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1<appendix xmlns="http://docbook.org/ns/docbook" version="5.0"
2	  xml:id="appendix.gpl-3.0"><info><title>
3    <acronym>GNU</acronym> General Public License version 3
4  </title></info>
5  <?dbhtml filename="appendix_gpl.html"?>
6
7  <para>
8    Version 3, 29 June 2007
9  </para>
10  <para>
11    Copyright © 2007 Free Software Foundation, Inc.
12    <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://www.fsf.org">https://www.fsf.org</link>
13  </para>
14  <para>
15    Everyone is permitted to copy and distribute verbatim copies of this license
16    document, but changing it is not allowed.
17  </para>
18  <bridgehead xml:id="gpl-3-preamble" renderas="sect1">
19    Preamble
20  </bridgehead>
21  <para>
22    The <acronym>GNU</acronym> General Public License is a free, copyleft
23    license for software and other kinds of works.
24  </para>
25  <para>
26    The licenses for most software and other practical works are designed to
27    take away your freedom to share and change the works.  By contrast, the
28    <acronym>GNU</acronym> General Public License is intended to guarantee your
29    freedom to share and change all versions of a program—to make sure it
30    remains free software for all its users.  We, the Free Software Foundation,
31    use the <acronym>GNU</acronym> General Public License for most of our
32    software; it applies also to any other work released this way by its
33    authors.  You can apply it to your programs, too.
34  </para>
35  <para>
36    When we speak of free software, we are referring to freedom, not price.  Our
37    General Public Licenses are designed to make sure that you have the freedom
38    to distribute copies of free software (and charge for them if you wish),
39    that you receive source code or can get it if you want it, that you can
40    change the software or use pieces of it in new free programs, and that you
41    know you can do these things.
42  </para>
43  <para>
44    To protect your rights, we need to prevent others from denying you these
45    rights or asking you to surrender the rights.  Therefore, you have certain
46    responsibilities if you distribute copies of the software, or if you modify
47    it: responsibilities to respect the freedom of others.
48  </para>
49  <para>
50    For example, if you distribute copies of such a program, whether gratis or
51    for a fee, you must pass on to the recipients the same freedoms that you
52    received.  You must make sure that they, too, receive or can get the source
53    code.  And you must show them these terms so they know their rights.
54  </para>
55  <para>
56    Developers that use the <acronym>GNU</acronym> <acronym>GPL</acronym>
57    protect your rights with two steps: (1) assert copyright on the software,
58    and (2) offer you this License giving you legal permission to copy,
59    distribute and/or modify it.
60  </para>
61  <para>
62    For the developers’ and authors’ protection, the
63    <acronym>GPL</acronym> clearly explains that there is no warranty for this
64    free software.  For both users’ and authors’ sake, the
65    <acronym>GPL</acronym> requires that modified versions be marked as changed,
66    so that their problems will not be attributed erroneously to authors of
67    previous versions.
68  </para>
69  <para>
70    Some devices are designed to deny users access to install or run modified
71    versions of the software inside them, although the manufacturer can do so.
72    This is fundamentally incompatible with the aim of protecting users’
73    freedom to change the software.  The systematic pattern of such abuse occurs
74    in the area of products for individuals to use, which is precisely where it
75    is most unacceptable.  Therefore, we have designed this version of the
76    <acronym>GPL</acronym> to prohibit the practice for those products.  If such
77    problems arise substantially in other domains, we stand ready to extend this
78    provision to those domains in future versions of the <acronym>GPL</acronym>,
79    as needed to protect the freedom of users.
80  </para>
81  <para>
82    Finally, every program is threatened constantly by software patents.  States
83    should not allow patents to restrict development and use of software on
84    general-purpose computers, but in those that do, we wish to avoid the
85    special danger that patents applied to a free program could make it
86    effectively proprietary.  To prevent this, the <acronym>GPL</acronym>
87    assures that patents cannot be used to render the program non-free.
88  </para>
89  <para>
90    The precise terms and conditions for copying, distribution and modification
91    follow.
92  </para>
93  <bridgehead>
94    TERMS AND CONDITIONS
95  </bridgehead>
96  <bridgehead xml:id="gpl-3-definitions" renderas="sect1">
97    0. Definitions.
98  </bridgehead>
99  <para>
100    “This License” refers to version 3 of the <acronym>GNU</acronym>
101    General Public License.
102  </para>
103  <para>
104    “Copyright” also means copyright-like laws that apply to other
105    kinds of works, such as semiconductor masks.
