esy build error: 'graphics' cannot be found

[bentxt]

I cannot build with esy

esy
info esy 0.6.2 (using package.json)
ocaml (internal)
ocamlfind: Package `graphics' not found
ocaml (internal)

but it is installed:
ocamlfind query graphics
/Users/ben/.opam/4.10.0/lib/graphics

and ocamlfind can be used to compile a simple test program

ocamlfind ocamlopt -o out -linkpkg -package graphics gtest.ml

[robz]

I believe this is just a warning, since I can successfully use the compiler after running esy.

I haven't found a good way to get the dune dependency tree, but from grepping around, it seems that graphics is referenced by ./lib/lwt/graphics/dune and ./toplevel/examples/lwt_toplevel/dune, and that ./lib/lwt/graphics is referenced by ./toplevel/examples/lwt_toplevel/dune. I’m not sure how the chain of dependencies connects from there to building other things.

In any case, I tried unsuccessfully to bring in the graphics library to package.json. For posterity, here are the errors I encountered:

1. After adding graphics to package.json, there’s an error about not finding x11: https://gist.github.com/robz/a4d7fe9cc97ed2e7e17f867028f49556
2. I found this related issue about that error: Unable to install on Mac OS 10.14.6 ocaml/graphics#16. The folks working on graphics might have fixed it with this commit: ocaml/graphics@b212a8b. I previously had "@opam/graphics": “*” which resolved to graphics@opam:4.08.1. But setting it to "@opam/graphics": "^5.0.0”, which would include the fix, causes an error about ocaml versions conflicting: https://gist.github.com/robz/8efa68d9dd5718f99bbe0f5dda2e19fd
3. If I change package.json devDependencies.ocaml to “~4.9.0”, there’s an error about circular dependency with dune, which I don’t understand: https://gist.github.com/robz/47fbb143918f5be2f199b7cea767f31f

[Lupus]

@robz you want to look at this announcement, dune-deps might be helpful in building dune dependency tree.