Re: Question related to outputs

[Pjotr Prins]

On Wed, Mar 15, 2017 at 05:24:47PM +0100, Ludovic Courtès wrote:
> So if your package declares “out” and “debug” as its outputs, it must
> always produce both.  Then users can choose to install only one or both,
> but that’s a different issue.

That clarifies that :). Both get built.

> For instance, ‘glibc’ always produces both “out” and “debug”, but you
> can choose which one to install.
> 
> > In gnu/packages/python.scm:L268
> >
> >  (let ((out (assoc-ref outputs "out"))
> >        (tk  (assoc-ref outputs "tk")))
> >   (when tk 
> >     (match (find-files out "tkinter.*\\.so")
> >     ...
> >
> > looks faulty to me as tk always expands to an outputs path.
> 
> It can also be #f in the case of python-minimal.

I'll check on that one.

So, to have different build procedures for the same package I best
define different packages and inherit? Rather than define different
outputs - it just appeared natural to me ;).

Pj.