106  </para>
107  <para>
108    “The Program” refers to any copyrightable work licensed under
109    this License.  Each licensee is addressed as “you”.
110    “Licensees” and “recipients” may be individuals or
111    organizations.
112  </para>
113  <para>
114    To “modify” a work means to copy from or adapt all or part of
115    the work in a fashion requiring copyright permission, other than the making
116    of an exact copy.  The resulting work is called a “modified
117    version” of the earlier work or a work “based on” the
118    earlier work.
119  </para>
120  <para>
121    A “covered work” means either the unmodified Program or a work
122    based on the Program.
123  </para>
124  <para>
125    To “propagate” a work means to do anything with it that, without
126    permission, would make you directly or secondarily liable for infringement
127    under applicable copyright law, except executing it on a computer or
128    modifying a private copy.  Propagation includes copying, distribution (with
129    or without modification), making available to the public, and in some
130    countries other activities as well.
131  </para>
132  <para>
133    To “convey” a work means any kind of propagation that enables
134    other parties to make or receive copies.  Mere interaction with a user
135    through a computer network, with no transfer of a copy, is not conveying.
136  </para>
137  <para>
138    An interactive user interface displays “Appropriate Legal
139    Notices” to the extent that it includes a convenient and prominently
140    visible feature that (1) displays an appropriate copyright notice, and (2)
141    tells the user that there is no warranty for the work (except to the extent
142    that warranties are provided), that licensees may convey the work under this
143    License, and how to view a copy of this License.  If the interface presents
144    a list of user commands or options, such as a menu, a prominent item in the
145    list meets this criterion.
146  </para>
147  <bridgehead xml:id="SourceCode" renderas="sect1">
148    1. Source Code.
149  </bridgehead>
150  <para>
151    The “source code” for a work means the preferred form of the
152    work for making modifications to it.  “Object code” means any
153    non-source form of a work.
154  </para>
155  <para>
156    A “Standard Interface” means an interface that either is an
157    official standard defined by a recognized standards body, or, in the case of
158    interfaces specified for a particular programming language, one that is
159    widely used among developers working in that language.
160  </para>
161  <para>
162    The “System Libraries” of an executable work include anything,
163    other than the work as a whole, that (a) is included in the normal form of
164    packaging a Major Component, but which is not part of that Major Component,
165    and (b) serves only to enable use of the work with that Major Component, or
166    to implement a Standard Interface for which an implementation is available
167    to the public in source code form.  A “Major Component”, in this
168    context, means a major essential component (kernel, window system, and so
169    on) of the specific operating system (if any) on which the executable work
170    runs, or a compiler used to produce the work, or an object code interpreter
171    used to run it.
172  </para>
173  <para>
174    The “Corresponding Source” for a work in object code form means
175    all the source code needed to generate, install, and (for an executable
176    work) run the object code and to modify the work, including scripts to
177    control those activities.  However, it does not include the work’s
178    System Libraries, or general-purpose tools or generally available free
179    programs which are used unmodified in performing those activities but which
180    are not part of the work.  For example, Corresponding Source includes
181    interface definition files associated with source files for the work, and
182    the source code for shared libraries and dynamically linked subprograms that
183    the work is specifically designed to require, such as by intimate data
184    communication or control flow between those subprograms and other parts of
185    the work.
186  </para>
187  <para>
188    The Corresponding Source need not include anything that users can regenerate
189    automatically from other parts of the Corresponding Source.
190  </para>
191  <para>
192    The Corresponding Source for a work in source code form is that same work.
193  </para>
194  <bridgehead xml:id="BasicPermissions" renderas="sect1">
195    2. Basic Permissions.
196  </bridgehead>
197  <para>
198    All rights granted under this License are granted for the term of copyright
199    on the Program, and are irrevocable provided the stated conditions are met.
200    This License explicitly affirms your unlimited permission to run the
201    unmodified Program.  The output from running a covered work is covered by
202    this License only if the output, given its content, constitutes a covered
203    work.  This License acknowledges your rights of fair use or other
204    equivalent, as provided by copyright law.
