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GNU GENERAL PUBLIC LICENSE
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Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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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 free
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software--to make sure the software is free for all its users. This
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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 to
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using it. (Some other Free Software Foundation software is covered by
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the GNU Library General Public License instead.) You can apply it to
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GNU GENERAL PUBLIC LICENSE
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Version 3, 29 June 2007
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Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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The GNU General Public License is a free, copyleft license for
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software and other kinds of works.
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The licenses for most software and other practical works are designed
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to take away your freedom to share and change the works. By contrast,
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the GNU General Public License is intended to guarantee your freedom to
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share and change all versions of a program--to make sure it remains free
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software for all its users. We, the Free Software Foundation, use the
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GNU General Public License for most of our software; it applies also to
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any other work released this way by its authors. You can apply it to
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your programs, too.
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When we speak of free software, we are referring to freedom, not
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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 you
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have the freedom to distribute copies of free software (and charge for
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new free programs; and that you know you can do these things.
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To protect your rights, we need to make restrictions that forbid
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These restrictions translate to certain responsibilities for you if you
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distribute copies of the software, or if you modify it.
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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 that
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you have. You must make sure that they, too, receive or can get the
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source code. And you must show them these terms so they know their
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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 copy,
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distribute and/or modify the software.
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Also, for each author's protection and ours, we want to make certain
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Finally, any free program is threatened constantly by software
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The precise terms and conditions for copying, distribution and
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them if you wish), that you receive source code or can get it if you
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want it, that you can change the software or use pieces of it in new
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free programs, and that you know you can do these things.
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To protect your rights, we need to prevent others from denying you
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these rights or asking you to surrender the rights. Therefore, you have
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certain responsibilities if you distribute copies of the software, or if
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you modify it: responsibilities to respect the freedom of others.
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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 pass on to the recipients the same
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freedoms that you received. You must make sure that they, too, receive
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or can get the source code. And you must show them these terms so they
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Developers that use the GNU GPL protect your rights with two steps:
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(1) assert copyright on the software, and (2) offer you this License
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giving you legal permission to copy, distribute and/or modify it.
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authors' sake, the GPL requires that modified versions be marked as
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stand ready to extend this provision to those domains in future versions
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of the GPL, as needed to protect the freedom of users.
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Finally, every program is threatened constantly by software patents.
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States should not allow patents to restrict development and use of
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software on general-purpose computers, but in those that do, we wish to
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avoid the special danger that patents applied to a free program could
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make it effectively proprietary. To prevent this, the GPL assures that
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The precise terms and conditions for copying, distribution and
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modification follow.
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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0. This License applies to any program or other work which contains a
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notice placed by the copyright holder saying it may be distributed
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under the terms of this General Public License. The "Program",
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below, refers to any such program or work, and a "work based on
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the Program" means either the Program or any derivative work under
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copyright law: that is to say, a work containing the Program or a
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portion of it, either verbatim or with modifications and/or
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translated into another language. (Hereinafter, translation is
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included without limitation in the term "modification".) Each
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licensee is addressed as "you".
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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 the
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Program is covered only if its contents constitute a work based on
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the Program (independent of having been made by running the
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Program). Whether that is true depends on what the Program does.
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1. 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 appropriate
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copyright notice and disclaimer of warranty; keep intact all the
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notices that refer to this License and to the absence of any
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warranty; and give any other recipients of the Program a copy of
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this License along with the Program.
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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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2. 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 1
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above, provided that you also meet all of these conditions:
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a. 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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b. 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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c. 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
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a 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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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 separate
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works in themselves, then this License, and its terms, do not
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apply to those sections when you distribute them as separate
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works. But when you distribute the same sections as part of a
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whole which is a work based on the Program, the distribution of
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the whole must be on the terms of this License, whose permissions
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for other licensees extend to the entire whole, and thus to each
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and every part regardless of who wrote it.
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Thus, it is not the intent of this section to claim rights or
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contest your rights to work written entirely by you; rather, the
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intent is to exercise the right to control the distribution of
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derivative or collective works based on the Program.
