1 2@c $NetBSD: fdl.texi,v 1.1.1.1 2016/01/13 03:15:29 christos Exp $ 3@node GNU Free Documentation License 4@appendixsec GNU Free Documentation License 5 6@cindex FDL, GNU Free Documentation License 7@center Version 1.1, March 2000 8 9@display 10Copyright @copyright{} 2000 Free Software Foundation, Inc. 1159 Temple Place, Suite 330, Boston, MA 02111-1307, USA 12 13Everyone is permitted to copy and distribute verbatim copies 14of this license document, but changing it is not allowed. 15@end display 16 17@enumerate 0 18@item 19PREAMBLE 20 21The purpose of this License is to make a manual, textbook, or other 22written document @dfn{free} in the sense of freedom: to assure everyone 23the effective freedom to copy and redistribute it, with or without 24modifying it, either commercially or noncommercially. Secondarily, 25this License preserves for the author and publisher a way to get 26credit for their work, while not being considered responsible for 27modifications made by others. 28 29This License is a kind of ``copyleft'', which means that derivative 30works of the document must themselves be free in the same sense. It 31complements the GNU General Public License, which is a copyleft 32license designed for free software. 33 34We have designed this License in order to use it for manuals for free 35software, because free software needs free documentation: a free 36program should come with manuals providing the same freedoms that the 37software does. But this License is not limited to software manuals; 38it can be used for any textual work, regardless of subject matter or 39whether it is published as a printed book. We recommend this License 40principally for works whose purpose is instruction or reference. 41 42@item 43APPLICABILITY AND DEFINITIONS 44 45This License applies to any manual or other work that contains a 46notice placed by the copyright holder saying it can be distributed 47under the terms of this License. The ``Document'', below, refers to any 48such manual or work. Any member of the public is a licensee, and is 49addressed as ``you''. 50 51A ``Modified Version'' of the Document means any work containing the 52Document or a portion of it, either copied verbatim, or with 53modifications and/or translated into another language. 54 55A ``Secondary Section'' is a named appendix or a front-matter section of 56the Document that deals exclusively with the relationship of the 57publishers or authors of the Document to the Document's overall subject 58(or to related matters) and contains nothing that could fall directly 59within that overall subject. (For example, if the Document is in part a 60textbook of mathematics, a Secondary Section may not explain any 61mathematics.) The relationship could be a matter of historical 62connection with the subject or with related matters, or of legal, 63commercial, philosophical, ethical or political position regarding 64them. 65 66The ``Invariant Sections'' are certain Secondary Sections whose titles 67are designated, as being those of Invariant Sections, in the notice 68that says that the Document is released under this License. 69 70The ``Cover Texts'' are certain short passages of text that are listed, 71as Front-Cover Texts or Back-Cover Texts, in the notice that says that 72the Document is released under this License. 73 74A ``Transparent'' copy of the Document means a machine-readable copy, 75represented in a format whose specification is available to the 76general public, whose contents can be viewed and edited directly and 77straightforwardly with generic text editors or (for images composed of 78pixels) generic paint programs or (for drawings) some widely available 79drawing editor, and that is suitable for input to text formatters or 80for automatic translation to a variety of formats suitable for input 81to text formatters. A copy made in an otherwise Transparent file 82format whose markup has been designed to thwart or discourage 83subsequent modification by readers is not Transparent. A copy that is 84not ``Transparent'' is called ``Opaque''. 85 86Examples of suitable formats for Transparent copies include plain 87@sc{ascii} without markup, Texinfo input format, La@TeX{} input format, 88@acronym{SGML} or @acronym{XML} using a publicly available 89@acronym{DTD}, and standard-conforming simple @acronym{HTML} designed 90for human modification. Opaque formats include PostScript, 91@acronym{PDF}, proprietary formats that can be read and edited only by 92proprietary word processors, @acronym{SGML} or @acronym{XML} for which 93the @acronym{DTD} and/or processing tools are not generally available, 94and the machine-generated @acronym{HTML} produced by some word 95processors for output purposes only. 96 97The ``Title Page'' means, for a printed book, the title page itself, 98plus such following pages as are needed to hold, legibly, the material 99this License requires to appear in the