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database/perl/lib/pods/perlgpl.pod
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database/perl/lib/pods/perlgpl.pod
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=head1 NAME
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perlgpl - the GNU General Public License, version 1
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=head1 SYNOPSIS
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You can refer to this document in Pod via "L<perlgpl>"
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Or you can see this document by entering "perldoc perlgpl"
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=head1 DESCRIPTION
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Perl is free software; you can redistribute it and/or modify
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it under the terms of either:
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a) the GNU General Public License as published by the Free
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Software Foundation; either version 1, or (at your option) any
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later version, or
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b) the "Artistic License" which comes with this Kit.
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This is the B<"GNU General Public License, version 1">.
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It's here so that modules, programs, etc., that want to declare
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this as their distribution license can link to it.
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For the Perl Artistic License, see L<perlartistic>.
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=cut
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# Because the following document's language disallows "changing"
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# it, we haven't gone thru and prettied it up with =item's or
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# anything. It's good enough the way it is.
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=head1 GNU GENERAL PUBLIC LICENSE
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GNU GENERAL PUBLIC LICENSE
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Version 1, February 1989
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Copyright (C) 1989 Free Software Foundation, Inc.
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51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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Preamble
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The license agreements of most software companies try to keep users
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at the mercy of those companies. By contrast, our General Public
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License is intended to guarantee your freedom to share and change free
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software--to make sure the software is free for all its users. The
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General Public License applies to the Free Software Foundation's
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software and to any other program whose authors commit to using it.
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You can use it for your programs, too.
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When we speak of free software, we are referring to freedom, not
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price. Specifically, the General Public License is designed to make
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sure that you have the freedom to give away or sell copies of free
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software, that you receive source code or can get it if you want it,
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that you can change the software or use pieces of it in new free
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programs; and that you know you can do these things.
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To protect your rights, we need to make restrictions that forbid
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anyone to deny you these rights or to ask you to surrender the rights.
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These restrictions translate to certain responsibilities for you if you
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distribute copies of the software, or if you modify it.
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For example, if you distribute copies of a such a program, whether
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gratis or for a fee, you must give the recipients all the rights that
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you have. You must make sure that they, too, receive or can get the
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source code. And you must tell them their rights.
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We protect your rights with two steps: (1) copyright the software,
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and (2) offer you this license which gives you legal permission to
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copy, distribute and/or modify the software.
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Also, for each author's protection and ours, we want to make certain
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that everyone understands that there is no warranty for this free
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software. If the software is modified by someone else and passed on,
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we want its recipients to know that what they have is not the original,
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so that any problems introduced by others will not reflect on the
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original authors' reputations.
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The precise terms and conditions for copying, distribution and
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modification follow.
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GNU GENERAL PUBLIC LICENSE
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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0. This License Agreement applies to any program or other work which
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contains a notice placed by the copyright holder saying it may be
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distributed under the terms of this General Public License. The
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"Program", below, refers to any such program or work, and a "work based
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on the Program" means either the Program or any work containing the
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Program or a portion of it, either verbatim or with modifications.
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Each licensee is addressed as "you".
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1. You may copy and distribute verbatim copies of the Program's
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source code as you receive it, in any medium, provided that you
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conspicuously and appropriately publish on each copy an appropriate
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copyright notice and disclaimer of warranty; keep intact all the
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notices that refer to this General Public License and to the absence of
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any warranty; and give any other recipients of the Program a copy of
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this General Public License along with the Program. You may charge a
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fee for the physical act of transferring a copy.
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2. You may modify your copy or copies of the Program or any portion
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of it, and copy and distribute such modifications under the terms of
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Paragraph 1 above, provided that you also do the following:
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a) cause the modified files to carry prominent notices stating that
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you changed the files and the date of any change; and
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b) cause the whole of any work that you distribute or publish, that
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in whole or in part contains the Program or any part thereof,
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either with or without modifications, to be licensed at no charge
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to all third parties under the terms of this General Public License
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(except that you may choose to grant warranty protection to some or
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all third parties, at your option).
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c) If the modified program normally reads commands interactively
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when run, you must cause it, when started running for such
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interactive use in the simplest and most usual way, to print or
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display an announcement including an appropriate copyright notice
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and a notice that there is no warranty (or else, saying that you
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provide a warranty) and that users may redistribute the program
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under these conditions, and telling the user how to view a copy of
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this General Public License.
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d) You may charge a fee for the physical act of transferring a
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copy, and you may at your option offer warranty protection in
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exchange for a fee.
