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-rw-r--r--lisp/ChangeLog6
-rw-r--r--lisp/emacs-lisp/cl-macs.el12
2 files changed, 14 insertions, 4 deletions
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index a1cbe8d7914..390c816145a 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,9 @@
+2008-10-23 Glenn Morris <rgm@gnu.org>
+
+ * emacs-lisp/cl-macs.el (flet): Throw an error when trying to
+ byte-compile a redefinition of a function with special byte-compile
+ handling. (Bug#411)
+
2008-10-22 Vinicius Jose Latorre <viniciusjl@ig.com.br>
* ps-print.el: Deal with page sizes for label printes. Suggested by
diff --git a/lisp/emacs-lisp/cl-macs.el b/lisp/emacs-lisp/cl-macs.el
index 9ca675f08c4..08864962f08 100644
--- a/lisp/emacs-lisp/cl-macs.el
+++ b/lisp/emacs-lisp/cl-macs.el
@@ -1328,10 +1328,14 @@ go back to their previous definitions, or lack thereof).
(let ((func (list 'function*
(list 'lambda (cadr x)
(list* 'block (car x) (cddr x))))))
- (if (and (cl-compiling-file)
- (boundp 'byte-compile-function-environment))
- (push (cons (car x) (eval func))
- byte-compile-function-environment))
+ (when (cl-compiling-file)
+ ;; Bug#411. It would be nice to fix this.
+ (and (get (car x) 'byte-compile)
+ (error "Byte-compiling a redefinition of `%s' \
+will not work - use `labels' instead" (symbol-name (car x))))
+ (and (boundp 'byte-compile-function-environment)
+ (push (cons (car x) (eval func))
+ byte-compile-function-environment)))
(list (list 'symbol-function (list 'quote (car x))) func))))
bindings)
body))