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+<?xml version="1.0"?>
+<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
+]>
+
+<!--
+ The GNU Public License 2 in DocBook
+ Markup by Eric Baudais <[email protected]>
+ Maintained by the MATE Documentation Project
+ http://developer.gnome.org/projects/gdp
+ Version: 1.0.1
+ Last Modified: Dec 16, 2000
+-->
+
+<article id="index">
+ <articleinfo>
+ <title>GNU General Public License</title>
+ <copyright>
+ <year>2000</year>
+ <holder>Free Software Foundation, Inc.</holder>
+ </copyright>
+
+ <author>
+ <surname>Free Software Foundation</surname>
+ </author>
+
+ <publisher role="maintainer">
+ <publishername>MATE Documentation Project</publishername>
+ </publisher>
+
+ <revhistory>
+ <revision>
+ <revnumber>2</revnumber>
+ <date>1991-06</date>
+ </revision>
+ </revhistory>
+
+ <legalnotice id="legalnotice">
+ <para>
+ <address>Free Software Foundation, Inc.
+ <street>51 Franklin Street, Fifth Floor</street>,
+ <city>Boston</city>,
+ <state>MA</state> <postcode>02110-1301</postcode>
+ <country>USA</country>
+ </address>.
+ </para>
+
+ <para>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+ </para>
+ </legalnotice>
+
+ <releaseinfo>
+ Version 2, June 1991
+ </releaseinfo>
+
+ <abstract role="description"><para>
+ The licenses for most software are designed to take away your
+ freedom to share and change it. By contrast, the GNU General Public
+ License is intended to guarantee your freedom to share and change
+ free software - to make sure the software is free for all its users.
+ </para></abstract>
+ </articleinfo>
+
+ <sect1 id="preamble" label="none">
+ <title>Preamble</title>
+
+ <para>
+ The licenses for most software are designed to take away your
+ freedom to share and change it. By contrast, the GNU General Public
+ License is intended to guarantee your freedom to share and change
+ free software - to make sure the software is free for all its users.
+ This General Public License applies to most of the Free Software
+ Foundation's software and to any other program whose authors commit
+ to using it. (Some other Free Software Foundation software is covered
+ by the GNU Library General Public License instead.) You can apply it
+ to your programs, too.
+ </para>
+
+ <para>
+ When we speak of free software, we are referring to freedom, not price.
+ Our General Public Licenses are designed to make sure that you have the
+ freedom to distribute copies of free software (and charge for this
+ service if you wish), that you receive source code or can get it if you
+ want it, that you can change the software or use pieces of it in new free
+ programs; and that you know you can do these things.
+ </para>
+
+ <para>
+ To protect your rights, we need to make restrictions that forbid anyone
+ to deny you these rights or to ask you to surrender the rights. These
+ restrictions translate to certain responsibilities for you if you distribute
+ copies of the software, or if you modify it.
+ </para>
+
+ <para>
+ For example, if you distribute copies of such a program, whether gratis or
+ for a fee, you must give the recipients all the rights that you have. You
+ must make sure that they, too, receive or can get the source code. And you
+ must show them these terms so they know their rights.
+ </para>
+
+ <para>
+ We protect your rights with two steps:
+
+ <orderedlist numeration="arabic">
+ <listitem>
+ <para>
+ copyright the software, and
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ offer you this license which gives you legal permission to copy,
+ distribute and/or modify the software.
+ </para>
+ </listitem>
+ </orderedlist>
+ </para>
+
+ <para>
+ Also, for each author's protection and ours, we want to make certain that
+ everyone understands that there is no warranty for this free software. If
+ the software is modified by someone else and passed on, we want its
+ recipients to know that what they have is not the original, so that any
+ problems introduced by others will not reflect on the original authors'
+ reputations.
+ </para>
+
+ <para>
+ Finally, any free program is threatened constantly by software patents.
