From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: libvdpau: cannot open shared object
Date: Fri, 15 Dec 2017 15:31:29 +0100
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In-Reply-To: <20171215121806.GB1457@macbook41> (Efraim Flashner's message of
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To: Efraim Flashner <efraim@flashner.co.il>
Cc: help-guix@gnu.org

Efraim Flashner <efraim@flashner.co.il> skribis:

> $ VDPAU_DRIVER=3Dva_gl LD_LIBRARY_PATH=3D$(guix build libvdpau-va-gl)/lib=
 vdpauinfo
> display: :0.0   screen: 0
> Failed to open VDPAU backend libvdpau_va_gl.so: cannot open shared object=
 file: No such file or directory
> Error creating VDPAU device: 1

Well the exact line is this:

  VDPAU_DRIVER=3Dva_gl \
  LD_LIBRARY_PATH=3D$(./pre-inst-env guix build libvdpau-va-gl)/lib/vdpau \
  $(guix build vdpauinfo)/bin/vdpauinfo

Works for me!  It displays lots of things.  :-)

So I think you can push the package, and then we need to figure out what
to do on GuixSD with =E2=80=98VDPAU_DRIVER=E2=80=99 (set it unconditionally=
 to =E2=80=98va_gl=E2=80=99?)
and how to avoid LD_LIBRARY_PATH.

Thanks,
Ludo=E2=80=99.