diff -ur snort-2.0.2/src/util.h snort-2.0.2-gentoo/src/util.h
--- snort-2.0.2/src/util.h	2003-03-27 09:59:30.000000000 +1200
+++ snort-2.0.2-gentoo/src/util.h	2003-10-10 02:11:41.000000000 +1300
@@ -39,6 +39,8 @@
 #include "strlcpyu.h"
 #endif
 
+#include <sys/types.h>
+
 extern u_long netmasks[33];
 
 /* Self preservation memory control struct */