User's Manual

119
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 authorʼs protection and ours, we want
to make certain that everyone understands that there
is no warranty for this free software. If the software
is modified 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 authorsʼ 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 everyoneʼs free use or
not licensed at all.
The precise terms and conditions for copying,
distribution and modification follow.
Terms & conditions for copying, distribution, &
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 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