--- boost/multi_array/base.hpp
+++ boost/multi_array/base.hpp
@@ -222,7 +222,7 @@
 // MSVC 2010 is broken in debug mode: it requires
 // that an Output Iterator have output_iterator_tag in its iterator_category if 
 // that iterator is not bidirectional_iterator or random_access_iterator.
-#if BOOST_WORKAROUND(BOOST_MSVC, >= 1600)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1600) || defined __clang__
 struct mutable_iterator_tag
  : boost::random_access_traversal_tag, std::input_iterator_tag
 {
@@ -274,7 +274,7 @@
   //
   // iterator support
   //
-#if BOOST_WORKAROUND(BOOST_MSVC, >= 1600)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1600) || defined __clang__
   // Deal with VC 2010 output_iterator_tag requirement
   typedef array_iterator<T,T*,mpl::size_t<NumDims>,reference,
                          mutable_iterator_tag> iterator;