qt4: kill some reallocations.

modules/gui/qt4/components/preferences_widgets.cpp

@@ -211,7 +211,7 @@ void InterfacePreviewWidget::setPreview( int comboid )
     /* Need to move resources references as soon as qt4.cpp
        local defines has been moved somewhere else
     */
-    const char * pixmaps[] = { ":/prefsmenu/sample_classic",
+    const char pixmaps[][28] = { ":/prefsmenu/sample_classic",
                                  ":/prefsmenu/sample_complete",
                                  ":/prefsmenu/sample_minimal",
                                  ":/prefsmenu/sample_skins" };