CC = gcc
CFLAGS = -O2 -fomit-frame-pointer

all: zc

zc: zc.o io.o
	$(CC) -s -o zc zc.o io.o

zc.o: zc$(MODE).c
	$(CC) $(CFLAGS) -c -o $@ $<

io.o: io.c
	$(CC) $(CFLAGS) -c -o $@ $<

clean:
	rm *.o zc