make_system_dirs()
{
	#
	# Install FHS system directories.
	#
	for d in boot etc etc/modprobe.d etc/skel \
		home dev proc usr mnt opt sys var run/lock; do
		[ ! -d ${d} ] && install -d ${d}
	done

	[ ! -d root ] && install -dm750 root
	[ ! -d var/spool/mail ] && install -dm1777 var/spool/mail

	for d in local local/bin local/sbin local/include local/lib \
		bin include lib sbin src; do
		[ ! -d usr/${d} ] && install -d usr/${d}
	done

	for d in locale misc terminfo zoneinfo doc info; do
		[ ! -d usr/share/${d} ] && install -d usr/share/${d}
		[ ! -d usr/local/share/${d} ] && install -d usr/local/share/${d}
	done

	for d in 1 2 3 4 5 6 7 8; do
		[ ! -d usr/share/man/man${d} ] && \
			install -d usr/share/man/man${d}
		[ ! -d usr/local/share/man/man${d} ] && \
			install -d usr/local/share/man/man${d}
	done

	# Create /bin, /sbin and /lib symlinks to /usr.
	for d in bin sbin lib; do
		if [ ! -h "$d" -a -d "$d" ]; then
			echo "/${d} must not be a directory, exiting!"
			exit 1
		fi
		ln -sf usr/${d} .
	done

	for d in log opt cache lib; do
		[ ! -d var/${d} ] && install -d var/${d}
	done

	# Create /var/run and /var/lock symlinks.
	for d in run lock; do
		if [ ! -h "var/$d" -a -d var/${d} ]; then
			echo "/${d} must not be a directory, exiting!"
			exit 1
		fi
	done
	cd var && ln -sf ../run . && cd ..
	cd var && ln -sf ../run/lock . && cd ..

	if [ "$(uname -m)" = "x86_64" ]; then
		ln -sf usr/lib lib64
		cd usr && ln -sf lib lib64 && cd ..
		install -d usr/lib32
		ln -sf usr/lib32 lib32
	fi

	install -dm1777 tmp
	install -dm1777 var/tmp
}

case "${ACTION}" in
post)
	make_system_dirs
	;;
esac
