[r11-6672 Regression] Failed to bootstrap on Linux/x86_64

[H.J. Lu]

On Thu, Jan 14, 2021 at 12:33 PM Jakub Jelinek <jakub@redhat.com> wrote:
>
> On Thu, Jan 14, 2021 at 10:52:24AM -0800, sunil.k.pandey via Gcc-patches wrote:
> > On Linux/x86_64,
>
> It breaks x86_64-linux build pretty much everywhere.
> libatomic (but as well libgomp and libitm) uses -march=i486 in certain cases.
> While for --with-arch or --with-arch_32 configured compilers it wouldn't be
> that hard to just check if the provided arch isn't i386 only, we shouldn't
> stop supporting compiler built with the defaults and I'm afraid that means
> -march=i386 by default for 32-bit code.
>
>         Jakub

This is an old bug:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70454

I am reviving my old patches now.

-- 
H.J.