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567sue for patent infringement).  To &ldquo;grant&rdquo; such a patent license to a
568party means to make such an agreement or commitment not to enforce a
569patent against the party.
570
571     <p>If you convey a covered work, knowingly relying on a patent license,
572and the Corresponding Source of the work is not available for anyone
573to copy, free of charge and under the terms of this License, through a
574publicly available network server or other readily accessible means,
575then you must either (1) cause the Corresponding Source to be so
576available, or (2) arrange to deprive yourself of the benefit of the
577patent license for this particular work, or (3) arrange, in a manner
578consistent with the requirements of this License, to extend the patent
579license to downstream recipients.  &ldquo;Knowingly relying&rdquo; means you have
580actual knowledge that, but for the patent license, your conveying the
581covered work in a country, or your recipient's use of the covered work
582in a country, would infringe one or more identifiable patents in that
583country that you have reason to believe are valid.
584
585     <p>If, pursuant to or in connection with a single transaction or
586arrangement, you convey, or propagate by procuring conveyance of, a
587covered work, and grant a patent license to some of the parties
588receiving the covered work authorizing them to use, propagate, modify
589or convey a specific copy of the covered work, then the patent license
590you grant is automatically extended to all recipients of the covered
591work and works based on it.
592
593     <p>A patent license is &ldquo;discriminatory&rdquo; if it does not include within the
594scope of its coverage, prohibits the exercise of, or is conditioned on
595the non-exercise of one or more of the rights that are specifically
596granted under this License.  You may not convey a covered work if you
597are a party to an arrangement with a third party that is in the
598business of distributing software, under which you make payment to the
599third party based on the extent of your activity of conveying the
600work, and under which the third party grants, to any of the parties
601who would receive the covered work from you, a discriminatory patent
602license (a) in connection with copies of the covered work conveyed by
603you (or copies made from those copies), or (b) primarily for and in
604connection with specific products or compilations that contain the
605covered work, unless you entered into that arrangement, or that patent
606license was granted, prior to 28 March 2007.
607
608     <p>Nothing in this License shall be construed as excluding or limiting
609any implied license or other defenses to infringement that may
610otherwise be available to you under applicable patent law.
611
612     <li>No Surrender of Others' Freedom.
613
614     <p>If conditions are imposed on you (whether by court order, agreement or
615otherwise) that contradict the conditions of this License, they do not
616excuse you from the conditions of this License.  If you cannot convey
617a covered work so as to satisfy simultaneously your obligations under
618this License and any other pertinent obligations, then as a
619consequence you may not convey it at all.  For example, if you agree
620to terms that obligate you to collect a royalty for further conveying
621from those to whom you convey the Program, the only way you could
622satisfy both those terms and this License would be to refrain entirely
623from conveying the Program.
624
625     <li>Use with the GNU Affero General Public License.
626
627     <p>Notwithstanding any other provision of this License, you have
628permission to link or combine any covered work with a work licensed
629under version 3 of the GNU Affero General Public License into a single
630combined work, and to convey the resulting work.  The terms of this
631License will continue to apply to the part which is the covered work,
632but the special requirements of the GNU Affero General Public License,
633section 13, concerning interaction through a network will apply to the
634combination as such.
635
636     <li>Revised Versions of this License.
637
638     <p>The Free Software Foundation may publish revised and/or new versions
639of the GNU General Public License from time to time.  Such new
640versions will be similar in spirit to the present version, but may
641differ in detail to address new problems or concerns.
642
643     <p>Each version is given a distinguishing version number.  If the Program
644specifies that a certain numbered version of the GNU General Public
645License &ldquo;or any later version&rdquo; applies to it, you have the option of
646following the terms and conditions either of that numbered version or
647of any later version published by the Free Software Foundation.  If
648the Program does not specify a version number of the GNU General
649Public License, you may choose any version ever published by the Free
650Software Foundation.
651
652     <p>If the Program specifies that a proxy can decide which future versions
653of the GNU General Public License can be used, that proxy's public
654statement of acceptance of a version permanently authorizes you to
655choose that version for the Program.
