makefile

设有二元函数 f(x,y) = f(x) + f(y) 其中：f(x) = f(x-1) * x (x>1) f(x) = 1 (x=

srcs = ppipe.c
objs = ppipe.o
opts = -g -c
all:       ppipe
ppipe: $(objs)
	gcc $(objs) -o ppipe
ppipe.o: $(srcs)
	gcc $(opts) $(srcs)
clean:
	rm ppipe *.o