Index: exch/exmdb/db_engine.cpp
--- exch/exmdb/db_engine.cpp.orig
+++ exch/exmdb/db_engine.cpp
@@ -52,6 +52,8 @@
 #include "notification_agent.hpp"
 #define MAX_DYNAMIC_NODES				100
 
+#include <sys/stat.h>
+
 using LLD = long long;
 using LLU = unsigned long long;
 using namespace gromox;
