X-Git-Url: http://git.kpe.io/?p=clsql.git;a=blobdiff_plain;f=uffi%2Fclsql-uffi-loader.lisp;h=2705f554ee88a746ec35b3855feb578e3aa8bd63;hp=53069884df2519222fe042bdb930744132574c44;hb=1b07d2fd927cf8f1943ac0a0b8c980d1dc707076;hpb=e7d3c396e803dc0dcc5acb773de5c872568c66e3

diff --git a/uffi/clsql-uffi-loader.lisp b/uffi/clsql-uffi-loader.lisp
index 5306988..2705f55 100644
--- a/uffi/clsql-uffi-loader.lisp
+++ b/uffi/clsql-uffi-loader.lisp
@@ -18,12 +18,35 @@
 
 (in-package #:clsql-uffi)
 
-(defvar *clsql-uffi-library-filename* 
-  (uffi:find-foreign-library
-   '(#+64bit "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)"
+	      (length filenames) filenames
+	      '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
@@ -34,15 +57,11 @@ set to the right path before compiling or loading the system.")
   "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*)))
+  (clsql:push-library-path clsql-uffi-system::*clsql-uffi-library-dir*)
+  (find-and-load-foreign-library *clsql-uffi-library-filenames*
+                                 :module "clsql-uffi"
+                                 :supporting-libraries
+                                 *clsql-uffi-supporting-libraries*)
+  (setq *uffi-library-loaded* t))
 
 (load-uffi-foreign-library)
-