Index: dbutils.c
--- dbutils.c.orig	2016-12-27 06:49:50.000000000 +0100
+++ dbutils.c	2017-02-18 18:21:10.899885000 +0100
@@ -21,6 +21,7 @@
 #include <unistd.h>
 #include <time.h>
 #include <sys/time.h>
+#include <netinet/in.h>
 
 #include "repmgr.h"
 #include "config.h"