__align64
int64_t __align64; /*%< 64bit alignment */
u_short ifam_msglen __align64;
u_short ifm_msglen __align64;
struct if_data ifm_data __align64;
u_short ifam_msglen __align64;
u_short ifan_msglen __align64;
u_short rtm_msglen __align64;
struct rt_metrics rtm_rmx __align64;