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In addition, mere aggregation of another work not based on the
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Program with the Program (or with a work based on the Program) on
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a volume of a storage or distribution medium does not bring the
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other work under the scope of this License.
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3. 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 terms
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of Sections 1 and 2 above provided that you also do one of the
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a. 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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b. 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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c. 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
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such an offer, in accord with Subsection b above.)
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The source code for a work means the preferred form of the work for
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making modifications to it. For an executable work, complete
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source code means all the source code for all modules it contains,
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plus any associated interface definition files, plus the scripts
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used to control compilation and installation of the executable.
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However, as a special exception, the source code distributed need
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not include anything that is normally distributed (in either
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source or binary form) with the major components (compiler,
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kernel, and so on) of the operating system on which the executable
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runs, unless that component itself accompanies the executable.
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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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4. 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 is
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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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5. 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 modify
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or distribute the Program or its derivative works. These actions
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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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6. Each time you redistribute the Program (or any work based on the
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Program), the recipient automatically receives a license from the
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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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7. 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 simultaneously
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your obligations under this License and any other pertinent
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obligations, then as a consequence you may not distribute the
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Program at all. For example, if a patent license would not permit
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royalty-free redistribution of the Program by all those who
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receive copies directly or indirectly through you, then the only
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way you could satisfy both it and this License would be to refrain
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entirely from distribution of the Program.
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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 apply
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in other circumstances.
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It is not the purpose of this section to induce you to infringe any
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patents or other property right claims or to contest validity of
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any such claims; this section has the sole purpose of protecting
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the integrity of the free software distribution system, which is
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implemented by public license practices. Many people have made
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generous contributions to the wide range of software distributed
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through that system in reliance on consistent application of that
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system; it is up to the author/donor to decide if he or she is
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willing to distribute software through any other system and a
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licensee cannot impose that choice.
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This section is intended to make thoroughly clear what is believed
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to be a consequence of the rest of this License.
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8. 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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9. The Free Software Foundation may publish revised and/or new
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versions of the General Public License from time to time. Such
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new versions will be similar in spirit to the present version, but
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may differ in detail to address new problems or concerns.
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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 Program
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does not specify a version number of this License, you may choose
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any version ever published by the Free Software Foundation.
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10. If you wish to incorporate parts of the Program into other free
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programs whose distribution conditions are different, write to the
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author to ask for permission. For software which is copyrighted
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by the Free Software Foundation, write to the Free Software
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Foundation; we sometimes make exceptions for this. Our decision
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will be guided by the two goals of preserving the free status of
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all derivatives of our free software and of promoting the sharing
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and reuse of software generally.
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11. 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" WITHOUT
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WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT
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NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE
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QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
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PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY
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SERVICING, REPAIR OR CORRECTION.
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12. 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 OF
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DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU
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OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY
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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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END OF TERMS AND CONDITIONS
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How to Apply These Terms to Your New Programs
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=============================================
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If you develop a new program, and you want it to be of the greatest
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"This License" refers to version 3 of the GNU General Public License.
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"Copyright" also means copyright-like laws that apply to other kinds of
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works, such as semiconductor masks.
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"The Program" refers to any copyrightable work licensed under this
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License. Each licensee is addressed as "you". "Licensees" and
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"recipients" may be individuals or organizations.
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To "modify" a work means to copy from or adapt all or part of the work
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in a fashion requiring copyright permission, other than the making of an
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exact copy. The resulting work is called a "modified version" of the
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earlier work or a work "based on" the earlier work.
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A "covered work" means either the unmodified Program or a work based
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To "propagate" a work means to do anything with it that, without
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permission, would make you directly or secondarily liable for
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infringement under applicable copyright law, except executing it on a
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computer or modifying a private copy. Propagation includes copying,
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distribution (with or without modification), making available to the
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public, and in some countries other activities as well.
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To "convey" a work means any kind of propagation that enables other
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parties to make or receive copies. Mere interaction with a user through
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a computer network, with no transfer of a copy, is not conveying.
