2012-03-03  Tobias Burnus  <burnus@net-b.de>

        * lang.opt (Wc-binding-type): New flag.
        * options.c (gfc_init_options, gfc_handle_option): Handle it.
        * invoke.texi (Wc-binding-type): Document it.
        * gfortran.h (gfc_option_t): Add warn_c_binding_type.
        * decl.c (verify_bind_c_sym): Handle -Wc-binding-type.
        * symbol.c (gfc_set_default_type, verify_bind_c_derived_type):
        Ditto.

2012-03-03  Tobias Burnus  <burnus@net-b.de>

        * gfortran.dg/bind_c_dts_4.f03: Add dg-options -Wc-binding-type.
        * gfortran.dg/bind_c_implicit_vars.f03: Ditto.
        * gfortran.dg/bind_c_usage_8.f03: Ditto.
        * gfortran.dg/c_kind_tests_2.f03: Ditto.
        * gfortran.dg/class_30.f90: Remove dg-warning line.
        * gfortran.dg/bind_c_usage_25.f90: New.

From-SVN: r184858