PHP error with version 265

I just started getting this today with the latest SVN (265)

[Mon Jun 26 09:38:37 2006] [error] [client xxx.xxx.xxx.xxx] PHP Warning: Call-time pass-by-r eference has been deprecated - argument passed by value; If you would like to pass it by reference, modify the declaration of runtime function name. 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 /usr/local/www/data-dist/roundcubemail-svn/program/include/main.inc on line 47

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