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|
| +@c The GNU Free Documentation License.
|
| +@center Version 1.2, November 2002
|
| +
|
| +@c This file is intended to be included within another document,
|
| +@c hence no sectioning command or @node.
|
| +
|
| +@display
|
| +Copyright @copyright{} 2000,2001,2002 Free Software Foundation, Inc.
|
| +51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
| +
|
| +Everyone is permitted to copy and distribute verbatim copies
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| +of this license document, but changing it is not allowed.
|
| +@end display
|
| +
|
| +@enumerate 0
|
| +@item
|
| +PREAMBLE
|
| +
|
| +The purpose of this License is to make a manual, textbook, or other
|
| +functional and useful document @dfn{free} in the sense of freedom: to
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| +assure everyone the effective freedom to copy and redistribute it,
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| +with or without modifying it, either commercially or noncommercially.
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| +Secondarily, this License preserves for the author and publisher a way
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| +to get credit for their work, while not being considered responsible
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| +for modifications made by others.
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| +
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| +This License is a kind of ``copyleft'', which means that derivative
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| +works of the document must themselves be free in the same sense. It
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| +complements the GNU General Public License, which is a copyleft
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| +license designed for free software.
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| +
|
| +We have designed this License in order to use it for manuals for free
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| +software, because free software needs free documentation: a free
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| +program should come with manuals providing the same freedoms that the
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| +software does. But this License is not limited to software manuals;
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| +it can be used for any textual work, regardless of subject matter or
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| +whether it is published as a printed book. We recommend this License
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| +principally for works whose purpose is instruction or reference.
|
| +
|
| +@item
|
| +APPLICABILITY AND DEFINITIONS
|
| +
|
| +This License applies to any manual or other work, in any medium, that
|
| +contains a notice placed by the copyright holder saying it can be
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| +distributed under the terms of this License. Such a notice grants a
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| +world-wide, royalty-free license, unlimited in duration, to use that
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| +work under the conditions stated herein. The ``Document'', below,
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| +refers to any such manual or work. Any member of the public is a
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| +licensee, and is addressed as ``you''. You accept the license if you
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| +copy, modify or distribute the work in a way requiring permission
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| +under copyright law.
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| +
|
| +A ``Modified Version'' of the Document means any work containing the
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| +Document or a portion of it, either copied verbatim, or with
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| +modifications and/or translated into another language.
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| +
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| +A ``Secondary Section'' is a named appendix or a front-matter section
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| +of the Document that deals exclusively with the relationship of the
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| +publishers or authors of the Document to the Document's overall
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| +subject (or to related matters) and contains nothing that could fall
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| +directly within that overall subject. (Thus, if the Document is in
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| +part a textbook of mathematics, a Secondary Section may not explain
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| +any mathematics.) The relationship could be a matter of historical
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| +connection with the subject or with related matters, or of legal,
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| +commercial, philosophical, ethical or political position regarding
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| +them.
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| +
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| +The ``Invariant Sections'' are certain Secondary Sections whose titles
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| +are designated, as being those of Invariant Sections, in the notice
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| +that says that the Document is released under this License. If a
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| +section does not fit the above definition of Secondary then it is not
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| +allowed to be designated as Invariant. The Document may contain zero
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| +Invariant Sections. If the Document does not identify any Invariant
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| +Sections then there are none.
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| +
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| +The ``Cover Texts'' are certain short passages of text that are listed,
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| +as Front-Cover Texts or Back-Cover Texts, in the notice that says that
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| +the Document is released under this License. A Front-Cover Text may
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| +be at most 5 words, and a Back-Cover Text may be at most 25 words.
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| +
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| +A ``Transparent'' copy of the Document means a machine-readable copy,
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| +represented in a format whose specification is available to the
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| +general public, that is suitable for revising the document
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| +straightforwardly with generic text editors or (for images composed of
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| +pixels) generic paint programs or (for drawings) some widely available
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| +drawing editor, and that is suitable for input to text formatters or
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| +for automatic translation to a variety of formats suitable for input
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| +to text formatters. A copy made in an otherwise Transparent file
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| +format whose markup, or absence of markup, has been arranged to thwart
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| +or discourage subsequent modification by readers is not Transparent.
