+int
+sigchld_handler(int signal_number, void *data);
+
+void
+shell_send_app_state(struct ivi_compositor *ivi, const char *app_id,
+ enum agl_shell_app_state state);
+void
+ivi_layout_destroy_saved_outputs(struct ivi_compositor *ivi);
+
+struct weston_output *
+get_default_output(struct weston_compositor *compositor);
+
+struct weston_output *
+get_focused_output(struct weston_compositor *compositor);