Guillaume Le Vaillant <glv@posteo.net> writes:

> The ':implementation-type' or ':function' keywords of ASDF
> configuration files described in [1] and [2] could be useful to do that.
>
> Now, let's suppose that we put the sources in cl-xyz, the SBCL
> pre-compiled files in cl-xyz:sbcl and the ECL pre-compiled files in
> cl-xyz:ecl.
> If a user installs only cl-xyz (the sources) and loads the system using
> SBCL or ECL, I think he would expect the lisp implementation to compile
> the thing and store the compiled files in the default
> '$HOME/.cache/common-lisp/...' location, because he didn't install the
> pre-compiled files.
> So we would need the ASDF output-translation configuration to be able to
> say something like: "if the pre-compiled files for the running lisp
> implementation exist in '/gnu/store/...' and if the Guix package for
> these pre-compiled files is installed in the current profile or
> environment, then use them, else use the default
> $HOME/.cache/common-lisp/...' directory".
>
> I guess cl-xyz:sbcl and cl-xyz:ecl would also need to have links to the
> ASDF configuration and to the sources in cl-xyz, in case the user
> installs only cl-xyz:sbcl or only cl-xyz:ecl.

Agreed on all points!

-- 
Pierre Neidhardt
https://ambrevar.xyz/