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-rw-r--r--boost/type_traits/common_type.hpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/boost/type_traits/common_type.hpp b/boost/type_traits/common_type.hpp
index 5c4303b9ec..c887a897f8 100644
--- a/boost/type_traits/common_type.hpp
+++ b/boost/type_traits/common_type.hpp
@@ -12,6 +12,7 @@
#include <boost/config.hpp>
#include <boost/type_traits/decay.hpp>
#include <boost/type_traits/declval.hpp>
+#include <boost/detail/workaround.hpp>
#if defined(BOOST_NO_CXX11_DECLTYPE)
#include <boost/type_traits/detail/common_type_impl.hpp>