205  </para>
206  <para>
207    You may make, run and propagate covered works that you do not convey,
208    without conditions so long as your license otherwise remains in force.  You
209    may convey covered works to others for the sole purpose of having them make
210    modifications exclusively for you, or provide you with facilities for
211    running those works, provided that you comply with the terms of this License
212    in conveying all material for which you do not control copyright.  Those
213    thus making or running the covered works for you must do so exclusively on
214    your behalf, under your direction and control, on terms that prohibit them
215    from making any copies of your copyrighted material outside their
216    relationship with you.
217  </para>
218  <para>
219    Conveying under any other circumstances is permitted solely under the
220    conditions stated below.  Sublicensing is not allowed; section 10 makes it
221    unnecessary.
222  </para>
223  <bridgehead xml:id="Protecting" renderas="sect1">
224    3. Protecting Users’ Legal Rights From Anti-Circumvention Law.
225  </bridgehead>
226  <para>
227    No covered work shall be deemed part of an effective technological measure
228    under any applicable law fulfilling obligations under article 11 of the WIPO
229    copyright treaty adopted on 20 December 1996, or similar laws prohibiting or
230    restricting circumvention of such measures.
231  </para>
232  <para>
233    When you convey a covered work, you waive any legal power to forbid
234    circumvention of technological measures to the extent such circumvention is
235    effected by exercising rights under this License with respect to the covered
236    work, and you disclaim any intention to limit operation or modification of
237    the work as a means of enforcing, against the work’s users, your or
238    third parties’ legal rights to forbid circumvention of technological
239    measures.
240  </para>
241  <bridgehead xml:id="ConveyingVerbatim" renderas="sect1">
242    4. Conveying Verbatim Copies.
243  </bridgehead>
244  <para>
245    You may convey verbatim copies of the Program’s source code as you
246    receive it, in any medium, provided that you conspicuously and appropriately
247    publish on each copy an appropriate copyright notice; keep intact all
248    notices stating that this License and any non-permissive terms added in
249    accord with section 7 apply to the code; keep intact all notices of the
250    absence of any warranty; and give all recipients a copy of this License
251    along with the Program.
252  </para>
253  <para>
254    You may charge any price or no price for each copy that you convey, and you
255    may offer support or warranty protection for a fee.
256  </para>
257  <bridgehead xml:id="ConveyingModified" renderas="sect1">
258    5. Conveying Modified Source Versions.
259  </bridgehead>
260  <para>
261    You may convey a work based on the Program, or the modifications to produce
262    it from the Program, in the form of source code under the terms of section
263    4, provided that you also meet all of these conditions:
264  </para>
265  <orderedlist numeration="loweralpha" inheritnum="ignore" continuation="restarts">
266    <listitem>
267      <para>
268        The work must carry prominent notices stating that you modified it, and
269        giving a relevant date.
270      </para>
271    </listitem>
272    <listitem>
273      <para>
274        The work must carry prominent notices stating that it is released under
275        this License and any conditions added under section 7.  This requirement
276        modifies the requirement in section 4 to “keep intact all
277        notices”.
278      </para>
279    </listitem>
280    <listitem>
281      <para>
282        You must license the entire work, as a whole, under this License to
283        anyone who comes into possession of a copy.  This License will therefore
284        apply, along with any applicable section 7 additional terms, to the
285        whole of the work, and all its parts, regardless of how they are
286        packaged.  This License gives no permission to license the work in any
287        other way, but it does not invalidate such permission if you have
288        separately received it.
289      </para>
290    </listitem>
291    <listitem>
292      <para>
293        If the work has interactive user interfaces, each must display
294        Appropriate Legal Notices; however, if the Program has interactive
295        interfaces that do not display Appropriate Legal Notices, your work need
296        not make them do so.
297      </para>
298    </listitem>
299  </orderedlist>
300  <para>
301    A compilation of a covered work with other separate and independent works,
302    which are not by their nature extensions of the covered work, and which are
303    not combined with it such as to form a larger program, in or on a volume of
304    a storage or distribution medium, is called an “aggregate” if
305    the compilation and its resulting copyright are not used to limit the access
306    or legal rights of the compilation’s users beyond what the individual works
307    permit.  Inclusion of a covered work in an aggregate does not cause
308    this License to apply to the other parts of the aggregate.
309  </para>
310  <bridgehead xml:id="ConveyingNonSource" renderas="sect1">
311    6. Conveying Non-Source Forms.
