sysvinit/systemd: inherit distro_features_check

index 22a0ecf..ad65819 100644
@@ -28,9 +28,11 @@ SRC_URI[sha256sum] = "60bbc8c1e1792056e23761d22960b30bb13eccc2cabff8c7310a01f4d5
 S = "${WORKDIR}/sysvinit-${PV}"
 B = "${S}/src"
 
-inherit update-alternatives
+inherit update-alternatives distro_features_check
 DEPENDS_append = " update-rc.d-native base-passwd"
 
+REQUIRED_DISTRO_FEATURES = "sysvinit"
+
 ALTERNATIVE_${PN} = "init mountpoint halt reboot runlevel shutdown poweroff last lastb mesg utmpdump wall"
 
 ALTERNATIVE_PRIORITY = "200"

@@ -105,8 +107,3 @@ do_install () {
 	chown root.shutdown ${D}${base_sbindir}/halt ${D}${base_sbindir}/shutdown
 	chmod o-x,u+s ${D}${base_sbindir}/halt ${D}${base_sbindir}/shutdown
 }
-
-python () {
-    if not bb.utils.contains('DISTRO_FEATURES', 'sysvinit', True, False, d):
-        raise bb.parse.SkipPackage("'sysvinit' not in DISTRO_FEATURES")
-}

index d934716..d67a3c9 100644
@@ -11,6 +11,10 @@ SRC_URI = "file://[email protected]"
 
 S = "${WORKDIR}"
 
+# As this package is tied to systemd, only build it when we're also building systemd.
+inherit distro_features_check
+REQUIRED_DISTRO_FEATURES = "systemd"
+
 do_install() {
 	if [ ! -z "${SERIAL_CONSOLES}" ] ; then
 		default_baudrate=`echo "${SERIAL_CONSOLES}" | sed 's/\;.*//'`

@@ -43,10 +47,4 @@ do_install() {
 FILES_${PN} = "${systemd_unitdir}/system/*.service ${sysconfdir}"
 PACKAGE_ARCH = "${MACHINE_ARCH}"
 
-# As this package is tied to systemd, only build it when we're also building systemd.
-python () {
-    if not bb.utils.contains ('DISTRO_FEATURES', 'systemd', True, False, d):
-        raise bb.parse.SkipPackage("'systemd' not in DISTRO_FEATURES")
-}
-
 ALLOW_EMPTY_${PN} = "1"

index 778b868..58426ca 100644
@@ -8,7 +8,11 @@ DEPENDS = "kmod intltool-native gperf-native acl readline libcap libcgroup util-
 
 SECTION = "base/shell"
 
-inherit useradd pkgconfig autotools perlnative update-rc.d update-alternatives qemu systemd ptest gettext bash-completion manpages
+inherit useradd pkgconfig autotools perlnative update-rc.d update-alternatives qemu systemd ptest gettext bash-completion manpages distro_features_check
+
+# As this recipe builds udev, respect systemd being in DISTRO_FEATURES so
+# that we don't build both udev and systemd in world builds.
+REQUIRED_DISTRO_FEATURES = "systemd"
 
 SRC_URI = "git://github.com/systemd/systemd.git;protocol=git \
            file://touchscreen.rules \

@@ -633,10 +637,3 @@ pkg_postinst_udev-hwdb () {
 pkg_prerm_udev-hwdb () {
 	rm -f $D${sysconfdir}/udev/hwdb.bin
 }
-
-# As this recipe builds udev, respect systemd being in DISTRO_FEATURES so
-# that we don't build both udev and systemd in world builds.
-python () {
-    if not bb.utils.contains ('DISTRO_FEATURES', 'systemd', True, False, d):
-        raise bb.parse.SkipPackage("'systemd' not in DISTRO_FEATURES")
-}

index 70e3568..d011047 100644
@@ -23,7 +23,9 @@ SRC_URI = "http://dev.gentoo.org/~blueness/${BPN}/${BP}.tar.gz \
 SRC_URI[md5sum] = "41e19b70462692fefd072a3f38818b6e"
 SRC_URI[sha256sum] = "3e4c56ec2fc1854afd0a31f3affa48f922c62d40ee12a0c1a4b4f152ef5b0f63"
 
-inherit autotools update-rc.d qemu pkgconfig
+inherit autotools update-rc.d qemu pkgconfig distro_features_check
+
+CONFLICT_DISTRO_FEATURES = "systemd"
 
 EXTRA_OECONF = " \
     --sbindir=${base_sbindir} \

@@ -75,11 +77,6 @@ RDEPENDS_eudev-hwdb += "eudev"
 RPROVIDES_${PN} = "hotplug udev"
 RPROVIDES_eudev-hwdb += "udev-hwdb"
 
-python () {
-    if bb.utils.contains ('DISTRO_FEATURES', 'systemd', True, False, d):
-        raise bb.parse.SkipPackage("'systemd' in DISTRO_FEATURES")
-}
-
 PACKAGE_WRITE_DEPS += "qemu-native"
 pkg_postinst_eudev-hwdb () {
     if test -n "$D"; then