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Mere aggregation of another independent work with the Program (or its
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derivative) on a volume of a storage or distribution medium does not
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bring the other work under the scope of these terms.
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3. You may copy and distribute the Program (or a portion or
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derivative of it, under Paragraph 2) in object code or executable form
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under the terms of Paragraphs 1 and 2 above provided that you also do
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one of the following:
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a) accompany it with the complete corresponding machine-readable
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source code, which must be distributed under the terms of
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Paragraphs 1 and 2 above; or,
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b) accompany it with a written offer, valid for at least three
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years, to give any third party free (except for a nominal charge
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for the cost of distribution) a complete machine-readable copy of
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the corresponding source code, to be distributed under the terms of
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Paragraphs 1 and 2 above; or,
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c) accompany it with the information you received as to where the
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corresponding source code may be obtained. (This alternative is
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allowed only for noncommercial distribution and only if you
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received the program in object code or executable form alone.)
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Source code for a work means the preferred form of the work for making
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modifications to it. For an executable file, complete source code
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means all the source code for all modules it contains; but, as a
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special exception, it need not include source code for modules which
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are standard libraries that accompany the operating system on which the
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executable file runs, or for standard header files or definitions files
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that accompany that operating system.
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4. You may not copy, modify, sublicense, distribute or transfer the
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Program except as expressly provided under this General Public License.
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Any attempt otherwise to copy, modify, sublicense, distribute or
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transfer the Program is void, and will automatically terminate your
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rights to use the Program under this License. However, parties who
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have received copies, or rights to use copies, from you under this
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General Public License will not have their licenses terminated so long
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as such parties remain in full compliance.
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5. By copying, distributing or modifying the Program (or any work
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based on the Program) you indicate your acceptance of this license to
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do so, and all its terms and conditions.
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6. Each time you redistribute the Program (or any work based on the
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Program), the recipient automatically receives a license from the
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original licensor to copy, distribute or modify the Program subject to
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these terms and conditions. You may not impose any further
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restrictions on the recipients' exercise of the rights granted herein.
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7. The Free Software Foundation may publish revised and/or new
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versions of the 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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specifies a version number of the license which applies to it and "any
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later version", you have the option of following the terms and
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||||
conditions either of that version or of any later version published by
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the Free Software Foundation. If the Program does not specify a
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version number of the license, you may choose any version ever
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published by the Free Software Foundation.
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8. If you wish to incorporate parts of the Program into other free
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programs whose distribution conditions are different, write to the
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author to ask for permission. For software which is copyrighted by the
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Free Software Foundation, write to the Free Software Foundation; we
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sometimes make exceptions for this. Our decision will be guided by the
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two goals of preserving the free status of all derivatives of our free
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software and of promoting the sharing and reuse of software generally.
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NO WARRANTY
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9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO
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WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
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OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND,
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EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS
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WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
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ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
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WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
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AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU
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FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
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CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
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PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
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RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
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FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF
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SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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DAMAGES.
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END OF TERMS AND CONDITIONS
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Appendix: How to Apply These Terms to Your New Programs
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If you develop a new program, and you want it to be of the greatest
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possible use to humanity, the best way to achieve this is to make it
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free software which everyone can redistribute and change under these
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terms.
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To do so, attach the following notices to the program. It is safest
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to attach them to the start of each source file to most effectively
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convey the exclusion of warranty; and each file should have at least
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the "copyright" line and a pointer to where the full notice is found.
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<one line to give the program's name and a brief idea of what it
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does.>
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Copyright (C) 19yy <name of author>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 1, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
|
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
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02110-1301 USA
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Also add information on how to contact you by electronic and paper
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mail.
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If the program is interactive, make it output a short notice like this
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when it starts in an interactive mode:
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Gnomovision version 69, Copyright (C) 19xx name of author
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Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type
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'show w'. This is free software, and you are welcome to
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redistribute it under certain conditions; type 'show c' for
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details.
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The hypothetical commands 'show w' and 'show c' should show the
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appropriate parts of the General Public License. Of course, the
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commands you use may be called something other than 'show w' and 'show
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c'; they could even be mouse-clicks or menu items--whatever suits your
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program.
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You should also get your employer (if you work as a programmer) or your
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school, if any, to sign a "copyright disclaimer" for the program, if
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necessary. Here a sample; alter the names:
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Yoyodyne, Inc., hereby disclaims all copyright interest in the
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program 'Gnomovision' (a program to direct compilers to make passes
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at assemblers) written by James Hacker.
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<signature of Ty Coon>, 1 April 1989
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Ty Coon, President of Vice
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That's all there is to it!
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=cut
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||||
Reference in New Issue
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