adding reference to Bull AIX rpms c.f. #160598 Daniel

* doc/downloads.html doc/xml.html: adding reference to Bull AIX rpms
  c.f. #160598
Daniel
diff --git a/doc/xml.html b/doc/xml.html
index e33a8ba..b02d144 100644
--- a/doc/xml.html
+++ b/doc/xml.html
@@ -670,6 +670,7 @@
     binaries</a>.</li>
   <li>The HP-UX porting center provides <a
     href="http://hpux.connect.org.uk/hppd/hpux/Gnome/">HP-UX binaries</a></li>
+  <li>Bull provides precompiled <a href="http://gnome.bullfreeware.com/new_index.html">RPMs for AIX</a> as patr of their GNOME packages</li>
 </ul>
 
 <p>If you know other supported binary ports, please <a