Third party terms
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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. 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.
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