https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65559
--- Comment #28 from Matt Breedlove <breedlove.matt at gmail dot com> ---
(In reply to Rainer Emrich from comment #26)
> (In reply to Rainer Emrich from comment #25)
> > (In reply to Richard Biener from comment #24)
> > > Note that the issue should only cause option merging to be skipped for
> > > files
> > > in archives (and that, too, on x86_64-linux). Though compared to the 4.9
> > > branch
> > > we do
> > >
> > > fd = open (argv[i], O_RDONLY);
> > > if (fd == -1)
> > > {
> > > lto_argv[lto_argc++] = argv[i];
> > > continue;
> > > }
> > >
> > > vs.
> > >
> > > fd = open (argv[i], O_RDONLY);
> > > if (fd == -1)
> > > continue;
> > >
> > > so we add the file to later processing even if we failed to open it.
> > > Thus,
> > > does removing _that_ also fix the issue?
> >
> > Native bootstrap for c,c++ started on x86_64-w64-mingw32. I will run the
> > testsuite afterwards. Results expected in about 4 hours.
>
> Tested patch:
>
> Index: gcc/lto-wrapper.c
> ===================================================================
> --- gcc/lto-wrapper.c (Revision 222611)
> +++ gcc/lto-wrapper.c (Arbeitskopie)
> @@ -936,10 +936,7 @@ run_gcc (unsigned argc, char *argv[])
> }
> fd = open (argv[i], O_RDONLY);
> if (fd == -1)
> - {
> - lto_argv[lto_argc++] = argv[i];
> - continue;
> - }
> + continue;
>
> if (find_and_merge_options (fd, file_offset, LTO_SECTION_NAME_PREFIX,
> &fdecoded_options, &fdecoded_options_count,
>
>
>
> Doesn't help, lto failures back again!
Rainer,
If you don't mind, what were the failures you were getting on this one or did
the original reported errors simply return?