Dockerfile: build with the HEAD version of cabal-install

This is necessary to avoid haskell/cabal#6125. Fixes haskell/cabal#6125 at last.
peti · Jul 12, 2019 · 3bcd40b · 3bcd40b
1 parent 86caeb2
commit 3bcd40b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Dockerfile b/Dockerfile
@@ -17,7 +17,7 @@ RUN apt-get install -y software-properties-common
 RUN apt-add-repository ppa:hvr/ghc
 RUN apt-get update
 RUN DEBIAN_FRONTEND=noninteractive apt-get install -y unzip libicu-dev postfix
-RUN DEBIAN_FRONTEND=noninteractive apt-get install -y ghc-8.2.2 cabal-install-2.4
+RUN DEBIAN_FRONTEND=noninteractive apt-get install -y ghc-8.2.2 cabal-install-head
 ENV PATH /opt/ghc/bin:$PATH
 RUN cabal v2-update
 RUN apt-get install -y zlib1g-dev libssl-dev