Re: [PATCH v2] kbuild: check the minimum compiler version in Kconfig

[Miguel Ojeda]

On Thu, Jan 14, 2021 at 5:25 AM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote:
>
> The cc-version.sh also shows the error if the compiler is old:
>
>   $ make defconfig CC=clang-9
>   *** Default configuration is based on 'x86_64_defconfig'
>   ***
>   *** Compiler is too old.
>   ***   Your Clang version:    9.0.1
>   ***   Minimum Clang version: 10.0.1
>   ***
>   scripts/Kconfig.include:46: Sorry, this compiler is unsupported.

That looks nice. Hopefully we can do the same approach for other tools too!

> I put the stub for ICC because I see <linux/compiler-intel.h> although
> I am not sure if building the kernel with ICC is well-supported.

I doubt it, and there seems to be no maintainer listed either. I think
it could be considered for removal in an RFC.

Cheers,
Miguel