User's Manual

29
English
GNU GPLv2
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
can change the software or use pieces of it in new
free programs; and that you know you can do these
things.
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
libelf GPLv2
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
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 modifi cation follow.
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 modifi ed 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 refl ect on the original
authors’ reputations.
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
tr
anslate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
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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
any medium, provided that you conspicuously
and
appropriately publish on each copy an
appropriate
of the Program’s source code as you receive it,
in
Activities other than copying, distribution and
modifi cation 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
the Program or a portion of it, either verbatim or
with modifi cations and/or translated into another
language. (Hereinafter, translation is included
without limitation in the term “modifi cation”.) Each
licensee is addressed as “you”.