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1@c The GNU General Public License.
2@center Version 3, 29 June 2007
3
4@c This file is intended to be included within another document,
5@c hence no sectioning command or @node.
6
7@display
8Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/}
9
10Everyone is permitted to copy and distribute verbatim copies of this
11license document, but changing it is not allowed.
12@end display
13
14@heading Preamble
15
16The GNU General Public License is a free, copyleft license for
17software and other kinds of works.
18
19The licenses for most software and other practical works are designed
20to take away your freedom to share and change the works. By contrast,
21the GNU General Public License is intended to guarantee your freedom
22to share and change all versions of a program---to make sure it remains
23free software for all its users. We, the Free Software Foundation,
24use the GNU General Public License for most of our software; it
25applies also to any other work released this way by its authors. You
26can apply it to your programs, too.
27
28When we speak of free software, we are referring to freedom, not
29price. Our General Public Licenses are designed to make sure that you
30have the freedom to distribute copies of free software (and charge for
31them if you wish), that you receive source code or can get it if you
32want it, that you can change the software or use pieces of it in new
33free programs, and that you know you can do these things.
34
35To protect your rights, we need to prevent others from denying you
36these rights or asking you to surrender the rights. Therefore, you
37have certain responsibilities if you distribute copies of the
38software, or if you modify it: responsibilities to respect the freedom
39of others.
40
41For example, if you distribute copies of such a program, whether
42gratis or for a fee, you must pass on to the recipients the same
43freedoms that you received. You must make sure that they, too,
44receive or can get the source code. And you must show them these
45terms so they know their rights.
46
47Developers that use the GNU GPL protect your rights with two steps:
48(1) assert copyright on the software, and (2) offer you this License
49giving you legal permission to copy, distribute and/or modify it.
50
51For the developers' and authors' protection, the GPL clearly explains
52that there is no warranty for this free software. For both users' and
53authors' sake, the GPL requires that modified versions be marked as
54changed, so that their problems will not be attributed erroneously to
55authors of previous versions.
56
57Some devices are designed to deny users access to install or run
58modified versions of the software inside them, although the
59manufacturer can do so. This is fundamentally incompatible with the
60aim of protecting users' freedom to change the software. The
61systematic pattern of such abuse occurs in the area of products for
62individuals to use, which is precisely where it is most unacceptable.
63Therefore, we have designed this version of the GPL to prohibit the
64practice for those products. If such problems arise substantially in
65other domains, we stand ready to extend this provision to those
66domains in future versions of the GPL, as needed to protect the
67freedom of users.
68
69Finally, every program is threatened constantly by software patents.
70States should not allow patents to restrict development and use of
71software on general-purpose computers, but in those that do, we wish
72to avoid the special danger that patents applied to a free program
73could make it effectively proprietary. To prevent this, the GPL
74assures that patents cannot be used to render the program non-free.
75
76The precise terms and conditions for copying, distribution and
77modification follow.
78
79@heading TERMS AND CONDITIONS
80
81@enumerate 0
82@item Definitions.
83
84``This License'' refers to version 3 of the GNU General Public License.
85
86``Copyright'' also means copyright-like laws that apply to other kinds
87of works, such as semiconductor masks.
88
89``The Program'' refers to any copyrightable work licensed under this
90License. Each licensee is addressed as ``you''. ``Licensees'' and
91``recipients'' may be individuals or organizations.
92
93To ``modify'' a work means to copy from or adapt all or part of the work
94in a fashion requiring copyright permission, other than the making of
95an exact copy. The resulting work is called a ``modified version'' of
96the earlier work or a work ``based on'' the earlier work.
97
98A ``covered work'' means either the unmodified Program or a work based
99on the Program.
100
101To ``propagate'' a work means to do anything with it that, without
102permission, would make you directly or secondarily liable for
103infringement under applicable copyright law, except executing it on a
104computer or modifying a private copy. Propagation includes copying,
105distribution (with or without modification), making available to the
106public, and in some countries other activities as well.