title page. For works in 100formats which do not have any title page as such, ``Title Page'' means 101the text near the most prominent appearance of the work's title, 102preceding the beginning of the body of the text. 103 104@item 105VERBATIM COPYING 106 107You may copy and distribute the Document in any medium, either 108commercially or noncommercially, provided that this License, the 109copyright notices, and the license notice saying this License applies 110to the Document are reproduced in all copies, and that you add no other 111conditions whatsoever to those of this License. You may not use 112technical measures to obstruct or control the reading or further 113copying of the copies you make or distribute. However, you may accept 114compensation in exchange for copies. If you distribute a large enough 115number of copies you must also follow the conditions in section 3. 116 117You may also lend copies, under the same conditions stated above, and 118you may publicly display copies. 119 120@item 121COPYING IN QUANTITY 122 123If you publish printed copies of the Document numbering more than 100, 124and the Document's license notice requires Cover Texts, you must enclose 125the copies in covers that carry, clearly and legibly, all these Cover 126Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on 127the back cover. Both covers must also clearly and legibly identify 128you as the publisher of these copies. The front cover must present 129the full title with all words of the title equally prominent and 130visible. You may add other material on the covers in addition. 131Copying with changes limited to the covers, as long as they preserve 132the title of the Document and satisfy these conditions, can be treated 133as verbatim copying in other respects. 134 135If the required texts for either cover are too voluminous to fit 136legibly, you should put the first ones listed (as many as fit 137reasonably) on the actual cover, and continue the rest onto adjacent 138pages. 139 140If you publish or distribute Opaque copies of the Document numbering 141more than 100, you must either include a machine-readable Transparent 142copy along with each Opaque copy, or state in or with each Opaque copy 143a publicly-accessible computer-network location containing a complete 144Transparent copy of the Document, free of added material, which the 145general network-using public has access to download anonymously at no 146charge using public-standard network protocols. If you use the latter 147option, you must take reasonably prudent steps, when you begin 148distribution of Opaque copies in quantity, to ensure that this 149Transparent copy will remain thus accessible at the stated location 150until at least one year after the last time you distribute an Opaque 151copy (directly or through your agents or retailers) of that edition to 152the public. 153 154It is requested, but not required, that you contact the authors of the 155Document well before redistributing any large number of copies, to give 156them a chance to provide you with an updated version of the Document. 157 158@item 159MODIFICATIONS 160 161You may copy and distribute a Modified Version of the Document under 162the conditions of sections 2 and 3 above, provided that you release 163the Modified Version under precisely this License, with the Modified 164Version filling the role of the Document, thus licensing distribution 165and modification of the Modified Version to whoever possesses a copy 166of it. In addition, you must do these things in the Modified Version: 167 168@enumerate A 169@item 170Use in the Title Page (and on the covers, if any) a title distinct 171from that of the Document, and from those of previous versions 172(which should, if there were any, be listed in the History section 173of the Document). You may use the same title as a previous version 174if the original publisher of that version gives permission. 175 176@item 177List on the Title Page, as authors, one or more persons or entities 178responsible for authorship of the modifications in the Modified 179Version, together with at least five of the principal authors of the 180Document (all of its principal authors, if it has less than five). 181 182@item 183State on the Title page the name of the publisher of the 184Modified Version, as the publisher. 185 186@item 187Preserve all the copyright notices of the Document. 188 189@item 190Add an appropriate copyright notice for your modifications 191adjacent to the other copyright notices. 192 193@item 194Include, immediately after the copyright notices, a license notice 195giving the public permission to use the Modified Version under the 196terms of this License, in the form shown in the Addendum below. 197 198@item 199Preserve in that license notice the full lists of Invariant Sections 200and required Cover Texts given in the Document's license notice. 