User's Manual

126
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.