compat_50_sys_pselect
{ SYS_compat_50_pselect, 0, (sy_call_t *)compat_50_sys_pselect },
check_syscall_args(compat_50_sys_pselect)
int compat_50_sys_pselect(struct lwp *, const struct compat_50_sys_pselect_args *, register_t *);