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GNU GENERAL PUBLIC LICENSE
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Version 2, June 1991
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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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Preamble
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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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your programs, too.
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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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this service if you wish), that you receive source code or can get it
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if you want it, that you can change the software or use pieces of it
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in 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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anyone to deny you these rights or to ask you to surrender the rights.
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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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rights.
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We protect your rights with two steps: (1) copyright the software, and
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(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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that everyone understands that there is no warranty for this free
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software. If the software is modified by someone else and passed on, we
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want its recipients to know that what they have is not the original, so
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that any problems introduced by others will not reflect on the original
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authors' reputations.
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Finally, any free program is threatened constantly by software
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patents. We wish to avoid the danger that redistributors of a free
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program will individually obtain patent licenses, in effect making the
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program proprietary. To prevent this, we have made it clear that any
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patent must be licensed for everyone's free use or not licensed at all.
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The precise terms and conditions for copying, distribution and
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modification follow.
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9456
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GNU GENERAL PUBLIC LICENSE
183
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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
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a 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", below,
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refers to any such program or work, and a "work based on the Program"
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means either the Program or any derivative work under copyright law:
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that is to say, a work containing the Program or a portion of it,
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either verbatim or with modifications and/or translated into another
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language. (Hereinafter, translation is included without limitation in
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the term "modification".) Each licensee is addressed as "you".
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Activities other than copying, distribution and modification are not
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covered by this License; they are outside its scope. The act of
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running the Program is not restricted, and the output from the Program
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is covered only if its contents constitute a work based on the
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Program (independent of having been made by running the Program).
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Whether that is true depends on what the Program does.
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183
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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 warranty;
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and give any other recipients of the Program a copy of this License
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along with the Program.
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You may charge a fee for the physical act of transferring a copy, and
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you may at 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
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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 in
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whole or in part contains or is derived from the Program or any
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part thereof, to be licensed as a whole at no charge to all third
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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 an
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announcement including an appropriate copyright notice and a
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notice that there is no warranty (or else, saying that you provide
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a warranty) and that users may redistribute the program under
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these conditions, and telling the user how to view a copy of this
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License. (Exception: if the Program itself is interactive but
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does not normally print such an announcement, your work based on
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the Program is not required 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 Program,
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and can be reasonably considered independent and separate works in
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themselves, then this License, and its terms, do not apply to those
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sections when you distribute them as separate works. But when you
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distribute the same sections as part of a whole which is a work based
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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
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entire whole, 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
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your rights to work written entirely by you; rather, the intent is to
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exercise the right to control the distribution of derivative or
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collective works based on the Program.
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In addition, mere aggregation of another work not based on the Program
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with the Program (or with a work based on the Program) on a volume of
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a storage or distribution medium does not bring the other work under
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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 of
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Sections 1 and 2 above provided that you also do one of the following:
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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 Sections
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1 and 2 above on a medium customarily used for 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 medium
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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 such
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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 source
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code means all the source code for all modules it contains, plus any
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associated interface definition files, plus the scripts used to
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control compilation and installation of the executable. However, as a
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special exception, the source code distributed need not include
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anything that is normally distributed (in either source or binary
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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
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itself accompanies the executable.
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183
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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 License.
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However, parties who have received copies, or rights, from you under
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this License will not have their licenses terminated so long as such
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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 or
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distribute the Program or its derivative works. These actions are
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prohibited by law if you do not accept this License. Therefore, by
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modifying or distributing the Program (or any work based on the
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Program), you indicate your acceptance of this License to do so, and
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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
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original licensor to copy, distribute or modify the Program subject to
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these terms and conditions. You may not impose any further
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restrictions on the recipients' exercise of the rights granted herein.
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You are not responsible for enforcing compliance by third parties to
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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),
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conditions are imposed on you (whether by court order, agreement or
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otherwise) that contradict the conditions of this License, they do not
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excuse you from the conditions of this License. If you cannot
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distribute so as to satisfy simultaneously your obligations under this
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License and any other pertinent obligations, then as a consequence you
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may not distribute the Program at all. For example, if a patent
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license would not permit royalty-free redistribution of the Program by
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all those who receive copies directly or indirectly through you, then
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the only way you could satisfy both it and this License would be to
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refrain entirely from distribution of the Program.
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If any portion of this section is held invalid or unenforceable under
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any particular circumstance, the balance of the section is intended to
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apply and the section as a whole is intended to apply in other
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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 any
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such claims; this section has the sole purpose of protecting the
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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 willing
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to distribute software through any other system and a licensee cannot
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impose that choice.
