--- watchdog-5.13.orig/include/extern.h	2013-02-01 12:15:44.000000000 +0100
+++ watchdog-5.13/include/extern.h	2014-03-22 15:41:57.000000000 +0100
@@ -1,5 +1,6 @@
 #include <netinet/in.h>
 #include <stdio.h>
+#include <time.h>
 
 /* external variables */
 extern int softboot, watchdog, temp, maxtemp, tint, lastts, nrts;