NixOS/nixpkgs — pull request #4215 by vbgl (2014-09-22 23:45:35+00:00)
Title: Adds camlp4

Camlp4 is a software system for writing extensible parsers for
programming languages.

Camlp4 was part of the official OCaml distribution until its version
4.01.0.

Homepage: https://github.com/ocaml/camlp4