Hello I compiled & installed gcc4.4 using macports. When I try to compile: #include <thread> ... std::thread t(handle); t.join(); .... the compiler returns: cserver.cpp: In member function 'int CServer::run()': cserver.cpp:48: error: 'thread' is not a member of 'std' cserver.cpp:48: error: expected ';' before 't' cserver.cpp:49: error: 't' was not declared in this scope std::cout <<... works fine. Can anyone help me? Thanks!