OPAM is a source-based package manager for OCaml. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow.
OPAM is created and maintained by OCamlPro.
To get started, checkout the Install and Usage guides.
- Make sure you have OCaml and GNU make installed. If you don't have a recent enough version of OCaml (>= 3.12.1) at hand, see next paragraph.
- Run
./configure
- Run
make lib-ext
as advertised by./configure
if you don't have the dependencies installed and only need the opam binary (not the libs). This will locally take care of all OCaml dependencies for you. - Otherwise, make sure to have ocamlfind, ocamlgraph, cmdliner, jsonm, cudf,
dose 3.2.2+opam and re >= 1.2.0 installed. Or run
opam install opam-lib --deps-only
if you already have a working instance. Re-run./configure
once done. - Run
make
- Run
make install
- Run
make libinstall
if needed (this is incompatible withmake lib-ext
, as the opam library would conflict with installed versions of the dependencies)
make cold
is provided as a facility to compile OCaml, then bootstrap OPAM.
You don't need need to run ./configure
in that case, but
you may specify CONFIGURE_ARGS
if needed, e.g.:
make cold CONFIGURE_ARGS="--prefix ~/local"
You'll still need GNU make.
Have a bug or a feature request ? Please open an issue on our
bug-tracker. Please search for existing
issues before posting, and include the output of opam config report
and any
details that may help track down the issue.
The main documentation entry point to OPAM is the user manual,
available using opam --help
. To get help for a specific command, use
opam <command> --help
.
A collection of guides and tutorials is available online. They are generated from the files in doc/pages.
A more torough technical document describing OPAM and specifying the package
description format is available in the
developper manual. make doc
will otherwise make the API documentation available under doc/
.
Keep track of development and community news.
-
Have a question that's not a feature request or bug report? Ask on the mailing list.
-
Chat with fellow OPAMers on IRC. On the
irc.freenode.net
server, in the#ocaml
or the#opam
channel.
We welcome contributions ! Please use Github's pull-request mechanism against
the master branch of the OPAM repository. If
that's not an option for you, you can use git format-patch
and email TODO.
The release cycle respects Semantic Versioning.
- ocaml/opam-repository is the official repository for OPAM packages and compilers. A number of non-official repositories are also available on the interwebs, for instance on Github.
- opam2web generates a collection of browsable HTML files for a given repository. It is used to generate http://opam.ocaml.org.
- opam-rt is the regression framework for OPAM.
- opam-publish is a tool to facilitate the creation, update and publication of OPAM packages.
Copyright 2012-2014 OCamlPro Copyright 2012 INRIA
All rights reserved. OPAM is distributed under the terms of the GNU Lesser General Public License version 3.0.
OPAM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.