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authorKarl Berry <karl@freefriends.org>2020-05-20 21:38:45 +0000
committerKarl Berry <karl@freefriends.org>2020-05-20 21:38:45 +0000
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-<?xml version="1.0"?>
-<!DOCTYPE chapter PUBLIC "+//Silmaril//DTD DocBook 5.0//EN"
- "/dtds/docbook/docbook-5.0/dtd/docbook.dtd" [
-<!ENTITY TeX "\TeX{}">
-<!ENTITY LaTeX "\LaTeX{}">
-<!ENTITY LaTeX3 "\LaTeX{3}">
-<!ENTITY mdash "~--- ">
-<!ENTITY nbsp "~">
-]>
-<chapter xml:id="LPPL:LPPL" version="1.3c" xml:lang="en:US"
- revision="2008-05-04" annotations="Copyright 1999, 2002--2008
- &LaTeX3; Project">
- <title>The &LaTeX; Project Public License</title>
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- <para>The &LaTeX; Project Public License (<acronym>LPPL</acronym>)
- is the primary license under which the &LaTeX; kernel and the
- base &LaTeX; packages are distributed.</para>
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- may distribute a Compiled Work generated from a Derived
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- linkend="LPPL:item:conditions"/>, above, are met
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- <listitem>
- <para>The conditions above are not intended to prohibit, and
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- any component so that it becomes identical to an updated
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- linkend="LPPL:item:currmaint"/>, above.</para>
- </listitem>
- <listitem>
- <para>Distribution of the Work or any Derived Work in an
- alternative format, where the Work or that Derived Work (in
- whole or in part) is then produced by applying some process
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- this license as they pertain to the results of applying that
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- or said author or said other party has been advised of the
- possibility of such damages.</para>
- </sect1>
- <sect1 xml:id="LPPL:Maintenance">
- <title>Maintenance of The Work</title>
- <para>The Work has the status <phrase>author-maintained</phrase>
- if the Copyright Holder explicitly and prominently states near
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- <para>The Work changes from status <phrase>maintained</phrase> to
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- of active maintenance.</para>
- <para>You can become the Current Maintainer of the Work by
- agreement with any existing Current Maintainer to take over this
- role.</para>
- <para>If the Work is unmaintained, you can become the Current
- Maintainer of the Work through the following steps:</para>
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- through the means of an Internet or similar search.</para>
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- Work is still maintained.</para>
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- <listitem xml:id="LPPL:item:change">
- <para>If you make an <phrase>intention announcement</phrase>
- as described in&nbsp;<xref
- linkend="LPPL:item:intention"/> above and after three
- months your intention is challenged neither by the Current
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- <para>If the previously unreachable Current Maintainer becomes
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- linkend="LPPL:item:announce"/>
- or&nbsp;<xref linkend="LPPL:item:change"/>, then that
- Current
- Maintainer must become or remain the Current Maintainer upon
- request provided they then update their communication data
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- <para>A change in the Current Maintainer does not, of itself,
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- above.</para>
- </sect1>
- <sect1 xml:id="LPPL:Distribute">
- <title>Whether and How to Distribute Works under This
- License</title>
- <para>This section contains important instructions, examples, and
- recommendations for authors who are considering distributing
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- <wordasword>you</wordasword> in this section.</para>
- <sect2 xml:id="LPPL:Choosing">
- <title>Choosing This License or Another License</title>
- <para>If for any part of your work you want or need to use
- <emphasis>distribution</emphasis> conditions that differ
- significantly from those in this license, then do not refer to
- this license anywhere in your work but, instead, distribute
- your work under a different license. You may use the text of
- this license as a model for your own license, but your license
- should not refer to the <acronym>LPPL</acronym> or otherwise
- give the impression that your work is distributed under the
- <acronym>LPPL</acronym>.</para>
- <para>The document <filename
- xlink:type="tex">modguide</filename> in the base &LaTeX;
- distribution explains the motivation behind the conditions of
- this license. It explains, for example, why distributing
- &LaTeX; under the <acronym>GNU</acronym> General Public
- License (<acronym>GPL</acronym>) was considered inappropriate.
