title: <command-line>:0:11: warning: extra tokens at end of #undef directive [enabled by default]
body: <p>Problem with compiling.    </p>
  
  <pre><code>gcc (GCC) 4.6.3 20120306 (Red Hat 4.6.3-2)
  c89
  cmake version 2.8.7
  </code></pre>
  
  <p>Not sure how to start with this one. I have googled it but couldn't come up with anything.</p>
  
  <p>This is the warning I am getting:</p>
  
  <pre><code>&lt;command-line&gt;:0:11: warning: extra tokens at end of #undef directive [enabled by default]
  </code></pre>
  
  <p>I am using cmake as the build system that creates the Makefile that I will compile. However, I am not sure why I am getting this warning. I have never had that before.</p>
  
  <p>Can any one point me in the right direction. I am not sure what information I should provide to help solve this problem.</p>
  
  <p>Many thanks for any suggestions,</p>