To protect your rights, we need to prevent others from
denying you these rights or asking you to surrender
the rights. Therefore, you have certain responsibilities if
you distribute copies of the software, or if you modify it:
responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program,
whether gratis or for a fee, you must pass on to the
recipients the same freedoms that you received. 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. Developers that use the GNU GPL protect your rights
with two steps: (1) assert copyright on the software, and (2)
offer you this License giving you legal permission to copy,
distribute and/or modify it. For the developers' and authors'
protection, the GPL clearly explains that there is no warranty
for this free software. For both users' and authors' sake, the
GPL requires that modified versions be marked as changed,
so that their problems will not be attributed erroneously to
authors of previous versions. Some devices are designed to
deny users access to install or run modified versions of the
software inside them, although the manufacturer can do so.
This is fundamentally incompatible with the aim of protecting
users' freedom to change the software. The systematic
pattern of such abuse occurs in the area of products
for individuals to use, which is precisely where it is most
unacceptable. Therefore, we have designed this version of
the GPL to prohibit the practice for those products. If such
problems arise substantially in other domains, we stand
ready to extend this provision to those domains in future
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users.
Finally, every program is threatened constantly by software
patents. States should not allow patents to restrict
development and use of software on general-purpose
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anger that patents applied to a free program could make it
ffectively proprietary. To prevent this, the GPL assures that
atents cannot be used to render the program non-free. he
precise terms and conditions for copying, distribution and
modification follow.
terms anD conDitions
0. Definitions.
"This License" refers to version 3 of the GNU General Public
License.
"Copyright" also means copyright-like laws that apply to
other kinds of works, such as semiconductor masks.
"The Program" refers to any copyrightable work licensed
under this License. Each licensee is addressed as "you".
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A "covered work" means either the unmodified Program or a
work based on the Program.
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without permission, would make you directly or secondarily
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to the extent that warranties are provided), that licensees
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1. source code.
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The "Corresponding Source" for a work in object code
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which are used unmodified in performing those activities but
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Source includes interface definition files associated with
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communication or control flow between those subprograms
and other parts of the work.
The Corresponding Source need not include anything that
users can regenerate automatically from other parts of the
Corresponding Source. The Corresponding Source for a
work in source code form is that same work.
2. Basic permissions.
All rights granted under this License are granted for the term
of copyright on the Program, and are irrevocable provided
the stated conditions are met. This License explicitly affirms
your unlimited permission to run the unmodified Program.
The output from running a covered work is covered by this
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You may make, run and propagate covered works that you
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copyright. Those thus making or running the covered works for
you must do so exclusively on your behalf, under your direction
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