[Buildroot] [PATCHv3] package/rustc: needs C++ compiler with musl based toolchain

[Yann E. MORIN]

James, All,

On 2022-07-28 15:07 -0600, James Hilliard spake thusly:
> On Wed, Jul 27, 2022 at 2:38 AM Romain Naour <romain.naour at smile.fr> wrote:
> > While building host-rust with a musl based toolchain without C++ compiler,
> > the build fail since libunwind bundled in rust sources needs a C++ compiler.
> >
> > cargo:warning=i686-buildroot-linux-musl-gcc.br_real: error: [...]/host-rust-1.62.0/src/llvm-project/libunwind/src/Unwind-EHABI.cpp: C++ compiler not installed on this system
> AFAIU rust should be able to use normal(ie non-llvm) libunwind which doesn't
> require C++:
> https://github.com/buildroot/buildroot/blob/master/package/libunwind/libunwind.mk

I've applied Romain's patch as a stop-gap measure, until someone comes
up with a better solution, like implementing your proposal of using an
unbundled libunwind.

Regards,
Yann E. MORIN.

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