libtool and it's source code are covered under two separate licenses.
- GPL and GFDL
The entire code base may be distributed under the terms of the GNU General
Public License (GPL), which appears immediately below.
The complete text of the GNU Free Documentation License (GFDL)
appears at the bottom of this file.

---------------------------------------------------------------------------
		    GNU GENERAL PUBLIC LICENSE
		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

			    Preamble

  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 Lesser General Public License instead.)  You can apply it to
your programs, too.

  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.

  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.

  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.

  We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.

  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.

  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.

  The precise terms and conditions for copying, distribution and
modification follow.

		    GNU GENERAL PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. 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 "work based on the Program"
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 "modification".)  Each licensee is addressed as "you".

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.

  1. 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.

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.

  2. 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 Section 1
above, provided that you also meet all of these conditions:

    a) You must cause the modified files to carry prominent notices
    stating that you changed the files and the date of any change.

    b) 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.

    c) 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.  (Exception: 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.)

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.

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.

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.

  3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:

    a) 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,

    b) 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 1 and 2 above on a medium
    customarily used for software interchange; or,

    c) 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.)

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
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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.

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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

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.

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.

This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.

  8. 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.

  9. 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.

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.

  10. 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.

			    NO WARRANTY

  11. 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.

  12. 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.

		     END OF TERMS AND CONDITIONS

	    How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:

    Gnomovision version 69, Copyright (C) year name of author
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989
  Ty Coon, President of Vice

This General Public License does not permit incorporating your program into
proprietary programs.  If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

---------------------------------------------------------------------------

                   GNU Free Documentation License
                      Version 1.3, 3 November 2008

 Copyright © 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. 
<http://fsf.org/>

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

0. PREAMBLE
The purpose of this License is to make a manual, textbook, or other functional
 and useful document "free" 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.

This License is a kind of "copyleft", 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.

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.

1. 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
 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 "Document", below, refers to any
 such manual or work. Any member of the public is a licensee, and is
 addressed as "you". You accept the license if you copy, modify or distribute
 the work in a way requiring permission under copyright law.

A "Modified Version" 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.

A "Secondary Section" 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.

The "Invariant Sections" 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.

The "Cover Texts" 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.

A "Transparent" 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 "Transparent" is called
 "Opaque".

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.

The "Title Page" 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, "Title Page" means the text near the most prominent
 appearance of the work's title, preceding the beginning of the body of the
 text.

The "publisher" means any person or entity that distributes copies of the
 Document to the public.

A section "Entitled XYZ" 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 "Acknowledgements", "Dedications",
 "Endorsements", or "History".) To "Preserve the Title" of such a section
 when you modify the Document means that it remains a section "Entitled XYZ"
 according to this definition.

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.

2. VERBATIM COPYING
You may copy and distribute the Document 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 section 3.

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

3. COPYING IN QUANTITY
If you publish printed copies (or copies in media that commonly have printed
 covers) of the Document, numbering more than 100, and the Document's license
 notice requires Cover Texts, 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.

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.

If you publish or distribute Opaque copies of the Document numbering more
 than 100, you must either include a machine-readable Transparent 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.

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.

4. MODIFICATIONS
You may copy and distribute a Modified Version of the Document under the
 conditions of sections 2 and 3 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:

A. 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.
B. 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.
C. State on the Title page the name of the publisher of the Modified Version,
 as the publisher.
D. Preserve all the copyright notices of the Document.
E. Add an appropriate copyright notice for your modifications adjacent to the
 other copyright notices.
F. 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.
G. Preserve in that license notice the full lists of Invariant Sections and
 required Cover Texts given in the Document's license notice.
H. Include an unaltered copy of this License.
I. 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.
J. 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. 
hese 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.
K. 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.
L. 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.
M. Delete any section Entitled "Endorsements". Such a section may not be
 included in the Modified Version.
N. Do not retitle any existing section to be Entitled "Endorsements" or to
 conflict in title with any Invariant Section.
O. Preserve any Warranty Disclaimers.
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.

5. 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".

6. 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.

7. 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.

8. 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.

9. TERMINATION
You may not copy, modify, sublicense, or distribute the Document except as
 expressly provided under this License. Any attempt otherwise to copy,
 modify, sublicense, or distribute it is void, and will automatically
 terminate your rights under this License.

However, if you cease all violation of this License, then your license from a
 particular copyright holder is reinstated (a) provisionally, unless and
 until the copyright holder explicitly and finally terminates your license,
 and (b) permanently, if the copyright holder fails to notify you of the
 violation by some reasonable means prior to 60 days after the cessation.

Moreover, your license from a particular copyright holder is reinstated
 permanently if the copyright holder notifies you of the violation by some
 reasonable means, this is the first time you have received notice of
 violation of this License (for any work) from that copyright holder, and you
 cure the violation prior to 30 days after your receipt of the notice.

Termination of your rights under this section does not terminate the licenses
 of parties who have received copies or rights from you under this License.
 If your rights have been terminated and not permanently reinstated, receipt
 of a copy of some or all of the same material does not give you any rights
 to use it.

10. 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 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. If the Document specifies that a proxy can decide
 which future versions of this License can be used, that proxy's public
 statement of acceptance of a version permanently authorizes you to choose
 that version for the Document.

11. RELICENSING
"Massive Multiauthor Collaboration Site" (or "MMC Site") means any World Wide
 Web server that publishes copyrightable works and also provides prominent
 facilities for anybody to edit those works. A public wiki that anybody can
 edit is an example of such a server. A "Massive Multiauthor
 Collaboration" (or "MMC") contained in the site means any set of
 copyrightable works thus published on the MMC site.

"CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0 license
 published by Creative Commons Corporation, a not-for-profit corporation with
 a principal place of business in San Francisco, California, as well as
 future copyleft versions of that license published by that same organization.

"Incorporate" means to publish or republish a Document, in whole or in part,
 as part of another Document.

An MMC is "eligible for relicensing" if it is licensed under this License,
 and if all works that were first published under this License somewhere
 other than this MMC, and subsequently incorporated in whole or in part into
 the MMC, (1) had no cover texts or invariant sections, and (2) were thus
 incorporated prior to November 1, 2008.

The operator of an MMC Site may republish an MMC contained in the site under
 CC-BY-SA on the same site at any time before August 1, 2009, provided the
 MMC is eligible for relicensing.

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:

    Copyright (C)  YEAR  YOUR NAME.
    Permission is granted to copy, distribute and/or modify this document
    under the terms of the GNU Free Documentation License, Version 1.3
    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".
If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
 replace the "with … Texts." line with this:

    with the Invariant Sections being LIST THEIR TITLES, with the
    Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
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.
