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Problem when run-hook-with-args with closure


From: Zhongwei Yao
Subject: Problem when run-hook-with-args with closure
Date: Thu, 18 Dec 2014 14:57:23 +0800

Hi, list,
I try following code on both emacs 24.4.1 and 24.3.1:

(setq lexical-binding t)
(let ((x 1))
  (setq foo
        (lambda (y)
          (message "x+y=%d" (+ x y)))))
(run-hook-with-args 'foo 1)

On emacs 24.4.1, it runs and print: "x+y=2" as expected.
On emacs 24.3.1, it gives error:
  run-hook-with-args: Symbol's function definition is void: closure

By the way, this problem is from the compile.el and when
compilation-finish-functions is set, emacs 24.3.1 would give same error:
  Symbol's function definition is void: closure

And 24.4.1 is OK.

My problem is Why 24.3.1 returns this? How can I solve it on 24.3.1?

Thanks,
Zhongwei


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