Since the boost thread headers can now be used without including <windows.h>, can I commit the following patch to boost/config/suffix.hpp in order to stop BOOST_DISABLE_THREADS being defined just because the user specified /Za on the command line? There was a discussion about this back in May, but I don't remember there being a definite outcome. Anthony Index: boost/config/suffix.hpp =================================================================== --- boost/config/suffix.hpp (revision 41433) +++ boost/config/suffix.hpp (working copy) @@ -190,16 +190,6 @@ # endif // -// If Win32 support is turned off, then we must turn off -// threading support also, unless there is some other -// thread API enabled: -// -#if defined(BOOST_DISABLE_WIN32) && defined(_WIN32) \ - && !defined(BOOST_DISABLE_THREADS) && !defined(BOOST_HAS_PTHREADS) -# define BOOST_DISABLE_THREADS -#endif - -// // Turn on threading support if the compiler thinks that it's in // multithreaded mode. We put this here because there are only a // limited number of macros that identify this (if there's any missing