libc {
  GLIBC_2.0 {
    # Unfortunately in wider use.
    _inb; _inw; _inl; _outb; _outw; _outl; _bus_base; _bus_base_sparse;
    _hae_shift;

    # Exception handling support functions from libgcc
    __register_frame; __register_frame_table; __deregister_frame;
    __register_frame_info; __deregister_frame_info; __frame_state_for;
    __register_frame_info_table;

    # b*
    bus_base; bus_base_sparse;

    # h*
    hae_shift;

    # i*
    inb; inl; inw; ioperm; iopl;

    # o*
    outb; outl; outw;

    # p*
    pciconfig_read; pciconfig_write; sethae;
  }
  GLIBC_2.1 {
    # Linux/Alpha 64-bit timeval functions.
    __select; select;
    adjtime; adjtimex; __adjtimex;
    __gettimeofday;

    # glob interface change
    glob; globfree;

    # limit type change
    getrusage;

    # time type change
    gettimeofday;

    # i*
    ieee_get_fp_control; ieee_set_fp_control;

    # s*
    setitimer; settimeofday;

    # u*
    utimes;

    # w*
    wait4;
  }
  GLIBC_2.1.1 {
    getitimer;
  }
  GLIBC_2.1.4 {
    pciconfig_iobase;
  }
}