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Define constants only if Sodium is available
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1 GNU Free Documentation License
2
3 Version 1.3, 3 November 2008 Copyright (C) 2000, 2001, 2002, 2007, 2008 Free
4 Software Foundation, Inc. <http://fsf.org/>
5
6 Everyone is permitted to copy and distribute verbatim copies of this license
7 document, but changing it is not allowed.
8
9 0. PREAMBLE
10
11 The purpose of this License is to make a manual, textbook, or other functional
12 and useful document "free" in the sense of freedom: to assure everyone the
13 effective freedom to copy and redistribute it, with or without modifying it,
14 either commercially or noncommercially. Secondarily, this License preserves
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16 being considered responsible for modifications made by others.
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18 This License is a kind of "copyleft", which means that derivative works of
19 the document must themselves be free in the same sense. It complements the
20 GNU General Public License, which is a copyleft license designed for free
21 software.
22
23 We have designed this License in order to use it for manuals for free software,
24 because free software needs free documentation: a free program should come
25 with manuals providing the same freedoms that the software does. But this
26 License is not limited to software manuals; it can be used for any textual
27 work, regardless of subject matter or whether it is published as a printed
28 book. We recommend this License principally for works whose purpose is instruction
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30
31 1. APPLICABILITY AND DEFINITIONS
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33 This License applies to any manual or other work, in any medium, that contains
34 a notice placed by the copyright holder saying it can be distributed under
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37 herein. The "Document", below, refers to any such manual or work. Any member
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39 if you copy, modify or distribute the work in a way requiring permission under
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42 A "Modified Version" of the Document means any work containing the Document
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55 The "Invariant Sections" are certain Secondary Sections whose titles are designated,
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89 The "Title Page" means, for a printed book, the title page itself, plus such
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107 The Document may include Warranty Disclaimers next to the notice which states
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113 2. VERBATIM COPYING
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115 You may copy and distribute the Document in any medium, either commercially
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129 If you publish printed copies (or copies in media that commonly have printed
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141 If the required texts for either cover are too voluminous to fit legibly,
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145 If you publish or distribute Opaque copies of the Document numbering more
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161 4. MODIFICATIONS
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163 You may copy and distribute a Modified Version of the Document under the conditions
164 of sections 2 and 3 above, provided that you release the Modified Version
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170 A. Use in the Title Page (and on the covers, if any) a title distinct from
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176 B. List on the Title Page, as authors, one or more persons or entities responsible
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178 at least five of the principal authors of the Document (all of its principal
179 authors, if it has fewer than five), unless they release you from this requirement.
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181 C. State on the Title page the name of the publisher of the Modified Version,
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184 D. Preserve all the copyright notices of the Document.
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186 E. Add an appropriate copyright notice for your modifications adjacent to
187 the other copyright notices.
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189 F. Include, immediately after the copyright notices, a license notice giving
190 the public permission to use the Modified Version under the terms of this
191 License, in the form shown in the Addendum below.
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193 G. Preserve in that license notice the full lists of Invariant Sections and
194 required Cover Texts given in the Document's license notice. H. Include an
195 unaltered copy of this License.
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197 I. Preserve the section Entitled "History", Preserve its Title, and add to
198 it an item stating at least the title, year, new authors, and publisher of
199 the Modified Version as given on the Title Page. If there is no section Entitled
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203
204 J. Preserve the network location, if any, given in the Document for public
205 access to a Transparent copy of the Document, and likewise the network locations
206 given in the Document for previous versions it was based on. These may be
207 placed in the "History" section. You may omit a network location for a work
208 that was published at least four years before the Document itself, or if the
209 original publisher of the version it refers to gives permission.
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211 K. For any section Entitled "Acknowledgements" or "Dedications", Preserve
212 the Title of the section, and preserve in the section all the substance and
213 tone of each of the contributor acknowledgements and/or dedications given
214 therein.
215
216 L. Preserve all the Invariant Sections of the Document, unaltered in their
217 text and in their titles. Section numbers or the equivalent are not considered
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220 M. Delete any section Entitled "Endorsements". Such a section may not be included
221 in the Modified Version.
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223 N. Do not retitle any existing section to be Entitled "Endorsements" or to
224 conflict in title with any Invariant Section.
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226 O. Preserve any Warranty Disclaimers.
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228 If the Modified Version includes new front-matter sections or appendices that
229 qualify as Secondary Sections and contain no material copied from the Document,
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231 To do this, add their titles to the list of Invariant Sections in the Modified
232 Version's license notice. These titles must be distinct from any other section
233 titles.
