Hi Pjotr,

Pjotr Prins <pjotr.publi...@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’t 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’d rather extract these bundled pieces somehow.


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 @@
-     `(("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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