// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
+#ifdef HAVE_CONFIG_H
+# include <simgear_config.h>
+#endif
+
#include "ConditionNode.hxx"
+#include <simgear/math/SGMath.hxx>
+
namespace simgear
{
using namespace osg;