[Buildroot] [PATCH 1/1] package/mpd: fix static build with tremor and vorbis
Thomas Petazzoni
thomas.petazzoni at bootlin.com
Sat Jun 1 13:47:38 UTC 2019
Hello,
On Sat, 1 Jun 2019 15:40:17 +0200
Fabrice Fontaine <fontaine.fabrice at gmail.com> wrote:
> > > - select BR2_PACKAGE_MPD_TREMOR if !(BR2_PACKAGE_MPD_MAD || BR2_PACKAGE_MPD_MPG123 || BR2_PACKAGE_MPD_VORBIS || BR2_PACKAGE_MPD_WAVPACK || BR2_PACKAGE_MPD_FLAC || BR2_PACKAGE_MPD_MUSEPACK || BR2_PACKAGE_MPD_FFMPEG)
> >
> > Why was this select here in the first place ? Does it build fine with
> > no sub-option enabled ?
> It builds fine without it. I don't know why this select was added.
Should be mentioned in the commit log, and or perhaps even be part of a
separate preparation patch.
The reason why this select was added is explained in commit
d428dddf680b067c13ba9a08bfd502c7286cffe7:
commit d428dddf680b067c13ba9a08bfd502c7286cffe7
Author: Gustavo Zacarias <gustavo at zacarias.com.ar>
Date: Fri Feb 25 17:10:05 2011 -0300
mpd: default to tremor input plugin
MPD requires at least one input plugin to build.
If there's none selected default to tremor (vorbis).
Signed-off-by: Gustavo Zacarias <gustavo at zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet at sunsite.dk>
Perhaps this is no longer true today.
> > Also, I am not sure why you are not just adding a depends on
> > BR2_SOFT_FLOAT in one case, and a "depends on !BR2_SOFT_FLOAT" in the
> > other case.
> OK, I'll just add a depends on. I'll change the current behavior but I
> think this is acceptable.
Your idea was to try to remain backward compatible with
existing .config ? I'm not sure it's easy to achieve: we would want
tremor to be enabled if vorbis was enabled but we're on a soft-float
target. Except that you need to make vorbis depends on !BR2_SOFT_FLOAT,
so it will become disabled anyway.
I'd say, let's keep things simple, and use simple dependencies. BTW,
I'm not sure we should use BR2_SOFT_FLOAT. Perhaps, we should make the
MPD_TREMOR and MPD_VORBIS options mutually exclusive ?
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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