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Updated License from GNU GPLv2 to GNU GPLv3.

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

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GNU 一般公衆利用許諾契約書
バージョン2、1991年6月
日本語訳、2002年5月20日
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
この利用許諾契約書を、一字一句そのままに複製し頒布することは許可する。
しかし変更は認めない。
This is an unofficial translation of the GNU General Public License
into Japanese. It was not published by the Free Software Foundation,
and does not legally state the distribution terms for software that
uses the GNU GPL--only the original English text of the GNU GPL does
that. However, we hope that this translation will help Japanese
speakers understand the GNU GPL better.
(訳: 以下はGNU General Public Licenseの非公式な日本語訳です。これはフ
リーソフトウェア財団(the Free Software Foundataion)によって発表された
ものではなく、GNU GPLを適用したソフトウェアの頒布条件を法的に有効な形
で述べたものではありません。頒布条件としてはGNU GPLの英語版テキストで
指定されているもののみが有効です。しかしながら、私たちはこの翻訳が、
日本語を使用する人々にとってGNU GPLをより良く理解する助けとなることを
望んでいます。)
翻訳は 八田真行<mhatta@gnu.org>が行った。原文は
http://www.gnu.org/licenses/gpl.txtである。誤訳の指摘や改善案を歓迎す
る。
はじめに
ソフトウェア向けライセンスの大半は、あなたがそのソフトウェアを共有した
り変更したりする自由を奪うように設計されています。対照的に、GNU 一般公
衆利用許諾契約書は、あなたがフリーソフトウェアを共有したり変更したりす
る自由を保証する--すなわち、ソフトウェアがそのユーザすべてにとってフリー
であることを保証することを目的としています。この一般公衆利用許諾契約書
はフリーソフトウェア財団のソフトウェアのほとんどに適用されており、また
GNU GPLを適用すると決めたフリーソフトウェア財団以外の作者によるプログ
ラムにも適用されています(いくつかのフリーソフトウェア財団のソフトウェ
アには、GNU GPLではなくGNU ライブラリ一般公衆利用許諾契約書が適用され
ていることもあります)。あなたもまた、ご自分のプログラムにGNU GPLを適用
することが可能です。
私たちがフリーソフトウェアと言うとき、それは利用の自由について言及して
いるのであって、価格は問題にしていません。私たちの一般公衆利用許諾契約
書は、あなたがフリーソフトウェアの複製物を頒布する自由を保証するよう設
計されています(希望に応じてその種のサービスに手数料を課す自由も保証さ
れます)。また、あなたがソースコードを受け取るか、あるいは望めばそれを
入手することが可能であるということ、あなたがソフトウェアを変更し、その
一部を新たなフリーのプログラムで利用できるということ、そして、以上で述
べたようなことができるということがあなたに知らされるということも保証さ
れます。
あなたの権利を守るため、私たちは誰かがあなたの有するこれらの権利を否定
することや、これらの権利を放棄するよう要求することを禁止するという制限
を加える必要があります。よって、あなたがソフトウェアの複製物を頒布した
りそれを変更したりする場合には、これらの制限のためにあなたにある種の責
任が発生することになります。
例えば、あなたがフリーなプログラムの複製物を頒布する場合、有料か無料に
関わらず、あなたは自分が有する権利を全て受領者に与えなければなりません。
また、あなたは彼らもソースコードを受け取るか手に入れることができるよう
保証しなければなりません。そして、あなたは彼らに対して以下で述べる条件
を示し、彼らに自らの持つ権利について知らしめるようにしなければなりませ
ん。
私たちはあなたの権利を二段階の手順を踏んで保護します。(1) まずソフトウェ
アに対して著作権を主張し、そして (2) あなたに対して、ソフトウェアの複
