[PHP-INSTALL] php_imap.c:1030: 'SET_QUOTA' undeclared (first use in this function)

[Ken Hada]

When I run the 'make' command I get the following errors-

php_imap.c:1030: 'SET_QUOTA' undeclared (first use in this function)
*** Error code 1
Stop in /usr/home/php-4.2.1/ext/imap.
*** Error code 1
Stop in /usr/home/php-4.2.1/ext/imap.
*** Error code 1
Stop in /usr/home/php-4.2.1/ext.
*** Error code 1
Stop in /usr/home/php-4.2.1.
*** Error code 1
I am trying to upgrade my PHP on a unix server.

thanks in advance,
Ken