GLUT copyright violation

The Haddock documentation embedded in the GLUT package is derived from
"The OpenGL Utility Toolkit (GLUT) Programming Interface API version 3":

        http://www.opengl.org/developers/documentation/glut/spec3/spec3.html
        http://www.opengl.org/developers/documentation/glut/glut-3.spec.ps.gz
        http://www.opengl.org/developers/documentation/glut/glut-3.spec.pdf

which carries the following notice:

> Copyright (c) 1994, 1995, 1996. Mark J. Kilgard. All rights reserved.
>
> All rights reserved. No part of this documentation may be reproduced, in
> any form or by any means, without permission in writing from the author.

It appears that this permission is unavailable.