diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index 7aa2e144eb..4c681cc870 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -570,8 +570,7 @@ python () {
                 if unskipped_pkgs:
                     for pkg in skipped_pkgs:
                         bb.debug(1, "Skipping the package %s at do_rootfs because of incompatible license(s): %s" % (pkg, ' '.join(skipped_pkgs[pkg])))
-                        mlprefix = d.getVar('MLPREFIX')
-                        d.setVar('LICENSE_EXCLUSION-' + mlprefix + pkg, ' '.join(skipped_pkgs[pkg]))
+                        d.setVar('LICENSE_EXCLUSION-' + pkg, ' '.join(skipped_pkgs[pkg]))
                     for pkg in unskipped_pkgs:
                         bb.debug(1, "Including the package %s" % pkg)
                 else:
diff --git a/meta/classes/fontcache.bbclass b/meta/classes/fontcache.bbclass
index 97e7f17f00..624a420a0d 100644
--- a/meta/classes/fontcache.bbclass
+++ b/meta/classes/fontcache.bbclass
@@ -7,7 +7,7 @@ PACKAGE_WRITE_DEPS += "qemu-native"
 inherit qemu
 
 FONT_PACKAGES ??= "${PN}"
-FONT_EXTRA_RDEPENDS ?= "fontconfig-utils"
+FONT_EXTRA_RDEPENDS ?= "${MLPREFIX}fontconfig-utils"
 FONTCONFIG_CACHE_DIR ?= "${localstatedir}/cache/fontconfig"
 FONTCONFIG_CACHE_PARAMS ?= "-v"
 # You can change this to e.g. FC_DEBUG=16 to debug fc-cache issues,
diff --git a/meta/classes/multilib.bbclass b/meta/classes/multilib.bbclass
index ee677da1e2..9f726e4537 100644
--- a/meta/classes/multilib.bbclass
+++ b/meta/classes/multilib.bbclass
@@ -91,13 +91,12 @@ addhandler multilib_virtclass_handler
 multilib_virtclass_handler[eventmask] = "bb.event.RecipePreFinalise"
 
 python __anonymous () {
-    variant = d.getVar("BBEXTENDVARIANT")
-
-    import oe.classextend
-
-    clsextend = oe.classextend.ClassExtender(variant, d)
-
     if bb.data.inherits_class('image', d):
+        variant = d.getVar("BBEXTENDVARIANT")
+        import oe.classextend
+
+        clsextend = oe.classextend.ClassExtender(variant, d)
+
         clsextend.map_depends_variable("PACKAGE_INSTALL")
         clsextend.map_depends_variable("LINGUAS_INSTALL")
         clsextend.map_depends_variable("RDEPENDS")
@@ -109,6 +108,22 @@ python __anonymous () {
         bb.build.deltask('do_populate_sdk', d)
         bb.build.deltask('do_populate_sdk_ext', d)
         return
+}
+
+python multilib_virtclass_handler_postkeyexp () {
+    cls = d.getVar("BBEXTENDCURR")
+    variant = d.getVar("BBEXTENDVARIANT")
+    if cls != "multilib" or not variant:
+        return
+
+    variant = d.getVar("BBEXTENDVARIANT")
+
+    import oe.classextend
+
+    clsextend = oe.classextend.ClassExtender(variant, d)
+
+    if bb.data.inherits_class('image', d):
+        return
 
     clsextend.map_depends_variable("DEPENDS")
     clsextend.map_variable("PROVIDES")
@@ -129,6 +144,9 @@ python __anonymous () {
     reset_alternative_priority(d)
 }
 
+addhandler multilib_virtclass_handler_postkeyexp
+multilib_virtclass_handler_postkeyexp[eventmask] = "bb.event.RecipePostKeyExpansion"
+
 def reset_alternative_priority(d):
     if not bb.data.inherits_class('update-alternatives', d):
         return
diff --git a/meta/lib/oe/classextend.py b/meta/lib/oe/classextend.py
index f02fbe9fba..e1049ce3e8 100644
--- a/meta/lib/oe/classextend.py
+++ b/meta/lib/oe/classextend.py
@@ -4,11 +4,21 @@
 
