Mauro Carvalho Chehab | 059b1c5 | 2020-08-26 09:03:09 +0200 | [diff] [blame] | 1 | .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 2 | |
| 3 | .. _fdl: |
| 4 | |
| 5 | ****************************** |
| 6 | GNU Free Documentation License |
| 7 | ****************************** |
| 8 | |
| 9 | |
| 10 | .. _fdl-preamble: |
| 11 | |
| 12 | 0. PREAMBLE |
| 13 | =========== |
| 14 | |
| 15 | The purpose of this License is to make a manual, textbook, or other |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 16 | written document "free" in the sense of freedom: to assure everyone the |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 17 | effective freedom to copy and redistribute it, with or without modifying |
| 18 | it, either commercially or noncommercially. Secondarily, this License |
| 19 | preserves for the author and publisher a way to get credit for their |
| 20 | work, while not being considered responsible for modifications made by |
| 21 | others. |
| 22 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 23 | This License is a kind of "copyleft", which means that derivative works |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 24 | of the document must themselves be free in the same sense. It |
| 25 | complements the GNU General Public License, which is a copyleft license |
| 26 | designed for free software. |
| 27 | |
| 28 | We have designed this License in order to use it for manuals for free |
| 29 | software, because free software needs free documentation: a free program |
| 30 | should come with manuals providing the same freedoms that the software |
| 31 | does. But this License is not limited to software manuals; it can be |
| 32 | used for any textual work, regardless of subject matter or whether it is |
| 33 | published as a printed book. We recommend this License principally for |
| 34 | works whose purpose is instruction or reference. |
| 35 | |
| 36 | |
| 37 | .. _fdl-section1: |
| 38 | |
| 39 | 1. APPLICABILITY AND DEFINITIONS |
| 40 | ================================ |
| 41 | |
| 42 | |
| 43 | .. _fdl-document: |
| 44 | |
| 45 | This License applies to any manual or other work that contains a notice |
| 46 | placed by the copyright holder saying it can be distributed under the |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 47 | terms of this License. The "Document", below, refers to any such manual |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 48 | or work. Any member of the public is a licensee, and is addressed as |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 49 | "you". |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 50 | |
| 51 | |
| 52 | .. _fdl-modified: |
| 53 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 54 | A "Modified Version" of the Document means any work containing the |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 55 | Document or a portion of it, either copied verbatim, or with |
| 56 | modifications and/or translated into another language. |
| 57 | |
| 58 | |
| 59 | .. _fdl-secondary: |
| 60 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 61 | A "Secondary Section" is a named appendix or a front-matter section of |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 62 | the :ref:`Document <fdl-document>` that deals exclusively with the |
| 63 | relationship of the publishers or authors of the Document to the |
| 64 | Document's overall subject (or to related matters) and contains nothing |
| 65 | that could fall directly within that overall subject. (For example, if |
| 66 | the Document is in part a textbook of mathematics, a Secondary Section |
| 67 | may not explain any mathematics.) The relationship could be a matter of |
| 68 | historical connection with the subject or with related matters, or of |
| 69 | legal, commercial, philosophical, ethical or political position |
| 70 | regarding them. |
| 71 | |
| 72 | |
| 73 | .. _fdl-invariant: |
| 74 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 75 | The "Invariant Sections" are certain |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 76 | :ref:`Secondary Sections <fdl-secondary>` whose titles are designated, |
| 77 | as being those of Invariant Sections, in the notice that says that the |
| 78 | :ref:`Document <fdl-document>` is released under this License. |
| 79 | |
| 80 | |
| 81 | .. _fdl-cover-texts: |
| 82 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 83 | The "Cover Texts" are certain short passages of text that are listed, as |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 84 | Front-Cover Texts or Back-Cover Texts, in the notice that says that the |
