1
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
4
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
5
<title>GNU General Public License - GNU Project - Free Software Foundation (FSF)</title>
6
<link rel="alternate" type="application/rdf+xml"
7
href="http://www.gnu.org/licenses/gpl-3.0.rdf" />
10
<h3 style="text-align: center;">GNU GENERAL PUBLIC LICENSE</h3>
11
<p style="text-align: center;">Version 3, 29 June 2007</p>
13
<p>Copyright © 2007 Free Software Foundation, Inc.
14
<<a href="http://fsf.org/">http://fsf.org/</a>></p><p>
15
Everyone is permitted to copy and distribute verbatim copies
16
of this license document, but changing it is not allowed.</p>
18
<h3><a name="preamble"></a>Preamble</h3>
20
<p>The GNU General Public License is a free, copyleft license for
21
software and other kinds of works.</p>
23
<p>The licenses for most software and other practical works are designed
24
to take away your freedom to share and change the works. By contrast,
25
the GNU General Public License is intended to guarantee your freedom to
26
share and change all versions of a program--to make sure it remains free
27
software for all its users. We, the Free Software Foundation, use the
28
GNU General Public License for most of our software; it applies also to
29
any other work released this way by its authors. You can apply it to
30
your programs, too.</p>
32
<p>When we speak of free software, we are referring to freedom, not
33
price. Our General Public Licenses are designed to make sure that you
34
have the freedom to distribute copies of free software (and charge for
35
them if you wish), that you receive source code or can get it if you
36
want it, that you can change the software or use pieces of it in new
37
free programs, and that you know you can do these things.</p>
39
<p>To protect your rights, we need to prevent others from denying you
40
these rights or asking you to surrender the rights. Therefore, you have
41
certain responsibilities if you distribute copies of the software, or if
42
you modify it: responsibilities to respect the freedom of others.</p>
44
<p>For example, if you distribute copies of such a program, whether
45
gratis or for a fee, you must pass on to the recipients the same
46
freedoms that you received. You must make sure that they, too, receive
47
or can get the source code. And you must show them these terms so they
48
know their rights.</p>
50
<p>Developers that use the GNU GPL protect your rights with two steps:
51
(1) assert copyright on the software, and (2) offer you this License
52
giving you legal permission to copy, distribute and/or modify it.</p>
54
<p>For the developers' and authors' protection, the GPL clearly explains
55
that there is no warranty for this free software. For both users' and
56
authors' sake, the GPL requires that modified versions be marked as
57
changed, so that their problems will not be attributed erroneously to
58
authors of previous versions.</p>
60
<p>Some devices are designed to deny users access to install or run
61
modified versions of the software inside them, although the manufacturer
62
can do so. This is fundamentally incompatible with the aim of
63
protecting users' freedom to change the software. The systematic
64
pattern of such abuse occurs in the area of products for individuals to
65
use, which is precisely where it is most unacceptable. Therefore, we
66
have designed this version of the GPL to prohibit the practice for those
67
products. If such problems arise substantially in other domains, we
68
stand ready to extend this provision to those domains in future versions
69
of the GPL, as needed to protect the freedom of users.</p>
71
<p>Finally, every program is threatened constantly by software patents.
