Hello, what is the state of cross-compilation in Ocaml world? By cross-compilation I mean being compiling Ocaml code on for example some Windows or Linux system and targeting some other systems like Mac OSX. Is there ready to use toolchain builds that is able to cross-compile? Or do I need to build …

Dune, the OCaml build system, is adding cross-compilation in the 1.0+beta17 version. Unfortunately there were some issues so it would seem that the release is still postponed on opam and github. See the following thread for more on that. [image] ANN: dune (jbuilder) 1.0+beta17 Comm…

I have a plan to write a blog post explaining the cross compilation support in dune and the opam-cross-x repos a little better. It’s not my first priority currently, but expect such a thing post February.

I’m still not sure how to do this…

I’ve experimented with non-native build targets quite a bit lately, and opam-cross-windows was a really great experience. After following their readme to the letter (save for an opam pin step that is no longer needed), I can build windows executables with just “OCAMLFIND_TOOLCHAIN=windows dune build…

What about embedded targets like Cortex-M (STM32F3/F4)? How much memory should it have to have to run OCaml-compiled programs?

You may find this page interesting. To summarize, with a lot of work you can make a subset of OCaml programs runnable on a microcontroller. You will also need to rewrite OCaml’s runtime and develop a new GC for it. In real life, no, you can’t run OCaml on a microcontroller. You need at least a coup…

Hmm, found this project , that is also quite relevant to you, it is quite alive, so maybe you have chances :slight_smile:

Ocaml cross compiler?

Ecosystem

borisd June 22, 2019, 5:39pm 5

Have there been new developments on this front?

Cross Compilation work

Topic		Replies	Views
[To be solved (hopefully)] Cross compiling project using jbuilder Ecosystem jbuilder , cross-compilation	2	1857	January 24, 2018
Cross-compiling implementations / how they work Learning cross-compilation	16	5072	August 11, 2023
Cross compilation from OSX/Windows to Linux Ecosystem build , cross-compilation	5	3247	September 14, 2017
[ANN] Ocaml-windows 5.1.1 Ecosystem windows , cross-compilation	0	444	March 8, 2024
Dune, cross compilation, and Raspberry Pi Ecosystem dune	8	3598	December 20, 2023

Ocaml cross compiler?

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