107
108To ``convey'' a work means any kind of propagation that enables other
109parties to make or receive copies. Mere interaction with a user
110through a computer network, with no transfer of a copy, is not
111conveying.
112
113An interactive user interface displays ``Appropriate Legal Notices'' to
114the extent that it includes a convenient and prominently visible
115feature that (1) displays an appropriate copyright notice, and (2)
116tells the user that there is no warranty for the work (except to the
117extent that warranties are provided), that licensees may convey the
118work under this License, and how to view a copy of this License. If
119the interface presents a list of user commands or options, such as a
120menu, a prominent item in the list meets this criterion.
121
122@item Source Code.
123
124The ``source code'' for a work means the preferred form of the work for
125making modifications to it. ``Object code'' means any non-source form
126of a work.
127
128A ``Standard Interface'' means an interface that either is an official
129standard defined by a recognized standards body, or, in the case of
130interfaces specified for a particular programming language, one that
131is widely used among developers working in that language.
132
133The ``System Libraries'' of an executable work include anything, other
134than the work as a whole, that (a) is included in the normal form of
135packaging a Major Component, but which is not part of that Major
136Component, and (b) serves only to enable use of the work with that
137Major Component, or to implement a Standard Interface for which an
138implementation is available to the public in source code form. A
139``Major Component'', in this context, means a major essential component
140(kernel, window system, and so on) of the specific operating system
141(if any) on which the executable work runs, or a compiler used to
142produce the work, or an object code interpreter used to run it.
143
144The ``Corresponding Source'' for a work in object code form means all
145the source code needed to generate, install, and (for an executable
146work) run the object code and to modify the work, including scripts to
147control those activities. However, it does not include the work's
148System Libraries, or general-purpose tools or generally available free
149programs which are used unmodified in performing those activities but
150which are not part of the work. For example, Corresponding Source
151includes interface definition files associated with source files for
152the work, and the source code for shared libraries and dynamically
153linked subprograms that the work is specifically designed to require,
154such as by intimate data communication or control flow between those
155subprograms and other parts of the work.
156
157The Corresponding Source need not include anything that users can
158regenerate automatically from other parts of the Corresponding Source.
159
160The Corresponding Source for a work in source code form is that same
161work.
162
163@item Basic Permissions.
164
165All rights granted under this License are granted for the term of
166copyright on the Program, and are irrevocable provided the stated
167conditions are met. This License explicitly affirms your unlimited
168permission to run the unmodified Program. The output from running a
169covered work is covered by this License only if the output, given its
170content, constitutes a covered work. This License acknowledges your
171rights of fair use or other equivalent, as provided by copyright law.
172
173You may make, run and propagate covered works that you do not convey,
174without conditions so long as your license otherwise remains in force.
175You may convey covered works to others for the sole purpose of having
176them make modifications exclusively for you, or provide you with
177facilities for running those works, provided that you comply with the
178terms of this License in conveying all material for which you do not
179control copyright. Those thus making or running the covered works for
180you must do so exclusively on your behalf, under your direction and
181control, on terms that prohibit them from making any copies of your
182copyrighted material outside their relationship with you.
183
184Conveying under any other circumstances is permitted solely under the
185conditions stated below. Sublicensing is not allowed; section 10
186makes it unnecessary.
187
188@item Protecting Users' Legal Rights From Anti-Circumvention Law.
189
190No covered work shall be deemed part of an effective technological
191measure under any applicable law fulfilling obligations under article
19211 of the WIPO copyright treaty adopted on 20 December 1996, or
193similar laws prohibiting or restricting circumvention of such
194measures.
195
196When you convey a covered work, you waive any legal power to forbid
197circumvention of technological measures to the extent such
198circumvention is effected by exercising rights under this License with
199respect to the covered work, and you disclaim any intention to limit
200operation or modification of the work as a means of enforcing, against
201the work's users, your or third parties' legal rights to forbid
202circumvention of technological measures.