312  </bridgehead>
313  <para>
314    You may convey a covered work in object code form under the terms of
315    sections 4 and 5, provided that you also convey the machine-readable
316    Corresponding Source under the terms of this License, in one of these ways:
317  </para>
318  <orderedlist numeration="loweralpha" inheritnum="ignore" continuation="restarts">
319    <listitem>
320      <para>
321        Convey the object code in, or embodied in, a physical product (including
322        a physical distribution medium), accompanied by the Corresponding Source
323        fixed on a durable physical medium customarily used for software
324        interchange.
325      </para>
326    </listitem>
327    <listitem>
328      <para>
329        Convey the object code in, or embodied in, a physical product (including
330        a physical distribution medium), accompanied by a written offer, valid
331        for at least three years and valid for as long as you offer spare parts
332        or customer support for that product model, to give anyone who possesses
333        the object code either (1) a copy of the Corresponding Source for all
334        the software in the product that is covered by this License, on a
335        durable physical medium customarily used for software interchange, for a
336        price no more than your reasonable cost of physically performing this
337        conveying of source, or (2) access to copy the Corresponding Source from
338        a network server at no charge.
339      </para>
340    </listitem>
341    <listitem>
342      <para>
343        Convey individual copies of the object code with a copy of the written
344        offer to provide the Corresponding Source.  This alternative is allowed
345        only occasionally and noncommercially, and only if you received the
346        object code with such an offer, in accord with subsection 6b.
347      </para>
348    </listitem>
349    <listitem>
350      <para>
351        Convey the object code by offering access from a designated place
352        (gratis or for a charge), and offer equivalent access to the
353        Corresponding Source in the same way through the same place at no
354        further charge.  You need not require recipients to copy the
355        Corresponding Source along with the object code.  If the place to copy
356        the object code is a network server, the Corresponding Source may be on
357        a different server (operated by you or a third party) that supports
358        equivalent copying facilities, provided you maintain clear directions
359        next to the object code saying where to find the Corresponding Source.
360        Regardless of what server hosts the Corresponding Source, you remain
361        obligated to ensure that it is available for as long as needed to
362        satisfy these requirements.
363      </para>
364    </listitem>
365    <listitem>
366      <para>
367        Convey the object code using peer-to-peer transmission, provided you
368        inform other peers where the object code and Corresponding Source of the
369        work are being offered to the general public at no charge under
370        subsection 6d.
371      </para>
372    </listitem>
373  </orderedlist>
374  <para>
375    A separable portion of the object code, whose source code is excluded from
376    the Corresponding Source as a System Library, need not be included in
377    conveying the object code work.
378  </para>
379  <para>
380    A “User Product” is either (1) a “consumer product”,
381    which means any tangible personal property which is normally used for
382    personal, family, or household purposes, or (2) anything designed or sold
383    for incorporation into a dwelling.  In determining whether a product is a
384    consumer product, doubtful cases shall be resolved in favor of coverage.
385    For a particular product received by a particular user, “normally
386    used” refers to a typical or common use of that class of product,
387    regardless of the status of the particular user or of the way in which the
388    particular user actually uses, or expects or is expected to use, the
389    product.  A product is a consumer product regardless of whether the product
390    has substantial commercial, industrial or non-consumer uses, unless such
391    uses represent the only significant mode of use of the product.
392  </para>
393  <para>
394    “Installation Information” for a User Product means any methods,
395    procedures, authorization keys, or other information required to install and
396    execute modified versions of a covered work in that User Product from a
397    modified version of its Corresponding Source.  The information must suffice
398    to ensure that the continued functioning of the modified object code is in
399    no case prevented or interfered with solely because modification has been
400    made.
401  </para>
402  <para>
403    If you convey an object code work under this section in, or with, or
404    specifically for use in, a User Product, and the conveying occurs as part of
405    a transaction in which the right of possession and use of the User Product
406    is transferred to the recipient in perpetuity or for a fixed term
407    (regardless of how the transaction is characterized), the Corresponding
408    Source conveyed under this section must be accompanied by the Installation
409    Information.  But this requirement does not apply if neither you nor any
410    third party retains the ability to install modified object code on the User
411    Product (for example, the work has been installed in
412    <acronym>ROM</acronym>).
413  </para>
414  <para>
415    The requirement to provide Installation Information does not include a
416    requirement to continue to provide support service, warranty, or updates for
417    a work that has been modified or installed by the recipient, or for the User
418    Product in which it has been modified or installed.  Access to a network may
419    be denied when the modification itself materially and adversely affects the
420    operation of the network or violates the rules and protocols for
421    communication across the network.
