<!--  
     The GNU Free Documentation License 1.1 in DocBook
     Markup by Eric Baudais <baudais@okstate.edu>
     Maintained by the GNOME Documentation Project
     http://developer.gnome.org/projects/gdp
     Version: 1.0.1
     Last Modified: Nov 16, 2000
-->

  <appendix id="fdl">
    <title>GNU Free Documentation License</title>

    <sect1 id="fdl-preamble">
      <title>0. PREAMBLE</title>
      <para>
	The purpose of this License is to make a manual, textbook, or
	other written 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>
    </sect1>
    <sect1 id="fdl-section1">
      <title>1. APPLICABILITY AND DEFINITIONS</title>
      <para id="fdl-document">
	This License applies to any manual or other work that contains a
	notice placed by the copyright holder saying it can be
	distributed under the terms of this License. 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>.
      </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 <link
					  linkend="fdl-document">Document</link> 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. (For example, 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 <link
								linkend="fdl-secondary"> Secondary Sections</link> whose titles
	are designated, as being those of Invariant Sections, in the
	notice that says that the <link
					linkend="fdl-document">Document</link> is released under this
	License.
      </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 <link
					       linkend="fdl-document">Document</link> is released under this
	License.
      </para>
      
      <para id="fdl-transparent">
	A <quote>Transparent</quote> copy of the <link
						       linkend="fdl-document"> Document</link> means a machine-readable
	copy, represented in a format whose specification is available
	to the general public, whose contents can be viewed and edited
	directly and 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 has been designed to thwart or discourage
	subsequent modification by readers is not Transparent.  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 designed for human
	modification. Opaque formats include PostScript, PDF,
	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 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>
    </sect1>
    
    <sect1 id="fdl-section2">
      <title>2. VERBATIM COPYING</title>
      <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>
    </sect1>
    
    <sect1 id="fdl-section3">
      <title>3. COPYING IN QUANTITY</title>
      <para>
	If you publish printed copies 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
	<link linkend="fdl-document">Document</link> 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 <link
												       linkend="fdl-document">Document</link> 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
	publicly-accessible computer-network location containing a
	complete Transparent copy of the Document, free of added
	material, which the general network-using public has access to
	download anonymously at no charge using public-standard network
	protocols. 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 <link linkend="fdl-document">Document</link> well before
	redistributing any large number of copies, to give them a chance
	to provide you with an updated version of the Document.
      </para>
    </sect1>
    
    <sect1 id="fdl-section4">
      <title>4. MODIFICATIONS</title>
      <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>
      
      <itemizedlist mark="opencircle">
	<listitem>
	  <formalpara>
	    <title>A</title>
	    <para>
	      Use in the <link linkend="fdl-title-page">Title
		Page</link> (and on the covers, if any) a title distinct
	      from that of the <link
				     linkend="fdl-document">Document</link>, 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>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>B</title>
	    <para>
	      List on the <link linkend="fdl-title-page">Title
		Page</link>, as authors, one or more persons or entities
	      responsible for authorship of the modifications in the
	      <link linkend="fdl-modified">Modified Version</link>,
	      together with at least five of the principal authors of
	      the <link linkend="fdl-document">Document</link> (all of
	      its principal authors, if it has less than five).
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>C</title>
	    <para>
	      State on the <link linkend="fdl-title-page">Title
		Page</link> the name of the publisher of the <link
								   linkend="fdl-modified">Modified Version</link>, as the
	      publisher.
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>D</title>
	    <para>
	      Preserve all the copyright notices of the <link
							      linkend="fdl-document">Document</link>.
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>E</title>
	    <para>
	      Add an appropriate copyright notice for your modifications
	      adjacent to the other copyright notices.
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>F</title>
	    <para>
	      Include, immediately after the copyright notices, a
	      license notice giving the public permission to use the
	      <link linkend="fdl-modified">Modified Version</link> under
	      the terms of this License, in the form shown in the
	      Addendum below.
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>G</title>
	    <para>
	      Preserve in that license notice the full lists of <link
								      linkend="fdl-invariant"> Invariant Sections</link> and
	      required <link linkend="fdl-cover-texts">Cover
		Texts</link> given in the <link
						linkend="fdl-document">Document's</link> license notice.
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>H</title>
	    <para>
	      Include an unaltered copy of this License.
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>I</title>
	    <para>
	      Preserve the section entitled <quote>History</quote>, and
	      its title, and add to it an item stating at least the
	      title, year, new authors, and publisher of the <link
								   linkend="fdl-modified">Modified Version </link>as given on
	      the <link linkend="fdl-title-page">Title Page</link>.  If
	      there is no section entitled <quote>History</quote> in the
	      <link linkend="fdl-document">Document</link>, 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>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>J</title>
	    <para>
	      Preserve the network location, if any, given in the <link
									linkend="fdl-document">Document</link> 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>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>K</title>
	    <para>
	      In any section entitled <quote>Acknowledgements</quote> or
	      <quote>Dedications</quote>, preserve the section's title,
	      and preserve in the section all the substance and tone of
	      each of the contributor acknowledgements and/or
	      dedications given therein.
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>L</title>
	    <para>
	      Preserve all the <link linkend="fdl-invariant">Invariant
		Sections</link> of the <link
					     linkend="fdl-document">Document</link>, unaltered in their
	      text and in their titles.  Section numbers or the
	      equivalent are not considered part of the section titles.
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>M</title>
	    <para>
	      Delete any section entitled
	      <quote>Endorsements</quote>. Such a section may not be
	      included in the <link linkend="fdl-modified">Modified
		Version</link>.
	    </para>
	  </formalpara>
	</listitem>
	
