title: webkit/webkit.h: No such file or directory
body: <p>I am trying to create Vala program with WebKit. 
  Here is how I compile it:</p>
  
  <pre><code>valac --pkg gtk+-3.0 --pkg granite --pkg glib-2.0 --pkg webkitgtk-3.0  &lt;filenames&gt;
  </code></pre>
  
  <p>and in one file I included WebKit:</p>
  
  <pre><code>using WebKit;
  </code></pre>
  
  <p>The compiler says:</p>
  
  <pre><code>fatal error: webkit/webkit.h: No such file or directory
  #include &lt;webkit/webkit.h&gt;
  </code></pre>
  
  <p>I heard that this file should be in /usr/include/webkit/webkit.h, but it isn't there.</p>
  
  <p>I'm using elementary OS Freya x64.</p>
  
  <p>Can you tell me which packages I need to install or what else I need to do? I already have libwebkitgtk-3.0-0, libwebkitgtk-3.0-common and libwebkit2gtk-3.0-25 installed.</p>