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* Clarify the license for files we have signoff on * Update against the currently signed off files * Remove unused and not clearly licensed headers * Replace an #endif I accidentally removed while resolving merge conflicts
264 lines
15 KiB
Markdown
264 lines
15 KiB
Markdown
The GNU General Public License, Version 2, June 1991 (GPLv2)
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============================================================
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> Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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> 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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Everyone is permitted to copy and distribute verbatim copies of this license
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document, but changing it is not allowed.
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Preamble
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--------
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The licenses for most software are designed to take away your freedom to share
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and change it. By contrast, the GNU General Public License is intended to
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guarantee your freedom to share and change free software--to make sure the
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software is free for all its users. This General Public License applies to most
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of the Free Software Foundation's software and to any other program whose
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authors commit to using it. (Some other Free Software Foundation software is
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covered by the GNU Lesser General Public License instead.) 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 price. Our
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General Public Licenses are designed to make sure that you have the freedom to
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distribute copies of free software (and charge for this service if you wish),
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that you receive source code or can get it if you want it, that you can change
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the software or use pieces of it in new free programs; and that you know you can
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do these things.
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To protect your rights, we need to make restrictions that forbid anyone to deny
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you these rights or to ask you to surrender the rights. These restrictions
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translate to certain responsibilities for you if you distribute copies of the
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software, or if you modify it.
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For example, if you distribute copies of such a program, whether gratis or for a
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fee, you must give the recipients all the rights that you have. You must make
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sure that they, too, receive or can get the source code. And you must show them
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these terms so they know their rights.
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We protect your rights with two steps: (1) copyright the software, and (2) offer
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you this license which gives you legal permission to copy, distribute and/or
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modify the software.
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Also, for each author's protection and ours, we want to make certain that
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everyone understands that there is no warranty for this free software. If the
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software is modified by someone else and passed on, we want its recipients to
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know that what they have is not the original, so that any problems introduced by
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others will not reflect on the original authors' reputations.
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Finally, any free program is threatened constantly by software patents. We wish
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to avoid the danger that redistributors of a free program will individually
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obtain patent licenses, in effect making the program proprietary. To prevent
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this, we have made it clear that any patent must be licensed for everyone's free
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use or not licensed at all.
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The precise terms and conditions for copying, distribution and modification
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follow.
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Terms And Conditions For Copying, Distribution And Modification
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---------------------------------------------------------------
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**0.** This License applies to any program or other work which contains a notice
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placed by the copyright holder saying it may be distributed under the terms of
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this General Public License. The "Program", below, refers to any such program or
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work, and a "work based on the Program" means either the Program or any
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derivative work under copyright law: that is to say, a work containing the
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Program or a portion of it, either verbatim or with modifications and/or
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translated into another language. (Hereinafter, translation is included without
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limitation in the term "modification".) Each licensee is addressed as "you".
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Activities other than copying, distribution and modification are not covered by
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this License; they are outside its scope. The act of running the Program is not
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restricted, and the output from the Program is covered only if its contents
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constitute a work based on the Program (independent of having been made by
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running the 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 source code
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as you receive it, in any medium, provided that you conspicuously and
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appropriately publish on each copy an appropriate copyright notice and
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disclaimer of warranty; keep intact all the notices that refer to this License
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and to the absence of any warranty; and give any other recipients of the Program
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a copy of this License along with the Program.
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You may charge a fee for the physical act of transferring a copy, and you may at
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your option offer warranty protection in exchange for a fee.
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**2.** You may modify your copy or copies of the Program or any portion of it,
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thus forming a work based on the Program, and copy and distribute such
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modifications or work under the terms of Section 1 above, provided that you also
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meet all of these conditions:
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* **a)** You must cause the modified files to carry prominent notices stating
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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 in whole
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or in part contains or is derived from the Program or any part thereof, to
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be licensed as a whole at no charge to all third parties under the terms of
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this License.
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* **c)** If the modified program normally reads commands interactively when
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run, you must cause it, when started running for such interactive use in the
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most ordinary way, to print or display an announcement including an
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appropriate copyright notice and a notice that there is no warranty (or
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else, saying that you provide a warranty) and that users may redistribute
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the program under these conditions, and telling the user how to view a copy
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of this License. (Exception: if the Program itself is interactive but does
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not normally print such an announcement, your work based on the Program is
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not required to print an announcement.)
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These requirements apply to the modified work as a whole. If identifiable
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sections of that work are not derived from the Program, and can be reasonably
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considered independent and separate works in themselves, then this License, and
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its terms, do not 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 whole which is a
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work based on the Program, the distribution of the whole must be on the terms of
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this License, whose permissions for other licensees extend to the entire whole,
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and thus to each 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 contest your
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rights to work written entirely by you; rather, the intent is to exercise the
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right to control the distribution of derivative or collective works based on the
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Program.
