diff -up qt-everywhere-opensource-src-4.8.1/src/dbus/qdbusconnection.cpp.qdbusconnection_nodebug qt-everywhere-opensource-src-4.8.1/src/dbus/qdbusconnection.cpp

--- qt-everywhere-opensource-src-4.8.1/src/dbus/qdbusconnection.cpp.qdbusconnection_nodebug	2012-04-17 07:18:51.536629078 -0500

+++ qt-everywhere-opensource-src-4.8.1/src/dbus/qdbusconnection.cpp	2012-04-17 07:18:56.910561895 -0500

@@ -1109,8 +1109,10 @@ public:

         // make sure this connection is running on the main thread

         QCoreApplication *instance = QCoreApplication::instance();

         if (!instance) {

+#ifndef QT_NO_DEBUG

             qWarning("QDBusConnection: %s D-Bus connection created before QCoreApplication. Application may misbehave.",

                      type == SessionBus ? "session" : type == SystemBus ? "system" : "generic");

+#endif

         } else {

             QDBusConnectionPrivate::d(*this)->moveToThread(instance->thread());

         }