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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Peter Eisentraut <peter@eisentraut.org>
Cc: Bruce Momjian <bruce@momjian.us>
Cc: walther@technowledgy.de, Christophe Pettus <xof@thebuild.com>
Cc: Andrew Dunstan <andrew@dunslane.net>
Cc: PostgreSQL Bugs <pgsql-bugs@lists.postgresql.org>
Cc: Robert Haas <robertmhaas@gmail.com>
Subject: Re: Regression tests fail with musl libc because libpq.so can't be loaded
Date: Mon, 25 Mar 2024 19:15:52 -0400
Message-ID: <2712381.1711408552@sss.pgh.pa.us> (raw)
In-Reply-To: <CA+hUKGKU_0hmqem_EmAwePjVtMrjZNyNN0niUdBhuABajRwyhw@mail.gmail.com>
References: <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>
	<ZfzLsiXbguTDatiZ@momjian.us>
	<a2463df1-be45-4a76-b90f-7676d778e7b1@technowledgy.de>
	<Zf2JU0_GDdbeBm5j@momjian.us>
	<Zf3fnKpHIGpe5mOi@momjian.us>
	<443430b4-0c10-49f3-8c8a-e5e76602f309@eisentraut.org>
	<CA+hUKGKU_0hmqem_EmAwePjVtMrjZNyNN0niUdBhuABajRwyhw@mail.gmail.com>

Thomas Munro <thomas.munro@gmail.com> writes:
> On Tue, Mar 26, 2024 at 11:46 AM Peter Eisentraut <peter@eisentraut.org> wrote:
>> What determines which variables require this treatment?

> I had originally proposed to avoid anything beginning "LD_" but Tom
> suggested being more specific.  I doubt LD_PRELOAD can really hurt you
> though (the linker probably only needs the value at the start by
> definition, not at later dlopen() time (?)).

Oh, good point.  So we could simplify the patch by only looking for
LD_LIBRARY_PATH.

			regards, tom lane





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