製や頒布または改変についての法的な許可を与えるこの契約書を提示します。
また、各作者や私たちを保護するため、私たちはこのフリーソフトウェアには
何の保証も無いということを誰もが確実に理解するようにし、またソフトウェ
アが誰か他人によって改変され、それが次々と頒布されていったとしても、そ
の受領者は彼らが手に入れたソフトウェアがオリジナルのバージョンでは無い
こと、そして原作者の名声は他人によって持ち込まれた可能性のある問題によっ
て影響されることがないということを周知させたいと思います。
最後に、ソフトウェア特許がいかなるフリーのプログラムの存在にも不断の脅
威を投げかけていますが、私たちは、フリーなプログラムの再頒布者が個々に
特許ライセンスを取得することによって、事実上プログラムを独占的にしてし
まうという危険を避けたいと思います。こういった事態を予防するため、私た
ちはいかなる特許も誰もが自由に利用できるようライセンスされるか、全くラ
イセンスされないかのどちらかでなければならないことを明確にしました。
(訳注: 本契約書で「独占的(proprietary)」とは、ソフトウェアの利用や再頒
布、改変が禁止されているか、許可を得ることが必要とされているか、あるい
は厳しい制限が課せられていて自由にそうすることが事実上できなくなってい
る状態のことを指す。詳しくは
http://www.gnu.org/philosophy/categories.ja.html#ProprietarySoftwareを
参照せよ。)
複製や頒布、改変についての正確な条件と制約を以下で述べていきます。
GNU 一般公衆利用許諾契約書
複製、頒布、改変に関する条件と制約
0. この利用許諾契約書は、そのプログラム(またはその他の著作物)をこの一
般公衆利用許諾契約書の定める条件の下で頒布できるという告知が著作権者に
よって記載されたプログラムまたはその他の著作物全般に適用される。以下で
は、「『プログラム』」とはそのようにしてこの契約書が適用されたプログラ
ムや著作物全般を意味し、また「『プログラム』を基にした著作物」とは『プ
ログラム』やその他著作権法の下で派生物と見なされるもの全般を指す。すな
わち、『プログラム』かその一部を、全く同一のままか、改変を加えたか、あ
るいは他の言語に翻訳された形で含む著作物のことである(「改変」という語
の本来の意味からはずれるが、以下では翻訳も改変の一種と見なす)。それぞ
れの契約者は「あなた」と表現される。
複製や頒布、改変以外の活動はこの契約書ではカバーされない。それらはこの
契約書の対象外である。『プログラム』を実行する行為自体に制限はない。ま
た、そのような『プログラム』の出力結果は、その内容が『プログラム』を基
にした著作物を構成する場合のみこの契約書によって保護される(『プログラ
ム』を実行したことによって作成されたということとは無関係である)。この
ような線引きの妥当性は、『プログラム』が何をするのかに依存する。
1. それぞれの複製物において適切な著作権表示と保証の否認声明(disclaimer
of warranty)を目立つよう適切に掲載し、またこの契約書および一切の保証の
不在に触れた告知すべてをそのまま残し、そしてこの契約書の複製物を『プロ
グラム』のいかなる受領者にも『プログラム』と共に頒布する限り、あなたは
『プログラム』のソースコードの複製物を、あなたが受け取った通りの形で複
製または頒布することができる。媒体は問わない。
あなたは、物理的に複製物を譲渡するという行為に関して手数料を課しても良
いし、希望によっては手数料を取って交換における保護の保証を提供しても良
い。
2. あなたは自分の『プログラム』の複製物かその一部を改変して『プログラ
ム』を基にした著作物を形成し、そのような改変点や著作物を上記第1節の定
める条件の下で複製または頒布することができる。ただし、そのためには以下
の条件すべてを満たしていなければならない:
a) あなたがそれらのファイルを変更したということと変更した日時が良
く分かるよう、改変されたファイルに告示しなければならない。
b) 『プログラム』またはその一部を含む著作物、あるいは『プログラム』
かその一部から派生した著作物を頒布あるいは発表する場合には、その全
体をこの契約書の条件に従って第三者へ無償で利用許諾しなければならな
い。
c) 改変されたプログラムが、通常実行する際に対話的にコマンドを読む
ようになっているならば、そのプログラムを最も一般的な方法で対話的に
実行する際、適切な著作権表示、無保証であること(あるいはあなたが保
証を提供するということ)、ユーザがプログラムをこの契約書で述べた条
件の下で頒布することができるということ、そしてこの契約書の複製物を
閲覧するにはどうしたらよいかというユーザへの説明を含む告知が印刷さ
れるか、あるいは画面に表示されるようにしなければならない(例外とし
て、『プログラム』そのものは対話的であっても通常そのような告知を印
刷しない場合には、『プログラム』を基にしたあなたの著作物にそのよう
