--- lib/confutil.c-	Tue Nov 30 20:50:05 1999
+++ lib/confutil.c	Tue Nov 30 20:52:02 1999
@@ -15,6 +15,7 @@
 #include "confutil.h"
 #include "log.h"
 #if defined(SUPPORT_IPV6) && defined(KAME)
+#include <net/if_var.h>
 #include <netinet6/in6_var.h>
 #endif
 
