On Thu, 26 Nov 2020 at 11:29, <marcandre.lur...@redhat.com> wrote: > > From: Philippe Mathieu-Daudé <phi...@redhat.com> > > Since commit efc6c070aca ("configure: Add a test for the > minimum compiler version") the minimum compiler version > required for GCC is 4.8, which has the GCC BZ#36793 bug fixed. > > We can safely remove the special case introduced in commit > a281ebc11a6 ("virtio: add missing mb() on notification"). > > With clang 3.8 (xenial amd64) __ATOMIC_RELAXED is defined, so the chunk > to remove (which is x86-specific), isn't reached.
The minimum clang version enforced by configure is 3.4, not 3.8. (Or Apple XCode clang 5.1 -- they use a different versioning scheme!) thanks -- PMM