な告知を印刷させる必要はない)。
以上の必要条件は全体としての改変された著作物に適用される。著作物の一部
が『プログラム』から派生したものではないと確認でき、それら自身別の独立
した著作物であると合理的に考えられるならば、あなたがそれらを別の著作物
として分けて頒布する場合、そういった部分にはこの契約書とその条件は
適用されない。しかし、あなたが同じ部分を『プログラム』を基にした著作物
全体の一部として頒布するならば、全体としての頒布物は、この契約書が
課す条件に従わなければならない。というのは、この契約書が他の契約者
に与える許可は『プログラム』丸ごと全体に及び、誰が書いたかは関係なく各
部分のすべてを保護するからである。
よって、すべてあなたによって書かれた著作物に対し、権利を主張したりあな
たの権利に異議を申し立てることはこの節の意図するところではない。むしろ、
その趣旨は『プログラム』を基にした派生物ないし集合著作物の頒布を管理す
る権利を行使するということにある。
また、『プログラム』を基にしていないその他の著作物を『プログラム』(あ
るいは『プログラム』を基にした著作物)と一緒に集めただけのものを一巻の
保管装置ないし頒布媒体に収めても、その他の著作物までこの契約書が保
護する対象になるということにはならない。
3. あなたは上記第1節および2節の条件に従い、『プログラム』(あるいは第2
節における派生物)をオブジェクトコードないし実行形式で複製または頒布す
ることができる。ただし、その場合あなたは以下のうちどれか一つを実施しな
ければならない:
a) 著作物に、『プログラム』に対応した完全かつ機械で読み取り可能な
ソースコードを添付する。ただし、ソースコードは上記第1節および2節の
条件に従いソフトウェアの交換で習慣的に使われる媒体で頒布しなければ
ならない。あるいは、
b) 著作物に、いかなる第三者に対しても、『プログラム』に対応した完
全かつ機械で読み取り可能なソースコードを、頒布に要する物理的コスト
を上回らない程度の手数料と引き換えに提供する旨述べた少なくとも3年
間は有効な書面になった申し出を添える。ただし、ソースコードは上記第
1節および2節の条件に従いソフトウェアの交換で習慣的に使われる媒体で
頒布しなければならない。あるいは、
c) 対応するソースコード頒布の申し出に際して、あなたが得た情報を一
緒に引き渡す(この選択肢は、営利を目的としない頒布であって、かつあ
なたが上記小節bで指定されているような申し出と共にオブジェクトコー
ドあるいは実行形式のプログラムしか入手していない場合に限り許可され
る)。
著作物のソースコードとは、それに対して改変を加える上で好ましいとされる
著作物の形式を意味する。ある実行形式の著作物にとって完全なソースコード
とは、それが含むモジュールすべてのソースコード全部に加え、関連するイン
ターフェース定義ファイルのすべてとライブラリのコンパイルやインストール
を制御するために使われるスクリプトをも加えたものを意味する。しかし特別
な例外として、そのコンポーネント自体が実行形式に付随するのでは無い限り、
頒布されるものの中に、実行形式が実行されるオペレーティングシステムの主
要なコンポーネント(コンパイラやカーネル等)と通常一緒に(ソースかバイナ
リ形式のどちらかで)頒布されるものを含んでいる必要はないとする。
実行形式またはオブジェクトコードの頒布が、指定された場所からコピーする
ためのアクセス手段を提供することで為されるとして、その上でソースコード
も同等のアクセス手段によって同じ場所からコピーできるようになっているな
らば、第三者がオブジェクトコードと一緒にソースも強制的にコピーさせられ
るようになっていなくてもソースコード頒布の条件を満たしているものとする。
4. あなたは『プログラム』を、この契約書において明確に提示された行
為を除き複製や改変、サブライセンス、あるいは頒布してはならない。他に
『プログラム』を複製や改変、サブライセンス、あるいは頒布する企てはすべ
て無効であり、この契約書の下でのあなたの権利を自動的に終結させるこ
とになろう。しかし、複製物や権利をこの契約書に従ってあなたから得た
人々に関しては、そのような人々がこの契約書に完全に従っている限り彼
らのライセンスまで終結することはない。
5. あなたはこの契約書を受諾する必要は無い。というのは、あなたはこ
れに署名していないからである。しかし、この契約書以外にあなたに対し
て『プログラム』やその派生物を変更、頒布する許可を与えるものは存在しな
い。これらの行為は、あなたがこの契約書を受け入れない限り法によって
禁じられている。そこで、『プログラム』(あるいは『プログラム』を基にし
た著作物のすべて)を改変ないし頒布することにより、あなたは自分がそのよ
うな行為を行うためにこの契約書を受諾したということ、そして『プログ
ラム』とそれに基づく著作物の複製や頒布、改変についてこの契約書が課
す制約と条件をすべて受け入れたということを示したものと見なす。
6. あなたが『プログラム』(または『プログラム』を基にした著作物全般)を
