User's Manual

115
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 eect 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 the Program). Whether that
is true depends on what the Program does.
1. 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 appropriately
publish on each copy an appropriate 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 recipients of the Program a copy of this
License along with the Program.