Date: Wed, 20 Mar 2024 15:18:39 -0400
From: Bruce Momjian <bruce@momjian.us>
To: Wolfgang Walther <walther@technowledgy.de>
Cc: Thomas Munro <thomas.munro@gmail.com>, peter@eisentraut.org,
	Christophe Pettus <xof@thebuild.com>,
	Andrew Dunstan <andrew@dunslane.net>,
	PostgreSQL Bugs <pgsql-bugs@lists.postgresql.org>,
	Tom Lane <tgl@sss.pgh.pa.us>
Subject: Re: Regression tests fail with musl libc because libpq.so can't be
 loaded
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On Wed, Mar 20, 2024 at 03:24:58PM +0100, Wolfgang Walther wrote:
> Bruce Momjian:
> > I guess we could conditionally exec only if we find we must, but then
> > such exec cases would be rare and rarely tested.
> 
> I think you might be seriously underestimating how often musl is used.
> Alpine Linux uses musl and is very widespread in the container world because
> of smaller image size.
> 
> The library/postgres docker image has been pulled about 8 billion times
> since 2014 [1]. While we can't really tell how many of those pulled the
> alpine variant of the image, comparing the alpine [2] and ubuntu/debian
> [3,4] base images gives a rough estimate of >50% using alpine in general.

Uh, what is the current behavior of Postgres on musl?  It just fails if
the process title is longer than argv[0] plus the environment space to
the LD_ environment variable, and then linking fails for certain
extensions?  If there are many downloads, why would we only be getting
this report now?

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

  Only you can decide what is important to you.