Call-time pass-by-ref. error

Following error popped up after upgrading from b2->wordpress. If you need any phpinfo() information, let me know, as it might be my host’s install. Seems to work fine if I remove the ampersands from the call to stripslashes on lines 977 & 979.
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 stripslashes(). 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 /home/www/geistvox/b2-include/b2template.functions.php on line 977