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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Bruce Momjian <bruce@momjian.us>
Cc: Christophe Pettus <xof@thebuild.com>
Cc: Andrew Dunstan <andrew@dunslane.net>
Cc: Wolfgang Walther <walther@technowledgy.de>
Cc: PostgreSQL Bugs <pgsql-bugs@lists.postgresql.org>
Subject: Re: Regression tests fail with musl libc because libpq.so can't be loaded
Date: Tue, 19 Mar 2024 22:03:36 -0400
Message-ID: <4095435.1710900216@sss.pgh.pa.us> (raw)
In-Reply-To: <CA+hUKGKNK5V8XwwJJZm36s3EUy8V51xu4XiE8=26n=Wq3OGd4A@mail.gmail.com>
References: <855a1b16-0dc0-42b2-8f90-79eb49cf2893@technowledgy.de>
	<F5A214FF-1BED-4935-B4FF-4679CCF463D6@thebuild.com>
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	<CA+hUKG+H80zJTmNnRbAQb+py2xpzNUtmoacbfnyAi2c5d1imGg@mail.gmail.com>
	<E5D4E3AE-C926-48C5-84DC-57E3E9357675@thebuild.com>
	<CA+hUKGJW_ht0VYsr7bzF8-FLZW_o3Ys6Xm5w10GU5WBHtfv+zg@mail.gmail.com>
	<3561573.1710771812@sss.pgh.pa.us>
	<CA+hUKG+Tq3GK7bPd03N0Eox3YY4-Hjd7qQjo_QZFjdbhTqQGQA@mail.gmail.com>
	<CA+hUKGK9LUq=uygBRFt3vFO1RL+_scsT4+hMkvea_zTttHZ59Q@mail.gmail.com>
	<ZfolyUQw9z1zxX58@momjian.us>
	<CA+hUKG+Y1D2Bv9v0GbYrhiQ+mhf=6Xj2_viiATnBVFShkfO4VQ@mail.gmail.com>
	<4093813.1710899588@sss.pgh.pa.us>
	<CA+hUKGKNK5V8XwwJJZm36s3EUy8V51xu4XiE8=26n=Wq3OGd4A@mail.gmail.com>

Thomas Munro <thomas.munro@gmail.com> writes:
> On Wed, Mar 20, 2024 at 2:53 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> I'd be happier about this if the target pattern were more restrictive.
>> Is there reason to think that musl keeps a pointer to anything besides
>> LD_LIBRARY_PATH?

> Also LD_PRELOAD:
> https://github.com/bminor/musl/blob/7ada6dde6f9dc6a2836c3d92c2f762d35fd229e0/ldso/dynlink.c#L1824
> Yeah we could do just those two.

+1 for stopping only at one of those two names.

			regards, tom lane





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