72
States should not allow patents to restrict development and use of
73
software on general-purpose computers, but in those that do, we wish to
74
avoid the special danger that patents applied to a free program could
75
make it effectively proprietary. To prevent this, the GPL assures that
76
patents cannot be used to render the program non-free.</p>
78
<p>The precise terms and conditions for copying, distribution and
79
modification follow.</p>
81
<h3><a name="terms"></a>TERMS AND CONDITIONS</h3>
83
<h4><a name="section0"></a>0. Definitions.</h4>
85
<p>“This License” refers to version 3 of the GNU General Public License.</p>
87
<p>“Copyright” also means copyright-like laws that apply to other kinds of
88
works, such as semiconductor masks.</p>
90
<p>“The Program” refers to any copyrightable work licensed under this
91
License. Each licensee is addressed as “you”. “Licensees” and
92
“recipients” may be individuals or organizations.</p>
94
<p>To “modify” a work means to copy from or adapt all or part of the work
95
in a fashion requiring copyright permission, other than the making of an
96
exact copy. The resulting work is called a “modified version” of the
97
earlier work or a work “based on” the earlier work.</p>
99
<p>A “covered work” means either the unmodified Program or a work based
102
<p>To “propagate” a work means to do anything with it that, without
103
permission, would make you directly or secondarily liable for
104
infringement under applicable copyright law, except executing it on a
105
computer or modifying a private copy. Propagation includes copying,
106
distribution (with or without modification), making available to the
107
public, and in some countries other activities as well.</p>
109
<p>To “convey” a work means any kind of propagation that enables other
110
parties to make or receive copies. Mere interaction with a user through
111
a computer network, with no transfer of a copy, is not conveying.</p>
113
<p>An interactive user interface displays “Appropriate Legal Notices”
114
to the extent that it includes a convenient and prominently visible
115
feature that (1) displays an appropriate copyright notice, and (2)
116
tells the user that there is no warranty for the work (except to the
117
extent that warranties are provided), that licensees may convey the
118
work under this License, and how to view a copy of this License. If
119
the interface presents a list of user commands or options, such as a
120
menu, a prominent item in the list meets this criterion.</p>
122
<h4><a name="section1"></a>1. Source Code.</h4>
124
<p>The “source code” for a work means the preferred form of the work
125
for making modifications to it. “Object code” means any non-source
128
<p>A “Standard Interface” means an interface that either is an official
129
standard defined by a recognized standards body, or, in the case of
130
interfaces specified for a particular programming language, one that
131
is widely used among developers working in that language.</p>
133
<p>The “System Libraries” of an executable work include anything, other
134
than the work as a whole, that (a) is included in the normal form of
135
packaging a Major Component, but which is not part of that Major
136
Component, and (b) serves only to enable use of the work with that
137
Major Component, or to implement a Standard Interface for which an
138
implementation 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
142
produce the work, or an object code interpreter used to run it.</p>
144
<p>The “Corresponding Source” for a work in object code form means all
145
the source code needed to generate, install, and (for an executable
146
work) run the object code and to modify the work, including scripts to
147
control those activities. However, it does not include the work's
148
System Libraries, or general-purpose tools or generally available free
149
programs which are used unmodified in performing those activities but
150
which are not part of the work. For example, Corresponding Source
151
includes interface definition files associated with source files for
152
the work, and the source code for shared libraries and dynamically
153
linked subprograms that the work is specifically designed to require,
154
such as by intimate data communication or control flow between those
155
subprograms and other parts of the work.</p>
157
<p>The Corresponding Source need not include anything that users
158
can regenerate automatically from other parts of the Corresponding
161
<p>The Corresponding Source for a work in source code form is that
164
<h4><a name="section2"></a>2. Basic Permissions.</h4>
166
<p>All rights granted under this License are granted for the term of
167
copyright on the Program, and are irrevocable provided the stated
168
conditions are met. This License explicitly affirms your unlimited
169
permission to run the unmodified Program. The output from running a
170
covered work is covered by this License only if the output, given its
171
content, constitutes a covered work. This License acknowledges your
172
rights of fair use or other equivalent, as provided by copyright law.</p>
174
<p>You may make, run and propagate covered works that you do not
175
convey, without conditions so long as your license otherwise remains
176
in force. You may convey covered works to others for the sole purpose
177
of having them make modifications exclusively for you, or provide you
178
with facilities for running those works, provided that you comply with
179
the terms of this License in conveying all material for which you do
180
not control copyright. Those thus making or running the covered works
