one question with C++ with Boost library

Question

I am using Ubuntu + Eclipse and installed boost(not sure correct). I installed Boost using apt-get install libboost*

I tested some simple code, it seems the boost working right.

However, when I try to learn the thread part, the code below does not work.

#include <boost/thread/thread.hpp> 
#include <iostream>
using namespace std;

void hello()
{
   cout<<"hello!"<<endl;
}   

int main()
{
    boost::thread thrd(&hello);
    cout<<"Just a test!"<<endl;
}

The error information is as follow, there are 4 errors.

Severity and Description Path Resource Location Creation Time Id
/usr/local/include/boost/thread/detail/thread.hpp undefined reference to `boost::detail::thread_data_base::~thread_data_base()'  FirstCppProject line 40 1260656497961 200


Severity and Description Path Resource Location Creation Time Id
/usr/local/include/boost/thread/detail/thread.hpp undefined reference to `boost::thread::start_thread()'  FirstCppProject line 191 1260656497967 202


Severity and Description Path Resource Location Creation Time Id
/usr/local/include/boost/thread/pthread/thread_data.hpp undefined reference to `vtable for boost::detail::thread_data_base'  FirstCppProject line 65 1260656497965 201


Severity and Description Path Resource Location Creation Time Id
undefined reference to `boost::thread::~thread()' FirstCppProject test.cpp line 15 1260656497959 199

Please forgive me if my question is too naive. Please offer any information you think might help me out.

Answer 1

you have to link against the thread library libboost_thread_...

Answer 2

With Boost sometimes you just need to tell your linked where the libraries are and it will figure out which one to link against.