https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53182
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to sandra from comment #3) > I also think there are other compilers that have > copied the GCC attribute syntax; do they also recognize both the underscore > and non-underscore name variants? Yes (confirmed for Clang and Intel, I don't know about others).