--- roverpingd/send.c.orig	2006-01-30 04:12:24.000000000 -0800
+++ roverpingd/send.c	2014-12-01 22:26:52.000000000 -0800
@@ -32,6 +32,7 @@
 static int nodes_pinged = 0;
 static time_t ping_list_start_time;
 
+void set_alarm_itimer(time_t when_sec, time_t delta_ms);
 /*------------------------------------------------------------------*/
 
 void send_pings()
@@ -168,9 +169,7 @@
 
 /*------------------------------------------------------------------*/
 
-set_alarm_itimer(when_sec,delta_ms)
-time_t when_sec;
-time_t delta_ms;
+void set_alarm_itimer(time_t when_sec, time_t delta_ms)
 {
   time_t now;
   struct itimerval timer_time, old_timer_time;