https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67250
--- Comment #9 from Jeff Hammond <jeff.science at gmail dot com> --- First, you will not accept the fusion of cpp+gfortran behavior as a feature request? Is there a reason other than you do not want to do it because you are already busy? Second, true, but that doesn't stop gcc from supporting inline assembly outside of ISO C11, or stop gfortran from being compatible with vendor implementations of https://gcc.gnu.org/onlinedocs/gfortran/Cray-pointers.html, or of supporting any number of other non-standard features. In short, "it's not in the standard, therefore it's fine to break user experience" seems pretty weak here. It's fine if you tell me that you do not care about my needs and will not implement it, but please don't use ISO as the excuse.