python siteconfig_do_siteconfig () {
    shared_state = sstate_state_fromvars(d)
    if shared_state['task'] != 'populate_sysroot':
        return
    if not os.path.isdir(os.path.join(d.getVar('FILE_DIRNAME'), 'site_config')):
        bb.debug(1, "No site_config directory, skipping do_siteconfig")
        return
    sstate_install(shared_state, d)
    bb.build.exec_func('do_siteconfig_gencache', d)
    sstate_clean(shared_state, d)
}

EXTRASITECONFIG ?= ""

siteconfig_do_siteconfig_gencache () {
	mkdir -p ${WORKDIR}/site_config_${MACHINE}
	gen-site-config ${FILE_DIRNAME}/site_config \
		>${WORKDIR}/site_config_${MACHINE}/configure.ac
	cd ${WORKDIR}/site_config_${MACHINE}
	autoconf
	rm -f ${BPN}_cache
	CONFIG_SITE="" ${EXTRASITECONFIG} ./configure ${CONFIGUREOPTS} --cache-file ${BPN}_cache
	sed -n -e "/ac_cv_c_bigendian/p" -e "/ac_cv_sizeof_/p" \
		-e "/ac_cv_type_/p" -e "/ac_cv_header_/p" -e "/ac_cv_func_/p" \
		< ${BPN}_cache > ${BPN}_config
	mkdir -p ${SYSROOT_DESTDIR}${datadir}/${TARGET_SYS}_config_site.d
	cp ${BPN}_config ${SYSROOT_DESTDIR}${datadir}/${TARGET_SYS}_config_site.d

}

do_populate_sysroot[sstate-interceptfuncs] += "do_siteconfig "

EXPORT_FUNCTIONS do_siteconfig do_siteconfig_gencache