Re: Requiring LLVM 14+ in PostgreSQL 18

From: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
To: Ole Peder Brandtzæg <olebra(at)samfundet(dot)no>
Cc: Peter Eisentraut <peter(at)eisentraut(dot)org>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Requiring LLVM 14+ in PostgreSQL 18
Date: 2024-05-18 23:05:49
Message-ID: CA+hUKGJWDs9sydpDjEGYcyrFaeJa9Aziiq1wbmtjDSG_yy7nZQ@mail.gmail.com
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On Sun, May 19, 2024 at 10:46 AM Ole Peder Brandtzæg
<olebra(at)samfundet(dot)no> wrote:
> On Wed, May 15, 2024 at 07:20:09AM +0200, Peter Eisentraut wrote:
> > Yes, let's get that v3-0001 patch into PG17.
>
> Upon seeing this get committed in 4dd29b6833, I noticed that the docs
> still advertise the llvm-config-$version search dance. That's still
> correct for Meson-based builds since we use their config-tool machinery,
> but no longer holds for configure-based builds. The attached patch
> updates the docs accordingly.

Oops, right I didn't know we had that documented. Thanks. Will hold
off doing anything until the thaw.

Hmm, I also didn't know that Meson had its own list like our just-removed one:

https://github.com/mesonbuild/meson/blob/master/mesonbuild/environment.py#L183

Unsurprisingly, it suffers from maintenance lag, priority issues etc
(new major versions pop out every 6 months):

https://github.com/mesonbuild/meson/issues/10483

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