Ricardo Wurmus <rekado@elephly.net> writes:

> Here’s mine:
>
> --8<---------------cut here---------------start------------->8---
> (define-public my/emacs
>   (package (inherit emacs)
>     (name "my-emacs")
>     (version "26.0.91")
> [...]
> --8<---------------cut here---------------end--------------->8---

Note that RC1 is out.

> Since I don’t know what the source code looks like, I can only guess
> that maybe you need to bootstrap the build system first.

No, my local folder has all the files, including the "configure" file.
The whole point of working over a directory instead of an archive or a
git reference is that all files are re-used as-is.

-- 
Pierre Neidhardt

When in doubt, tell the truth.
		-- Mark Twain