HAVE_DECL_WCSDUP  988 maint/gnulib/lib/wchar.in.h #   if @HAVE_DECL_WCSDUP@
HAVE_DECL_WCSDUP  992 maint/gnulib/lib/wchar.in.h #  if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_WCSDUP@