Index: trunk/core/kernel/globals.php
===================================================================
diff -u -N -r3210 -r3216
--- trunk/core/kernel/globals.php	(.../globals.php)	(revision 3210)
+++ trunk/core/kernel/globals.php	(.../globals.php)	(revision 3216)
@@ -46,7 +46,7 @@
 		 */
 		function print_pre($data, $label='')
 		{
-			if( defined('DEBUG_MODE') && DEBUG_MODE )
+			if( constOn('DEBUG_MODE') )
 			{
 				global $debugger;
 				if($label) $debugger->appendHTML('<b>'.$label.'</b>');
@@ -186,7 +186,7 @@
 {
 	function k4_include_once($file)
 	{
-		if ( defined('DEBUG_MODE') && DEBUG_MODE && defined('DBG_PROFILE_INCLUDES') && DBG_PROFILE_INCLUDES )
+		if ( constOn('DEBUG_MODE') && isset($debugger) && constOn('DBG_PROFILE_INCLUDES') )
 		{
 
 			if ( in_array($file, get_required_files()) ) return;
@@ -369,14 +369,17 @@
 		return $result;
 	}
 	
-	/**
-	 * Checks if constant is defined and has positive value
-	 *
-	 * @param string $const_name
-	 * @return bool
-	 */
-	function constOn($const_name)
+	if( !function_exists('constOn') )
 	{
-		return defined($const_name) && constant($const_name);
+		/**
+		 * Checks if constant is defined and has positive value
+		 *
+		 * @param string $const_name
+		 * @return bool
+		 */
+		function constOn($const_name)
+		{
+			return defined($const_name) && constant($const_name);
+		}
 	}
 ?>
\ No newline at end of file