Cant set my xkb's xkeymap with xkbcomp

[James K. Lowden]

On Thu, 17 Dec 2020 13:50:59 +1000
Peter Hutterer <peter.hutterer at who-t.net> wrote:

> > $ xkbcomp -I$HOME/.config/xkb ~/.config/xkb/mapus  $DISPLAY
> > 
> > .....
> > 
> > Warning:          Key <OUTP> not found in evdev+aliases(qwerty)
> > keycodes Symbols ignored
> > 
> > ...
> > 
> > Warning:          No symbols defined for <I149> (keycode 149)
> > ....
> 
> those warnings have no effect and happen on every system. You can
> ignore those.

If the warning occurs on every system and can be ignored, what purpose
do they serve?  

--jkl