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| +An image format is not Transparent if used for any substantial amount
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| +of text. A copy that is not ``Transparent'' is called ``Opaque''.
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| +
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| +Examples of suitable formats for Transparent copies include plain
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| +@sc{ascii} without markup, Texinfo input format, La@TeX{} input
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| +format, @acronym{SGML} or @acronym{XML} using a publicly available
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| +@acronym{DTD}, and standard-conforming simple @acronym{HTML},
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| +PostScript or @acronym{PDF} designed for human modification. Examples
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| +of transparent image formats include @acronym{PNG}, @acronym{XCF} and
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| +@acronym{JPG}. Opaque formats include proprietary formats that can be
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| +read and edited only by proprietary word processors, @acronym{SGML} or
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| +@acronym{XML} for which the @acronym{DTD} and/or processing tools are
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| +not generally available, and the machine-generated @acronym{HTML},
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| +PostScript or @acronym{PDF} produced by some word processors for
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| +output purposes only.
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| +
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| +The ``Title Page'' means, for a printed book, the title page itself,
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| +plus such following pages as are needed to hold, legibly, the material
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| +this License requires to appear in the title page. For works in
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| +formats which do not have any title page as such, ``Title Page'' means
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| +the text near the most prominent appearance of the work's title,
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| +preceding the beginning of the body of the text.
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| +A section ``Entitled XYZ'' means a named subunit of the Document whose
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| +title either is precisely XYZ or contains XYZ in parentheses following
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| +text that translates XYZ in another language. (Here XYZ stands for a
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| +specific section name mentioned below, such as ``Acknowledgements'',
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| +``Dedications'', ``Endorsements'', or ``History''.) To ``Preserve the Title''
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| +of such a section when you modify the Document means that it remains a
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| +section ``Entitled XYZ'' according to this definition.
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| +
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| +The Document may include Warranty Disclaimers next to the notice which
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| +states that this License applies to the Document. These Warranty
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| +Disclaimers are considered to be included by reference in this
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| +License, but only as regards disclaiming warranties: any other
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| +implication that these Warranty Disclaimers may have is void and has
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| +no effect on the meaning of this License.
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| +
|
| +@item
|
| +VERBATIM COPYING
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| +
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| +You may copy and distribute the Document in any medium, either
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| +commercially or noncommercially, provided that this License, the
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| +copyright notices, and the license notice saying this License applies
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| +to the Document are reproduced in all copies, and that you add no other
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| +conditions whatsoever to those of this License. You may not use
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| +technical measures to obstruct or control the reading or further
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| +copying of the copies you make or distribute. However, you may accept
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| +compensation in exchange for copies. If you distribute a large enough
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| +number of copies you must also follow the conditions in section 3.
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| +
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| +You may also lend copies, under the same conditions stated above, and
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| +you may publicly display copies.
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| +
|
| +@item
|
| +COPYING IN QUANTITY
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| +
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| +If you publish printed copies (or copies in media that commonly have
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| +printed covers) of the Document, numbering more than 100, and the
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| +Document's license notice requires Cover Texts, you must enclose the
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| +copies in covers that carry, clearly and legibly, all these Cover
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| +Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
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| +the back cover. Both covers must also clearly and legibly identify
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| +you as the publisher of these copies. The front cover must present
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| +the full title with all words of the title equally prominent and
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| +visible. You may add other material on the covers in addition.
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| +Copying with changes limited to the covers, as long as they preserve
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| +the title of the Document and satisfy these conditions, can be treated
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| +as verbatim copying in other respects.
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| +
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| +If the required texts for either cover are too voluminous to fit
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| +legibly, you should put the first ones listed (as many as fit
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| +reasonably) on the actual cover, and continue the rest onto adjacent
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| +pages.
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| +
|
| +If you publish or distribute Opaque copies of the Document numbering
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| +more than 100, you must either include a machine-readable Transparent
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| +copy along with each Opaque copy, or state in or with each Opaque copy
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| +a computer-network location from which the general network-using
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| +public has access to download using public-standard network protocols
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| +a complete Transparent copy of the Document, free of added material.
