diff -rupN boost_1_42_0/boost/serialization/extended_type_info_no_rtti.hpp boost_1_42_0_qnx-6.3.2/boost/serialization/extended_type_info_no_rtti.hpp
--- boost_1_42_0/boost/serialization/extended_type_info_no_rtti.hpp	2009-12-15 02:53:16.000000000 +0300
+++ boost_1_42_0_qnx-6.3.2/boost/serialization/extended_type_info_no_rtti.hpp	2010-03-11 11:32:05.246838600 +0300
@@ -124,7 +124,11 @@ public:
     }
     virtual void * construct(unsigned int count, ...) const{
         // count up the arguments
+#ifdef __QNXNTO__
+        va_list ap;
+#else
         std::va_list ap;
+#endif
         va_start(ap, count);
         switch(count){
         case 0:
diff -rupN boost_1_42_0/boost/serialization/extended_type_info_typeid.hpp boost_1_42_0_qnx-6.3.2/boost/serialization/extended_type_info_typeid.hpp
--- boost_1_42_0/boost/serialization/extended_type_info_typeid.hpp	2009-12-15 02:53:16.000000000 +0300
+++ boost_1_42_0_qnx-6.3.2/boost/serialization/extended_type_info_typeid.hpp	2010-03-11 11:27:28.345838600 +0300
@@ -19,7 +19,11 @@
 //  See http://www.boost.org for updates, documentation, and revision history.
 
 #include <typeinfo>
+#ifdef __QNXNTO__
+#include <stdarg.h>
+#else
 #include <cstdarg>
+#endif
 #include <cassert>
 #include <boost/config.hpp>
 
@@ -109,7 +113,11 @@ public:
     }
     virtual void * construct(unsigned int count, ...) const{
         // count up the arguments
+#ifdef __QNXNTO__
+        va_list ap;
+#else
         std::va_list ap;
+#endif
         va_start(ap, count);
         switch(count){
         case 0:
diff -rupN boost_1_42_0/boost/serialization/factory.hpp boost_1_42_0_qnx-6.3.2/boost/serialization/factory.hpp
--- boost_1_42_0/boost/serialization/factory.hpp	2009-08-02 03:32:13.000000000 +0400
+++ boost_1_42_0_qnx-6.3.2/boost/serialization/factory.hpp	2010-03-11 11:31:08.897338600 +0300
@@ -16,7 +16,11 @@
 
 //  See http://www.boost.org for updates, documentation, and revision history.
 
+#ifdef __QNXNTO__
+#include <stdarg.h>
+#else
 #include <cstdarg> // valist
+#endif
 #include <cstddef> // NULL
 
 #include <boost/preprocessor/control/if.hpp> 
@@ -34,7 +38,11 @@ namespace serialization {
 
 // default implementation does nothing.
 template<class T, int N>
+#ifdef __QNXNTO__
+T * factory(va_list){
+#else
 T * factory(std::va_list){
+#endif
     assert(false);
     // throw exception here?
     return NULL;
@@ -43,6 +51,39 @@ T * factory(std::va_list){
 } // namespace serialization
 } // namespace boost
 
+#ifdef __QNXNTO__
+#define BOOST_SERIALIZATION_FACTORY(N, T, A0, A1, A2, A3) \
+namespace boost {                                         \
+namespace serialization {                                 \
+    template<>                                            \
+    T * factory<T, N>(va_list ap){                        \
+        BOOST_PP_IF(BOOST_PP_GREATER(N,0)                 \
+            ,A0 a0 = va_arg(ap, A0);                      \
+        ,BOOST_PP_IF(BOOST_PP_GREATER(N,1)                \
+            ,A1 a1 = va_arg(ap, A1);                      \
+        ,BOOST_PP_IF(BOOST_PP_GREATER(N,2)                \
+            ,A2 a2 = va_arg(ap, A2);                      \
+        ,BOOST_PP_IF(BOOST_PP_GREATER(N,3)                \
+            ,A3 a3 = va_arg(ap, A3);                      \
+            ,BOOST_PP_EMPTY()                             \
+        ))))                                              \
+        return new T(                                     \
+            BOOST_PP_IF(BOOST_PP_GREATER(N,0)             \
+                ,a0                                       \
+            ,BOOST_PP_IF(BOOST_PP_GREATER(N,1)            \
+                ,a1                                       \
+            ,BOOST_PP_IF(BOOST_PP_GREATER(N,2)            \
+                ,a2                                       \
+            ,BOOST_PP_IF(BOOST_PP_GREATER(N,3)            \
+                ,a3                                       \
+                ,BOOST_PP_EMPTY()                         \
+            ))))                                          \
+        );                                                \
+    }                                                     \
+}                                                         \
+}                                                         \
+/**/
+#else
 #define BOOST_SERIALIZATION_FACTORY(N, T, A0, A1, A2, A3) \
 namespace boost {                                         \
 namespace serialization {                                 \
@@ -74,6 +115,7 @@ namespace serialization {               
 }                                                         \
 }                                                         \
 /**/
+#endif
 
 #define BOOST_SERIALIZATION_FACTORY_4(T, A0, A1, A2, A3) \
     BOOST_SERIALIZATION_FACTORY(4, T, A0, A1, A2, A3)