再頒布するたびに、その受領者は元々のライセンス許可者から、この契約書で
指定された条件と制約の下で『プログラム』を複製や頒布、あるいは改変する
許可を自動的に得るものとする。あなたは、受領者がここで認められた権利を
行使することに関してこれ以上他のいかなる制限も課すことができない。あな
たには、第三者がこの契約書に従うことを強制する責任はない。
7. 特許侵害あるいはその他の理由(特許関係に限らない)から、裁判所の判決
あるいは申し立ての結果としてあなたに(裁判所命令や契約などにより)この契
約書の条件と矛盾する制約が課された場合でも、あなたがこの契約書の条件を
免除されるわけではない。もしこの契約書の下であなたに課せられた責任と他
の関連する責任を同時に満たすような形で頒布できないならば、結果としてあ
なたは『プログラム』を頒布することが全くできないということである。例え
ば特許ライセンスが、あなたから直接間接を問わずコピーを受け取った人が誰
でも『プログラム』を使用料無料で再頒布することを認めていない場合、あな
たがその制約とこの契約書を両方とも満たすには『プログラム』の頒布を完全
に中止するしかないだろう。
この節の一部分が特定の状況の下で無効ないし実施不可能な場合でも、節の残
りの部分は適用されるよう意図されている。その他の状況では節が全体として
適用されるよう意図されている。
特許やその他の財産権を侵害したり、そのような権利の主張の効力に異議を唱
えたりするようあなたを誘惑することがこの節の目的ではない。この節には、
人々によってライセンス慣行として実現されてきた、フリーソフトウェア頒布
のシステムの完全性を護るという目的しかない。多くの人々が、フリーソフト
ウェアの頒布システムが首尾一貫して適用されているという信頼に基づき、こ
のシステムを通じて頒布される多様なソフトウェアに寛大な貢献をしてきたの
は事実であるが、人がどのようなシステムを通じてソフトウェアを頒布したい
と思うかはあくまでも作者/寄与者次第であり、あなたが選択を押しつけるこ
とはできない。
この節は、この契約書のこの節以外の部分の一帰結になると考えられるケー
スを徹底的に明らかにすることを目的としている。
8. 『プログラム』の頒布や利用が、ある国においては特許または著作権が主
張されたインターフェースのいずれかによって制限されている場合、『プログ
ラム』にこの契約書を適用した元の著作権者は、そういった国々を排除し
た明確な地理的頒布制限を加え、そこで排除されていない国の中やそれらの国々
の間でのみ頒布が許可されるようにしても構わない。その場合、そのような制
限はこの契約書本文で書かれているのと同様に見なされる。
9. フリーソフトウェア財団は、時によって改訂または新版の一般公衆利用許
諾書を発表することができる。そのような新版は現在のバージョンとその精神
においては似たものになるだろうが、新たな問題や懸念を解決するため細部で
は異なる可能性がある。
それぞれのバージョンには、見分けが付くようにバージョン番号が振られてい
る。『プログラム』においてそれに適用されるこの契約書のバージョン番号が
指定されていて、更に「それ以降のいかなるバージョン」も適用して良いとなっ
ていた場合、あなたは従う条件と制約として、指定のバージョンか、フリーソ
フトウェア財団によって発行された指定のバージョン以降の版のどれか一つの
どちらかを選ぶことが出来る。『プログラム』でライセンスのバージョン番号
が指定されていないならば、あなたは今までにフリーソフトウェア財団から発
行されたバージョンの中から好きに選んで構わない。
10. もしあなたが『プログラム』の一部を、その頒布条件がこの契約書と
異なる他のフリーなプログラムと統合したいならば、作者に連絡して許可を求
めよ。フリーソフトウェア財団が著作権を保有するソフトウェアについては、
フリーソフトウェア財団に連絡せよ。私たちは、このような場合のために特別
な例外を設けることもある。私たちが決定を下すにあたっては、私たちのフリー
ソフトウェアの派生物すべてがフリーな状態に保たれるということと、一般的
にソフトウェアの共有と再利用を促進するという二つの目標を規準に検討され
るであろう。
無保証について
11. 『プログラム』は代価無しに利用が許可されるので、適切な法が認める限
りにおいて、『プログラム』に関するいかなる保証も存在しない。書面で別に
述べる場合を除いて、著作権者、またはその他の団体は、『プログラム』を、
表明されたか言外にかは問わず、商業的適性を保証するほのめかしやある特定
の目的への適合性(に限られない)を含む一切の保証無しに「あるがまま」で提
供する。『プログラム』の質と性能に関するリスクのすべてはあなたに帰属す
る。『プログラム』に欠陥があると判明した場合、あなたは必要な保守点検や
補修、修正に要するコストのすべてを引き受けることになる。
12. 適切な法か書面での同意によって命ぜられない限り、著作権者、または上
記で許可されている通りに『プログラム』を改変または再頒布したその他の団
