#include <plib/sg.h>
+#include <simgear/misc/props.hxx>
+#include <simgear/constants.h>
+
#include "sphrintp.h"
#include "FGPhysicalProperties.h"
#include "FGPhysicalProperty.h"
-
#include "FGWeatherFeature.h"
#include "FGWeatherDefs.h"
#include "FGThunderstorm.h"