While emerging Zenity: WARN: unpack QA Notice: ${WANT_AUTOCONF} variable unset. Please report on http://bugs.gentoo.org/ QA Notice: ${WANT_AUTOMAKE} variable unset. Please report on http://bugs.gentoo.org/
we've taken the route of defaulting to latest in the eclass: http://sources.gentoo.org/viewcvs.py/gentoo-x86/eclass/autotools.eclass?r1=1.62&r2=1.63