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From: zimoun <zimon.toutoune@gmail.com>
Subject: Re: Parameterized packages
Date: Mon, 20 Jan 2020 15:34:03 +0100
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To: Pierre Neidhardt <mail@ambrevar.xyz>
Cc: Guix Devel <guix-devel@gnu.org>

Hi Pierre,

On Fri, 17 Jan 2020 at 17:56, Pierre Neidhardt <mail@ambrevar.xyz> wrote:

> In this case, it's trivial to use parameters to influence which compiler
> the build system will use.

I am not sure that "trivial" is the correct word. ;-)


> For gnu-build-system (with gcc, clang, etc.) we can probably do similar
> things already by setting CC.

Yes, and about Rust, Ruby, Perl, etc.

I do think it is the right abstraction. :-)


> The solution to your problem in my opinion is simply to expose just the
> right amount of options through #:arguments for all build systems.
> Would that be satisfactory to you?

Maybe. I am not sure to see what do you mean by '#:arguments'.

If you mean something that does what does
`package-with-explicit-python' to rewrite the 'arguments' field, yes
it is something in this flavor. But generic enough.

For example compare `package-with-explicit-python' and
`package-with-explicit-ocaml'.

Well, something to tweak `lower'. And the question is: what is the
right abstraction?


All the best,
simon