 import collections
 
+def get_packages(d):
+    pkgs = d.getVar("PACKAGES_NONML")
+    extcls = d.getVar("EXTENDERCLASS")
+    return extcls.rename_packages_internal(pkgs)
+
+def get_depends(varprefix, d):
+    extcls = d.getVar("EXTENDERCLASS")
+    return extcls.map_depends_variable(varprefix + "_NONML")
+
 class ClassExtender(object):
     def __init__(self, extname, d):
         self.extname = extname
         self.d = d
         self.pkgs_mapping = []
+        self.d.setVar("EXTENDERCLASS", self)
 
     def extend_name(self, name):
         if name.startswith("kernel-") or name == "virtual/kernel":
@@ -24,7 +34,7 @@ class ClassExtender(object):
             if not subs.startswith(self.extname):
                 return "virtual/" + self.extname + "-" + subs
             return name
-        if name.startswith("/"):
+        if name.startswith("/") or (name.startswith("${") and name.endswith("}")):
             return name
         if not name.startswith(self.extname):
             return self.extname + "-" + name
@@ -89,8 +99,14 @@ class ClassExtender(object):
         for dep in deps:
             newdeps[self.map_depends(dep)] = deps[dep]
 
-        self.d.setVar(varname, bb.utils.join_deps(newdeps, False).replace("EXTENDPKGV", "${EXTENDPKGV}"))
+        if not varname.endswith("_NONML"):
+            #if varname == "DEPENDS":
+            self.d.renameVar(varname, varname + "_NONML")
+            self.d.setVar(varname, "${@oe.classextend.get_depends('%s', d)}" % varname)
+            self.d.appendVarFlag(varname, "vardeps", " " + varname + "_NONML")
+        ret = bb.utils.join_deps(newdeps, False).replace("EXTENDPKGV", "${EXTENDPKGV}")
         self.d.setVar("EXTENDPKGV", orig)
+        return ret
 
     def map_packagevars(self):
         for pkg in (self.d.getVar("PACKAGES").split() + [""]):
@@ -109,10 +125,23 @@ class ClassExtender(object):
                continue
             self.pkgs_mapping.append([pkg, self.extend_name(pkg)])
 
-        self.d.setVar("PACKAGES", " ".join([row[1] for row in self.pkgs_mapping]))
+        self.d.renameVar("PACKAGES", "PACKAGES_NONML")
+        self.d.setVar("PACKAGES", "${@oe.classextend.get_packages(d)}")
+
+    def rename_packages_internal(self, pkgs):
+        self.pkgs_mapping = []
+        for pkg in (self.d.expand(pkgs) or "").split():
+            if pkg.startswith(self.extname):
+               self.pkgs_mapping.append([pkg.split(self.extname + "-")[1], pkg])
+               continue
+            self.pkgs_mapping.append([pkg, self.extend_name(pkg)])
+
+        return " ".join([row[1] for row in self.pkgs_mapping])
 
     def rename_package_variables(self, variables):
         for pkg_mapping in self.pkgs_mapping:
+            if pkg_mapping[0].startswith("${") and pkg_mapping[0].endswith("}"):
+                continue
             for subs in variables:
                 self.d.renameVar("%s_%s" % (subs, pkg_mapping[0]), "%s_%s" % (subs, pkg_mapping[1]))
 
diff --git a/meta/recipes-core/glibc/glibc-package.inc b/meta/recipes-core/glibc/glibc-package.inc
index aa8e059216..ff25fd4187 100644
--- a/meta/recipes-core/glibc/glibc-package.inc
+++ b/meta/recipes-core/glibc/glibc-package.inc
@@ -24,7 +24,7 @@ libc_baselibs_append = " ${@oe.utils.conditional('ARCH_DYNAMIC_LOADER', '', '',
 INSANE_SKIP_${PN}_append_aarch64 = " libdir"
 
 FILES_${PN} = "${libc_baselibs} ${libexecdir}/*"
-RRECOMMENDS_${PN} = "${@bb.utils.filter('DISTRO_FEATURES', 'ldconfig', d)}"
+RRECOMMENDS_${PN} = "${@bb.utils.contains('DISTRO_FEATURES', 'ldconfig', '${MLPREFIX}ldconfig', '', d)}"
 FILES_ldconfig = "${base_sbindir}/ldconfig ${sysconfdir}/ld.so.conf"
 FILES_ldd = "${bindir}/ldd"
 FILES_libsegfault = "${base_libdir}/libSegFault*"
diff --git a/meta/recipes-core/packagegroups/packagegroup-base.bb b/meta/recipes-core/packagegroups/packagegroup-base.bb
index 1f802da09b..90b79adfdc 100644
--- a/meta/recipes-core/packagegroups/packagegroup-base.bb
+++ b/meta/recipes-core/packagegroups/packagegroup-base.bb
@@ -110,16 +110,16 @@ python __anonymous () {
     machine_features= set(d.getVar("MACHINE_FEATURES").split())
 
