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<H2><A NAME="sec:E.2"><SPAN class="sec-nr">E.2</SPAN> <SPAN class="sec-title">Contributing
to the SWI-Prolog project</SPAN></A></H2>
<A NAME="sec:contrib"></A>
<P>To achieve maximal coherence using SWI-Prolog for Free and Non-Free
software we advice the use of the LGPL for contributed foreign code and
the use of the GPL with SWI-Prolog exception for Prolog code for
contributed modules.
<P>As a rule of thumb it is advised to use the above licenses whenever
possible and only use a strict GPL compliant license only if the module
contains other code under strict GPL compliant licenses.
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