Makefile编译

这篇文章演示多目录，c,c++混编的Makefile写法。

文件夹：
　　$dir/bin/
　　$dir/deps/
　　　　deps/inc/
　　　　deps/lib/
　　　　deps/src/
　　$dir/obj/
　　$dir/project/
　　　　project/test.mk
　　$dir/src/
　　　　src/class1.cpp
　　　　src/class1.h
　　　　src/test.cpp
　　　　src/mydir/class2.cpp
　　　　src/mydir/class2.h
　　　　src/mydir/funs1.c
　　　　src/mydir/funs1.h

class1.h:

　　#ifndef __CLASS_1_h__
    #define __CLASS_1_h__

    class CTest1
    {
    public:
            CTest1();
            ~CTest1();

            int get_v1();

    private:
            int m_v1;
    };

    #endif

class1.cpp:

　　#include "class1.h"

    CTest1::CTest1()
    {
            m_v1 = 0;
    }


    CTest1::~CTest1()
    {
    }

    int CTest1::get_v1()
    {
            return m_v1;
    }

mydir/class2.h:

　　#ifndef __CLASS_2_h__
    #define __CLASS_2_h__

    class CTest2
    {
    public:
            CTest2();
            ~CTest2();

            int get_v1();

    private:
            int m_v1;
    };

    #endif

mydir/class2.cpp:

　　#include "class2.h"

    CTest2::CTest2()
    {
            m_v1 = 0;
    }


    CTest2::~CTest2()
    {
    }

    int CTest2::get_v1()
    {
            return m_v1;
    }

mydir/funs1.h:

　　#ifndef __FUNS1_H__
    #define __FUNS1_H__

    void print1();

    #endif

mydir/funs1.c:

    #include "funs1.h"
    #include <stdio.h>

    void print1()
    {
            printf("this is print1
");
    }

test.cpp:

　　//#define __STDC_LIMIT_MACROS
    #include <stdint.h>
    #include <iostream>
    #include "class1.h"
    #include "mydir/class2.h"

    extern "C"
    {
            #include "mydir/funs1.h"
    }

    int main()
    {
            CTest1 test1;
            CTest2 test2;
            int a = 127;
            int16_t b = 128;
            print1();
            std::cout << "max int=" << INT32_MAX << std::endl;
            std::cout << "test1.v1 = " << test1.get_v1()  << std::endl;
            return 1;
    }

test.mk:

　　CFLAGS = -g -Wall -I../src -I../src/mydir -D __STDC_LIMIT_MACROS
    CC = gcc
    GXX = g++
    #VPATH = ../src  ../src/mydir
    SRCPATH = ../src
    OBJPATH = ../obj
    BINPATH = ../bin
    PROGRAM = test.exe
    OBJS= class1.o class2.o funs1.o test.o

    PROGRAMFULL = $(addprefix $(BINPATH)/, $(PROGRAM))
    OBJSFULL = $(addprefix $(OBJPATH)/, $(OBJS))

    .PHONY: all clean cleanobj show

    all: clean $(PROGRAMFULL)

    ${PROGRAMFULL} : ${OBJSFULL}
            $(GXX) -o $@ $(OBJSFULL)

    ${OBJPATH}/%.o : ${SRCPATH}/mydir/%.c
            $(CC) $(CFLAGS) -c $< -o $@

    ${OBJPATH}/%.o : ${SRCPATH}/mydir/%.cpp
            $(GXX) $(CFLAGS) -c $< -o $@

    ${OBJPATH}/%.o : ${SRCPATH}/%.cpp
            $(GXX) $(CFLAGS) -c $< -o $@

    clean:
            rm -f ${PROGRAMFULL} ${OBJSFULL}

    cleanobj:
            rm -f ${OBJSFULL}

    show:
            @echo 'PROGRAMFULL     :' ${PROGRAMFULL}
            @echo 'OBJSFULL        :' $(OBJSFULL)
            @echo 'CFLAGS          :' $(CFLAGS)