title: warning: type qualifiers ignored on function return type in gcc 4.1.2
body: <p>I am using gcc 4.1.2 on Linux, and I encountered the following warning:</p>
  
  <pre><code>warning: type qualifiers ignored on function return type
  </code></pre>
  
  <p>I tried to use "-Wno-ignored-qualifiers" to get rid of this warning but it seems not supported: </p>
  
  <pre><code>cc1: error: unrecognized command line option "-Wno-ignored-qualifiers"
  </code></pre>
  
  <p>Is there a way to disable such warnings in gcc 4.1.2? </p>
  
  <p>Thanks a lot.</p>