Installation problems

Hallo. I am trying to install PHP 4.3.0 and HTTPD 2.0.44 and MySQL 3.23.55. My configuration options for PHP are: ./configure --prefix=/mnt/lfs/userv/php --with-apxs2=/mnt/lfs/userv/apache2/bin/axps --enable-calendar --enable-ftp --with-mysql=/mnt/lfs/userv/mysql/ MySQL and HTTPD are happily installed and only PHP is left. When I'm trying to compile PHP I get: /bin/sh libtool --silent --mode=compile gcc -Isapi/apache2filter/ -I/tmp/php-4.3.0/sapi/apache2filter/ -DPHP_ATOM_INC -I/tmp/php-4.3.0/include -I/tmp/php-4.3.0/main -I/tmp/php-4.3.0 -I/mnt/lfs/userv/apache2//include -I/tmp/php-4.3.0/Zend -I/mnt/lfs/userv/mysql//include/mysql -I/tmp/php-4.3.0/ext/xml/expat -I/tmp/php-4.3.0/TSRM -g -O2 -prefer-pic -c /tmp/php-4.3.0/sapi/apache2filter/sapi_apache2.c -o sapi/apache2filter/sapi_apache2.lo In file included from /mnt/lfs/userv/apache2/include/http_protocol.h:64, from /tmp/php-4.3.0/sapi/apache2filter/sapi_apache2.c:41: /mnt/lfs/userv/apache2/include/apr_portable.h:434: parse error before `*' make: *** [sapi/apache2filter/sapi_apache2.lo] Error 1 Why? What can I do to solve the problem?