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484 lines
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XML
484 lines
21 KiB
XML
<appendix xmlns="http://docbook.org/ns/docbook" xml:id="appendix.gplv2">
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<title>The GNU General Public License, Version Two</title>
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<sect1 xml:id="sect.gplv2.the_gnu_general_public_license__version_two">
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<title>GNU GENERAL PUBLIC LICENSE</title>
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<subtitle>Version 2, June 1991</subtitle>
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<para>
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Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA.
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</para>
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<para>
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Everyone is permitted to copy and distribute verbatim copies of
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this license document, but changing it is not allowed.
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</para>
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<sect2 xml:id="sect.gplv2.preamble">
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<title>Preamble</title>
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<para>
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The licenses for most software are designed to take away your
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freedom to share and change it. By contrast, the GNU General Public
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License is intended to guarantee your freedom to share and change
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free software--to make sure the software is free for all its users.
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This General Public License applies to most of the Free Software
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Foundation's software and to any other program whose authors commit
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to using it. (Some other Free Software Foundation software is
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covered by the GNU Library General Public License instead.)
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You can apply it to your programs, too.
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</para>
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<para>
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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
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you have the freedom to distribute copies of free software (and
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charge for this service if you wish), that you receive source code
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or can get it if you want it, that you can change the software or
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use pieces of it in new free programs; and that you know you can do
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these things.
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</para>
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<para>
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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
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rights. These restrictions translate to certain responsibilities
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for you if you distribute copies of the software, or if you modify
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it.
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</para>
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<para>
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For example, if you distribute copies of such a program, whether
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gratis or for a fee, you must give the recipients all the rights
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that you have. You must make sure that they, too, receive or can
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get the source code. And you must show them these terms so they
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know their rights.
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</para>
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<para>
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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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</para>
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<para>
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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
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on, we want its recipients to know that what they have is not the
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original, so that any problems introduced by others will not reflect
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on the original authors' reputations.
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</para>
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<para>
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Finally, any free program is threatened constantly by software
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patents. We wish to avoid the danger that redistributors of a free
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program will individually obtain patent licenses, in effect making
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the program proprietary. To prevent this, we have made it clear
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that any patent must be licensed for everyone's free use or not
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licensed at all.
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</para>
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<para>
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The precise terms and conditions for copying, distribution and
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modification follow.
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</para>
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</sect2>
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<sect2 xml:id="sect.gplv2.gnu_general_public_license">
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<title>GNU GENERAL PUBLIC LICENSE</title>
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<subtitle>TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND
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MODIFICATION</subtitle>
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<orderedlist startingnumber="0" numeration="arabic">
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<listitem>
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<para>
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This License applies to any program or other work which contains
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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,
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and a "work based on the Program" means either the
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Program or any derivative work under copyright law: that is to
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say, a work containing the Program or a portion of it, either
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verbatim or with modifications and/or translated into another
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language. (Hereinafter, translation is included without
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limitation in the term "modification".) Each licensee
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is addressed as "you".
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</para>
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<para>
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Activities other than copying, distribution and modification are
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not covered by this License; they are outside its scope. The act
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of running the Program is not restricted, and the output from
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the Program is covered only if its contents constitute a work
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based on the Program (independent of having been made by running
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the Program). Whether that is true depends on what the Program
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does.
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</para>
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</listitem>
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<listitem>
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<para>
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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
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appropriate copyright notice and disclaimer of warranty; keep
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intact all the notices that refer to this License and to the
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absence of any warranty; and give any other recipients of the
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Program a copy of this License along with the Program.
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</para>
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<para>
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You may charge a fee for the physical act of transferring a copy,
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and you may at your option offer warranty protection in exchange
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for a fee.
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</para>
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</listitem>
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<listitem>
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<para>
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You may modify your copy or copies of the Program or any portion
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of it, thus forming a work based on the Program, and copy and
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distribute such modifications or work under the terms of Section
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1 above, provided that you also meet all of these conditions:
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</para>
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<orderedlist startingnumber="1" numeration="loweralpha">
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<listitem>
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<para>
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You must cause the modified files to carry prominent notices
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stating that you changed the files and the date of any change.
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</para>
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</listitem>
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<listitem>
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<para>
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You must cause any work that you distribute or publish, that
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in whole or in part contains or is derived from the Program
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or any part thereof, to be licensed as a whole at no charge
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to all third parties under the terms of this License.
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</para>
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</listitem>
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<listitem>
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<para>
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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 most ordinary way, to print or display
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an announcement including an appropriate copyright notice and a
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notice that there is no warranty (or else, saying that you
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provide a warranty) and that users may redistribute the
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program under these conditions, and telling the user how to
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view a copy of this License. (Exception: if the Program
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itself is interactive but does not normally print such an
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announcement, your work based on the Program is not required
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to print an announcement.)
