}
#ifdef X11
-void clean_up_x11() {
+void clean_up_x11(void)
+{
if(window_created == 1) {
XClearArea(display, window.window, text_start_x - window.border_inner_margin - window.border_outer_margin - window.border_width,
text_start_y - window.border_inner_margin - window.border_outer_margin - window.border_width,