...
	OPENGL_LIBS => '-L/usr/local/lib -lGL -lGLU -lXext -lX11',
#  Mesa need -DGL_GLEXT_LEGACY for glPolygonOffsetEXT amoung others
	OPENGL_DEFINE => '-DGL_GLEXT_LEGACY',
 	OPENGL_INC => '-I/usr/include/GL/',
	...