http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51995
--- Comment #7 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-01-25 12:47:49 UTC --- The problem seems to be the following: One properly calls match_typebound_call, which sets "base" (alias "primary") to the symtree of "db_connect" (which is of type BT_CLASS). Then it calls: gfc_match_varspec (primary=0x16cf3d0, equiv_flag=0, sub_flag=true, ppc_arg=true) There, the problem is that one has: sym = sym->ts.u.derived; if (sym->f2k_derived) But "sym" is only the class container. One needs sym->components->ts.u.derived->f2k_derived. One could simply do: --- a/gcc/fortran/primary.c +++ b/gcc/fortran/primary.c @@ -1911 +1911,2 @@ gfc_match_varspec (gfc_expr *primary, int equiv_flag, - sym = sym->ts.u.derived; + sym = (sym->ts.type == BT_CLASS) ? CLASS_DATA (sym)->ts.u.derived + : sym->ts.u.derived; But that will fail later with internal compiler error: in gfc_conv_component_ref, at fortran/trans-expr.c:1100
