1 --- a/b/boost/boost/config/workaround.hpp
2 +++ a/b/boost/boost/config/workaround.hpp
5 #define BOOST_INTEL_WORKAROUND_GUARD 0
8 +#ifndef __clang_major__
9 +#define __clang_major___WORKAROUND_GUARD 1
11 +#define __clang_major___WORKAROUND_GUARD 0
14 // Always define to zero, if it's used it'll be defined my MPL:
15 #define BOOST_MPL_CFG_GCC_WORKAROUND_GUARD 0