Install libghc-filelock-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-filelock-dev
Description:
portable interface to file locking (flock / LockFileEx)
This package provides an interface to Windows and Unix file locking functionalities. . This package provides a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://github.com/takano-akio/filelock
Version: 0.1.1.2-1
Section: universe/haskell