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This section is intended to make thoroughly clear what is believed to
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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, the
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original copyright holder who places the Program under this License
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may add an explicit geographical distribution limitation excluding
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those countries, so that distribution is permitted only in or among
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countries not thus excluded. In such case, this License incorporates
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the limitation as if written in the body of this License.
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9. The Free Software Foundation may publish revised and/or new versions
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of the General Public License from time to time. Such new versions will
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be similar in spirit to the present version, but may differ in detail to
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address new problems or concerns.
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Each version is given a distinguishing version number. If the Program
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specifies a version number of this License which applies to it and "any
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later version", you have the option of following the terms and conditions
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either of that version or of any later version published by the Free
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Software Foundation. If the Program does not specify a version number of
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this License, you may choose any version ever published by the Free Software
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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 author
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to ask for permission. For software which is copyrighted by the Free
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Software Foundation, write to the Free Software Foundation; we sometimes
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make exceptions for this. Our decision will be guided by the two goals
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of preserving the free status of all derivatives of our free software and
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of promoting the sharing and reuse of software generally.
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NO WARRANTY
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11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
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FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
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OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
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OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ − 265
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
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TO THE 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 SERVICING,
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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
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REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
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INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
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OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
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TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
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YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
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PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
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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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If you develop a new program, and you want it to be of the greatest
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possible use to the public, the best way to achieve this is to make it
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free software which everyone can redistribute and change under these terms.
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To do so, attach the following notices to the program. It is safest
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to attach them to the start of each source file to most effectively
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convey the exclusion of warranty; and each file should have at least
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the "copyright" line and a pointer to where the full notice is found.
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<one line to give the program's name and a brief idea of what it does.>
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Copyright (C) <year> <name of author>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Also add information on how to contact you by electronic and paper mail.
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If the program is interactive, make it output a short notice like this
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when it starts in an interactive mode:
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Gnomovision version 69, Copyright (C) year name of author
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Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
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This is free software, and you are welcome to redistribute it
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under certain conditions; type `show c' for details.
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The hypothetical commands `show w' and `show c' should show the appropriate
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parts of the General Public License. Of course, the commands you use may
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be called something other than `show w' and `show c'; they could even be
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mouse-clicks or menu items--whatever suits your program.
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You should also get your employer (if you work as a programmer) or your
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school, if any, to sign a "copyright disclaimer" for the program, if
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necessary. Here is a sample; alter the names:
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program
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`Gnomovision' (which makes passes at compilers) written by James Hacker.
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<signature of Ty Coon>, 1 April 1989
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Ty Coon, President of Vice
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This General Public License does not permit incorporating your program into
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proprietary programs. If your program is a subroutine library, you may
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consider it more useful to permit linking proprietary applications with the
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library. If this is what you want to do, use the GNU Library General
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Public License instead of this License.
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GNU Free Documentation License
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Version 1.2, November 2002
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Copyright (C) 2000,2001,2002 Free Software Foundation, Inc.
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51 Franklin St, Fifth Floor, Boston, MA 02110-1301 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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0. PREAMBLE
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The purpose of this License is to make a manual, textbook, or other functional
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and useful document "free" in the sense of freedom: to assure everyone the
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effective freedom to copy and redistribute it, with or without modifying it,
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either commercially or noncommercially. Secondarily, this License preserves for
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the author and publisher a way to get credit for their work, while not being
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considered responsible for modifications made by others.
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This License is a kind of "copyleft", which means that derivative works of the
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document must themselves be free in the same sense. It complements the GNU
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General Public License, which is a copyleft license designed for free software.
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We have designed this License in order to use it for manuals for free software,
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because free software needs free documentation: a free program should come with
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manuals providing the same freedoms that the software does. But this License is
+ − 368
not limited to software manuals; it can be used for any textual work,
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regardless of subject matter or whether it is published as a printed book. We
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recommend this License principally for works whose purpose is instruction or
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reference.
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1. APPLICABILITY AND DEFINITIONS
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This License applies to any manual or other work, in any medium, that contains
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a notice placed by the copyright holder saying it can be distributed under the
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terms of this License. Such a notice grants a world-wide, royalty-free license,
+ − 378
unlimited in duration, to use that work under the conditions stated herein. The
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"Document", below, refers to any such manual or work. Any member of the public
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is a licensee, and is addressed as "you". You accept the license if you copy,
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modify or distribute the work in a way requiring permission under copyright
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law.
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A "Modified Version" of the Document means any work containing the Document or
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a portion of it, either copied verbatim, or with modifications and/or
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translated into another language.
