--- a/src/gui/util/qsystemtrayicon_x11.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/src/gui/util/qsystemtrayicon_x11.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -381,6 +381,11 @@
     return QSystemTrayIconSys::locateSystemTray() != XNone;
 }
 
+bool QSystemTrayIconPrivate::supportsMessages_sys()
+{
+    return true;
+}
+
 void QSystemTrayIconPrivate::showMessage_sys(const QString &message, const QString &title,
                                    QSystemTrayIcon::MessageIcon icon, int msecs)
 {