From f47ebc4b1cb3795666eca992b903c4c2c9bbcc25 Mon Sep 17 00:00:00 2001
From: Aaron Gyes <me@aaron.gy>
Date: Mon, 28 Nov 2016 12:40:55 -0800
Subject: [PATCH] builtin cd: Handle unset HOME.

---
 src/builtin.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/builtin.cpp b/src/builtin.cpp
index 91c560114..3f1dccbf0 100644
--- a/src/builtin.cpp
+++ b/src/builtin.cpp
@@ -2461,7 +2461,10 @@ static int builtin_cd(parser_t &parser, io_streams_t &streams, wchar_t **argv) {
     }
 
     if (!got_cd_path) {
-        if (errno == ENOTDIR) {
+        if (dir_in.missing_or_empty()) { 
+            streams.err.append_format(_(L"%ls: $HOME not set\n"), argv[0]);
+        }
+        else if (errno == ENOTDIR) {
             streams.err.append_format(_(L"%ls: '%ls' is not a directory\n"), argv[0],
                                       dir_in.c_str());
         } else if (errno == ENOENT) {