--- ulogd-2.0.2.orig/include/linux/tcp.h	1970-01-01 00:00:00.000000000 +0100
+++ ulogd-2.0.2/include/linux/tcp.h	2013-11-11 21:27:31.000000000 +0100
@@ -0,0 +1,34 @@
+struct tcphdr
+  {
+    u_int16_t source;
+    u_int16_t dest;
+    u_int32_t seq;
+    u_int32_t ack_seq;
+#  if __BYTE_ORDER == __LITTLE_ENDIAN
+    u_int16_t res1:4;
+    u_int16_t doff:4;
+    u_int16_t fin:1;
+    u_int16_t syn:1;
+    u_int16_t rst:1;
+    u_int16_t psh:1;
+    u_int16_t ack:1;
+    u_int16_t urg:1;
+    u_int16_t res2:2;
+#  elif __BYTE_ORDER == __BIG_ENDIAN
+    u_int16_t doff:4;
+    u_int16_t res1:4;
+    u_int16_t res2:2;
+    u_int16_t urg:1;
+    u_int16_t ack:1;
+    u_int16_t psh:1;
+    u_int16_t rst:1;
+    u_int16_t syn:1;
+    u_int16_t fin:1;
+#  else
+#   error "Adjust your <bits/endian.h> defines"
+#  endif
+    u_int16_t window;
+    u_int16_t check;
+    u_int16_t urg_ptr;
+};
+