-if ENABLE_C172
-AIRCRAFT_MODEL = c172_aero.c c172_engine.c c172_gear.c c172_init.c navion_init.h
-else
-AIRCRAFT_MODEL = navion_aero.c navion_engine.c navion_gear.c navion_init.c navion_init.h
-endif
-
-# AIRCRAFT_MODEL = cherokee_aero.c cherokee_engine.c cherokee_gear.c cherokee_init.c navion_init.h
+AIRCRAFT_MODEL = c172_aero.c c172_engine.c c172_gear.c c172_init.c \
+ basic_init.c basic_init.h basic_aero.c basic_aero.h basic_engine.c basic_gear.c \
+ navion_init.h navion_aero.c navion_engine.c \
+ navion_gear.c navion_init.c uiuc_aero.c \
+ cherokee_aero.c cherokee_engine.c cherokee_gear.c \
+ cherokee_init.c