<appendix id="apx-gpl">
<title>GNU General Public License</title>
<para>
Copyright (c) 2000 Free Software Foundation, Inc.
<address>Free Software Foundation, Inc.
<street>59 Temple Place, Suite 330</street>,
<city>Boston</city>,
<state>MA</state> <postcode>02111-1307</postcode>
<country>USA</country>
</address>.
</para>
<para>
This is version 2
</para>
<para>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
</para>
<sect1 id="preamble">
<title>Preamble</title>
<para>
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change
free software - to make sure the software is free for all its users.
This General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit
to using it. (Some other Free Software Foundation software is covered
by the GNU Library General Public License instead.) You can apply it
to your programs, too.
</para>
<para>
When we speak of free software, we are referring to freedom, not price.
Our General Public Licenses are designed to make sure that you have the
freedom to distribute copies of free software (and charge for this
service if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new free
programs; and that you know you can do these things.
</para>
<para>
To protect your rights, we need to make restrictions that forbid anyone
to deny you these rights or to ask you to surrender the rights. These
restrictions translate to certain responsibilities for you if you distribute
copies of the software, or if you modify it.
</para>
<para>
For example, if you distribute copies of such a program, whether gratis or
for a fee, you must give the recipients all the rights that you have. You
must make sure that they, too, receive or can get the source code. And you
must show them these terms so they know their rights.
</para>
<para>
We protect your rights with two steps:
<orderedlist numeration="arabic">
<listitem>
<para>
copyright the software, and
</para>
</listitem>
<listitem>
<para>
offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
</para>
</listitem>
</orderedlist>
</para>
<para>
Also, for each author's protection and ours, we want to make certain that
everyone understands that there is no warranty for this free software. If
the software is modified by someone else and passed on, we want its
recipients to know that what they have is not the original, so that any
problems introduced by others will not reflect on the original authors'
reputations.
</para>
<para>
Finally, any free program is threatened constantly by software patents.
We wish to avoid the danger that redistributors of a free program will
individually obtain patent licenses, in effect making the program
proprietary. To prevent this, we have made it clear that any patent must be
licensed for everyone's free use or not licensed at all.
</para>
<para>
The precise terms and conditions for copying, distribution and modification
follow.
</para>
</sect1>
<sect1 id="terms">
<title>TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</title>
<sect2 id="sect0">
<title>Section 0</title>
<para>
This License applies to any program or other work which contains a notice
placed by the copyright holder saying it may be distributed under the terms
of this General Public License. The "Program", below, refers to any such
program or work, and a <quote>work based on the Program</quote> means either
the Program or any derivative work under copyright law: that is to say, a
work containing the Program or a portion of it, either verbatim or with
modifications and/or translated into another language. (Hereinafter, translation
is included without limitation in the term <quote>modification</quote>.) Each
licensee is addressed as <quote>you</quote>.
</para>
<para>
Activities other than copying, distribution and modification are not covered by
this License; they are outside its scope. The act of running the Program is not
restricted, and the output from the Program is covered only if its contents
constitute a work based on the Program (independent of having been made by running
the Program). Whether that is true depends on what the Program does.
</para>
</sect2>
<sect2 id="sect1">
<title>Section 1</title>
<para>
You may copy and distribute verbatim copies of the Program's source code as you
receive it, in any medium, provided that you conspicuously and appropriately
publish on each copy an appropriate copyright notice and disclaimer of warranty;
keep intact all the notices that refer to this License and to the absence of any
warranty; and give any other recipients of the Program a copy of this License
along with the Program.
</para>
<para>
You may charge a fee for the physical act of transferring a copy, and you may at
your option offer warranty protection in exchange for a fee.
</para>
</sect2>
<sect2 id="sect2">
<title>Section 2</title>
<para>
You may modify your copy or copies of the Program or any portion of it, thus
forming a work based on the Program, and copy and distribute such modifications
or work under the terms of <link linkend="sect1">Section 1</link> above, provided
that you also meet all of these conditions:
<orderedlist numeration="loweralpha">
<listitem>
<para>
You must cause the modified files to carry prominent notices stating that
you changed the files and the date of any change.
</para>
</listitem>
<listitem>
<para>
You must cause any work that you distribute or publish, that in whole or
in part contains or is derived from the Program or any part thereof, to be
licensed as a whole at no charge to all third parties under the terms of
this License.
</para>
</listitem>
<listitem>
<para>
If the modified program normally reads commands interactively when run, you
must cause it, when started running for such interactive use in the most
ordinary way, to print or display an announcement including an appropriate
copyright notice and a notice that there is no warranty (or else, saying
that you provide a warranty) and that users may redistribute the program
under these conditions, and telling the user how to view a copy of this
License.
<note>
<title>Exception:</title>
<para>
If the Program itself is interactive but does not normally print such an
announcement, your work based on the Program is not required to print an
announcement.)
</para>
</note>
</para>
</listitem>
</orderedlist>
</para>
<para>
These requirements apply to the modified work as a whole. If identifiable sections
of that work are not derived from the Program, and can be reasonably considered
independent and separate works in themselves, then this License, and its terms,
do not apply to those sections when you distribute them as separate works. But when
you distribute the same sections as part of a whole which is a work based on the
Program, the distribution of the whole must be on the terms of this License, whose
permissions for other licensees extend to the entire whole, and thus to each and
every part regardless of who wrote it.
</para>
<para>
Thus, it is not the intent of this section to claim rights or contest your rights
to work written entirely by you; rather, the intent is to exercise the right to control
the distribution of derivative or collective works based on the Program.
</para>
<para>
In addition, mere aggregation of another work not based on the Program with the Program
(or with a work based on the Program) on a volume of a storage or distribution medium
does not bring the other work under the scope of this License.
