In problem (2) in my previous email I cited code Listing 2, but this compilation error was actually generated by code Listing 3, as follows: // This program is identical to // listing2.cpp except that it // uses Boost.Bind to simplify // the creation of a thread that // takes data. #include <boost/thread/thread.hpp> #include <boost/thread/mutex.hpp> #include <boost/bind.hpp> #include <iostream> boost::mutex io_mutex; void count(int id) { for (int i = 0; i < 10; ++i) { boost::mutex::scoped_lock lock(io_mutex); std::cout << id << ": " << i << std::endl; } } int main(int argc, char* argv[]) { boost::thread thrd1(boost::bind(&count, 1)); boost::thread thrd2(boost::bind(&count, 2)); thrd1.join(); thrd2.join(); return 0; } The errors are: listing3.C:29: no matching function for call to `bind ({unknown type}, int)' listing3.C:31: no matching function for call to `bind ({unknown type}, int)' Thanks [Non-text portions of this message have been removed]