[boost] 1704 [any] 4512 warning from VC8/9 on warning level 4

Hi, I'm wondering if we care about level 4 MSVC warnings. As far as I remember default warning level is lower and I don't see why boost sources should have MSVC-specific pragmas just to disable level 4 warnings. I'd rather resolved the bug as invalid. As an alternative, we could // Beginning of file #include <boost/config/warnings_off.hpp> ... // end of file #include <boost/config/warnings_on.hpp> and have an option BOOST_CONFIG_TURN_WARNINGS_OFF. Though, I don't know whether it's doable for other compilers. -- Alexander