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.. -*- rst -*-
.. -*- coding: utf-8 -*-
============================
A local repository for ocaml
============================
:date: 2013-05-23
:tags: ocaml
:summary: |summary|
:logo: /images/ocaml/camel.jpg
:slug: un-depot-local-pour-ocaml
:lang: en
.. figure:: {filename}/images/ocaml/camel_medium.jpg
:figwidth: 150
:figclass: floatleft
:alt: Pavement
Image : `@Doug88888`_ (creativecommons_)
.. _@Doug88888: http://www.flickr.com/photos/doug88888/3458057235/
.. _creativecommons: http://creativecommons.org/licenses/by-nc-sa/2.0/deed.fr
|summary|
.. |summary| replace::
Today, ocaml is obsolete in the debian packages : the most of the
librairies are still linked with Ocaml3 althought Ocaml4 is out since
almost a year. When we need to develop with Ocaml4, we have to recompile
all the dependencies, but this implies to install them for the whole
system. But we can use a local repository with some findlib configuration.
Findlib is now a required tool for an Ocaml project compilation. Each
application uses now findlib for searching the dependencies, and the linking
phase.
We first need to create a local configuration in wich we write where to find
the packages :
.. code-block:: bash
destdir="/home/chimrod/ocaml/packages/"
path="/home/chimrod/ocaml/packages/:/usr/local/lib/ocaml/4.00.1:/usr/lib/ocaml:/usr/lib/ocaml/METAS"
:destdir: is the path where we want to install the newly compiled packages.
:path: is the path list where to find the packages.
Of course, you need to replace `/home/chimrod/` by your own installation path.
It must be an absolute path.
The path to this file can be saved with the shell environnement ; we just need
to reference it in the `.bashrc` file :
.. code-block:: bash
export OCAMLFIND_CONF=/home/chimrod/ocaml/ocamlfind.conf
That's now : each new package will now be installed in your packages directory,
and the compilation will also look for this path for the required
dependencies : you do not have to install the packages as root anymore.
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