DER: In visitor code, use ndnboost::any. We can use ndnboost::any because this is an internal header and will not conflict with the application if it uses boost::any.
diff --git a/include/Makefile.in b/include/Makefile.in
index 82fc5c2..18313c0 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -392,6 +392,7 @@
ndnboost/algorithm/string/sequence_traits.hpp \
ndnboost/algorithm/string/yes_no_type.hpp \
ndnboost/aligned_storage.hpp \
+ ndnboost/any.hpp \
ndnboost/array.hpp \
ndnboost/assert.hpp \
ndnboost/bind/apply.hpp \