bug#52431: 29.0.50; Semantic bovine GCC tests failing on macOS

[Philipp Stephani]

Am Di., 28. Dez. 2021 um 21:00 Uhr schrieb Philipp Stephani
<p.stephani2@gmail.com>:
>
> Am So., 12. Dez. 2021 um 06:58 Uhr schrieb Lars Ingebrigtsen <larsi@gnus.org>:
> >
> > Philipp <p.stephani2@gmail.com> writes:
> >
> > > I guess this test assumes a specific output from the compiler, which is
> > > only present on GNU/Linux?
> >
> > The test tries to determine when running gcc gives us llvm, but it looks
> > like the method only works on older Macos versions?  So I've now updated
> > it to check for the current Macos setup, too.
> >
>
> The test still fails for me.

If it helps, this is the output of gcc -v:

Configured with: --prefix=/Library/Developer/CommandLineTools/usr
--with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/4.2.1
Apple clang version 13.0.0 (clang-1300.0.29.30)
Target: arm64-apple-darwin21.2.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin