Errors when compiling Apache

I have tried to install Apache 1.3.11/PHP4 ORC1/MySQL 3.22.32. I installed MySQL via rpms, and then followed the directions in the INSTALL file from the PHP4 tarball. # tar -zxvf apache_1.3.11.tar.gz # tar -zxvf php-4.0RC1.tar.gz # cd apache_1.3.11 # ./configure # cd ../php-4.0RC1 # ./configure --with-mysql --with-apache=../apache_1.3.11 --enable-track-vars # make # make install # cd ../apache_1.3.11 # ./configure --prefix=/home/httpd --activate-module=src/modules/php4/libphp4.a # make When i do this, i get errors: ===> src/modules/php4 gcc -c -I../../os/unix -I../../include -DLINUX=2 -DUSE_HSREGEX -DUSE_EXPAT -I../../lib/expat-lite -DNO_DL_NEEDED ../../apaci mod_php4.c mod_php4.c:24: zend.h: No such file or directory mod_php4.c:25: php.h: No such file or directory mod_php4.c:26: php_variables.h: No such file or directory mod_php4.c:27: SAPI.h: No such file or directory mod_php4.c:44: php_ini.h: No such file or directory mod_php4.c:45: php_globals.h: No such file or directory mod_php4.c:46: SAPI.h: No such file or directory mod_php4.c:47: main.h: No such file or directory mod_php4.c:49: zend_compile.h: No such file or directory mod_php4.c:50: zend_execute.h: No such file or directory mod_php4.c:51: zend_highlight.h: No such file or directory mod_php4.c:52: zend_indent.h: No such file or directory mod_php4.c:54: ext/standard/php_standard.h: No such file or directory make[4]: *** [mod_php4.o] Error 1 make[3]: *** [all] Error 1 make[2]: *** [subdirs] Error 1 make[2]: Leaving directory `/root/apache_1.3.11/src' make[1]: *** [build-std] Error 2 make[1]: Leaving directory `/root/apache_1.3.11' make: *** [build] Error 2 Can anyone help? Stephen