From 5fb83a0a33f8c30c83484b06d2e4d9d633c255cd Mon Sep 17 00:00:00 2001
From: Bob Ball <bob.ball@citrix.com>
Date: Tue, 29 Jul 2014 13:40:57 +0100
Subject: [PATCH] XenAPI: Fix declare definition

Some versions of bash do not initialise a variable with declare -a
therefore with set -u bash can terminate the script.

Be more verbose in declaring the array if it is not set

Change-Id: I6ec2b6e986aeffe539a2ab93432fa7af9e5a4f5d
---
 tools/xen/scripts/on_exit.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/xen/scripts/on_exit.sh b/tools/xen/scripts/on_exit.sh
index 2441e3d84a..2846dc42d0 100755
--- a/tools/xen/scripts/on_exit.sh
+++ b/tools/xen/scripts/on_exit.sh
@@ -3,7 +3,9 @@
 set -e
 set -o xtrace
 
-declare -a on_exit_hooks
+if [ -z "${on_exit_hooks:-}" ]; then
+    on_exit_hooks=()
+fi
 
 on_exit()
 {