idtype_t
int __waitid(idtype_t, id_t, siginfo_t *, int);
__waitid(idtype_t idtype, id_t id, siginfo_t *info, int flags)
kern_wait(idtype_t idtype, id_t id, int *status, int options,
idtype_t idtype;
idtype_t idtype;
int kern_wait(idtype_t idtype, id_t id, int *status, int options,
int procctl(idtype_t idtype, id_t id, int cmd, void *arg);
idtype_t idtype; char idtype_[PAD_(idtype_t)];
idtype_t idtype; char idtype_[PAD_(idtype_t)];
int waitid(idtype_t, id_t, siginfo_t *, int);
pid_t wait6(idtype_t, id_t, int *, int, struct __wrusage *,