cmake 构建 Visual Studio C++项目

本文使用Win10 X64, VS2019

1. 单/多个文件 ADD_EXECUTABLE 示例：

1) 首先建立文件夹.CMakeProj\CMakeProject1\src
2) 在文件夹Src中建立两个文件CMakeProject1.cpp和CMakeLists.txt
3) CMakeProject1.cpp:

#include "CMakeProject1.h"
using namespace std;
int main()
{
    hello();
    cout << "Hello CMake." << endl;
    return 0;
}

hello.cpp

using namespace std;
int hello()
{
    cout << "Hello World." << endl;
    return 0;
}

4) CMakeLists.txt

PROJECT (HELLO)
# 单个文件
# SET (SRC_LIST main.cpp)
# 多个文件
INCLUDE_DIRECTORIES (${PROJECT_SOURCE_DIR}/lib)
SET (SRC_LIST hello.cpp CMakeProject1.cpp)

SET (EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)    
ADD_EXECUTABLE (hello ${SRC_LIST})
# ADD_EXECUTABLE (hello  "hello.cpp" "CMakeProject1.cpp" "CMakeProject1.h")

5) 打开：开始 --> Microsoft Visual Studio 2019 --> Visual Studio Tools (工具) --> VS2012 x86 Native Tools Command Prompt (命令行）--> 开发者命令提示/开发者命令PowerShell
本文使用的是PowerShell

6) 进入到CMakeTest/Src目录，执行以下代码
mkdir build & cdbuild cmake .. -G "NMake Makefiles" nmake

7) build\CMakeProject1\下生成hello.exe。

2.生成"静态"库文件 ADD_LIBRARY 示例

4) CMakeLists.txt

PROJECT (HELLO)
    
INCLUDE_DIRECTORIES (${PROJECT_SOURCE_DIR}/lib)
SET (SRC_LIBHELLO hello.c)
SET (SRC_APP CMakeProject1.cpp)

SET (LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
# 未指定：SHARED，默认生成静态库 
ADD_LIBRARY (libhello ${SRC_LIBHELLO})
# 如果想指定生成库的名称,可以添加一句： 
SET_TARGET_PROPERTIES(libhello PROPERTIES OUTPUT_NAME "hello")


# SET (EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
# ADD_EXECUTABLE (hello ${SRC_APP})
# TARGET_LINK_LIBRARIES(hello libhello)

3.生成"动态"库文件 ADD_LIBRARY SHARED 示例

1) 头文件，定义api接口输出类型。

#ifndef _VISIBILITY_HPP_
#define _VISIBILITY_HPP_

#if defined(_WIN32)
#if defined(LIB_BUILD_SHARED)
#if defined(LIB_BUILD_EXPORTS)
#define LIB_API_EXPORT __declspec( dllexport )
#else
#define LIB_API_EXPORT __declspec( dllimport )
#endif // LIB_BUILD_EXPORTS
#else
#define LIB_API_EXPORT
#endif // LIB_BUILD_SHARED
#else
#define LIB_API_EXPORT
#endif // _WIN32

#endif // _VISIBILITY_HPP_

2）CMakeList.txt 文件

CMAKE_MINIMUM_REQUIRED(VERSION 2.8)

SET(SRC_LIB hello.c)

ADD_DEFINITIONS("-DLIB_BUILD_EXPORT")

ADD_LIBRARY(libhello SHARED ${SRC_LIB})

SET(LIBRARY_OUTPUT_PATH${PROJECT_BINARY_DIR}/bin)