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An interactive user interface displays "Appropriate Legal Notices"
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to the extent that it includes a convenient and prominently visible
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feature that (1) displays an appropriate copyright notice, and (2)
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tells the user that there is no warranty for the work (except to the
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extent that warranties are provided), that licensees may convey the
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work under this License, and how to view a copy of this License. If
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the interface presents a list of user commands or options, such as a
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menu, a prominent item in the list meets this criterion.
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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. "Object code" means any non-source
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A "Standard Interface" means an interface that either is an official
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standard defined by a recognized standards body, or, in the case of
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interfaces specified for a particular programming language, one that
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is widely used among developers working in that language.
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The "System Libraries" of an executable work include anything, other
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than the work as a whole, that (a) is included in the normal form of
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packaging a Major Component, but which is not part of that Major
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Component, and (b) serves only to enable use of the work with that
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Major Component, or to implement a Standard Interface for which an
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implementation is available to the public in source code form. A
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"Major Component", in this context, means a major essential component
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(kernel, window system, and so on) of the specific operating system
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(if any) on which the executable work runs, or a compiler used to
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produce the work, or an object code interpreter used to run it.
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The "Corresponding Source" for a work in object code form means all
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the source code needed to generate, install, and (for an executable
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work) run the object code and to modify the work, including scripts to
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control those activities. However, it does not include the work's
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System Libraries, or general-purpose tools or generally available free
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programs which are used unmodified in performing those activities but
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which are not part of the work. For example, Corresponding Source
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includes interface definition files associated with source files for
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the work, and the source code for shared libraries and dynamically
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linked subprograms that the work is specifically designed to require,
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such as by intimate data communication or control flow between those
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subprograms and other parts of the work.
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The Corresponding Source need not include anything that users
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can regenerate automatically from other parts of the Corresponding
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The Corresponding Source for a work in source code form is that
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2. Basic Permissions.
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All rights granted under this License are granted for the term of
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copyright on the Program, and are irrevocable provided the stated
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conditions are met. This License explicitly affirms your unlimited
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permission to run the unmodified Program. The output from running a
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covered work is covered by this License only if the output, given its
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content, constitutes a covered work. This License acknowledges your
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rights of fair use or other equivalent, as provided by copyright law.
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You may make, run and propagate covered works that you do not
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convey, without conditions so long as your license otherwise remains
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in force. You may convey covered works to others for the sole purpose
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of having them make modifications exclusively for you, or provide you
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with facilities for running those works, provided that you comply with
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the terms of this License in conveying all material for which you do
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not control copyright. Those thus making or running the covered works
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for you must do so exclusively on your behalf, under your direction
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and control, on terms that prohibit them from making any copies of
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your copyrighted material outside their relationship with you.
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Conveying under any other circumstances is permitted solely under
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the conditions stated below. Sublicensing is not allowed; section 10
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makes it unnecessary.
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3. Protecting Users' Legal Rights From Anti-Circumvention Law.
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No covered work shall be deemed part of an effective technological
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measure under any applicable law fulfilling obligations under article
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11 of the WIPO copyright treaty adopted on 20 December 1996, or
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similar laws prohibiting or restricting circumvention of such
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When you convey a covered work, you waive any legal power to forbid
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circumvention of technological measures to the extent such circumvention
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is effected by exercising rights under this License with respect to
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the covered work, and you disclaim any intention to limit operation or
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modification of the work as a means of enforcing, against the work's
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users, your or third parties' legal rights to forbid circumvention of
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technological measures.
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4. Conveying Verbatim Copies.
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You may convey verbatim copies of the Program's source code as you
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receive it, in any medium, provided that you conspicuously and
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appropriately publish on each copy an appropriate copyright notice;
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keep intact all notices stating that this License and any
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non-permissive terms added in accord with section 7 apply to the code;
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keep intact all notices of the absence of any warranty; and give all
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recipients a copy of this License along with the Program.
