 Copyright (c) 1993 Martin Birgmeier
 All rights reserved.
 
 You may redistribute unmodified or modified versions of this source
 code provided that the above copyright notice and this and the
 following conditions are retained.
 
 This software is provided ``as is'', and comes with no warranties
 of any kind. I shall in no event be liable for anything that happens
 to anyone/anything when using this software.