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In addition, mere aggregation of another work not based on the Program with the
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Program (or with a work based on the Program) on a volume of a storage or
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distribution medium does not bring the other work under the scope of this
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License.
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**3.** You may copy and distribute the Program (or a work based on it, under
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Section 2) in object code or executable form under the terms of Sections 1 and 2
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above provided that you also do one of the following:
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* **a)** Accompany it with the complete corresponding machine-readable source
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code, which must be distributed under the terms of Sections 1 and 2 above on
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a medium customarily used for software interchange; or,
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* **b)** Accompany it with a written offer, valid for at least three years, to
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give any third party, for a charge no more than your cost of physically
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performing source distribution, a complete machine-readable copy of the
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corresponding source code, to be distributed under the terms of Sections 1
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and 2 above on a medium customarily used for software interchange; or,
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* **c)** Accompany it with the information you received as to the offer to
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distribute corresponding source code. (This alternative is allowed only for
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noncommercial distribution and only if you received the program in object
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code or executable form with such an offer, in accord with Subsection b
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above.)
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The source code for a work means the preferred form of the work for making
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modifications to it. For an executable work, complete source code means all the
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source code for all modules it contains, plus any associated interface
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definition files, plus the scripts used to control compilation and installation
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of the executable. However, as a special exception, the source code distributed
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need not include anything that is normally distributed (in either source or
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binary form) with the major components (compiler, kernel, and so on) of the
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operating system on which the executable runs, unless that component itself
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accompanies the executable.
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If distribution of executable or object code is made by offering access to copy
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from a designated place, then offering equivalent access to copy the source code
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from the same place counts as distribution of the source code, even though third
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parties are not 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 except as
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expressly provided under this License. Any attempt otherwise to copy, modify,
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sublicense or distribute the Program is void, and will automatically terminate
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your rights under this License. However, parties who have received copies, or
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rights, from you under this License will not have their licenses terminated so
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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 signed
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it. However, nothing else grants you permission to modify or distribute the
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Program or its derivative works. These actions are prohibited by law if you do
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not accept this License. Therefore, by modifying or distributing the Program (or
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any work based on the Program), you indicate your acceptance of this License to
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do so, and all its terms and conditions for copying, distributing or modifying
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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 original
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licensor to copy, distribute or modify the Program subject to these terms and
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conditions. You may not impose any further restrictions on the recipients'
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exercise of the rights granted herein. You are not responsible for enforcing
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compliance 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 issues), conditions
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are imposed on you (whether by court order, agreement or otherwise) that
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contradict the conditions of this License, they do not excuse you from the
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conditions of this License. If you cannot distribute so as to satisfy
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simultaneously your obligations under this License and any other pertinent
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obligations, then as a consequence you may not distribute the Program at all.
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For example, if a patent license would not permit royalty-free redistribution of
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the Program by all those who receive copies directly or indirectly through you,
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then the only 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 under any
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particular circumstance, the balance of the section is intended to apply and the
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section as a whole is intended to apply in other circumstances.
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It is not the purpose of this section to induce you to infringe any patents or
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other property right claims or to contest validity of any such claims; this
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section has the sole purpose of protecting the integrity of the free software
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distribution system, which is implemented by public license practices. Many
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people have made generous contributions to the wide range of software
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distributed 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 willing to
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distribute software through any other system and a licensee cannot impose that
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choice.
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This section is intended to make thoroughly clear what is believed to be a
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consequence of the rest of this License.
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**8.** If the distribution and/or use of the Program is restricted in certain
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countries either by patents or by copyrighted interfaces, the original copyright
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holder who places the Program under this License may add an explicit
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geographical distribution limitation excluding those countries, so that
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distribution is permitted only in or among countries not thus excluded. In such
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case, this License incorporates the limitation as if written in the body of this
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License.
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**9.** The Free Software Foundation may publish revised and/or new versions of
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the General Public License from time to time. Such new versions will be similar
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in spirit to the present version, but may differ in detail to address new
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problems or concerns.
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Each version is given a distinguishing version number. If the Program specifies
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a version number of this License which applies to it and "any later version",
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you have the option of following the terms and conditions either of that version
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or of any later version published by the Free Software Foundation. If the
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Program does not specify a version number of this License, you may choose any
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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 programs
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whose distribution conditions are different, write to the author to ask for
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permission. For software which is copyrighted by the Free Software Foundation,
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write to the Free Software Foundation; we sometimes make exceptions for this.
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Our decision 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 and reuse of
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software generally.
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No Warranty
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-----------
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**11.** BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
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THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
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STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM
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"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
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PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
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ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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**12.** IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
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THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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GENERAL, SPECIAL, 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 DATA OR DATA
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BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
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FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER
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OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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