RE: [External] : Does defvar-local has same effect as make-variable-buffer-local?

[Drew Adams]

> (defvar rcd-current-hash nil)
> (make-variable-buffer-local 'rcd-current-hash)
> 
> Is the above totally equivalent to this below?
> 
> (defvar-local rcd-current-hash nil)

Ask Emacs.

`C-h f defvar-local', then click link `subr.el':

(defmacro defvar-local (var val &optional docstring)
  "..."
  ;; Can't use backquote here, it's too early in the bootstrap.
  (list 'progn (list 'defvar var val docstring)
        (list 'make-variable-buffer-local (list 'quote var))))

So yes.  Without the fiddling for presence in `subr.el'
that would be just:

(defmacro defvar-local (var val &optional docstring)
  `(progn (defvar ,var ,val docstring)
          (make-variable-buffer-local ',val)))