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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,
b) Accompany it with a written offer, valid for at least
three years, to give any third party, for a charge no
more than your cost of physically performing source
distribution, a complete machine-readable copy of the
corresponding source code, to be distributed under
the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as
to the offer to distribute corresponding source code.
(This alternative is allowed only for noncommercial
distribution and only if you received the program in
object code or executable form with such an offer, in
accord with Subsection b above.)
The source code for a work means the preferred form
of the work for making modifications to it. For an
executable work, complete source code means all the
source code for all modules it contains, plus any
associated interface definition files, plus the scripts
used to control compilation and installation of the
executable. However, as a special exception, the
source code distributed need not include anything that
is normally distributed (in either source or binary
form) with the major components (compiler, kernel,
and so on) of the operating system on which the
executable
runs, unless that component itself accompanies the
executable.
If distribution of executable or object code is made by
offering access to copy from a designated place, then
offering equivalent access to copy the source code
from the same place counts as distribution of the
source code, even though third parties are not
compelled to copy the source along with the object
code.
4. You may not copy, modify, sublicense, or distribute
the Program except as expressly provided under this
License. Any attempt otherwise to copy, modify,
sublicense or distribute the Program is void, and will
automatically terminate your rights under this
License.
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