--- Gnu-Mach/kern/ipc_tt.c	2020/09/02 04:49:54	1.1.1.6
+++ Gnu-Mach/kern/ipc_tt.c	2020/09/02 04:52:00	1.1.1.7
@@ -818,7 +818,7 @@ mach_ports_register(
 	mach_msg_type_number_t	portsCnt)
 {
 	ipc_port_t ports[TASK_PORT_REGISTER_MAX];
-	int i;
+	unsigned i;
 
 	if ((task == TASK_NULL) ||
 	    (portsCnt > TASK_PORT_REGISTER_MAX))