Install libghc-cpphs-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-cpphs-dev
Description:
cpphs-library for haskell
This package provides some of the features of cpphs as a haskell library.
Homepage: http://projects.haskell.org/cpphs/
Version: 1.20.8-1
Section: universe/haskell