https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64864
--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #2) > I really think this is porting_to.html material, rather than a bug report. I agree that the issue is borderline. Feel free to close this bug. What is gained by these new linemarkers?