title: How to install Box2D-qml with mingw32
body: <p>My environment:
  Qt 5.3.1 + Mingw32
  Windows 7</p>
  
  <p>I tired these:</p>
  
  <ol>
  <li>Extract <code>box2d-qml</code> in <code>C:\Qt\Qt5.3.1\5.3\mingw482_32\imports</code> and rename it as <code>Box2D</code></li>
  <li>Open cmd and <code>cd</code> into <code>Box2D</code>'s directory .</li>
  <li>Input <code>qmake</code> in cmd, no output</li>
  <li>Input <code>mingw32-make</code>, no error output.</li>
  <li>Input <code>mingw32-make install</code>, no error output. and <code>Box2D.2.0</code> was generated under <code>C:\Qt\Qt5.3.1\5.3\mingw482_32\qml</code> directory.</li>
  </ol>
  
  <p>Then i create empty quick project and add <code>import Box2D 2.0</code> into qml.
  Moving the mouse cursor on <code>import Box2D 2.0</code>,QtCreator pop up a message:
  <a href="https://i.stack.imgur.com/TjrjP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TjrjP.png" alt="enter image description here"></a></p>
  
  <p>But when i run it got error:</p>
  
  <pre><code>QQmlApplicationEngine failed to load component
  qrc:///main.qml:3 plugin cannot be loaded for module "Box2D": ?v???O?C?? 'C:/Qt/Qt5.3.1/5.3/mingw482_32/qml/Box2D.2.0/Box2D.dll' ????? Qt ?????????????C?u???????g?p?????????B (?f?o?b?N???????[?X?????C?u?????????g?p???邱??????????)
  </code></pre>
  
  <p>The main Cpp:</p>
  
  <pre><code>#include &lt;QGuiApplication&gt;
  #include &lt;QQmlApplicationEngine&gt;
  
  int main(int argc, char *argv[])
  {
      QGuiApplication app(argc, argv);
  
      QQmlApplicationEngine engine;
      engine.load(QUrl(QStringLiteral("qrc:///main.qml")));
  
      return app.exec();
  }
  </code></pre>