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[elisp/lemi.git] / mail / hmac-sha1.el

diff --git a/mail/hmac-sha1.el b/mail/hmac-sha1.el
index 00fe338..70b665f 100644 (file)
--- a/mail/hmac-sha1.el
+++ b/mail/hmac-sha1.el
@@ -65,14 +65,21 @@
 
 (eval-when-compile (require 'hmac-def))
 (require 'hex-util)                    ; (decode-hex-string STRING)
-(require 'sha1)                                ; expects (sha1-binary STRING)
+(require 'sha1)                                ; expects (sha1 STRING)
 
-;;; (defun sha1-binary (string)
-;;;   "Return the SHA1 of STRING in binary form."
-;;;   (decode-hex-string (sha1 string)))
+;; To share *.elc files between Emacs w/ and w/o DL patch,
+;; this check must be done at load-time.
+(cond
+ ((fboundp 'sha1-binary)
+  ;; do nothing.
+  )
+ (t
+  (defun sha1-binary (string)
+    "Return the SHA1 of STRING in binary form."
+    (decode-hex-string (sha1 string)))))
 
 (define-hmac-function hmac-sha1 sha1-binary 64 20) ; => (hmac-sha1 TEXT KEY)
-;; (define-hmac-function hmac-sha1-96 sha1-binary 64 20 96)
+(define-hmac-function hmac-sha1-96 sha1-binary 64 20 96)
 
 (provide 'hmac-sha1)