+ We wish to avoid the danger that redistributors of a free program will
+ individually obtain patent licenses, in effect making the program
+ proprietary. To prevent this, we have made it clear that any patent must be
+ licensed for everyone's free use or not licensed at all.
+ </para>
+
+ <para>
+ The precise terms and conditions for copying, distribution and modification
+ follow.
+ </para>
+
+ </sect1>
+
+ <sect1 id="terms" label="none">
+ <title>TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</title>
+
+ <sect2 id="sect0" label="0">
+ <title>Section 0</title>
+ <para>
+ This License applies to any program or other work which contains a notice
+ placed by the copyright holder saying it may be distributed under the terms
+ of this General Public License. The <quote>Program</quote>, below, refers to any such
+ program or work, and a <quote>work based on the Program</quote> means either
+ the Program or any derivative work under copyright law: that is to say, a
+ work containing the Program or a portion of it, either verbatim or with
+ modifications and/or translated into another language. (Hereinafter, translation
+ is included without limitation in the term <quote>modification</quote>.) Each
+ licensee is addressed as <quote>you</quote>.
+ </para>
+
+ <para>
+ Activities other than copying, distribution and modification are not covered by
+ this License; they are outside its scope. The act of running the Program is not
+ restricted, and the output from the Program is covered only if its contents
+ constitute a work based on the Program (independent of having been made by running
+ the Program). Whether that is true depends on what the Program does.
+ </para>
+ </sect2>
+
+ <sect2 id="sect1" label="1">
+ <title>Section 1</title>
+ <para>
+ You may copy and distribute verbatim copies of the Program's source code as you
+ receive it, in any medium, provided that you conspicuously and appropriately
+ publish on each copy an appropriate copyright notice and disclaimer of warranty;
+ keep intact all the notices that refer to this License and to the absence of any
+ warranty; and give any other recipients of the Program a copy of this License
+ along with the Program.
+ </para>
+
+ <para>
+ You may charge a fee for the physical act of transferring a copy, and you may at
+ your option offer warranty protection in exchange for a fee.
+ </para>
+ </sect2>
+
+ <sect2 id="sect2" label="2">
+ <title>Section 2</title>
+ <para>
+ You may modify your copy or copies of the Program or any portion of it, thus
+ forming a work based on the Program, and copy and distribute such modifications
+ or work under the terms of <link linkend="sect1">Section 1</link> above, provided
+ that you also meet all of these conditions:
+
+ <orderedlist numeration="loweralpha">
+ <listitem>
+ <para>
+ You must cause the modified files to carry prominent notices stating that
+ you changed the files and the date of any change.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ You must cause any work that you distribute or publish, that in whole or
+ in part contains or is derived from the Program or any part thereof, to be
+ licensed as a whole at no charge to all third parties under the terms of
+ this License.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ If the modified program normally reads commands interactively when run, you
+ must cause it, when started running for such interactive use in the most
+ ordinary way, to print or display an announcement including an appropriate
+ copyright notice and a notice that there is no warranty (or else, saying
+ that you provide a warranty) and that users may redistribute the program
+ under these conditions, and telling the user how to view a copy of this
+ License.
+
+ <note>
+ <title>Exception:</title>
+ <para>
+ If the Program itself is interactive but does not normally print such an
+ announcement, your work based on the Program is not required to print an
+ announcement.
+ </para>
+ </note>
+
+ </para>
+ </listitem>
+ </orderedlist>
+ </para>
+
+ <para>
+ These requirements apply to the modified work as a whole. If identifiable sections
+ of that work are not derived from the Program, and can be reasonably considered
+ independent and separate works in themselves, then this License, and its terms,
+ do not apply to those sections when you distribute them as separate works. But when
+ you distribute the same sections as part of a whole which is a work based on the
+ Program, the distribution of the whole must be on the terms of this License, whose
+ permissions for other licensees extend to the entire whole, and thus to each and
+ every part regardless of who wrote it.
