Copyright (C) 1990 by the Massachusetts Institute of Technology

Export of this software from the United States of America may require a
specific license from the United States Government. It is the
responsibility of any person or organization contemplating export to obtain
such a license before exporting.

WITHIN THAT CONSTRAINT, 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 and that both that copyright notice and this permission notice
appear in supporting documentation, and that the name of M.I.T. not be used
in advertising or publicity pertaining to distribution of the software
without specific, written prior permission. M.I.T. makes no representations
about the suitability of this software for any purpose. It is provided "as
is" without express or implied warranty.