203
204@item Conveying Verbatim Copies.
205
206You may convey verbatim copies of the Program's source code as you
207receive it, in any medium, provided that you conspicuously and
208appropriately publish on each copy an appropriate copyright notice;
209keep intact all notices stating that this License and any
210non-permissive terms added in accord with section 7 apply to the code;
211keep intact all notices of the absence of any warranty; and give all
212recipients a copy of this License along with the Program.
213
214You may charge any price or no price for each copy that you convey,
215and you may offer support or warranty protection for a fee.
216
217@item Conveying Modified Source Versions.
218
219You may convey a work based on the Program, or the modifications to
220produce it from the Program, in the form of source code under the
221terms of section 4, provided that you also meet all of these
222conditions:
223
224@enumerate a
225@item
226The work must carry prominent notices stating that you modified it,
227and giving a relevant date.
228
229@item
230The work must carry prominent notices stating that it is released
231under this License and any conditions added under section 7. This
232requirement modifies the requirement in section 4 to ``keep intact all
233notices''.
234
235@item
236You must license the entire work, as a whole, under this License to
237anyone who comes into possession of a copy. This License will
238therefore apply, along with any applicable section 7 additional terms,
239to the whole of the work, and all its parts, regardless of how they
240are packaged. This License gives no permission to license the work in
241any other way, but it does not invalidate such permission if you have
242separately received it.
243
244@item
245If the work has interactive user interfaces, each must display
246Appropriate Legal Notices; however, if the Program has interactive
247interfaces that do not display Appropriate Legal Notices, your work
248need not make them do so.
249@end enumerate
250
251A compilation of a covered work with other separate and independent
252works, which are not by their nature extensions of the covered work,
253and which are not combined with it such as to form a larger program,
254in or on a volume of a storage or distribution medium, is called an
255``aggregate'' if the compilation and its resulting copyright are not
256used to limit the access or legal rights of the compilation's users
257beyond what the individual works permit. Inclusion of a covered work
258in an aggregate does not cause this License to apply to the other
259parts of the aggregate.
260
261@item Conveying Non-Source Forms.
262
263You may convey a covered work in object code form under the terms of
264sections 4 and 5, provided that you also convey the machine-readable
265Corresponding Source under the terms of this License, in one of these
266ways:
267
268@enumerate a
269@item
270Convey the object code in, or embodied in, a physical product
271(including a physical distribution medium), accompanied by the
272Corresponding Source fixed on a durable physical medium customarily
273used for software interchange.
274
275@item
276Convey the object code in, or embodied in, a physical product
277(including a physical distribution medium), accompanied by a written
278offer, valid for at least three years and valid for as long as you
279offer spare parts or customer support for that product model, to give
280anyone who possesses the object code either (1) a copy of the
281Corresponding Source for all the software in the product that is
282covered by this License, on a durable physical medium customarily used
283for software interchange, for a price no more than your reasonable
284cost of physically performing this conveying of source, or (2) access
285to copy the Corresponding Source from a network server at no charge.
286
287@item
288Convey individual copies of the object code with a copy of the written
289offer to provide the Corresponding Source. This alternative is
290allowed only occasionally and noncommercially, and only if you
291received the object code with such an offer, in accord with subsection
2926b.
293
294@item
295Convey the object code by offering access from a designated place
296(gratis or for a charge), and offer equivalent access to the
297Corresponding Source in the same way through the same place at no
298further charge. You need not require recipients to copy the
299Corresponding Source along with the object code. If the place to copy
300the object code is a network server, the Corresponding Source may be
301on a different server (operated by you or a third party) that supports
302equivalent copying facilities, provided you maintain clear directions
303next to the object code saying where to find the Corresponding Source.
304Regardless of what server hosts the Corresponding Source, you remain
305obligated to ensure that it is available for as long as needed to
306satisfy these requirements.
