Add missing include

Change-Id: I01f9d9b5f2f35dc4aee05b63db2640c86f922de4
Signed-off-by: Sangyoon Jang <jeremy.jang@samsung.com>

diff --git a/src/server/cache_flag.hh b/src/server/cache_flag.hh
index 5ddcb0c..43da05c 100644 (file)
--- a/src/server/cache_flag.hh
+++ b/src/server/cache_flag.hh
@@ -17,6 +17,7 @@
 #ifndef CACHE_FLAG_HH_
 #define CACHE_FLAG_HH_
 
+#include <mutex>
 #include <shared_mutex>
 
 namespace pkgmgr_server {