#endif
-/**
- * Initialize a single value through all existing weather levels.
- *
- * This function is useful mainly from the command-line.
- *
- * @param propname The name of the subproperty to initialized.
- * @param value The initial value.
- */
-extern void fgDefaultWeatherValue (const char * propname, double value);
-
-
-/**
- * Set up a plausible wind layout, boundary and aloft,
- * based on just a few parameters.
- *
- * @param min_hdg Minimal wind heading
- * @param max_hdg Maximal wind heading
- * @param speed Windspeed in knots
- * @param gust Wind gust variation in knots
- */
-extern void fgSetupWind (double min_hdg, double max_hdg,
- double speed, double gust);
-
-/**
- * Clean up and exit FlightGear.
- *
- * This function makes sure that network connections and I/O streams
- * are cleaned up.
- *
- * @param status The exit status to pass to the operating system.
- */
-extern void fgExit (int status = 0);
-
-
/**
* Move a value towards a target.
*