diff --git a/meta/classes/utils.bbclass b/meta/classes/utils.bbclass
new file mode 100644
index 0000000..81b92cb
--- /dev/null
+++ b/meta/classes/utils.bbclass
@@ -0,0 +1,380 @@
+# For compatibility
+def base_path_join(a, *p):
+    return oe.path.join(a, *p)
+
+def base_path_relative(src, dest):
+    return oe.path.relative(src, dest)
+
+def base_path_out(path, d):
+    return oe.path.format_display(path, d)
+
+def base_read_file(filename):
+    return oe.utils.read_file(filename)
+
+def base_ifelse(condition, iftrue = True, iffalse = False):
+    return oe.utils.ifelse(condition, iftrue, iffalse)
+
+def base_conditional(variable, checkvalue, truevalue, falsevalue, d):
+    return oe.utils.conditional(variable, checkvalue, truevalue, falsevalue, d)
+
+def base_less_or_equal(variable, checkvalue, truevalue, falsevalue, d):
+    return oe.utils.less_or_equal(variable, checkvalue, truevalue, falsevalue, d)
+
+def base_version_less_or_equal(variable, checkvalue, truevalue, falsevalue, d):
+    return oe.utils.version_less_or_equal(variable, checkvalue, truevalue, falsevalue, d)
+
+def base_contains(variable, checkvalues, truevalue, falsevalue, d):
+    return bb.utils.contains(variable, checkvalues, truevalue, falsevalue, d)
+
+def base_both_contain(variable1, variable2, checkvalue, d):
+    return oe.utils.both_contain(variable1, variable2, checkvalue, d)
+
+def base_prune_suffix(var, suffixes, d):
+    return oe.utils.prune_suffix(var, suffixes, d)
+
+def oe_filter(f, str, d):
+    return oe.utils.str_filter(f, str, d)
+
+def oe_filter_out(f, str, d):
+    return oe.utils.str_filter_out(f, str, d)
+
+def machine_paths(d):
+    """List any existing machine specific filespath directories"""
+    machine = d.getVar("MACHINE", True)
+    filespathpkg = d.getVar("FILESPATHPKG", True).split(":")
+    for basepath in d.getVar("FILESPATHBASE", True).split(":"):
+        for pkgpath in filespathpkg:
+            machinepath = os.path.join(basepath, pkgpath, machine)
+            if os.path.isdir(machinepath):
+                yield machinepath
+
+def is_machine_specific(d):
+    """Determine whether the current recipe is machine specific"""
+    machinepaths = set(machine_paths(d))
+    srcuri = d.getVar("SRC_URI", True).split()
+    for url in srcuri:
+        fetcher = bb.fetch2.Fetch([srcuri], d)
+        if url.startswith("file://"):
+            if any(fetcher.localpath(url).startswith(mp + "/") for mp in machinepaths):
+                return True
+
+oe_soinstall() {
+	# Purpose: Install shared library file and
+	#          create the necessary links
+	# Example:
+	#
+	# oe_
+	#
+	#bbnote installing shared library $1 to $2
+	#
+	libname=`basename $1`
+	install -m 755 $1 $2/$libname
+	sonamelink=`${HOST_PREFIX}readelf -d $1 |grep 'Library soname:' |sed -e 's/.*\[\(.*\)\].*/\1/'`
+	solink=`echo $libname | sed -e 's/\.so\..*/.so/'`
+	ln -sf $libname $2/$sonamelink
+	ln -sf $libname $2/$solink
+}
+
+oe_libinstall() {
+	# Purpose: Install a library, in all its forms
+	# Example
+	#
+	# oe_libinstall libltdl ${STAGING_LIBDIR}/
+	# oe_libinstall -C src/libblah libblah ${D}/${libdir}/
+	dir=""
+	libtool=""
+	silent=""
+	require_static=""
+	require_shared=""
+	staging_install=""
+	while [ "$#" -gt 0 ]; do
+		case "$1" in
+		-C)
+			shift
+			dir="$1"
+			;;
+		-s)
+			silent=1
+			;;
+		-a)
+			require_static=1
+			;;
+		-so)
+			require_shared=1
+			;;
