First of all, as this is my first post ever on this list, to all of you who contribute to ocaml and its "ecosystem": a big thank you (ou encore mieux: merci beaucoup)! It's brilliant stuff.

I'm trying to get as much of the ocaml/opam stack working on cygwin as possible (as if there wasn't enough pain and suffering in the world already). 

Opam compiles without any issues, and I can switch to (let's say) 4.02.1 cleanly.

However, ocamlbuild fails for me in "opam install react" with the following error:

"Failure: ocamlfind not found on path, but -no-ocamlfind not used."

(Note that react is required by utop, for example, so it's a pretty basic requirement.)

This is where the exception is thrown:

It is the result of Command.search_in_path not finding ocamlfind:

Which appears to be caused by file_or_exe_exists not appending ".exe" to the filename when Sys.os_type = "Cygwin" (which is what I see as os_type when compiling on cygwin):

I'm not expert on either ocaml or cygwin, so my analysis may be off.

--

In any case, I'm pretty sure this fairly simple bug is not a (very) recent regression, so I'm wondering if anybody cares about opam/ocaml on cygwin? I'd really like to use opam, because it looks to me this is the community's preferred way of distributing bits. My question is, really, what is the status of ocaml/opam on cygwin? Is there an alternative environment for Windows + opam that works better? (I know about wodi, but I'd prefer opam.) Is it worth spending time fixing these issues on cygwin?

Any thoughts?

Regards,

Gergely