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-rw-r--r--gcc/fortran/trans-decl.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/fortran/trans-decl.c b/gcc/fortran/trans-decl.c
index c2c5d9d..a113f08 100644
--- a/gcc/fortran/trans-decl.c
+++ b/gcc/fortran/trans-decl.c
@@ -2687,6 +2687,11 @@ create_function_arglist (gfc_symbol * sym)
&& (!f->sym->attr.proc_pointer
&& f->sym->attr.flavor != FL_PROCEDURE))
DECL_BY_REFERENCE (parm) = 1;
+ if (f->sym->attr.optional)
+ {
+ gfc_allocate_lang_decl (parm);
+ GFC_DECL_OPTIONAL_ARGUMENT (parm) = 1;
+ }
gfc_finish_decl (parm);
gfc_finish_decl_attrs (parm, &f->sym->attr);