--- /usr/portage/eclass/subversion.eclass	2013-07-27 04:31:17.000000000 -0600
+++ subversion.eclass	2013-09-20 20:06:23.740048739 -0600
@@ -443,9 +443,10 @@
 # want the logs to stick around if packages are uninstalled without messing with
 # config protection.
 subversion_pkg_preinst() {
+	has "${EAPI:-0}" 0 1 2 && ! use prefix && EROOT="${ROOT}"
 	local pkgdate=$(date "+%Y%m%d %H:%M:%S")
 	if [[ -n ${ESCM_LOGDIR} ]]; then
-		local dir="${ROOT}/${ESCM_LOGDIR}/${CATEGORY}"
+		local dir="${EROOT}/${ESCM_LOGDIR}/${CATEGORY}"
 		if [[ ! -d ${dir} ]]; then
 			mkdir -p "${dir}" || eerror "Failed to create '${dir}' for logging svn revision"
 		fi