1# GNU General Public License
2
3_Version 3, 29 June 2007_\
4_Copyright © 2007 Free Software Foundation, Inc. \<<http://fsf.org/>>_
5
6Everyone is permitted to copy and distribute verbatim copies of this license
7document, but changing it is not allowed.
8
9## Preamble
10
11The GNU General Public License is a free, copyleft license for software and other
12kinds of works.
13
14The licenses for most software and other practical works are designed to take away
15your freedom to share and change the works. By contrast, the GNU General Public
16License is intended to guarantee your freedom to share and change all versions of a
17program--to make sure it remains free software for all its users. We, the Free
18Software Foundation, use the GNU General Public License for most of our software; it
19applies also to any other work released this way by its authors. You can apply it to
20your programs, too.
21
22When we speak of free software, we are referring to freedom, not price. Our General
23Public Licenses are designed to make sure that you have the freedom to distribute
24copies of free software (and charge for them if you wish), that you receive source
25code or can get it if you want it, that you can change the software or use pieces of
26it in new free programs, and that you know you can do these things.
27
28To protect your rights, we need to prevent others from denying you these rights or
29asking you to surrender the rights. Therefore, you have certain responsibilities if
30you distribute copies of the software, or if you modify it: responsibilities to
31respect the freedom of others.
32
33For example, if you distribute copies of such a program, whether gratis or for a fee,
34you must pass on to the recipients the same freedoms that you received. You must make
35sure that they, too, receive or can get the source code. And you must show them these
36terms so they know their rights.
37
38Developers that use the GNU GPL protect your rights with two steps: **(1)** assert
39copyright on the software, and **(2)** offer you this License giving you legal permission
40to copy, distribute and/or modify it.
41
42For the developers' and authors' protection, the GPL clearly explains that there is
43no warranty for this free software. For both users' and authors' sake, the GPL
44requires that modified versions be marked as changed, so that their problems will not
45be attributed erroneously to authors of previous versions.
46
47Some devices are designed to deny users access to install or run modified versions of
48the software inside them, although the manufacturer can do so. This is fundamentally
49incompatible with the aim of protecting users' freedom to change the software. The
50systematic pattern of such abuse occurs in the area of products for individuals to
51use, which is precisely where it is most unacceptable. Therefore, we have designed
52this version of the GPL to prohibit the practice for those products. If such problems
53arise substantially in other domains, we stand ready to extend this provision to
54those domains in future versions of the GPL, as needed to protect the freedom of
55users.
56
57Finally, every program is threatened constantly by software patents. States should
58not allow patents to restrict development and use of software on general-purpose
59computers, but in those that do, we wish to avoid the special danger that patents
60applied to a free program could make it effectively proprietary. To prevent this, the
61GPL assures that patents cannot be used to render the program non-free.
62
63The precise terms and conditions for copying, distribution and modification follow.
64
65## TERMS AND CONDITIONS
66
67### 0. Definitions
68
69“This License” refers to version 3 of the GNU General Public License.
70
71“Copyright” also means copyright-like laws that apply to other kinds of
72works, such as semiconductor masks.
73
74“The Program” refers to any copyrightable work licensed under this
75License. Each licensee is addressed as “you”. “Licensees” and
76“recipients” may be individuals or organizations.
77
78To “modify” a work means to copy from or adapt all or part of the work in
79a fashion requiring copyright permission, other than the making of an exact copy. The
80resulting work is called a “modified version” of the earlier work or a
81work “based on” the earlier work.
82
83A “covered work” means either the unmodified Program or a work based on
84the Program.
85
86To “propagate” a work means to do anything with it that, without
87permission, would make you directly or secondarily liable for infringement under
88applicable copyright law, except executing it on a computer or modifying a private
89copy. Propagation includes copying, distribution (with or without modification),
90making available to the public, and in some countries other activities as well.
91
92To “convey” a work means any kind of propagation that enables other
93parties to make or receive copies. Mere interaction with a user through a computer
94network, with no transfer of a copy, is not conveying.
95
96An interactive user interface displays “Appropriate Legal Notices” to the
97extent that it includes a convenient and prominently visible feature that **(1)**
98displays an appropriate copyright notice, and **(2)** tells the user that there is no
99warranty for the work (except to the extent that warranties are provided), that
100licensees may convey the work under this License, and how to view a copy of this
101License. If the interface presents a list of user commands or options, such as a
102menu, a prominent item in the list meets this criterion.
