libc {

  GLIBC_2.0 {

    # functions with special/multiple interfaces

    _longjmp; __sigsetjmp; _setjmp;

    # l*

    longjmp;

    # s*

    setjmp;

  }

  GLIBC_PRIVATE {

    # helper functions

    __libc_longjmp; __libc_siglongjmp;

  }

}