Declare _nl_C_LC_CTYPE_class, _nl_C_LC_CTYPE_class32,

Declare _nl_C_LC_CTYPE_class, _nl_C_LC_CTYPE_class32,
_nl_C_LC_CTYPE_toupper, _nl_C_LC_CTYPE_tolower,
_nl_C_LC_CTYPE_class_upper, _nl_C_LC_CTYPE_class_lower,
_nl_C_LC_CTYPE_class_alpha, _nl_C_LC_CTYPE_class_digit,
_nl_C_LC_CTYPE_class_xdigit, _nl_C_LC_CTYPE_class_space,
_nl_C_LC_CTYPE_class_print, _nl_C_LC_CTYPE_class_graph,
_nl_C_LC_CTYPE_class_blank, _nl_C_LC_CTYPE_class_cntrl,
_nl_C_LC_CTYPE_class_punct, _nl_C_LC_CTYPE_class_alnum,
_nl_C_LC_CTYPE_map_toupper, _nl_C_LC_CTYPE_map_tolower, and
_nl_C_LC_CTYPE_width: Declare as hidden.