Detection of C++0x features broken with latest Intel compiler

[sansottera@…]

prompt$ icpc -v icpc version 12.1.0 (gcc version 4.4.5 compatibility)

Detection of C++0x features should *NOT* be base on STDC_HOSTED but on GXX_EXPERIMENTAL_CXX0X.

prompt$ icpc -dM -E test.cpp | grep CXX0X #define GTHREADS_CXX0X 1

prompt$ icpc -std=c++0x -dM -E test.cpp | grep CXX0X #define GXX_EXPERIMENTAL_CXX0X 1 #define GTHREADS_CXX0X 1

prompt$ icpc -dM -E test.cpp | grep STDC_HOSTED #define STDC_HOSTED 1

prompt$ icpc -std=c++0x -dM -E test.cpp | grep STDC_HOSTED #define STDC_HOSTED 1

I classify this bug as showstopper since it prevents boost from compiling unless the user messes with boost's source code. The fix to apply is in boost/config/compiler/intel.hpp. The correct detection code should be:

#if (!(defined(_WIN32)

defined(_WIN64)) && defined(GXX_EXPERIMENTAL_CPP0X))

# define BOOST_INTEL_STDCXX0X #endif

[John Maddock]

(In [74573]) Tentative fox for C++0x detection in Intel 12.1 and later. Refs #5941. Refs #5878.

[John Maddock]

(In [74889]) Merge Boost.Config changes from Trunk - numerous small bug fixes plus a new Cray C++ config. Fixes #5607. Fixes #5941. Fixes #5878.