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Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim
copies of this license document, but changing it is not allowed.
0. 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 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 modi-
fied 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.
1. TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND
MODIFICATION
1. 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 pro-
gram 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
63
Generalbeen made by
constitute a work based on the ProgramAppendix H. GNUhaving Public License
(independent of
running the Program). Whether that is true depends on what the Program does.
2. 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 appropri- [ Pobierz całość w formacie PDF ]

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