libc {

  GLIBC_2.10 {

    # e*

    endsgent;

    # f*

    fgetsgent; fgetsgent_r;

    # g*

    getsgent; getsgent_r; getsgnam; getsgnam_r;

    # p*

    putsgent;

    # s*

    setsgent;

    # s*

    sgetsgent; sgetsgent_r;

  }

}