Added copyright declaration for Christopher Clark, Andrew Tridgell.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

docs/src/user.tex

@@ -52,6 +52,40 @@ are licensed under the terms of the GNU Lesser General Public License, the
 Zope Public License 2.0, or under ``BSD-style'' licenses.  Please refer to the
 COPYING file for details.
 
+Xen includes software by Christopher Clark.  This software is covered by the
+following licence:
+
+\begin{quote}
+Copyright (c) 2002, Christopher Clark.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+\begin{itemize}
+\item Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+\item Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+\item Neither the name of the original author; nor the names of any
+contributors may be used to endorse or promote products derived from this
+software without specific prior written permission.
+\end{itemize}
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+\end{quote}
+
 \cleardoublepage