--- ctrl_c.c~1	2003-10-31 01:08:40.000000000 +0000
+++ ctrl_c.c	2004-07-21 20:50:12.000000000 +0000
@@ -75,7 +75,9 @@ __gnat_install_int_handler (void (*proc)
   if (sigint_intercepted == 0)
     {
       act.sa_handler = __gnat_int_handler;
+#ifdef SA_RESTART
       act.sa_flags = SA_RESTART;
+#endif
       sigemptyset (&act.sa_mask);
       sigaction (SIGINT, &act, &original_act);
     }