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-rw-r--r--boost/config/compiler/vacpp.hpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/boost/config/compiler/vacpp.hpp b/boost/config/compiler/vacpp.hpp
index 683c167dbf..c8400a34d3 100644
--- a/boost/config/compiler/vacpp.hpp
+++ b/boost/config/compiler/vacpp.hpp
@@ -65,6 +65,11 @@
#define BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS
#endif
+// Type aliasing hint. Supported since XL C++ 13.1
+#if (__IBMCPP__ >= 1310)
+# define BOOST_MAY_ALIAS __attribute__((__may_alias__))
+#endif
+
//
// C++0x features
//