From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#30282: package julia build error
Date: Tue, 13 Mar 2018 18:02:07 +0100
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To: Pjotr Prins <pjotr.public12@thebird.nl>
Cc: 30282@debbugs.gnu.org, Marco van Hulten <marco@hulten.org>

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Hi Pjotr,

Pjotr Prins <pjotr.public12@thebird.nl> skribis:

> One immediate problem is that Julia comes with patches for LLVM 3.9
> only:
>
>   https://github.com/JuliaLang/julia#llvm
>
> it downloads, patches and compiles a specific LLVM. We actually need
> this even though the failing tests are possibly not related (I suspect
> the math libraries are not showing the same results as the built-in
> ones).

Oh, indeed.

For arpack-ng using the right version did help.  It might be similar for
other dependencies.

I tried the patch below (README.md in Julia 0.6.0 says that plain LLVM
3.9 without patches is OK), but that didn=E2=80=99t solve the
distributed.jl-related test failures.

> I think we need to follow the recommended build steps for Julia first.
> Then the tests should pass. Next perhaps link out components and send
> bug reports upstream.

Yeah, though we=E2=80=99d rather extract these bundled pieces somehow.

Thanks,
Ludo=E2=80=99.


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Content-Type: text/x-patch
Content-Disposition: inline

diff --git a/gnu/packages/julia.scm b/gnu/packages/julia.scm
index 41bbc66dd..8e5e81314 100644
--- a/gnu/packages/julia.scm
+++ b/gnu/packages/julia.scm
@@ -314,7 +314,7 @@
         "USE_SYSTEM_LIBGIT2=1"
         "USE_SYSTEM_OPENSPECFUN=1")))
     (inputs
-     `(("llvm" ,llvm)
+     `(("llvm" ,llvm-3.9.1)
        ("arpack-ng" ,arpack-ng)
        ("coreutils" ,coreutils) ;for bindings to "mkdir" and the like
        ("lapack" ,lapack)

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