422  </para>
423  <para>
424    Corresponding Source conveyed, and Installation Information provided, in
425    accord with this section must be in a format that is publicly documented
426    (and with an implementation available to the public in source code form),
427    and must require no special password or key for unpacking, reading or
428    copying.
429  </para>
430   <bridgehead xml:id="AdditionalTerms" renderas="sect1">
431     7. Additional Terms.
432   </bridgehead>
433   <para>
434     “Additional permissions” are terms that supplement the terms of
435     this License by making exceptions from one or more of its conditions.
436     Additional permissions that are applicable to the entire Program shall be
437     treated as though they were included in this License, to the extent that
438     they are valid under applicable law.  If additional permissions apply only
439     to part of the Program, that part may be used separately under those
440     permissions, but the entire Program remains governed by this License
441     without regard to the additional permissions.
442   </para>
443   <para>
444     When you convey a copy of a covered work, you may at your option remove any
445     additional permissions from that copy, or from any part of it.  (Additional
446     permissions may be written to require their own removal in certain cases
447     when you modify the work.)  You may place additional permissions on
448     material, added by you to a covered work, for which you have or can give
449     appropriate copyright permission.
450   </para>
451   <para>
452     Notwithstanding any other provision of this License, for material you add
453     to a covered work, you may (if authorized by the copyright holders of that
454     material) supplement the terms of this License with terms:
455   </para>
456   <orderedlist numeration="loweralpha" inheritnum="ignore" continuation="restarts">
457     <listitem>
458       <para>
459         Disclaiming warranty or limiting liability differently from the terms
460         of sections 15 and 16 of this License; or
461       </para>
462     </listitem>
463     <listitem>
464       <para>
465         Requiring preservation of specified reasonable legal notices or author
466         attributions in that material or in the Appropriate Legal Notices
467         displayed by works containing it; or
468       </para>
469     </listitem>
470     <listitem>
471       <para>
472         Prohibiting misrepresentation of the origin of that material, or
473         requiring that modified versions of such material be marked in
474         reasonable ways as different from the original version; or
475       </para>
476     </listitem>
477     <listitem>
478       <para>
479         Limiting the use for publicity purposes of names of licensors or
480         authors of the material; or
481       </para>
482     </listitem>
483     <listitem>
484       <para>
485         Declining to grant rights under trademark law for use of some trade
486         names, trademarks, or service marks; or
487       </para>
488     </listitem>
489     <listitem>
490       <para>
491         Requiring indemnification of licensors and authors of that material by
492         anyone who conveys the material (or modified versions of it) with
493         contractual assumptions of liability to the recipient, for any
494         liability that these contractual assumptions directly impose on those
495         licensors and authors.
496       </para>
497     </listitem>
498   </orderedlist>
499   <para>
500     All other non-permissive additional terms are considered “further
501     restrictions” within the meaning of section 10.  If the Program as
502     you received it, or any part of it, contains a notice stating that it is
503     governed by this License along with a term that is a further restriction,
504     you may remove that term.  If a license document contains a further
505     restriction but permits relicensing or conveying under this License, you
506     may add to a covered work material governed by the terms of that license
507     document, provided that the further restriction does not survive such
508     relicensing or conveying.
509   </para>
510   <para>
511     If you add terms to a covered work in accord with this section, you must
512     place, in the relevant source files, a statement of the additional terms
513     that apply to those files, or a notice indicating where to find the
514     applicable terms.
515   </para>
516   <para>
517     Additional terms, permissive or non-permissive, may be stated in the form
518     of a separately written license, or stated as exceptions; the above
519     requirements apply either way.
520   </para>
521   <bridgehead xml:id="gpl-3-termination" renderas="sect1">
522     8. Termination.
523   </bridgehead>
524   <para>
525     You may not propagate or modify a covered work except as expressly provided
526     under this License.  Any attempt otherwise to propagate or modify it is
527     void, and will automatically terminate your rights under this License
528     (including any patent licenses granted under the third paragraph of section
529     11).
530   </para>
531   <para>
532     However, if you cease all violation of this License, then your license from
533     a particular copyright holder is reinstated (a) provisionally, unless and
534     until the copyright holder explicitly and finally terminates your license,
535     and (b) permanently, if the copyright holder fails to notify you of the
536     violation by some reasonable means prior to 60 days after the cessation.
