Copyright (C) 1985, 1990 Regents of the University of California.

Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without
fee is hereby granted, provided that the above copyright
notice appear in all copies.  The University of California
makes no representations about the suitability of this
software for any purpose.  It is provided "as is" without
express or implied warranty.  Export of this software outside
of the United States of America may require an export license.