PHP 4.3.1 Install problems..

Trying to get 4.3.x to compile.. 4.3.0 doesn't work either.. I can only get 4.2.3 to compile properly. Help would be appreciated. run configure with the following options: ./configure --with-mysql --with-xml --enable-track-vars --with-apxs=/usr/loc al/apache/bin/apxs --enable-versioning --enable-sysvsem --enable-sysvshm --e nable-sockets --with-gettext --with-imap --with-gd=/usr/local --with-jpeg-di r=/usr/local --with-png-dir=/usr/local --with-zlib-dir=/usr/local It doesn't report any errors.. run make and i get the following output: make /bin/sh libtool --silent --mode=compile gcc -Iext/zlib/ -I/root/php-4.3.1/ext/zlib/ -DPHP_ATOM_INC -I/root/php-4.3. 1/include -I/root/php-4.3.1/main -I/root/php-4.3.1 -I/root/php-4.3.1/Zend -I /usr/local/include -I/root/php-4.3.1/ext/xml/expat -DLINUX=22 -DUSE_HSREGEX -I/root/php-4.3.1/TSRM -g -O2 -prefer-pic -c /root/php-4.3.1/ext/zlib/zlib.c -o ext/zlib/zlib.lo In file included from /root/php-4.3.1/Zend/zend.h:59, from /root/php-4.3.1/main/php.h:34, from /root/php-4.3.1/ext/zlib/zlib.c:28: /usr/local/include/unix.h:182: parse error before `MAILSTREAM' /usr/local/include/unix.h:182: warning: no semicolon at end of struct or union /usr/local/include/unix.h:189: parse error before `}' /usr/local/include/unix.h:189: warning: data definition has no type or storage class ... ...