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-rw-r--r--boost/metaparse/config.hpp10
1 files changed, 9 insertions, 1 deletions
diff --git a/boost/metaparse/config.hpp b/boost/metaparse/config.hpp
index 2e8e6a2931..f1af39e6b9 100644
--- a/boost/metaparse/config.hpp
+++ b/boost/metaparse/config.hpp
@@ -41,7 +41,15 @@
) \
&& (!defined BOOST_GCC || BOOST_GCC >= 40700)
-# define BOOST_METAPARSE_STD 2011
+# if !defined BOOST_NO_CXX14_CONSTEXPR
+
+# define BOOST_METAPARSE_STD 2014
+
+# else
+
+# define BOOST_METAPARSE_STD 2011
+
+# endif
# else