https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65559

--- Comment #25 from Rainer Emrich <rai...@emrich-ebersheim.de> ---
(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.

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