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You may charge any price or no price for each copy that you convey,
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and you may offer support or warranty protection for a fee.
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5. Conveying Modified Source Versions.
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You may convey a work based on the Program, or the modifications to
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produce it from the Program, in the form of source code under the
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terms of section 4, provided that you also meet all of these conditions:
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a) The work must carry prominent notices stating that you modified
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it, and giving a relevant date.
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b) The work must carry prominent notices stating that it is
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released under this License and any conditions added under section
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7. This requirement modifies the requirement in section 4 to
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"keep intact all notices".
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c) You must license the entire work, as a whole, under this
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License to anyone who comes into possession of a copy. This
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License will therefore apply, along with any applicable section 7
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additional terms, to the whole of the work, and all its parts,
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regardless of how they are packaged. This License gives no
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permission to license the work in any other way, but it does not
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invalidate such permission if you have separately received it.
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d) If the work has interactive user interfaces, each must display
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Appropriate Legal Notices; however, if the Program has interactive
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interfaces that do not display Appropriate Legal Notices, your
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work need not make them do so.
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A compilation of a covered work with other separate and independent
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works, which are not by their nature extensions of the covered work,
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and which are not combined with it such as to form a larger program,
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in or on a volume of a storage or distribution medium, is called an
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"aggregate" if the compilation and its resulting copyright are not
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used to limit the access or legal rights of the compilation's users
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beyond what the individual works permit. Inclusion of a covered work
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in an aggregate does not cause this License to apply to the other
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parts of the aggregate.
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6. Conveying Non-Source Forms.
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You may convey a covered work in object code form under the terms
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of sections 4 and 5, provided that you also convey the
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machine-readable Corresponding Source under the terms of this License,
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in one of these ways:
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a) Convey the object code in, or embodied in, a physical product
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(including a physical distribution medium), accompanied by the
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Corresponding Source fixed on a durable physical medium
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customarily used for software interchange.
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b) Convey the object code in, or embodied in, a physical product
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(including a physical distribution medium), accompanied by a
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written offer, valid for at least three years and valid for as
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long as you offer spare parts or customer support for that product
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model, to give anyone who possesses the object code either (1) a
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copy of the Corresponding Source for all the software in the
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product that is covered by this License, on a durable physical
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medium customarily used for software interchange, for a price no
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more than your reasonable cost of physically performing this
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conveying of source, or (2) access to copy the
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Corresponding Source from a network server at no charge.
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c) Convey individual copies of the object code with a copy of the
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written offer to provide the Corresponding Source. This
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alternative is allowed only occasionally and noncommercially, and
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only if you received the object code with such an offer, in accord
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d) Convey the object code by offering access from a designated
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place (gratis or for a charge), and offer equivalent access to the
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Corresponding Source in the same way through the same place at no
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further charge. You need not require recipients to copy the
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Corresponding Source along with the object code. If the place to
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copy the object code is a network server, the Corresponding Source
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may be on a different server (operated by you or a third party)
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that supports equivalent copying facilities, provided you maintain
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clear directions next to the object code saying where to find the
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Corresponding Source. Regardless of what server hosts the
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Corresponding Source, you remain obligated to ensure that it is
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available for as long as needed to satisfy these requirements.
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e) Convey the object code using peer-to-peer transmission, provided
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you inform other peers where the object code and Corresponding
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Source of the work are being offered to the general public at no
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charge under subsection 6d.
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A separable portion of the object code, whose source code is excluded
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from the Corresponding Source as a System Library, need not be
295
included in conveying the object code work.
297
A "User Product" is either (1) a "consumer product", which means any
298
tangible personal property which is normally used for personal, family,
299
or household purposes, or (2) anything designed or sold for incorporation
300
into a dwelling. In determining whether a product is a consumer product,
301
doubtful cases shall be resolved in favor of coverage. For a particular
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product received by a particular user, "normally used" refers to a
303
typical or common use of that class of product, regardless of the status
304
of the particular user or of the way in which the particular user
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actually uses, or expects or is expected to use, the product. A product
306
is a consumer product regardless of whether the product has substantial
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commercial, industrial or non-consumer uses, unless such uses represent
308
the only significant mode of use of the product.
