GNU General Public Licence
greater number of people to use a large body of free software. For example, permission to
use the GNU C Library in non-free programs enables many more people to use the whole
GNU operating system, as well as its variant, the GNU/Linux operating system.
Although the Lesser General Public License is Less protective of the users' freedom, it
does ensure that the user of a program that is linked with the Library has the freedom and
the wherewithal to run that program using a modifi ed version of the Library.
The precise terms and conditions for copying, distribution and modifi cation follow. Pay
close attention to the difference between a „work based on the library" and a „work that
uses the library". The former contains code derived from the library, whereas the latter
must be combined with the library in order to run.
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License Agreement applies to any software library or other program which contains
a notice placed by the copyright holder or other authorized party saying it may be distribut-
ed under the terms of this Lesser General Public License (also called „this License"). Each
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A „library" means a collection of software functions and/or data prepared so as to be con-
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The „Library", below, refers to any such software library or work which has been distribu-
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language. (Hereinafter, translation is included without limitation in the term „modifi cation".)
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contains, plus any associated interface defi nition fi les, plus the scripts used to control
compilation and installation of the library.
Activities other than copying, distribution and modifi cation 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
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1. You may copy and distribute verbatim copies of the Library's complete source code as
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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 fi les modifi ed 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 modifi ed Library refers to a function or a table of data to be supplied by
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(For example, a function in a library to compute square roots has a purpose that is entirely
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