Patch by Martin Michlmayr <tbm@cyrius.com> via bug 421127.

--- ../orig/einstein-2.0.dfsg.2/convert.h	2005-08-14 04:40:58.000000000 +0200
+++ convert.h	2007-08-31 11:33:06.000000000 +0200
@@ -5,6 +5,7 @@
 #include <iostream>
 #include <sstream>
 #include <string>
+#include <typeinfo>
 
 #include "exceptions.h"
 #include "unicode.h"