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@c The GNU General Public License.
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@center Version 3, 29 June 2007
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@c This file is intended to be included within another document,
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@c hence no sectioning command or @node.
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Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/}
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Everyone is permitted to copy and distribute verbatim copies of this
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license document, but changing it is not allowed.
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The GNU General Public License is a free, copyleft license for
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software and other kinds of works.
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The licenses for most software and other practical works are designed
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to take away your freedom to share and change the works. By contrast,
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the GNU General Public License is intended to guarantee your freedom
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to share and change all versions of a program---to make sure it remains
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free software for all its users. We, the Free Software Foundation,
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use the GNU General Public License for most of our software; it
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applies also to any other work released this way by its authors. You
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can apply it to your programs, too.
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When we speak of free software, we are referring to freedom, not
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price. Our General Public Licenses are designed to make sure that you
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have the freedom to distribute copies of free software (and charge for
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want it, that you can change the software or use pieces of it in new
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free programs, and that you know you can do these things.
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To protect your rights, we need to prevent others from denying you
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Developers that use the GNU GPL protect your rights with two steps:
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For the developers' and authors' protection, the GPL clearly explains
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@heading TERMS AND CONDITIONS
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``This License'' refers to version 3 of the GNU General Public License.
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``Copyright'' also means copyright-like laws that apply to other kinds
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The Corresponding Source need not include anything that users can
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The Corresponding Source for a work in source code form is that same
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@item Basic Permissions.
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All rights granted under this License are granted for the term of
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conditions are met. This License explicitly affirms your unlimited
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You may make, run and propagate covered works that you do not convey,
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You may convey covered works to others for the sole purpose of having
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Conveying under any other circumstances is permitted solely under the
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@item Protecting Users' Legal Rights From Anti-Circumvention Law.
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No covered work shall be deemed part of an effective technological
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When you convey a covered work, you waive any legal power to forbid
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@item Conveying Verbatim Copies.
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You may convey verbatim copies of the Program's source code as you
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receive it, in any medium, provided that you conspicuously and
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keep intact all notices of the absence of any warranty; and give all
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@item Conveying Modified Source Versions.
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You may convey a work based on the Program, or the modifications to
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A compilation of a covered work with other separate and independent
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``aggregate'' if the compilation and its resulting copyright are not
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used to limit the access or legal rights of the compilation's users
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@item Conveying Non-Source Forms.
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You may convey a covered work in object code form under the terms of
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Convey the object code in, or embodied in, a physical product
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Convey the object code using peer-to-peer transmission, provided you
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A ``User Product'' is either (1) a ``consumer product'', which means any
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If you convey an object code work under this section in, or with, or
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in accord with this section must be in a format that is publicly
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source code form), and must require no special password or key for
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@item Additional Terms.
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``Additional permissions'' are terms that supplement the terms of this
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Additional permissions that are applicable to the entire Program shall
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When you convey a copy of a covered work, you may at your option
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All other non-permissive additional terms are considered ``further
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If you add terms to a covered work in accord with this section, you
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Additional terms, permissive or non-permissive, may be stated in the
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above requirements apply either way.
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You may not propagate or modify a covered work except as expressly
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However, if you cease all violation of this License, then your license
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Moreover, your license from a particular copyright holder is
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Termination of your rights under this section does not terminate the
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@item Acceptance Not Required for Having Copies.
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You are not required to accept this License in order to receive or run
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@item Automatic Licensing of Downstream Recipients.
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Each time you convey a covered work, the recipient automatically
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An ``entity transaction'' is a transaction transferring control of an
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You may not impose any further restrictions on the exercise of the
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A ``contributor'' is a copyright holder who authorizes use under this
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A contributor's ``essential patent claims'' are all patent claims owned
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but do not include claims that would be infringed only as a
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In the following three paragraphs, a ``patent license'' is any express
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If you convey a covered work, knowingly relying on a patent license,
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If, pursuant to or in connection with a single transaction or
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A patent license is ``discriminatory'' if it does not include within the
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license was granted, prior to 28 March 2007.
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Nothing in this License shall be construed as excluding or limiting
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any implied license or other defenses to infringement that may
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otherwise be available to you under applicable patent law.
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@item No Surrender of Others' Freedom.
