@@ -38,10 +38,13 @@
 
 /**
  * \brief A protocol that needs to be implemented by delegates for OFXMLParser.
  */
 @protocol OFXMLParserDelegate
+#ifdef OF_HAVE_OPTIONAL_PROTOCOLS
+@optional
+#endif
 /**
  * This callback is called when the XML parser found processing instructions.
  *
  * \param parser The parser which found processing instructions
  * \param pi The processing instructions