Distributing OCaml binaries for MacOS

[WardBrian]

If you are interested in building universal or ‘fat’ binaries, this other thread may be useful as well:

Building for MacOS x86 and arm64 with setup-ocaml

This thread seems to be at the top of search results for “ocaml universal binary”, so forgive the late bump. I was recently looking into this question. It turns out this is relatively easy using the lipo tool Apple provides and something like github actions where you have access to multiple machines: Build on an Intel Mac (github actions still has these under the macos-13 label). Upload an artifact of the executable Build on a Apple Silicon mac (gh actions macos-14 or macos-latest). Upload a…