Problem installing PHP on Redhat 7.1

Greetings: I am trying to install php on my Redhat 7.1 box, but when I run the configure script: ./configure --with-mysql=../mysql --with-apxs=/www/apache/bin/apxs --with-zl ib=/usr/lib I get this warning: checking for crypt in -lcrypt... yes Configuring extensions checking if the location of ZLIB install directory is defined... no checking whether to include ZLIB support... yes configure: error: Cannot find libz Which, will still let php compile, but it will screw up apache when it tries to load the php module, as shown here: # ./bin/apachectl start Syntax error on line 205 of /www/apache/conf/httpd.conf: Cannot load /web/apache/libexec/libphp4.so into server: /web/apache/libexec/libphp4.so: undefined symbol: uncompress ./bin/apachectl start: httpd could not be started This is the stuff I have installed: zlib-1.1.3-22 (rpm, from install) apache_1.3.22 (I installed this by hand) php-4.0.6 (this is the version I am trying to install) Do I have to reinstall ZLIB? If so, what do I do about this: # rpm -e zlib error: removing these packages would break dependencies: zlib is needed by cvs-1.11-3 libz.so.1 is needed by gnupg-1.0.4-11 libz.so.1 is needed by lynx-2.8.4-9 libz.so.1 is needed by python-1.5.2-30 libz.so.1 is needed by rpm-4.0.2-8 libz.so.1 is needed by rpm-python-4.0.2-8 libz.so.1 is needed by util-linux-2.10s-12 libz.so.1 is needed by openssh-2.5.2p2-5 libz.so.1 is needed by openssh-clients-2.5.2p2-5 libz.so.1 is needed by openssh-server-2.5.2p2-5 libz.so.1 is needed by cvs-1.11-3 libz.so.1 is needed by rpm-build-4.0.2-8 Can I somehow force-remove it and then just compile zlib myself and everything will be happy, or what? Any help would be greatly appreciated. -- Matt Orlando