cmake 及make 实践记录

DEBIAN操作系统

预备操作:

安装 gcc g++ make cmake 

开启Terminal 

切换到超级用户 下载安装上述软件

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A@debian:~$ su
Password:
 
root@debian:/home/A# apt-get install gcc g++ make cmake
Reading package lists... Done
Building dependency tree      
Reading state information... Done
make is already the newest version.
gcc is already the newest version.
g++ is already the newest version.
cmake is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

  //==========================================================

makefile 内容如下

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TARGET= main
CPP_FILES = $(shell ls *.cpp)
BASE = $(basename $(CPP_FILES))
OBJS = $(addsuffix .o, $(addprefix obj/,$(BASE)))
  
$(TARGET):$(OBJS)
    -rm -f $@
    g++ -o $(TARGET) $(OBJS)
  
obj/%.o:%.cpp
    @if test -d"obj";then\
        mkdir -p obj;\
    fi;\
    g++ -c -o $@ $<
  
clean:
    -rm -f $(TARGET)
    -rm -f obj/*.o

 同一目录下有三个文件 main.cpp Test1.cpp Test1.h Test2.cpp Test2.h

最后结果:

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# make
rm -f main
g++ -o main obj/main.o obj/Test1.o obj/Test2.o

  内容解释参考

http://blog.csdn.net/wcl199274/article/details/39140459

由于网页排版 makefile内容请大家注意重新使用TAB排版 否则可能编译不过

//=============================================================

CMAKE的测试环境如下

一个main.cpp 内容随意 可编译即可

一个CMakeLists.txt

内容如下:

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PROJECT(main)
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
AUX_SOURCE_DIRECTORY(. DIR_SRCS)
ADD_EXECUTABLE(main ${DIR_SRCS})

  编译结果如下

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cmake .
-- Configuring done
-- Generating done
-- Build files have been written to: /home/A/Desktop/3

  

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make
[100%] Building CXX object CMakeFiles/main.dir/main.cpp.o
Linking CXX executable main
[100%] Built target main

  //===================================================

更进一步的 根目录下 放入main.cpp CMakeLists.txt

在新建一个子目录src 子目录下放置Test1.cpp Test1.h CMakeLists.txt

根目录CMakeLists.txt内容如下:

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PROJECT(main)
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
ADD_SUBDIRECTORY( src )
AUX_SOURCE_DIRECTORY(. DIR_SRCS)
ADD_EXECUTABLE(main ${DIR_SRCS}  )
TARGET_LINK_LIBRARIES( main Test )

  子目录CMakeLists.txt内容如下:

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AUX_SOURCE_DIRECTORY(. DIR_TEST1_SRCS)
ADD_LIBRARY ( Test ${DIR_TEST1_SRCS})

  编译显示如下:

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cmake .
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is GNU 4.9.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/A/Desktop/2

  

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make
Scanning dependencies of target Test
[ 50%] Building CXX object src/CMakeFiles/Test.dir/Test1.cpp.o
Linking CXX static library libTest.a
[ 50%] Built target Test
Scanning dependencies of target main
[100%] Building CXX object CMakeFiles/main.dir/main.cpp.o
Linking CXX executable main
[100%] Built target main

  内容解释参考

http://www.ibm.com/developerworks/cn/linux/l-cn-cmake/

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