+Dependencies for libxkbregistry:
+- libxkbregistry is a sublibrary of libxkbcommon and cannot be built without
+ building libxbkcommon. The files produced are otherwise independent.
+
+- libxml2
+
+- (build optional, runtime requirement) xkeyboard-config
+ During build, for automatically detecting the value of
+ -Dxkb-config-root instead of guessing (/usr/share/X11/xkb).
+
+Dependencies for Wayland tests:
+- wayland-client>=1.2.0, wayland-scanner, wayland-protocols>=1.0.
+ To disable, use -Denable-wayland=false.
+