简单带子目录的makefile练习

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1、简单带子目录的makefile练习　　开始学linux。我练习写的第一个带子目录的makefile文件。　　1。建立文件夹wulong　　wulong中含三个文件夹includesourcepro和makefile文件。　　include中包含hai.h头文件。　　source中包含hello.c文件。　　pro中包含haia.chaib.c文件。　　　　makefile文件内容有两种写法：　　makefile第一种写法：　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　CC=gcc＃选择编译器类型为gcc　　VPATH=include

2、:pr:source#列明文件存放目录　　　　hello:hello.ohaia.ohaib.o　　$(CC)-ohellohello.ohaia.ohaib.o　　hello.o:hello.chai.h　　$(CC)-chello.c　　haia.o:haia.chai.h　　$(CC)-chaia.c　　haib.o:haib.chai.h　　$(CC)-chaib.c　　.PHONY:clean　　clean:　　rmhello$(obj)　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　　　　　　　makefile第二

3、种写法（简化版）：　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　CC=gcc#选择编译种类　　　　VPATH=include:pr:source#在includeprsource三目录下查找文件　　　　obj=hello.ohaia.ohaib.o＃　　　　hello:$(obj)＃　　$(CC)-ohello$(obj)　　　　$(obj):hai.h　　　　.PHONY:clean　　clean:　　rmhello$(obj)　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　　

4、　　　hai.h文件内容为：　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　#include"stdio.h"　　externvoidhaiprinta();　　externvoidhaiprintb();　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　　　hello.c内容为：　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　#include"../include/hai.h"　　　　intmain(void)　　{　　haiprinta();　　haiprintb();　　return0;　　}　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　

5、　　haia.c内容为：　　／／＊＊＊＊＊＊＊＊＊＊＊＊　　#include"../include/hai.h"　　　　voidhaiprinta()　　{　　printf("haiaaaaaaaaaa");　　}　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　　　　　haib.c内容为：　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　#include"../include/hai.h"　　　　voidhaiprintb()　　{　　printf("haibbbbbbbbbbbbbbb");　　}　　／／＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊　　　

6、　2。make调用makefile生成可执行文件hello　　　　3.运行hello显示打印结果：　　[HAI@localhostwulong]$./hello　　haiaaaaaaaaaa　　haibbbbbbbbbbbbbbb　　[HAI@localhostwulong]$　　　　到此结束，恭喜！