bug#61458: [PATCH] services: xorg-wrapper: Support xorg server input

[宋文武]

Roman Scherer <roman@burningswell.com> writes:

>   services: xorg-wrapper: Support xorg server input rewriting.

Pushed with some commit description added:

    * gnu/services/xorg.scm (xorg-configuration-server-package-path)
    (xorg-configuration-dri-driver-path, xorg-configuration-xkb-bin-dir)
    (xorg-configuration-xkb-dir): New procedures.
    (xorg-wrapper): Use them for dri and xkb paths.

Thank you!