[Pkg-julia-devel] Bug#803644: fixed in julia 0.4.2-1

[Peter Colberg]

Hi Emilio,

On Tue, Dec 08, 2015 at 11:52:54AM +0100, Emilio Pozuelo Monfort wrote:
> Your package now build-depends on llvm-3.8 (as the first alternative). That is
> built from src:llvm-toolchain-snapshot, which means it won't migrate to testing,
> and thus your package won't either.

I was fully aware that LLVM 3.8 has not been released yet. However, I
neglected to consider whether llvm-toolchain-snapshot is in testing.

> Please drop that, or at least make llvm-3.7 the first alternative.

Julia 0.4 requires LLVM == 3.3 or >= 3.8 to perform adequately.

LLVM 3.4 to 3.7 exhibit significant to grave performance issues
depending on the architecture [1], which the upstream maintainers
are aware off.

[1] https://github.com/JuliaLang/julia/issues/14191

As an alternative to not having Julia 0.4 in Debian at all, would you
agree to the Julia team reuploading the LLVM 3.3 package to unstable
under our maintainership?

We would transition to LLVM 3.8 once Julia 0.5 is released next year.


On the topic of LLVM, I have suggested [2] to promote selected LLVM
versions to long-term supported (LTS) releases that are maintained
by downstream users.

[2] https://github.com/JuliaLang/julia/issues/14191#issuecomment-160730008

Cheers,
Peter