--- cutter.c.orig 2012-01-03 01:56:39.947717501 +0100 +++ cutter.c 2012-01-03 01:56:57.135716889 +0100 @@ -57,6 +57,7 @@ #include #include #include +#include #define ETHHDR sizeof(struct ethhdr) #define TCPHDR sizeof(struct tcphdr)