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| +If you use the latter option, you must take reasonably prudent steps,
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| +when you begin distribution of Opaque copies in quantity, to ensure
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| +that this Transparent copy will remain thus accessible at the stated
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| +location until at least one year after the last time you distribute an
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| +Opaque copy (directly or through your agents or retailers) of that
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| +edition to the public.
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| +
|
| +It is requested, but not required, that you contact the authors of the
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| +Document well before redistributing any large number of copies, to give
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| +them a chance to provide you with an updated version of the Document.
|
| +
|
| +@item
|
| +MODIFICATIONS
|
| +
|
| +You may copy and distribute a Modified Version of the Document under
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| +the conditions of sections 2 and 3 above, provided that you release
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| +the Modified Version under precisely this License, with the Modified
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| +Version filling the role of the Document, thus licensing distribution
|
| +and modification of the Modified Version to whoever possesses a copy
|
| +of it. In addition, you must do these things in the Modified Version:
|
| +
|
| +@enumerate A
|
| +@item
|
| +Use in the Title Page (and on the covers, if any) a title distinct
|
| +from that of the Document, and from those of previous versions
|
| +(which should, if there were any, be listed in the History section
|
| +of the Document). You may use the same title as a previous version
|
| +if the original publisher of that version gives permission.
|
| +
|
| +@item
|
| +List on the Title Page, as authors, one or more persons or entities
|
| +responsible for authorship of the modifications in the Modified
|
| +Version, together with at least five of the principal authors of the
|
| +Document (all of its principal authors, if it has fewer than five),
|
| +unless they release you from this requirement.
|
| +
|
| +@item
|
| +State on the Title page the name of the publisher of the
|
| +Modified Version, as the publisher.
|
| +
|
| +@item
|
| +Preserve all the copyright notices of the Document.
|
| +
|
| +@item
|
| +Add an appropriate copyright notice for your modifications
|
| +adjacent to the other copyright notices.
|
| +
|
| +@item
|
| +Include, immediately after the copyright notices, a license notice
|
| +giving the public permission to use the Modified Version under the
|
| +terms of this License, in the form shown in the Addendum below.
|
| +
|
| +@item
|
| +Preserve in that license notice the full lists of Invariant Sections
|
| +and required Cover Texts given in the Document's license notice.
|
| +
|
| +@item
|
| +Include an unaltered copy of this License.
|
| +
|
| +@item
|
| +Preserve the section Entitled ``History'', Preserve its Title, and add
|
| +to it an item stating at least the title, year, new authors, and
|
| +publisher of the Modified Version as given on the Title Page. If
|
| +there is no section Entitled ``History'' in the Document, create one
|
| +stating the title, year, authors, and publisher of the Document as
|
| +given on its Title Page, then add an item describing the Modified
|
| +Version as stated in the previous sentence.
|
| +
|
| +@item
|
| +Preserve the network location, if any, given in the Document for
|
| +public access to a Transparent copy of the Document, and likewise
|
| +the network locations given in the Document for previous versions
|
| +it was based on. These may be placed in the ``History'' section.
|
| +You may omit a network location for a work that was published at
|
| +least four years before the Document itself, or if the original
|
| +publisher of the version it refers to gives permission.
|
| +
|
| +@item
|
| +For any section Entitled ``Acknowledgements'' or ``Dedications'', Preserve
|
| +the Title of the section, and preserve in the section all the
|
| +substance and tone of each of the contributor acknowledgements and/or
|
| +dedications given therein.
|
| +
|
| +@item
|
| +Preserve all the Invariant Sections of the Document,
|
| +unaltered in their text and in their titles. Section numbers
|
| +or the equivalent are not considered part of the section titles.
|
| +
|
| +@item
|
| +Delete any section Entitled ``Endorsements''. Such a section
|
| +may not be included in the Modified Version.
|
| +
|
| +@item
|
| +Do not retitle any existing section to be Entitled ``Endorsements'' or
|
| +to conflict in title with any Invariant Section.
|
| +
|
| +@item
|
| +Preserve any Warranty Disclaimers.
|
| +@end enumerate
|
| +
|
| +If the Modified Version includes new front-matter sections or
|
| +appendices that qualify as Secondary Sections and contain no material
|
| +copied from the Document, you may at your option designate some or all
|
| +of these sections as invariant. To do this, add their titles to the
|
| +list of Invariant Sections in the Modified Version's license notice.
|
| +These titles must be distinct from any other section titles.
|
| +
|
| +You may add a section Entitled ``Endorsements'', provided it contains
|
| +nothing but endorsements of your Modified Version by various
|
| +parties---for example, statements of peer review or that the text has
|
| +been approved by an organization as the authoritative definition of a
|
| +standard.
|
| +
|
| +You may add a passage of up to five words as a Front-Cover Text, and a
|
| +passage of up to 25 words as a Back-Cover Text, to the end of the list
|
| +of Cover Texts in the Modified Version. Only one passage of
|
| +Front-Cover Text and one of Back-Cover Text may be added by (or
|
| +through arrangements made by) any one entity. If the Document already
|
| +includes a cover text for the same cover, previously added by you or
|
| +by arrangement made by the same entity you are acting on behalf of,
|
| +you may not add another; but you may replace the old one, on explicit
|
| +permission from the previous publisher that added the old one.
|
| +
|
| +The author(s) and publisher(s) of the Document do not by this License
|
| +give permission to use their names for publicity for or to assert or
|
| +imply endorsement of any Modified Version.
|
| +
|
| +@item
|
| +COMBINING DOCUMENTS
|
| +
|
| +You may combine the Document with other documents released under this
|
| +License, under the terms defined in section 4 above for modified
|
| +versions, provided that you include in the combination all of the
|
| +Invariant Sections of all of the original documents, unmodified, and
|
| +list them all as Invariant Sections of your combined work in its
|
| +license notice, and that you preserve all their Warranty Disclaimers.
|
| +
|
| +The combined work need only contain one copy of this License, and
|
| +multiple identical Invariant Sections may be replaced with a single
|
| +copy. If there are multiple Invariant Sections with the same name but
|
| +different contents, make the title of each such section unique by
|
| +adding at the end of it, in parentheses, the name of the original
|
| +author or publisher of that section if known, or else a unique number.
|
| +Make the same adjustment to the section titles in the list of
|
| +Invariant Sections in the license notice of the combined work.
|
| +
|
| +In the combination, you must combine any sections Entitled ``History''
|
| +in the various original documents, forming one section Entitled
|
| +``History''; likewise combine any sections Entitled ``Acknowledgements'',
|
| +and any sections Entitled ``Dedications''. You must delete all
|
| +sections Entitled ``Endorsements.''
|
| +
|
| +@item
|
| +COLLECTIONS OF DOCUMENTS
|
| +
|
| +You may make a collection consisting of the Document and other documents
|
| +released under this License, and replace the individual copies of this
|
| +License in the various documents with a single copy that is included in
|
| +the collection, provided that you follow the rules of this License for
|
| +verbatim copying of each of the documents in all other respects.
|
| +
|
| +You may extract a single document from such a collection, and distribute
|
| +it individually under this License, provided you insert a copy of this
|
| +License into the extracted document, and follow this License in all
|
| +other respects regarding verbatim copying of that document.
|
| +
|
| +@item
|
| +AGGREGATION WITH INDEPENDENT WORKS
|
| +
|
| +A compilation of the Document or its derivatives with other separate
|
| +and independent documents or works, in or on a volume of a storage or
|
| +distribution medium, is called an ``aggregate'' if the copyright
|
| +resulting from the compilation is not used to limit the legal rights
|
| +of the compilation's users beyond what the individual works permit.
|
| +When the Document is included in an aggregate, this License does not
|
| +apply to the other works in the aggregate which are not themselves
|
| +derivative works of the Document.
|
| +
|
| +If the Cover Text requirement of section 3 is applicable to these
|
| +copies of the Document, then if the Document is less than one half of
|
| +the entire aggregate, the Document's Cover Texts may be placed on
|
| +covers that bracket the Document within the aggregate, or the
|
| +electronic equivalent of covers if the Document is in electronic form.
|
| +Otherwise they must appear on printed covers that bracket the whole
|
| +aggregate.
|
| +
|
| +@item
|
| +TRANSLATION
|
| +
|
| +Translation is considered a kind of modification, so you may
|
| +distribute translations of the Document under the terms of section 4.
|
| +Replacing Invariant Sections with translations requires special
|
| +permission from their copyright holders, but you may include
|
| +translations of some or all Invariant Sections in addition to the
|
| +original versions of these Invariant Sections. You may include a
|
| +translation of this License, and all the license notices in the
|
| +Document, and any Warranty Disclaimers, provided that you also include
|
| +the original English version of this License and the original versions
|
| +of those notices and disclaimers. In case of a disagreement between
|
| +the translation and the original version of this License or a notice
|
| +or disclaimer, the original version will prevail.
|
| +
|
| +If a section in the Document is Entitled ``Acknowledgements'',
|
| +``Dedications'', or ``History'', the requirement (section 4) to Preserve
|
| +its Title (section 1) will typically require changing the actual
|
| +title.
|
| +
|
| +@item
|
| +TERMINATION
|
| +
|
| +You may not copy, modify, sublicense, or distribute the Document except
|
| +as expressly provided for under this License. Any other attempt to
|
| +copy, modify, sublicense or distribute the Document is void, and will
|
| +automatically terminate your rights under this License. However,
|
| +parties who have received copies, or rights, from you under this
|
| +License will not have their licenses terminated so long as such
|
| +parties remain in full compliance.
|
| +
|
| +@item
|
| +FUTURE REVISIONS OF THIS LICENSE
|
| +
|
| +The Free Software Foundation may publish new, revised versions
|
| +of the GNU Free Documentation License from time to time. Such new
|
| +versions will be similar in spirit to the present version, but may
|
| +differ in detail to address new problems or concerns. See
|
| +@uref{http://www.gnu.org/copyleft/}.
|
| +
|
| +Each version of the License is given a distinguishing version number.
|
| +If the Document specifies that a particular numbered version of this
|
| +License ``or any later version'' applies to it, you have the option of
|
| +following the terms and conditions either of that specified version or
|
| +of any later version that has been published (not as a draft) by the
|
| +Free Software Foundation. If the Document does not specify a version
|
| +number of this License, you may choose any version ever published (not
|
| +as a draft) by the Free Software Foundation.
|
| +@end enumerate
|
| +
|
| +@page
|
| +@heading ADDENDUM: How to use this License for your documents
|
| +
|
| +To use this License in a document you have written, include a copy of
|
| +the License in the document and put the following copyright and
|
| +license notices just after the title page:
|
| +
|
| +@smallexample
|
| +@group
|
| + Copyright (C) @var{year} @var{your name}.
|
| + Permission is granted to copy, distribute and/or modify this document
|
| + under the terms of the GNU Free Documentation License, Version 1.2
|
| + or any later version published by the Free Software Foundation;
|
| + with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
|
| + Texts. A copy of the license is included in the section entitled ``GNU
|
| + Free Documentation License''.
|
| +@end group
|
| +@end smallexample
|
| +
|
| +If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
|
| +replace the ``with@dots{}Texts.'' line with this:
|
| +
|
| +@smallexample
|
| +@group
|
| + with the Invariant Sections being @var{list their titles}, with
|
| + the Front-Cover Texts being @var{list}, and with the Back-Cover Texts
|
| + being @var{list}.
|
| +@end group
|
| +@end smallexample
|
| +
|
| +If you have Invariant Sections without Cover Texts, or some other
|
| +combination of the three, merge those two alternatives to suit the
|
| +situation.
|
| +
|
| +If your document contains nontrivial examples of program code, we
|
| +recommend releasing these examples in parallel under your choice of
|
| +free software license, such as the GNU General Public License,
|
| +to permit their use in free software.
|
| +
|
| +@c Local Variables:
|
| +@c ispell-local-pdict: "ispell-dict"
|
| +@c End:
|
| +
|
|
|