def populate_packages(d):
    def update_useradd_package(pkg):
        bb.debug(1, 'adding user/group calls to preinst for %s' % pkg)

        """
        useradd preinst is appended here because pkg_preinst may be
        required to execute on the target. Not doing so may cause
        useradd preinst to be invoked twice, causing unwanted warnings.
        """
        preinst = d.getVar('pkg_preinst:%s' % pkg) or d.getVar('pkg_preinst')
        if not preinst:
            preinst = '#!/bin/sh\n'
        preinst += 'bbnote () {\n\techo "NOTE: $*"\n}\n'
        preinst += 'bbwarn () {\n\techo "WARNING: $*"\n}\n'
        preinst += 'bbfatal () {\n\techo "ERROR: $*"\n\texit 1\n}\n'
        preinst += 'perform_groupadd () {\n%s}\n' % d.getVar('perform_groupadd')
        preinst += 'perform_useradd () {\n%s}\n' % d.getVar('perform_useradd')
        preinst += 'perform_groupmems () {\n%s}\n' % d.getVar('perform_groupmems')
        preinst += d.getVar('useradd_preinst')
        # Expand out the *_PARAM variables to the package specific versions
        for rep in ["GROUPADD_PARAM", "USERADD_PARAM", "GROUPMEMS_PARAM"]:
            val = d.getVar(rep + ":" + pkg) or ""
            preinst = preinst.replace("${" + rep + "}", val)
        d.setVar('pkg_preinst:%s' % pkg, preinst)

        # RDEPENDS setup
        rdepends = d.getVar("RDEPENDS:%s" % pkg) or ""
        rdepends += ' ' + d.getVar('MLPREFIX', False) + 'base-passwd'
        rdepends += ' ' + d.getVar('MLPREFIX', False) + 'shadow'
        # base-files is where the default /etc/skel is packaged
        rdepends += ' ' + d.getVar('MLPREFIX', False) + 'base-files'
        d.setVar("RDEPENDS:%s" % pkg, rdepends)

    # Add the user/group preinstall scripts and RDEPENDS requirements
    # to packages specified by USERADD_PACKAGES
    if not bb.data.inherits_class('nativesdk', d) \
        and not bb.data.inherits_class('native', d):
        useradd_packages = d.getVar('USERADD_PACKAGES') or ""
        for pkg in useradd_packages.split():
            update_useradd_package(pkg)
    oe.package.populate_packages(d)

populate_packages(d)