201 202@item 203Include an unaltered copy of this License. 204 205@item 206Preserve the section entitled ``History'', and its title, and add to 207it an item stating at least the title, year, new authors, and 208publisher of the Modified Version as given on the Title Page. If 209there is no section entitled ``History'' in the Document, create one 210stating the title, year, authors, and publisher of the Document as 211given on its Title Page, then add an item describing the Modified 212Version as stated in the previous sentence. 213 214@item 215Preserve the network location, if any, given in the Document for 216public access to a Transparent copy of the Document, and likewise 217the network locations given in the Document for previous versions 218it was based on. These may be placed in the ``History'' section. 219You may omit a network location for a work that was published at 220least four years before the Document itself, or if the original 221publisher of the version it refers to gives permission. 222 223@item 224In any section entitled ``Acknowledgments'' or ``Dedications'', 225preserve the section's title, and preserve in the section all the 226substance and tone of each of the contributor acknowledgments 227and/or dedications given therein. 228 229@item 230Preserve all the Invariant Sections of the Document, 231unaltered in their text and in their titles. Section numbers 232or the equivalent are not considered part of the section titles. 233 234@item 235Delete any section entitled ``Endorsements''. Such a section 236may not be included in the Modified Version. 237 238@item 239Do not retitle any existing section as ``Endorsements'' 240or to conflict in title with any Invariant Section. 241@end enumerate 242 243If the Modified Version includes new front-matter sections or 244appendices that qualify as Secondary Sections and contain no material 245copied from the Document, you may at your option designate some or all 246of these sections as invariant. To do this, add their titles to the 247list of Invariant Sections in the Modified Version's license notice. 248These titles must be distinct from any other section titles. 249 250You may add a section entitled ``Endorsements'', provided it contains 251nothing but endorsements of your Modified Version by various 252parties---for example, statements of peer review or that the text has 253been approved by an organization as the authoritative definition of a 254standard. 255 256You may add a passage of up to five words as a Front-Cover Text, and a 257passage of up to 25 words as a Back-Cover Text, to the end of the list 258of Cover Texts in the Modified Version. Only one passage of 259Front-Cover Text and one of Back-Cover Text may be added by (or 260through arrangements made by) any one entity. If the Document already 261includes a cover text for the same cover, previously added by you or 262by arrangement made by the same entity you are acting on behalf of, 263you may not add another; but you may replace the old one, on explicit 264permission from the previous publisher that added the old one. 265 266The author(s) and publisher(s) of the Document do not by this License 267give permission to use their names for publicity for or to assert or 268imply endorsement of any Modified Version. 269 270@item 271COMBINING DOCUMENTS 272 273You may combine the Document with other documents released under this 274License, under the terms defined in section 4 above for modified 275versions, provided that you include in the combination all of the 276Invariant Sections of all of the original documents, unmodified, and 277list them all as Invariant Sections of your combined work in its 278license notice. 279 280The combined work need only contain one copy of this License, and 281multiple identical Invariant Sections may be replaced with a single 282copy. If there are multiple Invariant Sections with the same name but 283different contents, make the title of each such section unique by 284adding at the end of it, in parentheses, the name of the original 285author or publisher of that section if known, or else a unique number. 286Make the same adjustment to the section titles in the list of 287Invariant Sections in the license notice of the combined work. 288 289In the combination, you must combine any sections entitled ``History'' 290in the various original documents, forming one section entitled 291``History''; likewise combine any sections entitled ``Acknowledgments'', 292and any sections entitled ``Dedications''. You must delete all sections 293entitled ``Endorsements.'' 294 295@item 296COLLECTIONS OF DOCUMENTS 297 298You may make a collection consisting of the Document and other documents 299released under this License, and replace the individual copies of this 300License in the various documents with a single copy that is included in 301the collection, provided that you follow the rules of this License for 302verbatim copying of each of the documents in all other respects. 