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A "Secondary Section" is a named appendix or a front-matter section of the
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Document that deals exclusively with the relationship of the publishers or
+ − 390
authors of the Document to the Document's overall subject (or to related
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matters) and contains nothing that could fall directly within that overall
+ − 392
subject. (Thus, if the Document is in part a textbook of mathematics, a
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Secondary Section may not explain any mathematics.) The relationship could be a
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matter of historical connection with the subject or with related matters, or of
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legal, commercial, philosophical, ethical or political position regarding them.
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The "Invariant Sections" are certain Secondary Sections whose titles are
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designated, as being those of Invariant Sections, in the notice that says that
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the Document is released under this License. If a section does not fit the
+ − 400
above definition of Secondary then it is not allowed to be designated as
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Invariant. The Document may contain zero Invariant Sections. If the Document
+ − 402
does not identify any Invariant Sections then there are none.
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The "Cover Texts" are certain short passages of text that are listed, as
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Front-Cover Texts or Back-Cover Texts, in the notice that says that the
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Document is released under this License. A Front-Cover Text may be at most 5
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words, and a Back-Cover Text may be at most 25 words.
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A "Transparent" copy of the Document means a machine-readable copy, represented
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in a format whose specification is available to the general public, that is
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suitable for revising the document straightforwardly with generic text editors
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or (for images composed of pixels) generic paint programs or (for drawings)
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some widely available drawing editor, and that is suitable for input to text
+ − 414
formatters or for automatic translation to a variety of formats suitable for
+ − 415
input to text formatters. A copy made in an otherwise Transparent file format
+ − 416
whose markup, or absence of markup, has been arranged to thwart or discourage
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subsequent modification by readers is not Transparent. An image format is not
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Transparent if used for any substantial amount of text. A copy that is not
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"Transparent" is called "Opaque".
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Examples of suitable formats for Transparent copies include plain ASCII without
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markup, Texinfo input format, LaTeX input format, SGML or XML using a publicly
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available DTD, and standard-conforming simple HTML, PostScript or PDF designed
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for human modification. Examples of transparent image formats include PNG, XCF
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and JPG. Opaque formats include proprietary formats that can be read and edited
+ − 426
only by proprietary word processors, SGML or XML for which the DTD and/or
+ − 427
processing tools are not generally available, and the machine-generated HTML,
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PostScript or PDF produced by some word processors for output purposes only.
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The "Title Page" means, for a printed book, the title page itself, plus such
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following pages as are needed to hold, legibly, the material this License
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requires to appear in the title page. For works in formats which do not have
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any title page as such, "Title Page" means the text near the most prominent
+ − 434
appearance of the work's title, preceding the beginning of the body of the text.
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A section "Entitled XYZ" means a named subunit of the Document whose title
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either is precisely XYZ or contains XYZ in parentheses following text that
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translates XYZ in another language. (Here XYZ stands for a specific section
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name mentioned below, such as "Acknowledgements", "Dedications",
+ − 440
"Endorsements", or "History".) To "Preserve the Title" of such a section when
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you modify the Document means that it remains a section "Entitled XYZ"
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according to this definition.
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The Document may include Warranty Disclaimers next to the notice which states
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that this License applies to the Document. These Warranty Disclaimers are
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considered to be included by reference in this License, but only as regards
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disclaiming warranties: any other implication that these Warranty Disclaimers
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may have is void and has no effect on the meaning of this License.
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2. VERBATIM COPYING
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You may copy and distribute the Document in any medium, either commercially or
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noncommercially, provided that this License, the copyright notices, and the
+ − 454
license notice saying this License applies to the Document are reproduced in
+ − 455
all copies, and that you add no other conditions whatsoever to those of this
+ − 456
License. You may not use technical measures to obstruct or control the reading
+ − 457
or further copying of the copies you make or distribute. However, you may
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accept compensation in exchange for copies. If you distribute a large enough
+ − 459
number of copies you must also follow the conditions in section 3.
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You may also lend copies, under the same conditions stated above, and you may
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publicly display copies.
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3. COPYING IN QUANTITY
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If you publish printed copies (or copies in media that commonly have printed
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covers) of the Document, numbering more than 100, and the Document's license
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notice requires Cover Texts, you must enclose the copies in covers that carry,
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clearly and legibly, all these Cover Texts: Front-Cover Texts on the front
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cover, and Back-Cover Texts on the back cover. Both covers must also clearly
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and legibly identify you as the publisher of these copies. The front cover must
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present the full title with all words of the title equally prominent and
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visible. You may add other material on the covers in addition. Copying with
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changes limited to the covers, as long as they preserve the title of the
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Document and satisfy these conditions, can be treated as verbatim copying in
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other respects.
