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haskell-xenial #2195

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e1528532 commented Aug 18, 2018


add ghc to our xenial docker image to test on ubuntu as there seem to be complications on xenial #2180


  • I added unit tests
  • I ran all tests locally and everything went fine
  • affected documentation is fixed
  • I added code comments, logging, and assertions (see doc/
  • meta data is updated (e.g. of plugins)


@e1528532 e1528532 force-pushed the e1528532:haskell-xenial branch 3 times, most recently from 10f1a77 to 93241c0 Aug 18, 2018

@@ -56,4 +58,21 @@ RUN useradd \
--shell "/bin/bash" \

# Handle Haskell dependencies
# We use ghc8.2.2 from the haskell platform website here, as xenial only provides ghc7
RUN wget \

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sanssecours Aug 19, 2018


I assume building Haskell from source will take quite some time. Would it maybe make sense to use the personal package archive (PPA) for GHC of Herbert V. Riedel instead? Since the official Haskell homepage als mentions this PPA, I guess the support for this third party repo should be quite good.

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markus2330 Aug 19, 2018


Do we already know what @Piankero did?

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e1528532 Aug 20, 2018

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this is the dockerfile so it will be only built once, imo that shouldn't make a big difference. also building that locally didn't take that long, it only builds some libraries and not ghc as a whole.
This branch should mostly show whether its possible on xenial in general and doesn't directly resemble what piankero did no. it can be seen as some kind of tutorial i guess how to install it on xenial.


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e1528532 commented Aug 21, 2018

interesting. It compiled successfully (@Piankero i hope this helps you in getting it running), but has a test error in the regex dispatcher tests, will investigate. As the remaining haskell tests work it seems to be specific to that setup, maybe due to old c2hs/alex/happy versions?


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markus2330 commented Aug 21, 2018

Thank you for looking into this! It seems like compatibility between Haskell libraries is really quite neglected.

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