Introduce kcmutils class

kcmutils now uses a mandatory runtime dependency during build, which for
convenienc is provided by this new class.

classes/kcmutils.bbclass

@@ -0,0 +1,12 @@
+# Class for recipes using kcmutils host tools
+#
+# SPDX-FileCopyrightText: 2022 Andreas Cord-Landwehr <cordlandwehr@kde.org>
+#
+# SPDX-License-Identifier: MIT
+
+DEPENDS:append = " \
+    kcmutils \
+    kcmutils-native \
+"
+
+EXTRA_OECMAKE:append = " -DKF5_HOST_TOOLING=${STAGING_DIR_NATIVE}/${libdir}/cmake"

recipes-kf5/tier3/kcmutils.inc

@@ -7,7 +7,7 @@
 LICENSE = "LGPL-2.0"
 PR = "r0"
 
-DEPENDS = " \
+DEPENDS:class-target = " \
     qtbase \
     libxml2-native \
     kitemviews \
@@ -24,11 +24,18 @@ DEPENDS = " \
     kpackage-native \
 "
 
+DEPENDS:class-native = " \
+    qtbase-native \
+    extra-cmake-modules-native \
+"
+
 require kcmutils_metainfo.inc
 inherit cmake_kf5
 inherit ki18n
 inherit reuse_license_checksums
 
+EXTRA_OECMAKE:class-native = " -DTOOLS_ONLY=ON "
+
 FILES:${PN} += " \
     ${libdir}/qml/org/kde/kcmutils/ \
 "