[Boost-users] [config] disabling _MSC_EXTENSIONS disables win32

Subject: [Boost-users] [config] disabling _MSC_EXTENSIONS disables win32
From: Igor R (boost.lists_at_[hidden])
Date: 2009-11-11 07:31:15

Hello,

In visualc.hpp I found the following:

#if !defined(_MSC_EXTENSIONS) && !defined(BOOST_DISABLE_WIN32)
#  define BOOST_DISABLE_WIN32
#endif

I.e., disabling MSVC-specific exnetions (/Za) disables also WIN32,
which, in turn, leads to undefined BOOST_WINDOWS.
So if I try to compile my project with /Za, nothing compiles, because
there're lot of places where BOOST_WINDOWS is used to select
platform-dependant implementation (eg., in ASIO).
But if I understand correctly, the purpose of disabling MSVC
*language* extenstions is to ensure that the code is portable &
standard-complient. So it seems to be incorrect to imply from this
BOOST_DISABLE_WIN32.

Am I wrong?

Thanks.