Problems encountered when using boost in C/C++ basic Ubuntu, undefined reference to 'boost::system::generic_category()'

For engineering projects built by cmake:

# CmakeList.txt添加如下内容
add_definitions(-DBOOST_ERROR_CODE_HEADER_ONLY)

# 或者
find_package(Boost 1.55.0 REQUIRED COMPONENTS system filesystem)
include_directories(untitled ${Boost_INCLUDE_DIRS})
link_directories(untitled ${Boost_LIBRARY_DIRS})
target_link_libraries(untitled ${Boost_LIBRARIES})

For the g++ compiler, you need to add compilation options to link the library:

出现的问题：
/usr/include/boost/system/error_code.hpp:221: undefined reference to `boost::system::generic_category()'
/usr/include/boost/system/error_code.hpp:222: undefined reference to `boost::system::generic_category()'
/usr/include/boost/system/error_code.hpp:223: undefined reference to `boost::system::system_category()'

solve:

g++ -o test main.cpp -lboost_system

question:

undefined reference to 'vtable for boost::detail::thread_data_base'

undefined reference to 'boost::thread::start_thread_noexcept()'

undefined reference to 'boost::thread::detach()'

solve:

g++ -o main main.c -lboost_system -lboost_thread

Summary: To put it bluntly, if there is any missing library, just link the specified library later.

example:

#include<boost/thread.hpp>
using  namespace  boost; //名字空间

#include<iostream>
using namespace std;

#pragma comment(lib, "libboost_thread-vc100-mt-gd-x32-1_67.lib")

void  ThreadFun(string  & threadName)
{
   for (size_t i = 0; i < 5; i++)
   {
   	printf("%s 执行！\n", threadName.c_str());

   	//线程睡眠
   	this_thread::sleep(posix_time::seconds(1));
   }
}

int main()
{ 
   //定义线程对象,线程执行函数，函数参数，构造
   thread  t1(ThreadFun, string("线程1"));//立即运行

   thread  t2(ThreadFun, string("线程2"));//立即运行

   //t1.join();//先阻塞，等待子线程执行完毕后返回
   //t2.join();//先阻塞，等待子线程执行完毕后返回

   //如果线程还没结束，最多等待3秒
   t1.timed_join(posix_time::seconds(8));

   cout << "main结束!" << endl;

   getchar();
   return 0;
}

 

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