181
for you must do so exclusively on your behalf, under your direction
182
and control, on terms that prohibit them from making any copies of
183
your copyrighted material outside their relationship with you.</p>
185
<p>Conveying under any other circumstances is permitted solely under
186
the conditions stated below. Sublicensing is not allowed; section 10
187
makes it unnecessary.</p>
189
<h4><a name="section3"></a>3. Protecting Users' Legal Rights From Anti-Circumvention Law.</h4>
191
<p>No covered work shall be deemed part of an effective technological
192
measure under any applicable law fulfilling obligations under article
193
11 of the WIPO copyright treaty adopted on 20 December 1996, or
194
similar laws prohibiting or restricting circumvention of such
197
<p>When you convey a covered work, you waive any legal power to forbid
198
circumvention of technological measures to the extent such circumvention
199
is effected by exercising rights under this License with respect to
200
the covered work, and you disclaim any intention to limit operation or
201
modification of the work as a means of enforcing, against the work's
202
users, your or third parties' legal rights to forbid circumvention of
203
technological measures.</p>
205
<h4><a name="section4"></a>4. Conveying Verbatim Copies.</h4>
207
<p>You may convey verbatim copies of the Program's source code as you
208
receive it, in any medium, provided that you conspicuously and
209
appropriately publish on each copy an appropriate copyright notice;
210
keep intact all notices stating that this License and any
211
non-permissive terms added in accord with section 7 apply to the code;
212
keep intact all notices of the absence of any warranty; and give all
213
recipients a copy of this License along with the Program.</p>
215
<p>You may charge any price or no price for each copy that you convey,
216
and you may offer support or warranty protection for a fee.</p>
218
<h4><a name="section5"></a>5. Conveying Modified Source Versions.</h4>
220
<p>You may convey a work based on the Program, or the modifications to
221
produce it from the Program, in the form of source code under the
222
terms of section 4, provided that you also meet all of these conditions:</p>
225
<li>a) The work must carry prominent notices stating that you modified
226
it, and giving a relevant date.</li>
228
<li>b) The work must carry prominent notices stating that it is
229
released under this License and any conditions added under section
230
7. This requirement modifies the requirement in section 4 to
231
“keep intact all notices”.</li>
233
<li>c) You must license the entire work, as a whole, under this
234
License to anyone who comes into possession of a copy. This
235
License will therefore apply, along with any applicable section 7
236
additional terms, to the whole of the work, and all its parts,
237
regardless of how they are packaged. This License gives no
238
permission to license the work in any other way, but it does not
239
invalidate such permission if you have separately received it.</li>
241
<li>d) If the work has interactive user interfaces, each must display
242
Appropriate Legal Notices; however, if the Program has interactive
243
interfaces that do not display Appropriate Legal Notices, your
244
work need not make them do so.</li>
247
<p>A compilation of a covered work with other separate and independent
248
works, which are not by their nature extensions of the covered work,
249
and which are not combined with it such as to form a larger program,
250
in or on a volume of a storage or distribution medium, is called an
251
“aggregate” if the compilation and its resulting copyright are not
252
used to limit the access or legal rights of the compilation's users
253
beyond what the individual works permit. Inclusion of a covered work
254
in an aggregate does not cause this License to apply to the other
255
parts of the aggregate.</p>
257
<h4><a name="section6"></a>6. Conveying Non-Source Forms.</h4>
259
<p>You may convey a covered work in object code form under the terms
260
of sections 4 and 5, provided that you also convey the
261
machine-readable Corresponding Source under the terms of this License,
262
in one of these ways:</p>
265
<li>a) Convey the object code in, or embodied in, a physical product
266
(including a physical distribution medium), accompanied by the
267
Corresponding Source fixed on a durable physical medium
268
customarily used for software interchange.</li>
270
<li>b) Convey the object code in, or embodied in, a physical product
271
(including a physical distribution medium), accompanied by a
272
written offer, valid for at least three years and valid for as
273
long as you offer spare parts or customer support for that product
274
model, to give anyone who possesses the object code either (1) a
275
copy of the Corresponding Source for all the software in the
276
product that is covered by this License, on a durable physical
277
medium customarily used for software interchange, for a price no
278
more than your reasonable cost of physically performing this
279
conveying of source, or (2) access to copy the
280
Corresponding Source from a network server at no charge.</li>
282
<li>c) Convey individual copies of the object code with a copy of the
283
written offer to provide the Corresponding Source. This
284
alternative is allowed only occasionally and noncommercially, and
285
only if you received the object code with such an offer, in accord
286
with subsection 6b.</li>
288
<li>d) Convey the object code by offering access from a designated
289
place (gratis or for a charge), and offer equivalent access to the
