struct trackable;
}
-#define ENSURE_GUI_THREAD(obj,method, ...) if (!Gtkmm2ext::UI::instance()->caller_is_self()) { abort (); }
+#define ENSURE_GUI_THREAD(obj,method, ...) if (!Gtkmm2ext::UI::instance()->caller_is_self()) { abort (); }
#define gui_context() Gtkmm2ext::UI::instance() /* a UICallback-derived object that specifies the event loop for GUI signal handling */
#define ui_bind(f, ...) boost::protect (boost::bind (f, __VA_ARGS__))