[Bug lto/54962] Strange-looking diagnostics from diagnostic_report_current_module() from warnings emitted during LTO

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54962

--- Comment #7 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Manuel López-Ibáñez from comment #6)
> (In reply to Dave Malcolm from comment #0)
> > In both cases, the "In file included from " hierarchies look bogus: the
> > files are being directly compiled, not included.
> > 
> 
> Please try the patch in
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65536#c21

You need also the libcpp hunks from
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65536#c18