| <appendix id="licenses-gpl" xreflabel="GNU General Public License"> |
| |
| <title>GNU General Public License</title> |
| |
| <para>Version 2, June 1991</para> |
| |
| <para>Copyright © 1989, 1991 Free Software Foundation, Inc. |
| 675 Mass Ave, Cambridge, MA 02139, USA</para> |
| |
| <para>Everyone is permitted to copy and distribute verbatim copies |
| of this license document, but changing it is not allowed.</para> |
| |
| <sect1 id="licenses-gpl-0" xreflabel="Preamble"> |
| |
| <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="licenses-gpl-1"> |
| |
| <title>Terms and Conditions for Copying, Distribution and Modification</title> |
| |
| <sect2 id="licenses-gpl-1-1" xreflabel="Section 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="licenses-gpl-1-2" xreflabel="Section 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 <xref linkend="licenses-gpl-1-1" |
| /> above, provided that you also meet all of these |
| conditions:</para> |
| |
| <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>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="licenses-gpl-1-3" xreflabel="Section 3"> |
| |
| <title>Section 3</title> |
| |
| <para>You may copy and distribute the Program (or a work |
| based on it, under <xref linkend="licenses-gpl-1-2" />) in |
| object code or executable form under the terms of <xref |
| linkend="licenses-gpl-1-1" /> and <xref |
| linkend="licenses-gpl-1-2" /> 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 <xref |
| linkend="licenses-gpl-1-1" /> and <xref |
| linkend="licenses-gpl-1-2" /> 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 <xref |
| linkend="licenses-gpl-1-1" /> and <xref |
| linkend="licenses-gpl-1-2" /> 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="licenses-gpl-1-4" xreflabel="Section 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="licenses-gpl-1-5" xreflabel="Section 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="licenses-gpl-1-6" xreflabel="Section 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="licenses-gpl-1-7" xreflabel="Section 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="licenses-gpl-1-8" xreflabel="Section 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="licenses-gpl-1-9" xreflabel="Section 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="licenses-gpl-1-10" xreflabel="Section 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="licenses-gpl-1-11" xreflabel="NO WARRANTY"> |
| |
| <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="licenses-gpl-1-12" xreflabel="Section 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> |
| |
| <para><emphasis>End of Terms and Conditions.</emphasis></para> |
| |
| </sect2> |
| |
| </sect1> |
| |
| <sect1 id="licenses-gpl-2" xreflabel="How to Apply These Terms to Your New Programs"> |
| |
| <title>How to Apply These Terms to Your New Programs</title> |
| |
| <para>If you develop a new program, and you want it to be of |
| the greatest possible use to the public, the best way to |
| achieve this is to make it free software which everyone can |
| redistribute and change under these terms.</para> |
| |
| <para>To do so, attach the following notices to the program. |
| It is safest to attach them to the start of each source file |
| to most effectively convey the exclusion of warranty; and each |
| file should have at least the <quote>copyright</quote> line |
| and a pointer to where the full notice is found.</para> |
| |
| <programlisting> |
| <one line to give the program's name and a brief idea of what it does.> |
| Copyright (C) 19yy <name of author> |
| |
| 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. |
| |
| 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. |
| |
| 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| </programlisting> |
| |
| <para>Also add information on how to contact you by electronic |
| and paper mail.</para> |
| |
| <para>If the program is interactive, make it output a short |
| notice like this when it starts in an interactive mode:</para> |
| |
| <programlisting> |
| Gnomovision version 69, Copyright (C) 19yy name of author |
| Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. |
| This is free software, and you are welcome to redistribute it |
| under certain conditions; type `show c' for details. |
| </programlisting> |
| |
| <para>The hypothetical commands `show w' and `show c' should |
| show the 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 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 <quote>copyright |
| disclaimer</quote> for the program, if necessary. Here is a |
| sample; alter the names:</para> |
| |
| <programlisting> |
| Yoyodyne, Inc., hereby disclaims all copyright interest in the program |
| `Gnomovision' (which makes passes at compilers) written by James Hacker. |
| |
| <signature of Ty Coon>, 1 April 1989 |
| Ty Coon, President of Vice |
| </programlisting> |
| |
| <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> |