103
104### 1. Source Code
105
106The “source code” for a work means the preferred form of the work for
107making modifications to it. “Object code” means any non-source form of a
108work.
109
110A “Standard Interface” means an interface that either is an official
111standard defined by a recognized standards body, or, in the case of interfaces
112specified for a particular programming language, one that is widely used among
113developers working in that language.
114
115The “System Libraries” of an executable work include anything, other than
116the work as a whole, that **(a)** is included in the normal form of packaging a Major
117Component, but which is not part of that Major Component, and **(b)** serves only to
118enable use of the work with that Major Component, or to implement a Standard
119Interface for which an implementation is available to the public in source code form.
120A “Major Component”, in this context, means a major essential component
121(kernel, window system, and so on) of the specific operating system (if any) on which
122the executable work runs, or a compiler used to produce the work, or an object code
123interpreter used to run it.
124
125The “Corresponding Source” for a work in object code form means all the
126source code needed to generate, install, and (for an executable work) run the object
127code and to modify the work, including scripts to control those activities. However,
128it does not include the work's System Libraries, or general-purpose tools or
129generally available free programs which are used unmodified in performing those
130activities but which are not part of the work. For example, Corresponding Source
131includes interface definition files associated with source files for the work, and
132the source code for shared libraries and dynamically linked subprograms that the work
133is specifically designed to require, such as by intimate data communication or
134control flow between those subprograms and other parts of the work.
135
136The Corresponding Source need not include anything that users can regenerate
137automatically from other parts of the Corresponding Source.
138
139The Corresponding Source for a work in source code form is that same work.
140
141### 2. Basic Permissions
142
143All rights granted under this License are granted for the term of copyright on the
144Program, and are irrevocable provided the stated conditions are met. This License
145explicitly affirms your unlimited permission to run the unmodified Program. The
146output from running a covered work is covered by this License only if the output,
147given its content, constitutes a covered work. This License acknowledges your rights
148of fair use or other equivalent, as provided by copyright law.
149
150You may make, run and propagate covered works that you do not convey, without
151conditions so long as your license otherwise remains in force. You may convey covered
152works to others for the sole purpose of having them make modifications exclusively
153for you, or provide you with facilities for running those works, provided that you
154comply with the terms of this License in conveying all material for which you do not
155control copyright. Those thus making or running the covered works for you must do so
156exclusively on your behalf, under your direction and control, on terms that prohibit
157them from making any copies of your copyrighted material outside their relationship
158with you.
159
160Conveying under any other circumstances is permitted solely under the conditions
161stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
162
163### 3. Protecting Users' Legal Rights From Anti-Circumvention Law
164
165No covered work shall be deemed part of an effective technological measure under any
166applicable law fulfilling obligations under article 11 of the WIPO copyright treaty
167adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention
168of such measures.
169
170When you convey a covered work, you waive any legal power to forbid circumvention of
171technological measures to the extent such circumvention is effected by exercising
172rights under this License with respect to the covered work, and you disclaim any
173intention to limit operation or modification of the work as a means of enforcing,
174against the work's users, your or third parties' legal rights to forbid circumvention
175of technological measures.
176
177### 4. Conveying Verbatim Copies
178
179You may convey verbatim copies of the Program's source code as you receive it, in any
180medium, provided that you conspicuously and appropriately publish on each copy an
181appropriate copyright notice; keep intact all notices stating that this License and
182any non-permissive terms added in accord with section 7 apply to the code; keep
183intact all notices of the absence of any warranty; and give all recipients a copy of
184this License along with the Program.
185
186You may charge any price or no price for each copy that you convey, and you may offer
187support or warranty protection for a fee.
188
189### 5. Conveying Modified Source Versions
190
191You may convey a work based on the Program, or the modifications to produce it from
192the Program, in the form of source code under the terms of section 4, provided that
193you also meet all of these conditions:
194
195- **a)** The work must carry prominent notices stating that you modified it, and giving a
196 relevant date.
197- **b)** The work must carry prominent notices stating that it is released under this
198 License and any conditions added under section 7. This requirement modifies the
199 requirement in section 4 to “keep intact all notices”.
200- **c)** You must license the entire work, as a whole, under this License to anyone who
201 comes into possession of a copy. This License will therefore apply, along with any
202 applicable section 7 additional terms, to the whole of the work, and all its parts,
203 regardless of how they are packaged. This License gives no permission to license the
204 work in any other way, but it does not invalidate such permission if you have
205 separately received it.
