False positive dependency cycle when a module refers to another of the same name

[bcc32]

Consider the following two files:

import.ml

module Foo = struct end

foo.ml

open! Import

include Foo

The regular compiler handles this pair fine, but building with BuckleScript gives the folowing error:

$ bsb -make-world
ninja: Entering directory `lib/bs'
[4/4] Building src/import.mlast.d
ninja: error: dependency cycle: src/foo.cmj -> src/foo.cmj

[bobzhang]

actually this is beyond the capability of ocamldep style dependency generator(which applies to ocaml), but for this particular case, we can fix it by removing a special cycle of length 0.
it seems you are using Janestreet library with bucklescript, curious how far did you go

[bcc32]

Hmm, I'm not familiar enough with ocamldep to comment, but I'm not quite sure why it compiles with the regular backend then. No matter.

Yes, I encountered this issue when trying to port base to BuckleScript. I have a branch with some patches for 4.02.3, although I'm still running into some cyclic dependency errors of a different sort (I found a workaround for this current issue).