using std::vector;
using std::max;
using std::exception;
-using boost::shared_ptr;
-using boost::weak_ptr;
-using boost::dynamic_pointer_cast;
+using std::shared_ptr;
+using std::weak_ptr;
+using std::dynamic_pointer_cast;
using boost::optional;
using namespace dcpomatic;
#if BOOST_VERSION >= 106100