Visual Studio 2008 incorrectly enables BOOST_HAS_PRAGMA_DETECT_MISMATCH

[Daniel Krügler <daniel.kruegler@…>]

The configuration file

boost/config/compiler/visualc.hpp

incorrectly enables support for pragma detect_mismatch for Visual Studio 2008 as of the lines 107-109:

#if _MSC_VER >= 1500  // 150X == VC++ 9.0
#  define BOOST_HAS_PRAGMA_DETECT_MISMATCH
#endif

This has the effect that compliation against MSVC++ 9.0 leads to a series of warnings such as:

boost/type_index.hpp(37) : warning C4068: unknown pragma

According to my experience - and covered by the information provided here [The following should be interpreted as an URL]:

http boost.2283326.n4.nabble.com Boost-and-Microsoft-s-SECURE-SCL-td3025203.html

the new pragma exists since Visual Studio 2010 (_MSC_VER == 1600)

[John Maddock]

Nod.

This was fixe din ​https://github.com/boostorg/config/pull/43