| 85 | :ref:`Document <fdl-document>` is released under this License. |
| 86 | |
| 87 | |
| 88 | .. _fdl-transparent: |
| 89 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 90 | A "Transparent" copy of the :ref:`Document <fdl-document>` means a |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 91 | machine-readable copy, represented in a format whose specification is |
| 92 | available to the general public, whose contents can be viewed and edited |
| 93 | directly and straightforwardly with generic text editors or (for images |
| 94 | composed of pixels) generic paint programs or (for drawings) some widely |
| 95 | available drawing editor, and that is suitable for input to text |
| 96 | formatters or for automatic translation to a variety of formats suitable |
| 97 | for input to text formatters. A copy made in an otherwise Transparent |
| 98 | file format whose markup has been designed to thwart or discourage |
| 99 | subsequent modification by readers is not Transparent. A copy that is |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 100 | not "Transparent" is called "Opaque". |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 101 | |
| 102 | Examples of suitable formats for Transparent copies include plain ASCII |
| 103 | without markup, Texinfo input format, LaTeX input format, SGML or XML |
| 104 | using a publicly available DTD, and standard-conforming simple HTML |
| 105 | designed for human modification. Opaque formats include PostScript, PDF, |
| 106 | proprietary formats that can be read and edited only by proprietary word |
| 107 | processors, SGML or XML for which the DTD and/or processing tools are |
| 108 | not generally available, and the machine-generated HTML produced by some |
| 109 | word processors for output purposes only. |
| 110 | |
| 111 | |
| 112 | .. _fdl-title-page: |
| 113 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 114 | The "Title Page" means, for a printed book, the title page itself, plus |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 115 | such following pages as are needed to hold, legibly, the material this |
| 116 | License requires to appear in the title page. For works in formats which |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 117 | do not have any title page as such, "Title Page" means the text near the |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 118 | most prominent appearance of the work's title, preceding the beginning |
| 119 | of the body of the text. |
| 120 | |
| 121 | |
| 122 | .. _fdl-section2: |
| 123 | |
| 124 | 2. VERBATIM COPYING |
| 125 | =================== |
| 126 | |
| 127 | You may copy and distribute the :ref:`Document <fdl-document>` in any |
| 128 | medium, either commercially or noncommercially, provided that this |
| 129 | License, the copyright notices, and the license notice saying this |
| 130 | License applies to the Document are reproduced in all copies, and that |
| 131 | you add no other conditions whatsoever to those of this License. You may |
| 132 | not use technical measures to obstruct or control the reading or further |
| 133 | copying of the copies you make or distribute. However, you may accept |
| 134 | compensation in exchange for copies. If you distribute a large enough |
| 135 | number of copies you must also follow the conditions in |
| 136 | :ref:`section 3 <fdl-section3>`. |
| 137 | |
| 138 | You may also lend copies, under the same conditions stated above, and |
| 139 | you may publicly display copies. |
| 140 | |
| 141 | |
| 142 | .. _fdl-section3: |
| 143 | |
| 144 | 3. COPYING IN QUANTITY |
| 145 | ====================== |
| 146 | |
| 147 | If you publish printed copies of the :ref:`Document <fdl-document>` |
| 148 | numbering more than 100, and the Document's license notice requires |
| 149 | :ref:`Cover Texts <fdl-cover-texts>`, you must enclose the copies in |
| 150 | covers that carry, clearly and legibly, all these Cover Texts: |
| 151 | Front-Cover Texts on the front cover, and Back-Cover Texts on the back |
| 152 | cover. Both covers must also clearly and legibly identify you as the |
| 153 | publisher of these copies. The front cover must present the full title |
| 154 | with all words of the title equally prominent and visible. You may add |
| 155 | other material on the covers in addition. Copying with changes limited |
| 156 | to the covers, as long as they preserve the title of the |
