Permission to use, copy, modify, distribute, and sell this software
 and its documentation for any purpose is hereby granted without fee,
 provided that (i) the above copyright notices and this permission
 notice appear in all copies of the software and related
 documentation, and (ii) the names of Sam Leffler and Silicon Graphics
 may not be used in any advertising or publicity relating to the
 software without the specific, prior written permission of Sam
 Leffler and Silicon Graphics.
 .
 THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
 EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
 WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 .
 IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR ANY
 SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON
 ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE
 OR PERFORMANCE OF THIS SOFTWARE.