Install libghc-statevar-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-statevar-doc
Description:
state variables in Haskell; documentation
This library provides a common abstraction of stateful variables, e.g. IORef and OpenGL's StateVar. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: https://github.com/haskell-opengl/StateVar
Version: 1.1.0.4-4build1
Section: universe/doc