--- eix-0.25.3.ebuild
+++ eix-0.25.3.ebuild
@@ -22,6 +22,15 @@
 	app-arch/xz-utils
 	nls? ( sys-devel/gettext )"
 
+pkg_setup() {
+	if has_version "<${CATEGORY}/${PN}-0.25.3"; then
+	    local eixcache="${EROOT}"/var/cache/${PN}
+	    ebegin "Removing obsolete ${eixcache} to prevent file collision wrt bug #408249"
+	    [[ -f ${eixcache} ]] && rm -f "${eixcache}"
+	    eend $?
+	fi
+}
+
 src_configure() {
 	econf $(use_with sqlite) $(use_with doc extra-doc) \
 		$(use_with zsh-completion) \