| 157 | :ref:`Document <fdl-document>` and satisfy these conditions, can be |
| 158 | treated as verbatim copying in other respects. |
| 159 | |
| 160 | If the required texts for either cover are too voluminous to fit |
| 161 | legibly, you should put the first ones listed (as many as fit |
| 162 | reasonably) on the actual cover, and continue the rest onto adjacent |
| 163 | pages. |
| 164 | |
| 165 | If you publish or distribute :ref:`Opaque <fdl-transparent>` copies of |
| 166 | the :ref:`Document <fdl-document>` numbering more than 100, you must |
| 167 | either include a machine-readable :ref:`Transparent <fdl-transparent>` |
| 168 | copy along with each Opaque copy, or state in or with each Opaque copy a |
| 169 | publicly-accessible computer-network location containing a complete |
| 170 | Transparent copy of the Document, free of added material, which the |
| 171 | general network-using public has access to download anonymously at no |
| 172 | charge using public-standard network protocols. If you use the latter |
| 173 | option, you must take reasonably prudent steps, when you begin |
| 174 | distribution of Opaque copies in quantity, to ensure that this |
| 175 | Transparent copy will remain thus accessible at the stated location |
| 176 | until at least one year after the last time you distribute an Opaque |
| 177 | copy (directly or through your agents or retailers) of that edition to |
| 178 | the public. |
| 179 | |
| 180 | It is requested, but not required, that you contact the authors of the |
| 181 | :ref:`Document <fdl-document>` well before redistributing any large |
| 182 | number of copies, to give them a chance to provide you with an updated |
| 183 | version of the Document. |
| 184 | |
| 185 | |
| 186 | .. _fdl-section4: |
| 187 | |
| 188 | 4. MODIFICATIONS |
| 189 | ================ |
| 190 | |
| 191 | You may copy and distribute a :ref:`Modified Version <fdl-modified>` |
| 192 | of the :ref:`Document <fdl-document>` under the conditions of sections |
| 193 | :ref:`2 <fdl-section2>` and :ref:`3 <fdl-section3>` above, provided |
| 194 | that you release the Modified Version under precisely this License, with |
| 195 | the Modified Version filling the role of the Document, thus licensing |
| 196 | distribution and modification of the Modified Version to whoever |
| 197 | possesses a copy of it. In addition, you must do these things in the |
| 198 | Modified Version: |
| 199 | |
| 200 | - **A.** |
| 201 | Use in the :ref:`Title Page <fdl-title-page>` (and on the covers, |
| 202 | if any) a title distinct from that of the |
| 203 | :ref:`Document <fdl-document>`, and from those of previous versions |
| 204 | (which should, if there were any, be listed in the History section of |
| 205 | the Document). You may use the same title as a previous version if |
| 206 | the original publisher of that version gives permission. |
| 207 | |
| 208 | - **B.** |
| 209 | List on the :ref:`Title Page <fdl-title-page>`, as authors, one or |
| 210 | more persons or entities responsible for authorship of the |
| 211 | modifications in the :ref:`Modified Version <fdl-modified>`, |
| 212 | together with at least five of the principal authors of the |
| 213 | :ref:`Document <fdl-document>` (all of its principal authors, if it |
| 214 | has less than five). |
| 215 | |
| 216 | - **C.** |
| 217 | State on the :ref:`Title Page <fdl-title-page>` the name of the |
| 218 | publisher of the :ref:`Modified Version <fdl-modified>`, as the |
| 219 | publisher. |
| 220 | |
| 221 | - **D.** |
| 222 | Preserve all the copyright notices of the |
| 223 | :ref:`Document <fdl-document>`. |
| 224 | |
| 225 | - **E.** |
| 226 | Add an appropriate copyright notice for your modifications adjacent |
| 227 | to the other copyright notices. |
| 228 | |
| 229 | - **F.** |
| 230 | Include, immediately after the copyright notices, a license notice |
| 231 | giving the public permission to use the |
| 232 | :ref:`Modified Version <fdl-modified>` under the terms of this |
| 233 | License, in the form shown in the Addendum below. |
| 234 | |
| 235 | - **G.** |
| 236 | Preserve in that license notice the full lists of |
| 237 | :ref:`Invariant Sections <fdl-invariant>` and required |
| 238 | :ref:`Cover Texts <fdl-cover-texts>` given in the |
| 239 | :ref:`Document's <fdl-document>` license notice. |
| 240 | |
| 241 | - **H.** |
| 242 | Include an unaltered copy of this License. |
| 243 | |
