This program is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by the
  Free Software Foundation; either version 2 of the License, or (at your
  option) any later version.
  .
  This program is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
  Public License for more details.
  .
  You should have received a copy of the GNU General Public License along
  with this program. If not, see <http://www.gnu.org/licenses/>.
  .
  As a special exception, the respective Autoconf Macro's copyright owner
  gives unlimited permission to copy, distribute and modify the configure
  scripts that are the output of Autoconf when processing the Macro. You
  need not follow the terms of the GNU General Public License when using
  or distributing such scripts, even though portions of the text of the
  Macro appear in them. The GNU General Public License (GPL) does govern
  all other use of the material that constitutes the Autoconf Macro.
  .
  This special exception to the GPL applies to versions of the Autoconf
  Macro released by the Autoconf Macro Archive. When you make and
  distribute a modified version of the Autoconf Macro, you may extend this
  special exception to the GPL to apply to your modified version as well.
  .
  On Debian systems, the full text of the GNU General Public
  License version 2 can be found in the file
  `/usr/share/common-licenses/GPL-2'. 

   This software is copyrighted by the Regents of the University of
   California, Sun Microsystems, Inc., Scriptics Corporation, ActiveState
   Corporation and other parties.  The following terms apply to all files
   associated with the software unless explicitly disclaimed in
   individual files.
   .    
   The authors hereby grant permission to use, copy, modify, distribute,
   and license this software and its documentation for any purpose, provided
   that existing copyright notices are retained in all copies and that this
   notice is included verbatim in any distributions. No written agreement,
   license, or royalty fee is required for any of the authorized uses.
   Modifications to this software may be copyrighted by their authors
   and need not follow the licensing terms described here, provided that
   the new terms are clearly indicated on the first page of each file where
   they apply.
   .
   IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
   FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
   ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
   DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
   POSSIBILITY OF SUCH DAMAGE.
   .
   THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
   IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
   NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
   MODIFICATIONS.
   .
   GOVERNMENT USE: If you are acquiring this software on behalf of the
   U.S. government, the Government shall have only "Restricted Rights"
   in the software and related documentation as defined in the Federal 
   Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
   are acquiring the software on behalf of the Department of Defense, the
   software shall be classified as "Commercial Computer Software" and the
   Government shall have only "Restricted Rights" as defined in Clause
   252.227-7013 (c) (1) of DFARs.  Notwithstanding the foregoing, the
   authors grant the U.S. Government and others acting in its behalf
   permission to use and distribute the software in accordance with the
   terms specified in this license.