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From: Bruce Momjian <bruce@momjian.us>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: walther@technowledgy.de, Peter Eisentraut <peter@eisentraut.org>
Cc: Christophe Pettus <xof@thebuild.com>
Cc: Andrew Dunstan <andrew@dunslane.net>
Cc: PostgreSQL Bugs <pgsql-bugs@lists.postgresql.org>
Subject: Re: Regression tests fail with musl libc because libpq.so can't be loaded
Date: Thu, 21 Mar 2024 20:08:49 -0400
Message-ID: <ZfzMEZolMEeiVJPQ@momjian.us> (raw)
In-Reply-To: <CA+hUKGL8X8bv9C11sW8g6Zn3TTLmaKNJMa5Nb57o5jsz6rr7sQ@mail.gmail.com>
References: <4095435.1710900216@sss.pgh.pa.us>
	<CA+hUKGK2cSx3dveMqBD+E9N=zJ0WawBcbk_jnPqmdWBM0DT_3Q@mail.gmail.com>
	<477fa513-6bf0-456d-8d24-1e22a19df671@technowledgy.de>
	<ZfrmN4WHuJgD95fw@momjian.us>
	<CA+hUKGJzC4rr2Yr=QZyx9W83Wv=TVJHndKF1anjNLNXVUM7TqQ@mail.gmail.com>
	<f98cd8de-1c66-491a-8409-e62c09932080@technowledgy.de>
	<36690fcf-f0c8-4d60-af49-6a7efa0e2b14@technowledgy.de>
	<CA+hUKGJAkTZUa9JGr-zsadaqsN=K0P71t-1L2t2=MQFDMc4GuQ@mail.gmail.com>
	<782438.1711062167@sss.pgh.pa.us>
	<CA+hUKGL8X8bv9C11sW8g6Zn3TTLmaKNJMa5Nb57o5jsz6rr7sQ@mail.gmail.com>

On Fri, Mar 22, 2024 at 12:20:11PM +1300, Thomas Munro wrote:
> On Fri, Mar 22, 2024 at 12:02 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> > The previously-suggested patch to whitelist glibc and variants,
> > and otherwise fall back to PS_USE_NONE, seems like it might be
> > the appropriate amount of effort.
> 
> What about meeting musl halfway: clobber argv, but only clobber
> environ for the libcs known to tolerate that?  Then musl might see
> truncation at 30-60 characters or whatever it is, but that's probably
> enough to see your cluster_name and backend type/user name which is
> pretty useful information.

I just posted a prototype patch to implement this.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Only you can decide what is important to you.





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