diff -r 5dc02b23752f -r 3e2da88830cd tools/qml/main.cpp
--- a/tools/qml/main.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/tools/qml/main.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -49,12 +49,15 @@
 #include <QTranslator>
 #include <QDebug>
 #include <QMessageBox>
+#include <QAtomicInt>
 #include "qdeclarativetester.h"
 
 QT_USE_NAMESPACE
 
 QtMsgHandler systemMsgOutput = 0;
 
+
+
 #if defined (Q_OS_SYMBIAN)
 #include <unistd.h>
 #include <sys/types.h>
@@ -89,19 +92,25 @@
     }
 }
 
+static QAtomicInt recursiveLock(0);
+
 void myMessageOutput(QtMsgType type, const char *msg)
 {
-    if (!logger.isNull()) {
-        QString strMsg = QString::fromAscii(msg);
-        QMetaObject::invokeMethod(logger.data(), "append", Q_ARG(QString, strMsg));
+    QString strMsg = QString::fromLatin1(msg);
+
+    if (!logger.isNull() && !QCoreApplication::closingDown()) {
+        if (recursiveLock.testAndSetOrdered(0, 1)) {
+            QMetaObject::invokeMethod(logger.data(), "append", Q_ARG(QString, strMsg));
+            recursiveLock = 0;
+        }
     } else {
-        warnings += msg;
+        warnings += strMsg;
         warnings += QLatin1Char('\n');
     }
     if (systemMsgOutput) { // Windows
         systemMsgOutput(type, msg);
     } else { // Unix
-        fprintf(stderr, "%s\n",msg);
+        fprintf(stderr, "%s\n", msg);
         fflush(stderr);
     }
 }
@@ -119,7 +128,7 @@
     qWarning("  -fullscreen............................... run fullscreen");
     qWarning("  -stayontop................................ keep viewer window on top");
     qWarning("  -sizeviewtorootobject .................... the view resizes to the changes in the content");
-    qWarning("  -sizerootobjecttoview .................... the content resizes to the changes in the view");
+    qWarning("  -sizerootobjecttoview .................... the content resizes to the changes in the view (default)");
     qWarning("  -qmlbrowser .............................. use a QML-based file browser");
     qWarning("  -warnings [show|hide]..................... show warnings in a separate log window");
     qWarning("  -recordfile <output> ..................... set video recording file");
@@ -200,6 +209,8 @@
     app.setOrganizationName("Nokia");
     app.setOrganizationDomain("nokia.com");
 
+
+    
     QDeclarativeViewer::registerTypes();
     QDeclarativeTester::registerTypes();
 
@@ -347,8 +358,9 @@
         wflags |= Qt::WindowStaysOnTopHint;
 
     QDeclarativeViewer *viewer = new QDeclarativeViewer(0, wflags);
+    viewer->setAttribute(Qt::WA_DeleteOnClose, true);
     if (!scriptopts.isEmpty()) {
-        QStringList options = 
+        QStringList options =
             scriptopts.split(QLatin1Char(','), QString::SkipEmptyParts);
 
         QDeclarativeViewer::ScriptOptions scriptOptions = 0;
@@ -451,7 +463,5 @@
     viewer->setUseGL(useGL);
     viewer->raise();
 
-    int rv = app.exec();
-    delete viewer;
-    exit(rv);
+    return app.exec();
 }