--- a/airport.c	Sat Jan 22 19:41:30 2005 +0000
+++ b/airport.c	Sat Jan 22 20:23:18 2005 +0000
@@ -22,7 +22,7 @@
 /*static void AirportPrintOut(const AirportFTAClass *Airport, const bool full_report);
 static byte AirportBlockToString(uint32 block);*/
 
-void InitializeAirports()
+void InitializeAirports(void)
 {
 	// country airport
 	CountryAirport = malloc(sizeof(AirportFTAClass));
@@ -97,7 +97,7 @@
 	Oilrig = Heliport;  // exactly the same structure for heliport/oilrig, so share state machine
 }
 
-void UnInitializeAirports()
+void UnInitializeAirports(void)
 {
 	AirportFTAClass_Destructor(CountryAirport);
 	AirportFTAClass_Destructor(CityAirport);