1Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
2Copyright (c) 1991-1995 by Xerox Corporation.  All rights reserved.
3Copyright (c) 1996-1999 by Silicon Graphics.  All rights reserved.
4Copyright (c) 1999-2001 by Hewlett-Packard. All rights reserved.
5Copyright (c) 2006-2008 YAMAMOTO Kengo All rights reserved.
6
7THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
8OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
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10Permission is hereby granted to use or copy this program
11for any purpose,  provided the above notices are retained on all copies.
12Permission to modify the code and to distribute modified code is granted,
13provided the above notices are retained, and a notice that the code was
14modified is included with the above copyright notice.
15
16A few files have other copyright holders.
17