Message-ID: <78e3d08ec899af4335808472cc634c5dcdc64017.camel@cybertec.at>
Subject: Re: Are compression requirements needed when building only
 libraries?
From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Uilian Ries <uilianries@gmail.com>, pgsql-general@lists.postgresql.org
Date: Thu, 09 Oct 2025 16:49:03 +0200
In-Reply-To: <CAEvaW23OxaGd=2rTzE4-38WiN-=O_dGPLBB-ZEd61WoasWDq0Q@mail.gmail.com>
References: 
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On Thu, 2025-10-09 at 13:10 +0200, Uilian Ries wrote:
> Greetings!
>=20
> I'm building PostgreSQL 17.5 locally, on Ubuntu 22.04, and using a CPU ar=
chitecture x86_64.
>=20
> I noted the meson_options.txt file contains a few optional=C2=A0dependenc=
ies, like
> zstd, zlib, lz4,=C2=A0libxml, and libxslt, which mostly seem to be relate=
d to compression.
>=20
> However, even when I build all libraries using those options enabled, I c=
an't see them
> listed as a dependency of the libraries:
>=20
> [...]
>
> So, my question is: Is it correct to affirm I don't need those dependenci=
es when only
> interested in building and consuming the libraries?=C2=A0
>=20
> I'm asking because I don't see a specific option in the meson_option.txt =
to disable/enable
> producing the executables, but only general options for dependencies.

My PostgreSQL is built with support for all these libraries, and I find tha=
t
my libraries are linked with "libz", but not with the other compression
libraries.

How did you configure and build PostgreSQL?

Yours,
Laurenz Albe