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If the required texts for either cover are too voluminous to fit legibly, you
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should put the first ones listed (as many as fit reasonably) on the actual
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cover, and continue the rest onto adjacent pages.
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If you publish or distribute Opaque copies of the Document numbering more than
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100, you must either include a machine-readable Transparent copy along with each
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Opaque copy, or state in or with each Opaque copy a computer-network location
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from which the general network-using public has access to download using
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public-standard network protocols a complete Transparent copy of the Document,
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free of added material. If you use the latter option, you must take reasonably
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prudent steps, when you begin distribution of Opaque copies in quantity, to
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ensure that this Transparent copy will remain thus accessible at the stated
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location until at least one year after the last time you distribute an Opaque
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copy (directly or through your agents or retailers) of that edition to the
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public.
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It is requested, but not required, that you contact the authors of the Document
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well before redistributing any large number of copies, to give them a chance to
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provide you with an updated version of the Document.
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4. MODIFICATIONS
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You may copy and distribute a Modified Version of the Document under the
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conditions of sections 2 and 3 above, provided that you release the Modified
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Version under precisely this License, with the Modified Version filling the role
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of the Document, thus licensing distribution and modification of the Modified
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Version to whoever possesses a copy of it. In addition, you must do these things
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in the Modified Version:
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A. Use in the Title Page (and on the covers, if any) a title distinct from
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that of the Document, and from those of previous versions (which should,
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if there were any, be listed in the History section of the Document).
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You may use the same title as a previous version if the original
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publisher of that version gives permission.
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B. List on the Title Page, as authors, one or more persons or entities
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responsible for authorship of the modifications in the Modified Version,
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together with at least five of the principal authors of the Document
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(all of its principal authors, if it has fewer than five), unless they
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release you from this requirement.
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C. State on the Title page the name of the publisher of the Modified
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Version, as the publisher.
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D. Preserve all the copyright notices of the Document.
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E. Add an appropriate copyright notice for your modifications adjacent to
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the other copyright notices.
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F. Include, immediately after the copyright notices, a license notice
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giving the public permission to use the Modified Version under the terms
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of this License, in the form shown in the Addendum below.
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G. Preserve in that license notice the full lists of Invariant Sections and
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required Cover Texts given in the Document's license notice.
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H. Include an unaltered copy of this License.
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I. Preserve the section Entitled "History", Preserve its Title, and add to
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it an item stating at least the title, year, new authors, and publisher
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of the Modified Version as given on the Title Page. If there is no
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section Entitled "History" in the Document, create one stating the
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title, year, authors, and publisher of the Document as given on its
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Title Page, then add an item describing the Modified Version as stated
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in the previous sentence.
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J. Preserve the network location, if any, given in the Document for public
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access to a Transparent copy of the Document, and likewise the network
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locations given in the Document for previous versions it was based on.
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These may be placed in the "History" section. You may omit a network
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location for a work that was published at least four years before the
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Document itself, or if the original publisher of the version it refers
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to gives permission.
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K. For any section Entitled "Acknowledgements" or "Dedications", Preserve
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the Title of the section, and preserve in the section all the substance
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and tone of each of the contributor acknowledgements and/or dedications
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given therein.
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L. Preserve all the Invariant Sections of the Document, unaltered in their
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text and in their titles. Section numbers or the equivalent are not
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considered part of the section titles.
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M. Delete any section Entitled "Endorsements". Such a section may not be
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included in the Modified Version.
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N. Do not retitle any existing section to be Entitled "Endorsements" or to
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conflict in title with any Invariant Section.
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O. Preserve any Warranty Disclaimers.
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If the Modified Version includes new front-matter sections or appendices that
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qualify as Secondary Sections and contain no material copied from the Document,
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you may at your option designate some or all of these sections as invariant. To
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do this, add their titles to the list of Invariant Sections in the Modified
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Version's license notice. These titles must be distinct from any other section
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titles.
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You may add a section Entitled "Endorsements", provided it contains nothing but
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endorsements of your Modified Version by various parties--for example,
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statements of peer review or that the text has been approved by an organization
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as the authoritative definition of a standard.
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You may add a passage of up to five words as a Front-Cover Text, and a passage
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of up to 25 words as a Back-Cover Text, to the end of the list of Cover Texts in
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the Modified Version. Only one passage of Front-Cover Text and one of Back-Cover
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Text may be added by (or through arrangements made by) any one entity. If the
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Document already includes a cover text for the same cover, previously added by
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you or by arrangement made by the same entity you are acting on behalf of, you
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may not add another; but you may replace the old one, on explicit permission
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from the previous publisher that added the old one.
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The author(s) and publisher(s) of the Document do not by this License give
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permission to use their names for publicity for or to assert or imply
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endorsement of any Modified Version.
