diff -up nut-2.2.1/include/common.h.netdb nut-2.2.1/include/common.h
--- nut-2.2.1/include/common.h.netdb	2008-01-28 03:12:22.000000000 +0100
+++ nut-2.2.1/include/common.h	2008-01-28 03:12:47.000000000 +0100
@@ -38,6 +38,8 @@
 #include <syslog.h>
 #include <unistd.h>
 #include <assert.h>
+#define __USE_GNU
+#include <netdb.h>
 
 #include "timehead.h"
 #include "attribute.h"