Re: [PATCH] gnu: Add Scikit-learn.

[Andreas Enge]

On Fri, Feb 27, 2015 at 11:48:34PM +0100, Andreas Enge wrote:
> Can we use in the 'source' field something like
> (if (string=? name "python-pycairo"
>               source-x
>               source-y))

We can, but it does not work. The second package inherits not the code to
construct the source, but the already constructed source itself.
One would need a more complicated construction, like putting into this field
a procedure that is evaluated at build time and not at package creation. But
this would modify the basics of our package format (and be rather complicated).

Andreas