1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/opts.h b/gcc/opts.h
index cffeeba..0848054 100644
--- a/gcc/opts.h
+++ b/gcc/opts.h
@@ -42,5 +42,6 @@ extern const char *const lang_names[];
 #define CL_MISSING_OK		(1 << 27) /* Missing argument OK (joined).  */
 #define CL_UINTEGER		(1 << 28) /* Argument is an integer >=0.  */
 #define CL_COMMON		(1 << 29) /* Language-independent.  */
+#define CL_UNDOCUMENTED		(1 << 30) /* Do not output with --help.  */
 
 #endif