title: "Problems" window shows fake errors
body: <p>Eclipse CDT is showing strange errors in my editor/problems windows. For example, for a line like:</p>
  
  <pre><code>#include &lt;string&gt;
  </code></pre>
  
  <p>it says: <code>Unresolved inclusion: &lt;string&gt;</code>, as if Eclipse couldn't find such a basic include file. Of course because of those include errors, almost no definition is recognized later, resulting in even more errors. This is despite that the project builds correctly from Eclipse.</p>
  
  <p>This is an <code>autotools</code>-based source. The project was set to custom Makefile mode. I use Debian, Eclipse 3.7.</p>
  
  <p>How to get rid of those fake errors?</p>