Hello Mr. Lepiller,

Thank you for the tip. For the moment, I want to poke around this issue.
Perhaps I get absolutely tired of it (or find a good hack - and an ugly
patch). I did manage to learn a bit more about union-builds in general. So,
that's a silver lining.

Also, your work on guix-android seems so very cool! Please keep up the
great work!

On Sat, Sep 26, 2020 at 3:28 PM Julien Lepiller <julien@lepiller.eu> wrote:

>
>
> Hi Prafulla,
>
> Le 26 septembre 2020 03:31:38 GMT-04:00, Prafulla Giri <
> pratheblackdiamond@gmail.com> a écrit :
> >Another information:
> >
> >I have other programs on my foreign system (installed via guix) that
> >produce sound well, without any issues. They include:
> >espeak and kdenlive.
> >
> >Also, I did try making the union-build use copies instead of symlinks
> >using
> >(union-build ... #:symlink copy-recursively) but that didn't work out
> >either.
> >
> >Now, I'm going to take a look at fixing the pkg-config rules, and will
> >be
> >updating this thread should that resolve this issue.
> >
> >On Sat, Sep 26, 2020 at 12:21 PM Prafulla Giri
> ><pratheblackdiamond@gmail.com>
> >wrote:
> >
> >> I forgot to mention, but the union-build works. If one `guix build`s
> >the
> >> union package, and cd into the /gnu/store/...-union-build, one will
> >see
> >> that things are there as it should be (lib/normal-alsa-*.so and
> >> lib/alsa-lib/*pulse*.so).
> >>
> >> It's just that aegisub seems to be looking from the
> >> /gnu/store/normal-alsa-lib-dir instead of
> >/gnu/store/union-alsa-package.
> >>
>
> I think the issue with the union-build is that it is completely ignored:
> alsa doesn't look in it's current directory for plugins, but in the
> directory where it's been configured (at build time) to look for.
>
> On the Guix System, there is a service that creates a /etc/asound.conf,
> which references alsa-plugins:pulseaudio. Maybe you actually want to
> configure that? Maybe try to copy this to a new file .asoundrc:
>
> pcm_type.pule {
>   lib "/home/foo/.guix-profile/lib/alsa-lib/libasound_module_pcm_pulse.so"
> }
>
> ctl_type.pulse {
>   lib"/home/foo/.guix-profile/lib/alsa-lib/libasound_module_ctl_pulse.so"
> }
>
> pcm.!default {
>   type pulse
> }
>
> ctl.!default {
>   type pulse
> }
>