https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89410
--- Comment #23 from Jonny Grant <jg at jguk dot org> --- (In reply to Segher Boessenkool from comment #22) > #line 0 isn't valid C code. If it causes problems we should just > error on it (and perhaps even when it doesn't (yet) cause problems). Would it be better if I created a separate PR for this? #line 0 ?