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From: "vital.had at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/105710] ICE on powerpc darwin with TLS enabled
Date: Tue, 24 May 2022 14:14:57 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105710

--- Comment #9 from Sergey Fedorov <vital.had at gmail dot com> ---
(In reply to Iain Sandoe from comment #8)
> If we try to do this for every irrelevant configure option, that's going =
to
> be quite a lot of work.
>=20
> Really [IMO, at least], configure options are not intended for end-users=
=20
> - the goal for end users is that:
>=20
>  configure --prefix=3Dxxxxxx && make && install
>=20
> should 'just work' (OK, we don't quite achieve that, but actually we're
> quite close)
>=20
> adding out-of-band configure options is for distributions and expert use
> (we assume distributions are expert in the options they need to apply to=
=20
> customise the install).
>=20
> However, of course, if you want to write patches to respond to all the
> options
> that Darwin does not need, I'm happy to review :)

I agree with Iain here, in fact it is a problem with Macports, since it=E2=
=80=99s
`--disable-tls` option lists a reason totally unrelated to PPC or Darwin
version:

># see https://lists.macports.org/pipermail/macports-dev/2017-August/036209=
.html
># --disable-tls does not limit functionality
># it only determines how std::call_once works
>configure.args-append \
>                    --disable-tls

Then it was me who misunderstood Iain=E2=80=99s reply in my PR to Ruby. I t=
hought that
Macports disables TLS for no clear reason, while Ruby wants it provided by =
the
compiler, and tried to build it with `--enable-tls`.
Sorry for a confusion. I just had an impression that all ICEs have to be
reported.=