--- gcc/config/m88kluna.h	2018/04/24 17:51:32	1.1
+++ gcc/config/m88kluna.h	2018/04/24 17:58:54	1.1.1.2
@@ -25,6 +25,7 @@ the Free Software Foundation, 675 Mass A
 #define MACH
 #endif
 #define DBX_DEBUGGING_INFO
+#define DEFAULT_GDB_EXTENSIONS 0
 
 #include "aoutos.h"
 #include "m88k.h"