Apache 1.3.26 with PHP 4.2

Hi, I configure my PHP perfectly. # ./configure --with-mysql=/usr/local/mysql --with-xml --with-apache=../apache_1.3.26 --enable-track-vars when I tried to configure with Apache, it still ok. # ./configure --activate-module=src/modules/php4/libmodphp4.a --enable-module=modphp4 --prefix=/usr/local/apache the problem starts when I try to make : <start> ===> src/modules/php4 gcc -c -I../../os/unix -I../../include -DLINUX=22 -DUSE_HSREGEX -DNO_DL_NEEDED ../../apaci mod_php4.c mod_php4.c:28:18: zend.h: No such file or directory mod_php4.c:29:17: php.h: No such file or directory mod_php4.c:30:27: php_variables.h: No such file or directory mod_php4.c:47:21: php_ini.h: No such file or directory mod_php4.c:48:25: php_globals.h: No such file or directory mod_php4.c:49:18: SAPI.h: No such file or directory mod_php4.c:50:22: php_main.h: No such file or directory mod_php4.c:52:26: zend_compile.h: No such file or directory mod_php4.c:53:26: zend_execute.h: No such file or directory mod_php4.c:54:28: zend_highlight.h: No such file or directory mod_php4.c:55:25: zend_indent.h: No such file or directory mod_php4.c:57:39: 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 `/usr/local/src/apache_1.3.26/src' make[1]: *** [build-std] Error 2 make[1]: Leaving directory `/usr/local/src/apache_1.3.26' make: *** [build] Error 2 <stop> Can anyone help me? Thank you. I'm using Linux 7.2, Apache 1.3.26 with PHP 4.20