CMake使用小计

不念不忘少年蓝@ 2022-08-07 04:57 226阅读 0赞

转自：http://wenku.baidu.com/view/e3d4dad428ea81c758f57854.html

**CMake** 使用小记  
创建库文件  
使用 CMake 构建工程，创建一个共享库文件。  
工程目录结构  
**/tliba/**  
|--  CMakeLists.txt  
|-- **bin**  
|-- **build**  
\`-- **src**  
|--  CMakeLists.txt  
|-- hello.cpp  
\`-- hello.hpp  
规范说明  
*bin* 生成的目标文件存放目录；  
*build cmake* 生成的工程编译文件存放目录；  
*src* 源代码文件存放目录；  
**CMakeLists.txt**  
\#begin  
**PROJECT**(tliba)  
**SET**( EXECUTABLE\_OUTPUT\_PATH $\{PROJECT\_SOURCE\_DIR\}/bin )  
**SET**( LIBRARY\_OUTPUT\_PATH $\{PROJECT\_SOURCE\_DIR\}/bin )  
**SET**( CMAKE\_BUILD\_TYPE Debug)  
**ADD\_SUBDIRECTORY**(src)  
\#end  
**src/CMakeLists.txt**  
\#begin  
**SET**( SRCS  
hello.cpp  
)  
**ADD\_LIBRARY**( **helloa** SHARED $\{SRCS\} )  
\#end  
编译  
先进入*build* 目录  
\[root@localhost tliba\]\# **cd ./build**  
然后执行*cmake ..*命令  
\[root@localhost build\]\# **cmake ..**  
\-- Check for working C compiler: /usr/lib/ccache/gcc  
\-- Check for working C compiler: /usr/lib/ccache/gcc -- works  
\-- Check size of void\*  
\-- Check size of void\* - done  
\-- Check for working CXX compiler: /usr/lib/ccache/c++  
\-- Check for working CXX compiler: /usr/lib/ccache/c++ -- works  
\-- Configuring done  
\-- Generating done  
\-- Build files have been written to: /workspace/cmakepro/tliba/build  
\[root@localhost build\]\#  
\[root@localhost build\]\#  
\[root@localhost build\]\#  
最后执行*make* 命令  
\[root@localhost build\]\# **make**  
Scanning dependencies of target **helloa**  
\[100%\]  Building CXX object src/CMakeFiles/helloa.dir/hello.o  
Linking CXX shared library **../../bin/libhelloa.so**  
\[100%\] Built target **helloa**  
\[root@localhost build\]\#  
执行上述命令的结构是在 tliba/bin 目录下生成了共享库文件 libhelloa.so  
创建可执行文件  
使用 CMake 构建工程，创建一个可执行文件，并使用到共享库 helloa.so；  
工程目录结构  
/tuliba/  
|--  CMakeLists.txt  
|-- **bin**  
|-- **build**  
|-- **include**  
| \`-- hello.hpp  
|-- **lib**  
| \`-- libhelloa.so  
\`-- **src**  
|--  CMakeLists.txt  
\`-- main.cpp  
规范说明  
*include* 第三方头文件存放目录  
*lib* 第三方库文件存放目录  
**CMakeLists.txt**  
\#begin  
**PROJECT**(tuliba)  
**SET**( EXECUTABLE\_OUTPUT\_PATH $\{PROJECT\_SOURCE\_DIR\}/bin )  
**SET**( LIBRARY\_OUTPUT\_PATH $\{PROJECT\_SOURCE\_DIR\}/bin )  
**SET**( CMAKE\_BUILD\_TYPE Debug)  
**INCLUDE\_DIRECTORIES**( $\{PROJECT\_SOURCE\_DIR\}/include )  
**LINK\_DIRECTORIES**( $\{PROJECT\_SOURCE\_DIR\}/lib )  
**ADD\_SUBDIRECTORY**(src)  
\#end  
**src/CMakeLists.txt**  
\#begin  
**SET**( SRCS  
main.cpp  
)  
**ADD\_EXECUTABLE**(app $\{SRCS\})  
**TARGET\_LINK\_LIBRARIES**( app helloa )  
\#end  
编译  
进入*build* 目录  
\[root@localhost tuliba\]\# **cd build**  
执行*cmake ..*命令  
\[root@localhost build\]\# **cmake ..**  
\-- Check for working C compiler: /usr/lib/ccache/gcc  
\-- Check for working C compiler: /usr/lib/ccache/gcc -- works  
\-- Check size of void\*  
\-- Check size of void\* - done  
\-- Check for working CXX compiler: /usr/lib/ccache/c++  
\-- Check for working CXX compiler: /usr/lib/ccache/c++ -- works  
\-- Configuring done  
\-- Generating done  
\-- Build files have been written to: /workspace/cmakepro/tuliba/build  
执行*make* 命令  
\[root@localhost build\]\# **make**  
Scanning dependencies of target **app**  
\[100%\]  Building CXX object src/CMakeFiles/app.dir/main.o  
Linking CXX executable **../../bin/app**  
\[100%\] Built target app  
回到*tuliba/bin* 目录  
\[root@localhost build\]\# cd ..  
\[root@localhost tuliba\]\# cd bin/  
\[root@localhost bin\]\# ls  
app  
运行可执行文件*app*  
\[root@localhost bin\]\# **./app**  
Hello World  
\[root@localhost bin\]\#