+		-*)
+			bbfatal "oe_libinstall: unknown option: $1"
+			;;
+		*)
+			break;
+			;;
+		esac
+		shift
+	done
+
+	libname="$1"
+	shift
+	destpath="$1"
+	if [ -z "$destpath" ]; then
+		bbfatal "oe_libinstall: no destination path specified"
+	fi
+	if echo "$destpath/" | egrep '^${STAGING_LIBDIR}/' >/dev/null
+	then
+		staging_install=1
+	fi
+
+	__runcmd () {
+		if [ -z "$silent" ]; then
+			echo >&2 "oe_libinstall: $*"
+		fi
+		$*
+	}
+
+	if [ -z "$dir" ]; then
+		dir=`pwd`
+	fi
+
+	dotlai=$libname.lai
+
+	# Sanity check that the libname.lai is unique
+	number_of_files=`(cd $dir; find . -name "$dotlai") | wc -l`
+	if [ $number_of_files -gt 1 ]; then
+		bbfatal "oe_libinstall: $dotlai is not unique in $dir"
+	fi
+
+
+	dir=$dir`(cd $dir;find . -name "$dotlai") | sed "s/^\.//;s/\/$dotlai\$//;q"`
+	olddir=`pwd`
+	__runcmd cd $dir
+
+	lafile=$libname.la
+
+	# If such file doesn't exist, try to cut version suffix
+	if [ ! -f "$lafile" ]; then
+		libname1=`echo "$libname" | sed 's/-[0-9.]*$//'`
+		lafile1=$libname.la
+		if [ -f "$lafile1" ]; then
+			libname=$libname1
+			lafile=$lafile1
+		fi
+	fi
+
+	if [ -f "$lafile" ]; then
+		# libtool archive
+		eval `cat $lafile|grep "^library_names="`
+		libtool=1
+	else
+		library_names="$libname.so* $libname.dll.a $libname.*.dylib"
+	fi
+
+	__runcmd install -d $destpath/
+	dota=$libname.a
+	if [ -f "$dota" -o -n "$require_static" ]; then
+		rm -f $destpath/$dota
+		__runcmd install -m 0644 $dota $destpath/
+	fi
+	if [ -f "$dotlai" -a -n "$libtool" ]; then
+		rm -f $destpath/$libname.la
+		__runcmd install -m 0644 $dotlai $destpath/$libname.la
+	fi
+
+	for name in $library_names; do
+		files=`eval echo $name`
+		for f in $files; do
+			if [ ! -e "$f" ]; then
+				if [ -n "$libtool" ]; then
+					bbfatal "oe_libinstall: $dir/$f not found."
+				fi
+			elif [ -L "$f" ]; then
+				__runcmd cp -P "$f" $destpath/
+			elif [ ! -L "$f" ]; then
+				libfile="$f"
+				rm -f $destpath/$libfile
+				__runcmd install -m 0755 $libfile $destpath/
+			fi
+		done
+	done
+
+	if [ -z "$libfile" ]; then
+		if  [ -n "$require_shared" ]; then
+			bbfatal "oe_libinstall: unable to locate shared library"
+		fi
+	elif [ -z "$libtool" ]; then
+		# special case hack for non-libtool .so.#.#.# links
+		baselibfile=`basename "$libfile"`
+		if (echo $baselibfile | grep -qE '^lib.*\.so\.[0-9.]*$'); then
+			sonamelink=`${HOST_PREFIX}readelf -d $libfile |grep 'Library soname:' |sed -e 's/.*\[\(.*\)\].*/\1/'`
+			solink=`echo $baselibfile | sed -e 's/\.so\..*/.so/'`
+			if [ -n "$sonamelink" -a x"$baselibfile" != x"$sonamelink" ]; then
+				__runcmd ln -sf $baselibfile $destpath/$sonamelink
+			fi
+			__runcmd ln -sf $baselibfile $destpath/$solink
+		fi
+	fi
+
+	__runcmd cd "$olddir"
+}
+
+oe_machinstall() {
+	# Purpose: Install machine dependent files, if available
+	#          If not available, check if there is a default
+	#          If no default, just touch the destination
+	# Example:
+	#                $1  $2   $3         $4
+	# oe_machinstall -m 0644 fstab ${D}/etc/fstab
+	#
+	# TODO: Check argument number?
+	#
+	filename=`basename $3`
+	dirname=`dirname $3`
+
+	for o in `echo ${OVERRIDES} | tr ':' ' '`; do
+		if [ -e $dirname/$o/$filename ]; then
+			bbnote $dirname/$o/$filename present, installing to $4
+			install $1 $2 $dirname/$o/$filename $4
+			return
+		fi
+	done
+#	bbnote overrides specific file NOT present, trying default=$3...