656
657     <p>Later license versions may give you additional or different
658permissions.  However, no additional obligations are imposed on any
659author or copyright holder as a result of your choosing to follow a
660later version.
661
662     <li>Disclaimer of Warranty.
663
664     <p>THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
665APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
666HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM &ldquo;AS IS&rdquo; WITHOUT
667WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
668LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
669A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND
670PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE
671DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
672CORRECTION.
673
674     <li>Limitation of Liability.
675
676     <p>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
677WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
678CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
679INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
680ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
681NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
682LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
683TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
684PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
685
686     <li>Interpretation of Sections 15 and 16.
687
688     <p>If the disclaimer of warranty and limitation of liability provided
689above cannot be given local legal effect according to their terms,
690reviewing courts shall apply local law that most closely approximates
691an absolute waiver of all civil liability in connection with the
692Program, unless a warranty or assumption of liability accompanies a
693copy of the Program in return for a fee.
694
695     </ol>
696
697<h3 class="heading">END OF TERMS AND CONDITIONS</h3>
698
699<h3 class="heading">How to Apply These Terms to Your New Programs</h3>
700
701<p>If you develop a new program, and you want it to be of the greatest
702possible use to the public, the best way to achieve this is to make it
703free software which everyone can redistribute and change under these
704terms.
705
706 <p>To do so, attach the following notices to the program.  It is safest
707to attach them to the start of each source file to most effectively
708state the exclusion of warranty; and each file should have at least
709the &ldquo;copyright&rdquo; line and a pointer to where the full notice is found.
710
711<pre class="smallexample">     <var>one line to give the program's name and a brief idea of what it does.</var>
712     Copyright (C) <var>year</var> <var>name of author</var>
713     
714     This program is free software: you can redistribute it and/or modify
715     it under the terms of the GNU General Public License as published by
716     the Free Software Foundation, either version 3 of the License, or (at
717     your option) any later version.
718     
719     This program is distributed in the hope that it will be useful, but
720     WITHOUT ANY WARRANTY; without even the implied warranty of
721     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
722     General Public License for more details.
723     
724     You should have received a copy of the GNU General Public License
725     along with this program.  If not, see <a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>.
726</pre>
727 <p>Also add information on how to contact you by electronic and paper mail.
728
729 <p>If the program does terminal interaction, make it output a short
730notice like this when it starts in an interactive mode:
731
732<pre class="smallexample">     <var>program</var> Copyright (C) <var>year</var> <var>name of author</var>
733     This program comes with ABSOLUTELY NO WARRANTY; for details type &lsquo;<samp><span class="samp">show w</span></samp>&rsquo;.
734     This is free software, and you are welcome to redistribute it
735     under certain conditions; type &lsquo;<samp><span class="samp">show c</span></samp>&rsquo; for details.
736</pre>
737 <p>The hypothetical commands &lsquo;<samp><span class="samp">show w</span></samp>&rsquo; and &lsquo;<samp><span class="samp">show c</span></samp>&rsquo; should show
738the appropriate parts of the General Public License.  Of course, your
739program's commands might be different; for a GUI interface, you would
740use an &ldquo;about box&rdquo;.
741
742 <p>You should also get your employer (if you work as a programmer) or school,
743if any, to sign a &ldquo;copyright disclaimer&rdquo; for the program, if necessary. 
744For more information on this, and how to apply and follow the GNU GPL, see
745<a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>.
746
747 <p>The GNU General Public License does not permit incorporating your
748program into proprietary programs.  If your program is a subroutine
749library, you may consider it more useful to permit linking proprietary
750applications with the library.  If this is what you want to do, use
751the GNU Lesser General Public License instead of this License.  But
752first, please read <a href="http://www.gnu.org/philosophy/why-not-lgpl.html">http://www.gnu.org/philosophy/why-not-lgpl.html</a>. 
753<!-- man end -->
754
755<!--  -->
756<!-- GFDL -->
757<!--  -->
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759<!-- man begin DESCRIPTION -->
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