Big Endian binary STL fix + misc updates

These changes enable importing of STL on big-endian machines. 

Some other changes are to enable the build on PPC64 machines.

Also I ported the qt4-build-script from macosx to linux side, and GLU as well (some machines dont have GLU as Mesa recently split GLU out into a separate library)

tested on the IBM ppc64 at Oregon State Open Source Lab via GNU Compile Farm