libexpat-ocaml software package provides OCaml expat bindings, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libexpat-ocaml
libexpat-ocaml is installed in your system.
Make ensure the libexpat-ocaml package were installed using the commands given below,
$ sudo dpkg-query -l | grep libexpat-ocaml *
You will get with libexpat-ocaml package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Ocaml |
| Package | libexpat-ocaml |
| Version | 0.9.1+debian1-7+b2 [amd64, arm |
| Description | OCaml expat bindings |
| Sub Section | Ocaml |