zif_imap_getquota

Someone knows what it is? I have a Linux 6.2 with kernel 2.2.14-5.0. I have installed IMAP-2001a and PHP 4.2.2 I configured PHP like this: ./configure --with-mysql --with-apxs=/usr/local/apache/bin/apxs --with-gettext --with-xml --with-mcrypt=/usr/local --with-imap --with-kerberos when I restart the Apache 1.3.26, it doesn´t work. The error is: " Cannot load /usr/local/apache/libexec/libphp4.so into server: /usr/local/apache/libexec/libphp4.so: undefined symbol: zif_imap_setquota" The problem is that zif_imap_setquota doesn´t exists in any file!! TIA Ana Paula