diff --git a/external/gpl3/gcc/dist/gcc/c-family/c-format.c b/external/gpl3/gcc/dist/gcc/c-family/c-format.c
index ddd489377683..78725c0bf00c 100644
--- a/external/gpl3/gcc/dist/gcc/c-family/c-format.c
+++ b/external/gpl3/gcc/dist/gcc/c-family/c-format.c
@@ -833,31 +833,31 @@ static const format_kind_info format_types_orig[] =
   },
   { "gcc_diag",   gcc_diag_length_specs,  gcc_diag_char_table, "q+#", NULL,
     gcc_diag_flag_specs, gcc_diag_flag_pairs,
-    FMT_FLAG_ARG_CONVERT,
+    FMT_FLAG_ARG_CONVERT|FMT_FLAG_M_OK,
     0, 0, 'p', 0, 'L', 0,
     NULL, &integer_type_node
   },
   { "gcc_tdiag",   gcc_tdiag_length_specs,  gcc_tdiag_char_table, "q+#", NULL,
     gcc_tdiag_flag_specs, gcc_tdiag_flag_pairs,
-    FMT_FLAG_ARG_CONVERT,
+    FMT_FLAG_ARG_CONVERT|FMT_FLAG_M_OK,
     0, 0, 'p', 0, 'L', 0,
     NULL, &integer_type_node
   },
   { "gcc_cdiag",   gcc_cdiag_length_specs,  gcc_cdiag_char_table, "q+#", NULL,
     gcc_cdiag_flag_specs, gcc_cdiag_flag_pairs,
-    FMT_FLAG_ARG_CONVERT,
+    FMT_FLAG_ARG_CONVERT|FMT_FLAG_M_OK,
     0, 0, 'p', 0, 'L', 0,
     NULL, &integer_type_node
   },
   { "gcc_cxxdiag",   gcc_cxxdiag_length_specs,  gcc_cxxdiag_char_table, "q+#", NULL,
     gcc_cxxdiag_flag_specs, gcc_cxxdiag_flag_pairs,
-    FMT_FLAG_ARG_CONVERT,
+    FMT_FLAG_ARG_CONVERT|FMT_FLAG_M_OK,
     0, 0, 'p', 0, 'L', 0,
     NULL, &integer_type_node
   },
   { "gcc_gfc", gcc_gfc_length_specs, gcc_gfc_char_table, "q+#", NULL,
     gcc_gfc_flag_specs, gcc_gfc_flag_pairs,
-    FMT_FLAG_ARG_CONVERT,
+    FMT_FLAG_ARG_CONVERT|FMT_FLAG_M_OK,
     0, 0, 0, 0, 0, 0,
     NULL, NULL
   },