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-rw-r--r--boost/geometry/core/interior_type.hpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/boost/geometry/core/interior_type.hpp b/boost/geometry/core/interior_type.hpp
index e6c4537e41..66544b79af 100644
--- a/boost/geometry/core/interior_type.hpp
+++ b/boost/geometry/core/interior_type.hpp
@@ -17,7 +17,10 @@
#include <boost/mpl/assert.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/type_traits/is_const.hpp>
#include <boost/type_traits/remove_const.hpp>
+#include <boost/type_traits/remove_reference.hpp>
#include <boost/geometry/core/tag.hpp>
#include <boost/geometry/core/tags.hpp>