https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94270
--- Comment #3 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- Not quite a one-liner, but looks good: diff --git a/gcc/fortran/interface.c b/gcc/fortran/interface.c index 75a50c999b7..8f041f0a0a8 100644 --- a/gcc/fortran/interface.c +++ b/gcc/fortran/interface.c @@ -5317,7 +5317,6 @@ gfc_get_formal_from_actual_arglist (gfc_symbol *sym, s->ts.is_iso_c = 0; s->ts.is_c_interop = 0; s->attr.flavor = FL_VARIABLE; - s->attr.artificial = 1; if (a->expr->rank > 0) { s->attr.dimension = 1; @@ -5332,6 +5331,7 @@ gfc_get_formal_from_actual_arglist (gfc_symbol *sym, s->maybe_array = maybe_dummy_array_arg (a->expr); } s->attr.dummy = 1; + s->attr.artificial = 1; s->declared_at = a->expr->where; s->attr.intent = INTENT_UNKNOWN; (*f)->sym = s; diff --git a/gcc/fortran/trans-decl.c b/gcc/fortran/trans-decl.c index e91a2795762..487e776f5dd 100644 --- a/gcc/fortran/trans-decl.c +++ b/gcc/fortran/trans-decl.c @@ -6072,7 +6072,7 @@ generate_local_decl (gfc_symbol * sym) /* Unused procedure passed as dummy argument. */ if (sym->attr.flavor == FL_PROCEDURE) { - if (!sym->attr.referenced) + if (!sym->attr.referenced && !sym->attr.artificial) { if (warn_unused_dummy_argument) gfc_warning (OPT_Wunused_dummy_argument,