206- **d)** If the work has interactive user interfaces, each must display Appropriate Legal
207 Notices; however, if the Program has interactive interfaces that do not display
208 Appropriate Legal Notices, your work need not make them do so.
209
210A compilation of a covered work with other separate and independent works, which are
211not by their nature extensions of the covered work, and which are not combined with
212it such as to form a larger program, in or on a volume of a storage or distribution
213medium, is called an “aggregate” if the compilation and its resulting
214copyright are not used to limit the access or legal rights of the compilation's users
215beyond what the individual works permit. Inclusion of a covered work in an aggregate
216does not cause this License to apply to the other parts of the aggregate.
217
218### 6. Conveying Non-Source Forms
219
220You may convey a covered work in object code form under the terms of sections 4 and
2215, provided that you also convey the machine-readable Corresponding Source under the
222terms of this License, in one of these ways:
223
224- **a)** Convey the object code in, or embodied in, a physical product (including a
225 physical distribution medium), accompanied by the Corresponding Source fixed on a
226 durable physical medium customarily used for software interchange.
227- **b)** Convey the object code in, or embodied in, a physical product (including a
228 physical distribution medium), accompanied by a written offer, valid for at least
229 three years and valid for as long as you offer spare parts or customer support for
230 that product model, to give anyone who possesses the object code either **(1)** a copy of
231 the Corresponding Source for all the software in the product that is covered by this
232 License, on a durable physical medium customarily used for software interchange, for
233 a price no more than your reasonable cost of physically performing this conveying of
234 source, or **(2)** access to copy the Corresponding Source from a network server at no
235 charge.
236- **c)** Convey individual copies of the object code with a copy of the written offer to
237 provide the Corresponding Source. This alternative is allowed only occasionally and
238 noncommercially, and only if you received the object code with such an offer, in
239 accord with subsection 6b.
240- **d)** Convey the object code by offering access from a designated place (gratis or for
241 a charge), and offer equivalent access to the Corresponding Source in the same way
242 through the same place at no further charge. You need not require recipients to copy
243 the Corresponding Source along with the object code. If the place to copy the object
244 code is a network server, the Corresponding Source may be on a different server
245 (operated by you or a third party) that supports equivalent copying facilities,
246 provided you maintain clear directions next to the object code saying where to find
247 the Corresponding Source. Regardless of what server hosts the Corresponding Source,
248 you remain obligated to ensure that it is available for as long as needed to satisfy
249 these requirements.
250- **e)** Convey the object code using peer-to-peer transmission, provided you inform
251 other peers where the object code and Corresponding Source of the work are being
252 offered to the general public at no charge under subsection 6d.
253
254A separable portion of the object code, whose source code is excluded from the
255Corresponding Source as a System Library, need not be included in conveying the
256object code work.
257
258A “User Product” is either **(1)** a “consumer product”, which
259means any tangible personal property which is normally used for personal, family, or
260household purposes, or **(2)** anything designed or sold for incorporation into a
261dwelling. In determining whether a product is a consumer product, doubtful cases
262shall be resolved in favor of coverage. For a particular product received by a
263particular user, “normally used” refers to a typical or common use of
264that class of product, regardless of the status of the particular user or of the way
265in which the particular user actually uses, or expects or is expected to use, the
266product. A product is a consumer product regardless of whether the product has
267substantial commercial, industrial or non-consumer uses, unless such uses represent
268the only significant mode of use of the product.
269
270“Installation Information” for a User Product means any methods,
271procedures, authorization keys, or other information required to install and execute
272modified versions of a covered work in that User Product from a modified version of
273its Corresponding Source. The information must suffice to ensure that the continued
274functioning of the modified object code is in no case prevented or interfered with
275solely because modification has been made.
276
277If you convey an object code work under this section in, or with, or specifically for
278use in, a User Product, and the conveying occurs as part of a transaction in which
279the right of possession and use of the User Product is transferred to the recipient
280in perpetuity or for a fixed term (regardless of how the transaction is
281characterized), the Corresponding Source conveyed under this section must be
282accompanied by the Installation Information. But this requirement does not apply if
283neither you nor any third party retains the ability to install modified object code
284on the User Product (for example, the work has been installed in ROM).