     if "bluetooth" in distro_features and not "bluetooth" in machine_features and ("pcmcia" in machine_features or "pci" in machine_features or "usbhost" in machine_features):
-        d.setVar("ADD_BT", "packagegroup-base-bluetooth")
+        d.setVar("ADD_BT", "${MLPREFIX}packagegroup-base-bluetooth")
 
     if "wifi" in distro_features and not "wifi" in machine_features and ("pcmcia" in machine_features or "pci" in machine_features or "usbhost" in machine_features):
-        d.setVar("ADD_WIFI", "packagegroup-base-wifi")
+        d.setVar("ADD_WIFI", "${MLPREFIX}packagegroup-base-wifi")
 
     if "3g" in distro_features and not "3g" in machine_features and ("pcmcia" in machine_features or "pci" in machine_features or "usbhost" in machine_features):
-        d.setVar("ADD_3G", "packagegroup-base-3g")
+        d.setVar("ADD_3G", "${MLPREFIX}packagegroup-base-3g")
 
     if "nfc" in distro_features and not "nfc" in machine_features and ("usbhost" in machine_features):
-        d.setVar("ADD_NFC", "packagegroup-base-nfc")
+        d.setVar("ADD_NFC", "${MLPREFIX}packagegroup-base-nfc")
 }
 
 #
diff --git a/meta/recipes-core/psplash/psplash_git.bb b/meta/recipes-core/psplash/psplash_git.bb
index 22c71f099b..44f0007daf 100644
--- a/meta/recipes-core/psplash/psplash_git.bb
+++ b/meta/recipes-core/psplash/psplash_git.bb
@@ -22,6 +22,7 @@ SPLASH_IMAGES = "file://psplash-poky-img.h;outsuffix=default"
 python __anonymous() {
     oldpkgs = d.getVar("PACKAGES").split()
     splashfiles = d.getVar('SPLASH_IMAGES').split()
+    mlprefix = d.getVar('MLPREFIX') or ''
     pkgs = []
     localpaths = []
     for uri in splashfiles:
@@ -46,9 +47,9 @@ python __anonymous() {
     # Set these so that we have less work to do in do_compile and do_install_append
     d.setVar("SPLASH_INSTALL", " ".join(pkgs))
     d.setVar("SPLASH_LOCALPATHS", " ".join(localpaths))
+    for p in pkgs:
+        d.prependVar("PACKAGES", "%s%s " % (mlprefix, p))
 
-    d.prependVar("PACKAGES", "%s " % (" ".join(pkgs)))
-    mlprefix = d.getVar('MLPREFIX') or ''
     pn = d.getVar('PN') or ''
     for p in pkgs:
         ep = '%s%s' % (mlprefix, p)
diff --git a/meta/recipes-devtools/perl/perl_5.30.2.bb b/meta/recipes-devtools/perl/perl_5.30.2.bb
index 778c420b2e..26138ea9e5 100644
--- a/meta/recipes-devtools/perl/perl_5.30.2.bb
+++ b/meta/recipes-devtools/perl/perl_5.30.2.bb
@@ -328,7 +328,7 @@ python split_perl_packages () {
 
 python() {
     if d.getVar('CLASSOVERRIDE') == "class-target":
-        d.setVar("PACKAGES_DYNAMIC", "^perl-module-.*(?<!native)$")
+        d.setVar("PACKAGES_DYNAMIC", "^${MLPREFIX}perl-module-.*(?<!native)$")
     elif d.getVar('CLASSOVERRIDE') == "class-native":
         d.setVar("PACKAGES_DYNAMIC", "^perl-module-.*-native$")
     elif d.getVar('CLASSOVERRIDE') == "class-nativesdk":
diff --git a/meta/recipes-devtools/python/python3_3.8.2.bb b/meta/recipes-devtools/python/python3_3.8.2.bb
index a4a16fd495..0474f07214 100644
--- a/meta/recipes-devtools/python/python3_3.8.2.bb
+++ b/meta/recipes-devtools/python/python3_3.8.2.bb
@@ -311,8 +311,8 @@ do_create_manifest[depends] += "${PN}:do_patch"
 