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</para>
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<para>
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These requirements apply to the modified work as a whole. If
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identifiable sections of that work are not derived from the
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Program, and can be reasonably considered independent and
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separate works in themselves, then this License, and its
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terms, do not apply to those sections when you distribute
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them as separate works. But when you distribute the same
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sections as part of a whole which is a work based on the
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Program, the distribution of the whole must be on the terms
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of this License, whose permissions for other licensees extend
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to the entire whole, and thus to each and every part
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regardless of who wrote it.
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</para>
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<para>
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Thus, it is not the intent of this section to claim rights
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or contest your rights to work written entirely by you;
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rather, the intent is to exercise the right to control the
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distribution of derivative or collective works based on the
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Program.
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</para>
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<para>
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In addition, mere aggregation of another work not based on
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the Program with the Program (or with a work based on the
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Program) on a volume of a storage or distribution medium
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does not bring the other work under the scope of this License.
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</para>
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</listitem>
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</orderedlist>
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</listitem>
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<listitem>
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<para>
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You may copy and distribute the Program (or a work based on it,
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under Section 2) in object code or executable form under the
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terms of Sections 1 and 2 above provided that you also do one
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of the following:
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</para>
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<orderedlist startingnumber="1" numeration="loweralpha">
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<listitem>
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<para>
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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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Sections 1 and 2 above on a medium customarily used for
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software interchange; or,
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</para>
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</listitem>
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<listitem>
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<para>
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Accompany it with a written offer, valid for at least three
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years, to give any third party, for a charge no more than your
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cost of physically performing source distribution, a complete
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machine-readable copy of the corresponding source code, to be
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distributed under the terms of Sections 1 and 2 above on a
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medium customarily used for software interchange; or,
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</para>
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</listitem>
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<listitem>
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<para>
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Accompany it with the information you received as to the offer
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to distribute corresponding source code. (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 with such
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an offer, in accord with Subsection b above.)
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</para>
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</listitem>
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</orderedlist>
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<para>
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The source code for a work means the preferred form of the work
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for making modifications to it. For an executable work, complete
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source code means all the source code for all modules it
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contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable.
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However, as a special exception, the source code distributed
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need not include anything that is normally distributed (in
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either source or binary form) with the major components
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(compiler, kernel, and so on) of the operating system on which
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the executable runs, unless that component itself accompanies
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the executable.
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</para>
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<para>
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If distribution of executable or object code is made by offering
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access to copy from a designated place, then offering equivalent
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access to copy the source code from the same place counts as
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distribution of the source code, even though third parties are not
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compelled to copy the source along with the object code.
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</para>
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</listitem>
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<listitem>
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<para>
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You may not copy, modify, sublicense, or distribute the Program
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except as expressly provided under this License. Any attempt
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otherwise to copy, modify, sublicense or distribute the Program
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is void, and will automatically terminate your rights under this
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License. However, parties who have received copies, or rights,
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from you under this License will not have their licenses
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terminated so long as such parties remain in full compliance.
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</para>
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</listitem>
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<listitem>
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<para>
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You are not required to accept this License, since you have not
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signed it. However, nothing else grants you permission to
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modify or distribute the Program or its derivative works. These
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actions are prohibited by law if you do not accept this License.
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Therefore, by modifying or distributing the Program (or any work
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based on the Program), you indicate your acceptance of this
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License to do so, and all its terms and conditions for copying,
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distributing or modifying the Program or works based on it.
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</para>
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</listitem>
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<listitem>
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<para>
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Each time you redistribute the Program (or any work based on the
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Program), the recipient automatically receives a license from
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the original licensor to copy, distribute or modify the Program
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subject to these terms and conditions. You may not impose any
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further restrictions on the recipients' exercise of the rights
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granted herein. You are not responsible for enforcing compliance
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by third parties to this License.
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</para>
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</listitem>
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<listitem>
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<para>
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If, as a consequence of a court judgment or allegation of patent
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infringement or for any other reason (not limited to patent
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issues), conditions are imposed on you (whether by court order,
|
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agreement or otherwise) that contradict the conditions of this
|
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License, they do not excuse you from the conditions of this
|
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License. If you cannot distribute so as to satisfy
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simultaneously your obligations under this License and any other
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pertinent obligations, then as a consequence you may not
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distribute the Program at all. For example, if a patent license
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would not permit royalty-free redistribution of the Program by
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all those who receive copies directly or indirectly through you,
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then the only way you could satisfy both it and this License
|
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would be to refrain entirely from distribution of the Program.
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</para>
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<para>
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If any portion of this section is held invalid or unenforceable
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under any particular circumstance, the balance of the section is
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intended to apply and the section as a whole is intended to
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apply in other circumstances.
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</para>
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<para>
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It is not the purpose of this section to induce you to infringe
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any patents or other property right claims or to contest
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validity of any such claims; this section has the sole purpose
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of protecting the integrity of the free software distribution
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system, which is implemented by public license practices. Many
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people have made generous contributions to the wide range of
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software distributed through that system in reliance on
|
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consistent application of that system; it is up to the
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author/donor to decide if he or she is willing to distribute
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software through any other system and a licensee cannot impose
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that choice.
