linux-kernel - Re: [PATCH 3/3] docs: Makefile: use PYTHONPYCACHEPREFIX

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Message-ID: <87a52avl0i.fsf@trenco.lwn.net>
Date: Wed, 01 Oct 2025 06:55:57 -0600
From: Jonathan Corbet <corbet@....net>
To: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>, Linux Doc Mailing
 List <linux-doc@...r.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>, Mauro Carvalho Chehab
 <mchehab@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] docs: Makefile: use PYTHONPYCACHEPREFIX

Mauro Carvalho Chehab <mchehab+huawei@...nel.org> writes:

> Previous cleanup patches ended dropping it when sphinx-build-wrapper
> were added. Also, sphinx-pre-install can also generate caches.
>
> So, re-add it for both.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
> ---
>  Documentation/Makefile | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/Makefile b/Documentation/Makefile
> index f764604fa1ac..cf26d5332fb5 100644
> --- a/Documentation/Makefile
> +++ b/Documentation/Makefile
> @@ -60,8 +60,10 @@ else # HAVE_SPHINX
>  
>  # Common documentation targets
>  htmldocs mandocs infodocs texinfodocs latexdocs epubdocs xmldocs pdfdocs linkcheckdocs:
> -	$(Q)@$(srctree)/tools/docs/sphinx-pre-install --version-check
> -	+$(Q)$(PYTHON3) $(BUILD_WRAPPER) $@ \
> +	$(Q)PYTHONPYCACHEPREFIX="$(PYTHONPYCACHEPREFIX)" \
> +		@$(srctree)/tools/docs/sphinx-pre-install --version-check
> +	+$(Q)PYTHONPYCACHEPREFIX="$(PYTHONPYCACHEPREFIX)" \
> +		$(PYTHON3) $(BUILD_WRAPPER) $@ \

This causes an immediate build fail for me:

  /bin/sh: line 1: @./tools/docs/sphinx-pre-install: No such file or directory
  make[2]: *** [Documentation/Makefile:63: htmldocs] Error 127
  make[1]: *** [Makefile:1808: htmldocs] Error 2
  make: *** [Makefile:248: __sub-make] Error 2

jon