--- boost/cstdint.hpp	2010-02-02 13:35:33.000000000 -0500
+++ boost/cstdint.modified.hpp	2010-02-08 13:18:54.013921138 -0500
@@ -53,6 +53,9 @@
 #   endif 
 # elif defined(__FreeBSD__) || defined(__IBMCPP__) || defined(_AIX)
 #   include <inttypes.h>
+#   if defined(__IBMCPP__) && defined(_AIX) && !defined(__64BIT__)
+#     define BOOST_NO_INT64_T
+#   endif
 # else
 #   include <stdint.h>