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-rw-r--r--lisp/emacs-lisp/bytecomp.el13
1 files changed, 13 insertions, 0 deletions
diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el
index 1094b1b8cb1..0dd0ead9d61 100644
--- a/lisp/emacs-lisp/bytecomp.el
+++ b/lisp/emacs-lisp/bytecomp.el
@@ -3792,6 +3792,19 @@ that suppresses all warnings during execution of BODY."
(defun byte-compile-no-warnings (form)
(let (byte-compile-warnings)
(byte-compile-form (cons 'progn (cdr form)))))
+
+;; Warn about misuses of make-variable-buffer-local.
+(byte-defop-compiler-1 make-variable-buffer-local byte-compile-make-variable-buffer-local)
+(defun byte-compile-make-variable-buffer-local (form)
+ (if (eq (car-safe (car-safe (cdr-safe form))) 'quote)
+ (byte-compile-warn
+ "`make-variable-buffer-local' should be called at toplevel"))
+ (byte-compile-normal-call form))
+(put 'make-variable-buffer-local
+ 'byte-hunk-handler 'byte-compile-form-make-variable-buffer-local)
+(defun byte-compile-form-make-variable-buffer-local (form)
+ (byte-compile-keep-pending form 'byte-compile-normal-call))
+
;;; tags