google actually failed me this time.
So if you want to program with OpenGL in OS X without using Objective-C (since we only have the OpenGL and GLUT frameworks), it seems like you're out of luck. Although.. you _can_ use frameworks without using any other Objective-C. Either use Project Builder and add the two appliciable frameworks (under /System/Library/Frameworks) or use the -framework OpenGL -framework GLUT gcc options from the command-line. Don't forget, this is now #import <GLUT/glut.h> and not #include <GL/glut.h> as you're probably used to.
# — 19 September, 2002