linux-kernel - Re: [PATCH 2/2] perf build: Add Debian/Ubuntu python-is-python3

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Message-ID: <20251017122904.GC281971@e132581.arm.com>
Date: Fri, 17 Oct 2025 13:29:04 +0100
From: Leo Yan <leo.yan@....com>
To: Geert Uytterhoeven <geert+renesas@...der.be>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] perf build: Add Debian/Ubuntu python-is-python3

Hi Geert,

On Thu, Oct 16, 2025 at 02:44:12PM +0200, Geert Uytterhoeven wrote:
> The build looks for "python" and "python-config", while modern
> distributions provide only "python3" and "python3-config" by default.
> Suggest installing "python-is-python3" and "python-dev-is-python3", as
> available on Debian 11 (bullseye) and Ubuntu 20.04 LTS (focal) and
> later.

Seems to me, this change is not necessary. The Makefile [1] searches
python[2|3]/python[2|3]-cofig if un-versioned executables are not found.

I confirmed that I can build successfully without installation
python-dev-is-python3 package.

Thanks,
Leo

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/perf/Makefile.config?//h=v6.18-rc1#n302