[Haskell-cafe] GHC 8.2.2 for WSL Ubuntu 16.04

Herbert Valerio Riedel hvriedel at gmail.com
Tue Feb 13 13:35:10 UTC 2018

Hello *,

Even though WSL may eventually address this issue for good, I've setup
a new WSL-optimised flavour of my PPA for Ubuntu 16.04 LTS


over at


I don't have experience myself with Ubuntu on WSL, but it should be
simply a matter of using

  sudo add-apt-repository ppa:hvr/ghc-wsl
  sudo apt-get update

and then

  sudo apt-get install ghc-8.2.2-prof cabal-install-head

Then simply add `/opt/ghc/bin` to your `$PATH` (see instructions at
https://launchpad.net/~hvr/+archive/ubuntu/ghc )

There are also builds of GHC 8.0.2 and GHC 8.4.1-alpha (may still be
building as of writing) in this new ghc-for-wsl PPA.

I'd appreciate if somebody could test whether these GHC binaries work
as intended on the non-insider Windows 10 builds and let me know.


On Tue, Feb 13, 2018 at 12:21 PM, Yitzchak Gale <gale at sefer.org> wrote:
> I wrote:
>>> I have made available a build of GHC 8.2.2 with the config option:
>>> --disable-large-address-space
>>> [2] https://github.com/Microsoft/WSL/issues/1671
> Shao Cheng wrote:
>> Thank you! A simpler fix for WSL ghc users is upgrading to fast ring of
>> insider builds, the mmap overhead is much lower and ghc startup lag is
>> barely noticable.
> Thanks, that's good news. I can't use an insider build - I need to be on
> standard Windows in order to support our customers. The latest reports
> in the GitHub issue seemed to indicate that the slowness is still quite
> significant even on insider builds. I'm glad to hear you say that this is no
> longer true. I am looking forward to regular GHC binary tarballs working
> normally on regular WSL sometime in the near future.
> Yitz
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