https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60512
--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #7) > N.B. checking #if __cpp_attributes works correctly with all versions of GCC > (with a true result since 4.9.2 and false otherwise), whereas adding a new > __has_feature extension and using #if __has_feature(attributes) would only > give the right answer for GCC releases that support the feature. s/support the feature/support the __has_feature extension/
