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to it. For a library, 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 library.
Activities other than copying, distribution and modification are not covered by this
License; they are outside its scope. The act of running a program using the Library is
not restricted, and output from such a program is covered only if its contents constitute a
work based on the Library (independent of the use of the Library in a tool for writing it).
Whether that is true depends on what the Library does and what the program that uses the
Library does.
1. You may copy and distribute verbatim copies of the Library ' s complete 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 distribute a
copy of this License along with the Library.
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 Library or any portion of it, thus forming a
work based on the Library, and copy and distribute such modifi cations or work under the
terms of Section 1 above, provided that you also meet all of these conditions:
a) The modifi ed work must itself be a software library.
b) You must cause the files modified to carry prominent notices stating that you
changed the fi les and the date of any change.
c) You must cause the whole of the work to be licensed at no charge to all third
parties under the terms of this License.
d) If a facility in the modified Library refers to a function or a table of data to be
supplied by an application program that uses the facility, other than as an argument
passed when the facility is invoked, then you must make a good faith effort to ensure
that, in the event an application does not supply such function or table, the facility
still operates, and performs whatever part of its purpose remains meaningful.
(For example, a function in a library to compute square roots has a purpose that
is entirely well-defined independent of the application. Therefore, Subsection 2d
requires that any application-supplied function or table used by this function must
be optional: if the application does not supply it, the square root function must still
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