This page describes how to install and configure OPAM. For further help on how to use OPAM, either read
opam --help or move on to the Basic Usage guide.
You can use the OPAM package of your distribution if available. Here is a list of supported distributions:
yaourt -S opam
add-apt-repository ppa:avsm/ppa apt-get update apt-get install ocaml opam
Binary packages of OPAM 1.1.0 are available for the testing and unstable distributions. OPAM 1.1.1 Shoud be available shortly, see here for the latest. Wheezy users are left with the options of compiling from source, pinning the packages from the testing repository, requesting a backport from Debian, or using our binary installer below.
The opam package for Mageia can be installed with the command:
brew install opam # using Homebrew on OSX Mavericks brew install opam --without-aspcud # using Homebrew on OSX Mountain Lion (or lower) port install opam # using MacPort
See also howto setup Emacs.app for opam usage.
Pre-compiled versions for most common architectures and OSes are available on the Github "releases" page. We also provide a very simple installer script that will automatically download the right version for you, put it in your binary directory and initialize it.
wget https://raw.github.com/ocaml/opam/master/shell/opam_installer.sh sh ./opam_installer.sh /usr/local/bin
You can also specify which version of OCaml you want to install:
sh ./opam_installer.sh /usr/local/bin 3.12.1 # Install the latest OPAM and OCaml 3.12.1 sh ./opam_installer.sh /usr/local/bin system # Install the latest OPAM using the system compiler (if any)
Sources of the latest stable version of OPAM are available on Github. You can also download the full archives, including OPAM dependencies:
1.1.1 MD5 (opam-full-1.1.1.tar.gz) = a7bebe947b3e6c1c10ccafabb839d374
1.1.0 MD5 (opam-full-1.1.0.tar.gz) = d6e2f56b10c0be73b5677963e6659d24
Once the archive downloaded and extracted, you can then run the usual commands:
./configure && make && make install
See Advanced Install guide for more information.
ocamlbrew is a script that can bootstrap an OCaml environment including OPAM, from source. This option does not require an existing OCaml installation, or a pre-compiled OPAM binary for your platform. To bootstrap a new OCaml environment including OPAM, make sure that you have the necessary pre-requisites installed to run ocamlbrew, and then run:
curl -kL https://raw.github.com/hcarty/ocamlbrew/master/ocamlbrew-install | env OCAMLBREW_FLAGS="-r" bash