--- tools/debugger/gdbsx/xg/xg_main.c
+++ tools/debugger/gdbsx/xg/xg_main.c
@@ -34,6 +34,7 @@
* XGTRC(): generic trace utility
*/
+#include <sys/types.h>
#include <stdio.h>
#include <stddef.h>
#include <stdarg.h>