| 244 | - **I.** |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 245 | Preserve the section entitled "History", and its title, and add to it |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 246 | an item stating at least the title, year, new authors, and publisher |
| 247 | of the :ref:`Modified Version <fdl-modified>` as given on the |
| 248 | :ref:`Title Page <fdl-title-page>`. If there is no section entitled |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 249 | "History" in the :ref:`Document <fdl-document>`, create one stating |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 250 | the title, year, authors, and publisher of the Document as given on |
| 251 | its Title Page, then add an item describing the Modified Version as |
| 252 | stated in the previous sentence. |
| 253 | |
| 254 | - **J.** |
| 255 | Preserve the network location, if any, given in the |
| 256 | :ref:`Document <fdl-document>` for public access to a |
| 257 | :ref:`Transparent <fdl-transparent>` copy of the Document, and |
| 258 | likewise the network locations given in the Document for previous |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 259 | versions it was based on. These may be placed in the "History" |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 260 | section. You may omit a network location for a work that was |
| 261 | published at least four years before the Document itself, or if the |
| 262 | original publisher of the version it refers to gives permission. |
| 263 | |
| 264 | - **K.** |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 265 | In any section entitled "Acknowledgements" or "Dedications", preserve |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 266 | the section's title, and preserve in the section all the substance |
| 267 | and tone of each of the contributor acknowledgements and/or |
| 268 | dedications given therein. |
| 269 | |
| 270 | - **L.** |
| 271 | Preserve all the :ref:`Invariant Sections <fdl-invariant>` of the |
| 272 | :ref:`Document <fdl-document>`, unaltered in their text and in |
| 273 | their titles. Section numbers or the equivalent are not considered |
| 274 | part of the section titles. |
| 275 | |
| 276 | - **M.** |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 277 | Delete any section entitled "Endorsements". Such a section may not be |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 278 | included in the :ref:`Modified Version <fdl-modified>`. |
| 279 | |
| 280 | - **N.** |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 281 | Do not retitle any existing section as "Endorsements" or to conflict |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 282 | in title with any :ref:`Invariant Section <fdl-invariant>`. |
| 283 | |
| 284 | If the :ref:`Modified Version <fdl-modified>` includes new |
| 285 | front-matter sections or appendices that qualify as |
| 286 | :ref:`Secondary Sections <fdl-secondary>` and contain no material |
| 287 | copied from the Document, you may at your option designate some or all |
| 288 | of these sections as invariant. To do this, add their titles to the list |
| 289 | of :ref:`Invariant Sections <fdl-invariant>` in the Modified Version's |
| 290 | license notice. These titles must be distinct from any other section |
| 291 | titles. |
| 292 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 293 | You may add a section entitled "Endorsements", provided it contains |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 294 | nothing but endorsements of your |
| 295 | :ref:`Modified Version <fdl-modified>` by various parties--for |
| 296 | example, statements of peer review or that the text has been approved by |
| 297 | an organization as the authoritative definition of a standard. |
| 298 | |
| 299 | You may add a passage of up to five words as a |
| 300 | :ref:`Front-Cover Text <fdl-cover-texts>`, and a passage of up to 25 |
| 301 | words as a :ref:`Back-Cover Text <fdl-cover-texts>`, to the end of the |
| 302 | list of :ref:`Cover Texts <fdl-cover-texts>` in the |
| 303 | :ref:`Modified Version <fdl-modified>`. Only one passage of |
| 304 | Front-Cover Text and one of Back-Cover Text may be added by (or through |
| 305 | arrangements made by) any one entity. If the |
| 306 | :ref:`Document <fdl-document>` already includes a cover text for the |
| 307 | same cover, previously added by you or by arrangement made by the same |
| 308 | entity you are acting on behalf of, you may not add another; but you may |
| 309 | replace the old one, on explicit permission from the previous publisher |
| 310 | that added the old one. |
| 311 | |
