diff -u libdnet-1.7/src/fw-ipchains.c libdnet-1.7-patched/src/fw-ipchains.c
--- libdnet-1.7/src/fw-ipchains.c       2002-01-20 16:23:27.000000000 -0500
+++ libdnet-1.7/src/fw-ipchains.c       2004-03-04 16:51:28.000000000 -0500
@@ -12,8 +12,9 @@
 #include <sys/socket.h>
  
 #include <netinet/in.h>
+#include <linux/types.h>
 #include <linux/ip.h>
-#include <linux/tcp.h>
+#include <netinet/tcp.h>
 #include <linux/udp.h>
 #include <linux/icmp.h>
 #include <linux/if.h>