</para>
</sect2>
<sect2 id="sect3">
<title>Section 3</title>
<para>
You may copy and distribute the Program (or a work based on it, under
<link linkend="sect2">Section 2</link> in object code or executable form under the terms of
<link linkend="sect1">Sections 1</link> and <link linkend="sect2">2</link> above provided that
you also do one of the following:
<orderedlist numeration="loweralpha">
<listitem>
<para>
Accompany it with the complete corresponding machine-readable source code, which
must be distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
</para>
</listitem>
<listitem>
<para>
Accompany it with a written offer, valid for at least three years, to give any
third party, for a charge no more than your cost of physically performing source
distribution, a complete machine-readable copy of the corresponding source code,
to be distributed under the terms of Sections and above on a medium customarily
used for software interchange; or,
</para>
</listitem>
<listitem>
<para>
Accompany it with the information you received as to the offer to distribute
corresponding source code. (This alternative is allowed only for noncommercial
distribution and only if you received the program in object code or executable form
with such an offer, in accord with Subsection b above.)
</para>
</listitem>
</orderedlist>
</para>
<para>
The source code for a work means the preferred form of the work for making modifications
to it. For an executable work, complete source code means all the source code for all modules
it contains, plus any associated interface definition files, plus the scripts used to control
compilation and installation of the executable. However, as a special exception, the source
code distributed need not include anything that is normally distributed (in either source or
binary form) with the major components (compiler, kernel, and so on) of the operating system
on which the executable runs, unless that component itself accompanies the executable.
</para>
<para>
If distribution of executable or object code is made by offering access to copy from a
designated place, then offering equivalent access to copy the source code from the same place
counts as distribution of the source code, even though third parties are not compelled to
copy the source along with the object code.
</para>
</sect2>
<sect2 id="sect4">
<title>Section 4</title>
<para>
You may not copy, modify, sublicense, or distribute the Program except as expressly provided
under this License. Any attempt otherwise to copy, modify, sublicense or distribute the
Program 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>
</sect2>
<sect2 id="sect5">
<title>Section 5</title>
<para>
You are not required to accept this License, since you have not signed it. However, nothing
else grants you permission to modify or distribute the Program or its derivative works.
These actions are prohibited by law if you do not accept this License. Therefore, by modifying
or distributing the Program (or any work based on the Program), you indicate your acceptance
of this License to do so, and all its terms and conditions for copying, distributing or
modifying the Program or works based on it.
</para>
</sect2>
<sect2 id="sect6">
<title>Section 6</title>
<para>
Each time you redistribute the Program (or any work based on the Program), the recipient
automatically receives a license from the original licensor to copy, distribute or modify
the Program subject to these terms and conditions. You may not impose any further restrictions
on the recipients' exercise of the rights granted herein. You are not responsible for enforcing
compliance by third parties to this License.
</para>
</sect2>
<sect2 id="sect7">
<title>Section 7</title>
<para>
If, as a consequence of a court judgment or allegation of patent infringement or for any other
reason (not limited to patent issues), conditions are imposed on you (whether by court order,
agreement or otherwise) that contradict the conditions of this License, they do not excuse you
from the conditions of this License. If you cannot distribute so as to satisfy simultaneously
your obligations under this License and any other pertinent obligations, then as a consequence
you may not distribute the Program at all. For example, if a patent license would not permit
royalty-free redistribution of the Program by all those who receive copies directly or
indirectly through you, then the only way you could satisfy both it and this License would be
to refrain entirely from distribution of the Program.
</para>
<para>
If any portion of this section is held invalid or unenforceable under any particular circumstance,
the balance of the section is intended to apply and the section as a whole is intended to apply
in other circumstances.
</para>
<para>
It is not the purpose of this section to induce you to infringe any patents or other property
right claims or to contest validity of any such claims; this section has the sole purpose of
protecting the integrity of the free software distribution system, which is implemented by public
license practices. Many people have made generous contributions to the wide range of software
distributed through that system in reliance on consistent application of that system; it is up
to the author/donor to decide if he or she is willing to distribute software through any other
system and a licensee cannot impose that choice.
</para>
<para>
This section is intended to make thoroughly clear what is believed to be a consequence of the
rest of this License.
</para>
</sect2>
<sect2 id="sect8">
<title>Section 8</title>
<para>
If the distribution and/or use of the Program is restricted in certain countries either by patents
or by copyrighted interfaces, the original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding those countries, so that
distribution is permitted only in or among countries not thus excluded. In such case, this License
incorporates the limitation as if written in the body of this License.
</para>
</sect2>
<sect2 id="sect9">
<title>Section 9</title>
<para>
The Free Software Foundation may publish revised and/or new versions of the General Public 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.
</para>
<para>
Each version is given a distinguishing version number. If the Program specifies a version number of
this License which applies to it and "any later version", you have the option of following the terms
and conditions either of that version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of this License, you may choose any
version ever published by the Free Software Foundation.
</para>
</sect2>
<sect2 id="sect10">
<title>Section 10</title>
<para>
If you wish to incorporate parts of the Program into other free programs whose distribution
conditions are different, write to the author to ask for permission. For software which is copyrighted
by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions
for this. Our decision will be guided by the two goals of preserving the free status of all
derivatives of our free software and of promoting the sharing and reuse of software generally.
</para>
</sect2>
<sect2 id="sect11">
<title>NO WARRANTY</title>
<subtitle>Section 11</subtitle>
<para>
BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT
PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
</para>
</sect2>
<sect2 id="sect12">
<title>Section 12</title>
<para>
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR
ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH
ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
</para>
</sect2>
</sect1>
</appendix>
