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| Next: <a href="GNU-Free-Documentation-License.html#GNU-Free-Documentation-License" accesskey="n" rel="next">GNU Free Documentation License</a>, Previous: <a href="Contributing.html#Contributing" accesskey="p" rel="prev">Contributing</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> |
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| <a name="GNU-General-Public-License"></a> |
| <h2 class="unnumbered">GNU General Public License</h2> |
| <div align="center">Version 3, 29 June 2007 |
| </div> |
| |
| <div class="display"> |
| <pre class="display">Copyright © 2007 Free Software Foundation, Inc. <a href="http://fsf.org/">http://fsf.org/</a> |
| |
| Everyone is permitted to copy and distribute verbatim copies of this |
| license document, but changing it is not allowed. |
| </pre></div> |
| |
| <a name="Preamble"></a> |
| <h3 class="heading">Preamble</h3> |
| |
| <p>The GNU General Public License is a free, copyleft license for |
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| <p>The licenses for most software and other practical works are designed |
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| for enforcing compliance by third parties with this License. |
| </p> |
| <p>An “entity transaction” is a transaction transferring control of an |
| organization, or substantially all assets of one, or subdividing an |
| organization, or merging organizations. If propagation of a covered |
| work results from an entity transaction, each party to that |
| transaction who receives a copy of the work also receives whatever |
| licenses to the work the party’s predecessor in interest had or could |
| give under the previous paragraph, plus a right to possession of the |
| Corresponding Source of the work from the predecessor in interest, if |
| the predecessor has it or can get it with reasonable efforts. |
| </p> |
| <p>You may not impose any further restrictions on the exercise of the |
| rights granted or affirmed under this License. For example, you may |
| not impose a license fee, royalty, or other charge for exercise of |
| rights granted under this License, and you may not initiate litigation |
| (including a cross-claim or counterclaim in a lawsuit) alleging that |
| any patent claim is infringed by making, using, selling, offering for |
| sale, or importing the Program or any portion of it. |
| </p> |
| </li><li> Patents. |
| |
| <p>A “contributor” is a copyright holder who authorizes use under this |
| License of the Program or a work on which the Program is based. The |
| work thus licensed is called the contributor’s “contributor version”. |
| </p> |
| <p>A contributor’s “essential patent claims” are all patent claims owned |
| or controlled by the contributor, whether already acquired or |
| hereafter acquired, that would be infringed by some manner, permitted |
| by this License, of making, using, or selling its contributor version, |
| but do not include claims that would be infringed only as a |
| consequence of further modification of the contributor version. For |
| purposes of this definition, “control” includes the right to grant |
| patent sublicenses in a manner consistent with the requirements of |
| this License. |
| </p> |
| <p>Each contributor grants you a non-exclusive, worldwide, royalty-free |
| patent license under the contributor’s essential patent claims, to |
| make, use, sell, offer for sale, import and otherwise run, modify and |
| propagate the contents of its contributor version. |
| </p> |
| <p>In the following three paragraphs, a “patent license” is any express |
| agreement or commitment, however denominated, not to enforce a patent |
| (such as an express permission to practice a patent or covenant not to |
| sue for patent infringement). To “grant” such a patent license to a |
| party means to make such an agreement or commitment not to enforce a |
| patent against the party. |
| </p> |
| <p>If you convey a covered work, knowingly relying on a patent license, |
| and the Corresponding Source of the work is not available for anyone |
| to copy, free of charge and under the terms of this License, through a |
| publicly available network server or other readily accessible means, |
| then you must either (1) cause the Corresponding Source to be so |
| available, or (2) arrange to deprive yourself of the benefit of the |
| patent license for this particular work, or (3) arrange, in a manner |
| consistent with the requirements of this License, to extend the patent |
| license to downstream recipients. “Knowingly relying” means you have |
| actual knowledge that, but for the patent license, your conveying the |
| covered work in a country, or your recipient’s use of the covered work |
| in a country, would infringe one or more identifiable patents in that |
| country that you have reason to believe are valid. |
| </p> |
| <p>If, pursuant to or in connection with a single transaction or |
| arrangement, you convey, or propagate by procuring conveyance of, a |
| covered work, and grant a patent license to some of the parties |
| receiving the covered work authorizing them to use, propagate, modify |
| or convey a specific copy of the covered work, then the patent license |
| you grant is automatically extended to all recipients of the covered |
| work and works based on it. |
| </p> |
| <p>A patent license is “discriminatory” if it does not include within the |
| scope of its coverage, prohibits the exercise of, or is conditioned on |
| the non-exercise of one or more of the rights that are specifically |
| granted under this License. You may not convey a covered work if you |
| are a party to an arrangement with a third party that is in the |
| business of distributing software, under which you make payment to the |
| third party based on the extent of your activity of conveying the |
| work, and under which the third party grants, to any of the parties |
| who would receive the covered work from you, a discriminatory patent |
| license (a) in connection with copies of the covered work conveyed by |
| you (or copies made from those copies), or (b) primarily for and in |
| connection with specific products or compilations that contain the |