310
"Installation Information" for a User Product means any methods,
311
procedures, authorization keys, or other information required to install
312
and execute modified versions of a covered work in that User Product from
313
a modified version of its Corresponding Source. The information must
314
suffice to ensure that the continued functioning of the modified object
315
code is in no case prevented or interfered with solely because
316
modification has been made.
318
If you convey an object code work under this section in, or with, or
319
specifically for use in, a User Product, and the conveying occurs as
320
part of a transaction in which the right of possession and use of the
321
User Product is transferred to the recipient in perpetuity or for a
322
fixed term (regardless of how the transaction is characterized), the
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Corresponding Source conveyed under this section must be accompanied
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by the Installation Information. But this requirement does not apply
325
if neither you nor any third party retains the ability to install
326
modified object code on the User Product (for example, the work has
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been installed in ROM).
329
The requirement to provide Installation Information does not include a
330
requirement to continue to provide support service, warranty, or updates
331
for a work that has been modified or installed by the recipient, or for
332
the User Product in which it has been modified or installed. Access to a
333
network may be denied when the modification itself materially and
334
adversely affects the operation of the network or violates the rules and
335
protocols for communication across the network.
337
Corresponding Source conveyed, and Installation Information provided,
338
in accord with this section must be in a format that is publicly
339
documented (and with an implementation available to the public in
340
source code form), and must require no special password or key for
341
unpacking, reading or copying.
345
"Additional permissions" are terms that supplement the terms of this
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License by making exceptions from one or more of its conditions.
347
Additional permissions that are applicable to the entire Program shall
348
be treated as though they were included in this License, to the extent
349
that they are valid under applicable law. If additional permissions
350
apply only to part of the Program, that part may be used separately
351
under those permissions, but the entire Program remains governed by
352
this License without regard to the additional permissions.
354
When you convey a copy of a covered work, you may at your option
355
remove any additional permissions from that copy, or from any part of
356
it. (Additional permissions may be written to require their own
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removal in certain cases when you modify the work.) You may place
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additional permissions on material, added by you to a covered work,
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for which you have or can give appropriate copyright permission.
361
Notwithstanding any other provision of this License, for material you
362
add to a covered work, you may (if authorized by the copyright holders of
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that material) supplement the terms of this License with terms:
365
a) Disclaiming warranty or limiting liability differently from the
366
terms of sections 15 and 16 of this License; or
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b) Requiring preservation of specified reasonable legal notices or
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author attributions in that material or in the Appropriate Legal
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Notices displayed by works containing it; or
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c) Prohibiting misrepresentation of the origin of that material, or
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requiring that modified versions of such material be marked in
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authors of the material; or
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e) Declining to grant rights under trademark law for use of some
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it) with contractual assumptions of liability to the recipient, for
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any liability that these contractual assumptions directly impose on
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All other non-permissive additional terms are considered "further
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restrictions" within the meaning of section 10. If the Program as you
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received it, or any part of it, contains a notice stating that it is
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governed by this License along with a term that is a further
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restriction, you may remove that term. If a license document contains
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a further restriction but permits relicensing or conveying under this
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not survive such relicensing or conveying.
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If you add terms to a covered work in accord with this section, you
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must place, in the relevant source files, a statement of the
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additional terms that apply to those files, or a notice indicating
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where to find the applicable terms.
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Additional terms, permissive or non-permissive, may be stated in the
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form of a separately written license, or stated as exceptions;
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the above requirements apply either way.
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You may not propagate or modify a covered work except as expressly
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provided under this License. Any attempt otherwise to propagate or
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modify it is void, and will automatically terminate your rights under
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this License (including any patent licenses granted under the third
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paragraph of section 11).