307
308@item
309Convey the object code using peer-to-peer transmission, provided you
310inform other peers where the object code and Corresponding Source of
311the work are being offered to the general public at no charge under
312subsection 6d.
313
314@end enumerate
315
316A separable portion of the object code, whose source code is excluded
317from the Corresponding Source as a System Library, need not be
318included in conveying the object code work.
319
320A ``User Product'' is either (1) a ``consumer product'', which means any
321tangible personal property which is normally used for personal,
322family, or household purposes, or (2) anything designed or sold for
323incorporation into a dwelling. In determining whether a product is a
324consumer product, doubtful cases shall be resolved in favor of
325coverage. For a particular product received by a particular user,
326``normally used'' refers to a typical or common use of that class of
327product, regardless of the status of the particular user or of the way
328in which the particular user actually uses, or expects or is expected
329to use, the product. A product is a consumer product regardless of
330whether the product has substantial commercial, industrial or
331non-consumer uses, unless such uses represent the only significant
332mode of use of the product.
333
334``Installation Information'' for a User Product means any methods,
335procedures, authorization keys, or other information required to
336install and execute modified versions of a covered work in that User
337Product from a modified version of its Corresponding Source. The
338information must suffice to ensure that the continued functioning of
339the modified object code is in no case prevented or interfered with
340solely because modification has been made.
341
342If you convey an object code work under this section in, or with, or
343specifically for use in, a User Product, and the conveying occurs as
344part of a transaction in which the right of possession and use of the
345User Product is transferred to the recipient in perpetuity or for a
346fixed term (regardless of how the transaction is characterized), the
347Corresponding Source conveyed under this section must be accompanied
348by the Installation Information. But this requirement does not apply
349if neither you nor any third party retains the ability to install
350modified object code on the User Product (for example, the work has
351been installed in ROM).
352
353The requirement to provide Installation Information does not include a
354requirement to continue to provide support service, warranty, or
355updates for a work that has been modified or installed by the
356recipient, or for the User Product in which it has been modified or
357installed. Access to a network may be denied when the modification
358itself materially and adversely affects the operation of the network
359or violates the rules and protocols for communication across the
360network.
361
362Corresponding Source conveyed, and Installation Information provided,
363in accord with this section must be in a format that is publicly
364documented (and with an implementation available to the public in
365source code form), and must require no special password or key for
366unpacking, reading or copying.
367
368@item Additional Terms.
369
370``Additional permissions'' are terms that supplement the terms of this
371License by making exceptions from one or more of its conditions.
372Additional permissions that are applicable to the entire Program shall
373be treated as though they were included in this License, to the extent
374that they are valid under applicable law. If additional permissions
375apply only to part of the Program, that part may be used separately
376under those permissions, but the entire Program remains governed by
377this License without regard to the additional permissions.
378
379When you convey a copy of a covered work, you may at your option
380remove any additional permissions from that copy, or from any part of
381it. (Additional permissions may be written to require their own
382removal in certain cases when you modify the work.) You may place
383additional permissions on material, added by you to a covered work,
384for which you have or can give appropriate copyright permission.
385
386Notwithstanding any other provision of this License, for material you
387add to a covered work, you may (if authorized by the copyright holders
388of that material) supplement the terms of this License with terms:
389
390@enumerate a
391@item
392Disclaiming warranty or limiting liability differently from the terms
393of sections 15 and 16 of this License; or
394
395@item
396Requiring preservation of specified reasonable legal notices or author
397attributions in that material or in the Appropriate Legal Notices
398displayed by works containing it; or
399
400@item
401Prohibiting misrepresentation of the origin of that material, or
402requiring that modified versions of such material be marked in
403reasonable ways as different from the original version; or
404
405@item
406Limiting the use for publicity purposes of names of licensors or
407authors of the material; or
408
409@item
410Declining to grant rights under trademark law for use of some trade
411names, trademarks, or service marks; or
412
413@item
414Requiring indemnification of licensors and authors of that material by
415anyone who conveys the material (or modified versions of it) with
416contractual assumptions of liability to the recipient, for any
417liability that these contractual assumptions directly impose on those
418licensors and authors.
