title: No sound using sdl2_mixer from Homebrew
body: <p>My friend has asked me to test a program for them which uses <code>sdl2_mixer</code> for sound. I am using OS X 10.11.</p>
  
  <p>I installed <code>sdl2_mixer</code> from Homebrew, but when I run the program, there is no sound.</p>
  
  <p>We have tried <code>.mp3</code>, and <code>.ogg</code> files, but to no avail.</p>
  
  <p>This warning is displayed, but I don't know if it is connected to the issue:</p>
  
  <pre><code>This application, or a library it uses, is using the deprecated Carbon
  Component Manager for hosting Audio Units. Support for this will be 
  removed in a future release. Also, this makes the host incompatible with 
  version 3 audio units. Please transition to the API's in AudioComponent.h.
  </code></pre>