This entire subtree is copyright the University of Toronto.
The following copyright notice applies to all files found here.  None of
these files contain AT&T proprietary source code.
________________________________________________________________________

	Copyright (c) 1986 by University of Toronto.
	Written by Henry Spencer.  Not derived from licensed software.

	Permission is granted to anyone to use this software for any
	purpose on any computer system, and to redistribute it freely,
	subject to the following restrictions:

	1. The author is not responsible for the consequences of use of
	this software, no matter how awful, even if they arise
	from defects in it.

	2. The origin of this software must not be misrepresented, 
	either by explicit claim or by omission.

	3. Altered versions must be plainly marked as such, and must
	not be misrepresented as being the original software.