2013-05-28  Dominique d'Humieres  <dominiq@lps.ens.fr>

        PR fortran/57435
        * module.c (check_for_ambiguous): Avoid null pointer deref.

2013-05-28  Tobias Burnus  <burnus@net-b.de>

        PR fortran/57435

From-SVN: r199382