--- boost/serialization/factory.hpp.orig	2009-08-02 01:32:13.000000000 +0200
+++ boost/serialization/factory.hpp	2010-03-23 18:44:14.000000000 +0100
@@ -24,7 +24,7 @@
 #include <boost/preprocessor/facilities/empty.hpp>
 
 namespace std{
-    #if defined(__LIBCOMO__)
+    #if defined(__LIBCOMO__) || defined(__QNXNTO__)
         using ::va_list;
     #endif
 } // namespace std