I am trying to build a project using Boost's Asio and I am having some trouble. Initially, I tried to build the project without any additional libraries since everything is supposedly in the header files.

The program I am trying to build looks like this:

#include <iostream>
#include <boost/asio.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>

int main()
{
    boost::asio::io_service io;
    boost::asio::deadline_timer t(io, boost::posix_time::seconds(5));

    t.wait();

    std::cout << "Hello, world!" << std::endl;

    return 0;
}

It can be found here on Boost's website.

So, initially I just had:

-I /usr/include/boost_1_40_0

This resulted in the following errors:

make -k all
Building target: HelloWorld
Invoking: GCC C++ Linker
g++  -o"HelloWorld"  ./main.o  
./main.o: In function `__static_initialization_and_destruction_0':
/usr/include/boost_1_40_0/boost/system/error_code.hpp:205: undefined reference to `boost::system::get_system_category()'
/usr/include/boost_1_40_0/boost/system/error_code.hpp:206: undefined reference to `boost::system::get_generic_category()'
/usr/include/boost_1_40_0/boost/system/error_code.hpp:211: undefined reference to `boost::system::get_generic_category()'
/usr/include/boost_1_40_0/boost/system/error_code.hpp:212: undefined reference to `boost::system::get_generic_category()'
/usr/include/boost_1_40_0/boost/system/error_code.hpp:213: undefined reference to `boost::system::get_system_category()'
./main.o: In function `boost::asio::error::get_system_category()':
/usr/include/boost_1_40_0/boost/asio/error.hpp:218: undefined reference to `boost::system::get_system_category()'
./main.o: In function `error_code':
/usr/include/boost_1_40_0/boost/system/error_code.hpp:312: undefined reference t
linux boost boost-asio linker-errors deadline-timer
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