- Even if your work is unrelated to &LaTeX;, the discussion in
- <filename xlink:type="tex">modguide</filename> may still be
- relevant, and authors intending to distribute their works
- under any license are encouraged to read it.</para>
- </sect2>
- <sect2 xml:id="LPPL:WithoutDistribution">
- <title>A Recommendation on Modification Without
- Distribution</title>
- <para>It is wise never to modify a component of the Work, even
- for your own personal use, without also meeting the above
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- conditions of this license in ways that could have legal
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- </sect2>
- <sect2 xml:id="LPPL:HowTo">
- <title>How to Use This License</title>
- <para>To use this license, place in each of the components of
- your work both an explicit copyright notice including your
- name and the year the work was authored and/or last
- substantially modified. Include also a statement that the
- distribution and/or modification of that component is
- constrained by the conditions in this license.</para>
- <para>Here is an example of such a notice and statement:</para>
- <programlisting>
-%%% pig.dtx
-%%% Copyright 2005 M. Y. Name
-%%
-%% This work may be distributed and/or modified under the
-%% conditions of the LaTeX Project Public License, either version 1.3
-%% of this license or (at your option) any later version.
-%% The latest version of this license is in
-%% http://www.latex-project.org/lppl.txt
-%% and version 1.3 or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
-%%
-%% This work has the LPPL maintenance status `maintained'.
-%%
-%% The Current Maintainer of this work is M. Y. Name.
-%%
-%% This work consists of the files pig.dtx and pig.ins
-%% and the derived file pig.sty.
- </programlisting>
- <para>Given such a notice and statement in a file, the
- conditions given in this license document would apply, with
- the <wordasword>Work</wordasword> referring to the three files
- <filename xlink:type="dtx">pig</filename>, <filename
- xlink:type="ins">pig</filename>, and <filename
- xlink:type="sty">pig</filename> (the last being generated
- from <filename xlink:type="dtx">pig</filename> using <filename
- xlink:type="ins">pig</filename>), the <phrase>Base
- Interpreter</phrase> referring to any
- <phrase>&LaTeX;-Format</phrase>, and both <phrase>Copyright
- Holder</phrase> and <phrase>Current Maintainer</phrase>
- referring to the person
- <personname>M.&nbsp;Y.&nbsp;Name</personname>.</para>
- <para>If you do not want the Maintenance section of
- <acronym>LPPL</acronym> to apply to your Work, change
- <wordasword>maintained</wordasword> above into
- <phrase>author-maintained</phrase>. However, we recommend that
- you use <wordasword>maintained</wordasword> as the Maintenance
- section was added in order to ensure that your Work remains
- useful to the community even when you can no longer maintain
- and support it yourself.</para>
- </sect2>
- <sect2 xml:id="LPPL:NotReplacements">
- <title>Derived Works That Are Not Replacements</title>
- <para>Several clauses of the <acronym>LPPL</acronym> specify
- means to provide reliability and stability for the user
- community. They therefore concern themselves with the case
- that a Derived Work is intended to be used as a (compatible or
- incompatible) replacement of the original Work. If this is not
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- completely different task), then clauses 6b and 6d shall not
- apply.</para>
- </sect2>
- <sect2 xml:id="LPPL:Recommendations">
- <title>Important Recommendations</title>
- <sect3>
- <title>Defining What Constitutes the Work</title>
- <para>The <acronym>LPPL</acronym> requires that distributions
- of the Work contain all the files of the Work. It is
- therefore important that you provide a way for the licensee
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- using a line such as:</para>
- <programlisting>
-%% This work consists of all files listed in manifest.txt.
- </programlisting>
- <para>in that place. In the absence of an unequivocal list it
- might be impossible for the licensee to determine what is
- considered by you to comprise the Work and, in such a case,
- the licensee would be entitled to make reasonable
- conjectures as to which files comprise the Work.</para>
- </sect3>
- </sect2>
- </sect1>
-</chapter>