537   </para>
538   <para>
539     Moreover, your license from a particular copyright holder is reinstated
540     permanently if the copyright holder notifies you of the violation by some
541     reasonable means, this is the first time you have received notice of
542     violation of this License (for any work) from that copyright holder, and
543     you cure the violation prior to 30 days after your receipt of the notice.
544   </para>
545   <para>
546     Termination of your rights under this section does not terminate the
547     licenses of parties who have received copies or rights from you under this
548     License.  If your rights have been terminated and not permanently
549     reinstated, you do not qualify to receive new licenses for the same
550     material under section 10.
551   </para>
552   <bridgehead xml:id="AcceptanceNotRequired" renderas="sect1">
553     9. Acceptance Not Required for Having Copies.
554   </bridgehead>
555   <para>
556     You are not required to accept this License in order to receive or run a
557     copy of the Program.  Ancillary propagation of a covered work occurring
558     solely as a consequence of using peer-to-peer transmission to receive a
559     copy likewise does not require acceptance.  However, nothing other than
560     this License grants you permission to propagate or modify any covered work.
561     These actions infringe copyright if you do not accept this License.
562     Therefore, by modifying or propagating a covered work, you indicate your
563     acceptance of this License to do so.
564   </para>
565   <bridgehead xml:id="AutomaticDownstream" renderas="sect1">
566     10. Automatic Licensing of Downstream Recipients.
567   </bridgehead>
568   <para>
569     Each time you convey a covered work, the recipient automatically receives a
570     license from the original licensors, to run, modify and propagate that
571     work, subject to this License.  You are not responsible for enforcing
572     compliance by third parties with this License.
573   </para>
574   <para>
575     An “entity transaction” is a transaction transferring control
576     of an organization, or substantially all assets of one, or subdividing an
577     organization, or merging organizations.  If propagation of a covered work
578     results from an entity transaction, each party to that transaction who
579     receives a copy of the work also receives whatever licenses to the work the
580     party’s predecessor in interest had or could give under the previous
581     paragraph, plus a right to possession of the Corresponding Source of the
582     work from the predecessor in interest, if the predecessor has it or can get
583     it with reasonable efforts.
584   </para>
585   <para>
586     You may not impose any further restrictions on the exercise of the rights
587     granted or affirmed under this License.  For example, you may not impose a
588     license fee, royalty, or other charge for exercise of rights granted under
589     this License, and you may not initiate litigation (including a cross-claim
590     or counterclaim in a lawsuit) alleging that any patent claim is infringed
591     by making, using, selling, offering for sale, or importing the Program or
592     any portion of it.
593   </para>
594  <bridgehead xml:id="Patents" renderas="sect1">
595    11. Patents.
596  </bridgehead>
597  <para>
598    A “contributor” is a copyright holder who authorizes use under
599    this License of the Program or a work on which the Program is based.  The
600    work thus licensed is called the contributor’s “contributor
601    version”.
602  </para>
603  <para>
604    A contributor’s “essential patent claims” are all patent
605    claims owned or controlled by the contributor, whether already acquired or
606    hereafter acquired, that would be infringed by some manner, permitted by
607    this License, of making, using, or selling its contributor version, but do
608    not include claims that would be infringed only as a consequence of further
609    modification of the contributor version.  For purposes of this definition,
610    “control” includes the right to grant patent sublicenses in a
611    manner consistent with the requirements of this License.
612  </para>
613  <para>
614    Each contributor grants you a non-exclusive, worldwide, royalty-free patent
615    license under the contributor’s essential patent claims, to make, use,
616    sell, offer for sale, import and otherwise run, modify and propagate the
617    contents of its contributor version.
618  </para>
619  <para>
620    In the following three paragraphs, a “patent license” is any
621    express agreement or commitment, however denominated, not to enforce a
622    patent (such as an express permission to practice a patent or covenant not
623    to sue for patent infringement).  To “grant” such a patent
624    license to a party means to make such an agreement or commitment not to
625    enforce a patent against the party.
