#define USING_WINDOW2(w,func,data) use_window(w, (NCURSES_WINDOW_CB) func, data)
#define WANT_USE_WINDOW() extern void _nc_want_use_window(void)
#else
#define USING_WINDOW2(w,func,data) use_window(w, (NCURSES_WINDOW_CB) func, data)
#define WANT_USE_WINDOW() extern void _nc_want_use_window(void)
#else