X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/timetracker.git/blobdiff_plain/e40a312eb20155b967a0ffdd1b3f6b36398a5944..6079edfe4444d2d0bc2f220f8823d6fcc57f2dd5:/WEB-INF/lib/common.lib.php

diff --git a/WEB-INF/lib/common.lib.php b/WEB-INF/lib/common.lib.php
index f483b3d4..6526d730 100644
--- a/WEB-INF/lib/common.lib.php
+++ b/WEB-INF/lib/common.lib.php
@@ -165,7 +165,7 @@ function check_extension($ext)
 // isTrue is a helper function to return correct false for older config.php values defined as a string 'false'.
 function isTrue($val)
 {
-  return ($val === true);
+  return (defined($val) && constant($val) === true);
 }
 
 // ttValidString is used to check user input to validate a string.