package/sdbus-cpp: add support to build the host stub generator

Add a host option to build the xml2cpp-codegen part of the
sdbus-cpp package for use in creating adaptor and proxy
implementations from the D-Bus IDL.

Signed-off-by: Charles Hardin <ckhardin@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/Config.in.host

@@ -99,6 +99,7 @@ menu "Host utilities"
 	source "package/rustc/Config.in.host"
 	source "package/s6-rc/Config.in.host"
 	source "package/sam-ba/Config.in.host"
+	source "package/sdbus-cpp/Config.in.host"
 	source "package/sdbusplus/Config.in.host"
 	source "package/sentry-cli/Config.in.host"
 	source "package/sloci-image/Config.in.host"

package/sdbus-cpp/Config.in.host

@@ -0,0 +1,11 @@
+config BR2_PACKAGE_HOST_SDBUS_CPP
+	bool "host sdbus-c++"
+	depends on BR2_HOST_GCC_AT_LEAST_7
+	help
+	  sdbus-c++ is a high-level C++ D-Bus library for Linux
+	  designed to provide expressive, easy-to-use API in modern C++.
+
+	  This will build the stub code generator for the adaptor and
+	  proxy interfaces from D-Bus IDL.
+
+	  https://github.com/Kistler-Group/sdbus-cpp

package/sdbus-cpp/sdbus-cpp.mk

@@ -12,4 +12,13 @@ SDBUS_CPP_DEPENDENCIES = host-pkgconf systemd
 SDBUS_CPP_LICENSE = LGPL-2.1+ with exception (headers)
 SDBUS_CPP_LICENSE_FILES = COPYING COPYING-LGPL-Exception
 
+# Host build for sdbus-c++-xml2cpp
+HOST_SDBUS_CPP_DEPENDENCIES = host-pkgconf host-systemd
+HOST_SDBUS_CPP_CONF_OPTS = \
+	-DBUILD_CODE_GEN=ON \
+	-DBUILD_DOC=OFF \
+	-DBUILD_TESTS=OFF \
+	-DBUILD_LIBSYSTEMD=OFF
+
 $(eval $(cmake-package))
+$(eval $(host-cmake-package))