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</para>
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<para>
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This section is intended to make thoroughly clear what is
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believed to be a consequence of the rest of this License.
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</para>
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</listitem>
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<listitem>
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<para>
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If the distribution and/or use of the Program is restricted in
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certain countries either by patents or by copyrighted interfaces,
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the original copyright holder who places the Program under this
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License may add an explicit geographical distribution limitation
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excluding those countries, so that distribution is permitted only
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in or among countries not thus excluded. In such case, this
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License incorporates the limitation as if written in the body of
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this License.
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</para>
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</listitem>
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<listitem>
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<para>
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The Free Software Foundation may publish revised and/or new
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versions of the General Public License from time to time.
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Such new versions will be similar in spirit to the present
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version, but may differ in detail to address new problems or
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concerns.
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</para>
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<para>
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Each version is given a distinguishing version number. If the
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Program specifies a version number of this License which applies
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to it and "any later version", you have the option of following
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the terms and conditions either of that version or of any later
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version published by the Free Software Foundation. If the
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Program does not specify a version number of this License, you
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may choose any version ever published by the Free Software
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Foundation.
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</para>
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</listitem>
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<listitem>
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<para>
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If you wish to incorporate parts of the Program into other free
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programs whose distribution conditions are different, write to
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the author to ask for permission. For software which is
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copyrighted by the Free Software Foundation, write to the Free
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Software Foundation; we sometimes make exceptions for this. Our
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decision will be guided by the two goals of preserving the free
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status of all derivatives of our free software and of promoting
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the sharing and reuse of software generally.
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</para>
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</listitem>
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</orderedlist>
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</sect2>
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<sect2 xml:id="sect.gplv2.no_warranty">
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<title>NO WARRANTY</title>
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<orderedlist startingnumber="11" numeration="arabic">
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<listitem>
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<para>
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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
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LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
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HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
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WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE
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RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
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SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
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NECESSARY SERVICING, REPAIR OR CORRECTION.
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</para>
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</listitem>
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<listitem>
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<para>
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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
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MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE
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LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
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INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
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INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS
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OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
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YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH
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ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
|
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</para>
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</listitem>
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</orderedlist>
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</sect2>
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<sect2 xml:id="sect.gplv2.end_of_terms_and_conditions">
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<title>END OF TERMS AND CONDITIONS</title>
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</sect2>
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</sect1>
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<sect1 xml:id="sect.gplv2.how_to_apply_these_terms_to_your_new_programs">
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<title>How to Apply These Terms to Your New Programs</title>
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<para>
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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 the public, the best way to achieve this is to make
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it free software which everyone can redistribute and change under
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these terms.
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</para>
|
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<para>
|
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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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</para>
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<sect2 xml:id="sect.gplv2.example">
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<para>
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<literallayout>
|
|
<one line to give the program's name and a brief idea of what it does.>
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Copyright (C) <year> <name of author>
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</literallayout>
|
|
</para>
|
|
<para>
|
|
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.
|
|
</para>
|
|
<para>
|
|
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.
|
|
</para>
|
|
<para>
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA
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</para>
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</sect2>
|
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<para>
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Also add information on how to contact you by electronic and paper mail.
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|
</para>
|
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<para>
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If the program is interactive, make it output a short notice like this
|
|
when it starts in an interactive mode:
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</para>
|
|
<para>
|
|
<literallayout>
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|
Gnomovision version 69, Copyright (C) year name of author
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|
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
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This is free software, and you are welcome to redistribute it
|
|
under certain conditions; type `show c' for details.
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|
</literallayout>
|
|
</para>
|
|
<para>
|
|
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
|
|
commands you use may be called something other than `show w' and
|
|
`show c'; they could even be mouse-clicks or menu items --whatever
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suits your program.
|
|
</para>
|
|
<para>
|
|
You should also get your employer (if you work as a programmer) or
|
|
your school, if any, to sign a "copyright disclaimer" for the program,
|
|
if necessary. Here is a sample; alter the names:
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</para>
|
|
<sect2 xml:id="sect.gplv2.example2">
|
|
<para>
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|
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
|
`Gnomovision' (which makes passes at compilers) written by James Hacker.
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</para>
|
|
<literallayout>
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|
<signature of Ty Coon>, 1 April 1989
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|
Ty Coon, President of Vice
|
|
</literallayout>
|
|
</sect2>
|
|
<para>
|
|
This General Public License does not permit incorporating your
|
|
program into proprietary programs. If your program is a subroutine
|
|
library, you may consider it more useful to permit linking proprietary
|
|
applications with the library. If this is what you want to do, use
|
|
the GNU Library General Public License instead of this License.
|
|
</para>
|
|
</sect1>
|
|
</appendix>
|