Re: Rebuilding a package after removing a build step

[Konrad Hinsen]

Hi Tobias,

 Geerinckx-Rice <me@tobias.gr> writes:

> 'That is not possible.'  You must somehow not have measured what you thought 
> you measured.

Thanks for restoring my faith in Guix!

You were in fact right, I was not measuring what I thought you measured,
but for an unusual reason.

> Can you 'reproduce' this?  It might still be enlightening to find out
> where things went wrong.

Yes, the behavior is perfectly reproducible. But it was tied to one
package definition. I tried modifying a few other definitions, with
expected outcomes.

So I set out to explore what is special about this package. It's a
definition I had started last week and came back to for finishing
touches. In the meantime, I had done a "guix pull", and with that update
I had retrieved an almost identical definition in the "guix" channel.
Someone else had beaten me to submitting the package!

Unfortunately, when there are several packages with identical name and
version number in two channels, Guix silently chooses one of them.
It would probably be more useful to emit a warning. So I ended up
editing a package definition which would undergo basic checking
by Guile, but then be ignored.

Cheers,
  Konrad.