| 312 | The author(s) and publisher(s) of the :ref:`Document <fdl-document>` |
| 313 | do not by this License give permission to use their names for publicity |
| 314 | for or to assert or imply endorsement of any |
| 315 | :ref:`Modified Version <fdl-modified>`. |
| 316 | |
| 317 | |
| 318 | .. _fdl-section5: |
| 319 | |
| 320 | 5. COMBINING DOCUMENTS |
| 321 | ====================== |
| 322 | |
| 323 | You may combine the :ref:`Document <fdl-document>` with other |
| 324 | documents released under this License, under the terms defined in |
| 325 | :ref:`section 4 <fdl-section4>` above for modified versions, provided |
| 326 | that you include in the combination all of the |
| 327 | :ref:`Invariant Sections <fdl-invariant>` of all of the original |
| 328 | documents, unmodified, and list them all as Invariant Sections of your |
| 329 | combined work in its license notice. |
| 330 | |
| 331 | The combined work need only contain one copy of this License, and |
| 332 | multiple identical :ref:`Invariant Sections <fdl-invariant>` may be |
| 333 | replaced with a single copy. If there are multiple Invariant Sections |
| 334 | with the same name but different contents, make the title of each such |
| 335 | section unique by adding at the end of it, in parentheses, the name of |
| 336 | the original author or publisher of that section if known, or else a |
| 337 | unique number. Make the same adjustment to the section titles in the |
| 338 | list of Invariant Sections in the license notice of the combined work. |
| 339 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 340 | In the combination, you must combine any sections entitled "History" in |
| 341 | the various original documents, forming one section entitled "History"; |
| 342 | likewise combine any sections entitled "Acknowledgements", and any |
| 343 | sections entitled "Dedications". You must delete all sections entitled |
| 344 | "Endorsements." |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 345 | |
| 346 | |
| 347 | .. _fdl-section6: |
| 348 | |
| 349 | 6. COLLECTIONS OF DOCUMENTS |
| 350 | =========================== |
| 351 | |
| 352 | You may make a collection consisting of the |
| 353 | :ref:`Document <fdl-document>` and other documents released under this |
| 354 | License, and replace the individual copies of this License in the |
| 355 | various documents with a single copy that is included in the collection, |
| 356 | provided that you follow the rules of this License for verbatim copying |
| 357 | of each of the documents in all other respects. |
| 358 | |
| 359 | You may extract a single document from such a collection, and distribute |
| 360 | it individually under this License, provided you insert a copy of this |
| 361 | License into the extracted document, and follow this License in all |
| 362 | other respects regarding verbatim copying of that document. |
| 363 | |
| 364 | |
| 365 | .. _fdl-section7: |
| 366 | |
| 367 | 7. AGGREGATION WITH INDEPENDENT WORKS |
| 368 | ===================================== |
| 369 | |
| 370 | A compilation of the :ref:`Document <fdl-document>` or its derivatives |
| 371 | with other separate and independent documents or works, in or on a |
| 372 | volume of a storage or distribution medium, does not as a whole count as |
| 373 | a :ref:`Modified Version <fdl-modified>` of the Document, provided no |
| 374 | compilation copyright is claimed for the compilation. Such a compilation |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 375 | is called an "aggregate", and this License does not apply to the other |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 376 | self-contained works thus compiled with the Document , on account of |
| 377 | their being thus compiled, if they are not themselves derivative works |
| 378 | of the Document. If the :ref:`Cover Text <fdl-cover-texts>` |
| 379 | requirement of :ref:`section 3 <fdl-section3>` is applicable to these |
| 380 | copies of the Document, then if the Document is less than one quarter of |
| 381 | the entire aggregate, the Document's Cover Texts may be placed on covers |
| 382 | that surround only the Document within the aggregate. Otherwise they |
| 383 | must appear on covers around the whole aggregate. |
| 384 | |
| 385 | |
| 386 | .. _fdl-section8: |
| 387 | |
| 388 | 8. TRANSLATION |
| 389 | ============== |
| 390 | |
| 391 | Translation is considered a kind of modification, so you may distribute |
| 392 | translations of the :ref:`Document <fdl-document>` under the terms of |
| 393 | :ref:`section 4 <fdl-section4>`. Replacing |
| 394 | :ref:`Invariant Sections <fdl-invariant>` with translations requires |
| 395 | special permission from their copyright holders, but you may include |
| 396 | translations of some or all Invariant Sections in addition to the |
| 397 | original versions of these Invariant Sections. You may include a |
| 398 | translation of this License provided that you also include the original |
| 399 | English version of this License. In case of a disagreement between the |
| 400 | translation and the original English version of this License, the |
| 401 | original English version will prevail. |
| 402 | |
| 403 | |
| 404 | .. _fdl-section9: |
| 405 | |
| 406 | 9. TERMINATION |
| 407 | ============== |
| 408 | |
| 409 | You may not copy, modify, sublicense, or distribute the |
| 410 | :ref:`Document <fdl-document>` except as expressly provided for under |
| 411 | this License. Any other attempt to copy, modify, sublicense or |
| 412 | distribute the Document is void, and will automatically terminate your |
| 413 | rights under this License. However, parties who have received copies, or |
| 414 | rights, from you under this License will not have their licenses |
| 415 | terminated so long as such parties remain in full compliance. |
| 416 | |
| 417 | |
| 418 | .. _fdl-section10: |
| 419 | |
| 420 | 10. FUTURE REVISIONS OF THIS LICENSE |
| 421 | ==================================== |
| 422 | |
| 423 | The `Free Software Foundation <http://www.gnu.org/fsf/fsf.html>`__ |
| 424 | may publish new, revised versions of the GNU Free Documentation License |
| 425 | from time to time. Such new versions will be similar in spirit to the |
| 426 | present version, but may differ in detail to address new problems or |
| 427 | concerns. See |
| 428 | `http://www.gnu.org/copyleft/ <http://www.gnu.org/copyleft>`__. |
| 429 | |
| 430 | Each version of the License is given a distinguishing version number. If |
| 431 | the :ref:`Document <fdl-document>` specifies that a particular |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 432 | numbered version of this License "or any later version" applies to it, |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 433 | you have the option of following the terms and conditions either of that |
| 434 | specified version or of any later version that has been published (not |
| 435 | as a draft) by the Free Software Foundation. If the Document does not |
| 436 | specify a version number of this License, you may choose any version |
| 437 | ever published (not as a draft) by the Free Software Foundation. |
| 438 | |
| 439 | |
| 440 | .. _fdl-using: |
| 441 | |
| 442 | Addendum |
| 443 | ======== |
| 444 | |
| 445 | To use this License in a document you have written, include a copy of |
| 446 | the License in the document and put the following copyright and license |
| 447 | notices just after the title page: |
| 448 | |
| 449 | Copyright © YEAR YOUR NAME. |
| 450 | |
| 451 | Permission is granted to copy, distribute and/or modify this |
| 452 | document under the terms of the GNU Free Documentation License, |
| 453 | Version 1.1 or any later version published by the Free Software |
| 454 | Foundation; with the :ref:`Invariant Sections <fdl-invariant>` |
| 455 | being LIST THEIR TITLES, with the |
| 456 | :ref:`Front-Cover Texts <fdl-cover-texts>` being LIST, and with |
| 457 | the :ref:`Back-Cover Texts <fdl-cover-texts>` being LIST. A copy |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 458 | of the license is included in the section entitled "GNU Free |
| 459 | Documentation License". |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 460 | |
Mauro Carvalho Chehab | d4a84f8 | 2021-06-02 15:12:17 +0200 | [diff] [blame] | 461 | If you have no :ref:`Invariant Sections <fdl-invariant>`, write "with |
| 462 | no Invariant Sections" instead of saying which ones are invariant. If |
| 463 | you have no :ref:`Front-Cover Texts <fdl-cover-texts>`, write "no |
| 464 | Front-Cover Texts" instead of "Front-Cover Texts being LIST"; likewise |
Mauro Carvalho Chehab | 54f38fc | 2020-03-04 10:21:39 +0100 | [diff] [blame] | 465 | for :ref:`Back-Cover Texts <fdl-cover-texts>`. |
| 466 | |
| 467 | If your document contains nontrivial examples of program code, we |
| 468 | recommend releasing these examples in parallel under your choice of free |
| 469 | software license, such as the |
| 470 | `GNU General Public License <http://www.gnu.org/copyleft/gpl.html>`__, |
| 471 | to permit their use in free software. |