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From: Wolfgang Walther <walther@technowledgy.de>
To: Andrew Dunstan <andrew@dunslane.net>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: PostgreSQL Bugs <pgsql-bugs@lists.postgresql.org>
Subject: Re: Regression tests fail with musl libc because libpq.so can't be loaded
Date: Sat, 16 Mar 2024 21:00:28 +0100
Message-ID: <eff5b49b-3d34-4a5b-82e9-e2630b1da37d@technowledgy.de> (raw)
In-Reply-To: <CAD5tBcJ7r_g1gUCp63ugjE6doz_Fu_1VJQJ5Cz_gLGKJ3e1Ktg@mail.gmail.com>
References: <fddd1cd6-dc16-40a2-9eb5-d7fef2101488@technowledgy.de>
	<2852940.1710599083@sss.pgh.pa.us>
	<443da167-ee01-47d2-9c83-105694b4cbd5@technowledgy.de>
	<CAD5tBcJ7r_g1gUCp63ugjE6doz_Fu_1VJQJ5Cz_gLGKJ3e1Ktg@mail.gmail.com>

Andrew Dunstan:
> On Alpine Linux, which uses musl libc, you have to run `make install` 
> before you can run `make check`. Have you tried that?

I can see how that could work around the problem, because the library 
would already be available in the default library path / rpath and 
LD_LIBRARY_PATH would not be needed.

However, this would only be a workaround for the specific case of 
running the regression tests, not a solution. Using LD_LIBRARY_PATH, as 
documented, would still not be possible.

In my case, I am just using docker images with Alpine to easily 
reproduce the problem. I am building with NixOS / nixpkgs' pkgsMusl. The 
order of check and install phases can't be changed there, AFAICT. The 
workaround I use right now is to temporarily patch rpath of the postgres 
binary - this will be reset during the install phase anyway. This works, 
but again is not a real solution.

Best,

Wolfgang





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  Subject: Re: Regression tests fail with musl libc because libpq.so can't be loaded
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