From db61528748fa53befc916ab81b1286ec40eb5c73 Mon Sep 17 00:00:00 2001
From: Thomas Gelf <thomas@gelf.net>
Date: Mon, 21 Nov 2016 22:44:31 +0100
Subject: [PATCH] CustomVariable: fix issues with PHP bug #43200

fixes #13271
---
 library/Director/CustomVariable/CustomVariable.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/library/Director/CustomVariable/CustomVariable.php b/library/Director/CustomVariable/CustomVariable.php
index 242ae3d0..d78fcb75 100644
--- a/library/Director/CustomVariable/CustomVariable.php
+++ b/library/Director/CustomVariable/CustomVariable.php
@@ -82,7 +82,14 @@ abstract class CustomVariable implements IcingaConfigRenderer
 
     abstract public function getValue();
 
-    abstract public function toConfigString($renderExpressions = false);
+    public function toConfigString($renderExpressions = false)
+    {
+        // TODO: this should be an abstract method once we deprecate PHP < 5.3.9
+        throw new ProgrammingError(
+            '%s has no toConfigString() implementation',
+            get_class($this)
+        );
+    }
 
     public function isNew()
     {