| covered work, unless you entered into that arrangement, or that patent |
| license was granted, prior to 28 March 2007. |
| </p> |
| <p>Nothing in this License shall be construed as excluding or limiting |
| any implied license or other defenses to infringement that may |
| otherwise be available to you under applicable patent law. |
| </p> |
| </li><li> No Surrender of Others’ Freedom. |
| |
| <p>If 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 convey |
| a covered work so as to satisfy simultaneously your obligations under |
| this License and any other pertinent obligations, then as a |
| consequence you may not convey it at all. For example, if you agree |
| to terms that obligate you to collect a royalty for further conveying |
| from those to whom you convey the Program, the only way you could |
| satisfy both those terms and this License would be to refrain entirely |
| from conveying the Program. |
| </p> |
| </li><li> Use with the GNU Affero General Public License. |
| |
| <p>Notwithstanding any other provision of this License, you have |
| permission to link or combine any covered work with a work licensed |
| under version 3 of the GNU Affero General Public License into a single |
| combined work, and to convey the resulting work. The terms of this |
| License will continue to apply to the part which is the covered work, |
| but the special requirements of the GNU Affero General Public License, |
| section 13, concerning interaction through a network will apply to the |
| combination as such. |
| </p> |
| </li><li> Revised Versions of this License. |
| |
| <p>The Free Software Foundation may publish revised and/or new versions |
| of the GNU 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. |
| </p> |
| <p>Each version is given a distinguishing version number. If the Program |
| specifies that a certain numbered version of the GNU General Public |
| License “or any later version” applies to it, you have the option of |
| following the terms and conditions either of that numbered version or |
| of any later version published by the Free Software Foundation. If |
| the Program does not specify a version number of the GNU General |
| Public License, you may choose any version ever published by the Free |
| Software Foundation. |
| </p> |
| <p>If the Program specifies that a proxy can decide which future versions |
| of the GNU General Public License can be used, that proxy’s public |
| statement of acceptance of a version permanently authorizes you to |
| choose that version for the Program. |
| </p> |
| <p>Later license versions may give you additional or different |
| permissions. However, no additional obligations are imposed on any |
| author or copyright holder as a result of your choosing to follow a |
| later version. |
| </p> |
| </li><li> Disclaimer of Warranty. |
| |
| <p>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 “AS IS” 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. |
| </p> |
| </li><li> Limitation of Liability. |
| |
| <p>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING |
| WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR |
| CONVEYS 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. |
| </p> |
| </li><li> Interpretation of Sections 15 and 16. |
| |
| <p>If the disclaimer of warranty and limitation of liability provided |
| above cannot be given local legal effect according to their terms, |
| reviewing courts shall apply local law that most closely approximates |
| an absolute waiver of all civil liability in connection with the |
| Program, unless a warranty or assumption of liability accompanies a |
| copy of the Program in return for a fee. |
| </p> |
| </li></ol> |
| |
| <a name="END-OF-TERMS-AND-CONDITIONS"></a> |
| <h3 class="heading">END OF TERMS AND CONDITIONS</h3> |
| |
| <a name="How-to-Apply-These-Terms-to-Your-New-Programs"></a> |
| <h3 class="heading">How to Apply These Terms to Your New Programs</h3> |
| |
| <p>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. |
| </p> |
| <p>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 |
| state the exclusion of warranty; and each file should have at least |
| the “copyright” line and a pointer to where the full notice is found. |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample"><var>one line to give the program's name and a brief idea of what it does.</var> |
| Copyright (C) <var>year</var> <var>name of author</var> |
| |
| 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 3 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, see <a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>. |
| </pre></div> |
| |
| <p>Also add information on how to contact you by electronic and paper mail. |
| </p> |
| <p>If the program does terminal interaction, make it output a short |
| notice like this when it starts in an interactive mode: |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample"><var>program</var> Copyright (C) <var>year</var> <var>name of author</var> |
| This program comes with ABSOLUTELY NO WARRANTY; for details type ‘<samp>show w</samp>’. |
| This is free software, and you are welcome to redistribute it |
| under certain conditions; type ‘<samp>show c</samp>’ for details. |
| </pre></div> |
| |
| <p>The hypothetical commands ‘<samp>show w</samp>’ and ‘<samp>show c</samp>’ should show |
| the appropriate parts of the General Public License. Of course, your |
| program’s commands might be different; for a GUI interface, you would |
| use an “about box”. |
| </p> |
| <p>You should also get your employer (if you work as a programmer) or school, |
| if any, to sign a “copyright disclaimer” for the program, if necessary. |
| For more information on this, and how to apply and follow the GNU GPL, see |
| <a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>. |
| </p> |
| <p>The GNU 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 Lesser General Public License instead of this License. But |
| first, please read <a href="http://www.gnu.org/philosophy/why-not-lgpl.html">http://www.gnu.org/philosophy/why-not-lgpl.html</a>. |
| </p> |
| |
| |
| |
| <hr> |
| <div class="header"> |
| <p> |
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