PHP and mcrypt compilel woes

Hi, I'm having problems compiling PHP4.3.1 with mcrypt. With much effort, I have already compiled... mhash-0.8.17 mcrypt-2.6.3 libmcrypt-2.5.6 My configure line for PHP is. ./configure --with-apxs=/usr/local/apache/bin/apxs --with-mysql --with-mcryp t=/usr/local/bin The last few lines of the make output follows. Any suggestions would be greatfully appreciated. TIA ***************** /usr/home/wing/php-4.3.1/ext/mcrypt/mcrypt.c:304: `MCRYPT_SERPENT_128' undeclared (first use in this function) /usr/home/wing/php-4.3.1/ext/mcrypt/mcrypt.c:305: `MCRYPT_SERPENT_192' undeclared (first use in this function) /usr/home/wing/php-4.3.1/ext/mcrypt/mcrypt.c:306: `MCRYPT_SERPENT_256' undeclared (first use in this function) /usr/home/wing/php-4.3.1/ext/mcrypt/mcrypt.c:307: `MCRYPT_TWOFISH_128' undeclared (first use in this function) /usr/home/wing/php-4.3.1/ext/mcrypt/mcrypt.c:308: `MCRYPT_TWOFISH_192' undeclared (first use in this function) /usr/home/wing/php-4.3.1/ext/mcrypt/mcrypt.c:309: `MCRYPT_TWOFISH_256' undeclared (first use in this function) /usr/home/wing/php-4.3.1/ext/mcrypt/mcrypt.c:310: warning: passing arg 3 of `zend_register_long_constant' makes integer from pointer without a cast /usr/home/wing/php-4.3.1/ext/mcrypt/mcrypt.c: In function `zif_mcrypt_get_cipher_name': /usr/home/wing/php-4.3.1/ext/mcrypt/mcrypt.c:1503: warning: assignment makes pointer from integer without a cast *** Error code 1 **********************