<!-- Markup by Paul Pogonyshev, October 2004. -->

<appendix id="fdl">
  <docinfo>
    <releaseinfo>
      Version 1.2, November 2002
    </releaseinfo>
    <copyright>
      <year>2000</year>
      <year>2001</year>
      <year>2002</year>
      <holder>Free Software Foundation, Inc.</holder>
    </copyright>
    <legalnotice id="fdl-legalnotice">
      <para>
	<address>
	  Free Software Foundation, Inc.
	  <street>51 Franklin Street, Fifth Floor</street>,
	  <city>Boston</city>, <state>MA</state>
	  <postcode>02110-1301</postcode>
	  <country>USA</country>
	</address>
	Everyone is permitted to copy and distribute verbatim copies of this license
	document, but changing it is not allowed.
      </para>
    </legalnotice>
  </docinfo>

  <title>GNU Free Documentation License</title>
  <!-- subtitle doesn't get rendered properly :( -->
  <bridgehead renderas="sect3">Version 1.2, November 2002</bridgehead>

  <blockquote>
    <para>
      Copyright &copy; 2000, 2001, 2002 Free Software Foundation, Inc. 51 Franklin St,
      Fifth Floor, Boston, MA 02110-1301 USA
    </para>

    <para>
      Everyone is permitted to copy and distribute verbatim copies of this license
      document, but changing it is not allowed.
    </para>
  </blockquote>

  <simplesect>
    <bridgehead id="fdl-preamble" renderas="sect3">0. PREAMBLE</bridgehead>
    <para>
      The purpose of this License is to make a manual, textbook, or other functional and
      useful document <quote>free</quote> in the sense of freedom: to assure everyone the
      effective freedom to copy and redistribute it, with or without modifying it, either
      commercially or noncommercially.  Secondarily, this License preserves for the author
      and publisher a way to get credit for their work, while not being considered
      responsible for modifications made by others.
    </para>

    <para>
      This License is a kind of <quote>copyleft</quote>, which means that derivative works
      of the document must themselves be free in the same sense.  It complements the GNU
      General Public License, which is a copyleft license designed for free software.
    </para>

    <para>
      We have designed this License in order to use it for manuals for free software,
      because free software needs free documentation: a free program should come with
      manuals providing the same freedoms that the software does.  But this License is not
      limited to software manuals; it can be used for any textual work, regardless of
      subject matter or whether it is published as a printed book.  We recommend this
      License principally for works whose purpose is instruction or reference.
    </para>

    <bridgehead id="fdl-section1" renderas="sect3">1. APPLICABILITY AND
      DEFINITIONS</bridgehead>
    <para id="fdl-document">
      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 distributed under the terms
      of this License.  Such a notice grants a world-wide, royalty-free license, unlimited
      in duration, to use that work under the conditions stated herein.  The
      <quote>Document</quote>, below, refers to any such manual or work.  Any member of
      the public is a licensee, and is addressed as <quote>you</quote>.  You accept the
      license if you copy, modify or distribute the work in a way requiring permission
      under copyright law.
    </para>

    <para id="fdl-modified">
      A <quote>Modified Version</quote> of the Document means any work containing the
      Document or a portion of it, either copied verbatim, or with modifications and/or
      translated into another language.
    </para>

    <para id="fdl-secondary">
      A <quote>Secondary Section</quote> is a named appendix or a front-matter section of
      the Document that deals exclusively with the relationship of the publishers or
      authors of the Document to the Document’s overall subject (or to related matters)
      and contains nothing that could fall directly within that overall subject.  (Thus,
      if the Document is in part a textbook of mathematics, a Secondary Section may not
      explain any mathematics.)  The relationship could be a matter of historical
      connection with the subject or with related matters, or of legal, commercial,
      philosophical, ethical or political position regarding them.
    </para>

    <para id="fdl-invariant">
      The <quote>Invariant Sections</quote> are certain Secondary Sections whose titles
      are designated, as being those of Invariant Sections, in the notice that says that
      the Document is released under this License.  If a section does not fit the above
      definition of Secondary then it is not allowed to be designated as Invariant.  The
      Document may contain zero Invariant Sections.  If the Document does not identify any
      Invariant Sections then there are none.
    </para>

    <para id="fdl-cover-texts">
      The <quote>Cover Texts</quote> are certain short passages of text that are listed,
      as Front-Cover Texts or Back-Cover Texts, in the notice that says that the Document
      is released under this License.  A Front-Cover Text may be at most 5 words, and a
      Back-Cover Text may be at most 25 words.
    </para>

