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The GNU General Public License {#the-gnu-general-public-license .chapter} +================================= + +Version 3, 29 June 2007 + ++--------------------------------------+--------------------------------------+ +| | ``` {.display} | +| | Copyright © 2007 Free Software Found | +| | ation, Inc. http://fsf.org/ | +| | 51 Franklin St., Floor 5, Boston, MA | +| | 02110-1335, USA | +| | | +| | Everyone is permitted to copy and di | +| | stribute verbatim copies of this lic | +| | ense document, but changing it is no | +| | t allowed. | +| | ``` | ++--------------------------------------+--------------------------------------+ + +Preamble {#preamble .heading} +-------- + +The GNU General Public License is a free, copyleft license for software +and other kinds of works. + +The licenses for most software and other practical works are designed to +take away your freedom to share and change the works. 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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. 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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. + ++--------------------------------------+--------------------------------------+ +| | ``` {.smallexample} | +| | one line to give the program's name | +| | and a brief idea of what it does. | +| | Copyright (C) year name of author | +| | | +| | This program is free software: you c | +| | an redistribute it and/or modify | +| | it under the terms of the GNU Genera | +| | l 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 h | +| | ope that it will be useful, but | +| | WITHOUT ANY WARRANTY; without even t | +| | he implied warranty of | +| | MERCHANTABILITY or FITNESS FOR A PAR | +| | TICULAR PURPOSE. See the GNU | +| | General Public License for more deta | +| | ils. | +| | | +| | You should have received a copy of t | +| | he GNU General Public License | +| | along with this program. If not, se | +| | e http://www.gnu.org/licenses/. | +| | ``` | ++--------------------------------------+--------------------------------------+ + +Also add information on how to contact you by electronic and paper mail. + +If the program does terminal interaction, make it output a short notice +like this when it starts in an interactive mode: + ++--------------------------------------+--------------------------------------+ +| | ``` {.smallexample} | +| | program Copyright (C) year name of a | +| | uthor | +| | This program comes with ABSOLUTELY N | +| | O WARRANTY; | +| | for details type ‘show w’. This is | +| | free software, | +| | and you are welcome to redistribute | +| | it under | +| | certain conditions; type ‘show c’ fo | +| | r details. | +| | ``` | ++--------------------------------------+--------------------------------------+ + +The hypothetical commands ‘show w’ and ‘show c’ 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”. + +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 <http://www.gnu.org/licenses/>. + +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 <http://www.gnu.org/philosophy/why-not-lgpl.html>. + +------------------------------------------------------------------------ + +This document was generated by *tonghuix* on *March 25, 2016* using +[*texi2html 1.82*](http://www.nongnu.org/texi2html/).\ |