INC = -I../more_string
LIB = 
CFLAGS = 
DIR_OBJS = ./obj
DIR_BIN = ./bin
 
dirs := $(DIR_OBJS) $(DIR_BIN) 
bin = more_string_example
src = $(wildcard *.c) 
obj = $(patsubst %.c,%.o,$(src))  #patsubst模式字符替换函数 #obj = $(src:.c=.o)
 
obj := $(addprefix $(DIR_OBJS)/,$(obj))
bin := $(addprefix $(DIR_BIN)/,$(bin))
 
#$@ 目标（自动变量）
#$^ 依赖
all: $(dirs) $(bin)
 
$(dirs):
	mkdir $@
 
$(bin):$(obj)
	gcc $^ -o $@ $(CFLAGS) $(INC) $(LIB)
 
$(DIR_OBJS)/%.o:%.c
	gcc $^ -o $@ -c $(CFLAGS) $(INC) $(LIB)
 
clean:
	rm -rf $(dirs) $(bin)
 
.PHONY:all clean