To uninstall libghc-classy-prelude-dev just follow these instructions.
/debian/jessie/main///install/index.html typeclass-based prelude Debian 8.0 haskell 0.9.3-1+b2
sudo apt-get remove libghc-classy-prelude-dev
Which will remove just the libghc-classy-prelude-dev package itself.
sudo apt-get remove --auto-remove libghc-classy-prelude-dev
This will remove the libghc-classy-prelude-dev package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for libghc-classy-prelude-dev then this will work.
sudo apt-get purge libghc-classy-prelude-dev
Or similarly, like this libghc-classy-prelude-dev
sudo apt-get purge --auto-remove libghc-classy-prelude-dev
|Maintainer||Debian Haskell Group |