steev@sigma ~ % emerge --info -v|grep ELOG
PORTAGE_ELOG_CLASSES="warn error log"
PORTAGE_ELOG_MAILFROM="portage"
PORTAGE_ELOG_MAILSUBJECT="[portage] ebuild log for ${PACKAGE} on ${HOST}"
PORTAGE_ELOG_MAILURI="root"
PORTAGE_ELOG_SYSTEM="save"