Re: [Plib-devel] OpenGL headers (was: Updated configure script in CVS)

[Steve B. <sjb...@ai...>]

Sebastian Ude wrote:

>>can't that just be
>>
>>#ifdef __APPLE__
>>#  include <OpenGL/glu.h>
>>#else
>>#  include <GL/glu.h>
>>#endif
>>
>>AFAIK 
>><GL/glu.h> #includes "gl.h"   and 
>><GL/glut.h>  #includes "glu.h"


> Well, the examples from the red and the green book always #include *both*
> gl.h and glu.h (in this order).

Yes.

> The question is if it is said anywhere that glu.h *must* include gl.h.

I don't think I've seen that said anywhere - but a more significant question
is "Why are we including glu.h at all?"  I doubt we are using GLU functions
anywhere in the core package - and it's just one more annoying dependancy
we could avoid.

So I think we just need:

#include <GL/gl.h>

...however, some of the example programs *do* use glu.h functions - so the
problem has to be resolved there.  However, it *is* defined that glut.h
includes both gl.h and glu.h - so since (IIRC) we include glut.h in all of the
examples and demos, we should be OK there too.

I think the only file that's affected is ul.h - and didn't we just remove
the #include <GL/gl*> from that file?

----------------------------- Steve Baker -------------------------------
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