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5. COMBINING DOCUMENTS
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You may combine the Document with other documents released under this License,
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under the terms defined in section 4 above for modified versions, provided that
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you include in the combination all of the Invariant Sections of all of the
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original documents, unmodified, and list them all as Invariant Sections of your
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combined work in its license notice, and that you preserve all their Warranty
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Disclaimers.
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The combined work need only contain one copy of this License, and multiple
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identical Invariant Sections may be replaced with a single copy. If there are
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multiple Invariant Sections with the same name but different contents, make the
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title of each such section unique by adding at the end of it, in parentheses,
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the name of the original author or publisher of that section if known, or else
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a unique number. Make the same adjustment to the section titles in the list of
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Invariant Sections in the license notice of the combined work.
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In the combination, you must combine any sections Entitled "History" in the
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various original documents, forming one section Entitled "History"; likewise
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combine any sections Entitled "Acknowledgements", and any sections Entitled
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"Dedications". You must delete all sections Entitled "Endorsements."
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6. COLLECTIONS OF DOCUMENTS
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You may make a collection consisting of the Document and other documents
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released under this License, and replace the individual copies of this License
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in the various documents with a single copy that is included in the collection,
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provided that you follow the rules of this License for verbatim copying of each
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of the documents in all other respects.
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You may extract a single document from such a collection, and distribute it
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individually under this License, provided you insert a copy of this License into
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the extracted document, and follow this License in all other respects regarding
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verbatim copying of that document.
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7. AGGREGATION WITH INDEPENDENT WORKS
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A compilation of the Document or its derivatives with other separate and
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independent documents or works, in or on a volume of a storage or distribution
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medium, is called an "aggregate" if the copyright resulting from the compilation
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is not used to limit the legal rights of the compilation's users beyond what the
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individual works permit. When the Document is included in an aggregate, this
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License does not apply to the other works in the aggregate which are not
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themselves derivative works of the Document.
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If the Cover Text requirement of section 3 is applicable to these copies of the
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Document, then if the Document is less than one half of the entire aggregate,
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the Document's Cover Texts may be placed on covers that bracket the Document
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within the aggregate, or the electronic equivalent of covers if the Document is
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in electronic form. Otherwise they must appear on printed covers that bracket
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the whole aggregate.
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8. TRANSLATION
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Translation is considered a kind of modification, so you may distribute
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translations of the Document under the terms of section 4. Replacing Invariant
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Sections with translations requires special permission from their copyright
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holders, but you may include translations of some or all Invariant Sections in
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addition to the original versions of these Invariant Sections. You may include a
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translation of this License, and all the license notices in the Document, and
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any Warranty Disclaimers, provided that you also include the original English
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version of this License and the original versions of those notices and
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disclaimers. In case of a disagreement between the translation and the original
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version of this License or a notice or disclaimer, the original version will
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prevail.
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If a section in the Document is Entitled "Acknowledgements", "Dedications", or
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"History", the requirement (section 4) to Preserve its Title (section 1) will
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typically require changing the actual title.
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9. TERMINATION
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You may not copy, modify, sublicense, or distribute the Document except as
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expressly provided for under this License. Any other attempt to copy, modify,
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sublicense or distribute the Document 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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10. FUTURE REVISIONS OF THIS LICENSE
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The Free Software Foundation may publish new, revised versions of the GNU Free
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Documentation License from time to time. Such new versions will be similar in
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spirit to the present version, but may differ in detail to address new problems
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or concerns. See http://www.gnu.org/copyleft/.
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Each version of the License is given a distinguishing version number. If the
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Document specifies that a particular numbered version of this License "or any
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later version" applies to it, you have the option of following the terms and
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conditions either of that specified version or of any later version that has
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been published (not as a draft) by the Free Software Foundation. If the Document
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does not specify a version number of this License, you may choose any version
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ever published (not as a draft) by the Free Software Foundation. How to use
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this License for your documents
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To use this License in a document you have written, include a copy of the
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License in the document and put the following copyright and license notices just
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after the title page:
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Copyright (c) YEAR YOUR NAME.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.2
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
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Texts. A copy of the license is included in the section entitled "GNU
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Free Documentation License".
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If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, replace
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the "with...Texts." line with this:
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with the Invariant Sections being LIST THEIR TITLES, with the
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Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
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If you have Invariant Sections without Cover Texts, or some other combination of
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the three, merge those two alternatives to suit the situation.
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If your document contains nontrivial examples of program code, we recommend
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releasing these examples in parallel under your choice of free software license,
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such as the GNU General Public License, to permit their use in free software.
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