Hi Lawrence, On Mon, Jan 28, 2019 at 09:37:23PM -0600, Lawrence Bottorff wrote:
So I've set up the Herbert V. Riedel PPA
sudo add-apt-repository ppa:hvr/ghc sudo apt-get update
then I installed ghc-8.6.3 and cabal-install-2.4
sudo apt-get install ghc-8.6.3 sudo apt-get install cabal-install-2.4
. . . and stuff seems to be installing. However a check finds no cabal and ghc version 8.2.2
What am I missing?
Herbert's ppa installs 'ghc' to '/opt/ghc/8.6.3', certainly the same is the case for 'cabal-install'. Below '/opt/ghc' you can have multiple installed ghcs at once. The easiest way to configure which ghc should be used is by defining a GHC_VERSION environment variable: export GHC_VERSION=8.6.3 export PATH=/opt/ghc/$GHC_VERSION/bin:$PATH Grettings, Daniel