NavDisplay - custom symbol support enabled.

[flightgear.git] / src / Environment / environment_ctrl.cxx

diff --git a/src/Environment/environment_ctrl.cxx b/src/Environment/environment_ctrl.cxx
index e7c8820fa4a3d82a686577587b1d3eb315f85327..98f59cb9ef61eb1694f5d74dbd0c995d2095f043 100644 (file)
--- a/src/Environment/environment_ctrl.cxx
+++ b/src/Environment/environment_ctrl.cxx
@@ -26,6 +26,7 @@
 
 #include <algorithm>
 
+#include <simgear/math/SGMath.hxx>
 #include <Main/fg_props.hxx>
 #include "environment_ctrl.hxx"
 #include "environment.hxx"