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Re: Recursive substitute-keyword-arguments / setting default on build sy

From: Hilton Chain
Subject: Re: Recursive substitute-keyword-arguments / setting default on build system
Date: Wed, 27 Sep 2023 22:13:50 +0800

Hi Nils,

On Tue, 26 Sep 2023 19:08:06 +0800, wrote:
> Hello,
> I use a slightly customized emacs package, and want to use it as the package 
> that is used in emacs-build-system for the emacs plugins I'm using.
> The default emacs gets garbage collected and takes quite a while to 
> reinstall, I would like to avoid that. Also, it seems cleaner to build the 
> plugins with the exact version that they will be used with.
> Here's what I have:
> (define emacs-package
>   ((const
>      ((options->transformation
>         '((with-configure-flag . 
> "emacs=--program-transform-name='s/^ctags$/ctags.emacs/'")))
>       emacs))))
> (define (set-build-system-emacs plugin-package)
>   (package
>     (inherit plugin-package)
>     (arguments
>       (substitute-keyword-arguments (package-arguments plugin-package)
>                                     ((#:emacs emacs) `,emacs-package)))))
> (map set-build-system-emacs package-list)
> From what I can tell this does work for the packages in package-list, but not 
> for any inputs to those packages. That makes total sense to me, but I don't 
> know how to solve it.
> Any pointers? Or is it possible to set the default package for a build 
> system, removing the need for this mapping altogether?

`package-input-rewriting' (documented in [1]) can be used for the

--8<---------------cut here---------------start------------->8---
(map (package-input-rewriting
      `((,emacs-minimal . ,emacs-package)
        (,emacs . ,emacs-package)))
--8<---------------cut here---------------end--------------->8---


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