[Haskell-beginners] Install mess
daniel.trstenjak at gmail.com
Tue Jan 29 11:18:37 UTC 2019
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:
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