#include <boost/filesystem.hpp>
#include <boost/thread.hpp>

namespace
{

  boost::mutex m1;
  boost::recursive_mutex m2;

  void
  threadmain()
  {
    boost::lock_guard<boost::mutex> lock1(m1);
    boost::lock_guard<boost::recursive_mutex> lock2(m2);

    boost::filesystem::path p(boost::filesystem::current_path());
  }

}

int main() {
  boost::thread foo(threadmain);
  foo.join();

  return 0;
}