GL12 and GL32 both have a GL_BGRA constant with the same value. Fix is to simply remove GL_BGRA from GL32
This bug was found by theagentd, so credit goes to him again
Note: since this is the second time we found a duplicate variable, there really should be a test case that checks for duplicates :S
EDIT: GL_BGRA is also found in ARBVertexArrayBgra, but it's the only thing there. What should be done about that?