编译Boost线程代码报undefined reference to boost::thread错误解决
问题描述
学习使用Boost.Asio库时,参照官方教程的多线程同步示例编写代码,此前非线程相关的示例均可正常编译运行,但涉及线程的代码编译时出现大量链接错误:
FAILED: untitled : && /usr/bin/c++ -lboost_system -g CMakeFiles/untitled.dir/main.cpp.o -o untitled && : /usr/bin/ld: CMakeFiles/untitled.dir/main.cpp.o: warning: relocation against `_ZTVN5boost6detail16thread_data_baseE' in read-only section `.text._ZN5boost6detail16thread_data_baseC2Ev[_ZN5boost6detail16thread_data_baseC5Ev]' /usr/bin/ld: CMakeFiles/untitled.dir/main.cpp.o: in function `boost::detail::thread_data_base::thread_data_base()': /home/user_me/Sys_Builds/boost_1_79_0/boost/thread/pthread/thread_data.hpp:162: undefined reference to `vtable for boost::detail::thread_data_base' /usr/bin/ld: CMakeFiles/untitled.dir/main.cpp.o: in function `boost::thread::start_thread()': /home/user_me/Sys_Builds/boost_1_79_0/boost/thread/detail/thread.hpp:182: undefined reference to `boost::thread::start_thread_noexcept()' /usr/bin/ld: CMakeFiles/untitled.dir/main.cpp.o: in function `boost::thread::~thread()': . . .
使用的Boost版本为1.79.0,从官方网站下载源码后,在源码目录执行以下两条命令完成安装:
./bootstrap.sh ./b2 install
安装完成后使用CLion作为IDE,在CMake配置中仅添加了Boost头文件包含路径:
include_directories("/home/user_me/Sys_Builds/boost_1_79_0")
此前Boost其他组件均可正常使用,唯独线程相关功能报错,查阅多个同类问题的解决方案均未生效。
解决方案
经排查,错误原因是仅配置了Boost头文件路径,未正确链接thread组件库。修改CMakeLists.txt配置如下即可解决问题:
#Project details cmake_minimum_required(VERSION 3.22) project(untitled) #Setting cmake standard set(CMAKE_CXX_STANDARD 20) set(CMAKE_CXX_STANDARD_REQUIRED ON) #Boost config section find_package(Boost COMPONENTS thread REQUIRED) #Adding exec add_executable( ${PROJECT_NAME} main.cpp ) target_link_libraries( ${PROJECT_NAME} Boost::thread )
内容的提问来源于stack exchange,提问作者Piotrek Wójtowicz
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