diff --git a/src/FDM/YASim/FGGround.cpp b/src/FDM/YASim/FGGround.cpp
index 6a82151df..e6af48cc4 100644
--- a/src/FDM/YASim/FGGround.cpp
+++ b/src/FDM/YASim/FGGround.cpp
@@ -1,3 +1,7 @@
+#ifdef HAVE_CONFIG_H
+  #include <config.h>
+#endif
+
 #include <FDM/flight.hxx>
 
 #include "Glue.hpp"
diff --git a/src/Traffic/Schedule.cxx b/src/Traffic/Schedule.cxx
index b51a5db4e..2bb86393e 100644
--- a/src/Traffic/Schedule.cxx
+++ b/src/Traffic/Schedule.cxx
@@ -444,6 +444,9 @@ void FGAISchedule::setClosestDistanceToUser()
 
   FGAirport *dep;
   
+#ifdef __CYGWIN__
+  #define HUGE HUGE_VAL
+#endif
   distanceToUser = HUGE;
   FGScheduledFlightVecIterator i = flights.begin();
   while (i != flights.end())