CC=gcc COPT=-ansi covering: sets.o covering.o basic.o $(CC) $(COPT) -o covering sets.o covering.o basic.o covering.o: covering.c basic.h sets.h $(CC) $(COPT) -c covering.c sets.o: sets.c sets.h $(CC) $(COPT) -c sets.c basic.o: basic.c basic.h $(CC) $(COPT) -c basic.c clean: rm -f covering basic.o sets.o covering.o