Bugzilla Bug 130659

<snip>
if ! use firefox; then
                local moz_use="$(</var/db/pkg/`best_version
www-client/mozilla`/USE)"
                if ! has_version '>=www-client/mozilla-1.7.3-r2' && ! has gtk2
${moz_use}
                then
                        echo
                        eerror
                        eerror "This needs mozilla used gtk2."
                        eerror "To build mozilla use gtk2, please type
following command:"
                        eerror
                        eerror "    # USE=\"gtk2\" emerge mozilla"
                        eerror
                        die
                fi
        fi
}
</snip>

That's what built_with_use from eutils.eclass is for. Besides, the above isn't
${ROOT} aware, so it can fail.

Uhm, and the grammar needs some make-up as well... ;) Like:

eerror "This ebuild needs mozilla built with USE=???."
eerror "To rebuild mozilla with USE=???, please type the following command:"
eerror
eerror "    # USE=\"???\" emerge mozilla"

And - worst of all, there's no gtk2 use flag in mozilla ebuilds, so this check
will always fails.

ping - 2 months

since kazehakase-0.3.9, I removed built_with_use from ebuild. 
and I think remove kazehakase-cvs from portage tree.

0.3.9 stable now. Removed old versions.

*** Bug 150089 has been marked as a duplicate of this bug. ***