title: Add SDL to my path
body: <p>I install SDL via brew on my mac but I can't include it!
  Here is my too easy code:</p>
  
  <pre><code>#include &lt;SDL.h&gt;
  int main(){
      return 0;
  }
  </code></pre>
  
  <p>when I compile it with cc, CC could not find SDL.h
  I found that brew install SDL in Cellar but cc did not check this folder
  Could you help me?</p>