I had some weird linker issues (see https://circleci.com/gh/jhedev/todobackend-haskell/48) when using an older gcc 4.9. So switching to gcc-4.6 helped. 

I think you are using the newer ubuntu 14.04 build image which does not include gcc-4.6. Maybe you can try removing the update alternatives commands.

For your problem I guess its more important to set `-j 1` for the `stack build` command. To avoid getting no output etc.

Regards,
Joel
On 24 Aug 2016, at 18:36, Nicola Gigante <nicola.gigante@gmail.com> wrote:


Il giorno 24 ago 2016, alle ore 18:13, Joel H <joel.hermanns@gmail.com> ha scritto:

Hi,

I've used this one: https://github.com/jhedev/todobackend-haskell/blob/master/circle.yml And it worked great so far.

Maybe this helps.


Thanks!

It fails on the update-alternatives command.

'update-alternatives: error: alternative path /usr/bin/gcc-4.6 doesn't exist’

What should they do?

Regards,
Joel

Greetings,
Nicola