[base system & package/block-extroot] Merged 23110-23112 which allows block-extroot to be

loaded as a module rather than being required to be in the image.  Thanks JoW for pushing
and helping with this.


git-svn-id: svn://svn.openwrt.org/openwrt/branches/backfire@23113 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/base-files/files/etc/functions.sh

@@ -291,4 +291,25 @@ service_kill() {
 	done
 }
 
+
+pi_include() {
+	if [ -f "/tmp/overlay/$1" ]; then
+		. "/tmp/overlay/$1"
+	elif [ -f "$1" ]; then
+		. "$1"
+	elif [ -d "/tmp/overlay/$1" ]; then
+		for src_script in /tmp/overlay/$1/*.sh; do
+			. "$src_script"
+		done
+	elif [ -d "$1" ]; then
+		for src_script in $1/*.sh; do
+			. "$src_script"
+		done
+	else
+		echo "WARNING: $1 not found"
+		return 1
+	fi
+	return 0
+}
+
 [ -z "$IPKG_INSTROOT" -a -f /lib/config/uci.sh ] && . /lib/config/uci.sh