Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineWindow.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineWindow.cpp	(revision 50492)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineWindow.cpp	(revision 50493)
@@ -528,11 +528,13 @@
 }
 
+#ifdef Q_WS_MAC
 void UIMachineWindow::handleNativeNotification(const QString &strNativeNotificationName, QWidget *pWidget)
 {
-    /* Redirect arrived notification: */
+    /* Handle arrived notification: */
     LogRel(("UIMachineWindow::handleNativeNotification: Notification '%s' received.\n",
             strNativeNotificationName.toAscii().constData()));
     if (UIMachineWindow *pMachineWindow = qobject_cast<UIMachineWindow*>(pWidget))
     {
+        /* Redirect arrived notification: */
         LogRel(("UIMachineWindow::handleNativeNotification: Redirecting '%s' notification to corresponding machine-window...\n",
                 strNativeNotificationName.toAscii().constData()));
@@ -540,3 +542,4 @@
     }
 }
-
+#endif /* Q_WS_MAC */
+