RE: [Caml-list] Flexdll circular dependency fix uses system provided flexdll.h [was: opam-cross-windows]

[David Allsopp <dra-news@metastack.com>]

Michael Soegtrop wrote:
> Dear David,
> 
> > Being unable to find a .cmx is unlikely to be a flexlink problem
> (flexlink handles .o files, not .cmx).
> 
> You are right. I used the MinGW ocaml compiler under Cygwin for so long
> without issues, that I forgot that they are not host=cygwin. It was a
> simple path incompatibility.
> 
> This was easy to fix, but this didn't get me that much further. With cross
> opam I get tiny path issues (a backslash here and there) in every other
> module.
> 
> I guess I need to build a real host=Cygwin target=MinGW OCaml. Let's see
> ...

Indeed - which is why, for now, my native Windows opam doesn't allow installation of the Cygwin ports (because these issues are too easy to hit).

In my opinion, this is all part of fixing the native Windows build system. Once the native Windows ports are built "properly" using configure, it should be relatively easy to have an ocamlopt with host=Cygwin target=MinGW (which is an ocamlopt producing native Windows code, but accepting Cygwin-style paths, etc.) and also more exotic combinations such as host=MinGW target=Cygwin


David