-#ifdef HAVE_MIT_SAVER_EXTENSION
-extern Bool query_mit_saver_extension (saver_info *);
-#endif
-#ifdef HAVE_SGI_SAVER_EXTENSION
-extern Bool query_sgi_saver_extension (saver_info *);
-#endif
-#ifdef HAVE_XIDLE_EXTENSION
-extern Bool query_xidle_extension (saver_info *);
-#endif
-#ifdef HAVE_RANDR
-extern Bool query_randr_extension (saver_info *);
-#endif