Since you're on Debian you can use the awesome Update Alternatives to install Haskell, which is an even better way in my opinion: https://github.com/byrongibso

Since you're on Debian you can use the awesome Update Alternatives to install Haskell, which is an even better way in my opinion: https://github.com/byrongibson/scripts/blob/master/install/haskell/README.md https://github.com/byrongibson/scripts/blob/master/install/h... Tons of advantages to doing it that way, including the ability to easily maintain multiple versions of both GHC and Platform on the same system and swap between them with a single command. Also doesn't clutter up /usr/local/ with binaries not managed by apt or dpkg. More generally, update-alternatives is a godsend for Stable users. It's like RVM or RBENV in the Ruby world - lets you install and manage multiple versions of the same platform and easily swap between them with a single command, including the system version from repos if you want. It frees you from out of date software in the repos while still providing a system to manage the complexities of it all.