title: implicit conversion of an Objective-C pointer to 'void *' is disallowed with ARC
body: <p>What does this mean and what alternative do I have?</p>
  <blockquote>
  <p>implicit conversion of an Objective-C pointer to 'void *' is disallowed with ARC</p>
  </blockquote>
  <p>I am porting an Xcode3 project to iOS5 which uses AudioSessionInitialize like this</p>
  <pre><code>AudioSessionInitialize(NULL, NULL, NULL, self);
  </code></pre>
  <p>where <code>self</code> here is a ViewController.</p>