fix #416: reciprocal filter broken

[flightgear.git] / src / Autopilot / inputvalue.hxx

diff --git a/src/Autopilot/inputvalue.hxx b/src/Autopilot/inputvalue.hxx
index 40c0377ad43025ed5727384c93cdb45dcaed224d..bdf0b6382e3757f88dc2b784cdd45481513d274e 100644 (file)
--- a/src/Autopilot/inputvalue.hxx
+++ b/src/Autopilot/inputvalue.hxx
@@ -21,6 +21,11 @@
 #ifndef _INPUTVALUE_HXX
 #define _INPUTVALUE_HXX 1
 
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+
 #include <simgear/structure/SGExpression.hxx>
 
 namespace FGXMLAutopilot {