add missing using namespace::std

diff --git a/coreapi/TunnelManager.cc b/coreapi/TunnelManager.cc
index b8f1dae4890e4ca453c435d1bbf964cc3931218c..3e998cb74bfb99ad2434f2ace5664b06784b412c 100644 (file)
--- a/coreapi/TunnelManager.cc
+++ b/coreapi/TunnelManager.cc
@@ -25,6 +25,7 @@
 
 
 using namespace belledonnecomm;
+using namespace ::std;
 
 Mutex TunnelManager::sMutex;