Remove old windows .dll files from source

[clsql.git] / uffi / clsql-uffi-loader.lisp

diff --git a/uffi/clsql-uffi-loader.lisp b/uffi/clsql-uffi-loader.lisp
index 8b9efb7207601f7c490d0898d73e7dba28125945..8b12cc8e9163321a036dbd9300bb50536575060c 100644 (file)
--- a/uffi/clsql-uffi-loader.lisp
+++ b/uffi/clsql-uffi-loader.lisp
@@ -7,9 +7,7 @@
 ;;;; Author:   Kevin M. Rosenberg
 ;;;; Created:  Mar 2002
 ;;;;
-;;;; $Id$
-;;;;
-;;;; This file, part of CLSQL, is Copyright (c) 2002-2004 by Kevin M. Rosenberg
+;;;; This file, part of CLSQL, is Copyright (c) 2002-2010 by Kevin M. Rosenberg
 ;;;;
 ;;;; CLSQL users are granted the rights to distribute and use this software
 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
@@ -18,31 +16,37 @@
 
 (in-package #:clsql-uffi)
 
-(defvar *clsql-uffi-library-filename* 
-  (uffi:find-foreign-library
-   '(#+(or 64bit x86-64) "uffi64" "uffi")
-   `(,clsql-uffi-system::*library-file-dir*
-     "/usr/lib/clsql/")
-   :drive-letters '("C")))
+(defun find-and-load-foreign-library (filenames &key module supporting-libraries (errorp t))
+  "Attempt to load a foreign library. This will search for any of the filenames, as
+well as any of the filenames in any of the clsql:*foreign-library-search-paths*"
+  (setq filenames (if (listp filenames) filenames (list filenames)))
+
+  (flet ((try-load (testpath)
+           (handler-case
+               (uffi:load-foreign-library testpath
+                                          :module module
+                                          :supporting-libraries supporting-libraries)
+             (error nil)))) ;(c) (warn "~A" c) nil))))
+    (or
+     (loop for type in (uffi:foreign-library-types)
+           thereis
+           (loop for name in filenames
+                 for pn = (make-pathname :name name :type type)
+                 thereis (or
+                          (try-load pn)
+                          (loop for search-path in clsql:*foreign-library-search-paths*
+                                thereis (try-load (merge-pathnames pn search-path))))))
+     (when errorp
+       (error "Couldn't load foreign librar~@P ~{~S~^, ~}. (searched ~S: ~S)"
+              (length filenames) filenames
+              'clsql:*foreign-library-search-paths* clsql:*foreign-library-search-paths*)))))
+
+;; searches clsql_uffi64 to accomodate both 32-bit and 64-bit libraries on same system
+(defvar *clsql-uffi-library-filenames*
+  `(,@(when (> most-positive-fixnum (expt 2 32)) (list "clsql_uffi64"))
+    "clsql_uffi"))
 
 (defvar *clsql-uffi-supporting-libraries* '("c")
   "Used only by CMU. List of library flags needed to be passed to ld to
 load the MySQL client library succesfully.  If this differs at your site,
 set to the right path before compiling or loading the system.")
-
-(defvar *uffi-library-loaded* nil
-  "T if foreign library was able to be loaded successfully")
-
-(defun load-uffi-foreign-library ()
-  (unless (probe-file *clsql-uffi-library-filename*)
-    (error "Unable to find uffi.so"))
-  
-  (if (uffi:load-foreign-library *clsql-uffi-library-filename* 
-                                :module "clsql-uffi" 
-                                :supporting-libraries 
-                                *clsql-uffi-supporting-libraries*)
-      (setq *uffi-library-loaded* t)
-    (error "Unable to load helper library ~A" *clsql-uffi-library-filename*)))
-
-(load-uffi-foreign-library)
-