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[ceph.git] / ceph / src / boost / boost / config / compiler / xlcpp.hpp

diff --git a/ceph/src/boost/boost/config/compiler/xlcpp.hpp b/ceph/src/boost/boost/config/compiler/xlcpp.hpp
index a4c66e402cd7fb8477e5ae4fc81549ff4805ad7c..ee7aa1253ada495b055bca3ed3dbc5c01b90230e 100644 (file)
--- a/ceph/src/boost/boost/config/compiler/xlcpp.hpp
+++ b/ceph/src/boost/boost/config/compiler/xlcpp.hpp
@@ -246,6 +246,10 @@
 #  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
 #endif
 
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
 // Clang 3.9+ in c++1z
 #if !__has_cpp_attribute(fallthrough) || __cplusplus < 201406L
 #  define BOOST_NO_CXX17_INLINE_VARIABLES