https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60014
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:
What |Removed |Added
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Keywords| |diagnostic, easyhack
Last reconfirmed|2014-06-10 00:00:00 |2016-6-23
--- Comment #7 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Fredrik Hallenberg from comment #6)
> Reconfirmed with gcc 6.1.1
I don't think anything will change until someone volunteers to debug and
propose a fix: https://gcc.gnu.org/wiki/DebuggingGCC
The problem is in c-family/c-ppoutput.c
It seems print.prev_was_system_token is not always correctly updated. In
particular, we may call do_line_change at various places and emit a sysp
linemarker in print_line_1, but then not update print.prev_was_system_token. It
only makes sense to update its value within this function, so it is
synchronized with the corresponding linemarkers.
