[#891,!592] use boost::scoped_ptr instead of mutable

diff --git a/src/lib/stats/stats_mgr.cc b/src/lib/stats/stats_mgr.cc
index 0c79f78ba65a9c14b09aa9ecce4d453db6a147f4..20fbf9e640e17b2111698d78a8b2d06f0f2decda 100644 (file)
--- a/src/lib/stats/stats_mgr.cc
+++ b/src/lib/stats/stats_mgr.cc
@@ -13,6 +13,7 @@
 #include <util/boost_time_utils.h>
 #include <util/multi_threading_mgr.h>
 #include <boost/date_time/posix_time/posix_time.hpp>
+#include <boost/make_shared.hpp>
 
 using namespace std;
 using namespace isc::data;