285
286The requirement to provide Installation Information does not include a requirement to
287continue to provide support service, warranty, or updates for a work that has been
288modified or installed by the recipient, or for the User Product in which it has been
289modified or installed. Access to a network may be denied when the modification itself
290materially and adversely affects the operation of the network or violates the rules
291and protocols for communication across the network.
292
293Corresponding Source conveyed, and Installation Information provided, in accord with
294this section must be in a format that is publicly documented (and with an
295implementation available to the public in source code form), and must require no
296special password or key for unpacking, reading or copying.
297
298### 7. Additional Terms
299
300“Additional permissions” are terms that supplement the terms of this
301License by making exceptions from one or more of its conditions. Additional
302permissions that are applicable to the entire Program shall be treated as though they
303were included in this License, to the extent that they are valid under applicable
304law. If additional permissions apply only to part of the Program, that part may be
305used separately under those permissions, but the entire Program remains governed by
306this License without regard to the additional permissions.
307
308When you convey a copy of a covered work, you may at your option remove any
309additional permissions from that copy, or from any part of it. (Additional
310permissions may be written to require their own removal in certain cases when you
311modify the work.) You may place additional permissions on material, added by you to a
312covered work, for which you have or can give appropriate copyright permission.
313
314Notwithstanding any other provision of this License, for material you add to a
315covered work, you may (if authorized by the copyright holders of that material)
316supplement the terms of this License with terms:
317
318- **a)** Disclaiming warranty or limiting liability differently from the terms of
319 sections 15 and 16 of this License; or
320- **b)** Requiring preservation of specified reasonable legal notices or author
321 attributions in that material or in the Appropriate Legal Notices displayed by works
322 containing it; or
323- **c)** Prohibiting misrepresentation of the origin of that material, or requiring that
324 modified versions of such material be marked in reasonable ways as different from the
325 original version; or
326- **d)** Limiting the use for publicity purposes of names of licensors or authors of the
327 material; or
328- **e)** Declining to grant rights under trademark law for use of some trade names,
329 trademarks, or service marks; or
330- **f)** Requiring indemnification of licensors and authors of that material by anyone
331 who conveys the material (or modified versions of it) with contractual assumptions of
332 liability to the recipient, for any liability that these contractual assumptions
333 directly impose on those licensors and authors.
334
335All other non-permissive additional terms are considered “further
336restrictions” within the meaning of section 10. If the Program as you received
337it, or any part of it, contains a notice stating that it is governed by this License
338along with a term that is a further restriction, you may remove that term. If a
339license document contains a further restriction but permits relicensing or conveying
340under this License, you may add to a covered work material governed by the terms of
341that license document, provided that the further restriction does not survive such
342relicensing or conveying.
343
344If you add terms to a covered work in accord with this section, you must place, in
345the relevant source files, a statement of the additional terms that apply to those
346files, or a notice indicating where to find the applicable terms.
347
348Additional terms, permissive or non-permissive, may be stated in the form of a
349separately written license, or stated as exceptions; the above requirements apply
350either way.
351
352### 8. Termination
353
354You may not propagate or modify a covered work except as expressly provided under
355this License. Any attempt otherwise to propagate or modify it is void, and will
356automatically terminate your rights under this License (including any patent licenses
357granted under the third paragraph of section 11).
358
359However, if you cease all violation of this License, then your license from a
360particular copyright holder is reinstated **(a)** provisionally, unless and until the
361copyright holder explicitly and finally terminates your license, and **(b)** permanently,
362if the copyright holder fails to notify you of the violation by some reasonable means
363prior to 60 days after the cessation.
364
365Moreover, your license from a particular copyright holder is reinstated permanently
366if the copyright holder notifies you of the violation by some reasonable means, this
367is the first time you have received notice of violation of this License (for any
368work) from that copyright holder, and you cure the violation prior to 30 days after
369your receipt of the notice.
370
371Termination of your rights under this section does not terminate the licenses of
372parties who have received copies or rights from you under this License. If your
373rights have been terminated and not permanently reinstated, you do not qualify to
374receive new licenses for the same material under section 10.
375
376### 9. Acceptance Not Required for Having Copies
377
378You are not required to accept this License in order to receive or run a copy of the
379Program. Ancillary propagation of a covered work occurring solely as a consequence of
380using peer-to-peer transmission to receive a copy likewise does not require
381acceptance. However, nothing other than this License grants you permission to
382propagate or modify any covered work. These actions infringe copyright if you do not
383accept this License. Therefore, by modifying or propagating a covered work, you
384indicate your acceptance of this License to do so.