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However, if you cease all violation of this License, then your
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license from a particular copyright holder is reinstated (a)
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provisionally, unless and until the copyright holder explicitly and
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finally terminates your license, and (b) permanently, if the copyright
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holder fails to notify you of the violation by some reasonable means
420
prior to 60 days after the cessation.
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Moreover, your license from a particular copyright holder is
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reinstated permanently if the copyright holder notifies you of the
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violation by some reasonable means, this is the first time you have
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received notice of violation of this License (for any work) from that
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copyright holder, and you cure the violation prior to 30 days after
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your receipt of the notice.
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Termination of your rights under this section does not terminate the
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licenses of parties who have received copies or rights from you under
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this License. If your rights have been terminated and not permanently
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reinstated, you do not qualify to receive new licenses for the same
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material under section 10.
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9. Acceptance Not Required for Having Copies.
437
You are not required to accept this License in order to receive or
438
run a copy of the Program. Ancillary propagation of a covered work
439
occurring solely as a consequence of using peer-to-peer transmission
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to receive a copy likewise does not require acceptance. However,
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nothing other than this License grants you permission to propagate or
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modify any covered work. These actions infringe copyright if you do
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not accept this License. Therefore, by modifying or propagating a
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covered work, you indicate your acceptance of this License to do so.
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10. Automatic Licensing of Downstream Recipients.
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Each time you convey a covered work, the recipient automatically
449
receives a license from the original licensors, to run, modify and
450
propagate that work, subject to this License. You are not responsible
451
for enforcing compliance by third parties with this License.
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An "entity transaction" is a transaction transferring control of an
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organization, or substantially all assets of one, or subdividing an
455
organization, or merging organizations. If propagation of a covered
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work results from an entity transaction, each party to that
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transaction who receives a copy of the work also receives whatever
458
licenses to the work the party's predecessor in interest had or could
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give under the previous paragraph, plus a right to possession of the
460
Corresponding Source of the work from the predecessor in interest, if
461
the predecessor has it or can get it with reasonable efforts.
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You may not impose any further restrictions on the exercise of the
464
rights granted or affirmed under this License. For example, you may
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not impose a license fee, royalty, or other charge for exercise of
466
rights granted under this License, and you may not initiate litigation
467
(including a cross-claim or counterclaim in a lawsuit) alleging that
468
any patent claim is infringed by making, using, selling, offering for
469
sale, or importing the Program or any portion of it.
473
A "contributor" is a copyright holder who authorizes use under this
474
License of the Program or a work on which the Program is based. The
475
work thus licensed is called the contributor's "contributor version".
477
A contributor's "essential patent claims" are all patent claims
478
owned or controlled by the contributor, whether already acquired or
479
hereafter acquired, that would be infringed by some manner, permitted
480
by this License, of making, using, or selling its contributor version,
481
but do not include claims that would be infringed only as a
482
consequence of further modification of the contributor version. For
483
purposes of this definition, "control" includes the right to grant
484
patent sublicenses in a manner consistent with the requirements of
487
Each contributor grants you a non-exclusive, worldwide, royalty-free
488
patent license under the contributor's essential patent claims, to
489
make, use, sell, offer for sale, import and otherwise run, modify and
490
propagate the contents of its contributor version.
492
In the following three paragraphs, a "patent license" is any express
493
agreement or commitment, however denominated, not to enforce a patent
494
(such as an express permission to practice a patent or covenant not to
495
sue for patent infringement). To "grant" such a patent license to a
496
party means to make such an agreement or commitment not to enforce a
497
patent against the party.
499
If you convey a covered work, knowingly relying on a patent license,
500
and the Corresponding Source of the work is not available for anyone
501
to copy, free of charge and under the terms of this License, through a
502
publicly available network server or other readily accessible means,
503
then you must either (1) cause the Corresponding Source to be so
504
available, or (2) arrange to deprive yourself of the benefit of the
505
patent license for this particular work, or (3) arrange, in a manner
506
consistent with the requirements of this License, to extend the patent
507
license to downstream recipients. "Knowingly relying" means you have
508
actual knowledge that, but for the patent license, your conveying the
509
covered work in a country, or your recipient's use of the covered work
510
in a country, would infringe one or more identifiable patents in that
511
country that you have reason to believe are valid.
