include move in posix_api.cpp for _SECURE_SCL with vc80

[Luke Elliott <lukester_null@…>]

In my build environment I turn off _SECURE_SCL by adding some defines to visualc.hpp.

The causes a small issue in posix_api.cpp where the includes are:

#include <cstdio>
#include <boost/regex.hpp>
#include <boost/cregex.hpp>

so I have to patch that to

#include <boost/regex.hpp>
#include <boost/cregex.hpp>
#include <cstdio>

such that the _SECURE_SCL definition is correct before any compiler headers are included.

No big deal, but I thought I'd mention as it should be harmless change for everyone and would mean one less patch to maintain against upstream boost!

Best regards

Luke Elliott.

[John Maddock]

(In [79152]) Make sure at least one Boost header (and therefore Boost.Config) precedes std lib headers so that defines in boost/config/user.hpp are seen by system headers. Fixes #7009.