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235 You may add a section Entitled "Endorsements", provided it contains nothing
236 but endorsements of your Modified Version by various parties--for example,
237 statements of peer review or that the text has been approved by an organization
238 as the authoritative definition of a standard.
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240 You may add a passage of up to five words as a Front-Cover Text, and a passage
241 of up to 25 words as a Back-Cover Text, to the end of the list of Cover Texts
242 in the Modified Version. Only one passage of Front-Cover Text and one of Back-Cover
243 Text may be added by (or through arrangements made by) any one entity. If
244 the Document already includes a cover text for the same cover, previously
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247 permission from the previous publisher that added the old one.
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249 The author(s) and publisher(s) of the Document do not by this License give
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253 5. COMBINING DOCUMENTS
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255 You may combine the Document with other documents released under this License,
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260 Warranty Disclaimers.
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262 The combined work need only contain one copy of this License, and multiple
263 identical Invariant Sections may be replaced with a single copy. If there
264 are multiple Invariant Sections with the same name but different contents,
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271 In the combination, you must combine any sections Entitled "History" in the
272 various original documents, forming one section Entitled "History"; likewise
273 combine any sections Entitled "Acknowledgements", and any sections Entitled
274 "Dedications". You must delete all sections Entitled "Endorsements".
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276 6. COLLECTIONS OF DOCUMENTS
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278 You may make a collection consisting of the Document and other documents released
279 under this License, and replace the individual copies of this License in the
280 various documents with a single copy that is included in the collection, provided
281 that you follow the rules of this License for verbatim copying of each of
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284 You may extract a single document from such a collection, and distribute it
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286 into the extracted document, and follow this License in all other respects
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289 7. AGGREGATION WITH INDEPENDENT WORKS
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291 A compilation of the Document or its derivatives with other separate and independent
292 documents or works, in or on a volume of a storage or distribution medium,
293 is called an "aggregate" if the copyright resulting from the compilation is
294 not used to limit the legal rights of the compilation's users beyond what
295 the individual works permit. When the Document is included in an aggregate,
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297 not themselves derivative works of the Document.
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299 If the Cover Text requirement of section 3 is applicable to these copies of
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304 the whole aggregate.
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306 8. TRANSLATION
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308 Translation is considered a kind of modification, so you may distribute translations
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310 with translations requires special permission from their copyright holders,
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314 Disclaimers, provided that you also include the original English version of
315 this License and the original versions of those notices and disclaimers. In
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317 this License or a notice or disclaimer, the original version will prevail.
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319 If a section in the Document is Entitled "Acknowledgements", "Dedications",
320 or "History", the requirement (section 4) to Preserve its Title (section 1)
321 will typically require changing the actual title.
322
323 9. TERMINATION
324
325 You may not copy, modify, sublicense, or distribute the Document except as
326 expressly provided under this License. Any attempt otherwise to copy, modify,
327 sublicense, or distribute it is void, and will automatically terminate your
328 rights under this License.
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330 However, if you cease all violation of this License, then your license from
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347
348 10. FUTURE REVISIONS OF THIS LICENSE
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350 The Free Software Foundation may publish new, revised versions of the GNU
351 Free Documentation License from time to time. Such new versions will be similar
352 in spirit to the present version, but may differ in detail to address new
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355 Each version of the License is given a distinguishing version number. If the
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360 Document does not specify a version number of this License, you may choose
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362 If the Document specifies that a proxy can decide which future versions of
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364 version permanently authorizes you to choose that version for the Document.
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366 11. RELICENSING
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368 "Massive Multiauthor Collaboration Site" (or "MMC Site") means any World Wide
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380 "Incorporate" means to publish or republish a Document, in whole or in part,
381 as part of another Document.
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386 MMC, (1) had no cover texts or invariant sections, and (2) were thus incorporated
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388
389 The operator of an MMC Site may republish an MMC contained in the site under
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394 To use this License in a document you have written, include a copy of the
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397
398 Copyright (c) YEAR YOUR NAME . Permission is granted to copy, distribute and/or
399 modify this document under the terms of the GNU Free Documentation License,
400 Version 1.3 or any later version published by the Free Software Foundation;
401 with no Invariant Sections , no Front-Cover Texts , and no Back-Cover Texts
402 . A copy of the license is included in the section entitled "GNU Free Documentation
403 License".
404
405 If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, replace
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414 If your document contains nontrivial examples of program code, we recommend
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