--- boost/archive/detail/iserializer.hpp.orig	2010-10-19 15:45:11.000000000 -0400
+++ boost/archive/detail/iserializer.hpp	2012-03-08 18:27:52.287530606 -0500
@@ -61,7 +61,7 @@
 
 #define DONT_USE_HAS_NEW_OPERATOR (                    \
     defined(__BORLANDC__)                              \
-    || defined(__IBMCPP__)                             \
+    || BOOST_WORKAROUND(__IBMCPP__, < 1210)            \
     || defined(BOOST_MSVC) && (BOOST_MSVC <= 1300)     \
     || defined(__SUNPRO_CC) && (__SUNPRO_CC < 0x590)   \
 )