gcc -o schprel schprel.c -O -DMAC_OS_X -I/usr/include/sys -I/System/Library/Frameworks/GLUT.framework/Versions/A/Headers -I/System/Library/Frameworks/OpenGL.framework/Versions/A/Headers -O  -L/usr/local/lib -L/System/Library/Frameworks/OpenGL.framework/Libraries -lGL -lGLU -lobjc -lm -framework GLUT
ld: Undefined symbols:
_initTheGL
_updateTriangles
make: *** [schprel] Error 1
