--- linux_ip_icmp.h.orig	2011-02-05 21:08:31.000000000 +0100
+++ linux_ip_icmp.h		2011-02-05 21:13:01.000000000 +0100
@@ -3,6 +3,8 @@
 #ifndef _netinet_ip_icmp_h
 #define _netinet_ip_icmp_h
 
+#include <netinet/ip.h>
+
 struct icmp {
 	u_char	icmp_type;		/* type of message, see below */
 	u_char	icmp_code;		/* type sub code */
@@ -22,6 +24,7 @@
 #define	icmp_seq	icmp_hun.ih_idseq.icd_seq
 #define	icmp_void	icmp_hun.ih_void
 
+#if 0
 struct ip {
         u_char  ip_hl:4,                /* header length */
         ip_v:4;                 /* version */
@@ -36,6 +39,7 @@
         u_short ip_sum;                 /* checksum */
         struct  in_addr ip_src,ip_dst;  /* source and dest address */
       };
+#endif
 
 
 	union {