On Thu, Oct 18, 2018 at 05:33:10AM +0300, Eli Zaretskii wrote:
> > From: Emanuel Berg <moasen@zoho.com>
> > Date: Wed, 17 Oct 2018 20:49:11 +0200
> > 
> > I just downloaded and built the JIT Emacs.

[...]

> > However trying to bring in my own Elisp was
> > another matter. Compilation brought literally
> > hundreds of errors and warnings, files not
> > found, functions not defined, etc. etc.

[...]

> I don't think I understand the problem you are describing.  Using
> Emacs with JIT doesn't require recompiling any Lisp files.
> 
> Also, what kinds of errors and warnings did you see?

Perhaps the version of your "regular" Emacs and your freshly
compiled JIT Emacs are so different that the .elc or the
Lisp libraries aren't quite compatible?

Cheers
-- tomás