+ </para>
+
+ <para>
+ Thus, it is not the intent of this section to claim rights or contest your rights
+ to work written entirely by you; rather, the intent is to exercise the right to control
+ the distribution of derivative or collective works based on the Program.
+ </para>
+
+ <para>
+ In addition, mere aggregation of another work not based on the Program with the Program
+ (or with a work based on the Program) on a volume of a storage or distribution medium
+ does not bring the other work under the scope of this License.
+ </para>
+ </sect2>
+
+ <sect2 id="sect3" label="3">
+ <title>Section 3</title>
+
+ <para>
+ You may copy and distribute the Program (or a work based on it, under
+ <link linkend="sect2">Section 2</link>) in object code or executable form under the terms of
+ <link linkend="sect1">Sections 1</link> and <link linkend="sect2">2</link> above provided that
+ you also do one of the following:
+
+ <orderedlist numeration="loweralpha">
+ <listitem>
+ <para>
+ Accompany it with the complete corresponding machine-readable source code, which
+ must be distributed under the terms of <link linkend="sect1">Sections 1</link> and <link linkend="sect2">2</link> above on a medium
+ customarily used for software interchange; or,
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Accompany it with a written offer, valid for at least three years, to give any
+ third party, for a charge no more than your cost of physically performing source
+ distribution, a complete machine-readable copy of the corresponding source code,
+ to be distributed under the terms of Sections 1 and 2 above on a medium customarily
+ used for software interchange; or,
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Accompany it with the information you received as to the offer to distribute
+ corresponding source code. (This alternative is allowed only for noncommercial
+ distribution and only if you received the program in object code or executable form
+ with such an offer, in accord with Subsection b above.)
+ </para>
+ </listitem>
+ </orderedlist>
+ </para>
+
+ <para>
+ The source code for a work means the preferred form of the work for making modifications
+ to it. For an executable work, complete source code means all the source code for all modules
+ it contains, plus any associated interface definition files, plus the scripts used to control
+ compilation and installation of the executable. However, as a special exception, the source
+ code distributed need not include anything that is normally distributed (in either source or
+ binary form) with the major components (compiler, kernel, and so on) of the operating system
+ on which the executable runs, unless that component itself accompanies the executable.
+ </para>
+
+ <para>
+ If distribution of executable or object code is made by offering access to copy from a
+ designated place, then offering equivalent access to copy the source code from the same place
+ counts as distribution of the source code, even though third parties are not compelled to
+ copy the source along with the object code.
+ </para>
+ </sect2>
+
+ <sect2 id="sect4" label="4">
+ <title>Section 4</title>
+
+ <para>
+ You may not copy, modify, sublicense, or distribute the Program except as expressly provided
+ under this License. Any attempt otherwise to copy, modify, sublicense or distribute the
+ Program is void, and will automatically terminate your rights under this License. However,
+ parties who have received copies, or rights, from you under this License will not have their
+ licenses terminated so long as such parties remain in full compliance.
+ </para>
+ </sect2>
+
+ <sect2 id="sect5" label="5">
+ <title>Section 5</title>
+
+ <para>
+ You are not required to accept this License, since you have not signed it. However, nothing
+ else grants you permission to modify or distribute the Program or its derivative works.
+ These actions are prohibited by law if you do not accept this License. Therefore, by modifying
+ or distributing the Program (or any work based on the Program), you indicate your acceptance
+ of this License to do so, and all its terms and conditions for copying, distributing or
+ modifying the Program or works based on it.
+ </para>
+ </sect2>
+
+ <sect2 id="sect6" label="6">
+ <title>Section 6</title>
+
+ <para>
+ Each time you redistribute the Program (or any work based on the Program), the recipient
+ automatically receives a license from the original licensor to copy, distribute or modify
+ the Program subject to these terms and conditions. You may not impose any further restrictions
+ on the recipients' exercise of the rights granted herein. You are not responsible for enforcing
+ compliance by third parties to this License.
+ </para>
+ </sect2>
+
+ <sect2 id="sect7" label="7">
+ <title>Section 7</title>
+
+ <para>
+ If, as a consequence of a court judgment or allegation of patent infringement or for any other
+ reason (not limited to patent issues), conditions are imposed on you (whether by court order,
+ agreement or otherwise) that contradict the conditions of this License, they do not excuse you
+ from the conditions of this License. If you cannot distribute so as to satisfy simultaneously
+ your obligations under this License and any other pertinent obligations, then as a consequence
+ you may not distribute the Program at all. For example, if a patent license would not permit
+ royalty-free redistribution of the Program by all those who receive copies directly or
+ indirectly through you, then the only way you could satisfy both it and this License would be
+ to refrain entirely from distribution of the Program.
+ </para>
+
+ <para>
+ If any portion of this section is held invalid or unenforceable under any particular circumstance,
+ the balance of the section is intended to apply and the section as a whole is intended to apply
+ in other circumstances.
+ </para>
+
+ <para>
+ It is not the purpose of this section to induce you to infringe any patents or other property
+ right claims or to contest validity of any such claims; this section has the sole purpose of
+ protecting the integrity of the free software distribution system, which is implemented by public
+ license practices. Many people have made generous contributions to the wide range of software
+ distributed through that system in reliance on consistent application of that system; it is up
+ to the author/donor to decide if he or she is willing to distribute software through any other
+ system and a licensee cannot impose that choice.
+ </para>
+
+ <para>
+ This section is intended to make thoroughly clear what is believed to be a consequence of the
+ rest of this License.
+ </para>
+ </sect2>
+
+ <sect2 id="sect8" label="8">
+ <title>Section 8</title>
+
+ <para>
+ If the distribution and/or use of the Program is restricted in certain countries either by patents
+ or by copyrighted interfaces, the original copyright holder who places the Program under this License
+ may add an explicit geographical distribution limitation excluding those countries, so that
+ distribution is permitted only in or among countries not thus excluded. In such case, this License
+ incorporates the limitation as if written in the body of this License.
+ </para>
+ </sect2>
+
+ <sect2 id="sect9" label="9">
+ <title>Section 9</title>
+
+ <para>
+ The Free Software Foundation may publish revised and/or new versions of the General Public License
+ from time to time. Such new versions will be similar in spirit to the present version, but may differ
+ in detail to address new problems or concerns.
+ </para>
+
+ <para>
+ Each version is given a distinguishing version number. If the Program specifies a version number of
+ this License which applies to it and <quote>any later version</quote>, you have the option of following the terms
+ and conditions either of that version or of any later version published by the Free Software
+ Foundation. If the Program does not specify a version number of this License, you may choose any
+ version ever published by the Free Software Foundation.
+ </para>
+ </sect2>
+
+ <sect2 id="sect10" label="10">
+ <title>Section 10</title>
+
+ <para>
+ If you wish to incorporate parts of the Program into other free programs whose distribution
+ conditions are different, write to the author to ask for permission. For software which is copyrighted
+ by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions
+ for this. Our decision will be guided by the two goals of preserving the free status of all
+ derivatives of our free software and of promoting the sharing and reuse of software generally.
+ </para>
+ </sect2>
+
+ <sect2 id="sect11" label="11">
+ <title>NO WARRANTY</title>
+ <subtitle>Section 11</subtitle>
+
+ <para>
+ BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT
+ PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+ OTHER PARTIES PROVIDE THE PROGRAM <quote>AS IS</quote> WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+ PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+ </para>
+ </sect2>
+
+ <sect2 id="sect12" label="12">
+ <title>Section 12</title>
+
+ <para>
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR
+ ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU
+ FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+ USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
+ INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH
+ ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ DAMAGES.
+ </para>
+ </sect2>
+ </sect1>
+</article>