Snort 2.0.2 and Oracle DB

["Runion, Matthew D" <mrunion () ou edu>]

This is my virgin post, so be gentle...

I'm setting up Snort 2.0.2 on Red Hat Linux 9 to use a non-local Oracle
8.1.6 database.  I've got the database setup by running the
create_oracle.sql script and it's ready to roll.

The issue I'm having is on the Snort box itself.  I understand that you have
to run ./configure --with oracle=DIR

I'm a newbie to Linux, but I assume DIR is the path to some sort of Oracle
header files, rather than the actual Oracle database itself.  My questions
are:

1) What files are necessary on Linux 9 to make it work?

2) Where to I get those files?