Call-time pass-by-reference error

PHP 5.1.2 complaints about the following:

"PHP Warning: Call-time pass-by-reference has been deprecated - argument passed by value; If you would like to pass it by reference, modify the declaration of links_save_links_for_node(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file. However, future versions may not support this any longer. in /.../modules/links/links_related.module on line 745"