multilib related fixed for opkg backend

index 100f465..96675de 100644
@@ -46,6 +46,8 @@ PKGDEST = "${WORKDIR}/packages-split"
 
 LOCALE_SECTION ?= ''
 
+ALL_MULTILIB_PACKAGE_ARCHS = "${@all_multilib_tune_values(d, 'PACKAGE_ARCHS')}"
+
 # rpm is used for the per-file dependency identification
 PACKAGE_DEPENDS += "rpm-native"
 

@@ -184,17 +186,6 @@ python () {
         bb.data.setVarFlag('do_package', 'deptask', " ".join(deps), d)
     else:
         d.setVar("PACKAGERDEPTASK", "")
-
-    multilib_archs = []
-    multilibs= d.getVar('MULTILIBS', True) or ""
-    if multilibs:
-        for ext in multilibs.split():
-            eext = ext.split(':')
-            if len(eext) > 1:
-                if eext[0] == 'multilib':
-                    multilib_archs.append('ml' + eext[1])
-
-    d.setVar("MULTILIB_ARCHS", ' '.join(multilib_archs))
 }
 
 def splitfile(file, debugfile, debugsrcdir, d):

index 8ecf511..e83aff8 100644
@@ -64,14 +64,13 @@ python package_ipk_install () {
 package_tryout_install_multilib_ipk() {
 	#try install multilib
 	multilib_tryout_dirs=""
-	for arch in ${MULTILIB_ARCHS}; do
-		local target_rootfs="${MULTILIB_TEMP_ROOTFS}/${arch}"
+	for item in ${MULTILIB_VARIANTS}; do
+		local target_rootfs="${MULTILIB_TEMP_ROOTFS}/${item}"
 		local ipkg_args="-f ${INSTALL_CONF_IPK} -o ${target_rootfs} --force_overwrite"
 		local selected_pkg=""
-		#strip the "ml" from package_arch
-		local pkgarch_prefix="${arch:2}-"
-		for pkg in "${INSTALL_PACKAGES_MULTILIB_IPK}"; do
-			if [ ${pkg:0:${#pkgarch_prefix}} == ${pkgarch_prefix} ]; then
+		local pkgname_prefix="${item}-"
+		for pkg in ${INSTALL_PACKAGES_MULTILIB_IPK}; do
+			if [ ${pkg:0:${#pkgname_prefix}} == ${pkgname_prefix} ]; then
 			    selected_pkg="${selected_pkg} ${pkg}"
 			fi
 		done

@@ -163,7 +162,7 @@ ipk_log_check() {
 package_update_index_ipk () {
 	set -x
 
-	ipkgarchs="${PACKAGE_ARCHS} ${SDK_PACKAGE_ARCHS}"
+	ipkgarchs="${ALL_MULTILIB_PACKAGE_ARCHS} ${SDK_PACKAGE_ARCHS}"
 
 	if [ ! -z "${DEPLOY_KEEP_PACKAGES}" ]; then
 		return

@@ -203,19 +202,12 @@ package_generate_ipkg_conf () {
 	done
 
 	echo "src oe file:${DEPLOY_DIR_IPK}" >> ${IPKGCONF_TARGET}
-	ipkgarchs="${PACKAGE_ARCHS}"
+	ipkgarchs="${ALL_MULTILIB_PACKAGE_ARCHS}"
 	for arch in $ipkgarchs; do
 		if [ -e ${DEPLOY_DIR_IPK}/$arch/Packages ] ; then
 		        echo "src oe-$arch file:${DEPLOY_DIR_IPK}/$arch" >> ${IPKGCONF_TARGET}
 		fi
 	done
-
-	multilib_archs="${MULTILIB_ARCHS}"
-	for arch in $multilib_archs; do
-		if [ -e ${DEPLOY_DIR_IPK}/$arch/Packages ] ; then
-		        echo "src oe-$arch file:${DEPLOY_DIR_IPK}/$arch" >> ${IPKGCONF_TARGET}
-		fi
-	done
 }
 
 package_generate_archlist () {

@@ -226,18 +218,12 @@ package_generate_archlist () {
 		priority=$(expr $priority + 5)
 	done
 
-	ipkgarchs="${PACKAGE_ARCHS}"
+	ipkgarchs="${ALL_MULTILIB_PACKAGE_ARCHS}"
 	priority=1
 	for arch in $ipkgarchs; do
 		echo "arch $arch $priority" >> ${IPKGCONF_TARGET}
 		priority=$(expr $priority + 5)
 	done
-
-	multilib_archs="${MULTILIB_ARCHS}"
-	for arch in $multilib_archs; do
-		echo "arch $arch $priority" >> ${IPKGCONF_TARGET}
-		priority=$(expr $priority + 5)
-	done
 }
 
 python do_package_ipk () {

index c66c184..56abdd8 100644
@@ -352,12 +352,16 @@ def extend_variants(d, var, extend, delim=':'):
 			variants.append(eext[1])
 	return " ".join(variants)
 
-def all_multilib_tune_values(d, var, unique=True):
+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 != "":
-		values.append(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)

@@ -366,7 +370,17 @@ def all_multilib_tune_values(d, var, unique=True):
 		bb.data.update_data(localdata)
 		value = localdata.getVar(var, True) or ""
 		if value != "":
-			values.append(value)
+			if need_split:
+				for item in value.split(delim):
+					values.append(item)
+			else:
+				values.append(value)
 	if unique:
-		values = set(values)
-	return " ".join(values)
+		#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)