travel: travel.c cities.c cityroutes.c citystk.c libstr.a libreadfile.a
	gcc -DNDEBUG -Wall -ansi -o travel travel.c cities.c cityroutes.c citystk.c -L. -lreadfile -lstr

travel-db: travel.c cities.c cityroutes.c citystk.c libstr.a libreadfile.a
	gcc -DDEBUG -Wall -ansi -g -o travel-db travel.c cities.c cityroutes.c citystk.c -L. -lreadfile -lstr