290
Corresponding Source in the same way through the same place at no
291
further charge. You need not require recipients to copy the
292
Corresponding Source along with the object code. If the place to
293
copy the object code is a network server, the Corresponding Source
294
may be on a different server (operated by you or a third party)
295
that supports equivalent copying facilities, provided you maintain
296
clear directions next to the object code saying where to find the
297
Corresponding Source. Regardless of what server hosts the
298
Corresponding Source, you remain obligated to ensure that it is
299
available for as long as needed to satisfy these requirements.</li>
301
<li>e) Convey the object code using peer-to-peer transmission, provided
302
you inform other peers where the object code and Corresponding
303
Source of the work are being offered to the general public at no
304
charge under subsection 6d.</li>
307
<p>A separable portion of the object code, whose source code is excluded
308
from the Corresponding Source as a System Library, need not be
309
included in conveying the object code work.</p>
311
<p>A “User Product” is either (1) a “consumer product”, which means any
312
tangible personal property which is normally used for personal, family,
313
or household purposes, or (2) anything designed or sold for incorporation
314
into a dwelling. In determining whether a product is a consumer product,
315
doubtful cases shall be resolved in favor of coverage. For a particular
316
product received by a particular user, “normally used” refers to a
317
typical or common use of that class of product, regardless of the status
318
of the particular user or of the way in which the particular user
319
actually uses, or expects or is expected to use, the product. A product
320
is a consumer product regardless of whether the product has substantial
321
commercial, industrial or non-consumer uses, unless such uses represent
322
the only significant mode of use of the product.</p>
324
<p>“Installation Information” for a User Product means any methods,
325
procedures, authorization keys, or other information required to install
326
and execute modified versions of a covered work in that User Product from
327
a modified version of its Corresponding Source. The information must
328
suffice to ensure that the continued functioning of the modified object
329
code is in no case prevented or interfered with solely because
330
modification has been made.</p>
332
<p>If you convey an object code work under this section in, or with, or
333
specifically for use in, a User Product, and the conveying occurs as
334
part of a transaction in which the right of possession and use of the
335
User Product is transferred to the recipient in perpetuity or for a
336
fixed term (regardless of how the transaction is characterized), the
337
Corresponding Source conveyed under this section must be accompanied
338
by the Installation Information. But this requirement does not apply
339
if neither you nor any third party retains the ability to install
340
modified object code on the User Product (for example, the work has
341
been installed in ROM).</p>
343
<p>The requirement to provide Installation Information does not include a
344
requirement to continue to provide support service, warranty, or updates
345
for a work that has been modified or installed by the recipient, or for
346
the User Product in which it has been modified or installed. Access to a
347
network may be denied when the modification itself materially and
348
adversely affects the operation of the network or violates the rules and
349
protocols for communication across the network.</p>
351
<p>Corresponding Source conveyed, and Installation Information provided,
352
in accord with this section must be in a format that is publicly
353
documented (and with an implementation available to the public in
354
source code form), and must require no special password or key for
355
unpacking, reading or copying.</p>
357
<h4><a name="section7"></a>7. Additional Terms.</h4>
359
<p>“Additional permissions” are terms that supplement the terms of this
360
License by making exceptions from one or more of its conditions.
361
Additional permissions that are applicable to the entire Program shall
362
be treated as though they were included in this License, to the extent
363
that they are valid under applicable law. If additional permissions
364
apply only to part of the Program, that part may be used separately
365
under those permissions, but the entire Program remains governed by
366
this License without regard to the additional permissions.</p>
368
<p>When you convey a copy of a covered work, you may at your option
369
remove any additional permissions from that copy, or from any part of
370
it. (Additional permissions may be written to require their own
371
removal in certain cases when you modify the work.) You may place
372
additional permissions on material, added by you to a covered work,
373
for which you have or can give appropriate copyright permission.</p>
375
<p>Notwithstanding any other provision of this License, for material you
376
add to a covered work, you may (if authorized by the copyright holders of
377
that material) supplement the terms of this License with terms:</p>
380
<li>a) Disclaiming warranty or limiting liability differently from the
381
terms of sections 15 and 16 of this License; or</li>
383
<li>b) Requiring preservation of specified reasonable legal notices or
384
author attributions in that material or in the Appropriate Legal
385
Notices displayed by works containing it; or</li>