 # manual dependency additions
 RRECOMMENDS_${PN}-core_append_class-nativesdk = " nativesdk-python3-modules"
-RRECOMMENDS_${PN}-crypt_append_class-target = " openssl ca-certificates"
-RRECOMMENDS_${PN}-crypt_append_class-nativesdk = " openssl ca-certificates"
+RRECOMMENDS_${PN}-crypt_append_class-target = " ${MLPREFIX}openssl ${MLPREFIX}ca-certificates"
+RRECOMMENDS_${PN}-crypt_append_class-nativesdk = " ${MLPREFIX}openssl ${MLPREFIX}ca-certificates"
 
 # For historical reasons PN is empty and provided by python3-modules
 FILES_${PN} = ""
@@ -322,7 +322,7 @@ FILES_${PN}-pydoc += "${bindir}/pydoc${PYTHON_MAJMIN} ${bindir}/pydoc3"
 FILES_${PN}-idle += "${bindir}/idle3 ${bindir}/idle${PYTHON_MAJMIN}"
 
 # provide python-pyvenv from python3-venv
-RPROVIDES_${PN}-venv += "python3-pyvenv"
+RPROVIDES_${PN}-venv += "${MLPREFIX}python3-pyvenv"
 
 # package libpython3
 PACKAGES =+ "libpython3 libpython3-staticdev"
@@ -333,8 +333,8 @@ INSANE_SKIP_${PN}-dev += "dev-elf"
 # catch all the rest (unsorted)
 PACKAGES += "${PN}-misc"
 RDEPENDS_${PN}-misc += "python3-core python3-email python3-codecs python3-pydoc python3-pickle python3-audio"
-RDEPENDS_${PN}-modules_append_class-target = " python3-misc"
-RDEPENDS_${PN}-modules_append_class-nativesdk = " python3-misc"
+RDEPENDS_${PN}-modules_append_class-target = " ${MLPREFIX}python3-misc"
+RDEPENDS_${PN}-modules_append_class-nativesdk = " ${MLPREFIX}python3-misc"
 FILES_${PN}-misc = "${libdir}/python${PYTHON_MAJMIN} ${libdir}/python${PYTHON_MAJMIN}/lib-dynload"
 
 # catch manpage
@@ -348,5 +348,5 @@ RDEPENDS_${PN}-ptest_append_libc-glibc = " locale-base-tr-tr.iso-8859-9"
 RDEPENDS_${PN}-tkinter += "${@bb.utils.contains('PACKAGECONFIG', 'tk', 'tk tk-lib', '', d)}"
 RDEPENDS_${PN}-dev = ""
 
-RDEPENDS_${PN}-tests_append_class-target = " bash"
-RDEPENDS_${PN}-tests_append_class-nativesdk = " bash"
+RDEPENDS_${PN}-tests_append_class-target = " ${MLPREFIX}bash"
+RDEPENDS_${PN}-tests_append_class-nativesdk = " ${MLPREFIX}bash"
diff --git a/meta/recipes-extended/packagegroups/packagegroup-core-full-cmdline.bb b/meta/recipes-extended/packagegroups/packagegroup-core-full-cmdline.bb
index 15a8e6dedc..16c2f9f2aa 100644
--- a/meta/recipes-extended/packagegroups/packagegroup-core-full-cmdline.bb
+++ b/meta/recipes-extended/packagegroups/packagegroup-core-full-cmdline.bb
@@ -32,21 +32,23 @@ python __anonymous () {
     namemap["packagegroup-core-full-cmdline-sys-services"] = "packagegroup-core-sys-services"
 
     packages = d.getVar("PACKAGES").split()
+    mlprefix = d.getVar("MLPREFIX")
     for pkg in packages:
+        pkg2 = pkg[len(mlprefix):]
         if pkg.endswith('-dev'):
-            mapped = namemap.get(pkg[:-4], None)
+            mapped = namemap.get(pkg2[:-4], None)
             if mapped:
                 mapped += '-dev'
         elif pkg.endswith('-dbg'):
-            mapped = namemap.get(pkg[:-4], None)
+            mapped = namemap.get(pkg2[:-4], None)
             if mapped:
                 mapped += '-dbg'
         else:
-            mapped = namemap.get(pkg, None)
+            mapped = namemap.get(pkg2, None)
 
