https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95413
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #1)
> > I strongly suspect the CET patches, but haven't yet figured out what's going
> > wrong.
>
> How did CET changes add -march=i486 -mtune=i686? Can you bisect to the
> commit?
-march=i486 -mtune=i686 is something added by libgomp/configure.tgt:
# Note that bare i386 is not included here. We need cmpxchg.
i[456]86-*-linux*)
config_path="linux/x86 linux posix"
case " ${CC} ${CFLAGS} " in
*" -m64 "*|*" -mx32 "*)
;;
*)
if test -z "$with_arch"; then
XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
fi
esac
;;
But that should enable it only when building the 32-bit libgomp and not 32-bit.
So something else must be adding -m64 somewhere later.
