Bug#850915: ghc: Please switch to llvm 3.8 or, better, 3.9

[Emilio Pozuelo Monfort]

On Wed, 11 Jan 2017 09:21:54 +0100 Sylvestre Ledru <sylvestre at debian.org> wrote:
> Source: ghc
> Severity: important
> 
> Hello,
> 
> The armel build issue on 3.8 and 3.9 has been fixed thanks to a fix in libstdc++.
> ghc can now change llvm version.
> 
> This is the last package using llvm 3.7, blocking its removal.
> (note that I stopped caring about 3.7 more than a year ago, it is far behing 3.8 or 3.9
> in term of maintenance/support).

Probably need to backport this upstream commit:

https://git.haskell.org/ghc.git/commitdiff/672314cbeb8ac386a58f17dc4650dbdf4c55d8b5

Cheers,
Emilio