xkbcomp coredumping on three layouts

["Yury Tarasievich" <yury.tarasievich@xxxxxxxxx>]

I'm using the xorg-6.9.0 packages series carried by the
ftp://packages.stura.uni-rostock.de. So, xkbcomp coredumps on the X
start if I use more than two keyboard layouts.

The three layouts line is:
Option "XkbLayout"  "us,by:winkeys,ru:winkeys"

Any two layouts of these three are fine, although I get lots of xkb warnings.

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