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From: Emil Velikov <emil.l.velikov@gmail.com>
Date: Thu, 25 Jan 2024 13:48:20 +0000
Message-ID: <CACvgo50AWHGmYdRRLjq7ki=+FQ2J_YQq4JDg0PZATxorEjwccg@mail.gmail.com>
Subject: Re: [PATCH BlueZ v3 0/8] Remove support for external plugins
To: Szymon Janc <szymon.janc@codecoup.pl>
Cc: linux-bluetooth@vger.kernel.org, Emil Velikov <emil.velikov@collabora.com>
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On Thu, 25 Jan 2024 at 13:02, Szymon Janc <szymon.janc@codecoup.pl> wrote:
>
> Hi,
>
> On Thu, 25 Jan 2024 at 01:07, Emil Velikov via B4 Relay
> <devnull+emil.l.velikov.gmail.com@kernel.org> wrote:
> >
> > Hello everyone,
> >
> > Here's v3 fixing a small bug with the previous patches, which was
> > tripping the CI.
> >
> > Link to the previous revision can be found below.
>
> Just a comment that external plugins support was added to avoid udev
> dependency (from sixaxis) in bluetoothd.
> (not that I have strong opinion on this, just a note, I don't remember
> exactly why it was done, maybe Marcel recalls?)
>

Thanks, I may have some ideas why.

About 10 years ago (or so) some distributions were shipping
libudev.so.0 while others libudev.so.1. The ABI break was minimal,
although it was a thing.
I remember us doing all sorts of hacks in Mesa trying to pick the
correct one, esp when your system can have .1 while the game (or its
chroot-like environment) has .0 and vice-versa.

I would imagine a similar issue was observed in bluez - but I can only
speculate.

Over the last 5+ years, literally all supported distributions have
moved for libudev.so.1 and the Steam games (and runtime) has both with
some compat quirks to avoid explosions.

HTH o/
Emil