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Where should opam be installed?
opam needs to initialize its internal state in a ~/. opam directory to work. This command will also automatically pick a compiler to install, unless –bare has been specified. To make your shell aware of what has been installed in opam, some variables need to be set in your environment.
How do I download OCaml for Windows?
Install OCaml, Opam and Cygwin: Download the installation package from this link: http://fdopen.github.io/opam-repository-mingw/installation/. There are both the 32 bit and 64 bit version, but I suggest to install the OCaml 64bit . When running the graphical installation file, it will automatically install OCaml 4.02.
What is opam in OCaml?
opam is a source-based package manager for OCaml. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow. Managing your OCaml installation can be as simple as: opam upgrade # Upgrade the installed packages to their latest version.
How do I run OCaml software?
Starting OCaml
- In a terminal window, type utop to start the interactive OCaml session, commonly called the toplevel.
- Press Control-D to exit the toplevel. You can also enter #quit;; and press return. Note that you must type the # there: it is in addition to the # prompt you already see.
Why can’t Opam install the graphics package?
You can confirm the existence of the Graphics library by running ls ~/.opam/*/lib/ocaml/graphics.cma. If no file is found, then Graphics is not installed and therefore the failure of installation is the valid behavior.
How to install the OPAM package in Fedora?
The opam package for Fedora can be installed with the command: There is not currently a package for CentOS/RHEL. You will need to use our pre-built binaries, or build from sources. The opam package for Mageia can be installed with the command: The opam package for OpenBSD can be installed with the command (since OpenBSD 5.7):
How to install the OPAM package on yay?
The opam package is available in the official distribution. To install it simply run: If you’d like to use the development version there is an opam-git package available in the AUR . Assuming you have yay installed just run the following command:
Is it possible to install OCaml on Opam?
Other than the missing graphics package, my ocaml install is working fine. Here are the contents of the files in ~/.opam/system/build/graphics.1.0 First, graphics-14648-7afd23.err: