[boost] [thread] explicit constructor in thread

any particular reason why the function sig accepted is function < void ( void ) > instead of function < void ( void * ) > which you might deduce as more complete for at least these four platforms: thread function signatures ( noted in ACE ) posix = function< void * ( void * ) > win32 = function < DWORD ( void * ) > vxworks without pthreads = function < int (...) > // if such a thing were possible?? pSoS = function < void (void *) > any other examples or thoughts ? matt