+	if [ -e $3 ]; then
+		bbnote $3 present, installing to $4
+		install $1 $2 $3 $4
+	else
+		bbnote $3 NOT present, touching empty $4
+		touch $4
+	fi
+}
+
+create_cmdline_wrapper () {
+	# Create a wrapper script where commandline options are needed
+	#
+	# These are useful to work around relocation issues, by passing extra options 
+	# to a program
+	#
+	# Usage: create_cmdline_wrapper FILENAME <extra-options>
+
+	cmd=$1
+	shift
+
+	echo "Generating wrapper script for $cmd"
+
+	mv $cmd $cmd.real
+	cmdname=`basename $cmd`
+	cat <<END >$cmd
+#!/bin/bash
+realpath=\`readlink -fn \$0\`
+exec -a \`dirname \$realpath\`/$cmdname \`dirname \$realpath\`/$cmdname.real $@ "\$@"
+END
+	chmod +x $cmd
+}
+
+create_wrapper () {
+	# Create a wrapper script where extra environment variables are needed
+	#
+	# These are useful to work around relocation issues, by setting environment
+	# variables which point to paths in the filesystem.
+	#
+	# Usage: create_wrapper FILENAME [[VAR=VALUE]..]
+
+	cmd=$1
+	shift
+
+	echo "Generating wrapper script for $cmd"
+
+	mv $cmd $cmd.real
+	cmdname=`basename $cmd`
+	cat <<END >$cmd
+#!/bin/bash
+realpath=\`readlink -fn \$0\`
+export $@
+exec -a \`dirname \$realpath\`/$cmdname \`dirname \$realpath\`/$cmdname.real "\$@"
+END
+	chmod +x $cmd
+}
+
+# Copy files/directories from $1 to $2 but using hardlinks
+# (preserve symlinks)
+hardlinkdir () {
+	from=$1
+	to=$2
+	(cd $from; find . -print0 | cpio --null -pdlu $to)
+}
+
+
+def check_app_exists(app, d):
+    app = d.expand(app)
+    path = d.getVar('PATH', d, True)
+    return bool(bb.utils.which(path, app))
+
+def explode_deps(s):
+    return bb.utils.explode_deps(s)
+
+def base_set_filespath(path, d):
+    filespath = []
+    extrapaths = (d.getVar("FILESEXTRAPATHS", True) or "")
+    # Remove default flag which was used for checking
+    extrapaths = extrapaths.replace("__default:", "")
+    # Don't prepend empty strings to the path list
+    if extrapaths != "":
+        path = extrapaths.split(":") + path
+    # The ":" ensures we have an 'empty' override
+    overrides = (":" + (d.getVar("FILESOVERRIDES", True) or "")).split(":")
+    overrides.reverse()
+    for o in overrides:
+        for p in path:
+            if p != "": 
+                filespath.append(os.path.join(p, o))
+    return ":".join(filespath)
+
+def extend_variants(d, var, extend, delim=':'):
+    """Return a string of all bb class extend variants for the given extend"""
+    variants = []
+    whole = d.getVar(var, True) or ""
+    for ext in whole.split():
+        eext = ext.split(delim)
+        if len(eext) > 1 and eext[0] == extend:
+            variants.append(eext[1])
+    return " ".join(variants)
+
+def multilib_pkg_extend(d, pkg):
+    variants = (d.getVar("MULTILIB_VARIANTS", True) or "").split()
+    if not variants:
+        return pkg
+    pkgs = pkg
+    for v in variants:
+        pkgs = pkgs + " " + v + "-" + pkg
+    return pkgs
+
+def all_multilib_tune_values(d, var, unique = True, need_split = True, delim = ' '):
+    """Return a string of all ${var} in all multilib tune configuration"""
+    values = []
+    value = d.getVar(var, True) or ""
+    if value != "":
+        if need_split:
+            for item in value.split(delim):
+                values.append(item)
+        else:
+            values.append(value)
+    variants = d.getVar("MULTILIB_VARIANTS", True) or ""
+    for item in variants.split():
+        localdata = bb.data.createCopy(d)
+        overrides = localdata.getVar("OVERRIDES", False) + ":virtclass-multilib-" + item
+        localdata.setVar("OVERRIDES", overrides)
+        localdata.setVar("MLPREFIX", item + "-")
+        bb.data.update_data(localdata)
+        value = localdata.getVar(var, True) or ""
+        if value != "":
+            if need_split:
+                for item in value.split(delim):
+                    values.append(item)
+            else:
+                values.append(value)
+    if unique:
+        #we do this to keep order as much as possible
+        ret = []
+        for value in values:
+            if not value in ret:
+                ret.append(value)
+    else:
+        ret = values
+    return " ".join(ret)