[PATCH v7] assert: Support assert as variadic macro for C++26 [PR27276]

[Tomasz Kaminski]

On Tue, Mar 3, 2026 at 2:32 PM Yury Khrustalev <yury.khrustalev@arm.com>
wrote:

> On Tue, Mar 03, 2026 at 01:45:10PM +0100, Tomasz Kaminski wrote:
> > On Tue, Mar 3, 2026 at 1:39 PM Adhemerval Zanella Netto <
> > adhemerval.zanella@linaro.org> wrote:
> >
> > > On 03/03/26 07:56, Yury Khrustalev wrote:
> > > > On Wed, Feb 25, 2026 at 03:01:23PM +0100, Tomasz Kamiński wrote:
> > > >> From: Jonathan Wakely <jwakely@redhat.com>
> > > >
> > > > This patch has a new test that fails to compile with GCC 14.2
> (although
> > > > it works with GCC 14.3) and causes make check to fail e.g. on Debian
> 13.
> > > >
> > > >
> > > > ...
> > > >
> > > > is not enough to check if this test is supported or not. XFAIL will
> not
> > > > help here because the test doesn't compile which causes make check to
> > > > fail.
> > >
> > > It does seems to me this is a compiler bug, I checked with gcc version
> > > 14.3.1 20250814
> > > and gcc version 15.2.1 20260112 without issues.
> > >
> > > Tomasz, is this a compiler bug or something has changes for gcc 14? If
> so
> > > I think we might need __GNUC_PREREQ for the test.
> > >
> > > Yes, this looks like compiler bug that was fixed in 14.3 and 15, but
> > wasn't able to identify the specific change yet.
>
> Looks like
>
>   https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=e2a178a5110
>
> is the commit where this is fixed and the previous commit
>
>   https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=ecc2725d61f
>
> fails to compile this code.
>
Thank you. GCC frontend developers supplied me with the same bugzilla
PR https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118629.


>
> Off-topic, but should I create a GCC BZ ticket for 14.2 (even though the
> bug is already fixed in 14.3)?
>
> Thanks,
> Yury
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://sourceware.org/pipermail/libc-alpha/attachments/20260303/3d24492f/attachment-0001.htm>