Index: /trunk/src/VBox/Devices/PC/DevRTC.cpp
===================================================================
--- /trunk/src/VBox/Devices/PC/DevRTC.cpp	(revision 80642)
+++ /trunk/src/VBox/Devices/PC/DevRTC.cpp	(revision 80643)
@@ -129,5 +129,5 @@
 };
 
-#if 0 /* new / old style device selector */
+#if 1 /* new / old style device selector */
 
 typedef struct RTCSTATE
@@ -1205,5 +1205,5 @@
      * Register I/O ports.
      */
-    rc = PDMDevHlpIoPortCreateAndMap(pDevIns, pThis->IOPortBase, 4, rtcIOPortWrite, rtcIOPortRead, NULL /*pvUser*/,
+    rc = PDMDevHlpIoPortCreateAndMap(pDevIns, pThis->IOPortBase, 4, rtcIOPortWrite, rtcIOPortRead,
                                      "MC146818 RTC/CMOS", &pThis->hIoPorts);
     AssertRCReturn(rc, rc);