PHP3 and Oracle 8.1.6

I am trying to install and configure PHP3 with Oracle 8.1.6 and am receiving the following error when I run $ make In file included from functions/php3_oci8.h:53, from internal_functions.c:53: /stuff/oracle/product/8.1.6/rdbms/demo/oci.h:1659: ociextp.h: No such file or directory make: *** [internal_functions.o] Error 1 [bob@rojo /php-3.0.16]# I verified that the file is not there. Here is how I configured php3: ./configure --with-apxs=/usr/local/apache/bin/apxs --with-config-file-path=/etc/httpd --with-oracle=/stuff/oracle/product/8.1.6 Any suggestions or ideas as to what might be wrong? Is it possible to run 8.1.6 with PHP3? or do I need PHP4? I am using RedHat 6.0 Thanks, Bob K