-void tcp_timer_2msl __P((void *xtp));
-void tcp_timer_keep __P((void *xtp));
-void tcp_timer_persist __P((void *xtp));
-void tcp_timer_rexmt __P((void *xtp));
-void tcp_timer_delack __P((void *xtp));
+void tcp_timer_2msl(void *xtp);
+void tcp_timer_keep(void *xtp);
+void tcp_timer_persist(void *xtp);
+void tcp_timer_rexmt(void *xtp);
+void tcp_timer_delack(void *xtp);