	<listitem>
	  <formalpara>
	    <title>N</title>
	    <para>
	      Do not retitle any existing section as
	      <quote>Endorsements</quote> or to conflict in title with
	      any <link linkend="fdl-invariant">Invariant
		Section</link>.
	    </para>
	  </formalpara>
	</listitem>
      </itemizedlist>
      
      <para>
	If the <link linkend="fdl-modified">Modified Version</link>
	includes new front-matter sections or appendices that qualify as
	<link linkend="fdl-secondary">Secondary Sections</link> 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 <link
						       linkend="fdl-invariant">Invariant Sections</link> 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 <link
								    linkend="fdl-modified">Modified Version</link> 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.
      </para>
      
      <para>
	You may add a passage of up to five words as a <link
							     linkend="fdl-cover-texts">Front-Cover Text</link>, and a passage
	of up to 25 words as a <link
				     linkend="fdl-cover-texts">Back-Cover Text</link>, to the end of
	the list of <link linkend="fdl-cover-texts">Cover Texts</link>
	in the <link linkend="fdl-modified">Modified Version</link>.
	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 <link linkend="fdl-document">Document</link>
	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 <link
						    linkend="fdl-document">Document</link> do not by this License
	give permission to use their names for publicity for or to
	assert or imply endorsement of any <link
						 linkend="fdl-modified">Modified Version </link>.
      </para>
    </sect1>
    
    <sect1 id="fdl-section5">
      <title>5. COMBINING DOCUMENTS</title>
      <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 modified versions, 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.
      </para>
      
      <para>
	The combined work need only contain one copy of this License,
	and multiple identical <link linkend="fdl-invariant">Invariant
	  Sections</link> 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 entitled
	<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>
    </sect1>
    
    <sect1 id="fdl-section6">
      <title>6. COLLECTIONS OF DOCUMENTS</title>
      <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
	dispbibute 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>
    </sect1>
    
    <sect1 id="fdl-section7">
      <title>7. AGGREGATION WITH INDEPENDENT WORKS</title>
      <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, does not as a whole
	count as a <link linkend="fdl-modified">Modified Version</link>
	of the Document, provided no compilation copyright is claimed
	for the compilation.  Such a compilation is called an
	<quote>aggregate</quote>, and this License does not apply to the
	other self-contained works thus compiled with the Document , on
	account of their being thus compiled, if they are not themselves
	derivative works of the Document.  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
	quarter of the entire aggregate, the Document's Cover Texts may
	be placed on covers that surround only the Document within the
	aggregate. Otherwise they must appear on covers around the whole
	aggregate.
      </para>
    </sect1>
    
    <sect1 id="fdl-section8">
      <title>8. TRANSLATION</title>
      <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 provided that you also include the original English
	version of this License. In case of a disagreement between the
	translation and the original English version of this License,
	the original English version will prevail.
      </para>
    </sect1>
    
    <sect1 id="fdl-section9">
      <title>9. TERMINATION</title>
      <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>
    </sect1>
    
    <sect1 id="fdl-section10">
      <title>10. FUTURE REVISIONS OF THIS LICENSE</title>
      <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>
    </sect1>

    <sect1 id="fdl-using">
      <title>Addendum</title>
      <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>
	<para>
	  Copyright (C); 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 1.1 or any later version published by the
	  Free Software Foundation; with the <link
						   linkend="fdl-invariant">Invariant Sections</link> being LIST
	  THEIR TITLES, with the <link
				       linkend="fdl-cover-texts">Front-Cover Texts</link> being LIST,
	  and with the <link linkend="fdl-cover-texts">Back-Cover
	    Texts</link> being LIST.  A copy of the license is included in
	  the section entitled <quote>GNU Free Documentation
	    License</quote>.
	</para>
      </blockquote>
      
      <para>
	If you have no <link linkend="fdl-invariant">Invariant
	  Sections</link>, write <quote>with no Invariant Sections</quote>
	instead of saying which ones are invariant.  If you have no
	<link linkend="fdl-cover-texts">Front-Cover Texts</link>, write
	<quote>no Front-Cover Texts</quote> instead of
	<quote>Front-Cover Texts being LIST</quote>; likewise for <link
									linkend="fdl-cover-texts">Back-Cover Texts</link>.
      </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>
    </sect1>
  </appendix>  

  <!-- Keep this comment at the end of the file
  Local variables:
  mode: xml
  sgml-omittag:nil
  sgml-shorttag:nil
  sgml-minimize-attributes:nil
  sgml-always-quote-attributes:t
  sgml-indent-step:2
  sgml-indent-data:t
  sgml-default-dtd-file:"dbxbook4.1.2.ced"
  sgml-exposed-tags:nil
  sgml-local-catalogs:nil
  sgml-local-ecat-files:nil
  sgml-declaration:nil
  sgml-validate-command:"rxp -sxV %s %s"
  sgml-parent-document:("PLD-Guide.xml" "book" "section")
  End:
  -->
