From 1c13c24981b24d13a2677cff9b3747bc21d8f584 Mon Sep 17 00:00:00 2001
From: Richard Hansen <rhansen@rhansen.org>
Date: Thu, 4 Jun 2020 18:22:12 -0400
Subject: [PATCH] Fix misuse of define()

---
 ddclient | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/ddclient b/ddclient
index ca158ec..3edecbb 100755
--- a/ddclient
+++ b/ddclient
@@ -1291,9 +1291,11 @@ sub init_config {
     $opt{'quiet'} = 0 if opt('verbose');
 
     ## infer the IP strategy if possible
-    $opt{'use'} = 'ip'  if !define($opt{'use'}) && defined($opt{'ip'});
-    $opt{'use'} = 'if'  if !define($opt{'use'}) && defined($opt{'if'});
-    $opt{'use'} = 'web' if !define($opt{'use'}) && defined($opt{'web'});
+    if (!defined($opt{'use'})) {
+        $opt{'use'} = 'ip'  if defined($opt{'ip'});
+        $opt{'use'} = 'if'  if defined($opt{'if'});
+        $opt{'use'} = 'web' if defined($opt{'web'});
+    }
 
     ## sanity check
     $opt{'max-interval'}       = min(interval(opt('max-interval')), interval(default('max-interval')));