I am getting following error with g++ (GCC) 4.5.3 on Cygwin 1.7.20: In file included from libs\test\src\debug.cpp:16:0: ./boost/test/impl/debug.ipp: In function ‘bool boost::debug::attach_debugger(bool)’: ./boost/test/impl/debug.ipp:899:9: error: ‘::select’ has not been declared