Stack project for building https://gist.github.com/ploeh/3965c5df81f2a16f41a81cffeaae35c5

README.md

LICENSE

PollingConsumer.cabal

version: 0.1

name:
  PollingConsumer
license:
  MIT
author:
  Mark Seemann
maintainer:
  Mark Seemann <[email protected]>
homepage:
  http://blog.ploeh.dk/2017/06/28/pure-times-in-haskell/
bug-reports:
  https://github.com/ploeh/ploeh.github.com#readme
synopsis:
  A Polling Consumer implementation written in Haskell.
description:
  A Polling Consumer implementation written in Haskell.
  .
  To get started quickly, read the blog post:
  http://blog.ploeh.dk/2017/06/28/pure-times-in-haskell/
category:
  Monads, Haskell
license:
  MIT
license-file:
  LICENSE
cabal-version:
  >= 1.8
build-type:
  Simple
tested-with:
  GHC == 8.0.2
extra-source-files:
  README.md

library
  build-depends:
        base
      , time
      , free
      , random

  ghc-options:
    -Wall

  hs-source-dirs:
    src

  exposed-modules:
    PollingConsumer

stack.yaml

resolver: lts-8.23

Make sure to put the modules from here to a folder called src — or adjust the PollingConsumer.cabal file accordingly. (LICENSE and README.md can be empty files.)