I have a few ideas,  one is that the /usr/lib, /usr/lib32, /usr/lib64 structure is not what CMake is expecting.  At one point, CMake believes that your system architecture is 64-bit.  Is this correct?  To determine your structure, please run the following commands which describe the contents and link structures of those directories and post the results:

>> ls -al /usr | grep lib

>> ls -al /usr/lib* | grep GL

A patch you can try to explicitly tell CMake where to look is to edit the src/CMake/FindOpenGL.cmake file and change the section that reads:

to say:

This patch assumes that the problem is occurring in SCIRun itself, not when SCIRun is using CMake to build a third-party package like ITK.  Please let me know if this makes a difference, I have not tested it myself.

-Kris