Close dialogs on GUI shutdown

[flightgear.git] / src / Traffic / Schedule.cxx

diff --git a/src/Traffic/Schedule.cxx b/src/Traffic/Schedule.cxx
index 482727cb3e72b5bfde5bae877722544b847fb5e8..a47dfd2ca3493c2485be2d0b1181736b07747e0d 100644 (file)
--- a/src/Traffic/Schedule.cxx
+++ b/src/Traffic/Schedule.cxx
@@ -55,6 +55,8 @@
 #include "SchedFlight.hxx"
 #include "TrafficMgr.hxx"
 
+using std::string;
+
 /******************************************************************************
  * the FGAISchedule class contains data members and code to maintain a
  * schedule of Flights for an artificially controlled aircraft.