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If conditions are imposed on you (whether by court order, agreement or
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excuse you from the conditions of this License. If you cannot convey
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consequence you may not convey it at all. For example, if you agree
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to terms that obligate you to collect a royalty for further conveying
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from those to whom you convey the Program, the only way you could
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satisfy both those terms and this License would be to refrain entirely
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from conveying the Program.
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@item Use with the GNU Affero General Public License.
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Notwithstanding any other provision of this License, you have
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permission to link or combine any covered work with a work licensed
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License will continue to apply to the part which is the covered work,
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but the special requirements of the GNU Affero General Public License,
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section 13, concerning interaction through a network will apply to the
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@item Revised Versions of this License.
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The Free Software Foundation may publish revised and/or new versions
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of the GNU General Public License from time to time. Such new
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versions will be similar in spirit to the present version, but may
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differ in detail to address new problems or concerns.
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Each version is given a distinguishing version number. If the Program
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the Program does not specify a version number of the GNU General
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If the Program specifies that a proxy can decide which future versions
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choose that version for the Program.
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Later license versions may give you additional or different
619
permissions. However, no additional obligations are imposed on any
620
author or copyright holder as a result of your choosing to follow a
623
@item Disclaimer of Warranty.
625
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
626
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
627
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT
628
WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
629
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
630
A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
631
PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
632
DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
635
@item Limitation of Liability.
637
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
638
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
639
CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
640
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
641
ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
642
NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
643
LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
644
TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
645
PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
647
@item Interpretation of Sections 15 and 16.
649
If the disclaimer of warranty and limitation of liability provided
650
above cannot be given local legal effect according to their terms,
651
reviewing courts shall apply local law that most closely approximates
652
an absolute waiver of all civil liability in connection with the
653
Program, unless a warranty or assumption of liability accompanies a
654
copy of the Program in return for a fee.
658
@heading END OF TERMS AND CONDITIONS
660
@heading How to Apply These Terms to Your New Programs
662
If you develop a new program, and you want it to be of the greatest
663
possible use to the public, the best way to achieve this is to make it
664
free software which everyone can redistribute and change under these
667
To do so, attach the following notices to the program. It is safest
668
to attach them to the start of each source file to most effectively
669
state the exclusion of warranty; and each file should have at least
670
the ``copyright'' line and a pointer to where the full notice is found.
673
@var{one line to give the program's name and a brief idea of what it does.}
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Copyright (C) @var{year} @var{name of author}
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This program is free software: you can redistribute it and/or modify
677
it under the terms of the GNU General Public License as published by
678
the Free Software Foundation, either version 3 of the License, or (at
679
your option) any later version.
681
This program is distributed in the hope that it will be useful, but
682
WITHOUT ANY WARRANTY; without even the implied warranty of
683
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
684
General Public License for more details.
686
You should have received a copy of the GNU General Public License
687
along with this program. If not, see @url{http://www.gnu.org/licenses/}.
690
Also add information on how to contact you by electronic and paper mail.
692
If the program does terminal interaction, make it output a short
693
notice like this when it starts in an interactive mode:
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@var{program} Copyright (C) @var{year} @var{name of author}
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This program comes with ABSOLUTELY NO WARRANTY; for details type @samp{show w}.
698
This is free software, and you are welcome to redistribute it
699
under certain conditions; type @samp{show c} for details.
702
The hypothetical commands @samp{show w} and @samp{show c} should show
703
the appropriate parts of the General Public License. Of course, your
704
program's commands might be different; for a GUI interface, you would
705
use an ``about box''.
707
You should also get your employer (if you work as a programmer) or school,
708
if any, to sign a ``copyright disclaimer'' for the program, if necessary.
709
For more information on this, and how to apply and follow the GNU GPL, see
710
@url{http://www.gnu.org/licenses/}.
712
The GNU General Public License does not permit incorporating your
713
program into proprietary programs. If your program is a subroutine
714
library, you may consider it more useful to permit linking proprietary
715
applications with the library. If this is what you want to do, use
716
the GNU Lesser General Public License instead of this License. But
717
first, please read @url{http://www.gnu.org/philosophy/why-not-lgpl.html}.
added
removed
gnulib/doc/gpl-3.0.texi
