contrib/chg/chg.c

--- a/contrib/chg/chg.c	Wed Jun 29 22:48:32 2016 +0800
+++ b/contrib/chg/chg.c	Tue Jun 28 22:39:06 2016 +0900
@@ -381,7 +381,7 @@
 	abortmsgerrno("failed to handle stop signal");
 }
 
-static void handlechildsignal(int sig)
+static void handlechildsignal(int sig UNUSED_)
 {
 	if (peerpid == 0 || pagerpid == 0)
 		return;