-/*! Does the display have the VidMode extension? */
-extern gboolean extensions_vidmode;
-/*! Base for events for the VidMode extension */
-extern gint extensions_vidmode_event_basep;
+/*! Does the display have the Sync extension? */
+extern gboolean extensions_sync;
+/*! Base for events for the Sync extension */
+extern gint extensions_sync_event_basep;