Index: features/wayland-scanner-client-wayland-protocol-include.prf
--- features/wayland-scanner-client-wayland-protocol-include.prf.orig
+++ features/wayland-scanner-client-wayland-protocol-include.prf
@@ -10,7 +10,7 @@
 # #include <QtWaylandClient/private/wayland-wayland-client-protocol.h>
 # to the wayland-scanner generated files.
 
-isEmpty(QMAKE_WAYLAND_SCANNER):error("QMAKE_WAYLAND_SCANNER not defined for this mkspec")
+QMAKE_WAYLAND_SCANNER = ${LOCALBASE}/bin/wayland-scanner
 
 !isEmpty(MODULE_INCNAME) {
     WAYLAND_INCLUDE_DIR = $$MODULE_INCNAME/private