387
<li>c) Prohibiting misrepresentation of the origin of that material, or
388
requiring that modified versions of such material be marked in
389
reasonable ways as different from the original version; or</li>
391
<li>d) Limiting the use for publicity purposes of names of licensors or
392
authors of the material; or</li>
394
<li>e) Declining to grant rights under trademark law for use of some
395
trade names, trademarks, or service marks; or</li>
397
<li>f) Requiring indemnification of licensors and authors of that
398
material by anyone who conveys the material (or modified versions of
399
it) with contractual assumptions of liability to the recipient, for
400
any liability that these contractual assumptions directly impose on
401
those licensors and authors.</li>
404
<p>All other non-permissive additional terms are considered “further
405
restrictions” within the meaning of section 10. If the Program as you
406
received it, or any part of it, contains a notice stating that it is
407
governed by this License along with a term that is a further
408
restriction, you may remove that term. If a license document contains
409
a further restriction but permits relicensing or conveying under this
410
License, you may add to a covered work material governed by the terms
411
of that license document, provided that the further restriction does
412
not survive such relicensing or conveying.</p>
414
<p>If you add terms to a covered work in accord with this section, you
415
must place, in the relevant source files, a statement of the
416
additional terms that apply to those files, or a notice indicating
417
where to find the applicable terms.</p>
419
<p>Additional terms, permissive or non-permissive, may be stated in the
420
form of a separately written license, or stated as exceptions;
421
the above requirements apply either way.</p>
423
<h4><a name="section8"></a>8. Termination.</h4>
425
<p>You may not propagate or modify a covered work except as expressly
426
provided under this License. Any attempt otherwise to propagate or
427
modify it is void, and will automatically terminate your rights under
428
this License (including any patent licenses granted under the third
429
paragraph of section 11).</p>
431
<p>However, if you cease all violation of this License, then your
432
license from a particular copyright holder is reinstated (a)
433
provisionally, unless and until the copyright holder explicitly and
434
finally terminates your license, and (b) permanently, if the copyright
435
holder fails to notify you of the violation by some reasonable means
436
prior to 60 days after the cessation.</p>
438
<p>Moreover, your license from a particular copyright holder is
439
reinstated permanently if the copyright holder notifies you of the
440
violation by some reasonable means, this is the first time you have
441
received notice of violation of this License (for any work) from that
442
copyright holder, and you cure the violation prior to 30 days after
443
your receipt of the notice.</p>
445
<p>Termination of your rights under this section does not terminate the
446
licenses of parties who have received copies or rights from you under
447
this License. If your rights have been terminated and not permanently
448
reinstated, you do not qualify to receive new licenses for the same
449
material under section 10.</p>
451
<h4><a name="section9"></a>9. Acceptance Not Required for Having Copies.</h4>
453
<p>You are not required to accept this License in order to receive or
454
run a copy of the Program. Ancillary propagation of a covered work
455
occurring solely as a consequence of using peer-to-peer transmission
456
to receive a copy likewise does not require acceptance. However,
457
nothing other than this License grants you permission to propagate or
458
modify any covered work. These actions infringe copyright if you do
459
not accept this License. Therefore, by modifying or propagating a
460
covered work, you indicate your acceptance of this License to do so.</p>
462
<h4><a name="section10"></a>10. Automatic Licensing of Downstream Recipients.</h4>
464
<p>Each time you convey a covered work, the recipient automatically
465
receives a license from the original licensors, to run, modify and
466
propagate that work, subject to this License. You are not responsible
467
for enforcing compliance by third parties with this License.</p>
469
<p>An “entity transaction” is a transaction transferring control of an
470
organization, or substantially all assets of one, or subdividing an
471
organization, or merging organizations. If propagation of a covered
472
work results from an entity transaction, each party to that
473
transaction who receives a copy of the work also receives whatever
474
licenses to the work the party's predecessor in interest had or could
475
give under the previous paragraph, plus a right to possession of the
476
Corresponding Source of the work from the predecessor in interest, if
477
the predecessor has it or can get it with reasonable efforts.</p>
479
<p>You may not impose any further restrictions on the exercise of the
480
rights granted or affirmed under this License. For example, you may
481
not impose a license fee, royalty, or other charge for exercise of
482
rights granted under this License, and you may not initiate litigation
483
(including a cross-claim or counterclaim in a lawsuit) alleging that
484
any patent claim is infringed by making, using, selling, offering for
485
sale, or importing the Program or any portion of it.</p>
487
<h4><a name="section11"></a>11. Patents.</h4>
489
<p>A “contributor” is a copyright holder who authorizes use under this