419@end enumerate
420
421All other non-permissive additional terms are considered ``further
422restrictions'' within the meaning of section 10. If the Program as you
423received it, or any part of it, contains a notice stating that it is
424governed by this License along with a term that is a further
425restriction, you may remove that term. If a license document contains
426a further restriction but permits relicensing or conveying under this
427License, you may add to a covered work material governed by the terms
428of that license document, provided that the further restriction does
429not survive such relicensing or conveying.
430
431If you add terms to a covered work in accord with this section, you
432must place, in the relevant source files, a statement of the
433additional terms that apply to those files, or a notice indicating
434where to find the applicable terms.
435
436Additional terms, permissive or non-permissive, may be stated in the
437form of a separately written license, or stated as exceptions; the
438above requirements apply either way.
439
440@item Termination.
441
442You may not propagate or modify a covered work except as expressly
443provided under this License. Any attempt otherwise to propagate or
444modify it is void, and will automatically terminate your rights under
445this License (including any patent licenses granted under the third
446paragraph of section 11).
447
448However, if you cease all violation of this License, then your license
449from a particular copyright holder is reinstated (a) provisionally,
450unless and until the copyright holder explicitly and finally
451terminates your license, and (b) permanently, if the copyright holder
452fails to notify you of the violation by some reasonable means prior to
45360 days after the cessation.
454
455Moreover, your license from a particular copyright holder is
456reinstated permanently if the copyright holder notifies you of the
457violation by some reasonable means, this is the first time you have
458received notice of violation of this License (for any work) from that
459copyright holder, and you cure the violation prior to 30 days after
460your receipt of the notice.
461
462Termination of your rights under this section does not terminate the
463licenses of parties who have received copies or rights from you under
464this License. If your rights have been terminated and not permanently
465reinstated, you do not qualify to receive new licenses for the same
466material under section 10.
467
468@item Acceptance Not Required for Having Copies.
469
470You are not required to accept this License in order to receive or run
471a copy of the Program. Ancillary propagation of a covered work
472occurring solely as a consequence of using peer-to-peer transmission
473to receive a copy likewise does not require acceptance. However,
474nothing other than this License grants you permission to propagate or
475modify any covered work. These actions infringe copyright if you do
476not accept this License. Therefore, by modifying or propagating a
477covered work, you indicate your acceptance of this License to do so.
478
479@item Automatic Licensing of Downstream Recipients.
480
481Each time you convey a covered work, the recipient automatically
482receives a license from the original licensors, to run, modify and
483propagate that work, subject to this License. You are not responsible
484for enforcing compliance by third parties with this License.
485
486An ``entity transaction'' is a transaction transferring control of an
487organization, or substantially all assets of one, or subdividing an
488organization, or merging organizations. If propagation of a covered
489work results from an entity transaction, each party to that
490transaction who receives a copy of the work also receives whatever
491licenses to the work the party's predecessor in interest had or could
492give under the previous paragraph, plus a right to possession of the
493Corresponding Source of the work from the predecessor in interest, if
494the predecessor has it or can get it with reasonable efforts.
495
496You may not impose any further restrictions on the exercise of the
497rights granted or affirmed under this License. For example, you may
498not impose a license fee, royalty, or other charge for exercise of
499rights granted under this License, and you may not initiate litigation
500(including a cross-claim or counterclaim in a lawsuit) alleging that
501any patent claim is infringed by making, using, selling, offering for
502sale, or importing the Program or any portion of it.
503
504@item Patents.
505
506A ``contributor'' is a copyright holder who authorizes use under this
507License of the Program or a work on which the Program is based. The
508work thus licensed is called the contributor's ``contributor version''.
