In case some people feel the need for more context here, the feature that is discussed was explained in a blog post of Alain Frisch:
  http://www.lexifi.com/blog/type-based-selection-label-and-constructors

On Sun, Mar 10, 2013 at 4:04 AM, Markus Mottl <markus.mottl@gmail.com> wrote:
On Sat, Mar 9, 2013 at 6:39 PM, Yaron Minsky <yminsky@gmail.com> wrote:
> A few concerns: one, it's really hard to figure out where the source
> of the conflict is from this message.  It would be nice to get some
> clue from the compiler as to the two definitions that are conflicting.

I haven't investigated this, but my bet would be that the ambiguity is
due to the record in the Core.Std.Date module (y = year).

Regards,
Markus

--
Markus Mottl        http://www.ocaml.info        markus.mottl@gmail.com

--
Caml-list mailing list.  Subscription management and archives:
https://sympa.inria.fr/sympa/arc/caml-list
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
Bug reports: http://caml.inria.fr/bin/caml-bugs