title: How can I use gettext in vala?
body: <p>When I try to use gettext in vala I get not errors or warnings from vala but I get the following error from the c compiler:</p>
  
  <pre><code>/usr/include/glib-2.0/glib/gi18n-lib.h:29:2: error: #error You must define GETTEXT_PACKAGE before including gi18n-lib.h. Did you forget to include config.h?
  </code></pre>
  
  <p>How can I fix this?</p>