The xtm tools and other portions of this distribution are:

##############################################################################
#
# Copyright 1986, 1987, 1988, 1989 by Hewlett-Packard Corporation
# Copyright 1986, 1987, 1988, 1989 by the Massachusetts Institute of Technology
#
# 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.
#
# Hewlett-Packard and M.I.T. make no representations about the
# suitability of this software for any purpose.  It is provided
# "as is" without express or implied warranty.
#
# This software is not subject to any license of the American
# Telephone and Telegraph Company or of the Regents of the
# University of California.
#
##############################################################################

The README, most of the xwdiff client and some of the X test extension code is:

		Copyright (c) 1992 	HaL Computer Systems, Inc.

 Permission to use, copy, modify, distribute, and sell 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.
				       
  This software is provided AS IS with no warranties of any kind.  The author
    shall have no liability with respect to the infringement of copyrights,
     trade secrets or any patents by this file or any part thereof.  In no
      event will the author be liable for any lost revenue or profits or
	      other special, indirect and consequential damages.
