[mythtv] MythTV arch builder

[David Hampton]

On Thu, 2023-10-12 at 11:27 -0400, Doug Lytle via mythtv-dev wrote: 
> On 10/12/23 10:20, Doug Lytle via mythtv-dev wrote: 
> > > Sorry.  Remove the qt5-webkit package.  Pacman asked me to remove
> > > a
> > > couple of other packages that I didn't think were required for a
> > > build system. 
> >  
> >   Completed.
>  
>  Build failed
>  
>  Project ERROR: Unknown module(s) in QT: webkitwidgets
>  
>  Did a query on webkit and have the below results:
>  
>  pacman -Q|grep webkit
>  
>  qtwebkit 2.3.4-4
>  

I don't have that package on my builder.  I also don't see it when
running 'pacman -Ss qtwebkit".  Maybe left over from something past?
I discovered this incantation recently:

    sudo pacman -Rsn $(pacman -Qdtq)"

That should remove all orphaned packages.  Be sure to check the output
of "pacman -Qdtq" first before running the full command.  Apparently
someone managed to erase their kernel a couple of years back.

David