+;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
+;;;;
+;;;; Name: oracle-loader.lisp
+;;;; Purpose: Foreign library loader for CLSQL Oracle interface
+;;;;
+;;;; $Id$
+;;;;
+;;;; This file is part of CLSQL.
+;;;;
+;;;; CLSQL users are granted the rights to distribute and use this software
+;;;; as governed by the terms of the Lisp Lesser GNU Public License
+;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
+;;;; *************************************************************************
+
+(in-package #:clsql-oracle)
+
+(defparameter *oracle-lib-path*
+ (let ((oracle-home (getenv "ORACLE_HOME")))
+ (when oracle-home
+ (make-pathname :directory
+ (append
+ (pathname-directory
+ (parse-namestring (concatenate 'string oracle-home "/")))
+ (list "lib"))))))
+
+(defparameter *oracle-client-library-path*
+ (uffi:find-foreign-library
+ "libclntsh"
+ `(,@(when *load-truename* (list (make-pathname :directory (pathname-directory *load-truename*))))
+ ,@(when *oracle-lib-path* (list *oracle-lib-path*))
+ "/usr/lib/oracle/10.1.0.2/client/lib/")
+ :drive-letters '("C")))
+
+(defvar *oracle-supporting-libraries* '("c")
+ "Used only by CMU. List of library flags needed to be passed to ld to
+load the Oracle client library succesfully. If this differs at your site,
+set to the right path before compiling or loading the system.")
+
+(defvar *oracle-library-loaded* nil
+ "T if foreign library was able to be loaded successfully")
+
+(defmethod clsql-sys:database-type-library-loaded ((database-type (eql :oracle)))
+ *oracle-library-loaded*)
+
+(defmethod clsql-sys:database-type-load-foreign ((database-type (eql :oracle)))
+ (if (pathnamep *oracle-client-library-path*)
+ (progn
+ (uffi:load-foreign-library *oracle-client-library-path*
+ :module "clsql-oracle"
+ :supporting-libraries
+ *oracle-supporting-libraries*)
+ (setq *oracle-library-loaded* t))
+ (warn "Unable to load oracle client library.")))
+
+(clsql-sys:database-type-load-foreign :oracle)