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+;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
+;;;;
+;;;; Name: db2-loader.lisp
+;;;; Purpose: Foreign library loader for CLSQL Db2 interface
+;;;;
+;;;; 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-db2)
+
+(defparameter *db2-lib-path*
+ (let ((db2-home (getenv "DB2_HOME")))
+ (when db2-home
+ (make-pathname :directory
+ (append
+ (pathname-directory
+ (parse-namestring (concatenate 'string db2-home "/")))
+ (list "lib"))))))
+
+(defparameter *db2-library-filenames*
+ (if *db2-lib-path*
+ (list (merge-pathnames "libdb2" *db2-lib-path*)
+ "libdb2")
+ "libdb2"))
+
+(defvar *db2-supporting-libraries* '("c")
+ "Used only by CMU. List of library flags needed to be passed to ld to
+load the Db2 client library succesfully. If this differs at your site,
+set to the right path before compiling or loading the system.")
+
+(defvar *db2-library-loaded* nil
+ "T if foreign library was able to be loaded successfully")
+
+(defmethod clsql-sys:database-type-library-loaded ((database-type (eql :db2)))
+ *db2-library-loaded*)
+
+(defmethod clsql-sys:database-type-load-foreign ((database-type (eql :db2)))
+ (clsql-uffi:find-and-load-foreign-library *db2-library-filenames*
+ :module "clsql-db2"
+ :supporting-libraries
+ *db2-supporting-libraries*)
+ (setq *db2-library-loaded* t))
+
+(clsql-sys:database-type-load-foreign :db2)
+
+