Patch from Shaun Jackman:

Replace uptime with time(NULL). time is more portable than uptime and
eliminates the need to define uptime, reducing code size slightly.

networking/udhcp/common.c

@@ -37,14 +37,6 @@
 
 static int daemonized;
 
-long uptime(void)
-{
-	struct sysinfo info;
-	sysinfo(&info);
-	return info.uptime;
-}
-
-
 /*
  * This function makes sure our first socket calls
  * aren't going to fd 1 (printf badness...) and are