Install libcmdliner-ocaml-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libcmdliner-ocaml-dev
Description:
declarative definition of command line interfaces
It provides a simple and compositional mechanism to convert command line arguments to OCaml values and pass them to your functions. The module automatically handles syntax errors, help messages and UNIX man page generation. It supports programs with single or multiple commands (like darcs or git) and respects most of the POSIX and GNU conventions. . This package contains the development modules you need to use Cmdliner in your programs.
Homepage: http://erratique.ch/software/cmdliner
Version: 0.9.8-2build1
Section: universe/ocaml