Warranty Information 37
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 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 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
modification follow.
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 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 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
