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-rw-r--r--gcc/fortran/interface.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/fortran/interface.c b/gcc/fortran/interface.c
index 9a19fa7..9a0ccf8 100644
--- a/gcc/fortran/interface.c
+++ b/gcc/fortran/interface.c
@@ -4793,6 +4793,9 @@ gfc_find_specific_dtio_proc (gfc_symbol *derived, bool write, bool formatted)
gfc_typebound_proc *tb_io_proc, *specific_proc;
bool t = false;
+ if (!derived || derived->attr.flavor != FL_DERIVED)
+ return NULL;
+
/* Try to find a typebound DTIO binding. */
if (formatted == true)
{