Re: libvdpau: cannot open shared object

[Efraim Flashner]

On Fri, Dec 15, 2017 at 03:31:29PM +0100, Ludovic Courtès wrote:
> Efraim Flashner <address@hidden> skribis:
> 
> > $ VDPAU_DRIVER=va_gl LD_LIBRARY_PATH=$(guix build libvdpau-va-gl)/lib 
> > vdpauinfo
> > display: :0.0   screen: 0
> > Failed to open VDPAU backend libvdpau_va_gl.so: cannot open shared object 
> > file: No such file or directory
> > Error creating VDPAU device: 1
> 
> Well the exact line is this:
> 
>   VDPAU_DRIVER=va_gl \
>   LD_LIBRARY_PATH=$(./pre-inst-env guix build libvdpau-va-gl)/lib/vdpau \
>   $(guix build vdpauinfo)/bin/vdpauinfo
> 
> Works for me!  It displays lots of things.  :-)
> 

It seems I forgot the '/vdpau'

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

The VDPAU_DRIVER is actually a mesa environmental variable IIRC, so
setting it unconditionally would negatively affect others.

> 
> Thanks,
> Ludo’.

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