busybox: fix conflict with runlevel applet

- remove OE runlevel script which conflicts with busybox's applet
- don't install empty directories

(From OE-Core rev: dca804a9595002ddc3893720a96b7f1a67b6e6c4)

Signed-off-by: Andrej Valek <andrej.valek@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/busybox/busybox.inc

@@ -254,8 +254,7 @@ do_install () {
 			ln -sf busybox ${D}${base_bindir}/busybox.nosuid
 		fi
 	else
-		install -d ${D}${base_bindir} ${D}${base_sbindir}
-		install -d ${D}${libdir} ${D}${bindir} ${D}${sbindir}
+		install -d ${D}${base_bindir} ${D}${bindir} ${D}${libdir}
 		cat busybox.links | while read FILE; do
 			NAME=`basename "$FILE"`
 			install -m 0755 "0_lib/$NAME" "${D}$FILE.${BPN}"
@@ -316,7 +315,6 @@ do_install () {
         if grep "CONFIG_INIT=y" ${B}/.config; then
                 install -D -m 0777 ${WORKDIR}/rcS ${D}${sysconfdir}/init.d/rcS
                 install -D -m 0777 ${WORKDIR}/rcK ${D}${sysconfdir}/init.d/rcK
-                install -D -m 0755 ${WORKDIR}/runlevel ${D}${base_sbindir}/runlevel
         fi
 
     if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then

meta/recipes-core/busybox/busybox/init.cfg

@@ -1,4 +1,5 @@
 CONFIG_INIT=y
+CONFIG_RUNLEVEL=y
 CONFIG_FEATURE_USE_INITTAB=y
 CONFIG_HALT=y
 CONFIG_POWEROFF=y

meta/recipes-core/busybox/busybox_1.29.2.bb

@@ -40,7 +40,6 @@ SRC_URI = "http://www.busybox.net/downloads/busybox-${PV}.tar.bz2;name=tarball \
            file://inittab \
            file://rcS \
            file://rcK \
-           file://runlevel \
            file://makefile-libbb-race.patch \
 "
 SRC_URI_append_libc-musl = " file://musl.cfg "

meta/recipes-core/busybox/files/runlevel

@@ -1,11 +0,0 @@
-#!/bin/sh
-# busybox init does not have LSB ( sysvinit ) like initlevels
-# so lets fake it to 5 which is what we default anyway
-# this helps with opkg post installs where it tries to invoke
-# update-rc.d ad post install step.
-# for package upgrades
-# See code in update-rc.d around line 190 where it calls runlevel
-# program
-#
-echo "5"
-