Description of problem:
bbdb fails with "invalid function (\' (let*..." in emacs-24 on fedora 17
whenever you look at a new message.
(I'm using mh-e.)
This error prevents bbbd from updating records from new messages.

Version-Release number of selected component (if applicable):
emacs-bbdb-2.35-6.fc17.noarch
with 
emacs-24.0.95-1.fc17.x86_64


How reproducible:
Every time.

Steps to Reproduce:
1. show mail in emacs (perhaps using mh-e)
2. scroll to new message
3. see error in emacs *Messasges*
  
Actual results:
The following backtrace appears when one does (setq debug-on-error t):


Debugger entered--Lisp error: (invalid-function (\` (let* ((attrs (file-attributes ((\, message)))) (status-time (nth 6 attrs)) (status-time-2 (cdr status-time)) (inode (nth 10 attrs))) (logxor (if (integerp inode) inode (car inode)) (car status-time) (if (integerp status-time-2) status-time-2 (car status-time-2))))))
  ((\` (let* ((attrs (file-attributes ((\, message)))) (status-time (nth 6 attrs)) (status-time-2 (cdr status-time)) (inode (nth 10 attrs))) (logxor (if (integerp inode) inode (car inode)) (car status-time) (if (integerp status-time-2) status-time-2 (car status-time-2))))))
  (lambda (message) "Return a (numeric) key for MESSAGE" ((\` (let* ((attrs (file-attributes (...))) (status-time (nth 6 attrs)) (status-time-2 (cdr status-time)) (inode (nth 10 attrs))) (logxor (if (integerp inode) inode (car inode)) (car status-time) (if (integerp status-time-2) status-time-2 (car status-time-2)))))))(buffer-file-name)
  (bbdb/mh-cache-key buffer-file-name)
  (let ((msg (bbdb/mh-cache-key buffer-file-name)) records record) (if (eq msg 0) (setq msg nil)) (setq records (bbdb-message-cache-lookup msg)) (if records (car records) (let ((from (bbdb/mh-get-field "^From[ 	]*:"))) (if (or (string= "" from) (string-match (bbdb-user-mail-names) (mail-strip-quoted-names from))) (progn (setq from (bbdb/mh-get-field "^To[ 	]*:")) (if (or (string= "" from) (string-match ... ...)) (setq from nil)))) (if from (setq record (bbdb-annotate-message-sender from t (or (bbdb-invoke-hook-for-value bbdb/mail-auto-create-p) offer-to-create) (or offer-to-create (bbdb-invoke-hook-for-value bbdb/mail-auto-create-p))))) (if (and msg record) (bbdb-encache-message msg (list record))) record)))
  (if bbdb-use-pop-up (bbdb/mh-pop-up-bbdb-buffer offer-to-create) (let ((msg (bbdb/mh-cache-key buffer-file-name)) records record) (if (eq msg 0) (setq msg nil)) (setq records (bbdb-message-cache-lookup msg)) (if records (car records) (let ((from (bbdb/mh-get-field "^From[ 	]*:"))) (if (or (string= "" from) (string-match (bbdb-user-mail-names) (mail-strip-quoted-names from))) (progn (setq from (bbdb/mh-get-field "^To[ 	]*:")) (if (or ... ...) (setq from nil)))) (if from (setq record (bbdb-annotate-message-sender from t (or ... offer-to-create) (or offer-to-create ...)))) (if (and msg record) (bbdb-encache-message msg (list record))) record))))
  (save-excursion (and mh-show-buffer (set-buffer mh-show-buffer)) (if bbdb-use-pop-up (bbdb/mh-pop-up-bbdb-buffer offer-to-create) (let ((msg (bbdb/mh-cache-key buffer-file-name)) records record) (if (eq msg 0) (setq msg nil)) (setq records (bbdb-message-cache-lookup msg)) (if records (car records) (let ((from (bbdb/mh-get-field "^From[ 	]*:"))) (if (or (string= "" from) (string-match ... ...)) (progn (setq from ...) (if ... ...))) (if from (setq record (bbdb-annotate-message-sender from t ... ...))) (if (and msg record) (bbdb-encache-message msg (list record))) record)))))
  bbdb/mh-update-record()
  run-hooks(mh-show-hook)
  mh-show-msg(nil)
  mh-show(nil)
  emh-show()
  call-interactively(emh-show nil nil)



Expected results:

No error.

Additional info:

Google reports a fix from NetBSD:
http://gnats.netbsd.org/44963

This patch seems to suppress the error in Fedora 17:

RCS file: misc/bbdb/patches/patch-ab
diff -N misc/bbdb/patches/patch-ab
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ misc/bbdb/patches/patch-ab	13 May 2011 13:43:06 -0000
@@ -0,0 +1,19 @@
+$NetBSD$
+
+To avoid being flagged by emacs-24.0.50
+ bbdb-mhe.el:56:41:Error: Invalid function: 
+ bbdb-mhe.el:38:30:Warning: `(\` (let* ((attrs (file-attributes ((\,
+	..... (ommitted)
+     status-time-2)))))' is a malformed function
+
+--- work/bbdb-2.34/lisp/bbdb-mhe.el.orig	2011-04-02 20:42:13.000000000 +0900
++++ lisp/bbdb-mhe.el	2011-04-02 20:42:28.000000000 +0900
+@@ -37,7 +37,7 @@
+ 
+ (defmacro bbdb/mh-cache-key (message)
+   "Return a (numeric) key for MESSAGE"
+-  (`(let* ((attrs (file-attributes (, message)))
++  ( ` (let* ((attrs (file-attributes (, message)))
+            (status-time (nth 6 attrs))
+            (status-time-2 (cdr status-time))
+