* config/locale/gnu/ctype_members.cc (ctype<wchar_t>::do_widen(char)):
	Switch to _M_c_locale_ctype around btowc call.
	(ctype<wchar_t>::do_widen(const char*, const char *, wchar_t*)):
	Switch to _M_c_locale_ctype around mbsrtowcs call.
	(ctype<wchar_t>::do_narrow(char)): Switch to _M_c_locale_ctype around
	wctob call.
	(ctype<wchar_t>::do_narrow(const char*, const char *, wchar_t*)):
	Switch to _M_c_locale_ctype around wcsrtombs call.

From-SVN: r56841