License agreement
This library is copyright by N. Cardiel and J. Gorgas.
The software is provided "as is" without any express or implied warranty.
You can redistribute it and/or modify it under the terms of
the GNU General Public License as published by
the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version. If you wish to incorporate parts of the programs into other programs
whose distribution conditions are different, write to the authors to ask for
permission.