xkb keymap fails to load with modular build

[Johannes Engel]

Hello, everyone!

Having compiled modular X.Org from git nearly everything works well
except my keyboard. :(
The log says:

(WW) Couldn't load XKB keymap, falling back to pre-XKB keymap
(**) Option "CoreKeyboard"
(**) Keyboard[0]: always reports core events
(**) Option "Protocol" "Standard"
(**) Keyboard[0]: Protocol: Standard
(**) Option "AutoRepeat" "500 30"
(**) Option "XLeds" "1 2 3"
(**) Option "XkbRules" "xfree86"
(**) Keyboard[0]: XkbRules: "xfree86"
(**) Option "XkbModel" "pc105"
(**) Keyboard[0]: XkbModel: "pc105"
(**) Option "XkbLayout" "de,de"
(**) Keyboard[0]: XkbLayout: "de,de"
(**) Option "XkbVariant" "nodeadkeys,"
(**) Keyboard[0]: XkbVariant: "nodeadkeys,"
(**) Option "XkbOptions" "Compose,compose:rctrl"
(**) Keyboard[0]: XkbOptions: "Compose,compose:rctrl"
(**) Option "CustomKeycodes" "off"
(**) Keyboard[0]: CustomKeycodes disabled
(**) Option "SendCoreEvents"

The xorg.conf says
Section "InputDevice"
  Driver       "kbd"
  Identifier   "Keyboard[0]"
  Option       "Protocol" "Standard"
  Option       "XkbLayout" "de,de"
  Option       "XkbModel" "pc105" # latitude
  Option       "XkbOptions" "Compose,compose:rctrl"
  Option       "XkbRules" "xfree86"
  Option       "XkbVariant" "nodeadkeys,"
  Option       "Xleds" "1 2 3"
EndSection

Copying old /usr/share/X11/xkb to /usr/local/share/xkb did not help.
Any ideas?

Greetings, Johannes