Index: cfe/trunk/lib/Headers/__clang_cuda_runtime_wrapper.h =================================================================== --- cfe/trunk/lib/Headers/__clang_cuda_runtime_wrapper.h +++ cfe/trunk/lib/Headers/__clang_cuda_runtime_wrapper.h @@ -270,12 +270,18 @@ // include guard from math.h wrapper from libstdc++. We have to undo the header // guard temporarily to get the definitions we need. #pragma push_macro("_GLIBCXX_MATH_H") +#pragma push_macro("_LIBCPP_VERSION") #if CUDA_VERSION >= 9000 #undef _GLIBCXX_MATH_H +// We also need to undo another guard that checks for libc++ 3.8+ +#ifdef _LIBCPP_VERSION +#define _LIBCPP_VERSION 3700 +#endif #endif #include "math_functions.hpp" #pragma pop_macro("_GLIBCXX_MATH_H") +#pragma pop_macro("_LIBCPP_VERSION") #pragma pop_macro("__GNUC__") #pragma pop_macro("signbit")