CeCILL-C
Like the LGPL, CeCILL-C is a so called moderately copyleft licence initiated in France by INRIA, CEA and CNRS. It has a working value in EN/FR. It is widely compatible, since only the specific files source code must stay covered, and not the other files or components of a solution. It is therefore designed for components or libraries. Governed by French law. All disputes referred to the court in Paris. CeCILL is one of the licences to be used (authorised) by French administrations.