usr/lib:/usr/X11R6/lib" Is this the correct syntax to specify multiple (2) directories for the x-libraries??? My libXext is in /usr/X11R6/lib and other things like libGLU.a is in /usr/lib I am attempting to compile on amd x86_64 on RHEL 4 (centos 4). I have found the faq page but my system is not covered there and fedora does not seem close at this point. THanks, Jerry