Re: git: 28cecfe27964 - main - libc: Restrict ATOMIC_VAR_INIT for C23 conformance

From: Dag-Erling_Smørgrav <des_at_FreeBSD.org>
Date: Mon, 22 Jun 2026 08:41:36 UTC
Faraz Vahedi <kfv@kfv.io> writes:
> D57724 looks reasonable, but I would probably just change the gate
> from __ISO_C_VISIBLE to __STDC_VERSION__. I think that is what
> I should have done in the first place. That would make more sense for
> obsolete language constructs, I believe.

No, __STDC_VERSION__ is defined by the compiler and is used to determine
which language version the compiler provides, while __ISO_C_VISIBLE is
defined by us and is used to decide which interfaces to expose to the
application based on what the application requested.  If you scan
through src/include, you'll note that __STDC_VERSION__ is only used
there when what matters is whether a certain keyword is provided by the
compiler, which is not the case here.

DES
-- 
Dag-Erling Smørgrav - des@FreeBSD.org