$OpenBSD$
--- nidsmodule.c.orig	2004-10-22 17:53:26.000000000 -0400
+++ nidsmodule.c	2004-10-22 17:53:47.000000000 -0400
@@ -20,8 +20,15 @@
 	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA
  */
 
+#include <sys/ioctl.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/time.h>
+#include <sys/types.h>
+
 #include "Python.h"
 #include <sys/socket.h>
+#include <netinet/in_systm.h>
 #include <netinet/in.h>
 #include <netinet/ip.h>
 #include <arpa/inet.h>