Re: false warnings when compiling with lexical-binding and cl-lib.

[Stefan Monnier]

> here a sample file containing a function using loop:

> --8<---------------cut here---------------start------------->8---
> ;;; test.el --- test loop -*- lexical-binding: t -*-

> (require 'cl-lib)

> (defun test-with (l)
>   (cl-loop with lst
>            for i in l
>            unless (member i lst)
>            collect i into lst
>            finally return lst))
> --8<---------------cut here---------------end--------------->8---

> When compiling this file I have a warning about unused arg `lst'.
> Is this wanted ?

No, it's not wanted.  But noone so far as been able to come up with
a patch to fix it (the code to fix is the cl-loop macro: look at the
macro-expanded code to see the unused `lst').


        Stefan