# include <config.h>
#endif
-#ifdef SG_HAVE_STD_INCLUDES
-# include <cmath>
-# include <ctime>
-# ifdef macintosh
- SG_USING_STD(time_t);
-# endif
-#else
-# include <math.h>
-# include <time.h>
-#endif
+#include <cmath>
+#include <ctime>
#include <simgear/math/SGMath.hxx>
#include <simgear/ephemeris/ephemeris.hxx>