#include "models/FGPropagate.h"
#include "models/FGMassBalance.h"
#include "models/FGAerodynamics.h"
+#include <iostream>
+#include <cstdlib>
+
+using namespace std;
namespace JSBSim {
-static const char *IdSrc = "$Id$";
+static const char *IdSrc = "$Id: FGForce.cpp,v 1.14 2009/10/24 22:59:30 jberndt Exp $";
static const char *IdHdr = ID_FORCE;
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