The documentation is covered under the GNU FDL:
Copyright (c) 2000 Linas Vepstas.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.1
or any later version published by the Free Software Foundation;
with the Invariant Sections being LIST THEIR TITLES, with the
Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
A copy of the license is included in the section entitled "GNU
Free Documentation License".
The source code is covered byt the GNU GPL, and also the following (which are compatible with the GPL):
This software was derived, in part, from software created by Silicon
Graphics, Inc. for public use. The base software was from WebStone
version 2.0b4. The WebStone software is copyright 1995, Silicon Graphics,
Inc. Use of WebStone is governed by the following license statement
as well as the heading given below. This heading is present in all of
the WebStone source files:
This file and all files contained in this directory are
copyright 1995, Silicon Graphics, Inc.
This software is provided without support and without any obligation on the
part of Silicon Graphics, Inc. to assist in its use, correction, modification
or enhancement. There is no guarantee that this software will be included in
future software releases, and it probably will not be included.
THIS SOFTWARE IS PROVIDED "AS IS" WITH NO WARRANTIES OF ANY KIND INCLUDING THE
WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
In no event will Silicon Graphics, Inc. be liable for any lost revenue or
profits or other special, indirect and consequential damages, even if
Silicon Graphics, Inc. has been advised of the possibility of such damages.
/**************************************************************************
* *
* Copyright (C) 1995 Silicon Graphics, Inc. *
* *
* These coded instructions, statements, and computer programs were *
* developed by SGI for public use. If any changes are made to this code*
* please try to get the changes back to the author. Feel free to make *
* modifications and changes to the code and release it. *
* *
**************************************************************************/
This software was derived, in part, from software created by Sverre H. Huseby
<sverrehu@online.no> and covered under the "Artistic License"
http://ibiblio.org/pub/Linux/LICENSES/artistic.license