From b6e9e1f4bd3161d6d4879784c2de2c103aa8f3ae Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kitenet.net>
Date: Sun, 10 Nov 2013 11:54:09 -0400
Subject: guard unsets

Apparently fails with netbsd's shell. Unsure if that shell is POSIX.
---
 etckeeper | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/etckeeper b/etckeeper
index cb180b6..1498b96 100755
--- a/etckeeper
+++ b/etckeeper
@@ -16,8 +16,12 @@ if [ -e $conf ]; then
 	. $conf
 fi
 
-unset GIT_WORK_TREE
-unset GIT_DIR
+if [ -n "$GIT_WORK_TREE" ]; then
+	unset GIT_WORK_TREE
+fi
+if [ -n "$GIT_DIR" ]; then
+	unset GIT_DIR
+fi
 
 program_directory="${0%/*}"
 if [ -n "$program_directory" ]; then
-- 
cgit v1.2.3