How to use a .xkm with X

[Mike Eriksen]

Hi.

For use with a tiny Linux distro, I need to use precompiled .xkm
keymap files in order to save space.

In the good old day of X 6.8/6.9 there was a -xkm command line option
to X, but that one has gone nowadays. I have googled for about a day
now, but gotten nowhere and "man X" isn't useful either.

Could someone please explain how to use a .xkm keymap these days.

TIA

Mike