下面通过一个小例子来说明cmake编译一个c++项目，生成可执行文件：
整理目录结构：
CMake Lists.txt addlib build main.cpp
电脑上没有tree命令，也不大敢截图，将就着看看，其中build是cmake编译指定的路径，addlib下面也有一个头文件和源文件 ，还有一个CmakeLists.txt,可以看下：
CMake Lists.txt library.cpp library.h
先看各个文件的代码：
addlib/library.h:
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#ifndef CPPPROJECT_LIBRARY_H#define CPPPROJECT_LIBRARY_H int acc_add(int); #endif |
addlib/library.cpp:
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#include "library.h"#include <iostream> void hello(){ std::cout<<"hello world"<<std::endl;} int acc_add(int n){ int sum=0; for(int i=0;i<n;i++){ sum+=i; } return sum;} |
addlib/CMakeLists.txt:
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cmake_minimum_required(VERSION 3.10)project(accliblibrary) set(CMAKE_CXX_STANDARD 11) add_library(accliblibrary SHARED library.cpp library.h) # 诉生成一个库文件。 |
main.cpp:
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#include <iostream>#include <string>#include "addlib/library.h"using namespace std;int main(){ int n=10; int ans=acc_add(n); cout<<"1+....+"<<n<<"="<<ans<<endl; return 0;} |
CMakeLists.txt:
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cmake_minimum_required(VERSION 3.10)project(cppproject) set(CMAKE_CXX_STANDARD 11) add_subdirectory(acclib) add_executable(cppproject main.cpp) #生成一个可执行的文件 target_link_libraries(cppproject accliblibrary) |
下面就是编译该项目，生成可执行文件：
cd build/
cmake ..
-- The C compiler identification is AppleClang 8.0.0.8000042
-- The CXX compiler identification is AppleClang 8.0.0.8000042
-- Check for working C compiler: /Library/Developer/CommandLineTools/usr/bin/cc
-- Check for working C compiler: /Library/Developer/CommandLineTools/usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /Library/Developer/CommandLineTools/usr/bin/c++
-- Check for working CXX compiler: /Library/Developer/CommandLineTools/usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/zhoumeixu/Documents/cmakedemo/build
make:
Scanning dependencies of target addliblibrary
[ 25%] Building CXX object addlib/CMakeFiles/addliblibrary.dir/library.cpp.o
[ 50%] Linking CXX shared library libaddliblibrary.dylib
[ 50%] Built target addliblibrary
Scanning dependencies of target cmakedemo
[ 75%] Building CXX object CMakeFiles/cmakedemo.dir/main.cpp.o
[100%] Linking CXX executable cmakedemo
[100%] Built target cmakedemo
./cmakedemo
1+....+10=45
这篇文章就介绍下面，下面服务器之家小编将继续为大家介绍
原文链接：https://blog.csdn.net/luoyexuge/article/details/80290015
