Andreas Enge <andreas@enge.fr> writes:

> On Fri, Jul 08, 2016 at 05:40:07PM +0200, Ricardo Wurmus wrote:
>> A third option would be to move LAPACKE to its own output.
>
> if this is easily possible, I think this option would be more elegant.

A patch is attached.  It produces two output directories:

  /gnu/store/40g0xqcikbz6ya7h2gbyj8gck043ajl8-lapack-3.5.0-lapacke
  /gnu/store/lqnm7fmpz3si0rgyqz1pzax4ipa25xlx-lapack-3.5.0

The closure of the lapacke output is larger:

$ guix size /gnu/store/40g0xqcikbz6ya7h2gbyj8gck043ajl8-lapack-3.5.0-lapacke
store item                                                       total    self
/gnu/store/40g0xqcikbz6ya7h2gbyj8gck043ajl8-lapack-3.5.0-lapacke    97.2     2.9   3.0%
/gnu/store/lqnm7fmpz3si0rgyqz1pzax4ipa25xlx-lapack-3.5.0            71.4     6.4   6.6%
/gnu/store/gaximh48qbqf4712bw224ghq919hqp64-gfortran-4.9.3-lib      64.9    27.1  27.9%
/gnu/store/v39bh3ln3ncnzhyw0kd12d46kww9747v-gcc-4.9.3-lib           60.7    22.9  23.5%
/gnu/store/8m00x5x8ykmar27s9248cmhnkdb2n54a-glibc-2.22              37.9    36.5  37.5%
/gnu/store/5y72ql4zbnbd50lf88k91k0y766kq75x-bash-static-4.3.42       1.4     1.4   1.4%
total: 97.2 MiB

But the plain output is unchanged:

$ guix size /gnu/store/lqnm7fmpz3si0rgyqz1pzax4ipa25xlx-lapack-3.5.0
store item                                                       total    self
/gnu/store/lqnm7fmpz3si0rgyqz1pzax4ipa25xlx-lapack-3.5.0            71.4     6.4   9.0%
/gnu/store/gaximh48qbqf4712bw224ghq919hqp64-gfortran-4.9.3-lib      64.9    27.1  38.0%
/gnu/store/8m00x5x8ykmar27s9248cmhnkdb2n54a-glibc-2.22              37.9    36.5  51.1%
/gnu/store/5y72ql4zbnbd50lf88k91k0y766kq75x-bash-static-4.3.42       1.4     1.4   2.0%
total: 71.4 MiB


I have yet to test that this works as expected with the package I’m
working on.

~~ Ricardo