extern Bool query_proc_interrupts_available (saver_info *, const char **why);
#endif
+#ifdef HAVE_XINPUT
+extern Bool query_xinput_extension (saver_info *);
+extern void init_xinput_extension (saver_info *si);
+#endif
+
/* Display Power Management System (DPMS) interface. */
extern Bool monitor_powered_on_p (saver_info *si);
extern void monitor_power_on (saver_info *si);