Hi, I believe that the license is GPLv3, not LGPL-2.1, see: http://www.ccp4.ac.uk/cvs/viewvc.cgi/ssm/COPYING?revision=1.3&view=markup Older revisions of that file shows that it had other awkward licenses in the past, but not LGPL-2.1 (as far as I can see). Cheers. -- Manuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>