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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.
GNU GENERAL PUBLIC
LICENSE
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
of any warranty;
and give any other recipients of the Program a copy
of this License
along with the Program.
You may charge a fee for the physical act of
transferring a copy, and
you may at your option offer warranty protection in
exchange for a fee.
2. You may modify your copy or copies of the
Program or any portion
of it, thus forming a work based on the Program, and
copy and
distribute such modifications or work under the terms
of Section 1
above, provided that you also meet all of these
conditions:
a) You must cause the modified files to carry
prominent notices
stating that you changed the files and the date of
any change.
b) You must cause any work that you distribute
or publish, that in
whole or in part contains or is derived from the
Program or any
part thereof, to be licensed as a whole at no
charge to all third
parties under the terms of this License.
c) If the modified program normally reads
commands interactively
when run, you must cause it, when started
running for such
interactive use in the most ordinary way, to print
or display an
announcement including an appropriate
copyright notice and a
notice that there is no warranty (or else, saying
that you provide
a warranty) and that users may redistribute the
program under
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