User's Manual

118
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 authors 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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 reect 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
modication follow.
Terms & conditions for copying, distribution, & modication
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 modications and/or translated into another language.
(Hereinafter, translation is included without limitation in the term
“modication”.) Each licensee is addressed as “you”.
Activities other than copying, distribution and modi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