626  </para>
627  <para>
628    If you convey a covered work, knowingly relying on a patent license, and the
629    Corresponding Source of the work is not available for anyone to copy, free
630    of charge and under the terms of this License, through a publicly available
631    network server or other readily accessible means, then you must either (1)
632    cause the Corresponding Source to be so available, or (2) arrange to deprive
633    yourself of the benefit of the patent license for this particular work, or
634    (3) arrange, in a manner consistent with the requirements of this License,
635    to extend the patent license to downstream recipients.  “Knowingly
636    relying” means you have actual knowledge that, but for the patent
637    license, your conveying the covered work in a country, or your
638    recipient’s use of the covered work in a country, would infringe one
639    or more identifiable patents in that country that you have reason to believe
640    are valid.
641  </para>
642  <para>
643    If, pursuant to or in connection with a single transaction or arrangement,
644    you convey, or propagate by procuring conveyance of, a covered work, and
645    grant a patent license to some of the parties receiving the covered work
646    authorizing them to use, propagate, modify or convey a specific copy of the
647    covered work, then the patent license you grant is automatically extended to
648    all recipients of the covered work and works based on it.
649  </para>
650  <para>
651    A patent license is “discriminatory” if it does not include
652    within the scope of its coverage, prohibits the exercise of, or is
653    conditioned on the non-exercise of one or more of the rights that are
654    specifically granted under this License.  You may not convey a covered work
655    if you are a party to an arrangement with a third party that is in the
656    business of distributing software, under which you make payment to the third
657    party based on the extent of your activity of conveying the work, and under
658    which the third party grants, to any of the parties who would receive the
659    covered work from you, a discriminatory patent license (a) in connection
660    with copies of the covered work conveyed by you (or copies made from those
661    copies), or (b) primarily for and in connection with specific products or
662    compilations that contain the covered work, unless you entered into that
663    arrangement, or that patent license was granted, prior to 28 March 2007.
664  </para>
665  <para>
666    Nothing in this License shall be construed as excluding or limiting any
667    implied license or other defenses to infringement that may otherwise be
668    available to you under applicable patent law.
669  </para>
670  <bridgehead xml:id="NoSurrender" renderas="sect1">
671    12. No Surrender of Others’ Freedom.
672  </bridgehead>
673  <para>
674    If conditions are imposed on you (whether by court order, agreement or
675    otherwise) that contradict the conditions of this License, they do not
676    excuse you from the conditions of this License.  If you cannot convey a
677    covered work so as to satisfy simultaneously your obligations under this
678    License and any other pertinent obligations, then as a consequence you may
679    not convey it at all.  For example, if you agree to terms that obligate you
680    to collect a royalty for further conveying from those to whom you convey the
681    Program, the only way you could satisfy both those terms and this License
682    would be to refrain entirely from conveying the Program.
683  </para>
684  <bridgehead xml:id="UsedWithAGPL" renderas="sect1">
685    13. Use with the <acronym>GNU</acronym> Affero General Public License.
686  </bridgehead>
687  <para>
688    Notwithstanding any other provision of this License, you have permission to
689    link or combine any covered work with a work licensed under version 3 of the
690    <acronym>GNU</acronym> Affero General Public License into a single combined
691    work, and to convey the resulting work.  The terms of this License will
692    continue to apply to the part which is the covered work, but the special
693    requirements of the <acronym>GNU</acronym> Affero General Public License,
694    section 13, concerning interaction through a network will apply to the
695    combination as such.
696  </para>
697  <bridgehead xml:id="RevisedVersions" renderas="sect1">
698    14. Revised Versions of this License.
699  </bridgehead>
700  <para>
701    The Free Software Foundation may publish revised and/or new versions of the
702    <acronym>GNU</acronym> General Public License from time to time.  Such new
703    versions will be similar in spirit to the present version, but may differ in
704    detail to address new problems or concerns.
705  </para>
706  <para>
707    Each version is given a distinguishing version number.  If the Program
708    specifies that a certain numbered version of the <acronym>GNU</acronym>
709    General Public License “or any later version” applies to it, you
710    have the option of following the terms and conditions either of that
711    numbered version or of any later version published by the Free Software
712    Foundation.  If the Program does not specify a version number of the
713    <acronym>GNU</acronym> General Public License, you may choose any version
714    ever published by the Free Software Foundation.
715  </para>
716  <para>
717    If the Program specifies that a proxy can decide which future versions of
718    the <acronym>GNU</acronym> General Public License can be used, that
719    proxy’s public statement of acceptance of a version permanently
720    authorizes you to choose that version for the Program.
721  </para>
722  <para>
723    Later license versions may give you additional or different permissions.
724    However, no additional obligations are imposed on any author or copyright
725    holder as a result of your choosing to follow a later version.
