Re: [PULL 20/33] configure: handle host compiler in probe_target_compiler

[Richard Henderson]

On 6/21/22 09:58, Paolo Bonzini wrote:
> On 6/20/22 18:41, Matheus Kowalczuk Ferst wrote:
> > On 17/06/2022 07:12, Paolo Bonzini wrote:
> > > Hi Matheus,
> > >
> > > could you please test the tests-tcg-next branch at
> > > https://gitlab.com/bonzini/qemu?
> > At be6090bcac10, it works if no BE toolchain is present. Otherwise, the
> > script probes powerpc64-linux-gnu-gcc instead of the native tools for
> > ppc64le-linux-user, and then do_compiler fails because the
> > $target_cflags contains -mlittle-endian.
>
> So the problem in that case is that powerpc64-linux-gnu-gcc is _not_
> biarch and thus does not support -mlittle-endian?  (I thought PPC
> compilers were all 32/64-bit and bi-endian).

Nit: this is ppc64le-linux-gnu-gcc, built for gcc135, a power9 ppc64le host.  It *does* 
support -mbig-endian, but not -m32.

At least gcc11 as release was not biarch, with no special configure arguments.  I can try 
upgrading to the current gcc12 release to see if that changed...


r~