[Bug preprocessor/114007] gcc chokes on __has_cpp_attribute(clang::unsafe_buffer_usage)

[iains at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114007

--- Comment #10 from Iain Sandoe <iains at gcc dot gnu.org> ---
indeed, it seems clang does not define __has_cpp_attribute for -std=c11 c
compilations, whereas GCC does.