509
510A contributor's ``essential patent claims'' are all patent claims owned
511or controlled by the contributor, whether already acquired or
512hereafter acquired, that would be infringed by some manner, permitted
513by this License, of making, using, or selling its contributor version,
514but do not include claims that would be infringed only as a
515consequence of further modification of the contributor version. For
516purposes of this definition, ``control'' includes the right to grant
517patent sublicenses in a manner consistent with the requirements of
518this License.
519
520Each contributor grants you a non-exclusive, worldwide, royalty-free
521patent license under the contributor's essential patent claims, to
522make, use, sell, offer for sale, import and otherwise run, modify and
523propagate the contents of its contributor version.
524
525In the following three paragraphs, a ``patent license'' is any express
526agreement or commitment, however denominated, not to enforce a patent
527(such as an express permission to practice a patent or covenant not to
528sue for patent infringement). To ``grant'' such a patent license to a
529party means to make such an agreement or commitment not to enforce a
530patent against the party.
531
532If you convey a covered work, knowingly relying on a patent license,
533and the Corresponding Source of the work is not available for anyone
534to copy, free of charge and under the terms of this License, through a
535publicly available network server or other readily accessible means,
536then you must either (1) cause the Corresponding Source to be so
537available, or (2) arrange to deprive yourself of the benefit of the
538patent license for this particular work, or (3) arrange, in a manner
539consistent with the requirements of this License, to extend the patent
540license to downstream recipients. ``Knowingly relying'' means you have
541actual knowledge that, but for the patent license, your conveying the
542covered work in a country, or your recipient's use of the covered work
543in a country, would infringe one or more identifiable patents in that
544country that you have reason to believe are valid.
545
546If, pursuant to or in connection with a single transaction or
547arrangement, you convey, or propagate by procuring conveyance of, a
548covered work, and grant a patent license to some of the parties
549receiving the covered work authorizing them to use, propagate, modify
550or convey a specific copy of the covered work, then the patent license
551you grant is automatically extended to all recipients of the covered
552work and works based on it.
553
554A patent license is ``discriminatory'' if it does not include within the
555scope of its coverage, prohibits the exercise of, or is conditioned on
556the non-exercise of one or more of the rights that are specifically
557granted under this License. You may not convey a covered work if you
558are a party to an arrangement with a third party that is in the
559business of distributing software, under which you make payment to the
560third party based on the extent of your activity of conveying the
561work, and under which the third party grants, to any of the parties
562who would receive the covered work from you, a discriminatory patent
563license (a) in connection with copies of the covered work conveyed by
564you (or copies made from those copies), or (b) primarily for and in
565connection with specific products or compilations that contain the
566covered work, unless you entered into that arrangement, or that patent
567license was granted, prior to 28 March 2007.
568
569Nothing in this License shall be construed as excluding or limiting
570any implied license or other defenses to infringement that may
571otherwise be available to you under applicable patent law.
572
573@item No Surrender of Others' Freedom.
574
575If conditions are imposed on you (whether by court order, agreement or
576otherwise) that contradict the conditions of this License, they do not
577excuse you from the conditions of this License. If you cannot convey
578a covered work so as to satisfy simultaneously your obligations under
579this License and any other pertinent obligations, then as a
580consequence you may not convey it at all. For example, if you agree
581to terms that obligate you to collect a royalty for further conveying
582from those to whom you convey the Program, the only way you could
583satisfy both those terms and this License would be to refrain entirely
584from conveying the Program.
585
586@item Use with the GNU Affero General Public License.
587
588Notwithstanding any other provision of this License, you have
589permission to link or combine any covered work with a work licensed
590under version 3 of the GNU Affero General Public License into a single
591combined work, and to convey the resulting work. The terms of this
592License will continue to apply to the part which is the covered work,
593but the special requirements of the GNU Affero General Public License,
594section 13, concerning interaction through a network will apply to the
595combination as such.
596
597@item Revised Versions of this License.
