diff -up qt-everywhere-opensource-src-4.8.5/src/gui/styles/qgtkstyle_p.cpp.qgtkstyle_disable_gtk_theme_check qt-everywhere-opensource-src-4.8.5/src/gui/styles/qgtkstyle_p.cpp

--- qt-everywhere-opensource-src-4.8.5/src/gui/styles/qgtkstyle_p.cpp.qgtkstyle_disable_gtk_theme_check	2013-06-09 16:28:22.938840346 -0500

+++ qt-everywhere-opensource-src-4.8.5/src/gui/styles/qgtkstyle_p.cpp	2013-06-09 17:03:01.781125479 -0500

@@ -503,18 +503,6 @@ void QGtkStylePrivate::initGtkWidgets()

         return;

     }

-    static QString themeName;

-    if (!gtkWidgetMap()->contains("GtkWindow") && themeName.isEmpty()) {

-        themeName = getThemeName();

-

-        if (themeName == QLS("Qt") || themeName == QLS("Qt4")) {

-            // Due to namespace conflicts with Qt3 and obvious recursion with Qt4,

-            // we cannot support the GTK_Qt Gtk engine

-            qWarning("QGtkStyle cannot be used together with the GTK_Qt engine.");

-            return;

-        }

-    }

-

     if (QGtkStylePrivate::gtk_init) {

         // Gtk will set the Qt error handler so we have to reset it afterwards

         x11ErrorHandler qt_x_errhandler = XSetErrorHandler(0);