体は、あなたに対して『プログラム』の利用ないし利用不能で生じた一般的、
特別的、偶然的、必然的な損害(データの消失や不正確な処理、あなたか第三
者が被った損失、あるいは『プログラム』が他のソフトウェアと一緒に動作し
ないという不具合などを含むがそれらに限らない)に一切の責任を負わない。
そのような損害が生ずる可能性について彼らが忠告されていたとしても同様で
ある。
条件と制約終わり
以上の条項をあなたの新しいプログラムに適用する方法
あなたが新しいプログラムを開発したとして、公衆によってそれが利用される
可能性を最大にしたいなら、そのプログラムをこの契約書の条項に従って
誰でも再頒布あるいは変更できるようフリーソフトウェアにするのが最善です。
そのためには、プログラムに以下のような表示を添付してください。その場合、
保証が排除されているということを最も効果的に伝えるために、それぞれのソー
スファイルの冒頭に表示を添付すれば最も安全です。少なくとも、「著作権表
示」という行と全文がある場所へのポインタだけは各ファイルに含めて置いて
ください。
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(訳:
<プログラムの名前と、それが何をするかについての簡単な説明。>
Copyright (C) <西暦年> <作者の名前>
このプログラムはフリーソフトウェアです。あなたはこれを、フリーソフ
トウェア財団によって発行された GNU 一般公衆利用許諾契約書(バージョ
ン2か、希望によってはそれ以降のバージョンのうちどれか)の定める条件
の下で再頒布または改変することができます。
このプログラムは有用であることを願って頒布されますが、*全くの無保
証* です。商業可能性の保証や特定の目的への適合性は、言外に示された
ものも含め全く存在しません。詳しくはGNU 一般公衆利用許諾契約書をご
覧ください。
あなたはこのプログラムと共に、GNU 一般公衆利用許諾契約書の複製物を
一部受け取ったはずです。もし受け取っていなければ、フリーソフトウェ
ア財団まで請求してください(宛先は the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA)。
)
電子ないし紙のメールであなたに問い合わせる方法についての情報も書き加え
ましょう。
プログラムが対話的なものならば、対話モードで起動した際に出力として以下
のような短い告知が表示されるようにしてください:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
(訳:
Gnomovision バージョン 69, Copyright (C) 年 作者の名前
Gnomovision は*全くの無保証*で提供されます。詳しくは「show w」
とタイプして下さい。これはフリーソフトウェアであり、ある条件の下で
再頒布することが奨励されています。詳しくは「show c」とタイプして下
さい。
)
ここで、仮想的なコマンド「show w」と「show c」は一般公衆利用許諾契約書
の適切な部分を表示するようになっていなければなりません。もちろん、あな
たが使うコマンドを「show w」や「show c」と呼ぶ必然性はありませんので、
あなたのプログラムに合わせてマウスのクリックやメニューのアイテムにして
も結構です。
またあなたは、必要ならば(プログラマーとして働いていたら)あなたの雇用主、
あるいは場合によっては学校から、そのプログラムに関する「著作権放棄声明
(copyright disclaimer)」に署名してもらうべきです。以下は例ですので、名
前を変えてください:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
(訳:
Yoyodyne社はここに、James Hackerによって書かれたプログラム
「Gnomovision」(コンパイラへ通すプログラム)に関する一切の著作権の利
益を放棄します。
<Ty Coon氏の署名>、1989年4月1日
Ty Coon、副社長
)
この一般公衆利用許諾契約書では、あなたのプログラムを独占的なプログラム
に統合することを認めていません。あなたのプログラムがサブルーチンライブ
ラリならば、独占的なアプリケーションとあなたのライブラリをリンクするこ
とを許可したほうがより便利であると考えるかもしれません。もしこれがあな
たの望むことならば、この契約書の代わりにGNU ライブラリ一般公衆利用許諾
契約書を適用してください。

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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive
or can get the source code. And you must show them these terms so they
know their rights.
Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software. For both users' and
authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to
authors of previous versions.
Some devices are designed to deny users access to install or run
modified versions of the software inside them, although the manufacturer
can do so. This is fundamentally incompatible with the aim of
protecting users' freedom to change the software. The systematic
pattern of such abuse occurs in the area of products for individuals to
use, which is precisely where it is most unacceptable. Therefore, we
have designed this version of the GPL to prohibit the practice for those
products. If such problems arise substantially in other domains, we
stand ready to extend this provision to those domains in future versions
of the GPL, as needed to protect the freedom of users.
Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
software on general-purpose computers, but in those that do, we wish to
avoid the special danger that patents applied to a free program could
make it effectively proprietary. To prevent this, the GPL assures that
patents cannot be used to render the program non-free.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU General Public License.
"Copyright" also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks.
"The Program" refers to any copyrightable work licensed under this
License. Each licensee is addressed as "you". "Licensees" and
"recipients" may be individuals or organizations.
To "modify" a work means to copy from or adapt all or part of the work
in a fashion requiring copyright permission, other than the making of an
exact copy. The resulting work is called a "modified version" of the
earlier work or a work "based on" the earlier work.
A "covered work" means either the unmodified Program or a work based
on the Program.
To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
computer or modifying a private copy. Propagation includes copying,
distribution (with or without modification), making available to the
public, and in some countries other activities as well.
To "convey" a work means any kind of propagation that enables other
parties to make or receive copies. Mere interaction with a user through
a computer network, with no transfer of a copy, is not conveying.
An interactive user interface displays "Appropriate Legal Notices"
to the extent that it includes a convenient and prominently visible
feature that (1) displays an appropriate copyright notice, and (2)
tells the user that there is no warranty for the work (except to the
extent that warranties are provided), that licensees may convey the
work under this License, and how to view a copy of this License. If
the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.
1. Source Code.
The "source code" for a work means the preferred form of the work
for making modifications to it. "Object code" means any non-source
form of a work.
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interfaces specified for a particular programming language, one that
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than the work as a whole, that (a) is included in the normal form of
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implementation is available to the public in source code form. A
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The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding
Source.
The Corresponding Source for a work in source code form is that
same work.
2. Basic Permissions.
All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
conditions are met. This License explicitly affirms your unlimited
permission to run the unmodified Program. The output from running a
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rights of fair use or other equivalent, as provided by copyright law.
You may make, run and propagate covered works that you do not
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of having them make modifications exclusively for you, or provide you
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for you must do so exclusively on your behalf, under your direction
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similar laws prohibiting or restricting circumvention of such
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When you convey a covered work, you waive any legal power to forbid
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4. Conveying Verbatim Copies.
You may convey verbatim copies of the Program's source code as you
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keep intact all notices stating that this License and any
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keep intact all notices of the absence of any warranty; and give all
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You may charge any price or no price for each copy that you convey,
and you may offer support or warranty protection for a fee.
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produce it from the Program, in the form of source code under the
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b) The work must carry prominent notices stating that it is
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used to limit the access or legal rights of the compilation's users
beyond what the individual works permit. Inclusion of a covered work
in an aggregate does not cause this License to apply to the other
parts of the aggregate.
