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We have created a VSCode walkthrough guiding users through installing OCaml with opam.
Previously, I discussed the installation order for a simple directed acyclic graph without any cycles. However, opam packages include post dependencies. Rather than package A depending upon B where B would be installed first, post dependencies require X to be installed after Y. The post dependencies only occur in a small number of core OCaml packages. They are quite often empty and exist to direct the solver. Up until now, I had been using a base layer with an opam switch containing the base compiler and, therefore, did not need to deal with any post dependencies.
Dune Developer Preview now supports direct OCaml compiler installation, streamlining setups and enabling shared installations across projects for faster development.
OPAM 1.2.2 has just been released. This fixes a few issues over 1.2.1 and brings a couple of improvements, in particular better use of the solver to keep the installation as up-to-date as possible even when the latest version of a package can not be installed. Upgrade from 1.2.1 (or earlier) See the...