385
386### 10. Automatic Licensing of Downstream Recipients
387
388Each time you convey a covered work, the recipient automatically receives a license
389from the original licensors, to run, modify and propagate that work, subject to this
390License. You are not responsible for enforcing compliance by third parties with this
391License.
392
393An “entity transaction” is a transaction transferring control of an
394organization, or substantially all assets of one, or subdividing an organization, or
395merging organizations. If propagation of a covered work results from an entity
396transaction, each party to that transaction who receives a copy of the work also
397receives whatever licenses to the work the party's predecessor in interest had or
398could give under the previous paragraph, plus a right to possession of the
399Corresponding Source of the work from the predecessor in interest, if the predecessor
400has it or can get it with reasonable efforts.
401
402You may not impose any further restrictions on the exercise of the rights granted or
403affirmed under this License. For example, you may not impose a license fee, royalty,
404or other charge for exercise of rights granted under this License, and you may not
405initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging
406that any patent claim is infringed by making, using, selling, offering for sale, or
407importing the Program or any portion of it.
408
409### 11. Patents
410
411A “contributor” is a copyright holder who authorizes use under this
412License of the Program or a work on which the Program is based. The work thus
413licensed is called the contributor's “contributor version”.
414
415A contributor's “essential patent claims” are all patent claims owned or
416controlled by the contributor, whether already acquired or hereafter acquired, that
417would be infringed by some manner, permitted by this License, of making, using, or
418selling its contributor version, but do not include claims that would be infringed
419only as a consequence of further modification of the contributor version. For
420purposes of this definition, “control” includes the right to grant patent
421sublicenses in a manner consistent with the requirements of this License.
422
423Each contributor grants you a non-exclusive, worldwide, royalty-free patent license
424under the contributor's essential patent claims, to make, use, sell, offer for sale,
425import and otherwise run, modify and propagate the contents of its contributor
426version.
427
428In the following three paragraphs, a “patent license” is any express
429agreement or commitment, however denominated, not to enforce a patent (such as an
430express permission to practice a patent or covenant not to sue for patent
431infringement). To “grant” such a patent license to a party means to make
432such an agreement or commitment not to enforce a patent against the party.
433
434If you convey a covered work, knowingly relying on a patent license, and the
435Corresponding Source of the work is not available for anyone to copy, free of charge
436and under the terms of this License, through a publicly available network server or
437other readily accessible means, then you must either **(1)** cause the Corresponding
438Source to be so available, or **(2)** arrange to deprive yourself of the benefit of the
439patent license for this particular work, or **(3)** arrange, in a manner consistent with
440the requirements of this License, to extend the patent license to downstream
441recipients. “Knowingly relying” means you have actual knowledge that, but
442for the patent license, your conveying the covered work in a country, or your
443recipient's use of the covered work in a country, would infringe one or more
444identifiable patents in that country that you have reason to believe are valid.
445
446If, pursuant to or in connection with a single transaction or arrangement, you
447convey, or propagate by procuring conveyance of, a covered work, and grant a patent
448license to some of the parties receiving the covered work authorizing them to use,
449propagate, modify or convey a specific copy of the covered work, then the patent
450license you grant is automatically extended to all recipients of the covered work and
451works based on it.
452
453A patent license is “discriminatory” if it does not include within the
454scope of its coverage, prohibits the exercise of, or is conditioned on the
455non-exercise of one or more of the rights that are specifically granted under this
456License. You may not convey a covered work if you are a party to an arrangement with
457a third party that is in the business of distributing software, under which you make
458payment to the third party based on the extent of your activity of conveying the
459work, and under which the third party grants, to any of the parties who would receive
460the covered work from you, a discriminatory patent license **(a)** in connection with
461copies of the covered work conveyed by you (or copies made from those copies), or **(b)**
462primarily for and in connection with specific products or compilations that contain
463the covered work, unless you entered into that arrangement, or that patent license
464was granted, prior to 28 March 2007.
465
466Nothing in this License shall be construed as excluding or limiting any implied
467license or other defenses to infringement that may otherwise be available to you
468under applicable patent law.
469
470### 12. No Surrender of Others' Freedom
471
472If conditions are imposed on you (whether by court order, agreement or otherwise)
473that contradict the conditions of this License, they do not excuse you from the
474conditions of this License. If you cannot convey a covered work so as to satisfy
475simultaneously your obligations under this License and any other pertinent
476obligations, then as a consequence you may not convey it at all. For example, if you
477agree to terms that obligate you to collect a royalty for further conveying from
478those to whom you convey the Program, the only way you could satisfy both those terms
479and this License would be to refrain entirely from conveying the Program.
