1. 大元の設定ファイル init.el を作成

(setq preferences-directory "~/.emacs.d/")
    (defun load-file-in-dir (dir file)
   (load (concat dir file)))
    ; init22.el, init23.el : それぞれのversion用の設定file.
    (cond
     *1
*2
)

*1:string-match "^23\." emacs-version)      (load-file-in-dir preferences-directory "init23.el"

*2:string-match "^22\." emacs-version) (load-file-in-dir preferences-directory "init22.el"