title: gdk/gdk.h: No such file or directory
body: <p>I am trying to use gui with gkt-2.0 in Linux mint 32bit. When I try to compile gui.c I encountered following error message:</p>
  <pre><code>#include&lt;gtk-2.0/gtk/gtk.h&gt;
  
  void main(){
  }
  </code></pre>
  <pre><code>In file included from gui.c:1:0:
  /usr/include/gtk-2.0/gtk/gtk.h:32:10: fatal error: gdk/gdk.h: No such file or directory
   #include &lt;gdk/gdk.h&gt;
            ^~~~~~~~~~~
  </code></pre>