Re: [Xen-devel] [PATCH 02/12] xen/arm: fix get_cpu_info() when built with clang

[Julien Grall <julien.grall@xxxxxxx>]

Hi,

On 01/10/2019 02:15, Stefano Stabellini wrote:
> On Sun, 29 Sep 2019, Julien Grall wrote:
> > On 4/18/19 7:03 PM, Stefano Stabellini wrote:
> > > On Wed, 17 Apr 2019, Julien Grall wrote:
> > > > On 4/17/19 9:45 PM, Stefano Stabellini wrote:
> > > > > On Wed, 27 Mar 2019, Julien Grall wrote:
> > But then if clang is already defining __GNUC__, what actually prevents any
> > other to do it?
> >
> > I have yet to see anyone wanted to build Xen with another compiler other than
> > clang and GCC. So I will leave this patch as is. Feel free to suggest a
> > different approach if you are not happy with this.
> Is there a __REALLY_REALLY_GUNC__ variable? I guess not, so I don't have
> a better suggestion. This problem is quite annoying (not your fault of
> course) I wonder how other projects deal with it. There must be a
> "clean" way to distinguish gcc from others?
Linux only supports clang and GCC. AFAICT they are using !__clang__ to detect if 
GCC is used.
Cheers,

--
Julien Grall

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