    <para id="fdl-transparent">
      A <quote>Transparent</quote> copy of the Document means a machine-readable copy,
      represented in a format whose specification is available to the general public, that
      is suitable for revising the document straightforwardly with generic text editors or
      (for images composed of pixels) generic paint programs or (for drawings) some widely
      available drawing editor, and that is suitable for input to text formatters or for
      automatic translation to a variety of formats suitable for input to text formatters.
      A copy made in an otherwise Transparent file format whose markup, or absence of
      markup, has been arranged to thwart or discourage subsequent modification by readers
      is not Transparent.  An image format is not Transparent if used for any substantial
      amount of text.  A copy that is not <quote>Transparent</quote> is called
      <quote>Opaque</quote>.
    </para>

    <para>
      Examples of suitable formats for Transparent copies include plain ASCII without
      markup, Texinfo input format, LaTeX input format, SGML or XML using a publicly
      available DTD, and standard-conforming simple HTML, PostScript or PDF designed for
      human modification.  Examples of transparent image formats include PNG, XCF and JPG.
      Opaque formats include proprietary formats that can be read and edited only by
      proprietary word processors, SGML or XML for which the DTD and/or processing tools
      are not generally available, and the machine-generated HTML, PostScript or PDF
      produced by some word processors for output purposes only.
    </para>

    <para id="fdl-title-page">
      The <quote>Title Page</quote> means, for a printed book, the title page itself, plus
      such following pages as are needed to hold, legibly, the material this License
      requires to appear in the title page.  For works in formats which do not have any
      title page as such, <quote>Title Page</quote> means the text near the most prominent
      appearance of the work’s title, preceding the beginning of the body of the text.
    </para>

    <para id="fdl-entitled">
      A section <quote>Entitled XYZ</quote> means a named subunit of the Document whose
      title either is precisely XYZ or contains XYZ in parentheses following text that
      translates XYZ in another language.  (Here XYZ stands for a specific section name
      mentioned below, such as <quote>Acknowledgements</quote>,
      <quote>Dedications</quote>, <quote>Endorsements</quote>, or
      <quote>History</quote>.)  To <quote>Preserve the Title</quote> of such a section
      when you modify the Document means that it remains a section
      <quote>Entitled XYZ</quote> according to this definition.
    </para>

    <para id="fdl-warranty">
      The Document may include Warranty Disclaimers next to the notice which states that
      this License applies to the Document.  These Warranty Disclaimers are considered to
      be included by reference in this License, but only as regards disclaiming
      warranties: any other implication that these Warranty Disclaimers may have is void
      and has no effect on the meaning of this License.
    </para>

    <bridgehead id="fdl-section2" renderas="sect3">2. VERBATIM COPYING</bridgehead>
    <para>
      You may copy and distribute the <link linkend="fdl-document">Document</link> in any
      medium, either commercially or noncommercially, provided that this License, the
      copyright notices, and the license notice saying this License applies to the
      Document are reproduced in all copies, and that you add no other conditions
      whatsoever to those of this License.  You may not use technical measures to obstruct
      or control the reading or further copying of the copies you make or distribute.
      However, you may accept compensation in exchange for copies.  If you distribute a
      large enough number of copies you must also follow the conditions in
      <link linkend="fdl-section3">section 3</link>.
    </para>

    <para>
      You may also lend copies, under the same conditions stated above, and you may
      publicly display copies.
    </para>

    <bridgehead id="fdl-section3" renderas="sect3">3. COPYING IN QUANTITY</bridgehead>
    <para>
      If you publish printed copies (or copies in media that commonly have printed covers)
      of the <link linkend="fdl-document">Document</link>, numbering more than 100, and
      the Document’s license notice requires
      <link linkend="fdl-cover-texts">Cover Texts</link>, you must enclose the copies in
      covers that carry, clearly and legibly, all these Cover Texts: Front-Cover Texts on
      the front cover, and Back-Cover Texts on the back cover.  Both covers must also
      clearly and legibly identify you as the publisher of these copies.  The front cover
      must present the full title with all words of the title equally prominent and
      visible.  You may add other material on the covers in addition.  Copying with
      changes limited to the covers, as long as they preserve the title of the Document
      and satisfy these conditions, can be treated as verbatim copying in other respects.
    </para>

    <para>
      If the required texts for either cover are too voluminous to fit legibly, you should
      put the first ones listed (as many as fit reasonably) on the actual cover, and
      continue the rest onto adjacent pages.
    </para>

