# this also isn't the fastest, but I welcome an alternative method
envvar)
COMPREPLY=($(compgen -W "$(env -i emerge -v --info | \
COMPREPLY=($(compgen -W "$(env -i PATH="${PATH}" emerge -v --info | \
sed -n -e '/^[[:upper:]].*=".*"/s/^\(.*\)=".*$/\1/p')" -- ${cur}))
;;
-