cmake生成so

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文件目录结构

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├── library
│   ├── CMakeLists.txt
│   ├── libMySharedLib.a
│   ├── library.cpp
│   └── library.h
└── test
    ├── CMakeLists.txt
    ├── main.cpp
    └── test

library

library.h

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#ifndef MYSHAREDLIB_LIBRARY_H
#define MYSHAREDLIB_LIBRARY_H

// 打印 Hello World!
void hello();

// 使用可变模版参数求和
template <typename T>
T sum(T t)
{
    return t;
}

template <typename T, typename ...Types>
T sum(T first, Types ... rest)
{
    return first + sum<T>(rest...);
}

#endif

library.cpp

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#include <iostream>
#include "library.h"

void hello() {
    std::cout << "Hello, World!" << std::endl;
}

CMakeLists.txt

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cmake_minimum_required(VERSION 2.8)

project(MySharedLib)

set(CMAKE_CXX_STANDARD 11)

# 动态库
# add_library(MySharedLib SHARED library.cpp library.h)
# 静态库
add_library(MySharedLib STATIC library.cpp library.h)

编译 MySharedLib

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cd library
cmake .
make

test

man.cpp

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#include <iostream>
#include "library.h"
using std::cout;
using std::endl;

int main() {

    hello();
    cout << "1 + 2 = " << sum(1, 2) << endl;
    cout << "1 + 2 + 3 = " << sum(1, 2, 3) << endl;

    return 0;
}

CMakeLists.txt

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#cmake版本
cmake_minimum_required(VERSION 2.8)
 
#项目名：test
project(test)
 
# C++11 编译
set(CMAKE_CXX_STANDARD 11)
 
#指定生成的版本
set(CMAKE_BUILD_TYPE DEBUG)
 
#指定编译选项
set(CMAKE_CXX_FLAGS_DEBUG "-g -Wall")
 
#指定头文件目录
include_directories(${CMAKE_SOURCE_DIR}/../library)
 
#链接库路径
link_directories(${CMAKE_SOURCE_DIR}/../library)
 
#链接库，MySharedLib为库名
link_libraries(MySharedLib)
 
#生成目标文件 
add_executable(test main.cpp)
 
# 链接 库文件 MySharedLib 库 (无论动态库还是静态库都是该命令)
target_link_libraries(test MySharedLib)

编译并运行 test

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cd test
cmake .
make
./test