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Subject: bug#73898: MPV should not propagate all inputs
Resent-From: Antero Mejr <mail@HIDDEN>
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Date: Sun, 20 Oct 2024 02:33:37 +0000
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Currently, MPV propagates most of its inputs, which is not correct.

When MPV tries to propagate a different version of a dependency (like
ffmpeg) that is a different version what is currently installed, Guix
operations will fail.

The source code in video.scm says that the inputs are propagated so
pkg-config will work, but that is not a valid reason. The pkg-config
file should be patched so that pkg-config will work without unnecessary
propagated-inputs.

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Antero Mejr <mail@HIDDEN>
Subject: bug#73898: Acknowledgement (MPV should not propagate all inputs)
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Date: Sun, 20 Oct 2024 02:35:02 +0000

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Subject: bug#73898: MPV should not propagate all inputs
Resent-From: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
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From: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
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 2024 02:33:37 +0000")
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Date: Wed, 23 Oct 2024 21:52:39 +0900
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Hi Antero,

Antero Mejr <mail@HIDDEN> writes:

> Currently, MPV propagates most of its inputs, which is not correct.
>
> When MPV tries to propagate a different version of a dependency (like
> ffmpeg) that is a different version what is currently installed, Guix
> operations will fail.
>
> The source code in video.scm says that the inputs are propagated so
> pkg-config will work, but that is not a valid reason. The pkg-config
> file should be patched so that pkg-config will work without unnecessary
> propagated-inputs.

Maybe we could have a mpv package that doesn't propagate anything, and a libmpv
that does, if there are any users (other packages) of mpv as a library?

-- 
Thanks,
Maxim

Message sent to bug-guix@HIDDEN:

Subject: bug#73898: MPV should not propagate all inputs
Resent-From: Antero Mejr <mail@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
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To: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
Cc: 73898 <at> debbugs.gnu.org
From: Antero Mejr <mail@HIDDEN>
In-Reply-To: <87y12fyoa0.fsf@HIDDEN> (Maxim Cournoyer's message of "Wed, 23
 Oct 2024 21:52:39 +0900")
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Date: Wed, 23 Oct 2024 16:53:49 +0000
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Maxim Cournoyer <maxim.cournoyer@HIDDEN> writes:

> Maybe we could have a mpv package that doesn't propagate anything, and a libmpv
> that does, if there are any users (other packages) of mpv as a library?

There was already some discussion about that here:
https://issues.guix.gnu.org/68250

It seems like once the pkgconf stuff is merged, mpv can be built as a
shared library, move the propagated-inputs to inputs, and meson will
output the correct pkg-config file without breaking downstream
dependencies. Not sure though.

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