Install libhere-camlp4-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libhere-camlp4-dev
Description:
Syntax extension for inserting the current location
The Herelib library contains functionality inserting the current location in a source file.
Homepage: http://janestreet.github.io/
Version: 112.35.00-2build1
Section: universe/ocaml