         if mapped:
             oldtaskname = mapped.replace("packagegroup-core", "task-core")
-            mapstr = " %s %s" % (mapped, oldtaskname)
+            mapstr = " %s%s %s%s" % (mlprefix, mapped, mlprefix, oldtaskname)
             d.appendVar("RPROVIDES_%s" % pkg, mapstr)
             d.appendVar("RREPLACES_%s" % pkg, mapstr)
             d.appendVar("RCONFLICTS_%s" % pkg, mapstr)
diff --git a/meta/recipes-graphics/mesa/mesa.inc b/meta/recipes-graphics/mesa/mesa.inc
index fede691d6f..bb43a9a8b6 100644
--- a/meta/recipes-graphics/mesa/mesa.inc
+++ b/meta/recipes-graphics/mesa/mesa.inc
@@ -212,18 +212,20 @@ python __anonymous() {
               ("gles", "libgles3",)):
         if not p[0] in pkgconfig:
             continue
-        fullp = p[1] + "-mesa"
-        pkgs = " ".join(p[1:])
+        mlprefix = d.getVar("MLPREFIX")
+        fullp = mlprefix + p[1] + "-mesa"
+        mlprefix = d.getVar("MLPREFIX")
+        pkgs = " ".join(mlprefix + x for x in p[1:])
         d.setVar("DEBIAN_NOAUTONAME_" + fullp, "1")
         d.appendVar("RREPLACES_" + fullp, pkgs)
         d.appendVar("RPROVIDES_" + fullp, pkgs)
         d.appendVar("RCONFLICTS_" + fullp, pkgs)
 
-        d.appendVar("RRECOMMENDS_" + fullp, " mesa-megadriver")
+        d.appendVar("RRECOMMENDS_" + fullp, " ${MLPREFIX}mesa-megadriver")
 
         # For -dev, the first element is both the Debian and original name
         fullp += "-dev"
-        pkgs = p[1] + "-dev"
+        pkgs = mlprefix + p[1] + "-dev"
         d.setVar("DEBIAN_NOAUTONAME_" + fullp, "1")
         d.appendVar("RREPLACES_" + fullp, pkgs)
         d.appendVar("RPROVIDES_" + fullp, pkgs)
diff --git a/meta/recipes-multimedia/alsa/alsa-plugins_1.2.1.bb b/meta/recipes-multimedia/alsa/alsa-plugins_1.2.1.bb
index 9882e12763..d092b158f2 100644
--- a/meta/recipes-multimedia/alsa/alsa-plugins_1.2.1.bb
+++ b/meta/recipes-multimedia/alsa/alsa-plugins_1.2.1.bb
@@ -167,7 +167,7 @@ FILES_${PN}-pulseaudio-conf += "\
 "
 
 RDEPENDS_${PN}-pulseaudio-conf += "\
-        libasound-module-conf-pulse \
-        libasound-module-ctl-pulse \
-        libasound-module-pcm-pulse \
+        ${MLPREFIX}libasound-module-conf-pulse \
+        ${MLPREFIX}libasound-module-ctl-pulse \
+        ${MLPREFIX}libasound-module-pcm-pulse \
 "
diff --git a/meta/recipes-support/boost/boost.inc b/meta/recipes-support/boost/boost.inc
index 8eb9494381..ca140d595f 100644
--- a/meta/recipes-support/boost/boost.inc
+++ b/meta/recipes-support/boost/boost.inc
@@ -62,12 +62,16 @@ PACKAGES = "${PN}-dbg ${BOOST_PACKAGES}"
 python __anonymous () {
     packages = []
     extras = []
+    mlprefix = d.getVar("MLPREFIX")
     for lib in d.getVar('BOOST_LIBS').split():
         extras.append("--with-%s" % lib)
-        pkg = "boost-%s" % lib.replace("_", "-")
-        packages.append(pkg)
+        pkg = "boost-%s" % (lib.replace("_", "-"))
+        packages.append(mlprefix + pkg)
         if not d.getVar("FILES_%s" % pkg):
-                d.setVar("FILES_%s" % pkg, "${libdir}/libboost_%s*.so.*" % lib)
+                d.setVar("FILES_%s%s" % (mlprefix, pkg), "${libdir}/libboost_%s*.so.*" % lib)
+        else:
+                d.setVar("FILES_%s%s" % (mlprefix, pkg), d.getVar("FILES_%s" % pkg))
+
     d.setVar("BOOST_PACKAGES", " ".join(packages))
     d.setVar("BJAM_EXTRA", " ".join(extras))
 }