--- a/src/gui/util/qsystemtrayicon_mac.mm	Tue Jul 06 15:10:48 2010 +0300
+++ b/src/gui/util/qsystemtrayicon_mac.mm	Wed Aug 18 10:37:55 2010 +0300
@@ -226,6 +226,11 @@
     return true;
 }
 
+bool QSystemTrayIconPrivate::supportsMessages_sys()
+{
+    return true;
+}
+
 void QSystemTrayIconPrivate::showMessage_sys(const QString &title, const QString &message, QSystemTrayIcon::MessageIcon icon, int)
 {