From 18e46962c2c26c676b31a26f196f078aa26b0a3d Mon Sep 17 00:00:00 2001
From: neil <github@byneil.com>
Date: Thu, 22 Sep 2016 13:15:25 +0800
Subject: [PATCH] fix https://github.com/Neilpang/acme.sh/issues/297

---
 acme.sh | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/acme.sh b/acme.sh
index b9f69bc9..91557b8d 100755
--- a/acme.sh
+++ b/acme.sh
@@ -1244,12 +1244,20 @@ _starttlsserver() {
   _debug serverproc $serverproc
 }
 
+#file
+_readlink() {
+  _rf="$1"
+  if ! readlink -f "$_rf" 2>/dev/null; then
+    readlink  "$_rf"
+  fi
+}
+
 __initHome() {
   if [ -z "$_SCRIPT_HOME" ] ; then
     if _exists readlink && _exists dirname ; then
       _debug "Lets guess script dir."
       _debug "_SCRIPT_" "$_SCRIPT_"
-      _script="$(readlink -f "$_SCRIPT_")"
+      _script="$(_readlink "$_SCRIPT_")"
       _debug "_script" "$_script"
       _script_home="$(dirname "$_script")"
       _debug "_script_home" "$_script_home"