--- curvecp/socket_udp.c.orig 2011-02-21 01:49:34 UTC +++ curvecp/socket_udp.c @@ -6,6 +6,10 @@ #include "socket.h" #include "blocking.h" +#ifndef SOL_IP +#define SOL_IP IPPROTO_IP /* FreeBSD requires protocol number */ +#endif + static void enable_bsd_fragmentation(int fd) { #ifdef IP_DONTFRAG