Install libghc-setenv-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-setenv-doc
Description:
Cross-platform library for setting environment variables; documentation
This package provides a cross-platform library for setting environment variables. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://hackage.haskell.org/package/setenv
Version: 0.1.1.3-6build1
Section: universe/doc