PHP4 & Apache compile error

I'm running the newest Apache on FreeBSD 3.2. When trying to build Apache with PHP4 as a module, I get the following error well into the Apache build process: gcc -funsigned-char -I/usr/local/src/php4 -I/usr/local/src/php4/libzend -I/usr/local/src/php4/libzend -I/usr/local/src/php4 -DUSE_HSREGEX ./apaci -o httpd buildmark.o modules.o modules/standard/libstandard.a modules/php4/libphp4.a main/libmain.a ../os/unix/libos.a ap/libap.a regex/libregex.a -Lmodules/php4 -L../modules/php4 -L../../modules/php4 -lmodphp4 -L/usr/local/src/php4/ext/pcre/pcrelib -lpcre -L/usr/local/src/php4/regex -lregex -L/usr/local/lib/mysql -lmysqlclient -lpam -lm -lcrypt -rdynamic -lcrypt modules/php4/libphp4.a(internal_functions.o): In function `module_startup_modules': /usr/local/src/php4/internal_functions.c(.data+0x50): undefined reference to `apache_module_entry' *** Error code 1 Is this something simple I'm missing, or are others experiencing this? Let me know if there is any information I can provide to help diagnose this...