[Buildroot] [RFC 1/1] package/pkg-meson.mk: handle possibly non existing compilers

[yann.morin at orange.com]

Thomas, Guillaume, All,

On 2022-08-16 12:01 +0200, Thomas Petazzoni via buildroot spake thusly:
> On Tue, 16 Aug 2022 11:48:29 +0200
> "Guillaume W. Bres" <guillaume.bressaix at gmail.com> wrote:
> > To avoid populating the cross-file with non existing compilers,
> > we tie them to /bin/false
[--SNIP--]
> Now, the annoying question: should this be done in pkg-meson.mk, or
> should we do it more globally, i.e define TARGET_CXX and TARGET_FC to
> correct values only when C++ or Fortran are supported.
> 
> Yann, what do you think? Did we ever try to have TARGET_CXX=/bin/false
> and TARGET_FC=/bin/false when there is no C++/Fortran support?

I think my non-work identity would also remember commit bd39d11d2eaa
(core/infra: fix build on toolchain without C++), and the mess it
caused, which was fixed by commit 4cd1ab15886a (core: alternate solution
to disable C++).

So, yes, we tried for CXX, and no, we do not want to do it again. For
consistency, we should not try for other languages either, I believe.

Regards,
Yann E. MORIN.

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