490
License of the Program or a work on which the Program is based. The
491
work thus licensed is called the contributor's “contributor version”.</p>
493
<p>A contributor's “essential patent claims” are all patent claims
494
owned or controlled by the contributor, whether already acquired or
495
hereafter acquired, that would be infringed by some manner, permitted
496
by this License, of making, using, or selling its contributor version,
497
but do not include claims that would be infringed only as a
498
consequence of further modification of the contributor version. For
499
purposes of this definition, “control” includes the right to grant
500
patent sublicenses in a manner consistent with the requirements of
503
<p>Each contributor grants you a non-exclusive, worldwide, royalty-free
504
patent license under the contributor's essential patent claims, to
505
make, use, sell, offer for sale, import and otherwise run, modify and
506
propagate the contents of its contributor version.</p>
508
<p>In the following three paragraphs, a “patent license” is any express
509
agreement or commitment, however denominated, not to enforce a patent
510
(such as an express permission to practice a patent or covenant not to
511
sue for patent infringement). To “grant” such a patent license to a
512
party means to make such an agreement or commitment not to enforce a
513
patent against the party.</p>
515
<p>If you convey a covered work, knowingly relying on a patent license,
516
and the Corresponding Source of the work is not available for anyone
517
to copy, free of charge and under the terms of this License, through a
518
publicly available network server or other readily accessible means,
519
then you must either (1) cause the Corresponding Source to be so
520
available, or (2) arrange to deprive yourself of the benefit of the
521
patent license for this particular work, or (3) arrange, in a manner
522
consistent with the requirements of this License, to extend the patent
523
license to downstream recipients. “Knowingly relying” means you have
524
actual knowledge that, but for the patent license, your conveying the
525
covered work in a country, or your recipient's use of the covered work
526
in a country, would infringe one or more identifiable patents in that
527
country that you have reason to believe are valid.</p>
529
<p>If, pursuant to or in connection with a single transaction or
530
arrangement, you convey, or propagate by procuring conveyance of, a
531
covered work, and grant a patent license to some of the parties
532
receiving the covered work authorizing them to use, propagate, modify
533
or convey a specific copy of the covered work, then the patent license
534
you grant is automatically extended to all recipients of the covered
535
work and works based on it.</p>
537
<p>A patent license is “discriminatory” if it does not include within
538
the scope of its coverage, prohibits the exercise of, or is
539
conditioned on the non-exercise of one or more of the rights that are
540
specifically granted under this License. You may not convey a covered
541
work if you are a party to an arrangement with a third party that is
542
in the business of distributing software, under which you make payment
543
to the third party based on the extent of your activity of conveying
544
the work, and under which the third party grants, to any of the
545
parties who would receive the covered work from you, a discriminatory
546
patent license (a) in connection with copies of the covered work
547
conveyed by you (or copies made from those copies), or (b) primarily
548
for and in connection with specific products or compilations that
549
contain the covered work, unless you entered into that arrangement,
550
or that patent license was granted, prior to 28 March 2007.</p>
552
<p>Nothing in this License shall be construed as excluding or limiting
553
any implied license or other defenses to infringement that may
554
otherwise be available to you under applicable patent law.</p>
556
<h4><a name="section12"></a>12. No Surrender of Others' Freedom.</h4>
558
<p>If conditions are imposed on you (whether by court order, agreement or
559
otherwise) that contradict the conditions of this License, they do not
560
excuse you from the conditions of this License. If you cannot convey a
561
covered work so as to satisfy simultaneously your obligations under this
562
License and any other pertinent obligations, then as a consequence you may
563
not convey it at all. For example, if you agree to terms that obligate you
564
to collect a royalty for further conveying from those to whom you convey
565
the Program, the only way you could satisfy both those terms and this
566
License would be to refrain entirely from conveying the Program.</p>
568
<h4><a name="section13"></a>13. Use with the GNU Affero General Public License.</h4>
570
<p>Notwithstanding any other provision of this License, you have
571
permission to link or combine any covered work with a work licensed
572
under version 3 of the GNU Affero General Public License into a single
573
combined work, and to convey the resulting work. The terms of this
574
License will continue to apply to the part which is the covered work,
575
but the special requirements of the GNU Affero General Public License,
576
section 13, concerning interaction through a network will apply to the
577
combination as such.</p>
579
<h4><a name="section14"></a>14. Revised Versions of this License.</h4>
581
<p>The Free Software Foundation may publish revised and/or new versions of
582
the GNU General Public License from time to time. Such new versions will
583
be similar in spirit to the present version, but may differ in detail to
584
address new problems or concerns.</p>
586
<p>Each version is given a distinguishing version number. If the
587
Program specifies that a certain numbered version of the GNU General
588
Public License “or any later version” applies to it, you have the
589
option of following the terms and conditions either of that numbered
590
version or of any later version published by the Free Software
591
Foundation. If the Program does not specify a version number of the
592
GNU General Public License, you may choose any version ever published
593
by the Free Software Foundation.</p>
595
<p>If the Program specifies that a proxy can decide which future
596
versions of the GNU General Public License can be used, that proxy's
597
public statement of acceptance of a version permanently authorizes you
598
to choose that version for the Program.</p>
600
<p>Later license versions may give you additional or different
601
permissions. However, no additional obligations are imposed on any
602
author or copyright holder as a result of your choosing to follow a
605
<h4><a name="section15"></a>15. Disclaimer of Warranty.</h4>
607
<p>THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
608
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
609
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY
610
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
611
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
612
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
613
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
614
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.</p>
616
<h4><a name="section16"></a>16. Limitation of Liability.</h4>
618
<p>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
619
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
620
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
621
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
622
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
623
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
624
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
625
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
628
<h4><a name="section17"></a>17. Interpretation of Sections 15 and 16.</h4>
630
<p>If the disclaimer of warranty and limitation of liability provided
631
above cannot be given local legal effect according to their terms,
632
reviewing courts shall apply local law that most closely approximates
633
an absolute waiver of all civil liability in connection with the
634
Program, unless a warranty or assumption of liability accompanies a
635
copy of the Program in return for a fee.</p>
637
<p>END OF TERMS AND CONDITIONS</p>
639
<h3><a name="howto"></a>How to Apply These Terms to Your New Programs</h3>
641
<p>If you develop a new program, and you want it to be of the greatest
642
possible use to the public, the best way to achieve this is to make it
643
free software which everyone can redistribute and change under these terms.</p>
645
<p>To do so, attach the following notices to the program. It is safest
646
to attach them to the start of each source file to most effectively
647
state the exclusion of warranty; and each file should have at least
648
the “copyright” line and a pointer to where the full notice is found.</p>
650
<pre> <one line to give the program's name and a brief idea of what it does.>
651
Copyright (C) <year> <name of author>
653
This program is free software: you can redistribute it and/or modify
654
it under the terms of the GNU General Public License as published by
655
the Free Software Foundation, either version 3 of the License, or
656
(at your option) any later version.
658
This program is distributed in the hope that it will be useful,
659
but WITHOUT ANY WARRANTY; without even the implied warranty of
660
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
661
GNU General Public License for more details.
663
You should have received a copy of the GNU General Public License
664
along with this program. If not, see <http://www.gnu.org/licenses/>.
667
<p>Also add information on how to contact you by electronic and paper mail.</p>
669
<p>If the program does terminal interaction, make it output a short
670
notice like this when it starts in an interactive mode:</p>
672
<pre> <program> Copyright (C) <year> <name of author>
673
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
674
This is free software, and you are welcome to redistribute it
675
under certain conditions; type `show c' for details.
678
<p>The hypothetical commands `show w' and `show c' should show the appropriate
679
parts of the General Public License. Of course, your program's commands
680
might be different; for a GUI interface, you would use an “about box”.</p>
682
<p>You should also get your employer (if you work as a programmer) or school,
683
if any, to sign a “copyright disclaimer” for the program, if necessary.
684
For more information on this, and how to apply and follow the GNU GPL, see
685
<<a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>>.</p>
687
<p>The GNU General Public License does not permit incorporating your program
688
into proprietary programs. If your program is a subroutine library, you
689
may consider it more useful to permit linking proprietary applications with
690
the library. If this is what you want to do, use the GNU Lesser General
691
Public License instead of this License. But first, please read
692
<<a href="http://www.gnu.org/philosophy/why-not-lgpl.html">http://www.gnu.org/philosophy/why-not-lgpl.html</a>>.</p>
added
removed
help/GNU_GPL_3_0.html