480
481### 13. Use with the GNU Affero General Public License
482
483Notwithstanding any other provision of this License, you have permission to link or
484combine any covered work with a work licensed under version 3 of the GNU Affero
485General Public License into a single combined work, and to convey the resulting work.
486The terms of this License will continue to apply to the part which is the covered
487work, but the special requirements of the GNU Affero General Public License, section
48813, concerning interaction through a network will apply to the combination as such.
489
490### 14. Revised Versions of this License
491
492The Free Software Foundation may publish revised and/or new versions of the GNU
493General Public License from time to time. Such new versions will be similar in spirit
494to the present version, but may differ in detail to address new problems or concerns.
495
496Each version is given a distinguishing version number. If the Program specifies that
497a certain numbered version of the GNU General Public License “or any later
498version” applies to it, you have the option of following the terms and
499conditions either of that numbered version or of any later version published by the
500Free Software Foundation. If the Program does not specify a version number of the GNU
501General Public License, you may choose any version ever published by the Free
502Software Foundation.
503
504If the Program specifies that a proxy can decide which future versions of the GNU
505General Public License can be used, that proxy's public statement of acceptance of a
506version permanently authorizes you to choose that version for the Program.
507
508Later license versions may give you additional or different permissions. However, no
509additional obligations are imposed on any author or copyright holder as a result of
510your choosing to follow a later version.
511
512### 15. Disclaimer of Warranty
513
514THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
515EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
516PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
517EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
518MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE
519QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
520DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
521
522### 16. Limitation of Liability
523
524IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
525COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS
526PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
527INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
528PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE
529OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE
530WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
531POSSIBILITY OF SUCH DAMAGES.
532
533### 17. Interpretation of Sections 15 and 16
534
535If the disclaimer of warranty and limitation of liability provided above cannot be
536given local legal effect according to their terms, reviewing courts shall apply local
537law that most closely approximates an absolute waiver of all civil liability in
538connection with the Program, unless a warranty or assumption of liability accompanies
539a copy of the Program in return for a fee.
540
541_END OF TERMS AND CONDITIONS_
542
543## How to Apply These Terms to Your New Programs
544
545If you develop a new program, and you want it to be of the greatest possible use to
546the public, the best way to achieve this is to make it free software which everyone
547can redistribute and change under these terms.
548
549To do so, attach the following notices to the program. It is safest to attach them
550to the start of each source file to most effectively state the exclusion of warranty;
551and each file should have at least the “copyright” line and a pointer to
552where the full notice is found.
553
554```
555<one line to give the program's name and a brief idea of what it does.>
556Copyright (C) <year> <name of author>
557
558This program is free software: you can redistribute it and/or modify
559it under the terms of the GNU General Public License as published by
560the Free Software Foundation, either version 3 of the License, or
561(at your option) any later version.
562
563This program is distributed in the hope that it will be useful,
564but WITHOUT ANY WARRANTY; without even the implied warranty of
565MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
566GNU General Public License for more details.
567
568You should have received a copy of the GNU General Public License
569along with this program. If not, see <http://www.gnu.org/licenses/>.
570```
571
572Also add information on how to contact you by electronic and paper mail.
573
574If the program does terminal interaction, make it output a short notice like this
575when it starts in an interactive mode:
576
577```
578<program> Copyright (C) <year> <name of author>
579This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
580This is free software, and you are welcome to redistribute it
581under certain conditions; type 'show c' for details.
582```
583
584The hypothetical commands `show w` and `show c` should show the appropriate parts of
585the General Public License. Of course, your program's commands might be different;
586for a GUI interface, you would use an “about box”.
587
588You should also get your employer (if you work as a programmer) or school, if any, to
589sign a “copyright disclaimer” for the program, if necessary. For more
590information on this, and how to apply and follow the GNU GPL, see
591\<<http://www.gnu.org/licenses/>>.
592
593The GNU General Public License does not permit incorporating your program into
594proprietary programs. If your program is a subroutine library, you may consider it
595more useful to permit linking proprietary applications with the library. If this is
596what you want to do, use the GNU Lesser General Public License instead of this
597License. But first, please read
598\<<http://www.gnu.org/philosophy/why-not-lgpl.html>>.