From: shuhei <shuhei>
Date: Sun, 18 Mar 2001 12:24:33 +0000 (+0000)
Subject: Support for built-in `md5' of Emacs 21.
X-Git-Url: http://git.chise.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0fb9d117ae2dc182e0ddd1049f60d1e5f10317e4;p=elisp%2Fflim.git

Support for built-in `md5' of Emacs 21.
(md5-dl-module): Moved from md5-dl.el.
Use it for test whether to require 'md5-dl.
---

diff --git a/md5.el b/md5.el
index 168236e..8c4d7c0 100644
--- a/md5.el
+++ b/md5.el
@@ -49,15 +49,27 @@
 
 ;;; Code:
 
+(defvar md5-dl-module
+  (cond
+   ((and (fboundp 'md5)
+	 (subrp (symbol-function 'md5)))
+    nil)
+   ((fboundp 'dynamic-link)
+    ;; Should we take care of `dynamic-link-path'?
+    (let ((path (expand-file-name "md5.so" exec-directory)))
+      (if (file-exists-p path)
+	  path
+	nil)))
+   (t
+    nil)))
+
 (cond
  ((and (fboundp 'md5)
        (subrp (symbol-function 'md5)))
-  ;; recent XEmacs has `md5' as a built-in function.
-  ;; (and 'md5 is already provided.)
+  ;; do nothing.
   )
- ((and (fboundp 'dynamic-link)
-       (file-exists-p (expand-file-name "md5.so" exec-directory)))
-  ;; Emacs with DL patch.
+ ((and (stringp md5-dl-module)
+       (file-exists-p md5-dl-module))
   (require 'md5-dl))
  (t
   (require 'md5-el)))