linux-kernel - Re: [PATCH v4 1/2] init/Kconfig: add python3 availability config

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Message-ID: <CAK7LNARc4Cp1a8G9p0KiCGyu0WL3BNEd0BY0COMPL4U8bLr8gA@mail.gmail.com>
Date: Fri, 22 Nov 2024 07:16:49 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Petr Vorel <pvorel@...e.cz>
Cc: linux-arm-msm@...r.kernel.org, 
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Andrew Morton <akpm@...ux-foundation.org>, 
	linux-kbuild@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
	Rob Clark <robdclark@...il.com>
Subject: Re: [PATCH v4 1/2] init/Kconfig: add python3 availability config

On Thu, Nov 21, 2024 at 10:17 AM Petr Vorel <pvorel@...e.cz> wrote:
>
> > On Thu, Nov 21, 2024 at 5:41 AM Petr Vorel <pvorel@...e.cz> wrote:
>
> > > It will be used in the next commit for DRM_MSM.
>
> > > Suggested-by: Rob Clark <robdclark@...il.com>
> > > Signed-off-by: Petr Vorel <pvorel@...e.cz>
> > > ---
> > > Changes v3->v4:
> > > * Move definition to the end of the file
>
>
> > I prefer to not check the tool.
>
> Ack.
>
> > Why don't you install python3?
>
> Everybody installs it when it's required, the question is how to inform about
> the dependency.
>
> There build environments are minimal environments:
> * chroot (e.g. cross compilation)
> * container
>
> These are used by both developers and distros.


Documentation/process/changes.rst
documents basic tools necessary for building the kernel.

Python3 is listed as "optional" because it is required
only for some CONFIG options.

If the exact dependency is unclear, it is better to install
all tools listed in that table.




> Kind regards,
> Petr
>
> > >  init/Kconfig | 3 +++
> > >  1 file changed, 3 insertions(+)
>
> > > diff --git a/init/Kconfig b/init/Kconfig
> > > index fbd0cb06a50a..c77e45484e81 100644
> > > --- a/init/Kconfig
> > > +++ b/init/Kconfig
> > > @@ -2047,3 +2047,6 @@ config ARCH_HAS_SYNC_CORE_BEFORE_USERMODE
> > >  # <asm/syscall_wrapper.h>.
> > >  config ARCH_HAS_SYSCALL_WRAPPER
> > >         def_bool n
> > > +
> > > +config HAVE_PYTHON3
> > > +       def_bool $(success,$(PYTHON3) -V)
> > > --
> > > 2.45.2



-- 
Best Regards
Masahiro Yamada