    <para>
      If you publish or distribute <link linkend="fdl-transparent">Opaque</link> copies of
      the Document numbering more than 100, you must either include a machine-readable
      <link linkend="fdl-transparent">Transparent</link> copy along with each Opaque copy,
      or state in or with each Opaque copy a computer-network location from which the
      general network-using public has access to download using public-standard network
      protocols a complete Transparent copy of the Document, free of added material.  If
      you use the latter option, you must take reasonably prudent steps, when you begin
      distribution of Opaque copies in quantity, to ensure that this Transparent copy will
      remain thus accessible at the stated location until at least one year after the last
      time you distribute an Opaque copy (directly or through your agents or retailers) of
      that edition to the public.
    </para>

    <para>
      It is requested, but not required, that you contact the authors of the Document well
      before redistributing any large number of copies, to give them a chance to provide
      you with an updated version of the Document.
    </para>

    <bridgehead id="fdl-section4" renderas="sect3">4. MODIFICATIONS</bridgehead>
    <para>
      You may copy and distribute a <link linkend="fdl-modified">Modified Version</link>
      of the <link linkend="fdl-document">Document</link> under the conditions of
      sections <link linkend="fdl-section2">2</link> and
      <link linkend="fdl-section3">3</link> above, provided that you release the Modified
      Version under precisely this License, with the Modified 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:
    </para>

    <orderedlist numeration="upperalpha">
      <listitem>
	<para>
	  Use in the <link linkend="fdl-title-page">Title Page</link> (and on the
	  <link linkend="fdl-cover-texts">covers</link>, 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.
	</para>
      </listitem>

      <listitem>
	<para>
	  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.
	</para>
      </listitem>

      <listitem>
	<para>
	  State on the Title page the name of the publisher of the Modified Version, as
	  the publisher.
	</para>
      </listitem>

      <listitem>
	<para>
	  Preserve all the copyright notices of the Document.
	</para>
      </listitem>

      <listitem>
	<para>
	  Add an appropriate copyright notice for your modifications adjacent to the other
	  copyright notices.
	</para>
      </listitem>

      <listitem>
	<para>
	  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 <link linkend="fdl-addendum">Addendum</link> below.
	</para>
      </listitem>

      <listitem>
	<para>
	  Preserve in that license notice the full lists of
	  <link linkend="fdl-invariant">Invariant Sections</link> and required Cover Texts
	  given in the Document’s license notice.
	</para>
      </listitem>

      <listitem>
	<para>
	  Include an unaltered copy of this License.
	</para>
      </listitem>

      <listitem>
	<para>
	  Preserve the section <link linkend="fdl-entitled">Entitled</link>
	  <quote>History</quote>, 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 <quote>History</quote>
	  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.
	</para>
      </listitem>

      <listitem>
	<para>
	  Preserve the network location, if any, given in the Document for public access
	  to a <link linkend="fdl-transparent">Transparent</link> 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 <quote>History</quote> 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.
	</para>
      </listitem>

      <listitem>
	<para>
	  For any section Entitled <quote>Acknowledgements</quote> or
	  <quote>Dedications</quote>, 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.
	</para>
      </listitem>

      <listitem>
	<para>
	  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.
	</para>
      </listitem>

      <listitem>
	<para>
	  Delete any section Entitled <quote>Endorsements</quote>.  Such a section may not
	  be included in the Modified Version.
	</para>
      </listitem>

      <listitem>
	<para>
	  Do not retitle any existing section to be Entitled <quote>Endorsements</quote>
	  or to conflict in title with any Invariant Section.
	</para>
      </listitem>

      <listitem>
	<para>
	  Preserve any <link linkend="fdl-warranty">Warranty Disclaimers</link>.
	</para>
      </listitem>
    </orderedlist>

    <para>
      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.
    </para>

    <para>
      You may add a section Entitled <quote>Endorsements</quote>, provided it contains
      nothing but endorsements of your Modified Version by various parties&mdash;for
      example, statements of peer review or that the text has been approved by an
      organization as the authoritative definition of a standard.
    </para>

    <para>
      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.
    </para>

    <para>
      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.
    </para>

    <bridgehead id="fdl-section5" renderas="sect3">5. COMBINING DOCUMENTS</bridgehead>
    <para>
      You may combine the <link linkend="fdl-document">Document</link> with other
      documents released under this License, under the terms defined in
      <link linkend="fdl-section4">section 4</link> above for
      <link linkend="fdl-modified">modified versions</link>, provided that you include in
      the combination all of the <link linkend="fdl-invariant">Invariant Sections</link>
      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 <link linkend="fdl-warranty">Warranty Disclaimers</link>.
    </para>