303 304You may extract a single document from such a collection, and distribute 305it individually under this License, provided you insert a copy of this 306License into the extracted document, and follow this License in all 307other respects regarding verbatim copying of that document. 308 309@item 310AGGREGATION WITH INDEPENDENT WORKS 311 312A compilation of the Document or its derivatives with other separate 313and independent documents or works, in or on a volume of a storage or 314distribution medium, does not as a whole count as a Modified Version 315of the Document, provided no compilation copyright is claimed for the 316compilation. Such a compilation is called an ``aggregate'', and this 317License does not apply to the other self-contained works thus compiled 318with the Document, on account of their being thus compiled, if they 319are not themselves derivative works of the Document. 320 321If the Cover Text requirement of section 3 is applicable to these 322copies of the Document, then if the Document is less than one quarter 323of the entire aggregate, the Document's Cover Texts may be placed on 324covers that surround only the Document within the aggregate. 325Otherwise they must appear on covers around the whole aggregate. 326 327@item 328TRANSLATION 329 330Translation is considered a kind of modification, so you may 331distribute translations of the Document under the terms of section 4. 332Replacing Invariant Sections with translations requires special 333permission from their copyright holders, but you may include 334translations of some or all Invariant Sections in addition to the 335original versions of these Invariant Sections. You may include a 336translation of this License provided that you also include the 337original English version of this License. In case of a disagreement 338between the translation and the original English version of this 339License, the original English version will prevail. 340 341@item 342TERMINATION 343 344You may not copy, modify, sublicense, or distribute the Document except 345as expressly provided for under this License. Any other attempt to 346copy, modify, sublicense or distribute the Document is void, and will 347automatically terminate your rights under this License. However, 348parties who have received copies, or rights, from you under this 349License will not have their licenses terminated so long as such 350parties remain in full compliance. 351 352@item 353FUTURE REVISIONS OF THIS LICENSE 354 355The Free Software Foundation may publish new, revised versions 356of the GNU Free Documentation License from time to time. Such new 357versions will be similar in spirit to the present version, but may 358differ in detail to address new problems or concerns. See 359@uref{http://www.gnu.org/copyleft/}. 360 361Each version of the License is given a distinguishing version number. 362If the Document specifies that a particular numbered version of this 363License ``or any later version'' applies to it, you have the option of 364following the terms and conditions either of that specified version or 365of any later version that has been published (not as a draft) by the 366Free Software Foundation. If the Document does not specify a version 367number of this License, you may choose any version ever published (not 368as a draft) by the Free Software Foundation. 369@end enumerate 370 371@page 372@appendixsubsec ADDENDUM: How to use this License for your documents 373 374To use this License in a document you have written, include a copy of 375the License in the document and put the following copyright and 376license notices just after the title page: 377 378@smallexample 379@group 380 Copyright (C) @var{year} @var{your name}. 381 Permission is granted to copy, distribute and/or modify this document 382 under the terms of the GNU Free Documentation License, Version 1.1 383 or any later version published by the Free Software Foundation; 384 with the Invariant Sections being @var{list their titles}, with the 385 Front-Cover Texts being @var{list}, and with the Back-Cover Texts being @var{list}. 386 A copy of the license is included in the section entitled ``GNU 387 Free Documentation License''. 388@end group 389@end smallexample 390 391If you have no Invariant Sections, write ``with no Invariant Sections'' 392instead of saying which ones are invariant. If you have no 393Front-Cover Texts, write ``no Front-Cover Texts'' instead of 394``Front-Cover Texts being @var{list}''; likewise for Back-Cover Texts. 395 396If your document contains nontrivial examples of program code, we 397recommend releasing these examples in parallel under your choice of 398free software license, such as the GNU General Public License, 399to permit their use in free software. 400 401@c Local Variables: 402@c ispell-local-pdict: "ispell-dict" 403@c End: 404 405