513
If, pursuant to or in connection with a single transaction or
514
arrangement, you convey, or propagate by procuring conveyance of, a
515
covered work, and grant a patent license to some of the parties
516
receiving the covered work authorizing them to use, propagate, modify
517
or convey a specific copy of the covered work, then the patent license
518
you grant is automatically extended to all recipients of the covered
519
work and works based on it.
521
A patent license is "discriminatory" if it does not include within
522
the scope of its coverage, prohibits the exercise of, or is
523
conditioned on the non-exercise of one or more of the rights that are
524
specifically granted under this License. You may not convey a covered
525
work if you are a party to an arrangement with a third party that is
526
in the business of distributing software, under which you make payment
527
to the third party based on the extent of your activity of conveying
528
the work, and under which the third party grants, to any of the
529
parties who would receive the covered work from you, a discriminatory
530
patent license (a) in connection with copies of the covered work
531
conveyed by you (or copies made from those copies), or (b) primarily
532
for and in connection with specific products or compilations that
533
contain the covered work, unless you entered into that arrangement,
534
or that patent license was granted, prior to 28 March 2007.
536
Nothing in this License shall be construed as excluding or limiting
537
any implied license or other defenses to infringement that may
538
otherwise be available to you under applicable patent law.
540
12. No Surrender of Others' Freedom.
542
If conditions are imposed on you (whether by court order, agreement or
543
otherwise) that contradict the conditions of this License, they do not
544
excuse you from the conditions of this License. If you cannot convey a
545
covered work so as to satisfy simultaneously your obligations under this
546
License and any other pertinent obligations, then as a consequence you may
547
not convey it at all. For example, if you agree to terms that obligate you
548
to collect a royalty for further conveying from those to whom you convey
549
the Program, the only way you could satisfy both those terms and this
550
License would be to refrain entirely from conveying the Program.
552
13. Use with the GNU Affero General Public License.
554
Notwithstanding any other provision of this License, you have
555
permission to link or combine any covered work with a work licensed
556
under version 3 of the GNU Affero General Public License into a single
557
combined work, and to convey the resulting work. The terms of this
558
License will continue to apply to the part which is the covered work,
559
but the special requirements of the GNU Affero General Public License,
560
section 13, concerning interaction through a network will apply to the
563
14. Revised Versions of this License.
565
The Free Software Foundation may publish revised and/or new versions of
566
the GNU General Public License from time to time. Such new versions will
567
be similar in spirit to the present version, but may differ in detail to
568
address new problems or concerns.
570
Each version is given a distinguishing version number. If the
571
Program specifies that a certain numbered version of the GNU General
572
Public License "or any later version" applies to it, you have the
573
option of following the terms and conditions either of that numbered
574
version or of any later version published by the Free Software
575
Foundation. If the Program does not specify a version number of the
576
GNU General Public License, you may choose any version ever published
577
by the Free Software Foundation.
579
If the Program specifies that a proxy can decide which future
580
versions of the GNU General Public License can be used, that proxy's
581
public statement of acceptance of a version permanently authorizes you
582
to choose that version for the Program.
584
Later license versions may give you additional or different
585
permissions. However, no additional obligations are imposed on any
586
author or copyright holder as a result of your choosing to follow a
589
15. Disclaimer of Warranty.
591
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
600
16. Limitation of Liability.
602
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
612
17. Interpretation of Sections 15 and 16.
614
If the disclaimer of warranty and limitation of liability provided
615
above cannot be given local legal effect according to their terms,
616
reviewing courts shall apply local law that most closely approximates
617
an absolute waiver of all civil liability in connection with the
618
Program, unless a warranty or assumption of liability accompanies a
619
copy of the Program in return for a fee.
