diff -r 23983700e3d7 -r abc6ad7c035c src/window.h
--- a/src/window.h	Wed Feb 14 10:46:38 2007 +0000
+++ b/src/window.h	Sat Feb 17 11:12:50 2007 +0000
@@ -570,7 +570,7 @@
 	byte vehicle_type;
 	union {
 		RailTypeByte railtype;
-		AcceptPlanesByte acc_planes; // AIRCRAFT_ONLY, ALL, HELICOPTERS_ONLY
+		AirportFTAClass::Flags flags;
 	} filter;
 	byte sel_index;  // deprecated value, used for 'unified' ship and road
 	bool descending_sort_order;