Re: Using the content of a dynamic variable in a macro

[Eli Zaretskii]

> From: Damien Cassou <damien@cassou.me>
> Date: Sat, 25 Feb 2023 09:34:07 +0100
> 
> I'm wondering why the code below works but won't compile.
> 
> foo.el:
>   (defvar foo-var '((message "hello world")))
>   
>   (defmacro foo-macro ()
>     `(progn
>        ,@foo-var))
>   
>   (defun foo-fun ()
>     (foo-macro))
> 
> 
> $ emacs --batch -l foo.el --eval '(foo-fun)'
> hello world
> 
> $ emacs --batch --eval '(find-file "foo.el")' --eval 
> '(emacs-lisp-byte-compile)'
> In toplevel form:
> foo.el:32:1: Error: Symbol’s value as variable is void: foo-var
> 
> Why isn't the compiler aware of the foo-var variable?

Because lexical-binding is turned on?