$NetBSD$

--- configure.in.orig	2004-01-12 10:33:19.000000000 +0100
+++ configure.in	2007-03-17 16:52:15.000000000 +0100
@@ -417,6 +417,8 @@ if test "$HAVETK" != "1"; then AC_MSG_ER
 dnl Make sure size_t is defined
 AC_TYPE_SIZE_T
 
+AC_CHECK_HEADERS([sys/types.h])
+
 dnl Make sure u_int32_t is defined for arlib.c
 AC_CHECK_TYPE(u_int32_t,unsigned int)
 
