libc {
  GLIBC_2.2 {
    # Exception handling support functions from libgcc
    __register_frame; __register_frame_table; __deregister_frame;
    __frame_state_for; __register_frame_info_table;
  }
}

librt {
  GLIBC_2.3.3 {
    # Changed timer_t.
    timer_create; timer_delete; timer_getoverrun; timer_gettime;
    timer_settime;
  }
}