Problem installing PHP 4.3.1 on Tru64 5.1a

I am trying to install the latest version of PHP on Tru64 5.1a configure is run with the following flags: --with-apache=/apache/apache_1.3.26 --with-curl=/usr/local --with-mysql=/usr/local --with-zlib=/usr/local --enable-calendar --with-gd I get the following response from running make: # make /usr/local/bin/gcc -Imain/ -I/apache/php-4.3.1/main/ -DPHP_ATOM_INC -I/apache/php-4.3.1/include -I/apache/php-4.3.1/main -I/apache/php-4.3.1 -I/apache/php-4.3.1/Zend -I/usr/local/include -I/usr/local/include/mysql -I/apache/php-4.3.1/ext/xml/expat -I/usr/local/include -I/apache/php-4.3.1/TSRM -g -O2 -c /apache/php-4.3.1/main/streams.c -o main/streams.o && echo > main/streams.lo /apache/php-4.3.1/main/streams.c: In function `_php_stream_stat': /apache/php-4.3.1/main/streams.c:677: structure has no member named `_F64_stat' /apache/php-4.3.1/main/streams.c: In function `php_stdiop_cast': /apache/php-4.3.1/main/streams.c:1512: warning: cast to pointer from integer of different size *** Exit 1 Stop. Which kind of leaves me up against a brick wall... I don't know where the stat structure is defined so I have had a hard time confiming that there is no _F64_stat member. I am assuming it has something to do with the Alpha's 64-bit arch. and the new way PHP is handling file streams. My previous version is 4.2.2. Anyway, any advice would be appreciated Thanks, Jason