[Nix-dev] Update Julia to today's git

[Oscar Blumberg]

>>I'm completely new to Nix so I apologize in advance if this is not the
>>right place.
>>I installed NixOs yesterday and I needed a recent version of Julia
>>(julialang.org) and figured it would be a good way to try out Nix.
>>
>>Here is a patch to nixpkgs that brings julia to today's git
>>(ea277f39ebdf730aabfc422af66e911288380921) and its dependencies to the
>>needed version (liblapack:3.4.2, suitesparse:4.2.0, openblas:0.2.6).
>>Can someone have a look ?
>
> Did you try to make at least libunwind taken from the dependencies?
> Julia has many dependencies and wants to build them itself, but for some
> of them I managed to make Julia take prebuilt ones. If you tried and
> failed to use prebuilt versions of libunwind (and maybe suitesparse),
> I won't try to change it; otherwise it seems worth it to try.
>
>
>
Yes those fetchurl are my mistake and weren't used in the build anyway.
I've however made it to use_system_mpfr and removed the useless fetchs
(including the pcre source one which doesn't seem used).
To do so I had to bump the mpfr version to 3.1.2.
Patch attached. I'll be sure to setup a github fork soon.

Regards,
Oscar
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