598
599The Free Software Foundation may publish revised and/or new versions
600of the GNU General Public License from time to time. Such new
601versions will be similar in spirit to the present version, but may
602differ in detail to address new problems or concerns.
603
604Each version is given a distinguishing version number. If the Program
605specifies that a certain numbered version of the GNU General Public
606License ``or any later version'' applies to it, you have the option of
607following the terms and conditions either of that numbered version or
608of any later version published by the Free Software Foundation. If
609the Program does not specify a version number of the GNU General
610Public License, you may choose any version ever published by the Free
611Software Foundation.
612
613If the Program specifies that a proxy can decide which future versions
614of the GNU General Public License can be used, that proxy's public
615statement of acceptance of a version permanently authorizes you to
616choose that version for the Program.
617
618Later license versions may give you additional or different
619permissions. However, no additional obligations are imposed on any
620author or copyright holder as a result of your choosing to follow a
621later version.
622
623@item Disclaimer of Warranty.
624
625THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
626APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
627HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT
628WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
629LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
630A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
631PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
632DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
633CORRECTION.
634
635@item Limitation of Liability.
636
637IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
638WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
639CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
640INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
641ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
642NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
643LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
644TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
645PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
646
647@item Interpretation of Sections 15 and 16.
648
649If the disclaimer of warranty and limitation of liability provided
650above cannot be given local legal effect according to their terms,
651reviewing courts shall apply local law that most closely approximates
652an absolute waiver of all civil liability in connection with the
653Program, unless a warranty or assumption of liability accompanies a
654copy of the Program in return for a fee.
655
656@end enumerate
657
658@heading END OF TERMS AND CONDITIONS
659
660@heading How to Apply These Terms to Your New Programs
661
662If you develop a new program, and you want it to be of the greatest
663possible use to the public, the best way to achieve this is to make it
664free software which everyone can redistribute and change under these
665terms.
666
667To do so, attach the following notices to the program. It is safest
668to attach them to the start of each source file to most effectively
669state the exclusion of warranty; and each file should have at least
670the ``copyright'' line and a pointer to where the full notice is found.
671
672@smallexample
673@var{one line to give the program's name and a brief idea of what it does.}
674Copyright (C) @var{year} @var{name of author}
675
676This program is free software: you can redistribute it and/or modify
677it under the terms of the GNU General Public License as published by
678the Free Software Foundation, either version 3 of the License, or (at
679your option) any later version.
680
681This program is distributed in the hope that it will be useful, but
682WITHOUT ANY WARRANTY; without even the implied warranty of
683MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
684General Public License for more details.
685
686You should have received a copy of the GNU General Public License
687along with this program. If not, see @url{http://www.gnu.org/licenses/}.
688@end smallexample
689
690Also add information on how to contact you by electronic and paper mail.
691
692If the program does terminal interaction, make it output a short
693notice like this when it starts in an interactive mode:
694
695@smallexample
696@var{program} Copyright (C) @var{year} @var{name of author}
697This program comes with ABSOLUTELY NO WARRANTY; for details type @samp{show w}.
698This is free software, and you are welcome to redistribute it
699under certain conditions; type @samp{show c} for details.
700@end smallexample
701
702The hypothetical commands @samp{show w} and @samp{show c} should show
703the appropriate parts of the General Public License. Of course, your
704program's commands might be different; for a GUI interface, you would
705use an ``about box''.
706
707You should also get your employer (if you work as a programmer) or school,
708if any, to sign a ``copyright disclaimer'' for the program, if necessary.
709For more information on this, and how to apply and follow the GNU GPL, see
710@url{http://www.gnu.org/licenses/}.
711
712The GNU General Public License does not permit incorporating your
713program into proprietary programs. If your program is a subroutine
714library, you may consider it more useful to permit linking proprietary
715applications with the library. If this is what you want to do, use
716the GNU Lesser General Public License instead of this License. But
717first, please read @url{http://www.gnu.org/philosophy/why-not-lgpl.html}.