libc {

  GLIBC_2.0 {

    # functions used in inline functions or macros

    __iswctype;

    # i*

    iswalnum; iswalpha; iswcntrl; iswctype; iswdigit; iswgraph; iswlower;

    iswprint; iswpunct; iswspace; iswupper; iswxdigit;

    # t*

    towctrans; towlower; towupper;

    # w*

    wctrans; wctype; wcwidth;

  }

  GLIBC_2.1 {

    # functions used in inline functions or macros

    __towctrans;

    # i*

    iswblank;

  }

}