libc {

  GLIBC_2.2 {

    # XXX

    __vm_deallocate; __mach_port_insert_right; __mach_reply_port;

    __mig_init; __vm_allocate; __mach_port_allocate;

    # functions used in inline functions or macros

    __pthread_spin_destroy; __pthread_spin_init; __pthread_spin_lock;

    _pthread_spin_lock; __pthread_spin_trylock; __pthread_spin_unlock;

    # p*

    pthread_spin_destroy; pthread_spin_init; pthread_spin_lock;

    pthread_spin_trylock; pthread_spin_unlock;

  }

}