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Additional Information
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 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 these conditions,
and telling the user how to view a copy of this
License. (Exception: if the Program itself is
interactive but does not normally print such an
announcement, your work based on the Program is
not required to print an announcement.)
These requirements apply to the modified work as
a whole. If identifiable sections of that work are not
derived from the Program, and can be reasonably
considered independent and separate works in
themselves, then this License, and its terms, do
not apply to those sections when you distribute
them as separate works. But when you distribute
the same sections as part of a whole which is a
work based on the Program, the distribution of the
whole must be on the terms of this License, whose
permissions for other licensees extend to the entire
whole, and thus to each and every part regardless
of who wrote it.
Thus, it is not the intent of this section to claim
rights or contest your rights to work written entirely
by you; rather, the intent is to exercise the right to
control the distribution of derivative or collective
works based on the Program.
In addition, mere aggregation of another work not
based on the Program with the Program (or with
a work based on the Program) on a volume of a
storage or distribution medium does not bring the
other work under the scope of this License.
3. You may copy and distribute the Program (or a
work based on it, under Section 2) in object code
or executable form under the terms of Sections 1
and 2 above provided that you also do one of the
following:
a) Accompany it with the complete corresponding
machine-readable source code, which must be
distributed under the terms of Sections 1 and 2
above on a medium customarily used for software
interchange; or,