From d1f99abf75bbb6df520f48a45b954d24eb5c42c7 Mon Sep 17 00:00:00 2001
From: Michael Stapelberg <michael@stapelberg.de>
Date: Mon, 16 Mar 2015 22:38:39 +0100
Subject: [PATCH] fix warnings when CONTINUOUS_INTEGRATION env var is unset

---
 testcases/lib/StatusLine.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/testcases/lib/StatusLine.pm b/testcases/lib/StatusLine.pm
index 379fd3d6..f2487797 100644
--- a/testcases/lib/StatusLine.pm
+++ b/testcases/lib/StatusLine.pm
@@ -19,7 +19,9 @@ sub noninteractive {
     # CONTINUOUS_INTEGRATION gets set when running under Travis, see
     # http://docs.travis-ci.com/user/ci-environment/ and
     # https://github.com/travis-ci/travis-ci/issues/1337
-    return (! -t STDOUT) || $ENV{CONTINUOUS_INTEGRATION} eq 'true';
+    return (! -t STDOUT) || (
+        defined($ENV{CONTINUOUS_INTEGRATION}) &&
+        $ENV{CONTINUOUS_INTEGRATION} eq 'true');
 }
 
 # setup %ansi_line_upwards to map all working displays to the