xkeyboard-config fails after version 1.22

[wwwutz]

refs:

• xkeyboard-config: update to 2.30 #1944

• Revert "xkeyboard-config: update to 2.30" #1963

• Latest working version is 2.22.

• 2.23 does not build: configure: error: cannot find install-sh, install.sh, or shtool

• from 2.24 on startx fails with

The XKEYBOARD keymap compiler (xkbcomp) reports:
> Error:            Illegal keycode 372 for name <I372>
>                   Must be in the range 8-255 inclusive
> Error:            Illegal keycode 374 for name <I374>
>                   Must be in the range 8-255 inclusive
Errors from xkbcomp are not fatal to the X server
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Error:            Illegal keycode 372 for name <I372>
>                   Must be in the range 8-255 inclusive
> Error:            Illegal keycode 374 for name <I374>
>                   Must be in the range 8-255 inclusive
Errors from xkbcomp are not fatal to the X server
XKB: Failed to compile keymap
Keyboard initialization failed. This could be a missing or incorrect setup of xkeyboard-config.
(EE) 
Fatal server error:
(EE) Failed to activate virtual core keyboard: 2(EE) 
(EE) 
Please consult the The X.Org Foundation support 
         at http://wiki.x.org
 for help. 
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE) 
(II) AIGLX: Suspending AIGLX clients for VT switch
(EE) Server terminated with error (1). Closing log file.