Re: Replace uses of deprecated Python module distutils.sysconfig

From: Andres Freund <andres(at)anarazel(dot)de>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Replace uses of deprecated Python module distutils.sysconfig
Date: 2022-01-23 23:19:11
Message-ID: 20220123231911.2wig7pwljzghceyi@alap3.anarazel.de
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Hi,

On 2022-01-23 18:11:41 -0500, Tom Lane wrote:
> It may be that one of the other "scheme" values accurately describes
> Debian's actual layout of this package. I didn't check, because the
> scheme is defined to be platform-specific.

posix_prefix does, as far as I can see.

> Specifying a particular value for it would therefore break other platforms.

Hence the suggestion to only force posix_prefix when posix_local (the debian
invention) otherwise would get used...

> Anyway, trying to figure out whether we're on a Debian package with this
> mistake doesn't seem any cleaner than what I proposed. (In particular,
> blindly changing to a different scheme without a check to see what's really
> in the filesystem seems doomed to failure.)

If we make it depend on _get_default_scheme() == 'posix_local' that shouldn't
be a risk, because that's the debian addition...

Greetings,

Andres Freund

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