What I mean is, "cabal install" is usually a bad idea, with or without sudo. However, you can do "cabal install cabal-dev" and rely on cabal-dev for the rest.

What I mean is, "cabal install" is usually a bad idea, with or without sudo. However, you can do "cabal install cabal-dev" and rely on cabal-dev for the rest. It means you don't have a global package cache, but in this case it's really for the best. Don't forget to add .cabal/bin to your $PATH if you want access to cabal-dev.