    <para>
      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.
    </para>

    <para>
      In the combination, you must combine any sections
      <link linkend="fdl-entitled">Entitled</link> <quote>History</quote> in the various
      original documents, forming one section Entitled <quote>History</quote>; likewise
      combine any sections Entitled <quote>Acknowledgements</quote>, and any sections
      Entitled <quote>Dedications</quote>.  You must delete all sections Entitled
      <quote>Endorsements.</quote>
    </para>

    <bridgehead id="fdl-section6" renderas="sect3">6. COLLECTIONS OF
      DOCUMENTS</bridgehead>
    <para>
      You may make a collection consisting of the
      <link linkend="fdl-document">Document</link> 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.
    </para>

    <para>
      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.
    </para>

    <bridgehead id="fdl-section7" renderas="sect3">7. AGGREGATION WITH INDEPENDENT
      WORKS</bridgehead>
    <para>
      A compilation of the <link linkend="fdl-document">Document</link> 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 <quote>aggregate</quote> 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.
    </para>

    <para>
      If the <link linkend="fdl-cover-texts">Cover Text</link> requirement of
      <link linkend="fdl-section3">section 3</link> 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.
    </para>

    <bridgehead id="fdl-section8" renderas="sect3">8. TRANSLATION</bridgehead>
    <para>
      Translation is considered a kind of modification, so you may distribute translations
      of the <link linkend="fdl-document">Document</link> under the terms of
      <link linkend="fdl-section4">section 4</link>.  Replacing
      <link linkend="fdl-invariant">Invariant Sections</link> 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
      <link linkend="fdl-warranty">Warranty Disclaimers</link>, 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.
    </para>

    <para>
      If a section in the Document is <link linkend="fdl-entitled">Entitled</link>
      <quote>Acknowledgements</quote>, <quote>Dedications</quote>, or
      <quote>History</quote>, the requirement
      (<link linkend="fdl-section4">section 4</link>) to Preserve its Title
      (<link linkend="fdl-section1">section 1</link>) will typically require changing the
      actual title.
    </para>

    <bridgehead id="fdl-section9" renderas="sect3">9. TERMINATION</bridgehead>
    <para>
      You may not copy, modify, sublicense, or distribute the
      <link linkend="fdl-document">Document</link> 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.
    </para>

    <bridgehead id="fdl-section10" renderas="sect3">10. FUTURE REVISIONS OF THIS
      LICENSE</bridgehead>
    <para>
      The
      <ulink type="http"
	     url="http://www.gnu.org/fsf/fsf.html">Free Software Foundation</ulink>
      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
      <ulink type="http"
	     url="http://www.gnu.org/copyleft/">http://www.gnu.org/copyleft/</ulink>.
    </para>

    <para>
      Each version of the License is given a distinguishing version number.  If the
      <link linkend="fdl-document">Document</link> specifies that a particular numbered
      version of this License <quote>or any later version</quote> 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.
    </para>

    <bridgehead id="fdl-addendum" renderas="sect3">ADDENDUM: How to use this License for
      your documents</bridgehead>
    <para>
      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:
    </para>

    <blockquote id="copyright-sample">
      <para>
	Copyright &copy; YEAR YOUR NAME.
      </para>

      <para>
	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 <quote>GNU Free Documentation License</quote>.
      </para>
    </blockquote>

    <para>
      If you have <link linkend="fdl-invariant">Invariant Sections</link>,
      <link linkend="fdl-cover-texts">Front-Cover Texts and Back-Cover Texts</link>,
      replace the <quote>with...Texts.</quote> line with this:
    </para>

    <blockquote id="inv-cover-sample">
      <para>
	with the Invariant Sections being LIST THEIR TITLES, with the Front-Cover Texts
	being LIST, and with the Back-Cover Texts being LIST.
      </para>
    </blockquote>

    <para>
      If you have Invariant Sections without Cover Texts, or some other combination of the
      three, merge those two alternatives to suit the situation.
    </para>

    <para>
      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
      <ulink type="http" url="http://www.gnu.org/copyleft/gpl.html">GNU General Public
	License</ulink>,
      to permit their use in free software.
    </para>
  </simplesect>
</appendix>

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