Re: JIT Emacs parallel world

[Andreas Röhler]

On 20.10.2018 12:04, Emanuel Berg wrote:
> Phillip Lord wrote:
>
> > First, move your stuff from Emacs-24 to
> > Emacs-26 -- either one you build or
> > a pre-compiled version.
>
> OK, but this implies the same problem, only
> Emacs-27 JIT is replaced by Emacs-26. I'm happy
> to download and build Emacs-26 from Git but,
> again, how do I give it its own .emacs file and
> .emacs.d directory so not to interfere with my
> repository Emacs-24?

I'm using .emacs only to dispatch

(cond
 ((string-match "^23" emacs-version)
  (load (expand-file-name "~/.gnu-emacs23-all-cvs"))
  (setq custom-file (expand-file-name "~/.gnu-emacs23-cvs-custom")))
 ((string-match "^24" emacs-version)
  (load (expand-file-name "~/.gnu-emacs24"))
  (setq custom-file (expand-file-name "~/.gnu-emacs24-custom")))
 ((string-match "^25" emacs-version)
  (load (expand-file-name "~/.gnu-emacs25"))
  (setq custom-file (expand-file-name "~/.gnu-emacs25-custom")))
 ((string-match "^26" emacs-version)
  (load (expand-file-name "~/.gnu-emacs25"))
  (setq custom-file (expand-file-name "~/.gnu-emacs25-custom")))
 ((string-match "^27" emacs-version)
  (load (expand-file-name "~/.gnu-emacs25"))
  (setq custom-file (expand-file-name "~/.gnu-emacs25-custom"))
  ))

With emacs.d, that's another thing. De facto often loading from 
git-repos setting load-path and require, not from package-manager.

HTH,
Andreas