Bug#763078: confirmed llvm change broke ghc

[Sylvestre Ledru]

On 27/09/2014 20:17, Joey Hess wrote:
> Confirmed that installing llvm-3.4 and putting /usr/lib/llvm-3.4/bin
> first in PATH before running ghc lets it build working executables on
> armel and armhf.
>
> This is certianly a bug in ghc. It should not depend on llvm, but on the
> llvm-$ver it was built against, and it should use the toolchain from
> that specific version of llvm.
Yes, llvm changes a lot from a version to the other ... :/
> This could also be be considered a bug in llvm. Changing the
> dependency package to use llvm-3.5 less than a week before the slushy
> freeze is perhaps not the best idea?
>
Yes, I know :(
However, 3.5 has been released a few weeks before this freeze, 3.4 is
unmaintained,
3.5 will be maintained a bit more, Ubuntu is also doing the switch to
3.5 and I wanted to default Debian
on the last version. And as you found, the workaround is easy, stick
with 3.4.

Sorry for the inconvenience

Don't hesitate if you need help,
Sylvestre