726  </para>
727  <bridgehead xml:id="WarrantyDisclaimer" renderas="sect1">
728    15. Disclaimer of Warranty.
729  </bridgehead>
730  <para>
731    THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE
732    LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
733    OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF
734    ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
735    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
736    THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH
737    YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
738    NECESSARY SERVICING, REPAIR OR CORRECTION.
739  </para>
740  <bridgehead xml:id="LiabilityLimitation" renderas="sect1">
741    16. Limitation of Liability.
742  </bridgehead>
743  <para>
744    IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL
745    ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE
746    PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
747    GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
748    OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
749    OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
750    PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
751    EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
752    SUCH DAMAGES.
753  </para>
754  <bridgehead xml:id="InterpretationSecs1516" renderas="sect1">
755    17. Interpretation of Sections 15 and 16.
756  </bridgehead>
757  <para>
758    If the disclaimer of warranty and limitation of liability provided above
759    cannot be given local legal effect according to their terms, reviewing
760    courts shall apply local law that most closely approximates an absolute
761    waiver of all civil liability in connection with the Program, unless a
762    warranty or assumption of liability accompanies a copy of the Program in
763    return for a fee.
764  </para>
765  <bridgehead>
766    END OF TERMS AND CONDITIONS
767  </bridgehead>
768  <bridgehead xml:id="HowToApply" renderas="sect1">
769    How to Apply These Terms to Your New Programs
770  </bridgehead>
771  <para>
772    If you develop a new program, and you want it to be of the greatest possible
773    use to the public, the best way to achieve this is to make it free software
774    which everyone can redistribute and change under these terms.
775  </para>
776  <para>
777    To do so, attach the following notices to the program.  It is safest to
778    attach them to the start of each source file to most effectively state the
779    exclusion of warranty; and each file should have at least the
780    “copyright” line and a pointer to where the full notice is
781    found.
782  </para>
783  <screen>
784<replaceable>one line to give the program’s name and a brief idea of what it does.</replaceable>
785Copyright (C) <replaceable>year</replaceable> <replaceable>name of author</replaceable>
786
787This program is free software: you can redistribute it and/or modify
788it under the terms of the <acronym>GNU</acronym> General Public License as published by
789the Free Software Foundation, either version 3 of the License, or
790(at your option) any later version.
791
792This program is distributed in the hope that it will be useful,
793but WITHOUT ANY WARRANTY; without even the implied warranty of
794MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
795<acronym>GNU</acronym> General Public License for more details.
796
797You should have received a copy of the <acronym>GNU</acronym> General Public License
798along with this program.  If not, see <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</link>.
799  </screen>
800  <para>
801    Also add information on how to contact you by electronic and paper mail.
802  </para>
803  <para>
804    If the program does terminal interaction, make it output a short notice like
805    this when it starts in an interactive mode:
806  </para>
807  <screen>
808<replaceable>program</replaceable> Copyright (C) <replaceable>year</replaceable> <replaceable>name of author</replaceable>
809This program comes with ABSOLUTELY NO WARRANTY; for details type ‘<literal>show w</literal>’.
810This is free software, and you are welcome to redistribute it
811under certain conditions; type ‘<literal>show c</literal>’ for details.
812  </screen>
813  <para>
814    The hypothetical commands ‘<literal>show w</literal>’ and
815    ‘<literal>show c</literal>’ should show the appropriate parts of
816    the General Public License.  Of course, your program’s commands might be
817    different; for a GUI interface, you would use an “about box”.
818  </para>
819  <para>
820    You should also get your employer (if you work as a programmer) or school,
821    if any, to sign a “copyright disclaimer” for the program, if
822    necessary.  For more information on this, and how to apply and follow the
823    <acronym>GNU</acronym> <acronym>GPL</acronym>, see
824    <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</link>.
825  </para>
826  <para>
827    The <acronym>GNU</acronym> General Public License does not permit
828    incorporating your program into proprietary programs.  If your program is a
829    subroutine library, you may consider it more useful to permit linking
830    proprietary applications with the library.  If this is what you want to do,
831    use the <acronym>GNU</acronym> Lesser General Public License instead of this
832    License.  But first, please read <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://www.gnu.org/licenses/why-not-lgpl.html">https://www.gnu.org/licenses/why-not-lgpl.html</link>.
833  </para>
834</appendix>
835