621
END OF TERMS AND CONDITIONS
623
How to Apply These Terms to Your New Programs
625
If you develop a new program, and you want it to be of the greatest
301
626
possible use to the public, the best way to achieve this is to make it
302
free software which everyone can redistribute and change under these
627
free software which everyone can redistribute and change under these terms.
305
To do so, attach the following notices to the program. It is safest
629
To do so, attach the following notices to the program. It is safest
306
630
to attach them to the start of each source file to most effectively
307
convey the exclusion of warranty; and each file should have at least
631
state the exclusion of warranty; and each file should have at least
308
632
the "copyright" line and a pointer to where the full notice is found.
310
ONE LINE TO GIVE THE PROGRAM'S NAME AND A BRIEF IDEA OF WHAT IT DOES.
311
Copyright (C) 19YY NAME OF AUTHOR
313
This program is free software; you can redistribute it and/or modify
314
it under the terms of the GNU General Public License as published by
315
the Free Software Foundation; either version 2 of the License, or
316
(at your option) any later version.
318
This program is distributed in the hope that it will be useful,
319
but WITHOUT ANY WARRANTY; without even the implied warranty of
320
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
321
GNU General Public License for more details.
323
You should have received a copy of the GNU General Public License
324
along with this program; if not, write to the Free Software
325
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
327
Also add information on how to contact you by electronic and paper
330
If the program is interactive, make it output a short notice like
331
this when it starts in an interactive mode:
333
Gnomovision version 69, Copyright (C) 19YY NAME OF AUTHOR
334
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details
336
This is free software, and you are welcome to redistribute it
337
under certain conditions; type `show c' for details.
339
The hypothetical commands `show w' and `show c' should show the
340
appropriate parts of the General Public License. Of course, the
341
commands you use may be called something other than `show w' and `show
342
c'; they could even be mouse-clicks or menu items--whatever suits your
345
You should also get your employer (if you work as a programmer) or
346
your school, if any, to sign a "copyright disclaimer" for the program,
347
if necessary. Here is a sample; alter the names:
349
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
350
`Gnomovision' (which makes passes at compilers) written by James Hacker.
352
SIGNATURE OF TY COON, 1 April 1989
353
Ty Coon, President of Vice
355
This General Public License does not permit incorporating your
356
program into proprietary programs. If your program is a subroutine
357
library, you may consider it more useful to permit linking proprietary
358
applications with the library. If this is what you want to do, use the
359
GNU Library General Public License instead of this License.
634
<one line to give the program's name and a brief idea of what it does.>
635
Copyright (C) <year> <name of author>
637
This program is free software: you can redistribute it and/or modify
638
it under the terms of the GNU General Public License as published by
639
the Free Software Foundation, either version 3 of the License, or
640
(at your option) any later version.
642
This program is distributed in the hope that it will be useful,
643
but WITHOUT ANY WARRANTY; without even the implied warranty of
644
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645
GNU General Public License for more details.
647
You should have received a copy of the GNU General Public License
648
along with this program. If not, see <http://www.gnu.org/licenses/>.
650
Also add information on how to contact you by electronic and paper mail.
652
If the program does terminal interaction, make it output a short
653
notice like this when it starts in an interactive mode:
655
<program> Copyright (C) <year> <name of author>
656
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657
This is free software, and you are welcome to redistribute it
658
under certain conditions; type `show c' for details.
660
The hypothetical commands `show w' and `show c' should show the appropriate
661
parts of the General Public License. Of course, your program's commands
662
might be different; for a GUI interface, you would use an "about box".
664
You should also get your employer (if you work as a programmer) or school,
665
if any, to sign a "copyright disclaimer" for the program, if necessary.
666
For more information on this, and how to apply and follow the GNU GPL, see
667
<http://www.gnu.org/licenses/>.
669
The GNU General Public License does not permit incorporating your program
670
into proprietary programs. If your program is a subroutine library, you
671
may consider it more useful to permit linking proprietary applications with
672
the library. If this is what you want to do, use the GNU Lesser General
673
Public License instead of this License. But first, please read
674
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
added
removed
TeXmacs/LICENSE
