From 85825da48abac0bf3426f42dad5aa5a01c4d42c3 Mon Sep 17 00:00:00 2001
From: Michael Prokop <mika@grml.org>
Date: Mon, 3 Feb 2014 14:49:34 +0100
Subject: [PATCH] zshrc: check for DIRSTACK{SIZE,FILE} in chpwd()

If the environment variables are unset chpwd emmits an
error message, so check before using.

Thanks: Frank Terbeck <ft@grml.org> for review
---
 etc/zsh/zshrc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
index bd8ab85..1af7ed7 100644
--- a/etc/zsh/zshrc
+++ b/etc/zsh/zshrc
@@ -1556,6 +1556,7 @@ if [[ -f ${DIRSTACKFILE} ]] && [[ ${#dirstack[*]} -eq 0 ]] ; then
 fi
 
 chpwd() {
+    if (( $DIRSTACKSIZE <= 0 )) || [[ -z $DIRSTACKFILE ]]; then return; fi
     local -ax my_stack
     my_stack=( ${PWD} ${dirstack} )
     if is42 ; then
-- 
2.1.4