int main(int argc, char *argv[]) {
    QApplication app(argc, argv);
    app.addLibraryPath("script/");
    QScriptEngine engine();
    foreach (QString ext, engine.availableExtensions())
        message(ext);
    QScriptValue result = engine.importExtension("qt.core");
        message(result.toString());
}

QStringList temp = app.libraryPaths();
    foreach (QString aa, temp)
          message(aa);