6. Conveying Non-Source Forms.
You may convey a covered work in object code form under the terms
of sections 4 and 5, provided that you also convey the
machine-readable Corresponding Source under the terms of this License,
in one of these ways:
a) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by the
Corresponding Source fixed on a durable physical medium
customarily used for software interchange.
b) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by a
written offer, valid for at least three years and valid for as
long as you offer spare parts or customer support for that product
model, to give anyone who possesses the object code either (1) a
copy of the Corresponding Source for all the software in the
product that is covered by this License, on a durable physical
medium customarily used for software interchange, for a price no
more than your reasonable cost of physically performing this
conveying of source, or (2) access to copy the
Corresponding Source from a network server at no charge.
c) Convey individual copies of the object code with a copy of the
written offer to provide the Corresponding Source. This
alternative is allowed only occasionally and noncommercially, and
only if you received the object code with such an offer, in accord
with subsection 6b.
d) Convey the object code by offering access from a designated
place (gratis or for a charge), and offer equivalent access to the
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further charge. You need not require recipients to copy the
Corresponding Source along with the object code. If the place to
copy the object code is a network server, the Corresponding Source
may be on a different server (operated by you or a third party)
that supports equivalent copying facilities, provided you maintain
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available for as long as needed to satisfy these requirements.
e) Convey the object code using peer-to-peer transmission, provided
you inform other peers where the object code and Corresponding
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from the Corresponding Source as a System Library, need not be
included in conveying the object code work.
A "User Product" is either (1) a "consumer product", which means any
tangible personal property which is normally used for personal, family,
or household purposes, or (2) anything designed or sold for incorporation
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is a consumer product regardless of whether the product has substantial
commercial, industrial or non-consumer uses, unless such uses represent
the only significant mode of use of the product.
"Installation Information" for a User Product means any methods,
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and execute modified versions of a covered work in that User Product from
a modified version of its Corresponding Source. The information must
suffice to ensure that the continued functioning of the modified object
code is in no case prevented or interfered with solely because
modification has been made.
If you convey an object code work under this section in, or with, or
specifically for use in, a User Product, and the conveying occurs as
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information. But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
been installed in ROM).
The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or updates
for a work that has been modified or installed by the recipient, or for
the User Product in which it has been modified or installed. Access to a
network may be denied when the modification itself materially and
adversely affects the operation of the network or violates the rules and
protocols for communication across the network.
Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
documented (and with an implementation available to the public in
source code form), and must require no special password or key for
unpacking, reading or copying.
7. Additional Terms.
"Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law. If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it. (Additional permissions may be written to require their own
removal in certain cases when you modify the work.) You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:
a) Disclaiming warranty or limiting liability differently from the
terms of sections 15 and 16 of this License; or
b) Requiring preservation of specified reasonable legal notices or
author attributions in that material or in the Appropriate Legal
Notices displayed by works containing it; or
c) Prohibiting misrepresentation of the origin of that material, or
requiring that modified versions of such material be marked in
reasonable ways as different from the original version; or
d) Limiting the use for publicity purposes of names of licensors or
authors of the material; or
e) Declining to grant rights under trademark law for use of some
trade names, trademarks, or service marks; or
f) Requiring indemnification of licensors and authors of that
material by anyone who conveys the material (or modified versions of
it) with contractual assumptions of liability to the recipient, for
any liability that these contractual assumptions directly impose on
those licensors and authors.
All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10. If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
restriction, you may remove that term. If a license document contains
a further restriction but permits relicensing or conveying under this
License, you may add to a covered work material governed by the terms
of that license document, provided that the further restriction does
not survive such relicensing or conveying.
If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
additional terms that apply to those files, or a notice indicating
where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
the above requirements apply either way.
8. Termination.
You may not propagate or modify a covered work except as expressly
provided under this License. Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).
However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.
Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License. If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.
9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or
run a copy of the Program. Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance. However,
nothing other than this License grants you permission to propagate or
modify any covered work. These actions infringe copyright if you do
not accept this License. Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.
10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License. You are not responsible
for enforcing compliance by third parties with this License.
An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations. If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if
the predecessor has it or can get it with reasonable efforts.
You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License. For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.
11. Patents.
A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based. The
work thus licensed is called the contributor's "contributor version".
A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
consequence of further modification of the contributor version. For
purposes of this definition, "control" includes the right to grant
patent sublicenses in a manner consistent with the requirements of
this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims, to
make, use, sell, offer for sale, import and otherwise run, modify and
propagate the contents of its contributor version.
In the following three paragraphs, a "patent license" is any express
agreement or commitment, however denominated, not to enforce a patent
(such as an express permission to practice a patent or covenant not to
sue for patent infringement). To "grant" such a patent license to a
party means to make such an agreement or commitment not to enforce a
patent against the party.
If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients. "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.
A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License. You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Use with the GNU Affero General Public License.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.