Change how _LIBCPP_HAS_NO_ADVANCED_SFINAE gets set. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@136596 91177308-0d34-0410-b5e6-96231b3b80d8 
diff --git a/include/__config b/include/__config index ced9a95..2f75ed8 100644 --- a/include/__config +++ b/include/__config 
@@ -148,7 +148,7 @@  #define _LIBCPP_HAS_NO_AUTO_TYPE  #endif   -#if __clang_major__ < 3 +#if !(__has_feature(cxx_access_control_sfinae)) || !__has_feature(cxx_trailing_return)  #define _LIBCPP_HAS_NO_ADVANCED_SFINAE  #endif