Install libcamlp4-ocaml-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libcamlp4-ocaml-dev
Description:
Pre Processor Pretty Printer for OCaml (libraries)
Camlp4 is a software system for writing extensible parsers for programming languages. It provides a set of OCaml libraries that are used to define grammars as well as loadable syntax extensions of such grammars. Camlp4 stands for Caml Preprocessor and Pretty-Printer and one of its most important applications is the definition of domain-specific extensions of the syntax of OCaml. . This package contains CamlP4 libraries.
Homepage: https://github.com/ocaml/camlp4
Version: 4.05+1-2
Section: universe/ocaml