$OpenBSD: patch-configure_in,v 1.5 2013/06/17 19:30:22 ajacoutot Exp $
--- configure.in.orig	Wed Oct 10 13:18:49 2012
+++ configure.in	Thu Jan  3 11:02:29 2013
@@ -1916,6 +1916,7 @@ if test $ol_enable_wrappers != no ; then
 		save_LIBS="$LIBS"
 		LIBS="$LIBS -lwrap"
 		AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/types.h>
 #include <tcpd.h>
 int allow_severity = 0;
 int deny_severity  = 0;
