#define BOOST_THREAD_VERSION 4

#include <iostream> // std::cout

#include <boost/thread/scoped_thread.hpp>

#include <boost/thread/with_lock_guard.hpp>

boost::mutex m; // protection for 'x' and 'std::cout'

int x;

#if defined(BOOST_NO_CXX11_LAMBDAS) || (defined BOOST_MSVC && _MSC_VER < 1700)

void print_x() {

++x;

std::cout << "x = " << x << std::endl;

}

void job() {

}

#else

void job() {

}

#endif

int main() {

}