windows系统cmake生成动态库无lib文件解决方法

news2025/7/6 21:48:44

作为cmake初学者，在windows系统下使用cmake生成c++动态库时出现了下图所示问题，是关于lib文件。找了一圈，也没发现生成有lib文件。在这里插入图片描述
在google上查，才发现windows系统下动态库生成lib文件，还需要添加以下命令：

#windows系统动态库生成lib文件命令
set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)

生成动态库Demo（链接在此）

文件目录架构：
——源文件目录
——hello-world.cpp
——CMakeLists.txt
——message
——|——Message.cpp
——|——CMakeLists.txt
——|——include
————|——Message.hpp

库源码文件在message目录，其中新建了文件夹include放置头文件Message.hpp。
库文件的CMakeLists.txt：

# set minimum cmake version
cmake_minimum_required(VERSION 3.0 FATAL_ERROR)

# project name and language
project(recipe-03 LANGUAGES CXX)

set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)

#配置编译后的输出路径
# 设定动态链接库的存储路径
SET(LIBRARY_OUTPUT_PATH  ${CMAKE_CURRENT_LIST_DIR}/../bin)

include_directories(./include)
# generate a library from sources
add_library(message
  SHARED
  Message.cpp
  )

Message库源代码：

Message.hpp

#pragma once

#include <iosfwd>
#include <string>

class Message {
public:
  Message(const std::string &m) : message_(m) {}

  friend std::ostream &operator<<(std::ostream &os, Message &obj) {
    return obj.printObject(os);
  }

private:
  std::string message_;
  std::ostream &printObject(std::ostream &os);
};

Message.cpp

#include "Message.hpp"

#include <iostream>
#include <string>

std::ostream &Message::printObject(std::ostream &os) {
  os << "This is my very nice message: " << std::endl;
  os << message_;

  return os;
}

主CMakeLists.txt

# set minimum cmake version
cmake_minimum_required(VERSION 3.0 FATAL_ERROR)

# project name and language
project(recipe-03 LANGUAGES CXX)



#配置编译后的输出路径
 # 设定动态链接库的存储路径
 SET(LIBRARY_OUTPUT_PATH  ${CMAKE_CURRENT_LIST_DIR}/../bin)

include_directories(./include)
# generate a library from sources
add_library(message
  SHARED
    Message.cpp
  )

include_directories(./include)

main.cpp

#include "Message.hpp"

#include <iostream>
#include <string>

std::ostream &Message::printObject(std::ostream &os) {
  os << "This is my very nice message: " << std::endl;
  os << message_;

  return os;
}