I don't see how that could ever be portable - there's no guarantee that every platform has such a header?
BTW we normally only add Boost.Config macros for Boost's internal use, is this such a case? If so some more information on the problem you want to solve might help...
Cheers, John. I want such macro when I use Escape Sequence, ioctl, etc... This also applies to Boost, for example Boost.Thread switches header itself.
Boost.Config switches header at each platform, nevertheless does not provide that way. I think that's too bad. However, if it is determined to be unsuitable to provide at Boost.Config, I agree. Thanks. -- TAKAHASHI Kohei College of Information Science, University of Tsukuba private mail: flast@flast.jp others: flast@ac-room.org s0911476@coins.tsukuba.ac.jp